energy storage device

Abstract

The utility model relates to the technical field of energy storage, specifically relates to a kind of energy storage device. Including: energy end, the energy end is used to generate heat or cold quantity;Heat conduction component, the heat conduction component is connected with the energy end, the heat conduction component is used to conduct the heat or cold quantity of the energy end;Phase-change energy storage piece, the heat conduction component is used to heat or cold transmission to the phase-change energy storage piece. Energy end and heat conduction component are connected in energy storage device, energy end can generate heat or cold quantity, the cold quantity or heat generated by energy end is conducted to phase-change energy storage piece by heat conduction component, so that phase-change energy storage piece can accept heat or cold quantity from the heat conduction component conduction, to make phase-change energy storage piece store cold or heat;So it can make heat or cold quantity can be more efficient to be conducted to phase-change energy storage piece, to make phase-change energy storage piece realize energy storage;Phase-change energy storage piece can also be applied to heating or refrigeration equipment, to make relevant equipment realize refrigeration or heating.

Description

Technical Field

[0001] This utility model relates to the field of energy storage, specifically to an energy storage device. Background Technology

[0002] A thermal storage device is a system that uses specific devices to store temporarily unused or excess heat through a certain heat storage material, and then releases it for use when needed. This type of system is used in heating systems, air conditioning systems, and other applications. However, currently, the heat storage efficiency of thermal storage devices is relatively low. Utility Model Content

[0003] Therefore, this utility model provides an energy storage device. The energy storage device can improve the energy storage efficiency of phase change energy storage devices.

[0004] This utility model provides the following technical solution:

[0005] An energy storage device, comprising:

[0006] An energy terminal, which is used to generate heat or cold;

[0007] A heat-conducting component, which is connected to the energy terminal, is used to conduct heat or cold from the energy terminal.

[0008] A phase change energy storage device, wherein the heat-conducting component is used to transfer heat or cold to the phase change energy storage device.

[0009] Furthermore, the energy end includes: a compressor, a condenser, a throttle valve, and an evaporator;

[0010] The compressor is connected to the condenser, the condenser is connected to the throttle, the throttle is connected to the evaporator, and a heat exchange medium is provided inside the compressor. The compressor is used to compress and drive the heat exchange medium to circulate between the evaporator and the condenser, so as to make the evaporator cool or the condenser heat.

[0011] Furthermore, the condenser has at least one mounting portion; the mounting portion is used to mount the phase change energy storage device;

[0012] Alternatively, the evaporator may have at least one mounting portion for mounting the phase change energy storage device.

[0013] Furthermore, the heat pipe of the condenser is configured as a coaxial pipe, and the outer tube or the inner tube of the coaxial pipe is provided with a phase change energy storage device.

[0014] Furthermore, it also includes: a housing and a first driving component;

[0015] The condenser or the evaporator is disposed inside the housing, the first driving member is disposed inside the housing, a phase change energy storage device is disposed inside the housing, and the first driving member is used to drive the airflow inside the housing to flow inside the housing.

[0016] Furthermore, the heat-conducting component includes: a heat-collecting element, a heat-conducting element, and a heat-dissipating structure;

[0017] The heat collector is connected to the condenser, the heat collector is connected to the heat conductor, and the heat release structure is connected to the heat conductor. The heat conductor is used to transfer heat or cold from the condenser to the heat release structure.

[0018] Furthermore, the heat dissipation structure includes: heat dissipation fins and a second driving member;

[0019] The heat dissipation fins are connected to the heat-conducting component. The heat dissipation fins are provided with a recessed portion. The second driving component is disposed in the recessed portion and is used to drive airflow.

[0020] Furthermore, the heat dissipation fins include multiple heat dissipation fins, which are spaced apart, and a flow channel is formed between two adjacent heat dissipation fins.

[0021] Furthermore, it also includes: a heat exchanger, a first heat exchange tube, and a second heat exchange tube;

[0022] The housing has a medium cavity and a first heat exchange port and a second heat exchange port communicating with the medium cavity. The heat exchanger is disposed on one side of the housing. The first heat exchange port is connected to the heat exchanger through a first heat exchange tube, and the second heat exchange port is connected to the heat exchanger through a second heat exchange tube.

[0023] Furthermore, a heat insulation layer is provided on the outer periphery of the shell.

[0024] In an energy storage device, the energy end is connected to a heat-conducting component. The energy end can generate heat or cold. The heat or cold generated by the energy end is conducted to the phase change energy storage device through the heat-conducting component. In this way, the phase change energy storage device can receive the heat or cold conducted from the heat-conducting component, so that the phase change energy storage device can store cold or heat. This allows the heat or cold to be conducted to the phase change energy storage device more efficiently, thereby enabling the phase change energy storage device to achieve energy storage. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 One of the structural schematic diagrams of the energy storage device provided in the embodiments of this utility model;

[0027] Figure 2 A schematic diagram of the energy terminal provided in an embodiment of this utility model;

[0028] Figure 3 A schematic diagram of the coaxial tube of the condenser provided in this embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the heat-conducting component provided in an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the heat-dissipating structure provided in an embodiment of the present utility model;

[0031] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0032] Figure 7 A schematic diagram of the outer shell provided for an embodiment of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100-Energy storage device; 10-Energy end; 11-Compressor; 12-Condenser; 13-Throttle; 14-Evaporator; 15-Mounting part; 16-Shell; 161-Medium cavity; 162-First heat exchange port; 163-Second heat exchange port; 17-First driving component; 20-Heat conducting component; 21-Heat collector; 22-Heat conducting component; 23-Heat dissipation structure; 231-Heat dissipation fins; 232-Second driving component; 233-Recess; 234-Heat dissipation fin; 235-Flow channel; 30-Phase change energy storage device; 41-Heat exchanger; 42-First heat exchange tube; 43-Second heat exchange tube; 50-Insulation layer. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0037] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] A thermal storage device is a system that uses specific devices to store temporarily unused or excess heat through a certain heat storage material, and then releases it for use when needed. This type of system is used in heating systems, air conditioning systems, and other applications. However, currently, the heat storage efficiency of thermal storage devices is relatively low.

[0039] An air conditioner, also known as an air conditioning unit, is a device that uses artificial means to regulate and control parameters such as temperature, humidity, and airflow velocity of the air inside a building or structure. Currently, existing air conditioners include an indoor unit and an outdoor unit. The indoor unit includes a condenser, while the outdoor unit includes a compressor, condenser, dryer (or receiver-dryer), and expansion valve (or throttling device). Typically, when cooling, the indoor unit blows out cold air, while the outdoor unit blows out hot air. Because the hot air blown out by the outdoor unit is directly discharged into the atmosphere, energy is wasted.

[0040] The cooling principle of an air conditioner is generally that the compressor compresses the gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant, which is then sent to the condenser for cooling. After cooling, it becomes a medium-temperature, high-pressure liquid refrigerant. The medium-temperature, high-pressure liquid refrigerant enters a dryer for filtration and dehumidification. After filtration and dehumidification, the medium-temperature, high-pressure liquid refrigerant is throttled and depressurized by the expansion valve (throttling device) into a low-temperature, low-pressure gas-liquid mixture (usually with more liquid). This mixture then absorbs heat from the air and vaporizes, becoming a gas, thus achieving cooling by absorbing heat from the air.

[0041] Therefore, this embodiment provides an energy storage device. The energy storage device can improve the energy storage efficiency of phase change energy storage devices.

[0042] Please see Figure 1 An energy storage device 100 includes:

[0043] Energy terminal 10, which is used to generate heat or cold;

[0044] A heat-conducting component 20 is connected to the energy terminal 10 and is used to conduct heat or cold energy from the energy terminal 10.

[0045] Phase change energy storage device 30, the heat conduction component 20 is used to transfer heat or cold to the phase change energy storage device 30.

[0046] The energy end 10 in the energy storage device 100 is connected to the heat conduction component 20. The energy end 10 can generate heat or cold. The heat or cold generated by the energy end 10 is conducted to the phase change energy storage device 30 through the heat conduction component 20. In this way, the phase change energy storage device 30 can receive the heat or cold conducted from the heat conduction component 20, so that the phase change energy storage device 30 can store cold or heat. This allows the heat or cold to be conducted to the phase change energy storage device 30 more efficiently, thereby enabling the phase change energy storage device 30 to achieve energy storage.

[0047] Please see Figure 2 In some embodiments, the energy terminal 10 includes: a compressor 11, a condenser 12, a throttle 13, and an evaporator 14;

[0048] The compressor 11 is connected to the condenser 12, the condenser 12 is connected to the throttle 13, the throttle 13 is connected to the evaporator 14, and the compressor 11 is provided with a heat exchange medium. The compressor 11 is used to compress and drive the heat exchange medium to circulate between the evaporator 14 and the condenser 12, so as to make the evaporator 14 cool or make the condenser 12 heat.

[0049] Understandably, the energy end 10 includes a compressor 11 assembly, which includes: compressor 11, condenser 12, expansion valve 13, and evaporator 14. Compressor 11 is connected to condenser 12, condenser 12 is connected to expansion valve 13, and expansion valve 13 is connected to evaporator 14. A heat exchange medium is provided inside compressor 11. Compressor 11 can compress and drive the heat exchange medium to circulate between evaporator 14 and condenser 12. Specifically, when compressor 11 generates high-temperature, high-pressure gas, heat is generated when it passes through condenser 12, thus achieving heating. Condenser 12 can release heat to transform the high-temperature, high-pressure gas into a medium-temperature, high-pressure gas. After dissipating heat, the gas enters expansion valve 13 and then evaporator 14, where it transforms into a low-temperature liquid and absorbs heat, thus achieving cooling.

[0050] Please see Figure 2 In some embodiments, the condenser 12 has at least one mounting portion 15; the mounting portion 15 is used to mount the phase change energy storage device 30.

[0051] Alternatively, the evaporator 14 may have at least one mounting portion 15 for mounting the phase change energy storage device 30.

[0052] Understandably, at least one mounting part 15 is provided on the condenser 12, and a phase change energy storage element 30 is provided on the mounting part 15; or at least one mounting part 15 is provided on the evaporator 14, and a phase change energy storage element 30 is provided on the mounting part 15; or at least one mounting part 15 is provided on both the condenser 12 and the evaporator 14. By simultaneously providing the phase change energy storage element 30 on both the condenser 12 and the evaporator 14, it is possible to simultaneously store cold or heat.

[0053] Please see Figure 3 In some embodiments, the heat pipe of the condenser 12 is configured as a coaxial tube, and the outer tube or the inner tube of the coaxial tube is provided with a phase change energy storage device 30.

[0054] Understandably, by setting the heat pipe of the condenser 12 as a coaxial tube, the inner tube of the coaxial tube can be used to allow the flow of high-temperature and high-pressure gas, while the outer tube is used to install the phase change energy storage device 30. In this way, the heat generated by the condenser 12 can be absorbed by the phase change energy storage device 30 located inside the coaxial tube, or the outer tube of the coaxial tube can be used to allow the flow of high-temperature and high-pressure gas, while the inner tube is used to install the phase change energy storage device 30; thereby realizing the energy storage of the phase change energy storage device 30. At the same time, the coaxial tube can make the heat more evenly distributed on the side wall of the pipe, thus making the energy storage efficiency of the phase change energy storage device 30 higher.

[0055] Please see Figure 2 In some embodiments, it also includes: housing 16 and first drive member 17;

[0056] The condenser 12 or the evaporator 14 is disposed inside the housing 16, the first driving member 17 is disposed inside the housing 16, and a phase change energy storage device 30 is disposed inside the housing 16. The first driving member 17 is used to drive the airflow inside the housing 16 to flow inside the housing 16.

[0057] Understandably, the compressor 11 assembly also includes a housing 16 and a first drive unit 17. The condenser 12 can be disposed within the housing 16, and the evaporator 14 can also be disposed within the housing 16. Alternatively, a first housing 16 and a second housing 16 can be disposed, with the condenser 12 disposed within the first housing 16 and the evaporator 14 disposed within the second housing 16. A phase change energy storage unit 30 can be disposed within the housing 16, enabling the phase change energy storage unit 30 to store cold, heat, or both simultaneously. To improve the heat transfer efficiency of the phase change energy storage unit 30, a drive unit is also disposed within the housing 16. The drive unit drives the airflow within the housing 16, thereby enabling faster and more efficient heat exchange and improving the heat exchange efficiency of the phase change energy storage unit 30.

[0058] Please see Figure 4 In some embodiments, the heat-conducting component 20 includes: a heat-collecting element 21, a heat-conducting element 22, and a heat-dissipating structure 23;

[0059] The heat collector 21 is connected to the condenser 12, the heat collector 21 is connected to the heat conductor 22, and the heat release structure 23 is connected to the heat conductor 22. The heat conductor 22 is used to transfer the heat or cold energy on the condenser 12 to the heat release structure 23.

[0060] Understandably, the housing 16 driving component in this design is a parallel configuration. The heat-conducting assembly 20 includes a heat collector 21, a heat conductor 22, and a heat-dissipating structure 23. The heat collector 21 is connected to the condenser 12 or the evaporator 14, so that heat from the condenser 12 can be conducted to the heat collector 21, or cold energy from the evaporator 14 can be conducted to the heat collector 21. The heat collector 21 is connected to the heat conductor 22, which conducts heat or cold energy from the heat collector 21 to the heat-dissipating structure 23, thus transferring heat from the heat collector 21 through the heat conductor 22. The heat conductor 22 is connected to the heat dissipation structure 23, allowing heat or cold energy from the heat collector 21 to be conducted to the heat dissipation structure 23. The heat dissipation structure 23 then releases the heat or cold energy and conducts it to the phase change energy storage device 30 (which can be directly attached to the heat dissipation structure 23 or positioned close to it). This allows the phase change energy storage device 30 to receive more heat from the condenser 12 or cold energy from the evaporator 14 and store it. This reduces energy loss during heat transfer and improves heat transfer efficiency.

[0061] Please see Figure 4 and Figure 5 In some embodiments, the heat dissipation structure 23 includes: heat dissipation fins 231 and a second driving member 232;

[0062] The heat dissipation fins 231 are connected to the heat conductor 22. The heat dissipation fins 231 are provided with a recess 233. The second driving member 232 is disposed in the recess 233 and is used to drive the airflow.

[0063] Understandably, the heat dissipation structure 23 includes heat dissipation fins 231 and a second driving component 232. By connecting the heat dissipation fins 231 to the heat conduction component 22, the heat from the heat collection component 21 can be transferred to the heat dissipation fins 231. In this way, the heat dissipation fins 231 can generate heat or cold energy. By releasing heat or cold energy through the heat dissipation fins 231, the phase change energy storage device 30 can absorb more heat or cold energy, thereby improving the energy storage efficiency of the phase change energy storage device 30.

[0064] Please see Figure 6 In some embodiments, the heat dissipation fins 231 include a plurality of heat dissipation fins 234, which are spaced apart, and a flow channel 235 is formed between two adjacent heat dissipation fins 234.

[0065] Understandably, the heat sink 231 includes multiple heat sinks 234, and the heat sinks 234 are spaced apart along their thickness direction. A flow channel 235 is formed between two adjacent heat sinks 234 to allow airflow. In order to enable the heat sinks 234 to better receive heat, a second driving member 232 is disposed on one side of the heat sink 231, and the direction of its driving airflow is the same as the direction of the flow channel 235 formed between the two heat sinks 234. When the second driving member 232 drives the airflow, the hot airflow first passes through the heat sinks 234, which can reduce heat loss and allow as much heat as possible to be transferred to the heat sinks 234, thereby increasing the amount of heat that the heat sink 231 can conduct to the heat storage component.

[0066] Please see Figure 7 In some embodiments, it also includes: heat exchanger 41, first heat exchange tube 42, and second heat exchange tube 43;

[0067] The housing 16 has a medium cavity 161 and a first heat exchange port 162 and a second heat exchange port 163 communicating with the medium cavity 161. The heat exchanger 41 is disposed on one side of the housing 16. The first heat exchange port 162 is connected to the heat exchanger 41 through the first heat exchange tube 42, and the second heat exchange port 163 is connected to the heat exchanger 41 through the second heat exchange tube 43.

[0068] Understandably, a medium cavity 161 is also provided inside the shell 16, and a first heat exchange port 162 and a second heat exchange port 163 are provided on the shell 16. The first heat exchange port 162 and the second heat exchange port 163 are connected to the medium cavity 161, so that the heat exchange medium can enter the medium cavity 161 through the first heat exchange port 162 and the second heat exchange port 163. Specifically, the heat exchanger 41 is provided on one side of the shell 16, and the heat exchanger 41 has an outlet and an inlet. The first heat exchange port 162 and the outlet are connected by the first heat exchange tube 42, and the second heat exchange port 163 is connected to the inlet by the second heat exchange tube 43. In this way, after the heat exchange medium flows out of the heat exchanger 41, it can enter the medium cavity 161 through the first heat exchange tube 42 and the first heat exchange port 162. After heat exchange in the medium cavity 161, it can be discharged from the medium cavity 161 through the second heat exchange port 163, the second heat exchange tube 43 and the inlet to achieve heat exchange.

[0069] Understandably, after the heat exchange medium enters the medium chamber 161, it can heat the shell 16 and provide a certain degree of insulation for the shell 16. When the heat source just starts working, the temperature of the shell 16 is low. The heat from the heat exchanger 41 can be transferred to the shell 16 through the heat exchanger 41, the first heat exchange tube 42, and the second heat exchange tube 43, thereby improving the heating efficiency of the energy storage device.

[0070] Please see Figure 7 In some embodiments, a heat insulation layer 50 is provided on the outer periphery of the housing 16.

[0071] It is understandable that a heat insulation layer 50 is provided on the outside of the housing 16. The heat insulation layer 50 can isolate the temperature inside the housing 16. Under the high temperature state of the housing 16, the heat insulation layer 50 can prevent the heat inside the housing 16 from leaking out, avoid the temperature dissipation inside the housing 16, reduce the energy storage efficiency of the phase change energy storage device 30 inside the housing 16, and reduce the waste of heat energy.

[0072] In some embodiments, the phase change energy storage device 30 may be made of a phase change material, such as sodium acetate trihydrate or paraffin. Sodium acetate trihydrate or paraffin is prepared by microencapsulation technology, that is, the phase change material is encapsulated in tiny capsules.

[0073] When the phase change energy storage device 30 absorbs heat, the ambient temperature rises to the phase change temperature of the phase change material, at which point the phase change material inside the capsule begins to absorb heat. The heat absorbed by the phase change material causes it to change from a solid to a liquid state; this process is called melting. During this process, the temperature of the phase change material inside the capsule remains relatively constant because the absorbed heat is used to overcome intermolecular forces rather than to raise the temperature.

[0074] When the phase change energy storage device 30 releases heat, the liquid phase change material inside the capsule begins to release heat when the ambient temperature drops below the phase change temperature of the phase change material. The phase change material releases heat and changes from a liquid to a solid state; this process is called solidification. Similarly, the temperature remains relatively constant during this process.

[0075] In some embodiments, it further includes: a support structure, the support structure comprising: a plurality of first support members and second support members;

[0076] Multiple first support members are spaced apart along a first direction, and second support members are disposed at the midpoint of the first support members along a second direction;

[0077] Multiple first support members and second support members together form a mounting part 15, and the phase change energy storage device 30 is disposed in the mounting part 15.

[0078] Understandably, the support assembly includes a first support member and a second support member, both of which are disposed within the housing 16. The first support member is spaced apart along a first direction, and the second support assembly is spaced apart along a second direction. Both ends of the second support rod are disposed on the first support rod. This allows the first and second support members to form multiple spaces capable of accommodating phase change energy storage devices 30. The first and second support members also enable the energy storage device to accommodate more phase change energy storage devices 30. After being installed in the first cavity, the phase change energy storage device 30 can store energy. After energy storage is completed, it can be removed from the first cavity. When in use, the phase change energy storage device 30 can be installed where needed. After being installed in the first cavity, the phase change energy storage device 30 can generate cold or heat through the energy end 10. By absorbing and storing the heat or cold generated by the energy end 10, energy storage can be achieved.

[0079] In this utility model, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. An energy storage device, characterized in that, include: An energy terminal, which is used to generate heat or cold; A heat-conducting component, which is connected to the energy terminal, is used to conduct heat or cold from the energy terminal. A phase change energy storage device, wherein the heat-conducting component is used to transfer heat or cold to the phase change energy storage device.

2. The energy storage device according to claim 1, characterized in that, The energy source includes: a compressor, a condenser, a throttle valve, and an evaporator; The compressor is connected to the condenser, the condenser is connected to the throttle, the throttle is connected to the evaporator, and a heat exchange medium is provided inside the compressor. The compressor is used to compress and drive the heat exchange medium to circulate between the evaporator and the condenser, so as to make the evaporator cool or the condenser heat.

3. The energy storage device according to claim 2, characterized in that, The condenser has at least one mounting portion; the mounting portion is used to mount the phase change energy storage device. Alternatively, the evaporator may have at least one mounting portion for mounting the phase change energy storage device.

4. The energy storage device according to claim 2, characterized in that, The heat pipe of the condenser is configured as a coaxial tube, and the outer tube or the inner tube of the coaxial tube is provided with a phase change energy storage device.

5. The energy storage device according to claim 2, characterized in that, Also includes: Housing, first driving component; The condenser or the evaporator is disposed inside the housing, the first driving member is disposed inside the housing, a phase change energy storage device is disposed inside the housing, and the first driving member is used to drive the airflow inside the housing to flow inside the housing.

6. The energy storage device according to claim 2, characterized in that, The heat-conducting component includes: a heat-collecting element, a heat-conducting element, and a heat-dissipating structure; The heat collector is connected to the condenser, the heat collector is connected to the heat conductor, and the heat release structure is connected to the heat conductor. The heat conductor is used to transfer heat or cold from the condenser to the heat release structure.

7. The energy storage device according to claim 6, characterized in that, The heat dissipation structure includes: heat dissipation fins and a second driving component; The heat dissipation fins are connected to the heat-conducting component. The heat dissipation fins are provided with a recessed portion. The second driving component is disposed in the recessed portion and is used to drive airflow.

8. The energy storage device according to claim 7, characterized in that, The heat dissipation fins include multiple heat dissipation fins, which are spaced apart, and a flow channel is formed between two adjacent heat dissipation fins.

9. The energy storage device according to claim 5, characterized in that, Also includes: Heat exchanger, first heat exchange tube, second heat exchange tube; The housing has a medium cavity and a first heat exchange port and a second heat exchange port communicating with the medium cavity. The heat exchanger is disposed on one side of the housing. The first heat exchange port is connected to the heat exchanger through a first heat exchange tube, and the second heat exchange port is connected to the heat exchanger through a second heat exchange tube.

10. The energy storage device according to claim 9, characterized in that, A heat insulation layer is provided on the outer periphery of the shell.

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