Hair dryer

Abstract

Provided is a hair dryer comprising: a cylindrical head housing; a heater module located inside the head housing; and a substrate module located in the rear direction of the heater module. The heater module comprises: a first heater case in a cylindrical shape; a plurality of first separators coupled to the outer peripheral surface of the first heater case at predetermined intervals; a first heating wire wound around the plurality of first separators; a plurality of second separators located between the plurality of first separators and coupled to the first heater case; and a second heating wire coupled to the first separators and the second separators.

1 . A hair dryer comprising:
 a head housing having a cylindrical shape;   a heater module disposed inside the head housing; and   a substrate module disposed on a rear side of the heater module,   wherein the heater module comprises:   a first heater case having a cylindrical shape;   a plurality of first separators spaced apart from each other at predetermined intervals on an outer circumferential surface of the first heater case;   a first heating wire wound around the plurality of first separators;   a plurality of second separators disposed between the plurality of first separators and coupled to the first heater case; and   a second heating wire coupled to the first separators and the second separators.   
     
     
         2 . The hair dryer of  claim 1 , wherein each of the first separators comprises a plurality of first grooves formed at an outer end thereof,
 wherein the first heating wire is disposed in the first grooves.   
     
     
         3 . The hair dryer of  claim 2 , wherein the first grooves of any one of the first separators are disposed at positions different from positions of the first grooves of a neighboring one of the first separators. 
     
     
         4 . The hair dryer of  claim 2 , wherein each of the first separators comprises:
 a plurality of second grooves disposed between the plurality of first grooves, the plurality of second grooves being formed at positions spaced further apart from the first heater case than the first grooves,   wherein the second heating wire is disposed in the second grooves.   
     
     
         5 . The hair dryer of  claim 1 , wherein each of the second separators comprises a third groove spaced apart from the first heater case to allow the first heating wire to extend therethrough. 
     
     
         6 . The hair dryer of  claim 5 , wherein each of the second separators comprises a plurality of fourth grooves formed at an outer end thereof,
 wherein the second heating wire is disposed in the fourth grooves.   
     
     
         7 . The hair dryer of  claim 1 , wherein the first heating wire and the second heating wire are connected in series,
 wherein the first heating wire has a start point positioned on a rear side of the first heater case and an end point positioned at a front of the first heater case,   wherein the end point of the first heating wire is connected in series with a start point of the second heating wire at the front of the first heater case, and   wherein an end point of the second heating wire is disposed on the rear side of the first heater case.   
     
     
         8 . The hair dryer of  claim 7 , further comprising:
 a first electrode disposed at the start point of the first heating wire and a second electrode disposed at the end point of the second heating wire,   wherein the first electrode and the second electrode are disposed on a rear surface of the first heater case,   wherein the first electrode and the second electrode are connected to the substrate module.   
     
     
         9 . The hair dryer of  claim 7 , further comprising:
 a bimetal and a fuse disposed between the end point of the first heating wire and the start point of the second heating wire.   
     
     
         10 . The hair dryer of  claim 1 , wherein the heater module further comprises:
 a second heater case having a cylindrical shape and arranged to cover an outer circumferential surface of the first heating wire and the second heating wire,   wherein an end of each of the second separators contacts an inner circumferential surface of the second heater case.   
     
     
         11 . The hair dryer of  claim 1 , further comprising:
 an ionizer disposed inside the first heater case.   
     
     
         12 . The hair dryer of  claim 1 , further comprising:
 a third heater case disposed on a front of the first heater case; and   a separator fixing portion formed on a circumference of the third heater case, the separator fixing portion being coupled with the first separators and the second separators.   
     
     
         13 . The hair dryer of  claim 1 , further comprising:
 a head frame inserted into a rear of the head housing in a forward direction, the heater module and the substrate module being mounted in the head frame; and   a cover frame coupled to a rear of the head frame to cover the rear of the head housing,   wherein the head frame comprises a coupling slot formed in an outer circumferential surface thereof and extending in a circumferential direction,   wherein the head housing comprises a coupling rib formed in an inner circumferential surface thereof and extending in a circumferential direction,   wherein the coupling rib is inserted into the coupling slot by inserting the head frame into the head housing from the rear side and rotating the head frame in a first direction.   
     
     
         14 . The hair dryer of  claim 3 , further comprising:
 a catch protrusion formed in the coupling slot; and   a catch groove formed in the coupling rib and coupled to the catch protrusion.   
     
     
         15 . The hair dryer of  claim 3 , wherein the head frame further comprises:
 a guide slope formed in front of the coupling slot at a position biased in a first direction, the guide slope comprising an inclined surface recessed toward a center while extending toward a rear side,   wherein, when the head frame is inserted into a rear surface of the head housing, the coupling rib moves along the guide slope.   
     
     
         16 . A hair dryer comprising:
 a cylindrical head housing having front and rear openings;   a head frame inserted into a rear of the head housing in a forward direction;   a heater module and a substrate module mounted in the head frame; and   a cover frame coupled to a rear of the head frame to cover the rear of the head housing,   wherein the head frame comprises a coupling slot formed in an outer circumferential surface thereof and extending in a circumferential direction,   wherein the head housing comprises a coupling rib formed in an inner circumferential surface thereof and extending in a circumferential direction,   wherein the coupling rib is inserted into the coupling slot by inserting the head frame into the head housing from the rear side and rotating the head frame in a first direction.   
     
     
         17 . The hair dryer of  claim 16 , further comprising:
 a catch protrusion formed in the coupling slot; and   a catch groove formed in the coupling rib and coupled to the catch protrusion.   
     
     
         18 . The hair dryer of  claim 16 , wherein the head frame further comprises:
 a guide slope formed in front of the coupling slot at a position biased in the first direction, the guide slope comprising an inclined surface recessed toward a center while extending toward a rear side,   wherein, when the head frame is inserted into a rear surface of the head housing, the coupling rib moves along the guide slope.   
     
     
         19 . The hair dryer of  claim 16 , wherein the head frame comprises:
 a heater frame formed on an outer circumferential surface of the heater module; and   a substrate frame formed on an outer circumferential surface of the substrate module,   wherein the heater frame and the substrate frame are coupled in a hooking manner,   wherein the heater frame comprises:   a hook bracket extending in a rearward direction; and   a frame hook formed at an end of the hook bracket and fastened to a frame hook groove formed in the substrate frame,   wherein the hook bracket defines a spacing between the heater module and the substrate module.   
     
     
         20 . The hair dryer of  claim 19 , further comprising:
 a connection hole formed in a lower portion of the head housing in front of the coupling rib to connect with a structure under the head housing;   a connecting frame disposed under and coupled to the connection hole; and   a button substrate coupled to an inner side of the connecting frame and having an upper end abutting a front lower end of the substrate frame.