WO2020087711A1

WO2020087711A1 - Hair drying device

Info

Publication number: WO2020087711A1
Application number: PCT/CN2018/122866
Authority: WO
Inventors: 陈旭; 孟凡迪
Original assignee: 舒可士（深圳）科技有限公司
Priority date: 2018-10-31
Filing date: 2018-12-21
Publication date: 2020-05-07
Also published as: CN209171522U

Abstract

A hair drying device (10), comprising a device body (200). The device body (200) comprises a housing (230) and a tube body (240) provided in the housing (230) in a penetrating manner; a first fluid passage (101) is provided in the device body (200) and passes through a region between the housing (230) and the tube body (240); the tube body (240) sequentially comprises a first part (241), a second part (242), and a third part (243) along a flow direction of the fluid in the first fluid passage (101); the third part (243) comprises an inlet end (2432) and an outlet end (2434); the inlet end (2432) is the end close to the second part (242), and the outlet end (2434) is the end distant from the second part (242); a port of the outlet end (2434) is greater than that of the inlet end (2432). The first fluid passage (101) of the hair drying device (10) becomes narrower in a first fluid outlet (222). Compared with the prior art, in the case that the power of a fan assembly (400) is constant, the fluid flow rate of the first fluid outlet (222) of the hair drying device is increased, and the fluid can flow out at a faster speed, thereby having higher drying efficiency.

Description

Hair Dryer Technical Field

[0001] The present application relates to the technical field of blowing equipment, and in particular to a hair drying device.

Background technique

[0002] Hair drying devices are mostly used for drying and shaping hair, and can also be used for other aspects of drying and art.

5 See the hair drying devices in the technology generally rely on the motor to directly rotate the fan blades. When the fan blades rotate, the air can enter from the air inlet, and then blow out from the air outlet through the air cylinder to form an airflow, so as to achieve drying, Plastic surgery and other purposes.

Summary of the invention

technical problem

[0003] See that if the ordinary hair drying device in the art needs to increase the fluid flow rate at the fluid outlet, the power and size of the fan assembly must be increased, which will increase the size and cost of the hair drying device, and the fluid When the flow rate is large, the noise generated by the hair drying device is also relatively large.

Solution to the problem

Technical solution

[0004] The technical problem to be solved by the present application is to provide a hair drying device that can have a large fluid flow rate at the fluid outlet without increasing the power and size of the fan assembly in the hair drying device.

[0005] In order to solve the above technical problems, the technical solutions adopted in this application are:

[0006] A hair drying device includes a body, the body includes a housing and a tube body disposed in the housing, a first fluid channel is provided in the body, the first fluid channel passes through Between the housing and the tube body; along the flow direction of the fluid in the first fluid channel, the tube body sequentially includes a first part, a second part, and a third part, the third part includes an inlet For the end and the outlet end, the inlet end is an end close to the second part, the outlet end is an end far from the second part, and a port of the outlet end is larger than a port of the inlet end.

[0007] Preferably, the side wall of the third portion is inclined with respect to the axis of the tube body, and the angle of inclination is 0-

90. . [0008] Preferably, the side wall of the third portion is inclined with respect to the axis of the tube body, and the angle of inclination is 10

-60. .

[0009] Preferably, a first fluid outlet is provided between the outlet end of the third portion and the housing, the first fluid outlet communicates with the first fluid channel, and the The shape is circular.

[0010] Preferably, the width of the first fluid outlet is 1.5-4 mm.

[0011] Preferably, the first part includes an open end disposed away from the second part, a second fluid inlet is provided on the open end, and a second fluid outlet is provided on the outlet end of the third part, The second fluid inlet communicates with the second fluid outlet to form a second fluid channel;

[0012] Preferably, the body further includes a first end cover, the first end cover is provided at the open end of the first portion, and a first end cover is provided between the first end cover and the first portion A gap, the first gap constitutes the second fluid inlet.

[0013] Preferably, the second fluid inlet has a ring shape.

[0014] Preferably, the width of the second fluid inlet is 1-6 mm.

[0015] Preferably, the body further includes a second end cap, the second end cap is provided at the outlet end of the third part, and the second end cap and the outlet end of the third part There is a second gap therebetween, which constitutes the second fluid outlet.

[0016] Preferably, the second fluid outlet has a ring shape.

[0017] Preferably, the width of the second fluid outlet is 1-6 mm.

[0018] Preferably, an angle is formed between the side surface of the second end cover and the axis of the tube body, and the angle of the included angle is 0-90 °.

[0019] Preferably, an angle is formed between the side of the second end cap and the axis of the tube body, and the angle of the angle is 10-60 °.

[0020] Preferably, the body further includes a second connecting portion and an external portion, the external portion is connected to the housing; the second end cap is located in the external portion, and through the second connection The part is connected to the external part.

[0021] Preferably, the body further includes an external portion, the external portion is connected to the housing; a third gap is provided between the external portion and the second end cap, the third gap A confluence outlet is formed, and the confluence outlet is used for the first fluid in the first fluid channel and the second fluid in the second fluid channel to merge and flow out. [0022] Preferably, the shape of the confluence outlet is annular.

[0023] Preferably, the width of the confluence outlet is 1.5-6.5 mm.

[0024] Preferably, the side wall of the first portion is arc-shaped.

[0025] Preferably, the first part is of a trumpet type, the large end of the first part is connected to one end of the housing, and the small end of the first part is connected to the second part.

[0026] Preferably, the second portion is cylindrical.

[0027] Preferably, the housing is cylindrical.

Beneficial effects of invention

Beneficial effect

[0028] The beneficial effect of the present application is that: in the present application, the fluid in the first fluid channel flows between the housing and the tube body, because the outlet port of the third part is larger than the inlet port, therefore, the outlet end and the shell The distance between the bodies is smaller than the distance between the inlet end and the housing, which means that the first fluid channel is narrowed at the outlet end, compared with the prior art, the power of the hair drying device of the present application is unchanged at the fan assembly In the case of, the fluid flow rate at the outlet end is increased, it can flow out at a greater speed, and has a higher drying efficiency. Brief description of the drawings

BRIEF DESCRIPTION

[0029] FIG. 1 is a schematic diagram of the overall structure of a hair drying device according to an embodiment of the present application;

[0030] FIG. 2 is an overall cross-sectional view of a hair drying device according to an embodiment of the present application;

[0031] FIG. 3 is a cross-sectional view of a body portion of a hair drying device according to an embodiment of the present application;

[0032] FIG. 4 is a schematic structural diagram of a first part of a hair drying device according to an embodiment of the present application;

[0033] FIG. 5 is a cross-sectional view of a second part and a third part of a tube body of a hair drying device according to an embodiment of the present application; [0034] FIG. 6 is a schematic structural view of a hair drying device according to an embodiment of the present application with a tuyere;

[0035] Explanation of Symbols:

[0036] 10. Hair drying device;

[0037] 100, handle; 101, first fluid channel; 103, first paragraph; 105, second paragraph; 112, first fluid inlet; 130, outer shell; 150, first seal; 160, bottom shell;

[0038] 200, body; 201, second fluid channel; 211, second fluid inlet; 222, first fluid outlet; 223, second fluid outlet; 224, confluence outlet; 230, housing; 240, pipe body; 241, first part; 2412, first connection part; 242, second part; 243, first Three parts; 2432, inlet end; 2434, outlet end; 244, outer cylinder; 250, first end cap; 2502, connecting rib; 260, second seal; 270, second end cap; 2702, bottom face; 2704 , Side; 272, external part; 274, second connection part; 280, third seal;

[0039] 300. Heater;

[0040] 400, fan assembly; 410, fan; 420, motor; 430, motor cover;

[0041] 500. a controller;

[0042] 900, wind mouth;

[0043] 910. A filter;

[0044] Among them, FIG. 3 is designated as an abstract drawing.

Invention Example

Embodiments of the invention

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all Examples. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of this application.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back ...

...) is only used to explain the relative positional relationship, movement, etc. of the components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication also Change accordingly.

[0047] In addition, the descriptions related to "first", "second", etc. in this application are for descriptive purposes only, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated . Thus, limit

In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary people in the art to achieve. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.

Examples [0048] Please refer to FIG. 1, an embodiment of the present application is: a hair drying device 10, which can be used for drying or shaping hair or other aspects. The hair drying device 10 includes a handle 100 and a body 200. The body 200 and the handle 100 communicate with each other. The handle 100 is provided with a first fluid inlet 112, the body 200 is provided with a first fluid outlet 222, and the first fluid inlet 112 A first fluid channel 101 is formed in communication with the first fluid outlet 222. The first fluid can enter the first fluid channel 101 from the first fluid inlet 112 on the handle 100 and flow out from the first fluid outlet 222 of the body 200.

[0049] Please refer to FIG. 2, the handle 100 includes an outer shell 130 and a bottom shell 160, the top end of the shell 130 is connected to the body 200, the bottom end of the outer shell 130 is connected to the bottom shell 160, and the first fluid inlet 112 is provided at the bottom shell 160 on. The first fluid inlet 112 includes a plurality of through holes, and the plurality of through holes are evenly distributed on the bottom case 160, and a filter 910 is provided inside the bottom case 160. The connection between the housing 130 and the body 200 is provided with a first seal 150, which can ensure the tightness of the first fluid channel 101.

[0050] The extending direction of the body 200 and the handle 100 is substantially perpendicular. It can be understood that the first fluid channel 101 includes two segments connected to each other, which are a first segment 103 and a second segment 105, respectively. The inlets of the second segment 105 are connected, the first segment 103 is located in the handle 100, the second segment 105 is located in the body 200, and the extending direction of the first segment 103 is substantially perpendicular to the extending direction of the second segment 105.

[0051] The first fluid channel 101 is provided with a fan assembly 400 for sucking the first fluid through the first fluid inlet 112 into the first fluid channel 101. In this embodiment, the fan assembly 400 is located in the first section 103 That is, the fan assembly 400 is located in the housing 130 of the handle 100. Of course, in other embodiments, the fan assembly 400 may also be disposed in the body 200. The fan assembly 400 includes a motor 420, a fan 410, and a motor sleeve 430. The motor sleeve 430 is sleeved outside the motor 420. The motor sleeve 430 is in contact with the inner wall of the housing 130. The power output end of the motor 420 is connected to the fan 410. The motor 420 drives The fan 410 rotates, drawing the first fluid into the handle 100 to accelerate, and ejects the first fluid from the first fluid outlet 222 of the body 200.

[0052] Please refer to FIG. 2 and FIG. 3 for details, the body 200 includes a housing 230 and a tube 240 disposed in the housing 230, the housing 230 and the tube 240 are both cylindrical, and the tube 240 and the shell The body 230 is arranged in parallel axially, and the first fluid channel 101 passes between the housing 230 and the tube body 240. The housing 230 is specifically cylindrical, and the housing 230 and the tube body 240 are coaxially disposed. Along the flow direction of the first fluid in the second section 105 of the first fluid channel 101, the tube body 240 includes a first part 241, a second part 242, and a third part 243, a first part 241, a second part 242, and a third Part 243 is coaxially arranged. The first part 241, the second part 242 and the third part 243 may be one Body molding setting; the three can also be detachable connection; can also be the first part 241 and the second part 242-body molding, the second part 242 and the third part 243 can be detachably connected; can also be the second part 242 The third part 243 is integrally formed, and the first part 241 and the second part 242 are detachably connected.

[0053] With reference to FIG. 4, the first part 241 is generally trumpet-shaped, and in this embodiment, the side wall of the first part 241 is arc-shaped, and the curved first part 241 can better guide the fluid along the side of the first part 241 The wall enters the inside of the first part 241. The large end of the first part 241 is connected to one end of the housing 230, and a third seal 280 is provided between the large end of the first part 241 and the housing 230; the small end of the first part 241 is connected to the second part 2 42 .

[0054] As shown in FIG. 5, the second portion 242 is cylindrical. The third part 243 includes an inlet end 2432 and an outlet end 2434, the inlet end 2432 is connected to the second part 242, the outlet end 2434 is the end away from the second part 242, and the first fluid outlet is between the outlet end 2434 and the housing 230 222, the port of the outlet end 2434 is larger than the port of the inlet end 2432, and the shapes of the outlet end 2434 and the inlet end 2432 may be circular or non-circular. It can be understood that the distance between the outlet end 2434 and the housing 230 of the third part 243 is smaller than the distance between the inlet end 2432 and the housing 230, that is, the first fluid passage 101 becomes narrower at the first fluid outlet 222 . In this embodiment, along the flow direction of the first fluid in the second section 105, the side wall of the third portion 243 gradually expands outward, that is, the portion of the first fluid passage 101 corresponding to the third portion 243 is It gradually narrows, so the flow rate of the first fluid in the first fluid channel 101 will also gradually increase, and it reaches the maximum at the outlet end 2434 of the third portion 243. In this embodiment, the third portion 243 is of a trumpet shape, the side wall of the third portion 243 is inclined with respect to the axis of the tube body 240, and the inclination angle is 0-90. It can be understood that the inclination angle is the angle between the side wall of the third portion 243 and the axis of the tube 240. Further, the range of the inclination angle is 10-6 0. . When the inclination angle of the side wall of the third portion 243 is set within this range, the body 200 of the hair drying device 10 does not need to be made long, and the distance between the outlet end 2434 and the housing 230 can be reduced to A suitable range can not only allow a larger fluid flow rate between the outlet end 2434 and the housing 230, but also enable the fluid to have a higher flow rate. In different embodiments, 20 °, 30 °, 40 °, or 50 ° can be specifically selected, and this embodiment is specifically set to 45. . In other embodiments, the third portion 243 may also have a structure where the side wall has undulations, that is, the side wall of the third portion 243 may be an irregular structure with depressions or protrusions, the first fluid channel 101 and the third portion The inner diameter of the part corresponding to 243 may first become larger and then smaller, and finally becomes the smallest at the outlet end 2434. [0055] The third portion 243 is connected to the inner side of the housing 230 through an outer cylindrical portion 244, the outer cylindrical portion 244 is ring-shaped, the outer side wall of the outer cylindrical portion 244 abuts the inner side of the housing 230, and the inner wall of the outer cylindrical portion 244 The axis of the tube body 240 is inclined, and the inclined direction of the inner wall of the outer cylindrical portion 244 is opposite to the inclined direction of the side wall of the third portion 243. The first fluid in the first fluid passage 101 flows out between the outer cylinder portion 244 and the third portion 243, and the inclination of the inner wall of the outer cylinder portion 244 can exacerbate the decreasing speed of the first fluid passage 101.

[0056] Referring again to FIGS. 2 and 3, the shape of the first fluid outlet 222 is ring-shaped, and the width of the first fluid outlet 222 is 1.5-4 mm. When the width of the first fluid outlet 222 is within this range, the flow velocity and flow rate of the first fluid in the first fluid channel 101 at the first fluid outlet 222 can be optimized. In different embodiments, the width of the first fluid outlet 222 may be 2mm, 2.5mm, 3mm, 3.5mm and other sizes. The width of the first fluid outlet 222 is the distance between the outlet end 2434 and the housing 230.

[0057] The open end of the first part 241, that is, the large end of the first part 241 is provided with a second fluid inlet 211, and the outlet end 2434 of the third part 243 is provided with a second fluid outlet 223, the second fluid inlet 211 and The second fluid outlet 223 communicates to form a second fluid channel 201. The second fluid can enter the second fluid channel 201 from the second fluid inlet 211 and flow out from the second fluid outlet 223. The second fluid channel 201 passes through the inside of the tube body 240, that is, the first fluid channel 101 surrounds the periphery of the second fluid channel 201 in a ring shape, and accordingly, the first fluid outlet 222 also surrounds the periphery of the second fluid outlet 223 in a ring shape . When the fan assembly 400 drives the airflow in the first fluid channel 101 to be ejected from the first fluid outlet 222 at a high speed, due to the Bernoulli effect, the high-speed airflow can drive the air at the adjacent second fluid outlet 223 to guide The second fluid in the second fluid channel 201 flows out, increasing the air volume.

[0058] The body 200 further includes a first end cap 250, the first end cap 250 is disposed at the opening end of the first portion 241, and a first gap is provided with the opening end of the first portion 241, the first gap constitutes the second Fluid inlet 211. The shape of the second fluid inlet 211 is ring-shaped, and the width of the second fluid inlet 211 is 1-6 mm. When the width of the second fluid inlet 211 is within this range, it can be ensured that the second fluid can enter the second fluid channel 201 from the second fluid inlet 211 at the optimized flow rate and flow rate. In different embodiments, the width of the second fluid inlet 211 may be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm and other sizes. The width of the second fluid inlet 211 is the distance between the first portion 241 and the first end cap 250.

[0059] With reference to FIG. 4, a first connecting portion 2412 is provided inside the first portion 241, and the first end cap 250 is connected to the first portion 241 through the first connecting portion 2412. In this embodiment, the first end cap 250 is connected to the first The portions 2412 are connected by snaps. In other embodiments, the first end cap 250 and the first connecting portion 2412 may be screwed or fixedly connected.

[0060] The periphery of the first end cap 250 is also provided with a plurality of connecting ribs 2502. The plurality of connecting ribs 2502 are in contact with the first portion 241. The plurality of connecting ribs 2502 are located at the second fluid inlet 211, which can block debris from entering Two fluid channels 201.

2 and 3 again, the body 200 further includes a second end cap 270, the second end cap 270 is provided in the third part 2

43 is an outlet end 2434, and a second gap is provided between the second end cap 270 and the outlet end 2434 of the third portion 243, and the second gap constitutes a second fluid outlet 223. The shape of the second fluid outlet 223 is ring-shaped, and the width of the second fluid outlet 223 is 1-6 mm. When the width of the second fluid outlet 223 is within this range, it can be ensured that the second fluid in the second fluid passage 201 flows out of the second fluid outlet 223 at the optimized flow rate and flow rate. In different embodiments, the width of the second fluid outlet 223 may be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm and other sizes. The width of the second fluid outlet 223 is the distance between the outlet end 2434 of the third portion 2 43 and the second end cap 270.

[0062] The second end cap 270 may be bowl-shaped, conical, hemispherical, semi-ellipsoidal, or other similar recessed shapes, and the middle of the second end cap 270 is recessed toward the inside of the housing 230. The second end cap 270 can better guide the second fluid in the second fluid channel 201 to flow out of the body 200 along the second end cap 270. In this embodiment, the second end cap 270 is bowl-shaped. The second end cap 270 has a bottom surface 2702 and a side surface 2704 extending around the bottom surface 2702. The bottom surface 2702 is disposed perpendicular to the axis of the third portion 243, and the area of the bottom surface 2702 is less than The port area of the outlet end 2434 of the third portion 243. The side 2704 of the second end cap 270 has an included angle with the axis of the tube 240, and the included angle is 0-90 °. Further, the range of the included angle is 10-60 °. When the included angle is set within this range, the width of the second fluid outlet 223 can be reduced to a suitable range without making the depression of the second end cap 270 deep. In addition, the inclined side surface 2704 can have a better drainage effect on the second fluid, so that the second fluid flows out of the second fluid channel 201 along the side surface 2704. In different embodiments, specifically 20 °, 30 °, 40 °, or 50 ° can be selected. The angle between the side 2704 of the second end cap 270 and the axis of the tube 240 is greater than or equal to the inclination angle of the side wall of the third portion 243, that is, the inclination of the side 2 704 of the second end cap 270 is greater than or equal to the first The slope of the side wall of the three parts 243. In this embodiment, the angle between the side surface 2704 of the second end cap 270 and the axis of the tube body 240 is specifically set to 45 °. The second fluid in the second fluid channel 201 has to pass between the side 2704 of the second end cap 270 and the side wall of the third part 243. Then it flows out from the second fluid outlet 223.

[0063] The body 200 further includes a second connecting portion 274 and an external portion 272, the external portion 272 is connected to the housing 230, specifically, the external portion 272 is engaged with the housing 230, the external portion 272 and the housing 230 are provided between There is a second seal 260; the second end cap 270 is located in the outer portion 272, and the second end cap 270 is connected to the outer portion 272 through the second connecting portion 274. The second end cap 270, the second connecting portion 274 and the outer portion 272 are integrally formed. Of course, the three may also be independent of each other.

[0064] A third gap is provided between the outer portion 272 and the second end cap 270, and the third gap constitutes a confluent outlet 224, which is used for supplying the first fluid in the first fluid channel 101 and the second fluid channel 201 The second fluid inside merges and flows out. The shape of the confluence outlet 224 is ring-shaped, the width of the confluence outlet 224 is 1.5-6.5 mm, and when the width of the confluence outlet 224 is set within this range, the flow and velocity at the confluence outlet 224 can be optimized. In different embodiments, the width of the bus outlet 224 may be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm and other sizes.

[0065] Preferably, the width of the confluence outlet 224 is greater than the width of the first fluid outlet 222, less than or equal to the width of the first fluid outlet 222 and the width of the second fluid outlet 223. In this embodiment, the width of the first fluid outlet 222 is 2 mm, the width of the second fluid outlet 223 is 4 mm, and the width of the confluent outlet 224 is 5 mm.

[0066] The first fluid channel 101 of the body 200 is further provided with a heater 300, which can heat the first fluid in the first fluid channel 101 to make the first fluid exit the first fluid outlet 222 Becomes hot fluid. In this application, the first end cap 250 and the second end cap 270 are provided at both ends of the body 200, which can not only ensure the normal air inlet and outlet air in the second fluid channel 201, but also prevent the hand or other objects from reaching Two fluid channels 201. In this embodiment, a controller 500 is provided in the second fluid channel 201 of the body 200, and the controller 500 can control the operation of the heater 300. Setting the controller 500 in the second fluid channel 201 can further reduce the volume of the handle 100, and the presence of the first end cap 250 and the second end cap 270 can protect the controller 500 without affecting it The normal flow of the second fluid in the second fluid channel 201.

[0067] As shown in FIG. 6, in other embodiments, the hair drying device 10 may further include an air nozzle 900, and the user may install the air nozzle 900 as needed or not. The air nozzle 900 is detachably connected to the body 200.

[0068] In summary, the hair drying device 10 provided by the present application has a simple structure, and the first fluid channel 101 is in the first fluid The outlet 222 is narrowed. Compared with the prior art, the hair drying device 10 of the present application can increase the fluid flow rate at the first fluid outlet 222 without changing the fan assembly work rate of 400, which can It flows out at a greater speed and has a higher drying efficiency.

[0069] The above is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent transformation made by using the description and drawings of this application, or directly or indirectly used in related technical fields, are the same. The reason is included in the scope of patent protection of this application.

Claims

[Claim 1] A hair drying device, characterized by comprising a body, the body including a casing and a pipe body penetrating the casing, a first fluid channel is provided in the body, the The first fluid channel passes between the housing and the tube body; along the flow direction of the fluid in the first fluid channel, the tube body sequentially includes a first part, a second part, and a third part. The third part includes an inlet end and an outlet end, the inlet end is an end close to the second part, the outlet end is an end away from the second part, and a port of the outlet end is larger than a port of the inlet end .

[Claim 2] The hair drying device according to claim 1, wherein the side wall of the third portion is inclined with respect to the axis of the tube body, and the inclined angle is 0-90 °.

[Claim 3] The hair drying device according to claim 1, wherein the side wall of the third portion is inclined with respect to the axis of the tube body, and the inclined angle is 10-60 °.

[Claim 4] The hair drying device according to claim 1, characterized in that a first fluid outlet is provided between the outlet end of the third portion and the casing, and the first fluid outlet is The first fluid channel is in communication, and the first fluid outlet has a ring shape.

[Claim 5] The hair drying device according to claim 4, wherein the width of the first fluid outlet is 1.5-4 mm.

[Claim 6] The hair drying device according to claim 1, wherein the first part includes an open end disposed away from the second part, and a second fluid inlet is provided on the open end, the A second fluid outlet is provided on the outlet end of the third part, and the second fluid inlet communicates with the second fluid outlet to form a second fluid channel.

[Claim 7] The hair drying device according to claim 6, wherein the body further comprises a first end cap, the first end cap is provided at the open end of the first part, and the A first gap is provided between the first end cap and the first portion, and the first gap constitutes the second fluid inlet.

[Claim 8] The hair drying device according to claim 6, wherein the second fluid inlet has a ring shape.

[Claim 9] The hair drying device according to claim 6, wherein the second fluid inlet The width is 1 -6mm.

[Claim 10] The hair drying device according to claim 6, wherein the body further comprises a second end cap, the second end cap is provided at the outlet end of the third part, and the A second gap is provided between the second end cap and the outlet end of the third portion, and the second gap constitutes the second fluid outlet.

[Claim 11] The hair drying device according to claim 6, wherein the second fluid outlet has a ring shape.

[Claim 12] The hair drying device according to claim 6, wherein the width of the second fluid outlet is 1 to 6 mm.

[Claim 13] The hair drying device according to claim 10, wherein an angle is formed between the side surface of the second end cap and the axis of the tube body, and the angle of the included angle is 0- 90 °.

[Claim 14] The hair drying device according to claim 10, wherein the side surface of the second end cap has an angle with the axis of the tube body, and the angle of the angle is 10- 60 °.

[Claim 15] The hair drying device according to claim 10, wherein the body further includes a second connecting portion and an external portion, the external portion is connected to the housing; the second end The cover is located in the external connection part, and is connected to the external connection part through the second connection part.

[Claim 16] The hair drying device according to claim 10, wherein the body further comprises an external portion, the external portion is connected to the housing; the external portion and the second end A third gap is provided between the covers, and the third gap constitutes a confluent outlet for confluent and outflow of the first fluid in the first fluid channel and the second fluid in the second fluid channel .

[Claim 17] The hair drying device according to claim 16, wherein the shape of the confluence outlet is annular.

[Claim 18] The hair drying device according to claim 16, wherein the width of the confluence outlet is 1.5-6.5 mm.

[Claim 19] The hair drying device according to claim 1, wherein the side wall of the first portion is curved.

[Claim 20] The hair drying device according to claim 1, wherein the first part is a la In a pit shape, the large end of the first part is connected to one end of the housing, and the small end of the first part is connected to the second part.

[Claim 21] The hair drying device according to claim 1, wherein the second portion is cylindrical.

[Claim 22] The hair drying device according to claim 1, wherein the casing is cylindrical