Folding electric hair dryer

Abstract

A folding electric hair dryer, comprising an air outlet portion (1) and a holding portion (2), wherein the air inlet end of the air outlet portion (1) is rotatably connected to the air outlet end of the holding portion (2) by means of an inclined surface connecting structure (3); the inclined surface connecting structure (3) enables the whole state of the electric hair dryer to be switched between a bent state and a linear state; the holding portion (2) comprises a housing (21); a heating assembly (221), a fan (222), and an inner filter screen (224) are sequentially mounted in the housing (21); an outer filter screen assembly (24) is provided on the end of the housing (21) away from the air outlet portion (1); an end of the housing (21) is connected to a display assembly (25); a U-shaped slot (244) is formed on one side of the outer filter screen assembly (24); the U-shaped slot (244) is used for being assembled with the display assembly (25) in a nested mode. The heating assembly (221) and the fan (222) are mounted in the holding portion (2), so that the length of the air outlet portion (1) can be greatly reduced; when it is needed to mount a fitting (4) on the air outlet portion (1) and use the fitting and the air outlet portion together, the whole length would also be greatly reduced, and people can conveniently use the hair dryer.

Description

A folding hair dryer Technical Field

[0001] The utility model belongs to the technical field of hair care tools, in particular to a folding hair dryer. Background Art

[0002] A hair dryer is one of the commonly used tools for hair care. To facilitate the selection of more functions during use, straight-barrel rotatable hair dryers have appeared on the market. For example, Chinese patent document CN211459143U discloses a portable rotatable hair dryer. The hair dryer barrel and the handle are connected in a circumferential direction relative to each other. The hair dryer barrel and the handle can be rotated and fixed in a vertical state or a bent state. Different states can meet different needs of users.

[0003] Usually, this type of hair dryer can be used in conjunction with different nozzle accessories. In the above document, the air outlet portion is relatively long when in the folded state. After assembling different nozzle accessories at the air outlet end of the hair dryer, the combined length of the hair dryer and the accessories becomes even longer. When in use, the user must hold the handle far away from the head hair, which is not convenient for people to use. In addition, the overall size of the existing product is long, making it inconvenient to carry and store. Utility Model Content

[0004] The purpose of the present utility model is to provide a foldable hair dryer to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A foldable hair dryer comprises an air outlet and a grip, wherein the air inlet end of the air outlet and the air outlet end of the grip are rotatably connected via an inclined connection structure, and the inclined connection structure enables the overall state of the hair dryer to switch between a curved shape and a straight shape;

[0007] The gripping portion comprises a shell, in which a heating component, a fan and an inner filter are sequentially installed, and an outer filter component is arranged at one end of the shell away from the air outlet.

[0008] A further technical solution is that a display assembly is connected to the end of the shell, and a U-shaped slot is provided on one side of the outer filter assembly, and the U-shaped slot is used for nesting and assembling with the display assembly.

[0009] A further technical solution is that the outer filter assembly includes a secondary filter body and a primary filter body, both of which are provided with a U-shaped slot. The secondary filter body is clamped on the lower side of the display assembly, and the primary filter body is clamped on the upper side of the display assembly. An air inlet gap is formed between the primary filter body and the secondary filter body.

[0010] According to a further technical solution, the shortest length of the shell is D, one side of the shell is aligned with the axis of the display assembly, and a plurality of operating buttons are provided along the longitudinal direction of the axis.

[0011] According to a further technical solution, fine pores are distributed on the periphery of the secondary filter body, and air inlet holes are distributed on the periphery of the primary filter body, wherein the aperture of the air inlet holes is larger than the aperture of the fine pores.

[0012] According to a further technical solution, the secondary filter body and the primary filter body are detachably connected via a magnetic structure.

[0013] According to a further technical solution, a center hole is provided in the middle of the bottom of the first-level filter body and the second-level filter body, and the center hole can be used for the power cord assembly to pass through.

[0014] According to a further technical solution, an inner shell is provided in the shell, the inner shell extends from the end of the shell and is connected to the display assembly, and the secondary filter body is connected to the inner shell by bolt fasteners.

[0015] A further technical solution is to provide a noise reduction net inside the air outlet.

[0016] According to a further technical solution, the noise reduction net includes a fixed ring, and at least two air-cutting blades are provided in the fixed ring, and several of the air-cutting blades are arranged in parallel.

[0017] According to a further technical solution, the fixing ring is provided with a plurality of wind-cutting blades, and the plurality of wind-cutting blades form a grid shape.

[0018] According to a further technical solution, a plurality of air cutting blades are provided in the fixing ring, and the plurality of air cutting blades form a plurality of hexagonal guide holes.

[0019] According to a further technical solution, the longitudinal width G of the air cutting blade is equal to or greater than 7 mm.

[0020] According to a further technical solution, the length D of the shell is equal to or greater than 80 mm.

[0021] According to a further technical solution, the shortest length A of the air outlet is equal to or greater than 20 mm.

[0022] In a further technical solution, the width F of the air outlet portion is in the range of 40 to 45 mm, and the shortest length A of the air outlet portion is <F。

[0023] In a further technical solution, a locking structure is provided on one side of the air outlet portion having a length of A. In a further technical solution, a second locking structure is provided on one side of the housing having a length of E.

[0024] According to a further technical solution, the longest length of the air outlet is B, the longest length of the shell is E, and the length of the outer filter assembly is C, and the values ​​satisfy each other: (E+C) / A>=7, (E+C) / B>=3.

[0025] According to a further technical solution, the outer surfaces of the housing, the outer filter assembly (24) and the display assembly form a continuous and smooth transition surface.

[0026] According to a further technical solution, the folding angle formed by the air outlet portion and the grip portion is greater than 90°.

[0027] According to a further technical solution, a mounting groove is provided at one end of the air outlet portion away from the grip portion, and the mounting groove is used for mounting accessories.

[0028] Beneficial effects of the utility model:

[0029] The utility model can greatly shorten the length of the air outlet part by installing the heating component and the fan in the grip part. When accessories need to be installed on the air outlet part for use together, the overall length will also be greatly shortened, which is convenient for people to use. In addition, the temperature, usage time and other information can be seen through the display screen, which is more fashionable and beautiful. By providing a U-shaped card slot adapted to it on the outer filter assembly, the display assembly can be fixed and the overall length of the grip part can be shortened.

[0030] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1: A schematic diagram of the utility model with the nozzle accessory in a bent state.

[0032] Figure 2: A schematic diagram comparing the vertical state and the bent state of the utility model.

[0033] Figure 3: A three-dimensional cross-sectional view of the present invention.

[0034] Figure 4: Disassembled diagram of the outer filter assembly of the present invention.

[0035] Figure 5: Structural diagram of a vibration damping net embodiment of the present invention.

[0036] Figure 6: Structural diagram of the second embodiment of the vibration damping net of the present invention.

[0037] Figure 7: Schematic diagram of the third structure of the vibration reduction net of the present invention.

[0038] Figure 8: Schematic diagram of the three-structure disassembly of the vibration damping net of the present invention.

[0039] Figure 9: Schematic diagram of the nested assembly structure of the air inlet filter assembly, the housing and the display assembly of the present invention.

[0040] Figure 10: Schematic diagram of the inner shell of the utility model passing through the outer shell and connecting to the power cord assembly.

[0041] Figure markings: 1-air outlet, 11-shell, 12-noise reduction net, 121-fixing ring, 122-wind cutting blade, 13-installation slot, 14-locking structure one, 2-grip, 21-shell, 221-heating component, 222-fan, 223-vibration damping sleeve, 224-inner filter, 23-electric control element, 24-outer filter assembly, 241-first-stage filter body, 242-secondary filter body, 243-air inlet gap, 244-U-shaped slot, 245-air inlet hole, 246-magnetic component, 247-first fixing hole, 25-display assembly, 26-locking structure two, 3-slant connection structure, 4-accessory, 5-power cord assembly, 6-inner shell, 61-second fixing hole. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0043] Please refer to Figure 1-10;

[0044] The foldable hair dryer described in the present invention is intended to reduce the length of the air outlet portion 1 and the length of the entire product (the air outlet portion 1 and the grip portion 2) during use, thereby facilitating the storage and carrying of the product and making it more convenient to use when used with the accessory 4. The hair dryer specifically comprises an air outlet portion 1 and a grip portion 2, wherein one end of the air outlet portion 1 is rotatably connected to one end of the grip portion 2 via an inclined connection structure 3, and the inclined connection structure 3 enables the air outlet portion 1 to switch between a curved shape and a straight shape relative to the grip portion 2. In this embodiment, the air outlet portion 1 and the grip portion 2 are cylindrical or similar in shape as a whole. When in use, the air outlet portion 1 is rotated 180° relative to the grip portion 2 by rotating the midpoint of the inclined connection structure 3 as the center point, thereby forming a folded state. The inclined connection structure 3 can refer to the relevant structure in the Chinese patent document CN211459143U and will not be described in detail here.

[0045] The gripping portion 2 includes a shell 21, in which a heating component 221, a fan 222 and an inner filter 224 are sequentially installed. Compared with the patent document CN211459143U in which the heating component 221 is installed in the air outlet 1, the utility model can greatly shorten the length of the air outlet 1 by installing the heating component 221 in the gripping portion 2. When it is necessary to install the accessories 4 on the air outlet 1 for use together, the overall length will also be greatly shortened, which is convenient for people to use. Of course, a vibration-damping sleeve 223 can be provided on the periphery of the fan 222; in addition, an inner filter 224 is provided at the end of the fan 222 to play the role of guiding and reducing noise; the fan 222 has a fan blade (not shown in the figure), and the fan blade is located at the upstream end of the fan 222 The inner filter 224 is located at the upstream end of the fan blade, and the heating component 221 is adjacent to the downstream end of the inner filter 224. The heating component 221 (patent document CN211459143U, which is already the existing technology) is evenly separated longitudinally by the mica insulation sheet (not shown in the figure) to form a plurality of guide channels parallel to the longitudinal axis. A heating wire (not shown in the figure) is wrapped radially around the mica insulation sheet assembly. The heating component 221 not only heats the passing fluid, but also plays the role of guiding and reducing noise. The heating component 221, the fan 222 and the inner filter 224 are distributed in a longitudinal straight line in sequence in the shell 21. The structure is compact and the space utilization rate is high. At the same time, the fluid is fully guided and the noise reduction function is fully performed.

[0046] Furthermore, a display assembly 25 is provided at the end of the shell 21, the electronic control element 23 is installed in the shell 21 and fixed on the inner shell 6, the shell 21 partially covers the inner shell 6, the inner shell 6 passes through the end of the shell 21 and is connected to the display assembly 25, and the display assembly 25 is also connected to the shell 21. The display assembly 25 in this embodiment includes a display screen (not marked in the drawings) connected to the electronic control element 23. The temperature value, wind speed gear or wind speed value, negative separation function and other information can be viewed on the display screen, which is more fashionable, beautiful and practical. An outer filter assembly 24 is also installed at the end of the shell 21. A U-shaped card groove 244 that is adapted to the shape of the display assembly 25 is provided on one side of the outer filter assembly 24. When installed, the outer filter assembly 24 completely covers the exposed electronic control element 23 and the inner shell 6 and is connected to the shell 21. At the same time, the display assembly 25 is embedded in the U-shaped card groove 244 for clamping and fixing.

[0047] Furthermore, the outer surfaces of the display component 25, the shell 21 and the outer filter component 24 have a continuous and smooth transition. The outer edge of the upstream end of the display component 25 is a smooth semicircular shape, which together with the two side edges forms a U-shaped semi-circular runway shape. The outer filter component 24 is provided with a U-shaped slot 244, and the two are nested with each other. Although this structure sacrifices the air inlet area of ​​the outer filter component 24, that is, reduces the number of air inlet holes 245, it shortens the overall length of the grip 2, which is one of the problems to be solved by the present invention.

[0048] Since the display component 25 is arranged at the end of the shell 21, firstly, it avoids opening a hole in the shell 21 to reduce the difficulty of installation. Secondly, the length of the shell 21 can be shortened, and then covered by the outer filter component 24. At the same time, by providing a U-shaped card groove adapted to it on the outer filter component 24, the display component 25 can be fixed and the overall length of the grip 2 can be shortened.

[0049] 2, in this embodiment, the shortest length of the air outlet 1 is A, the longest length of the air outlet 1 is B, the width of the air outlet 1 is F, the shortest length of the housing 21 is D, the longest length of the housing 21 is E, and the length of the outer filter assembly 24 is C. The above values ​​satisfy each other: F value range is 40 to 45 mm, A<F,C> =A*2, B>C, D>=C*2, E>=B*2, (E+C) / A>=7, (E+C) / B>=3; In conjunction with Figure 1 , it can be seen that a plurality of operation buttons (not marked in the drawing) distributed longitudinally are provided on one side of the shell 21 having a length of D and aligned with the axial centerline direction of the display assembly 25. This structural design ensures that when the product of the present invention is used in a bent state, the plurality of operation buttons and the display assembly 25 can be oriented toward the side of the human face, facilitating operation and viewing by the user. At the same time, in the use state of Figure 1 , the locking structure 14 and the second locking structure 26 are cleverly obscured from the observer's field of view, thereby increasing the beauty of the product. That is, the present invention arranges the second locking structure 26 on the side of the shell 21 having a length of E, and arranges the locking structure 14 on the side of the air outlet 1 having a length of A. Therefore, the installation position of the locking structure 14 constrains the length value of A to be equal to or greater than 20 mm, and the plurality of operation buttons distributed longitudinally on the side wall of the shell 21 constrains the length value of D to be equal to or greater than 80 mm.

[0050] One embodiment of the outer filter assembly 24 of the present invention specifically includes a secondary filter body 242 and a primary filter body 241, both of which are provided with a U-shaped slot 244. The secondary filter body 242 is snap-connected to the lower side of the display assembly 25, and the primary filter body 241 is snap-connected to the upper side of the display assembly 25. Specifically, the primary filter body 241 is sleeved on the outer side of the secondary filter body 242. When installed, the U-shaped slot 244 of the primary filter body 241 and the U-shaped slot 244 of the secondary filter body 242 contact the display assembly 25 at different positions. When the display assembly 25 is observed in a horizontal state, the connection position of the secondary filter body 242 is at the lower side, and the connection position of the primary filter body 241 is at the upper side. The display assembly 25 is limited by two positions to improve the firmness.

[0051] In addition, an air inlet gap 243 is formed between the first-level filter body 241 and the second-level filter body 242, wherein the first-level filter body 241 is provided with air inlet holes 245 on its periphery, and the second-level filter body 242 is provided with fine pores (not shown in the drawings) on its periphery. The aperture of the air inlet holes 245 is larger than that of the fine pores. The first-level filter body 241 can prevent larger particles of dust and debris from entering while ensuring the air intake volume. The second-level filter body 242 further filters fine dust to prevent it from entering the housing 21 and adhering to the electronic control element 23 to cause a short circuit or affect performance. It cooperates with the inner filter 224 to form a three-level filtration to prevent dust accumulation in the fan 222.

[0052] 4 , in this embodiment, the secondary filter body 242 and the housing 21 are detachably mounted, but generally do not need to be disassembled. Since the primary filter body 241 is located on the outside and the aperture of the air inlet hole 245 is larger than the aperture of the pores of the secondary filter body 242, a lot of dust usually accumulates on the surface of the secondary filter body 242 after being used for a period of time, so it needs to be cleaned regularly. Therefore, the secondary filter body 242 and the primary filter body 241 are detachably connected by a magnetic structure, so that the primary filter body 241 can be quickly taken out for cleaning, and the surface of the secondary filter body 242 can be cleaned at the same time. Finally, the primary filter body 241 can be reinstalled, and the installation is also very convenient.

[0053] Specifically, magnetic parts 246 are provided at the bottom of the primary filter body 241 and the secondary filter body 242 respectively. The bottom of the primary filter body 241 and the secondary filter body 242 are fixed by the magnetic parts 246, and there is a gap between the two for air intake; the magnetic parts 246 can be a combination of a magnet and an iron block, or can be magnets, which is not limited here; the secondary filter body 242 is also provided with a first fixing hole 247, and the inner shell 6 is provided with a second fixing hole 61, which can be fixedly connected to the second fixing hole 61 through a bolt fastener (not shown in the drawings) to achieve the connection between the two; after the outer filter assembly 24 is fixedly connected to the shell 21 and the display assembly 25, the outer surfaces of the three form a continuous and smooth transition surface; a center hole (not shown in the drawings) is also provided in the middle of the bottom of the primary filter body 241 and the secondary filter body 242, for the power cord assembly 5 to pass through.

[0054] In an embodiment of the present utility model, a noise reduction net 12 is provided in the air outlet 1. The noise reduction net 12 cuts the passing airflow, reduces the noise caused by vibration, and achieves a noise reduction effect. In this embodiment, the noise reduction net 12 can be integrally formed with the outer shell 11 of the air outlet 1, or can be manufactured separately and then assembled.

[0055] One embodiment of the noise reduction net 12, referring to FIG5 , includes a fixing ring 121 , in which at least two air cutting blades 122 are provided, and the plurality of air cutting blades 122 are arranged in parallel;

[0056] 6 , another embodiment of the noise reduction net 12 includes a plurality of wind-cutting blades 122 disposed on a fixing ring 121 . The plurality of wind-cutting blades 122 form a grid.

[0057] Another embodiment of the noise reduction net 12, referring to Figures 7 to 8, a plurality of air cutting blades 122 are provided in the fixing ring 121, and the plurality of air cutting blades 122 form a plurality of hexagonal guide holes (not marked in the drawings). The length of a single guide hole, that is, the longitudinal width G of the air cutting blade 122 is equal to or greater than 7 mm. The value of the width G will affect the flow direction of the fluid after passing through the fixing ring 121. If the value of the width G is too small, such as 2 mm, the flow direction of the fluid after passing through the fixing ring 121 will be oblique. The larger the value of the width G, the more it can ensure that the flow direction of the fluid after passing through the fixing ring 121 is parallel to the axis of the air outlet 1.

[0058] 2 and 3 , and in combination with FIG8 , the longitudinal width G of the air cutting blade 122 in the fixing ring 121 is wider on the side where the shortest length A of the air outlet 1 is closer to the side where the shortest length A of the air outlet 1 is farther away from the side where the shortest length A of the air outlet 1 is narrower. This structure enables the fluid passing through the inclined connecting structure 3 to obtain a more uniform air volume and wind speed at the air outlet 1.

[0059] In the embodiment of the present invention, referring to FIG2 , the folding angle a formed by the air outlet portion 1 and the grip portion 2 is greater than 90°, preferably between 92° and 97°. When the angle between the air outlet portion 1 and the grip portion 2 is greater than 90°, taking the grip portion 2 as an example in a vertical state, the air outlet portion 1 is slightly tilted upwards. When the user uses the hair dryer by themselves, they do not need to lift the hair dryer too high to blow their hair, which makes the handheld device less tiring and more comfortable to use.

[0060] When the design of the inclined connection structure 3 remains unchanged, the angle can be adjusted by changing the inclination of the inclined connection structure 3. When the inclination angle of the inclined connection structure 3 is less than 45°, the final folding angle will be greater than 90°.

[0061] In an embodiment of the present invention, a mounting groove 13 is provided at one end of the air outlet 1 away from the grip 2, and the mounting groove 13 is used to install the accessory 4. A locking structure 14 for fixing the accessory 4 is provided on the air outlet 1, and a locking structure 26 for fixing the relative position of the air outlet 1 is provided on the grip 2.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A foldable hair dryer, comprising an air outlet portion (1) and a grip portion (2), wherein the air inlet end of the air outlet portion (1) and the air outlet end of the grip portion (2) are rotatably connected via an inclined connection structure (3), wherein the inclined connection structure (3) enables the overall state of the hair dryer to switch between a bent type and a straight type, and is characterized in that: The gripping portion (2) comprises a housing (21), wherein a heating component (221), a fan (222) and an inner filter (224) are sequentially installed in the housing (21), and an outer filter component (24) is located at an end of the housing (21) away from the air outlet portion (1).

2. A folding hair dryer according to claim 1, characterized in that: A display assembly (25) is connected to the end of the housing (21), and a U-shaped slot (244) is provided on one side of the outer filter assembly (24). The U-shaped slot (244) is used for nesting and assembling with the display assembly (25).

3. A folding hair dryer according to claim 2, characterized in that: The outer filter assembly (24) includes a secondary filter body (242) and a primary filter body (241), both of which are provided with a U-shaped slot (244). The secondary filter body (242) is snap-connected to the lower side of the display assembly (25), and the primary filter body (241) is snap-connected to the upper side of the display assembly (25). An air inlet gap (243) is formed between the primary filter body (241) and the secondary filter body (242).

4. A folding hair dryer according to claim 2, characterized in that: The shortest length of the housing (21) is D, one side of which is aligned with the axis of the display assembly (25), and a plurality of operating buttons are provided along the longitudinal direction of the axis.

5. The foldable hair dryer according to claim 3, characterized in that: Fine pores are distributed on the periphery of the secondary filter body (242), and air inlet holes (245) are distributed on the periphery of the primary filter body (241). The aperture of the air inlet holes (245) is larger than the aperture of the fine pores.

6. A folding hair dryer according to claim 3, characterized in that: The secondary filter body (242) and the primary filter body (241) are detachably connected via a magnetic attraction structure.

7. A folding hair dryer according to claim 3, characterized in that: A central hole is also provided in the center of the bottom of the primary filter body (241) and the secondary filter body (242), and the central hole can be used for the power cord assembly to pass through.

8. The foldable hair dryer according to claim 3, characterized in that: An inner shell (6) is provided in the shell (21), and the inner shell (6) extends out from the end of the shell (21) and is connected to the display assembly (25), and the secondary filter body (242) is connected to the inner shell (6) via bolt fasteners.

9. The foldable hair dryer according to claim 1, characterized in that: A noise reduction net (12) is provided in the air outlet portion (1).

10. The foldable hair dryer according to claim 9, characterized in that: The noise reduction net (12) comprises a fixing ring (121), at least two air cutting blades (122) are arranged in the fixing ring (121), and the plurality of air cutting blades (122) are arranged in parallel.

11. The foldable hair dryer according to claim 9, characterized in that: The fixing ring (121) is provided with a plurality of air cutting blades (122), and the plurality of air cutting blades (122) form a grid shape.

12. The foldable hair dryer according to claim 9, characterized in that: A plurality of air cutting blades (122) are provided in the fixing ring (121), and the plurality of air cutting blades (122) form a plurality of hexagonal guide holes.

13. A folding hair dryer according to any one of claims 10-12, characterized in that: The longitudinal width G of the air cutting piece (122) is equal to or greater than 7 mm.

14. A folding hair dryer according to claim 2, characterized in that: The length D of the housing (21) is equal to or greater than 80 mm.

15. The foldable hair dryer according to claim 2, characterized in that: The shortest length A of the air outlet portion (1) is equal to or greater than 20 mm.

16. The foldable hair dryer according to claim 14, characterized in that: The width F of the air outlet portion (1) is in the range of 40 to 45 mm, and the shortest length A of the air outlet portion (1) is <F。 17. The foldable hair dryer according to claim 2, characterized in that: A locking structure (14) is provided on one side of the air outlet portion (1) having a length A.

18. The foldable hair dryer according to claim 2, characterized in that: A second locking structure (26) is provided on one side of the housing (21) with a length E.

19. A folding hair dryer according to any one of claims 14 to 18, characterized in that: The longest length of the air outlet portion (1) is B, the longest length of the housing (21) is E, and the length of the outer filter assembly (24) is C, and the values satisfy the following conditions: (E+C) / A>=7, (E+C) / B>=3.

20. A foldable hair dryer according to claim 2, characterized in that: The outer surfaces of the housing (21), the outer filter assembly (24) and the display assembly (25) form a continuous and smooth transition surface.

21. A folding hair dryer according to any one of claims 1 to 9, characterized in that: The folding angle formed by the air outlet portion (1) and the grip portion (2) is greater than 90°.

22. The foldable hair dryer according to claim 1, characterized in that: An end of the air outlet portion (1) away from the grip portion (2) is provided with a mounting groove (13), and the mounting groove (13) is used for mounting an accessory (4).

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