Energy storage liquid cooling box body with high heat dissipation efficiency
By adopting an integrated thermal management solution of liquid-cooled base plate, side liquid-cooled plate and aerogel insulation plate in the energy storage liquid-cooled box, efficient cooling and safety protection of large-capacity batteries are achieved, solving the problem of heat transfer in the battery cells and improving the heat dissipation capacity and safety of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-20
AI Technical Summary
The cooling effect of existing liquid cooling systems cannot meet the rapid heat dissipation requirements of large-capacity single-cell batteries, making it difficult for heat to be transferred quickly inside the cell, which can easily lead to heat accumulation and safety hazards.
Design a high heat dissipation efficiency liquid-cooled energy storage box, which adopts a liquid-cooled bottom plate and side liquid-cooled plate structure, combined with aerogel insulation board and heat pipe to form an integrated thermal management solution. The coolant is circulated in all directions through liquid-cooled pipelines, and is equipped with safety devices such as fire detectors and pressure relief valves.
It improves the cooling effect of the battery cell, prevents high-temperature damage, improves temperature uniformity, enhances structural strength and safety, and prevents the domino effect of thermal runaway.
Smart Images
Figure CN224020808U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of energy storage boxes, in particular to an energy storage liquid cooling box with high heat dissipation efficiency. BACKGROUND
[0002] With the rapid development of the new energy industry, especially the wide application of new energy vehicles and energy storage power stations, the demand for energy density of battery systems is increasing. In order to meet this demand, developing large-capacity single batteries has become one of the important development directions. However, the continuous increase of the volume and energy of the battery cells makes the temperature uniformity between the battery cells a difficult problem to be solved.
[0003] In the process of increasing the capacity of the battery, the problem of battery thermal runaway is becoming more and more prominent. The heat in the center of the battery cell is difficult to quickly transfer out, resulting in the formation of heat aggregation in the battery pack after grouping, which easily leads to safety hazards such as fire and explosion. In order to effectively solve this problem, the existing battery box is usually equipped with a cooling system.
[0004] Among many cooling technologies, the liquid cooling method stands out due to its obvious advantages. Liquid cooling technology can effectively control and reduce the temperature of the battery cell, improve the uniformity of the temperature zone, and thus enhance the service life and safety performance of the battery cell. In addition, the liquid cooling method can also reduce the cost and improve the production efficiency to a certain extent.
[0005] Common energy storage battery boxes usually use the bottom cold plate to contact the bottom surface of the battery cell to achieve cooling. However, under the background of continuously developing large-capacity single batteries, the cooling capacity of this cooling method cannot fully meet the demand. Specifically, the cooling effect of the existing liquid cooling system has limitations and cannot effectively deal with the problem that the heat in the battery cell is difficult to quickly transfer. CONTENT OF THE UTILITY MODEL
[0006] In order to solve the above technical problems, the present application provides an energy storage liquid cooling box with high heat dissipation efficiency, which has the advantages of ensuring the cooling effect of the battery cell and preventing the occurrence of high-temperature damage to the battery cell.
[0007] In order to achieve the above purpose, the technical scheme of the present application is as follows:
[0008] An energy storage liquid cooling box with high heat dissipation efficiency, comprising a liquid cooling bottom plate and an upper cover arranged on the liquid cooling bottom plate;
[0009] A plurality of side liquid cooling plates are arranged on the liquid cooling bottom plate at equal intervals, and a placement groove for placing the battery cell is formed between adjacent side liquid cooling plates. A cooling channel is arranged in each liquid cooling plate, and a pair of liquid cooling interfaces is arranged on the liquid cooling plates at both ends of the cooling channel. A plurality of liquid cooling pipelines for mutual series connection are arranged between a plurality of liquid cooling plates.
[0010] The liquid cooling bottom plate is provided with a cooling cavity, water inlets and outlets are arranged at both ends of the cooling cavity, and a pair of water supply openings for supplying water to the side liquid cooling plate are arranged at the top end of the liquid cooling bottom plate. The two water supply openings are connected with the liquid cooling interfaces at both ends of the whole side liquid cooling plate in series through liquid cooling pipelines.
[0011] The above technical solutions are implemented. The water inlets and outlets are circumscribed by refrigerant, so that the refrigerant circulates in the cooling cavity, thereby realizing cooling of the electric core mounted thereon to reduce the occurrence of high temperature. At the same time, the liquid cooling pipeline is connected with the liquid cooling interface through the quick connector, so that the plurality of side liquid cooling plates are connected in series through the liquid cooling pipeline to form a cooling flow channel, so that the cooling liquid can circulate from one liquid cooling interface at both ends of the whole side liquid cooling plate to the other liquid cooling interface at the tail end. The liquid cooling bottom plate is provided with a pair of water supply openings for supplying water to the side liquid cooling plate at the top end. The two water supply openings are connected with the liquid cooling interfaces at both ends of the whole side liquid cooling plate in series through liquid cooling pipelines, that is, the cooling liquid in the liquid cooling bottom plate can be supplied into the whole side liquid cooling plate through the water supply openings, thereby realizing circulation of the whole liquid cooling agent to improve the cooling effect of the electric core and prevent the occurrence of high-temperature damage to the electric core.
[0012] As a preferred scheme of the present application, a plurality of aerogel sheets for separating the electric cores are arranged at equal intervals in the placing groove.
[0013] As a preferred scheme of the present application, the aerogel sheet is arranged in a C shape.
[0014] The above technical solutions are implemented. By alternately arranging the aerogel heat insulation plate and the heat pipe in the battery module, an integrated thermal management scheme can be formed to improve the heat dissipation capacity of the battery pack and improve the uniformity of the internal temperature distribution. When the electric core is in thermal runaway, the aerogel can delay or block the heat transfer to the adjacent electric core, preventing the domino effect of thermal runaway.
[0015] As a preferred scheme of the present application, a plurality of fixed end plates are arranged at both ends of the measuring liquid cooling plate, the fixed end plates are screwed and fixed on the liquid cooling bottom plate, and the side liquid cooling plate is fixed on the fixed end plate by screws.
[0016] In the installation process, the battery cell and the aerogel sheet are alternately placed on the liquid cooling bottom plate in sequence, so as to ensure the relative position of the battery cell and the aerogel sheet; then, the side liquid cooling plate is installed and fixed gradually along the side edge of the liquid cooling bottom plate, so as to be tightly attached to the liquid cooling bottom plate; when all the battery cells and the aerogel sheets are completely placed, the end plate is used to seal and fix the end of the whole structure, and the side liquid cooling plate and the liquid cooling bottom plate are firmly connected through the fastener, so as to form an integrated structure; through the above steps, not only the precise assembly of the battery cell and the aerogel sheet is realized, but also the structural strength and stability of the whole module are significantly improved, so as to ensure the reliability and safety of the module in use.
[0017] As a preferred scheme of the present application, the upper cover is provided with a battery management system cluster control unit, a fire detector, a piercing valve, a pressure relief valve, a power connector, a communication connector and a manual maintenance switch.
[0018] The above technical scheme is realized, that is, the temperature of the battery cell is detected by the fire detector, when the temperature exceeds a safety value, the piercing valve and the pressure relief valve are controlled by the battery management system cluster control unit to perform pressure relief and other safety operations, and an alarm is generated through the communication connector. At the same time, the manual maintenance switch can cut off the power connector to maintain the battery cell. The upper cover is provided with an inspection window for observing whether the internal electrical components are normal.
[0019] As a preferred scheme of the present application, the upper cover is provided with an inspection window.
[0020] The above technical scheme is realized to observe whether the internal electrical components are normal.
[0021] In summary, the present application has at least one of the following beneficial technical effects:
[0022] 1. The water inlet and the water outlet are connected with refrigerant, so that the refrigerant circulates in the cooling cavity, and the battery cell installed above is cooled to reduce the occurrence of high temperature; meanwhile, the liquid cooling pipeline is connected with the liquid cooling interface through the quick connector, so that the plurality of side liquid cooling plates are connected in series through the liquid cooling pipeline to form a cooling flow channel, so that the cooling liquid can circulate from one liquid cooling interface at the two ends of the whole side liquid cooling plate to the other liquid cooling interface at the tail end, and a pair of water supply interfaces for supplying water to the side liquid cooling plate are arranged at the top end of the liquid cooling bottom plate, and the two water supply interfaces are connected with the liquid cooling interfaces at the two ends of the plurality of side liquid cooling plates in series through the liquid cooling pipeline, that is, the cooling liquid in the liquid cooling bottom plate can be supplied into the whole side liquid cooling plate through the water supply interface, so as to realize the circulation of the whole liquid cooling agent to improve the cooling effect of the battery cell and prevent the battery cell from being damaged by high temperature;
[0023] 2. By alternately arranging aerogel heat insulation plates and heat pipes in the battery module, an integrated thermal management scheme can be formed to improve the heat dissipation capacity of the battery pack and improve the uniformity of the internal temperature distribution. When the battery cell experiences thermal runaway, the aerogel can delay or block the heat transfer to the adjacent battery cell, preventing the domino effect of thermal runaway;
[0024] 3. First, the battery cells and aerogel sheets are alternately placed on the liquid cooling bottom plate, ensuring the accurate relative position of the battery cells and aerogel sheets; then, the fixed side liquid cooling plate is gradually installed along the side edge of the liquid cooling bottom plate, tightly adhering to the liquid cooling bottom plate; when all the battery cells and aerogel sheets are completely placed, the end of the entire structure is sealed and fixed using the fixed end plate, and the side liquid cooling plate and the liquid cooling bottom plate are firmly connected through fasteners, forming a whole structure; through the above steps, not only the precise assembly of the battery cells and the aerogel sheets is realized, but also the structural strength and stability of the entire module are significantly improved, ensuring the reliability and safety of the module during use. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0026] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0027] Figure 2 It is a schematic diagram of the internal structure of the upper cover of the present application.
[0028] Figure 3 It is a schematic diagram of the liquid cooling plate arrangement of the present application.
[0029] Figure 4 It is a schematic diagram of the liquid cooling plate assembly of the present application.
[0030] Figure 5 It is a schematic diagram of the battery cell arrangement structure of the present application.
[0031] Figure 6 It is a schematic diagram of the part assembly of the present application.
[0032] Reference numerals: 1. Battery cell; 2. Aerogel sheet; 3. Liquid-cooled base plate; 4. Side liquid-cooled plate; 41. Liquid-cooled interface; 5. Fixed end plate; 6. Liquid-cooled piping; 7. Water inlet; 8. Water outlet; 9. Maintenance / modification; 10. Fire detector; 11. Fire puncture valve; 12. Pressure relief valve; 13. Communication connector; 14. Manual maintenance switch; 15. Power connector; 16. Battery management system control unit; 17. Top cover; 18. Inspection window; 19. Water supply port. Detailed Implementation
[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.
[0034] This application discloses a high-efficiency heat dissipation liquid-cooled box for energy storage. (Refer to...) Figure 1 , 4 5. The high-efficiency heat dissipation liquid-cooled energy storage enclosure includes a liquid-cooled base plate 3 and an upper cover 17 covering the liquid-cooled base plate 3. The battery cell 1 is fixed to the liquid-cooled base plate 3 and protected by the snap-fit upper cover 17. A cooling chamber is provided in the liquid-cooled base plate 3. In this application, the cooling chamber is U-shaped (not shown in the figure). (Refer to...) Figure 3 The cooling chamber is equipped with an inlet 7 and an outlet 8 at both ends. Refrigerant is connected to the inlet 7 and outlet 8, so that the refrigerant circulates in the cooling chamber, thereby cooling the battery cell 1 installed above it to reduce the occurrence of high temperature.
[0035] Referring to 3-4, a number of equally spaced side liquid cooling plates 4 are provided on the liquid cooling base plate 3. Placement slots for placing the power supply cell 1 are formed between adjacent side liquid cooling plates 4, so that the power supply cell 1 is evenly distributed in each placement slot, and the periphery and bottom of the power supply cell 1 are in contact with the liquid cooling base plate 3 and the side liquid cooling plates 4 for heat transfer and heat dissipation. Each side liquid cooling plate 4 is provided with a cooling channel. Each side liquid cooling plate 4 at both ends of the cooling channel is provided with a pair of liquid cooling interfaces 41. Several liquid cooling pipes 6 are arranged between several side liquid cooling plates 4 for interconnection. The liquid cooling pipes 6 are connected to the liquid cooling interfaces 41 through quick connectors, so that several side liquid cooling plates 4 are connected in series through the liquid cooling pipes 6 to form a cooling flow channel. This allows the coolant to circulate from one liquid cooling interface 41 at both ends of the overall side liquid cooling plate 4 to the other liquid cooling port at the tail end for discharge. The top of the liquid cooling base plate 3 is provided with a pair of water supply ports 19 for supplying water to the side liquid cooling plates 4. The two water supply ports 19 are respectively connected to the liquid cooling interfaces 41 at both ends of the several connected side liquid cooling plates 4 through the liquid cooling pipes 6. That is, the coolant in the liquid cooling base plate 3 can be supplied to the entire side liquid cooling plate 4 through the water supply ports 19, thereby realizing the overall liquid coolant circulation to improve the cooling effect on the battery cell 1 and prevent the battery cell 1 from being damaged by high temperature.
[0036] Reference Figures 4-5The aeration gel sheet 2 is arranged in the form of C. When the battery cells 1 are arranged, the battery cells 1 are placed in front of the C-shaped aeration gel sheet 2. By alternately arranging the aeration gel heat insulation plates and the heat pipes in the battery module, an integrated heat management scheme can be formed, the heat dissipation capacity of the battery pack is improved, and the uniformity of the internal temperature distribution is improved. When the battery cells 1 are in thermal runaway, the aeration gel can delay or block the heat transfer to the adjacent battery cells 1, preventing the domino effect of thermal runaway. The liquid cooling plate 4 is fixed on the fixed end plate 5 by screws. During the installation process, the battery cells 1 and the aeration gel sheets 2 are alternately placed on the liquid cooling bottom plate 3 in sequence, and the relative positions of the battery cells 1 and the aeration gel sheets 2 are ensured to be accurate. Then, the fixed side liquid cooling plate 4 is gradually installed along the side edge of the liquid cooling bottom plate 3, and is tightly attached to the liquid cooling bottom plate 3. When all the battery cells 1 and the aeration gel sheets 2 are completely placed, the end of the whole structure is sealed and fixed by using the fixed end plate 5, and the side liquid cooling plate 4 and the liquid cooling bottom plate 3 are firmly connected by fasteners, forming a whole structure. Through the above steps, not only the precise assembly of the battery cells 1 and the aeration gel sheets 2 is realized, but also the structural strength and stability of the whole module are significantly improved, ensuring the reliability and safety of the module during use.
[0037] Referring to Figure 1 and 6 The upper cover 17 is provided with a battery management system control unit 16, a fire detector 10, a piercing valve, a pressure relief valve 12, a power connector 15, a communication connector 13, and a manual maintenance switch 14. That is, the temperature of the battery cell 1 is detected by the fire detector 10, and when the temperature exceeds the safety value, the piercing valve and the pressure relief valve 12 are controlled by the battery management system control unit 16 to perform safety operations such as pressure relief, and an alarm is generated through the communication connector 13. At the same time, the manual maintenance switch can cut off the power connector 15 to maintain the battery cell 1. The upper cover 17 is provided with an inspection window 18 for observing whether the internal electrical components are normal.
[0038] The implementation principle of the energy storage liquid cooling box with high heat dissipation efficiency is that a plurality of side liquid cooling plates 4 are connected in series by liquid cooling pipelines 6 to form a cooling flow channel, so that the cooling liquid can circulate from one liquid cooling interface 41 at both ends of the whole side liquid cooling plate 4 to the other liquid cooling interface at the tail end, and a pair of water supply interfaces 19 are arranged at the top end of the liquid cooling bottom plate 3 to supply water to the side liquid cooling plate 4. The two water supply interfaces 19 are connected to the liquid cooling interfaces 41 at both ends of the whole side liquid cooling plate 4 connected in series through the liquid cooling pipelines 6, that is, the cooling liquid in the liquid cooling bottom plate 3 can be supplied into the whole side liquid cooling plate 4 through the water supply interfaces 19, so as to realize the circulation of the whole liquid cooling agent and improve the cooling effect of the battery cells 1, preventing the occurrence of high-temperature damage to the battery cells 1.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-efficiency heat dissipation liquid-cooled tank for energy storage, characterized in that: Includes a liquid-cooled base plate (3) and an upper cover (17) covering the liquid-cooled base plate (3); The liquid-cooled base plate (3) is provided with a plurality of equally spaced side liquid-cooled plates (4), and a placement groove for placing the power supply core (1) is formed between adjacent side liquid-cooled plates (4). Each side liquid-cooled plate (4) is provided with a cooling channel, and a pair of liquid-cooled interfaces (41) are provided on the side liquid-cooled plates (4) at both ends of the cooling channel. A plurality of liquid-cooled pipes (6) for interconnection are provided between the plurality of side liquid-cooled plates (4). The liquid-cooled base plate (3) is provided with a cooling chamber. The cooling chamber is provided with an inlet (7) and an outlet (8) at both ends. The top of the liquid-cooled base plate (3) is provided with a pair of water supply ports (19) for supplying water to the side liquid-cooled plates (4). The two water supply ports (19) are respectively connected to the liquid-cooled interfaces (41) at both ends of a plurality of side liquid-cooled plates (4) connected in series through liquid-cooled pipes (6).
2. The high heat dissipation efficiency liquid-cooled storage tank according to claim 1, characterized in that: The placement slot is provided with several aerogel sheets (2) at equal intervals for separating the battery cells (1).
3. The high heat dissipation efficiency liquid-cooled tank for energy storage according to claim 2, characterized in that: The aerogel sheet (2) is arranged in a C-shape.
4. The high heat dissipation efficiency liquid-cooled energy storage tank according to claim 1, characterized in that: Several of the side liquid cooling plates (4) are provided with fixed end plates (5) at both ends. The fixed end plates (5) are screwed and fixed on the liquid cooling base plate (3). The side liquid cooling plates (4) are fixed on the fixed end plates (5) by screws.
5. The high heat dissipation efficiency liquid-cooled energy storage tank according to claim 1, characterized in that: The top cover (17) is equipped with a battery management system control unit (16), a fire detector (10), a puncture valve, a pressure relief valve (12), a power connector (15), a communication connector (13), and a manual maintenance switch (14).
6. The high heat dissipation efficiency liquid-cooled storage tank according to claim 1, characterized in that: The top cover (17) is provided with an inspection window (18).