Drying apparatus

Abstract

A drying apparatus includes a housing, a motor, and a radiation source and a heat dissipation structure, the housing has an air duct therein, the motor is located in the housing and is configured to generate an airflow in the air duct, the radiation source is housed in the housing and is configured to generate infrared radiation and direct the infrared radiation out of the housing, the radiation source transfers heat through the heat dissipation structure, the heat dissipation structure is disposed between the radiation source and other components of the drying apparatus, the radiation source is a plurality of radiation sources, and the plurality of radiation sources are configured such that the infrared radiation generated by the plurality of radiation sources forms at least one spot at a distance from an airflow outlet of the air duct; the radiation source includes a first part and a second part, the first part is located outside the air duct, and the second part is connected to the first part and exchanges heat with the air duct. The above-mentioned drying apparatus can emit infrared energy to provide stable and consistent heat, can improve drying efficiency, and can reduce damage to objects.

Description

[0001] Priority information

[0002] This application claims priority and benefit to the following patent applications filed with the China National Intellectual Property Administration on May 7, 2021, with patent application number PCT / CN2021 / 092191, PCT / CN2021 / 092185, PCT / CN2021 / 092188, and PCT / CN2021 / 082835 filed with the China National Intellectual Property Administration on March 24, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of drying technology, and in particular to a drying device. Background Technology

[0004] Traditional hair dryers mainly consist of a motor, heating wire (such as a resistance wire), and air duct. The heating wire heats up when energized, heating the air drawn into the motor within the air duct, which is then blown out onto the user's hair. However, the air reaching the hair surface is very hot, easily baking the hair and causing damage with prolonged use. Summary of the Invention

[0005] The embodiments of this application provide a drying apparatus.

[0006] A drying apparatus according to an embodiment of this application includes:

[0007] A housing, wherein an air duct is provided inside the housing;

[0008] An electric motor, located within the housing, is used to generate airflow in the air duct;

[0009] A radiation source, housed within the housing, is used to generate infrared radiation and direct the infrared radiation to the outside of the housing;

[0010] A heat dissipation structure is provided, through which the radiation source transfers heat, and the heat dissipation structure is disposed between the radiation source and other components of the drying equipment;

[0011] in,

[0012] The radiation sources are multiple, and the multiple radiation sources are configured such that the infrared radiation generated by the multiple radiation sources forms at least one light spot at a certain distance from the airflow outlet of the air duct; the radiation sources include:

[0013] The first part is located outside the air duct;

[0014] The second part connects to the first part and exchanges heat with the air duct.

[0015] In the aforementioned drying equipment, infrared (IR) radiation is used as a heat source to remove water and moisture from objects (such as hair). The radiation source emits infrared energy to provide stable and consistent heat, improving heat transfer efficiency, increasing drying speed, and reducing damage to objects. The air duct also dissipates heat from a second part of the radiation source, preventing it from overheating and affecting radiation efficiency. The first part, located outside the air duct, allows the radiation source to operate at a suitable temperature. Furthermore, the infrared radiation from each source can be used to dry the target object, enabling multiple sources to provide appropriate radiation levels while avoiding the problem of a single source overheating. Additionally, the heat dissipation structure allows the heat generated by the radiation source during operation to be transferred to other components of the drying equipment, ensuring the radiation source operates at a suitable temperature and extending its lifespan.

[0016] Additional aspects and advantages of this 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 this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the drying equipment according to an embodiment of this application;

[0019] Figure 2 This is a partial structural schematic diagram of the drying equipment according to an embodiment of this application;

[0020] Figure 3 A-3D is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0021] Figure 4 This is another structural schematic diagram of the drying equipment according to an embodiment of this application;

[0022] Figure 5 A-5D is another schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of another part of the structure of the drying equipment according to the embodiments of this application;

[0024] Figure 7 A-7D is another schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application.

[0025] Figure 8 This is a partial structural schematic diagram of the drying equipment according to an embodiment of this application;

[0026] Figure 9 A-9D is another schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0027] Figure 10 This is a partial structural schematic diagram of the drying equipment according to an embodiment of this application;

[0028] Figure 11 A-11D is another schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0029] Figure 12 This is a partial structural schematic diagram of the drying equipment according to an embodiment of this application;

[0030] Figure 13 A-13B is another schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0031] Figure 14 This is a partial structural schematic diagram of the drying equipment according to an embodiment of this application;

[0032] Figure 15 This is a partial three-dimensional schematic diagram of the drying equipment according to an embodiment of this application;

[0033] Figure 16 This is a three-dimensional schematic diagram of the radiation source of the drying equipment according to the embodiments of this application;

[0034] Figure 17 A-17B is a schematic diagram showing the relationship between the radiation source and the optical element in an embodiment of this application;

[0035] Figure 18 This is a partial cross-sectional schematic diagram of the drying equipment according to an embodiment of this application;

[0036] Figure 19 A- Figure 42 D is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0037] Figure 43 This is another structural schematic diagram of the drying equipment according to an embodiment of this application;

[0038] Figure 44 This is a cross-sectional schematic diagram of the drying equipment according to an embodiment of this application;

[0039] Figure 45 This is a schematic diagram of the structure of the light-emitting element of the drying equipment according to an embodiment of this application;

[0040] Figure 46This is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0041] Figure 47 This is a cross-sectional schematic diagram of the radiation source and air duct of the drying equipment according to an embodiment of this application;

[0042] Figure 48 This is a comparative schematic diagram of the parameters of the radiation source of the drying equipment according to the embodiments of this application;

[0043] Figure 49 This is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0044] Figure 50 This is a cross-sectional schematic diagram of the radiation source and air duct of the drying equipment according to an embodiment of this application;

[0045] Figure 51 This is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0046] Figure 52 This is a cross-sectional schematic diagram of the radiation source and air duct of the drying equipment according to an embodiment of this application;

[0047] Figure 53 This is a schematic diagram showing the relationship between the radiation source and the air duct of the drying equipment according to an embodiment of this application;

[0048] Figure 54 This is a cross-sectional schematic diagram of the radiation source and air duct of the drying equipment according to an embodiment of this application;

[0049] Figure 55 This is a cross-sectional schematic diagram of the radiation source of the drying equipment according to an embodiment of this application;

[0050] Figure 56 This is another cross-sectional schematic diagram of the radiation source of the drying equipment according to the embodiments of this application;

[0051] Figure 57 This is another cross-sectional schematic diagram of the radiation source of the drying equipment according to the embodiments of this application. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0053] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] This disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0057] This application provides a drying device. The drying device utilizes an infrared (IR) radiation source as a heat energy source to remove water and moisture from objects (e.g., hair, fabrics). The infrared radiation source emits infrared energy with a preset wavelength range and power density to heat the object. The heat carried by the infrared energy is directly transferred to the object via radiative heat transfer, resulting in improved heat transfer efficiency compared to conventional convective heat transfer (e.g., virtually no heat is absorbed by the surrounding air via radiative heat transfer, whereas in conventional heat conduction, a large portion of the heat is absorbed and carried away by the surrounding air). The infrared radiation source can be used in conjunction with a motor, and the airflow generated by the motor further accelerates the evaporation of water from the object.

[0058] Another advantage of using infrared radiation as a heat energy source is that infrared heat can penetrate the hair shaft down to the cuticle, thus drying the hair faster and leaving it soft and supple. Infrared energy is also believed to be beneficial to scalp health and stimulate hair growth by increasing blood flow to the scalp. The use of infrared radiation sources also allows for more compact and lightweight drying devices. The improved heat transfer and energy efficiency of infrared radiation sources can also extend the runtime of wireless drying devices powered by embedded batteries.

[0059] Please refer to Figure 1 The drying device 100 provided in this application embodiment may include a housing 10, a motor 20, and a radiation source 30. An air duct 40 is provided inside the housing 10. The housing 10 can accommodate various electrical, mechanical, and electromechanical components, such as the motor 20, the radiation source 30, a control board (not shown), and a power adapter (not shown).

[0060] The housing 10 may include a body 102 and a handle 104, each of which may house at least a portion of electrical, mechanical, and electromechanical components. In some embodiments, the body 102 and handle 104 may be integrally connected. In some embodiments, the body 102 and handle 104 may be separate components. For example, the handle 104 may be detachable from the body 102. In one example, the detachable handle 104 may house a power source (such as one or more batteries) for powering the drying device 100. The housing 10 may be made of an electrically insulating material. Examples of electrically insulating materials may include polyvinyl chloride (PVC), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene copolymer (ABS), polyester, polyolefin, polystyrene, polyurethane, thermoplastic, silicone, glass, fiberglass, resin, rubber, ceramic, nylon, and wood. The housing 10 may also be made of a metallic material coated with an electrically insulating material, or a combination of an electrically insulating material and a metallic material coated or uncoated with an electrically insulating material. For example, an electrically insulating material can form the inner layer of the housing 10, while a metallic material can form the outer layer. In one example, the handle 104 is also provided with an input component 106, which can be used by the user to operate the drying equipment, such as turning the drying equipment on and off, adjusting the motor speed, and adjusting the power of the radiation source. The input component 106 may include at least one of physical buttons, virtual buttons, and a touch screen. In other embodiments, the drying equipment may omit the input component and can be controlled by a terminal communicating with the drying equipment. The terminal may include, but is not limited to, mobile phones, tablets, wearable smart devices, and personal computers.

[0061] The motor 20 may be located within the housing and is used to generate airflow in the duct. One or more ducts 40 may be provided inside the housing 10, and the ducts 40 may be fixed within the housing 10 to ensure stable airflow generated by the motor 20, avoiding unwanted airflow disturbances. The airflow generated by the motor 20 can be guided or regulated through the duct and directed toward the user's hair. For example, the duct 40 may be shaped to at least regulate the velocity, throughput, divergence angle, or eddy intensity of the airflow leaving the drying device 100. The duct 40 may include an airflow inlet 402 and an airflow outlet 404. In one example, the airflow inlet 402 and the airflow outlet 404 may be located at opposite ends of the drying device 100 along a lateral direction (such as the length direction of the body 102). The airflow inlet 402 and the airflow outlet 404 may each be a vent that allows airflow to pass through. The airflow inlet 402 may also be located on the handle 104, and the airflow inlet 402 may also be located on both the handle 104 and the body 102. Ambient air can be drawn into the air duct 40 through the air inlet 402 to generate airflow, and the generated airflow can leave the air duct 40 through the air outlet 404. The motor 20 can be located in the air duct 40 of the main body 102 or in the air duct 40 of the handle 104, and no specific limitation is made here.

[0062] The cross-sectional shape of the air outlet 404 can be any shape, including circular, elliptical, rectangular, square, or various variations of circular and quadrilateral shapes, such as quadrilaterals with rounded corners. No specific limitation is made here.

[0063] In one example, the main body 102 has an air duct 40, which is basically cylindrical. It is understood that in other embodiments, the air duct 40 may also be in other shapes, such as funnel shape, Y shape, and various regular or irregular shapes, which are not specifically limited here.

[0064] In one embodiment, one or more air filters (not shown) may be provided at the airflow inlet 402 to prevent dust or hair from entering the air duct 40. For example, the air filter may be a mesh with appropriate dimensions. The air filter may be removable or replaceable for easy cleaning and maintenance.

[0065] In one embodiment, an airflow regulator (not shown) may be provided at the airflow outlet 404. The airflow regulator may be a detachable nozzle, comb, or curler. The airflow regulator may be configured to adjust the velocity, flow rate, divergence angle, or vortex intensity of the airflow exiting the airflow outlet 404. For example, the airflow regulator may be configured to converge (e.g., concentrate) the airflow at a predetermined distance in front of the airflow outlet 404. For example, the airflow regulator may be configured to diverge the airflow exiting the airflow outlet 404.

[0066] In one embodiment, the housing 10 may not contain any additional heating device; that is, the housing 10 does not contain any additional heating device. On the one hand, the housing 10 contains a radiation source 30 for generating infrared radiation, which avoids interference from additional heating devices during the adjustment process. This allows for convenient adjustment of the radiation power of the radiation source 30 to achieve the desired drying effect. On the other hand, the absence of additional heating devices facilitates the miniaturization of the drying device 100, thereby improving its portability. The lack of additional heating devices also results in lower energy consumption for the drying device 100, thus extending its battery life when powered by a battery. Optionally, the heating device includes a heating wire, such as a resistance wire. In other words, the housing 10 does not contain any additional heating wire; the object is heated solely by the infrared energy generated by the radiation source 30.

[0067] In one embodiment, the motor 20 is located within the housing 10 and is used to generate airflow in the duct 40. In one example, the motor 20 may be disposed within the duct 40 of the body 102 and near the airflow inlet 402. The motor 20 may include a drive unit 202 and an impeller 204. The impeller 204 may include multiple blades. When the impeller 204 is driven by the drive unit 202, the rotation of the impeller 204 can draw ambient air into the duct 40 through the airflow inlet 402 to generate airflow, and push the generated airflow through the duct 40 and discharge the airflow from the airflow outlet 404. The drive unit 202 may be supported by a bracket or housed in a protective cover. The motor 20 may include a brushless motor 20, and the rotational speed of the impeller 204 can be adjusted under the control of a controller (not shown). For example, the rotational speed of the impeller 204 can be controlled by a preset program, user input, or sensor data. In some embodiments, the size of the drive unit 202 can be between 14 mm and 21 mm in any direction, thereby reducing the space occupied by the drive unit 202, facilitating spatial layout, and enabling miniaturization of the drying equipment 100. The power output of the motor 20 can be between 35 and 80 watts (W). The maximum velocity of the airflow exiting the airflow outlet 404 can be at least 8 m / s.

[0068] exist Figure 1 and Figure 2 The diagram shows a motor 20 housed within the body 102. It can be understood that in other embodiments, the motor 20 may also be housed within the handle 104. For example, rotation of the impeller 204 may draw air into an airflow inlet 402 located at the handle 104 and propel the air through a duct 40 to an airflow outlet 404 located at one end of the body 102. The duct 40 may correspondingly extend through the handle 104 and the body 102 of the housing 10.

[0069] In one embodiment, the fan blades of motor 20 pass through a frequency close to the frequency range of ultrasound. The fan blade passing frequency can be expressed as the product of the motor speed and the number of fan blades in motor 20. The fan blade passing frequency of motor 20 being close to the frequency range of ultrasound can be understood as the fan blade passing frequency being within the frequency range of ultrasound, or the fan blade passing frequency being the upper or lower limit of the frequency range of ultrasound, or the difference between the fan blade passing frequency and the upper or lower limit of the frequency range of ultrasound being less than a preset value. In one example, the speed of motor 20 is measured in revolutions per second (rps), and the fan blade passing frequency is greater than or equal to 15 kHz. In the aforementioned drying device 100, motor 20 can provide appropriate airflow to properly dissipate heat from the radiation source. In one embodiment, the number of fan blades in motor 20 is a prime number of 5 or more.

[0070] In one embodiment, the speed of motor 20 is greater than or equal to 50,000 rpm. That is, the motor speed is at least 50,000 revolutions per minute. In this way, by using the high-speed motor 20 (the speed of motor 20 is greater than or equal to 50,000 rpm), sufficient air volume is generated, which can not only increase the drying speed, but also properly dissipate heat from the radiation source 30, so that the temperature of the radiation source 30 is maintained at a suitable operating temperature.

[0071] In related technologies, due to the use of low-speed motors, in order to effectively dissipate heat from a single high-power radiation source, the radiation source is usually placed directly in the air duct. For example, the entire outer wall of the reflector cup of the radiation source (i.e., the entire windward surface) is directly blown by the airflow of the air duct to carry away the heat from the radiation source. However, this type of drying equipment has obvious disadvantages: 1) The length of the main body along the axial direction (e.g., horizontal direction) of the air duct is relatively long (large in size) because a) the reflector cup of the radiation source is generally parabolic and relatively long; b) the airflow outlet temperature near the radiation source is extremely high, requiring the installation of isolation devices to prevent burns and avoid safety accidents. 2) The shape of the radiation source (e.g., the shape of the outer wall of the reflector cup) within the air duct 40 will affect the airflow, such as generating wind resistance, wind noise, and changing the direction of airflow, ultimately losing the energy of the wind.

[0072] In this embodiment, the object radiates radiation in the infrared to visible wavelength range in the form of heat transfer. This heat transfer is called blackbody radiation. Blackbody radiation is broadband radiation. The center wavelength and spectral bandwidth decrease with increasing temperature. The total energy is related to S×T. 4The values ​​are proportional, where S represents the surface area and T represents the temperature. Given the operating temperature required for blackbody radiation from the radiation source 30 and the airflow of the high-speed motor 20 (measured in Cubic per Minute / CPM), the heat dissipation efficiency can be derived, and thus the required heat dissipation area for the radiation source 30 can be derived. This heat dissipation area is smaller than that of the prior art where the entire radiation source 30 is placed in the air duct 40. Therefore, in this embodiment, a portion of the radiation source 30 can be located outside the air duct 40 and is not directly blown by the airflow of the air duct 40. This also allows the radiation source 30 to be maintained at a suitable operating temperature even when using a high-power single radiation source 30. At the same time, since a portion of the radiation source 30 is located outside the air duct 40, the radiation source 30 can be structurally offset along the radial direction (e.g., vertical direction) of the air duct 40, reducing the length of the body 102 and reducing the adverse effects of the shape of the radiation source 30 on airflow.

[0073] In one embodiment, the motor 20 can be fixed inside the housing 10 by a shock-absorbing device (not shown). In this way, the vibration generated by the motor 20 during operation can be reduced by the shock-absorbing device, reducing or preventing the vibration generated by the motor 20 from being transmitted to the housing 10, avoiding inconvenience to the user, and improving the user experience.

[0074] Specifically, the shock absorption device may include an elastic element, which can absorb the vibration generated when the motor 20 is running, thereby reducing or avoiding the transmission of vibration.

[0075] In one embodiment, the shock absorber is fixedly connected to the radiation source 30. Thus, the radiation source 30 is fixed inside the housing 10, and the resulting vibration transmission path is further: motor 20 -> shock absorber -> radiation source 30 -> housing 10. This extends the transmission path of the vibration generated by the motor 20, facilitating vibration attenuation and further reducing or eliminating vibration transmitted to the housing 10, thereby improving the user experience.

[0076] In one embodiment, the vibration damping device includes a sleeve formed of an elastic material, the sleeve including a snap-fit ​​portion extending around the sleeve and flexibly coupled to at least one of the housing 10, the air duct 40, and the radiation source 30. Flexible coupling can be understood as a flexible connection, meaning that the two are interconnected, and their relative positions can change to a certain extent. Thus, the snap-fit ​​portion of the flexible coupling can effectively absorb vibrations, reducing or preventing vibration transmission.

[0077] Specifically, the sleeve can be fitted over the drive unit 202 of the motor 20, and the locking part can be provided on the outer surface of the sleeve. Multiple locking parts (two or more) can be formed, and the locking parts can be evenly spaced along the circumference of the sleeve to uniformly absorb vibration and reduce vibration transmission. Alternatively, the locking part can be a single part, which can be arranged in a ring on the outer surface of the sleeve.

[0078] It is understood that the snap-fit ​​part is flexibly coupled to at least one of the housing 10, the air duct 40, and the radiation source 30. This can be: the snap-fit ​​part is flexibly coupled to the housing 10; the snap-fit ​​part is flexibly coupled to the air duct 40; the snap-fit ​​part is flexibly coupled to the radiation source 30; the snap-fit ​​part is flexibly coupled to both the housing 10 and the air duct 40; the snap-fit ​​part is flexibly coupled to both the air duct 40 and the radiation source 30; the snap-fit ​​part is flexibly coupled to both the housing 10 and the radiation source 30; or the snap-fit ​​part is flexibly coupled to all three of them. The snap-fit ​​part can be flexibly configured according to actual needs, taking into account factors such as spatial layout and cost, and will not be elaborated further here.

[0079] In one embodiment, the snap-fit ​​portion is a protrusion formed of rubber material. This protrusion facilitates flexible coupling, is easy to mold, provides better shock absorption, and helps control costs.

[0080] In one embodiment, the radiation source 30 is housed within the housing 10 and is used to generate infrared radiation and direct the infrared radiation to the outside of the housing 10. The radiation source 30 may include a first part and a second part, wherein the first part is located outside the air duct 40, and the second part is connected to the first part and exchanges heat with the air duct 40.

[0081] In one embodiment, the second part is located downstream of the motor 20 along the direction of airflow. This allows the heat exchange between the second part and the duct 40 to be enhanced using the airflow driven by the motor.

[0082] Specifically, please refer to Figure 1 The radiation source 30 is located on the left side of the drying equipment 100, and the motor 20 is located on the right side of the drying equipment 100. When the motor 20 is working, it draws in air from the external environment on the right side of the drying equipment 100 and outputs a faster airflow from the left side of the motor 20. The airflow flows to the radiation source 30 and exchanges heat with the second part. The faster airflow can improve the heat exchange efficiency between the second part and the air duct 40.

[0083] exist Figure 1In the example, the first part of the radiation source 30 is located outside the air duct 40. This first part is not blown by the airflow of the air duct 40, so the amount of heat exchange between the first part and the air duct 40 is small. The second part can exchange heat with the air duct 40. The radiation source 30 can generate a certain amount of heat when it is working. The heat exchange between the second part and the air duct 40 can remove some of the heat from the radiation source 30, so as to properly dissipate heat from the radiation source 30 and avoid the continuous accumulation of heat in the radiation source 30. This can keep the radiation source 30 at a suitable temperature when it is working, which can improve the evaporation efficiency of water on the object and thus accelerate the drying speed.

[0084] Preferably, the surface area of ​​the first part is larger than that of the second part. This allows for proper heat dissipation from the radiation source 30 and maintains a suitable operating temperature. Specifically, the second part exchanges heat with the air duct 40, and the heat exchange can include at least one of heat conduction and heat convection. By simply setting the surface area, most of the heat from the radiation source 30 can be used to maintain its operating temperature, while excess heat is dissipated through heat exchange between the second part and the air duct 40.

[0085] The number of radiation sources 30 can be single, or multiple (two or more). When there are multiple radiation sources 30, they are configured to form a light spot at a certain distance outside the opening side of the radiation source 30. In other words, the multiple radiation sources 30 can be housed in the housing 10 and used to generate infrared radiation and guide the generated infrared radiation to the outside of the housing 10. The multiple radiation sources 30 are configured to form at least one light spot at a certain distance from the airflow outlet of the air duct 40, that is, the multiple radiation sources can form one or more light spots at a certain distance outside the opening side of the radiation source 30. In this way, the infrared radiation intensity in the light spot area is high, which can effectively dry the object. It is understood that a single radiation source 30 can also be configured to form a light spot at a certain distance outside the opening side of the radiation source 30.

[0086] Specifically, by adjusting the opening direction of the radiation sources 30, multiple radiation sources 30 can form a light spot at a certain distance from the outside of the drying equipment 100. The light spot can be a circular light spot, and the diameter of the circular light spot can be 10 cm. In one example, the certain distance can be 10 cm.

[0087] In one embodiment, the radiation source and the air duct are fixed inside the housing, that is, the radiation source and the air duct are housed inside the housing and fixed relative to the housing, so that the housing can support and protect the radiation source and the air duct.

[0088] In one embodiment, during operation, the radiation source 30 is located between the air duct 40 and the housing 10. This allows for a configuration of the drying equipment 100, such as... Figure 1 As shown.

[0089] Specifically, during operation, it can be understood that at least one of the radiation source 30 and the motor 20 is turned on, including the radiation source 30 being turned on while the motor 20 is turned off, the radiation source 30 being turned off while the motor 20 is turned on, and the radiation source 30 being turned on while the motor 20 is turned on.

[0090] In one embodiment, the radiation source 30 can be fixed inside the housing 10. That is, the radiation source 30 is fixed inside the housing 10 regardless of whether the drying equipment 100 is working or not. Thus, the housing can support and accommodate the radiation source 30, providing a certain degree of protection for the radiation source 30.

[0091] Furthermore, the radiation source 30 is not located within the air duct 40. In one embodiment, the radiation source 30 is movably disposed within the housing 10, for example, by adding a movable structure to adjust the position of the radiation source 30, so that when the drying equipment 100 is operating, the radiation source 30 is driven to a position between the air duct 40 and the housing 10, and when the drying equipment 100 is not operating, the radiation source 30 is moved to another position, for example, to the air duct 40, or to another convenient location within the housing 10 for storage. In one embodiment, the position of the air duct 40 can be adjusted by a movable structure, or the positions of the air duct 40 and the radiation source 30 can be adjusted by a movable structure. No specific limitations are made here.

[0092] In one embodiment, all radiation sources 30 are located outside the air duct 40. The number of radiation sources 30 may be multiple, and the fact that all radiation sources 30 are located outside the air duct 40 reduces airflow resistance generated by the air duct 40 during operation, which helps to reduce wind noise and wind resistance.

[0093] Specifically, since there is no radiation source 30 in the air duct 40, it has minimal impact on wind speed and air volume, and does not generate additional wind noise. Wind speed and air volume have a significant impact on drying speed. In particular, when the drying device 100 is used for drying hair, the low noise level improves the user experience because the drying device 100 is close to the ear during the drying process.

[0094] In one embodiment, the radiation source 30 can be positioned circumferentially around the airflow outlet 404 of the air duct 40. In this way, on the one hand, as the airflow exits from the airflow outlet 404, some of the heat from the radiation source 30 is carried away by the wind, raising the wind temperature by a few degrees (1-5 degrees). While this is insufficient to decisively affect the object being dried (such as hair), it improves the perceived temperature of the airflow, preventing a feeling of being blown by cold air and enhancing the user experience. On the other hand, this ensures that the infrared radiation emitted by the radiation source 30 is largely unobstructed by the air duct 40, which is beneficial for improving drying efficiency.

[0095] In one embodiment, the radiation source 30 is arranged around the airflow outlet 404 of the duct 40. Figure 2 , Figure 3 In the A-3D example, the radiation source 30 has a circular or approximately circular shape along the plane perpendicular to the axis of the air duct 40. Figure 3 In example A, there are two radiation sources 30, arranged 180 degrees apart around the airflow outlet 404 of the duct 40. Figure 3 In example B, there are three radiation sources 30, arranged at 120-degree intervals around the airflow outlet 404 of the duct 40. Figure 3 In example C, there are four radiation sources 30, arranged at 90-degree intervals around the airflow outlet 404 of the duct 40. Figure 3 In example D, the number of radiation sources 30 is five, arranged at 72-degree intervals around the airflow outlet 404 of the air duct 40. It is understood that the number of radiation sources 30 can also be more than five, evenly spaced around the airflow outlet 404 along the circumference of the air duct 40. Furthermore, in other embodiments, the angle between adjacent radiation sources 30 can be different. No specific limitation is made here. Figure 4 , Figure 5 In the A-5D example, the radiation source 30 has a circular or fan-shaped shape along the plane perpendicular to the axial direction of the air duct 40. Figure 5 In example A, the number of radiation sources 30 is single, and the single radiation source 30 is arranged in a ring shape, circumferentially around the airflow outlet 404 of the air duct 40 in a 360-degree radius. Figure 5 In example B, there are two radiation sources 30, each roughly fan-shaped (180 degrees apart). Each radiation source 30 is arranged approximately 180 degrees around the airflow outlet 404 of the air duct 40, forming a roughly circular arrangement. Figure 5In example C, there are three radiation sources 30, each roughly fan-shaped at 120 degrees. Each radiation source 30 is arranged approximately 120 degrees around the airflow outlet 404 of the air duct 40, forming a roughly circular arrangement. Figure 5 In example D, there are four radiation sources 30, each in a roughly 90-degree fan shape. Each radiation source 30 is arranged approximately 90 degrees around the airflow outlet 404 of the air duct 40, forming a roughly circular arrangement. It is understood that there can be more than four radiation sources 30, evenly spaced around the airflow outlet 404 of the air duct 40. Furthermore, in other embodiments, the fan-shaped curvature of each radiation source 30 can be different. No specific limitation is made here.

[0096] In one embodiment, the radiation source 30 is arranged on one side of the airflow outlet 404 of the air duct 40. Figure 6 , Figure 7 In the A-7D example, the radiation source 30 has a circular or approximately circular shape along the plane perpendicular to the axial direction of the duct 40. Figure 7 In example A, the number of radiation sources 30 is single, and the single radiation source 30 is arranged on the lower half of the airflow outlet 404 of the duct 40. Figure 7 In example B, there are two radiation sources 30, which are arranged on the lower half of the airflow outlet 404 of the duct 40. Figure 7 In example C, there are three radiation sources 30, which are arranged on the lower half of the airflow outlet 404 of the duct 40. Figure 7 In example D, there are four radiation sources 30, arranged on the lower half of the airflow outlet 404 of the duct 40. It is understood that the number of radiation sources 30 can also be five or more, arranged on the lower half of the airflow outlet 404 of the duct 40. Furthermore, in other embodiments, the radiation sources 30 can also be arranged on the upper half, left half, right half, upper left half, lower left half, upper right half, or lower right half; no specific limitation is made here. In other embodiments, the planar shape of the radiation sources 30 perpendicular to the axial direction of the duct 40 can be annular or fan-shaped.

[0097] In other embodiments, any combination of circular radiation sources 30, annular radiation sources 30, and fan-shaped radiation sources 30 may be distributed on one side of the airflow outlet 404 of the air duct 40, or arranged around the airflow outlet 404 of the air duct 40.

[0098] In one embodiment, the radiation source 30 is surrounded by the air duct 40. This allows for another configuration of the drying device 100, such as... Figure 8 As shown.

[0099] Optionally, the radiation source 30 may not be entirely located within the air duct 40. The radiation source 30 can be placed within the air duct 40, with a first portion of the radiation source 30 shielded by a shielding member to prevent it from being blown by the airflow within the air duct 40. For example, the first portion may include a part of the outer wall of the reflector cup 302, which can be shielded to prevent it from being blown by the airflow within the air duct 40. The unshielded portion of the outer wall of the reflector cup 302 can serve as a second portion, allowing the airflow within the air duct 40 to reach the second portion and facilitate heat exchange between the second portion and the air duct 40.

[0100] exist Figure 8 , Figure 9 In the A-9D example, the radiation source 30 has a circular or approximately circular shape along the plane perpendicular to the axial direction of the duct 40. Figure 9 In example A, the number of radiation sources 30 is single, and a single radiation source 30 is positioned within the air duct 40. Figure 9 In example B, there are two radiation sources 30, which are radially distributed along the air duct 40. Figure 9 In example C, there are three radiation sources 30, which are arranged in a triangular shape within the air duct 40. Figure 9 In example D, there are four radiation sources 30, which are arranged in a square pattern within the air duct 40. It is understood that there could be more than four radiation sources 30, also arranged in the air duct 40. No specific limitation is made here.

[0101] exist Figure 10 , Figure 11 In the example of A-11D, the radiation source 30 has a circular or fan-shaped shape along the plane perpendicular to the axial direction of the duct 40. Figure 11 In example A, there are two radiation sources 30, each in a ring shape. The two radiation sources 30 are concentrically positioned within the air duct 40, forming two layers of ring-shaped radiation sources 30. Figure 11 In example B, there are two radiation sources 30, each roughly forming a 180-degree fan shape, and the two radiation sources 30 are arranged in a roughly circular pattern. Figure 11 In example C, there are three radiation sources 30, each roughly forming a 120-degree sector, and the three radiation sources 30 are arranged in a roughly circular pattern. Figure 11In example D, there are four radiation sources 30, each in a roughly 90-degree fan shape, arranged in a roughly circular pattern. It is understood that the number of radiation sources 30 can also be single or more than four, dispersed throughout the air duct 40. Furthermore, in other embodiments, the fan-shaped curvature of each of the multiple radiation sources 30 can be different. No specific limitations are made here.

[0102] In other embodiments, any combination of circular radiation sources 30, annular radiation sources 30, and fan-shaped radiation sources 30 can be distributed in the air duct 40.

[0103] In one embodiment, there are multiple radiation sources 30, which are distributed in the air duct 40.

[0104] In this way, the multiple radiation sources 30 distributed in the air duct 40 can avoid the phenomenon of local overheating of the radiation source 30 or the air duct 40 due to excessive heat concentration.

[0105] Specifically, please refer to Figure 12 and Figure 13 A. A duct 40 is provided with an airflow outlet 404, and multiple radiation sources 30 are distributed in a star-shaped manner in the airflow outlet 404 of the duct 40.

[0106] In one embodiment, the air duct 40 is provided with multiple airflow outlets 404, and the radiation source 30 is arranged between adjacent airflow outlets 404, such as... Figure 13 As shown in B.

[0107] Specifically, a single air duct 40 may have multiple airflow outlets 404, and the multiple radiation sources 30 may be arranged in a star-like pattern within the air duct 40. Alternatively, there may be multiple air ducts 40, each with one airflow outlet 404. The multiple airflow outlets 404 may be arranged in a star-like pattern within the gaps between the multiple radiation sources 30. A combination of both arrangements is also possible, and no specific limitation is made here.

[0108] In one implementation, please refer to Figure 8 , Figure 10 and Figure 12 The drying equipment 100 also includes an isolation element 50, which is disposed within the air duct 40. In this way, the isolation element 50 can be used to shield a portion of the radiation source 30. The shielded portion of the radiation source 30 is not blown by the airflow within the air duct 40, and this portion can be considered as the first part, which can be regarded as being located outside the air duct 40.

[0109] Specifically, the isolator 50 can accommodate the radiation source 30. In one example, the portion of the blocked radiation source 30 can be at least one of the outer wall of the reflector 302 and the base 310 of the reflector 302. The outer wall of the isolator 50 can be configured as an air guide, for example, the outer wall of the isolator 50 can be streamlined to reduce wind noise and wind resistance. Furthermore, a heat sink (not shown) is provided on the outer wall of the isolator 50. This can accelerate heat dissipation efficiency. Specifically, the heat sink can include one or any combination of heat dissipation fins, heat dissipation ducts, heat pipes, and heat sinks.

[0110] In one embodiment, the isolator 50 is disposed at the airflow outlet 404 of the air duct 40. Thus, the isolator 50 disposed at the airflow outlet 404 has a smaller adverse effect on the airflow within the air duct 40.

[0111] In one embodiment, the isolation element 50 is coupled to at least one of the radiation source 30, the housing 10, and the air duct 40.

[0112] Specifically, the coupling method can be a detachable connection or a fixed connection.

[0113] In one embodiment, the airflow flows within a channel formed by the inner wall of the duct 40 and the outer wall of the separator 50. In this way, the airflow can exit the drying equipment 100 through the channel and carry away heat from the separator 50.

[0114] Specifically, the isolator 50 may absorb heat generated by the radiation source 30 during operation and thus heat up. Airflow through the channel dissipates heat from the isolator 50, ensuring its service life.

[0115] In one embodiment, a portion of the radiation source 30 is housed within the insulating member 50. Thus, the insulating member 50 can shield a portion of the radiation source 30 from being blown away by the airflow within the air duct 40, thereby helping to maintain the radiation source 30 at a certain operating temperature.

[0116] Specifically, the radiation source 30 may include a reflector cup 302. A portion of the outer wall of the reflector cup 302 may be housed within the insulating member 50. This portion may serve as the first part to prevent the radiation source 30 from being directly blown by the airflow of the air duct 40, thereby ensuring that the radiation source 30 is kept at a suitable operating temperature during operation.

[0117] In one embodiment, the radiation source 30 and the isolator 50 are in coplanar contact. This reduces the adverse effects of the connection between the radiation source 30 and the isolator 50 on airflow. Specifically, coplanar contact allows the connection between the radiation source 30 and the isolator 50 to be a smooth transition, enabling airflow to pass smoothly over the connection, reducing wind resistance and wind noise. In one example, the connection can form a streamlined surface.

[0118] In one implementation, please refer to Figure 8 , Figure 10 and Figure 12 The inner wall of the isolator 50 and the outer wall of the radiation source 30 form a cavity 60. The first part includes the outer wall portion of the radiation source 30 that forms the cavity 60. Specifically, the outer wall portion of the radiation source 30 can be a part of the outer wall of the reflector 302, or the reflector 302 base 310, or a part of the base 310, or include a part of the outer wall of the reflector 302 and the reflector 302 base 310, or include a part of the outer wall of the reflector 302 and a part of the reflector 302 base 310. In other words, the outer wall portion of the radiation source 30 that forms the cavity 60 is blocked by the isolator 50, preventing the airflow of the duct 40 from blowing directly through it.

[0119] In one embodiment, via the insulating member 50, the air duct 40 exchanges heat with the radiation source 30 through at least one of heat conduction and heat convection. Thus, the heat from the radiation source 30 can be properly dissipated, preventing the operating temperature from becoming excessively high or low.

[0120] In one embodiment, the drying device 100 further includes a control panel (not shown) located within the housing, the control panel being disposed around the outer wall of the air duct. Further, the control panel is disposed within the isolation member 50. This allows for full utilization of the space within the housing 10, resulting in a compact structure for the drying device 100 and facilitating miniaturization.

[0121] Specifically, the control board can be placed in the cavity 60. The control board may include a circuit board and various components mounted on the circuit board, such as a processor, controller, power supply, switching circuit, detection circuit, etc. The control board can be electrically connected to the radiation source 30 and the motor 20, as well as other electrical components, such as lighting, indicator lights, sensors, etc. The control board is used to control the operation of the drying equipment 100, including but not limited to controlling the operating mode, operating time, motor speed, power of the radiation source 30, etc. of the drying equipment 100.

[0122] In one embodiment, the drying apparatus 100 includes a power source, a portion of which is disposed within an insulating member 50. The power source is electrically connected to at least one of a radiation source 30 and a control panel. Thus, heat from the power source can be dissipated through the insulating member 50, and the power source can supply power to at least one of the radiation source 30 and the control panel.

[0123] Specifically, the power supply may include one or more batteries, which may be rechargeable batteries. The power supply may be a dedicated power supply for the radiation source 30, a dedicated power supply for the control board, or a power supply for both the radiation source 30 and the control board simultaneously. The control board may be connected to a switch, which controls whether the power supply is providing power to the radiation source 30 by turning the switch on and off.

[0124] In one embodiment, the motor 20 is located downstream of at least a portion of the power supply along the direction of airflow. This prevents the airflow generated by the motor from being blocked by the entire power supply, thereby reducing wind resistance and noise.

[0125] Please refer to Figure 1 The power supply 70 may include multiple batteries. The motor 20 may be located downstream of all the batteries, or it may be positioned between the batteries. For example, the lower part of the handle 104 may house the batteries, the middle part the motor 20, and the upper part the batteries; the lower half of the handle may contain the batteries, and the upper half the motor 20. The main body 102 may also contain batteries. In this way, the airflow generated by the motor 20 can pass through at least a portion of the power supply, allowing the portion of the power supply being cooled by the airflow.

[0126] In addition, the power supply 70 is typically heavier than the motor 20, and the motor 20 is located at least partially downstream of the power supply 70, which helps prevent the drying equipment 100 from being top-heavy. Furthermore, it also reduces the airflow resistance generated by the motor 20.

[0127] In one embodiment, the drying equipment 100 includes a safety sensor (not shown) electrically connected to a power supply 70 and a radiation source 30. The safety sensor is used to disconnect the power supply to the power supply 70 when the temperature of the radiation source 30 exceeds a set temperature. This improves the safety of the drying equipment 100.

[0128] Specifically, the temperature of the radiation source 30 during operation may reach several hundred or even thousands of degrees Celsius. If the radiation source 30 experiences an abnormal temperature rise due to malfunction, it may cause burns to the user. Therefore, a safety sensor is installed to disconnect the power supply 70 when the temperature of the radiation source 30 exceeds the set temperature, causing the radiation source 30 to stop operating, lower its temperature, and prevent accidents, thus improving the safety of the drying equipment 100. The specific value of the set temperature can be set according to requirements and is not specifically limited here.

[0129] In one example, the safety sensor may include a temperature controller. The parameters of the temperature controller can be selected based on the set temperature value.

[0130] In one embodiment, the radiation source 30 is positioned along the longitudinal axis L of the air duct 40. This ensures that the airflow provides relatively uniform heat dissipation around the radiation source 30, preventing localized high or low temperatures and helping to maintain the working efficiency of the radiation source 30 and stabilize the intensity of infrared radiation.

[0131] In one example, the number of radiation sources 30 is a single radiation source 30, which is positioned along the longitudinal axis L of the air duct 40. In another example, the number of radiation sources 30 is multiple, with multiple radiation sources 30 arranged circumferentially around the longitudinal axis L of the air duct 40.

[0132] The radiation source 30 may include a reflector 302 and a light-emitting element 304. The light-emitting element 304 is located inside the reflector 302, with a first part comprising a portion of the outer wall of the reflector 302 and a second part comprising another portion of the outer wall of the reflector 302. For example, in Figure 1 In this embodiment, the second part may be a portion of the outer wall of the reflector 302 that directly contacts the outer wall of the air duct 40, and the first part may be another portion of the outer wall of the reflector 302 that is connected to the outer wall of the air duct 40 via the second part. In other embodiments, the second part may include a portion of the base 310 of the reflector 302, which directly contacts the outer wall of the air duct 40. It is understood that in other embodiments, the first part may include the base 310 of the reflector 302, or a portion of the base 310.

[0133] exist Figure 1 , Figure 4 and Figure 6 In the illustrated embodiment, the second portion directly contacts the outer wall of the air duct 40. Specifically, in one example, a portion of the outer wall of the reflector cup 302 directly contacts the outer wall of the air duct 40 for heat exchange. Specifically, a portion of the outer wall of the reflector cup 302 can form part of the outer wall of the air duct 40, directly contacting another portion of the outer wall of the air duct 40; that is, this portion of the outer wall of the reflector cup 302 serves as both part of the outer wall of the reflector cup 302 and part of the outer wall of the air duct 40.

[0134] In some embodiments, a portion of the outer wall of the reflector cup 302 is located outside the outer wall of the air duct 40 and is in direct contact with the outer wall of the air duct 40, thereby achieving heat exchange.

[0135] Or, in Figures 14-16In the illustrated embodiment, the second part contacts the air duct 40 through an additional heat dissipation structure 80 for heat exchange. Specifically, the heat dissipation structure 80 may include heat-dissipating metals (such as aluminum, copper, aluminum alloys, copper alloys, etc.), carbon fiber materials, etc. The specific form of the heat dissipation structure 80 is not limited; for example, it may include one or any combination of heat dissipation fins, heat sinks, heat dissipation air ducts, and heat pipes. The heat dissipation structure 80 can facilitate heat exchange between the air duct 40 and the second part through at least one of heat conduction and heat convection. In the illustrated embodiment, the heat dissipation structure 80 includes a plurality of spaced-apart heat dissipation fins, with an airflow channel formed between adjacent heat dissipation fins, allowing airflow to pass through the airflow channel to carry away heat and improve heat dissipation efficiency.

[0136] In one embodiment, the heat dissipation structure 80 connects the second part and the outer wall of the air duct 40, that is, the heat dissipation structure 80 connects the air duct 40 and the second part. In one example, the second part is a portion of the outer wall of the reflector 302, and the heat dissipation structure 80 connects this portion of the outer wall of the reflector 302 to the outer wall of the air duct 40.

[0137] Alternatively, in one implementation, please combine Figure 14 and Figure 15 A portion of the heat dissipation structure 80 is located within the air duct 40. In one example, the second portion is part of the outer wall of the reflector cup 302, one end of the heat dissipation structure 80 is connected to this portion of the outer wall of the reflector cup 302, and the other end of the heat dissipation structure 80 extends into the air duct 40, where the airflow directly blows onto this end of the heat dissipation structure 80.

[0138] Alternatively, in one embodiment, the heat dissipation structure 80 forms part of the outer wall of the air duct 40. That is, a part of the outer wall of the air duct 40 can form a heat dissipation structure 80 that exchanges heat with a second part (such as a part of the outer wall of the reflector cup 302).

[0139] Alternatively, in one embodiment, the heat dissipation structure 80 forms part of the inner wall of the air duct 40. That is, a part of the inner wall of the air duct 40 can form the heat dissipation structure 80 and exchange heat with a second part (such as part of the outer wall of the reflector cup 302) through a connecting structure passing through the air duct wall.

[0140] In this embodiment, the outer wall and inner wall of the air duct 40 can be two sides of a single component, or one side of each of two components, with the two components connected to form the air duct 40. No specific limitations are imposed here.

[0141] In some embodiments, the second part is integrally formed and connected to the air duct 40. This can improve the heat exchange efficiency between the second part and the air duct 40. Specifically, the radiation source 30 may include a reflector cup 302, and the second part may be part of the outer wall of the reflector cup 302 or part of the base 310 of the reflector cup 302. The reflector cup 302 can be integrally formed and connected to the air duct 40. The integral forming connection can be achieved by injection molding or welding. No specific limitation is made here. The outer wall of the reflector cup 302 and the air duct 40 form a joint at the airflow outlet 404. At the joint, the drawn-in air and the reflector cup 302 exchange heat, and the temperature of the air will be raised by about 1 to 5 degrees before being blown out. Although this is not enough to have a decisive impact on the object being dried (such as dry hair), it improves the feeling of the air blowing on the human body, so that people do not feel cold air blowing on them, thus improving the user experience.

[0142] In one embodiment, a heat dissipation structure may be provided between the air duct and the second part. The heat dissipation structure can facilitate heat exchange between the air duct and the second part through at least one of heat conduction and heat convection. A portion of the heat dissipation structure may be located within the air duct. Furthermore, a portion of the heat dissipation structure 80 located within the air duct 40 may be formed as a first air guide. This reduces the adverse effects of this portion of the heat dissipation structure 80 on airflow, thereby reducing wind noise and wind resistance.

[0143] Specifically, the first air guide can have a streamlined windward surface, allowing airflow to flow smoothly over it. Furthermore, the first air guide is integrally connected to the second air guide within the air duct 40. In this way, the second air guide within the air duct 40 can guide the airflow and also accelerate heat exchange efficiency. The second air guide can be a guide strip and / or a guide groove formed on the inner wall of the air duct 40, and it can also be streamlined. The second air guide allows for airflow rectification and direction adjustment. The integral connection between the first and second air guides within the air duct 40 ensures seamless airflow through both, further reducing wind noise and resistance.

[0144] In one embodiment, the light-emitting element 304 emits radiation containing infrared wavelengths. Thus, the infrared radiation emitted by the light-emitting element 304 can be used to dry objects, resulting in a good drying effect.

[0145] Specifically, infrared radiation can include far-infrared radiation, near-infrared radiation, etc. In one example, the infrared radiation emitted by the light-emitting element 304 can cover the infrared spectrum above 0.7 μm. In one example, the wavelength of the infrared radiation emitted by the light-emitting element 304 is in the range of 0.7 μm to 20 μm.

[0146] In another example, the radiation emitted by the light-emitting element 304 can roughly cover the visible spectrum from 0.4 μm to 0.7 μm and the infrared spectrum above 0.7 μm.

[0147] In one embodiment, the light-emitting element 304 includes at least one of a halogen lamp, ceramic, graphene, and a light-emitting diode.

[0148] Specifically, examples of ceramics may include positive temperature coefficient (PTC) heaters and cermet heaters (MCH). The ceramic light-emitting element 304 includes a metal heating element embedded within the ceramic, such as tungsten embedded within silicon nitride or silicon carbide. The light-emitting element 304 may be provided in the form of a wire (e.g., a filament). The wire may be patterned (e.g., forming a spiral filament) to increase its length and / or surface area. The light-emitting element 304 may also be provided in the form of a rod. In one example, the light-emitting element 304 may be a silicon nitride rod, silicon carbide rod, or carbon fiber rod having a predetermined diameter and length.

[0149] The light-emitting element 304 may be selected from one of halogen lamps, ceramics, graphene, and light-emitting diodes, or the light-emitting element 304 may be selected from two or more of the following: halogen lamps, ceramics, graphene, and light-emitting diodes. No specific limitation is made here.

[0150] To achieve higher infrared emissivity, it is necessary to increase the temperature of the light-emitting element 304. The temperature of the light-emitting element 304 can be at least 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, or 2000 degrees Celsius (°C). In one example, the temperature of the light-emitting element 304 can be between 900 and 1500 degrees Celsius. The center wavelength or wavelength range of the infrared radiation emitted by the light-emitting element 304 can be tunable, for example, at least tunable to 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, or 10.0 μm. The power density of the radiation emitted from the light-emitting element 304 can be adjusted in different operating modes of the drying device 100 (e.g., fast drying mode, hair health mode, etc.), for example, by changing the voltage and / or current supplied to the drying device 100.

[0151] The reflector 302 can be configured to adjust the direction of radiation emitted from the light-emitting element 304. For example, the reflector 302 can be configured to reduce the divergence angle of the reflected radiation beam.

[0152] The reflective surface of the reflector 302 may be coated with a coating material that has high reflectivity for wavelengths or wavelength ranges of radiation emitted by the light-emitting element 304. For example, the coating material may have high reflectivity for wavelengths in both the visible and infrared spectra. Materials with high reflectivity can be highly efficient in reflecting radiant energy. Examples of coating materials may include metallic and dielectric materials. Metallic materials may include, for example, silver and aluminum. Dielectric coatings may have alternating layers of dielectric material, such as magnesium fluoride. The reflectivity of the coated reflective surface can be at least 90% (e.g., 90% of the incident radiation is reflected by the reflective surface of the reflector cup 302), 90.5%, 91%, 91.5%, 92%, 92.5%, 93%, 93.5%, 94%, 94.5%, 95%, 95.5%, 96%, 96.5%, 97%, 97.5%, 98%, 98.5%, 99%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9%, or higher. In some instances, the reflectivity of the coated reflective surface can be approximately 100%, meaning that virtually all radiation emitted by the light-emitting element 304 can be reflected toward the outside of the drying apparatus 100. Therefore, even if the temperature of the light-emitting element 304 is high, the temperature of the reflective surface of the reflector cup 302 will not substantially increase due to the radiation emitted from the light-emitting element 304.

[0153] In one embodiment, the axial cross-section of the reflective surface of the reflector cup 302 is in the shape of a polynomial curve. This allows the reflective surface to have a focal point, facilitating the guidance of infrared radiation and reducing the divergence angle of the reflected radiation beam.

[0154] Specifically, the shape of the polynomial curve can include parabolic, elliptical, hyperbolic, and other shapes. In one example, the axial cross-section of the reflecting surface of the reflector cup 302 is parabolic.

[0155] In one embodiment, the light-emitting element 304 is disposed at the focal point of the reflective surface of the reflector cup 302. In this way, the infrared beam emitted by the light-emitting element 304 can be reflected by the reflective surface and emitted substantially parallel from the opening of the reflector cup 302, thereby improving the directionality of the infrared radiation emitted by the drying equipment 100.

[0156] Specifically, the light-emitting element 304 is located at the focal point of the reflective surface of the reflector cup 302. The infrared radiation beam emitted by the light-emitting element 304 at the focal point is reflected by the reflective surface of the reflector cup 302 and then emitted from the opening of the reflector cup 302 in a basically parallel manner.

[0157] In other embodiments, the light-emitting element 304 may also be positioned off-center from the focal point of the parabola, allowing the reflected infrared radiation beam to converge or diverge at a certain distance in front of the drying device 100. The position of the light-emitting element 304 within the reflector cup 302 is adjustable, thus allowing for changes in the convergence and / or direction of the output radiation beam. The shapes of the reflector cup 302 and the light-emitting element 304 can be optimized and varied relative to each other to output the desired heating power at a desired location within the drying device 100.

[0158] Alternatively, a heat-insulating material (e.g., fiberglass, mineral wool, cellulose, polyurethane foam, or polystyrene) can be inserted between the light-emitting element 304 and the reflector 302 to insulate the light-emitting element 304 from the heat of the reflector 302. Even if the temperature of the light-emitting element 304 is high, the thermal insulation can prevent the temperature of the reflector 302 from increasing. Alternatively, a heat-insulating material can be inserted between the periphery of the optical element and the reflector 302 to insulate the optical element from the heat of the reflector 302.

[0159] In one implementation, please refer to Figure 17 A- Figure 17 B. Radiation source 30 includes optical element 90, which is disposed at the opening of reflector cup 302 to filter out or reflect non-infrared radiation. In this way, only infrared radiation is directed to the object being dried.

[0160] Specifically, optical element 90 may include lenses, reflectors, prisms, gratings, beam splitters, filters, or combinations thereof that alter or redirect light. In some embodiments, optical element 90 may be a lens. In some embodiments, optical element 90 may be a Fresnel lens.

[0161] In one embodiment, the non-infrared radiation includes visible light and / or ultraviolet light. The optical element 90 may be made of a material with high infrared transmittance. Examples of materials for the optical element 90 may include oxides (e.g., silicon dioxide), metal fluorides (e.g., barium fluoride), metal sulfides or metal selenides (e.g., zinc sulfide, zinc selenide), and crystals (e.g., crystalline silicon, crystalline germanium). Further, either or both sides of the optical element 90 may be coated with a material that absorbs or reflects the visible and ultraviolet spectra, such that only wavelengths in the infrared range can pass through the optical element 90. The optical element 90 may filter out (e.g., absorb) radiation that is not in the infrared spectrum. The infrared transmittance of optical element 90 may be at least 95% (i.e., 95% of the incident radiation in the infrared spectrum passes through optical element 90), 95.5%, 96.0%, 96.5%, 97.0%, 97.5%, 98.0%, 98.5%, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9%, or higher. In one example, the infrared transmittance of optical element 90 may be 99%.

[0162] In one example, the light-emitting element 304 can emit radiation with wavelengths from 0.4 μm to 20 μm, the reflector cup 302 can reflect all the radiation toward the optical element 90 (i.e., no radiation is absorbed at the reflective surface), and the optical element 90 can filter out any visible spectral wavelengths between 0.4 μm and 0.7 μm from the reflected radiation, so that only infrared radiation in the infrared spectrum leaves the radiation source 30.

[0163] In one embodiment, a limiting rib or groove for fixing the optical element 90 can be provided at the opening of the reflector cup 302 or at the airflow outlet 404 of the air duct 40 to improve the ease of installation and reliability of the optical element 90.

[0164] In one embodiment, the difference in the coefficients of thermal expansion between the optical element and the reflector is within a preset range. This ensures that the coefficients of thermal expansion of the optical element and the reflector are similar, preventing deformation of the component with the smaller coefficient of thermal expansion when heated, which could occur due to a large difference in their coefficients. The coefficients of thermal expansion can be selected based on product performance through simulation or testing, and are not specifically limited here.

[0165] In one embodiment, the optical element 90 seals the opening of the reflector cup 302. This creates a relatively sealed internal space within the reflector cup 302.

[0166] Specifically, the internal space of the reflector cup 302 can be configured to have a certain degree of vacuum. The pressure inside the reflector cup 302 can be less than 0.9 standard atmospheres (atm), 0.8 atm, 0.7 atm, 0.6 atm, 0.5 atm, 0.4 atm, 0.3 atm, 0.2 atm, 0.1 atm, 0.05 atm, 0.01 atm, 0.001 atm, or even less. In one embodiment, the reflector cup 302 is in a near-vacuum state; for example, the pressure inside the reflector cup 302 can be approximately 0.001 atm or less. Vacuum can suppress the evaporation and / or oxidation of the light-emitting element 304 and extend the lifetime of the radiation source 30. Vacuum can also prevent heat convection or heat conduction between the light-emitting element 304 and the optical element 90 and / or the reflector cup 302.

[0167] In one embodiment, the reflector cup 302 is filled with a protective gas, which may be a certain amount of a non-oxidizing gas (such as an inert gas), while maintaining a certain level of vacuum to reduce the temperature rise of the gas inside the space formed by the reflector cup 302 and the inner surface of the optical element 90. This temperature rise, though small, is caused by thermal convection and conduction. Examples of non-oxidizing gases 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 further protects the material of the light-emitting element 304 from oxidation and evaporation.

[0168] exist Figure 17 In the embodiment shown in A, multiple radiation sources 30 share the same optical element 90; that is, one optical element is located at the opening of the reflector cup 302 of all radiation sources. Figure 17 In the embodiment shown in B, each radiation source has an optical element 90, meaning that one optical element 90 is located at the opening of a reflector 302. In other embodiments, some radiation sources share the same optical element, while each of the remaining radiation sources has its own optical element. This allows for multiple arrangements of the multiple radiation sources 30 and optical elements 90, enabling flexible configuration as needed.

[0169] In one embodiment, the drying equipment 100 further includes a control board electrically connected to the radiation source 30 and / or the motor 20; that is, the control board is electrically connected to at least one of the radiation source and the motor. Thus, at least one of the radiation source and the motor can be controlled, enabling control of the drying equipment 100.

[0170] In one embodiment, the drying equipment 100 includes a power supply 70 located within a housing 10, the power supply 70 being electrically connected to a control board, and the control board being electrically connected to a radiation source 30 and a motor 20. Thus, the power consumption of the radiation source 30 and the motor 20 can be controlled by the control board.

[0171] Specifically, the control board can convert the voltage of the power supply 70 to the voltage of the radiation source 30 and the motor 20 corresponding to the operating mode of the drying equipment 100, enabling the radiation source 30 and the motor 20 to operate in that mode. For example, by adjusting the voltage, the radiation power of the radiation source 30 and the speed of the motor 20 (i.e., the speed of the fan blades) can be adjusted. Alternatively, the power supply 70 can be switched on and off to control the operating time of the radiation source 30 and the motor 20. It is understood that in other embodiments, the power supply 70, the control board, the radiation source 30, and the motor 20 can have other connection methods. In one example, the power supply 70 can be installed in the handle 104.

[0172] In one embodiment, the power supply 70 includes a rechargeable battery. This allows the drying device 100 to be used without the constraints of a wiring harness, improving the user experience.

[0173] Specifically, the rechargeable battery can be a lithium-ion battery or other rechargeable batteries. There can be one or more rechargeable batteries, which can be connected in series, in parallel, or in a series-parallel connection. No specific limitation is made here. Additionally, to facilitate battery charging, the main body 102 or the handle 104 may be provided with a charging interface. It is understood that the charging interface can be a wired charging interface or a wireless charging interface; no specific limitation is made here. Furthermore, to facilitate battery removal, a battery cover can be provided on the handle 104. The battery cover is removable, facilitating the removal and installation of the battery.

[0174] In one embodiment, the drying device 100 further includes a sensor that senses the state of at least one of the drying device 100, its operating environment, and a receiver of airflow or radiation. Thus, the operation of the drying device 100 can be controlled based on the sensor signals, improving the user experience.

[0175] Specifically, the state includes at least one of temperature, humidity, distance, attitude, motion, flow rate, and flux.

[0176] The sensor may include at least one of a temperature sensor, a proximity / range sensor, a humidity sensor, an attitude sensor, a flow sensor, and a flux sensor. The sensor may be placed, for example, on the airflow outlet 404 side of housing 10 to monitor the state (e.g., humidity) of the object being dried (i.e., the receiver of airflow or radiation). The area where the airflow is applied to the object being dried may generally encompass the infrared radiation area (e.g., a radiation spot) on the object. The airflow can accelerate the evaporation of water from the object being dried by blowing away the humid air surrounding it. The airflow can also lower the temperature of the object being dried by infrared radiation to prevent damage. The temperature of the object being dried and the water on it must be maintained within an appropriate range to accelerate the evaporation of water while preventing the object from overheating. An appropriate temperature range may be 50 to 60 degrees Celsius. The speed of the airflow blowing onto the object can be adjusted to maintain the temperature of the object being dried within an appropriate range, for example, by blowing away hot water and excess heat. Proximity / range sensors and temperature sensors can work together to determine the temperature of the object being dried and control the airflow speed via a feedback loop to maintain a constant or programmed temperature for the object. The object being dried could be, for example, hair.

[0177] The attitude sensor can collect the attitude and motion of the drying device 100. For example, the attitude sensor may include an inertial detection module (IMU) that can detect the state of at least one of the roll, pitch, and yaw axes of the drying device 100, and can also detect whether it is in motion on the corresponding axis. For example, when a user blows air onto a part of the object being dried for a long time, the attitude sensor detects that the drying device 100 has not moved for a long time. In order to avoid damage to that part of the object being dried, the control board can control the speed of the motor 20 to decrease and / or the radiation intensity of the radiation source 30 to decrease based on the data output by the attitude sensor. It can also control the drying device 100 to provide audible, visual, and vibration alerts.

[0178] The flow sensor can detect the airflow rate, allowing the control board to adjust the speed of motor 20 to match the temperature of the object being dried. Similarly, the control board can also control the operation of motor 20 and / or radiation source 30 based on the flux data output by the flux sensor.

[0179] In one embodiment, the sensor is disposed within the housing 10 and located at the airflow outlet 404 of the air duct 40 and / or the opening of the radiation source 30. This allows for more accurate control of the airflow and / or radiation conditions.

[0180] Specifically, the sensor is located at the airflow outlet 404 of the air duct 40, enabling the detection of airflow conditions leaving the drying equipment 100, such as flow rate, throughput, temperature, and humidity. This allows for more accurate control of the airflow conditions leaving the drying equipment 100, preventing the internal environment of the drying equipment 100 from affecting the detection of airflow conditions. Similarly, the sensor is located at the opening of the radiation source 30, enabling the detection of radiation conditions leaving the drying equipment 100, such as intensity. This allows for more accurate control of the radiation conditions leaving the drying equipment 100, preventing the internal environment of the drying equipment 100 from affecting the detection of radiation conditions.

[0181] When a radiation source is operating, it needs to be maintained at a suitable operating temperature to ensure optimal performance and extend its service life. Therefore, in one embodiment, the drying equipment 100 includes a heat dissipation structure 80 through which the radiation source 30 transfers heat. The heat dissipation structure 80 can be disposed between the radiation source 30 and other components of the drying equipment 100. In this way, the heat dissipation structure can appropriately dissipate heat from the radiation source 30, maintaining it at a suitable operating temperature.

[0182] Specifically, the heat dissipation structure 80 can be formed by coupling the air duct 40 and the radiation source 30. In one embodiment, the radiation source 30 is coupled to the air duct 40. The coupling includes contact between the radiation source 30 and the air duct 40. For example, the radiation source 30 may include a reflector cup 302, and the coupling may include contact between the outer wall of the reflector cup 302 and the outer wall of the air duct 40, with the contact portion forming the heat dissipation structure 80. The coupling may also include contact between the base 310 of the reflector cup 302 and the outer wall of the air duct 40, with the contact portion forming the heat dissipation structure 80. The coupling may also include the heat dissipation structure 80 extending into the air duct 40, and the heat dissipation structure 80 connecting to the radiation source 30. The heat dissipation structure 80 can transfer heat to the radiation source through at least one of heat conduction and heat convection. The surface area for heat transfer in the heat dissipation structure 80 is determined based on the heat dissipation efficiency of the air duct 40 to the radiation source 30 and the normal operating temperature of the radiation source 30. In this way, precise heat dissipation of the radiation source 30 can be achieved. Specifically, the surface area used for heat transfer in the heat dissipation structure 80 can be determined by simulation testing or experimentation on the drying equipment 100.

[0183] Other components of the drying equipment 100 may include air duct 40, housing, etc.

[0184] In one embodiment, the heat dissipation structure 80 is integrally formed and connected with the radiation source 30 and / or other components of the drying device 100. This can improve the heat dissipation effect.

[0185] Specifically, a one-piece molded connection means that there are no connection gaps, or the connection gaps are small and few, allowing heat to dissipate in a timely manner, thereby improving the heat dissipation effect. Other components of the drying equipment 100 may include at least one of the motor 20, the air duct 40, and the housing.

[0186] In one embodiment, the heat dissipation structure 80 is connected to the radiation source 30 and / or other components of the drying device 100 via a first fastener. This allows for the fixation of the heat dissipation structure 80 to the radiation source 30 and / or other components of the drying device 100.

[0187] Specifically, in one example, the first fastener may include a screw to secure the heat dissipation structure 80 to the radiation source 30 and / or other components of the drying device 100. In another example, the first fastener may be formed by welding. In yet another example, the first fastener may include a snap-fit, with corresponding locking holes on the heat dissipation structure 80 and the radiation source 30 and / or other components of the drying device 100, the snap-fit ​​engaging with the locking holes to securely connect the heat dissipation structure 80 to the radiation source 30 and / or other components of the drying device 100. It is understood that the first fastener may also include other forms of fasteners, which are not limited in this application and will not be exemplified here.

[0188] In one embodiment, the radiation source 30 and / or other components of the drying device 100 are positioned to limit the heat dissipation structure 80 by a second fastener. This limits the heat dissipation structure 80, preventing displacement and facilitating its installation.

[0189] Specifically, the second fixing member can be a limiting groove, a limiting post, or a combination of both. By using the second fixing member to limit the heat dissipation structure 80, the heat dissipation structure 80 can be positioned during installation, making it easy to install and fix.

[0190] The radiation source comprises a first part and a second part. The first part is located outside the air duct, and the second part is connected to the first part and exchanges heat with the air duct. Figure 1 , Figure 4 and Figure 6In the illustrated embodiment, the second portion directly contacts the outer wall of the air duct 40. Specifically, in one example, a portion of the outer wall of the reflector 302 directly contacts the outer wall of the air duct 40 for heat exchange, and the contacting portion can form a heat dissipation structure or part of a heat dissipation structure. Specifically, a portion of the outer wall of the reflector 302 can form part of the outer wall of the air duct 40, directly contacting another portion of the outer wall of the air duct 40; that is, this portion of the outer wall of the reflector 302 is both part of the outer wall of the reflector 302 and part of the outer wall of the air duct 40. Alternatively, a portion of the outer wall of the reflector 302 can be located outside the outer wall of the air duct 40 and directly contact the outer wall of the air duct 40.

[0191] exist Figures 14-16 In the illustrated embodiment, the second part contacts the air duct 40 via an additional heat dissipation structure 80 for heat exchange. Specifically, the heat dissipation structure 80 may include heat-dissipating metals (such as aluminum, copper, aluminum alloys, copper alloys, etc.), carbon fiber materials, etc. The specific form of the heat dissipation structure 80 is not limited; for example, it may include one or any combination of heat dissipation fins, heat sinks, heat dissipation air ducts, and heat pipes. The heat dissipation structure 80 can transfer heat to the radiation source through at least one of heat conduction and heat convection.

[0192] Specifically, in one embodiment, the heat dissipation structure 80 may be connected between the radiation source and the air duct. In one example, the heat dissipation structure may be connected between the second part and the air duct. The heat dissipation structure can transfer heat from the radiation source to the air duct through at least one of thermal conduction and thermal convection, and the heat is carried away by the airflow within the air duct. The heat dissipation structure may also be formed on the outer wall of the reflector cup of the radiation source to transfer heat from the radiation source to other spaces within the housing. The housing may have heat dissipation holes, through which the heat from the radiation source transferred via the heat dissipation structure can be dissipated to the external environment of the drying equipment. Of course, the heat dissipation structure may also be connected to the inner wall of the housing and the radiation source to transfer heat from the radiation source to the housing. It should be noted that in this case, excessive housing temperature rise should be avoided to prevent inconvenience to the user.

[0193] In one embodiment, the heat dissipation structure 80 may connect the radiation source and the outer wall of the air duct 40, that is, the heat dissipation structure 80 is provided between the air duct 40 and the second part. In one example, the second part is a portion of the outer wall of the reflector 302, and the heat dissipation structure 80 connects this portion of the outer wall of the reflector 302 to the outer wall of the air duct 40.

[0194] In one implementation, please refer to Figure 14 and Figure 15A portion of the heat dissipation structure 80 is located within the air duct 40. In one example, the second portion is part of the outer wall of the reflector 302. One end of the heat dissipation structure 80 is connected to this portion of the outer wall of the reflector 302, and the other end of the heat dissipation structure 80 extends into the air duct 40, allowing the airflow within the air duct 40 to directly reach this end of the heat dissipation structure 80. Furthermore, the portion of the heat dissipation structure 80 located within the air duct 40 can be formed as a first air guide. In this way, the heat dissipation structure 80 can be reused to guide the airflow, reducing the adverse effects of this portion of the heat dissipation structure 80 on the airflow, and reducing wind noise and wind resistance.

[0195] Specifically, the first air guide can have a streamlined windward surface, allowing airflow to flow smoothly over it. Furthermore, the first air guide is integrally connected to the second air guide within the air duct 40. In this way, the second air guide within the air duct 40 can guide the airflow and also accelerate heat exchange efficiency. The second air guide can be a guide strip and / or a guide groove formed on the inner wall of the air duct 40, and it can also be streamlined. The second air guide allows for airflow rectification and direction adjustment. The integral connection between the first and second air guides within the air duct 40 ensures seamless airflow through both, further reducing wind noise and resistance.

[0196] In one embodiment, the second air guide is located at the airflow outlet of the air duct. This allows the second air guide to be positioned just before the airflow leaves the drying equipment, further reducing wind noise and guiding the airflow, thereby enhancing the user experience.

[0197] Specifically, the second air guide can be a guide strip and / or a guide groove formed on the inner wall of the air duct 40. The second air guide can also be a detachable nozzle, comb, or curler, or any combination of guide strips, guide grooves, nozzles, combs, and curlers.

[0198] In one embodiment, the second air guide is a guide vane of the motor. Thus, when the motor rotates, it drives the guide vane to rotate, thereby increasing the wind speed and guiding the airflow to accelerate the drying of the object.

[0199] Specifically, the guide vane can be connected to the output shaft of the motor through a transmission mechanism (such as a gear, worm gear, worm, etc.). The transmission mechanism has a certain reduction ratio, which enables the guide vane to rotate at the desired speed.

[0200] In one embodiment, the heat dissipation structure 80 forms part of the outer wall of the air duct 40. That is, a part of the outer wall of the air duct 40 can form a heat dissipation structure 80 that exchanges heat with a second part (such as a part of the outer wall of the reflector cup 302).

[0201] In one embodiment, the heat dissipation structure 80 forms part of the inner wall of the air duct 40. That is, a part of the inner wall of the air duct 40 can form the heat dissipation structure 80 and exchange heat with a second part (such as part of the outer wall of the reflector cup 302) through the air duct wall via a connecting structure.

[0202] In this embodiment, the outer wall and inner wall of the air duct 40 can be two sides of a single component, or one side of each of two components, with the two components connected to form the air duct 40. No specific limitations are imposed here.

[0203] In one embodiment, the heat dissipation structure includes a contact portion between the radiation source and the wall of the air duct.

[0204] Specifically, the radiation source 20 includes a second part, and a contact portion of the heat dissipation structure 80 is provided between the air duct 40 and the second part. In one example, the second part is a portion of the outer wall of the reflector 302, and the contact portion of the heat dissipation structure 80 connects this portion of the outer wall of the reflector 302 to the outer wall of the air duct 40. The wall of the air duct 40 may also include an inner wall of the air duct 40.

[0205] In one embodiment, the cross-sectional shape of the contact portion is the same as the contacted portion of the wall of the air duct 40. This allows the contact portion to fit more tightly against the wall of the air duct 40, improving heat exchange efficiency.

[0206] Specifically, in one example, the outer wall of the air duct 40 is arc-shaped, and the contact portion connects to the outer wall of the air duct. Along the radial direction of the air duct 40, the cross-sectional shape of the contact portion is the same as the arc shape of the outer wall of the air duct 40. In another example, the outer wall of the air duct 40 is planar, and the contact portion connects to the outer wall of the air duct 40. Along the radial direction of the air duct 40, the cross-sectional shape of the contact portion is the same as the planar shape of the outer wall of the air duct 40. The cross-sectional shape of the contact portion can also be other shapes, which are not limited in this application and will not be exemplified here.

[0207] In one embodiment, the contact portion further includes an extension extending into the air duct 40. In one example, the second portion is part of the outer wall of the reflector 302, one end of the contact portion of the heat dissipation structure 80 is connected to this part of the outer wall of the reflector 302, and the other end of the contact portion of the heat dissipation structure 80 extends into the air duct 40, allowing the airflow within the air duct 40 to directly reach this end of the contact portion. Furthermore, the extension guides the flow direction of the airflow within the air duct 40. This reduces the adverse effects of the extension on the airflow, thereby reducing wind noise and wind resistance.

[0208] Specifically, the extension can have a streamlined windward surface, through which airflow can flow smoothly.

[0209] In one embodiment, the contact portion of the heat dissipation structure 80 forms part of the outer wall of the air duct 40. That is, a part of the outer wall of the air duct 40 can form the contact portion of the heat dissipation structure 80 and exchange heat with a second part (such as a part of the outer wall of the reflector cup 302).

[0210] In one embodiment, the contact portion of the heat dissipation structure 80 may also form part of the inner wall of the air duct 40. That is, a part of the inner wall of the air duct 40 may form the contact portion of the heat dissipation structure 80, and exchange heat with the second part (such as part of the outer wall of the reflector cup 302) through the air duct wall via a connecting structure.

[0211] It is understood that in other embodiments, the heat dissipation structure 80 may also include other parts besides the contact portion. One end of this other part may be connected to the radiation source 30, while the other end is suspended. Alternatively, one end of this other part may be connected to the radiation source 30, while the other end may be connected to other components of the drying equipment 100, such as the housing 10.

[0212] The surface area used for heat dissipation in the heat dissipation structure 80 is determined based on the heat dissipation efficiency of the air duct 40 to the radiation source 30 and the normal operating temperature of the radiation source 30. This allows for precise heat dissipation from the radiation source 30. Specifically, the surface area used for heat transfer in the heat dissipation structure 80 can be determined through simulation testing or experiments on the drying equipment 100.

[0213] In one implementation, please refer to Figure 18 The heat dissipation structure 80 includes a first through-hole 108 disposed on the wall of the radiation source 30 to guide the cooling airflow into the radiation source 30. Thus, the heat dissipation structure 80 can guide the cooling airflow into the radiation source 30 through the first through-hole 108, effectively dissipating heat from high-temperature areas inside the radiation source 30. Specifically, the first through-hole 108 can introduce cooler airflow into the radiation source 30. When the radiation source 30 is operating, the temperature of the light-emitting element 304 is high, resulting in a high internal temperature of the radiation source 30. If excessive heat is not dissipated in time, it will shorten the service life of the radiation source 30. The cooler airflow introduced into the radiation source 30 through the first through-hole 108 can effectively dissipate heat from high-temperature areas. It should be noted that the high-temperature areas of the radiation source 30 can be determined in advance through simulation or testing.

[0214] In one embodiment, a first through-hole 108 is disposed on the wall of the reflector cup 302 of the radiation source 30. In this way, a cooler airflow can be directly guided to the light-emitting element 304 through the first through-hole 108 on the wall of the reflector cup 302, thereby enabling adaptive heat dissipation for the light-emitting element 304.

[0215] Normally, when the radiation source 30 is working, the temperature of the light-emitting element 304 is basically the highest. Therefore, excessively high temperature has the greatest impact on the service life of the light-emitting element 304, and the temperature rise inside the reflector cup 302 is also the most obvious. By opening a first through hole 108 in the wall of the reflector cup 302, the heat dissipation airflow can be introduced to the part of the light-emitting element 304 that needs to be cooled, thus avoiding excessively high temperature and affecting the service life of the light-emitting element 304.

[0216] In one embodiment, the first through-hole 108 extends into the heat dissipation structure 80 between the wall of the radiation source 30 and the air duct 40. This allows airflow within the air duct 40 to enter the interior of the radiation source 30 via the first through-hole 108.

[0217] Specifically, the first through hole 108 extends to the contact area between the radiation source 30 and the air duct 40. The wall of the air duct 40 may have an opening that communicates with the first through hole 108. The airflow in the air duct 40 (which may be naturally diffused airflow or airflow accelerated by the motor 20 when it is working) can enter the interior of the radiation source 30 through the opening and the first through hole 108 to dissipate heat from the high-temperature area inside the radiation source 30.

[0218] In one embodiment, the drying device 100 further includes a first connection portion connected to the radiation source 30, with a first through hole 108 extending into the first connection portion. This allows for indirect and appropriate heat dissipation from the radiation source 30.

[0219] Specifically, the first connecting part can be a non-contact portion located between the radiation source 30 and the air duct 40. The first connecting part can be a connecting part for fixing the radiation source 30. For example, the first connecting part can be a connecting part for fixing the radiation source 30 to the housing 10, a connecting part for fixing the radiation source 30 to the motor 20, or a connecting part for fixing the radiation source 30 to other components of the drying equipment 100; no specific limitations are made here. The cooling airflow can enter the first through hole 108 through natural diffusion and carry away the heat from the first connecting part, thereby dissipating heat from the radiation source 30.

[0220] In one embodiment, the first connecting portion has a heat dissipation function. This further improves the heat dissipation efficiency of the first connecting portion.

[0221] Specifically, the first connecting part with heat dissipation function can be made of heat dissipation material, such as metal, carbon fiber, etc., and / or the surface of the first connecting part is coated with a heat dissipation coating, and / or the first connecting part is provided with a heat dissipation structure, for example, the heat dissipation structure may include one or any combination of heat dissipation fins, heat dissipation air duct 40, heat pipe and heat dissipation plate.

[0222] In one embodiment, the heat dissipation structure 80 further includes a second through hole 110 disposed in the radiation source 30, through which the heat dissipation airflow flowing in from the first through hole 108 flows out of the radiation source 30. In this way, the high temperature of the radiation source can be conducted to the outside of the radiation source by airflow, further improving the heat dissipation efficiency of the radiation.

[0223] Specifically, the first through hole 108 and the second through hole 110 allow the low-temperature airflow entering the radiation source 30 to absorb heat and then flow out of the radiation source 30 in a timely manner, thereby allowing the low-temperature airflow to continuously circulate into the radiation source 30 and continuously dissipate heat from the inside of the radiation source 30.

[0224] In one embodiment, the radiation source 30 includes a reflector 302 and an optical element disposed at the opening of the reflector 302, with a second through hole 110 formed in the wall of the reflector 302 and / or the optical element. This allows the heat-absorbing airflow to exit the radiation source 30 through the wall of the reflector 302 and / or the optical element.

[0225] Specifically, when the second through-hole 110 is located at the part of the optical element 90 that covers the radiation source 30, the heat-absorbing airflow can flow to the outside of the drying device 100. When the second through-hole 110 is located on the wall of the reflector cup 302, the heat-absorbing airflow can flow into the housing 10, and then be guided to the outside of the drying device 100 through the heat dissipation holes in the housing 10.

[0226] In one embodiment, the second through hole 110 is formed on the wall where the reflector 302 contacts the air duct 40, and / or on the wall where the reflector 302 does not contact the air duct 40. This allows the heat-absorbing airflow to pass through the wall of the air duct 40 and enter the air duct 40 for heat dissipation.

[0227] Specifically, the heat-absorbing airflow can flow into the air duct 40 through the second through hole 110. The airflow in the air duct 40 is usually a low-temperature and high-velocity airflow. In this way, the heat-absorbing airflow can be driven by the low-temperature and high-velocity airflow in the air duct 40 to flow towards the airflow outlet of the air duct 40.

[0228] In one embodiment, the heat dissipation structure 80 includes a third through-hole (not shown) that connects to the interior of at least two radiation sources 30. This allows airflow to circulate between the at least two radiation sources 30, resulting in a more uniform internal temperature and preventing significant differences in radiation intensity that could affect the lifespan of the radiation sources 30, as well as impacting the user experience.

[0229] Specifically, the at least two radiation sources 30 may include two adjacent radiation sources 30 or two non-adjacent radiation sources 30. Two adjacent radiation sources 30 can be connected to form a connection point, and a third through-hole can be located at the connection point. Alternatively, two adjacent radiation sources 30 can be connected via an additional second connecting portion, and the third through-hole can extend into the second connecting portion. Two non-adjacent radiation sources 30 can be connected via the second connecting portion, and the third through-hole can extend into the second connecting portion. Among the at least two radiation sources 30 connected by the third through-hole, the airflow within the higher-temperature radiation source 30 forms convection with the airflow within the lower-temperature radiation source 30 through the third through-hole, causing the internal temperatures of the at least two radiation sources 30 to tend to be consistent. This ensures that the operating states of the at least two radiation sources 30 are basically consistent, which is beneficial for improving the user experience.

[0230] In one embodiment, the radiation source 30 includes a reflector 302 and an optical element disposed at the opening of the reflector 302. A third through-hole is also formed in the wall of the reflector 302 and / or the optical element. Thus, the third through-hole can be implemented by creating an opening in the wall of the reflector 302 and / or the optical element, allowing for flexible and diverse placement of the third through-hole.

[0231] In one embodiment, the cooling airflow originates from inside the duct 40 and / or outside the housing 10.

[0232] Specifically, the airflow within the duct 40 can be guided to the radiation source 30 through the through-holes in the above embodiments to form a heat dissipation airflow. The airflow outside the housing 10 can be guided to the radiation source 30 by opening an air inlet at a location on the housing 10 far from the radiation source 30, and by opening a through-hole in the radiation source 30 communicating with the air inlet (such as the through-hole in the radiation source 30 in the above embodiments, and / or the through-hole in the heat dissipation structure 80). Furthermore, a fan can be installed at the air inlet to accelerate the flow rate of the external low-temperature airflow, further improving heat dissipation efficiency.

[0233] In one embodiment, the heat dissipation structure 80 includes a fourth through hole 112, which is formed by a through hole communicating with the interior of the air duct 40. The fourth through hole 112 is used to guide the heat dissipation airflow to the radiation source 30. In this way, the airflow within the air duct 40 can be guided to the radiation source 30.

[0234] Specifically, the fourth through hole 112 can be a through hole opened on the wall of the air duct 40 to guide the airflow in the air duct 40 to form a heat dissipation airflow for the radiation source 30, and can be guided to the outside and / or inside of the radiation source 30 through the through hole in the above embodiment.

[0235] In one embodiment, the fourth through hole 112 may be formed on the wall of the air duct 40. For example, the wall of the isolation member 50 is formed as part of the inner wall of the air duct 40, and the fourth through hole 112 may also be a through hole formed on the wall of the isolation member 50.

[0236] In one embodiment, the heat dissipation structure 80 further includes a fifth through hole 114 disposed on other components of the drying device 100, through which the heat dissipation airflow passing through the fourth through hole 112 can flow out. In this way, airflow circulation can be formed, further improving the heat dissipation effect on the radiation source.

[0237] Specifically, other components of the drying equipment 100 may include the housing 10, the motor 20, and the air duct 40. The cooling airflow flowing in through the fourth through hole 112 can be guided to the housing 10, the motor 20, and the air duct 40 through the fifth through hole 114 to form an airflow circulation.

[0238] In one embodiment, the radiation source 30 includes a reflector 302 and an optical element disposed at the opening of the reflector 302. A fifth through-hole 114 is formed in the portion of the optical element 90 that does not cover the radiation source 30. In this way, the cooling airflow flowing in through the fourth through-hole 112 can flow out of the drying device 100 through the fifth through-hole 114 of the optical element.

[0239] Specifically, the area of ​​the optical element can be larger than the opening area of ​​the reflector cup 302. The optical element includes a part that does not cover the opening of the reflector cup 302. This part has a fifth through hole 114, which allows the heat dissipation airflow with a high temperature inside the drying equipment 100 to flow out of the drying equipment 100 through the fifth through hole 114. On the one hand, this will not affect the infrared radiation emitted from the opening of the reflector cup 302. On the other hand, a circulation channel can be formed through the fourth through hole 112 and the fifth through hole 114, making full use of the optical element 90.

[0240] In one implementation, please refer to Figure 18 The fifth through hole 114 is formed on the housing 10 and / or on the duct wall. In this way, the heat dissipation airflow can flow out of the drying equipment 100 or flow into the duct 40.

[0241] Specifically, the external ambient temperature of the drying equipment 100 is low. After the airflow flowing in through the fourth through hole 112 absorbs heat, it can flow out of the drying equipment 100 through the fifth through hole 114 opened on the housing 10, realizing airflow circulation and heat dissipation for the radiation source 30.

[0242] In one embodiment, the drying device 100 includes a third connection portion connecting the air duct 40 and the radiation source 30, and a fourth through hole 112 extends into the third connection portion. This allows for proper heat dissipation from the radiation source 30.

[0243] Specifically, the third connection part can be a connection part that fixes the radiation source 30 and the air duct 40, or it can be a connection part that detachably connects at least one of the radiation source 30 and the air duct 40. The airflow in the air duct 40 enters the third connection part through the fourth through hole 112 to dissipate heat from the third connection part. Since the third connection part is connected to the radiation source 30, the heat of the radiation source 30 is carried away by the airflow in the air duct 40, thereby achieving heat dissipation of the radiation source 30.

[0244] In one embodiment, the third connecting portion has a heat dissipation function. This further improves the heat dissipation efficiency of the third connecting portion.

[0245] Specifically, the third connection part with heat dissipation function can be made of heat dissipation material, such as metal, carbon fiber, etc., and / or the surface of the third connection part is coated with a heat dissipation coating, and / or the third connection part is provided with a heat dissipation structure, such as heat dissipation fins, heat dissipation duct 40, heat pipe and heat dissipation plate or any combination thereof.

[0246] In one embodiment, the difference in the coefficients of thermal expansion between the heat dissipation structure 80 and the radiation source 30 and / or other components of the drying device 100 is within a preset range. This ensures that the coefficients of thermal expansion of the heat dissipation structure 80 and the radiation source 30 and / or the drying device 100 are similar, preventing deformation or damage to components with a smaller coefficient of thermal expansion when heated due to a large difference in their coefficients.

[0247] Specifically, the difference in thermal expansion coefficients between the heat dissipation structure 80 and the radiation source 30 may be within a preset range; the difference in thermal expansion coefficients between the heat dissipation structure 80 and other components of the drying equipment 100 may be within a preset range; or the difference in thermal expansion coefficients between the heat dissipation structure 80 and the radiation source 30 and other components of the drying equipment 100 may be within a preset range. The preset range can be calibrated in advance.

[0248] In one embodiment, the heat dissipation structure 80 is made of the same material as the radiation source 30 and / or other components of the drying device 100. This ensures that the heat dissipation structure 80 and the radiation source 30 and / or the drying device 100 have essentially the same coefficient of thermal expansion, preventing deformation of components with a smaller coefficient of thermal expansion when heated due to significant differences in their coefficients.

[0249] In one example, the heat dissipation structure 80, the reflector 302 of the radiation source 30, and the housing 10 are all made of metal. In another example, the heat dissipation structure 80, the reflector 302 of the radiation source 30, and the housing 10 are all made of carbon fiber.

[0250] In one implementation, please refer to Figure 19 A-19D, Figure 20 A-20D, Figure 21 A-21D and Figure 22 In A-22D, the integral air duct 40 and the integral radiation source 30 are integrally formed and connected. In this way, the integral structure formed by the air duct 40 and the radiation source 30 has the characteristics of light weight, high connection strength, and high heat transfer efficiency.

[0251] Specifically, the air duct 40 can be made of a heat-dissipating material (such as metal, carbon fiber, etc.), and the reflector cup 302 of the radiation source 30 can also be made of a heat-dissipating material (such as metal, carbon fiber, etc.). The two are integrally formed and connected by die casting or other methods. This integral connection eliminates the need for additional connectors, reducing the number of components used and thus reducing weight. The integral connection also means there are no connection gaps, or very few gaps, allowing for timely heat transfer, thereby improving heat dissipation and connection strength. The air duct 40 and the radiation source 30 can be installed as a single unit within the housing 10, facilitating installation and minimizing errors.

[0252] in, Figure 19 A-19D and Figure 20 A-20D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 21 A-21D and Figure 22 The A-22D is a radiation source 30 surrounded by a wind tunnel 40. It should be noted that, although... Figure 23 The A-42D does not display component numbers, but the relevant component numbers can be found by referring to... Figure 19 Interpret the component designations shown in A-22D.

[0253] In one implementation, please refer to Figure 23 A-23D, Figure 24 A-24D Figure 25 A-25D and Figure 26 In the A-26D, the overall air duct 40 and part of the radiation source 30 are integrally molded and connected. However, the other part of the radiation source 30 and the overall air duct 40 are not integrally molded and connected.

[0254] Specifically, a portion of the reflector cup 302 can be integrally formed and connected to the air duct 40 through die casting or other methods. Another portion of the reflector cup 302 can be separately connected to this portion. The air duct 40 and the radiation source 30 can be assembled together and then installed into the housing 10.

[0255] exist Figure 23 A and Figure 25 In option A, the reflector 302 can be connected vertically via connectors, which facilitates the installation of the light-emitting element 304 and the reflector 302; or it can be connected horizontally via connectors, which allows the portion of the reflector 302 connected to the light-emitting element 304 to be directly connected to the remaining portion of the reflector 302.

[0256] exist Figure 23B and Figure 25 In option B, the heat dissipation structure 80, the air duct 40, and the lower half of the reflector cup 302 can be integrated into one unit; or the heat dissipation structure 80 and the base 310 of the reflector cup 302 can be integrated into one unit.

[0257] in, Figure 23 A-23D and Figure 24 A-24D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 25 A-25D and Figure 26 The A-26D is a radiation source 30 surrounded by a duct 40. Furthermore, the squares in the diagram indicate the connection points between the two components.

[0258] In one implementation, please refer to Figure 27 A-27D, Figure 28 A-28D, Figure 29 A-29D and Figure 30 In the A-30D, part of the air duct 40 and the overall radiation source 30 are integrally molded and connected. However, another part of the air duct 40 and the overall radiation source 30 are not integrally molded and connected.

[0259] Specifically, the reflector cup 302 can be integrally formed and connected to a part of the air duct 40 by die casting or other means. The other part of the air duct 40 can be separately connected to this part of the air duct 40. The air duct 40 and the radiation source 30 can be assembled together and then installed into the housing 10.

[0260] in, Figure 27 A-27D and Figure 28 A-28D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 29 A-29D and Figure 30 A-30D is a radiation source 30 surrounded by a duct 40. Furthermore, the squares in the diagram indicate the connection points between the two components.

[0261] In one implementation, please refer to Figure 31 A-31D, Figure 32 A-32D, Figure 33 A-33D and Figure 34 In the A-34D design, part of the air duct 40 and part of the radiation source 30 are integrally formed and connected. However, another part of the radiation source 30 and another part of the air duct 40 are not integrally formed and connected. The air duct 40 and the radiation source 30 can be assembled together before being installed into the housing 10.

[0262] Specifically, a portion of the reflector cup 302 can be integrally formed and connected to a portion of the air duct 40 through die casting or other methods. Another portion of the reflector cup 302 can be separately connected to this portion. Similarly, another portion of the air duct 40 can be separately connected to this portion. The air duct 40 and the radiation source 30 can be assembled together and then installed into the housing 10.

[0263] exist Figure 31 A and Figure 33 In A, the opening / lower half of the reflector cup 302 and the front / middle part of the air duct 40 are integrated, or the base 310 / lower half of the reflector cup 302 and the rear / middle part of the air duct 40 can be integrated.

[0264] in, Figure 31 A-31D and Figure 32 A-32D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 33 A-33D and Figure 34 A-34D is a radiation source 30 surrounded by a duct 40. Furthermore, the squares in the diagram indicate the connection points between the two components.

[0265] In one implementation, please refer to Figure 35 A-35D, Figure 36 A-36D, Figure 37 A-37D and Figure 38 In the A-38D, the integral air duct 40 and the integral radiation source 30 are not integrally molded connections.

[0266] Specifically, the air duct 40 and the reflector cup 302 can be molded separately. The outer wall of the air duct 40 can directly contact the outer wall of the reflector cup 302 or contact and connect through a heat dissipation structure. After the two are assembled together, they can be installed into the housing 10.

[0267] exist Figure 35 A and Figure 37 In A, the air duct 40 and the reflector 302 are directly connected via an additional connector, or both are connected to a third party. Figure 35 B and Figure 37 In section B, the air duct 40 and the reflector cup 302 are connected via additional connectors and / or a heat dissipation structure 80. Figure 35 C and Figure 37 In C, the air duct 40 and the reflector cup 302 are connected by an additional connector, heat dissipation structure 80, and / or vent pipe.

[0268] in, Figure 35 A-35D and Figure 36 A-36D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 37 A-37D and Figure 38The A-38D is a radiation source 30 surrounded by a duct 40. Furthermore, the squares in the diagram indicate the connection points between the two components.

[0269] In one implementation, please refer to Figure 39 A-39D, Figure 40 A-40D, Figure 41 A-41D and Figure 42 In A-42D, the air duct 40 and the radiation source 30 do not necessarily have to be assembled together. Specifically, when installing the air duct 40 and the radiation source 30 in the housing 10, the air duct 40 and the radiation source 30 can be installed into the housing 10 sequentially or simultaneously.

[0270] exist Figure 39 A and Figure 41 In section A, nothing connects the air duct 40 and the reflector 302. Figure 39 B and Figure 41 In section B, the air duct 40 has openings to allow the heat dissipation structure 80 to be inserted, or the heat dissipation structure 80 is located at the front of the air duct 40. Figure 39 C and Figure 41 In C, the additional connectors and / or heat dissipation structure 80 of the reflector cup 302 are inserted into the opening of the air duct 40. Figure 39 D and Figure 41 In D, the additional connectors of the air duct 40 and / or the heat dissipation structure 80 are inserted into the opening of the reflector cup 302.

[0271] in, Figure 39 A-39D and Figure 40 A-40D is a radiation source 30 positioned around the airflow outlet 404 of the duct 40. Figure 41 A-41D and Figure 42A-42D shows a radiation source 30 surrounded by an air duct 40. The squares in the figure indicate the connection points between the two components. In one embodiment, the number of radiation sources 30 can be single or multiple (two or more). When there are multiple radiation sources 30, they are housed within a housing and are used to generate and direct infrared radiation outside the housing. To provide a suitable amount of radiation, the multiple radiation sources 30 are configured such that the infrared radiation generated by the multiple radiation sources 30 forms at least one spot at a certain distance from the airflow outlet 404 of the air duct 40. This results in a high intensity of infrared radiation in the spot area, enabling high-speed drying of objects. It is understood that a single radiation source 30 can also be configured such that the radiation from the radiation source 30 forms a spot at a certain distance outside the opening side of the radiation source 30. Thus, the multiple radiation sources 30 are configured such that the infrared radiation generated by the multiple radiation sources 30 forms at least one light spot at a certain distance from the airflow outlet of the air duct. In this way, the infrared radiation of each radiation source 30 can be used to dry the target object, so that the multiple radiation sources 30 can provide a suitable amount of radiation to the target object, while avoiding the problem of excessively high operating temperature of a single radiation source 30.

[0272] Specifically, by adjusting the light emission direction of the radiation sources 30, multiple radiation sources 30 can form a light spot at a certain distance from the airflow outlet of the air duct 40. The light spot can be circular, with a diameter of 10 cm. In one example, the "certain distance" can be 10 cm. The light spot can also be elliptical or other shapes, without specific limitations. It is understood that the number of light spots can be two or more, achieved by adjusting the opening direction of the radiation sources 30. For example, if there are six radiation sources 30, all six sources can form one light spot, or three sources can form one light spot, and another three can form another light spot, etc. Preferably, the number of light spots is less than the number of radiation sources 30.

[0273] Furthermore, one or more radiation sources 30 can be tilted as a whole to adjust the direction of light emission (e.g., Figure 43 and Figure 44 As shown), the light emission direction can be adjusted by adjusting the direction of the opening of one or more radiation sources 30 (such as the opening of the reflector cup 302), or by adjusting the installation direction of the light-emitting element, or by any combination of the above methods, so as to form a light spot at a certain distance from the airflow outlet of the air duct 40. This application does not make specific limitations on this.

[0274] In this embodiment, for a certain irradiance, the light spot illuminating the target object (the object to be dried) has an optimal area (at the same time, the area of ​​thermal radiation and the area of ​​wind are coupled and should be matched as much as possible, so an optimal irradiation area can be determined, such as a circle with a diameter of 10cm). From this, the optimal value of the final irradiance flux acting on the target object (irradiance x irradiation area) can be calculated. Then, the power required for various irradiance source 30 arrangement schemes can be calculated by the irradiance energy / electrical energy conversion efficiency of the radiation source 30 radiated to the designated area. Then, the appropriate number and size combination of the light-emitting elements of the radiation source 30 and the size of the corresponding reflector cup 302 can be selected. In these combinations, if a single radiation source 30 is used, the thermal radiation power density at the opening of the radiation source 30 (the opening of the reflector cup 302) will be high because the infrared light will diverge after being emitted, which may cause burns in a short time. However, multiple radiation sources 30 can be set up separately (the total power of multiple radiation sources 30 is the same as the power of a single radiation source 30), and the thermal radiation power density at the opening (radiation outlet) of each radiation source 30 is relatively lower and safer.

[0275] Among the multiple radiation sources 30, two adjacent radiation sources 30 can be in close contact or separated by a certain distance, without specific limitations here.

[0276] In one implementation, please refer to Figure 44 The optical axes H of multiple radiation sources 30 can be converged to a predetermined position away from the drying equipment 100. In this way, the radiation energy at the predetermined position can be stronger, thereby increasing the drying speed of the target object.

[0277] Specifically, the radiation source 30 may include a reflector 302 and an optical element. The optical element is installed at the opening of the reflector 302, and the optical axis H of the radiation source 30 may be the optical axis of the optical element. The predetermined position may be a position at a certain distance from the airflow outlet of the air duct 40. For example, the predetermined position may be a position 10 cm away from the airflow outlet of the air duct 40.

[0278] In one implementation, please refer to Figure 45 The radiation source 30 includes a first reflector 306, which is disposed within the light-emitting element 304. In this way, infrared radiation from the light-emitting element 304 can be reflected to the opening of the reflector cup 302, improving the utilization rate of infrared radiation.

[0279] Specifically, the axial cross-section of the reflective surface of the first reflector 306 can be in the shape of a polynomial curve, such as a parabola. The first reflector 306 can be made of a high-temperature resistant material, and a coating is provided on the reflective surface, which has high reflectivity to infrared radiation. In one example, the light-emitting element 304 is a light bulb.

[0280] In one embodiment, the light-emitting element 304 includes a clamping position 308, and a first reflector 306 is disposed near the clamping position 308. In this way, infrared radiation directed toward the clamping position 308 can be reflected to the opening of the reflector cup 302, reducing radiation loss.

[0281] Specifically, the light-emitting element 304 may include a filament connected to a clamping position 308. When the filament is energized, it emits infrared radiation, which is emitted in all directions, with some of the infrared radiation directed towards the clamping position 308. Therefore, by placing a first reflector 306 near the clamping position 308, this portion of the infrared radiation can be reflected to the opening of the reflector cup 302, thereby improving the utilization rate of the infrared radiation. The distance between the first reflector 306 and the clamping position 308 can be pre-calibrated and is not specifically limited here. In one example, the first reflector 306 may be installed near the clamping position 308.

[0282] In one embodiment, the light-emitting element 304 includes a light-emitting portion 309, and the axial cross-section of the reflective surface of the first reflector 306 is a polynomial curve shape facing the light-emitting portion 309, with the light-emitting portion 309 located at the focal point of the reflective surface of the first reflector 306. In this way, infrared radiation emitted from the light-emitting portion 309 towards the first reflector 306 can be reflected by the first reflector 306 to form a parallel beam that exits through the opening of the reflector cup 302.

[0283] Specifically, the shape of the polynomial curve can include parabolic, elliptical, hyperbolic, and other shapes. In one example, the axial cross-section of the reflective surface of the first reflector 306 is parabolic.

[0284] The light-emitting part 309 is the part that emits infrared radiation when energized. In one example, the light-emitting part 309 may be a filament (such as a tungsten filament). It is understood that in other examples, the light-emitting part 309 may also be block-shaped or other shapes.

[0285] In one embodiment, the light-emitting element 304 includes a light-emitting portion 309 supported by a conductive bracket, a first reflective element 306 mounted on the conductive bracket, and a radiation source 30 including an insulating element connecting the conductive bracket and the first reflective element 306. This ensures insulation between the conductive bracket and the first reflective element 306.

[0286] Specifically, the light-emitting element 304 also includes pins located at the clamping position 308. A conductive bracket can connect the pins and the light-emitting part 309. The first reflector can be made of metal. The first reflector 306 is mounted on the conductive bracket, and the connection point with the conductive bracket needs to be insulated to prevent short circuits. Therefore, by connecting the conductive bracket and the first reflector 306 with an insulating component, insulation is achieved between the conductive bracket and the first reflector 306, ensuring the normal operation of the light-emitting element 304.

[0287] In one embodiment, the light-emitting element 304 includes a clamping position 308, and the first reflective element 306 is supported by an insulating bracket connected to the clamping position 308. This allows for the installation of the first reflective element 306.

[0288] Specifically, the first reflector 306 may not be mounted on the light-emitting part 309, but may be mounted on the clamping position 308 by another insulating bracket.

[0289] In one embodiment, the radiation source 30 includes a second reflector 312, which is located within the light-emitting element 304 near the top of the light-emitting element 304. This improves the utilization rate of infrared radiation.

[0290] Typically, the light emitted from the light-emitting part 309 and exiting through the edge of the reflector cup 302 has a relatively large emission angle. If this portion of the light were emitted directly, it might not be able to reach the target object. By installing a second light-emitting element 304 above the light-emitting element 304, this portion of the light emitted from the light-emitting part 309 located at the focal point of the reflector cup 302 can be reflected back into the reflector cup 302 by the second reflector 312, and then reflected again by the reflector cup 302. This reduces the emission angle of this portion of the light, allowing it to be directed to the target object and further reducing radiation loss.

[0291] In one embodiment, the axial cross-section of the reflective surface of the second reflector 312 is a polynomial curve shape facing the light-emitting element 304, with the light-emitting element 304 located at the focal point of the reflective surface of the second reflector 312. This allows infrared radiation emitted from the light-emitting part 309 towards the second reflector 312 to be reflected by the second reflector 312, then directed towards the reflector cup 302, and finally emitted through the reflector cup 302 to form a parallel light beam.

[0292] Specifically, the shape of the polynomial curve can include parabolic, elliptical, hyperbolic, and other shapes. In one example, the axial cross-section of the reflective surface of the second reflector 312 is parabolic.

[0293] In one embodiment, the second reflector 312 has a light-transmitting hole (not shown). This allows some of the light emitted by the light-emitting part 309 to exit through the light-transmitting hole.

[0294] Specifically, in one embodiment, the planar shape of the second reflector 312 can be circular, and the light-transmitting hole can be opened near the center of the circle. In this way, the light emitted by the light-emitting part 309 opposite to the light-transmitting hole can be emitted directly from the light-transmitting hole. The emission angle of this part of the light is usually small. Therefore, this part of the light can be allowed to be emitted directly from the light-transmitting hole without being reflected by the second reflector 312.

[0295] In one embodiment, the light-emitting element 304 includes a light-emitting portion 309 supported by a conductive bracket, a second reflector 312 mounted on the conductive bracket, and a radiation source 30 including an insulating member (not shown) connecting the conductive bracket and the second reflector 312. This provides insulation between the conductive bracket and the second reflector 312, improving safety and reliability.

[0296] Specifically, the second reflector 312 can be made of metal. The second reflector 312 is mounted on a conductive support, and the connection point with the conductive support must be insulated to prevent short circuits during installation. Therefore, the insulating component connects the conductive support and the second reflector 312, ensuring insulation between them and guaranteeing the normal operation of the light-emitting element 304.

[0297] In one embodiment, the light-emitting element 304 includes a clamping position 308, and the second reflector 312 is supported by a second insulating bracket connected to the clamping position 308. This allows for the installation of the second reflector 312.

[0298] Specifically, the second reflector 312 may not be mounted on the light-emitting part 309. The second reflector 312 may be supported by an additional insulating bracket located at the clamping position 308 and close to the top of the light-emitting part 309.

[0299] In one implementation, please refer to Figure 46 and Figure 48 The reflector cup 302 has a recessed section in its wall, the shape of which is adapted to the air duct 40 and / or the housing 10. This allows the drying equipment 100 to be more compact.

[0300] Specifically, among the multiple radiation sources 30, the configuration (parabolic) of the reflector cup 302 occupies equipment space and / or compresses the air duct 40 (thus affecting the airflow). Due to the overall size limitations of the drying equipment 100, the overall space utilization can be improved by increasing the number of radiation sources 30 while reducing the size of individual reflectors cup 302. However, due to limitations in the manufacturing processes of various radiation sources 30 (such as the filament size in a light bulb), if the size of the reflector cup 302 is relatively small compared to the radiation source 30, the radiation efficiency will be severely reduced. Simultaneously, the light-emitting element 304 is installed inside the reflector cup 302, requiring some mounting and positioning structures within the reflector cup 302. These structures cause greater disruption to the reflective cup shape of smaller reflectors cup 302s than larger ones. Furthermore, within a given product shape, using a large reflector cup 302 may exceed shape limitations. To meet both radiation efficiency and the above two constraints, the reflector cup 302 needs to be externally cut to accommodate the air duct 40 and / or the housing 10.

[0301] The radiation source 30 exchanges heat with the air duct 40 through the wall of the reflector cup 302. The conventional configuration of the reflector cup 302 limits the contact area between its wall and the air duct 40. To increase this area, part of the reflector cup 302 wall needs to erode the air duct 40, thus affecting wind speed, airflow, and generating wind resistance. Therefore, it is necessary to modify (e.g., cut) the reflector cup 302 wall that intrudes into the air duct 40 to accommodate its shape, thereby reducing the impact on the wind. The advantage of this is that, given the dimensions of the housing 10, the diameter of the air duct 40 can be relatively large.

[0302] Meanwhile, the portion of the reflector 302 that contacts the inner wall of the housing 10 is also cut to fit the shape of that portion. Please refer to... Figure 48 Through simulation comparison of the uncut reflector cup, it was found that for a reflector cup 302 of a certain diameter, the cutting of the above two parts has no significant impact on the total output power of the reflector cup 302 and the energy density of the light spot at a certain distance, which is within an acceptable range.

[0303] Specifically, the clearance portion can be a part formed on the outer wall of the reflector cup 302 to adapt to the shape of the air duct 40 and / or the housing 10. In this way, when the reflector cup 302 is coupled with the air duct 40 and / or the housing 10, the overall size after assembly can be reduced without affecting the shape of the air duct 40 and / or the housing 10, thereby facilitating overall miniaturization.

[0304] It should be noted that the following factors need to be considered when setting up a shelter:

[0305] Cutting area: related to heat dissipation efficiency and maintaining the operating temperature of the 304 light-emitting component;

[0306] The shape of the cut surface (the cut of the contact surface with the air duct 40): balances the influence on the wind and the reflection path of light (which in turn affects the convergence of light);

[0307] Cutting position: For different cutting positions, there are optimal solutions for the exit power and the power at the target spot.

[0308] When cutting, please note the following:

[0309] Entry point: In front of the focus of a polynomial curve (such as a parabola).

[0310] Exit cut: Must meet the configuration constraints of the outer wall of the drying equipment 100 body and the air duct 40.

[0311] exist Figures 46-47 In the middle, multiple radiation sources 30 are arranged around the airflow outlet 404 of the wind duct 40.

[0312] exist Figures 49-50 In the diagram, multiple radiation sources 30 are arranged on one side of the airflow outlet 404 of the air duct 40, which is the upper half in the diagram.

[0313] exist Figures 51-52 , Figures 53-54 In the middle, multiple radiation sources 30 are surrounded by wind ducts 40.

[0314] In one embodiment, the clearance portion includes a first clearance portion 314, the shape of which matches the contour of the air duct 40. This allows the reflector cup 302 to be positioned closer to the air duct 40, improving the space utilization of the drying equipment 100.

[0315] In one embodiment, the point on the first clearance portion 314 furthest from the opening of the reflector cup 302 is located on the side of the focal point of the reflective surface of the reflector cup 302 closer to the opening of the reflector cup 302. In this way, it can be ensured that the entry cut of the clearance portion is in front of the plane of the focal point of the reflector cup 302.

[0316] Specifically, the axial cross-section of the reflective surface of the reflector cup 302 is in the shape of a polynomial curve (such as a parabola). The point on the first recess 314 furthest from the opening of the reflector cup 302 is at the inlet. In this way, the light emitted by the light-emitting element 304 can be reflected by the reflective surface portion connected to the recess to form a parallel beam of light, reducing the influence of the recess on the light emitted by the light-emitting element 304.

[0317] In one embodiment, the first air-proof section 314 comes into contact with the airflow within the air duct 40. This improves the heat exchange efficiency between the first air-proof section 314 and the air duct 40, which helps maintain the radiation source 30 at a suitable operating temperature.

[0318] Specifically, the first air-proof portion 314 can be formed as part of the wall of the air duct 40, so that the first air-proof portion 314 can come into contact with the airflow in the air duct 40 and have its heat carried away by the airflow.

[0319] In one embodiment, the air duct 40 has a circular outline, with the center of the radial section of the housing 10 as its center. The first clearance portion 314 can be arc-shaped, with the curvature adapting to the outline of the air duct 40, allowing the first clearance portion 314 to fit well with the air duct 40. On the one hand, this improves heat exchange efficiency; on the other hand, the structure is more compact, facilitating miniaturization.

[0320] It is understood that, in other embodiments, the outline of part of the air duct 40 may also be a concave inner or outer outline of a ring, with the center of the radial section of the housing 10 as the center.

[0321] In one embodiment, the clearance portion includes a second clearance portion 316, the curvature of which differs from that of the first clearance portion 314. This allows the reflector cup 302 to be adapted to other components of the drying equipment 100.

[0322] Specifically, the second clearance portion 316 is located on the side away from the air duct 40 relative to the first clearance portion 314. The second clearance portion 316 can match the shape of the inner wall of the housing 10, further reducing the space occupied by the reflector cup 302 and improving space utilization.

[0323] Specifically, in one example, the second clearance portion 316 may match the shape of the inner wall of the main body. It is understood that the second clearance portion 316 may also match the shape of other components of the drying equipment 100, which is not specifically limited here.

[0324] In one embodiment, the two reflectors 302 of two adjacent radiation sources 30 are connected to form a common portion 317. In this way, the space occupied by multiple radiation sources 30 can be further reduced, and the space utilization rate within the housing 10 can be improved.

[0325] Specifically, in two adjacent radiation sources 30, the two reflectors 302 are connected by a common portion 317. The common portion 317 can be the wall of the reflector 302, that is, the reflectors 302 of the two adjacent radiation sources 30 share a portion of the sidewall. The common portion 317 can be flat to further reduce the space occupied by the two reflectors 302.

[0326] In one embodiment, the radial and axial sections of the reflective surface of the reflector 302 are portions of at least one polynomial curve shape. Specifically, the polynomial curve shape includes shapes such as circles, parabolas, ellipses, and hyperbolas. In one example, the axial section of the reflective surface of the reflector 302 is a portion of at least one parabolic shape, and the radial section of the reflective surface of the reflector 302 is a portion of at least one parabolic shape.

[0327] In one embodiment, the different radial cross sections of the reflective surface of the reflector 302 are non-concentric circles. It is understood that in other embodiments, the different radial cross sections of the reflective surface of the reflector 302 may also be non-concentric ellipses.

[0328] In one embodiment, the radial and axial sections of the reflective surface of the reflector cup 302 are formed by connecting piecewise polynomial curves.

[0329] In one implementation, please refer to Figure 55 and Figure 56 The reflector 302 includes a base 310, and a light-emitting element 304 is connected to the base 310. The base 310 is not located at the apex of the outer wall of the reflector 302, and the light-emitting element 304 is located at the focal point of the reflector 302. In this way, a non-orthogonal installation method of the light-emitting element 304 can be realized.

[0330] The advantages of non-standard installation are: 1) The heat of the clamping position 308 can be directly conducted to exchange heat with the air duct or the air in the air duct, or directly radiated out, which is conducive to heat dissipation; 2) Because the clamping position at the base is relatively long, in order to ensure that the light-emitting element is at the focal point of the reflector, the standard installation often makes the base very long and takes up space. Non-standard installation (such as side installation and inverted installation) can save space and facilitate the miniaturization of drying equipment.

[0331] Specifically, the axial cross-section of the reflective surface (inner wall of the reflector 302) of the reflector 302 can be a polynomial curve shape, and the axial cross-section of the outer wall of the reflector 302 also has this shape. In this shape, the outer wall of the reflector 302 has a vertex. In one embodiment of this application, please refer to... Figure 57 The base is located at the apex of the outer wall of the reflector, which is a formal way of wearing it.

[0332] In the embodiments of this application, the light-emitting element 304 is located at the focal point of the reflector cup 302, that is, the light-emitting element 304 is located at the focal point of the reflective surface of the reflector cup 302.

[0333] The base 310 is not located at the apex of the outer wall of the reflector 302. In one embodiment, please refer to... Figure 55 The base 310 is located on the side wall of the reflector cup 302. This allows for the side-mounting of the light-emitting element 304.

[0334] In one embodiment, the sidewall of the reflector cup 302 is coupled to the duct wall. This allows heat from the light-emitting element 304 to be conducted to the base 310, and the sidewall of the reflector cup 302 exchanges heat with the duct wall, thus providing appropriate heat dissipation for the light-emitting element 304.

[0335] Specifically, the heat from the duct wall can be carried away by the airflow within the duct 40, thereby dissipating heat from the light-emitting element 304.

[0336] The radiation source 30 can be arranged around the airflow outlet of the air duct 40. The side wall of the reflector cup 302 is coupled to the air duct wall. This can be either direct contact between the wall of the reflector cup 302 and the air duct wall, or connection through an additional heat dissipation structure, or the wall of the reflector cup 302 can form part of the air duct wall. For details, please refer to the relevant embodiments of this application. No specific limitations are made here.

[0337] In one embodiment, the sidewall of the reflector cup 302 can be used for heat exchange with the airflow in the air duct 40. In this way, the heat of the light-emitting element 304 can be conducted to the base 310, and the heat exchange between the sidewall of the reflector cup 302 and the airflow in the air duct 40 can provide appropriate heat dissipation for the light-emitting element 304.

[0338] Specifically, the radiation source 30 can be surrounded by the air duct 40. In this way, the side wall of the reflector cup 302 will be blown by the airflow in the air duct 40, thereby carrying away the heat of the light-emitting element 304. For details, please refer to the relevant embodiments of this application, which are not specifically limited here.

[0339] The base 310 is not located at the apex of the outer wall of the reflector 302. In one embodiment, please refer to... Figure 56 The light-emitting element 304 is located at the opening of the reflector cup 302. This allows for the inverted installation of the light-emitting element 304.

[0340] Specifically, a connector 318 can be provided at the opening of the reflector 302, and the light-emitting element 304 is mounted on the connector 318. The light-emitting element 304 is directly opposite the apex of the reflector 302.

[0341] In one embodiment, the wall at the opening of the reflector cup 302 has a groove that can accommodate the lamp base of the light-emitting element 304 or the wire connected to the lamp base of the light-emitting element 304. Specifically, the lamp base of the light-emitting element 304 or the wire connected to the lamp base of the light-emitting element 304 can be led into the groove through the connector 318.

[0342] In one embodiment, the base 310 has an opening that accommodates the lamp base of the light-emitting element 304 or the wire connected to the lamp base of the light-emitting element 304. Thus, the lamp base of the light-emitting element 304 or the wire connected to the lamp base of the light-emitting element 304 can pass through the base 310 and can pass through the connector 318 to connect to an external power source.

[0343] In one embodiment, the opening is sealed with an insulating, heat-insulating, and opaque material. This reduces the leakage of infrared radiation, thereby improving drying efficiency.

[0344] It is understood that the different parts described in the above embodiments of this application can be combined without contradiction. For example, radiation sources with different configurations, air ducts with different shapes, different installation positions of batteries and motors, different heat dissipation structures, and different installation methods of internal components of radiation sources can be freely combined and replaced. This application does not make specific limitations in this regard, and will not give examples in detail here.

[0345] In summary, the drying equipment 100 of the above embodiments has, but is not limited to, the following technical effects:

[0346] Compared to traditional drying equipment 100 (such as the reflector cup 302 whose entire outer wall is directly in the air duct 40), which generates excessive heat and affects radiation efficiency, excessive heat dissipation means that the light-emitting element 304 needs to convert additional electrical energy into heat energy to maintain the temperature necessary for generating blackbody radiation. The configuration of the drying equipment 100 in this embodiment can appropriately reduce the temperature of the radiation source 30, extend the service life of the light-emitting element 304, and at the same time avoid lowering the temperature too much, resulting in wasted electrical energy (more electrical energy is used to maintain the temperature for blackbody radiation).

[0347] The excess heat from the radiation source is carried away by the wind, raising the wind temperature by a few degrees (1-5 degrees). Although this is not enough to have a decisive impact on drying hair, it improves the feeling of the wind blowing on the body, so that people do not feel cold and improve the user experience.

[0348] The infrared radiation from each radiation source 30 can be used to dry the target object, so that multiple radiation sources 30 can provide the target object with a suitable amount of radiation, while avoiding the problem of excessively high operating temperature of a single radiation source.

[0349] In addition, the heat dissipation structure 80 enables the heat generated by the radiation source 30 during operation to be quickly transferred to other components of the drying equipment, thereby allowing the radiation source 30 to operate at a suitable temperature to further ensure its service life.

[0350] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0351] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A drying device, characterized in that, include: A housing, wherein an air duct is provided inside the housing; An electric motor, located within the housing, is used to generate airflow in the air duct; A radiation source, housed within the housing, is used to generate infrared radiation and direct the infrared radiation to the outside of the housing; A heat dissipation structure is provided, through which the radiation source transfers heat, and the heat dissipation structure is disposed between the radiation source and other components of the drying equipment; The radiation sources are multiple, and the multiple radiation sources are configured such that the infrared radiation generated by the multiple radiation sources forms at least one light spot at a certain distance from the airflow outlet of the air duct. The radiation source includes: The first part is located outside the air duct, so that the first part will not be directly blown by the airflow in the air duct; The second part connects to the first part and exchanges heat with the air duct.

2. The drying equipment according to claim 1, characterized in that, The radiation source and the air duct are fixed inside the housing.

3. The drying equipment according to claim 1, characterized in that, The radiation source includes a reflector cup and a light-emitting element. The light-emitting element is located inside the reflector cup. The first part includes a portion of the outer wall of the reflector cup, and the second part includes another portion of the outer wall of the reflector cup. The axial cross-section of the reflective surface of the reflector cup is in the shape of a polynomial curve, and the light-emitting element is disposed at the focal point of the reflective surface of the reflector cup.

4. The drying equipment according to claim 3, characterized in that, The drying equipment includes an optical element that seals the opening of the reflector cup. The plurality of radiation sources share the same optical element, or each of the radiation sources has an optical element, or some of the radiation sources share the same optical element, and each of the remaining radiation sources has an optical element.

5. The drying equipment according to claim 3, characterized in that, The reflector cup includes a base, the light-emitting element is connected to the base, and the base is not located at the apex of the outer wall of the reflector cup.

6. The drying equipment according to claim 3, characterized in that, The second part is in direct contact with the outer wall of the air duct, or in contact with the air duct through the heat dissipation structure to exchange heat.

7. The drying equipment according to claim 1, characterized in that, The radiation source is located between the air duct and the housing, all of the radiation sources are located outside the air duct, and multiple radiation sources are arranged around the airflow outlet of the air duct.

8. The drying equipment according to claim 1, characterized in that, The heat dissipation structure includes a contact portion between the radiation source and the wall of the air duct, and the cross-sectional shape of the contact portion is the same as the contacted portion of the wall of the air duct.

9. The drying equipment according to claim 1, characterized in that, The heat dissipation structure is disposed between the radiation source and the air duct, a part of the heat dissipation structure is located inside the air duct, the part of the heat dissipation structure is formed as a first air guide, the first air guide is integrally connected with a second air guide inside the air duct, and the second air guide is located at the airflow outlet of the air duct.

10. The drying equipment according to claim 1, characterized in that, The optical axes of the multiple radiation sources converge to a predetermined position away from the drying equipment.

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