CN218447739U

CN218447739U - Plastic shell type circuit breaker and shell of circuit breaker

Info

Publication number: CN218447739U
Application number: CN202220770726.3U
Authority: CN
Inventors: 赵龙奔; 蒋忠丽; 陈旭龙; 胡玖畇
Original assignee: Welang Electric Co ltd
Current assignee: Willang Electric Group Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2023-02-03
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a shell of plastic casing circuit breaker and circuit breaker, comprises a box bod, the apron is installed to the box body upper end, apron upper end middle part is provided with divide-shut brake handle, apron upper end left part is provided with reset button, two through-holes that are bilateral symmetry are all opened at apron upper end front portion and rear portion, the through-hole lower extreme extends to terminal surface under the box body, three open slot has all been opened to apron front end and rear end, the open slot lower wall extends to the box body, the open slot lower wall is provided with the wiring end, two draw-in grooves have all been opened to apron front end and rear end, the draw-in groove lower wall extends to the box body. The utility model discloses a set up the installation that the flash barrier had been realized to fixed subassembly of card strip, hemisphere groove cooperation, and effectively improved the stability of flash barrier, under no exogenic action, the flash barrier is difficult for taking place to rock, phenomenon such as drop, and then improves the safety in utilization of plastic casing circuit breaker, simple structure, application scope is wide, and the practicality is strong.

Description

Plastic shell type circuit breaker and shell of circuit breaker

Technical Field

The utility model relates to a plastic casing formula circuit breaker technical field, in particular to plastic casing formula circuit breaker and shell of circuit breaker.

Background

A plastic case type circuit breaker is a plastic case type motor that can be used to turn on and off a load circuit, and also to control an infrequent start. The plastic case type circuit breaker must be installed with the flash barrier before operation. The arc-isolating plate has a plane section and an arc-isolating surface section, looks sideways at the similar English letter ' J ' shape, and the plane section of arc-isolating plate is fixed on the quiet arc angle, and the arc-isolating plate's arc-isolating surface section makes the upper surface of quiet arc angle subassembly form the bending of top backward in the below of quiet arc angle, draws the electric arc of arc-extinguishing chamber below to be blockked by the arc-isolating plate, gets back to the arc-extinguishing chamber along the arc-isolating plate in, can not rush out the arc-extinguishing chamber and burn out the magnetic blow coil.

Most are used for installing the flash barrier through setting up the draw-in groove in the shell of current plastic casing circuit breaker and circuit breaker, but the mounting structure stability of draw-in groove is relatively poor, and the flash barrier easily takes place to rock, the circumstances such as drop, has certain potential safety hazard, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a plastic casing formula circuit breaker and shell of circuit breaker can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a shell of plastic casing circuit breaker and circuit breaker, comprises a box bod, the apron is installed to the box body upper end, apron upper end middle part is provided with divide-shut brake handle, apron upper end left part is provided with reset button, two through-holes that are bilateral symmetry have all been opened at apron upper end front portion and rear portion, the through-hole lower extreme extends to terminal surface under the box body, three open slot has all been opened to apron front end and rear end, the open slot lower wall extends to the box body, the open slot lower wall is provided with the wiring end, two draw-in grooves have all been opened to apron front end and rear end, the draw-in groove lower wall extends to the box body, be provided with fixed subassembly in the draw-in groove, draw-in groove sliding connection has the flash barrier, flash barrier and fixed subassembly activity joint.

Preferably, the one end that the flash barrier is close to the box body is installed the card strip, the card strip is opened there is the hemisphere shape groove near the one end of fixed subassembly.

Preferably, one end, close to the fixed component, of the clamping groove is provided with a first circular groove, the other end of the first circular groove is provided with a second circular groove, and the other end of the second circular groove is provided with a third circular groove.

Preferably, fixed subassembly includes the hemisphere column cap, the hemisphere column cap is kept away from the one end of card strip and is installed spacing dish, the spring is installed to the spacing dish other end, the hemisphere column cap alternates swing joint with first circular slot, spacing dish alternates swing joint with the second circular slot, the spring other end and third circular slot bottom wall fixed connection.

Preferably, the diameter of the first circular groove is equal to the diameter of the third circular groove, and the diameter of the first circular groove is smaller than the diameter of the second circular groove.

Preferably, the height of the clamping strip is smaller than that of the arc isolating plate, the height of the clamping strip is equal to that of the clamping groove, and the hemispherical groove is matched with the hemispherical column head.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model relates to a plastic casing type circuit breaker and shell of circuit breaker has realized the installation of flash barrier through setting up card strip, hemisphere groove cooperation fixed subassembly, and effectively improve the stability of flash barrier, under no exogenic action, the flash barrier is difficult for taking place to rock, phenomenon such as drop, effectively improve the safety in utilization of plastic casing type circuit breaker, wherein, the card strip is installed on the flash barrier, when the card strip is located the draw-in groove completely, the hemisphere groove just flushes with the hemisphere column cap, make the hemisphere column cap press in the hemisphere groove through the spring action of spring, limit the card strip in the draw-in groove, easy operation is convenient, therefore, the clothes hanger is strong in practicability;

2. the utility model relates to a shell of plastic casing circuit breaker and circuit breaker has realized the installation of flash barrier through setting up fixed subassembly, and the fixed subassembly does not change the inner structure of plastic casing circuit breaker, is applicable to the plastic casing circuit breaker of most models promptly, does benefit to and uses widely.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a plastic case type circuit breaker and a case of the circuit breaker according to the present invention;

fig. 2 is a bottom view of the plastic case type circuit breaker and the overall structure of the case of the circuit breaker according to the present invention;

fig. 3 is a schematic cross-sectional structure diagram of a plastic case type circuit breaker and a case of the circuit breaker according to the present invention;

fig. 4 is a schematic diagram of the overall structure of a plastic case type circuit breaker and an arc barrier of a case of the circuit breaker according to the present invention;

fig. 5 is a schematic diagram of an overall structure of a plastic case type circuit breaker and a card slot of a case of the circuit breaker according to the present invention;

fig. 6 is a schematic diagram of the overall structure of the plastic case type circuit breaker and the fixing assembly of the case of the circuit breaker according to the present invention;

fig. 7 is the utility model discloses a plastic casing formula circuit breaker and fixed subassembly's of shell of circuit breaker result of use picture.

In the figure: 1. a cover plate; 2. a switching-on and switching-off handle; 3. a reset button; 4. a box body; 5. a through hole; 6. an open slot; 7. a terminal; 8. a card slot; 9. an arc barrier; 10. a fixing assembly; 21. clamping the strip; 22. a hemispherical groove; 31. a first circular groove; 32. a second circular groove; 33. a third circular groove; 41. a hemispherical column head; 42. A limiting disc; 43. a spring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

As shown in fig. 1-7, a plastic casing type circuit breaker and a casing of the circuit breaker, the plastic casing type circuit breaker comprises a box body 4, an apron 1 is installed at the upper end of the box body 4, an opening and closing handle 2 is arranged in the middle of the upper end of the apron 1, a reset button 3 is arranged at the left part of the upper end of the apron 1, two through holes 5 which are in bilateral symmetry are formed in the front part and the rear part of the upper end of the apron 1, the lower ends of the through holes 5 extend to the lower end face of the box body 4, three open slots 6 are formed in the front end and the rear end of the apron 1, the lower wall of each open slot 6 extends to the box body 4, a wiring end 7 is arranged on the lower wall of each open slot 6, two clamping grooves 8 are formed in the front end and the rear end of the apron 1, the lower wall of each clamping groove 8 extends to the box body 4, a fixing component 10 is arranged in each clamping groove 8, each clamping groove 8 is slidably connected with an arc partition plate 9, and the arc partition plates 9 are movably clamped with the fixing components 10.

The end of the flash barrier 9 close to the box body 4 is provided with a clamping strip 21, the end of the clamping strip 21 close to the fixing component 10 is provided with a hemispherical groove 22, and the hemispherical groove 22 is designed to facilitate the falling and entering of the hemispherical column head 41.

One end of the clamping groove 8, which is close to the fixing component 10, is provided with a first circular groove 31, the other end of the first circular groove 31 is provided with a second circular groove 32, the other end of the second circular groove 32 is provided with a third circular groove 33, the third circular groove 33 is used for installing a spring 43 and preventing the spring 43 from being damaged due to excessive extrusion, and the second circular groove 32 is designed to limit the stroke of the hemispherical column head 41, so that the part of the hemispherical column head 41, which protrudes out of the first circular groove 31, is just matched with the hemispherical groove 22.

The fixing assembly 10 comprises a hemispherical column head 41, a limiting disc 42 is installed at one end, away from the clamping strip 21, of the hemispherical column head 41, a spring 43 is installed at the other end of the limiting disc 42, the hemispherical column head 41 is movably connected with the first circular groove 31 in a penetrating mode, the limiting disc 42 is movably connected with the second circular groove 32 in a penetrating mode, the other end of the spring 43 is fixedly connected with the bottom wall of the third circular groove 33, and the spring 43 is always in a compressed state.

The diameter of the first circular groove 31 is equal to the diameter of the third circular groove 33, and the diameter of the first circular groove 31 is smaller than the diameter of the second circular groove 32.

The height that highly is less than flash barrier 9 of card strip 21, the height that highly equals draw-in groove 8 of card strip 21, and hemisphere groove 22 and hemisphere column cap 41 phase-matches, draw-in groove 8 are not the through design promptly, and draw-in groove 8 has the diapire, and fixed subassembly 10 of cooperation further improves flash barrier 9's stability, holds in the palm the end through draw-in groove 8, avoids flash barrier 9 to break away from fixed subassembly 10 because self gravity.

It should be noted that, the utility model relates to a plastic casing type circuit breaker and shell of the circuit breaker, when installing the flash barrier 9, only need to aim at the card strip 21 to the card slot 8, then press hard, make the lower end of the card strip 21 closely contact with the lower wall of the card slot 8, at this moment, push the hemispherical column cap 41 into the hemispherical groove 22 through the spring action of the spring 43, namely finish the installation of the flash barrier 9; the arc isolating plate 9 is installed by arranging the clamping strip 21 and the hemispherical groove 22 to be matched with the fixing component 10, the stability of the arc isolating plate 9 is effectively improved, the arc isolating plate 9 is not prone to shaking, falling and the like under the action of no external force, the use safety of the plastic shell type circuit breaker is effectively improved, the clamping strip 21 is installed on the arc isolating plate 9, when the clamping strip 21 is completely located in the clamping groove 8, the hemispherical groove 22 is just flush with the hemispherical column head 41, the hemispherical column head 41 is pressed in the hemispherical groove 22 through the elastic force of the spring 43, the clamping strip 21 is limited in the clamping groove 8, the operation is simple and convenient, and the practicability is high; the installation of flash barrier 9 has been realized through setting up fixed subassembly 10, and fixed subassembly 10 does not change the inner structure of plastic shell type circuit breaker, is applicable to the plastic shell type circuit breaker of most models promptly, does benefit to and uses widely.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a shell of plastic casing formula circuit breaker and circuit breaker, includes box body (4), its characterized in that: the utility model discloses a novel switch box, including box body (4), apron (1) upper end middle part is provided with divide-shut brake handle (2), apron (1) upper end left part is provided with reset button (3), apron (1) upper end front portion and rear portion have all opened two through-hole (5) that are bilateral symmetry, terminal surface under through-hole (5) lower extreme extends to box body (4), three open slot (6) have all been opened to apron (1) front end and rear end, open slot (6) lower wall extends to box body (4), open slot (6) lower wall is provided with wiring end (7), apron (1) front end and rear end have all opened two draw-in grooves (8), draw-in groove (8) lower wall extends to box body (4), be provided with fixed subassembly (10) in draw-in groove (8), draw-in groove (8) sliding connection has flash barrier (9), flash barrier (9) and fixed subassembly (10) activity joint.

2. The plastic case type circuit breaker and case of the circuit breaker as claimed in claim 1, wherein: one end of the flash barrier (9) close to the box body (4) is provided with a clamping strip (21), and one end of the clamping strip (21) close to the fixing component (10) is provided with a hemispherical groove (22).

3. The plastic case type circuit breaker and case of the circuit breaker as claimed in claim 2, wherein: one end of the clamping groove (8) close to the fixing component (10) is provided with a first circular groove (31), the other end of the first circular groove (31) is provided with a second circular groove (32), and the other end of the second circular groove (32) is provided with a third circular groove (33).

4. A plastic cased circuit breaker and casing for a circuit breaker as claimed in claim 3, wherein: fixed subassembly (10) include hemisphere column cap (41), hemisphere column cap (41) are kept away from the one end of card strip (21) and are installed spacing dish (42), spring (43) are installed to spacing dish (42) other end, hemisphere column cap (41) and first circular slot (31) alternate swing joint, spacing dish (42) and second circular slot (32) alternate swing joint, spring (43) other end and third circular slot (33) diapire fixed connection.

5. The circuit breaker as claimed in claim 4, wherein the circuit breaker further comprises: the diameter of the first circular groove (31) is equal to that of the third circular groove (33), and the diameter of the first circular groove (31) is smaller than that of the second circular groove (32).

6. The circuit breaker as claimed in claim 5, wherein the circuit breaker further comprises: the height of the clamping strip (21) is smaller than that of the flash barrier (9), the height of the clamping strip (21) is equal to that of the clamping groove (8), and the hemispherical groove (22) is matched with the hemispherical column head (41).