Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-04-03
1998-09-15
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
2642722, 310 42, 310 43, 310 90, H02K 1504
Patent
active
058061690
ABSTRACT:
An electrical motor and the process for forming that motor utilizes injection molding techniques to unitize the stator assembly. The stator assembly includes a stator lamination stack and preferably a metal front end cap which is secured to the lamination stack after the lamination stack is insulated and wound. The windings are terminated at a plurality of conductive pins fusion welded to the terminating ends of the windings. The stator assembly with front end cap in place is positioned in an injection molding die. Pressure is applied to the die, and molten plastic is injected under pressure to fill voids in the stator assembly, and also to form a plastic mass which will serve as the rear end cap. The rear end cap is also molded with a connector portion which fixes the conductive pins in place as a part of the connector. A bore formed in the stator assembly provides mounting surfaces for bearings on a rotor assembly.
REFERENCES:
patent: 2916642 (1959-12-01), Macks
patent: 3046604 (1962-07-01), Graham et al.
patent: 3156076 (1964-11-01), Origoni et al.
patent: 3258624 (1966-06-01), Turk
patent: 3433986 (1969-03-01), Arutunoff
patent: 4015154 (1977-03-01), Tanaka et al.
patent: 4029977 (1977-06-01), Chai et al.
patent: 4200344 (1980-04-01), Binns et al.
patent: 4382199 (1983-05-01), Isaacson
patent: 4538084 (1985-08-01), Kawada et al.
patent: 4549105 (1985-10-01), Yamamoto et al.
patent: 4626725 (1986-12-01), Kawada et al.
patent: 4696631 (1987-09-01), Nitt
patent: 4712028 (1987-12-01), Horber
patent: 4713570 (1987-12-01), Mastromattei
patent: 4763034 (1988-08-01), Gamble
patent: 4781610 (1988-11-01), Mercer
patent: 4841190 (1989-06-01), Matsushita et al.
patent: 4922604 (1990-05-01), Marshall et al.
patent: 5008572 (1991-04-01), Marshall et al.
patent: 5073735 (1991-12-01), Takagi
patent: 5191698 (1993-03-01), Sumi et al.
patent: 5331237 (1994-07-01), Ichimura
patent: 5333957 (1994-08-01), Yip et al.
Byrnes Edward J.
Neal Griff D.
Trago Bradley A.
LandOfFree
Method of fabricating an injected molded motor assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of fabricating an injected molded motor assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fabricating an injected molded motor assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-76280