Method of making integrated stator, brushless direct-current...

Details Method of making integrated stator, brushless direct-current... Method of making integrated stator, brushless direct-current...

2011-06-14

2011-06-14

Nguyen, Tran N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S180000

Reexamination Certificate

active

07960893

ABSTRACT:
Provided are a radial core type brushless direct-current (BLDC) motor and a method of making the same, having an excellent assembly capability of division type stator cores in a double rotor structure BLDC motor. The BLDC motor includes a rotational shaft, an integrated double rotor including an inner rotor and an outer rotor, and a rotor supporter wherein a trench type space is formed between the inner rotor and the outer rotor, and an end extended from the inner rotor is connected with the outer circumferential surface of a bushing combined with the rotational shaft, and an integrated stator wherein one end of the stator is disposed in the trench type space and an extension axially extended from the other end of the integrated stator is fixed to the housing of the apparatus. In the integrated stator, U, V, W phase coil assemblies are formed of a number of core groups including a number of division type cores, wherein for each phase coil assembly, the division type core groups of the U, V, W phase coil assemblies are alternately disposed in an annular form in sequence of the phases, and the respective division type core groups are integrally formed into a single body in annular form by a stator support.

REFERENCES:
patent: 5979194 (1999-11-01), Matsumoto et al.
patent: 6343492 (2002-02-01), Seagar et al.
patent: 6396190 (2002-05-01), Ahn et al.
patent: 7687969 (2010-03-01), Kim et al.
patent: 10201993 (1998-08-01), None
patent: 2001016835 (2001-01-01), None

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