Infrared radiant air heater
By incorporating infrared radiation heating and an induced draft fan design, the problem of low energy utilization in existing hot air generators has been solved, achieving rapid heating and energy savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG KERISEN MACHINERY EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing hot air generators, which use interfacial heat exchange heating, suffer from problems such as low energy utilization, slow heating speed, and high energy consumption.
Infrared radiation heating is used, which directly heats the molecules in the air by combining an infrared irradiator and a passive transceiver component. It generates heat energy by using infrared radiation, and improves sealing and heating efficiency by combining the design of an induced draft fan and a filter screen.
It achieves rapid air heating, saves energy, increases heating rate, reduces sealing costs, and ensures air cleanliness.
Smart Images
Figure CN224580449U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hot air generator technology, and in particular to an infrared radiation hot air generator. Background Technology
[0002] A hot air generator, also known as a hot air blower, is an industrial heat source device mainly used in industries such as electronics, food, biopharmaceuticals, and printing and packaging. As the core heat source for automated machinery such as drying ovens, baking ovens, and packaging machines, it often uses common heating methods such as resistance wire heating and electromagnetic induction heating. That is, it relies on heat transfer and only depends on the surface area of the heating element and the temperature difference between the heat source and the air to exchange heat with the air. Due to the small actual exchange area and the low temperature of the heat source, this heating method has the problems of low energy utilization, slow heating speed, and high energy consumption. Utility Model Content
[0003] The purpose of this application is to provide an infrared radiation hot air generator, which to some extent solves the technical problems of low energy utilization, slow heating speed and high energy consumption in the existing heating method that is mainly based on interface heat exchange.
[0004] This application provides an infrared radiation hot air generator, comprising: at least one heating component, each of the heating components including an infrared irradiator and a passive transceiver component; wherein the passive transceiver component is disposed opposite to the infrared irradiator, and the infrared irradiator is used to emit infrared waves when energized; the passive transceiver component is used to receive and diffuse the infrared waves.
[0005] In the above technical solution, the infrared irradiator is a tube, the passive transceiver is a finned sleeve, and the passive transceiver is sleeved on the outside of the infrared irradiator, and both extend in the same direction.
[0006] In any of the above technical solutions, further, along the radial direction of the passive transceiver component, the distance between the passive transceiver component and the infrared irradiator is less than 3 cm.
[0007] In any of the above technical solutions, the infrared irradiator is further defined as a plate structure, the passive transceiver is a plate structure with fins on its outer surface, and the plate-shaped main body of the passive transceiver is arranged parallel to the infrared irradiator, and the two are arranged sequentially along a direction that forms an angle with the direction of airflow inside the infrared radiation hot air generator.
[0008] In any of the above technical solutions, further, along the direction perpendicular to the thickness of the plate-shaped body of the passive transceiver, the distance between the plate-shaped body of the passive transceiver and the infrared irradiator is less than 3 cm.
[0009] In any of the above technical solutions, the infrared irradiator is further described as a graphene electric heating element.
[0010] In any of the above technical solutions, the emissivity of the passive transceiver component is further greater than 0.85.
[0011] In any of the above technical solutions, the direction of airflow inside the infrared radiation hot air generator is a first preset direction, and the infrared irradiator and the passive transceiver are both arranged along a direction perpendicular to the first preset direction.
[0012] In any of the above technical solutions, the infrared radiation hot air generator further includes an inner shell and a heat insulation plate; wherein, the interior of the inner shell is a heat source cavity, and all the heating components are disposed in the heat source cavity, and the passive transceiver component of the heating component is fixed to the inner shell, and the infrared irradiator of the heating component is fixed to the passive transceiver component or the inner shell; the heat insulation plate is disposed on the outer periphery of the inner shell; along the first preset direction, a first auxiliary air inlet and a first auxiliary air outlet are respectively formed at both ends of the inner shell.
[0013] In any of the above technical solutions, the emissivity of the inner shell is further greater than 0.85.
[0014] In any of the above technical solutions, the thermal conductivity of the insulation board is further less than 0.03 W / m·K.
[0015] In any of the above technical solutions, the infrared radiation hot air generator further includes an exhaust fan and a second air guide hood; wherein, along the first preset direction, the exhaust fan and the second air guide hood are both disposed on one side of the first auxiliary air outlet of the inner shell, and the exhaust fan is connected to the first auxiliary air outlet through the second air guide hood.
[0016] In any of the above technical solutions, the infrared radiation hot air generator further includes a first air guide hood and a filter; wherein, along the first preset direction, the first air guide hood is disposed on one side of the first auxiliary air inlet of the inner shell; the first air guide hood forms an air guide channel and a second auxiliary air inlet and a second auxiliary air outlet connected to the air guide channel, and along the first preset direction, the second auxiliary air inlet and the second auxiliary air outlet are respectively disposed at opposite ends of the first air guide hood, and the second auxiliary air outlet is connected to the first auxiliary air inlet of the inner shell; The filter screen is installed inside the first air guide hood and blocks the air guide channel along the first preset direction, so that the air entering from the second auxiliary air inlet enters the heat source cavity after being filtered by the filter screen.
[0017] In any of the above technical solutions, the inner shell further includes a main cover and an air inlet guide hood and an air outlet guide hood connected to the main cover; wherein, along the first preset direction, the air inlet guide hood and the air outlet guide hood are respectively disposed at opposite ends of the main cover; Along the first preset direction and toward the main cover, the air inlet guide hood is gradually expanding; along the first preset direction and away from the main cover, the air outlet guide hood is gradually contracting.
[0018] In any of the above technical solutions, the infrared radiation hot air generator further includes an outer shell and a top cover; wherein, the inner shell is disposed within the outer shell, and the outer shell forms a main air inlet corresponding to and connected to the first auxiliary air inlet of the inner shell, and the outer shell forms a main air outlet corresponding to and connected to the first auxiliary air outlet of the inner shell; a top opening is formed at the top of the outer shell, and the top cover is detachably installed at the top opening of the outer shell.
[0019] In any of the above technical solutions, at least one sidewall of the inner shell is an arc-shaped structure that protrudes toward the heating assembly.
[0020] In any of the above technical solutions, the inner shell is further made of metal.
[0021] In any of the above technical solutions, the number of heating components is further specified, the first preset direction is horizontal, and the multiple heating components are arranged in a row along the first preset direction and the vertical direction, with the heating components in each row and each column being staggered.
[0022] Compared with the prior art, the beneficial effects of this application are as follows: This application provides a novel hot air generator that heats the air in the near-field area directly through infrared irradiation, achieving rapid temperature rise in that area. In other words, after the infrared radiation is excited, the entire heating chamber is filled with high-density infrared rays. When air flows through, the infrared rays directly act on the water and CO2 in the air, exciting molecular resonance to generate heat energy. This is not simply the method of heating the air by exchanging heat between the surface of the heating element and the flowing air, as is used in existing technologies. This greatly saves energy consumption and improves the heating rate.
[0023] In contrast to the existing technology where the blower is placed on one side of the air inlet of the outer cover, this application replaces the blower with an exhaust fan and places the exhaust fan on one side of the first auxiliary air outlet of the insulation cover. In other words, the original direct air blowing form is changed to an exhaust fan form, which changes the positive pressure in the heat source cavity to a negative pressure. This is more conducive to the sealing structure of the insulation cover, helps to improve the sealing performance and reduce the sealing requirements, and thus helps to reduce costs. This application includes a filter screen, which can filter out particulate matter and other contaminants in the air, preventing them from accumulating in the heat source cavity and reducing heating efficiency, while ensuring the cleanliness of the air. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of an infrared radiation hot air generator provided in an embodiment of this application; Figure 2 Another structural schematic diagram of the infrared radiation hot air generator provided in the embodiments of this application; Figure 3 This is a partial structural schematic diagram of an infrared radiation hot air generator provided in an embodiment of this application; Figure 4 An assembly drawing of the heating assembly and the inner shell provided in the embodiments of this application; Figure 5 An assembly drawing of the inner shell, the first air guide shroud, and the second air guide shroud provided for embodiments of this application; Figure 6 Another assembly drawing of the inner shell, the first air guide shroud, and the second air guide shroud provided for an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the heating assembly provided in an embodiment of this application; Figure 8 This is another structural schematic diagram of the heating assembly provided in an embodiment of this application.
[0026] Figure label: 1-Heating component, 101-Infrared irradiator, 102-Finned sleeve, 2-Inner shell, 21-Main cover, 22-Inlet air guide hood, 23-Outlet air guide hood, 3-Exhaust fan, 4-Second air guide hood, 5-First air guide hood, 6-Filter screen, 7-Heat insulation board, 8-Outer shell, 9-Top cover, 10-Support beam, 11-Bracket, a-First preset direction, b-Vertical direction. Detailed Implementation
[0027] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.
[0028] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.
[0029] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0032] The following reference Figures 1 to 8 This application describes an infrared radiation hot air generator according to some embodiments.
[0033] Example 1 See Figures 1 to 8As shown, an embodiment of this application provides an infrared radiation hot air generator, including: at least one heating component 1, each heating component 1 including an infrared irradiator 101 and a passive transceiver component, namely the finned sleeve 102 shown below; wherein, the passive transceiver component is disposed opposite to the infrared irradiator 101, and the infrared irradiator 101 is used for heating by electricity and emitting infrared waves; the passive transceiver component, namely the finned sleeve 102 shown below, is used for receiving and diffusing infrared waves.
[0034] As described above, the novel hot air generator provided in this application heats the air by directly acting on the near-field region through infrared irradiation, achieving rapid and continuous heating of this portion of the air. In other words, after infrared wave radiation, the entire heating cavity is filled with high-density far-infrared rays. When air flows through, the far-infrared rays directly act on the gas molecules, exciting molecular resonance to generate heat energy, rather than simply heating the air through heat exchange between the surface of the heating element and the flowing air, as is common in existing technologies. This significantly saves energy consumption and increases the heating rate. Therefore, this application directly heats the air through the dense oscillation of infrared waves within a certain space, expanding the heat exchange surface into a heat exchange domain, achieving efficient energy utilization and rapid temperature rise.
[0035] It should be noted that the structure of the passive transceiver is not limited to the finned sleeve 102, but can also be other structures, which will be described later. In this embodiment, preferably, as follows: Figures 4 to 8 As shown, the infrared irradiator 101 is a tubular component, and the passive transceiver component is a finned sleeve 102, i.e., a finned tube. The passive transceiver component is sleeved on the outside of the infrared irradiator 101, and both extend in the same direction. Preferably, both extend along a direction perpendicular to the first preset direction a described below, but this is not the only possibility. As can be seen from the structure described above, after the far-infrared cup finned sleeve 102 absorbs the infrared rays, it emits a large number of infrared waves again due to its high emissivity. At the same time, due to the structure of the finned sleeve 102, the area that can emit infrared waves is increased, which helps to improve the heating effect.
[0036] Furthermore, preferably, the finned sleeve 102 includes a pipe fitting and fins disposed on the outer wall of the pipe fitting, wherein the fins are arranged in a spiral shape along the length of the pipe fitting. Of course, the structure of the fins is not limited to the above, and the number of fins can be one or more, depending on the actual needs.
[0037] Furthermore, preferably, the finned sleeve 102, i.e. the finned tube, is hollow inside and has openings at both ends along the first preset direction a described below, which facilitates the lead-out operation of the wiring harness connected to the internal infrared irradiator 101 and avoids interference, etc.
[0038] In this embodiment, preferably, as follows: Figures 6 to 8 As shown, along the radial direction of the passive transceiver component, the distance between the passive transceiver component, i.e., the finned sleeve 102, and the infrared irradiator 101 is less than 3 cm. As can be seen from the structure described above, if the distance between the passive transceiver component, i.e., the finned sleeve 102, and the infrared irradiator 101 is too large, it will cause a large attenuation of the infrared wave and affect the heating efficiency. Therefore, the distance between the passive transceiver component, i.e., the finned sleeve 102, and the infrared irradiator 101 should be less than 3cm.
[0039] It should be noted that the distance between the passive transceiver component, i.e., the finned sleeve 102, and the infrared irradiator 101 is less than 3cm, which is a preferred range. However, the distance between the passive transceiver component, i.e., the finned sleeve 102, and the infrared irradiator 101 is not limited to less than 3cm, but can also be greater than 3cm, depending on the actual needs.
[0040] In this embodiment, preferably, the infrared irradiator 101 is a graphene electric heating element, which directly acts on the air in the near field region of the element through infrared irradiation, thereby achieving rapid and continuous heating of this part of the air. Furthermore, preferably, the infrared irradiator 101 can be a graphene film coated on a tubular substrate, which is in direct contact with air. This film is both an infrared exciter and a heat sink with a high heat transfer coefficient. In this embodiment, preferably, the emissivity of the passive transceiver is greater than 0.85, ensuring that the passive transceiver can emit most of the absorbed infrared waves for heating. In this embodiment, preferably, as follows: Figures 4 to 8 As shown, the direction of airflow inside the infrared radiation hot air generator is the first preset direction a, and the infrared irradiator 101 and the passive transceiver component, namely the finned sleeve 102, are both arranged in a direction perpendicular to the first preset direction a, which increases the contact area between the wind and the infrared wave and helps to improve the heating effect.
[0041] It should be noted that, not only that, the infrared irradiator 101 and the passive transceiver component, i.e., the finned sleeve 102, can also be set in a non-perpendicular manner to the first preset direction a, depending on the actual needs.
[0042] Furthermore, preferably, the first preset direction a is horizontal, and both the infrared irradiator 101 and the passive transceiver component, i.e., the finned sleeve 102, are arranged horizontally, and the extension directions of the infrared irradiator 101 and the passive transceiver component, i.e., the finned sleeve 102, are perpendicular to the first preset direction a. Of course, this is not the only possibility; the infrared irradiator 101 and the passive transceiver component, i.e., the finned sleeve 102, may also be non-horizontal, and the first preset direction a may also be non-horizontal, etc., depending on actual needs.
[0043] In this embodiment, preferably, as follows: Figures 3 to 6 As shown, the infrared radiation hot air generator also includes an inner shell 2 and a heat insulation plate 7; wherein, the interior of the inner shell 2 is a heat source cavity, and all heating components 1 are disposed in the heat source cavity, and the passive transmitting and receiving component of the heating component 1, namely the finned sleeve 102, is fixed on the inner shell 2; the outer periphery of the inner shell 2 is provided with heat insulation plates 7; along the first preset direction a, the two ends of the inner shell 2 are respectively formed with a first auxiliary air inlet and a first auxiliary air outlet. As can be seen from the structure described above, due to the heat insulation effect of the heat insulation plate 7, the inner shell 2 can maintain a certain temperature to radiate infrared waves for heating the wind, which greatly reduces energy consumption and improves heating efficiency.
[0044] Furthermore, preferably, the passive transceiver component of the heating assembly 1, i.e., the finned sleeve 102, is fixed to the inner shell 2, and the infrared irradiator 101 of the heating assembly 1 is fixed to the inner wall of the passive transceiver component, i.e., the finned sleeve 102, by the bracket 11.
[0045] Furthermore, preferably, mounting holes are formed on both opposite sides of the inner shell 2, and both ends of the passive transceiver are inserted into the mounting holes on both sides.
[0046] Furthermore, preferably, the inner shell 2 is made of a metal composite material, which has a certain strength to support the heating component 1, while also taking into account cost and improving infrared radiation. In this embodiment, preferably, the emissivity of the inner shell 2 is greater than 0.85, which is beneficial for the radiation of infrared waves. In this embodiment, preferably, the thermal conductivity of the heat insulation plate 7 is less than 0.03 W / m·K, which provides a good heat insulation effect and prevents infrared waves from escaping. In this embodiment, preferably, as follows: Figure 2 and Figure 3 As shown, the infrared radiation hot air generator also includes a blower 3 and a second air guide hood 4; wherein, along the first preset direction a, the blower 3 and the second air guide hood 4 are both disposed on one side of the first auxiliary air outlet of the inner shell 2, and the blower 3 is connected to the first auxiliary air outlet through the second air guide hood 4. As can be seen from the structure described above, in contrast to the existing technology where the blower is placed on one side of the air inlet of the outer casing, this application replaces the blower with an exhaust fan 3 and places the exhaust fan 3 on one side of the first auxiliary air outlet of the inner casing 2. In other words, the original direct air blowing form is changed to an exhaust form, which changes the positive pressure in the heat source cavity to a negative pressure. Therefore, it is more favorable to the sealing structure of the inner casing 2, which helps to improve the sealing performance and reduce the sealing requirements, thereby helping to reduce costs. Furthermore, a second air guide hood 4 is installed between the induced draft fan 3 and the inner shell 2, and the second air guide hood 4 is designed to be tapered, which plays a role in rapid exhaust, speeds up gas circulation, and improves work efficiency.
[0047] It should be noted that the second air guide shroud 4 may not be installed between the induced draft fan 3 and the inner shell 2, depending on the actual needs. In this embodiment, preferably, as follows: Figure 5 As shown, the infrared radiation hot air generator also includes a first air guide shroud 5 and a filter 6; wherein, along the first preset direction a, the first air guide shroud 5 is disposed on one side of the first auxiliary air inlet of the inner shell 2; the first air guide shroud 5 forms an air guide channel and a second auxiliary air inlet and a second auxiliary air outlet connected to the air guide channel, and along the first preset direction a, the second auxiliary air inlet and the second auxiliary air outlet are respectively disposed at opposite ends of the first air guide shroud 5, and the second auxiliary air outlet is connected to the first auxiliary air inlet of the inner shell 2; The filter screen 6 is installed inside the first air guide shroud 5 and blocks the air guide channel along the first preset direction a, so that the air entering from the second auxiliary air inlet is filtered by the filter screen 6 and then enters the heat source cavity. As can be seen from the structure described above, the first air guide hood 5 serves to guide the air, and a filter 6 is installed inside the first air guide hood 5 to filter out particulate matter mixed in the air, thereby preventing particulate matter from accumulating in the heat source cavity and reducing heating efficiency, while ensuring the cleanliness of the air. Furthermore, preferably, the first air guide shroud 5 is a square shell, and correspondingly, the filter screen 6 is square, with a regular shape, which facilitates processing, manufacturing, and assembly. Of course, the structure of the first air guide shroud 5 is not limited to the above, and its shape can also be designed according to actual needs, such as a cylindrical shell.
[0048] Furthermore, preferably, there are multiple filters 6, which are arranged sequentially at intervals along the first preset direction a. Of course, this is not limited to this; the number of filters 6 can also be one, etc., depending on the actual needs. In this embodiment, preferably, as follows: Figure 4As shown, the inner shell 2 includes a main cover 21 and an air inlet guide 22 and an air outlet guide 23 connected to the main cover 21; wherein, along the first preset direction a, the air inlet guide 22 and the air outlet guide 23 are respectively disposed at opposite ends of the main cover 21. Along the first preset direction a and towards the main cover 21, the air inlet guide 22 gradually expands; along the first preset direction a and away from the main cover 21, the air outlet guide 23 gradually contracts. As can be seen from the structure described above, the main cover 21 provides a heat source cavity for installing multiple heating components 1. An air inlet guide hood 22 and an air outlet guide hood 23 are provided at both ends of the main cover 21 along the first preset direction a. The air inlet guide hood 22 is designed to be gradually expanding, which can reduce the wind speed entering the heat source cavity, so that the wind can flow evenly and slowly through the heating components 1, which helps to improve the heating effect. The air outlet guide hood 23 is designed to be gradually contracting. After the wind is heated, it can accelerate the air outlet speed through the gradually contracting air outlet guide hood 23, thereby playing a role in rapid exhaust and reducing subsequent heat loss.
[0049] Furthermore, preferably, the main cover 21 is a square shell with a hollow interior and openings at both ends along the first preset direction a. It has a regular shape and a large internal heat source cavity space, which can accommodate more heating components 1. Of course, the shape of the main cover 21 is not limited to this.
[0050] It should be noted that the structure of the inner shell 2 is not limited to the above, and the specific structure should be selected according to actual needs. In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the infrared radiation hot air generator also includes an outer shell 8 and a top cover 9; wherein, the inner shell 2 is disposed inside the outer shell 8, and the outer shell 8 forms a main air inlet corresponding to and connected to the first auxiliary air inlet of the inner shell 2, and the outer shell 8 forms a main air outlet corresponding to and connected to the first auxiliary air outlet of the inner shell 2; a top opening is formed at the top of the outer shell 8, and the top cover 9 is detachably installed at the top opening of the outer shell 8. As can be seen from the structure described above, an outer shell 8 is installed on the outside of the inner shell 2 to further insulate it and also to protect the inner shell 2. In addition, a top opening is provided on the top of the outer shell 8, and a removable top cover 9 is provided to facilitate the maintenance of the internal structure.
[0051] Further, preferably, such as Figure 5 and Figure 6 As shown, a support beam 10 is provided between the heat insulation plate 7 on the bottom wall of the inner shell 2 and the bottom wall of the outer shell 8, which serves to support the inner shell 2. Of course, it is not limited to this; the support beam 10 may not be provided, depending on the actual needs.
[0052] In this embodiment, preferably, as follows: Figures 4 to 6 As shown, there are multiple heating components 1. The first preset direction a is horizontal, and the multiple heating components 1 are arranged along the first preset direction a and the vertical direction b, and the heating components 1 in each row and each column are staggered. As can be seen from the structure described above, multiple heating components 1 are arranged in a row and column, with each row and column of heating components 1 staggered. This makes the distribution of heating components 1 more uniform, which helps to improve the uniformity of heating and thus helps to achieve uniform temperature.
[0053] Of course, the arrangement of multiple heating components 1 is not limited to the above-described arrangement; other arrangements may also be used.
[0054] In this embodiment, preferably, at least one sidewall of the inner shell 2 is an arc-shaped structure protruding toward the heating assembly 1 (not shown in the figure), which reflects the scattered infrared waves and the infrared waves generated by itself back to the passive transceiver component, i.e., the finned sleeve 102. Example 2 The infrared radiation hot air generator in this embodiment is a variation based on Embodiment 1. The technical content disclosed in Embodiment 1 will not be described again, and the content disclosed in Embodiment 1 is also part of the content disclosed in this embodiment.
[0055] The differences between the infrared radiation hot air generator provided in this embodiment and the infrared radiation hot air generator provided in Embodiment 1 are as follows: the infrared irradiator is a plate-shaped structure, and the passive transceiver component is a plate-shaped structure with fins on its outer surface. That is, the passive transceiver includes a plate-shaped main body and fins (the number of fins can be one or more, depending on actual needs) on the outer surface of the plate-shaped main body. The plate-shaped main body of the passive transceiver component is arranged parallel to the infrared irradiator, and the two are arranged sequentially along a direction that forms an angle with the direction of airflow inside the infrared radiation hot air generator (not shown in the figure). As can be seen from the structure described above, the novel hot air generator provided in this application heats the air by directly acting on the air in the near field area through infrared irradiation, thereby achieving rapid and continuous heating of this part of the air. In other words, after infrared wave radiation, the entire heating cavity is filled with high-density far-infrared rays. When the air flows through, the far-infrared rays directly act on the gas molecules, exciting molecular resonance to generate heat energy, which greatly improves the heating rate and saves energy consumption.
[0056] Furthermore, preferably, the plate-shaped main body of the infrared irradiator and the passive transceiver component are plate-shaped structures arranged in parallel, and the height direction of their inner shells is arranged sequentially. Of course, this is not the only option.
[0057] Furthermore, preferably, the infrared irradiator can be a plate-shaped substrate coated with a graphene film, which is in direct contact with the air. This film serves as both an infrared exciter and a heat sink with a high heat transfer coefficient.
[0058] In this embodiment, preferably, the distance between the plate-shaped body of the passive transceiver and the infrared irradiator is less than 3 cm along the direction perpendicular to the plate thickness of the passive transceiver. Based on the structure described above, it can be seen that if the distance between the plate-shaped main body of the passive transceiver and the infrared irradiator is too large, it will cause a large attenuation of the infrared wave and affect the heating efficiency. Therefore, the distance between the passive transceiver and the infrared irradiator should be less than 3cm.
[0059] It should be noted that while a distance of less than 3cm between the passive transceiver and the infrared irradiator is a preferred range, the distance between them is not limited to less than 3cm and can also be greater than 3cm, depending on the actual needs. In this embodiment, preferably, the passive transceiver component of the heating assembly and the infrared irradiator are both fixed on the inner shell, and the inner shell serves to support the passive transceiver component and the infrared irradiator.
[0060] Furthermore, preferably, first auxiliary mounting holes are formed on both opposite sides of the inner shell, and both ends of the passive transceiver are inserted into the first auxiliary mounting holes on both sides; second auxiliary mounting holes are formed on both opposite sides of the inner shell, and both ends of the infrared irradiator are inserted into the second auxiliary mounting holes on both sides.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An infrared radiation hot air generator, characterized in that, include: At least one heating component, each of which includes an infrared irradiator and a passive transceiver component; wherein the passive transceiver component is disposed opposite to the infrared irradiator, and the infrared irradiator is used to emit infrared waves when energized; the passive transceiver component is used to receive and diffuse the infrared waves.
2. The infrared radiant heat gun of claim 1, wherein, The infrared irradiator is a tubular component, and the passive transceiver is a finned sleeve. The passive transceiver is sleeved on the outside of the infrared irradiator, and both extend in the same direction.
3. The infrared radiant heat gun of claim 2, wherein, Along the radial direction of the passive transceiver component, the distance between the passive transceiver component and the infrared irradiator is less than 3 cm.
4. The infrared radiant heat gun of claim 1, wherein, The infrared irradiator is a plate-shaped structure, and the passive transceiver is a plate-shaped structure with fins on its outer surface. The passive transceiver is arranged parallel to the plate-shaped main body of the infrared irradiator, and the two are arranged sequentially along a direction that forms an angle with the direction of airflow inside the infrared radiation hot air generator.
5. The infrared radiant heat generator of claim 4, wherein, Along the direction perpendicular to the thickness of the plate-shaped body of the passive transceiver, the distance between the plate-shaped body of the passive transceiver and the infrared irradiator is less than 3 cm.
6. The infrared radiant heat gun of claim 1, wherein, The infrared irradiator is a graphene infrared electric heating element; and / or The emissivity of the passive transceiver component is greater than 0.
85.
7. The infrared radiant heat gun of claim 1, wherein, The direction of airflow inside the infrared radiation hot air generator is a first preset direction, and both the infrared irradiator and the passive transceiver are arranged along a direction perpendicular to the first preset direction.
8. The infrared radiant heat generator of claim 7, wherein, The infrared radiation hot air generator further includes an inner shell and a heat insulation plate; wherein, the interior of the inner shell is a heat source cavity, and all the heating components are disposed in the heat source cavity, and the passive transceiver component of the heating component is fixed to the inner shell, and the infrared irradiator of the heating component is fixed to the passive transceiver component or the inner shell; the heat insulation plate is disposed on the outer periphery of the inner shell; along the first preset direction, a first auxiliary air inlet and a first auxiliary air outlet are respectively formed at both ends of the inner shell.
9. The infrared radiant heat generator of claim 8, wherein, The emissivity of the inner shell is greater than 0.85; and / or The thermal conductivity of the insulation board is less than 0.03 W / m·K; and / or The infrared radiation hot air generator further includes an exhaust fan and a second air guide shroud; wherein, along the first preset direction, both the exhaust fan and the second air guide shroud are disposed on one side of the first auxiliary air outlet of the inner shell, and the exhaust fan is connected to the first auxiliary air outlet through the second air guide shroud; and / or The infrared radiation hot air generator further includes a first air guide hood and a filter screen; wherein, along the first preset direction, the first air guide hood is disposed on one side of the first auxiliary air inlet of the inner shell; the first air guide hood forms an air guide channel and a second auxiliary air inlet and a second auxiliary air outlet connected to the air guide channel, and along the first preset direction, the second auxiliary air inlet and the second auxiliary air outlet are respectively disposed at opposite ends of the first air guide hood, and the second auxiliary air outlet is connected to the first auxiliary air inlet of the inner shell; The filter screen is installed inside the first air guide hood and blocks the air guide channel along the first preset direction, so that the air entering from the second auxiliary air inlet enters the heat source cavity after being filtered by the filter screen.
10. The infrared radiation hot air generator according to claim 8, characterized in that, The inner housing includes a main cover and an air inlet guide hood and an air outlet guide hood connected to the main cover; wherein, along the first preset direction, the air inlet guide hood and the air outlet guide hood are respectively disposed at opposite ends of the main cover; Along the first preset direction and towards the main shroud, the air inlet guide shroud gradually expands; along the first preset direction and away from the main shroud, the air outlet guide shroud gradually contracts; and / or The infrared radiation hot air generator further includes an outer casing and a top cover; wherein, the inner casing is disposed within the outer casing, and the outer casing forms a main air inlet corresponding to and connected to the first auxiliary air inlet of the inner casing, and the outer casing forms a main air outlet corresponding to and connected to the first auxiliary air outlet of the inner casing; a top opening is formed at the top of the outer casing, and the top cover is detachably installed at the top opening of the outer casing; and / or At least one sidewall of the inner housing is an arcuate structure protruding toward the heating assembly; and / or The inner shell is made of metal.
11. The infrared radiant heat generator of claim 7, wherein, The number of heating components is multiple, the first preset direction is horizontal, and the multiple heating components are arranged in a row and a column along the first preset direction and the vertical direction, with each row and each column of heating components staggered.