A control module of an automotive electronic water pump

Abstract

The invention discloses a control module of an automotive electronic water pump, which comprises a control cabin, a circuit substrate arranged in the control cabin, a main control module, a filtering module and a driving signal generation module, and is characterized in that the filtering module includes an inductor, a first axial lead capacitor and the second axial lead capacitor, the circuit substrate is fixedly provided with an insulating mounting bracket, and the insulating mounting bracket is provided with a first arc-shaped mounting seat for installing the first axial lead capacitor and for installing the second axial lead capacitor The second arc-shaped mounting seat and the third arc-shaped mounting seat for installing the inductor, the first arc-shaped mounting seat and the second arc-shaped mounting seat are set directly above the circuit substrate, and the third arc-shaped mounting seat is located on the circuit board On the side of the substrate, the bottom of the first arc-shaped mounting seat is provided with a first heat dissipation hole, the bottom of the second arc-shaped mounting seat is provided with a second heat dissipation hole, and the bottom of the third arc-shaped mounting seat is provided with a third heat dissipation hole; The advantages are convenient installation, better heat dissipation effect and improved operating power.

Description

technical field [0001] The invention relates to a control module of an automobile interior device, in particular to a control module of an automobile electronic water pump. Background technique [0002] The heat dissipation methods of the power circuit of the electronic water pump mainly include non-contact natural cooling, contact natural cooling and contact water cooling. Among them, in the contact water cooling method, the components or conductive circuits are in contact with the external heat dissipation structure, and the external heat dissipation structure is heated by the external coolant. Transfer heat dissipation, this heat dissipation method has the best heat dissipation effect, and is generally widely used in electronic water pumps; [0003] The high-power electronic water pump for vehicles is an important part of the engine cooling system. It is generally installed in the engine compartment. The thermal environment of the water pump is poor. The inductance in th...

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Problems solved by technology

[0003] The high-power electronic water pump for vehicles is an important part of the engine cooling system. It is generally installed in the engine compartment. The thermal environment of the water pump is poor. The inductance in the water pump is generally connected in series with the positive input terminal of the DC power supply to isolate the AC component on the power line and block the disturbance of the external current network by the AC component generated by the operation of the pump motor. Due to the impedance of the inductance, the higher the pump power The larger the inductance, the higher the heat generation of the inductance; the capacitor is generally between the positive and negative power lines, and plays a role in stabilizing the voltage of the power line. Generate heat; currently, the maximum temperature of automotive-grade electronic components, inductors and capacitors is 150°C. Due to the high-temperature environment of the engine compartment and the limitation of the space structure, the electronic water pump will not have much design space, and the electronic water pump itself will also generate heat. In order to ensure the normal operation of the electronic water pump, the electronic water pump with the existing structure cannot achieve a large operating power

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