A BLDC motor where a half magnet is mounted as an SPM type, comprises: a stator (20) having a concentrated winding on the tooth (23) of a core (21); and a rotor (30) which has a similar pole (33) and a magnet (40) alternately formed on the outer circumferential surface of a core (31) stacked in a skew manner, and has a gap (35) formed by the mismatching of an imaginary circle (10) with the circumferential surface of the similar pole (33). Accordingly, the sinusoidal wave of a back electromotive force is induced based on the shape characteristic of the rotor connected to a half magnet. So, a torque ripple in a concentrated winding structure is reduced to improve quality.

    본 발명은 하프 마그넷을 SPM 타입으로 탑재한 BLDC 모터에 있어서: 코어(21)의 티스(23) 상에 집중권을 지닌 스테이터(20); 및 스큐 방식으로 적층된 코어(31)의 외주면 상에 유사극(33)과 마그넷(40)을 교호로 지니고, 각각의 유사극(33)의 외주면이 가상진원(10)과 불일치되어 갭(35)을 형성하는 로터(30);를 포함하여 이루어지는 것을 특징으로 한다. 이에 따라, 하프마그넷과 연계되는 로터의 형상적 특성을 기반으로 역기전력의 정현파를 유발하여 집중권 구조에서 심화되는 토크리플 저감에 의한 품질 향상을 도모하는 효과가 있다.


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    Title :

    SPM BLDC Half SPM type BLDC motor having concentrated winding


    Additional title:

    집중권 하프 SPM 타입 BLDC 모터


    Contributors:

    Publication date :

    2018-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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