554results about "Protective switch details" patented technology

The invention relates to the technical field of high-voltage switch equipment, and discloses a primary and secondary fusion pole-mounted circuit breaker which comprises a base, a front plate is arranged on the front side of the base, the base and the front plate are connected through a connecting plate, a first solid-sealed polar pole is arranged on the top of the base, and a second solid-sealed polar pole is arranged on the top of the front plate. A high-voltage input plate is arranged at the top of the solid-sealed polar pole I, a high-voltage output plate is arranged on one side wall of the solid-sealed polar pole I, the connecting frame is fixedly connected between the solid-sealed polar poles I, the bird repelling mechanism is arranged at the top of the connecting frame and used for repelling birds to prevent the birds from stopping, and the shielding mechanism is arranged at the top of the solid-sealed polar pole I. By means of the bird repelling mechanism, the all-weather and intelligent active bird repelling function is achieved, stable equipment operation is guaranteed, a dual-drive mode combining wind power and solar power is adopted, it is guaranteed that the bird repelling function is uninterrupted, pollution flashover or short circuit faults caused by bird activities to high-voltage insulation parts are effectively avoided, and the equipment operation reliability is improved.

The invention relates to the technical field of pole-mounted circuit breakers, and discloses a primary and secondary fusion pole-mounted circuit breaker, which comprises a circuit breaker and a mounting bracket, a mounting plate is arranged on the mounting bracket, a mounting hole is formed in the mounting plate, an adjusting plate is rotatably connected in the mounting hole, a gradienter is arranged on the adjusting plate, and the gradienter is arranged on the mounting plate. A fixing structure used for fixing the adjusting plate is arranged on the installing plate, the circuit breaker is installed on the adjusting plate, a worker firstly installs the installing support on a wire column, then the adjusting plate is rotated, the adjusting plate is determined to be in a horizontal state through the gradienter, and finally the worker installs the circuit breaker on the adjusting plate through the fixing structure. And the adjusting plate can stably realize the installation of the circuit breaker.

An electric circuit breaker device includes a housing, an igniter, a projectile, and a conductor piece including, between a first connection end portion and a second connection end portion, a cutoff portion to be cut by movement of the projectile, in which a boundary portion with the cutoff portion from which the cutoff portion is cut in the first connection end portion of the conductor piece held in the housing is defined as a first cutting edge portion, and a boundary portion with the cutoff portion from which the cutoff portion is cut in the second connection end portion is defined as a second cutting edge portion, and a groove is formed at a position corresponding to the conductor piece crossing an accommodating space and in a predetermined inter-edge inner wall region positioned between the first cutting edge portion and the second cutting edge portion, in an inner wall surface of the housing.

Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.

The invention discloses a primary and secondary depth fusion protection type pole-mounted circuit breaker, which comprises a primary and secondary depth fusion pole-mounted circuit breaker body, and further comprises a circuit breaker base fixed at the bottom end of the primary and secondary depth fusion pole-mounted circuit breaker body; the sealing bin wraps the periphery of the circuit breaker base, and the joint of the sealing bin and the primary and secondary depth fusion pole-mounted circuit breaker body is arranged in a sealed mode; the bottom frame is fixedly installed on the inner wall of the bottom end of the sealing bin, and the circuit breaker base is fixedly installed at the top end of the bottom frame; the dehumidification mechanism is connected with the sealing bin; the air inlet adjusting mechanism is connected with the dehumidification mechanism; the dehumidification mechanism comprises an air outlet which is formed in the inner wall of the top end of the sealing bin in a penetrating mode, and the air outlet is movably covered with a filter screen; the multiple air inlets penetrate through the inner wall of the bottom end of the sealing bin at the same time; the primary and secondary deep fusion protection type pole-mounted circuit breaker disclosed by the invention has the effects that auxiliary heat dissipation is realized, and meanwhile, moisture can be prevented from directly invading connecting parts of key components.

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.

Provided is an energy storage system, including: an energy storage cabinet, a high-voltage box and power conversion systems that are located in the energy storage cabinet, the power conversion systems are electrically connected to the high-voltage box. The high-voltage box includes a box body with accommodating cavity, circuit breakers electrically connected to electronic components through connecting members, and a first mounting bracket for installing the circuit breakers. The first mounting bracket includes first and second main body portions connected to each other. The first main body portion is installed within the accommodating cavity. Along height direction of the high-voltage box, the circuit breakers are sequentially installed to the second main body portion. The electronic components are located on a side of the second main body portion away from the circuit breakers. The high-voltage box further includes support members connected to the connecting members and the first mounting bracket.

A circuit breaker protecting an electric low-voltage circuit includes a housing with grid-side and load-side connections and a series circuit of a mechanical isolating contact unit on the grid side and an electronic interruption unit on the load side. The mechanical isolating contact unit has a handle opening and closing contacts. A current sensor unit is disposed in a conductor between the isolating contact unit and the interruption unit, for ascertaining a current level of the low-voltage circuit. A control unit is connected to the current sensor unit, electronic interruption unit, and mechanical isolating contact unit. When current and / or current / time thresholds are exceeded, prevention of a current flow in the low-voltage circuit is initiated. A power supply unit supplying energy to the circuit breaker is connected to conductors of the low-voltage circuit between the isolating contact unit and the interruption unit.

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.

The utility model discloses an outdoor electric vehicle charging station integrated security and protection system, which comprises a cabinet body, a fire alarm device, a monitoring device, a lighting device, a drainage device and a barrier gate, a switch, a router and a wire bank are arranged in the cabinet body through a mounting rack, one end of the wire bank is electrically connected with an external power supply, and the other end of the wire bank is electrically connected with a power supply. The other end of the wire row supplies power to a switch, a router, a fire alarm device, a monitoring device, a lighting device, a drainage device and a barrier gate; the switch and the router are connected and then are communicated with the fire alarm device, the monitoring device, a local display and a machine room network switch which are arranged outside the cabinet body through network cables; through integration of the fire alarm device, the monitoring device, the lighting device, the drainage device and barrier gate control, management is facilitated, fire and water level monitoring is added on the basis of an existing security and protection system, hidden dangers can be found in time, monitoring information is sent to a background terminal and a local display through a network cable, and personnel can watch the monitoring information conveniently.

A circuit breaker is configured to ensure electrical safety when working on its circuits. The circuit breaker comprises a housing with an exterior boundary. The housing includes an “integrated” Lock-Off feature. It is integrated to one or more housing components of the circuit breaker not as a separate component to achieve most simplicity and least space used as compared to an “add-on” accessory based Lock-Off feature. The “integrated” Lock-Off feature has a feature that is configured to receive a shackle or a shank of a padlock. The circuit breaker further comprises a built-in Lock-Off mechanism including a handle that is configured to move relative to the feature. The built-in Lock-Off mechanism in combination with the Lock-Off feature is configured to prevent handle from being turned ON with the use of padlock. The padlock prevents circuit breaker from turning ON by impeding the handle from moving to an ON-position.

The utility model provides a low-voltage frame circuit breaker, and relates to the technical field of circuit elements, the low-voltage frame circuit breaker comprises a frame, a circuit breaker, a mounting assembly and a cooling assembly, the circuit breaker is arranged in the frame, and the mounting assembly used for conveniently mounting and dismounting the circuit breaker is arranged on the outer side of the circuit breaker. And a cooling assembly for absorbing heat and cooling is arranged above the mounting assembly. Installation and fixation can be facilitated, the installation efficiency is improved, meanwhile, automatic heat absorption and cooling can be achieved, and the service life is prolonged.

The utility model discloses an electrical primary circuit breaker heat dissipation device, which comprises an installation box, a circuit breaker body is fixedly installed in the inner cavity of the installation box, the left end of the front surface of the installation box is movably connected with a protective door through a hinge, and the left side of the protective door is fixedly connected with a fixed cover. According to the utility model, through the arrangement of the mounting box and the protective door, the circuit breaker body can be contained and protected, external air can be driven to be quickly blown to the surface of the circuit breaker body under the working action of the heat dissipation fan, so that the heat dissipation effect of the circuit breaker body is achieved, and meanwhile, through the arrangement of the dust filter screen, the heat dissipation efficiency is improved. According to the circuit breaker, dust in the air can be effectively filtered in the flowing path of the air conveyed by the heat dissipation fan, the situation that a large amount of dust is stacked and attached to the surface of the circuit breaker body in the long-time operation process and consequently subsequent heat dissipation is affected is effectively avoided, and therefore it is guaranteed that the circuit breaker body can stably operate.

The utility model relates to circuit breaker technical field especially, relates to a low arc plastic shell formula circuit breaker, solved the circuit breaker inconvenient installation and use on the electric appliance in prior art and the problem that the plastic shell is easy to damage in the dismounting process and leads to the unsafe use of circuit breaker. A low arc plastic shell formula circuit breaker, including the body, the surface of body is equipped with several insertion holes, one side of body is fixedly connected with three partition plates, the bottom of body is fixedly connected with bottom block, the inboard of bottom block and partition plate is fixedly connected, the bottom of bottom block is equipped with mounting block, the top of mounting block is equipped with several screw holes, the bottom of mounting block is equipped with mounting mechanism, the inside rotation is connected with screw rod in insertion hole, one end of screw rod is connected with adjacent screw hole threadedly. The utility model guarantees that the circuit breaker body is conveniently fixed on the electric appliance, and can also be safely used.

A contactor device is provided that includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to the shaft, and the shaft is retained in the closed position by the latch. The movable member is biased away from the latch. During an event, a biasing force that biases the movable member away from the latch is overcome. The movable member disengages the latch from the shaft, allowing the shaft to move to the open position. In an example, a movable member is disposed over an opening of a housing of the contactor device.

The utility model discloses a breaker base easy to assemble, which comprises a base, a bottom plate, a connecting nut and a connecting bolt, base holes are arranged at four corners of the base, bottom plate holes are arranged at four corners of the bottom plate, the connecting nut is coaxially and fixedly arranged at one end of the base hole back to the bottom plate, and the connecting bolt is fixedly arranged at the other end of the base hole back to the bottom plate. The connecting bolts penetrate through the bottom plate holes, then penetrate through the base holes and are in threaded connection with the connecting nuts so that the bottom plate can be fixedly installed on the base. According to the circuit breaker base easy to assemble, through the mode that the connecting nuts are fixed on the base, when the base is in butt joint with the bottom plate, the bottom plate and the base can be effectively installed only through the mode that the connecting bolts penetrate through the bottom plate and the base and then are in threaded connection with the connecting nuts.

The utility model discloses an electrical switch unit for electrical equipment, which comprises a circuit breaker main body, the rear side of the circuit breaker main body is provided with an installation clamping groove, the lower end of the installation clamping groove is slidably provided with a fixed clamping plate, and the inner side of the lower end of the circuit breaker main body is rotatably provided with a fixed screw rod through a bearing. A fixing push plate is fixedly installed at the lower end of the fixing clamping plate, a fixing nut is fixedly installed on the inner side of the fixing push plate, the fixing nut is arranged on the outer side of a fixing screw in a screwing and sleeving mode through threads, and a rotary knob is arranged at the lower end of the fixing screw. Through the designed mounting clamping groove and the fixed clamping plate, during use, the fixed screw rod is rotated through the knob, and the fixed screw rod drives the fixed nut and the fixed push plate to move, so that the fixed push plate drives the fixed clamping plate to move to be matched with the mounting clamping groove to be clamped on the mounting frame; and through connection and pushing of the fixing screws and the fixing nuts, it is guaranteed that the fixing clamping plates are more stable during clamping installation.

An optical switch and system including the same are provided. The optical switch includes (i) a fastening portion configured to releasably attach directly or indirectly to a fuse casing, (ii) a cable connecting portion including a first fiber optic cable connection port, a second fiber optic cable connection port, and an optical through-channel extending from the first fiber optic cable connection port and the second fiber optic connection port; and (iii) an actuator configured to move between a first position associated with a non-blown fuse and a second position associated with a blown fuse. The actuator includes an optical blocking portion that is moved into or within the optical through-channel of the cable connecting portion when the actuator is in the second position.

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.

The utility model discloses a circuit breaker with a metal particle adsorption function. The circuit breaker mainly solves the problem that gas containing metal particles of a conventional circuit breaker is directly exhausted from an exhaust hole, and certain potential safety hazards exist. One end of the arc striking sheet is arranged on the front side of the arc extinguish chamber, the middle section of the arc striking sheet extends to pass through the outer side of the bottom of the arc extinguish chamber, the tail end of the arc striking sheet extends into the air outlet channel and is provided with a through groove (31), and the through groove is communicated with the air outlet hole and the exhaust hole. According to the circuit breaker with the metal particle adsorption function provided by the utility model, metal particles are discharged after being shielded and adsorbed by the arc striking sheet, so that the circuit breaker is safer to use.

A system includes any number of solid-state circuit breakers that couple between a power supply and an electrical load. The system also includes a housing and the solid-state circuit breakers are disposed within the housing. The housing includes a door sensor that generates a first signal indicative of a position of a door of the housing. The housing also includes an indicator that generates a second signal indicative of a position of a handle of the housing. The system also includes a secondary device communicatively coupled to the solid-state circuit breakers, the door sensor, and the indicator. The secondary device receives the first signal and the second signal and generates an instruction to adjust an operating state of the solid-state circuit breakers based on the first signal and the second signal.

The utility model discloses a kind of moulded case circuit breaker conducting systems, including base, multiple contact cavities are formed by multiple arrangement settings baffle in the base, multiple rotating cavities are opened in the base middle part in contact cavity opposite position, movable contact assembly is rotatably connected in the rotating cavity, static contact assembly that is installed in contact cavity is cooperated with movable contact assembly and realizes on-off, connection position is opened in the base surface front end, the static contact assembly includes static contact, first arc-extinguishing chamber and fixed baffle, one end of the static contact is set in contact cavity, the other end of the static contact extends to connection position, first arc-extinguishing chamber is installed below static contact, fixed baffle is arranged in first arc-extinguishing chamber opposite position on the surface of static contact upper side, and the bottom of fixed baffle is contacted with the outer wall of first arc-extinguishing chamber. By setting two arc-extinguishing chamber arrangement and positioning, the breaking capacity, safety reliability and service life of moulded case circuit breaker are significantly improved.

The utility model relates to the technical field of residual-current circuit breakers, in particular to a residual-current circuit breaker, which comprises a circuit breaker body, a connecting assembly is arranged on the back of the circuit breaker body, the connecting assembly comprises a mounting seat, mounting plates are vertically and symmetrically arranged on the left side surface and the right side surface of the mounting seat, and a fixing groove is formed in the front of the mounting seat. According to the electric leakage circuit breaker, the connecting assembly is arranged on the electric leakage circuit breaker, a pulling button is pulled outwards, the pulling button drives a pulling rod to move, a first rotating rod and a second rotating rod can be driven to rotate through a connecting block, and the first rotating rod and the second rotating rod respectively drive a first clamping rod and a second clamping rod to move when rotating; when the first clamping rod and the second clamping rod respectively move to the outer side of the clamping groove, the circuit breaker body can be disassembled by moving the circuit breaker body forwards, so that when the circuit breaker body is damaged, the circuit breaker body is convenient to maintain, and the whole device is simple in structure, convenient to operate and higher in practicability.

The invention relates to an arc extinguishing structure for a circuit breaker and the circuit breaker. The arc extinguishing structure for the circuit breaker comprises an arc extinguishing chamber (10) and a shell (20). The arc extinguish chamber (10) comprises a plurality of arc extinguish pieces (11) which are separated from one another, and is provided with a front end close to the arc generation area and a rear end far away from the arc generation area. The shell (20) is provided with an inner cavity for containing the arc chamber (10). Wherein the inner cavity comprises a backflow area (21) and an open area (22), the backflow area (21) is closer to a static contact of the circuit breaker than the open area (22), the backflow area (21) is not communicated with the outside of the inner cavity of the shell (20), and the open area (22) is communicated to the outside of the inner cavity of the shell (20) through an exhaust channel.

A fusible link element (10; 15; 25; 35) comprising a metal composite material in which a first fusible metal (11; 21; 31) and a second fusible metal (12; 22; 32) are layered on top of each other, wherein the second fusible metal (12; 22; 32) has a lower melting temperature than the first fusible metal (11; 21; 31), characterized by the fact that the first fusible metal (11; 21; 31) is a Sn-Ag alloy and the Sn-Ag alloy contains at least 20 wt% and at most 30 wt% Ag, and the second fusible metal (12; 22; 32) is a Sn-Bi alloy and the Sn-Bi alloy contains at least 40 wt% and at most 70 wt% Bi, wherein at a common working temperature at least part of a component of the second fusible metal (12; 22; 32) is melted and part of a component of the first fusible metal (11; 21; 31) is melted, and where, at the common working temperature, the difference between a liquidus temperature and a solidus temperature of the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32) is reduced by a shift in the equilibrium of Sn between the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32) and by a mutual diffusion of Ag and Bi between the first fusible metal (11; 21; 31) and the second fusible metal (12; 22; 32).

The utility model discloses an electric leakage test circuit, an electric leakage protection circuit and an electric leakage circuit breaker, which can safely and effectively simulate electric leakage conditions through the electric leakage test circuit, accurately sense electric leakage signals through a residual current transformer, prevent current backflow through a diode D15 and guarantee test accuracy. Meanwhile, the electric leakage signal processing circuit, the anti-surge circuit, the rectifying circuit and other modules are integrated to form an electric leakage protection system with complete functions, and stable operation of the circuit is ensured. The system not only improves the electric leakage detection precision and safety, but also optimizes the circuit structure and functions, provides powerful guarantee for safe and stable operation of an electric power system, and has remarkable beneficial effects.

The utility model provides an arc extinguish chamber and a circuit breaker, and belongs to the technical field of electrical equipment. The arc extinguish chamber provided by the utility model comprises a base, an arc extinguish grid plate and an arc extinguish cover. The base is provided with an arc extinguishing cavity, and a slot is arranged in the arc extinguishing cavity. And the arc extinguishing grid plates are positioned in the arc extinguishing cavity and are inserted into the slots. The arc extinguishing chamber is covered with the arc extinguishing chamber, and the arc extinguishing chamber is detachably connected with the base. According to the circuit breaker, the slots are formed in the arc extinguishing cavity, and when the arc extinguishing grid sheets are mounted in the arc extinguishing chamber, the arc extinguishing grid sheets can be inserted into the slots, so that the arc extinguishing grid sheets and the base are detachably connected, the difficulty of dismounting and replacing parts in the arc extinguishing chamber can be reduced, and the operation and maintenance cost of the circuit breaker is reduced. When the arc extinguishing chamber is detachably connected with the base, parts in the arc extinguishing chamber can be detached and replaced by taking down the arc extinguishing chamber from the base, so that the difficulty of detaching and replacing the parts in the arc extinguishing chamber can be further reduced.

The utility model belongs to the technical field of circuit breakers, and particularly relates to a molded case circuit breaker based on the Internet of Things. The circuit breaker comprises a circuit breaker body and further comprises a sealing mechanism, an end protection piece and a fixing piece, U-shaped installation notches are formed in wiring positions of the two ends of the circuit breaker body, limiting sliding grooves are formed in the two opposite sides of the installation notches, and the two sides of the sealing mechanism are limited in the limiting sliding grooves in a sliding mode; the sealing mechanism is detachably connected with the circuit breaker main body through a fixing piece, and a wire is arranged in the end protection piece in a penetrating mode. According to the circuit breaker device, the wiring end of the wire is protected in a hidden mode through the end protection piece, aging and corrosion caused by wind and sunlight are avoided, dustproof protection is conducted on the wiring position of the circuit breaker through cooperation of the end protection piece and the sealing mechanism, and therefore the stability and reliability of the circuit breaker device are effectively improved, and the service life of the circuit breaker device is prolonged.

The utility model relates to the technical field of cable switches, in particular to a cable short-circuit protection switch, which comprises a switch shell and a partition plate fixedly connected inside the switch shell, the partition plate divides the inside of the switch shell into a lower high-pressure bin and an upper normal-pressure bin, the high-pressure bin is filled with inert gas, and the normal-pressure bin is filled with inert gas. The internal air pressure of the high-pressure bin is higher than the external atmospheric pressure; the moving contact and the static contact are both installed in the high-voltage bin, the high-voltage bin is filled with inert gas, the inert gas is used for insulation, an electric arc area can be rapidly cooled, the electric arc temperature can be reduced, and therefore the electric arc can be rapidly extinguished, and the electric arc can be rapidly extinguished when the electric arc is generated when a switch is switched off due to short circuit of a cable and instant large current. And the cable and the switch are well protected. In addition, the air pressure in the high-voltage bin is slightly higher than the external atmospheric pressure, so that external air cannot enter the high-voltage bin, and the arc extinguishing function of the high-voltage bin is not affected even if some micro gas leaks.

The invention belongs to the technical field of circuit breakers, and particularly relates to a household miniature circuit breaker convenient to disassemble and assemble. The circuit breaker comprises a track plate and a circuit breaker body installed on the track plate. The circuit breaker body comprises a base and a shell installed on the base, a groove matched with the track plate is formed in one face of the base, a containing groove is formed in the inner wall of the groove, and a sliding block is slidably connected into the containing groove; a clamping block is fixedly connected to the sliding block, a clamping groove clamped with the clamping block is formed in the track plate, and an elastic piece is fixedly connected between the sliding block and the inner wall of the containing groove; a fixing rod is fixedly connected to the sliding block, a rotating frame is rotationally connected into the groove, and a first connecting rod is hinged between one end of the rotating frame and the fixing rod. The circuit breaker body is provided with the rotating arm, the clamping block, the elastic piece and the rotating frame structure, the circuit breaker can be rapidly disassembled, the installation position of the circuit breaker on the track plate is convenient to adjust, and maintenance is convenient.