High speed noise reduction hair dryer

Abstract

A high-speed noise reduction hair dryer includes a hair dryer housing, which is provided with an air inlet and an air outlet; a handle housing; a high-speed motor, which is connected to a guide blade, and the high-speed motor drives the guide blade to rotate; a noise reduction guide mechanism, forming an internal air duct; a circuit board assembly; the noise reduction guide mechanism includes an air intake grille, a guide bracket, a honeycomb air intake bracket, a motor bracket, an air duct bracket and a concentrated air outlet bracket from the air inlet to the air outlet, the guide bracket and the honeycomb air intake bracket overlap each other, and the projections of the front convex part and the rear concave part in the vertical direction partially overlap, thereby forming an S-shaped rotary air duct.

1 . A high-speed noise reduction hair dryer, comprising:
 a fan housing is provided with an air inlet at one end and an air outlet at the other end;   a handle housing is mounted on the lower end of the hair dryer housing, and a button assembly is provided on the handle housing;   a high-speed motor is connected to a guide fan blade, and the high-speed motor drives the guide fan blade to rotate, so that the guide fan blade draws in external air through the air inlet and then blows it out through the air outlet;   a noise reduction and flow guiding mechanism, which is arranged in the wind cylinder housing, the noise reduction and flow guiding mechanism forming an internal air duct, and the air inlet is connected to the air outlet through the internal air duct;   a circuit board assembly which is electrically connected to electrical components in the hair dryer;   characterized in that the noise reduction and flow guiding mechanism comprises, in sequence from the air inlet to the air outlet:   an air intake grille having a plurality of air intake holes;   a flow guide bracket, comprising an inner circular area and an outer ring area, wherein an air intake area is formed between the inner circular area and the outer ring area, wherein a plurality of first dividing ribs are arranged circumferentially in the air intake area, and independent transverse air intake wind tunnels are formed between adjacent first dividing ribs; an edge of the inner circular area protrudes forward to form a front convex portion, and a plurality of second dividing ribs are arranged at the front end of the front convex portion, and independent vertical air intake wind tunnels are formed between adjacent second dividing ribs;   a honeycomb air inlet support, wherein a central region thereof protrudes toward the air outlet to form a rear concave portion, a honeycomb hole is provided on the rear concave portion, and an outer region of the honeycomb hole forms a front-convex closed portion;   the air guide bracket and the honeycomb air intake bracket overlap each other, and the projections of the front convex portion and the rear concave portion in the vertical direction partially overlap, thereby forming an S-shaped rotary air duct;   a motor bracket connected to the front end of the rear recess and in communication with the honeycomb hole, wherein the high-speed motor is installed in the motor bracket;   an air duct support is located at the front end of the motor support and at least partially extends into the motor support, and an arc-shaped air duct that spreads from the inside to the outside is formed between the air duct support and the motor support;   the converging air outlet support is arranged between the air duct support and the air outlet, and has a converging air duct that is larger at the rear and smaller at the front, and a heating component is arranged in the converging air duct.   
     
     
         2 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that: the high-speed motor is arranged horizontally, and the air inlet, the high-speed motor, the internal air duct and the air outlet are arranged in the same direction. 
     
     
         3 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that: the motor bracket comprises a small-diameter section and a flow expansion section;
 the high-speed motor is installed in the small-diameter section, and a first shock-absorbing rubber pad is provided between the high-speed motor and the inner wall of the small-diameter section;   the air duct support at least partially extends into the flow expansion section.   
     
     
         4 . The high-speed noise reduction hair dryer according to  claim 3 , characterized in that: the air duct support comprises a central arc air guide portion, and a plurality of wind-fixing wings evenly distributed on the central arc air guide portion, and the outer ends of the wind-fixing wings extend out of the central arc air guide portion and extend into the converging air outlet support;
 at least two adjacent fixed airfoils are provided with a connected mounting portion, a slot is provided on the mounting portion, a buckle is provided on the inner wall of the diffuser section, and the buckle is embedded in the slot, so that the air duct bracket and the motor bracket are assembled together.   
     
     
         5 . The high-speed noise reduction hair dryer according to  claim 3 , characterized in that: the expansion section of the motor bracket further extends backward to form a circuit board bracket section, and an electric control chamber is formed between the circuit board bracket section and the honeycomb air intake bracket, and the circuit board assembly is arranged in the electric control chamber, and a first wire hole connected to the handle shell is provided below the electric control chamber, so that a first cable is passed through the first wire hole to electrically connect the circuit board assembly with the button assembly. 
     
     
         6 . The high-speed noise reduction hair dryer according to  claim 5 , characterized in that: at least one return air hole is provided on the expansion section of the motor bracket, and the return air hole is connected to the electric control chamber;
 the edge of the return air hole extends inwardly to form a guide portion, and the guide portion at least partially extends into the arc-shaped air duct.   
     
     
         7 . The high-speed noise reduction hair dryer according to  claim 4 , characterized in that the small-diameter section of the motor bracket includes a first body and a second body, the first body and the diffuser section are integrally formed, and the second body is independently formed and detachably connected to the first body. 
     
     
         8 . The high-speed noise reduction hair dryer according to  claim 4 , characterized in that: a plurality of positioning ribs are arranged on the outer wall of the small-diameter section, and a plurality of positioning grooves are arranged on the circuit board assembly, and the positioning ribs can be inserted into the positioning grooves to assemble the circuit board assembly on the small-diameter section of the motor bracket. 
     
     
         9 . The high-speed noise reduction hair dryer according to  claim 5 , characterized in that: a display screen assembly is provided at the rear end of the hair cylinder shell, and a second wire hole is opened on the honeycomb air inlet bracket, so that a second cable is passed through the second wire hole to electrically connect the circuit board assembly with the display screen assembly. 
     
     
         10 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that: a heat insulation bracket is arranged between the concentrated air outlet bracket and the air duct bracket, and a heat insulation chamber is formed between the heat insulation bracket and the front end of the concentrated air outlet bracket, and a negative ion generator is arranged in the heat insulation chamber, and the negative ion generator is electrically connected to the circuit board assembly through a third cable, and a release end of the negative ion generator extends out of the heat insulation chamber and extends into the concentrated air duct. 
     
     
         11 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that: the outer edge of the closing portion of the honeycomb air inlet bracket is folded backward to form an edging portion, and the edging portion surrounds the outer ring area of the guide bracket, and a second shock-absorbing rubber pad is provided between the edging portion and the inner wall of the hair cylinder housing. 
     
     
         12 . The high-speed noise reduction hair dryer according to  claim 4 , characterized in that a sealing ring is provided between the rear recess of the honeycomb air inlet bracket and the small-diameter section of the motor bracket. 
     
     
         13 . The high-speed noise reduction hair dryer according to  claim 4 , characterized in that: the heating component has a plurality of heating plate groups, and the heating plate groups correspond one-to-one to the wind-fixing wings. 
     
     
         14 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that the lower end of the hair cylinder housing extends downward to form a handle inner housing portion, and the handle inner housing portion is inserted into the handle housing. 
     
     
         15 . The high-speed noise reduction hair dryer according to  claim 1 , characterized in that the button assembly is electrically connected to an external power source via a fourth cable.