Battery pack auxiliary heat dissipation structure for energy storage charging station

Abstract

The invention discloses a battery pack auxiliary heat dissipation structure for an energy storage charging station, which comprises a liquid cooling plate, the liquid cooling plate is provided with a liquid cooling cavity, a turbulent flow column is arranged in the liquid cooling cavity, the turbulent flow column is located in the middle of the horizontal section of the liquid cooling cavity, the liquid cooling cavity is provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the liquid outlet. The turbulent flow column is provided with a plurality of middle turbulent flow pieces protruding towards the liquid inlet, the multiple middle turbulent flow pieces are arranged at intervals, the turbulent flow column is further provided with an overflowing face protruding towards the liquid outlet, auxiliary heat dissipation can be carried out on a battery pack used in an echelon mode, and the safety of the energy storage box is improved.

Description

Technical Field

[0001] The present invention relates to the field of whole-pack utilization of retired power battery packs, and in particular to a battery pack auxiliary heat dissipation structure for an energy storage charging station. 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] However, power battery manufacturers and historical operating data are different, resulting in large differences in their status after retirement and a lack of consistency. Therefore, the standards of some power batteries have certain limitations and cannot clearly regulate the economy, uniformity and safety of each link of cascade utilization.

[0004] Especially after the energy storage box is formed, the heat dissipation efficiency of the battery pack is inconsistent inside the closed box, and it is easy for independent battery packs to overheat and become scrapped, leading to the reorganization or overhaul of the entire box module.

[0005] Therefore, in order to solve the above problems, there is a need for a battery pack auxiliary heat dissipation structure for an energy storage charging station, which can assist in heat dissipation of the battery pack for cascade utilization and improve the safety of the energy storage box. Summary of the invention

[0006] In view of this, an object of the present invention is to overcome the defects in the prior art and provide a battery pack auxiliary heat dissipation structure for an energy storage charging station, which can assist in heat dissipation of battery packs that are used in cascades and improve the safety of the energy storage box.

[0007] The battery pack auxiliary heat dissipation structure for an energy storage charging station of the present invention includes a liquid cooling plate, the liquid cooling plate has a liquid cooling cavity, a spoiler column is arranged in the liquid cooling cavity, the spoiler column is located in the middle of the horizontal cross-section of the liquid cooling cavity, the liquid cooling cavity has a liquid inlet and a liquid outlet, the spoiler column has a middle spoiler plate protruding toward the liquid inlet, the middle spoiler plate is a plurality of plates arranged at intervals, and the spoiler column also has a flow surface protruding toward the liquid outlet.

[0008] Furthermore, the lengths of the plurality of middle spoilers gradually decrease from the middle to both sides, so that the plurality of middle spoilers approximately form a "mountain"-shaped structure with a protruding middle portion.

[0009] Furthermore, the flow surface is a curved surface convex toward the liquid outlet.

[0010] Furthermore, it also includes a front spoiler and a rear spoiler disposed in the liquid cooling chamber;

[0011] The front spoiler is composed of a plurality of pieces, and the plurality of front spoilers are distributed in an approximately "eight" shape on the inner side of the liquid inlet of the liquid cooling chamber, and the narrow "eight" shape formed by the plurality of front spoilers faces the liquid inlet of the liquid cooling chamber;

[0012] The rear spoiler is composed of a plurality of pieces, and the plurality of pieces of the rear spoiler are distributed in an approximately "eight" shape on the inner side of the liquid outlet of the liquid cooling cavity, and the "eight"-shaped narrow opening formed by the plurality of pieces of the rear spoiler faces the liquid outlet of the liquid cooling cavity.

[0013] Furthermore, the front spoiler includes a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape;

[0014] Each left spoiler fin I and each right spoiler fin I are arranged opposite to each other to form a front spoiler fin group in an "eight" shape, and the front spoiler fin group is divided into a plurality of groups, and the plurality of groups of the front spoiler fin groups are distributed on the inner side of the liquid inlet in a nested manner along the liquid inlet direction of the liquid inlet;

[0015] The rear spoiler includes a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape;

[0016] Each left spoiler fin II and each right spoiler fin II are arranged relative to each other to form a group of rear spoiler fins in the shape of an "eight", and the rear spoiler fins are divided into several groups, and the several groups of rear spoiler fins are distributed on the inner side of the liquid outlet in a nested manner along the liquid outlet direction.

[0017] Furthermore, in the front spoiler fin group distributed in a nested manner on the inner side of the liquid inlet, the next-level front spoiler fin group is located on the rear side of the previous-level front spoiler fin group; in the rear spoiler fin group distributed in a nested manner on the inner side of the liquid outlet, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

[0018] Furthermore, the spoiler column is provided with a plurality of functional holes, the plurality of functional holes are spaced apart and distributed on the spoiler column in the height direction, and the functional holes are located between adjacent middle spoilers;

[0019] The density of the functional holes distributed in the middle of the spoiler column in the height direction exceeds the density of the functional holes distributed at both ends of the spoiler column in the height direction.

[0020] Furthermore, the front spoiler is provided with an upper exchange hole, and the rear spoiler is provided with a lower exchange hole.

[0021] Furthermore, the liquid cooling plate is provided with heat dissipation fins located outside the liquid cooling cavity, and the heat dissipation fins are arranged perpendicular to a line connecting a liquid inlet and a liquid outlet of the liquid cooling plate.

[0022] Furthermore, the heat dissipation fins are composed of a plurality of fins, and the heights of the plurality of heat dissipation fins gradually increase from the middle to both sides, so that the plurality of heat dissipation fins approximately form a wind passing area with a concave middle portion in the cross section in the height direction.

[0023] The beneficial effects of the present invention are as follows: the present invention discloses an auxiliary heat dissipation structure for a battery pack in an energy storage charging station. By bonding a liquid cooling plate to the battery pack, the auxiliary heat dissipation structure can directly assist in cooling the battery pack, thereby improving the cooling efficiency of the battery pack. After the battery pack is connected to the energy storage box, the battery pack is cooled by utilizing its own liquid cooling function. The liquid inlet and liquid outlet of the liquid cooling plate of the present solution are connected in parallel to the liquid inlet and liquid outlet of the battery pack. The auxiliary heat dissipation of the battery pack can be achieved by directly utilizing the existing liquid cooling pipeline, thereby increasing the heat dissipation efficiency of the battery pack, controlling the battery pack temperature within a preset range, reducing the possibility of overheating and scrapping of the battery pack due to inconsistent heat dissipation efficiency of the battery pack in the energy storage box, and at the same time improving the safety of the energy storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0027] Figure 3 For the present invention Figure 1 AA structural diagram;

[0028] Figure 4 It is a schematic diagram of the structure of the heat dissipation fin of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the front spoiler of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the spoiler column of the present invention. DETAILED DESCRIPTION

[0031] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of the present invention; Figure 3 For the present invention Figure 1 AA structural diagram; Figure 4 It is a structural schematic diagram of the heat dissipation fin 10 of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the front spoiler 8 of the present invention; Figure 6It is a schematic diagram of the structure of the spoiler column 4 of the present invention; as shown in the figure, the auxiliary heat dissipation structure of the battery pack for the energy storage charging station in this embodiment includes a liquid cooling plate 001, the liquid cooling plate 001 has a liquid cooling cavity 1, a spoiler column 4 is arranged in the liquid cooling cavity 1, the spoiler column 4 is located in the middle of the horizontal cross-section of the liquid cooling cavity 1, the liquid cooling cavity 1 has a liquid inlet 2 and a liquid outlet 3, the spoiler column 4 has a middle spoiler piece 5 protruding toward the liquid inlet 2, the middle spoiler piece 5 is a plurality of pieces arranged at intervals, and the spoiler column 4 also has a flow surface 6 protruding toward the liquid outlet 3.

[0033] The liquid cooling plate 001 is arranged at the top and / or bottom of the reused battery pack in the energy storage charging station. The and / or means that the liquid cooling plate 001 can be independently arranged at the top or bottom of the battery pack, or there are two liquid cooling plates 001 respectively arranged at the top and bottom of the battery pack, which are arranged according to the actual situation and will not be described in detail here;

[0034] More preferably, the liquid cooling plate 001 is fitted with the battery pack so that the auxiliary heat dissipation structure can directly assist in cooling the battery pack, thereby improving the cooling efficiency of the battery pack. After the battery pack is connected to the energy storage box, the battery pack's own liquid cooling function is used to cool it down. The liquid inlet 2 and the liquid outlet 3 of the liquid cooling plate 001 of this solution are connected in parallel to the liquid inlet and the liquid outlet of the battery pack. The existing liquid cooling pipeline can be directly used to complete the auxiliary heat dissipation of the battery pack, thereby increasing the heat dissipation efficiency of the battery pack, controlling the battery pack temperature within a preset range, reducing the battery pack overheating and scrapping due to inconsistent heat dissipation efficiency of the battery pack in the energy storage box, and at the same time improving the safety of the energy storage box.

[0035] The liquid cooling cavity 1 is formed in the liquid cooling plate 001. In the horizontal cross section, the size of the liquid cooling plate 001 and the size of the liquid cooling cavity 1 are substantially consistent with the size of the battery pack, so as to meet the efficient heat dissipation requirements of the battery pack; the horizontal cross section is a cross section perpendicular to the height direction, which will not be described in detail here;

[0036] In this solution, the spoiler column 4 is located in the middle of the horizontal cross section of the liquid cooling chamber 1, and the middle is close to the center of the horizontal cross section of the liquid cooling chamber 1. The heat dissipation range of this position can be wider and more uniform, and the heat can be taken away in time to improve the heat dissipation efficiency of the battery pack. The purpose of setting the spoiler column 4 is also to increase the residence time of the coolant at a specified position in the liquid cooling chamber 1, so as to improve the cooling efficiency of the battery pack and make the cooling of the battery pack more efficient.

[0037] In this solution, the top end of the spoiler column 4 in the height direction is connected to the top of the inner wall of the liquid cooling chamber 1, and the bottom end of the spoiler column 4 in the height direction is connected to the bottom of the inner wall of the liquid cooling chamber 1. On the one hand, the structural strength of the liquid cooling plate 001 itself is increased and a good structural skeleton can be provided. On the other hand, it has a large-area flow resistance effect and a better heat dissipation effect.

[0038] In this embodiment, the spoiler column 4 has a middle spoiler 5 protruding toward the liquid inlet 2, so that the liquid inlet of the liquid cooling chamber 1 is directly cooled by the middle spoiler 5, which can accelerate the cooling efficiency. Furthermore, the middle spoiler 5 is a plurality of pieces arranged at intervals. In this solution, the plurality of middle spoilers 5 are arranged at intervals in a horizontal cross section along a direction perpendicular to the liquid inlet of the liquid cooling chamber 1, so that the heat exchange area is increased and the heat dissipation efficiency is improved; and more accurately, as Figure 3 As shown, the length of the plurality of middle spoilers 5 gradually decreases from the middle to both sides, so that the plurality of middle spoilers 5 approximately form a "mountain"-shaped structure with a protruding middle portion. The said approximation means that there are similarities in structure. For example, the "mountain" shape is a shape that is arranged in parallel in a set direction and is high in the middle and low at both ends, which is more conducive to a clear understanding of the arrangement structure of the present scheme, and will not be repeated here; the plurality of middle spoilers 5 arranged in this way can allow the incoming liquid to not only pass through the spoiler column 4, but also be diverted to the left and right sides horizontally, so that the heat exchange efficiency in the liquid cooling chamber 1 is higher, and the said lateral and left and right corresponding Figure 3 The length direction and the left and right sides of the length direction are not described here; Figure 5 As shown, it is a structure of a middle spoiler 5, wherein a middle exchange hole is provided on the middle spoiler 5 to improve the flow efficiency of the liquid, and the function of dispersing the coolant is better, which is more conducive to ensuring the residence time of the coolant in the entire liquid cooling chamber 1 and improving the cooling efficiency.

[0039] In this embodiment, the spoiler column 4 further has a flow surface 6 protruding toward the liquid outlet 3. The purpose of setting the flow surface 6 is to reduce the coolant collection at the liquid outlet 3 of the liquid cooling chamber 1, which is more conducive to quickly discharging the relatively high-temperature coolant from the liquid cooling chamber 1, thereby improving the heat dissipation efficiency. The flow surface 6 is continuous and protrudes toward the liquid outlet 3 in the form of a curved surface; wherein the center of the curved surface is directly opposite to the center of the liquid outlet 3, so that the coolant is evenly discharged; Figure 3 As shown, the line connecting the liquid inlet 2 and the liquid outlet 3 of the liquid cooling chamber 1 is perpendicular to the horizontal direction, the spoiler column 4 is roughly columnar, the flow surface 6 is the rear end surface of the spoiler column 4, and the middle spoiler 5 is formed on the front end surface of the spoiler column 4. Figure 3In the figure, the direction perpendicular to the horizontal direction is the longitudinal direction, the direction close to the liquid inlet 2 in the longitudinal direction is the front, and the reverse is the rear, which will not be repeated here; the specific structure of the spoiler column 4 allows the coolant to gather between the middle spoiler plates 5, and the middle exchange hole is opened on the middle spoiler plates 5. According to the characteristics that the coolant has initial kinetic energy and continuously enters the liquid cooling chamber 1, combined with the middle spoiler plates 5 distributed in the shape of a "mountain", the relatively high-temperature coolant is promptly diffused to the lateral ends of the spoiler column 4, and combined with the setting of the flow surface 6, there is no liquid accumulation on the back of the spoiler column 4, and the relatively high-temperature coolant in the liquid cooling chamber 1 can be discharged more quickly through the liquid outlet 3, so that the cooling effect of the liquid cooling plate 001 is better, which is more conducive to ensuring the heat dissipation of the battery pack and improving the safety of the energy storage box of the charging station.

[0040] In this embodiment, the spoiler column 4 is provided with functional holes 7, and there are several functional holes 7. The functional holes 7 are spaced apart on the spoiler column 4 in the height direction, and the functional holes 7 are located between adjacent middle spoilers 5. The purpose of setting the functional holes 7 is to provide a diffusion branch for the coolant passing through the spoiler column 4, so that part of the coolant is directly discharged to the back of the spoiler column 4. Combined with the curved flow surface 6, the flow efficiency of the relatively high-temperature coolant in the liquid cooling chamber 1 can be improved, that is, the relatively low-temperature coolant is efficiently gathered at the position of the spoiler column 4, and the relatively high-temperature coolant is efficiently discharged. On the one hand, the loss of the relatively low-temperature coolant is prevented, so that the cooling capacity of the liquid cooling plate 001 is improved. On the other hand, the discharge efficiency of the relatively high-temperature coolant is improved, and the local heat concentration of the liquid cooling plate 001 is reduced, so that the coolant temperature inside the liquid cooling plate 001 is always maintained within the set range, and the overall cooling efficiency of the liquid cooling plate 001 is higher.

[0041] The density of the functional holes 7 distributed in the middle of the spoiler column 4 in the height direction exceeds the density of the functional holes 7 distributed at the two ends of the spoiler column 4 in the height direction; so that the flow rate in the middle of the spoiler column 4 exceeds the flow rate at the upper and lower ends, and the liquid cooling chamber 1 forms a structure in which the flow velocity is large in the middle and small at the ends, and the heat exchange effect is better; further, the aperture size of the functional hole 7 is smaller than the aperture size of the middle exchange hole to ensure that the coolant can be collected at the position of the spoiler column 4. More specifically, the functional hole 7 and the middle exchange hole in this scheme are both circular, and the aperture diameter size of the functional hole 7 is 0.2 to 0.5 times the aperture diameter size of the middle exchange hole. The smaller the size of the functional hole 7 is controlled, the greater the amount of coolant passing through the lateral ends of the battery pack is, so as to control the cooling effect, which will not be repeated here;

[0042] In this embodiment, it also includes a front spoiler 8 and a rear spoiler 9 arranged in the liquid cooling chamber 1; the front spoiler 8 and the rear spoiler 9 in this solution respectively support the upper inner wall and the lower inner wall of the liquid cooling chamber 1, and not only play a supporting function but also have the function of auxiliary heat dissipation, and also have the function of regulating liquid convergence; further, the front spoiler 8 is composed of a plurality of pieces, and a plurality of the front spoilers 8 are approximately distributed in an "eight" shape on the inner side of the liquid inlet 2 of the liquid cooling chamber 1, and the "eight"-shaped narrow opening formed by the plurality of the front spoilers 8 faces the liquid inlet 2 of the liquid cooling chamber 1; the rear spoiler 9 is composed of a plurality of pieces, and a plurality of the rear spoilers 9 are approximately distributed in an "eight" shape on the inner side of the liquid outlet 3 of the liquid cooling chamber 1, and the "eight"-shaped narrow opening formed by the plurality of the rear spoilers 9 faces the liquid outlet 3 of the liquid cooling chamber 1. The front spoiler 8 and the rear spoiler 9 form a nearly rhombus-shaped structure, the spoiler column 4 is located at the center of the rhombus-shaped structure, and the direction close to the spoiler column 4 is the inner side.

[0043] More specifically, Figure 3 As shown, in this embodiment, the front spoiler 8 includes a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape; each left spoiler fin I and each right spoiler fin I are relatively arranged to form a group of front spoiler fin groups in the shape of an "eight", and the front spoiler fin groups are divided into a plurality of groups, and the plurality of front spoiler fin groups are distributed in a nested manner on the inner side of the liquid inlet 2 along the liquid inlet direction of the liquid inlet 2;

[0044] The rear spoiler 9 includes a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape; each left spoiler fin II and each right spoiler fin II are relatively arranged to form a group of rear spoiler fins in the shape of an "eight", and the rear spoiler fin groups are divided into several groups, and the several groups of rear spoiler fin groups are distributed on the inner side of the liquid outlet 3 in a nested manner along the liquid outlet direction of the liquid outlet 3.

[0045] In this embodiment, in the front spoiler fin group distributed in a nested manner on the inner side of the liquid inlet 2, the next-level front spoiler fin group is located on the rear side of the previous-level front spoiler fin group; in the rear spoiler fin group distributed in a nested manner on the inner side of the liquid outlet 3, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

[0046] This program Figure 3 In the figure, the structure of the overall liquid cooling plate 001 is symmetrical with respect to the line connecting the center of the liquid inlet 2 and the center of the liquid outlet 3. The nesting form of the front spoiler fin group and the rear spoiler fin group gradually expands outward and backward, forming a layer-by-layer stacking method similar to the tile roof in a house building, which has the function of guiding the coolant so that the coolant part actively converges to the position where the spoiler column 4 is set, thereby achieving the purpose of high-efficiency cooling.

[0047] In this embodiment, the front spoiler 8 is provided with an upper exchange hole 81, and the rear spoiler 9 is provided with a lower exchange hole. Figure 5 As shown, the upper exchange holes 81 are arranged in two rows, and the upper exchange holes 81 are not arranged in the middle of the front spoiler 8 to ensure the purpose of confluence. The structures of the front spoiler 8, the rear spoiler 9 and the middle spoiler 5 are roughly the same. This scheme only shows the structure of the front spoiler 8, which will not be repeated here. Since the front spoiler 8 and the rear spoiler 9 of this scheme are arranged close to the corner position of the liquid cooling chamber 1, and the corner position happens to be the area where the coolant is difficult to collect and remove, the upper exchange holes 81 and the lower exchange holes provided in this scheme, when there is internal pressure in the liquid cooling chamber 1, the coolant passing through the upper exchange holes 81 and the lower exchange holes diffuses to the corresponding corner position like a jet, which can make the efficiency of liquid heat exchange higher.

[0048] In this embodiment, the liquid cooling plate 001 is provided with heat dissipation fins 10 located outside the liquid cooling cavity 1. The setting of the heat dissipation fins 10 can further accelerate the heat dissipation efficiency of the liquid cooling plate 001, thereby improving the heat dissipation efficiency of the battery pack. The heat dissipation fins 10 are arranged perpendicular to the connection line between the liquid inlet 2 and the liquid outlet 3 of the liquid cooling plate 001. The external environment cooling and the internal liquid cooling are crossed to avoid the concentration of cold areas and hot areas, and improve the effectiveness of heat dissipation; the external environment includes natural cooling or using the air cooling system inside the energy storage box, such as the air conditioner built into the energy storage box, or the air cooling structure used to cool the wiring harness and working equipment, etc. This solution directly connects the outlet of the parallel air duct on the air cooling system inside the energy storage box to the vicinity of the heat dissipation fins 10, which is used to quickly cool the heat dissipation fins 10, meet the liquid cooling plate 001 The efficient heat dissipation of the battery pack ensures the safety of the battery pack in the energy storage box.

[0049] In this embodiment, Figure 1 As shown, the heat dissipation fins 10 are multiple pieces, wherein the heat dissipation fins 10 extend in the horizontal direction, and multiple pieces of heat dissipation fins 10 are arranged in parallel in the longitudinal direction, and the height of multiple pieces of heat dissipation fins 10 in the longitudinal direction gradually increases from the middle to both sides, so that multiple pieces of heat dissipation fins 10 approximately form a concave wind passing area in the middle in the cross section in the height direction. In this solution, the air outlet direction of the external air duct on the air cooling system in the energy storage box is parallel to the horizontal direction, and the air outlet is directly opposite to one end of the horizontal direction of the heat dissipation fin 10. The top edge connection line of multiple pieces of heat dissipation fins 10 is an arc line with a concave middle and symmetrical sides. This structure can provide a favorable and fast wind passing channel under wind cooling conditions, and can quickly take away the heat of the heat dissipation fins 10 under wind pressure conditions, thereby improving the heat dissipation capacity of the liquid cooling plate 001.

[0050] In this embodiment, the length of the plurality of heat dissipation fins 10 gradually increases from the middle to both sides, and the ends of the plurality of heat dissipation fins 10 are located at the lateral ends of the liquid cooling plate 001, so that the plurality of heat dissipation fins 10 approximately form a buffer zone with the head end recessed inward in the horizontal cross section; the buffer zone faces the air outlet direction of the air cooling system in the energy storage box; the spacing of the plurality of heat dissipation fins 10 gradually decreases from the middle to the upper and lower ends, so as to form a structure with better heat dissipation capacity in cooperation with the wind-passing zone, such as Figure 1 As shown, the buffer zone described in this solution is opposite to the air outlet of the air duct, and the front end connecting line of several heat dissipating fins 10 is an arc that is concave inward in the middle and symmetrical on both sides. The buffer zone can stabilize the wind pressure passing through the heat dissipating fins 10 and reduce direct wind noise, while meeting the cooling requirements for the battery pack.

[0051] In this embodiment, the liquid cooling system for supplying liquid to the liquid cooling plate 001 borrows the liquid cooling system of the battery pack, and the air cooling system for cooling the heat dissipation fins 10 borrows the air cooling system of the energy storage box. The temperature of the battery pack is controlled with almost no impact on the liquid cooling system and air cooling system of the current energy storage box, thereby improving the safety of the energy storage box.

[0052] 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 battery pack auxiliary heat dissipation structure for an energy storage charging station, characterized in that: It includes a liquid cooling plate, which has a liquid cooling cavity. A spoiler column is arranged in the liquid cooling cavity, and the spoiler column is located in the middle of the horizontal cross-section of the liquid cooling cavity. The liquid cooling cavity has a liquid inlet and a liquid outlet. The spoiler column has a middle spoiler plate protruding toward the liquid inlet, and the middle spoiler plate is a plurality of plates arranged at intervals. The spoiler column also has a flow surface protruding toward the liquid outlet.

2. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 1, characterized in that: The lengths of the plurality of middle spoilers gradually decrease from the middle to both sides, so that the plurality of middle spoilers approximately form a "mountain"-shaped structure with a protruding middle portion.

3. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 1, characterized in that: The flow surface is a curved surface that protrudes toward the liquid outlet.

4. The battery pack auxiliary heat dissipation structure for an energy storage charging station according to claim 1, characterized in that: Also included are a front spoiler and a rear spoiler disposed in the liquid cooling cavity; The front spoiler is composed of a plurality of pieces, and the plurality of front spoilers are distributed in an approximately "eight" shape on the inner side of the liquid inlet of the liquid cooling chamber, and the narrow "eight" shape formed by the plurality of front spoilers faces the liquid inlet of the liquid cooling chamber; The rear spoiler is composed of a plurality of pieces, and the plurality of pieces of the rear spoiler are distributed in an approximately "eight" shape on the inner side of the liquid outlet of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of pieces of the rear spoiler faces the liquid outlet of the liquid cooling chamber.

5. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 4, characterized in that: The front spoiler comprises a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape; Each left spoiler fin I and each right spoiler fin I are arranged opposite to each other to form a front spoiler fin group in an "eight" shape, and the front spoiler fin group is composed of a plurality of groups, and the plurality of groups of the front spoiler fin groups are distributed on the inner side of the liquid inlet in a nested manner along the liquid inlet direction of the liquid inlet; The rear spoiler includes a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape; Each left spoiler fin II and each right spoiler fin II are arranged relative to each other to form a group of rear spoiler fins in the shape of an "eight", and the rear spoiler fins are divided into several groups, and the several groups of rear spoiler fins are distributed on the inner side of the liquid outlet in a nested manner along the liquid outlet direction.

6. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 5, characterized in that: In the front spoiler fin group distributed in a nested manner on the inner side of the liquid inlet, the next-level front spoiler fin group is located on the rear side of the previous-level front spoiler fin group; in the rear spoiler fin group distributed in a nested manner on the inner side of the liquid outlet, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

7. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 1, characterized in that: The spoiler column is provided with a plurality of functional holes, the plurality of functional holes are spaced apart and distributed on the spoiler column in the height direction, and the functional holes are located between adjacent middle spoilers; The density of the functional holes distributed in the middle of the spoiler column in the height direction exceeds the density of the functional holes distributed at both ends of the spoiler column in the height direction.

8. The auxiliary heat dissipation structure of a battery pack for an energy storage charging station according to claim 4, characterized in that: The front spoiler is provided with an upper exchange hole, and the rear spoiler is provided with a lower exchange hole.

9. The battery pack auxiliary heat dissipation structure for an energy storage charging station according to claim 1, characterized in that: The liquid cooling plate is provided with heat dissipation fins located outside the liquid cooling cavity, and the heat dissipation fins are arranged perpendicular to the connecting line of the liquid inlet and the liquid outlet of the liquid cooling plate.

10. The battery pack auxiliary heat dissipation structure for an energy storage charging station according to claim 9, characterized in that: The heat dissipation fins are composed of a plurality of fins, and the heights of the plurality of heat dissipation fins gradually increase from the middle to both sides.

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