A fin for an energy storage device and an energy storage device thereof

Abstract

The utility model provides a kind of fin for energy storage equipment, comprising: heat conduction component, the heat conduction component includes first elastic plate and second elastic plate, the first elastic plate is installed in the side of the second elastic plate;Multiple radiating plates, multiple the radiating plates are evenly set in one end of the first elastic plate and the second elastic plate.The utility model provides a kind of fin for energy storage equipment, by heat conduction component and radiating plate mutually cooperate, when using, heat conduction component uses the elastic structure design of first elastic plate and second elastic plate, when energy storage piece generates thermal expansion due to charge and discharge, first elastic plate and second elastic plate will be extruded self-adapting deformation, always closely adhere to the surface of energy storage piece;When energy storage piece cooling shrink, first elastic plate and second elastic plate can also reset under the self elastic effect, keep adhering state, ensure that heat conduction path is always unobstructed, increase heat conduction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat sink technology, and in particular to a heat sink for energy storage devices and the energy storage device thereof. Background Technology

[0002] Against the backdrop of the rapid development of the new energy industry, energy storage systems, as an important part of peak shaving and frequency regulation in new energy power generation such as wind and solar, have received increasing investment and attention. Battery boxes are the basic units that make up electrochemical energy storage systems, and effective thermal management of them is an important measure to ensure the safe, efficient and reliable operation of energy storage systems.

[0003] When dissipating heat from an energy storage unit, heat sinks are required. For example, patent application CN221466656U (publication number) describes a heat sink main board and heat sink fins. The main board includes a hot end and a cold end. The hot end contacts the energy storage element to conduct heat from the element to the cold end. The main board has internal partitions that divide its cavity into multiple heat dissipation channels, each containing a phase change medium. The heat sink fins are located at the cold end, allowing heat conducted through the heat dissipation channels and phase change medium to be discharged. This heat dissipation component has a simple structure and good heat dissipation effect. Placing it between two energy storage elements in the energy storage device enables uniform temperature dissipation, resulting in a longer lifespan and more efficient operation of the energy storage elements, thus meeting the heat dissipation requirements of the core components within the energy storage device.

[0004] However, this type of traditional heat dissipation solution has obvious defects in practical applications: during the charging and discharging cycle and long-term operation, the energy storage unit will undergo periodic thermal expansion and contraction due to its own heat generation. The heat dissipation board of traditional heat sinks is mostly a rigid structure, lacking elastic adjustment capability, and cannot adaptively fit the surface of the energy storage unit according to the volume change. As the usage time goes by, gaps will gradually appear between the heat dissipation board and the side of the energy storage unit, resulting in a reduction in the contact area between the two and an obstruction of the heat conduction path, which in turn greatly reduces the heat conduction efficiency.

[0005] Therefore, it is necessary to provide a heat sink for energy storage devices and the energy storage device thereof to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a heat sink for energy storage devices and the energy storage device thereof, which solves the problem that traditional heat sinks, due to their rigid structure, cannot adapt to the thermal expansion and contraction of energy storage units, resulting in gaps between them and energy storage units and a decrease in thermal conductivity after long-term use.

[0007] To solve the above-mentioned technical problems, this utility model provides a heat sink for energy storage devices, comprising:

[0008] A heat-conducting assembly, comprising a first elastic plate and a second elastic plate, wherein the first elastic plate is mounted on the side of the second elastic plate;

[0009] Multiple heat sinks are evenly disposed at one end of the first elastic plate and the second elastic plate.

[0010] Preferably, the heat-conducting component further includes a plurality of mounting slots, which are respectively formed at one end of the first elastic plate and the second elastic plate.

[0011] Preferably, the plurality of heat sinks are respectively installed on the inner side of the plurality of mounting slots.

[0012] Preferably, both the first elastic plate and the second elastic plate have ventilation slots at the ends near the mounting groove.

[0013] Preferably, the heat sink for the energy storage device further includes two flexible heat-conducting sheets, which are respectively fixedly installed on opposite sides of the first elastic plate and the second elastic plate.

[0014] To address the aforementioned problems, this utility model also provides an energy storage device, comprising a housing, two air blowing assemblies, multiple energy storage units, and a heat sink for energy storage as described in any of the above-mentioned embodiments. The air blowing assemblies are respectively fixedly installed at both ends of the housing, and the multiple energy storage units are evenly arranged on the front and back sides of the inner side of the housing. The heat conduction assembly is disposed in the middle of the multiple energy storage units.

[0015] Preferably, the bottom of the housing is fixedly installed with feet on all four sides, and the top of the housing is fixedly installed with a handle.

[0016] Compared with related technologies, the heat sink and energy storage device provided by this utility model have the following beneficial effects:

[0017] This utility model provides a heat sink for an energy storage device and the energy storage device thereof. The heat sink and the heat dissipation plate work together. When in use, the heat dissipation component adopts an elastic structure design of a first elastic plate and a second elastic plate. When the energy storage device expands due to charging and discharging, the first elastic plate and the second elastic plate will be squeezed and deform adaptively, always closely adhering to the surface of the energy storage device. When the energy storage device cools and contracts, the first elastic plate and the second elastic plate can return to their original position under their own elasticity, maintaining the adhering state, ensuring that the heat conduction path is always unobstructed and increasing the heat conduction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a first embodiment of a heat sink for an energy storage device provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows another perspective of the structure.

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0021] Figure 4 This is a schematic diagram of the structure of a second embodiment of a heat sink for an energy storage device provided by this utility model;

[0022] Figure 5 A schematic diagram of a preferred embodiment of an energy storage device provided by this utility model;

[0023] Figure 6 for Figure 5 The diagram shows the internal structure of the shell.

[0024] The following are the labels in the diagram: 1. Heat-conducting component, 11. First elastic plate, 12. Second elastic plate, 13. Mounting groove, 2. Heat dissipation plate, 3. Ventilation groove, 4. Flexible heat-conducting sheet, 5. Housing, 6. Foot, 7. Handle, 8. Air blowing component, 9. Energy storage unit. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of a heat sink for an energy storage device provided by the present invention; Figure 2 for Figure 1 The diagram shows another perspective of the structure. Figure 3 for Figure 2 The enlarged schematic diagram of part A is shown.

[0028] A heat sink for an energy storage device includes: a heat-conducting component 1, the heat-conducting component 1 including a first elastic plate 11 and a second elastic plate 12, the first elastic plate 11 being mounted on the side of the second elastic plate 12;

[0029] Multiple heat sinks 2 are evenly disposed at one end of the first elastic plate 11 and the second elastic plate 12.

[0030] The heat-conducting component 1 also includes a plurality of mounting slots 13, which are respectively opened at one end of the first elastic plate 11 and the second elastic plate 12.

[0031] The plurality of heat sinks 12 are respectively installed on the inner side of the plurality of mounting slots 13.

[0032] Both the first elastic plate 11 and the second elastic plate 12 have ventilation slots 3 at one end near the mounting groove 13.

[0033] Both the first elastic plate 11 and the second elastic plate 12 are made of highly elastic and thermally conductive materials, such as elastic copper alloy, which have good elasticity and thermal conductivity.

[0034] Heat sink 2 uses thin metal sheets with high thermal conductivity, such as aluminum sheets or copper sheets;

[0035] The ventilation slots 3 on the first elastic plate 11 and the second elastic plate 12 can reduce the resistance of airflow when passing through the first elastic plate 11 and the second elastic plate 12, allowing the air to flow more smoothly between the first elastic plate 11 and the second elastic plate 12, carrying away more heat and further improving heat dissipation efficiency.

[0036] The working principle of the heat sink for energy storage devices provided by this utility model is as follows:

[0037] The heat-conducting component 1 of the heat sink is placed between two adjacent energy storage components, so that the outer surfaces of the first elastic plate 11 and the second elastic plate 12 are respectively attached to the sides of the two energy storage components. When the energy storage components expand due to heat generation during charging and discharging, the elastic plates are compressed and deformed, tightly adhering to the surface of the energy storage components to avoid gaps. When the energy storage components cool and shrink, the elastic plates return to their original position under their own elasticity, still maintaining the adhering state, ensuring that the heat conduction path is always unobstructed.

[0038] The heat generated by the energy storage device is transferred to the heat dissipation plate 2 at the end through the first elastic plate 11 and the second elastic plate 12. It is stably fixed by the mounting groove 13. Multiple heat dissipation plates 2 are evenly arranged to increase the heat dissipation area and accelerate the dissipation of heat into the air.

[0039] Compared with related technologies, the heat sink for energy storage devices provided by this utility model has the following beneficial effects:

[0040] By cooperating with each other, the heat-conducting component 1 and the heat sink 2 work together. When in use, the heat-conducting component 1 adopts an elastic structure design of the first elastic plate 11 and the second elastic plate 12. When the energy storage device expands due to charging and discharging, the first elastic plate 11 and the second elastic plate 12 will be squeezed and deform adaptively, always closely adhering to the surface of the energy storage device. When the energy storage device cools and contracts, the first elastic plate 11 and the second elastic plate 12 can return to their original position under their own elasticity, maintaining the adhering state, ensuring that the heat conduction path is always unobstructed and increasing the heat conduction efficiency.

[0041] Second Embodiment

[0042] Please refer to the following: Figure 4 Based on the heat sink for an energy storage device provided in the first embodiment of this application, the second embodiment of this application proposes another heat sink for an energy storage device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0043] Specifically, the second embodiment of this application provides a heat sink for an energy storage device that differs in that the heat sink for an energy storage device further includes two flexible heat-conducting sheets 4, which are respectively fixedly installed on opposite sides of the first elastic plate 11 and the second elastic plate 12.

[0044] The flexible heat-conducting sheet 4 is made of flexible graphite sheet or thermally conductive silicone sheet;

[0045] When the energy storage unit expands and contracts with heat, the flexible heat-conducting sheet 4 deforms synchronously with the elastic plate, always maintaining close contact with the energy storage device. At the same time, its softness can prevent the rigid edge of the elastic plate from scratching the insulation layer or shell on the surface of the energy storage device, thus playing a protective role.

[0046] In addition, the flexible heat-conducting sheet 4 can also buffer the impact of energy storage component vibration on the heat sink, enhance the heat sink's vibration resistance, and extend its service life.

[0047] The working principle of the heat sink for energy storage devices provided by this utility model is as follows:

[0048] Flexible heat-conducting sheets 4 are fixed to the outer surfaces of the first elastic plate 11 and the second elastic plate 12 respectively. The flexible heat-conducting sheets 4 have excellent flexibility and thermal conductivity, and can closely fit the tiny unevenness on the surface of the energy storage device, further eliminating the tiny gap between the elastic plate and the energy storage device and improving the heat conduction efficiency.

[0049] Compared with related technologies, the heat sink for energy storage devices provided by this utility model has the following beneficial effects:

[0050] By setting the flexible heat-conducting sheet 4, it can fill the gap between the elastic plate and the surface of the energy storage component during use, thereby further increasing the heat conduction effect.

[0051] To solve the above problems, this utility model also provides an energy storage device, including a housing 5, two blowing assemblies 7, multiple energy storage units 9, and heat sinks for energy storage devices as described in any of the above. The blowing assemblies 7 are respectively fixedly installed at both ends of the housing 5, and the multiple energy storage units 9 are evenly arranged on the front and back sides of the inner side of the housing 5. The heat conduction assembly 1 is disposed in the middle of the multiple energy storage units 9.

[0052] The bottom of the housing 5 is fixedly equipped with feet 6 on all four sides, and the top of the housing 5 is fixedly equipped with a handle 7.

[0053] Multiple energy storage units 9 (such as lithium battery modules) are evenly arranged on the front and back sides of the inner side of the housing 5. A heat-conducting component 1 is placed between two adjacent energy storage units 9 to ensure that the first elastic plate 11, the second elastic plate 12 and the flexible heat-conducting sheet 4 are tightly attached to the side of the energy storage unit.

[0054] Install the air blowing components 8 (such as axial fans) at both ends of the housing 5, start the air blowing components 8, so that air flows in from one end of the housing 5, passes through the heat sink 2 and ventilation slot 3 of the heat sink, takes away the heat on the heat sink, and flows out from the other end of the housing 5, forming forced air circulation and accelerating the heat dissipation inside the housing 5.

[0055] When the energy storage device is running, the heat generated by the energy storage unit 9 is transferred to the elastic plate through the flexible heat-conducting sheet 4, and then to the heat dissipation plate 2. The airflow driven by the blowing assembly 8 quickly removes the heat from the heat dissipation plate 2, realizing the synchronous and efficient heat dissipation of multiple energy storage units 9. The feet 6 at the bottom of the shell 5 ensure that the device is placed stably, and the handle 7 on the top facilitates the handling and installation of the device.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat sink for an energy storage device, characterized in that, include: A heat-conducting assembly, comprising a first elastic plate and a second elastic plate, wherein the first elastic plate is mounted on the side of the second elastic plate; Multiple heat sinks are evenly disposed at one end of the first elastic plate and the second elastic plate.

2. A heat sink for an energy storage device according to claim 1, characterized in that, The heat-conducting component also includes a plurality of mounting slots, which are respectively opened at one end of the first elastic plate and the second elastic plate.

3. A heat sink for an energy storage device according to claim 2, characterized in that, The heat sinks are respectively installed on the inner side of the mounting slots.

4. A heat sink for an energy storage device according to claim 3, characterized in that, Both the first elastic plate and the second elastic plate have ventilation slots at one end near the mounting groove.

5. A heat sink for an energy storage device according to claim 4, characterized in that, It also includes two flexible heat-conducting sheets, which are respectively fixedly installed on the opposite side of the first elastic plate and the second elastic plate.

6. An energy storage device, characterized in that, The device includes a housing, two air blowing assemblies, multiple energy storage units, and a heat sink for an energy storage device as described in any one of claims 1-5. The air blowing assemblies are respectively fixedly installed at both ends of the housing, the multiple energy storage units are evenly arranged on the front and back sides of the inner side of the housing, and the heat conduction assembly is disposed in the middle of the multiple energy storage units.

7. An energy storage device according to claim 6, characterized in that, The bottom of the housing is fixedly fitted with feet on all four sides, and the top of the housing is fixedly fitted with a handle.

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