CN219267562U

CN219267562U - Universal shell of miniature circuit breaker

Info

Publication number: CN219267562U
Application number: CN202222651670.2U
Authority: CN
Inventors: 张帅; 黎永胜; 余存泰; 高旭宇
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-06-27
Anticipated expiration: 2032-10-10

Abstract

A universal housing for a miniature circuit breaker. The problem that current miniature circuit breaker two kinds of high explosion hoods can not general casing is mainly solved. The method is characterized in that: a first positioning mechanism (5) and a second positioning mechanism (6) are arranged in the mounting groove, the arc-extinguishing chambers comprise a first arc-extinguishing chamber (41) and a second arc-extinguishing chamber (42) with different heights, and the first positioning mechanism is used for limiting the first arc-extinguishing chamber in the height direction; the second positioning mechanism is used for limiting the second arc extinguishing chamber in the height direction. The utility model provides a general shell of a miniature circuit breaker, which increases the universality of parts of products and saves the management cost and the assembly cost of the parts.

Description

Universal shell of miniature circuit breaker

Technical Field

The utility model relates to the field of circuit breakers, in particular to a general shell of a miniature circuit breaker.

Background

The miniature circuit breaker is also called miniature circuit breaker, is suitable for overload and short-circuit protection of the circuit, and can be used for switching the circuit without frequent operation under normal conditions. The miniature circuit breaker is mainly used in various places such as industry, business, high-rise and civil houses.

In the existing distribution market, in order to save cost, the circuit breaker is designed to reduce the original arc extinguishing chamber and the arc striking plate, and meanwhile, a new shell is developed to match the arc extinguishing chamber, the arc striking plate and other parts, so that the universality of the new and old parts cannot be achieved, and the materials such as the existing shell are increased.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides a general shell of a miniature circuit breaker, which mainly solves the problem that arc-extinguishing chambers with two heights of the traditional miniature circuit breaker cannot be used as general shells.

The technical scheme adopted by the utility model is as follows:

the universal shell of the miniature circuit breaker comprises a base and an arc-extinguishing chamber, wherein the base is provided with an installation groove for placing the arc-extinguishing chamber, a first positioning mechanism and a second positioning mechanism are arranged in the installation groove, the arc-extinguishing chamber comprises a first arc-extinguishing chamber and a second arc-extinguishing chamber which are different in height,

the first positioning mechanism is used for limiting the first arc extinguishing chamber in the height direction;

the second positioning mechanism is used for limiting the second arc extinguishing chamber in the height direction.

The first positioning mechanism comprises a first top plate and a first bottom plate which are arranged in the mounting groove, the first top plate is opposite to the top end face of the first arc-extinguishing chamber, and the first bottom plate is opposite to the bottom end face of the first arc-extinguishing chamber.

The first bottom plate is provided with a side plate which is vertically arranged, and the side plate is arranged opposite to the side wall of the first arc extinguishing chamber.

The second positioning mechanism comprises a second top plate and a second bottom plate, the second top plate is opposite to the top end face of the second arc-extinguishing chamber, and the second bottom plate is opposite to the bottom end face of the second arc-extinguishing chamber.

The second positioning mechanism comprises a second top plate and a second bottom plate, the second top plate is opposite to the top end face of the second arc-extinguishing chamber, the second bottom plate is opposite to the bottom end face of the second arc-extinguishing chamber, and the second bottom plate is the side plate.

And a baffle is also arranged in the base, and the baffle is arranged opposite to the side end face of the second arc extinguishing chamber.

A first limiting groove is formed between the first bottom plate and the inner wall of the bottom of the base, and one end of the first limiting groove, which is used for the first arc striking piece, extends in.

The novel shell comprises a shell body and is characterized by further comprising a third bottom plate, wherein a second limiting groove is formed between the third bottom plate and the inner wall of the shell body and is used for enabling one end of a second limiting piece to extend in.

The first limit groove is communicated with the second limit groove.

The beneficial effects of the utility model are as follows: the utility model provides a general shell of a miniature circuit breaker, which increases the universality of parts of products and saves the management cost and the assembly cost of the parts.

Drawings

Fig. 1 is a partial perspective view illustrating a first arc chute according to an embodiment of the present utility model.

Fig. 2 is a partial perspective view illustrating a second arc chute according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a base, a first striking plate, and a second striking plate according to an embodiment of the utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the universal shell of the miniature circuit breaker comprises a base 1 and an arc extinguishing chamber, wherein an installation groove 3 for placing the arc extinguishing chamber is formed in the base, a first positioning mechanism and a second positioning mechanism are arranged in the installation groove, the arc extinguishing chamber comprises a first arc extinguishing chamber 41 and a second arc extinguishing chamber 42 with different heights, and the first positioning mechanism is used for limiting the first arc extinguishing chamber in the height direction; the second positioning mechanism is used for limiting the second arc extinguishing chamber in the height direction. The explosion chamber is installed in the casing, and its front and back terminal surface can be spacing by base and upper cover, and is spacing by location muscle and striking arch 18 about, and main direction of height has adopted two positioning mechanism to carry out spacingly to the explosion chamber of two kinds of heights respectively, and it should be noted that, this explosion chamber same height can install different arc extinguishing bars piece, can be for 7 or 9 etc. for example, should first, two explosion chambers alternative installation can.

In this embodiment, as shown in the drawing, the first positioning mechanism includes a first top plate 51 and a first bottom plate 52 disposed in the mounting groove, where the first top plate is disposed opposite to the top end surface of the first arc extinguishing chamber, and the first bottom plate is disposed opposite to the bottom end surface of the first arc extinguishing chamber. The first top plate and the second top plate are used for limiting the height direction of the first arc extinguishing chamber, the opposite arrangement can be contact or have a gap, the gap can be 1-3 mm, and the gap can be designed according to actual requirements.

In this embodiment, as shown in the drawing, the first bottom plate is provided with a side plate that is vertically disposed, and the side plate is disposed opposite to the side wall of the first arc extinguishing chamber. The side plates play a role in limiting in the left-right direction, so that the stability of installation is further improved.

In this embodiment, as shown in the drawing, the second positioning mechanism includes a second top plate 61 and a second bottom plate 62, where the second top plate is disposed opposite to the top end surface of the second arc extinguishing chamber, and the second bottom plate is disposed opposite to the bottom end surface of the second arc extinguishing chamber. Similarly, the opposite arrangement can be contact or have a gap, the gap can be 1-3 mm, and the gap can be designed according to actual requirements.

In this embodiment, as shown in the drawing, the second positioning mechanism includes a second top plate 61 and a second bottom plate 62, where the second top plate is disposed opposite to the top end surface of the second arc extinguishing chamber, the second bottom plate is disposed opposite to the bottom end surface of the second arc extinguishing chamber, and the second bottom plate is the side plate. Similarly, the opposite arrangement can be contact or have a gap, the gap can be 1-3 mm, and the gap can be designed according to actual requirements, and the fact that the side plate is adopted as the second bottom plate for use, the top end face of the side plate plays a limiting role, and the structure is more compact.

In this embodiment, as shown in the figure, the second top plate is in limit fit with the lateral end surface of the first arc extinguishing chamber. The lateral end face of the second top plate is matched with the lateral end face of the first arc extinguishing chamber, so that the structure is multipurpose and more compact.

In this embodiment, as shown in the drawing, a baffle 11 is further disposed in the base, and the baffle is disposed opposite to the side end surface of the second arc extinguishing chamber. The baffle plays a limiting role on the lateral end face of the second arc extinguishing chamber.

In this embodiment, as shown in the drawing, a first limiting groove 13 is disposed between the first bottom plate and the inner wall of the bottom of the base, and the first limiting groove is used for extending into one end of the first arc striking plate 71. The long striking piece can be adapted, and one end of the striking piece stretches into the first limit groove to limit.

In this embodiment, as shown in the drawing, the device further includes a third bottom plate 63, and a second limiting slot 14 is disposed between the third bottom plate and the inner wall of the housing, where one end of the second limiting piece 72 extends into the second limiting slot. Meanwhile, two kinds of arc striking pieces with different lengths can be adapted, and the universality of the shell is further improved.

In this embodiment, as shown in the drawing, the first limiting groove is communicated with the second limiting groove.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The embodiments described with reference to the drawings are exemplary and intended to be illustrative of the utility model and should not be construed as limiting the utility model. The examples should not be construed as limiting the utility model, but any modifications based on the spirit of the utility model should be within the scope of the utility model.

Claims

1. The utility model provides a general casing of miniature circuit breaker, includes base (1) and explosion chamber, be equipped with mounting groove (3) that are used for placing the explosion chamber on the base, its characterized in that: the installation groove is internally provided with a first positioning mechanism and a second positioning mechanism, the arc-extinguishing chambers comprise a first arc-extinguishing chamber (41) and a second arc-extinguishing chamber (42) with different heights,

2. A universal housing for a miniature circuit breaker as recited in claim 1, wherein: the first positioning mechanism comprises a first top plate (51) and a first bottom plate (52) which are arranged in the mounting groove, the first top plate is opposite to the top end face of the first arc-extinguishing chamber, and the first bottom plate is opposite to the bottom end face of the first arc-extinguishing chamber.

3. A universal housing for a miniature circuit breaker as set forth in claim 2 wherein: the first bottom plate is provided with a side plate which is vertically arranged, and the side plate is arranged opposite to the side wall of the first arc extinguishing chamber.

4. A universal housing for a miniature circuit breaker as recited in claim 1, wherein: the second positioning mechanism comprises a second top plate (61) and a second bottom plate (62), the second top plate is opposite to the top end face of the second arc-extinguishing chamber, and the second bottom plate is opposite to the bottom end face of the second arc-extinguishing chamber.

5. A universal housing for a miniature circuit breaker as set forth in claim 3 wherein: the second positioning mechanism comprises a second top plate (61) and a second bottom plate (62), the second top plate is opposite to the top end face of the second arc-extinguishing chamber, the second bottom plate is opposite to the bottom end face of the second arc-extinguishing chamber, and the second bottom plate is the side plate.

6. A universal housing for a miniature circuit breaker according to claim 4 or 5, characterized in that: the second top plate is in limit fit with the lateral end face of the first arc extinguish chamber.

7. A universal housing for a miniature circuit breaker as recited in claim 1, wherein: and a baffle (11) is further arranged in the base, and the baffle and the lateral end face of the second arc extinguishing chamber are oppositely arranged.

8. A universal housing for a miniature circuit breaker as set forth in claim 2 wherein: a first limit groove (13) is formed between the first bottom plate and the inner wall of the bottom of the base, and one end of the first limit groove is used for extending into the first arc striking piece (71).

9. The universal housing for a miniature circuit breaker of claim 8, wherein: the novel anti-theft device further comprises a third bottom plate (63), a second limiting groove (14) is formed between the third bottom plate and the inner wall of the shell, and one end of the second limiting groove is used for extending in the second limiting piece (72).

10. The universal housing for a miniature circuit breaker of claim 9, wherein: the first limit groove is communicated with the second limit groove.