Intelligent circuit breaker arc extinguishing device

Abstract

The utility model relates to the technical field of arc extinguishing of intelligent circuit breakers, and discloses an arc extinguishing device of an intelligent circuit breaker, which comprises an arc isolating wall body, an arc extinguishing grid sheet is arranged on the surface of the arc isolating wall body, an installation mechanism is arranged on the surface of the arc extinguishing grid sheet, a limiting mechanism is arranged at the inner bottom of the arc isolating wall body, and the installation mechanism comprises a placing groove. And the placing grooves are formed in the surface of the arc-isolating wall body. According to the arc extinguishing device of the intelligent circuit breaker, through the arrangement of the mounting mechanism and the arc extinguishing grid pieces convenient to mount and dismount, when the arc extinguishing grid pieces deform after being used for a long time, the arc extinguishing grid pieces can be dismounted and replaced in time, and it is ensured that the arc extinguishing grid pieces can play the role of themselves; the arc chute is placed in the placement groove formed in the surface of the arc-isolating wall body, at the moment, the placement plate can be inserted into the groove formed in the mounting plate, the arc chute can be preliminarily limited, and subsequent mounting is facilitated.

Description

A smart circuit breaker arc extinguishing device Technical Field

[0001] This utility model relates to the field of arc extinguishing technology for intelligent circuit breakers, specifically to an arc extinguishing device for intelligent circuit breakers. Background Technology

[0002] Intelligent circuit breakers typically employ a combination of various arc-extinguishing methods to achieve efficient arc extinguishing. For example, they utilize the stretching, cooling, and segmentation of the electric arc within the arc-extinguishing chamber to cause ion recombination within the arc, thereby rapidly extinguishing the arc.

[0003] Patent announcement number CN 211238140 U discloses an arc-extinguishing grid for a circuit breaker, belonging to the field of circuit breaker technology. It includes a long arc-extinguishing grid piece and a short arc-extinguishing grid piece, which are arranged at intervals and stacked. The length of the long arc-extinguishing grid piece is greater than the length of the short arc-extinguishing grid piece. Both the long and short arc-extinguishing grid pieces have arc-extinguishing grooves formed longitudinally, and the arc-extinguishing grooves are open slots.

[0004] The applicant believes that the circuit breaker uses an arc-extinguishing grid, and the arc-extinguishing grid plates on its surface are not easy to disassemble. This makes it difficult to disassemble and replace the arc-extinguishing grid plates when they deform after long-term use, thus reducing the effectiveness of the arc-extinguishing grid plates. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent circuit breaker arc extinguishing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent circuit breaker arc extinguishing device, comprising an arc-isolating wall body, an arc-extinguishing grid plate disposed on the surface of the arc-extinguishing wall body, an installation mechanism disposed on the surface of the arc-extinguishing grid plate, and a limit mechanism disposed at the bottom of the inner body of the arc-isolating wall body.

[0007] The installation mechanism includes placement slots, all of which are formed on the surface of the arc-extinguishing wall. The arc-extinguishing grid plate is inserted into the placement slot. Connecting frames are fixedly connected to both sides of the arc-extinguishing grid plate. A vertical plate is fixedly connected to the middle of the surface of the connecting frame. A limiting slot is formed in the vertical plate. A limiting plate is inserted into the limiting slot. A fixing plate is fixedly connected to the bottom of the limiting plate. The fixing plate is fixedly connected to the surface of the arc-extinguishing wall.

[0008] Preferably, two limiting plates are provided, and both limiting plates are provided on both sides of the arc-extinguishing wall. The position of the arc-extinguishing grid plate can be restricted by the limiting plates.

[0009] Preferably, the surface of the arc-isolating wall is provided with a rectangular groove, and a fixing block is inserted into the rectangular groove. The fixing blocks are all fixedly connected to both sides of the connecting frame. The fixing blocks can achieve the fixing effect of the fixing bolts.

[0010] Preferably, a connecting plate is fixedly connected to the surface of the arc-extinguishing wall. Threaded holes are provided on both the surface of the connecting plate and the surface of the fixing block. Fixing bolts are threaded into the threaded holes. By connecting the fixing bolts to the overlapping threaded holes between the connecting plate and the fixing block, the arc-extinguishing grid can be positioned, thereby enabling the installation of the arc-extinguishing grid.

[0011] Preferably, the limiting mechanism includes a mounting plate, which is fixedly connected to the surface of the arc-extinguishing grid plate. A groove is provided in the mounting plate, and a placement plate is inserted into the groove. The placement plate is fixedly connected to the bottom of the arc-isolating wall body. The placement plate can be inserted into the groove provided in the mounting plate, which can initially limit the arc-extinguishing grid plate and facilitate subsequent installation.

[0012] Preferably, each of the arc-extinguishing wall bodies has a horizontal plate fixedly connected to its bottom, and the horizontal plate is intermittently arranged on the surface of the arc-extinguishing grid.

[0013] Compared with the prior art, this utility model provides an intelligent circuit breaker arc extinguishing device, which has the following beneficial effects:

[0014] 1. The intelligent circuit breaker arc extinguishing device, through its installation mechanism and the arc extinguishing grid plate which is easy to install and disassemble, can be promptly disassembled and replaced when the arc extinguishing grid plate deforms after long-term use, thus ensuring that the arc extinguishing grid plate can play its role.

[0015] 2. The intelligent circuit breaker arc extinguishing device, through the setting limiting mechanism, places the arc extinguishing grid plate into the placement groove opened on the surface of the arc isolation wall. At this time, the placement plate can be inserted into the groove opened inside the mounting plate, which can initially limit the arc extinguishing grid plate and facilitate subsequent installation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a schematic diagram of the installation mechanism of this utility model;

[0019] Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 2;

[0020] Figure 4 is a schematic diagram of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Arc-isolating wall; 2. Installation mechanism; 21. Fixing plate; 22. Vertical plate; 23. Connecting frame; 24. Limiting plate; 25. Connecting plate; 26. Fixing block; 3. Limiting mechanism; 31. Mounting plate; 32. Placement plate; 33. Horizontal plate; 4. Arc-extinguishing grid plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution:

[0024] Example 1:

[0025] Referring to Figures 1 to 2-3, an arc extinguishing device for an intelligent circuit breaker includes an arc-isolating wall 1, an arc-extinguishing grid 4 is provided on the surface of the arc-isolating wall 1, an installation mechanism 2 is provided on the surface of the arc-extinguishing grid 4, and a limit mechanism 3 is provided at the bottom of the arc-isolating wall 1.

[0026] The installation mechanism 2 includes a placement groove, which is opened on the surface of the arc-isolating wall 1. The arc-extinguishing grid plate 4 is inserted into the placement groove. A connecting frame 23 is fixedly connected to both sides of the arc-extinguishing grid plate 4. A vertical plate 22 is fixedly connected to the middle of the surface of the connecting frame 23. A limiting groove is opened in the vertical plate 22. A limiting plate 24 is inserted into the limiting groove. A fixing plate 21 is fixedly connected to the bottom of the limiting plate 24. The fixing plate 21 is fixedly connected to the surface of the arc-isolating wall 1.

[0027] Furthermore, two limiting plates 24 are provided, both of which are provided on both sides of the arc-isolating wall 1. The position of the arc-extinguishing grid plate 4 can be restricted by the limiting plates 24.

[0028] Furthermore, a rectangular groove is provided on the surface of the arc-isolating wall 1, and a fixing block 26 is inserted into the rectangular groove. The fixing blocks 26 are all fixedly connected to both sides of the connecting frame 23. The fixing blocks 26 can be used to fix the bolts.

[0029] Furthermore, a connecting plate 25 is fixedly connected to the surface of the arc-isolating wall 1. Threaded holes are provided on both the surface of the connecting plate 25 and the surface of the fixing block 26. Fixing bolts are threaded into the threaded holes. By connecting the fixing bolts to the overlapping threaded holes between the connecting plate 25 and the fixing block 26, the arc-extinguishing grid plate 4 can be positioned, thereby realizing the installation of the arc-extinguishing grid plate 4. By setting the arc-extinguishing grid plate 4 for easy installation and disassembly, when the arc-extinguishing grid plate 4 deforms after long-term use, it can be disassembled and replaced in time, ensuring that the arc-extinguishing grid plate 4 can play its role.

[0030] Example 2:

[0031] Referring to Figure 4, and based on Embodiment 1, the limiting mechanism 3 further includes a mounting plate 31, which is fixedly connected to the surface of the arc-extinguishing grid plate 4. A groove is provided in the mounting plate 31, and a placement plate 32 is inserted into the groove. The placement plate 32 is fixedly connected to the bottom of the arc-isolating wall 1. The placement plate 32 can be inserted into the groove provided in the mounting plate 31, which can initially limit the arc-extinguishing grid plate 4 and facilitate subsequent installation.

[0032] Furthermore, each of the inner bottom of the arc-isolating wall 1 is fixedly connected with a horizontal plate 33. The horizontal plate 33 is intermittently arranged on the surface of the arc-extinguishing grid plate 4. By placing the arc-extinguishing grid plate 4 into the placement groove opened on the surface of the arc-isolating wall 1, the placement plate 32 can be inserted into the groove opened inside the mounting plate 31, which can initially limit the arc-extinguishing grid plate 4 and facilitate subsequent installation.

[0033] In actual operation, when this device is used, the arc-extinguishing grid plate 4 is first placed into the placement groove on the surface of the arc-isolating wall 1. At this time, the placement plate 32 can be inserted into the groove inside the mounting plate 31, which can initially limit the arc-extinguishing grid plate 4, facilitating subsequent installation. At the same time, the limiting plate 24 is inserted into the limiting groove inside the vertical plate 22, and the fixing block 26 is located between the connecting plates 25 on both sides. Then, by threading the fixing bolts into the threaded holes that overlap between the connecting plate 25 and the fixing block 26, the arc-extinguishing grid plate 4 can be positioned, thereby realizing the installation of the arc-extinguishing grid plate 4. Based on the above principle, the arc-extinguishing grid plate 4 can be disassembled by repeating the reverse steps. By setting the arc-extinguishing grid plate 4 to facilitate installation and disassembly, when the arc-extinguishing grid plate 4 deforms after long-term use, it can be disassembled and replaced in time, ensuring that the arc-extinguishing grid plate 4 can play its role.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An arc-extinguishing device for an intelligent circuit breaker, comprising an arc-isolating wall (1), characterized in that: The surface of the arc-extinguishing wall (1) is provided with an arc-extinguishing grid plate (4), the surface of the arc-extinguishing grid plate (4) is provided with an installation mechanism (2), and the bottom of the arc-extinguishing wall (1) is provided with a limiting mechanism (3); the installation mechanism (2) includes a placement groove, the placement groove is opened on the surface of the arc-extinguishing wall (1), the arc-extinguishing grid plate (4) is inserted into the placement groove, the two sides of the arc-extinguishing grid plate (4) are fixedly connected with a connecting frame (23), the middle of the surface of the connecting frame (23) is fixedly connected with a vertical plate (22), the vertical plate (22) is opened with a limiting groove, the limiting groove is inserted with a limiting plate (24), the bottom of the limiting plate (24) is fixedly connected with a fixing plate (21), and the fixing plate (21) is fixedly connected to the surface of the arc-extinguishing wall (1).

2. The intelligent circuit breaker arc extinguishing device according to claim 1, characterized in that: The number of limiting plates (24) is two, and both limiting plates (24) are set on both sides of the arc-blocking wall (1).

3. The intelligent circuit breaker arc extinguishing device according to claim 1, characterized in that: The surface of the arc-blocking wall (1) is provided with a rectangular groove, and a fixing block (26) is inserted into the rectangular groove. The fixing blocks (26) are all fixedly connected to both sides of the connecting frame (23).

4. The intelligent circuit breaker arc extinguishing device according to claim 3, characterized in that: A connecting plate (25) is fixedly connected to the surface of the arc-isolating wall (1). Threaded holes are provided on the surface of the connecting plate (25) and the surface of the fixing block (26). A fixing bolt is threaded into the threaded hole.

5. The intelligent circuit breaker arc extinguishing device according to claim 1, characterized in that: The limiting mechanism (3) includes a mounting plate (31), which is fixedly connected to the surface of the arc extinguishing grid plate (4). A groove is provided in the mounting plate (31), and a placement plate (32) is inserted into the groove. The placement plate (32) is fixedly connected to the bottom of the arc extinguishing wall (1).

6. The intelligent circuit breaker arc extinguishing device according to claim 1, characterized in that: The bottom of each arc-blocking wall (1) is fixedly connected with a horizontal plate (33), which is intermittently arranged on the surface of the arc-extinguishing grid plate (4).

Images