Air guide mechanism and hair curler having same

Abstract

The present application relates to an air guide mechanism and a hair curler having same. The air guide mechanism comprises a support assembly (10) and air guide assemblies (20), wherein the support assembly (10) is provided with an air inlet (11) and an air duct (12), the air duct (12) being circumferentially divided into two or more air output portions (13), and each air output portion (13) being provided with a plurality of air ports (14) arranged at intervals in a lengthwise direction (X); and the air guide assemblies (20) cover the corresponding air output portions (13), each air guide assembly (20) is provided with a plurality of air cavities (23) that correspond to the air ports (14) on a one-to-one basis and are in communication with same, a first side portion (21) and a second side portion (22) of each air guide assembly (20) are both mounted on an outer side of the support assembly (10) in a sealed manner, and the second side portion (22) is provided with air outlets (24) that correspond to a plurality of the air cavities (23) on a one-to-one basis and are in communication with same. The plurality of air ports (14) increase the dispersibility of an airflow, and the air cavities (23) can reduce the occurrence of turbulence, thereby improving the stability and uniformity of the airflow.

Description

Air guide mechanism and hair curling iron having the same Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to an air guide mechanism and a curling iron having the same. Background Art

[0002] The working principle of the curling iron is to allow the air flow generated by the air supply mechanism inside the handle to act on the hair through the air duct structure of the air guide mechanism, wrapping the hair around the surface of the air guide mechanism to achieve a curling effect. Technical issues

[0003] One of the purposes of the embodiments of the present application is to provide an air guide mechanism and a curling iron having the same, aiming to solve the problem of unstable and uneven airflow generated by the air duct structure of the existing air guide mechanism. Technical Solutions

[0004] To solve the above technical problems, the technical solutions adopted in the embodiments of the present application are:

[0005] In a first aspect, an air guide mechanism is provided, the air guide mechanism comprising:

[0006] A support assembly, the support assembly having an air inlet and an air duct connected to the air inlet, the air duct being elongated and divided into two or more air outlets along the length of the air duct, each of the air outlets having a plurality of air ports spaced apart along the length of the air duct;

[0007] An air guide assembly, the number of the air guide assemblies is the same as the number of the air outlet portions and corresponds one to one, the air guide assemblies cover the corresponding air outlet portions, the air guide assemblies have a plurality of air cavities that correspond one to one to and are connected with the air ports, each of the air guide assemblies has a first side portion and a second side portion in sequence along the circumference of the air duct, the first side portion and the second side portion are both sealed and mounted on the outside of the support assembly, and the second side portion has an air outlet that corresponds one to one to and is connected with the plurality of air cavities.

[0008] In one embodiment, the air outlet portion has a through hole that passes through the side wall of the air duct, and a plurality of first ribs are provided in the air outlet portion. The plurality of first ribs are arranged at intervals along the length direction of the air duct to separate the air outlet portion into a plurality of air outlets.

[0009] In one embodiment, the first rib is arranged obliquely along the circumference of the air duct, and the angle between the first rib and the longitudinal direction of the air duct is 45° to 75°.

[0010] In one embodiment, all the first ribs are sequentially connected to form two or more spiral lines, the number of the spiral lines is the same as the number of the air outlet parts, and the two or more spiral lines are interlaced and wound.

[0011] In one embodiment, an extension line of each first rib coincides with a first rib of an adjacent air outlet portion.

[0012] In one embodiment, the plurality of first ribs of each air outlet portion are distributed at equal intervals along the length direction of the air duct.

[0013] In one embodiment, the surfaces of the first rib in the longitudinal direction of the air duct are respectively a first plane and a second plane, and the first plane and the second plane are parallel.

[0014] In one embodiment, surfaces of the first rib on two opposite sides of the air duct in the radial direction are both arc surfaces.

[0015] In one embodiment, the angle between the first rib and the longitudinal direction of the air duct is 45°, 50°, 55°, 60°, 65°, 70° or 75°.

[0016] In one embodiment, the air outlet has a first air outlet wall and a second air outlet wall in the radial direction of the air duct, and the ratio of the distance between the first air outlet wall and the second air outlet wall to the outer diameter of the air guide assembly is 0.008~0.01.

[0017] In one embodiment, a first chamfer is provided on the outer side surface of the air guide assembly near the second side portion, and the radius of the first chamfer is 0.25 mm to 0.5 mm.

[0018] In one embodiment, a second chamfer is provided on the outer side surface of the air guide assembly near the first side portion, and the radius of the second chamfer is 1 mm to 2 mm.

[0019] In one embodiment, a first hook is provided on an inner side of the first side portion and / or an inner side of the second side portion, and the first hook is engaged with the support assembly.

[0020] In one embodiment, a first clamping block is provided on the inner side of the first side portion and / or the inner side of the second side portion, and a first clamping slot is provided on the outer surface of the support assembly, and the first clamping block is clamped in the first clamping slot.

[0021] In one embodiment, one of the first side portion and the second side portion is provided with a second clamping block, the other of the first side portion and the second side portion is provided with a second clamping slot, and the second clamping block is clamped in the second clamping slot.

[0022] In one embodiment, the first side portion has a first limiting wall, the second side portion has a second limiting wall, the first limiting wall and the second limiting wall are in contact with each other, and both the first limiting wall and the second limiting wall extend along the length direction of the air duct.

[0023] In one embodiment, the wind guide assembly includes a separately connected wind shield and a wind guide frame, the wind shield has the air outlet, the wind shield is located on a side of the wind guide frame away from the air duct, and the wind shield is installed on the outside of the support assembly.

[0024] In one embodiment, the air guide frame has a plurality of second ribs arranged at intervals along the length direction of the air duct, and two adjacent second ribs and the inner surface of the wind shield enclose the air cavity.

[0025] In one embodiment, the inner surface of the second rib is in contact with the outer surface of the support assembly.

[0026] In one embodiment, the side wall of the second rib corresponds to the side wall of the air port.

[0027] In one embodiment, the inner surface of the windshield is provided with third ribs corresponding one-to-one to the plurality of second ribs, and the outer surfaces of the second ribs are in contact with the inner surfaces of the third ribs.

[0028] In one embodiment, the air guide frame is provided with limiting grooves on the first side portion corresponding to the plurality of third ribs, and the third ribs are limitedly inserted into the limiting grooves.

[0029] In one embodiment, one of the wind shield and the wind guide frame is provided with a third clamping block on the first side portion, and one of the wind shield and the wind guide frame is provided with a clamping hole on the first side portion, and the third clamping block is clamped in the clamping hole.

[0030] In one embodiment, the windshield is integrally formed.

[0031] In one embodiment, the air guide frame is integrally formed.

[0032] In one embodiment, the material of the wind shield is the same as that of the wind guide frame.

[0033] In one embodiment, the support assembly includes a mounting base and a wind tube, the mounting base has an air inlet, one end of the wind tube is connected to the mounting base, and the wind tube has the air duct.

[0034] In one embodiment, the outer shape of the wind tube is truncated cone-shaped, and the angle between the generatrix of the wind tube and the axis of the wind tube is 0-15°.

[0035] In a second aspect, a curling iron is provided, comprising the air guide mechanism described in any one of the above. Beneficial effects

[0036] The beneficial effect of the air-guiding mechanism provided in the embodiment of the present application is that the air flow flows into the air duct through the air inlet of the supporting assembly, and the elongated air duct has more than two air outlet portions distributed along the circumferential direction, and each air outlet portion has multiple air outlets. The multiple air outlets increase the dispersion of the air flow and guide the isobaric air flow in the air duct to flow into the air cavity corresponding to the air outlet. The air cavity can reduce the occurrence of turbulence and stably guide the air flow to be emitted from the air outlet on the second side, ensuring that the vector velocity of the outgoing air flow from each evenly distributed air outlet is stable and the deviation is reduced, thereby solving the technical problem of unstable and uneven airflow caused by the air duct structure of the existing air-guiding mechanism, thereby improving the stability and uniformity of the air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] FIG1 is a schematic structural diagram of an air guide mechanism provided in an embodiment of the present application;

[0039] FIG2 is another perspective view of the air guide mechanism in FIG1 ;

[0040] FIG3 is a cross-sectional view of the air guide mechanism along line AA in FIG2 ;

[0041] FIG4 is a cross-sectional view of the air guide mechanism along line BB in FIG3 ;

[0042] FIG5 is a partial enlarged view of FIG4;

[0043] FIG6 is a schematic structural diagram of a support assembly of an air guide mechanism provided in an embodiment;

[0044] FIG7 is another perspective view of the support assembly in FIG6;

[0045] FIG8 is a schematic structural diagram of an air guide assembly of an air guide mechanism provided in an embodiment;

[0046] FIG9 is another perspective view of the air guide assembly in FIG8;

[0047] FIG10 is a cross-sectional view of the air guide assembly along line CC in FIG9 ;

[0048] FIG11 is a schematic structural diagram of the windshield of the wind guide assembly in FIG8 ;

[0049] FIG12 is another perspective view of the windshield in FIG11;

[0050] FIG13 is a schematic structural diagram of the air guide frame of the air guide assembly in FIG8 ;

[0051] FIG14 is a schematic structural diagram of the air guide frame in FIG13 . Modes for Carrying Out the Invention

[0052] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0053] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0054] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0055] Example 1

[0056] In conjunction with FIG1 and FIG2 , the present application provides an air guide mechanism.

[0057] Please refer to Figures 3 to 5 together. The air guide mechanism includes a support assembly 10 and an air guide assembly 20. The support assembly 10 has an air inlet 11 and an air duct 12 connected to the air inlet 11. The air duct 12 is elongated and is divided into two or more air outlets 13 along the longitudinal direction X of the air duct 12. Each air outlet 13 has a plurality of air outlets 14 arranged at intervals along the longitudinal direction X of the air duct 12.

[0058] The number of air guide assemblies 20 is the same as the number of air outlets 13 and corresponds one-to-one. Each air guide assembly 20 covers the corresponding air outlet 13 and has multiple air cavities 23 that correspond one-to-one to and communicate with the air ports 14. Each air guide assembly 20 has a first side portion 21 and a second side portion 22 along the circumference of the air duct 12. That is, the first side portions 21 and the second side portions 22 are alternately distributed along the circumference of the air duct 12, with the second side portion 22 of the preceding air guide assembly 20 adjacent to the first side portion 21 of the succeeding air guide assembly 20. The first side portion 21 and the second side portion 22 are both sealed and mounted on the outside of the support assembly 10. The second side portion 22 has air outlets 24 that correspond one-to-one to and communicate with the multiple air cavities 23.

[0059] In this embodiment, air flows through the air inlet 11 of the support assembly 10 into the air duct 12. The elongated air duct 12 has two or more circumferentially distributed air outlets 13, each of which has multiple air ports 14. The multiple air ports 14 increase the dispersion of the airflow and guide the isobaric airflow within the air duct 12 into the air cavities 23 corresponding to the air ports 14. The air cavities 23 can reduce the occurrence of turbulence. Thus, before exiting, the airflow is evenly dispersed into the various air cavities 23 within the air guide mechanism. Each air cavity 23 corresponds to an air outlet 24. The air cavities 23 guide the stable airflow out of the air outlets 24 on the second side portion 22, ensuring that the vector velocity of the airflow exiting the evenly distributed air outlets 24 is stable, reducing deviation, and thus improving the stability and uniformity of the airflow.

[0060] Referring to Figure 4 , airflow emerges from the second side portion 22 of the air guide assembly 20, flowing along the outer surface of the first side portion 21 of the air guide assembly 20. High wind speed on the outer surface of the air guide assembly 20 creates a low-pressure area, allowing objects being blown (such as hair) to adhere to the outer surface of the air guide assembly 20 when the air guide mechanism is in use. P in Figure 4 indicates the direction of external air pressure, pressing the objects being blown against the outer surface of the air guide assembly 20. This facilitates shaping of the objects being blown, while also allowing the objects to be attracted to the outer surface of the air guide assembly 20, allowing for stable, uniform, and efficient blowing close to the air outlet, thereby improving both blowing efficiency and effectiveness.

[0061] When the air guide assembly 20 is used in a curling iron, the multiple air cavities 23 uniformly accommodate the airflow in advance, ensuring that the airflow in each air cavity 23 is evenly mixed and uniform in temperature, facilitating rapid curling without damaging the hair. Compared to directly using spacers to split the airflow before exiting, forming multiple small airflows, which can easily cause turbulence and uneven flow rates, the air cavities 23 of this embodiment pre-accommodate small airflows, pre-dispersing the airflow before exiting through the air outlet 24. This ensures that the airflow exits at each outlet 24 at a consistent speed, preventing hair from being blown away or becoming tangled. It is understood that the air guide mechanism can also be applied to electrical appliances such as hair dryers and vacuum cleaners, and this is not intended to be a limitation here.

[0062] Among them, the temperature of the air flow entering the air inlet 11 can be cold air or hot air, that is, there is no limit on the temperature of the air flow, which expands the application scenario of the air guide component 20. The number of air outlets 13 can be two, three or more than three, which is not limited here. Generally, the number of air outlets 13 is four to ten. Adjacent air outlets 13 are spaced apart in the circumferential direction of the air duct 12, and the size of the space is not limited. More than two air outlets 13 can occupy the side wall of the air duct 12 along the circumferential direction of the air duct 12, or a closed part that does not exhaust air can be provided between two adjacent air outlets 13. The number of air ports 14 of each air outlet 13 is more than three, for example, 5 to 50, which is not specifically limited here. The air outlet 13 extends along the longitudinal direction X of the air duct 12, that is, the air outlet 13 is also slender. The air guide component 20 extends along the longitudinal direction X of the air duct 12, that is, the air guide component 20 is also slender.

[0063] 6 and 7 , in one possible embodiment, multiple air outlets 13 are sequentially adjacent end to end along the circumference of the air duct 12 , and correspondingly, multiple air guide assemblies 20 are sequentially adjacent end to end along the circumference of the air duct 12 . This avoids waste on the outer wall of the support assembly 10 , increases the number of air outlets 13 and the number of air outlets 24 , and thereby enables the air guide mechanism to uniformly discharge air 360°, with airflow surrounding the outer surface of the air guide mechanism without interruption, facilitating the shaping and control of the surface airflow and the winding of adsorbed objects, while also being convenient for the user. Specifically, in conjunction with FIG. 2 , the number of air outlets 13 is six, and accordingly, the number of air guide assemblies 20 is six. On the one hand, the six air guide assemblies 20 form a hexagon, which can optimize air flow and ensure that airflow can flow evenly along the circumference of the air guide mechanism, helping to reduce turbulence and hot spots, providing a more uniform and stable air volume distribution, and facilitating a more consistent curling effect. On the other hand, each air guide assembly 20 corresponds to six equal divisions of the outer wall of the support assembly 10 , ensuring that the air guide assembly 20 has a certain width, facilitating processing and manufacturing.

[0064] In some embodiments, in conjunction with Figures 5 to 7, the air outlet portion 13 has a through hole that passes through the side wall of the air duct 12. A plurality of first ribs 122 are provided in the air outlet portion 13. The plurality of first ribs 122 are spaced apart along the longitudinal direction X of the air duct 12 to divide the air outlet portion 13 into a plurality of air ports 14. The through hole structure can greatly reduce the weight of the support assembly 10, while also helping to reduce wind resistance, increase the exit speed, and allow the airflow to flow in an orderly manner along the first ribs 122. The first ribs 122 take up little space and can divide the air ports 14 into large sizes, which facilitates the uniform and dispersed flow of air through the air ports 14 into the air cavity 23. The first ribs 122 also enhance the strength of the support assembly 10 by connecting the opposite side walls of the through hole.

[0065] The through holes extend along the length direction X of the air duct 12 to expand the air outlet area as much as possible, thereby increasing the air outlet area and forming more air ports 14 and air cavities 23, thereby forming a more fine and uniform air outlet.

[0066] Optionally, the thickness of the first rib 122 is 1 mm to 3 mm.

[0067] In one embodiment, in combination with Figures 3 and 7, after the airflow in the extension direction of the first rib 122 enters the air duct 12 through the air inlet 11, it flows along the length direction X of the air duct 12. The first rib 122 is arranged at an angle along the circumference of the air duct 12, guiding the airflow to flow obliquely toward the multiple air outlets 14 arranged circumferentially, forming a spiral airflow in the air duct 12, and then being able to emit spiral wind to the outside through the air cavity 23 and the air outlet 24, which is more conducive to adsorbing and winding the blown object.

[0068] Specifically, in conjunction with Figure 3, after testing, when the angle a is greater than 75°, the angle of the airflow deflection is insufficient. When leaving the air outlet 24 located on the second side portion 22, it is easy to deviate outward, causing the hair to be blown away when used for curling hair. When the angle a is less than 45°, the angle of the airflow deflection is too large. When leaving the air outlet 24 located on the second side portion 22, it is easy to deviate inward and blow toward the blown object in the low-pressure area, reducing the winding effect of the blown object. The angle a between the first rib 122 and the longitudinal direction X of the air duct 12 is 45° to 75°, which can be emitted at an angle roughly tangent to the outer surface of the air guide component 20. The airflow is roughly spiral, making it easier for the blown object to be adsorbed and wound around the outer surface of the air guide component 20.

[0069] Optionally, the angle between the first rib 122 and the length direction X of the air duct 12 is 45°, 50°, 55°, 60°, 65°, 70° or 75°.

[0070] In one embodiment, in combination with Figure 7, the extension line of each first rib 122 coincides with a first rib 122 of the adjacent air outlet portion 13, so that the airflow flows along the first ribs 122 located at different air outlet portions 13, and the wind direction remains unchanged when passing through the boundary position of different air outlet portions 13. The trajectory of the airflow is regular, and the flow pressure loss is small, which is conducive to achieving more uniform, stable and efficient heat transfer.

[0071] The first ribs 122 and adjacent first ribs 122 of adjacent air outlet portions 13 are sequentially connected to form a spiral line 123 (see FIG. 7 ) or other smooth curves, which are not limited here.

[0072] In one embodiment, as shown in Figure 7 , all first ribs 122 are sequentially connected to form two or more spirals 123. Specifically, a first rib 122 is sequentially connected to adjacent first ribs 122 on adjacent air outlets 13 to form spirals 123. The number of spirals 123 is the same as the number of air outlets 13, and the two or more spirals 123 are intertwined at intervals. This allows the airflow within the air duct 12 to flow strictly along the spiral trajectory under the guidance of the first ribs 122, further enhancing the spiral airflow effect and facilitating the spiral shaping of the blown objects.

[0073] As shown in FIG. 7 , the six air outlets 13 may form six spiral lines 123 . In other words, the six parallel wound spiral lines 123 are divided into six air outlets 13 along the length direction X. Each spiral line 123 is divided into a plurality of first ribs 122 .

[0074] In one embodiment, in conjunction with Figure 7, the multiple first ribs 122 of each air outlet portion 13 are evenly spaced along the length direction X of the air duct 12, so that the sizes of each air outlet 14 are the same, which enhances the uniformity and stability of the air flow, and is conducive to achieving consistent emission speed and outlet air volume of each air outlet 24 and uniform temperature.

[0075] In one embodiment, in combination with Figures 6 and 7, the surfaces of the first rib 122 in the length direction X of the air duct 12 are respectively a first plane 124 and a second plane 125, and the first plane 124 and the second plane 125 are parallel. On the one hand, the airflow flows along the first plane 124 and the second plane 125, which helps to maintain a constant airflow speed and direction, and will not deviate in the normal direction of the first plane and the second plane 125, thereby reducing airflow turbulence and turbulence, making the pressure loss of the airflow in the air duct 12 smaller, and facilitating the control of the airflow trajectory.

[0076] In one embodiment, in combination with Figures 3 and 6, the surfaces of the first rib 122 on both sides opposite to each other in the radial direction of the air duct 12 are both arc surfaces, that is, the surface of the first rib 122 on the side close to the air duct 12 and the surface of the side away from the air duct 12 are both smooth arcs, which reduces the resistance and turbulence during the flow of airflow, improves the stability and flow efficiency of the airflow, and facilitates the airflow to flow along the arc surface and stably change direction to enter the air cavity 23.

[0077] In some embodiments, referring to FIG. 7 , a partition bar 121 is provided between the air outlet portions 13 of the through-hole structure. The partition bar 121 occupies a small size while ensuring rigidity and supporting the air guide assembly 20 , thereby facilitating the formation of a large-sized air outlet 14 .

[0078] In some embodiments, referring to Figures 6 and 7 , the support assembly 10 includes a mounting base 110 and a wind tube 120. The mounting base 110 has an air inlet 11. One end of the wind tube 120 is connected to the mounting base 110, and the wind tube 120 has an air duct 12. The mounting base 110 is used to mount the air guide mechanism to the wind generating mechanism and receives airflow through the air inlet 11. The mounting base 110 has a high structural strength and is used to achieve connection with the air guide mechanism and support the air guide assembly 20. The wind tube 120 is designed to be slender, which facilitates the formation of the slender air duct 12. The thin and lightweight design of the wind tube 120 helps reduce wind resistance and improve the stability and flow efficiency of the airflow.

[0079] Optionally, the thickness of the air cylinder 120 is 1 mm to 10 mm.

[0080] In one embodiment, referring to FIG3 , the air duct 120 has a truncated cone shape, the cone having a busbar and an axis. The longitudinal direction X of the air duct 12 is aligned with the axis. The angle between the busbar of the air duct 120 and the axis of the air duct 120 is 0-15°. The large diameter end of the air duct 120 is connected to the mounting base 110, and the small diameter end of the air duct 120 is away from the mounting base 110. The airflow flows from the large diameter end to the small diameter end, which is beneficial for increasing the wind speed at the small diameter end by shrinking the inner diameter. When the angle between the busbar and the axis is greater than 15°, the pressure at the small diameter end may be greater than the pressure at other locations, resulting in a high airflow exit velocity at the small diameter end and inconsistent overall exit velocity.

[0081] The angle between the busbar and the axis is half of the angle b in Figure 3. Optionally, the angle b is 0, 5°, 10°, 15°, 20°, 25°, or 30°.

[0082] Optionally, the mounting base 110 and the air duct 120 are integrally formed, such as by integral injection molding or integral die casting, which requires no assembly and has high positioning accuracy, thereby ensuring the dimensional stability and assembly consistency of the product, greatly reducing assembly errors, improving assembly consistency, and thereby improving product index stability.

[0083] Optionally, the mounting base 110 and the air duct 120 are manufactured separately, which helps to reduce the manufacturing difficulty and facilitates the use of materials with different structural strengths to manufacture the mounting base 110 and the air duct 120 respectively.

[0084] In some embodiments, referring to Figure 5 , the air outlet 24 has a first air outlet wall 25 and a second air outlet wall 26 in the radial direction of the air duct 12. The ratio of the distance L between the first air outlet wall 25 and the second air outlet wall 26 to the outer diameter D of the air guide assembly 20 is 0.008-0.01, which is equivalent to a ratio of the cross-section of the high-speed airflow to the cross-section of the entire cavity of 0.008-0.01. This facilitates low-noise, high-volume air delivery from the air guide mechanism. Testing has shown that when L / D is less than 0.008, the pressure drop in the negative pressure zone is not significant, and the adsorption effect on the blown objects is weak. When L / D is greater than 0.01, the air guide mechanism produces high noise.

[0085] Optionally, the ratio of L / D is 0.008, 0.0085, 0.009, 0.0095 or 0.01.

[0086] In some embodiments, referring to Figures 5 and 10 , the distance L between the first air outlet wall 25 and the second air outlet wall 26 is 0.1 mm to 0.8 mm. This is to prevent L from being too small, which could hinder airflow and lead to poor heat dissipation, and to prevent L from being too large, which could lead to turbulent airflow and rapid temperature drop, thereby providing good air circulation and maintaining a moderate air temperature.

[0087] Optionally, L is 0.1 mm, 0.2 mm, 0.4 mm, 0.5 mm and 0.8 mm.

[0088] In some embodiments, in conjunction with Figures 3 and 10 , a first chamfer 211 is provided on the outer side of the air guide assembly 20 near the second side portion 22. The radius of the first chamfer 211 is 0.25 mm to 0.5 mm. In conjunction with Figure 4 , the provision of the first chamfer 211 can prevent the outgoing airflow from the rear air guide assembly 20 from colliding with the outgoing airflow from the air outlet 24, thereby facilitating the airflow to flow along the outer side of the air guide assembly 20, forming a Coanda effect. If the radius of the first chamfer 211 is too large, the airflow from the rear side may flow toward the air outlet 24. If the radius of the first chamfer 211 is too small, the outgoing airflow from the air outlet 24 may entangle at the first chamfer 211.

[0089] Optionally, the radius of the first chamfer 211 is 0.25 mm, 0.3 mm, 0.4 mm, or 0.5 mm.

[0090] In some embodiments, referring to Figures 3 and 10 , a second chamfer 212 is provided on the outer side of the air guide assembly 20 near the first side portion 21 . The radius of the second chamfer 212 is 1 mm to 2 mm. The provision of the second chamfer 212 facilitates the formation of a negative pressure zone and prevents the outgoing airflow from colliding with the first side portion 21 .

[0091] Optionally, the radius of the second chamfer 212 is 1 mm, 1.4 mm, 1.6 mm, 1.8 mm, or 2 mm.

[0092] In some embodiments, referring to Figures 3 and 10 , a first hook 221 is provided on the inner side of the first side portion 21 and / or the inner side of the second side portion 22. The first hook 221 is engaged with the support assembly 10 to stabilize the position of the air guide assembly 20 in the radial direction of the air duct 12. Thus, the first hook 221 enhances the stability and reliability of the air guide assembly 20 on the support assembly 10, preventing it from loosening or falling off in vibration and high-temperature environments, and simplifies the assembly and disassembly process, eliminating the need for specialized tools and providing high versatility.

[0093] Specifically, in conjunction with Figures 7 and 10, the first hook 221 extends into the interior of the air duct 12 through the air port 14 and is engaged. Optionally, the first hook 221 is hooked on the inner wall of the partition bar 121. Furthermore, the partition bar 121 of the support assembly 10 is provided with a notch 127, and the shape of the first hook 221 is adapted to the notch 127, so that the first hook 221 is assembled in the notch 127, and smoothly transitions with the side wall and inner wall of the partition bar 121, which is conducive to reducing wind resistance. At the same time, the first hook 221 is also limited in the length direction X, that is, the air guide assembly 20 is not only limited in the radial direction, but also in the length direction X, and the connection is tight.

[0094] Specifically, the second side portion 22 is provided with a first hook 221 .

[0095] In some embodiments, referring to Figures 3, 5, and 10, a first latch block 27 is provided on the inner side of the first side portion 21 and / or the inner side of the second side portion 22. A first latch groove 126 is provided on the outer surface of the support assembly 10. The first latch block 27 is engaged with the first latch groove 126 to achieve circumferential positioning of the air guide assembly 20 in the air duct 12, thereby improving the installation position accuracy. The first latch groove 126 does not penetrate the support assembly 10, which helps to improve the installation seal and facilitate assembly.

[0096] Optionally, both the first side portion 21 and the second side portion 22 are provided with a first latch block 27. The two first latch blocks 27 snap into one first latch slot 126. Simultaneously, the first side portion 21 of the preceding air guide assembly 20 and the second side portion 22 of the succeeding air guide assembly 20 snap into the same first latch slot 126. The multiple air guide assemblies 20 support each other circumferentially along the air duct 12, thereby improving the integrity of the multiple air guide assemblies 20.

[0097] Optionally, the first clamping block 27 extends along the length direction X and is slender, and the first clamping slot 126 extends along the length direction X and is slender, thereby increasing the contact area and the bonding force between the two.

[0098] In some embodiments, referring to Figures 8, 9, and 10, one of the first side portion 21 and the second side portion 22 is provided with a second clamping block 222, and the other of the first side portion 21 and the second side portion 22 is provided with a second clamping slot 213. The second clamping block 222 is engaged with the second clamping slot 213 to achieve circumferential and radial upper limit positioning of the air guide assembly 20 in the air duct 12. Based on this, the second clamping block 222 and the second clamping slot 213 can enhance the integrity of the two adjacent air guide assemblies 20, prevent them from loosening, ensure the stability of their positions, and be unaffected by thermal deformation of the support assembly 10.

[0099] Optionally, the second card block 222 extends along the length direction X, extending from one end of the air guide component 20 to the other end of the air guide component 20, and is slender. The second card slot 213 extends along the length direction X, extending from one end of the air guide component 20 to the other end of the air guide component 20, and is slender, which increases the contact area and bonding force between the two and simplifies the processing difficulty.

[0100] Optionally, with reference to Figure 10, the first clamping block 27 of the first side portion 21 is provided with a second clamping block 222, and the first clamping block 27 of the second side portion 22 is provided with a second clamping slot 213. In this way, the first side portion 21 of the preceding air guide assembly 20 and the second side portion 22 of the succeeding air guide assembly 20 are circumferentially limited in the air duct 12 by the first clamping block 27, and the interlocking second clamping block 222 and the second clamping slot 213 enhance integrity and stability.

[0101] In some embodiments, in combination with Figures 5 and 10, the first side portion 21 has a first limiting wall 223, and the second side portion 22 has a second limiting wall 214. The first limiting wall 223 and the second limiting wall 214 are in contact with each other, and the first limiting wall 223 and the second limiting wall 214 both extend along the length direction X of the air duct 12, thereby enhancing the mutual support force between the two adjacent air guide components 20 and facilitating sealed contact between the two.

[0102] Optionally, the second clamping block 222 extends along the length direction X and is slender, and the second clamping slot 213 extends along the length direction X and is slender, thereby increasing the contact area and the bonding force between the two.

[0103] Optionally, the first clamping block 27 of the first side portion 21 has a first limiting wall 223 , and the first clamping block 27 of the second side portion 22 has a second limiting wall 214 .

[0104] In this embodiment, the air guide assembly 20 is not only clamped in the first slot 126 of the support assembly 10 through the first clamping block 27 of the first side portion 21 and the second side portion 22 to be fixed on the support assembly 10, but also enhances the connection tightness between the air guide assembly 20 by setting the second clamping block 222 and the second slot 213, the first limiting wall 223 and the second limiting wall 214, thereby achieving multiple interlocking and self-locking, and improving the position stability of the air guide assembly 20, that is, ensuring that the diameter and the emission direction of the air outlet 24 are stable and do not occupy the space of the middle air cavity 23.

[0105] In some embodiments, referring to Figures 8 and 9 , the air guide assembly 20 includes a separately connected air shield 210 and an air guide frame 220. The air shield 210 has an air outlet 24. The air shield 210 is located on a side of the air guide frame 220 away from the air duct 12, and the air shield 210 is mounted on the outside of the support assembly 10. Separately manufacturing the air shield 210 and the air guide frame 220 facilitates the manufacture of multiple air outlets 24 and air cavities 23 spaced along the length direction X, thereby reducing the manufacturing difficulty of the air guide assembly 20. The combined use of the air shield 210 and the air guide frame 220 prevents unstable airflow caused by thermal deformation of the air shield 210 when used alone, while also preventing the L / D value from being affected by heat.

[0106] In one embodiment, as shown in Figures 13 and 14 , the air guide 220 includes a plurality of second ribs 224 spaced apart along the longitudinal direction X of the air duct 12. Two adjacent second ribs 224 and the inner surface of the wind deflector 210 enclose an air cavity 23. The second ribs 224 can increase the spatial size of the air cavity 23, thereby facilitating the emission of high-speed airflow.

[0107] Specifically, referring to FIG. 3 and FIG. 5 , the inner surface of the second rib 224 fits in contact with the outer surface of the support assembly 10 , thereby improving the airtightness between the air cavities 23 .

[0108] 3 and 5 , the side walls of the second ribs 224 correspond to the side walls of the air port 14 , and the airflow can smoothly transition to flow along the side walls of the second ribs 224 under the guidance of the side walls of the air port 14 , with low wind resistance.

[0109] Specifically, the inner surface of the windshield 210 is provided with third ribs 215 corresponding one-to-one to multiple second ribs 224, and the outer surface of the second ribs 224 fits with the inner surface of the third ribs 215, thereby increasing the size and relative sealing of the air cavity 23.

[0110] In one embodiment, in combination with Figures 11, 12 and 14, the air guide frame 220 is provided with limiting grooves 225 corresponding to multiple third ribs 215 at the first side portion 21, and the third ribs 215 are limitedly inserted into the limiting grooves 225, thereby enhancing the position stability between the air guide frame 220 and the wind shield 210.

[0111] In one embodiment, in combination with Figures 12, 13 and 14, one of the wind shield 210 and the wind guide frame 220 is provided with a third clamping block 216 on the first side portion 21, and one of the wind shield 210 and the wind guide frame 220 is provided with a clamping hole 226 on the first side portion 21, and the third clamping block 216 is clamped in the clamping hole 226, further improving the positional stability between the wind shield 210 and the wind guide frame 220.

[0112] In one embodiment, the air guide frame 220 is provided with a second hook 227 on the second side portion 22, and the second hook 227 is engaged in the air outlet 24. The top surface of the second hook 227 forms a second air outlet wall 26, which reduces the size of the air outlet 24, increases the airflow outlet speed, and increases the interlocking between the wind shield 210 and the air guide frame 220.

[0113] Optionally, the first locking block 27 of the first side portion 21 forms the second hook 227 .

[0114] In one embodiment, in conjunction with Figures 11 and 12, the windshield 210 is integrally formed, does not require assembly, and has high positioning accuracy, which can ensure the dimensional stability and assembly consistency of the product, greatly reduce assembly errors, improve assembly consistency, and thus improve the stability of product indicators.

[0115] In one embodiment, in conjunction with Figures 13 and 14, the air guide frame 220 is integrally formed, does not require assembly and has high positioning accuracy, which can ensure the dimensional stability and assembly consistency of the product, greatly reduce assembly errors, improve assembly consistency, and thus improve the stability of product indicators.

[0116] In one embodiment, the material of the wind shield 210 is the same as that of the wind guide frame 220, and the thermal expansion coefficients of the two are the same. Even during temperature changes, the sizes of the air outlet 24 and the air cavity 23 remain stable, which is conducive to stable airflow.

[0117] In some embodiments, the air guide mechanism further includes an end cap 30, which is mounted on an end of the support assembly 10 away from the air inlet 11. The end cap 30 not only improves the appearance of the air guide mechanism, but also provides heat insulation and is easier for users to hold.

[0118] Optionally, the end cover 30 is a half shell of a first cover plate 31 and a second cover plate 32. The first cover plate 31 is connected to the support assembly 10, and the second cover plate 32 is installed on the side of the first cover plate 31 away from the support assembly 10, further improving the appearance and heat insulation effect.

[0119] Example 2

[0120] The present application also provides a curling iron, which includes any one of the air guide mechanisms in the first embodiment.

[0121] Specifically, the curling iron further includes an air supply mechanism comprising a handheld housing, which houses electrical components such as a blower, a heating element, and an electronic control panel. The handheld housing also includes a button switch for controlling the blower and heating element. Hot air generated by the air supply mechanism enters an air duct 12 through an air inlet 11 of the support assembly 10.

[0122] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. An air guiding mechanism, characterized in that, The air guiding mechanism includes: A support assembly having an air inlet and an air duct communicating with the air inlet. The air duct is elongated and is divided into two or more air outlet portions along the length direction of the air duct. Each air outlet portion has a plurality of air ports arranged at intervals along the length direction of the air duct; An air guiding assembly. The number of the air guiding assemblies is the same as and corresponds one by one to the number of the air outlet portions. The air guiding assemblies cover the corresponding air outlet portions. The air guiding assemblies have a plurality of air cavities corresponding to and communicating with the air ports one by one. Each air guiding assembly has a first side portion and a second side portion in sequence along the circumferential direction of the air duct. The first side portion and the second side portion are both hermetically installed on the outer side of the support assembly. The second side portion has air outlets corresponding to and communicating with the plurality of air cavities one by one.

2. The air guiding mechanism according to claim 1, wherein: The air outlet portion has through holes penetrating the side wall of the air duct. A plurality of first ribs are arranged in the air outlet portion at intervals along the length direction of the air duct to divide the air outlet portion into a plurality of the air ports; The first ribs are inclined along the circumferential direction of the air duct, and the angle between the first ribs and the length direction of the air duct is 45° to 75°; 3. The air guiding mechanism according to claim 2, wherein: The air guiding mechanism further has at least one of the following features: All the first ribs are sequentially connected to form two or more helical lines. The number of the helical lines is the same as the number of the air outlet portions, and the two or more helical lines are wound at intervals; The extension line of each first rib coincides with one of the first ribs of the adjacent air outlet portion; The plurality of first ribs of each air outlet portion are equally spaced along the length direction of the air duct; The surfaces of the first ribs in the length direction of the air duct are a first plane and a second plane respectively, and the first plane and the second plane are parallel; The surfaces on both opposite sides of the first ribs in the radial direction of the air duct are arc surfaces; The angle between the first ribs and the length direction of the air duct is 45°, 50°, 55°, 60°, 65°, 70° or 75°; 4. The air guiding mechanism according to claim 1, characterized in that: The air outlet has a first air outlet wall and a second air outlet wall in the radial direction of the air duct. The ratio of the distance between the first air outlet wall and the second air outlet wall to the outer diameter of the air guiding assembly is 0.008 to 0.01; 5. The air guiding mechanism according to claim 1, wherein: A first chamfer is provided on the outer side surface of the air guiding assembly near the second side portion, and the radius of the first chamfer is 0.25 mm to 0.5 mm; And / or, a second chamfer is provided on the outer side surface of the air guiding assembly near the first side portion, and the radius of the second chamfer is 1 mm to 2 mm; 6. The air guiding mechanism according to claim 1, characterized in that, The air guiding mechanism further includes at least one of the following: A first hook is provided on the inner side of the first side portion and / or the inner side of the second side portion, and the first hook is clamped to the support assembly; A first block is provided on the inner side of the first side portion and / or the inner side of the second side portion, and a first slot is provided on the outer surface of the support assembly. The first block is clamped in the first slot; One of the first side portion and the second side portion is provided with a second engaging block, and the other of the first side portion and the second side portion is provided with a second engaging groove, and the second engaging block is engaged in the second engaging groove; The first side portion has a first limiting wall, the second side portion has a second limiting wall, the first limiting wall and the second limiting wall are attached to each other, and both the first limiting wall and the second limiting wall extend along the length direction of the air duct.

7. The air guiding mechanism according to claim 1, characterized in that: The air guiding assembly includes a wind deflector and an air guiding frame that are separately connected. The wind deflector has the air outlet, the wind deflector is located on the side of the air guiding frame away from the air duct, and the wind deflector is installed on the outside of the supporting assembly; The air guiding frame has a plurality of second ribs arranged at intervals along the length direction of the air duct, and an air cavity is defined by the inner surfaces of two adjacent second ribs and the inner surface of the wind deflector.

8. The air guiding mechanism according to claim 7, wherein, The air guiding mechanism further includes at least one of the following: The inner surface of the second rib is attached to the outer surface of the supporting assembly; The side wall of the second rib corresponds to the side wall of the air port; The inner surface of the wind deflector is provided with third ribs corresponding to the plurality of second ribs one by one, and the outer surface of the second rib is attached to the inner surface of the third rib; The air guiding frame is provided with limiting grooves corresponding to the plurality of third ribs at the first side portion, and the third ribs are limited and inserted into the limiting grooves; One of the wind deflector and the air guiding frame is provided with a third engaging block at the first side portion, and one of the wind deflector and the air guiding frame is provided with a engaging hole at the first side portion, and the third engaging block is engaged in the engaging hole; The wind deflector is integrally formed; The air guiding frame is integrally formed; The material of the wind deflector is the same as the material of the air guiding frame.

9. The air guiding mechanism according to any one of claims 1 to 8, characterized in that: The supporting assembly includes a mounting base and an air cylinder. The mounting base has an air inlet, one end of the air cylinder is connected to the mounting base, and the air cylinder has the air duct; The outer shape of the air cylinder is frustum-shaped, and the included angle between the generatrix of the air cylinder and the axis of the air cylinder is 0 to 15°.

10. A curling iron, characterized in that: The hair curler includes the air guiding mechanism according to any one of claims 1 to 9.

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