Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-12-15
1999-11-23
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310 71, 310194, 310DIG6, H02K 500
Patent
active
059905891
ABSTRACT:
In a brushless motor (1), a stator base board (10) has three grooves (14) which are cut radially of a mounting hole (103). A core holder (32) holding a stator core (31) has three protrusions (33) which extend downwardly in the direction of the axis of the motor (1). Each of the protrusions (33) has a first engaging portion (331) having a width which is substantially equal to a width of the grooves (14), and a second engaging portion (332) which is semi-circularly protruded from the outer cylindrical surface of the first engaging portion (331). When each of the protrusions (33) is fitted in the respective cut portions (14), two gaps (34) are formed between the outer surfaces of the second engaging portion (332) and the inner surfaces of the cut portions (14). Through the gaps (34), coil terminals (351) are extended from the upper surface (102) of the stator base board (10) to the lower surface, and are then soldered to lands (43) of the wiring pattern.
REFERENCES:
patent: Re34001 (1992-07-01), Wrobel
patent: 4633110 (1986-12-01), Genco et al.
patent: 5173628 (1992-12-01), Yoshida et al.
patent: 5519271 (1996-05-01), Sakashita et al.
patent: 5747908 (1998-05-01), Saneshige et al.
Kabushiki Kaisha Sankyo Seiki Seisakusho
Nguyen Tran N
Ramirez Nestor
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