To provide a rotor, a motor and a brushless wiper motor, capable of properly holding a permanent magnet on a rotor surface and also capable of suppressing an increase in leakage magnetic flux.SOLUTION: A rotor 9 includes a rotor core 32, a permanent magnet 33, a salient pole 35 and a claw 37. The permanent magnet 33 includes a flat surface 33g formed on the outside in the radial direction at least in part in the axial direction of an edge in the circumferential direction. The salient pole 35 projects outward in the radial direction between the permanent magnets 33 adjacent to each other on the outer peripheral surface 32b of the rotor core 32 in the circumferential direction. The claw 37 projects toward the flat surface 33g of the permanent magnet 33 at least in part in the axial direction of a tip 35a of the salient pole 35. The claw 37 includes a contact surface 37a in surface contact with the flat surface 33g, the contact surface being in parallel with the flat surface 33g closer on a center side than an edge 33j of the permanent magnet 33 in the axial direction.SELECTED DRAWING: Figure 4

    【課題】ロータの表面において永久磁石を適切に保持するとともに、漏れ磁束の増大を抑制することができるロータ、モータ及びブラシレスワイパーモータを提供する。【解決手段】ロータ9は、ロータコア32と、永久磁石33と、突極35と、爪部37とを備える。永久磁石33は、周方向の端部のうちで軸方向における少なくとも一部において径方向の外側に形成された平坦面33gを備える。突極35は、ロータコア32の外周面32b上の周方向で隣り合う永久磁石33の間において径方向の外方に突出する。爪部37は、突極35の先端部35aのうちで軸方向における少なくとも一部において永久磁石33の平坦面33gに向かって突出する。爪部37は、永久磁石33における軸方向の端部33jよりも中央側において平坦面33gと平行であって平坦面33gに面接触する接触面37aを備える。【選択図】図4


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    Title :

    ROTOR, MOTOR AND BRUSHLESS WIPER MOTOR


    Additional title:

    ロータ、モータ及びブラシレスワイパーモータ


    Contributors:

    Publication date :

    2020-05-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



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