Cooling device for DCDC converter of pure electric vehicle

The utility model relates to the field of heat dissipation of pure electric vehicles. The utility model provides a cooling device for a DCDC converter of a pure electric vehicle. The heat dissipationdevice of the DCDC converter of the pure electric vehicle comprises a box body and a heat dissipation channel, the heat dissipation channel is a closed cavity, the heat dissipation channel is fixedlyconnected with the two side faces of the box body, and a liquid inlet and a liquid outlet which can be communicated with the closed cavity are formed in the two side faces, connected with the heat dissipation channel, of the box body. The device not only has a good heat dissipation effect on a power element in the DCDC converter, but also is more compact in structure, the size and the weight of the DCDC converter of the pure electric vehicle are reduced, and then the whole vehicle can be lightened. 本实用新型涉及纯电动汽车散热领域，提供一种纯电动汽车DCDC转换器散热装置，该纯电动汽车DCDC转换器散热装置包括箱体、散热通道，所述散热通道为封闭腔体，所述散热通道与所述箱体两侧面固定连接，所述箱体与所述散热通道连接的两侧面开设能够与所述封闭