Portable heat preservation device based on phase change material

Abstract

The utility model discloses a portable heat preservation device based on phase change materials, which comprises a hot water bag body, the hot water bag body is composed of an outer layer rubber protective sleeve, a multi-layer inner container protective structure and a phase change material heat preservation layer, and the phase change material heat preservation layer is arranged between the outer layer rubber protective sleeve and the multi-layer inner container protective structure. A water injection opening is formed in the top end of the hot water bag body, a sealing heat insulation cover is arranged in the water injection opening, and the inner side and the outer side of the phase change material heat preservation layer are both made of PVC materials. According to the utility model, the phase-change material of the phase-change heat-preservation product can absorb heat of injected high-temperature hot water, so that the temperature is rapidly reduced to a temperature suitable for a human body, and the heat is continuously released at the temperature to realize long-time heat preservation, and the phase-change heat-preservation product can be used for a long time in a temperature range suitable for the human body; meanwhile, the change of the phase change material is physical change, so that the possible electric leakage danger can be avoided without charging.

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation devices, in particular to a portable heat preservation device based on phase change materials. Background Art

[0002] At present, hot water bottles on the market are divided into two categories: rechargeable hot water bottles and water-filled hot water bottles. Both use water as a medium to store heat, but the products have defects such as insufficient heat preservation time, large temperature fluctuations, discomfort and even the risk of scalding. At the same time, there are certain charging safety risks during the use of rechargeable hot water bottles. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a portable heat preservation device based on phase change material.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a portable thermal insulation device based on phase change material, comprising a hot water bag body, the hot water bag body consisting of an outer rubber protective cover, a multi-layer inner liner protection structure and a phase change material thermal insulation layer, the phase change material thermal insulation layer is arranged between the outer rubber protective cover and the multi-layer inner liner protection structure, the top end of the hot water bag body is provided with a water filling port, and the inside of the water filling port is provided with a sealed insulation cover.

[0005] As a further description of the above technical solution:

[0006] The inner and outer sides of the phase change material insulation layer are both made of PVC material, and the outer wall is 15 cm long, 3 cm wide and 20 cm high.

[0007] As a further description of the above technical solution:

[0008] The multi-layer liner protection structure consists of an inner skin layer and a plurality of equidistantly arranged separation layers, and a through opening is formed through the surface of the separation layer.

[0009] As a further description of the above technical solution:

[0010] The sealing heat-insulating cover is made of hard plastic, the surface of the sealing heat-insulating cover is provided with external threads and a rubber gasket, and the sealing heat-insulating cover is threadedly connected to the water injection port through the external threads.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, the portable thermal insulation device based on phase change materials can absorb the heat injected into high-temperature hot water, quickly reduce the temperature to a temperature suitable for the human body, and continuously release heat at this temperature to achieve long-term thermal insulation. This phase change thermal insulation product can be used for a long time in a temperature range suitable for the human body. At the same time, the changes based on the phase change materials are all physical changes, and the possible risk of leakage can be avoided without charging.

[0013] 2. Compared with the existing technology, this portable insulation device based on phase change material, the phase change insulation product can realize the organic combination of phase change material and traditional hot water bag products. It has a simple structure, safe use, low price, and good universality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view from a first perspective of a portable heat preservation device based on phase change material proposed by the utility model;

[0015] Figure 2 A cross-sectional view from a second perspective of a portable heat preservation device based on phase change material proposed by the utility model;

[0016] Figure 3 This is an internal schematic diagram of a portable heat preservation device based on phase change material proposed by the utility model.

[0017] Legend:

[0018] 1. Hot water bag body; 11. Outer rubber protective cover; 12. Multi-layer liner protective structure; 13. Phase change material insulation layer; 14. Water filling port; 15. Sealed insulation cover; 121. Inner skin layer; 122. Separation layer; 123. Through-hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figures 1 to 3The utility model provides a portable heat preservation device based on phase change material: comprising a hot water bag body 1, the hot water bag body 1 is composed of an outer rubber protective sleeve 11, a multi-layer liner protection structure 12 and a phase change material heat preservation layer 13, the phase change material heat preservation layer 13 is arranged between the outer rubber protective sleeve 11 and the multi-layer liner protection structure 12, the top of the hot water bag body 1 is provided with a water injection port 14, the inside of the water injection port 14 is provided with a sealed heat insulation cover 15, the phase change material heat preservation layer 13 transforms the physical state by absorbing heat, thereby reducing the temperature of water in the multi-layer liner protection structure 12, the phase change material heat preservation layer 13 can select calcium chloride hexahydrate: strontium chloride hexahydrate: maleic anhydride: sodium formate: sodium chloride: potassium persulfate: water in a mass ratio of 27:23:7.5:6.5:7.5:3.5:25 as the phase change material, and the phase change temperature is 40°C-50°C;

[0021] The inner and outer sides of the phase change material insulation layer 13 are made of PVC material, the outer wall is 15 cm long, 3 cm wide and 20 cm high, the multi-layer liner protection structure 12 is composed of an inner skin layer 121 and a plurality of equidistantly arranged separation layers 122, and a through hole 123 is opened on the surface of the separation layer 122. The high-temperature hot water is divided into a plurality of areas by the set separation layer 122, so that the high-temperature hot water can be better absorbed by the phase change material insulation layer 13. The hot water can flow into each separated area through the set through hole 123. The sealed insulation cover 15 is made of hard plastic, and the surface of the sealed insulation cover 15 is provided with an external thread and a rubber gasket. The sealed insulation cover 15 is threadedly connected with the water injection port 14 through the external thread, and the rubber gasket is used to seal the water injection port 14 to prevent water leakage, thereby avoiding the adverse consequences of hot water overflowing to the user. The sealed insulation cover 15 can be rotated to remove the water injection port 14, and the water injection port 14 can be opened, and the high-temperature hot water can be injected into the hot water bag body 1 through the water injection port 14.

[0022] Working principle: In the field of materials, there is a type of low-temperature phase change heat storage material that has the ability to change its physical state within a certain temperature range. Taking solid-liquid phase change as an example, when heated to the melting temperature, a phase change from solid to liquid occurs. During the melting process, the phase change material absorbs and stores a large amount of heat; when the phase change material cools, the stored heat is released, and a reverse phase change from liquid to solid is performed. In these two phase change processes, the temperature of the material itself remains almost unchanged before the phase change is completed, forming a wide temperature platform. Although the temperature remains unchanged, the latent heat absorbed or released is quite large;

[0023] Low-temperature phase change materials have the characteristics of high heat storage density, nearly constant temperature phase change process, stable and controllable output, and a large number of low-temperature phase change materials with large latent heat of phase change between 40℃-100℃, which can be used to solve the intermittent and volatile nature of heat acquisition, as well as the contradiction between heat production and energy consumption in time and space. It has important application value and broad prospects in many fields such as aerospace, heating and air conditioning, medical engineering, military engineering, thermal storage buildings and extreme environment clothing;

[0024] The high-temperature hot water is divided into multiple areas by the provided separation layer 122, so that the high-temperature hot water can be better absorbed by the phase change material insulation layer 13, and the hot water can flow into each separation area through the provided through-hole 123. The sealed heat-insulating cover 15 is made of hard plastic, and the provided rubber gasket is used to seal the water injection port 14 to prevent water leakage and avoid hot water overflow and adverse consequences for users. The sealed heat-insulating cover 15 can be rotated to remove the water injection port 14, and the high-temperature hot water can be injected into the hot water bag body 1 through the water injection port 14.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable heat preservation device based on phase change material, comprising a hot water bag body (1), characterized in that: The hot water bag body (1) is composed of an outer rubber protective sleeve (11), a multi-layer inner liner protective structure (12), and a phase change material thermal insulation layer (13); the phase change material thermal insulation layer (13) is arranged between the outer rubber protective sleeve (11) and the multi-layer inner liner protective structure (12); a water injection port (14) is arranged at the top end of the hot water bag body (1); and a sealed heat-insulating cover (15) is arranged inside the water injection port (14).

2. A portable heat preservation device based on phase change material according to claim 1, characterized in that: The inner and outer sides of the phase change material insulation layer (13) are both made of PVC material, and the outer wall is 15 cm long, 3 cm wide and 20 cm high.

3. A portable heat preservation device based on phase change material according to claim 1, characterized in that: The multi-layer liner protection structure (12) is composed of an inner skin layer (121) and a plurality of equidistantly arranged separation layers (122), and a through opening (123) is formed through the surface of the separation layer (122).

4. A portable heat preservation device based on phase change material according to claim 1, characterized in that: The sealing heat-insulating cover (15) is made of hard plastic, and the surface of the sealing heat-insulating cover (15) is provided with external threads and a rubber gasket. The sealing heat-insulating cover (15) is threadedly connected to the water injection port (14) via the external threads.

Images