A motor-driven compressor is provided with an inverter device having a circuit board and a connector. The inverter device is provided with an inverter circuit and a filter circuit. The filter circuit has a coil, a first condenser positioned between the coil and the connector, and a second condenser positioned between the coil and the inverter circuit. The coil, the first condenser, and the second condenser are mounted on the circuit board. The circuit board has a conductive pattern that electrically connects the first condenser and the second condenser. The conductive pattern is connected to the ground. The circuit board has an insulating portion configured to make an impedance between the first condenser and the second condenser in the conductive pattern larger than an impedance between the second condenser and the ground in the conductive pattern. According to the present disclosure, it is possible to suppress noise generated from the inverter circuit from leaking to the outside through the connector.

    전동 압축기는, 회로 기판을 갖는 인버터 장치와 커넥터를 구비한다. 상기 인버터 장치는, 인버터 회로와 필터 회로를 구비한다. 상기 필터 회로는, 코일과, 상기 코일과 상기 커넥터의 사이에 위치하는 제1 콘덴서와, 상기 코일과 상기 인버터 회로의 사이에 위치하는 제2 콘덴서를 갖는다. 상기 코일, 상기 제1 콘덴서 및, 상기 제2 콘덴서는, 상기 회로 기판에 실장되어 있다. 상기 회로 기판은, 상기 제1 콘덴서와 상기 제2 콘덴서를 전기적으로 접속하는 도전 패턴을 갖고, 상기 도전 패턴은, 그라운드에 접속되어 있고, 상기 회로 기판은, 상기 도전 패턴에 있어서의 상기 제1 콘덴서와 상기 제2 콘덴서의 사이의 임피던스를, 상기 도전 패턴에 있어서의 상기 제2 콘덴서와 상기 그라운드의 사이의 임피던스보다도 크게 하도록 구성되는 절연부를 갖는다.


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    Title :

    MOTOR-DRIVEN COMPRESSOR


    Additional title:

    전동 압축기


    Contributors:

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H05K PRINTED CIRCUITS , Gedruckte Schaltungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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