Structure of fan devices for leading out wires

Abstract

A lead wire is led out to a fan outer frame portion side through a lead wire retaining portion that is provided to a motor support portion of a housing that fixes a fan motor so as to protrude to a fan outer frame portion side or is provided to the fan outer frame portion of the housing so as to protrude to the motor support portion side. The lead wire retaining portion is positioned between neighboring support beams for fixing the motor support portion to the fan outer frame portion.

1 . A fan device, comprising: 
 a fan motor including a rotor portion and a stator portion, the rotor being rotated around a rotation axis of the motor by a power supplied to the stator from an external power source via lead wires;    an impeller fixed to the rotor portion so as to generate an air flow when the motor rotates; and    a housing including a fan outer frame portion, a disk-like motor support portion extending outward in the rotation direction from a substantial center that is on the rotation axis of the motor so as to fix the fan motor, at least three support beams for connecting the motor support portion fixedly to the fan outer frame portion, a lead wire retaining portion for retaining the lead wires, the lead wire retaining portion including an arm portion and a lead wire retaining recess, one end of the arm portion fixed to the motor support portion, the lead wire retaining recess located on the other end of the arm portion, and the lead wires from the fan motor being led out of the fan device via the lead wire retaining portion and the fan outer frame portion.    
   
   
       2 . The fan device as set forth in  claim 1 , wherein the arm portion is made up of at least one support rod.  
   
   
       3 . The fan device as set forth in  claim 1 , wherein a printed circuit board for controlling the fan motor is fixed to the motor support portion, and the lead wires are connected to the printed circuit board and are led out through the lead wire retaining portion and the fan outer frame portion to the outside of the fan device.  
   
   
       4 . The fan device as set forth in  claim 1 , wherein the housing is made up of a material containing a synthetic resin mainly by injection molding.  
   
   
       5 . The fan device as set forth in  claim 4 , wherein the housing has four support beams, the fan outer frame portion comprises a fan outer frame cylinder portion that encloses the fan motor and four fixing end plate portions formed on an outer circumference surface of the fan outer frame cylinder portion so as to make the fan outer frame portion form a square shape in plan view, one end of each of the support beams is linked onto a substantial center of neighboring two corners of the fixing end plate portion.  
   
   
       6 . The fan device as set forth in  claim 5 , wherein the fixing end plate portion of the housing that is positioned in the direction where the lead wire retaining portion extends includes a groove portion for retaining the lead wires, and the lead wires are led out via the groove portion to the outside of the fan device.  
   
   
       7 . The fan device as set forth in  claim 6 , wherein a printed circuit board for controlling the fan motor is fixed to the motor support portion, and the lead wires are connected to the printed circuit board and are led out through the lead wire retaining portion and the groove portion to the outside of the fan device.  
   
   
       8 . A fan device, comprising: 
 a fan motor including a rotor portion and a stator portion, the rotor being rotated around a rotation axis of the motor by a power supplied to the stator from an external power source via lead wires;    an impeller fixed to the rotor portion so as to generate an air flow when the motor rotates; and    a housing including a fan outer frame portion, a disk-like motor support portion extending outward in the rotation direction from a substantial center that is on the rotation axis of the motor so as to fix the fan motor, at least three support beams for connecting the motor support portion fixedly to the fan outer frame portion, a lead wire retaining portion for retaining the lead wires, the lead wire retaining portion including an arm portion and a lead wire retaining recess, one end of the arm portion being fixed to the fan outer frame portion, the lead wire retaining recess located on the other end of the arm portion, and the lead wire from the fan motor being led out of the fan device via the lead wire retaining portion and the fan outer frame portion.    
   
   
       9 . The fan device as set forth in  claim 8 , wherein the arm portion is made up of at least one support rod.  
   
   
       10 . The fan device as set forth in  claim 8 , wherein a printed circuit board for controlling the fan motor is fixed to the motor support portion, and the lead wires are connected to the printed circuit board and are led out through the lead wire retaining portion and the fan outer frame portion to the outside of the fan device.  
   
   
       11 . The fan device as set forth in  claim 8 , wherein the housing is made up of a material containing a synthetic resin mainly by injection molding.  
   
   
       12 . The fan device as set forth in  claim 11 , wherein the housing has four support beams, the fan outer frame portion comprises a fan outer frame cylinder portion that encloses the fan motor and four fixing end plate portions formed on an outer circumference surface of the fan outer frame cylinder portion so as to make the fan outer frame portion form a square shape in plan view, One end of each of the support beams is linked onto a substantial center of neighboring two corners of the fixing end plate portion.  
   
   
       13 . The fan device as set forth in  claim 12 , wherein the fixing end plate portion of the housing that is positioned in the direction where the lead wire retaining portion extends includes a groove portion for retaining the lead wires, and the lead wires are led out via the groove portion to the outside of the fan device.  
   
   
       14 . The fan device as set forth in  claim 13 , wherein a printed circuit board for controlling the fan motor is fixed to the motor support portion, and the lead wire is connected to the printed circuit board and is led out through the lead wire retaining portion and the groove portion to the outside of the fan device.