Flow guide structure and cold air hair straightener with flow guide structure

Abstract

The invention relates to the technical field of cold air hair straighteners, and particularly discloses a flow guide structure which comprises a front-end flow guide part and a flow guide assembly, an air inlet part is formed at one end of the front-end flow guide part, an air outlet part is formed at the other end of the front-end flow guide part, the air inlet part is matched with a fan for conveying airflow, and the air outlet part is communicated with the flow guide assembly; an air inlet is formed in one end of the air guide part and connected with the air inlet part, the other end of the air guide part is connected with the flow dividing part, a partition plate used for guiding airflow is arranged on the flow dividing part and abuts against the external upper clamping plate and / or the external lower clamping plate to form an air channel, and the air channel is used for communicating the air inlet with an air outlet in the external clamping plate. Air flow can be evenly distributed through the air channels formed by the partition plates and the clamping plates, the risk of local overheating or insufficiency is reduced, independent parts are reduced through the integrated flow guide assembly, the overall assembly precision is improved, the connection mode is simple, and production and follow-up maintenance are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of cold air hair straighteners, and in particular discloses a flow guiding structure and a cold air hair straightener with the flow guiding structure. Background Art

[0002] With the continuous development of household beauty appliances and personal care devices, air duct styling devices such as cold air hair straighteners are widely used in the market. These devices are driven by a blower fan and a motor, and the airflow in the air duct is used to heat, soften and shape the hair to meet the consumers' needs for diverse hairstyles and rapid styling. However, in the prior art, the problem of air duct noise has always been one of the important factors affecting the user experience of the product.

[0003] In the prior art, the flow guiding structure is usually composed of multiple independent components, such as separate flow guiding components, connecting pieces, partition plates, etc. These components often have problems such as inaccurate positioning and large assembly errors during the assembly process, resulting in local overheating or insufficiency of the airflow during transmission, thereby affecting the working efficiency of the overall air duct and the styling performance of the device.

[0004] In addition, due to the scattered components and complex connection methods of the traditional flow guiding structure, in addition to increasing the manufacturing and assembly costs, it also brings inconvenience to the subsequent maintenance and repair of the device. Especially during the airflow transmission process, the uneven airflow distribution is prone to form eddy currents, further exacerbating the instability of noise and heat distribution, and affecting the user experience and product reliability.

[0005] Therefore, there is an urgent need for a flow guiding structure that is simple in structure, integrally designed, easy to install, can effectively divide the airflow, reduce eddy current noise, and improve the airflow uniformity and device reliability. Summary of the Invention

[0006] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the present invention is to provide a flow guiding structure and a cold air hair straightener with the flow guiding structure, which have high assembly accuracy, simple connection method, are convenient for production and subsequent maintenance, and have low noise.

[0007] To achieve the above-mentioned purpose, a flow guide structure of the present invention includes a front-end flow guide member and a flow guide assembly, wherein one end of the front-end flow guide member forms an air inlet, and the other end of the front-end flow guide member forms an air outlet, the air inlet and the fan cooperate to convey the airflow, and the air outlet is connected to the flow guide assembly, the flow guide assembly includes a diverter and a flow guide member, one end of the flow guide member is provided with an air inlet, the air inlet is connected to the air inlet, and the other end of the flow guide member is connected to the diverter, and the diverter is provided with a partition plate for guiding the airflow, the partition plate abuts against the external upper clamping plate and / or the external lower clamping plate to form an air duct, the external upper clamping plate and the external lower clamping plate are collectively referred to as clamping plates below, and the air duct is used to connect the air inlet and the air outlet on the clamping plate. The air duct formed by the partition plate and the clamping plate of the present invention can evenly distribute the airflow and reduce the risk of local overheating or insufficient airflow. The design of the flow guide member has an obvious airflow stabilization effect, and its long strip cross section can constrain the airflow to advance in a single direction, reduce the lateral diffusion of air, and reduce the vortex phenomenon caused by airflow separation. Because the eddy current is reduced, the noise is also effectively controlled. In particular, in addition to the basic noise generated by the operation of the fan and the motor, this structure can further reduce the noise caused by airflow turbulence, making the overall working environment quieter.

[0008] Furthermore, the air guide is provided with edges on both sides in the longitudinal direction, the edges extend from the air inlet toward the partition plate, the edges contact the upper clamping plate and / or the outer lower clamping plate, and a groove is provided on the side of the clamping plate away from the diversion portion, and the groove is used to accommodate the external heating component. The setting of the edges ensures that the airflow is not easy to leak sideways in the air guide, effectively constrains the airflow to flow along a predetermined path, and improves the stability and efficiency of airflow transmission; the groove design reserves space so that the external heating component can be integrated into the overall structure, reducing external additional devices, optimizing the internal space layout, and the integrated design helps to reduce the number of assembly steps and parts, thereby reducing production costs.

[0009] Furthermore, the guide assembly is provided with two groups, the two groups of guide assemblies are respectively a first guide assembly and a second guide assembly, and the first guide assembly and the second guide assembly are respectively installed in the external upper clamping plate and the external lower clamping plate. The two groups of guide assemblies act on different areas of the upper clamping plate and the lower clamping plate respectively, so that the airflow distribution can be optimized and controlled for different parts, forming a multi-level diversion, meeting the airflow requirements of different parts, and improving the overall performance; the grouping design helps to balance the structural stress and improve the heat dissipation and shaping effect.

[0010] Furthermore, the front end air guide is a flexible three-way air duct. One end of the flexible three-way air duct is the air inlet part, and the other end is two air outlet parts, namely the first air outlet part and the second air outlet part. The first air outlet part is inserted and matched with the first air guide component, and the second air outlet part is inserted and matched with the second air guide component. When the upper clamping plate and the lower clamping plate rotate or adjust the angle, the flexible three-way air duct can also automatically adapt to this relative movement, ensuring that there is always a tight connection between the front end air guide and the air guide components. This tight connection not only ensures that the air flow does not leak during rotation, but also effectively enhances the sealing performance of the air guide structure, further improving the stability of air flow transmission and the energy efficiency of the overall device.

[0011] By absorbing and compensating for the small displacements generated by the rotation of the upper clamping plate and the lower clamping plate, the flexible three-way air duct avoids the problems of eddy currents and noise caused by loosening at the interface, thus providing a more reliable and durable operation guarantee for the equipment.

[0012] The insertion and matching ensure a good sealing interface between the flexible three-way air duct and the air guide components, effectively preventing air leakage at the interface. In this way, the air flow entering the system can be evenly distributed at each air outlet, improving the overall air guide efficiency, ensuring stable air flow transmission, effectively reducing the problems of heat concentration or insufficient heat dissipation caused by uneven local flow velocity, and further reducing the noise caused by turbulence or eddy currents in the air duct.

[0013] The insertion method has a simple structure, facilitating rapid assembly during mass production, reducing the complexity of the assembly process and labor costs. At the same time, this structure is convenient for subsequent disassembly, maintenance and replacement, improving the overall maintenance efficiency and reliability of the product.

[0014] Furthermore, the rotation range of the angle between the first air outlet part and the second air outlet part is 25° - 75°.

[0015] This design helps to form a continuous and stable air flow channel, making the heat distribution in the lower clamping plate area more balanced, reducing the risk of local overheating, and improving the overall thermal management effect of the equipment.

[0016] The first air outlet part has an adjustable rotation angle relative to the second air outlet part, and the rotation angle can be controlled between 25° and 75°. This adjustable rotation design enables the first air outlet part to flexibly adjust the air flow transmission direction according to different working conditions or changes in the internal structure of the equipment, so that the air flow can be better integrated and distributed when entering the upper air duct, thereby reducing the eddy currents and air flow separation phenomena caused by angle mismatch, further reducing noise and improving energy efficiency.

[0017] Furthermore, the first air guiding assembly further includes an upper inner cover plate, which is arranged on the side of the air guiding member away from the air duct. The width of the upper inner cover plate is greater than that of the air guiding member, and a wire passing channel is formed between the upper inner cover plate and the air guiding member.

[0018] Furthermore, the air guiding assembly is an integrally formed structure.

[0019] Through integral forming, the air guiding member and the inner cover plate, which originally needed to be separately manufactured and assembled, are integrated into a whole, significantly saving the number of components, reducing the required accessories, thus simplifying the overall assembly process and lowering the production and assembly costs; due to the use of integral forming technology, there is no need to separately install the air guiding member and the inner cover plate, and the steps in the assembly process are greatly reduced, improving the production efficiency, while reducing the risk of failures caused by assembly errors, facilitating later maintenance and replacement.

[0020] The integrally formed structural design creates a larger wire routing space, providing a sufficient reserved area for internal wiring, signal transmission, etc., facilitating the reasonable layout and installation of electronic components, and contributing to the realization of modular management inside the system.

[0021] After the inner cover plate and the air guiding member are integrally formed, the overall structural rigidity is greatly improved, strengthening the bearing capacity and anti-vibration performance of the upper clamping plate, ensuring the stability and durability of the equipment during operation, and effectively preventing deformation or damage caused by local structural weaknesses.

[0022] Furthermore, the partition plate includes multiple groups of first partition plates and multiple groups of second partition plates. The first partition plates and the second partition plates are arranged alternately along the longitudinal length direction of the clamping plate. The length of the first partition plates is greater than that of the second partition plates. By setting partition plates of different sizes, the partition plate can more precisely control the air flow direction, forming multiple small air ducts. The multi-level and multi-angle partition plate design can finely control the air flow, improve the air flow stability, accurately split the flow to ensure that each part inside the equipment obtains an appropriate amount of air flow, enhancing the heat dissipation and shaping effects. The careful splitting of the flow helps to reduce air flow impact and turbulent noise, improving the user experience.

[0023] Furthermore, the diversion structure further includes a connection component, which includes an upper fixing member, a lower fixing member and an elastic member. The upper fixing member is provided with a mounting hole. The first air outlet portion is connected to the upper fixing member through the mounting hole. One end of the upper fixing member is hinged to the external lower clamping plate, and the other end of the upper fixing member is fixedly connected to the upper clamping plate through a fastener. The second air outlet portion is connected to the external lower clamping plate through the lower fixing member. One end of the elastic member is connected to the upper fixing member, and the other end of the elastic member abuts against the lower fixing member. This connection component is used to reliably fix the air outlet portion of the flexible three-way air duct on the external clamping plate, and at the same time use the elastic member to absorb the minor deviations during installation and the vibrations generated during operation, ensuring the firmness of the overall structure and the stable output of the air flow. The connection component is reasonably designed and the installation steps are clear, which is convenient for quick assembly and debugging.

[0024] A cold air hair straightener with a diversion structure includes the diversion structure described in any one of the above. The cold air hair straightener further includes an upper clamping plate, a lower clamping plate and a air supply unit. The upper clamping plate is hinged to the lower clamping plate. The upper clamping plate includes an upper cover plate and an upper heating component arranged on the upper cover plate. The lower clamping plate includes a lower cover plate, a lower heating component arranged on the lower cover plate, a control unit and a lower inner cover plate; the air supply unit has a fan, and the air flow generated by the fan flows through the diversion structure to the air outlet on the upper cover plate and / or the lower cover plate. After the fan generates the air flow, through the regulation of the integrated diversion structure, the air flow is evenly distributed in the areas where the upper and lower heating components are located through each air outlet. At the same time, it has the functions of heating and cold air diversion, so that the hair straightener can not only straighten the hair but also realize the curling styling. The diversion structure ensures uniform air flow distribution, improves the heating and cooling efficiency, and improves the styling effect. The integrated design of the upper clamping plate, the lower clamping plate and the air supply unit reduces the volume of the device and the manufacturing cost, and at the same time simplifies the assembly process.

[0025] The beneficial effects of the present invention: The air duct formed by the partition plate and the clamping plate of the present invention can evenly distribute the air flow, reducing the risk of local overheating or insufficiency. The design of the air guiding member has an obvious air flow stabilization effect. Its long strip-shaped cross-section can restrict the air flow to move in a single direction, reducing the lateral diffusion of air and reducing the eddy current phenomenon caused by air flow separation; precisely because the eddy current is reduced, the noise is effectively controlled. Especially in addition to the basic noise generated by the operation of the fan and the motor, this structure can further reduce the noise caused by air flow disorder, making the overall working environment quieter;

[0026] Through integral molding, the air guiding member and the inner cover plate, which originally needed to be manufactured and assembled separately, are integrated into a whole, significantly saving the number of components, reducing the required accessories, thereby simplifying the overall assembly process and reducing the production and assembly costs; due to the use of integral molding technology, there is no need to install the air guiding member and the inner cover plate separately, and the steps in the assembly process are greatly reduced, improving the production efficiency, and at the same time reducing the risk of failures caused by assembly errors, which is convenient for later maintenance and replacement. Description of the Drawings

[0027] Figure 1 Structural schematic diagram of a diversion structure of the present invention;

[0028] Figure 2 Structural schematic diagram of the first diversion component of the present invention;

[0029] Figure 3 Structural schematic diagram of the installation of the connection component and the front-end diversion member of the present invention;

[0030] Figure 4 Structural schematic diagram of the second diversion component of the present invention;

[0031] Figure 5 Structural schematic diagram of the connection component of the present invention;

[0032] Figure 6 Structural schematic diagram of an open state of a cold air hair straightener with a diversion structure of the present invention;

[0033] Figure 7 Exploded view of a cold air hair straightener with a diversion structure of the present invention;

[0034] Figure 8 Structural schematic diagram of a closed state of a cold air hair straightener with a diversion structure of the present invention;

[0035] Figure 9 Structural schematic diagram of the front-end diversion member, the connection component and the lower inner cover plate of the present invention;

[0036] Figure 10 Structural schematic diagram of a closed state of the front-end diversion member of the present invention;

[0037] Figure 11 Structural schematic diagram of an open state of the front-end diversion member of the present invention.

[0038] Reference numerals include:

[0039] 1. Front-end air deflector; 2. First air deflector assembly; 3. Second air deflector assembly; 4. Air inlet section; 5. Arc-shaped hair-wrapping section; 6. Air diversion section; 7. Air guiding member; 8. Air inlet; 9. Partition plate; 10. Air duct; 11. Perimeter edge; 12. Groove; 13. Handheld part; 14. First air outlet section; 15. Second air outlet section; 16. Upper inner cover plate; 17. Wire passing channel; 18. First partition board; 19. Second partition board; 20. Connection assembly; 21. Upper fixing member; 22. Lower fixing member; 23. Elastic member; 24. Upper clamping plate; 25. Lower clamping plate; 26. Upper cover plate; 27. Upper heating assembly; 28. Lower cover plate; 29. Lower heating assembly; 30. Control unit; 31. Lower inner cover plate; 32. Fan; 33. Air outlet; 34. First vertical part; 35. First extension part; 36. Second vertical part; 37. Second extension part. Detailed implementation manners

[0040] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0041] Please refer to Figures 1 to 11 As shown, a air deflector structure of the present invention includes a front-end air deflector 1 and an air deflector assembly. One end of the front-end air deflector 1 forms an air inlet section 4, and the other end of the front-end air deflector 1 forms an air outlet section. The air inlet section 4 cooperates with the fan 32 to convey air flow. The air outlet section is communicated with the air deflector assembly. The air deflector assembly includes an air diversion section 6 and an air guiding member 7. One end of the air guiding member 7 is provided with an air inlet 8, and the air inlet 8 is connected to the air inlet section 4. The other end of the air guiding member 7 is connected to the air diversion section 6. The air diversion section 6 is provided with a partition plate 9 for guiding the air flow. The partition plate 9 abuts against the external upper clamping plate 24 and / or the external lower clamping plate 25 to form an air duct 10. The external upper clamping plate 24 and the external lower clamping plate 25 are hereinafter collectively referred to as clamping plates. The clamping plates are provided with air outlets 33 near the partition plate 9. The air duct 10 is used to communicate the air inlet 8 and the air outlets 33 on the clamping plates.

[0042] Specifically, the air guiding member 7 is of a strip-shaped structure.

[0043] The air duct 10 formed by the partition plate 9 and the clamping plates in the present invention can evenly distribute the air flow, reducing the risk of local overheating or insufficiency. The design of the air guiding member 7 has an obvious air flow stabilizing effect. Its strip-shaped air guiding surface can restrain the air flow to advance in a single direction, reducing the lateral diffusion of air and reducing the eddy current phenomenon caused by air flow separation. Because the eddy current is reduced, the noise is effectively controlled. Especially in addition to the basic noise generated by the operation of the fan and the motor, this structure can further reduce the noise caused by air flow disorder, making the overall working environment quieter.

[0044] The air guide 7 is provided with a peripheral edge 11 on both sides in the longitudinal direction, and the peripheral edge 11 extends from the air inlet 8 to the partition plate 9, and the peripheral edge 11 contacts the upper clamping plate 24 and / or the outer lower clamping plate 25. The side of the clamping plate away from the diverter 6 is provided with a groove 12, and the groove 12 is used to accommodate the external heating component. The setting of the peripheral edge 11 ensures that the airflow is not easy to leak sideways in the air guide 7, effectively constrains the airflow to flow along the predetermined path, and improves the stability and efficiency of airflow transmission; the design of the groove 12 reserves space so that the external heating component can be integrated into the overall structure, reducing external additional devices, optimizing the internal space layout, and the integrated design helps to reduce the number of assembly steps and parts, thereby reducing production costs.

[0045] There are two groups of flow guide components, namely the first flow guide component 2 and the second flow guide component 3, which are respectively installed in the external upper clamping plate 24 and the external lower clamping plate 25. The two groups of flow guide components act on different areas of the upper clamping plate 24 and the lower clamping plate 25, respectively, so that the airflow distribution can be optimized and controlled for different parts, forming a multi-level diversion, meeting the airflow requirements of different parts, and improving the overall performance; the grouping design helps to balance the structural stress and improve the heat dissipation and shaping effect.

[0046] The front-end air guide 1 is a flexible three-way air guide duct, one end of which is an air inlet 4, and the other end of which is two air outlets, which are a first air outlet 14 and a second air outlet 15, respectively. The first air outlet 14 is plugged with the first air guide component 2, and the second air outlet 15 is plugged with the second air guide component 3. When the upper clamping plate 24 and the lower clamping plate 25 rotate or adjust the angle, the flexible three-way air guide duct can also automatically adapt to this relative movement, ensuring that the front-end air guide 1 and the air guide component always maintain a tight connection. This tight connection not only ensures that the airflow does not leak during the rotation process, but also effectively enhances the sealing of the air guide structure, further improving the stability of airflow delivery and the energy efficiency of the overall device.

[0047] By absorbing and compensating for the minute displacement caused by the rotation of the upper clamping plate 24 and the lower clamping plate 25, the flexible three-way air duct avoids the eddy current and noise problems caused by looseness at the interface, thereby providing a more reliable and lasting operation guarantee for the equipment.

[0048] The plug-in fit ensures a good sealing interface between the flexible three-way air guide and the guide assembly, effectively preventing airflow leakage at the interface. In this way, the airflow entering the system can be evenly distributed at each air outlet 33, improving the overall guide efficiency, ensuring stable airflow transmission, effectively reducing the heat concentration or insufficient heat dissipation caused by uneven local flow rate, and further reducing the noise caused by turbulence or eddy currents in the air duct 10.

[0049] The plug-in method has a simple structure, which is convenient for rapid assembly during mass production, reducing the complexity of the assembly process and labor costs. At the same time, this structure is convenient for subsequent disassembly, maintenance and replacement, improving the overall maintenance efficiency and reliability of the product.

[0050] The rotation range of the angle between the first air outlet part 14 and the second air outlet part 15 is 25° - 75°.

[0051] Specifically, the air outlet direction of the second air outlet part 15 is basically parallel and fixed to the longitudinal horizontal direction of the external lower clamping plate 25. The first air outlet part 14 is fixed to the external upper clamping plate 24 and can rotate with the rotation of the upper clamping plate 24, and rotates and deforms within the range of 25° - 75° with respect to the longitudinal horizontal direction of the external lower clamping plate 25.

[0052] The second air outlet part 15 is arranged in parallel with the external lower clamping plate 25. This parallel layout ensures that when the second air outlet part 15 coming out of the flexible three-way air duct transfers air flow, it always remains consistent with the surface of the lower clamping plate 25, thus ensuring the uniform distribution and stable transportation of the air flow in the lower area. This design helps to form a continuous and stable air flow channel, making the heat distribution in the area of the lower clamping plate 25 more balanced, reducing the risk of local overheating, and improving the overall thermal management effect of the equipment.

[0053] The first air outlet part 14 has an adjustable rotation angle relative to the second air outlet part 15, and the rotation angle can be controlled between 25° and 75°. This adjustable rotation design enables the first air outlet part 14 to flexibly adjust the air flow transportation direction according to different working states or changes in the internal structure of the equipment, so that the air flow can be better integrated and distributed when entering the upper air duct 10, thereby reducing the vortex and air flow separation phenomena caused by angle mismatch, further reducing noise and improving energy efficiency.

[0054] The first guide component 2 further includes an upper inner cover plate 16. The upper inner cover plate 16 is arranged on the side of the air guide member 7 away from the air duct 10. The width of the upper inner cover plate 16 is greater than the width of the air guide member 7, and a wire passing channel 17 is formed between the upper inner cover plate 16 and the air guide member 7.

[0055] The upper inner cover plate 16 and the air guide member 7 are of an integrally formed structure.

[0056] Through integral molding, the air guide member 7 and the upper inner cover plate 16, which originally needed to be separately manufactured and assembled, are integrated into a whole, significantly saving the number of components, reducing the required accessories, thus simplifying the overall assembly process and reducing the production and assembly costs; due to the use of integral molding technology, there is no need to separately install the air guide member 7 and the upper inner cover plate 16, greatly reducing the steps in the assembly process, improving the production efficiency, and at the same time reducing the risk of failures caused by assembly errors, which is convenient for later maintenance and replacement.

[0057] The integrated structural design creates a larger wiring space, providing a sufficient reserved area for internal wiring, signal transmission, etc., facilitating the reasonable layout and installation of electronic components, and contributing to the modular management within the system.

[0058] After the upper inner cover plate 16 and the air guiding member 7 are integrally formed, the overall structural rigidity is greatly improved, strengthening the bearing capacity and anti-vibration performance of the upper clamping plate 24, ensuring the stability and durability of the equipment during operation, effectively preventing deformation or damage caused by local structural weaknesses, and at the same time enabling the holding part 13 of the upper clamping plate 24 to be relatively thin, leaving more space for the holding part 13 of the lower clamping plate 25.

[0059] The partition plate 9 includes multiple groups of first partition plates 18 and multiple groups of second partition plates 19. The first partition plates 18 and the second partition plates 19 are arranged alternately along the longitudinal length direction of the clamping plate, and the length of the first partition plate 18 is greater than the length of the second partition plate 19. By setting partition plates of different sizes, the partition plate 9 can more precisely control the air flow direction, forming multiple small air ducts 10. The multi-level and multi-angle partition plate design can finely control the air flow, improve the air flow stability, accurately split the flow to ensure that each part inside the equipment obtains an appropriate amount of air flow, enhancing the heat dissipation and shaping effects. The detailed splitting helps to reduce air flow impact and turbulent noise, improving the user experience.

[0060] Specifically, the first partition plate 18 includes a first vertical portion 34 extending substantially perpendicular to the longitudinal length direction of the clamping plate and a first extension portion 35 connected to the first vertical portion 34 and having a length extending substantially along the longitudinal length direction of the clamping plate. The second partition plate 19 includes a second vertical portion 36 extending substantially perpendicular to the longitudinal length direction of the clamping plate and a second extension portion 37 connected to the second vertical portion 36 and having a length extending substantially along the longitudinal length direction of the clamping plate. The length of the first extension portion 35 is greater than the length of the second extension portion 37.

[0061] Specifically, the setting of the first extension portion 35 allows the air flow to flow along the length direction of the first extension portion 35, and the air flow located inside the first extension portion 35 will be blown out from the air outlet 33 on the upper clamping plate 24 and / or the lower clamping plate 25 after flowing to the first vertical portion 34 and being blocked by the first vertical portion 34. Therefore, the first vertical portion 34 is disposed beside its corresponding air outlet 33.

[0062] The diversion structure further includes a connection component 20, which includes an upper fixing piece 21, a lower fixing piece 22 and an elastic piece 23. The upper fixing piece 21 is provided with a mounting hole. The first air outlet part 14 is connected to the upper fixing piece 21 through the mounting hole. The upper fixing piece 21 is fixedly connected to the upper clamping plate 24 through a fastener. The external upper clamping plate 24 is hinged to the external lower clamping plate 25 via the upper fixing piece 21. The second air outlet part 15 is connected to the external lower clamping plate 25 via the lower fixing piece 22. One end of the elastic piece 23 abuts against the upper fixing piece 21 or the upper clamping plate 24, and the other end of the elastic piece 23 abuts against the lower fixing piece 22 or the lower clamping plate 25, continuously applying an opening force to the upper clamping plate 24 and the lower clamping plate 25. The connection component 20 is used to reliably fix the air outlet part of the flexible three-way air duct on the external clamping plate. The connection component 20 is reasonably designed and the installation steps are clear, facilitating quick assembly and debugging.

[0063] A cold air hair straightener with a diversion structure includes the diversion structure described in any one of the above. The cold air hair straightener further includes an upper clamping plate 24, a lower clamping plate 25 and a air supply unit. The upper clamping plate 24 is hinged to the lower clamping plate 25. The upper clamping plate 24 includes an upper cover plate 26 and an upper heating component 27 arranged on the upper cover plate 26. The lower clamping plate 25 includes a lower cover plate 28, a lower heating component 29 arranged on the lower cover plate 28, a control unit 30 and a lower inner cover plate 31. The air supply unit has a fan 32. The air flow generated by the fan 32 flows through the air inlet part 4 of the front end diversion piece 1 to the air outlet 33 on the upper cover plate 26 and / or the lower cover plate 28. After the fan 32 generates the air flow, through the regulation of the integrated diversion structure, the air flow is evenly distributed in the nearby areas corresponding to the upper and lower heating components 29 through each air outlet 33, and at the same time has the functions of heating and cold air diversion, so that the hair straightener can not only straighten the hair but also realize the curly hair styling. The diversion structure ensures uniform air flow distribution, improves the heating and cooling efficiency, and improves the styling effect. The integrated design of the upper clamping plate 24, the lower clamping plate 25 and the air supply unit reduces the volume and manufacturing cost of the device, and at the same time simplifies the assembly process.

[0064] Specifically, the upper cover plate 26 includes an arc-shaped hair winding part 5 and a hand-held part 13. The air guiding piece 7 of the first diversion component 2 penetrates through the hand-held part 13. The diversion part 6 of the first diversion component 2 is placed inside the arc-shaped hair winding part 5. The upper inner cover plate 16 is connected to the upper cover plate 26 through a fastener, so that the first diversion component 2 is fixedly connected to the upper cover plate 26. The upper heating component 27 is installed in the groove 12 of the first diversion component 2. The surrounding edge 11 and the partition plate 9 of the first diversion component 2 abut against the inner wall of the upper cover plate 26 to form an air duct 10.

[0065] Specifically, the structure of the lower cover plate 28 is the same as that of the upper cover plate 26. The lower inner cover plate 31 is fixedly installed on the lower cover plate 28 via fasteners. The control unit 30 is located between the lower cover plate 28 and the lower inner cover plate 31. The upper cover plate 26 is hinged to the lower inner cover plate 31. The upper fixing member 21 of the diversion structure is integrally fixedly connected to the first diversion assembly 2, and one end of the upper fixing member 21 of the diversion structure is hinged to the lower inner cover plate 31.

[0066] Specifically, the front-end diversion member 1 of the diversion structure is placed at one end of the lower inner cover plate 31 away from the heating assembly, so that the upper clamping plate 24 and the lower clamping plate 25 are not interfered by the front-end diversion member 1 when opened, thereby enabling a larger opening angle. The larger opening angle provides a more spacious clamping space for the user during use, which helps to more conveniently place the hair between the clamping plates. Setting the front-end diversion member 1 at one end away from the heating assembly can effectively prevent the diversion member area from being affected by high temperature, reducing the potential damage to the hair caused by heat radiation. At the same time, this arrangement also helps to form an obvious separation between the hot zone and the cold air zone, ensuring the independence and efficient operation of each functional area.

[0067] Specifically, a wire passing hole is provided on the front-end diversion member 1 of the diversion structure. The wire of the blower 32 is electrically connected to the control unit 30 via the wire passing hole, and the wire of the blower 32 is in interference fit with the wire passing hole. The design of the wire passing hole provides a fixed wiring channel for the wire of the blower 32, effectively avoiding the random swing of the wire in the internal space, simplifying the installation steps, and at the same time providing more space for the layout of other electronic components inside the device, which helps to achieve modular design; the interference fit not only ensures the firmness of the electrical connection, but also, due to the close fit between the wire and the wire passing hole, can reduce the air leakage caused by pores, maintaining the sealing performance of the overall diversion structure and ensuring the smooth transmission of the air flow along the predetermined path.

[0068] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as the technical content of the present invention is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A flow guide structure, characterized in that: The invention comprises a front-end flow guide member (1) and a flow guide assembly, wherein one end of the front-end flow guide member (1) forms an air inlet (4), and the other end of the front-end flow guide member (1) forms an air outlet. The air inlet (4) and a fan (32) cooperate to convey airflow, and the air outlet is connected to the flow guide assembly. The flow guide assembly comprises a flow divider (6) and a flow guide member (7). One end of the flow guide member (7) is provided with an air inlet (8), and the air inlet (8) is connected to the air inlet (4). The other end of the flow guide member (7) is connected to the flow divider (6). A partition plate (9) for guiding airflow is provided on the flow divider (6). The partition plate (9) cooperates with an external upper clamping plate (24) and / or an external lower clamping plate (25) to form an air duct (10). The air duct (10) is used to connect the air inlet (8) and the air outlet (33) on the clamping plate.

2. A flow guiding structure according to claim 1, characterized in that: The air guide member (7) is provided with a peripheral edge (11) on both sides in the longitudinal direction, and the peripheral edge (11) extends from the air inlet (8) toward the partition plate (9), and the peripheral edge (11) contacts the upper clamping plate (24) and / or the external lower clamping plate (25), and a groove (12) is provided on the side of the clamping plate away from the diversion part (6), and the groove (12) is used to accommodate the external heating component.

3. A flow guiding structure according to claim 1, characterized in that: The flow guide components are provided with two groups, the two groups of flow guide components are respectively a first flow guide component (2) and a second flow guide component (3), and the first flow guide component (2) and the second flow guide component (3) are respectively installed in an external upper clamping plate (24) and an external lower clamping plate (25).

4. A flow guiding structure according to claim 3, characterized in that: The front end air guide (1) is a flexible three-way air guide duct, one end of the flexible three-way air guide duct is an air inlet portion (4), and the other end of the flexible three-way air guide duct is two air outlet portions, the two air outlet portions are respectively a first air outlet portion (14) and a second air outlet portion (15), the first air outlet portion (14) is plug-fitted with the first air guide component (2), and the second air outlet portion (15) is plug-fitted with the second air guide component (3).

5. A flow guiding structure according to claim 4, characterized in that: The rotation range of the included angle between the first air outlet portion (14) and the second air outlet portion (15) is 25°-75°.

6. A flow guiding structure according to claim 3, characterized in that: The first air guide component (2) further comprises an upper inner cover plate (16), the upper inner cover plate (16) being arranged on a side of the air guide member (7) away from the air duct (10), the width of the upper inner cover plate (16) being greater than the width of the air guide member (7), and a wire passage (17) being formed between the upper inner cover plate (16) and the air guide member (7).

7. A flow guiding structure according to claim 6, characterized in that: The upper inner cover plate (16) and the air guide member (7) are an integrally formed structure.

8. A flow guiding structure according to claim 1, characterized in that: The partition plates (9) include a plurality of groups of first partition plates (18) and a plurality of groups of second partition plates (19). The first partition plates (18) and the second partition plates (19) are alternately arranged along the longitudinal direction of the clamping plate. The length of the first partition plates (18) is greater than the length of the second partition plates (19).

9. A flow guiding structure according to claim 4, characterized in that: The air guide structure also includes a connecting component (20), the connecting component (20) includes an upper fixing component (21), a lower fixing component (22) and an elastic component (23), the upper fixing component (21) is provided with a mounting hole, the first air outlet (14) is connected to the upper fixing component (21) by passing through the mounting hole, the upper fixing component (21) is fixedly connected to the upper clamping plate (24) via a fastener, the upper clamping plate (24) is hinged to the external lower clamping plate (25) via the upper fixing component (21), the second air outlet (15) is connected to the external lower clamping plate (25) via the lower fixing component (22), one end of the elastic component (23) abuts against the upper fixing component (21) or the upper clamping plate (24), and the other end of the elastic component (23) abuts against the lower fixing component (22) or the lower clamping plate (25), and continuously applies an opening force to the upper clamping plate (24) and the lower clamping plate (25).

10. A cold air hair straightener with a flow guide structure, characterized in that: The cold air hair straightener comprises the air guide structure as claimed in any one of claims 1 to 9, and further comprises an upper clamping plate (24), a lower clamping plate (25) and an air supply unit, wherein the upper clamping plate (24) is hinged to the lower clamping plate (25), the upper clamping plate (24) comprises an upper cover plate (26) and an upper heating assembly (27) arranged on the upper cover plate (26), the lower clamping plate (25) comprises a lower cover plate (28), a lower heating assembly (29) arranged on the lower cover plate (28), a control unit (30) and a lower inner cover plate (31); the air supply unit comprises a fan (32), the fan (32) generates an air flow which flows through the air inlet portion (4) of the front end air guide member (1) to the air outlet (33) on the upper cover plate (26) and / or the lower cover plate (28).

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