DC-DC conversion power box for vehicle

Abstract

The invention relates to a DC-DC conversion power box for a vehicle, which comprises a box body and a converting power source arranged in the box body. The box body comprises a box cover and a box seat; threaded connection structures are arranged between the box seat and the box cover, and cable holes are arranged on two opposite side surfaces of the box seat; box seat radiating fins are arranged on the other two opposite side surfaces, without the cable holes, of the box seat; box cover radiating fins are disposed on two corresponding side surfaces of the box cover; an anti-explosion sealing structure is adopted between the box cover and the box seat; the threaded connection structures between the box cover and the box seat is arranged on the two opposite side surfaces, with radiating fins, of the box body; and the threaded connection structures between the box cover and the box seat comprise connecting screws, screw holes arranged on the box cover and through holes arranged on the box seat. The DC-DC conversion power box for the vehicle resolves the technical problem that the protection level of a box body of an existing DC-DC conversion power box for a vehicle does not meet requirements. In addition, the DC-DC conversion power box for the vehicle has a one-way water drainage breathing function, and is easy in manufacture, high in reliability and low in cost.

Description

technical field [0001] The invention relates to a DC-DC conversion power supply box for vehicles. Background technique [0002] At present, the protection level of the DC-DC conversion power supply box for vehicles is not high. In the case of bad weather or car washing, external water or water vapor can easily enter the inside of the power supply box, causing circuit failure. [0003] Although some car DC-DC conversion power supply boxes also adopt a high sealing level to prevent impact water (such as car wash water or rainwater) from entering. However, as the temperature of the box changes repeatedly, water vapor always enters the closed box to condense, and the condensed water cannot be discharged from the box for a long time, which will affect the normal operation of the circuit structure in the box. In order to prevent water vapor from condensing and staying in the box, a small hole through the box is provided on the lower side or bottom of the general box. Sometimes i...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a DC-DC conversion power supply box for vehicles, which solves the technical problem that the box protection level of the existing DC-DC conversion power supply boxes for vehicles does not meet the requirements

Images