Electric hair dryer

Abstract

The utility model discloses an electric hair dryer which comprises a machine head and a handle, the handle is provided with a first air inlet channel, a first fan is arranged in the first air inlet channel, a second air inlet channel is arranged in the machine head, a second fan is arranged in the second air inlet channel, and a first heating channel and a second heating channel are further arranged in the machine head. The first heating channel surrounds the periphery of the second heating channel, an air guide piece is arranged in the machine head and provided with a first air guide face, the rear end of the first air guide face abuts against the inner wall of the machine head, the first air guide face and the inner wall of the machine head form an annular first air guide channel, the air guide piece is further provided with a second air guide channel, and the first air guide face surrounds the periphery of the second air guide channel. The first air guide channel communicates with the first air inlet channel and the first heating channel, and the second air guide channel communicates with the second air inlet channel and the second heating channel. The utility model provides an electric hair dryer which can reduce the loss of air volume in an air duct and is more uniform and stable in air outlet.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a hair dryer. Background Technology

[0002] In today's rapidly evolving technological world, hair dryers have become an indispensable and convenient tool in our daily lives. Hair dryers combine a heating element with a small fan. When an electric current passes through, the heating element heats up rapidly, while the fan rotates simultaneously, evenly distributing airflow between the hair strands for a quick and effective drying effect. If only the fan operates without heating the heating element, cool air will be blown out. However, a single hair dryer has low drying efficiency and certain functional limitations.

[0003] The prior art CN115462608U discloses "a dual-channel high-speed hair dryer", specifically disclosing a dual-channel high-speed hair dryer, including a hair dryer handle and a hair dryer tube. A first fan is placed inside the hair dryer handle, and a second fan is placed inside the hair dryer tube. The hair dryer tube has a hollow area, a second air inlet, and a second air outlet. The second air inlet and the second air outlet are connected by the hollow area to form a second air channel. The first air channel is located in the hair dryer handle, and the hair dryer tube has a first air outlet. The hair dryer handle has a first air inlet, and the first air inlet and the first air outlet are connected to form a first air channel. When the airflow in the first air channel flows from the hair dryer handle through the hair dryer tube, the hollow area in the hair dryer tube separates the first air channel and the second air channel. This causes part of the airflow to flow directly to the first air outlet, while another part of the airflow flows to the rear end of the hair dryer tube and collides with the rear end face of the hair dryer tube. This not only generates turbulence, resulting in uneven airflow, but also affects the airflow volume and increases the loss of airflow. Utility Model Content

[0004] The purpose of this invention is to provide a hair dryer that solves the problem of uneven airflow and air volume loss caused by turbulence at the rear of the head. By setting an air guide inside the head of the hair dryer, the airflow entering the head through the first air inlet channel in the handle can be guided to the first heating channel and blown out from the first air outlet. This not only reduces the loss of air volume, but also prevents the airflow from flowing to the rear of the head when entering the head, making the airflow more uniform and stable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hair dryer, comprising a head and a handle, the handle having a first air inlet channel, a first fan being disposed within the first air inlet channel, the head having a second air inlet channel, a second fan being disposed within the second air inlet channel, the head also having a first heating channel and a second heating channel, the first heating channel surrounding the outer periphery of the second heating channel, the head having an air guide component, the air guide component having a first air guide surface, the rear end of the first air guide surface abutting against the inner wall of the head and forming an annular first air guide channel with the inner wall of the head, the air guide component also having a second air guide channel, the first air guide surface surrounding the outer periphery of the second air guide channel, the first air guide channel connecting the first air inlet channel and the first heating channel, and the second air guide channel connecting the second air inlet channel and the second heating channel.

[0006] After adopting the above technical solution, the present invention has the following advantages: The first heating channel surrounds the outer periphery of the second heating channel, forming an annular heating channel, which allows the airflow to be fully heated, making the temperature more uniform. The first air guide channel surrounds the outer side of the second air guide channel, forming an annular air guide channel, which guides the airflow from the first air inlet channel into the first heating channel, and the second air guide channel guides the airflow from the second air inlet channel into the second air inlet channel. By setting the air guide component, the airflow entering the machine head can be guided to the heating channel, reducing airflow loss and avoiding ineffective circulation and leakage of airflow inside the machine head. At the same time, it can make the airflow speed when blowing out from the heating channel relatively consistent, making the airflow more uniform, which helps to reduce the noise caused by uneven flow rate and improve the user experience. The rear end of the first air guide surface abuts against the inner wall of the machine head and forms an annular first air guide channel with the inner wall of the machine head. Since the rear end of the first air guide surface is directly connected to the inner wall of the machine head without additional gaps and corners, the flow resistance and vortex generation of the airflow when passing through the first air guide channel are reduced, the flow efficiency of the airflow is improved, and the source of noise generation is reduced.

[0007] Furthermore, the air guide includes an air guide plate, the outer peripheral side of the rear end of the air guide plate is attached to the inner wall of the machine head, the air guide plate rotates around the circumference of the air guide, and the first air guide surface is disposed on the outer periphery of the air guide plate. The first air guide surface is a smooth curved surface that is concave to the center of the air guide.

[0008] By adopting the aforementioned technical solution, the outer periphery of the rear end of the air guide plate is fitted to the inner wall of the head, making the air guide plate and the inner wall of the head almost without gaps. This reduces the possibility of eddies when the airflow passes through, reduces airflow resistance, improves airflow efficiency, and reduces noise. The first air guide surface is set on the outer periphery of the air guide plate and is a smooth curved surface that is concave in the center of the air guide component. The concave smooth curved surface can better guide the airflow to the heating channel, improve the airflow guidance, reduce the resistance between the airflow and the air guide surface, and enable the airflow to flow more smoothly, reduce air volume loss, and improve airflow efficiency.

[0009] Furthermore, the machine head is equipped with a mounting bracket, and the rear end of the air guide plate is provided with a first connecting part, which is fixedly connected to the mounting bracket.

[0010] Using the aforementioned technical solution, the mounting bracket serves to support and fix the air guide plate, ensuring that the air guide plate is firmly positioned inside the machine head and will not shake due to the impact of airflow. Even at high wind speeds, the air guide plate can remain stable and effectively guide the airflow.

[0011] Furthermore, the first connecting part is provided with a first connecting hole, the mounting bracket is provided with a first through hole, and the first screw passes through the first through hole from back to front and connects with the first connecting hole to fix the first connecting part to the mounting bracket.

[0012] Using the aforementioned technical solution, the first connecting part is provided with a first connecting hole, which corresponds to the first through hole on the mounting bracket. The first through hole is for the first screw to pass through, thereby cooperating with the first connecting hole to achieve a fixed connection. The first screw connection has high strength, which can ensure that the air guide plate is stable and does not shake inside the machine head. Even in high-speed airflow or vibration environment, the reliability of the connection can be maintained. The first screw connection is detachable, which makes it easy to remove the air guide plate from the mounting bracket when maintenance, replacement or adjustment is required, which is more convenient.

[0013] Furthermore, the air guide component is also equipped with an air guide bracket to form a second air guide channel, and the second fan is placed inside the air guide bracket.

[0014] By adopting the aforementioned technical solution, the second fan is placed inside the air guide bracket, so that the airflow generated by the second fan can directly enter the second air guide channel, reducing the loss of airflow in the head and improving the flow efficiency and stability of the airflow. In the same amount of time, when the airflow enters the second heating channel from the second air guide channel, more airflow can pass through, thus improving the working efficiency of the hair dryer.

[0015] Furthermore, the air guide bracket includes a mounting part for mounting the second fan and a guide part for guiding air. The guide part is located at the front end of the mounting part and is provided with a vent for connecting the second air inlet channel and the second air guide channel.

[0016] Using the aforementioned technical solution, the installation part is used to install the second fan and ensure the stability of the second fan in the head unit. The guide part is located at the front end of the installation part and is used to guide the airflow of the second air guide channel into the second heating channel. The vent is used to connect the second air inlet channel and the second air guide channel, so that more airflow can enter the second air guide channel and improve the air intake efficiency.

[0017] Furthermore, the machine head is also equipped with a heating component for forming a first heating channel and a second heating channel. The air guide includes an air guide bracket for forming the first air guide channel. The front end of the air guide bracket is provided with an annular second connecting part. The second connecting part is fixedly connected to the rear end of the heating component so that the first air guide channel and the second air guide channel are separated. The air guide surface extends to the second connecting part.

[0018] Using the aforementioned technical solution, the machine head is equipped with a heating component that forms a first heating channel and a second heating channel. The front end of the air guide bracket is connected to the front end of the air guide surface to form a ring-shaped second connecting part. The second connecting part is fixedly connected to the rear end of the heating component, and the first air guide channel and the second air guide channel are separated, so that the airflow state in the two air channels is independent and does not interfere with each other, thus avoiding airflow mixing.

[0019] Furthermore, the heating assembly includes a heating bracket and a connecting plate. The connecting plate is located at the rear end of the heating bracket. The second connecting part is fitted and fixedly connected to the connecting plate. The connecting plate is provided with a first ventilation hole that connects the first air guide channel and the first heating channel, and a second ventilation hole that connects the second air guide channel and the second heating channel.

[0020] By adopting the aforementioned technical solution, the second connecting part is attached and fixed to the connecting plate, which not only achieves a fixed connection between the air guide and the heating component, but also isolates the first air guide channel and the second air guide channel, avoiding the mixing of airflow. The connecting plate is also provided with a first ventilation hole for connecting the first air guide channel and the first heating channel, and a second ventilation hole for connecting the second air guide channel and the second heating channel, so that the airflow from the first air guide channel can smoothly enter the first heating channel, and the airflow from the second air guide channel can smoothly enter the second heating channel.

[0021] Furthermore, the connecting plate is provided with a second connecting hole, the second connecting part is provided with a second through hole, and the second screw passes through the second through hole from back to front and connects with the second connecting hole to fix the second connecting part to the connecting plate. The machine head is provided with a mounting bracket, and the mounting bracket is provided with a clearance through hole for the installation of the second screw.

[0022] Using the aforementioned technical solution, the connecting plate is provided with a second connecting hole, and the second connecting part is provided with a second through hole to allow the second screw to pass through, thereby achieving a fixed connection between the connecting plate and the second connecting part. Disassembly for maintenance is convenient and quick, and installation is simple. The mounting bracket is provided with a clearance through hole, allowing the second screw to pass smoothly without interfering with the mounting bracket, ensuring a smooth installation process.

[0023] Furthermore, the heating bracket is provided with an axial through hole, and an air outlet hood is provided on the heating bracket. The air outlet hood is fitted around the outer periphery of the heating bracket. The end of the air outlet hood is provided with a first air outlet communicating with the first heating channel and a second air outlet communicating with the second heating channel. The end of the air outlet hood is also provided with a rearwardly extending connecting post. The connecting post is inserted into the axial through hole and fixedly connected to the connecting plate to clamp the heating bracket.

[0024] Using the aforementioned technical solution, the heating bracket is equipped with a first air outlet and a second air outlet for communication with the first heating channel and the second heating channel. The end of the air outlet hood is equipped with a rearwardly extending connecting post. The connecting post is inserted into the axial through hole of the heating bracket and fixedly connected to the connecting plate, thus achieving a fixed connection between the air outlet hood and the heating bracket. The cooperation between the connecting post, the axial through hole, and the connecting plate simplifies the installation process, making the connection between the heating bracket, the air outlet hood, and the connecting plate more convenient and quick. At the same time, it also facilitates subsequent maintenance and replacement work, reducing maintenance costs and time costs. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a hair dryer according to the present invention;

[0027] Figure 2 This is a side sectional view of a hair dryer according to the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the air guide component of this utility model;

[0029] Figure 4 This is a schematic diagram of the assembly of the heating component and the air guide component of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the heating bracket of this utility model;

[0031] Figure 6 This is a schematic diagram of the assembly of the air outlet cover and heating component of this utility model;

[0032] Figure 7 This is a schematic diagram of the air outlet of a hair dryer according to the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0034] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0035] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0036] like Figures 1 to 6 The hair dryer shown includes a head 1 and a handle 2. The handle 2 has a first air inlet channel 21, and a first fan 22 is provided in the first air inlet channel 21. The head 1 has a second air inlet channel 11, and a second fan 12 is provided in the second air inlet channel 11. The head 1 also has a first heating channel 13 and a second heating channel 14. The first heating channel 13 surrounds the outer periphery of the second heating channel 14. The head has an air guide 3, which has a first air guide surface 31. The rear end of the first air guide surface 31 abuts against the inner wall of the head 1 and forms an annular first air guide channel 32 with the inner wall of the head 1. The air guide 3 also has a second air guide channel 33, with the first air guide surface 31 surrounding the outer periphery of the second air guide channel 33. The first air guide channel 32 connects the first air inlet channel 21 and the first heating channel 13, and the second air guide channel 33 connects the second air inlet channel 11 and the second heating channel 14.

[0037] Understandably, the first heating channel 13 surrounds the second heating channel 14, forming an annular heating channel, allowing the airflow to be fully heated and resulting in a more uniform temperature. The first air guide channel 32 surrounds the second air guide channel 33, forming an annular air guide channel. The first air guide channel 32 guides the airflow from the first air inlet channel 21 into the first heating channel 13, and the second air guide channel 33 guides the airflow from the second air inlet channel 11 into the second air inlet channel 11. By providing the air guide component 3, all airflow entering the machine head 1 is guided to the heating channel, reducing airflow loss. This avoids ineffective circulation and leakage of airflow inside the head 1, and at the same time, it can make the airflow speed relatively consistent when it blows out from the heating channel, making the wind force more uniform, which helps to reduce the noise caused by uneven flow rate and improve the user experience. The rear end of the first air guide surface 31 abuts against the inner wall of the head 1 and forms an annular first air guide channel 32 with the inner wall of the head 1. Since the rear end of the first air guide surface 31 is directly connected to the inner wall of the head 1 without additional gaps and corners, the flow resistance and vortex generation of the airflow when passing through the first air guide channel 32 are reduced, the flow efficiency of the airflow is improved, and the source of noise generation is reduced.

[0038] Specifically, such as Figure 1 and Figure 2 The air guide 3 includes an air guide plate 36. The outer peripheral side of the rear end of the air guide plate 36 is attached to the inner wall of the head 1. The air guide plate 36 rotates around the circumference of the air guide 3. The first air guide surface 31 is disposed on the outer periphery of the air guide plate 36. The first air guide surface 31 is a smooth curved surface that is concave to the center of the air guide 3.

[0039] The outer periphery of the rear end of the air guide plate 36 is in close contact with the inner wall of the head 1, so that there is almost no gap between the air guide plate 36 and the inner wall of the head 1. This reduces the possibility of turbulence when the airflow passes through, reduces airflow resistance, improves airflow efficiency, and reduces noise. The first air guide surface 31 is set on the outer periphery of the air guide plate 36 and is a smooth curved surface that is concave in the center of the air guide component 3. The concave smooth curved surface can better guide the airflow to the heating channel, improve the airflow guidance, reduce the resistance between the airflow and the first air guide surface 31, so that the airflow can flow more smoothly, reduce air volume loss, and improve airflow efficiency.

[0040] The air guide 3 is also provided with an air guide bracket 37 forming a second air guide channel 33, and the second fan 12 is placed inside the air guide bracket 37.

[0041] The second fan 12 is placed inside the air guide bracket 37, so that the airflow generated by the second fan 12 can directly enter the second air guide channel 33, reducing the loss of airflow in the head 1, improving the flow efficiency and stability of airflow. In the same amount of time, when the airflow enters the first heating channel 13 from the second air guide channel 33, more airflow can pass through, improving the working efficiency of the hair dryer.

[0042] The air guide bracket 37 includes a mounting part 371 for mounting the second fan 12 and a guide part 372 for guiding airflow. The guide part 372 is located at the front end of the mounting part 371 (refer to front-back direction). Figure 1 As shown (left is the rear, right is the front), the guide part 372 is provided with a vent 3721 for connecting the second air inlet channel 11 and the second air guide channel 33.

[0043] The mounting part 371 is used to install the second fan 12 and ensure the stability of the second fan 12 in the head 1. The guide part 372 is located at the front end of the mounting part 371 and is used to guide the airflow of the second air guide channel 33 into the second heating channel 14. The vent 3721 is used to connect the second air inlet channel 11 and the first air guide channel 32, so that more airflow can enter the second air guide channel 33 and improve the air intake efficiency.

[0044] Preferably, the rear end of the mounting portion 371 is provided with a limiting portion 3711 to prevent the second fan 12 from slipping out of the mounting portion 371, and a first opening 3712 for heat dissipation of the second fan 12, and the outer periphery of the mounting portion 371 is provided as an annular shape.

[0045] Preferably, the guide portion 372 extends from the mounting portion 371 from back to front and from inside to outside and is connected to the front end of the air guide plate 36.

[0046] Optionally, in this embodiment, such as 1 to Figure 3 As shown, the air guide plate 36 and the air guide bracket 37 are integrated. However, in order to facilitate the installation of the second fan 12, the air guide 3 is set as a first part 34 and a second part 35 along the axial direction. The first part 34 and the second part 35 are symmetrically arranged. After the second fan 12 is installed, the first part 34 and the second part 35 are assembled by means of screws, snap-fit ​​or glue.

[0047] Optionally, the air guide component 3 may be made of high-temperature resistant and insulating hard plastic material, such as PI, PPS, etc.

[0048] The head unit 1 is equipped with a mounting bracket 4, and the rear end of the air guide plate 36 is equipped with a first connecting part, which is fixedly connected to the mounting bracket 4.

[0049] The mounting bracket 4 serves to support and fix the air guide plate 36, so that the air guide plate 36 can be firmly positioned inside the head 1 and will not shake due to the impact of airflow. Even at high wind speeds, the air guide plate 36 can remain stable and effectively guide the airflow.

[0050] Optionally, the first connecting part is provided with a first connecting hole 361, the mounting bracket 4 is provided with a first through hole 41, and the first screw passes through the first through hole 41 from back to front and connects with the first connecting hole 361 to fix the first connecting part to the mounting bracket 4.

[0051] The first connecting part is provided with a first connecting hole 361, which corresponds to the first through hole 41 on the mounting bracket 4. The first through hole 41 is for the first screw to pass through, so as to cooperate with the first connecting hole 361 to achieve a fixed connection. The first screw connection has high strength and can ensure that the air guide plate 36 is stable and does not shake inside the head 1. Even in high-speed airflow or vibration environment, the reliability of the connection can be maintained. The first screw connection is detachable, so that when it is necessary to repair, replace or adjust the air guide plate 36, it can be easily removed from the mounting bracket 4, which is more convenient.

[0052] Preferably, since the air guide plate 36 is attached to the inner wall of the machine head 1, in order to prevent the air guide plate 36 from rotating relative to the inner wall of the machine head 1 during use, the rear end of the air guide plate 36 is also provided with a foolproof part 362 that cooperates with the mounting bracket 4 to fix the air guide plate 36 relative to the machine head 1 in a designated position.

[0053] In one embodiment, such as Figures 1 to 4 As shown, the head unit 1 is also provided with a heating component 5 for forming a first heating channel 13 and a second heating channel 14. The air guide 3 includes an air guide bracket 37 for forming a second air guide channel 33. The front end of the air guide bracket 37 is provided with an annular second connecting part 373. The second connecting part 373 is fixedly connected to the rear end of the heating component 5 so that the first air guide channel 32 and the second air guide channel 33 are separated. The first air guide surface 31 extends to the second connecting part 373.

[0054] The head unit 1 is equipped with a heating component 5 that forms a first heating channel 13 and a second heating channel 14. The front end of the air guide bracket 37 is connected to the front end of the air guide plate 36 to form a ring-shaped second connecting part 373. The second connecting part 373 is fixedly connected to the rear end of the heating component 5 and isolates the first air guide channel 32 and the second air guide channel 33, so that the airflow state in the first air guide channel 32 and the second air guide channel 33 is independent and does not interfere with each other, thus avoiding airflow mixing.

[0055] The heating component 5 includes a heating bracket 51 and a connecting plate 52. The connecting plate 52 is located at the rear end of the heating bracket 51. The second connecting part 373 is attached and fixedly connected to the connecting plate 52. The connecting plate 52 is provided with a first ventilation hole 521 that connects the first air guide channel 32 and the first heating channel 13 and a second ventilation hole 522 that connects the second air guide channel 33 and the second heating channel 14.

[0056] The second connecting part 373 is attached and fixed to the connecting plate 52, which not only achieves a fixed connection between the air guide 3 and the heating component 5, but also isolates the first air guide channel 32 and the second air guide channel 33 to avoid airflow mixing. The connecting plate 52 is also provided with a first ventilation hole 521 for connecting the first air guide channel 32 and the first heating channel 13 and a second ventilation hole 522 for connecting the second air guide channel 33 and the second heating channel 14, so that the airflow from the first air guide channel 32 can smoothly enter the first heating channel 13 and the airflow from the second air guide channel 33 can smoothly enter the second heating channel 14.

[0057] The connecting plate 52 is provided with a second connecting hole 523, and the second connecting part 373 is provided with a second through hole 3731. The second screw passes through the second through hole 3731 from back to front and connects with the second connecting hole 523 to fix the second connecting part 373 to the connecting plate 52. The machine head 1 is provided with a mounting bracket 4, and the mounting bracket 4 is provided with a clearance through hole for the installation of the second screw.

[0058] The connecting plate 52 is provided with a second connecting hole 523, and the second connecting part 373 is provided with a second through hole 3731 so that the second screw can pass through to achieve a fixed connection between the connecting plate 52 and the second connecting part 373. When maintenance is required, disassembly is convenient and quick, and installation is simple. The mounting bracket 4 is provided with an avoidance through hole so that the second screw can pass through smoothly without interfering with the mounting bracket 4, ensuring the smooth progress of the entire installation process.

[0059] Specifically, such as Figure 5 As shown, the heating bracket 51 includes an outer ring body 511, a middle ring body 512 and an inner ring body 513. The outer ring body 511 is located on the outer periphery of the middle ring body 512, and a first heating channel 13 is formed between the outer ring body 511 and the middle ring body 512. The inner ring body 513 is located on the inner side of the middle ring body 512, and a second annular heating channel 14 is formed between the middle ring body 512 and the inner ring body 513.

[0060] A plurality of first stiffeners 514 are connected between the outer ring body 511 and the middle ring body 512. The first stiffeners 514 divide the first heating channel 13 into a plurality of first sub-channels. A first heating wire 516 is provided on the first stiffeners 514. A plurality of second stiffeners 515 are connected between the middle ring body 512 and the inner ring body 513. The second stiffeners 515 divide the second heating channel 14 into a plurality of second sub-channels. A second heating wire 517 is provided on the second stiffeners 515. The included angle of the first stiffeners 514 in the circumferential direction is smaller than the included angle of the second stiffeners 515 in the circumferential direction.

[0061] In this embodiment, the outer ring 511 and the middle ring 512 are separated by a mica sheet. The mica sheet has excellent properties such as high temperature resistance, insulation and heat insulation, which can effectively isolate the heat generated by the heating wire on the first stiffener 514 and the heating wire on the second stiffener 515, so as to prevent heat accumulation, damage to the heating element or excessive temperature.

[0062] Preferably, a negative ion generator is provided inside the inner ring 513.

[0063] The inner ring 513 is located at the center of the heating bracket 51. When the airflow is blown out, it carries negative ions along with it, ensuring the uniform distribution of negative ions in the blown air. Because the inner ring 513 is ring-shaped, the negative ions diffuse along the ring path after being generated, reducing the phenomenon of excessively high or low local concentrations. Negative ions can neutralize the positive charge on the hair, reduce static electricity, prevent hair from becoming frizzy and difficult to comb due to static electricity, and make the hair smoother. They can also actively combine with harmful substances such as dust and bacteria in the air, causing them to settle or lose their activity. During the use of the hair dryer, negative ions can be continuously released into the surrounding environment, improving scalp activity, promoting scalp metabolism, reducing hair loss, and promoting healthy hair growth.

[0064] In one embodiment, such as Figure 6 As shown, the heating bracket 51 is provided with an air outlet 6. The heating bracket 51 is provided with an axial through hole 518. The air outlet 6 is sleeved on the outer periphery of the heating bracket 51. The end 61 of the air outlet 6 is provided with a first air outlet 63 communicating with the first heating channel 13 and a second air outlet 64 communicating with the second heating channel 14. The end 61 of the air outlet 6 is also provided with a rearwardly extending connecting post 62. The connecting post 62 is inserted into the axial through hole 518 and fixedly connected to the connecting plate 52 and clamps the heating bracket 51.

[0065] The air outlet hood 6 is provided with a first air outlet 63 and a second air outlet 64 for communicating with the first heating channel 13 and the second heating channel 14. The end 61 of the air outlet hood 6 is provided with a rearwardly extending connecting post 62. The connecting post 62 is inserted into the axial through hole 518 of the heating bracket 51 and is fixedly connected to the connecting plate 52, thus achieving a fixed connection between the air outlet hood 6 and the heating bracket 51. The cooperation between the connecting post 62, the axial through hole 518, and the connecting plate 52 simplifies the installation process, making the connection between the heating bracket 51, the air outlet hood 6, and the connecting plate 52 more convenient and quick. At the same time, it also facilitates subsequent maintenance and replacement work, reducing maintenance costs and time costs.

[0066] Specifically, the first air outlet 63 surrounds the outer periphery of the second air outlet 64, the first air outlet 63 is connected to the first heating channel 13 to form an annular first air outlet channel, and the second air outlet 64 is connected to the second heating channel 14 to form a second air outlet channel.

[0067] The air outlet cover 6 and the connecting plate 52 are snapped together to fix the heating bracket 51 inside the machine head 1.

[0068] Both the first air outlet 63 and the second air outlet 64 are intermittently distributed in the circumferential direction. The first air outlet 63 and the second air outlet 64 are respectively aligned and connected to the first sub-channel and the second sub-channel. A first support rib 65 is provided between two adjacent first air outlets 63 in the circumferential direction, and a second support rib 66 is provided between two adjacent second air outlets 64 in the circumferential direction. The first support rib 65 abuts against the first rib plate 514, and the second support rib 66 abuts against the second rib plate 515.

[0069] The rear end face of the end 61 is provided with a rearwardly protruding annular rib 67 between the edges of the first air outlet 63 and the second air outlet 64. The annular rib 67 abuts against the heating bracket 51 to separate the first air outlet channel and the second air outlet channel.

[0070] An annular rib 67 protruding backward is provided on the rear end face of the end 61 between the edges of the first air outlet 63 and the second air outlet 64. The annular rib 67 separates the first air outlet channel and the second air outlet channel, preventing mutual interference and mixing of airflow between the two channels. The annular rib 67 abuts against the heating bracket 51, providing additional support for the air outlet cover 6, enhancing the connection strength between the air outlet cover 6 and the heating bracket 51, and improving the stability of the entire blower structure.

[0071] Specifically, the rearward-protruding annular rib 67 gradually tapers and abuts against the heating bracket 51, causing the airflow to be compressed when it flows through the air outlet, thereby increasing the wind speed and wind force. Under the same power, the gradually tapering air outlet can generate more concentrated wind force, which helps to dry hair faster.

[0072] Specifically, such as Figure 7 As shown, the first fan 22 and the second fan 12 are connected in parallel inside the hair dryer, independently controlling the airflow from the first air inlet channel 21 and the second air inlet channel 11. This allows the airflow to pass through the first heating channel 13 and the second heating channel 14, where the first and second heating elements are located, respectively. Users can adjust the specific operating temperature and airflow rate using the buttons on the handle 2 according to their needs. For example, the first fan 22 can be used alone, the second fan 12 can be used alone, or both fans can work together; alternatively, the first control circuit can control the first heating element to heat, causing the first heating channel 13 to blow hot air, while the second control circuit can control the second heating element to not heat, causing the second heating channel 14 to blow cold air, and so on. These various operating modes will not be elaborated upon further here.

[0073] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A hair dryer, comprising a head and a handle, the handle having a first air inlet channel and a first fan disposed therein, the head having a second air inlet channel and a second fan disposed therein, characterized in that... The machine head is also provided with a first heating channel and a second heating channel. The first heating channel surrounds the outer periphery of the second heating channel. The machine head is provided with an air guide component. The air guide component has a first air guide surface. The rear end of the first air guide surface abuts against the inner wall of the machine head and forms an annular first air guide channel with the inner wall of the machine head. The air guide component is also provided with a second air guide channel. The first air guide surface surrounds the outer periphery of the second air guide channel. The first air guide channel connects the first air inlet channel and the first heating channel. The second air guide channel connects the second air inlet channel and the second heating channel.

2. The hair dryer according to claim 1, characterized in that, The air guide includes an air guide plate. The outer peripheral side of the rear end of the air guide plate is attached to the inner wall of the machine head. The air guide plate rotates around the circumference of the air guide. The first air guide surface is set on the outer periphery of the air guide plate. The first air guide surface is a smooth curved surface that is concave to the center of the air guide.

3. A hair dryer according to claim 2, characterized in that, The machine head is equipped with a mounting bracket, and the rear end of the air guide plate is equipped with a first connecting part, which is fixedly connected to the mounting bracket.

4. A hair dryer according to claim 3, characterized in that, The first connecting part is provided with a first connecting hole, and the mounting bracket is provided with a first through hole. The first screw passes through the first through hole from back to front and connects with the first connecting hole to fix the first connecting part to the mounting bracket.

5. A hair dryer according to claim 1, characterized in that, The air guide component is also equipped with an air guide bracket that forms a second air guide channel, and the second fan is placed inside the air guide bracket.

6. A hair dryer according to claim 5, characterized in that, The air guide bracket includes a mounting part for mounting the second fan and a guide part for guiding air. The guide part is located at the front end of the mounting part and has a vent for connecting the second air inlet channel and the second air guide channel.

7. A hair dryer according to claim 1, characterized in that, The head unit is also equipped with a heating component for forming a first heating channel and a second heating channel. The air guide includes an air guide bracket for forming a second air guide channel. The front end of the air guide bracket is provided with an annular second connecting part. The second connecting part is fixedly connected to the rear end of the heating component so that the first air guide channel and the second air guide channel are separated. The first air guide surface extends to the second connecting part.

8. A hair dryer according to claim 7, characterized in that, The heating assembly includes a heating bracket and a connecting plate. The connecting plate is located at the rear end of the heating bracket. The second connecting part is fitted and fixedly connected to the connecting plate. The connecting plate is provided with a first ventilation hole that connects the first air guide channel and the first heating channel, and a second ventilation hole that connects the second air guide channel and the second heating channel.

9. A hair dryer according to claim 8, characterized in that, The connecting plate is provided with a second connecting hole, and the second connecting part is provided with a second through hole. The second screw passes through the second through hole from back to front and connects with the second connecting hole to fix the second connecting part to the connecting plate. The machine head is provided with a mounting bracket, and the mounting bracket is provided with a clearance through hole for the installation of the second screw.

10. A hair dryer according to claim 8, characterized in that, The heating bracket has an axial through hole and an air outlet hood. The air outlet hood is fitted around the outer periphery of the heating bracket. The end of the air outlet hood has a first air outlet communicating with the first heating channel and a second air outlet communicating with the second heating channel. The end of the air outlet hood also has a rearwardly extending connecting post. The connecting post is inserted into the axial through hole and fixedly connected to the connecting plate to clamp the heating bracket.

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