CN216448687U

CN216448687U - Insulation board based on liquid metal alloy thermal switch

Info

Publication number: CN216448687U
Application number: CN202122220672.1U
Authority: CN
Inventors: 吴永佳; 杨凯; 职聪聪; 欧阳彝廉; 苏昌榕; 明廷臻
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-05-06
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a heat insulation board based on a liquid metal alloy thermal switch, which comprises an outer aluminum plate, an inner aluminum plate and a plurality of thermal switches, wherein the outer aluminum plate is arranged on the outer side of the heat insulation board; every the hot switch includes the route pipe that cavity base and slope were arranged, and cavity base one side is fixed at outside aluminum plate's medial surface, and the bottom and the cavity base of route pipe are linked together, and inside the medial surface of inboard aluminum plate was stretched into from inboard aluminum plate to the high-end of route pipe, was full of the liquid metal alloy of normal atmospheric temperature in the cavity base. The outdoor heat energy-saving building material allows the outdoor heat energy to enter the room, prevents the indoor heat energy from dissipating outdoors, can absorb the outdoor heat energy and prevent the indoor heat energy from dissipating, effectively reduces the building energy consumption, has good energy-saving effect and is low in cost.

Description

Insulation board based on liquid metal alloy thermal switch

Technical Field

The utility model belongs to the technical field of energy conservation and environmental protection, and particularly relates to a heat-insulation plate based on a liquid metal alloy thermal switch.

Background

With the rapid development of global industrialization process, under the situation that the problem of the total amount of traditional fossil energy is more and more prominent and the harmful gas emission causes more and more serious pollution to the environment, people reduce energy consumption by optimizing the original energy structure and a new way by searching for new energy, and the two ways solve the problems of energy crisis and harmful gas emission. In the share of energy consumption, the proportion of building energy consumption is very high, the building energy consumption of developed countries in Europe and America is 30-50%, and the energy consumption of the whole life cycle of the buildings in China reaches 23.8% of the total energy consumption of China in 2018, so that the building energy saving significance is great and cannot be ignored.

In the main energy consumption of China, energy for buildings, industry and transportation occupies the vast majority of the increase of energy demand. In recent years, the building industry in China has made outstanding development achievement. With the continuous development of national economy, the requirements of people on living level are continuously improved, the development process of urbanization in China is gradually accelerated, the urbanization level shows a good incremental change situation, and urban construction work is also continuously carried out. In the background of the times of increasing urbanization level, it suffers from the problem of energy consumption. The resource and energy consumption speed of the building industry is gradually increased. At the present stage, the use of resources and energy resources in China is particularly in short supply, energy shortage and environmental deterioration become important barriers influencing economic and social development, and under the future development trend, in order to ensure the sustainable development of the building industry, the consumption of non-renewable resources must be controlled, energy-saving design work is timely carried out, the building energy-saving design concept is reasonably used, the energy loss is fundamentally reduced, and the resources are saved.

The building energy-saving design is in accordance with the sustainable development concept, and more green energy-saving building materials are adopted during building design, so that the use of non-renewable resources is reduced fundamentally. The building energy-saving design mainly carries out energy-saving design to envelope, and roof energy-saving design is wherein more important part, and current roof energy-saving design has: overhead ventilation roofs, planting roofs, water storage roofs, roofs with heat insulation materials laid down, and the like. The design cost is low, some designs cannot utilize external heat, the energy saving is limited, and the hidden danger of roof water leakage exists.

Disclosure of Invention

The utility model aims to overcome the defects of the energy-saving design of the existing enclosure structure and provide a liquid metal alloy thermal switch-based insulation board which allows external heat to enter the room and prevents the indoor heat from being dissipated outdoors.

In order to achieve the purpose, the heat insulation plate based on the liquid metal alloy thermal switch comprises an outer aluminum plate, an inner aluminum plate and a plurality of thermal switches; every the hot switch includes the route pipe that cavity base and slope were arranged, and cavity base one side is fixed at outside aluminum plate's medial surface, and the bottom and the cavity base of route pipe are linked together, and inside the medial surface of inboard aluminum plate was stretched into from inboard aluminum plate to the high-end of route pipe, was full of the liquid metal alloy of normal atmospheric temperature in the cavity base.

Further, a plurality of the thermal switches are uniformly arranged along the length direction of the outer aluminum plate.

Further, a heat insulation material layer is filled between the outer aluminum plate and the inner aluminum plate or vacuum pumping is performed.

Further, the normal-temperature liquid metal alloy is amalgam, gallium-indium alloy, gallium-indium-zinc alloy or gallium-indium-tin alloy.

Compared with the prior art, the utility model has the following advantages: the heat insulation board based on the liquid metal alloy thermal switch allows external heat to enter the room, prevents the indoor heat from being dissipated outdoors, can absorb the external heat and prevent the indoor heat from being dissipated, effectively reduces the energy consumption of the building, has good energy-saving effect and is low in cost.

Drawings

Fig. 1 is a schematic structural diagram of a heat insulation plate based on a liquid metal alloy thermal switch according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1, the insulation board based on the liquid metal alloy thermal switch comprises an outer aluminum plate 1, an inner aluminum plate 2, an insulating material layer 3 lining between the outer aluminum plate 1 and the inner aluminum plate 2, and a plurality of groups of thermal switches 4. A plurality of thermal switch 4 evenly arranges along aluminum plate's length direction, and every thermal switch 4 includes cavity base 5 and the route pipe 6 that the slope was arranged, and 5 one sides of cavity base are fixed at the medial surface of outside aluminum plate 1, and the bottom and the cavity base 5 of route pipe 6 are linked together, and inside the medial surface of route pipe 6 high-end follow inboard aluminum plate 2 stretched into inboard aluminum plate 2, was filled with liquid metal alloy 7 of normal atmospheric temperature in the cavity base 5.

According to the direction of the figure 1, heat is transmitted into the outer aluminum plate 1 from the outside, the heat capacity of the normal-temperature liquid metal alloy 7 on the inner side of the outer aluminum plate 1 is large, a large amount of heat can be easily absorbed and stored, the heat entering from the outer aluminum plate is absorbed and stored, when the temperature is higher than the critical temperature, the liquid metal is heated and expands to be in contact with the inner aluminum plate through the passage pipe, at the moment, the heat path is in a closed state, heat flow can be smoothly transmitted from the left side to the right side, and finally, the heat flow enters a room after being transmitted to the inner aluminum plate 2; under the condition of being lower than the critical temperature, the normal-temperature liquid metal alloy is positioned on the cavity base, the liquid metal alloy is not in contact with the inner aluminum plate, the heat circuit is in a disconnected state at the moment, and heat flow cannot be transmitted from the left side to the right side; the insulating material layer 3 prevents the reverse flow of heat to reduce heat loss.

And a heat insulating material layer can be filled between the outer aluminum plate and the inner aluminum plate or the space between the outer aluminum plate and the inner aluminum plate can be vacuumized, so that heat is prevented from being transferred from the indoor space to the outdoor space.

The normal temperature liquid metal alloy 7 can be amalgam, gallium-indium alloy, gallium-indium-zinc alloy, gallium-indium-tin alloy and other alloys with lower melting points, and has the function that when the temperature of the surface of the aluminum plate on the outer side is higher than the critical temperature, the normal temperature liquid metal expands and contacts with the surface of the aluminum plate on the inner side, so that heat conduction is realized, and outdoor heat can be smoothly transmitted into the room.

Claims

1. The utility model provides an heated board based on liquid metal alloy hot switch which characterized in that: comprises an outer aluminum plate (1), an inner aluminum plate (2) and a plurality of thermal switches (4); every hot switch (4) are including cavity base (5) and route pipe (6) that the slope was arranged, and the medial surface at outside aluminum plate (1) is fixed to cavity base (5) one side, and the bottom and cavity base (5) of route pipe (6) are linked together, and inside inboard aluminum plate (2) was stretched into from the medial surface of inboard aluminum plate (2) to the high-end of route pipe (6), was filled with normal atmospheric temperature liquid metal alloy (7) in cavity base (5).

2. The insulation board based on the liquid metal alloy thermal switch according to claim 1, wherein: the plurality of thermal switches (4) are uniformly arranged along the length direction of the outer aluminum plate (1).

3. The insulation board based on the liquid metal alloy thermal switch according to claim 1, wherein: and a heat insulation material layer or vacuum pumping is filled between the outer aluminum plate (1) and the inner aluminum plate (2).

4. The insulation board based on the liquid metal alloy thermal switch according to claim 1, wherein: the normal-temperature liquid metal alloy (7) is amalgam, gallium-indium alloy, gallium-indium-zinc alloy or gallium-indium-tin alloy.