Heat conduction-cold conduction composite structure and air conditioning garment

Abstract

The utility model relates to the field of clothes, in particular to a heat conduction-cold conduction composite structure and an air conditioning suit, the heat conduction-cold conduction composite structure comprises a contact layer and a cold and heat source interface, the contact layer is sequentially provided with a heat transfer connection layer, a graphene cold conduction-heat conduction layer, a heat insulation connection layer, a heat insulation layer and a protection layer; and the cold and heat source interface penetrates through the heat insulation connecting layer, the heat insulation layer and the protection layer and is connected with the graphene cold-heat conduction layer. The contact layer ensures wearing comfort and prevents frostbite or scald; the heat transfer connection layer realizes connection and heat conduction between the contact layer and the graphene cold-heat conduction layer; the graphene cold conduction-heat conduction layer rapidly homogenizes temperature distribution on the back face of the cold and heat source and cold and heat source contact face. The heat insulation connecting layer realizes connection between the graphene cold-heat conduction layer and the heat insulation layer; the heat insulation layer realizes heat preservation; the protection layer is used for protecting the whole structure; the cold and heat source connector is connected with a cold source or a heat source, and the structure solves the problem that an existing heating and refrigerating mode is low in heat exchange efficiency and poor in heat exchange uniformity, so that comfort is poor.

Description

Technical Field

[0001] The utility model relates to the field of clothing, in particular to a heat-conducting and cooling-conducting composite structure and air-conditioning clothing. Background Art

[0002] The process of conducting cold and heat is essentially the transfer of heat. The second law of thermodynamics states that temperature can only be transferred spontaneously from a higher temperature object to a lower temperature object. The heat and cold that people feel is essentially the heat exchange between the temperature sensing system in the human skin and the object it touches. If the temperature of the object in contact is higher than the temperature of the skin, the skin will feel hot. Conversely, if the heat of the skin is lost to the object, the person will feel cold.

[0003] Air-conditioning clothing is a high-tech wearable device that can regulate the wearer's perceived temperature. It is of great significance for people working or moving in extreme temperature environments. It helps humans adapt to high-intensity activities or special working environments by maintaining the core temperature of the human body within a safe range (above 35°C and below 40°C), and can prevent health problems caused by overheating or overcooling. This type of clothing has a wide range of applications in many fields such as medicine, industry, sports and military, such as helping patients control their body temperature, protecting workers from extreme environmental damage, and regulating the body temperature of athletes and soldiers.

[0004] At present, the commonly used cooling methods for air-conditioning clothes include air cooling, gel cooling, circulating liquid cooling, phase change material cooling and semiconductor cooling. Common heating methods include electric heating, phase change material heating, chemical heating and semiconductor heating. These cooling and heating methods generally have problems such as low heat exchange efficiency and poor cooling and heating uniformity, resulting in poor comfort. Utility Model Content

[0005] In view of the problem of poor comfort caused by low heat exchange efficiency and poor heat exchange uniformity in the heating and cooling methods in the prior art, the utility model provides a heat-conducting and cooling composite structure and air-conditioning clothing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a heat-conducting and cold-conducting composite structure, comprising a contact layer and a cold and hot source interface, wherein a heat transfer connection layer, a graphene cold-heat conducting layer, a heat-insulating connection layer, a heat-insulating layer and a protective layer are sequentially arranged on the contact layer; the cold and hot source interface penetrates the heat-insulating connection layer, the heat-insulating layer and the protective layer and is connected to the graphene cold-heat conducting layer.

[0008] Preferably, the graphene heat-cooling layer has a thickness of 300 to 1000 μm.

[0009] Preferably, the contact layer is made of polyester fabric or blended fabric.

[0010] Preferably, the heat transfer connection layer is a heat conductive adhesive.

[0011] Preferably, the graphene heat-cooling layer is made of a graphitized expansion film.

[0012] Preferably, the thermal insulation connection layer is a thermal insulation double-sided adhesive.

[0013] Preferably, the thermal insulation layer is made of silicon aerogel felt, polyurethane foam plastic or glass fiber wool board.

[0014] Preferably, the material of the protective layer is a polyethylene release film, a polyester release film, a polypropylene release film, polytetrafluoroethylene, polyphenylene ether or a non-woven fabric film.

[0015] Preferably, the thickness of the thermal insulation layer is 300-2000 μm.

[0016] An air-conditioning garment comprises the above-mentioned heat-conducting and cooling-conducting composite structure.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a heat-conducting and cold-conducting composite structure, including a contact layer and a cold and hot source interface, wherein the contact layer is sequentially provided with a heat transfer connection layer, a graphene cold-heat conducting layer, a heat insulation connection layer, a heat insulation layer and a protective layer; the cold and hot source interface runs through the heat insulation connection layer, the heat insulation layer and the protective layer and is connected to the graphene cold-heat conducting layer. By providing the contact layer, it ensures that the wearer is comfortable while preventing frostbite or scalds on the skin during heat transfer; the provision of the heat transfer connection layer realizes the connection and heat conduction between the contact layer and the graphene cold-heat conducting layer; the provision of the graphene cold-heat conducting layer utilizes the high thermal conductivity, low density, light weight and good toughness of graphite to quickly and evenly distribute the temperature on the back of the contact surface between the cold and hot sources and the cold and hot sources, eliminates local overcooling and overheating problems, realizes uniform cooling and heating over a large area, and is more comfortable to wear; the provision of the heat insulation connection layer realizes the graphene cold-heat conducting layer and the heat insulation layer The setting of the heat insulation layer can achieve the effect of heat preservation to reduce the loss of heat or cold, which is beneficial to prevent the ambient temperature on the side in contact with the graphene cold-heat conducting layer from offsetting the temperature of the graphene cold-heat conducting layer, so that the energy of the cold and hot sources can be efficiently utilized, and is also beneficial to the rise and fall of the temperature on the other side of the graphene cold-heat conducting layer; the setting of the protective layer can protect the entire structure and improve the stability of the overall structure; the setting of the cold and hot source interface can connect the cold source or the hot source to the graphene cold-heat conducting layer to provide cooling or heating for it to maintain the user's body sensation stable within a comfortable range.

[0019] The graphene heat-cooling layer has a thickness of 300 to 1000 μm, which ensures effective heat transfer while ensuring wearing comfort.

[0020] The contact layer is made of polyester fabric or blended fabric to ensure the comfort of the contact surface and prevent burns or frostbite.

[0021] The heat transfer connection layer is a heat conductive adhesive, which realizes the connection and heat conduction between the contact layer and the graphene cold-heat conductive layer.

[0022] The graphene heat-cooling layer is made of a graphitized expansion film, which has high cohesion and high heat flux, and is beneficial to the uniformity of heat exchange.

[0023] The heat-insulating connection layer is a heat-insulating double-sided adhesive, which realizes the connection between the graphene cold-heat conducting layer and the heat-insulating layer while achieving heat insulation.

[0024] The material of the heat insulation layer is silicon aerogel felt, polyurethane foam plastic or glass fiber wool board, which has a wide source of raw materials, low cost and good heat insulation performance.

[0025] The material of the protective layer is polyethylene release film, polyester release film, polypropylene release film, polytetrafluoroethylene, polyphenylene ether or non-woven fabric film, and the raw material source is wide and the cost is low.

[0026] The thickness of the thermal insulation layer is 300 to 2000 μm, which ensures effective thermal insulation performance while improving wearing comfort.

[0027] The utility model also provides an air-conditioning garment, comprising the above-mentioned heat-conducting-cooling-conducting composite structure. The air-conditioning garment can adjust the temperature faster and more efficiently, has good uniformity, and is more comfortable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a heat-conducting and cooling-conducting composite structure of the present invention.

[0029] Figure 2 It is a cross-sectional schematic diagram of a heat-conducting and cooling-conducting composite structure of the utility model.

[0030] Among them, 1-contact layer, 2-heat transfer connection layer, 3-graphene cold-heat conduction layer, 4-thermal insulation connection layer, 5-thermal insulation layer, 6-protective layer, 7-cold and heat source interface, 8-heat conduction-cold conduction composite structure matrix. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0038] See also Figure 1 and Figure 2 The utility model discloses a heat-conducting and cold-conducting composite structure, comprising a contact layer 1 and a cold-heat source interface 7;

[0039] The contact layer 1 is provided with a heat transfer connection layer 2, a graphene cold-heat conduction layer 3, a heat insulation connection layer 4, a heat insulation layer 5 and a protective layer 6 in sequence; the contact layer 1, the heat transfer connection layer 2, the graphene cold-heat conduction layer 3, the heat insulation connection layer 4, the heat insulation layer 5 and the protective layer 6 together constitute a heat-conducting-cold-conducting composite structure matrix 8;

[0040] The contact layer 1 is made of polyester fabric or blended fabric;

[0041] The heat transfer connection layer 2 is a heat conductive adhesive, which is a heat conductive silicone grease or a heat conductive gasket, and the thermal conductivity of the heat conductive adhesive is ≥8W (m·K); the area of ​​the contact layer 1 is larger than the area of ​​the graphene cold-heat conductive layer 3.

[0042] The material of the graphene cold-heat conducting layer 3 is a graphitized expansion film, the thickness of the graphitized expansion film is 300-1000 μm, preferably 300-500 μm, and the preparation method is: using a flat press at a pressure of 1000-1800 t, preferably 1200-1500 t, to stack multiple layers of graphitized expansion film and then calender to obtain a graphene heat sink with high cohesion and high heat flux; the cohesion of the graphene heat sink is greater than 30gf / 25mm, preferably greater than 50gf / 25mm, and the size of the graphene expansion film is a rectangle of 300-400mm, preferably, the size of the graphene expansion film is 300×300mm.

[0043] The thermal insulation connection layer 4 is a thermal insulation double-sided adhesive, which is heat-resistant and cold-resistant double-sided adhesive, such as 3M double-sided adhesive, such as 467MP, 9471LE or 93015LE, 400 series acrylic adhesive, such as 465, 9457 or 924; 420 series adhesive; 300MP series adhesive, such as 6035PC, 99786 or 9775WL.

[0044] The material of the heat insulation layer 5 is silicon-based aerogel felt, polyurethane foam plastic or glass fiber wool board, and the thickness is 300-2000 μm. Preferably, the material of the heat insulation layer 5 is silicon-based aerogel felt or polyurethane foam plastic.

[0045] The material of the protective layer 6 is a polyethylene release film, a polyester release film, a polypropylene release film, polytetrafluoroethylene, polyphenylene ether or a non-woven fabric film.

[0046] The cold and hot source interface 7 passes through the heat insulating connection layer 4 , the heat insulating layer 5 and the protective layer 6 and is connected to the graphene cold and hot conducting layer 3 .

[0047] The preparation method of the heat-conducting and cooling-conducting composite structure is as follows:

[0048] The graphite expansion film is laminated and calendered by using a flat press to obtain a graphene heat sink with high cohesion and high heat flux, thereby obtaining a graphene heat-conducting layer 3;

[0049] According to the contact area between the cold / heat source and the graphene heat sink, holes are cut into the thermal insulation layer 5 , and the graphene cold / heat conductive layer 3 and the thermal insulation layer 5 are bonded using the thermal insulation connecting layer 4 .

[0050] The graphene heat-cooling layer 3 is bonded to the contact layer 1 through the heat transfer connection layer 2 to obtain a prefabricated composite structure layer; the area of ​​the contact layer 1 is larger than the area of ​​the graphene heat-cooling layer 3;

[0051] The prefabricated composite structure layer is tightly wrapped with a protective layer 6 to expose the contact layer 1 and part of the graphene cold-heat conductive layer 3. The exposed graphene cold-heat conductive layer 3 is connected to the cold-heat source interface 7, and the cold-heat source interface 7 is connected to a cold source or a hot source.

[0052] When in use, the cold and hot source interface 7 is connected to a cold source or a hot source, and the heat or cold is transferred to the graphene cold-heat conductive layer 3. The graphene cold-heat conductive layer 3 evenly distributes the heat or cold on the surface for heat exchange, and the thermal insulation layer 5 prevents the dissipation of cold and heat, thereby achieving the purpose of temperature regulation.

[0053] Example 1

[0054] The utility model discloses a heat-conducting and cooling-conducting composite structure, comprising a contact layer 1 and a heat-cold source interface 7; the contact layer 1 is sequentially provided with a heat transfer connection layer 2, a graphene heat-cold-conducting layer 3, a heat-insulating connection layer 4, a heat-insulating layer 5 and a protective layer 6; the heat-cold-conducting and cooling-conducting interface 7 penetrates the heat-insulating connection layer 4, the heat-insulating layer 5 and the protective layer 6 and is connected to the graphene heat-cold-conducting layer 3. The preparation method is as follows: 6 layers of graphitized expanded graphene films are stacked, and a flat press is used to roll at a pressure of 1500t to obtain a graphene heat sink with a thickness of 300μm, and the graphene heat-cold-conducting layer 3 is obtained by cutting the heat-cold-conducting layer 3 into a size of 30cm×30cm. Take a silicon-based aerogel felt of the same size as the graphene heat-cooling layer 3 and a thickness of 1000 μm, open a 4 cm × 4 cm gap in the middle, evenly apply 400 series acrylic adhesive 426 on one side of the silicon-based aerogel felt, and tightly bond the silicon-based aerogel felt to the graphene heat-cooling layer 3. Evenly apply thermally conductive silicone on the other side of the graphene heat-cooling layer 3, and bond a piece of polyester cloth of size 33 cm × 33 cm. Take a piece of PET film of size 35 cm × 35 cm and thickness of 75 μm to tightly wrap the silicon-based aerogel felt, leaving an opening to form a heat-cooling source interface 7, bond the edge to the edge of the polyester cloth, and cut off the excess PET film to obtain a heat-cooling composite structure.

[0055] Example 2

[0056] The utility model discloses a heat-conducting-cold-conducting composite structure, comprising a contact layer 1 and a heat-cold source interface 7; a heat transfer connection layer 2, a graphene heat-cold-conducting layer 3, a heat-insulating connection layer 4, a heat-insulating layer 5 and a protective layer 6 are sequentially arranged on the contact layer 1; the heat-cold source interface 7 penetrates the heat-insulating connection layer 4, the heat-insulating layer 5 and the protective layer 6 and is connected to the graphene heat-cold-conducting layer 3. Ten layers of graphitized expanded graphene films were stacked, and rolled with a flat press at a pressure of 1500t to obtain a graphene heat sink with a thickness of 500μm, which was cut into a size of 24cm×24cm to obtain a graphene heat conduction layer 3; a silicon-based aerogel felt with a thickness of 1500μm and the same size as the graphene heat conduction layer 3 was taken, a 4cm×4cm gap was opened in the middle, and 3M thin double-sided tape 467MP was evenly coated on one side of the silicon-based aerogel felt to tightly bond the silicon-based aerogel felt to the graphene heat conduction layer 3. Thermal conductive silica gel was evenly coated on the other side of the graphene heat conduction layer 3, and a piece of cotton-polyurethane blended material with a size of 26cm×26cm was bonded. Take a piece of PET film with a size of 28cm×28cm and a thickness of 75μm to tightly wrap the silicone aerogel felt, leaving an opening, bond the edge to the edge of the polyester fabric, cut off the excess PET film, and obtain a heat-conducting and cooling-conducting composite structure.

[0057] The utility model also provides an air-conditioning garment, comprising the above-mentioned heat-conducting and cooling-conducting composite structure. The air-conditioning garment can adjust the temperature faster and more efficiently, has good uniformity, and is more comfortable to wear.

[0058] In summary, the utility model provides a heat-conducting and cold-conducting composite structure and air-conditioning clothing, which are jointly arranged with a contact layer 1, a graphene cold-heat conducting layer 3, a heat insulating layer 5, a protective layer 6 and a cold and hot source interface 7, and utilize the high thermal conductivity, low density, light weight and good toughness of graphite to quickly even out the temperature distribution on the back of the contact surface between the cold and hot sources and the cold and hot sources, eliminate local overcooling and overheating problems, and achieve uniform cooling and heating over a large area. The utility model maximizes the uniform temperature conduction performance of the graphene cold-heat conducting layer 3 from the perspectives of thermal conductivity, heat equalization effect, and reduction of heat offset, so as to meet the needs of various application scenarios.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.

Claims

1. A heat-conducting and cooling-conducting composite structure, characterized in that: The invention comprises a contact layer (1) and a cold and hot source interface (7), wherein a heat transfer connection layer (2), a graphene cold and hot conduction layer (3), a heat insulation connection layer (4), a heat insulation layer (5) and a protective layer (6) are sequentially arranged on the contact layer (1); and the cold and hot source interface (7) penetrates the heat insulation connection layer (4), the heat insulation layer (5) and the protective layer (6) and is connected to the graphene cold and hot conduction layer (3).

2. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The graphene heat-cooling layer (3) has a thickness of 300 to 1000 μm.

3. The heat-conducting and cooling-conducting composite structure according to claim 2, characterized in that: The contact layer (1) is made of polyester fabric or blended fabric.

4. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The heat transfer connection layer (2) is a heat conductive adhesive.

5. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The material of the graphene heat-cooling layer (3) is a graphitized expansion film.

6. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The heat-insulating connecting layer (4) is a heat-insulating double-sided adhesive.

7. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The material of the heat insulation layer (5) is silicon-based aerogel felt, polyurethane foam plastic or glass fiber wool board.

8. The heat-conducting and cooling-conducting composite structure according to claim 1, characterized in that: The material of the protective layer (6) is a polyethylene release film, a polyester release film, a polypropylene release film, polytetrafluoroethylene, polyphenylene ether or a non-woven fabric film.

9. The heat-conducting and cooling-conducting composite structure according to any one of claims 1 to 8, characterized in that: The thickness of the heat insulation layer (5) is 300-2000 μm.

10. An air-conditioning suit, characterized in that: The heat-conducting-cooling composite structure comprises the heat-conducting-cooling composite structure as described in any one of claims 1 to 9.

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