Motor case

Details Motor case Motor case

2007-03-13

2007-03-13

Schuberg, Darren (Department: 2834)

Metal working

Method of mechanical manufacture

Assembling or joining

C310S049540, C310S0400MM, C310S089000

Reexamination Certificate

active

11379695

ABSTRACT:
In a motor case1, recesses8are formed in inner surfaces of upper and bottom surface portions2and3(which are spaced from each other by a distance smaller than the distance between left and right side surface portions4and5), thus reducing the thickness of these surface portions2and3, thereby increasing a space for receiving a stator coil10as much as possible. Unlike a construction in which a stator coil is exposed through openings formed in a motor case, the stator coil is covered with the motor case, and therefore the motor is excellent in shielding performance and impact resistance. The motor case1has a square tubular shape, and can be formed by blanking, press-forging (for the purpose of forming the recesses) and bending a metal sheet, and the motor case can be produced at a low cost.

REFERENCES:
patent: 5412267 (1995-05-01), Okada et al.
patent: 6191516 (2001-02-01), Froehlich et al.
patent: 6594882 (2003-07-01), Tanida et al.
patent: 2002/0005670 (2002-01-01), Takagi et al.
patent: 2002-238199 (2002-08-01), None

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