A double-sided cooling soft package large module

Abstract

The utility model discloses a kind of double-side cooling soft package big module, comprising: multiple battery pieces of uniform distribution, the outside of multiple battery pieces is provided with two side plates of symmetrical distribution, the inside of two side plates is slidably connected with two clamping plates of symmetrical distribution, two clamping plates are contacted with battery piece, the end of multiple battery pieces is contacted with two partition plates of symmetrical distribution, the side wall of two partition plates is contacted with the sealing plate of symmetrical distribution, the side wall of two sealing plates is evenly provided with multiple connection components for connecting clamping plate;The utility model is set by setting heat dissipation component, heat dissipation component can quickly conduct and emit the heat generated by electrode column, so that it is maintained at suitable working temperature, ensure that electric energy is stably and efficiently transmitted, reduce loss, simultaneously, delay material aging speed, reduce failure occurrence probability, improve the reliability and stability of entire battery module operation, prolong the overall service life of module.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack large module technology, specifically a double-sided cooling soft-pack large module. Background Technology

[0002] In today's era of energy transition and rapid development of electric vehicles, battery modules, as key components for energy storage and conversion, directly impact the stable operation of the entire energy system and the user experience and safety of electric vehicles. Traditional battery modules have gradually revealed numerous problems in structural design, heat dissipation performance, and safety protection, making it difficult to meet the ever-increasing demands for high performance, high safety, and long lifespan.

[0003] When existing devices are in use, the existing dual-sided cooling design often ignores the heat dissipation requirements of the tabs. During high-rate discharge, the heat generation rate of the positive and negative tabs is high, resulting in the temperature of the tab area being significantly higher than that of the main body of the cell, forming local hot spots and accelerating the aging of the tabs. Therefore, we need to propose a dual-sided cooling soft-pack large module. Utility Model Content

[0004] The purpose of this invention is to provide a double-sided cooling soft-pack large module, which, by incorporating heat dissipation components, facilitates the reduction of the temperature of the electrode posts, enabling stable use of the electrode posts and thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dual-sided cooling soft-pack large module includes:

[0007] A plurality of uniformly distributed battery cells are provided with two symmetrically distributed side plates on the outer side of the plurality of battery cells. Two symmetrically distributed snap-fit ​​plates are slidably connected inside the two side plates. Both snap-fit ​​plates are in contact with the battery cells. The ends of the plurality of battery cells are in contact with two symmetrically distributed partitions. The side walls of the two partitions are in contact with symmetrically distributed sealing plates. The side walls of the two sealing plates are provided with a plurality of connecting components for connecting the snap-fit ​​plates.

[0008] Two symmetrically distributed electrode posts are fixedly connected inside one of the sealing plates, and a heat dissipation component for dissipating heat from the electrode posts is provided on the side wall of one of the sealing plates.

[0009] Preferably, the heat dissipation assembly includes a heat-conducting plate, through holes, corner frames, and fixing bolts;

[0010] One of the sealing plates has a heat-conducting plate in contact with its side wall. The heat-conducting plate is in contact with both side plates. The heat-conducting plate has two symmetrically distributed through holes inside. The two through holes are slidably connected to two electrode posts. Two symmetrically distributed corner frames are fixedly connected to the side walls of both side plates. Multiple corner frames are slidably connected to the heat-conducting plate. Multiple corner frames have fixing bolts inside. Multiple fixing bolts are threadedly connected to the heat-conducting plate.

[0011] Preferably, both side plates and snap-fit ​​plates are in contact with the partition and sealing plate.

[0012] Preferably, a fireproof plate is fixedly connected inside both of the two snap-fit ​​plates, and both of the fireproof plates are in contact with multiple battery cells.

[0013] Preferably, both side plates have water channels inside.

[0014] Preferably, the inlet ends of both water passages are fixedly connected to inlet pipes, and the outlet ends of both water passages are fixedly connected to outlet pipes.

[0015] Preferably, each of the plurality of connecting components includes a first fixing plate, a connecting bolt, and a second fixing plate;

[0016] The snap-fit ​​plate has multiple symmetrically distributed first fixing plates fixedly connected to its side wall. Each of the multiple first fixing plates has a connecting bolt inside, and each of the multiple connecting bolts has a second fixing plate threaded to its outside. Each of the multiple second fixing plates is fixedly connected to two sealing plates.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention incorporates a heat dissipation component, which can quickly conduct and dissipate the heat generated by the electrode posts, maintaining them at a suitable operating temperature. This ensures stable and efficient power transmission, reduces losses, slows down material aging, lowers the probability of failure, improves the reliability and stability of the entire battery module, and extends the overall lifespan of the module. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the side plate and snap-fit ​​plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the heat dissipation component of this utility model.

[0023] In the diagram: 1. Battery cell; 2. Side plate; 3. Clip plate; 4. Fireproof plate; 5. Water channel; 6. Water inlet pipe; 7. Water outlet pipe; 8. First fixing plate; 9. Connecting bolt; 10. Second fixing plate; 11. Partition plate; 12. Sealing plate; 13. Electrode post; 14. Heat-conducting plate; 15. Through hole; 16. Corner frame; 17. Fixing bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] A dual-sided cooling soft-pack large module includes:

[0027] Multiple battery cells 1 are evenly distributed. Two side plates 2 are symmetrically distributed on the outer side of the multiple battery cells 1. Two snap-fit ​​plates 3 are slidably connected inside the two side plates 2. Both snap-fit ​​plates 3 are in contact with the battery cells 1. Two partitions 11 are symmetrically distributed at the ends of the multiple battery cells 1. Two sealing plates 12 are symmetrically distributed on the side walls of the two partitions 11. The two side plates 2 and the snap-fit ​​plates 3 are in contact with the partitions 11 and the sealing plates 12. Multiple connecting components for connecting the snap-fit ​​plates 3 are provided on the side walls of the two sealing plates 12.

[0028] Two symmetrically distributed electrode posts 13 are fixedly connected inside one of the sealing plates 12, and a heat dissipation component for dissipating heat from the electrode posts 13 is provided on the side wall of one of the sealing plates 12.

[0029] For example, these battery cells 1 are the core energy storage components of the module. They are neatly arranged in a specific pattern to maximize space utilization and ensure stable power output. The side plates 2 not only support and fix the battery cells 1, but also provide an external protective frame for the entire module, preventing external factors from damaging the battery cells. The snap-fit ​​plates 3 can be flexibly adjusted in position through a sliding connection, thereby better contacting the battery cells 1 and achieving a stable clamping of the battery cells. Both snap-fit ​​plates 3 are in contact with the battery cells 1, ensuring that the battery cells do not shake within the module and guaranteeing the structural stability of the module. The partition plates 11 separate and position the ends of the battery cells, further enhancing the neatness of the battery cell arrangement. The sealing plates 12 can effectively... To prevent external dust and moisture from entering and protect the normal working environment of the battery cells, both side plates 2 and the snap-fit ​​plate 3 are in contact with the separator 11 and the sealing plate 12, forming a closed and stable overall structure. Multiple connecting components for connecting the snap-fit ​​plate 3 are provided on the side walls of the two sealing plates 12. Through these connecting components, the snap-fit ​​plate 3 and the sealing plate 12 are tightly connected together, which further improves the structural strength of the module. The electrode post 13 is a key component for connecting the module with the external circuit, and is responsible for the input and output of electrical energy. Since the electrode post 13 generates heat during operation, if it is not dissipated in time, it may affect its performance and service life. The setting of the heat dissipation component can effectively solve this problem and ensure that the electrode post 13 works at a suitable temperature.

[0030] The heat dissipation assembly includes a heat-conducting plate 14, a through hole 15, a corner frame 16, and a fixing bolt 17;

[0031] One of the sealing plates 12 has a heat-conducting plate 14 in contact with its side wall. The heat-conducting plate 14 is in contact with both side plates 2. The heat-conducting plate 14 has two symmetrically distributed through holes 15 inside. The two through holes 15 are slidably connected to two electrode posts 13. Two symmetrically distributed corner frames 16 are fixedly connected to the side walls of both side plates 2. The corner frames 16 are slidably connected to the heat-conducting plate 14. The corner frames 16 are all provided with fixing bolts 17 inside. The fixing bolts 17 are threadedly connected to the heat-conducting plate 14.

[0032] For example, the heat-conducting plate 14 is made of thermally conductive silicone, which is soft, has a high compression ratio, and good thermal conductivity and insulation properties. It can quickly conduct the heat generated by the electrode posts 13 away. The heat-conducting plate 14 is in contact with the two side plates 2, so that the heat can be further transferred to the side plates 2 for heat dissipation, thereby increasing the heat dissipation area. The heat-conducting plate 14 has two symmetrically distributed through holes 15 inside, and the two through holes 15 are slidably connected to the two electrode posts 13. This design allows the electrode posts 13 to be easily assembled with the heat-conducting plate 14 while ensuring good thermal conductivity contact. Two symmetrically distributed corner frames 16 are fixedly connected to the side walls of both side plates 2. The corner frames 16 serve to fix and position the heat-conducting plate 14, ensuring the stability of the heat-conducting plate 14 in the module. Multiple corner frames 16 are slidably connected to the heat-conducting plate 14, facilitating the installation and removal of the heat-conducting plate 14. Multiple corner frames 16 are equipped with fixing bolts 17 inside, and multiple fixing bolts 17 are threadedly connected to the heat-conducting plate 14. By tightening the fixing bolts 17, the heat-conducting plate 14 can be firmly fixed to the corner frames 16, preventing it from loosening during the operation of the module and ensuring the stability of the heat dissipation effect.

[0033] Fireproof plates 4 are fixedly connected inside both snap-fit ​​plates 3, and both fireproof plates 4 are in contact with multiple battery cells 1.

[0034] For example, the fireproof plate 4 is made of a material with good fire resistance, which can effectively prevent the spread of fire when the battery cell 1 catches fire accidentally, providing additional safety for the module. Both fireproof plates 4 are in contact with multiple battery cells 1, thus forming a fire barrier around the battery cells. Once a battery cell catches fire, the fireproof plate 4 can quickly take effect to prevent the fire from spreading to other battery cells and reduce the severity of the accident. At the same time, the contact design between the fireproof plate 4 and the battery cells will not affect the normal heat dissipation and working performance of the battery cells, thus ensuring the overall performance of the module while ensuring safety.

[0035] Both side panels 2 have water channels 5 inside, and the inlet end of each water channel 5 is fixedly connected to an inlet pipe 6, and the outlet end of each water channel 5 is fixedly connected to an outlet pipe 7.

[0036] For example, the water channel 5 is a key structure for the module to achieve dual-sided cooling. By opening the water channel inside the side plate, the coolant can circulate inside the module, carrying away the heat generated by the battery cells. The inlet ends of both water channels 5 are fixedly connected to the inlet pipes 6, which are responsible for introducing external coolant into the water channel 5 to provide sufficient cooling medium for the cooling process. The outlet ends of both water channels 5 are fixedly connected to the outlet pipes 7, which discharge the coolant that has absorbed heat from the module, so that the coolant can circulate continuously and ensure the cooling effect. This dual-sided cooling design can more evenly remove the heat generated by the battery cells, improve the heat dissipation efficiency of the module, ensure that the battery cells work within a suitable temperature range, extend the service life of the battery cells, and improve the overall performance and reliability of the module.

[0037] Each of the multiple connecting components includes a first fixing plate 8, a connecting bolt 9, and a second fixing plate 10;

[0038] Among them, multiple first fixing plates 8 are symmetrically distributed and fixedly connected to the side wall of the snap-fit ​​plate 3. Each of the multiple first fixing plates 8 is provided with a connecting bolt 9 inside. Each of the multiple connecting bolts 9 is threadedly connected to a second fixing plate 10 on the outside. Each of the multiple second fixing plates 10 is fixedly connected to two sealing plates 12.

[0039] For example, the first fixing plate 8 provides a fixed base for the connecting assembly. It is evenly distributed on the side wall of the snap-fit ​​plate 3 to ensure the stability of the connection. Each of the first fixing plates 8 is provided with a connecting bolt 9. The connecting bolt 9 is the core component of the connecting assembly. By rotating the connecting bolt 9, the connection and fixation between the first fixing plate 8 and the second fixing plate 10 can be realized. The outer side of the connecting bolt 9 is threaded with the second fixing plate 10. The second fixing plate 10 corresponds to the first fixing plate 8. The two are tightly connected together by the threaded connection of the connecting bolt 9. Each of the second fixing plates 10 is fixedly connected to the two sealing plates 12. In this way, the snap-fit ​​plate 3 and the sealing plate 12 are firmly connected together by the connecting assembly to form a stable overall structure. This connection method has the advantages of convenient installation and firm connection. It can meet the usage requirements of the module in various working environments and ensure that the components of the module will not loosen or separate due to vibration or external force.

[0040] Working principle: Multiple battery cells 1 are neatly arranged on the working platform in a specific arrangement. Two side plates 2 are placed on the outside of the arranged battery cells 1, so that the side plates 2 make initial contact with the battery cells 1. The side plates 2 play the role of supporting and fixing the battery cells 1. Two snap-fit ​​plates 3 are installed into the two side plates 2 by sliding connection. Two fireproof plates 4 made of materials with good fire resistance are fixedly connected to the inside of the two snap-fit ​​plates 3. The position of the fireproof plates 4 is adjusted so that they are in contact with the multiple battery cells 1.

[0041] Two separators 11 are placed at the ends of multiple battery cells 1, so that the separators 11 are in contact with the ends of the battery cells 1. The separators 11 serve to separate and position the ends of the battery cells, further enhancing the neatness of the battery cell arrangement. Two sealing plates 12 are placed on the side walls of the two separators 11, so that the sealing plates 12 are in contact with the separators 11. At the same time, it is ensured that the two side plates 2 and the snap-fit ​​plate 3 are in contact with the separators 11 and the sealing plates 12, forming a closed and stable overall structure. The sealing plates 12 can effectively prevent external dust and moisture from entering, protecting the normal working environment of the battery cells.

[0042] Multiple first fixing plates 8 are symmetrically distributed on the side wall of the snap-fit ​​plate 3 to ensure that the first fixing plates 8 are evenly distributed and to ensure the stability of the connection. Multiple connecting bolts 9 are placed inside the multiple first fixing plates 8. The connecting bolts 9 are the core components of the connection assembly. By rotating the connecting bolts 9, the connection and fixation between the first fixing plate 8 and the second fixing plate 10 can be realized.

[0043] Two symmetrically distributed electrode posts 13 are fixedly connected inside one of the sealing plates 12. The electrode posts 13 are key components for connecting the module to the external circuit and are responsible for the input and output of electrical energy. A heat-conducting plate 14 made of thermally conductive silicone is placed on the side wall of one of the sealing plates 12, so that the heat-conducting plate 14 is in contact with the sealing plate 12. At the same time, the heat-conducting plate 14 is in contact with both side plates 2. The heat-conducting plate 14 can quickly conduct the heat generated by the electrode posts 13 away and dissipate heat through the side plates 2, thereby expanding the heat dissipation area. The two electrode posts 13 are slidably connected through two symmetrically distributed through holes 15 opened inside the heat-conducting plate 14 to ensure that the electrode posts 13 and the heat-conducting plate 14 are easy to assemble and to ensure good thermal conduction contact. The silicone heat-conducting plate 14 can fill gaps, reduce contact thermal resistance, and also has insulation and shock absorption functions. By tightening the fixing bolts 17, the heat-conducting plate 14 is firmly fixed to the corner frame 16 to prevent it from loosening during the operation of the module and to ensure the stability of the heat dissipation effect.

[0044] During module operation, the battery cell 1 also generates heat. At this time, external coolant enters the water tank 5 through the inlet pipe 6 and circulates in the water tank 5, absorbing the heat generated by the battery cell 1. The coolant that has absorbed the heat is discharged from the module through the outlet pipe 7. New coolant continuously enters the water tank 5 through the inlet pipe 6, forming a continuous cooling cycle. This more evenly removes the heat generated by the battery cell, improves the heat dissipation efficiency of the module, ensures that the battery cell operates within a suitable temperature range, extends the service life of the battery cell, and improves the overall performance and reliability of the module.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sided cooling soft-pack large module, characterized in that, include: A plurality of uniformly distributed battery cells (1) are provided with two symmetrically distributed side plates (2) on the outer side of the plurality of battery cells (1). Two symmetrically distributed snap-fit ​​plates (3) are slidably connected inside the two side plates (2). The two snap-fit ​​plates (3) are in contact with the battery cells (1). The ends of the plurality of battery cells (1) are in contact with two symmetrically distributed partitions (11). The side walls of the two partitions (11) are in contact with symmetrically distributed sealing plates (12). The side walls of the two sealing plates (12) are provided with a plurality of connecting components for connecting the snap-fit ​​plates (3). Two symmetrically distributed electrode posts (13) are fixedly connected inside one of the sealing plates (12), and a heat dissipation component for dissipating heat from the electrode posts (13) is provided on the side wall of one of the sealing plates (12).

2. The double-sided cooling soft-pack large module according to claim 1, characterized in that: The heat dissipation assembly includes a heat-conducting plate (14), a through hole (15), a corner frame (16), and fixing bolts (17); One of the sealing plates (12) has a heat-conducting plate (14) in contact with its side wall. The heat-conducting plate (14) is in contact with both side plates (2). The heat-conducting plate (14) has two symmetrically distributed through holes (15) inside. Both through holes (15) are slidably connected to two electrode posts (13). Both side plates (2) have two symmetrically distributed corner frames (16) fixedly connected to their side walls. Multiple corner frames (16) are slidably connected to the heat-conducting plate (14). Multiple corner frames (16) have fixing bolts (17) inside. Multiple fixing bolts (17) are threadedly connected to the heat-conducting plate (14).

3. The double-sided cooling soft-pack large module according to claim 2, characterized in that: Both side plates (2) and snap-fit ​​plate (3) are in contact with partition plate (11) and sealing plate (12).

4. A double-sided cooling soft-pack large module according to claim 3, characterized in that: Fireproof plates (4) are fixedly connected inside both of the two snap-fit ​​plates (3), and both of the fireproof plates (4) are in contact with multiple battery cells (1).

5. A double-sided cooling soft-pack large module according to claim 3, characterized in that: Both side plates (2) have water channels (5) inside.

6. A double-sided cooling soft-pack large module according to claim 5, characterized in that: Both water inlet ends of the two water inlets (5) are fixedly connected to water inlet pipes (6), and both water outlet ends of the two water inlets (5) are fixedly connected to water outlet pipes (7).

7. A double-sided cooling soft-pack large module according to claim 1, characterized in that: Each of the aforementioned connecting components includes a first fixing plate (8), a connecting bolt (9), and a second fixing plate (10); Among them, a plurality of first fixing plates (8) are fixedly connected to the side wall of the snap-fit ​​plate (3) in a symmetrical manner. Each of the plurality of first fixing plates (8) is provided with a connecting bolt (9) inside. Each of the plurality of connecting bolts (9) is threadedly connected to a second fixing plate (10) on the outside. Each of the plurality of second fixing plates (10) is fixedly connected to two sealing plates (12).

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