Rotor core and direct-current motor

Details Rotor core and direct-current motor Rotor core and direct-current motor

2007-06-05

2007-06-05

Mullins, Burton S. (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S254100, C310S044000, C310S269000

Reexamination Certificate

active

11176142

ABSTRACT:
A core includes a ring body and a plurality of teeth. The teeth extend radially outward form the outer circumference of the ring body. The core is formed by assembling a first core member and a second core member. Each core member has part of the teeth the number of which is half the total number of the teeth. Each tooth includes a tooth body about which the coil is wound, and a magnetism converging portion provided at the distal end of the tooth body. The tooth height of each tooth body gradually increases from a distal section to a proximal section of the tooth body. The tooth width gradually decreases from the distal section to the proximal section. The wire is wound about each of the teeth of the first and second core members. Then, the first and second core members are assembled to form the core. Accordingly, a rotor core having a high coil accommodation efficiency and a high coil space factor is obtained.

REFERENCES:
patent: 1464184 (1923-08-01), Mansbendel
patent: 2655613 (1953-10-01), Wieseman
patent: 3075109 (1963-01-01), Roe et al.
patent: 3573519 (1971-04-01), Kumazawa
patent: 3980243 (1976-09-01), Schulman
patent: 4834305 (1989-05-01), Ruben et al.
patent: 5100071 (1992-03-01), Hongo et al.
patent: 6011340 (2000-01-01), Bonura
patent: 6532645 (2003-03-01), Becherucci et al.
patent: 2001/0006292 (2001-07-01), Inaba et al.
patent: 2002/0121831 (2002-09-01), Egawa et al.
patent: 2004/0113511 (2004-06-01), Schmidt et al.
patent: 879410 (1953-06-01), None
patent: 3630024 (1988-03-01), None
patent: 4436257 (1996-04-01), None
patent: 59-075774 (1984-05-01), None
patent: 64-050667 (1989-03-01), None
patent: 09-019095 (1997-01-01), None
patent: 63-187545 (1998-03-01), None
patent: 2002247826 (2002-08-01), None
patent: 02/058210 (2002-07-01), None
patent: WO 02/058210 (2002-07-01), None
Machine translation of JP 09-019095 (supplied by applicant).
Office Action dated Mar. 24, 2006 for related German Application No. 10348187.7-32 with English translation.
Japanese Office Action dated Jun. 6, 2006, for Application No. 2002-304670.

Affiliated with

Also associated with

Rating

Rotor core and direct-current motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotor core and direct-current motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor core and direct-current motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3853500