CN115605113A

CN115605113A - Drying apparatus

Info

Publication number: CN115605113A
Application number: CN202180027167.5A
Authority: CN
Inventors: 唐尹; 徐兴旺; 黄通尧
Original assignee: Shenzhen Ruyuan Technology Co ltd
Current assignee: Shenzhen Ruyuan Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-01-13
Also published as: WO2023123518A1

Abstract

A drying device (100) comprises a shell (12), a motor (14) and a plurality of heat generating sources, wherein an air duct (20) is arranged inside the shell (12), and the air duct (20) is provided with an air flow inlet (22) and an air flow outlet (24). A motor (14) is disposed within the housing (12) and is configured to create an airflow within the air duct (20). At least one heat generating source is disposed in the housing (12) downstream of the air chute (20) and adjacent the airflow outlet (24), and at least one heat generating source is disposed in the housing (12) upstream of the air chute (20).

Description

Drying apparatus

Technical Field

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

Background

When the drying apparatus is in operation, such as a hair dryer, there are certain operational requirements that the object to be dried (e.g., hair) needs to be styled in a short period of time, and that the output power is required to raise the temperature of the moisture on the hair in a short period of time to promote evaporation of the moisture. Currently, a conventional hair dryer generally includes a heating wire, and when the heating wire is operated, a motor sends air sucked into the hair dryer to the heating wire to heat the air and then blows hot air to a user's hair.

However, high temperature air flow is output in a short time, and a high power heating wire is required to realize the output. The high-power heating wire has high requirements on space arrangement, local overheating of the drying equipment can be caused during working, the safety of the high-power heating wire can be reduced due to high temperature, and the reliability of the drying equipment can be influenced.

Disclosure of Invention

The embodiment of the application provides drying equipment.

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

the air duct is arranged in the shell and provided with an airflow inlet and an airflow outlet;

the motor is arranged in the shell and is used for forming airflow in the air duct;

a plurality of heat generating sources, at least one heat generating source being disposed in the housing downstream of the air duct and adjacent the airflow outlet;

at least one heat generating source is disposed within the housing and upstream of the air duct.

Among the above-mentioned drying equipment, use two at least sources that generate heat, under the prerequisite that keeps the same drying efficiency, reducible every source self that generates heat's power to promote the security in every source that generates heat, can not make the heat concentrate a position in drying equipment moreover, thereby guarantee drying equipment's reliability. And a plurality of heating sources with lower power replace one heating source with higher power, so that the design of the related internal structure is more flexible, the requirements on flame retardance and heat insulation indexes of related parts are reduced, and particularly, the radial size of the drying equipment with highly integrated internal structure can be greatly reduced. Further, the total power of the plurality of heat generating sources can be set, and the object can be dried quickly in a short time or dried at a low temperature for a long time.

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 to 15 are schematic structural views of a drying apparatus according to an embodiment of the present application;

fig. 16 to 24 are schematic views showing the positional relationship between the radiation source and the airflow outlet of the drying apparatus according to the embodiment of the present application;

fig. 25 to 28 are schematic structural views in a main body of a drying apparatus of an embodiment of the present application;

FIG. 29 is a schematic view of the distribution of optical elements and radiation sources of a drying apparatus according to an embodiment of the present application;

fig. 30 is a schematic view of a partial structure of a drying apparatus of the embodiment of the present application;

fig. 31 is another schematic view of a partial structure of a drying apparatus of the embodiment of the present application;

fig. 32 is a side view of a partial structure of a drying apparatus of the embodiment of the present application;

fig. 33 is a sectional view of a partial structure of a drying apparatus of the embodiment of the present application;

fig. 34 is another sectional view of a partial structure of the drying apparatus of the embodiment of the present application;

fig. 35 is another schematic view of a partial structure of a drying apparatus according to an embodiment of the present application;

fig. 36 is an enlarged view of portion C of fig. 35;

fig. 37 is another schematic view of a partial structure of the drying apparatus of the embodiment of the present application;

fig. 38 is a plan view of a part of the structure of the drying apparatus of the embodiment of the present application;

fig. 39 is a plan view showing another structure of a drying apparatus according to an embodiment 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 should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection unless expressly stated or limited otherwise. 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. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The embodiment of the application provides a drying device. The drying apparatus of the embodiments of the present application may generate heat using a plurality of heat generating sources (e.g., at least two heat generating sources) to remove water and moisture from an object (e.g., hair, fabric). In the related art, heat transfer mainly includes three basic forms: thermal radiation, thermal conduction, thermal convection, wherein thermal conduction and thermal convection require heat conduction by means of a medium, while thermal radiation is the direct transfer of heat by electromagnetic waves. The plurality of heat generating sources of the drying apparatus in the embodiment of the present application may include a radiation source, that is, a structure for transferring heat by heat radiation, which is capable of emitting infrared rays having a predetermined wavelength range and power density to heat an object, and/or a non-radiation source; a non-radiative source refers to a structure that transfers heat by thermal convection or conduction, and includes, for example, an electric heating element that can heat an air flow, so that the heated air flow is blown against an object to heat the object. Drying devices include, but are not limited to, blowers, body dryers, hand dryers, bathroom heaters, and the like. In the embodiments of the present application, the drying apparatus is explained taking a blower as an example. Referring to fig. 1, a drying apparatus 100 provided in the present embodiment may include a housing 12, a motor 14, and a plurality of heat generating sources. An air duct 20 is provided inside the housing 12. The housing 12 may house various electrical, mechanical, and electromechanical components, such as a motor 14, a heat generating source, a control board (not shown), and a power supply (not shown).

The housing 12 may include a body 16 and a handle 18, the body 16 coupled to the handle 18, the handle 18 being graspable by a user, each of the body 16 and the handle 18 being adapted to receive at least a portion of the electrical, mechanical, and electromechanical components therein. In some embodiments, the body 16 and the handle 18 may be integrally connected. In some embodiments, the body 16 and the handle 18 may be separate components. For example, the handle 18 may be removably connected to the body 16. In one example, the detachable handle 18 may house a power source (e.g., one or more batteries) therein for powering the drying appliance 100.

The housing 12 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 12 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 uncoated with an electrically insulating material. For example, an electrically insulating material may constitute an inner layer of the housing 12, while a metallic material may constitute an outer layer of the housing 12.

The housing 12 may be provided with one or more air channels 20 therein, and the air flow generated by the motor 14 may be stabilized within the air channels 20, directed or regulated through the air channels 20 and toward an object (e.g., a user's hair). In more particular embodiments, the air chute 20 is a structurally defined air flow path, and the structure within the air chute 20 that blocks air flow should be minimized to avoid undesirable air flow disturbances.

The air chute 20 may have an airflow inlet 22 and an airflow outlet 24. In a specific embodiment, as shown in fig. 1, the airflow inlet 22 and the airflow outlet 24 may be placed at opposite ends of the drying apparatus 100 along a longitudinal direction (a left-right direction as shown in fig. 1) of the drying apparatus 100. Airflow inlet 22 and airflow outlet 24 may each be a vent that allows for efficient airflow throughput. When the motor 14 is in operation, a negative pressure is created at the airflow inlet 22, ambient air is drawn into the air chute 20 through the airflow inlet 22 to create an airflow, and the created airflow may exit the air chute 20 through the airflow outlet 24. In another specific embodiment, as shown in FIG. 6, the airflow inlet 22 may also be provided on the handle 18, such as at an end of the handle 18 distal from the body 16, so that airflow passes through the handle 18 and the body 16 in sequence. In another specific embodiment, as shown in FIG. 7, an airflow inlet 22 is provided on each of the handle 18 and the body 16 to allow airflow to be split into two paths into the drying appliance 100. Depending on the airflow inlet 22, the motor 14 may be located at the main body 16, at the handle 18, or at least partially located at the main body 16 and at another portion located at the handle 18, and the specific location is not limited herein.

The cross-sectional shape of the gas flow outlet 24 may be any shape, preferably circular, oval, oblong (rectangular), square, or various variations of circular and polygonal shapes, such as a hexagon with rounded corners, etc. And is not particularly limited herein.

In one embodiment, the motor 14 is disposed within the housing 12 and is used to generate an airflow in the air chute 20. In one embodiment, the motor 14 may be disposed within the air duct 20 of the main body 16 between the two heat generating sources; or the motor 14 may be partially surrounded by the heat-generating sources such that the motor 14 may be located between one heat-generating source and a portion of another heat-generating source, or between a portion of one heat-generating source and a portion of another heat-generating source.

Referring to fig. 30 and 33, the motor 14 may include a drive portion 26 and an impeller 28. When impeller 28 is driven by drive 26, the rotation of impeller 28 may draw ambient air into air chute 20 through airflow inlet 22 to create an airflow, push the created airflow through air chute 20, and expel the airflow from airflow outlet 24. The motor 14 may comprise a brushless motor 14, and the rotational speed of the impeller 28 may be adjusted under the control of a controller (not shown).

In one embodiment, referring to fig. 30 and 33, the driving portion 26 has a cylindrical rectifying cylinder 32 on an outer circumferential surface thereof, the rectifying cylinder 32 is connected to the outer circumferential surface of the driving portion 26 through a guide vane 34, and the impeller 28 is rotatably disposed in the rectifying cylinder 32. In the flow direction of the airflow, the impeller 28 is located upstream of the guide vanes 34, and the drive portion 26 drives the impeller 28 to rotate when activated. When the impeller 28 rotates, the airflow can be accelerated to enter the rectifying cylinder 32, the guide vanes 34 can rectify the airflow entering the rectifying cylinder 32, and then the airflow exits from the motor 14 through the driving portion 26, and the motor 14 provided with the rectifying cylinder 32 can accelerate and rectify the airflow, so that the drying device 100 can output stable airflow. For example, when hair is dried by the drying apparatus 100, the rectified steady airflow helps to soften the hair during the drying process, and therefore the degree of steady airflow is an important performance measure for the drying apparatus 100.

The heat generating source may be disposed within the housing 12. The number of heat generating sources is at least two, for example two or more than two.

The at least one heat generating source may be a radiation source 36, the radiation source 36 may include a reflector cup 38 and a glowing member 40, the glowing member 40 may be positioned within the reflector cup 38, and the glowing member 40 may emit radiation containing infrared wavelengths. Therefore, the object can be dried by utilizing the infrared ray of the infrared wave band emitted by the luminous piece 40 in a heat radiation mode, medium heat conduction is not needed, moisture on the object is directly heated, and the drying effect is good.

Specifically, the band of infrared rays may include a far infrared band, a near infrared band, and the like. In one example, the infrared band emitted by the light emitting member 40 may cover an infrared spectrum of 0.7 μm or more. In one example, the infrared band emitted from the light emitting member 40 is in a range of 0.7 μm to 20 μm. In another example, the light emitting member 40 emits infrared light in a band substantially covering 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 40 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 emitting element 40 comprises a metallic heating element embedded in a ceramic, for example tungsten embedded in silicon nitride or silicon carbide. The glowing member 40 can be provided in the form of a wire (e.g., a filament), which can be patterned (e.g., formed as a spiral filament) to increase its length and/or surface. The glowing member 40 may also be provided in the form of a rod, and in one example, the glowing member 40 may be a silicon nitride rod, a silicon carbide rod, or a carbon fiber rod having a predetermined diameter and length.

The light emitting member 40 may be selected from one of a halogen lamp, a ceramic, graphene, and a light emitting diode, or the light emitting member 40 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.

The power density of the radiation emitted from the glowing member 40 can be adjusted in different modes of operation 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 38 alters the path of the radiation by way of reflection and may be configured to adjust the direction of the radiation emitted by the glowing member 40. For example, the reflector cup 38 may be configured to reduce the divergence angle of the radiation beam, enabling the radiation emitted by the light emitting element 40 to converge in a predetermined manner.

The reflective surface of the reflector cup 38 may be coated with a coating material having a high reflectivity for the wavelength or range of wavelengths of the radiation emitted by the luminescent member 40. 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 38), 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 reflectivity of the reflective surface provided with the coating may be substantially 100%, which means that substantially all radiation emitted by the luminescent member 40 may be reflected towards the outside of the drying apparatus 100. Thus, the temperature at the reflective surface of the reflector cup 38 is not substantially increased by the radiation emitted by the luminescent member 40.

In one embodiment, the reflective surface of the reflector cup 38 has an axial cross-section in the shape of a polynomial curve. In this manner, 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 reflective surface of the reflector cup 38 has a parabolic shape in axial cross-section.

In one embodiment, the light emitter 40 is disposed at a focal point of the reflective surface of the reflector cup 38. In this way, the radiation from the luminescent element 40 is reflected by the reflective surface and exits the opening of the reflective cup 38 substantially in parallel, so that the infrared radiation emitted by the drying apparatus 100 has good directivity.

In other embodiments, the glowing member 40 can also be positioned off the focus 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 emitter 40 within the reflector cup 38 may also be adjustable, and the degree of convergence and/or direction of the output radiation beam may be varied by varying the relative positions of the light emitter 40 and the reflector cup 38. The shape of the reflector cup 38 and the shape of the glowing member 40 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 heat insulating material (e.g., glass fiber, mineral wool, cellulose, polyurethane foam, or polystyrene) may be inserted at the junction of the light emitting member 40 and the reflective cup 38 such that the light emitting member 40 is thermally insulated from the reflective cup 38. The insulating material can keep the temperature of the reflective cup 38 from increasing, or not increasing too much, even if the temperature of the luminous element 40 is high.

In one embodiment, referring to fig. 27-29, the radiation source 36 includes an optical element 42, and the optical element 42 is disposed at the opening of the reflector cup 38 for filtering or reflecting radiation in non-infrared wavelength bands. In this way, only infrared radiation can be directed to the object being dried.

In particular, optical element 42 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 42 may be a lens. In some embodiments, the optical element 42 may be a Fresnel lens. Alternatively, a thermal insulating material may be interposed between the optical element 42 and the reflector cup 38 to thermally insulate the optical element 42 from the reflector cup 38.

The optical element 42 may form part of the front face or all of the front face of the drying apparatus 100, thereby protecting the internal radiation source 36 and associated structures from foreign objects by the optical element 42 while transmitting radiation, and also avoiding the problem of a user accidentally touching the optical element 42 or the reflector cup 38 during use. The front face may be the left face of the body 16 shown in fig. 27 and 28.

The optical element 42 may be made of a material having a high infrared transmittance. Examples of materials for optical element 42 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). Alternatively, either or both sides of the optical element 42 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 42. The optical element 42 may filter out (e.g., absorb or reflect) radiation that is not in the infrared spectrum. The infrared transmittance of optical element 42 can be at least 95% (e.g., 95% of the radiation is transmitted through optical element 42), 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 higher. In one example, the infrared transmittance of the optical element 42 may be 99%.

In one example, the luminescent member 40 may emit radiation having a wavelength of 0.4 μm to 20 μm, the reflective cup 38 may reflect all of the radiation toward the optical element 42 (e.g., no radiation is absorbed at the reflective surface), and the optical element 42 may filter out any visible spectrum wavelengths between 0.4 μm and 0.7 μm from the reflected radiation, such that only radiation in the infrared spectrum exits the radiation source 36.

In one embodiment, optical element 42 is sealed at the opening of reflector cup 38. In this manner, a relatively sealed interior space may be formed within the reflector cup 38.

Specifically, the inner space of the reflector cup 38 may be configured to have a certain degree of vacuum. The pressure inside the reflector cup 38 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, a near vacuum condition is present within the reflector cup 38, for example the pressure within the interior of the reflector cup 38 may be about 0.001atm or less. The vacuum may inhibit evaporation and/or oxidation of the glowing member 40 and extend the life of the radiation source 36. The vacuum also prevents thermal convection or conduction between the glowing member 40 and the optical element 42 and/or the reflector cup 38.

In one embodiment, the reflector cup 38 is filled with a shielding gas, which may be a quantity of a non-oxidizing gas (e.g., an inert gas), while still maintaining a level of vacuum to reduce the increase in temperature of the gas inside the space formed by the reflector cup 38 and the inner surface of the optical element 42. 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 40 from oxidation and evaporation.

In one embodiment, the plurality of radiation sources 36 share one optical element 42, that is, one optical element 42 is provided at the opening of the reflector cups 38 of all the radiation sources 36. In the case where a plurality of radiation sources 36 are connected, one optical element 42 may be provided in a shape corresponding to the plurality of radiation sources 36. As shown in fig. 29, the plurality of radiation sources 36 are arranged in a ring shape, and a complete and ring-shaped optical element 42 is disposed to cover the plurality of radiation sources 36, so that the plurality of radiation sources are hidden inside the drying apparatus 100, and the drying apparatus 100 has a better consistency in shape.

In one embodiment, each radiation source 36 is provided with one optical element 42, i.e., a plurality of radiation sources 36 correspond to a plurality of optical elements 42, one optical element 42 being provided at the opening of one reflector cup 38, as shown in fig. 27 and 28. In other embodiments, it is also possible that one optical element 42 may be disposed at the opening of the reflector cups 38 of several radiation sources 36, and one optical element 42 may be disposed at the opening of the reflector cup 38 of one radiation source 36.

In one embodiment, the optical element 42 may be spaced from an inner wall of the body 16, with the airflow outlet 24 being formed between the optical element 42 and the inner wall of the body 16. Alternatively, the optical element 42 is connected to the main body 16, and the optical element 42 is formed with a through hole or a notch communicated to the air duct 20 to form the air outlet 24.

In one embodiment, referring to FIG. 1, at least one heat generating source is located downstream of the air chute 20 and adjacent to the airflow outlet 24, and at least one heat generating source is disposed within the housing 12 and upstream of the air chute 20.

So, use two at least sources that generate heat, under the prerequisite of keeping the same drying efficiency, reducible every source self that generates heat's power to promote the security of every source that generates heat, can not make the heat concentrate a position in drying equipment 100 moreover, thereby guarantee drying equipment 100's reliability. Moreover, a plurality of heating sources with smaller power replace one heating source with larger power, so that the design of the related internal structure is more flexible, the requirements on flame retardance and heat insulation indexes of the related parts are reduced, and particularly, the radial size of the drying equipment with highly integrated internal structure can be greatly reduced. In addition, the total power of the plurality of heat generating sources can be set, and the objects can be dried quickly in a short time or dried at a low temperature for a long time.

Specifically, the plurality of heat-generating sources may include a first heat-generating source 44 and a second heat-generating source 46, and in one embodiment, the first heat-generating source 44 may be located downstream of the air chute 20. The second heat generating source 46 may be located upstream of the air chute 20, and upstream and downstream of the air chute 20 may be determined according to the flow direction of the air flow within the housing 12, e.g., the air flow inlet 22 may be considered the most upstream of the air chute 20 and the air flow outlet 24 may be considered the most downstream of the air chute 20. The second heat-generating source 46 may be located upstream of the air chute 20, meaning it is closer to the airflow inlet 22 than to the airflow outlet 24; or at least upstream of the first emission source 44.

In one embodiment, the first heat source 44 may be the radiation source 36, the second heat source 46 may be a non-radiation source, and in a dual heat source design of the radiation source + the non-radiation source, it is possible to realize that the infrared radiation and the hot air flow act on the external object at the same time, so that the heat transfer effects of the heat radiation and the heat convection are dual-superimposed, and the drying efficiency can be improved. In addition, the heating values of the first heating source 44 and the second heating source 46 can be adjusted to meet the requirement of the operation mode of the drying equipment. Because the drying efficiency is benefited by hot air flow and infrared radiation, a high-power radiation source 36 is not needed, the energy consumption can be reduced, and the danger caused by overheating of the radiation source 36 can be avoided; and the air flow does not need to be heated to a high temperature, so that the energy consumption of a non-radiation source can be reduced, the temperature of direct heat transfer to an object is reduced, and the damage to the object (such as hair) is reduced. In addition, since the airflow does not need to be heated to a high temperature, the hot airflow does not significantly affect the normal operation of the motor 14, so that the hot airflow can pass through the motor 14, at least part of the second heat generating source 46 can be disposed upstream of the motor 14 in the flowing direction of the airflow, at least part of the airflow can be heated by the second heat generating source 46 first, and then accelerated and rectified by the motor 14, so that the stable and uniform-temperature airflow can be output. If the scheme that the airflow is accelerated and rectified by the motor and then heated by the non-radiation source is adopted, the non-radiation source needs to exchange heat with the airflow and is inevitably required to be arranged on a flow path of the airflow, so that the rectified airflow is blocked and disturbed by the non-radiation source, the stability of the airflow is reduced, and the problem of high temperature of the local airflow is possibly caused. In the present embodiment, by the above arrangement, the second heat source 46 can be located at the upstream of the motor 14, which can avoid the above problem, thereby improving the temperature uniformity of the outlet air of the blower and improving the use experience; and the structural layout of the motor 14 and the second heat source 46 is more various, and the motor can adapt to the related mechanical and electrical structural design, so that the space layout rationality can be improved, and the miniaturization of the whole machine is facilitated.

Further, the thermal radiation emitted by the radiation source 36 may act directly on the moisture, for example, the wavelength of the radiation source 36 is designed to be easily absorbed by water molecules, but not by objects such as hair, so that only the moisture is heated; the hot air flow heated by the non-radiation source directly acts on the surface of the object, and the object and the moisture are heated simultaneously by the hot air flow for drying. However, the radiation source 36 and the non-radiation source have their limitations, the radiation source 36 has a small heating effect on the air flow, and when the cold air flow blows to the wet hair, the user is likely to feel cool, especially in an environment with a low room temperature, while the non-radiation source heats the object itself during working, if the temperature is too high, the object itself is likely to be damaged during heating (for example, hair is dry and rough due to rapid water loss at high temperature), and by combining the radiation source 36 and the non-radiation source, the advantages of both can be considered, and the disadvantages of the other can be solved: the non-radiation source heats the air flow, so that a user can not feel cold, the heat radiation and the hot air flow act on an object at the same time, the heating effect on the air flow can be reduced on the premise of the same drying effect, and the problem that the object (such as hair) is damaged due to the high temperature is avoided.

In addition, since the required heating power is reduced, the power consumption of the radiation source can be reduced, so that the self-heating of the drying apparatus 100 is reduced and the safety is increased. Moreover, when the radiation source 36 works, it needs to have its own proper radiation temperature (according to planck's blackbody radiation law, the higher the temperature of the luminescent element 40 is, the shorter the wavelength is, and the too low temperature or the too high temperature will make it unable to emit radiation of the preset waveband), and under the condition of low room temperature, for example, the radiation temperature of the radiation source 36 may be too low, which will result in extra power consumption to maintain the radiation temperature of the radiation source 36, thereby resulting in energy waste, while the hot air flow heated by the non-radiation source can play a role of heating the radiation source 35 when flowing through the radiation source 36, and can be heated up quickly when the radiation source 36 is in the too low temperature state, thereby working at the proper radiation temperature.

The duct 20 described hereinabove and hereinbelow is not limited to a particular, specific configuration, and refers to the actual airflow path formed within the housing 12, and thus upstream of the duct 20, may be understood to be the upstream portion of the duct 20 itself, or may be understood to be a location outside the upstream portion of the duct 20; similarly, the downstream of the air duct 20 may be understood as the downstream portion of the air duct 20 itself, or may be understood as a position outside the downstream portion of the air duct 20.

The first heat source 44 is located downstream of the air duct 20 and adjacent to the airflow outlet 24, and the second heat source 46 is located upstream of the air duct 20, that is, the first heat source 44 and the second heat source 46 are disposed at different positions in the air duct 20 along the airflow flowing direction, so that the airflow can be heated at two positions in the housing 12 respectively, the heating effect is improved, and the efficiency of drying objects (such as hair) is improved.

In one embodiment, the airflow outlet 24 and the first heat generating source 44 are disposed within the body 16. In the embodiment shown in fig. 1, the airflow outlet 24 is disposed at the left end of the main body 16 in the axial direction, and when the first heat source 44 is a non-radiation source, the first heat source 44 is disposed in the main body 16 and adjacent to the airflow outlet 24, so that the airflow in the main body 16 can be heated by the first heat source 44 before flowing out of the main body 16, thereby improving the drying efficiency of the drying apparatus 100.

In one embodiment, referring to FIG. 4, the air chute 20 includes a first flow path 48 extending through the main body 16, the motor 14 is positioned within the main body 16, and the plurality of heat-generating sources includes a second heat-generating source 46, the second heat-generating source 46 is positioned within the main body 16, and at least a portion of the second heat-generating source 46 is positioned upstream of the motor 14 in the flow direction of the air flow. Specifically, referring to fig. 1 to 7, the first heat generating source 44 and the second heat generating source 46 are both located in the main body 16, and the motor 14 is located in the main body 16. In the flow direction of the airflow, at least a portion of the second heat-generating source 46 is located upstream of the motor 14, and in the case where there are a plurality of second heat-generating sources 46, it may be that at least one second heat-generating source 46 is located entirely upstream of the motor 14, or that at least a portion of at least one second heat-generating source 46 is located upstream of the motor 14, for example that one or several second heat-generating sources 46 are located entirely upstream of the motor 14, one or several second heat-generating sources 46 circumferentially surround the motor 14; or one or several second heat generating sources 46 may be located entirely upstream of the motor 14, one or several second heat generating sources 46 may be located circumferentially around the motor 14, one or several second heat generating sources 46 may be located downstream of the motor 14; or a portion of a second heat-generating source 46 upstream of the motor 14, and so forth.

In the case where only one second heat-generating source 46 is provided, it may be that a part of the second heat-generating source 46 is located upstream of the motor 14 and another part circumferentially surrounds the motor 14; it is also possible that the second heat-generating source 46 is located entirely upstream of the motor 14.

Further, the motor 14 is located substantially midway between the first heat generating source 44 and the second heat generating source 46, and the motor 14 is located at a distance from the first heat generating source 44 that is substantially equal to the distance from the motor 14 to the second heat generating source 46, so that the two heat generating sources have less influence on the motor 14.

The airflow inlet 22 and the airflow outlet 24 of the first flow passage 48 are located at both ends of the main body 16 in the axial direction, i.e., at the right and left ends of the main body 16, respectively, as shown in fig. 1.

In one embodiment, referring to fig. 5, a heat insulation drainage member 50 is disposed between the two heat sources. In this way, it is possible to avoid overheating of the heat generating source located downstream by the air flow.

Specifically, in fig. 5, the number of the first heat generation sources 44 is at least two, at least two first heat generation sources 44 are disposed around the airflow outlet 24, and the number of the second heat generation sources 46 is at least one, and the second heat generation sources 46 are located between the first heat generation sources 44 and the motor 14 in the flow direction of the airflow. A heat insulation and flow guiding member 50 is arranged between the first heat source 44 and the second heat source 46, the heat insulation and flow guiding member 50 can shield at least part of the first heat source 44 in the direction of the airflow, so that at least part of the airflow does not blow directly to the shielded first heat source 44, the problem that the airflow heated by the second heat source 46 of the first heat source 44 is heated again to increase the heat dissipation burden of the first heat source 44 is avoided, meanwhile, the heat insulation and flow guiding member 50 can also guide the airflow, noise possibly generated when the airflow flows through the first heat source 44 is reduced, and the airflow restriction effect is achieved.

The number of the heat insulation drainage members 50 may be one or more (e.g., two or more), and when the number of the heat insulation drainage members 50 is one, the heat insulation drainage members 50 entirely cover all the first heat generation sources 44, and separate the first heat generation sources 44 from the second heat generation sources 46. When the number of the heat insulating drains 50 is plural, one heat insulating drain 50 may separate at least one first heat generating source 44 and at least one second heat generating source 46.

When the motor 14 is activated to generate an airflow, the airflow is heated by the second heat generating source 46, and flows through the isolation flow-guiding member 50 to be guided to the airflow outlet 24.

In one embodiment, referring to FIG. 5, the two heat generating sources include a radiation source 36 and a non-radiation source, the non-radiation source being positioned between the motor 14 and the radiation source 36, and the insulating drain 50 separates at least a portion of the radiation source 36 from at least a portion of the non-radiation source. Specifically, the first heat-generating source 44 may be the radiation source 36, and the radiation source 36 may emit infrared radiation to dry the object. The second heat-generating source 46 may be a non-radiation source, which may include an electric heat-generating element, for example, an electric heat-generating wire. The heating wire may be formed in at least one layer in a ring-shaped structure.

In one embodiment, the outer wall of the heat insulation and air guiding element 50 facing the motor 14 facing the airflow is designed to reduce wind resistance, such as streamline, inclined surface, etc., so that airflow noise can be reduced.

The outer wall towards the thermal-insulated drainage piece 50 of motor 14 is the windward wall, and the outer wall design is for the shape that can reduce the windage for the air current that blows by motor 14 direction can more smoothly lead air outlet 24, reduces the air current noise, and then promotes user experience.

The streamline may be in the shape of a polynomial curve. Specifically, the polynomial curve may have a shape including a circle, a parabola, an ellipse, a hyperbola, and the like.

In one embodiment, referring to FIG. 6, the air chute 20 includes a second flow passage 52 that enters the air from the handle 18 and communicates the handle 18 and the body 16. Specifically, the airflow inlet 22 of the second flow passage 52 may be provided at the handle 18, for example, at least one of a circumferential side surface and a bottom surface of the handle 18. In addition, air entering from the handle 18 may also dissipate heat to some extent from electrical components (e.g., power supplies, control components, etc.) within the handle 18.

In one embodiment, referring to FIG. 7, the motor 14 is positioned within the body 16, and the plurality of heat generating sources includes a second heat generating source 46, the second heat generating source 46 being positioned within the body 16, and at least a portion of the second heat generating source 46 being positioned upstream of the motor 14 in a direction of flow of the airflow. Specifically, the motor 14 and the second heat-generating source 46 are both located within the body 16. At least a portion of the second heat generating source 46 is located upstream of the motor 14 in the flow direction of the airflow, as can be seen from the above description, and will not be described in detail here.

In one embodiment, referring to fig. 8 and 9, the motor 14 is located within the body 16 and the second heat generating source 46 is located within the handle 18, with the second heat generating source 46 being located upstream of the motor 14 in the direction of flow of the airflow. Specifically, the motor 14 and the second heat source 46 are separately disposed, the motor 14 is disposed in the main body 16, the second heat source 46 is disposed in the handle 18, at least a portion of air in an air flow generated when the motor 14 is started enters the handle 18, the air flow passes through the second heat source 46 and is heated by the second heat source 46, the heated air flow passes through the motor 14, then flows in the direction of the first heat source 44, and finally flows out from the air flow outlet 240 and blows toward the object. In addition, when the first heat source 44 is a non-radiation source, the airflow flowing through the first heat source 44 may be secondarily heated by the first heat source 44 and then blown toward the object.

In one embodiment, referring to fig. 12 and 13, the motor 14 is located within the handle 18, the plurality of heat generating sources includes a second heat generating source 46, the second heat generating source 46 is located within the handle 18, and at least a portion of the second heat generating source 46 is located upstream of the motor 14. Specifically, the motor 14 and the second heat generating source 46 are both located within the handle 18, and the motor 14 may be powered from the handle 18 or from both the body 16 and the handle 18. At least a portion of the second heat generating source 46 is located upstream of the motor 14, as discussed above with respect thereto, and will not be discussed in detail herein.

In one embodiment, referring to fig. 14 and 15, the motor 14 is located within the handle 18, the plurality of heat generating sources includes a second heat generating source 46, the second heat generating source 46 is located within the handle 18, and at least a portion of the second heat generating source 46 is located downstream of the motor 14. Specifically, the motor 14 and the second heat generating source 46 are both located within the handle 18, and when the motor 14 is activated, air may be drawn from the handle 18, or from both the body 16 and the handle 18. At least a portion of the second heat-generating source 46 is located downstream of the motor 14 in the flow direction of the airflow, and reference may be made to the above description of the at least a portion of the second heat-generating source 46 being located upstream of the motor 14, which will not be elaborated upon herein.

In one embodiment, referring to fig. 10, the plurality of heat generating sources includes a second heat generating source 46, the second heat generating source 46 being located within the body 16, wherein the first heat generating source 44 is the radiation source 36. Specifically, the radiation source 36 is located downstream of the air duct 20 and adjacent to the airflow outlet 24, and the airflow outlet 24 is located at an end position of the main body 16, where the radiation source 36 is located so that it can directly emit radiation out of the main body 16, so that shielding of relevant components of the drying apparatus 100 from radiation energy of the radiation source 36 can be reduced, which is beneficial to improving drying efficiency of the drying apparatus 100. The radiation source 36 may emit infrared radiation to the object.

The first heat generating source 44 and the second heat generating source 46 are both located within the body 16, and the airflow inlet 22 may be disposed at the handle 18, and the airflow outlet 24 may be disposed at one axial end of the body 16 (as shown, the left end of the body 16). In the direction of flow of the air flow, the first heat-generating source 44 is located downstream of the electric machine 14 and at least part of the second heat-generating source 46 is located upstream of the electric machine 14. In other embodiments, the airflow inlet 22 may be provided on both the handle 18 and the body 16, or only on the body 16. At least a portion of the second heat-generating source 46 is located upstream of the motor 14, as discussed above with respect thereto, and will not be discussed in detail herein.

In one embodiment, the duct 20 may include an upstream duct and a downstream duct, wherein the upstream duct includes a plurality of portions that converge to form the downstream duct, i.e., the portions of the duct 20 before convergence form the upstream duct and converge to form the downstream duct. One portion of the upstream air chute is located within the main body 16 and another portion is located within the handle 18. Thus, air can be simultaneously supplied from at least two portions to increase the amount of air supplied to the drying apparatus 100.

Specifically, the housing 12 may have a converging portion therein, and the converging portion may have a downstream channel and a plurality of upstream channels, one upstream channel may correspond to one or more portions of the upstream air duct, and the plurality of upstream channels converge the air flow of the plurality of portions of the upstream air duct and send the air flow to the downstream air duct through the downstream channels. For example, the upstream air duct has two parts, the converging part can form a Y-shaped structure, and after the air is fed into the two upstream channels and converged, the converged air flow is output from one downstream channel to form the downstream air duct. In other embodiments, the converging portion may have no specific structure, for example, a generally funnel-shaped structure is formed by the housing and the related structures, the open side of the funnel-shaped structure faces the upstream of the airflow, and the side of the beam opening faces the downstream of the airflow, so that the upstream airflow is converged into one airflow to form the downstream air channel no matter how many parts the upstream airflow is divided into, or the upstream airflow is divided into one whole.

Referring to fig. 7, among the parts of the upstream air duct, a part is located in the main body 16 and a part is located in the handle 18, one end of the main body 16 in the axial direction (as shown in the right end of the main body 16) is provided with an air inlet 22, and the handle 18 is also provided with the air inlet 22. The downstream air duct formed by the convergence of the parts of the upstream air duct may be located in the main body 16, and the airflow outlet 24 of the downstream air duct is arranged at the other end (as shown, the left end of the main body 16) of the main body 16 in the axial direction. When the motor 14 is activated, airflow may be drawn in through the airflow inlet 22 of the body 16 and handle 18 and out through the airflow outlet 24 of the body 16.

The downstream air duct may be located entirely within the main body 16, or it may be located partially within the handle 18 and partially within the main body 16.

In one embodiment, referring to FIG. 7, the plurality of heat generating sources includes a second heat generating source 46, portions of the upstream air path converge at the second heat generating source 46, the motor 14 is positioned within the body 16, and the motor 14 is positioned downstream of at least a portion of the second heat generating source 46 in the direction of flow of the air flow. Specifically, the second heat-generating source 46 may be located at the converging portion, and since portions of the upstream air duct converge at the second heat-generating source 46, the air flow of the upstream air duct may be concentrated at the second heat-generating source 46 for heating, thereby preventing the unheated air flow from directly entering the downstream air duct. The motor 14 is positioned downstream of at least a portion of the second heat-generating source 46 in the direction of airflow, and the heated airflow may flow through the motor 14 and toward the first heat-generating source 44. The motor 14 is positioned downstream of at least a portion of the second heat-generating source 46, as described above with respect to the positioning of at least a portion of the second heat-generating source 46 upstream of the motor 14, and will not be described in detail herein.

In one embodiment, referring to FIG. 11, the plurality of heat generating sources includes a second heat generating source 46, portions of the upstream air path converge at the second heat generating source 46, the motor 14 is positioned within the handle 18, and the motor 14 is positioned upstream of at least a portion of the second heat generating source 46 in the direction of flow of the air flow. Specifically, the motor 14 is located upstream of at least a portion of the second heat-generating source 46, and reference is made to the above description of the location of at least a portion of the second heat-generating source 46 upstream of the motor 14, which is not detailed herein.

In one embodiment, referring to FIG. 9, portions of the upstream air path converge at the motor 14, i.e., the motor 14 also acts to converge and rectify the air flow into a bundle. The plurality of heat generating sources includes a second heat generating source 46, the second heat generating source 46 being located within the handle 18. Specifically, the drying apparatus 100 may be simultaneously fed from the handle 18 and the main body 16, the air flow is heated by the second heat generating source 46, and the heated air flow is passed through the motor 14 and converged and then flows to the first heat generating source 44.

In one embodiment, referring to FIG. 12, portions of the upstream air path converge at a first heat generating source 44, the plurality of heat generating sources includes a second heat generating source 46, and the motor 14 and the second heat generating source 46 are both located within the handle 18, the second heat generating source 46 being located upstream of the motor 14 in the direction of flow of the air flow. Specifically, the drying apparatus 100 may be ventilated from the handle 18 and the main body 16. The air flow in the upstream air chute portion within the main body 16 may be heated by the first heat generating source 44, and the air flow in the upstream air chute portion within the handle 18 may be heated by the second heat generating source 46 and then flow to the motor 14 to the first heat generating source 44 and finally out of the air flow outlet 24.

In one embodiment, referring to FIG. 14, portions of the upstream air path converge at a first heat generating source 44, the plurality of heat generating sources includes a second heat generating source 46, and both the motor 14 and the second heat generating source 46 are located within the handle 18, the second heat generating source 46 being located downstream of the motor 14 in the direction of flow of the air flow. Specifically, the drying apparatus 100 may be ventilated from the handle 18 and the main body 16. The air flow in the upstream air path portion of the main body 16 may be heated by the first heat generating source 44, and the air flow in the upstream air path portion of the handle 18 may flow through the motor 14, then heated by the second heat generating source 46, then flow to the first heat generating source 44, and finally flow out of the air flow outlet 24. In addition, when the first heat-generating source 44 is a non-radiation source, the airflow flowing through the first heat-generating source 44 may be secondarily heated by the first heat-generating source 44. It will be readily appreciated that in other embodiments, when the first heat generating source 44 is a radiation source, it may itself generate heat during operation that may exceed the temperature of the gas stream heated by the upstream second heat generating source 46, and the gas stream flowing through the first heat generating source 44 may also be heated by the first heat generating source 44.

In one embodiment, the heat generating source located downstream of the air chute 20 is a first heat generating source 44, and the first heat generating source 44 includes at least one radiation source 36. In this way, shielding of the radiation energy of the radiation source 36 can be reduced.

In particular, the radiation source 36 may emit infrared radiation to dry the object. The number of radiation sources 36 may be single or two or more than two. The radiation source 36 is located downstream of the air chute 20 and may be disposed adjacent the airflow outlet 24, reducing obstruction of the radiation (or optical path) from the radiation source 36 by other components of the drying apparatus 100.

In one embodiment, the at least one radiation source 36 is located outside the air chute 20. Specifically, when the number of the radiation sources 36 is two or more than two, all the radiation sources 36 may be located outside the air duct 20, or one or several radiation sources 36 may be located outside the air duct 20, and one or several radiation sources 36 may be located inside the air duct 20.

In one embodiment, at least one radiation source 36 is positioned between the wind tunnel 20 and the housing 12. In this manner, the radiation source 36 may fixedly couple the air chute 20 to the housing 12. The radiation sources 36 may be positioned at a predetermined tilt angle to form a spot at a distance from the gas flow outlet 24. The plurality of radiation sources 36 may form a spot where several spots overlap and several spots do not overlap, or all spots substantially do not overlap. In a more specific embodiment, the airflow is propagated in a substantially linear manner after flowing out from the airflow outlet 24, so that the airflow can cover the position of the light spot, and when the drying device 100 is used for drying, the position of the airflow is adjusted to make the light spot irradiate on the part to be dried of the object, and at the time, the airflow also covers the area, so that the airflow and the heat radiation simultaneously act on the part to be dried of the object, and the drying efficiency is improved.

In one embodiment, at least one radiation source 36 is positioned along the periphery of the air chute 20. In this manner, the radiation source 36 may be fixedly attached to the periphery of the air duct 20. Specifically, the air duct 20 may be defined by the walls of the air duct 20, and the radiation source 36 may be fixedly connected to the outer surface of the walls of the air duct 20, or the outer wall of the radiation source 36 may constitute the walls of the air duct 20.

In one embodiment, at least one radiation source 36 is disposed in parallel with the air chute 20.

In one embodiment, the radiation source 36 comprises a plurality, and at least a portion of the motor 14 is located upstream of the plurality of radiation sources 36 in the direction of flow of the gas stream. Specifically, it may be that a portion of the motor 14 is located upstream of the plurality of radiation sources 36 and another portion of the motor 14 is located downstream of the plurality of radiation sources 36, it may be that a portion of the motor 14 is located upstream of the plurality of radiation sources 36 and the plurality of radiation sources 36 circumferentially surround another portion of the motor 14, or it may be that the integral motor 14 is located upstream of the plurality of radiation sources 36.

In one embodiment, referring to fig. 20, the radiation source 36 comprises a plurality of radiation sources 36, and the plurality of radiation sources 36 are positioned on one side of the gas flow outlet 24. Specifically, referring to fig. 20, the plurality of radiation sources 36 may be located to the left of the airflow outlet 24. It is understood that in other embodiments, the plurality of radiation sources 36 may be located on the right side, or upper side, or lower side, or upper left side, or lower left side, or upper right side, or lower right side of the gas flow outlet 24.

In one embodiment, the radiation source 36 comprises a plurality of radiation sources 36 connected in a ring shape and surrounding the gas flow outlet 24 on the circumferential outer side. Specifically, a plurality of radiation sources 36 are disposed along the periphery of the gas flow outlet 24. A plurality of radiation sources 36 may be disposed about and along the outer wall periphery of the air chute 20 where the airflow outlet 24 is located.

The gas stream may exit the drying apparatus 100 from an annular space formed by the plurality of radiation sources 36, and the plurality of radiation sources 36 may be oriented such that the spot formed by each radiation source 36 or all of the radiation sources 36 may be projected in a desired direction.

In one embodiment, the plurality of heat-generating sources includes a second heat-generating source 46, at least a portion of the second heat-generating source 46 being upstream of the motor 14 in the direction of flow of the airflow. Specifically, when the motor 14 is activated, the airflow sucked from the outside of the drying device 100 may first be heated by at least part of the second heat generating source 46, then flow through the motor 14, then flow to the first heat generating source 44, and finally flow out from the airflow outlet 24. In addition, when the first heat-generating source 44 is a non-radiation source, the airflow flowing through the first heat-generating source 44 may be secondarily heated by the first heat-generating source 44.

At least a portion of the second heat generating source 46 is located upstream of the motor 14 in the flow direction of the airflow, as can be seen from the above description, and will not be described in detail here.

In one embodiment, the second heat-generating source 46 is spaced from the motor 14 in the direction of flow of the airflow. Specifically, in the present embodiment, the entire second heat generation source 46 is located upstream of the motor 14 in the flow direction of the air flow. The second heat-generating source 46 is spaced from the motor 14 to reduce the adverse effect of heat generated by the second heat-generating source 46 on the motor 14.

In one embodiment, the second heat generating source 46 is a non-radiation source and the second heat generating source 46 is spaced apart from the radiation source 36. Specifically, the first heat generating source 44 is a radiation source 36 and the second heat generating source 46 is a non-radiation source.

The source 36 is spaced from the non-source to reduce the effect on each other, such as reducing the temperature effect of the non-source on the source 36. Specifically, the second heat source 46 is spaced from the radiation source 36, so as to avoid the second heat source 46 from contacting the radiation source 36, so as to avoid the decrease of the infrared radiation efficiency of the luminescent member 40 caused by the direct transmission of the temperature rise of the second heat source 46 to the luminescent member 40 of the radiation source 36 (according to planck black body radiation law, the higher the temperature of the luminescent member 40 is, the shorter the wavelength is, and the infrared band is the longest in the broad spectrum, so that the temperature rise is caused to shorten the wavelength, so that the portion of the band other than the wavelength 780nm is less, and the ratio of the visible light such as the wavelength 400-780 nm is higher).

In one embodiment, the motor 14 is located substantially midway between the radiation source 36 and the second heat-generating source 46. Specifically, the distance between the motor 14 and the radiation source 36 is approximately the same as the distance between the motor 14 and the second heat generating source 46.

In one embodiment, the radiation source 36 is located within the air chute 20. Specifically, the radiation source 36 is located within the air path 20, and the air flow passing through the air path 20 can also properly dissipate heat from the radiation source 36.

In one embodiment, the radiation source 36 is located on one side within the air chute 20. Specifically, referring to FIG. 16, the radiation source 36 may be located on the upper side of the air chute 20. Referring to FIG. 17, the radiation source 36 may be located on the left side of the air chute 20. It will be appreciated that in other embodiments, the radiation source 36 may be located on the right side, or the lower side, or the upper left side, or the lower left side, or the upper right side, or the lower right side, etc. of the wind tunnel 20.

In one embodiment, referring to fig. 18 and 19, the radiation source 36 is surrounded by the air chute 20.

In one embodiment, a plurality of radiation sources 36 are spaced apart within the gas flow outlet 24, and the gas flow outlet 24 circumferentially surrounds each radiation source 36, as shown in FIG. 21.

In one embodiment, the plurality of radiation sources 36 are connected in a ring shape and positioned within the gas flow outlet 24, and the gas flow outlet 24 includes a surrounding plurality of radiation sources 36 on the inner and outer sides, respectively, as shown in FIG. 22.

In one embodiment, the plurality of radiation sources 36 are distributed discretely, with different radiation sources 36 being positioned differently from the gas flow outlet 24, as shown in FIG. 24.

In one embodiment, the plurality of radiation sources 36 are arranged in a ring, as shown in FIG. 23.

In one embodiment, the plurality of radiation sources 36 is arranged in an array, for example, the plurality of radiation sources 36 may be arranged in a row and column array.

It is understood that in other embodiments, the arrangement of the plurality of radiation sources 36 is not limited to the above-mentioned manner, and may be set according to actual conditions.

In one embodiment, the first heat generating source 44 comprises one radiation source 36, and the motor 14 is located upstream of the radiation source 36 in the flow direction of the gas stream. Specifically, after passing through the motor 14, the airflow is directed to the radiation source 36, which may be heated by the radiation source 36 and may also be appropriately cooled by the radiation source 36.

In one embodiment, the radiation source 36 is located on one side of the gas flow outlet 24, as shown in fig. 16 and 17.

In one embodiment, the gas flow outlet 24 circumferentially surrounds the radiation source 36, as shown in fig. 18 and 19.

In one embodiment, the plurality of heat-generating sources includes a second heat-generating source 46, at least a portion of the second heat-generating source 46 being upstream of the motor 14 in the direction of flow of the airflow. Specifically, the motor 14 is positioned upstream of the radiation source 36 and at least a portion of the second heat-generating source 46 is positioned upstream of the motor 14 such that the airflow, after being heated by at least a portion of the second heat-generating source 46, flows to the motor 14, then to the radiation source 36, and finally out the airflow outlet 24. At the same time, the air flow also provides for proper heat dissipation from the radiation source 36. At least a portion of the second heat generating source 46 is located upstream of the motor 14, as discussed above with respect thereto, and will not be discussed in detail herein.

In one embodiment, the second heat-generating source 46 is spaced from the motor 14. Specifically, the integral second heat-generating source 46 is located upstream of the motor 14. The second heat generating source 46 is spaced apart from the motor 14 to reduce the adverse effect of heat generated by the second heat generating source 46 on the motor 14.

In one embodiment, the second heat-generating source 46 is a non-radiation source and the second heat-generating source 46 is spaced apart from the radiation source 36. Specifically, the radiation source 36 is spaced apart from the non-radiation source, and the motor 14 may be positioned between the radiation source 36 and at least a portion of the non-radiation source, or the motor 14 may be positioned between the radiation source 36 and the entire non-radiation source. The second heat source 46 is spaced apart from the radiation source 36 to prevent the second heat source 46 from contacting the radiation source 36, so as to prevent the infrared radiation efficiency of the luminescent member 40 from being reduced due to the temperature rise of the second heat source 46 directly transmitted to the luminescent member 40 of the radiation source 36 (according to planck's blackbody radiation law, the higher the temperature of the luminescent member 40 is, the less the infrared energy, such as the part with the wavelength of 780nm, is, and the higher the visible light, such as the wavelength of 400-780 nm, is).

In one embodiment, the motor 14 is positioned substantially midway between the radiation source 36 and the second heat-generating source 46. Specifically, the distance between the motor 14 and the radiation source 36 is approximately the same as the distance between the motor 14 and the second heat-generating source 46.

In one embodiment, the plurality of heat generating sources includes a second heat generating source 46, the drying apparatus 100 further includes a spacer 54, the spacer 54 is disposed within the tunnel 20, and at least a portion of the spacer 54 is positioned between the radiation source 36 and the second heat generating source 46. In this manner, excessive exposure of the radiation source 36 to the flow of heated gas from the second heat generating source 46 is avoided, ensuring that the radiation source 36 operates at the proper temperature. Specifically, at least a portion of the second heat generating source 46 may be located upstream of the motor 14, and the airflow entering the air chute 20 is heated by at least a portion of the second heat generating source 46, flows through the motor 14, and then flows toward the radiation source 36. Since the air flow is heated by the second heat generating source 46 before flowing through the radiation source 36 (of course, there is also a possibility of being heated by the motor 14 when the air flow is flowing through the motor 14), there is a possibility of having a negative effect on the operating temperature of the radiation source 36 when the heated air flow is flowing through the radiation source 36, and by at least part of the partition 54, at least part of the radiation source 36 is not blown straight by the heated air flow, thereby reducing the negative effect of the heated air flow on the temperature of the radiation source 36. At least a portion of the second heat-generating source 46 may be located upstream of the motor 14, as discussed above with respect thereto, and will not be discussed in detail herein.

The radiation source 36 may comprise a reflector cup 38, and in the flow direction of the gas flow, at least part of the partition 54 may be located upstream of the reflector cup 38 such that at least part of the reflector cup 38 is shielded by the at least part of the partition 54, so that at least part of the reflector cup 38 is not directly blown by the heated gas flow, thereby ensuring that the radiation source 36 operates in a proper temperature range.

In one embodiment, the airflow flows within a channel formed by the inner wall of the air chute 20 and the outer wall of the partition 54. Specifically, a passage may be formed between the inner wall of the air chute 20 and the outer wall of the partition 54 through which the airflow may flow and ultimately exit the drying apparatus 100 from the airflow outlet 24.

In one embodiment, at least a portion of the outer wall of the partition 54 forms a guide wall to guide airflow between the outer wall of the partition 54 and the inner wall of the air chute 20. In particular, the guide wall may guide the direction of the airflow such that the airflow flows in a desired direction.

In one embodiment, the guide walls are streamlined and extend generally along the outer wall of reflector cup 38 of radiation source 36. Specifically, the radiation source 36 may include a reflector cup 38 and a luminescent element 40, the luminescent element 40 being located within the reflector cup 38, at least a portion of the spacer 54 being located between the reflector cup 38 and the second heat generating source 46, at least a portion of the reflector cup 38 being shielded by the spacer 54. The guide wall is streamline, and can reduce air flow resistance, and then reduce air flow noise. The streamline may be in the shape of a polynomial curve. Specifically, the polynomial curve may have a shape including a circle, a parabola, an ellipse, a hyperbola, and the like.

The guide walls extend generally along the outer walls of the reflector cup 38 of the radiation source 36, which may reduce the space occupied by the guide walls and make the drying apparatus 100 more compact.

In one embodiment, the outer wall of the spacer 54 is formed as a generally conical wall with the apex of the outer wall of the spacer 54 facing the side of the second heat generating source 46, and the end of the spacer 54 remote from the apex has an opening, the opening of the spacer 54 facing the glowing member 40 of the radiation source 36. Specifically, the opening of the spacer 54 faces the luminescent member 40 of the radiation source 36 such that the portion of the radiation source 36 where the luminescent member 40 is located is substantially shielded by the spacer 54. Since the light emitting member 40 generates a large amount of heat during operation, the heat is blocked by the partition 54, so that the negative influence of the heated airflow on the light emitting member 40 can be reduced, and the light emitting member 40 can operate in a normal temperature range.

The vertex of the outer wall of the partition 54 faces the side where the second heat generation source 46 is located, so that the airflow heated by the second heat generation source 46 and accelerated and rectified by the motor 14 is branched from the vertex of the outer wall of the partition 54 to the circumferential side of the partition 54, and the branched airflow flows to the passage formed by the outer wall of the partition 54 and the inner wall of the air duct 20 and finally flows out from the airflow outlet 24.

In one embodiment, at least a portion of the glowing member 40 is positioned within the opening of the spacer member 54.

In one embodiment, the partition 54 is located downstream of the motor 14 in the direction of flow of the airflow.

In one embodiment, the spacer 54 is coupled to at least one of the radiation source 36, the housing 12, and the motor 14. Specifically, the spacer 54 may be connected to the radiation source 36 to fix the spacer 54, the spacer 54 may be connected to the housing 12 to fix the spacer 54, the spacer 54 may be connected to the motor 14 to fix the spacer 54, the spacer 54 may be connected to the radiation source 36 and the housing 12 to fix the spacer 54, the spacer 54 may be connected to the radiation source 36 and the motor 14 to fix the spacer 54, the spacer 54 may be connected to the housing 12 and the motor 14 to fix the spacer 54, and the spacer 54 may be connected to the radiation source 36, the housing 12 and the motor 14 to fix the spacer 54. When spacer 54 is coupled to radiation source 36, spacer 54 may be coupled to reflector cup 38 of radiation source 36.

In one embodiment, at least a portion of the insulation 54 is thermal insulation. Specifically, the thermal shield may insulate a portion of the heat from the radiation source 36 so that the radiation source 36 operates in a normal temperature range.

In one embodiment, the heat generating source located upstream of the wind tunnel 20 is a second heat generating source 46, the second heat generating source 46 is a non-radiation source, and at least a portion of the second heat generating source 46 is located upstream of the motor 14 in the direction of flow of the airflow. In particular, the non-radiation source may heat the gas stream. The heated airflow may flow through the motor 14, be accelerated and rectified by the motor 14, and then flow to a heat generating source adjacent the airflow outlet 24.

In one embodiment, the second heat-generating source 46 is an electric heat-generating member. Specifically, when the electric heating element is powered on, heat is generated to heat the air flow passing through the electric heating element. The electric heating member may include a heating wire 56. In other embodiments, the second heat-generating source 46 may include a ceramic or the like.

In one embodiment, the electric heat generating member comprises a plurality of heating segments connected, distributed in the circumferential direction of the electric heat generating member, at least one heating segment being located upstream of the motor 14 in the flow direction of the air flow. Specifically, at least one heating section is located upstream of the electric machine 14 such that airflow heated by the heating section may flow toward the electric machine 14. At least one heating section is located upstream of the motor 14, one or several heating sections are located upstream of the motor 14 and other heating sections may be located circumferentially around the motor 14, one or several heating sections are located upstream of the motor 14 and other heating sections are located downstream of the motor 14, one or several heating sections are located upstream of the motor 14 and one or several heating sections are located downstream of the motor 14 and one or several heating sections are located circumferentially around the motor 14, or all heating sections are located upstream of the motor 14.

Each heating section can be controlled by a switch independently, or all the heating sections can be controlled by switches integrally.

The power of each heating section can be controlled independently, or the power of all the heating sections can be controlled integrally for all the heating sections as a whole.

In one embodiment, the at least one heating section is configured to extend in a circumferential direction of the electric heat generating member. Specifically, the heating section extending along the circumferential direction of the electric heating element can heat the air flow in the circumferential direction of the electric heating element.

The at least one heating section is configured to extend along a circumferential direction of the electric heating element, and it can be similarly understood with reference to the above description of the at least one heating section being located upstream of the motor 14, and is not specifically described herein.

In one embodiment, the electric heat generating component includes a plurality of heating groups connected, the plurality of heating groups being spaced apart in the flow direction of the air flow, and at least one heating group being located upstream of the motor 14. In particular, at least one heating group is located upstream of the electric machine 14, so that the air flow heated by this heating group can flow towards the electric machine 14.

At least one heating group is located upstream of the motor 14, one or several heating groups are located upstream of the motor 14 and other heating groups are located circumferentially around the motor 14, one or several heating groups are located upstream of the motor 14 and other heating groups are located downstream of the motor 14, one or several heating groups are located upstream of the motor 14 and one or several heating groups are located downstream of the motor 14 and one or several heating groups are located circumferentially around the motor 14, or all heating groups are located upstream of the motor 14.

Each heating group can be controlled to be switched on and off independently, and the switches of all the heating groups can be controlled integrally for all the heating groups as a whole.

The power of each heating group can be controlled independently, or the power of all the heating groups can be controlled integrally for all the heating groups as a whole.

In one embodiment, the at least one heating group is configured to extend in a circumferential direction of the electric heat generating member. Specifically, the heating group extending along the circumferential direction of the electric heating element can heat the airflow in the circumferential direction of the electric heating element.

In one embodiment, referring to fig. 35 and 36, the heat pack includes a heating wire 56, the heating wire 56 includes a plurality of layers spaced apart in a flow direction of the air flow, and at least one layer of the heating wire 56 is configured in a ring shape. In particular, the multilayer heating wire 56 may provide multiple levels of heating to the airflow such that the airflow can be heated to a desired temperature.

At least one layer of heating wires 56 is configured in a ring shape, it is possible that one or several layers of heating wires 56 are configured in a ring shape and other layers are configured in other shapes (e.g., a straight shape, a curved shape, etc.), it is possible that all layers of heating wires 56 are configured in a ring shape.

In one embodiment, referring to fig. 35 and 36, the heating wire 56 includes a plurality of connected heat generating portions 58, the heat generating portions 58 including a first portion 60, a second portion 62, and a third portion 64, wherein,

the first portion 60 extends in a radial direction,

one end of the second portion 62 is connected to the radially outer end of the first portion 60, the other end of the second portion 62 extends circumferentially away from the first portion 60,

one end of the third portion 64 is connected to the radially inner end of the first portion 60, and the other end of the third portion 64 extends circumferentially away from the first portion 60 and away from the second portion 62.

Specifically, referring to fig. 36, in two connected sets of heat generating portions 58, the other end of the second portion 62 of one set of heat generating portions 58 may be connected to the other end of the second portion 62 of the other set of heat generating portions 58. Of the two connected sets of heat generating portions 58, the other end of the third portion 64 of one set of heat generating portions 58 may be connected to the other end of the third portion 64 of the other set of heat generating portions 58, thereby connecting all of the heat generating portions 58.

In one embodiment, referring to fig. 35, the second heat generating source 46 is supported by a bracket 66, the shape of the bracket 66 is adapted to the shape of the casing 12 and the shape of the second heat generating source 46, respectively, and the bracket 66 is a high temperature resistant material. Specifically, the bracket 66 may support the second heat-generating source 46, reducing the amount of deformation that occurs as the temperature of the second heat-generating source 46 increases.

In one embodiment, the second heat generating source 46 is supported in the main body 16 by a bracket 66, and the shape of the bracket 66 is adapted to the shape of the casing 12 and the shape of the second heat generating source 46, respectively, it is understood that the shape of the part of the bracket 66 connected to the main body 16 is adapted to the shape of the main body 16, and the shape of the part of the bracket 66 connected to the second heat generating source 46 is adapted to the shape of the second heat generating source 46, for example, the inner wall of the main body 16 is cylindrical, and the part of the bracket 66 connected to the main body 16 is circular in the circumferential direction, or is a part of a circle. The second heat-generating source 46 is cylindrical, and the portion of the bracket 66 connected to the second heat-generating source 46 is circular or a portion of a circle in the circumferential direction, so that the bracket 66 can be connected to the main body 16 and the second heat-generating source 46 more closely.

The bracket 66 is made of a high temperature resistant material, and the bracket 66 can bear the heat influence of the second heat source 46 during operation, thereby reducing the deformation of the bracket 66 and avoiding the negative influence on the heating of the air flow. The high temperature resistant material can withstand the heat generated by the second heat generating source 46 during operation, and may be a plastic part, a metal part, a ceramic part, or the like.

In one embodiment, the bracket 66 is provided with a mounting slot 68, and the second heat generating source 46 is mounted in the mounting slot 68. Specifically, the second heat generation source 46 may include the heating wire 56, and the mounting groove 68 enables a limited mounting of the heating wire 56 by providing the mounting groove 68 on the bracket 66, so that the heating wire 56 can be conveniently mounted in the mounting groove 68, and the heating wire 56 is not easily deformed and displaced during operation.

The mounting slots 68 are positioned such that the brackets 66 extend radially beyond the outer surface of the second heat-generating source 46 such that the second heat-generating source 46 is disposed on the brackets 66 without the second heat-generating source 46 having an outwardly projecting configuration.

In one embodiment, an axial end 69 of the bracket 66 extends beyond a corresponding axial end 71 of the second heat-generating source 46, and the axial end 69 of the bracket 66 that extends beyond the second heat-generating source 46 extends radially beyond the second heat-generating source 46 to form a mounting slot 68 in the bracket 66. Specifically, the fitting groove 68 is ring-shaped, and the axial section of the fitting groove 68 is substantially U-shaped. In fig. 34, the axial end 69 of the bracket 66 extends beyond the corresponding axial end 71 of the second heat generating source, the second heat generating source 46 extends radially to the axis a, and the axial end 69 of the bracket 66 extends radially to the axis B, which exceeds the axis a, such that the second heat generating source 46 is confined by the fitting groove 68 both axially and radially.

In one embodiment, both ends of the bracket 66 extend beyond the axial end portions of the second heat generation source 46, respectively, in the axial direction of the bracket 66, and both axial ends of the bracket 66 extend beyond the second heat generation source 46 in the radial direction to form a fitting groove 68 in the axial middle portion of the bracket 66.

In one embodiment, the cradle 66 includes a plurality of limbs 70, the plurality of limbs 70 connected at a middle portion of the second heat-generating source 46, each limb 70 extending radially outward from the middle portion. Specifically, the rami 70 may have a radial length of the cross-section of the stent 66, i.e., a plurality of rami 70 are interconnected at one end and extend radially outward at the other end.

In other embodiments, the branch 70 may have a diameter length of the cross-section of the stent 66, i.e., a plurality of branches 70 are connected to each other at their middle portions and extend radially at their ends.

In one embodiment, each of the fins 70 has a predetermined length in the axial direction of the second heat generating source 46 that is greater than the axial length of the second heat generating source 46. Specifically, since the predetermined length of the branch blade 70 is greater than the axial length of the second heat generation source 46, the branch blade 70 has a protruding portion in the axial direction with respect to the second heat generation source 46, and the protruding portion can be used to separate the second heat generation source 46 from other components in the casing 12, thereby reducing adverse effects of the heat of the second heat generation source 46 on other components of the drying apparatus 100.

In one embodiment, the second heat generating source 46 includes a plurality of layers spaced apart along the axial direction, at least one positioning groove 72 is provided on an outer circumferential surface of at least one of the branch blades 70, and at least one layer of the second heat generating source 46 is positioned within the positioning groove 72. Specifically, the positioning groove 72 can position the second heat generation source 46 positioned within the positioning groove 72, avoiding displacement of the second heat generation source 46. In the illustrated embodiment, the positioning groove 72 is formed on the inner bottom surface of the fitting groove 68.

Specifically, the number of the positioning grooves 72 may be one or more (e.g., two or more), and when there is one positioning groove 72, one positioning groove 72 may be disposed on the bottom surface of the assembly groove 68 in a ring shape, or may be disposed on the bottom surface of the assembly groove 68 in a spiral shape. When there are a plurality of positioning grooves 72, the plurality of positioning grooves 72 may be arranged in a one-to-one correspondence with the plurality of layers of the second heat generating sources 46, and the positioning grooves 72 may be ring-shaped and arranged at intervals on the bottom surface of the assembling groove 68.

In one embodiment, referring to fig. 33, the drying apparatus 100 further includes a mounting seat 74, at least a portion of the second heat generating source 46 is disposed in the mounting seat 74, the mounting seat 74 is mounted in the air duct 20, the shape of the mounting seat 74 is matched with the shape of the air duct 20, and the mounting seat 74 is connected to at least one of the motor 14, the first heat generating source 44 and the housing 12. Specifically, the mounting seat 74 may mount the second heat generating source 46 in the casing 12, the mounting seat 74 is mounted in the air duct 20, and the shape of the mounting seat 74 is adapted to the shape of the air duct 20, which may be understood as that the mounting seat 74 connected to the air duct 20 has a shape adapted to the shape of the air duct 20, for example, the inner wall of the air duct 20 is cylindrical, and the mounting seat 74 connected to the air duct 20 has a circular shape or a part of a circular shape in the circumferential direction, so that the mounting seat 74 can be connected to the inner wall of the air duct 20 more tightly.

The mounting seat 74 is connected to at least one of the motor 14, the first heat generating source 44, and the housing 12, the mounting seat 74 may be connected to the motor 14, the mounting seat 74 may be connected to the first heat generating source 44, the mounting seat 74 may be connected to the housing 12, the mounting seat 74 may be connected to the motor 14 and the first heat generating source 44, the mounting seat 74 may be connected to the motor 14 and the housing 12, the mounting seat 74 may be connected to the first heat generating source 44 and the housing 12, or the mounting seat 74 may be connected to the motor 14, the first heat generating source 44, and the housing 12.

In one embodiment, referring to fig. 33, the mounting base 74 has a mounting space 76, and the bracket 66 and the second heat generating source 46 are mounted to the mounting space 76. Specifically, the bracket 66 and the second heat generating source 46 are mounted in the mounting space 76, so that the mounting seat 74, the bracket 66 and the second heat generating source 46 form a compact overall structure, and the mounting seat 74 can protect the second heat generating source 46 and the bracket 66.

In one embodiment, referring to fig. 30-32, the mounting seat 74 includes a bottom wall 78 and a peripheral wall 80, with an axial end of the peripheral wall 80 connected to the bottom wall 78 to form the mounting space 76 between the peripheral wall 80 and the bottom wall 78. Specifically, the peripheral wall 80 is annular along the circumferential direction of the mounting seat 74, one axial end of the peripheral wall 80 is connected to the bottom wall 78, and the other axial end of the peripheral wall 80 is open, so that the airflow heated by the second heat generating source 46 in the mounting space 76 can flow toward the motor 14. A part of the motor 14 may protrude into the mounting space 76 from an axial open end of the peripheral wall 80, and the motor 14 may be located outside the mounting space 76. The bottom wall 78 may be closed, i.e. the bottom wall 78 is not provided with a through hole, and the bottom wall 78 may also be provided with a through hole communicating with the mounting space 76, and the through hole can be penetrated by a wire harness.

In one embodiment, the bottom wall 78 is adjacent an inner wall of the housing 12 and the peripheral wall 80 is provided with vent holes 82, and the airflow enters the second heat generating source 46 through the vent holes 82. Specifically, the airflow may enter the mounting space 76 from the ventilation holes 82 circumferentially distributed in the mounting seat 74, and be heated by the second heat generation source 46, and the heated airflow may flow toward the motor 14 through the open end of the peripheral wall 80, and be accelerated and rectified by the motor 14.

The second heat generating source 46 is located inside the main body 16, and the bottom wall 78 may be adjacent to a right-end inner wall of the main body 16, and further, an outer side of the bottom wall 78 is fitted to the right-end inner wall of the main body 16. The outer side of the bottom wall 78 is adapted to the inner wall of the right end of the main body 16, and it is understood that the outer side of the bottom wall 78 connected to the inner wall of the right end of the main body 16 is adapted to the inner wall of the right end of the main body 16, for example, the inner wall of the right end of the main body 16 is cylindrical, and the outer side of the bottom wall 78 connected to the inner wall of the right end of the main body 16 is circular or a part of a circle in the circumferential direction, so that the mounting seat 74 can be connected to the main body 16 more tightly.

The peripheral wall 80 is provided with a vent 82, so that the air flow is radially transferred from the outside of the peripheral wall 80 to the installation space 76 in the peripheral wall 80, and then is heated by the second heat generating source 46 in the installation space 76, and the heated air flow is axially transferred to the direction of the motor 14, that is, the air flow radially enters the second heat generating source 46 from the peripheral wall 80, and is axially transferred to the motor 14 after being heated. Specifically, the circumferential surface is provided with air and the heating mode has high heat exchange efficiency, the branch blades 70 extending in the radial direction can guide the inlet air, and the heated air flow flows through the motor 14 to be rectified. If the second heat generating source 46 is placed downstream of the motor 14, the rectified airflow is again disturbed, and the provision of radially extending fins 70 is also not possible. Therefore, it is more advantageous from the viewpoint of airflow rectification that the second heat generation source 46 is disposed upstream of the motor 14 than downstream of the motor 14.

In one embodiment, the housing 12 is provided with an airflow inlet 22, and the airflow inlet 22 is configured in a ring shape that fits into the vent 82. Specifically, the airflow inlet 22 may be disposed at one axial end of the main body 16 (as shown in the right end of the main body 16), and the annular airflow inlet 22 may enable airflow to enter the main body 16 more uniformly, so as to avoid noise caused by air pressure difference generated inside the housing 12 due to non-uniform intake of air, thereby improving user experience.

The peripheral wall 80 is annular along the circumferential direction of the mounting seat 74, the vent holes 82 are distributed on the annular surface of the peripheral wall 80, and the airflow inlets 22 are configured to be annular to fit with the vent holes 82, so that the vent holes 82 can allow airflow entering from the airflow inlets 22 to enter the mounting space 76 in the circumferential direction, and therefore the second heat generation source 46 can quickly and uniformly heat the airflow entering from the airflow inlets 22.

In one embodiment, the airflow inlet 22 of the air duct 20 is formed at the right end of the main body 16, and the airflow direction in the main body 16 is: the airflow inlet 22 in the right end wall of the main body 16, the vent 82 in the peripheral wall 80 of the mounting block 74, the multi-layer heating wire 56, the motor 14, and the airflow outlet 24.

In one embodiment, the airflow inlet 22 of the air duct 20 is formed in the handle 18 and is formed in a ring shape, and the flow direction of the air entering through the airflow inlet 22 of the handle 18 may be: the airflow inlet 22 of the handle 18, the vent 82 of the peripheral wall 80 of the mounting block 74, the multi-layer heating wire 56, the motor 14, and the airflow outlet 24.

In one embodiment, the mounting block 74 includes a mounting wall 84, the perimeter wall 80 being connected to the mounting wall 84, the mounting wall 84 being connected to the housing 12. Specifically, the mounting wall 84 and the bottom wall 78 connect both ends of the peripheral wall 80 in the axial direction, respectively, and the mounting wall 84 is connected to the housing 12 so that the mount 74 can be fixed.

In one embodiment, the axially other end of the peripheral wall 80 is connected to the inside of the mounting wall 84, and the outer peripheral surface of the mounting wall 84 fits into the housing 12. Specifically, the peripheral wall 80 circumferentially surrounds the second heat generation source 46, the other end in the axial direction of the peripheral wall 80 is connected to the inside of the mounting wall 84, and the bottom wall 78 is connected to the inside of one end in the axial direction of the peripheral wall 80, so that the bottom wall 78 and the mounting wall 84 are located inside and outside the one end in the axial direction of the peripheral wall 80, respectively.

The outer peripheral surface of the mounting wall 84 is fitted to the housing 12 so that the mounting wall 84 can be relatively tightly coupled with the housing 12. For example, the inner wall of the body 16 is cylindrical and the outer periphery of the mounting wall 84 is rounded to fit the inner wall of the body 16.

In one embodiment, the peripheral wall 80 is cylindrical or the mounting block 74 is cylindrical, and the vents 82 are evenly distributed across the surface of the cylindrical structure. Specifically, the peripheral wall 80 is cylindrical, or the mount 74 is cylindrical, and the vent holes 82 are evenly distributed on the surface of the cylindrical structure so that the airflow can flow evenly in the circumferential direction to the second heat generation source 46, and the airflow is smooth. The airflow into the mounting space 76 may be heated by the second heat generating source 46, and the resulting heated airflow at a uniform temperature may flow toward the motor 14.

In one embodiment, the second heat generating source 46 is cylindrical or circular in cross-section, and the second heat generating source 46 is disposed coaxially with the peripheral wall 80. Specifically, the shape of the second heat generation source 46 is adapted to the shape of the peripheral wall 80 so that the air flow flowing in from the circumferential direction is in contact with the second heat generation source 46, thereby causing the air flow to be uniformly heated.

Since the heating wire 56 of the second heat generating source 46 is arranged in a cylindrical shape and disposed in the mounting seat 74, the annular air flow planned by the vent holes 82 of the peripheral wall 80 of the mounting seat 74 is equivalent to flowing radially from the outer peripheral surface of the heating wire 56 into the interior at the same time, the contact surface is large, and the heat exchange efficiency is high. The radial air intake direction of the outer peripheral surface of the heating wire 56 is substantially perpendicular to the air flow of the air duct 20, and although the heating efficiency is high, the air flow is greatly disturbed, so it is preferable to dispose the second heat generating source 46 upstream of the motor 14, or because the second heat generating source 46 can be disposed upstream of the motor 14, the problem of air flow disturbance caused by the second heat generating source 46 can be eliminated, and how to optimize the structure can be considered in terms of increasing the heating efficiency.

Furthermore, the branch blades 70 of the bracket 66 extend along the radial direction of the cylinder and are substantially parallel to the air inlet direction, so that the wind guiding and flow stabilizing effects can be achieved.

In one embodiment, the second heat generating source 46 includes a heating wire 56, and the bracket 66 and the heating wire 56 are secured to the mounting block 74 by a mounting cover 86. Specifically, the bracket 66 and the heating wire 56 and the mounting seat 74 may be fixed at one axial end of the mounting cover 86. The heating wire 56 is supported on the bracket 66, the bracket 66 may be fixed to an inner side of the mounting cover 86, and the mounting seat 74 may be fixed to an outer side of the mounting cover 86.

Wherein the motor 14 may rest against the front side of the mounting base 74 and/or the mounting cover 86. The radial dimension of the annular second heat generating source 46 is slightly larger than the diameter of the motor 14, so as to accommodate the end of the motor 14 in the mounting cover 86, improve the heating and rectifying effects on the air, and simultaneously, the heavier motor 14 can be placed in the middle of the main body 16, thereby reasonably distributing the overall weight and avoiding the problem of inconvenient use caused by unreasonable weight distribution.

In one embodiment, the mounting cover 86 fits into the mounting space 76 of the mounting block 74, and the mounting cover 86 is removably attached to the mounting block 74. Specifically, the mounting cover 86 is detachably coupled to the mounting base 74, so that the mounting cover 86 with the bracket 66 and the heating wire 56 can be easily removed, and the damaged bracket 66 or heating wire 56 can be replaced or repaired. The removable attachment of the mounting cover 86 to the mounting block 74 includes, but is not limited to, a snap-fit attachment, a screw attachment, and the like.

The mounting cover 86 is adapted to the mounting space 76 of the mounting base 74 such that the bracket 66 and the heating wire 56 on the mounting cover 86 extend into the mounting space 76 and the heating wire 56 is energized to heat the airflow entering the mounting space 76 through the vent 82.

In one embodiment, the mounting cover 86 defines a retention aperture 88, and a portion of the bracket 66 is removably mounted within the retention aperture 88. Specifically, the plurality of limiting holes 88 on the mounting cover 86 are adapted to the plurality of support leaves 70 of the bracket 66 in a one-to-one correspondence manner, in the illustrated embodiment, one axial end of the mounting cover 86 is provided with an axial protrusion 90, the axial protrusion 90 is provided with a plurality of axial protrusions along the circumferential direction, each axial protrusion 90 is provided with a limiting hole 88, each support leaf 70 of the bracket 66 comprises a mounting arm 92 along the circumferential direction, the heating wire 56 can surround the circumferential side surface of the mounting arm 92, and the axial tail end of each mounting arm 92 is detachably mounted in a corresponding limiting hole 88. In this way, the bracket 66 with the heating wire 56 can be easily detached from or attached to the mounting cover 86, so that the bracket 66 or the heating wire 56 can be replaced or repaired, thereby reducing the maintenance cost of the drying apparatus 100.

In one embodiment, a shock absorbing bumper (not shown) is provided between the motor 14 and the mount 74. Specifically, in the flowing direction of the air flow, the second heat generating source 46 is located upstream of the motor 14, the motor 14 is connected to the mounting seat 74 through a shock absorbing buffer, the shock absorbing buffer can reduce the transmission of the shock during the operation of the motor 14 to the mounting seat 74, and prevent the mounting seat 74 or the components on the mounting seat 74 from being displaced due to the shock, thereby improving the reliability of the drying apparatus 100. The shock absorbing buffers may include foam, springs, rubber, etc.

In other embodiments, the second heat-generating source 46 is located upstream of the motor 14 in the direction of flow of the airflow, with the motor 14 being spaced from the mounting block 74.

In one embodiment, referring to fig. 37 to 39, the drying apparatus 100 includes a protection structure 94, the second heat source 46 is enclosed to form an accommodating space 96, and the protection structure 94 is installed in the accommodating space 96. Specifically, the protection structure 94 may protect electrical components such as the second heat source 46, and when the second heat source 46 is abnormal in operation (e.g., overcurrent or overheat), the protection structure 94 may open the circuit to prevent the electrical components of the drying apparatus 100 from being damaged due to abnormal conditions such as overcurrent and overheat. In addition, the protection structure 94 is installed in the accommodating space 96, and the protection structure 94 is easier to position. Moreover, the protective structure 94 is also sensitive because the airflow is not directed to the protective structure 94 until it is heated by the second heat generating source 46.

In one embodiment, the protective structure 94 is a plurality, and the plurality of protective structures 94 are mounted to the plurality of leaves 70 of the bracket 66, respectively. In particular, the plurality of protective structures 94 may provide multiple protections, increasing the safety of the drying apparatus 100. And the plurality of protective structures 94 are mounted to the plurality of leaves 70 of the bracket 66, respectively, such that the plurality of protective structures 94 have less interaction with each other.

In one embodiment, protective structure 94 is located in the middle where the plurality of leaflets 70 meet. Specifically, the protection structure 94 located in the middle where the plurality of branch leaves 70 meet may be located on the central axis of the second heat source 46, the protection structure 94 may include a temperature sensor, the protection structure 94 is installed in the accommodating space 96, when the second heat source 46 works, the temperature in the accommodating space 96 may rise, the protection structure 94 located in the middle where the plurality of branch leaves 70 meet may more accurately collect the temperature when the second heat source 46 works, and whether the accuracy of protection is triggered is improved. If the protection circuit is not on the central axis and is greatly influenced by the temperature of the local position, the situation that the protection is triggered when the integral exceeds the standard and the local exceeds the standard possibly exists.

Moreover, if the second heat-generating source 46 is placed downstream of the motor 14, it is not possible to provide the associated structure on the central axis of the second heat-generating source 46 because the provision of the associated structure disturbs the air flow. The second heat-generating source 46 is disposed upstream of the motor 14, and since the airflow entering upstream does not pass through the motor 14, and is somewhat turbulent, the protective structure 94 in the airflow has little effect on the airflow.

In one embodiment, the protection structure 94 includes a temperature control structure 98, the temperature control structure 98 is configured to maintain a path at a normal temperature and deform to break when the temperature reaches a first temperature threshold, and the temperature control structure 98 is located substantially in the middle within the receiving space 96. Specifically, the temperature control structure 98 may include a mechanical thermostat that operates on the principle of expansion with heat and contraction with cold of an object. The expansion with heat and the contraction with cold are the commonness of the objects, but the different objects have different degrees of expansion with heat and contraction with cold. The mechanical temperature controller is provided with two metal conductors with different thermal expansion coefficients, and the metal conductors are bent to touch a set contact or a switch due to different expansion and contraction degrees at a changing temperature, so that a set circuit (protection) starts to work. When the temperature of the second heat generating source 46 is lower than the first temperature threshold, the thermostat may be restored, i.e. the protection mechanism of the thermostat is reversible and may be repeatedly protected.

The temperature control structure 98 is located in the substantially middle portion of the accommodating space 96, so as to improve the accuracy of whether to trigger protection.

In one embodiment, the drying apparatus 100 includes a controller (not shown) electrically connecting the protective structure 94 and the second heat generating source 46, the protective structure 94 being configured to obtain a temperature parameter, and the controller being configured to control the second heat generating source 46 based on the temperature parameter. Specifically, the drying apparatus 100 may have a second temperature threshold preset, and the controller compares the temperature parameter obtained by the protection structure 94 with the second temperature threshold, and when the temperature parameter is greater than or equal to the second temperature threshold, the controller may control the second heat generation source 46 to be turned off, for example, the controller may control the switching element to be turned off to turn off the second heat generation source 46. In the case that the temperature parameter is smaller than the second temperature threshold, the controller may control the second heat generating source 46 to operate, for example, the second heat generating source 46 may be operated by controlling the switch member to be closed. The second temperature threshold may be less than the first temperature threshold.

In one embodiment, referring to fig. 38, the protective structure 94 includes a thermistor 99, a thermostat, and a thermal fuse 97. Specifically, the thermistor 99 may be located in the middle of the intersection of the plurality of branches 70, the thermistor 99 may serve as a temperature sensor, and the controller may collect temperature data via the thermistor 99. The thermostat may be located substantially centrally within the receiving space 96.

The thermal fuse 97 may be located at one side in the accommodating space 96. In the case where the temperature of the second heat generation source 46 reaches the third temperature threshold value, the thermal fuse 97 is blown. The third temperature threshold is greater than the first temperature threshold. The thermal fuse 97 is not recoverable after it is blown. Specifically, the thermal fuse 97 may be a thermal fuse, which is a temperature-sensitive circuit breaker. The thermal fuse 97 can sense overheating generated during abnormal operation of the drying apparatus, thereby cutting off a circuit to prevent a fire, and the thermal fuse 97 cannot be reused after operation and operates only once at a fusing temperature. Therefore, the temperature of the heater can be effectively prevented from exceeding the threshold value, and safety accidents are avoided.

In its embodiment, the protective structure 94 comprises a thermistor 99, or the protective structure 94 comprises a thermostat, or the protective structure 94 comprises a thermal fuse 97, or the protective structure 94 comprises a thermistor 99 and a thermostat, as shown in fig. 39, or the protective structure 94 comprises a thermistor 99 and a thermal fuse 97, or the protective structure 94 comprises a thermostat and a thermal fuse 97.

In one embodiment, the heat-generating source upstream of the wind tunnel 20 is a second heat-generating source 46, and the second heat-generating source 46 is the radiation source 36. Specifically, the radiation source 36 may emit infrared radiation outward to dry the object.

In one embodiment, the heat generating source located downstream of the air chute 20 is a first heat generating source 44, and the first heat generating source 44 is a non-radiation source. Specifically, the drying apparatus 100 includes a radiation source 36 and a non-radiation source, the non-radiation source may be disposed adjacent to the airflow outlet 24, the radiation source 36 is located upstream of the air duct 20, and the motor 14 may be located between the radiation source 36 and the non-radiation source or the radiation source 36 is located between the motor 14 and the non-radiation source in the flow direction of the airflow.

In one embodiment, the first heat generating source 44 is disposed out of the optical path of the radiation source 36. Specifically, the first heat source 44 is disposed outside the optical path of the radiation source 36, so as to reduce the shielding of the radiation energy of the radiation source 36 by the first heat source 44. The first heat generating source 44 may be arranged in a ring shape, and the light path of the radiation source 36 passes through the space enclosed by the ring shape. The first heat generating source 44 may also be positioned outside one or more sides of the optical path of the radiation source 36.

In one embodiment, the heat generating source located downstream of the air chute 20 is a first heat generating source 44, and the first heat generating source 44 is a radiation source 36. Specifically, the drying apparatus 100 includes the radiation sources 36 located downstream and upstream of the air duct 20, and the radiation sources 36 in the two positions may be operated simultaneously or alternately, or the radiation source 36 in one position may be turned on, the radiation source 36 in the other position may be turned off, and so on, as required by the drying efficiency.

In one embodiment, the first heat-generating source 44 and the second heat-generating source 46 are oriented in the same direction and form one or more spots outside the housing 12. Specifically, the first heat generating source 44 and the second heat generating source 46 are oriented in the same direction, and an object located at one orientation outside the drying apparatus 100 may be dried. The first heat-generating source 44 and the second heat-generating source 46 may both be directed toward the airflow outlet 24, and at least a portion of the spot projected by the first heat-generating source 44 outside the drying apparatus 100 may overlap with at least a portion of the spot projected by the second heat-generating source 46 outside the drying apparatus 100 to form a spot having a larger area and/or a larger radiant energy. The spot projected outside of the drying apparatus 100 by the first heat generating source 44 may not overlap with the spot projected outside of the drying apparatus 100 by the second heat generating source 46 to form a plurality of spots. In other embodiments, the first and second heat-generating

sources

44, 46 may be oriented in other locations and are not limited to the airflow outlet 24.

The orientation of the first heat generating source 44 is the same as the orientation of the second heat generating source 46, and it is understood that the angle between the orientation of the first heat generating source 44 and the orientation of the second heat generating source 46 is 0 degrees.

The orientation of the radiation source 36 may be determined by the orientation of the opening axis of the reflector cup 38 of the radiation source 36.

In one embodiment, the first heat-generating source 44 and the second heat-generating source 46 are oppositely oriented. Specifically, the first heat generating source 44 and the second heat generating source 46 are oriented oppositely, and objects located outside the drying apparatus 100 and oriented oppositely may be dried. In one embodiment, the airflow outlet 24 and the airflow inlet 22 are disposed at the left and right ends of the body 16 in the axial direction, respectively, and the first heat generating source 44 may face the airflow outlet 24 and the second heat generating source 46 may face the airflow inlet 22. The first heat generating source 44 is oriented opposite to the second heat generating source 46, and it is understood that the angle between the orientation of the first heat generating source 44 and the orientation of the second heat generating source 46 is 180 degrees.

In other embodiments, the first and second

heat generating sources

44, 46 may be directed elsewhere, and are not limited to the airflow outlet 24 and the airflow inlet 22.

In one embodiment, the orientation of the first heat generating source 44 and the orientation of the second heat generating source 46 have an angle therebetween that is not zero. Specifically, the first heat source 44 and the second heat source 46 are oriented at an angle different from zero, so that objects with different orientations outside the drying apparatus 100 can be dried. The first heat generating source 44 may be oriented toward the airflow outlet 24 and the second heat generating source 46 may be oriented at another location that is different from the airflow outlet 24 such that the orientation of the first heat generating source 44 and the orientation of the second heat generating source 46 have an angle therebetween that is different than zero.

The angle between the orientation of the first heat generating source 44 and the orientation of the second heat generating source 46 may be one of an acute angle, a right angle, and an obtuse angle.

In other embodiments, the first and second

heat generating sources

44, 46 may be oriented in other locations and are not limited to the airflow outlet 24 and the airflow inlet 22.

In summary, the drying apparatus 100 of the embodiment of the present application can achieve technical effects including, but not limited to, the following:

1. the dual heat source design of the radiation source 36+ the non-radiation source can realize the superposition of two heat transfer modes of infrared radiation and hot air flow, and can improve the drying efficiency;

2. because the air flow is preheated, a high-power radiation source 36 is not needed, and the safety can be improved; the cold feeling caused by the starting of the pure radiation source 36 blower can be greatly reduced;

3. due to the infrared radiation, the air flow does not need to be heated to a high temperature, so that the energy consumption can be reduced, and the damage of the high temperature to objects (such as hair) can be reduced;

4. since the air flow does not need to be heated to a high temperature, the hot air flow does not significantly affect the normal operation of the motor 14, making it feasible for the hot air flow to pass through the motor 14, at least part of the second heat-generating source 46 may be disposed upstream of the motor 14;

5. at least part of the second heat source 46 is arranged at the upstream of the motor 14, so that at least part of air is heated by the second heat source 46 firstly, and then is accelerated and rectified by the motor 14, thereby avoiding high temperature of local air flow, improving the temperature uniformity of the outlet air of the drying equipment 100 and improving the use experience; in addition, generally, for the purposes of wind concentration, noise reduction, and the like, it is necessary to plan the airflow passage of the motor 14 to avoid a structure for blocking the airflow in the airflow passage, so that the second heat source 46 is disposed upstream of the motor 14 to avoid an influence on the air path downstream of the motor 14;

6. in the whole airflow channel, the heating structure is divided into two parts which are respectively positioned at the upstream and the downstream of the motor 14, so that the blocking effect of the heating structure on the airflow can be reduced, the structural layout of the motor 14 and a heating source is more diversified, the rationality of the spatial layout can be improved, and the miniaturization of the whole machine is facilitated;

7. the motor 14 with heavier weight is beneficial to be arranged at the middle position (such as the middle position of the main body 16), so that the problem of inconvenient use caused by unreasonable weight distribution can be avoided to a certain extent.

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

1. Drying apparatus, characterized in that it comprises:

the air outlet is arranged on the shell, and the air outlet is arranged on the shell;

2. The drying apparatus according to claim 1, wherein the heat generation source located downstream of the air duct is a first heat generation source, the housing includes a main body and a handle, the main body is connected to the handle, and the airflow outlet and the first heat generation source are provided in the main body.

3. The drying apparatus according to claim 2, wherein the air duct includes a first flow passage that penetrates the main body, the motor is located in the main body, the plurality of heat generation sources includes a second heat generation source that is located in the main body, and at least a part of the second heat generation source is located upstream of the motor in a flow direction of the air flow.

4. Drying apparatus according to claim 1 in which a thermally insulating fluid guide is provided between the two heat generating sources.

5. The drying apparatus of claim 4, wherein the two heat generating sources include a radiation source and a non-radiation source, the non-radiation source being located between the motor and the radiation source, the insulated drain separating at least a portion of the radiation source and at least a portion of the non-radiation source.

6. Drying apparatus according to claim 5, characterised in that the outer wall of the thermally insulated flow guide facing the motor is designed in a shape which reduces the wind resistance.

7. The drying apparatus of claim 2, wherein the duct includes a second flow passage that enters the air from the handle and communicates the handle and the body.

8. The drying apparatus according to claim 7, wherein the motor is located within the main body, the plurality of heat generating sources includes a second heat generating source,

the second heat generation source is positioned in the main body, and at least part of the second heat generation source is positioned upstream of the motor in the flowing direction of the airflow; alternatively, the first and second electrodes may be,

the second heat-generating source is located in the handle, and is located upstream of the motor in a flow direction of the air flow.

9. The drying apparatus of claim 7, wherein the motor is located within the handle, the plurality of heat-generating sources includes a second heat-generating source,

the second heat generating source is positioned in the handle, and at least part of the second heat generating source is positioned at the upstream of the motor; alternatively, the first and second electrodes may be,

the second heat-generating source is located in the handle, and at least part of the second heat-generating source is located downstream of the motor.

10. The drying apparatus of claim 7, wherein the plurality of heat-generating sources includes a second heat-generating source located within the body, wherein the first heat-generating source is a radiation source.

11. The drying apparatus of claim 2, wherein the duct comprises an upstream duct and a downstream duct, wherein the upstream duct comprises a plurality of portions that converge to form the downstream duct, and wherein a portion of the upstream duct is located within the main body and another portion of the upstream duct is located within the handle.

12. The drying apparatus according to claim 11, wherein the plurality of heat generation sources includes a second heat generation source where portions of the upstream air path converge,

the motor is located within the main body, downstream of at least a portion of the second heat-generating source in a flow direction of the airflow, or,

the motor is located within the handle and is located downstream of at least a portion of the second heat generating source in a direction of flow of the airflow.

13. The drying apparatus of claim 11, wherein portions of the upstream air chute converge at the motor, the plurality of heat-generating sources including a second heat-generating source, the second heat-generating source being located within the handle.

14. The drying apparatus of claim 11, wherein portions of the upstream air chute converge at the first heat generating source, the plurality of heat generating sources includes a second heat generating source, the motor and the second heat generating source are both located within the handle,

the second heat generation source is located upstream of the motor in a flow direction of the air flow, or,

the second heat generation source is located downstream of the motor in a flow direction of the air flow.

15. Drying apparatus according to claim 1, wherein the heat generating source downstream of the air duct is a first heat generating source comprising at least one radiation source.

16. The drying apparatus of claim 15, wherein at least one of the radiation sources is located outside the air duct.

17. The drying apparatus of claim 16, wherein at least one of the radiation sources is positioned between the air duct and the housing.

18. The drying apparatus of claim 16, wherein at least one of the radiation sources is positioned along a periphery of the air chute.

19. The drying apparatus of claim 16, wherein at least one radiation source is juxtaposed with the air chute.

20. The drying apparatus of claim 16, wherein said radiation source comprises a plurality, and at least a portion of said motor is located upstream of a plurality of said radiation sources in a flow direction of the gas stream.

21. The drying apparatus of claim 16, wherein the radiation source comprises a plurality,

a plurality of said radiation sources are located to one side of said gas flow outlet; alternatively, the first and second electrodes may be,

the plurality of radiation sources are connected in a ring shape and surround the airflow outlet at the circumferential outer side.

22. The drying apparatus according to claim 16, wherein the plurality of heat-generating sources includes a second heat-generating source, at least a portion of which is located upstream of the motor in a flow direction of the air flow.

23. The drying apparatus according to claim 22, wherein the second heat generation source is disposed apart from the motor in a flow direction of the air flow.

24. The drying apparatus according to claim 22, wherein the second heat generating source is a non-radiation source and the second heat generating source is spaced apart from the radiation source.

25. The drying apparatus of claim 22, wherein the motor is located substantially midway between the radiation source and the second heat-generating source.

26. The drying apparatus of claim 15, wherein the radiation source is located within the air duct.

27. The drying apparatus of claim 26, wherein the radiation source is located on one side within the air duct; alternatively, the first and second electrodes may be,

the radiation source is surrounded by the air duct.

28. The drying apparatus of claim 26, wherein a plurality of said radiation sources are spaced apart within a gas flow outlet that circumferentially surrounds each of said radiation sources; alternatively, the first and second electrodes may be,

the radiation sources are connected into a ring shape and are positioned in an air flow outlet, and the air flow outlet respectively surrounds the radiation sources on the inner side and the outer side; alternatively, the first and second electrodes may be,

a plurality of the radiation sources are distributed discretely, and the positions of different radiation sources and the airflow outlet are different.

29. The drying apparatus of claim 26, wherein the plurality of radiation sources are arranged in a ring; alternatively, the first and second liquid crystal display panels may be,

the plurality of radiation sources are arranged in an array.

30. The drying apparatus of claim 26, wherein the first heat generating source comprises one of the radiation sources, and the motor is located upstream of the radiation source in a flow direction of the gas flow.

31. The drying apparatus of claim 30, wherein the radiation source is located to one side of the gas flow outlet; alternatively, the first and second electrodes may be,

the gas flow outlet circumferentially surrounds the radiation source.

32. The drying apparatus according to claim 30, wherein the plurality of heat generating sources includes a second heat generating source, at least a portion of which is located upstream of the motor in a flow direction of the air flow.

33. The drying apparatus of claim 32, wherein the second heat generating source is spaced from the motor.

34. The drying apparatus according to claim 32, wherein the second heat generating source is a non-radiation source and the second heat generating source is spaced apart from the radiation source.

35. The drying apparatus of claim 32, wherein the motor is located substantially midway between the radiation source and the second heat-generating source.

36. The drying apparatus of claim 30, wherein the plurality of heat-generating sources includes a second heat-generating source, the drying apparatus further comprising a spacer disposed within the air duct, and at least a portion of the spacer is positioned between the radiation source and the second heat-generating source.

37. Drying apparatus according to claim 36 in which the airflow is in a channel formed by an inner wall of the duct and an outer wall of the partition.

38. Drying apparatus according to claim 37 in which at least part of the outer wall of the partition forms a guide wall to guide the airflow between the outer wall of the partition and the inner wall of the air duct.

39. Drying apparatus according to claim 38 in which the guide wall is streamlined and extends substantially along the outer wall of the reflector cup of the radiation source.

40. The drying apparatus according to claim 36, wherein the outer wall of the spacer is formed into a generally conical wall, an apex of the outer wall of the spacer faces a side on which the second heat generating source is located, and an end of the spacer remote from the apex has an opening facing the light emitting member of the radiation source.

41. Drying apparatus according to claim 40 in which at least part of the glowing member is located within the opening of the partition.

42. Drying apparatus according to claim 36 in which the partition is located downstream of the motor in the direction of flow of the airflow.

43. The drying apparatus of claim 36, wherein the spacer is coupled to at least one of the radiation source, the housing, and the motor.

44. Drying apparatus according to claim 36 in which at least some of the insulation is thermal insulation.

45. Drying apparatus according to claim 1, wherein the heat-generating source located upstream of the air duct is a second heat-generating source, the second heat-generating source is a non-radiation source, and at least part of the second heat-generating source is located upstream of the motor in the flow direction of the air flow.

46. The drying apparatus according to claim 45, wherein the second heat generating source is an electric heat generating member.

47. Drying apparatus according to claim 46, in which the electrically heat generating element comprises a plurality of heating sections connected, distributed circumferentially of the element, at least one heating section being located upstream of the motor in the direction of flow of the air flow.

48. Drying apparatus according to claim 47 in which at least one of the heating sections is configured to extend circumferentially of the electrically heat generating component.

49. The drying apparatus according to claim 46, wherein the electric heat generating member includes a plurality of heating groups connected, the plurality of heating groups being spaced apart in a flow direction of the air flow, and at least one of the heating groups being located upstream of the motor.

50. Drying apparatus according to claim 49, wherein at least one of the heating groups is configured to extend circumferentially of the electrically heat generating element.

51. The drying apparatus of claim 49, wherein said heater bank comprises heating wires comprising a plurality of layers spaced apart in a direction of flow of the air stream, at least one layer of said heating wires being configured in a loop.

52. The drying apparatus of claim 51, wherein said heating wire comprises a plurality of connected heat generating portions, said heat generating portions comprising a first portion, a second portion, and a third portion, wherein,

the first portion extends in a radial direction and,

one end of the second portion being connected to a radially outer end of the first portion, the other end of the second portion extending circumferentially away from the first portion,

one end of the third portion is connected to the radially inner end of the first portion, and the other end of the third portion extends circumferentially away from the first portion and away from the second portion.

53. The drying apparatus according to claim 45, wherein the second heat generation source is supported by a bracket having a shape that is fitted to a shape of the casing and a shape of the second heat generation source, respectively, and the bracket is a high temperature resistant material piece.

54. The drying apparatus according to claim 53, wherein a fitting groove is provided on the bracket, and the second heat generation source is installed in the fitting groove.

55. The drying apparatus according to claim 54, wherein an axial end of the bracket extends beyond a corresponding axial end portion of the second heat generation source, and the axial end of the bracket that extends beyond the second heat generation source extends radially beyond the second heat generation source to form the fitting groove on the bracket.

56. The drying apparatus according to claim 54, wherein both ends of the bracket extend beyond axial end portions of the second heat generation source, respectively, in an axial direction of the bracket, and both axial ends of the bracket extend beyond the second heat generation source in a radial direction to form the fitting groove in an axial middle portion of the bracket.

57. The drying apparatus of claim 53, wherein the bracket includes a plurality of limbs connected at a central portion of the second heat generating source, each of the limbs extending radially outward from the central portion.

58. The drying apparatus according to claim 57, wherein each of the branch leaves has a preset length in an axial direction of the second heat generation source, the preset length being greater than an axial length of the second heat generation source.

59. The drying apparatus according to claim 57, wherein the second heat generation source includes a plurality of layers provided at intervals in an axial direction, at least one positioning groove is provided on an outer peripheral surface of at least one of the branch blades, and at least one of the plurality of layers of the second heat generation source is positioned in the positioning groove.

60. The drying apparatus of claim 53, further comprising a mounting seat, at least a portion of the second heat generating source being disposed in the mounting seat, the mounting seat being mounted in the air duct and having a shape that matches a shape of the air duct, the mounting seat being connected to at least one of the motor, the first heat generating source, and the housing.

61. The drying apparatus according to claim 60, wherein the mount has a mounting space in which the bracket and the second heat generation source are mounted.

62. The drying apparatus of claim 61, wherein the mounting seat includes a bottom wall and a peripheral wall, an axial end of the peripheral wall connecting the bottom wall to form the mounting space between the peripheral wall and the bottom wall.

63. The drying apparatus according to claim 62, wherein the bottom wall is adjacent to an inner wall of the casing, and the peripheral wall is provided with an air vent through which an air flow enters the second heat generating source.

64. The drying apparatus of claim 63, wherein said housing is provided with said airflow inlet configured as a ring shape fitting with said vent hole.

65. The drying apparatus of claim 62, wherein said mounting base includes a mounting wall, said peripheral wall being connected to said mounting wall, said mounting wall being connected to said housing.

66. The drying apparatus according to claim 65, wherein the other axial end of said peripheral wall is connected to an inside of said mounting wall, and an outer peripheral surface of said mounting wall is fitted to said housing.

67. The drying apparatus of claim 63, wherein the peripheral wall is cylindrical or the mounting base is cylindrical, and the ventilation holes are uniformly distributed on the surface of the cylindrical structure.

68. The drying apparatus according to claim 67, wherein the second heat generation source is cylindrical or circular in cross section, and is disposed coaxially with the peripheral wall.

69. The drying apparatus of claim 61, wherein the second heat generating source includes a heating wire, and the bracket and the heating wire are fixed to the mounting base by a mounting cover.

70. The drying apparatus of claim 67, wherein said mounting cover fits into said mounting space of said mounting base, and said mounting cover is removably attached to said mounting base.

71. The drying apparatus of claim 68, wherein the mounting cover has a retaining hole therein, and a portion of the bracket is removably mounted in the retaining hole.

72. Drying apparatus according to claim 60 in which a shock absorbing bumper is provided between the motor and the mounting.

73. The drying apparatus according to claim 57, wherein the drying apparatus includes a protection structure, the second heat source is enclosed to form an accommodating space, and the protection structure is installed in the accommodating space.

74. The drying apparatus of claim 73, wherein said protective structure is plural and is mounted to a plurality of lobes of said frame, respectively.

75. The drying apparatus of claim 74, wherein said protective structure is located in a central portion of a junction of said plurality of leaves.

76. The drying apparatus of claim 74, wherein the protection structure comprises a temperature control structure configured to maintain a path at ambient temperature and to deform to break when the temperature reaches a first temperature threshold, the temperature control structure being located substantially centrally within the receiving space.

77. The drying apparatus according to claim 73, comprising a controller electrically connecting the protection structure and the second heat generating source, the protection structure being configured to obtain a temperature parameter, the controller being configured to control the second heat generating source according to the temperature parameter.

78. The drying apparatus of claim 77, wherein the protective structure includes at least one of a thermistor, a thermostat, and a thermal fuse.

79. Drying apparatus according to claim 1, wherein the heat generating source upstream of the air duct is a second heat generating source, the second heat generating source being a radiation source.

80. The drying apparatus of claim 79, wherein the heat generating source downstream of the air duct is a first heat generating source that is a non-radiation source.

81. The drying apparatus of claim 80, wherein said first heat generating source is disposed outside of an optical path of said radiation source.

82. The drying apparatus of claim 79, wherein the heat generating source downstream of the air duct is a first heat generating source, the first heat generating source being a radiation source.

83. The drying apparatus of claim 82, wherein the first heat generating source and the second heat generating source are oriented the same and both form one or more spots outside the housing.

84. The drying apparatus of claim 82, wherein the first heat-generating source and the second heat-generating source are oppositely oriented.

85. The drying apparatus of claim 82, wherein the orientation of the first heat generating source and the orientation of the second heat generating source have an angle therebetween that is not zero.