Motor

Details Motor Motor

2009-09-23

2011-11-22

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S154210, C310S154010, C310S154240, C310S154250, C310S154080, C310S0400MM

Reexamination Certificate

active

08063529

ABSTRACT:
A motor comprises a stator and a rotor (20) disposed within the stator. The stator comprises a shell comprising a plurality of sidewalls (10a-10d) and arcuate connection parts (11a-11d) connecting neighboring sidewalls. The cross section of the shell is a polygon with fillets. The stator also comprises a plurality of magnets (12a-12d) installed inside the arcuate connection parts. The magnets (12a-12d) are mutual arranged at intervals. The outer surface of each magnet (12a-12d) is attached to inner surfaces of the two neighboring sidewalls (10a-10b) and a gap is formed between the magnet and the inner surface of the corresponding arcuate connection part. Air gaps are formed between the inner surface of the magnets (12a-12d) and the outer surface of the rotor. Disposing the magnets inside the arcuate connection parts improves the space utilization ratio. In addition, the gaps formed between the outer surface of magnets and the inner surface of arcuate connection parts may be used for adhesive to fix the magnets to the shell.

REFERENCES:
patent: 6995488 (2006-02-01), Yamashita et al.
patent: 7427817 (2008-09-01), Uenishi et al.
patent: 7498706 (2009-03-01), Kuroda
patent: 7528515 (2009-05-01), Kuroda
patent: 2157677 (2010-02-01), None
patent: 2157678 (2010-02-01), None
patent: 09224337 (1997-08-01), None

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