Integrated Structure of Radiative Cooling and Thermoelectric Generation

Abstract

The present invention discloses an integrated structure of radiative cooling and thermoelectric power generation, which includes an inner enclosure component, an outer enclosure component, and an electric control component. The inner enclosure component includes a thermal insulation layer and a thermoelectric power generation chip connected to the thermal insulation layer, and the thermal insulation layer and the thermoelectric power generation chip are arranged along the height extension direction of the wall. The outer enclosure component covers the side of the inner enclosure component facing the outdoor, and the outer enclosure component includes a radiative cooling film and an aerogel. The radiative cooling film covers the thermoelectric power generation chip and the side of the thermal insulation layer facing the outdoor, and the aerogel covers the side of the radiative cooling film facing the outdoor. The electric control component is electrically connected to the thermoelectric power generation chip, and the electric control component is used to control the opening or closing of the thermoelectric power generation chip. The technical solution of the present invention combines the radiative cooling technology with the semiconductor thermoelectric power generation technology, generates electricity through the temperature difference generated by radiative cooling and stores electrical energy, so that the integrated structure of radiative cooling and thermoelectric power generation can adjust the indoor temperature and improve the resource utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of building energy conservation, and particularly to an integrated structure of radiative cooling and thermoelectric power generation. Background Art

[0002] Due to the energy demand and the need for human sustainable development, photovoltaic power generation and solar thermal collection, especially building-integrated solar energy, are important technical means. However, although building-integrated solar energy can convert light energy into electrical energy and generate electricity while shading the building, the building-integrated solar energy system cannot play a role in regulating the indoor temperature. If the indoor temperature needs to be regulated, air-conditioning refrigeration or other household appliances are generally used, which consumes too much energy, cannot play a greater role in building energy conservation, and has low resource utilization rate. Summary of the Invention

[0003] The main object of the present invention is to propose an integrated structure of radiative cooling and thermoelectric power generation, aiming to solve the technical problem that the building envelope structure cannot regulate the indoor temperature and optimize the indoor thermal environment while generating electricity.

[0004] To achieve the above object, the integrated structure of radiative cooling and thermoelectric power generation proposed by the present invention is used for installation on a wall. The integrated structure of radiative cooling and thermoelectric power generation includes:

[0005] An inner envelope component, the inner envelope component includes a thermal insulation layer and a thermoelectric power generation sheet connected to the thermal insulation layer, and the thermal insulation layer and the thermoelectric power generation sheet are arranged along the height extension direction of the wall;

[0006] An outer envelope component, covering the side of the inner envelope component facing the outside. The outer envelope component includes a radiative cooling film and an aerogel. The radiative cooling film covers the thermoelectric power generation sheet and the side of the thermal insulation layer facing the outside, and the aerogel covers the side of the radiative cooling film facing the outside;

[0007] An electric control component, the electric control component is electrically connected to the thermoelectric power generation sheet, and the electric control component is used to control the opening or closing of the thermoelectric power generation sheet.

[0008] In one embodiment, the outer envelope component further includes a concrete body, the concrete body covers the surface of the thermal insulation layer facing the outside, and the radiative cooling film covers the surface of the concrete body and the side of the thermoelectric power generation sheet facing the outside.

[0009] In one embodiment, the inner enclosure component includes a plurality of the thermal insulation layers and a plurality of the thermoelectric generators, and the outer enclosure component includes a plurality of the radiative cooling films, a plurality of the aerogels, and a plurality of the concrete bodies; an air flow channel is formed between every two adjacent thermal insulation layers, and each thermoelectric generator correspondingly covers the corresponding air flow channel; a plurality of the concrete bodies correspondingly cover the surfaces of the corresponding thermal insulation layers facing the outdoor side; a plurality of the radiative cooling films correspondingly cover the surfaces of the corresponding thermoelectric generators and the concrete bodies facing the outdoor side; and a plurality of the aerogels correspondingly cover the surfaces of the corresponding radiative cooling films facing the outdoor side.

[0010] In one embodiment, the radiative cooling film includes a first cooling section, a second cooling section connected to one end of the first cooling section, and a third cooling section connected to the end of the second cooling section away from the first cooling section;

[0011] The first cooling section covers the lower surface of the upper concrete body facing the outdoor side;

[0012] The second cooling section covers the surface of the thermoelectric generator facing the outdoor side;

[0013] The third cooling section covers the upper surface of the lower concrete body facing the outdoor side.

[0014] In one embodiment, the longitudinal section of the aerogel along the wall thickness direction is arranged in an isosceles trapezoid shape.

[0015] In one embodiment, the longitudinal section of the concrete body along the wall thickness direction is arranged in an isosceles triangle shape.

[0016] In one embodiment, a plurality of the thermoelectric generators are arranged at intervals along the length direction of the wall, and / or a plurality of the thermoelectric generators are arranged at intervals along the height direction of the wall.

[0017] In one embodiment, the material of the aerogel is PEA material.

[0018] In one embodiment, a window for allowing heat to pass through is formed at the position of the wall corresponding to the thermoelectric generator.

[0019] In one embodiment, the thermoelectric generator is connected to a storage battery, and the storage battery is used to store the electric energy generated by the thermoelectric generator.

[0020] The technical solution of the present invention adopts the integrated structure of radiative cooling and thermoelectric power generation, which includes an inner enclosure component, an outer enclosure component, and an electric control component. The inner enclosure component includes a thermal insulation layer and a thermoelectric power generation sheet connected to the thermal insulation layer, and the thermal insulation layer and the thermoelectric power generation sheet are arranged along the height extension direction of the wall. The outer enclosure component covers the side of the inner enclosure component facing the outside, and the outer enclosure component includes a radiative cooling film and aerogel. The radiative cooling film covers the thermoelectric power generation sheet and the side of the thermal insulation layer facing the outside, and the aerogel covers the side of the radiative cooling film facing the outside. The electric control component is electrically connected to the thermoelectric power generation sheet, and the electric control component is used to control the opening or closing of the thermoelectric power generation sheet. With such a setting, the radiative cooling technology is combined with the semiconductor thermoelectric power generation technology, and the thermoelectric power generation generated by radiative cooling is used to store electrical energy, so that the integrated structure of radiative cooling and thermoelectric power generation can adjust the indoor temperature, reduce the indoor air-conditioning cooling load, save electrical energy, optimize the indoor thermal environment, improve the human body comfort, and improve the resource utilization rate. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a side view of the thermoelectric power generation sheet in the on state in an embodiment of the integrated structure of radiative cooling and thermoelectric power generation of the present invention;

[0023] Figure 2 It is a side view of the thermoelectric power generation sheet in the off state in an embodiment of the integrated structure of radiative cooling and thermoelectric power generation of the present invention;

[0024] Figure 3 It is a front perspective view of an embodiment of the integrated structure of radiative cooling and thermoelectric power generation of the present invention.

[0025] Explanation of the reference numerals in the drawings:

[0026] Label Name Label Name 100 Wall 420 Second refrigeration section 200 Thermoelectric generator 430 Third refrigeration section 300 Insulation layer 500 Aerogel 400 Radiative cooling film 600 Concrete body 410 First refrigeration section 700 Heat

[0027] The realization, functional characteristics, and advantages of the object of the present invention will be further described in combination with the embodiments with reference to the drawings. Detailed Embodiments

[0028] The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0031] Due to the demand for energy and the need for human sustainable development, photovoltaic power generation and solar thermal collection, especially building-integrated solar energy, are one of the important technical means. However, although building-integrated solar energy can convert light energy into electrical energy and generate electricity while shading the building, the building-integrated solar energy system cannot play a role in regulating the indoor temperature. If you want to regulate the indoor temperature, generally air-conditioning refrigeration or other household appliances are used, which consumes too much energy, cannot play a greater role in building energy conservation, and has a low resource utilization rate.

[0032] The present invention proposes an integrated structure of radiative cooling and thermoelectric power generation for installation on a wall.

[0033] The integrated structure of radiative cooling and thermoelectric power generation includes an inner enclosure component, an outer enclosure component, and an electronic control component. The inner enclosure component includes a thermal insulation layer and a thermoelectric power generation chip connected to the thermal insulation layer, and the thermal insulation layer and the thermoelectric power generation chip are arranged along the height extension direction of the wall. The outer enclosure component covers the side of the inner enclosure component facing the outdoors. The outer enclosure component includes a radiative cooling film and aerogel. The radiative cooling film covers the thermoelectric power generation chip and the side of the thermal insulation layer facing the outdoors, and the aerogel covers the side of the radiative cooling film facing the outdoors. The electronic control component is electrically connected to the thermoelectric power generation chip, and the electronic control component is used to control the thermoelectric power generation chip to be turned on or off.

[0034] It should be noted that the thermoelectric power generation chip can convert thermal energy into electrical energy. Thermoelectric power generation technology is a new energy technology that directly converts thermal energy into electrical energy by using the semiconductor Seebeck effect. It has the characteristics of compact structure, no moving parts, reliable performance, maintenance-free, no noise during operation, low-carbon environmental protection, small size, high efficiency, maintenance-free, and long service life. The radiative cooling film can achieve a cooling effect and is a typical passive cooling technology. Through the high transmittance of the atmosphere in the "atmospheric window" band (8-13μm), the heat of the radiative cooling film on the earth's surface is dissipated into the low-temperature outer space in the form of radiation, making full use of the low-temperature cold source characteristics of the outer space to achieve a passive cooling effect. As a building cooling method, sky radiative cooling not only has zero energy consumption but also zero pollution, and has good energy-saving and environmental protection significance.

[0035] Specifically, the thermal insulation layer is a thermal insulation material that plays a role in heat preservation. Aerogel can play a role in heat conduction isolation. The electric control component can control the opening or closing of the thermoelectric generator through an electric signal, allowing heat to pass through the thermoelectric generator in the required direction, achieving the effect of adjusting the indoor environment. During the day in summer: the indoor temperature is lower than the outdoor temperature, the thermoelectric generator is in a closed state, and heat is isolated from each other through the aerogel, enabling normal heat insulation indoors, and the temperature facing the outside is cooled by the radiative cooling film covered with the aerogel material; at night in summer: the indoor temperature is higher than the outdoor temperature, the electric control component controls the thermoelectric generator to be in an open state, and the indoor heat is converted into electrical energy through the thermoelectric generator, thus reducing the indoor temperature; during the day in winter: the indoor temperature is higher than the outdoor temperature, the electric control component controls the thermoelectric generator to be in a closed state, and the indoor heat is isolated from each other through the aerogel, thus enabling normal heat preservation indoors; at night in winter: the indoor temperature is higher than the outdoor temperature, the thermoelectric generator is in a closed state, and the indoor heat is isolated from each other through the aerogel, thus enabling normal heat preservation indoors. With such a setting, the radiative cooling technology is combined with the semiconductor thermoelectric power generation technology, and the temperature difference generated by radiative cooling is used for power generation and energy storage, so that the integrated structure of radiative cooling and thermoelectric power generation can adjust the indoor temperature, reduce the indoor air-conditioning cooling load, save electric energy, optimize the indoor thermal environment, improve the human comfort level, and improve the resource utilization rate.

[0036] In one embodiment, the outer enclosure component further includes a concrete body, the concrete body covers the surface of the thermal insulation layer facing the outside, and the radiative cooling film covers the surfaces of the concrete body and the thermoelectric generator facing the outside. The concrete body can also play a role in heat isolation, improving the heat preservation effect of the thermal insulation layer.

[0037] In one embodiment, the inner enclosure component includes a plurality of the thermal insulation layers and a plurality of the thermoelectric generators, and the outer enclosure component includes a plurality of the radiative cooling films, a plurality of the aerogels and a plurality of the concrete bodies; an air flow channel is formed between every two adjacent thermal insulation layers, and each thermoelectric generator correspondingly covers the corresponding air flow channel; a plurality of the concrete bodies correspondingly cover the surfaces of the corresponding thermal insulation layers facing the outside; a plurality of the radiative cooling films correspondingly cover the surfaces of the corresponding thermoelectric generators and the concrete bodies facing the outside; a plurality of the aerogels correspondingly cover the surfaces of the corresponding radiative cooling films facing the outside. In this way, the thermoelectric generators and the radiative cooling films cover the entire wall surface, making reasonable use of the external space of the building and improving the resource utilization rate.

[0038] In one embodiment, the radiative cooling film includes a first cooling section, a second cooling section connected to one end of the first cooling section, and a third cooling section connected to one end of the second cooling section away from the first cooling section; the first cooling section covers the lower surface of the upper concrete body facing the outdoor side; the second cooling section covers the surface of the thermoelectric generator facing the outdoor side; the third cooling section covers the upper surface of the lower concrete body facing the outdoor side. In this embodiment, the first cooling section, the second cooling section, and the third cooling section are all rectangular.

[0039] The shape of the aerogel can be in various forms, as long as it can fill the surface of the radiative cooling film. In one embodiment, the longitudinal section of the aerogel along the thickness direction of the wall is isosceles trapezoidal.

[0040] In one embodiment, the longitudinal section of the concrete body along the thickness direction of the wall is isosceles triangular. Of course, in other embodiments, the concrete body can also be square.

[0041] In one embodiment, multiple thermoelectric generators are arranged at intervals along the length direction of the wall, and / or multiple thermoelectric generators are arranged at intervals along the height direction of the wall. It can be understood that the thermoelectric generators can be arranged in a matrix on the surface of the wall, or multiple thermoelectric generators are arranged at intervals along the length direction of the wall, or multiple thermoelectric generators are arranged at intervals along the height direction of the wall.

[0042] In one embodiment, the material of the aerogel is PEA material. Polyethylene aerogel, namely PEA, can perform deep sub-environment radiative cooling. Due to its unique porous structure and ultra-low density, PEA has special optical and thermal properties and is very suitable for high-performance sub-environment radiative cooling.

[0043] To ensure that heat can enter the thermoelectric generator, in one embodiment, a window for heat to pass through is opened at the position of the wall corresponding to the thermoelectric generator.

[0044] In one embodiment, the thermoelectric generator is connected to a storage battery, and the storage battery is used to store the electric energy generated by the thermoelectric generator. While the thermoelectric generator reduces the indoor temperature, the generated electricity is stored in the storage battery. The storage battery can store the electric energy, or the storage battery is connected to household appliances such as light bulbs indoors through wires. In this way, the resource utilization rate is improved, and the building energy-saving effect is ensured.

[0045] The above are only alternative embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An integrated structure of radiative cooling and thermoelectric power generation, which is used to be installed on a wall. Characterized in that, The integrated structure of radiative cooling and thermoelectric power generation includes: An inner enclosure component, which includes a thermal insulation layer and a thermoelectric power generation chip connected to the thermal insulation layer, and the thermal insulation layer and the thermoelectric power generation chip are arranged along the height extension direction of the wall; An outer enclosure component, which covers the side of the inner enclosure component facing the outdoors. The outer enclosure component includes a radiative cooling film and aerogel. The outer enclosure component also includes a concrete body, and the concrete body covers the surface of the thermal insulation layer facing the outdoors. The radiative cooling film covers the surfaces of the concrete body and the thermoelectric power generation chip facing the outdoors, and the aerogel covers the side of the radiative cooling film facing the outdoors. The longitudinal section of the aerogel along the wall thickness direction is arranged in an isosceles trapezoid; The radiative cooling film includes a first cooling section, a second cooling section connected to one end of the first cooling section, and a third cooling section connected to the end of the second cooling section far from the first cooling section; the first cooling section is used to cover the lower surface of the upper concrete body facing the outdoors; the second cooling section covers the surface of the thermoelectric power generation chip facing the outdoors; the third cooling section is used to cover the upper surface of the lower concrete body facing the outdoors, and the first cooling section, the second cooling section, and the third cooling section are all arranged in a rectangle; An electric control component, which is electrically connected to the thermoelectric power generation chip, and the electric control component is used to control the thermoelectric power generation chip to be turned on or off.

2. The integrated structure of radiative cooling and thermoelectric power generation according to claim 1, Characterized in that, The inner enclosure component includes a plurality of the thermal insulation layers and a plurality of the thermoelectric power generation chips, and the outer enclosure component includes a plurality of the radiative cooling films, a plurality of the aerogels and a plurality of the concrete bodies; An air flow channel is formed between every two adjacent thermal insulation layers, and each thermoelectric power generation chip correspondingly covers the corresponding air flow channel; A plurality of the concrete bodies correspondingly cover the surfaces of the corresponding thermal insulation layers facing the outdoors; A plurality of the radiative cooling films correspondingly cover the surfaces of the corresponding thermoelectric power generation chips and the concrete bodies facing the outdoors; A plurality of the aerogels correspondingly cover the surfaces of the corresponding radiative cooling films facing the outdoors.

3. The integrated structure of radiative cooling and thermoelectric power generation according to claim 2, Characterized in that, The longitudinal section of the concrete body along the wall thickness direction is arranged in an isosceles triangle.

4. The integrated structure of radiative cooling and thermoelectric power generation according to claim 2, Characterized in that, A plurality of the thermoelectric power generation chips are arranged at intervals along the length direction of the wall, and / or, a plurality of the thermoelectric power generation chips are arranged at intervals along the height direction of the wall.

5. The integrated structure of radiative cooling and thermoelectric power generation according to claim 1, Characterized in that, The material of the aerogel is PEA material.

6. The integrated structure of radiative cooling and thermoelectric power generation according to claim 1, It is characterized in that a window for heat to pass through is provided at the position of the wall corresponding to the thermoelectric power generation sheet.

7. The integrated structure of radiative cooling and thermoelectric power generation according to claim 1, It is characterized in that the thermoelectric power generation sheet is connected with a storage battery, and the storage battery is used for storing the electric energy generated by the thermoelectric power generation sheet.

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