CN219658647U

CN219658647U - Easy-to-detach shell structure of circuit breaker

Info

Publication number: CN219658647U
Application number: CN202321232351.6U
Authority: CN
Inventors: 谢昕; 黄丽; 柳治平; 黄珏
Original assignee: Zhejiang Chuangqi Electric Co ltd
Current assignee: Zhejiang Chuangqi Electric Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-08
Anticipated expiration: 2033-05-18

Abstract

The circuit breaker is convenient to disassemble the shell structure. The circuit breaker mainly solves the problem that a first shell and a second shell of the existing circuit breaker are difficult to disassemble. The method is characterized in that: the first shell comprises a first top plate (3), the second shell comprises a second top plate (4), the second top plate comprises a first surface (41) and a second surface (42) which are different in height, the second surface is in contact with the bottom end face of the first top plate, and a gap (3) exists between the first surface and the bottom end face of the first top plate. The utility model provides a convenient-to-disassemble shell structure of a circuit breaker, which reduces the contact area of a first shell and a second shell, reduces friction during disassembly, and further, a second surface at the opposite outer side is contacted with the bottom of a first top plate, so that no gap is left on the appearance of a product.

Description

Easy-to-detach shell structure of circuit breaker

Technical Field

The utility model relates to the field of circuit breakers, in particular to a convenient-to-detach shell structure of a circuit breaker.

Background

According to the intelligent demand of the power supply network in China, the national power grid company requires the intelligent power supply network. Therefore, a terminal actuator of the power supply network, i.e., a miniature circuit breaker (or miniature circuit breaker), is required to perform the tripping and closing functions of the upper-end signal. Therefore, the current development trend of the miniature circuit breaker is that the miniature circuit breaker not only has the traditional manual opening and closing and overcurrent overload automatic tripping functions, but also needs to have the automatic opening and closing and reclosing functions so as to realize remote control; especially, the intelligent ammeter is combined, and the functions of automatic tripping and outage of arrearage and automatic closing and power transmission of charging are realized.

As shown in CN108155069a, a large contact surface exists between the first top plate of the first housing and the top plate of the second housing of the current circuit breaker after the first housing and the second housing are mounted, so that the first housing and the second housing are difficult to open due to large friction force when the first housing and the second housing are detached.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides a convenient-to-disassemble shell structure of a circuit breaker, which mainly solves the problem that a first shell and a second shell of the prior circuit breaker are difficult to disassemble.

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

the utility model provides a just, tear shell structure open of circuit breaker, including first casing and the second casing of detachable connection, first casing includes first roof, the second casing includes the second roof, the second roof includes high different first face and second face, the second face with the bottom terminal surface contact of first roof, first face with there is the clearance between the bottom terminal surface of first roof.

The first surface is arranged on the inner side of the second surface

The second top plate comprises a main plate and a first boss, the first surface is arranged on the upper end face of the main plate, and the second surface is arranged on the upper end face of the first boss.

The first face has an area greater than an area of the second face.

The first housing and the second housing are connected by a fastener.

The first shell is internally provided with a first fixing seat, the second shell is internally provided with a second fixing seat, and the first fixing seat and the second fixing seat are respectively provided with a through hole for installing a fastener.

The second fixing seat is provided with a second boss, and the first fixing seat is provided with a guide groove matched with the second boss.

The beneficial effects of the utility model are as follows: the utility model provides a convenient-to-disassemble shell structure of a circuit breaker, which reduces the contact area of a first shell and a second shell, reduces friction during disassembly, and further, a second surface at the opposite outer side is contacted with the bottom of a first top plate, so that no gap is left on the appearance of a product.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

FIG. 2 is a schematic cross-sectional view of one embodiment of the present utility model.

Fig. 3 is an enlarged schematic view at a in fig. 2.

FIG. 4 is a schematic cross-sectional view of one embodiment of the present utility model.

Fig. 5 is a partial perspective view of an embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the easy-to-disassemble casing structure of the circuit breaker comprises a first casing 1 and a second casing 2 which are detachably connected, wherein the first casing comprises a first top plate 3, the second casing comprises a second top plate 4, the second top plate comprises a first surface 41 and a second surface 42 with different heights, the second surface is in contact with the bottom end surface of the first top plate, and a gap 411 exists between the first surface and the bottom end surface of the first top plate. The second face is supported and certain sealed effect is realized with the bottom terminal surface contact of first roof, and the clearance that the bottom terminal surface of second face and first roof exists is used for reducing the effect of friction, does benefit to better split circuit breaker casing, and first casing and second casing can be connected through the fastener, like screw or rivet etc..

In this embodiment, as shown in the drawing, the first surface is disposed inside the second surface. The inner side is an inner cavity which is relatively arranged in the shell after being installed, as shown in fig. 3, and the second surface is arranged on the outer side and is in contact with the bottom end surface of the first top plate, so that a better sealing effect is achieved.

In this embodiment, as shown in the drawing, the second top plate includes a main plate 40 and a first boss 43, the first surface is disposed on an upper end surface of the main plate, and the second surface is disposed on an upper end surface of the first boss. The whole structure is compact.

In this embodiment, as shown, the area of the first face is larger than the area of the second face. Further reducing the contact area and friction force.

In this embodiment, the first and second housings are connected by fasteners as shown. The fastener may be a screw or rivet, etc.

The first shell is internally provided with a first fixing seat 5, the second shell is internally provided with a second fixing seat 6, and the first fixing seat and the second fixing seat are respectively provided with a through hole 7 for installing a fastener. Strength is increased and breakage is prevented.

In this embodiment, as shown in the drawing, the second fixing base is provided with a second boss 61, and the first fixing base is provided with a guide groove 51 adapted to the second boss. Plays a certain role in installation and guiding, and is more beneficial to convenient assembly.

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. Just tear open shell structure of circuit breaker, including first casing (1) and second casing (2) that can dismantle the connection, its characterized in that: the first shell comprises a first top plate (3), the second shell comprises a second top plate (4), the second top plate comprises a first surface (41) and a second surface (42) which are different in height, the second surface is in contact with the bottom end face of the first top plate, and a gap (411) exists between the first surface and the bottom end face of the first top plate.

2. The circuit breaker easy-to-disassemble housing structure of claim 1, wherein: the first surface is arranged on the inner side of the second surface.

3. The circuit breaker easy-to-disassemble housing structure of claim 2, wherein: the second top plate comprises a main plate (40) and a first boss (43), wherein the first surface is arranged on the upper end face of the main plate, and the second surface is arranged on the upper end face of the first boss.

4. The circuit breaker easy-to-disassemble housing structure of claim 3, wherein: the first face has an area greater than an area of the second face.

5. The circuit breaker easy-to-disassemble housing structure of claim 1, wherein: the first housing and the second housing are connected by a fastener.

6. The circuit breaker easy-to-disassemble housing structure of claim 5, wherein: the first shell is internally provided with a first fixing seat (5), the second shell is internally provided with a second fixing seat (6), and the first fixing seat and the second fixing seat are both provided with through holes (7) for installing fasteners.

7. The circuit breaker easy-to-disassemble housing structure of claim 6, wherein: the second fixing seat is provided with a second boss (61), and the first fixing seat is provided with a guide groove (51) matched with the second boss.