Cooling structure for vehicle retired power battery whole pack recycling energy storage charging station

Abstract

The invention discloses a cooling structure for a vehicle retired power battery whole pack recycling energy storage charging station, which comprises a heat dissipation plate, the heat dissipation plate is provided with a conduction surface and a heat dissipation surface which are opposite to each other, the conduction surface is attached to the top surface or the bottom surface of a battery pack, and heat dissipation fins are arranged on the heat dissipation surface; the air supply pipeline is located at the head end of the extending direction of the heat dissipation fins, the air supply pipeline is provided with an air outlet, and the air outlet direction of the air outlet is consistent with the extending direction of the heat dissipation fins; the air return pipeline is located at the tail end of the extending direction of the heat dissipation fins, the air return pipeline is provided with an air return opening, and the air return direction of the air return opening is consistent with the extending direction of the heat dissipation fins; the battery in the energy storage box body can be charged and discharged in a charging and discharging environment at an ideal temperature, the reuse performance of the waste battery is improved, and the quality of the energy storage box is improved.

Description

Technical Field

[0001] The present invention relates to the field of the whole-pack utilization of retired power battery packs, and in particular to a cooling structure of an energy storage charging station for the whole-pack reuse of retired power batteries for vehicles. Background Art

[0002] When new energy vehicles first entered the domestic market, the concept of cascade utilization was proposed in order to cope with the craze for retiring power batteries. Subsequently, relevant state departments successively introduced a number of policies to regulate the extension of corporate responsibilities, battery production and trading, use management, disassembly and recycling, and quality and safety assurance. Relevant companies also followed up and began the research and development of battery recycling technology.

[0003] For example, when used in energy storage boxes, the purpose of reducing electricity costs is achieved by staggered charging and discharging of the energy storage boxes. Generally, batteries generate a certain amount of heat when in a discharge state. When the heat is too high and the battery temperature exceeds the temperature range of normal use, the battery performance will be reduced and the battery cycle life will be shortened. In particular, after the battery packs are stacked and connected in parallel in the energy storage box, since the air-conditioning outlet of the energy storage box is at the top, there is a temperature difference between the top and bottom of the energy storage box, and since the temperature of the battery packs themselves rises, the temperature difference between the battery packs at the top and bottom of the energy storage box is further widened. There are differences when the energy storage box is uniformly charged and discharged, so that the batteries cannot be in an ideal temperature charging and discharging environment, resulting in the reuse life of the battery packs at the bottom of the energy storage box being generally lower than the reuse life of the battery packs at the top of the energy storage box, which is not conducive to controlling the cost of the energy storage station, and multiple maintenance is not conducive to the promotion and application of energy storage stations.

[0004] Therefore, in order to solve the above problems, a cooling structure for a whole-pack recycling energy storage charging station for retired automotive power batteries is needed, which can ensure that the batteries in the energy storage box are charged and discharged in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries and the quality of the energy storage box. Summary of the invention

[0005] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a cooling structure for a whole pack of retired automotive power batteries for recycling energy storage charging stations, which can make the battery charging and discharging in the energy storage box in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries.

[0006] The cooling structure of the energy storage charging station for recycling the whole package of retired vehicle power batteries of the present invention comprises a heat sink, the heat sink has a conducting surface and a heat dissipation surface opposite to each other, the conducting surface is attached to the top surface or the bottom surface of the battery pack, and the heat dissipation surface is provided with heat dissipation fins;

[0007] It also includes an air supply duct located at the head end of the extension direction of the heat dissipation fins, the air supply duct having an air outlet, and the air outlet direction of the air outlet is consistent with the extension direction of the heat dissipation fins;

[0008] It also includes a return air duct located at the end of the extension direction of the heat dissipation fins, the return air duct has a return air port, and the return air direction of the return air port is consistent with the extension direction of the heat dissipation fins.

[0009] Furthermore, the air outlet and the return air outlet are arranged relatively to each other in the extension direction of the heat dissipation fins, the middle of the air outlet in the height direction is higher than the middle of the air outlet in the height direction, and the middle of the air outlet in the height direction is close to the heat dissipation surface.

[0010] Furthermore, the air supply duct extends in the height direction, the air supply duct is arranged at the front side of the head end of the heat dissipation plate, an air induction plate for guiding the gas to the air outlet is arranged in the air supply duct, a diversion hole is opened on the air induction plate, or a diversion hole is formed between the air induction plate and the inner wall of the air supply duct;

[0011] Several groups of battery packs are stacked in the height direction in the box of the energy storage charging station, and a group of heat sinks are correspondingly arranged on each group of battery packs; the number of air outlets of the air supply duct is consistent with the number of heat sinks, and the air outlets and the heat sinks are arranged at the front end of the heat sink in a one-to-one correspondence; the number of the air induction plates is consistent with the number of air outlets, and the air induction plates and the air outlets are arranged at the front end of the air outlets in a one-to-one correspondence.

[0012] Furthermore, the air induction plate is inclined downward from front to back, and the diversion holes are provided on the air induction plate, and the diversion holes provided on adjacent air induction plates are staggered in height direction.

[0013] Furthermore, the diversion holes staggeredly arranged on the adjacent air inducing plates in the height direction have an overlapping area.

[0014] Furthermore, the air induction plate is provided with a plurality of diversion holes, the aperture sizes of the plurality of diversion holes gradually decrease from front to back, and the spacing between adjacent via holes gradually increases from front to back.

[0015] Furthermore, the return air duct extends in the height direction, and the return air duct is arranged on the rear side of the end of the heat sink. The number of return air outlets of the return air duct is consistent with the number of heat sinks. The return air outlets and the heat sinks are arranged at the rear end of the heat sink in a one-to-one correspondence, and the aperture sizes of the return air outlets gradually decrease from bottom to top.

[0016] Furthermore, the heat dissipation fins are composed of a plurality of fins, and the plurality of heat dissipation fins are arranged in parallel along a set direction I, and the heights of the plurality of heat dissipation fins along the set direction I gradually increase from the middle to both sides.

[0017] Furthermore, along the set direction I, the head ends of a plurality of the heat dissipation fins gradually shrink inward from both sides to the middle.

[0018] Furthermore, along the set direction I, the spacing between the heat dissipation fins gradually decreases from the middle to the two ends.

[0019] The beneficial effects of the present invention are as follows: the present invention discloses a cooling structure for a whole-pack recycling energy storage charging station for retired vehicle power batteries, through corresponding air outlets and return air outlets, heat dissipation fins are arranged between the two, so that the airflow path passes through the heat dissipation fins, and the heat of the corresponding battery pack is directly taken away. When the battery pack is assembled in the energy storage box, each battery pack is equipped with the heat dissipation plate of the present solution and the corresponding air outlets and return air outlets, and the air outlet and return air both rely on the air conditioning cooling system in the original energy storage box. Compared with the original air conditioning cooling system in the energy storage box, This solution can directly apply cooling air to the battery pack, reduce the cooling differences at different positions of the battery pack, speed up the heat dissipation efficiency of the battery pack, increase the heat dissipation efficiency of the battery pack, control the battery pack temperature within a preset range, and reduce the overheating and scrapping of the battery pack due to inconsistent heat dissipation efficiency of the battery pack in the energy storage box. At the same time, it can also improve the safety of the energy storage box, and the heat dissipation of each battery pack can be taken into account, so that the battery charging and discharging in the energy storage box can be in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries and improving the quality of the energy storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a front view structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the heat dissipation plate of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the air induced draft plate of the present invention. DETAILED DESCRIPTION

[0025] Figure 1 It is a structural schematic diagram of the present invention, Figure 1 The middle dotted line is the return air duct 5; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the heat dissipation plate 1 of the present invention; Figure 4It is a schematic diagram of the structure of the air induction plate 7 of the present invention, in which the solid line and the dotted line are used to represent the schematic diagram of the position of the diverter holes 8 opened on the adjacent air induction plates 7 from top to bottom in the height direction; as shown in the figure, the cooling structure for the energy storage charging station for the whole recycling of retired vehicle power batteries in this embodiment includes a heat sink 1, and the heat sink 1 has a relative conduction surface and a heat dissipation surface, and the conduction surface is attached to the top surface or the bottom surface of the battery pack 001, and the heat dissipation surface is provided with heat dissipation fins 2; the heat sink 1 of this scheme is arranged on the top of the battery pack 001, and the heat sink 1 arranges the heat dissipation surface with heat dissipation fins 2 opposite to the conduction surface attached to the top surface of the battery pack 001, so that the heat of the battery pack 001 can be taken away not only through its own liquid cooling system, but also through the heat sink 1, thereby improving the heat dissipation efficiency of the battery pack 001 and reducing the problem of difference in reuse life of the battery pack 001 caused by uneven heat dissipation;

[0026] More specifically, it also includes an air supply duct 3 located at the head end of the extension direction of the heat dissipating fins 2, the air supply duct 3 has an air outlet 4, and the air outlet direction of the air outlet 4 is consistent with the extension direction of the heat dissipating fins 2; it also includes a return air duct 5 located at the end of the extension direction of the heat dissipating fins 2, the return air duct 5 has a return air outlet 6, and the return air direction of the return air outlet 6 is consistent with the extension direction of the heat dissipating fins 2. The position that first contacts the wind flow along the air outlet direction of the air supply duct 3 is the head end, and the position that contacts the wind flow vice versa is the end end. Through the corresponding air outlet 4 and return air outlet 6, the heat dissipation fin 2 is arranged between the two, so that the airflow path passes through the heat dissipation fin 2, and the heat of the corresponding battery pack 001 is directly taken away, and the return air outlet 6 also has a certain negative pressure, so that the cooling wind is guided and forced to flow through the heat dissipation fins, thereby accelerating the cooling efficiency of the battery pack; when the battery pack 001 is assembled in the energy storage box, each battery pack 001 is equipped with the heat dissipation plate 1 of this solution and the corresponding air outlet 4 and return air outlet 6, and the air outlet and return air rely on the air conditioning cooling system in the original energy storage box. Compared with the original air conditioning cooling in the energy storage box, Cooling system, this solution can directly apply cooling air to battery pack 001, reduce the cooling differentiation of different positions of battery pack 001, speed up the heat dissipation efficiency of battery pack 001, increase the heat dissipation efficiency of battery pack 001, control the temperature of battery pack 001 within a preset range, reduce overheating and scrapping of battery pack 001 due to inconsistent heat dissipation efficiency of battery pack 001 in the energy storage box, and at the same time improve the safety of the energy storage box, and the heat dissipation of each battery pack 001 can be taken into account, so that the battery charging and discharging in the energy storage box can be in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries, ensuring the service life of waste batteries during cascade utilization, and improving the quality of the energy storage box.

[0027] In this embodiment, the air outlet 4 and the return air outlet 6 are arranged relatively in the extension direction of the heat dissipation fins 2, the middle of the air outlet 4 in the height direction is higher than the middle of the air outlet 4 in the height direction, and the middle of the air outlet 4 in the height direction is close to the heat dissipation surface. By relatively arranging the air outlet 4 and the return air outlet 6 and arranging them close to each other in the extension direction of the heat dissipation fins 2, the flow rate of the cooling air can be accelerated, the heat dissipation efficiency of the battery pack 001 can be improved, and the temperature of the environment in which the battery pack 001 is located can be maintained within a suitable range. The purpose of the height difference between the air outlet 4 and the return air outlet 6 is to tilt the cooling air flow direction of the heat dissipation fins 2 from top to bottom, further satisfying the function of efficient air cooling and improving the service life of the battery pack 001.

[0028] In this embodiment, the air supply duct 3 extends in the height direction, and the air supply duct 3 is arranged at the front side of the head end of the heat dissipation plate 1. The air supply duct 3 is provided with an air induction plate 7 for guiding the gas to the air outlet 4. The air induction plate 7 is provided with a diversion hole 8, or a diversion hole 8 is formed between the air induction plate 7 and the inner wall of the air supply duct 3; so that the cooling air can pass through the corresponding air outlet 4 and diffuse to the corresponding return air outlet 6 through each battery pack 001; the front is the side that contacts the airflow first in the air supply direction, and the back is the side that contacts the airflow first in the air supply direction, which will not be described in detail here;

[0029] Several groups of battery packs 001 are stacked in the height direction in the box of the energy storage charging station, and a group of heat sinks 1 is correspondingly arranged on each group of battery packs 001. The group of heat sinks 1 can be one independently arranged at the top or bottom of the battery pack 001, or can be two respectively arranged at the top and bottom of the battery pack 001. They are arranged according to actual conditions and will not be repeated here. The number of air outlets 4 of the air supply duct 3 is consistent with the number of heat sinks 1, and the air outlets 4 are arranged at the front end of the heat sink 1 in a one-to-one correspondence with the heat sink 1; the number of the air induction plates 7 is consistent with the number of the air outlets 4, and the air induction plates 7 are arranged at the front end of the air outlet 4 in a one-to-one correspondence with the air outlet 4. The purpose of setting the air induced plate 7 is to actively guide the cooling air to the corresponding air outlet 4, control the flow rate of the cooling air to each group of heat sinks 1 as much as possible, meet the heat dissipation consistency of each battery pack 001 as much as possible, reduce the upper and lower temperature difference in the energy storage box, and make the battery charging and discharging in the energy storage box in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries and the quality of the energy storage box.

[0030] In this embodiment, the air induction plate 7 is inclined downward from front to back, and the diverter hole 8 is provided on the air induction plate 7. The inclined air induction plate 7 can further enhance the initial kinetic energy of the cooling air entering the heat dissipation fins 2, and the staggered diverter hole 8 can ensure that the cooling air enters the next level at the bottom, and the diverter holes 8 provided on the adjacent air induction plates 7 are staggered in the height direction, so that the cooling air entering the next level has the initial kinetic energy to blow to the battery pack 001 after being stored, and then diffuses downward step by step; the air induction plate 7 at the bottom may not have the diverter hole 8 to directly guide the air to the corresponding battery pack for cooling.

[0031] In this embodiment, the diverter holes 8 arranged staggered on the adjacent air guide plates 7 in the height direction have an overlapping area 9. The blowing method from top to bottom can obtain greater initial kinetic energy, which is beneficial to the heat dissipation of the battery pack 001. The setting of the overlapping area 9 can make the cooling air flowing in the height direction have sufficient wind pressure, and the cooling air sent to the heat dissipation fins 2 also has a certain wind pressure under the setting of the air guide plates 7, thereby achieving the purpose of autonomous air supply and return to each layer of battery packs.

[0032] In this embodiment, the air guide plate 7 is provided with a plurality of diverter holes 8, the aperture size of the plurality of diverter holes 8 gradually decreases from front to back, and the spacing between adjacent holes gradually increases from front to back. The closer the diverter holes 8 are to the air outlet 4, the smaller their size and the farther their spacing, the greater the kinetic energy of the air outlet, thereby ensuring the cooling capacity of the heat dissipation fins 2, and in this solution, as shown in FIG. Figure 4 As shown, it shows the positions of the diverter holes 8 on the two air ducting plates 7 from top to bottom. Two air ducting plates 7 are grouped together, and the stacking of the two is repeated downwards. An overlapping area 9 is always reserved in the middle, so that the wind flow from top to bottom passes through each layer of air ducting plates 7, and the cooling of each layer of battery packs is ensured to be consistent as much as possible.

[0033] In this embodiment, the return air duct 5 extends in the height direction, and the return air duct 5 is arranged at the rear side of the end of the heat sink 1. The number of return air ports 6 of the return air duct 5 is consistent with the number of heat sinks 1. The return air ports 6 are arranged at the rear end of the heat sink 1 in a one-to-one correspondence with the heat sink 1, and the aperture sizes of the return air ports 6 gradually decrease from bottom to top. The setting of the return air ports 6 can actively guide the return air, improve the heat dissipation efficiency of the battery pack, and the size becomes smaller as it goes up, which can make up for the controllable temperature difference caused by the insufficient output pressure of some bottom air outlets 4, further ensure the ambient temperature in the energy storage box, and ensure the use temperature of each battery pack 001.

[0034] In this embodiment, Figure 2As shown, the air supply duct 3 is roughly located in the middle of the battery pack 001 in the horizontal direction, and the return air ducts 5 are two symmetrically arranged at both ends of the air supply duct 3. The return air has good consistency and can assist in cooling the heat dissipation fins 2 better. The air supply duct 3 is on the front side of the battery pack 001, and the return air duct 5 is arranged on the rear side of the battery pack 001. The front and back are still based on the air outlet direction. The battery pack is supported in the energy storage box by the battery pack bracket. The return air duct 5 can replace the column of the current battery pack 001 bracket to save cost and space. The setting of two groups of return air ducts 5 is more conducive to the dissipation of heat from the battery pack 001, and the heat dissipation consistency of the battery pack 001 is good, which can ensure the ambient temperature in the energy storage box and the use temperature of a single group of battery packs 001.

[0035] In this embodiment, the heat dissipation fins 2 are multiple pieces, and the multiple pieces of heat dissipation fins 2 are arranged in parallel along the set direction I. The height of the multiple pieces of heat dissipation fins 2 along the set direction I gradually increases from the middle to both sides; the spacing of the multiple pieces of heat dissipation fins 2 along the set direction I gradually decreases from the middle to both ends. Figure 2 and Figure 3 As shown, the set direction I is the horizontal direction of the battery pack 001, the heat dissipating fins 2 extend along the depth direction of the battery pack 001 and are arranged in parallel along the horizontal direction of the battery pack 001, and a plurality of the heat dissipating fins 2 approximately form a wind passing area with a concave middle portion in the cross section in the height direction; the air outlet 4 is directly opposite to the horizontal front end of the heat dissipating fin 2, and the top edge connection line of a plurality of the heat dissipating fins 2 is an arc with a concave middle portion and symmetrical sides. This structure can provide a favorable and fast wind passing channel under air cooling conditions, and can quickly take away the heat of the heat dissipating fins 2 under wind pressure conditions, thereby improving the heat dissipation capacity of the liquid cooling plate.

[0036] In this embodiment, along the set direction I, the head ends of the plurality of heat dissipating fins 2 gradually shrink inward from both sides to the middle. That is, the length of the plurality of heat dissipating fins 2 gradually increases from the middle to both sides, and the plurality of heat dissipating fins 2 approximately form a buffer zone 10 with the head end concave inward on the horizontal cross section; the buffer zone 10 faces the air outlet 4, and along the set direction I, the spacing of the plurality of heat dissipating fins gradually decreases from the middle to both ends, so as to form a structure with better heat dissipation capacity in coordination with the overwinding area. The buffer zone 10 in this solution faces the air outlet 4, and the front end connection line of the plurality of heat dissipating fins 2 is an arc with the middle part concave inward and symmetrical on both sides. The buffer zone 10 can stabilize the wind pressure passing through the heat dissipating fins 2 and reduce the direct wind noise, while meeting the cooling requirements for the battery pack 001.

[0037] The specific structure and distribution of the heat dissipation fins 2 of this solution, together with the specific structure of the air outlet 4 and the return air outlet 6, make the air flow velocity through the horizontal middle part of the battery pack 001 faster, and the internal pressure in the horizontal middle part of the battery pack 001 lower. Under the conditions of negative pressure on both sides of the end and positive pressure on the head end, the cooling efficiency of the battery pack 001 is higher, and the structure with the air outlet 4 on the top and the return air outlet 6 on the bottom can further improve the cooling efficiency of the battery pack 001.

[0038] In this embodiment, the heat sink 1 has a liquid cooling cavity, and the liquid cooling cavity has a coolant flowing perpendicular to the extension direction of the heat sink fins 2. The liquid cooling cavity on the heat sink 1 and the structure in the liquid cooling cavity can be implemented by any liquid cooling plate in the prior art. The liquid inlet and the liquid outlet of the liquid cooling plate are connected in parallel to the liquid cooling system of the battery pack 001, and the efficient cooling of the battery pack 001 is achieved by relying on the current cooling conditions, which will not be repeated here; the external environment cooling and the internal liquid cooling are crossed to avoid the concentration of cold areas and hot areas, improve the effectiveness of heat dissipation, further quickly cool down the battery pack 001, and meet the efficient heat dissipation of the battery pack 001 by the heat sink 1, so that the safety of the battery pack 001 in the energy storage box is guaranteed, and the safety of the energy storage box is improved.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries, characterized in that: A heat dissipation plate is included, wherein the heat dissipation plate has a conducting surface and a heat dissipation surface opposite to each other, the conducting surface is attached to the top surface or the bottom surface of the battery pack, and the heat dissipation surface is provided with heat dissipation fins; It also includes an air supply duct located at the head end of the extension direction of the heat dissipation fins, the air supply duct having an air outlet, and the air outlet direction of the air outlet is consistent with the extension direction of the heat dissipation fins; It also includes a return air duct located at the end of the extension direction of the heat dissipation fins, the return air duct has a return air port, and the return air direction of the return air port is consistent with the extension direction of the heat dissipation fins.

2. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 1 is characterized in that: The air outlet and the return air outlet are arranged opposite to each other in the extension direction of the heat dissipation fins, the middle part of the air outlet in the height direction is higher than the middle part of the air outlet in the height direction, and the middle part of the air outlet in the height direction is close to the heat dissipation surface.

3. The cooling structure for the energy storage charging station for the whole-pack recycling of retired vehicle power batteries according to claim 1 is characterized in that: The air supply duct extends in the height direction, the air supply duct is arranged at the front side of the head end of the heat dissipation plate, an air induction plate for guiding the gas to the air outlet is arranged in the air supply duct, a flow diversion hole is opened on the air induction plate, or a flow diversion hole is formed between the air induction plate and the inner wall of the air supply duct; Several groups of battery packs are stacked in the height direction in the box of the energy storage charging station, and a group of heat sinks are correspondingly arranged on each group of battery packs; the number of air outlets of the air supply duct is consistent with the number of heat sinks, and the air outlets and the heat sinks are arranged at the front end of the heat sink in a one-to-one correspondence; the number of the air induction plates is consistent with the number of air outlets, and the air induction plates and the air outlets are arranged at the front end of the air outlets in a one-to-one correspondence.

4. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 3 is characterized in that: The air induction plate is inclined downward from front to back, and the diversion holes are arranged on the air induction plate. The diversion holes arranged on the adjacent air induction plates are staggered in height direction.

5. The cooling structure for the energy storage charging station for the whole-pack recycling of retired vehicle power batteries according to claim 4 is characterized in that: The diverter holes staggeredly arranged on the adjacent air inducing plates in the height direction have an overlapping area.

6. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 4 is characterized in that: There are a plurality of diversion holes on the air induction plate, and the aperture sizes of the diversion holes gradually decrease from front to back, and the spacing between adjacent through holes gradually increases from front to back.

7. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 1 is characterized in that: The return air duct extends in the height direction and is arranged on the rear side of the end of the heat sink. The number of return air outlets of the return air duct is consistent with the number of heat sinks. The return air outlets and the heat sinks are arranged at the rear end of the heat sink in a one-to-one correspondence, and the aperture sizes of the return air outlets gradually decrease from bottom to top.

8. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 1 is characterized in that: The heat dissipation fins are composed of a plurality of fins, which are arranged in parallel along a set direction I, and the heights of the heat dissipation fins gradually increase from the middle to both sides along the set direction I.

9. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 8 is characterized in that: Along the set direction I, the head ends of a plurality of heat dissipation fins gradually shrink inward from both sides to the middle.

10. The cooling structure for a whole pack recycling energy storage charging station for retired vehicle power batteries according to claim 8, characterized in that: The spacing between the heat dissipation fins along the set direction I gradually decreases from the middle to both ends.

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