Copper-aluminum composite low-sensitive busbar and manufacturing method thereof

Abstract

The invention discloses a copper-aluminum composite low-sensitive busbar. The copper-aluminum composite low-sensitive busbar comprises a plurality of conductor layers, and a plurality of insulating layers, wherein the conductor layers are made of copper-aluminum composite boards; each insulating layer is arranged on an upper surface and / or lower surface of the conductor layer through a bonding layer in a fitting layer, so that the conductor layers are mutually insulated and the conductor layers are insulated from the external; through holes are formed on corresponding locations of the conductor layers and the insulating layers; the through holes are used for arranging guide pillars penetrating the conductor layers and the insulating layers; the conductor layers and the external circuit canform the conductive channel through the guide pillars; the manufacturing method of the copper-aluminum composite low-sensitive busbar comprises the following steps: copper-aluminum composite board processing, the guide pillar fixing, the surface electroplating, laminating and molding. The copper-aluminum composite low-sensitive busbar disclosed by the invention is good in corrosion resistance, light in weight, and good in conductivity, the problems that the existing aluminum busbar is bad in conductivity and the existing pure-copper busbar is high in cost and large in weight are solved.

Description

technical field [0001] The invention relates to the technical field of electronic power, in particular to a copper-aluminum composite low-sensitivity busbar and a manufacturing method thereof. Background technique [0002] Low-sensitivity busbars, also known as composite busbars, are used as buses for integrating various devices in larger power electronic circuits. Because they are often used in high-current and high-voltage electrical connections, copper plates with better electrical conductivity and mechanical properties are commonly used. as conductor material. [0003] Copper has been listed as a rare metal in my country, and it is a strategic resource second only to petroleum. With the priority support of the National Development and Reform Commission, the Ministry of Science and Technology and other ministries and commissions for copper-aluminum composite materials, the development speed of copper-aluminum composite materials has been significantly accelerated in recen...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a copper-aluminum composite low-inductance busbar that can solve the problems of poor electrical conductivity of the existing aluminum busbar and the high cost and heavy weight of the existing pure copper busbar

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