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800results about "Circuit-breaking switch contacts" patented technology
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Dynamic closed-loop management method for bridge-shaped contact performance
PendingCN121769771AEmergency protective arrangement detailsEmergency protective arrangements for automatic disconnectionHealth indexElectric power system
The invention discloses a dynamic closed-loop management method for bridge-shaped contact performance, and relates to the technical field of power system protection. The method comprises the following steps: S1, a dynamic sensing process: acquiring multi-source dynamic parameters of a bridge-shaped contact in a non-intrusive mode; s2, a quantitative evaluation process: fusing the multi-source dynamic parameters and the static parameters, and calculating a health index or a health level of the contact through a preset model; s3, adaptively optimizing the process, dynamically adjusting the closing energy or protection parameters of the circuit breaker according to the health state, and compensating the performance change of the contact; and S4, a predictive maintenance process: performing trend extrapolation based on the historical data of the health index, predicting the residual life and generating a maintenance suggestion. The processes are sequentially connected and cyclically iterated to form dynamic closed-loop management, so that the problems of one-sided parameter sensing, inaccurate evaluation, fixed parameters and maintenance lag in the prior art are solved, the operation reliability of the bridge-shaped contact is improved, the service life of equipment is prolonged, and the operation and maintenance cost is reduced.
Owner:YUEQING SUOTAI ELECTRIC
Circuit breaker
PendingCN120727521AProtective switch terminals/connectionsCircuit-breaking switch contactsModular designProcess engineering
A circuit breaker comprises a circuit breaker body, and accessories which can be selectively and additionally arranged on the circuit breaker body at least comprise an air outlet groove accessory, an arc striking row accessory, a bottom cover and a dustproof cover accessory. The beneficial effects of the invention are that the technical scheme achieves the selectable installation of accessories through the modular design, and remarkably improves the applicability and flexibility of the circuit breaker. A user can flexibly combine the accessories according to actual use scenes (such as different environments or functional requirements), so that the purchase of unnecessary components is avoided, and the initial cost is reduced; meanwhile, a subsequent installation mechanism allows a user to gradually expand functions when demands change, the whole circuit breaker does not need to be replaced, and resource waste is reduced.
Owner:乐清跃界工业设计工作室(个体工商户)
Power supply control mechanism
ActiveCN223450817UProtective switch operating/release mechanismsCircuit-breaking switch contactsControl theoryContact mechanism
The utility model relates to the field of low-voltage electric appliances, in particular to a power supply control mechanism, which comprises a reset button, a tripping rod, a tripper, a control module and a switch contact system. When the reset button is at the hasp position or the release position, the switch contact system is switched on or switched off; a switch moving contact mechanism of the switch contact system comprises a contact support, a switch moving contact and a switch moving contact spring; in the process that the reset button moves to the hasp position, the switch moving contact mechanism is firstly driven to move to enable the switch moving contact to be in initial contact with the switch static contact, and then the contact support and the switch moving contact are driven to move relatively to enable the switch moving contact spring to store energy; in the process that the reset button moves to the tripping position, the switch moving contact spring releases energy to enable the switch moving contact and the contact support to recover limiting fit; according to the power supply control mechanism, the current-carrying capability and the arc-resistant capability of the switch contact system are good.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD
Rotating shaft structure of double-breakpoint molded case circuit breaker
ActiveCN224053117UProtective switch operating/release mechanismsCircuit-breaking switch contactsButt jointControl theory
The utility model relates to the technical field of circuit breaker structures, in particular to a rotating shaft structure of a double-breakpoint molded case circuit breaker, which is characterized in that a rotating shaft main body is of an integral structure design, a contact groove is formed in the rotating shaft main body along the radial direction, the middle part of a moving contact is inserted into the contact groove, and two ends of the moving contact penetrate out along an opening of the contact groove; the static spring shaft and the moving spring shaft are used for being in butt joint with the static contact, the static spring shaft and the moving spring shaft are located on the two sides of the moving contact respectively, the two ends of the contact spring are connected to the static spring shaft and the moving spring shaft respectively, and the moving spring shaft is pulled through elastic tension of the contact spring so that the two sides of the moving contact can abut against the inner side wall of the contact groove respectively. Due to the integral structure design of the rotating shaft main body, the three-phase synchronism of the molded case circuit breaker is consistent, the limit breaking capacity and the operation breaking capacity of the circuit breaker are greatly improved, the safety and the reliability of the circuit breaker in operation are improved, and the electrical life of the circuit breaker is prolonged.
Owner:ANDELI GRP
Circuit breaker
PendingCN120511176AProtective switch operating/release mechanismsCircuit-breaking switch contactsCouplingControl theory
The circuit breaker comprises a moving contact, a static contact, an operating mechanism, a rotating shaft, a traction rod and a push rod, the traction rod is rotatably connected to the operating mechanism, and the push rod is rotatably and slidably connected to the rotating shaft. The moving contact is rotatably connected to the rotating shaft and has a coupling state and an electric repulsive force state; in the coupling state, the moving contact and the static contact are mutually coupled; and in the electric repulsive force state, the moving contact and the static contact are mutually disconnected, and the moving contact swings, acts on one end of the push rod and drives the push rod to move, so that the other end of the push rod acts on the traction rod and drives the traction rod to rotate, thereby realizing the tripping of the operating mechanism. The push rod can rotate and slide on the rotating shaft, so that the push rod can move quickly to realize quick opening of the circuit breaker; the push rod is high in movement stability on the rotating shaft, and the push rod can be conveniently installed on the rotating shaft.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD
Circuit breaker
PendingCN120637170AProtective switch terminals/connectionsProtective switch operating/release mechanismsElectrical conductorElectric equipment
The invention provides a circuit breaker, and relates to the technical field of electrical equipment. The circuit breaker comprises a moving contact, a static contact, a first connecting conductor and a second connecting conductor, the first connecting conductor comprises a first connecting section, a flexible connecting section and a second connecting section which are connected in sequence, the first connecting section is used for being fixedly arranged on an installation shell and used for being connected with an external electrical element, and the second connecting section is connected with the moving contact. The moving contact moves synchronously along with the moving contact; the static contact is connected with the second connecting conductor; under the condition that the moving contact and the static contact are switched on, the first connecting section, the flexible connecting section, the second connecting section, the moving contact, the static contact and the second connecting conductor form a conductive loop, and the current direction of the first connecting section is opposite to that of the second connecting section and is the same as that of the second connecting conductor. The purpose of enhancing the contact pressure of the contact by using the electromagnetic force generated by the current in the closing state is achieved, so that the short-time tolerance performance and the operation reliability of the circuit breaker are improved.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1
Integrated sealed primary and secondary fusion pole-mounted circuit breaker
ActiveCN120656904AContactsProtective switch operating/release mechanismsControl theoryArc extinction
The invention discloses an integrated sealed primary and secondary fusion pole-mounted circuit breaker in the technical field of circuit breakers, and the integrated sealed primary and secondary fusion pole-mounted circuit breaker comprises a case, a push-pull mechanism, a first elastic mechanism and a second elastic mechanism. A plurality of sets of insulating pull rods extending into the circuit breaker body are installed in the case in an up-down sliding mode, the push-pull mechanisms are fixedly installed in a plurality of sets of supports in the case in a rotating mode, and the top ends of the push-pull mechanisms are fixedly connected with the bottom ends of the insulating pull rods. The two sides of the support are symmetrically provided with two groups of first elastic mechanisms connected with the push-pull mechanism, and the problems that the speed of a movable contact block in an existing circuit breaker cannot be effectively buffered when the movable contact block rapidly gets close to or gets away from a static contact block, and the elastic mechanisms in the circuit breaker are inconvenient to efficiently synchronize energy storage and pressure release of a closing spring and an opening spring; and the operation efficiency, the reliability, the synchronism, the arc extinguishing performance and the like of the circuit breaker are not improved.
Owner:GREAT WALL ELECTRIC GRP ZHEJIANG TECH CO LTD
Plug-in circuit breaker
PendingCN120108983AElectric switchesProtective switch operating/release mechanismsElectronic switchControl theory
A plug-in circuit breaker comprises a shell, an operating mechanism, a static contact and a moving contact, a closing handle and an opening handle of the operating mechanism are respectively arranged on the shell in a sliding mode, a closing locking piece is assembled in a rotating mode and is respectively matched with the closing handle and the opening handle, the contact mechanism further comprises a contact spring, and the moving contact and the contact spring are respectively arranged in a rotating mode. When the closing handle is pressed to a closing position, the contact spring firstly drives the moving contact to switch on the contact mechanism and provide contact pressure for the moving contact, the closing handle then closes the solid-state electronic switch, the closing handle is in limiting fit with the closing locking piece, and when the opening handle is pulled to an opening position, the solid-state electronic switch is closed. The switching-off handle drives the switching-on locking piece to release the limiting cooperation with the switching-on handle, so that when the switching-on handle moves to the switching-off position, the solid-state electronic switch is firstly switched off, and then the moving contact is driven to switch off the contact mechanism. According to the invention, the mechanism of the operation mechanism is simplified, misoperation in the operation process can be prevented, and the reliability and the use safety of the product are improved.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD
Miniature circuit breaker
ActiveCN223273202UProtective switch terminals/connectionsCircuit-breaking switch contactsAlloyElectric shock
The utility model discloses a miniature circuit breaker, which comprises a shell provided with an arc extinguish chamber. The arc extinguish chamber is connected with an upper arc striking sheet; the upper arc striking sheet comprises an upper arc striking sheet conductive section and an upper arc striking sheet arc striking section; the conductive section of the upper arc striking sheet is made of copper, and the arc striking section of the upper arc striking sheet is made of iron; the upper arc striking sheet conductive section and the upper arc striking sheet arc striking section are connected through a solder layer; a moving contact plate used for being matched with the upper arc striking sheet is arranged in front of the upper arc striking sheet, and an electric shock part used for being in contact with the upper arc striking sheet is arranged on the moving contact plate. The moving contact plate is made of copper-iron-phosphorus alloy.
Owner:WENZHOU ZIYAO ELECTRIC CO LTD
Power supply control mechanism
ActiveCN223450816UProtective switch operating/release mechanismsCircuit-breaking switch contactsControl theoryReset button
The utility model relates to the field of low-voltage electric appliances, in particular to a power supply control mechanism, a reset button of the power supply control mechanism is in hasp fit with a tripping rod and in transmission fit with a tripper, a control module is electrically connected with the tripper through a connecting circuit, and a switch contact system is connected in series in the connecting circuit; when the reset button is at the hasp position / tripping position, the switch contact system is switched on / off; in the switch contact system, a switch moving contact mechanism is linked with a reset button, and a switch static contact is provided with a first position and a second position. In the process that the reset button moves to the hasp position, the switch moving contact mechanism is firstly driven to move to make initial contact with the switch static contact located at the first position, and then the switch static contact is driven to move to the second position through the switch moving contact mechanism. When the reset button moves to the tripping position, the switch static contact is reset to the first position; according to the power supply control mechanism, the current-carrying capability and the arc-resistant capability of the switch contact system are good.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD
Manual tripping mechanism of leakage protection device
ActiveCN223108817UProtective switch operating/release mechanismsCircuit-breaking switch contactsControl theoryPush-button
The utility model relates to a manual tripping mechanism of a leakage protection device, which comprises an upper cover and a base which are covered with each other, a swing seat is movably arranged between the upper cover and the base, movable contact pieces are arranged on the left side and the right side of the swing seat, static contact pieces are arranged on the upper cover on the upper sides of the rear ends of the two movable contact pieces, and a lock catch seat is arranged on the front side of the swing seat. The upper end of the lock catch seat is rotatably matched on the upper cover, the lower end of the lock catch seat penetrates out of the base downwards, the lock catch seat is provided with a limiting step used for limiting the front side of the swing seat, and the lower side of the base is fixedly provided with a trip coil which is internally and movably matched with an ejector pin. One end of the ejector pin penetrates out of the tripping coil and is fixedly connected with a sliding ring facing the rear side of the lower end of the lock catch seat, and the upper cover is provided with a manual tripping button used for pushing the sliding ring to move forwards. The quick and reliable tripping action is realized, and the safety and multifunctionality of the product are improved.
Owner:WENZHOU WYNDHAM INTELLIGENT TECHNOLOGY CO LTD
Circuit breaker
PendingCN121687789AElectric switchesProtective switch operating/release mechanismsControl theoryContact mechanism
A circuit breaker relates to the technical field of low-voltage electrical appliances and comprises a shell, a handle, an operating mechanism and a contact mechanism, the shell is provided with a first rotating shaft and a second rotating shaft, the operating mechanism is mounted on the first rotating shaft and comprises a mechanism seat, a jump fastener and a lock fastener, the contact mechanism comprises a moving contact and a static contact, the moving contact is mounted on the second rotating shaft, and the static contact is mounted on the second rotating shaft. The handle and the jump fastener are connected through a first connecting rod. The jump fastener and the moving contact are connected through a second connecting rod. During normal switching-on or switching-off operation, the locking fastener is buckled with the tripping fastener, and the handle is driven to drive the mechanism seat to rotate around the first rotating shaft through the first connecting rod, so that the moving contact is driven to be close to or far away from the static contact through the tripping fastener and the second connecting rod; when a fault is tripped, the locking piece and the tripping piece are tripped, and the moving contact is driven to rotate around the second rotating shaft so as to be far away from the static contact. According to the circuit breaker, the operating mechanism and the moving contact are respectively arranged on different rotating shafts, and the motion decoupling of the operating mechanism and the moving contact is realized during fault tripping, so that the moving contact can be quickly broken.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1
Arc extinguishing system and circuit breaker
The invention relates to the technical field of low-voltage electric appliances, in particular to an arc extinguishing system and a circuit breaker. The arc extinguishing system comprises a shell and an arc extinguishing chamber; a mounting cavity is formed in the shell, and the arc extinguish chamber is arranged in the mounting cavity; a plurality of air outlet holes for exhausting air to the outside are formed in one end of the mounting cavity; the arc extinguishing chamber is provided with an arc extinguishing cavity; a pressure relief channel is further arranged in the mounting cavity, an inlet of the pressure relief channel is communicated with the arc extinguishing cavity, and an outlet of the pressure relief channel is communicated with the air outlet hole. Through the pressure relief channel, the problem that gas impacts the moving and static contacts to cause damage to the moving and static contacts can be avoided; the phenomenon that a large amount of gas carrying charged particles flows between the moving contact and the static contact to cause breakdown between the moving contact and the static contact can be relieved, and the breaking capacity of the arc extinguishing system is further improved; in addition, charged particles or electric arcs entering the pressure relief channel can be gradually cooled in the pressure relief channel, and therefore the arc extinction effect is improved.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD
Circuit breaker
PendingCN120183974AProtective switch operating/release mechanismsCircuit-breaking switch contactsContact systemArc extinction
A circuit breaker provided by the present invention comprises a housing and internal elements, the internal elements at least comprise an upper arc extinguish chamber, a lower arc extinguish chamber, a double-breakpoint contact system, a first wiring terminal, a second wiring terminal, an overload release, a mechanism and a rotating shaft, and the double-breakpoint contact system comprises a single-breakpoint moving contact, a double-breakpoint moving contact and a static contact. The mechanism drives at least one rotating shaft, the double-breakpoint contact system is arranged between the upper arc extinguish chamber and the lower arc extinguish chamber, and the single-breakpoint moving contact and the double-breakpoint moving contact are respectively driven by two rotating shafts. When the circuit breaker is subjected to breaking and manual operation opening, the mechanism drives the two sets of rotating shafts to move together so that the two breakpoints can be kept disconnected at the same time, the opening distance is large, the isolation performance is good, and high-short-circuit current under high voltage can be broken.
Owner:TIANJIN SVRUI INTELLIGENT ELECTRICAL CO LTD
Multi-phase independent breaking intelligent measurement switch
ActiveCN223193732UProtective switch operating/release mechanismsCircuit-breaking switch contactsCarrier signalElectronic component
Owner:ZHEJIANG CHINT ELECTRIC CO LTD
Split-phase independently controlled three-phase switch
ActiveCN120565354AProtective switch operating/release mechanismsCircuit-breaking switch contactsPower applicationControl engineering
The invention belongs to the technical field of power application, and aims to solve the problems that arc energy of an existing three-phase switch is difficult to accurately control and potential safety hazards exist when an electronic scheme is adopted. A split-phase independent control three-phase switch provided by the present invention comprises a switch body and three switch mechanisms, each switch mechanism comprises a shell, a handle, a linkage assembly, a moving contact assembly, a static contact, an arc extinguish chamber, a microswitch and a tripping assembly, the moving contact assembly and the arc extinguish chamber are both arranged in the closed shell, and the static contact assembly is arranged in the shell. The handle is connected with the moving contact assembly through the linkage assembly, the joint position of the moving contact assembly and the static contact is located in the arc extinguish chamber, and the linkage assembly is arranged to be capable of being connected with the microswitch when the moving contact assembly is connected with the static contact. The tripping assembly is set to enable the linkage assembly to drive the moving contact assembly to be separated from the static contact when the current reaches a set threshold value. The three-phase switch can accurately control arc energy, adopts a mechanical tripping mechanism to optimize a protection structure, and has no potential safety hazard.
Owner:JIANGSU DONGXI PERSIMMON TECH CO LTD +2
Circuit breaker
ActiveCN223206201UContactsProtective switch operating/release mechanismsTorsion springElectric equipment
The utility model provides a circuit breaker, which belongs to the field of electrical equipment and comprises a shell and a connecting shaft fixed on the shell. The double-contact torsion spring comprises a first torsion spring and a second torsion spring which are connected with each other, and the first torsion spring and the second torsion spring have the same rotation direction and are arranged on the connecting shaft side by side; the double-contact torsion spring is provided with a connecting end and a free end, the free end comprises a first free end of the first torsion spring and a second free end of the second torsion spring, and the first free end is not connected with the second free end; the N-pole moving contact assembly is connected with the first free end; the L-pole moving contact assembly is connected with the second free end; when the double-contact torsion spring rotates, the N-pole moving contact assembly and the L-pole moving contact assembly can be driven to move at the same time, the contact pressure of the N-pole moving contact assembly and the contact pressure of the L-pole moving contact assembly can be controlled at the same time, the stability of the circuit breaker is guaranteed, assembling is convenient, and the manufacturing efficiency is improved.
Owner:DELIXI ELECTRIC
Closing device and circuit breaker
PendingCN120878512AProtective switch operating/release mechanismsCircuit-breaking switch contactsLow voltageControl theory
A closing device and a circuit breaker relate to the low-voltage electrical field. The invention provides a closing device, which comprises a handle and a contact assembly, and is characterized in that the contact assembly comprises a static contact group and a moving contact group which can be in contact with or separated from the static contact group, and the moving contact group is in transmission connection with the handle; the handle comprises a body and a quick-closing piece rotationally arranged in the body; and the driving handle rotates to drive the moving contact group to move towards the static contact group, and the quick closing piece can be in contact with the moving contact group, so that the moving contact group stores energy to realize quick closing. According to the switching-on device, rapid switching-on of the contact assembly can be realized through the processes of energy storage and energy release, so that abrasion to the contact is reduced, and the switching-on reliability of the contact and the performance of the circuit breaker are improved.
Owner:SHANGHAI LIANGXIN INTELLIGENT ELECTRIC CO LTD +1
Shunt release and splicing structure of shunt release and circuit breaker
ActiveCN223140697UProtective switch operating/release mechanismsCircuit-breaking switch contactsLap jointControl theory
The utility model provides a shunt release and a splicing structure of the shunt release and a circuit breaker, and relates to the technical field of electrical equipment, and the shunt release comprises a housing, an operating mechanism, a movable contact piece and a static contact piece. The operating mechanism comprises a handle, a connecting rod, a jump pin, a lock catch and a contact support, the handle is rotationally connected to the shell, the contact support is rotationally connected to the shell, the lock catch is rotationally connected to the contact support, the jump pin is rotationally connected to the contact support, and the jump pin is in lap joint with the lock catch; the lock catch is provided with a clamping groove, and a part of the contact support is located in the clamping groove. The other end of the connecting rod is rotationally connected with the handle; the moving contact is connected to the contact support; the static contact is connected to the shell; the handle can rotate between a first position and a second position so as to drive the movable contact piece to be in contact with or separated from the static contact piece. According to the shunt release, the contact support is directly connected to the shell through the first connecting shaft, a supporting piece is omitted, the number of parts is reduced, and the cost of the shunt release is reduced.
Owner:DELIXI ELECTRIC
Magnetic rotation arc extinguishing circuit breaker contact structure
PendingCN121726287AProtective switch terminals/connectionsCircuit-breaking switch contactsStructural engineeringElectric current flow
The invention discloses a magnetic rotation arc extinguishing circuit breaker contact structure, and belongs to the technical field of high-voltage electric connectors. Comprising an arc extinguishing device, a connecting device and a circuit breaker contact, the arc extinguishing device can be connected with the circuit breaker contact through the connecting device, the arc extinguishing device is integrally of a cylindrical structure, a longitudinal magnetic field is generated when current flows through the arc extinguishing device, and when an arc passes through the middle area of the arc extinguishing device, the arc is effectively stretched and rapidly extinguished under the action of the magnetic field. The connecting device comprises a centering piece and a fixing assembly, the centering piece can fix the arc extinguishing device on the axis of the centering piece, and the fixing assembly can fix the arc extinguishing device. Through the arc extinguishing assembly, a longitudinal magnetic field is formed when current passes through the arc extinguishing assembly, and the arc rotates and stretches along a spiral path under the action of magnetic field force, so that the arc extinguishing efficiency of the circuit breaker is remarkably improved, and the problem that the magnetic field direction is inconsistent with the arc flowing direction in the prior art is solved.
Owner:GUANGDONG JINHUILONG ELECTRIC CO LTD
Leakage protection device
ActiveCN223108803UProtective switch operating/release mechanismsCircuit-breaking switch contactsControl theoryMechanical engineering
The utility model relates to a leakage protection device which comprises an upper cover and a base which are covered with each other, a swing seat is movably arranged in the upper cover, a rotating shaft is integrally formed on the swing seat, the rotating shaft is movably matched in a limiting groove of an upper cover limiting plate, the left side and the right side of the swing seat are both fixedly connected with movable contact pieces, and the left side and the right side of the upper cover are both provided with static contact pieces. A first spring is arranged between the swing seat and the base, the first spring is located on the front side of the rotating shaft and used for abutting against the swing seat upwards, a lock catch seat located on the front side of the swing seat is arranged in the upper cover, and a limiting step used for allowing the front side of the swing seat to be clamped in is arranged on the lock catch seat. When the front side of the swing seat is located in the limiting step, a movable contact of the movable contact piece abuts against a static contact of the static contact piece, a trip coil assembly is fixedly arranged on the lower side of the base, and the trip coil assembly is used for pushing the lock catch seat to enable the front side of the swing seat to be separated from the limiting step. And the working stability and safety of the device are improved.
Owner:WENZHOU WYNDHAM INTELLIGENT TECHNOLOGY CO LTD
Circuit breaker without flashover distance
PendingCN120453138AElectric switchesCircuit-breaking switch contactsThermal dilatationArc extinction
The invention relates to the technical field of circuit breakers, and discloses a flashover-distance-free circuit breaker which comprises a circuit breaker shell, a static contact is fixedly installed in the circuit breaker shell, a moving contact is further installed in the circuit breaker shell in a sliding mode, an arc extinguish chamber is arranged below the static contact and the moving contact, and the arc extinguish chamber is fixedly installed on the circuit breaker shell. An outer cylinder is rotatably connected in the arc extinguish chamber, an inner cylinder capable of sliding in the axial direction of the outer cylinder is coaxially and slidably connected in the outer cylinder, two or more arc extinguish grid sheets are fixedly connected in the inner cylinder in a spiral array mode, and a gas piston is rotatably connected to the bottom of the inner cylinder; when the arc is generated, thermal expansion gas is utilized to drive the inner cylinder to move axially, so that the front ends of the arc extinguishing grid sheets are actively close to a contact separation point, an air gap between a traditional arc extinguishing chamber and a contact is eliminated, the subsequent arc can directly enter an inner cylinder constraint area without crossing an external environment, the arc exposure time is greatly shortened, and the arc extinguishing efficiency is improved. And the service life of the circuit breaker is obviously prolonged.
Owner:JIAXING JIAKONG ELECTRICAL EQUIP MFG CO LTD
Circuit breaker, control system, vehicle, and control method
PendingCN120413377AElectric/fluid circuitProtective switch terminals/connectionsControl systemElectrical connection
The invention relates to a circuit breaker, a control system, a vehicle and a control method, the circuit breaker comprises an electric connection unit and a power unit, and the electric connection unit is suitable for being connected with an external circuit; the power unit is used for driving the electric connection unit to act so that an external circuit can be connected or disconnected through the electric connection unit. The circuit breaker aims at solving the technical problem that in the prior art, after a circuit is disconnected, a circuit breaker cannot be used.
Owner:BYD CO LTD
Electrical insulation structure of molded case circuit breaker
PendingCN121011482AProtective switch detailsCircuit-breaking switch contactsStructural engineeringCircuit breaker
An electrical insulation structure of a molded case circuit breaker comprises a connecting rod assembly (1), the connecting rod assembly (1) can drive a rotating shaft (3) to rotate under the driving of an operating handle assembly (2), a moving contact (4) is arranged on the rotating shaft (3), and the electrical insulation structure is characterized in that the surface of the moving contact (4) is coated with an insulating part (5) for increasing the creepage distance between the moving contact (4) and a metal part of the connecting rod assembly (1) of the circuit breaker. According to the electrical insulation structure, the creepage distance between the moving contact of the conductive piece and the metal piece of the lower connecting rod of the mechanism piece is increased through the installation of the upper insulating piece and the lower insulating piece on the moving contact, so that the safety performance of the circuit breaker is improved.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1
RCD module with laterally inserted elastic sheets
ActiveCN222980419UProtective switch detailsCircuit-breaking switch contactsElectronic componentSwitchgear
Owner:DONGGUAN ZHIMIWANG INTELLIGENT ELECTRICAL CO LTD
Arc extinguishing system and switch
The invention relates to the technical field of low-voltage electric appliances, in particular to an arc extinguishing system and a switch. The arc extinguishing system provided by the invention comprises a moving contact assembly, a static contact assembly, an arc extinguishing chamber assembly, an insulating part, a bottom plate, a first sliding block and a second sliding block, the moving contact assembly comprises a moving main contact and a moving arc contact, an avoiding opening is formed in the insulating part, the moving arc contact penetrates through the avoiding opening, an inserting groove is formed in the bottom plate, the first sliding block is inserted into the inserting groove, the second sliding block is located in the avoiding opening and is in transmission connection with the moving arc contact, and the first sliding block is in sliding connection with the second sliding block; in the opening process of the moving contact assembly, the first sliding block moves in the direction of retreating from the slot, and the first sliding block and the second sliding block jointly block the receding opening. In the switching-on process of the moving contact assembly, the first sliding block moves in the direction of being inserted into the slot. The occupied space of the arc extinguishing system in the thickness direction is smaller, and the space utilization rate is higher.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1
Residual current operated circuit breaker
ActiveCN223941768UProtective switch detailsCircuit-breaking switch contactsClassical mechanicsCircuit breaker
The utility model discloses a residual current operated circuit breaker, which comprises a circuit breaker shell and a rotating shaft, and the rotating shaft is rotatably connected with the circuit breaker shell. At least one mounting groove is formed in the rotating shaft, a moving contact and a contact torsion spring are arranged in each mounting groove, and one end of each contact torsion spring abuts against the corresponding moving contact; wherein the mounting groove is provided with an abutting wall and two side walls, and the two side walls are arranged on the two sides of the abutting wall respectively; abutting structures are arranged on the two side walls, and each abutting structure is provided with a first gear and a second gear; the other end of the contact torsion spring abuts against one of the abutting wall, the first gear and the second gear. The deformation quantity of the contact torsion spring when the contact torsion spring abuts against the abutting wall is smaller than the deformation quantity of the contact torsion spring when the contact torsion spring abuts against the first gear, and the deformation quantity of the contact torsion spring when the contact torsion spring abuts against the first gear is smaller than the deformation quantity of the contact torsion spring when the contact torsion spring abuts against the second gear. The pressure adjusting device has the advantage of being adjustable in pressure.
Owner:ZHEJIANG ETEK ELECTRICAL TECH CO LTD
Residual current operated circuit breaker
ActiveCN223858120UProtective switch terminals/connectionsCircuit-breaking switch contactsControl theoryCircuit breaker
The utility model discloses a residual current operated circuit breaker, which relates to the technical field of circuit breakers and comprises a shell and a contact box assembled in the shell, a wire outlet end static contact and a wire inlet end static contact are respectively assembled on two sides of the contact box, the wire outlet end static contact comprises a connecting part, an extending part and a mounting part, and the connecting part is connected with the extending part. Wherein the mounting part is integrally of a U-shaped structure, a cavity matched with the U-shaped mounting part is formed in the contact box, the extension part is located between the connecting part and the mounting part, the extension part, the connecting part and the mounting part are integrally formed through extrusion, the extension part is additionally arranged to connect the connecting part and the mounting part, and the extension part, the connecting part and the mounting part are integrally formed through extrusion, so that the length of the wire outlet end static contact is effectively increased; and large current can pass through.
Owner:SHANGHAI MULLER ELECTRICAL APPLIANCES (GROUP) CO LTD
Moving contact system and circuit breaker comprising same
ActiveCN224204078Uuniform gapPrevent sidewaysCircuit-breaking switch contactsControl theoryCircuit breaker
The utility model provides a moving contact system and a circuit breaker comprising the same. The moving contact system comprises a plurality of contact fingers which are arranged in parallel; the contact supporting piece comprises a supporting plate and a pair of supporting arms arranged on the two sides of the supporting plate, and the first ends of the plurality of contact fingers are pivotally installed between the pair of supporting arms; the plurality of springs are arranged corresponding to the plurality of contact fingers and are positioned between the plurality of contact fingers and the supporting plate of the contact supporting piece; and the insulating grating comprises a connecting part which is arranged between the contact finger and the spring. According to the moving contact system, the insulating grating is arranged between the contact finger and the corresponding spring, so that the spring can provide larger contact pressure for overcoming electro-dynamic repulsive force during short-time tolerance, the tolerance performance is improved, meanwhile, the insulating grating and the contact finger can keep synchronous movement, friction force is reduced in the switching-on / switching-off process, and the service life of the moving contact system is prolonged. And the mechanical performance of the circuit breaker is improved.
Owner:SCHNEIDER ELECTRIC IND SAS
Arc extinguishing chamber with flow guiding structure and circuit breaker
The application relates to the technical field of switch equipment, in particular to an arc-extinguishing chamber with a flow guide structure and a circuit breaker. The arc-extinguishing chamber with the flow guide structure comprises a contact seat, a static support and a flow guide cylinder, the contact seat is provided with an axial flow hole, the static support is a tubular structure with an open end, is sleeved on the contact seat through the open end, the flow guide cylinder is arranged in the static support along an axial direction, the flow guide cylinder and the static support surround an annular flow guide channel, a through hole is formed in the outer wall of the static support, a gas baffle is fixedly installed on the outer wall of the static support and corresponds to the through hole, and the gas baffle is provided with a gas discharge hole. The arc-extinguishing chamber with the flow guide structure can prolong the discharge path of the hot airflow and reduce the flow speed, can effectively prevent a large amount of foreign matters such as metal particles and dust carried in the hot airflow from being discharged, avoids threatening the ground or interphase insulation at the tail of the airflow channel, and improves the insulation reliability.
Owner:HENAN PINGGAO ELECTRIC