Capacitor cover plate structure and cold forging welding process thereof

Abstract

The invention relates to a capacitor cover plate structure and a cold forging welding process thereof. A capacitor cover plate is provided with two terminals. Holes are formed in the side surfaces of the terminals; a chaff is matched with the hole in the side face of the terminal, and the chaff is inserted into the hole in the side face of the terminal and connected with the terminal. The cold forging welding process is used for connecting a foil guide strip and a terminal, and the terminal is an aluminum product; the process comprises the following steps of (1) cold forging: clamping a terminal and contacting a chaff through cold forging, and (2) welding: connecting the chaff and the terminal through welding, so that the terminal and the chaff are firmly connected, the electrical performance is stable, and automatic production is convenient to realize.

Description

Technical Field

[0001] This invention relates to capacitor technology, specifically to a capacitor cover structure and its cold forging and welding process. Background Technology

[0002] Traditionally, the connection between the terminals (on the capacitor cover) and the conductive foil strip is achieved by directly placing the conductive foil strip on the terminals and connecting them by spot welding. This method results in a weak connection and unstable electrical performance. Summary of the Invention

[0003] To address the aforementioned issues, this invention proposes a capacitor cover structure and its cold forging and welding process, which ensures a firm connection between the terminals and the conductive foil strip, stable electrical performance, and facilitates automated production.

[0004] The technical solution of this invention: A capacitor cover structure, wherein the capacitor cover has two terminals; the terminals have openings on their sides; A guide foil strip is matched with a hole on the side of the terminal. The guide foil strip is inserted into the hole on the side of the terminal and connected to the terminal.

[0005] The hole on the side of the terminal is a rectangular hole.

[0006] A cold forging welding process is disclosed in which the conductive foil strip and the terminal of the aforementioned capacitor cover plate structure are connected by a cold forging welding process (the terminal is an aluminum product); characterized in that the process includes the following steps: 1) Cold forging: Cold forging clamps the terminals and brings the foil strips into contact. 2) Welding: Connect the conductor foil strip to the terminal by welding.

[0007] After cold forging, the terminal comes into contact with the guide foil strip surface.

[0008] Before cold forging, ensure that the end of the guide foil is flush with the side of the terminal. During welding, fully weld the side of the terminal.

[0009] The advantages of this invention are that it is reasonably designed and ingeniously conceived. A hole is made on the side of the terminal and a guide foil strip is inserted into it. With the help of cold forging and welding process, the terminal is first clamped and the guide foil strip is brought into contact through cold forging. Then, the guide foil strip and the terminal are connected by welding. The connection between the terminal and the guide foil strip is firm and the electrical performance is stable. The steps of connecting the terminal and the guide foil strip (inserting the guide foil strip, cold forging, welding) are relatively simple and easy to automate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the capacitor cover structure (the terminals and the conductive foil are connected by a cold forging and welding process).

[0011] Figure 2 This is a schematic diagram of the cold forging and welding process.

[0012] Terminal 1 and guide foil strip 2 are shown in the diagram. Detailed Implementation

[0013] like Figure 1-2 The capacitor cover structure has two terminals 1; the terminals 1 have openings on their sides; a guide foil 2 matches the openings on the sides of the terminals 1, and the guide foil 2 is inserted into the openings on the sides of the terminals 1 and connected to the terminals 1; the openings on the sides of the terminals 1 are rectangular openings.

[0014] The capacitor cover structure is wherein the conductive foil strip 2 and the terminal 1 are connected by a cold forging welding process (the terminal 1 is an aluminum product); the process includes the following steps: 1) Cold forging: The terminal 1 is clamped and the foil strip 2 is brought into contact through cold forging; 2) Welding: Connect the guide foil strip 2 to the terminal 1 by welding; After cold forging, terminal 1 comes into contact with the surface of the guide foil 2; Before cold forging, ensure that the end of the guide foil strip 2 is flush with the side of terminal 1. During welding, fully weld the side of terminal 1.

[0015] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A capacitor cover structure, wherein the capacitor cover has two terminals; characterized in that, The terminal has an opening on its side; A guide foil strip is matched with a hole on the side of the terminal. The guide foil strip is inserted into the hole on the side of the terminal and connected to the terminal.

2. The capacitor cover structure according to claim 1, characterized in that, The hole on the side of the terminal is a rectangular hole.

3. A cold forging and welding process, wherein the capacitor cover structure according to any one of claims 1-2 is connected to the terminals by a cold forging and welding process; characterized in that, The process includes the following steps: 1) Cold forging: Cold forging clamps the terminals and brings the foil strips into contact. 2) Welding: Connect the conductor foil strip to the terminal by welding.

4. The cold forging and welding process according to claim 3, characterized in that, After cold forging, the terminal comes into contact with the guide foil strip surface.

5. The cold forging and welding process according to claim 3, characterized in that, Before cold forging, ensure that the end of the guide foil is flush with the side of the terminal. During welding, fully weld the side of the terminal.

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