Battery energy storage refrigeration system

Abstract

The utility model relates to the field of battery boxes, in particular to a battery energy storage refrigerating system, which comprises a battery box, a battery pack and a lifting adjusting part, the lifting box is arranged in the battery box in a sliding mode, the lifting box is connected with the lifting adjusting piece, and the lifting box is provided with an air inlet hole and an air blowing hole facing the battery pack; and the cooling air supply assembly is connected with the air inlet hole through an air supply pipe extending into the inner cavity of the battery box. The battery energy storage refrigeration system provided by the utility model has the advantages of simple structure and convenience in adjustment, improves the overall heat dissipation efficiency of the battery pack, avoids accelerating the aging of the battery and shortening the service life of the battery due to overhigh local temperature of the battery box, and ensures the use efficiency of the battery energy storage refrigeration system.

Description

Technical Field

[0001] The utility model relates to the field of battery boxes, and in particular to a battery energy storage refrigeration system. Background Art

[0002] A battery energy storage cooling system is a technical solution for dissipating heat from battery energy storage systems. It aims to address the heat generated by large-capacity batteries during high-power charging and discharging. Through efficient heat exchange and circulating cooling mechanisms, it not only dissipates heat from the battery pack promptly, preventing overheating and ensuring safe operation of the battery system, but also maintains a suitable operating temperature, extending battery life and reducing performance degradation and capacity loss caused by high temperatures. Battery energy storage cooling systems are widely used in various scenarios requiring large-capacity, high-energy-density battery storage, including but not limited to grid energy storage, renewable energy generation, electric vehicles, and data centers. For information on battery energy storage cooling systems, please refer to Chinese invention patent application number 202410400217.5, entitled "A Liquid-Cooled and Air-Cooled Integrated Charging Cable Charging Station." Existing battery energy storage cooling systems struggle to achieve uniform cooling across all corners and locations within the battery pack. This uneven cooling not only affects the overall heat dissipation efficiency of the battery pack but can also lead to localized overheating, accelerating battery aging, shortening battery life, and compromising the efficiency of the battery energy storage cooling system. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an adjustable battery energy storage refrigeration system to achieve uniform cooling of battery modules in various corners and positions inside the battery pack.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a battery energy storage refrigeration system, comprising:

[0005] A battery box, the inner cavity of which is provided with a battery pack and a lifting adjustment member;

[0006] A lifting box is slidably disposed in the battery box, the lifting box is connected to the lifting adjustment member, and the lifting box is provided with an air inlet and an air blowing hole disposed toward the battery pack;

[0007] The cooling air supply component is connected to the air inlet through an air supply pipe extending into the inner cavity of the battery box.

[0008] Furthermore, the lifting adjustment member includes an adjustment rod and a guide rod parallel to each other, the lifting box and the adjustment rod are spirally reciprocatingly matched, and the lifting box and the guide rod are slidably connected.

[0009] Furthermore, the lifting box is provided with a positioning pin that is slidably engaged with the adjusting rod.

[0010] Furthermore, it also includes a drive motor, which is connected to the adjustment rod through a transmission assembly.

[0011] Furthermore, a nozzle is provided at the blowing hole.

[0012] Furthermore, the two groups of lifting adjustment members are located on opposite sides of the battery pack, and at least one lifting box is installed on each group of lifting adjustment members.

[0013] Furthermore, the inner cavity of the battery box includes a battery storage cavity and an adjustment cavity. The two adjustment cavities are respectively located on opposite sides of the battery storage cavity. The adjustment cavity is connected to the battery storage cavity. The battery pack is located in the battery storage cavity, and the lifting adjustment member and the lifting box are located in the adjustment cavity.

[0014] Furthermore, an exhaust port is provided on the side wall of the battery box, and the exhaust port is connected to the cooling air supply assembly through a return air duct.

[0015] Furthermore, the cooling air supply assembly includes a cooling box and a pump body. The inner cavity of the cooling box is provided with a cooling medium and a coil. The two ends of the coil extend out of the cooling box and are respectively connected to the pump body and the air supply pipe, and the return air pipe is connected to the pump body.

[0016] Furthermore, the outer cover of the air outlet is provided with an air collecting cover, and the air collecting cover is connected to the pump body through the return air pipe.

[0017] The beneficial effects of the present invention are as follows: a battery energy storage refrigeration system utilizes a lifting adjustment member to control the reciprocating lifting and lowering motion of a lifting box within a battery box. The cooling air supply assembly continuously supplies air to the lifting box through an air supply duct, allowing the lifting box to continuously cool the battery pack at different heights, thereby achieving uniform cooling of battery modules in all corners and locations within the battery pack. The battery energy storage refrigeration system provided by the present invention has the advantages of a simple structure and easy adjustment, improving the overall heat dissipation efficiency of the battery pack, avoiding accelerated battery aging and shortened battery life due to excessively high local temperatures in the battery box, and ensuring the efficient use of the battery energy storage refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the battery energy storage refrigeration system;

[0019] Figure 2 This is another structural diagram of the battery energy storage refrigeration system;

[0020] Figure 3 This is another structural diagram of the battery energy storage refrigeration system;

[0021] Figure 4 This is a partial schematic diagram of the battery energy storage refrigeration system;

[0022] Description of labels:

[0023] 1. Battery box; 11. Battery pack; 12. Lifting adjustment member; 121. Adjusting rod; 122. Guide rod; 13. Battery storage chamber; 14. Adjusting chamber; 15. Exhaust port; 151. Air condenser; 16. Return air duct; 2. Lifting box; 21. Air inlet; 22. Blowing hole; 221. Nozzle; 23. Positioning pin; 3. Cooling air supply assembly; 31. Air supply duct; 32. Cooling box; 321. Coil; 33. Pump body; 4. Drive motor; 41. Transmission assembly. DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0025] Please refer to Figures 1 to 4 As shown, the utility model is a battery energy storage refrigeration system, comprising:

[0026] The battery box 1 has a battery pack 11 and a lifting and adjusting member 12 in its inner cavity;

[0027] The lifting box 2 is slidably disposed in the battery box 1, the lifting box 2 is connected to the lifting adjustment member 12, and the lifting box 2 is provided with an air inlet 21 and an air blowing hole 22 arranged toward the battery pack 11;

[0028] The cooling air supply assembly 3 is connected to the air inlet 21 via an air supply pipe 31 extending into the inner cavity of the battery box 1 .

[0029] As can be seen from the above description, the beneficial effects of the present invention are: a battery energy storage refrigeration system, which uses a lifting adjustment member 12 to control the reciprocating lifting and lowering movement of the lifting box 2 in the battery box 1, and the cooling air supply component 3 continuously supplies air to the lifting box 2 through the air supply pipe 31, so that the lifting box 2 continuously cools the battery pack 11 at different heights, thereby achieving uniform cooling of the battery modules in various corners and positions inside the battery pack 11. The battery energy storage refrigeration system provided by the present invention has the advantages of simple structure and convenient adjustment, improves the overall heat dissipation efficiency of the battery pack 11, avoids accelerated battery aging and shortened battery service life due to excessively high local temperature in the battery box 1, and ensures the efficiency of the battery energy storage refrigeration system.

[0030] Furthermore, the lifting adjustment member 12 includes an adjustment rod 121 and a guide rod 122 that are parallel to each other. The lifting box 2 and the adjustment rod 121 are spirally reciprocatingly matched, and the lifting box 2 and the guide rod 122 are slidably connected.

[0031] As can be seen from the above description, the guide rod 122 plays a role in guiding and positioning the lifting box 2, and drives the lifting box 2 to rise or fall by controlling the adjustment rod 121 to rotate forward or reverse.

[0032] Furthermore, the lifting box 2 is provided with a positioning pin 23 that is slidably engaged with the adjusting rod 121 .

[0033] As can be seen from the above description, the surface of the adjusting rod 121 has a spiral reciprocating groove, and the lifting box 2 can be raised or lowered by the cooperation between the positioning pin 23 and the spiral reciprocating groove.

[0034] Furthermore, a driving motor 4 is included, and the driving motor 4 is connected to the adjusting rod 121 through a transmission assembly 41 .

[0035] As can be seen from the above description, the driving motor 4 controls the direction and speed of the adjustment rod 121 through the transmission assembly 41, thereby adjusting the heat dissipation effect of the battery pack 11.

[0036] Furthermore, a nozzle 221 is provided at the blowing hole 22 .

[0037] As can be seen from the above description, the cold air blown out of the blowing holes 22 is directed to the surface of the battery pack 11 by the nozzle 221 , thereby improving the heat dissipation effect of the battery pack 11 .

[0038] Furthermore, two groups of lifting adjustment members 12 are respectively located on opposite sides of the battery pack 11 , and at least one lifting box 2 is mounted on each group of lifting adjustment members 12 .

[0039] As can be seen from the above description, air blowing cooling is performed on both sides of the battery pack 11 to improve the heat dissipation effect of the battery pack 11.

[0040] Furthermore, the inner cavity of the battery box 1 includes a battery storage cavity 13 and an adjustment cavity 14. The two adjustment cavities 14 are respectively located on opposite sides of the battery storage cavity 13. The adjustment cavity 14 is connected to the battery storage cavity 13. The battery pack 11 is located in the battery storage cavity 13, and the lifting adjustment member 12 and the lifting box 2 are located in the adjustment cavity 14.

[0041] Furthermore, an air outlet 15 is provided on the side wall of the battery box 1 , and the air outlet 15 is connected to the cooling air supply assembly 3 through an air return duct 16 .

[0042] As can be seen from the above description, the airflow after heat exchange is discharged through the exhaust port 15 and then returns to the cooling air supply component 3 through the return air duct 16 for cooling circulation.

[0043] Furthermore, the cooling and air supply assembly 3 includes a cooling box 32 and a pump body 33. The inner cavity of the cooling box 32 is provided with a cooling medium and a coil 321. The two ends of the coil 321 extend out of the cooling box 32 and are respectively connected to the pump body 33 and the air supply pipe 31. The return air pipe 16 is connected to the pump body 33.

[0044] As can be seen from the above description, a cooling medium is used to cool the hot air flowing through the coil 321, which is then recycled after cooling. The coil 321 located in the cooling box 32 is arranged in a curved shape. The coolant in the cooling box 32 can reduce the air temperature in the coil 321, so that it can more effectively cool and dissipate heat for the battery energy storage system. The curved coil 321 allows the air to fully contact the coolant, thereby effectively cooling the air temperature in the coil 321.

[0045] Furthermore, the outer cover of the air outlet 15 is provided with an air collecting cover 151 , and the air collecting cover 151 is connected to the pump body 33 through the return air pipe 16 .

[0046] Please refer to Figures 1 to 4 As shown, the first embodiment of the present invention is: a battery energy storage refrigeration system, comprising:

[0047] The battery box 1 has a battery pack 11 and a lifting and adjusting member 12 in its inner cavity;

[0048] The lifting box 2 is slidably disposed in the battery box 1, the lifting box 2 is connected to the lifting adjustment member 12, and the lifting box 2 is provided with an air inlet 21 and an air blowing hole 22 arranged toward the battery pack 11;

[0049] The cooling air supply assembly 3 is connected to the air inlet 21 via an air supply pipe 31 extending into the inner cavity of the battery box 1. The air supply pipe 31 is a hose.

[0050] The lifting adjustment member 12 includes an adjustment rod 121 and a guide rod 122 that are parallel to each other. The lifting box 2 is spirally reciprocatingly matched with the adjustment rod 121, and the lifting box 2 is slidably connected with the guide rod 122. The lifting box 2 is provided with a positioning pin 23 that slides with the adjustment rod 121. It also includes a drive motor 4, which is installed at the bottom of the battery box 1. The drive motor 4 is connected to the end of the adjustment rod 121 that extends out of the battery box 1 through a transmission assembly 41. In this embodiment, the transmission assembly 41 is a pulley assembly. Each lifting box 2 is provided with two blowing holes 22, and a nozzle 221 is provided at the blowing hole 22. The two groups of lifting adjustment members 12 are respectively located on opposite sides of the battery pack 11, and at least one lifting box 2 is installed on each group of lifting adjustment members 12. The interior of the battery case 1 includes a battery storage chamber 13 and an adjustment chamber 14. The two adjustment chambers 14 are located on opposite sides of the battery storage chamber 13 and communicate with the battery storage chamber 13. The battery pack 11 is located in the battery storage chamber 13, and the lifting and lowering adjustment member 12 and the lifting box 2 are located in the adjustment chamber 14. An exhaust vent 15 is provided on the sidewall of the battery case 1. The exhaust vent 15 is connected to the cooling air supply assembly 3 via a return air duct 16. The cooling air supply assembly 3 includes a cooling box 32 and a pump body 33. The cooling box 32 and the pump body 33 are mounted on the top of the battery case 1. The interior of the cooling box 32 is provided with a cooling medium and a coil 321. The ends of the coil 321 extend out of the cooling box 32 and are connected to the pump body 33 and the air supply duct 31, respectively. The return air duct 16 is connected to the pump body 33. The exhaust vent 15 is covered with an air collecting hood 151, which is connected to the pump body 33 via the return air duct 16.

[0051] The working principle of the present invention is as follows: when using the battery energy storage refrigeration system to cool and dissipate heat for the battery pack 11, it is first necessary to start the pump body 33, and the pump body 33 will transport air through the coil 321 to the air supply pipe 31, and the air will be passed into the two lifting boxes 2 through the air supply pipe 31. After the air enters the two lifting boxes 2, it will be sprayed on the battery pack 11 through multiple nozzles 221 on both sides. Then, the drive motor 4 is started, and the output end of the drive motor 4 will simultaneously drive the two adjusting rods 121 to rotate through two transmission belts. When the two adjusting rods 121 rotate, the two positioning pins 23 can be driven by the spiral reciprocating grooves on the outside to make the two lifting boxes 2 move up and down synchronously, which not only ensures the continuity of air flow, but also greatly promotes the uniform distribution of cold air in the battery energy storage space, effectively avoids the occurrence of local overheating, improves the overall heat dissipation effect of the battery pack 11, and ensures the stability and safety of the battery pack 11 during efficient operation, making the battery energy storage refrigeration system more efficient, extending the service life of the battery, and improving the overall operation efficiency and reliability of the energy storage system.

[0052] In summary, the battery energy storage refrigeration system of the present invention utilizes a lifting adjustment member to control the reciprocating lifting and lowering motion of the lifting box within the battery box. The cooling air supply assembly continuously supplies air to the lifting box through the air supply duct, allowing the lifting box to continuously cool the battery pack at different heights, thereby achieving uniform cooling of battery modules in all corners and at different positions within the battery pack. The battery energy storage refrigeration system provided by the present invention has the advantages of a simple structure and easy adjustment, which improves the overall heat dissipation efficiency of the battery pack, avoids accelerated battery aging and shortened battery service life due to excessively high local temperatures in the battery box, and ensures the efficiency of the battery energy storage refrigeration system.

[0053] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A battery energy storage refrigeration system, characterized in that: include: A battery box, the inner cavity of which is provided with a battery pack and a lifting adjustment member; A lifting box is slidably disposed in the battery box, the lifting box is connected to the lifting adjustment member, and the lifting box is provided with an air inlet and an air blowing hole disposed toward the battery pack; The cooling air supply component is connected to the air inlet through an air supply pipe extending into the inner cavity of the battery box.

2. The battery energy storage refrigeration system according to claim 1, characterized in that: The lifting adjustment member comprises an adjustment rod and a guide rod which are parallel to each other; the lifting box and the adjustment rod are spirally reciprocatingly matched; and the lifting box and the guide rod are slidably connected.

3. The battery energy storage refrigeration system according to claim 2, characterized in that: The lifting box is provided with a positioning pin which is slidably matched with the adjusting rod.

4. The battery energy storage refrigeration system according to claim 2, characterized in that: It also includes a driving motor, which is connected to the adjusting rod through a transmission component.

5. The battery energy storage refrigeration system according to claim 1, characterized in that: A nozzle is provided at the air blowing hole.

6. The battery energy storage refrigeration system according to claim 1, characterized in that: The two groups of lifting adjustment members are respectively located on opposite sides of the battery pack, and at least one lifting box is installed on each group of lifting adjustment members.

7. The battery energy storage refrigeration system according to claim 6, characterized in that: The inner cavity of the battery box includes a battery storage cavity and an adjustment cavity. The two adjustment cavities are located on opposite sides of the battery storage cavity. The adjustment cavity is connected to the battery storage cavity. The battery pack is located in the battery storage cavity, and the lifting adjustment member and the lifting box are located in the adjustment cavity.

8. The battery energy storage refrigeration system according to claim 1, characterized in that: The side wall of the battery box is provided with an exhaust vent, which is connected to the cooling air supply assembly through a return air duct.

9. The battery energy storage refrigeration system according to claim 8, characterized in that: The cooling air supply assembly includes a cooling box and a pump body. The inner cavity of the cooling box is provided with a cooling medium and a coil. The two ends of the coil extend out of the cooling box and are respectively connected to the pump body and the air supply pipe. The return air pipe is connected to the pump body.

10. The battery energy storage refrigeration system according to claim 9, characterized in that: The outer cover of the air outlet is provided with an air collecting cover, which is connected to the pump body through an air return pipe.

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