Laminated bus bar with electromagnetic shielding function and manufacturing process thereof

Abstract

The invention discloses a laminated bus bar with electromagnetic interference resistance. The laminated bus bar comprises at least one layer of copper plate and a double-layer glue-containing insulating film which covers the periphery of the copper plate through the thermal fusion process. An aluminum foil with electromagnetic interference resistance coats the periphery of the conductive copper plate through the double-layer glue-containing insulating film, a single-side glue-containing insulating film covers the outer side of the aluminum foil with electromagnetic interference resistance, an electromagnetic interference resistance function is formed at the outer layer of the conductive copper plate and the inner layer of the surface insulating film through the thermal fusion process, and the insulating film, the aluminum foil, and the copper plate are orderly stacked and are placed in a fixed clamp and then are placed into a hot press process machine to be subjected to pressurizing and heating, heat preservation, cooling and stacking according to a process curve graph. The laminated bus bar with an electromagnetic shielding function has aluminum foil shielding inside, a PET insulation film is outside for insulation, good heat radiation and safe and a reliable energization effect can be obtained, and the size and weight of the bus bar are reduced at the same time.

Description

technical field [0001] The invention relates to the field of power supply and distribution equipment, in particular to a laminated bus bar with electromagnetic shielding function, and to its manufacturing process. Background technique [0002] At present, in the distribution of high-voltage power supply of new energy pure electric vehicles, cables are used to distribute the electricity transmitted from the power supply to the units required for power consumption; for the connection of battery packs of new energy pure electric vehicles, bare copper bars are used for distribution. Electricity; In the DC to AC or AC to DC inverter units of wind power generation, solar power storage systems and other industries, use bare copper bars or add epoxy resin boards between copper bars for insulation or use laminated busbars The busbars are used for power distribution and epoxy resin boards are installed vertically to ensure reliability; recently, there is a process of pasting epoxy res...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of traditional laminated busbars that do not have electromagnetic shielding and poor safety, the present invention provides a traditional busbar that is similar to a large-current circuit board and has the advantages of easy installation and small volume. The laminated busbar with the characteristics of small size, good heat dissipation, and small inductance, etc., its manufacturing process adopts the aluminum foil of the electromagnetic shielding layer to cover the outer surface of at least one layer of copper plate, and the aluminum foil with anti-electromagnetic radiation ability through the thermal fusion process A layer of insulating film is superimposed on the outside, stacked together and installed in a fixed fixture, placed in a heat fusion press according to the process curve diagram, pressurized, heated, kept warm, finally cooled, and stacked together

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