New energy storage device and system

Abstract

The invention discloses a new energy storage device and system, and relates to the technical field of energy storage equipment, the new energy storage device comprises a main body mechanism, the main body mechanism comprises a cabinet body, the inner wall of the cabinet body is fixedly provided with a placing plate, and the bottom of the cabinet body is provided with a cooling mechanism. By arranging a cooling unit, an auxiliary unit and a drying unit, air is driven by an electric fan to enter an inner cavity of a connecting pipe and exchanges heat with cooling liquid in a circulating pipe for air in an inner cavity of a cabinet body, the temperature in the cabinet body is reduced, the capacity of the bottom of a battery module is improved through cooling fins, and through cooperation with the cooling unit, the cooling effect is improved. The heat dissipation capacity of the battery module can be improved, so that it is guaranteed that the battery module works at the proper temperature, air entering the connecting pipe is dried through the drying agent, air in the cabinet body can be kept dry, the battery module is prevented from making contact with water in the air, and therefore normal work of the battery module is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to a new energy storage device and system. Background Art

[0002] New energy storage equipment refers to equipment that can store energy, which can be electrical energy, thermal energy, mechanical energy, etc. It is widely used in power systems, renewable energy grid connection, electric vehicle charging stations and other fields. Battery energy storage converts electrical energy into chemical energy for storage through chemical batteries, and converts chemical energy into electrical energy when needed. Battery energy storage equipment has the advantages of small size, light weight and high storage energy density.

[0003] Battery energy storage devices generate a large amount of heat during use. Electric fans are typically installed inside the device's casing to allow internal air to flow to the outside, achieving air exchange. However, the environment is often dusty, and this heat is blocked by a dust screen. However, prolonged use can clog the screen, preventing the hot air from escaping. To address this issue, we propose a new energy storage device and system. Summary of the Invention

[0004] The purpose of the present invention is to provide a new energy storage device and system to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a new energy storage device, comprising a main body, the main body comprising a cabinet, a placement plate fixedly mounted on the inner wall of the cabinet, a battery module placed on top of the placement plate, and a cooling mechanism provided at the bottom of the cabinet;

[0006] The cooling mechanism includes a cooling unit, which is arranged at the bottom of the cabinet and is used to cool the hot air in the cabinet cavity;

[0007] The cooling mechanism includes an auxiliary unit, which is arranged at the bottom of the placement plate and is used to increase the heat dissipation capacity of the battery module;

[0008] A drying mechanism is provided on the surface of the cooling unit, and the drying mechanism is used to dry the air in the cabinet cavity. The drying mechanism is used in conjunction with the circulation mechanism.

[0009] Preferably, the cooling unit includes a water tank, which is fixedly installed on the bottom of the cabinet, and one side of the cabinet is fixedly connected with a connecting pipe, and both ends of the connecting pipe are fixedly connected with one side of the cabinet, and an electric fan is fixedly installed on the inner wall of the connecting pipe, and a water pump is fixedly installed on the top of the water tank, and the top of the water tank is fixedly connected with a water outlet pipe, one end of the water outlet pipe is fixedly connected to the input end of the water pump, and the output end of the water pump is fixedly connected with a circulation pipe, the surface of the circulation pipe is wrapped around the surface of the connecting pipe, one end of the circulation pipe passes through the inner wall of the cabinet and extends to the outside of the cabinet, the circulation pipe is arranged in a serpentine shape on the inner wall of the cabinet, and one end of the circulation pipe is fixedly connected to the top of the cabinet.

[0010] Preferably, the auxiliary unit includes a heating plate, which is fixedly mounted on the bottom of the placement plate, and a heat sink is fixedly mounted on the bottom of the heating plate, and the number of the heat sinks is several. A contact rod is fixedly mounted on the top of the heating plate, and one end of the contact rod passes through the top of the placement plate, and a contact is fixedly mounted on the top of the contact rod, and the top of the contact is in contact with the bottom of the battery module.

[0011] Preferably, the drying mechanism includes a sliding hole, the inner cavity of the sliding hole is slidably connected to a filter box, the inner cavity of the filter box is filled with a desiccant, a connecting block is fixedly installed on the surface of the connecting pipe, the surface of the connecting block is in contact with the surface of the filter box, the inner wall of the filter box is threadedly connected to a positioning rod, and the surface of the positioning rod is threadedly connected to the inner wall of the connecting block.

[0012] Preferably, a docking rod is fixedly mounted on the surface of the filter box, a docking groove is provided on the surface of the connecting block, and the surface of the docking rod is slidably connected to the inner cavity of the docking groove.

[0013] Preferably, a connecting frame is fixedly installed on one side of the cabinet, and the inner wall of the connecting frame is fixedly connected to the surface of the circulation pipe.

[0014] Preferably, foot pads are fixedly installed on the bottom of the water tank, and the number of the foot pads is four.

[0015] Preferably, a sealing ring is fixedly installed on the inner side of the filter box, and the surface of the sealing ring is in close contact with the inner wall of the sliding hole.

[0016] Preferably, a U-shaped block is fixedly mounted on the inner wall of the cabinet, and the inner side of the U-shaped block is in contact with the surface of the circulation pipe.

[0017] The energy storage system is characterized in that: the battery module includes a battery module, a thermal management module, a power meter conversion module and a control module;

[0018] A1: Battery module, the core energy storage unit, is composed of multiple single cells connected in series and parallel. It is responsible for storing electrical energy and is connected to an external power source or load through connecting lines.

[0019] A2: Thermal management module, responsible for regulating and controlling the temperature inside the energy storage device to ensure that the battery module operates within an appropriate temperature range;

[0020] A3: Power meter conversion module, responsible for energy conversion and exchange between the energy storage system and the external grid or load, converting the DC power stored in the battery module into AC power, or vice versa, to meet different power needs;

[0021] A4: Control module, responsible for communication and control between modules within the energy storage system;

[0022] The input ends of the battery module, the thermal management module and the power conversion membrane block are all electrically connected to the output end of the control module.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention provides a cooling unit, an auxiliary unit and a drying unit. An electric fan drives air into the inner cavity of the connecting pipe to perform heat exchange with the air in the inner cavity of the cabinet through the coolant in the circulation pipe, thereby reducing the temperature inside the cabinet. The heat sink increases the capacity of the bottom of the battery module. In cooperation with the cooling unit, the heat dissipation capacity of the battery module can be increased, thereby ensuring that the battery module operates at an appropriate temperature. The desiccant dries the air entering the connecting pipe, thereby keeping the air inside the cabinet dry, avoiding contact between the battery module and water in the air, thereby ensuring the normal operation of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the U-shaped block of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the electric fan and water pump of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the arrangement of the circulation pipes of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the auxiliary unit of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the drying mechanism of the present invention;

[0031] Figure 7This is a flow chart of the energy storage system of the present invention.

[0032] In the figure: 1. Main body; 11. Cabinet; 12. Placement plate; 13. Battery module; 2. Cooling mechanism; 21. Cooling unit; 2101. Water tank; 2102. Connecting pipe; 2103. Electric fan; 2104. Water pump; 2105. Water outlet pipe; 2106. Circulation pipe; 2107. Connecting frame; 2108. Foot pad; 2109. U-shaped block; 22. Auxiliary unit; 2201. Heating plate; 2202. Heat sink; 2203. Contact rod; 2204. Contact; 3. Drying mechanism; 31. Sliding hole; 32. Filter box; 33. Connecting block; 34. Positioning rod; 35. Docking rod; 36. Docking groove; 37. Sealing ring; 4. Battery module; 5. Thermal management module; 6. Power meter conversion module; 7. Control module. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-7 The present invention provides a technical solution: a new energy storage device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology, including a main body mechanism 1, characterized in that: the main body mechanism 1 includes a cabinet 11, a placement plate 12 is fixedly installed on the inner wall of the cabinet 11, a battery module 13 is placed on the top of the placement plate 12, and a cooling mechanism 2 is provided at the bottom of the cabinet 11;

[0036] The cooling mechanism 2 includes a cooling unit 21, which is arranged at the bottom of the cabinet 11 and is used to cool the hot air in the inner cavity of the cabinet 11;

[0037] The cooling unit 21 includes a water tank 2101, which is fixedly installed at the bottom of the cabinet 11. A connecting pipe 2102 is fixedly connected to one side of the cabinet 11. Both ends of the connecting pipe 2102 are fixedly connected to one side of the cabinet 11. An electric fan 2103 is fixedly installed on the inner wall of the connecting pipe 2102. A water pump 2104 is fixedly installed on the top of the water tank 2101. A water outlet pipe 2105 is fixedly connected to the top of the water tank 2101. One end of the water outlet pipe 2105 is fixedly connected to the input end of the water pump 2104. The output end of the water pump 2104 is fixedly connected to a circulation pipe 2106. The surface of the circulation pipe 2106 is wound around the surface of the connecting pipe 2102. One end of the circulation pipe 2106 passes through the inner wall of the cabinet 11 and extends to the outside of the cabinet 11. The circulation pipe 2106 is arranged in a serpentine shape on the inner wall of the cabinet 11, and one end of the circulation pipe 2106 is fixedly connected to the top of the cabinet 11.

[0038] A connecting frame 2107 is fixedly installed on one side of the cabinet 11, and the inner wall of the connecting frame 2107 is fixedly connected to the surface of the circulation pipe 2106;

[0039] There are four foot pads 2108 fixedly installed on the bottom of the water tank 2101.

[0040] A U-shaped block 2109 is fixedly mounted on the inner wall of the cabinet 11 , and the inner side of the U-shaped block 2109 contacts the surface of the circulation pipe 2106 .

[0041] The specific implementation of this embodiment is as follows: the water pump 2104 and the electric fan 2103 are started by an external power supply, and the coolant in the water tank 2101 can be transferred to the water outlet pipe 2105 by the water pump 2104, and then sent to the circulation pipe 2106 by the water outlet pipe 2105. The circulation pipe 2106 is stacked in a serpentine shape on the inner wall of the cabinet 11 to wrap the inner cavity of the cabinet 11, and heat exchange is performed with the air in the cabinet 11 to achieve preliminary cooling of the air in the cabinet 11. The rotation of the electric fan 2103 can drive the air inside the cabinet 11 into the inner cavity of the connecting pipe 2102, and the circulation pipe 2106 is wound around the surface of the connecting pipe 2102, thereby performing heat exchange on the air entering the inner cavity of the connecting pipe 2102, thereby achieving the cooling of the air in the connecting pipe 2102. The air in the cavity is cooled twice, and the cooled air will exit from the connecting pipe 2102 at the bottom and re-enter the inner cavity of the cabinet 11, thereby realizing the heat dissipation treatment of the heat generated by the battery module 13, ensuring that the battery module 13 works at a suitable temperature, and at the same time realizing the circulation of the air inside the cabinet 11, avoiding contact with the outside air, reducing the outside dust from entering the inner cavity of the cabinet 11, and ensuring the cleanliness of the cabinet 11. Among them, by raising the bottom of the water tank 2101 through the foot pad 2108, the contact area between the bottom of the water tank 2101 and the ground can be reduced, thereby reducing the corrosion of the bottom of the water tank 2101 by the ground, and the use of the support frame and the U-shaped block 2109 can fix the position of the circulation pipe 2106, thereby ensuring the stability of the circulation pipe 2106 when working.

[0042] Example 2

[0043] See also Figure 1-7 The present invention provides a technical solution: a new energy storage device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The cooling mechanism 2 includes an auxiliary unit 22. The auxiliary unit 22 is arranged at the bottom of the placement plate 12. The auxiliary unit 22 is used to increase the heat dissipation capacity of the battery module 13.

[0044] The auxiliary unit 22 includes a heating plate 2201, which is fixedly installed on the bottom of the placement plate 12. A heat sink 2202 is fixedly installed on the bottom of the heating plate 2201. The number of heat sinks 2202 is several. A contact rod 2203 is fixedly installed on the top of the heating plate 2201. One end of the contact rod 2203 passes through the top of the placement plate 12. A contact 2204 is fixedly installed on the top of the contact rod 2203. The top of the contact 2204 contacts the bottom of the battery module 13.

[0045] The specific implementation of this embodiment is as follows: by contacting the bottom of the battery module 13 with the contact 2204, heat exchange can be performed on the bottom of the battery module 13, so that the heat generated at the bottom of the battery module 13 is transmitted to the contact rod 2203 through the contact 2204, and then transmitted to the heating plate 2201 and the heat sink 2202 by the contact rod 2203. The air inside the cabinet 11 is driven to flow by the electric fan 2103, and the heat dissipation area is increased by the heat sink 2202, thereby increasing the heat dissipation capacity of the bottom of the battery module 13, thereby assisting the cooling unit 21 in cooling the battery module 13.

[0046] Example 3

[0047] See also Figure 1-7 The present invention provides a technical solution: a new energy storage device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A drying mechanism 3 is provided on the surface of the cooling unit 21. The drying mechanism 3 is used to dry the air in the inner cavity of the cabinet 11. The drying mechanism 3 is used in conjunction with the circulation mechanism.

[0048] The drying mechanism 3 includes a sliding hole 31, the inner cavity of which is slidably connected to a filter box 32, the inner cavity of which contains a desiccant, a connecting block 33 fixedly mounted on the surface of the connecting pipe 2102, the surface of the connecting block 33 being in contact with the surface of the filter box 32, a positioning rod 34 being threadedly connected to the inner wall of the filter box 32, and the surface of the positioning rod 34 being threadedly connected to the inner wall of the connecting block 33;

[0049] A docking rod 35 is fixedly mounted on the surface of the filter box 32, and a docking groove 36 is provided on the surface of the connecting block 33. The surface of the docking rod 35 is slidably connected to the inner cavity of the docking groove 36;

[0050] A sealing ring 37 is fixedly mounted on the inner side of the filter box 32 , and the surface of the sealing ring 37 is in close contact with the inner wall of the sliding hole 31 .

[0051] The specific implementation of this embodiment is as follows: when the cabinet 11 is working in a humid air environment, the air inside the cabinet 11 is transported to the inner cavity of the connecting pipe 2102 by the electric fan 2103, and then passes through the filter box 32 and contacts the desiccant in the inner cavity of the filter box 32. The desiccant absorbs the water in the air, so that the air discharged from the connecting pipe 2102 remains dry, and the air circulates inside the cabinet 11, thereby achieving the drying process of the air inside the cabinet 11 and ensuring the normal operation of the battery module 13. The desiccant needs to be replaced regularly. By rotating the positioning rod 34, the positioning rod 34 cancels the threaded connection with the connecting block 33, and the filter box 32 is pulled to move the filter box 32 out of the inner cavity of the sliding hole 31, thereby realizing the replacement of the desiccant. When reinstalling, the filter box 32 can be accurately installed through the sliding connection between the docking rod 35 and the docking groove 36. At the same time, the sealing ring 37 contacts the inner wall of the sliding hole 31 to increase the sealing between the filter box 32 and the connecting pipe 2102 to prevent the entry of outside air.

[0052] Example 4

[0053] See also Figure 1-7 , the present invention provides a technical solution: an energy storage system, the present invention makes corresponding improvements to the technical problems mentioned in the background technology, the battery module 13 includes a battery module 4, a thermal management module 5, a power meter conversion module 6 and a control module 7;

[0054] A1: Battery module 4, the core energy storage unit, is composed of multiple single cells connected in series and parallel. It is responsible for storing electrical energy and is connected to an external power source or load through connecting lines.

[0055] A2: Thermal management module 5, responsible for regulating and controlling the temperature inside the energy storage device to ensure that the battery module 13 operates within an appropriate temperature range;

[0056] A3: Power meter conversion module 6, responsible for energy conversion and exchange between the energy storage system and the external grid or load, converting the DC power stored in the battery module 4 into AC power, or vice versa, to meet different power requirements;

[0057] A4: Control module 7, responsible for communication and control between modules within the energy storage system;

[0058] The input ends of the battery module 4 , the thermal management module 5 and the power conversion membrane block are all electrically connected to the output end of the control module 7 . Specific implementation method:

[0060] Battery module 4: As the core energy storage unit, it is composed of multiple single cells connected in series and parallel. It is responsible for storing electrical energy and is connected to an external power source or load through connecting lines to realize the storage and release of electrical energy;

[0061] The thermal management module 5 is responsible for controlling the internal operating temperature of the battery module 13 to ensure that the battery module 4 operates at an appropriate temperature. The electric fan 2103 drives air into the inner cavity of the connecting pipe 2102 to exchange heat with the coolant in the circulation pipe 2106 with the air in the inner cavity of the cabinet 11, thereby reducing the temperature inside the cabinet 11 and ensuring that the battery module 4 operates at an appropriate temperature.

[0062] The power meter conversion module 6 is responsible for energy conversion and exchange between the energy storage system and the external power grid or load. This module converts the DC power stored in the battery module 4 into AC power, or vice versa, to meet different power requirements. The performance of the power conversion module directly affects the energy conversion efficiency and output stability of the energy storage system.

[0063] The control module 7, serving as the brain of the battery module 13, is responsible for communication and control between the various modules within the energy storage system. It receives data from the battery module 4, thermal management module 5, power conversion module, etc., and manages and dispatches the energy storage system according to a preset control strategy to ensure stable operation and efficient management of the energy storage system.

[0064] The input terminals of the battery module 4, thermal management module 5, and power conversion module are all electrically connected to the output terminal of the control module 7. This connection method ensures that the control module 7 can directly control and adjust each submodule, realizing centralized management and control of the entire energy storage system.

[0065] Working principle: The water pump 2104 and the electric fan 2103 are started by an external power supply. The water pump 2104 can transfer the coolant in the water tank 2101 to the water outlet pipe 2105, and then the water outlet pipe 2105 sends it to the circulation pipe 2106. The circulation pipe 2106 is stacked in a serpentine shape on the inner wall of the cabinet 11 to wrap the inner cavity of the cabinet 11. The heat exchange with the air in the cabinet 11 is carried out to achieve the preliminary cooling treatment of the air in the cabinet 11. The rotation of the electric fan 2103 can drive the air inside the cabinet 11 into the inner cavity of the connecting pipe 2102. The circulation pipe 2106 is wrapped around the surface of the connecting pipe 2102, thereby performing heat exchange on the air entering the inner cavity of the connecting pipe 2102, thereby achieving The air in the inner cavity of the connecting pipe 2102 is cooled for the second time. The cooled air will exit the connecting pipe 2102 at the bottom and re-enter the inner cavity of the cabinet 11, thereby achieving heat dissipation of the heat generated by the battery module 13, ensuring that the battery module 13 works at a suitable temperature, and at the same time, the air inside the cabinet 11 can be recycled to avoid contact with the outside air, reduce the entry of external dust into the inner cavity of the cabinet 11, and ensure that the cabinet 11 is clean and tidy. Among them, the bottom of the water tank 2101 is raised by the foot pad 2108, which can reduce the contact area between the bottom of the water tank 2101 and the ground, thereby reducing the corrosion of the bottom of the water tank 2101 by the ground. By using the support frame and the U-shaped block 2109, the circulation pipe 210 6 is fixed to ensure the stability of the circulation pipe 2106 during operation. The contact 2204 contacts the bottom of the battery module 13, so that heat exchange can be performed on the bottom of the battery module 13, so that the heat generated at the bottom of the battery module 13 is transmitted to the contact rod 2203 through the contact 2204, and then transmitted to the heating plate 2201 and the heat sink 2202 by the contact rod 2203. The air inside the cabinet 11 is driven to flow by the electric fan 2103, and the heat dissipation area increased by the heat sink 2202 increases the heat dissipation capacity of the bottom of the battery module 13, thereby assisting the cooling unit 21 in cooling the battery module 13. When the cabinet 11 is working in a humid air environment, the air inside the cabinet 11 is cooled by the electric fan 2103. After the air is transported to the inner cavity of the connecting pipe 2102, it will pass through the filter box 32 and come into contact with the desiccant in the inner cavity of the filter box 32. The desiccant absorbs the water in the air, so that the air discharged from the connecting pipe 2102 remains dry. The air circulates through the inside of the cabinet 11, thereby achieving the drying treatment of the air inside the cabinet 11 and ensuring the normal operation of the battery module 13. The desiccant needs to be replaced regularly. By rotating the positioning rod 34, the positioning rod 34 cancels the threaded connection with the connecting block 33, and the filter box 32 is pulled to move the filter box 32 out of the inner cavity of the sliding hole 31, thereby achieving the replacement of the desiccant. When reinstalling, the sliding connection between the docking rod 35 and the docking slot 36 can achieve accurate installation of the filter box 32.At the same time, the sealing ring 37 contacts the inner wall of the sliding hole 31, thereby increasing the sealing performance between the filter box 32 and the connecting pipe 2102 and preventing the entry of external air.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new energy storage device, comprising a main body (1), characterized in that: The main body mechanism (1) comprises a cabinet (11), a placement plate (12) is fixedly mounted on the inner wall of the cabinet (11), a battery module (13) is placed on the top of the placement plate (12), and a cooling mechanism (2) is arranged at the bottom of the cabinet (11); The cooling mechanism (2) comprises a cooling unit (21), wherein the cooling unit (21) is arranged at the bottom of the cabinet (11), and the cooling unit (21) is used to cool the hot air in the inner cavity of the cabinet (11); The cooling mechanism (2) comprises an auxiliary unit (22), wherein the auxiliary unit (22) is arranged at the bottom of the placement plate (12), and the auxiliary unit (22) is used to increase the heat dissipation capacity of the battery module (13); A drying mechanism (3) is provided on the surface of the cooling unit (21), and the drying mechanism (3) is used to dry the air in the inner cavity of the cabinet (11). The drying mechanism (3) is used in conjunction with a circulation mechanism.

2. A new energy storage device according to claim 1, characterized in that: The cooling unit (21) comprises a water tank (2101), the water tank (2101) is fixedly mounted on the bottom of the cabinet (11), one side of the cabinet (11) is fixedly connected to a connecting pipe (2102), both ends of the connecting pipe (2102) are fixedly connected to one side of the cabinet (11), an electric fan (2103) is fixedly mounted on the inner wall of the connecting pipe (2102), a water pump (2104) is fixedly mounted on the top of the water tank (2101), and a water outlet pipe (2105) is fixedly connected to the top of the water tank (2101). One end of the water outlet pipe (2105) is fixedly connected to the input end of the water pump (2104); the output end of the water pump (2104) is fixedly connected to a circulation pipe (2106); the surface of the circulation pipe (2106) is wound around the surface of the connecting pipe (2102); one end of the circulation pipe (2106) penetrates the inner wall of the cabinet (11) and extends to the outside of the cabinet (11); the circulation pipe (2106) is arranged in a serpentine shape on the inner wall of the cabinet (11); and one end of the circulation pipe (2106) is fixedly connected to the top of the cabinet (11).

3. A new energy storage device according to claim 1, characterized in that: The auxiliary unit (22) comprises a heating plate (2201), wherein the heating plate (2201) is fixedly mounted on the bottom of the placement plate (12), a heat sink (2202) is fixedly mounted on the bottom of the heating plate (2201), and the number of the heat sinks (2202) is several, a contact rod (2203) is fixedly mounted on the top of the heating plate (2201), one end of the contact rod (2203) passes through the top of the placement plate (12), a contact (2204) is fixedly mounted on the top of the contact rod (2203), and the top of the contact (2204) contacts the bottom of the battery module (13).

4. A new energy storage device according to claim 2, characterized in that: The drying mechanism (3) comprises a sliding hole (31), the inner cavity of the sliding hole (31) is slidably connected to a filter box (32), the inner cavity of the filter box (32) is provided with a desiccant, a connecting block (33) is fixedly mounted on the surface of the connecting pipe (2102), the surface of the connecting block (33) is in contact with the surface of the filter box (32), the inner wall of the filter box (32) is threadedly connected to a positioning rod (34), and the surface of the positioning rod (34) is threadedly connected to the inner wall of the connecting block (33).

5. A new energy storage device according to claim 4, characterized in that: A docking rod (35) is fixedly mounted on the surface of the filter box (32), a docking groove (36) is provided on the surface of the connecting block (33), and the surface of the docking rod (35) is slidably connected to the inner cavity of the docking groove (36).

6. A new energy storage device according to claim 2, characterized in that: A connecting frame (2107) is fixedly mounted on one side of the cabinet (11), and the inner wall of the connecting frame (2107) is fixedly connected to the surface of the circulation pipe (2106).

7. A new energy storage device according to claim 2, characterized in that: A foot pad (2108) is fixedly installed on the bottom of the water tank (2101), and the number of the foot pads (2108) is four.

8. A new energy storage device according to claim 4, characterized in that: A sealing ring (37) is fixedly mounted on the inner side of the filter box (32), and the surface of the sealing ring (37) is in close contact with the inner wall of the sliding hole (31).

9. A new energy storage device according to claim 2, characterized in that: A U-shaped block (2109) is fixedly mounted on the inner wall of the cabinet (11), and the inner side of the U-shaped block (2109) is in contact with the surface of the circulation pipe (2106).

10. An energy storage system according to any one of claims 1 to 9, characterized in that: The battery module (13) comprises a battery module (4), a thermal management module (5), a power meter conversion module (6) and a control module (7); A1: Battery module (4), the core energy storage unit, is composed of multiple single cells connected in series and parallel, is responsible for storing electrical energy, and is connected to an external power source or load through a connecting line; A2: a thermal management module (5), which is responsible for regulating and controlling the temperature inside the energy storage device to ensure that the battery module (13) operates within a suitable temperature range; A3: a power meter conversion module (6), which is responsible for energy conversion and exchange between the energy storage system and the external power grid or load, and converts the DC power stored in the battery module (4) into AC power, or converts AC power into DC power, to meet different power requirements; A4: control module (7), responsible for communication and control between modules within the energy storage system; The input ends of the battery module (4), the thermal management module (5) and the power conversion membrane block (6) are all electrically connected to the output end of the control module (7).

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