Disclosed is a technique relating to a resolver. According to one embodiment of the present invention, a resolver comprises: a stator portion in which one or more excitation coils and one or more output coils are disposed; and a rotor portion disposed in an inner central space of the stator portion at a predetermined gap from the stator portion and changing a gap permeance with the stator portion while rotating around a rotary shaft. When the thickness (tr) of the rotor portion and the thickness (ts) of the stator portion satisfy a following equation, tr - ts >= 0.7 [mm], an influence due to an assembly error that normally occurs when assembling the resolver can be effectively canceled and measurement accuracy can be improved. Therefore, the present invention facilitates resolver design and reduces manufacturing costs.

    레졸버에 관한 기술이 개시된다. 본 발명의 일 실시예에 따른 레졸버는, 적어도 1상 이상의 여자 코일과 적어도 1상 이상의 출력 코일이 배치되는 스테이터부; 및 상기 스테이터부와 소정 간극을 두고 상기 스테이터부의 내측 중심 공간에 배치되어 회전축을 중심으로 회전하면서 상기 스테이터부와의 갭 퍼미언스(gap permeance)를 변화시키는 로터부를 포함하고, 상기 로터부의 두께(tr)와 상기 스테이터부의 두께(ts)가 수학식, tr - ts ≥ 0.7[mm]를 만족함으로써, 레졸버 조립 시 통상적으로 발생하는 조립 오차에 의한 영향을 효율적으로 상쇄하고 측정 정밀도를 개선함은 물론, 레졸버 설계를 용이하게 하고 제조 비용을 절감한다.


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    Title :

    Resolver


    Additional title:

    레졸버


    Contributors:
    LEE WON YONG (author) / NA BYUNG CHEOL (author) / SIM DA HEE (author) / LEE SEONG WOOK (author) / CHOI YEON MUK (author)

    Publication date :

    2017-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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