A stacked energy storage device

Abstract

This utility model discloses a stacked energy storage device, including a support plate and several energy storage components. Each energy storage component includes an energy storage unit, support legs, and L-shaped limiting plates. The support legs are fixedly installed at the bottom corners of the energy storage units, and the L-shaped limiting plates are fixedly installed at the top corners of the energy storage units. Multiple energy storage units are stacked together, with the support legs of the upper energy storage units inserted into the inner side of the L-shaped limiting plates on the top surface of the lower energy storage units. Multiple limiting frames are fixedly installed on the top surface of the support plate, with the support legs of the lowest energy storage unit inserted into the inner side of the limiting frames. A support plate is fixedly installed on the top surface of the support plate, and multiple insertion holes are provided on the side of the support plate. This utility model allows multiple energy storage units to be stacked together, and the limiting components, in cooperation with the support plate, limit the movement of the energy storage units, preventing them from shifting.

Description

Technical Field

[0001] This utility model relates to the field of stacked energy storage, specifically a stacked energy storage device. Background Technology

[0002] In the field of energy storage technology applications, the integration and heat dissipation performance of energy storage devices directly affect the energy density and operational safety of the system. With the rapid development of the new energy industry, large-scale energy storage scenarios are increasingly demanding higher requirements for device stacking efficiency and heat dissipation reliability.

[0003] Traditional energy storage devices mostly adopt a tightly packed stacked structure, with a lack of effective heat dissipation space between energy storage units. This leads to heat accumulation during operation and a continuous rise in internal temperature. In lithium battery energy storage systems, tight stacking can cause the temperature difference of the battery pack to exceed 10°C, which not only reduces energy conversion efficiency but may also trigger the risk of thermal runaway, seriously affecting the service life and safety of the energy storage device. Furthermore, the stability of existing stacked structures is difficult to adapt to different numbers of energy storage devices. When it is necessary to add or remove energy storage units, the problem of the overall structure's center of gravity shifting or support imbalance becomes prominent. Especially when the number of stacked units is large, the phenomenon of energy storage units shifting and becoming unstable is prone to occur, leading to equipment damage or system failure. Therefore, it is necessary to design a stacked energy storage device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a stacked energy storage device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stacked energy storage device, comprising a support plate and several energy storage components, wherein each energy storage component comprises an energy storage unit, a support leg, and an L-shaped limiting plate. The support leg is fixedly installed at the corner of the bottom surface of the energy storage unit, and the L-shaped limiting plate is fixedly installed at the corner of the top surface of the energy storage unit. Multiple energy storage units are stacked together, and the support leg on the bottom surface of the upper energy storage unit is inserted into the inner side of the L-shaped limiting plate on the top surface of the lower energy storage unit.

[0006] Multiple limiting frames are fixedly installed on the top surface of the support plate. The support leg of the bottom surface of the energy storage unit is inserted into the inner side of the limiting frame. A support plate is fixedly installed on the top surface of the support plate. Multiple insertion holes are opened on the side of the support plate. A limiting component for pressing down the upper energy storage unit is provided on the outside of the support plate. A heat dissipation component that can be adjusted vertically is provided on the outside of the support plate.

[0007] Preferably, the limiting component includes a first movable sleeve, which is slidably installed on the outside of the support plate. Two L-shaped pressure plates are fixedly installed on the outside of the first movable sleeve, and two inserts are fixedly installed on the bottom surface of the L-shaped pressure plates. The inserts pass through the inner side of the uppermost L-shaped limiting plate.

[0008] Preferably, the heat dissipation assembly includes one or more second movable sleeves, the second movable sleeves are slidably mounted on the outside of the support plate, fans are fixedly mounted on both sides of the second movable sleeves, and threaded components passing through the insertion holes are provided inside the second movable sleeve and the first movable sleeve.

[0009] Preferably, the threaded assembly includes a threaded rod that is threadedly connected to the inside of the second movable sleeve or the first movable sleeve. A knob is fixedly installed at one end of the threaded rod, and the other end of the threaded rod passes through the insertion hole.

[0010] Preferably, the major diameter of the threaded rod is appropriately matched with the inner diameter of the insertion hole.

[0011] Preferably, the cross-sectional dimensions of the support leg are appropriately matched with the cross-sectional dimensions of the inner side of the limiting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this stacked energy storage device, the support leg of the upper energy storage unit is inserted into the inner side of the L-shaped limiting plate on the top surface of the energy storage unit below it. The support leg of the lowermost energy storage unit is inserted into the limiting frame, and the control block is inserted into the inner side of the L-shaped limiting plate on the top surface of the uppermost energy storage unit. The block is screwed into the insertion hole through the threaded rod on the surface of the first movable sleeve. At this time, the first movable sleeve, the L-shaped pressure plate, and the insertion block cannot move vertically. Multiple energy storage units are vertically limited by the support plate and the L-shaped pressure plate. The cooperation between the support leg and the L-shaped limiting plate can limit the energy storage units horizontally, ensuring the stability of the stacked energy storage units and preventing displacement.

[0014] 2. In this stacked energy storage device, there are support legs between two adjacent energy storage units, thus reserving a certain gap between the two adjacent energy storage units. By blowing air into the gap through the set fan, the temperature of the energy storage unit during charging and discharging can be reduced in a convenient way, thus avoiding thermal runaway of the energy storage unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0018] In the diagram: 1. Energy storage unit; 2. Support leg; 3. L-shaped limiting plate; 4. Support plate; 5. Limiting frame; 6. Support plate; 7. First movable sleeve; 8. L-shaped pressure plate; 9. Insert block; 10. Threaded rod; 11. Knob; 12. Fan; 13. Socket; 14. Second movable sleeve. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please refer to Figure 1-3 As shown, this utility model provides a stacked energy storage device, including a support plate 4 and several energy storage components. Each energy storage component includes an energy storage unit 1, a support leg 2, and an L-shaped limiting plate 3. The support leg 2 is fixedly installed at the corner of the bottom surface of the energy storage unit 1, and the L-shaped limiting plate 3 is fixedly installed at the corner of the top surface of the energy storage unit 1. Multiple energy storage units 1 are stacked together, and the support leg 2 on the bottom surface of the upper energy storage unit 1 is inserted into the inside of the L-shaped limiting plate 3 on the top surface of the lower energy storage unit 1.

[0022] Multiple limiting frames 5 are fixedly installed on the top surface of the support plate 4. The support leg 2 of the bottom surface of the lowest energy storage unit 1 is inserted into the inner side of the limiting frame 5. A support plate 6 is fixedly installed on the top surface of the support plate 4. Multiple insertion holes 13 are opened on the side of the support plate 6. A limiting component for pressing down the upper energy storage unit 1 is provided on the outside of the support plate 6. A heat dissipation component that can be adjusted vertically is provided on the outside of the support plate 6.

[0023] Specifically, multiple energy storage units 1 are stacked together, and the multiple energy storage units 1 are limited by the limiting component and the support plate 4 to prevent the energy storage units 1 from shifting.

[0024] The limiting component includes a first movable sleeve 7, which is slidably installed on the outside of the support plate 6. Two L-shaped pressure plates 8 are fixedly installed on the outside of the first movable sleeve 7. Two inserts 9 are fixedly installed on the bottom surface of the L-shaped pressure plates 8. The inserts 9 pass through the inner side of the uppermost L-shaped limiting plate 3. Multiple energy storage units 1 are vertically limited by the support plate 4 and the L-shaped pressure plates 8. The cooperation between the support leg 2 and the L-shaped limiting plate 3 can limit the energy storage units 1 in the horizontal direction, ensuring the stability of the energy storage units 1 when stacked and preventing displacement.

[0025] The heat dissipation component includes one or more second movable sleeves 14. The second movable sleeves 14 are slidably installed on the outside of the support plate 6. Fans 12 are fixedly installed on both sides of the second movable sleeves 14. The second movable sleeves 14 and the first movable sleeves 7 are both provided with threaded components that pass through the insertion hole 13. The fan 12 blows air to the gap between the two energy storage units 1, which helps to improve the heat dissipation capacity of the device.

[0026] The threaded assembly includes a threaded rod 10, which is threadedly connected to the inside of the second movable sleeve 14 or the first movable sleeve 7. A knob 11 is fixedly installed at one end of the threaded rod 10, and the other end of the threaded rod 10 passes through the insertion hole 13. The major diameter of the threaded rod 10 is appropriately matched with the inner diameter of the insertion hole 13. Rotating the knob 11 can drive the threaded rod 10 to rotate, thereby facilitating the control of the threaded rod 10 entering or leaving the insertion hole 13, and thus facilitating the change of the fixed state of the first movable sleeve 7 and the second movable sleeve 14.

[0027] Specifically, the cross-sectional dimensions of the support leg 2 are appropriately matched with the inner cross-sectional dimensions of the limiting frame 5, so that the support leg 2 can just pass through the limiting frame 5, thereby achieving the effect of limiting the support leg 2 and the energy storage unit 1 in the horizontal direction.

[0028] Working principle: This utility model is a stacked energy storage device. When in use, the support leg 2 of the upper energy storage unit 1 is inserted into the inner side of the L-shaped limiting plate 3 on the top surface of the lower energy storage unit 1. The support leg 2 of the lowermost energy storage unit 1 is inserted into the limiting frame 5, and the insertion block 9 is inserted into the inner side of the L-shaped limiting plate 3 on the top surface of the uppermost energy storage unit 1. By screwing the threaded rod 10 on the surface of the first movable sleeve 7 into the insertion hole 13, the first movable sleeve 7, the L-shaped pressure plate 8, and the insertion block 9 cannot move vertically. Multiple energy storage units 1 are vertically limited by the support plate 4 and the L-shaped pressure plate 8. The cooperation of the support leg 2 and the L-shaped limiting plate 3 can limit the energy storage unit 1 in the horizontal direction, ensuring the stability of the stacked energy storage units 1 and preventing displacement.

[0029] There is a support leg 2 between two adjacent energy storage units 1, so as to reserve a certain gap between the two adjacent energy storage units 1. By blowing air into the gap through the fan 12, the temperature of the energy storage unit 1 during charging and discharging can be reduced in a convenient way, thus avoiding thermal runaway of the energy storage unit 1.

[0030] When it is necessary to increase or decrease the number of energy storage units 1, first turn the knob 11 on one side of the first movable sleeve 7 to drive the threaded rod 10 to rotate and disengage the threaded rod 10 from the insertion hole 13. At this time, the first movable sleeve 7 can be controlled to move upward until it disengages from the outside of the support plate 6. Then, remove the upper energy storage unit 1 or stack the newly added energy storage unit 1 on the top surface of the uppermost energy storage unit 1. By turning the knob 11 on one side of the second movable sleeve 14, the threaded rod 10 can be disengaged from the insertion hole 13, thus facilitating the change of the position of the second movable sleeve 14. When it is necessary to increase the number of second movable sleeves 14, put the extra second movable sleeve 14 on the outside of the support plate 6 and slide it to the corresponding position. The threaded rod 10 can be screwed into the insertion hole 13. When it is necessary to reduce the number of second movable sleeves 14, the second movable sleeves 14 can be removed from the outside of the support plate 6. The number of second movable sleeves 14 and fans 12 can be adjusted according to the increase or decrease of the number of energy storage units 1. Finally, the first movable sleeve 7 is put on the outside of the support plate 6, and the first movable sleeve 7 is controlled to move downward until the insertion block 9 is inserted into the inside of the L-shaped limiting plate 3 on the top surface of the newly stacked energy storage unit 1. The threaded rod 10 connected to one side of the first movable sleeve 7 is screwed into the insertion hole 13 to complete the work of increasing the energy storage unit 1. The device can be flexibly adjusted according to the number of energy storage units 1 to ensure stability and heat dissipation effect.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stacked energy storage device, comprising a support plate (4) and a plurality of energy storage components, characterized in that: The energy storage component includes an energy storage unit (1), a support leg (2) and an L-shaped limiting plate (3). The support leg (2) is fixedly installed at the corner of the bottom surface of the energy storage unit (1), and the L-shaped limiting plate (3) is fixedly installed at the corner of the top surface of the energy storage unit (1). Multiple energy storage units (1) are stacked together, and the support leg (2) on the bottom surface of the upper energy storage unit (1) is inserted into the inside of the L-shaped limiting plate (3) on the top surface of the lower energy storage unit (1). Multiple limiting frames (5) are fixedly installed on the top surface of the support plate (4). The support leg (2) of the bottom surface of the lowest energy storage unit (1) is inserted into the inner side of the limiting frame (5). A support plate (6) is fixedly installed on the top surface of the support plate (4). Multiple insertion holes (13) are opened on the side of the support plate (6). A limiting component for pressing down the upper energy storage unit (1) is provided on the outside of the support plate (6). A heat dissipation component that can be adjusted vertically is provided on the outside of the support plate (6).

2. The stacked energy storage device according to claim 1, characterized in that: The limiting component includes a first movable sleeve (7), which is slidably installed on the outside of the support plate (6). Two L-shaped pressure plates (8) are fixedly installed on the outside of the first movable sleeve (7). Two inserts (9) are fixedly installed on the bottom surface of the L-shaped pressure plates (8). The inserts (9) pass through the inner side of the uppermost L-shaped limiting plate (3).

3. A stacked energy storage device according to claim 2, characterized in that: The heat dissipation assembly includes one or more second movable sleeves (14), which are slidably installed on the outside of the support plate (6). Fans (12) are fixedly installed on both sides of the second movable sleeve (14). Threaded components that pass through the insertion hole (13) are provided inside the second movable sleeve (14) and the first movable sleeve (7).

4. A stacked energy storage device according to claim 3, characterized in that: The threaded assembly includes a threaded rod (10), which is threadedly connected to the inside of the second movable sleeve (14) or the first movable sleeve (7). A knob (11) is fixedly installed at one end of the threaded rod (10), and the other end of the threaded rod (10) passes through the insertion hole (13).

5. A stacked energy storage device according to claim 4, characterized in that: The major diameter of the threaded rod (10) is appropriately matched with the inner diameter of the insertion hole (13).

6. A stacked energy storage device according to claim 1, characterized in that: The cross-sectional dimensions of the support leg (2) are appropriately matched with the inner cross-sectional dimensions of the limiting frame (5).

Images