CN213340239U - Accessory shell for circuit breaker and circuit breaker - Google Patents

Abstract

The utility model relates to a low-voltage apparatus field especially relates to an annex casing for circuit breaker, and it is including opening the casing body that has the cavity, the bottom of casing body supports and leans on through-hole department at circuit breaker annex chamber. The utility model also provides an install the circuit breaker of annex casing. The utility model provides an accessory casing, through having the cavity on casing body, the through-hole on the breaker annex chamber has been plugged up to casing body's bottom to effectively obstructed the direct conduction of primary loop heat, also prevented that the moving contact from breaking the free metal particle that produces and directly getting into the annex intracavity, and then improved electronic module's operational environment and life, set up the cavity and also make enough creepage distance between primary loop and the circuit module, establish good insulation, the protectiveness is strong; in addition, the accessory shell is a common shell, can be suitable for the installation of electronic modules with different functions, and is quick to install.

Description

Accessory shell for circuit breaker and circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to an annex casing for circuit breaker.

Background

With the development of the power distribution internet of things technology, the circuit breaker gradually integrates a plurality of secondary devices. However, as functions increase, efficient use of the internal space of the circuit breaker has placed higher demands. The original circuit breaker accessory cavity is mostly used for installing auxiliary contact accessories, and the cavity space cannot be effectively utilized under the condition that auxiliary contacts are not required to be installed. The cavity space is originally used for installing an auxiliary contact accessory, the moving contact of the cavity is internally matched with the moving contact of the primary loop in a transmission way as required, a through hole is arranged, the heat of the primary loop and free metal particles generated by breaking of the moving contact can directly enter the cavity, and the heat insulation and insulation protection of the secondary electronic module are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides an annex casing and circuit breaker for circuit breaker aims at solving the thermal direct conduction in primary loop and the disconnected free metal particle who produces of moving contact branch and gets into the problem in the annex intracavity.

In order to achieve the above object, the utility model provides an annex casing for circuit breaker, including opening the casing body that has the cavity, the bottom of casing body supports and leans on the through-hole department in circuit breaker annex chamber.

Preferably, the shell body is provided with a buckle, and the buckle is arranged on the circuit breaker.

Preferably, a protrusion is arranged on the shell body; the protrusion is connected with the buckle.

Preferably, the buckle is an elastic hook.

Preferably, the accessory housing for a circuit breaker further comprises a protruding slot; the protruding groove is formed in the shell body.

Further, the utility model also provides a circuit breaker, a serial communication port, including the aforesaid annex casing for the circuit breaker.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect:

the utility model provides an accessory casing, through having the cavity on casing body, the through-hole on the breaker annex chamber has been plugged up to casing body's bottom to effectively obstructed the direct conduction of primary loop heat, also prevented that the moving contact from breaking the free metal particle that produces and directly getting into the annex intracavity, and then improved electronic module's operational environment and life, set up the cavity and also make enough creepage distance between primary loop and the circuit module, establish good insulation, the protectiveness is strong; in addition, the accessory shell is a common shell, can be suitable for the installation of electronic modules with different functions, and is quick to install.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an accessory housing for a circuit breaker according to the present invention;

fig. 2 is a schematic view of an accessory housing for a circuit breaker with an electronic module mounted thereon;

fig. 3 is a schematic view illustrating an installation position of the accessory housing for the circuit breaker according to the present invention;

fig. 4 is a schematic sectional view of an installation position of the accessory housing for the circuit breaker according to the present invention.

[ description of reference ]

1: a housing body; 2: buckling; 3: a protrusion; 4: a protruding groove; 5: an electronic module; 6: a concave cavity; 7: a through hole; 8: a circuit breaker.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides an annex casing for circuit breaker, as shown in figure 1, it includes: open casing body 1 that has cavity 6, casing body 1's bottom supports and leans on at through-hole 7 department in circuit breaker annex chamber, the utility model provides an annex casing, through it has cavity 6 to open on casing body 1, through-hole 7 on the circuit breaker annex chamber has been plugged up to casing body 1's bottom, thereby effective separation the thermal direct conduction in primary loop, the free metal particle that has also prevented the moving contact branch from dividing the production directly gets into the annex intracavity, and then electronic module 5's operational environment and life have been improved, it also makes to have sufficient creepage distance between primary loop and the circuit module to set up cavity 6, good insulating nature has, protective nature is strong.

Further, be equipped with buckle 2 on casing body 1, buckle 2 is detained and is established on circuit breaker 8, and is concrete, buckle 2 can locate casing body 1's both ends and be connected with casing body 1.

In addition, a bulge 3 is arranged on the shell body 1; the bulges 3 are connected with the buckles 2, the electronic module 5 is convenient to mount through the bulges 3, the module fixing effect is achieved, during mounting, the electronic module 5 can be firstly abutted and buckled on one of the bulges 3 and then buckled on the other bulge 3, and therefore the electronic module 5 is fixed, and the operation and assembly are simple and reliable.

Further, referring to fig. 1 and 3, the buckle 2 is an elastic hook, and the whole accessory housing is mounted on the circuit breaker 8 through the elastic hook, so that the function of quick mounting is achieved. The quick assembly on the circuit breaker 8 without special tools results in a reliable fixation.

In addition, the accessory housing for the circuit breaker further comprises a protruding groove 4; on casing body 1 was located to protruding groove 4, it is concrete, protruding groove 4 can dock with casing body 1, and link to each other with buckle 2, can play supplementary installation and fixed electronic module 5's effect.

Further, referring to fig. 3 and 4, the utility model also provides a circuit breaker 8, including the aforesaid the circuit breaker accessory casing, the utility model provides an accessory casing installs on circuit breaker 8. Through opening cavity 6 on casing body 1, the through-hole 7 on the circuit breaker annex chamber has been plugged up to the bottom of casing body 1 to effectively obstructed the direct conduction of primary circuit heat, also prevented that the moving contact from breaking the disjunctor free metal particle that produces directly gets into the annex intracavity, and then increased circuit breaker 8's life.

It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.

Claims (6)

1. The accessory shell for the circuit breaker is characterized by comprising a shell body with a concave cavity, wherein the bottom of the shell body is abutted against a through hole of an accessory cavity of the circuit breaker.

2. The accessory housing for a circuit breaker of claim 1, wherein: the shell body is provided with a buckle, and the buckle is arranged on the circuit breaker.

3. The accessory housing for a circuit breaker of claim 2, wherein: the shell body is provided with a bulge; the protrusion is connected with the buckle.

4. The accessory housing for a circuit breaker of claim 3, wherein: the buckle is an elastic hook.

5. The accessory housing for a circuit breaker according to any one of claims 1 to 4, wherein: the accessory housing for the circuit breaker further comprises a protruding groove; the protruding groove is formed in the shell body.

6. A circuit breaker comprising an accessory housing for a circuit breaker according to any one of claims 1 to 5.

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