Hair dryer

Abstract

The utility model discloses a hair drier. The blower comprises a blowing and sucking shell, functional components, a control panel and a radiator, the blowing and sucking shell comprises a wind generating shell and an air inlet shell which are connected with each other, an air inlet is formed in the air inlet shell, the functional components are used for generating wind and guiding wind, the functional components comprise a motor, a fan and an air rectifier, the fan is arranged in the wind generating shell, the control panel is arranged in the fan, and the radiator is arranged in the fan. At least part of the radiator is made of the first heat conduction material, at least part of the radiator extends to the air inlet shell or the radiator directly forms the air inlet shell, and therefore the heat dissipation effect and the heat dissipation efficiency of the radiator on the control panel are improved.

Description

Technical Field

[0001] The present application relates to an electric tool, in particular to a hair dryer. Background Art

[0002] A hair dryer in the related art can quickly clean fallen leaves, sand and gravel, etc. The hair dryer is a commonly used cleaning tool in parks, communities, streets and other places. Sanitation workers use the hair dryer to clean foreign objects on the ground with high efficiency and good cleaning effect.

[0003] As the power of hair dryers increases, the heat generated by the PCB used in hair dryers increases, which leads to more and more serious heat dissipation problems of PCB. If the heat generated by PCB cannot be dissipated in time, a high temperature environment will be generated near the PCB, thus affecting the normal operation of the PCB. Therefore, the heat dissipation problem of PCB has become a constraint on the power of the hair dryer.

[0004] Therefore, how to provide a hair dryer with good PCB heat dissipation effect is a technical problem that urgently needs to be solved.

[0005] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0006] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a controller of a hair dryer with good heat dissipation effect.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] A hair dryer comprises: a blowing and suction shell, the blowing and suction shell comprises a wind-generating shell and an air intake shell connected to each other, and an air inlet is formed on the air intake shell; functional components for generating and guiding wind, the functional components comprising: a motor for providing power; a fan driven by the motor to rotate around a fan axis to form an airflow in the blowing and suction shell; an air rectifier for guiding the airflow; a control board electrically connected to the motor; a radiator connected to the control board and mounted to the blowing and suction shell; the fan is arranged in the wind-generating shell; the radiator is at least partially made of a first heat-conducting material; the radiator at least partially extends to the air intake shell, or the radiator constitutes the air intake shell.

[0009] In some embodiments, the heat sink includes a first heat dissipation portion and a second heat dissipation portion, wherein the first heat dissipation portion is not exposed to the airflow flowing toward the functional component; the second heat dissipation portion is exposed to the airflow flowing toward the functional component, and the second heat dissipation portion extends to the air intake housing.

[0010] In some embodiments, the first heat dissipation portion is mounted to the outside of the wind-generating shell.

[0011] In some embodiments, all of the functional components are arranged in the wind-generating shell.

[0012] In some embodiments, the air intake housing includes an air intake hood and a noise reduction component laid on the inner wall surface of the air intake hood, and the radiator is at least partially embedded in the air intake hood and / or the noise reduction component.

[0013] In some embodiments, the blowing and suction shell forms a part of the air duct, and a part of the heat sink structure is exposed in the air duct.

[0014] In some embodiments, the air intake housing includes an air intake condenser, the air intake condenser includes a heat conducting portion made of a second heat conducting material, and the heat sink at least partially extends to the heat conducting portion.

[0015] In some embodiments, the heat sink is disposed on the outside of the air intake condenser and is in contact with the outer wall surface of the heat conducting portion.

[0016] In some embodiments, the radiator includes a second heat dissipation portion in a ring shape, and the second heat dissipation portion is located between the wind-generating shell and the air intake shell.

[0017] In some embodiments, the first heat dissipation portion is disposed on the outside of the blowing-suction housing.

[0018] In some embodiments, the second heat dissipation portion is made of a material with good thermal conductivity, and the blowing-suction housing and the second heat dissipation portion are made of different materials.

[0019] In some embodiments, the wind-generating shell and the radiator are clearance-matched.

[0020] In some embodiments, the air intake housing includes a sponge lining plate for supporting the noise reduction component, and the sponge lining plate is detachably connected to the radiator.

[0021] In some embodiments, the heat sink is an integrated box-shaped structure; or, the heat sink is a split structure composed of multiple parts.

[0022] In some embodiments, the air intake and wind gathering hood is an integrated annular structure; or, the air intake and wind gathering hood is a spliced ​​structure composed of multiple hood bodies.

[0023] In some embodiments, the noise reduction component is an integrated annular structure; or, the noise reduction component is a spliced ​​structure composed of multiple sponge blocks.

[0024] The benefits of this application are:

[0025] The hair dryer provided in the present application includes a blowing and suction shell, functional components, a control panel and a radiator. The blowing and suction shell includes a wind-generating shell and an air intake shell connected to each other. An air inlet is formed on the air intake shell. The functional components are used to generate and guide wind. The functional components include a motor, a fan and an air rectifier. The motor is used to provide power. The motor can drive the fan to rotate around the fan axis to form an airflow in the blowing and suction shell. The air rectifier is used to guide the airflow. The control panel is electrically connected to the motor. The radiator is adjacent to the control panel and installed to the blowing and suction shell. The hair dryer improves the heat dissipation effect and heat dissipation efficiency of the radiator on the control panel by arranging the fan in the wind-generating shell and making the radiator at least partially made of the first heat-conducting material. The radiator at least partially extends to the air intake shell or the radiator directly constitutes the air intake shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the assembly diagram of the hair dryer and the strap structure;

[0027] Figure 2 It is an exploded view of the hair dryer and the strap structure;

[0028] Figure 3 It’s an exploded view of a hair dryer;

[0029] Figure 4 It is the assembly diagram of the second part of the hair dryer;

[0030] Figure 5 yes Figure 4 A front view of the structure shown;

[0031] Figure 6 yes Figure 4 a cross-sectional view of the structure shown;

[0032] Figure 7 It is an exploded view of the second part of the hair dryer;

[0033] Figure 8 yes Figure 7 A front view of the structure shown;

[0034] Fig. 9 yes Figure 7 a cross-sectional view of the structure shown;

[0035] Fig.10 is a schematic diagram of the plane P and the second straight line of the second part;

[0036] Fig.11 is a cross-sectional view of the second part with plane P as the cross section;

[0037] Fig.12 yes Fig.11 The first schematic diagram of part A in the middle;

[0038] Fig.13 yes Fig.11 The second schematic diagram of part A in the middle;

[0039] Fig.14 yes Fig.11 The third schematic diagram in part A;

[0040] Fig.15 yes Fig.11 The fourth schematic diagram in part A of the middle;

[0041] Fig.16 yes Fig.11 The fifth schematic diagram of part A in the middle;

[0042] Fig.17 It is another embodiment of the blowing and sucking structure;

[0043] Fig.18 yes Fig.17 A cross-sectional view cut along plane P;

[0044] Fig.19 yes Fig.17 Exploded diagram of the blowing and suction structure;

[0045] Fig. 20 is a schematic diagram of assembling the first outer joint portion and the second outer joint portion;

[0046] Fig.21 is a schematic diagram of the first outer joint portion and the second outer joint portion being disassembled;

[0047] Fig. 22 yes Fig.18 A magnified view of part B;

[0048] Fig.23 is a schematic diagram of the first inner joint;

[0049] Fig.24 It is a schematic diagram of the third part;

[0050] Fig.25 yes Fig.21 A schematic diagram of the first outer joint portion and the second outer joint portion being closed;

[0051] Fig.26 This is an assembly diagram of the third part of the hair dryer and the housing from one perspective;

[0052] Fig. 27 This is the assembly diagram of the third part of the hair dryer and the housing from another perspective;

[0053] Fig.28 It is a schematic diagram of the first structure of the hair dryer;

[0054] Fig.29 yes Fig.28An exploded view of the structure shown;

[0055] Fig.30 This is an exploded view of the second structure of the third part of the hair dryer, the housing and the air inlet grille at one viewing angle;

[0056] Fig.31 This is an exploded view of the second structure of the third part of the hair dryer, the housing, and the air inlet grille from another perspective;

[0057] Fig.32 It is an exploded view of the second structure of the third part of the hair dryer;

[0058] Fig.33 is a cross-sectional view of a second structure of the third part of the hair dryer;

[0059] Fig.34 It is an assembly diagram of the third structure of the third part of the hair dryer at a certain viewing angle;

[0060] Fig.35 is an assembly diagram of the third structure of the third part of the hair dryer at another viewing angle;

[0061] Fig.36 It is the first exploded view of the third structure of the third part of the hair dryer;

[0062] Fig.37 It is the second exploded view of the third structure of the third part of the hair dryer;

[0063] Fig.38 It is a cross-sectional view of the third structure of the third part of the hair dryer.

[0064] Figures 1 to 38 middle:

[0065] 10. hair dryer; 101. first straight line; 102. central axis; 103. third straight line; 104. fan axis;

[0066] 100, housing; 160, plug-in protrusion;

[0067] 200. Blowing and suction structure;

[0068] 210. Part I; 211. Air outlet;

[0069] 220, second part; 221, first connecting part; 222, spiral part; 223, connector; 2231, spiral groove; 224, inner surface; 225, second connecting part; 226, outer surface;

[0070] 230, third part; 231, blowing and suction shell; 2311, air intake shell; 23111, air intake wind condenser; 23112, noise reduction member; 23113, screw column; 23114, fixing ring; 23115, air inlet; 23116, boundary; 2312, wind-generating shell; 232, functional component; 2321, motor; 2322, fan; 2323, air rectifier; 233, radiator; 2331, first heat dissipation part; 2332, second heat dissipation part; 234, control board; 2301, first edge; 2302, fifth protrusion;

[0071] 240, air inlet grille;

[0072] 251, first joint; 2511, first outer joint; 25111, mounting opening; 25112, positioning hole; 25113, first screw hole; 25114, first groove; 25115, fourth protrusion; 25116, second groove; 25117, third groove; 2512, second outer joint; 25121, connecting pin; 25122, positioning pin; 25123, second screw hole; 2513, first inner joint; 25131, first protrusion; 25132, step; 25133, second protrusion; 25134, third protrusion;

[0073] 252, second joint portion; 2521, third outer joint portion; 2522, fourth outer joint portion; 2523, second inner joint portion;

[0074] 270, hair dryer;

[0075] 20. Shoulder strap structure; 201. Plug hole; 202. Battery installation position; 203. Electrical connector. DETAILED DESCRIPTION

[0076] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0077] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0078] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0079] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0080] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0081] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0082] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0083] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0084] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0085] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0086] like Figures 1 to 29 As shown, the present application provides a hair dryer 10, which is used to generate airflow to push objects such as fallen leaves and stones. The hair dryer 10 is often used in the field of cleaning roads, gardens, etc. Figure 3 As shown, the blowing and suction structure 200 includes a first part 210, a second part 220 and a third part 230 connected in sequence. The third part 230 is used to take in and make wind, the second part 220 is used to connect the first part 210 and the third part 230, and the first part 210 is mainly used to guide the formed wind and realize the wind discharge. The hair dryer 10 also includes a housing 100, and the housing 100 can be connected to the blowing and suction structure 200, and the housing 100 can also form a receiving space to accommodate at least part of the blowing and suction structure 200.

[0087] In this embodiment, the second part 220 includes a central axis 102, which is equivalent to the second straight line hereinafter. The first part 210 has the first straight line 101 as the central axis, the second part 220 has the second straight line as the central axis, and the third part 230 has the third straight line 103 as the central axis.

[0088] Continue to refer to Figure 3 As shown, the first part 210 includes an air duct 270, which is a cylindrical structure with openings at both ends. A connecting portion is formed at one end of the air duct 270, through which the air duct 270 and one end of the second part 220 can be connected. An air outlet 211 is formed at the other end of the air duct 270, and wind formed in the third part 230 flows out from the air outlet 211 after being guided by the second part 220 and the first part 210.

[0089] In some embodiments, continue to refer to Figure 3 As shown, the air cylinder 270 is roughly cylindrical, and the end of the air cylinder 270 forms a conical structure with a gradually decreasing cross-sectional area along the air outlet direction, so that the air outlet 211 is a bell mouth.

[0090] In some embodiments, the hair dryer 270 is a spliced ​​structure formed by coaxially connecting multiple cylindrical structures. The overlapping length between two adjacent cylindrical structures can be adjusted and can be locked after being adjusted to a suitable length, so that the overall length of the hair dryer 270 is adjustable, thereby improving the flexibility of use of the hair dryer 10.

[0091] Continue to refer to Figures 3 to 16 As shown, in order to facilitate the user to adjust the air outlet 211, the second part 220 can be bent. In other words, the second part 220 can be deformed to achieve straightening or bending. The second part 220 includes an inner surface 224, and the inner surface 224 forms a channel for air flow. Figures 10 to 16 As shown, there is a plane P passing through the second straight line. On the plane P, the point on the inner surface 224 farthest from the second straight line is the first point F, and the point on the inner surface 224 closest to the second straight line is the second point E. The difference in distance between the first point F and the second point E to the second straight line is the distance difference d, and the distance difference d is less than or equal to 8 mm. This arrangement makes the second part 220 including the inner surface 224 have fewer wrinkles, thereby reducing the resistance in the air duct, thereby reducing the energy consumption of the hair dryer 10 when working, reducing the use cost, and increasing the air output.

[0092] For any plane P passing through the second straight line, in some embodiments, the distance difference d is less than or equal to 5 mm; in some embodiments, the distance difference d is less than or equal to 3 mm; in some embodiments, the distance difference d is less than or equal to 2 mm; in some embodiments, the distance difference d is less than or equal to 1 mm. For any plane P passing through the second straight line, when the value of the distance difference d is smaller, the inner surface 224 of the second part 220 is smoother, and the inner surface 224 of the second part 220 produces less resistance to airflow.

[0093] In one embodiment, for any plane P passing through the second straight line, the section formed by the plane P passing through the cross section of the second portion 220 on the inner surface 224 is a straight line. In this case, the inner surface 224 is smoother and the resistance that the air needs to overcome when passing through the inner surface 224 is smaller.

[0094] Compared with the prior art, in which the wind resistance is increased due to the spiral structure being protruded in the air duct by directly setting the second part as a spiral structure, the hair dryer 10 provided in the present application sets the second part 220 as a first connecting part 221 and a spiral part 222 which are nested inside and outside, the first connecting part 221 is sleeved in the spiral part 222, and an air duct for air to pass through is formed by the inner surface of the first connecting part 221. Since the difference in distances between the first point F and the second point E on the inner surface of the first connecting part 221 and the second straight line is the distance difference d, and the distance difference d is less than or equal to 8 mm, the resistance in the air duct is reduced, thereby reducing the energy consumption of the hair dryer 10 during operation and reducing the cost of use.

[0095] In a specific embodiment, Fig.12 As shown, the inner surface 241 is substantially smooth. The second portion 220 includes a first connecting portion 221 and a spiral portion 222, the spiral portion 222 is coiled outside the first connecting portion 221, and the inner surface of the first connecting portion 221 forms the inner surface 224 of the second portion 220, and the inner surface 224 is substantially smooth.

[0096] In a specific embodiment, Fig.13 As shown, micro protrusions are formed on the inner surface 224 .

[0097] In a specific embodiment, Fig.14 As shown, the second part 220 includes a first connecting portion 221, a spiral portion 222 and a second connecting portion 225, wherein the spiral portion 222 is coiled around the outside of the first connecting portion 221 and the second connecting portion 225 is wrapped around the outside of the spiral portion 222, so that the outer surface 226 of the second part 220 is substantially smooth.

[0098] In a specific embodiment, Fig.15 As shown, the second part 220 includes a first connecting part 221, a spiral part 222 and a second connecting part 225, the spiral part 222 is coiled on the outside of the first connecting part 221, the second connecting part 225 is wrapped on the outside of the spiral part 222, tiny protrusions are formed on the inner surface 224, and the outer surface 226 of the second part 220 is basically smooth.

[0099] In a specific embodiment, Fig.16 As shown, the cross section of the second portion 220 cut along the plane P is substantially corrugated.

[0100] In some embodiments, the first connecting portion 221 and the spiral portion 222 are integrally formed structures, that is, when manufacturing the second portion 220, the first connecting portion 221 and the spiral portion 222 can be integrally formed in a molten state. Of course, in other embodiments, the first connecting portion 221 and the spiral portion 222 can also be formed separately, and after being formed separately, the first connecting portion 221 and the spiral portion 222 are assembled together by bonding or the like.

[0101] The first connecting portion 221 and the spiral portion 222 can be made of metal or non-metal. In a specific embodiment, the first connecting portion 221 is made of thermoplastic polyurethane (TPU). Of course, in other embodiments, other soft materials can also be used to make the first connecting portion 221, as long as the bendability of the second portion 220 is not affected.

[0102] The spiral portion 222 may be a structure made of a single material or a composite structure made of multiple materials. In some embodiments, the spiral portion 222 is a layered structure, and the spiral portion 222 includes at least one of a metal layer and a plastic layer. In a specific embodiment, the spiral portion 222 is a single-layer structure, which includes a metal layer or a plastic layer; in another embodiment, the spiral portion 222 is a double-layer structure, and includes a metal layer and a plastic layer arranged in layers, and the layered arrangement here can be an upper and lower layered arrangement, or an inner and outer layered arrangement; in another embodiment, the spiral portion 222 is a multi-layer structure of not less than three layers, and the metal layer and the plastic layer are alternately arranged in layers, and the layered arrangement here can be an upper and lower layered arrangement, or an inner and outer layered arrangement. In one embodiment, a thermoplastic process is used during processing, for example, the material is heated to a molten state, extruded and wound on a cylinder, and the first connecting portion 221 and the spiral portion 222 are formed into a cylindrical structure, and then cooled after molding. In other embodiments, the first connecting portion 221 and the spiral portion 222 can also be molded separately and then coiled together through other processes.

[0103] The first connecting portion 221 may be a structure made of a single material, or a composite structure made of multiple materials. In one embodiment, the first connecting portion 221 is a layered structure, and the first connecting portion 221 includes at least a TPU layer.

[0104] In order to achieve quick connection between the second part 220 and the first part 210 or the third part 230, in some embodiments, the hair dryer also includes a connecting head 223, which is used to connect with the first part 210 or the third part 230, and the connecting head 223 is sleeved on the outer side of the end of the first connecting part 221.

[0105] like Figures 4 to 9As shown, the connector 223 is a cylindrical structure, and the connector 223 is plugged with the connection structure of the first part 210 above, or the connector 223 is plugged with the third part 230. Further, two connectors 223 are provided, and the two connectors 223 are respectively sleeved at both ends of the first connecting portion 221, one of the connectors 223 is used to plug with the first part 210, and the other connector 223 is used to plug with the third part 230, so that the assembly efficiency is improved. It should be noted that the connector 223 here cannot be straightened or bent, so it does not belong to the second part 220. The second part 220 of this article is greater than 50 mm.

[0106] In some embodiments, the end of the spiral portion 222 is embedded in the connector 223. Specifically, a spiral groove 2231 is formed on the inner wall surface of the connector 223, and the end of the spiral portion 222 can be inserted into the spiral groove 2231. This arrangement improves the connection strength between the spiral portion 222 and the connector 223 and reduces the chance of accidental detachment of the connector 223.

[0107] In some embodiments, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is greater than or equal to 5 mm and less than or equal to 50 mm. In some embodiments, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is greater than or equal to 10 mm and less than or equal to 20 mm. In a specific embodiment, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is 10 mm; in a specific embodiment, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is 14 mm; in a specific embodiment, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is 17 mm; in a specific embodiment, the spacing a between two adjacent turns of the spiral portion 222 in the natural extension state is 20 mm.

[0108] In some embodiments, the overall length b of the first connecting portion 221 in the natural extension state is 100 mm-500 mm. In a specific embodiment, the overall length b of the first connecting portion 221 in the natural extension state is 100 mm; in a specific embodiment, the overall length b of the first connecting portion 221 in the natural extension state is 200 mm; in a specific embodiment, the overall length b of the first connecting portion 221 in the natural extension state is 300 mm; in a specific embodiment, the overall length b of the first connecting portion 221 in the natural extension state is 400 mm; in a specific embodiment, the overall length b of the first connecting portion 221 in the natural extension state is 500 mm.

[0109] In some embodiments, the thickness H of the first connecting portion 221 in the naturally extended state is less than or equal to 3 mm. In some embodiments, the thickness H of the first connecting portion 221 in the naturally extended state is less than or equal to 2 mm.

[0110] It should be noted that the spacing a and the overall length b here are measured when the spiral portion 222 is in a naturally extended state. In the naturally extended state, for example, the spiral portion 222 is placed horizontally on a mirror plane, and the overall length b or spacing a of the spiral portion 222 is not changed by gravity or an external force applied by humans.

[0111] In some embodiments, a coating is provided on the inner surface of the first connecting portion 221, and the coating may be an antifouling coating or a lubricating coating. The provision of the coating can further reduce the roughness of the inner surface of the first connecting portion 221, thereby further reducing wind resistance. In one embodiment, the coating is a nano material layer.

[0112] Figures 17 to 25 Another embodiment of the blowing and suction structure 200 of the hair dryer 10 is shown. Figures 17 to 21 Zhongyu Figures 1 to 9 The parts with the same reference numerals in the disclosed embodiments have the same structure and the same features, so they will not be described repeatedly. Figures 17 to 21 The embodiment shown is Figures 1 to 9 Different parts of the embodiment shown.

[0113] The blowing and suction structure 200 includes a first part 210, a second part 220 and a third part 230, wherein the second part 220 can be bent, and the third part 230 includes a fan 2322, and the rotation of the fan 2322 forms an airflow, which flows out from the air outlet 211. In this embodiment, the second part 220 and the third part 230 are installed together through the first joint part 251, and the second part 220 and the first part 210 are installed together through the second joint part 252. In other words, Figures 1 to 9 The connector 223 in the embodiment shown becomes the first joint portion 251 and the second joint portion 252 in this embodiment. The connector 223 and the first joint portion 251 have the same function, which is to fix the second portion 220 to the first portion 210 and the third portion 230 respectively. The connector 223 and the first joint portion 251 are both provided with a threaded structure to be spirally matched with the spiral portion 222.

[0114] like Fig.19As shown, the first joint portion 251 includes a first outer joint portion 2511, a second outer joint portion 2512 and a first inner joint portion 2513. The first inner joint portion 2513 extends into one end of the bendable second portion 220, and the outer contour of the first inner joint portion 2513 is formed with a first protrusion 25131, which can be in a threaded shape or a non-threaded shape. When the first protrusion 25131 is in a threaded shape, the first protrusion 25131 is spirally matched with the spiral portion 222. The first outer joint portion 2511, the second outer joint portion 2512 and the first inner joint portion 2513 are all made of rigid materials, such as plastic.

[0115] The specific structure of the second part 220 in this embodiment is Fig.12 The same as shown, that is, the spiral portion 222 is coiled outside the first communication portion 221. Fig.18 The cross-sectional view and Fig. 22 As shown in the partial enlarged view, since the second part 220 is deformable, or has a certain flexibility, when the first protrusion 25131 extends into the opening of the second part 220, even if the spiral part 222 is coiled outside the first connecting part 221, the first protrusion 25131 can still form a spiral fit with the first connecting part 221. In this embodiment, the first protrusion 25131 and the spiral part 222 are spirally matched, and the flexible first connecting part 221 is squeezed and deformed, so that the first inner joint part 2513 and the second part 220 achieve a preliminary spiral fit.

[0116] Combination Fig. 20 and Fig.21The first outer joint 2511 and the second outer joint 2512 form a pivotable connection. When the first outer joint 2511 and the second outer joint 2512 are closed, the first inner joint 2513, the second part 220 and the third part 230 can be locked. The second outer joint 2512 is provided with a connecting pin 25121, and the first outer joint 2511 is provided with an installation opening 25111. The connecting pin 25121 penetrates the installation opening 25111, so that the first outer joint 2511 can rotate around the central axis of the connecting pin 25121, thereby realizing the opening or closing of the first outer joint 2511 and the second outer joint 2512. A positioning pin 25122 is provided on the side of the second outer joint 2512 opposite to the connecting pin 25121, and a positioning hole 25112 is provided on the first outer joint 2511. The positioning pin 25122 extends into the positioning hole 25112, so that the first outer joint 2511 and the second outer joint 2512 can be accurately positioned before being locked. A first screw hole 25113 is provided on the first outer joint 2511, and a second screw hole 25123 is provided on the second outer joint 2512. When the first outer joint 2511 and the second outer joint 2512 are closed, the first screw hole 25113 and the second screw hole 25123 are aligned, and the user can lock the first outer joint 2511 and the second outer joint 2512 by screwing.

[0117] like Figure 21 to Figure 23 As shown, the inner surfaces of the first outer joint portion 2511 and the second outer joint portion 2512 have similar structures, and the first outer joint portion 2511 is used as an example for description. The first outer joint portion 2511 has a first groove 25114, and the outer contour of the first inner joint portion 2513 is formed with a second protrusion 25133, and the first groove 25114 can limit the movement of the second protrusion 25133 in the front-back direction. The outer contour of the first inner joint portion 2513 is formed with a third protrusion 25134, and the third protrusion 25134 extends into the first outer joint portion 2511 and / or the second outer joint portion 2512, so that the first inner joint portion 2513 is accurately positioned with the first outer joint portion 2511 and / or the second outer joint portion 2512. The inner surface of the first outer joint portion 2511 forms a raised fourth protrusion 25115 , and a second groove 25116 is formed between the two fourth protrusions 25115 . The second groove 25116 accommodates the spiral portion 222 , so that the first outer joint portion 2511 limits the axial movement of the second part 220 .

[0118] like Figure 24 to Figure 25 As shown, the third portion 230 has a first edge 2301 (see Fig.24), a fifth protrusion 2302 is provided near the first edge 2301, and a third groove 25117 is provided on the inner surface of the first outer joint portion 2511. The fifth protrusion 2302 and the third groove 25117 form a shape match to prevent the third part 230 from moving along the axis or rotating around the axis. Fig. 22 and Fig.23 The first inner joint portion 2513 includes a step portion 25132 , and the step portion 25132 surrounds and wraps the first edge 2301 .

[0119] The technical solution described above realizes that the first joint portion 251 locks the second part 220 and the third part 230 together, prevents the second part 220 and the third part 230 from axial movement, and prevents the third part 230 from rotating around the third straight line 103. The second joint portion 252 locks the first part 210 and the second part 220. The second joint portion 252 includes a third outer joint portion 2521, a fourth outer joint portion 2522 and a second inner joint portion 2523. Their working principles are similar to those of the first joint portion 251, which will not be described in detail. It should be noted that the second joint portion 252 can also be locked by a principle different from that of the first joint portion 251, which is not limited here.

[0120] like Figure 26 to Figure 31 As shown, the third part 230 includes a blowing and suction shell 231, a functional component 232 and a radiator 233. The blowing and suction shell 231 includes a wind-generating shell 2312 and an air intake shell 2311 which are connected to each other. The air intake shell 2311 is a shell part for air to enter, and an air inlet 23115 is formed on the air intake shell 2311. The wind-generating shell 2312 is a shell surrounding the functional component 232. The functional component 232 is at least used to generate wind, so the functional component 232 at least includes a fan 2322. In one embodiment, the functional component 232 also includes a motor 2321, and the motor 2321 drives the fan 2322 to rotate.

[0121] In this embodiment, the functional component 232 includes a motor 2321, a fan 2322 and an air rectifier 2323. The motor 2321 is at least partially disposed in the wind-generating housing 2312 and is used to provide power. The fan 2322 is at least partially disposed in the wind-generating housing 2312. The motor 2321 can drive the fan 2322 to rotate around the fan axis 104 to form an airflow in the blowing and suction housing 231. The air rectifier 2323 is at least partially disposed in the wind-generating housing 2312, and the air rectifier 2323 is used to guide the airflow. The control board 234 is electrically connected to the motor 2321 and is used to control the operation of the motor 2321. The radiator 233 is connected to the control board 234 and is installed on the blowing and suction housing 231. The radiator 233 is used to accelerate the heat dissipation of the control board 234.

[0122] In this embodiment, the first straight line 101 is also the central axis of the wind tube 270, and the second straight line is the central axis of the first connecting portion 221 and the spiral portion 222. In one embodiment, the third straight line 103 may coincide with the fan axis 104. In some embodiments, the functional components 232 are all arranged in the wind-generating housing 2312. In a specific embodiment, the motor 2321 is completely arranged in the wind-generating housing 2312, and part of the structure of the fan 2322 is arranged in the wind-generating housing 2312; in another specific embodiment, part of the structure of the motor 2321 is arranged in the wind-generating housing 2312, and the fan 2322 is completely arranged in the wind-generating housing 2312. It should be noted that the front and rear positions of the motor 2321 and the fan 2322 can be reversed, that is, in the direction of the third straight line 103, the motor 2321 can be located in front of the fan 2322, or it can be located behind the fan 2322.

[0123] Continue to refer to Fig.28 and Fig.29 As shown, in some embodiments, the air intake housing 2311 includes an air intake condenser 23111, which is trumpet-shaped and has openings at both ends. The large opening end of the air intake condenser 23111 is formed with an air inlet, and the small opening end of the air intake condenser 23111 is formed with an air outlet, so that the air can be concentrated and the air can enter the air intake housing 2311 more easily. In some embodiments, the air intake condenser 23111 is an integrated annular structure; in some other embodiments, the air intake condenser 23111 is a spliced ​​structure composed of multiple hoods.

[0124] In some embodiments, at least a portion of the air intake hood 23111 is made of a second thermally conductive material having good thermal conductivity. The first thermally conductive material may be metal or other materials. As long as they have good thermal conductivity, they are within the protection scope of the present application. It should be noted that the second thermally conductive material and the first thermally conductive material may be the same material or different materials. This application is only for the convenience of introduction, so "first thermally conductive material" and "second thermally conductive material" are used to distinguish. In some embodiments, the air intake hood 23111 includes a thermally conductive portion made of a second thermally conductive material, and the heat sink 233 at least partially extends to the thermally conductive portion. In some embodiments, the air intake hood 23111 includes a thermally conductive portion made of a second thermally conductive material, and the heat sink 233 constitutes the air intake housing 2311.

[0125] Continue to refer to Fig.31As shown, the blowing and suction housing 231 also includes an air inlet mesh cover 240, which is arranged at the air inlet. The air inlet mesh cover 240 is formed with a solid part and a mesh part. The mesh part allows air to enter the air inlet hood 23111, and the solid part can prevent foreign matter from entering the air inlet hood 23111 along with the air, which is beneficial to reducing the failure rate of the hair dryer 10. In some embodiments, continue to refer to Fig.26 As shown, the air inlet grille 240 is detachably connected to the housing 100, and the detachable connection method includes but is not limited to a connector connection, a snap connection, etc.

[0126] Continue to refer to Fig.32 As shown, in some embodiments, the air intake hood 23111 is a split structure, the wind-generating housing 2312 is used to connect with the air intake hood 23111, and a support structure for supporting the motor 2321 is formed in the wind-generating housing 2312, and the fan 2322 and the motor 2321 are both installed in the wind-generating housing 2312. In some embodiments, the wind-generating housing 2312 is a plastic part.

[0127] Continue to refer to Fig.37 As shown, in some embodiments, the air intake hood 23111 consists of two parts, and a fixing ring 23114 and a screw column 23113 are respectively provided at the joint of the two parts. The screw passes through the fixing ring 23114 and is threadedly connected in the screw column 23113 to realize the assembly of the two parts.

[0128] It should be supplemented that the air intake hood 23111, the wind generating shell 2312 and the air intake mesh hood 240 can be an integrally formed part or a spliced ​​structure composed of multiple parts.

[0129] In the embodiment of the present application, the radiator 233 is at least partially made of the first heat-conducting material, and the radiator 233 at least partially extends to the air inlet housing 2311. Compared with the technical solution of the prior art that only realizes heat dissipation of the control board by air convection, the hair dryer 10 provided in the embodiment of the present application accelerates the heat conduction at the control board 234 by making the radiator 233 at least partially made of the first heat-conducting material, and by making the radiator 233 at least partially extend to the air inlet housing 2311, the air flow speed at the air inlet housing 2311 is faster, thereby further accelerating the heat conduction at the control board 234, so that the hair dryer 10 improves the heat dissipation effect and heat dissipation efficiency of the radiator 233 on the control board 234 as a whole.

[0130] In some embodiments, the entire structure of the heat sink 233 is made of a first thermally conductive material with good thermal conductivity. The first thermally conductive material can be metal or other materials. As long as they have good thermal conductivity, they are within the protection scope of this application.

[0131] In some embodiments, the heat sink 233 is an integrated structure; in some other embodiments, the heat sink 233 is a split structure consisting of multiple parts.

[0132] Figures 26 to 38 The radiator 233 is described in detail. Fig.28 and Fig.29 An embodiment of a heat sink 233 is disclosed, Figure 30 to Figure 33 Another embodiment of the heat sink 233 is disclosed. Figure 34 to Figure 38 Yet another embodiment of the heat sink 233 is disclosed.

[0133] like Fig.28 and Fig.29 The figure shows an embodiment of the radiator 233. In this embodiment, the radiator 233 is a box-shaped structure that is covered outside the controller. The control board 234 is arranged in the internal mounting cavity of the radiator 233. The radiator 233 is arranged on the outside of the air intake condenser 23111 as a whole. At least the wall surface of the radiator 233 contacts the outer surface of the air intake condenser 23111. By arranging the radiator 233 on the outside of the air intake condenser 23111, the arrangement of the radiator 233 will not interfere with the air duct formed in the air intake condenser 23111, thereby reducing the wind resistance in the air duct, so that the control board 234 can be cooled without affecting the overall efficiency of the hair dryer 10.

[0134] In a specific embodiment, continue to refer to Fig.29 As shown, the radiator 233 includes a first heat dissipation part 2331 and a second heat dissipation part 2332. The first heat dissipation part 2331 is in a cubic shape and a box-like structure, and the second heat dissipation part 2332 is in a heat dissipation fin shape. The outer wall surfaces of the first heat dissipation part 2331 and the second heat dissipation part 2332 close to the air intake hood 23111 are all in contact with part of the outer annular surface of the air intake hood 23111.

[0135] In another specific embodiment, the radiator 233 is roughly annular in structure, and the radiator 233 is sleeved outside the air intake hood 23111, so that the inner annular surface of the radiator 233 contacts the outer annular surface of the air intake hood 23111.

[0136] like Figure 30 to Figure 33Another embodiment of the heat sink 233 is shown. In this embodiment, the heat sink 233 includes a first heat sink 2331 and a second heat sink 2332. The first heat sink 2331 is not exposed to the airflow flowing to the functional component 232; the second heat sink 2332 is exposed to the airflow flowing to the functional component 232, and the second heat sink 2332 extends to the air intake housing 2311. In a specific embodiment, the first heat sink 2331 is in a cubic and box-like structure, and the second heat sink 2332 is in a heat sink fin shape.

[0137] That is to say, in the direction of the third straight line 103, the edge of the second heat dissipation portion 2332 does not exceed the boundary 23116 of the air intake housing 2311. That is, the edge of the second heat dissipation portion 2332 may coincide with the boundary 23116 of the air intake housing 2311, or may be located inside the boundary 23116 of the air intake housing 2311. When the edge of the second heat dissipation portion 2332 coincides with the boundary 23116 of the air intake housing 2311, it is beneficial to increase the heat dissipation area of ​​the radiator 233. In one embodiment, along the direction of the third straight line 103, the entire structure of the second heat dissipation portion 2332 is located inside the boundary 23116 of the air intake housing 2311, that is, the edge of the radiator 233 is located inside the boundary 23116 of the air intake housing 2311. Such a configuration can increase the heat dissipation area and minimize the interference of the radiator 233 with the installation of other components. In one embodiment, the first heat dissipation portion 2331 may exceed the boundary 23116 of the air intake housing 2311. In one embodiment, the first heat dissipation portion 2331 is completely installed to the outside of the wind-generating shell 2312.

[0138] Continue to refer to Fig.31 As shown, in a specific embodiment, the air intake housing 2311 includes, in addition to the air intake hood 23111, a noise reduction member 23112 laid on the inner wall of the air intake hood 23111, and the radiator 233 is installed outside the air intake hood 23111, and the radiator 233 is at least partially embedded in the air intake hood 23111 and / or the noise reduction member 23112. Such an arrangement makes at least part of the structure of the radiator 233 closer to the air duct in the air intake hood 23111, which is conducive to accelerating the heat conduction efficiency, and the noise reduction member 23112 is used to reduce noise. In a specific embodiment, the noise reduction member 23112 is a sponge; of course, in other specific embodiments, the noise reduction member 23112 can also be made of other materials.

[0139] Continue to refer to Fig.31As shown, in a specific embodiment, the surface of the heat sink 233 facing the central axis of the air intake condenser 23111 is flush with the surface of the noise reduction member 23112 facing the central axis of the air intake condenser 23111. This arrangement prevents the heat sink 233 from protruding into the air duct, does not increase wind resistance, and is conducive to reducing the working energy consumption of the hair dryer 10.

[0140] Continue to refer to Fig.33 As shown, in a specific embodiment, the blowing and suction shell 231 forms a partial air duct, and a partial structure of the radiator 233 is exposed in the air duct, for example, the second heat dissipation portion 2332 is exposed in the air duct. Such an arrangement enables a partial structure of the radiator 233 to directly contact the wind in the air duct, which is beneficial to further improve the heat dissipation effect. It should be noted that a mounting notch can be partially formed correspondingly in the air intake hood 23111 and the noise reduction component 23112, and a partial structure of the radiator 233 is filled in the mounting notch, and the inner wall surface of the radiator 233 located on the inner side of the mounting notch is flush with the inner annular surface of the noise reduction component 23112, and the outer wall surface of the radiator 233 located on the outer side of the mounting notch is flush with the outer annular surface of the air intake hood 23111, or the outer wall surface of the radiator 233 located on the outer side of the mounting notch protrudes from the outer annular surface of the air intake hood 23111.

[0141] In one specific embodiment, the noise reduction member 23112 is an integral ring structure. Fig.32 As shown, the noise reduction component 23112 is a spliced ​​structure composed of multiple sponge blocks.

[0142] like Figure 34 to Figure 38 The figure shows another embodiment of the radiator 233. In this embodiment, the radiator 233 is roughly annular in structure, and the radiator 233 is directly mounted between the wind-generating shell 2312 and the air intake shell 2311. Such a configuration enables the radiator 233 to be directly installed without modifying the structure of other components of the hair dryer 10.

[0143] In a specific embodiment, Fig.34 and Fig.35 As shown, part of the structure of the radiator 233 is located in the air duct formed by the blowing and suction housing 231, and part of the structure is located outside the blowing and suction housing 231. Fig.36As shown, the radiator 233 includes a second heat dissipation portion 2332 in an annular shape, a first heat dissipation portion 2331 in a plate shape and arranged outside the second heat dissipation portion 2332, and a connecting plate for connecting the second heat dissipation portion 2332 and the first heat dissipation portion 2331. The second heat dissipation portion 2332 is arranged in the blowing and suction shell 231 and is sleeved at the connection between the air intake shell 2311 and the wind-generating shell 2312. The connecting plate passes through the gap between the air intake shell 2311 and the wind-generating shell 2312, so that the first heat dissipation portion 2331 can be placed outside the air intake shell 2311 and the wind-generating shell 2312. In a specific embodiment, the first heat dissipation portion 2331 is arranged outside the blowing and suction shell 231.

[0144] In order to realize the positioning of the second heat dissipation part 2332 of the radiator 233, a limiting ring groove is formed on the inner wall surface of the air intake condenser 23111 and the wind generating shell 2312, and the second heat dissipation part 2332 of the radiator 233 is limited in the installation groove formed by splicing two limiting ring grooves. Such a setting can improve the installation stability of the radiator 233 and facilitate rapid assembly.

[0145] In a specific embodiment, at least a portion of the heat sink 233 is made of a third thermally conductive material with good thermal conductivity. It should be noted that the third thermally conductive material and the second thermally conductive material and the first thermally conductive material can be the same material or different materials. This application is only for the convenience of introduction, so "first thermally conductive material", "second thermally conductive material" and "third thermally conductive material" are used to distinguish. In a specific embodiment, the second heat dissipation portion 2332 is an annular structure made of good thermally conductive material. For example, the second heat dissipation portion 2332 can be a metal part, such as an aluminum ring. In another specific embodiment, the blowing and suction shell 231 and the second heat dissipation portion 2332 are made of different materials.

[0146] In a specific embodiment, continue to refer to Fig.36 As shown, the wind-generating housing 2312 and the second heat dissipating portion 2332 of the annular structure are gap-matched, and such a configuration reduces the difficulty of assembly. In order to ensure the assembly strength, after the wind-generating housing 2312, the radiator 233 and the air intake condenser 23111 are plugged and matched, a connector can be used between the wind-generating housing 2312 and the air intake condenser 23111 to achieve a detachable connection.

[0147] In a specific embodiment, continue to refer to Fig.37As shown, the air intake housing 2311 includes an air intake condenser 23111, a noise reduction member 23112, and a sponge lining plate (not shown) for supporting the noise reduction member 23112, and the sponge lining plate is detachably connected to the radiator 233. The detachable connection method includes but is not limited to screw connection, snap connection, etc. In a specific embodiment, the sponge lining plate is fastened to the radiator 233 by screws, so that the radiator 233 cannot be separated without removing the screws.

[0148] In addition to using the above-mentioned radiator 233 to accelerate the heat dissipation at the control board 234, in one embodiment, at least one of the air intake condenser 23111, the wind generating shell 2312 and the air intake mesh cover 240 can be made of a material with good thermal conductivity, so that the air intake condenser 23111, the wind generating shell 2312 and the air intake mesh cover 240 can be used as another radiator 233, so that the air intake condenser 23111, the wind generating shell 2312 and the air intake mesh cover 240 can all assist the heat conduction of the heating element on the control board 234. In another embodiment, in addition to the radiator 233, at least part of the structure of the control board 234 can also be directly placed in the air duct to achieve double heat dissipation.

[0149] Continue to refer to Figure 1 and Figure 2 As shown, in some embodiments, the hair dryer 10 is a backpack hair dryer, and the hair dryer 10 is fixed to the side of the user through a shoulder strap structure 20, so that the user can operate the hair dryer 10 flexibly and reduce the burden of operating the hair dryer 10 for the user.

[0150] In addition to the two straps, the strap structure 20 also includes an assembly structure for assembling with the housing 100 of the hair dryer 10. In some embodiments, Figure 2 and Fig. 27 As shown, the assembly structure is a plug hole 201, and the housing 100 is provided with a plug protrusion 160, and the plug protrusion 160 and the plug hole 201 are plugged and matched to realize the assembly of the shoulder strap structure 20 and the hair dryer 10. When storing, the hair dryer 10 and the shoulder strap structure 20 can be disassembled and stored separately. Of course, in other embodiments, the setting positions of the plug protrusion 160 and the plug hole 201 can be interchanged, that is, the plug hole 201 is set on the housing 100, and the plug protrusion 160 is set on the shoulder strap structure 20.

[0151] In some embodiments, a battery pack is also provided on the shoulder strap structure 20, and the battery pack can power the motor 2321 in the hair dryer 10, thereby improving the convenience of using electricity for the hair dryer 10. Figure 2As shown, two battery mounting positions 202 for mounting a battery pack are provided on the shoulder strap structure 20, and the battery pack is installed in the battery mounting position 202 by plugging. It should be noted that some electrical connectors 203 are also provided in the shoulder strap structure 20, so that after the battery pack is installed in the battery mounting position 202, the battery pack can directly power the hair dryer 10 by touching the power button.

[0152] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A hair dryer, comprising: A blowing and suction shell, the blowing and suction shell comprising a wind-generating shell and an air intake shell connected to each other, and an air intake port is formed on the air intake shell; Functional components, used for generating and guiding wind, including: Motor, used to provide power; A fan, driven by the motor to rotate around a fan axis to form an airflow in the blowing and suction housing; An air rectifier for directing the airflow; A control board, electrically connected to the motor; a radiator connected to the control panel and mounted to the blowing and suction housing; It is characterized in that The fan is arranged in the wind-generating housing; The heat sink is at least partially made of a first thermally conductive material; The radiator at least partially extends to the air intake housing, or the radiator constitutes the air intake housing; The heat sink includes a first heat sink and a second heat sink, wherein the first heat sink is not exposed to the airflow flowing toward the functional component; the second heat sink is exposed to the airflow flowing toward the functional component, and the second heat sink extends to the air intake housing.

2. The hair dryer according to claim 1, characterized in that: The first heat dissipation portion is installed to the outside of the wind generating shell.

3. The hair dryer according to claim 1, characterized in that: All of the functional components are arranged in the wind-generating shell.

4. The hair dryer according to claim 1, characterized in that: The air intake housing comprises an air intake condenser and a noise reduction component laid on the inner wall surface of the air intake condenser, and the radiator is at least partially embedded in the air intake condenser and / or the noise reduction component.

5. The hair dryer according to claim 1, characterized in that: The blowing and suction shell forms a part of the air duct, and a part of the structure of the radiator is exposed in the air duct.

6. The hair dryer according to claim 1, characterized in that: The air intake housing comprises an air intake condenser, the air intake condenser comprises a heat conducting portion made of a second heat conducting material, and the heat sink at least partially extends to the heat conducting portion.

7. The hair dryer according to claim 6, characterized in that: The heat sink is arranged on the outer side of the air intake condenser and contacts the outer wall surface of the heat conduction part.

8. The hair dryer according to claim 1, characterized in that: The radiator includes the second heat dissipation portion which is annular, and the second heat dissipation portion is located between the wind generating shell and the air intake shell.

9. The hair dryer according to claim 8, characterized in that: The first heat dissipation portion is arranged on the outer side of the blowing and suction housing.

10. The hair dryer according to claim 8, characterized in that: The blowing and suction shell and the second heat dissipation part are made of different materials.

11. The hair dryer according to any one of claims 4, 6 and 7, characterized in that The air intake hood is an integrated annular structure; Alternatively, the air intake and wind gathering hood is a spliced ​​structure composed of multiple hood bodies.

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