Wind guide structure and hair styling device containing the same

Abstract

The embodiment of the present invention provides an air guide structure and a hair styling device including the same. The air guide structure includes: a shell extending in the front-to-back direction; a chamber formed in the shell and extending in the front-to-back direction; an air inlet formed at the rear end of the shell and connected to the chamber to allow airflow outside the shell to enter the chamber; M air outlets formed on the side wall of the shell and respectively connected to the chamber to allow airflow in the chamber to leave the chamber; a star-shaped spiral shaft arranged in the chamber and extending in the front-to-back direction, the star-shaped spiral shaft includes M air guide surfaces arranged in sequence along its axial direction and corresponding to the M air outlets respectively, to guide the airflow in the chamber to the M air outlets respectively; M is a positive integer greater than or equal to 3. By providing a star-shaped spiral shaft with an air guide surface, the path and time of the airflow guiding to the front air outlet can be shortened, thereby reducing or eliminating the difference in air outlet temperature at each air outlet, so that the air outlet temperature distribution of each air outlet is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of hair styling equipment, and in particular to an air guide structure and a hair styling equipment comprising the same. Background Art

[0002] A hair dryer comb is a popular hair styling tool in recent years. In the prior art, a hair dryer comb generally has an air guide structure, and the air guide structure includes a shell, a plurality of air outlet holes arranged on the circumference of the shell and arranged in sequence along the axial direction of the shell, and an air guide member arranged in the shell and suitable for guiding airflow to the air outlet holes.

[0003] However, due to the unreasonable setting of the air guide, in actual use, the air outlet temperatures of the various air outlet holes arranged along the axial direction of the shell of the air guide structure will vary greatly. For example, in some hair dryers, the air supply system is located at the rear end of the air guide structure, and the airflow needs to reach the front end of the air guide structure along the axial direction of the shell before flowing to the air outlet holes on the peripheral side of the air guide structure. As a result, the air outlet temperature at the rear end along the axial direction of the shell is the highest, the air outlet temperature at the front end along the axial direction of the shell is the second highest, and the air outlet temperature at the middle air outlet hole along the axial direction of the shell is the lowest, which results in uneven air outlet temperatures of the various air outlet holes arranged along the axial direction of the shell, thereby affecting the blowing and styling effects. Summary of the invention

[0004] An embodiment of the present invention provides an air guide structure and a hair styling device comprising the same. By providing a star-shaped spiral shaft with an air guide surface, the airflow from the air inlet can be guided to each air outlet hole in sequence, thereby shortening the path and time of the airflow guiding the front air outlet holes (the second to fourth air outlet holes), especially the path and time of the airflow guiding the air outlet holes (the second and third air outlet holes) located in the middle of the air outlet path, thereby reducing or eliminating the difference in air outlet temperature at each air outlet hole, so that the distribution of the air outlet temperature of each air outlet hole is more uniform.

[0005] To this end, the embodiment of the present invention provides the following technical solutions:

[0006] One aspect of an embodiment of the present invention is to provide an air guide structure. The air guide structure includes: a shell extending in the front-to-back direction; a chamber formed in the shell and extending in the front-to-back direction; an air inlet formed at the rear end of the shell and connected to the chamber to allow airflow outside the shell to enter the chamber; M air outlets formed on the side wall of the shell and respectively connected to the chamber to allow airflow in the chamber to leave the chamber; a star-shaped spiral shaft arranged in the chamber and extending in the front-to-back direction, the star-shaped spiral shaft including M air guide surfaces arranged in sequence along its axial direction and corresponding to the M air outlets respectively, to guide the airflow in the chamber to the M air outlets respectively; wherein M is a positive integer greater than or equal to 3.

[0007] Preferably, the length of each of the M air outlet holes extends along the front-to-back direction.

[0008] Preferably, at least two groups of M air outlet holes are arranged around the circumference of the shell.

[0009] Preferably, the star-shaped spiral shaft includes a central axis extending in the front-to-back direction and N spiral blades distributed around the central axis; each of the N spiral blades extends axially along the central axis; the space between two adjacent spiral blades is suitable for forming a spiral airflow channel to guide the airflow in the chamber to flow forward along the spiral path; wherein N is a positive integer greater than or equal to 3.

[0010] Preferably, each of the M air guiding surfaces is located in the air flow channel and is disposed toward the corresponding air outlet hole, so as to reflect the air flow in the corresponding air flow channel and guide it to the corresponding air outlet hole.

[0011] Preferably, at least two groups of M air outlet holes are arranged around the circumference of the shell; each air guide surface is arranged around the circumference of the central axis to guide the airflow in the corresponding air flow channel to the corresponding air outlet holes of the corresponding group.

[0012] Preferably, the wind guiding surface includes an inclined surface arranged upstream of the corresponding air outlet and the corresponding air flow channel.

[0013] Preferably, along the direction from back to front, the projected areas of the first to the Mth air guiding surfaces among the M air guiding surfaces on the radial plane increase successively to allow the airflow in the chamber to flow forward.

[0014] Preferably, along the direction from back to front, the peripheral side of the M-th air guiding surface among the M air guiding surfaces is seamlessly connected to the inner wall of the shell to prevent the airflow in the chamber from continuing to flow forward.

[0015] Another aspect of the embodiments of the present invention is to provide a hair styling device, which includes an air supply system and an air guide structure provided by the embodiments of the present invention; the air supply system is connected to the air inlet to provide air flow to the chamber.

[0016] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0017] For example, by providing a star-shaped spiral shaft with an air guide surface, the airflow from the air inlet can be guided to each air outlet in sequence, thereby shortening the path and time of the airflow guiding the front air outlets (the 2nd to 4th air outlets), especially the path and time of the air outlets (the 2nd and 3rd air outlets) located in the middle position on the air outlet path, thereby reducing or eliminating the difference in air outlet temperature at each air outlet, making the distribution of air outlet temperature of each air outlet more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional cross-sectional view of the air guide structure in an embodiment of the present invention;

[0019] Figure 2 is a partial schematic diagram of the air guide structure in an embodiment of the present invention;

[0020] Figure 3 is a three-dimensional schematic diagram of a star-shaped spiral shaft in an embodiment of the present invention;

[0021] Figure 4 is a cross-sectional view of the air guide structure in an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of a hair styling device according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1 hair styling device, 10 air guide structure, 11 shell, 12 chamber, 13 air inlet, 141 first air outlet, 142 second air outlet, 143 third air outlet, 144 fourth air outlet, 15 star-shaped spiral axis, 151 central axis, 1521 first air guide surface, 1522 second air guide surface, 1523 third air guide surface, 1524 fourth air guide surface, 161 first spiral blade, 162 second spiral blade, 163 third spiral blade, 164 fourth spiral blade, 165 fifth spiral blade, 166 sixth spiral blade, 171 first air flow channel, 172 second air flow channel, 173 third air flow channel, 174 fourth air flow channel, 175 fifth air flow channel, 176 sixth air flow channel, 20 air supply system, 21 handle, 22 aerodynamic part. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described below are only used to explain the present invention, rather than to limit the present invention. In addition, the description of the same or similar parts in different embodiments and the description of the parts, features, effects, etc. belonging to the prior art may be omitted.

[0026] In addition, for the convenience of description, only the parts related to the present invention are shown in the drawings instead of all structures. In addition, the same or similar reference numerals may be used in the drawings to refer to the same or similar components in different embodiments.

[0027] An embodiment of the present invention provides a wind guide structure.

[0028] Figure 1 is a three-dimensional cross-sectional view of the air guide structure in an embodiment of the present invention; Figure 2is a partial schematic diagram of a star-shaped spiral shaft in an embodiment of the present invention; Figure 3 is a front view of the air guide structure in an embodiment of the present invention; Figure 4 It is a cross-sectional view of the air guide structure along line AA in an embodiment of the present invention.

[0029] Reference Figures 1 to 4 The air guide structure 10 includes a housing 11, a chamber 12, an air inlet 13, M air outlets 141, 142, 143, 144, and a star-shaped spiral shaft 15. Wherein, M is a positive integer greater than or equal to 3.

[0030] In some embodiments, the housing 11 may be in the shape of a hollow cylinder, and its axis extends in the front-to-back direction.

[0031] In a specific implementation, the hollow space inside the shell 11 is suitable for forming a chamber 12, and the circumference of the chamber 12 is defined by the side wall of the shell 11. Corresponding to the cylindrical shell 11, the chamber 12 can also be cylindrical, and its axis also extends in the front-to-back direction. The air inlet 13 is formed at the rear end of the shell 11 and communicates with the chamber 12 to allow the airflow outside the shell 11 to enter the chamber 12. M air outlet holes 141, 142, 143, 144 are formed on the side wall of the shell 11, and are respectively communicated with the chamber 12 to allow the airflow in the chamber 12 to leave the chamber 12. The star-shaped spiral shaft 15 is arranged in the chamber 12, and includes M air guide surfaces 1521, 1522, 1523, 1524 arranged in sequence along its axial direction and corresponding to the M air outlet holes 141, 142, 143, 144 respectively, so as to guide the airflow in the chamber 12 to the M air outlet holes 141, 142, 143, 144 respectively.

[0032] In some embodiments, the M air outlets 141, 142, 143, 144 may be arranged in sequence along the front-to-back direction. Also, along the back-to-front direction, the M air outlets 141, 142, 143, 144 may be the first air outlet 141, the second air outlet 142, ..., the (M-1)th air outlet 143 and the Mth air outlet 144, respectively.

[0033] Correspondingly, the M wind guide surfaces 1521, 1522, 1523, 1524 are also sequentially arranged along the front-to-back direction. Furthermore, along the direction from back to front, the M wind guide surfaces 1521, 1522, 1523, 1524 can be the first wind guide surface 1521, the second wind guide surface 1522, ..., the (M-1)th wind guide surface 1523 and the Mth wind guide surface 1524, respectively.

[0034] In some embodiments, each of the M air outlet holes 141 , 142 , 143 , 144 may be an elongated hole whose length extends in the front-to-back direction.

[0035] In some embodiments, at least two groups of M air outlet holes 141 , 142 , 143 , 144 are arranged around the side wall of the housing 11 . In addition, each group of air outlet holes may be evenly distributed around the side wall of the housing 11 .

[0036] In some embodiments, the air guide structure 10 may include 6 groups of air outlet holes, and the 6 groups of air outlet holes are evenly distributed around the side wall of the housing 11 .

[0037] In some embodiments, M may be 4. In this case, each group of air outlet holes includes four air outlet holes 141, 142, 143, 144. Accordingly, the star-shaped spiral shaft 15 includes four air guide surfaces 1521, 1522, 1523, 1524.

[0038] In a specific implementation, the star-shaped spiral shaft 15 may include a central shaft 151 extending in the front-to-back direction and N spiral blades 161, 162, 163, 164, 165, 166 distributed around the circumference of the central shaft 151. Each of the N spiral blades 161, 162, 163, 164, 165, 166 extends along the axial direction of the central shaft 151, that is, in the front-to-back direction. In addition, the space between two adjacent spiral blades is suitable for forming spiral airflow channels 171, 172, 173, 174, 175, 176, respectively, to guide the airflow in the chamber 12 to flow forward along the spiral path; a total of N airflow channels 171, 172, 173, 174, 175, 176 are formed; wherein N is a positive integer greater than or equal to 3.

[0039] It can be understood that, since the boundary of the airflow channel is defined by spiral blades extending in the front-to-back direction and adjacent to each other, the shape of the airflow channel is a spiral extending in the front-to-back direction.

[0040] In a specific implementation, the airflow outside the housing 11 can enter the chamber 12 through the air inlet 13 in a direction from back to front, and continue to flow forward along the spiral airflow channel defined by the spiral blades in the chamber 12 .

[0041] In an embodiment of the present invention, each of the M air guide surfaces 1521, 1522, 1523, 1524 is located in the air flow channels 171, 172, 173, 174, 175, 176, and is arranged toward the corresponding air outlet holes 141, 142, 143, 144 to reflect the air flow in the corresponding air flow channels 171, 172, 173, 174, 175, 176 and guide it to the corresponding air outlet holes 141, 142, 143, 144.

[0042] As mentioned above, the M air outlets 141, 142, 143, 144 are arranged in sequence along the front-to-back direction. Therefore, corresponding to the position of each air outlet among the M air outlets 141, 142, 143, 144 (the position along the axial direction), the star-shaped spiral axis 15 can be divided into M sections along the direction from back to front, wherein the first section corresponds to the first air outlet 141, the second section corresponds to the second air outlet 142, ..., the (M-1)th section corresponds to the (M-1)th air outlet 143, and the Mth section corresponds to the Mth air outlet 144.

[0043] Furthermore, the N air flow channels 171, 172, 173, 174, 175, 176 located at the first section of the star spiral shaft 15 face the side wall circle where the first air outlet 141 is located, the N air flow channels 171, 172, 173, 174, 175, 176 located at the second section of the star spiral shaft 15 face the side wall circle where the second air outlet 142 is located, ..., the N air flow channels 171, 172, 173, 174, 175, 176 located at the (M-1)th section of the star spiral shaft 15 face the side wall circle where the (M-1)th air outlet 143 is located, and the N air flow channels 171, 172, 173, 174, 175, 176 located at the Mth section of the star spiral shaft 15 face the side wall circle where the Mth air outlet 144 is located.

[0044] Thus, for the first air outlet 141 in the group of air outlets, at least one airflow channel 171, 172, 173, 174, 175, 176 among the N airflow channels 171, 172, 173, 174, 175, 176 may correspond thereto. Specifically, at least one airflow channel 171, 172, 173, 174, 175, 176 among the N airflow channels 171, 172, 173, 174, 175, 176 may be open facing the first air outlet 141.

[0045] Similarly, at least one of the N air flow channels 171 , 172 , 173 , 174 , 175 , 176 may also be open to the second to Mth air outlets 142 , 143 , 144 .

[0046] In the embodiment of the present invention, the wind guiding surfaces 1521 , 1522 , 1523 , 1524 are arranged in the air flow channels 171 , 172 , 173 , 174 , 175 , 176 to reflect the air flow in the corresponding air flow channels 171 , 172 , 173 , 174 , 175 , 176 and guide them to the corresponding air outlet holes 141 , 142 , 143 , 144 .

[0047] For example, for the first air outlet 141 in a group of air outlets, the first air guide surface 1521 can be disposed in the air flow channels 171, 172, 173, 174, 175, 176 corresponding to the first air outlet 141. In addition, the first air guide surface 1521 is disposed toward the first air outlet 141 to reflect the air flow in the corresponding air flow channels 171, 172, 173, 174, 175, 176 and guide it to the corresponding first air outlet 141.

[0048] Correspondingly, the 2nd to Mth wind guide surfaces 1522, 1523, 1524 can be set in the same way.

[0049] In some embodiments, the air guide surfaces 1521, 1522, 1523, 1524 may include inclined surfaces disposed upstream (i.e., rearward) of the corresponding air outlet holes 141, 142, 143, 144 and the corresponding air flow channels 171, 172, 173, 174, 175, 176. In this way, the airflow can be better reflected and smoothly guided to the corresponding air outlet holes 141, 142, 143, 144.

[0050] As mentioned above, in some embodiments, the M air outlet holes 141, 142, 143, 144 may be arranged in at least two groups around the circumference of the housing 11. Accordingly, each of the M air guide surfaces 1521, 1522, 1523, 1524 may also be arranged corresponding to each of the at least two groups of air outlet holes 141, 142, 143, 144.

[0051] For example, six groups of air outlet holes are arranged around the circumference of the housing 11. Accordingly, six first air outlet holes 141 are arranged around the circumference of the housing 11. Each first air outlet hole 141 has a corresponding first air guide surface 1521 corresponding thereto.

[0052] In some embodiments, each wind guide surface 1521, 1522, 1523, 1524 can be arranged in a circle around the central axis 151 to reflect and guide the airflow in the corresponding air flow channels 171, 172, 173, 174, 175, 176 to the corresponding air outlet holes 141, 142, 143, 144 of the corresponding group.

[0053] For example, six first air outlet holes 141 are provided around the circumference of the housing 11, and six air flow channels 171, 172, 173, 174, 175, 176 are provided accordingly. In this case, the six air flow channels 171, 172, 173, 174, 175, 176 can divide the first air guide surface 1521 provided along the circumference of the central axis 151 into the first part, the second part, ..., the fifth part, and the sixth part along the circumferential direction. Among them, the first part of the first air guide surface 1521 can reflect the airflow in the first air flow channel 171 and guide it to the first air outlet 141 of the first group, the second part of the first air guide surface 1521 can reflect the airflow in the second air flow channel 172 and guide it to the first air outlet 141 of the second group,..., the fifth part of the first air guide surface 1521 can reflect the airflow in the fifth air flow channel 175 and guide it to the first air outlet 141 of the fifth group, and the sixth part of the first air guide surface 1521 can reflect the airflow in the sixth air flow channel 176 and guide it to the first air outlet 141 of the sixth group.

[0054] It can be understood that when the wind guide surfaces 1521, 1522, 1523, and 1524 are arranged in a circle around the central axis 151, they can have a shape similar to a cone, with the top of the cone facing backward and the bottom of the cone facing forward.

[0055] In a specific implementation, along the direction from back to front, there are gaps between the 1st to (M-1)th air guiding surfaces 1521, 1522, 1523 and the inner wall of the shell 11 to allow the airflow in the chamber 12 to continue to flow forward.

[0056] In some embodiments, along the direction from back to front, the projected areas of the 1st to the Mth air guide surfaces 1521, 1522, 1523, 1524 on the radial plane increase successively to allow the airflow in the chamber 12 to flow forward smoothly.

[0057] In a specific implementation, along the direction from back to front, the peripheral side of the Mth wind guiding surface 1524 is seamlessly connected to the inner wall of the shell 11 to prevent the airflow in the chamber 12 from continuing to flow forward.

[0058] In an embodiment of the present invention, the above-mentioned technical scheme is adopted. By sequentially arranging air guide surfaces 1521, 1522, 1523, 1524 in spiral air flow channels 171, 172, 173, 174, 175, 176, the airflow from the air inlet 13 can be sequentially guided to each air outlet along the air inlet direction (from back to front), thereby shortening the path and time of the airflow guiding the front air outlets (the 2nd to the 4th air outlets), especially the path and time of the airflow guiding the middle air outlets (the 2nd and 3rd air outlets), thereby reducing or eliminating the difference in air outlet temperature at each air outlet.

[0059] Figure 5 Schematic diagram of a hair styling device according to an embodiment of the present invention.

[0060] Reference Figure 5 , an embodiment of the present invention further provides a hair styling device 1.

[0061] The hair styling device 1 comprises an air supply system 20 and an air guide structure 10 provided in an embodiment of the present invention, wherein the air supply system 20 is connected to the air inlet 13 of the air guide structure 10 to provide air flow into the chamber 12 thereof.

[0062] In some embodiments, the air supply system 20 may include a handle 21 and an aerodynamic part 22 connected to each other. The handle 21 is a hollow structure, one end of which is connected to the air inlet 13 of the air guide structure 10, and the other end is connected to the aerodynamic part 22. The aerodynamic part 22 is suitable for providing a heated airflow to the air guide structure 10 through the handle 21.

[0063] In a specific implementation, the handle 21 and the pneumatic part 22 can be implemented by any known prior art means in the prior art.

[0064] In some embodiments, the hair styling device 1 further includes bristles disposed on the outside of the housing 11 of the air guide structure 10 .

[0065] In a specific implementation, the bristles may be distributed along the M air outlet holes 141 , 142 , 143 , and 144 .

[0066] In some embodiments, the M air outlet holes 141 , 142 , 143 , 144 and the bristles can be arranged in at least two groups. Moreover, the groups of air outlet holes and the groups of bristles are arranged at intervals from each other along the circumference of the housing 11 .

[0067] Although specific embodiments of the present invention have been described above, these embodiments are not intended to limit the scope of the present invention, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present invention disclosure are intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claim, based on actual needs and where technically feasible, and the technical features of the corresponding claims may be combined in any appropriate manner rather than just by the specific combinations listed in the claims.

[0068] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A wind guide structure (10), characterized in that: include: A housing (11) extending in a front-rear direction; a chamber (12) formed in the housing (11) and extending in the front-rear direction; an air inlet (13) formed at the rear end of the shell (11) and communicating with the chamber (12) so as to allow airflow outside the shell (11) to enter the chamber (12); M air outlet holes (141, 142, 143, 144) formed on the side wall of the housing (11) and respectively connected to the chamber (12) to allow airflow in the chamber (12) to leave the chamber (12); A star-shaped spiral shaft (15) is arranged in the chamber (12) and extends in the front-to-back direction, the star-shaped spiral shaft (15) comprising a central axis (151) extending in the front-to-back direction and N spiral blades (161, 162, 163, 164, 165, 166) distributed around the central axis (151); each of the N spiral blades (161, 162, 163, 164, 165, 166) extends in the axial direction of the central axis (151); and the space between two adjacent spiral blades is suitable for forming a spiral airflow channel (171, 172, 173, 174, 175, 176), so as to guide the airflow in the chamber (12) to flow forward along a spiral path; the star-shaped spiral shaft (15) further comprises M air guide surfaces (1521, 1522, 1523, 1524) arranged in sequence along its axial direction and corresponding to the M air outlet holes (141, 142, 143, 144), respectively, and each air guide surface (1521, 1522, 1523, 1524) is arranged around the circumference of the central axis (151) for a circle so as to respectively reflect and guide the airflow in the corresponding air flow channels (171, 172, 173, 174, 175, 176) to the corresponding air outlet holes (141, 142, 143, 144); Wherein, M is a positive integer greater than or equal to 3, and N is a positive integer greater than or equal to 3.

2. The wind guide structure (10) according to claim 1, characterized in that: The length of each of the M air outlet holes (141, 142, 143, 144) extends along the front-to-back direction.

3. The wind guide structure (10) according to claim 1, characterized in that: At least two groups of the M air outlet holes (141, 142, 143, 144) are arranged around the circumference of the shell (11).

4. The wind guide structure (10) according to claim 1, characterized in that: Each of the M air guide surfaces (1521, 1522, 1523, 1524) is located in the air flow channel (171, 172, 173, 174, 175, 176) and is arranged toward the corresponding air outlet (141, 142, 143, 144) to reflect the air flow in the corresponding air flow channel (171, 172, 173, 174, 175, 176) and guide it to the corresponding air outlet (141, 142, 143, 144).

5. The wind guide structure (10) according to claim 3 or 4, characterized in that: The wind guiding surfaces (1521, 1522, 1523, 1524) include inclined surfaces arranged upstream of the corresponding air outlet holes (141, 142, 143, 144) and the corresponding air flow channels (171, 172, 173, 174, 175, 176).

6. The wind guide structure (10) according to claim 5, characterized in that: Along the direction from back to front, the projection areas of the first to Mth air guide surfaces (1521, 1522, 1523, 1524) among the M air guide surfaces (1521, 1522, 1523, 1524) on the radial plane increase successively, so as to allow the airflow in the chamber (12) to flow forward.

7. The wind guide structure (10) according to claim 5, characterized in that: In the direction from back to front, the peripheral side of the Mth wind guide surface (1524) among the M wind guide surfaces (1521, 1522, 1523, 1524) is seamlessly connected to the inner wall of the shell (11) to prevent the airflow in the chamber (12) from continuing to flow forward.

8. A hair styling device (1), characterized in that It comprises an air supply system (20) and an air guide structure (10) according to any one of claims 1 to 7; the air supply system (20) is connected to the air inlet (13) to provide the air flow to the chamber (12).

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