High-voltage power electronic device arrangement structure of electric automobile

Abstract

The invention provides a high-voltage power electronic device arrangement structure of an electronic automobile. The high-voltage power electronic device arrangement structure of the electronic automobile comprises a first high-voltage power electronic device and a second high-voltage power electronic device, wherein a water inlet tube for water cooling, a water outlet tube, a high-voltage input port, an output port and a port which is branched from a port connected to a power battery are arranged on a metal shell of the first high-voltage power electronic device; a water inlet tube for water cooling, a water outlet tube, a high-voltage input port and an output port are arranged on a shell of the second high-voltage power electronic device; the first high-voltage power electronic device is fixedly connected with the second high-voltage power electronic device to form a combined assembly which is fixed on the arrangement structure of an automobile body; water tubes are connected to the same side of the combined assembly but do not belong to a water inlet and outlet tube opening of the same device; and a high-voltage wiring harness is connected to a port and another port which are formed in the same side surface of the combined assembly. By an embodiment of the invention, design cost, manufacturing cost and repair cost can be low, and platformization and modularization of electronic components of the electronic automobile are realized.

Description

technical field [0001] The invention belongs to the field of electric vehicles and relates to a structure for arranging high-voltage power electronic devices on the electric vehicle. Background technique [0002] Electric vehicles are mainly divided into three types: pure electric vehicles, hybrid electric vehicles, and fuel cell electric vehicles. device. The inverter is a device that converts the high-voltage direct current output by the power battery into a high-voltage alternating current that drives the power motor. It is also used as a conversion device for power generation under charging conditions; DC / DC converts the high-voltage direct current output by the power battery into The low-voltage power device required by the low-voltage system of the vehicle; the car charger is a device that is installed on the car and can realize 220V AC to charge the vehicle. [0003] As a technology for arranging high-voltage power electronic devices on electric vehicles, the invent...

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Problems solved by technology

[0004] Invention patent CN 101927739 B can solve the problem of arranging some high-voltage power electronic devices on electric vehicles, but it needs to add an electrical box, and restricts the installation of integrated electrical equipment at the rear of the vehicle, and the integrated electrical equipment also has Its disadvantages, such as when a single part is faulty, the entire electrical box needs to be disassembled for repair or replacement

It is more suitable for the arrangement of small electrical components, but for high-voltage power electronic devices, it is necessary to design a larger electrical box, limited by the tight layout space of electric vehicles, it will be more difficult to arrange the electrical box

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