Membrane assembly formed by combining graphene carbon heat-conducting sheet and reversible drying agent membrane and used for demisting automobile lamp and application of membrane assembly

Abstract

The invention discloses a graphene carbon heat-conducting fin and reversible desiccant membrane combined membrane assembly for automobile lamp demisting and application thereof.The graphene carbon heat-conducting fin layer serves as a base layer to be arranged on the inner wall of an automobile lamp shell and comprises a heat absorption area and a heat conduction area, the heat absorption area is arranged towards a heating element in an automobile lamp and used for absorbing infrared heat, and the reversible desiccant membrane is arranged in the heat conduction area; the heat conduction area is formed by extending from the heat absorption area to the easily fogging cold area, and is used for exporting heat for demisting; and the reversible drying agent membrane layer is arranged in the heat conduction area and absorbs heat energy and temperature transmitted by the graphene carbon heat conduction sheet layer to realize membrane micro-moisture desorption drying. The membrane assembly is pasted on the inner walls of flat and long and narrow strip type vehicle lamp shells of split type headlamps, through type headlamps and light sword type headlamps through double-sided pressure-sensitive films. By applying the automobile lamp, heat generated by electrical elements in the automobile lamp is utilized, moisture absorption and desorption circulation of the reversible drying agent diaphragm is achieved, the fogging problem of a novel flat and long and narrow belt type automobile lamp is effectively solved, and the automobile lamp has the advantages of being simple in structure, low in cost and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamp defogging, and in particular to a membrane assembly composed of a graphene carbon heat conductive sheet and a reversible desiccant membrane for automobile lamp defogging and an application thereof. Background Art

[0002] With the rapid mass production of the new four modernizations of automobiles and new energy vehicle models, automobile OEMs continue to launch avant-garde, fashionable and technologically advanced models to meet the needs of consumers. Car lights are the eyes of the car and the embodiment of the car's agile beauty. Therefore, car lights have also shown a trend of major changes in new appearance and structure. The appearance trend characteristics of the new car light design mainly include the following types - new features of flattening and narrow strips.

[0003] Split headlights: This design separates the daytime running lights from the headlights. The daytime running lights are usually located in the position of traditional headlights, while the headlights are located in the fog lamp position or integrated with the frameless grille. The split headlight design gives people a sense of avant-garde and fashion.

[0004] Through-type headlights: This design makes the headlight group into a long strip, running through the entire front of the car, usually echoing the front face shape, showing a unique style. Through-type headlights not only increase the visual width of the vehicle, but also increase the sense of technology.

[0005] Lightsaber-style headlights: imitating the shape of a lightsaber, the internal light source is LED, and the through-type daytime running lights are combined with different light language combinations to create a strong sense of technology that is unforgettable at first sight.

[0006] The new flat and narrow strip-shaped structural features of split headlights, through-type headlights, and lightsaber-shaped headlights, the temperature difference caused by the internal electrical components of the headlights and the microcirculation of air humidity inside the headlights formed by their own air holes cause fogging and condensation on the cold area surface of the headlights and the narrow strip-shaped inner cavity surface. Traditional headlight defogger methods often cannot solve the condensation problem, which seriously affects the appearance of new car models and the safety hazard of yellowing light caused by fogging. Summary of the invention

[0007] The main technical problem solved by the present invention is to provide a membrane assembly composed of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile headlights and its application, which can eliminate the fogging phenomenon of new flat and narrow strip headlights such as split headlights, through-type headlights, and lightsaber-type headlights during the cyclic use of the headlights in operation and parking.

[0008] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a membrane assembly composed of a graphene carbon heat conductive sheet and a reversible desiccant membrane for defogging automobile lamps, comprising: The graphene carbon heat-conducting sheet layer is arranged as a base layer on the inner wall of the lamp housing, including a heat-absorbing area and a heat-conducting area. The heat-absorbing area is arranged toward the heating element in the lamp to absorb infrared heat, and the heat-conducting area is formed by extending from the heat-absorbing area to the cold area prone to fogging, and conducts heat for defogging; The reversible desiccant membrane layer is arranged in the heat conduction area, absorbing the heat energy and temperature transferred by the graphene carbon heat conduction layer to achieve desorption and drying of micro-water in the membrane; The reversible desiccant membrane layer includes a supporting skeleton layer, a functional layer and an active filler. The functional layer is compounded on the surface of the supporting skeleton layer, and the active filler is embedded in the supporting skeleton layer. The reversible desiccant membrane layer mainly includes an expanded polytetrafluoroethylene membrane with a microporous structure and a desiccant slurry. The desiccant slurry is coated on the expanded polytetrafluoroethylene membrane by adopting a high-precision surface controllable coating composite technology. The expanded polytetrafluoroethylene membrane is the supporting skeleton layer, and the desiccant slurry forms a functional layer on the surface of the expanded polytetrafluoroethylene membrane and is embedded in the microporous structure as an active filler.

[0009] In a preferred embodiment of the present invention, an ePTFE expanded polytetrafluoroethylene breathable membrane layer is encapsulated on the surface of the reversible desiccant membrane layer.

[0010] In a preferred embodiment of the present invention, the package includes a single-sided covered cover package, one side surface of the reversible desiccant membrane layer is connected to the graphene carbon thermal conductive layer, and the remaining surface is compositely connected to the ePTFE expanded polytetrafluoroethylene breathable membrane layer.

[0011] In a preferred embodiment of the present invention, one side surface of the reversible desiccant film layer is connected to the graphene carbon thermal conductive sheet layer via a double-sided pressure-sensitive adhesive.

[0012] In a preferred embodiment of the present invention, the packaging includes a wrap-type packaging, in which the ePTFE expanded polytetrafluoroethylene breathable membrane layer is wrapped on the entire surface of the reversible desiccant membrane layer, and the reversible desiccant membrane layer is connected to the graphene carbon thermal conductive sheet layer through the ePTFE expanded polytetrafluoroethylene breathable membrane layer.

[0013] In a preferred embodiment of the present invention, the ePTFE expanded polytetrafluoroethylene breathable membrane layer is connected to the graphene carbon thermal conductive sheet layer through a double-sided pressure-sensitive adhesive sheet.

[0014] In a preferred embodiment of the present invention, the thickness of the membrane assembly is 0 to 3000 μm.

[0015] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide an application of a membrane assembly composed of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile lights, characterized in that the membrane assembly is adhered to the inner wall of the flattened and narrow strip-type headlight shell of split headlights, through-type headlights, and lightsaber-type headlights with a double-sided pressure-sensitive adhesive.

[0016] In a preferred embodiment of the present invention, the membrane component is also used in the tiny space of smart helmet displays, monitoring probes, image detection, and laser radar detection sensors.

[0017] In a preferred embodiment of the present invention, the membrane assembly is combined with a CMD condensation controller and applied in a vehicle lamp housing.

[0018] The beneficial effects of the present invention are as follows: the moisture absorption rate of the membrane assembly of the present invention can reach more than 140% of its own weight under the conditions of 40°C and 90% RH; in the saturated state, it can desorb more than 130% in a 35°C environment, has long-term reversible moisture absorption and drying characteristics, and can be used in an adsorption and desorption cycle; the operating temperature is between -60°C and 120°C, and has excellent weather resistance and temperature resistance.

[0019] By applying the present invention, the heat generated by the internal electrical components of the car lamp is utilized to realize the moisture absorption and desorption cycle of the reversible desiccant film, which effectively solves the fogging problem of new flat and narrow strip type car lamps, and has the advantages of simple structure, low cost, and significant defogging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 It is a structural schematic diagram of a preferred embodiment of a membrane assembly of a graphene carbon heat conductive sheet for automobile lamp defogging of the present invention combined with a reversible desiccant membrane; Figure 2 It is a structural schematic diagram of another preferred embodiment of a membrane assembly of a combination of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile lamps of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] 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 invention claimed for protection, 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.

[0023] 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.

[0024] In the description of the present invention, it should be noted that the terms "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, which is only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] See also Figure 1 , Embodiment 1 of the present invention includes: A membrane assembly composed of a graphene carbon heat conductive sheet and a reversible desiccant membrane for defogging automobile lamps, comprising: The graphene carbon thermal conductive sheet layer 1 is provided as a base layer on the inner wall of the lamp housing 2, and includes a heat absorption area and a heat conduction area. The heat absorption area is arranged toward the heating element 3 in the lamp to absorb infrared heat, and the heat conduction area is formed by extending from the heat absorption area to the cold area prone to fogging, and the heat is conducted out for defogging. The graphene carbon thermal conductive sheet used in the present invention has excellent thermal conductivity, is thin and soft, and the specific parameters are shown in the following table: The reversible desiccant film layer 4 is arranged in the heat conduction area, and absorbs the heat energy and temperature transferred by the graphene carbon heat conduction film layer 1 to achieve desorption and drying of micro-water in the film.

[0028] The working principle is: the heat energy and temperature generated by electrical appliances such as car lights are transferred to the reversible desiccant membrane through the graphene carbon thermal conductive sheet, so that the reversible desiccant membrane that has absorbed moisture desorbs trace moisture. In this way, the reversible desiccant membrane is in a dry state and has the ability to absorb moisture again.

[0029] The reversible desiccant membrane layer 4 includes a support skeleton layer, a functional layer and an active filler, wherein the functional layer is composited on the surface of the support skeleton layer, and the active filler is embedded in the support skeleton layer; The reversible desiccant membrane mainly includes an expanded polytetrafluoroethylene membrane with a microporous structure and a desiccant slurry. The desiccant slurry is coated on the expanded polytetrafluoroethylene membrane by adopting a high-precision surface controllable coating composite technology. The expanded polytetrafluoroethylene membrane is a supporting skeleton layer, and the desiccant slurry forms a functional layer on the surface of the expanded polytetrafluoroethylene membrane and is embedded in the microporous structure as an active filler.

[0030] The reversible desiccant film of the present invention can achieve a moisture absorption rate of more than 140% of its own weight under the conditions of 40°C and 90%RH; in the saturated state, it can desorb more than 130% in a 35°C environment, has long-term reversible moisture absorption and drying characteristics, and can be used in an adsorption-desorption cycle; the operating temperature is between -60°C and 120°C, and has excellent weather resistance and temperature resistance.

[0031] An ePTFE expanded polytetrafluoroethylene breathable membrane layer 5 is encapsulated on the surface of the reversible desiccant membrane layer 4 .

[0032] The micropore size of ePTFE expanded polytetrafluoroethylene breathable membrane is 0.1~30μm, and there are hundreds of millions of irregular staggered and crossed three-dimensional microporous breathable gaps per square centimeter. The material has a large number of micropores that are interconnected and visible from the surface to the inside. Figure 1 As shown, it has certain air permeability and moisture permeability.

[0033] The package is a cover-type package with single-side covering, one side surface of the reversible desiccant membrane layer 4 is connected to the graphene carbon heat conductive sheet layer 1, and the other surface is compositely connected to the ePTFE expanded polytetrafluoroethylene breathable membrane layer 5.

[0034] One side surface of the reversible desiccant film layer 4 is connected to the graphene carbon thermal conductive sheet layer 1 via a double-sided pressure-sensitive adhesive 6 .

[0035] The specific preparation method of the membrane module of the present invention comprises the following steps: (1) Prepare materials, including: reversible desiccant membrane, graphene carbon thermal conductive sheet, double-sided pressure-sensitive adhesive sheet and ePTFE expanded polytetrafluoroethylene membrane; (2) Die-cutting the above materials to produce reversible desiccant membranes, graphene carbon thermal conductive sheets and double-sided pressure-sensitive adhesive sheets of required sizes; (3) Using a pressure-sensitive adhesive patch to bond the reversible desiccant film to the graphene carbon thermal conductive sheet; (4) Using ePTFE expanded polytetrafluoroethylene membrane to cover and encapsulate the reversible desiccant membrane; (5) bonding a pressure-sensitive adhesive strip with release paper to the back of the graphene carbon thermal conductive sheet; (6) Spraying code on the packaging surface of the ePTFE expanded polytetrafluoroethylene membrane; (7) Vacuum packing the encapsulated parts; (8) Inspect the packaged parts and store them in warehouse after passing the inspection.

[0036] See also Figure 2 , Embodiment 2 of the present invention includes: A membrane assembly composed of a graphene carbon heat conductive sheet and a reversible desiccant membrane for defogging automobile lamps, comprising: The graphene carbon thermal conductive sheet layer 1 is provided as a base layer on the inner wall of the lamp housing 2, and includes a heat absorption area and a heat conduction area. The heat absorption area is arranged toward the heating element 3 in the lamp to absorb infrared heat, and the heat conduction area is formed by extending from the heat absorption area to the cold area prone to fogging, and the heat is conducted out for defogging. The graphene carbon thermal conductive sheet used in the present invention has excellent thermal conductivity, is thin and soft, and the specific parameters are shown in the following table: The reversible desiccant film layer 4 is arranged in the heat conduction area, and absorbs the heat energy and temperature transferred by the graphene carbon heat conduction film layer 1 to achieve desorption and drying of micro-water in the film.

[0037] The working principle is: the heat energy and temperature generated by electrical appliances such as car lights are transferred to the reversible desiccant membrane through the graphene carbon thermal conductive sheet, so that the reversible desiccant membrane that has absorbed moisture desorbs trace moisture. In this way, the reversible desiccant membrane is in a dry state and has the ability to absorb moisture again.

[0038] The reversible desiccant membrane layer 4 includes a support skeleton layer, a functional layer and an active filler, wherein the functional layer is composited on the surface of the support skeleton layer, and the active filler is embedded in the support skeleton layer; The reversible desiccant membrane mainly includes an expanded polytetrafluoroethylene membrane with a microporous structure and a desiccant slurry. The desiccant slurry is coated on the expanded polytetrafluoroethylene membrane by adopting a high-precision surface controllable coating composite technology. The expanded polytetrafluoroethylene membrane is a supporting skeleton layer, and the desiccant slurry forms a functional layer on the surface of the expanded polytetrafluoroethylene membrane and is embedded in the microporous structure as an active filler.

[0039] The reversible desiccant film of the present invention can achieve a moisture absorption rate of more than 140% of its own weight under the conditions of 40°C and 90%RH; in the saturated state, it can desorb more than 130% in a 35°C environment, has long-term reversible moisture absorption and drying characteristics, and can be used in an adsorption-desorption cycle; the operating temperature is between -60°C and 120°C, and has excellent weather resistance and temperature resistance.

[0040] An ePTFE expanded polytetrafluoroethylene breathable membrane layer 5 is encapsulated on the surface of the reversible desiccant membrane layer 4 .

[0041] The micropore size of ePTFE expanded polytetrafluoroethylene breathable membrane is 0.1~30μm, and there are hundreds of millions of irregular staggered and crossed three-dimensional microporous breathable gaps per square centimeter. The material has a large number of micropores that are interconnected and visible from the surface to the inside. Figure 1 As shown, it has certain air permeability and moisture permeability.

[0042] The packaging is a wrapping packaging, in which the ePTFE expanded polytetrafluoroethylene breathable membrane layer 5 is wrapped on the entire surface of the reversible desiccant membrane layer 4, and the reversible desiccant membrane layer 4 is connected to the graphene carbon thermal conductive sheet layer 1 through the ePTFE expanded polytetrafluoroethylene breathable membrane layer 5.

[0043] The ePTFE expanded polytetrafluoroethylene breathable membrane layer 5 is connected to the graphene carbon thermal conductive sheet layer 1 through a double-sided pressure-sensitive adhesive film 6 .

[0044] The specific preparation method of the membrane module of the present invention comprises the following steps: (1) Prepare materials, including: reversible desiccant membrane, graphene carbon thermal conductive sheet, double-sided pressure-sensitive adhesive sheet and ePTFE expanded polytetrafluoroethylene membrane; (2) Die-cutting the above materials to produce reversible desiccant membranes, graphene carbon thermal conductive sheets and double-sided pressure-sensitive adhesive sheets of required sizes; (4) Using ePTFE expanded polytetrafluoroethylene membrane to encapsulate the reversible desiccant membrane; (3) Using a pressure-sensitive adhesive patch to bond the ePTFE expanded polytetrafluoroethylene membrane to the graphene carbon thermal conductive sheet; (5) bonding a pressure-sensitive adhesive strip with release paper to the back of the graphene carbon thermal conductive sheet; (6) Spraying code on the packaging surface of the ePTFE expanded polytetrafluoroethylene membrane; (7) Vacuum packing the encapsulated parts; (8) Inspect the packaged parts and store them in warehouse after passing the inspection.

[0045] The thickness of the membrane assembly of Example 1-2 is 0~3000 μm.

[0046] An application of a membrane assembly composed of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile headlights, wherein the membrane assembly is adhered to the inner wall of a flat and narrow strip-shaped headlight housing of a split headlight, a through-type headlight, or a lightsaber-type headlight using a double-sided pressure-sensitive adhesive film 6.

[0047] The reversible desiccant membrane absorbs the micro-moisture in the cold zone air, reduces the humidity in the new flat and narrow strip housing, and eliminates the fogging phenomenon. As the headlights work, the heat energy and temperature absorbed by the graphene carbon thermal conductive sheet are quickly transferred to the reversible desiccant membrane. The reversible desiccant membrane begins to desorb the hygroscopic micro-moisture under the heat energy and temperature provided by the graphene carbon thermal conductive sheet. The desorbed micro-moisture is taken away by the micro-circulation airflow in the headlights. On the one hand, it reduces the humidity in the new flat and narrow strip housing, thereby eliminating the fogging phenomenon. On the other hand, the reversible desiccant membrane restores the ability to continue drying and absorbing moisture. It can eliminate the fogging phenomenon of flat and narrow strip headlights such as split headlights, through-type headlights, and lightsaber-type headlights under the cyclic use of the headlights working and parking.

[0048] The membrane component is also used in the tiny spaces of smart helmet displays, monitoring probes, image detection, and lidar detection sensors to eliminate fogging in the tiny spaces, allowing their electrical properties to be effectively utilized and work more reliably.

[0049] The membrane assembly is combined with the CMD condensation controller and applied in the lamp housing to achieve a better defogging effect.

[0050] The film assembly of the graphene carbon heat conductive sheet and the reversible desiccant film for automobile lamp defogging of the present invention has an extremely thin thickness and can adapt to the narrow internal space of new flat and narrow strip-type lamps such as split headlights, through-type headlights, and lightsaber-type headlights. This ultra-thin design significantly shortens the design verification and development cycle of new energy automobile lamps, allowing new lamps to be quickly introduced to the market and meet consumers' demand for fashionable and avant-garde designs.

[0051] The membrane assembly of the present invention is low-cost and can be used in combination with the vehicle lamp breathable membrane assembly and the CMD condensation controller to further improve the defogging effect. This combined application not only reduces the overall cost of the vehicle lamp system, but also significantly improves the defogging performance, ensuring that the vehicle lamp can maintain good light transmittance and clarity under various environmental conditions.

[0052] The membrane assembly of the present invention effectively reduces the humidity inside the headlight and eliminates the fogging phenomenon, thereby ensuring the stable performance of the headlight. At the same time, its ultra-thin and transparent characteristics will not affect the appearance design of the headlight, but can enhance the beauty of the headlight, improve the attractiveness of the product, and meet consumers' pursuit of smart technology.

[0053] The membrane assembly of the present invention does not need to change the internal structure and layout of the already designed and mass-produced new energy vehicle lamps, and can be directly applied to the existing lamp system. This design greatly shortens the development and installation cycle of new lamps, saving a lot of time and cost for customers and consumers, while simplifying the engineering application process and improving application efficiency.

[0054] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A membrane assembly composed of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile lamps, characterized in that: include: The graphene carbon heat-conducting sheet layer is arranged as a base layer on the inner wall of the lamp housing, including a heat-absorbing area and a heat-conducting area. The heat-absorbing area is arranged toward the heating element in the lamp to absorb infrared heat, and the heat-conducting area is formed by extending from the heat-absorbing area to the cold area prone to fogging, and conducts heat for defogging; The reversible desiccant membrane layer is arranged in the heat conduction area, absorbing the heat energy and temperature transferred by the graphene carbon heat conduction layer to achieve desorption and drying of micro-water in the membrane; The reversible desiccant membrane layer includes a support skeleton layer, a functional layer and an active filler, wherein the functional layer is compounded on the surface of the support skeleton layer, and the active filler is embedded in the support skeleton layer; The reversible desiccant membrane layer mainly includes an expanded polytetrafluoroethylene membrane with a microporous structure and a desiccant slurry. The desiccant slurry is coated on the expanded polytetrafluoroethylene membrane by adopting a high-precision surface controllable coating composite technology. The expanded polytetrafluoroethylene membrane is a supporting skeleton layer, and the desiccant slurry forms a functional layer on the surface of the expanded polytetrafluoroethylene membrane and is embedded in the microporous structure as an active filler.

2. The membrane assembly of the combination of the graphene carbon thermal conductive sheet and the reversible desiccant membrane for automobile lamp defogging according to claim 1 is characterized in that: An ePTFE expanded polytetrafluoroethylene breathable membrane layer is encapsulated on the surface of the reversible desiccant membrane layer.

3. The membrane assembly of the combination of the graphene carbon thermal conductive sheet for automobile lamp defogging and the reversible desiccant membrane according to claim 2, characterized in that: The package includes a cover-type package with single-side covering, one side surface of the reversible desiccant membrane layer is connected to the graphene carbon heat conductive layer, and the other surface is compositely connected to the ePTFE expanded polytetrafluoroethylene breathable membrane layer.

4. The membrane assembly of the combination of the graphene carbon thermal conductive sheet and the reversible desiccant membrane for automobile lamp defogging according to claim 3 is characterized in that: One side surface of the reversible desiccant film layer is connected to the graphene carbon heat conductive sheet layer through a double-sided pressure-sensitive adhesive sheet.

5. The membrane assembly of the combination of the graphene carbon thermal conductive sheet and the reversible desiccant membrane for automobile lamp defogging according to claim 2, characterized in that: The packaging includes a wrapping packaging, in which an ePTFE expanded polytetrafluoroethylene breathable membrane layer is wrapped on the entire surface of the reversible desiccant membrane layer, and the reversible desiccant membrane layer is connected to the graphene carbon thermal conductive sheet layer through the ePTFE expanded polytetrafluoroethylene breathable membrane layer.

6. The membrane assembly of the combination of the graphene carbon heat conductive sheet and the reversible desiccant membrane for automobile lamp defogging according to claim 5, characterized in that: The ePTFE expanded polytetrafluoroethylene breathable membrane layer is connected to the graphene carbon thermal conductive sheet layer through a double-sided pressure-sensitive adhesive sheet.

7. The membrane assembly of the combination of the graphene carbon heat conductive sheet and the reversible desiccant membrane for automobile lamp defogging according to claim 1, characterized in that: The thickness of the membrane component is 0~3000 μm.

8. Application of a membrane assembly composed of a graphene carbon thermal conductive sheet and a reversible desiccant membrane for defogging automobile lamps, characterized in that: The membrane assembly described in any one of claims 1 to 7 is adhered to the inner wall of the flattened and narrow strip-shaped lamp housing of the split headlight, through-type headlight, and lightsaber-type headlight using a double-sided pressure-sensitive adhesive.

9. The application of the membrane assembly of the graphene carbon heat conductive sheet for automobile lamp defogging and the reversible desiccant membrane according to claim 8, characterized in that: The membrane component is also used in the tiny spaces of smart helmet displays, monitoring probes, image detection, and lidar detection sensors.

10. The application of the membrane assembly of the graphene carbon heat conductive sheet for automobile lamp defogging and the reversible desiccant membrane according to claim 8, characterized in that: The membrane component is combined with a CMD condensation controller and applied in a vehicle lamp housing.

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