Double-duct hot air guide structure and hair drier thereof

Abstract

The present disclosure relates to the technical field of electric hair driers, in particular to a double-duct hot air guide structure and a hair drier thereof. The double-duct hot air guide structure includes a shell, a heating module and a blowing module. The shell is provided with an outer sleeve-shaped body and an inner sleeve-shaped body mounted inside the outer sleeve-shaped body. A front end of the outer sleeve-shaped body is matched with a front end of the inner sleeve-shaped body through butting so that an inner air outlet inside the inner sleeve-shaped body correspondingly and an outer air outlet between the outer sleeve-shaped body and the inner sleeve-shaped body correspondingly are formed in a front end of the shell. The heating module is arranged between the outer sleeve-shaped body and the inner sleeve-shaped body.

What is claimed is: 
     
         1 . A double-duct hot air guide structure, comprising a shell, a heating module and a blowing module, wherein the shell is provided with an outer sleeve-shaped body and an inner sleeve-shaped body mounted inside the outer sleeve-shaped body, a front end of the outer sleeve-shaped body is matched with a front end of the inner sleeve-shaped body through butting so that an inner air outlet inside the inner sleeve-shaped body correspondingly and an outer air outlet between the outer sleeve-shaped body and the inner sleeve-shaped body correspondingly are formed in a front end of the shell, and the heating module is arranged between the outer sleeve-shaped body and the inner sleeve-shaped body;
 an air inlet is formed in a rear end of the outer sleeve-shaped body, an accommodating cabin taking the outer sleeve-shaped body as a wall surface is formed between the rear end of the outer sleeve-shaped body and a rear end of the inner sleeve-shaped body, the blowing module is mounted inside the accommodating cabin, a first fluid entering along the air inlet and then flowing out along the inner air outlet is formed inside the shell through the blowing module, and a second fluid entering along the air inlet and flowing out along the outer air outlet after passing through the heating module is also formed inside the shell through the blowing module.   
     
     
         2 . The double-duct hot air guide structure according to  claim 1 , wherein the inner sleeve-shaped body is provided with a first sleeve part at the rear end and a cambered first flared part expanding and extending outwards along a front end of the first sleeve part, and the inner air outlet is formed in one end, located at the first flared part, of the inner sleeve-shaped body. 
     
     
         3 . The double-duct hot air guide structure according to  claim 2 , wherein a plurality of arc-shaped strips uniformly distributed are arranged around an inner wall of the first flared part. 
     
     
         4 . The double-duct hot air guide structure according to  claim 1 , wherein the outer sleeve-shaped body comprises a second sleeve part at a front end and a third sleeve part arranged at a rear end of the second sleeve part, and the diameter of the second sleeve part is larger than that of the third sleeve part; wherein, an inclined second flared part expanding and extending outwards is formed at a front end of the third sleeve part, and the third sleeve part is connected with the second sleeve part through the second flared part. 
     
     
         5 . The double-duct hot air guide structure according to  claim 4 , wherein a buckle structure is arranged between the second flared part and the second sleeve part, and the second flared part and the second sleeve part are clamped and fixed through the buckle structure. 
     
     
         6 . The double-duct hot air guide structure according to  claim 4 , wherein a fixed slot is formed in the inner side of the second flared part circumferentially, a first air deflector seat is fixedly mounted on the second flared part through the fixed slot, the first air deflector seat comprises an outer ring part matched with the fixed slot, a fixed seat located inside the outer ring part, a plurality of first air deflectors arranged around the fixed seat circumferentially and integrally connected to the outer ring part, and an isolating ring between the fixed seat and the outer ring part circumferentially and integrally connected to the first air deflectors; wherein, the first air deflector seat is fixed inside the second flared part through the cooperation with the outer ring part and the fixed slot, the inner sleeve-shaped body is fixedly connected with the fixed seat, and the second flared part is isolated into inner and outer spaces by the isolating ring so as to correspond to the inner sleeve-shaped body and the outer sleeve-shaped body respectively. 
     
     
         7 . The double-duct hot air guide structure according to  claim 6 , wherein a plurality of second air deflectors towards an axis are formed along the inner side of the rear end of the inner sleeve-shaped body circumferentially, a connecting rod corresponding to an axis of the inner sleeve-shaped body is integrally formed at the rear end of the inner sleeve-shaped body through the second air deflectors, and a threaded butting structure is formed between the fixed seat and the connecting rod so that the inner sleeve-shaped body is in threaded connection with the first air deflector seat through the fixed seat and the connecting rod. 
     
     
         8 . The double-duct hot air guide structure according to  claim 6 , wherein a second air deflector seat is fixedly mounted along the inner side of the front end of the outer sleeve-shaped body, the outer sleeve-shaped body and the inner sleeve-shaped body are fixedly supported through the second air deflector seat, and the outer air outlet is formed in the second air deflector seat. 
     
     
         9 . The double-duct hot air guide structure according to  claim 1 , wherein a first heat insulating layer corresponding to the heating module is arranged on the inner side of the outer sleeve-shaped body, and a second heat insulating layer corresponding to the heating module is arranged on the outer side of the inner sleeve-shaped body. 
     
     
         10 . The double-duct hot air guide structure according to  claim 9 , wherein the heating module comprises at least one circle of heating film and radiating sleeves arranged on the inner and outer sides of the heating film respectively, and one surface, on the back of the heating film, of the radiating sleeve is of a fin-shaped structure; and when multiple circles of heating film are arranged, the multiple circles of heating film are arranged circumferentially from inside to outside, every two adjacent circles of heating film are butted through the radiating sleeves, and the butting radiating sleeves form a honeycomb-like radiating structure through the fin-shaped structure. 
     
     
         11 . A hair drier, applied to the double-duct hot air guide structure according to  claim 1 .