Disclosed are a method and device for identification of accessory, an electronic device, and a non-transitory computer-readable storage medium. The method for identification of accessory includes: providing a host assembled with at least one accessory, where the host is provided with at least one detection element; obtaining status information of the at least one detection element, where each of the at least one accessory is provided with at least one trigger element, where the status information includes triggered and untriggered; determining arrangement of the at least one trigger element of the respective accessory according to the status information of each of the at least one detection element; and determining a type of the respective accessory according to the arrangement of the at least one trigger element. The method for identification of accessory achieves identification of type of accessory along with a reduced cost and occupied space.
G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
2.
METHOD FOR OPTIMIZAING IN-VEHICLE SOUND FIELD, SOUND SYSTEM, ELECTRONIC DEVICE AND STORAGE MEDIUM
Provided is a method for optimizing in-vehicle sound field. In the method, firstly calculates the actual acoustic response of each seat in the cabin to the preset audio signal played by each speaker, and calculates ideal acoustic response of the preset audio signal at the best listening position in the listening room. Then, based on that the actual acoustic response is consistent with the ideal acoustic response, the sound field of each seat in the cabin is reconstructed to obtain the sound field reconstruction result of each seat, so that the sound system controls each speaker to perform the sound reproduction of the audio signal to be played based on the sound field reconstruction result. Therefore, the actual acoustic response at each seat is consistent with the ideal acoustic response of the listening room, thus ensuring the acoustic experience of the passengers at each seat in the cabin.
H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
H04S 3/00 - Systèmes utilisant plus de deux canaux, p. ex. systèmes quadriphoniques
H04S 3/02 - Systèmes utilisant plus de deux canaux, p. ex. systèmes quadriphoniques du type matriciel, c.-à-d. dans lesquels les signaux d'entrée sont combinés algébriquement, p. ex. après avoir été déphasés les uns par rapport aux autres
The present invention provides a speaker including a housing and a moving iron assembly. The moving iron assembly includes a first magnetic structure and a second magnetic structure, a magnetic induction diaphragm that has a suspension, a first moving iron unit and a second moving iron unit located inside the suspension, and a first coil and a second coil. The side where the first coil and the second coil are away from each other respectively correspond to the first magnetic structure and the second magnetic structure. Compared with the prior art, the magnetic flux control of the moving iron assembly circuit of the speaker is strong, and the driving force is improved.
The present invention relates to the field of electroacoustic conversion, in particular to a voice coil winding method, a voice coil, and a loudspeaker provided with the voice coil. The voice coil is formed by winding a wire, the winding method comprising the following steps: using the wire to wind an inner-layer wire layer; winding a first outer-layer wire layer, the first outer-layer wire layer being wound on an outer side of the inner-layer wire layer; winding a second outer-layer wire layer, the second outer-layer wire layer being wound on an outer side of the first outer-layer wire layer. The voice coil of the present invention employs a double diagonal or triple diagonal pulling process to adjust the structure and position of the outermost few turns of the voice coil, so as to obtain a voice coil arrangement and configuration with relatively good harmonic distortion, which allows the voice coil to be effectively adjusted in terms of flatness and symmetry so as to improve distortion. A voice coil with such a structure can be used in loudspeakers even when the height of the voice coil cannot be effectively increased, thereby effectively compensating for deficiencies caused by the demand for thinner and more lightweight mobile phones.
Sound-absorbing particles, a method for preparing the same and a related device are provided. The method for preparing the same includes: adding powdered molecular sieve into water and stirring evenly, and adding adhesive and continuing to stir evenly to obtain precursor slurry; adding the precursor slurry, as a dispersed phase, into a microfluidic device, and dispersing, by the microfluidic device, the precursor slurry using a continuous phase into emulsion droplets flowing in a front section of a microchannel of the microfluidic device; extruding the emulsion droplets to have a predetermined shape by adjusting a shape of a rear section of the microchannel of the microfluidic device to obtain deformed emulsion droplets; solidifying the deformed emulsion droplets by setting a temperature in the rear section of the microchannel, to obtain solidified emulsion droplets; and sublimating and drying the solidified emulsion droplets to obtain the sound-absorbing particles.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
6.
IN-VEHICLE ADAPTIVE SOUND PLAYBACK METHOD, SOUND SYSTEM AND DOMAIN CONTROLLER
The present application provides an in-vehicle adaptive sound playback method, a sound system, and a domain controller. The present application utilizes a domain controller to obtain environmental data indicative of the environment of the cockpit, analyze sound playback parameters corresponding to the environmental data, and then regulate the physical state of each speaker according to the physical state parameters, process the audio signals to be played back according to the sound effect parameters, and finally transmit the processed target audio signal to each speaker regulated, and the loudspeakers carry out sound playback of the target audio signal. It is understood that when the environment of the cockpit changes, the sound playback parameters will also change accordingly, i.e., the sound playback has strong adaptability to different cockpit environments, and the optimal sound playback effect can be obtained under different cockpit environments, thereby bringing a preferred acoustic experience for the user.
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 29/00 - Dispositifs de contrôleDispositifs de tests
7.
ACCESSORY IDENTIFICATION METHOD, ACCESSORY IDENTIFICATION APPARATUS, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM
Embodiments of the present disclosure relate to the field of electronic product accessories, and provides an accessory identification method, an accessory identification apparatus, an electronic device, and a computer-readable storage medium. The accessory identification method comprises: providing a main unit equipped with an accessory, a detection element being provided in the area of the main unit close to the accessory; acquiring state information of the detection element, a trigger element being in the area of each accessory close to the main unit, the number of trigger elements on one accessory being less than or equal to the number of detection elements on the main unit on the corresponding area, the state information comprising a triggered state and a non-triggered state, if the detection element detects a matched trigger element, the state information being a triggered state, and if the detection element does not detect a matched trigger element, the state information being a non-triggered state; determining the arrangement situation of the trigger element on the accessory on the basis of the state information of each detection element; and determining the type of the accessory equipped on the main unit on the basis of the arrangement situation of the trigger element on the accessory. At least the type of the accessory can be identified, the cost is reduced, and the occupied volume is reduced.
G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
G01B 7/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques
The present disclosure discloses a microphone including a housing, a printed circuit board assembled with the housing for forming a first cavity and a second cavity, a first chip component, a second chip component, and a first metal layer, the first chip component includes a first MEMS chip and a first ASIC chip, the second chip component includes a second MEMS chip and a second ASIC chip, the housing is fixed with a side of the first metal layer away from the printed circuit board. Compared with the related art, a microphone disclosed by the present disclosure could avoid a heat generated by the operation of the first AISC chip and the second ASIC chip affecting the performance of other devices.
A microphone signal beamforming processing method and related products are provided. The method includes: obtaining a frequency domain signal of each of at least three microphones by performing time-frequency transforming on first output signals, and performing a plurality of different groups of beamforming preprocessing on the frequency domain signals; performing a plurality of different groups of cross-pattern analysis on the plurality of beam signals to obtain a plurality of positive weighting coefficients, multiplying the plurality of positive weighting coefficients to obtain a combined coefficient, and multiplying the combined coefficient with the frequency domain signal of any one of the at least three microphones to obtain a weighted spectral component; and performing inverse time-frequency transforming on the weighted spectral component. In the disclosure, channel separation is better achieved using combined cross-pattern analysis than using traditional methods, resulting in narrower beams with excellent sidelobe suppression and higher signal-to-noise ratio.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse
H04R 29/00 - Dispositifs de contrôleDispositifs de tests
10.
MICROPHONE SIGNAL BEAMFORMING PROCESSING METHOD, ELECTRONIC DEVICE AND STORAGE MEDIUM
The embodiments of the present invention relate to the technical field of microphone signal processing. Disclosed is a microphone signal beamforming processing method. In the present invention, the method comprises: performing time-frequency transformation on first output signals corresponding to a plurality of microphones, the number of which is no less than three, to obtain frequency-domain signals, and performing a plurality of different sets of beamforming preprocessing on the frequency-domain signals of the plurality of microphones to obtain a plurality of different beam signals; performing a plurality of different sets of cross-mode analysis on the plurality of beam signals to obtain a plurality of positive weighting coefficients; multiplying the plurality of positive weighting coefficients to obtain a combined coefficient, and multiplying the combined coefficient by a frequency-domain signal of any microphone to obtain a weighted spectral component; and performing inverse time-frequency transformation on the weighted spectral component to obtain second output signals corresponding to the plurality of microphones. Compared with conventional methods, combined cross-mode analysis used in the present invention achieves better channel separation, thereby obtaining narrower beams having great sidelobe suppression and a higher signal-to-noise ratio.
A method for winding a voice coil, a voice coil and a speaker. The voice coil is formed by winding wires and the method includes forming an inner wire layer by winding wires; forming a first outer wire layer by winding wires on an outer side of the inner wire layer; and forming a second outer wire layer by winding wires on an outer side of the first outer wire layer. The structure and position of the outer wire layer(s) of the voice coil is adjusted by double-obliquely-pulling or triple-obliquely-pulling to obtain an arrangement combination structure of the voice coil with better harmonic distortion, and flatness and symmetry of the voice coil are adjusted to ameliorate distortion. The voice coil is applicable to a case that height of the voice coil is not increased for a speaker, and the defects caused by lightness/thinness of a phone are overcome.
A microphone, comprising a housing (1), a circuit board (2) covering and fixed to the housing (1) and defining a first cavity (104) and a second cavity (105) together with the housing (1), a first chip assembly (3) fixed on the side of the circuit board (2) close to the housing (1) and located in the first cavity (104), and a second chip assembly (4) fixed on the side of the circuit board (2) close to the housing (1) and located in the second cavity (105), wherein the first chip assembly (3) comprises a first ASIC chip (301) and a first MEMS chip (302), and the second chip assembly (4) comprises a second ASIC chip (401) and a second MEMS chip (402). The microphone further comprises a first metal layer (5) fixed on the side of the circuit board (2) close to the housing (1) and surrounding both the first chip assembly (3) and the second chip assembly (4). The microphone can prevent the problem that heat generated by operation of the ASIC chips affects performance of other components by means of heat conduction via a substrate of the circuit board (2) or heat dissipation via thermal motion of air.
A sound-absorbing microsphere and a preparation method therefor, and a loudspeaker. A sound-absorbing microsphere (100) is composed of a molecular sieve and an adhesive. The sound-absorbing microsphere (100) comprises a spherical body (101), and one or more hollow structures (102) recessed from the surface of the spherical body (101); and the maximum depth or the maximum width of the hollow structure (102) is 2% to 50% of the diameter of the spherical body (101). By forming the one or more hollow structures (102) in communication with the outside in the sound-absorbing microsphere (100), the sound-absorbing microsphere has a larger effective surface area and can adsorb more gas molecules, thereby achieving a better sound absorption effect, and the sound-absorbing microsphere filled in a loudspeaker (10) can achieve a better frequency reduction effect and significantly improve the acoustic performance of the loudspeaker. Compared with the prior art, the sound-absorbing microsphere (100) has a large effective surface area, and achieves good frequency reduction effect and great acoustic performance.
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
The present disclosure discloses a vehicle headrest including a main body having a receiving chamber and a first sound hole, and a speaker module including a housing fixed to the main body and including a sound outlet, a speaker unit including a diaphragm, and an acoustic inverting tube. The housing further comprises a back sound hole communicated with the coupling back cavity; the acoustic inverting tube is received in the coupling back cavity. The sound wave output from the back sound hole has a first sound phase, the sound wave output from the sound outlet has a second sound phase, a difference between the first sound phase and the second sound phase is in a range of 2π/3-4π/3. The vehicle headrest in the present disclosure has better sound quality and higher acoustic privacy.
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
15.
SOUND-ABSORBING MICROSPHERE, METHOD FOR PREPARING SAME, AND SPEAKER
The disclosed is a sound-absorbing microsphere, method and a speaker. The sound-absorbing microsphere is composed of molecular sieves and adhesives. The sound-absorbing microsphere includes a spherical body and one or more hollow structures formed by depressions on a surface of the spherical body. A maximum depth or width of the hollow structure is 2% to 50% of a diameter of the spherical body. One or more hollow structures connected to the outside are fabricated on the sound-absorbing microsphere, such that the microsphere has a larger effective surface area capable of absorbing more gas molecules, thereby achieving better sound-absorbing effects. By filling the sound-absorbing microsphere into the speaker, better frequency reduction effects are achieved, and the sound performance is significantly improved. The sound-absorbing microsphere according to the present disclosure has a larger effective surface area, such that the effects of frequency reduction are bettered, and the sound performance is improved.
C01B 37/00 - Composés ayant des propriétés de tamis moléculaires mais n'ayant pas de propriétés d'échangeurs de base
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
The present invention provides a vehicle-mounted headrest, comprising a headrest body and loudspeaker modules. Each loudspeaker module comprises a housing fixed to the headrest body and a sound production device accommodated in the housing; the sound production device comprises a diaphragm used for vibrating to produce sound; a sound outlet through hole is formed in the housing; the diaphragm and the housing define a coupled rear cavity not communicated with the sound outlet through hole; a back sound outlet hole communicated with the coupled rear cavity is further provided in the housing; and the loudspeaker module further comprises an acoustic phase reversing tube accommodated in the coupled rear cavity. The loudspeaker module of the present invention is provided with the coupled rear cavity, so that the sound radiated outwards by the vehicle-mounted headrest due to passive vibration can be reduced, and the acoustic privacy effect of the vehicle-mounted headrest can be improved, the acoustic phase reversing tube can transmit the sound radiated backwards by the sound production device to the outside of the speaker module, so that the low-frequency performance of the loudspeaker module can be improved, the sound quality of the vehicle-mounted headrest is improved, and thus, the acoustic experience of the vehicle-mounted headrest is optimized.
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
Provided in the present invention is a loudspeaker, comprising a basket, a vibration system fixed to the basket, and a magnetic circuit system for driving the vibration system to vibrate to produce sound. The vibration system comprises a diaphragm and a voice coil for driving the diaphragm to vibrate. The loudspeaker comprises a spider fixed to the diaphragm, wherein the spider covers and is fixed to the side of the diaphragm away from the voice coil. The loudspeaker further comprises an electrical connector, which penetrates the diaphragm so as to electrically connect the spider and the voice coil. By means of the structure, the spider is fixed to the side of the diaphragm away from the voice coil, such that the spider does not occupy the space in the magnetic circuit system; thus, the loudspeaker has a good acoustic performance.
The present disclosure discloses a sound device including a housing and a speaker unit. The speaker unit of the sound device includes a basket, the vibration system, a magnet system, and an elastic member. The housing of the sound device includes an upper cover, a bottom cover, and a side wall having a sound outlet. A front cavity is formed between the upper cover and the speaker unit. The vibration system includes a diaphragm, a coil and a frame supporting the coil. The magnet system includes a central magnet assembly connected to the upper cover. The frame surrounds the central magnet assembly. A through hole is provided on a side of the frame away from the sound outlet. The sound device in the present disclosure has symmetrical sound quality and smaller amplitude difference.
An integrated sounding device is disclosed. The integrated sounding device includes a housing having a sound outlet, a speaker unit and a fixing member. The speaker unit includes a diaphragm having a first suspension, a second suspension and a dome. The fixing member connects an inner fixing part of the second suspension and the housing. The dome includes a first side close to the sound outlet and a second side far away from the sound outlet. The two sides are respectively arranged at opposite sides of the fixing member. The first side has a first groove, and the second side has a second groove. A filler for balancing amplitudes of the two sides is provided in the first groove. The integrated sounding device can balance the acoustic mass of the vibration system, so as to balance the vibrations of the vibration system and eliminate the sound distortions.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
A speaker is disclosed. The speaker includes a shell, a sounding unit and a fixing member. The shell has a sound outlet. The sounding unit includes a vibration member having a rubber diaphragm and a dome. The rubber diaphragm includes an inner suspension, an outer suspension and a main body connecting the two suspensions and covering the dome. The fixing member connects an inner fixing part of the inner suspension and the shell. The dome includes a first side close to the sound outlet and a second side far away from the sound outlet. The main body of the rubber diaphragm at the second side of the dome has a notched part formed by removing rubber of the rubber diaphragm for balancing amplitudes of the first side and the second side. The speaker can reduce the difference in amplitude and improve the acoustic stability without affecting the low frequency.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
The present invention relates to the field of electroacoustics, and more particularly relates to a sound-absorbing material and a preparation method therefor, and a speaker box using the sound-absorbing material. In the present invention, a sound-absorbing slurry is frozen by means of a freezing conveyor belt, and the sound-absorbing slurry is formed by means of a mold, or coated on a film. When the sound-absorbing slurry is pre-cooled by means of a first freezing zone of the conveyor belt, the temperature of the mold and the carrier film is reduced, followed by rapid freezing by means of a second freezing zone, thereby shortening the freezing time of the material. Pre-cooling the mold in advance causes freezing of the sound-absorbing slurry to be uniform, preventing the formation of thick layered ice crystals, and preventing material deformation. The freezing time of the material can be controlled by adjusting the speed of the conveyor belt. In addition, the freezing conveyor belt and the hot air above the conveyor belt form a temperature gradient, causing the sound-absorbing material to freeze from bottom to top, thus making the sound-absorbing material vertically permeable, improving air permeability, yielding better performance, increasing the preparation efficiency of the sound-absorbing material, and facilitating large-scale mass production.
The present invention provides a loudspeaker. The loudspeaker comprises a basket, a vibration system fixed to the basket, and a magnetic circuit system for driving the vibration system to vibrate; the vibration system comprises a diaphragm fixed to the basket, a voice coil for driving the diaphragm to vibrate, and a framework connected to the diaphragm and the voice coil; the framework comprises a flat portion fixed to the diaphragm, and a first extension portion extending from the inner edge of the flat portion to a direction away from the diaphragm; the first extension portion comprises a first portion which is bent and extends from the flat portion to a direction away from the diaphragm, and a second portion which is bent and extends from the first portion to a direction away from the flat portion; the voice coil is fixedly connected to the second portion; and at least part of the first extension portion further comprises a third portion which is bent and extends from the second portion to a direction away from the voice coil. The loudspeaker provided by the present invention can improve the stability of the loudspeaker and prolong the service life of the loudspeaker.
Provided in the present invention is a sound production device, comprising a first basket, a first vibration system fixed to the first basket, a second basket, a second vibration system fixed to the second basket, and a magnetic circuit system for driving the first vibration system and the second vibration system to vibrate and produce sound respectively, wherein the magnetic circuit system comprises a lower clamping plate fixed on the first basket, main magnetic steel stacked and fixed on the lower clamping plate, secondary magnetic steel stacked and fixed on the lower clamping plate, an upper clamping plate stacked and fixed on the secondary magnetic steel, a main pole core stacked and fixed on the main magnetic steel, and central secondary magnetic steel stacked and fixed on the main pole core; and the magnetic circuit system further comprises central magnetic steel stacked and fixed on the central secondary magnetic steel and a secondary pole core stacked and fixed on the central magnetic steel. The sound production device in the embodiments of the present invention can increase the thickness of the central magnetic steel, that is, improves the magnetic flux of the magnetic circuit system, enabling the magnetic flux thereof to be maximized.
The present invention provides a linear motor, comprising a housing having an accommodating cavity, a vibration unit disposed in the accommodating cavity, a driving unit, and elastic members disposed at two sides of the vibration unit. The vibration unit comprises a mass block, and a mover fixed to the mass block. The driving unit is one of a coil and a magnetic steel assembly, and the mover is the other of a coil and the magnetic steel assembly. Damping foam is connected between the mass block and the elastic members, the damping foam comprising local fusing points, and the local fusing points being fused by means of heating, so that the damping foam is bonded to the mass block and/or the elastic members. The linear motor of the present invention heats the damping foam by means of fixed-point heating, and bonding of the damping foam to the elastic members and/or the mass block is achieved by relying on the adhesion of the melted damping foam, replacing foam gluing in the related art. This saves space in a Z direction, and effectively prevents glue from overflowing towards two sides onto other parts and affecting an assembly process of the linear motor, thereby improving the vibration performance of the linear motor.
H02K 33/16 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits polarisés se déplaçant dans des directions opposées par inversion de la tension appliquée au système à une seule bobine
H02K 1/34 - Parties du circuit magnétique à mouvement alternatif, oscillant ou vibrant
The present invention provides a speaker includes a frame, a vibration system fixed with the frame, a magnetic circuit system driving the vibration system to vibrate and sound, a flexible circuit board and an electrical connector. The vibration system includes a diaphragm and a voice coil driving the diaphragm to vibrate. The flexible circuit board is fixed on a side of the diaphragm distal to the voice coil. The flexible circuit board covers and is fixed with the diaphragm. The electrical connector passes through the diaphragm to electrically connect the flexible circuit board and the voice coil. In present invention, the flexible circuit board does not occupy a space of the magnetic circuit system, and the acoustic performance of the speaker is good.
A speaker is disclosed. The speaker includes a diaphragm, a voice coil and a skeleton connecting the diaphragm and the voice coil. The skeleton includes a flat part fixed to the diaphragm and a first extension part extending from an inner edge of the flat part. The first extension part includes a first part bending from the flat part and extending in a direction far away from the diaphragm, and a second part bending from the first part and extending in a direction far away from the flat part. The voice coil is fixed to the second part. The first extension part further includes a third part bending from at least part of the second part and extending in a direction far away from the voice coil. The speaker can protect the voice coil from being scratched by the skeleton.
A speaker includes a first frame, a first vibration system, a second frame, a second vibration, and a magnetic circuit system separately driving the first vibration system and the second vibration system to vibrate and sound, the magnetic circuit system includes a lower plate fixed on the first frame, a main magnet stacked and fixed on the lower plate, a main pole plate stacked and fixed on the main magnet, a center auxiliary magnet stacked and fixed on the main pole plate, a center magnet stacked and fixed on the center auxiliary magnet, and an auxiliary pole plate stacked and fixed on the center magnet. Compared with the related art, the speaker disclosed by the present disclosure could increase the thickness of the center magnet and enhance the magnetic flux of the magnetic circuit system.
H04R 1/24 - Combinaisons structurelles de transducteurs séparés ou de parties du même transducteur et sensibles respectivement à plusieurs bandes de fréquences
The invention provides a linear motor which includes a housing with a hosing chamber, a vibrating unit, a driving unit and elastic pieces, wherein the vibrating unit, the driving unit and the elastic pieces are arranged in the housing chamber. The linear motor includes a foam damping having local melting points. According to the linear motor, the foam damping is heated at fixed points, the bonding between the foam damping and the elastic piece is realized by means of the self viscosity of the foam damping after the foam damping is melted. The foam glue in the related technology is replaced, the Z-direction space is saved. Glue overflows to other parts on two sides to influence the assembly procedure of the linear motor can be effectively prevented, and therefore the vibration performance of the linear motor is improved.
H02K 33/18 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des systèmes de bobines se déplaçant, du fait de mises sous tension intermittentes ou inversées, par interaction avec un système de champ magnétique fixe, p. ex. des aimants permanents
H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
H02K 33/02 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p. ex. par des ressorts
The present invention provides a sound production device, comprising a housing provided with an accommodating cavity and a sound production unit accommodated in the accommodating cavity. The sound production unit comprises a basket, a vibration system fixed to the basket, a magnetic circuit system for driving the vibration system to vibrate and produce sound, and an elastic connector supporting the vibration system. The housing comprises an upper cover body and a lower cover body matching the upper cover body; the housing comprises a side wall provided with a sound outlet hole; a front cavity is formed between the upper cover body and the sound production unit; the vibration system comprises a vibrating diaphragm, a voice coil for driving the vibrating diaphragm to vibrate and produce sound, and a frame for supporting the vibrating diaphragm and the voice coil; the magnetic circuit system comprises a central magnetic steel assembly connected to the upper cover body; the frame is provided around the central magnetic steel assembly; an opening is provided on the side of the frame distant from the sound outlet hole. In the structure, partial opening design on the side of the frame distant from the sound outlet hole reduces the weight of the frame, and balances the asymmetry of the sound quality.
The present invention provides an integrated sound production device, comprising a housing having an accommodating cavity, and a sound production unit. The sound production unit divides the accommodating cavity into a front cavity and a rear cavity. The housing comprises an upper cover and a lower cover. A sound outlet is formed on the upper cover. The sound production unit comprises a frame, a vibration system, and a magnetic circuit system. The magnetic circuit system comprises a lower yoke plate, a main magnetic assembly, and an auxiliary magnetic assembly. The vibration system comprises a diaphragm and a voice coil. The diaphragm comprises a first surround, a second surround, and a dome connecting the two surrounds. The second surround comprises an inner fixed portion fixed to the main magnetic assembly. The inner fixed portion and the upper cover are connected by means of an adhesive member. The dome comprises a first side edge and a second side edge which are close to and distant from the sound outlet respectively. A first groove and a second groove are respectively formed on the first side edge and the second side edge. A filler for balancing the vibration amplitudes of the first side edge and the second side edge is provided in the first groove. According to the present invention, the filler is provided in the first groove to achieve mass balance between a sound outlet side and a non-sound-outlet side in the front cavity, reducing the vibration amplitude difference, improving the vibration performance.
The present invention provides a loudspeaker, comprising a housing having an accommodating space, and a sound production unit that divides the accommodating space into a front cavity and a rear cavity. The housing is provided with a sound outlet used for placing the front cavity in communication with the outside, and the sound production unit comprises a vibration system and a magnetic circuit system. The vibration system comprises a diaphragm, the magnetic circuit system comprises a central magnetic circuit and a side magnetic circuit, the diaphragm comprises a rubber membrane and a spherical top portion fixed to the rubber membrane, and the rubber membrane comprises an inner folding ring, an outer folding ring, and a rubber membrane main body connected to the inner folding ring and the outer folding ring and covering the spherical top portion. The inner folding ring comprises an inner fixed portion fixed to the central magnetic circuit, and the loudspeaker further comprises a bonding member bonded to the inner fixed portion and the housing. The spherical top portion comprises a first side edge close to the sound outlet and a second side edge distant from the sound outlet, and the rubber membrane main body at the second side edge is provided with a notch portion formed by removing at least some rubber, and used for balancing the amplitudes of the first side edge and the second side edge. The loudspeaker provided by the present invention can reduce an amplitude discrepancy, improving the acoustic stability of the product.
Disclosed is a sound-absorbing material, a method, and a speaker, a sound-absorbing slurry is frozen by using a freezing conveyor belt, and the sound-absorbing slurry is then molded by a mold or coated onto a film. During pre-cooling of the sound-absorbing slurry in a first freezing zone of the conveyor belt, temperatures of the mold and a carrier film are reduced, followed by rapid freezing in a second freezing zone. Pre-cooling the mold in advance ensures uniform freezing of the sound-absorbing slurry. The freezing time of the material may be controlled by adjusting the speed of the conveyor belt. A temperature gradient is formed between the freezing conveyor belt and hot air thereabove. This enhances the top-bottom permeability of the sound-absorbing material, and thus improves the performance of the sound-absorbing material. The preparation efficiency of sound-absorbing material is increased, thereby facilitating scalable mass production is facilitated.
F26B 5/06 - Procédés de séchage d'un matériau solide ou d'objets n'impliquant pas l'utilisation de chaleur par évaporation ou sublimation de l'humidité sous une pression réduite, p. ex. sous vide le procédé impliquant la congélation
A loudspeaker unit and a terminal device are disclosed. The loudspeaker unit comprises: a loudspeaker main body, which is internally provided with a receiving cavity; a transducer, which is received in the receiving cavity and divides same along a first direction into a front sound cavity and a rear sound cavity, wherein a loudspeaker hole is formed in the loudspeaker main body, and the loudspeaker hole is communicated with the front sound cavity; a throat, which is internally provided with a throat cavity, wherein a first opening and a second opening are formed in the throat, the first opening and the second opening are sequentially distributed along a second direction, the first opening is arranged corresponding to the loudspeaker hole, the throat cavity is communicated with the front sound cavity via the first opening and the loudspeaker hole, and the throat cavity is communicated with the environment outside of the throat via the second opening. Compared with the prior art, the present invention allows the space occupied by the loudspeaker unit to be compressed to a certain extent. The loudspeaker unit is quite suitable for terminal devices that have a certain amount of internal space but that are limited in height.
Disclosed is a loudspeaker and a terminal device. The loudspeaker includes: a loudspeaker body having a containing cavity; a transducer accommodated in the containing cavity separated by the transducer into a front and a rear cavity along the first direction, wherein a sound hole is provided on the loudspeaker body, and the sound hole is in communication with the front cavity; and a throat having a throat cavity, and a first and a second mouth arranged sequentially along the second direction. The first mouth corresponds to the sound hole, the throat cavity is in communication with the front cavity via the first mouth and the sound hole, and the throat cavity is in communication with the outside via the throat and the second mouth. The present disclosure can compress the space occupied by loudspeaker, which is suitable for a terminal device with certain internal space and a limited height.
This invention provides a vibration motor. The vibration motor includes a housing with a containment space, a vibration component, and a stator component. The vibration component includes a mass block, a magnet assembly fixed to the mass block, and an elastic component supporting the mass block in the containment space. The magnet assembly includes a magnet fixed to the mass block, which has a magnetized magnetic circuit with a Halbach array structure. By designing the magnetized magnetic circuit in a Halbach array manner, the complex distribution of magnetic pole enhances the magnetic field performance of the magnet assembly and significantly increases the driving force of the vibration motor, providing users with strong vibration feedback and enhancing user experience.
The embodiments of the present application relate to the technical field of vibration electric motors. Disclosed are a linear vibration electric motor (100) and an electronic device (200). In the linear vibration electric motor (100) of the present application, in a receiving space (11) defined by a housing (10), a supporting frame (21) of a vibrator (20) is provided with a driven member (22), and a driving member (30) is provided opposite the driven member (22) and configured to drive the driven member (22) to move the supporting frame (21) along a straight line. A plurality of accommodating grooves (211) are formed on the supporting frame (21), at least one supporting component (40) is provided in each accommodating groove (211), part of the supporting component (40) is located outside the accommodating groove (211), the supporting component (40) is pressed against the housing (10) by the supporting frame (21), and the supporting component (40) is configured to support the supporting frame (21). When the driving member (30) drives the supporting frame (21) to move relative to the housing (10), the supporting component (40) rolls relative to the housing (10) and the supporting frame (21), so that the supporting frame (21) can stably move, and the accommodating grooves (211) are located inside the receiving space (11) and will not be deformed due to impact. The electronic device (200) of the present application comprises the linear vibration electric motor (100) and a device body (210) provided with the linear vibration electric motor (100).
H02K 33/02 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p. ex. par des ressorts
H02K 1/34 - Parties du circuit magnétique à mouvement alternatif, oscillant ou vibrant
H02K 7/08 - Association structurelle avec des paliers
The present application relates to the technical field of motors, and provides a vibration motor. The vibration motor of the present application comprises a housing that is provided with an accommodating space, a vibration assembly that is accommodated in the accommodating space, and a stator assembly. The vibration assembly comprises a mass block spaced apart from the housing, a magnetic steel assembly fixed to the mass block, and an elastic assembly supporting the mass block in the accommodating space. The magnetic steel assembly comprises a magnetic steel fixed to the mass block, and the magnetic steel is provided with a magnetized magnetic circuit of a Halbach array structure. The magnetized magnetic circuit is designed by using a Halbach array such that the polarity distribution of the magnetic circuit is complex, effectively improving the magnetic field performance of the magnetic steel assembly, remarkably improving the driving force of the vibration motor so that the vibration motor can provide a user with strong vibration feedback, and improving the user experience.
H02K 33/02 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p. ex. par des ressorts
The present application relates to the technical field of electroacoustic conversion, and provides a loudspeaker, which comprises a basket, a vibration system fixed to the basket, and a magnetic circuit system provided with a magnetic gap. The vibration system comprises a diaphragm assembly fixed onto the basket and a voice coil assembly used for driving the diaphragm assembly to vibrate and produce sound. The diaphragm assembly comprises a dome located in the middle, a surround that is around the dome and fixed to the basket, and a connecting wall formed by extending from the dome to the voice coil assembly. The connecting wall is integrally formed. The connecting wall comprises a connecting part used for connecting the dome and the surround, and a first suspension part and a second suspension part that are arranged on the side away from the dome and spaced apart from one another. The vibration system further comprises a first damper assembly and a second damper assembly that are fixed to the basket and spaced apart from one another. The end of the first damper assembly away from the basket is connected to the first suspension part, and the end of the second damper assembly away from the basket is connected to the second suspension part. Thus, the space utilization can be improved, ultra-thinness can be achieved, and the vibration system can have good balance performance.
A speaker includes a frame, a magnetic circuit system with a magnetic gap, and a vibration system, the vibration system includes a diaphragm assembly, a voice coil assembly, a first elastic wave assembly fixed, and a second elastic wave assembly, the diaphragm assembly includes a dome, a suspension, and a connecting wall extending from the dome to the voice coil assembly, the connecting wall includes a connecting portion connected with the dome the suspension, and a first suspension portion and a second suspension portion located at a side away from the dome, one end of the first elastic wave assembly away from the frame is connected with the first suspension portion, one end of the second elastic wave assembly away from the frame is connected with the second suspension portion. Compared with the related art, the speaker disclosed by the present disclosure could improve space utilization.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
Provided are a linear vibration motor and an electronic device. In a receiving space enclosed by a case, a follower is at a support frame of a vibrator, and a driver is opposite to the follower for driving the follower to drive the support frame to move along a straight line. The support frame is provided with receiving grooves. Each receiving groove is provided with at least one support member, part of which is located outside the receiving groove. The support member is pressed against the case by the support frame and configured to support the support frame. When the driver drives the support frame to move relative to the case, the support member rolls relative to the case and the support frame, the support frame stably moves, and the receiving groove is located in the receiving space and does not deform due to an influence of any impact.
H02K 33/18 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des systèmes de bobines se déplaçant, du fait de mises sous tension intermittentes ou inversées, par interaction avec un système de champ magnétique fixe, p. ex. des aimants permanents
Disclosed is a directional microphone module, comprising: a sound-transmitting mesh fabric, a housing covered with the sound-transmitting mesh fabric, a circuit board fixed to the housing, and a MEMS microphone fixed to the circuit board. The housing comprises a top wall and side walls; the circuit board and the top wall are spaced apart to form a first cavity; the circuit board and the sound-transmitting mesh fabric are spaced apart to form a second cavity; the side walls comprise two first side walls arranged opposite to each other and two second side walls arranged opposite to each other; the first cavity and the second cavity are communicated only at one of the two second side walls; the MEMS microphone is arranged in the first cavity and located at the other of the two second side walls; the MEMS microphone is provided with a first sound hole facing the top wall and a second sound hole facing the circuit board; the first sound hole is communicated with the first cavity; the circuit board is provided with a through hole; and the second sound hole is communicated with the second cavity by means of the through hole. The directional microphone module of the present disclosure has stable performance and simple structure, and can improve production efficiency and reduce labor costs.
H04R 1/04 - Association constructive d'un microphone avec son circuit électrique
H04R 1/38 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons dans lesquelles les ondes sonores attaquent les deux côtés d'une membrane et comprenant des moyens de décalage de phase acoustique, p. ex. microphone à gradient de pression
The present invention provides a smart wearable device including a glass frame and a pair of temples. Each temple includes a shelf having a receiving room, a speaker unit and a microphone unit accommodated in the receiving room. The speaker unit includes a first sounding surface and a second sounding surface. The shelf includes an upper wall, a lower wall, and an outer wall. The outer wall provides with an auxiliary sound hole. The auxiliary sound hole is communicated with the second sounding surface. The outer wall provides with a microphone sound hole. The microphone sound hole is communicated with the microphone unit. An ultrasonic signal emitted from auxiliary sound hole reaches the microphone unit from the microphone sound hole after reflection. The smart wearable device of the present invention is suitable for gesture recognition or mode adjustment, and has more diversified functions.
The present invention provides a surface acoustic wave filter module packaging structure and packaging method thereof. Packaging structure includes a substrate, a surface acoustic wave filter chip, a non-filter chip, a dry film layer, and a plastic sealing layer. Filter chip is fixed to substrate by first convex structures, a cavity is formed between filter chip and substrate. Non-filter chip is fixed to substrate by second convex structures. Dry film layer includes a fracture area surrounding non-filter chip, plastic sealing layer is filled between substrate and non-filter chip through fracture area. The packaging structure and method thereof of the present invention can ensure that a cavity can be formed between the bottom of surface acoustic wave filter chip and substrate, convex structures are not easily broken, avoiding the use of injection molding processes based on wafer level packaging filters, reducing costs and damage to chips during reliability testing.
H03H 9/64 - Filtres utilisant des ondes acoustiques de surface
H03H 3/08 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux utilisant des ondes acoustiques de surface
The present invention provides a surface acoustic wave filter module packaging structure and packaging method thereof. The packaging structure includes a substrate, a surface acoustic wave filter chip, a non-filter chip, a dry film layer, and a plastic sealing layer. The surface acoustic wave filter chip is fixed to the substrate by first convex structures, a first cavity is formed between the surface acoustic wave filter chip and the substrate. The non-filter chip is fixed to the substrate by second convex structures, a second cavity is formed between the non-filter chip and the substrate. The packaging structure and method thereof of the present invention can ensure that a cavity can be formed between the bottom of all chips and the substrate, avoiding the use of injection molding processes based on wafer level packaging filters, reducing costs and damage to chips during reliability testing.
H03H 9/64 - Filtres utilisant des ondes acoustiques de surface
H03H 3/08 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux utilisant des ondes acoustiques de surface
The present utility model provides a smart wearable device, comprising a glasses frame and glasses temples extending backwards from two sides of the glasses frame. Each glasses temple comprises a frame having an accommodating space, and a loudspeaker unit and a microphone unit which are accommodated in the accommodating space; the loudspeaker unit comprises a first sound production surface and a second sound production surface facing away from the first sound production surface; the frame comprises an upper wall surface, a lower wall surface and an outer wall surface connecting the upper wall surface and the lower wall surface; the lower wall surface is provided with a primary sound outlet hole, and the outer wall surface is provided with a secondary sound outlet hole; the primary sound outlet hole is communicated with the first sound production surface of the loudspeaker unit, and the secondary sound outlet hole is communicated with the second sound production surface of the loudspeaker unit; a microphone sound hole is formed at a position on the outer wall surface of the frame close to the secondary sound outlet hole; the microphone sound hole is communicated with the microphone unit; and an ultrasonic signal emitted from the secondary sound outlet hole reaches the microphone unit by means of the microphone sound hole. The smart wearable device of the present utility model is suitable for gesture recognition or mode adjustment, and has diverse functions.
Provided in the present invention are a surface acoustic wave filter module packaging structure and a packaging method therefor. The surface acoustic wave filter module packaging structure comprises a substrate, at least one surface acoustic wave filter chip disposed on the substrate, at least one non-filter chip disposed on the substrate, a dry film layer which covers the cover surface acoustic wave filter chip and the non-filter chip, and a plastic encapsulation layer which covers the dry film layer, wherein the surface of the surface acoustic wave filter chip is fixed to the substrate by means of a first bump structure, and a first cavity is formed between the surface acoustic wave filter chip and the substrate; and the surface of the non-filter chip is fixed to the substrate by means of a second bump structure, and a second cavity is formed between the non-filter chip and the substrate. The surface acoustic wave filter module packaging structure and method of the present invention ensure that cavities can be formed between the bottoms of all the chips and the substrate, and avoid using an injection molding process for a filter based on wafer-level packaging, thereby reducing costs and the damage to the chips in the reliability stage.
The present application provides a waterproof microphone apparatus. The waterproof microphone apparatus is installed on a vehicle body, and the vehicle body comprises a framework provided with a circular opening. The waterproof microphone apparatus comprises a shell, a circuit board provided in the shell, a microphone installed on the circuit board, a cover plate connected to the shell and the framework, a first waterproof film sealed on the cover plate, and a mask fixed to the cover plate; the inner wall of the framework where the opening is formed gradually inwardly inclines from the outer surface to the inner surface of the framework; the mask comprises a first wall facing the outside of the vehicle body, a second wall opposite to the first wall, and an outer sidewall connected to the first wall and the second wall; the outer sidewall gradually inwardly inclines from the first wall to the second wall, so that an inclined annular sound inlet channel is formed between the inner wall of the opening of the framework and the outer sidewall of the mask. The waterproof microphone apparatus of the present application can achieve a good waterproof effect, and have a more stable structure and an attractive appearance.
The present invention provides a waterproof microphone device installed on a vehicle body. The vehicle body includes a frame having a circular opening. The waterproof microphone device includes an outer housing, a circuit board, a microphone, a cover, a first waterproof membrane, and a casing. An inner wall of the frame forming the opening gradually slopes inwardly from an outer surface to an inner surface of the frame. The casing includes a first wall, a second wall, and an outer sidewall. The outer sidewall gradually slopes inwardly from the first wall to the second wall to form an inclined annular sound channel between the inner wall of the frame enclosing the opening and the outer sidewall of the casing. In present invention, the waterproof microphone device can achieve better waterproof effect, and has a more stable structure with a beautiful appearance.
A directional microphone module is disclosed. The directional microphone module includes a sound-permeable mesh, a housing having a top wall and a side wall, a circuit board, and a MEMS microphone fixed to the circuit board. The circuit board and the top wall are spaced for forming a first cavity. The circuit board and the sound-permeable mesh are spaced for forming a second cavity. The two cavities are only communicated at a side, and the MEMS microphone locates at an opposite side. The MEMS microphone includes two acoustic holes, the first one faces the top wall and communicates with the first cavity, the second one faces the circuit board and communicates with the second cavity through a through hole of the circuit board. The directional microphone module can always work stably and has a simple structure, and also can improve the production efficiency and reduce the labor cost.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
A bone conduction microphone is disclosed. The bone conduction microphone includes a circuit board, a housing engaged with the circuit board, a metal cover engaged with the circuit board for forming a first cavity, a vibration assembly, and a MEMS chip disposed in the first cavity. The metal cover includes a top wall and a side wall. The vibration assembly engages with the top wall for forming a second cavity and includes a vibration member and a spacer member. A first conduction cavity is formed by the housing, the vibration assembly, the metal cover and the circuit board. A vibration of the vibration member is transmitted to one side of the MEMS chip through the first conduction cavity, an acoustic channel of the circuit board and a back cavity of the MEMS chip. The bone conduction microphone reduces the electromagnetic interference and improves the SNR.
A bone conduction microphone, comprising: a circuit board, which has an acoustic channel; a housing, which is connected to the circuit board in a covering manner to form an accommodating space; a metal cover, which is arranged in the accommodating space and is connected to the circuit board in a covering manner to form a first cavity, wherein the metal cover comprises a top wall spaced apart from the circuit board and a side wall located between the top wall and the circuit board; a vibration assembly, which is arranged in the accommodating space and is connected to the top wall in a covering manner to form a second cavity, wherein the vibration assembly comprises a vibration member spaced apart from the top wall and a spacer located between the vibration member and the top wall, and the housing, the vibration assembly, the metal cover and the circuit board enclose to form a first conduction cavity; and an MEMS chip, which is arranged in the first cavity and is fixed to the circuit board, wherein the MEMS chip has a back cavity, the acoustic channel communicates the first conduction cavity with the back cavity, and vibration of the vibration member is conducted to one side of the MEMS chip through the first conduction cavity, the acoustic channel and the back cavity. The bone conduction microphone can reduce the impact of electromagnetic interference and improve the signal-to-noise ratio.
Provided in the present invention are a surface acoustic wave filter module packaging structure, and a packaging method for the structure. The surface acoustic wave filter module packaging structure comprises a substrate, a surface acoustic wave filter chip and a non-filter chip which are disposed on the substrate, a dry film layer covering the surface acoustic wave filter chip and the non-filter chip, and a plastic packaging layer covering the dry film layer, wherein the surface acoustic wave filter chip is fixed to the substrate by means of first bump structures; a cavity is formed between the surface acoustic wave filter chip and the substrate; the non-filter chip is fixed to the substrate by means of second bump structures; the dry film layer has a fracture area surrounding the non-filter chip; and the plastic packaging layer is filled between the substrate and the non-filter chip via the fracture area. The surface acoustic wave filter module packaging structure and the method of the present invention can ensure that a cavity can be formed between the bottom of the surface acoustic wave filter chip and the substrate, and bumps do not break easily; moreover, an injection molding process of a filter based on wafer-level packaging is avoided, thereby reducing the cost and damage to the chip in a reliability stage.
The present application provides an electric motor, belonging to the technical field of electric motors, including a plurality of magnetic steels arranged in a circumferential direction around a rotating shaft. two adjacent magnetic steels have opposite magnetic polarities at one end proximate to the rotating shaft, and two adjacent magnetic steels have opposite magnetic polarities at the other end; the magnetic steels are sintered magnetic steels. In this way, the plurality of sintered magnetic steels are separately molded and then spliced, so the magnetic circuit performance can be enhanced while simplifying the assembly process to meet the assembly requirements of different-sized motors. This approach will improve stability and reliability, thereby enhancing the driving performance of the motor. As a result, it achieves the technical effect of improving the driving performance of the motor.
H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p. ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
The present application provides a motor, including a plurality of first limit grooves spaced apart on a plastic member, and a second limit groove arranged between two adjacent first limit grooves. A plurality of first claw fingers in the first claw pole are connected to the first claw disk, which are embedded in the corresponding first limit grooves. A plurality of second claw fingers in the second claw pole are connected to the second claw disk, which are embedded in the corresponding second limit grooves, so that the first and second claw poles can be integrally injected, the strength of the claw poles is effectively improved and the assembly precision of the stator is ensured. Moreover, the size of the coil can be effectively increased, thereby achieving the technical effect of improving the assembly precision of the electric motor and increasing the torque of the product.
Provided in the present application are an adjustment mechanism and a lens module. The adjustment mechanism of the present application comprises an anti-shake assembly, wherein the anti-shake assembly comprises an anti-shake circuit board and a flexible sheet fitted and connected to the anti-shake circuit board; the flexible sheet comprises a first body and a first bent edge arranged in the circumferential direction of the first body, the first bent edge being perpendicular to the plane of the first body; and the anti-shake circuit board comprises a second body, a second bent edge arranged in the circumferential direction of the second body, and an electrical connecting portion connected to one side of the second bent edge. The adjustment mechanism of the present application has lower production cost and higher control precision; by applying the adjustment mechanism to the lens module, the overall production cost of the lens module is reduced, and higher control and adjustment precision of the lens module is ensured.
H04N 23/68 - Commande des caméras ou des modules de caméras pour une prise de vue stable de la scène, p. ex. en compensant les vibrations du boîtier de l'appareil photo
H04N 23/54 - Montage de tubes analyseurs, de capteurs d'images électroniques, de bobines de déviation ou de focalisation
The present application provides an anti-shake mechanism and a camera module. The anti-shake mechanism comprises an anti-shake circuit board and a flexible piece arranged on the outer side of the anti-shake circuit board, the anti-shake circuit board partially overlaps the flexible piece, and the flexible piece is of an asymmetric structure; the flexible piece comprises a first main body and a first bent edge; the anti-shake circuit board comprises a second main body, a second bent edge, and an electrical connection portion; the second bent edge is arranged corresponding to part of the first bent edge, a stiffness compensation structure is provided on the region of the first bent edge not connected to the second bent edge, and the connection regions of the first bent edge and the second bent edge are at least partially in contact with each other. In the anti-shake mechanism of the present application, the structures of the anti-shake circuit board and the flexible piece are optimized, improving the overall structural stability of the anti-shake mechanism, reducing production costs, and improving optical anti-shake performance.
H04N 23/68 - Commande des caméras ou des modules de caméras pour une prise de vue stable de la scène, p. ex. en compensant les vibrations du boîtier de l'appareil photo
The present application relates to the technical field of motors, and provides a motor, comprising a plurality of magnetic steels circumferentially arranged around a rotating shaft, wherein the magnetic polarities of the ends of every two adjacent magnetic steels close to the rotating shaft are opposite, and the magnetic polarities of the other ends of the two adjacent magnetic steels are opposite; the magnetic steels are sintered magnetic steels. In this way, forming the plurality of sintered magnetic steels separately and then assembling the sintered magnetic steels together can improve the performance of a magnetic circuit, simplify the assembly process, and satisfy the assembly requirements on motors of different sizes, thereby enhancing stability and reliability, and improving the driving performance of motors. Therefore, the technical effect of improving the driving performance of motors is achieved.
The present application relates to the technical field of motors, and provides a motor, comprising: a plurality of spaced first mounting slots are formed in a plastic part, a second mounting slot is formed between every two adjacent first mounting slots, a plurality of first claw fingers in a first claw pole are connected to a first claw disc, the first claw fingers are embedded into the corresponding first mounting slots, a plurality of second claw fingers in a second claw pole are connected to a second claw disc, and the second claw fingers are embedded into the corresponding second mounting slots. In this way, the first claw pole and the second claw pole can be integrally injection-molded, thereby effectively improving the strength of the claw poles, ensuring the stator assembly precision, effectively increasing the size of a coil when the coil is separately wound around the first claw pole and the second claw pole, and increasing the product torque. Therefore, the technical effects of improving the motor assembly precision and improving the product torque are achieved.
The present application provides an anti-shake mechanism and a camera module, and the anti-shake mechanism includes an anti-shake circuit board and a flexible sheet arranged on the outside of the anti-shake circuit board. The anti-shake circuit board and the flexible sheet are partially overlapped, and the flexible sheet has an asymmetric structure. The flexible sheet includes a first main body and a first folded edge, and the anti-shake circuit board includes a second main body, a second folded edge, and an electrical connection portion. The second folded edge is provided in correspondence with a part of the first folded edge, a stiffness compensation structure is provided, and a connecting region between the first folded edge and the second folded edge is at least partially adherent. The anti-shake mechanism optimizes the structures, improves the overall structural stability, reduces the production cost, and improves the optical anti-shake performance.
H04N 23/68 - Commande des caméras ou des modules de caméras pour une prise de vue stable de la scène, p. ex. en compensant les vibrations du boîtier de l'appareil photo
Disclosed in the present invention are an MEMS element and a preparation method therefor. The MEMS element comprises: a substrate; a diaphragm, which is connected to the substrate, wherein the diaphragm comprises an upper membrane and a lower membrane, which are arranged opposite each other; a counter electrode; and a plurality of supporting members, which are arranged between the upper membrane and the lower membrane and are spaced apart from the counter electrode, wherein two opposite ends of each supporting member are connected to the upper membrane and the lower membrane respectively. The diaphragm comprises a first area and a second area, the second area being located in the outer circumferential direction of the first area, wherein in the first area, a first electrode covers the surface of the side of the upper membrane away from the lower membrane, and a second electrode covers the surface of the side of the lower membrane away from the upper membrane; and in the second area, reinforcing layers respectively cover the surface of the side of the upper membrane away from the lower diaphragm and the surface of the side of the lower membrane away from the upper membrane. Compared with the prior art, in the present invention, the reinforcing layers are arranged in the second area of the diaphragm, such that the mechanical strength and robustness of the diaphragm can be enhanced by means of the reinforcing layers, thereby improving the preparation process yield.
The present application provides an adjustment mechanism and a lens module. The adjustment mechanism includes an anti-shake assembly. The anti-shake assembly includes an anti-shake circuit board and a flexible sheet cooperatively connected to the anti-shake circuit board, and the flexible sheet includes a first main body and a first folded edge arranged circumferentially around the first main body. The first folded edge is arranged perpendicularly to a plane of the first main body. The anti-shake circuit board includes a second main body, and a second folded edge arranged circumferentially around the second main body. The production cost of the adjustment mechanism of the present application is lower and has better control accuracy, and the application of the adjustment mechanism to the lens module reduces the overall production cost of the lens module and ensures that the lens module has better control and adjustment accuracy.
G02B 27/64 - Systèmes pour donner des images utilisant des éléments optiques pour la stabilisation latérale et angulaire de l'image
G03B 5/00 - Réglage du système optique relatif à l'image ou à la surface du sujet, autre que pour la mise au point présentant un intérêt général pour les appareils photographiques, les appareils de projection ou les tireuses
MEMS device and manufacturing method therefor. The device includes a base; a diaphragm including an upper part and a lower part, a receiving space being formed therebetween; a counter electrode located in the receiving space; and support members located between the two parts, spaced apart from one another and from the counter electrode, two ends of each support member being connected to the two parts, respectively. The diaphragm includes a first zone and a second zone. In the first zone, a surface of the upper part is covered with a first electrode, a surface of the lower part is covered with a second electrode opposite to the first electrode. In the second zone, a surface of the upper part and a surface of the lower part are each covered with a reinforcement layer. The reinforcement layer in the second zone enhances the mechanical strength and robustness of the diaphragm.
A rubber diaphragm, and a sound-producing device and the use thereof. The rubber diaphragm contains 0.5-50% by mass of a distortion improver. The distortion improver is a random linear polymer in which two or more monomer components are randomly arranged on the main chain structure thereof and all the monomer components are coordinated with each other to regulate the distortion performance. The terminal group, and/or the side group and the side chain of the distortion improver contain 0.01-20% by mass of special chemical reaction cross-linking points. The number-average molecular weight of the distortion improver is 500-1,200,000. The distortion improver or the main chain structure thereof is prepared by means of a one-step method. The rubber diaphragm comprises the distortion improver, which is a linear high-molecular polymer in which all the components are randomly arranged. A sound-producing device in which the rubber diaphragm is used has significantly reduced low-frequency distortion (THD) while good frequency response characteristics thereof are maintained. The distortion improver is simple to prepare, has a low cost, and is widely applicable.
The present disclosure discloses a sound absorption material block having a gradient pore diameter from inside to outside, including: an outer portion having a first pore diameter; and an inner portion encapsulated by the outer portion, having a second pore diameter; the first pore diameter is in a range of 20-200 μm, the second pore diameter is in a range of 1-20 μm; the sound absorption material block has a thickness in a range of 0.5-5 mm. The sound absorption material block in the present disclosure has lower damping property and higher intensity.
The embodiments of the present invention provide a microphone amplifier circuit, a microphone circuit, and an electronic device. The microphone amplifier circuit comprises: a voltage regulator having an output end, a first constant-current source having an input end connected to the output end of the voltage regulator, a first transistor, a second transistor, a first driving unit, and a second driving unit. A gate electrode of the first transistor serves as an input end of the microphone amplifier circuit, and a source electrode of the first transistor serves as an output end of the microphone amplifier circuit. A source electrode of the second transistor is connected to an output end of the first constant-current source, a gate electrode of the second transistor is connected to the source electrode of the first transistor, and a drain electrode of the second transistor is grounded. The first driving unit is used for increasing the power supply rejection ratio of the microphone amplifier circuit, and the second driving unit is used for improving the sound pressure overload point of the microphone amplifier circuit. The embodiments of the present invention at least facilitate an improvement to the electrical performance of microphone circuits.
The embodiments of the present invention provide a microphone amplifier circuit, a microphone circuit, and an electronic device. The microphone amplifier circuit comprises a first transistor, a first constant-current source, and a source follower. A gate electrode of the first transistor serves as an input end of the microphone amplifier circuit, a source electrode of the first transistor serves as an output end of the microphone amplifier circuit, and a drain electrode of the first transistor is grounded. An input end of the first constant-current source is connected to a power supply, and an output end of the first constant-current source is connected to the source electrode of the first transistor. The source follower at least comprises a second transistor. A drain electrode of the second transistor is connected to the power supply, a gate electrode of the second transistor is connected to the source electrode of the first transistor, and a source electrode of the second transistor is connected to the drain electrode of the first transistor. The present invention at least facilitates an improvement to the THD performance of microphone amplifier circuits.
An electromagnetic microphone, comprising a circuit board, a housing which is in covered connection with the circuit board so as to enclose an accommodating space, and a sound sensor, wherein a sound hole in communication with the accommodating space penetrates one of the circuit board and the housing, and the sound sensor comprises: a substrate, which is provided in the accommodating space and is fixed to the circuit board, the substrate being provided with a cavity; a vibration member, which is fixedly arranged on the side of the substrate away from the circuit board and covers the cavity, external sound waves acting on the vibration member via the sound hole, the vibration member comprising a diaphragm fixed to the substrate and a magnetic element having a magnetic field, and the magnetic element being fixed to the diaphragm; and a coil, and when the vibration member vibrates, the coil cuts the magnetic field of the magnetic element to generate an electrical signal. Compared with a traditional capacitive microphone, the electromagnetic microphone of the present invention does not have a back plate structure, such that not only can damping and noise be greatly reduced, but the problem of damage to a membrane due to same being suctioned can also be avoided, thereby improving the reliability of the electromagnetic microphone.
A loudspeaker, comprising a basket, a vibration system that is fixed on the basket, and a magnetic circuit system that drives the vibration system to vibrate. The basket surrounds the magnetic circuit system, and the basket and the magnetic circuit system are arranged at an interval in a vibration direction perpendicular to the vibration system. The loudspeaker further comprises a damper that surrounds the magnetic circuit system. The damper connects the magnetic circuit system onto the basket to suspend the magnetic circuit system. The damper comprises a damping elastic member, and the damping elastic member is provided with a preset rigidity and a preset damping that enable the magnetic circuit system to move relative to the basket. The present invention further provides a loudspeaker box. In the loudspeaker and the loudspeaker box provided by the present invention, by means of the damping elastic member provided with a preset rigidity and a preset damping, the magnetic circuit system can move relative to the basket, and the damping elastic member is used to suppress the movement of the magnetic circuit system, thus achieving the purpose of shock absorption.
A rubber sound film, and a sound production device and a use thereof. The rubber sound film contains 0.2-60% by mass of a distortion improver. The distortion improver is a block polymer, and an end group or at least one block component of the distortion improver comprises 0.02-25% by mass of a special chemical crosslinking site at which a chemical reaction can occur. The number average molecular weight of each block of the distortion improver is from 300 to 100,000. The distortion improver can be accurately prepared by means of living polymerization or the main body structure can be accurately prepared by means of living polymerization. The rubber sound film contains the distortion improver, and the structure and the content of the special chemical crosslinking site of the distortion improver are accurately controllable, so that the position, height, and width of a damping peak thereof are accurately controllable, and the damping characteristics of the obtained rubber sound film are accurately controllable. When the rubber sound film is applied to the sound production device, the distortion in a low-frequency band can be accurately reduced while good frequency response characteristics are maintained, and the rubber sound film has high controllability, stable performance, and extremely board application range.
C08L 53/00 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères
C08F 293/00 - Composés macromoléculaires obtenus par polymérisation sur une macromolécule contenant des groupes capables d'amorcer la formation de nouvelles chaînes polymères rattachées exclusivement à une ou aux deux extrémités de la macromolécule de départ
The present invention provides a sound-absorbing block material, a preparation method therefor and a use thereof. The sound-absorbing block material has gradient pores having diameters that gradually increase from the inside to a surface layer. The thickness of the sound-absorbing block material is 0.5-5 mm. The sound-absorbing block material of the present invention has gradient pores, and the pore diameters gradually increase from the inside to the surface layer of the block material. The pores can cause the sound-absorbing material inside the sound-absorbing block material to be exposed to the air to function, and the gradient changes between the pores can reduce air vibration damping. The raw materials of the sound-absorbing material have high bonding strength therebetween, which reduces powder dropping and ensures the stability of the pore structure. The surface layer of the sound-absorbing block material has large pores having diameters of 20-200 μm. When the sound-absorbing block material is attached to a sound-emitting rear cavity, the attachment surface can also be exposed to the air to function, thereby improving the performance of the block material when used in rear cavities of loudspeakers with different morphologies.
The present disclosure discloses a microphone module including at least two MEMS microphones, a printed circuit board, and a shell, each of the MEMS microphones is provided a sound inlet hole, a plurality of first sound pickup holes are provided on the printed circuit board, a plurality of second sound pickup holes are provided on the shell, each of the first sound pickup holes is communicating with the corresponding sound inlet hole and the corresponding second sound pickup hole, a diameter dimension of each of the first sound pickup holes is D1 mm, a distance between a center axes of adjacent sound inlet holes is greater than or equal to 25D1 mm and less than or equal to 43D1 mm. Compared with the related art, the microphone module disclosed by the present disclosure could have a better sound recognition effect.
A speaker comprising a basket frame, a vibration system, and a magnetic circuit system. The basket frame is arranged around the magnetic circuit system, and the basket frame and the magnetic circuit system are spaced apart. The speaker further comprises a buffer arranged around the magnetic circuit system, which connects the magnetic circuit system to the basket frame, and comprises a damping elastic member. The damping elastic member has a predetermined stiffness and a predetermined damping to make the magnetic circuit system movable relative to the basket frame. The present application further provides a speaker box. In the speaker and speaker box of the present invention, the magnetic circuit system is movable relative to the basket frame by using damping elastic members with predetermined stiffness and predetermined damping. The movement of the magnetic circuit system is suppressed by the damping elastic member, thereby achieving the purpose of shock absorption.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
Rubber diaphragm, sound device and application thereof are provided; rubber diaphragm includes distortion improving agent with mass percentage of 0.5-50%; distortion improving agent is random linear polymer with more than two monomer components randomly arranged on main chain, and distortion performance is synergistically regulated by monomer components; end group and/or side group and side chain of distortion improving agent includes special chemical reaction crosslinking points with mass percentage of 0.01-20, and number average molecular weight of distortion improving agent is 500-1200000; and distortion improving agent or main chain thereof is prepared by one-step method. Rubber diaphragm includes distortion improving agent, which is random linear polymer that components are randomly arranged on main chain. Sound device of rubber diaphragm is used to reduce distortion of low-frequency band obviously while maintaining good frequency response characteristics; and preparation method of distortion improving agent is simple, low in cost and has wide application.
A microelectromechanical system includes counter electrodes, a first diaphragm and a second diaphragm. The first diaphragm is provided with multiple first corrugations, each first corrugation includes a first crest and a first trough, and the first crests and troughs are arranged alternately in a third direction. The second diaphragm is provided with multiple second corrugations, each second corrugation includes a second crest and a second trough, and the second crests and troughs are arranged alternately in the third direction. The first crests are respectively aligned with the second troughs to form cavities, and the counter electrodes are disposed in the cavities respectively. The first troughs are respectively aligned with the second crests, and at least some of the first troughs are configured to be in direct contact with corresponding second crests. The system has an improved robustness while the high acoustic compliance and sensitivity from the sealed dual-diaphragm are maintained.
An amplifier circuit for a microphone, a microphone circuit and an electronic device are provided. The amplifier circuit includes a voltage regulator having an output terminal, a first constant current source having an input terminal connected to the output terminal of the voltage regulator, a first transistor having a gate serving as an input terminal of the amplifier circuit and a source serving as an output terminal of the amplifier circuit, a second transistor having a source connected to an output terminal of the first constant current source, a gate connected to the source of the first transistor and a drain connected to ground, a first driver configured to achieve high power supply rejection ratio of the amplifier circuit and a second driver configured to achieve high acoustic overload point of the amplifier circuit.
H03F 13/00 - Amplificateurs utilisant un élément amplificateur consistant en deux transducteurs couplés mécaniquement ou acoustiquement, p. ex. amplificateur téléphone-microphone
H03F 3/30 - Amplificateurs push-pull à sortie uniqueDéphaseurs pour ceux-ci
The present application discloses a damping mesh, including at least two first wires and at least two second wires. The first wires and the second wires are interlacedly weaved with each other. Each first wire includes a first circular wire with a circular cross-section and first protrusion portions formed by opposite sides of the first circular wire along the second direction extending outward. Each second wire includes a second circular wire with a circular cross-section and second protrusion portions formed by opposite sides of the second circular wire along the first direction extending outward. The two first protrusion portions located on a side of two adjacent first wires that are close to each other and the two second protrusion portions located on a side of two adjacent second wires that are close to each other together form a ventilation hole.
The present disclosure discloses an electromagnetic microphone including: a housing; a circuit board; and a sound transducer, including: a substrate including a back cavity, a vibrator mounted on a side of the substrate away from the circuit board and covering the back cavity, including: a membrane; and a magnetic component mounted on the membrane and configured to generate magnetic field; a coil located within the magnetic field of the magnetic component; a sound hole penetrated on the housing or the circuit board is configured to communicate with the back cavity; when external sound wave transmitted from the sound hole and the back cavity acts on the membrane, the magnetic component and the coil interact to generate electrical signal. The electromagnetic microphone in the present disclosure has higher sensitivity, reliability and stability.
Rubber diaphragm, sound device and application thereof are provided, rubber diaphragm contains distortion improving agent with mass percentage of 0.2-60%; distortion improving agent is block polymer, and end group or block component of distortion improving agent includes special chemical crosslinking point with mass fraction of 0.02-25%; number average molecular weight of block of distortion improving agent is 300-100000; and distortion improving agent or main structure thereof is accurately prepared through living polymerization. Rubber diaphragm contains distortion improving agent, and structure and content of special chemical crosslinking point are accurately controllable, so that position, height and width of damping peak of rubber diaphragm are accurately controllable, and damping characteristics of rubber diaphragm are accurately controllable. When rubber diaphragm is applied to sound device, distortion (THD) of low-frequency band is accurately reduced while maintaining good frequency response characteristics, and ensuring high in controllability, stable in performance and wide in application.
C08F 293/00 - Composés macromoléculaires obtenus par polymérisation sur une macromolécule contenant des groupes capables d'amorcer la formation de nouvelles chaînes polymères rattachées exclusivement à une ou aux deux extrémités de la macromolécule de départ
An amplifier circuit for a microphone, a microphone circuit and an electronic device are provided. The amplifier circuit includes a first transistor having a gate serving as an input terminal of the amplifier circuit, a source serving as an output terminal of the amplifier circuit and a drain connected to ground, a first constant current source having an input terminal connected to a power supply and an output terminal connected to the source of the first transistor, and a source follower including at least a second transistor, having a drain connected to the power supply, a gate connected to the source of the first transistor and a source connected to the drain of the first transistor.
A micro-electro-mechanical system comprises counter electrodes, a first diaphragm, and a second diaphragm. The first diaphragm is provided with a plurality of first corrugations, each first corrugation comprises a first wave crest and a first wave trough, and the plurality of first wave crests and the plurality of first wave troughs are alternately arranged in a third direction. The second diaphragm is provided with a plurality of second corrugations, each second corrugation comprises a second wave crest and a second wave trough, and the plurality of second wave crests and the plurality of second wave troughs are alternately arranged in the third direction. The plurality of first wave crests and the plurality of second wave troughs are respectively aligned to form cavities, and the plurality of counter electrodes are respectively provided in the cavities. The plurality of first wave troughs are respectively aligned with the plurality of second wave crests, and at least some of the plurality of first wave troughs and the corresponding second wave crests are configured to be in contact with each other. The micro-electro-mechanical system maintains high acoustic compliance and sensitivity of the sealed dual-diaphragm structure, and has better firmness.
A microphone module, comprising a shell, a PCB, and at least two MEMS microphones having sound inlet holes. The MEMS microphones, the PCB, and the shell are sequentially arranged from top to bottom; the MEMS microphones are electrically connected to the PCB; the PCB is provided with first sound pickup holes corresponding to the sound inlet holes of the MEMS microphones; the shell is provided with second sound pickup holes corresponding to the first sound pickup holes; and the sound inlet holes, the first sound pickup holes and the second sound pickup holes are sequentially communicated. The diameter size of the first sound pickup hole is defined to be D1 mm, and the distance between the center axes of two adjacent sound inlet holes is greater than or equal to 25D1 mm and less than or equal to 43D1 mm. A plurality of MEMS microphones, a PCB, and a shell are used, and sound waves are sensed by means of sound inlet holes in the MEMS microphones, first sound pickup holes in the PCB and second sound pickup holes in the shell. By means of the sound wave sensing structure, the microphone module has a good sound receiving effect, and the sound recognition effect is improved.
Provided in the present utility model is a sound production device, comprising: a basket; a vibration system comprising a diaphragm having an outer periphery fixed to the basket, and a first voice coil and a second voice coil; and a magnetic circuit system, the first voice coil being inserted and suspended in a first magnetic gap, and the second voice coil being inserted and suspended in a second magnetic gap. The magnetic circuit system comprises a lower clamping plate, a first central magnetic steel and a second central magnetic steel which are stacked and fixed on the lower clamping plate and are spaced apart from each other, a first auxiliary magnetic steel and a second auxiliary magnetic steel which are stacked and fixed on the lower clamping plate, and a specially-shaped edge magnetic steel which is stacked and fixed on the lower clamping plate. The specially-shaped edge magnetic steel comprises an edge magnet body, a first edge magnet and a second edge magnet. The edge magnet body is arranged between the first central magnetic steel and the second central magnetic steel; and the first auxiliary magnetic steel is located on the side of the first central magnetic steel away from the specially-shaped edge magnetic steel, and the second auxiliary magnetic steel is located on the side of the second central magnetic steel away from the specially-shaped edge magnetic steel. Compared with the prior art, the sound production device of the present utility model has a good acoustic performance.
The present disclosure relates to the technical field of machine housings, and provides a machine housing and an electronic device. The machine housing is applied to a mobile electronic terminal. The machine housing includes: an inner shell including an inner shell body and an accommodating groove formed by recessing from one side of the inner shell body; and an outer shell in an annular shape, wherein the housing extends around a periphery of the inner shell body and is fixed to the inner shell body. The outer shell is made of a titanium alloy material, the inner shell body is made of a metal material other than the titanium alloy material; and the outer shell and the inner shell body are fixedly molded into an integrated structure by a hot isostatic pressing process. Compactness, uniformity and performance of the machine housing may be improved by the hot isostatic pressing process.
A film bulk acoustic resonator, including: a substrate; an acoustic reflection structure; a bottom electrode; a piezoelectric film; a top electrode; and a raised frame. A spatial region formed by overlapping of the acoustic reflection structure, the bottom electrode, and the piezoelectric film and the top electrode in a thickness direction of the film bulk acoustic resonator is a resonance region, in which the raised frame is arranged, and openings are formed at a side of the raised frame away from the top electrode. The film bulk acoustic resonator can reduce the area ratio of the raised frame in the resonance region and the intensity of the parasitic resonance peak introduced by the raised frame without reducing the Q value of the resonator and without increasing manufacturing process steps.
The present invention relates to the technical field of enclosures, and provides an enclosure and an electronic device. The enclosure is applied to a mobile electronic terminal, and comprises: an inner enclosure, the inner enclosure comprising an inner enclosure body and an accommodating recess formed by recessing a side of the inner enclosure body; and an outer enclosure, the outer enclosure being in an annular shape, and the outer enclosure extending around the peripheral side of the inner enclosure body and being fixed to the inner enclosure body. The outer enclosure is made of a titanium alloy material; the inner enclosure body is made of a metal material other than the titanium alloy material; the outer enclosure and the inner enclosure body are fixed and formed into an integrated structure by means of the hot isostatic pressing process. The compactness, uniformity and performance of the enclosure of the present invention can be improved by means of the hot isostatic pressing process.
The present invention provides a thin-film bulk acoustic resonator. The resonator comprises a substrate, an acoustic reflection structure arranged on one side of the substrate, a bottom electrode stacked on the side of the acoustic reflection structure distant from the substrate, a piezoelectric film stacked on the side of the bottom electrode distant from the acoustic reflection structure, a top electrode stacked on the side of the piezoelectric film distant from the bottom electrode, and a protruding frame arranged on the side of the top electrode distant from the piezoelectric film; a spatial region formed by overlapping of the acoustic reflection structure, the bottom electrode, the piezoelectric film and the top electrode in the thickness direction of the thin-film bulk acoustic resonator is a resonance region; the protruding frame is located in the resonance region; and a plurality of holes are formed in the side of the protruding frame distant from the top electrode. According to the present invention, the area ratio of the protruding frame in the resonance region can be reduced, the intensity of a parasitic resonance peak caused by the protruding frame is reduced, the Q value of the resonator is not reduced, and steps of the manufacturing process are not increased.
A sound device is provided, including a frame, a vibration system, and a magnetic circuit system. The magnetic circuit system includes a magnetic yoke and a magnet assembly. The vibration system includes a vibrating diaphragm and a voice coil. The voice coil includes a pair of long axis edges and a pair of short axis edges. The magnet assembly includes a primary magnet and secondary magnets. The primary magnet is fixed on the magnetic yoke. The secondary magnets are disposed around the primary magnet. The secondary magnets and the primary magnet are disposed at intervals to form the magnetic gaps. The secondary magnet includes two first secondary magnets and two second secondary magnets. Compared with related art, the magnetic circuit system of the sound device has better magnetic force.
The present invention provides an integrated sound production assembly, comprising an upper cover and a lower cover which are oppositely arranged, and a sound production unit arranged in an accommodating space defined by the upper cover and the lower cover. The accommodating space is divided into a front cavity and a rear cavity by the sound production unit; the sound production unit comprises a frame, and a vibration system and a magnetic circuit system which are fixed on the frame; the magnetic circuit system is configured to be of a hollow structure in the direction from the front cavity to the rear cavity; an isolation member is provided between the magnetic circuit system and the lower cover; the isolation member isolates the hollow structure from the front cavity; the hollow structure and the isolation member jointly form a middle cavity; and the middle cavity is communicated with the rear cavity. In the integrated sound production assembly of the present invention, the hollow structure is provided in the magnetic circuit system, so that the volume of the rear cavity is increased, and the low-frequency performance of the product is improved.
A loudspeaker (100), comprising a basket (1), and a magnetic circuit system (3) and a vibration system (2) affixed to the basket (1). The magnetic circuit system (3) comprises a magnetic bowl (31), a main magnetic steel (32) attached above the magnetic bowl (31), and an auxiliary magnetic steel (33) spaced apart from the main magnetic steel (32). The space between the main magnetic steel (32) and the auxiliary magnetic steel (33) forms a magnet gap (35). The vibration system (2) comprises a diaphragm (21) fixedly disposed on the basket (1), and a voice coil (22) which is suspended in the magnet gap (35) and drives the diaphragm (21) to vibrate. The voice coil (22) comprises a first main body portion (221), and a first protruding portion (222) extending from a part of the first main body portion (221) to the magnet gap. The auxiliary magnetic steel (33) comprises a second main body portion (331), and a second protruding portion (332) extending from a part of the second main body portion (331) to the magnet gap (35). The first protruding portion (222) and the second protruding portion (332) are arranged staggered in the magnet gap (35). The auxiliary magnetic steel (33) is provided with a partial protrusion in the magnet gap (35) to reduce a partial magnet gap (35), so as to increase the driving force of the loudspeaker (100) and bring greater output sensitivity.
A coaxial loudspeaker, comprising: a basket, a magnetic circuit system, a woofer vibration system and a tweeter vibration system, wherein the magnetic circuit system is provided with a cavity, a tweeter magnetic gap and woofer magnetic gaps, the woofer vibration system comprises a woofer diaphragm and woofer voice coils, and the tweeter vibration system comprises a tweeter diaphragm and a tweeter voice coil, the woofer magnetic gaps including a first magnetic gap and a second magnetic gap, and the woofer voice coils including a first voice coil and a second voice coil; and the magnetic circuit system comprises a magnetic yoke, a main magnetic portion, a first auxiliary magnetic portion and a second auxiliary magnetic portion, the first voice coil surrounding the main magnetic portion, the second voice coil surrounding the first auxiliary magnetic portion and the first voice coil, and the main magnetic portion comprising a first magnet, a second magnet, a third magnet held between a second plate portion and the first magnet, and a main pole core, the main pole core comprising a first plate portion held between the first magnet and the second magnet, a second plate portion, and a wall portion inserted between the second magnet and the third magnet and spaced apart from the second magnet to form the tweeter magnetic gap.
The present application provides a sounding device, including a basket frame, a vibration system including a diaphragm, a first voice coil and a second voice coil, and a magnetic circuit system; the first voice coil and the second voice coil are inserted and suspended within a first magnetic gap and a second magnetic gap, respectively. The magnetic circuit system includes a lower clamping plate, a first center magnetic steel and a second center magnetic, and an irregular edge magnetic steel; the irregular edge magnetic steel includes a side magnet body, a first sub-magnetic steel, and a second sub-magnetic steel; the first sub-magnetic steel and the second sub-magnetic steel are located in a side of the first center magnetic steel and a side of the second center magnetic steel, respectively. Compared to the prior art, the sounding device of the present application has good acoustic performance.
A coaxial speaker including a basket frame, a magnetic circuit system, a woofer vibration system, and a tweeter vibration system. The magnetic circuit system is provided with a cavity, a tweeter magnetic gap, and a woofer magnetic gap. The woofer vibration system includes a woofer diaphragm and a woofer voice coil. The tweeter vibration system includes a tweeter diaphragm and a tweeter voice coil. The woofer magnetic gap includes a first magnetic gap and a second magnetic gap, and the woofer voice coil includes a first voice coil and a second voice coil. The magnetic circuit system includes a magnetic yoke, a main magnetic portion, a first sub-magnetic portion, and a second sub-magnetic portion. The main magnetic portion includes a first magnet, a second magnet, a third magnet, and a main pole core. The main core includes a first plate portion, a second plate portion, and a wall portion.
The present invention provides a loudspeaker module, comprising a housing, and a sound production unit accommodated in the housing. The sound production unit comprises a basket, and a vibration system and a magnetic circuit system which are fixed to the basket. The magnetic circuit system comprises a magnetic yoke, and a main magnetic part supported on the magnetic yoke. The vibration system comprises a diaphragm. The sound production unit is further provided with a through hole penetrating through the magnetic yoke and the main magnetic part. The housing comprises a lower housing and an upper housing. The loudspeaker module further comprises a sealing ring connected to the main magnetic part and the lower housing. The diaphragm is ring shaped, an outer edge of the diaphragm being fixed to the basket, and an inner edge of the diaphragm being fixed to the main magnetic part and surrounding the sealing ring. The sound production unit further comprises a waterproof air-permeable film which is attached to the magnetic yoke and covers the side of the through hole close to the upper housing. The waterproof air-permeable film, the main magnetic part, the sealing ring, and the lower housing enclosingly form a resonant cavity. The diaphragm, the lower housing, and the sealing ring enclosingly form a front cavity. The sealing ring is provided with a resonant cavity channel placing the front cavity and the resonant cavity in communication. The loudspeaker module provided by the present invention can improve the high-frequency sensitivity and acoustic performance of a product.
A loudspeaker unit and an electronic device, the loudspeaker unit comprising: a basket having an accommodating space, and a magnetic circuit system and a vibration system accommodated in the accommodating space. The vibration system comprises a voice coil and a diaphragm assembly, wherein the voice coil comprises a main portion and wires led out from the main portion, and the diaphragm assembly comprises a body portion and clearance portions formed by bending from the body portion in a direction away from the voice coil, the main portion being bonded to the body portion and forming clearance spaces with the clearance portions, the clearance spaces being adapted for passage of the wires, thus realizing connection to an external power supply component. The loudspeaker unit and electronic device provided in the embodiments of the present invention are configured to reduce the overall size of the loudspeaker unit and improve the bonding reliability between the voice coil and the diaphragm assembly.
A vibration motor, comprising a housing having an accommodating space, a stator fixedly arranged in the housing, and a vibrator fixed to the housing, wherein the stator comprises a pair of magnetic elements which are opposite to each other in a first direction and are spaced apart from each other; the vibrator comprises a spring leaf and a solenoid; two ends of the spring leaf in a second direction are fixed to the housing; the solenoid is fixedly connected to the spring leaf so as to be suspended between the two magnetic elements; the two magnetic elements drive the solenoid to vibrate in a third direction; an opening communicated with the accommodating space is formed on at least one side of the housing in the third direction; the first direction, the second direction, and the third direction are perpendicular to each other. The present invention further provides a touch device comprising the vibration motor. According to the vibration motor, after machine assembly, the driving force of the vibrator at different positions changes little, thereby avoiding experience differences caused by changes in assembly tolerances and thus ensuring consistency of the whole machine.
H02K 33/02 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p. ex. par des ressorts
H02K 1/34 - Parties du circuit magnétique à mouvement alternatif, oscillant ou vibrant
96.
RADIO FREQUENCY MODULE AND METHOD FOR MANUFACTURING THE SAME
A method for manufacturing radio frequency module, including: providing initial chip board including substrate and radio frequency modules fixed to the substrate, and the radio frequency module includes components; covering dry film on the initial chip board provided with the radio frequency modules, cavity is formed between the dry film, the components and the substrate; forming first metal layer on the dry film, forming plastic sealing layer on the first metal layer; forming second metal layer on the plastic sealing layer, the second metal layer is electrically connected to the first metal layer; and cutting the initial chip board along boundary between adjacent radio frequency modules to obtain single radio frequency module. The risk of short circuit of the radio frequency module can be effectively reduced, the electromagnetic shielding effect is better, and the production efficiency after electromagnetic shielding treatment is improved.
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
H05K 3/00 - Appareils ou procédés pour la fabrication de circuits imprimés
H05K 3/10 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché
H05K 3/32 - Connexions électriques des composants électriques ou des fils à des circuits imprimés
The present application discloses a speaker box, including a casing with an accommodating cavity, and a sounding unit fixed in the accommodating cavity and dividing the accommodating cavity into a closed rear acoustic cavity and a front acoustic cavity communicated with an outside of the casing. The sounding unit is further provided with a heat exchange member, and a heat exchange cavity is formed in the heat exchange member. The heat exchange cavity is filled with a heat exchange medium, and part of the heat exchange element is exposed to the sounding unit. Compared with the prior art, in the present application, the sounding unit is provided with a heat exchange member. When the speaker box is in the working state, the sounding unit vibrates and generates heat, and the heat is conducted to the heat exchange medium in the heat exchange member through a wall of the heat exchange member. The heat exchange medium is in contact with the outside air of the sounding unit for heat exchange to release heat, thereby improving the heat dissipation efficiency of the speaker box.
The present application provides a speaker including a basket frame, a magnetic circuit system and a vibration system. The magnetic circuit system includes a magnetic bowl, a main magnetic steel, and a sub-magnetic steel spaced apart from the main magnetic steel, with a magnetic gap formed in the space between the main magnetic steel and the sub-magnetic steel. The vibration system includes a diaphragm, and configured to drive the diaphragm to vibrate. The voice coil includes a first main body and a first projecting portion. The sub-magnetic steel includes a second main body and a second projecting portion. The first projecting portion and the second projecting portion are arranged staggeredly in the magnetic gap. The sub-magnetic steel is provided with localized projecting portions within the magnetic gap to reduce the localized magnetic gap to increase the driving force of the speaker and provide a greater output sensitivity.
The present application provides a multifunctional sounding device including a housing with an accommodating cavity and a sounding driver including a basket frame, a vibration system fixed to the basket frame, and a magnetic circuit system configured to drive the vibration system to vibrate along a first direction to generate sound. The multifunctional sounding device further includes a coil configured to drive the sounding driver to vibrate along the second direction, an elastic connecting member, and a flexible sealing film. The housing includes an upper cover body, a lower cover body, and a side wall. The side wall is provided with a sound-emitting hole. The flexible sealing film includes an annular body portion and an extension portion. The solution employs a method of vertically arranging the sealing film, thereby simplifying the molding and assembly process of the sealing film while achieving dual functionality of sound playback and vibration feedback.
The present application provides an integrated sounding component including an upper cover, a lower cover, and a sounding unit arranged in an accommodating space enclosed by the upper cover and the lower cover, the sounding unit dividing the accommodating space into a front cavity and a rear cavity. The sounding unit includes a basket frame, a vibration system, and a magnetic circuit system. The magnetic circuit system is configured as a hollow structure, and an isolating member is provided between the magnetic circuit system and the lower cover, which isolates the hollow structure from the front cavity. The hollow structure and the isolating member together form a middle cavity in communication with the rear cavity. The integrated sounding component of the present application increases the volume of the rear cavity by providing a hollow structure in the magnetic circuit system, thereby improving the product's low frequency performance.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
