Air-cooling heat dissipation structure and battery cluster
By installing baffles and designing mesh in the air duct, the problem of cold air accumulating at the top of the battery cluster was solved, achieving balanced cooling of all parts of the battery cluster and improving the cooling effect and temperature consistency of the battery cluster.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HNAC TECH
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-05
AI Technical Summary
In existing air-cooling technologies, cold air tends to accumulate at the top of the battery cluster, preventing the bottom battery pack from being effectively cooled and resulting in uneven temperature distribution.
A wind-cooled heat dissipation structure is designed, which divides the air duct into areas that are in contact with and those that are not in contact with the heat dissipation object by setting a baffle. The mesh design of the baffle is used to achieve the diversion and even distribution of cold air, ensuring that the cold air can reach the upper and lower parts of the battery cluster directly or by detour, thereby improving the cooling effect.
It achieves balanced cooling of the temperature of each part of the battery cluster, improves the cooling effect and temperature consistency of the battery cluster in the height direction, and ensures that the heat dissipation object receives more balanced air cooling.
Smart Images
Figure CN224204155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an air-cooled heat dissipation structure and a battery cluster. Background Technology
[0002] Lithium-ion batteries are very sensitive to temperature. Excessive or insufficient temperature will lead to poor battery performance. At the same time, excessive temperature difference between cells can also cause cell failure. Thermal management cooling technology is needed to maintain the uniformity of cell temperature and ensure that the cells operate within a suitable temperature range.
[0003] Currently, lithium battery cooling technology mainly includes air cooling technology. In an air-cooled device, air is drawn in from the top to cool the battery packs inside the casing. However, the cold air tends to accumulate at the top, and the battery packs at the bottom cannot be effectively cooled.
[0004] Therefore, how to achieve more balanced air cooling for heat dissipation objects is a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a wind-cooled heat dissipation structure and battery cluster, so that the heat dissipation object can obtain more balanced wind cooling.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A wind-cooled heat dissipation structure includes a housing, the top of which has an air outlet. A plurality of air ducts are sequentially arranged in the housing along a first direction, and a heat dissipation object mounting area is formed between adjacent air ducts. The air ducts extend along a vertical direction and a second direction. The top of each air duct is connected to the air outlet. One or more partitions are arranged in the air ducts to divide a portion of the space in the air ducts in the first direction, and the portion of the air ducts below the partitions is connected.
[0008] Preferably, the partition is a mesh plate, and its mesh holes extend through the first direction.
[0009] Preferably, in the second direction, on any two regions of equal area on the partition, the total ventilation area of the mesh on the rear side is not greater than the total ventilation area of the mesh on the front side.
[0010] Preferably, the partition includes a plurality of sub-plates in the second direction, and the mesh size of each sub-plate is the same.
[0011] Preferably, the air duct located at the end in the first direction is an end air duct, and a partition is provided in the end air duct to divide the end air duct into a first inner air cooling section close to the corresponding heat dissipation object installation area and a first outer air cooling section away from the heat dissipation object installation area.
[0012] Preferably, the air duct between two adjacent heat dissipation object installation areas is a central air duct, in which two partitions are arranged sequentially along the first direction, dividing the central air duct into a centrally located second external air cooling section and two second internal air cooling sections located on both sides of the second external air cooling section.
[0013] Preferably, the heat dissipation object installation area is provided with a heat dissipation object, the heat dissipation object has a main air inlet on its end face in the first direction that communicates with the adjacent air duct, and the heat dissipation object has an air outlet that communicates with the external space of the outer shell.
[0014] Preferably, the air outlet is located at the front end of the heat dissipation object in the second direction, and a plurality of main air inlets are provided on each end face of the heat dissipation object; and on the end face, in the forward direction of the second direction, the ventilation area of the main air inlets gradually decreases.
[0015] Preferably, on the end face, in any two regions with the same area in the vertical direction, the total ventilation area of the main air inlet in the lower region is not less than the total ventilation area of the main air inlet in the upper region.
[0016] A battery cluster includes the air-cooled heat dissipation structure described above; the heat dissipation object placed in the heat dissipation object mounting area is a battery pack.
[0017] The air-cooled heat dissipation structure provided by this utility model includes a shell, the top of which has an air outlet, and a plurality of air ducts are arranged sequentially along a first direction in the shell. A heat dissipation object installation area is formed between adjacent air ducts. The air ducts extend along the vertical direction and a second direction. The top of each air duct is connected to the air outlet. One or more partitions are arranged in the air ducts to divide part of the space in the air ducts in the first direction, and the part of the air duct below the partitions is connected.
[0018] Based on the aforementioned air-cooled heat dissipation structure, its air duct has a baffle that divides the air duct into an area that is in contact with the installation area of the heat dissipation object and an area that is not in contact with the installation area of the heat dissipation object. When cold air enters through the air outlet at the top of the casing, some of the cold air can directly pass through the area in contact with the installation area of the heat dissipation object to cool the upper part of the heat dissipation object, while some of the cold air enters the area that is not in contact with the installation area of the heat dissipation object and flows downward, bypassing the baffle before cooling the lower part of the heat dissipation object. This achieves the goal of directly delivering the lower-temperature cold air entering through the air outlet to the bottom of the heat dissipation object for cooling, which can improve the cooling effect of the heat dissipation object in the height direction, improve the temperature uniformity of the heat dissipation object from top to bottom, and enable the heat dissipation object to receive more balanced air cooling.
[0019] In a preferred embodiment, the partition is a mesh plate with mesh holes extending along a first direction. In a second direction, on any two areas of equal area on the partition, the total ventilation area of the mesh holes in the rear area is not greater than the total ventilation area of the mesh holes in the front area. Thus, in the second direction, the further forward the partition is, the less wind resistance it has and the greater its ventilation capacity. This is particularly suitable for battery clusters with common air outlets located at the rear end of the casing in the second direction. This allows some of the cooler air from the external cooling unit to flow directly to the front end and then through the mesh holes on the partition for cooling the front-end heat dissipation object. It can also disperse the cool air that enters directly from the rear end of the air duct through the air outlet, preventing the rear heat dissipation object from being over-cooled and improving the uniformity of air cooling of the heat dissipation object in the second direction. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the battery cluster provided by this utility model;
[0022] Figure 2 A schematic diagram of the top air intake section of a specific embodiment of the battery cluster provided by this utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of a specific embodiment of the battery cluster provided by this utility model;
[0024] Figure 4 This is a schematic diagram of the separator in a specific embodiment of the battery cluster provided by this utility model;
[0025] Figure 5A schematic diagram of the front cross-section of the air intake of a specific embodiment of the battery cluster provided by this utility model;
[0026] Figure 6 A schematic diagram of the air intake cross section of a specific embodiment of the battery cluster provided by this utility model;
[0027] Figure 7 This is a schematic diagram of the battery pack in a specific embodiment of the battery cluster provided by this utility model.
[0028] Figure label:
[0029] 1. Outer casing; 11. Air outlet; 12. Sealing plate;
[0030] Air duct 2, inner air cooling section 21, outer air cooling section 22, end air duct 23, first inner air cooling section 231, first outer air cooling section 232, middle air duct 24, second inner air cooling section 241, second outer air cooling section 242;
[0031] Battery pack 3, battery cell 31, main air inlet 32, auxiliary air inlet 33, air outlet 34, exhaust fan 341, heat dissipation device 35;
[0032] Partition 4, mesh 41, dividing plate 42, high porosity zone 421, medium porosity zone 422, low porosity zone 423;
[0033] Heat dissipation installation area 5;
[0034] First direction X, second direction Y. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] The core of this invention is to provide a wind-cooled heat dissipation structure and battery cluster, which enables the heat dissipation object to achieve more balanced wind cooling.
[0037] For a specific embodiment of the air-cooled heat dissipation structure provided by this utility model, please refer to the following: Figures 1 to 1 to Figure 7 The device includes a housing 1, the top of which has an air outlet 11, specifically located at one end of the housing 1 in the second direction Y, such as the tail end. In other embodiments, the air outlet 11 may also be located at the center of the top surface of the housing 1 in the second direction Y.
[0038] Multiple air ducts 2 are sequentially arranged in the outer casing 1 along the first direction X. A heat dissipation installation area 5 is formed between adjacent air ducts 2. The air ducts 2 extend along the vertical direction and the second direction Y. Each air duct 2 is connected to an air outlet 11. Specifically, as shown... Figure 2 As shown, the top end of the air duct 2 in the second direction Y is connected to the air outlet 11 via an air pipe or ventilation hole. The air outlet 11 is typically used to connect to a cold air source, such as a fan or air conditioner. After ventilation in the air duct 2, cold air can be provided to the heat dissipation object 35 in the heat dissipation object installation area 5 adjacent to the air duct 2 for air cooling. In addition, the air outlet can be directly set on the heat dissipation object 35, or set on the outer casing 1, and can exhaust air from the side or bottom.
[0039] It should be noted that the first direction X and the second direction Y are horizontal directions, which can be perpendicular to the vertical direction or the height direction. In addition, the first direction X and the second direction Y are perpendicular to each other with the vertical direction. Of course, the first direction X and the second direction Y can also be other angles. Specifically, the second direction Y can correspond to the front-back direction.
[0040] In addition, in this embodiment, the heat dissipation object 35 is described as the battery pack 3. At this time, the air-cooled heat dissipation structure is applied to the energy storage device or the battery cluster, but it should not be construed as a limitation of this application. In other embodiments, the heat dissipation object 35 can also be selected according to actual needs.
[0041] Furthermore, the number of air ducts 2 can be set as needed, such as... Figure 2 As shown, three air ducts 2 are arranged along the first direction X, forming two heat dissipation object installation areas 5. Each heat dissipation object installation area 5 can place one or more heat dissipation objects 35. For example, in the heat dissipation object installation area 5, multiple heat dissipation objects 35 are arranged sequentially along the height direction.
[0042] For example, when selecting the number of air ducts 2, the cooling needs of the heat dissipation object 35 can be considered. For example, three air ducts 2 can be set to divide the cold air from the air outlet 11 into three parts. The amount of cold air in each air duct 2 is still relatively large, which can ensure the required air intake of each heat dissipation object 35.
[0043] like Figure 5 and Figure 6 As shown, one or more baffles 4 are provided in the air duct 2 to divide part of the space in the first direction X, dividing it into different air-cooling sections. The part of the air duct 2 below the baffles 4 is connected. That is to say, a portion of the air duct 2 in the vertical direction (only the upper part, the upper part + the middle part, or only the middle part) is spatially divided by the baffles 4, while the bottom remains connected. It should be noted that each air-cooling section is connected to the air outlet 11 so that cold air can be directly obtained from the air outlet 11.
[0044] For example, such as Figure 5In terms of orientation, the two air ducts 2 at the left and right ends are equipped with only one partition 4. At this time, part of the space of the air duct 2 is divided into two air-cooling sections by the partition 4 in the first direction X. For the middle air duct 2, two partitions 4 are installed, and part of the space of the air duct 2 is divided into three air-cooling sections in the first direction X.
[0045] Based on the air-cooled heat dissipation structure provided in this embodiment, the air duct 2 has a partition 4, which can divide the air duct 2 into an area that fits the heat dissipation object mounting area 5 (which is the inner air-cooling part 21 in the air-cooling part) and an area that does not fit the heat dissipation object mounting area 5 (which is the outer air-cooling part 22 in the air-cooling part). When cold air enters the air outlet 11 at the top of the outer shell 1, after entering the air duct 2, some of the cold air can directly cool the upper part of the heat dissipation object 35 through the area that fits the heat dissipation object mounting area 5, while some of the cold air enters the area that does not fit the heat dissipation object mounting area 5 and goes down, bypassing the partition 4 and then air-cooling the lower part of the heat dissipation object 35. This realizes that the cold air with a lower temperature entering through the air outlet 11 is directly transported to the bottom of the heat dissipation object 35 for air cooling, which can improve the cooling effect of the heat dissipation object 35 in the height direction, improve the temperature consistency of the upper and lower parts of the heat dissipation object 35, and make the heat dissipation object 35 more evenly air-cooled.
[0046] Furthermore, such as Figure 3 and Figure 4 As shown, the partition 4 is a mesh plate with mesh holes 41 extending along the first direction X. That is, the partition 4 provides some resistance in the first direction X, but cannot completely block the passage of air, thus reducing the impact of airflow diversion on the cooling effect of the upper part of the battery pack 3, especially on the cooling effect of the portion of the battery pack 3 far from the air outlet 11 in the second direction Y. Of course, in other embodiments, the partition 4 can also be a plate without ventilation holes.
[0047] Furthermore, such as Figure 3 and Figure 4 As shown, in the second direction Y, in any two areas of equal area on the partition 4, the total ventilation area of the mesh 41 in the rear area is not greater than the total ventilation area of the mesh 41 in the front area. Thus, in the second direction Y, the further forward the partition 4 is, the smaller its wind resistance. This allows some of the cooler air from the external cooling section 22 to flow directly to the front end and enter the internal cooling section 21 through the mesh 41 of the partition 4 for air cooling of the battery pack 3. This is especially suitable for battery clusters with common air outlets 11 located at the rear end of the outer casing 1 in the second direction Y, which can improve the balance of air cooling of the battery pack 3 in the second direction Y.
[0048] It should be noted that the total ventilation area of mesh 41 can be set by setting the opening ratio. In areas with the same area of partition 4, the larger the opening ratio, the larger the total ventilation area of mesh 41. The opening ratio is calculated as: total ventilation area of mesh 41 / area of the partition 4 area where mesh 41 is located.
[0049] In some embodiments, for ease of processing, such as Figure 3 and Figure 4 As shown, the partition 4 includes multiple sub-plates 42 in the second direction Y. The mesh 41 on the same sub-plate 42 is the same size. At this time, the further forward you go, the larger the diameter of the mesh 41 and the fewer the number of meshes.
[0050] Specifically, there are 3 partitions 42, located in the second direction Y, from back to front ( Figure 4 (From right to left in the orientation), the area of a single mesh 41 gradually increases, and from the perspective of porosity, it is successively a low porosity zone 423, a medium porosity zone 422, and a high porosity zone 421, thus gradually enhancing the ventilation capacity. At this time, by setting mesh plates with different porosities in the air duct 2, the temperature consistency of the front and rear cells 31 of the same battery pack 3 can be ensured, solving the problem of uneven air intake on the side of the battery pack 3. Of course, in other embodiments, four, five, or other numbers of partition plates 42 can also be set.
[0051] Specifically, the partition 4 can be a one-piece plate, divided into three regions along the second direction Y, with mesh holes 41 punched in the low porosity region 423, medium porosity region 422, and high porosity region 421 respectively, forming three sub-plates 42, constituting a hierarchical perforated mesh plate. In other embodiments, the partition 4 can also be a plate piece spliced together from different sub-plates in the second direction Y.
[0052] Furthermore, within the outer casing 1, the requirements for the placement of the baffle 4 differ for air ducts 2 at different locations. For example... Figure 5 and Figure 6 As shown, the air duct 2 located at the end in the first direction X is the end air duct 23. In this embodiment, there are two end air ducts 23. A partition 4 is provided in the end air duct 23, dividing the end air duct 23 into an inner air cooling section and an outer air cooling section. These are the first inner air cooling section 231, which is closer to the corresponding heat dissipation object mounting area 5, and the first outer air cooling section 232, which is farther away from the battery pack 3 mounting area. While satisfying the air cooling balance in height or the second direction Y, the setting of the partition 4 is reduced, which can reduce the assembly difficulty.
[0053] In addition, the air duct 2 between two adjacent heat dissipation object installation areas 5 is a central air duct 24. Two partitions 4 are arranged in the central air duct 24 along the first direction X, dividing the central air duct 24 into two inner air cooling sections and one outer air cooling section. The inner air cooling section 242 is arranged in the center and the two inner air cooling sections 241 are located on both sides of the outer air cooling section 242. While satisfying the air cooling balance in height or the second direction Y, the number of partitions 4 is reduced, which can reduce the assembly difficulty.
[0054] In addition, such as Figure 1 As shown, in the outer casing 1, in order to facilitate the installation, removal and maintenance of the partition 4 in the end air duct 23, the plate located at the first direction X end of the outer casing 1 can be specifically set as a detachable sealing plate 12.
[0055] Furthermore, such as Figure 3 As shown, in the battery pack 3, its two ends in the first direction X are its two end faces. The main air inlet 32 is located on the end face of the battery pack 3 and connects to the adjacent air duct 2, enabling lateral air intake for cooling. The battery pack 3 has multiple battery cells 31, specifically multiple battery cells 31 arranged sequentially along the second direction Y. The cold air entering the battery pack 3 can cool the battery cells 31. At this time, the battery pack 3 has main air inlets 32 at both ends in the first direction X, and is respectively equipped with corresponding air ducts 2 to directly supply cold air, enabling free air intake from both sides of the battery pack 3.
[0056] Furthermore, such as Figure 3 and Figure 7 As shown, the air outlet 34 is located at the front end of the battery pack 3 in the second direction Y. Specifically, the battery pack 3 has an air outlet 34 that communicates with the external space of the outer casing 1. The hot air after heat exchange in the battery pack 3 is directly discharged from the outer casing 1 through the air outlet 34 and does not re-enter the outer casing 1, thus avoiding mixing with the cold air in the air duct 2 and affecting the cooling capacity. For example, the outer casing 1 has a drawer-type mounting slot. The battery pack 3 can be used as a drawer structure and inserted backward into the corresponding mounting slot to realize the assembly of the battery pack 3, while ensuring that the front end of the battery pack 3 and the air outlet 34 thereon are exposed.
[0057] Furthermore, such as Figure 7 As shown, multiple main air inlets 32 are provided on each end face of the battery pack 3, and the ventilation area of the main air inlets 32 gradually decreases in the forward direction in the second direction Y on the end face of the battery pack 3. For example, each main air inlet 32 is the same size, and the ventilation area is adjusted by setting the number of main air inlets 32.
[0058] At this time, it can be ensured that cold air will enter through the main air inlet 32 located at the rear of the battery pack 3 for cooling, instead of only entering the main air inlet 32 near the air outlet 34, which can improve the balance of front and rear air cooling in the battery pack 3.
[0059] In some embodiments, such as Figure 7 As shown, on the end face of the battery pack 3, in any two areas of equal area in the vertical direction, the total ventilation area of the main air inlet 32 in the lower area is not less than the total ventilation area of the main air inlet 32 in the upper area, which can meet the heat dissipation requirements of the bottom of the battery cell 31. At this time, the upper edge of the air inlet area formed by the main air inlets 32 on the end face of the battery pack 3 has a stepped structure.
[0060] In some embodiments, such as Figure 7 As shown, the air outlet 34 of the battery pack 3 is also equipped with an exhaust fan 341. Cold air is introduced laterally through the main air inlet 32 on the end face of the battery pack 3 to cool the battery cells 31 inside the battery pack 3, and then discharged through the front exhaust fan 341, which can improve the ventilation efficiency.
[0061] In some embodiments, such as Figure 7 As shown, when the battery pack 3 has a separate cooling requirement, an auxiliary air inlet 33 can be opened on the end face of the battery pack 3.
[0062] The working principle of the air-cooled heat dissipation structure in this embodiment includes: the air conditioner is connected to the air outlet 11, and the air velocity of the air conditioner is relatively high. At this time, in the air duct, by adding a layered perforated mesh partition 4, since the gas between the inner air-cooled section 21 and the outer air-cooled section 22 can be exchanged horizontally, the inner air-cooled section 21 is the main air-cooling source at the end of the battery cell 31, and part of the airflow from the outer air-cooled section 22 can be exchanged to the inner air-cooled section 21 through the mesh 41, and part of the airflow is output downward to ensure the air volume of the bottom battery pack 3.
[0063] When applied to the air cooling of the battery pack 3, in the front-to-back direction, the low porosity region 423 is located at the rear side of the battery pack 3, which can reduce the airflow exchange between the inner air cooling section 21 and the outer air cooling section 22, allowing more airflow to flow downwards; the medium porosity region 422 is located in the middle of the battery pack 3, which balances the downward flow of airflow and the exchange between the inner air cooling section 21 and the outer air cooling section 22; the high porosity region 421 is located at the front side of the battery pack 3, which can fully ensure the airflow exchange between the inner air cooling section 21 and the outer air cooling section 22, and fully cool the front cell 31 of the battery pack 3, thereby achieving the overall temperature uniformity and consistency of the battery cluster.
[0064] In addition to the aforementioned air-cooled heat dissipation structure, this utility model also provides a battery cluster, which includes an air-cooled heat dissipation structure. Specifically, the air-cooled heat dissipation structure can be any of the air-cooled heat dissipation structures provided in the above embodiments, and the beneficial effects can be referred to the respective embodiments above. In this case, the heat dissipation target is the battery pack, specifically a lithium-ion battery. The structures of other parts of this battery cluster are described in the prior art and will not be repeated here.
[0065] It should be noted that when an element is referred to as "fixing" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this utility model, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.
[0066] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0068] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0069] The air-cooled heat dissipation structure and battery cluster provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A wind-cooled heat dissipation structure, characterized in that, Includes an outer shell (1), the top of which has an air outlet (11), and multiple air ducts (2) are arranged sequentially in the outer shell (1) along a first direction (X). A heat dissipation object installation area (5) is formed between adjacent air ducts (2). The air ducts (2) extend along the vertical direction and the second direction (Y). The top of each air duct (2) is connected to the air outlet (11). One or more partitions (4) are provided in the air ducts (2) to divide part of the space in the air ducts (2) in the first direction (X), and the part of the air ducts (2) below the partitions (4) is connected.
2. The air-cooled heat dissipation structure according to claim 1, characterized in that, The partition (4) is a mesh plate, and its mesh holes (41) are through the first direction (X).
3. The air-cooled heat dissipation structure according to claim 2, characterized in that, In the second direction (Y), on any two regions of the same area on the partition (4), the total ventilation area of the mesh (41) on the rear side is not greater than the total ventilation area of the mesh (41) on the front side.
4. The air-cooled heat dissipation structure according to claim 3, characterized in that, The partition (4) includes a plurality of sub-plates (42) in the second direction (Y), and the mesh (41) on the same sub-plate (42) has the same size.
5. The air-cooled heat dissipation structure according to claim 1, characterized in that, The air duct (2) located at the end in the first direction (X) is the end air duct (23), and a partition (4) is provided in the end air duct (23), dividing the end air duct (23) into a first inner air cooling section (231) close to the corresponding heat dissipation object installation area (5) and a first outer air cooling section (232) far away from the heat dissipation object installation area (5).
6. The air-cooled heat dissipation structure according to claim 1, characterized in that, The air duct (2) between two adjacent heat dissipation object installation areas (5) is a central air duct (24). Two partitions (4) are arranged in the central air duct (24) along the first direction (X), and the central air duct (24) is divided into a second external air cooling section (242) arranged in the center and two second internal air cooling sections (241) located on both sides of the second external air cooling section (242).
7. The air-cooled heat dissipation structure according to any one of claims 1 to 6, characterized in that, The heat dissipation object installation area (5) is provided with a heat dissipation object (35). The heat dissipation object (35) has a main air inlet (32) on its end face in the first direction (X) that communicates with the adjacent air duct (2). The heat dissipation object (35) has an air outlet (34) that communicates with the external space of the outer shell (1).
8. The air-cooled heat dissipation structure according to claim 7, characterized in that, The air outlet (34) is located at the front end of the heat dissipation object (35) in the second direction (Y). Multiple main air inlets (32) are provided on each end face of the heat dissipation object (35). On the end face, in the forward direction in the second direction (Y), the ventilation area of the main air inlet (32) gradually decreases.
9. The air-cooled heat dissipation structure according to claim 8, characterized in that, On the end face, in any two regions with the same area in the vertical direction, the total ventilation area of the main air inlet (32) in the lower region is not less than the total ventilation area of the main air inlet (32) in the upper region.
10. A battery cluster, characterized in that, Includes the air-cooled heat dissipation structure according to any one of claims 1 to 9; the heat dissipation object (35) placed in the heat dissipation object installation area (5) is a battery pack (3).