Uniform-temperature energy storage device
By using a uniform temperature energy storage device with energy storage cavity and heat conduction cavity on electronic components, the problem of slow and uneven heat dissipation caused by multiple heat sources or periodic heat sources is solved, and rapid and uniform heat dissipation is achieved, ensuring the stable operation of electronic components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BOCHUANG SPACE THERMAL ENERGY TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional heat dissipation methods cannot effectively solve the problem of multiple heat sources or periodic heat sources, resulting in slow and uneven heat dissipation, which affects the performance and stability of electronic components.
The device employs a uniform temperature energy storage system, which includes an energy storage cavity and a heat conduction cavity within the shell. The energy storage cavity and the heat conduction cavity are arranged adjacent to each other. The energy storage phase change working fluid absorbs heat and undergoes a phase change reaction, while the heat conduction phase change working fluid transfers heat, thus constructing a path for heat absorption, transfer, and dispersion, achieving rapid and uniform heat dissipation.
Through the synergistic effect of energy storage phase change working fluid and thermally conductive phase change working fluid, heat at the heat source is dissipated quickly and evenly, maintaining the relative temperature balance of electronic components and providing reliable thermal management assurance.
Smart Images
Figure CN224250027U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology for electronic components, and in particular to a uniform temperature energy storage device. Background Technology
[0002] With the continuous development of chip technology, there are more and more types of high-power and high-heat electronic components. As the integration level of electronic components becomes higher and higher, some electronic components often have the problem of multiple heat sources or periodic heat sources during use. Traditional heat dissipation methods are generally water cooling or air cooling, but they cannot meet the heat dissipation requirements of multiple heat sources or periodic heat sources.
[0003] In existing technologies, phase change heat absorbers, heat conductors, and phase change heat spreaders are typically used to dissipate heat from electronic components. The phase change heat absorbers and heat conductors are located on the same surface of the phase change heat spreader, with the heat absorber covering the heat source. The heat absorber absorbs heat from the heat source and transfers it to the phase change heat spreader, which then absorbs heat and transfers excess heat to the heat conductor for further dissipation. However, in actual heat dissipation, the heat source only contacts the phase change heat absorber, and the phase change heat absorber has poor thermal conductivity. This results in slow and uneven heat dissipation from the heat source, leading to reduced performance or damage to the electronic components. Utility Model Content
[0004] The purpose of this invention is to provide a uniform temperature energy storage device that can quickly and evenly dissipate the heat of the energy storage phase change working fluid at the heat source, maintain the relative temperature balance of electronic components, and provide reliable thermal management protection for the stable operation of electronic components.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A temperature equalization energy storage device, used to absorb heat from a heat source, includes:
[0007] A housing covering the heat source is provided. The housing contains an energy storage cavity and a heat conduction cavity, which are arranged adjacent to each other and can simultaneously contact the heat source. Both the energy storage cavity and the heat conduction cavity extend along a first extending direction of the housing. The energy storage cavity can contain an energy storage phase change working fluid that can absorb heat. The heat conduction cavity contains a heat conduction phase change working fluid that can transfer heat.
[0008] Preferably, there are N energy storage cavities and N-1 heat conduction cavities. Along the second extension direction of the shell, there is a heat conduction cavity between each two adjacent energy storage cavities. The second extension direction of the shell is perpendicular to the first extension direction of the shell. N is an integer and N≥2.
[0009] Preferably, the thermally conductive phase change working fluid is a phase change liquid, and the isothermal energy storage device further includes:
[0010] A capillary structure is disposed within the heat-conducting cavity, and the capillary structure exerts a capillary effect on the phase change liquid.
[0011] Preferably, the capillary structure is formed by sintering a porous material.
[0012] Preferably, the housing is a one-piece molded structure.
[0013] Preferably, the housing is made of aluminum alloy.
[0014] Preferably, the temperature equalization energy storage device further includes:
[0015] A separator is connected to the housing and disposed within the energy storage cavity. The separator extends along the extension direction of the energy storage cavity and divides the energy storage cavity into multiple partition cavities, each of which contains the energy storage phase change working fluid.
[0016] Preferably, along the first extending direction of the housing, one end of the housing is provided with a groove, the groove communicating with the energy storage cavity, and the temperature equalization energy storage device further includes:
[0017] A first sealing element is capable of being connected within the groove and of sealing the energy storage cavity.
[0018] Preferably, a groove is provided at one end of the housing along a first extending direction, and the heat-conducting cavity can communicate with the groove. The temperature-equalizing energy storage device further includes:
[0019] The second sealing element is fixedly connected to one end of the heat-conducting cavity that communicates with the groove;
[0020] The third sealing element is fixedly connected to the opposite end of the heat-conducting cavity along the extending direction of the heat-conducting cavity.
[0021] Preferably, the temperature equalization energy storage device further includes:
[0022] A cover is connected to the housing, and a receiving cavity is provided inside the cover, in which the third sealing member is received.
[0023] The beneficial effects of this utility model are:
[0024] This utility model discloses a uniform temperature energy storage device for absorbing heat from a heat source. It includes a shell covering the heat source, and an energy storage cavity and a heat conduction cavity are provided inside the shell. The energy storage cavity and the heat conduction cavity are arranged adjacent to each other and can simultaneously contact the heat source. Both the energy storage cavity and the heat conduction cavity extend along a first extending direction of the shell. The energy storage cavity can contain an energy storage phase change working medium that can absorb heat, and the heat conduction cavity contains a heat conduction phase change working medium that can transfer heat.
[0025] When electronic components generate heat, the energy storage phase change medium in the energy storage cavity at the heat source absorbs heat. When the temperature reaches the phase change point of the energy storage phase change medium, a phase change reaction occurs, absorbing a large amount of latent heat, thereby suppressing the temperature at the heat source. At the same time, the heat-conducting phase change medium in the heat-conducting cavity also continuously absorbs heat and undergoes a phase change reaction, transferring heat from adjacent energy storage cavities to non-heat source areas. This causes the energy storage phase change medium at non-heat source areas to absorb heat and undergo a phase change reaction, accelerating the absorption of heat from the heat source. Through the synergistic effect of the energy storage phase change medium and the heat-conducting phase change medium, a path for heat absorption, transfer, and dispersion is constructed, quickly and evenly dissipating the heat from the energy storage phase change medium at the heat source, maintaining the relative temperature balance of the electronic components, and providing reliable thermal management for the stable operation of the electronic components. Attached Figure Description
[0026] Figure 1 This is a first exploded view of the uniform temperature energy storage device provided in this embodiment of the utility model;
[0027] Figure 2 This is a cross-sectional view of the uniform temperature energy storage device provided in this embodiment of the utility model;
[0028] Figure 3 This is an exploded view of the second structure of the uniform temperature energy storage device provided in this embodiment of the utility model.
[0029] In the picture:
[0030] 1. Shell; 11. Energy storage cavity; 111. First cavity; 112. Second cavity; 12. Heat conduction cavity; 13. Groove; 2. Capillary structure; 3. Separator;
[0031] 4. First sealing element; 5. Second sealing element; 6. Third sealing element; 7. Shell cover; 71. Receiving cavity;
[0032] 8. Fourth sealing component. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0037] This embodiment provides a uniform temperature energy storage device for absorbing heat from a heat source, such as... Figure 1 and Figure 2As shown, the uniform temperature energy storage device includes a shell 1, which covers the heat source. The shell 1 has an energy storage cavity 11 and a heat conduction cavity 12 inside. The energy storage cavity 11 and the heat conduction cavity 12 are arranged adjacent to each other and can simultaneously contact the heat source. The energy storage cavity 11 and the heat conduction cavity 12 both extend along the first extension direction of the shell 1. The energy storage cavity 11 can contain an energy storage phase change working medium, which can absorb heat. The heat conduction cavity 12 contains a heat conduction phase change working medium, which can transfer heat.
[0038] When electronic components generate heat, the energy storage phase change medium in the energy storage cavity 11 at the heat source absorbs heat. When the temperature reaches the phase change point of the energy storage phase change medium, a phase change reaction occurs, absorbing a large amount of latent heat, thereby suppressing the temperature at the heat source. Simultaneously, the heat-conducting phase change medium in the heat-conducting cavity 12 also continuously absorbs heat and undergoes a phase change reaction, transferring heat from the adjacent energy storage cavity 11 to non-heat source areas. This causes the energy storage phase change medium at non-heat source areas to absorb heat and undergo a phase change reaction. Through the synergistic effect of the energy storage phase change medium and the heat-conducting phase change medium, a path for heat absorption, transfer, and dispersion is established, quickly and evenly dissipating the heat from the energy storage phase change medium at the heat source, maintaining a relatively balanced temperature for the electronic components, and providing reliable thermal management for the stable operation of the electronic components. It should be noted that in this embodiment, the extension direction of the housing 1 is... Figure 1 In the direction of A, that is Figure 3 In the direction A.
[0039] Specifically, in this embodiment, the thermal conductivity of the thermally conductive phase change working medium is greater than that of the energy storage phase change working medium. This further accelerates heat transfer. In other embodiments, the thermal conductivity of the thermally conductive phase change working medium is equal to that of the energy storage phase change working medium, or the thermal conductivity of the thermally conductive phase change working medium may be less than that of the energy storage phase change working medium. No limitation is imposed here.
[0040] Optionally, such as Figure 1 As shown, in this embodiment, the housing 1 is a plate-like structure. The plate-like structure provides better heat dissipation. In other embodiments, the housing 1 can also be a disc-shaped structure or a block-like structure; no limitation is made here.
[0041] Optionally, in this embodiment, the shell 1 is a one-piece molded structure, specifically formed by extrusion molding. The one-piece molded structure has no obvious splicing marks and features high strength and good stability. In other embodiments, the shell 1 can also be welded or bonded, etc. No limitations are imposed here.
[0042] Furthermore, the housing 1 is made of aluminum alloy. Aluminum alloy is lightweight and has good thermal conductivity. In other embodiments, the housing 1 may also be made of copper. No limitation is made herein.
[0043] Optionally, such as Figure 1 and Figure 2 As shown, in this embodiment, the heat-conducting cavity 12 has a circular cavity structure. Circular cavities are simple to manufacture. In other embodiments, the heat-conducting cavity 12 may also have a square cavity or other shapes. No limitations are imposed here.
[0044] Optionally, in this embodiment, the energy storage phase change medium is a hydrated inorganic salt phase change material. Hydrated inorganic salt phase change materials are typically solids that undergo a solid-liquid phase transition upon absorbing heat. These materials exhibit high heat storage density, high thermal conductivity, and a moderate phase transition temperature. In other embodiments, the energy storage phase change medium can also be an alkane-based phase change material or a metallic phase change material, etc., and there are no limitations on this.
[0045] Specifically, in this embodiment, the hydrated inorganic salt phase change material can be a hydrated sulfate phase change material, a hydrated chloride phase change material, or a hydrated nitrate phase change material; no limitation is made in this embodiment.
[0046] Optionally, in this embodiment, the heat-conducting phase change working medium is a phase change liquid, and the isothermal energy storage device further includes a capillary structure 2, which is disposed within the heat-conducting cavity 12. The capillary structure 2 exerts a capillary effect on the phase change liquid. Therefore, the phase change liquid in the heat-conducting cavity 12 absorbs heat from the energy storage phase change working medium at the heat source and evaporates into a gaseous phase change liquid, flowing to a location away from the heat source. There, it condenses, releasing latent heat of vaporization. This latent heat is absorbed by the energy storage phase change working medium at the non-heat source location. After releasing latent heat, the vapor condenses into a liquid. Due to the effect of the capillary structure 2, the liquid phase change liquid flows back to the heat source location through the capillary structure 2, continuing to transfer heat through liquid-gas-liquid phase transitions. This accelerates the melting and heat absorption of the energy storage phase change working medium in the energy storage cavity 11, which is adjacent to the heat-conducting cavity 12 and located at the non-heat source location, thus achieving rapid heat dissipation of electronic components. It should be noted that capillary action is existing technology and will not be elaborated upon here.
[0047] Optionally, in this embodiment, the phase change liquid can be acetone, ethanol, or water, etc., and any one of them can be used in this embodiment. In other embodiments, the type of phase change liquid is not limited, as long as the phase change liquid has a high latent heat of vaporization.
[0048] Optionally, such as Figure 2 As shown, in this embodiment, the capillary structure 2 is a cylindrical structure. The outer wall of the cylindrical structure is in contact with the inner wall of the heat-conducting cavity 12. This allows heat to be directly transferred from the capillary structure 2 through the shell 1 to the energy storage cavity 11, shortening the heat transfer path. In other embodiments, the capillary structure 2 can also be multiple annular structures spaced apart within the heat-conducting cavity 12, or it can be a square tubular structure with its four sides in contact with the inner wall of the heat-conducting cavity 12, etc. No limitations are imposed here.
[0049] Optionally, in this embodiment, the capillary structure 2 is sintered from a porous material. It can be a copper-based porous material or a nickel-based porous material; this embodiment is not limited to any particular material. In other embodiments, the capillary structure 2 can also be an iron-based porous material or a titanium-based porous material, etc. This is not a limitation.
[0050] Furthermore, such as Figure 1 and Figure 2 As shown, N energy storage cavities 11 and N-1 heat conduction cavities 12 are provided. Along the second extending direction of the shell 1, a heat conduction cavity 12 is provided between each pair of adjacent energy storage cavities 11. The second extending direction of the shell 1 is perpendicular to the first extending direction of the shell 1, where N is an integer, N≥2. By setting the energy storage cavities 11 and heat conduction cavities 12, the energy storage cavities 11 and heat conduction cavities 12 are arranged alternately along the second extending direction of the shell 1. That is, along the second extending direction of the shell 1, both sides of the energy storage cavity 11 are heat conduction cavities 12, and similarly, both sides of the heat conduction cavity 12 are energy storage cavities 11. This arrangement allows the heat inside the energy storage cavity 11 located at the heat source to be transferred and dissipated from both sides through the heat conduction cavities 12, resulting in the uniform melting of the energy storage phase change working fluid within the energy storage cavity 11 and further accelerating the heat conduction effect of the energy storage phase change working fluid within the energy storage cavity 11. It should be noted that, in this embodiment, the second extending direction of the shell 1 is... Figure 1 In the B direction.
[0051] Optionally, such as Figure 1 and Figure 2 As shown, in this embodiment, ten energy storage cavities 11 and nine heat conduction cavities 12 are provided. In other embodiments, eight energy storage cavities 11 and seven heat conduction cavities 12 may be provided, etc. No limitation is made here.
[0052] Furthermore, such as Figure 1 and Figure 2 As shown, the isothermal energy storage device also includes a separator 3, which is connected to the housing 1 and is disposed within the energy storage cavity 11. The separator 3 extends along the extending direction of the energy storage cavity 11, dividing the energy storage cavity 11 into multiple partitioned cavities, each containing a phase change working fluid. The separator 3 increases the structural strength of the housing 1 and the contact area between the phase change working fluid and the housing 1, allowing the heat from the phase change working fluid to dissipate from the housing 1, thus improving the thermal conductivity and accelerating the heat dissipation effect of the isothermal energy storage device. It should be noted that in this embodiment, the separator 3 is a partition plate. In other embodiments, the separator 3 can also be a partition block, etc. No limitation is made here.
[0053] Optionally, in this embodiment, the extension length of the separator 3 is the same as the extension length of the energy storage cavity 11, so that the first cavity 111 and the second cavity 112 are not connected to each other. In other embodiments, multiple separators 3 are arranged parallel to each other along the extension direction of the energy storage cavity 11. There is no limitation here. As long as the structural strength of the shell 1 can be increased while the contact area with the energy storage phase change medium is increased.
[0054] Specifically, in this embodiment, the partition 3 is integrally formed and connected to the housing 1. In other embodiments, the partition 3 may also be welded or bonded to the housing 1. No limitations are imposed here.
[0055] Specifically, in this embodiment, the material of the partition 3 is the same as that of the housing 1, both being aluminum alloy. Connections made of the same material have higher strength. In other embodiments, the material of the partition 3 may be different from that of the housing 1. No restrictions are placed here.
[0056] Optionally, in this embodiment, the separator 3 divides the energy storage cavity 11 into two separate cavities, namely a first cavity 111 and a second cavity 112, both of which contain an energy storage phase change working fluid. In other embodiments, the separator 3 may also divide the energy storage cavity 11 into three, four, or five separate cavities, etc. No limitation is imposed here.
[0057] Furthermore, such as Figure 3 As shown, along the extending direction of the shell 1, one end of the shell 1 is provided with a groove 13, which communicates with the energy storage cavity 11. The isothermal energy storage device also includes a first sealing member 4, which can be connected within the groove 13 and can seal the energy storage cavity 11. Placing the first sealing member 4 within the groove 13 improves the aesthetics of the isothermal energy storage device. It should be noted that in this embodiment, the first sealing member 4 is a sealing plate. In other embodiments, the first sealing member 4 can also be a sealing piece corresponding one-to-one with the energy storage cavity 11, etc. No limitation is made here. It should also be noted that in this embodiment, the groove 13 is an oblong groove. In other embodiments, the groove 13 can also be a rectangular groove or an elliptical groove, etc. No limitation is made here.
[0058] Specifically, in this embodiment, the groove 13 extends along the second extending direction of the housing 1, and the first sealing member 4 extends along the second extending direction of the housing 1. Furthermore, the extension length of the groove 13 is the same as the extension length of the first sealing member 4 along the second extending direction of the housing 1. This arrangement enables the first sealing member 4 to simultaneously seal and block ten energy storage cavities 11, thereby improving the sealing efficiency.
[0059] Optionally, such as Figure 1As shown, in this embodiment, the temperature equalization energy storage device also includes a fourth sealing element 8, which is sealed and connected to the end of the energy storage cavity 11 away from the groove 13.
[0060] Specifically, in this embodiment, the first sealing element 4 and the fourth sealing element 8 are welded to the opposite ends of the energy storage cavity 11. Specifically, laser welding is used for sealing. In other embodiments, adhesive bonding or spiral sealing connections can also be used, etc., and this is not limited here.
[0061] Furthermore, along the extending direction of the shell 1, a groove 13 is provided at one end of the shell 1, and the heat-conducting cavity 12 can communicate with the groove 13. The temperature equalization energy storage device also includes a second sealing member 5 and a third sealing member 6; wherein, the second sealing member 5 is fixedly connected to the end of the heat-conducting cavity 12 that communicates with the groove 13, and the third sealing member 6 is fixedly connected to the opposite end of the heat-conducting cavity 12 along the extending direction of the heat-conducting cavity 12. The above arrangement creates a vacuum environment inside the heat-conducting cavity 12.
[0062] Optionally, in this embodiment, the second sealing element 5 is a circular sealing column. In other embodiments, the second sealing element 5 can also be a circular sealing plate, etc. No limitation is made here. It should be noted that in this embodiment, the second sealing element 5 is welded to the end where the heat-conducting cavity 12 communicates with the groove 13. Specifically, laser welding sealing is used. In other embodiments, adhesive sealing or spiral sealing connections can also be used, etc., no limitation is made here.
[0063] Optionally, in this embodiment, the third sealing member 6 has a liquid inlet hole, and the through hole extends through the third sealing member 6 along the extension direction of the housing 1. By providing the liquid inlet hole, it is convenient to fill the heat conduction cavity 12 with phase change liquid.
[0064] During the process of filling the heat conduction cavity 12 with phase change liquid, the phase change liquid is first filled into the heat conduction cavity 12 through the liquid inlet hole, then the liquid inlet hole is sealed, and then the third sealing member 6 is pre-pressed along the first extension direction of the shell 1 toward the groove 13 to isolate the pressure difference between the heat conduction cavity 12 and the external environment. Then the third sealing member 6 is fixedly connected to the other end of the heat conduction cavity 12.
[0065] Specifically, in this embodiment, the third sealing element 6 is welded to the other end of the heat-conducting cavity 12. Specifically, laser welding is used for sealing. In other embodiments, adhesive bonding or spiral sealing connections can also be used, etc., and there are no limitations here.
[0066] Optionally, such as Figure 3As shown, in this embodiment, along the first extending direction of the housing 1, the first sealing member 4 is located outside the second sealing member 5. This arrangement can prevent the thermally conductive phase change working fluid in the thermally conductive cavity 12 from leaking into the energy storage phase change working fluid in the energy storage cavity 11, and the first sealing member 4 can further reinforce the second sealing member 5.
[0067] Furthermore, such as Figure 1 and Figure 3 As shown, the isothermal energy storage device also includes a cover 7, which is connected to the housing 1. A receiving cavity 71 is provided inside the cover 7, and the third sealing member 6 is housed within the receiving cavity 71. The cover 7 surrounds the third sealing member 6, preventing it from being touched during use and thus avoiding leakage of the heat-conducting phase change working fluid in the heat-conducting cavity 12, thereby improving the reliability of the isothermal energy storage device.
[0068] Optionally, in this embodiment, the cover 7 is adhesively bonded to the housing 1. In other embodiments, the cover 7 may also be plugged into or magnetically attached to the housing 1, etc. No limitations are imposed here.
[0069] Specifically, in this embodiment, the cover 7 and the housing 1 are bonded together with structural adhesive, specifically J-133 structural adhesive. In other embodiments, the structural adhesive can also be 3M structural adhesive, etc. No limitation is made here.
[0070] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A temperature-regulating energy storage device for absorbing heat from a heat source, characterized in that, include: A housing (1) covers the heat source. The housing (1) contains an energy storage cavity (11) and a heat conduction cavity (12). The energy storage cavity (11) and the heat conduction cavity (12) are arranged adjacent to each other. The energy storage cavity (11) and the heat conduction cavity (12) can simultaneously contact the heat source. The energy storage cavity (11) and the heat conduction cavity (12) both extend along a first extending direction of the housing (1). The energy storage cavity (11) can contain an energy storage phase change working medium. The energy storage phase change working medium can absorb heat. The heat conduction cavity (12) contains a heat conduction phase change working medium. The heat conduction phase change working medium can transfer heat.
2. The isothermal energy storage device according to claim 1, characterized in that, The energy storage cavity (11) is provided with N, and the heat conduction cavity (12) is provided with N-1. Along the second extension direction of the shell (1), there is a heat conduction cavity (12) between two adjacent energy storage cavities (11). The second extension direction of the shell (1) is perpendicular to the first extension direction of the shell (1). N is an integer and N≥2.
3. The isothermal energy storage device according to claim 1, characterized in that, The thermally conductive phase change working fluid is a phase change liquid, and the isothermal energy storage device further includes: The capillary structure (2) is disposed in the heat-conducting cavity (12) and exerts a capillary effect on the phase change liquid.
4. The isothermal energy storage device according to claim 3, characterized in that, The capillary structure (2) is formed by sintering porous materials.
5. The isothermal energy storage device according to any one of claims 1-4, characterized in that, The shell (1) is a one-piece molded structure.
6. The isothermal energy storage device according to any one of claims 1-4, characterized in that, The housing (1) is made of aluminum alloy.
7. The isothermal energy storage device according to any one of claims 1-4, characterized in that, The uniform temperature energy storage device also includes: A separator (3) is connected to the housing (1) and is disposed in the energy storage cavity (11). The separator (3) extends along the extension direction of the energy storage cavity (11) and divides the energy storage cavity (11) into multiple partition cavities, each of which contains the energy storage phase change working fluid.
8. The isothermal energy storage device according to any one of claims 1-4, characterized in that, Along the first extending direction of the housing (1), a groove (13) is provided at one end of the housing (1), the groove (13) communicating with the energy storage cavity (11), and the uniform temperature energy storage device further includes: The first sealing element (4) can be connected in the groove (13) and can seal the energy storage cavity (11).
9. The isothermal energy storage device according to any one of claims 1-4, characterized in that, Along the first extending direction of the housing (1), a groove (13) is provided at one end of the housing (1), and the heat-conducting cavity (12) can communicate with the groove (13). The uniform temperature energy storage device further includes: The second sealing element (5) is fixedly connected to one end of the heat-conducting cavity (12) that communicates with the groove (13); The third sealing element (6) is fixedly connected to the opposite end of the heat-conducting cavity (12) along the extension direction of the heat-conducting cavity (12).
10. The isothermal energy storage device according to claim 9, characterized in that, The uniform temperature energy storage device also includes: The cover (7) is connected to the housing (1), and the cover (7) has a receiving cavity (71) inside, and the third sealing member (6) is housed in the receiving cavity (71).