Pin type power single tube integration scheme applied to electric control product of electric vehicle

2016 
The invention discloses a pin type power single tube integration scheme applied to an electric control product of an electric vehicle, and relates to the technical field of a new energy vehicle. The pin type power single tube integration scheme comprises the following steps of firstly, pressing a pin type power device on a metal support plate by a press sheet or a press strip, wherein an insulation heat conduction gasket is arranged between the power device and the metal support plate; secondly, welding a pin of the power single tube and a bus capacitor on a thick copper printed circuit board (PCB); and finally, pressing the metal support plate integrated with the thick copper PCB on a cooling cold plate, wherein heat conduction silicon grease is coated between the metal support plate and the cooling cold plate. Compared with a package type power module, the cost is low, the design flexibility is greatly improved, the selective soldering or wave soldering feasibility of a power single tube pin is greatly improved, the power single tube is light in weight, the heat capacity of a product is low, and the welding quality is high; and the heat of the power single tube can be transversely diffused to the metal support plate, the cooling area is effectively extended, and the thermal resistance of the system is reduced.
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