Air-cooled energy storage battery pack and air-cooled heat dissipation system

Abstract

The utility model discloses an air-cooled energy storage battery pack and an air-cooled heat dissipation system, and relates to the technical field of battery pack heat dissipation, the air-cooled energy storage battery pack comprises a battery pack box body, an air duct base, a first sealing gasket and a fan; the air duct base is arranged at the bottom of the battery pack box body, the first sealing gasket is arranged at the joint of the air duct base and the battery pack box body, a battery module in the battery pack box body is attached to the top surface of the air duct base, the bottom surface of the air duct base is provided with an air duct grid and a supporting seat with a solid structure, and the supporting seat is arranged at the edge of the air duct grid; the fan is arranged outside the battery pack box body and is used for increasing the air flowing speed at the air duct grating; wherein the top surface and the bottom surface of the air duct base are not communicated. The air duct grating and the fan are used for air-cooling heat dissipation of the battery pack, the structure is simple, maintenance is convenient, installation is easy, and cost is low; the battery module is sealed in the battery pack box body and the air duct base, and the sealing gasket is arranged at the joint of the air duct base and the battery pack box body, so that the dustproof and waterproof effects of the battery pack can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery pack heat dissipation, and in particular to an air-cooled energy storage battery pack and an air-cooled heat dissipation system. Background Art

[0002] Currently, energy storage battery packs primarily come in two forms: air-cooled and liquid-cooled. Air-cooled battery packs primarily consist of a battery pack and a fan. Due to their internal air duct design, the pack's water and dustproof rating is typically only IP20. Battery packs, which require a higher protection rating of IP65 or higher, are typically liquid-cooled. Liquid-cooled battery packs primarily integrate the battery pack with a bottom liquid cooling plate. However, these packs are complex, costly, and difficult to implement, making installation and subsequent maintenance relatively challenging.

[0003] Therefore, how to provide an air-cooled energy storage battery pack with a simple structure, convenient maintenance, easy installation, and low cost, and how to improve the dust and water resistance of the air-cooled energy storage battery pack are problems that need to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this application is to provide an air-cooled energy storage battery pack and an air-cooled heat dissipation system to solve the problem of low dust and water resistance.

[0005] To solve the above technical problems, the present application provides an air-cooled energy storage battery pack, comprising: a battery pack box, an air duct base, a first sealing gasket and a fan;

[0006] The air duct base is arranged at the bottom of the battery pack case, the first sealing gasket is arranged at the connection between the air duct base and the battery pack case, the battery module in the battery pack case is attached to the top surface of the air duct base, the bottom surface of the air duct base is provided with an air duct grille and a support seat of a solid structure, the support seat is arranged at the edge of the air duct grille, the fan is placed outside the battery pack case, and the fan is used to increase the air flow speed at the air duct grille; wherein, the top surface and the bottom surface of the air duct base are not connected.

[0007] Optionally, a CCS assembly and a connector are also included. The CCS assembly is arranged in the battery pack case and located on the top of the battery module. The side wall of the battery pack case is provided with a mounting hole, and the connector is connected to the CCS assembly through the mounting hole.

[0008] Optionally, it also includes a first protective cover and a second sealing gasket, wherein the first protective cover is provided with a first through hole, the first protective cover is connected to the side wall of the battery pack case so that the connector is sealed through the first through hole, and the second sealing gasket is provided at the connection between the first protective cover and the battery pack case.

[0009] Optionally, it also includes a second protective cover and a fire extinguisher arranged in the second protective cover, the second protective cover is installed on the side wall of the battery pack case, and a third sealing gasket is provided at the connection between the second protective cover and the battery pack case.

[0010] Optionally, it also includes a ring-shaped bundling piece and a first bolt. The ring-shaped bundling piece is arranged around the side wall of the battery module and is used to bundle and fix the battery module. The ring-shaped bundling piece is provided with a plurality of second through holes, and the top surface of the air duct base is provided with a plurality of first screw holes. The first screw holes are arranged in a one-to-one correspondence with the second through holes. The first bolt passes through the second through hole and is threadedly connected to the first screw hole to fix the battery module on the air duct base.

[0011] Optionally, the support base is arranged on both side edges of the air duct grille, the air duct grille includes a plurality of grille plates arranged parallel to each other, and the wind direction of the fan is the same as the extension direction of the channel formed by two adjacent grille plates.

[0012] The present application also provides an air-cooled heat dissipation system, including a placement rack and the air-cooled energy storage battery pack. The placement rack is provided with a multi-layer support component, and the support component is used to support the air-cooled energy storage battery pack, PCS and PDU.

[0013] Optionally, the placement rack includes a first support rod, a second support rod, a third support rod, a fourth support rod, a hollow top plate and a hollow bottom plate, the tops of the first support rod, the second support rod, the third support rod and the fourth support rod are respectively connected to the four corners of the hollow top plate, the first support rod, the second support rod, the third support rod and the near bottom of the fourth support rod are respectively connected to the four corners of the hollow bottom plate, the multiple layers of the support components are spaced apart between the hollow top plate and the hollow bottom plate, the support component includes a first limiting plate and a second limiting plate, the two ends of the first limiting plate are respectively connected to the first support rod and the second support rod, the two ends of the second limiting plate are respectively connected to the third support rod and the fourth support rod, and the first limiting plate and the second limiting plate are at the same height, the first limiting plate and the second limiting plate are used to abut the support seat of the air-cooled energy storage battery pack.

[0014] Optionally, second screw holes are provided at intervals in the height direction of the first support rod, the second support rod, the third support rod and the fourth support rod, third through holes are provided at both ends of the first limiting plate and both ends of the second limiting plate, and second bolts pass through the third through holes and are threadedly connected to the second screw holes.

[0015] Optionally, the first limiting plate and the second limiting plate are both right-angle bent plates, the right-angle bent plates are integrated by a longitudinal plate and a transverse plate, the third through holes are respectively opened at both ends of the longitudinal plate, and the transverse plate is used to abut the support seat.

[0016] The present application provides an air-cooled energy storage battery pack, comprising: a battery pack case, an air duct base, a first sealing gasket, and a fan; the air duct base is disposed at the bottom of the battery pack case, the first sealing gasket is disposed at the connection between the air duct base and the battery pack case, the battery modules in the battery pack case are attached to the top surface of the air duct base, the bottom surface of the air duct base is provided with an air duct grille and a support seat of a solid structure, the support seat is disposed at the edge of the air duct grille, the fan is externally disposed on the battery pack case, and the fan is used to increase the air flow speed at the air duct grille; wherein the top and bottom surfaces of the air duct base are not connected. Using the air duct grille and the fan to cool the battery pack with air has a simple structure, convenient maintenance, easy installation, and low cost; enclosing the battery module within the battery pack case and the air duct base, and providing a sealing gasket at the connection between the air duct base and the battery pack case, can enhance the dust and water resistance of the battery pack. In addition, the fan is external, which facilitates fan control and maintenance; the air duct grille reduces the weight of the air duct base while increasing the strength of the base, enabling it to better support the battery module while reducing its own deformation; the support seat of the solid structure at the edge of the air duct grille can ensure the bottom support of the battery pack during placement and transportation, avoiding damage to the bottom air duct grille and affecting the heat dissipation effect.

[0017] The present application provides an air-cooled heat dissipation system, including an air-cooled energy storage battery pack, and the specific effects are as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A structural diagram of the first air-cooled energy storage battery pack provided in an embodiment of the present application;

[0020] Figure 2 A structural diagram of the second air-cooled energy storage battery pack provided in an embodiment of the present application;

[0021] Figure 3 A structural diagram of an air duct base provided in an embodiment of the present application;

[0022] Figure 4 An exploded view of the first air-cooled energy storage battery pack provided in an embodiment of the present application;

[0023] Figure 5 An exploded view of the second air-cooled energy storage battery pack provided in an embodiment of the present application;

[0024] Figure 6 A structural diagram of a placement rack provided in an embodiment of the present application;

[0025] The accompanying figures are numbered as follows: 1 - battery pack case, 2 - air duct base, 3 - connector, 4 - first protective cover, 5 - second protective cover, 6 - first sealing gasket, 7 - battery module, 8 - CCS assembly, 9 - second sealing gasket, 10 - third sealing gasket, 11 - ring-shaped binding member, 12 - first bolt, 13 - first support rod, 14 - second support rod, 15 - third support rod, 16 - fourth support rod, 17 - hollow top plate, 18 - hollow bottom plate, 19 - first limiting plate, 20 - second limiting plate, 201 - air duct grille, 202 - support base. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The core of this application is to provide an air-cooled energy storage battery pack and air-cooled heat dissipation system with a simple structure, convenient maintenance, easy installation, and low cost, and to improve the dust and water proof effect of the air-cooled energy storage battery pack.

[0028] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] Figure 1 This is a structural diagram of the first air-cooled energy storage battery pack provided in an embodiment of the present application. Figure 2 This is a structural diagram of the second air-cooled energy storage battery pack provided in an embodiment of the present application. Figure 3 A structural diagram of an air duct base provided in an embodiment of the present application is shown as follows: Figures 1 to 3As shown, the air-cooled energy storage battery pack includes: a battery pack case 1, an air duct base 2, a first sealing gasket 6 and a fan; the air duct base 2 is arranged at the bottom of the battery pack case 1, and the first sealing gasket 6 is arranged at the connection between the air duct base 2 and the battery pack case 1. The battery module 7 in the battery pack case 1 is attached to the top surface of the air duct base 2, and the bottom surface of the air duct base 2 is provided with an air duct grille 201 and a support base 202 of a solid structure. The support base 202 is arranged at the edge of the air duct grille 201, and the fan is externally placed on the battery pack case 1. The fan is used to increase the air flow speed at the air duct grille 201; wherein, the top surface and the bottom surface of the air duct base 2 are not connected.

[0030] In the embodiment of the present application, the shape and size of the battery pack case 1 are set according to the shape and size of the battery module 7. The first sealing gasket 6 is set along the edge of the connection between the air duct base 2 and the battery pack case 1. The first sealing gasket 6 can be made of rubber. The battery module 7 is set close to the air duct base 2. The heat generated by the battery module 7 is directly transferred to the air duct base 2. The air duct grille 201 evenly distributed at the bottom of the air duct base 2 increases the contact area between the base bottom and the air, so that the heat transferred from the battery module 7 to the air duct base 2 can be quickly transferred to the air for heat dissipation. The fan can increase the air flow speed at the air duct grille 201, further accelerating the heat dissipation of the battery module 7. Figure 3 As shown, the embodiment of the present application also provides a support base 202 of a solid structure at the edge of the air duct grille 201. The support base 202 can be arranged around the air duct grille 201, or on both sides of the air duct grille 201, or at the four corners of the air duct grille 201. The support base 202 is a solid structure that can ensure the bottom support of the battery pack during placement and transportation, and prevent the bottom air duct grille 201 from being damaged, which would affect the heat dissipation effect. The bottom of the air duct grille 201 can be flush with the bottom of the support base 202, or slightly lower than the bottom of the support base 202. As a feasible embodiment, the support base 202 is provided on both sides of the air duct grille 201. The air duct grille 201 includes a plurality of grille plates arranged parallel to each other. The wind direction of the fan is the same as the extension direction of the channel formed by two adjacent grille plates, thereby further improving the heat dissipation effect.

[0031] The embodiment of the present application provides an air-cooled energy storage battery pack, comprising: a battery pack case 1, an air duct base 2, a first sealing gasket 6, and a fan. The air duct base 2 is disposed at the bottom of the battery pack case 1, the first sealing gasket 6 is disposed at the connection between the air duct base 2 and the battery pack case 1, the battery module 7 in the battery pack case 1 is attached to the top surface of the air duct base 2, the bottom surface of the air duct base 2 is provided with an air duct grille 201 and a solid support base 202, the support base 202 being disposed at the edge of the air duct grille 201, and the fan is externally disposed on the battery pack case 1, the fan being used to increase the air flow velocity at the air duct grille 201; wherein the top and bottom surfaces of the air duct base are not connected. The air duct grille 201 and the fan are used to cool the battery pack with air, resulting in a simple structure, convenient maintenance, easy installation, and low cost. The battery module 7 is enclosed within the battery pack case 1 and the air duct base 2, and a sealing gasket is disposed at the connection between the air duct base 2 and the battery pack case 1, thereby enhancing the dust and water resistance of the battery pack. In addition, the fan is externally located, making fan control and maintenance more convenient; the air duct grille 201 reduces the weight of the air duct base 2 while increasing the strength of the base, enabling it to better support the battery module 7 while reducing its own deformation; the support base 202 of the solid structure at the edge of the air duct grille 201 can ensure the bottom support of the battery pack during placement and transportation, preventing the bottom air duct grille 201 from being damaged, which would affect the heat dissipation effect.

[0032] Based on the above embodiments, Figure 4 This is an exploded view of the first air-cooled energy storage battery pack provided in an embodiment of the present application. Figure 5 The exploded diagram of the second air-cooled energy storage battery pack provided in the embodiment of the present application, combined with Figure 4 、 Figure 5 and Figure 1 As shown, the battery pack also includes an integrated busbar (Cells Contact System, CCS) assembly and connector 3. CCS assembly 8 is located within the battery pack housing 1 and on top of the battery module 7. The sidewalls of the battery pack housing 1 are provided with mounting holes, through which connector 3 connects to CCS assembly 8. The CCS assembly 8 primarily functions to enable high-voltage series and parallel connection of battery cells and temperature and voltage sampling. Connector 3 ensures the transmission of power and signals while enabling quick disconnection when necessary to facilitate battery pack maintenance and replacement.

[0033] Furthermore, it includes a first protective cover 4 and a second sealing gasket 9. The first protective cover 4 is provided with a first through-hole and is connected to the side wall of the battery pack case 1 so that the connector 3 can pass through the first through-hole in a sealed manner. The second sealing gasket 9 is provided at the connection between the first protective cover 4 and the battery pack case 1. The first protective cover 4 can be installed on the side wall of the battery pack case 1 by bolts. The second sealing gasket 9 is provided around the edge of the connection between the first protective cover 4 and the battery pack case 1 to ensure dust and water resistance.

[0034] Based on the above embodiments, Figure 1 As shown, the embodiment of the present application further includes a second protective cover 5 and a fire extinguisher disposed within the second protective cover 5. The second protective cover 5 is mounted on the side wall of the battery pack case 1, and a third sealing gasket 10 is provided at the connection between the second protective cover 5 and the battery pack case 1. The second protective cover 5 can also be mounted on the side wall of the battery pack case 1 by bolts. The third sealing gasket 10 is provided around the edge of the connection between the second protective cover 5 and the battery pack case 1 to ensure dust and water resistance.

[0035] Based on the above embodiments, Figure 4 and Figure 5 As shown, the embodiment of the present application further includes a ring-shaped binding member 11 and a first bolt 12. The ring-shaped binding member 11 is disposed around the side wall of the battery module 7 and is used to bind and secure the battery module 7. The ring-shaped binding member 11 is provided with multiple second through-holes, and the top surface of the air duct base 2 is provided with multiple first screw holes, which are arranged one-to-one with the second through-holes. The first bolt 12 passes through the second through-holes and is threadedly connected to the first screw holes to secure the battery module 7 to the air duct base 2. Multiple groups of battery modules 7 are disposed within the battery pack case 1. The battery modules 7 are rectangular in shape. The ring-shaped binding member 11 surrounds the battery modules 7 and binds them. The ring-shaped binding member 11 is a rectangular ring with second through-holes disposed at the four corners of the ring-shaped binding member 11. The first bolt 12 passes through the second through-holes and is connected to the first screw holes on the air duct base 2, which can firmly secure the battery modules 7 to the air duct base 2. Specifically, a group of battery modules 7 can be bound using multiple ring-shaped binding members 11.

[0036] The present application also provides an air-cooled heat dissipation system, including a placement rack and the above-mentioned air-cooled energy storage battery pack. The placement rack is provided with multiple layers of support components, which are used to support the air-cooled energy storage battery pack, process control system (PCS) and power distribution unit (PDU). The PCS and PDU can be placed on one layer, and the rest can be placed on the air-cooled energy storage battery pack.

[0037] Figure 6 A structural diagram of a placement rack provided in an embodiment of the present application is shown as follows: Figure 6As shown, the placement rack of the embodiment of the present application includes a first support rod 13, a second support rod 14, a third support rod 15, a fourth support rod 16, a hollow top plate 17 and a hollow bottom plate 18. The tops of the first support rod 13, the second support rod 14, the third support rod 15 and the fourth support rod 16 are respectively connected to the four corners of the hollow top plate 17, and the near bottoms of the first support rod 13, the second support rod 14, the third support rod 15 and the fourth support rod 16 are respectively connected to the four corners of the hollow bottom plate 18. The support assembly is spaced between the hollow top plate 17 and the hollow bottom plate 18, and the support assembly includes a first limiting plate 19 and a second limiting plate 20. The two ends of the first limiting plate 19 are respectively connected to the first support rod 13 and the second support rod 14, and the two ends of the second limiting plate 20 are respectively connected to the third support rod 15 and the fourth support rod 16, and the first limiting plate 19 and the second limiting plate 20 are located at the same height. The first limiting plate 19 and the second limiting plate 20 are used to abut the support seat 202 of the air-cooled energy storage battery pack.

[0038] The first limiting plate 19 and the second limiting plate 20 in the embodiment of the present application are supported on both sides of the air duct base 2, that is, the first limiting plate 19 and the second limiting plate 20 are respectively abutted against the support seats 202 on both sides of the air duct grille 201, so that the air duct grille 201 can be completely exposed to the air without affecting its heat dissipation effect. The design of the first support rod 13, the second support rod 14, the third support rod 15, the fourth support rod 16, the hollow top plate 17 and the hollow bottom plate 18 is also to prevent the battery pack from being enclosed on all sides, thereby facilitating the heat dissipation of the battery pack.

[0039] Based on the above embodiment, second screw holes are provided at intervals in the height direction of the first support rod 13, the second support rod 14, the third support rod 15 and the fourth support rod 16 in the embodiment of the present application, third through holes are provided at both ends of the first limiting plate 19 and the second limiting plate 20, and second bolts pass through the third through holes and are threadedly connected to the second screw holes. The first limiting plate 19 in the embodiment of the present application is connected to the first support rod 13 and the second support rod 14 respectively by bolts, and the second limiting plate 20 is connected to the third support rod 15 and the fourth support rod 16 respectively by bolts. Based on the detachable connection method, some support components can be removed as needed, or the distance between adjacent support components can be changed to adapt to battery packs of different heights.

[0040] Based on the above embodiment, the first limiting plate 19 and the second limiting plate 20 of the present application are both right-angled plates, which are integrated with a longitudinal plate and a transverse plate. The longitudinal plates are respectively provided with third through-holes at both ends, and the transverse plate is used to abut against the support seat 202. The longitudinal plates are provided with third through-holes at both ends, and the ends of the longitudinal plates are fixed to the support rods with bolts. The transverse plate is perpendicular to the support rods to support the battery pack. The design of the right-angled plates facilitates connection to the support rods while also being able to withstand heavy loads.

[0041] Based on the above embodiment, the bottoms of the first support rod 13, the second support rod 14, the third support rod 15, and the fourth support rod 16 are all equipped with universal wheels with brake devices. The universal wheels facilitate the transportation of the entire placement rack, and the brake device can lock the universal wheels, so that the placement rack can be well locked when needed.

[0042] The above is a detailed introduction to the air-cooled energy storage battery pack and air-cooled heat dissipation system provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. It should be noted that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0043] It should also be noted that, in this specification, 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 such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

Claims

1. An air-cooled energy storage battery pack, characterized in that: include: Battery pack body (1), air duct base (2), first sealing gasket (6) and fan; The air duct base (2) is arranged at the bottom of the battery pack case (1), the first sealing gasket (6) is arranged at the connection between the air duct base (2) and the battery pack case (1), the battery module (7) in the battery pack case (1) is attached to the top surface of the air duct base (2), the bottom surface of the air duct base (2) is provided with an air duct grille (201) and a support seat (202) of a solid structure, the support seat (202) is arranged at the edge of the air duct grille (201), the fan is externally arranged on the battery pack case (1), and the fan is used to increase the air flow speed at the air duct grille (201); wherein the top surface and the bottom surface of the air duct base (2) are not connected.

2. The air-cooled energy storage battery pack according to claim 1, characterized in that: It also includes a CCS assembly (8) and a connector (3), wherein the CCS assembly (8) is arranged in the battery pack case (1) and is located on the top of the battery module (7), and a mounting hole is provided on the side wall of the battery pack case (1), and the connector (3) is connected to the CCS assembly (8) through the mounting hole.

3. The air-cooled energy storage battery pack according to claim 2, characterized in that: The battery pack further comprises a first protective cover (4) and a second sealing gasket (9), wherein the first protective cover (4) is provided with a first through hole, the first protective cover (4) is connected to the side wall of the battery pack case (1), so that the connector (3) passes through the first through hole in a sealed manner, and the second sealing gasket (9) is provided at the connection between the first protective cover (4) and the battery pack case (1).

4. The air-cooled energy storage battery pack according to claim 1, characterized in that: The battery pack further comprises a second protective cover (5) and a fire extinguisher arranged in the second protective cover (5); the second protective cover (5) is mounted on the side wall of the battery pack case (1); and a third sealing gasket (10) is provided at the connection between the second protective cover (5) and the battery pack case (1).

5. The air-cooled energy storage battery pack according to claim 1, characterized in that: The invention also includes an annular bundling member (11) and a first bolt (12). The annular bundling member (11) is arranged around the side wall of the battery module (7) and is used to bundle and fix the battery module (7). The annular bundling member (11) is provided with a plurality of second through holes. The top surface of the air duct base (2) is provided with a plurality of first screw holes. The first screw holes are arranged in a one-to-one correspondence with the second through holes. The first bolt (12) passes through the second through holes and is threadedly connected to the first screw hole to fix the battery module (7) on the air duct base (2).

6. The air-cooled energy storage battery pack according to claim 1, characterized in that: The support seat (202) is arranged on both side edges of the air duct grille (201); the air duct grille (201) comprises a plurality of grille plates arranged parallel to each other; the wind direction of the fan is the same as the extension direction of the channel formed by two adjacent grille plates.

7. An air cooling system, characterized in that: It comprises a placement rack and the air-cooled energy storage battery pack according to any one of claims 1 to 6, wherein the placement rack is provided with a multi-layer support assembly, and the support assembly is used to support the air-cooled energy storage battery pack, PCS and PDU.

8. The air cooling and heat dissipation system according to claim 7, characterized in that: The placement rack includes a first support rod (13), a second support rod (14), a third support rod (15), a fourth support rod (16), a hollow top plate (17) and a hollow bottom plate (18), wherein the tops of the first support rod (13), the second support rod (14), the third support rod (15) and the fourth support rod (16) are respectively connected to the four corners of the hollow top plate (17), and the near bottoms of the first support rod (13), the second support rod (14), the third support rod (15) and the fourth support rod (16) are respectively connected to the four corners of the hollow bottom plate (18), and the multiple layers of the support assembly are spaced The support assembly is arranged between the hollow top plate (17) and the hollow bottom plate (18), and includes a first limiting plate (19) and a second limiting plate (20), wherein two ends of the first limiting plate (19) are respectively connected to the first support rod (13) and the second support rod (14), and two ends of the second limiting plate (20) are respectively connected to the third support rod (15) and the fourth support rod (16), and the first limiting plate (19) and the second limiting plate (20) are located at the same height, and the first limiting plate (19) and the second limiting plate (20) are used to abut the support seat (202) of the air-cooled energy storage battery pack.

9. The air cooling and heat dissipation system according to claim 8, characterized in that: Second screw holes are provided at intervals in the height direction of the first support rod (13), the second support rod (14), the third support rod (15) and the fourth support rod (16); third through holes are provided at both ends of the first limiting plate (19) and the second limiting plate (20); second bolts pass through the third through holes and are threadedly connected to the second screw holes.

10. The air cooling and heat dissipation system according to claim 9, characterized in that: The first limiting plate (19) and the second limiting plate (20) are both right-angled bent plates, each of which is formed by integrating a longitudinal plate and a transverse plate. The third through hole is respectively provided at both ends of the longitudinal plate, and the transverse plate is used to abut against the support seat (202).

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