Novel heat and energy storage device
By adding high-thermal conductivity metal fillers to paraffin, the problem of the limited phase change heat storage technology speed of paraffin is solved, and more efficient heat storage and release are achieved, improving the endurance and heating portability of electric vehicles.
Patent Information
- Application Number
- CN202323515784.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The low thermal conductivity of paraffin limits the heat absorption and release speed of phase change heat storage technology, especially in low temperature environments, which affects the range of electric vehicles.
By adding high thermal conductivity metal fillers, such as copper or aluminum wire or sheets to paraffin, a new type of thermal storage and energy storage device is formed to enhance the thermal conductivity of paraffin.
It significantly improves the thermal conductivity rate of paraffin, enhances its practical application as an energy storage medium, improves the range of electric vehicles in low temperature environments, and provides a portable heating device.
Smart Images
Figure CN222688926U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of energy storage material application and energy storage technology, in particular to a novel heat storage energy storage device. Background Art
[0002] Phase change energy storage uses the morphological change of phase change materials to store and release large amounts of energy. Due to the high latent heat during the phase change process, it has a high energy storage density. However, the low thermal conductivity of paraffin significantly limits the speed at which phase change thermal storage technology absorbs and releases heat. In order to improve the practical applicability of paraffin, improving the thermal conductivity of paraffin is the key to developing phase change energy storage technology.
[0003] Low temperature environments can cause electric vehicles to have a significantly reduced range in cold weather. The range is reduced not only because low temperature affects the performance of the battery itself, but also because the air conditioning system consumes a huge amount of electricity for heating. Summary of the invention
[0004] The utility model aims to provide a novel heat storage device, which can enhance the thermal conductivity of paraffin and improve the practical applicability of paraffin.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a novel heat storage and energy storage device, comprising an outer shell and an inner shell, wherein the outer shell is can-shaped and made of metal material, and the inner shell comprises a heat storage and energy storage medium and a metal filler, wherein the heat storage and energy storage medium is paraffin, and the metal filler is in the form of a wire or a sheet.
[0006] A preparation method of a novel thermal energy storage device, the steps are as follows:
[0007] The metal filler is placed in the outer shell container, and then the melted paraffin is filled into the container, and finally sealed by spinning the cover or welding
[0008] way to seal it tightly.
[0009] Furthermore, the shell is in the shape of a can or a barrel.
[0010] Furthermore, the shell can be made of aluminum, copper, galvanized steel plate, stainless steel, titanium alloy, etc.
[0011] Furthermore, the shell is sealed by spinning or welding.
[0012] Furthermore, the metal filler is distributed in the container in a mesh or radial shape.
[0013] Furthermore, the metal filler is selected from metals with high thermal conductivity such as copper or aluminum.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The selected materials are all common materials and containers in life and production. In addition to having stable quality and output, mature technology, they also have the advantages of low price and high economy.
[0016] Second, filling the container with metal wires or metal sheets with high thermal conductivity greatly enhances the thermal conductivity of paraffin and improves the practical applicability of paraffin as an energy storage medium.
[0017] 3. This new type of thermal energy storage device adopts the phase change energy storage method. During the actual use of the device, it stores and releases more energy while having the advantage of small temperature changes of the device itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 , Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0019] In the figure: 1 and 4, outer shell; 2 and 5, thermal energy storage medium; 3 and 6, metal filler. DETAILED DESCRIPTION
[0020] The utility model provides the following technical solutions: a novel heat storage and energy storage device and a preparation method thereof, which improves the thermal conductivity of paraffin by adding metal fillers, so that the high heat storage and energy storage characteristics of paraffin are matched with life needs.
[0021] Figure 1 , Figure 2 The overall structure diagram of the utility model is as follows: the shells 1 and 4 are can-shaped, the shells 1 and 4 are made of metal materials, the interior includes heat storage medium 2 and 5 and metal fillers 3 and 6, the heat storage medium 2 and 5 are paraffin, and the metal fillers 3 and 6 are filamentous or sheet-shaped.
[0022] Working principle: In the utility model, due to its high energy storage density, it can be made into a small and portable device, which can be regarded as a heat battery. It is small and portable, has many application scenarios, and is easy to use. For example, it can be used in electric vehicles to provide heat in the passenger space of electric vehicles, thereby not using battery power and indirectly increasing the battery life. In addition to being used in electric vehicles, it can also be used in other scenarios that require heating. At the same time, it does not require electricity and can be used as emergency heating equipment in some scenarios.
[0023] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A new type of thermal energy storage device, characterized in that : comprising a shell (1), a heat storage medium (2), and a metal filler (3) in, The outer shell (1) is in the shape of a can and is made of a metal material. The heat storage medium (2) is paraffin and the metal filler (3) is in the shape of a filament or a sheet.
2. A novel thermal energy storage device according to claim 1, characterized in that The sealing method of the shell (1) is spinning sealing or welding sealing.