| 摘要 |
PROBLEM TO BE SOLVED: To obtain a motor structure capable of enhancing its external appearance. SOLUTION: The cylindrical part 90 and flange 96 of a respiratory apparatus 76 for preventing the pressure difference to be generated by an outside air temperature and a motor internal temperature, are accommodated inside the recess 78. The O ring 100 is surrounded with the flange 96, the first wall surface 82 and the bottom surface 80, preventing itself from being easily viewed from outside. Furthermore, the second wall surface 86 is spread further in the circumferential direction than the first wall surface 82 by means of a stepped surface 84, into a circumferentially spreading tapered shape. Thus, the flange 96 and the cylindrical part 90 can be accommodated inside the recess 78, and the O ring 100 can be prevented from being easily viewed from outside, to be enhanced in the external appearance while maintaining the workability as compared with the case where the recess is not provided in the housing. COPYRIGHT: (C)2009,JPO&INPIT
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