Battery cooling air duct structure and energy storage device with same

Abstract

The utility model discloses a battery cooling air duct structure which comprises a shell, the shell is provided with an air inlet, an air duct and an air outlet, a partition plate is arranged in the air duct to divide the air duct into a first air duct and a second air duct which are mutually independent, and the extension direction of the partition plate is consistent with the direction of cooling air entering from the air inlet. And the surface of one side, located in the first air duct and / or the second air duct, of the partition plate is a curved surface. The utility model further discloses an energy storage device with the battery cooling air duct structure.

Description

Technical Field

[0001] This utility model belongs to the field of battery cooling, and in particular relates to a battery cooling air duct structure and an energy storage device having the same. Background Technology

[0002] During charging and discharging, batteries inevitably generate heat due to their internal resistance. In related technologies, air cooling is typically used to prevent overheating from affecting battery performance and to ensure the battery operates within a suitable temperature range. However, the cooling gas encounters resistance in the air duct structure, resulting in energy loss. This not only leads to poor cooling but also hinders energy conservation and emission reduction. Utility Model Content

[0003] In view of this, the first objective of this utility model is to provide a battery cooling duct structure that can reduce the resistance encountered by cooling gas when it flows in the duct.

[0004] The second objective of this invention is to provide an energy storage device having the battery cooling duct structure.

[0005] To achieve the above-mentioned technical objectives, the first aspect of this utility model provides a battery cooling duct structure, including a housing, wherein the housing is provided with an air inlet, a duct, and an air outlet, characterized in that a partition is provided in the duct to divide the duct into a first duct and a second duct that are independent of each other, the extension direction of the partition is consistent with the direction of the cooling air entering from the air inlet, and the surface of the partition located on one side of the first duct and / or the second duct is curved.

[0006] In one embodiment, the housing is box-shaped and includes an upper top plate, a lower bottom plate, a left side plate, a right side plate, and a rear side plate. The partition is disposed between the upper top plate and the lower bottom plate and connected to the rear side plate.

[0007] In one embodiment, the partition includes a main partition adjacent to the air inlet, and a first partition and a second partition connected to the main partition and the rear side panel.

[0008] In one embodiment, the housing has a notch located between the first partition plate and the second partition plate, and facing the rear side plate.

[0009] In one embodiment, the upper top plate includes a first upper top plate and a second upper top plate connected to the first upper top plate and the rear side plate, wherein the angle between the second upper top plate and the first upper top plate is an obtuse angle.

[0010] In one embodiment, the right side plate includes a first right side plate, a second right side plate, and a connecting plate connected to the first right side plate and the second right side plate, wherein the connection between the connecting plate and the first right side plate is chamfered.

[0011] In one embodiment, the air inlet of the second air duct is larger than the air inlet of the first air duct, and the cross-section of the second air duct and the corresponding cross-section of the first air duct first increase and then decrease along the extension direction of the partition.

[0012] In one embodiment, the end of the partition near the air inlet is spaced apart from the edge of the air inlet.

[0013] In one embodiment, the air outlet includes a first air outlet and a second air outlet located at the bottom of the housing. The first air outlet is connected to the air inlet through a first air duct, and the second air outlet is connected to the air inlet through a second air duct.

[0014] A second aspect of this utility model provides an energy storage device, including an air conditioner, a battery, and a battery cooling duct structure as described in the above technical solution, wherein the battery cooling duct structure is connected between the air conditioner and the battery.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] This invention, by setting a curved baffle in the air duct, with the extension direction of the baffle aligned with the direction of the cooling air entering from the air inlet, not only divides the air duct into two independent air ducts for cooling different areas of the battery, but also helps to reduce the resistance encountered by the cooling gas when flowing in the first and second air ducts, thereby improving cooling efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a battery cooling duct structure provided for an embodiment of this utility model from a first-view perspective;

[0019] Figure 2 for Figure 1 The diagram shown is a schematic representation of the battery cooling duct structure from a second perspective.

[0020] Figure 3 for Figure 1 The diagram shows the battery cooling duct structure from a third-person perspective.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Shell; 2. Partition;

[0023] 11. Air inlet; 12. Air duct; 13. Air outlet; 14. Notch; 15. Top panel; 16. Bottom panel; 17. Left side panel; 18. Right side panel; 19. Rear side panel;

[0024] 121. First air duct; 122. Second air duct;

[0025] 131. First air outlet; 132. Second air outlet;

[0026] 151. First upper top plate; 152. Second upper top plate;

[0027] 181. First right side panel; 182. Second right side panel; 183. Connecting plate;

[0028] 21. Main partition; 22. First partition; 23. Second partition. Detailed Implementation

[0029] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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.

[0032] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0033] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0034] According to the inventor's understanding, batteries inevitably generate heat during charging and discharging due to internal resistance. In related technologies, air cooling is typically used to prevent overheating from affecting battery performance and ensure the battery operates within a suitable temperature range. However, the cooling gas encounters resistance in the air duct structure, resulting in energy loss. This not only leads to poor cooling but also hinders energy conservation and emission reduction.

[0035] To reduce the resistance encountered by cooling gas as it flows through the duct and thus lower energy consumption, the existing duct structure needs to be improved.

[0036] Please see Figure 1 , Figure 2 and Figure 3 The first aspect of this utility model provides a battery cooling air duct structure, which includes a housing 1. The housing 1 is provided with an air inlet 11, an air duct 12 and an air outlet 13. The air duct 12 connects the air inlet 11 and the air outlet 13 and is used to guide the cooling air entering from the air inlet 11 to the air outlet 13 to gather and flow out. Overall, the shell 1 is an irregularly shaped box, including an upper top plate 15, a lower bottom plate 16, a left side plate 17, a right side plate 18, and a rear side plate 19. The upper top plate 15 and the lower bottom plate 16 are arranged opposite each other in the vertical direction. The left side plate 17 and the right side plate 18 are connected between the upper top plate 15 and the lower bottom plate 16. The rear side plate 19 is located at one end of the upper top plate 15, the lower bottom plate 16, the left side plate 17, the right side plate 18, and the rear side plate 19. An air duct 12 is formed inside the enclosed upper top plate 15, the lower bottom plate 16, the left side plate 17, the right side plate 18, and the rear side plate 19. The air inlet 11 is located at one end of the upper top plate 15, the lower bottom plate 16, the left side plate 17, and the right side plate 18 away from the rear side plate 19. The air outlet 13 is located on the lower bottom plate 16.

[0037] In this embodiment, in order to cool different areas of the battery to be cooled, the battery cooling air duct structure also includes a partition 2 disposed in the air duct 12. Specifically, the partition 2 is located between the upper top plate 15 and the lower bottom plate 16 and is connected to the rear side plate 19, dividing the air duct 12 into a first air duct 121 and a second air duct 122 that are independent of each other. The first air duct 121 is used to cool the side of the battery, and the second air duct 122 is used to cool the top of the battery. In the horizontal direction, the first air duct 121 and the second air duct 122 are arranged side by side. Correspondingly, the air outlet 13 includes a first air outlet 131 and a second air outlet 132 disposed on the lower bottom plate 19. Both the first air outlet 131 and the second air outlet 132 are elongated. The first air outlet 131 is connected to the air inlet 11 through the first air duct 121, and the second air outlet 132 is connected to the air inlet 11 through the second air duct 122. Preferably, the air inlet of the second air duct 122 is larger than the air inlet of the first air duct 121, and the second air outlet 132 is larger than the first air outlet 131. The cross-section of the second air duct 122 and the corresponding cross-section on the first air duct 121 first increase and then decrease along the extension direction of the partition 2. On the one hand, this facilitates the adaptation of the air intake volume required by different areas of the battery by setting the first air duct 121 and the second air duct 122 with different capacities. On the other hand, it is used to ensure that the flow velocity distribution of the cooling gas in the first air duct 121 and the second air duct 122 is within the expected requirements, so as to improve the cooling efficiency.

[0038] It should be noted that, in order to reduce the resistance encountered by the cooling gas when flowing in the first air duct 121 and the second air duct 122, the extension direction of the baffle 2 is consistent with the airflow direction of the cooling air entering from the air inlet 11, and one side surface of the baffle 2 located in the first air duct 121 and / or the second air duct 122 is curved. Preferably, the cross-section of the baffle 2 is S-shaped, C-shaped, or corrugated. Thus, when the cooling air enters from the air inlet 11 under the action of the refrigeration mechanism and flows along the extension direction of the first air duct 121 and the second air duct 122, finite element analysis and simulation show that the air pressure difference between the cooling air at the air inlet 11 and the air pressure difference at the air outlet 13 is small. This indicates that the resistance encountered by the cooling air during the flow is small, which helps to reduce energy loss.

[0039] To ensure that the flow velocity distribution of the cooling gas in the first air duct 121 and the second air duct 122 is within the expected requirements, and that the flow resistance of the cooling gas due to the partition 2 is small, in this embodiment, the partition 2 includes a main partition 21, a first partition 22, and a second partition 23. The end of the partition 2 near the air inlet 11 is spaced at a certain distance from the edge of the air inlet 11 to collect the cooling air entering from the air inlet 11. The first partition 22 and the second partition 23 are connected to the main partition 21 and the rear side plate 19, with the first partition 22 forming part of the first air duct 121 and the second partition 23 forming part of the second air duct 122. Specifically, the first partition 22 and the second partition 23 are connected through a common connection on the main partition 21, and the bending trend of the first partition 22 is opposite to that of the second partition 23 relative to the length direction of the main partition 21, making the main partition 21, the first partition 22, and the second partition 23 approximately Y-shaped. It should be noted that, viewed horizontally, the surface of the main partition 21 and the second partition 23 located in the second air duct 122 protrudes to the right to a certain position, and the surface of the first partition 22 located in the first air duct 121 protrudes to the left to a certain position. Thus, when the cooling air enters from the air inlet 11, it will maintain its initial velocity. Since the longitudinal cross-sectional area of ​​the first air duct 121 and the second air duct 122 first increases and then decreases, and the two sides of the main partition 21 are curved, as the air intake increases, it facilitates the cooling air being blown out at a higher wind speed from the first air outlet 131 and the second air outlet 132.

[0040] In this embodiment, in order to reduce the weight of the housing 1, the housing 1 is provided with a V-shaped notch 14. Specifically, the notch 14 is located between the first partition plate 22 and the second partition plate 23 and faces the rear side plate 19.

[0041] Furthermore, to make the longitudinal cross-sectional area of ​​the first air duct 121 and the second air duct 122 first increase and then decrease, in this embodiment, the upper top plate 15 is a curved plate shape with a central protrusion towards the top. It includes a first upper top plate 151 and a second upper top plate 152 connected to the first upper top plate 151 and the rear side plate 19. The first upper top plate 151 is closer to the air inlet 11, and the angle between the second upper top plate 152 and the first upper top plate 151 is an obtuse angle, so that the ends of the first air duct 121 and the second air duct 122 near the rear side plate 19 gradually taper. Preferably, the left side plate 17 is also a curved plate shape.

[0042] Furthermore, to ensure that the air intake in the second air duct 122 is within a preset range and to deflect the flow of cooling gas towards the right side of the second air duct 122 to match the second air outlet 132, the right side plate 18 of the housing 1 includes a first right side plate 181, a second right side plate 182, and a connecting plate 183 connected to the first right side plate 181 and the second right side plate 182, wherein the first right side plate 181 is closer to the air inlet 11 and the main partition 21. Preferably, the connection between the connecting plate 183 and the first right side plate 181 is chamfered to reduce the resistance of the cooling air at the corner.

[0043] A second aspect of this utility model provides an energy storage device, which includes an air conditioner, a battery, and a battery cooling duct structure as described in the above embodiment. The battery cooling duct structure is connected between the air conditioner and the battery. Specifically, the air inlet 11 of the battery cooling duct structure is connected to the air outlet of the air conditioner. The first air outlet 131 and the second air outlet 132 of the battery cooling duct structure face the side and the top of the battery, respectively, so that the energy storage device has the characteristic of high energy efficiency.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] This invention, by setting a curved baffle 2 in the air duct 12, with the extension direction of the baffle 2 consistent with the airflow direction of the cooling air entering from the air inlet 11, not only divides the air duct 12 into two independent air ducts 121 and 122 for cooling different areas of the battery to be cooled, but also helps to reduce the resistance encountered by the cooling gas when flowing in the first air duct 121 and the second air duct 122, thereby improving the cooling efficiency.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A battery cooling air duct structure comprising a housing (1) provided with an air inlet (11), an air duct (12) and an air outlet (13), characterized in that, The air duct (12) is provided with a partition (2) to divide the air duct (12) into a first air duct (121) and a second air duct (122) that are independent of each other. The extension direction of the partition (2) is consistent with the air direction of the cooling air entering from the air inlet (11), and the surface of the partition (2) on one side located in the first air duct (121) and / or the second air duct (122) is curved.

2. The battery cooling duct structure according to claim 1, wherein The housing (1) is box-shaped and includes an upper top plate (15), a lower bottom plate (16), a left side plate (17), a right side plate (18), and a rear side plate (19). The partition (2) is located between the upper top plate (15) and the lower bottom plate (16) and is connected to the rear side plate (19).

3. The battery cooling duct structure according to claim 2, wherein The partition (2) includes a main partition (21) adjacent to the air inlet (11), and a first partition (22) and a second partition (23) connected to the main partition (21) and the rear side plate (19).

4. The battery cooling duct structure according to claim 3, wherein The housing (1) has a notch (14) located between the first partition plate (22) and the second partition plate (23) and facing the rear side plate (19).

5. The battery cooling duct structure according to claim 2, wherein The upper top plate (15) includes a first upper top plate (151) and a second upper top plate (152) connected to the first upper top plate (151) and the rear side plate (19), wherein the angle between the second upper top plate (152) and the first upper top plate (151) is an obtuse angle.

6. The battery cooling duct structure of claim 2, wherein, The right side plate (18) includes a first right side plate (181), a second right side plate (182), and a connecting plate (183) connected to the first right side plate (181) and the second right side plate (182). The connection between the connecting plate (183) and the first right side plate (181) is chamfered.

7. The battery cooling duct structure according to claim 1, wherein The air inlet of the second air duct (122) is larger than the air inlet of the first air duct (121), and the cross-section of the second air duct (122) and the corresponding cross-section of the first air duct (121) first increase and then decrease along the extension direction of the partition (2).

8. The battery cooling duct structure of claim 1, wherein, The end of the partition (2) near the air inlet (11) is spaced at a certain distance from the edge of the air inlet (11).

9. The battery cooling duct structure as described in claim 1, characterized in that, The air outlet (13) includes a first air outlet (131) and a second air outlet (132) located at the bottom of the housing (1). The first air outlet (131) is connected to the air inlet (11) through the first air duct (121), and the second air outlet (132) is connected to the air inlet (11) through the second air duct (122).

10. An energy storage device, characterized by, The device includes an air conditioner, a battery, and a battery cooling duct structure as described in any one of claims 1 to 9, the battery cooling duct structure being connected between the air conditioner and the battery.

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