Battery module

Abstract

The utility model relates to battery technology field, concretely provides a kind of battery module;To solve the problem that the recessed area of the upper cover of existing battery module is contacted and rubbed with other components in vibration process, there is hidden danger of safety;The battery module of the utility model includes shell, multiple battery modules, support and upper cover;Multiple battery modules are arranged in shell with interval;Support is arranged between adjacent two battery modules;Upper cover is buckled in the upper of shell, and support is used to support upper cover;Make the area that upper cover does not occur recess, avoid collision contact and rub with other components of battery module in vibration process, avoid unnecessary hidden danger of safety.In addition, buffer is arranged between the top of upper cover and support, and the material of buffer is buffer foam, silica gel or rubber;Buffer can make buffer contact between upper cover and support, so that upper cover has certain deformation when being collided or extruded, so that upper cover is not easily damaged.

Description

Technical Field

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

[0002] With the development of the energy industry, the application scope of lithium batteries is becoming more and more extensive. They are widely used in vehicles and other fields that require energy storage, such as batteries used in solar cell systems, so that the electricity generated by solar cells can be stored when it is not currently available, so that users can have electricity when they need it.

[0003] Non-metallic materials are cheaper and easier to process than metallic materials. They also have better toughness. Therefore, non-metallic materials are currently used for the outer casing of battery modules, especially for the top cover. However, because non-metallic materials are structurally weaker than metallic materials, a dent occurs in the middle area when the external dimensions of the battery module increase. Battery modules vibrate during use, especially those used in vehicles. During vibration, the top cover is prone to collisions with other components, particularly friction with electrical transmission parts such as cables, posing a certain safety hazard.

[0004] Therefore, there is an urgent need for a battery module to solve the above-mentioned technical problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the safety hazard caused by the recessed area of ​​the top cover of the existing battery module coming into contact with and rubbing against other components during vibration.

[0006] In a first aspect, the present invention provides a battery module, the battery module comprising:

[0007] shell;

[0008] Multiple battery modules are spaced apart within the housing;

[0009] A support member is provided between two adjacent battery modules;

[0010] The top cover is fastened to the top of the outer casing, and the support member is used to support the top cover.

[0011] In a specific embodiment of the battery module described above, a plurality of support members are provided at intervals between two adjacent battery modules.

[0012] In a specific embodiment of the battery module described above, the plurality of support members include at least three support members, wherein the width of the support members located at both ends is smaller than the width of the support member located in the middle.

[0013] In a specific embodiment of the battery module described above, a buffer is provided between the top cover and the support member.

[0014] In the specific implementation of the above battery module, the buffer is made of cushioning foam, silicone, or rubber.

[0015] In a specific embodiment of the battery module described above, the support member has connecting portions extending outward on both sides, and the connecting portions are connected to the battery module.

[0016] In a specific embodiment of the battery module described above, the support member has connecting portions extending outward on both sides, and the connecting portions are connected to the bottom of the outer casing.

[0017] In a specific embodiment of the battery module described above, the support member includes at least two spaced-apart support portions, and the area between the two support portions is used for wiring.

[0018] In the specific embodiment of the above battery module, the bottoms of the two support parts are connected by an intermediate connecting plate, and the two support parts and the intermediate connecting plate form a wiring groove, in which cables for connecting multiple battery modules are laid; a fixing part is provided on the connecting plate or the support part, and the cable is fixed on the fixing part.

[0019] In the specific embodiment of the battery module described above, the width of the connecting portion is greater than the width of the supporting portion.

[0020] With the above technical solution adopted, the battery module of this utility model includes a shell, multiple battery modules, a support member and a top cover; the multiple battery modules are arranged at intervals inside the shell; a support member is provided between two adjacent battery modules; the top cover is fastened to the top of the shell, and the support member is used to support the top cover; so that the top cover will not have a dented area, avoiding collision, contact and friction with other components of the battery module during vibration, and avoiding unnecessary safety hazards.

[0021] A buffer is provided between the top of the cover and the top of the support. The buffer is made of cushioning foam, silicone or rubber. The buffer can buffer the contact between the cover and the support, so that the cover can deform a certain amount when it is hit or squeezed, making the cover less likely to be damaged.

[0022] The support member has connecting portions extending outwards on both sides, which connect to the bottom of the battery module or housing. These connecting portions provide mounting points for the support member, facilitating installation and fixation. The width of the connecting portions is greater than the width of the support members; this allows for a larger gap between the two support members, providing clearance and enabling the battery module's related structures to be arranged on the sides of the support member.

[0023] The support component includes at least two spaced-apart support sections. The bottoms of the two support sections are connected by an intermediate connecting plate. The two support sections and the intermediate connecting plate together form a cable routing channel, in which cables are laid. A fixing part is provided on the connecting plate or support section, and the cables are fixed to the fixing part. The support component provides a cable routing channel and can fix the cables, allowing for proper cable routing and ensuring the normal operation of the battery module. Attached Figure Description

[0024] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of the battery module provided by this utility model. Figure 1 ;

[0026] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0027] Figure 3 This is a top view of the intermediate support member provided by this utility model;

[0028] Figure 4 This is a top view of the end support member provided by this utility model;

[0029] Figure 5 This is a side view of the support member provided by this utility model.

[0030] List of reference numerals in the attached drawings: 1. Outer shell; 2. Top cover; 3. Battery module; 4. Support component; 41. Support part; 42. Connecting plate; 421. Fixing part; 43. Top plate; 44. Support plate; 45. Connecting part; 451. Fixing hole; 46. Clearance area; 5. Buffer component. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Current battery modules use non-metallic materials for their outer casing, especially for the top cover. However, because non-metallic materials are structurally weaker than metallic materials, a dent occurs in the central area when the overall size of the battery module increases. Battery modules vibrate during use, especially those used in vehicles. During vibration, the top cover is prone to colliding with other components, particularly when it comes into contact with and rubs against electrical transmission parts such as cables, posing a potential safety hazard.

[0035] To solve the above technical problems, such as Figure 1-5 As shown, this embodiment discloses a battery module, which includes a housing 1, a battery module 3, a top cover 2, and a support member 4.

[0036] The battery module 3 includes multiple battery cells arranged side by side, which are fixed together by adhesive bonding, with spacers between adjacent cells. The number of cells is determined according to the size of the battery module 3. The spacers are made of fire-resistant material to ensure that adjacent cells are not affected or are minimally affected in the event of a fire. Regarding the fixing method between the cells, it should be noted that although adhesive bonding is used in this embodiment, this is not a limitation of the invention. In other embodiments, without departing from the principle of the invention, a frame is fitted over the outer side of the multiple cells to secure them, forming the battery module 3. These methods do not deviate from the basic principle of the invention and will fall within the protection scope of the invention.

[0037] In this embodiment, there are multiple battery modules 3, which are spaced apart and arranged within the outer casing 1. The end of the battery cell is the side of the battery module 3, and the adjacent surface of two adjacent battery modules 3 is the end face of the battery cell. In this embodiment, there are multiple battery modules 3. It should be noted that although there are multiple battery modules 3 in this embodiment, this is not a limitation of the present invention. Without departing from the principle of the present invention, in other embodiments, those skilled in the art can select two, three, four, or more battery modules 3 according to the size of the battery module, specifically selecting the number of battery modules 3 based on the size of the battery module and the size of the battery modules 3. All of these will not deviate from the basic principle of the present invention and will fall within the protection scope of the present invention.

[0038] The top cover 2 is snapped onto the top of the outer casing 1 and fixed to the outer casing 1, serving to cover and protect the battery module 3. The top cover 2 is made of non-metallic material, specifically an inorganic composite material. The top cover 2 is initially fixed to the outer casing 1 by snap-fit, and then further secured with screws to ensure that the top cover 2 is firmly fixed to the outer casing 1.

[0039] Regarding the fixing method of the top cover 2, it should be noted that although this embodiment uses snap-fit ​​and screws for fixing, this is not a limitation of the present invention. Without departing from the principle of the present invention, in other embodiments, those skilled in the art can choose to initially fix the top cover 2 by adhesive bonding, and then use screws for secondary fixing. These methods do not deviate from the basic principle of the present invention and will fall within the protection scope of the present invention.

[0040] A support member 4 is provided between two adjacent battery modules 3 to support the top cover 2. Multiple support members 4 are spaced apart between two adjacent battery modules 3. The number of support members 4 is determined based on the length of the battery module 3 and the width of the support member 4. In this embodiment, there are three support members 4 between two adjacent battery modules 3, one located in the middle area of ​​the battery module 3, and the other two located at both ends of the battery module 3.

[0041] Regarding the number of support members 4, it should be noted that although there are three support members 4 between two adjacent battery modules 3 in this embodiment, this is not a limitation of the present invention. Without departing from the principle of the present invention, in other embodiments, the number of support members 4 can be set to two, four, or more, as long as it can provide stable support for the top cover 2. Furthermore, a support member 4 can be provided at the corresponding position of each cell in the battery module 3; these arrangements do not deviate from the basic principle of the present invention and will fall within the protection scope of the present invention.

[0042] Among the multiple support members 4, the width of the support members 4 located at both ends is smaller than the width of the support member 4 located in the middle. Since the two ends of the battery module 3 are the outer shell 1 and the edge of the top cover 2 has support points, there is no need for a wider support member 4; this can save costs.

[0043] The support member 4 includes at least two spaced-apart support portions 41, and the area between the two support portions 41 is used for wiring. Specifically, the two support portions 41 are vertically arranged, and the bottom ends of the two support portions 41 are connected by an intermediate connecting plate 42. The two support portions 41 and the intermediate connecting plate 42 form a wiring groove, and the cable is laid in the wiring groove. The cable is connected to the battery module 3, specifically to the CCS terminal of the battery module 3, for transmitting electrical energy.

[0044] A fixing part 421 is provided on the connecting plate 42, and the cable is fixed to the fixing part 421. Specifically, a fixing hole is provided on the connecting plate 42, a fixing clamp is fixed to the fixing hole, and the cable is fixed to the fixing clamp. Regarding the specific fixing method of the cable, it should be noted that although it is fixed to the connecting plate 42 by a fixing clamp in this embodiment, this is not a limitation of this utility model. In other embodiments, it can also be fixed to the connecting plate 42 by a snap-fit, which does not deviate from the basic principle of this utility model and will fall within the protection scope of this utility model.

[0045] Regarding the location of the fixing part 421, it should be noted that although in this embodiment the fixing part 421 is disposed on the connecting plate 42, this is not a limitation of the present invention. Without departing from the principle of the present invention, in other embodiments, those skilled in the art may also choose to dispose of the fixing part 421 on one of the support parts 41 or on both support parts 41 to fix the cable to the support parts 41. These arrangements will not deviate from the basic principle of the present invention and will fall within the protection scope of the present invention.

[0046] The support member 4 has connecting portions 45 extending outward from both sides, which are connected to the battery module 3. The support member 4 also includes a top plate 43 extending outward from the support portion 41, with a support plate 44 extending downward from the outer end of the top plate. The bottom end of the support plate 44 extends outward to form a connecting portion 45, which is specifically plate-shaped. A fixing hole 451 is provided on the connecting plate 42, and the connecting plate 42 is fixed to the connection position of the battery module 3 by screws or rivets, so that the support member 4 can be fixed to the battery module 3, thereby enabling the battery module 3 to support the support member 4, and ensuring that all the force of the top cover 2 is applied to the battery module 3.

[0047] Regarding the fixing position of the support member 4, it should be noted that although it is fixed to the battery module 3 in this embodiment, this is not a limitation of the present invention. In other embodiments, the connecting part 45 is connected to the bottom of the outer shell 1; specifically, it is fixed to the bottom of the outer shell 1 by bolts or welding. These do not deviate from the basic principle of the present invention and will fall within the protection scope of the present invention.

[0048] The width of the connecting part 45 is greater than the width of the supporting part 41, and the spans of the supporting part 41, the supporting plate 44, the top plate 43 and the connecting plate 42 are the same; this allows for a larger gap between the two supporting members 4, providing a clearance area 46, which allows the relevant structures of the battery module to be arranged on the side of the supporting member 4.

[0049] Because the width of the middle support member 4 is greater than the width of the end support members 4, and the width of the end support members 4 is narrower; a fixing hole 451 is provided on the connecting part 45 of the end support member 4; the width of the middle support member 4 is wider, and two or more fixing holes 451 are provided at intervals on the connecting part 45 of the middle support member 4. This ensures that the support member 4 is firmly fixed to the battery module 3.

[0050] A buffer 5 is provided between the top of the upper cover 2 and the top of the support 4. The buffer 5 is made of cushioning foam, silicone, or rubber. The buffer 5 serves to cushion the downward deformation of the upper cover 2 and prevent it from being damaged when under pressure.

[0051] The buffer element 5 is mounted on the top plate 43 of the support element 4 and is specifically bonded to the top plate 43. The thickness of the buffer foam is calculated based on the gap between the top of the support element 4 and the upper cover 2, and the reaction force of the upper cover 2 after it is fixed. Specifically, H is defined as the gap between the top of the support element 4 and the inner side of the upper cover 2, F is the reaction force that the upper cover 2 can directly exert on the support element 4 after it is fixed, and T is the selected thickness of the foam. When selecting a buffer foam model with a compression force of 300N and a corresponding compression rate of 50%, it can be calculated that when H = 2mm and F = 300N, a 4mm thick buffer foam is required.

[0052] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A battery module, characterized in that, The battery module includes: Outer shell (1); Multiple battery modules (3) are spaced apart inside the housing (1); Support member (4), the support member (4) is provided between two adjacent battery modules (3); The top cover (2) is fastened to the top of the outer shell (1), and the support (4) is used to support the top cover (2).

2. The battery module according to claim 1, characterized in that, Multiple support members (4) are provided at intervals between two adjacent battery modules (3).

3. The battery module according to claim 2, characterized in that, The plurality of the support members (4) includes at least three of the support members (4), wherein the width of the support members (4) located at both ends is smaller than the width of the support member (4) located in the middle.

4. The battery module according to claim 1, characterized in that, A buffer (5) is provided between the top cover (2) and the support member (4).

5. The battery module according to claim 4, characterized in that, The material of the buffer (5) is buffer foam, silicone or rubber.

6. The battery module according to claim 1, characterized in that, The support member (4) has connecting parts (45) extending outward on both sides, and the connecting parts (45) are connected to the battery module (3).

7. The battery module according to claim 1, characterized in that, The support member (4) has connecting parts (45) extending outward on both sides, and the connecting parts (45) are connected to the bottom of the outer shell (1).

8. The battery module according to claim 6 or 7, characterized in that, The support member (4) includes at least two spaced-apart support portions (41), and the area between the two support portions (41) is used for wiring.

9. The battery module according to claim 8, characterized in that, The bottoms of the two support parts (41) are connected by an intermediate connecting plate (42). The two support parts (41) and the intermediate connecting plate (42) enclose a wiring groove, and the cables for connecting multiple battery modules (3) are laid in the wiring groove. A fixing part (421) is provided on the connecting plate (42) or the support part (41), and the cable is fixed on the fixing part (421).

10. The battery module according to claim 9, characterized in that, The width of the connecting part (45) is greater than the width of the supporting part (41).

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