Motor interconnect device

Abstract

A fan assembly having a reduced dimension formed by several modifications is described. The fan assembly includes a stator having stator coils positioned within a recessed portion of a pillow that receives the motor. The stator may include wire connections positioned between adjacent stator coils and designed to terminate wires of the stator coils. The wire terminations may be on a protrusion or a post positioned between adjacent stator coils, or alternatively, the wire terminations may be disposed on protruding features of a bushing. The protrusion may be formed from an electrically conductive material and electrically connected to a motor control circuit via a flexible printed circuit. In some embodiments, the protrusion is part of an electrically neutral stator bushing having several pins. Also, a gap region between the bushing and a flange feature is designed to improve an adhesive joint.

What is claimed is: 
     
         1 . A fan assembly suitable for use in a computing system, the fan assembly comprising:
 a stator including a first stator pole and a second stator pole;   a coil wound around the first stator pole and the second stator pole to define a first stator coil and a second stator coil, the coil including a wire portion; and   a circuit assembly including a post positioned between the first stator coil and the second stator coil, the post having an electrically conductive region that receives the wire portion to electrically connect the first stator coil with the circuit assembly.   
     
     
         2 . The fan assembly of  claim 1 , further comprising a pillow having a recessed portion that receives a portion of the first stator coil. 
     
     
         3 . The fan assembly of  claim 2 , wherein the pillow further comprises an opening extending through the pillow, and wherein the circuit assembly extends through the opening to electrically couple with a component. 
     
     
         4 . The fan assembly of  claim 2 , wherein the circuit assembly comprises an extension that receives the post. 
     
     
         5 . The fan assembly of  claim 4 , wherein the post is fixedly coupled with the circuit assembly. 
     
     
         6 . The fan assembly of  claim 5 , wherein the post is soldered to the circuit assembly along a surface of the circuit assembly. 
     
     
         7 . The fan assembly of  claim 1 , wherein the post is characterized by an exterior region comprising an insulating material. 
     
     
         8 . The fan assembly of  claim 1 , wherein the post comprises copper or brass. 
     
     
         9 . A computing system fan assembly comprising:
 a stator pole;   a coil coupled about the stator pole;   a circuit board;   a post extending normal to the circuit board adjacent the coil; and   a conductive extension coupled between the coil and the post, wherein the conductive extension electrically couples the coil with the circuit board, and wherein the conductive extension is coupled with a surface of the post.   
     
     
         10 . The computing system fan assembly of  claim 9 , wherein the post is characterized by a cylindrical shape having a top surface and a bottom surface, and wherein the conductive extension is coupled with the post across the top surface. 
     
     
         11 . The computing system fan assembly of  claim 10 , wherein the post is coupled with the circuit board proximate the bottom surface. 
     
     
         12 . The computing system fan assembly of  claim 9 , wherein the circuit board comprises a first surface along which the post is coupled with solder or a conductive adhesive. 
     
     
         13 . The computing system fan assembly of  claim 9 , wherein the post is characterized by an exterior region comprising an insulating material. 
     
     
         14 . The computing system fan assembly of  claim 9 , further comprising a pillow defining a recessed portion within which the coil extends. 
     
     
         15 . A fan assembly suitable for use in a computing system, the fan assembly comprising:
 a stator including a first stator pole and a second stator pole;   a first stator coil extending about the first stator pole;   a second stator coil extending about the second stator pole;   a wire extending from one of the first stator pole or the second stator pole; and   a circuit assembly; and   a post extending normal to the circuit assembly between the first stator coil and the second stator coil, wherein the post comprises an electrically conductive region to which the wire is coupled.   
     
     
         16 . The fan assembly suitable for use in a computing system of  claim 15 , wherein the post couples with the circuit assembly proximate a first surface of the post. 
     
     
         17 . The fan assembly suitable for use in a computing system of  claim 16 , wherein the post is soldered with the circuit assembly at an intersection of the post and the circuit assembly. 
     
     
         18 . The fan assembly suitable for use in a computing system of  claim 16 , wherein the wire extends to and couples along second surface of the post opposite the first surface. 
     
     
         19 . The fan assembly suitable for use in a computing system of  claim 15 , further comprising a pillow defining an aperture through which the circuit assembly extends. 
     
     
         20 . The fan assembly suitable for use in a computing system of  claim 15 , wherein the circuit assembly comprises an arcuate extension along which the post is coupled.