Arc extinguishing chamber with enhanced insulativity
By increasing the creepage distance between the main contact on the arc extinguishing cover of the arc extinguishing chamber and adopting a specific material design, the problem of unqualified insulation of the arc extinguishing chamber after the electrical life test is solved, and better insulation and electrical life performance are achieved.
Patent Information
- Application Number
- CN202422148558.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-03
AI Technical Summary
After the electrical life test of the existing arc extinguishing chamber, the insulation between the main contacts was unqualified, resulting in product performance being affected.
An arc extinguishing chamber is designed to enhance insulation. By increasing the creepage distance between the main contacts on the arc extinguishing cover, a whole chamber is formed by using the main contacts of copper, a ceramic arc extinguishing cover and an alloy outer cover of alloy material.
It effectively solves the problem that the main contacts insulated to the outer cover after the electrical life test, enhances the insulation performance, and ensures the electrical life performance of the product.
Smart Images
Figure CN222980346U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an arc extinguishing chamber, in particular to an arc extinguishing chamber with enhanced insulation performance. Background Art
[0002] Due to the frequent problems of unqualified insulation between the main contacts and the main contact insulation after the electrical life test of a certain type of contactor, the final use of the product is seriously affected. After repeated analysis of the test pieces, there is wear on the metal surface after the main contact test, and some metal objects splash onto the surface of the arc extinguishing insulation parts and adhere to them, resulting in a path on the surface of the insulation parts, thus affecting the product performance and final use. Summary of the Utility Model
[0003] The problem to be solved by the utility model is to increase the creepage distance on the basis of the existing arc extinguishing insulation parts, thereby solving the technical problem of unqualified insulation between the main contact and the outer cover after the electrical life test of the product.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions:
[0005] An arc extinguishing chamber with enhanced insulation performance, including a main contact, an arc extinguishing cover, and an alloy outer cover; the arc extinguishing cover is welded to the top of the alloy outer cover, and the main contact is welded to the top of the arc extinguishing cover, making them connected into an integral chamber; the creepage distance between the arc extinguishing cover and the main contact is increased.
[0006] The main contact is made of copper.
[0007] The arc extinguishing cover is made of ceramic.
[0008] The alloy outer cover is made of alloy material.
[0009] The beneficial effects of adopting the above technical solutions are:
[0010] The utility model is simple to operate and easy to implement, and can effectively solve the problem of unqualified insulation between the main contact and the outer cover after the electrical life test of the product.
[0011] The components of the utility model have the characteristics of simple structure, easy processing, and easy assembly, etc. The creepage distance between the main contact and the alloy outer cover is increased, and the problem of unqualified insulation between the main contact and the arc extinguishing cover after the electrical life of the product is solved. Description of the Drawings
[0012] Figure 1 It is a schematic structural diagram of the existing arc extinguishing chamber.
[0013] Figure 2 It is a schematic structural diagram of the arc extinguishing chamber with enhanced insulation performance of the utility model.
[0014] In the figure: 1 - main contact, 2 - arc extinguishing cover, 3 - alloy outer cover.
[0015] Figure 3 is Figure 2 Schematic diagram of the main contact structure in
[0016] Figure 4 is Figure 3 Top view.
[0017] Figure 5 is Figure 2 Schematic diagram of the arc extinguishing cover structure in
[0018] Figure 6 is Figure 2 Schematic diagram of the alloy outer cover structure in
[0019] Figure 7 is Figure 6 Top view. Specific implementation manner
[0020] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0021] An arc extinguishing chamber with enhanced insulation includes a main contact 1, an arc extinguishing cover 2, and an alloy outer cover 3; the arc extinguishing cover 2 is welded to the top of the alloy outer cover 3, and the main contact 1 is welded to the top of the arc extinguishing cover 2, connecting them into an integral chamber. This has the advantages of simple structure, good versatility, simple assembly, and good insulation, and can achieve good arc extinguishing effect and insulation performance, ensuring the electrical life performance of the product; the creepage distance between the arc extinguishing cover 2 and the main contact 1 is increased, thus solving the problem of unqualified insulation of the main contact 1 to the arc extinguishing cover 2 after the electrical life of the product.
[0022] The main contact 1 is made of copper material, which has good electrical conductivity and can ensure the electrical performance of the product.
[0023] The arc extinguishing cover 2 is made of ceramic material, which has good strength and insulation performance, ensuring the structural strength, arc extinguishing effect and insulation effect of the product.
[0024] The alloy outer cover 3 is made of an alloy material with low density and high strength, and is integrally connected to the arc extinguishing cover by welding.
Claims
1. An arc extinguishing chamber with enhanced insulation, comprising a main contact (1), an arc extinguishing cover (2), and an alloy outer cover (3); characterized in that: An arc extinguishing hood (2) is welded on the top of the alloy outer cover (3), and a main contact (1) is welded on the top of the arc extinguishing hood (2), so that they are connected to form a whole chamber; the creepage distance between the arc extinguishing hood (2) and the main contact (1) is increased.
2. The arc extinguishing chamber with enhanced insulation according to claim 1, characterized in that: The main contacts (1) are made of copper.
3. The arc extinguishing chamber with enhanced insulation according to claim 1, characterized in that: The arc extinguishing hood (2) is made of ceramic.
4. The arc extinguishing chamber with enhanced insulation according to claim 1, characterized in that: The alloy outer cover (3) is made of alloy material.