An energy storage converter device and energy storage system
By introducing liquid-cooled plate heat exchangers, air-water heat exchangers, and inductive heat exchangers into energy storage converters, combined with liquid-cooled pipes and heat dissipation holes, the high cost problem caused by the complex structure of liquid cooling schemes for energy storage converters is solved, achieving efficient heat exchange and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN NEW ELECTRIC TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing liquid cooling solutions for energy storage converters are costly due to their complex structure.
The system employs a liquid-cooled plate heat exchanger, a water-cooled heat exchanger, an inductive heat exchanger, and liquid-cooled pipes. It combines a liquid-cooled plate, a first liquid-cooled device, and a second liquid-cooled device to exchange heat using coolant. Heat dissipation holes are provided on the power board, and a cooling fan is used to promote airflow, thus simplifying the liquid-cooling structure.
It achieves efficient heat exchange and reduces the cost of energy storage converter equipment.
Smart Images
Figure CN224305645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage equipment technology, specifically to an energy storage converter and an energy storage system. Background Technology
[0002] The Power Conversion System (PCS) is the core equipment of an energy storage system. It plays a crucial role in bidirectional power conversion and control, connecting the battery energy storage system with the power grid / load. It is the core execution unit for enabling the flexible operation of the energy storage system.
[0003] With the development of the energy storage industry, especially the explosive growth of industrial and commercial energy storage, customers are increasingly demanding higher power density per unit volume for various energy storage modules. Energy storage converters are gradually moving towards liquid cooling and high integration. However, traditional liquid cooling technology suffers from high costs due to its complex structure. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an energy storage converter and energy storage system, which solves the technical problem that the liquid cooling solution of the existing energy storage converter has a high cost due to its complex structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides an energy storage converter, including a liquid-cooled plate heat exchanger, a fan-water heat exchanger, an inductive heat exchanger, and a liquid-cooled pipe. The liquid-cooled plate heat exchanger includes a first power plate, a second power plate, and a liquid-cooled plate, which is disposed between the first and second power plates. Both the first and second power plates have heat dissipation holes. The fan-water heat exchanger is equipped with a cooling fan and a first liquid-cooling device. The inductive heat exchanger is equipped with a second liquid-cooling device. The liquid-cooled plate, the first liquid-cooling device, and the second liquid-cooling device are connected through the liquid-cooled pipe.
[0007] In one possible implementation, the energy storage converter further includes a housing, in which the liquid-cooled plate heat exchanger, the air-water heat exchanger, and the inductive heat exchanger are all disposed, and the housing is divided into a first cavity and a second cavity.
[0008] In one possible implementation, the liquid cooling plate at least partially abuts against the first power plate and the second power plate, respectively.
[0009] In one possible implementation, both the first power board and the second power board are provided with heat-generating devices, and the heat dissipation holes are located in areas on the first power board and the second power board where no heat-generating devices are provided.
[0010] In one possible implementation, the housing is provided with a liquid inlet connector and a liquid outlet connector, and the liquid cooling plate, the first liquid cooling device, and the second liquid cooling device are respectively connected to the liquid inlet connector and the liquid outlet connector through the liquid cooling pipe.
[0011] In one possible implementation, there are multiple first power boards, second power boards, and liquid cooling plates.
[0012] This utility model also provides an energy storage system, including the above-mentioned energy storage converter.
[0013] In one possible implementation, the energy storage system further includes a liquid-cooled air conditioner connected to the liquid-cooled pipeline.
[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model, by setting up a liquid-cooled plate heat exchange device, a water-cooled heat exchange device, an inductive heat exchange device, and liquid-cooled pipes, incorporates a liquid-cooled plate in the liquid-cooled plate heat exchange device, a first liquid-cooling device in the water-cooled heat exchange device, and a second liquid-cooling device in the inductive heat exchange device. The liquid-cooled pipes facilitate better heat exchange between the liquid-cooled plate, the first liquid-cooling device, and the second liquid-cooling device, thereby achieving better heat exchange for the energy storage converter through liquid cooling. Furthermore, heat dissipation holes are provided on the first and second power plates, and the cooling fan on the water-cooled heat exchange device promotes faster airflow along the heat dissipation holes, thus ensuring uniform heat distribution within the energy storage converter. This simplifies the liquid cooling structure of the energy storage converter, reducing costs and solving the technical problem of high costs due to the complex structure of existing liquid cooling solutions for energy storage converters.
[0015] In addition, a liquid cooling plate is provided between the first power plate and the second power plate. The liquid cooling plate is at least partially in contact with the first power plate and the second power plate. Through heat exchange, the coolant in the liquid cooling plate absorbs the heat of the first power plate and the second power plate, and transfers the heat with the flow of the coolant to achieve a cooling effect. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of an energy storage converter provided by this utility model.
[0017] Figure 2 A cross-sectional structural diagram of an energy storage converter provided for utility model.
[0018] Figure 3 A schematic diagram of the structure of a shell provided by this utility model.
[0019] Figure 4 This is an assembly diagram of an energy storage converter provided by the present invention.
[0020] Attached image labels:
[0021] 1. Energy storage converter; 11. Liquid-cooled plate heat exchanger; 111. First power plate; 112. Second power plate; 113. Liquid-cooled plate; 12. Air-water heat exchanger; 121. Cooling fan; 13. Inductive heat exchanger; 14. Shell; 141. First cavity; 142. Second cavity; 15. Liquid-cooled pipe; 161. Liquid inlet connector; 162. Liquid outlet connector. Detailed Implementation
[0022] To solve the above-mentioned technical problems, this utility model provides an energy storage converter and an energy storage system. The technical solution and embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.
[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0026] like Figure 1As shown, this utility model provides an energy storage converter 1, including a liquid-cooled plate heat exchanger 11, a fan-water heat exchanger 12, an inductive heat exchanger 13, and a liquid-cooled pipe 15. The liquid-cooled plate heat exchanger 11 includes a first power plate 111, a second power plate 112, and a liquid-cooled plate 113, which is disposed between the first power plate 111 and the second power plate 112. Both the first power plate 111 and the second power plate 112 are provided with heat dissipation holes. The fan-water heat exchanger 12 is provided with a cooling fan 121 and a first liquid-cooled device, and the inductive heat exchanger 13 is provided with a second liquid-cooled device. The liquid-cooled plate 113, the first liquid-cooled device, and the second liquid-cooled device are connected through the liquid-cooled pipe 15.
[0027] By configuring a liquid-cooled plate heat exchanger 11, a water-cooled air heat exchanger 12, an inductive heat exchanger 13, and a liquid-cooled pipe 15, a liquid-cooled plate 113 is installed in the liquid-cooled plate heat exchanger 11, a first liquid-cooled device is installed in the water-cooled air heat exchanger 12, and a second liquid-cooled device is installed in the inductive heat exchanger 13. The liquid-cooled pipe 15 facilitates better heat exchange between the liquid-cooled plate 113, the first liquid-cooled device, and the second liquid-cooled device, thereby achieving a better heat exchange effect for the energy storage converter through liquid cooling. Furthermore, a liquid-cooled plate 113 is installed between the first power plate 111 and the second power plate 112. The liquid-cooled plate 113 is at least partially in contact with the first power plate 111 and the second power plate 112. Through heat exchange, the coolant in the liquid-cooled plate 113 absorbs heat from the first power plate 111 and the second power plate 112, and transfers the heat with the flow of the coolant, thus achieving a cooling effect.
[0028] Heat dissipation holes are provided on the first power board 111 and the second power board 112. The cooling fan 121 on the air-water heat exchange device 12 can promote the accelerated flow of air along the heat dissipation holes, so that the heat inside the energy storage converter 1 can be evenly distributed. In turn, by simplifying the liquid cooling structure of the energy storage converter 1, the cost is reduced, and the technical problem of high cost caused by the complex structure of the liquid cooling scheme of the existing energy storage converter is solved.
[0029] In one alternative embodiment, the liquid cooling plate 113 may be made of copper, aluminum, or their alloys to improve thermal conductivity and corrosion resistance.
[0030] In one alternative embodiment, see Figure 2 The energy storage converter 1 also includes a housing 14, in which a liquid-cooled plate heat exchange device 11, a wind-water heat exchange device 12 and an inductive heat exchange device 13 are all disposed within the housing 14, and the housing 14 is divided into a first cavity 141 and a second cavity 142.
[0031] The cooling fan 121 can draw air upwards. Since the energy storage converter 1 is sealed, the air drawn into the second cavity 142 of the energy storage converter 1 will be drawn into the first cavity 141, and then flow through the internal components of the energy storage converter 1 located in the first cavity 141. Then, it returns to the second cavity 142 through the heat dissipation holes on the power board, thereby realizing the circulation of air in the energy storage converter 1, so as to keep the temperature in the energy storage converter 1 consistent. At the same time, it can accelerate the heat exchange between the energy storage converter 1 and the external environment.
[0032] In one alternative embodiment, the liquid cooling plate 113 is at least partially in contact with the first power plate 111 and the second power plate 112, respectively.
[0033] In one optional embodiment, both the first power board 111 and the second power board 112 are provided with heat-generating devices, and the heat dissipation holes are located in the areas of the first power board 111 and the second power board 112 where no heat-generating devices are provided. This arrangement can achieve a better heat dissipation effect by the air flowing through the heat dissipation holes without affecting the arrangement of the heat-generating devices on the power boards.
[0034] In one alternative embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the housing 14 is provided with a liquid inlet connector 161 and a liquid outlet connector 162. The liquid cooling plate 113, the first liquid cooling device and the second liquid cooling device are respectively connected to the liquid inlet connector 161 and the liquid outlet connector 162 through the liquid cooling pipe 15.
[0035] In one alternative embodiment, there are multiple first power boards 111, second power boards 112, and liquid cooling plates 113.
[0036] This utility model also provides an energy storage system, including an energy storage converter 1.
[0037] In one alternative embodiment, the energy storage system further includes a liquid-cooled air conditioner (not shown in the figure), which is connected to the liquid-cooled pipe 15. Specifically, the liquid-cooled air conditioner is connected to the inlet connector 161 and the outlet connector 162 to form a circulation loop.
[0038] like Figure 1 and Figure 4As shown, the coolant flows into the air-water heat exchanger 12 through the liquid cooling pipe 15, then through the liquid cooling plate 113 heat exchanger 11, and then into the inductive heat exchanger 13. Finally, it flows out to the liquid inlet of the liquid-cooled air conditioner through the outlet connector 162 of the energy storage converter 1. When the outside temperature is high, the liquid-cooled air conditioner operates in cooling mode. The cooled coolant flows into the energy storage converter 1, through the air-water heat exchanger 12, then through the liquid cooling plate 113 heat exchanger system, and then into the inductive heat exchanger 13. Finally, the coolant, which has heated up due to absorbing heat, flows out to the liquid inlet of the liquid-cooled air conditioner through the outlet connector 162 of the energy storage converter 1, is cooled again, and then output to the energy storage converter 1. This cycle repeats, allowing the coolant to carry away the heat emitted by the energy storage converter 1, thus lowering the temperature of the energy storage converter 1. When the outside temperature is low, the liquid-cooled air conditioner operates in heating mode, and the flow path of the coolant is the same as that of the cooling mode described above, so it will not be repeated here.
[0039] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.
Claims
1. An energy storage converter, characterized in that, It includes liquid-cooled plate heat exchangers, air-water heat exchangers, inductive heat exchangers, and liquid-cooled pipes; The liquid-cooled plate heat exchange device includes a first power plate, a second power plate and a liquid-cooled plate, wherein the liquid-cooled plate is disposed between the first power plate and the second power plate, and heat dissipation holes are provided on both the first power plate and the second power plate. The air-water heat exchange device is equipped with a cooling fan and a first liquid cooling device, and the inductive heat exchange device is equipped with a second liquid cooling device. The liquid cooling plate, the first liquid cooling device, and the second liquid cooling device are connected through the liquid cooling pipe.
2. The energy storage converter according to claim 1, characterized in that, The energy storage converter also includes a housing, in which the liquid-cooled plate heat exchanger, the air-water heat exchanger, and the inductive heat exchanger are all disposed, and the housing is divided into a first cavity and a second cavity.
3. The energy storage converter according to claim 1, characterized in that, The liquid cooling plate is at least partially in contact with the first power plate and the second power plate, respectively.
4. The energy storage converter according to claim 1, characterized in that, Both the first power board and the second power board are provided with heat-generating devices, and the heat dissipation holes are located in the areas of the first power board and the second power board where no heat-generating devices are provided.
5. The energy storage converter according to claim 2, characterized in that, The housing is provided with a liquid inlet connector and a liquid outlet connector. The liquid cooling plate, the first liquid cooling device and the second liquid cooling device are respectively connected to the liquid inlet connector and the liquid outlet connector through the liquid cooling pipe.
6. The energy storage converter according to claim 1, characterized in that, There are multiple first power boards, second power boards, and liquid cooling plates.
7. An energy storage system, characterized in that, Includes the energy storage converter as described in any one of claims 1 to 6.
8. The energy storage system according to claim 7, characterized in that, The energy storage system also includes a liquid-cooled air conditioner, which is connected to the liquid-cooled pipeline.