CN221407201U - Bracket for circuit breaker and circuit breaker - Google Patents

Abstract

The application discloses a bracket for a circuit breaker and the circuit breaker, and relates to the technical field of low-voltage electrical appliances. The bracket main body is mounted on the base. The first installation cavity is arranged on the support main body, and a first protective cover is arranged in the first installation cavity. The second installation cavity is arranged on the support body and is adjacent to the first installation cavity, the second installation cavity is separated from the first installation cavity through a first partition board, and a first clamping groove is formed in the first partition board. The third installation cavity is arranged on the support body and is located at one side, deviating from the first installation cavity, of the second installation cavity, a second protection cover is arranged in the third installation cavity, the third installation cavity and the second installation cavity are separated through a second partition board, and a second clamping groove is formed in the second partition board. The application can integrate a plurality of functional components and assemble the functional components to the base of the circuit breaker, thereby improving the assembly efficiency.

Description

Bracket for circuit breaker and circuit breaker

Technical Field

The application relates to the technical field of piezoelectric devices, in particular to a bracket for a circuit breaker and the circuit breaker.

Background

The circuit breaker has relatively many components, taking a molded case circuit breaker as an example, functional components such as a thermomagnetic tripping system, a mutual inductor, a circuit board, a dielectric switch and the like are usually installed in the circuit breaker, and the functional components are mutually matched to form the circuit breaker with stronger protection capability.

In most of the current circuit breakers, the functional components are usually installed in the base of the circuit breaker in a separate assembly mode, but the assembly mode has some disadvantages, for example, the base of the circuit breaker lacks a positioning structure for a thermomagnetic tripping system, the installation position needs to be manually adjusted when the thermomagnetic tripping system is assembled, and the working efficiency is low. Meanwhile, the limiting structure of the current transformer in the base is low in stability, and misoperation of the circuit breaker is easy to occur at the moment of starting the motor, so that normal use is affected. In addition, other functional parts need to be additionally provided with structures such as a protective cover or a protective cover for protection, the number of parts is large, the operation is complex, and the assembly efficiency is low.

There is therefore a need for a mounting structure capable of integrating a plurality of functional components to improve the assembly efficiency of the plurality of functional components to the circuit breaker base.

Disclosure of utility model

The application aims to provide a bracket for a circuit breaker and the circuit breaker, which can integrate and install a plurality of functional components together and assemble the functional components to a base of the circuit breaker, simplify assembly operation and improve assembly efficiency.

In a first aspect, an embodiment of the present application provides a bracket for a circuit breaker, where a thermo-magnetic release, a transformer, a circuit board, and a dielectric switch are disposed on the bracket, and the bracket includes a bracket main body, a first mounting cavity, a second mounting cavity, and a third mounting cavity. The bracket main body is mounted on the base. The first installation cavity is arranged on the support main body, and a first protective cover is arranged in the first installation cavity. The second installation cavity is arranged on the support main body and is adjacent to the first installation cavity, the second installation cavity is separated from the first installation cavity through a first partition board, and a first clamping groove is formed in the first partition board. The third installation cavity is arranged on the support main body and is located on one side, deviating from the first installation cavity, of the second installation cavity, a second protection cover is arranged in the third installation cavity, the third installation cavity is separated from the second installation cavity through a second partition board, and a second clamping groove is formed in the second partition board. The first protective cover is used for installing the dielectric switch, the second protective cover is used for installing the circuit board, the first clamping groove and the second clamping groove are used for clamping the mutual inductor, and at least one of the first installation cavity, the second installation cavity and the third installation cavity is used for installing the thermomagnetic release.

Based on the embodiment of the application, the support is convenient for functional components such as the thermomagnetic release, the mutual inductor, the circuit board and the dielectric switch to be assembled into the base after the circuit breaker is installed outside the base, so that the problem that independent installation operation and positioning operation are inconvenient to carry out due to the narrow space in the base is solved, and the assembly efficiency of the circuit breaker is improved. Simultaneously, first installation cavity, second installation cavity and third installation cavity in the support main part to and set up first protection casing, second protection casing, first baffle and the second baffle in the support main part can play the effect of fixing and protecting above-mentioned different functional parts respectively, improve the stability and the security of a plurality of functional parts in the circuit breaker use, can also save the space that sets up fixed subassembly and protection subassembly occupation in the base, improve the utilization ratio of base inner space.

In some examples, a first clamping portion is provided on the first shield, the first clamping portion being capable of clamping with a second clamping portion on the dielectric switch.

According to the embodiment of the application, the first clamping part is used for clamping the functional component installed in the first protective cover, preventing the functional component from being separated from the first protective cover, and further improving the positioning function and the protection function of the first protective cover and the assembly stability between the functional component and the first protective cover.

In some examples, opposite guiding positioning grooves are formed in the side wall of the second protective cover, the width of each guiding positioning groove is matched with the thickness of the circuit board, and the guiding positioning grooves are connected with the circuit board in a sliding mode.

According to the embodiment of the application, the guide positioning groove is arranged on the side edge of the corresponding circuit board, the width of the guide positioning groove is matched with the thickness of the circuit board, so that the circuit board can be conveniently inserted into the second protective cover along the guide positioning groove, the circuit board can be positioned by utilizing the transition fit relation or the interference fit relation between the guide positioning groove and the side edge of the circuit board, the circuit board is prevented from shaking or separating from the second protective cover, and the fit form is beneficial to improving the positioning function and the protection function of the second protective cover and the assembly stability between the circuit board and the second protective cover.

In some examples, a bottom of the first mounting cavity is provided with a first routing hole, the first routing hole being in communication with the first protective cover. The bottom of the third installation cavity is provided with a second wiring hole, and the second wiring hole is communicated with the second protective cover.

Based on the embodiment of the application, the arrangement of the first wiring hole is convenient for the dielectric switch arranged in the first protective cover to be electrically connected with the conductor on the base, the arrangement of the second wiring hole is convenient for the circuit board arranged in the second protective cover to be electrically connected with the dielectric switch, and the mode that the first wiring hole and the second wiring hole are arranged at the bottom of the bracket main body is adopted, so that the dielectric switch and the circuit board can take electricity, the space occupied by laying wires is reduced, and the space utilization rate on the bracket main body and the base is improved.

In some examples, a first mounting groove is provided on a side wall of the first mounting cavity, a second mounting groove is provided on a side wall of the second mounting cavity, a third mounting groove is provided on a side wall of the third mounting cavity, and the first mounting groove, the second mounting groove, and the third mounting groove are located on the same side of the bracket body. The thermal magnetic release is provided with three, including first thermal magnetic release, second thermal magnetic release and third thermal magnetic release, first thermal magnetic release is installed in the first mounting groove, the second thermal magnetic release is installed in the second mounting groove, the third thermal magnetic release is installed in the third mounting groove, first baffle part sets up first thermal magnetic release with between the second thermal magnetic release, the second baffle sets up second thermal magnetic release with between the third thermal magnetic release.

Based on the embodiment of the application, the first mounting groove, the second mounting groove and the third mounting groove are arranged on the same side of the bracket main body side by side and are used for correspondingly mounting the same number of thermomagnetic trippers, the arrangement form of the bracket main body can play the roles of isolation and insulation protection, the mutual influence among a plurality of thermomagnetic trippers is avoided, the possibility of misoperation of the thermomagnetic trippers can be reduced, and therefore the working stability of the circuit breaker is improved.

In some examples, a groove wall of the first mounting groove is provided with a first fixing groove, and the first thermo-magnetic release is clamped in the first fixing groove. The cell wall of second mounting groove is provided with the second fixed slot, second thermomagnetic release joint in the second fixed slot. The cell wall of third mounting groove is provided with the third fixed slot, third thermomagnetic release joint in the third fixed slot.

According to the embodiment of the application, the fixing effect of the first mounting groove on the first thermomagnetic release, the fixing effect of the second mounting groove on the second thermomagnetic release and the fixing effect of the third mounting groove on the third thermomagnetic release can be improved by adopting the arrangement mode, the situation that the thermomagnetic release is unstable to mount on the bracket main body is effectively avoided, the first fixing groove is formed on the groove wall of the first mounting groove, the additional space in the bracket main body is not occupied, the first thermomagnetic release can be directly clamped in the first fixing groove on the groove wall when being mounted on the first mounting groove, and the second fixing groove and the third fixing groove have the same effect as the first fixing groove, so that the thermomagnetic release mounting bracket has the characteristics of simple structure and convenience in operation.

In some examples, a first avoidance portion is provided on the first separator, the first avoidance portion being configured to avoid the first conductive plate. The second baffle is provided with a second avoiding part, and the second avoiding part is used for avoiding the third conductive plate.

Based on the embodiment of the application, the first avoidance part is a part which is arranged on the first partition board and is communicated with the first installation cavity and the second installation cavity, the second avoidance part is a part which is arranged on the second partition board and is communicated with the second installation cavity and the third installation cavity, the first avoidance part is convenient for the first conducting plate in the first thermomagnetic release to extend into the second installation cavity from the first installation cavity, the second avoidance part is convenient for the third conducting plate in the third thermomagnetic release to extend into the second installation cavity from the third installation cavity, and the arrangement of the first avoidance part and the second avoidance part is beneficial to improving the compactness of the internal structure of the bracket main body and improving the utilization rate of the internal space of the bracket main body on the premise of not influencing the structural stability of the bracket main body.

In some examples, an avoidance gap is further formed in the support body, the avoidance gap is located on one side, away from the first mounting groove, of the support body, and the avoidance gap extends from the position of the first mounting cavity to the position of the third mounting cavity.

Based on the embodiment of the application, the arrangement of the avoidance notch can be used for avoiding the first conductive plate, the second conductive plate and the third conductive plate, so that the first conductive plate, the second conductive plate and the third conductive plate can extend out of the bracket main body conveniently. The position of seting up of dodging the breach is located the support main part and is on the back of the body one side with first mounting groove, first mounting groove is used for installing first thermomagnetic release, when the support main part was worn out from the opposite side of support main part to first conducting plate in the first thermomagnetic release, need not to bend again in order to cross the lateral wall of support main part, be convenient for first conducting plate is connected with the wiring end in the circuit breaker, second conducting plate and third conducting plate are the same, so dodge the breach and extend to the third mounting chamber so that second conducting plate and third conducting plate also can more convenient be connected to the circuit breaker wiring end from first installation cavity, structure and the installation operation of thermomagnetic release have been simplified, improve the assembly efficiency of thermomagnetic release in the circuit breaker.

In a second aspect, an embodiment of the present application further provides a circuit breaker, including a base, a cover plate, a thermo-magnetic release, a transformer, a circuit board, a dielectric switch, and the bracket for the circuit breaker. The base is provided with a containing cavity, the cover plate is connected with the base and seals the containing cavity, the thermomagnetic release, the mutual inductor, the circuit board and the dielectric switch are installed in the support main body, and the support main body is installed in the containing cavity.

According to the embodiment of the application, the circuit breaker with the bracket can simplify the operation of installing the functional components such as the thermomagnetic release, the mutual inductor, the circuit board, the dielectric switch and the like into the circuit breaker, improve the assembly efficiency of the circuit breaker, and simultaneously, the structure on the bracket main body can play a role in positioning and insulating protection on the functional components, and improve the installation stability and the use safety of the functional components.

In some examples, a guide mounting groove is formed in a side wall of the accommodating cavity, a guide mounting protrusion is formed in an outer side wall of the bracket body, and the bracket body is mounted in the accommodating cavity through cooperation of the guide mounting protrusion and the guide mounting groove.

Based on the embodiment of the application, the bracket main body is directly and slidably arranged in the accommodating cavity through the guiding action between the guiding installation groove and the guiding installation protrusion, the installation operation is simple and efficient, meanwhile, the installation of the bracket main body in the accommodating cavity is more stable through the limiting action of the guiding installation groove on the guiding installation protrusion, the shaking or offset is avoided, and the assembly accuracy is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a bracket main body according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a bracket main body according to an embodiment of the present application;

fig. 3 is a schematic structural view of a bracket main body according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a circuit board and a dielectric switch according to an embodiment of the present application mounted to a bracket body;

Fig. 5 is a schematic structural view of a transformer according to an embodiment of the present application mounted to a bracket body;

Fig. 6 is a schematic structural diagram of a thermo-magnetic release according to an embodiment of the present application mounted to a bracket main body;

Fig. 7 is a schematic diagram of an installation structure of a thermo-magnetic release and a first installation groove according to an embodiment of the present application;

fig. 8 is a schematic structural view of a plurality of functional components assembled on a bracket main body according to an embodiment of the present application;

FIG. 9 is an exploded view of a base provided by an embodiment of the present application;

FIG. 10 is a schematic view of a base for mounting a bracket body according to an embodiment of the present application;

Fig. 11 is a schematic diagram of a mating structure between a stand main body and a base according to an embodiment of the present application.

Reference numerals illustrate:

1-a base; 11-a receiving cavity; 111-guiding installation groove; 12-a third wiring hole; 13-fourth wiring holes; 2-a stent body; 21-a first mounting cavity; 211-a first protective cover; 2111—a first clip portion; 212-a first wiring hole; 213-a first mounting groove; 2131-a first fixing groove; 22-a second mounting cavity; 221-a second mounting groove; 2211-a second fixed slot; 23-a third mounting cavity; 231-a second shield; 2311-a guide positioning groove; 232-a second wiring hole; 233-a third mounting groove; 2331-a third fixing groove; 24-a first separator; 241-first catch groove; 242-a first evasion portion; 25-a second separator; 251-a second clamping groove; 252-a second evasion portion; 26-avoiding a gap; 27-guiding the mounting boss; 3-dielectric switches; 31-a second clamping part; 4-a circuit board; 5-a mutual inductor; 6-thermomagnetic release; 61-a first thermo-magnetic release; 62-a second thermo-magnetic release; 63-a third thermo-magnetic release; 611-a first conductive plate; 621-a second conductive plate; 631-a third conductive plate; 64-fixing part.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of this application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 6, the present embodiment provides a bracket for a circuit breaker, on which a thermo-magnetic release 6, a transformer 5, a circuit board 4 and a dielectric switch 3 are disposed, the bracket includes a bracket main body 2, a first mounting cavity 21, a second mounting cavity 22 and a third mounting cavity 23. The holder body 2 is mounted on the base 1. The first installation cavity 21 is arranged on the bracket main body 2, and a first protection cover 211 is arranged in the first installation cavity 21. The second installation cavity 22 is disposed on the bracket main body 2 and adjacent to the first installation cavity 21, the second installation cavity 22 is separated from the first installation cavity 21 by a first partition 24, and a first clamping groove 241 is disposed on the first partition 24. The third installation cavity 23 is arranged on the bracket main body 2 and is positioned on one side of the second installation cavity 22 away from the first installation cavity 21, a second protection cover 231 is arranged in the third installation cavity 23, the third installation cavity 23 and the second installation cavity 22 are separated by a second partition plate 25, and a second clamping groove 251 is formed in the second partition plate 25. The first protection cover 211 is used for installing the dielectric switch 3, the second protection cover 231 is used for installing the circuit board 4, the first clamping groove 241 and the second clamping groove 251 are used for clamping the mutual inductor 5, and at least one of the first installation cavity 21, the second installation cavity 22 and the third installation cavity 23 is used for installing the thermomagnetic release 6.

Based on the embodiment of the application, the arrangement of the bracket is convenient for the functional components such as the thermomagnetic release 6, the mutual inductor 5, the circuit board 4, the dielectric switch 3 and the like to be assembled into the base 1 after the circuit breaker base 1 is assembled, so that the problem that the independent installation operation and the positioning operation are inconvenient to carry out due to the narrow space in the base 1 is solved, and the assembly efficiency of the circuit breaker is improved. Simultaneously, first installation cavity 21, second installation cavity 22 and third installation cavity 23 on the support main part 2, and set up first protection casing 211, second protection casing 231, first baffle 24 and second baffle 25 on the support main part 2 can play fixed and the effect of protection to above-mentioned different functional parts respectively, improve the stability and the security of a plurality of functional parts in the circuit breaker use, can also save the space that sets up fixed subassembly and protection subassembly occupation in base 1, improve the utilization ratio of base 1 inner space.

The bracket main body 2 is divided into a first installation cavity 21, a second installation cavity 22 and a third installation cavity 23, which are used for respectively and correspondingly installing different functional components, or installing the same functional components to correspond to different positions of the base 1, for example, the arrangement of the thermomagnetic release 6 needs to correspond to a plurality of wiring terminals in the base 1, and the wiring terminals are arranged at intervals along the width direction of the base 1, so that a plurality of thermomagnetic releases 6 also need to be arranged at intervals, and at the moment, the plurality of thermomagnetic releases 6 are respectively installed into the first installation cavity 21, the second installation cavity 22 and the third installation cavity 23 and can correspond to the positions of the wiring terminals. Of course, the size of the support main body 2 can be adjusted according to the size of the base 1, correspondingly, the number of the installation cavities separated on the support main body 2 can be adjusted according to the number of the wiring terminals in the base 1, and the arrangement is beneficial to improving the adaptation degree of the support main body 2 and the base 1, so that the functional components mounted on the support main body 2 are beneficial to corresponding to the structure in the base 1, and the practicability is higher.

Referring to fig. 4, the cavity formed by the first protective cover 211 and the bottom wall of the bracket main body 2 is used for positioning and installing the dielectric switch 3 and playing a role in protecting the dielectric switch 3, the cavity formed by the second protective cover 231 and the bottom wall of the bracket main body 2 is used for positioning and installing the circuit board 4 and playing a role in protecting the circuit board 4, the structures of the first protective cover 211 and the second protective cover 231 are simpler, other protection and positioning structures are not required to be arranged for matching, and the assembly efficiency of the dielectric switch 3 and the circuit board 4 can be improved.

Referring to fig. 4 and 5, the first partition plate 24 and the second partition plate 25 are respectively located at two sides of the second installation cavity 22, and the first clamping groove 241 formed on the first partition plate 24 and the second clamping groove 251 formed on the second partition plate 25 cooperate to fix the transformer 5 installed on the bracket main body 2, so as to prevent the transformer 5 from shaking or shifting to cause the breaker to fail.

Referring to fig. 2 to 4, in some examples, a first clamping portion 2111 is provided on the first protection cover 211, and the first clamping portion 2111 can be clamped with the second clamping portion 31 on the dielectric switch 3.

According to the above embodiment of the present application, the first clamping portion 2111 is provided for clamping the functional component mounted in the first protection cover 211, preventing the functional component from being separated from the first protection cover 211, and further improving the positioning function and the protection function of the first protection cover 211, and the assembly stability with the functional component.

In this example, the first clamping portion 2111 in the first protection cover 211 is set as a clamping hole, the clamping hole is formed at a position of the first protection cover 211 close to the bottom wall of the bracket main body 2, the second clamping portion 31 installed on the dielectric switch 3 of the first protection cover 211 is set as a clamping protrusion, the positions of the clamping protrusions are in one-to-one correspondence with the positions of the clamping holes, and in the process of installing the dielectric switch 3 into the first protection cover 211, the clamping protrusion is clamped into the clamping hole, so that the dielectric switch 3 can be stably clamped in the first protection cover 211. The clamping protrusion and the clamping hole are simple in structure, small in occupied space and convenient to install and operate. In addition, the arrangement of the clamping bulges and the clamping holes can be exchanged, and the technical effects are achieved. The specific mating form of the first clamping portion 2111 and the second clamping portion 31 may also be a fastening connection, an adhesive bonding, or a welding, which may satisfy the relationship of stable assembly of the functional component and the first protection cover 211.

Referring to fig. 2 and 4, in some examples, opposite guide and positioning grooves 2311 are provided on the side wall of the second protection cover 231, the width of the guide and positioning grooves 2311 is adapted to the thickness of the circuit board 4, and the guide and positioning grooves 2311 are slidably connected with the circuit board 4.

According to the above embodiment of the present application, the guiding and positioning groove 2311 is configured to correspond to the side edge of the circuit board 4, the width of the guiding and positioning groove 2311 is matched with the thickness of the circuit board 4, so that the circuit board 4 can be conveniently inserted into the second protection cover 231 along the guiding and positioning groove 2311, and meanwhile, the transition fit relationship or interference fit relationship between the guiding and positioning groove 2311 and the side edge of the circuit board 4 can be utilized to position the circuit board 4, so as to avoid the circuit board 4 from shaking or separating from the second protection cover 231, and the above fit form is beneficial to improving the positioning function and the protection function of the second protection cover 231 and the assembly stability with the circuit board 4.

In this example, the height of the second protection cover 231 is matched with the length of the circuit board 4, the circuit board 4 can be completely wrapped in the second protection cover 231, the guiding positioning groove 2311 is formed along the height direction of the second protection cover 231, the guiding positioning grooves 2311 are provided with two opposite sides located in the second protection cover 231, two side edges of the circuit board 4 are correspondingly inserted into the two guiding positioning grooves 2311 to be stably inserted into the second protection cover 231, and the assembly form of the second protection cover 231 and the circuit board 4 is favorable for improving the installation stability of the circuit board 4, so that the use safety of the circuit board 4 is improved.

Referring to fig. 3, in some examples, a bottom of the first mounting cavity 21 is provided with a first routing hole 212, and the first routing hole 212 communicates with the first shield 211. The bottom of the third mounting cavity 23 is provided with a second wiring hole 232, and the second wiring hole 232 is communicated with the second protection cover 231.

Based on the above embodiment of the present application, the arrangement of the first routing hole 212 facilitates the electrical connection between the dielectric switch 3 installed in the first protection cover 211 and the conductor on the base 1, the arrangement of the second routing hole 232 facilitates the electrical connection between the circuit board 4 installed in the second protection cover 231 and the dielectric switch 3, and the form of opening the first routing hole 212 and the second routing hole 232 at the bottom of the bracket main body 2 is adopted, so that the dielectric switch 3 and the circuit board 4 can take electricity, while the space occupied by laying wires is reduced, and the space utilization rate on the bracket main body 2 and the base 1 is improved.

The base 1 is provided with a third wiring hole 12 corresponding to the first wiring hole 212 and a fourth wiring hole 13 corresponding to the second wiring hole 232, the electric lead of the dielectric switch 3 can directly pass through the first wiring hole 212 and the third wiring hole 12 to be electrically connected with a conductor at the bottom of the base 1 for electricity taking, and the electric lead of the circuit board 4 can directly pass through the second wiring hole 232 and the fourth wiring hole 13 to be electrically connected with the dielectric switch 3 or the conductor. The space occupied by laying the guide in the bracket main body 2 and the accommodating cavity 11 is effectively saved, the bracket main body 2 is convenient to install in the accommodating cavity 11, the situation that the wire is damaged due to the fact that the wire clip is arranged between the bracket main body 2 and the bottom wall of the accommodating cavity 11 is avoided, and the use safety of the circuit breaker is improved.

Referring to fig. 2, 6 and 7, in some examples, a first mounting groove 213 is provided on a sidewall of the first mounting chamber 21, a second mounting groove 221 is provided on a sidewall of the second mounting chamber 22, a third mounting groove 233 is provided on a sidewall of the third mounting chamber 23, and the first, second and third mounting grooves 213, 221 and 233 are located on the same side of the bracket body 2. The thermo-magnetic release 6 is provided with three, including a first thermo-magnetic release 61, a second thermo-magnetic release 62, and a third thermo-magnetic release 63, the first thermo-magnetic release 61 is installed in the first installation groove 213, the second thermo-magnetic release 62 is installed in the second installation groove 221, the third thermo-magnetic release 63 is installed in the third installation groove 233, the first separator 24 is partially disposed between the first thermo-magnetic release 61 and the second thermo-magnetic release 62, and the second separator 25 is disposed between the second thermo-magnetic release 62 and the third thermo-magnetic release 63.

Based on the above embodiment of the present application, the first mounting groove 213, the second mounting groove 221 and the third mounting groove 233 are formed on the same side of the bracket main body 2 in parallel, and are used for correspondingly mounting the same number of thermo-magnetic trippers 6, so that the arrangement form of the bracket main body 2 can play a role in isolation and insulation protection, avoid the mutual influence between the plurality of thermo-magnetic trippers 6, and reduce the possibility of misoperation of the thermo-magnetic trippers 6, thereby improving the working stability of the circuit breaker.

Referring to fig. 6 and 7, in the present example, the first mounting groove 213 corresponds to mount the first thermal magnetic release 61, the second mounting groove 221 corresponds to mount the second thermal magnetic release 62, and the third mounting groove 233 corresponds to mount the third thermal magnetic release 63. The groove walls among the first installation groove 213, the second installation groove 221 and the third installation groove 233 can play a corresponding isolating effect, and the first partition board 24 arranged between the first installation cavity 21 and the second installation cavity 22 correspondingly isolates the part of the first thermomagnetic release 61 extending out of the first installation cavity 21 and the part of the second thermomagnetic release 62 extending out of the second installation cavity 22, and meanwhile, the second partition board 25 arranged between the second installation cavity 22 and the third installation cavity 23 correspondingly isolates the part of the second thermomagnetic release 62 extending out of the second installation cavity 22 and the part of the third thermomagnetic release 63 extending out of the third installation cavity 23. The support main body 2 adopting the setting form is simple in structure, good in isolation effect, capable of playing a stable protection role on the thermomagnetic tripping system, and higher in practicality compared with the fact that a plurality of thermomagnetic tripping devices are directly installed in the base 1, the positioning effect and the installation stability are greatly improved.

Referring to fig. 2, 7 and 9, in some examples, a groove wall of the first mounting groove 213 is provided with a first fixing groove 2131, and the first thermal magnetic release 61 is engaged with the first fixing groove 2131. The groove wall of the second mounting groove 221 is provided with a second fixing groove 2211, and the second thermo-magnetic release 62 is clamped in the second fixing groove 2211. The wall of the third installation groove 233 is provided with a third fixing groove 2331, and the third thermomagnetic release 63 is clamped in the third fixing groove 2331.

According to the embodiment of the application, the fixing effect of the first mounting groove 213 on the first thermo-magnetic release 61, the fixing effect of the second mounting groove 221 on the second thermo-magnetic release 62 and the fixing effect of the third mounting groove 233 on the third thermo-magnetic release 63 can be improved, the situation that the thermo-magnetic release is unstable in mounting on the bracket main body 2 is effectively avoided, the first fixing groove 2131 is formed on the groove wall of the first mounting groove 213, the additional space in the bracket main body 2 is not occupied, the first thermo-magnetic release 61 can be directly clamped in the first fixing groove 2131 on the groove wall when being mounted on the first mounting groove 213, and the second fixing groove 2211 and the third fixing groove 2331 have the same effect as the first fixing groove 2131, and the structure is simple and the operation is convenient.

Referring to fig. 7 and 9, the first fixing groove 2131 is formed on a groove wall of the first mounting groove 213, which is close to the inside of the first mounting cavity 21, the opening direction of the first fixing groove 2131 is the same as the opening direction of the first mounting cavity 21, the opening direction of the first fixing groove 2131 corresponds to the mounting direction of the first thermo-magnetic release 61 to the first mounting groove 213, the first fixing groove 2131 can correspond to the fixing portion 64 on the first thermo-magnetic release 61, and the first fixing groove 2131 and the fixing portion 64 are clamped to realize positioning of the first thermo-magnetic release 61. Accordingly, the second and third fixing grooves 2211 and 2331 have the same structure as the first fixing groove 2131, and are not described herein.

Referring to fig. 4, 5 and 6, in some examples, the first separator 24 is provided with a first avoidance portion 242, and the first avoidance portion 242 is configured to avoid the first conductive plate 611. The second separator 25 is provided with a second avoidance portion 252, and the second avoidance portion 252 is configured to avoid the third conductive plate 631.

Based on the above embodiment of the present application, the first avoidance portion 242 is a portion disposed on the first partition 24 and communicating the first installation cavity 21 and the second installation cavity 22, the second avoidance portion 252 is a portion disposed on the second partition 25 and communicating the second installation cavity 22 and the third installation cavity 23, the first avoidance portion 242 is disposed so that the first conductive plate 611 in the first thermo-magnetic release 61 extends from the first installation cavity 21 into the second installation cavity 22, the second avoidance portion 252 is disposed so that the third conductive plate 631 in the third thermo-magnetic release 63 extends from the third installation cavity 23 into the second installation cavity 22, and the first avoidance portion 242 and the second avoidance portion 252 are disposed so as to facilitate improving the compactness of the internal structure of the bracket main body 2 and improve the utilization rate of the internal space of the bracket main body 2 on the premise that the structural stability of the bracket main body 2 is not affected.

The position that is close to first clamping groove 241 is offered to first portion 242 dodges on first baffle 24, the position that is close to second clamping groove 251 is offered to second portion 252 dodges on second baffle 25, first clamping groove 241 and second clamping groove 251 are used for clamping mutual-inductor 5, the opening of first portion 242 dodges makes first conductive plate 611 can stretch into second installation cavity 22 in order to pass mutual-inductor 5 from first installation cavity 21, the opening of second portion 252 makes third conductive plate 631 can stretch into second installation cavity 22 in order to pass mutual-inductor 5 from third installation cavity 23, because the position of opening of first portion 242 dodges and second portion 252 is close to mutual-inductor 5, can suitably reduce the length of first conductive plate 611 and second conductive plate 621, make support main part 2 and install between the functional unit on support main part 2 compacter, reduce the space occupation of support main part 2, be convenient for assemble in base 1.

Referring to fig. 6, in some examples, the bracket main body 2 is further provided with a avoidance notch 26, where the avoidance notch 26 is located on a side of the bracket main body 2 away from the first mounting groove 213, and the avoidance notch 26 extends from the position where the first mounting cavity 21 is located to the position where the third mounting cavity 23 is located.

Based on the above-described embodiment of the present application, the provision of the escape notch 26 may be used to escape the first conductive plate 611, the second conductive plate 621, and the third conductive plate 631, so that the first conductive plate 611, the second conductive plate 621, and the third conductive plate 631 protrude from the holder body 2. The opening position of the avoidance notch 26 is located on one side of the support main body 2, which is opposite to the first mounting groove 213, the first mounting groove 213 is used for mounting the first thermomagnetic release 61, so that when the first conductive plate 611 in the first thermomagnetic release 61 passes out of the support main body 2 from the other side of the support main body 2, the first conductive plate 611 is not required to be bent again to cross the side wall of the support main body 2, the first conductive plate 611 is convenient to be connected with a wiring terminal in a circuit breaker, and the second conductive plate 621 and the third conductive plate 631 are the same as each other, so that the avoidance notch 26 extends from the first mounting cavity 21 to the third mounting cavity 23 so that the second conductive plate 621 and the third conductive plate 631 can be more conveniently connected to the wiring terminal of the circuit breaker, the structure and the mounting operation of the thermomagnetic release are simplified, and the assembly efficiency of the thermomagnetic release in the circuit breaker is improved.

It should be noted that three avoidance notches 26 may be provided, and the three avoidance notches 26 respectively correspond to the first installation cavity 21, the second installation cavity 22, and the third installation cavity 23, which may also achieve the above technical effects, and have a small influence on the structural stability of the bracket main body 2.

Referring to fig. 9 to 11, the embodiment of the present application further provides a circuit breaker, which includes a base 1, a cover plate, a thermo-magnetic release, a transformer 5, a circuit board 4, a dielectric switch 3, and the bracket for the circuit breaker. The base 1 is provided with a containing cavity 11, the cover plate is connected with the base 1 and seals the containing cavity 11, the thermomagnetic release, the mutual inductor 5, the circuit board 4 and the dielectric switch 3 are arranged on the support body 2, and the support body 2 is arranged in the containing cavity 11.

According to the embodiment of the application, the circuit breaker with the bracket can simplify the operation of installing the functional components such as the thermomagnetic release, the mutual inductor 5, the circuit board 4, the dielectric switch 3 and the like into the circuit breaker, improve the assembly efficiency of the circuit breaker, and simultaneously, the structure on the bracket main body 2 can play roles of positioning and insulating protection on the functional components, and improve the installation stability and the use safety of the functional components.

In the actual assembly process of the circuit breaker, the thermomagnetic release, the transformer 5, the circuit board 4 and the dielectric switch 3 are firstly arranged at the corresponding positions on the bracket main body 2, then the integrated bracket main body 2 is arranged in the accommodating cavity 11, and finally the cover plate is connected on the base 1 to seal the accommodating cavity 11. The adoption is outside the holding chamber 11 of base 1 with thermomagnetic release, mutual-inductor 5, circuit board 4, dielectric switch 3 and support main part 2 combination success module install the mode of holding chamber 11 again, can avoid because of holding chamber 11 space less to the inconvenience that causes of individual installation, the installation rate is faster, effectively improve assembly efficiency, and reduced thermomagnetic release, mutual-inductor 5, circuit board 4 and dielectric switch 3 and installed the required structure of holding chamber 11 alone, the structure is simpler, the utilization ratio of base 1 inner space has been improved, the volume of circuit breaker has been reduced. In addition, the fixing and protecting structure on the bracket main body 2 can respectively position and protect the thermomagnetic release, the mutual inductor 5, the circuit board 4 and the dielectric switch 3, and compared with the existing independent installation method, the precision and stability are higher, and the protecting effect is stronger. It should be noted that other functional components can be further arranged in the circuit breaker, and the specific structure on the support main body 2 can be adjusted according to the structure of the functional components, so that the characteristics of high assembly efficiency and high installation stability can be met.

In some examples, a guide mounting groove 111 is provided on a side wall of the accommodating chamber 11, a guide mounting protrusion 27 is provided on an outer side wall of the holder body 2, and the holder body 2 is mounted to the accommodating chamber 11 by cooperation of the guide mounting protrusion 27 and the guide mounting groove 111.

Based on the above embodiment of the present application, the bracket body 2 is directly slidably mounted into the accommodating cavity 11 through the guiding action between the guiding mounting groove 111 and the guiding mounting protrusion 27, the mounting operation is simple and efficient, and meanwhile, the mounting of the bracket body 2 in the accommodating cavity 11 is more stable through the limiting action of the guiding mounting groove 111 on the guiding mounting protrusion 27, so that the shaking or offset is avoided, and the assembly accuracy is higher.

Referring to fig. 9 to 11, in the present example, the guide mounting projections 27 are provided in 4, two of which are portions of the first partition plate 24 extending out of the bracket body 2 from both side walls of the bracket body 2, and the other two of which are portions of the second partition plate 25 extending out of the bracket body 2 from both side walls of the bracket body 2. Correspondingly, 4 separation parts are arranged on two side walls of the accommodating cavity 11, the positions of the separation parts correspond to the positions of the first partition plate 24 and the second partition plate 25 on the bracket main body 2, 4 guide mounting grooves 111 are correspondingly formed in the 4 separation parts, and in the process of mounting the bracket main body 2 into the accommodating cavity 11, 4 guide mounting protrusions 27 are correspondingly inserted into the 4 guide mounting grooves 111. The adoption of the arrangement form is convenient for the bracket main body 2 to be assembled to the base 1, improves the assembly efficiency of the circuit breaker, and can also improve the installation stability of the bracket main body 2 in the accommodating cavity 11, thereby improving the installation stability of the functional components integrated on the bracket main body 2 and the connection stability with other components in the base 1. In addition, the transition fit or interference fit is adopted between the guide mounting groove 111 and the guide mounting protrusion 27, so that the fit tightness between the guide mounting groove 111 and the guide mounting protrusion 27 can be improved, and the assembly stability can be further improved.

Of course, the setting positions of the guide mounting groove 111 and the guide mounting protrusion 27 may be interchanged, that is, the side wall of the bracket main body 2 is provided with the guide mounting groove 111, the partition portion of the accommodating cavity 11 is provided with the guide mounting protrusion 27, and the setting form and the matching form are the same, so that the above-mentioned effects can be achieved.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A support for a circuit breaker, characterized in that, be provided with thermomagnetic release, mutual-inductor, circuit board and dielectric switch on the support, the support includes:

A bracket main body mounted to the base;

the first installation cavity is arranged on the bracket main body, and a first protective cover is arranged in the first installation cavity;

The second installation cavity is arranged on the bracket main body and is adjacent to the first installation cavity, the second installation cavity is separated from the first installation cavity by a first partition board, and a first clamping groove is formed in the first partition board;

The third installation cavity is arranged on the bracket main body and is positioned at one side of the second installation cavity away from the first installation cavity, a second protection cover is arranged in the third installation cavity, the third installation cavity and the second installation cavity are separated by a second partition board, and a second clamping groove is formed in the second partition board;

The first protective cover is used for installing the dielectric switch, the second protective cover is used for installing the circuit board, the first clamping groove and the second clamping groove are used for clamping the mutual inductor, and at least one of the first installation cavity, the second installation cavity and the third installation cavity is used for installing the thermomagnetic release.

2. The cradle for a circuit breaker according to claim 1, wherein the first shield is provided with a first clamping portion that can be clamped with a second clamping portion on the dielectric switch.

3. The bracket for a circuit breaker according to claim 2, wherein opposite guiding and positioning grooves are formed in the side wall of the second protective cover, the width of the guiding and positioning grooves is matched with the thickness of the circuit board, and the guiding and positioning grooves are slidably connected with the circuit board.

4. The cradle for a circuit breaker according to claim 3, wherein a bottom of the first installation cavity is provided with a first routing hole, the first routing hole being in communication with the first shield;

the bottom of the third installation cavity is provided with a second wiring hole, and the second wiring hole is communicated with the second protective cover.

5. The cradle for a circuit breaker according to any one of claims 1 to 4, wherein a first mounting groove is provided on a side wall of the first mounting chamber, a second mounting groove is provided on a side wall of the second mounting chamber, a third mounting groove is provided on a side wall of the third mounting chamber, and the first mounting groove, the second mounting groove and the third mounting groove are located on the same side of the cradle body;

The thermal magnetic release is provided with three, including first thermal magnetic release, second thermal magnetic release and third thermal magnetic release, first thermal magnetic release is installed in the first mounting groove, the second thermal magnetic release is installed in the second mounting groove, the third thermal magnetic release is installed in the third mounting groove, first baffle part sets up first thermal magnetic release with between the second thermal magnetic release, the second baffle sets up second thermal magnetic release with between the third thermal magnetic release.

6. The bracket for a circuit breaker according to claim 5, wherein a wall of the first installation groove is provided with a first fixing groove, and the first thermo-magnetic release is clamped to the first fixing groove;

The groove wall of the second mounting groove is provided with a second fixing groove, and the second thermomagnetic release is clamped in the second fixing groove;

The cell wall of third mounting groove is provided with the third fixed slot, third thermomagnetic release joint in the third fixed slot.

7. The bracket for a circuit breaker according to claim 6, wherein a first avoidance portion is provided on the first partition plate, the first avoidance portion being for avoiding the first conductive plate; the second baffle is provided with a second avoiding part, and the second avoiding part is used for avoiding the third conductive plate.

8. The bracket for a circuit breaker according to claim 7, wherein the bracket body is further provided with an avoidance notch, the avoidance notch is located on one side of the bracket body away from the first mounting groove, and the avoidance notch extends from the position of the first mounting cavity to the position of the third mounting cavity.

9. A circuit breaker comprising a base, a cover plate, a thermo-magnetic release, a transformer, a circuit board, a dielectric switch and a bracket for a circuit breaker according to any one of the preceding claims 1-8;

The base is provided with a containing cavity, the cover plate is connected with the base and seals the containing cavity, the thermomagnetic release, the mutual inductor, the circuit board and the dielectric switch are installed in the support main body, and the support main body is installed in the containing cavity.

10. The circuit breaker according to claim 9, wherein a guide mounting groove is provided on a side wall of the accommodation chamber, a guide mounting protrusion is provided on an outer side wall of the bracket body, and the bracket body is mounted in the accommodation chamber by cooperation of the guide mounting protrusion and the guide mounting groove.