CN214012861U - Casing, miniature circuit breaker and residual current circuit breaker - Google Patents

Abstract

A case, a miniature circuit breaker and a leakage circuit breaker. The problem of linkage hole need the cover plate to shelter from in the current circuit breaker casing, increase product cost is solved. The connecting rod connecting device comprises an operating mechanism and a shell, wherein a linkage hole for the connecting rod to penetrate through is formed in the shell, and a lead sealing piece is arranged at the linkage hole. The beneficial effects of the utility model are that, set up the lead sealing on the casing and shelter from the linkage hole, can effectively shelter from the foreign matter and get into the interior influence circuit breaker performance of casing, avoided the use of cover plate simultaneously, the cost is reduced can open convenient to use fast when needing the linkage.

Description

Casing, miniature circuit breaker and residual current circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus, concretely relates to casing and miniature circuit breaker and electric leakage circuit breaker.

Background

The low-voltage electrical appliance is an element or equipment which can be manually or automatically switched on and off according to external signals and requirements so as to realize switching, control, protection, detection, transformation and regulation of circuits or non-electric objects. The small Circuit Breaker (the English name: Miniature Circuit Breaker is also called Micro Circuit Breaker, is suitable for overload and short Circuit protection, and can also be used for the infrequent operation and conversion of a line under the normal condition. The conventional leakage circuit breaker is classified into a voltage type and a current type, and the current type is classified into an electromagnetic type and an electronic type.

Whether miniature circuit breaker or electric leakage circuit breaker all generally pack into the ammeter case when using and use, and usually set up a plurality of miniature circuit breakers or electric leakage circuit breaker or both sets up in the ammeter case. Use miniature circuit breaker as the example, in order to realize the coordinated control of separating brake sometimes when using, need set up the linkage hole between the miniature circuit breaker of difference, set up the hasp that the gangbar connects two different miniature circuit breakers in the linkage hole. Therefore, all set up the linkage hole among the current miniature circuit breaker usually, consequently in the actual production course of working, with this linkage hole and casing surface machine-shaping, and in transport, use, in order to avoid the foreign matter to get into miniature circuit breaker's casing and influence product property ability, consequently need shelter from the linkage hole through having sticky cover plate, can open the cover plate when needs and be convenient for the linkage. In order to make the cover plate flush with the outer surface of the housing, a groove is formed on the outer surface of the housing to facilitate the cover plate to be placed therein. Therefore, the existing miniature circuit breaker has the defects that the shell is troublesome to process, the cover plate increases the material cost, and the cover plate needs to be manually pasted, so that the labor cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

Need the cover plate to shelter from in solving the current circuit breaker casing among the background art linkage hole, increase product cost's problem, the utility model provides a casing and miniature circuit breaker and electric leakage circuit breaker.

The technical scheme of the utility model is that: a shell is provided with a linkage hole for a connecting rod to pass through, and a lead seal is arranged at the linkage hole.

As an improvement of the utility model, the lead sealing locate the linkage downthehole, the inner wall in lead sealing and linkage hole between be equipped with the clearance of being convenient for open the lead sealing.

As a further improvement of the present invention, the lead seal is disposed on the outer surface of the housing and flush with the outer surface of the housing, and the lead seal and the outer surface of the housing are mutually matched to form a gap which is convenient for opening the lead seal.

As a further improvement, the lead sealing piece is arranged on the inner surface of the shell and is parallel and level with the inner surface of the shell, and the lead sealing piece and the inner surface of the shell are mutually matched to form a gap which is convenient for opening the lead sealing piece.

As a further improvement of the utility model, the lead sealing include lead sealing and be used for the connecting portion that are connected with the casing, lead sealing mutually support through connecting portion and casing and form the clearance.

As a further improvement of the present invention, the number of the gaps is at least two.

As a further improvement of the utility model, the clearance is smaller than 1 mm.

As a further improvement of the present invention, the connecting portion and the housing are integrally formed.

A miniature circuit breaker comprises an operating mechanism and the shell.

An electric leakage circuit breaker comprises an operating mechanism, an electric leakage module and the shell.

The beneficial effects of the utility model are that, set up the lead sealing on the casing and shelter from the linkage hole, can effectively shelter from the foreign matter and get into the interior influence circuit breaker performance of casing, avoided the use of cover plate simultaneously, the cost is reduced can open convenient to use fast when needing the linkage.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another direction of the embodiment of the present invention.

Fig. 3 is a schematic structural view of the housing 1 in fig. 1.

Fig. 4 is a schematic structural view of the housing of fig. 2.

Figure 5 is the utility model discloses the structure schematic diagram when needing to cooperate other circuit breakers to use.

In the figure, 1, a housing; 2. a linkage hole; 3. a lead seal; 31. a lead seal part; 32. a connecting portion; 4. a gap; 5. an operating mechanism.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

referring to fig. 1 and fig. 2-5, the shell is characterized in that a linkage hole 2 for a connecting rod to pass through is formed in the shell 1, and a lead seal 3 is arranged at the linkage hole 2. The beneficial effects of the utility model are that, set up the lead sealing on the casing and shelter from the linkage hole, can effectively shelter from the foreign matter and get into the interior influence circuit breaker performance of casing, avoided the use of cover plate simultaneously, the cost is reduced can open convenient to use fast when needing the linkage.

The first embodiment is as follows: referring to fig. 1-5, the lead seal 3 is disposed in the linkage hole 2, and a gap 4 for opening the lead seal 3 is disposed between the lead seal 3 and the inner wall of the linkage hole 2. Example two (not shown in the figure): lead seal 3 locate on the surface of casing 1 and with casing 1 surface parallel and level, lead seal 3 and casing 1 surface mutually support and form the clearance 4 of being convenient for open lead seal 3. Example three (not shown in the figure): the lead seal 3 is arranged on the inner surface of the shell 1 and is flush with the inner surface of the shell 1, and the lead seal 3 and the inner surface of the shell 1 are mutually matched to form a gap 4 which is convenient for opening the lead seal 3. The utility model discloses well lead sealing can be downthehole at surface, internal surface and the linkage of casing. Lead sealing is convenient for open when setting up on the surface, and the lead sealing avoids damage lead sealing such as collision when locating the linkage downthehole does the utility model discloses an optimal mode.

The lead seal 3 comprises a lead seal part 31 and a connecting part 32 used for being connected with the shell 1, and the lead seal part 31 and the shell 1 are matched with each other through the connecting part 32 to form the gap 4. The structure is convenient for lead sealing and opening and has simple structure.

The number of said gaps 4 is at least two. Generally, two, three, four, five, etc. connecting portions are provided so as to form a plurality of gaps. In the attached drawings 1 and 2, the shell on two sides of the circuit breaker of the utility model discloses it has adopted five clearances and three clearance respectively, and a plurality of clearances can be with the clearance separated littleer, play the effect of blockking the foreign matter. Certainly, two shells at the circuit breaker outermost side can adopt the same lead sealing structure also can adopt different lead sealing structures when concrete implementation, more specifically say, also can set up structures such as stay cord or drag hook, can not need to open the lead sealing spare with the help of the instrument.

The gap 4 is less than 1 mm. The structure can reliably prevent fine foreign matters from entering the shell. Of course, the gap may be slightly larger according to actual conditions.

The connecting portion 32 is integrally formed with the housing 1. Such a structure facilitates production and processing of the product.

An earth leakage circuit breaker comprises an operating mechanism 5, an earth leakage module and a housing. See fig. 1-5. A miniature circuit breaker includes an operating mechanism 5 and a housing. The utility model discloses a casing can use in low-voltage apparatus such as miniature circuit breaker, earth leakage circuit breaker.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims (10)

1. The shell is characterized in that a linkage hole (2) for a connecting rod to pass through is formed in the shell (1), and a lead sealing piece (3) is arranged at the linkage hole (2).

2. The shell according to claim 1, characterized in that the lead seal (3) is arranged in the linkage hole (2), and a gap (4) convenient for opening the lead seal (3) is arranged between the lead seal (3) and the inner wall of the linkage hole (2).

3. The housing according to claim 1, characterized in that the lead seal (3) is disposed on the outer surface of the housing (1) and flush with the outer surface of the housing (1), and the lead seal (3) and the outer surface of the housing (1) cooperate with each other to form a gap (4) for facilitating the opening of the lead seal (3).

4. The housing according to claim 1, characterized in that the lead seal (3) is provided on the inner surface of the housing (1) and flush with the inner surface of the housing (1), and the lead seal (3) and the inner surface of the housing (1) cooperate with each other to form a gap (4) for facilitating the opening of the lead seal (3).

5. The housing according to claim 2, characterized in that the lead seal (3) comprises a lead seal (31) and a connecting portion (32) for connecting with the housing (1), the lead seal (31) and the housing (1) mutually cooperate to form the gap (4) through the connecting portion (32).

6. Housing according to claim 2, characterized in that the number of gaps (4) is at least two.

7. A housing according to claim 2, characterized in that said gap (4) is smaller than 1 mm.

8. The housing according to claim 5, characterized in that the connecting portion (32) is formed integrally with the housing (1).

9. A miniature circuit breaker, characterized by: comprising an operating mechanism (5) and a housing according to any of claims 1-8.

10. An earth leakage circuit breaker, characterized in that: comprising an operating mechanism (5), an earth leakage module and a housing according to any of claims 1-8.

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