Air-cooled energy storage device

Abstract

The application discloses a forced air cooling energy storage device, which comprises a plurality of battery groups, wherein each battery group comprises a shell, a battery cell, a fan and a regulating plate, the battery cell is arranged in the shell, the fan is connected with the shell and is used for forming air flow between the inside and the outside of the shell, a first through hole connecting the inside and the outside of the shell is formed on the side wall of the shell, a second through hole penetrating through both sides of the regulating plate is formed on the regulating plate, the first through hole and the second through hole jointly form an air flow through hole on the shell, and the regulating plate is slidably arranged on the side wall of the shell so as to change the relative position of the first through hole and the second through hole and then change the size of the air flow through hole. The forced air cooling energy storage device can make the cooling effect between the plurality of battery groups more uniform, and improve the overall performance and the consistency of the service life of the battery groups.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an air-cooled energy storage device. Background Technology

[0002] With the development of new energy technologies, energy storage devices that use batteries for energy storage are being increasingly applied to people's lives. Energy storage devices typically consist of multiple stacked battery packs housed within the device's enclosure.

[0003] During the charging and discharging process, battery packs generate heat. Therefore, in order to improve battery efficiency and extend battery life, it is necessary to dissipate heat from the battery packs in energy storage devices.

[0004] In existing technologies, air cooling is generally used to dissipate heat from energy storage devices. Air inlets and outlets are formed on the enclosure, and air conditioning mechanisms are installed at the inlets and / or outlets to allow airflow throughout the enclosure. When the air conditioning mechanism delivers cool air into the enclosure, the cool air circulates within each battery pack via its own internal fan.

[0005] However, since the airflow inside the energy storage device has a certain direction, the temperature of the airflow gradually increases as it flows from the air inlet to the air outlet. This results in the battery packs near the air inlet having better heat dissipation than those near the air outlet. Consequently, the temperature difference between multiple stacked battery packs is relatively large, which affects the overall performance and lifespan consistency of each battery pack in the entire energy storage device. Utility Model Content

[0006] This invention provides an air-cooled energy storage device that enables more uniform cooling among multiple battery packs, thereby improving the overall performance and lifespan consistency of the battery packs.

[0007] This utility model provides an air-cooled energy storage device, including multiple battery packs stacked together. Each battery pack includes a housing, a battery cell, a fan, and an adjustment plate. The battery cell is disposed inside the housing. The fan is connected to the housing and is used to generate airflow between the inside and outside of the housing. A first through hole connecting the inside and outside of the housing is formed on the side wall of the housing. A second through hole penetrating both sides of the adjustment plate is formed on the adjustment plate. The first through hole and the second through hole together form an airflow passage on the housing. The adjustment plate is slidably disposed on the side wall of the housing to change the relative position of the first through hole and the second through hole, thereby changing the size of the airflow passage.

[0008] Furthermore, from the air inlet direction to the air outlet direction of the air-cooled energy storage device, the area of ​​the airflow through-hole on the battery pack gradually increases.

[0009] Furthermore, a first side plate extending in a first direction and a second side plate extending in a second direction are formed on the housing, and an angle is formed between the extending directions of the first side plate and the second side plate. The fan is disposed on the first side plate, and the first through hole is disposed on the second side plate. Each second side plate is provided with a plurality of first through holes.

[0010] Furthermore, there are two second side plates, which are arranged to interact with each other, and each second side plate is provided with multiple first through holes.

[0011] Furthermore, the plurality of first through holes are sequentially arranged along the height direction of the second side plate to form a first through hole column, and the plurality of first through hole columns are arranged along the length direction of the second side plate, so that the first through holes are arranged in an array on the second side plate.

[0012] Furthermore, on the adjustment plate, there are multiple second through holes, which are arranged along the length direction of the second side plate, and each second through hole corresponds to the position of a first through hole row.

[0013] Furthermore, a slide rail is provided on the outer side of the second side plate, and the adjusting plate is slidably disposed on the slide rail.

[0014] Furthermore, a handle is provided on one end of the adjustment plate.

[0015] Furthermore, within the same battery pack, there are multiple battery cells, and a harmonica tube is provided between two battery cells, with the opening of the harmonica tube corresponding to the position of the airflow through hole.

[0016] Furthermore, the battery pack includes an air duct and an air duct baffle. The air duct is disposed on the end of the harmonica tube away from the first through hole. The fan is disposed on the side wall of the housing. The air duct baffle covers the housing from the inside and is provided with an opening. The end of the air duct away from the harmonica tube corresponds to the position of the opening on the air duct baffle.

[0017] In summary, by setting a second through hole on the adjustment plate, and allowing the adjustment plate to slide on the housing, the opening area of ​​the airflow through hole entering the battery pack can be adjusted, thereby regulating the airflow rate through the airflow through the hole. In air-cooled energy storage equipment, multiple battery packs are housed in a single enclosure. Therefore, the airflow generated by the air conditioning mechanism within the entire enclosure has a specific direction. During use, the position of the adjustment plate can be adjusted according to the airflow direction and the temperature of each battery pack, thereby adjusting the opening area of ​​the airflow through hole in each battery pack. This allows different battery packs to have different opening areas for their airflow through holes, thus adjusting the airflow rate within each battery pack to balance the temperature of each battery pack. Therefore, this air-cooled energy storage equipment can achieve a more uniform cooling effect among multiple battery packs, improving the overall performance and lifespan consistency of the battery packs.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 The figure shown is an axonometric structural diagram of the air-cooled energy storage device provided in an embodiment of this utility model.

[0020] Figure 2 As shown Figure 1 A first-view axial side structural diagram of a single battery pack.

[0021] Figure 3 As shown Figure 1 A second-view axial side structural diagram of a single battery pack.

[0022] Figure 4 As shown Figure 1 A schematic diagram of the exploded structure of a single battery pack. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the present utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0024] This invention provides an air-cooled energy storage device that enables more uniform cooling among multiple battery packs, thereby improving the overall performance and lifespan consistency of the battery packs.

[0025] like Figures 1 to 4As shown, the air-cooled energy storage device provided in this embodiment of the present invention includes multiple battery packs 10, which are stacked together. Each battery pack 10 includes a housing 11, a battery cell 12, a fan 13, and an adjustment plate 14. Multiple battery cells 12 are disposed within the housing 11. The fan 13 is connected to the housing 11 and is used to generate airflow between the inside and outside of the housing 11. A first through hole 151 connecting the inside and outside of the housing 11 is formed on the side wall of the housing 11. A second through hole 152 penetrating both sides of the adjustment plate 14 is formed on the adjustment plate 14. The first through hole 151 and the second through hole 152 together form an airflow passage on the housing 11. The adjustment plate 14 is slidably disposed on the side wall of the housing 11 to change the relative position of the first through hole 151 and the second through hole 152, thereby changing the size of the airflow passage.

[0026] In this embodiment, by adjusting the second through hole 152 on the adjusting plate 14, and allowing the adjusting plate 14 to slide on the housing 11, the opening area of ​​the airflow through hole entering the battery pack 10 can be adjusted, thereby adjusting the air intake volume of the airflow through hole. In the air-cooled energy storage device, multiple battery packs 10 are housed in a single enclosure (not shown). Therefore, the airflow generated by the air conditioning mechanism within the entire enclosure has a specific direction. During use, the position of the adjusting plate 14 can be adjusted according to the airflow direction and the temperature of each battery pack 10, thereby adjusting the opening area of ​​the airflow through hole in each battery pack 10. This allows different battery packs 10 to have different opening areas of airflow through holes, thus adjusting the airflow rate within each battery pack 10 to balance the temperature of each battery pack 10. Therefore, this air-cooled energy storage device can achieve a more uniform cooling effect among multiple battery packs 10, improving the overall performance and lifespan consistency of the battery packs 10.

[0027] Furthermore, in this embodiment, from the air inlet direction to the air outlet direction of the air-cooled energy storage device's casing, the area of ​​the airflow perforation holes on the battery pack 10 gradually increases. Figure 1 For example, if the air inlet is on the upper side of the multiple battery packs 10 and the air outlet is on the lower side of the multiple battery packs 10, then the area of ​​the airflow through holes of the battery packs 10 will gradually increase from top to bottom. That is, the further away the air inlet of the battery pack 10 is from the housing, the larger the opening of the airflow through holes will be.

[0028] Please continue reading Figures 2 to 4In this embodiment, two first side plates 111 extending along a first direction and two opposing second side plates 112 extending along a second direction are formed on the housing 11. An angle is formed between the extending directions of the first side plates 111 and the second side plates 112, preferably they are perpendicular to each other. A fan 13 is disposed on one of the first side plates 111, and a first through hole 151 is formed on the second side plate 112. Preferably, each second side plate 112 is provided with a plurality of first through holes 151. The plurality of first through holes 151 are arranged in an array on both second side plates 112.

[0029] That is, in this embodiment, when the fan 13 is drawing air, the airflow can enter the housing 11 through the first through holes 151 on the two second side plates 112 and flow out from the location of the fan 13. Correspondingly, an adjustment plate 14 is provided on each second side plate 112.

[0030] For ease of assembly, the adjustment plate 14 can be disposed on the outer side wall of the housing 11, that is, the adjustment plate 14 is located on the outer side of the second side plate 112.

[0031] To facilitate the sliding of the adjusting plate 14 relative to the housing 11, in this embodiment, slide rails 113 are provided on both the upper and lower sides of the second side plate 112, and the extending direction of the slide rails 113 is parallel to the extending direction of the second side plate 112. The adjusting plate 14 is slidably mounted on the slide rails 113.

[0032] Furthermore, there can be multiple second through holes 152 on the adjusting plate 14. In order to facilitate the adjustment of the adjusting plate 14, the area of ​​the second through hole 152 is larger than the area of ​​the first through hole 151, and multiple first through holes 151 correspond to one second through hole 152 at the same time.

[0033] like Figures 2 to 3 As shown, on the second side plate 112, multiple first through holes 151 are sequentially arranged along the height direction to form a first through hole array, and multiple first through hole arrays are sequentially arranged along the length direction of the second side plate 112 to form an array of first through holes 151. On the adjusting plate 14, multiple second through holes 152 are also arranged along one side of the length direction of the second side plate 112, with each second through hole 152 corresponding to a position of a first through hole array. That is, when the adjusting plate 14 is moved, the same second through hole 152 can block all the through holes on the same first through hole array.

[0034] Furthermore, a handle 141 is formed on one end of the adjusting plate 14 protruding outward from the housing 11. The handle 141 facilitates the pulling of the adjusting plate 14 to change its position.

[0035] In this embodiment, there are multiple battery cells 12, and a harmonica tube 121 is disposed between two battery cells 12. When airflow enters the housing 11 through the airflow through the airflow through hole, the airflow can enter between the two battery cells 12 through the harmonica tube 121 and then flow out from the fan 13. In order to optimize the airflow direction, the opening of the harmonica tube 121 corresponds to the position of the airflow through hole.

[0036] Furthermore, in this embodiment, in order to optimize the airflow within each battery pack 10, the area of ​​the first through hole 151 on the second side plate 112 continuously decreases from the side away from the fan 13 to the side closer to the fan 13; correspondingly, the area of ​​the second through hole 152 on the adjustment plate 14 also continuously decreases from the side away from the fan 13 to the side closer to the fan 13.

[0037] That is, within the same battery pack 10, the further away from the fan 13 the greater the flow rate of air entering the housing 11 through the airflow through the airflow through hole.

[0038] Furthermore, the battery pack 10 also includes an air duct 16 and an air duct baffle 17. The air duct 16 is disposed on the end of the harmonica tube 121 away from the first through hole 151, the fan 13 is disposed on the first side plate 111, and the air duct baffle 17 covers the fan 13 from the inside of the first side plate 111. An opening is provided on the air duct baffle 17, and the position of the end of the air duct 16 away from the harmonica tube 121 corresponds to the position of the opening on the air duct baffle 17.

[0039] When the fan 13 is drawing air, the airflow enters the harmonica tube 121 through the airflow through hole, and the harmonica tube 121 dissipates heat on the battery cell 12. The airflow flowing out of the harmonica tube 121 enters the air guide 16, and the airflow flowing out of the air guide 16 passes through the air duct baffle 17 and is discharged from the fan 13.

[0040] In summary, in this invention, by adjusting the second through hole 152 on the adjusting plate 14 and allowing the adjusting plate 14 to slide on the housing 11, the opening area of ​​the airflow through hole entering the battery pack 10 can be adjusted, thereby adjusting the airflow rate through the airflow through hole. In the air-cooled energy storage device, multiple battery packs 10 are housed in a single enclosure (not shown in the figure). Therefore, the airflow generated by the air conditioning mechanism within the entire enclosure has a specific direction. During use, the position of the adjusting plate 14 can be adjusted according to the airflow direction and the temperature of each battery pack 10, thereby adjusting the opening area of ​​the airflow through hole in each battery pack 10. This allows different battery packs 10 to have different opening areas of airflow through holes, thus adjusting the airflow rate within each battery pack 10 to balance the temperature of each battery pack 10. Therefore, this air-cooled energy storage device can achieve a more uniform cooling effect among multiple battery packs 10, improving the overall performance and lifespan consistency of the battery packs 10.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An air-cooled energy storage device, characterized in that: The device includes multiple battery packs stacked together. Each battery pack includes a housing, battery cells, a fan, and an adjustment plate. The battery cells are disposed inside the housing. The fan is connected to the housing and is used to create airflow between the inside and outside of the housing. A first through hole connecting the inside and outside of the housing is formed on the side wall of the housing. A second through hole penetrating both sides of the adjustment plate is formed on the adjustment plate. The first through hole and the second through hole together form an airflow perforation on the housing. The adjustment plate is slidably disposed on the side wall of the housing to change the relative position of the first through hole and the second through hole, thereby changing the size of the airflow perforation.

2. The air-cooled energy storage device according to claim 1, characterized in that: From the air inlet to the air outlet of the air-cooled energy storage device, the area of ​​the airflow through-hole on the battery pack gradually increases.

3. The air-cooled energy storage device according to claim 1, characterized in that: A first side plate extending in a first direction and a second side plate extending in a second direction are formed on the housing. An angle is formed between the extending directions of the first side plate and the second side plate. The fan is disposed on the first side plate. The first through hole is disposed on the second side plate. Each second side plate is provided with a plurality of first through holes.

4. The air-cooled energy storage device according to claim 3, characterized in that: There are two second side plates, which are arranged to interact with each other, and each second side plate is provided with multiple first through holes.

5. The air-cooled energy storage device according to claim 4, characterized in that: Multiple first through holes are sequentially arranged along the height direction of the second side plate to form a first through hole row, and multiple first through hole rows are arranged along the length direction of the second side plate so that the first through holes are arranged in an array on the second side plate.

6. The air-cooled energy storage device according to claim 5, characterized in that: On the adjustment plate, there are multiple second through holes, which are arranged along the length of the second side plate, and each second through hole corresponds to the position of a first through hole row.

7. The air-cooled energy storage device according to claim 3, characterized in that: A slide rail is provided on the outer side of the second side plate, and the adjusting plate is slidably mounted on the slide rail.

8. The air-cooled energy storage device according to claim 3, characterized in that: A handle is also provided on one end of the adjustment plate.

9. The air-cooled energy storage device according to claim 1, characterized in that: Within the same battery pack, there are multiple battery cells, and a harmonica tube is provided between two battery cells, with the opening of the harmonica tube corresponding to the position of the airflow through hole.

10. The air-cooled energy storage device according to claim 9, characterized in that: The battery pack includes an air duct and an air duct baffle. The air duct is located on the end of the harmonica tube away from the first through hole. The fan is located on the side wall of the housing. The air duct baffle covers the fan from the inside of the housing. The air duct baffle has an opening. The end of the air duct away from the harmonica tube corresponds to the position of the opening on the air duct baffle.

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