Liquid-cooled controller

Abstract

The invention discloses a liquid-cooled controller comprising a casing, a circuit board and end covers arranged at both ends of the casing, wherein the casing is provided with a cooling pipeline, the cooling pipeline and the casing are in an integrated structure, and the circuit board is arranged in a cavity of the casing; and heat-conducting liquid is filled into a cavity of the cooling pipeline. The invention has skillful concept and ensures that heat can be quickly transferred to the casing of the controller through the heat-conducting liquid in the cooling pipeline by arranging the cooling pipeline on the casing and generates heat exchange with the outside air to realize heat radiation, thereby ensuring the stability of a working environment inside the controller; the heat-conducting liquid adopted by the invention has no toxicity, no smell and no any corrosiveness and is beneficial to environmental protection; and meanwhile, because a liquid heat-radiation technology has higher heat load capability and heat-radiation efficiency, the condition that the controller generates a fault because of overtemperature can be avoided, the service life of an electric vehicle is prolonged, the production cost is lowered, and the economic benefit is enhanced.

Description

technical field [0001] The invention relates to a controller, in particular to a liquid-cooled controller which adopts liquid heat conduction cooling for heat dissipation, has good heat dissipation effect, simple structure and long service life. Background technique [0002] At present, with the popularization and popularization of the concept of "green environmental protection", electric vehicles have been widely used as a clean and environmentally friendly vehicle with zero emissions and no pollution. [0003] However, with the gradual improvement of the performance of the electric vehicle, the circuit board on its controller is also more and more complicated, and the heat emitted is also greatly increased, and the quality of heat dissipation directly affects the control performance of the electric vehicle. The controllers of electric vehicles in my country are mainly 350W and 450W, and their instantaneous power can reach 1200W. The 500W ~ 800W electric motorcycle control...

AI Technical Summary

Problems solved by technology

The 500W-800W electric motorcycle controller has an instantaneous power of 1500-1800W, which is highly sensitive to heat load, while the heat capacity and heat dissipation efficiency of the traditional air-cooled heat dissipation system are very limited.

Therefore, when the controller is in the peak working state, its temperature will rise rapidly. Once it exceeds the critical temperature range of the controller, it will cause the loss of some specific functions of the controller, or burn out key components; at the same time, it will also affect For the normal operation of the heating device, excessive heat will affect the working state of the electronic components, causing electronic offset inside the transistor, resulting in a decrease in the stability of the controller

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