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Although attempts have been made to replace wire-coil motors and generators with printed circuit coils, the models never gained general use due to their inferior performance. But film coil has superior characteristics when applied to motors and generators. Film coil is made the same way as flexible printed circuits. It is anticipated that film coil technology will open new vistas in motor and generator technology, which has hardly changed since Michael Faraday discovered the basic principles some 200 year ago. Although film coil technology has been adapted only to a few kinds of motors so far, it will be employed in all kinds of motors and generators in the near future. Etching on the two copper films attached on both sides of the insulation film forms the coil pattern. |
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A dense coil pattern is achieved by connecting both sides of the coil patterns via through-holes. |
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- Light and small with simple structure
- Small inductance and high efficiency without slots
- Easy manufacturing with no coil winding
- Easy maintenance by changing damaged film coils
- Easy production of various motors without core or with simple cores
structures
- Meet various customer demands, with quick delivery of small quantity and
easy production
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1] Coreless Motors
The coreless DC motors has no iron core in its rotor, only armature coils and a commulator.
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2] Brushless Disk Motors.
Film coil disk motors have more coil layers than printed circuit ones. The stator consists of a disk film coil and a laminated steel-wound core.
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1) Small motors : Pager, Mobile, Office automation, Audio and video
equipment, Computor peripheral device
2) Medium-size motors : Home appliance, Automobile, Tool, Medical
equipment, Electric vehicle
3) Large motors : Industrial machine, Traction motor, Electric vehicles
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Copyright(c)Robotech 2002. All right reserved.
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