Motor with encapsulated stator and method of making same

  • US 7,067,944 B2
  • Filed: 01/14/2005
  • Issued: 06/27/2006
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A motor comprising:

  • a) a baseplate;

    b) a stator assembly comprisingi) a core having poles, andii) windings around said poles; and

    c) an injection molded thermoplastic material encapsulating the windings and also locking the stator assembly to the baseplate, the baseplate and stator assembly not being in direct contact with one another but rather having a space between them filled in by the thermoplastic material;

    d) wherein the baseplate is made of a thermoplastic material having a modulas of elasticity of at least 1,000,000 psi at 25°

    C. and the thermoplastic material of which the baseplate is made is the same material that encapsulates the windings, and the baseplate and winding encapsulation are formed as one monolithic body.

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