Hair drier with bent ventilating duct

Abstract

The invention relates to an air blower with a bent ventilating duct, which comprises an air blower main body, the ventilating duct is arranged in the air blower main body, and an air inlet and a first air outlet which are communicated with the ventilating duct are respectively formed in two ends of the air blower main body; the part, close to the first air outlet, of the ventilation duct is a bent ventilation duct part in the arc direction, and the ventilation duct is sequentially provided with a fan assembly, a first air guide block, a heating assembly and a second air guide block between the air inlet and the first air outlet. The first air guide block, the heating assembly and the second air guide block are located on the bent air duct part, and the first air guide block and the second air guide block are the same as the bent air duct part in the arc-shaped direction. According to the blower with the bent ventilating duct disclosed by the invention, due to the design of the bent ventilating duct part of the blower, airflow is more uniformly distributed in the blower, so that more uniform heat distribution is provided.

Description

Technical Field

[0001] The invention relates to the field of hair dryer electrical appliances, and in particular to a hair dryer with a bent ventilation duct. Background Art

[0002] As a common household appliance, hair dryers are widely used in the field of personal care and beauty. Conventional hair dryers generally include a motor-driven fan for generating airflow, and one or more heating elements for heating the airflow.

[0003] However, there are some technical problems and shortcomings in the existing hair dryer design, which limit the performance and user experience of the hair dryer. First of all, the ventilation duct design of a traditional hair dryer is usually linear. Its linear body plus the handle make the overall contour shape T-shaped. This type of hair dryer is not convenient to store. In addition, the length of the handle is limited. The user has to hold the hair dryer high when using it. Holding it high for a long time will cause fatigue and affect the experience. In addition, although this design is simple, it has limitations in terms of airflow distribution and heat transfer. The linear ventilation duct may cause uneven heat distribution, causing some areas of the hair dryer to overheat when drying hair, while other areas may not be hot enough. In addition, the linear ventilation duct also limits the design flexibility of the hair dryer, which limits product innovation. Summary of the invention

[0004] The present invention provides a hair dryer with a bent air duct, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of the present invention is a hair dryer with a curved ventilation duct, comprising: a hair dryer main body, a ventilation duct is provided inside the hair dryer main body, an air inlet and a first air outlet connected to the ventilation duct are respectively provided at two ends of the hair dryer main body, a portion of the ventilation duct close to the first air outlet is a curved ventilation duct portion with an arc-shaped direction, the ventilation duct is provided with a fan assembly, a first air guide block, a heating assembly and a second air guide block in sequence between the air inlet and the first air outlet, the first air guide block, the heating assembly and the second air guide block are located in the curved ventilation duct portion, wherein the first air guide block and the second air guide block have the same arc-shaped direction as the curved ventilation duct portion.

[0006] Furthermore, the heating component includes a heating bracket and a heating wire arranged on the periphery of the heating bracket, the heating bracket is provided with a plurality of ventilation holes in the same direction as the airflow in the ventilation duct, at least one of the first air guide blocks is arranged at intervals in the bent ventilation duct portion to form at least two first ventilation branches, and at least one of the second air guide blocks is arranged at intervals in the bent ventilation duct portion to form at least two second ventilation branches, wherein the output end of the first ventilation branch faces the input end of the ventilation hole, the output end of the ventilation hole faces the input end of the second ventilation branch, and the output end of the second ventilation branch is connected to the first air outlet.

[0007] Furthermore, a plurality of linearly arranged serrations are provided on the periphery of the heating bracket, and both ends of the heating bracket are connected to an outer frame through connecting columns, and an installation notch is provided between the outer frame and the serrations, and the inner wall of the outer frame and the heating bracket enclose the plurality of ventilation openings, and a plurality of turns of the heating wire are correspondingly wound around the plurality of serrations, and the outer wall of the outer frame is correspondingly arranged to the inner wall of the bent ventilation duct portion.

[0008] Furthermore, the first air outlet is provided with an air guide, and a plurality of second air outlets connected to the first air outlet are provided on the outer circumference of the air guide, and a hemispherical protrusion is provided in the middle of a side of the air guide facing the first air outlet, and a hair detangling comb or other air nozzle accessories are detachably connected to the air guide via a magnetic part, and an air outlet duct is provided inside the hair detangling comb, and a third air outlet and comb teeth adjacent to the third air outlet are provided on the surface of the hair detangling comb acting on the head, and two ends of the air outlet duct are respectively connected to the second air outlet and the third air outlet, wherein the output end of the second ventilation branch in the middle part faces the protrusion, and the output ends of the second ventilation branches on both sides of the middle part face the second air outlet.

[0009] Furthermore, a control circuit board is provided between the fan assembly and the first air guide block of the ventilation duct, and the control circuit board divides the ventilation duct into a plurality of third ventilation branches. The fan assembly includes a frame, a motor and fan blades. The frame includes an annular channel and an installation cavity arranged in the middle of the annular channel. The motor is arranged on the installation cavity, and the motor shaft of the motor is connected to the fan blade. The outer periphery of the fan blade faces one end of the annular channel, and the outer wall of the frame is corresponding to the inner wall of the ventilation duct, wherein the two sides of the output end of the annular channel are respectively faced to the input end of each of the third ventilation branches.

[0010] Furthermore, a first soft rubber layer is provided between the outer wall of the frame and the inner wall of the ventilation duct, and a surface array of the first soft rubber layer is provided with a plurality of convex points, and the convex points and the inner wall of the ventilation duct abut against each other.

[0011] Furthermore, a cover is provided at one end of the hair dryer body, and the side walls of the cover are covered with a filter screen and an outer shell from the inside to the outside. A plurality of air inlets are provided in an array on the outer wall of the outer shell, and the first air outlet is provided at the end of the bent ventilation duct part at the other end of the hair dryer body.

[0012] Furthermore, the length of the bent ventilation duct portion is not less than one seventh of the total length of the ventilation duct.

[0013] Further, a plurality of the first air guide blocks are spaced apart in the bent ventilation duct portion to form a plurality of first ventilation branches, and a plurality of the second air guide blocks are spaced apart in the bent ventilation duct portion to form a plurality of second ventilation branches.

[0014] Furthermore, the angle between the central axis of the first air outlet and the inner side of the central axis of the air inlet ranges from 50 degrees to 140 degrees.

[0015] The beneficial effects of the present invention are:

[0016] The design of the curved ventilation duct portion of the hair dryer makes the airflow more evenly distributed inside the hair dryer, thereby providing a more even heat distribution and avoiding the problem of overheating in certain areas that may be caused by traditional straight ventilation ducts; the design of the curved ventilation duct portion makes the center of gravity of the hair dryer close to the product center, i.e., the handshake position, making it easier for the user to hold the hair dryer and improving the user experience; by providing a plurality of air guide blocks and vents, the present invention can achieve multiple even air distributions, further improving the uniformity of the hot air, while effectively improving the noise, so that the user can enjoy a more comfortable and efficient hair drying experience when using the hair dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a general schematic diagram of a hair dryer with a bent air duct according to an embodiment of the present invention.

[0018] Figure 2 4 is a schematic longitudinal section diagram of a hair dryer with a bent air duct according to an embodiment of the present invention.

[0019] Figure 3 is a schematic exploded view of a hair dryer with a bent air duct according to an embodiment of the present invention.

[0020] Figure 4 1 is a first angle detailed schematic diagram of a hair dryer with a curved air duct according to an embodiment of the present invention.

[0021] Figure 5 2 is a second angle detailed schematic diagram of a hair dryer with a curved air duct according to an embodiment of the present invention.

[0022] Figure 6Schematic diagram of a heating bracket and its external components according to an embodiment of the present invention.

[0023] Figure 7 is based on Figure 6 Schematic diagram of the longitudinal section of the AA section.

[0024] Figure 8 Detailed schematic diagram of a heating bracket and its external components according to an embodiment of the present invention.

[0025] Fig. 9 It is a general schematic diagram of assembling a hair dryer with a curved ventilation duct and a hair detangling comb according to an embodiment of the present invention.

[0026] Fig.10 a is a schematic diagram showing a first angle between the central axis of the first air outlet and the central axis of the air inlet of the hair dryer with a curved air duct according to an embodiment of the present invention.

[0027] Fig.10 b is a schematic diagram of a second angle between the central axis of the first air outlet and the central axis of the air inlet of the hair dryer with a curved ventilation duct according to an embodiment of the present invention.

[0028] Fig.10 c is a schematic diagram of a third angle between the central axis of the first air outlet and the central axis of the air inlet of the hair dryer with a curved ventilation duct according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0030] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, top, bottom, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0031] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used herein includes any combination of one or more related listed items.

[0032] It should be understood that, although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0033] Reference Figures 1 to 9 In some embodiments, the present invention discloses a hair dryer having a curved air duct, comprising:

[0034] Reference Figure 1 Combination Figure 2 The hair dryer body 100 shown in the figure has a ventilation duct 110 disposed inside the hair dryer body 100, and an air inlet 111 and a first air outlet 112 connected to the ventilation duct 110 are disposed at both ends of the hair dryer body 100. The hair dryer body 100 is in the shape of an elongated strip. The portion of the ventilation duct 110 close to the first air outlet 112 is a curved ventilation duct portion 119 with an arc-shaped direction. The user holds the middle and lower part of the hair dryer body 100 for use. Compared with the rod-shaped hair dryer body 100, the hair dryer body 100 with the curved ventilation duct portion 119 is easier for the user to hold.

[0035] Reference Figure 2 As shown, the ventilation duct 110 is provided with a fan assembly 200, a first air guide block 113, a heating assembly 300 and a second air guide block 114 in sequence between the air inlet 111 and the first air outlet 112, and the first air guide block 113, the heating assembly 300 and the second air guide block 114 are located in the bent ventilation duct portion 119. The hair dryer body 100 with the bent ventilation duct portion 119 is distributed with heavier fan assemblies 200 and heating assemblies 300 in a curve, and the heaviest fan assembly 200 mainly made of metal is arranged near the air inlet 111, and the middle and lower part of the hair dryer body 100 held by the user just corresponds to the fan assembly 200 with the largest counterweight, and the lighter heating assembly 300 is far away from the fan assembly 200. The center of gravity of the product is closer to the air inlet 111 than the center of gravity of the rod-shaped hair dryer body 100, which is why it is easy to hold the hair dryer with a bent ventilation duct.

[0036] Continue to refer to Figures 2 to 5As shown, the first air guide block 113 and the second air guide block 114 have the same arc-shaped direction as the curved ventilation duct portion 119. Since the fan assembly 200 is arranged near the air inlet 111 of the ventilation duct 110, the high-speed wind is evenly distributed in the curved ventilation duct portion 119 for the first time through the first air guide block 113, and then blown evenly after being heated by the heating assembly 300. Similarly, the heating assembly 300 evenly distributes the high-speed wind in the curved ventilation duct portion 119 for the second time. After the high-speed wind is evenly distributed in the curved ventilation duct portion 119 for the third time through the second air guide block 114, the high-speed wind is evenly output three times through the first air outlet 112 to output hot air with a uniform temperature for the user.

[0037] Reference Figures 2 to 8 As shown, the heating component 300 includes a heating bracket 310 and a heating wire 320 disposed on the periphery of the heating bracket 310. The heating bracket 310 is provided with a plurality of vents 311 in the same direction as the airflow of the ventilation duct 110. Figures 6 to 8 As shown, the multiple independent vents on the heating bracket 310 divide the high-speed wind of the bent ventilation duct part 119 into multiple branches. In addition, the bent ventilation duct part 119 is a straight part relative to the air inlet 111. The bend of the bent ventilation duct part 119 can slightly reduce the speed of the high-speed wind. Combined with the above-mentioned three-times evenly divided air air guide block and heating component 300, the hair dryer can output uniform hot air.

[0038] Reference Figure 2 Combination Figure 3 As shown, at least one of the first air guide blocks 113 is spaced apart in the curved ventilation duct portion 119 to form at least two first ventilation branches 190, and at least one of the second air guide blocks 114 is spaced apart in the curved ventilation duct portion 119 to form at least two second ventilation branches 180. The first air guide block 113 and the second air guide block 114 form a plurality of branches in the curved ventilation duct portion 119. A plurality of the first air guide blocks 113 are spaced apart in the curved ventilation duct portion 119 to form a plurality of first ventilation branches 190, and a plurality of the second air guide blocks 114 are spaced apart in the curved ventilation duct portion 119 to form a plurality of second ventilation branches 180. Specifically, after many tests, referring to Figures 2 to 3In the embodiment, three first air guide blocks 113 are arranged at intervals in the bent ventilation duct part 119 to form four first ventilation branches 190, and three second air guide blocks 114 are arranged at intervals in the bent ventilation duct part 119 to form four second ventilation branches 180. The output end of the first ventilation branch 190 faces the input end of the vent 311, the output end of the vent 311 faces the input end of the second ventilation branch 180, and the output end of the second ventilation branch 180 is connected to the first air outlet 112. The four first ventilation branches 190 and the second ventilation branches 180 are further subdivided into the bent ventilation duct part 119, and the numerous arc-shaped branches can cooperate with the multiple vents 311. The heating wire 320 on each vent can conduct heat to fully heat the high-speed wind, so that the utilization efficiency of each heating wire 320 on each sawtooth 3312 is the highest.

[0039] Reference Figures 6 to 8 As shown, the periphery of the heating bracket 310 is provided with a plurality of linearly arranged saw teeth 312, and the two ends of the heating bracket 310 are connected to the outer frame 314 through the connecting column 313, and the installation notch 315 is provided between the outer frame 314 and the saw teeth 312. The inner wall of the outer frame 314 and the heating bracket 310 enclose the plurality of the vents 311, and the plurality of coils of the heating wire 320 are correspondingly wound around the plurality of the saw teeth 312, and the outer wall of the outer frame 314 is correspondingly arranged with the inner wall of the bent ventilation duct part 119. The outer ends of the heating bracket 310 of the above structure are connected to the outer frame 314 through the connecting column 313, and the sizes of the outer frame 314 and the bent ventilation duct part 119 are adapted and fixed to each other. At the same time, the plurality of coils of the heating wire 320 are restricted on the installation notch 315 by the connecting columns, the outer frame 314 and the saw teeth 312 on both sides. Due to the restrictions of the above multiple components, it is not easy for the high-speed wind to blow through the heating wire 320 and to separate from the heating bracket 310.

[0040] Reference Figure 2 Combination Figure 4 As shown, the first air outlet 112 is provided with an air guide 400, and a plurality of second air outlets 410 connected to the first air outlet 112 are circumferentially arranged on the outer periphery of the air guide 400. The second air outlets 410 on the air guide 400 blow out from the outer periphery of the hair dryer, so that the user can receive more hot air over a wide range. A hemispherical protrusion 420 is provided in the middle of one side of the air guide 400 facing the first air outlet 112, wherein the output end of the second ventilation branch 180 in the middle part faces the protrusion 420, and the output ends of the second ventilation branches 180 on both sides of the middle part face the second air outlet 410. The protrusion helps to guide the first air outlet 112 to the outer second air outlet 410 on the air guide 400 for more uniform air discharge over a wide range. Continue to refer to Fig. 9As shown, the air guide member 400 is detachably connected to a hair detangling comb 900 or other air nozzle accessories via a magnetic member, an air outlet is provided inside the hair detangling comb 900, a third air outlet 910 and comb teeth 920 adjacent to the third air outlet 910 are provided on the surface of the hair detangling comb 900 acting on the head, both ends of the air outlet are connected to the second air outlet 410 and the third air outlet 910 respectively, the user can use the hair detangling comb to discharge air and the comb teeth to comb the hair, thereby increasing the function of the hair dryer and improving the user experience.

[0041] Reference Figures 2 to 5 As shown, the ventilation duct 110 is provided with a control circuit board 500 between the fan assembly 200 and the first air guide block 113, and the control circuit board 500 divides the ventilation duct 110 into two third ventilation branches 170. Figure 5 As shown, the fan assembly 200 includes a frame 210, a motor 220 and a fan blade 230. The frame 210 includes an annular channel 211 and an installation cavity arranged in the middle of the annular channel 211. The motor 220 is arranged on the installation cavity. The motor 220 shaft of the motor 220 is connected to the fan blade 230. The periphery of the fan blade 230 faces one end of the annular channel 211. The outer wall of the frame 210 is arranged corresponding to the inner wall of the ventilation duct 110. Among them, the output end of the annular channel 211 is halved on both sides and faces the input end of each of the third ventilation branches 170. The motor 220 adopts a high-speed motor with a speed of 100,000 revolutions per minute. The driving fan blades of this embodiment rotate to guide the high-speed airflow from the ventilation duct to be transported to the two third ventilation branches 170 for pre-arranged high-speed wind division, and then pass through the first air guide block 113 in sequence to evenly distribute the high-speed wind in the curved ventilation duct part 119, and then pass through the heating component 300 to heat the air evenly. Similarly, the heating component 300 once again evenly distributes the high-speed wind in the curved ventilation duct portion 119. After the high-speed wind is evenly distributed in the curved ventilation duct portion 119 for the third time through the second air guide block 114, the high-speed wind is evenly distributed more than three times through the first air outlet 112 to evenly output hot air with a uniform temperature for the user. In addition to evenly distributing the wind, the first air guide block 113 and the curved ventilation duct portion 119 can also reduce noise.

[0042] In order to achieve the effect of reducing noise when the fan assembly 200 rotates, refer to Figures 3 to 5As shown, a first soft rubber layer 240 is provided between the outer wall of the frame 210 and the inner wall of the ventilation duct 110, and a plurality of convex points 241 are arranged on the surface array of the first soft rubber layer 240, and the convex points 241 abut against the inner wall of the ventilation duct 110. The first soft rubber layer 240 can absorb the vibration when the fan assembly 200 rotates, and the convex points 241 prevent the first soft rubber layer 240 from fully contacting the inner wall of the ventilation duct 110 to transmit the vibration to the hair dryer body 100. The assembler overcomes the smaller friction force of the first soft rubber layer 240 compared with the first soft rubber layer without convex points 241, and it is easier to assemble in the ventilation duct 110, and at the same time, the fan assembly 200 is prevented from rigidly contacting the inner wall of the ventilation duct 110, which effectively reduces noise.

[0043] Reference Figures 2 to 5 As shown, a cover 120 is provided at one end of the hair dryer body 100, and the side wall of the cover 120 is covered with a filter 121 and an outer shell 122 from the inside to the outside. A plurality of air inlets 111 are provided in an array on the outer wall of the outer shell 122, and the first air outlet 112 is provided at the end of the bent ventilation duct part 119 at the other end of the hair dryer body 100. The air inlet 111 of this structure is effectively isolated from external dust by the filter 121, so that the interior of the hair dryer is cleaner.

[0044] In some embodiments, the length of the curved ventilation duct portion 119 is not less than one seventh of the total length of the ventilation duct 110. The curvature of the second air guide block 114 in the curved ventilation duct 110 is greater than the curvature of the first air guide block 113 in the curved ventilation duct 110.

[0045] In addition, refer to Fig.10 As shown, the angle between the central axis of the first air outlet 112 and the inner side of the central axis of the air inlet 111 is in the range of 50 degrees to 140 degrees. Fig.10 a and Fig.10 As shown in c, since the air outlet is designed to be at an angle of less than 90 degrees or greater than 90 degrees relative to the central axis of the air inlet, the user can blow the hair without holding the hair dryer high; of course, the central axis of the first air outlet 112 can also be relative to the central axis of the air inlet 111 as shown in Fig.10 As shown in b, the angles are designed to be perpendicular to each other.

[0046] The above is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation. As long as the technical effect of the present invention is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the scope of protection of the present disclosure. All should belong to the protection scope of the present invention. Within the protection scope of the present invention, its technical scheme and / or implementation method can have various modifications and changes.

Claims

1. A hair dryer with a curved ventilation duct, characterized in that: include: A hair dryer body (100), wherein a ventilation duct (110) is provided inside the hair dryer body (100), an air inlet (111) and a first air outlet (112) connected to the ventilation duct (110) are respectively provided at two ends of the hair dryer body (100), and a portion of the ventilation duct (110) close to the first air outlet (112) is a curved ventilation duct portion (119) with an arc shape, The ventilation duct (110) is provided with a fan assembly (200), a first air guide block (113), a heating assembly (300) and a second air guide block (114) in sequence between the air inlet (111) and the first air outlet (112); the first air guide block (113), the heating assembly (300) and the second air guide block (114) are located in the bent ventilation duct portion (119); The first air guide block (113) and the second air guide block (114) have the same arc-shaped orientation as the curved ventilation duct portion (119).

2. The hair dryer with a curved ventilation duct according to claim 1, characterized in that: The heating component (300) comprises a heating bracket (310) and a heating wire (320) arranged on the periphery of the heating bracket (310); the heating bracket (310) is provided with a plurality of ventilation holes (311) in the same direction as the airflow of the ventilation duct (110); At least one of the first air guide blocks (113) is arranged at intervals in the bent ventilation duct portion (119) to form at least two first ventilation branches (190), and at least one of the second air guide blocks (114) is arranged at intervals in the bent ventilation duct portion (119) to form at least two second ventilation branches (180). The output end of the first ventilation branch (190) faces the input end of the ventilation port (311), the output end of the ventilation port (311) faces the input end of the second ventilation branch (180), and the output end of the second ventilation branch (180) is connected to the first air outlet (112).

3. The hair dryer with a curved ventilation duct according to claim 2, characterized in that: The periphery of the heating bracket (310) is provided with a plurality of linearly arranged saw teeth (312); the two ends of the heating bracket (310) are connected to an outer frame (314) via connecting columns (313); a mounting notch (315) is provided between the outer frame (314) and the saw teeth (312); the inner wall of the outer frame (314) and the heating bracket (310) enclose the plurality of ventilation openings (311); a plurality of turns of the heating wire (320) are correspondingly wound around the plurality of saw teeth (312); and the outer wall of the outer frame (314) is correspondingly arranged to the inner wall of the bent ventilation duct portion (119).

4. The hair dryer with a curved ventilation duct according to claim 2, characterized in that: The first air outlet (112) is provided with an air guide (400), a plurality of second air outlets (410) connected to the first air outlet (112) are provided on the outer circumference of the air guide (400), and a hemispherical protrusion (420) is provided in the middle of a side of the air guide (400) facing the first air outlet (112). The air guide (400) is detachably connected to a hair comb (900) or other air nozzle accessories via a magnetic member, an air outlet is provided inside the hair comb (900), a third air outlet (910) and comb teeth (920) adjacent to the third air outlet (910) are provided on the surface of the hair comb (900) acting on the head, and two ends of the air outlet are respectively connected to the second air outlet (410) and the third air outlet (910). The output end of the second ventilation branch (180) in the middle portion faces the protruding portion (420), and the output ends of the second ventilation branches (180) on both sides of the middle portion face the second air outlet (410).

5. The hair dryer with a curved ventilation duct according to claim 2, characterized in that: The ventilation duct (110) is provided with a control circuit board (500) between the fan assembly (200) and the first air guide block (113), and the control circuit board (500) divides the ventilation duct (110) into a plurality of third ventilation branches (170). The fan assembly (200) comprises a frame (210), a motor (220) and a fan blade (230); the frame (210) comprises an annular channel (211) and a mounting cavity arranged in the middle of the annular channel (211); the motor (220) is arranged on the mounting cavity; the motor (220) shaft of the motor (220) is connected to the fan blade (230); the periphery of the fan blade (230) faces one end of the annular channel (211); the outer wall of the frame (210) is arranged corresponding to the inner wall of the ventilation duct (110); Wherein, two halves of the output end of the annular channel (211) are respectively oriented toward the input end of each of the third ventilation branches (170).

6. The hair dryer with a curved air duct according to claim 5, characterized in that: A first soft rubber layer (240) is provided between the outer wall of the frame (210) and the inner wall of the ventilation duct (110), and a plurality of convex points (241) are arranged in an array on the surface of the first soft rubber layer (240), and the convex points (241) and the inner wall of the ventilation duct (110) are mutually supported.

7. The hair dryer with a curved air duct according to claim 1, characterized in that: A cover body (120) is provided at one end of the hair dryer body (100); the side wall of the cover body (120) is covered with a filter (121) and an outer shell (122) from the inside to the outside; a plurality of air inlets (111) are provided in an array on the outer wall of the outer shell (122); and the first air outlet (112) is provided at the end of the bent ventilation duct part (119) at the other end of the hair dryer body (100).

8. The hair dryer with a curved air duct according to claim 1, characterized in that: The length of the bent ventilation duct portion (119) is not less than one seventh of the total length of the ventilation duct (110).

9. The hair dryer with a curved air duct according to claim 1, characterized in that: A plurality of the first air guide blocks (113) are arranged at intervals in the bent ventilation duct portion (119) to form a plurality of first ventilation branches (190), and a plurality of the second air guide blocks (114) are arranged at intervals in the bent ventilation duct portion (119) to form a plurality of second ventilation branches (180).

10. The hair dryer with a curved air passage according to claim 1, characterized in that: The angle between the central axis of the first air outlet (112) and the inner side of the central axis of the air inlet (111) is in the range of 50 degrees to 140 degrees.

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