Coil mounting and cooling system for an electric motor
First Claim
1. A coil assembly for use with an electric motor, the coil assembly comprising:
- a coil base;
a first coil;
a first cover that cooperates with the coil base to encircle the first coil; and
a first coil support that secures the first coil to the coil base, the first coil support cantilevering away from the coil base towards the first cover and being spaced apart from the first cover.
1 Assignment
0 Petitions
Accused Products
Abstract
A coil assembly (14) used with a magnet assembly (12) for a linear or planar electric motor (10) is provided herein. The coil assembly (14) includes a plurality of coils (18) attached to a coil base (16) with a plurality of coil supports (22). The coil supports (22) secure the coils (18) to the coil base (16) with the coils (18) spaced apart from a first surface (23) of the coil base (16). As a result thereof, both sides (32), (34) of each coil (18) are exposed for cooling. Further, the coil supports (22) allow the coils (18) to expand laterally with minimal stress and thermal deformation. The coil assembly (14) can also include a plurality of spaced apart covers (62). Each cover (62) fits over one of the coils (18) and is secured to the coil base (16). A fluid (24) can be directed into a fluid passageway (58) around each coil (18) to cool each coil (18).
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Citations
32 Claims
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1. A coil assembly for use with an electric motor, the coil assembly comprising:
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a coil base;
a first coil;
a first cover that cooperates with the coil base to encircle the first coil; and
a first coil support that secures the first coil to the coil base, the first coil support cantilevering away from the coil base towards the first cover and being spaced apart from the first cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A coil assembly for use with an electric motor, the coil assembly comprising:
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a coil base;
a first coil;
a first cover that cooperates with the coil base to encircle the first coil; and
a first coil support that secures the first coil to the coil base, the first coil support including a fluid aperture that extends through a portion of the first coil support and allows for the flow of a fluid through the first coil support. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for manufacturing a coil assembly for an electric motor, the method comprising the steps of:
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providing a coil base;
providing a first coil;
encircling the first coil with a first cover; and
securing the first coil to the coil base with a first coil support, the first coil support cantilevering away from the coil base towards the first cover, the first coil support being spaced apart from the first cover. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
providing a magnet assembly; and
disposing a coil assembly manufactured by the method of claim 17 near the magnet assembly.
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22. The method of claim 21 including the step of directing a fluid around the first coil to maintain an external surface of the coil assembly at a predetermined temperature.
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23. A method of making an exposure apparatus, the method comprising the steps of:
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providing a stage; and
connecting a motor manufactured by the method of claim 21 to the stage for moving the stage.
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24. A method of making a device utilizing the exposure apparatus made by the method of claim 23.
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25. A method for manufacturing a coil assembly for an electric motor, the method comprising the steps of:
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providing a coil base;
providing a first coil;
encircling the first coil with a first cover;
securing the first coil to the coil base with a first coil support; and
directing a fluid through a fluid aperture in the first coil support. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
providing a magnet assembly; and
disposing a coil assembly manufactured by the method of claim 25 near the magnet assembly.
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30. The method of claim 29 including the step of directing a fluid around the first coil to maintain an external surface of the coil assembly at a predetermined temperature.
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31. A method of making an exposure apparatus, the method comprising the steps of:
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providing a stage; and
connecting a motor manufactured by the method of claim 25 to the stage for moving the stage.
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32. A method of making a device utilizing the exposure apparatus made by the method of claim 31.
Specification