Power unit with built-in bypass

• Main Authors: LI KANG, ZHANG LING, YU ZHONGGUI, CHEN JIAYE
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• 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 utility model discloses a power unit with a built-in bypass, which comprises a box body, a radiator, a partition plate, an IGBT module assembly and a rectifier bridge, and is characterized in that the radiator is detachably and fixedly arranged in the box body; the partition plate is detachably and fixedly arranged in the box body, the partition plate, a substrate of the radiator and the inner wall of the box body define an independent heat dissipation channel, and the radiator is located in the heat dissipation channel; the IGBT module assembly and the rectifier bridge are detachably and fixedly arranged on the surface of the radiator substrate. The IGBT module assembly and the rectifier bridge are arranged on the surface of the substrate of the radiator, so that the radiating efficiency can be improved; the bypass transformer, the bypass contactor and the bypass drive board are detachably and fixedly arranged in the box body and located on the outer side of the heat dissipation channel, and the situatio