Cooling fin capable of adjusting temperature

Abstract

The utility model discloses a cool and refreshing cooling sheet capable of adjusting temperature, which belongs to the technical field of cooling pastes, and comprises a temperature adjusting layer, a gel heat conduction cooling layer and a protective layer, the temperature adjusting layer is pasted on the skin surface, the gel heat conduction cooling layer is arranged on the lower side of the temperature adjusting layer, and the protective layer is arranged on the lower side of the gel heat conduction cooling layer. The problems that in the prior art, due to the fact that gel patch type cooling products easily absorb and accumulate heat and the cooling amplitude of cool sense phase change materials is limited, the cooling duration is short, the cooling materials easily fall off in the moving process, and the efficient cooling requirement is difficult to meet are solved. The temperature adjusting layer and the gel heat conduction cooling layer are designed in a heat conduction matching mode, and compared with a single gel layer without a phase-change material, the cooling time efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling patches, and particularly relates to a cool cooling sheet with adjustable temperature. Background Art

[0002] At present, the most common cool cooling products on the market are mainly gel patches (such as cool patches, gel eye patches, etc.) and cool phase change materials. Gel patches are usually composed of a non-woven fabric substrate and a surface-coated polymer hydrogel layer. Its principle is to absorb the body surface heat through water evaporation to achieve the effect of cool cooling.

[0003] However, when the existing gel patch cooling products come into contact with the skin surface, they will absorb and accumulate heat, resulting in an increase in the product temperature, a decrease in the speed of heat exchange with the environment, a short cooling duration, and the gel of the gel patch cooling products mainly adheres to the skin surface by the viscosity of the polymer gel layer. As the water evaporates, the gel will dehydrate and fail, resulting in easy detachment during activities. Although the cool phase change material (PCM) can adjust the contact surface temperature through phase change, the existing materials have a phase change temperature mostly concentrated around 28°C. When used alone, the cooling amplitude is limited and it is difficult to meet the high-efficiency cooling requirements.

[0004] Therefore, how to provide a cool cooling sheet with adjustable temperature to solve the defects existing in the prior art is a technical problem that needs to be urgently solved by those skilled in the art. Content of the Utility Model

[0005] For this reason, the utility model provides a cool cooling sheet with adjustable temperature to solve the problems of short cooling duration, easy detachment during activities, and difficulty in meeting the high-efficiency cooling requirements caused by the easy absorption and accumulation of heat by gel patch cooling products and the limited cooling amplitude of cool phase change materials in the prior art.

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

[0007] The utility model discloses a cool cooling sheet with adjustable temperature, including:

[0008] A temperature adjustment layer, applied to the skin surface;

[0009] A gel heat conduction cooling layer, arranged on the lower side of the temperature adjustment layer;

[0010] A protective layer, arranged on the lower side of the gel heat conduction cooling layer;

[0011] The temperature adjustment layer is a phase change cool feeling material made of phase change microcapsules and a fiber substrate through printing, impregnation or spinning and weaving methods;

[0012] The gel heat conduction cooling layer is a boron nitride gel layer.

[0013] Furthermore, a heat-conducting transition layer is provided between the temperature adjustment layer and the gel heat-conducting cooling layer.

[0014] Furthermore, the heat-conducting transition layer is a PVA layer.

[0015] Furthermore, the material grammage of the temperature adjustment layer is 20 - 400 g / ㎡.

[0016] Furthermore, the thickness of the gel heat-conducting cooling layer is 0.5 - 8 mm.

[0017] Furthermore, the material grammage of the protective layer is 30 - 300 g / ㎡.

[0018] Furthermore, a cooling neckband includes a belt-shaped part made of the temperature-adjustable cooling sheet, with a pointed end provided at one end of the belt-shaped part and a socket matching the pointed end provided at the other end.

[0019] Furthermore, a cooling eye mask includes an eye mask body made of the temperature-adjustable cooling sheet, and ear hooks are respectively connected to both ends of the eye mask body.

[0020] The present utility model has the following advantages:

[0021] By providing a temperature adjustment layer and a gel heat-conducting cooling layer, the present utility model realizes the synergistic effect of multiple temperature adjustments. When the temperature of the contact surface between the product and the skin rises, the phase change microcapsules in the temperature adjustment layer melt and absorb heat. While triggering phase change cooling, the hydrogel in the gel heat-conducting cooling layer simultaneously releases the pre-stored cold energy, and takes away heat through water evaporation, forming triple cooling, and significantly enhancing the cooling effect. By providing a heat-conducting transition layer between the temperature adjustment layer and the gel heat-conducting cooling layer, the continuity of heat conduction is enhanced, the heat conduction performance of the product is improved, and a more lasting cooling effect is provided. The heat conduction matching design of the temperature adjustment layer and the gel heat-conducting cooling layer has a longer cooling time compared with a single gel layer without phase change materials. Using a gel heat-conducting cooling layer made of a boron nitride gel layer enables the heat absorbed by the temperature adjustment layer to be quickly conducted to the surface of the product through the gel heat-conducting cooling layer, improving the heat conduction effect of the gel heat-conducting cooling layer, reducing heat accumulation, and maintaining a constant temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0023] The structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0024] Figure 1 It is a cross-sectional view of the adjustable-temperature cooling sheet provided by the present utility model;

[0025] Figure 2 It is a schematic diagram of the cooling neckband provided by the present utility model;

[0026] Figure 3 It is a schematic diagram of the cooling eye mask provided by the present utility model.

[0027] In the figure: 1 temperature adjustment layer; 2 gel heat-conducting cooling layer; 3 protective layer; 4 heat-conducting transition layer; 6 strip part; 7 pointed end part; 8 socket; 9 eye mask body; 10 ear hook. Specific Embodiments

[0028] The following specific embodiments illustrate the implementation manners of the present utility model. Those familiar with this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0029] Please refer to Figures 1-3 , and now the adjustable-temperature cooling sheet disclosed by the present utility model will be described. The present utility model is composed of 3 parts. As Figure 1 shown, it includes a temperature adjustment layer 1, a gel heat-conducting cooling layer 2, and a protective layer 3. The temperature adjustment layer 1 is applied to the skin surface, the gel heat-conducting cooling layer 2 is arranged on the lower side of the temperature adjustment layer 1, and the protective layer 3 is arranged on the lower side of the gel heat-conducting cooling layer 2: The temperature adjustment layer 1 is a phase-change cooling material made of phase-change microcapsules and fiber substrates through printing, impregnation, or spinning and weaving methods; the interior of the gel heat-conducting cooling layer 2 contains a high heat-conducting network formed by nano-flake boron nitride.

[0030] In this embodiment, the temperature regulation layer 1 belongs to a type of phase change fabric. The temperature regulation layer 1 is a phase change cool feeling material formed by combining phase change microcapsules and a fiber substrate through techniques such as printing, impregnation, or spinning and weaving. The temperature regulation layer 1 can rapidly absorb heat and, in combination with the gel heat conduction and cooling layer 2, continuously and stably provide a cool feeling. The phase change microcapsule is a type of phase change material (PCM - Phase Change Material), which refers to a substance that changes its physical properties with temperature change and can provide latent heat, and is a common phase change material in the prior art. The process of the PCM phase change material changing its physical properties is called the phase change process. At this time, the PCM phase change material will absorb or release a large amount of latent heat and can be used as an energy storage device. When the physical state changes, the temperature of the material itself remains almost unchanged before and after the phase change is complete. Commonly used PCM phase change materials on the market have temperatures such as 25°C, 28°C, 30°C, etc., and the appropriate temperature can be selected according to product requirements. After the contact surface temperature reaches the phase change temperature, the PCM phase change material will undergo a phase state change, absorb the heat of the contact surface, and keep the contact surface temperature constant.

[0031] The gel heat conduction and cooling layer 2 is a boron nitride gel layer, which is made by mixing boron nitride and a gel. Boron nitride is a common material in the prior art, and its microscopic state is sheet-like. In this embodiment, "hexagonal boron nitride" produced by Shanghai Yaotian New Material Technology Co., Ltd. or "hexagonal boron nitride powder lubricant high thermal conductivity BN micron-nano sheet-like boron nitride powder spherical boron nitride powder" produced by AVIC Nano Technology or "high-purity sheet-like hexagonal boron nitride" produced by Yumu (Ningbo) New Material Co., Ltd. can be used.

[0032] The adjustable temperature cooling sheet of the present utility model comprises, from top to bottom, a temperature regulation layer 1, a gel heat conduction and cooling layer 2, and a protective layer 3. The phase change temperature of the temperature regulation layer 1 is set at 25 - 28°C, and it absorbs the heat on the skin surface through solid-liquid phase change and triggers phase change cooling to achieve rapid cooling of the body surface. The gel heat conduction and cooling layer 2 transfers the heat to the outer layer through the high thermal conductivity of nano-sheet-like boron nitride, and at the same time takes away the heat through water evaporation and provides a heat conduction channel. The protective layer 3 ensures breathability and prevents gel leakage. The heat conduction matching design of the temperature regulation layer 1 and the gel heat conduction and cooling layer 2 has a longer cooling time effect compared with a single gel layer without a phase change material. Preferably, the material gram weight of the temperature regulation layer 1 is 20 - 400 g / ㎡. Preferably, the temperature regulation layer 1 can also add effective ingredients such as hyaluronic acid and traditional Chinese medicine extracts to provide more functions for the product.

[0033] The gel heat-conducting and temperature-lowering layer 2 is a three-dimensional network structure formed by cross-linking superabsorbent materials. The superabsorbent materials are composed of one or several of carboxymethyl cellulose and its salts, carbomer, and gelatin. Phase change microcapsules, menthol and other cool-sensation materials can also be added to the gel heat-conducting and temperature-lowering layer 2 to increase the coolness of the colloid. The gel heat-conducting and temperature-lowering layer 2 contains a high heat-conducting network formed by nano-sheet boron nitride. The nano-sheet boron nitride is a heat-conducting material, which can increase the heat-conducting performance of the colloid. Preferably, the thickness of the gel heat-conducting and temperature-lowering layer 2 is 0.5 - 8 mm. Preferably, the content of nano-sheet boron nitride in the gel heat-conducting and temperature-lowering layer 2 is 8 - 15%.

[0034] The main function of the protective layer 3 is to carry and protect the gel heat-conducting and temperature-lowering layer 2 and increase the strength of the gel heat-conducting and temperature-lowering layer 2. Preferably, the grammage of the material of the protective layer 3 is 30 - 300 g / ㎡. The fiber substrates of the protective layer 3 and the temperature-regulating layer 1 can be various materials such as knitted materials, woven materials or non-woven fabrics, and can be made of natural fibers or chemical fibers. The natural fibers include cotton, hemp, pulp, silk, etc. The chemical fiber materials include spandex, polyester, nylon, viscose fiber, acrylic fiber, polyethylene, rayon, triacetate, etc.

[0035] In the present utility model, the side in contact with the skin is the temperature-regulating layer 1. When the temperature-regulating layer 1 contacts the skin, it can change its own shape with the change of the skin surface temperature, so that the temperature of the contact surface between the skin and the product is maintained in a relatively stable state. At the same time, the cross-linked polymer hydrogel in the gel heat-conducting and temperature-lowering layer 2 releases and stores cold, and jointly regulates, avoiding the situation of the decline of the cooling effect and the physical discomfort during the long-term use of a single cooling product. It is particularly suitable for scenarios that need to maintain a cool and moist state for a long time, such as sports protectors, medical cold compress products, etc., and has significant market application value.

[0036] As Figure 1 shown, a heat-conducting transition layer 4 is arranged between the temperature-regulating layer 1 and the gel heat-conducting and temperature-lowering layer 2; preferably, the heat-conducting transition layer 4 is a PVA layer. In this embodiment, the heat-conducting transition layer 4 is made of a PVA aqueous solution containing a phase change material. By setting the heat-conducting transition layer 4, the continuity of heat conduction can be enhanced, the heat-conducting performance of the product can be improved, and a more lasting cooling effect can be provided.

[0037] As Figure 2 shown, a cooling neckband includes a strip portion 6 made of a cool-down sheet with adjustable temperature. One end of the strip portion 6 is provided with a pointed end portion 7, and the other end is provided with a socket 8 that cooperates with the pointed end portion 7. The strip portion 6 made of the cool-down sheet with adjustable temperature fits on the neck, which can bring a continuous cooling effect to the neck. The pointed end portion 7 can cooperate with the socket 8 to form a ring structure, so that it can be firmly tied around the neck.

[0038] As Figure 3As shown in the figure, a cooling eye mask includes an eye mask body 9 made of a cooling sheet with adjustable temperature. Hanging ears 10 are respectively connected to both ends of the eye mask body 9. The eye mask body 9 made of the cooling sheet with adjustable temperature fits on the eyes, which can bring a continuous cooling effect to the eyes and relieve eye fatigue.

[0039] The utility model can be made or cut into different shapes according to requirements, such as silk scarves, eye masks, face masks, etc. The following are the specific parameters of the cooling sheet with adjustable temperature of the utility model when it is made into a product.

[0040] Example 1: Cooling neck band ( Figure 2 )

[0041] Temperature adjustment layer 1: Made of polyester-based phase change fabric (phase change temperature 25°C), with a gram weight of 100 g / ㎡;

[0042] Gel heat conduction and cooling layer 2: Polyacrylate sodium hydrogel with a thickness of 1 mm, adding L-menthol to enhance the cooling sensation;

[0043] Protection layer 3: Tencel non-woven fabric, with a gram weight of 80 g / ㎡.

[0044] Example 2: Cooling eye mask ( Figure 3 )

[0045] Temperature adjustment layer 1: Made of spandex-based phase change fabric (phase change temperature 28°C), with a gram weight of 200 g / ㎡;

[0046] Gel heat conduction and cooling layer 2: Polyacrylate sodium hydrogel with a thickness of 1 mm, adding WS-23 flavoring agent to enhance the cooling sensation;

[0047] Protection layer 3: PP non-woven fabric, with a gram weight of 50 g / ㎡.

[0048] Example 3: Medical cold compress patch

[0049] Temperature adjustment layer 1: Made of cotton-based phase change fabric (phase change temperature 25°C), with a gram weight of 80 g / ㎡;

[0050] Thermal conduction transition layer 4: PVA solution added with phase change microcapsules (addition amount 5%);

[0051] Gel heat conduction and cooling layer 2: Polyacrylate sodium hydrogel with a thickness of 1 mm, adding nano-flake boron nitride to enhance the heat transfer speed;

[0052] Protection layer 3: PP non-woven fabric, with a gram weight of 100 g / ㎡.

[0053] Although the present utility model has been described in detail above with general descriptions and specific embodiments, based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. An adjustable-temperature cooling sheet, characterized in that, Comprising: A temperature regulation layer (1), applied to the skin surface; A gel heat-conducting and cooling layer (2), arranged on the lower side of the temperature regulation layer (1); A protective layer (3), arranged on the lower side of the gel heat-conducting and cooling layer (2); The temperature regulation layer (1) is a phase-change cool feeling material made of phase-change microcapsules and a fiber substrate by means of printing, impregnation or spinning and weaving; The gel heat-conducting and cooling layer (2) is a boron nitride gel layer.

2. The adjustable temperature cooling and refreshing tablet according to claim 1, wherein, A heat-conducting transition layer (4) is arranged between the temperature regulation layer (1) and the gel heat-conducting and cooling layer (2).

3. The adjustable-temperature cooling tablet according to claim 2, wherein The heat-conducting transition layer (4) is a PVA layer.

4. The adjustable-temperature cooling tablet according to claim 1, wherein The material gram weight of the temperature regulation layer (1) is 20 - 400 g / ㎡.

5. The adjustable-temperature cooling tablet according to claim 1, wherein The thickness of the gel heat-conducting and cooling layer (2) is 0.5 - 8 mm.

6. The adjustable-temperature cooling tablet according to claim 1, characterized in that, The material gram weight of the protective layer (3) is 30 - 300 g / ㎡.

7. A cooling neckband, characterized in that, Comprising a strip portion (6) made of the adjustable-temperature cooling and refreshing sheet according to any one of claims 1 - 6, with a pointed end portion (7) arranged at one end of the strip portion (6) and a socket (8) matching the pointed end portion (in the 7) arranged at the other end.

8. A cooling eye mask, characterized in that, Comprising an eye mask body (9) made of the adjustable-temperature cooling and refreshing sheet according to any one of claims 1 - 6, with ear hooks (10) respectively connected to both ends of the eye mask body (9).

Images