Battery cell isolation sleeve and battery module

Abstract

The utility model relates to the technical field of power batteries, in particular to a battery cell spacer sleeve and a battery module, which comprise a battery module main body, battery cells are uniformly arranged on the battery module main body at intervals, the outer side surfaces of the battery cells are coated with the battery cell spacer sleeve, a base is arranged at the bottom of the battery module main body, and the battery cell spacer sleeve is arranged on the base. The side surfaces of the upper end of the base are respectively connected with an outer side plate in a clamping manner, modular separation bottom plates are uniformly stacked above the base at intervals, battery cell clamping grooves clamped with the bottoms of battery cells are formed in the upper ends of the modular separation bottom plates, and separation plate clamping grooves are further formed in the outer rings of the upper ends of the modular separation bottom plates. According to the battery cell isolation sleeve and the battery module, the modular separation bottom plate and the battery cell isolation sleeve are respectively arranged at the bottom and on the side surface of the battery cell, so that the heat dissipation effect of the battery cell can be prevented from being influenced, meanwhile, the battery cell separation plates are also arranged among the battery cells, and the buffer protection performance of the battery module is enhanced while the isolation protection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically to a cell separator and a battery module. Background Technology

[0002] A battery module is a combination of multiple battery cells (usually called battery cells) to form a power storage unit with a specific voltage and capacity. It is widely used in electric vehicles, portable electronic devices, energy storage systems, and other fields. The battery cell is the core component of the battery module, responsible for the actual storage and release of energy. Battery cell separators are installed between the cells to provide thermal isolation, electrical insulation, and mechanical protection, thereby improving battery safety, performance, and lifespan.

[0003] Existing cell separators are usually made of high-temperature resistant and flame-retardant materials, such as certain special plastics or ceramic fibers. However, when battery modules use cell separators to protect the cells, the separators are usually wrapped around the outside of the cell except for the top. This can affect the heat dissipation of the cell, increase the workload of the cooling mechanism, and thus affect the use of the battery module. Utility Model Content

[0004] The purpose of this utility model is to provide a cell isolation sleeve and a battery module to solve the problem mentioned in the background art that when battery modules on the market use cell isolation sleeves to protect the cells, the cell isolation sleeves are usually wrapped around the outside of the cells except for the top, which affects the heat dissipation of the cells, increases the workload of the cooling mechanism, and thus affects the use of the battery module.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cell separator sleeve and a battery module, comprising a battery module body, on which cells are evenly spaced, and the outer sides of the cells are covered with cell separator sleeves. The bottom of the battery module body is provided with a base, and outer side plates are respectively engaged and connected to the upper side of the base. Modular partition plates are evenly spaced on the top of the base, and the upper end of the modular partition plate is provided with a cell slot that engages with the bottom of the cell. Furthermore, the upper outer ring of the modular partition plate is also provided with a partition plate slot. A second cell partition plate is engaged in the partition plate slots at adjacent locations of the modular partition plate, and a first cell partition plate is engaged in the partition plate slot between the modular partition plate and the outer side plate.

[0006] Preferably, the outer side plate is externally snapped and riveted to the connection point of the outer side plate, and the upper end plate is screwed to the upper end plate. The lower end face of the upper end plate is in contact with the battery cell, the first battery cell separator plate and the second battery cell separator plate respectively.

[0007] Preferably, the first cell separator and the second cell separator have the same structure, and both the first cell separator and the second cell separator have a corrugated structure.

[0008] Preferably, the first cell separator and the second cell separator are respectively provided with soft separators inside, and the soft separators are respectively provided with a first hard separator and a second hard separator on both sides.

[0009] Preferably, the first rigid isolation plate and the second rigid isolation plate are made of the same material, and the first rigid isolation plate and the second rigid isolation plate respectively abut against the cell isolation sleeve and the outer plate.

[0010] Preferably, the modular partition base plate is fastened between the outer side plates, and the bottom of the modular partition base plate has symmetrically opened grooves, and the upper end of the base is integrally provided with a protrusion that is movably engaged with the bottom groove of the modular partition base plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The cell separator and battery module have modular partition plates and cell separators respectively set at the bottom and sides of the cell, which can avoid affecting the heat dissipation of the cell. Simultaneously, cell separators are also set between the cells, improving the isolation and protection effect while enhancing the buffer protection performance of the battery module. The modular partition plate of the cell separator and battery module is made of porous insulating material, ensuring the heat dissipation effect of the cell when the modular partition plate supports and positions the cell at the bottom. The cell separators are supported by a rigid partition plate clamping a soft partition plate, and the cell separators are designed with a corrugated structure to ensure buffering and isolation performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a cell isolation sleeve and battery module structure according to the present invention;

[0013] Figure 2 This utility model relates to a cell separator sleeve and a battery module. Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This is a side view of a cell separator and battery module according to the present invention.

[0015] Figure 4 This is a schematic diagram showing the relative position of the modular partition base plate of the battery cell isolation sleeve and battery module to the base according to this utility model.

[0016] Figure 5 This is a schematic diagram of a modular partition base plate structure for a cell isolation sleeve and a battery module according to the present invention.

[0017] In the diagram: 1. Battery module body; 2. Outer side plate; 3. Battery cell; 4. Battery cell separator sleeve; 5. First battery cell separator plate; 6. Modular separator base plate; 7. Corner strip; 8. Second battery cell separator plate; 9. First rigid separator plate; 10. Second rigid separator plate; 11. Flexible separator plate; 12. Base; 13. Top plate; 14. Battery cell slot; 15. Separator plate slot. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5This utility model provides a technical solution: a cell separator sleeve and a battery module, including a battery module body 1, on which cells 3 are evenly spaced, and the outer sides of the cells 3 are covered with cell separator sleeves 4. A base 12 is provided at the bottom of the battery module body 1, and outer side plates 2 are respectively engaged and connected to the upper side of the base 12. Modular partition plates 6 are evenly spaced above the base 12, and the upper end of the modular partition plate 6 has a cell slot 14 that engages with the bottom of the cells 3. Furthermore, a partition plate slot 15 is also provided on the outer ring of the upper end of the modular partition plate 6. A second cell partition plate 8 is engaged in the partition plate slot 15 at adjacent locations of the modular partition plate 6, and a partition plate 8 is engaged in the partition plate slot 15 between the modular partition plate 6 and the outer side plate 2. The first cell separator 5 and the outer side plate 2 are externally snapped and riveted together with corner strips 7. The upper end plate 13 is screwed to the upper end of the outer side plate 2, and the lower end face of the upper end plate 13 contacts and engages with the cell 3, the first cell separator 5, and the second cell separator 8 respectively. This structure, through the corner strips 7, secures the connection of the outer side plates 2, ensuring a tight connection between them and thus stabilizing the positioning structure of the battery module body 1. The upper end plate 13, the outer side plate 2, and the base 12 together form a frame structure for positioning the cell 3, ensuring reliable positioning of the cell 3, the first cell separator 5, and the second cell separator 8. The first cell separator 5 and the second cell separator 8 have identical structures. Both are corrugated structures. This structure, through the corrugated structure of the first cell separator 5 and the second cell separator 8, can play a certain buffering role and allow a certain degree of deformation, effectively preventing damage to the first cell separator 5 and the second cell separator 8, and ensuring the isolation effect of the cell 3. The first cell separator 5 and the second cell separator 8 are respectively provided with soft isolation plates 11, and the soft isolation plates 11 are respectively provided with first hard isolation plates 9 and second hard isolation plates 10 on both sides. This structure, through the cooperation of the soft isolation plates 11, the first hard isolation plates 9 and the second hard isolation plates 10, makes the first hard isolation plates 9 and the second hard isolation plates 10 have a reliable supporting isolation structure, while the soft isolation plates 11 play a certain buffering role, and cooperate with the corrugated structure. The structure enhances support reliability and buffer protection. The first rigid isolation plate 9 and the second rigid isolation plate 10 are made of the same material and are in close contact with the cell isolation sleeve 4 and the outer side plate 2, respectively. This structure ensures that the first cell separator plate 5 and the second cell separator plate 8 reliably support the cell 3. In addition to being isolated by the cell isolation sleeve 4 and the modular separator base plate 6 at the bottom, the cell 3 is further isolated by the first cell separator plate 5 and the second cell separator plate 8. This not only effectively improves the safety of the battery module body 1 but also better manages the operating temperature of the cell 3 and extends its service life. The modular separator base plate 6 is securely fastened between the outer side plates 2.Furthermore, the modular partition base plate 6 has symmetrically opening grooves at its bottom, and the upper end of the base 12 is integrally provided with a protrusion that movably engages with the grooves at the bottom of the modular partition base plate 6. This structure allows the modular partition base plate 6 to be used one-to-one with the battery cell 3. The modular partition base plate 6 can provide bottom support and positioning for the battery cell 3, and the fixed positions of the modular partition base plate 6, the first battery cell partition plate 5, and the second battery cell partition plate 8 can be flexibly adjusted according to the composition of the battery cell 3. By processing the modular partition base plate 6 with porous insulating material, the heat dissipation area of ​​the battery cell 3 can be increased, avoiding the problem of the battery cell 3 being affected by the battery cell isolation sleeve 4 completely covering it.

[0020] Working principle: When using this cell separator sleeve and battery module, firstly, the modular separator base plate 6 is placed on the base 12, and then the outer side plate 2 is fixed to the base 12 by riveting to achieve the fastening of the modular separator base plate 6. The outer side plate 2 is then connected and stabilized by the corner strips 7. Then, the cell 3 is placed on the modular separator base plate 6 through the cell slot 14. The cell 3 is isolated and protected as an independent unit by the cell separator sleeve 4. The second cell separator plate 8 is secured between the cells 3 through the separator plate slot 15 to enhance the isolation and protection effect of the cells 3 and separate the first cell separator. Plate 5 is positioned between cell 3 and outer plate 2. The first cell separator plate 5 and the second cell separator plate 8 ensure isolation and protection through the first rigid separator plate 9 and the second rigid separator plate 10, while the soft separator plate 11 enhances the buffer protection performance. At the same time, the corrugated structure of the first cell separator plate 5 and the second cell separator plate 8 also has a certain buffer protection. Finally, the upper plate 13 is fixed to the upper end of the outer plate 2, thereby securing cell 3, first cell separator plate 5 and second cell separator plate 8, and completing the assembly of the battery module body 1, thus completing a series of tasks.

[0021] 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 cell separator and a battery module, comprising a battery module body (1), characterized in that: The battery module body (1) is provided with battery cells (3) evenly spaced, and the battery cells (3) are covered with battery cell isolation sleeves (4). The bottom of the battery module body (1) is provided with a base (12), and the upper side of the base (12) is respectively connected to an outer plate (2). The base (12) is provided with modular partition plates (6) evenly spaced on the top of the base (12), and the upper end of the modular partition plate (6) is provided with a battery cell slot (14) that engages with the bottom of the battery cell (3). The upper outer ring of the modular partition plate (6) is also provided with a partition plate slot (15). The partition plate slots (15) adjacent to the modular partition plate (6) are jointly engaged with a second battery cell partition plate (8), and the partition plate slot (15) between the modular partition plate (6) and the outer plate (2) is engaged with a first battery cell partition plate (5).

2. The cell separator and battery module according to claim 1, characterized in that: The outer side plate (2) is externally clipped and riveted to be fixed with a corner strip (7), and the upper end plate (13) is fixed with screws on the upper end of the outer side plate (2), and the lower end face of the upper end plate (13) is in contact with the battery cell (3), the first battery cell separator (5) and the second battery cell separator (8) respectively.

3. The cell separator and battery module according to claim 1, characterized in that: The first cell separator (5) and the second cell separator (8) have the same structure, and both the first cell separator (5) and the second cell separator (8) have a corrugated structure.

4. The cell separator and battery module according to claim 1, characterized in that: The first cell separator (5) and the second cell separator (8) are respectively provided with soft separators (11), and the soft separators (11) are respectively provided with a first hard separator (9) and a second hard separator (10) on both sides.

5. The cell separator and battery module according to claim 4, characterized in that: The first rigid isolation plate (9) and the second rigid isolation plate (10) are made of the same material, and the first rigid isolation plate (9) and the second rigid isolation plate (10) respectively abut against the cell isolation sleeve (4) and the outer plate (2).

6. The cell separator and battery module according to claim 1, characterized in that: The modular partition base plate (6) is fastened between the outer side plates (2), and the bottom of the modular partition base plate (6) has symmetrically opened grooves. The upper end of the base (12) is integrally provided with a protrusion that is movably engaged with the bottom groove of the modular partition base plate (6).

Images