Double-layer phase change cooling cold storage bag
By using a double-layer phase change cooling cold storage bag design, the inner layer matches the temperature of the human body, while the outer layer uses water to increase the enthalpy value, thus solving the problems of short service time and discomfort of existing cold storage bags and achieving improvements in comfort and efficiency.
Patent Information
- Application Number
- CN202423250693.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-27
AI Technical Summary
When existing cold storage bags use pure water or inorganic salts/organic phase change materials, the phase change temperature or enthalpy is insufficient, resulting in short service life and discomfort to the human body.
It adopts a double-layer structure, with different phase change materials adsorbed in the inner and outer phase change layers respectively. The inner layer has a phase change temperature of 25℃, which is suitable for the human body, while the outer layer is water to increase the enthalpy value. Combined with the design of heat conduction, heat insulation, heat preservation and radiation protection layers, it extends the service life and comfort.
It provides a continuous and stable cooling sensation, extends the service life, and improves the comfort and work efficiency of operators. The inner layer matches the body temperature, while the outer layer absorbs heat energy through water phase change, significantly increasing the enthalpy value.
Smart Images
Figure CN223560213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a double-layer phase change cooling and cold storage bag. Background Technology
[0002] The main material of conventional cold storage bags is usually one of pure water, inorganic salts or organic phase change materials. These main materials are filled into bags made of sealing materials and sealed to prevent leakage.
[0003] However, cold storage bags that use pure water as the main material have a low phase change temperature and are more irritating to the human body. Cold storage bags that use inorganic salts or organic phase change materials as the main material have a low phase change enthalpy and a short service life. Utility Model Content
[0004] The main purpose of this invention is to provide a double-layer phase change cooling and cold storage bag to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved by adopting the following technical solution:
[0006] A double-layer phase change cooling and cold storage bag includes a sealing plate, an inner phase change layer disposed on the inner side of the sealing plate, an outer phase change layer disposed on the outer side of the sealing plate, a thermally conductive layer disposed on the outer side of the inner phase change layer, a thermal insulation layer disposed on the outer side of the outer phase change layer, a heat preservation layer disposed on the outer side of the thermal insulation layer, a radiation protection layer disposed on the outer side of the heat preservation layer, and a packaging shell disposed outside the radiation protection layer and the thermally conductive layer.
[0007] Preferably, the encapsulation plate has encapsulation grooves on both its inner and outer sides, and the inner phase change layer and the outer phase change layer are respectively encapsulated in the encapsulation grooves on the inner and outer sides.
[0008] Preferably, each side has four encapsulation slots, which are evenly distributed on the encapsulation plate.
[0009] Preferably, the phase change materials adsorbed in the inner phase change layer and the outer phase change layer are different, and the phase change material adsorbed in the outer phase change layer is water.
[0010] Preferably, the phase transition temperature of the phase transition material adsorbed in the inner phase transition layer is 25°C.
[0011] Preferably, a connecting plate is provided on one side of the encapsulation plate.
[0012] Preferably, the outer side of the packaging shell is provided with a zipper.
[0013] The beneficial technical effects of this utility model are as follows:
[0014] The cold storage bag provided by this invention is placed inside a vest during use, with one side of the inner phase change layer close to the body. The phase change temperature of the phase change material adsorbed in the inner phase change layer is 25°C, which is compatible with human body temperature. This allows it to continuously and stably provide a comfortable cooling sensation for workers during operation, effectively alleviating discomfort in high-temperature environments. The phase change material adsorbed in the outer phase change layer is water. As a high-enthalpy substance, water can absorb a large amount of heat energy during its phase change process, thereby significantly increasing the enthalpy of the entire system. This design not only extends the service life of the cold storage bag but also ensures a continuous and stable release of cooling energy, further improving the work efficiency and comfort of workers. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of the internal structure of the cold storage bag according to an embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the external structure of the cold storage bag according to an embodiment of the present invention;
[0017] Figure 3 This is a schematic diagram of the packaging board structure of an embodiment of the present invention.
[0018] In the diagram: 1. Encapsulation board; 2. Inner phase change layer; 3. Outer phase change layer; 4. Thermal conductive layer; 5. Heat insulation layer; 6. Thermal insulation layer; 7. Radiation protection layer; 8. Packaging shell; 9. Encapsulation groove; 10. Connecting plate; 11. Zipper. Detailed Implementation
[0019] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0020] like Figures 1-3 As shown, this embodiment provides a double-layer phase change cooling and cold storage bag, including a sealing plate 1, an inner phase change layer 2 disposed on the inner side of the sealing plate 1, an outer phase change layer 3 disposed on the outer side of the sealing plate 1, a thermally conductive layer 4 disposed on the outer side of the inner phase change layer 2, a thermal insulation layer 5 disposed on the outer side of the outer phase change layer 3, a heat insulation layer 6 disposed on the outer side of the heat insulation layer 5, a radiation protection layer 7 disposed on the outer side of the heat insulation layer 6, and a packaging shell 8 disposed outside the radiation protection layer 7 and the thermally conductive layer 4.
[0021] The phase change temperature of the phase change material adsorbed in the inner phase change layer 2 is 25°C, which is compatible with human body temperature. The phase change material adsorbed in the outer phase change layer 3 is water, which can increase the enthalpy of the system and extend its service life.
[0022] The encapsulation plate 1 uses thermoplastic polyurethane, which is high-strength and not easily damaged or leaking. The inner phase change layer 2 and outer phase change layer 3 are porous shaping materials, which can better control the shape during the phase change process and provide good wearing comfort. The heat insulation layer 5 is made of aerogel material with an ultra-low thermal conductivity, which can minimize the loss of cold energy to the environment. The radiation protection layer 7 is made of aluminum foil, which can reduce the loss of cold energy through heat radiation. The packaging shell 8 uses flexible packaging material for greater comfort.
[0023] When using the product, first open the packaging shell 8 to allow the inner phase change layer 2 and outer phase change layer 3 to come into contact with the cold air. After the cold storage is complete, close the packaging shell 8 to prevent cold air leakage. Then, place the cold storage bag into a vest with the inner phase change layer 2 side close to the body. After the worker puts on the vest, they can continuously receive the cold energy transferred by the cold storage bag, improving the worker's comfort.
[0024] In this embodiment, as Figure 3 As shown, the inner and outer sides of the encapsulation plate 1 are provided with encapsulation grooves 9. The inner phase change layer 2 and the outer phase change layer 3 are respectively encapsulated in the encapsulation grooves 9 on the inner and outer sides, so that the inner phase change layer 2 and the outer phase change layer 3 can be firmly fixed in the encapsulation plate 1, thereby improving the overall stability and durability of the product.
[0025] In this embodiment, as Figure 3 As shown, each side has four encapsulation slots 9, which are evenly distributed on the encapsulation plate 1, so that the cold storage bag can provide uniform cold release during use.
[0026] In this embodiment, as Figure 1 As shown, the phase change materials adsorbed in the inner phase change layer 2 and the outer phase change layer 3 are different. The phase change material adsorbed in the outer phase change layer 3 is water. Different phase change materials have different thermophysical properties. By using different phase change materials in the inner phase change layer 2 and the outer phase change layer 3, more precise temperature control and longer service life can be achieved. In particular, using water as the phase change material in the outer phase change layer 3 can significantly increase the enthalpy of the system and extend its service life.
[0027] In this embodiment, as Figure 1 As shown, the phase change temperature of the phase change material adsorbed in the inner phase change layer 2 is 25°C, which is close to the human body temperature. This means that when in use, the cold storage bag can provide a more comfortable and natural cooling effect, avoiding the human body from feeling too cold or uncomfortable.
[0028] In this embodiment, as Figure 3 As shown, a connecting plate 10 is provided on one side of the encapsulation plate 1 to facilitate the connection of the various layers of materials together.
[0029] In this embodiment, as Figure 2As shown, a zipper 11 is provided on the outside of the packaging shell 8. Before use, open the zipper 11 to allow the inner phase change layer 2 and the outer phase change layer 3 to come into contact with cold air. After the cold storage is completed, close the zipper 11 to prevent cold air leakage.
[0030] In summary, in this embodiment, the cold storage bag provided is placed inside a vest with one side of the inner phase change layer 2 close to the human body. The phase change temperature of the phase change material adsorbed in the inner phase change layer 2 is 25°C, which is compatible with human body temperature. This allows for a continuous and stable supply of comfortable cooling to workers during operation, effectively alleviating discomfort in high-temperature environments. The phase change material adsorbed in the outer phase change layer 3 is water. As a high-enthalpy substance, water's phase change process can absorb a large amount of heat energy, thereby significantly increasing the enthalpy of the entire system. This design not only extends the service life of the cold storage bag but also ensures a continuous and stable release of cooling energy, further improving the work efficiency and comfort of workers.
[0031] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.
Claims
1. A double-layer phase change cooling and cold storage bag, characterized in that: The package includes a packaging plate (1), an inner phase change layer (2) is provided on the inner side of the packaging plate (1), an outer phase change layer (3) is provided on the outer side of the packaging plate (1), a heat-conducting layer (4) is provided on the outer side of the inner phase change layer (2), a heat insulation layer (5) is provided on the outer side of the outer phase change layer (3), a heat insulation layer (6) is provided on the outer side of the heat insulation layer (5), a radiation protection layer (7) is provided on the outer side of the heat insulation layer (6), and a packaging shell (8) is provided on the outer side of the radiation protection layer (7) and the heat-conducting layer (4).
2. The double-layer phase change cooling and cold storage bag according to claim 1, characterized in that: The inner and outer sides of the encapsulation plate (1) are provided with encapsulation grooves (9), and the inner phase change layer (2) and the outer phase change layer (3) are respectively encapsulated in the encapsulation grooves (9) on the inner and outer sides.
3. The double-layer phase change cooling and cold storage bag according to claim 2, characterized in that: Each side has four encapsulation slots (9), which are evenly distributed on the encapsulation plate (1).
4. The double-layer phase change cooling and cold storage bag according to claim 1, characterized in that: The phase change materials adsorbed in the inner phase change layer (2) and the outer phase change layer (3) are different, and the phase change material adsorbed in the outer phase change layer (3) is water.
5. A double-layer phase change cooling and cold storage bag according to claim 1, characterized in that: The phase change temperature of the phase change material adsorbed in the inner phase change layer (2) is 25°C.
6. A double-layer phase change cooling and cold storage bag according to claim 1, characterized in that: A connecting plate (10) is provided on one side of the encapsulation plate (1).
7. A double-layer phase change cooling and cold storage bag according to claim 1, characterized in that: The outer side of the packaging shell (8) is provided with a zipper (11).