Hair dryer

Abstract

A hair dryer is provided, including: a hair dryer body, where an air duct disposed in an axial direction of the hair dryer body is provided inside the hair dryer body; an air inlet structure including an air inlet region arranged at a rear end of the hair dryer body, where a lateral air intake through hole communicated with the air duct is provided on the air inlet region; and an air guide hood fixedly or detachably connected to a rear end of the hair dryer body to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air intake through hole into an axial air flow in the axial direction of the hair dryer body, to change a direction of noise in the air inlet region.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of hair dryers, and specifically, to a hair dryer.BACKGROUND

[0002] As a multifunctional appliance, a hair dryer is not only widely applied to hair drying and shaping, but also plays an important role in laboratories, physical therapy rooms, industrial production, graphic design, and other fields, for local drying, heating, physical therapy, and the like. In a conventional hair dryer, a motor is generally used to drive a rotor, thus driving a blower blade to rotate, to construct an air duct through which air is drawn in from an air inlet and then blown out from an air outlet. However, the air inlet of the conventional hair dryer is generally disposed at a tail portion of an outer shell and adopts a mode of air intake in a single direction. This design has many drawbacks. If an air inlet in the tail portion is designed too large, the hairs of a user easily get entangled. This poses a safety hazard. If air enters only from a small hole, both an air inlet volume and an air outlet volume are greatly restrained. In addition, once the air inlet is blocked by cotton wool, textile fabrics, or other similar materials, the service life of the motor will be greatly shortened. Meanwhile, the temperature, volume, and stability of the outgoing air will be seriously affected, and significant noise is likely to be generated. In extreme cases, internal components may even be burned out, causing economic losses and safety risks to users.

[0003] To overcome the foregoing drawbacks of the conventional hair dryer, a hair dryer with lateral air intake has emerged, such as a Chinese patent of “a hair dryer” No. CN202420839163.8 and a Chinese patent of “a hair dryer with lateral air intake” No. CN202321893270.0. A lateral air intake design is achieved by forming a lateral air intake through hole (i.e. the air inlet) in a rear end of the hair dryer, to cause an air flow to enter an interior of the hair dryer from a side surface. This innovative design solves, to some extents, the drawbacks of a conventional rear air intake mode, such as avoiding a risk of hair entanglement, an increase in a potential air intake volume, and the like.

[0004] However, the lateral air intake design presents a significant shortcoming in noise control: a noise propagation direction has not been properly guided. During use, noise is directly propagated toward a user, especially toward the ears. Due to the extreme sensitivity of the ears to sounds, this manner of directly (or relatively directly) propagating noise toward the human body greatly amplifies the user's perception of noise and seriously interferes with the user experience. Given the high sensitivity of the ears to sound, such direct (or substantially direct) noise propagation toward the body greatly amplifies the user's perception of a noise level and seriously compromises the user experience. When the hair dryer with lateral air intake is used in an environment that is highly sensitive to noise, such as a household nighttime resting or working places, the noise problem of the hair dryer becomes particularly prominent.

[0005] At present, most of noise reduction measures for the hair dryer with lateral air intake are limited to adding a sound absorption material into an interior of the hair dryer or soundproofing a motor part of the hair dryer. However, these measures are only passive measures after noise is generated, and no effective intervention is performed on a starting end from which the air flow enters the interior of the hair dryer. Since an air flow direction and a noise propagation direction of incoming air are not optimized, it has always been difficult to fundamentally solve the noise problem caused by lateral air intake.SUMMARY

[0006] To overcome the drawbacks described above, the present disclosure aims to provide a technical solution that can solve the above problems.

[0007] A hair dryer includes: a hair dryer body, an air inlet structure, and an air guide hood.

[0008] An air duct disposed in an axial direction of the hair dryer body is provided inside the hair dryer body.

[0009] The air inlet structure includes an air inlet region arranged at a rear end of the hair dryer body. A lateral air intake through hole communicated with the air duct is provided on the air inlet region.

[0010] The air guide hood is fixedly or detachably connected to a rear end of the hair dryer body to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air intake through hole into an axial air flow in the axial direction of the hair dryer body, to change a direction of noise in the air inlet region.

[0011] In a further solution of the present disclosure, the air guide hood is arranged around an outer side of the air inlet region and is in spaced fit with the air inlet region, to enclose and form an air inlet passage, extending in the axial direction of the hair dryer body, between the air guide hood and the air inlet region.

[0012] In a further solution of the present disclosure, the air guide hood overlaps the air inlet region in the axial direction of the hair dryer body.

[0013] In a further solution of the present disclosure, the air inlet passage annularly surrounds the air inlet region. An inner side of the air inlet passage is communicated with the lateral air intake through hole of the air inlet region. The air inlet passage has an opening in an outer side to allow external air to flow into the air duct inside the hair dryer body from the lateral air intake through hole via the air inlet passage.

[0014] In a further solution of the present disclosure, the air guide hood is made of a transparent material.

[0015] In a further solution of the present disclosure, a bracket is mounted at the rear end of the hair dryer body. The air inlet region is arranged around a periphery of a rear end of the bracket. An air inlet mesh is disposed between the air guide hood and the bracket. The air inlet mesh covers the lateral air intake through hole of the air inlet region. The air guide hood is in detachable fit with the bracket.

[0016] In a further solution of the present disclosure, a display module is mounted on the bracket. The display module is located in a center position of the rear end of the hair dryer body / a center position of the rear end of the bracket.

[0017] In a further solution of the present disclosure, the air guide hood is provided with a first connection portion corresponding to the bracket in a circumferential direction of the air guide hood, and the bracket is provided with a first fitting portion corresponding to the first connection portion.

[0018] The air guide hood is further provided with a second connection portion corresponding to the air inlet mesh in the circumferential direction of the air guide hood, and the air inlet mesh is provided with a second fitting portion corresponding to the second connection portion.

[0019] Connection and fit between the air guide hood and the bracket, and connection and fit between the air guide hood and the air inlet mesh are synchronously implemented by fit between the first connection portion and the first fitting portion and fit between the second connection portion and the second fitting portion.

[0020] In a further solution of the present disclosure, at least one noise attenuation mesh acting on the air duct and / or the air inlet region is disposed within the bracket.

[0021] In a further solution of the present disclosure, the noise attenuation mesh includes: a first noise attenuation mesh, a second noise attenuation mesh, and a third noise attenuation mesh.

[0022] The first noise attenuation mesh is a barrel-shaped or ringlike structure and is disposed in a circumferential direction of an outer side of the bracket and opposite to the air inlet region.

[0023] The second noise attenuation mesh is a barrel-shaped or ringlike structure and is arranged around a middle region of the bracket and opposite to the air inlet region.

[0024] The third noise attenuation mesh is planar and is disposed in the axial direction of the hair dryer body and located at one end of the bracket close to the air duct inside the hair dryer.

[0025] In a further solution of the present disclosure, the hair dryer body is further provided with a prompting component. The prompting component includes a power supply assembly and an identification assembly that are electrically connected to each other. The power supply assembly supplies operation power to the identification assembly. The identification assembly sends anti-scald prompting information.

[0026] In a further solution of the present disclosure, the power supply assembly is configured as a farad capacitor or an energy storage battery.

[0027] In a further solution of the present disclosure, the identification assembly is mounted on an outer ring of a side of the hair dryer body close to an air outlet.

[0028] The identification assembly is configured as a light-emitting diode (LED), an LED ring, or an LED strip.

[0029] In a further solution of the present disclosure, the hair dryer body is further provided with a temperature sensor. The temperature sensor is electrically connected to the power supply assembly, and the identification assembly sends the anti-scald prompting information based on a temperature value sensed by the temperature sensor.

[0030] In a further solution of the present disclosure, the LED, the LED ring, or the LED strip is set to be in an intermittent-switching flashing mode. An interval of intermittent switching of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor.

[0031] Alternatively, the LED, the LED ring, or the LED strip is set to be in a steady-on mode with gradual brightness reduction, and brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor, or adjusted based on surplus energy of the power supply assembly.

[0032] In a further solution of the present disclosure, the identification assembly is configured as a display module. The power supply assembly supplies operation power to the display module to cause the display module to send the anti-scald prompting information.

[0033] Compared with the prior art, the present disclosure has the beneficial effects below:

[0034] By changing a propagation direction of noise in the air inlet region, the noise is prevented from directly acting on sensitive parts of a user, such as the ears, and the perception of the user to noise is effectively reduced. It significantly enhances the comfort level during use. The hair dryer is particularly applicable to nighttime resting or working places having strict requirements on noise.

[0035] The additional aspects and advantages of the present disclosure will be set forth in part in the description below, parts of which will become apparent from the description below, or will be understood by the practice of the present disclosure.BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To describe the technical solutions in the embodiments of the present disclosure or in the related art more clearly, the following briefly introduces the accompanying drawings for describing the embodiments or the related art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from the accompanying drawings without creative efforts.

[0037] FIG. 1 is a schematic diagram of a structure of the present disclosure;

[0038] FIG. 2 is a schematic diagram of a structure with an air guide hood removed in the present disclosure;

[0039] FIG. 3 is a schematic cross-sectional diagram of a structure of a barrel in the present disclosure;

[0040] FIG. 4 is a schematic exploded diagram of a structure of a barrel in the present disclosure;

[0041] FIG. 5 is a schematic diagram of a structure of an air guide hood in the present disclosure;

[0042] FIG. 6 is a schematic diagram of a structure of a first noise attenuation mesh being on a bracket in the present disclosure;

[0043] FIG. 7 is a schematic diagram of a structure of a second noise attenuation mesh being on a bracket in the present disclosure;

[0044] FIG. 8 is a schematic diagram of an air intake state when an air guide hood is added in the present disclosure;

[0045] FIG. 9 is a schematic diagram of an air intake state when an air guide hood is removed in the present disclosure;

[0046] FIG. 10 is a schematic cross-sectional diagram of a structure of the present disclosure;

[0047] FIG. 11 is a schematic diagram of a structure of an LED ring in the present disclosure;

[0048] FIG. 12 is a schematic diagram of a structure of an LED in the present disclosure; and

[0049] FIG. 13 is a schematic diagram of a structure of an LED strip in the present disclosure.

[0050] Reference numerals and names in the accompanying drawings are as follows: 1: hair dryer body; 2: air duct; 3: air inlet region; 4: lateral air intake through hole; 5: air guide hood; 6: air inlet passage; 7: opening; 8: bracket; 9: air inlet mesh; 10: display module; 11: first connection portion; 12: first fitting portion; 13: second connection portion; 14: second fitting portion; 15: first noise attenuation mesh; 16: second noise attenuation mesh; 17: third noise attenuation mesh; 18: barrel; 19: handle; 20: power supply assembly; 21: identification assembly; 22: LED; 23: LED ring; 24: LED strip; 25: temperature sensor; 26: heating component; and 27: air outlet.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure rather than all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the disclosed embodiments without creative efforts shall fall within the protection scope of the present disclosure.

[0052] Referring to FIG. 1 to FIG. 13, in an embodiment of the present disclosure, a hair dryer includes: a hair dryer body 1, an air inlet structure, and an air guide hood 5.

[0053] An air duct 2 disposed in an axial direction of the hair dryer body 1 is provided inside the hair dryer body 1.

[0054] The air inlet structure includes an air inlet region 3 arranged at a rear end of the hair dryer body 1. A lateral air intake through hole 4 communicated with the air duct 2 is provided on the air inlet region 3.

[0055] The air guide hood 5 is fixedly or detachably connected to a rear end of the hair dryer body 1 to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air inlet through hole 4 into an axial air flow in the axial direction of the hair dryer body 1, to change a direction of noise in the air inlet region 3.

[0056] In the technical solution of the present disclosure, the hair dryer body 1 includes a barrel 18 and a handle 19 connected to the barrel 18. The air duct 2 extending in an axial direction of the barrel 18 is disposed within the barrel 18. When the hair dryer is in operation, an air flow enters from an air inlet end, flows along the air duct 2, and finally blows out from an air outlet end. The air inlet region 3 of the air inlet structure surrounds a periphery of a rear end of the barrel 18, and is uniformly distributed with the lateral air intake through hole 4 vertically communicated with the air duct 2. After the hair dryer is started, external air is induced by a negative pressure inside the hair dryer body 1, and quickly rushes to an interior of the hair dryer through these lateral air intake through holes 4 in a radial flow pattern and / or a near-radial flow pattern.

[0057] The entire air guide hood 5 is cylindrical, and a diameter of an opening 7 in its rear end diameter is adapted to a diameter of the periphery of the rear end of the barrel 18 of the hair dryer body 1, so that the air guide hood 5 can be firmly connected to the rear end of the barrel 18 in various manners such as tight fitting, magnetic attraction, and snap connection,. This can achieve stable fixed connection and perform a convenient removal operation if necessary. When the external air entering from the lateral air intake through hole 4 is in contact with the air guide hood 5, due to blockage by the cylindrical structure of the air guide hood 5, the air cannot continue to flow along the original radial path and / or near-radial path. Meanwhile, a guiding effect achieved by the opening 7 of the air guide hood 5 that faces the axial direction of the hair dryer body 1 allows the air to flow along the opening 7 in a front end of the air guide hood 5, that is, in the axial direction of the hair dryer body 1. In this way, an original lateral air intake mode of the hair dryer is successfully converted into a rear air intake mode. As an air intake manner changes, a propagation direction of noise also changes correspondingly to no longer directly face a user, thus effectively reducing the perception of the user to noise.

[0058] Furthermore, from the perspective of aerodynamics, the addition of the air guide hood 5 has a significant effect on improving a turbulence phenomenon. Specifically, in a conventional lateral air intake design, a radial air flow and / or near-radial air flow directly rushes into the air duct 2, causing a sudden change in the direction of the air flow, which easily causes a disordered turbulence inside the air duct 2. This not only affects the stability of air discharging, but also generates additional noise due to disorderly collision of the air flow. The air guide hood 5 can cause the air flow to adjust its direction gradually inside the air guide hood 5 along a circumferential path of an inner wall before the air flow enters the air duct 2, and to an extent, flow into the air duct 2 in a smooth and orderly state. This orderly air flowing greatly reduces turbulence, thus making the air flow pass through the air duct 2 more smoothly and enhancing the stability and uniformity of air discharging.

[0059] The propagation direction of noise is closely related to the direction of the air flow. In the conventional lateral air intake design, noise is propagated directly toward a user, especially toward the ears. This will seriously affect the user experience. Under the help of the air guide hood 5, this hair dryer is designed to effectively guide the direction of the air flow and change the propagation direction of noise, thus causing the noise to be away from sensitive parts of the user. The design concept of actively changing the directions of the air flow and the noise from a starting end from which the air flow enters the hair dryer is fundamentally different from a conventional manner for passively reducing noise only after the noise is generated. The design concept can solve (mitigate) a noise problem caused by lateral air intake from the root, while ensuring stable and efficient implementation of air intake and air discharging of the hair dryer, thus creating a quiet and comfortable environment for a user and greatly enhancing user satisfaction.

[0060] In addition, the air guide hood 5 forms a physical barrier in the air inlet region 3. When a user uses the hair dryer, the hairs are close to the air inlet region 3. The presence of the air guide hood 5 keeps the hairs a distance from an actual air inlet. Even in a case of lateral or rear air intake, the hairs are also difficultly in contact with the air inlet, thus avoiding a risk of hair entanglement to a large extent.

[0061] In one implementation, the opening 7 of the air guide hood 5 expands outward like a horn. This can effectively expand an air intake range. When the hair dryer generates a negative pressure during operation, the structure of the flared opening 7 enlarges a contact area with the external air, so that more air can be induced under the action of the negative pressure. Compared with an ordinary straight tube type air inlet, the flared opening 7 can guide air from a larger spatial range, so that an air intake volume is significantly increased. For example, under the same negative pressure condition, the ordinary air inlet may induce air of [X] cubic meters, but after the air guide hood 5 with the flared opening 7 is used, the air intake volume can be increased to [X+Y] cubic meters. This greatly enhances the air intake efficiency of the hair dryer.

[0062] In one implementation, an interior of the air guide hood 5 has a curved surface to guide the air flow to flow stably and orderly. The curve design conforms to the aerodynamic principle. After the air enters the air guide hood 5, the curved surface can guide and rectify the air flow. The curved surface inside the air guide hood 5 can smoothly guide the air flow to the lateral air intake through hole 4, to ensure that the air flow enters the air inlet region 3 in a more stable axial flowing state and / or near-axial flowing state. This helps to avoid the hairs from being entangled into the air inlet region 3. The stable air flow cannot generate a turbulent region with strong suction force on the hairs, so that it further ensures high air intake efficiency, and the hair dryer can continuously and stably blow out strong and uniform wind, to enhance the overall performance.

[0063] In summary, the present disclosure can implement:

[0064] Reduce noise interference: By changing a propagation direction of noise in the air inlet region 3, the noise is prevented from directly acting on sensitive parts of a user, such as the ears, and the perception of the user to noise is effectively reduced. It significantly enhances the comfort level during use. The hair dryer is particularly applicable to nighttime resting or working places having strict requirements on noise.

[0065] Control a noise source: Unlike a passive noise reduction measure such as adding a sound absorption material and soundproofing a motor after noise is generated, this design performs optimization at the beginning when the air flow enters the hair dryer. By adjusting the direction of the incoming air flow, the noise problem caused by lateral air intake is solved from the root.

[0066] Continue the advantages of lateral air intake: While solving the noise problem, the advantages of the lateral air intake design such as avoiding hair entanglement and increasing the air intake volume are retained, so that the hair dryer has more complete performance, meets diverse needs of a user, and enhances the overall competitiveness of the product.

[0067] Facilitate maintenance and use: The air guide hood 5 can be fixedly or detachably connected to the rear end of the hair dryer body 1. The detachable connection facilitates cleaning, replacement, or other operations performed by a user on the air guide hood 5 if needed, thus enhance the convenience of product use and maintenance.

[0068] In the embodiment of the present disclosure, the air guide hood 5 is arranged around an outer side of the air inlet region 3 and is in spaced fit with the air inlet region 3, to enclose and form an air inlet passage 6, extending in the axial direction of the hair dryer body 1, between the air guide hood 5 and the air inlet region 3.

[0069] When the hair dryer is activated, the external air first enters the air inlet passage 6. Due to the blocking effect of the air guide hood 5, the air cannot directly pass through the passage radially and can only flow in an axial direction of the air inlet passage 6. Then, the air enters the air duct 2 of the hair dryer body 1 through the lateral air intake through hole 4 on the air inlet region 3. In this way, the air that could have entered in a disorderly radial manner is constrained within the air inlet passage 6 to be gathered and adjusted in an axial flowing manner, and gradually enters the air duct 2 through the lateral air intake through hole 4, thus implementing effective conversion from lateral air intake to rear air intake. This design utilizes the axial guidance of the air inlet passage 6 to assist the air guide hood 5 in better controlling the direction of the air flow, thus ensuring the orderliness of air intake.

[0070] In one implementation, a cross-sectional area of the air inlet passage 6 can be changed by adjusting a spacing distance between the air guide hood 5 and the air inlet region 3. When the spacing distance increases, the cross-sectional area of the air inlet passage 6 also increases, so that more air can enter the air inlet passage 6 per unit time. Conversely, if the spacing distance decreases, the air intake volume decreases. Therefore, in the product design process, an engineer can accurately adjust the spacing distance between the air guide hood 5 and the air inlet region 3 based on an ideal air intake volume index of the hair dryer. If a larger air intake volume is desired, the spacing distance will be increased to enlarge the cross-sectional area of the air inlet passage 6, thus causing more air to enter the air inlet passage 6 per unit time. If a smaller air intake volume is desired, the spacing distance will be decreased to reduce the cross-sectional area of the air inlet passage 6, thus controlling the volume of incoming air. Furthermore, due to the detachable design of the air guide hood 5, a user can easily adjust the spacing distance between the air guide hood 5 and the air inlet region 3 by replacing air guide hoods 5 with different thicknesses. If a larger air intake volume is desired, a thinner air guide hood 5 can be used for replacement to increase the spacing distance and enlarge the cross-sectional area of the air inlet passage 6, thus causing more air to enter the air inlet passage 6 per unit time. If a smaller air intake volume is desired, a thicker air guide hood 5 can be used for replacement to decrease the spacing distance to reduce the cross-sectional area of the air inlet passage 6, thus controlling the volume of incoming air.

[0071] In the embodiment of the present disclosure, the air guide hood 5 overlaps the air inlet region 3 in the axial direction of the hair dryer body 1.

[0072] It can be understood that there is a projection overlap / position coverage relationship between the air guide hood 5 and the air inlet region 3 in the axial direction of the hair dryer body 1.

[0073] The operation of the hair dryer generates the negative pressure to induce the external air. The air guide hood 5 overlaps the air inlet region 3 in the axial direction, thus forming the axial air inlet passage 6. The external air enters the air inlet passage 6 under the action of the negative pressure, but due to the overlapping structure, the external air can only flow in the axial direction. In this way, the air flow that originally radially enters the air inlet region 3 and easily generates noise which directly faces a user is forced to flow axially. Before reaching the lateral air intake through hole 4, the direction of the air flow is stable, thus reducing turbulence caused by a sudden change in the direction and reducing the noise. Meanwhile, the axial flowing of the air flow changes the propagation direction of noise, so that the noise no longer directly faces the user. This successfully converts the original lateral air intake mode of the hair dryer into the rear air intake mode, implements an objective of noise reduction by changing the direction of the noise in the air inlet region 3. This also creates conditions for causing the air flow to steadily enter the air duct 2 and enhancing the stability of air discharging.

[0074] In the embodiment of the present disclosure, the air inlet passage 6 annularly surrounds the air inlet region 3. An inner side of the air inlet passage 6 is communicated with the lateral air intake through hole 4 of the air inlet region 3. The air inlet passage 6 has an opening 7 in an outer side to allow external air to flow into the air duct 2 inside the hair dryer body 1 from the lateral air intake through hole 4 via the air inlet passage 6.

[0075] After the hair dryer is activated, a negative pressure environment is formed inside, and the air inlet passage 6 annularly surrounds the air inlet region 3. The annular configuration causes a large amount of external air to rush into the air duct from the opening 7 in the outer side. Since the inner side of the air inlet passage 6 is communicated with the lateral air intake through hole 4 of the air inlet region 3, the incoming air is orderly gathered in the air inlet passage 6 and flows along the air inlet passage 6. Under the constraint of the annular air inlet passage 6, the air cannot be diffused freely and can only flow along its path toward the lateral air intake through hole 4 and then into the air duct 2 inside the hair dryer body 1. This process standardizes the originally disordered air entering the air inlet region 3 into a stable axial flow, thus implementing the conversion from the lateral air intake to the rear air intake, changing the direction of the air flow at the beginning of air intake of the hair dryer, and affecting the propagation direction of noise.

[0076] In the embodiment of the present disclosure, the air guide hood 5 is made of a transparent material.

[0077] The transparent material brings a unique appearance style to the hair dryer. Compared with a conventional non-transparent material, the transparent air guide hood 5 makes the product look more exquisite and fashionable, thus meeting needs of consumers for aesthetics and personalization of the product. This design can enhance both the attractiveness of the product in the market and the competitiveness of the product.

[0078] Meanwhile, the transparent air guide hood 5 allows a user to check whether the air inlet passage 6 and the air inlet region 3 are blocked at any time. When it is found that dust, hairs, and other debris are accumulated, the user can clean them in a timely manner to avoid performance degradation of or damage to the hair dryer caused by poor air intake. This prolongs the service life of the hair dryer.

[0079] In the embodiment of the present disclosure, a bracket 8 is mounted at the rear end of the hair dryer body 1. The air inlet region 3 is arranged around a periphery of a rear end of the bracket 8. An air inlet mesh 9 is disposed between the air guide hood 5 and the bracket 8. The air inlet mesh 9 covers the lateral air intake through hole 4 of the air inlet region 3. The air guide hood 5 is in detachable fit with the bracket 8.

[0080] The bracket 8 plays a crucial role in supporting the air inlet region 3, the air inlet mesh 9, and the air guide hood 5. The air inlet region 3 is arranged around the periphery of the rear end of the bracket 8. The air inlet mesh 9 is disposed between the air guide hood 5 and the bracket 8. The air inlet mesh 9 completely covers the lateral air intake through hole 4 of the air inlet region 3. When the blower is activated, a negative pressure is generated inside it. Under the negative pressure, external air flows toward the air inlet mesh 9 through a gap between the air guide hood 5 and the bracket 8 (since the air inlet mesh 9 is on the outer side of the air inlet region 3, it is also the gap between the air guide hood 5 and the air inlet mesh 9). The air inlet mesh 9 then achieves a filtering function to intercept the dust, the hairs, and relatively large impurities outside, to prevent them from entering the lateral air intake through hole 4, thereby ensuring that the air entering the air duct 2 inside the hair dryer is relatively clean. Moreover, the air guide hood 5 and the bracket 8 are designed to be detachable. This means that when the air inlet mesh 9 needs to be cleaned or the air inlet region 3 needs to be maintained, a user can easily remove the air guide hood 5 and carry out subsequent operations.

[0081] In the embodiment of the present disclosure, a display module 10 is mounted on the bracket 8. The display module 10 is located in a center position of the rear end of the hair dryer body 1 / a center position of the rear end of the bracket 8.

[0082] The display module 10 is mounted on the bracket 8 and is located in the center position of the rear end of the hair dryer body 1 or the bracket 8. The center position of the rear end of the bracket 8 can be regarded as the center position of the rear end of the hair dryer body 1, that is, a center position of the rear end of the barrel 18, to provide a user with a convenient and intuitive information interaction interface. From the perspective of engineering design, the bracket 8 as a relatively stable and flat structure for the rear end of the hair dryer, provides a reliable support for the mounting of the display module 10. The selection of the center position fully considers the user's perspective, so that whether the user operates the hair dryer in a hand or places the hair dryer on a table for use, the display module 10 can be seen in the most direct line of sight angle. Through this design, the display module 10 can timely and clearly show key operating parameters of the hair dryer to the user, such as a current wind speed gear, a temperature setting, surplus power (if the hair dryer is rechargeable), an air intake state, a working mode, and other information, to help the user to quickly understand a real-time state of the hair dryer and perform corresponding adjustment operations.

[0083] In the embodiment of the present disclosure, the air guide hood 5 is provided with a first connection portion 11 corresponding to the bracket 8 in a circumferential direction of the air guide hood 5, and the bracket 8 is provided with a first fitting portion 12 corresponding to the first connection portion 11.

[0084] The air guide hood 5 is further provided with a second connection portion 13 corresponding to the air inlet mesh 9 in the circumferential direction of the air guide hood 5, and the air inlet mesh 9 is provided with a second fitting portion 14 corresponding to the second connection portion 13.

[0085] Connection and fit between the air guide hood 5 and the bracket 8, and connection and fit between the air guide hood 5 and the air inlet mesh 9 are synchronously implemented by fit between the first connection portion 11 and the first fitting portion 12 and fit between the second connection portion 13 and the second fitting portion 14.

[0086] In the circumferential direction, the air guide hood 5 is provided with the first connection portion 11 which has a variety of forms. For example, the first connection portion 11 can be a plurality of elastic snaps uniformly distributed in the circumferential direction of the air guide hood 5. Correspondingly, the first fitting portion 12 on the bracket 8 can be fitting snap-in slots. During mounting, the air guide hood 5 approaches the bracket 8, and the snaps are aligned with the snap-in slots and are slightly pressed. The snaps will be snapped into the snap-in slots by their own elastic deformations, thus completing connection between them. The plurality of snaps are uniformly distributed to ensure a uniform force distribution in the circumferential direction. The first connection portion 11 and the first fitting portion 12 can also be corresponding magnetic components. They are not limited herein.

[0087] The second connection portion 13 arranged in the circumferential direction of the air guide hood 5 interacts with the second fitting portion 14 in a circumferential direction of the air inlet mesh 9. Assuming that the second connection portion 13 includes hooks on a circumferential edge of the air guide hood 5, and the second fitting portion 14 includes hook holes in corresponding positions on a circumferential edge of the air inlet mesh 9. During mounting, the air guide hood 5 approaches the air inlet mesh 9, and the hooks are sequentially hooked into the hook holes to implement the connection between them in the circumferential direction. Alternatively, the second connection portion 13 is a groove in the circumferential direction of the air guide hood 5, and the second fitting portion 14 is a protrusion in the circumferential direction of the air inlet mesh 9. During mounting, the protrusion can be embedded into the groove to complete the connection.

[0088] In a mounting operation, the air inlet mesh 9 and the air guide hood 5 are first assembled, and then the air guide hood 5 with the air inlet mesh 9 is connected to the bracket 8, so as to synchronously implement the stable connection and fit between the air guide hood 5 and the bracket 8, as well as the air inlet mesh 9. This design ensures that the air guide hood 5 remains stable during the operation of the hair dryer, optimizes the sealing property of an air inlet system, and guides the air flow to flow along a given path, pass through the gap between the air guide hood 5 and the bracket 8, be filtered through the air inlet mesh 9, and orderly enter the lateral air intake through hole 4 of the air inlet region 3. Meanwhile, the design in which the air inlet mesh 9 and the air guide hood 5 can be removed and mounted together implements very convenient cleaning and maintenance on the air inlet mesh 9. A user can regularly remove the air guide hood 5 with the air inlet mesh 9, and clear away the dust, the hairs, and other impurities on the air inlet mesh 9 to keep the smoothness of the air inlet system, thereby enhancing the performance and service life of the hair dryer.

[0089] In the embodiment of the present disclosure, at least one noise attenuation mesh acting on the air duct 2 and / or the air inlet region 3 is disposed within the bracket 8.

[0090] The noise attenuation mesh includes: a first noise attenuation mesh 15, a second noise attenuation mesh 16, and a third noise attenuation mesh 17.

[0091] The first noise attenuation mesh 15 is a barrel-shaped or ringlike structure and is disposed in a circumferential direction of an outer side of the bracket 8 and opposite to the air inlet region 3.

[0092] The second noise attenuation mesh 16 is a barrel-shaped or ringlike structure and is arranged around a middle region of the bracket 8 and opposite to the air inlet region 3.

[0093] The third noise attenuation mesh 17 is planar and is disposed in the axial direction of the hair dryer body 1 and located at one end of the bracket 8 close to the air duct 2 inside the hair dryer.

[0094] When the hair dryer is in operation, an air flow flows through the air duct 2 and the air inlet region 3. This easily generates noise. A noise attenuation mesh is disposed within the bracket 8 to effectively attenuate noise in different positions and different manners.

[0095] As a starting end from which the air flow enters the air duct, the air inlet region 3 is a region for intensive noise generation. With its porous structure or sound absorption material, the first noise attenuation mesh 15 can convert a high-frequency noise part generated by the air flow impacting the air inlet region 3 into energy in other forms such as thermal energy when the external air rushes into the air inlet region 3, thereby initially reducing the noise intensity. The air flow treated by the first noise attenuation mesh 15 still contains noise, and the second noise attenuation mesh 16 plays a secondary denoising role herein. It can not only absorb newly added noise during continuous flowing of the air flow in the air inlet passage 6, but also further attenuate the noise that the first noise attenuation mesh 15 has not completely eliminated, thus enhancing noise control. In this case, when the air flow is about to enter the air duct 2, the third noise attenuation mesh 17 can further attenuate residual noise in the air flow before the air flow enters the air duct 2, thus preventing, to an extent, these noises from being amplified due to the resonance effect of the air duct 2 after the air flow enters the air duct 2. Based on reducing the direct impact of noise on a user by changing the direction of noise through the air guide hood 5, this hair dryer has added three noise attenuation meshes to bring a better noise reduction effect. That is, the noise attenuation meshes with different structures and positions are respectively arranged at the starting end of the air inlet region 3, in the middle of an air inlet path, and an inlet end of the air duct 2, and cooperate with each other to comprehensively attenuate noise related to the air inlet region 3 and the air duct 2 in a plurality of processes, thereby implementing a better noise reduction function of this hair dryer.

[0096] In the existing technology, when the hair dryer is directly turned off or suddenly powered off during operation in a hot air mode, there is a common problem of scalding because of a high temperature at an air outlet part. To heat the blown air, a heating component of the hair dryer is usually mounted on an inner side wall of the body near the air outlet part. While heating the air, the heating component also transfers heat to the side wall of the body near the air outlet part, thus causing the temperature near the air outlet to rise. In an air blowing process, due to the continuous blowing of a high-temperature air flow, a user is usually not in direct contact with the air outlet part, so there is no risk of scalding.

[0097] However, after the hair dryer is suddenly turned off or powered off, a blower motor inside the hair dryer immediately stops rotating, and no more air is blown out from the air outlet part. In this case, a heating wire still has a large amount of high residual heat that cannot be dissipated in a timely manner, and may even exacerbate high temperature accumulation at the air outlet part. Since no air is blown out, the user is easily in contact with the air outlet part when placing, storing, or transferring the hair dryer. This poses a risk of scalding the user.

[0098] To this end, the present disclosure further adds a prompting component based on the foregoing air guide and noise reduction structure, to provide a power failure and anti-scald prompt for the risk of high temperature generated by the heating component without affecting the original air guide and noise reduction effect. Meanwhile, the prompting component also has a continuous warning ability after power failure, and cooperates with the noise reduction structure of the present disclosure to enhance the comprehensive use safety of the hair dryer.

[0099] In the embodiment of the present disclosure, a heating component 26 for heating the air flow in the air duct 2 to output hot air is arranged inside the hair dryer body 1. The hair dryer body 1 is further provided with the prompting component. The prompting component includes a power supply assembly 20 and an identification assembly 21 that are electrically connected to each other. The power supply assembly 20 supplies operation power to the identification assembly 21, and the identification assembly 21 is configured to send anti-scald prompting information.

[0100] The power supply assembly 20 may be configured as a farad capacitor or an energy storage battery. When the power supply assembly 20 is the farad capacitor, it has the characteristic of fast charging and discharging, which can supply instantaneous stable operation power to the identification assembly 21 after the hair dryer is powered off, and keep continuous running of the prompt function for short time. When the power supply assembly 20 is the energy storage battery, it has higher storage capacity, which can support long-term stable operation of the identification assembly 21 and meet anti-scald prompting requirements of different use scenarios. Both the farad capacitor and the energy storage battery can supply power independently without relying on a power supply of a hair dryer main unit. Even if the main unit is powered off or the heating component 26 stops working, the prompt function can still be run normally, to avoid the risk of scalding caused by high-temperature waste heat after power failure.

[0101] The identification assembly 21 is mounted on an outer ring of a side wall of the hair dryer body 1 close to an air outlet 27, and the identification assembly 21 is specifically configured as an LED 22, an LED ring 23, or an LED strip 24. In this embodiment, the LED 22, the LED ring 23, or the LED strip 24 is set to be in an intermittent-switching flashing mode. An interval of intermittent switching of the LED, the LED ring, or the LED strip is adjusted based on a temperature value, or set to be in a steady-on mode with gradual brightness reduction, and brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value, or adjusted based on surplus energy of the power supply assembly 20.

[0102] To achieve the foregoing effect of adjusting a prompt state based on the temperature value, the hair dryer body 1 is further provided with a temperature sensor 25. The temperature sensor 25 is electrically connected to the power supply assembly 20 and is disposed at a position corresponding to the heating component 26 or the air outlet 27, for real-time sensing of a temperature value of the heating component 26 or the air outlet 27. The identification assembly 21 sends the anti-scald prompt information based on the temperature value sensed by the temperature sensor 25.

[0103] A micro control unit can also be disposed within the hair dryer body 1. The micro control unit is configured to: receive the temperature value sensed by the temperature sensor 25 and control the brightness of the LED 22 by using a control algorithm, so that a brightness reduction curve matches a temperature drop curve. Specifically, when the temperature sensor 25 senses a relatively high temperature value, the interval of intermittent switching of the LED 22, the LED ring 23, or the LED strip 24 is shortened, a flashing frequency is increased, and a prompting effect is more outstanding, making it easier for a user to intuitively perceive the risk of high temperature. When the temperature value decreases, a flashing interval is correspondingly prolonged, and the prompt stops until the temperature drops to a safe range. Alternatively, the LED 22, the LED ring 23, or the LED strip 24 is set to be in the steady-on mode with gradual brightness reduction. The brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor 25. A higher temperature reflects higher the brightness and a more intuitive prompt effect. The brightness can also be adjusted based on the surplus power of the power supply assembly 20. When the surplus power of the power supply assembly 20 is high, the brightness is relatively high. As the surplus power decreases, the brightness gradually decreases until the LED is completely extinguished. This implements both an anti-scald prompt function and a battery level prompt function.

[0104] In addition, the identification assembly 21 can also be set as a display module 10. The display module 10 can be adapted to the structure of the display module 10 arranged at the rear end of the hair dryer body 1 of the present disclosure. The power supply assembly 20 supplies operating power to the display module 10, so that the display module 10 sends an anti-scald prompt. It can intuitively display the temperature value and anti-scald prompting text of the heating component 26 or the air outlet 27, and form a unified interactive system with the display module 10 at the rear end, thus further enhancing the convenience of use.

[0105] For those skilled in the art, it is apparent that the present disclosure is not limited to the details of the exemplary embodiments mentioned above, and can be implemented in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, in any perspective, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present disclosure is limited by the accompanying claims rather than the above description. Therefore, all changes within the meaning and scope of the equivalent conditions of the claims within the present disclosure.

Examples

Embodiment Construction

[0051]The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure rather than all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the disclosed embodiments without creative efforts shall fall within the protection scope of the present disclosure.

[0052]Referring to FIG. 1 to FIG. 13, in an embodiment of the present disclosure, a hair dryer includes: a hair dryer body 1, an air inlet structure, and an air guide hood 5.

[0053]An air duct 2 disposed in an axial direction of the hair dryer body 1 is provided inside the hair dryer body 1.

[0054]The air inlet structure includes an air inlet region 3 arranged at a rear end of the hair dryer body 1. A lateral air intake through hole 4 communicated with the air ...

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of hair dryers, and specifically, to a hair dryer.BACKGROUND

[0002] As a multifunctional appliance, a hair dryer is not only widely applied to hair drying and shaping, but also plays an important role in laboratories, physical therapy rooms, industrial production, graphic design, and other fields, for local drying, heating, physical therapy, and the like. In a conventional hair dryer, a motor is generally used to drive a rotor, thus driving a blower blade to rotate, to construct an air duct through which air is drawn in from an air inlet and then blown out from an air outlet. However, the air inlet of the conventional hair dryer is generally disposed at a tail portion of an outer shell and adopts a mode of air intake in a single direction. This design has many drawbacks. If an air inlet in the tail portion is designed too large, the hairs of a user easily get entangled. This poses a safety hazard. If air enters only from a small hole, both an air inlet volume and an air outlet volume are greatly restrained. In addition, once the air inlet is blocked by cotton wool, textile fabrics, or other similar materials, the service life of the motor will be greatly shortened. Meanwhile, the temperature, volume, and stability of the outgoing air will be seriously affected, and significant noise is likely to be generated. In extreme cases, internal components may even be burned out, causing economic losses and safety risks to users.

[0003] To overcome the foregoing drawbacks of the conventional hair dryer, a hair dryer with lateral air intake has emerged, such as a Chinese patent of “a hair dryer” No. CN202420839163.8 and a Chinese patent of “a hair dryer with lateral air intake” No. CN202321893270.0. A lateral air intake design is achieved by forming a lateral air intake through hole (i.e. the air inlet) in a rear end of the hair dryer, to cause an air flow to enter an interior of the hair dryer from a side surface. This innovative design solves, to some extents, the drawbacks of a conventional rear air intake mode, such as avoiding a risk of hair entanglement, an increase in a potential air intake volume, and the like.

[0004] However, the lateral air intake design presents a significant shortcoming in noise control: a noise propagation direction has not been properly guided. During use, noise is directly propagated toward a user, especially toward the ears. Due to the extreme sensitivity of the ears to sounds, this manner of directly (or relatively directly) propagating noise toward the human body greatly amplifies the user's perception of noise and seriously interferes with the user experience. Given the high sensitivity of the ears to sound, such direct (or substantially direct) noise propagation toward the body greatly amplifies the user's perception of a noise level and seriously compromises the user experience. When the hair dryer with lateral air intake is used in an environment that is highly sensitive to noise, such as a household nighttime resting or working places, the noise problem of the hair dryer becomes particularly prominent.

[0005] At present, most of noise reduction measures for the hair dryer with lateral air intake are limited to adding a sound absorption material into an interior of the hair dryer or soundproofing a motor part of the hair dryer. However, these measures are only passive measures after noise is generated, and no effective intervention is performed on a starting end from which the air flow enters the interior of the hair dryer. Since an air flow direction and a noise propagation direction of incoming air are not optimized, it has always been difficult to fundamentally solve the noise problem caused by lateral air intake.SUMMARY

[0006] To overcome the drawbacks described above, the present disclosure aims to provide a technical solution that can solve the above problems.

[0007] A hair dryer includes: a hair dryer body, an air inlet structure, and an air guide hood.

[0008] An air duct disposed in an axial direction of the hair dryer body is provided inside the hair dryer body.

[0009] The air inlet structure includes an air inlet region arranged at a rear end of the hair dryer body. A lateral air intake through hole communicated with the air duct is provided on the air inlet region.

[0010] The air guide hood is fixedly or detachably connected to a rear end of the hair dryer body to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air intake through hole into an axial air flow in the axial direction of the hair dryer body, to change a direction of noise in the air inlet region.

[0011] In a further solution of the present disclosure, the air guide hood is arranged around an outer side of the air inlet region and is in spaced fit with the air inlet region, to enclose and form an air inlet passage, extending in the axial direction of the hair dryer body, between the air guide hood and the air inlet region.

[0012] In a further solution of the present disclosure, the air guide hood overlaps the air inlet region in the axial direction of the hair dryer body.

[0013] In a further solution of the present disclosure, the air inlet passage annularly surrounds the air inlet region. An inner side of the air inlet passage is communicated with the lateral air intake through hole of the air inlet region. The air inlet passage has an opening in an outer side to allow external air to flow into the air duct inside the hair dryer body from the lateral air intake through hole via the air inlet passage.

[0014] In a further solution of the present disclosure, the air guide hood is made of a transparent material.

[0015] In a further solution of the present disclosure, a bracket is mounted at the rear end of the hair dryer body. The air inlet region is arranged around a periphery of a rear end of the bracket. An air inlet mesh is disposed between the air guide hood and the bracket. The air inlet mesh covers the lateral air intake through hole of the air inlet region. The air guide hood is in detachable fit with the bracket.

[0016] In a further solution of the present disclosure, a display module is mounted on the bracket. The display module is located in a center position of the rear end of the hair dryer body / a center position of the rear end of the bracket.

[0017] In a further solution of the present disclosure, the air guide hood is provided with a first connection portion corresponding to the bracket in a circumferential direction of the air guide hood, and the bracket is provided with a first fitting portion corresponding to the first connection portion.

[0018] The air guide hood is further provided with a second connection portion corresponding to the air inlet mesh in the circumferential direction of the air guide hood, and the air inlet mesh is provided with a second fitting portion corresponding to the second connection portion.

[0019] Connection and fit between the air guide hood and the bracket, and connection and fit between the air guide hood and the air inlet mesh are synchronously implemented by fit between the first connection portion and the first fitting portion and fit between the second connection portion and the second fitting portion.

[0020] In a further solution of the present disclosure, at least one noise attenuation mesh acting on the air duct and / or the air inlet region is disposed within the bracket.

[0021] In a further solution of the present disclosure, the noise attenuation mesh includes: a first noise attenuation mesh, a second noise attenuation mesh, and a third noise attenuation mesh.

[0022] The first noise attenuation mesh is a barrel-shaped or ringlike structure and is disposed in a circumferential direction of an outer side of the bracket and opposite to the air inlet region.

[0023] The second noise attenuation mesh is a barrel-shaped or ringlike structure and is arranged around a middle region of the bracket and opposite to the air inlet region.

[0024] The third noise attenuation mesh is planar and is disposed in the axial direction of the hair dryer body and located at one end of the bracket close to the air duct inside the hair dryer.

[0025] In a further solution of the present disclosure, the hair dryer body is further provided with a prompting component. The prompting component includes a power supply assembly and an identification assembly that are electrically connected to each other. The power supply assembly supplies operation power to the identification assembly. The identification assembly sends anti-scald prompting information.

[0026] In a further solution of the present disclosure, the power supply assembly is configured as a farad capacitor or an energy storage battery.

[0027] In a further solution of the present disclosure, the identification assembly is mounted on an outer ring of a side of the hair dryer body close to an air outlet.

[0028] The identification assembly is configured as a light-emitting diode (LED), an LED ring, or an LED strip.

[0029] In a further solution of the present disclosure, the hair dryer body is further provided with a temperature sensor. The temperature sensor is electrically connected to the power supply assembly, and the identification assembly sends the anti-scald prompting information based on a temperature value sensed by the temperature sensor.

[0030] In a further solution of the present disclosure, the LED, the LED ring, or the LED strip is set to be in an intermittent-switching flashing mode. An interval of intermittent switching of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor.

[0031] Alternatively, the LED, the LED ring, or the LED strip is set to be in a steady-on mode with gradual brightness reduction, and brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor, or adjusted based on surplus energy of the power supply assembly.

[0032] In a further solution of the present disclosure, the identification assembly is configured as a display module. The power supply assembly supplies operation power to the display module to cause the display module to send the anti-scald prompting information.

[0033] Compared with the prior art, the present disclosure has the beneficial effects below:

[0034] By changing a propagation direction of noise in the air inlet region, the noise is prevented from directly acting on sensitive parts of a user, such as the ears, and the perception of the user to noise is effectively reduced. It significantly enhances the comfort level during use. The hair dryer is particularly applicable to nighttime resting or working places having strict requirements on noise.

[0035] The additional aspects and advantages of the present disclosure will be set forth in part in the description below, parts of which will become apparent from the description below, or will be understood by the practice of the present disclosure.BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To describe the technical solutions in the embodiments of the present disclosure or in the related art more clearly, the following briefly introduces the accompanying drawings for describing the embodiments or the related art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from the accompanying drawings without creative efforts.

[0037] FIG. 1 is a schematic diagram of a structure of the present disclosure;

[0038] FIG. 2 is a schematic diagram of a structure with an air guide hood removed in the present disclosure;

[0039] FIG. 3 is a schematic cross-sectional diagram of a structure of a barrel in the present disclosure;

[0040] FIG. 4 is a schematic exploded diagram of a structure of a barrel in the present disclosure;

[0041] FIG. 5 is a schematic diagram of a structure of an air guide hood in the present disclosure;

[0042] FIG. 6 is a schematic diagram of a structure of a first noise attenuation mesh being on a bracket in the present disclosure;

[0043] FIG. 7 is a schematic diagram of a structure of a second noise attenuation mesh being on a bracket in the present disclosure;

[0044] FIG. 8 is a schematic diagram of an air intake state when an air guide hood is added in the present disclosure;

[0045] FIG. 9 is a schematic diagram of an air intake state when an air guide hood is removed in the present disclosure;

[0046] FIG. 10 is a schematic cross-sectional diagram of a structure of the present disclosure;

[0047] FIG. 11 is a schematic diagram of a structure of an LED ring in the present disclosure;

[0048] FIG. 12 is a schematic diagram of a structure of an LED in the present disclosure; and

[0049] FIG. 13 is a schematic diagram of a structure of an LED strip in the present disclosure.

[0050] Reference numerals and names in the accompanying drawings are as follows: 1: hair dryer body; 2: air duct; 3: air inlet region; 4: lateral air intake through hole; 5: air guide hood; 6: air inlet passage; 7: opening; 8: bracket; 9: air inlet mesh; 10: display module; 11: first connection portion; 12: first fitting portion; 13: second connection portion; 14: second fitting portion; 15: first noise attenuation mesh; 16: second noise attenuation mesh; 17: third noise attenuation mesh; 18: barrel; 19: handle; 20: power supply assembly; 21: identification assembly; 22: LED; 23: LED ring; 24: LED strip; 25: temperature sensor; 26: heating component; and 27: air outlet.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure rather than all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the disclosed embodiments without creative efforts shall fall within the protection scope of the present disclosure.

[0052] Referring to FIG. 1 to FIG. 13, in an embodiment of the present disclosure, a hair dryer includes: a hair dryer body 1, an air inlet structure, and an air guide hood 5.

[0053] An air duct 2 disposed in an axial direction of the hair dryer body 1 is provided inside the hair dryer body 1.

[0054] The air inlet structure includes an air inlet region 3 arranged at a rear end of the hair dryer body 1. A lateral air intake through hole 4 communicated with the air duct 2 is provided on the air inlet region 3.

[0055] The air guide hood 5 is fixedly or detachably connected to a rear end of the hair dryer body 1 to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air inlet through hole 4 into an axial air flow in the axial direction of the hair dryer body 1, to change a direction of noise in the air inlet region 3.

[0056] In the technical solution of the present disclosure, the hair dryer body 1 includes a barrel 18 and a handle 19 connected to the barrel 18. The air duct 2 extending in an axial direction of the barrel 18 is disposed within the barrel 18. When the hair dryer is in operation, an air flow enters from an air inlet end, flows along the air duct 2, and finally blows out from an air outlet end. The air inlet region 3 of the air inlet structure surrounds a periphery of a rear end of the barrel 18, and is uniformly distributed with the lateral air intake through hole 4 vertically communicated with the air duct 2. After the hair dryer is started, external air is induced by a negative pressure inside the hair dryer body 1, and quickly rushes to an interior of the hair dryer through these lateral air intake through holes 4 in a radial flow pattern and / or a near-radial flow pattern.

[0057] The entire air guide hood 5 is cylindrical, and a diameter of an opening 7 in its rear end diameter is adapted to a diameter of the periphery of the rear end of the barrel 18 of the hair dryer body 1, so that the air guide hood 5 can be firmly connected to the rear end of the barrel 18 in various manners such as tight fitting, magnetic attraction, and snap connection,. This can achieve stable fixed connection and perform a convenient removal operation if necessary. When the external air entering from the lateral air intake through hole 4 is in contact with the air guide hood 5, due to blockage by the cylindrical structure of the air guide hood 5, the air cannot continue to flow along the original radial path and / or near-radial path. Meanwhile, a guiding effect achieved by the opening 7 of the air guide hood 5 that faces the axial direction of the hair dryer body 1 allows the air to flow along the opening 7 in a front end of the air guide hood 5, that is, in the axial direction of the hair dryer body 1. In this way, an original lateral air intake mode of the hair dryer is successfully converted into a rear air intake mode. As an air intake manner changes, a propagation direction of noise also changes correspondingly to no longer directly face a user, thus effectively reducing the perception of the user to noise.

[0058] Furthermore, from the perspective of aerodynamics, the addition of the air guide hood 5 has a significant effect on improving a turbulence phenomenon. Specifically, in a conventional lateral air intake design, a radial air flow and / or near-radial air flow directly rushes into the air duct 2, causing a sudden change in the direction of the air flow, which easily causes a disordered turbulence inside the air duct 2. This not only affects the stability of air discharging, but also generates additional noise due to disorderly collision of the air flow. The air guide hood 5 can cause the air flow to adjust its direction gradually inside the air guide hood 5 along a circumferential path of an inner wall before the air flow enters the air duct 2, and to an extent, flow into the air duct 2 in a smooth and orderly state. This orderly air flowing greatly reduces turbulence, thus making the air flow pass through the air duct 2 more smoothly and enhancing the stability and uniformity of air discharging.

[0059] The propagation direction of noise is closely related to the direction of the air flow. In the conventional lateral air intake design, noise is propagated directly toward a user, especially toward the ears. This will seriously affect the user experience. Under the help of the air guide hood 5, this hair dryer is designed to effectively guide the direction of the air flow and change the propagation direction of noise, thus causing the noise to be away from sensitive parts of the user. The design concept of actively changing the directions of the air flow and the noise from a starting end from which the air flow enters the hair dryer is fundamentally different from a conventional manner for passively reducing noise only after the noise is generated. The design concept can solve (mitigate) a noise problem caused by lateral air intake from the root, while ensuring stable and efficient implementation of air intake and air discharging of the hair dryer, thus creating a quiet and comfortable environment for a user and greatly enhancing user satisfaction.

[0060] In addition, the air guide hood 5 forms a physical barrier in the air inlet region 3. When a user uses the hair dryer, the hairs are close to the air inlet region 3. The presence of the air guide hood 5 keeps the hairs a distance from an actual air inlet. Even in a case of lateral or rear air intake, the hairs are also difficultly in contact with the air inlet, thus avoiding a risk of hair entanglement to a large extent.

[0061] In one implementation, the opening 7 of the air guide hood 5 expands outward like a horn. This can effectively expand an air intake range. When the hair dryer generates a negative pressure during operation, the structure of the flared opening 7 enlarges a contact area with the external air, so that more air can be induced under the action of the negative pressure. Compared with an ordinary straight tube type air inlet, the flared opening 7 can guide air from a larger spatial range, so that an air intake volume is significantly increased. For example, under the same negative pressure condition, the ordinary air inlet may induce air of [X] cubic meters, but after the air guide hood 5 with the flared opening 7 is used, the air intake volume can be increased to [X+Y] cubic meters. This greatly enhances the air intake efficiency of the hair dryer.

[0062] In one implementation, an interior of the air guide hood 5 has a curved surface to guide the air flow to flow stably and orderly. The curve design conforms to the aerodynamic principle. After the air enters the air guide hood 5, the curved surface can guide and rectify the air flow. The curved surface inside the air guide hood 5 can smoothly guide the air flow to the lateral air intake through hole 4, to ensure that the air flow enters the air inlet region 3 in a more stable axial flowing state and / or near-axial flowing state. This helps to avoid the hairs from being entangled into the air inlet region 3. The stable air flow cannot generate a turbulent region with strong suction force on the hairs, so that it further ensures high air intake efficiency, and the hair dryer can continuously and stably blow out strong and uniform wind, to enhance the overall performance.

[0063] In summary, the present disclosure can implement:

[0064] Reduce noise interference: By changing a propagation direction of noise in the air inlet region 3, the noise is prevented from directly acting on sensitive parts of a user, such as the ears, and the perception of the user to noise is effectively reduced. It significantly enhances the comfort level during use. The hair dryer is particularly applicable to nighttime resting or working places having strict requirements on noise.

[0065] Control a noise source: Unlike a passive noise reduction measure such as adding a sound absorption material and soundproofing a motor after noise is generated, this design performs optimization at the beginning when the air flow enters the hair dryer. By adjusting the direction of the incoming air flow, the noise problem caused by lateral air intake is solved from the root.

[0066] Continue the advantages of lateral air intake: While solving the noise problem, the advantages of the lateral air intake design such as avoiding hair entanglement and increasing the air intake volume are retained, so that the hair dryer has more complete performance, meets diverse needs of a user, and enhances the overall competitiveness of the product.

[0067] Facilitate maintenance and use: The air guide hood 5 can be fixedly or detachably connected to the rear end of the hair dryer body 1. The detachable connection facilitates cleaning, replacement, or other operations performed by a user on the air guide hood 5 if needed, thus enhance the convenience of product use and maintenance.

[0068] In the embodiment of the present disclosure, the air guide hood 5 is arranged around an outer side of the air inlet region 3 and is in spaced fit with the air inlet region 3, to enclose and form an air inlet passage 6, extending in the axial direction of the hair dryer body 1, between the air guide hood 5 and the air inlet region 3.

[0069] When the hair dryer is activated, the external air first enters the air inlet passage 6. Due to the blocking effect of the air guide hood 5, the air cannot directly pass through the passage radially and can only flow in an axial direction of the air inlet passage 6. Then, the air enters the air duct 2 of the hair dryer body 1 through the lateral air intake through hole 4 on the air inlet region 3. In this way, the air that could have entered in a disorderly radial manner is constrained within the air inlet passage 6 to be gathered and adjusted in an axial flowing manner, and gradually enters the air duct 2 through the lateral air intake through hole 4, thus implementing effective conversion from lateral air intake to rear air intake. This design utilizes the axial guidance of the air inlet passage 6 to assist the air guide hood 5 in better controlling the direction of the air flow, thus ensuring the orderliness of air intake.

[0070] In one implementation, a cross-sectional area of the air inlet passage 6 can be changed by adjusting a spacing distance between the air guide hood 5 and the air inlet region 3. When the spacing distance increases, the cross-sectional area of the air inlet passage 6 also increases, so that more air can enter the air inlet passage 6 per unit time. Conversely, if the spacing distance decreases, the air intake volume decreases. Therefore, in the product design process, an engineer can accurately adjust the spacing distance between the air guide hood 5 and the air inlet region 3 based on an ideal air intake volume index of the hair dryer. If a larger air intake volume is desired, the spacing distance will be increased to enlarge the cross-sectional area of the air inlet passage 6, thus causing more air to enter the air inlet passage 6 per unit time. If a smaller air intake volume is desired, the spacing distance will be decreased to reduce the cross-sectional area of the air inlet passage 6, thus controlling the volume of incoming air. Furthermore, due to the detachable design of the air guide hood 5, a user can easily adjust the spacing distance between the air guide hood 5 and the air inlet region 3 by replacing air guide hoods 5 with different thicknesses. If a larger air intake volume is desired, a thinner air guide hood 5 can be used for replacement to increase the spacing distance and enlarge the cross-sectional area of the air inlet passage 6, thus causing more air to enter the air inlet passage 6 per unit time. If a smaller air intake volume is desired, a thicker air guide hood 5 can be used for replacement to decrease the spacing distance to reduce the cross-sectional area of the air inlet passage 6, thus controlling the volume of incoming air.

[0071] In the embodiment of the present disclosure, the air guide hood 5 overlaps the air inlet region 3 in the axial direction of the hair dryer body 1.

[0072] It can be understood that there is a projection overlap / position coverage relationship between the air guide hood 5 and the air inlet region 3 in the axial direction of the hair dryer body 1.

[0073] The operation of the hair dryer generates the negative pressure to induce the external air. The air guide hood 5 overlaps the air inlet region 3 in the axial direction, thus forming the axial air inlet passage 6. The external air enters the air inlet passage 6 under the action of the negative pressure, but due to the overlapping structure, the external air can only flow in the axial direction. In this way, the air flow that originally radially enters the air inlet region 3 and easily generates noise which directly faces a user is forced to flow axially. Before reaching the lateral air intake through hole 4, the direction of the air flow is stable, thus reducing turbulence caused by a sudden change in the direction and reducing the noise. Meanwhile, the axial flowing of the air flow changes the propagation direction of noise, so that the noise no longer directly faces the user. This successfully converts the original lateral air intake mode of the hair dryer into the rear air intake mode, implements an objective of noise reduction by changing the direction of the noise in the air inlet region 3. This also creates conditions for causing the air flow to steadily enter the air duct 2 and enhancing the stability of air discharging.

[0074] In the embodiment of the present disclosure, the air inlet passage 6 annularly surrounds the air inlet region 3. An inner side of the air inlet passage 6 is communicated with the lateral air intake through hole 4 of the air inlet region 3. The air inlet passage 6 has an opening 7 in an outer side to allow external air to flow into the air duct 2 inside the hair dryer body 1 from the lateral air intake through hole 4 via the air inlet passage 6.

[0075] After the hair dryer is activated, a negative pressure environment is formed inside, and the air inlet passage 6 annularly surrounds the air inlet region 3. The annular configuration causes a large amount of external air to rush into the air duct from the opening 7 in the outer side. Since the inner side of the air inlet passage 6 is communicated with the lateral air intake through hole 4 of the air inlet region 3, the incoming air is orderly gathered in the air inlet passage 6 and flows along the air inlet passage 6. Under the constraint of the annular air inlet passage 6, the air cannot be diffused freely and can only flow along its path toward the lateral air intake through hole 4 and then into the air duct 2 inside the hair dryer body 1. This process standardizes the originally disordered air entering the air inlet region 3 into a stable axial flow, thus implementing the conversion from the lateral air intake to the rear air intake, changing the direction of the air flow at the beginning of air intake of the hair dryer, and affecting the propagation direction of noise.

[0076] In the embodiment of the present disclosure, the air guide hood 5 is made of a transparent material.

[0077] The transparent material brings a unique appearance style to the hair dryer. Compared with a conventional non-transparent material, the transparent air guide hood 5 makes the product look more exquisite and fashionable, thus meeting needs of consumers for aesthetics and personalization of the product. This design can enhance both the attractiveness of the product in the market and the competitiveness of the product.

[0078] Meanwhile, the transparent air guide hood 5 allows a user to check whether the air inlet passage 6 and the air inlet region 3 are blocked at any time. When it is found that dust, hairs, and other debris are accumulated, the user can clean them in a timely manner to avoid performance degradation of or damage to the hair dryer caused by poor air intake. This prolongs the service life of the hair dryer.

[0079] In the embodiment of the present disclosure, a bracket 8 is mounted at the rear end of the hair dryer body 1. The air inlet region 3 is arranged around a periphery of a rear end of the bracket 8. An air inlet mesh 9 is disposed between the air guide hood 5 and the bracket 8. The air inlet mesh 9 covers the lateral air intake through hole 4 of the air inlet region 3. The air guide hood 5 is in detachable fit with the bracket 8.

[0080] The bracket 8 plays a crucial role in supporting the air inlet region 3, the air inlet mesh 9, and the air guide hood 5. The air inlet region 3 is arranged around the periphery of the rear end of the bracket 8. The air inlet mesh 9 is disposed between the air guide hood 5 and the bracket 8. The air inlet mesh 9 completely covers the lateral air intake through hole 4 of the air inlet region 3. When the blower is activated, a negative pressure is generated inside it. Under the negative pressure, external air flows toward the air inlet mesh 9 through a gap between the air guide hood 5 and the bracket 8 (since the air inlet mesh 9 is on the outer side of the air inlet region 3, it is also the gap between the air guide hood 5 and the air inlet mesh 9). The air inlet mesh 9 then achieves a filtering function to intercept the dust, the hairs, and relatively large impurities outside, to prevent them from entering the lateral air intake through hole 4, thereby ensuring that the air entering the air duct 2 inside the hair dryer is relatively clean. Moreover, the air guide hood 5 and the bracket 8 are designed to be detachable. This means that when the air inlet mesh 9 needs to be cleaned or the air inlet region 3 needs to be maintained, a user can easily remove the air guide hood 5 and carry out subsequent operations.

[0081] In the embodiment of the present disclosure, a display module 10 is mounted on the bracket 8. The display module 10 is located in a center position of the rear end of the hair dryer body 1 / a center position of the rear end of the bracket 8.

[0082] The display module 10 is mounted on the bracket 8 and is located in the center position of the rear end of the hair dryer body 1 or the bracket 8. The center position of the rear end of the bracket 8 can be regarded as the center position of the rear end of the hair dryer body 1, that is, a center position of the rear end of the barrel 18, to provide a user with a convenient and intuitive information interaction interface. From the perspective of engineering design, the bracket 8 as a relatively stable and flat structure for the rear end of the hair dryer, provides a reliable support for the mounting of the display module 10. The selection of the center position fully considers the user's perspective, so that whether the user operates the hair dryer in a hand or places the hair dryer on a table for use, the display module 10 can be seen in the most direct line of sight angle. Through this design, the display module 10 can timely and clearly show key operating parameters of the hair dryer to the user, such as a current wind speed gear, a temperature setting, surplus power (if the hair dryer is rechargeable), an air intake state, a working mode, and other information, to help the user to quickly understand a real-time state of the hair dryer and perform corresponding adjustment operations.

[0083] In the embodiment of the present disclosure, the air guide hood 5 is provided with a first connection portion 11 corresponding to the bracket 8 in a circumferential direction of the air guide hood 5, and the bracket 8 is provided with a first fitting portion 12 corresponding to the first connection portion 11.

[0084] The air guide hood 5 is further provided with a second connection portion 13 corresponding to the air inlet mesh 9 in the circumferential direction of the air guide hood 5, and the air inlet mesh 9 is provided with a second fitting portion 14 corresponding to the second connection portion 13.

[0085] Connection and fit between the air guide hood 5 and the bracket 8, and connection and fit between the air guide hood 5 and the air inlet mesh 9 are synchronously implemented by fit between the first connection portion 11 and the first fitting portion 12 and fit between the second connection portion 13 and the second fitting portion 14.

[0086] In the circumferential direction, the air guide hood 5 is provided with the first connection portion 11 which has a variety of forms. For example, the first connection portion 11 can be a plurality of elastic snaps uniformly distributed in the circumferential direction of the air guide hood 5. Correspondingly, the first fitting portion 12 on the bracket 8 can be fitting snap-in slots. During mounting, the air guide hood 5 approaches the bracket 8, and the snaps are aligned with the snap-in slots and are slightly pressed. The snaps will be snapped into the snap-in slots by their own elastic deformations, thus completing connection between them. The plurality of snaps are uniformly distributed to ensure a uniform force distribution in the circumferential direction. The first connection portion 11 and the first fitting portion 12 can also be corresponding magnetic components. They are not limited herein.

[0087] The second connection portion 13 arranged in the circumferential direction of the air guide hood 5 interacts with the second fitting portion 14 in a circumferential direction of the air inlet mesh 9. Assuming that the second connection portion 13 includes hooks on a circumferential edge of the air guide hood 5, and the second fitting portion 14 includes hook holes in corresponding positions on a circumferential edge of the air inlet mesh 9. During mounting, the air guide hood 5 approaches the air inlet mesh 9, and the hooks are sequentially hooked into the hook holes to implement the connection between them in the circumferential direction. Alternatively, the second connection portion 13 is a groove in the circumferential direction of the air guide hood 5, and the second fitting portion 14 is a protrusion in the circumferential direction of the air inlet mesh 9. During mounting, the protrusion can be embedded into the groove to complete the connection.

[0088] In a mounting operation, the air inlet mesh 9 and the air guide hood 5 are first assembled, and then the air guide hood 5 with the air inlet mesh 9 is connected to the bracket 8, so as to synchronously implement the stable connection and fit between the air guide hood 5 and the bracket 8, as well as the air inlet mesh 9. This design ensures that the air guide hood 5 remains stable during the operation of the hair dryer, optimizes the sealing property of an air inlet system, and guides the air flow to flow along a given path, pass through the gap between the air guide hood 5 and the bracket 8, be filtered through the air inlet mesh 9, and orderly enter the lateral air intake through hole 4 of the air inlet region 3. Meanwhile, the design in which the air inlet mesh 9 and the air guide hood 5 can be removed and mounted together implements very convenient cleaning and maintenance on the air inlet mesh 9. A user can regularly remove the air guide hood 5 with the air inlet mesh 9, and clear away the dust, the hairs, and other impurities on the air inlet mesh 9 to keep the smoothness of the air inlet system, thereby enhancing the performance and service life of the hair dryer.

[0089] In the embodiment of the present disclosure, at least one noise attenuation mesh acting on the air duct 2 and / or the air inlet region 3 is disposed within the bracket 8.

[0090] The noise attenuation mesh includes: a first noise attenuation mesh 15, a second noise attenuation mesh 16, and a third noise attenuation mesh 17.

[0091] The first noise attenuation mesh 15 is a barrel-shaped or ringlike structure and is disposed in a circumferential direction of an outer side of the bracket 8 and opposite to the air inlet region 3.

[0092] The second noise attenuation mesh 16 is a barrel-shaped or ringlike structure and is arranged around a middle region of the bracket 8 and opposite to the air inlet region 3.

[0093] The third noise attenuation mesh 17 is planar and is disposed in the axial direction of the hair dryer body 1 and located at one end of the bracket 8 close to the air duct 2 inside the hair dryer.

[0094] When the hair dryer is in operation, an air flow flows through the air duct 2 and the air inlet region 3. This easily generates noise. A noise attenuation mesh is disposed within the bracket 8 to effectively attenuate noise in different positions and different manners.

[0095] As a starting end from which the air flow enters the air duct, the air inlet region 3 is a region for intensive noise generation. With its porous structure or sound absorption material, the first noise attenuation mesh 15 can convert a high-frequency noise part generated by the air flow impacting the air inlet region 3 into energy in other forms such as thermal energy when the external air rushes into the air inlet region 3, thereby initially reducing the noise intensity. The air flow treated by the first noise attenuation mesh 15 still contains noise, and the second noise attenuation mesh 16 plays a secondary denoising role herein. It can not only absorb newly added noise during continuous flowing of the air flow in the air inlet passage 6, but also further attenuate the noise that the first noise attenuation mesh 15 has not completely eliminated, thus enhancing noise control. In this case, when the air flow is about to enter the air duct 2, the third noise attenuation mesh 17 can further attenuate residual noise in the air flow before the air flow enters the air duct 2, thus preventing, to an extent, these noises from being amplified due to the resonance effect of the air duct 2 after the air flow enters the air duct 2. Based on reducing the direct impact of noise on a user by changing the direction of noise through the air guide hood 5, this hair dryer has added three noise attenuation meshes to bring a better noise reduction effect. That is, the noise attenuation meshes with different structures and positions are respectively arranged at the starting end of the air inlet region 3, in the middle of an air inlet path, and an inlet end of the air duct 2, and cooperate with each other to comprehensively attenuate noise related to the air inlet region 3 and the air duct 2 in a plurality of processes, thereby implementing a better noise reduction function of this hair dryer.

[0096] In the existing technology, when the hair dryer is directly turned off or suddenly powered off during operation in a hot air mode, there is a common problem of scalding because of a high temperature at an air outlet part. To heat the blown air, a heating component of the hair dryer is usually mounted on an inner side wall of the body near the air outlet part. While heating the air, the heating component also transfers heat to the side wall of the body near the air outlet part, thus causing the temperature near the air outlet to rise. In an air blowing process, due to the continuous blowing of a high-temperature air flow, a user is usually not in direct contact with the air outlet part, so there is no risk of scalding.

[0097] However, after the hair dryer is suddenly turned off or powered off, a blower motor inside the hair dryer immediately stops rotating, and no more air is blown out from the air outlet part. In this case, a heating wire still has a large amount of high residual heat that cannot be dissipated in a timely manner, and may even exacerbate high temperature accumulation at the air outlet part. Since no air is blown out, the user is easily in contact with the air outlet part when placing, storing, or transferring the hair dryer. This poses a risk of scalding the user.

[0098] To this end, the present disclosure further adds a prompting component based on the foregoing air guide and noise reduction structure, to provide a power failure and anti-scald prompt for the risk of high temperature generated by the heating component without affecting the original air guide and noise reduction effect. Meanwhile, the prompting component also has a continuous warning ability after power failure, and cooperates with the noise reduction structure of the present disclosure to enhance the comprehensive use safety of the hair dryer.

[0099] In the embodiment of the present disclosure, a heating component 26 for heating the air flow in the air duct 2 to output hot air is arranged inside the hair dryer body 1. The hair dryer body 1 is further provided with the prompting component. The prompting component includes a power supply assembly 20 and an identification assembly 21 that are electrically connected to each other. The power supply assembly 20 supplies operation power to the identification assembly 21, and the identification assembly 21 is configured to send anti-scald prompting information.

[0100] The power supply assembly 20 may be configured as a farad capacitor or an energy storage battery. When the power supply assembly 20 is the farad capacitor, it has the characteristic of fast charging and discharging, which can supply instantaneous stable operation power to the identification assembly 21 after the hair dryer is powered off, and keep continuous running of the prompt function for short time. When the power supply assembly 20 is the energy storage battery, it has higher storage capacity, which can support long-term stable operation of the identification assembly 21 and meet anti-scald prompting requirements of different use scenarios. Both the farad capacitor and the energy storage battery can supply power independently without relying on a power supply of a hair dryer main unit. Even if the main unit is powered off or the heating component 26 stops working, the prompt function can still be run normally, to avoid the risk of scalding caused by high-temperature waste heat after power failure.

[0101] The identification assembly 21 is mounted on an outer ring of a side wall of the hair dryer body 1 close to an air outlet 27, and the identification assembly 21 is specifically configured as an LED 22, an LED ring 23, or an LED strip 24. In this embodiment, the LED 22, the LED ring 23, or the LED strip 24 is set to be in an intermittent-switching flashing mode. An interval of intermittent switching of the LED, the LED ring, or the LED strip is adjusted based on a temperature value, or set to be in a steady-on mode with gradual brightness reduction, and brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value, or adjusted based on surplus energy of the power supply assembly 20.

[0102] To achieve the foregoing effect of adjusting a prompt state based on the temperature value, the hair dryer body 1 is further provided with a temperature sensor 25. The temperature sensor 25 is electrically connected to the power supply assembly 20 and is disposed at a position corresponding to the heating component 26 or the air outlet 27, for real-time sensing of a temperature value of the heating component 26 or the air outlet 27. The identification assembly 21 sends the anti-scald prompt information based on the temperature value sensed by the temperature sensor 25.

[0103] A micro control unit can also be disposed within the hair dryer body 1. The micro control unit is configured to: receive the temperature value sensed by the temperature sensor 25 and control the brightness of the LED 22 by using a control algorithm, so that a brightness reduction curve matches a temperature drop curve. Specifically, when the temperature sensor 25 senses a relatively high temperature value, the interval of intermittent switching of the LED 22, the LED ring 23, or the LED strip 24 is shortened, a flashing frequency is increased, and a prompting effect is more outstanding, making it easier for a user to intuitively perceive the risk of high temperature. When the temperature value decreases, a flashing interval is correspondingly prolonged, and the prompt stops until the temperature drops to a safe range. Alternatively, the LED 22, the LED ring 23, or the LED strip 24 is set to be in the steady-on mode with gradual brightness reduction. The brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor 25. A higher temperature reflects higher the brightness and a more intuitive prompt effect. The brightness can also be adjusted based on the surplus power of the power supply assembly 20. When the surplus power of the power supply assembly 20 is high, the brightness is relatively high. As the surplus power decreases, the brightness gradually decreases until the LED is completely extinguished. This implements both an anti-scald prompt function and a battery level prompt function.

[0104] In addition, the identification assembly 21 can also be set as a display module 10. The display module 10 can be adapted to the structure of the display module 10 arranged at the rear end of the hair dryer body 1 of the present disclosure. The power supply assembly 20 supplies operating power to the display module 10, so that the display module 10 sends an anti-scald prompt. It can intuitively display the temperature value and anti-scald prompting text of the heating component 26 or the air outlet 27, and form a unified interactive system with the display module 10 at the rear end, thus further enhancing the convenience of use.

[0105] For those skilled in the art, it is apparent that the present disclosure is not limited to the details of the exemplary embodiments mentioned above, and can be implemented in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, in any perspective, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present disclosure is limited by the accompanying claims rather than the above description. Therefore, all changes within the meaning and scope of the equivalent conditions of the claims within the present disclosure.

Examples

Embodiment Construction

[0051]The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure rather than all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the disclosed embodiments without creative efforts shall fall within the protection scope of the present disclosure.

[0052]Referring to FIG. 1 to FIG. 13, in an embodiment of the present disclosure, a hair dryer includes: a hair dryer body 1, an air inlet structure, and an air guide hood 5.

[0053]An air duct 2 disposed in an axial direction of the hair dryer body 1 is provided inside the hair dryer body 1.

[0054]The air inlet structure includes an air inlet region 3 arranged at a rear end of the hair dryer body 1. A lateral air intake through hole 4 communicated with the air ...

Claims

1. A hair dryer, comprising:a hair dryer body, wherein an air duct disposed in an axial direction of the hair dryer body is provided inside the hair dryer body;an air inlet structure comprising an air inlet region arranged at a rear end of the hair dryer body, where a lateral air intake through hole communicated with the air duct is provided on the air inlet region; andan air guide hood fixedly or detachably connected to a rear end of the hair dryer body to guide and convert a radial air flow and / or a near-radial air flow entering from the lateral air intake through hole into an axial air flow in the axial direction of the hair dryer body, to change a direction of noise in the air inlet region.

2. The hair dryer according to claim 1, wherein the air guide hood is arranged around an outer side of the air inlet region and is in spaced fit with the air inlet region, to enclose and form an air inlet passage, extending in the axial direction of the hair dryer body, between the air guide hood and the air inlet region.

3. The hair dryer according to claim 2, wherein the air guide hood overlaps the air inlet region in the axial direction of the hair dryer body.

4. The hair dryer according to claim 2, wherein the air inlet passage annularly surrounds the air inlet region; an inner side of the air inlet passage is communicated with the lateral air intake through hole of the air inlet region; and the air inlet passage has an opening in an outer side to allow external air to flow into the air duct inside the hair dryer body from the lateral air intake through hole via the air inlet passage.

5. The hair dryer according to claim 1, wherein the air guide hood is made of a transparent material.

6. The hair dryer according to claim 1, wherein a bracket is mounted at the rear end of the hair dryer body; the air inlet region is arranged around a periphery of a rear end of the bracket; an air inlet mesh is disposed between the air guide hood and the bracket; the air inlet mesh covers the lateral air intake through hole of the air inlet region; and the air guide hood is in detachable fit with the bracket.

7. The hair dryer according to claim 6, wherein a display module is mounted on the bracket; and the display module is located in a center position of the rear end of the hair dryer body / a center position of the rear end of the bracket.

8. The hair dryer according to claim 6, wherein the air guide hood is provided with a first connection portion corresponding to the bracket in a circumferential direction of the air guide hood, and the bracket is provided with a first fitting portion corresponding to the first connection portion;the air guide hood is further provided with a second connection portion corresponding to the air inlet mesh in the circumferential direction of the air guide hood, and the air inlet mesh is provided with a second fitting portion corresponding to the second connection portion; andconnection and fit between the air guide hood and the bracket, and connection and fit between the air guide hood and the air inlet mesh are synchronously implemented by fit between the first connection portion and the first fitting portion and fit between the second connection portion and the second fitting portion.

9. The hair dryer according to claim 6, wherein at least one noise attenuation mesh acting on the air duct and / or the air inlet region is disposed within the bracket.

10. The hair dryer according to claim 9, wherein the noise attenuation mesh comprises:a first noise attenuation mesh which is a barrel-shaped or ringlike structure and is disposed in a circumferential direction of an outer side of the bracket and opposite to the air inlet region;a second noise attenuation mesh which is a barrel-shaped or ringlike structure and is arranged around a middle region of the bracket and opposite to the air inlet region; anda third noise attenuation mesh which is planar and is disposed in the axial direction of the hair dryer body and located at one end of the bracket close to the air duct inside the hair dryer.

11. The hair dryer according to claim 1, wherein the hair dryer body is further provided with a prompting component; the prompting component comprises a power supply assembly and an identification assembly that are electrically connected to each other; the power supply assembly supplies operation power to the identification assembly; and the identification assembly sends anti-scald prompting information.

12. The hair dryer according to claim 11, wherein the power supply assembly is configured as a farad capacitor or an energy storage battery.

13. The hair dryer according to claim 11, wherein the identification assembly is mounted on an outer ring of a side of the hair dryer body close to an air outlet; andthe identification assembly is configured as a light-emitting diode (LED), an LED ring, or an LED strip.

14. The hair dryer according to claim 13, wherein the hair dryer body is further provided with a temperature sensor; and the temperature sensor is electrically connected to the power supply assembly, and the identification assembly sends the anti-scald prompting information based on a temperature value sensed by the temperature sensor.

15. The hair dryer according to claim 14, wherein the LED, the LED ring, or the LED strip is set to be in an intermittent-switching flashing mode; an interval of intermittent switching of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor;alternatively, the LED, the LED ring, or the LED strip is set to be in a steady-on mode with gradual brightness reduction, and brightness of the LED, the LED ring, or the LED strip is adjusted based on the temperature value sensed by the temperature sensor, or adjusted based on surplus energy of the power supply assembly.

16. The hair dryer according to claim 11, wherein the identification assembly is configured as a display module; and the power supply assembly supplies operation power to the display module to cause the display module to send the anti-scald prompting information.

Images