Handheld hair dryer

Abstract

The present invention provides a handheld hair dryer, comprising a main body and a handle, wherein the handle is provided with a fluid inlet, and the main body is provided with a fluid outlet, wherein the fluid inlet and the fluid outlet are connected to form a fluid channel, wherein the main body and the handle are detachably connected, wherein the main body comprises a main body shell, wherein the main body shell has a fluid turning port and a main body connecting portion protruding downward along the edge of the fluid turning port, wherein the fluid inlet and the fluid outlet are both connected to the fluid turning port, and wherein the handle comprises a handle inner shell, wherein the handle inner shell comprises a detachably connected inner front wall and an inner rear wall, wherein at least one of the inner front wall and the inner rear wall is detachably connected to the main body connecting portion. The present invention adopts a setting of detachably connecting the main body and the handle, simplifies the product structure, reduces the mold manufacturing cost, avoids the main body and the handle from being scrapped simultaneously due to injection molding problems during the molding process, and saves resources. At the same time, the present invention is easy to install and disassemble, and is convenient for repair and maintenance. The assembly of the main body shell and the handle inner shell is more convenient, thereby improving the assembly efficiency and reducing the production cost of the enterprise.

Description

Technical Field

[0001] The invention relates to a handheld appliance, in particular to a handheld hair dryer. Background Art

[0002] The basic principle of a hair dryer is to sweep the gas inside the body, and after adjusting the temperature and speed, it is used for blowing, drying or dust removal. The traditional handheld hair dryer is mainly composed of a main body and a handle. The handle and the main body are integrally injection molded. Such a structure is too complicated and the mold manufacturing cost is high. During the molding process, the entire part is prone to local shrinkage, deformation and other injection molding problems, resulting in the scrapping of the entire part, resulting in a waste of resources. At the same time, it is not easy to install and disassemble, and it is not convenient for maintenance. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a handheld hair dryer, which adopts a setting in which the main body and the handle are detachably connected, simplifies the product structure, reduces the mold manufacturing cost, avoids the main body and the handle being scrapped at the same time due to injection molding problems during the molding process, saves resources, and is easy to install and disassemble, and convenient for repair and maintenance.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A handheld hair dryer comprises a main body and a handle, wherein the handle is provided with a fluid inlet, the main body is provided with a fluid outlet, the fluid inlet and the fluid outlet are connected to form a fluid channel, and the main body and the handle are detachably connected.

[0006] As a preferred embodiment, the main body includes a main body shell, the main body shell has a fluid diverting port and a main body connecting portion protruding downward along the edge of the fluid diverting port, the fluid inlet and the fluid outlet are both connected to the fluid diverting port, and the handle includes a handle inner shell, the handle inner shell includes a detachably connected inner front wall and an inner rear wall, and at least one of the inner front wall and the inner rear wall is detachably connected to the main body connecting portion.

[0007] As a preferred embodiment, the main body connection part includes a docking plate, a front side of the docking plate is provided with an alignment groove, the upper end of the inner front wall is embedded in the alignment groove, an alignment notch is formed between the rear side of the docking plate and the fluid diverter port, the upper end of the inner rear wall is embedded in the alignment notch, the inner front wall is provided with a screw column, the inner rear wall is provided with a connecting hole corresponding to the screw column, the docking plate is provided with an alignment hole adapted to the screw column, and the alignment hole is connected to the alignment notch.

[0008] As a preferred solution, a surface of the docking plate facing the inner rear wall is provided with a guide ridge, and the inner rear wall is provided with a guide groove corresponding to the guide ridge.

[0009] As a preferred embodiment, the lower end of the guide ridge is connected to the lower surface of the docking plate, the inner side of the upper end of the guide ridge has an inwardly extending arcuate guide surface, and the upper end of the inner side wall of the guide groove is provided with an arcuate pressing surface corresponding to the arcuate guide surface.

[0010] As a preferred solution, a reinforcing protrusion is formed on the outer side of the bottom of the screw column, and a yielding groove corresponding to the reinforcing protrusion is provided on the alignment groove.

[0011] As a preferred solution, the lower end of the alignment groove passes downwardly out of the lower surface of the docking plate.

[0012] As a preferred solution, a clamping block is provided on the inner rear wall, and a clamping hole corresponding to the clamping block is provided on the inner front wall.

[0013] As a preferred solution, an air outlet guide, a heater and a main control circuit board are sequentially arranged in the main body shell, a rear cover is arranged at the rear end of the main body shell, and the fluid outlet is arranged on the air outlet guide.

[0014] As a preferred solution, a switch is provided on the handle, a fan assembly is provided in the fluid channel, and the fan assembly is located on the handle. The fan assembly includes a motor and fan blades driven to rotate by the motor.

[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, by setting the main body and the handle to be detachably connected, the product structure is simplified, the mold manufacturing cost is reduced, and the main body and the handle are prevented from being scrapped simultaneously due to injection molding problems during the molding process, thereby saving resources. At the same time, it is easy to install and disassemble, and convenient for maintenance; by setting a docking plate on the main body shell, and setting alignment grooves and alignment notches on the front and back sides of the docking plate, the handle inner shell is set as an inner front wall and an inner rear wall that can be detachably connected, the inner front wall is set with a screw column, the inner rear wall is set with a connecting hole, and the docking plate is set with an alignment hole. When assembling, the screw column is inserted along the The alignment hole is inserted to make the upper end of the inner front wall fit into the alignment groove, and the upper end of the inner rear wall is directly embedded in the alignment notch, and then locked with screws, so that the assembly of the main body shell and the handle inner shell is more convenient, the assembly efficiency is improved, and the production cost of the enterprise is reduced; by providing a guide convex strip on the surface of the docking plate facing the inner rear wall, and providing a guide groove on the inner rear wall, the upper end of the inner rear wall is convenient to slide quickly into the alignment notch after alignment through the guiding effect, thereby further improving the assembly efficiency; by forming a reinforcing convex block on the outer side of the bottom of the screw column, the strength of the connection between the screw column and the inner front wall is enhanced, thereby avoiding the screw column from being easily broken during the assembly process.

[0016] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the assembly structure of an embodiment of the present invention;

[0018] Figure 2 It is a main body exploded schematic diagram of an embodiment of the present invention;

[0019] Figure 3 is an exploded schematic diagram of a handle according to an embodiment of the present invention;

[0020] Figure 4 It is a front view of an embodiment of the present invention;

[0021] Figure 5 yes Figure 4 Schematic diagram of the cross section at AA in the middle;

[0022] Figure 6 It is an exploded schematic diagram of the main body shell, the inner front wall and the inner rear wall of an embodiment of the present invention;

[0023] Figure 7 It is a schematic structural diagram of a main body shell of an embodiment of the present invention;

[0024] Figure 8 is an exploded schematic diagram of the inner shell of the handle of an embodiment of the present invention;

[0025] Fig. 9 is a cross-sectional schematic diagram of an air outlet guide member according to an embodiment of the present invention;

[0026] Fig.10 Schematic diagram of the structure of the air outlet guide member according to an embodiment of the present invention;

[0027] Fig.11 Schematic diagram of the structure of a heater according to an embodiment of the present invention;

[0028] Fig.12 is a schematic diagram of the circuit board bracket structure of an embodiment of the present invention;

[0029] Fig.13 It is a schematic diagram of the circuit board bracket and the main control circuit board of an embodiment of the present invention;

[0030] Fig.14 is a schematic cross-sectional view of a rear cover of an embodiment of the present invention;

[0031] Fig.15 It is a schematic diagram of the assembly of the electric wire and the inner shell of the handle according to an embodiment of the present invention;

[0032] Fig.16 is an exploded schematic diagram of an extension portion of an embodiment of the present invention;

[0033] Fig.17 It is a schematic diagram of the assembly of the wire, switch and handle inner shell of an embodiment of the present invention;

[0034] Fig.18 It is an exploded schematic diagram of the switch and the inner housing of the handle according to an embodiment of the present invention;

[0035] Fig.19 yes Fig.18 A partial enlarged schematic diagram of part B;

[0036] Fig. 20 It is a schematic diagram of the structure of the handle housing of an embodiment of the present invention;

[0037] Fig.21 is an exploded schematic diagram of an extension portion, an outer filter screen and an inner filter screen according to an embodiment of the present invention;

[0038] Fig. 22 Schematic diagram of the internal structure of the outer filter screen according to an embodiment of the present invention;

[0039] Fig.23 It is a schematic diagram of the positioning frame structure of an embodiment of the present invention;

[0040] Fig.24 It is a schematic diagram of the structure of the inner shell of the handle of an embodiment of the present invention;

[0041] Fig.25 is a schematic diagram of an exploded view of the inner shell of the handle of an embodiment of the present invention from another perspective;

[0042] Fig.26 is an exploded schematic diagram of a tuyere according to an embodiment of the present invention;

[0043] Fig. 27 This is a front view of the air nozzle of an embodiment of the present invention;

[0044] Fig.28 yes Fig. 27 Schematic diagram of the cross section at CC;

[0045] Fig.29 It is a left side view of the air nozzle of an embodiment of the present invention;

[0046] Fig.30 yes Fig.29 Schematic diagram of the cross section at DD in the middle.

[0047] Description of the accompanying drawings:

[0048] 10-main body shell; 12-locking groove; 13-first clamping block;

[0049] 14-second annular groove; 20-air outlet guide; 21-inner air guide plate; 22-outer air guide plate;

[0050] 23-arc surface; 24-inclined straight surface; 25-straight opening; 26-first sealing ring;

[0051] 27-first annular groove; 28-first connecting rib; 29-locking convex strip; 30-first screw column;

[0052] 31-second connecting rib; 32-first foolproof block; 33-bell mouth; 34-positioning plate;

[0053] 35-positioning step; 36-first wind guide plane; 37-second wind guide plane; d-width;

[0054] h-depth; 40-heater; 41-pipe; 42-blade;

[0055] 43-fixing plate; 44-first connecting hole; 45-first foolproof groove; 46-second screw column;

[0056] 47-third connecting rib; 48-second foolproof block; 50-circuit board bracket; 51-cylinder;

[0057] 52-front end plate; 53-second connecting hole; 54-second foolproof groove; 55-first annular step;

[0058] 56-base plate; 57-accommodating cavity; 58-third screw column; 59-positioning column;

[0059] 60-guide plate; 61-main control circuit board; 62-third connecting hole; 63-first positioning hole;

[0060] 70-rear cover; 71-accommodating groove; 72-rear end plate; 73-annular side plate;

[0061] 74-light-transmitting area; 75-fourth screw column; 76-third fool-proof block; 77-annular connecting plate;

[0062] 78-ear plate; 79-first clamping hole; 80-second sealing ring; 81-tail light circuit board;

[0063] 82-LED lamp; 83-fourth connecting hole; 84-third foolproof slot;

[0064] 90-main body; 91-fluid outlet; 100-handle; 101-fluid inlet;

[0065] 102-fan assembly; 103-handle housing; 104-guide rib; 105-first mounting hole;

[0066] 106-shift block clearance hole; 107-button clearance hole; 108-handle inner shell; 109-guide groove;

[0067] 110-first screw hole; 111-inner front wall; 112-inner rear wall; 113-limiting column;

[0068] 114-clip opening; 115-clip plate; 116-extension portion; 117-left extension portion;

[0069] 118-right extension; 119-first forearm; 120-second forearm; 121-first rear arm;

[0070] 122-second rear arm; 123-wire opening; 124-first extrusion block; 125-second extrusion block;

[0071] 126-cable clamping hole; 127-cable distribution block; 128-cable distribution slot; 129-cable through slot;

[0072] 130-block protrusion; 131-cable clamping area; 132-power line; 140-installation platform;

[0073] 141 - mounting plate; 142 - first partition plate; 143 - second partition plate; 144 - third partition plate;

[0074] 145 - first installation slot; 146 - second installation slot; 147 - third installation slot; 148 - first clearance slot;

[0075] 149-second clearance groove; 150-line opening; 151-line notch; 152-first limit block;

[0076] 153-positioning hole; 154-second screw hole; 155-switch cover; 156-slide cap;

[0077] 157-button cap; 158-second mounting hole; 159-slide switch; 160-slide switch body;

[0078] 161-shift block; 162-first conductive sheet; 163-second conductive sheet; 164-button switch;

[0079] 165-PCB board; 166-button; 167-first limit slot; 170-inner front cavity;

[0080] 171-inner rear cavity; 172-positioning groove; 173-positioning strip; 174-second limiting groove;

[0081] 175-positioning protrusion; 176-positioning frame; 177-allowing through hole; 178-second limiting block;

[0082] 179-honeycomb plate; 180-honeycomb hole; 181-first positioning notch; 190-first magnetic component;

[0083] 191 - third limiting groove; 192 - third screw hole; 193 - second positioning notch; 194 - embedding hole;

[0084] 195-opening; 200-external filter; 201-air inlet; 202-bottom end plate;

[0085] 203-positioning protrusion; 204-positioning groove; 205-second magnetic component; 206-positioning through hole;

[0086] 207-inner filter bracket; 208-upper ring; 209-lower ring; 210-connecting arm;

[0087] 211-positioning convex strip; 212-third limiting block; 213-third mounting hole; 214-inner filter;

[0088] 215-side wall; 220-front inlet; 221-rear inlet; 222-front air guide slot;

[0089] 223-rear air guide slot; 224-fourth partition plate; 225-fourth screw hole; 226-fourth mounting hole;

[0090] 227-limiting notch; 228-limiting protrusion;

[0091] 300-main body connection part; 301-fluid diversion port; 302-butt plate; 303-alignment slot;

[0092] 304-alignment hole; 305-allowance groove; 306-alignment notch; 307-guide ridge;

[0093] 308-arc-shaped guide surface; 309-limiting groove; 310-fifth screw column; 311-reinforcement protrusion;

[0094] 312 - second clamping hole; 313 - fifth connecting hole; 314 - guide groove; 315 - arc-shaped pressing surface;

[0095] 316-second card block;

[0096] 400-air nozzle; 401-outer air nozzle shell; 402-horn-shaped receiving cavity; 403-flat receiving cavity;

[0097] 404-locking block; 405-inner air nozzle shell; 406-horn-shaped air inlet cavity; 407-first air inlet cavity;

[0098] 408 - second air inlet cavity; 409 - flat air outlet cavity; 410 - air inlet; 411 - air outlet;

[0099] 412- oblique extension plate; 413- fifth partition plate; 414- sixth screw column; 415- locking slot;

[0100] 416-annular mounting groove; 417-baffle; 418-circular plate body; 419-annular retaining edge;

[0101] 420 - sixth connecting hole; 421 - fourth limiting groove; 422 - annular magnet; 423 - iron ring. DETAILED DESCRIPTION

[0102] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be constructed and operated in specific directions. Therefore, they should not be understood as limitations on the present invention.

[0103] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] like Figure 1-30 As shown, a handheld hair dryer includes a main body 90 and a handle 100, wherein the handle 100 is provided with a fluid inlet 101, and the main body 90 is provided with a fluid outlet 91, wherein the fluid inlet 101 is connected with the fluid outlet 91 to form a fluid channel, wherein the main body 90 and the handle 100 are detachably connected, wherein the handle 100 includes a handle inner shell 108 and a handle outer shell 103 sleeved on the outer side of the handle inner shell 108, wherein the fluid inlet 101 is located on the lower end surface of the handle inner shell 108, wherein the fluid inlet 101 is an inlet in the axial direction of the handle 100, and wherein the fluid channel A fan assembly 102 is provided inside, and the fan assembly 102 is located inside the handle 100, the fan assembly 102 includes fan blades and a motor for driving the fan blades to rotate, the handle inner shell 108 includes an inner front wall 111 and an inner rear wall 112 that are detachably connected, the outer surface of the inner front wall 111 is provided with a guide groove 109, the inner surface of the handle outer shell 103 is provided with a guide rib 104 corresponding to the guide groove 109, the lower end of the handle inner shell 108 is provided with a first screw hole 110, and the handle outer shell 103 is provided with a first mounting hole 105 corresponding to the first screw hole 110.

[0105] like Figure 6-8 As shown, the main body 90 includes a main body shell 10, the lower end of the main body shell 10 has a fluid diversion port 301 and a main body connection portion 300 protruding downward along the edge of the fluid diversion port 301, at least one of the inner front wall 111 and the inner rear wall 112 is detachably connected to the main body connection portion 300, and the main body connection portion 300 includes a docking plate 302, and the front side of the docking plate 302 is provided with a positioning groove 303, and the lower end of the positioning groove 303 passes through the docking plate 302 downward. The lower surface of the docking plate 302 is provided with a positioning notch 306 between the rear side of the docking plate 302 and the fluid diverting port 301. The upper end of the inner front wall 111 is embedded in the positioning notch 303. The inner surface of the upper end of the inner front wall 111 is provided with a limiting groove 309 corresponding to the docking plate 302. The upper end of the inner rear wall 112 is embedded in the positioning notch 306. The inner front wall 111 is provided with a fifth screw column 310. The outer side of the bottom of the fifth screw column 310 is formed with a reinforcing protrusion 310. 1, the alignment groove 303 is provided with a recess 305 corresponding to the reinforcing protrusion 311, the inner rear wall 112 is provided with a fifth connecting hole 313 corresponding to the fifth screw column 310, the alignment groove 303 is provided with an alignment hole 304 adapted to the fifth screw column 310, the alignment hole 304 is connected to the alignment notch 306, the surface of the docking plate 302 facing the inner rear wall 112 is provided with a guide convex strip 307, the inner rear wall 112 is provided with a guide convex strip 308, and the inner rear wall 112 is provided with a fifth connecting hole 313 corresponding to the fifth screw column 310. The convex strip 307 corresponds to a guide groove 314, the lower end of which is connected to the lower surface of the docking plate 302, the inner side of the upper end of the guide convex strip 307 has an inwardly extending arc-shaped guide surface 308, the upper end of the inner side wall of the guide groove 314 is provided with an arc-shaped pressing surface 315 corresponding to the arc-shaped guide surface 308, the inner rear wall 112 is provided with a second clamping block 316, and the inner front wall 111 is provided with a second clamping hole 312 corresponding to the second clamping block 316.

[0106] like Figure 1-5 As shown, the main body shell 10 is provided with an air outlet guide 20, a heater 40 and a main control circuit board 61 in sequence, the heater 40 is connected to the air outlet guide 20, the main control circuit board 61 is installed on the heater 40 through a circuit board bracket 50, a rear cover 70 is provided at the rear end of the main body shell 10, a fluid inlet 101 is provided on the handle 100, a fluid outlet 91 is provided on the main body shell 10, a fluid channel is formed between the fluid inlet 101 and the fluid outlet 91, a fan assembly 102 is provided in the fluid channel, and the fan assembly 102 is located in the handle 100, and the fan assembly 102 includes fan blades and a motor for driving the fan blades to rotate.

[0107] like Figure 7 , Fig. 9 and Fig.10As shown, the air outlet guide 20 includes an inner air guide plate 21 and an outer air guide plate 22 arranged on the periphery of the inner air guide plate 21, the inner air guide plate 21 and the outer air guide plate 22 are arranged at the front end of the main body shell 10, the inner air guide plate 21 and the outer air guide plate 22 are connected by a first connecting rib 28, a fluid outlet 91 is formed between the inner air guide plate 21 and the outer air guide plate 22, the fluid outlet 91 includes a bell mouth 33 and a straight through port 25 arranged in sequence along the direction of fluid movement, an inclined straight surface 24 is formed on the outer side wall of the inner air guide plate 21, the inner air guide plate 21 is a conical body, and the inclined straight surface 24 is arranged on the conical body On the outer wall surface, the inner side wall of the outer air guide plate 22 is formed with an arc surface 23, and the bell mouth 33 is formed by the inclined straight surface 24 and the arc surface 23. The bell mouth 33 is gradually narrowed along the fluid direction and communicated with the straight-through port 25. The end of the inclined straight surface 24 close to the outer air guide plate 22 is formed with a first air guide plane 36 extending in the direction of fluid movement. The end of the arc surface 23 close to the inner air guide plate 21 is formed with a second air guide plane 37 extending in the direction of fluid movement. The straight-through port 25 is formed by the first air guide plane 36 and the second air guide plane 37. The arc surface 23 is an arc-shaped concave surface. The curvature of the arc concave surface is 0.4r~0.7r, the angle between the inclined straight surface 24 and the first air guide plane 36 is 120°~140°, the width d of the straight opening 25 is 1.5~3.0mm, and the depth h is 2.0~4.0mm. The outer wall surface of the inner air guide plate 21 is provided with a first screw column 30, and the first screw column 30 is provided with a plurality of first screw columns 30, and the plurality of first screw columns 30 are connected by a second connecting rib 31, each of the first screw columns 30 is provided with a reinforcing rib, and the second connecting rib 31 is provided with a first anti-fool block 32, and the inclined straight surface 24 is provided with a plurality of for positioning The positioning plates 34 of the heater 40 are arranged in a ring shape, and a positioning step 35 is provided on the positioning plates 34. The outer surface of the outer air guide plate 22 is provided with a locking ridge 29, and the main body shell 10 is provided with a locking groove 12 corresponding to the locking ridge 29. The air outlet guide 20 is installed at the front end of the main body shell 10 through the cooperation between the locking ridge 29 and the locking groove 12. The outer surface of the outer air guide plate 22 is also provided with a first annular groove 27, and a first sealing ring 26 is sleeved in the first annular groove 27. The outer surface of the first sealing ring 26 is pressed and contacted with the inner surface of the main body shell 10.

[0108] By respectively providing an inclined straight surface 24 and an arc surface 23 on the inner air guide plate 21 and the outer air guide plate 22, a bell mouth 33 is formed between the inclined straight surface 24 and the arc surface 23, and a first air guide plane 36 is provided at one end of the inclined straight surface 24 close to the outer air guide plate 22, and a second air guide plane 37 is provided at one end of the arc surface 23 close to the inner air guide plate 21, a straight-through port 25 is formed between the first air guide plane 36 and the second air guide plane 37, and the bell mouth 33 is gradually narrowed along the direction of the fluid and then connected to the straight-through port 25, so that the fluid gradually gathers at the straight-through port 25 after passing through the bell mouth 33, and flows out in a straight line, thereby improving the smoothness and efficiency of the air outlet of the hair dryer, and achieving a better blowing effect.

[0109] like Fig.11 As shown, the heater 40 includes a pipe 41 arranged in a cylindrical shape and a blade 42 circumferentially arranged on the outside of the pipe 41, and a heating wire (not shown) is provided on the blade 42. A fixing plate 43 is provided in the pipe 41, and a first connecting hole 44 corresponding to the first screw column 30 is provided on the fixing plate 43. During assembly, the first screw is inserted into the first connecting hole 44 from the rear end to the front end of the shell and is screwed together with the first screw column 30. A first anti-idiot groove 45 corresponding to the first anti-idiot block 32 is provided on the fixing plate 43, and a second screw column 46 is provided on the rear side of the fixing plate 43. A plurality of second screw columns 46 are provided, and the plurality of second screw columns 46 are connected by a third connecting rib 47, and a second anti-idiot block 48 is provided on the third connecting rib 47.

[0110] like Figure 12-13 As shown, the circuit board bracket 50 includes a cylinder 51 and a front end plate 52 and a base plate 56 respectively arranged at the front and rear ends of the cylinder 51. The front part of the cylinder 51 is provided with a first annular step 55. The front end plate 52 is provided with a second connecting hole 53 corresponding to the second screw column 46. The second connecting hole 53 passes through the front and rear sides of the front end plate 52. There are multiple second connecting holes 53, and the multiple second connecting holes 53 are distributed in a ring shape on the front end plate 52. The circuit board bracket 50 is installed on the heater 40 by screwing the second screw column 46 through the second connecting hole 53 from back to front through the second screw. The front end plate 52 is provided with a second anti-foolproof block 48 corresponding to the second screw hole 53. The second fool-proof groove 54 is formed, the base plate 56 has a accommodating cavity 57 formed by being recessed forward from the rear end of the base plate 56, the main control circuit board 61 is installed on the base plate 56, the base plate 56 is provided with a third screw column 58, the main control circuit board 61 is provided with a third connecting hole 62 corresponding to the third screw column 58, the base plate 56 is also provided with a positioning column 59, the main control circuit board 61 is provided with a first positioning hole 63 corresponding to the positioning column 59, the left and right sides of the cylinder 51 are provided with guide plates 60, the guide plates 60 extend downward from the front to the back, and the guide plates 60 change the direction of the fluid flowing in from the handle 100 and flow out from the fluid outlet 91 of the main body.

[0111] It should be noted that, in the present invention, a second screw column 46 may also be disposed in the accommodating cavity 57 .

[0112] By arranging a substrate 56 for installing the main control circuit board 61 at the rear end of the cylinder 51, and arranging a accommodating cavity 57 on the substrate 56, the accommodating cavity 57 can be used to accommodate components on the main control circuit board 61, thereby making the assembly of the main control circuit board 61 and the circuit board bracket 50 more compact and reducing the internal space occupied by the main body of the hair dryer; by arranging an end plate at the front end of the cylinder 51 and arranging a connecting hole on the end plate, the assembly of the circuit board bracket 50 is more convenient, the assembly efficiency is improved, the production cost is reduced, and disassembly and maintenance are facilitated.

[0113] like Fig.14 As shown, a receiving groove 71 is provided at the front end of the rear cover 70, and a light source is provided in the receiving groove 71. A light-transmitting portion is provided on the rear cover 70. A taillight circuit board 81 is provided in the receiving groove 71. The light-emitting light source is an LED lamp 82 distributed in an annular manner on the taillight circuit board 81. The LED lamp 82 is close to the inner side of the light-transmitting portion. A fourth screw column 75 is also provided in the receiving groove 71. A fourth connecting hole 83 corresponding to the fourth screw column 75 is provided on the taillight circuit board 81. There are multiple fourth screw columns 75. Reinforcing ribs are provided on the multiple fourth screw columns 75. One of the reinforcing ribs is provided with a third anti-foolproof block 76. A third anti-foolproof groove 84 corresponding to the third anti-foolproof block 76 is provided on the taillight circuit board 81. The rear cover 70 includes a rear end plate 72 and an annular side plate 73 that are not light-transmitting. A light-transmitting area 74 is formed between the rear end plate 72 and the annular side plate 73. The light-transmitting portion is the light-transmitting area 74. The rear cover 70 is made of a transparent Or formed of a translucent material, a light-shielding layer is provided on the surface of the non-light-transmissive part of the rear cover 70, the light-shielding layer includes an end face light-shielding layer provided on the outer surface of the middle part of the rear end plate 72 and a side face light-shielding layer provided on the outer surface of the annular side plate 73, a light-transmitting area 74 is formed between the edge of the end face light-shielding layer and the edge of the side face light-shielding layer, the light-transmitting area 74 extends obliquely from the edge of the side face light-shielding layer from front to back toward the middle part of the rear end plate 72, the annular side plate 73 is provided with an annular connecting plate 77 extending toward the opening direction of the accommodating groove 71, an ear plate 78 is provided on the annular connecting plate 77, a first clamping hole 79 is provided on the ear plate 78, a first clamping block 13 corresponding to the first clamping hole 79 is provided on the rear end inner surface of the main body shell 10, a second annular step is formed at the connection between the annular connecting plate 77 and the annular side plate 73, a second sealing ring 80 is provided on the front side of the annular step, and a second annular groove 14 corresponding to the second sealing ring 80 is provided on the inner surface of the rear end of the main body shell 10.

[0114] It should be noted that in the present invention, the taillight circuit board 81 is electrically connected to the main control circuit board 61 of the hair dryer. A temperature sensor is electrically connected to the main control circuit board 61. According to different wind temperatures, the control element (such as a single-chip microcomputer) on the main control circuit board 61 controls the LED light 82 to emit different colors, so that the user can judge the wind temperature according to the color changes.

[0115] By setting a accommodating groove 71 on the back cover 70, setting a luminous light source in the accommodating groove 71, and setting a light-transmitting portion on the back cover 70, the main control circuit board 61 in the hair dryer controls the luminous light source to emit different colors according to different wind temperatures. The user can directly judge the wind temperature of the hair dryer by observing the color changes, which is convenient to use.

[0116] like Figure 15-16 As shown, the lower end of the handle inner shell 108 is provided with an extension portion 116, and the connection between the extension portion 116 and the inner rear wall 112 is provided with a clamping plate 115. The lower end of the extension portion 116 is provided with a wire opening 123 and a wire clamping hole 126 located above the wire opening 123 in sequence, and both sides of the wire clamping hole 126 are provided with a branching groove 128, and the upper and lower ends of the wire clamping hole 126 are respectively connected to the branching groove 128 and the wire opening 123, and the outer surface of the extension portion 116 is provided with a wire opening 129 for the power supply line to pass outward, and the wire opening 123 and the branching groove 128 are connected to the branching groove 128. The groove 128 is connected, and the outer surface of the handle inner shell 108 is provided with multiple groups of wire clamping components distributed along the length direction of the handle inner shell 108, and the multiple groups of wire clamping components all include two spaced-apart limiting columns 113, one end of the limiting column 113 protrudes outward from the outer surface of the handle inner shell 108, and a wire clamping opening 114 is formed between the two spaced-apart limiting columns 113, and the electric wires are successively passed through the wire opening 123 and the wire clamping hole 126, and pass out along the branching groove 128 and the wire passing groove 129, and are distributed from bottom to top through multiple wire clamping openings 114.

[0117] The fluid inlet 101 is provided at the connection between the extension 116 and the handle inner shell 108, and the fluid inlet 101 is located at the lower end surface of the handle inner shell 108. The fluid inlet 101 is the inlet in the axial direction of the handle 100. The extension 116 includes a left extension 117 and a right extension 118. The left extension 117 and the right extension 118 are connected by a fourth partition plate 224. The left extension 117 includes a first The front arm 119 and the first rear arm 121, the right extension 118 includes a second front arm 120 and a second rear arm 122 arranged on the front and rear sides of the other end of the fourth partition plate 224, the first front arm 119 and the second front arm 120 are integrally connected with the inner front wall 111, the first rear arm 121 and the second rear arm 122 are integrally connected with the inner rear wall 112, the through-line opening 123 is located between the left extension 117 and the right extension 118, and a relatively protruding The first extrusion block 124 and the second extrusion block 125, a wire clamping hole 126 is formed between the first extrusion block 124 and the second extrusion block 125, the first extrusion block 124 and the second extrusion block 125 are both integrally formed with the extension portion 116, a wiring block 127 is provided on the side of the first extrusion block 124 and the second extrusion block 125 facing the handle inner shell 108, a wiring groove 128 is formed between the first extrusion block 124 and the second extrusion block 125 and the corresponding wiring block 127, two first extrusion blocks 124 are provided, the two first extrusion blocks 124 are respectively formed on the first forearm 119 and the first rear arm 121, two second extrusion blocks 125 are provided, the two second extrusion blocks 125 are respectively formed on the second forearm 120 and the second rear arm 122, the wiring groove 129 is located on the second rear arm 122, and the outer surface of the second rear arm 122 is provided with a plurality of staggered stopper protrusions 130, and a wire clamping area 131 is surrounded by the plurality of stopper protrusions 130.

[0118] By setting an extension portion 116 at the lower end of the handle inner shell 108, a wire opening 123, a wire clamping hole 126, a wire dividing groove 128 and a wire passing groove 129 are set on the extension portion 116, and a plurality of wire clamping components distributed along the length direction of the handle inner shell 108 are set on the outer surface of the handle inner shell 108, and the plurality of wire clamping components each include two spaced limiting columns 113, and a wire clamping opening 114 is formed between the two spaced limiting columns 113. The wires are sequentially inserted from the wire opening 123 and the wire clamping hole 126, and are connected along the wire dividing groove 128 and the wire passing groove. 129 passes outward and passes through multiple wire clamping openings 114 from bottom to top, thereby making the wire assembly more convenient, improving the assembly efficiency, and reducing the production cost of the enterprise; by arranging relatively protruding first extrusion blocks 124 and second extrusion blocks 125 in the wire opening 123, a wire clamping hole 126 is formed between the first extrusion block 124 and the second extrusion block 125, and the first extrusion block 124 and the second extrusion block 125 are both integrally formed with the extension portion 116, so there is no need to separately set a positioning block to fix the wires, simplifying the structure and reducing material costs.

[0119] like Figure 17-20As shown, the outer surface of the upper end of the handle inner shell 108 has a mounting platform 140 formed by an inward concave shape, and two mounting plates 141 arranged at intervals are provided on the mounting platform 140. The two mounting plates 141 are vertically arranged on the middle outer surface of the mounting platform 140, and a mounting space is formed between the two mounting plates 141. A switch is provided in the mounting space. The mounting space is provided with a first partition plate 142, a second partition plate 143 and a third partition plate 144 arranged at intervals from top to bottom. The first partition plate 142, the second partition plate 143 and the two mounting plates 141 form a first mounting groove 145, the third partition plate 144 and the two mounting plates 141 form a second mounting groove 146, and the second mounting groove 147 is formed between the third partition plate 144 and the two mounting plates 141. 46, a through-line notch 151 is provided on one side of the second mounting groove 146, a first limiting block 152 is provided at the lower end of the second mounting groove 146, a first limiting groove 167 corresponding to the first limiting block 152 is provided on the PCB board 165, and a third mounting groove 147 is surrounded by the second partition plate 143, the third partition plate 144 and the two mounting plates 141, and a through-line opening 150 is provided on one side of the third mounting groove 147, and the switch includes a toggle switch 159 for controlling the power supply and a button switch 164 for controlling the gear position, the toggle switch 159 is arranged in the first mounting groove 145, the button switch 164 is arranged in the second mounting groove 146, and the toggle switch 159 includes a toggle switch body 160 and a toggle switch body 160 provided on the toggle switch body 160 The toggle switch 161 includes a PCB board 165 and a button 166 arranged on the PCB board 165. The length and width of the toggle switch body 160 are adapted to the length and width of the first mounting groove 145. The length and width of the PCB board 165 are adapted to the length and width of the second mounting groove 146. The upper and lower ends of the toggle switch body 160 are respectively provided with a first conductive sheet 162 and a second conductive sheet 163. The first conductive sheet 162 and the second conductive sheet 163 are respectively electrically connected to the main control circuit board and the power cord 132 of the hair dryer. The first partition plate 142 and the second partition plate 143 are respectively provided with a first clearance groove 148 and a second clearance groove 149 for the first conductive sheet 162 and the second conductive sheet 163 to extend outward. The first conductive sheet 162 is provided with two, and the two first conductive sheets 162 are distributed along the opening width direction of the first give way slot 148. The opening width of the first give way slot 148 is greater than the opening width of the second give way slot 149. The mounting platform 140 is also provided with a switch cover plate 155, and the switch cover plate 155 is respectively provided with a toggle cap 156 and a button 166 cap 157 corresponding to the toggle block 161 and the button 166. The toggle cap 156 is connected to the toggle block 161, and the button 166 cap 157 is in contact with the button 166. The toggle cap 156 and the button 166 cap 157 respectively extend outward through the toggle block 161 give way hole 106 and the button 166 give way hole 107 on the handle housing 103.The mounting platform 140 is further provided with a second positioning hole 153, the switch cover plate 155 is provided with a positioning column (not shown) corresponding to the second positioning hole 153, the second mounting groove 146 is further provided with a second screw hole 154, and the switch cover plate 155 is provided with a second mounting hole 158 corresponding to the second screw hole 154.

[0120] A mounting platform 140 is arranged on the outer surface of the upper end of the handle inner shell 108, and two mounting plates 141 are arranged on the mounting platform 140 with a spacing therebetween. The two mounting plates 141 are vertically arranged on the middle outer surface of the mounting platform 140, and an installation space for installing a switch is formed between the two mounting plates 141, thereby eliminating the need to separately arrange a mounting seat for installing the switch, thereby simplifying the installation structure of the switch, reducing the assembly process, improving the assembly efficiency, reducing the production cost of the enterprise, and facilitating disassembly and maintenance.

[0121] like Figure 8 and Fig.23 As shown, the silencer includes silencer cotton (not shown) annularly distributed on the inner side of the fluid inlet 101 and a positioning frame 176 for fixing the silencer cotton, the silencer cotton is located between the positioning frame 176 and the handle inner shell 108, the positioning frame 176 is provided with a through hole 177 for exposing the silencer cotton, the positioning frame 176 is provided with a honeycomb plate 179 at one end close to the fluid inlet 101, the honeycomb plate 179 is provided with a plurality of closely arranged honeycomb holes 180, the honeycomb holes 180 pass through the upper and lower sides of the honeycomb plate 179, the inner surface of the handle inner shell 108 is provided with a positioning cavity, the positioning cavity is provided with a plurality of annularly distributed positioning grooves 172 at one end close to the fluid inlet 101, the silencer cotton is provided with a plurality of, and the plurality of silencer cottons are installed in the corresponding positioning cavity. The width of the positioning groove 172 along the fluid inflow direction is not more than 9 mm, the width of the silencer cotton is adapted to the width of the positioning groove 172, positioning strips 173 are provided at both ends of the positioning cavity, a second limiting groove 174 is provided on the positioning strip 173, a second limiting block 178 corresponding to the second limiting groove 174 is provided on the positioning frame 176, the handle inner shell 108 includes a detachably connected inner front wall 111 and an inner rear wall 112, the positioning cavity includes an inner front cavity 170 and an inner rear cavity 171 respectively located on the inner front wall 111 and the inner rear wall 112, a first positioning notch 181 is provided at the lower end of the positioning frame 176, and a positioning protrusion 175 corresponding to the first positioning notch 181 is provided on the inner front cavity 170.

[0122] It should be noted that the sound-absorbing cotton in the present invention can also be replaced by felt.

[0123] like Figure 21-22As shown, an outer filter screen 200 arranged in a cylindrical shape is provided on the outer side of the fluid inlet 101, and a side wall 215 of the outer filter screen 200 is provided with a plurality of air inlet holes 201 connected with the fluid inlet 101, and the outer filter screen 200 is sleeved on the outer side of the extension portion 116, and a first magnetic component 190 is provided on the extension portion 116, and a second magnetic component 205 is provided on the outer filter screen 200, and the outer filter screen 200 and the extension portion 116 are magnetically connected by the first magnetic component 190 and the second magnetic component 205, and the first magnetic component 190 is provided on the lower end surface of the extension portion 116, and the side wall 215 is provided with a plurality of air inlet holes 201 connected with the fluid inlet 101, and the outer filter screen 200 is sleeved on the outer side of the extension portion 116, and a first magnetic component 190 is provided on the extension portion 116, and a second magnetic component 205 is provided on the outer filter screen 200. A bottom plate 202 is provided at the lower end of the extension 116, and a receiving cavity is formed between the side wall 215 and the bottom plate 202. The second magnetic component 205 is located on the inner surface of the bottom plate 202. The inner surface of the bottom plate 202 is provided with a plurality of annularly distributed positioning bosses 203. The second magnetic component 205 is provided with positioning through holes 206 corresponding to the positioning bosses 203. The lower end of the extension 116 is provided with an embedding hole 194 for installing the first magnetic component 190. The embedding hole 194 has a clearance opening 195 for allowing the first magnetic component 190 to expose the lower end surface of the extension 116. The first magnetic component 190 is a magnet, the second magnetic component 205 is an iron ring, the inner side of the outer filter 200 is also provided with an inner filter 214 and an inner filter bracket 207 in a cylindrical shape, the inner filter 214 is located between the extension portion 116 and the inner filter bracket 207, the inner filter bracket 207 includes an upper ring 208 and a lower ring 209 located below the upper ring 208, the upper ring 208 and the lower ring 209 are connected by a connecting arm 210, the outer diameter of the upper ring 208 is greater than the outer diameter of the lower ring 209, the outer side of the connecting arm 210 is provided with a positioning convex strip 211, the positioning The upper end of the positioning ridge 211 passes through the upper ring 208 and extends upward. The lower end of the handle 100 is provided with a second positioning notch 193 adapted to the extended end of the positioning ridge 211. The inner surface of the outer filter 200 is provided with a positioning groove 204 adapted to the positioning ridge 211. The lower end of the extension portion 116 is provided with a third limiting groove 191, and a third screw hole 192 is provided in the third limiting groove 191. The inner side of the lower ring 209 is provided with a third limiting block 212 corresponding to the third limiting groove 191, and the third limiting block 212 is provided with a third mounting hole 213 corresponding to the third screw hole 192.

[0124] It should be noted that, in the present invention, the magnet can also be disposed on the outer filter 200 , and the iron ring is correspondingly disposed on the extension portion 116 .

[0125] By providing an extension portion 116 at the lower end of the handle 100 and an outer filter 200 that is provided in a cylindrical shape, the outer filter 200 is sleeved on the outside of the extension portion 116, and the outer filter 200 and the extension portion 116 are magnetically connected. The magnetic connection allows the user to separate the outer filter 200 from the handle 100 by using only a certain amount of force during disassembly, and to automatically engage the outer filter 200 by simply inserting the outer filter 200 into the extension portion 116 during installation, thereby simplifying the installation and disassembly method between the outer filter 200 and the handle 100 and facilitating the removal of the outer filter 200 for internal cleaning. By providing an embedding hole 194 at the lower end of the extension portion 116, the magnet can be directly embedded in the embedding hole 194, and the magnet is easy to assemble.

[0126] like Figure 24-25 As shown, the fourth partition plate 224 on the extension portion 116 divides the fluid inlet 101 into a front inlet 220 and a rear inlet 221, the first front arm 119 and the second front arm 120 are connected through the fourth partition plate 224, the first front arm 119, the second front arm 120 and the fourth partition plate 224 enclose a front air guide groove 222, the first rear arm 121, the second rear arm 122 and the fourth partition plate 224 enclose a rear air guide groove 223, the front air guide groove 222 and the rear air guide groove 223 are connected to the front inlet 220 and the rear inlet 221 respectively, and the front air guide groove 222 and the rear air guide groove 223 are connected to the front inlet 220 and the rear inlet 221 respectively. The grooves 223 are all arranged in a trumpet shape, and the front air guide grooves 222 and the rear air guide grooves 223 gradually increase from bottom to top. The first forearm 119, the second forearm 120 and the fourth partition plate 224 are integrally formed, the first forearm 119 and the second forearm 120 are both provided with a fourth screw hole 225, the first rear arm 121 and the second rear arm 122 are both provided with a fourth mounting hole 226 corresponding to the fourth screw hole 225, the first forearm 119 and the second forearm 120 are both provided with a limiting notch 227, and the first rear arm 121 and the second rear arm 122 are both provided with a limiting protrusion 228 corresponding to the limiting notch 227.

[0127] It should be noted that the fourth partition plate 224 described in the present invention can also be integrally formed with the first rear arm 121 and the second rear arm 122, and two fourth partition plates 224 can also be provided, wherein one of the fourth partition plates 224 is integrally formed with the first forearm 119 and the second forearm 120, and the other fourth partition plate 224 is integrally formed with the first rear arm 121 and the second rear arm 122.

[0128] By arranging an extension portion 116 at the lower end of the handle inner shell 108, a fluid inlet 101 is arranged at the connection between the extension portion 116 and the handle inner shell 108, the extension portion 116 includes a left extension portion 117 and a right extension portion 118, and the left extension portion 117 and the right extension portion 118 are connected by a fourth partition plate 224, and the fourth partition plate 224 divides the fluid inlet 101 into a front inlet 220 and a rear inlet 221. When the hair dryer is working, the wind outside the fluid inlet 101 is respectively guided to the front inlet 220 and the rear inlet 221 along the front and rear sides of the fourth partition plate 224, so as to avoid the turbulence caused by the wind on the front and rear sides of the fourth partition plate 224 interfering with each other, so as to make the air suction smoother, improve the air suction efficiency, and enhance the blowing effect of the hair dryer; by adopting the front air guide groove 222 and the rear air guide groove 223 arranged in a trumpet shape, the resistance of the sucked wind entering the fluid inlet 101 along the front air guide groove 222 or the rear air guide groove 223 is gradually reduced, so as to improve the air suction efficiency.

[0129] like Figure 26-30 As shown, a tuyere 400 is provided at the front end of the main body 90, and the tuyere 400 includes an outer tuyere shell 401, an inner tuyere shell 405 and a baffle 417, the inner side of the inner tuyere shell 405 has a trumpet-shaped air inlet cavity 406 and a flat air outlet cavity 409 connected to the trumpet-shaped air inlet cavity 406, the outer tuyere shell 401 is sleeved on the outer side of the inner tuyere shell 405, the inner side of the outer tuyere shell 401 has a trumpet-shaped accommodating cavity 402 and a flat accommodating cavity 403 corresponding to the shapes of the trumpet-shaped air inlet cavity 406 and the flat air outlet cavity 409, the trumpet-shaped accommodating cavity 402 and the flat accommodating cavity 403 are connected, the inner wall of the trumpet-shaped accommodating cavity 402 is provided with a locking card block 404, and the outer wall of the trumpet-shaped air inlet cavity 406 is provided with a locking card block 404 connected to the locking card block The outer layer wind nozzle shell 401 and the inner layer wind nozzle shell 405 are combined with each other through the cooperation of the locking card block 404 and the locking card slot 415. The baffle plate 417 is arranged at the opening of the trumpet-shaped air inlet cavity 406. The outer edge of the baffle plate 417 and the opening edge of the trumpet-shaped air inlet cavity 406 are spaced apart to form an air inlet 410. The baffle plate 417 includes a circular plate body 418. The outer side of the circular plate body 418 is provided with an annular rib 419 protruding radially outward. The annular rib 419 and the opening edge of the trumpet-shaped air inlet cavity 406 are spaced apart to form an air inlet 410. The outer side of the air inlet 410 is provided with an annular mounting groove 416. The front end of the outer air guide plate 22 is provided with an iron ring 423 ( Fig. 9), an annular magnet 422 corresponding to the iron ring is provided in the annular mounting groove 416, an air outlet 411 is provided at one end of the flat air outlet cavity 409 away from the air inlet 410, an oblique extension plate 412 is provided on the outer surface of the trumpet-shaped air inlet cavity 406, and the oblique extension plate 412 extends obliquely outward from the air inlet 410 toward the air outlet 411, and the oblique extension plate 412 makes the width b of the air outlet 411 larger than the diameter k of the opening of the trumpet-shaped air inlet cavity 406, and a mounting portion is provided in the trumpet-shaped air inlet cavity 406, The baffle 417 is connected to the mounting part, and the mounting part is the sixth screw column 414. The baffle 417 is provided with a sixth connecting hole 420 corresponding to the sixth screw column 414. A fifth partition plate 413 is also provided in the trumpet-shaped air inlet chamber 406. The sixth screw column 414 is located on the fifth partition plate 413. The fifth partition plate 413 divides the trumpet-shaped air inlet chamber 406 into a first air inlet chamber 407 and a second air inlet chamber 408. The baffle 417 is provided with a fourth limiting groove 421 corresponding to the thickness of the fifth partition plate 413.

[0130] In summary, the present invention provides an inner layer wind nozzle shell 405 and a baffle 417, wherein the inner layer wind nozzle shell 405 has a trumpet-shaped air inlet cavity 406 and a flat air outlet cavity 409 connected to the trumpet-shaped air inlet cavity 406, and the baffle 417 is provided at the opening of the trumpet-shaped air inlet cavity 406, and a distance is maintained between the outer edge of the baffle 417 and the opening edge of the trumpet-shaped air inlet cavity 406 to form an air inlet 410, thereby avoiding the phenomenon that turbulence is easily generated in the area between the trumpet-shaped air inlet cavity 406 and the fluid outlet , the smoothness and efficiency of the air outlet of the air nozzle 400 are improved, so that the blowing effect is better; by setting the fifth partition plate 413, the intensity of the mutual interference of the wind in the trumpet-shaped air inlet chamber 406 is reduced, and the smoothness of the air outlet is further improved; by setting the oblique extension plate 412, the oblique extension plate 412 makes the width of the air outlet 411 larger than the diameter of the opening of the trumpet-shaped air inlet chamber 406, so that the air outlet volume per unit time of the air nozzle 400 is larger, the blowing range is wider, and the user experience is better.

[0131] In summary, the present invention simplifies the product structure, reduces the mold manufacturing cost, and avoids the main body 90 and the handle 100 being scrapped simultaneously due to injection molding problems during the molding process, thereby saving resources. At the same time, it is easy to install and disassemble, and convenient for maintenance; a docking plate 302 is provided on the main body shell 10, and alignment grooves 303 and alignment notches 306 are provided on the front and rear sides of the docking plate 302. The handle inner shell 108 is provided with an inner front wall 111 and an inner rear wall 112 that are detachably connected, the inner front wall 111 is provided with a fifth screw column 310, and the inner rear wall is provided with a fifth connecting hole 313. The docking plate 302 is provided with an alignment hole 304. During assembly, the screw column is inserted into the alignment hole 304 so that the inner front wall 111 is aligned with the alignment hole 304. The upper end is embedded in the alignment groove 303, and the upper end of the inner rear wall 112 is directly embedded in the alignment notch 306, and then screwed, so that the assembly of the main shell 10 and the handle inner shell 108 is more convenient, the assembly efficiency is improved, and the production cost of the enterprise is reduced; by providing a guide ridge 307 on the surface of the docking plate 302 facing the inner rear wall 112, and providing a guide groove 314 on the inner rear wall 112, the upper end of the inner rear wall 112 is convenient to slide quickly into the alignment notch 306 after alignment through the guiding effect, thereby further improving the assembly efficiency; by forming a reinforcing protrusion 311 on the outer side of the bottom of the fifth screw column 310, the strength of the connection between the fifth screw column 310 and the inner front wall 111 is enhanced, thereby avoiding the fifth screw column 310 from being easily broken during the assembly process.

[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made to the above embodiment based on the technical practice of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A handheld hair dryer, comprising a main body and a handle, wherein the handle is provided with a fluid inlet, the main body is provided with a fluid outlet, the fluid inlet and the fluid outlet are connected to form a fluid channel, characterized in that: The main body and the handle are detachably connected; The front end of the main body is provided with an air nozzle, and the air nozzle comprises an inner air nozzle shell and a baffle, the inner side of the inner air nozzle shell is provided with a trumpet-shaped air inlet chamber and a flat air outlet chamber connected with the trumpet-shaped air inlet chamber, and the baffle is arranged at the opening of the trumpet-shaped air inlet chamber, and the baffle comprises a circular plate body, the outer side of the circular plate body is provided with an annular rib protruding radially outward, a spacing is maintained between the annular rib and the opening edge of the trumpet-shaped air inlet chamber to form an air inlet, an air outlet is provided at one end of the flat air outlet chamber away from the air inlet, an oblique extension plate is provided on the outer surface of the trumpet-shaped air inlet chamber, the oblique extension plate extends obliquely outward from the air inlet toward the air outlet, the oblique extension plate makes the width b of the air outlet larger than the diameter k of the opening of the trumpet-shaped air inlet chamber, and a partition plate is also provided in the trumpet-shaped air inlet chamber, and the partition plate divides the trumpet-shaped air inlet chamber into a first air inlet chamber and a second air inlet chamber.

2. The handheld hair dryer according to claim 1, characterized in that: The main body includes a main body shell, which has a fluid diversion port and a main body connecting portion protruding downward along the edge of the fluid diversion port, and the fluid inlet and the fluid outlet are both connected to the fluid diversion port. The handle includes a handle inner shell, and the handle inner shell includes a detachably connected inner front wall and an inner rear wall, and at least one of the inner front wall and the inner rear wall is detachably connected to the main body connecting portion.

3. The handheld hair dryer according to claim 2, characterized in that: The main body connection part includes a docking plate, a front side of the docking plate is provided with an alignment groove, the upper end of the inner front wall is embedded in the alignment groove, an alignment notch is formed between the rear side of the docking plate and the fluid diverter port, the upper end of the inner rear wall is embedded in the alignment notch, the inner front wall is provided with a screw column, the inner rear wall is provided with a connecting hole corresponding to the screw column, the docking plate is provided with an alignment hole adapted to the screw column, and the alignment hole is connected to the alignment notch.

4. The handheld hair dryer according to claim 3, characterized in that: A guide convex strip is arranged on the surface of the butt joint plate facing the inner rear wall, and a guide groove corresponding to the guide convex strip is arranged on the inner rear wall.

5. The handheld hair dryer according to claim 4, characterized in that: The lower end of the guide ridge is connected to the lower surface of the docking plate, the inner side of the upper end of the guide ridge has an inwardly extending arcuate guide surface, and the upper end of the inner side wall of the guide groove is provided with an arcuate pressing surface corresponding to the arcuate guide surface.

6. The handheld hair dryer according to claim 3, characterized in that: A reinforcing convex block is formed on the outer side of the bottom of the screw column, and a yielding groove corresponding to the reinforcing convex block is provided on the alignment groove.

7. The handheld hair dryer according to claim 3, characterized in that: The lower end of the alignment groove passes downwardly out of the lower surface of the docking plate.

8. The handheld hair dryer according to claim 2, characterized in that: A clamping block is arranged on the inner rear wall, and a clamping hole corresponding to the clamping block is arranged on the inner front wall.

9. The handheld hair dryer according to claim 2, characterized in that: An air outlet guide, a heater and a main control circuit board are arranged in sequence in the main body shell, a rear cover is arranged at the rear end of the main body shell, and the fluid outlet is arranged on the air outlet guide.

10. The handheld hair dryer according to claim 1, characterized in that: A switch is arranged on the handle, a fan assembly is arranged in the fluid channel, and the fan assembly is located on the handle. The fan assembly comprises a motor and fan blades driven to rotate by the motor.

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