Hair dryer

By designing isolated and distributed first and second air ducts in the hair dryer, the water ion generator is in the first air duct and the heating component is in the second air duct, which solves the problem of rapid decay of water ion concentration and improves the reliability and effect of water ion blowing.

CN223310808UActive Publication Date: 2025-09-09BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202421810597.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2025-09-09
Estimated Expiration
2034-07-29

AI Technical Summary

Technical Problem

In existing water ion hair dryers, the water ion generating device is located in the hot air channel, which causes the water ion concentration to decay too quickly and the reliability of blowing water ions is low.

Method used

A hair dryer is designed. The blower body has a first air duct and a second air duct that are isolated and distributed. A water ion generator is fixed in the first air duct, and a heating component is fixed in the second air duct. A higher temperature air flow is blown out through the second air duct, while the air flow output from the first air duct is at a lower temperature, ensuring that water ions are transmitted in the low-temperature air flow and reducing the concentration decay rate.

Benefits of technology

The blowing distance and concentration of water ions are improved, the reliability of the hair dryer is enhanced, and the water ions penetrate deeper into the hair and scalp to achieve the effect of moisturizing and protecting the hair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hair drier, and belongs to the technical field of household appliances. The blower comprises a blower body, a water ion generating device and a heating assembly. Due to the fact that the first air channel and the second air channel of the draught fan body are distributed in an isolated mode, airflow blown out by the draught fan body through the second air channel does not interfere with airflow output by the first air channel. Under the condition, even if the fan body can blow out the high-temperature airflow through the second air duct through the heating assembly fixed in the second air duct, it can be guaranteed that the temperature of the airflow output through the first air duct is low. Therefore, after the water ions are jetted by the water ion generating device fixed in the first air duct, the water ions can be blown out by the low-temperature airflow in the first air duct, so that the concentration attenuation speed of the water ions blown out by the blower is effectively reduced, the blowing distance of the water ions is long, and the concentration of the water ions is high; therefore, the reliability of blowing water ions by the blower can be effectively improved.
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Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a hair dryer. Background Art

[0002] The water ion hair dryer uses electric ion technology to convert water molecules into water ions, which are then sprayed out through the hair dryer, allowing the water ions to penetrate deeper into the hair and scalp, thereby moisturizing and protecting the hair and reducing static electricity.

[0003] In the related art, the water ion generating device in the water ion hair dryer is located in the hot air channel of the hair dryer. The water ions generated by the water ion generating device are blown by the hot air in the hair dryer, which causes the concentration of the water ions to decay too quickly, thereby resulting in low reliability of the hair dryer in blowing water ions. Utility Model Content

[0004] The embodiment of the present application provides a hair dryer that can solve the problem of low reliability of water ion blowing in the prior art hair dryers. The technical solution is as follows:

[0005] Provided is a hair dryer comprising: a blower body, a water ion generating device and a heating assembly;

[0006] The fan body has a first air duct and a second air duct that are distributed separately, the first air duct extends along the axial direction of the fan body, and the second air duct is distributed around the periphery of the first air duct;

[0007] The water ion generating device is fixed in the first air duct;

[0008] The heating component is fixed in the second air duct.

[0009] Optionally, the two end faces distributed in the axial direction of the fan body are respectively: a first end face and a second end face; the first air duct can pass through the first end face and the second end face, and the first end face has a first air outlet connected to the first air duct, and the second end face has a first air inlet connected to the first air duct; the first end face also has a second air outlet connected to the second air duct.

[0010] Optionally, the water ion generating device has a water ion outlet, and the water ion outlet is distributed on a side of the water ion generating device facing the first air outlet.

[0011] Optionally, the water ion generating device is provided with a side of the water ion outlet flush with the first end surface;

[0012] Alternatively, the first end surface protrudes outward relative to a side of the water ion generating device where the water ion outlet is provided.

[0013] Optionally, the fan body includes: an inner cylinder and an outer cylinder;

[0014] The outer tube is sleeved on the outside of the inner tube and fixedly connected to the inner tube. The inner tube is used to enclose the first air duct, and the second air duct is provided between the inner tube and the outer tube.

[0015] Wherein, the water ion generating device is fixedly connected to a side of the inner cylinder facing away from the outer cylinder.

[0016] Optionally, the water ion generating device includes: a heat-insulating cover, and a water ion generator fixedly connected to the heat-insulating cover;

[0017] The heat-insulating cover is fixedly connected to a side of the inner cylinder facing away from the outer cylinder, and the heat-insulating cover has a water ion outlet.

[0018] Optionally, the heat-insulating cover comprises: a cover body and a windshield;

[0019] The housing body is annular, and the water ion generator is fixed in the area enclosed by the housing body;

[0020] The windshield is fixedly connected to one side of the housing body, and the windshield has the water ion outlet, and the water ion outlet is arranged opposite to the water ion generator;

[0021] Wherein, a side of the cover body facing away from the wind shield is provided with a ventilation opening.

[0022] Optionally, the heat-insulating cover further comprises: a connecting portion fixedly connected to the outer side wall of the cover body, wherein one end of the connecting portion facing away from the cover body is fixedly connected to the inner cylinder.

[0023] Optionally, the hair dryer also includes: a grip; one end of the grip is connected to the blower body, and a third air duct is provided inside the grip, the third air duct is connected to the second air duct, and the surface of the grip has a second air inlet connected to the third air duct.

[0024] Optionally, the diameter of the first air duct is greater than or equal to 20 mm, and the length of the first air duct is greater than or equal to 90 mm.

[0025] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0026] The hair dryer includes: a fan body, a water ion generating device and a heating component. Since the first air duct and the second air duct of the fan body are distributed in isolation, the airflow blown out by the fan body through the second air duct will not interfere with the airflow output through the first air duct. In this case, even if the fan body is able to blow out a higher temperature airflow through the second air duct through the heating component fixed in the second air duct, the airflow output through the first air duct can be ensured to have a lower temperature. To this end, after the water ion generating device fixed in the first air duct emits water ions, these water ions can be blown out by the lower temperature airflow in the first air duct, effectively reducing the attenuation rate of the water ion concentration blown out by the hair dryer, so that the blowing distance of the water ions is long and the concentration is high, thereby effectively improving the reliability of the hair dryer in blowing water ions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a structural diagram of a hair dryer provided in an embodiment of the present application;

[0029] Figure 2 This Figure 1 A cross-sectional view of the hair dryer shown;

[0030] Figure 3 is a cross-sectional view of another hair dryer provided in an embodiment of the present application;

[0031] Figure 4 is a cross-sectional view of another hair dryer provided in an embodiment of the present application;

[0032] Figure 5 Schematic diagram of the structure of another hair dryer adopted in the embodiment of the present application;

[0033] Figure 6 yes Figure 5 A cross-sectional view of the blowing is shown. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0035] Ionizing hair dryers utilize a high-voltage electric field to decompose and ionize water, breaking it down into positively charged hydrogen ions and negatively charged oxygen ions. This process simultaneously generates large amounts of water vapor and tiny water droplets. These vapors and droplets contain charged hydrogen and oxygen ions, which are known as water ions. The fan in the ionizing hair dryer blows this ionized air onto the hair, moisturizing and conditioning it.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 This is a structural diagram of a hair dryer provided in an embodiment of the present application. Figure 2 This Figure 1 The hair dryer 000 may include a blower body 100 , a water ion generator 200 and a heating assembly 300 .

[0037] The fan body 100 in the blower 000 has a first air duct D1 and a second air duct D2 that are separated and distributed. Here, the first air duct D1 of the fan body 100 can extend along the axial direction of the fan body 100, and the second air duct D2 of the fan body 100 can be distributed around the periphery of the first air duct D1. In other words, the second air duct D2 of the fan body 100 can be an annular air duct, and the first air duct D1 of the fan body 100 can be located in the area enclosed by the second air duct D2.

[0038] It should be noted that the fan body 100 can blow air through the second air duct D2. Since the second air duct D2 of the fan body 100 is an annular air duct, the airflow blown out through the second air duct D2 is also annular and has a certain speed. According to Bernoulli's principle, in the airflow, the pressure is low at the location where the flow rate is fast, and the pressure is high at the location where the flow rate is slow. That is, in the process of the fan body 100 outputting airflow through the second air duct D2, the annular airflow output through the second air duct D2 can make the pressure at the outlet position of the first air duct D1 close to the second air duct D2 smaller, while the pressure at the outlet position of the first air duct D1 away from the second air duct D2 is larger. For this reason, under the action of the pressure difference, the outside air will be pressed into the first air duct D1 from the side of the first air duct D1 away from the outlet position of the second air duct D2, and flow along the side close to the outlet position of the second air duct D2. In this way, when the fan body 100 blows air through the second air duct D2 , air flow is also output from the first air duct D1 , thereby effectively increasing the air output of the fan body 100 .

[0039] The water ion generator 200 in the hair dryer 000 can be fixed in the first air duct D1 of the blower body 100, and the water ion generator 200 can emit water ions. After the water ion generator 200 is fixed in the first air duct D1, the water ions emitted by the water ion generator 200 can be blown out by the airflow output through the first air duct D1.

[0040] The heating component 300 in the hair dryer 000 can be fixed in the second air duct D2 of the blower body 100, and the heating component 300 can be used to heat the air flow blowing through the second air duct D2, so that the second air duct D2 can blow out air flow with a higher temperature.

[0041] In the embodiment of the present application, since the first air duct D1 and the second air duct D2 of the blower body 100 are isolated and distributed, the airflow blown out by the blower body 100 through the second air duct D2 will not interfere with the airflow output through the first air duct D1. In this case, even if the heating component 300 fixed in the second air duct D2 allows the blower body 100 to blow out a higher temperature airflow through the second air duct D2, it can also ensure that the airflow output through the first air duct D1 has a lower temperature. To this end, after the water ion generating device 200 fixed in the first air duct D1 emits water ions, these water ions can be blown out by the lower temperature airflow in the first air duct D1, effectively reducing the attenuation rate of the water ion concentration blown out by the hair dryer 000, making the water ion blowing distance long and the concentration high, thereby effectively improving the reliability of the hair dryer 000 in blowing water ions.

[0042] In summary, an embodiment of the present application provides a hair dryer, comprising: a blower body, a water ion generating device, and a heating assembly. Since the first air duct and the second air duct of the blower body are isolated and distributed, the airflow blown out by the blower body through the second air duct will not interfere with the airflow output through the first air duct. In this case, even if the blower body is able to blow out an airflow with a higher temperature through the second air duct by means of a heating assembly fixed in the second air duct, the temperature of the airflow output through the first air duct can be ensured to be lower. To this end, after the water ion generating device fixed in the first air duct emits water ions, these water ions can be blown out by the airflow with a lower temperature in the first air duct, effectively reducing the attenuation rate of the water ion concentration blown out by the hair dryer, so that the blowing distance of the water ions is long and the concentration is high, thereby effectively improving the reliability of the hair dryer in blowing water ions.

[0043] In the embodiments of this application, Figure 3 As shown, Figure 3This is a cross-sectional view of another hair dryer provided in an embodiment of the present application. The two axially distributed end surfaces of the blower body 100 in the hair dryer 000 are: a first end surface S1 and a second end surface S2. A first air duct D1 of the blower body 100 can penetrate the first end surface S1 and the second end surface S2.

[0044] Here, the first end surface S1 of the fan body 100 may have a first air outlet K1 communicating with the first air duct D1, and the second end surface S2 of the fan body 100 may have a first air inlet K2 communicating with the first air duct D1. In other words, the first air outlet K1 and the first air inlet K2 of the first air duct D1 may be arranged relative to each other in the axial direction of the fan body 100.

[0045] In this application, the first end surface S1 of the fan body 100 may further have a second air outlet K3 communicating with the second air duct D2 . That is, the first air outlet K1 of the first air duct D1 and the second air outlet K3 of the second air duct D2 may be located on the same side of the fan body 100 .

[0046] In this case, when the fan body 100 blows air through the second air duct D2, the second air duct D2 can blow air outward through the second air outlet K3, causing the pressure at the first air outlet K1 located on the same side of the first air duct D1 as the second air outlet K3 to be lower, while the pressure at the first air inlet K2 located opposite the first air outlet K1 in the first air duct D1 to be higher. Therefore, under the action of the pressure difference, an airflow is formed in the first air duct D1, entering through the first air inlet K2 and blowing out through the first air outlet K1.

[0047] Optional, such as Figure 3 As shown, the hair dryer 000 may further include a grip 400. One end of the grip 400 in the hair dryer 000 may be connected to the blower body 100, making it easier for the user to hold the hair dryer 000. The grip 400 may have a third air duct D3 connected to the second air duct D2. The grip 400 may have a second air inlet K4 connected to the third air duct D3 on its surface. For example, the second air inlet K4 may be provided on the end of the grip 400 facing away from the blower body 100.

[0048] In the present application, the hair dryer 000 may further include a blower assembly 500. The blower assembly 500 may be fixed within the third air duct D3 of the grip 400. During operation of the blower assembly 500, air from the external environment may be drawn into the third air duct D3 through the second air inlet K4. The airflow entering the third air duct D3 may flow toward the second air duct D2, be heated by the heating assembly 300 within the second air duct D2, and then be blown out through the first air outlet K1 of the second air duct D2.

[0049] Optionally, the fan assembly 500 may be a turbo fan with a large air output and the ability to accelerate the airflow, thereby ensuring a faster airflow velocity through the first air outlet K1 of the second air duct D2 and a larger flow rate of the airflow output through the first air duct D1.

[0050] In the embodiments of this application, Figure 3 As shown, the water ion generating device 200 may have a water ion outlet O, and the water ion outlet O may be distributed on a side of the water ion generating device 200 facing the first air outlet K1. Here, the water ion generating device 200 may emit water ions through the water ion outlet O.

[0051] In this case, after the water ions generated by the water ion generator 200 are emitted from the water ion outlet O, the water ions can be better blown along the direction of the first air outlet K1 of the first air duct D1 under the blowing effect of the airflow output from the first air duct D1. Since during the use of the hair dryer 000, the second air outlet K3 of the second air duct D2 in the blower body 100 will face the user's hair, and the second air outlet K3 of the second air duct D2 and the first air outlet K1 of the first air duct D1 are located on the same side of the blower body 100. Therefore, when the water ion outlet O is located on the side of the water ion generator 200 facing the first air outlet K1, the water ions emitted through the water ion outlet O can be better blown toward the user's hair under the blowing effect of the airflow output from the first air duct D1, thereby further increasing the concentration of water ions reaching the user's hair, thereby achieving a better effect of moisturizing and protecting the user's hair.

[0052] In the present application, there are various distribution positions of the water ion outlet K of the water ion generating device 200. The present application embodiment will be described using the following two cases as examples:

[0053] The first case, such as Figure 3 As shown, the side of the water ion generator 200 where the water ion outlet O is provided can be flush with the first end surface S1 of the fan body 100. In other words, the side of the water ion generator 200 where the water ion outlet O is provided can be flush with the side of the fan body 100 where the first air outlet K1 and the second air outlet K3 are provided.

[0054] The second case, such as Figure 4 As shown, Figure 4 This is a cross-sectional view of another hair dryer provided in an embodiment of the present application. The first end surface S1 of the blower body 100 may protrude outward relative to the side of the water ion generator 200 where the water ion outlet O is located. In other words, the side of the blower body 100 where the first air outlet K1 and the second air outlet K3 are located may protrude outward relative to the side of the water ion generator 200 where the water ion outlet O is located.

[0055] In this way, it is ensured that the side of the water ion generator 200 where the water ion outlet O is provided does not protrude from the side of the blower body 100 where the first air outlet K1 and the second air outlet K3 are provided. In this case, the water ion outlet O of the water ion generator 200 can be completely located in the first air duct D1, so that the water ions emitted from the water ion outlet O can also be completely located in the first air duct D1, thereby effectively reducing the probability of water ions escaping to the outside, thereby further improving the concentration of water ions blown out by the hair dryer 000.

[0056] In the embodiments of this application, Figure 5 and Figure 6 As shown, Figure 5 This is a structural diagram of another hair dryer according to an embodiment of the present application. Figure 6 yes Figure 5 The blower body 100 in the hair dryer 000 may include an inner cylinder 101 and an outer cylinder 102. The outer cylinder 102 in the blower body 100 may be sleeved on the outside of the inner cylinder 101 and fixedly connected to the inner cylinder 101.

[0057] In the present application, the inner cylinder 101 in the fan body 100 may enclose a first air duct D1, and a second air duct D2 may be defined between the inner cylinder 101 and the outer cylinder 102 in the fan body 100. The space enclosed between the inner cylinder 101 and the outer cylinder 102 may be an annular space, and thus, the second air duct D2 may be an annular air duct surrounding the first air duct D1.

[0058] The water ion generating device 200 in the hair dryer 000 can be fixedly connected to the side of the inner cylinder 101 facing away from the outer cylinder 102 .

[0059] In this case, the second air outlet K3 of the second air duct D2 can also be annular and smaller in size. After the airflow gathers in the second air duct D2, it is blown out from the second air outlet K3, forming an annular high-speed airflow. This can create a negative pressure in the first air duct D1, causing the air in the surrounding space to be sucked into the first air duct D1 through the first air inlet K2, thereby increasing the air output of the hair dryer 000.

[0060] For example, the drawings in this application illustrate a fan body 100 comprising an outer cylinder 102 and an inner cylinder 101, with the outer cylinder 102 being sleeved outside the inner cylinder 101. In other possible embodiments, the fan body 100 may also be an integrally formed hollow housing. This embodiment of the application is not limited to this.

[0061] In the examples of this application, refer to Figure 5 and Figure 6The water ion generating device 200 in the hair dryer 000 may include: a heat-insulating cover 201 , and a water ion generator 202 fixedly connected to the heat-insulating cover 201 .

[0062] The heat-insulating cover 201 is fixedly connected to the side of the inner cylinder 101 facing away from the outer cylinder 102 , and the heat-insulating cover 201 has a water ion outlet O.

[0063] In this case, on the one hand, the heat-insulating cover 201 can block the heat radiation generated by the heating unit 300 fixed within the second air duct D2, thereby reducing the evaporation effect of the heating unit 300 on the water ions generated by the water ionizer 202. On the other hand, the heat-insulating cover 201 can also protect the water ionizer 202, preventing external forces from damaging the water ionizer 202. Furthermore, the heat-insulating cover 201 can also serve as a mounting component for the water ionizer 202, allowing the water ionizer 202 to be fixedly connected to the side of the inner cylinder 101 facing away from the outer cylinder 102 through the heat-insulating cover 201.

[0064] In the examples of this application, refer to Figure 5 and Figure 6 The heat-insulating cover 201 in the water ion generating device 200 may include: a cover body 2011 and a wind shield 2012 .

[0065] The housing body 2011 may be annular, and the water ion generator 202 may be fixed within the area enclosed by the housing body 2011. The windshield 2012 may be fixedly connected to one side of the housing body 2011 and may have a water ion outlet O, which may be arranged opposite to the water ion generator 202.

[0066] For example, the water ion generator 202 may have an ion generating unit on a side facing the first air outlet K1 of the blower body 100. The windshield 2012 may be fixedly connected to the side of the housing body 2011 facing the first air outlet K1, and the water ion outlet O provided on the windshield 2012 may be arranged opposite to the ion generating unit in the water ion generator 202.

[0067] The side of the housing body 2011 facing away from the windshield plate 2012 may have a ventilation opening P.

[0068] In this case, a portion of the airflow transmitted within the first air duct D1 can enter the housing body 2011 through the ventilation opening P of the housing body 2011. This portion of the airflow is blocked by the windshield 2012 during its flow, thereby changing its flow direction and being blown out through the water ion outlet O. In addition, this portion of the airflow, while passing through the water ion outlet O, can carry away water ions generated by the ion generating unit of the water ion generator 202, thereby reducing the water ion concentration around the ion generating unit of the water ion generator 202, and further promoting the water ion generator 202 to release more water ions.

[0069] In the examples of this application, refer to Figure 5 and Figure 6 The heat-insulating cover 201 in the water ion generating device 200 may further include: a connecting portion 2013 fixedly connected to the outer wall of the cover body 2011 , and an end of the connecting portion 2013 facing away from the cover body 2011 is fixedly connected to the inner cylinder 101 .

[0070] Here, the connecting portion 2013 can securely connect the housing body 2011 to the inner cylinder 101. The connecting portion 2013 can be a separate connecting rod, one end of which can be screwed to the housing body 2011, and the other end of which can be screwed to the inner cylinder 101. The connecting portion 2013 can also be integrally formed with the housing body 2011 and connected to the inner cylinder 101 via screws. The connecting portion 2013 can also be a component integrally formed with the housing body 2011 and the inner cylinder 101, although this embodiment of the present application is not limited thereto. It should be noted that the number of connecting portions 2013 should be as small as possible while ensuring sufficient connection strength to minimize obstruction to airflow entering the first air duct D1.

[0071] In the embodiment of the present application, the diameter of the first air duct D1 of the hair dryer 000 can be greater than or equal to 20 mm. This allows more air to enter the first air duct D1, resulting in a larger air output volume for the hair dryer 000. The length of the first air duct D1 can be greater than or equal to 90 mm. This allows the air entering the first air duct D1 to have an acceleration distance, which can accelerate the airflow in the first air duct D1, thereby accelerating the water ions and allowing the water ions to be blown a longer distance.

[0072] In summary, an embodiment of the present application provides a hair dryer, comprising: a blower body, a water ion generating device, and a heating assembly. Since the first air duct and the second air duct of the blower body are isolated and distributed, the airflow blown out by the blower body through the second air duct will not interfere with the airflow output through the first air duct. In this case, even if the blower body is able to blow out an airflow with a higher temperature through the second air duct by means of a heating assembly fixed in the second air duct, the temperature of the airflow output through the first air duct can be ensured to be lower. To this end, after the water ion generating device fixed in the first air duct emits water ions, these water ions can be blown out by the airflow with a lower temperature in the first air duct, effectively reducing the attenuation rate of the water ion concentration blown out by the hair dryer, so that the blowing distance of the water ions is long and the concentration is high, thereby effectively improving the reliability of the hair dryer in blowing water ions.

[0073] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0074] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A hair dryer, characterized in that: include: A fan body (100), a water ion generating device (200) and a heating component (300); The fan body (100) has a first air duct (D1) and a second air duct (D2) that are distributed separately, the first air duct (D1) extending along the axial direction of the fan body (100), and the second air duct (D2) surrounding and distributed on the periphery of the first air duct (D1); The water ion generating device (200) is fixed in the first air duct (D1); The heating component (300) is fixed in the second air duct (D2); The fan body (100) comprises an inner cylinder (101) and an outer cylinder (102); the outer cylinder (102) is sleeved on the outside of the inner cylinder (101) and fixedly connected to the inner cylinder (101); The water ion generating device (200) has a heat-insulating cover (201), and the water ion generating device (200) is fixedly connected to a side of the inner cylinder (101) facing away from the outer cylinder (102) via the heat-insulating cover (201).

2. The hair dryer according to claim 1, characterized in that The two end faces distributed in the axial direction of the fan body (100) are respectively: a first end face (S1) and a second end face (S2); the first air duct (D1) can pass through the first end face (S1) and the second end face (S2), and the first end face (S1) has a first air outlet (K1) connected to the first air duct (D1), and the second end face (S2) has a first air inlet (K2) connected to the first air duct (D1); the first end face (S1) also has a second air outlet (K3) connected to the second air duct (D2).

3. The hair dryer according to claim 2, characterized in that The water ion generating device (200) has a water ion outlet (O), and the water ion outlet (O) is distributed on a side of the water ion generating device (200) facing the first air outlet (K1).

4. The hair dryer according to claim 3, characterized in that The water ion generating device (200) is provided with a side of the water ion outlet (O) flush with the first end surface (S1); Alternatively, the first end surface (S1) protrudes outward relative to a side of the water ion generating device (200) where the water ion outlet (O) is provided.

5. The hair dryer according to any one of claims 1 to 4, characterized in that: The inner cylinder (101) is used to enclose the first air duct (D1), and the second air duct (D2) is provided between the inner cylinder (101) and the outer cylinder (102).

6. The hair dryer according to claim 5, characterized in that The water ion generating device (200) comprises: the heat-insulating housing (201), and a water ion generator (202) fixedly connected to the heat-insulating housing (201); Wherein, the heat-insulating cover (201) has a water ion outlet (O).

7. The hair dryer according to claim 6, characterized in that The heat-insulating cover (201) comprises: a cover body (2011) and a windshield (2012); The housing body (2011) is annular, and the water ion generator (202) is fixed within the area enclosed by the housing body (2011); The windshield (2012) is fixedly connected to one side of the housing body (2011), and the windshield (2012) has the water ion outlet (O), and the water ion outlet (O) is arranged opposite to the water ion generator (202); Wherein, the housing body (2011) has a ventilation opening (P) on a side facing away from the windshield (2012).

8. The hair dryer according to claim 7, characterized in that The heat-insulating cover shell (201) further comprises: a connecting portion (2013) fixedly connected to the outer side wall of the cover shell body (2011); an end of the connecting portion (2013) facing away from the cover shell body (2011) is fixedly connected to the inner cylinder (101).

9. The hair dryer according to any one of claims 1-4, 6-8, characterized in that: The hair dryer further comprises: a gripping portion (400); one end of the gripping portion (400) is connected to the blower body (100), and a third air duct (D3) is provided inside the gripping portion (400), the third air duct (D3) is communicated with the second air duct (D2), and a second air inlet (K4) is provided on the surface of the gripping portion (400) and is communicated with the third air duct (D3).

10. The hair dryer according to any one of claims 1-4, 6-8, characterized in that: The diameter of the first air duct (D1) is greater than or equal to 20 mm, and the length of the first air duct (D1) is greater than or equal to 90 mm.