Cooling structure for battery pack

Abstract

The invention relates to the technical field of automobile battery cooling, in particular to a cooling structure for a battery pack, which comprises a shell and two groups of battery pack blocks, the two groups of battery pack blocks are arranged in the shell, the opening of the shell is upward, a cover plate is arranged above the shell, and the cover plate is arranged on the shell. An elastic telescopic rod is fixedly installed on the upper portion of the shell, the upper end of the elastic telescopic rod makes contact with the lower surface of the cover plate, a cavity is formed in the shell, an air outlet is formed in the inner surface of the shell, and the air outlet communicates with the cavity. The cooling structure for the battery pack can be adaptively used between the battery packs, by arranging the adjusting plate, under the cooperation of the supporting plate and the push plate, when the rotating shaft drives the push plate to rotate reversely, the adjusting plate can move with the rotating shaft as the circle center, meanwhile, the adjusting plate can rotate, air flow between the two battery pack blocks can be increased, and the cooling effect of the battery pack blocks is improved. And the cooling effect on the battery assembly is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile battery cooling, in particular to a cooling structure for a battery pack. Background Art

[0002] Automotive battery pack cooling technology is the core part of the battery thermal management system. Its purpose is to ensure that the battery pack operates within the optimal temperature range through effective heat management, thereby improving battery performance, extending service life and ensuring safety. Power batteries generate a large amount of heat during the charging and discharging process. If the heat cannot be dissipated in time, the battery temperature will rise, which will in turn affect the battery's charging and discharging efficiency, power output and energy density. In addition, high temperature may also cause thermal runaway, and in severe cases may even cause the battery to catch fire or explode.

[0003] Existing technologies generally dissipate heat from the outside of the battery pack. High-power power batteries, such as lithium-ion power batteries, generate a large amount of heat during use. If the heat is not dissipated in a timely manner, the battery life will be affected and serious safety hazards will be posed. The gap between two adjacent battery packs is not only small, but also the heat dissipation effect is poor, resulting in uneven heat dissipation of the battery pack, which affects the battery pack's service life. Summary of the Invention

[0004] An object of the present invention is to provide a cooling structure for a battery pack to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cooling structure for a battery pack, comprising a shell and a battery block, the number of the battery blocks being two groups, both groups of battery blocks being placed inside the shell, the shell opening being upward, a cover being provided above the shell, an elastic telescopic rod being fixedly installed above the shell, the upper end of the elastic telescopic rod being in contact with the lower surface of the cover, a cavity being provided inside the shell, an air outlet being provided on the inner surface of the shell, the air outlet being connected to the cavity, an adjustment plate being provided at the inner center of the shell, the number of the adjustment plate being at least one group, the adjustment plate being located between the two groups of battery blocks, and the adjustment plate being connected to the shell via a rotating mechanism.

[0006] Preferably, the rotating mechanism includes a support plate, which is slidably installed below the adjustment plate, and the support plate is connected to the outer shell through a driving assembly. A shaft is fixedly installed below the support plate, a power assembly is provided on the outside of the shaft, and a pushing assembly is provided between the support plate and the adjustment plate.

[0007] Preferably, the driving assembly includes a rotating shaft and a motor, the rotating shaft is rotatably installed inside the shell, the rotating shaft passes through the shell and extends to the bottom of the shell, the motor is fixedly installed below the rotating shaft, the motor and the shell are fixedly connected, a column is fixedly installed on the outside of the rotating shaft, the external sliding sleeve of the column is provided with a push plate, one side of the support plate is inclined, the push plate and the support plate are in contact and fit, the external sliding sleeve of the column is provided with a No. 3 spring, and the No. 3 spring is fixedly connected to the push plate.

[0008] Preferably, fan blades are fixedly mounted on the outside of the rotating shaft, and the fan blades are located inside the cavity.

[0009] Preferably, the power assembly includes a gear and a rack, the gear is fixedly sleeved on the outside of the shaft, the rack is fixedly installed on the inner bottom surface of the shell, the gear and the rack are meshed, and the rack is designed to be arc-shaped.

[0010] Preferably, the power assembly further includes a guide groove and a guide block. The guide groove is opened inside the shell and is annular in design. The guide block is slidably installed inside the guide groove. The guide block is fixedly connected to the support plate.

[0011] Preferably, the pushing assembly includes a sliding rod, which is fixedly installed inside the support plate, a sliding sleeve on the outer surface of the sliding rod is provided with a slider, the slider is rotatably connected to the adjustment plate, a movable sleeve on the outer surface of the sliding rod is provided with a No. 1 spring, the No. 1 spring is fixedly connected to the slider, and a limiting structure is provided between the slider and the support plate.

[0012] Preferably, the limiting structure includes a groove, which is opened inside the slider, and a limiting block is slidably installed inside the groove, and a No. 2 spring is movably installed inside the groove, and the No. 2 spring and the limiting block are fixedly connected, and a limiting hole is opened inside the support plate, and the limiting hole and the limiting block are plug-fitted.

[0013] Preferably, a groove is provided inside the cover plate, a water outlet is provided below the cover plate, the water outlet is connected to the groove, a baffle is slidably inserted inside the groove, the area of the baffle is larger than the area of the water outlet, the baffle is in contact with the adjustment plate, and the cover plate is connected to the rotating shaft through a lifting structure.

[0014] Preferably, the lifting structure includes a cross bar, which is fixedly installed under the cover plate, and two groups of mounting blocks are slidably installed on the outer surface of the cross bar, and an elastic member is provided between the two groups of mounting blocks. The outer surface of the rotating shaft is slidably sleeved with a ring, and the outer surface of the rotating shaft is provided with a threaded groove, and the threaded groove and the ring are threadedly connected, and two groups of connecting plates are rotatably installed above the ring, and the end of the connecting plate away from the ring is rotatably connected to the mounting block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting a rotating shaft to drive the fan blades to rotate, the external air is transported to the inside of the shell. With the cooperation of the elastic telescopic rod, there is a gap between the cover and the shell, which is conducive to increasing the air flow inside the shell, thereby improving the cooling effect of the battery pack.

[0017] 2. By setting up an adjustment plate, with the cooperation of the support plate and the push plate, when the shaft drives the push plate to reverse, the adjustment plate can move with the shaft as the center of the circle, and at the same time the adjustment plate can rotate on its own, which is beneficial to increase the air flow between the two groups of battery blocks, further improving the cooling effect of the battery components. The reversal of the shaft can limit the battery blocks through the adjustment plate, which can be adapted for use between battery packs, which is beneficial to reduce the collision of the battery blocks inside the shell, thereby helping to reduce the possibility of battery explosion.

[0018] 3. By setting up a trough body, the inside of the trough body is filled with water. After the cover plate contacts the outer shell, the upper part of the outer shell can be kept in a sealed state. The water inside the trough body flows to the outside of the battery pack. At the same time, the fan blades can extract the air inside the outer shell, so that when the battery catches fire, it can have a certain fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a perspective view of the structure of the present invention;

[0021] Figure 3 It is a cross-sectional view of the structure of the present invention;

[0022] Figure 4 It is a cross-sectional view of the structure from another perspective of the present invention;

[0023] Figure 5 It is a partial structural schematic diagram of the present invention;

[0024] Figure 6 It is a partial structural cross-sectional view of the present invention;

[0025] Figure 7 For the present invention Figure 6 A magnified view of point A;

[0026] Figure 8 It is a partial structural cross-sectional view of the present invention.

[0027] In the accompanying drawings, the list of parts represented by each reference number is as follows: 1. Shell; 2. Battery pack; 3. Cover; 4. Elastic telescopic rod; 5. Rotating shaft; 6. Motor; 7. Adjustment plate; 8. Support plate; 9. Slide bar; 10. Slider; 11. Spring No. 1; 12. Groove; 13. Limit block; 14. Limit hole; 15. Spring No. 2; 16. Guide groove; 17. Guide block; 18. Shaft; 19. Gear; 20. Rack; 21. Push plate; 22. Column; 23. Spring No. 3; 24. Cross bar; 25. Mounting block; 26. Elastic part; 27. Ring; 28. Connecting plate; 29. Threaded groove; 30. Trough body; 31. Water outlet; 32. Baffle; 33. Cavity; 34. Fan blade; 35. Air outlet. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figures 1-8 The figure shows a cooling structure for a battery pack, including a shell 1 and a battery block 2. There are two groups of battery blocks 2, and both groups of battery blocks 2 are placed inside the shell 1. The shell 1 opens upward, and a cover plate 3 is provided on the top of the shell 1. An elastic telescopic rod 4 is fixedly installed on the top of the shell 1, and the upper end of the elastic telescopic rod 4 contacts the lower surface of the cover plate 3. A cavity 33 is provided inside the shell 1, and an air outlet 35 is provided on the inner surface of the shell 1. The air outlet 35 is connected to the cavity 33. An adjustment plate 7 is provided at the inner center of the shell 1. The number of the adjustment plate 7 is at least one group. The adjustment plate 7 is located between the two groups of battery blocks 2, and the adjustment plate 7 is connected to the shell 1 through a rotating mechanism.

[0030] The rotating mechanism includes a support plate 8, which is slidably installed under the adjusting plate 7. The support plate 8 is connected to the outer shell 1 through a driving assembly. A shaft 18 is fixedly installed under the support plate 8. A power assembly is provided on the outside of the shaft 18. A pushing assembly is provided between the support plate 8 and the adjusting plate 7.

[0031] The driving assembly includes a rotating shaft 5 and a motor 6. The rotating shaft 5 is rotatably installed inside the shell 1. The rotating shaft 5 passes through the shell 1 and extends to the bottom of the shell 1. The motor 6 is fixedly installed below the rotating shaft 5. The motor 6 and the shell 1 are fixedly connected. A column 22 is fixedly installed on the outside of the rotating shaft 5. The external sliding sleeve of the column 22 is provided with a push plate 21. One side of the support plate 8 is inclined. The push plate 21 and the support plate 8 are in contact and fit. The external sliding sleeve of the column 22 is provided with a No. 3 spring 23. The No. 3 spring 23 and the push plate 21 are fixedly connected.

[0032] The outside of the rotating shaft 5 is fixedly mounted with a fan blade 34 , which is located inside the cavity 33 .

[0033] Specifically, the motor 6 is connected to an external power supply, the motor 6 drives the rotating shaft 5 to reverse, and the rotating shaft 5 drives the fan blades 34 to rotate synchronously. At this time, the external air can enter the interior of the cavity 33, and the air enters the interior of the shell 1 through the air outlet 35, which is beneficial to increase the air flow inside the shell 1 and dissipate heat to the battery pack 2. It should be noted that under the action of the elastic telescopic rod 4, a gap is left between the cover plate 3 and the shell 1, and the air inside the shell 1 can flow out through the gap between the cover plate 3 and the shell 1.

[0034] At the same time, when the rotating shaft 5 is reversed, the push plate 21 is driven to rotate synchronously through the column 22. The push plate 21 contacts the support plate 8 and drives the support plate 8 to move synchronously. The support plate 8 drives the adjustment plate 7 to move synchronously. During this process, the power component can drive the adjustment plate 7 to rotate, which is beneficial to increase the air flow between the two groups of battery blocks 2, thereby improving the cooling effect of the battery blocks 2.

[0035] The power assembly includes a gear 19 and a rack 20. The gear 19 is fixedly sleeved on the outside of the shaft 18, and the rack 20 is fixedly installed on the inner bottom surface of the housing 1. The gear 19 and the rack 20 are meshed, and the rack 20 is designed in an arc shape.

[0036] The power assembly further includes a guide groove 16 and a guide block 17 . The guide groove 16 is provided inside the housing 1 and is annular in design. The guide block 17 is slidably mounted inside the guide groove 16 . The guide block 17 is fixedly connected to the support plate 8 .

[0037] When the rotating shaft 5 drives the support plate 8 to reverse through the push plate 21, the support plate 8 rotates along the guide groove 16 under the action of the guide block 17. Since the gear 19 and the rack 20 are engaged, the gear 19 can drive the adjustment plate 7 to rotate through the shaft 18.

[0038] The pushing assembly includes a slide rod 9, which is fixedly installed inside the support plate 8. The outer surface sliding sleeve of the slide rod 9 is provided with a slider 10, and the slider 10 is rotatably connected to the adjustment plate 7. The outer surface movable sleeve of the slide rod 9 is provided with a No. 1 spring 11, and the No. 1 spring 11 is fixedly connected to the slider 10. A limiting structure is set between the slider 10 and the support plate 8.

[0039] The limiting structure includes a groove 12, which is opened inside the slider 10. A limiting block 13 is slidably installed inside the groove 12. A No. 2 spring 15 is movably installed inside the groove 12. The No. 2 spring 15 and the limiting block 13 are fixedly connected. A limiting hole 14 is opened inside the support plate 8, and the limiting hole 14 and the limiting block 13 are plug-fitted.

[0040] When the rotating shaft 5 rotates forward, the rotating shaft 5 drives the push plate 21 to rotate synchronously. Since one side of the support plate 8 is inclined, when the push plate 21 contacts the support plate 8, the push plate 21 can move along the inclined surface to the top of the support plate 8. At this time, the push plate 21 slides upward on the outer surface of the column 22, and the No. 3 spring 23 is compressed. When the push plate 21 continues to rotate, it contacts the slider 10, and the slider 10 drives the adjustment plate 7 to slide on the outer surface of the slide rod 9. At this time, the No. 1 spring 11 is deformed under force, and the adjustment plate 7 can contact the battery block 2 to limit the battery block 2. It should be noted that in the initial state, the adjustment plate 7 is perpendicular to the length direction of the slide rod 9. A magnet is provided inside the shell 1. Under the action of the magnet, when the adjustment plate 7 is in a stationary state, the length direction of the adjustment plate 7 and the slide rod 9 is perpendicular.

[0041] When the limit block 13 moves to the position of the limit hole 14, under the elastic force of the No. 2 spring 15, the No. 2 spring 15 pushes the limit block 13 out from the inside of the groove 12, so that the limit block 13 can pass through the limit hole 14, thereby fixing the adjustment plate 7 and the support plate 8 together.

[0042] A groove body 30 is provided inside the cover plate 3, and a water outlet 31 is provided below the cover plate 3. The water outlet 31 is connected to the groove body 30. A baffle 32 is slidably inserted inside the groove body 30. The area of the baffle 32 is larger than the area of the water outlet 31. The baffle 32 is in contact with the adjustment plate 7. The cover plate 3 is connected to the rotating shaft 5 through a lifting structure.

[0043] The lifting structure includes a cross bar 24, which is fixedly installed under the cover plate 3. Two groups of mounting blocks 25 are slidably installed on the outer surface of the cross bar 24, and an elastic member 26 is provided between the two groups of mounting blocks 25. The outer surface of the rotating shaft 5 is slidably sleeved with a ring 27, and the outer surface of the rotating shaft 5 is provided with a threaded groove 29. The threaded groove 29 and the ring 27 are threadedly connected. Two groups of connecting plates 28 are rotatably installed above the ring 27, and the end of the connecting plate 28 away from the ring 27 is rotatably connected to the mounting block 25.

[0044] When the battery pack 2 catches fire, the rotating shaft 5 rotates forward. Since the threaded groove 29 and the ring 27 are threadedly connected, the rotating shaft 5 can drive the ring 27 to move downward. At this time, the ring 27 can drive the connecting plate 28 to rotate, and the connecting plate 28 drives the mounting blocks 25 to approach each other outside the cross bar 24. At this time, the elastic member 26 is deformed by the force. When the two groups of mounting blocks 25 are in contact, the ring 27 can drive the cover plate 3 to move downward through the connecting plate 28, so that the cover plate 3 contacts the outer shell 1, and the top of the cover plate 3 can be sealed. At the same time, the rotating shaft 5 drives the fan blades 34 to rotate, and the air inside the outer shell 1 is extracted, so that the air inside the outer shell 1 can be reduced.

[0045] Furthermore, when the cover plate 3 moves downward, the baffle 32 contacts the adjustment plate 7, and the adjustment plate 7 drives the baffle 32 to move upward. At this time, the water inside the tank 30 can fall above the battery block 2 through the water outlet 31, playing a certain fire extinguishing role.

[0046] Working principle: Under the action of the elastic telescopic rod 4, a gap is left between the cover plate 3 and the outer shell 1, and the motor 6 is connected to the external power supply. The motor 6 drives the rotating shaft 5 to reverse, and the rotating shaft 5 drives the fan blades 34 to rotate synchronously. At this time, the external air can enter the interior of the cavity 33, and the air enters the interior of the outer shell 1 through the air outlet 35. The air inside the outer shell 1 can flow out through the gap between the cover plate 3 and the outer shell 1.

[0047] When the rotating shaft 5 is reversed, the push plate 21 is driven to rotate synchronously through the column 22. The push plate 21 contacts the support plate 8 and drives the support plate 8 to move synchronously. The support plate 8 drives the adjustment plate 7 to move synchronously. Under the action of the guide block 17, the support plate 8 rotates along the guide groove 16. Since the gear 19 and the rack 20 are engaged, the gear 19 can drive the adjustment plate 7 to rotate through the shaft 18.

[0048] When the rotating shaft 5 rotates forward, the rotating shaft 5 drives the push plate 21 to rotate synchronously. Since one side of the support plate 8 is inclined, when the push plate 21 contacts the support plate 8, the push plate 21 can move along the inclined surface to the top of the support plate 8. At this time, the push plate 21 slides upward on the outer surface of the column 22, and the No. 3 spring 23 is compressed. When the push plate 21 continues to rotate, it contacts the slider 10, and the slider 10 drives the adjustment plate 7 to slide on the outer surface of the slide rod 9. At this time, the No. 1 spring 11 is deformed under force, and the adjustment plate 7 can contact the battery block 2 to limit the battery block 2. It should be noted that in the initial state, the adjustment plate 7 is perpendicular to the length direction of the slide rod 9. A magnet is provided inside the shell 1. Under the action of the magnet, when the adjustment plate 7 is in a stationary state, the length direction of the adjustment plate 7 and the slide rod 9 is perpendicular.

[0049] When the limit block 13 moves to the position of the limit hole 14, under the elastic force of the No. 2 spring 15, the No. 2 spring 15 pushes the limit block 13 out from the inside of the groove 12, so that the limit block 13 can pass through the limit hole 14, thereby fixing the adjustment plate 7 and the support plate 8 together.

[0050] When the battery pack 2 catches fire, the rotating shaft 5 rotates forward. Since the threaded groove 29 and the ring 27 are threadedly connected, the rotating shaft 5 can drive the ring 27 to move downward. At this time, the ring 27 can drive the connecting plate 28 to rotate, and the connecting plate 28 drives the mounting blocks 25 to approach each other outside the cross bar 24. At this time, the elastic member 26 is deformed by the force. When the two groups of mounting blocks 25 are in contact, the ring 27 can drive the cover plate 3 to move downward through the connecting plate 28, so that the cover plate 3 contacts the outer shell 1, and the top of the cover plate 3 can be sealed. At the same time, the rotating shaft 5 drives the fan blades 34 to rotate to extract the air inside the outer shell 1.

[0051] Furthermore, when the cover plate 3 moves downward, the baffle 32 contacts the adjustment plate 7 , and the adjustment plate 7 drives the baffle 32 to move upward. At this time, the water inside the tank 30 can fall onto the battery block 2 through the water outlet 31 .

[0052] 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.

[0053] 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 cooling structure for a battery pack, comprising a housing (1) and a battery pack block (2), characterized in that: The number of the battery blocks (2) is two, and both groups of the battery blocks (2) are placed inside the shell (1). The shell (1) is open upward, and a cover plate (3) is provided above the shell (1). An elastic telescopic rod (4) is fixedly installed above the shell (1), and the upper end of the elastic telescopic rod (4) contacts the lower surface of the cover plate (3). A cavity (33) is provided inside the shell (1), and an air outlet (35) is provided on the inner surface of the shell (1). The air outlet (35) is communicated with the cavity (33). An adjustment plate (7) is provided at the center of the inner portion of the shell (1). The number of the adjustment plate (7) is at least one group. The adjustment plate (7) is located between the two groups of battery blocks (2), and the adjustment plate (7) is connected to the shell (1) through a rotating mechanism.

2. A cooling structure for a battery pack according to claim 1, characterized in that: The rotating mechanism comprises a support plate (8), the support plate (8) being slidably mounted below the adjusting plate (7), the support plate (8) being connected to the housing (1) via a driving assembly, a shaft (18) being fixedly mounted below the support plate (8), a power assembly being arranged outside the shaft (18), and a pushing assembly being arranged between the support plate (8) and the adjusting plate (7).

3. A cooling structure for a battery pack according to claim 2, characterized in that: The driving assembly comprises a rotating shaft (5) and a motor (6), wherein the rotating shaft (5) is rotatably mounted inside the housing (1), the rotating shaft (5) passes through the housing (1) and extends to the bottom of the housing (1), the motor (6) is fixedly mounted below the rotating shaft (5), the motor (6) and the housing (1) are fixedly connected, a column (22) is fixedly mounted on the outside of the rotating shaft (5), an external sliding sleeve of the column (22) is provided with a push plate (21), one side of the support plate (8) is inclined, the push plate (21) and the support plate (8) are in contact and fit, the external sliding sleeve of the column (22) is provided with a No. 3 spring (23), and the No. 3 spring (23) and the push plate (21) are fixedly connected.

4. A cooling structure for a battery pack according to claim 3, characterized in that: A fan blade (34) is fixedly mounted on the outside of the rotating shaft (5), and the fan blade (34) is located inside the cavity (33).

5. The cooling structure for a battery pack according to claim 2, characterized in that: The power assembly comprises a gear (19) and a rack (20), wherein the gear (19) is fixedly sleeved on the outside of the shaft (18), and the rack (20) is fixedly installed on the inner bottom surface of the housing (1), and the gear (19) and the rack (20) are meshed, and the rack (20) is designed to be circular arc-shaped.

6. A cooling structure for a battery pack according to claim 5, characterized in that: The power assembly further comprises a guide groove (16) and a guide block (17); the guide groove (16) is provided inside the housing (1); the guide groove (16) is annular in design; the guide block (17) is slidably mounted inside the guide groove (16); and the guide block (17) is fixedly connected to the support plate (8).

7. The cooling structure for a battery pack according to claim 2, characterized in that: The pushing assembly includes a slide rod (9), which is fixedly installed inside the support plate (8), and a sliding block (10) is provided on the outer surface of the slide rod (9), and the sliding block (10) is rotatably connected to the adjustment plate (7). The outer surface of the slide rod (9) is movably provided with a spring (11), and the spring (11) is fixedly connected to the slider (10), and a limiting structure is provided between the slider (10) and the support plate (8).

8. The cooling structure for a battery pack according to claim 7, characterized in that: The limiting structure comprises a groove (12), the groove (12) is provided inside the slider (10), a limiting block (13) is slidably installed inside the groove (12), a No. 2 spring (15) is movably installed inside the groove (12), the No. 2 spring (15) and the limiting block (13) are fixedly connected, a limiting hole (14) is provided inside the support plate (8), and the limiting hole (14) and the limiting block (13) are plug-fitted.

9. The cooling structure for a battery pack according to claim 2, characterized in that: A trough (30) is provided inside the cover plate (3), a water outlet (31) is provided below the cover plate (3), the water outlet (31) is communicated with the trough (30), a baffle (32) is slidably inserted inside the trough (30), the area of the baffle (32) is larger than the area of the water outlet (31), the baffle (32) is in contact with the adjustment plate (7), and the cover plate (3) is connected to the rotating shaft (5) via a lifting structure.

10. A cooling structure for a battery pack according to claim 9, characterized in that: The lifting structure comprises a cross bar (24), the cross bar (24) being fixedly mounted below the cover plate (3), two groups of mounting blocks (25) being slidably mounted on the outer surface of the cross bar (24), an elastic member (26) being provided between the two groups of mounting blocks (25), a circular ring (27) being slidably sleeved on the outer surface of the rotating shaft (5), a threaded groove (29) being provided on the outer surface of the rotating shaft (5), the threaded groove (29) being threadedly connected to the circular ring (27), two groups of connecting plates (28) being rotatably mounted above the circular ring (27), and one end of the connecting plate (28) being away from the circular ring (27) being rotatably connected to the mounting block (25).

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