CN211181982U

CN211181982U - Lead-out insertion piece and welded copper sheet integrated capacitor structure

Info

Publication number: CN211181982U
Application number: CN201922399126.1U
Authority: CN
Inventors: 俞广铨; 陈栋
Original assignee: Wuxi Chenrui New Energy Technology Co ltd
Current assignee: Wuxi Chenrui New Energy Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-04
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a capacitor structure technical field specifically is a draw inserted sheet and welding copper sheet integral type capacitor structure, and it can simplify production technology, promotes product quality stability and production efficiency, reduces the cost of labor, and it includes capacitor case, be provided with capacitor core and encapsulation material in the capacitor case, its characterized in that, be connected with the integral type on the capacitor core and draw the inserted sheet, the integral type draw inserted sheet one end expose in capacitor case is as leading-out electrode.

Description

Lead-out insertion piece and welded copper sheet integrated capacitor structure

Technical Field

The utility model relates to a capacitor structure technical field specifically is a draw-out inserted sheet and welding copper sheet integral type capacitor structure.

Background

The structure and the leading-out of the capacitor have various different modes, one of the power electronic capacitors is matched with an IGBT, the capacitor which is convenient for the installation of the IGBT with various hole distances is a common capacitor, and the capacitor is mainly a film capacitor which is led out of various tin-plated copper insertion sheets and is packaged by a plastic shell. The capacitor with the structure is designed according to the mode and the installation distance required by a common IGBT module, the installation is convenient, and a customer can select a proper standard substance capacitor according to the structure of the module.

However, such capacitors generally have a small volume, a low value, a large number of industry standards and a small profit margin, so that the improvement of product quality and production efficiency become the primary requirements at present.

Leading out the copper inserted sheet and positioning difficulty, must guarantee the positioning through customizing the frock or measuring with the slide caliper rule during the assembly, the production efficiency is low, and the quality can't be ensured, the foot distance is wrong, quality such as eight outside in the inserted sheet is unusual; (2) the connecting process of the copper inserting sheet and the core body is complex, two tinned copper wires or a red copper sheet are mainly welded on the inserting sheet, and then the two tinned copper wires or the red copper sheet are welded on the core body; (3) the embedment is carried out after copper inserted sheet and shell equipment are good, if the core is less, the core floats the core easily to appear, leads to risks such as inserted sheet skew.

In addition, the electrical performance of the capacitor is also urgently needed to be improved at present, and when the insert sheet is connected with the core body, the copper wire or the copper sheet is needed to be connected in the middle of the insert sheet, so that the loss and the ESR value of the capacitor are increased. The operation can be finished only manually at present, the production cost is increased, and the method is not suitable for the current mass modernized assembly line production mode.

Disclosure of Invention

In order to solve the problem that current capacitor structure production technology is loaded down with trivial details, inefficiency, the quality is unstable, and the cost of labor is high, the utility model provides a draw forth inserted sheet and welding copper sheet integral type capacitor structure, it can simplify production technology, promotes product quality stability and production efficiency, reduces the cost of labor.

The technical scheme is as follows: the utility model provides a draw inserted sheet and welding copper sheet integral type capacitor structure, its includes capacitor case, be provided with capacitor core and encapsulation material in the capacitor case, its characterized in that, be connected with the integral type on the capacitor core and draw the inserted sheet, the integral type draw inserted sheet one end expose in capacitor case is as drawing the electrode.

The capacitor is further characterized in that a limiting groove is formed in the inner wall of the capacitor shell;

the limiting groove is formed by two limiting lugs;

the inserted sheet is drawn forth to the integral type include with the riser that the capacitor case inner wall corresponds, riser one side be provided with the side connecting portion that the capacitor core body is connected, riser upper portion is provided with the diaphragm, the diaphragm bottom is provided with the locator card foot, the locator card foot with the riser form with capacitor case wall thickness complex draw-in groove.

Adopt the utility model discloses afterwards, combine old-fashioned inserted sheet and connecting copper line (or copper strips) inside traditional condenser as an organic whole and draw forth the inserted sheet, simplified production technology, reduce unnecessary frock cost and the cost of labor of unloading anchor clamps on, avoid because of the mass loss that manual operation or anchor clamps are bad brought, promoted product quality stability and production efficiency, reduceed the cost of labor.

Drawings

Fig. 1 is a schematic view of the capacitor structure of the present invention;

FIG. 2 is a schematic structural view of a capacitor case;

FIG. 3 is a schematic diagram of a single capacitor core connected to an integral lead-out tab;

fig. 4 is a schematic diagram of the connection of two capacitor cores and an integrated lead-out tab.

Detailed Description

Referring to fig. 1, 2, 3 and 4, the capacitor structure integrating the lead-out insert and the welded copper sheet comprises a capacitor shell 1, a capacitor core 2 and a potting material 4 are arranged in the capacitor shell 1, the capacitor core 2 is connected with an integrated lead-out insert 3, and one end of the integrated lead-out insert 3 is exposed out of the capacitor shell to serve as a lead-out electrode.

A limiting groove is arranged on the inner wall of the capacitor shell 1; the limiting groove is composed of two limiting lugs 5 and used for limiting the integral leading-out inserting piece 3.

The integrated lead-out insertion piece 3 comprises a vertical plate 3-1 corresponding to the inner wall of the capacitor shell 1, a side connecting portion 3-2 connected with the capacitor core body 2 is arranged on one side of the vertical plate 3-1, a transverse plate 3-3 is arranged on the upper portion of the vertical plate 3-1, a positioning clamping pin 3-4 is arranged at the bottom of the transverse plate 3-3, the positioning clamping pin 3-4 and the vertical plate 3-1 form a clamping groove matched with the wall thickness of the capacitor shell 1, it is guaranteed that the positioning clamping pin 3-4 is fixed with the capacitor shell 1 after assembly, abnormal size is prevented, size risks are avoided, and 3-5 can serve as an electrode in the.

The capacitor structure of the utility model does not need to be corrected and customized tools, reduces unnecessary tool cost and labor cost for loading and unloading the clamp, avoids mass loss caused by manual operation or bad clamp, greatly improves production efficiency and product quality, and the improved electrode can meet the production requirement of full-automatic welding and shorten the production period of products; in addition, the inner wall of the capacitor shell 1 is provided with the limiting groove, so that the defects caused by human factors can be effectively avoided during assembly, secondary verification can be performed on semi-finished products during assembly as a welded process, and the qualification rate of the products is greatly improved.

Claims

1. The utility model provides a draw inserted sheet and welding copper sheet integral type capacitor structure, its includes capacitor case, be provided with capacitor core and encapsulation material in the capacitor case, its characterized in that, be connected with the integral type on the capacitor core and draw the inserted sheet, the integral type draw inserted sheet one end expose in capacitor case is as drawing the electrode.

2. The structure of claim 1, wherein a limiting groove is formed in an inner wall of the capacitor shell.

3. The structure of claim 2, wherein the limiting groove is formed by two limiting protrusions.

4. The capacitor structure integrated with the lead-out insertion sheet and the welded copper sheet according to claim 1, wherein the integrated lead-out insertion sheet comprises a vertical plate corresponding to the inner wall of the capacitor shell, a side connecting portion connected with the capacitor core is arranged on one side of the vertical plate, a transverse plate is arranged on the upper portion of the vertical plate, a positioning clamping pin is arranged at the bottom of the transverse plate, and the positioning clamping pin and the vertical plate form a clamping groove matched with the wall thickness of the capacitor shell.