CN217652109U - Intelligent environment-friendly suspended ceiling device for middle-infrared heating - Google Patents

Abstract

The utility model provides an intelligent environment-friendly suspended ceiling device for mid-infrared heating, which comprises a plurality of energy-saving mid-infrared heating components, wherein each energy-saving mid-infrared heating component has a laminated structure and comprises a beautiful middle and outer top surface covering layer facing the ground, a polyethylene lens capable of penetrating and focusing middle and infrared light, a heat-insulating middle and infrared layer, a heating element, a heat-insulating layer and a bottom surface covering layer; the structure innovatively encapsulates the heating element by the thermal insulation material which is transparent to the middle infrared, thereby avoiding high-energy-consumption convection heating, and strictly requiring a new energy-saving standard that the ratio of infrared radiation heating to convection heating is not less than 2; the heating component utilizes a polyethylene lens which transmits middle infrared light to focus the middle infrared light scattered by the heating element to a space which has actual heating requirements and is 1m away from the ground, and then an infrared sensor is used for detecting the dynamic position of a human body to control an electric controller which enables each energy-saving middle infrared heating component to realize independent switch operation, so that a subversive energy-saving heating system is formed.

Description

Intelligent environment-friendly suspended ceiling device for middle-infrared heating

Technical Field

The utility model relates to a well infrared optical engineering, thermal insulation engineering, indoor heating and energy-conserving green engineering, nanometer engineering and intelligent manufacturing technology, the specific application is the intelligent environmental protection and energy saving suspended ceiling device of pleasing to the eye well infrared heating.

Background

Human civilization is constantly advancing, but the current mode of development is not sustainable, as the global energy consumption rate has far exceeded the global energy reserve replenishment rate and thus the crisis of depletion of derived energy. Since indoor energy consumption of a building accounts for nearly 40% of global energy consumption, innovations for subversive reduction of indoor energy consumption are important and urgent [1-5]. Indoor heating science and technology passes through solid heat conduction, thermal convection and infrared radiation transmission heat energy based on the object, and wherein the most common is through hot-air convection to realize indoor heating, but in this scheme, the transmission of heat energy all lets almost all objects in the space receive and consume the energy indiscriminately, and people are roughly the same again with the convection energy absorption rate of thing, so, although simple but not high-efficient in convection heating, if the temperature of all objects in the indoor space environment of will changing, not only the energy consumption is high but also the rate of rising and falling the temperature is all extremely slow. Besides wasting energy, the heating mode of heating air causes the relative humidity in the room to be seriously reduced, and causes a plurality of health problems in the aspects of skin, respirator officials and the like. Although the supply of water vapor can increase the humidity in the room, this method of humidification consumes a large amount of energy because the amount of heat required for water evaporation is high. In a word, the comprehensive improvement of the traditional indoor convection heating is very slow.

Compared with convection heating, infrared radiation can pass through the air from the heat source in the twinkling of an eye and be absorbed completely by people's skin and clothing commonly used, makes the people produce warm sense rapidly, and in addition, the metal surface generally reflects and does not absorb infrared radiation, consequently, as long as the article of putting chooses this type of material for use among the interior space environment, the heating energy consumption can be adjusted down by a wide margin. Since oxygen and nitrogen in the air hardly absorb infrared radiation for heating, the indoor infrared radiation heating can provide a feeling of sunning in cold air outdoors in winter, and is warm and comfortable, and the relative humidity of the air is not too low.

Of the many real indoor heating options, the old farmhouse coal and firewood fired heating water boilers are the most classic and long-standing, e.g. 20kW heating fuel boilers with furnace temperatures above 600 ℃ and open cast iron boiler shell surface temperatures below 200 ℃, with the total radiant intensity emitted by the door opening reaching 33kW/m ² The electromagnetic wave of (2), the radiation including infrared waves having a peak value of 3.3 μm and red light having a weak intensity and being still visible, e.g., an opening area of a furnace door of 0.1m ² The radiation power is about 3kW; meanwhile, the total radiation intensity emitted by the open furnace shell surface is about 2kW/m ² The peak value of the mid-infrared electromagnetic wave is higher than 6 mu m, such as 1m of the area of a furnace shell ² The radiation power of the furnace shell is about 2kW. The analysis shows that the 20kW heating furnace has a small infrared radiation area, the total radiation power is only 5kW, the heating furnace mainly depends on the convection heating of heated air, and the infrared radiation power only accounts for 25% of the total energy power. Namely, the ratio of infrared radiation heating to convection heating is only 0.33, which is a condition of unnecessary consumption of energy for heating regardless of human warm feeling with high energy consumption.

The common domestic central heating furnace in domestic and foreign cities increases the efficiency by increasing the temperature in the furnace, and the modern buildings have better thermal insulation, and a central heating furnace with the rated power of 10kW is enough for 100m ² The indoor space is heated, and the nearly sealed furnace core of the heater is usually positioned>The infrared radiation heating/convection heating system operates at a hot temperature of 1000 ℃, and mainly depends on directly blowing heated convection air to each corner of an indoor space, and the ratio of infrared radiation heating/convection heating is extremely low. If the furnace core indirectly conveys the heated water or oil to the heat dissipation plates at each corner of the indoor space, the temperature of the heat dissipation plates is about 40-80 ℃, the heat dissipation plates are heated by low power density and large area convection, and simultaneously, the infrared radiation heating is used, and the proportion of the infrared radiation heating/convection heating can be slightly increased to reduce the energy consumption. The infrared radiation heating/convection heating ratio is a key parameter for judging the heating energy saving degree,at present, the standard value of heating with heating panel and floor heating is about 1, and future green heating should promote this proportion to be no less than 2, reduces the quota of the convection heating of the extravagant energy.

When analyzing the ratio of ir heating/convection heating, the energy power density of convection heating is generally calculated by the following equation 1:

equation 1:

energy power density of convection heating C =2.17 × T ^1.13 W/m ²

T in the formula 1 is the number of temperature differences of the heating radiator surface temperature and the room temperature in degrees Sheward. And the infrared radiation transfer energy power density can be calculated using equations 2 and 3 derived from planck's law [6] as follows:

equation 2:

equation 3:

the power density of infrared heating R = the sum of the infrared radiation spectral intensity of the heater at the wavelength of 3 μm-50 μm-the energy power density of ambient infrared heating from equation 2 and equation 3, equation 4 can be derived:

equation 4:

infrared radiation heating/convection heating = R/C

This analysis method can be understood by the following case. First, an ideal spectral radiator (called a blackbody) emits electromagnetic waves without any self-absorption in the entire radiation spectrum with the planck's law spectral distribution mentioned above, and its emissivity is theoretically set to 100%. Blackbodies are produced and calibrated by professionals today and are widely used as reference standards for emissivity detection. For example, FIG. 1 shows the emission spectrum of a black body at a temperature of 310K (37 ℃ C., body temperature). The total spectral intensity of radiation having a wavelength shorter than 3 μm is about 0.02% of its entire spectrum, the total spectral intensity above a wavelength of 50 μm is only 2%, and 98% of the total radiation is in the wavelength range of 3 μm to 50 μm. Since the human body cannot be exposed to temperatures above 320K and below 290K for long periods of time, these two temperatures are also included in fig. 1Blackbody spectra in degrees to further confirm that the thermal radiation associated with human health is actually only in the infrared region in the wavelength range of 3 μm to 50 μm. The energy power density of the infrared radiation of a black body with a temperature of 310K is 524W/m ² Representing the sum of the spectral intensities in FIG. 1 over a wavelength range of 3 μm to 50 μm.

For example, by using the formulas 1 and 3, the effective convection heating energy power density of a floor heater with a surface temperature of 34 ℃ at room temperature of 16 ℃ in the market can be calculated to be 96W/m ² The effective infrared radiation heating energy power density is 90W/m ² The infrared radiation heating/convection heating ratio was 0.94. The analysis shows that more than half of floor heaters on the market can be supplied with energy for non-selective convection heating, and objects which are irrelevant to indoor heating are heated, so that the heating is slow, the humidity is low and the energy consumption is high. Nevertheless, the above heating is an energy-saving and comfortable heating method; therefore, heating needs to be subversive and innovative, the infrared radiation heating/convection heating ratio needs to be greatly improved, and consumers and manufacturers in the heating and production markets are responsible for understanding the infrared radiation spectrum science and reducing heating energy consumption in a cooperative manner based on the basis.

In fact, the importance of infrared radiation in the wavelength range of 3 μm to 50 μm for human health in addition to heating has been well documented and evaluated [7-10]. In summary, infrared radiation in the wavelength range of 3-50 μm in a human body can enhance blood circulation and immunity [11-14], enhance wound healing ability [15], relieve pain [16-17], relieve depression stress [18], improve sleep quality [19], and delay memory deterioration [20]. Synergistically integrating these knowledge of infrared radiation with the emerging field of personal thermal management [21-22], new areas of scientific research emerged and new products made. However, the wavelength span in current practice has a certain randomness that hinders the development of this emerging industry and the sustainable acceptance of the market. For example, the exemplary works in references 11-20 alone show the following vastly different spectral bands in the infrared from narrow to wide wavelength spans: "5 μm-12 μm" [11], "3 μm-14 μm" [14], "3 μm-15 μm" [18], "4 μm-16 μm" [16,17,19], "5 μm-20 μm" [20], "4 μm-20 μm" [13], and "5.6 μm-25 μm" [15]. Clearly, the range of spectral bands in this industry must be regulated and standardized.

Although infrared spectral radiation in the wavelength range spanning from 3 μm to 50 μm is of such great significance and has contributed to the scarce classical work [7-22], surprisingly even the designation of the wavelength span is written in a rather arbitrary fashion. The wavelength range of 3 μm to 50 μm is well defined as the mid-infrared according to the international spectral standard ISO20473[23], wherein the wavelength range of 0.78 μm to 3 μm is the near-infrared and the wavelength range of 50 μm to 1000 μm is the far-infrared. However, most of many commercial products [24] and references [10-18] use the word "far infrared" to describe radiation in the 3 μm to 50 μm wavelength range at will. Some of these documents wrongly cite the international commission on the definition of infrared radiation to justify their use of the "far infrared" at their discretion to describe radiation having a wavelength in the range of 3 μm to 50 μm. For clarity, the exact definition publicly published by the international commission on illumination website (www.cie.co.at) is as follows:

infrared radiation: light radiation having a longer wavelength than visible light, the wavelength being 780nm to 1mm.

Note 1: for infrared radiation, a range of 780nm to 1mm is generally divided: IR-A:780nm to 1400nm, or 0.78 μm to 1.4 μm; IR-B1.4 μm to 3.0 μm; IR-C:3 μm to 1mm.

Note 2: the exact boundary between "visible" and "infrared" cannot be defined because the visual perception of wavelengths greater than 780nm is due to the very bright light source with longer wavelengths.

Note 3: in some applications, the infrared spectrum is also classified as "near", "intermediate" and "far" infrared. However, the boundaries necessarily vary from application to application (e.g., meteorology, photochemistry, optical design, thermophysics, etc.).

This clarification illustrates a conclusion that the international commission on illumination only acknowledges that certain spectral applications partition the infrared into "near", "intermediate" and "far" infrared, but no suggestion is made as to how to set these partitions. In contrast, ISO20473[23] explicitly combines the 0.78 μm to 1.4 μm IR-A band and the 1.4 μm to 3.0 μm IR-B band into a "near infrared" band of 0.78 μm to 3.0 μm, and explicitly defines the wide range IR-C band as 3.0 μm to 1000.0 μm, where the "mid infrared" band is 3.0 μm to 50.0 μm and the "far infrared" band is 50.0 μm to 1000.0 μm. In short, the present invention proposes to strictly carry out the labeling of spectral bands from 3 μm to 50 μm as mid-infrared, in order to comply with the requirements of ISO 20473.

By adopting the ISO20473 standard to correct errors in the industry and correctly refer to the spectral band in the wavelength range of 3-50 μm as mid-infrared, the present invention also requires all persons who research, manufacture and sell mid-infrared products to quantitatively interpret the mid-infrared performance of these products. In particular, the present invention proposes to use a universal reference black body to calibrate the spectral radiation intensity and emissivity of a thermal radiation emitter as a function of the radiation wavelength of the emitter at a specific temperature (in particular in the case of instantaneous acceptance by the human body), assuming a temperature range of 0-90 ℃. As mentioned before, at such temperatures, 98% of the radiation intensity of an object is emitted in the mid-infrared spectral band in the wavelength range 3 μm to 50 μm, so all such thermal radiation emitters can be classified as mid-infrared emitters according to ISO 20473. The wavelength of the mid-ir emitter is calibrated by emissivity as a function of the wavelength of the emitter at a particular temperature, based on a black body with 100% emissivity. Emissivity refers, without express specification, to the average emissivity in a particular spectral band calibrated with a black body. In practice, the intensity of the radiation as a function of the wavelength of the radiation can be measured using a high-end infrared spectrometer, which can cover the mid-infrared band from 3 μm to 50 μm. In addition, it is also easy to measure the radiation intensity as a function of the radiation wavelength with a common infrared spectrometer which typically covers a spectral range of 0.78 μm to 25 μm. Thus, relative emissivities in the partial spectral bands of 3 to 25 μm in the mid-infrared range of 3 μm to 50 μm can easily be obtained by this method. Although this measurement method covers only the 3-25 μm spectral band and does not cover the entire mid-infrared range of 3 μm-50 μm, the measured emissivity data is a good representation of the emissivity characteristics of the measured object because the entire 3 μm-50 μm mid-infrared band emits 85% of its total thermal radiation in this spectral band of 3 μm-25 μm at black body temperatures ranging from 0 ℃ to 90 ℃. Accordingly, the present invention employs and advocates such a measurement method to determine the spectral and emissivity characteristics of all mid-ir emitters. This standardization approach makes up for the lack of expertise in designing and applying the spectral specifications of the thermal radiation products associated with the human body.

The heating industry is promoted to need to improve the infrared radiation heating/convection heating ratio of products so as to achieve the purpose of reducing energy consumption, and besides the clear spectrum standard, a method and a tool for detecting and optimizing the mid-infrared emissivity are also needed to be standardized. There are two main tools for detecting mid-infrared radiance: (a) The non-wavelength dispersion emissivity is measured by a simple radiation emissivity measuring instrument; (b) Wavelength dispersion emissivity measured by an infrared spectrometer equipped with a black body. A recently published document [25] describes, calibrates and validates an industrial radiation emissivity meter. The radiation emissivity measuring instrument is provided with an internal blackbody emitter, the temperature of the internal blackbody emitter is 100 ℃, the internal blackbody emitter can irradiate a test sample, and the emissivity of the test sample is detected and measured through the temperature change of the blackbody-like radiation absorber. The radiation emissivity measuring instrument covers 0.5-98% of emissivity range, and the spectral range is 2.5-40 μm. Since Planck's law states that a black body emits only 0.14% of its total radiation in the range of 2.5 μm to 3 μm at 100 ℃, the actual starting measurement wavelength of the emissivity meter is about 3 μm to 40 μm. While this emissivity meter design is effective for rapidly measuring mid-ir emissivity, the design provides only average emissivity across the mid-ir spectral range, with no information about the emissivity of a particular wavelength. This drawback is also easily overcome by using an infrared spectrometer equipped with a black body. In summary, all heating products can be tested and validated using commercially available radiometers or infrared spectrometers.

Designing and verifying mid-infrared emissions of a heating product necessitates thorough spectral analysis of mid-infrared absorption along the path from the heat source in the heating product to the user. At present, the heating industry is lack of such analysis and product performance detection and authentication, and the false publicity condition is serious. For example, the current heating industry is actively marketing graphene floor heaters, and products are falsely claimed to emit graphene infrared light that is easily absorbed by the human body. In fact, even though the heating elements in the graphene floor heater do contain graphene, all the heating elements of the floor heater are covered by wood or ceramic floor, and all the wood or ceramic floor is not transparent to mid-infrared radiation, so that the mid-infrared radiation generated by the heating elements cannot be transmitted through the floor material. In practice, the floor is warmed by absorbing infrared radiation from the heating element of the heater, and also by obtaining thermal energy from the heating element by the general solid heat conduction principle, and the heated floor is then heated by air convection and infrared radiation heat dissipation. Obviously, the floor will still emit mid-infrared radiation, but the spectral characteristics depend on the nature of the floor surface material, rather than the heating element or the bulk of the floor. Similarly, all heating elements of the heaters are covered with a packaging material to ensure the safety and durability of the heaters, and the packaging material commonly used in the market at present, including plastic, cloth, metal, ceramic, etc., is not transparent to mid-infrared radiation except polyethylene, and the mid-infrared radiation of the heaters is determined by the optical properties of the top surface material of the heaters, but not by the infrared spectrum of the heating elements inside the heaters. For example, all wearable heaters and felt heaters packaged with fabrics such as color cotton, cotton-like plastic, silica gel, leather-like polyvinyl chloride, etc. have infrared radiation dominated by the mid-infrared spectrum characteristics of the fabrics, regardless of whether the heating element of the heater contains graphene. Since cotton is known to have mid IR emissivity in the range of 68% to 88% [32-33], cotton that has not been surface engineered to increase its mid IR emissivity is not an ideal choice for producing energy efficient heating products. Similarly, common wearing formula heater and the felt formula heater of surface fabric encapsulation such as imitative cotton plastics, silica gel, imitation leather polyvinyl chloride all are not beyond the limit the utility model discloses the promotion heater infrared radiation who advocates reaches energy-conserving design and functional requirement. In another example, although Yue et al [34] invented a film with a top-bottom counter-functional structure that could also be used as an electric heater, the heating surface in the top-bottom counter-functional structure contained low emissivity nano-copper, while the non-heating surface had high emissivity. Obviously, the top and bottom opposite functional structure design is not beneficial to realizing the high performance of the mid-infrared heater.

The innovation of the heating industry must meet the aesthetic requirements of the user for the heating product, in addition to optimizing and standardizing the mid-ir emission of the heating product, in which even scientists/engineers with the normal skills of the industry may erroneously equate visible light emissivity with mid-ir emissivity, since the human eye sees only visible colors and not mid-ir light. Thus, a heating product decorated with black color may not emit mid-infrared light because it does not emit visible light. Also, one may perceive heating products with different visible colors as having a large difference in mid-infrared emission. The present invention corrects this erroneous recognition again by adhering to rigorous attitudes toward science and evidence-based norms. For example, in one embodiment of the present invention, a black polyester abrasion resistant cloth was tested for wavelength dispersion emissivity, as shown by the curve represented by the black polyester fabric of FIG. 2, which has a spectral curve very close to that of a reference black body, with a total emissivity of 96% over the measured spectral range of 3 μm to 33 μm. A layman who does not understand the knowledge about mid-infrared may think that changing black dye to white dye would greatly reduce the emissivity, however the present invention shows that near-perfect spectral profile and high emissivity can be retained by selecting the appropriate white dye, as shown by the curve represented by the white polyester fabric of fig. 2. In contrast, prior art [26] studies of product performance and spectral properties of black and white polyethylene flakes show that white flakes perform worse than black flakes because of the 83% reduction in band emissivity from 3 μm to 7 μm. As can be seen from a comparison of fig. 2, the mid-infrared performance of the product can be more accurately tracked by measuring the wavelength dispersion emissivity of the product. In summary, the present invention is directed to a heater that is practically aesthetically pleasing with mid-infrared transparent pigments, but the current heating industry is not concerned with the scientific principles of this infrared and visible spectrum, or even with the application of the heating industry that incorporates two distinct spectra.

Now that the heating industry is attempting to improve the infrared radiation performance of heating products, it is necessary for the heating industry to know what products have been dedicated to infrared radiation. The relevant literature reports on physical therapy [7-20, 24], personal thermal management [21-24; US7642489; US10457424; US2018/0320067 and military applications US7313909 describe devices for emitting and operating infrared radiation required for these applications, but all suffer from the problem that the band range and emissivity do not comply with the mid-infrared heating specification provided by the present invention, and the risk of burning the skin of a human body is increased when the emitting surface temperature of these infrared emitters is higher than 46 ℃ during operation; some of the prior art use conventional infrared emitters [ US8975604; US9249492], has the disadvantage of large volume and weight, and does not meet the market demand of mid-infrared energy-saving heating. A recent granted patent of invention [ ZL202010847951.8] provides a thermally insulated packaged mid-infrared emission panel for heating and physiotherapy, which has a laminated structure including a top surface covering layer, a first gas thermal insulation layer, a first mid-infrared transmitting plastic thermal insulation layer, a second gas thermal insulation layer, a second mid-infrared transmitting plastic thermal insulation layer, a third gas thermal insulation layer, a first electrical insulation layer, an electrical transfer mid-infrared emission film layer, a second electrical insulation layer, and a bottom surface covering layer, and a method for manufacturing the same. Although the invention patent overcomes the defects in the industry, the infrared radiation density of the heating point outside the intermediate infrared emission screen is reduced along with the square value of the distance, for example, a person with the body width of 50cm can receive 20% of the total infrared radiation scattered by the infrared emission screen when standing 50cm away from the intermediate infrared emission screen, and can only receive 1.25% when the distance is increased to 2 m (close to the height of a floor), so that the distance between the installation position of the product and an indoor heating user is limited, and the ceiling is not suitable for being installed on a ceiling with a long distance. Therefore, under the guidance of ZL202010847951.8, the application of the intermediate infrared emission screen cannot be limited in industrial development due to the fact that the intermediate infrared emission screen is arranged on a suspended ceiling, particularly large-space indoor facilities with high floors, and the energy-saving significance and the industrial influence of the innovative heating product cannot be realized. The traditional convection heating adopted in the large-space indoor facilities with large floor heights is just the first accident of higher indoor heating energy consumption.

The utility model discloses all the drawbacks of the aforesaid in the heating trade have been solved comprehensively, with reduce heating energy consumption by a wide margin as the target, let the customer enjoy not only energy-conserving but also healthy comfortable warm sense as the purpose, the technique and the scientific basis of reform heating trade development have been provided, the key point lies in providing but the reform method and the equipment of the quantization effect that changes from present "infrared radiation heating/convection heating ratio" generally less than 1 into not less than 2, and relevant scientific basis, the energy waste current situation of convection heating indiscriminate article heating irrelevant with the warm sense of people has been clarified, the false propaganda current situation and the scientific misnomer of present infrared radiation heating trade ubiquitous have been clarified again, especially the behavior of violating the infrared spectrum standard to the well infrared label of heating as the far infrared, and the well infrared emission and the absorption principle of violating infrared spectrum science have surly falsely reported product infrared radiation spectral characteristic. To all defects of the aforesaid in the heating trade, the utility model more specifically provides a well infrared heating subassembly and intelligent environmental protection application method, as the implementation the follow present "infrared radiation heating/convection heating ratio" generally be less than 1 and change into the reform heating trade method and the equipment that is not less than 2 can quantify the effect into. More importantly, the utility model discloses creatively break through ZL 202010847951.8's thinking mode and application limitation, think suspended ceiling is the most suitable position that sets up energy-conserving infrared radiation heating in the interior decoration. Firstly, as the hot air flows upwards, the infrared radiation heating/convection heating ratio of the infrared radiation heating facility arranged on the suspended ceiling is higher inevitably, and the aim of saving more energy is achieved; secondly, the effective area of the suspended ceiling capable of being used for infrared radiation heating is larger than that of a newly-developed floor heater, and the indoor heating laying with higher efficiency is easier to plan; in addition, suspended ceilings are the most suitable place for laying indoor facilities; finally, the utility model discloses creatively provide and be in the utility model discloses arrange the well infrared radiation heating subassembly of suspended ceiling in and add and pass through and focus the polyethylene lens of mid-infrared, overcome with the optics principle heating subassembly infrared scattering and infrared light density along with the disadvantage that the distance square value weakens, and will heating subassembly infrared light focus to apart from 1 meter on ground, put the infrared image of well infrared radiation heating subassembly in user's warm sense central point promptly, and the position of reuse infrared inductor accurate determination user goes to move nearest well infrared radiation heating subassembly, and the heating subassembly uses the space of 50 centimetres around the user as the long wide specification of heating subassembly unit, and the automatic concentrated space of 50 centimetres around the user of putting in of the energy of input heating system constitutes the indoor heating economizer system who has always the tiltability.

Reference documents:

all references can be found in chinese patent No. ZL202010847951.8, which is incorporated herein in its entirety.

Disclosure of Invention

Energy consumption of indoor heating is an important component of global total energy consumption, so that the defect of high energy consumption of the existing indoor heating is urgently overcome. The present invention has been reviewed in the background section with regard to the high energy consumption characteristics and disadvantages of the conventional indoor heating, which mainly relies on convection heating, and in short, in such an indoor heating mode, only part of the energy is used to provide warm comfort to the human body, and the rest of the energy is used to heat many objects completely unrelated to comfort and is wasted. Worse yet, this indiscriminate heating also causes a dramatic increase in the temperature difference between the indoor and outdoor air, which results in a severe drop in indoor relative humidity to a level that is detrimental to health, including dry skin cracking and respiratory organ damage. In addition, the traditional indoor heating depends on a heat source with high power density and high working temperature, and a plurality of burn and fire cases exist. The utility model discloses the design is removed with the novel heater who produces, transmission, absorption, reflection, focus mid infrared radiation as core heating theory of operation to the concept of several non-standards of the all-round convergence of cooperativity more than the defect and the not enough of present indoor heating, especially the not energy-conserving convection heating of suppression. Particularly, the subversive innovation of the utility model comprises:

(1) For promoting and promoting the heating industry transformation with energy-conservation and health as the purpose, the utility model provides a method and the science of the quantization "infrared radiation heating/convection heating proportion" of novelty is according to, heating subassembly is automatically controlled including the intelligence that can calculate demonstration "infrared radiation heating/convection heating proportion", shows that "infrared radiation heating/convection heating proportion" can lead to the establishment of the new energy-conserving standard of heating industry, and can wash present heating industry high energy consumption and heating performance false propaganda phenomenon.

(2) The utility model discloses the design and the preparation of well infrared emission heating subassembly have been provided innovatively, and the subassembly should accord with the mid-infrared wave band that the emission wavelength was 3 mu m-50 mu m promptly, and emissivity and transmissivity will use the intermediate infrared detector quantization of having proofreaded through the black body. The importance of this standard is that the human body has extremely efficient mid-infrared absorption with both normal clothing and bed clothing. The existing scientific evidence shows that the human body has physical therapy benefit by absorbing mid-infrared, so that the mid-infrared radiation parameters of the mid-infrared emission heating component and the mid-infrared optical parameters of users of the mid-infrared emission heating component and surrounding objects are quantized, and paving and operating arrangement of the mid-infrared emission heating component are preset accurately according to the warm comfort and physical therapy requirements of the users, so that the effects of energy conservation, comfort and health are achieved.

(3) In general, the heater is not thermally insulated from the receiver heater. However, the utility model discloses a well infrared emission heating subassembly is the heater of a thermal insulation encapsulation. Mid infrared emission heating subassembly blocks up the convection heating of cutting off high energy consumption through high-efficient thermal insulation encapsulation, and the packaging technology who passes through mid infrared radiation is with practical application the utility model discloses a core innovation point.

(4) The utility model discloses a thermal insulation encapsulation of well infrared emission heating subassembly is the technique of innovation too. The heat insulation packaging of the mid-infrared emission heating component adopts two different heat insulation packaging methods, and an electric conversion mid-infrared emission film wrapped by an electric insulation film is packaged into the mid-infrared emission heating component. Firstly, the utility model provides a polyethylene which can transmit middle infrared rays is adopted as a structural material to ensure high transmission middle infrared ray degree; furthermore, the air bubble microstructure with blocked convection in the optimized porous polyethylene and the air bubble microstructure with compound multi-scale and shape in the utility model can achieve the purpose of high-efficiency thermal insulation; most importantly, the utility model discloses an optimize the polyethylene micro-structure of polyethylene micro-structure and compound multiscale and appearance and have high mechanical properties, can ensure to make with minimum polyethylene and have the infrared thermal insulation that pierces through of the durable electricity commentaries on classics mid infrared emission membrane of puncture-proof and prevent the puncture encapsulation to can make the direction output of infrared radiation to mid infrared emission heating subassembly user in the electricity commentaries on classics in the mid infrared emission heating subassembly safely. If the material that middle infrared emission heating subassembly adopted glass or other absorption middle infrared radiation does thermal insulation structure, then can heat up and with air convection heat dissipation because of absorbing the middle infrared of its transmission towards user's middle infrared emission heating subassembly top surface, this has just violated the utility model discloses the purpose of the energy-conserving mode convection heating of non-that will restrain. Additionally, another innovation in the utility model is that, the thermal insulation structure and the function of the bottom surface overburden that the user was kept away from to well infrared emission heating subassembly are different from the thermal insulation structure and the function towards user's top surface overburden, the thermal insulation structure of bottom surface overburden adopts simple thermal insulation plastic layers such as foamed plastic, prevent the energy loss because of solid heat transfer production, join in marriage in addition and add the metal (aluminium etc.) coating that well infrared emissivity is less than or equal to 10%, in order to prevent the energy loss because of infrared radiation produces, this metal coating still has the reflection by heating element to the well infrared radiation of wall direction transmission and return heating element's characteristic afterwards. One of the core innovations of the utility model is that the top surface and the bottom surface covering layer of the middle infrared emission heating assembly are prepared by adopting the two structures and the thermal insulation packaging technology with different functions in a synergic manner.

(5) The utility model discloses an among the innovative design, infrared emission heating subassembly has the aesthetic feeling enjoyment in addition to can make the user have warm sense and physiotherapy benefit simultaneously. Laymen, or even a person with basic skills in the room heater industry, may perceive that black objects do not glow, whereas colored objects (e.g., colored mid-ir emitting heating elements) may compromise mid-ir emission functionality by being decorated with different colors. In contrast, the present invention discloses a distinct phenomenon, namely, although the present invention discloses a mid-ir emission heating assembly using lead-free/chrome colors such as black, white, red, yellow, blue, green, etc. and combinations thereof to present its decorative aesthetic effect, as long as the method is followed, the lead-free/chrome pigment can still have a mid-ir transmittance close to 100%, and the color mid-ir emission heating assembly can still exert its high-efficiency heating and physiotherapy effect.

(6) The utility model discloses creatively provide one kind will well infrared emission heating subassembly lays in suspended ceiling's energy-conserving heating system. Firstly, because hot air flows upwards, the infrared radiation heating/convection heating ratio of the infrared radiation heating facility arranged on the suspended ceiling is higher inevitably, and the purpose of saving more energy is achieved. The utility model discloses creatively provided and realized this method of seeing impossible assumption at a glance, though indoor heating system's heating element physical can not follow the dynamic position of the person that is heated and put, nevertheless as long as heating system's heating element is with the light radiation heating, the image of light source can not only be put in at the space assigned position with optical technology, but also can be in reason the position of the unchangeable light source position of suitable ground and control the light path and adjust the light source image. The specific innovation is that the spatial horizontal section (50 cm multiplied by 50 cm) of the heated person is set as an infrared heating element (light source element), the infrared heating element is laid on a suspended ceiling, and a polyethylene lens which transmits and focuses mid-infrared rays is matched to accurately place the image of the light source element at the spatial horizontal section position of the heated person about 1m away from the ground, so that in the optical scene, the heated person bathes in infrared radiation formed by the image of the light source element and generates the heating feeling by absorbing light energy. Production and installation during well infrared emission heating suspended ceiling device, as long as choose the polyethylene lens that the focus is suitable for use and make its matching floor height to at the suspended ceiling assembly infrared heating element that receives the warm person resident place, control the automatically controlled ware of infrared heating element independent switch operation in every energy-conservation with infrared inductor detection human dynamic position again, just constitute the energy-conserving heating system of subversion nature.

In addition to the above innovative core, the present invention further provides an alternative embodiment of the inventive concept as described in the following comparative analysis. In some embodiments of the utility model, rely on the heat source that power density and operating temperature are all high to the danger of human body to traditional indoor heating, well infrared emission heating subassembly's well infrared emission component be a low power density and low operating temperature's infrared emission membrane in the electricity commentaries on classics, especially well infrared emission heating subassembly operating voltage does not exceed 36V, ensures that infrared emission heating subassembly also does not have the electric leakage danger in the human contact, well infrared emission heating subassembly working surface temperature is far less than 46 ℃, guarantees can not cause the burn to skin. Furthermore, the present invention discloses a method for producing a low cost (<US $ 700-1000/ton) low resistivity (<1 omega-cm) coal-based nanocarbon can meet innovation and safety requirements under the condition of practical cost benefit. In addition, if it is about 500W/m ² The medium infrared emission heating component with low power density and total power of about 1000W is combined with furniture and ornaments which do not absorb or reflect medium infrared rays and laid indoors, so that the heating requirement of a standard indoor space of 20 square meters can be met, and the excellent effect of saving energy by 50 percent can be provided. In this design consideration, the utility model discloses judge according to the thermal conductivity of air (0.027W/m.K), the porous polyethylene that well infrared emission heating subassembly is equal to 3mm air with the thermal insulation effect is adiabatic, and well infrared emission heating subassembly is with 500W/m ² The theoretical insulation temperature difference from the electrically-switched mid-ir emitting film to the user-facing mid-ir emitting heating module top cover layer is 56 c when operating at power density of (a). Under this condition, if the mid-ir emission film temperature in the electrotransfer is 90 ℃, the top surface temperature of the mid-ir emission heating component facing the user of the mid-ir emission heating component is 34 ℃. Experiments prove that when the room temperature is 16 ℃, even if the mid-infrared transmissivity of the heat insulation structure of the mid-infrared emission heating assembly is near zero, the absorption mid-infrared temperature rise and the heat insulation effect are reduced, and the mid-infrared emission heating facing usersThe top surface temperature of the module will reach 38 c and still be well below the safe upper limit of 46 c. In other words, the utility model discloses a even infrared emission membrane is when 90 ℃ in the electricity commentaries on classics of well infrared emission heating subassembly, the surface temperature of well infrared emission heating subassembly is absolute safety to the well infrared emission heating subassembly user. According to Planck's law [ 1]]And when the mid-infrared emission film with the mid-infrared emissivity of 99 percent works at 90 ℃, the mid-infrared power density is about 950W/m ² Experiments prove that even if the middle infrared emissivity and the middle infrared transmittance of the window-shaped heat insulation structure of the middle infrared emission heating component are not ideal, the middle infrared emission heating component can only emit 950W/m ² 70% of the total amount of heat generated by the heating module, the user still perceives heating at 60 c by absorbing the transmitted mid-infrared, and the temperature of the top surface of the heating module is incredibly kept at about 34 c.

As described in the background section of the present application, the convective transfer energy power density of a common heating model can be expressed in equation 1 (i.e., 2.17T) ^1.13 W/m ² ) The calculation shows that T is the temperature difference between the heating surface temperature and the room temperature, and the IR transmission energy power density can be calculated by Planck's law (formulas 2 and 3 in the background section), for example, a commercial floor heater with a surface temperature of 34 ℃ and an effective convection transmission energy power density of 96W/m at 16 DEG C ² The effective infrared radiation transfer energy power density is 90W/m ² The infrared radiation heating/convection heating ratio (abbreviated as R/C) is only 0.94. In the typical scheme of emerging floor heating at present, a 10-square meter floor heater can convert electric power into heat for heating at 2kW under the condition, and the heating requirement of a 20-square meter indoor space is generally sufficient. The analysis of the case shows that more than half of the energy dissipated by heating is used for non-selective convection heating for the floor heaters on the market, and objects which are not related to the heating sense in the room are heated, so that the temperature rise is slow, the humidity is low and the energy consumption is high. Compared with the ground heating competition goods in the market, the utility model discloses a middle infrared emission heating component which has 96W/m with the top surface temperature of 34 ℃ under the same operating condition with the case ² Effective convective transfer energy power density and 90W/m ² Besides the density of the effective infrared radiation transmission energy power, a built-in infrared source penetrates through the top surface covering layer of the heating assembly and is insulated from heatIntermediate infrared emission through the intermediate infrared layer. If the infrared transmittance is 70%, the additional effective infrared radiation transmission energy power density can still reach 265W/m ² The total effective infrared radiation transfer energy power density is increased to 375W/m ² The convection energy-saving device has the advantages that the density of the power of the effective convection transmission energy is four times that of the power of the effective convection transmission energy, the R/C is improved subversively, the energy-saving effect is achieved, and the defect that the humidity is too low due to convection heating air is avoided.

As in the middle infrared physiotherapy industry, most of the known physiotherapy methods only use 10-20mW/cm ² (i.e., 100-200W/m) ² ) Therefore, the mid-infrared radiation heating component of the present invention provides not only warm and comfortable but also high enough mid-infrared radiation intensity (a)>375W/m ² ) Providing scientifically proven mid-infrared physiotherapy benefits to the user.

The utility model discloses a well infrared emission heating subassembly can adopt the low-cost with coal or coke preparation of [ PCT/CN2018/104910] and have graphite alkene, carbon nanotube, carbon nanofiber and other electrically conductive nanocarbon, implement the utility model discloses a method of infrared emission heating subassembly in low-cost preparation.

Compared to the published intellectual property rights, although there have been reports in the literature using infrared transparent encapsulation US6038065; US9951446; US9989679, US10502879], but they do not specifically cover the mid-infrared band from 3 μm to 50 μm and the infrared transparent encapsulation is not related to the functions of thermal insulation and decoration, etc.

Furthermore, materials that do not transmit visible light but transmit or reflect infrared have been reported in the literature [ US9951446; US9989679; US10502879], the concepts and methods reported are unrelated to, or opposite to, those in the present invention. Briefly, US9951446 and references 21-22 disclose the incorporation of dyes into garments to facilitate the dissipation of heat from the human body and the reflection of ambient infrared light, preventing the reflection of infrared light back into the human body; therefore, they are a method of cooling the human body, which is contrary to the human body's warm comfort disclosed in the present invention. US9989679 discloses a method of adding pigments to an infrared transparent material for making an infrared reflective film, for the purpose of making an identification device. Thus, US9989679 is an infrared reflection method, the concept of which is contrary to the present invention. US10502879 discloses a system having a coloured infrared transparent layer, but the invention relates to near infrared rather than mid infrared, wherein the coloured infrared transparent layer disclosed therein is used as an encapsulating material for a near infrared camera or other near infrared device, independent of heating and mid infrared physiotherapy. Furthermore, US10502879 discloses a method of colouring in an infrared transmitting substrate using plasma particles, but the plasma particles of this invention are very costly and cannot be used practically as decorative heaters. Reference 30 discloses lead-and chromium-based pigments for beautifying low ir coatings, but the related use of lead and chromium has been banned and the disclosed method is counter-directed to the technical route conceived by the present invention. Reference 31 describes the preparation of colored, near infrared reflective, superhydrophobic polymer films to maintain cooling of buildings from solar heating. The concepts and methods are the reverse of the concepts and methods of the present invention.

Compared with the latest granted patent of invention [ ZL202010847951.8], the patent provides a thermal insulation packaging intermediate infrared emission screen for heating and physiotherapy and a preparation method thereof, wherein the intermediate infrared emission screen sequentially comprises a top surface covering layer, a first gas thermal insulation layer, a first intermediate infrared transmitting plastic thermal insulation layer, a second gas thermal insulation layer, a second intermediate infrared transmitting plastic thermal insulation layer, a third gas thermal insulation layer, a first electric insulation layer, an electric-to-intermediate infrared emission film layer, a second electric insulation layer and a bottom surface covering layer which are arranged in a laminated manner; the patent uses a gas-sandwiched thermal insulation layer between two layers of plastic films to manufacture a thermal insulation intermediate infrared emission screen, but the intermediate infrared emission screen is not suitable for being arranged on a suspended ceiling far away from a user, because the infrared radiation density of a heating point outside the intermediate infrared emission screen is reduced along with the increase of the square value of the distance, if a person with the body width of 50cm stands 50cm away from the intermediate infrared emission screen, 20% of the total infrared radiation scattered by the infrared emission screen can be received, and only 1.25% can be received when the distance is increased to 2 m (close to the height of a floor). According to the above innovative route, the utility model discloses an intelligent environment-friendly suspended ceiling device for mid-infrared heating, which is characterized in that, the suspended ceiling device for mid-infrared heating comprises a plurality of energy-saving mid-infrared heating components arranged on the suspended ceiling, each energy-saving mid-infrared heating component has a laminated structure, and comprises a transparent middle-outer top surface covering layer facing the ground, a polyethylene lens for penetrating and focusing middle infrared light, a heat-insulating transparent middle-infrared layer, a heating element, a heat-insulating layer and a bottom surface covering layer; wherein the top cover layer faces the warmer and the bottom cover layer is distal from the warmer relative to the top cover layer; the spectrum wavelength range of the middle infrared is a wave band of 3-50 μm which is suitable for human body heating and physical therapy.

Optionally, the mid-infrared emission heating subassembly can be beaten into suspended ceiling and decorate, becomes not only pleasing to the eye but also has the product of heating physiotherapy function.

Optionally, the aesthetic mid-infrared-transparent top cover layer comprises a mesh structure with pores and infrared permeability, the mesh structure can optimize the aesthetic and mechanical properties of the top cover layer, and the mesh comprises a plastic mesh, a metal mesh, or a plastic mesh covered by a metal coating.

Optionally, the main component material of the aesthetic transparent top cover layer is polyethylene, and the additional material may include one or more of common cloth fabric, pigment, flame retardant material, and additives.

Optionally, the top cover layer is further provided with an aesthetic pattern and a least part of embroidery or covering cloth fabric which is preferred by customers and comprises silk and the like.

Optionally, the top cover layer has a mid-infrared transmission of >50%;

optionally, the bottom cover layer is thermally insulated and has a mid-ir emissivity of less than or equal to 10%, and the bottom cover layer includes a plastic film covered by a metal coating.

Optionally, the thermally insulating mid-infrared-transmitting layer comprises any one or more polyethylene-air-wrapped structures.

Optionally, the main constituent materials of the thermally insulating mid-infrared transmitting layer include polyethylene and air, and the additional material may include one or more of other plastics, pigments, flame retardants, and other functional additives.

Optionally, the thermally insulating mid-ir transmitting layer comprises a single or multi-layer thermally insulating mid-ir transmitting film structure with a microstructure that optimizes the mechanical strength against punch-through; when the thermal insulation middle infrared penetration layer is impacted by a common finger-shaped marble of a teenage child at the speed of 6 meters per second, the marble can not puncture the thermal insulation middle infrared penetration layer to contact the heating film.

Optionally, the microstructure of the thermal insulation mid-infrared transmitting layer comprises one or more of a two-dimensional air layer with a thickness of 1-3mm, 1-10mm closed bubbles, 1-10mm open bubbles, 1 μm-1000 μm closed bubbles, 1-1000 μm open bubbles, <1 μm closed bubbles, <1 μm open bubbles; the microstructure of polyethylene further comprises one or more of polyethylene fibers, high density polyethylene microstructures, low density polyethylene microstructures, oriented stretched polyethylene microstructures, non-oriented stretched polyethylene microstructures, and melt blown polyethylene microstructures.

Optionally, the thermal insulation means that the maximum actual operating thermal insulation temperature difference is greater than or equal to 50 ℃.

Optionally, the material of the electric conversion intermediate infrared emission film layer comprises a conductive nano carbon plastic compound; the square resistance of the electric conversion intermediate infrared emission film layer is less than or equal to 100 omega/sq, the thickness of the film layer is less than or equal to 200 mu m, and the intermediate infrared emissivity is more than or equal to 95 percent.

Optionally, the mid-infrared emission intensity of the top surface of the mid-infrared emission heating assembly can reach more than 50% of the emission intensity of the built-in emission source, and the mid-infrared emission intensity of the bottom surface is lower than 10% of the emission intensity of the emission source.

Optionally, the heating module displays infrared heating power emitted by the top surface and convection heating power dissipated by convection of hot air on the top surface, and the infrared heating power is more than two times higher than the convection heating power.

Optionally, the polyethylene lens capable of transmitting and focusing mid-infrared light has a mid-infrared transmittance of 50% or more, and focuses the mid-infrared light emitted by the heating element to a position about 1 meter away from the ground.

Optionally, the suspended ceiling device for mid-infrared heating includes an electric wire, a power supply, an infrared sensor, and an electric controller for controlling the independent switch of each energy-saving mid-infrared heating component to operate.

Optionally, the mid-infrared emitting heating assembly may be used for indoor heating, mid-infrared physiotherapy, or functional indoor design and combinations thereof.

In short, the utility model discloses a novel mid-infrared emission heating subassembly has filled the vacancy of technique now, has referred to low-cost, high performance mid-infrared emission heating subassembly's market demand to safe, effective and energy-conserving mode produces warm, comfortable and mid-infrared physiotherapy benefit, moreover the utility model discloses a novel colored mid-infrared emission heating subassembly still presents pleasing to the eye aesthetic feeling under the prerequisite of guaranteeing these functionalities. Furthermore, the present invention follows a method of emphasizing scientific clarity and evidence-based specifications in the process of designing a novel mid-infrared emitting heating assembly.

In some embodiments of the present invention, the method for preparing a mid-infrared emission heating assembly comprises:

(1) Preparing an electric conversion mid-infrared emission film layer by adopting a nano carbon plastic compound: dispersing plastic in an organic solvent to form a first mixed solution, and dispersing nano carbon in the first mixed solution to form a second mixed solution; preparing the electric conversion mid-infrared emission film layer by adopting a standard slurry film forming process;

(2) Respectively superposing a first electric insulating layer and a second electric insulating layer on the upper surface and the lower surface of the electric transfer intermediate infrared emission film layer to obtain a laminated structure which sequentially comprises the first electric insulating layer, the electric transfer intermediate infrared emission film layer and the second electric insulating layer, wherein the electric transfer intermediate infrared emission film layer is wrapped by the first electric insulating layer and the second electric insulating layer;

(3) And respectively adding a lamination layer on the upper surface and the lower surface of the laminated structure sequentially consisting of the first electric insulating layer, the electric conversion intermediate infrared emission film layer and the second electric insulating layer to form an intermediate infrared emission heating assembly laminated structure comprising a top surface covering layer, a polyethylene lens for transmitting and focusing intermediate infrared light, a heat insulating intermediate infrared layer, the first electric insulating layer, the electric conversion intermediate infrared emission film layer, the second electric insulating layer, the heat insulating layer and a bottom surface covering layer.

The mid ir emitting heating assembly designed as described above in some embodiments of the present invention functions in some embodiments as follows:

(1) The mid-infrared emission element of the mid-infrared emission heating component is an electric conversion mid-infrared emission film containing a low-cost nano carbon plastic compound, the film has a low square resistance smaller than 100 omega/sq, and the mid-infrared emission heating component is suitable for exerting excellent functions thereof and ensuring that no electric leakage danger exists when a human body contacts the mid-infrared emission heating component.

(2) The mid-infrared emission heating assembly operates under safe power supply conditions with a voltage below 36V, at approximately 500W/m ² Low power density and total power of about 1000W for laying and indoor design of said mid-IR emitting heating modules suitable for use with furniture and furnishings that do not absorb or reflect mid-IR, a 20m ² The indoor space can be uniformly distributed indoors due to the fact that the intermediate infrared radiation is supplied by the intermediate infrared emission heating assembly and is reflected by indoor objects, the indoor air temperature can be kept below 18 ℃, a user of the intermediate infrared emission heating assembly still generates warm feeling due to the fact that the user absorbs the intermediate infrared radiation, comfortable warm feeling similar to 25 ℃ of indoor air temperature is obtained, and a plurality of indoor objects are kept at about 18 ℃ due to the fact that the intermediate infrared radiation absorption rate is low. Comparing with the specification of a heater on a general city, every 20m ² The heating of interior space is 2000W, the utility model discloses a well infrared emission heating subassembly can provide energy-conservation and be about 50% outstanding effect. In this design consideration, the utility model estimates and actually measures the mid-IR emission heating assembly at 500W/m ² Under the low-power density working condition, the actual temperature of the electric conversion mid-infrared emission film can be maintained to be 90 ℃ when the indoor air temperature is 18 ℃, and under the state, the electric controller of the mid-infrared emission heating assembly can adjust the temperature to be lower than 90 ℃ according to the actual heating requirement of a user of the mid-infrared emission heating assembly. Estimate and judge that the thermal conductivity according to the air is 0.027W/m.K, the beautiful outer layer of middle infrared emission heating subassembly is joined in marriage porous polyethylene and is passed through outer thermal insulation layer structure (thermal insulation effect is about equal 3mm air bed) with top surface 0.1mm stamp polyethyleneThe middle infrared emission heating component is 500W/m ² Operating at a power density of from electrical to mid-infrared emission film to the surface facing the user envelope, the theoretical insulation temperature difference from the following formula (500W/m) ² Per 0.027W/mK) × ((3 mm). Times.1 m/1000 mm) was determined to be 56 ℃. Under these conditions, it has been experimentally verified that when the electrical mid-ir emitting film temperature is 82 ℃, the temperature of the top surface of the mid-ir emitting heating element facing the user of the mid-ir emitting heating element is 33 ℃, even though the mid-ir transmittance of the plastic layer of the thermally insulating structure of the mid-ir emitting heating element is only 70% causing its mid-ir absorption rise and the reduction of the thermal insulation effect, the temperature of the top surface of the mid-ir emitting heating element facing the user of the mid-ir emitting heating element is in any case well below the upper safety limit of 46 ℃. In other words, the utility model discloses a well infrared emission heating subassembly is absolute safety to well infrared emission heating subassembly user.

(3) According to Planck's law [ 1]]And when the mid-infrared emission film with the mid-infrared emissivity of 99 percent works at 90 ℃, the mid-infrared power density is about 950W/m ² Even if the mid IR emissivity is not ideal with respect to the mid IR transmittance of the thermal insulation structure of the mid IR emitting heating assembly, the mid IR emitting heating assembly can only emit 950W/m ² 70% of (i.e. 665W/m) ² The mid ir radiation condition, reduced to a black body temperature of 60 c, the user of the mid ir emitting heating module still feels that the mid ir emitting heating module heats at 60 c by absorbing mid ir, while the top and bottom of the mid ir emitting heating module are singularly maintained at 33 c. Therefore, the utility model discloses an novelty and energy-conserving effect.

(4) Furthermore, since in the mid-infrared physiotherapy industry, most known physiotherapy methods use only 10-20mW/cm ² (i.e., 100-200W/m) ² ) Therefore the utility model discloses a well infrared emission heating subassembly still provides the well infrared radiation intensity that is high enough except that it is warm comfortable, provides the well infrared physiotherapy benefit that has had scientific corroboration to its user.

(5) The utility model discloses a well infrared emission heating subassembly can adopt the low cost of [ PCT/CN2018/104910] with coal or coke preparation and have graphite alkene, carbon nanotube, carbon nanofiber and other electrically conductive nanocarbon, estimates the cost and is less than US $ 700-1000/ton, and the resistivity is less than 1 omega-cm, and the coal-based nanocarbon plastic composite middle infrared emission membrane who makes with this has the low square resistance that is less than 100 omega/sq, is fit for being used for preparing the utility model discloses a well infrared emission heating subassembly to implement under having actual cost benefit condition the utility model discloses an innovation.

(6) The utility model discloses a well infrared emission heating subassembly includes the lens board of permeable and focus mid-infrared light, the lens board is formed with penetrating mid-infrared polyethylene pressure injection.

In summary, the utility model relates to an intelligence environmental protection suspended ceiling device's of well infrared heating innovative design, production, test, verify and intelligent environmental protection use method. The intelligent environment-friendly suspended ceiling device for mid-infrared heating can be applied to the production of warm comfort for users and the production of convenient and safe mid-infrared physiotherapy effect for users.

Drawings

The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:

FIG. 1 is a diagram of the power density distribution of infrared radiation energy of a standard black body at different temperatures

FIG. 2 is a graph of IR power density distribution of different materials

FIG. 3 is a schematic view showing the structure of the mid-infrared thermal insulation packaging mid-infrared emission heating assembly for heating and physiotherapy

Figure 4 is the utility model discloses a structural schematic diagram of middle infrared heating's intelligent environmental protection suspended ceiling device

FIG. 5 is a schematic structural view of the first embodiment of the mid-IR transparent thermal insulation packaging mid-IR emitting heating assembly for heating and physiotherapy of the present invention

FIG. 6 shows the utility model discloses a schematic diagram in kind and infrared emission effect make a video recording in kind that is arranged in heating and physiotherapy to pass through the first embodiment of infrared emission heating subassembly in infrared thermal insulation encapsulation in kind

FIG. 7 shows a schematic diagram (a) of the second embodiment of the mid-IR thermal insulation packaging mid-IR heating assembly for heating and physiotherapy and a camera (b) with mid-IR emission effect in a real scene

Figure 8 (a) is the utility model discloses a scene sketch map of a third embodiment of the intelligent environmental protection suspended ceiling device of middle infrared heating

Figure 8 (b) is another scene schematic diagram of the third embodiment of the middle infrared heating intelligent environment-friendly suspended ceiling device

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

The invention discloses the detailed implementation of the invention according to the innovation of the invention content chapters.

First, fig. 3 shows in the exemplary embodiment of the present invention, the basic structure of the smart and environment-friendly suspended ceiling device with beautiful and safe mid-infrared heating of the present invention includes a plurality of mid-infrared heating components, and the following layers from the mid-infrared heating components to the top surface of the user, as shown in fig. 3, include:

(a) The middle infrared transparent layers 311-313 are superposed to form a core component of the infrared heating assembly; wherein, the middle infrared transparent layer 311 can have middle infrared transparent leadless/chromium visible color to form beautiful picture, and can have cloth fabric including silk and cotton to meet the requirement of market client for beautiful hand feeling of infrared heating component surface phase; wherein the intermediate infrared transparent layer 311 may also have a mesh structure including infrared-transmitting apertures; the grid structure is prepared by covering one or more of plastics, metals and metal coatings on plastics; wherein the intermediate infrared transparent layer 311 serves as a lens plate for transmitting and focusing intermediate infrared light, and the lens plate 312 for transmitting and focusing intermediate infrared light is formed by injection molding polyethylene; the thermal insulation middle infrared transmitting layer 313 has high thermal insulation and high middle infrared transmitting performance;

(b) An electrically insulating layer 32;

(c) A high-conductivity electrothermal plastic composite electrotransformation mid-infrared emission film 33 which takes conductive nano carbon as a filler and has a mid-infrared emissivity close to 100 percent;

(d) An electrically insulating layer 34;

(e) An ultra-thin shiny metal layer 35, wherein the infrared emissivity is close to 0;

(f) A thermally insulating polymer foam layer 36;

the utility model discloses an in some embodiments, the suspended ceiling device of well infrared heating includes electric wire 37, infrared inductor 38, controls the automatically controlled ware 39 of every energy-conserving middle infrared heating subassembly independent switch operation, automatically controlled ware includes the infrared inductor of power, detection indoor people multiposition and temperature and uses infrared inductor regulates and control the sensing circuit of infrared heating subassembly power.

In some embodiments of the present invention, the main structural material of each of the mid-infrared transparent layers 311-313 in fig. 3 is polyethylene transmitting mid-infrared, the microstructure of polyethylene includes one or more of polyethylene fiber, high density polyethylene microstructure, low density polyethylene microstructure, oriented stretched polyethylene microstructure, non-oriented stretched polyethylene microstructure, and melt-blown polyethylene microstructure, and the performance requirement has high mechanical strength to ensure durability and puncture-proof performance under the premise of mid-infrared transmission degree being close to 100%.

In some embodiments of the present invention, the performance requirement of the middle infrared transparent layer 313 in fig. 3 is high thermal insulation performance under the premise of transmitting the middle infrared degree by nearly 100%, so the main structural material of the middle infrared transparent layer 312 is middle infrared transparent porous polyethylene, the pore microstructure design of the porous polyethylene includes one or more of two-dimensional air layer with thickness of 1-3mm, closed bubble with diameter of 1mm-10mm, open bubble with diameter of 1mm-10mm, closed bubble with diameter of 1-1000 μm, open bubble with diameter of 1 μm-1000 μm, <1 μm closed bubble, and <1 μm open bubble, and the synergistic effect of the pore microstructure combination is to meet the requirement that the highest temperature difference of specific thermal insulation performance reaches 50 degrees celsius in normal operation.

In some embodiments of the present invention, the mid-infrared transparent layer 311 faces the subject to be heated, while the thermally insulating foam layer 36 is remote from the subject to be heated relative to the mid-infrared transparent layer 311.

In some embodiments of the present invention, the mid-infrared transparent layer 311 may serve as a top cover layer, and the mid-infrared transparent layer 311 may be made of polyethylene, polypropylene, or other mid-infrared transparent polymers. The mid-infrared transparent layer 311 may also include a mid-infrared transparent lead/chromium-free visible color on the surface facing the object to be heated, including lead-free and chromium-free colors, wherein the lead-free and chromium-free colors include aluminum particles, coated aluminum particles, titanium dioxide particles, coated titanium dioxide particles, nano-carbon black, perylene red, quinophthalo yellow, bismuth yellow, indigo, phthalocyanine blue, cobalt blue, copper phthalocyanine green, iron oxide orange, brown iron oxide, or lead-free yellow 83, and combinations thereof.

In some embodiments of the present invention, as shown in fig. 3, the electrically insulating layers 32 and 34 comprise thermoplastic polyurethane, thermoplastic polyester, carbon-based rubber, silicone-based rubber or polypropylene and combinations thereof.

In some embodiments of the present invention, as shown in fig. 3, the polymer in the high-conductivity nanocarbon polymer composite electrical transfer mid-ir emissive film 33 comprises thermoplastic polyurethane, thermoplastic polystyrene, thermoplastic polyester, carbon-based rubber, silicon-based rubber, polypropylene, polyvinyl alcohol, poly-p-phenylene terephthalamide, and combinations thereof. The square resistance of the electric transfer intermediate infrared emission film 33 is less than or equal to 100 omega/sq, the film thickness is less than or equal to 200 mu m, and the intermediate infrared emissivity is close to 100 percent. In a specific embodiment, the mid IR emissivity of the electro-transfer mid IR emissive film 33 is 90% or more, preferably 95% or more. The nano-carbon in the composite material comprises multi-morphology conductive nano-carbon which is obtained from coal or coke and comprises one or more of graphene, carbon nano-tubes and carbon nano-fibers. In a specific embodiment, the nanocarbon consists of coal-based nanocarbon with resistivity lower than 1 Ω · cm, which is produced at least 50 times less expensive than graphene; specifically, it is preferably produced at a cost of $ 1000/ton or less, and more preferably at a cost of $ 700/ton or less. The method disclosed in WO2020051755 is suitable for the production of coal-based nanocarbons in the present invention. In some embodiments, the carbon black is further graphitized to an electrical resistivity of less than 1 Ω · cm and used to make the infrared heating component of the present invention.

In some embodiments of the present invention, as shown in fig. 3, the ultra-thin shiny metal layer 35 having very low mid-ir emissivity comprises metal rich oxy-carbo-nitrides of aluminum, aluminum alloys, copper alloys, chromium, zirconium alloys, and combinations thereof.

In some embodiments of the present invention, as shown in fig. 3, the thermal insulation layer 36 comprises a foam sheet of thermoplastic polyurethane, thermoplastic polyester, carbon-based rubber, silicone-based rubber or polypropylene and combinations thereof.

Fig. 4 is the utility model discloses an infrared heating's suspended ceiling device's structural schematic diagram in intelligence environmental protection, fig. 4 includes the middle infrared emission heating subassembly of multiple block diagram 3. The rest of the components are the same as those of the first embodiment, and are not described in detail herein.

In some embodiments of the present invention, including the first embodiment described in the following paragraphs, the structural schematic diagram of the ir-emitting heating assembly of the present invention is shown in fig. 5, and the only difference between fig. 5 and fig. 3 is that the mid-ir transparent layers 311-313 of the mid-ir-emitting heating assembly of fig. 5 actually adopt polyethylene with an ir transmittance of approximately 100%. Tables 1-2 list the results of two specific test examples of the first embodiment and the second embodiment.

TABLE 1

In some embodiments of the present invention, including the utility model discloses a in the follow-up chapter in the first embodiment, the utility model discloses an infrared emission heating subassembly's schematic diagram in kind (fig. 6 left side) and infrared emission effect make a video recording in kind (fig. 6 right side) are shown in fig. 6.

In some embodiments of the present invention, including the second embodiment described in the following paragraphs, the mid-infrared transparent layers 311-313 of the present invention are all made of polypropylene with poorer infrared transmittance than polyethylene, the schematic diagram of the infrared emission heating assembly in the real object (fig. 7 (b) left side) and the camera of the infrared emission effect in the real object (fig. 7 (b) right side) are shown in fig. 7 (b), and the results of the test examples of the second embodiment are listed in table 2. In some embodiments of the present invention, the test and comparison the results of the embodiments show that the mid-infrared transparent layer 311-313 of the infrared emission heating assembly actually adopts the polyethylene with the mid-infrared transmittance of approximately 100% can ensure the optimal functionality of the infrared emission heating assembly.

In some embodiments of the utility model, include the utility model discloses in follow-up chapter the third embodiment, polylith unit area is 50 centimetres wide 50 centimetres long the utility model infrared heating subassembly is fused into in the suspended ceiling is decorated, the subassembly unit of every infrared heating subassembly can all carry out independent switch according to the external induction signal ware that detects the indoor human position and regulate and control, only supplies power to the subassembly unit that has near the infrared heating subassembly of warm sense demand position consciously, the most energy-conserving intelligent mid-infrared heating purpose that reaches. Fig. 8 shows a schematic view of the scene (fig. 8 (a) with two persons standing on the ground, 12 infrared heating assemblies with a unit area of 50cm x50 cm are arranged in the suspended ceiling, and the infrared radiation emitted by the infrared heating assemblies which are automatically opened in the suspended ceiling is focused at about 1m of the ground floor), (fig. 8 (b) with two persons standing on the ground, 12 infrared heating assemblies with a unit area of 50cm x50 cm are arranged in the suspended ceiling, and the infrared radiation emitted by the infrared heating assemblies which are automatically opened in the suspended ceiling is unfocused); obviously, the mid-infrared heating intelligent method is the most energy-saving heating method according to the local conditions.

TABLE 2

The overall structure of the second embodiment is the same as that of the first embodiment, except that the materials of the intermediate infrared transparent layers 311 to 313 are different. Specifically, in the first embodiment, the material of the mid-infrared transparent layers 311-313 includes polyethylene; in a second embodiment, the material of the mid-infrared transparent layers 311-313 comprises polypropylene, which is less transparent to mid-infrared than polyethylene, as shown in FIG. 7 (a).

Examples

Specific examples are set forth in detail below. It is to be understood that the following is only exemplary or illustrative of the application of the principles of the present invention. Many modifications may be made to adapt other compositions, methods, and systems to the teachings of the present invention without departing from the essential scope thereof. Additional requirements include such modifications and arrangements. Thus, while the invention has been described above in detail, the following examples provide further details that are presently considered to be the most practical.

First embodiment

Preparation method and performance test of middle infrared emission heating assembly manufactured by porous polyethylene middle infrared transmission thermal insulation layer structure

In this preferred embodiment of the present invention, a high performance mid-ir emitting heating assembly is produced. Firstly, coal-based nano carbon with high conductivity is used as printing ink, and a standard film casting process is adopted to prepare the nano carbon compound mid-infrared emission film. The sheet resistance of the resulting film was 26. + -.2. Omega./sq and the thickness was 80. + -.2. Mu.m, and a size of 2500cm was prepared ² The electrothermal film of (1). Under the applied voltage of 35V, the rated power of the middle infrared emission heating component is respectively 150W and 0.06W/cm ² . The porous polyethylene intermediate infrared transmitting heat insulation layer structure consists of porous polyethylene with heat insulation effect close to 3mm air layer. The top layer facing the user consists of coloured polyethylene, with a mid-ir transmission close to 100% and a mid-ir emissivity close to 100%. The structure of the mid-infrared emission heating component is shown as the figure5, respectively.

The mid ir-emitting heating module in this example had an electrotransfer mid ir emitting film temperature of 82 ℃ when actually operated at 135W, and the temperature of the heating-facing surface of the mid ir-emitting heating module exposed to an indoor environment of 18 ℃ was 33 ℃. As shown in the performance data table of Table 1, the temperature measured with the calibrated thermocouple at the mid IR emitting film was 82 deg.C, the temperature measured with the calibrated thermocouple at the top cover surface was 33 deg.C, and the black body temperature equivalent of the IR radiation intensity in the mid IR emitting heating package measured with the calibrated mid IR radiation intensity detector at 50cm from the top cover was 52 deg.C. The reason why the mid-IR radiation temperature equivalent (52 ℃) received outside the mid-IR emitting heating element is lower than the actual mid-IR emitting film temperature (82 ℃) is that the mid-IR transmittances of the cellular polyethylene thermal insulation layer and the polyethylene lens are not 100%, but the mid-IR radiation intensity in the top surface of the actual heating element is estimated to be still 70% of the mid-IR radiation intensity of the built-in emission source. In this example, the mid IR emissivity of the mid IR emitting heating assembly bottom cover was measured to be 10% under the conditions of a positive mid IR emitting heating assembly 50cm from the bottom cover using a calibrated mid IR radiation intensity detector.

FIG. 6 shows a photograph of a real object of the mid-infrared emission heating module and mid-infrared photography, in this embodiment, the mid-infrared emission area of the real object is 2500cm ² (50 cm in length and 50cm in width) and a medium infrared camera powered at 135W showed an average black body temperature equivalent of 52 ℃. The results data table of table 1 shows that the temperature measured with the calibrated thermocouple in the electrotransfer infrared emission film was 82 c, the temperature measured with the calibrated thermocouple on the top cover surface was 33 c and the room temperature was 18 c. The result proves that the mid-infrared emission heating assembly of the embodiment can radiate the mid-infrared electromagnetic wave with sufficient radiation intensity under the effects of attractiveness and energy saving, and provides mid-infrared heating and mid-infrared physiotherapy functions.

The mid-infrared emission heating module of this embodiment was still normally operated when the input electric power was 150W, the calibrated thermocouple measured the internal emission temperature at 88 deg.c and the top surface temperature at 36 deg.c, and the external infrared meter measured the top surface infrared temperature at 55 deg.c.

Second embodiment

Preparation method and performance test of intermediate infrared emission heating assembly prepared from porous polypropylene intermediate infrared transmission thermal insulation layer structure

In this preferred embodiment of the present invention, a lower performance mid-infrared emitting heating assembly is produced. Firstly, coal-based nano carbon with high conductivity is used as printing ink, and a standard film casting process is adopted to prepare the nano carbon compound mid-infrared emission film. The sheet resistance of the resulting film was 26. + -.2. Omega./sq and the thickness was 80. + -.2. Mu.m, and a size of 2500cm was prepared ² The electrothermal film of (3). The rated power of the middle infrared emission heating component is 150W and 0.060W/cm under the applied voltage of 35V ² . The porous polypropylene mid-infrared transmitting thermal insulation layer structure is composed of porous polypropylene with the thickness of 5 mm. The top layer facing the user is made of colored polypropylene, the physical pattern is shown in fig. 7 (b), and the structure of the mid-ir emitting heating module in this embodiment is shown in fig. 7 (a).

As shown in Table 2, the temperature measured with the calibrated thermocouple at the mid IR emitting film was 80 deg.C, the temperature measured with the calibrated thermocouple at the top cover surface was 37.5 deg.C, and the black body temperature equivalent of the IR radiation intensity in the mid IR emitting heating package measured with the calibrated mid IR radiation intensity detector at 50cm from the top cover for the mid IR emitting heating package was 38 deg.C when operated at 150W. In this embodiment, the porous polypropylene has a low mid-infrared transmittance through the mid-infrared thermal insulation layer structure, absorbs the mid-infrared from the emission source to cause a temperature rise, the thermal insulation property fails, and the power consumption is 150W for maintaining the emission source at 80 ℃, and the temperature of the top surface of the heating assembly is 37.5 ℃ which is close to the equivalent temperature of the infrared black body on the top surface of the heating assembly measured by an external infrared meter, and the equivalent measured infrared radiation mainly comes from the top surface of the heating assembly rather than from the internal electrotransfer mid-infrared emission film and passes through the porous polypropylene layer to exit the heating assembly. In summary, the IR intensity in the top surface of the heating module is the IR intensity in the built-in electric transmitter and the IR transmission energy power density is 105W/m ² And infrared source built-in transmission heatingThe mid-infrared emission of the top cover and the porous polypropylene thermal insulation puncture-resistant layer is about 106W/m in total effective top IR energy power density, as measured by an IR meter at 38 ℃ equivalent to black body temperature ² The ratio of the total effective infrared radiation transfer energy power density to the effective convective transfer energy power density is therefore close to 1; comparing the first and second embodiments using this analysis, the ratio of the total effective ir delivered power density to the effective convective delivered power density of the first embodiment is about 3, which shows that the second embodiment has no energy saving effect and also has the disadvantage of low humidity caused by convective heating air.

The results demonstrate that the mid-ir emitting heating module of this example heated up as the polypropylene absorbs radiation from the mid-ir emitting film in the middle portion when the mid-ir emitting heating module was in operation because polypropylene has a lower mid-ir transmittance than polyethylene, and the porous polypropylene thermally insulating layer structure is less thermally insulating than the first example.

Third embodiment

In the preferred embodiment of the present invention, 16 infrared heating assemblies with unit area of 50cm x50 cm and rated input power of 150W are integrated into the ceiling decoration of a room of 20 square meters, and the functionality of each infrared heating assembly unit is the same as that of the first embodiment of the present invention; in this embodiment, the component unit of each infrared heating component can be independently switched and controlled according to an external sensing signal for detecting the position of an indoor human body, so as to form the component unit which intentionally supplies power only to the infrared heating component near the position where the heating demand is present. Fig. 8 shows a schematic view of the suspended ceiling (fig. 8 (a) in which two persons stand on the ground and 12 infrared heating units having a unit area of 50cm x50 cm are installed in the suspended ceiling, and infrared radiation emitted from the infrared heating units automatically turned on in the suspended ceiling is focused at about 1m from the floor), (fig. 8 (b) in which two persons stand on the ground and 12 infrared heating units having a unit area of 50cm x50 cm are installed in the suspended ceiling, and infrared radiation emitted from the infrared heating units automatically turned on in the suspended ceiling is unfocused); obviously, the mid-infrared heating intelligent method is the most energy-saving heating method according to the local conditions.

Without further elaboration, it is believed that one skilled in the art can, using the description herein, utilize the present invention to its fullest extent. The embodiments described herein are to be construed as illustrative and not limitative of the remainder of the disclosure in any way whatsoever. Although embodiments have been shown and described, many variations and modifications may be made by one skilled in the art without departing from the spirit and teachings of the invention. Accordingly, the scope of protection is not limited by the description set out above, but is only limited by the claims which follow, including all equivalents of the subject matter of the claims. The inventive content of all patents, patent applications, and publications cited herein is hereby incorporated by reference, to the extent that they provide procedures or other details consistent with and complementary to those set forth herein.

Claims (9)

1. The intelligent environment-friendly ceiling device for mid-infrared heating is characterized by comprising a plurality of energy-saving mid-infrared heating components arranged on a ceiling, wherein each component has a laminated structure and comprises a middle-outer top surface covering layer facing the ground, a lens layer capable of penetrating and focusing middle infrared light, a thermal insulation middle-infrared layer, a heating element, a thermal insulation layer and a bottom surface covering layer;

the spectrum wavelength range of the mid-infrared is 3-50 mu m wave band;

the infrared transmittance in the top surface covering layer is not less than 50%;

the thermal insulation mid-infrared transmitting layer comprises one or more polyethylene air-wrapped structures;

the infrared emission intensity in the top surface covering layer is more than 50% of the emission intensity of the built-in heating element, and the infrared emission intensity in the bottom surface is lower than 10% of the infrared emission intensity in the heating element;

the middle infrared transmittance of the lens layer capable of penetrating and focusing middle infrared light is not less than 50%, and the middle infrared light emitted by the heating element can be focused to a position about 1 meter away from the ground;

the ceiling device for mid-infrared heating further comprises an electric wire, a power supply, an infrared inductor and an electric controller for controlling each energy-saving mid-infrared heating component to realize independent switch operation.

2. The apparatus of claim 1 wherein the heating module has an aesthetically pleasing mid-IR transparent top cover layer comprising one or more of a very high percent porosity grid structure matching ceiling decoration, an aesthetically pleasing high mid-IR transmittance fabric structure, an aesthetically pleasing high mid-IR transmittance film structure, the structure being made primarily of polyethylene.

3. The apparatus according to claim 1, wherein the thermally insulating mid-infrared transparent layer is 1 μm-1 cm thick.

4. The device of claim 1, wherein the thermal insulation means a maximum practical operating thermal insulation temperature difference of at least 50 ℃.

5. The apparatus of any one of claims 1-4, wherein the suspended ceiling apparatus comprises a remotely controllable power management device; the power management device comprises an infrared photometer, a thermometer and an ammeter which are used for detecting the functions of the intermediate infrared emission heating assembly, a power supply, an infrared sensor for detecting the position and the temperature of an indoor human body, an electric controller and a remote controller which utilize the infrared sensor to regulate and control the power supply of the intermediate infrared emission heating assembly.

6. The device of any one of claims 1-4, wherein the heating element comprises an electrotransport mid-infrared emissive film layer comprising an electrically conductive nanocarbon plastic composite; the square resistance of the electric conversion intermediate infrared emission film layer is less than or equal to 100 omega/sq, the thickness of the film layer is less than or equal to 200 mu m, and the intermediate infrared emissivity is greater than or equal to 95%.

7. The device of any of claims 1-4, wherein the bottom surface capping layer has a thickness of 100nm or less.

8. The apparatus as claimed in any one of claims 1 to 4, wherein the component sensing the human body is automatically turned on and supplies heat, and the component not sensing the human body is automatically turned off and is in a non-heating state.

9. The device of any of claims 1-4, wherein the lens layer that transmits and focuses mid-IR light comprises polyethylene.

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