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1955results about "Switch power arrangements" patented technology

Electromechanical switching arrangement

Electromechanical switching arrangement (1) with at least two electrical connection areas, namely at least one first electrical connection area (2, 2') and at least one second electrical connection area (3, 3'), wherein the first electrical connection area (2, 2') has at least one fixed first electrical contact element (4a-4g) and the second electrical connection area (3, 3') has at least one fixed second electrical contact element (5a-5g), wherein the first electrical contact element (4a-4g) and the second electrical contact element (5a-5g) are electrically connectable and disconnectable via at least one movable third electrical contact element (6a-6g), wherein the third electrical contact element (6a-6g) is biased into a switching position (A, B) via at least one elastic element (7) and can be actuated into at least one other switching position (A, B) via an actuator unit (8),wherein the actuator unit (8) has at least one actuator (9) and at least one switching shaft (10) which is movable via the actuator and, depending on the actuated switching position (A, B), leaves the third electrical contact element (6a-6g) in the pre-tensioned switching position (A), or moves it against the spring force of the elastic element (7) into at least one other switching position (A, B).
Owner:MAGNA POWERTRAIN AG & CO KG

Contactor and control method thereof

The contactor comprises an electromagnetic assembly, a static contact and a movable assembly, the movable assembly comprises a movable contact, a first elastic part and a driving part which are connected, and the first elastic part is configured to generate elastic force supporting the movable assembly; the driving component is configured to generate electromagnetic driving force through a magnetic field generated by the electromagnetic assembly, and the controller is configured to control a movable contact and a static contact of the movable assembly to be closed and respond to the fact that the sensor detects that the driving component generates displacement based on electric repulsive force generated by current flowing through the movable contact and the static contact. And controlling the electromagnetic assembly to adjust the generated magnetic field so as to reduce electromagnetic driving force which is generated by the driving part according to the generated magnetic field and is opposite to the electric repulsive force, so that the movable contact is not closed with the static contact again. According to the contactor disclosed by the invention, fusion welding of the movable contact and the static contact in the short circuit process can be prevented, so that the contactor fault is avoided, and the equipment reliability is improved.
Owner:SCHNEIDER ELECTRIC IND SAS

Magnetic flux release, isolating switch and power supply system

The invention relates to the technical field of low-voltage electric appliances, in particular to a magnetic flux release, an isolating switch and a power supply system. The electromagnetic coil is installed on the support, and the ejector rod is inserted into the electromagnetic coil in a sliding mode. In the electromagnetic coil, at least two movable iron cores which are arranged at intervals in the axial direction are arranged on the ejector rod; when the electromagnetic coil is powered on, at least one movable iron core moves in the axial direction of the ejector rod and drives the ejector rod to move. According to the embodiment of the invention, at least two movable iron cores are arranged in the magnetic flux release, so that differentiated response can be realized for different faults.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1

Electric intelligent monitoring drop-out fuse

The invention discloses an electric intelligent monitoring drop-out fuse, and relates to the technical field of protection fuses. The electric intelligent monitoring drop-out fuse comprises an insulating pillar and an isolation arc protection device arranged at the top end of the insulating pillar, and further comprises a fuse carrier support installed at the bottom end of the insulating pillar; the fuse carrier is arranged on one side of the insulating support, and the bottom end of the fuse carrier is rotationally connected with the bottom end of the insulating support through a fuse carrier support; the push-pull type driving mechanism is mounted and sleeved on the insulating support column, and drives the fuse carrier to swing in a push-pull manner; the push-pull type driving mechanism is driven by an impact type driving assembly to slide. The opening and closing driving mode of the fuse is improved, push-out is carried out by adopting a concave-convex wheel impact mode, the opening speed is high, rapid disconnection can be realized, meanwhile, a force storage structure is also arranged for storing force and releasing the force during opening and push-out, the impact type driving assembly can be further assisted to apply driving force, the opening speed is further accelerated, and the response speed is high.
Owner:ZHEJIANG CIHONG POWER TECH CO LTD

Dual-motor operation module, fusion switch and energy storage system

The utility model relates to the technical field of energy storage equipment, and particularly discloses a dual-motor operation module, a fusion switch and an energy storage system, and the dual-motor operation module comprises an operation housing, and a main loop operation mechanism and a pre-charging loop operation mechanism which are disposed in the operation housing. A first opening and a second opening are formed in the operation shell, the first opening is provided with a first output piece linked with a main loop operation mechanism, and the second opening is provided with a second output piece linked with a pre-charging loop operation mechanism; and the main loop operating mechanism and the pre-charging loop operating mechanism can respectively drive the fusion switch to be switched on and switched off through the corresponding first output piece and the second output piece. The reliability of the fusion switch can be effectively improved through the main loop operation mechanism and the pre-charging loop operation mechanism, and stable control over the energy storage system is achieved.
Owner:LIANGXIN ELECTRICAL (HAIYAN) CO LTD +1

Anti-error outdoor high-voltage combined electric appliance device for electrified railway

The invention discloses an electrified railway anti-misoperation outdoor high-voltage combined electric appliance device, which comprises an anti-misoperation spring energy storage device, an isolating switch linkage mechanism and a circuit breaker linkage mechanism, and is characterized in that the anti-misoperation spring energy storage device consists of an energy storage shaft, an energy storage spring and an energy storage transmission connecting rod; the anti-misoperation spring energy storage device is further provided with an energy storage limiting mechanism for preventing the energy storage shaft from rotating mistakenly after the energy storage spring stores energy, and an opening and closing trigger mechanism for tripping the energy storage limiting mechanism. The integrated spring energy storage transmission device has a mechanical interlocking function and can prevent misoperation, the integrated switch structure ensures firmness and mechanical reliability, connecting wires among equipment during dispersed installation are eliminated, the occupied area is reduced by more than 40% compared with traditional discrete arrangement, centralized maintenance is convenient, and the integrated switch structure is simple in structure and convenient to operate. And the overhaul and maintenance work efficiency is improved.
Owner:SICHUAN HUIYOU ELECTRICAL CO LTD

Reducing mechanism for automatic change-over switch and automatic change-over switch

The utility model discloses a speed reducing mechanism for an automatic change-over switch and the automatic change-over switch, and relates to the technical field of low-voltage electric appliances. The speed reduction mechanism for the automatic change-over switch comprises a speed reduction wheel and a rocker, the speed reduction wheel is movably arranged on an output shaft of an operating mechanism of the automatic change-over switch in a sleeving mode, a speed reduction rail is arranged on the speed reduction wheel, and the rocker is connected with the speed reduction wheel. The output part of the operating mechanism is abutted against the speed reduction wheel after running for a certain idle stroke, the speed reduction wheel is forced to rotate, and the rocker is driven to move along the speed reduction track to decelerate rotation of the output shaft. The speed reducing mechanism for the automatic change-over switch and the automatic change-over switch can solve the problem of power supply short circuit caused by too fast switching of the moving contact between the common closing position and the standby closing position in the prior art.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1

Innovative energy storage loop system for operating mechanism of medium-voltage switch cabinet

The invention relates to the field of energy storage loop monitoring, and particularly discloses an innovative energy storage loop system for an operating mechanism of a medium-voltage switch cabinet, which realizes soft start and contactless control of an energy storage motor by introducing a dynamic motor control circuit. The multistage stroke detection device replaces a mechanical limit switch, provides real-time and continuous position monitoring for the energy storage mechanism, and thoroughly eliminates feedback lag and inaccuracy. The core energy storage state analysis unit can identify abnormal working conditions in the energy storage process in real time through intelligent acquisition, analysis and decision making of signals. Besides, the power supply unit provides a stable operation basis, and the bidirectional communication interface ensures information interaction between the system and the external environment, so that an intelligent energy storage ecological system with controllable closed loop, feedback of state and early warning of fault is jointly constructed, and the response speed and the operation stability of the medium-voltage switch cabinet operating mechanism are comprehensively improved.
Owner:JIAXING HENGTONG ELECTRIC CONTROL EQUIP

Isolation switch and control method thereof

The invention relates to an isolation switch and a control method thereof. The isolating switch comprises a management system (100) which judges the opening and closing state of the isolating switch by receiving a contact signal of the isolating switch (200); a processing unit (210) which receives the control signal from the management system (100) and transmits a driving signal; the driving motor (230) is used for controlling the executing mechanism (240) to act according to the driving signal; the executing mechanism (240) is driven by the driving motor (230) to perform opening and closing actions of the isolating switch (200); the current sampling unit (250) is used for sampling a current signal of the driving motor (230) and feeding back the sampled current to the processing unit (210), and in the processing unit (210), the actual position of the execution mechanism (240) is judged according to a comparison result of the sampled current and a threshold value.
Owner:SCHNEIDER ELECTRIC IND SAS

Interlocking device for grounding switch and switch cabinet

The utility model provides an interlocking device for a grounding switch and a switch cabinet. The device comprises a program lock, a locking assembly and a limiting assembly. Through the design of the program lock, the locking assembly and the limiting assembly, when the program lock is in a closed state, the operation main shaft is in a closed state, the program lock shields the operation hole, and the first switch in the locking assembly outputs the first signal for locking the electric operation assembly, so that a user cannot manually control the operation main shaft through the operation hole; and the operation main shaft cannot be controlled by controlling the electric operation assembly, so that the misoperation of a user is effectively avoided. When the program lock is in an open state, a user can control the grounding switch to be switched off or switched on by controlling the limiting assembly to control electric operation or manual operation according to own needs, it is guaranteed that the electric operation is switched off during manual operation or the manual operation is limited during electric operation, misoperation is effectively avoided, and the user experience is improved. And personal and equipment safety can be guaranteed.
Owner:XIAMEN HUADIAN SWITCHGEAR

Spring-free magnetic springback type switch button

The invention discloses a spring-free magnetic springback type switch key, which comprises a shell, a shaft rod inserted into the shell, a magnetic column arranged in the shaft rod, an electromagnetic coil positioned in the shell and arranged outside the shaft rod in a surrounding manner, and a trigger assembly mounted in the shell and matched with the shaft rod, the shaft rod is provided with a hollow column body extending downwards, and the magnetic column is located in the hollow column body; an annular wall is arranged on the inner bottom face of the shell in an upward protruding mode, a guide groove matched with the hollow column in the shaft rod is formed, and the guide groove is used for conducting linear guiding on relative matching of the hollow column. And the electromagnetic coil is sleeved outside the ring wall. According to the switch key, the electromagnet is matched with the magnet, rebounding of the key is achieved through magnetic force, and the intensity of feedback force is flexibly changed by adjusting the magnetic force of the electromagnet.
Owner:HUIZHOU HUANNUO ELECTRONIC TECHNOLOGY CO LTD

Operating mechanism of dual-power automatic change-over switch

The invention relates to an operating mechanism of a dual-power automatic change-over switch, which comprises a shell and an automatic change-over assembly, and is characterized in that the automatic change-over assembly comprises a mechanism frame, a motor, a change-over disc, a change-over shaft, a first rotating frame, a first change-over pull plate, two first energy storage springs, a second rotating frame, a second change-over pull plate, two second energy storage springs and a change-over driving part; a driving part is arranged on the side, facing the first rotating frame, of the conversion driving part in a linkage mode, a shifting shaft matched with the driving part is arranged at one end of the first rotating frame, a shifting groove matched with the shifting shaft is formed in the driving part, and one end of the shifting shaft moves along with the first rotating frame and moves in the shifting groove in a reciprocating mode. And linkage matching between the driving piece and the first rotating frame is formed. The circuit breaker has the advantages of simple structure, stable and reliable performance, rapid and reliable conversion and high breaking capacity.
Owner:WENZHOU GELE ELECTRIC APPLIANCES CO LTD

Microwave port 2*2 matrix switch

The invention relates to a microwave port 2 * 2 matrix switch. The microwave port 2 * 2 matrix switch comprises a main body shell; a first conductor assembly and a second conductor assembly; the coaxial transmission assembly is arranged in the main body shell and located between the first conductor assembly and the second conductor assembly, and the upper end of the coaxial transmission assembly is communicated with one of the first microwave port and the second microwave port through the first conductor assembly. The lower end of the coaxial transmission assembly is communicated with one of the third microwave port and the fourth microwave port through the second conductor assembly. The four ports are integrated together, and the coaxial transmission line is arranged inside to form a 2 * 2 rectangular switch layout, so that when the two ports are communicated, compared with the existing technical means of connecting by using an external coaxial transmission line, the transmission distance between the two ports can be effectively shortened, and the loss is reduced.
Owner:BEIJING LEAGUESUN ELECTRONICS

Energy storage mechanism for state-switching operation of electrical control system

The present invention relates to an energy storage mechanism for a state-switching operation of an electrical control system. The energy storage mechanism comprises: a housing; an operation assembly, which comprises an energy storage element; an actuating member, which is connected to an electrical control system state-switching unit; a locking assembly; and an unlocking assembly. The energy storage element is connected to the operation assembly and the actuating member, and by means of changing the relative positions of the operation assembly and the actuating member, the energy storage element stores energy; the operation assembly can be connected to the actuating member by means of the locking assembly to be in a locked state; the operation assembly is then driven to move in an opposite direction, and drives the actuating member to move in the same direction, such that the actuating member drives the position state of the electrical control system state-switching unit to change; the unlocking assembly can release the locked state between the operation assembly and the actuating member after receiving a trigger signal; and the actuating member is driven by energy released from the energy storage element to move, such that the position state of the electrical control system state-switching unit is driven to change again. The present invention can complete free tripping and opening, and can realize free tripping.
Owner:BEIJING GUANGHUA SHITONG TECH

Automatic gear shifting device and gear shifting method for transformer tap switch

The invention provides an automatic gear shifting device and method for a transformer tap switch. The gear shifting device comprises a rack and a lifting mechanism arranged in the middle of the rack, a rotating mechanism is arranged at the lifting end of the lifting mechanism, and a mechanical arm used for clamping the tap switch is arranged at the rotating end of the rotating mechanism; the side edge of the rack is also provided with a visual acquisition and analysis module which is used for acquiring gear image information of the tap switch, analyzing gear shifting execution information and transmitting the gear shifting execution information to the rotating mechanism; the rotating mechanism rotates the tap switch to a corresponding gear based on the gear shifting execution information; the operation risk of personnel can be reduced, the gear shifting efficiency is improved, and the power failure duration of the distribution transformer is effectively shortened.
Owner:STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +3

Isolating switch closing energy storage mechanism and isolating switch

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.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Active circuit breaker, motor controller, electric assembly and vehicle

The invention relates to the technical field of motor controllers, and discloses an active circuit breaker, a motor controller, an electric assembly and a vehicle, the active circuit breaker comprises a conducting strip assembly, the conducting strip assembly comprises a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged at an interval in the width direction of the first conducting strip; and the detonating device is provided with a conductive pin, and the extension direction of the conductive pin is parallel to the thickness direction of the first conductive sheet. According to the active circuit breaker disclosed by the invention, the space in the thickness direction of the first conducting strip can be utilized for mounting the conducting pin, so that the space in the width and length directions of the first conducting strip can be more redundant, other structures of the motor controller are convenient to mount, and the internal space of the motor controller is optimized.
Owner:BYD CO LTD

Rotary actuator

The invention relates to a rotary actuator (1) comprising: - a stator (10), - at least one stator coil (11) which is connected to the stator (10) in such a way that a force acting on the stator coil (11) is transferred to the stator (10); - an armature (20) rotatable about an axis of rotation (2) relative to the stator (10), - at least one armature coil (21) which is connected to the armature (20) in such a way that a force acting on the armature coil (21) is transferred to the armature (20); - Power lines (3) through which at least one stator coil (11) can be energized, - Cable (4) through which the at least one armature coil (21) can be energized, - a rotation angle limiting device (5) by which rotation of the armature relative to the stator is limited to a rotation angle range of 0 to 359 degrees.
Owner:SIEMENS AG

Intelligent circuit breaker on-off structure and intelligent circuit breaker

The invention discloses an intelligent circuit breaker on-off structure and an intelligent circuit breaker, and relates to the technical field of power grid protection equipment.The on-off structure comprises a conducting rod, the conducting rod comprises a first rod body and a second rod body, each of the first rod body and the second rod body is provided with a contact matched with the other rod body, and the on-off structure further comprises a driving mechanism; the driving mechanism is an electromagnetic driver comprising a shell, a movable iron core and an electromagnetic coil, permanent magnet modules are arranged at the two ends of the electromagnetic coil, and each permanent magnet module comprises a first permanent magnet and a second permanent magnet; according to any permanent magnet module, a first permanent magnet is fixed to a shell, and a second permanent magnet is fixed to a second rod body; the movable iron core is fixed on the second rod body, the circuit breaker comprises the on-off mechanism, and the structure provided by the scheme has the characteristics of being simple in structure, high in reliability and favorable for simplifying energy supply design.
Owner:CHENGDU HANDU TECH

Full-automatic intelligent temperature controller

The invention belongs to the technical field of industrial temperature controllers, and particularly relates to a full-automatic intelligent temperature controller, which comprises a wiring bottom box and an integrated top box, and is characterized in that the wiring bottom box comprises a bottom cover; the integrated top box comprises a top cover, and a temperature acquisition plate is mounted on the top cover; a movable wiring terminal and a fixed wiring terminal are installed in the bottom cover, and the movable wiring terminal and the fixed wiring terminal are respectively connected with the temperature acquisition board. When an electric appliance is short-circuited, the stepping motor drives the rotating disc and the sliding head to rotate, the insulating rod is separated from the moving contact, the moving contact is disconnected from the fixed contact under the action of the spring, then the electromagnet is reversely electrified, the electromagnet and the permanent magnet on the air cylinder repel each other, and the sliding head is separated from the rotating disc; when the temperature of the circuit drops, the stepping motor drives the turntable to rotate through the belt, and the sliding head is separated from the turntable, so that the temperature controller is in a disconnected state when the turntable rotates, and secondary damage of the electric appliance caused by automatic connection of the temperature controller after the temperature drops is avoided.
Owner:HAINA INTELLIGENT CONTROL (SHENZHEN) CO LTD

Electric switch and power distribution system

Provided in the present application are an electric switch and a power distribution system. The switch comprises an insulating housing and an internal element; the insulating housing comprises a first cavity and second cavities for accommodating a switch system; connection ends of the switch are arranged at two ends of the second cavities respectively; the first cavity and the multiple second cavities are arranged in a vertically stacked mode; the vertical axes or central axes of connection devices of the connection ends corresponding to different phases or poles are coaxial or non-coaxial; a moving contact is driven by a control mechanism to rotate or / and move.
Owner:SOOAR TIANJIN ELECTRICAL EQUIP CO LTD

Dual-power change-over switch

The invention discloses a dual-power change-over switch, which comprises a shell, a rotating shaft, a moving contact, a handle and an automatic operation device, the shell comprises a shell seat I and a shell seat II which are oppositely combined to form a mounting cavity; the handle is rotatably arranged at the upper part of the shell and is linked with the rotating shaft; an upper arc-shaped plate and a lower arc-shaped plate which are bent upwards are arranged on the upper portion of the first shell base, an arc-shaped sliding way is formed between the upper arc-shaped plate and the lower arc-shaped plate, an arc-shaped installation groove is formed in the position, on the upper side of the lower arc-shaped plate, between the upper arc-shaped plate and the second shell base, and an arc-shaped receding groove is formed in the inner side of the upper portion of the second shell base. The connecting part is matched with the rotating shaft in an inserting mode, the inserting direction is consistent with the direction that the limiting inserting block is inserted into the arc-shaped sliding way, a downward arc-shaped limiting face is arranged in the arc-shaped receding groove, and the arc-shaped limiting face downwards abuts against and limits the connecting part; the structure of the dual-power change-over switch is optimized, the dual-power change-over switch is convenient to assemble, the switch performance is stable, and the dual-power change-over switch has good practicability and generalizability.
Owner:ZHEJIANG JOTTA ELECTRIC

Rotor rotator and rotor for a motorized dual circuit, dual voltage-sensing multi-pole rotary battery switch

A rotor rotator and rotor system for a multi-pole electrical rotary battery switch having a rotor with a top surface and a bottom surface and a key insert opening on the top surface. One or two bus plate connectors are held in chambers on the bottom surface of the rotor. A rotor rotator has a servo motor with a motor gear in the rotor rotator, a switch nob connector at a top end of the rotor rotator, and a rotor key shaft at a bottom end of the rotor rotator which inserts into the key insert opening of the rotor. A programmable printed circuit board with a processor and memory are positioned around the rotor rotator and provide electrical current to the servo motor. Electrical connector poles provide electrical current to the printed circuit board by means of electrical conducting springs. The switch operates both automatically and manually.
Owner:WORSHAM DAVID

Operating mechanism and fusion switch

An operating mechanism and a fusion switch relate to the low-voltage electrical field. The operating mechanism comprises a driving assembly, the driving assembly comprises a rotating shaft, a main loop driving gear and a pre-charging driving gear, and the main loop driving gear and the pre-charging driving gear are arranged on the rotating shaft in a penetrating mode. The main loop driving gear rotates by a first angle and drives the main loop energy storage part to rotate for energy storage, and the pre-charging driving gear rotates by a second angle and drives the pre-charging loop energy storage part to rotate for energy storage; when rotating to a preset position, the main loop energy storage part releases energy and drives the main loop switch body to be switched on; when rotating to a preset position, the pre-charging loop energy storage part releases energy and drives the pre-charging loop switch body to be switched on; the second angle is larger than the first angle, so that the pre-charging loop energy storage part rotates to a preset position before the main loop energy storage part. According to the operating mechanism, the radius ratio of the main loop driving gear to the pre-charging driving gear can be adjusted so as to be matched with the corresponding rotation angles of the main loop switch body and the pre-charging loop switch body during closing, and the flexibility of the overall layout is improved.
Owner:LIANGXIN ELECTRICAL (HAIYAN) CO LTD +1

Closing gate defense device of high-voltage distribution box and closing gate method of closing gate defense device

The invention discloses a closing gate defense device of a high-voltage distribution box and a closing gate method of the closing gate defense device. The closing gate defense device of the high-voltage distribution box comprises a hinge box installed on a box door of the high-voltage distribution box. Comprising an insulating and flame-retardant inner side lever; an inner bevel gear is arranged at one end of the inner side lever, and the circle center of the inner bevel gear is hinged into the hinge box; the other end of the inner side lever is hinged with a closing operation handle in the high-voltage distribution box through a connecting piece, and comprises an insulating and flame-retardant outer side lever; an outer bevel gear is arranged at one end of the outer side lever, the circle center of the outer bevel gear is hinged to the interior of the hinge box, and the outer bevel gear is meshed with the inner bevel gear; the other end of the outer side lever extends towards the rear side of the high-voltage distribution box body, the outer side lever is pulled upwards in the longitudinal direction, and the inner bevel gear is driven to rotate through the outer bevel gear. According to the invention, the impact force generated by electrical explosion is guided to the right front side or the lateral front side of the box body, so that the casualty probability is greatly reduced, and the safety level of switching-on operation is improved.
Owner:JIANGSU RENHENG ELECTRIC CO LTD

Switching device

A switching device comprises a shell, a contact system and two electromagnetic systems, the contact system and the two electromagnetic systems are arranged in the shell, the two electromagnetic systems are oppositely arranged on the two sides of the contact system, and each electromagnetic system comprises an upper armature and a coil used for driving the upper armature to move. The upper armatures of the two groups of electromagnetic systems are connected through a linkage shaft, the contact system comprises a static contact and a moving contact 5 arranged on a contact support 4, the linkage shaft is connected with the contact support, and the two groups of electromagnetic systems respectively drive the contact support to move through the linkage shaft. The contact support drives the moving contact to be in contact with or separated from the static contact, the driving force is large, the action response is fast, the balance is good, and the height of the switching device can be reduced.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

Active circuit breaker, motor controller, electric assembly and vehicle

The invention relates to the technical field of motor controllers, and discloses an active circuit breaker, a motor controller, an electric assembly and a vehicle, the active circuit breaker comprises a conducting strip assembly, the conducting strip assembly comprises a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged at an interval in the width direction of the first conducting strip; the detonating device is arranged between the first conducting strip and the second conducting strip, the detonating device is provided with a conducting pin, the extending direction of the conducting pin is parallel to the thickness direction of the first conducting strip, the detonating device is provided with a first firing pin and a second firing pin, the first firing pin is used for impacting the first weak part, and the second firing pin is used for impacting the second weak part. According to the active circuit breaker disclosed by the invention, the space in the thickness direction of the first conducting strip can be utilized for mounting the conducting pin, so that the space in the width and length directions of the first conducting strip can be more redundant, other structures of the motor controller are convenient to mount, and the internal space of the motor controller is optimized.
Owner:BYD CO LTD

Current-limiting tripping device and fusion switch

The utility model provides a current-limiting tripping device and a fusion switch, and relates to the low-voltage electrical field. The current-limiting tripping device comprises an operating mechanism, the operating mechanism comprises an energy storage module and a tripping module, and when a pre-charging loop switch body and a main loop switch body of the fusion switch are switched on through manual or electric operation, the energy storage module can store energy and is locked with the tripping module; the tripping module is connected with the main loop switch body, the main loop switch body comprises a magnetic induction coil, the magnetic induction coil is electrically connected with the tripping module through the circuit board, and the magnetic induction coil is used for sampling current of a main loop of the fusion switch and driving the tripping module and the energy storage module to release limitation through the circuit board when the current of the main loop is larger than a preset value. The energy storage module releases energy so that the main loop switch body is tripped and opened. According to the current-limiting tripping device, tripping and opening can be rapidly carried out when large current appears in a main loop, the fusion switch is protected in time, and the reliability and the safety are improved.
Owner:LIANGXIN ELECTRICAL (HAIYAN) CO LTD +1

Mechanical actuation trigger type pulse driving source device

The invention provides a mechanical actuation trigger type pulse driving source device. The mechanical actuation trigger type pulse driving source device comprises a rectifying and filtering module, a high-frequency boosting module, a voltage doubling rectifying module, a pulse modulation module, a trigger module and a control loop electrically connected with the high-frequency boosting module, the voltage doubling rectifying module and the trigger module. The rectifying and filtering module is used for performing alternating current-direct current conversion; the high-frequency boosting module is used for receiving the direct-current signal, performing inversion boosting and then outputting a high-voltage alternating-current signal; the voltage-multiplying rectification module is used for receiving the high-voltage alternating current signal and outputting a high-voltage direct current signal through voltage-multiplying rectification; the pulse modulation module is used for charging and energy storage; the trigger module is used for enabling the pulse modulation module to establish a discharge loop to discharge a load when the high-voltage direct-current signal reaches a preset value; and the control loop is used for controlling the high-frequency boosting module and the triggering module and monitoring the output of the voltage doubling rectifying module. The pulse driving source device has the advantages of few switch stages, small stray parameters, wide trigger dynamic range and light weight.
Owner:NAVAL UNIV OF ENG PLA