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Electric vehicle controller with efficient heat dissipation channel

A technology of electric vehicle controller and heat dissipation channel, applied in the direction of cooling/ventilation/heating transformation, etc., can solve the problems of the temperature rise of the power switch tube, the shortened service life, and the difficulty of dissipating the heat dissipation seat shell, so as to accelerate the heat dissipation and prolong the service life. , to avoid the effect of long-term exposure to high temperature environment

Inactive Publication Date: 2014-04-16
GUANGDONG GOBAO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat sink of the electric vehicle controller of the existing electric vehicle controller is provided with a power switch tube placement cavity, and a power switch tube and an electronic circuit board are arranged in the power switch tube placement cavity, and waterproof and moisture-proof are required to protect the circuit board. The two ends of the cavity where the power switch tube is placed are generally sealed. When the controller is working, the power switch tube will generate a lot of heat. In the car body, the air circulation is poor, so the heat is concentrated on the heat sink shell and it is difficult to dissipate. Especially when the electric vehicle is running under heavy load, the temperature of the power switch tube rises sharply, basically exceeding the shell and heat sink. Heat dissipation capacity. At this time, the internal components will work in a high temperature environment for a long time, which will reduce their service life, and even cause overheating damage, resulting in the loss of the function of the electric vehicle

Method used

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  • Electric vehicle controller with efficient heat dissipation channel
  • Electric vehicle controller with efficient heat dissipation channel
  • Electric vehicle controller with efficient heat dissipation channel

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1, such as figure 1 , 2 As shown, an electric vehicle controller with a high-efficiency heat dissipation channel, the heat dissipation seat 2 of the electric vehicle controller 1 is provided with a power switch tube placement cavity 21, and the heat dissipation seat 2 is provided with a heat dissipation channel on the side wall 22 where the power switch tube is installed 23. The heat dissipation channel 23 is arranged side by side with the switch tube placement cavity 21. The side wall 22 where the power switch tube is installed in the heat dissipation channel 23 is provided with a heat sink 24, and the end surface of the heat dissipation channel 23 is provided with a convection cooling device 3.

[0020] In order to further dissipate heat, heat dissipating fins 25 are provided on the outer surface of the heat dissipating seat 2 to assist in dissipating heat.

[0021] In this embodiment, the cross section of the heat sink 24 gradually decreases in width from th...

Embodiment 2

[0024] Example 2, such as figure 1 , 3 As shown, it is basically similar to Embodiment 1, the difference is that the convection cooling device 3 of this embodiment includes two cover plates 5 arranged at both ends of the heat dissipation channel 23, and a water circulation cooling system 6 is set on the two cover plates 5, and the water circulation cooling The system 6 performs heat exchange and heat dissipation with the cooling fins 24 of the heat dissipation channel 23, and the heat dissipation effect is good. As a person skilled in the art, the water circulation cooling system 6 can be set to different forms. In this embodiment, the inlet and outlet pipes 71, The pipeline 7 formed by 72, the pipeline 7 is connected to the water tank 8, and the circulating water pump 9 is arranged on the pipeline 7 to accelerate the water circulation. Of course, the cooling net 10 can also be set on the pipeline 7 to accelerate the cooling of the water and facilitate heat dissipation.

[00...

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Abstract

The invention relates to the technical field of electric vehicle fittings, in particular to an electric vehicle controller with an efficient heat dissipation channel. The heat dissipation channel is arranged on the side wall, where a power switch tube is installed, of a heat sink of the electric vehicle controller. The heat dissipation channel and a switch tube containing cavity are arranged side by side. Cooling fins are arranged on the side wall, where the power switch tube is installed, in the heat dissipation channel. A convection cooling device is arranged on the end face of the heat dissipation channel. Even if an electric vehicle runs with a heavy load and the temperature of the power switch tube rises sharply, the heat sink provided with the heat dissipation channel can realize forced heat dissipation through the convection cooling device, so that heat conducted to the cooling fins by the power switch tube are conducted away in time, the situation that elements inside the controller are in a high-temperature environment for a long term is avoided, the service life is prolonged, and the event that the function of the whole electric vehicle is lost due to overheated damage is avoided.

Description

technical field [0001] The invention relates to the technical field of electric vehicle accessories, in particular to an electric vehicle controller with a high-efficiency heat dissipation channel. 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 hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
Inventor 温瑭玮陈清付柏松
Owner GUANGDONG GOBAO ELECTRONICS TECH CO LTD