Hair dryer

Abstract

The utility model discloses a kind of hair driers, including air duct assembly, handle assembly, first airflow generating assembly, second airflow generating assembly and heating assembly. Air duct assembly is provided with air outlet end and the first air inlet hole air duct assembly spaced apart with air outlet end, and the first air duct is formed by the at least part of inner tube and outer tube spaced apart with outer tube. First air duct is communicated with air outlet end and is cut off with first air inlet hole. Inner tube is provided with the second air duct that is communicated with air outlet end and first air inlet hole. Handle assembly is provided with second air inlet hole and the third air duct that is communicated with first air duct and second air inlet hole, and handle assembly is fixedly connected with outer tube. First airflow generating assembly is arranged in second air duct. Second airflow generating assembly is arranged in third air duct. Heating assembly is arranged in second air duct. The hair drier can break through the speed limit of single motor, and provide large air volume for user.

Description

Technical Field

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

[0002] With the improvement of production levels, people have increasingly higher requirements for hair dryers.

[0003] In related technologies, most hair dryers utilize an airflow generating component (such as a fan) to produce airflow. To increase airflow, it is usually necessary to increase the speed of the motor in the airflow generating component, thereby increasing the air volume output of the hair dryer. However, the size of the hair dryer limits the size of the motor, making it difficult to increase the motor speed, which in turn hinders the improvement of the airflow generated by the airflow generating component. This is not conducive to increasing the airflow output of the hair dryer to meet people's needs for quickly drying items. Utility Model Content

[0004] This disclosure provides a hair dryer. This hair dryer overcomes the speed limitations of motors in single airflow generating components, providing users with a large airflow volume. Furthermore, the outer drum maintains a moderate temperature during use, enhancing the user experience.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, a hair dryer is provided, including a hair dryer assembly, a handle assembly, a first airflow generating assembly, a second airflow generating assembly, and a heating assembly. The hair dryer assembly has an air outlet and a first air inlet spaced apart from the air outlet. The hair dryer assembly includes an outer tube and an inner tube. The inner tube is fixedly connected to the outer tube, and at least a portion of the inner tube is spaced apart from the outer tube to form a first air duct. The first air duct communicates with the air outlet but is separated from the first air inlet. The inner tube has a second air duct communicating with both the air outlet and the first air inlet. The handle assembly has a second air inlet and a third air duct communicating with both the first air duct and the second air inlet, and the handle assembly is fixedly connected to the outer tube. The first airflow generating assembly is disposed within the second air duct. The second airflow generating assembly is disposed within the third air duct. The heating assembly is disposed within the second air duct and between the air outlet and the first airflow generating assembly.

[0007] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0008] When this hair dryer is in use, the airflow generated by the first airflow generating component flows out from the outlet end through the second air duct, and the airflow generated by the second airflow generating component flows into the first air duct through the third air duct, and then flows out from the outlet end through the second air duct. When the first and second airflow generating components work simultaneously, the airflow generated by the first and second airflow generating components flows out from the outlet end, which can greatly increase the air volume at the outlet end. Compared with the prior art, the hair dryer disclosed in this invention can overcome the speed limit of the motor of a single airflow generating component, and use two airflow generating components to increase the maximum air volume of the hair dryer, providing users with a large air volume to meet people's needs for quickly drying items. Moreover, the heating element is set inside the inner cylinder, which can be placed as far away from the outer cylinder as possible, and heat insulation is provided by the first air duct. As a result, when the heating element heats up and works with the first airflow generating component to generate hot air, heat transfer to the outer cylinder can be reduced, avoiding the outer cylinder from getting too hot and burning the hand. In this way, the outer cylinder temperature can be kept moderate during the use of hot air, improving the user experience.

[0009] The technical solution of this disclosure will be further explained below:

[0010] In one embodiment, the first air duct is an annular channel and is arranged around the inner cylinder.

[0011] And / or, the inner cylinder may be made of insulating material.

[0012] And / or, the inner cylinder is provided with a heat insulation layer. This further improves the heat insulation performance between the heating element and the outer cylinder.

[0013] In one embodiment, the air duct assembly further includes a heat insulation cylinder, which is fixed inside the inner cylinder and positioned between the air outlet and the first airflow generating assembly. The heating element is fixed between the outer wall of the heat insulation cylinder and the inner wall of the inner cylinder. Thus, using the heat insulation cylinder to support the heating element facilitates the formation of an insulating space within the inner cylinder, which can then be used to accommodate other functional devices.

[0014] In one embodiment, one end of the heat insulation cylinder is connected to the second air duct, and the other end is connected to the air outlet. The hair dryer also includes a water ion component disposed inside the heat insulation cylinder. Thus, a flow channel connecting to the second air duct can be formed inside the heat insulation cylinder, and the water ion component is disposed within this flow channel, facilitating the water ion component to enhance the hair care performance of the hair dryer.

[0015] In one embodiment, the air duct assembly further includes a flow guide shroud fixed to one end of the heat insulation cylinder for guiding gas to the heating element. The flow guide shroud has a through hole communicating with the heat insulation cylinder. Thus, the flow guide shroud facilitates the guidance of more gas generated by the first airflow generating component to the heating element, while some gas flows into the heat insulation cylinder through the through hole and then flows to the outlet end.

[0016] In one embodiment, the outer diameter of at least a portion of the shroud gradually increases along the direction from the first airflow generating component to the heating component.

[0017] And / or, the outer wall of the flow guide is provided with a first flow guide surface, at least a portion of which is a frustum and / or an annular arc surface, to guide the gas to the heating element. In this way, the first flow guide surface facilitates the guidance of more gas generated by the first gas flow generating element to the heating element, while some gas flows into the heat insulation cylinder through the through hole and flows to the outlet end through the heat insulation cylinder.

[0018] In one embodiment, the air outlet includes a first air outlet communicating with the heat insulation cylinder.

[0019] In one embodiment, the hair dryer assembly includes a decorative cover with a first air outlet, which is fixed to the other end of the heat insulation cylinder to shield the water ionization component. Thus, the decorative cover enhances the aesthetics of the hair dryer while preventing foreign objects from entering the heat insulation cylinder and affecting the function of the water ionization component.

[0020] In one embodiment, the air outlet includes a second air outlet communicating with the second channel, and the decorative cover and the inner cylinder are spaced apart to form the second air outlet.

[0021] In one embodiment, the inner cylinder includes a cylinder body with a second air duct and a sealing ring fixed to the cylinder body. The sealing ring is sealed to the inner wall of the outer cylinder to separate the first air duct from the first air inlet. Thus, the sealing ring facilitates the installation of the cylinder body into the outer cylinder while also separating the first air duct from the first air inlet, allowing the first air inlet to communicate with the second air duct.

[0022] In one embodiment, the hair dryer further includes a control component, which is fixedly disposed in at least one of the barrel body and the sealing ring. The control component is electrically connected to the first airflow generating component, the second airflow generating component, and the heating component. Thus, the control component is disposed within the first air duct, facilitating the use of cold air generated by the second airflow generating component to cool the control component and improve its operational stability.

[0023] In one embodiment, the control component is fixed to the cylinder body and positioned near the sealing ring.

[0024] And / or, at least a portion of the control component is annular and disposed within the first air duct surrounding the cylinder body.

[0025] In one embodiment, the control component includes a circuit board and electronic control elements disposed on the circuit board. The circuit board is at least partially annular and surrounds the barrel body. The circuit board is fixedly connected to at least one of the barrel body and a sealing ring. This allows for full utilization of the internal space of the hair dryer, resulting in a more compact structure and facilitating miniaturization for easy carrying and storage.

[0026] In one embodiment, the duct assembly further includes a first sealing layer disposed between the sealing ring and the inner wall of the outer cylinder. Thus, the first sealing layer effectively improves the sealing performance between the sealing ring and the outer cylinder.

[0027] In one embodiment, the blower assembly further includes an end cap with a first air inlet. The end cap is placed on the outer cylinder and fixedly connected to a sealing ring, forming a guide channel. The second air duct communicates with the first air inlet through the guide channel. Thus, the end cap not only enhances the aesthetics of the blower but also allows external air to be guided into the second air duct through the first air inlet using the guide channel.

[0028] In one embodiment, a second guide surface is provided on the outer wall of the cylinder body. The second guide surface is disposed between the sealing ring and the heating element, and is used to guide the gas delivered from the third air duct to the outlet. In this way, the second guide surface can reduce turbulence and / or eddies, reduce the loss of gas flowing from the third air duct to the first air duct, and help to increase the air velocity of the blower.

[0029] In one embodiment, at least a portion of the second guide surface is disposed in the extending direction of the second air duct. This better avoids turbulence and / or eddies during the gas flow from the third air duct to the first air duct, reducing flow velocity loss and facilitating increased airflow speed in the blower.

[0030] And / or, at least a portion of the second guide surface is a frustum and / or an annular arc surface to guide the gas to the outlet end.

[0031] In one embodiment, the air duct assembly further includes at least two guide plates spaced circumferentially along the duct body. The guide plates are fixed to at least one of the duct body and the outer duct, and are positioned between the second guide surface and the air outlet. Thus, the guide plates can divide the first air duct into multiple channels, further reducing turbulence and / or eddies, increasing the airflow at the air outlet, and thus improving the air velocity of the blower.

[0032] In one embodiment, the guide vane is integrally formed with the cylinder body.

[0033] Alternatively, the deflector can be integrally molded with the outer cylinder, reducing assembly steps.

[0034] In one embodiment, the inner wall of the cylinder body is further provided with a third guide surface, which is disposed between the first airflow generating component and the heating component, and is used to guide the gas generated by the first airflow generating component to the heating component. In this way, the third guide surface facilitates the guidance of more gas generated by the first airflow generating component to the heating component, thereby increasing the hot air volume of the hair dryer.

[0035] In one embodiment, the cylinder body includes a first cylinder, a guide cylinder with a second guide surface and a third guide surface, and a second cylinder fixedly connected to a sealing ring. The first cylinder is used to accommodate the heating component and is connected to the air outlet. One end of the guide cylinder is fixedly connected to the first cylinder, and the other end of the guide cylinder is fixedly connected to the second cylinder to form a second air duct. The first airflow generating component is fixedly disposed in the second cylinder.

[0036] In one embodiment, at least a portion of the third guide surface is a frustum and / or annular arc surface to guide the gas generated by the first airflow generating component to the heating component.

[0037] And / or, along the direction from the first airflow generating component to the heating component, at least part of the outer diameter and inner diameter of the guide tube gradually increase.

[0038] And / or, the outer diameter of the first cylinder is greater than the outer diameter of the second cylinder.

[0039] And / or, the cylinder body also includes a third cylinder integrally formed with one end of the guide cylinder, the third cylinder being fitted and sealed with the first cylinder.

[0040] In one embodiment, the cylinder body further includes a second sealing layer disposed between the first cylinder and the third cylinder. Thus, the second sealing layer effectively improves the sealing performance between the first and third cylinders, reducing heat loss.

[0041] In one embodiment, the first airflow generating assembly includes a first motor, a first fan blade fixedly connected to the output shaft of the first motor, and a first drive plate for driving the first motor. The first drive plate is fixed to the end of the first motor and positioned in the extending direction of the second air duct. Thus, the airflow generated by the first airflow generating assembly can first blow onto the first drive plate to dissipate heat from it, and also facilitates the use of the heat from the first drive plate to raise the temperature of the hot air.

[0042] And / or, the second airflow generating assembly includes a second motor, a second fan blade fixedly connected to the output shaft of the second motor, and a second drive plate for driving the second motor. The second drive plate is fixed to the end of the second motor and is positioned in the extension direction of the third air duct. In this way, the airflow generated by the second airflow generating assembly can first blow towards the second drive plate to dissipate heat from the second drive plate, and it is also beneficial to utilize the heat from the second drive plate to increase the temperature of the hot air.

[0043] In one embodiment, the air outlet further includes a third air outlet, with one end of the outer cylinder and one end of the inner cylinder spaced apart to form the third air outlet.

[0044] And / or, the air volume generated by the first airflow generating component is greater than the air volume generated by the second airflow generating component.

[0045] And / or, the handle assembly includes a first inner shell, a second inner shell, a ventilation hood, and a decorative outer shell, wherein the first inner shell and the second inner shell are detachably connected to form a third air duct. The ventilation hood has a second air inlet and is connected to the first and second inner shells. The decorative outer shell is fitted onto the outer walls of the first and second inner shells and is disposed between the ventilation hood and the air duct assembly. This facilitates the assembly of the second airflow generating component within the third air duct, ensuring convenient assembly and maintaining the aesthetic appearance of the handle assembly.

[0046] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0047] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0048] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of a hair dryer shown in one embodiment.

[0050] Figure 2 for Figure 1 The left view of the hair dryer shown.

[0051] Figure 3 for Figure 2 The diagram shows a half-section of AA.

[0052] Figure 4 for Figure 3 The diagram shows the first airflow generating component of the hair dryer in operation.

[0053] Figure 5 for Figure 3 The diagram shows the first and second airflow generating components of the hair dryer working simultaneously.

[0054] Figure 6 for Figure 3 The diagram shows the second airflow generating component of the hair dryer in operation.

[0055] Figure 7 for Figure 2 The diagram shows a half-section of BB.

[0056] Figure 8 for Figure 1 The diagram shown is a partial structural diagram of the hair dryer with the outer barrel hidden.

[0057] Figure 9 This is a schematic diagram of the assembly of the guide vane and the cylinder body according to one embodiment.

[0058] Figure 10 This is a partial structural schematic diagram of a handle assembly according to one embodiment.

[0059] Figure 11 for Figure 10 The diagram shows the structure of the handle assembly after the decorative shell has been concealed.

[0060] Explanation of reference numerals in the attached figures:

[0061] 10. Hair dryer; 100. Hair dryer assembly; 101. Air outlet; 1011. First air outlet; 1012. Second air outlet; 1013. Third air outlet; 102. First air inlet; 103. First air duct; 104. Air guide channel; 110. Outer cylinder; 120. Inner cylinder; 1001. Second air duct; 121. Cylinder body; 1211. First cylinder body; 1212. Air guide cylinder body; 1201. Second air guide surface; 1202. Third air guide surface; 1213. Second cylinder body; 1214. Third cylinder body; 1215. Second sealing layer; 122. Sealing ring; 130. Heat insulation cylinder; 140. Air guide cover; 141. Through hole; 142. First air guide surface; 150. Decorative cover; 160. End cap; 170. First sealing layer; 180. Guide plate; 200. Handle assembly; 201. Third air duct; 202. Second air inlet; 210. First inner shell; 220. Second inner shell; 230. Ventilation hood; 240. Decorative outer shell; 241. Clearance hole; 250. Filter screen; 300. First airflow generating assembly; 310. First motor; 320. First fan blade; 330. First drive board; 400. Second airflow generating assembly; 410. Second motor; 420. Second fan blade; 430. Second drive board; 500. Heating component; 600. Water ion component; 700. Control component; 710. Circuit board; 720. Electronic control component; 800. Operation key. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0064] like Figure 1 and Figure 2 As shown, in some embodiments, a hair dryer 10 is provided that can overcome the speed limitation of a single motor and provide users with a large air volume. Moreover, during use, the outer cylinder 110 of this hair dryer 10 maintains a moderate temperature, enhancing the user experience.

[0065] like Figure 2 as well as Figure 3 As shown, the hair dryer 10 includes a blower assembly 100, a handle assembly 200, a first airflow generating assembly 300, a second airflow generating assembly 400, and a heating assembly 500. The blower assembly 100 has an air outlet 101 and a first air inlet 102 spaced apart from the air outlet 101. The blower assembly 100 includes an outer cylinder 110 and an inner cylinder 120. The inner cylinder 120 is fixedly connected to the outer cylinder 110, and at least a portion of the inner cylinder 120 is spaced apart from the outer cylinder 110 to form a first air duct 103. The first air duct 103 communicates with the air outlet 101 but is separated from the first air inlet 102. The inner cylinder 120 has a second air duct 1001 communicating with both the air outlet 101 and the first air inlet 102. The handle assembly 200 has a second air inlet and a third air duct 201 communicating with the first air duct 103 and the second air inlet. The handle assembly 200 is fixedly connected to the outer cylinder 110. The first airflow generating component 300 is disposed within the second air duct 1001. The second airflow generating component 400 is disposed within the third air duct 201. The heating component 500 is disposed within the second air duct 1001 and is positioned between the air outlet 101 and the first airflow generating component 300.

[0066] When the hair dryer 10 is in use, the airflow generated by the first airflow generating component 300 flows out from the outlet end through the second air duct 1001, and the airflow generated by the second airflow generating component 400 flows into the first air duct 103 through the third air duct 201, and then flows out from the outlet end through the second air duct 1001. When the first airflow generating component 300 and the second airflow generating component 400 work simultaneously, the airflow generated by the first airflow generating component 300 and the airflow generated by the second airflow generating component 400 will flow out from the outlet end 101, which can greatly increase the air volume at the outlet end 101. Compared with the prior art, the hair dryer 10 of this disclosure can overcome the speed limit of the motor of a single airflow generating component, and use two airflow generating components to increase the maximum air volume of the hair dryer 10, providing users with a large air volume to meet people's needs for quickly drying items. Moreover, the heating component 500 is disposed inside the inner cylinder 120, which can be placed as far away from the outer cylinder 110 as possible, and is insulated by the first air duct 103. This allows the heating element 500 to work in conjunction with the first airflow generating element 300 to produce hot air, reducing heat transfer to the outer cylinder 110 and preventing it from becoming too hot to handle. Thus, during hot air blowing, the hair dryer 10 maintains a moderate temperature for the outer cylinder 110, improving the user experience.

[0067] Furthermore, the cooperation between the first airflow generating component 300 and the second airflow generating component 400 further enhances the selectivity of the airflow volume of the hair dryer 10. For example, the first airflow generating component 300 offers two airflow settings, while the second airflow generating component 400 offers one. In this case, the hair dryer 10 can achieve five airflow settings. Figure 4 As shown, when only the first airflow generating component 300 is working, since the first airflow generating component 300 has two airflow levels to choose from, the blower 10 also has two airflow levels to choose from.

[0068] And such Figure 5 As shown, when the first airflow generating component 300 and the second airflow generating component 400 work simultaneously, the airflow generated by the second airflow generating component 400 can also increase the airflow at the air outlet. Since the first airflow generating component 300 has two airflow options, the blower 10 can also have two other airflow options.

[0069] And such Figure 6 As shown, when only the second airflow generating component 400 is working simultaneously, a single airflow level can be selected.

[0070] By adjusting the operation of the heating element 500, five levels of cold air volume and four levels of hot air volume can be achieved. If the heat output of the heating element 500 is also adjustable, different combinations of hot air temperature and air volume can be further added.

[0071] Thus, the hair dryer 10 disclosed herein utilizes at least two airflow generating components to generate airflow, which can both increase the maximum airflow of the hair dryer 10 and increase the selection of airflow levels.

[0072] like Figure 2 As shown, in some embodiments, the first air duct 103 is an annular channel and is arranged around the inner cylinder 120. In this way, the first air duct 103 can be used to insulate the heating component 500 and the outer cylinder 110 from all sides, reducing the heat transfer to the outer cylinder 110 and preventing the outer cylinder 110 from getting too hot to the touch.

[0073] Optionally, in some embodiments, the inner cylinder 120 is made of a heat-insulating material. In this way, the heat generated by the heating element 500 can be blocked by the inner cylinder 120, further improving the heat insulation performance between the heating element 500 and the outer cylinder 110.

[0074] Optionally, in some embodiments, the inner cylinder 120 is provided with a heat insulation layer (not shown). In this way, the heat generated by the heating element 500 can be blocked by the inner cylinder 120, thereby further improving the heat insulation performance between the heating element 500 and the outer cylinder 110.

[0075] like Figures 3 to 7 As shown, in some embodiments, the air duct assembly 100 further includes a heat insulation cylinder 130, which is fixed inside the inner cylinder 120 and disposed between the air outlet 101 and the first airflow generating assembly 300. The heating assembly 500 is fixed between the outer side wall of the heat insulation cylinder 130 and the inner side wall of the inner cylinder 120. Thus, by using the heat insulation cylinder 130 to support the heating assembly 500, it is easy to form a heat insulation space inside the inner cylinder 120, which can be used to accommodate other functional devices.

[0076] It should be noted that there are multiple ways to implement the heating element 500, as long as it meets the usage requirements of the hair dryer 10.

[0077] Optionally, in some embodiments, the heating component 500 includes a mica sheet fixed to the heat insulation cylinder 130 and a heating wire disposed on the mica sheet.

[0078] like Figures 3 to 7 As shown, in some embodiments, one end of the heat insulation cylinder 130 is connected to the second air duct 1001, and the other end is connected to the air outlet 101. The hair dryer 10 also includes a water ion component 600 disposed within the heat insulation cylinder 130. Thus, a flow channel communicating with the second air duct 1001 can be formed inside the heat insulation cylinder 130, and the water ion component 600 is disposed within this flow channel, facilitating the water ion component 600 to enhance the hair care performance of the hair dryer 10.

[0079] Specifically, when the water ion component 600 is working, it can generate water mist. The airflow generated by the first airflow generating component 300 can enter the heat insulation cylinder 130, and then carry the water mist generated by the water ion component 600 out of the air outlet, thereby achieving the effect of nourishing and protecting hair and reducing hair frizz.

[0080] It should be noted that there are multiple ways to implement the water ion component 600, as long as it meets the usage requirements of the hair dryer 10.

[0081] Optionally, in some embodiments, the water ion assembly 600 includes a phase change module (not labeled) and a high-pressure module (not labeled). The refrigerant in the phase change module changes from a solid to a liquid state, creating a temperature difference with the air to produce condensate. The high-pressure module acts on the phase change module to produce water mist. By utilizing the heat-absorbing property of the refrigerant during phase change, maintaining the temperature difference between the phase change module and the air reduces the dependence of condensate formation on the temperature difference, making water mist formation more reliable.

[0082] The phase change module includes a condensation module.

[0083] like Figures 3 to 7 As shown, in some embodiments, the air duct assembly 100 further includes a flow guide shroud 140, which is fixed to one end of the heat insulation cylinder 130 and is used to guide the gas to the heating assembly 500. The flow guide shroud 140 is provided with a through hole 141 communicating with the heat insulation cylinder 130. In this way, the flow guide shroud 140 facilitates the guidance of more gas generated by the first airflow generating assembly 300 to the heating assembly 500, while some gas flows into the heat insulation cylinder 130 through the through hole 141 and flows to the outlet end 101 through the heat insulation cylinder 130.

[0084] Optionally, in some embodiments, the outer diameter of at least a portion of the guide shroud 140 gradually increases along the direction from the first airflow generating component 300 to the heating component 500. Thus, as the guide shroud 140 directs more gas generated by the first airflow generating component 300 to the heating component 500, the gradually increasing outer diameter of at least a portion of the guide shroud 140 can prevent or reduce turbulence, reduce wind noise and reduce wind energy loss, thereby helping to reduce the energy consumption of the blower 10.

[0085] like Figure 4 as well as Figure 5 As shown, in some embodiments, the outer wall of the air guide shroud 140 is provided with a first air guide surface 142, at least a portion of which is a frustum and / or an annular arc surface, to guide the gas to the heating element 500. Thus, by utilizing the first air guide surface 142 to facilitate the guiding of more gas generated by the first airflow generating component 300 to the heating element 500, turbulence generation can be prevented or reduced, wind noise and wind energy loss can be reduced, which is beneficial for reducing the energy consumption of the blower 10.

[0086] It should be noted that at least a portion of the first guide surface is a "frustum and / or annular arc surface" including the first guide surface being a frustum, a portion of the first guide surface being a frustum, the first guide surface being an annular arc surface, a portion of the first guide surface being an annular arc surface, and a portion of the first guide surface being a frustum and a portion of the first guide surface being an annular arc surface.

[0087] In addition, the annular arc surface includes at least one of the following: a partially spherical surface that is larger at one end and smaller at the other, or a partially ellipsoidal surface that is larger at one end and smaller at the other, as long as it can achieve the flow guiding effect.

[0088] In some embodiments, along the direction from the first airflow generating component to the heating component, the middle part of the first guide surface is a frustum, and the two ends of the first guide surface are annular arc surfaces.

[0089] like Figures 3 to 7 As shown, in some embodiments, the air outlet 101 includes a first air outlet 1011 communicating with the heat insulation cylinder 130. Thus, when the water ion assembly 600 is working, it can generate water mist. The airflow generated by the first airflow generating assembly 300 can enter the heat insulation cylinder 130, and then carry the water mist generated by the water ion assembly 600 out through the first air outlet 1011, thereby achieving the effect of nourishing and protecting hair, and reducing hair frizz.

[0090] like Figures 3 to 7 As shown, in some embodiments, the hair dryer assembly 100 includes a decorative cover 150 with a first air outlet 1011. The decorative cover 150 is fixed to the other end of the heat insulation cylinder 130 to cover the water ion assembly 600. Thus, the decorative cover 150 enhances the aesthetics of the hair dryer 10 and prevents foreign objects from entering the heat insulation cylinder 130 and affecting the function of the water ion assembly 600. The first air outlet 1011, located on the decorative cover 150, allows the water mist generated by the water ion assembly 600 to be blown out from the center of the air outlet, improving the hair care effect.

[0091] like Figures 3 to 7 As shown, in some embodiments, the air outlet 101 includes a second air outlet 1012 communicating with the second channel, and the decorative cover 150 and the inner cylinder 120 are spaced apart to form the second air outlet 1012. This facilitates the formation of a ring-shaped second air outlet, improving the uniformity of airflow. Furthermore, when the heating element 500 is working, the blower 10 can generate uniform hot air through the second air outlet 1012. Combined with the foregoing analysis, it can be seen that the second air outlet can be arranged around the first air outlet 1011, allowing the water mist generated by the water ion component 600 to diffuse evenly in all directions, carried by the water flowing out of the second air outlet 1012.

[0092] like Figures 3 to 7As shown, in some embodiments, the inner cylinder 120 includes a cylinder body 121 with a second air duct 1001 and a sealing ring 122 fixed to the cylinder body 121. The sealing ring 122 is sealed to the inner wall of the outer cylinder 110 to separate the first air duct 103 from the first air inlet 102. Thus, the sealing ring 122 facilitates the installation of the cylinder body 121 into the outer cylinder 110 while also separating the first air duct 103 from the first air inlet 102, allowing the first air inlet 102 to communicate with the second air duct 1001.

[0093] like Figures 3 to 7 As shown, in some embodiments, the hair dryer 10 further includes a control component 700, which is fixedly disposed in at least one of the barrel body 121 and the sealing ring 122. The control component 700 is electrically connected to the first airflow generating component 300, the second airflow generating component 400, and the heating component 500. This facilitates the use of the control component 700 to control the on / off state of the first airflow generating component 300, the second airflow generating component 400, and the heating component 500. Furthermore, the control component 700 is disposed within the first air duct 103, allowing the cool air generated by the second airflow generating component 400 to cool the control component 700, thereby improving the operational stability of the control component 700.

[0094] like Figures 3 to 7 As shown, in some embodiments, the control component 700 is fixed to the cylinder body 121 and positioned close to the sealing ring 122. This allows the control component 700 to be spaced as far apart as possible from the heating component 500, reducing the impact of heat generated by the heating component 500 on the control component 700. Simultaneously, the space at the rear end of the air duct assembly 100 is fully utilized to house the control component 700, resulting in a smaller outer diameter for the air duct assembly 100.

[0095] like Figure 7 as well as Figure 8 As shown, in some embodiments, at least a portion of the control component 700 is annular and disposed within the first air duct 103 surrounding the barrel body 121. This allows full utilization of the circumferential space of the barrel body 121 to accommodate the control component 700, resulting in a compact structure for the hair dryer 10 and facilitating miniaturization.

[0096] It should be noted that at least a portion of the control assembly 700 is annular, including a plurality of control devices spaced circumferentially along the cylindrical body 121. It also includes, for example... Figure 7 as well as Figure 8As shown, in some embodiments, the control component 700 includes a circuit board 710 and an electronic control element 720 disposed on the circuit board 710. The circuit board 710 is at least partially annular and surrounds the barrel body 121. The circuit board 710 is fixedly connected to at least one of the barrel body 121 and the sealing ring 122. In this way, the circumferential space of the barrel body 121 can be fully utilized to accommodate the control component 700, making the structure of the hair dryer 10 compact and facilitating the miniaturization of the hair dryer 10 for easy carrying and storage.

[0097] The specific implementation of the electronic control component 720 can be varied, including but not limited to at least one of the following: electronic control switch, voltage regulator, current regulator, protection switch, etc.

[0098] like Figure 7 As shown, in some embodiments, the duct assembly 100 further includes a first sealing layer 170 disposed between the sealing ring 122 and the inner wall of the outer cylinder 110. Thus, the first sealing layer 170 effectively improves the sealing performance between the sealing ring 122 and the outer cylinder 110.

[0099] like Figure 7 As shown, in some embodiments, the blower assembly 100 further includes an end cap 160 with a first air inlet 102. The end cap 160 covers the outer cylinder 110 and is fixedly connected to the sealing ring 122, forming a guide channel 104. The second air duct 1001 communicates with the first air inlet 102 through the guide channel 104. In this way, the end cap 160 can enhance the aesthetics of the blower 10 and also allow external air to be introduced into the second air duct 1001 through the first air inlet 102 using the guide channel 104.

[0100] like Figures 4 to 7 As shown, in some embodiments, the outer wall of the cylinder body 121 is provided with a second guide surface 1201. The second guide surface 1201 is disposed between the sealing ring 122 and the heating element 500, and is used to guide the gas delivered from the third air duct 201 to the outlet end 101. In this way, the second guide surface 1201 can reduce turbulence and / or eddies, reduce the loss of gas flowing from the third air duct 201 to the first air duct 103, and help to increase the wind speed of the blower 10.

[0101] like Figure 4 as well as Figure 5 As shown, in some embodiments, at least a portion of the second guide surface 1201 is disposed in the extending direction of the third air duct 201. This better avoids turbulence and / or eddies during the flow of gas from the third air duct 201 to the first air duct 103, reducing flow velocity loss and facilitating an increase in the air velocity of the blower 10.

[0102] Optionally, in some embodiments, at least a portion of the second guide surface 1201 is a frustum and / or annular arc surface to guide the gas to the outlet end 101. Thus, the fact that at least a portion of the second guide surface 1201 is a frustum and / or annular arc surface allows it to surround the first air duct 103, further preventing or reducing turbulence, reducing wind noise and energy loss, and thus helping to reduce the energy consumption of the blower 10.

[0103] It should be noted that at least a portion of the second guide surface is a "frustum and / or annular arc surface" including the second guide surface being a frustum, a portion of the second guide surface being a frustum, the second guide surface being an annular arc surface, a portion of the second guide surface being an annular arc surface, and a portion of the second guide surface being a frustum and a portion of the second guide surface being an annular arc surface.

[0104] In addition, the annular arc surface includes at least one of the following: a partially spherical surface that is larger at one end and smaller at the other, or a partially ellipsoidal surface that is larger at one end and smaller at the other, as long as it can achieve the flow guiding effect.

[0105] In some embodiments, along the direction from the first airflow generating component to the heating component, the middle part of the second guide surface is a frustum, and the two ends of the second guide surface are annular arc surfaces.

[0106] like Figures 4 to 7 As shown, in some embodiments, the inner wall of the cylinder body 121 is further provided with a third guide surface 1202. The third guide surface 1202 is disposed between the first airflow generating component 300 and the heating component 500, and is used to guide the gas generated by the first airflow generating component 300 to the heating component 500. In this way, the third guide surface 1202 facilitates the guidance of more gas generated by the first airflow generating component 300 to the heating component 500, thereby increasing the hot air volume of the blower 10.

[0107] Optionally, in some embodiments, at least a portion of the third guide surface 1202 is a frustum and / or annular arc surface to guide the gas generated by the first airflow generating component 300 to the heating component 500. Thus, the fact that at least a portion of the third guide surface 1202 is a frustum and / or annular arc surface allows it to surround the second air duct 1001, further preventing or reducing turbulence, reducing wind noise and energy loss, and thus helping to reduce the energy consumption of the blower 10.

[0108] It should be noted that at least a portion of the third guide surface is a "frustum and / or annular arc surface" including the third guide surface being a frustum, a portion of the third guide surface being a frustum, the third guide surface being an annular arc surface, a portion of the third guide surface being an annular arc surface, and a portion of the third guide surface being a frustum and a portion of the third guide surface being an annular arc surface.

[0109] In addition, the annular arc surface includes at least one of the following: a partially spherical surface that is larger at one end and smaller at the other, or a partially ellipsoidal surface that is larger at one end and smaller at the other, as long as it can achieve the flow guiding effect.

[0110] In some embodiments, along the direction from the first airflow generating component to the heating component, the middle part of the third guide surface is a frustum, and the two ends of the third guide surface are annular arc surfaces.

[0111] like Figure 7 As shown, in some embodiments, the cylinder body 121 includes a first cylinder body 1211, a guide cylinder body 1212 provided with a second guide surface 1201 and a third guide surface 1202, and a second cylinder body 1213 fixedly connected to a sealing ring 122. The first cylinder body 1211 is used to accommodate the heating element 500 and communicates with the air outlet 101. One end of the guide cylinder body 1212 is fixedly connected to the first cylinder body 1211, and the other end of the guide cylinder body 1212 is fixedly connected to the second cylinder body 1213 to form a second air duct 1001. The first airflow generating element 300 is fixedly disposed in the second cylinder body 1213.

[0112] like Figure 7 As shown, in some embodiments, at least a portion of the outer and inner diameters of the guide cylinder 1212 gradually increase along the direction from the first airflow generating component 300 to the heating component 500. This allows the second guide surface 1201 and the third guide surface 1202 to change into frustum and / or annular arc surfaces for better guidance, further preventing or reducing turbulence, reducing wind noise and energy loss, and thus reducing the energy consumption of the blower 10. Furthermore, the thickness of the guide cylinder 1212 does not increase, reducing the weight of the cylinder body 121.

[0113] like Figure 7 As shown, in some embodiments, the cylinder body 121 further includes a third cylinder body 1214 integrally formed with one end of the flow guide cylinder body 1212, and the third cylinder body 1214 is fitted and sealed with the first cylinder body 1211. Thus, during the assembly of the hair dryer 10, components such as the heating element 500 can be assembled onto the first cylinder body 1211, and then sealed with the third cylinder body 1214 to fix it to the flow guide cylinder body 1212, improving assembly efficiency. Furthermore, using the third cylinder body 1214 to seal with the first cylinder body 1211 increases the connection area between the two, improving sealing performance.

[0114] like Figure 7As shown, in some embodiments, the cylinder body 121 further includes a second sealing layer 1215 disposed between the first cylinder body 1211 and the third cylinder body 1214. Thus, the second sealing layer 1215 effectively improves the sealing performance between the first cylinder body 1211 and the third cylinder body 1214, preventing hot air leakage into the first air duct 103 and affecting the operating performance of electronic devices (e.g., the aforementioned control component 700) disposed in the first air duct 103.

[0115] like Figure 7 As shown, in some embodiments, the air outlet 101 further includes a third air outlet 1013, with one end of the outer cylinder 110 and one end of the inner cylinder 120 spaced apart to form the third air outlet 1013. This facilitates the formation of a ring-shaped third air outlet, improving the uniformity of airflow.

[0116] It should be noted that the specific implementation of the first airflow generating component 300 and / or the second airflow generating component 400 includes, but is not limited to, a fan, a negative pressure generator, a centrifugal fan, etc.

[0117] like Figure 7 As shown, in some embodiments, the first airflow generating assembly 300 includes a first motor 310, a first fan blade 320 fixedly connected to the output shaft of the first motor 310, and a first drive plate 330 for driving the first motor 310. The first drive plate 330 is fixed to the end of the first motor 310 and is disposed in the extending direction of the second air duct 1001. In this way, the airflow generated by the first airflow generating assembly 300 can first blow towards the first drive plate 330 to dissipate heat from the first drive plate 330, and it is also beneficial to utilize the heat of the first drive plate 330 to increase the temperature of the hot air.

[0118] See you later Figures 3 to 6 As shown, in some embodiments, the second airflow generating assembly 400 includes a second motor 410, a second fan blade 420 fixedly connected to the output shaft of the second motor 410, and a second drive plate 430 for driving the second motor 410. The second drive plate 430 is fixed to the end of the second motor 410 and is disposed in the extending direction of the third air duct 201. In this way, the airflow generated by the second airflow generating assembly 400 can first blow towards the second drive plate 430 to dissipate heat from the second drive plate 430, and it is also beneficial to use the heat from the second drive plate 430 to increase the temperature of the hot air.

[0119] like Figure 9As shown, in some embodiments, the air duct assembly 100 further includes at least two guide plates 180 spaced circumferentially along the cylinder body 121. The guide plates 180 are fixed to at least one of the cylinder body 121 and the outer cylinder 110, and are disposed between the second guide surface 1201 and the air outlet 101. Thus, the guide plates 180 can divide the first air duct 103 into multiple channels, further reducing turbulence and / or eddies, increasing the air output of the air outlet 101, and thus improving the air velocity of the blower 10.

[0120] In some embodiments, the guide plate 180 is integrally formed with the cylinder body 121. This reduces assembly steps and improves the assembly efficiency of the hair dryer 10.

[0121] In other embodiments, the guide plate 180 and the outer cylinder 110 are integrally formed. This reduces assembly steps and improves the assembly efficiency of the hair dryer 10.

[0122] In some embodiments, the air volume generated by the first airflow generating component 300 is greater than the air volume generated by the second airflow generating component 400. Thus, the first airflow generating component 300, in conjunction with the heating component 500, can increase the hot air volume.

[0123] In conjunction with the foregoing embodiments, in some embodiments, the first motor 310 of the first airflow generating assembly 300 and the second motor 410 of the second airflow generating assembly 400 are both constant-speed motors. This reduces the cost of the hair dryer 10. Furthermore, the on / off coordination of the first motor 310 and the second motor 410 allows for multi-speed airflow adjustment. (Refer to...) Figure 4 As shown, when only the first airflow generating component 300 is working, a medium-speed airflow supply is achieved for the blower 10. (Refer to...) Figure 5 As shown, when the first airflow generating component 300 and the second airflow generating component 400 operate simultaneously, the airflow generated by the second airflow generating component 400 can also increase the airflow at the outlet, thereby achieving high-speed airflow supply for the blower 10. (Continue referring to...) Figure 6 As shown, when only the second airflow generating component 400 is working simultaneously, a low-speed airflow supply is achieved for the blower 10.

[0124] Understandably, because the outer cylinder 110 is relatively large, the inner cylinder 120 is also larger than the handle assembly 200. This makes it easier to utilize the space in the inner cylinder 120 to accommodate the first airflow generating assembly 300, which has a larger air volume but also a larger size, thus reducing the difficulty of arranging the internal components of the hair dryer 10.

[0125] like Figures 3 to 5As shown, in some embodiments, the handle assembly 200 includes a first inner shell 210, a second inner shell 220, a ventilation hood 230, and a decorative outer shell 240. The first inner shell 210 and the second inner shell 220 are detachably connected to form a third air duct 201. The ventilation hood 230 is provided with a second air inlet and is connected to the first inner shell 210 and the second inner shell 220. The decorative outer shell 240 is fitted onto the outer walls of the first inner shell 210 and the second inner shell 220 and is disposed between the ventilation hood 230 and the air duct assembly 100. This facilitates the assembly of the second airflow generating assembly 400 within the third air duct 201, making assembly convenient and ensuring the aesthetic appearance of the handle assembly 200.

[0126] like Figures 3 to 5 As shown, in some embodiments, the hair dryer 10 further includes a filter screen 250 fixedly connected to the first inner shell 210 and the second inner shell 220. The filter screen 250 is disposed between the ventilation cover 230 and the third air duct 201, and the ventilation cover 230 is detachably connected to at least one of the first inner shell 210 and the second inner shell 220. Thus, during use, the ventilation cover 230 can be used to protect the filter screen 250. When the filter screen 250 needs cleaning, the ventilation cover 230 can be removed from the first inner shell 210 and the second inner shell 220 for easy cleaning.

[0127] like Figure 5 , Figure 10 as well as Figure 11 As shown, in some embodiments, the hair dryer 10 also includes at least one operation key 800, which is movably disposed in one of the first inner shell 210 and the second inner shell 220, and the decorative outer shell 240 is provided with a clearance hole 241 to avoid the operation key 800.

[0128] It should be noted that the operation key 800 can be implemented in various ways, including but not limited to at least one of the following: sliding key, pressing key, touch key, etc.

[0129] In one example, the operation key 800 includes at least one of the following: a slideable airflow adjustment key (including off, on, and airflow adjustment), a water ion on / off key, and a temperature on / off key.

[0130] Understandably, during the assembly of the hair dryer 10, the second airflow generating component 400 can be installed onto the second inner shell 220, and the operation button 800 can be installed onto the first inner shell 210. Then, the first inner shell 210 and the second inner shell 220 are fixedly connected to form the third air duct 201, which is then fixedly connected to the outer cylinder 110. Next, the decorative outer shell 240 is fitted onto the outside of the first inner shell 210 and the second inner shell 220, and then the filter 250 and ventilation hood 230, among other components, are installed.

[0131] It should be noted that, in the embodiments of this disclosure, when an element is referred to as "fixed to," "set on," "fixed to," or "mounted on" another element, it can be directly on the other element or there may be an intermediate element.

[0132] Furthermore, when one component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. Further, when one component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, or bonding, which are achievable in conventional technologies and will not be elaborated upon here.

[0133] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0134] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0135] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0136] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0138] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A hair dryer, characterized in that, include: A duct assembly (100) is provided with an air outlet (101) and a first air inlet (102) spaced apart from the air outlet (101). The duct assembly (100) includes an outer cylinder (110) and an inner cylinder (120). The inner cylinder (120) is fixedly connected to the outer cylinder (110), and at least a portion of the inner cylinder (120) is spaced apart from the outer cylinder (110) to form a first air duct (103). The first air duct (103) communicates with the air outlet (101) but is separated from the first air inlet (102). The inner cylinder (120) is provided with a second air duct (1001) communicating with the air outlet (101) and the first air inlet (102). The handle assembly (200) is provided with a second air inlet and a third air duct (201) communicating with the first air duct (103) and the second air inlet. The handle assembly (200) is fixedly connected to the outer cylinder (110). The first airflow generating component (300) is disposed within the second air duct (1001); A second airflow generating component (400) is disposed within the third air duct (201); and The heating element (500) is disposed in the second air duct (1001) and between the air outlet (101) and the first airflow generating element (300).

2. The hair dryer according to claim 1, characterized in that, The first air duct (103) is an annular channel and is arranged around the inner cylinder (120); And / or, the inner cylinder (120) is made of a heat-insulating material; And / or, the inner cylinder (120) is provided with a heat insulation layer.

3. The hair dryer according to claim 1, characterized in that, The air duct assembly (100) further includes a heat insulation cylinder (130), which is fixed inside the inner cylinder (120) and disposed between the air outlet (101) and the first airflow generating assembly (300). The heating assembly (500) is fixed between the outer wall of the heat insulation cylinder (130) and the inner wall of the inner cylinder (120).

4. The hair dryer according to claim 3, characterized in that, One end of the heat insulation cylinder (130) is connected to the second air duct (1001), and the other end is connected to the air outlet (101). The blower also includes a water ion component (600) disposed inside the heat insulation cylinder (130).

5. The hair dryer according to claim 4, characterized in that, The air duct assembly (100) further includes a flow guide shroud (140), which is fixed to one end of the heat insulation cylinder (130) and is used to guide the gas to the heating assembly (500). The flow guide shroud (140) is provided with a through hole (141) communicating with the heat insulation cylinder (130).

6. The hair dryer according to claim 5, characterized in that, Along the direction from the first airflow generating component (300) to the heating component (500), at least a portion of the outer diameter of the airflow guide (140) gradually increases; And / or, the outer wall of the flow guide (140) is provided with a first flow guide surface, at least a portion of which is a frustum and / or an annular arc surface, to guide gas to the heating component (500).

7. The hair dryer according to claim 4, characterized in that, The air outlet (101) includes a first air outlet (1011) that communicates with the heat insulation cylinder (130).

8. The hair dryer according to claim 7, characterized in that, The air duct assembly (100) includes a decorative cover (150) with the first air outlet (1011), the decorative cover (150) being fixed to the other end of the heat insulation cylinder (130) to shield the water ion assembly (600).

9. The hair dryer according to claim 8, characterized in that, The air outlet (101) includes a second air outlet (1012) communicating with the second channel, and the decorative cover (150) and the inner cylinder (120) are spaced apart to form the second air outlet (1012).

10. The hair dryer according to any one of claims 1 to 9, characterized in that, The inner cylinder (120) includes a cylinder body (121) with a second air duct (1001) and a sealing ring (122) fixed to the cylinder body (121). The sealing ring (122) is sealed to the inner wall of the outer cylinder (110) so that the first air duct (103) is separated from the first air inlet (102).

11. The hair dryer according to claim 10, characterized in that, The hair dryer also includes a control component (700) fixed to at least one of the barrel body (121) and the sealing ring (122), and the control component (700) is electrically connected to the first airflow generating component (300), the second airflow generating component (400) and the heating component (500).

12. The hair dryer according to claim 11, characterized in that, The control component (700) is fixed to the cylinder body (121) and disposed near the sealing ring (122); And / or, at least a portion of the control component (700) is annular and disposed within the first air duct (103) surrounding the cylinder body (121).

13. The hair dryer according to claim 11, characterized in that, The control component (700) includes a circuit board (710) and an electronic control element (720) disposed on the circuit board (710). The circuit board (710) is at least partially annular and is disposed around the cylindrical body (121). The circuit board (710) is fixedly connected to at least one of the cylindrical body (121) and the sealing ring (122).

14. The hair dryer according to claim 10, characterized in that, The air duct assembly (100) further includes a first sealing layer (170) disposed between the sealing ring (122) and the inner wall of the outer cylinder (110); And / or, the air duct assembly (100) further includes an end cap (160) having the first air inlet (102), the end cap (160) covering the outer cylinder (110) and fixedly connected to the sealing ring (122) to form a flow channel (104), and the second air duct (1001) communicating with the first air inlet (102) through the flow channel (104).

15. The hair dryer according to claim 10, characterized in that, The outer wall of the cylinder body (121) is provided with a second guide surface (1201), which is located between the sealing ring (122) and the heating component (500) to guide the gas delivered from the third air duct (201) to the gas outlet (101).

16. The hair dryer according to claim 15, characterized in that, At least a portion of the second guide surface (1201) is disposed in the extending direction of the third air duct (201); And / or, at least a portion of the second guide surface (1201) is a frustum and / or annular arc surface to guide the gas to the outlet end (101).

17. The hair dryer according to claim 15, characterized in that, The air duct assembly (100) further includes at least two guide plates (180) spaced apart circumferentially along the duct body (121), the guide plates (180) being fixed to at least one of the duct body (121) and the outer duct (110), and the guide plates (180) being disposed between the second guide surface (1201) and the air outlet end (101).

18. The hair dryer according to claim 17, characterized in that, The guide plate (180) is integrally formed with the cylinder body (121); Alternatively, the guide plate (180) and the outer cylinder (110) are integrally formed.

19. The hair dryer according to claim 15, characterized in that, The inner wall of the cylinder body (121) is also provided with a third guide surface (1202), which is disposed between the first airflow generating component (300) and the heating component (500) to guide the gas generated by the first airflow generating component (300) to the heating component (500).

20. The hair dryer according to claim 19, characterized in that, The cylinder body (121) includes a first cylinder (1211), a guide cylinder (1212) having a second guide surface (1201) and a third guide surface (1202), and a second cylinder (1213) fixedly connected to the sealing ring (122). The first cylinder (1211) is used to accommodate the heating component (500) and communicates with the air outlet (101). One end of the guide cylinder (1212) is fixedly connected to the first cylinder (1211), and the other end of the guide cylinder (1212) is fixedly connected to the second cylinder (1213) to form the second air duct (1001). The first airflow generating component (300) is fixedly disposed in the second cylinder (1213).

21. The hair dryer according to claim 20, characterized in that, At least a portion of the third guide surface (1202) is a frustum and / or annular arc surface to guide the gas generated by the first airflow generating component (300) to the heating component (500); And / or, along the direction from the first airflow generating assembly (300) to the heating assembly (500), at least a portion of the outer diameter and inner diameter of the guide cylinder (1212) gradually increase; And / or, the outer diameter of the first cylinder (1211) is greater than the outer diameter of the second cylinder (1213); And / or, the cylinder body (121) further includes a third cylinder (1214) integrally formed with one end of the flow guide cylinder (1212), the third cylinder (1214) being fitted and sealed with the first cylinder (1211).

22. The hair dryer according to claim 21, characterized in that, The cylinder body (121) further includes a second sealing layer (1215) disposed between the first cylinder body (1211) and the third cylinder body (1214).

23. The hair dryer according to claim 1, characterized in that, The first airflow generating assembly (300) includes a first motor (310), a first fan blade (320) fixedly connected to the output shaft of the first motor (310), and a first drive plate (330) for driving the first motor (310). The first drive plate (330) is fixed to the end of the first motor (310) and is disposed in the extension direction of the second air duct (1001). And / or, the second airflow generating assembly (400) includes a second motor (410), a second fan blade (420) fixedly connected to the output shaft of the second motor (410), and a second drive plate (430) for driving the second motor (410), the second drive plate (430) being fixed to the end of the second motor (410) and disposed in the extension direction of the third air duct (201).

24. The hair dryer according to claim 1, characterized in that, The air outlet (101) further includes a third air outlet (1013), and the third air outlet (1013) is formed by a spaced arrangement between one end of the outer cylinder (110) and one end of the inner cylinder (120); And / or, the air volume generated by the first airflow generating component (300) is greater than the air volume generated by the second airflow generating component (400); And / or, the handle assembly (200) includes a first inner shell (210), a second inner shell (220), a ventilation hood (230), and a decorative outer shell (240). The first inner shell (210) and the second inner shell (220) are detachably connected to form the third air duct (201). The ventilation hood (230) is provided with a second air inlet and is connected to the first inner shell (210) and the second inner shell (220). The decorative outer shell (240) is sleeved on the outer side wall of the first inner shell (210) and the second inner shell (220) and is disposed between the ventilation hood (230) and the air duct assembly (100).

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