Disclosed in the present application are a compound dispersing agent, a mixed electroplating solution and the use. The compound dispersing agent comprises a first anionic surfactant, a second anionic surfactant and a nonionic surfactant, the first anionic surfactant comprising a sulfonate compound, and/or the second anionic surfactant comprising one or more of betaine or carboxylate, and/or the nonionic surfactant comprising one or more of a sulfonic acid naphthoquinone formaldehyde condensate, a melamine-formaldehyde condensate and a methylnaphthalene sulfonic acid formaldehyde condensate sodium salt.
The present invention relates to the field of low-voltage electric appliances, and provides an arc extinguishing structure of a circuit breaker, which can be used for direct-current power distribution protection in the field of new energy and used for prolonging the service life of a contact and solving the problem of continuous arcing. The arc extinguishing structure of the present invention comprises a moving contact, a static contact, and a second arc extinguishing device; the second arc extinguishing device is arranged opposite to the moving contact and comprises a plurality of second arc extinguishing pieces; the arc extinguishing structure further comprises a first arc extinguishing device provided on the moving contact, and the first arc extinguishing device comprises a plurality of first arc extinguishing pieces for extinguishing some of electric arcs facing the moving contact, so that the arc extinguishing efficiency is further improved, and the service life of a product is prolonged. The present application further provides a circuit breaker, comprising the arc extinguishing structure, and thus, the arc extinguishing efficiency is high and the service life is long.
SHANGHAI SIMBATT ENERGY TECHNOLOGY CO., LTD. (China)
ZHEJIANG CHINT ELECTRICS CO., LTD. (China)
Inventor
Ma, Yu
Cao, Hanxing
Li, Zhibo
Abstract
The present application provides a composite conductor, a preparation method therefor, and a conductive element. The preparation method comprises: providing conductive paste, the conductive paste comprising metal powder and a reagent, and the reagent comprising resin and a polar compound; applying an electric field to the conductive paste to obtain a composite conductor precursor; coating the composite conductor precursor with a graphene layer to obtain a composite conductor preform; and hot-pressing the composite conductor preform to obtain a composite conductor. The composite conductor prepared in the present application exhibits high conductivity.
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H01B 1/16 - Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
4.
ELECTROPLATING ADDITIVE SOLUTION AND PREPARATION METHOD THEREFOR, AND ELECTROPLATING MIXED SOLUTION OF HARD SILVER AND GRAPHENE
An electroplating additive solution and a preparation method therefor, and an electroplating mixed solution of hard silver and graphene. The electroplating additive solution is prepared from a metal oxide, glycerol, an alkali metal hydroxide, and water as raw materials. The mass ratio of the metal oxide, the glycerol, the alkali metal hydroxide, and water is 1 : (1-3) : (3-6) : (8-15). When the electroplating additive is used in the electroplating mixed solution, the hardness of the finally formed plating layer can be increased.
A drain electrode structure, a mounting structure for a mutual inductor, and a circuit breaker. The drain electrode structure comprises: an electronic component board (4), the electronic component board (4) being configured to be electrically connected to an N-pole wiring board (2); a release device (5) welded on the electronic component board (4), the release device (5) being electrically connected to the electronic component board (4); a first elastic member (6) welded on the electronic component board (4), a first end of the first elastic member (6) being electrically connected to the electronic component board (4), and a second end of the first elastic member (6) being configured to be electrically connected to an L-pole wiring board (3); and a mutual inductor (7) welded on the electronic component board (4), the mutual inductor (7) being electrically connected to the electronic component board (4), and the mutual inductor (7) being configured to be coupled with an L-phase main line (8) and an N-phase main line (9). The release device (5), the first elastic member (6), the mutual inductor (7), and the electronic component board (4) form a modular structure.
The present invention relates to the technical field of low-voltage electric appliances. Disclosed are an isolating switch closing energy storage mechanism and an isolating switch. The isolating switch closing energy storage mechanism comprises a contact carrier, a contact bridge, an elastic member and an energy storage structure. The contact carrier is slidably assembled in a housing. The contact bridge is movably assembled on the contact carrier. The elastic member is connected to the contact bridge and the contact carrier, and the elastic member is used for driving moving contacts on the contact bridge to move towards fixed contacts. The energy storage structure is used for enabling, when the contact carrier drives the moving contacts on the contact bridge to move towards the fixed contacts, the elastic member to first store energy and then release energy. The energy released by the elastic member can drive the moving contacts to quickly contact the fixed contacts, so that the generation of contact arcs can be reduced, and the contact resistance and temperature between the moving contacts and the fixed contacts can be effectively reduced. Therefore, the degree of contact ablation and wear is reduced, and the electrical life performance of the isolating switch is improved.
A manual operation mechanism of a circuit breaker, and a circuit breaker. The manual operation mechanism of the circuit breaker comprises an external rotary handle (1), a transmission mechanism (2), a linkage arm (3) and a rocker arm (4), wherein the external rotary handle (1) is rotatably provided outside a housing (100) of the circuit breaker around a first rotating center; the linkage arm (3) is rotatably provided inside the housing (100) around a second rotating center, and the linkage arm (3) is connected to the external rotary handle (1) by means of the transmission mechanism (2); one end of the rocker arm (4) is rotatably arranged inside the housing (100) around a third rotating center, and the other end of the rocker arm (4) is slidably connected to the linkage arm (3); and the three rotating centers do not coincide with one another.
A high-frequency chain-type micro inverter, and a signal modulation method and apparatus for a high-frequency chain-type micro inverter. The method is applied to the high-frequency chain type micro inverter and comprises: according to a carrier signal and a modulation signal, forming an intermediate signal (S101); obtaining a reference signal according to the carrier signal (S102); and according to the carrier signal, the reference signal, and the intermediate signal, forming a driving signal, the driving signal being used for driving a primary side full-bridge circuit (10) and a secondary side conversion circuit (30), so that the high-frequency chain type micro inverter outputs at least a two-phase alternating-current voltage (S103).
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer memory devices; Computer monitors; Data processing apparatus; Downloadable computer application software for mobile phones, namely, software for database management, power station management, power station equipment management, intelligent monitoring of power stations, alarm management, intelligent data analysis, remote control of power stations, fault recording and firmware upgrade; Downloadable computer programs for database management, power station management, power station equipment management, intelligent monitoring of power stations, alarm management, intelligent data analysis, remote control of power stations, fault recording and firmware upgrade; Downloadable computer software applications for database management, power station management, power station equipment management, intelligent monitoring of power stations, alarm management, intelligent data analysis, remote control of power stations, fault recording and firmware upgrade; Downloadable computer software platforms for database management, power station management, power station equipment management, intelligent monitoring of power stations, alarm management, intelligent data analysis, remote control of power stations, fault recording and firmware upgrade; Downloadable software for monitoring and controlling communication between computers and automated machine systems; Electric control devices for energy management; Recorded computer programs for database management, power station management, power station equipment management, intelligent monitoring of power stations, alarm management, intelligent data analysis, remote control of power stations, fault recording and firmware upgrade
42 - Scientific, technological and industrial services, research and design
Goods & Services
Development of computer platforms; Electronic data storage; Monitoring of computer system operation by remote access; Platform as a service (PAAS) featuring computer software platforms for use in database management; Providing information relating to computer technology and programming via a website; Providing on-line non-downloadable software for computing energy savings; Providing scientific information, advice and consultancy relating to carbon offsetting; Providing virtual computer systems through cloud computing; Research and development of new products for others; Scientific research in the field of energy
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer software platforms, recorded or downloadable; computer programs, downloadable; computer software applications, downloadable; application software for mobile phones; computer programs, recorded; monitors [computer programs]; data processing apparatus; data management software; monitors [computer hardware]; electric control devices for energy management. Providing online non-downloadable computer software; providing information relating to computer technology and programming via a website; monitoring of computer system operation by remote access; providing virtual computer systems through cloud computing; development of computer platforms; electronic data storage; platform as a service [PaaS]; scientific research in the field of energy; providing scientific information, advice and consultancy relating to carbon offsetting; research and development of new products for others.
09 - Scientific and electric apparatus and instruments
Goods & Services
Chargers for electric accumulators; Charging stations for electric vehicles; Electric accumulators; Electric converters; Electric power converters; Electricity distribution consoles; Electronic controllers for use with power converters; Lithium ion batteries; Photovoltaic inverters; Photovoltaic modules
09 - Scientific and electric apparatus and instruments
Goods & Services
Converters, electric; distribution consoles [electricity]; Electric power converters; microcontrollers; lithium batteries; accumulators, electric; chargers for electric accumulators; charging stations for electric vehicles; photovoltaic modules; Photovoltaic apparatus and installations for generating solar electricity.
The present application discloses a residual-current circuit breaker, comprising: at least one circuit breaker module, a trip unit module, and a transformer module. The circuit breaker module and the trip unit module are pluggably connected to the transformer module separately to form an integrated residual-current circuit breaker by means of assembling. Thus, the miniaturization of the assembled residual-current circuit breaker can be achieved, and the assembling/disassembling efficiency of the residual-current circuit breaker can also be improved.
An air-blowing tripping mechanism that is driven by gas, and includes a housing having a sealing cavity with an air-blowing channel blocked by an insulating partition plate that is blown by the gas to move, whereby the gas enters the sealing cavity, and a push rod rotationally connected to the housing. The push rod includes a rotating arm rotationally connected aside of the sealing cavity, and a reset arm. One end of the rotating arm has an operating portion opposite to an operating mechanism of a circuit breaker, and the other end of the rotating arm has an air-blowing end that extends into the sealing cavity, is located on one side of the insulating partition plate and can drive the rotating arm to rotate under the action of the gas. The reset arm is on the rotating arm and used for driving the push rod to reset.
A test button loop device that includes an elastic button and a conductive member forming a test loop. The elastic button includes a contact portion matched with the conductive member, and a button member pressing the contact portion. The conductive member is linked with a handle mechanism or an operating mechanism or a moving contact of a circuit breaker, which drives the conductive member to approach the contact portion when the circuit breaker is closed, and the button member in this state can drive the contact portion to contact the conductive member to switch the test loop on. The handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive member away from the contact portion when the circuit breaker is opened, and the button member in this state can will not be able to contact the conductive member.
A direct-current arc detection method based on mathematical morphology and mode recognition. The method comprises: selecting feature frequency bands, extracting the energy proportions, in each feature frequency band, of a basic value component and/or a fluctuation component of an electrical quantity spectrum in an arc fault state and a normal working state, and establishing and training an arc detection mode recognition model; acquiring an electrical quantity of an operating state of a direct-current power system; extracting the energy proportion, in each feature frequency band, of the basic value component or the fluctuation component in the electrical quantity spectrum of the operating state; and inputting the energy proportions in each feature frequency band and working state data of the direct-current power system in the operating state into the arc detection mode recognition model for determination. In the present invention, by means of performing mathematical transformation-mathematical morphology computation on an electrical quantity, extracting, from an electrical quantity spectrum, the energy proportions of basic value components or fluctuation components of a plurality of feature frequency bands where an arc is generated, and inputting the energy proportions into an arc detection mode recognition model, so as to determine whether a series arc fault has occurred, the impact of the fluctuation of a signal sampling absolute value is relatively small, and the precision is high.
G01R 31/12 - Testing dielectric strength or breakdown voltage
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
Provided in the present invention is a voltage regulation method for a three-phase four-bridge-arm three-level inverter. The method comprises: determining a voltage vector corresponding to a three-phase voltage; constructing a controllable spatial polyhedral region on the basis of an abc three-dimensional coordinate system and the voltage vector; positioning preset reference vectors in a plurality of sub-regions of the controllable spatial polyhedral region, so as to generate reference voltage vectors corresponding to the reference vectors, wherein the reference voltage vectors are used for controlling output states of corresponding four bridge arms; sorting the reference voltage vectors with a modulation policy in which a zero-level output state is reduced; and generating a switching pulse sequence of the bridge arms according to the sorted reference voltage vectors and a corresponding action time, so as to regulate a midpoint voltage of a three-phase four-bridge-arm three-level inverter. In this way, a midpoint voltage of an inverter can be balanced.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Circuit breakers; electric relays; electrical distribution boxes; electrical switchgear, namely, voltage boosting devices for electric power lines; electricity distribution consoles; fiber optic couplings; integrated circuits; inverters for power supply; wire connectors;
A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween compound, and the anionic surfactant is hydrocarbyl sulfate salts. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. Also disclosed are a preparation method of the compound dispersant, which is simple to operate, a mixed electroplating solution containing the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, in which graphene is distributed uniformly and stably.
A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween compound, the anionic surfactant is a hydrocarbyl sulfonate salt compound, and the wetting agent is an amide compound. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. In addition, disclosed are a preparation method of the compound dispersant, which is used for preparing the compound dispersant and is simple to operate, a mixed electroplating solution containing the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, in which graphene is distributed uniformly and stably.
A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent, wherein the nonionic surfactant is a Tween compound, and the wetting agent includes a hydrocarbyl sulfate salt compound and a hydrocarbyl sulfonate salt compound. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. Also disclosed are preparation method of the compound dispersant, which is simple to operate and produces a compound dispersant that can effectively block or slow down the agglomeration of graphene in the dispersion solution, a mixed electroplating solution including the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, which is simple to operate, wherein graphene is distributed uniformly and stably.
The present invention relates to the field of low-voltage electrical appliances, and particularly relates to a comprehensive-sensing air circuit breaker. A smart controller of a control system of the comprehensive-sensing air circuit breaker comprises an MCU circuit. A circuit breaker self-inspection module of the smart controller comprises: a current sampling circuit, which comprises a mutual-inductor disconnection detection circuit used for detecting a connection state of an air-core mutual inductor; an iron-core mutual-inductor operating current measurement circuit, which is used for monitoring an output current of an iron-core mutual inductor; an electromagnetic-release disconnection detection circuit, which is used for detecting a connection state of an electromagnetic release of an execution unit; an auxiliary-power-source voltage measurement circuit, which is used for detecting an input state of an auxiliary power source for supplying power to a short-circuit protection mechanism; an energy storage readiness detection circuit, which is used for detecting an energy storage state of an energy storage operation mechanism; and a releasing state detection circuit, which is used for detecting a releasing state of the air circuit breaker. The circuit breaker self-inspection module of the comprehensive-sensing air circuit breaker can perform self-inspection on the operating state of the air circuit breaker, such that reliable and stable operating of the air circuit breaker is ensured.
An electromagnetic mechanism, comprising a coil, a core arranged in the coil, an outer magnet yoke and an inner magnet yoke, wherein the inner magnet yoke is located between the coil and the outer magnet yoke; a permanent magnet is provided on the inner magnet yoke; an inner bending pin bent in the direction of the core is provided on a side face of the inner magnet yoke that is close to the core; the inner bending pin is provided with an avoidance groove for avoiding the core; and a first air gap is formed between the periphery of the core and the inner bending pin. The inner bending pin of the inner magnet yoke is provided with the avoidance groove for avoiding the core, the first air gap in contact with the inner magnet yoke is formed on the periphery of the core, a new magnetic circuit is formed on an outer side of the inner magnet yoke by means of the first air gap, and the permanent magnet attracts the new magnetic circuit, such that the characteristics of attraction and release can be guaranteed. In addition, there is no need to use a gasket, thereby solving the problems caused by a gasket of an increase in assembly difficulty, it being difficult to control the size, and serious assembly errors.
Provided is a circuit breaker. The circuit breaker comprises at least one first housing (11), and a second housing (12) assembled on one side of the first housing (11), wherein at least one circuit breaker pole (2) is provided in the first housing (11), and each circuit breaker pole (2) at least comprises a one-phase main circuit; an electric leakage protection module (3) is provided in the second housing (12), and the electric leakage protection module (3) comprises a wiring terminal and a zero-sequence mutual inductor (34); a lead-out conductive member (45) is at least connected to the one-phase main circuit; the wiring terminal is connected to a wiring sheet; a wiring port is provided on a side wall of the side of the first housing (11) that is close to the second housing (12); the lead-out conductive member (45) and/or the wiring sheet are/is connected by means of insertion through the wiring port, so as to form a plug connection structure connected to a main loop; and the lead-out conductive member (45) and/or the wiring sheet pass(es) through a wire-passage hole of the zero-sequence mutual inductor (34). The lead-out conductive member (45) of the circuit breaker pole (2) fits with the wiring sheet of the electric leakage protection module (3) to form the plug connection structure connected to the main loop, such that the circuit breaker pole (2) and the electric leakage protection module (3) which are modularized meet the requirement of the main loop for passing through the zero-sequence mutual inductor (34) during an assembling process, and the wiring is simple and convenient.
A residual current operated circuit breaker, relating to the field of low-voltage electrical technology. The residual current operated circuit breaker comprises an electric leakage tripping pole module (2) as well as an L pole circuit breaker module (1) and an N pole circuit breaker module (3) which are arranged on two sides of the electric leakage tripping pole module (2); the L pole circuit breaker module comprises an L pole moving contact mechanism (12); the N pole circuit breaker module comprises an N pole moving contact mechanism (33); the electric leakage tripping pole module (2) comprises an electric leakage trip member (24), an electric leakage latch (27), a reset member (25), a rocker arm (26), an assembly shaft (28), and a release (201); the rocker arm (26) abuts against the reset member (25); the assembly shaft (28) is in linkage with the L pole moving contact mechanism (12) and the N pole moving contact mechanism (33); the rocker arm (26) is connected to one side of the electric leakage latch (27); at least one of the rocker arm (26) and the electric leakage latch (27) can abut against the assembly shaft (28); when the electric leakage trip member (24) and the electric leakage latch (27) are separated, the reset member (25) drives the rocker arm (26) to rotate, so that at least one of the rocker arm (26) and the electric leakage latch (27) pushes the assembly shaft (28). The L pole circuit breaker module (1) and the N pole circuit breaker module (3) are simultaneously broken, thereby improving the breaking capability.
A circuit breaker permission management method and a circuit breaker. The circuit breaker at least stores a plurality of permission accounts and at least three permission sets, each permission account at least corresponds to one permission set, and each permission account corresponds to one permission set. The circuit breaker permission management method comprises the following steps: S1: obtaining an input account, and comparing and verifying the input account with all the permission accounts in sequence until a permission account identical to the input account is found; S2: obtaining a permission set corresponding to the permission account identical to the input account as a current user permission set; and S3: displaying an operation interface on the basis of the current user permission set, and/or verifying a user operation, for simply and quickly achieving hierarchical management of functions of the circuit breaker. A complex user management function does not need to be set, the implementation cost is low, the use is convenient, and the application value is good.
A residual current operated circuit-breaker, comprising a residual current transformer, an excitation oscillation circuit, an integral circuit and a main control circuit, wherein the excitation oscillation circuit is connected to an excitation winding on the residual current transformer; the integral circuit is used for converting an excitation square wave signal generated by the excitation oscillation circuit into a triangular wave signal, and then respectively outputting the triangular wave signal by means of a first output end and a second output end; the first output end is connected to the main control circuit by means of a filter amplifier circuit; the second output end is directly connected to the main control circuit; and the main control circuit respectively collects the residual currents of the filter amplifier circuit and/or the second output end, and is used for controlling the residual current operated circuit-breaker to switch off. Therefore, not only can both large and small residual currents be processed, but the use of hardware circuits can also be reduced.
H02H 3/34 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to difference between voltages or between currentsEmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
H02H 3/05 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with means for increasing reliability, e.g. redundancy arrangements
H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
A circuit breaker, comprising a housing and at least two L-poles, wherein a leakage protection pole is arranged between the two L-poles, an electromagnetic coil of an electromagnetic system is arranged at a side of a third operation mechanism of the leakage protection pole, a connecting rod is rotatably assembled at a side of the electromagnetic coil, and the connecting rod connects the third operation mechanism and operation mechanisms of two adjacent L-poles in a linkage manner. When the circuit breaker is switched on, the connecting rod rotates to a switch-on position along with the leakage protection pole and the operation mechanisms of the two adjacent L-poles; and when the circuit breaker is switched off, the connecting rod rotates in a switch-off direction along with the operation mechanism of the two L-poles adjacent to the leakage protection pole, but the third operation mechanism does not move. When a leakage fault occurs, by means of the connecting rod, the third operation mechanism drives the operation mechanisms of the two adjacent L-poles to rotate together in the switch-off direction. In the present invention, a leakage protection pole is connected to two adjacent L-poles in a linkage manner by means of a connecting rod, thereby improving the degree of coordination between circuit breaker poles of a circuit breaker.
A test button loop device and a circuit breaker provided with a test button loop device. The test button loop device comprises an elastic button and a conductive piece that form a test loop; the elastic button comprises a contact portion cooperating with the conductive piece, and a button piece pressing the contact portion; the conductive piece is in linkage with a handle mechanism or an operating mechanism or a moving contact of a circuit breaker; when the circuit breaker is closed, the handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive piece to be close to the contact portion, and at this time, the button piece is pressed to drive the contact portion to move to be in contact with the conductive piece so as to conduct the test loop; and during opening, the handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive piece to be far away from the contact portion, and at this time, the button piece is pressed to drive the contact portion to move, so that the contact portion cannot be in contact with the conductive piece. The test loop of the present invention is only provided with one breakpoint formed by the contact portion and the conductive piece, but has the protection effect of a double-breakpoint structure, prevents the problem of electrification after opening caused by reverse wiring, and also has the advantages of being simple in structure, high in assembly efficiency, and high in reliability.
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H01H 13/02 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch Details
An air blast tripping mechanism and a circuit breaker. The air blast tripping mechanism is driven by air in an arc extinguishing system to trigger an operating mechanism to trip. The air blast tripping mechanism comprises a shell and a push rod rotationally connected to the shell, wherein the shell is provided with a sealing cavity with an air blast channel; the air blast channel is sealed and covered by an insulating partition plate; the air can blow the insulating partition plate to enter the sealing cavity; the push rod comprises a rotation arm and a reset arm, which are integrally arranged; the rotation arm is rotationally connected to one side of the sealing cavity; one end of the rotation arm is provided with an operating portion opposite the operating mechanism of the circuit breaker, and the other end of the rotation arm is provided with an air blast end; the air blast end extends into the sealing cavity, is located on one side of the insulating partition plate, and can drive the rotation arm to rotate under the action of the air; and the elastic reset arm is arranged on one side of the rotation arm, and is used to drive the push rod to reset. After the push rod in the present invention triggers the operating mechanism to complete tripping, the push rod is reset by the reset arm and the shell in a fitting manner. The air blast tripping mechanism has the advantages of a simple structure, a high fitting degree and low costs.
A thermal overload relay, comprising a shell, and a main circuit, a heating protection system, an operating mechanism and a control circuit, which are respectively arranged inside the shell, wherein a first straight-through line is arranged in the shell, a wire intake end of the main circuit is provided with a wire intake end lead portion that extends out of the shell, and the first straight-through line comprises a first contact portion which is connected to the control circuit, and a first lead portion which extends out of the shell; one end of the first straight-through line is connected to the control circuit; the first lead portion and the wire intake end lead portion of the main circuit are arranged on the same side of the shell for connecting a coil of a contactor; and the heating protection system triggers the operating mechanism in the case of an overload, and the operating mechanism acts to drive the control circuit to cut off the power supply of the first straight-through line. By means of setting, inside the shell, the first straight-through line to be connected to the control circuit, the control circuit is directly connected to the coil of the contactor by means of the first straight-through line, such that the wiring steps can be reduced, and no additional wiring needs to be performed for the control circuit, thus making same have the characteristics of convenient wiring.
A plug-in circuit breaker that includes a circuit breaker housing, and a locking mechanism, an unlocking mechanism, and a button mechanism all arranged inside the circuit breaker housing, and an operating mechanism connected to the button mechanism to drive the circuit breaker to switch on/switch off; the locking mechanism includes a first locking member with one end protruding outside the circuit breaker housing, and the circuit breaker housing comprises a locking member opening co-operated with the first locking member; the unlocking mechanism includes an independent pulling member drivingly co-operated with the first locking member, when the circuit breaker is in the switch-off state, one end of the first locking member protrudes outside the circuit breaker housing from the locking member opening, and pulling the pulling member enables the first locking member to retract into the inside of the circuit breaker housing.
A circuit breaker that includes a circuit breaker housing, a button mechanism arranged inside the circuit breaker housing, an operating mechanism connected with the button mechanism, a movable contact connected with the operating mechanism, a static contact co-operated with the movable contact, the button mechanism being operable to enable the circuit breaker to switch on/switch off by means of the operating mechanism; the circuit breaker also includes an electric mechanism arranged inside the circuit breaker housing, the electric mechanism is drivingly co-operated with the button mechanism or the operating mechanism, the electric mechanism can actuate the circuit breaker to switch on/switch off by means of the operating mechanism, or the electric mechanism can actuate the circuit breaker to switch on/switch off by means of the cooperation of the button mechanism.
A circuit breaker with a circuit breaker housing that includes a switch-on button hole and a switch-off button hole, a button mechanism that includes a switch-on button and a switch-off button, the switch-on button including a switch-on button operating end slidably arranged in the said switch-on button hole, the switch-off button including a switch-off button operating end slidably arranged in the switch-off button hole. While the switch-on button operating end is being pressed toward the inside of the circuit breaker housing to enable the circuit breaker to switch on, the switch-off button operating end moves toward the outside of the circuit breaker housing, and while the switch-off button operating end is being pressed toward the inside of the circuit breaker housing to enable the circuit breaker to switch off, the switch-on button operating end moves toward the outside of the circuit breaker housing.
A delay characteristic check method for a bimetallic switch. The method comprises a trip travel pre-adjustment operation and a trip point check operation. The method is suitable for automated operation, and has a high check pass rate and high efficiency. A delay characteristic check method for a relay. The method comprises operations such as a primary pre-adjustment, a trip point check and a secondary pre-adjustment. The method is suitable for automated operation, and has a high check pass rate and high efficiency. A delay characteristic check apparatus for a relay to which apparatus a delay characteristic check method for a relay is applied. By means of the apparatus, the automated and fast checking of a delay characteristic of a relay is realized.
An electric operating device for a circuit breaker that includes a housing, a transmission mechanism is installed in the housing, and a side wall of the housing serves as an operation surface and is provided with a first sliding groove communicated with the interior of the housing; a sliding rod is installed in the housing; a driving member controlled by the transmission mechanism is installed on the sliding rod; the driving member is provided with a closing operation portion and an opening operation portion; the driving member passes through the first sliding groove and extends out of the housing; the driving member moves along the sliding rod under the control of the transmission mechanism; and the closing operation portion and the opening operation portion operate a handle of the circuit breaker to be closed and opened respectively.
A plug-in circuit breaker that includes a housing, an operating mechanism and a button mechanism which has a closing position and an opening position. The circuit breaker further includes a locking member and a linkage member arranged inside the housing. The linkage member is provided with an abutting protruding stand. The locking member is provided with a locking protruding stand. When the button mechanism is in the closing position, the abutting protruding stand of the linkage member extends out of the housing and is limited by the button mechanism at an extension position, so that it cannot retract into the housing. When the button mechanism is in the opening position, the linkage member retracts into the housing, the locking protruding stand of the locking member extends out of the housing, and the locking protruding stand of the locking member can be pushed back into the housing.
A plug-in circuit breaker that includes a circuit breaker housing with a limiting hole and a opening and closing button. The circuit breaker further includes a locking member rotatably arranged inside the circuit breaker housing with an upper portion close to the limiting hole provided with a locking protrusion fitting. A lower portion of the circuit breaker housing is provided with a locking driving surface fitting with the opening and closing button. When the limiting hole is not shielded, the opening and closing button jacks up the locking driving surface to enable the locking protrusion to extend out of the limiting hole. The plug-in circuit breaker is closed when the limiting hole is shielded, so that the locking protrusion cannot extend out of the limiting hole. The locking driving surface limits the opening and closing button, so that the opening and closing button cannot press to the destined position.
A plug-in circuit breaker that includes a housing with a limiting hole, a button mechanism having a closing position and an opening position, and an operating mechanism actuated by the button mechanism. The plug-in circuit breaker includes a locking member arranged inside the housing. The locking member has a locking protruding stand opposite the limiting hole. When the button mechanism is in the closing position, the locking protruding stand of the locking member extends out of the limiting hole and limited by the button mechanism. When the button mechanism is in the opening position, the locking protruding stand of the locking member extends out of the limiting hole to apply an external force on the locking member for retraction. The locking protruding stand of the locking member can retract into the housing, and the locking member limits the button mechanism to perform the closing operation.
A plug-in circuit breaker with an operating button that includes a button inner end inserted inside the circuit breaker and a button outer end. An indicator slot is arranged inside the operating button, an indicating hole is arranged on the button outer end. The plug-in circuit breaker further includes an indicating member slidably inserted inside the indicator slot and one end of which is provided with a make-contact indicating surface and a break-contact indicating surface. When the plug-in circuit breaker is in a break-contact state, the break-contact indicating surface is arranged opposite to the indicating hole, thus during pressing the operating button, the indicating member moves inside the indicator slot. After the make-contact state, the make-contact indicating surface is arranged opposite to the indicating hole. The indicating member is arranged inside the operating button to save space and to indicate the break-contact and make-contact state through the indicating hole.
H01R 13/641 - Means for preventing, inhibiting or avoiding incorrect coupling by indicating incorrect couplingMeans for preventing, inhibiting or avoiding incorrect coupling by indicating correct or full engagement
43.
COMPOUND DISPERSANT AND PREPARATION METHOD, AND MIXED ELECTROPLATING SOLUTION AND PREPARATION METHOD
The present invention relates to the technical field of materials, and in particular, to a compound dispersant, which is composed of distilled water, a nonionic surfactant, an anionic surfactant, and a wetting agent; the nonionic surfactant is a Tween compound, the anionic surfactant is a hydrocarbyl sulfonate compound, and the wetting agent is an amide compound. The compound dispersant can block or slow down the agglomeration of graphene in a dispersion. The present invention also relates to a preparation method for a compound dispersant. The preparation method is used for preparing the compound dispersant, and is simple to operate. The present invention also relates to a mixed electroplating solution comprising the compound dispersant. The graphene in the mixed electroplating solution is dispersed evenly and stably. The present invention also relates to a preparation method for a mixed electroplating solution. The graphene in the prepared mixed electroplating solution is dispersed evenly and stably.
The present invention relates to the technical field of materials, and in particular to a composite dispersant, which consists of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween-type compound, and the anionic surfactant is a hydrocarbyl sulfate compound. The composite dispersant is capable of blocking or slowing down the agglomeration of graphene in a dispersion. The present invention further relates to a preparation method for the composite dispersant, which is simple in operation. The present invention further relates to a mixed electroplating solution comprising the composite dispersant, wherein graphene is uniformly and stably dispersed. The present invention further relates to a method for preparing the mixed electroplating solution. Graphene is uniformly and stably distributed in the prepared mixed electroplating solution.
The present invention relates to the technical field of materials, and in particular, to a compound dispersant, which is composed of distilled water, a nonionic surfactant, and a wetting agent; the nonionic surfactant is a Tween compound, and the wetting agent comprises a hydrocarbyl sulfate compound and a hydrocarbyl sulfonate compound. The compound dispersant can effectively block or slow down the agglomeration of graphene in a dispersion. The present invention also relates to a preparation method for a compound dispersant. The preparation method is simple to operate, and the prepared compound dispersant can effectively block or slow down the agglomeration of graphene in a dispersion. The present invention also relates to a mixed electroplating solution comprising the compound dispersant. The graphene in the mixed electroplating solution is dispersed evenly and stably. The present invention also relates to a preparation method for a mixed electroplating solution. The preparation method is simple to operate, and the graphene in the prepared mixed electroplating solution is dispersed evenly and stably.
A miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, an operating mechanism, a moving contact, and a static contact, wherein the operating mechanism includes a supporting member, a buckle member, a catch member, and a switching-off rod, the switching-off rod includes a switching-off rod connecting end and a switching-off rod driving end.
A miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, and an indicating apparatus. The circuit breaker housing includes an indicating hole arranged in one side thereof, the button mechanism is in sliding fit with the circuit breaker housing, the indicating apparatus is in driving fit with the button mechanism, and when the button mechanism is pressed to switch on the miniature circuit breaker, the button mechanism drives the indicating apparatus to shield the indicating hole. The indicating apparatus thereof may indicate a switching-on state of the circuit breaker when the circuit breaker is switched on, thus improving a safety of electricity consumption.
A miniature circuit breaker, which includes a button mechanism, a circuit breaker housing, and a locking mechanism, wherein the button mechanism is arranged at one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing, the locking mechanism includes a second locking member, the second locking member is pivotally arranged on the circuit breaker housing, the circuit breaker housing includes a second opening hole arranged on one side thereof, one end of the second locking member is in driving fit with the button mechanism, and the other end of the second locking member passes through the second opening hole and is in limit fit with a housing at an assembly position of the circuit breaker.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software applications, downloadable;
intercommunication apparatus; cables, electric; wires,
electric; rheostats; transformers [electricity]; circuit
breakers; switches, electric; converters, electric; electric
power converters; electrical controlling devices;
distribution boxes [electricity]; voltage surge protectors;
high and low voltage switch board, namely, voltage
regulators, voltage monitor modules; theft prevention
installations, electric; locks, electric; video monitors;
counters; measuring instruments; semi-conductors; integrated
circuits; electric apparatus for commutation; lightning
arresters; batteries, electric; solar panels for the
production of electricity.
The present invention relates to the field of low voltage electrical devices, and specifically involves a plastic case circuit breaker, which comprises a circuit breaker body and an electric operating apparatus, the circuit breaker body comprises an operating mechanism, and the operating mechanism comprises a handle which drivingly cooperates with the electric operating apparatus; the electric operating apparatus comprises a rotatably-configured rotary disk as well as a protruding wheel, a slide block, and a slide rail for positionally restricting and guiding the slide block, all of which are arranged on the rotary disk; the slide block comprises a slide block driven slot and a slide block drive slot, the protruding wheel drivingly cooperates with the slide block driven slot, and the handle is inserted within the slide block drive slot; the rotary disk rotates and drives the slide block to move back and forth along the slide rail by means of the protruding wheel, and the slide block drives the handle to swing by means of the slide block drive slot, causing the plastic case circuit breaker to close/open; the plastic case circuit breaker of the present invention has a slide block structure that is simple, sturdy, and reliable, which can significantly improve the reliability of the electric operating apparatus.
A handle of a manual operation mechanism of a circuit breaker, which includes an operating handle, a padlock device, and a locking shaft, wherein a middle of the padlock device is pivotally arranged on the operating handle, a front end of the padlock device is connected with the locking shaft, the padlock device is connected with the operating handle through a first driving member, a rear end of the padlock device is in limit fit with a locking mechanism, a padlock hole is arranged in the rear end of the padlock device, and the padlock hole is shielded by the operating handle.
A miniature circuit breaker, which includes a button mechanism, a circuit breaker housing, and an anti-switching-on mechanism, wherein the button mechanism is arrange at one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing, the anti-switching-on mechanism includes a first locking member, the first locking member is pivotally arranged on the circuit breaker housing, one end of the first locking member is in locking fit with the button mechanism to prevent the button mechanism from moving towards a switching-on direction, and after the miniature circuit breaker is installed to an installed position for the circuit breaker, an external housing of the installed position for the circuit breaker acts on the first locking member, so that after the first locking member is unlocked from the button mechanism, the button mechanism is capable of moving towards the switching-on direction for a switching-on operation.
A plug-in circuit breaker in the field of low voltage electrical appliances, comprising a circuit breaker outer shell (1) and a locking mechanism, an unlocking mechanism, a button mechanism (2), and an operating mechanism connected to the button mechanism (2) arranged in the circuit breaker outer shell (1); operating the button mechanism (2) can drive the closing/breaking of the circuit breaker by means of the operating mechanism; the locking mechanism comprises a first locking member (1a) with one end protruding outside the circuit breaker outer shell (1), and the circuit breaker outer shell (1) comprises a locking member hole (17) fitting to the first locking member (1a); the unlocking mechanism comprises an independent drawing mechanism (2a) having a drive fit to the first locking member (1a); when the circuit breaker is in a breaking state, one end of the first locking member (1a) extends outside the circuit breaker outer shell (1) from the locking member hole (17), and pulling the drawing member (2a) can drive the first locking member (1a) to retract inside the circuit breaker outer shell (1); the plug-in circuit breaker comprises an unlocking mechanism independent of the button mechanism (2), avoiding the occurrence of the circuit breaker being accidentally unplugged from the circuit breaker assembly position due to the breaking operation.
H01H 9/22 - Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
A circuit breaker. A circuit breaker housing (1) thereof comprises a closing button hole (110) and an opening button hole (111). A button mechanism (2) comprises a closing button (20) and an opening button (21). The closing button (20) comprises a closing button operating end slidably provided in the closing button hole (110). The opening button (21) comprises an opening button operating end slidably provided in the opening button hole (111). The closing button operating end is pressed in the direction of the interior of the circuit breaker housing (1) to drive an operating mechanism to close the circuit breaker, while the opening button operating end moves in the direction of the exterior of the circuit breaker housing (1); the opening button operating end is pressed in the direction of the interior of the circuit breaker housing (1) to drive the operating mechanism to open the circuit breaker, while the closing button operating end moves in the direction of the exterior of the circuit breaker housing (1). The circuit breaker is capable of determining the open/closed state of the circuit breaker by observing the state of the buttons (20 and 21). The closing button operating end and the opening button operating end respectively are provided in the closing button hole (110) and the opening button hole (111), thus preventing inadvertent operation of the circuit breaker due to contact by accident.
A circuit breaker, which comprises a circuit breaker housing (1), a button mechanism (2) disposed within the circuit breaker housing (1), an operating mechanism connected to the button mechanism (2), a moving contact (60) connected to the operating mechanism, and a static contact (61) used cooperatively with the moving contact (60). Operating the button mechanism (2) can, by means of the operating mechanism, drive the circuit breaker to switch on and off. The circuit breaker also comprises an electric mechanism (2c) disposed within the circuit breaker housing (1). The electric mechanism (2c) is in driving cooperation with the button mechanism (2) or the operating mechanism, can drive, by means of the operating mechanism, the circuit breaker to switch on/off, or can drive, by means of the button mechanism (2), the circuit breaker to switch on/off. The electric mechanism (2c) of the circuit breaker achieves the remote control of the circuit breaker.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Downloadable computer application software for mobile phones, namely, software for use in database management, use in electronic storage of data; Intercommunication apparatus, namely, intercoms; Intercommunication apparatus, namely, telephones; Intercommunication apparatus, namely, a smart wireless access point (WAP) devices; Intercommunication apparatus, namely, radio transmitters, cellular telephones, wireless fidelity and computers; Electric cables; Wires, electric; Rheostats; Electric transformers; Circuit breakers; Optical switches; Power switches; Electromagnetic switches; Electric converters; Electric power converters; Electric control panels; Electric current control devices; Distribution boxes for electrical power; Voltage surge protectors; Electronic components in the nature of high and low voltage switch board; Theft prevention installations, electric, namely, burglar alarms; Theft prevention installations, electric, namely, anti-intrusion alarms; Electronic door locks; Electric locks for vehicles; Video monitors; Geiger counters; Particle counters for measuring air quality; Thread counters; Radiation detectors; Electric joint meters being measuring instruments; Meters for measuring electrical resistance; Voltmeters; Semi-conductors; Integrated circuits; Electric apparatus for commutation, namely, commutators; Electric apparatus for commutation, namely, electric current switches; Lightning arresters; Electric storage batteries; Batteries for cell phones; Electric batteries for vehicles; Solar batteries; Solar panels for the production of electricity.
A miniature circuit breaker, comprising a housing and a handle. An overload protection device and an operating mechanism which is connected to a moving contact are provided in the housing; the overload protection device comprises a temperature control assembly provided with a bimetallic strip; the side in the housing close to the moving contact is provided with an incoming line connecting terminal connected to the moving contact; a stationary contact matching the moving contact is provided on one side of the moving contact, and the temperature control assembly is provided on the other side of the moving contact; when overload, the temperature control assembly drives a temperature control protection device provided in the housing to trigger the circuit breaker to trip; the temperature control protection device comprises a separation plate and a thermal trip rod; the separation plate separates the moving contact and the thermal trip rod in two different planes; the temperature control assembly comprises the bimetallic strip and a current-carrying conductor; when the circuit breaker is overloaded, a movable end of the bimetallic strip drives the thermal trip rod to rotate to trigger the circuit breaker to trip. The present utility model reduces the length of the current-carrying conductor of the temperature control assembly, decreases the internal resistance and reduces heat generation, and avoids damage to parts caused by excessive temperature rise of the temperature control assembly.
A circuit breaker, comprising a residual current analysis and comparison circuit and an actuating mechanism. An electronic detection circuit, an electromagnetic residual current detection circuit, and a driving circuit are comprised; the electronic detection circuit comprises a working power supply and a detection circuit; the detection circuit comprises an electronic residual current detection circuit, a processing circuit, and a comparison circuit; the electronic residual current detection circuit acquires a fault signal and converts same into a sampled output signal; the processing circuit amplifies the received sampled output signal to form a preprocessed signal; the comparison circuit receives the preprocessed signal and compares same with a set threshold, and the comparison circuit outputs the fault signal and controls the driving circuit to make the actuating mechanism operate to trip the circuit breaker; the electromagnetic residual current detection circuit is used for an electromagnetic residual current fault monitor to monitor a circuit, and the electromagnetic residual current detection circuit makes the actuating mechanism operate to trip the circuit breaker. The circuit breaker in the present invention has two detection circuits that can work together and do not interfere with each other.
H02H 3/14 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to occurrence of voltage on parts normally at earth potential
H02H 3/32 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to difference between voltages or between currentsEmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
An electric operating device for a circuit breaker, comprising a housing (1). A transmission mechanism is mounted in the housing (1); a side wall of the housing (1) is used as an operating surface (11) and provided with a first sliding groove (101) communicated with the interior of the housing (1); a sliding rod (102) is mounted in the housing (1); a driving member controlled by the transmission mechanism is mounted on the sliding rod (102); the driving member is provided with a closing operation portion (31a) and an opening operation portion (31b); the driving member passes through the first sliding groove (101) to extend out of the housing (1); the driving member moves along the sliding rod (102) under the control of the transmission mechanism; the closing operation portion (31a) and the opening operation portion (31b) operate a handle (5) of a circuit breaker to close and open, respectively. According to the electric operating device for a circuit breaker, the sliding rod (102) for providing a moving path for the driving member is mounted in the housing (1), so that the driving member operates closing and opening of a circuit breaker by means of the closing operation portion (31a) and the opening operation portion (31b) in the process of moving along the sliding rod (102); moreover, the closing operation portion (31a) and the opening operation portion (31b) can be widened according to the number of handles (5) of circuit breakers, so that one electric operating device can operate the handles (5) of multiple circuit breakers.
A circuit breaker, comprising a housing assembly, and a contact system, an electric leakage protection mechanism and an electric leakage test mechanism arranged inside the housing assembly. The contact system comprises a handle (21), a contact terminal mechanism and an operation mechanism (23). When the circuit breaker is switched on or switched off, the operation mechanism (23) is driven by means of the handle (21) to close or cut off the contact terminal mechanism. The electric leakage test mechanism comprises an electric leakage test button (50), and an electric leakage test loop cooperating with a zero-sequence current transformer (41) of the electric leakage protection mechanism. The electric leakage test loop comprises a first test contact point (T1) cooperating with the electric leakage test button (50), and a second test contact point (T2) cooperating with the contact system, wherein the second test contact point remains closed, and the contact system cuts off the second test contact point (T2) when the circuit breaker is switched off; and the contact system avoids the second test contact point (T2) when the circuit breaker is switched on, such that the second test contact point (T2) is reset and remains closed. Therefore, contact terminal parameters of the contact terminal mechanism are not affected, thereby ensuring the contact terminal pressure of the contact terminal mechanism during switching on thereof.
H01H 83/04 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
A plug-in circuit breaker, comprising a shell, a button mechanism, and an operating mechanism. The button mechanism drives the operating mechanism to execute closing/opening, the button mechanism has a closing position and an opening position, the shell is formed with a limiting hole, the circuit breaker further comprises a locking piece arranged in the shell, and the locking piece is provided with a locking boss arranged corresponding to the limiting hole; when the button mechanism is located at the closing position, the locking boss of the locking piece extends out of the limiting hole and is limited by the button mechanism and cannot return back to the shell; when the button mechanism is located at the opening position, the locking boss of the locking piece extends out of the limiting hole, an external force is applied to the locking piece, the locking boss of the locking piece can return back to the shell, and the locking piece limits the button mechanism to perform a closing operation, so that the circuit breaker cannot complete a closing action. Plug and unplug of the circuit breaker in a closed state and closing of the circuit breaker in a mounting process can be prevented, the structure is simple, and the reliability is high.
A plug-in circuit breaker, comprising a circuit breaker housing provided with a limiting hole, an opening/closing button, and a locking member. The locking member is rotatably mounted in the circuit breaker housing. The upper part of the locking member close to the limiting hole is provided with a locking protrusion matching the limiting hole, and the lower part of the locking member is provided with a locking driving surface matching the opening/closing button. Pressing the opening/closing button, the opening/closing button pushes the locking driving surface of the locking member, and drives the locking protrusion of the locking member to rotate toward the limiting hole of the circuit breaker housing; when the limiting hole is not blocked, the opening/closing button pushes up the locking driving surface to make the locking protrusion stretch out from the limiting hole and close the plug-in circuit breaker; when the limiting hole is blocked and thus the locking protrusion cannot stretch out from the limiting hole, the locking driving surface limits the opening/closing button so that the opening/closing button cannot be pressed in place, and the plug-in circuit breaker cannot be closed. By means of cooperation of a locking member and an opening/closing button, multiple locking functions are implemented, and the structure is simple and the cost is low.
A plug-in circuit breaker in the field of low-voltage apparatus, one end of an operation button (1d) of a protection electrode of the plug-in circuit breaker is inserted into a circuit breaker shell, the operation button (1d) and a first wire outlet terminal (11) and a first wire inlet terminal (110) are arranged at the two ends of the circuit breaker shell respectively, an operation mechanism (3) and a protection mechanism (4) are arranged in the middle of a protection electrode assembly cavity side by side and are positioned between the operation button (1d) and an arc extinguishing system (5) and between the first wire outlet terminal (11) and the arc extinguishing system (5) respectively; when the plug-in circuit breaker is in a closing state, the operation mechanism (3) is in a locking and fastening state, a short circuit state or an overload state occurs, the protection mechanism (4) drives the operation mechanism (3) to trip, the plug-in circuit breaker trips and the operation mechanism (3) enters a tripping state, the operation button (1d) is pulled to drive the operation mechanism (3) to recover the locking and fastening state, and the plug-in circuit breaker enters a breaking state; or the plug-in circuit breaker is enabled to enter the breaking state, and after a fault is eliminated, the operation button (1d) is pressed to drive the operation mechanism (3) to act such that the plug-in circuit breaker is enabled to enter the closing state. The plug-in circuit breaker is compact in structure and small in size.
The present invention relates to the field of low-voltage electrical appliances, and in particular, to an insertion type circuit breaker. An operation button of the insertion type circuit breaker comprises an inner button end inserted in a circuit breaker housing, and an outer button end, and is provided with an indicating member slot. An indicating hole is provided on the outer button end. The insertion type circuit breaker further comprises an indicating member slidably inserted in the indicating member slot and of which one end is provided with a closing indicating surface and an opening indicating surface. When the insertion type circuit breaker is in an opening state, the opening indicating surface is provided opposite the indicating hole, the operation button is pressed, and the indicating member moves in the indicating member slot. After closing, the closing indicating surface is provided opposite the indicating hole, the operation button is pulled, and the indicating member moves in the indicating member slot. After opening, the opening indicating surface is provided opposite the indicating hole. According to the present invention, the indicating member of the insertion type circuit breaker is located in the operation button, which saves the assembly space inside the housing. The indicating member can intuitively indicate the opening/closing state by means of the indicating hole, which makes it convenient to observe.
A plug-in circuit breaker, comprising a housing, a button mechanism, and an operation mechanism, wherein the button mechanism has a closing position and an opening position which correspond to a closing/opening state of the circuit breaker. The circuit breaker further comprises a linkage piece and a locking piece which are provided in the housing; the linkage piece is provided with an abutting boss, and the locking piece is provided with a locking boss; when the button mechanism is located at the closing position, the abutting boss of the linkage piece extends out of the housing and is limited at an extending position by the button mechanism so that the abutting boss cannot return back to the housing; and when the button mechanism is at the opening position, the linkage piece returns back to the housing, the locking boss of the locking piece extends out of the housing and can be pushed by an retraction external force to return back to the housing, so that closing plugging and unplugging can be reliably prevented, the risk of hot-line operation is avoided, and the circuit breaker can be protected from falling out of a cabinet due to vibration in a process of transportation and the like.
A method for establishing a wireless communication connection in a prepaid reclosing circuit breaker device. The prepaid reclosing circuit breaker device comprises a circuit breaker and a prepay module. The circuit breaker comprises a first MCU circuit, an operation mechanism, a contact system, and a first wireless communication module connected to the first MCU circuit. The control module comprises a second MCU circuit, a second wireless communication module connected to the second MCU circuit, and a reclosing drive mechanism. Both the first wireless communication module and the second wireless communication module are WIFI communication modules. The first wireless communication module establishes a wireless communication connection between the first wireless communication module and the second wireless communication module according to a unique device name and verification code of the control module, or the control module establishes a wireless communication connection between the control module and the first wireless communication module according to a unique device name and verification code of the circuit breaker. The invention simplifies the structure of the prepaid reclosing circuit breaker device, and facilitates assembly and maintenance.
H04W 4/70 - Services for machine-to-machine communication [M2M] or machine type communication [MTC]
G07F 15/06 - Coin-freed apparatus with meter-controlled dispensing of liquid, gas, or electricity with means for prepaying basic charges, e.g. rent for meters
A drawer type circuit breaker comprises a drawer base and a circuit breaker body, wherein the circuit breaker body is rocked into and out of the drawer base, so that a main circuit of the circuit breaker body and the drawer base is switched on and switched off; a safety baffle is provided between the drawer base and the circuit breaker body to block a drawer base busbar or a bridge type contact of the drawer base; and a front-rear displacement device for the safety baffle to move toward a movement direction of the drawer base is provided on the safety baffle and the drawer base. According to the drawer type circuit breaker of the present invention, the front-rear displacement device is provided on the safety baffle and the drawer base, the safety baffle is displaceable front and back, and the drawer base busbar may penetrate out of the safety baffle. The bridge contact can be mounted either on the drawer base or on the body, such that the mounting position of the bridge type contact is more flexible, and the connection of the main circuit is more stable and reliable.
A plug-in miniature circuit breaker, an operating mechanism thereof comprising an operating member (1) with one end inserted into a shell (6) and the other end protruding outside the shell, a contact system comprising a moving contact (900c) with one end connected to the operating mechanism and a static contact (910c) used in conjunction with the moving contact; the shell comprises an open/closed indicating window (62a) arranged thereupon; also comprising an open/closed indicating member (2) arranged in the shell and being used for indicating the open/closed state of the plug-in miniature circuit breaker, the open/closed indicating member being arranged on one side of the operating member and being linked to same; pressing the operating member makes the plug-in miniature circuit breaker enter a closed state by means of the operating mechanism, and makes the open/closed indicating member move, the closed state of the plug-in miniature circuit breaker being indicated by means of the open/closed indicating window; the open/closed indicating member of the plug-in miniature circuit breaker is arranged on one side of the operating member and cooperates with the open/closed indicating window on the shell, and is capable of visually and clearly indicating the open/closed state of the circuit breaker.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software applications, downloadable;
intercommunication apparatus; video monitor; counters;
measuring instruments; cables, electric; wires, electric;
semi-conductors; integrated circuits; rheostats;
transformers [electricity]; circuit breakers; switches,
electric; converters, electric; electric power converters;
electric control device; power distribution boxes; voltage
surge protectors; high and low voltage switch board;
electric apparatus for commutation; lightning rods; theft
prevention installations, electric; locks, electric;
batteries, electric; solar panels for the production of
electricity.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer peripheral devices; time clocks being time recording devices; cash registers; mechanisms for coin-operated apparatus; fuel dispensing pumps for service stations; electronic tags for goods; facsimile machines; weighing machines; tape measures; electronic notice boards; navigation apparatus for vehicles in the nature of on-board computers; sound recording carriers, namely, blank magnetic data carrier; drying apparatus for photographic prints; measuring instruments, namely, lasers for measuring, gravity measuring instruments, gasometers; distance recording apparatus; voltage regulators for vehicles; gas testing instruments; audiovisual teaching apparatus, namely, overhead projectors, audiovisual receivers; measuring devices, electric, namely, lasers for measuring, electronic devices for measuring electric current; probes for scientific purposes; instruments containing eyepieces, namely, microscopes, cameras, telescopes; wires, electric; semi-conductors; integrated circuits; electromagnetic coils; electric transformers; fluorescent screens; remote control apparatus, namely, electronic key fobs being remote control apparatus, remote controls for radios, televisions, stereos, mechanical remote controls for motors; optical fibers being light conducting filaments; electric apparatus for remote ignition, namely, remote control starters for vehicles; lightning arresters; electrolysers; fire extinguishing apparatus; welding apparatus, electric, namely, welding transformers, welding masks, welding helmets; radiological apparatus for industrial purposes, namely, x-ray apparatus not for medical purposes but for industrial purposes; life saving apparatus and equipment, namely, life saving rafts, life boats, life jackets for pets; theft prevention installations, electric, namely, electric alarm bells, burglar alarms, alarm monitoring systems; spectacles; accumulators, electric; photographic slides; door openers, electric; socks, electrically heated; electricity inverters, photovoltaic (PV) inverters, energy storage inverters
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software applications, downloadable, for use in database management, for use as a spreadsheet, and for word processing; intercommunication apparatus, namely, computers, telephones, and facsimile apparatus; video monitors; counters, namely, electricity meters, water meters, gas meters, electrical energy utilization meters, noise level meters, temperature meters not for medical use, panel meters, namely, an electronic instrument that displays an input signal in either a digital or analog form; measuring instruments, namely, measuring rulers, resistance measuring instruments, and instruments for measuring length; cables, electric; wires, electric; semi-conductors; integrated circuits; rheostats; electrical transformers; circuit breakers; switches, electric; converters, electric; electric power converters; electric control device, namely, electric control panels, electrical controllers; electrical power distribution boxes; voltage surge protectors; high and low voltage switch board, namely, voltage regulators, voltage monitor modules; electric apparatus for commutation being commutators; lightning rods; theft prevention installations, electric, namely, theft alarms; locks, electric; batteries, electric; solar panels for the production of electricity
A compact circuit breaker comprises a housing (2), a button mechanism (1) and an indication device. The housing (2) has an indication hole (201) arranged at one side thereof. The button mechanism (1) is slidably engaged with the housing (2). The button mechanism (1) is engaged with and used to drive the indication device. When pressed to cause the compact circuit breaker to close, the button mechanism (1) drives the indication device to conceal the indication hole (201). The indication device of the compact circuit breaker can indicate a closing state of the circuit breaker when the circuit breaker closes, thereby enhancing electricity usage safety.
A miniature circuit breaker, relating to the field of low-voltage electrical appliances. The miniature circuit breaker comprises a button mechanism (1), a circuit breaker shell (2), and an anti-closing mechanism; the button mechanism (1) is provided at one end of the circuit breaker shell (2) and slidably fits the circuit breaker shell; the anti-closing mechanism comprises a first locking member (3); the first locking member (3) is pivotally provided on the circuit breaker shell (2); one end of the first locking member (3) is in locking fit with the button mechanism (1) to stop the button mechanism (1) from moving towards a closing direction; after the miniature circuit breaker is assembled to a circuit breaker assembly position and mounted in place, the shell at the circuit breaker assembly position acts on the first locking member (3), so that after the first locking member (3) is released from the locking fit with the button mechanism (1), the button mechanism (1) can move towards the closing direction to perform a closing operation. The anti-closing mechanism of the miniature circuit breaker ensures that the circuit breaker can be closed only after being assembled to the circuit breaker position and mounted in place, and ensures the use safety.
The present invention relates to the field of low-voltage electrical appliances, in particular to a miniature circuit breaker, comprising a circuit breaker housing, a button mechanism, an operating mechanism, a movable contact, and a static contact. The operating mechanism comprises a support member, a trip fastener, a lock fastener, and a trip lever. The trip lever comprises a trip lever connecting end and a trip lever driving end. When the miniature circuit breaker is in an open state, if the button mechanism is pressed, the operating mechanism is driven to operate, the operating mechanism drives the movable contact and the static contact to be closed, and the trip lever driving end moves to a position matched with the trip fastener; if the button mechanism is pressed again, the trip lever driving end of the trip lever drives the trip fastener to rotate to enable the trip fastener and the lock fastener to be released from the locking fit, the operating mechanism operates and drives the movable contact to be separated from the static contact, so that the miniature circuit breaker enters the opening state, and the trip lever is reset to an initial position at the same time. The opening/closing operation of the miniature circuit breaker can be achieved by pressing the button mechanism.
The present invention relates to the field of low-voltage electric appliances, in particular to a miniature circuit breaker. The miniature circuit breaker comprises a button mechanism, a circuit breaker housing, and a locking mechanism. The button mechanism is disposed on one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing; the locking mechanism comprises a second locking piece, which is pivotally disposed on the circuit breaker housing; the circuit breaker housing comprises a second opening hole formed in one side of the circuit breaker housing; one end of the second locking piece is in driving fit with the button mechanism, and the other end penetrates through the second opening hole to be in limiting fit with the housing at the assembling position of the circuit breaker; when the button mechanism is pulled out of the circuit breaker housing, the button mechanism drives the second locking piece to rotate, so that the limiting match between the second locking piece and the housing at the assembling position of the circuit breaker is released. According to the miniature circuit breaker provided by the present invention, a reliable limiting fit is formed between the locking mechanism and the housing at the assembly position of the circuit breaker, so that the stability and the reliability of the assembly of the miniature circuit breaker are ensured.
An electromagnetic tripping device and a circuit breaker using same, relating to the field of low-voltage appliances. One end of a magnetic yoke (9) of the electromagnetic tripping device is connected to a temperature sensing connecting plate (1), and the other end thereof fits an armature (11); the middle of the armature (11) is pivotally arranged; a tripping rod (12) is in latching engagement with a tripping latch (2) of the circuit breaker; when a short circuit current flows through the temperature sensing connecting plate (1), a first armature arm (112) is attracted to swing to the magnetic yoke (9), so that a second armature arm (111) drives the tripping rod (12) to release the latching engagement with the tripping latch (2), and thus the circuit breaker is opened, and a counter-force spring (6) is configured to reset the armature (11); an armature support (8) is further comprised; one end of the armature support (8) is arranged on the temperature sensing connecting plate (1); the middle of the armature (11) is pivotally connected to the armature support (8); the armature support (8) comprises a magnetic gap adjusting screw (7); the magnetic gap adjusting screw (7) is arranged corresponding to and in driving connection with the second armature arm (111); the distance between the first armature arm (112) and the magnetic yoke (9) can be adjusted by screwing the magnetic gap adjusting screw (7). The electromagnetic tripping device is higher in product percent of pass, and the circuit breaker is better in action performance.
A circuit breaker, comprising a housing and a circuit breaker phase pole and a leakage protection pole provided on the two sides of the housing side by side. The leakage protection pole comprises a zero-sequence current transformer, a leakage operation mechanism, and a leakage test mechanism; a main loop of the circuit breaker phase pole passes through the zero-sequence current transformer; the leakage test mechanism comprises an elastic piece, a test button, and a first contact piece and a second contact piece respectively connected to the two ends of a test loop; one end of the elastic piece is provided with a first contact part matching the leakage operation mechanism or a phase pole operation mechanism, and the other end of the elastic piece is provided with a second contact part matching the test button; the leakage operation mechanism or the phase pole circuit breaker is capable of pushing the first contact part to make contact with the first contact piece when the circuit breaker is switched on; the test button is capable of pushing the second contact part to make contact with the second contact piece; the test mechanism forms the test loop having double breakpoints by means of two contacts of the first contact part and the second contact part on the elastic piece, and the first contact part and the second contact part are respectively driven by the leakage operation mechanism and the test button.
H01H 83/14 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
H01H 73/40 - Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by tumbler
78.
MANUAL OPERATION MECHANISM HANDLE FOR CIRCUIT BREAKER
Disclosed is a manual operation mechanism handle for a circuit breaker, the handle comprising an operation handgrip (15), a lock-up device (12), and a locking shaft (14), wherein the middle of the lock-up device (12) is pivotally arranged on the operation handgrip (15), a front end of the lock-up device (12) is connected to the locking shaft (14), the lock-up device (12) is connected to the operation handgrip (15) by means of a first driving member, a rear end of the lock-up device (12) cooperates with a locking mechanism in limiting manner, the rear end of the lock-up device (12) is provided with a lock-up hole (21), and the lock-up hole (21) is blocked by the operation handgrip (15). When the circuit breaker is in a opened state, the locking mechanism is unlocked, the first driving member enables the front end of the lock-up device (12) to move down to drive the locking shaft (14) to lock the operation handgrip (15), and at the same time, the rear end of the lock-up device (12) is raised, such that the lock-up hole (21) is released from the operation handgrip (15). The locking mechanism can realize locking of the lock-up device (12), and a user can conveniently rotate the operation handgrip (15), such that after the locking mechanism is unlocked by means of the opening/closing of the circuit breaker, the lock-up device (12) can automatically drive the locking shaft (14) to lock the operation handgrip (15).
A frequency converter, comprising a shell, and a CPU board and a power supply module provided in the shell. The power supply module comprises a capacitor plate and a power supply board which are provided as separate parts. The power supply board comprises an EMC circuit, a rectifier circuit, an inverter circuit, an output circuit, and a current sampling circuit. The EMC circuit is connected to the rectifier circuit. The capacitor plate comprises an RC circuit and a switching power supply circuit. The rectifier circuit is connected to the RC circuit. The RC circuit is connected to the inverter circuit and the switching power supply circuit. The switching power supply circuit is connected to the inverter circuit and the CPU board. The inverter circuit is connected to the output circuit. The output circuit is connected to the current sampling circuit. The current sampling circuit is connected to the CPU board. The switching power supply circuit supplies power to the inverter circuit, the current sampling circuit, and the CPU board. By splitting the power supply module having a large lateral area into the capacitor plate and the power supply board which are provided as separate parts, the space occupied by the power supply module can be reduced, and the circuit distribution is reasonable.
The present invention discloses a data transmission apparatus of a circuit breaker controller. The data transmission apparatus comprises: a first component having a first power supply and a second component having a second power supply. The first component and the second component share a storage device. The second component is connected to a main circuit of the circuit breaker controller. The second component collects parameters of the main circuit and stores the parameters in the storage device. The second power supply powers the second component and is powered by the main circuit. The first component is connected to a communication device. The first component establishes data transmission between the communication device and the storage device. The first power supply powers the first component and is powered by an external power supply. The second power supply is connected to the first power supply and transmits a control signal to the first power supply.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H01H 71/00 - Details of the protective switches or relays covered by groups
A contactor including a pedestal. The pedestal is of a step structure having notches in two ends. The step structure includes a first step and a second step from bottom to top and is covered with a cover body having a matched shape. A part, which protrudes out of the second step, at each of two ends of the first step, is provided with a first mounting groove in which a control terminal and a power terminal that are spaced apart from each other are mounted, and the cover body is provided with a first wiring port corresponding to the control terminal and a second wiring port corresponding to the power terminal. Each of two ends of the second step is provided with a second mounting groove in which an auxiliary terminal is mounted, and the cover body is provided with a third wiring port which corresponds to the auxiliary terminal mounted in the second mounting groove. The contactor has a simple structure, and wiring areas can be distinguished.
A drawer type circuit breaker, comprising a drawer base (1) and a circuit breaker body (2); the circuit breaker body (2) is pushed in and pulled out of the drawer base (1), so that the circuit breaker body (2) is connected to and separated from a main circuit of the drawer base (1); a safety baffle (3) used for blocking a drawer base bus or bridge contact of the drawer base (1) is provided between the drawer base (1) and the circuit breaker body (2); a forward-and-backward displacement device (4) used for moving the safety baffle (3) towards the motion direction of the drawer base (1) is provided on the safety baffle (3) and the drawer base (1). According to the drawer type circuit breaker, the forward-and-backward displacement device (4) is provided on the safety baffle (3) and the drawer base (1), so that the safety baffle (3) can move forward and backward; the drawer base bus can extend out of the safety baffle (3); the bridge contact can be installed on the drawer base (1), and can also be installed on the circuit breaker body (2). Therefore, the installation position of the bridge contact is more flexible, and the connection of the main circuit is more stable and reliable.
Disclosed is an external operation handle, comprising a coupling shaft connected to a switch electrical appliance and a linkage member connected to the coupling shaft, wherein the linkage member is arranged in a casing, the top side of the casing is provided with a handle member connected to the linkage member, and the bottom side of the linkage member is provided with a linkage shaft groove in a sliding fit with the coupling shaft; a linkage keyway in a sliding fit with a coupling key on the coupling shaft is arranged in the linkage shaft groove, and a movable locking member and an unlocking member connected to the locking member are arranged below the linkage member; the locking member is provided with a locking shaft hole corresponding to the linkage shaft groove, and a locking key hole corresponding to the linkage keyway is arranged in the locking shaft hole; and the unlocking member can drive the locking member to move, such that the locking key hole is offset from or overlapped with the linkage keyway. The bottom side of the linkage member is provided with the locking member that is in cooperation with the coupling key, so that a locking mechanism can lock or release, in an emergency, the coupling shaft via a simple structure, it is not necessary to process and prepare other structures on the coupling shaft, the manufacturing cost is reduced, and the reliability of the coupling shaft is also ensured.
A direct-acting electromagnetic trip device including a housing, and a regulation mechanism, a linkage mechanism, an electromagnetic system and a trip mechanism which are arranged in the housing. The regulation mechanism is connected with the linkage mechanism, the linkage mechanism is connected with one end of an iron core of the electromagnetic system, and the linkage mechanism is connected with the trip mechanism at the same time. The regulation mechanism includes a rotary knob and a regulation rod, wherein the rotary knob is abutted against and engaged with the regulation rod, and the regulation rod is abutted against and engaged with the linkage mechanism. The electromagnetic system further includes an elastic element that pushes the iron core to allow the linkage mechanism to be abutted against the regulation rod and allow the rotary knob to be abutted against the regulation rod.
H01H 75/00 - Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
H01H 71/74 - Means for adjusting the conditions under which the device will function to provide protection
An alternating current contactor comprises a base and a magnetic yoke. The magnetic yoke is mounted on a bottom plate of the base. A magnetic yoke support for supporting and buffering the magnetic yoke is respectively provided at two sides of the magnetic yoke, wherein sidewalls at two sides of each magnetic yoke support, which are connected with the magnetic yoke are different in thickness. The magnetic yoke support of the alternating current contactor of the utility model has a simple structure due to the arrangement of an asymmetric eccentric structure. The up-down position of the magnetic yoke relative to the bottom plate of the base can be adjusted by changing an assembly direction of the magnetic yoke supports, thereby achieving the purpose of adjusting the total stroke of the product with high flexibility. When a dimension of a housing of a plastic part is abnormal, the magnetic yoke has a certain adjustment amount to ensure that the integral assembly of the product can be completed and the efficiency and reliability can be improved.
A direct current (DC) fault arc detection method, including performing sampling, filtering and fast Fourier transform (FFT) on an input current of a high frequency power electronics converter, to obtain an amplitude-frequency characteristic curve of a current high frequency component; and selecting, from the amplitude-frequency characteristic curve, at least one frequency band including a switching frequency or a multiple frequency, calculating a peak value D1 of amplitudes and an average value D2 of the amplitudes within the frequency band, and determining, according to a change of a distance between the peak value D1 and the average value D2, whether an arc occurs, where if the average value D2 approaches the peak value D1, an arc occurs; otherwise, no arc occurs.
A fusion welding isolation mechanism for an operating mechanism of a circuit breaker is provided. The operating mechanism of circuit breaker includes: a tripping component, a left side, a right side plate, a latch, a half shaft, a lever, and a main shaft. The tripping component, the latch, and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The tripping component, the latch, the half shaft, the lever, and the main shaft move in linkage. The lever and the main shaft are provided with isolation devices for preventing an operation handle from an opening operation when a moving contact is subject to fusion welding.
H01H 71/64 - Manual reset mechanisms with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement incorporating toggle linkage
H01H 71/62 - Manual reset mechanisms with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
A tripping mechanism for a circuit breaker comprises a connecting rod assembly and a control assembly, wherein one end of the connecting rod assembly is connected with a rotating shaft assembly for driving the circuit breaker to be switched off in a driving manner, and the other end of the connecting rod assembly is provided with a jump pin which can be connected with the control assembly in a latching manner, and the jump pin is also provided with a U-shaped groove. The control assembly comprises a switching-off latch which is rotatably mounted. The end part of the switching-off latch can be connected with the U-shaped groove in a latching and limiting manner, and the circuit breaker triggers the end part of the switching-off latch to be tripped from the U-shaped groove when being switched off, and therefore the rotating shaft assembly connected with the connecting rod assembly drives the circuit breaker to be switched off. The tripping mechanism for the circuit breaker, which is provided by the present invention, is stable in latching, simple in structure and accurate in action.
A mounting structure for an energy storage assembly of a circuit breaker comprises an energy storage lever and an energy storage spring, wherein one end of the energy storage lever is an energy storage end which is connected with the energy storage spring, and the other end of the energy storage lever is a driving end. An external force can be applied to the driving end, such that the energy storage lever rotates around a lever fulcrum in the middle of the energy storage lever, thereby extruding the energy storage spring at the energy storage end to finish energy storage. One end of the energy storage spring is connected and mounted with the energy storage lever, and the other end of the energy storage spring is mounted in a base support. An energy storage mounting shaft which can be considered as a rotating fulcrum is also arranged in the middle of the energy storage lever. The driving end is stressed, such that the energy storage lever rotates around the energy storage mounting shaft. The mounting structure for the energy storage assembly of the circuit breaker, which is provided by the present invention, is simple in mounting process, stable in connection structure and high in assembly accuracy.
A fault state indication device for a circuit breaker includes: a contact group; and a transmission assembly and an indication assembly that are mounted inside a housing. The contact group implements a normally open contact group and a normally closed contact group. The transmission assembly acts on a contact support, different open and closed states of the contact group are realized via the contact support. The indication assembly indicates a fault state, the indication assembly is linked with the circuit breaker, and carries out a corresponding state indication in response to a fault.
An interlocking device for a circuit breaker comprises a control assembly and an interlocking assembly which are connected with each other in a driving manner. The control assembly can be connected with a connecting rod assembly and a cam assembly of an energy storage operation mechanism of the circuit breaker in a latching manner, thereby controlling the energy storage operation mechanism to finish a switching-on/switching-off operation. A switching-off latch of the control assembly is connected with the connecting rod assembly, and a switching-on latch of the control assembly is connected with the cam assembly. A switching-on guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-on latch actuates, and a switching-off guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-off latch actuates. One end of a switching-on half-shaft is connected with the switching-on latch in a driving manner, and the other end of the switching-on half-shaft and the driving guide rod face each other. The interlocking device for the circuit breaker, which is provided by the present invention, is compact in structure, accurate in control and stable in action.
An energy storage operation mechanism for a circuit breaker comprises a side plate assembly, a connecting rod assembly, a cam assembly, an energy storage assembly, a rotating shaft assembly and a control assembly. A rotatable driving shaft is mounted in the side plate assembly. The connecting rod assembly and the cam assembly are mounted on the driving shaft. The energy storage assembly and the rotating shaft assembly are mounted at one side of the driving shaft, and the control assembly is mounted at the other side of the driving shaft. The connecting rod assembly is connected with the rotating shaft assembly. The cam assembly can be in contact and connection with the energy storage assembly to push the energy storage assembly to store energy. The control assembly can be connected with the connecting rod assembly and the cam assembly in a latching manner. The energy storage operation mechanism for the circuit breaker, which is provided by the present invention, is compact in structure and high in reliability.
An indication device of an electric switch comprises an indication component (101), a driving component (103) and a positioning component (102). The indication component (101) has at least three indication positions. Each indication position corresponds to one state of the electric switch, and the indication component (101) shows one indication mark at each indication position. The indication device of electric switch uses a single indication component (101) having at least three indication positions, and the third position is provided via deformation of the indication component (101) itself, thus realizing a simple structure and low manufacturing cost.
Provided is a contactor, comprising a body housing (1) and a contact support (2); the contact support is movably mounted inside a mounting chamber (10) of the body housing; the main body (20) of the contact support is provided with a plurality of lower accommodating chambers (22), used for accommodating a dynamic contact; the plurality of lower accommodating chambers are arranged at intervals, and the side wall of the main body is provided with a plurality of position-limiting structures located between two adjacent lower accommodating chambers, the plurality of position-limiting structures fitting a plurality of insert plates (12) in the mounting chamber; an insert plate comprises a connecting end part (121) and a bending base part, connected to each other; the bending part of the insert plate is connected to the side wall of the bending base part; each position-limiting structure comprises a first position-limiting plate (25) and second position-limiting plate (26) formed by extending from the side walls of the two adjacent lower accommodating chambers, respectively; the first position-limiting plate comprises a connecting base part (251) and a bending end part, connected to each other; the connecting base part is connected to the main body and is spaced apart from the second position-limiting plate so as to form an insertion slot (27) fitting the connecting end part of the insert plate; the bending end part is arranged opposite to the insert plate. The contactor has a simple structure and good arc-isolating performance.
A two-level latch mechanism for an operation mechanism of a circuit breaker is provided. The operation mechanism includes: a tripping component, a left side plate, a right side plate, a latch, a half shaft, a lever, and a main shaft. The tripping component, the latch and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The tripping component, the latch, the half shaft, the lever, and the main shaft move in linkage. The tripping component includes a tripping buckle and a latch surface is disposed on a second end of the tripping buckle. The tripping component, the latch component and the half shaft component form a two-level latch.
A self-balancing structure capable of balancing pressing forces on a double-break contact bridge comprises a rotor support frame, a contact bridge, and two elastic pieces. The contact bridge 2 comprises: two contact ends arranged symmetrically about the center of the contact bridge; and a middle portion installed via a pivot axle on the rotor support frame. A guiding track is provided between the rotor support frame and the contact bridge, and has a length exceeding an outer diameter of the pivot axle. Two adjusting parts are arranged on an upper side and a lower side of the middle portion of the contact bridge and symmetrically about the center of the contact bridge, and operate together with the two elastic pieces. Two ends of each of the elastic pieces act on the rotor support frame and the adjusting part, respectively. An angle β is formed between a contact surface of the contact end contacting a stationary contact and a length direction of the guiding track, wherein 60° ≤ β ≤ 120°. An angle γ formed arranged between a direction of a force acting on the adjusting part of the elastic piece and the length direction of the guiding track, wherein 60° ≤ γ ≤ 120°. The self-balancing structure capable of balancing pressing forces on a double-break contact bridge in the invention is simple in structure, and can ensure reliable contact of the double-break contact bridge.
An operation mechanism of a circuit breaker includes: a tripping component; a left side plate; a right side plate; a latch; a half shaft; a lever; and a main shaft. The tripping component, the latch, the half shaft and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The lever includes a sheet metal bending piece. The sheet metal bending piece is bent to form a top wall and two side walls. The tripping component, the latch, the half shaft, the lever and the main shaft move in linkage. The tripping and the latch form a two-level latch. The operation mechanism of the circuit breaker is manual operation.
A universal circuit breaker energy storage handle anti-jamming apparatus, comprising a circuit breaker body, an operating mechanism mounted at a side of the circuit breaker body, and an energy storage handle mounted on the outer sidewall of a side of the operating mechanism. The energy storage handle is rotated to manually store energy in the operating mechanism. The operating mechanism comprises a V-shaped rotating shaft. One extremity of the V-shaped rotating shaft protrudes the sidewall at a side of the operating mechanism. One extremity of the V-shaped rotating shaft is sleeved with a ratchet linked to the energy storage handle. A cleat linked to the ratchet is provided on the side of the energy storage handle facing the ratchet. The rotation of the energy storage handle drives via the cleat the ratchet to rotate. An anti-jamming structure preventing the cleat and the ratchet from jamming is provided between the cleat and the ratchet. The anti-jamming structure comprises an anti-jamming plate. When the energy storage handle is in an initial state, the anti-jamming plate separates the cleat from the ratchet.
An arc-quenching chamber for use with universal circuit breakers, comprising an arc-isolating wall (1) and a plurality of arc-striking plates (2) installed between two opposing sidewalls of the arc-isolating wall (1), wherein an arc-quenching assembly plate (3) is provided on a bottom portion of the arc-isolating wall (1), a plurality of vent through-holes (301) are provided on a bottom portion of the arc-quenching assembly plate (3), and a total area of the vent through-holes (301) distributed at an end of the arc-quenching assembly plate (3) close to a static bus is smaller than a total area of the vent through-holes (301) distributed at an end far from the static bus. In the arc-quenching chamber for use with universal circuit breakers of the present solution, the structure of the arc-quenching assembly plate (3) is improved upon such that the total area of the vent through-holes (301) distributed at the end of the arc quenching assembly plate (3) close to the static bus is smaller than the total area of the vent through-holes (301) distributed at the end far from the static bus. As a result, air pressure is uniformly distributed inside the arc-quenching chamber, arc-quenching time is reduced, the service life of a circuit breaker is extended, and costs are lowered.
Provided is an interlocked changeover switch electrical appliance, comprising: a first changeover switch electrical appliance (1a), a second changeover switch electrical appliance (1b) and an interlocking mechanism. Each of the first changeover switch electrical appliance (1a) and the second changeover switch electrical appliance (1b) has a common side drive mechanism and a backup side drive mechanism. The interlocking mechanism comprises an array interlocking device and a drawer seat interlocking component, and the array interlocking device enables each driving mechanism and the drawer seat interlocking component to be interlocked. The reliability of power supply is improved.
