Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1990-10-31
1991-12-24
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Linear
310 68B, 318135, 318687, H02K 4102
Patent
active
050755838
ABSTRACT:
A brushless DC linear motor includes a coil unit in which electric flow terminals of each of three flat coils are connected with a star connection or with a delta connection; and the three flat coils have the same shape whose empty core section and winding section have their dimension of breadth determined on 1/2 of a magnetic pole-pitch of a magnetic body and are arranged in a shifted position of the magnetic pole-pitch by n/3 (n is a natural number excluding multiples of 3) on the coil unit. The motor also includes a sensor unit in which three magnetic detection sensors corresponding to the respective flat coils are arranged at intervals of 1/3+2m (m=0, 1, 2, 3, . . . ) of the magnetic pole-pitch and any of these magnetic detection sensors and its corresponding flat coils are arranged at the determined distance in accordance with the magnetic pole-pitch. In accordance with the signal from each of the sensors detecting the polarity of the magnet body, an electric flow switching means transfers the electric flow polarity to three terminals of a star connection or a delta connection.
REFERENCES:
patent: 4051398 (1977-09-01), Kondo
patent: 4151447 (1979-08-01), von der Heide et al.
patent: 4274020 (1981-06-01), Parsch et al.
patent: 4620253 (1986-10-01), Garwin et al.
patent: 4857781 (1989-08-01), Shih
Andou Toshihiro
Nagasawa Yoshiaki
Onoyama Toshiaki
Sakagami Shigeru
Stephan Steven L.
To Edward H.
Toyota Shatai Kabushiki Kaisha
LandOfFree
Brushless DC linear 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 Brushless DC linear motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brushless DC linear motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-45459