On -vehicle quick heat radiation structure who charges machine

The utility model discloses an on -vehicle quick heat radiation structure who charges machine, including a PCB board to and install the switch tube on this PCB board, the pin of switch tube welds on the PCB board, the switch tube is one row of setting, and a fin is all installed to its outside, heat dissipation backboard is installed at the back of switch tube, the fin passes through lock screw locking installation with the heat dissipation backboard at back, the fin is invertd and is set up and contact heat conduction with the water course. The utility model discloses simple structure through the mode of invering the fin, improves space utilization's problem on water -cooled basis, more excellent in the aspect of structure and the cost. 本实用新型公开了种车载充电机的快速散热结构，包括块PCB板，以及安装于该PCB板上的开关管，开关管的引脚焊接于PCB板上，所述开关管呈排设置，其外部均安装块散热片，所述开关管的背部安装有散热背板，所述散热片与背部的散热背板通过第锁紧螺丝锁紧安装，所述散热片倒置设置并与水道进行接触导热。本实用新型结构简单，通过倒置散热片的方式，在水冷的基础上改善空间利用率的问题，结构以及成本方面更优。