Abrégé

A motor drive controller including a monitoring unit monitoring whether or not a use state of a motor to be controlled satisfies a predetermined condition, and an output information switching unit switching information to be outputted to the outside from an information output path from motor driving information indicating a drive state of the motor to monitoring information indicating the use state if the use state satisfies the predetermined condition.

Classes IPC  ?

• H02P 6/17 - Dispositions de circuits pour détecter la position et pour l’obtention d’informations sur la vitesse
• H02P 29/024 - Détection d’un défaut, p. ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge

Abrégé

A stator structure includes a stator core including a plurality of tooth sections, coils wound around the respective plurality of tooth sections via an insulator, and a first coil cover and a second coil cover that cover the coils from both sides in an axial direction of the stator core. The first coil cover and the second coil cover being coupled via the insulator.

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 3/18 - Enroulements pour pôles saillants
• H02K 3/32 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
• H02K 24/00 - Machines adaptées pour la transmission ou réception instantanée du déplacement angulaire de pièces tournantes, p. ex. synchro, selsyn
• G01D 5/20 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile

Abrégé

A vibrator unit capable of being attached to a housing of a vibration generator includes a vibrator including a magnet and a back yoke arranged on or above the magnet, and an elastic member. The elastic member includes a vibrator attachment part attached to the vibrator, a housing attachment part attached to the housing, and an arm part coupling the vibrator attachment part and the housing attachment part, said arm part displaceably supporting the vibrator attachment part at least in a horizontal direction with respect to the housing attachment part. The back yoke includes a planar part arranged on or above the magnet and a holding part bending the planar part toward the frame from the planar part. The vibrator attachment part is held and embraced by the holding part.

Classes IPC  ?

• H02K 33/06 - 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 dans lesquels la fréquence de fonctionnement est déterminée par la fréquence d'un courant alternatif appliqué en permanence avec des induits polarisés
• 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
• B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme

Abrégé

There is provided an angle adjusting mechanism (300) which rotates a rotatable body(200), rotatably supported by a first supporting body (100) via a first rotation shaft (201), so as to adjust a rotation angle of the rotatable body. The angle adjusting mechanism (300) includes a driving source (320); and an arm (340) which is rockably supported by a second supporting body (310) via a second rotation shaft (342), which is engaged with the rotatable body, and which rotates the rotatable body depending on driving output of the driving source.

Classes IPC  ?

• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

An instrument control device includes a variable mechanism including a motor configured to adjust a state of an instrument, and a variable controller configured to variably control the motor with a command signal. The variable controller includes a receiver configured to receive a communication signal output from a remote controller and output a received signal in accordance with the communication signal, and a motor controller configured to increase the command signal stepwise starting from input of the received signal until a rotational speed of the motor reaches a predetermined rotational speed.

Classes IPC  ?

• F21S 2/00 - Systèmes de dispositifs d'éclairage non prévus dans les groupes principaux ou , p. ex. à construction modulaire
• F21V 14/06 - Commande de la distribution de la lumière émise par réglage d’éléments constitutifs par un mouvement de réfracteurs
• F21V 21/15 - Montages réglables spécialement adaptés pour un actionnement par moteur, p. ex. par commande à distance
• F21V 21/30 - Enveloppes ou bâtis pivotants
• H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées
• H05B 37/02 - Commande

Abrégé

　An objective of the present invention is to provide a lighting device with which it is possible to realize a lighting device using a simple configuration that has a few number of components, thereby reducing manufacturing costs. Another objective of the present invention is to provide a lighting device with which it is possible to obtain a compact and slim design. This lighting device (10) is provided with a light source unit (70). The light source unit (70) includes a light-source part (71) on which a light source is mounted and a light-distribution-angle-adjusting means (72) for changing the lighting range from the light source attached to the light-source part (71). The light-distribution-angle-adjusting means (72) includes a reflective body (72a) for reflecting light emitted from the light source in which a helical guiding part (74) is provided on a peripheral surface, a moving body (72b) provided with an engaging part (75) that engages with the guiding part (74) in a slidable manner and is provided with a regulating part (77c) for restricting the movement direction to the direction of the axis of rotation of the reflecting body (72a), a supporting body (72c) for supporting movement in the direction of the axis of rotation of the moving body (72b), and an optical component (76) for changing the optical path of the emitted light fixed to the moving body (72b).

Classes IPC  ?

• F21S 8/04 - Dispositifs d'éclairage destinés à des installations fixes destinés uniquement au montage sur un plafond ou sur une structure similaire en porte-à-faux
• F21V 5/04 - Réfracteurs pour sources lumineuses de forme lenticulaire
• F21V 17/00 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection
• F21V 21/15 - Montages réglables spécialement adaptés pour un actionnement par moteur, p. ex. par commande à distance
• F21V 21/26 - Bras pivotants
• F21V 21/30 - Enveloppes ou bâtis pivotants
• F21V 23/04 - Agencement des éléments du circuit électrique dans ou sur les dispositifs d’éclairage les éléments étant des interrupteurs
• F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)

Abrégé

There is provided a tilting mechanism. The tilting mechanism includes a drive source (5) configured to drive a plate (2), a movement unit (4n, 5n) connected to the drive source (5), a conveyance unit (4) configured to be moved linearly by the movement unit (4n, 5n), and a plate support member (3) to which the plate (2) is fixed and which is partially engaged with the conveyance unit (4) so that the plate support member (3) is moved by the conveyance unit (4). The plate (2) is moved linearly by linearly moving the conveyance unit (4) together with the plate support member (3). Tilting operation of the plate (2) is performed by tilting the plate support member (3), the tilting of the plate support member (3) being caused by pushing the plate support member (3) by the conveyance unit (4), which moves linearly in a state that the linear movement of the plate support member (3) is stopped.

Classes IPC  ?

• F16M 11/04 - Moyens pour la fixation des appareilsMoyens permettant le réglage des appareils par rapport au banc
• F16M 11/10 - Moyens pour la fixation des appareilsMoyens permettant le réglage des appareils par rapport au banc permettant la rotation autour d'un axe horizontal
• F16M 11/18 - Têtes des supports avec mécanisme déplaçant les appareils par rapport au banc
• F16M 13/02 - Autres supports ou appuis pour positionner les appareils ou les objetsMoyens pour maintenir en position les appareils ou objets tenus à la main pour être portés par un autre objet ou lui être fixé, p. ex. à un arbre, une grille, un châssis de fenêtre, une bicyclette
• G02B 7/00 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques
• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

Provided is a resin composition for forming a self-lubricating liner which has a low friction coefficient, high durability, high load bearing, high heat resistance and high oil resistance and which is capable of dimensional adjustment by grinding, etc. after being cured. The thermosetting resin composition for a self-lubricating liner comprises an epoxy compound including an isocyanuric acid ring represented by formula (1) and a solid lubricant. (1)

Classes IPC  ?

• C08L 27/18 - Homopolymères ou copolymères du tétrafluoro-éthylène
• C08K 3/10 - Composés métalliques
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• F16C 33/20 - Surface de glissement principalement constituée de matériaux plastiques

Abrégé

Provided are: a self-lubricating liner which has a low friction coefficient, high durability, high load bearing, high heat resistance and high oil resistance, and is capable of dimensional adjustment by grinding or machining after being cured; and a resin composition for forming the self-lubricating liner.

Classes IPC  ?

• C08G 59/40 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés
• C08G 18/58 - Résines époxydes
• C08L 27/18 - Homopolymères ou copolymères du tétrafluoro-éthylène
• C08L 63/06 - Triglycidylisocyanurates
• C08L 71/10 - Polyéthers dérivés de composés hydroxylés ou de leurs dérivés métalliques de phénols
• F16C 23/04 - Paliers à contact lisse à autoréglage
• F16C 33/20 - Surface de glissement principalement constituée de matériaux plastiques

Abrégé

The invention describes a method for controlling a sensorless, brushless DC motor that is controlled via a bridge circuit preferably using pulse width modulation (PWM) having precommutation. According to the invention, in the braking operation each commutation interval is divided into two phases. A drive phase, lasting from the start of the commutation interval up to zero crossing in which the motor is controlled with the normal PWM, and a braking phase, lasting from zero crossing up to the next commutation time in which at least two motor phases are short-circuited and/or in which the PWM is operated with recovered energy. The efficiency of the control circuit is as low as possible so as to ensure that the braking energy is consumed in the control circuit.

Classes IPC  ?

• H02P 6/182 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position utilisant la force contre-électromotrice dans les enroulements
• H02P 3/12 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques pour arrêter ou ralentir individuellement un moteur dynamo-électrique ou un convertisseur dynamo-électrique pour arrêter ou ralentir un moteur à courant continu par freinage sur court-circuit ou sur résistance
• H02P 6/14 - Commutateurs électroniques
• H02P 6/15 - Commande du temps de commutation

Abrégé

A first pedaling force measurement device measures a plurality of pedaling force parameters acting on a first crank arm to one end of which a first pedal can be attached and to another end of which a crank shaft can be attached. The first pedaling force measurement device is provided with a strain-flexing part, a first parameter detection part and a first interference suppression part. Strain acting on the first crank arm is conveyed to the strain-flexing part. The parameter detection part is disposed on the strain-flexing part, and detects a plurality of parameters based on the strain being conveyed to the strain-flexing part. The interference suppression part suppresses interference in one parameter detected by the parameter detection part from the other parameters.

Classes IPC  ?

• G01L 1/22 - Mesure des forces ou des contraintes, en général en mesurant les variations de la résistance ohmique des matériaux solides ou des fluides conducteurs de l'électricitéMesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c.-à-d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance
• G01L 3/24 - Dispositifs pour déterminer la valeur de la puissance, p. ex. en mesurant et en multipliant simultanément les valeurs du couple par le nombre de tours par unité de temps, en multipliant les valeurs de la force de traction ou propulsive par la vitesse
• G01L 5/16 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de plusieurs composantes de la force

Abrégé

Provided is a resin composition for machinable liners for sliding members. This ultraviolet curable resin composition for self-lubricating liners contains a (meth)acrylate compound represented by formula (1) and having an isocyanuric acid ring and PTFE that serves as a solid lubricant. In the formula, X represents a group that contains an acryloyl group and is composed only of C, H and O; and each of Y and Z represents a group that is composed only of C, H and O. The content of PTFE is 10-50% by weight. This ultraviolet curable resin composition is suitable for a self-lubricating liner (24) of a spherical surface slide bearing (20) that has an outer ring (22) and an inner ring (26).

Classes IPC  ?

• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 33/04 - CoussinetsBaguesGarnitures antifriction
• F16C 33/20 - Surface de glissement principalement constituée de matériaux plastiques

Abrégé

To provide a motor control circuit that variably controls the speed of a motor, in which an appropriate control gain corresponding to the speed of the motor that is set can be automatically set. The motor control circuit includes a period error signal output means, a speed error signal output means and a gain correction means.

Classes IPC  ?

• G05B 13/00 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé
• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
• G05B 19/416 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par la commande de vitesse, d'accélération ou de décélération
• H02P 29/00 - Dispositions pour la régulation ou la commande des moteurs électriques, adaptées à des moteurs à courant alternatif et à courant continu
• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur

Abrégé

A pedal actuation amount detection device that electrically detects the deformation of a sensor member which is disposed along a load transmission path is made compact in size without sacrificing stiffness, and the amount of the deformation of the sensor member is increased to increase detection accuracy. A longitudinal-shaped sensor member (30) that is capable of torsional elastic deformation around a torsional center line (S) in a longitudinal direction is disposed at a position offset from a pedal arm (18) in a direction parallel with a support axis (O), and a reaction force acting portion at which a reaction force (R) acts is set at a position separated from the torsional center line (S) in the direction parallel with the support axis (O). Therefore, the sensor member (30) is flexurally deformed and torsionally deformed around the torsional center line (S) when a pedal is in operation. Therefore, it is possible to increase the deformation amount (relative displacement stroke of an operation input portion and the reaction force acting portion) of the sensor member (30) using a small space without sacrificing stiffness when compared to bending deformation only, and it is possible to make a pedal actuation amount detection device (10) compact in size while improving detection accuracy thereof.

Classes IPC  ?

• G05G 25/00 - Autres parties constitutives, caractéristiques ou accessoires des mécanismes de commande, p. ex. suspensions élastiques des organes intermédiaires

Abrégé

Disclosed is a motor control circuit for variably controlling motor speed, capable of automatically setting an appropriate control gain depending on the set motor speed. The disclosed motor control circuit (10) is provided with: a period error signal output means (20) for outputting a period error signal depending on the difference between the period (FG_count) of a detection signal inputted from a speed detection means (FG) and the period (EXC_count) of a reference signal (EXC) inputted from outside; a speed error signal output means (22) for outputting the speed error signal obtained by multiplying the speed gain with the period error signal; and a gain correction means (28, 30) which corrects a prescribed speed gain (Kf) by means of setting as a correction quantity the ratio of a correction reference period (Ref_count) to the period (EXC_count) of the reference signal (EXC), squaring said correction quantity and multiplying the result with the prescribed speed gain (Kf) supplied by the speed error signal output means (22).

Classes IPC  ?

• H02P 29/00 - Dispositions pour la régulation ou la commande des moteurs électriques, adaptées à des moteurs à courant alternatif et à courant continu
• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques

Abrégé

Disclosed is a motor control circuit for variably controlling motor speed, capable of automatically setting an appropriate advance angle value depending on the set motor speed. The disclosed motor control circuit (10) is provided with an advance angle setting means which adds an advance angle reference value and an advance angle correction value obtained by multiplying a proportionality factor with a correction quantity and which outputs an advance angle setting signal, and an advance angle setting correction means which corrects the advance angle reference value by means of the advance angle correction value obtained by setting as the correction quantity the ratio of a correction reference period (Ref_count) to the period of a reference signal (EXC) inputted from outside and multiplying said correction quantity with a prescribed proportionality coefficient (Ks) provided by the advance angle setting means.

Classes IPC  ?

• H02P 6/06 - Dispositions pour la régulation de la vitesse d'un seul moteur dans lesquelles la vitesse du moteur est mesurée et comparée à une grandeur physique donnée pour ajuster la vitesse du moteur

Abrégé

Provided is a pedal manipulation-amount detection apparatus, wherein, upon detecting stepping-on manipulation force on the basis of deformation of a sensor member arranged between a pedal arm and an output member, the detection precision and durability of the apparatus are improved. In the pedal manipulation-amount detection apparatus (10), a sensor member (30) is arranged on a side face of a pedal arm (18) with a pair of support pins (32, 34) interposed therebetween, linked to an operating rod (22) (output member) with a clevis pin (26) interposed therebetween, and deformation of the sensor member (30) is detected by a deformation detecting means (52) such as a strain gage. A manipulation input section upon which the stepping-on manipulation force is applied, and a reaction force applying section to which reaction force (R) is applied, are positioned so as to be superimposed with each other in a direction parallel to a support axis (O). In such a way, unbalanced load due to offset (deviation in position) in the direction parallel to the support axis (O) is inhibited, the posture and deformed shape of the sensor member (30) are stabilized, unbalanced abrasion at a rotating-sliding section is inhibited, and detection precision and durability are improved.

Classes IPC  ?

• G05G 1/38 - Organes de commande actionnés par le pied comprenant des moyens pour détecter en continu la position de la pédale
• B60T 7/02 - Organes d'attaque de la mise en action des freins par l'entremise d'une personne
• B60T 7/06 - Disposition de la pédale

Abrégé

The Installation or device is equipped with a power supply unit (50) and a High-Definition Multimedia Interface (HDMI), this installation or device being able to be connected to a second HDMI device with which it can communicate by using a protocol defined in the HDMI Standard, this installation or device being able to be set in Standby or Power-down mode and to be removed from this Standby or Power-down mode by said second HDMI device via a Consumer Electronic Control (CEC) line. The installation or device has a Power Management Unit (PMU) arranged on the primary side (52) of said power supply unit, this PMU having its own power supply circuit directly connected to the power supply source of this installation or device and being arranged for switching OFF the electrical energy on the secondary side (54) of said power supply unit when this installation or device enters said Standby or Power-down mode. The PMU is associated with CEC means (56) on said primary side arranged for decoding and processing at least a wake-up signal of a CEC Protocol defined in the HDMI Standard. The CEC interface (58) is arranged for directly communicating with the CEC means on said primary side. In particular, the CEC interface comprises a HDMI supply domain and a PMU supply domain which have in-between a galvanic isolation, a data transfer between these HDMI and PMU domains via the CEC line being operated only through one or several non-galvanic element(s).

Classes IPC  ?

• H04N 5/63 - Production de l'énergie d'alimentation spécialement adaptée aux récepteurs de télévision
• H04N 5/765 - Circuits d'interface entre un appareil d'enregistrement et un autre appareil

Abrégé

The invention relates to an electric device having at least one interference suppression capacitor (6, 60) which, upon interruption of the mains voltage (7), is actively discharged by connecting an electric load (69) in parallel. For this purpose, the device comprises means for monitoring the mains voltage (7) and means for connecting (68) the electric load.

Classes IPC  ?

• G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
• G06F 1/32 - Moyens destinés à économiser de l'énergie
• H02M 7/162 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
• H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The invention relates to an electric device, in particular having at least one illuminating system comprising LEDs, for example, a television comprising LED backlighting (57). The electric device has a stand-by state (ZPM) with very low power consumption, in which only a control unit (3) is supplied with power via a capacitive voltage divider. For this purpose, in addition to parts of the power supply system (2), according to the invention the interference suppression capacitor (6) is also switched off.

Classes IPC  ?

• G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
• G06F 1/32 - Moyens destinés à économiser de l'énergie
• H02M 7/162 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
• H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

An operation amount detection apparatus includes a transmission member that transmits a load corresponding to an operation amount between a shaft portion and an operation target member through connecting portions that connect a first support portion supported by the operation target member and a second support portion supported by the shaft portion, and a detection device that detects an operation amount based on an amount of deformation of the connecting portions. A plurality of the connecting portions are provided in parallel between the first support portion and the second support portion, and deflect due to transmission of a load so that the first support portion and the second support are relatively displaced in a direction of a linear motion. The respective connecting portions are mutually opposed in a direction perpendicular to a lengthwise direction of the shaft portion.

Classes IPC  ?

• B60T 7/04 - Organes d'attaque de la mise en action des freins par l'entremise d'une personne actionnés au pied
• B60T 11/18 - Sa liaison avec l'organe d'attaque
• G05G 1/38 - Organes de commande actionnés par le pied comprenant des moyens pour détecter en continu la position de la pédale

Abrégé

While the high energy density acquisition of a magnet is effective for smaller size and weight of an outer rotor motor or a permanent magnet field type DC motor and an improvement in torque density, torque pulsation, armature reaction, or the like deteriorates. If slot-less (core-less) construction is used in order to eliminate the torque pulsation and the armature reaction, the magnetoresistance is increased in a motor magnetic circuit. In order to solve the problems, an annular magnet which opens in the direction opposite to the direction in which a U shaped segment created in a unidirectional magnet field opens is used to thereby obtain a continuously changing anisotropic distribution in the range of angles of 0 to 90 degrees with an inner periphery direction tangent line and energy density (BH)max = 160 to 186 kJ/m3, which is applied.

Classes IPC  ?

• H02K 1/27 - Noyaux rotoriques à aimants permanents

Abrégé

A fan comprises a hub and a stator coil disposed with the hub. A first set of blades is disposed about the hub. Second blades are disposed on an interior of the hub. An opening is provided through the face of the hub. When the fan is operating, a flow of air passes through the opening which is then captured by the second blades and redirected across the stator coils to provide cooling.

Classes IPC  ?

• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur

Abrégé

Keys of a keypad are configured to exhibit a wave-like vertical profile across a width of the keypad, thereby improving user comfort. Keys on the edge of the main grouping are raised, with the height of adjacent keys gradually reduced until a minimum (trough) is achieved. The height of the further adjacent keys is then increased until a maximum (peak) is achieved. In accordance with one embodiment, the keyboard includes two key troughs separated by an intervening raised key portion. The key troughs are positioned at the approximate location of hands resting on the home row of keys, for example in the case of a QWERTY keypad at the 'D' key and at the 'K' or 'L' keys. The continuous, flowing change in the vertical profile of the keycaps renders the keyboard more accessible to the natural, relaxed state of the human hand, easing physical strain.

Classes IPC  ?

• G06F 3/02 - Dispositions d'entrée utilisant des interrupteurs actionnés manuellement, p. ex. des claviers ou des cadrans

Abrégé

A cooling fan is disclosed. The cooling fan comprises fan blades having a primary blade component and a secondary blade component. The primary blade component produces an axial airflow. The secondary blades produce a radial airflow. The axial airflow and the radial airflow, respectively created by the primary blades and the secondary blades, combine to provide an increase axial outflow. The primary and secondary blades combine the axial and radial flows respectively created by the blades to produce an increased outflow. The design has been observed to reduce tonal noise as well.

Classes IPC  ?

• F04D 3/00 - Pompes à flux axial

Abrégé

A multiple-light discharge-lamp lighting apparatus wherein a circuit arrangement in which a transformer is provided at each end of each of discharge lamps is used to maintain a uniform lamp current for the discharge lamps, while a reduced number of components are used. The multiple-light discharge-lamp lighting apparatus (10) includes the same number of first transformers (TA1-TAn) as discharge lamps (La1-Lan) and also includes a single second transformer (TB). A non-grounded end of a secondary winding (e.g., Ns1) of each first transformer (e.g., TA1) is connected to an end of an associated discharge lamp (e.g., La1), while a non-grounded end of a secondary winding (Ws) of the second transformer (TB) is connected to the other end of each of all the discharge lamps (La1-Lan). It is arranged that the potential at the non-grounded end of the secondary windings (Ns1-Nsn) of the first transformers (TA1-TAn) vary in the opposite phase to the potential at the non-grounded end of the secondary winding (Ws) of the second transformer (TB).

Classes IPC  ?

• H05B 41/24 - Circuits dans lesquels la lampe est alimentée par courant alternatif à haute fréquence
• G02F 1/13357 - Dispositifs d'éclairage
• H01F 38/08 - Transformateurs ou inductances à fortes fuites

Abrégé

Disclosed is a hub of an axial fan. The hub includes primary fan blades and splitter blades disposed between pairs of the primary fan blades. The resulting hub has been observed to reduce tonal noise during fan operation.

Classes IPC  ?

• B64C 11/16 - Pales

Abrégé

A fan blade is described having a substantially non-varying stagger angle along its radial length. In one embodiment, a fan blade has a substantially non-varying stagger angle and a substantially non-varying camber angle along its radial length. In another embodiment, each airfoil section of the blade has at least substantially the same stagger angle or substantially the same camber angle.

Classes IPC  ?

• B64C 27/46 - Pales

Abrégé

A discharge lamp operating device the operation of which can be stopped by accurately detecting the initial state of discharge occurring in the secondary-side circuit wiring of a transformer and which can be applied to a large-size liquid crystal display inexpensively. The discharge lamp operation device (1) comprises a transformer (5), a transformer drive circuit (4), and a control circuit (3) for controlling the transformer drive circuit (4). The transformer drive circuit (4) drives the primary side of the transformer (5). A discharge lamp (6) is connected to the secondary side of the transformer (5) and operated. The discharge lamp operating device further comprises a discharge detection pattern (13) having one end connected to the earth and the other end connected to the control circuit (3) and means for stopping power supply to the secondary side of the transformer (5) when detecting a voltage induced by the electromagnetic wave received by the discharge detection pattern (13). At least a part of the discharge detection pattern (13) is disposed near the high-voltage wiring of the secondary-side circuit of the transformer (5).

Classes IPC  ?

• H05B 41/24 - Circuits dans lesquels la lampe est alimentée par courant alternatif à haute fréquence

Abrégé

A planar lighting device in which workability for placement of a heat conduction agent is improved and in which heat produced from a point-like light source is efficiently released to achieve high brightness. A double-sided flexible printed circuit board (10) of the planar lighting device (1) has a recess (23) formed at a portion of the surface where the point-like light source (3) is mounted. A bottom surface (22) of the recess (23) has a conductor pattern (7R) on the opposite side (10R) of that side (10F) of the double-sided flexible printed circuit board (10) on which the point-like light source is mounted. Heat conduction resin (11) is placed in a space formed by the recess (23) and a mounting surface (3b) of the point-like light source (3). Preferably, the double-sided flexible printed circuit board (10) is attached to a heat radiation plate (5a) with a heat conduction tape (12) in between them.

Classes IPC  ?

• F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
• F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
• G02F 1/13357 - Dispositifs d'éclairage
• H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
• H01L 33/64 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments d'extraction de la chaleur ou de refroidissement
• F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)

Abrégé

There is provided highly efficient discharge lamp lighting apparatus capable of reducing its cost by reducing high withstand voltage components on the secondary side of a high voltage transformer and stabilizing, its circuit operation. A discharge lamp lighting apparatus (1) comprises a high voltage transformer (2), a switching circuit (4) for driving the primary side of the high voltage transformer (2), and a triangular wave generation circuit (15) for determining the operation frequency of the switching circuit (4). The triangular wave generation circuit (15) includes a frequency switching means (25) for switching the operation frequency of the switching circuit (4) between before and after the lighting of a discharge lamp (3). At the secondary side of the high voltage transformer (2), a resonant circuit having a capacitance component consisting of only a parasitic capacitance (CCFL) is also formed. Before the lighting of the discharge lamp (3), the switching circuit (4) is operated at a frequency around the series resonance frequency of the resonant circuit on the secondary side. After the lighting of the discharge lamp (3), the switching circuit (4) is operated at a frequency around the frequency at which the phase difference between the voltage and the current on the primary side becomes minimum.

Classes IPC  ?

• H05B 41/24 - Circuits dans lesquels la lampe est alimentée par courant alternatif à haute fréquence