Hair drier with high air inlet efficiency

Abstract

The utility model discloses an air blower with high air inlet efficiency, which belongs to the field of household appliances, solves the problems of lower air inlet efficiency and higher noise caused by turbulent flow when air flow passes through a hub of a fan, and adopts the technical scheme that the air blower mainly comprises a machine body and a fan assembly, the machine body comprises an air inlet, an air outlet and an airflow channel communicating the air inlet with the air outlet, the fan assembly is arranged in the airflow channel and comprises a fan and a motor used for driving the fan to rotate, the fan comprises a hub and fan blades arranged on the hub, and an air guide cone is arranged at the air inlet end of the fan assembly. The conical surface of the air guide cone faces the air inlet so that air flow in the air flow channel can be guided to the fan blades. The air inlet structure is mainly used for smoothly guiding airflow into the fan blades, effectively improves the air inlet efficiency and reduces noise.

Description

Technical Field

[0001] The utility model relates to a household appliance, in particular to a hair dryer with high air intake efficiency. Background Art

[0002] The air inlet end of the blower assembly of the hair dryer has a low air intake efficiency due to the chaotic air flow. For this reason, in the prior art, utility model patent CN219345093U discloses a low-noise hair dryer, in which a honeycomb structure is set in the air duct, and invention patent CN116763053A discloses a noise reduction hair dryer, in which a noise reduction honeycomb mesh is added to the air inlet end of the motor. Although the honeycomb air guide structure can converge and rectify the airflow, reduce air turbulence, and improve the air intake efficiency. However, due to the large diameter of the fan hub, when the airflow passes through the fan hub, the airflow collides with the fan hub in large quantities, generating a large noise, and the airflow will make a large turn, causing energy loss, reducing the air intake efficiency. Utility Model Content

[0003] The purpose to be achieved by the utility model is to provide a hair dryer with high air intake efficiency, which solves the problem of low air intake efficiency and high noise caused by turbulence of air flow passing through the fan hub, and smoothly guides the air flow into the fan blades, effectively improving the air intake efficiency and reducing the generation of noise.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hair dryer with high air intake efficiency, comprising a body and a fan assembly, the body comprising an air inlet, an air outlet and an air flow channel connecting the air inlet and the air outlet, the fan assembly is arranged in the air flow channel, the fan assembly comprises a fan and a motor for driving the fan to rotate, the fan comprises a hub and fan blades arranged on the hub, the air inlet end of the fan assembly is provided with an air guide cone, the conical surface of the air guide cone faces the air inlet to guide the airflow in the air flow channel to the fan blades.

[0005] After adopting the above technical scheme, the utility model has the following advantages: an air guide cone is provided at the air inlet end of the fan assembly, and the conical surface of the air guide cone faces the air inlet to guide the airflow in the airflow channel to the fan blades, thereby guiding the airflow in the airflow channel, reducing the turbulence of the air at the air inlet end of the fan assembly, which is beneficial to reduce the contact with the hub, thereby reducing the airflow energy loss, improving the air intake efficiency, and also reducing the airflow impact and the noise generation. By guiding the airflow through the conical surface of the air guide cone, the airflow can also be introduced into the fan blades more smoothly, further reducing the noise generation, having a high-efficiency noise reduction effect, and greatly improving the user experience.

[0006] Furthermore, the conical surface of the air guide cone extends outward in an arc shape along the airflow direction in the airflow channel, so that the tangent direction of the arc extension direction of the conical surface tends to the airflow direction in the fan assembly along the airflow direction. The above technical solution is adopted to make the conical surface of the air guide cone have a certain wall attachment effect, and the airflow can move toward the fan blades along the arc conical surface, reducing the tendency of the airflow to diffuse outward, and as the airflow moves along the arc conical surface, the direction of the airflow gradually tends to the airflow direction in the fan assembly, reducing the direction deviation, so that the airflow can better correspond to the fan blade when leaving the arc conical surface, which is conducive to ensuring the air intake efficiency.

[0007] Furthermore, the air guide cone is a hollow structure, and a plurality of silencer holes communicating with the inner cavity of the air guide cone are provided on the conical surface of the air guide cone. By adopting the above technical solution, the noise generated in the air flow channel enters the hollow structure from the silencer holes, and the noise is reflected and absorbed in the hollow structure, and the noise pressure is released and attenuated, thereby greatly reducing the noise.

[0008] Furthermore, a first silencer is provided in the inner cavity of the air guide cone. Through the above technical solution, after the noise enters the inner cavity of the air guide cone, it will be reflected and absorbed between the air guide cone and the first silencer, further reducing the intensity of the noise.

[0009] Furthermore, the wind guide cone is arranged in the middle of the wheel hub so that the wind guide cone rotates with the fan. Through the above technical solution, the wind guide cone rotates with the fan, so that the wind guide cone can not only guide the airflow to the fan blades, but also drive part of the airflow to produce a certain deflection in the direction of fan rotation. The direction of the airflow after pre-deflection at a certain angle tends to the direction of the airflow after the fan cuts, thereby reducing the wind speed loss, and there is no need to set up a structure specifically for installing the wind guide cone.

[0010] Furthermore, it also includes a fixed ring and at least two air guides, the air guide cone and the fan are independently arranged, the air guides extend from the outer wall of the air guide cone to the inner wall of the fixed ring, so that the air guide cone is connected to the fixed ring. Through the above technical solution, multiple air guides are arranged, and the air guides extend from the outer wall of the air guide cone to the inner wall of the fixed ring, so that the air guide cone is more firmly connected, and the air guides can also guide the airflow, further reducing the phenomenon of turbulence of the airflow. If there are less than two air guides, the air guide cone is prone to swing under the action of the airflow.

[0011] Furthermore, the at least two air guides are provided with outwardly protruding windward surfaces facing the air inlet direction of the air flow channel. Through the above technical solution, the windward surfaces protrude outward, which reduces air resistance, further ensures air intake efficiency, and reduces the force of airflow on the air guides, which is conducive to reducing the load of the air guides, and the air guides are not easy to swing.

[0012] Furthermore, the air guide vane and the fan blade are inclined toward the same side or the opposite side along the circumference of the fan. By adopting the above-mentioned technical solution of inclining toward the same side, the air guide vane deflects the airflow along the inclination direction of the fan blade, making it easier for the airflow to pass through the fan blade, greatly increasing the air volume. At the same time, since the amount of air reaching the top of the fan is large and the pressure above is large, its squeezing force increases the air outlet speed of the hair dryer. By adopting the above-mentioned technical solution of inclining toward the opposite side, the air guide vane can pre-deflect the airflow by an angle, so that the air flow direction is consistent with the force direction, reducing the load on the fan blade, ensuring the service life of the fan blade, and also facilitating the fan blade to cut the airflow faster, further increasing the air intake.

[0013] Furthermore, a second silencer is provided on the outer periphery of the fixing ring, and the fixing ring is provided with a through hole connecting the inner and outer sides of the fixing ring; the wind guide cone is at least partially located inside the fixing ring, and at least part of the through holes on the fixing ring correspond to the conical surface of the wind guide cone along the radial direction of the fixing ring. With the above technical solution, after the noise enters the through hole, it will be reflected and absorbed between the wind guide cone and the second silencer, further reducing the intensity of the noise.

[0014] Furthermore, the diameter of the wheel hub is not less than the maximum diameter of the wind guide cone. The above technical solution ensures the air intake area, which is conducive to improving the air intake efficiency. If the diameter of the wheel hub is less than the maximum diameter of the wind guide cone, at least part of the fan blades will be blocked by the wind guide cone, reducing the air intake area and affecting the air intake efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of a hair dryer with high air intake efficiency in the utility model;

[0017] Figure 2 It is a cross-sectional view of a hair dryer with high air intake efficiency in the utility model;

[0018] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0019] Figure 4 It is a structural schematic diagram of the wind guide structure in the utility model;

[0020] Figure 5 This is a structural schematic diagram of an air guide structure in another embodiment of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure in which the air guide piece and the fan blade are inclined toward the same side along the circumference of the fan in the utility model;

[0022] Figure 7It is a schematic diagram of the structure in which the air guide piece and the fan blade of the utility model are inclined toward opposite sides along the circumference of the fan;

[0023] Figure 8 A cross-sectional view of a hair dryer with high air intake efficiency according to another embodiment of the present invention;

[0024] Fig. 9 For the utility model Figure 8 A magnified view of the structure at B in the middle;

[0025] Fig.10 This is a structural schematic diagram of an air guide structure in another embodiment of the present invention;

[0026] In the figure, 10, air cylinder; 11, air outlet; 20, handle; 21, air inlet; 30, air flow channel; 40, fan; 401, wheel hub; 402, fan blades; 41, motor; 50, air guide cone; 501, cone surface; 502, silencer hole; 51, fixing ring; 511, through hole; 52, air guide plate; 521, windward surface; 60, second silencer. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0029] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0030] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0032] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0033] like Figures 1 to 4 As shown, the utility model provides a hair dryer with high air intake efficiency, including a body and a fan assembly, the body including an air inlet 21, an air outlet 11 and an air flow channel 30 connecting the air inlet 21 and the air outlet 11, the fan assembly is arranged in the air flow channel 30, the fan assembly includes a fan 40 and a motor 41 for driving the fan 40 to rotate, the fan 40 includes a hub 401 and blades 402 arranged on the hub 401, and an air guide cone 50 is provided at the air inlet end of the fan assembly, and the conical surface of the air guide cone 50 faces the air inlet to guide the airflow in the air flow channel 30 to the blades 402.

[0034] With such a design, the wind guide cone 50 guides the airflow in the airflow channel 30, guides the airflow in the airflow channel 30 to the fan blades 402, reduces the turbulence of the air at the air inlet end of the fan assembly, and helps to reduce the contact with the hub 401, thereby reducing the airflow energy loss, improving the air intake efficiency, and also reducing the airflow impact and the noise generation. By guiding the airflow through the cone surface of the wind guide cone 50, the airflow can also be more smoothly introduced into the fan blades 402, further reducing the noise generation, having a highly efficient noise reduction effect, and greatly improving the user experience.

[0035] In one embodiment, the body includes a handle 20 and a wind tube 10, and an air flow channel 30 is provided in the handle 20 and the wind tube 10, the handle 20 is provided with an air inlet 21, and the wind tube 10 is provided with an air outlet 11, and the air inlet 21 is connected with the air outlet 11 through the air flow channel 30. It is understandable that in other embodiments of the utility model, the hair dryer may also be provided with an air flow channel in the handle and the wind tube, the handle and the wind tube are both provided with an air inlet, and the wind tube is provided with an air outlet, forming a double air inlet hair dryer with a larger air volume and a faster wind speed. Of course, the hair dryer may also be provided with an air flow channel only in the handle, and the air inlet and the air outlet are both provided on the handle. Of course, the hair dryer may also be provided with an air flow channel only in the wind tube, and the air inlet and the air outlet are both provided on the wind tube.

[0036] The wind guide cone 50 has a cone structure, and the wind guide cone 50 includes two embodiments, such as Figures 8 to 10 As shown, one is a cone structure and the other is a pyramid structure. Of course, the radial width contraction of the top of the wind guide cone 50 is not limited to being concentrated at one vertex. The top of the wind guide cone can be concentrated at a tip vertex, or it can be contracted to an arc surface or a plane. The concentration at a tip vertex is a preferred embodiment to reduce the obstruction to the airflow. Considering that the hub 401 of the fan 40 is circular and the blades 402 of the fan 40 surround the outer periphery of the hub 401, in one embodiment, the wind guide cone 50 is preferably a cone structure, so that the bottom surface of the wind guide cone 50 is circular, and the airflow guided by the conical surface of the wind guide cone 50 is guided from the periphery of the circular bottom surface of the wind guide cone, so that the airflow better corresponds to the blades 402 of the fan 40; further, in this embodiment, the conical surface of the wind guide cone 50 is uniformly arranged along the circumferential direction, and the top center of the wind guide cone and the bottom center are arranged coaxially, and the guiding effect of the wind guide cone 50 on the airflow is uniform in the circumferential direction, so that the wind introduced by the wind guide cone 50 to the blades 402 is more evenly distributed.

[0037] Since the airflow is directed outward when passing through the conical surface 501 of the linear air guide cone 50, it will have a tendency to move outward, causing the airflow to deviate from the fan blades 402, thereby affecting the air intake efficiency. For this reason, preferably, the conical surface 501 of the air guide cone 50 extends in an outwardly convex arc along the airflow flow direction in the airflow channel, so that the tangent direction of the arc extension direction of the conical surface tends to the airflow flow direction in the fan assembly along the airflow flow direction. Such a design enables the conical surface 501 of the air guide cone 50 to have a certain wall attachment effect, and the airflow can move along the curved conical surface 501 toward the fan blades 402, reducing the tendency of the airflow to diffuse outward, and as the airflow moves along the curved conical surface, the direction of the airflow changes with the change of the tangent direction of the curved conical surface along the flow direction of the airflow, so that the direction of the airflow gradually tends to the flow direction of the airflow in the fan assembly, reducing the direction deviation, and allowing the airflow to better correspond to entering the fan blades when leaving the curved conical surface, so that most of the airflow can enter the fan blades 402 after leaving the conical surface of the air guide cone 50, which is beneficial to ensuring the air intake efficiency.

[0038] Secondly, the wind guide cone 50 and the hub 401 are coaxially arranged, which is conducive to making the wind introduced by the wind guide cone 50 to the fan blades 402 more evenly distributed. Among them, the maximum diameter of the wind guide cone 50 is D1, and the diameter of the hub 401 is D2. If D2<D1, at least part of the fan blades 402 will be blocked by the wind guide cone 50, which will reduce the air intake area and affect the air intake efficiency. For this reason, preferably, the diameter of the hub 401 is not less than the maximum diameter of the wind guide cone 50. Such a design ensures the air intake area and is conducive to improving the air intake efficiency.

[0039] Regarding the arrangement of the air guide cone in the air flow channel, in one embodiment, the air guide cone is arranged in the middle of the wheel hub so that the air guide cone rotates with the fan. Through the above technical solution, the air guide cone rotates with the fan, so that the air guide cone can not only guide the airflow to the fan blades, but also drive part of the airflow to produce a certain deflection in the direction of fan rotation. The direction of the airflow after pre-deflection at a certain angle tends to the direction of the airflow after the fan cuts, thereby reducing the wind speed loss, and there is no need to set a structure specifically for installing the air guide cone, simplifying the structure. In this embodiment, the air guide cone can be integrally formed on the wheel hub, or it can be installed on the wheel hub.

[0040] Regarding the arrangement of the air guide cone in the air flow channel, in another embodiment, it further includes a fixed ring 51 and at least two air guide blades 52. The air guide cone and the fan are arranged independently of each other. The air guide blades 52 extend from the outer wall of the air guide cone 50 to the inner wall of the fixed ring 51, so that the air guide cone 50 is connected to the fixed ring 51. In this embodiment, the air guide cone, the air guide blades and the fixed ring together form an air guide structure. Since the airflow will exert a large force on the air guide structure during the flow process, if there is only one air guide blade 52, it is easy to cause uneven force on the air guide cone 50, causing the air guide cone 50 to swing. For this reason, preferably, four air guide blades are provided, so that the connection of the air guide cone 50 is more stable, and the air guide blades 52 can also guide the airflow, further reducing the phenomenon of turbulence in the airflow.

[0041] It is understandable that the air guide blades 52 may be provided in any suitable number, such as two, three, or five.

[0042] It should be noted that the air guide blades 52 are arranged in an array along the circumference of the air guide cone 50, which further makes the connection of the air guide cone 50 more stable. In addition, the fixing ring 51 can be connected to the inner wall of the air flow channel 30 through a connecting piece, or can be clamped and fixed by the inner wall of the air flow channel 30.

[0043] As the number of air guides 52 increases, the resistance to airflow will also increase. Therefore, at least two air guides 52 are provided with outwardly protruding windward surfaces 521 facing the air inlet direction of the airflow channel 30, including outwardly protruding arc surfaces, single inclined surfaces, and two inclined surfaces intersecting at an edge. With such a design, after the airflow contacts the windward surfaces 521 of the air guides 52, it will immediately pass over the windward surfaces 521 and continue to move, which reduces air resistance, further ensures air intake efficiency, and reduces the force of the airflow on the air guides 52, which is conducive to reducing the load of the air guides 52. The air guides 52 are not easy to swing, so that the air guide cone 50 is more stable.

[0044] like Figure 5 As shown, the air guide piece 52 is vertically arranged along the air flow direction in the air flow channel to reduce the resistance to the air flow.

[0045] It is understandable that in other embodiments of the present invention, the air guide blades 52 may also be arranged obliquely along the circumference of the fan 40, and the flow direction of the airflow is pre-deflected before the airflow enters the fan blades 402. Specifically, Figure 6 As shown, in one embodiment, the air guide piece 52 and the fan blade 402 are inclined toward the same side along the circumference of the fan 40. With such a design, the air guide piece 52 deflects the airflow toward the inclination direction of the fan blade 402, making it easier for the airflow to pass through the fan blade 402, greatly increasing the air volume. At the same time, since the air volume reaching the air outlet of the fan assembly is increased, the air pressure at the air outlet of the fan assembly is increased, thereby increasing the air outlet speed of the hair dryer.

[0046] Of course, the air guide piece 52 and the fan blade 402 are inclined toward the same side along the circumference of the fan 40, which increases the air pressure at the outlet of the fan assembly, and also increases the load of the fan 40. The motor 41 needs to increase the power significantly to obtain the rated speed, which is not conducive to the service life of the motor 41. Figure 7 As shown, in another embodiment, the air guide piece 52 and the fan blade 402 are inclined toward opposite sides along the circumference of the fan 40. With such a design, the air guide piece 52 pre-deflects the airflow toward the opposite side of the inclination direction of the fan blade 402, so that the airflow is inclined at a certain angle before entering the fan blade and being cut by the fan blade, so that the airflow direction before and after cutting is roughly consistent, reducing wind speed loss, thereby increasing wind speed, wherein part of the airflow is blocked under the fan 40 and does not pass through the fan blade 402, so when the rated speed is reached, the load of the fan 40 is relatively low, and the power of the motor 41 is also relatively low, which is beneficial to ensuring the service life of the motor 41, and is also beneficial to accelerating the cutting of the airflow by the fan blade 402, further increasing the air intake.

[0047] In one embodiment, the conical surface of the air guide cone 50 is a continuous, complete, closed surface with a large contact area with the airflow, which facilitates the airflow to flow more smoothly to the fan blades 402. However, since the external air flows rapidly in the airflow channel 30 under the suction of the fan 40, the high-speed airflow hits the conical surface 501 of the air guide cone 50, generating turbulence and aggravating the noise. Therefore, further improvements are made. In another embodiment, the wind guide cone 50 is a hollow structure, and a plurality of silencer holes 502 connected to the inner cavity of the wind guide cone 50 are provided on the conical surface 501 of the wind guide cone 50. Such a design reduces the contact area between the conical surface of the wind guide cone 50 and the airflow, reduces the generation of turbulence, and thus reduces the noise generated by the airflow hitting the wind guide cone 50, as well as the noise caused by turbulence. At the same time, it can also enable the noise generated near the wind guide cone 50 in the airflow channel 30 to enter the hollow structure through the silencer holes 502, and the noise is reflected and absorbed in the hollow structure, and its noise pressure is released and attenuated, thereby greatly reducing the noise. Further, this embodiment is improved, and a first silencer is provided in the inner cavity of the wind guide cone 50. Such a design allows the noise to be reflected and absorbed between the wind guide cone 50 and the first silencer after entering the inner cavity of the wind guide cone 50, thereby further reducing the intensity of the noise.

[0048] On the other hand, the high-speed fan 40 will also generate relatively large noise and transmit it into the air guide structure, so that in the space between the air guide cone 50 and the fixed ring 51 in the air guide structure, there is both noise generated near the air guide cone 50 and noise transmitted by the fan 40. These noises will be transmitted outward. In order to further reduce the noise, in one embodiment, a second silencer 60 is provided on the outer periphery of the fixed ring 51, and the fixed ring 51 is provided with a through hole 511 connecting the inner and outer sides of the fixed ring 51; the air guide cone 50 is at least partially located in the fixed ring 51, and at least part of the through holes 511 on the fixed ring 51 corresponds to the cone surface 501 of the air guide cone 50 along the radial direction of the fixed ring 51. With such a design, the noise in the air guide structure is trapped between the air guide cone 50 and the fixed ring 51. The noise is continuously reflected between the air guide cone 50 and the fixed ring 51. When the noise is reflected to the air guide cone 50, it can enter the inner cavity of the air guide cone through the silencer hole 502 and contact the first silencer. When the noise is reflected to the fixed ring 51, it can reach the outside of the fixed ring through the through hole 511 and contact the second silencer 60. In the process of continuous reflection of the noise, the noise is gradually absorbed, thereby further reducing the intensity of the noise.

[0049] It should be noted that the first silencer and the second silencer 60 can be made of sound-absorbing cotton or silicone material.

[0050] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A hair dryer with high air intake efficiency, comprising a body and a fan assembly, wherein the body comprises an air inlet, an air outlet and an air flow channel connecting the air inlet and the air outlet, the fan assembly is arranged in the air flow channel, the fan assembly comprises a fan and a motor for driving the fan to rotate, the fan comprises a hub and blades arranged on the hub, and is characterized in that: The air inlet end of the fan assembly is provided with an air guide cone, and the conical surface of the air guide cone faces the air inlet to guide the airflow in the air flow channel to the fan blades.

2. A hair dryer with high air intake efficiency according to claim 1, characterized in that: The conical surface of the air guide cone extends outward in an arc shape along the airflow direction in the airflow channel, so that the tangent direction of the arc extension direction of the conical surface tends to the airflow direction in the fan assembly along the airflow direction.

3. A hair dryer with high air intake efficiency according to claim 1, characterized in that: The air guide cone is a hollow structure, and a plurality of silencer holes communicating with the inner cavity of the air guide cone are provided on the cone surface of the air guide cone.

4. A hair dryer with high air intake efficiency according to claim 3, characterized in that: A first silencer is arranged in the inner cavity of the air guide cone.

5. A hair dryer with high air intake efficiency according to claim 1, characterized in that: The air guide cone is arranged at the middle part of the hub so that the air guide cone rotates with the fan.

6. A hair dryer with high air intake efficiency according to claim 1, characterized in that: It also includes a fixing ring and at least two air guide plates. The air guide cone and the fan are independently arranged. The air guide plates extend from the outer wall of the air guide cone to the inner wall of the fixing ring to connect the air guide cone with the fixing ring.

7. A hair dryer with high air intake efficiency according to claim 6, characterized in that: The at least two air guide plates are provided with windward surfaces protruding outwards in the air inlet direction of the air flow channel.

8. A hair dryer with high air intake efficiency according to claim 6, characterized in that: The air guide piece and the fan blade are inclined toward the same side or opposite sides along the circumference of the fan.

9. A hair dryer with high air intake efficiency according to claim 6, characterized in that: A second silencer is provided on the outer periphery of the fixing ring, and the fixing ring is provided with a through hole connecting the inner and outer sides of the fixing ring; the wind guide cone is at least partially located in the fixing ring, and at least part of the through holes on the fixing ring corresponds to the conical surface of the wind guide cone along the radial direction of the fixing ring.

10. A hair dryer with high air intake efficiency according to claim 1, characterized in that: The diameter of the hub is not less than the maximum diameter of the wind guide cone.

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