Battery module

Abstract

The utility model belongs to the technical field of battery energy storage, and discloses a battery module. The battery module comprises a power supply assembly, a supporting assembly and a connecting rod, the power supply assembly comprises at least two layers of battery packs, and fixing holes are formed in the battery packs. The supporting assembly comprises a first supporting plate and a first supporting pipe, the first supporting plate is arranged between the two adjacent layers of battery packs, a first communicating hole is formed in the first supporting plate, one end of the first supporting pipe abuts against the battery pack located on the lower layer and is right opposite to the fixing hole, and the other end of the first supporting pipe abuts against the first supporting plate and is right opposite to the first communicating hole; the connecting rod penetrates through the opposite fixing holes, the first communicating hole and the first supporting pipe, locking pieces are arranged at the two ends of the connecting rod, and the power source assembly is located between the locking pieces at the two ends. According to the battery module, the plurality of battery packs are fixedly mounted in a relatively small space through the connecting rods, so that the integration level and the mounting efficiency of the battery packs are improved, and the problem of small wiring harness connection operation space between the battery packs is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery energy storage technology, and in particular to a battery module. Background Technology

[0002] Existing energy storage battery modules are generally installed by placing individual modules flat on the bottom plate of the battery pack and then fixing them with bolts. This installation method requires high dimensional accuracy of the mounting surface, and each module needs to have its own mounting points designed on its bottom. Because the battery pack housing is relatively large, this method is cumbersome and inconvenient for subsequent disassembly and maintenance; the corresponding battery management system also needs to be reinstalled and fixed, which is not conducive to electromagnetic radiation testing. Furthermore, the limited space for connecting wiring harnesses between modules makes internal wiring difficult to inspect and repair, and poses assembly risks. Utility Model Content

[0003] The purpose of this utility model is to provide a battery module to solve the problems of inconvenient integration and assembly of battery packs, as well as the small operating space for wiring harness connection.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A battery module, comprising:

[0006] A power assembly, comprising at least two battery packs, wherein the battery packs are provided with mounting holes;

[0007] The support assembly includes a first support plate and a first support tube. The first support plate is disposed between two adjacent battery packs and has a first connecting hole. One end of the first support tube abuts against the battery pack located on the lower layer and is directly opposite the fixing hole, while the other end abuts against the first support plate and is directly opposite the first connecting hole.

[0008] A connecting rod passes through the opposing fixing hole, the first communicating hole, and the first support tube. Locking elements are provided at both ends of the connecting rod, and the power supply assembly is located between the locking elements at both ends. Preferably,

[0009] The support assembly further includes a second support plate and a second support tube, the second support tube being provided with a second connecting hole, and the second support plate being disposed on the top surface of the top battery pack;

[0010] One end of the second support tube abuts against the battery pack at the top and is aligned with the fixing hole, while the other end abuts against the second support plate and is aligned with the second connecting hole.

[0011] Preferably, the battery module further includes a battery management module, which is fixed to the second support plate and is used to control the use of the battery module.

[0012] Preferably, the battery module further includes a copper busbar assembly, which includes a first copper busbar and a second copper busbar. The first copper busbar includes a first suspension part and a second suspension part. The first suspension part and the second suspension part are respectively fixed to the top of two adjacent battery packs to connect the two adjacent battery packs in series.

[0013] The second copper busbar includes a third suspension part and a fourth suspension part. The third suspension part is fixed to the top surface of the battery pack, and the fourth suspension part is fixed to the top surface of the battery management module, so that the battery pack is electrically connected to the battery management module.

[0014] Preferably, the battery module further includes a metal shielding component, which includes a shielding plate and a support component disposed at the bottom of the shielding plate, the support component being connected to the second support plate.

[0015] Preferably, the height of the support member is greater than the height of the battery management module, and the shielding plate is located above the battery management module.

[0016] Preferably, the battery pack has at least two fixing holes spaced apart along its circumferential edge, and each fixing hole is provided with a corresponding connecting rod.

[0017] Preferably, the support assembly further includes a third support plate, which has a third connecting hole that corresponds to the fixing hole. The third support plate is located at the bottom of the battery pack at the bottom end, and the connecting rod passes through the third connecting hole.

[0018] Preferably, the opposite sides of the third support plate are bent downward to form bent portions, and the bent portions on the opposite sides and the bottom surface of the third support plate form a receiving cavity, which is used to accommodate the locking member.

[0019] Preferably, the third support plate is further provided with fasteners for fixing the third support plate to an external device.

[0020] Beneficial effects:

[0021] The battery module includes a power supply assembly, a support assembly, and connecting rods. The power supply assembly comprises at least two layers of battery packs, stacked to increase battery density. The support assembly includes a first support column and a first support plate. The first support plate is positioned between adjacent battery pack layers, providing insulation, while the first support column supports the first support plate and the upper battery pack, providing sufficient operating space for wiring harness connections. Finally, connecting rods connect the battery packs to the first support plate and the first support column, facilitating battery integration, installation, and use. Attached Figure Description

[0022] Figure 1 This is a front view of the battery module provided by this utility model;

[0023] Figure 2 This is a left view of the battery module provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the battery module provided by this utility model;

[0025] Figure 4 This is a top view of the top structure of the battery module provided by this utility model;

[0026] Figure 5 This is a structural schematic diagram of the battery control unit and metal shielding plate provided by this utility model;

[0027] Figure 6 This is a bottom view of the top structure of the battery module provided by this utility model.

[0028] In the picture:

[0029] 1. Power supply assembly; 11. Battery pack; 111. Mounting hole; 112. Supporting component; 1121. First positioning hole;

[0030] 2. Support assembly; 21. First support plate; 22. First support tube; 23. Second support plate; 24. Second support tube; 25. Third support plate; 251. Bending section; 252. Fastener;

[0031] 3. Connecting rod;

[0032] 4. Locking components;

[0033] 5. Battery management module;

[0034] 6. Metal shielding components; 61. Supporting components; 62. Shielding plates;

[0035] 7. Copper busbar assembly; 71. First copper busbar component; 72. Second copper busbar component; 711. First suspension part; 712. Second suspension part; 721. Third suspension part; 722. Fourth suspension part. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figure 1 , Figure 2 and Figure 3As shown, the battery module includes a power supply assembly 1, a support assembly 2, and a connecting rod 3. Specifically, the power supply assembly 1 includes at least two battery packs 11, and the battery packs 11 are provided with... Figure 4 The fixing hole 111 is shown. The support assembly 2 includes a first support plate 21 and a first support tube 22. The first support plate 21 is disposed between two adjacent battery packs 11. The first support plate 21 is provided with a first connecting hole. One end of the first support tube 22 abuts against the lower battery pack 11 and is directly opposite to the fixing hole 111. The other end abuts against the first support plate 21 and is directly opposite to the first connecting hole. The first support plate 21 supports the upper battery pack 11. The first support tube 22 supports the first support plate 21 and the upper battery pack 11, so that the upper and lower battery packs 11 are separated. This not only insulates the two adjacent battery packs 11, but also provides sufficient operating space for the wiring harness connection between the two adjacent battery packs 11, which is convenient for operation and use. The connecting rod 3 passes through the opposite fixing hole 111, the first connecting hole and the first support tube 22. Both ends of the connecting rod 3 are provided with locking parts 4. The power assembly 1 is located between the locking parts 4 at both ends. The multi-layer battery pack 11 is connected to the first support plate 21 and the first support tube 22 by the connecting rod 3, which helps to integrate the battery pack 11 and also facilitates installation.

[0042] It should be noted that the connecting rod 3 has threads at both ends, and the locking parts 4 at both ends are nuts. The nuts form a threaded connection with the connecting rod 3, thereby fixing the intermediate battery pack 11. Compared with other parts with a locking effect, nuts are more common, have a good locking effect, are extremely low in cost, and are easy to mass-produce. At the same time, the nuts form a detachable connection with the connecting rod 3, which facilitates the subsequent replacement and maintenance of the battery pack 11.

[0043] To better protect the battery pack 11 at the top from the outside, such as Figure 1 and Figure 3 As shown, the support assembly 2 also includes a second support plate 23 and a second support tube 24. The second support tube 24 is provided with a second connecting hole, and the second support plate 23 is disposed on the top surface of the top battery pack 11. In addition, one end of the second support tube 24 abuts against the battery pack 11 and is aligned with the fixing hole 111, and the other end abuts against the second support plate 23 and is aligned with the second connecting hole. The connecting rod 3 first passes through the second connecting hole and the second support tube 24, and then connects the battery pack 11 to the first connecting hole and the first support tube 22 in sequence downwards. By setting the second support plate 23, other equipment can be set on it. At the same time, the second support tube 24 supports the second support plate 23, which also provides operating space for wiring harness connection of the top battery pack 11, making it convenient to use.

[0044] To ensure the effective fixation of the connecting rod 3 to the power supply assembly 1 and the support assembly 2, such as Figure 2 , Figure 3 and Figure 4 As shown, the battery pack 11 has at least two fixing holes 111 spaced apart along its circumferential edge, and each fixing hole 111 is correspondingly provided with a connecting rod 3. Therefore, the first connecting hole, the second connecting hole, the first support tube 22, and the second support tube 24 are all provided corresponding to the fixing holes 111. This structure ensures the fixing effect of the connecting rod 3 on the power assembly 1.

[0045] In addition, to separate the bottom battery pack 11 from the outside, as shown in the figure. Figure 2 and Figure 3 As shown, the support assembly 2 also includes a third support plate 25, which is disposed at the bottom of the bottom battery pack 11. The third support plate 25 has a third connecting hole, which corresponds to the fixing hole 111. When one end of the connecting rod 3 passes through the third connecting hole on the third support plate 25, the third support plate 25 is fixed to the power assembly 1 by the locking member 4.

[0046] Considering that after the third support plate 25 is locked in place by the locking member 4, the locking member 4 protrudes from the third support plate 25, making it impossible to place the entire battery module. Therefore, as follows Figure 1 and Figure 3 As shown, the opposite sides of the third support plate 25 are bent downwards to form bent portions 251. The bent portions 251 on the opposite sides and the bottom surface of the third support plate 25 form a receiving cavity, through which the fastener 252 is accommodated. The bent portions 251 alone solve the problem of uneven bottom of the battery module, which is difficult to place, while ensuring that the third support plate 25 can be locked.

[0047] Considering that the bending section 251 alone cannot ensure that the battery module will not tip over during use, therefore, as Figure 3 As shown, the third support plate 25 is also provided with fasteners 252, which are used to fix the third support plate 25 to an external device. In this embodiment, the fasteners 252 are bolts, and the battery module is also provided with a housing. The bottom of the housing is provided with threaded holes, and the third support plate 25, along with the entire battery module, is fixed to the housing by bolts. Compared with other components, bolts are more common, inexpensive, and have a good fastening effect. Moreover, the threaded connection facilitates disassembly, which is beneficial for later maintenance and parts replacement.

[0048] In other embodiments, rivets, pins, etc. can also be used to fix the battery module inside the casing, as long as it can be ensured that the battery module will not shake during use. No other limitations are imposed in this embodiment.

[0049] In addition, such as Figure 3 and Figure 5As shown, the battery module also includes a battery management module 5, which is fixed on the second support plate 23 and used to control the use of the battery module. Since the battery management module 5 is located on the second support plate 23, and there is a second support tube 24 between the second support plate 23 and the top battery pack 11, there is sufficient space for connecting the wiring harness.

[0050] In addition, such as Figure 1 and Figure 3 As shown, to enable series connection between multiple battery packs 11 and between battery packs 11 and battery management module 5, the battery module also includes a copper busbar assembly 7. The copper busbar assembly 7 includes a first copper busbar 71 and a second copper busbar 72. The first copper busbar 71 includes a first suspension portion 711 and a second suspension portion 712. The first suspension portion 711 and the second suspension portion 712 are respectively fixed to the top of two adjacent battery packs 11, thereby connecting the two adjacent battery packs 11 in series. The second copper busbar 72 includes a third suspension portion 721 and a fourth suspension portion 722. The third suspension portion 721 is fixed to the top surface of the top battery pack, and the fourth suspension portion 722 is fixed to the top surface of battery management module 5, thereby completing the connection between battery packs 11 and battery management module 5.

[0051] Since there is a wire harness connection gap between two adjacent battery packs 11 through the first support tube 22, and a wire harness connection gap between the top battery pack 11 and the battery management module 5 through the second support tube 24, the first copper busbar 71 and the second copper busbar 72 have sufficient connection space.

[0052] like Figure 6 As shown, to ensure that the copper busbar assembly 7 will not fall off during use, each battery pack 11 has a support member 112 on opposite sides of its top surface, and the support member 112 has two first positioning holes 1121 spaced apart. The ends of the first suspension part 711, the second suspension part 712, the third suspension part 721, and the fourth suspension part 722 are each provided with a second positioning hole corresponding to the first positioning hole 1121 on the support member 112. By aligning the first positioning hole 1121 with the second positioning hole, and then using a positioning member to pass through the first positioning hole 1121 and the second positioning hole in sequence, the copper busbar assembly 7 and the battery pack 11 can be fixed together. Furthermore, as... Figure 5 As shown, the third suspension part 721 of the second copper busbar 72 is connected to the support part 112 of the top battery pack 11 via a positioning member, and the fourth suspension part 722 is directly electrically connected to the surface of the battery management module 5, thereby enabling the battery management module 5 to control the battery pack 11. Optionally, the positioning member is a bolt, which is common, low in cost, and provides good fixing effect.

[0053] It should be noted that in this embodiment, there are two battery packs 11 stacked along their height. Each battery pack 11 has a support member 112 on each opposite side of its top surface. To ensure that both battery packs 11 are connected in series with the battery management module 5, a first copper busbar 71 is located on the left side of the power assembly 1, connecting the top and bottom battery packs 11 in series. A second copper busbar 72 is located on the other side of the first copper busbar 71 (i.e., the right side of the power assembly 1), connecting the top battery pack 11 in series with the battery management module 5. This arrangement of the copper busbar assembly 7 reduces the risk of short circuits, ensuring safety and facilitating subsequent maintenance and parts replacement.

[0054] In other embodiments, three, four or more battery packs 11 may be used, and the copper busbar assembly 7 can also adopt this opposite side arrangement to ensure that multiple battery packs 11 are connected in series and that they will not short-circuit.

[0055] like Figure 5 As shown, to prevent interference from other electromagnetic signals to the battery management module 5 and the power supply component 1, the battery module also includes a metal shield 6. The metal shield 6 includes a shielding plate 62 and multiple support members 61 disposed at the bottom of the shielding plate 62. The support members 61 are connected to the second support plate 23 to fix the metal shield 6. In addition, the height of the support members 61 is greater than the height of the battery management module 5, so that the shielding plate 62 is located above the battery management module 5. This not only prevents interference from other electromagnetic signals to the battery management module 5 and the power supply component 1, but also ensures that the battery management module 5 will not be damaged if other external parts fall, thus ensuring safety during use.

[0056] When installing the battery module provided by this utility model, firstly, the connecting rod 3 is passed through the second connecting hole, the second support tube 24, the fixing hole 111, the first connecting hole, the first support tube 22, the fixing hole 111, and the third connecting hole in sequence, and the two ends of the connecting rod 3 are reinforced by the locking member 4; secondly, the battery management module 5 is fixed on the second support plate 23, and the two battery packs 11 are connected in series by the first copper busbar 71, and the top battery pack 11 is connected in series with the battery management module 5 by the second copper busbar 72; finally, the metal shield 6 is fixed on the second support plate 23, and the battery module is fixed in the shell by the fastener 252, and then it can be put into normal use.

[0057] In summary, the battery module provided by this utility model can solve both the problem of inconvenient integration of battery packs and the problem of limited space for installing memory wire harnesses.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery module, characterized by, include: A power supply assembly (1) includes at least two battery packs (11), and the battery packs (11) are provided with fixing holes (111); Support component (2), the support component (2) includes a first support plate (21) and a first support tube (22). The first support plate (21) is disposed between two adjacent battery packs (11). The first support plate (21) is provided with a first connecting hole. One end of the first support tube (22) abuts against the battery pack (11) located on the lower layer and is directly opposite to the fixing hole (111). The other end abuts against the first support plate (21) and is directly opposite to the first connecting hole. A connecting rod (3) passes through the opposite fixing hole (111), the first connecting hole and the first support tube (22). Both ends of the connecting rod (3) are provided with locking parts (4), and the power supply assembly (1) is located between the locking parts (4) at both ends.

2. The battery module of claim 1, wherein, The support assembly (2) further includes a second support plate (23) and a second support tube (24), the second support tube (24) is provided with a second connecting hole, and the second support plate (23) is provided on the top surface of the battery pack (11) at the top. One end of the second support tube (24) abuts against the battery pack (11) at the top and is aligned with the fixing hole (111), while the other end abuts against the second support plate (23) and is aligned with the second connecting hole.

3. The battery module of claim 2, wherein, The battery module also includes a battery management module (5), which is fixed on the second support plate (23) and is used to control the use of the battery module.

4. The battery module of claim 3, wherein, The battery module also includes a copper busbar assembly (7), which includes a first copper busbar component (71) and a second copper busbar component (72). The first copper busbar component (71) includes a first suspension part (711) and a second suspension part (712). The first suspension part (711) and the second suspension part (712) are respectively fixed to the top of two adjacent battery packs (11) to connect the two adjacent battery packs (11) in series. The second copper busbar (72) includes a third suspension part (721) and a fourth suspension part (722). The third suspension part (721) is fixed to the top surface of the top battery pack (11), and the fourth suspension part (722) is fixed to the top surface of the battery management module (5) so that the battery pack (11) is electrically connected to the battery management module (5).

5. The battery module of claim 3, wherein, The battery module also includes a metal shield (6), which includes a shield plate (62) and a support member (61) disposed at the bottom of the shield plate (62). The support member (61) is connected to the second support plate (23).

6. The battery module of claim 5, wherein, The height of the support member (61) is greater than the height of the battery management module (5), and the shielding plate (62) is located above the battery management module (5).

7. The battery module of any one of claims 1-6, wherein, The battery pack (11) has at least two fixing holes (111) spaced apart on its circumferential edge, and each fixing hole (111) is provided with a corresponding connecting rod (3).

8. The battery module of any one of claims 1-6, wherein, The support assembly (2) further includes a third support plate (25), on which a third connecting hole is provided, and the third connecting hole is corresponding to the fixing hole (111). The third support plate (25) is located at the bottom of the battery pack (11) at the bottom end, and the connecting rod (3) passes through the third connecting hole.

9. The battery module of claim 8, wherein, The opposite sides of the third support plate (25) are bent downward to form a bent portion (251). The bent portions (251) on the opposite sides and the bottom surface of the third support plate (25) form a receiving cavity, which is used to accommodate the locking member (4).

10. The battery module of claim 8, wherein, The third support plate (25) is also provided with fasteners (252), which are used to fix the third support plate (25) to an external device.

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