Claims
- 1. A self-starting two-pole single-phase synchronous motor, comprising:
- a stator having two stator-pole-forming limbs having stator pole faces, and an exciter coil, and
- a permanent magnet rotor defining a rotor axis and disposed between said stator pole faces, said limbs being arranged such that said pole faces define air gaps between the rotor and the stator, said rotor being magnetized diametrically so as to define two only opposite magnetic poles on its circumference,
- characterized in that said rotor comprises a plastic-bonded anisotropic magnetic material forming the permanent magnet, magnetized such that the rotor poles are opposite each other and each extend over an angular range, about the rotor axis, less than 90.degree..
- 2. A motor as claimed in claim 1, characterized in that the rotor poles each extend over an angle of approximately 65.degree. about the rotor axis.
- 3. A motor as claimed in claim 1, characterized in that said rotor permanent magnet has a circular cylindrical circumference.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2286/81 |
May 1981 |
ATX |
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Parent Case Info
This is a continuation of application Ser. No. 593,173, filed Mar. 26, 1984, which is a continuation of Application Ser. No. 377,780 filed May 13, 1982, now abandoned.
US Referenced Citations (17)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1488270 |
Mar 1974 |
DEX |
1017193 |
Dec 1952 |
FRX |
2451620 |
Mar 1980 |
FRX |
1403310 |
Aug 1975 |
GBX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
593173 |
Mar 1984 |
|
Parent |
377780 |
May 1982 |
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