US Patent No: 5,686,769
Number of patents in Portfolio can not be more than 2000
Method of coil mounting for maximum heat transfer in brushless DC motors
Stats
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Nov 11, 1997
Issued date -
May 26, 1995
filing date -
08/451,869
serial no -
Expired
status
Importance
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Abstract
A flat brushless motor of small size comprising: a thermally conductive base member; a plurality of motor coils fixedly attached to said base member; and a rotor assembly mounted proximately to said plurality of motor coils said motor assembly having a multiple pole permanent magnet incorporated therein.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,763,037 Flat motor having a stationary magnet | 11 | 1987 | |
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| 4,858,073 Metal substrated printed circuit | 65 | 1988 | |
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| 4,737,675 Brushless motor with center leads for preventing signal distortion | 10 | 1986 | |
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| 4,658,162 Printed coil unit for small size actuator | 36 | 1985 | |
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| 5,124,863 Disk drive device having reduced thickness | 16 | 1990 | |
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| 4,733,115 Electric motor | 24 | 1986 | |
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| 5,039,895 Motor arrangement having a coil | 11 | 1988 | |
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| 4,260,920 Multi-pole permanent magnet rotor | 40 | 1978 | |
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| 4,336,475 Slotless brushless motor | 25 | 1979 | |
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| 5,003,429 Electronic assembly with enhanced heat sinking | 36 | 1990 | |
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| 5,295,044 Semiconductor device | 40 | 1992 | |
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| 4,851,731 Structure of a flat-type brushless DC motor | 23 | 1988 | |