Aluminum shell battery module structure for energy storage

Abstract

The utility model relates to the technical field of batteries, and discloses an aluminum shell battery module structure for energy storage, which comprises an aluminum shell, a plurality of limiting grooves are arranged on both sides of the inner bottom wall of the aluminum shell, and the inner side walls of the plurality of limiting grooves are connected with battery units in an attached manner. According to the battery module, heat generated by the battery units can be quickly conducted out, heat dissipation of the interior of the battery module is facilitated, meanwhile, a heat dissipation fan is arranged, and the heat dissipation effect is further improved by increasing the flowing speed of air in a heat dissipation channel; the sealing strip on the outer side of the upper surface of the aluminum shell is connected with the sealing groove in the outer side of the lower surface of the aluminum cover in an attached mode, a good sealing structure is formed, dust, water and other impurities are effectively prevented from entering the battery module, influences on the performance and the service life of the battery unit are avoided, meanwhile, vibration impact force can be absorbed and buffered through the lower shock pad and the upper shock pad, and the service life of the battery unit is prolonged. Therefore, the battery unit is effectively protected from being impacted and damaged by external force.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an aluminum shell battery module structure for energy storage. Background Art

[0002] With the continuous development of new energy technologies, energy storage systems are increasingly being used in fields such as electricity and transportation. As a core component of energy storage systems, the performance and reliability of battery modules directly impact the overall operation of the entire system. Currently, common energy storage battery modules on the market have some shortcomings in terms of structure and performance.

[0003] In order to achieve a good sealing effect, some existing battery modules are well sealed, but internal heat cannot be discharged, and the heat dissipation performance is not ideal. Long-term use can easily cause the battery temperature to be too high, affecting the battery life and performance; some battery modules are provided with ventilation holes, heat dissipation holes, etc. for the purpose of heat dissipation, resulting in poor sealing performance of the battery modules, which easily allows dust, moisture and other impurities to enter the module, affecting the normal operation of the battery; in addition, the existing battery modules are not well designed in terms of shock absorption, and the battery cells are easily damaged when subjected to external force. For this reason, an aluminum shell battery module structure for energy storage is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide an aluminum shell battery module structure for energy storage, so as to solve the problems of the battery module proposed in the above background technology in terms of unsatisfactory heat dissipation performance, poor sealing performance and imperfect shock absorption design.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aluminum shell battery module structure for energy storage, comprising an aluminum shell, a plurality of limiting grooves are provided on both sides of the inner bottom wall of the aluminum shell, the inner side walls of the plurality of limiting grooves are fitted and connected with battery cells, the inner bottom wall of the limiting groove is fixedly connected with a lower shock-absorbing pad, the lower surface of the battery cell is fitted and connected to the upper surface of the lower shock-absorbing pad, side heat dissipation plates are provided on both sides of the inner side wall of the aluminum shell, a heat dissipation baffle is provided in the middle of the inner side wall of the aluminum shell, a plurality of first limiting slots are provided on the side of the side heat dissipation plate close to the heat dissipation baffle, and the outer side wall of the battery cell is fixed with a lower shock-absorbing pad. The side is slidingly connected to the inner wall of the first limiting slot, and a plurality of second limiting slots are provided on the side of the heat dissipation baffle close to the side heat dissipation plate, and the other side of the outer wall of the battery unit is slidingly connected to the inner wall of the second limiting slot, and the inner front wall and the inner rear wall of the aluminum shell are fixedly connected with connecting blocks on both sides, and the upper surfaces of the two connecting blocks on the same side are fixedly connected to the pressure plate by screws, and the lower surface of the pressure plate is provided with a plurality of limiting slots, and the inner top wall of the limiting slot is fixedly connected with an upper shock-absorbing pad, the upper middle part of the upper surface of the battery unit is fit-connected to the lower surface of the upper shock-absorbing pad, and the upper surface of the aluminum shell is fixedly connected to the aluminum cover by multiple screws.

[0006] Preferably, the front surfaces of the above-mentioned side heat dissipation plates and heat dissipation partitions are provided with multiple heat dissipation channels, the front surface of the aluminum shell is provided with air outlets on both sides and the middle, one end of the heat dissipation channel is connected to the air outlet, the rear surface of the aluminum shell is provided with air inlets on both sides and the middle, the other end of the heat dissipation channel is connected to the air inlet, the outer side of the front surface of the aluminum shell is fixedly connected to an air suction box, the center of the front surface of the air suction box is provided with a heat dissipation hole, and the inner side wall of the heat dissipation hole is fixedly connected to a cooling fan.

[0007] Preferably, a temperature sensor is provided at the center of the upper surface of the above-mentioned heat dissipation baffle, and a controller is installed in the middle of the upper surface of the air suction box. The output end of the temperature sensor is electrically connected to the input end of the controller, and the input end of the heat dissipation fan is electrically connected to the output end of the controller.

[0008] Preferably, a sealing strip is fixedly connected to the outer side of the upper surface of the aluminum shell, a sealing groove is opened on the outer side of the lower surface of the aluminum cover, and the outer side wall of the sealing strip is fitted and connected to the inner side wall of the sealing groove.

[0009] Preferably, a plurality of connecting legs are welded to the top of both sides of the inner wall of the aluminum shell, a thread hole is opened at the center of the upper surface of the connecting leg, and the lower part of the outer wall of the screw is threadedly connected to the inner wall of the thread hole.

[0010] Preferably, a display screen is provided on the upper surface of the controller.

[0011] Preferably, mounting feet are welded to the front and rear of both sides of the aluminum housing, and mounting holes are provided on the front and rear of the upper surfaces of the mounting feet.

[0012] Preferably, a positive electrode connecting post and a negative electrode connecting post are respectively provided on both sides of the upper surface of the battery unit.

[0013] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0014] 1. The utility model can quickly conduct the heat generated by the battery unit through the side heat dissipation plates and heat dissipation partitions, which helps to dissipate heat inside the battery module. At the same time, it is equipped with a heat dissipation fan to further improve the heat dissipation effect by accelerating the flow speed of air in the heat dissipation channel;

[0015] 2. The utility model forms a good sealing structure by fitting the sealing strip on the outer side of the upper surface of the aluminum shell with the sealing groove on the outer side of the lower surface of the aluminum cover, which effectively prevents impurities such as dust and moisture from entering the battery module and avoiding affecting the performance and life of the battery unit. At the same time, the lower shock-absorbing pad and the upper shock-absorbing pad can absorb and buffer the vibration impact force when the battery module is vibrated, thereby effectively protecting the battery unit from damage due to external force impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the battery unit and pressure plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lower shock-absorbing pad and the heat dissipation partition of the utility model;

[0020] Figure 4 This is a schematic diagram of the upper shock-absorbing pad and aluminum cover structure of the utility model.

[0021] Explanation of the accompanying drawings: 11. Aluminum shell; 12. Limiting groove; 13. Battery unit; 14. Lower shock-absorbing pad; 15. Side heat dissipation plate; 16. Heat dissipation partition; 17. First limiting slot; 18. Second limiting slot; 19. Connecting block; 20. Pressing plate; 21. Limiting slot; 22. Upper shock-absorbing pad; 23. Screw; 24. Aluminum cover; 25. Heat dissipation channel; 26. Air outlet; 27. Air inlet; 28. Air suction box; 29. Heat dissipation hole; 30. Cooling fan; 31. Temperature sensor; 32. Controller; 33. Sealing strip; 34. Sealing groove; 35. Connecting foot; 36. Thread hole; 37. Display screen; 38. Mounting foot; 39. Mounting hole; 40. Positive connecting post; 41. Negative connecting post; 42. Screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0024] Example

[0025] In the existing technology, the heat dissipation performance of the battery module is not ideal, the sealing performance is poor, and the shock absorption design is not perfect.

[0026] See also Figure 1-4The utility model provides a technical solution: an aluminum shell battery module structure for energy storage, comprising an aluminum shell 11, a plurality of limiting grooves 12 are provided on both sides of the inner bottom wall of the aluminum shell 11, the inner side walls of the plurality of limiting grooves 12 are all fitted and connected with battery cells 13, the inner bottom wall of the limiting groove 12 is fixedly connected with a lower shock-absorbing pad 14, the lower surface of the battery cell 13 is fitted and connected to the upper surface of the lower shock-absorbing pad 14, side heat dissipation plates 15 are provided on both sides of the inner side wall of the aluminum shell 11, a heat dissipation partition 16 is provided in the middle of the inner side wall of the aluminum shell 11, a plurality of first limiting slots 17 are provided on the side of the side heat dissipation plate 15 close to the heat dissipation partition 16, one side of the outer side wall of the battery cell 13 is slidably connected to the inner side wall of the first limiting slot 17, a plurality of second limiting slots 18 are provided on the side of the heat dissipation partition 16 close to the side heat dissipation plate 15, the outer side wall of the battery cell 13 is slidably connected to the inner side wall of the first limiting slot 17, the outer side wall of the battery cell 13 is The other side of the side wall is slidably connected to the inner side wall of the second limiting slot 18, and the inner front wall and the inner rear wall of the aluminum shell 11 are fixedly connected with connecting blocks 19 on both sides. The upper surfaces of the two connecting blocks 19 on the same side are fixedly connected to the pressure plate 20 by screws 42. The lower surface of the pressure plate 20 is provided with a plurality of limiting slots 21, and the inner top wall of the limiting slot 21 is fixedly connected with an upper shock-absorbing pad 22. The upper middle part of the upper surface of the battery cell 13 is fitted and connected to the lower surface of the upper shock-absorbing pad 22. The upper surface of the aluminum shell 11 is fixedly connected to the aluminum cover 24 by a plurality of screws 23. The lower shock-absorbing pad 14 and the upper shock-absorbing pad 22 provide buffering for the battery cell 13 when it is subjected to vibration, thereby protecting the battery cell 13. The heat generated by the battery cell 13 is transferred to the aluminum shell 11 and the aluminum cover 24 through the side heat dissipation plate 15 and the heat dissipation partition 16, which helps to dissipate heat inside the battery module.

[0027] Preferably, the front surfaces of the above-mentioned side heat dissipation plates 15 and the heat dissipation baffles 16 are provided with multiple heat dissipation channels 25, and air outlets 26 are provided on both sides and the middle of the front surface of the aluminum shell 11. One end of the heat dissipation channel 25 is connected to the air outlet 26, and air inlets 27 are provided on both sides and the middle of the rear surface of the aluminum shell 11. The other end of the heat dissipation channel 25 is connected to the air inlet 27. An air suction box 28 is fixedly connected to the outer side of the front surface of the aluminum shell 11, and a heat dissipation hole 29 is provided at the center of the front surface of the air suction box 28. A heat dissipation fan 30 is fixedly connected to the inner wall of the heat dissipation hole 29. The air inside the air suction box 28 is discharged by the heat dissipation fan 30, so that negative pressure is generated inside the air suction box 28, and then the external air enters the heat dissipation channel 25 through the air inlet 27, and enters the air suction box 28 through the air outlet 26 and is discharged through the heat dissipation fan 30, thereby accelerating the flow speed of air in the heat dissipation channel 25, thereby improving the heat dissipation effect.

[0028] Preferably, a temperature sensor 31 is provided at the center of the upper surface of the above-mentioned heat dissipation baffle 16, and a controller 32 is installed in the middle of the upper surface of the air suction box 28. The output end of the temperature sensor 31 is electrically connected to the input end of the controller 32, and the input end of the heat dissipation fan 30 is electrically connected to the output end of the controller 32. The temperature inside the battery module is monitored in real time by the temperature sensor 31, and the temperature signal is transmitted to the controller 32, so that the controller 32 controls the working state of the heat dissipation fan 30 according to the temperature signal.

[0029] Preferably, a sealing strip 33 is fixedly connected to the outer side of the upper surface of the above-mentioned aluminum shell 11, and a sealing groove 34 is opened on the outer side of the lower surface of the aluminum cover 24. The outer wall of the sealing strip 33 is fitly connected to the inner wall of the sealing groove 34. The sealing strip 33 on the outer side of the upper surface of the aluminum shell 11 is fitly connected to the sealing groove 34 on the outer side of the upper surface of the aluminum cover 24, thereby forming a good sealing structure to prevent impurities such as dust and moisture from entering the interior of the battery module and affecting the performance and life of the battery cell 13.

[0030] Preferably, a plurality of connecting feet 35 are welded to the top of both sides of the inner wall of the above-mentioned aluminum shell 11, and a thread hole 36 is opened at the center of the upper surface of the connecting foot 35. The lower part of the outer wall of the screw 23 is threadedly connected to the inner wall of the thread hole 36. The connecting feet 35 on the top of both sides of the inner wall of the aluminum shell 11 are fixedly connected to the aluminum cover 24 through the screws 23, thereby ensuring the overall structural stability of the battery module.

[0031] Preferably, a display screen 37 is provided on the upper surface of the controller 32 , and the display screen 37 is used to conveniently display the working status of the cooling fan 30 and the temperature inside the battery module.

[0032] Preferably, mounting feet 38 are welded to the front and rear of both sides of the aluminum shell 11, and mounting holes 39 are provided on the front and rear of the upper surface of the mounting feet 38. The battery module can be conveniently installed in the energy storage device through the mounting feet 38 on the front and rear of both sides of the aluminum shell 11 and the mounting holes 39 on the front and rear of the upper surface of the mounting feet 38.

[0033] Preferably, a positive electrode connecting column 40 and a negative electrode connecting column 41 are respectively provided on both sides of the upper surface of the above-mentioned battery cell 13, and the electrical connection between the battery cells 13 is achieved through the positive electrode connecting column 40 and the negative electrode connecting column 41 on both sides of the upper surface of the battery cell 13, thereby realizing the storage and output of electric energy.

[0034] Working principle or structural principle, the battery cell 13 is placed in the limiting grooves 12 on both sides of the bottom wall of the aluminum shell 11. The limiting grooves 12 play a preliminary positioning role for the battery cell 13 to prevent the battery cell 13 from moving in the horizontal direction. The lower shock-absorbing pad 14 of the bottom wall of the limiting groove 12 fits with the lower surface of the battery cell 13. When the battery module is vibrated, the lower shock-absorbing pad 14 can absorb and buffer the impact force from the bottom to protect the battery cell 13. One side of the outer wall of the battery cell 13 is slidably connected to the first limiting slot 17 of the side heat dissipation plate 15, and the other side is slidably connected to the second limiting slot 18 of the heat dissipation partition 16, further fixing the battery cell 13. 3. To prevent it from shaking in the horizontal direction, the side heat dissipation plate 15 and the heat dissipation partition 16 provide lateral support and fixation for the battery unit 13 on the one hand, and can conduct the heat generated by the battery unit 13 when working on the other hand. The pressure plate 20 is fixed to the connecting blocks 19 on both sides of the front wall and the inner rear wall of the aluminum shell 11 by screws. The upper shock-absorbing pad 22 in the limiting slot 21 on the lower surface of the pressure plate 20 fits with the middle part of the upper surface of the battery unit 13, fixing the top of the battery unit 13 and providing buffering when it is shaken; the battery unit 13 generates heat during use, and the outside air enters from the air inlets 27 on both sides and the middle of the rear surface of the aluminum shell 11. The heat dissipation channel 25 passes through the heat dissipation baffle 16 and the front surface of the side heat dissipation plate 15, and the heat dissipation channel 25 provides a flow channel for air, thereby increasing the contact area between the air and the heat dissipation baffle 16 and the side heat dissipation plate 15, thereby improving the heat dissipation efficiency. The heat generated by the battery unit 13 carried by the air is discharged from the air outlet 26 on both sides and the middle of the front surface of the aluminum shell 11. A heat dissipation fan 30 is installed in the air suction box 28 on the outer side of the front surface of the aluminum shell 11. When the heat dissipation fan 30 is working, the heat in the air suction box 28 is discharged through the heat dissipation hole 29 at the center of the front surface of the air suction box 28, thereby accelerating the flow speed of the air in the heat dissipation channel 25, improving the heat dissipation effect, and the heat dissipation baffle The temperature sensor 31 at the center of the upper surface of 16 monitors the temperature inside the battery module in real time and transmits the temperature signal to the controller 32 in the middle of the upper surface of the suction box 28. When the temperature exceeds the set value, the controller 32 controls the cooling fan 30 to speed up and enhance the heat dissipation effect; when the temperature is lower than the set value, the controller 32 can reduce the speed of the cooling fan 30 or turn off the cooling fan 30 to save energy; at the same time, the sealing strip 33 on the outer side of the upper surface of the aluminum shell 11 is fitted and connected with the sealing groove 34 on the outer side of the upper surface of the aluminum cover 24 to form a good sealing structure to prevent impurities such as dust and moisture from entering the interior of the battery module and affecting the performance and life of the battery unit 13.

[0035] In summary, the utility model can quickly conduct the heat generated by the battery cells through the side heat dissipation plates and the heat dissipation partitions, which is helpful to dissipate heat inside the battery module, and is equipped with a heat dissipation fan, which further improves the heat dissipation effect by accelerating the flow rate of air in the heat dissipation channel; by accelerating the flow rate of air in the heat dissipation channel, the heat dissipation effect is further improved. At the same time, the temperature sensor and the controller can automatically adjust the working state of the heat dissipation fan according to the internal temperature of the battery module, speed up the speed to enhance heat dissipation when the temperature is too high, and reduce the speed or shut down to save energy when the temperature is low; through the sealing strip on the outer side of the upper surface of the aluminum shell and the sealing groove on the outer side of the lower surface of the aluminum cover, a good sealing structure is formed, which effectively prevents dust, moisture and other impurities from entering the interior of the battery module, thereby avoiding affecting the performance and life of the battery cell. At the same time, through the lower shock-absorbing pad and the upper shock-absorbing pad, when the battery module is vibrated, it can absorb and buffer the vibration impact force, thereby effectively protecting the battery cell from damage from external force impact.

[0036] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. An aluminum shell battery module structure for energy storage, comprising an aluminum shell (11), characterized in that: A plurality of limiting grooves (12) are provided on both sides of the inner bottom wall of the aluminum shell (11), and the inner side walls of the plurality of limiting grooves (12) are fitted and connected with battery units (13). The inner bottom wall of the limiting groove (12) is fixedly connected with a lower shock-absorbing pad (14), and the lower surface of the battery unit (13) is fitted and connected with the upper surface of the lower shock-absorbing pad (14). Side heat dissipation plates (15) are provided on both sides of the inner side wall of the aluminum shell (11), and a heat dissipation baffle (16) is provided in the middle of the inner side wall of the aluminum shell (11). A plurality of first limiting slots (17) are provided on one side of the side heat dissipation plate (15) close to the heat dissipation baffle (16). One side of the outer side wall of the battery unit (13) is slidably connected to the inner side wall of the first limiting slot (17). The heat dissipation baffle (16) is provided on the inner side wall of the aluminum shell (11). 6) is provided with a plurality of second limiting slots (18) on one side close to the side heat dissipation plate (15), the other side of the outer wall of the battery unit (13) is slidably connected to the inner wall of the second limiting slot (18), the inner front wall and the inner rear wall of the aluminum shell (11) are fixedly connected with connecting blocks (19) on both sides, the upper surfaces of the two connecting blocks (19) on the same side are fixedly connected to a pressure plate (20) by screws (42), the lower surface of the pressure plate (20) is provided with a plurality of limiting slots (21), the inner top wall of the limiting slot (21) is fixedly connected to an upper shock-absorbing pad (22), the middle part of the upper surface of the battery unit (13) is fitted and connected to the lower surface of the upper shock-absorbing pad (22), and the upper surface of the aluminum shell (11) is fixedly connected to an aluminum cover (24) by a plurality of screws (23).

2. The aluminum shell battery module structure for energy storage according to claim 1, characterized in that: The front surfaces of the side heat dissipation plates (15) and the heat dissipation baffles (16) are both provided with a plurality of heat dissipation channels (25); air outlets (26) are both provided on both sides and in the middle of the front surface of the aluminum shell (11); one end of the heat dissipation channel (25) is connected to the air outlet (26); air inlets (27) are both provided on both sides and in the middle of the rear surface of the aluminum shell (11); the other end of the heat dissipation channel (25) is connected to the air inlet (27); an air suction box (28) is fixedly connected to the outer side of the front surface of the aluminum shell (11); a heat dissipation hole (29) is provided at the center of the front surface of the air suction box (28); and a heat dissipation fan (30) is fixedly connected to the inner wall of the heat dissipation hole (29).

3. The aluminum shell battery module structure for energy storage according to claim 2, characterized in that: A temperature sensor (31) is provided at the center of the upper surface of the heat dissipation baffle (16), a controller (32) is installed in the middle of the upper surface of the air suction box (28), the output end of the temperature sensor (31) is electrically connected to the input end of the controller (32), and the input end of the heat dissipation fan (30) is electrically connected to the output end of the controller (32).

4. The aluminum shell battery module structure for energy storage according to claim 1, characterized in that: A sealing strip (33) is fixedly connected to the outer side of the upper surface of the aluminum shell (11), a sealing groove (34) is opened on the outer side of the lower surface of the aluminum cover (24), and the outer side wall of the sealing strip (33) is connected to the inner side wall of the sealing groove (34).

5. The aluminum shell battery module structure for energy storage according to claim 1, characterized in that: A plurality of connecting legs (35) are welded to the top of both sides of the inner wall of the aluminum shell (11), a thread hole (36) is opened at the center of the upper surface of the connecting leg (35), and the lower part of the outer wall of the screw (23) is threadedly connected to the inner wall of the thread hole (36).

6. The aluminum shell battery module structure for energy storage according to claim 3, characterized in that: The upper surface of the controller (32) is provided with a display screen (37).

7. The aluminum shell battery module structure for energy storage according to claim 1, characterized in that: Mounting feet (38) are welded to the front and rear of both sides of the aluminum housing (11), and mounting holes (39) are provided on the front and rear of the upper surface of the mounting feet (38).

8. The aluminum shell battery module structure for energy storage according to claim 1, characterized in that: A positive electrode connecting column (40) and a negative electrode connecting column (41) are respectively provided on both sides of the upper surface of the battery unit (13).

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