CN113597267B - Drying apparatus - Google Patents

Abstract

Drying apparatus (100) comprising: casing (10), motor (20) and radiation source (30), be equipped with wind channel (40) in casing (10), motor (20) are located casing (10) and are used for producing the air current in wind channel (40), and radiation source (30) are acceptd in casing (10) and are used for producing infrared radiation and direct infrared radiation outside casing (10), and radiation source (30) include: the first part is positioned outside the air duct (40), and the second part is connected with the first part and exchanges heat with the air duct (40).

Description

Drying apparatus

PRIORITY INFORMATION

The present application requests priority and benefit of patent application No. PCT/CN2020/089408, filed on 09.05.2020, requests priority and benefit of patent application No. PCT/CN2020/095146, filed on 09.06.09.2020, and requests priority and benefit of patent application No. PCT/CN2021/082835, filed on 24.03.2021, to the intellectual property office of china, and is incorporated herein by reference in its entirety.

Technical Field

The application relates to the technical field of drying, in particular to drying equipment.

Background

The main components of a traditional hair drier are a motor, a heating wire (such as a resistance wire) and an air duct. The heating wire generates heat after being electrified, heats air sucked by the motor in the air duct, and then blows the air to the hair of a user through the motor. However, the temperature of air blown onto the hair surface is high, so that the hair is easily baked, and the hair quality is damaged after long-term use.

Disclosure of Invention

Embodiments of the present application provide a drying apparatus.

The drying apparatus of an embodiment of the present application includes:

the air duct is arranged in the shell;

a motor located in the housing and configured to generate an airflow in the air duct;

a radiation source housed in the housing and configured to generate infrared radiation and direct the infrared radiation outside the housing, the radiation source comprising:

a first portion located outside the air duct;

and the second part is connected with the first part and exchanges heat with the air channel.

In the above-described drying apparatus, Infrared (IR) radiation is used as a source of thermal energy to remove water and moisture from objects such as hair. The radiation source may emit infrared energy to provide stable and consistent heat, which improves heat transfer efficiency and reduces damage to objects. Meanwhile, on one hand, the air duct can also dissipate heat of the second part of the radiation source, the radiation source is not affected by overhigh working temperature, and on the other hand, the first part is located outside the air duct, so that the radiation source can be kept at a proper working temperature during working.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a drying apparatus according to an embodiment of the present application;

fig. 2 is a schematic view of a partial structure of a drying apparatus according to an embodiment of the present application;

3A-3D are schematic diagrams of a radiation source and a wind tunnel of a drying apparatus according to an embodiment of the present application;

FIG. 4 is a schematic structural view of another part of the drying apparatus according to the embodiment of the present application;

FIGS. 5A-5D are schematic diagrams of another relationship of a radiation source and a wind tunnel of a drying apparatus according to embodiments of the present application;

FIG. 6 is a schematic structural view of another part of the drying apparatus according to the embodiment of the present application;

fig. 7A-7D are schematic diagrams of another relationship between a radiation source and a wind tunnel of a drying apparatus according to an embodiment of the present application.

FIG. 8 is a schematic structural view of a further part of a drying apparatus according to an embodiment of the present application;

FIGS. 9A-9D are schematic diagrams of yet another relationship of a radiation source and a wind tunnel of a drying apparatus according to embodiments of the present application;

fig. 10 is a schematic structural view of a further part of the drying apparatus according to the embodiment of the present application;

11A-11D are schematic diagrams of still another relationship of a radiation source and a wind tunnel of a drying apparatus according to embodiments of the present application;

fig. 12 is a schematic structural view of a further part of the drying apparatus according to the embodiment of the present application;

FIGS. 13A-13B are schematic illustrations of yet another relationship of a radiation source and a tunnel of a drying apparatus according to embodiments of the present application;

fig. 14 is a schematic structural view of a further part of the drying apparatus according to the embodiment of the present application;

fig. 15 is a perspective view of a part of the structure of the drying apparatus according to the embodiment of the present application;

fig. 16 is a schematic perspective view of a radiation source of a drying apparatus according to an embodiment of the present application;

fig. 17A-17B are schematic illustrations of the relationship of a radiation source to optical elements according to embodiments of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different configurations of the present application. In order to simplify the disclosure of the present application, specific example components and arrangements are described herein. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides drying equipment. The drying apparatus of the present application can remove water and moisture from objects (e.g., hair, fabrics) by utilizing an Infrared (IR) radiation source as a source of thermal energy. The infrared radiation source can emit infrared energy having a predetermined wavelength range and power density to heat the object. The heat carried by the infrared energy is transferred directly to the object in a radiative heat transfer manner such that the heat transfer efficiency is improved as compared to conventional convective heat transfer (e.g., substantially no heat is absorbed by the surrounding air in a radiative heat transfer manner, whereas a significant portion of the heat is absorbed by the surrounding air and carried away in a conventional conductive heat transfer manner). The infrared radiation source may be used in conjunction with a motor that generates an air flow that further accelerates the evaporation of water from the object.

Another benefit of using infrared radiation as a source of thermal energy is that infrared heat can penetrate the hair shaft up to the cortex of the hair shaft, thus drying the hair faster and relaxing and softening the hair. Infrared energy is also thought to be beneficial to scalp health and to stimulate hair growth by increasing blood flow to the scalp. The use of an infrared radiation source also makes the drying apparatus compact and lightweight. The improved heat transfer efficiency and energy efficiency of the infrared radiation source may also extend the run time of the wireless drying apparatus powered by the embedded battery.

Referring to fig. 1, a drying apparatus 100 provided in the present embodiment may include a housing 10, a motor 20, and a radiation source 30. An air duct 40 is provided in the housing 10. The housing 10 may house various electrical, mechanical and electromechanical components, such as a motor 20, a radiation source 30, a control board (not shown), and a power adapter (not shown).

The housing 10 may include a body 102 and a handle 104, each of the body 102 and the handle 104 may house at least a portion of the electrical, mechanical, and electromechanical components therein. In some embodiments, the body 102 and the handle 104 may be integrally connected. In some embodiments, the body 102 and the handle 104 may be separate components. For example, the handle 104 may be detachable from the body 102. In one example, the detachable handle 104 may house a power source (e.g., one or more batteries) therein for powering the drying appliance 100. The housing 10 may be made of an electrically insulating material. Examples of the electrical insulating material may include polyvinyl chloride (PVC), polyethylene terephthalate (PET), Acrylonitrile Butadiene Styrene (ABS), polyester, polyolefin, polystyrene, polyurethane, thermoplastic, silicone, glass, fiberglass, resin, rubber, ceramic, nylon, and wood. The housing 10 may also be made of a metallic material coated with an electrically insulating material, or a combination of an electrically insulating material and a metallic material coated or not coated with an electrically insulating material. For example, an electrically insulating material may constitute an inner layer of the housing 10, and a metallic material may constitute an outer layer of the housing 10. In one example, an input assembly 106 is also provided on the handle 104, and the input assembly 106 can be used for a user to operate the drying apparatus, such as to turn the drying apparatus on and off, adjust the motor speed, power of the radiation source, and the like. The input component 106 may include at least one of physical keys, virtual keys, a touch screen. In other embodiments, the drying appliance may omit the input component, and the drying appliance may be controlled by a terminal in communication with the drying appliance, which may include, but is not limited to, a cell phone, a tablet computer, a wearable smart device, a personal computer, and the like.

The housing 10 may be provided with one or more air ducts 40 therein, and the air ducts 40 may be fixed in the housing 10 so as to allow the airflow generated by the motor 20 to flow stably and avoid disturbance of the airflow from outside. The airflow generated by the motor 20 may be directed or regulated through the air duct and toward the user's hair. For example, the air duct 40 may be shaped to regulate at least the velocity, throughput, divergence angle, or swirl strength of the air stream exiting the drying apparatus 100. The air chute 40 may include an airflow inlet 402 and an airflow outlet 404. In one example, the airflow inlet 402 and the airflow outlet 404 may be positioned at opposite ends of the drying apparatus 100 along a longitudinal direction of the drying apparatus 100 (e.g., a length direction of the body 102). Airflow inlet 402 and airflow outlet 404 may each be a vent that allows for efficient airflow throughput. Ambient air may be drawn into the air chute 40 through the airflow inlet 402 to generate an airflow, and the generated airflow may exit the air chute 40 through the airflow outlet 404. The motor 20 may be located in the air duct 40 of the body 102 or in the air duct 40 of the handle 104, which is not limited herein. The airflow inlet 402 may also be provided in the handle 104, or in both the handle 104 and the body 102.

The cross-sectional shape of the airflow outlet 404 may be any shape, preferably circular, oval, rectangular (rectangular), square, or various variations of circular and quadrangular, such as quadrangular with rounded four corners, etc. And is not particularly limited herein.

In one example, the body 102 defines a duct 40, and the duct 40 is substantially cylindrical. It is understood that in other embodiments, the air duct 40 may have other shapes, such as a funnel shape, a Y-shape, and other regular or irregular shapes, and is not limited thereto.

In one embodiment, one or more air filters (not shown) may be provided at the airflow inlet 402 to prevent dust or hair from entering the air chute 40. For example, the air filter may be a mesh having an appropriate mesh size. The air filter may be removable or replaceable for cleaning and maintenance. In one embodiment, an airflow regulator (not shown) may be provided at the airflow outlet 404. The airflow regulator may be a removable mouthpiece, a comb or a crimper. The airflow regulator may be configured to regulate the velocity, throughput, divergence angle, or vortex intensity of the airflow blown from the airflow outlet 404. For example, the airflow regulator may be shaped to converge (e.g., concentrate) the airflow at a predetermined distance forward of the airflow outlet 404. For example, the airflow regulator may be shaped to diverge the airflow exiting the airflow outlet 404.

In one embodiment, since the radiation source 30 for generating infrared radiation is disposed in the housing 10, no additional heating device may be disposed in the housing 10, on one hand, the radiation power of the radiation source 30 may be adjusted to achieve a desired drying effect, and on the other hand, the drying device 100 may be miniaturized without the additional heating device, so as to improve the portability of the drying device 100, and the energy consumption of the drying device 100 may be lower without the additional heating device, so that the endurance of the drying device 100 may be increased. In some embodiments, the heating device comprises a heating wire (e.g., a resistance wire).

In one embodiment, the motor 20 is located in the housing 10 and is used to generate an air flow in the air chute 40. In one example, the motor 20 may be disposed within the air chute 40 of the body 102 proximate to the airflow inlet 402. The motor 20 may include a drive portion 202 and an impeller 204. The impeller 204 may include a plurality of blades. When the impeller 204 is driven by the drive portion 202, the rotation of the impeller 204 may send ambient air into the air chute 40 through the airflow inlet 402 to generate an airflow, push the generated airflow through the air chute 40, and expel the airflow from the airflow outlet 404. The drive portion 202 may be supported by a bracket or housed in a shroud. The motor 20 may include a brushless motor 20, and the rotational speed of the impeller 204 may be adjusted under the control of a controller (not shown). For example, the rotational speed of impeller 204 may be controlled by a preset program, user input, or sensor data. In some embodiments, the drive portion 202 dimension measured in any direction may be in a range between 14mm (millimeters) and 21 mm. The power output of the motor 20 may be in the range of 35 to 80 watts (W). The maximum velocity of the gas stream exiting the gas stream outlet 404 may be at least 8 meters per second (m/s).

While the motor 20 is shown in fig. 1 and 2 as being disposed in the body 102, it will be appreciated that in other embodiments, the motor 20 may be disposed in the handle 104. For example, rotation of the impeller 204 may draw air into an airflow inlet 402 disposed at the handle 104 and push the air through the air chute 40 to an airflow outlet 404 disposed at one end of the body 102. The air chute 40 may extend through the handle 104 and the body 102 of the housing 10, respectively.

In one embodiment, the fan blade pass frequency of the motor 20 is close to the frequency range of the ultrasonic waves. The blade pass frequency may be expressed as the product of the motor speed and the number of blades of motor 20. The passing frequency of the fan blade of the motor 20 is close to the frequency range of the ultrasonic wave, and it can be understood that the passing frequency of the fan blade is within the frequency range of the ultrasonic wave, or the passing frequency of the fan blade is the upper limit or the lower limit of the frequency range of the ultrasonic wave, or the difference between the passing frequency of the fan blade and the upper limit or the lower limit of the frequency range of the ultrasonic wave is smaller than the preset value. In one example, the motor 20 has a rotational speed in rps (revolutions per second) and a blade pass frequency of 15KHz or greater. The drying apparatus 100 described above enables the motor 20 to provide a suitable wind force to properly dissipate heat from the radiation source.

In one embodiment, the number of blades of the motor 20 is a prime number of 5 or more.

In the example of fig. 1, a part of the radiation source 30 is located outside the air duct 40, and another part of the radiation source 30 can exchange heat with the air duct 40, for example, the radiation source 30 may include a reflective cup 302, a part of an outer wall (e.g., a windward side) of the reflective cup 302 is located outside the air duct 40, and the part is not blown by the airflow of the air duct 40, so that the heat exchange amount between the part and the air duct 40 is small, on one hand, the radiation source 30 can be properly dissipated, on the other hand, the radiation source 30 can be kept at a proper working temperature during working, and the evaporation efficiency of water on an object can be improved.

In one embodiment, the rotational speed of the motor 20 is 50000rpm or greater. That is, the motor speed is at least 5 ten thousand revolutions per minute. In this way, the high-speed motor 20 (the rotation speed of the motor 20 is 50000rpm or more) can generate a sufficient air volume and also appropriately radiate heat from the radiation source 30.

In particular, in the prior art, due to the use of a low-speed motor, in order to effectively dissipate heat of a single high-power radiation source, the radiation source is generally integrally and directly placed in the air duct, for example, the whole outer wall (i.e. the whole windward side) of the reflector cup of the radiation source is directly blown by the air flow of the air duct to take away the heat of the radiation source. However, such drying apparatus has the disadvantages of 1) a longer (larger) body length along the axial (e.g. horizontal) direction of the duct, because a) the reflector cup of the radiation source is generally parabolic and longer; b) the temperature of the airflow outlet close to the radiation is extremely high, and an isolating device is needed to prevent scalding and accidents. 2) The shape of the radiation source in the air duct 40 (e.g., the shape of the outer wall of the reflector cup) may have an effect on the airflow, such as creating wind resistance, wind noise, changing the direction of the airflow, etc., and eventually lose the energy of the wind.

In the present embodiment, the object will radiate in the infrared to visible wavelength range in the form of heat transfer. This heat transfer is known as black body radiation. The black body radiation is broadband radiation. The center wavelength and spectral bandwidth decrease with increasing temperature. Total energy and S × T⁴In proportion, where S represents surface area and T represents temperature. Given the operating temperature required by blackbody radiation of the radiation source 30 and the air volume of the high-speed motor 20 (measured by Cubic per minimum/CPM), the heat dissipation efficiency and thus the heat dissipation area required by the radiation source 30 can be derived. This heat dissipation area is smaller than the prior art heat dissipation area of placing the entire radiation source 30 into the air duct 40, so that a portion of the radiation source 30 in the embodiment of the present application can be located outside the air duct 40 without being directly blown by the air flow of the air duct 40, and even if a single high-power radiation source is used30, while maintaining the radiation source 30 at a suitable operating temperature, the radiation source 30 may be structurally offset in a radial direction (e.g., a vertical direction) of the air duct 40 due to a portion of the radiation source 30 being located outside the air duct 40, which may reduce the length of the body 102 and reduce the adverse effects of the shape of the radiation source 30 on the air flow.

In one embodiment, the motor 20 is fixed within the housing 10 by a shock absorbing device (not shown). In this way, the transmission of the vibration generated by the motor 20 to the housing 10 can be reduced or avoided, and the user is prevented from being confused.

Specifically, the damping means may include an elastic member, and vibrations generated when the motor 20 operates may be absorbed by the elastic member, thereby reducing the transmission of the vibrations.

In one embodiment, the vibration damping device is fixedly attached to the radiation source 30. In this way, the transmission path of the vibration generated by the motor 20 is increased, and the vibration generated by the motor 20 and transmitted to the housing 10 is further reduced. Specifically, the damping device is fixedly connected to the radiation source 30, and the radiation source 30 can be fixed in the housing 10, so that the vibration transmission path is further formed by the motor 20- > the damping device- > the radiation source 30- > the housing 10.

In one embodiment, the shock absorbing device comprises a sleeve formed of an elastomeric material, the sleeve including a snap-fit portion extending around the sleeve that flexibly couples with at least one of the housing 10, the air chute 40 and the radiation source 30. So, through the joint portion of flexible coupling, reduce vibrations transmission.

Specifically, the sleeve may be sleeved outside the driving portion 202 of the motor 20, the clamping portions may be disposed on an outer surface of the sleeve, and the clamping portions may be formed in a plurality (two or more) and disposed at uniform intervals along a circumferential direction of the sleeve to uniformly reduce vibration transmission. Of course, the clamping portion can be formed in a single piece, and the single clamping portion is annularly arranged on the outer surface of the sleeve.

The sleeve includes a snap-fit portion extending around the sleeve that flexibly couples with at least one of the housing 10, the air chute 40 and the radiation source 30, the sleeve may include a snap portion extending around the sleeve that is flexibly coupled to the housing 10. alternatively, the sleeve may include a snap portion extending around the sleeve that is flexibly coupled to the air chute 40, the sleeve may include a clamp portion extending around the sleeve and flexibly coupled to the radiation source 30, the sleeve may include a clamp portion extending around the sleeve and flexibly coupled to the housing 10 and the air duct 40, and the sleeve may also include a clamp portion extending around the sleeve and flexibly coupled to the air duct 40 and the radiation source 30, the sleeve may include a snap extending around the sleeve that flexibly couples with the housing 10 and the radiation source 30, or the sleeve may include a snap extending around the sleeve that flexibly couples with the housing 10, the air duct 40, and the radiation source 30.

In one embodiment, the snap-in portion is a protrusion formed of a rubber material. So, the arch is convenient for connect, and the arch that rubber materials formed is also easily the shaping, and the shock attenuation effect preferred.

In one embodiment, the radiation source 30 is housed in the housing 10 and is configured to generate and direct infrared radiation outside of the housing 10. The radiation source 30 may include a first portion that is located outside the air chute 40 and a second portion that is coupled to the first portion and in thermal communication with the air chute 40.

The number of radiation sources 30 may be single or plural (two or more). When the number of the radiation sources 30 is plural, the radiation sources 30 are configured such that the radiation from the radiation sources 30 forms a spot at a distance outside the opening side of the radiation sources 30. Therefore, the infrared radiation intensity of the light spot area is high, and the object can be effectively dried. It will be appreciated that a single radiation source 30 may also be configured such that radiation from the radiation source 30 forms a spot at a distance outside the open side of the radiation source 30.

Specifically, the plurality of radiation sources 30 form a light spot at a distance from the outside of the drying apparatus 100 by adjusting the opening direction of the radiation sources 30. The spot may be a circular spot, which may be 10cm in diameter. In one example, the distance may be 10 cm.

In one embodiment, the second portion is located downstream of the motor 20 in the direction of air flow. In this way, the heat exchange effect between the second portion and the air duct 40 can be improved.

Specifically, referring to fig. 1, the radiation source 30 is located close to the left side of the drying apparatus 100 as a whole, the motor 20 is located close to the right side of the drying apparatus 100, and when the motor 20 is operated, air is sucked from the external environment on the right side of the drying apparatus 100, and an air flow with a relatively high speed is output from the left side of the motor 20, and the air flow flows to the radiation source 30. The faster air flow may improve the heat exchange efficiency of the second portion with the air duct 40.

In one embodiment, in operation, the radiation source 30 is located between the air chute 40 and the housing 10. In this manner, a configuration of the drying apparatus 100 can be realized, as shown in fig. 1.

Specifically, in operation, it is understood that at least one of the radiation source 30 and the motor 20 is on, including the radiation source 30 being on and the motor 20 being off, the radiation source 30 being off and the motor 20 being on, the radiation source 30 being on and the motor 20 being on.

In one embodiment, the radiation source 30 may be fixed within the housing 10, that is, the radiation source 30 is located between the air chute 40 and the housing 10 regardless of whether the drying apparatus 100 is in operation or not. In one embodiment, the radiation source 30 is movably disposed within the housing 10, such as by adding a moving structure to adjust the position of the radiation source 30 such that the drying apparatus 100 is operated to drive the radiation source 30 to a position between the air chute 40 and the housing 10, and the drying apparatus 100 is not operated to move the radiation source 30 to another position, such as to the air chute 40, or another position within the housing 10 that is convenient for storage. In one embodiment, the structure may be moved to adjust the position of the air chute 40, or the structure may be moved to adjust the position of the air chute 40 and the radiation source 30. And is not particularly limited herein.

In one embodiment, all of the radiation sources 30 are located outside the air chute 40. The number of the radiation sources 30 may include a plurality, and all the radiation sources 30 are located outside the air duct 40, so that the air duct 40 generates less airflow resistance during operation, which helps to reduce wind noise and wind resistance.

Specifically, the air duct 40 has no radiation source 30, has little influence on the wind speed and the wind volume, and does not generate additional wind noise. The wind speed and the wind volume have a great influence on the blowing speed. In particular, when the drying apparatus 100 is used for drying hair, the low noise may enhance the user experience as the drying apparatus 100 is close to the ear during hair blowing.

In one embodiment, the radiation source 30 may be disposed circumferentially of the wind tunnel 40 proximate the airflow outlet 404 of the wind tunnel 40. So, on the one hand, when wind flowed out from airflow outlet 404, the heat of radiation source 30 part was taken away by wind, lets wind temperature rise several degrees (1 ~ 5 degrees), though be not enough to produce decisive influence by dry object (like dry hair), has nevertheless promoted the body of blowing human back body and has felt by the cold wind, has promoted user experience. On the other hand, the infrared radiation emitted by the radiation source 30 is basically not shielded by the air duct 40, which is beneficial to improving the drying efficiency.

In one embodiment, the radiation source 30 is disposed about the airflow outlet 404 of the air chute 40. In the example of fig. 2, 3A-3D, the planar shape of the radiation source 30 along a plane perpendicular to the axial direction of the air chute 40 is circular or approximately circular. In the example of fig. 3A, the number of radiation sources 30 is two, with two radiation sources 30 arranged 180 degrees apart around the airflow outlet 404 of the air chute 40. In the example of fig. 3B, the number of radiation sources 30 is three, and three radiation sources 30 are arranged at 120 degrees intervals around the airflow outlet 404 of the air chute 40. In the example of fig. 3C, the number of radiation sources 30 is four, with four radiation sources 30 arranged at 90 degree intervals around the airflow outlet 404 of the air chute 40. In the example of fig. 3D, the number of radiation sources 30 is five, with five radiation sources 30 arranged at 72 degrees intervals around the airflow outlet 404 of the air chute 40. It will be appreciated that the number of radiation sources 30 may also be more than five, arranged around the airflow outlet 404 of the air chute 40 at even intervals along the circumference of the air chute 40. In addition, in other embodiments, the angle of separation between adjacent two radiation sources 30 may be different in the plurality of radiation sources 30. And is not particularly limited herein. In the example of fig. 4, 5A-5D, the radiation source 30 is circular or fan-shaped in plan view perpendicular to the axial direction of the air chute 40. In the example of fig. 5A, the number of radiation sources 30 is single, and the single radiation source 30 is annular and is arranged 360 degrees circumferentially around the airflow outlet 404 of the wind tunnel 40 along the wind tunnel 40. In the example of fig. 5B, the number of radiation sources 30 is two, each radiation source 30 has a substantially 180 degree fan shape, each radiation source 30 is disposed about the airflow outlet 404 of the wind tunnel 40 approximately 180 degrees along the circumference of the wind tunnel 40, and the two radiation sources 30 are arranged in a substantially circular ring shape. In the example of fig. 5C, the number of radiation sources 30 is three, each radiation source 30 has a substantially 120-degree fan shape, each radiation source 30 is disposed circumferentially along the wind tunnel 40 approximately 120 degrees around the airflow outlet 404 of the wind tunnel 40, and the three radiation sources 30 are arranged in a substantially circular ring shape. In the example of fig. 5D, the number of radiation sources 30 is four, each radiation source 30 is substantially in the shape of a 90-degree fan, each radiation source 30 is arranged circumferentially along the wind tunnel 40 approximately 90 degrees around the airflow outlet 404 of the wind tunnel 40, and the four radiation sources 30 are arranged in a substantially circular ring. It will be appreciated that the number of radiation sources 30 may also be more than four, arranged around the airflow outlet 404 of the air chute 40 at even intervals along the circumference of the air chute 40. Additionally, in other embodiments, the arc of each of the plurality of radiation sources 30 may be different. And is not particularly limited herein.

In one embodiment, the radiation source 30 is disposed on one side of the airflow outlet 404 of the air chute 40. In the example of fig. 6, 7A-7D, the planar shape of the radiation source 30 along a direction perpendicular to the axial direction of the air chute 40 is circular or approximately circular. In the example of fig. 7A, the number of radiation sources 30 is single, with a single radiation source 30 disposed on the lower half of the airflow outlet 404 of the air chute 40. In the example of fig. 7B, the number of the radiation sources 30 is two, and two radiation sources 30 are arranged on the lower half side of the airflow outlet 404 of the wind tunnel 40. In the example of fig. 7C, the number of radiation sources 30 is three, and three radiation sources 30 are arranged on the lower half side of the airflow outlet 404 of the air chute 40. In the example of fig. 7D, the number of radiation sources 30 is four, and four radiation sources 30 are arranged on the lower half side of the airflow outlet 404 of the air chute 40. It will be appreciated that the number of radiation sources 30 may also be more than five, arranged on the lower half of the airflow outlet 404 of the air chute 40. In addition, in other embodiments, the radiation source 30 may be disposed on the upper half, the left half, the right half, the upper left half, the lower left half, the upper right half, and the lower right half, and is not limited herein. In other embodiments, the planar shape of the radiation source 30 along the axis perpendicular to the air duct 40 may be circular or fan-shaped.

In other embodiments, any combination of the circular radiation source 30, and the fan-shaped radiation source 30 may be disposed discretely on the side of the airflow outlet 404 of the air chute 40, or disposed around the airflow outlet 404 of the air chute 40.

In one embodiment, the second portion is integrally connected to the air chute 40. In this way, the heat exchange efficiency between the second portion and the air duct 40 can be made high.

Specifically, the radiation source 30 may include a reflector cup 302, the second portion may be a portion of an outer wall of the reflector cup 302 or a portion of a base 310 of the reflector cup 302, and the reflector cup 302 may be integrally connected to the air duct 40. The injection molding process can be used for realizing the integrally formed connection, and the welding process can also be used for realizing the integrally formed connection. And is not particularly limited herein. Anti-light cup 302 outer wall and wind channel 40 are at that section formation joint portion of air outlet 404, and at the joint portion, inspiratory wind carries out the heat exchange with anti-light cup 302, and the temperature of wind can promote about 1 ~ 5 degrees, then blows out, though be not enough to produce decisive influence by dry object (like dry hair), but promoted the body sense of blowing human back people, let the people can not feel by cold wind blowing, has promoted user experience.

In one embodiment, the radiation source 30 is surrounded by a wind tunnel 40. In this manner, another configuration of the drying apparatus 100 can be realized, as shown in fig. 8.

Specifically, the radiation source 30 may be placed in the wind tunnel 40, and a first portion of the radiation source 30 may be shielded by a shield so that the first portion is not blown by the airflow in the wind tunnel 40, for example, the first portion may include a portion of the outer wall of the reflector cup 302, which may be shielded so that the portion is not blown by the airflow in the wind tunnel 40. And a part of the outer wall of the reflector cup 302 which is not shielded can be used as a second part, and the air flow in the air duct 40 can be blown to the second part so that the second part exchanges heat with the air duct 40.

In the example of fig. 8, 9A-9D, the planar shape of the radiation source 30 along a direction perpendicular to the axial direction of the air chute 40 is circular or approximately circular. In the example of fig. 9A, the number of radiation sources 30 is single, with a single radiation source 30 disposed in the wind tunnel 40. In the example of fig. 9B, the number of the radiation sources 30 is two, and the two radiation sources 30 are arranged in the wind tunnel 40 to be radially dispersed along the wind tunnel 40. In the example of fig. 9C, the number of the radiation sources 30 is three, and the three radiation sources 30 are dispersedly arranged in the wind tunnel 40 in a triangular shape. In the example of fig. 9D, the number of the radiation sources 30 is four, and four radiation sources 30 are dispersedly arranged in the wind tunnel 40 in a square shape. It is understood that the number of the radiation sources 30 may be more than four, and the radiation sources are dispersedly arranged in the air duct 40. And is not particularly limited herein.

In the example of fig. 10, 11A-11D, the radiation source 30 is circular or fan-shaped in plan view perpendicular to the axial direction of the air chute 40. In the example of fig. 11A, the number of the radiation sources 30 is two, each radiation source 30 has a circular ring shape, and the two radiation sources 30 are concentrically arranged in the air duct 40, thereby forming two layers of the radiation sources 30 in a ring shape. In the example of fig. 11B, the number of radiation sources 30 is two, each radiation source 30 having a substantially 180-degree fan shape, and the two radiation sources 30 being arranged in a substantially circular ring shape. In the example of fig. 11C, the number of radiation sources 30 is three, each radiation source 30 having a substantially 120-degree fan shape, and the three radiation sources 30 being arranged in a substantially circular shape. In the example of fig. 11D, the number of radiation sources 30 is four, each radiation source 30 having a substantially 90-degree fan shape, and the four radiation sources 30 being arranged in a substantially circular shape. It is understood that the number of the radiation sources 30 may be one or more than four, and the radiation sources are dispersedly disposed in the air duct 40. Additionally, in other embodiments, the arc of each of the plurality of radiation sources 30 may be different. And is not particularly limited herein.

In other embodiments, any combination of the circular radiation source 30, and the fan-shaped radiation source 30 may be dispersed in the air duct 40.

In one embodiment, the number of radiation sources 30 is plural, and the plural radiation sources 30 are arranged dispersedly in the wind tunnel 40.

In this way, the plurality of radiation sources 30 distributed in the air duct 40 can avoid the phenomenon that the radiation sources 30 or the air duct 40 are locally overheated due to the over-concentrated heat.

Specifically, referring to fig. 12 and 13A, one air duct 40 is provided with one air flow outlet 404, and the plurality of radiation sources 30 distributed may be disposed in the air flow outlet 404 of the air duct 40 in a star shape.

In one embodiment, the air chute 40 is provided with a plurality of airflow outlets 404, and the radiation source 30 is disposed between adjacent airflow outlets 404, as shown in FIG. 13B.

Specifically, one air duct 40 may be provided with a plurality of air flow outlets 404, and the plurality of radiation sources 30 arranged in a dispersed manner may be disposed in the air duct 40 in a star shape. Alternatively, there may be a plurality of air ducts 40, with each air duct 40 being provided with an air flow outlet 404. The plurality of gas flow outlets 404 may be in the form of a star embedded in the gap of the plurality of radiation sources 30. A hybrid arrangement of the above two is also possible, and is not particularly limited herein.

In one embodiment, referring to fig. 8, 10 and 12, the drying apparatus 100 further includes a partition 50, and the partition 50 is disposed in the air duct 40. In this manner, a portion of the radiation source 30 may be shielded by the spacer 50, the portion of the shielded radiation source 30 that is not blown by the airflow within the air chute 40 may be considered as a first portion, which may be considered as being outside the air chute 40. In one example, the portion of the radiation source 30 that is shielded may be at least one of a portion of an outer wall of the reflector cup 302 and the base 310 of the reflector cup 302. The outer wall of the partition 50 may be provided in the form of a wind guide, for example, the outer wall of the partition 50 may be provided in a streamline shape to reduce wind noise and wind resistance. Further, a heat sink (not shown) is disposed on an outer wall of the spacer 50. Thus, the heat dissipation efficiency can be accelerated. Specifically, the heat dissipation member may include one or any combination of heat dissipation fins, a heat dissipation air duct, a heat pipe, and a heat dissipation plate.

In one embodiment, the partition 50 is disposed at the airflow outlet 404 of the air chute 40. As such, the partition 50 provided at the airflow outlet 404 has less adverse effect on the airflow within the air chute 40.

In one embodiment, the spacer 50 is coupled to at least one of the radiation source 30, the housing 10, and the air duct 40.

In particular, the coupling means may be a detachable connection, or a fixed connection.

In one embodiment, the airflow flows within a channel formed by the inner wall of the air chute 40 and the outer wall of the partition 50. In this manner, the air flow may exit the drying apparatus 100 through the passage, and may carry away heat of the partition 50.

Specifically, the spacer 50 may absorb heat generated when the radiation source 30 operates and thus increase in temperature. When the air current passes through the channel, the heat can be dissipated to the isolating piece 50, and the service life of the isolating piece 50 is guaranteed.

In one embodiment, a portion of radiation source 30 is housed within spacer 50. In this manner, the partition 50 may shield a portion of the radiation source 30 from being blown by the air flow in the air duct 40.

Specifically, the radiation source 30 may include a reflector cup 302, and a portion of the outer wall of the reflector cup 302 may be accommodated in the partition 50, which may serve as a first portion, to avoid excessive heat dissipation of the radiation source 30 caused by direct blowing of the air flow of the air duct 40, so as to ensure that the radiation source 30 is maintained at a proper working temperature during operation.

In one embodiment, radiation source 30 is in coplanar contact with spacer 50. In this manner, the adverse effects on gas flow at the junction formed by radiation source 30 and spacer 50 may be reduced.

In particular, the coplanar contact may allow the junction formed by the radiation source 30 and the spacer 50 to be a smooth transition, and the airflow may smoothly flow through the junction, thereby reducing wind noise and wind resistance. In one example, the junction may form a streamlined face.

In one embodiment, referring to fig. 8, 10 and 12, the inner wall of the spacer 50 and the outer wall of the radiation source 30 define a cavity 60, and the first portion includes the outer wall portion of the radiation source 30 defining the cavity 60. Specifically, the outer wall portion of the radiation source 30 may be a portion of the outer wall of the reflector cup 302, or the base 310 of the reflector cup 302, or a portion of the base 310, or include a portion of the outer wall of the reflector cup 302 and the base 310 of the reflector cup 302, or include a portion of the outer wall of the reflector cup 302 and a portion of the base 310 of the reflector cup 302. That is, the outer wall of the radiation source 30 surrounding the cavity 60 is shielded by the partition 50, so that the air flow of the air duct 40 cannot blow directly.

In one embodiment, the air duct 40 exchanges heat with the radiation source 30 by at least one of thermal conduction and thermal convection via the partition 50. In this way, the heat of the radiation source 30 can be properly dissipated without the temperature being too high or too low during operation.

In one embodiment, the drying apparatus 100 further includes a control board (not shown) disposed within the partition 50. In this way, the space inside the casing 10 can be fully utilized, and the structure of the drying apparatus 100 can be made compact.

Specifically, a control board may be placed in the cavity 60, which may include a circuit board and various components mounted on the circuit board, such as a processor, a controller, a power supply, a switching circuit, a detection circuit, etc. The control board may electrically connect the radiation source 30 and the motor 20, as well as other electrical components, such as lights, indicator lights, sensors, etc. The control board is used to control the operation of the drying apparatus 100, including but not limited to controlling the operation mode, operation duration, motor speed, power of the radiation source 30, etc. of the drying apparatus 100.

In one embodiment, the drying apparatus 100 includes a power source, a portion of which is disposed within the spacer 50, the power source being electrically connected to at least one of the radiation source 30 and the control board. As such, heat from the power supply can be dissipated through the spacer 50, and the power supply can provide power to at least one of the radiation source 30 and the control board.

In particular, the power source may include one or more batteries, which may be rechargeable batteries. The power supply may be a power supply dedicated to the radiation source 30, a power supply dedicated to the control panel, or both the radiation source 30 and the control panel. The control panel can be connected with a switch, and the on-off of the switch is controlled to control whether the power supply supplies power to the radiation source 30.

In one embodiment, the motor 20 is located downstream of at least a portion of the power source in the direction of air flow. Therefore, the heat generated during the working of the power supply is taken away by the wind of the motor, and the normal working of the power supply is ensured.

Referring to fig. 1, the power source 70 may include a plurality of batteries, and the motor 20 may be located downstream of all the batteries, or the motor 20 may be located between a plurality of batteries, for example, the lower portion of the handle 104 is provided with batteries, the middle portion is provided with the motor 20, the upper portion is provided with batteries, the lower portion of the handle is provided with batteries, the upper portion is provided with the motor 20, and the body 102 is provided with batteries. In this way, the airflow (wind) generated by the motor 20 can flow through at least part of the power supply, so that the portion of the power supply blown by the wind can be dissipated.

Additionally, typically, the power source 70 is heavier than the motor 20, and the motor 20 is located downstream of at least a portion of the power source 70 to avoid making the drying apparatus 100 heavy. Further, the airflow resistance generated by the motor 20 can also be reduced.

In one embodiment, the drying apparatus 100 includes a safety sensor (not shown) electrically connecting the power source 70 and the radiation source 30, the safety sensor being configured to disconnect the power from the power source 70 when the temperature of the radiation source 30 is greater than a set temperature. In this way, the safety of the drying apparatus 100 can be improved.

Specifically, the temperature of the radiation source 30 may reach several hundred degrees or thousands of degrees during operation, and if the temperature of the radiation source 30 is abnormally increased due to an abnormal operation, an accident of burning may be caused to the user. Therefore, the safety sensor is provided, when the temperature of the radiation source 30 is higher than the set temperature, the power supply of the power supply 70 can be cut off, so that the radiation source 30 stops working, the temperature is reduced, safety accidents are avoided, and the safety of the drying equipment 100 is improved. The specific value of the set temperature can be set according to the requirement, and is not particularly limited herein.

In one example, the safety sensor may include a thermostat. The parameter selection of the thermostat can be determined according to the value of the set temperature.

In one embodiment, the radiation source 30 is disposed at the longitudinal axis L of the air chute 40. Therefore, the radiating efficiency of the airflow to the periphery of the radiation source 30 is basically consistent, the situation that the local temperature of the radiation source 30 is high and the local temperature is low is avoided, the working efficiency of the radiation source 30 is kept, and the intensity of infrared radiation is stable.

In one example, the number of radiation sources 30 is single, with a single radiation source 30 disposed at the longitudinal axis L of the tunnel 40. In one example, the number of radiation sources 30 is plural, with the plurality of radiation sources 30 being disposed circumferentially about the longitudinal axis L of the wind tunnel 40.

The radiation source 30 may comprise a reflector cup 302 and a luminescent element 304, the luminescent element 304 being located within the reflector cup 302, a first portion comprising a portion of the outer wall of the reflector cup 302, and a second portion comprising another portion of the outer wall of the reflector cup 302. For example, in fig. 1, the second portion may be a portion of the outer wall of the reflector cup 302 that directly contacts the outer wall of the air duct 40, and the first portion may be another portion of the outer wall of the reflector cup 302 that is connected to the outer wall of the air duct 40 via the second portion. In other embodiments, the second portion may comprise a portion of the base 310 of the reflector cup 302, wherein a portion of the base 310 is in direct contact with the outer wall of the air chute 40. It is understood that in other embodiments, the first portion may comprise the base 310 of the reflector cup 302, or a portion of the base 310.

Preferably, the surface area of the first portion is greater than the surface area of the second portion. In this manner, proper heat dissipation of the radiation source 30 and maintenance of a proper operating temperature of the radiation source 30 can be achieved.

Specifically, the second portion is in heat exchange with the air duct 40, and the heat exchange manner may include at least one of heat conduction and heat convection. By simply setting the surface area, most of the heat of the radiation source 30 can maintain the operating temperature of the radiation source 30, while additional heat is dissipated by the second portion through heat exchange with the air duct 40.

In the embodiment shown in fig. 1, 4 and 6, the second portion is in direct contact with the outer wall of the air chute 40. Specifically, in one example, a portion of the outer wall of the reflector cup 302 directly contacts the outer wall of the air chute 40 for heat exchange. Specifically, a portion of the outer wall of the reflector cup 302 may form a portion of the outer wall of the air duct 40 to directly contact another portion of the outer wall of the air duct 40, that is, the portion of the outer wall of the reflector cup 302 serves as both a portion of the outer wall of the reflector cup 302 and a portion of the outer wall of the air duct 40. In addition, a part of the outer wall of the light reflecting cup 302 may be located outside the outer wall of the air duct 40 and directly contact the outer wall of the air duct 40.

In the embodiment shown in fig. 14-16, the second portion is in contact with the air duct 40 through an additional heat dissipation structure 80 for heat exchange. Specifically, the heat dissipation structure 80 may include a metal (e.g., aluminum, copper, aluminum alloy, copper alloy, etc.), a carbon fiber material, etc., which facilitates heat dissipation. The specific form of the heat dissipation structure 80 is not limited, and may be, for example, one or any combination of heat dissipation fins, heat dissipation plates, heat dissipation air ducts, and heat pipes. The heat dissipation structure 80 may exchange heat between the air duct 40 and the second portion by at least one of heat conduction and heat convection. In the illustrated embodiment, the heat dissipation structure 80 includes a plurality of fins spaced apart from each other, and an airflow channel is formed between two adjacent fins, so that the airflow can flow through the airflow channel to take away heat, thereby improving the heat dissipation efficiency.

In one embodiment, the heat dissipating structure 80 connects the second portion and the outer wall of the air chute 40, that is, the heat dissipating structure 80 is disposed between the air chute 40 and the second portion. In one example, the second portion is a portion of the outer wall of the reflector cup 302, and the heat dissipation structure 80 connects the portion of the outer wall of the reflector cup 302 with the outer wall of the air chute 40.

In one embodiment, please refer to fig. 14 and 15, a portion of the heat dissipation structure 80 is located in the air duct 40. In one example, the second portion is a portion of the outer wall of the reflector cup 302, one end of the heat dissipation structure 80 is connected to the portion of the outer wall of the reflector cup 302, the other end of the heat dissipation structure 80 extends into the air duct 40, and the air flow in the air duct 40 directly blows to the end of the heat dissipation structure 80. Further, a portion of the heat dissipation structure 80 located inside the air duct 40 may be formed as the first air guide. In this manner, the adverse effect of the portion of the heat dissipation structure 80 on the airflow can be reduced, and wind noise, wind resistance, and the like can be reduced.

Specifically, the first wind guide may have a streamlined windward surface on which the airflow can smoothly flow. Further, the first air guide is integrally connected to the second air guide in the air duct 40. In this way, on the one hand, the second air guide in the air duct 40 can guide the air flow, and on the other hand, the heat exchange efficiency can be improved. The second air guiding member may be a flow guiding strip and/or a flow guiding groove formed on the inner wall of the air duct 40, and the second air guiding member may also be arranged in a streamline shape. Through the setting of second wind-guiding piece, can be so that carry out rectification and direction adjustment to the air current. The first air guide piece is integrally connected with the second air guide piece in the air duct 40, so that air flow passes through the first air guide piece and the second air guide piece in a seamless connection mode, and wind noise, wind resistance and the like are further reduced.

In one embodiment, the heat dissipating structure 80 forms a portion of the outer wall of the air chute 40. That is, a portion of the outer wall of the duct 40 may form the heat dissipation structure 80 to exchange heat with a second portion (e.g., a portion of the outer wall of the reflector cup 302).

In one embodiment, the heat dissipating structure 80 forms a portion of the inner wall of the air chute 40. That is, a portion of the inner wall of the air duct 40 may form the heat dissipating structure 80 and may exchange heat with a second portion (e.g., a portion of the outer wall of the reflector cup 302) through the wall of the air duct 40 via the connecting structure.

In the embodiment of the present application, the outer wall and the inner wall of the air duct 40 may be two surfaces of one component, or two surfaces of two components, and the two components are connected to form the air duct 40. And is not particularly limited herein.

In one embodiment, light emitting member 304 emits radiation containing an infrared band. Therefore, the object can be dried by utilizing the radiation of the infrared wave band emitted by the luminous piece 304, and the drying effect is good.

Specifically, the radiation of the infrared band may include radiation of the far infrared band, radiation of the near infrared band, and the like. In one example, the infrared band of radiation emitted by the glowing member 304 can cover an infrared spectrum of 0.7 μm or more. In one example, the wavelength of the infrared radiation emitted by the light emitting member 304 is in the range of 0.7 μm to 20 μm.

In further examples, the radiation emitted by the light emitting member 304 may substantially cover the visible spectrum from 0.4 μm to 0.7 μm and the infrared spectrum above 0.7 μm.

In one embodiment, the light emitting member 304 includes at least one of a halogen lamp, a ceramic, a graphene, and a light emitting diode.

Specifically, examples of the ceramic may include a Positive Temperature Coefficient (PTC) heater and a cermet heater (MCH). The ceramic light emitter 304 comprises a metallic heating element embedded in a ceramic, such as tungsten embedded in silicon nitride or silicon carbide. The glowing member 304 can be provided in the form of a wire (e.g., a filament). The wire may be patterned (e.g., formed as a spiral filament) to increase its length and/or surface. The glowing member 304 can also be provided in the form of a rod. In one example, the glowing member 304 can be a silicon nitride rod, a silicon carbide rod, or a carbon fiber rod having a predetermined diameter and length.

The light emitting member 304 may be selected from one of a halogen lamp, a ceramic, graphene, and a light emitting diode, or the light emitting member 304 may be selected from a combination of two or more of a halogen lamp, a ceramic, graphene, and a light emitting diode. And is not particularly limited herein.

In order to have a higher infrared emissivity, it is necessary to raise the temperature of the light emitting member 304. The temperature of the light emitting member 304 may be at least 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, or 2000 degrees celsius (deg.c). In one example, the temperature of the light emitting member 304 may be 900 to 1500 degrees celsius. The central wavelength or wavelength range of the infrared radiation emitted by the light emitting element 304 may be tunable, e.g. at least tunable 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5 or 10.0 μm. The power density of the radiation emitted from the glowing member 304 can be adjusted in different operating modes of the drying apparatus 100 (e.g., flash drying mode, hair health mode, etc.), for example, by varying the voltage and/or current supplied to the drying apparatus 100.

The reflector cup 302 may be configured to adjust the direction of radiation emitted from the glowing member 304. For example, the reflector cup 302 may be configured to reduce the divergence angle of the reflected radiation beam.

The reflective surface of the reflector cup 302 may be coated with a coating material having a high reflectivity for the wavelength or wavelength range of the radiation emitted by the luminescent member 304. For example, the coating material may have high reflectivity for wavelengths in both the visible and infrared spectrum. Materials with high reflectivity can have high efficiency in reflecting radiant energy. Examples of the coating material may include a metal material and a dielectric material. The metal material may include, for example, silver and aluminum. The dielectric coating may have alternating layers of dielectric material, such as magnesium fluoride. The reflective surface provided with the coating may have a reflectivity of at least 90% (e.g. 90% of incident radiation is reflected by the reflective surface of the reflector cup 302), 90.5%, 91%, 91.5%, 92%, 92.5%, 93%, 93.5%, 94%, 94.5%, 95%, 95.5%, 96%, 96.5%, 97%, 97.5%, 98%, 98.5%, 99%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9% or more. In some examples, the reflective surface provided with the coating may have a reflectivity of substantially 100%, which means that substantially all radiation emitted by the luminescent member 304 may be reflected towards the outside of the drying apparatus 100. Thus, even if the temperature of the luminescent member 304 is high, the temperature on the reflective surface of the reflector cup 302 is not substantially increased by the radiation emitted from the luminescent member 304.

In one embodiment, the axial cross-section of the reflective surface of the reflector cup 302 is in the shape of a polynomial curve. In this way, the reflective surface can be formed with a focal point to facilitate directing infrared radiation and reducing the divergence angle of the reflected radiation beam.

Specifically, the polynomial curve may have a shape including a parabola, an ellipse, a hyperbola, and the like. In one example, the axial cross-section of the reflective surface of the reflector cup 302 is parabolic in shape.

In one embodiment, the light emitter 304 is disposed at a focal point of the reflective surface of the reflector cup 302. In this way, the infrared beam emitted by the light-emitting member 304 can be reflected by the reflecting surface and then emitted out of the opening of the reflecting cup 302 in a substantially parallel manner, so that the infrared radiation emitted by the drying apparatus 100 has good directivity.

Specifically, the light-emitting member 304 is disposed at a focus of the reflective surface of the reflective cup 302, and the infrared radiation beams emitted by the light-emitting member 304 at the focus are emitted from the opening of the reflective cup 302 substantially in parallel after being reflected by the reflective surface of the reflective cup 302.

In other embodiments, the glowing member 304 can also be positioned off the focal point of the parabola such that the reflected infrared radiation beam can converge or diverge at a distance in front of the drying apparatus 100. The position of the light-emitting member 304 within the reflector cup 302 is adjustable, thereby changing the degree of convergence and/or direction of the output radiation beam. The shape of the reflector cup 302 and the shape of the glowing member 304 may be optimized and varied with respect to each other to output a desired heating power at a desired location of the drying apparatus 100.

In addition, a thermal insulating material (e.g., glass fiber, mineral wool, cellulose, polyurethane foam, or polystyrene) may be interposed between the light emitting member 304 and the reflective cup 302 such that the light emitting member 304 is thermally insulated from the reflective cup 302. The thermal insulation may keep the temperature of the reflector cup 302 from increasing even if the temperature of the light emitter 304 is high. A thermal insulating material may also be interposed between the periphery of the optical element and the reflector cup 302 to insulate the optical element from the reflector cup 302.

In one embodiment, referring to fig. 17A-17B, the radiation source 30 includes an optical element 90, and the optical element 90 is disposed at the opening of the reflector cup 302 for filtering or reflecting the non-infrared radiation. In this way, only infrared radiation can be directed to the object being dried.

In particular, optical element 90 may include a lens, reflector, prism, grating, beam splitter, filter, or a combination thereof that alters or redirects light. In some embodiments, the optical element 90 may be a lens. In some embodiments, the optical element 90 may be a fresnel lens.

The optical element 90 may be made of a material having a high infrared transmittance. Examples of materials for optical element 90 may include oxides (e.g., silicon dioxide), metal fluorides (e.g., barium fluoride), metal sulfides or metal selenides (e.g., zinc sulfide, zinc selenide), and crystals (e.g., crystalline silicon, crystalline germanium). Further, either or both sides of the optical element 90 may be coated with a material that absorbs or reflects in the visible and ultraviolet spectrum so that only wavelengths in the infrared range may pass through the optical element 90. The optical element 90 may filter out (e.g., absorb) radiation that is not in the infrared spectrum. The infrared transmittance of optical element 90 can be at least 95% (e.g., 95% of incident radiation in the infrared spectrum is transmitted through optical element 90), 95.5%, 96.0%, 96.5%, 97.0%, 97.5%, 98.0%, 98.5%, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9%, or more. In one example, the infrared transmittance of optical element 90 may be 99%.

In one example, the light emitter 304 may emit radiation having a wavelength of 0.4 μm to 20 μm, the reflector cup 302 may reflect all radiation toward the optical element 90 (e.g., no radiation is absorbed at the reflective surface), and the optical element 90 may filter out any visible spectrum wavelengths between 0.4 μm to 0.7 μm from the reflected radiation, such that only radiation in the infrared spectrum exits the radiation source 30.

In one embodiment, the optical element 90 is sealed at the opening of the reflector cup 302. In this manner, a relatively sealed interior space may be formed within the reflector cup 302.

Specifically, the interior space of the reflector cup 302 may be configured to have a degree of vacuum. The pressure within the interior of the reflector cup 302 may be less than 0.9 standard atmosphere (atm), 0.8atm, 0.7atm, 0.6atm, 0.5atm, 0.4atm, 0.3atm, 0.2atm, 0.1atm, 0.05atm, 0.01atm, 0.001atm, 0.0001atm or less. In one embodiment, the interior of the reflector cup 302 is in a near vacuum state, for example the pressure within the interior of the reflector cup 302 may be about 0.001atm or less. The vacuum may inhibit evaporation and/or oxidation of the phosphor 304 and extend the life of the radiation source 30. The vacuum may also prevent thermal convection or conduction between the glowing member 304 and the optical element 90 and/or the reflector cup 302.

In one embodiment, the reflector cup 302 is filled with a shielding gas, which may be a non-oxidizing gas (e.g., an inert gas) in an amount that maintains a vacuum at a level that reduces the temperature rise of the gas inside the space formed by the reflector cup 302 and the interior surfaces of the optical element 90. This temperature rise, although small, is caused by thermal convection and conduction. Examples of the non-oxidizing gas may include nitrogen (N2), helium (He), argon (Ar), neon (Ne), krypton (Kr), xenon (Xe), radon (Rn), and nitrogen (N2). The presence of the inert gas may further protect the material of the luminescent member 304 from oxidation and evaporation.

In the embodiment shown in fig. 17A, a plurality of radiation sources 30 share one optical element 90, that is, one optical element is provided at the opening of the reflector cups 302 of all the radiation sources. In the embodiment shown in fig. 17B, one optical element 90 is provided for each radiation source, i.e. one optical element 90 is provided at the opening of one reflector cup 302.

In one embodiment, the drying apparatus 100 further comprises a control board electrically connected to the radiation source 30 and/or the motor 20. In this way, control of the drying apparatus 100 can be achieved.

Specifically, the control board may include a circuit board and various components mounted on the circuit board, such as a processor, a controller, a power supply 70, a switching circuit, a detection circuit, and the like. The control board may electrically connect the radiation source 30 and the motor 20, as well as other electrical components, such as lights, indicator lights, sensors, etc. The control board is used to control the operation of the drying apparatus 100, including but not limited to controlling the operation mode, operation duration, motor speed, power of the radiation source 30, etc. of the drying apparatus 100.

In one embodiment, the drying apparatus 100 includes a power source 70 located within the housing 10, the power source 70 being electrically connected to a control board, which is electrically connected to the radiation source 30 and the motor 20. In this manner, the power usage of the radiation source 30 and the motor 20 can be controlled by the control board.

Specifically, the control board may convert the voltage of the power source 70 into a voltage suitable for the radiation source 30 and a voltage suitable for the motor 20 corresponding to the operation mode of the drying apparatus 100, so that the radiation source 30 and the motor 20 can operate in the operation mode. For example, by adjusting the voltage, the radiation power of the radiation source 30, the rotation speed of the motor 20 (i.e., the rotation speed of the fan blades), and the like can be adjusted. Or power source 70 to control the length of time radiation source 30 and motor 20 are operated. It is understood that in other embodiments, the power source 70, control board, radiation source 30 and motor 20 may be connected in other ways. In one example, the power source 70 may be mounted in the handle 104.

In one embodiment, the power source 70 includes a rechargeable battery. Thus, the drying equipment 100 can be separated from the constraint of the wiring harness when in use, and the user experience is improved.

In particular, the rechargeable battery may be a lithium ion battery, or other rechargeable battery. The rechargeable battery can be one or more, and a plurality of batteries can be connected in series, in parallel or in series and parallel. And is not particularly limited herein. In addition, to facilitate charging of the battery, the body 102 or the handle 104 may be provided with a charging interface. It is understood that the charging interface may be a wired charging interface or a wireless charging interface, and is not limited in particular. In addition, a battery cover may be provided on the handle 104 for facilitating removal of the battery, and the battery cover may be removable for facilitating removal and installation of the battery.

In one embodiment, the drying apparatus 100 further comprises a sensor that senses a status of at least one of the drying apparatus 100, an operating environment in which the drying apparatus 100 is located, an air flow, or a recipient of radiation. Therefore, the operation of the drying device 100 can be controlled according to the signal of the sensor, and the user experience is improved.

Specifically, the state includes at least one of temperature, humidity, distance, attitude, motion, flow, flux.

The sensor may include at least one of a temperature sensor, a proximity/ranging sensor, a humidity sensor, an attitude sensor, a flow sensor, a flux sensor. A sensor may be placed, for example, on the airflow outlet 404 side of the casing 10 to monitor the state (e.g., humidity) of the object being dried (i.e., the recipient of the airflow or radiation). The area over which the airflow is applied to the object to be dried may generally comprise an area of infrared radiation (e.g., a spot of radiation) on the object to be dried. The air flow may accelerate the evaporation of water from the object to be dried by blowing away humid air around the object to be dried. The air flow may also lower the temperature of the dried object irradiated by the infrared radiation to avoid damage to the dried object. The temperature of the object to be dried and the water on the object to be dried must be maintained within a proper range to accelerate the evaporation of the water from the object to be dried while keeping the object to be dried from overheating. A suitable temperature range may be 50 to 60 degrees celsius. The speed of the air flow blown onto the object to be dried can be adjusted to keep the temperature of the object to be dried within a suitable temperature range, for example, by blowing away hot water and excess heat. The proximity/ranging sensor and the temperature sensor may operate together to determine the temperature of the dried object and adjust the speed of the air flow by feedback loop control to maintain a constant or programmed temperature of the dried object. The object to be dried may be, for example, hair.

The posture sensor may acquire the posture and movement of the drying apparatus 100. For example, the attitude sensor may include an inertial detection module (IMU), which may detect the state of at least one of a roll axis, a pitch axis, and a yaw axis of the drying apparatus 100, and may also detect whether there is motion in the respective axis. For example, when the user blows against a part of the object to be dried for a long time, the attitude sensor detects that the drying apparatus 100 is not moving for a long time, and then, in order to avoid damage to the part of the object to be dried, the control board may control the rotation speed of the motor 20 to decrease and/or the radiation intensity of the radiation source 30 to decrease according to data output by the attitude sensor, and may also control the drying apparatus 100 to perform sound-light, vibration prompt, and the like.

The flow sensor may detect the flow rate of the airflow so that the control board may control the rotational speed of the motor 20 to accommodate temperature control of the object to be dried. Similarly, the control board may also control the operation of the motor 20 and/or the radiation source 30 based on flux data output by the flux sensor.

In one embodiment, the sensor is disposed within the housing 10 and is located at the airflow outlet 404 of the air chute 40 and/or at the opening of the radiation source 30. In this way, a more accurate control of the gas flow conditions and/or radiation conditions can be achieved.

Specifically, the sensor is located at the airflow outlet 404 of the air duct 40, so that the state of the airflow leaving the drying apparatus 100, such as flow, flux, temperature, humidity, etc., can be detected, the state of the airflow leaving the drying apparatus 100 can be more accurately controlled, and the internal environment of the drying apparatus 100 is prevented from affecting the detection of the state of the airflow. Similarly, the sensor is located at the opening of the radiation source 30, so that the radiation state, such as intensity, etc., leaving the drying apparatus 100 can be detected, the radiation state leaving the drying apparatus 100 can be controlled more accurately, and the internal environment of the drying apparatus 100 is prevented from affecting the detection of the radiation state.

In summary, the drying apparatus 100 of the above embodiment includes, but is not limited to, the following technical effects:

1. too much heat dissipation relative to a conventional drying apparatus 100 (e.g., the entire outer wall of the reflector cup 302 is directly within the duct 40) can affect radiation efficiency, since excessive heat dissipation means that the light 304 needs to convert additional electrical energy into heat energy to maintain the necessary temperature for generating blackbody radiation. The drying apparatus 100 of the present embodiment is configured to properly reduce the temperature of the radiation source 30, thereby prolonging the useful life of the illuminating member 304, while not reducing the temperature too low to cause waste of electrical energy (more electrical energy is needed to maintain the temperature of the blackbody radiation).

2. The unnecessary heat of radiation source 30 is taken away by wind, lets wind temperature rise several degrees (1 ~ 5 degrees), though is not enough to produce decisive influence to dry hair totally, has nevertheless promoted the body sense that the human back people was blown to wind, lets the people can not feel by the cold wind blowing, has promoted user experience.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (58)

1. Drying apparatus, characterized in that it comprises:

the air duct is arranged in the shell;

a motor located in the housing and configured to generate an airflow in the air duct;

a radiation source housed in the housing and configured to generate infrared radiation and direct the infrared radiation outside the housing, the radiation source comprising:

the first part is positioned outside the air duct so as to keep the proper working temperature of the radiation source when the radiation source works;

and the second part is connected with the first part and exchanges heat with the air channel.

2. Drying apparatus according to claim 1 in which there is no additional heating apparatus in the housing.

3. Drying apparatus according to claim 2, wherein the heating apparatus comprises a heating wire.

4. The drying apparatus of claim 1, wherein the radiation source and the air duct are secured within the housing.

5. The drying apparatus of claim 1, wherein the surface area of the first portion is greater than the surface area of the second portion.

6. Drying apparatus according to claim 1, wherein the radiation source comprises a reflector cup and a luminescent element, the luminescent element being located within the reflector cup, the first portion comprising a portion of an outer wall of the reflector cup and the second portion comprising another portion of the outer wall of the reflector cup.

7. Drying apparatus according to claim 6 in which the second portion is in direct contact with the outer wall of the air duct or is in contact with the air duct via an additional heat sink structure for heat exchange.

8. Drying apparatus according to claim 7, wherein the heat-dissipating structure connects the second portion to an outer wall of the air duct, or a portion of the heat-dissipating structure is located within the air duct, or the heat-dissipating structure forms a portion of an outer wall of the air duct, or the heat-dissipating structure forms a portion of an inner wall of the air duct.

9. Drying apparatus according to claim 6 in which the glowing member emits radiation containing an infrared band.

10. Drying apparatus according to claim 6, wherein the light emitting element comprises at least one of a halogen lamp, a ceramic, graphene, a light emitting diode.

11. Drying apparatus according to claim 6 in which the reflecting surface of the reflector cup is in the shape of a polynomial curve in axial cross-section.

12. Drying apparatus according to claim 11 in which the light emitter is located at the focus of the reflective surface of the reflector cup.

13. Drying apparatus according to claim 6, wherein the radiation source comprises an optical element disposed at the opening of the reflector cup for filtering or reflecting radiation in the non-infrared band.

14. Drying apparatus according to claim 13 in which the optical element is sealed at the opening of the reflector cup.

15. Drying apparatus according to claim 14 in which the reflector cup is substantially evacuated or filled with a protective gas.

16. Drying apparatus according to claim 1, wherein the number of radiation sources is plural, the plural radiation sources being configured such that radiation from the radiation sources forms a spot at a distance outside an open side of the radiation sources.

17. Drying apparatus according to claim 6, further comprising a control board electrically connected to the radiation source and/or the motor.

18. The drying apparatus of claim 17, comprising a power source located within the housing, the power source being electrically connected to the control board, the control board being electrically connected to the radiation source and the motor.

19. The drying apparatus of claim 18, wherein the power source comprises a rechargeable battery.

20. The drying apparatus of claim 1, further comprising a sensor that senses a status of at least one of the drying apparatus, a working environment in which the drying apparatus is located, the airflow, or a recipient of radiation.

21. The drying apparatus of claim 20, wherein the state includes at least one of temperature, humidity, distance, attitude, motion, flow, flux.

22. Drying apparatus according to claim 21, wherein the sensor is disposed within the housing at the airflow outlet of the air duct and/or at the opening of the radiation source.

23. Drying apparatus according to claim 1, wherein the fan blade passing frequency of the motor is close to the frequency range of the ultrasonic waves.

24. Drying apparatus according to claim 23, characterised in that the rotational speed of the motor is equal to or greater than 50000 rpm.

25. Drying apparatus according to claim 24 in which the number of blades of the motor is a prime number greater than 5.

26. Drying apparatus according to claim 1 in which the motor is secured within the housing by a shock absorbing means.

27. Drying apparatus according to claim 26 in which the damping means is fixedly connected to the radiation source.

28. The drying apparatus of claim 26, wherein the shock absorbing device includes a sleeve formed of an elastomeric material, the sleeve including a snap-fit portion extending around the sleeve flexibly coupled to at least one of the housing, the air duct, and the radiation source.

29. Drying apparatus according to claim 28 in which the snap-in portion is a projection formed from a rubber material.

30. Drying apparatus according to claim 1, wherein the drying apparatus comprises a power source, the motor being located downstream of at least part of the power source in the direction of air flow.

31. Drying apparatus according to claim 1, wherein the second portion is located downstream of the motor in the direction of air flow.

32. Drying apparatus according to claim 1 in which, in use, the radiation source is located between the air duct and the housing.

33. The drying apparatus of claim 32, wherein all of said radiation sources are located outside of said air duct.

34. The drying apparatus of claim 33, wherein the radiation source is disposed about an airflow outlet of the air chute.

35. The drying apparatus of claim 33, wherein the radiation source is disposed on a side of the airflow outlet of the air chute.

36. Drying apparatus according to claim 32 in which the second portion is integrally connected to the air duct.

37. Drying apparatus according to claim 32 in which a heat sink is provided between the air duct and the second portion.

38. The drying apparatus of claim 37, wherein the heat dissipation structure thermally exchanges heat between the air duct and the second portion by at least one of thermal conduction and thermal convection.

39. The drying apparatus of claim 37, wherein a portion of said heat dissipating structure is located within said air duct, said portion of said heat dissipating structure being formed as a first air guide.

40. The drying apparatus as claimed in claim 39, wherein said first air guide is integrally connected to said second air guide in said air duct.

41. The drying apparatus of claim 32, including a control panel within the housing, the control panel being disposed around the outer wall of the air duct.

42. Drying apparatus according to claim 1 in which the radiation source is surrounded by the air duct.

43. The drying apparatus of claim 42, wherein said radiation source is plural in number, and a plurality of said radiation sources are arranged dispersed in said air duct.

44. The drying apparatus of claim 42, wherein the air duct is provided with a plurality of airflow outlets, the radiation source being arranged between adjacent airflow outlets.

45. The drying apparatus of claim 42, further comprising a partition disposed within the air duct.

46. The drying apparatus of claim 45, wherein the partition is disposed at an airflow outlet of the air duct.

47. The drying apparatus of claim 46, wherein the partition is coupled to at least one of the radiation source, the housing, and the air duct.

48. The drying apparatus of claim 45, wherein the airflow flows within a channel formed by an inner wall of the air duct and an outer wall of the partition.

49. The drying apparatus of claim 47, wherein a portion of the radiation source is housed within the partition.

50. The drying apparatus of claim 47, wherein the radiation source is in coplanar contact with the partition.

51. The drying apparatus of claim 47, wherein an inner wall of the partition and an outer wall of the radiation source enclose a cavity, the first portion comprising an outer wall portion of the radiation source enclosing the cavity.

52. The drying apparatus according to any one of claims 47 to 51, wherein the air duct exchanges heat with the radiation source via the partition by at least one of thermal conduction and thermal convection.

53. The drying apparatus of any one of claims 47-51, further comprising a control board disposed within the partition.

54. The drying apparatus of claim 53, comprising a power source, a portion of the power source disposed within the partition, the power source electrically connected to at least one of the radiation source and the control board.

55. The drying apparatus of claim 54, comprising a safety sensor electrically connecting the power source and the radiation source, the safety sensor configured to disconnect power from the power source when a temperature of the radiation source is greater than a set temperature.

56. Drying apparatus according to any one of claims 45 to 55 in which the outer wall of the partition is streamlined.

57. Drying apparatus according to any of claims 45 to 55, wherein the outer wall of the partition is provided with a heat sink.

58. Drying apparatus according to any one of claims 42 to 57 in which the radiation source is disposed at the longitudinal axis of the tunnel.

Images