Resolver stator clamping plate

Abstract

A resolver assembly for an electric motor includes a housing, a resolver stator for an electric motor, and a clamping plate. The clamping plate includes a first radially extending portion fixed to the housing, a second radially extending portion pressing the resolver stator towards the housing, and an axially extending portion arranged axially between the first radially extending portion and the second radially extending portion. In an example embodiment, the clamping plate is elastically deformed. In an example embodiment, the resolver assembly includes a bolt extending through an orifice in the first radially extending portion radially outside of the axially extending portion to fix the clamping plate to the housing.

What is claimed is: 
     
         1 . A resolver assembly for an electric motor, comprising:
 a housing;   a resolver stator for an electric motor; and   a clamping plate comprising:
 a first radially extending portion fixed to the housing; 
 a second radially extending portion pressing the resolver stator towards the housing; and 
 an axially extending portion arranged axially between the first radially extending portion and the second radially extending portion. 
   
     
     
         2 . The resolver assembly of  claim 1  wherein the clamping plate is elastically deformed. 
     
     
         3 . The resolver assembly of  claim 1  further comprising a bolt extending through an orifice in the first radially extending portion radially outside of the axially extending portion to fix the clamping plate to the housing. 
     
     
         4 . The resolver assembly of  claim 1  wherein the clamping plate forms a complete ring surrounding an outer diameter of the resolver stator. 
     
     
         5 . The resolver assembly of  claim 1  wherein the first radially extending portion is an annular disk and the axially extending portion is a tab extending from the annular disk radially outside an outer diameter of the resolver stator. 
     
     
         6 . The resolver assembly of  claim 1  wherein the clamping plate comprises a semicircular portion connecting a distal end of the axially extending portion, opposite the first radially extending portion, to the second radially extending portion. 
     
     
         7 . The resolver assembly of  claim 1  wherein the resolver stator comprises a notch and the housing comprises a tab disposed in the notch for positioning the resolver stator relative to the housing. 
     
     
         8 . The resolver assembly of  claim 7  wherein the resolver stator is radially and circumferentially positioned by the tab in the notch. 
     
     
         9 . The resolver assembly of  claim 1  further comprising:
 an electric motor comprising a stator fixed to the housing and a rotor rotatable relative to the housing and the stator; and 
 a resolver rotor radially aligned with the resolver stator and fixed to the rotor for corotation. 
 
     
     
         10 . The resolver assembly of  claim 9  further comprising a bearing, wherein:
 the rotor comprises a rotor carrier; 
 the resolver rotor is fixed to the rotor carrier; and 
 the bearing radially positions the rotor carrier relative to the housing.