A drying apparatus

Abstract

A drying device (10) comprises a housing (11), a first air duct (a), a second air duct (b), a wind power assembly (12) and a radiation assembly (13) are arranged in the housing (11); wherein the airflow of the first air duct (a) flows out of the housing (11) from an airflow channel (111), at least part of the airflow in the first air duct (a) comes from outside the second air duct (b); the wind power assembly (12) comprises a motor (121) for generating airflow in the first air duct (a) and / or the second air duct (b); the radiation assembly (13) comprises a first part (131) and a second part (132); the first part (131) forms at least part of the airflow channel (111), or the airflow channel (111) is mounted on the first part (131); the second part (132) exchanges heat with the airflow in the second air duct (b).

Description

Technical Field

[0001] This application relates to the field of drying technology, and in particular to a drying device. Background Technology

[0002] Traditional hair dryers mainly consist of a motor, heating wire (such as a resistance wire), and an air duct. When the motor runs, it generates airflow within the duct. The heating wire, when energized, heats this airflow, and the hair dryer blows the hot air onto the user's hair. However, excessively hot airflow can bake the hair, damaging its quality with prolonged use.

[0003] The new generation of hair dryers incorporates a radiation source capable of generating infrared radiation, which directly heats the moisture in the hair. Since the radiation source needs to dissipate heat during operation, current technology typically places the radiation source, either wholly or partially, within the hair dryer's airflow duct, allowing the hair dryer's own airflow to dissipate heat from the radiation source.

[0004] However, when the airflow inside the hair dryer passes over the surface of the radiation source, it generates wind resistance and wind noise, which not only increases the operating noise but also affects the smoothness of the output airflow, making it easy for users to mess up their hair. Summary of the Invention

[0005] This application provides a drying device designed to solve the problems of poor airflow smoothness and high wind noise in existing hair dryers with radiation sources.

[0006] The drying equipment provided in this application includes a housing, within which are disposed a first air duct, a second air duct, a wind power component, and a radiation component; wherein airflow from the first air duct exits the housing through an airflow channel, and at least a portion of the airflow in the first air duct originates from outside the second air duct. The wind power component includes a motor for generating airflow in the first air duct and / or the second air duct; the radiation component includes a first portion and a second portion, the first portion forming at least a portion of the airflow channel, or the airflow channel being installed in the first portion; the second portion exchanges heat with the airflow in the second air duct.

[0007] The drying equipment of this application has a first air duct and a second air duct. Airflow from the first air duct exits the housing through an airflow channel and dries the target object. Airflow in the second air duct flows through the second part of the radiant assembly for heat dissipation. The wind noise and wind resistance generated during the heat dissipation process in the second part have minimal impact on the airflow in the first air duct. Therefore, the drying equipment of this application can both meet the heat dissipation requirements of the radiant assembly and output a smoother airflow, while reducing operating noise.

[0008] Additional aspects and advantages of the embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0010] Figure 1a , Figure 1b , Figure 1c , Figure 1d , Figure 1e This is a schematic diagram of the drying equipment in some embodiments of this application;

[0011] Figure 2a , Figure 2b This is a schematic diagram of the airflow and duct of the drying equipment in some embodiments of this application;

[0012] Figure 2c yes Figure 2a Schematic diagram of airflow direction at the middle mm section;

[0013] Figure 3a , Figure 3b This is a schematic diagram of the airflow and duct of the drying equipment in some embodiments of this application;

[0014] Figure 3c yes Figure 3a Schematic diagram of airflow direction at the nn section;

[0015] Figure 4 This is an exploded schematic diagram of the drying equipment in some embodiments of this application;

[0016] Figure 5 This is a schematic diagram of the drying equipment in some embodiments of this application;

[0017] Figure 6 This is a schematic diagram of the drying equipment in some embodiments of this application;

[0018] Figure 7 This is a schematic diagram of the drying equipment in some embodiments of this application. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0020] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, and unless the number of certain structures is specifically stated, it should be understood that the number of these structures can be one or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] This disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] like Figure 1a As shown, in some embodiments of this application, a drying device 10 is provided, including a housing 11, within which a first air duct a, a second air duct b, a wind power component 12, and a radiation component 13 are provided. The airflow direction in the first air duct a and the second air duct b is indicated by dashed arrows in the figures; the same applies to other figures below, and will not be repeated.

[0025] The wind power assembly 12 includes a motor 121, which drives the propeller to rotate during operation, generating airflow in the first air duct a and / or the second air duct b. The airflow in the first air duct a flows out of the housing 11 through the airflow channel 111 and is blown toward the target object for drying.

[0026] The radiating component 13 generates infrared radiation (IR) with a preset wavelength range and power density during operation. This radiation is sent to the target object (e.g., hair, fabric) and directly heats the moisture in the object. This radiative heat transfer method results in almost no heat absorption by the surrounding air, significantly improving energy efficiency compared to traditional heat conduction methods. When the radiating component 13 operates simultaneously with the wind turbine 12, the combination of airflow and infrared radiation accelerates the evaporation of moisture from the target object.

[0027] The operating principle of the radiation component 13 is based on blackbody radiation, which radiates in the infrared to visible wavelength range through heat transfer. Blackbody radiation is broadband radiation, with its center wavelength and spectral bandwidth decreasing as temperature increases. The total energy of blackbody radiation is related to S×T. 4 Proportional, where S represents surface area and T represents temperature.

[0028] The radiation component 13 needs to operate within a suitable temperature range. If the operating temperature of the radiation component 13 is too high, the center wavelength will decrease, and the emitted infrared radiation will deviate from the preset wavelength, affecting drying efficiency. Moreover, the high temperature of the radiation component 13 will also heat the adjacent components and the housing 11, easily leading to an overall high temperature of the drying equipment 10. If the operating temperature of the radiation component 13 is too low, more electrical energy needs to be converted into heat energy to maintain its operating temperature in order to produce infrared radiation of the preset wavelength, resulting in wasted electrical energy. Therefore, when designing the relevant structures within the drying equipment 10, it is necessary to comprehensively consider factors such as the heat dissipation area, heat dissipation requirements, heat dissipation airflow rate, and heat dissipation airflow velocity of the radiation component 13 to ensure that the radiation component 13 is always maintained within a suitable temperature range during operation. For simplification, the following description refers to the operating temperature of the radiation component 13 being below the lower limit of its suitable temperature range as the radiation component 13 being too low, and the operating temperature of the radiation component 13 being above the upper limit of its suitable temperature range as the radiation component 13 being too high.

[0029] like Figure 1aAs shown, in the embodiments provided in this application, the radiation component 13 includes a first part 131 and a second part 132. The first part 131 corresponds to the airflow in the first air duct a, and the second part 132 corresponds to the airflow in the second air duct b.

[0030] More specifically, the second part 132 exchanges heat with the airflow in the second air duct b. In some specific embodiments, the airflow in the second air duct b flows directly over the surface of the second part 132 and exchanges heat with it. In other specific embodiments, the airflow in the second air duct b flows through a related heat dissipation structure thermally coupled to the second part 132, and indirectly exchanges heat with the second part 132. As the airflow in the second air duct b continues to flow, it carries away the heat from the surface of the second part 132, thereby achieving heat dissipation and cooling of the second part 132.

[0031] The airflow in the first air duct a flows through the airflow channel 111 and then leaves the casing. (The rest of the text appears to be unrelated and possibly machine-generated.) Figure 1a In the illustrated embodiment, the first portion 131 of the radiating component 13 forms at least a partial airflow channel 111. In other words, the airflow in the first air duct a exits the housing 11 after passing through the first portion 131. It is readily apparent that when the airflow in the first air duct a flows directly through the first portion 131, heat exchange inevitably occurs between the airflow and the first portion 131, meaning that the airflow in the first air duct a dissipates heat from the first portion 131. The airflow channel 111 can be entirely formed by the first portion 131, or it can be formed by the first portion 131 and other structures.

[0032] In such Figure 1bIn other embodiments shown, the airflow channel 111 is a separate structure installed in the first portion 131 of the radiating assembly 13. In other words, the airflow in the first duct a does not flow directly through the first portion 131, but flows through the airflow channel 111 installed in the first portion 131 and then exits the housing 11. If the airflow channel 111 itself has good thermal conductivity (e.g., made of materials such as iron, aluminum, or copper), then the airflow channel 111 is equivalent to a heat dissipation structure thermally coupled to the first portion 131, and the airflow in the first duct a indirectly dissipates heat to the first portion 131 as it flows through the airflow channel 111. If the airflow channel 111 itself has poor thermal conductivity (e.g., made of materials such as mica, ceramic, or asbestos), then the airflow channel 111 does not form a thermal coupling with the first portion 131, and correspondingly, the airflow in the first duct a does not dissipate heat to the first portion 131 when it flows through the airflow channel 111. In more specific embodiments, depending on the aforementioned different heat dissipation requirements, the airflow channel 111 can be designed with a smooth inner wall, resulting in lower airflow resistance; alternatively, the airflow channel 111 can be designed with multiple heat sinks or convex structures, which, compared to a smooth inner wall, increases the contact area with the airflow and improves heat dissipation efficiency. In some embodiments, the airflow channel 111 covers the entire first part 131, so its thermal conductivity affects the overall heat dissipation effect of the first part 131. In other embodiments, the airflow channel 111 covers only a portion of the first part 131, while another portion of the first part 131 can contact the airflow in the first air duct a, thus the thermal conductivity of the airflow channel 111 only affects a portion of the first part 131. In summary, changing the thermal conductivity, shape, and coverage area of ​​the airflow channel 111 can alter the heat dissipation efficiency of the first air duct a for the first part 131.

[0033] At least a portion of the airflow in the first air duct a originates from outside the second air duct b, meaning that some airflow in the first air duct a does not flow through the second air duct b. Figure 1a In the illustrated embodiment, the first air duct a has at least two airflow components, one of which originates from the second air duct b, and the other originates from outside the second air duct b. Figure 1c In the embodiment shown, the airflow in the first air duct a comes entirely from outside the second air duct b, that is, the first air duct a and the second air duct b are independent of each other.

[0034] The combination of the above-described multiple implementation methods can achieve the following multiple heat dissipation methods:

[0035] (a) such as Figure 1aAs shown, the first part 131 forms an airflow channel 111. Part of the airflow in the first airflow channel a originates from the second airflow channel b, and the other part originates from outside the second airflow channel b. The heat dissipation process of the radiating component 13 is as follows: after the airflow in the second airflow channel b dissipates heat from the second part 132, it mixes with the airflow from outside the second airflow channel b and flows into the first airflow channel a. The airflow in the first airflow channel a dissipates heat from the first part 131 as it flows through the airflow channel 111.

[0036] (b) such as Figure 1b As shown, the first part 131 is equipped with an airflow channel 111, and the airflow channel 111 has good thermal conductivity. Part of the airflow in the first airflow channel a comes from the second airflow channel b, and the other part comes from outside the second airflow channel b. The heat dissipation process of the radiating component 13 is as follows: after the airflow in the second airflow channel b dissipates heat from the second part 132, it mixes with the airflow from outside the second airflow channel b and flows into the first airflow channel a. Because the airflow channel 111 and the first part 131 form a thermal coupling, the airflow in the first airflow channel a flows through the airflow channel 111 and indirectly dissipates heat from the first part 131.

[0037] (c) such as Figure 1b As shown, the first part 131 is equipped with an airflow channel 111, and the airflow channel 111 has poor thermal conductivity. Part of the airflow in the first airflow channel a originates from the second airflow channel b, and the other part originates from outside the second airflow channel b. Due to the poor thermal conductivity of the airflow channel 111, the airflow in the first airflow channel a does not dissipate heat from the first part 131. The heat dissipation process of the radiation component 13 is as follows: the airflow in the second airflow channel b dissipates heat from the second part 132.

[0038] (d) such as Figure 1c As shown, the first part 131 forms an airflow channel 111. All the airflow in the first air duct a originates from outside the second air duct b. The heat dissipation process of the radiating component 13 is as follows: the airflow in the second air duct b dissipates heat from the second part 132, and the airflow in the first air duct a dissipates heat from the first part 131.

[0039] (e) such as Figure 1d As shown, the first part 131 is equipped with an airflow channel 111, and the airflow channel 111 has good thermal conductivity. All the airflow in the first air duct a comes from outside the second air duct b. The heat dissipation process of the radiating component 13 is as follows: the airflow in the second air duct b dissipates heat to the second part 132, and the airflow in the first air duct a passes through the airflow channel 111 and indirectly dissipates heat to the first part 131.

[0040] (f) such as Figure 1dAs shown, the first part 131 is equipped with an airflow channel 111, and the airflow channel 111 has poor thermal conductivity. All the airflow in the first air duct a comes from outside the second air duct b. The heat dissipation process of the radiation component 13 is as follows: the airflow in the second air duct b dissipates heat from the second part 132.

[0041] The various heat dissipation methods described above result in different heat dissipation intensities for the radiating component 13.

[0042] In heat dissipation method (d), the airflow in the first air duct a and the second air duct b are independent of each other, and each dissipates heat to the first part 131 and the second part 132 respectively, thus maximizing the heat dissipation intensity of the radiating component 13. Heat dissipation method (e) is largely similar to heat dissipation method (d), except that in heat dissipation method (e), the first air duct a indirectly dissipates heat to the first part 131 through an airflow channel 111 with better thermal conductivity. Depending on the actual shape, material, and size of the airflow channel 111, the heat dissipation intensity of heat dissipation method (e) may be roughly the same as that of heat dissipation method (d), or it may be stronger or weaker.

[0043] In heat dissipation method (a), a portion of the airflow in the first air duct a originates from the second air duct b. Because the airflow in the second air duct b absorbs heat and rises in temperature through heat exchange with the second part 132, its entry into the first air duct a causes the airflow temperature in the first air duct a to be higher than the ambient temperature. Therefore, the heat dissipation efficiency of the airflow in the first air duct a decreases when it flows through the first part 131, resulting in a lower heat dissipation intensity for the radiating component 13 compared to heat dissipation method (d). Heat dissipation method (b) is largely similar to heat dissipation method (a), except that heat dissipation method (b) indirectly dissipates heat from the first part 131 through the airflow channel 111, which has better thermal conductivity. Therefore, the heat dissipation intensity of heat dissipation methods (a) and (b) is lower than that of heat dissipation methods (d) and (e).

[0044] In heat dissipation methods (c) and (f), due to the poor thermal conductivity of the airflow channel 111, the airflow does not dissipate heat on the first part 131, but only the airflow in the second air duct b dissipates heat on the second part 132. The heat dissipation intensity of the two methods is roughly the same, and both are lower than those of heat dissipation methods (a) and (b).

[0045] As mentioned earlier, excessive heat dissipation intensity can lead to excessively low temperatures in the radiating component 13, resulting in increased power consumption; conversely, insufficient heat dissipation intensity can lead to excessively high temperatures in the radiating component 13, causing problems such as wavelength changes and overheating of the drying equipment 10 as a whole. Therefore, although the various heat dissipation methods described above have different heat dissipation intensities, there is no absolute superiority or inferiority among them. In practical applications, a suitable heat dissipation method can be selected based on the power, size, and wavelength of the radiating component 13, as well as the speed of the motor 121 of the wind turbine component 12, the airflow of the first air duct a, and the air resistance of the second air duct b, to ensure that the radiating component 13 continuously operates within a suitable temperature range.

[0046] For example, if the drying equipment 10 is designed to cover a large area with infrared radiation, the size of the radiating component 13 may be large. If the entire radiating component 13 is located in the airflow, it may overheat and cause the temperature to drop too low. In this case, heat dissipation method (c) or heat dissipation method (f) can be used, that is, only the second part 132 of the radiating component 13 is cooled, while the first part 131 is not cooled. For example, if the drying equipment 10 is designed to output airflow with a high wind speed, the high airflow velocity in the first air duct a and / or the second air duct b may cause the temperature of the radiating component 13 to drop too low. In this case, heat dissipation method (a) or heat dissipation method (b) can be used to reduce the heat dissipation efficiency of the first part 131. For example, if the radiating component 13 in the drying equipment 10 is small in size and its heat dissipation area is also small, it may overheat. In this case, heat dissipation method (d) or heat dissipation method (e) can be used to fully dissipate heat from the radiating component 13.

[0047] In the aforementioned embodiments, the drying equipment 10 directly outputs airflow from the first air duct a to the target object, while the wind resistance and noise generated by the second part 132 on the airflow in the second air duct b do not directly affect the airflow in the first air duct a. This allows the drying equipment 10 to output high-speed, smooth airflow while meeting the heat dissipation requirements of the radiant component 12. Furthermore, the heat dissipation method of the radiant component 13 can be flexibly adjusted to achieve various design objectives of the drying equipment 10.

[0048] like Figure 1a As shown, in some embodiments of the drying device 10, the air-powered component 12 is at least partially disposed in the first air duct a. The motor 121 generates airflow directly in the first air duct a during operation, resulting in a high airflow velocity in the first air duct a. The second air duct b, influenced by the airflow from the first air duct a, forms its own airflow with a lower velocity.

[0049] The first part 131 of the radiation component 13 corresponds to the airflow in the first air duct a. The first part 131 or the airflow channel 111 needs to be designed to minimize wind noise and wind resistance so that the airflow in the first air duct a blows towards the target object at high speed and smoothly. The second part 132 corresponds to the airflow in the second air duct b. Since the airflow velocity in the second air duct b is slower, it is less affected by the wind noise and wind resistance of the second part 132. Furthermore, even if turbulence or wind noise occurs in the second air duct b, it will not directly affect the airflow in the first air duct a. Therefore, the second part 132 does not need to consider the impact on the wind speed and wind noise of the airflow in the second air duct b.

[0050] For the radiating component 13, its overall shape must first meet its functional requirements. Under this premise, it is sufficient to design its first part 131 with a shape that has low wind resistance or install an airflow channel 111 with low wind resistance. The shape of the second part 132 is not limited by wind resistance, thereby reducing the wind resistance limitation of the overall shape of the radiating component 13. Inside the drying equipment 10, the airflow in the second air duct b is guided to any part of the radiating component 13 for heat dissipation through relevant structures. This part constitutes the second part 132 of the radiating component 13.

[0051] In other embodiments not shown, the airflow assembly 12 of the drying device 10 is disposed in the second air duct b, directly forming airflow in the second air duct b. Correspondingly, the first air duct a is affected by the second air duct b to form airflow.

[0052] exist Figure 1a In some embodiments shown, a region within the housing 11 forms an air intake space c (the area enclosed by the dashed line in the illustration; the line is for indication only and does not limit the boundary of the region), and the wind turbine 12 is at least partially located downstream of the air intake space c (i.e., at least part of the air intake space c is located upstream of the wind turbine 12). The downstream of the second air duct b is indirectly or directly connected to the air intake space c. Direct connection means that the airflow enters the air intake space c after leaving the second air duct b; indirect connection means that the second air duct b is connected to the air intake space c through other structures such as pipes, cavities, channels, etc., and the airflow passes through other structures after leaving the second air duct b before entering the air intake space c. The following discussion of direct or indirect connections between other structures refers to the ability of airflow to flow freely between two interconnected structures in a direct or indirect manner, and will not be explained again.

[0053] The motor 121 in the wind turbine component 12 performs work on the air to form an airflow, creating a negative pressure upstream of the wind turbine component 12, i.e., a negative pressure environment is formed in the air intake space c. The downstream of the second air duct b is connected to the air intake space c, and the air in the second air duct b is affected by the negative pressure to form an airflow towards the air intake space c.

[0054] like Figure 1aAs shown, in some embodiments, after the airflow in the second air duct b enters the air intake space c, it all flows into the first air duct a, and the airflow in the first air duct a leaves the housing 11 through the airflow channel 111. In other words, all the airflow formed inside the drying device 10 flows out through the airflow channel 111, and the end of the airflow channel 111 facing out of the housing 11 can also be understood as the air outlet of the drying device 10.

[0055] like Figure 1e As shown, in some other embodiments, the first air duct a of the drying device 10 is provided with a first air force component 12a, and the second air duct b is provided with a second air force component 12b. In addition to the airflow channel 111, the housing 11 is also provided with a plurality of air outlets 111b communicating with the air intake space c. When the first air force component 12a and the second air force component 12b are running, they generate airflow in their respective air ducts. Depending on their operation, the airflow in the drying device 10 can be in the following ways: (1) When the second air force component 12b is running and the first air force component 12a is not running, the airflow generated in the second air duct b enters the air intake space c, part of which merges into the first air duct a to form airflow, and the other part leaves the housing 11 from the air outlet 111b. (2) When the second air force component 12b and the first air force component 12a are running at the same time, airflow is generated in the first air duct a and the second air duct b respectively. Furthermore, depending on the magnitude of the negative pressure formed by the first wind component 12a in the air intake space c, the airflow in the second air duct b may be affected by the negative pressure and all of it may flow into the first air duct a, or some of the airflow may not flow into the first air duct a and may leave the housing 11 from the air outlet 111b. (3) When the first wind component 12a is running and the second wind component 12b is not running, as mentioned above, the second air duct b generates airflow due to the negative pressure in the air intake space c, and all the airflow in the second air duct b flows into the first air duct a.

[0056] like Figure 1a , Figure 2a As shown, for ease of description, the part of the second air duct b that exchanges heat with the second part 132 is referred to as the middle section of the second air duct b2, and the part of the second air duct b that is upstream of the middle section of the second air duct b2 is referred to as the upstream section of the second air duct b1.

[0057] Since the air intake space c is located downstream of the second air duct b and upstream of the first air duct a, the portion of the second air duct b that connects to the air intake space c is roughly parallel to the first air duct a, and the airflow direction is opposite to that of the first air duct a. This portion is referred to as the downstream b3 of the second air duct. That is, the airflow in the second air duct b flows sequentially through the upstream b1, the middle b2, and the downstream b3 of the second air duct. It should be noted that there are no clear boundaries between the upstream b1, the middle b2, and the downstream b3 of the second air duct; these boundaries are merely for the convenience of describing the airflow direction in each part of the second air duct b.

[0058] In a more specific implementation, such as Figure 1a As shown, in the second air duct b, the second part 132 is located upstream of the air intake space c. That is, the airflow in the second air duct b first exchanges heat with the second part 132 of the radiation component 3, and then enters the downstream b3 of the second air duct and flows towards the air intake space c in a direction that is roughly parallel to and opposite to the first air duct a.

[0059] like Figure 1a As shown, in some embodiments, the downstream end of the wind turbine 12 is sealed and mounted to one end of the airflow channel 111, and the other end of the airflow channel 111 is connected to the outside of the housing 11 and forms the air outlet of the drying device 10. The upstream end of the wind turbine 12 is directly or indirectly connected to the air intake space c. When the motor 121 of the wind turbine 12 is running, its upstream end draws in airflow from the air intake space c, and its downstream end outputs airflow to the airflow channel 111. In other words, the wind turbine 12 and the airflow channel 111 together form at least a portion of the first air duct a.

[0060] In a more specific implementation, such as Figure 1a and Figure 4 As shown, the radiation assembly 13 includes a plurality of radiation sources 133 arranged in a ring or along a portion of a ring, and the airflow channel 111 is surrounded by one or more radiation sources 133. More specifically, the airflow channel 111 may be located on the axis of the ring of radiation sources 133, or it may be set off from the ring axis as needed.

[0061] When the drying equipment 10 dries the target object, the airflow generated by the wind component 12 flows over the surface of the target object, and the infrared radiation generated by the radiation component 13 forms a light spot on the target object. To achieve a better drying effect, the areas affected by the airflow and infrared radiation should overlap as much as possible. Since infrared radiation has good directionality, while airflow is prone to diffusion, the airflow channel 111 of the drying equipment 10 is set at the center of the area surrounded by the radiation component 13. The wind field formed by the airflow after it leaves the drying equipment 10 and diffuses at a preset distance roughly coincides with the light field formed by the infrared radiation at that location. When the distance between the target object and the drying equipment 10 is approximately the preset distance, the location where the infrared radiation forms a light spot on the target object is also exactly where the airflow passes, thus achieving a better drying effect. It is easy to understand that when multiple radiation sources 133 are arranged along a portion of a ring, their emission direction can also be deflected to a certain extent to achieve the above-mentioned technical effect.

[0062] In other embodiments not shown, the number of radiation sources 133 in the radiation assembly 13 may also be one, and it may be arranged side by side with the airflow channel 111. In this structure, the direction of light emission may also be deflected to a certain extent to achieve the above-mentioned technical effects.

[0063] In some more specific embodiments, at least a portion of the airflow channel 111 is formed by at least a portion of each of the radiation sources 133. As the airflow in the first duct a flows through the airflow channel 111, it comes into contact with and exchanges heat with at least a portion of each of the radiation sources 133, thereby uniformly dissipating heat from the multiple radiation sources 133. In some embodiments, one or more radiation sources 133 collectively form the entire airflow channel 111. In some embodiments, one or more radiation sources 133 collectively form a portion of the airflow channel 111, while other structures form another portion of the airflow channel 111.

[0064] In some other embodiments, the airflow channel 111 is an independent structure and is installed simultaneously on each of the radiation sources 133. In combination with some of the aforementioned embodiments, if the airflow channel 111 has good thermal conductivity, it can exchange heat with each of the radiation sources 133 simultaneously, providing the same heat dissipation effect to each of the radiation sources 133.

[0065] In some embodiments, a first heat source (not shown) is provided in the airflow channel 111. When the airflow in the first air duct a flows through the airflow channel 111, it is heated by the first heat source to form a hot airflow with a certain temperature, thereby increasing the drying effect of the drying device 10 and the user's comfort. In further embodiments, such as Figure 1b As shown, the airflow channel 111 is formed of heat-insulating material, such as mica, fiberglass, asbestos, rock wool, silicate, aerogel felt, vacuum plate, etc., which can achieve heat insulation. The airflow in the first air duct a does not exchange heat with the first part 131 of the radiating component 13 when flowing through the airflow channel 111. The first heat source heats the air when running within the airflow channel 111. If the airflow channel 111 is part of the radiating component 13 or has good thermal conductivity, the air in the airflow channel 111 will heat the radiating component 13, causing its temperature to become too high. To avoid this, the airflow channel 111 formed of heat-insulating material is installed in the first part 131 of the radiating component 13, thus insulating the first heat source in the airflow channel 111 from the radiating component 13, thereby preventing the radiating component 13 from being heated.

[0066] Furthermore, if the airflow velocity in the airflow channel 111 is sufficiently high, the airflow will carry away the heat generated by the first heat source, thereby preventing the radiant component 13 from being heated by the first heat source. Therefore, in some embodiments, the wind turbine 12 and the first heat source are controlled by a related control strategy. When the airflow velocity in the airflow channel 111 is greater than a preset value, the control allows the first heat source to operate. This ensures that the heat generated by the first heat source is carried away in real time by the airflow flowing through the airflow channel 111, thereby preventing it from heating the radiant component 13. When the airflow velocity in the airflow channel 111 is detected to be lower than a preset value, the control shuts off the first heat source. Therefore, the drying device 10 can also adopt this approach. Figure 1a The proposed scheme involves the first portion 131 of the radiating assembly 13 forming at least a partial airflow channel 111; or alternatively, the following scheme is employed. Figure 1b In the proposed scheme, an airflow channel 111 with good thermal conductivity is installed in the first part 131; thus, the airflow flowing through the airflow channel 111 can still dissipate heat from the first part 131 as needed (e.g., when the first heat source is not running).

[0067] like Figure 1a As shown, in some embodiments, a second heat source (not shown) is also provided in the air intake space c. The first and second heat sources are distinguished only by their location. The structures of the first and second heat sources can be the same or different, and can be formed by structures such as resistance wires and electrothermal ceramics. The second heat source generates heat upstream of the first air duct a, which also enables the drying equipment 10 to output hot airflow. Compared with the aforementioned first heat source, the second heat source is farther away from the radiation component 13, so it will not heat the radiation component 13 during operation, but the airflow it heats will flow through the fan component 12, causing the operating temperature of the fan component 12 to rise. In practical applications, it is necessary to weigh various factors such as the operating temperature of the radiation component 13, the operating temperature of the fan component 12, and the heating power of the first / second heat source, as well as parameters such as air temperature, air resistance, air volume, and air field, to design the first and second heat sources of the drying equipment 10 accordingly. Specifically, they can be any of the following structures:

[0068] (1) A first heat source is provided in the airflow channel 111 of the drying equipment 10. The airflow inside the drying equipment 10 is heated by the first heat source when it flows through the airflow channel 111.

[0069] (2) A second heat source is provided in the air intake space c of the drying equipment 10. The airflow inside the drying equipment 10 is heated by the second heat source in the air intake space c.

[0070] (3) The drying equipment 10 has a first heat source in the airflow channel 111 and a second heat source in the airflow channel 111. The airflow inside the drying equipment 10 is first heated by the second heat source in the air intake space c, and then heated a second time by the first heat source when it flows through the airflow channel 111.

[0071] like Figure 1a and Figure 4 As shown, in some embodiments of the drying apparatus 10, a flow guide sleeve 14 is provided inside the housing 11. The wind power assembly 12 is located inside the flow guide sleeve 14.

[0072] Please refer to this as well. Figure 2a , Figure 2b as well as Figure 3a , Figure 3bAs shown, a first gap duct 141 is formed between the wind turbine assembly 12 and the guide sleeve 14, allowing airflow to pass through. A second gap duct 142 is formed between the housing 11 and the guide sleeve 14, allowing airflow to pass through.

[0073] Figure 2a and Figure 2b In some specific embodiments shown, the second gap duct 142 constitutes at least a portion of the upstream of the second duct b1, and the first gap duct 141 constitutes at least a portion of the downstream of the second duct b3. That is, the airflow in the second duct b first enters between the housing 11 and the guide sleeve 14, flows along the second gap duct 142 to form the upstream of the second duct b1, exchanges heat with the second portion 132 of the radiation assembly 13, enters the guide sleeve 14, flows along the first gap duct 141 to form the downstream of the second duct b3, and then merges into the intake space c. In this embodiment, the airflow flowing along the first gap duct 141 is heated by the radiation assembly 13, and this heat is transferred to the fan assembly 12, causing the operating temperature of the motor 121 to rise.

[0074] Figure 3a and Figure 3b In some other specific embodiments shown, the first gap duct 141 constitutes at least a portion of the upstream b1 of the second duct, and the second gap duct 142 constitutes at least a portion of the downstream b3 of the second duct. That is, the airflow in the second duct b first enters the guide sleeve 14, flows along the first gap duct 141 to form the upstream b1 of the second duct, exchanges heat with the second portion 132 of the radiation assembly 13, and then flows along the second gap duct 142 to form the downstream b3 of the second duct, before converging into the intake space c. In this embodiment, the airflow flowing along the first gap duct 141 is not heated by the radiation assembly 13, and the motor 121 of the wind turbine assembly 12 can maintain a low operating temperature. However, the airflow flowing along the second gap duct 142 is heated by the radiation assembly 13, and its flow process heats the housing 11, causing the temperature of the housing 11 to rise.

[0075] The two implementation methods described above have opposite advantages and disadvantages. In practical use, the appropriate implementation method can be selected based on the actual temperature rise of the motor 121 and the housing 11. For example, if the operating temperature of the motor 121 of the drying equipment 10 is high, approaching the upper temperature limit of the wind turbine assembly 12 and nearby structures, then a different implementation method should be adopted accordingly. Figure 3a , Figure 3b The illustrated implementation avoids high-temperature airflow from the downstream b3 of the second air duct passing through the airflow assembly 12. For example, during the operation of the drying equipment 10, the radiant assembly 13 generates a large amount of heat, resulting in excessively high airflow temperature in the downstream b3 of the second air duct. If this is achieved... Figure 3a , Figure 3b The illustrated implementation may cause the housing 11 to overheat and burn the user, therefore a method is adopted. Figure 2a , Figure 2b The embodiment shown prevents the high-temperature airflow of the downstream b3 of the second air duct from flowing through the housing 11.

[0076] like Figure 2a , Figure 2b , Figure 3a , Figure 3b In some embodiments shown, a third gap duct 143 is formed between the second portion 132 and the housing 11, through which airflow can pass. The first gap duct 141, the third gap duct 143, and the second gap duct 142 are sequentially connected. The third gap duct 143 constitutes at least a portion of the middle section b2 of the second duct, and the airflow in the middle section b2 of the second duct exchanges heat with the second portion 132 of the radiation assembly 13.

[0077] In light of the foregoing, Figure 2a , Figure 2b In the illustrated embodiment, the airflow in the second air duct b flows sequentially along the second gap air duct 142, the third gap air duct 143, and the first gap air duct 141, and finally flows into the air intake space c. Figure 2c The diagram shows the airflow direction of each part inside the housing 11. The direction indicated by "·" in the diagram is outward perpendicular to the plane of the diagram, and the direction indicated by "×" is inward perpendicular to the plane of the diagram (the same applies to other diagrams, and will not be repeated below). As shown in the figure, the airflow direction in the first gap duct 141 is opposite to the airflow direction in the first duct a, and the airflow direction in the second gap duct 142 is the same as the airflow direction in the first duct a.

[0078] exist Figure 3a , Figure 3b In the illustrated embodiment, the airflow in the second air duct b flows sequentially along the first gap air duct 141, the third gap air duct 143, and the second gap air duct 142, and finally flows into the air intake space c. Figure 3c The diagram shows the airflow direction of each part inside the housing 11. The airflow direction in the first gap duct 141 is the same as the airflow direction in the first duct a, and the airflow direction in the second gap duct 142 is opposite to the airflow direction in the first duct a.

[0079] like Figure 2a , Figure 2b , Figure 3a , Figure 3b In some embodiments, the end of the guide sleeve 14 facing the radiation assembly 13 has a first air guide opening 144 that connects to the third gap air duct 143. In the aforementioned different embodiments, the airflow in the third gap air duct 143 can flow into the guide sleeve 14 through the first air guide opening 144, or the airflow in the guide sleeve 14 can flow out through the first air guide opening 144 and then enter the third gap air duct 143.

[0080] like Figure 5In some embodiments shown, the second portion 132 of the radiating assembly 13 is at least partially located between the guide sleeve 14 and the wind turbine assembly 12, such that the first airflow opening 144 is formed by the gap between the second portion 132 and the guide sleeve 14. In other words, the second portion 132 and the guide sleeve 14 each form a portion of the first airflow opening 144, and the airflow exchanges heat with the second portion 132 of the radiating assembly 13 as it flows through the first airflow opening 144. In other embodiments, such as Figure 2b As shown, the first air guide opening 144 is formed by the air guide sleeve 14 itself, or by the air guide sleeve 14 and the wind power assembly 12. The first air guide opening 144 faces the radiation assembly 13 to facilitate smooth airflow between the second part 132 and the first air guide opening 144.

[0081] In some implementations, such as Figure 4 and Figure 5 As shown, the radiation assembly 13 includes a drive circuit 135, a mounting base 134, and at least one radiation source 133. The drive circuit 135 and the at least one radiation source 133 are both mounted on the mounting base 134, which provides support for the entire radiation assembly 13. The mounting base 134 can be directly or indirectly fixed to the housing 11, or directly or indirectly fixed to the air guide sleeve 14.

[0082] The drive circuit 135 supplies power to the radiation source 133, enabling it to emit infrared radiation. During continuous operation, both the radiation source 133 and the drive circuit 135 generate heat. In some embodiments, such as... Figure 1a and Figure 4 As shown, at least a portion of the radiation source 133 constitutes the second portion 132, that is, the airflow in the second duct b dissipates heat from a portion of the radiation source 133. In other embodiments, such as Figure 4 and Figure 5 As shown, at least a portion of the radiation source 133 and at least a portion of the drive circuit 135 simultaneously constitute the second part 132, and the airflow in the second air duct b simultaneously dissipates heat from the radiation source 133 and the drive circuit 135. In some other embodiments not shown, at least a portion of the drive circuit 135 constitutes the second part 132, that is, the airflow in the second air duct b only dissipates heat from the drive circuit 135.

[0083] In some more specific implementations, such as Figure 4 and Figure 5As shown, the drive circuit 135 and the radiation source 133 are respectively mounted on both sides of the mounting base 134. The drive circuit 135 is located on the windward side of the mounting base 134, facing the wind turbine 12; the radiation source 133 is mounted on the leeward side of the mounting base 134, facing away from the wind turbine 12. When the airflow in the second air duct b dissipates heat from the radiation component 13, the airflow first flows through the drive circuit 135 and then through the radiation source 133, thus simultaneously dissipating heat from both the radiation source 133 and the drive circuit 135. In other embodiments, both the drive circuit 135 and the radiation source 133 can be mounted on the leeward side of the mounting base 134. This allows the drive circuit 135 and the radiation source 133 to be connected more easily without being separated by the mounting base 134. In this embodiment, the airflow is blocked by the mounting base 134, which has a certain impact on the heat dissipation of the drive circuit 135, and is suitable for drive circuits with relatively low heat generation.

[0084] In a more specific embodiment, the drive circuit 135 is provided with one or more vents or vents not shown in the figure, allowing airflow to pass through. Airflow can pass through the drive circuit 135 through the vents or vents, thereby reducing the wind resistance and noise impact of the drive circuit 135 on the airflow in the second air duct b. Here, a vent refers to a hole opened on the drive circuit 135, and a vent refers to a concave notch formed at the edge of the drive circuit 135. Furthermore, the wind resistance design of the drive circuit 135 as a whole can be optimized. For example, the vents and vents can be made arc-shaped, or flying wires and leads on the windward surface of the drive circuit 135 can be minimized, or related components or flying wires can be avoided from appearing within the vents or vents, in order to minimize the wind resistance and noise generated when airflow passes through the drive circuit 135.

[0085] like Figure 1a In some specific embodiments, the radiation source 133 includes a reflector (not shown) and a light-emitting element (not shown in the figure). The light-emitting element is installed inside the reflector, and the infrared radiation emitted outward by the light-emitting element is focused by the inner wall of the reflector and emitted to the outside of the drying device 10. The outer wall of the reflector constitutes the outer wall of the radiation assembly 13; therefore, in the relevant figures, the outer wall of the radiation assembly 13 can be regarded as the outer wall of the reflector. Figure 2b In the middle, a third gap air duct 143 is formed between part of the outer wall of the reflector cup and the housing 11. The airflow flowing in the third gap air duct 143 dissipates heat from the outer wall of the reflector cup.

[0086] More specifically, such as Figure 2b and Figure 4As shown, the reflector cup has a smaller outer diameter at one end (the mounting end of the light-emitting element) and a larger outer diameter at the other end (the light-emitting end). The smaller outer diameter end of the reflector cup is mounted on the mounting base 134, and a seal is formed between the outer wall of the larger outer diameter end of the light-emitting cup and the housing 11. A third gap air duct 143 is formed near the sealed part.

[0087] like Figure 2a and Figure 2b As shown, the size of the third gap air duct 143 gradually decreases along the direction of light emission from the radiating component 13. The airflow from the middle section b2 of the second air duct flows into the third gap air duct 143 and contacts the second part 132 of the reflector cup (radiating component 13) to achieve heat dissipation. The third gap air duct 143 constitutes the extreme position at the left end of the second air duct b in the figure. After the airflow flows into this area, it is guided to turn and turn back, flowing along the downstream section b3 of the second air duct towards the right end of the figure (i.e., in the direction of the air intake space c).

[0088] In some embodiments, a portion of the outer wall of the radiating component 13 (i.e., the outer wall of the reflector cup) is connected to the housing 11 and forms a second part 132, while another portion of the outer wall of the radiating component 13 (i.e., the outer wall of the reflector cup) forms a first part 131. In conjunction with some of the aforementioned embodiments, the first part 131 forms at least a portion of the airflow duct 111, so the entire outer wall of the radiating component 13 is located within the airflow, with a portion exchanging heat with the first airflow duct a and another portion exchanging heat with the second airflow duct b. That is, the radiating component 13 is entirely located within the airflow formed inside the drying device 10, with high-speed airflow flowing through its lower resistance portion and low-speed airflow flowing through its higher resistance portion, thus achieving both effective heat dissipation and low wind noise and resistance.

[0089] like Figure 3a and Figure 3b As shown, in some embodiments, the first gap duct 141 constitutes at least a portion of the upstream of the second duct b1. The end of the guide sleeve 14 furthest from the radiating assembly 13 forms a mutual seal with the wind turbine assembly 12. In other words, the end of the guide sleeve 14 near the radiating assembly 13 is an open end (with a first air guide opening 144), and the other end is a closed end, restricting the airflow in the first gap duct 141 to flow only towards the radiating assembly 13. More specifically, the end of the guide sleeve 14 near the air intake space c has an end wall 146, which connects to the outer wall or end of the wind turbine assembly 12 and forms a mutual seal with the wind turbine assembly 12, thereby closing that end of the guide sleeve 14.

[0090] like Figure 2a and Figure 2bIn some other embodiments shown, the first gap duct 141 constitutes at least a portion of the downstream of the second duct b3, and the guide sleeve 14 has a second air guide opening 145 at the end away from the radiation assembly 13, the second air guide opening 145 directly or indirectly connecting to the air intake space c. In other words, both ends of the guide sleeve 14 are open ends, allowing airflow to enter from one end and exit from the other. Because a negative pressure is created in the air intake space c during the operation of the wind turbine assembly 12, the airflow within the guide sleeve 14 is guided to enter the guide sleeve 14 from the first air guide opening 144, then exit from the second air guide opening 145 and merge into the air intake space c. Figure 2c The airflow direction inside the guide sleeve 14 is opposite to the airflow direction in the first air duct a.

[0091] In some implementations, reference may be made to Figure 2c , Figure 3c As shown, the wind turbine component 12 is cylindrical or conical, and the guide sleeve 14 is cylindrical or conical. The annular space formed between the wind turbine component 12 and the guide sleeve 14 constitutes the first gap air duct 141. When the airflow in the second air duct b flows in the first gap air duct 141, it is evenly distributed in the annular space around the outer wall of the wind turbine component 12. Figure 3a , Figure 3b , Figure 3c In the illustrated configuration, an annular airflow exiting the first gap duct 141 provides uniform heat dissipation to the second portion 132. In conjunction with some of the aforementioned embodiments, the radiating assembly 13 includes a plurality of annularly arranged radiation sources 133, and the annular airflow provides the same heat dissipation effect to each radiation source 133, thereby enabling each radiation source 133 to operate at the same operating temperature.

[0092] In some embodiments, the guide sleeve 14 is cylindrical or conical, and the housing 11 is cylindrical or conical. The annular space formed between the guide sleeve 14 and the housing 11 constitutes a second gap duct 142. When the airflow in the second duct 142 flows, it is evenly distributed in the annular space around the outer wall of the guide sleeve 14. Figure 2a , Figure 2c As shown, the airflow flowing out of the second gap duct 142 also contacts the radiation component 13 in a ring shape, thereby providing uniform heat dissipation to the radiation component 13.

[0093] like Figure 2c or Figure 3c As shown, in some embodiments, the first gap duct 141 and the second gap duct 142 are both annular, and the airflow in them is distributed approximately evenly in the radial direction, which enables the airflow to flow smoothly between them.

[0094] like Figure 1aAs shown, in some embodiments, the housing 11 of the drying device 10 includes a main body 114 and a handle 115. The radiation assembly 13 and the first air duct a are located within the main body 114, and the main body 114 has a first airflow inlet 112, which communicates directly or indirectly with the air intake space c. One end of the handle 115 is connected to the main body 114, and a second air duct b is at least partially located in the handle 115. The handle 115 has a second airflow inlet 1151 that communicates directly or indirectly with the second air duct b.

[0095] When the wind turbine component 12 is running, it creates a negative pressure in the air intake space c. Under the influence of this negative pressure, airflow is formed in the first air duct a and the second air duct b. The specific flow path is as follows:

[0096] First air duct a: Air in the intake space c is drawn in by the fan assembly 12, forming a high-speed airflow that flows along the fan assembly 12 and the airflow channel 111 and exits the drying device 10. Part of the air in the intake space c comes from the first airflow inlet 112, and the other part comes from the second air duct b.

[0097] Second air duct b: External air enters the handle 115 through the second airflow inlet 1151, flows along the inside of the handle 115 and then enters the main body 114. After entering the main body 114, there are at least two flow paths and they all eventually flow into the air intake space c. For details, please refer to the previous text.

[0098] As can be seen from the above process, the drying device 10 simultaneously draws in air from the first air inlet 112 and the second air inlet 1151, and outputs air through the airflow channel 111. Even if one of the first air inlet 112 or the second air inlet 1151 is blocked, the drying device 10 can still output airflow and provide a certain drying effect.

[0099] like Figure 6 In some embodiments shown, the first airflow inlet 112 and the second airflow inlet 1151 of the drying device 10 are both located on the main body 114. Air enters only from the main body 114, forming a first air duct a and a second air duct b within the main body 114, while no airflow is formed within the handle 115. In other embodiments not shown, the first airflow inlet 112 and the second airflow inlet 1151 may also be located on the handle 115, meaning that air enters the housing 11 only from the handle 115 and then flows to the main body 114.

[0100] exist Figure 6 In the embodiment shown, the first airflow inlet 112 and the second airflow inlet 1151 are arranged adjacent to each other and located at the same end of the main body 114.

[0101] Figure 7Some other embodiments are shown, in which the second airflow inlet 1151 is located away from the first airflow inlet 112, and the two are set at different positions on the main body 114, allowing airflow to enter the main body 114 from different positions. More specifically, the second airflow inlet 1151 is located on the housing 11 near the second part 132 of the radiation component 13. After the airflow enters the housing 11 through the second airflow inlet 1151, it exchanges heat with the second part 132 and forms the second air duct b. In some other embodiments not shown, the second part 132 and the housing 11 together form the second airflow inlet 1151, that is, a gap is reserved between the housing 11 and the radiation component 13, and this gap forms the second airflow inlet 1151. During the process of gas entering the second airflow inlet 1151, it simultaneously exchanges heat with the second part 132.

[0102] like Figure 1a and Figure 4 As shown, in some embodiments, the housing 11 further includes a connecting portion 116 communicating between the body 114 and the handle 115. The interior of the connecting portion 116 forms a channel allowing airflow from the handle 115 to enter the body 114. The connecting portion 116 itself constitutes a structural connection between the handle 115 and the body 114, ensuring the strength of the connection between them.

[0103] In some specific implementation methods, such as Figure 3a , Figure 3b As shown, one end of the connecting part 116 is directly or indirectly connected to the handle 115, and the other end is directly or indirectly connected to the first gap air duct 141. The airflow in the handle 115 enters the first gap air duct 141 along the connecting part 116, and then flows sequentially along the third gap air duct 143, the second gap air duct 142, and the air intake space c.

[0104] More specifically, an opening is provided on the guide sleeve 14, and the connecting part 116 communicates with the opening. After the airflow in the handle 115 flows along the connecting part 116, it enters the interior of the guide sleeve 14 through the opening and flows along the first gap air passage 141. In conjunction with some of the aforementioned embodiments, one end of the guide sleeve 14 is a closed end, and the airflow entering the guide sleeve 14 is restricted to flowing only towards the first air guide opening 144. The airflow direction in the connecting part 116 and the first gap air passage 141 can also be referenced. Figure 3c As shown.

[0105] like Figure 2a , Figure 2bIn some other embodiments shown, one end of the connecting portion 116 is directly or indirectly connected to the handle 115, and the other end is directly or indirectly connected to the second gap air duct 142. Correspondingly, the airflow from the handle 115 enters the second gap air duct 142 along the connecting portion 116, and then flows sequentially along the third gap air duct 143 and the first gap air duct 141 before finally flowing into the air intake space c.

[0106] More specifically, the portion of the connecting part 116 near the radiating component 13 has a notch, while the portion of the connecting part 116 away from the radiating component 13 is sealed off from the guide sleeve 14. The connecting part 116 communicates with the second gap duct 142 through the notch, restricting the airflow from the connecting part 116 into the main body 114 to flow only towards the notch and then into the second gap duct 142. The airflow direction within the connecting part 116 and the second gap duct 142 can be referenced. Figure 2c As shown.

[0107] In some specific implementations, such as Figure 4 As shown, the connecting part 116 is a hollow cylindrical structure. One end of the connecting part 116 is inserted into the body 114, and this end can be integrally formed with the shell 11. The other end of the connecting part 116 is exposed outside the body 114. During the production and assembly process of the drying equipment 10, the exposed end of the connecting part 116 is inserted into the handle 115, and the connecting part 116 and the handle 115 are fixed to each other by means of adhesive, screws, snap-fit, etc., thus completing the installation and fixing between the handle 115 and the body 114. In other embodiments, the connecting part 116 can also be integrally formed with the handle 115, and inserted into the body 114 and fixed to the body 114 during assembly. In other embodiments, the connecting part 116 can also be an independent structure, and during assembly, both ends of the connecting part 116 are respectively assembled and fixed to the body 114 and the handle 115.

[0108] like Figure 1a As shown, in some embodiments, the air intake space c is provided with a filter structure 117, which is sealed and installed at the upstream end of the wind turbine assembly 12. The filter structure 117 divides the air intake space c into a first space and a second space, wherein the first space is located inside the filter structure 117 and communicates with the upstream end of the wind turbine assembly 12. The second space is located outside the filter structure 117 and communicates with the first airflow inlet 112 and the second air duct b. The airflow from the first airflow inlet 112 and the second air duct b must pass through the filter structure 117 to enter the first space of the air intake space c, and then be drawn into the first air duct a by the wind turbine assembly 12.

[0109] The filter structure 117 not only prevents dust, hair and other foreign objects from entering the wind turbine 12, but also absorbs the high-frequency noise generated by the operation of the wind turbine 12, thereby reducing the noise heard by the user when using the drying equipment 10.

[0110] like Figure 1a As shown, in some more specific embodiments, the filter structure 117 has an inner filter wall 1172, an outer filter wall 1171, and a plurality of filter channels 1173 formed between the inner filter wall 1172 and the outer filter wall 1171. The second air duct b and the first airflow inlet 112 are directly or indirectly connected to the filter channels 1173. In other words, when the wind power assembly 12 is running, the outer filter wall 1171 forms the air inlet surface of the filter structure 117, and the inner filter wall 1172 forms the air outlet surface of the filter structure 117.

[0111] For the airflow from the second air duct b and the first airflow inlet 112, it needs to pass through multiple filter channels 1173 from the outer filter wall 1171 to the inner filter wall 1172 before entering the first space of the air intake space c, and then entering the fan assembly 12 to flow along the first air duct a. The airflow is filtered when passing through the filter channels 1173, and foreign objects are blocked outside the outer filter wall 1171. As for the high-frequency noise generated by the fan assembly 12, it propagates along the following path: the first space of the air intake space c, the inner filter wall 1172, the filter channels 1173, the outer filter wall 1171, the second space of the air intake space c, and the first airflow inlet 112. In the above process, most of the high-frequency noise is absorbed when passing through the filter channels 1173, thereby reducing the high-frequency noise heard by the user from the first airflow inlet 112 when using the drying equipment 10.

[0112] like Figure 1a As shown, in some embodiments, the first airflow inlet 112 may be annular, or the first airflow inlet 112 may include a plurality of holes arranged in annular pattern. After air enters the housing 11 through the first airflow inlet 112, it forms a generally annular airflow in the second space of the intake space c and flows toward the outer wall of the filter structure 117, uniformly passing through the filter channel 1173 from the outer wall of the filter along the radial direction of the filter structure 117 into the first space of the intake space c.

[0113] In some more specific embodiments, on any plane perpendicular to the axis of the first air duct a, the projected pattern formed by the filter structure 117 is located inside the projected pattern formed by the first airflow inlet 112. Thus, the airflow entering the housing 11 from the first airflow inlet 112 is located in the second space of the intake space c and surrounds the outside of the filter structure 117, then enters the first space of the intake space c through the filter channel 1173. The airflow from the first airflow inlet 12 flows uniformly into the first space of the intake space c in the circumferential direction, which helps to improve the smoothness of the airflow in the first air duct a.

[0114] In a more specific embodiment, the filter structure 117 extends generally along the axial direction of the first air duct a, and the filter channel 1173 extends generally along the radial direction of the first air duct a. The airflow from the first airflow inlet 112 and the airflow from the downstream b3 of the second air duct both pass radially through the filter channel 1173 and into the aforementioned enclosed space, and then merge into the upstream end of the wind power component 12 to form the airflow in the first air duct a.

[0115] refer to Figure 1a The airflow from the second air duct b flows roughly to the right (opposite to the airflow direction in the first air duct a) into the intake space c, while the airflow from the first airflow inlet 112 flows roughly to the left (same as the airflow direction in the first air duct a) into the intake space c. Therefore, in the intake space c, the flow directions of these two airflows are exactly opposite, and both are roughly perpendicular to the extension direction of the filter channel 1173. When they pass radially through the filter structure 117, they mix to form airflows with roughly the same direction, creating a relatively stable airflow within the filter structure 117, which then converges at the upstream end of the wind turbine assembly 12. If the intake space c does not have a filter structure 117, not only will the aforementioned filtering and noise reduction effects be impossible, but the convergence of the two opposing airflows in the intake space c will also generate turbulence, affecting the operating noise of the wind turbine assembly 12 and the smoothness of the output airflow.

[0116] In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0117] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0118] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A drying device, comprising a housing, characterized in that, The housing contains: The first air duct, through which airflow exits the housing; Second air duct; A wind power component, including a motor, for generating airflow in the first air duct and / or the second air duct; A radiating assembly, comprising a first part and a second part; The first portion forms at least a portion of the airflow channel, or the airflow channel is installed in the first portion; The second part exchanges heat with the airflow in the second air duct, and at least a portion of the airflow in the first air duct comes from outside the second air duct; The housing is provided with a flow guide sleeve, the wind power component is located inside the flow guide sleeve, a first gap air duct is formed between the wind power component and the flow guide sleeve for airflow to pass through, and a second gap air duct is formed between the housing and the flow guide sleeve for airflow to pass through. The first gap duct forms at least a portion of the upstream of the second duct, and the second gap duct forms at least a portion of the downstream of the second duct; or, The second gap duct constitutes at least a portion of the upstream of the second duct, and the first gap duct constitutes at least a portion of the downstream of the second duct.

2. The drying equipment according to claim 1, characterized in that, The wind power component is at least partially disposed in the first air duct and is used to generate airflow in the first air duct.

3. The drying equipment according to claim 2, characterized in that, An air intake space is formed within the housing, and the wind power component is located at least partially downstream of the air intake space. The downstream of the second air duct is directly or indirectly connected to the air intake space.

4. The drying equipment according to claim 3, characterized in that, All the airflow from the second air duct flows into the first air duct.

5. The drying equipment according to claim 4, characterized in that, At least a portion of the airflow in the second air duct flows in the opposite direction to the airflow in the first air duct.

6. The drying equipment according to claim 5, characterized in that, The airflow in the middle of the second air duct exchanges heat with the second part, and at least part of the airflow in the lower part of the second air duct flows in the opposite direction to the airflow in the first air duct.

7. The drying equipment according to claim 3, characterized in that, The downstream end of the wind turbine component is sealed and installed in the airflow channel, and the upstream end of the wind turbine component is directly or indirectly connected to the air intake space.

8. The drying equipment according to claim 1, characterized in that, The radiation assembly includes one or more radiation sources, each of which is arranged along a ring or a portion of a ring, and the airflow channel is surrounded by one or more of the radiation sources.

9. The drying equipment according to claim 8, characterized in that, At least a portion of each of the radiation sources together form at least a portion of the airflow channel, or the airflow channel is simultaneously installed on each of the radiation sources.

10. The drying equipment according to claim 1, characterized in that, The airflow channel is equipped with a first heat source.

11. The drying equipment according to claim 10, characterized in that, The airflow channel is formed of heat-insulating material.

12. The drying equipment according to claim 3, characterized in that, The air intake space is equipped with a second heat source.

13. The drying equipment according to claim 1, characterized in that, A portion of the outer wall of the radiation component is connected to the housing and forms the second part, while another portion of the outer wall of the radiation component forms the first part.

14. The drying equipment according to claim 1, characterized in that, A third gap air duct is formed between the second part and the housing, through which airflow can pass. The first gap air duct, the third gap air duct, and the second gap air duct are connected in sequence, and the third gap air duct constitutes at least a portion of the middle section of the second air duct.

15. The drying apparatus according to claim 14, characterized in that, The end of the guide sleeve facing the radiation component has a first air guide opening that connects to the third gap air duct.

16. The drying apparatus according to claim 15, characterized in that, The second part is at least partially located between the guide sleeve and the wind power component, and the gap between the second part and the guide sleeve forms the first air guide opening.

17. The drying apparatus according to claim 16, characterized in that, The radiation assembly includes a drive circuit, a mounting base, and at least one radiation source; At least a portion of the radiation source constitutes the second part; and / or, at least a portion of the driving circuit constitutes the second part.

18. The drying apparatus according to claim 17, characterized in that, The drive circuit is provided with one or more vent holes or vents through which airflow can pass.

19. The drying apparatus according to claim 17, characterized in that, The radiation source includes a reflector cup and a light-emitting element installed inside the reflector cup, and a portion of the outer wall of the reflector cup and the housing form at least a portion of the third gap air duct.

20. The drying equipment according to claim 1, characterized in that, The first gap duct forms at least a portion of the upstream of the second duct, and the end of the guide sleeve away from the radiation component is mutually sealed with the wind component.

21. The drying equipment according to claim 1, characterized in that, The first gap duct forms at least a portion of the downstream of the second duct, and the guide sleeve has a second air guide opening at the end away from the radiation component.

22. The drying equipment according to claim 1, characterized in that, The wind turbine component is cylindrical or conical, the guide sleeve is cylindrical or conical, and the annular space formed between the wind turbine component and the guide sleeve constitutes the first gap air duct; And / or, The guide sleeve is cylindrical or conical, and the housing is cylindrical or conical. The annular space formed between the guide sleeve and the housing constitutes the second gap duct.

23. The drying equipment according to claim 1, characterized in that, The housing includes: The main body, the radiation component and the first air duct are located inside the main body, and the main body has a first airflow inlet that is directly or indirectly connected to the first air duct; A handle, one end of which is connected to the main body, and the second air duct is at least partially located on the handle. The handle has a second airflow inlet that is directly or indirectly connected to the second air duct.

24. The drying equipment according to claim 23, characterized in that, The housing also includes a connecting portion connecting the main body and the handle; One end of the connecting part is directly or indirectly connected to the handle, and the other end is directly or indirectly connected to the first gap air duct. or, One end of the connecting part is directly or indirectly connected to the handle, and the other end is directly or indirectly connected to the second gap air duct.

25. The drying apparatus according to claim 24, characterized in that, The guide sleeve has an opening, and the connecting part is connected to the opening.

26. The drying apparatus according to claim 24, characterized in that, The portion of the connecting part near the radiating component has a notch, and the connecting part communicates with the second gap duct through the notch; The portion of the connection away from the radiation component is mutually sealed with the flow guide sleeve.

27. The drying equipment according to claim 1, characterized in that, The housing is provided with a first airflow inlet and a second airflow inlet. The first air duct is directly or indirectly connected to the first airflow inlet, and the second air duct is directly or indirectly connected to the second airflow inlet.

28. The drying equipment according to claim 3, characterized in that, The housing is provided with a first airflow inlet, which is directly or indirectly connected to the air intake space.

29. The drying apparatus according to claim 28, characterized in that, The air intake space is equipped with a filter structure, which is sealed and installed at the upstream end of the wind turbine component. The airflow from the first airflow inlet and the second air duct enters the wind power component after passing through the filter structure.

30. The drying equipment according to claim 29, characterized in that, The filter structure has an inner filter wall, an outer filter wall, and multiple filter channels formed between the inner filter wall and the outer filter wall. The second air duct and the first airflow inlet are directly or indirectly connected to the filter channels.

31. The drying apparatus according to claim 30, characterized in that, Each of the filter channels extends radially along the first air duct.

32. The drying equipment according to claim 30, characterized in that, The first airflow inlet is annular, or the first airflow inlet includes a plurality of holes arranged in annular shape.

33. The drying equipment according to claim 1, characterized in that, The drying equipment has a first airflow inlet and a second airflow inlet that are independent of each other; The first airflow inlet is directly or indirectly connected to the first air duct; The second airflow inlet is directly or indirectly connected to the second air duct, and the air entering the housing from the second airflow inlet flows through the second part.

34. The drying equipment according to claim 33, characterized in that, The housing is provided with the second airflow inlet; or, the housing and the second part together form the second airflow inlet.

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