Air mover circuitry and compliant member

Abstract

A blower (2) comprising: (a) a rotor (6) including: (i) a magnet (12) and (ii) a shaft (16) including a recess on an end of the shaft (16); (b) a stator (20) that at least partially extends within the rotor (6); and (c) a compliant member (26); wherein the compliant member (26) extends into the recess and the compliant member (26) is compliant so that the compliant member (26) allows the shaft (16) to move.

1 ) A blower comprising:
 a. a rotor including:
 i. a magnet and 
 ii. a shaft including a recess on an end of the shaft; 
   b. a stator that at least partially extends within the rotor; and   c. a compliant member,   wherein the compliant member extends into the recess and the compliant member is flexible so that the compliant member allows the shaft to move, at least partially moves with the shaft, or both.   
     
     
         2 ) The blower of  claim 1 , wherein the compliant member is at least partially made of an elastomeric material and/or include an elastomer. 
     
     
         3 ) The blower of  claim 1 , wherein the compliant member has a Shore hardness of about 20 A to about 100 A when measured according to ASTM D2240. 
     
     
         4 ) The blower of  claim 1 , wherein the compliant member allows the shaft to move axially along the axis of the shaft. 
     
     
         5 ) The blower of  claim 1 , wherein the compliant member allows the shaft to move so that vibrations, noise, harshness, or a combination thereof are prevented from passing from the shaft to the impeller, the stator, a blower housing, or a combination thereof. 
     
     
         6 ) The blower of  claim 1 , wherein the compliant member substantially reduces and/or eliminates acceleration of the shaft axially so that a force between the shaft, the compliant member, or both and an adjacent blower component is substantially reduced and/or eliminated. 
     
     
         7 ) The blower of  claim 6 , wherein deceleration of the of the shaft, the compliant member, or both is exponential as the shaft, the compliant member, or both approach the adjacent blower component so that noise resulting from contact between the compliant member, the shaft, or both is not audible to a user, is eliminated, or both 
     
     
         8 ) A blower comprising:
 a. a rotor,   b. a stator, and   c. a printed circuit board including:
 i. one or more electrical feeds and 
 ii. a plurality of circuitry; 
 wherein substantially all of the plurality of circuitry is located in a region of the printed circuit board that includes the one or more electrical feeds. 
   
     
     
         9 ) The blower of  claim 8 , wherein the printed circuit board is oblong in shape. 
     
     
         10 ) The blower of  claim 9 , wherein the printed circuit board includes a through hole and the through hole is located off center so that a plane bisecting the through hole creates a short side on one side of the plane and a long side on another side of the plane. 
     
     
         11 ) The blower of  claim 10 , wherein the short side is substantially free of the plurality of circuitry; all of the plurality of circuitry is located on the long side, or both. 
     
     
         12 ) The blower of  claim 10 , wherein the one or more electrical feed are located on the long side of the printed circuit board. 
     
     
         13 ) The blower of  claim 8 , wherein the printed circuit board is oval. 
     
     
         14 ) The blower of  claim 8 , wherein the rotor is connected to an impeller and the printed circuit board fits entirely within an axial footprint of the impeller. 
     
     
         15 ) The blower of  claim 8 , wherein the plurality of circuitry includes: a plurality of hall effect sensors, a plurality of winding termination points, and one or more motor driver, and the motor driver is located substantially the same distance from the plurality of hall effect sensors as from the plurality of winding termination points. 
     
     
         16 ) The blower of  claim 15 , wherein traces extend from the motor driver to the plurality of hall effect sensors and traces extend from the motor driver to the plurality of winding termination points and the traces extending to the plurality of hall effect sensors are substantially the same length as the traces extending to the plurality of winding termination points. 
     
     
         17 ) The blower of  claim 8 , wherein the circuitry is located on the printed circuit board so that the circuitry forms low current loops. 
     
     
         18 ) The blower of  claim 8 , wherein the plurality of circuitry include high frequency circuitry and a length of traces extending between the high frequency circuitry and the one or more electrical feeds is shorter than a length of the traces and all other of the plurality of circuitry, and wherein the high frequency circuitry has a frequency of about 8 MHz or more, is a microprocessor, or both.