WO2021227960A1

WO2021227960A1 - Drying device

Info

Publication number: WO2021227960A1
Application number: PCT/CN2021/092185
Authority: WO
Inventors: 王铭钰; 唐尹; 徐兴旺; 张蕾
Original assignee: 深圳汝原科技有限公司
Priority date: 2020-05-09
Filing date: 2021-05-07
Publication date: 2021-11-18
Also published as: CN213962188U; WO2021227957A1; WO2021226749A1; WO2021227963A1; WO2021227165A1; CN113615952A; WO2021227675A1; EP4146037A4; EP4146037A1; CN113615953A; WO2021227961A1; WO2021227962A1; EP4132319A1; EP4132319A4

Abstract

A drying device (100), comprising: a housing (10), a motor (20), a radiation source (30), and a heat dissipation structure (80). The housing (10) is internally provided with an air duct (40); the motor (20) is located inside the housing (10) and is configured to produce airflow in the air duct (40); the radiation source (30) is accommodated in the housing (10) and is configured to generate infrared radiation and guide the infrared radiation to the outside of the housing (10); the radiation source (30) transfers heat by means of the heat dissipation structure (80); and the heat dissipation structure (80) is disposed between the radiation source (30) and other components of the drying device (100).

Description

Drying equipment

Priority information

This application requests the priority and rights of the patent application filed with the State Intellectual Property Office of China on May 9, 2020, and the patent application number is PCT/CN2020/089408, and requests that the patent application filed with the State Intellectual Property Office of China on June 9, 2020 The priority and rights of the patent application with the patent application number PCT/CN2020/095146, and the request for the priority and rights of the patent application with the patent application number PCT/CN2021/082835 filed with the State Intellectual Property Office of China on March 24, 2021 , And its full text is incorporated here by reference.

Technical field

This application relates to the field of drying technology, in particular to a drying equipment.

Background technique

At present, there are hair dryers capable of emitting infrared radiation to dry hair, and the hair dryer has a radiation source for emitting infrared radiation. When the radiation source is working, it needs to be kept at a suitable working temperature to maintain a better working condition and prolong its service life. Therefore, it is necessary to provide a heat dissipation solution for the radiation source.

Summary of the invention

The embodiment of the present application provides a drying device.

A drying device according to the embodiment of the present application includes:

A housing, in which an air duct is provided;

A motor located in the housing and used to generate airflow in the air duct;

A radiation source, housed in the housing and used to generate infrared radiation and guide the infrared radiation to the outside of the housing,

A heat dissipation structure, the radiation source transfers heat through the heat dissipation structure, and the heat dissipation structure is arranged between the radiation source and other components of the drying device.

The above-mentioned drying equipment, through the heat dissipation structure, enables the heat generated by the radiation source during operation to be transferred to other parts of the drying equipment, thereby enabling the radiation source to work at a suitable temperature and ensure its service life.

The additional aspects and advantages of the present application will be partly given in the following description, and part of them will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above-mentioned and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic diagram of the structure of a drying device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a part of the structure of a drying device according to an embodiment of the present application;

3A-3D are schematic diagrams of the relationship between the radiation source and the air duct of the drying device of the embodiment of the present application;

4 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

5A-5D are schematic diagrams of another relationship between the radiation source and the air duct of the drying device in the embodiment of the present application;

FIG. 6 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

7A-7D are schematic diagrams of another relationship between the radiation source and the air duct of the drying device according to the embodiment of the present application.

FIG. 8 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

9A-9D are schematic diagrams of another relationship between the radiation source and the air duct of the drying device according to the embodiment of the present application;

FIG. 10 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

11A-11D is another schematic diagram of the relationship between the radiation source and the air duct of the drying device according to the embodiment of the present application;

FIG. 12 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

13A-13B are schematic diagrams of another relationship between the radiation source and the air duct of the drying device according to the embodiment of the present application;

FIG. 14 is a schematic diagram of another part of the structure of the drying equipment according to the embodiment of the present application;

FIG. 15 is a schematic perspective view of a part of the structure of a drying device according to an embodiment of the present application;

FIG. 16 is a three-dimensional schematic diagram of the radiation source of the drying device according to the embodiment of the present application;

Fig. 17 is a schematic partial cross-sectional view of a drying device according to an embodiment of the present application;

18A-41D are schematic diagrams of the relationship between the radiation source and the air duct of the drying device according to the embodiment of the present application;

42A-42B are schematic diagrams of the relationship between the radiation source and the optical element of the embodiment of the present application.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following embodiments described with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation to the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be understood as a restriction on this application. In the description of the present application, "multiple" means two or more than two, unless otherwise specifically defined.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connect, or connect in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the "on" or "under" of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them. Moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature. The “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

The disclosure herein provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described herein. Of course, they are only examples, and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

The embodiment of the present application provides a drying device. The drying device of the present application can remove water and moisture from objects (for example, hair, fabric) by using infrared (IR) radiation sources as thermal energy sources. The infrared radiation source can emit infrared energy with a preset wavelength range and power density to heat the object. The heat carried by infrared energy is directly transferred to the object in the form of radiant heat transfer, so that compared with the traditional convection heat transfer method, the heat transfer efficiency is improved (for example, basically no heat is transferred by the surrounding air in the form of radiant heat transfer). Absorption, while a large part of the heat in the traditional heat conduction method is absorbed by the surrounding air and then taken away). The infrared radiation source can be used in combination with a motor, and the air flow generated by the motor further accelerates the evaporation of water from the object.

Another advantage of using infrared radiation as a thermal energy source is that infrared heat can penetrate the hair shaft to the outer layer of the hair, so the hair dries faster, and it makes the hair loose and soft. 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 can also make the drying equipment compact and light. The improved heat transfer efficiency and energy efficiency of infrared radiation sources can also extend the operating time of wireless drying equipment powered by embedded batteries.

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

The housing 10 may include a body 102 and a handle 104, and each of the body 102 and the handle 104 may house at least a part of electrical, mechanical, and electromechanical components therein. In some embodiments, the body 102 and the handle 104 may be integrally connected. In some embodiments, the body 102 and the handle 104 may be separate components. For example, the handle 104 can be detached from the body 102. In one example, the detachable handle 104 may contain a power source (such as one or more batteries) for powering the drying device 100 therein. The housing 10 may be made of an electrically insulating material. Examples of electrical insulating materials may include polyvinyl chloride (PVC), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene copolymer (ABS), polyester, polyolefin, polystyrene Ethylene, polyurethane, thermoplastics, silicone, glass, fiberglass, resin, rubber, ceramics, nylon and wood. The housing 10 may also be made of a metal material coated with an electrically insulating material, or a combination of an electrically insulating material and a metal material coated or not coated with an electrically insulating material. For example, an electrically insulating material may constitute the inner layer of the casing 10, and a metal material may constitute the outer layer of the casing 10. In an example, the handle 104 is also provided with an input component 106, which can be used for the user to operate the drying device, such as switching the drying device, adjusting the motor speed, and the power of the radiation source. The input component 106 may include at least one of a physical button, a virtual button, and a touch screen. In other embodiments, the drying device can also omit the input component, and the drying device can be controlled through a terminal communicating with the drying device. The terminal can include, but is not limited to, a mobile phone, a tablet computer, a wearable smart device, a personal computer, and the like.

The housing 10 may be provided with one or more air ducts 40 inside, and the air ducts 40 may be fixed in the housing 10 so that the airflow generated by the motor 20 can flow stably and avoid unexpected airflow disturbances. The air flow generated by the motor 20 can be guided or adjusted through the air duct and toward the user's hair. For example, the air duct 40 may be shaped to at least adjust the speed, throughput, divergence angle, or vortex intensity of the airflow leaving the drying device 100. The air duct 40 may include an air flow inlet 402 and an air flow outlet 404. In an example, the airflow inlet 402 and the airflow outlet 404 may be placed at opposite ends of the drying device 100 along the longitudinal direction of the drying device 100 (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 effective airflow throughput. The ambient air may be drawn into the air duct 40 through the air flow inlet 402 to generate air flow, and the generated air flow may leave the air duct 40 through the air flow 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, which is not limited here. The air inlet 402 can also be provided in the handle 104 or the handle 104 and the body 102.

The cross-sectional shape of the air flow outlet 404 can be any shape, preferably a circle, an ellipse, a rectangle (rectangle), a square, or various variations of a circle and a quadrilateral, such as a quadrilateral with rounded corners. There is no specific limitation here.

In an example, an air duct 40 is provided in the main body 102, and the air duct 40 is substantially cylindrical. It can be understood that in other embodiments, the air duct 40 may also have other shapes, such as a funnel shape, a Y shape, and other regular or irregular shapes, which are not specifically limited herein.

In one embodiment, one or more air filters (not shown) may be provided at the air inlet 402 to prevent dust or hair from entering the air duct 40. For example, the air filter may be a mesh with an appropriate mesh size. The air filter can be detachable or replaceable for cleaning and maintenance. In one embodiment, an airflow regulator (not shown) may be provided at the airflow outlet 404. The airflow regulator can be a detachable nozzle, comb or crimper. The airflow regulator may be configured to adjust the speed, throughput, divergence angle, or vortex intensity of the airflow blown from the airflow outlet 404. For example, the airflow regulator may be shaped to converge (eg concentrate) the airflow at a predetermined distance from the front of the airflow outlet 404. For example, the airflow regulator may be shaped to diverge the airflow leaving the airflow outlet 404.

In one embodiment, since the housing 10 is provided with a radiation source 30 for generating infrared radiation, there may be no additional heating equipment in the housing 10. On the one hand, the radiation power of the radiation source 30 can be adjusted to To achieve the desired drying effect, on the other hand, the miniaturization of the drying device 100 can be achieved without additional heating equipment, thereby improving the portability of the drying device 100. Without additional heating equipment, the energy consumption of the drying device 100 can be lower. In this way, the battery life of the drying device 100 can be increased. In some embodiments, the heating device includes an electric heating wire (such as a resistance wire).

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

1 and FIG. 2 show that the motor 20 is provided in the body 102. It is understood that in other embodiments, the motor 20 may also be provided in the handle 104. For example, the rotation of the impeller 204 can draw air into the air flow inlet 402 provided at the handle 104 and push the air through the air duct 40 to the air flow outlet 404 provided at one end of the body 102. The air duct 40 may correspondingly extend through the handle 104 and the body 102 of the housing 10.

In one embodiment, the passing frequency of the fan blades of the motor 20 is close to the frequency range of ultrasonic waves. The fan blade passing frequency can be expressed as the product of the motor speed and the number of fan blades of the motor 20. The passing frequency of the fan blades of the motor 20 is close to the ultrasonic frequency range. It can be understood that the passing frequency of the fan blades is within the frequency range of the ultrasonic wave, or the passing frequency of the fan blade is the upper or lower limit of the frequency range of the ultrasonic wave, or the passing frequency of the fan blade and the frequency range of the ultrasonic wave. The difference between the upper limit or the lower limit of the frequency range of the ultrasonic wave is smaller than the preset value. In an example, the unit of rotation speed of the motor 20 is rps (revolutions per second), and the passing frequency of the fan blades is greater than or equal to 15KHz.

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

In the example of FIG. 1, a part of the radiation source 30 is located outside the air duct 40, and the other part can exchange heat with the air duct 40. For example, the radiation source 30 may include a reflector 302, and a part of the outer wall of the reflector 302 (such as the windward side) is located Outside the air duct 40, this part is not blown by the airflow of the air duct 40, and the heat exchange between this part and the air duct 40 is small. On the one hand, it can properly dissipate the radiation source 30, and on the other hand, it can also Keeping the radiation source 30 at a proper working temperature when working can improve the evaporation efficiency of the water on the object.

In one embodiment, the rotation speed of the motor 20 is greater than or equal to 50,000 rpm (revolutions per minute). In other words, the motor speed is at least 50,000 revolutions per minute. In this way, by using the high-speed motor 20 (the rotation speed of the motor 20 is greater than or equal to 50,000 rpm), while generating sufficient air volume, the radiation source 30 can also be properly dissipated.

Specifically, in the prior art, due to the use of a low-speed motor, in order to effectively dissipate a single high-power radiation source, the radiation source is usually placed directly in the air duct as a whole, for example, the entire outer wall of the reflector cup of the radiation source ( That is, the entire windward side) is directly blown by the airflow of the air duct to take away the heat of the radiation source. However, the disadvantages of this kind of drying equipment are 1) the length of the body along the axial direction of the air duct (such as the horizontal direction) is longer (large size), because a) the reflector of the radiation source is generally parabolic and relatively long; b) ionizing radiation The temperature near the air outlet is extremely high, and isolation devices need to be installed to prevent burns and accidents. 2) The shape of the radiation source in the air duct 40 (such as the shape of the outer wall of the reflector) will affect the airflow, such as wind resistance, wind noise, change of the direction of the airflow, etc., and ultimately loss of wind energy.

In the embodiment of this application, the object will radiate in the infrared to visible wavelength range in the form of heat transfer. This heat transfer is called black body radiation. Blackbody radiation is broadband radiation. The center wavelength and spectral bandwidth decrease with increasing temperature. The total energy is ^{proportional to S×T 4} , where S is the surface area and T is the temperature. Given the working temperature required for the blackbody radiation of the radiation source 30 and the air volume of the high-speed motor 20 (measured by Cubic per Minute/CPM), the heat dissipation efficiency can be deduced, and then the heat dissipation area required by the radiation source 30 can be deduced. This heat dissipation area is smaller than the heat dissipation area where the entire radiation source 30 is placed in the air duct 40 in the prior art. Therefore, a part of the radiation source 30 in the embodiment of the present application may be located outside the air duct 40 without being directly blown by the air flow of the air duct 40 , It can also make it possible to keep the radiation source 30 at a suitable working temperature even when a single high-power radiation source 30 is used. At the same time, since a part of the radiation source 30 is located outside the air duct 40, the radiation source 30 can be structurally The offset along the radial direction (such as the vertical direction) of the air duct 40 can reduce the length of the body 102, and the shape of the radiation source 30 also reduces the adverse effect of the airflow.

In one embodiment, the motor 20 is fixed in the housing 10 by a shock absorber (not shown). In this way, it is possible to reduce or prevent the vibration generated by the motor 20 from being transmitted to the housing 10, thereby avoiding trouble to the user in use.

Specifically, the shock absorption device may include an elastic member, and the vibration generated during the operation of the motor 20 can be absorbed by the elastic member to reduce the transmission of vibration.

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

In one embodiment, the shock absorbing device includes a sleeve formed of an elastic material, and the sleeve includes a clamping portion flexibly coupled with at least one of the housing 10, the air duct 40 and the radiation source 30 extending around the sleeve. In this way, through the flexible coupling clip part, the vibration transmission is reduced.

Specifically, the sleeve may be sleeved outside the driving part 202 of the motor 20, the clamping part may be arranged on the outer surface of the sleeve, and the clamping part may be formed into multiple (two or more) along the sleeve The circumferential direction is evenly spaced to reduce vibration transmission evenly. Of course, the clamping portion can also be formed as a single clamping portion, and the single clamping portion is annularly arranged on the outer surface of the sleeve.

The sleeve includes a clamping portion flexibly coupled with at least one of the housing 10, the air duct 40, and the radiation source 30 extending around the sleeve. The clamping portion may be that the sleeve includes a clamping portion that extends around the sleeve and is flexibly coupled to the air duct 40. It may be that the sleeve includes a clamping portion that extends around the sleeve and is flexibly coupled to the radiation source 30. It may be , The sleeve includes a clamping portion extending around the sleeve that is flexibly coupled with the housing 10 and the air duct 40, so the sleeve includes a clamping portion extending around the sleeve that is flexibly coupled with the air duct 40 and the radiation source 30 It may be that the sleeve includes a clamping portion flexibly coupled with the housing 10 and the radiation source 30 extending around the sleeve, or it may be that the sleeve includes the housing 10, the air duct 40 and the radiation source extending around the sleeve. 30 Flexible coupling card connection part.

In one embodiment, the clamping portion is a protrusion formed of a rubber material. In this way, the bumps are easy to connect, and the bumps formed by the rubber material are also easy to shape, and the shock absorption effect is better.

In one embodiment, the radiation source 30 is housed in the housing 10 and used to generate infrared radiation and guide 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.

The number of radiation sources 30 may be single or multiple (two or more than two). When the number of the radiation source 30 is plural, the radiation source 30 is configured such that the radiation from the radiation source 30 forms a light spot at a certain distance outside the side of the opening of the radiation source 30. In this way, the infrared radiation intensity in the spot area is relatively high, and the object can be effectively dried. It can be understood that the single radiation source 30 may also be configured to make the radiation from the radiation source 30 form a light spot at a certain distance outside the side of the opening of the radiation source 30.

Specifically, by adjusting the opening direction of the radiation source 30, the multiple radiation sources 30 form a light spot at a certain distance from the outside of the drying device 100. The light spot may be a circular light spot, and the diameter of the circular light spot may be 10 cm. In an example, the certain distance may be 10 cm.

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

Specifically, referring to FIG. 1, the radiation source 30 is located on the left side of the drying device 100 as a whole, and the motor 20 is located on the right side of the drying device 100. When the motor 20 works, air is drawn from the outside environment on the right side of the drying device 100. And a faster airflow is output from the left side of the motor 20, and the airflow flows to the radiation source 30. The faster airflow can improve the heat exchange efficiency between the second part and the air duct 40.

In one embodiment, during operation, the radiation source 30 is located between the air duct 40 and the housing 10. In this way, a configuration of the drying device 100 can be realized, as shown in FIG. 1.

Specifically, when working, 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 is turned on and the motor 20 is turned off, the radiation source 30 is turned off and the motor 20 is turned on, and the radiation source 30 is turned on and the motor 20 is turned on. .

In one embodiment, the radiation source 30 may be fixed in the housing 10, that is, the radiation source 30 is located between the air duct 40 and the housing 10 regardless of whether the drying device 100 is in operation or not in operation. Moreover, the radiation source 30 is not located in the air duct 40 at all. In one embodiment, the radiation source 30 is movably disposed in the housing 10, for example, by adding a movable structure to adjust the position of the radiation source 30, so that the drying device 100 drives the radiation source 30 to the air duct 40 when the drying device 100 is working. When the drying device 100 is not in operation, the radiation source 30 is moved to other positions, for example, to the air duct 40 or other positions in the housing 10 that are convenient for storage. In one embodiment, the structure may be moved to adjust the position of the air duct 40, or the structure may be moved to adjust the positions of the air duct 40 and the radiation source 30. There is no specific limitation here.

In one embodiment, all radiation sources 30 are located outside the air duct 40. The number of radiation sources 30 may include multiple, and all the radiation sources 30 are located outside the air duct 40, so that the air flow resistance generated by the air duct 40 during operation is small, which helps to reduce wind noise and wind resistance.

Specifically, there is no radiation source 30 in the air duct 40, which has little effect on the wind speed and volume of the wind, and no additional wind noise is generated. The wind speed and air volume have a great influence on the blowing speed. In particular, when the drying device 100 is used for drying hair, since the drying device 100 is close to the ear during the hair blowing process, the low noise can improve the user experience.

In an embodiment, the radiation source 30 may be arranged in the circumferential direction of the air duct 40 close to the air flow outlet 404 of the air duct 40. In this way, on the one hand, when the wind flows out of the air outlet 404, part of the heat of the radiation source 30 is taken away by the wind, so that the temperature of the wind rises by a few degrees (1 to 5 degrees), although it is not enough to cause the object to be dried (such as dry hair). It has a decisive impact, but it enhances the body feel of people after the wind blows on the human body, so that people will not feel being blown by the cold wind, which improves the user experience. On the other hand, the infrared radiation emitted by the radiation source 30 is basically not blocked by the air duct 40, which is beneficial to improve the drying efficiency.

In one embodiment, the radiation source 30 is arranged around the air flow outlet 404 of the air duct 40. In the examples of FIGS. 2 and 3A-3D, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 is circular or approximately circular. In the example of FIG. 3A, the number of radiation sources 30 is two, and the two radiation sources 30 are arranged at an interval of 180 degrees around the airflow outlet 404 of the air duct 40. In the example of FIG. 3B, the number of radiation sources 30 is three, and the three radiation sources 30 are arranged around the airflow outlets 404 of the air duct 40 at intervals of 120 degrees. In the example of FIG. 3C, the number of radiation sources 30 is four, and the four radiation sources 30 are arranged around the airflow outlets 404 of the air duct 40 at intervals of 90 degrees. In the example of FIG. 3D, the number of radiation sources 30 is five, and the five radiation sources 30 are arranged around the airflow outlets 404 of the air duct 40 at an interval of 72 degrees. It can be understood that the number of radiation sources 30 can also be more than five, and they are arranged around the airflow outlets 404 of the air duct 40 at even intervals along the circumference of the air duct 40. In addition, in other embodiments, among the multiple radiation sources 30, the angle of the interval between two adjacent radiation sources 30 may be different. There is no specific limitation here. In the examples of FIGS. 4 and 5A-5D, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 is a circular ring or a sector. In the example of FIG. 5A, the number of the radiation source 30 is single, and the single radiation source 30 has a circular ring shape and is arranged 360 degrees around the airflow outlet 404 of the air duct 40 along the circumferential direction of the air duct 40. In the example of FIG. 5B, the number of radiation sources 30 is two, and each radiation source 30 is basically a fan shape of 180 degrees, and each radiation source 30 is approximately 180 degrees around the airflow outlet 404 of the air duct 40 in the circumferential direction of the air duct 40. Arrangement, the two radiation sources 30 are arranged in a substantially circular ring shape. In the example of FIG. 5C, the number of radiation sources 30 is three, and each radiation source 30 is basically a fan shape of 120 degrees, and each radiation source 30 is approximately 120 degrees in the circumferential direction of the air duct 40 and surrounds the air flow outlet 404 of the air duct 40. Arrangement, the three radiation sources 30 are arranged in a substantially circular ring shape. In the example of FIG. 5D, the number of radiation sources 30 is four, and each radiation source 30 is basically a 90-degree fan shape, and each radiation source 30 is approximately 90 degrees in the circumferential direction of the air duct 40 and surrounds the airflow outlet 404 of the air duct 40. Arrangement, the four radiation sources 30 are arranged in a substantially circular ring shape. It can be understood that the number of radiation sources 30 may also be more than four, and they are arranged around the airflow outlets 404 of the air duct 40 at even intervals along the circumference of the air duct 40. In addition, in other embodiments, among the multiple radiation sources 30, the fan-shaped arc of each radiation source 30 may be different. There is no specific limitation here.

In one embodiment, the radiation source 30 is arranged on one side of the air flow outlet 404 of the air duct 40. In the examples of FIGS. 6 and 7A-7D, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 is circular or approximately circular. In the example of FIG. 7A, the number of the radiation source 30 is single, and the single radiation source 30 is arranged on the lower half of the air flow outlet 404 of the air duct 40. In the example of FIG. 7B, the number of radiation sources 30 is two, and the two radiation sources 30 are arranged on the lower half of the airflow outlet 404 of the air duct 40. In the example of FIG. 7C, the number of radiation sources 30 is three, and the three radiation sources 30 are arranged on the lower half of the airflow outlet 404 of the air duct 40. In the example of FIG. 7D, the number of radiation sources 30 is four, and the four radiation sources 30 are arranged on the lower half of the air flow outlet 404 of the air duct 40. It can be understood that the number of radiation sources 30 can also be more than five, which are arranged on the lower half of the airflow outlet 404 of the air duct 40. In addition, in other embodiments, the radiation source 30 can also be arranged on the upper half, the left half, the right half, the upper left half, the lower left half, the upper right half, and the lower right half, which are not specifically limited here. In other embodiments, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 may be circular or fan-shaped.

In other embodiments, any combination of the circular radiation source 30, the circular radiation source 30, and the fan-shaped radiation source 30 may be dispersedly arranged on the side of the airflow outlet 404 of the air duct 40, or around the air duct. The airflow outlet 404 of 40 is arranged.

In one embodiment, the second part and the air duct 40 are integrally formed and connected. In this way, the heat exchange efficiency between the second part and the air duct 40 can be made high.

Specifically, the radiation source 30 may include a reflector cup 302, the second part may be a part of the outer wall of the reflector cup 302 or a part of the base 310 of the reflector cup 302, and the reflector cup 302 may be integrally connected with the air duct 40. The injection molding process can be used to realize the integral forming connection, and the welding process can also be adopted to realize the integral forming connection. There is no specific limitation here. The outer wall of the reflector cup 302 and the air duct 40 form a joint at the air outlet 404. At the joint, the inhaled wind exchanges heat with the reflector cup 302. The temperature of the wind will increase by about 1 to 5 degrees and then blow out, although it is not enough. It has a decisive influence on the dried object (such as dry hair), but it improves the body feeling of the person after the wind blows on the human body, so that people will not feel being blown by the cold wind, which improves the user experience.

In one embodiment, the radiation source 30 is surrounded by the air duct 40, and the radiation source 30 is not entirely located in the air duct 40. In this way, another configuration of the drying device 100 can be realized, as shown in FIG. 8.

Specifically, the radiation source 30 can be placed in the air duct 40, and the first part of the radiation source 30 can be shielded by the shielding member, so that the first part will not be blown by the airflow in the air duct 40. For example, the first part can include reflective light. A part of the outer wall of the cup 302 can be shielded so that the part will not be blown by the airflow in the air duct 40. A part of the outer wall of the reflector cup 302 that is not blocked can be used as the second part, and the airflow in the air duct 40 can be blown to the second part, so that the second part and the air duct 40 can exchange heat.

In the examples of FIGS. 8 and 9A-9D, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 is circular or approximately circular. In the example of FIG. 9A, the number of the radiation source 30 is single, and the single radiation source 30 is arranged in the air duct 40. In the example of FIG. 9B, the number of radiation sources 30 is two, and the two radiation sources 30 are arranged in the air duct 40 radially along the air duct 40. In the example of FIG. 9C, the number of radiation sources 30 is three, and the three radiation sources 30 are scattered in the air duct 40 in a triangular shape. In the example of FIG. 9D, the number of radiation sources 30 is four, and the four radiation sources 30 are scattered and arranged in the air duct 40 in a square shape. It can be understood that the number of radiation sources 30 can also be more than four, which are scattered in the air duct 40. There is no specific limitation here.

In the examples of FIGS. 10 and 11A-11D, the shape of the radiation source 30 along a plane perpendicular to the axial direction of the air duct 40 is a circular ring or a sector. In the example of FIG. 11A, the number of radiation sources 30 is two, and each radiation source 30 has a circular ring shape, and the two radiation sources 30 are arranged concentrically in the air duct 40, thereby forming a two-layer ring-shaped radiation source 30 . In the example of FIG. 11B, the number of radiation sources 30 is two, each radiation source 30 is substantially in a 180-degree fan shape, and the two radiation sources 30 are arranged in a substantially circular ring shape. In the example of FIG. 11C, the number of radiation sources 30 is three, each radiation source 30 is substantially in a 120-degree sector shape, and the three radiation sources 30 are arranged in a substantially circular ring shape. In the example of FIG. 11D, the number of radiation sources 30 is four, each radiation source 30 is substantially in a 90-degree sector, and the four radiation sources 30 are arranged in a substantially circular ring shape. It can be understood that the number of radiation sources 30 may also be single or more than four, which are scattered in the air duct 40. In addition, in other embodiments, among the multiple radiation sources 30, the fan-shaped arc of each radiation source 30 may be different. There is no specific limitation here.

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

In one embodiment, the number of radiation sources 30 is multiple, and the multiple radiation sources 30 are dispersedly arranged in the air duct 40.

In this way, the multiple radiation sources 30 dispersedly arranged in the air duct 40 can prevent the occurrence of local overheating of the radiation source 30 or the air duct 40 due to excessive heat concentration.

Specifically, referring to FIG. 12 and FIG. 13A, one air duct 40 is provided with an air flow outlet 404, and the plurality of radiation sources 30 that are dispersedly arranged may be placed in the air flow outlet 404 of the air duct 40 in a star shape.

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

Specifically, one air duct 40 may be provided with a plurality of airflow outlets 404, and the plurality of radiation sources 30 dispersedly arranged may be placed in the air duct 40 in a star shape. It may also be that there are multiple air ducts 40, and each air duct 40 is provided with an airflow outlet 404. The plurality of airflow outlets 404 may be embedded in the gaps of the plurality of radiation sources 30 in a star shape. It may also be a mixed arrangement of the above two, which is not specifically limited here.

In one embodiment, referring to FIG. 8, FIG. 10 and FIG. 12, the drying device 100 further includes a spacer 50, and the spacer 50 is disposed in the air duct 40. In this way, a part of the radiation source 30 can be shielded by the spacer 50, and the shielded part of the radiation source 30 is not blown by the airflow in the air duct 40. This part can be regarded as the first part, and this part can be regarded as located in the air duct. 40 outside.

Specifically, the spacer 50 can accommodate the radiation source 30. In an example, the shielded part of the radiation source 30 may be at least one of a part of the outer wall of the reflector cup 302 and the base 310 of the reflector cup 302. The outer wall of the spacer 50 may be arranged in the form of a wind guide. For example, the outer wall of the spacer 50 is arranged in a streamlined shape to reduce wind noise and wind resistance. Further, a heat sink (not shown in the figure) is provided on the outer wall of the spacer 50. In this way, the heat dissipation efficiency can be accelerated. Specifically, the heat sink may include one or any combination of heat dissipation fins, heat dissipation air ducts, heat pipes, and heat dissipation plates.

In one embodiment, the partition 50 is provided at the air flow outlet 404 of the air duct 40. In this way, the partition 50 provided at the airflow outlet 404 has less adverse effect on the airflow in the air duct 40.

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

Specifically, the way of coupling may be a detachable connection or a fixed connection.

In one embodiment, the airflow flows in the channel formed by the inner wall of the air duct 40 and the outer wall of the partition 50. In this way, the airflow can flow out of the drying device 100 through the channel, and can take away the heat of the spacer 50.

Specifically, the spacer 50 may absorb the heat generated when the radiation source 30 is in operation and increase the temperature. When the airflow passes through the channel, the spacer 50 can be dissipated, and the service life of the spacer 50 is ensured.

In one embodiment, a part of the radiation source 30 is contained in the partition 50. In this way, the spacer 50 can shield a part of the radiation source 30 to avoid being blown by the airflow in the air duct 40.

Specifically, the radiation source 30 may include a reflector cup 302, and a part of the outer wall of the reflector cup 302 may be contained in the spacer 50. This part may be used as the first part to prevent the radiation source 30 from being blown directly by the airflow of the air duct 40. Excessive emission can ensure that the radiation source 30 is maintained at a proper working temperature during operation.

In one embodiment, the radiation source 30 is in coplanar contact with the spacer 50. In this way, the adverse effect of the connection between the radiation source 30 and the spacer 50 on the airflow can be reduced.

Specifically, the coplanar contact can make the connection between the radiation source 30 and the spacer 50 have a smooth transition. When the air flows through the connection, it can flow smoothly, reducing wind noise and wind resistance. In one example, the connection may form a streamlined surface.

In one embodiment, referring to FIGS. 8, 10 and 12, the inner wall of the spacer 50 and the outer wall of the radiation source 30 enclose a cavity 60, and the first part includes the outer wall portion of the radiation source 30 enclosing the cavity 60. Specifically, the outer wall part of the radiation source 30 may be a part of the outer wall of the reflector cup 302, or a base 310 of the reflector cup 302, or a part of the base 310, or include a part of the outer wall of the reflector cup 302 and the reflector cup 302 base 310, or It includes a part of the outer wall of the reflector cup 302 and a part of the base 310 of the reflector cup 302. In other words, the outer wall portion of the radiation source 30 that encloses the cavity 60 is blocked by the spacer 50, so that the airflow of the air duct 40 cannot blow directly.

In one embodiment, via the spacer 50, the air duct 40 exchanges heat with the radiation source 30 through at least one of heat conduction and heat convection. In this way, the heat of the radiation source 30 can be properly dissipated, and the temperature during operation will not be too high or too low.

In one embodiment, the drying device 100 further includes a control board (not shown in the figure), and the control board is arranged in the partition 50. In this way, the space in the housing 10 can be fully utilized, and the structure of the drying device 100 can be made compact.

Specifically, the control board may be placed in the cavity 60, and the control board may include a circuit board and various components mounted on the circuit board, such as a processor, a controller, a power supply, a switch circuit, a detection circuit, and the like. The control board can be electrically connected to the radiation source 30 and the motor 20, and other electrical components, such as lights, indicator lights, sensors, etc. The control board is used to control the operation of the drying device 100, including but not limited to controlling the operation mode of the drying device 100, the length of operation, the rotation speed of the motor, the power of the radiation source 30, and so on.

In one embodiment, the drying device 100 includes a power source, a part of the power source is disposed in the isolator 50, and the power source is electrically connected to at least one of the radiation source 30 and the control board. In this way, the heat of the power supply can be dissipated through the isolator 50, and the power supply can supply power to at least one of the radiation source 30 and the control board.

Specifically, the power source may include one or more batteries, and the batteries may be rechargeable batteries. The power source may be a dedicated power supply for the radiation source 30, or a dedicated power supply for the control board, or power supply for the radiation source 30 and the control board at the same time. A switch may be connected to the control board, and the on and off of the switch can be controlled to control whether the power supply supplies power to the radiation source 30.

In one embodiment, the motor 20 is located downstream of at least part of the power source in the direction of air flow. In this way, the heat when the power supply is working is taken away by the wind of the motor, and the normal operation of the power supply is ensured.

Please refer to FIG. 1, the power supply 70 may include multiple batteries. The motor 20 may be located downstream of all the batteries, or the motor 20 may be between multiple batteries. Place the battery, the lower half of the handle is the battery, the upper half is the motor 20, and there is a battery in the body 102. In this way, the air flow (wind) generated by the motor 20 can flow through at least part of the power source, so that the part of the power source blown by the wind can be dissipated.

In addition, generally, the power source 70 is heavier than the motor 20, and the motor 20 is located at least partially downstream of the power source 70, which can avoid the drying device 100 being top-heavy. Furthermore, the wind resistance of the airflow generated by the motor 20 can also be reduced.

In one embodiment, the drying device 100 includes a safety sensor (not shown), the safety sensor is electrically connected to the power supply 70 and the radiation source 30, and the safety sensor is used to disconnect the power supply 70 when the temperature of the radiation source 30 is greater than the set temperature. powered by. In this way, the safety of the drying device 100 can be improved.

Specifically, the temperature of the radiation source 30 during operation may reach several hundred degrees, or thousands of degrees. If the temperature of the radiation source 30 increases abnormally due to abnormal operation, it may cause a burn accident to the user. Therefore, a safety sensor is provided. When the temperature of the radiation source 30 is greater than the set temperature, the power supply of the power supply 70 can be disconnected, so that the radiation source 30 stops working and the temperature drops, avoiding safety accidents and 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.

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

In one embodiment, the radiation source 30 is arranged on the longitudinal axis L of the air duct 40. In this way, the airflow has basically the same heat dissipation efficiency around the radiation source 30, avoiding the occurrence of high local temperature and low local temperature of the radiation source 30, which is beneficial to maintaining the working efficiency of the radiation source 30 and the intensity of infrared radiation is stable.

In an example, the number of the radiation source 30 is single, and the single radiation source 30 is arranged on the longitudinal axis L of the air duct 40. In an example, the number of radiation sources 30 is multiple, and the multiple radiation sources 30 are arranged around the circumference of the longitudinal axis L of the air duct 40.

The radiation source 30 may include a reflector cup 302 and a light emitting element 304, the light emitting element 304 is located in the reflector cup 302, the first part includes a part of the outer wall of the reflector cup 302, and the second part includes another part of the outer wall of the reflector cup 302. For example, in FIG. 1, the second part may be a part of the outer wall of the reflector cup 302 that directly contacts the outer wall of the air duct 40, and the first part may be another part of the outer wall of the reflector cup 302 connected to the outer wall of the air duct 40 through the second part. In other embodiments, the second part may include a part of the base 310 of the reflector cup 302, and a part of the base 310 directly contacts the outer wall of the air duct 40. It can be understood that, in other embodiments, the first part may include the base 310 of the reflector cup 302 or a part of the base 310.

Preferably, the surface area of the first part is greater than the surface area of the second part. In this way, it is possible to properly dissipate the radiation source 30 and maintain a proper working temperature of the radiation source 30.

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

In one embodiment, the drying device 100 includes a heat dissipation structure 80 through which the radiation source 30 transfers heat. The heat dissipation structure 80 is arranged between the radiation source 30 and other components of the drying device 100. In this way, the radiation source 30 can be properly dissipated.

Specifically, the heat dissipation structure 80 may 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 the contact between the radiation source 30 and the air duct 40. For example, the radiation source 30 may include a reflector 302, and the coupling may include contact between the outer wall of the reflector 302 and the outer wall of the air duct 40, and the contact part may form 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, and the contact part may form 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 may be connected to the radiation source 30. The surface area used for heat transfer in the heat dissipation structure 80 is determined based on the heat dissipation efficiency of the radiation source 30 by the air duct 40 and the normal operating temperature of the radiation source 30. In this way, the radiation source 30 can be accurately dissipated. Specifically, the surface area used for heat transfer in the heat dissipation structure 80 can be determined by performing simulation tests or experiments on the drying device 100.

Other components of the drying device 100 may include components such as an air duct 40 and a housing.

In one embodiment, the heat dissipation structure 80 is integrally connected with the radiation source 30 and/or other components of the drying device 100. In this way, the heat dissipation effect can be improved.

Specifically, the integrally formed connection means that there is no connection gap, or the connection gap is small and small, so that the heat can be dissipated in time, and the heat dissipation effect can be improved. Other components of the drying device 100 may include at least one of the motor 20, the air duct 40, and the housing.

In one embodiment, the heat dissipation structure 80 is connected to the radiation source 30 and/or other components of the drying device 100 by a first fixing member. In this way, the heat dissipation structure 80 can be fixed to the radiation source 30 and/or other components of the drying device 100.

Specifically, in an example, the first fixing member may include screws, and the heat dissipation structure 80 is fixed to the radiation source 30 and/or other components of the drying device 100 through the screws. In an example, the first fixing member may also be a fixing member formed by welding. In an example, the first fixing member may include a buckle, the heat dissipation structure 80 and the radiation source 30 and/or other parts of the drying device 100 are provided with buckling holes at corresponding positions, and the buckle and the buckle are mated and connected to make the heat dissipation structure 80 and The radiation source 30 and/or other components of the drying device 100 are fixedly connected. It can be understood that the first fixing member may also include other types of fixing members, and no examples are given here.

In an embodiment, the radiation source 30 and/or other components of the drying device 100 are limited by the second fixing member to limit the heat dissipation structure 80. In this way, the position limit of the heat dissipation structure 80 can be realized, the displacement of the heat dissipation structure 80 is avoided, and the installation of the heat dissipation structure 80 is also easy.

Specifically, the second fixing member may be a limiting groove, or a limiting post, or a combination of the two. The heat dissipation structure 80 is limited by the second fixing member. When the heat dissipation structure 80 is installed, the heat dissipation structure 80 can be Positioning, easy to install and fix.

In the embodiments shown in FIGS. 1, 4 and 6, the second part directly contacts the outer wall of the air duct 40. Specifically, in an example, a part of the outer wall of the reflector cup 302 directly contacts the outer wall of the air duct 40 for heat exchange, and the contacting part may form a heat dissipation structure or a part of the heat dissipation structure. Specifically, a part of the outer wall of the reflector cup 302 may form a part of the outer wall of the air duct 40 to directly contact another part of the outer wall of the air duct 40, that is, this part of the outer wall of the reflector cup 302 serves as the outer wall of the reflector 302 Part of it is also used as a part of the outer wall of the air duct 40. In addition, it is also possible that a part 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.

In the embodiment shown in FIGS. 14-16, the second part is in contact with the air duct 40 through an additional heat dissipation structure 80 for heat exchange. Specifically, the heat dissipation structure 80 may include metals that facilitate heat dissipation (such as aluminum, copper, aluminum alloy, copper alloy, etc.), carbon fiber materials, and the like. 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 dissipation plates, 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.

Specifically, in one embodiment, the heat dissipation structure 80 may be connected between the radiation source and the air duct. In an example, the heat dissipation structure may be connected between the second part and the air duct. The heat dissipation structure can transfer the heat of the radiation source to the air duct through at least one of heat conduction and heat convection, and the heat is taken away by the airflow in the air duct. The heat dissipation structure can also be formed on the outer wall of the reflector of the radiation source to transfer the heat of the radiation source to other spaces in the casing. The casing can be provided with heat dissipation holes. The heat of the radiation source transferred through the heat dissipation structure can be dissipated to the dryness by the heat dissipation holes. The external environment of the device. Of course, the heat dissipation structure can also connect the inner wall of the housing and the radiation source to transfer the heat of the radiation source to the housing. It should be pointed out that in this case, the high temperature rise of the housing should be avoided to cause trouble to users.

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

In one embodiment, referring to FIGS. 14 and 15, a part of the heat dissipation structure 80 is located in the air duct 40. In an example, the second part is a part of the outer wall of the reflector cup 302, one end of the heat dissipation structure 80 is connected to the part 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, and the airflow in the air duct 40 is directly Blow to this end of the heat dissipation structure 80. Further, the part of the heat dissipation structure 80 located in the air duct 40 may be formed as a first air guide. In this way, the adverse effect of this part of the heat dissipation structure 80 on the airflow can be reduced, and wind noise, wind resistance, etc. can be reduced.

Specifically, the first air guide may have a streamlined windward surface, and the airflow can flow smoothly on the windward surface. Further, the first air guide is integrally connected with the second air guide in the air duct 40. In this way, on the one hand, the second air guide in the air duct 40 can guide the airflow, and on the other hand, it can also speed up the heat exchange efficiency. The second wind guide may be a guide bar and/or a guide groove formed on the inner wall of the air duct 40, and the second wind guide may also be arranged in a streamlined shape. Through the arrangement of the second air guide, it is possible to rectify and adjust the direction of the airflow. The first air guide is integrally connected with the second air guide in the air duct 40, so that the airflow seamlessly passes through the first air guide and the second air guide, further reducing wind noise and wind resistance.

In one embodiment, the second air guide is located at the air flow outlet of the air duct. In this way, the second air guide can be arranged at the position where the airflow is about to leave the drying device, which can further reduce wind noise and can guide the airflow, thereby further improving the user experience.

Specifically, the second air guide can be a guide bar and/or a guide groove formed on the inner wall of the air duct 40, and the second air guide can also be a detachable nozzle, comb or curler, or Any combination of guide strips, guide grooves, nozzles, combs and crimpers.

In one embodiment, the second air guide is a guide vane of the motor. In this way, when the motor rotates, it can drive the guide vanes to rotate, thereby increasing the wind speed and accelerating the drying of objects.

Specifically, the guide vanes can be connected to the output shaft of the motor through a transmission mechanism (such as gears, worm gears, worms, etc.). The transmission mechanism has a certain reduction ratio and can make the guide vanes rotate at a desired speed.

In one embodiment, the heat dissipation structure 80 forms a part of the outer wall of the air duct 40. In other words, a part of the outer wall of the air duct 40 may form a heat dissipation structure 80 for heat exchange with the second part (for example, a part of the outer wall of the reflector 302).

In one embodiment, the heat dissipation structure 80 forms a part of the inner wall of the air duct 40. In other words, a part of the inner wall of the air duct 40 may form a heat dissipation structure 80, and pass through the wall of the air duct 40 through the connecting structure to exchange heat with the second part (such as a part of the outer wall of the reflector 302).

In the embodiment of the present application, the outer wall and the inner wall of the air duct 40 may be two faces of one part, or one face of each of the two parts, and the two parts are connected to form the air duct 40. There is no specific limitation here.

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

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

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. In this way, the contact portion can be more closely attached to the wall of the air duct 40, and the heat exchange efficiency can be improved.

Specifically, in an example, the outer wall of the air duct 40 is in the shape of an arc, and the contact part is connected to the outer wall of the air duct. shape. In one example, the outer wall of the air duct 40 is flat, and the contact part is connected 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 part is the same plane as the outer wall of the air duct 40. The cross-sectional shape of the contact portion can also be other shapes, and no examples are given here.

In one embodiment, the contact part further includes an extension part extending into the air duct 40. In an example, the second part is a part of the outer wall of the reflector cup 302, one end of the contact part of the heat dissipation structure 80 is connected to the part of the outer wall of the reflector cup 302, and the other end of the contact part of the heat dissipation structure 80 extends into the air duct 40. The air flow in 40 is directly blown to this end of the contact part. Further, the extension part guides the flow direction of the airflow in the air duct 40. In this way, the adverse effect of the extension on the airflow can be reduced, and wind noise, wind resistance, etc. can be reduced.

Specifically, the extension portion may have a streamlined windward surface, and the airflow can flow smoothly on the windward surface.

In one embodiment, the contact portion of the heat dissipation structure 80 forms a part of the outer wall of the air duct 40. In other words, a part of the outer wall of the air duct 40 may form a contact portion of the heat dissipation structure 80 for heat exchange with the second part (such as a part of the outer wall of the reflector 302).

In one embodiment, the contact portion of the heat dissipation structure 80 may also form a part of the inner wall of the air duct 40. In other words, a part of the inner wall of the air duct 40 may form a contact portion of the heat dissipation structure 80, and pass through the wall of the air duct 40 through the connecting structure to exchange heat with the second part (such as a part of the outer wall of the reflector 302).

It can be understood that, in other embodiments, the heat dissipation structure 80 may also include other parts outside the contact part. It may be that one end of the other part may be connected to the radiation source 30 and the other end may be suspended. It is also possible that one end of the other part can be connected to the radiation source 30, and the other end can be connected to other parts of the drying device 100, such as the housing 10.

In one embodiment, please refer to FIG. 17, the heat dissipation structure 80 includes a first through hole 108 provided on the wall of the radiation source 30 to guide the heat dissipation air flow to the inside of the radiation source 30. In this way, the heat dissipation structure 80 can guide the heat dissipation airflow to the inside of the radiation source 30 through the first through hole 108, and can adapt the heat dissipation to the high temperature area inside the radiation source 30.

Specifically, the first through hole 108 can introduce the airflow with a lower temperature into the inside of the radiation source 30. When the radiation source 30 is working, the temperature of the light-emitting element 304 is relatively high, so that the internal temperature of the radiation source 30 is relatively high. If too much heat is not dissipated in time, the working life of the radiation source 30 will be shortened. The airflow with a lower temperature is introduced into the radiation source 30 through the first through hole 108, which can appropriately dissipate heat in the high temperature area. It should be noted that the high temperature area of the radiation source 30 can be determined in advance through simulation or testing.

In one embodiment, the first through hole 108 is provided on the wall of the reflector cup 302 of the radiation source 30. In this way, the airflow with a lower temperature can be directly guided to the light-emitting element 304 through the first through hole 108 on the wall of the reflector cup 302, so that the light-emitting element 304 can be adapted to dissipate heat.

Generally, for the radiation source 30, when the radiation source 30 is working, the temperature of the light-emitting element 304 is basically the highest. Therefore, excessive temperature has the greatest impact on the working life of the light-emitting element 304. The temperature rise in the reflector 302 It is also the most obvious. By opening the first through hole 108 on the wall of the reflector 302, the heat dissipation airflow can be introduced to the portion of the light-emitting element 304 where the temperature is expected to be lowered, so as to prevent excessive temperature from affecting the working life of the light-emitting element 304.

In one embodiment, the first through hole 108 extends into the portion of the heat dissipation structure 80 between the radiation source 30 and the wall of the air duct 40. In this way, the airflow in the air duct 40 can enter the inside of the radiation source 30 through the first through hole 108.

Specifically, the first through hole 108 extends to a contact position between the radiation source 30 and the air duct 40. The wall of the air duct 40 may be provided with openings, and the openings are in communication with the first through hole 108, and the air flow in the air duct 40 (which can be a naturally diffused air flow or an air flow accelerated by the motor 20) can be opened The hole and the first through hole 108 enter the inside of the radiation source 30 to perform desired heat dissipation on the high temperature area inside the radiation source 30.

In one embodiment, the drying device 100 further includes a first connection part connected to the radiation source 30, and the first through hole 108 extends into the first connection part. In this way, the radiation source 30 can be appropriately dissipated.

Specifically, the first connecting portion may be a non-contact portion between the radiation source 30 and the air duct 40, and the first connecting portion may be a connecting portion for fixing the radiation source 30. For example, the first connecting portion may be a fixed connecting portion of the radiation source. The connecting portion between 30 and the housing 10, the first connecting portion may also be a connecting portion for fixedly connecting the radiation source 30 and the motor 20, and the first connecting portion may also be a connecting portion for fixedly connecting the radiation source 30 and other components of the drying device 100, There is no specific limitation here. The heat dissipation airflow can enter the first through hole 108 by natural diffusion.

In one embodiment, the first connection part has a heat dissipation function. In this way, the heat dissipation efficiency of the first connecting portion is further improved.

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

In one embodiment, the heat dissipation structure 80 further includes a second through hole 110 provided in the radiation source 30, and the heat dissipation airflow flowing in from the first through hole 108 flows out of the radiation source 30 through the second through hole 110. In this way, the radiation heat dissipation efficiency is further improved.

Specifically, the arrangement of the first through hole 108 and the second through hole 110 can make the low-temperature air flow entering the radiation source 30 absorb heat and then flow out of the radiation source 30 in time, thereby causing the low-temperature air flow to continuously circulate into the radiation source 30. Continuously dissipate heat inside the radiation source 30.

In one embodiment, the radiation source 30 includes a reflector cup 302 and an optical element arranged at the opening of the reflector cup 302, and the second through hole 110 is opened on the wall of the reflector cup 302 and/or the optical element. In this way, the airflow after heat absorption can flow out of the radiation source 30 through the wall of the reflector cup 302 and/or the optical element.

Specifically, when the second through hole 110 is opened at a position where the optical element 90 covers the radiation source 30, the airflow after heat absorption can be guided to the outside of the drying device 100. When the second through hole 110 is opened on the wall of the reflector cup 302, the heat-absorbing air flow can be guided into the casing 10, and then guided to the outside of the drying device 100 by the heat dissipation holes in the casing 10.

In one embodiment, the second through hole 110 is opened on the wall where the reflector cup 302 is in contact with the air duct 40 and/or is opened on the wall where the reflector cup 302 and the air duct 40 are not in contact. In this way, the airflow after heat absorption can enter the air duct 40 through the wall of the air duct 40 to dissipate heat.

Specifically, the airflow after absorbing heat flows into the air duct 40 through the second through hole 110. The airflow in the air duct 40 is usually an airflow with a lower temperature and a higher flow velocity. The air flow in 40 with a lower temperature and a faster flow rate is driven to flow to the air outlet of the air duct 40.

In one embodiment, the heat dissipation structure 80 includes a third through hole (not shown), and the third through hole communicates with the inside of at least two radiation sources 30. In this way, the airflow circulates back and forth between the at least two radiation sources 30, which can make the internal temperatures of the at least two radiation sources 30 more even, avoiding large differences in radiation intensity and affecting user experience.

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 together to form a connection, the third through hole can extend at the connection, or two adjacent radiation sources 30 can be connected through an additional second connection, and the third through hole can It also extends into the second connecting portion. Two non-adjacent radiation sources 30 may be connected through the second connecting portion, and the third through hole may extend into the second connecting portion. Among the at least two radiation sources 30 connected by the third through hole, the air flow in the radiation source 30 with a higher temperature forms a convection with the air flow in the radiation source 30 with a lower temperature through the third through hole, so that the at least two radiation sources The internal temperature of 30 tends to be the same, which ensures that the working conditions of at least two radiation sources 30 are basically the same.

In one embodiment, the radiation source 30 includes a reflector cup 302 and an optical element arranged at the opening of the reflector cup 302, and the third through hole is also opened on the wall of the reflector cup 302 and/or the optical element. In this way, the third through hole can be realized by opening a hole on the wall of the reflector cup 302 and/or the optical element.

In one embodiment, the heat dissipation airflow comes from inside the air duct 40 and/or outside the housing 10.

Specifically, the air flow in the air duct 40 can be guided to the radiation source 30 through the through hole feature of the above embodiment to form a heat dissipation air flow. The air flow outside the housing 10 can be achieved by opening an air inlet hole in the housing 10 far from the radiation source 30, and opening the radiation source 30 with a through hole communicating with the air inlet hole (as in the above embodiment, the radiation source 30 The through-hole feature, and/or the through-hole feature of the heat dissipation structure 80) are used to guide the airflow with a lower temperature outside the drying device 100 to the radiation source 30. Further, a fan can be installed at the air inlet to accelerate the flow rate of the external low-temperature air flow, and further improve the heat dissipation efficiency.

In one embodiment, the heat dissipation structure 80 includes a fourth through hole 112 formed by a through hole communicating with the inside of the air duct 40, and the fourth through hole 112 is used to guide the heat dissipation airflow to the radiation source 30. In this way, the airflow in the air duct 40 can be directed to the radiation source 30.

Specifically, the fourth through hole 112 may be a through hole opened on the wall of the air duct 40, which leads the air flow in the air duct 40 to form a heat dissipation air flow for the radiation source 30 to dissipate heat, and may pass through the through hole features of the above embodiments. The radiation source 30 is directed to the outside and/or inside.

In one embodiment, the fourth through hole 112 may also be a through hole opened on the wall of the partition 50, and the wall of the partition 50 may be formed as a part of the inner wall of the air duct 40.

In one embodiment, the heat dissipation structure 80 further includes a fifth through hole 114 provided in other parts of the drying device 100, and the heat dissipation airflow passing through the fourth through hole 112 can flow out from the fifth through hole 114. In this way, air circulation can be formed, and the heat dissipation efficiency is improved.

Specifically, other components of the drying device 100 may include a housing 10, a motor 20, and an air duct 40. The heat-dissipating airflow flowing in the fourth through hole 112 may be guided to the housing 10, the motor 20 and/or the air duct 40 to form an airflow circulation.

In one embodiment, the radiation source 30 includes a reflector cup 302 and an optical element arranged at the opening of the reflector cup 302, and the fifth through hole 114 is opened in a part of the optical element 90 that does not cover the radiation source 30. In this way, the heat dissipation airflow flowing in the fourth through hole 112 can flow out of the drying device 100 through the fifth through hole 114 of the optical element.

Specifically, the area of the optical element may 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, and the fifth through hole 114 is opened in this part, so that the heat dissipation airflow inside the drying device 100 is relatively high. The drying device 100 flows out through the fifth through hole 114.

In one embodiment, please refer to FIG. 17, the fifth through hole 114 is opened on the housing 10 and/or on the wall of the air duct 40. In this way, the heat-dissipating airflow can flow out of the drying device 100 or flow into the air duct 40.

Specifically, the temperature of the external environment of the drying device 100 is relatively low. After the air flow flowing in through the fourth through hole 112 absorbs heat, it can flow out of the drying device 100 through the fifth through hole 114 opened on the housing 10 to realize the air flow circulation.

In one embodiment, the drying device 100 includes a third connecting portion connecting the air duct 40 and the radiation source 30, and the fourth through hole 112 extends into the third connecting portion. In this way, the radiation source 30 can be appropriately dissipated.

Specifically, the third connecting portion may be a connecting portion that fixedly connects the radiation source 30 and the air duct 40, or may be a connecting portion that detachably connects at least one of the radiation source 30 and the air duct 40. The air flow in the air duct 40 enters the third connection part through the fourth through hole 112 to dissipate heat from the third connection part, and the third connection part is connected to the radiation source 30 so that the heat of the radiation source 30 is absorbed by the air flow in the air duct 40 Take it away and realize the heat dissipation of the radiation source 30.

In one embodiment, the third connection part has a heat dissipation function. In this way, the heat dissipation efficiency of the third connecting portion is further improved.

Specifically, the third connecting portion with a heat dissipation function may be made of a heat-dissipating material, such as metal, carbon fiber, etc., and/or the surface of the third connecting portion is coated with a heat-dissipating coating, and/or the third connecting portion is provided with heat-dissipating materials. For example, the structure for heat dissipation may include one or any combination of heat dissipation fins, heat dissipation air duct 40, heat pipe and heat dissipation plate.

In one embodiment, the difference in coefficient 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. In this way, the thermal expansion coefficient of the heat dissipation structure 80 is similar to that of the radiation source 30 and/or the drying device 100, which avoids deformation of components with a small thermal expansion coefficient when heated due to the large difference in the thermal expansion coefficient.

Specifically, it may be that the thermal expansion coefficient difference between the heat dissipation structure 80 and the radiation source 30 is within a preset range, it may be that the thermal expansion coefficient difference between the heat dissipation structure 80 and other components of the drying device 100 is within a preset range, or Yes, the difference in coefficient of thermal expansion between the heat dissipation structure 80 and the radiation source 30 and other components of the drying device 100 is within a preset range. The preset range can be calibrated in advance.

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. In this way, it can be realized that the thermal expansion coefficient of the heat dissipation structure 80 and the radiation source 30 and/or the drying device 100 are substantially the same, and the deformation of the components with a small thermal expansion coefficient when heated due to the large difference in the thermal expansion coefficient is avoided.

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

In one embodiment, referring to FIGS. 18A-18D, FIGS. 19A-19D, FIGS. 20A-20D, and FIGS. 21A-21D, the integrated air duct 40 and the integrated radiation source 30 are integrally formed and connected. In this way, the overall structure formed by the air duct 40 and the radiation source 30 is light in weight, strong in connection, and high in heat transfer efficiency.

Specifically, the air duct 40 may be made of heat dissipation material (such as metal, carbon fiber, etc.), and the reflector 302 of the radiation source 30 may be made of heat dissipation material (such as metal, carbon fiber, etc.), and the two are integrally formed by die casting or other methods. connect. One-piece connection, no need for additional connectors, reducing the use of components, thereby reducing weight. The one-piece connection means that there is no connection gap, or the connection gap is small and small, so that the heat can be transferred in time, and the heat dissipation effect and the connection strength can be improved. The air duct 40 and the radiation source 30 can be installed in the housing 10 as a whole.

Among them, FIGS. 18A-18D and FIGS. 19A-19D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 20A-20D and FIGS. 21A-21D show that the radiation source 30 is surrounded by the air duct 40. It should be pointed out that although the component numbers are not shown in FIGS. 22A-37D, the numbers of related components can be understood with reference to the component numbers shown in FIGS. 18A-21D.

In one embodiment, referring to FIGS. 22A-22D, FIGS. 23A-23D, FIGS. 24A-24D, and FIGS. 25A-25D, the integrated air duct 40 and part of the radiation source 30 are integrally formed and connected. Then, the other part of the radiation source 30 and the integral air duct 40 are connected in a non-integral manner.

Specifically, a part of the reflector cup 302 and the air duct 40 may be integrally formed and connected by die casting or other methods. The other part of the reflector cup 302 and the part of the reflector cup 302 can be connected separately. The air duct 40 and the radiation source 30 can be assembled into the housing 10 after being assembled together.

In FIGS. 22A and 24A, the reflector cup 302 can be connected up and down by connectors, which facilitates the installation of the light-emitting element 304 and the reflector cup 302; it can also be connected by connectors on the left and right sides, so that the part connected to the light-emitting element 304 can reflect light. The cup 302 is directly connected to the remaining reflector cup 302 part.

In FIGS. 22B and 24B, the heat dissipation structure 80 may be integrated with the air duct 40 and the lower half of the reflector cup 302; or the heat dissipation structure 80 and the base 310 of the reflector cup 302 may be integrated.

Among them, FIGS. 22A-22D and FIGS. 23A-23D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 24A-24D and FIGS. 25A-25D show that the radiation source 30 is surrounded by the air duct 40. Moreover, the squares in the figure indicate the locations where the two components are connected.

In one embodiment, referring to FIGS. 26A-26D, FIGS. 27A-27D, FIGS. 28A-28D, and FIGS. 29A-29D, part of the air duct 40 and the overall radiation source 30 are integrally formed and connected. Then, the other part of the air duct 40 and the integral radiation source 30 are connected in a non-integral manner.

Specifically, the reflector cup 302 and a part of the air duct 40 may be integrally formed and connected by die casting or other methods. The other part of the air duct 40 and the part of the air duct 40 may be separately connected. The air duct 40 and the radiation source 30 can be assembled into the housing 10 after being assembled together.

Among them, FIGS. 26A-26D and FIGS. 27A-27D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 28A-28D and FIGS. 29A-29D show that the radiation source 30 is surrounded by the air duct 40. Moreover, the squares in the figure indicate the locations where the two components are connected.

In one embodiment, referring to FIGS. 30A-30D, FIGS. 31A-31D, FIGS. 32A-32D, and FIGS. 33A-33D, part of the air duct 40 and part of the radiation source 30 are integrally formed and connected. Then, the other part of the radiation source 30 and the other part of the air duct 40 are connected in a non-integral manner. The air duct 40 and the radiation source 30 can be assembled into the housing 10 after being assembled together.

Specifically, a part of the reflector cup 302 and a part of the air duct 40 may be integrally formed and connected by die casting or other methods. The other part of the reflector cup 302 and the part of the reflector cup 302 can be connected separately. The other part of the air duct 40 and the part of the air duct 40 may be separately connected. The air duct 40 and the radiation source 30 can be assembled into the housing 10 after being assembled together.

In FIGS. 30A and 32A, the opening/lower part of the reflector cup 302 is integrated with the front/middle end of the air duct 40, or the base 310/lower part of the reflector 302 and the rear/middle end of the air duct 40 are integrated.

Among them, FIGS. 30A-30D and FIGS. 31A-31D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 32A-32D and FIGS. 33A-33D show that the radiation source 30 is surrounded by the air duct 40. Moreover, the squares in the figure indicate the locations where the two components are connected.

In one embodiment, referring to FIGS. 34A-34D, FIGS. 35A-35D, FIGS. 36A-36D, and FIGS. 37A-37D, the integrated air duct 40 and the integrated radiation source 30 are non-integrally formed and connected.

Specifically, the air duct 40 and the reflector cup 302 may be formed separately, and the outer wall of the air duct 40 may be in direct contact with the outer wall of the reflector cup 302 or contact and be connected through a heat dissipation structure. The two can be installed in the housing 10 after being assembled together.

In FIG. 34A and FIG. 36A, the air duct 40 and the reflector 302 are directly connected through an additional connecting piece, or both are connected to a third party. In FIG. 34B and FIG. 36B, the air duct 40 and the reflector 302 are connected by an additional connecting member or/and the heat dissipation structure 80. In FIGS. 34C and 36C, the air duct 40 and the reflector 302 are connected through an additional connecting piece, a heat dissipation structure 80, or/and a vent pipe.

Among them, FIGS. 34A-34D and FIGS. 35A-35D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 36A-36D and FIGS. 37A-37D show that the radiation source 30 is surrounded by the air duct 40. Moreover, the squares in the figure indicate the locations where the two components are connected.

In one embodiment, referring to FIGS. 38A-38D, FIGS. 39A-39D, FIGS. 40A-40D, and FIGS. 41A-41D, the air duct 40 and the radiation source 30 may not be assembled together. Specifically, when the air duct 40 and the radiation source 30 are installed in the housing 10, the air duct 40 and the radiation source 30 may be installed in the housing 10 sequentially or simultaneously.

In FIGS. 38A and 40A, nothing connects the air duct 40 and the reflector 302. In FIG. 38B and FIG. 40B, the air duct 40 has a hole to allow the heat dissipation structure 80 to be inserted, or the heat dissipation structure 80 is at the front of the air duct 40. In FIG. 38C and FIG. 40C, the additional connecting piece or/and the heat dissipation structure 80 of the reflector cup 302 is inserted into the opening of the air duct 40. In FIG. 38D and FIG. 40D, the additional connector or/and heat dissipation structure 80 of the air duct 40 is inserted into the opening of the reflector 302.

Among them, FIGS. 38A-38D and FIGS. 39A-39D show that the radiation source 30 is arranged around the airflow outlet 404 of the air duct 40. FIGS. 40A-40D and FIGS. 41A-41D show that the radiation source 30 is surrounded by the air duct 40. Moreover, the squares in the figure indicate the locations where the two components are connected.

In one embodiment, the light emitting element 304 emits radiation containing an infrared band. In this way, the infrared band radiation emitted by the light-emitting element 304 can be used to dry the object, and the drying effect is good.

Specifically, radiation in the infrared band may include radiation in the far-infrared band, radiation in the near-infrared band, and the like. In an example, the infrared waveband radiation emitted by the light emitting element 304 may cover an infrared spectrum of 0.7 μm or more. In an 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.

In another example, the radiation emitted by the light emitting element 304 may substantially cover the visible spectrum from 0.4 μm to 0.7 μm and the infrared spectrum above 0.7 μm.

In one embodiment, the light emitting element 304 includes at least one of a halogen lamp, ceramics, graphene, and light emitting diodes.

Specifically, examples of ceramics may include a positive temperature coefficient (PTC) heater and a metal ceramic heater (MCH). The ceramic light emitting element 304 includes a metal heating element buried in the ceramic, such as tungsten buried in silicon nitride or silicon carbide. The light emitting element 304 may be provided in the form of a wire (for example, silk). The thread may be patterned (e.g., formed into a spiral wire) to increase its length and/or surface. 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, a silicon carbide rod, or a carbon fiber rod with a predetermined diameter and length.

The light-emitting element 304 can be selected from one of halogen lamps, ceramics, graphene, and light-emitting diodes, or the light-emitting element 304 can be selected from two or a combination of more than two of halogen lamps, ceramics, graphene, and light-emitting diodes. . There is no specific limitation here.

In order to have a higher infrared emissivity, it is necessary to increase the temperature of the light emitting element 304. The temperature of the light emitting element 304 may be at least 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, or 2000 degrees Celsius (°C). In an example, the temperature of the light emitting element 304 may be 900 to 1500 degrees Celsius. The center wavelength or wavelength range of the infrared radiation emitted by the light-emitting element 304 may be tunable, for example, at least 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 10.0μm. The power density of the radiation emitted from the light-emitting element 304 can be adjusted in different operation modes of the drying device 100 (eg, fast drying mode, hair health mode, etc.), for example, by changing the voltage and/or voltage supplied to the drying device 100 The current can be adjusted.

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

The reflective surface of the reflector cup 302 may be coated with a coating material having high reflectivity to the wavelength or wavelength range of the radiation emitted by the light-emitting element 304. For example, the coating material may have high reflectivity for wavelengths in both the visible spectrum and the infrared spectrum. Materials with high reflectivity can have high efficiency in reflecting radiant energy. Examples of coating materials may include metallic materials and dielectric materials. The metal material may include, for example, silver and aluminum. The dielectric coating may have alternating layers of dielectric material, such as magnesium fluoride. The reflectivity of the reflective surface provided with the coating can be at least 90% (for example, 90% of the incident radiation is reflected by the reflective surface of the reflector 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 examples, the reflectivity of the reflective surface provided with the coating may be approximately 100%, which means that substantially all the radiation emitted by the light emitting element 304 can be reflected toward the outside of the drying device 100. Therefore, even if the temperature of the light-emitting element 304 is high, the temperature on the reflective surface of the reflector cup 302 will not substantially increase due to the radiation emitted from the light-emitting element 304.

In one embodiment, the axial cross section of the reflective surface of the reflector cup 302 is in the shape of a polynomial curve. In this way, a focal point can be formed on the reflecting surface, which facilitates the guiding of infrared radiation and reduces the divergence angle of the reflected radiation beam.

Specifically, the shape of the polynomial curve may include shapes such as a parabola, an ellipse, and a hyperbola. In an example, the axial cross-section of the reflective surface of the reflector cup 302 has a parabolic shape.

In one embodiment, the light emitting element 304 is arranged at the focal point of the reflective surface of the reflector cup 302. In this way, the infrared light beam emitted by the light emitting element 304 can be emitted from the opening of the reflector cup 302 substantially in parallel after being reflected by the reflecting surface, so that the infrared radiation emitted by the drying device 100 has good directivity.

Specifically, the light-emitting element 304 is disposed at the focal point of the reflective surface of the reflector 302, and the infrared radiation beam emitted by the light-emitting element 304 at the focal point is reflected by the reflective surface of the reflector 302, and is substantially parallel to each other from the opening of the reflector 302 Shoot out.

In other embodiments, the light emitting element 304 can also be placed away from the focus of the parabola, so that the reflected infrared radiation beam can converge or diverge at a certain distance in front of the drying device 100. The position of the light emitting element 304 in the reflector cup 302 can be adjusted, so that the degree of convergence and/or direction of the output radiation beam can be changed. The shape of the reflective cup 302 and the shape of the light emitting element 304 can be optimized and changed with respect to each other to output a desired heating power at a desired position of the drying device 100.

In addition, a heat-insulating material (for example, glass fiber, mineral wool, cellulose, polyurethane foam or polystyrene) may be inserted between the light-emitting element 304 and the reflector cup 302 to insulate the light-emitting element 304 and the reflector cup 302. Even if the temperature of the light-emitting element 304 is high, thermal insulation can keep the temperature of the reflector 302 from increasing. It is also possible to insert a heat insulating material between the periphery of the optical element and the reflector cup 302 to insulate the optical element from the reflector cup 302.

In one embodiment, referring to FIGS. 42A-42B, the radiation source 30 includes an optical element 90, and the optical element 90 is disposed at the opening of the reflector 302 to filter or reflect radiation in the non-infrared wavelength range. In this way, only infrared radiation can be directed to the object to be dried.

Specifically, the optical element 90 may include a lens, a reflector, a prism, a grating, a beam splitter, an optical filter, or a combination thereof that changes or redirects light. In some embodiments, the optical element 90 may be a lens. In some embodiments, the optical element 90 may be a Fresnel lens.

The optical element 90 may be made of a material having 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 materials that absorb or reflect the visible spectrum and the ultraviolet spectrum, so that only wavelengths in the infrared range can pass through the optical element 90. The optical element 90 can filter out (for example, absorb) radiation that is not in the infrared spectrum. The infrared transmittance of the optical element 90 may be at least 95% (for example, 95% of the incident radiation in the infrared spectrum passes through the 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 the optical element 90 may be 99%.

In one example, the light emitting element 304 can emit radiation with a wavelength of 0.4 μm to 20 μm, the reflector 302 can reflect all radiation toward the optical element 90 (for example, no radiation is absorbed at the reflective surface), and the optical element 90 can be removed from Any visible spectrum wavelength between 0.4 μm and 0.7 μm is filtered out of the reflected radiation, so that only radiation in the infrared spectrum leaves the radiation source 30.

In one embodiment, a limiting rib or groove for fixing the optical element 90 may be provided at the opening of the reflector cup 302 or the air flow outlet 404 of the air duct 40.

In one embodiment, the optical element 90 is sealed at the opening of the reflector cup 302. In this way, a relatively sealed internal space can be formed in the reflector cup 302.

Specifically, the internal space of the reflector cup 302 may be configured to have a certain degree of vacuum. The pressure inside the reflector 302 may be less than 0.9 standard atmospheric pressure (atm), 0.8atm, 0.7atm, 0.6atm, 0.5atm, 0.4atm, 0.3atm, 0.2atm, 0.1atm, 0.05atm, 0.01atm, 0.001atm, 0.0001atm or less. In one embodiment, the inside of the reflector cup 302 is close to a vacuum state, for example, the pressure inside the reflector cup 302 may be about 0.001 atm or less. The vacuum can suppress the evaporation and/or oxidation of the light emitting element 304 and extend the life of the radiation source 30. The 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.

In one embodiment, the reflector cup 302 is filled with a protective gas. The protective gas can be a certain amount of non-oxidizing gas (such as an inert gas) while still maintaining a certain level of vacuum to reduce the damage caused by the reflector cup 302 and the optical element 90. The temperature of the gas inside the space formed by the inner surface rises. Although this temperature rise is small, it is caused by heat convection and heat 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 can further protect the material of the light emitting element 304 from oxidation and evaporation.

In the embodiment shown in FIG. 42A, a plurality of radiation sources 30 share one optical element 90, that is, one optical element is provided at the opening of the reflector 302 of all the radiation sources. In the embodiment shown in FIG. 42B, each radiation source is provided with an optical element 90, that is, an optical element 90 is provided at the opening of a reflector 302.

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

Specifically, the control board may include a circuit board and various components mounted on the circuit board, such as a processor, a controller, a power supply 70, a switch circuit, a detection circuit, and the like. The control board can be electrically connected to the radiation source 30 and the motor 20, and other electrical components, such as lights, indicator lights, sensors, etc. The control board is used to control the operation of the drying device 100, including but not limited to controlling the operation mode of the drying device 100, the length of operation, the rotation speed of the motor, the power of the radiation source 30, and so on.

In one embodiment, the drying device 100 includes a power source 70 located in the housing 10, the power source 70 is electrically connected to a control board, and the control board is electrically connected to the radiation source 30 and the motor 20. In this way, the power consumption of the radiation source 30 and the motor 20 can be controlled by the control board.

Specifically, the control board can convert the voltage of the power source 70 into the voltage of the radiation source 30 corresponding to the working mode of the drying device 100 and the voltage of the motor 20, so that the radiation source 30 and the motor 20 can work in this working mode. For example, by adjusting the voltage, the radiation power of the radiation source 30, the rotation speed of the motor 20 (that is, the rotation speed of the fan blade), etc. can be adjusted. Or the power supply 70 is switched on and off to control the working time of the radiation source 30 and the motor 20. It can be understood that, in other embodiments, the power supply 70, the control board, the radiation source 30, and the motor 20 may also be connected in other ways. In one example, the power supply 70 may be installed in the handle 104.

In one embodiment, the power source 70 includes a rechargeable battery. In this way, the drying device 100 can be free from the shackles of the wire harness when in use, and the user experience can be improved.

Specifically, the rechargeable battery may be a lithium ion battery, or other rechargeable batteries. There may be one or more rechargeable batteries, and multiple batteries may be connected in series, or in parallel, or in series and parallel. There is no specific limitation here. In addition, in order to facilitate the charging of the battery, the main body 102 or the handle 104 may be provided with a charging interface. It can be understood that the charging interface may be a wired charging interface or a wireless charging interface, which is not specifically limited here. In addition, in order to facilitate the disassembly of the battery, a battery cover may be provided on the handle 104, and the battery cover is removable to facilitate the removal and installation of the battery.

In one embodiment, the drying device 100 further includes a sensor that senses the state of at least one of the drying device 100, the working environment in which the drying device 100 is located, the airflow, or the receiver of radiation. In this way, the operation of the drying device 100 can be controlled according to the signal of the sensor, and the user experience can be improved.

Specifically, the state includes at least one of temperature, humidity, distance, posture, movement, flow, and flux.

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 side of the airflow outlet 404 of the housing 10 to monitor the state (for example, humidity) of the object to be dried (ie, the receiver of airflow or radiation). The area where the airflow is applied to the object to be dried may roughly include an infrared radiation area (for example, radiation spot) on the object to be dried. Airflow can accelerate the evaporation of water from the object to be dried by blowing away the moist air around the object to be dried. The airflow can also reduce the temperature of the object to be dried radiated by infrared radiation, so as to avoid damage to the object being dried. The temperature of the object to be dried and the water on the object to be dried must be kept within an appropriate range to accelerate the evaporation of water from the object to be dried, while keeping the object to be dried from overheating. A suitable temperature range can be 50 to 60 degrees Celsius. The speed of the airflow blowing on the object to be dried can be adjusted to maintain the temperature of the object to be dried in an appropriate temperature range, for example, by blowing away hot water and excess heat. The proximity/range sensor and the temperature sensor can work together to determine the temperature of the object to be dried and adjust the speed of the airflow through a feedback loop control to maintain the constant temperature or programmed temperature of the object to be dried. The object to be dried may be hair, for example.

The posture sensor can collect the posture and movement of the drying device 100. For example, the attitude sensor may include an inertial detection module (IMU), which can detect the state of at least one of the roll axis, pitch axis, and yaw axis of the drying device 100, and can also detect whether it is in motion on the corresponding axis. For example, when the user blows against a part of the object to be dried for a long time, the posture sensor detects that the drying device 100 has not moved for a long time. Then, in order to avoid damage to the part of the object to be dried, the control board can be based on the posture sensor. The output data can be used to control the reduction of the rotation speed of the motor 20 and/or the reduction of the radiation intensity of the radiation source 30, and can also control the drying device 100 to perform sound, light, and vibration prompts.

The flow sensor can detect the flow of the air flow, so that the control board can control the speed of the motor 20 to adapt to the temperature control of the object to be dried. Similarly, the control board can also control the operation of the motor 20 and/or the radiation source 30 according to the flux data output by the flux sensor.

In one embodiment, the sensor is disposed in the housing 10 and located at the air outlet 404 of the air duct 40 and/or the opening of the radiation source 30. In this way, more accurate control of the airflow state and/or radiation state can be achieved.

Specifically, the sensor is located at the airflow outlet 404 of the air duct 40, which can detect the state of the airflow leaving the drying device 100, such as flow, flux, temperature, humidity, etc., and can more accurately control the state of the airflow leaving the drying device 100 , To prevent the internal environment of the drying device 100 from affecting the detection of the airflow state. Similarly, the sensor is located at the opening of the radiation source 30, which can detect the radiation state, such as intensity, leaving the drying device 100, and can more accurately control the radiation state leaving the drying device 100 to avoid the internal environment of the drying device 100. Detection of radiation status.

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

1. Compared with the traditional drying equipment 100 (for example, the entire outer wall of the reflector 302 is directly in the air duct 40), too much heat dissipation will affect the radiation efficiency, because excessive heat dissipation means that the luminous element 304 needs to convert additional electrical energy into heat energy To maintain the temperature necessary to produce black body radiation. The configuration of the drying device 100 in the embodiment of the present application can appropriately reduce the temperature of the radiation source 30, prolong the service life of the light-emitting element 304, and at the same time prevent the temperature from dropping too low and causing waste of electric energy (more electric energy is used to maintain the black body). Radiant temperature).

2. The excess heat of the radiation source 30 is taken away by the wind, and the temperature of the wind rises by a few degrees (1 to 5 degrees). Although it is not enough to have a decisive effect on dry hair, it improves the body feeling of the people after the wind blows on the human body. People will not feel blown by the cold wind, which improves the user experience.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples” etc. means to combine the embodiments The specific features, structures, materials or characteristics described by the examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A drying equipment, characterized in that it comprises:

A housing, in which an air duct is provided;

A motor located in the housing and used to generate airflow in the air duct;

A radiation source, housed in the housing and used to generate infrared radiation and guide the infrared radiation to the outside of the housing,

A heat dissipation structure, the radiation source transfers heat through the heat dissipation structure, and the heat dissipation structure is arranged between the radiation source and other components of the drying device.
The drying device according to claim 1, wherein the radiation source is not entirely located in the air duct.
The drying device according to claim 1, wherein the radiation source is arranged between the housing and the air duct.
The drying device according to claim 1, wherein the radiation source is surrounded by the air duct.
The drying device according to claim 1, wherein the radiation source is not located in the air duct at all.
The drying device according to claim 1, wherein the radiation source is coupled with the air duct.
The drying device according to claim 1, wherein the drying device further comprises a partition that contains the radiation source.
The drying device according to claim 1, wherein the radiation source comprises a reflector cup, and the axial section of the reflector surface of the reflector cup is in the shape of a polynomial curve.
8. The drying device according to claim 8, wherein the radiation source comprises a light-emitting element located in the reflector cup, and the light-emitting element emits radiation in the infrared band.
The drying device according to claim 9, wherein the light emitting element is arranged at the focal point of the reflective surface of the reflector cup.
The drying device according to claim 9, wherein the light-emitting element includes at least one of a halogen lamp, ceramics, graphene, and light-emitting diodes.
The drying device according to claim 9, wherein the radiation source further comprises an optical element, the optical element is arranged at the opening of the reflector cup, and is used to filter and/or reflect radiation in the non-infrared waveband.
The drying device according to claim 1, wherein the difference in coefficient of thermal expansion between the heat dissipation structure and the radiation source and/or other components of the drying device is within a preset range.
The drying device according to claim 1, wherein the heat dissipation structure is made of the same material as the radiation source and/or other parts of the drying device.
The drying device according to claim 1, wherein the heat dissipation structure is integrally connected with the radiation source and/or other components of the drying device.
The drying device according to claim 1, wherein the heat dissipation structure is connected to the radiation source and/or other components of the drying device through a first fixing member.
The drying device according to claim 1, wherein the radiation source and/or other components of the drying device limit the heat dissipation structure by a second fixing member.
The drying device according to claim 1, wherein the heat dissipation structure transfers heat to the radiation source through at least one of heat conduction and heat convection.
The drying device according to any one of claims 1 to 18, wherein the heat dissipation structure comprises a contact portion between the radiation source and the wall of the air duct.
The drying device according to claim 19, wherein the cross-sectional shape of the contact portion is the same as the contacted portion of the wall of the air duct.
The drying device according to claim 19, wherein the contact portion forms a part of the outer wall of the air duct.
The drying device according to claim 19, wherein the contact part further comprises an extension part extending into the air duct.
The drying device according to claim 22, wherein the extension portion guides the flow direction of the airflow.
The drying device according to claim 19, wherein the contact portion forms a part of the inner wall of the air duct.
The drying device according to claim 1, wherein the surface area used for heat dissipation in the heat dissipation structure is determined based on the heat dissipation efficiency of the radiation source by the air duct and the normal operating temperature of the radiation source.
The drying device according to any one of claims 1 to 18, wherein the heat dissipation structure is arranged between the radiation source and the air duct.
The drying equipment according to claim 26, wherein the heat dissipation structure connects the radiation source and the outer wall of the air duct, or a part of the heat dissipation structure is located in the air duct, or the heat dissipation structure forms A part of the outer wall of the air duct, or the heat dissipation structure forms a part of the inner wall of the air duct.
The drying device according to claim 26, wherein a part of the heat dissipation structure is located in the air duct, and the part of the heat dissipation structure is formed as a first air guide.
The drying equipment according to claim 28, wherein the first air guide is integrally connected with the second air guide in the air duct.
The drying device according to claim 29, wherein the second air guide is located at the air outlet of the air duct.
The drying device according to claim 29, wherein the second air guide is a guide vane of the motor.
The drying device according to any one of claims 1 to 18, wherein the heat dissipation structure comprises a first through hole arranged on the wall of the radiation source to guide the heat dissipation airflow to the inside of the radiation source.
The drying device according to claim 32, wherein the first through hole is provided on the wall of the reflector cup of the radiation source.
The drying device according to claim 32, wherein the first through hole extends into a portion of the heat dissipation structure between the radiation source and the wall of the air duct.
The drying device according to claim 32, wherein the drying device further comprises a first connection part connected with the radiation source, and the first through hole extends into the first connection part.
The drying device according to claim 35, wherein the first connecting portion has a heat dissipation function.
The drying device according to claim 32, wherein the heat dissipation structure further comprises a second through hole provided in the radiation source, and the heat dissipation airflow flowing in from the first through hole passes through the second through hole. The through hole flows out of the radiation source.
The drying device according to claim 37, wherein the radiation source comprises a reflector cup and an optical element arranged at the opening of the reflector cup, and the second through hole is opened on the wall and/or of the reflector cup. The optical element.
The drying equipment according to claim 38, wherein the second through hole is opened in the wall where the reflector cup and the air duct are in contact, and/or is opened in the wall where the reflector cup and the air duct are not. Touching the wall.
The drying device according to any one of claims 1 to 18, wherein the heat dissipation structure comprises a third through hole, and the third through hole communicates with the inside of at least two of the radiation sources.
The drying device according to claim 40, wherein the drying device further comprises a second connection part connected with at least two of the radiation sources, and the third through hole extends into the second connection part .
The drying device according to claim 40, wherein the radiation source comprises a reflector cup and an optical element arranged at the opening of the reflector cup, and the third through hole is also opened on the wall of the reflector cup and/ Or the optical element.
The drying device according to any one of claims 32-42, wherein the heat dissipation airflow comes from inside the air duct and/or outside the housing.
The drying device according to any one of claims 1-18, wherein the heat dissipation structure comprises a fourth through hole, and the fourth through hole is formed by a through hole communicating with the inside of the air duct, and the The fourth through hole is used to guide the heat dissipation airflow to the radiation source.
The drying device according to claim 44, wherein the fourth through hole is opened on the wall of the air duct.
The drying device according to claim 45, wherein the heat dissipation structure further comprises a fifth through hole provided in other parts of the drying device, and the heat dissipation airflow flowing in from the fourth through hole passes through the first Five through holes flow out.
The drying device according to claim 46, wherein the radiation source comprises a reflector cup and an optical element arranged at the opening of the reflector cup, and the fifth through hole is opened in the optical element that does not cover the radiation. Part of the source.
The drying device according to claim 46, wherein the fifth through hole is opened on the housing and/or on the wall of the air duct.
The drying device according to claim 44, wherein the drying device comprises a third connecting part connecting the air duct and the radiation source, and the fourth through hole extends into the third connecting part .
The drying device of claim 49, wherein the third connecting portion has a heat dissipation function.