1312results about "Protective switch terminals/connections" patented technology

The invention discloses a small residual-current circuit breaker, which comprises a shell, an operating mechanism, a residual-current release and a transmission rod, when the electric leakage tripper is actuated, an ejector rod of the electric leakage tripper pushes the transmission rod, so that the transmission rod rotates from a reset position to an actuating position, and the transmission rod pushes the mechanism assembly to unlock in the rotating process, so that the operation mechanism is converted from closing to tripping. The rotation center of the handle and the rotation center of the mechanism assembly are both located in the first space, and the handle is located between the electric leakage release and the mechanism assembly in the length direction; the handle is provided with a reset part, and after the electric leakage release is actuated, the reset part impacts the transmission rod to enable the transmission rod to return to the reset position from the actuation position in the process that the handle is converted from closing to tripping; the position relation of the electric leakage tripper, the operating mechanism and the like is rearranged, so that the product structure is more compact, and the size of the circuit breaker in the length direction is reduced.

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker with a reclosing mechanism, which comprises a shell, a circuit breaker handle is rotationally arranged in the shell, an operating rod and at least three gears meshed in sequence are further rotationally arranged in the shell, and the tooth number of each gear is gradually increased in sequence. The two gears located on the two sides are a small gear and a large gear respectively, the number of teeth of the small gear is smaller than the number of teeth of the large gear, the operating rod is fixedly connected with the small gear, and the large gear is in transmission connection with a circuit breaker handle. Speed reduction and torque increase are realized through the gear train, so that the force required to be applied when a user manually operates the handle of the circuit breaker is remarkably reduced, the operation intensity is reduced, the convenience of manual reclosing is improved, and the manual reclosing device is particularly suitable for a large-current circuit breaker or an occasion requiring a relatively large operation torque.

The invention belongs to the technical field of battery charging equipment, and particularly relates to a high-voltage isolation centralized charging cabinet and a charging method thereof.The high-voltage isolation centralized charging cabinet comprises a charging cabinet body, a plurality of charging cavities are arrayed in one side of the charging cabinet body at equal intervals, a first mounting groove is formed in the other side of each charging cavity, and a separation mechanism is arranged in each first mounting groove; an electric push rod stretches to drive a top disc to move, drive a slope clamping block to retract into a first inserting groove, the electric push rod continues to stretch, at the moment, a square inserting rod is driven to move towards one side, a push plate is matched with a door opening mechanism, the bottom of a box door moves towards one side to be opened, meanwhile, an on-fire battery is pushed to be separated from a charging cavity, and the electric push rod retracts and resets; the second spring drives the square inserting rod to reset and move and drives the push plate to return to the initial position; according to the invention, the on-fire battery can be quickly pushed out of the charging cavity, the battery is prevented from burning and exploding in the charging cavity, and a reliable guarantee is provided for the safety of the whole charging environment.

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.

The present disclosure relates to a circuit breaker having an energy releasing mechanism of an opening / closing mechanism part, and a circuit breaker according to an embodiment of the present invention comprises: an input latch locking device rotatably formed to restrict or release an input latch according to rotating angles thereof; an interlock movement rail which is installed on a cradle and in which an inspection position, a preparation position, and a driving position are configured; an interlock member for operating at least one among the input latch and a trip latch in a section excluding the inspection position, the preparation position, and the driving position while vertically moving in association with a relative movement of the interlock movement rail; and at least one link member connected between the interlock member and the input latch locking device and switching a linear movement in a vertical direction of the interlock member to a rotation movement, thereby rotating the input latch locking device.

The invention discloses a plug-in circuit breaker which comprises a mounting plate, a plug-in circuit breaker body arranged on the right side of the mounting plate and a connecting assembly arranged on one side of the mounting plate, the connecting assembly comprises a heat dissipation mechanism arranged on one side of the plug-in circuit breaker body, and a limiting mechanism is arranged on the lower portion of the plug-in circuit breaker body. A damping mechanism is arranged on one side of the mounting plate, the slope clamping block movably penetrates through the movable groove and is clamped with the clamping groove, one end of the first spring is fixedly connected with the movable block, the outer side of the movable block is fixedly connected with the pull rod, and one end of the first inner groove is fixedly connected with the ejection column; and the mounting sleeve is mounted at the bottom of the plug-in circuit breaker body through the mounting block. The problems that according to an existing device, a dustproof net is inconvenient to disassemble and clean manually, after the dustproof net is used for a long time, meshes are prone to being blocked, the ventilation effect of the dustproof net is affected, and the subsequent heat dissipation effect is affected are solved.

The invention discloses a molded case circuit breaker, which comprises a shell, and an electric operating mechanism is arranged in the shell. The electric operating mechanism comprises a moving contact action assembly with a rotating block and a shifting rod, a sliding block which is arranged on the shell in a sliding manner and can drive the shifting rod to shift, an operating shaft which can drive the sliding block to slide and is provided with an operating hole site, and a motor speed reduction assembly which can drive the operating shaft to rotate, and the operating shaft is in linkage connection with a shifting shaft block; the sliding block is provided with a matching groove corresponding to the shifting shaft block, the operation shaft rotates to drive the shifting shaft block to shift in the matching groove so as to drive the sliding block to slide, the shell is provided with a cover plate capable of shielding the operation hole position in a sliding mode, and the shell is further provided with a rotating lock and a tripping button located on one side of the rotating lock. By arranging the locking microswitch, the manual microswitch, the first microswitch and the second microswitch, signal feedback of a manual operation state, a rotating lock locking state and a current circuit breaker state can be realized.

The utility model discloses a mounting structure of an electric leakage protection module, which comprises a plurality of circuit breakers and the electric leakage protection module, the electric leakage protection module is spliced with the plurality of circuit breakers, and one end of the electric leakage protection module spliced with the circuit breakers is provided with a plurality of rigid first conductive plates. Corresponding ends of the plurality of circuit breakers are provided with rigid second conductive plates, one end of the electric leakage protection module is provided with an insertion block or a slot, and one end of each circuit breaker is provided with a slot or an insertion block which is in insertion fit with the insertion block or the slot of the electric leakage protection module along the longitudinal direction. The first conductive plate and the second conductive plate can be stacked together in the longitudinal direction while the electric leakage protection module and the circuit breaker are connected in an inserted mode through the inserting block and the inserting groove, the first conductive plate and the second conductive plate are connected and fixed through screws, an opening is formed in the upper portion of the splicing position of the circuit breaker and the electric leakage protection module, and a cover plate is arranged at the opening. The utility model has the advantages of simple assembly process and strong reliability.

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.

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.

The invention provides a miniature breaker with a novel current detection assembly. The miniature breaker with a novel current detection assembly includes a breaker main body and a novel current detection assembly, wherein the novel current detection assembly includes a Hall magnetic field sensor, a current detection wire, and a Hall magnetic field sensor detection circuit board; a detection Hallmagnetic field sensor in the Hall magnetic field sensor without a magnetic core is used to detect a magnetic field which is generated from the current detection wire, and an environment Hall magneticfield sensor in the Hall magnetic field sensor is used to detect a background magnetic field in the environment; and the difference values detected by the detection Hall magnetic field sensor and theenvironment Hall magnetic field sensor are processed to obtain the magnitude of the current, so as to eliminate the interference of the background magnetic field and enable the detected current to bemore accurate. Therefore, the breaker with the novel current detection assembly can accurately perform opening and closing.

The invention discloses a dual redundant drive type self-adaptive double-speed circuit breaker, and relates to the technical field of circuit breakers. Comprising a main body, a locking assembly is arranged on one side of a connecting piece, a cleaning assembly is arranged at the top of a second bevel gear, and a moving assembly is arranged in a cleaning plate, a lead screw rotates to drive a sliding column to move, then a base is driven to move synchronously, and the base moves to drive a positioning column to move into the connecting piece; the sliding column drives the lock catch to rotate through an inclined plane arranged on the sliding column, the lock catch and the protruding position of the connecting piece are in a locking state after the lock catch rotates, the position of the touch panel in a disengaged state is locked, and potential safety hazards caused by the fact that the touch panel makes contact with the contact again after a worker mistakenly touches the handle are prevented. And after the inclined surface of the sliding column is separated from the lock catch, the lock catch is driven to rotate through the first spring, so that the locking of the connecting piece is released.

The invention relates to the technical field of leakage protectors, in particular to a leakage protector convenient to install and capable of using electricity safely, which comprises a leakage protector main body, a plurality of wire inlet holes used for connecting wires are formed in the outer side of the top of the leakage protector main body, and binding mechanisms are fixed to the tops and the bottoms of the outer sides of the wire inlet holes. The binding mechanism comprises a supporting plate, two connecting rods are rotationally arranged at one end of the supporting plate, and a rubber wheel is rotationally arranged between the two connecting rods. According to the electric leakage protector, the pulling resistance of the wire is increased through the two rubber wheels, the phenomenon that the wire is pulled off is reduced, when the wire is pulled by large force to move, a copper wire of the wire moves into the elastic bag, an electric shock accident is prevented, and the use safety of the electric leakage protector is improved; and meanwhile, the rubber wheel rotates and winds the traction belt along with the movement of the wire, the traction belt pulls the elastic bag to tension the outer side of the elastic bag, and a user observes the tensioning phenomenon of the elastic bag to conveniently check whether the wire is pulled out of the mounting position.

The invention relates to the technical field of circuit breakers, in particular to a fast breaking circuit breaker which comprises a shell and a contact assembly arranged in the shell, the contact assembly comprises a movable contact arranged in a rotating mode and a fixed contact arranged in a fixed mode, and a movable contact driving arm is further arranged in the shell in a rotating mode. The moving contact driving arm is used for driving the moving contact to rotate until the moving contact is disconnected with the static contact, an electromagnetic tripping assembly is further arranged in the shell, the electromagnetic tripping assembly comprises a driving piece and a transmission piece arranged in a rotating mode, and the transmission piece is used for abutting against the moving contact driving arm to limit rotation of the moving contact driving arm. And the driving piece is used for generating magnetic force and enabling the transmission piece to rotate until the transmission piece is separated from the moving contact driving arm. Through the innovative design of the electromagnetic tripping assembly, rapid breaking of the circuit breaker is realized.

The invention relates to a metering box with a junction box, and relates to the technical field of metering boxes, the metering box comprises a box body and a box door installed on the box body, and the inner wall of the box body is fixedly provided with a substrate for installing a circuit breaker; a fixing shell and a wiring block are arranged in the box body, one side of the fixing shell is detachably installed on the inner wall of the substrate, and a fixing notch for the wiring block to be installed in is formed in the side face, away from the substrate, of the fixing shell; one side of the wiring block is fixedly provided with a conducting strip connected with a binding post on the circuit breaker, and one side, far away from the conducting strip, of the wiring block is provided with a plurality of wiring holes for connecting and fixing cables; the plurality of cables can be pre-installed in the corresponding wiring holes and are electrically connected with the conductive sheets. In the application, during subsequent installation, only the wiring block provided with the cable needs to be integrally installed in the fixing gap of the fixing shell, and then the conducting strip on the wiring block is connected with the wiring terminal of the circuit breaker.

The circuit breaker comprises a shell, an operating mechanism and a bimetallic strip, the operating mechanism comprises a draw bar shaft, a jump pin, a lock catch, a draw bar and a draw bar spring, the draw bar spring is used for driving the lock catch to rotate in the hasp fit direction with the jump pin, the draw bar comprises a rotating part, a triggering part and a re-buckling part, and the triggering part and the re-buckling part are integrally formed with the rotating part. The draw bar shaft is sleeved with the draw bar through the rotating hole, the draw bar can rotate around the draw bar shaft and slide in the axial direction of the draw bar shaft, and the draw bar directly locks the lock catch through the re-buckling part; and the thermal adjusting knob is used for adjusting the distance between the touch piece and the triggering part of the traction rod by adjusting the displacement of the traction rod in the axial direction of the traction rod shaft. According to the circuit breaker, the draw bar for directly locking the lock catch is unlocked by the bimetallic strip, the draw bar shaft serves as a rotating shaft and a sliding guide shaft of the draw bar, the thermal adjusting knob directly adjusts the position of the draw bar to realize a thermal adjustable function, and the draw bar integrates the thermal adjustable function and the re-buckling and tripping functions.

The invention discloses overload protection equipment for a self-open circuit type charging pile, and relates to the related field of charging piles, the overload protection equipment comprises a charging pile cabinet body, the rear side of the charging pile cabinet body is installed at the horizontal plane position through a supporting seat, and heat dissipation openings are formed in the left and right side walls of the charging pile cabinet body; and a mounting plate is mounted in the middle of the interior of the charging pile cabinet body, a swing mechanism is further arranged on the outer side of the top of the driving cam part in an attached mode, one side of the swing mechanism acts on the side face of an air injection mechanism, and the air injection mechanism is mounted at the position above an electric appliance element in the charging pile cabinet body. According to the overload protection equipment for the self-open-circuit type charging pile, the temperature of the control module is monitored in real time through the temperature sensor, a cam part is rapidly linked and driven during overload, a movable plate and a contact block of the open circuit mechanism are driven to move, an elastic normally-touch switch is accurately triggered by means of a trapezoidal contact groove, air injection and heat dissipation are conducted on electrical components in a targeted mode, and the overload protection effect is improved. The influence of heat accumulation on elements is reduced, and the use safety and the service life of the charging pile are remarkably improved.

The invention provides an electromagnetic leakage protection circuit breaker which comprises a shell, a shell cover, a short-circuit protection unit installed on the shell, a test device, a contact assembly and an operation device used for opening or closing the circuit breaker, and further comprises a leakage protection unit. The electric leakage protection unit comprises an electric leakage tripping mechanism and a transmission assembly which is in transmission fit with the operating mechanism, the electric leakage tripping mechanism comprises a base, an electromagnetic tripper, a tripping rod, a buckle plate, a spring seat, a positioning piece and a reset piece which are installed in the second cavity, and the base is provided with a first connecting column which is in pivot fit with the tripping rod; the base is provided with a second connecting column which is pivoted and matched with the reset piece and located below the first connecting column, the tripping rod is provided with a first limiting groove, the reset piece is sleeved with a first torsional spring, one end of the first torsional spring is located in the first limiting groove and abuts against the inner wall of the first limiting groove, and the other end of the first torsional spring abuts against the end of the reset piece. According to the electric leakage tripping mechanism, all parts are uniformly stressed, and tripping is stable.

The present invention provides a low-voltage circuit breaker, which belongs to the technical field of circuit breakers. The invention includes a circuit breaker body, wiring terminals and guide rails, and also includes: a limit clamping assembly, a blocking assembly, and a clamping assembly; by pulling a pull rod and pressing a dial rod, the wiring terminals and the movable clamp can be quickly unlocked to achieve rapid replacement of the circuit breaker, and during the wiring process, the internal circuit of the circuit breaker is in a disconnected state; the protective frame formed by the sliding block and the fixed baffle, and the expansion and contraction of the airbag, together fix and seal the wiring terminals, reduce the influence of external factors such as water vapor and dust on the wiring port, and prevent staff from accidentally touching it, further enhancing the safety of operation; the clamping assembly can better match wiring terminals of different specifications through the expansion and contraction of the airbag and the compression and release of the spring, ensure the stability of the wiring terminals, and effectively reduce the risk of poor electrical connection or damage caused by shaking of the wiring terminals.

The invention relates to the technical field of low-voltage switch cabinets, in particular to an interlocking mechanism, a hand-cranking movable plug-in type assembly and a hand-cranking movable plug-in type unit. The interlocking mechanism comprises a position interlocking mechanism and a closing interlocking mechanism; the rear end of a transition connecting rod of the closing interlocking mechanism is in linkage fit with a position locking plate through a linkage structure, and an interlocking part is arranged on a closing interlocking plate and used for being matched with the front end of the transition connecting rod to achieve closing interlocking. A plugging assembly rack of the hand-cranking movable plugging assembly is located behind the closing interlocking mechanism, and the rear end of the closing interlocking support is installed at the front end of an assembly rack bottom plate of the plugging assembly rack. The beneficial effects are that the closing interlocking mechanism and the position interlocking mechanism can be arranged front and back; the hand-cranking movable plug-in type unit can be maintained without power failure, the depth of a unit chamber can be 300mm, the depth of a plug-in assembly rack can be 200mm, and the hand-cranking movable plug-in type unit has the functions of isolation-connection position positioning, hand-cranking propelling mechanism locking, circuit breaker switching-on locking and circuit breaker switching-off unlocking.

The invention discloses a circuit breaker switch and intelligent detection system with real-time detection, which comprises a circuit breaker body, a contact system, an arc extinguishing system and an operating mechanism are arranged in the circuit breaker body, the contact system comprises a moving contact and a static contact, the bottom of the moving contact is fixedly connected with a bimetallic strip through a soft connecting line, and the bimetallic strip is fixedly connected with the arc extinguishing system through the soft connecting line. The invention relates to the technical field of circuit breakers. According to the circuit breaker switch with the real-time detection function and the intelligent detection system, a bimetallic strip is connected to the bottom of a moving contact, one end of the bimetallic strip is connected with a connecting piece made of a copper-molybdenum composite material, a box body made of red copper is installed at the bottom of the connecting piece, tin-bismuth alloy is injected into the box body, a heat pipe is attached to the bottom of the box body, and heat dissipation fins are installed at one end of the heat pipe. And the copper-molybdenum composite material connecting sheet has extremely low thermal expansion and high thermal conductivity, so that the efficient transfer of heat can be ensured, and the influence of thermal expansion on the structural stability can be reduced.

The utility model discloses a rapid opening and closing primary and secondary fusion complete column-mounted circuit breaker, which belongs to the technical field of power grid equipment, and comprises a base and a plurality of pole columns arranged on the base, an operating mechanism for driving an insulating column to move is arranged in the base, and the operating mechanism comprises an electromagnetic coil, a driving rod, a linkage mechanism and a locking mechanism, a movable iron core matched with the electromagnetic coil is arranged on the driving rod, and the insulating column in each pole is connected with the driving rod through a linkage mechanism; the linkage mechanism comprises a plurality of fixed seats which are fixed on the driving rod at intervals, and the insulating columns in the pole columns correspond to the plurality of fixed seats one by one; the top of the fixing base is concaved inwards to form a positioning cavity, a first positioning plane and a second positioning concave cambered surface are formed at the bottom of the positioning cavity, and the first positioning plane is higher than the second positioning concave cambered surface. According to the primary and secondary fusion complete column-mounted circuit breaker, the speed, safety and stability of opening and closing can be remarkably improved, and the energy consumption of opening and closing and the damage rate of the whole equipment are reduced.

The utility model relates to the field of low-voltage electric appliances, in particular to a circuit breaker, the length direction, the width direction and the height direction are respectively a direction d1, a direction d2 and a direction d3, and the size of a shell in the direction d2 is larger than that of the shell in the direction d3; the contact system comprises a moving contact and a static contact which are matched for use, and the rotating shaft direction of the moving contact is parallel to the direction d3; the first bus clamp and the second bus clamp are oppositely arranged in a spaced mode in the direction d3, each of the first bus clamp and the second bus clamp comprises a pair of clamping plates which are oppositely arranged in the direction d3 and used for clamping an external conductor, and each clamping plate extends to the two ends of the shell in the direction d2; the circuit breaker is higher in current carrying capacity.

The utility model discloses an overload protection switch, and belongs to the technical field of switches. The overload protection switch comprises: a housing; the ratchet wheel key assembly is arranged on the shell; one end of the elastic contact piece is installed on the shell, the other end of the elastic contact piece is provided with a contact part, and the contact part abuts against the ratchet wheel key assembly; the first end of the bimetallic strip is installed on the shell, and the second end of the bimetallic strip is provided with a static contact which is separably connected with the contact part; and the reset linkage piece is rotatably arranged on the shell, the reset linkage piece is provided with a connecting arm and a reset arm, the connecting arm is used for connecting the contact part, and the reset arm is used for connecting the second end of the bimetallic strip. The overload protection switch provided by the utility model has reliable overload protection performance and stable and reliable overload protection switch functions.

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.

A miniature residual current circuit breaker, comprising a housing (10), a handle (12), an L-line circuit breaker unit (13), and an N-line leakage protection module (20). The L-line circuit breaker unit (13) is placed in a circuit breaker accommodating cavity (1000), the N-line leakage protection module (20) is placed in a leakage protection accommodating cavity (1001), and a zero-sequence current transformer (14) is provided in an accommodating hole (1002). The N-line leakage protection module (20) comprises a latch (21), a U-shaped pull rod (22), a trip lever (23), a torsion spring (24), a contact carrier (25), a spring (26), an N-line moving contact (27), and a leakage tripping assembly (30). The leakage tripping assembly (30) comprises a leakage tripping device (31), a linkage rod (32), and a tripping member (33). A wire is provided on a wiring terminal of the L-line circuit breaker unit, and one end of the wire passes through the zero-sequence current transformer (14) and is connected to the leakage tripping device (31); and one end of the tripping member (33) is provided with a tripping inclined face (331) abutting against the trip lever (23), and the tripping inclined face (331) acts along with the tripping member (33) and drives the trip lever (23) to act, achieving unlocking of the trip lever (23) and the latch (21). The miniature residual current circuit breaker has the advantages of a simple structure, stable and reliable performance, a sensitive tripping action, and a small size.

The invention discloses a circuit breaker device with a fireproof function and a method, and relates to the technical field of circuit breaker fire prevention. The device comprises an insulating shell and an insulating auxiliary shell, the insulating shell and the insulating auxiliary shell are the same in specification, the insulating auxiliary shell is fixedly installed on one side of the insulating shell, a circuit breaker assembly and an active circuit breaking protection assembly which are used for protecting a circuit are arranged in the insulating shell, and the two ends of the insulating shell are each provided with an auxiliary clamping assembly used for limiting a wire. According to the invention, through the arrangement of the active circuit break protection assembly and a dual circuit break mechanism of component conventional short circuit protection and active temperature linkage protection, when the conventional short circuit protection mechanism is not triggered due to a fault, the electromagnetic coil continuously bears large current to generate joule heat, and after the temperature sensor monitors a supercritical temperature, the electromagnetic coil is switched on; a temperature control signal is transmitted to the active circuit breaking protection assembly to trigger the active circuit breaking protection assembly depending on a miniature electric telescopic rod, a lifting block and other structures, a turnover block is driven to turn over, a circuit is forcibly broken, and fire hazards caused by heating due to faults are effectively avoided.

The invention discloses a direct-current circuit breaker, and relates to the technical field of circuit breakers, the direct-current circuit breaker comprises a circuit breaker main body and a connecting wire, and the top of the circuit breaker main body is provided with a wire socket used for being connected with the connecting wire; the device further comprises a protection main body and a detection assembly. The protection main body can protect the joint of the connecting wire and the wire socket. The protection main body is also provided with a locking assembly, and the locking assembly can lock or unlock the connecting wire. A lifting assembly is further arranged on the protection body and can drive the connecting wire to ascend and descend. The detection assembly is used for detecting the working state of the circuit breaker main body, and when it is detected that the working state of the circuit breaker main body is abnormal, the lifting assembly drives the connecting wire to ascend, so that the connecting wire is separated from the wire socket; when the abnormal working state is relieved, the lifting assembly drives the connecting wire to descend and be inserted into the wire socket. When the circuit breaker works abnormally, the wire can be automatically separated, the use safety is fully ensured, and wiring is convenient.

The utility model relates to the field of electric leakage protectors, and discloses an electric leakage protection protector, which comprises an electric leakage protector main body and a mounting rack, and is characterized in that the electric leakage protector main body and the mounting rack are provided with an assembly protection mechanism; the assembly protection mechanism comprises a positioning insertion block, a protection shell, a wedging block, an elastic air bag, an air pipe, a piston rod and a stretching block; the positioning insertion block is clamped with the leakage protector body, the wedging block is clamped with the protective shell, a plurality of threading holes are formed in the protective shell, the elastic air bag is fixedly installed in the threading holes, the air pipe is fixedly installed on the elastic air bag, and the piston rod is fixedly installed at the bottom of the leakage protector body. The piston rod is in sliding sealing contact with the air pipe. The electric leakage protector has the following advantages and effects: the copper core can be prevented from being directly exposed in the air, the protection effect is improved, the electric leakage protector main body can be quickly assembled, and the electric leakage protector is relatively convenient to disassemble and assemble.

The utility model discloses a breaker arc extinguishing exhaust system, which comprises an arc extinguishing chamber body, and a plurality of upper exhaust holes and a plurality of lower exhaust holes which are arranged at the rear end of the arc extinguishing chamber body in a vertically staggered manner, a shell is internally provided with a plurality of groups of partition plate structures which divide an exhaust area into a plurality of exhaust channels, and the plurality of exhaust channels are communicated with the upper exhaust holes and the lower exhaust holes. According to the structure that the partition plate is composed of the upper partition rib and the lower partition rib which abut against each other up and down, in order to avoid the upper exhaust hole and the lower exhaust hole, the staggered parts which are partially overlapped and extend in a staggered mode are arranged between the upper partition rib and the lower partition rib, and the structural layout between the partition ribs and the exhaust holes is reasonably optimized, so that the upper exhaust hole and the lower exhaust hole are prevented from being blocked by the upper partition rib and the lower partition rib; according to the utility model, the arc extinguish chamber body is provided with the plurality of exhaust channels, so that the exhaust smoothness of the arc extinguish chamber body is ensured, the temperature rise and pressure in the arc extinguish chamber are reduced, the explosion risk is reduced, and the electrical insulation performance among the plurality of exhaust channels is realized, thereby improving the arc extinguish capacity and breaking capacity of the product.