Air outlet structure and straightening iron

Abstract

The utility model provides an air outlet structure, including air duct structure, and at least part set up in air outlet portion and air inlet portion in air duct structure, be equipped with the noise reduction flow guide piece in air duct structure, the noise reduction flow guide piece includes the multiple air guide portion of distribution in air outlet portion, and air guide portion is used for guiding the airflow of air duct structure to blow out to air outlet portion, be equipped with the scattering structure for inhibiting airflow noise on air guide portion. The utility model discloses setting up the noise reduction flow guide piece in air duct structure, including the air guide portion with scattering structure of distribution in air outlet portion, wherein air guide portion is equipped with multiple to form several air outlet, when the airflow passes through multiple air guide portion with scattering structure, its flow state will be reorganized, makes that the turbulence intensity reduces to inhibit the generation of noise.

Description

Technical Field

[0001] This application relates to the field of hair styling equipment technology, and more specifically, to an air outlet structure and a hair straightener. Background Technology

[0002] As people's living standards improve year by year, people are paying more and more attention to hair care. In the process of continuous improvement of hair straightening devices, many hair straightening devices with blow-drying functions have emerged. Among them, air straighteners are becoming more and more popular with users due to their low cost, simple structure, and good hair straightening effect. During the hair straightening process, the upper and lower clamp components are used to heat and squeeze the hair after they are closed. When the hair is pulled down along the direction of the air outlet, the air can be blown out along the air outlet to straighten the hair, and finally achieve the effect of straightening and drying the hair.

[0003] Existing air straighteners often generate significant airflow noise during use, affecting the user experience. This noise problem is particularly pronounced in high-speed modes. For example, the interaction between multiple airflow streams can lead to stray gas or turbulence. Current technologies lack effective structures to suppress aerodynamic noise in the air duct, resulting in significant deficiencies in noise control. Utility Model Content

[0004] To address the noise problem caused by turbulence and stray gas during the use of existing air straighteners, this application provides an air outlet structure and a straightener. The air outlet structure includes noise-reducing guide components, including air guide sections with scattering structures distributed in the air outlet. Multiple air guide sections are provided to form several air outlets. When the airflow passes through the multiple air guide sections with scattering structures, its flow state is reorganized, thereby reducing the turbulence intensity and suppressing noise generation.

[0005] To achieve the above-mentioned effects, the technical solution provided in this application is as follows: An air outlet structure includes an air duct structure, and an air outlet and an air inlet at least partially disposed within the air duct structure. The air duct structure is provided with a noise reduction guide, which includes a plurality of guide sections distributed in the air outlet. The guide sections are used to guide the airflow of the air duct structure toward the air outlet. The guide sections are provided with a scattering structure for suppressing airflow noise.

[0006] According to some embodiments of this application, the air guide includes a diverter that protrudes in a direction away from the air outlet to form a plurality of linearly spaced air outlets on the air outlet. The scattering structure cooperates with the sidewall of the diverter to form a stepped surface with steps to divert and guide the airflow to the air outlets.

[0007] According to some embodiments of this application, the diverting element is a diverting rib protruding from the surface of the air outlet, the diverting element is a diverting rib protruding from the air outlet, the scattering structure is provided in at least two and is provided on both sides of the width direction of the diverting rib, and the number of steps formed by the scattering structure on the side wall of the diverting rib is greater than or equal to one.

[0008] According to some embodiments of this application, the top of the diversion rib is recessed with a windbreak structure for preventing airflow leakage.

[0009] According to some embodiments of this application, the diverter is an arc-shaped diverter plate protruding from the air outlet, and the arc-shaped diverter plate has a scattering structure on the side facing the air inlet.

[0010] According to some embodiments of this application, each of the arc-shaped diverter plates has a different sidewall area and curvature. The sidewall area is positively correlated with the distance between the corresponding arc-shaped diverter plate and the air inlet, and the curvature is negatively correlated with the distance between the corresponding arc-shaped diverter plate and the air inlet.

[0011] According to some embodiments of this application, the air inlet is provided with a fan, and the noise reduction guide further includes a noise reduction mesh disposed on the front side of the fan air inlet. The noise reduction mesh includes a grille air inlet structure, and the grille air inlet structure is provided with a comb-like structure for reducing noise.

[0012] According to some embodiments of this application, the grille air inlet structure includes a plurality of adjacently arranged air inlets, and the comb-like structure is formed by serrated protrusions continuously distributed circumferentially on the inner wall of the air inlets.

[0013] This application also provides a hair straightener, including the air outlet structure, and further including an upper clamp plate and a lower clamp plate. The lower clamp plate includes an upper cover and a lower cover. The air outlet structure is at least partially disposed in the mounting cavity of the lower cover. The upper cover and the lower cover are closed to form the air duct structure.

[0014] According to some embodiments of this application, the air outlet and the air inlet are located on both sides of the upper cover along the length direction, the air outlet is at least partially integrally formed with the upper cover, the air guide is located on the side of the air outlet facing the lower cover, and the air inlet is installed between the upper cover and the lower cover.

[0015] In the technical solution of this application, an air outlet structure is provided. By setting a noise reduction guide in the air duct structure, the airflow noise is reduced while guiding the airflow during the air outlet process. The noise reduction guide includes multiple guide sections distributed in the air outlet. The multiple guide sections are used to guide the direction of the airflow. At the same time, a scattering structure is set on the guide section to reorganize the airflow state passing through the guide section. Meanwhile, the airflow volume in different directions is adjusted by forming multiple air outlets by the guide section, thereby reducing the turbulence intensity when the airflow is blown out, reducing or even suppressing the airflow noise, and improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a portion of the structure of the hair straightener in an embodiment of this utility model; Figure 2 This is a schematic diagram of the air outlet and noise reduction guide in an embodiment of this utility model; Figure 3 This is a schematic diagram of the air outlet and noise reduction guide in another embodiment of the present invention; Figure 4 This is a schematic diagram of the air inlet in an embodiment of the present invention.

[0018] Reference numerals: 10, air duct structure; 20, air outlet; 21, air outlet; 30, air inlet; 31, fan; 40, noise reduction guide; 41, air guide; 411, scattering structure; 412, flow divider; 413, windbreak structure; 42, noise reduction mesh; 421, grille air inlet structure; 422, comb-like structure; 423, air inlet hole; 50, upper cover; 60, lower cover; 21', air outlet; 411', scattering structure; 412', arc-shaped flow divider. Detailed Implementation

[0019] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0021] The technical solution of this application will be described in detail below with reference to the accompanying drawings.

[0022] This application provides an air outlet structure, including an air duct structure, and an air outlet and an air inlet at least partially disposed within the air duct structure. The air duct structure is provided with a noise reduction guide, which includes a plurality of guide sections distributed in the air outlet. The guide sections are used to guide the airflow of the air duct structure toward the air outlet. The guide sections are provided with a scattering structure for suppressing airflow noise.

[0023] like Figure 1 As shown, the air outlet structure in this application includes an air duct structure 10, with at least a partial air outlet 20 and an air inlet 30 disposed within the air duct structure 10 to form a complete airflow channel. The air duct structure 10 is equipped with a noise-reducing guide 40 to reduce the turbulence intensity in the airflow channel and decrease airflow noise during the air outlet process. Specifically, refer to... Figure 1 The noise reduction guide 40 includes several air guide sections 41, which are spaced apart on the air outlet 20 to form multiple air outlets 21 facing the outside of the air outlet 20. The airflow enters the air duct structure 10 from the air inlet 30 and is blown out of the air outlet 20 after being guided by the air guide sections 41. In order to solve the noise problem of the air outlet structure in the prior art, this application provides a scattering structure 411 on the air guide section 41. When the airflow passes through the scattering structure, its flow state is reorganized. At the same time, the airflow volume is adjusted by multiple air outlets, which can significantly reduce the turbulence intensity and thus reduce the noise of the air outlet 21.

[0024] Furthermore, such as Figure 2 As shown, the air guide 41 includes a diverter 412, which protrudes away from the air outlet 20 to form multiple linearly spaced air outlets 21 on the air outlet 30. The scattering structure 411 cooperates with the sidewall of the diverter 412 to form a stepped surface with steps to divert and guide the airflow to the air outlets. In the embodiment provided by this solution, the diverter 412 defines multiple linearly spaced air outlets 21 on the air outlet 20 to change the flow direction of the airflow, thereby controlling the amount of airflow and the intensity of turbulence. At the same time, by setting the scattering structure 411 and the diverter 412 to form a stepped surface with steps, the flow state of the airflow is reorganized, that is, a noise reduction structure similar to the wings of a biomimetic owl is formed, that is, a comb-like structure at the leading edge of the wing composed of special primary feathers arranged in a serrated pattern. This structure will significantly reduce or even eliminate trailing edge scattering noise.

[0025] In one specific embodiment of this application, reference is made to Figure 2The diverter 412 is a diverter rib protruding from the air outlet 20. At least two scattering structures 411 are provided and are respectively provided on both sides of the diverter rib along the width direction, so that each air outlet 21 formed between adjacent diverters 412 contains at least two scattering structures 411 to improve the noise reduction effect. At the same time, the number of steps formed by the scattering structure 411 on the side wall of the diverter rib is greater than or equal to one. Among them, the structural complexity of setting a single step is relatively low, but the noise reduction effect is weaker than that of a multi-step design. The multi-step design will improve the noise scattering effect but the structural complexity is higher. The specific design is determined according to the actual needs in the application. This utility model does not make a specific limitation. In addition, the height of the scattering structure 411 is lower than the height of the diverter rib, that is, the height of the scattering structure 411 is limited. While forming a stepped structure, the overall height of the air guide is reduced, and the overall space occupation of the air duct structure 10 is reduced. In order to obtain a better noise reduction effect, the height of the scattering structure 411 should not be too high or too low. For example, its height is specifically set between 1 / 3 and 1 / 2 of the height of the diverter rib.

[0026] Furthermore, a windbreak structure 413 is recessed at the top of the diverter rib to prevent airflow leakage. The windbreak structure 413 is used to work with the air outlet 20 to prevent air leakage at the air outlet 21, thereby improving the user experience. In another embodiment, the windbreak structure 413 forms a small air duct at the top of the diverter 412 to disperse the airflow and further reduce the turbulence intensity. At the same time, a stepped structure is formed between the bottom concave surface of the air guide groove 413 and the top plane of the diverter 412, which, together with the scattering structure 411, enhances the overall noise reduction effect of the air duct structure 10.

[0027] In another embodiment of this application, such as Figure 3 As shown, the diverter 41 can also be an arc-shaped diverter plate 412' protruding from the air outlet 20. The arc-shaped diverter plate 412' has a scattering structure 411' on the side facing the air inlet 30. In this embodiment, several arc-shaped air outlets 21' are formed by the spaced arc-shaped diverter plates 412', which reduces the overall turbulence intensity of the airflow when it is blown out while realizing multi-channel air outlet. The scattering structure 411' is used to reorganize the airflow state of the air outlets 21' to reduce the noise when the air is vented. It should be noted that this structure is similar in principle to the above embodiment, and both adopt a biomimetic structural design similar to the wing of an owl, which can scatter noise or even eliminate scattered noise. Specifically, at least two scattering structures 411' are provided, as shown in the figure. Figure 3 Furthermore, the height of the scattering structure 411' gradually increases from the bottom to the top of the arc-shaped diverter plate 412', and the thickness of the scattering structure 411' is relatively smaller for the higher the height, so as to form a multi-level stepped structure with the arc-shaped diverter plate 412'.

[0028] Furthermore, each arc-shaped diverter plate 412' has a different sidewall area and curvature. The sidewall area is positively correlated with the distance between the corresponding arc-shaped diverter plate 412' and the air inlet 30, while the curvature is negatively correlated with the distance between the corresponding arc-shaped diverter plate 412' and the air inlet 30. This structure is designed to control the airflow at the air outlet 21'. That is, the closer the air outlet 21' is to the air inlet 30, the greater its airflow. At this time, by designing the sidewall area and curvature of the arc-shaped diverter plate 412', the airflow volume and velocity at each air outlet 21' are controlled. Since the airflow intensity is higher at the air outlet 21' near the air inlet 30, its inlet angle is set relatively smaller to limit the airflow volume per unit time. At the same time, since the sidewall area of ​​the arc-shaped diverter plate 412' is smaller, the interference of the airflow entering the next air outlet 21' is reduced.

[0029] As described above, two sets of arc-shaped diverter plates 412' can be provided, symmetrically arranged on both sides of the air outlet 20, so that the air outlet structure can maintain an air outlet 21' in working state when used in any direction, eliminating the need for turning or repeated use during use, thus improving the user experience.

[0030] In this application, the noise reduction guide 40, in addition to the air guides 41 distributed in the air outlet 20, also includes a noise reduction mesh 42 disposed in front of the air inlet of the fan 31, such as Figure 4 As shown, the fan 31 is located in the air inlet 30. The noise reduction net 42 includes a grille air inlet structure 421, and a comb-shaped structure 422 for noise reduction is provided inside the grille air inlet structure 421. By adding the noise reduction net 42 to the air inlet 20, eddy current and scattered noise are suppressed when the airflow enters the fan 31, and the overall noise reduction performance is further improved. The noise reduction net is designed in the form of a grille air inlet, which absorbs part of the impact energy generated by the airflow collision in front of the fan 31, thereby slowing down the propagation of noise. In order to enhance the noise reduction performance, this embodiment also provides a comb-shaped structure in the noise reduction net 42, which can further scatter noise.

[0031] Specifically, the grille air intake structure 421 includes a plurality of adjacently arranged air intake holes 423. The comb-like structure 422 is formed by serrated protrusions continuously distributed circumferentially on the inner wall of the air intake holes 423. The air intake holes 423 can be arranged in a polygonal structure. The honeycomb-shaped grille air intake structure 421 is formed by a plurality of adjacent air intake holes 423. Thanks to the energy absorption effect of the honeycomb structure, the grille air intake structure 421 has a slowing effect on the propagation of noise. The circumferentially continuously distributed serrated protrusion structure is similar to the comb-like feature of the leading edge of the eagle's wing and has a good noise reduction function. That is, in this embodiment, the serrated protrusion comb-like structure 422 combined with the honeycomb-shaped grille air intake structure 421 can further improve the quiet performance of the air intake part 30.

[0032] This application also provides a hair straightener, see reference. Figure 1 The device includes the aforementioned air outlet structure, as well as an upper clamping plate and a lower clamping plate. The lower clamping plate further includes an upper cover 50 and a lower cover 60. The air outlet structure is at least partially disposed in the mounting cavity of the lower cover 60. After the upper cover 50 and the lower cover 60 are closed, an air duct structure 10 is formed. Specifically, the air duct structure 10 and the air outlet 20 are disposed in the mounting cavity, and the air duct structure 10 is formed on one side after the upper cover 50 and the lower cover 60 are closed. Further, the air outlet 20 and the air inlet 30 are respectively disposed on both sides of the upper cover 50 along the length direction. The air outlet 20 is at least partially integrally formed with the upper cover 50. The air guide 41 is disposed on the side of the air outlet 20 facing the lower cover. The air inlet 30 is installed between the upper cover 50 and the lower cover 60, that is, the air outlet structure is integrated into the overall structure of the hair straightener, so that the hair straightener has a better noise control effect and improves the user's experience when straightening hair.

[0033] It should be noted that the air outlet structure in this application can also be used in other blow-drying devices, such as hair dryers, curling irons and other hair styling products. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes and modifications made in accordance with the present invention are covered by the scope of the claims of the present invention, and will not be listed here.

[0034] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0036] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. An air outlet structure, characterized in that, It includes a duct structure, and an air outlet and an air inlet at least partially disposed within the duct structure. The duct structure is provided with a noise reduction guide, which includes a plurality of guide sections distributed in the air outlet. The guide sections are used to guide the airflow of the duct structure toward the air outlet. The guide sections are provided with a scattering structure for suppressing airflow noise.

2. The air outlet structure according to claim 1, characterized in that, The air guide includes a diverter that protrudes away from the air outlet to form multiple linearly spaced air outlets on the air outlet. The scattering structure cooperates with the sidewall of the diverter to form a stepped surface to divert and guide the airflow to the air outlets.

3. The air outlet structure according to claim 2, characterized in that, The diverting component is a diverting rib protruding from the air outlet. The scattering structure has at least two parts and is located on both sides of the width direction of the diverting rib. The number of steps formed by the scattering structure on the side wall of the diverting rib is greater than or equal to one.

4. The air outlet structure according to claim 3, characterized in that, The top of the diversion rib is recessed with a windbreak structure to prevent airflow leakage.

5. The air outlet structure according to claim 2, characterized in that, The diverter is an arc-shaped diverter plate protruding from the air outlet, and the side of the arc-shaped diverter plate facing the air inlet has a scattering structure.

6. The air outlet structure according to claim 5, characterized in that, Each of the arc-shaped diverter plates has a different sidewall area and curvature. The sidewall area is positively correlated with the distance between the corresponding arc-shaped diverter plate and the air inlet, and the curvature is negatively correlated with the distance between the corresponding arc-shaped diverter plate and the air inlet.

7. The air outlet structure according to claim 1, characterized in that, The air inlet is equipped with a fan, and the noise reduction guide also includes a noise reduction net located in front of the fan inlet. The noise reduction net includes a grille air inlet structure, and the grille air inlet structure has a comb-like structure inside for reducing noise.

8. The air outlet structure according to claim 7, characterized in that, The grille air intake structure includes a plurality of adjacently arranged air intake holes, and the comb-like structure is formed by serrated protrusions that are continuously distributed circumferentially on the inner wall of the air intake holes.

9. A hair straightener, comprising the air outlet structure according to any one of claims 1-8, characterized in that, It includes an upper clamping plate and a lower clamping plate. The lower clamping plate includes an upper cover and a lower cover. The air outlet structure is at least partially disposed in the mounting cavity of the lower cover. The upper cover and the lower cover are closed to form the air duct structure.

10. A hair straightener according to claim 9, characterized in that, The air outlet and air inlet are located on both sides of the upper cover along its length. The air outlet is at least partially integrally formed with the upper cover. The air guide is located on the side of the air outlet facing the lower cover. The air inlet is installed between the upper cover and the lower cover.

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