An elastically fixed electric vehicle controller cooling device

Abstract

The invention relates to the technical field of electric vehicle accessories, in particular to an elastically fixed radiator for an electric vehicle controller; On the upper top surface of the cavity, the outer side of a spring pressing edge is elastically pressed on the row of power switch tubes, so that the power switch tubes are pressed on the installation plane of the hollow inner cavity, and there is no need to install aluminum strips and power switch tubes one by one. The characteristics of convenient and fast installation, simplified production process, and reduced production cost; the present invention does not require bolts to pass through the power switch tube, avoiding the heat sink of the traditional heat sink due to the short creepage distance between the bolt and the power switch tube, which cannot fully meet the high voltage resistance The problem of insulation resistance requirements occurs; the heat dissipation path is shorter than the traditional heat sink, so that the heat can be dissipated faster, greatly reducing its overheating damage rate, and enhancing its service life.

Description

technical field [0001] The invention relates to the technical field of electric vehicle accessories, in particular to an elastically fixed radiator for an electric vehicle controller. Background technique [0002] China used to be a big country of bicycles. With the improvement of people's living standards, the promotion of clean energy and the enhancement of environmental protection awareness, electric vehicles are becoming more and more popular. The electric vehicle industry has achieved rapid development in the Chinese market for several years. . Electric vehicle controller is one of the four major components of electric vehicles, and its quality and performance guarantee plays an important role in the development of electric vehicles. [0003] In electric vehicle controllers, the power switch tube (MOS tube) has the characteristics of small size, large heat generation, and high heat density. Most controllers are equipped with heat sinks to dissipate the high heat genera...

AI Technical Summary

Problems solved by technology

Therefore, there are the following disadvantages: 1. When the power switch tube is locked on the aluminum bar, the same number of bolts as the power switch tube is required, and the controller is divided into 6 tubes, 9 tubes, 12 tubes, and 15 tubes according to the number of power switch tubes. , 18 tubes or even more, the installation of too many bolts not only takes time and is inconvenient to install, but also increases the manufacturing cost accordingly; 2. The bolts connected to the power switch tube must pass through the heat dissipation part of the power switch tube, The creepage distance between them is limited, which cannot meet the requirements of high-voltage insulation resistance; 3. The heat dissipation path is the power switch tube-aluminum bar-mounting seat, resulting in a long heat dissipation path, increased thermal resistance, and power switch tubes. The heat cannot be dissipated quickly. When the ambient temperature is high and the working conditions are harsh, the power switch tube will be thermally damaged due to the inability to dissipate heat in time, resulting in the failure of the vehicle to operate normally.

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