| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow for use in high temperature environment by integrating a motor and an inverter, and suppressing heat transfer from the motor to the inverter. <P>SOLUTION: The brushless motor comprises a rotor 12 supported by bearings 26 at both ends, a stator 11 around which a winding 16 is wound, an inverter performing conduction driving of the winding 16, a motor case 31 housing the rotor 12 and the stator 11 and holding the outer periphery of the stator 11, and a board case 32 housing a circuit board 14 including the inverter. Protrusions 32s, 31s protruding from the surface are provided on the surface of any one of the motor case 31 or the board case 32, and the motor case 31 and the board case 32 are brought into contact only with the protrusions 32s, 31s and a plurality of protrusions 30a formed on an annular rising portion 32a protruding annularly from the surface of the board case 32, before joining the motor case 31 and the board case 32. <P>COPYRIGHT: (C)2013,JPO&INPIT |
