Heat dissipation device for oil pump

Abstract

The invention relates to a heat dissipation device for an oil pump. The oil pump comprises a motor and a hydraulic oil tank. The motor comprises a motor controller IGBT module. The heat dissipation device is arranged on the lower portion of the motor controller IGBT module. The IGBT module comprises a control panel, a driving plate, a gate pole plate and an IGBT element. The heat dissipation device comprises a groove and an oil fluid assembly. The groove is a rectangular water-cooling groove composed of a left water tank and a right water tank. The left water-cooling tank is arranged at the lower end of the IGBT element, and the right water-cooling tank is arranged on the lower portion of the oil fluid assembly. According to the heat dissipation device, integrated consideration of the IGBTelement and hydraulic oil fluid heat dissipation is put forward for the first time, the function of an oil cooler is achieved simultaneously on the basis of traditional water-cooling heat dissipation, the characteristic of the low cold source temperature of the heat dissipation device is fully utilized, a cooling liquid flowing out of the heat dissipation device can still serve as a cold source of an oil-water heat exchanger, one path of circulating water is reduced, and the high integration and lightweight effects are achieved.

Description

technical field [0001] The invention relates to the field of vehicle heat dissipation, in particular to a heat dissipation device for an oil pump. Background technique [0002] At present, the heat dissipation of motors and motor controllers is particularly important in vehicle design. In the traditional design concept, the heat dissipation of oil and electricity is considered separately. For example, the heat dissipation of the oil pump motor oil and the heat dissipation of the IGBT components of the motor controller are carried out through the oil cooler and the water cooling plate respectively. If the two share one refrigerant, then It is necessary to connect the oil cooler and the water cooling plate through pipelines. With the development and application of new technologies such as high-power-density engines, electromechanical hybrid transmissions, and electric transmissions, the layout of vehicles is becoming more and more compact, and the relative positions of the oi...

AI Technical Summary

Problems solved by technology

With the development and application of new technologies such as high-power-density engines, electromechanical hybrid transmissions, and electric transmissions, the layout of vehicles is becoming more and more compact, and the relative positions of the oil pump and the oil pump motor controller are not easy to determine, resulting in the gap between the oil cooler and the water cooling plate. The design of the connecting pipeline is complicated, the resistance of the water system becomes larger, and it is easy to form air resistance, causing the system to overheat; in addition, after a long period of use, the possibility of pipeline aging and leakage will increase, which is a common failure in the system. Among them, the proportion of failure to work due to pipeline leakage is as high as 40% to 50%.

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