CN219203055U

CN219203055U - Plastic shell leakage circuit breaker

Info

Publication number: CN219203055U
Application number: CN202223610537.9U
Authority: CN
Inventors: 石继良; 郑逸
Original assignee: Yueqing Nuomake Technology Co ltd
Current assignee: Yueqing Nuomake Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to a plastic shell leakage breaker which comprises a breaker shell, wherein a concave cavity is formed in the surface of the breaker shell, and an upper cover for fastening a circuit board in the concave cavity in a pressing mode is arranged on the upper surface of the breaker shell. Through increasing the upper cover on original circuit breaker, simultaneously, add the cavity that is used for installing the circuit board at the circuit breaker surface to can install the circuit board in the cavity outside the circuit breaker casing, keep apart circuit board and circuit breaker inside, avoid the electronic components on the circuit board to spray the main circuit of electric leakage circuit breaker on the electric arc that causes because of the trouble and arouse the trouble.

Description

Plastic shell leakage circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a plastic shell leakage circuit breaker.

Background

In the prior art, a circuit board (mainly comprising a power supply circuit board and a control circuit board) is generally arranged in a plastic shell leakage breaker. When faults occur, an electronic element on the circuit board can spray an electric arc between phases of a main loop of the leakage breaker due to the faults, so that local short circuit of a power grid is caused, safety accidents are caused, and certain potential safety hazards and design defects exist.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a plastic shell leakage breaker.

The technical scheme adopted by the utility model is as follows: the utility model provides a plastic case electric leakage circuit breaker, includes the circuit breaker casing, be equipped with the cavity on the circuit breaker casing surface, be equipped with the upper cover that is fixed in above-mentioned cavity with circuit board press fastening on the circuit breaker casing upper surface.

Further, the cavities include a first cavity for mounting a power circuit board and a second cavity for mounting a control circuit board.

Further, the ends of the first concave cavity and the second concave cavity are communicated through grooves.

Further, the second concave cavity is provided with a threading hole at one end of the groove.

Further, the circuit breaker shell comprises a bottom shell and a middle cover covered on the bottom shell, and the concave cavity is arranged on the middle cover.

Further, the middle cover and the upper cover are provided with fixing holes for fixing, and the middle cover and the upper cover are fixedly connected through bolts.

Furthermore, positioning grooves are formed in two sides of the middle cover, and positioning convex plates which are used for being matched with the positioning grooves are arranged on the upper cover.

Further, the upper cover is provided with a raised control area, and a button hole for the trip button to penetrate out, a handle groove for the operation handle to penetrate out and a plurality of control holes for the control button to penetrate out are arranged in the control area.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the upper cover is added on the original circuit breaker, and meanwhile, the concave cavity for installing the circuit board is additionally arranged on the surface of the circuit breaker, so that the circuit board can be installed in the concave cavity outside the circuit breaker shell, the circuit board is isolated from the circuit breaker, and the fault caused by the fact that the electric arc of the electronic components on the circuit board is sprayed onto the main circuit of the residual current circuit breaker due to the fault is avoided.

2. When the circuit board is out of place and is broken or failed and damaged and needs to be replaced, the damaged circuit board can be replaced only by taking down the upper cover, the micro-communication replacement of the circuit board is more convenient, and the defect that the whole product needs to be taken down when the circuit board is replaced by replacing the transmission leakage circuit breaker is overcome.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages.

The utility model will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is an exploded view of the present utility model.

Fig. 3 is a schematic structural view of the upper cover.

Fig. 4 is a schematic structural view of the middle cap.

In fig. 1-4: 1. a circuit breaker housing; 2. an upper cover; 3. a first cavity; 4. a second cavity; 5. a groove; 6. a threading hole; 7. a bottom case; 8. a middle cover; 9. a fixing hole; 10. a positioning groove; 11. positioning a convex plate; 12. a manipulation zone; 13. a button hole; 14. a handle groove; 15. a control hole; 16. a power supply circuit board; 17. and a control circuit board.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

The utility model provides a plastic shell leakage breaker.

In this embodiment, referring to fig. 1-4, the plastic shell leakage breaker comprises a breaker housing 1, a cavity is arranged on the surface of the breaker housing 1, and an upper cover 2 for fastening and fixing a circuit board in the cavity is arranged on the upper surface of the breaker housing.

According to the technical scheme, the upper cover is additionally arranged on the original circuit breaker, and meanwhile, the concave cavity for installing the circuit board is additionally arranged on the surface of the circuit breaker, so that the circuit board can be installed in the concave cavity outside the circuit breaker shell, the circuit board is isolated from the circuit breaker, and faults caused by the fact that electric arcs caused by faults of electronic components on the circuit board are sprayed to the main circuit of the residual current circuit breaker are avoided.

In addition, when the circuit board is arranged externally and is in fault or failure and damage, the damaged circuit board can be replaced only by taking down the upper cover, the micro-letter replacement of the circuit board is more convenient, and the defect that the whole product needs to be taken down when the circuit board is replaced by replacing the transmission leakage circuit breaker is overcome.

Specifically, the cavity 2 includes a first cavity 3 for mounting the power circuit board 16 and a second cavity 4 for mounting the control circuit board 17, and ends of the first cavity and the second cavity are communicated through grooves.

In this embodiment, the cavity sets up two, is used for installing power supply circuit board and control circuit board respectively, sets up perpendicularly between first cavity and the second cavity, and communicates through recess 5, is convenient for wiring between power supply circuit board and the control circuit board.

Specifically, the second concave cavity is provided with a threading hole 6 at one end of the groove.

In the embodiment, the threading hole is used for threading the lead, so that wiring of the circuit board is facilitated.

Specifically, the breaker shell comprises a bottom shell 7 and a middle cover 8 covered on the bottom shell, and the concave cavity is arranged on the middle cover; the middle cover and the upper cover are provided with fixing holes 9 for fixing, and the middle cover and the upper cover are fixedly connected through bolts.

In this embodiment, through the removable connection of bolt between well lid and the upper cover, easy dismounting is convenient for carry out dismouting change to the circuit board in the upper cover.

Specifically, positioning grooves 10 are formed in two sides of the middle cover, and positioning convex plates 11 which are used for being matched with the positioning grooves 10 are arranged on the upper cover.

In the embodiment, the positioning groove and the positioning convex plate are arranged for covering and positioning the upper cover, so that the installation is rapid and accurate.

Specifically, the upper cover is provided with a raised control area 12, and a button hole 13 for the trip button to pass through, a handle groove 14 for the operating handle to pass through and a plurality of control holes 15 for the control button to pass through are arranged in the control area.

The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a plastic case electric leakage circuit breaker, includes circuit breaker casing, its characterized in that: the circuit breaker is characterized in that a concave cavity is formed in the surface of the circuit breaker shell, and an upper cover for pressing and fastening the circuit board in the concave cavity is arranged on the upper surface of the circuit breaker shell.

2. The molded case residual current circuit breaker according to claim 1, wherein: the cavity includes a first cavity for mounting a power circuit board and a second cavity for mounting a control circuit board.

3. The molded case residual current circuit breaker according to claim 2, wherein: the ends of the first concave cavity and the second concave cavity are communicated through the grooves.

4. A molded case residual current circuit breaker according to claim 3, wherein: and a threading hole is formed in one end of the second concave cavity, which is positioned at the groove.

5. The molded case residual current circuit breaker according to claim 1, wherein: the circuit breaker shell comprises a bottom shell and a middle cover covered on the bottom shell, and the concave cavity is arranged on the middle cover.

6. The molded case residual current circuit breaker according to claim 5, wherein: the middle cover and the upper cover are provided with fixing holes for fixing, and the middle cover and the upper cover are fixedly connected through bolts.

7. The molded case residual current circuit breaker according to claim 6, wherein: the two sides of the middle cover are provided with positioning grooves, and the upper cover is provided with positioning convex plates which are used for being matched with the positioning grooves.

8. The molded case residual current circuit breaker according to claim 1, wherein: the upper cover is provided with a raised control area, and a button hole for the trip button to pass through, a handle groove for the operation handle to pass through and a plurality of control holes for the control button to pass through are arranged in the control area.