Air-cooled heat dissipation energy storage battery cabinet and energy storage device
By designing air conditioners with air supply channels and return channels in the energy storage battery cabinet, the high cost of air-cooled cooling system and inconvenient maintenance are solved, and the uniform heat dissipation of the battery pack and the stability of the system are improved.
Patent Information
- Application Number
- CN202420101279.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-16
AI Technical Summary
Among the existing energy storage devices, the air-cooled cooling system has a high cost and is inconvenient to repair when the exhaust fan fails, which affects the stability and footprint of the system.
Design an air-cooled heat-dissipation energy storage battery cabinet, and the air conditioner is installed on the top of the cabinet body. Through the coordination of the air supply channel and the return air channel, the uniform distribution and return of the cold air can be achieved, avoid interference from hot and cold air, simplify the structure, reduce costs, and Improve maintenance convenience.
It realizes uniform heat dissipation of the battery pack by cold air, reduces system cost and floor area, simplifies the air duct structure, and improves the convenience of maintenance and system stability.
Smart Images
Figure CN222355207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy storage devices, and in particular to an air-cooled heat dissipation energy storage battery cabinet and an energy storage device. Background Art
[0002] Existing energy storage devices usually have lithium-ion battery packs in a battery cabinet. The battery packs generate heat during the charging and discharging process. The heat comes from the internal resistance of the battery packs themselves. The more battery packs there are inside the battery cabinet, the more heat is generated. As the heat accumulates, the temperature of the environment inside the battery cabinet increases significantly. The life of the battery pack is closely related to its operating temperature.
[0003] At present, the heat dissipation structure of air-cooled energy storage systems is mostly equipped with air conditioners and exhaust fans, or a large number of turbulent fans are designed in the air supply duct to dissipate heat from the battery pack. This method greatly increases the heat dissipation cost of the energy storage system. When the exhaust fan fails, the system temperature difference will increase rapidly, making maintenance inconvenient. In addition, placing an air conditioner or wall-mounted air conditioner at the end of the battery cabinet to achieve heat dissipation will increase the floor space of the entire battery system and affect the layout of the power station. Utility Model Content
[0004] The utility model solves the problem that the cost of arranging an air conditioner and a fan structure in an existing energy storage battery cabinet is relatively high and maintenance is inconvenient when an exhaust fan fails.
[0005] In order to solve the above problems, the utility model proposes the following technical solutions:
[0006] An air-cooled heat dissipation energy storage battery cabinet comprises a cabinet, an air conditioner and a battery rack for placing a battery pack, wherein a mounting cavity is arranged on the top of the cabinet, the air conditioner is installed in the mounting cavity, the front and rear side walls of the mounting cavity are respectively provided with a cabinet air inlet and a cabinet air outlet, the front and rear side walls of the air conditioner are respectively provided with an external air inlet and an external air outlet, a first air supply port close to the external air inlet and a first air return port close to the external air outlet are arranged on the bottom plate of the air conditioner, and a second air supply port corresponding to the position of the first air supply port and a second air return port corresponding to the position of the first air return port are arranged on the bottom wall of the mounting cavity;
[0007] The battery rack is used to be installed inside the cabinet, and the front wall of the battery rack and the front inner wall of the cabinet are combined to form an air supply channel, and the upper end opening of the air supply channel is aligned with the second air supply port; the rear wall of the battery rack and the rear inner wall of the cabinet are combined to form a return air channel, and the upper end opening of the return air channel is aligned with the second return air port.
[0008] The utility model provides an air-cooled heat dissipation energy storage battery cabinet and energy storage device, which has but is not limited to the following beneficial effects compared with the prior art:
[0009] During operation, the airflow enters the interior of the air conditioner from the cabinet air inlet and the air inlet outside the air conditioner, and then the cold air enters the battery cabinet through the first air supply port and the second air supply port. Since the upper opening of the air supply channel is aligned with the second air supply port, and the upper opening of the return air channel is aligned with the second return air port, the cold air entering the battery cabinet first enters the air supply channel, and then enters the return air channel through the battery rack, and is discharged from the return air channel through the second return air port, the first return air port, the external air port, and the cabinet air outlet, so as to ensure that the hot and cold air at the front and rear ends of the air conditioner do not interfere with each other. Among them, the air conditioner is arranged on the top of the battery cabinet, which does not increase the floor space of the battery cabinet and does not affect the internal layout of the battery cabinet; when the cold air inside the battery cabinet passes through the battery rack, the cold air evenly dissipates the heat of the battery pack. The air supply channel and the return air channel cooperate with each other, and the structure is relatively simple. No additional fan is added, which is conducive to reducing costs, and the air duct maintenance is simple and convenient.
[0010] Optionally, the battery rack includes a first bracket arranged along a first direction, a second bracket arranged along a second direction, and a third bracket arranged along a third direction, and the first bracket, the second bracket and the third bracket are connected to form a plurality of accommodating spaces, and the plurality of accommodating spaces are used to accommodate a plurality of the battery packs.
[0011] Optionally, a plurality of ventilation holes are evenly spaced apart on the plurality of third brackets.
[0012] Optionally, a plurality of through holes are provided on the front and rear side walls of the air conditioner to form the external air inlet and the external air outlet; or, through openings are formed on the front and rear side walls of the air conditioner, and an air inlet plate and an air outlet plate are respectively provided at the two through openings, and a plurality of through holes are provided on the air inlet plate and the air outlet plate to form the external air inlet and the external air outlet.
[0013] Optionally, a thermal insulation layer is provided on the top of the cabinet, the bottom wall of the installation cavity includes the thermal insulation layer, and the second air supply port and the second air return port both penetrate the thermal insulation layer.
[0014] Optionally, shutters and dust-proof filter cotton are provided at the cabinet air inlet and the cabinet air outlet, and the dust-proof filter cotton is provided on the side of the shutter facing the installation cavity; the blades of the shutter are in an inverted V-shaped structure.
[0015] Optionally, the upper end of the installation cavity is an open structure, and a side wall of the installation cavity is provided with an installation opening, and the air conditioner enters the installation cavity through the installation opening; the air conditioner is provided with a front wind shield and a rear wind shield on the left and right sides respectively, the front wind shield is used to introduce air into the second air supply outlet, and the rear wind shield is used to guide the air discharged from the second return air outlet.
[0016] Optionally, air enters the interior of the air conditioner from the cabinet air inlet and the external air inlet of the air conditioner, and then enters the air supply channel of the cabinet through the first air supply port and the second air supply port, and enters the return air channel through the battery rack, and finally passes through the second return air port, the first return air port, the external air port and is discharged from the cabinet air outlet.
[0017] The utility model also provides an energy storage device, including a battery pack and the air-cooled heat dissipation energy storage battery cabinet as described above.
[0018] Optionally, the front wall and the rear wall of the shell of the battery pack are provided with second through holes, and the left and right side walls of the shell are provided with first through holes, and the aperture of the first through hole is smaller than the aperture of the second through hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of the air-cooled heat dissipation energy storage battery cabinet and the energy storage device according to an embodiment of the utility model;
[0020] Figure 2 A top view of the air-cooled heat dissipation energy storage battery cabinet according to an embodiment of the utility model;
[0021] Figure 3 This is a cross-sectional structural diagram of an air-cooled heat storage battery cabinet and a battery pack according to an embodiment of the utility model;
[0022] Figure 4 For the utility model embodiment Figure 3 A schematic diagram of the partially enlarged structure at center A;
[0023] Figure 5 This is a schematic diagram of the air conditioning structure of an embodiment of the utility model;
[0024] Figure 6 A schematic diagram of the battery rack and battery pack structure of an embodiment of the utility model;
[0025] Figure 7 For the utility model embodiment Figure 6 A schematic diagram of the partially enlarged structure at B in the middle;
[0026] Figure 8 This is a schematic diagram of the battery pack structure of an embodiment of the utility model.
[0027] Description of reference numerals:
[0028] 1 cabinet, 10 installation cavity, 100 insulation layer, 11 cabinet air inlet, 12 cabinet air outlet, 13 second air supply outlet, 14 second air return outlet, 15 shutter, 16 dust filter cotton, 17 front wind shield, 18 rear wind shield, 2 air conditioner, 21 external air inlet, 22 external air outlet, 23 first air supply outlet, 24 first return air outlet, 3 battery rack, 31 first bracket, 32 second bracket, 33 third bracket, 34 ventilation hole, 4 air supply channel, 5 return air channel, 6 battery pack, 61 second through hole, 62 first through hole, 7 electrical cabinet. DETAILED DESCRIPTION
[0029] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.
[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0031] It should be noted that, in the coordinate system XYZ provided in this document, the positive direction of the X-axis represents the right, the reverse direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom; the meanings of the Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] See also Figure 1-Figure 8The utility model provides an air-cooled heat dissipation energy storage battery cabinet, including a cabinet 1, an air conditioner 2 and a battery rack 3 for placing a battery pack 6. The top of the cabinet 1 is provided with an installation cavity 10, and the air conditioner 2 is installed in the installation cavity 10. The front and rear side walls of the installation cavity 10 are respectively provided with a cabinet air inlet 11 and a cabinet air outlet 12, and the cabinet air inlet 11 and the cabinet air outlet 12 are respectively formed by penetrating the front and rear side walls of the installation cavity 10; the front and rear side walls of the air conditioner 2 are respectively provided with an external air inlet 21 and an external air outlet 22, and the bottom plate of the air conditioner 2 is provided with a first air supply port 23 close to the external air inlet 21 and a first air return port 24 close to the external air outlet 22. The bottom wall of the cavity 10 is provided with a second air supply port 13 corresponding to the position of the first air supply port 23 and a second return air port 14 corresponding to the position of the first return air port 24; the battery rack 3 is used to be installed inside the cabinet 1, and the front wall of the battery rack 3 and the front inner wall of the cabinet 1 are enclosed to form an air supply channel 4, and the upper end opening of the air supply channel 4 is aligned with the second air supply port 13; the rear wall of the battery rack 3 and the rear inner wall of the cabinet 1 are enclosed to form a return air channel 5, and the upper end opening of the return air channel 5 is aligned with the second return air port 14; among the multiple battery packs 6 on the battery rack 3, two adjacent battery packs 6 are placed at a distance, and there is also a channel between two adjacent battery packs 6 for air flow to pass through.
[0033] Specifically, the cabinet air inlet 11 and the cabinet air outlet 12 respectively penetrate the front and rear side walls of the installation cavity 10. The first air supply port 23 and the first air return port 24 both penetrate the bottom plate of the air conditioner 2. The first air supply port 23 and the first air return port 24 are both long strip-shaped openings.
[0034] In this embodiment, the first air supply outlet 23 and the first return air outlet 24 of the air conditioner 2 are used as the air supply and return air outlets of the internal circulation of the air conditioner, and the external air inlet 21 and the external air outlet 22 of the air conditioner 2 are used as the air supply and return air outlets of the external circulation of the air conditioner; the air conditioner 2 is installed in the installation cavity 10 set at the top of the cabinet 1, and the first air supply outlet 23 and the first return air outlet 24 of the air conditioner 2 are respectively aligned with the second air supply outlet 13 and the second return air outlet 14, and the external air inlet 21 and the external air outlet 22 of the air conditioner 2 respectively face the cabinet air inlet 11 and the cabinet air outlet 12 of the installation cavity 10 at the top of the cabinet 1. When the battery cabinet is working, the airflow enters the interior of the air conditioner 2 from the cabinet air inlet 11 and the external air inlet 21 of the air conditioner 2, and then the cold air enters the interior of the battery cabinet through the first air supply port 23 and the second air supply port 13. Since the upper end opening of the air supply channel 4 is aligned with the second air supply port 13, and the upper end opening of the return air channel 5 is aligned with the second return air port 14, the cold air entering the interior of the battery cabinet first enters the air supply channel 4, and then enters the return air channel 5 through the battery rack 3, and is discharged from the return air channel 5 through the second return air port 14, the first return air port 24, the external air port 22 and the cabinet air outlet 12, so as to ensure that the hot and cold air at the front and rear ends of the air conditioner 2 do not interfere with each other. Among them, the air conditioner 2 is arranged on the top of the battery cabinet, which does not increase the floor space of the battery cabinet and does not affect the internal layout of the battery cabinet. With the driving force of the return air from the air conditioner 2, when the cold air passes through the battery rack 3, the cold air can cool the battery pack 6 to achieve uniform heat dissipation of multiple battery packs 6. In addition, the air supply channel 4 and the return air channel 5 cooperate with each other, and the structure is relatively simple. No additional fan is required, which is conducive to reducing costs, and the air duct maintenance is simple and convenient.
[0035] See also Figure 2 The battery rack 3 includes a first bracket 31 arranged along a first direction, a second bracket 32 arranged along a second direction, and a third bracket 33 arranged along a third direction. The first bracket 31, the second bracket 32, and the third bracket 33 are connected to form a plurality of accommodating spaces, and the plurality of accommodating spaces are used to accommodate a plurality of battery packs 6.
[0036] Specifically, the first direction refers to Figure 6 The middle X-axis direction, the second direction see Figure 6 The Y axis direction, the third direction see Figure 6 The first bracket 31, the second bracket 32 and the third bracket 33 are connected to form a frame body with a rectangular structure on the outside and a plurality of accommodating spaces on the inside, and the plurality of accommodating spaces can hold a plurality of battery packs 6.
[0037] In this embodiment, there are multiple accommodating spaces inside the battery rack 3, and multiple battery packs 6 can be placed in the multiple accommodating spaces, so that the internal layout of the battery cabinet is more reasonable.
[0038] See also Figure 3A plurality of ventilation holes 34 may be evenly spaced apart on the plurality of third brackets 33. The ventilation holes 34 are arranged along the front-to-back direction, and the front-to-back direction refers to the Y-axis direction in the figure.
[0039] Specifically, the width of the third bracket 33 may be greater than the width of the first bracket 31 and the second bracket 32 , so as to facilitate the provision of the ventilation hole 34 .
[0040] In this embodiment, the provision of the third bracket 33 can, on the one hand, enhance the strength of the battery rack 3, and on the other hand, by providing ventilation holes 34 on the third bracket 33, it is helpful to guide cold air from the air supply channel 4 into the return air channel 5, and because the cold air will pass through the rack on which the multiple battery packs 6 are placed, it is beneficial to the heat dissipation of the battery pack 6.
[0041] See also Figure 4 , multiple through holes are provided on the front and rear side walls of the air conditioner 2 to form an external air inlet 21 and an external air outlet 22; or, through openings are formed on the front and rear side walls of the air conditioner 2, and an air inlet plate and an air outlet are respectively provided at the two through openings, and multiple through holes are provided on the air inlet plate and the air outlet plate to form an external air inlet 21 and an external air outlet 22.
[0042] Specifically, the through hole is an elliptical hole, which is beneficial to increase the intake and exhaust volumes.
[0043] In this embodiment, external air enters the interior of the air conditioner 2 from the through hole at the external air inlet 21. After heat exchange in the battery cabinet, the air is discharged through the through hole at the external air outlet 22. The through holes provided at the air inlet and the air outlet can prevent larger debris from entering the interior of the air conditioner 2 from the external air inlet 21 and the external air outlet 22.
[0044] See also Figure 5 A thermal insulation layer 100 is disposed on the top of the cabinet 1 , the bottom wall of the installation cavity 10 includes the thermal insulation layer 100 , and the second air supply port 13 and the second air return port 14 both penetrate the thermal insulation layer 100 .
[0045] In this embodiment, the provision of the thermal insulation layer 100 is beneficial to separating the cold air in the battery cabinet from the hot air in the environment, thereby facilitating improving the cooling and heat dissipation effect of the cold air.
[0046] See also Figure 6 The cabinet air inlet 11 and the cabinet air outlet 12 are both provided with shutters 15 and dust-proof filter cotton 16. The dust-proof filter cotton 16 is arranged on the side of the shutter 15 facing the installation cavity 10; the fan blades of the shutter 15 are in an inverted V-shaped structure.
[0047] Specifically, the fan blade structure of the shutter 15 is as follows: Figure 6As shown, each fan blade includes a first section, a second section and a third section connected in sequence, the first section is horizontally arranged, and the second section and the third section form an inverted V-shaped structure, that is, specifically, the second section is inclined upward from one end of the first section toward the inside of the installation cavity 10, and the third section is inclined downward from one end of the second section toward the inside of the installation cavity 10.
[0048] In this embodiment, a shutter 15 and a dust filter 16 are provided at the cabinet air inlet 11 to filter the outside air and prevent dust and impurities from entering the air conditioner 2 and the battery cabinet. Furthermore, the inverted V-shaped structure of the shutter 15 blades is conducive to preventing rainwater from entering the air conditioner 2 and the battery cabinet.
[0049] See also Figure 7 The upper end of the installation cavity 10 is an open structure, and a side wall of the installation cavity 10 is provided with an installation opening, and the air conditioner 2 enters the installation cavity 10 through the installation opening; the left and right sides of the air conditioner 2 are respectively provided with a front wind shield 17 and a rear wind shield 18, the front wind shield 17 is used to introduce air into the second air supply port 13, and the rear wind shield 18 is used to guide the air discharged from the second return air port 14.
[0050] Specifically, a front windshield 17 and a rear windshield 18 are respectively disposed on the front and rear sides of the inner bottom of the installation cavity 10. Optionally, there may be two front windshields 17 and two rear windshields 18, and the two front windshields 17 are respectively disposed on both sides of the air conditioner 2, and the two rear windshields 18 are also respectively disposed on both sides of the air conditioner 2. The front windshield 17 is disposed opposite to the cabinet air inlet 11, and the rear windshield 18 is disposed opposite to the cabinet air outlet 12.
[0051] In this embodiment, the open structure of the installation cavity 10 facilitates the installation of the air conditioner 2, and the air conditioner 2 is installed on the top of the battery cabinet to avoid occupying the space inside the battery cabinet, which is conducive to the rational use of the space layout inside the battery cabinet. The front windshield 17 and the rear windshield 18 are provided to separate the cold air from the hot air, thereby improving the cooling effect of the cold air.
[0052] Using the energy storage battery cabinet of the embodiment of the present application, air enters the interior of the air conditioner 2 from the cabinet air inlet 11 and the external air inlet 21 of the air conditioner 2, and then enters the air supply channel 4 of the cabinet 1 through the first air supply port 23 and the second air supply port 13, and enters the return air channel 5 through the battery rack 3, and finally passes through the second return air port 14, the first return air port 24, the external air port 22 and is discharged from the cabinet air outlet 12.
[0053] In this embodiment, this structure helps to ensure that the cold and hot air at the front and rear ends of the air conditioner 2 do not interfere with each other. The air supply channel 4 and the return air channel 5 inside the cabinet 1 cooperate with each other, and there is no need to add a fan. The structure is relatively simple, and the air duct maintenance is simple and convenient. At the same time, it also achieves smooth ventilation in the system air duct and uniform heat dissipation of the battery pack 6.
[0054] The utility model also provides an energy storage device, including a battery pack 6 and the above air-cooled heat dissipation energy storage battery cabinet.
[0055] Specifically, the battery pack 6 is used to be placed on the battery rack 3 of the air-cooled energy storage battery cabinet.
[0056] See also Figure 8 The battery pack 6 includes a shell, the front wall and the rear wall of the shell are both provided with a second through hole 61, the left and right side walls of the shell are both provided with a first through hole 62, and the aperture of the first through hole 62 is smaller than the aperture of the second through hole 61. It can be understood that the battery pack 6 forms a first heat dissipation duct arranged along the front-to-back direction and a second heat dissipation duct arranged along the left-to-right direction.
[0057] Specifically, the second through hole 61 is connected to the first heat dissipation air duct, and the left and right first through holes 62 are connected to the second heat dissipation air duct.
[0058] In this embodiment, the provision of the second through hole 61 and the first through hole 62 on the shell of the battery pack 6 increases the heat dissipation area while ensuring the safety and maintainability of the battery pack 6, and the provision of the first heat dissipation duct and the second heat dissipation duct inside the battery pack inside the battery pack 6 is beneficial to reducing the temperature difference inside the battery pack inside the battery pack 6.
[0059] The energy storage device also includes an electrical cabinet 7 connected to one side of the air-cooled energy storage battery cabinet and electrical components installed in the electrical cabinet 7, and the electrical components are used to control the energy storage device.
[0060] In this embodiment, the arrangement of the electrical cabinet 7 and the electrical components is conducive to controlling the energy storage device.
[0061] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. An air-cooled heat dissipation energy storage battery cabinet, characterized in that: The invention comprises a cabinet (1), an air conditioner (2) and a battery rack (3) for placing a battery pack (6); the top of the cabinet (1) is provided with an installation cavity (10); the air conditioner (2) is installed in the installation cavity (10); the front and rear side walls of the installation cavity (10) are respectively provided with a cabinet air inlet (11) and a cabinet air outlet (12); the front and rear side walls of the air conditioner (2) are respectively provided with an external air inlet (21) and an external air outlet (22); the bottom plate of the air conditioner (2) is provided with a first air supply port (23) close to the external air inlet (21) and a first air return port (24) close to the external air outlet (22); the bottom wall of the installation cavity (10) is provided with a second air supply port (13) corresponding to the position of the first air supply port (23) and a second air return port (14) corresponding to the position of the first air return port (24); The battery rack (3) is used to be installed inside the cabinet (1), and the front wall of the battery rack (3) and the front inner wall of the cabinet (1) are combined to form an air supply channel (4); the rear wall of the battery rack (3) and the rear inner wall of the cabinet (1) are combined to form a return air channel (5).
2. The air-cooled heat dissipation energy storage battery cabinet according to claim 1 is characterized in that: The battery rack (3) comprises a first bracket (31) arranged along a first direction, a second bracket (32) arranged along a second direction, and a third bracket (33) arranged along a third direction, wherein the first bracket (31), the second bracket (32), and the third bracket (33) are connected to form a plurality of accommodating spaces, and the plurality of accommodating spaces are used to accommodate a plurality of the battery packs (6).
3. The air-cooled energy storage battery cabinet according to claim 2 is characterized in that: A plurality of ventilation holes (34) are evenly spaced apart on the plurality of third brackets (33).
4. The air-cooled heat dissipation energy storage battery cabinet according to claim 1 is characterized in that: A plurality of through holes are provided on the front and rear side walls of the air conditioner (2) to form the external air inlet (21) and the external air outlet (22); or, through openings are formed on the front and rear side walls of the air conditioner (2), and an air inlet plate and an air outlet plate are provided at the two through openings, respectively, and a plurality of through holes are provided on the air inlet plate and the air outlet plate to form the external air inlet (21) and the external air outlet (22).
5. The air-cooled energy storage battery cabinet according to claim 1, characterized in that: A side wall of the installation cavity (10) is provided with an installation opening, and the air conditioner (2) enters the installation cavity (10) through the installation opening; a front wind shield (17) and a rear wind shield (18) are respectively provided on the left and right sides of the air conditioner (2), the front wind shield (17) being used to introduce air into the second air supply port (13), and the rear wind shield (18) being used to guide out the air discharged from the second air return port (14).
6. The air-cooled heat dissipation energy storage battery cabinet according to claim 1, characterized in that: Air enters the interior of the air conditioner (2) from the cabinet air inlet (11) and the external air inlet (21) of the air conditioner (2), then enters the air supply channel (4) of the cabinet (1) through the first air supply port (23) and the second air supply port (13), and enters the return air channel (5) through the battery rack (3), and finally passes through the second return air port (14), the first return air port (24), the external air port (22) and is discharged from the cabinet air outlet (12).
7. The air-cooled heat dissipation energy storage battery cabinet according to claim 1, characterized in that: The cabinet air inlet (11) and the cabinet air outlet (12) are both provided with a shutter (15) and a dust-proof filter cotton (16); the dust-proof filter cotton (16) is arranged on the side of the shutter (15) facing the installation cavity (10); and the fan blades of the shutter (15) are an inverted V-shaped structure.
8. The air-cooled energy storage battery cabinet according to claim 1, characterized in that: A thermal insulation layer (100) is provided on the top of the cabinet (1), and a bottom wall of the installation cavity (10) includes the thermal insulation layer (100).
9. An energy storage device, characterized in that: It comprises a battery pack (6) and an air-cooled energy storage battery cabinet as described in any one of claims 1 to 8.
10. The energy storage device according to claim 9, characterized in that: The front wall and the rear wall of the shell of the battery pack (6) are provided with a second through hole (61), and the left and right side walls of the shell are both provided with a first through hole (62), and the aperture of the first through hole (62) is smaller than the aperture of the second through hole (61).