Radiator and power conversion device

• Main Authors: REN JUNHENG, LI JIYANG
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The embodiment of the invention provides a radiator and a power conversion device. The power conversion device comprises a shell, a power element and the radiator. An installation cavity is formed in the shell, and the power element is installed in the installation cavity. The radiator comprises a heat-conducting plate, the heat-conducting plate is installed on the shell and comprises a first side in the thickness direction of the heat-conducting plate, the first side is provided with a heat source assembly area, and the power element is arranged in the heat source assembly area and makes heat-conducting contact with the heat-conducting plate. At least one sealed cavity is formed in the heat conduction plate, at least two flow channels distributed at intervals are arranged in the cavity, and two-phase cooling media are contained in the flow channels. The flow channel comprises a first end and a second end, the first end and the second end are distributed at intervals in the second direction, and the first end