Inverter device and electric compressor

• Main Authors: HORIUCHI HIROFUMI, TAKIZAWA JUN, SASAKI YUJI, WADA TERUYUKI, TAKAMURA EIJI
• Format: Patent
• Language: Chinese; English
• Published: 14.08.2020
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

An inverter unit (30) of the present invention comprises: a circuit board (31) provided with a power device (37) and a capacitor (38) forming an inverter circuit on a front surface (36a), and an exposure region (SA) provided on a rear surface (36b); a lower case (33) that is provided with an exposure opening (59) for exposing the exposure region (SA), and supports the periphery of the exposure region (SA); and an upper case (32) provided with a rib structure (46) that is pressed against the front surface (36a) of the circuit board (31) to compress the circuit board (31) toward the lower case (33), the lower case (33) being attached to the upper case (32). The circuit board (31) is sandwiched between the lower case (33) and the upper case (32). 本发明的逆变器单元(30)具备：电路基板(31)，在表面(36a)设置有构成逆变器电路的功率器件(37)和电容器(38)，并在背面(36b)设置有暴露区域(SA)；下部盒(33)，设置有使暴露区域(SA)露出的暴露开口(59)，并支承暴露区域(SA)的周围；以及上部盒(32)，设置有被按压于电路基板(31)的表面(36a)并将电路基板(31)朝向下部盒(33)按压的肋构造(46)，并且下部盒(33)被安装于上部盒(32)。电路基板(31)被下部盒(33)和上部盒(32)夹持。