Capacitor core

Abstract

The invention relates to a capacitor core. The capacitor core is formed by two or more flat elements in a stacked, wound and flattened manner; first metal electrodes are exposed from the upper planesof the elements; second metal electrodes are exposed from the lower end planes of the elements; and the exposed parts of the first metal electrodes and the exposed parts of the second metal electrodesbetween the adjacent two elements are in interconnection. Compared with the prior art, the capacitor core disclosed in the invention can simplify the structure, effectively reduce the parts and reduce process programs, and is simple and convenient to assemble and capable of improving production efficiency, lowering damage rate of the elements and lowering production cost; and the electrode contact surfaces between the adjacent elements are enlarged, so that electrical performance of a capacitor can be improved.

Description

technical field [0001] The present invention relates to the technical field of capacitors, in particular to a capacitor core. Background technique [0002] The core of the current bushing type power capacitor (such as coupling capacitor, capacitive voltage divider) is composed of several components connected in series. The component consists of the component body, two elongated metal sheets (hereinafter referred to as lead sheets) and insulating spacers. The element body is formed by winding an insulating medium (hereinafter referred to as medium) and two metal electrodes and then flattening; one end of the lead sheet is inserted into the element and placed on the two metal electrodes of the element respectively, and the other end extends out of the element. The two electrodes of the component are drawn out respectively; an insulating gasket is placed between the two metal electrodes to avoid short circuits between the two electrodes. The connection between adjacent elemen...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of this core are: 1. Additional lead pieces are required for the component, which increases the material cost

2. The requirements for the lead sheet are very high, so there are special process requirements when processing the lead sheet and placing the lead sheet, which increases the difficulty of the process and increases the production cost

3. When the lead sheet is inserted into the component, it may damage the internal electrodes

4. An insulating liner must be added inside the component to insulate the two lead pieces of the component, which also increases material costs, process procedures, etc.

5. Before the assembly of the core, the lead piece needs to be bent according to the requirements, which increases the operation process and also increases the chance of damaging the components

6. When the core is assembled, the electrical connection area between the components may be reduced due to the misalignment of the lead sheet, thereby affecting the electrical performance

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