78results about "Protective switch details" patented technology

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.

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.

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 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 invention relates to a switch (1) for switching a high-voltage connection, comprising at least one fixed contact (2) and at least one movable contact (3) in a housing having a housing base (10) and a housing cover (11), wherein the movable contact (3) is secured to a support unit and is guided in a part of the housing, and the fixed contact (2), the housing base (10), the housing cover (11), and the support unit form a switching chamber (12) which is under atmospheric pressure in the open state of the switch (1) and is sealed against atmospheric pressure in the closed state of the switch (1).

This utility model discloses an insulation protection device for a generator outlet circuit breaker, comprising a grounding flat steel embedded outside the insulation distance around the generator outlet circuit breaker. Several vertical ribs are vertically arranged on the top of the grounding flat steel, and several horizontal ribs are horizontally connected to the vertical ribs. The vertical and horizontal ribs are hollow metal tubes with an insulating layer on their outer surface. The vertical ribs, together with the grounding flat steel and the horizontal ribs, form an insulating fence. A dustproof baffle is installed on the top of the insulating fence, and several temperature sensors are installed on the insulating fence. This technical solution utilizes the strength of stainless steel to achieve the structural strength of the insulating protective net; it uses an epoxy resin coating and a bolt structure with an insulating sheath to avoid structural component heating caused by induced current on the busbar; and it utilizes the reliable connection between the vertical ribs and the grounding grid to achieve zero potential of the external protective structure, ensuring personnel safety and reliability.

The invention relates to a solid state circuit breaker comprising an electronic switch, a mechanical switch configured to complete a closing process and an opening process by manual operation, a sensor configured to generate a trigger signal depending on a position of the mechanical switch during the closing process or the opening process, a control unit configured to activate an assistance mechanism depending on the trigger signal, and the assistance mechanism configured for providing assistance for the closing process or the opening process, wherein the electronic switch is connected in series with the mechanical switch.

To provide a handle lock device of a circuit breaker, capable of enhancing a work safety.SOLUTION: By inserting slide pins 26a and 26b into a first length hole 20 of a chain plate 18 and a second length hole 25 of a lock plate 12, and coupling them to a slide part 21, a handle catch 11 and the lock plate are slidably arranged in a movement direction of a cropping part against the chain plate. At an OFF position of the cropping part, a second chain hole of the slide part and a first chain hole of the chain plate are communicated, and at an ON position of the cropping part, the second chain hole is blocked by the chain plate. Then, the lock plate is moved to a cropping direction while blocking the first long hole of the chain plate.SELECTED DRAWING: Figure 4

This application relates to a three-phase independent permanent magnet switchgear. The three-phase independent permanent magnet switchgear includes: a cabinet with three mounting interfaces arranged side-by-side on its inner surface; three permanent magnet circuit breakers, corresponding to the three phases of the three-phase circuit, which are mounted side-by-side in the cabinet through the mounting interfaces; each permanent magnet circuit breaker includes: a low-voltage housing with a continuous curvature on its outer circumferential surface; a high-voltage housing, one end of which is fitted onto the outer circumferential surface of the low-voltage housing, with a continuous curvature on its inner circumferential surface; a permanent magnet operating module, which includes at least a moving iron core, and is disposed inside the low-voltage housing; and a power circuit module, which includes at least an arc-extinguishing chamber, and is disposed inside the high-voltage housing. This application can solve the problems of phase deviation, fault location, and single-phase fault linkage in three-phase integrated structures, and reduce the impact of airflow disturbance and electric field distribution on equipment operation.

The utility model relates to circuit breaker technical field especially relates to a photovoltaic distribution circuit breaker, include: the inside installation of one shell has circuit breaker, the one side of two shell is installed in one shell, and one side of two shell rotatable connection has the lid, two shell and one shell are connected through the installation component, the installation component includes: the one side fixed connection of frame body in one shell, through the linkage mechanism of slider, slot and spring, when pushing the shell, slider is extruded and slides up after the plate body, and under the automatic card of spring of pushing, it is inserted into the slot without tools and can complete the fixed, has realized to two shell's one button type clamping installation and dismounting, simultaneously, when covering the lid, through the screw is screwed into the column, not only can the lid be fixed, but also can keep the plug always inserted in two no.

This invention discloses a molded case circuit breaker, comprising: a base body; a reinforcing member including a horizontal portion and a vertical portion, the horizontal portion being connected to the vertical portion, the horizontal portion being embedded in the bottom surface of the base body, and the vertical portion being embedded in the corresponding long side surface of the base body; the strength of the reinforcing member being greater than the strength of the base body; the reinforcing member and the base body being integrally injection molded to form the base; and an arc-extinguishing chamber being partially or entirely embedded and fixed within the base. The reinforcing member increases the strength of the base, thereby improving the overall strength of the base and ensuring that even with a rapid increase in internal gas pressure after the rated voltage is increased, the base will not crack or be damaged. This structural design of the reinforcing member increases the connection area between the reinforcing member and the base body, improving the overall strength of the base. Furthermore, this structural design creates a tensile force; when the base is subjected to the impact force generated by an explosion, the connection between the horizontal and vertical portions increases the strength of the connection, ensuring that the base will not break.

This utility model relates to a circuit breaker switch shielding cover, comprising two symmetrically arranged shielding support covers with a distance between them, forming a cavity for installing the circuit breaker switch transmission assembly. Each shielding support cover includes a cover body, a spindle hole, bolt fastening holes, a fixed support, and a star-shaped reinforcing rib assembly. The spindle hole is located on the upper part of the cover body for installing the circuit breaker switch spindle. The bolt fastening holes are located in the middle of the cover body for installing the transmission cam of the circuit breaker switch transmission assembly. The fixed support is located at the bottom of the cover body for fixed connection to the circuit breaker to form an integral support. The star-shaped reinforcing rib assembly is located on the inner wall of the cover body and connects to the spindle hole, bolt fastening holes, and fixed support. The shielding cover of this utility model can effectively uniformize the electric field, meet the insulation level of 24kV clean air, and simultaneously provide support for the spindle and cam. Assembly is simple and easy to operate.

The utility model discloses an exhaust structure of an alternating current circuit breaker, which relates to the field of circuit breakers and comprises a shell and an arc extinguish chamber, the shell comprises a middle cover, a left cover and a right cover, the left cover and the right cover are mounted on two sides of the middle cover, and the middle cover is provided with a plurality of first gas guide plates for guiding gas from the arc extinguish chamber to the left side and the right side. The middle cover and the left cover are matched to form a first exhaust channel, the middle cover and the right cover are matched to form a second exhaust channel, a third exhaust channel and a fourth exhaust channel, and a first outlet communicated with the first channel and a second outlet communicated with the second exhaust channel and the fourth exhaust channel are formed in the bottom of the side wall of the shell. And a third outlet communicated with the third channel is formed in the upper surface of the shell. The utility model has the advantages of space saving and good safety.

A switching device includes a switch housing and an electromagnetic system arranged in the switch housing. The electromagnetic system includes an electromagnetic coil, a static iron core and a moving iron core. The switch housing includes an electromagnetic mounting cavity and at least one contact module mounting cavity which are arranged side by side. The electromagnetic system is arranged in the electromagnetic mounting cavity. A contact module is arranged in the contact module mounting cavity. The contact module includes a contact module housing, and a static contact, a moving contact and an arc-extinguishing chamber arranged in the contact module housing. The moving iron core is connected to the moving contact through a linkage member to drive the moving contact to move in a straight line. The contact module housing is provided with a first linkage hole. A linkage member passes through the first linkage hole to connect the moving iron core with the moving contact. The contact mechanism is encapsulated as a contact module, and then mounted in the switch housing as a whole, such that the overall height of the switch is reduced, the influence of an arc generated by the contact module on the electromagnetic system is reduced, and a higher rated current can be used.

This utility model relates to the technical field of circuit breaker installation structures, specifically to a dedicated circuit breaker latching structure for mounting on a guide rail. Key technical features include contact surfaces between the latch, guide rail, and circuit breaker. These include latching grooves on the left and right sides above the contact surface between the circuit breaker housing and the guide rail, providing sliding space for the latch. The distance between the underside of the front face of the left and right latching grooves and the underside of the guide rail's locking surface along one side of the guide rail, which is secured to the circuit breaker housing, is a pre-reserved dimension according to the guide rail specifications. The front ends of the left and right latching grooves have a protruding, chamfered, trapezoidal upper surface, and the rear ends of the left and right latching grooves have an upper surface. Above the middle of the left and right latching grooves, two latching feet of the plastic spring slide past, successively contacting the front, middle, and rear faces to form triangular protrusions at different angles. This utility model, when mounted on a guide rail, provides a clamping and stabilizing function; it also provides an arc-blocking function during circuit breaker arc suppression; and it provides a stopping and limiting function during installation and disassembly.

This application discloses a circuit breaker and a power distribution system, comprising a housing and a main line switching component and a circuit board assembly disposed within the housing; the circuit board assembly includes a cover opening detection circuit and a controller, the cover opening detection circuit being connected to a pin of the controller; the cover opening detection circuit has a mechanical switch; a portion of the mechanical switch extends through the housing for triggering by an external cover; the mechanical switch includes a first state and a second state, the first state being triggered by the cover and the second state being not triggered by the cover; when the mechanical switch is in the second state or transitions from the first state to the second state, the controller generates a cover opening signal; this application features cover opening detection.

The application discloses a false tripping prevention device for a power supply air switch of a power grid secondary device, which is arranged on the shell of a designated power supply air switch and is spaced apart from the shell of the power supply air switch to meet the normal opening and closing movement of an external manual operating handle arranged on the power supply air switch and prevent false touch. The application can replace adhesive tape to prevent false tripping of the power supply air switch and can be repeatedly used. In the case of ensuring normal use of the power supply air switch, the application can prevent false tripping of the power supply air switch due to false touch or other reasons, and can also realize online monitoring of the tripping state of the power supply air switch to save time, labor and cost.

Provided are a power disconnect device (400), a power conversion apparatus (1) and an electric vehicle (6), relating to the field of switching devices. The power disconnect device (400) comprises a first housing (10), a second housing (20), a current carrying busbar (30), an igniter (40), and a moving member (50). In a first direction, the current carrying busbar (30) is arranged between the first housing (10) and the second housing (20). The first housing (10) is provided with an accommodating recess (11), a mounting recess (12), and at least one air passage (13) making the accommodating recess (11) in communication with the mounting recess (12), and the moving member (50) is slidably connected in the accommodating recess (11) in the first direction. In a second direction, the mounting recess (12) is spaced apart from the accommodating recess (11) and used for accommodating the igniter (40). Each air passage (13) comprises an inlet (13a) located on a recess wall of the mounting recess (12) and an outlet (13b) located on a recess wall of the accommodating recess (11). In the first direction, the distance between the inlet (13a) and the current carrying busbar (30) is less than the distance between the surface (501) of the moving member (50) facing away from the second housing (20) and the current carrying busbar (30), and the outlet (13b) is at least partially located on the side of the moving member (50) facing away from the current carrying busbar (30). The igniter (40) is used for driving the moving member (50) to break the current carrying busbar (30). By adjusting the position of the inlet (13a), the igniter (40) and the moving member (50) can overlap in the second direction, thereby facilitating miniaturization design.

The utility model relates to the field of low voltage electrical apparatus, concretely relates to a casing structure of switch device, it includes the shell, the shell includes the first space for containing the magnetism component of electromagnetic system for accommodating, the second space for containing the switch module that is driven to close and disconnect under electromagnetic system and the third space for containing the control system that is connected with electromagnetic system at least, first space and second space are along third direction d3 and set side by side, and second space and third space are along first direction d1 and set side by side, and first direction d1 and third direction d3 are perpendicular to each other, the casing structure of switch device, and the internal space division is reasonable compact, is favorable to reduce the overall specification size of switch device.

The application relates to the technical field of power distribution equipment, and discloses a circuit breaker with an external voltage sensor, which comprises a circuit breaker body, a support arranged on the circuit breaker body, and a voltage sensor arranged on the support; the support comprises two symmetrical stand columns, a connecting rod arranged between the two stand columns, and a support rod arranged on the same side of the two stand columns; one end of the support rod is slidably provided with a limiting baffle; the limiting baffle and one side of the stand column are provided with a hanging plate; and two hanging plates on the same side are hung in the mounting groove of the mounting base; one side of the stand column away from the support rod is provided with a support seat with adjustable height and length; the application can effectively improve the flexibility of support adjustment, thereby improving the convenience of construction; meanwhile, the positioning and installation of the circuit breaker are completed by connecting the mounting base and the support; when the circuit breaker is disassembled and repaired, the mounting base does not need to be removed, damage to the original mounting position is avoided, and the use in a limited space is met.

The utility model discloses a protective device for circuit breaker belongs to circuit breaker technical field. A protective device for circuit breaker, including circuit breaker main part, the outside wall of circuit breaker main part rear is seted up and has the clamping groove, the inside of circuit breaker main part is provided with electrical element main part, and the outside wall of circuit breaker main part rear is provided with protection assembly, and dry board can carry out effective adsorption to the humidity of entering, thereby greatly reduce the possibility of humidity to internal electrical element main part cause damage, secondly can be more convenient for personnel to clean the fin and be convenient for personnel's later dismounting maintenance, whole use is more convenient, and effectively promote its use practicality, and can install on the guide rail of various sizes, and the stability is higher after fixing.

This invention relates to the field of switching power supply circuit breaker protection technology, specifically a switching power supply circuit breaker protection device, including a circuit breaker. The circuit breaker is equipped with a quick cleaning mechanism, which includes two guide grooves and two fixed seats. Guide rods are slidably connected inside each guide groove. A mounting plate is fixedly connected between the guide rods. An air supply groove is fixedly connected inside the mounting plate. A delivery pipe is fixedly connected at the middle position of the side wall of the mounting plate. Symmetrically arranged support rods are fixedly connected to the side wall of the mounting plate. An inflatable airbag is fixedly connected to one end of each support rod. Symmetrically arranged positioning rods are fixedly connected to the side wall of the mounting plate. The beneficial effects of this invention are: the entire operation is convenient and efficient, improving the efficiency of circuit breaker cleaning, solving the problem of cleaning the back ventilation groove, and avoiding the problem of reduced ventilation efficiency caused by incomplete cleaning of the ventilation groove and back channel.

The utility model discloses a leakage protection device with high waterproof structure, include: upper cover, base and sealing element, upper cover is equipped with first fixed groove, and base is equipped with second fixed groove, and first fixed groove is linked together with second fixed groove, and one of upper cover and base is equipped with fixed cavity, and fixed cavity is equipped with fixed column and openwork area, and the other of upper cover and base is equipped with the fixed hole that cooperates with fixed column, sealing element part is embedded to first fixed groove, second fixed groove, and the rest part of sealing element is equipped with first locating column and first through -hole, and first locating column inserts to openwork area, and fixed column passes first through -hole, first, through the cooperation of sealing element and first fixed groove, second fixed groove, forms the sealing effect, second, through the junction of closed fixed column, fixed hole, forms the effect of double -sealed, thereby improves the sealed grade, makes leakage protection device adapt to the sudden bubble water or short -time bubble water condition under the special scene.

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 utility model provides a circuit breaker for photovoltaic power station relates to circuit breaker field, including circuit breaker body, the circuit breaker body includes the casing, be provided with manual switching on and off and connecting part on the casing, and manual switching on and off is through manual operation, directly control conduction and disconnect, realize the start -stop of circuit and the manual cut -off when trouble, and connecting part is used for with external circuit, the electrical connection of other equipment. The circuit breaker for photovoltaic power station when taking off the casing, press the slide bar, then pull cylinder A and cylinder B, the slide bar will drive the blocking post to move, and then make the ball no longer be limited by the blocking post, when pulling cylinder A and cylinder B, the ball will retract into the installation cavity under extrusion, at this moment can smoothly take off cylinder A and cylinder B, need not tool to carry out dismounting, and dismounting is more convenient.

A bidirectional circuit breaker has Breaking Speed Control to prevent false triggering when an upstream fault occurs. A semiconductor switch has a Metal Oxide Semiconductor Field Effect Transistor (22), an Insulated Gate Bipolar Transistor (24), and a varistor (30) in three parallel branches that drive a positive output. An input capacitor (36) between positive and negative inputs forms an LC network with an inductor (42) connected to the positive input. A current sensor (40) is connected between the inductor (42) and the semiconductor switch. When the current sensor (40) detects reverse current, a snubber switch (32) is closed, connecting a snubber capacitor (34) across both terminals of the inductor (42). A LCC network is formed that stores more energy than the LC network, spreading out a current spike caused by the upstream fault, reducing peak reverse current pulled through the circuit breaker by the upstream fault. Thus breaking speed is reduced when the snubber switch (32) closes.

This application relates to the technical field of circuit breakers and discloses a protective structure and its circuit breaker cover, which includes a mounting strip for mounting on a housing. A protective cover for covering a button on the housing is rotatably connected to the mounting strip. The protective cover has a receiving groove into which the mounting strip can rotate. A locking component connecting the mounting strip and the protective cover is provided. This application has the effect of preventing the button on the circuit breaker cover from being accidentally touched.

The utility model relates to ancient building electrical protection technical field especially is an ancient building electrical fire electric arc detection circuit breaker, including detection casing, the side recess is set up in the side surface middle position of detection casing, the side surface rear position sliding connection of detection casing has the slide, the front end upper position fixed connection of slide has the scale board, the side of slide away from detection casing is fixedly connected with side card frame, in the utility model, through setting carbon fibre modified bulkhead, bolt, slide, adjusting card slot, side slot and scale board, will be convenient ancient building electrical fire electric arc detection circuit breaker before using, need to carry out the assembly to multiple detection equipment, the equipment can take scale separation component first, to realize the relative installation with accurate suitable installation spacing, then utilize the carbon fibre modified bulkhead of additional installation to side card frame, insulate the electromagnetic interference that both sides generate when operating, avoid both inconvenient normal detection work to ancient building electrical circuit.

The utility model relates to circuit breaker assembly technical field, concretely is a kind of circuit breaker of convenient combination assembly;The utility model generates magnetism by controller control electrically controlled magnet energization, only need to fix the outer wall of the fixed base with circuit breaker one, and then make electrically controlled magnet produce magnetic adsorption to iron block, also need not hold circuit breaker one, electrically controlled magnet carries out magnetic adsorption to circuit breaker one, subsequently, limit rod is stirred, to make the rotation of the limit rod in fixed pivot, and then make the outer wall of limit rod be fixed in circuit breaker one, it is convenient to install;Through the magnetic adsorption of electrically controlled magnet to iron block and fixed, subsequently, only need to pull slide plate and drive fixed bolt to move to one side, make fixed bolt disconnect fixed to card slot and limit slot, while pulling down limit rod, circuit breaker one can be applied to tension, circuit breaker one drives iron block and electrically controlled magnet to lose fixed, can select one or more circuit breaker one and pull down, it is more convenient to assemble.

The utility model discloses a primary and secondary fusion pole-mounted circuit breaker with dustproof sealing structure, including bearing assembly, and bearing assembly includes the box, and the inner wall edge of box is fixedly connected with the fixed ring, and the lower extreme of fixed ring is installed with the protection board, and the protection board and fixed ring are clamped with the sealing washer, and the upper end of box is installed with three protection components no.