CN2556765Y

CN2556765Y - Capacitor

Info

Publication number: CN2556765Y
Application number: CN 02220941
Authority: CN
Inventors: 宋仁祥; 张敏; 毛俊辉
Original assignee: Anhui Feida Industry Co Ltd
Current assignee: Anhui Feida Industry Co Ltd
Priority date: 2002-05-30
Filing date: 2002-05-30
Publication date: 2003-06-18
Anticipated expiration: 2012-05-30

Abstract

A capacitor consists of a shell body, a core body and a shell cover, wherein, one end of the capacitor is electrically connected with the core body while the other end goes through the shell cover with a rivet which is electrically connected with an extracting terminal; a cardboard, a rubber seal ring and an insulator are sleeved on the external part of the rivet in sequence from the upper to the lower. The capacitor is characterized in that the rivet and the extracting terminal are in spot welding. To increase the welding intensity, the way of spot contact is formed between the top part of the rivet at the connecting position and the extracting terminal. The utility model can make direct spot welding for the rivet and the extracting terminal by adopting an energy storage spot welding machine and has the advantages of high intensity of spot welding, good stability and at the same time reducing the electricity consumption in normal running of the capacitor.

Description

Capacitor

Technical field:

The utility model relates to electronic devices and components.The capacitor of more specifically saying so.

Background technology:

In the prior art, in the capacitor that is made of housing, core body and cap, on the one hand as connector, rivet and the connected mode between bringing-out as electric conductor is riveted joint on the other hand.Be about to the rivet top and run through the leading-out terminal bottom, and riveted joint mutually.The problem that this connected mode exists is that not only fastness is poor, easily gets loose, and because the contact resistance resistance is bigger, causes condenser loss to increase.

Summary of the invention:

Technical problem to be solved in the utility model is to avoid above-mentioned weak point of the prior art, improve a kind of sound construction, loss little, make simple capacitor.

The technical scheme that the utility model technical solution problem is adopted is:

The utility model is made of housing, core body and cap.Wherein, an end is electrically connected the rivet that the other end is electrically connected with leading-out terminal and runs through cap, the sheathed successively cardboard in rivet outside, rubber seal and insulator from bottom to top with core body.

Design feature of the present utility model is that described rivet is that spot welding is connected with leading-out terminal.

Design feature of the present utility model also is to be between the top of rivet of connecting portion and the leading-out terminal and is formed with the some contact form that is beneficial to spot welding.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

The utility model can adopt reserve energy spot welding machine that rivet and leading-out terminal are directly carried out spot welding to be connected, by form point contact form between the top of the rivet that is in connecting portion and leading-out terminal, make that the spot welding contact area is little, current density is high, the heat height of spot welding discharge generation, so more increased spot welding intensity, stability improves greatly, the electrical loss when also having reduced the capacitor operate as normal simultaneously.The utility model is simple in structure, easy to implement.

The drawing explanation:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model leading-out terminal and rivet fit structure schematic diagram.

Embodiment:

Referring to Fig. 1, present embodiment is made of housing 1, core body 2 and cap 3.

Wherein, an end is electrically connected the rivet 5 that the other end is electrically connected with leading-out terminal 4 and runs through cap 3, the sheathed successively cardboard 6 in the outside of rivet 5, rubber seal 7 and insulator 8 from bottom to top with core body 2.Be connected for spot welding between rivet 5 and the leading-out terminal 4.

Referring to Fig. 2, in order to improve the electric welding current density, increase weld strength, form between the top that should make the rivet 5 that is in connecting portion and the leading-out terminal 4 and put a contact form.Specifically be tapered protrusion 9 to be set, contact with the top point of rivet 5 with its protruding vertex of a cone in leading-out terminal 4 bottoms of contact site.For the top of the vertex of a cone that guarantees tapered protrusion 9 and rivet 5 for just contacting, the end circular diameter of tapered protrusion 9 and the through hole internal diameter that is opened on the insulator 8 are matched.

Claims

1, capacitor, constitute by housing (1), core body (2) and cap (3), one end is electrically connected the rivet (5) that the other end is electrically connected with leading-out terminal (4) and runs through cap (3) with core body (2), the sheathed successively from bottom to top cardboard in rivet outside (6), rubber seal (7) and insulator (8) is characterized in that described rivet (5) is connected for spot welding with leading-out terminal (4).

2, capacitor according to claim 1 is characterized in that being between the top of rivet (5) of connecting portion and the leading-out terminal (4) and is formed with the some contact form that is beneficial to spot welding.

3, capacitor according to claim 2 is characterized in that the contact of described formation point is that leading-out terminal (4) bottom in the contact site is provided with tapered protrusion (9), contacts with the top point of its protruding vertex of a cone with rivet (5).

4, capacitor according to claim 3 is characterized in that the tapered protrusion (9) of described leading-out terminal bottom, and its end circular diameter matches with the through hole internal diameter that is opened on the insulator (8).