Battery module and battery packaging assembly

Abstract

The embodiment of the utility model relates to the technical field of batteries, and particularly discloses a battery module and a battery packaging assembly.The battery module comprises a shell, a battery cell assembly and a mounting part, the shell is provided with a first containing cavity, the battery cell assembly is arranged in the first containing cavity, the battery cell assembly comprises a plurality of battery cell single bodies arranged in sequence, and the mounting part is arranged in the first containing cavity; the mounting part is arranged on the outer side of the shell, the mounting part is detachably connected with the shell, and the mounting part is used for fixing the shell to the outside. Through the detachable mounting piece, the mounting flexibility of the battery module is improved, and the mounting difficulty and cost are reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery module and battery packaging assembly. Background Technology

[0002] With the rapid development of new energy technologies, battery modules, as core components in applications such as electric vehicles and energy storage systems, directly affect the operating efficiency and reliability of the entire equipment or system through their structure and performance. Battery modules are typically composed of multiple individual battery cells, encapsulated and protected by a casing. In practical applications, to meet demands for high energy density, long driving range, or large-scale energy storage, multiple battery modules are usually connected in series or parallel to form a larger capacity and higher performance battery system. For example, in data centers, communication base stations, or large-scale energy storage facilities, racks are often used to centrally install and manage multiple battery modules. Currently, when installing battery modules in racks, installation is primarily achieved through mounting structures fixed to the battery module casing.

[0003] In implementing the embodiments of this application, the inventors discovered that the installation structure fixed to the shell lacks flexibility and is difficult to adapt to cabinets of different sizes and specifications, which leads to the need for additional adaptation or adjustment during installation, increasing the installation difficulty and cost. Utility Model Content

[0004] In view of the above problems, this application provides a battery module and battery packaging assembly that overcomes or at least partially solves the above problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a battery module, including a housing, a cell assembly and a mounting component, wherein the housing is provided with a first receiving cavity, the cell assembly is disposed in the first receiving cavity, the cell assembly includes a plurality of sequentially arranged individual cells, the mounting component is disposed on the outside of the housing, the mounting component is detachably connected to the housing, and the mounting component is used to fix the housing to the outside.

[0006] In some embodiments, the housing is provided with a first connection hole, the mounting member is provided with a second connection hole, and the battery module further includes a fixing member, which is used to pass through the second connection hole and the first connection hole in sequence to fix the mounting member to a first position of the housing.

[0007] In some embodiments, the housing is further provided with a third connecting hole for the fastener to be inserted after passing through the second connecting hole, so as to fix the mounting member to a second position of the housing.

[0008] In some embodiments, the number of mounting members is at least two, and the at least two mounting members are respectively disposed on at least one side of the housing, and at least one side of the housing is provided with the first connecting hole and / or the third connecting hole.

[0009] In some embodiments, the mounting member is provided with a first mounting slot and a second mounting slot, the first mounting slot extending along a first direction and the second mounting slot extending along a second direction, the first direction and the second direction being perpendicular to each other.

[0010] In some embodiments, the housing is provided with a heat dissipation through hole, the heat dissipation through hole is connected to the receiving cavity, and the heat dissipation through hole is provided on at least one side of the housing.

[0011] In some embodiments, the housing is provided with a lifting hole for connecting to a lifting tool to perform lifting operations on the battery module.

[0012] In some embodiments, the battery module further includes a main circuit board and an integrated busbar. The main circuit board and the integrated busbar are disposed in the first receiving cavity. The integrated busbar is disposed at one end of the battery cell assembly that has a polarized terminal. The integrated busbar includes a substrate, a data acquisition harness, and a plurality of electrical connectors. The plurality of electrical connectors and the data acquisition harness are disposed on the substrate. The plurality of electrical connectors are arranged sequentially and are used to electrically connect the plurality of individual battery cells sequentially. The data acquisition harness is used to transmit the data acquisition signal of the battery cell assembly to the main circuit board.

[0013] In some embodiments, the integrated busbar further includes a first main electrical connection and a second main electrical connection, both of which are electrically connected to the cell assembly and the main circuit board to achieve electrical connection between the cell assembly and the main circuit board. The cell assembly further includes a limiting member located on one side of the plurality of cell units along the arrangement direction of the plurality of cell units, and the limiting member abuts against the first main electrical connection and the second main electrical connection.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a battery packaging assembly for packaging the battery module, the battery packaging assembly including a box, a first buffer and a second buffer, the box having a second receiving cavity, the battery module being detachably disposed in the second receiving cavity, the first buffer being disposed in the second receiving cavity, the first buffer having a first groove, one end of the battery module being disposed in the first groove, the second buffer being disposed in the second receiving cavity, the second buffer having a second groove, the second groove being opposite to the first groove, the other end of the battery module being disposed in the second groove, wherein the first buffer has a first central through hole and / or the second buffer has a second central through hole.

[0015] The beneficial effects of this application's embodiments are as follows: Unlike existing technologies, this application provides a battery module and battery packaging assembly. The battery module includes a housing, a cell assembly, and a mounting component. The housing has a first receiving cavity, and the cell assembly is disposed within the first receiving cavity. The cell assembly includes a plurality of sequentially arranged individual cells. The mounting component is disposed on the outside of the housing and is detachably connected to the housing, used to fix the housing to the outside environment. The detachable mounting component improves the installation flexibility of the battery module and reduces installation difficulty and cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of a battery module provided in an embodiment of this application;

[0018] Figure 2 This is an exploded view of a battery module provided in an embodiment of this application;

[0019] Figure 3 This is a perspective view of a battery module with the cover and separator removed, provided in an embodiment of this application.

[0020] Figure 4 This is a perspective sectional view of the housing provided in the embodiment of this application;

[0021] Figure 5 This is a three-dimensional enlarged view of the mounting component provided in the embodiments of this application;

[0022] Figure 6This is an exploded view of the battery cell assembly provided in the embodiments of this application;

[0023] Figure 7 This is an exploded view of the integrated busbar provided in the embodiments of this application;

[0024] Figure 8 This is a perspective view of a battery packaging assembly provided in an embodiment of this application;

[0025] Figure 9 This is an exploded view of a battery packaging assembly provided in an embodiment of this application;

[0026] Figure 10 This is a perspective view of a battery packaging structure provided in an embodiment of this application. Detailed Implementation

[0027] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figure 1 and Figure 2 The battery module 100 includes a housing 1, a mounting component 2, and a cell assembly 3. The cell assembly 3 is disposed inside the housing 1, and the mounting component 2 is disposed outside the housing 1. The mounting component 2 is used to fix the housing 1 to the outside.

[0030] In some embodiments, please refer to 2 to Figure 4 The housing 1 is provided with a first receiving cavity 10, and the battery cell assembly 3 is disposed in the first receiving cavity 10. The battery cell assembly 3 includes a plurality of battery cell units 31 arranged in sequence and electrically connected. The mounting component 2 is detachably connected to the housing 1, so that the mounting component 2 can be easily replaced or adjusted when facing different installation environments or maintenance needs, thereby improving the adaptability and maintainability of the battery module 100.

[0031] Regarding the housing 1 described above, please refer to some embodiments. Figure 2 and Figure 4 The housing 1 includes a front plate 12, a bottom plate 13, and a cover 11. The cover 11 is connected to the front plate 12 and the bottom plate 13 respectively, and together they enclose a first receiving cavity 10. The cover 11 includes a top plate 111, a first side plate 112, a second side plate 113, and a third side plate 114. The first side plate 112, the second side plate 113, and the third side plate 114 are connected in sequence. The first side plate 112 and the third side plate 114 are both connected to the front plate 12. The top plate 111 is connected to the first side plate 112, the second side plate 113, the third side plate 114, and the front plate 12. The bottom plate 13 is arranged opposite to the top plate 111 along a first direction x. The bottom plate 13 is connected to the first side plate 112, the second side plate 113, the third side plate 114, and the front plate 12. The first side plate 112 and the third side plate 114 are arranged opposite to each other along a second direction y. The second side plate 113 and the front plate 12 are arranged opposite to each other along a third direction z. Among them, the first direction x, the second direction y, and the third direction z are all perpendicular to each other.

[0032] In some embodiments, please continue reading Figure 2 The base plate 13 is provided with screw holes 131, which are used for bolts to pass through the end of the cover 11 near the base plate 13 and then screw in to fix the cover 11 to the base plate 13. Along the second direction y or the third direction z, the projection of the screw holes 131 is not located in the gap between the individual cells 31, so as to reduce the risk of short circuit caused by accidental contact with the individual cells 31 during bolt installation.

[0033] In some embodiments, a lifting hole 16 is provided at one end of the cover 11 near the base plate 13. The lifting hole 16 is gourd-shaped and is used to connect with a lifting tool for lifting the battery module 100. Compared to manual handling or using suction cups to move the battery module 100, the design of the lifting hole 16 makes the handling and installation of the battery module 100 more convenient and safer.

[0034] In some embodiments, the housing 1 further includes a handle 17 disposed on the front panel 12, the handle 17 being used by an operator to grip in order to move or install the battery module 100.

[0035] Regarding the aforementioned mounting component 2, in some embodiments, please refer to 2 and Figure 5 The mounting part 2 includes a mounting part 22 and a connecting part 21. The mounting part 22 is perpendicularly connected to the connecting part 21. The mounting part 22 is parallel to the first direction x and the second direction y. The connecting part 21 is parallel to the third direction z. The connecting part 21 is used to connect with the housing 1. The mounting part 22 is used to install and fix to the outside.

[0036] In some embodiments, the front panel 12 is provided with a first connection hole 14, and the connecting portion 21 is provided with a second connection hole 211. The battery module 100 also includes a fixing member (not shown) for passing through the second connection hole 211 and the first connection hole 14 in sequence to fix the mounting member 2 to a first position of the housing 1.

[0037] In some embodiments, the first position refers to the position of the mounting member 2 on the housing 1 when the mounting member 2 is installed on the outside of the housing 1 and the mounting part 22 is flush with the front plate 12.

[0038] In some embodiments, the fastener is a bolt and a nut, with the bolt passing through the mounting member 2 and the housing 1 and then screwed onto the nut. In other embodiments, the fastener is a snap-fit, which passes through the mounting member 2 and the housing 1 and then snaps onto the housing 1.

[0039] In some embodiments, the housing 1 is further provided with a third connecting hole 15, which is used for inserting a fastener after passing through the second connecting hole 211 to fix the mounting member 2 to a second position on the housing 1. The second position refers to a position on the outside of the housing 1 that differs from the first position, thereby improving the adjustability of the mounting member 2 and enhancing the installation flexibility and adaptability of the battery module 100. In one example, please refer to... Figure 2 The third connecting hole 15 is provided on the first side plate 112 and / or the third side plate 114.

[0040] It is understood that in some embodiments, the number of mounting members 2 is at least two, and the at least two mounting members 2 are respectively disposed on at least one side of the housing 1, and at least one side of the housing 1 is provided with a first connecting hole 14 and / or a third connecting hole 15. In one example, please refer to... Figure 2 The front plate 12 is provided with first connecting holes 14 on both sides along the second direction y, and the first side plate 112 and the second side plate 113 are provided with third connecting holes 15. The mounting parts 2 are respectively provided on both sides of the housing 1 along the second direction y.

[0041] In some embodiments, please refer to Figure 5 The mounting part 22 is provided with a first mounting waist hole 221 and a second mounting waist hole 222. The first mounting waist hole 221 extends along a first direction x, and the second mounting waist hole 222 extends along a second direction y. There are one or more of the first mounting waist holes 221 and the second mounting waist holes 222. The first mounting waist holes 221 and the second mounting waist holes 222 provide bidirectional position adjustment space for the mounting part 2 during the installation process, further enhancing the installation flexibility and adaptability of the battery module 100.

[0042] In some embodiments, the battery cell assembly 3 includes a plurality of sequentially arranged and electrically connected individual battery cells 31. The number of battery cell assemblies 3 may be one or more, with the plurality of battery cell assemblies 3 sequentially electrically connected, and each electrical assembly including a plurality of sequentially electrically connected individual battery cells 31. In one example, please refer to... Figure 3 and Figure 6 There are two battery cell assemblies 3, which are arranged along the third direction z. In one battery cell assembly 3, multiple individual battery cells 31 are arranged sequentially along the second direction y.

[0043] In some embodiments, please refer to Figure 6 The battery cell assembly 3 also includes an end plate 32 and an insulating plate 33. The end plates 32 are respectively disposed at both ends of a plurality of individual battery cells 31, and the insulating plate 33 is disposed between the end plates 32 and the individual battery cells 31, serving as electrical isolation between the end plates 32 and the individual battery cells 31. One end of the end plate 32 is connected to the base plate 13, and the base plate 13 is provided with a limiting block 132, which abuts against one end of the end plate 32 to enhance the limiting and supporting function of the battery cell assembly 3.

[0044] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 7 The battery module 100 also includes a main circuit board 4 and an integrated busbar 5, which are disposed in the first receiving cavity 10. The main circuit board 4 is disposed between the cell assembly 3 and the front panel 12. The integrated busbar 5 is disposed at the end of the cell assembly 3 that has polarized terminals. The integrated busbar 5 includes a substrate 51, a data acquisition harness 53, and multiple electrical connectors 52. The multiple electrical connectors 52 and the data acquisition harness 53 are disposed on the substrate 51. The multiple electrical connectors 52 are arranged sequentially and are used to electrically connect multiple individual cell units 31 sequentially. The data acquisition harness 53 is used to transmit the data acquisition signals of the cell assembly 3 to the main circuit board 4. The data acquisition harness 53 is integrated into the integrated busbar 5, making the internal structure of the battery module 100 more compact and the wiring more concise and orderly, effectively reducing the risk of failure caused by loose cables or poor contact due to multiple cable connections.

[0045] In some embodiments, the housing 1 is provided with a heat dissipation hole 18, which communicates with the receiving cavity, and the heat dissipation hole 18 is provided on at least one side of the housing 1. In one example, please refer to... Figure 2 The first side plate 112, the third side plate 114 and the bottom plate 13 are all provided with heat dissipation holes 18. Furthermore, the heat dissipation holes 18 provided on the first side plate 112 and the third side plate 114 are respectively located between the two battery cell assemblies 3 and between the battery cell assembly 3 and the circuit board, so as to effectively dissipate the heat generated by the battery module 100 during operation and improve the safety and durability of the battery module 100.

[0046] In some embodiments, the main circuit board 4 is equipped with a battery management system, which is used to monitor and manage the operating status of the battery module 100. The battery management system is connected to the integrated busbar 5 via a data acquisition harness 53, and receives key parameter information such as voltage, current, and temperature of the cell assembly 3 in real time, and processes and analyzes this information.

[0047] In some embodiments, please refer to Figure 2 The main circuit board 4 is equipped with multiple connectors 41 and air switches 42, and the front panel 12 has openings that match the connectors 41 and air switches 42. The multiple connectors 41 are used for electrical connection with external devices or power systems to realize the charging and discharging functions of the battery module 100 and data transmission. The air switches 42 are used to automatically disconnect in case of abnormal conditions such as overcurrent or short circuit in the battery module 100, thereby improving the safety of the battery module 100.

[0048] In some embodiments, the front panel 12 is also provided with a grounding hole 121, which is used for a grounding wire to pass through in order to ground the battery module 100 and improve electrical safety.

[0049] In some embodiments, please refer to Figure 7 The integrated busbar 5 also includes a first main electrical connector 54 and a second main electrical connector 55, both of which are electrically connected to the cell assembly 3 and the main circuit board 4 to achieve electrical connection between the cell assembly 3 and the main circuit board 4.

[0050] In some embodiments, the battery cell assembly 3 further includes a limiting member 34. Along the arrangement direction of the plurality of battery cells 31, the limiting member 34 is located on one side of the plurality of battery cells 31. The limiting member 34 is located between the battery cell 31 and the end plate 32. The limiting member 34 abuts against the first main electrical connector 54 and the second main electrical connector 55. The limiting member 34 is used to support the first main electrical connector 54 and the second main electrical connector 55. Furthermore, the limiting member 34 cooperates with the plurality of battery cells 31 to improve the structural strength of the battery cell assembly 3.

[0051] In some embodiments, an insulating member 35 is provided on the limiting member 34, the insulating member 35 being located between the first main electrical connector 54 and the limiting member 34, and between the second main electrical connector 55 and the limiting member 34.

[0052] In some embodiments, the electrical connector 52, the first main electrical connector 54, and the second main electrical connector 55 are connecting aluminum busbars.

[0053] In some embodiments, please refer to Figure 2 The battery module 100 also includes a separator 6, which is disposed in the first receiving cavity 10 and is located between the integrated busbar 5 and the top plate 111.

[0054] In this embodiment, the battery module 100 improves the installation flexibility and adaptability of the battery module 100 by means of the mounting component 2 that is detachably connected to the housing 1, so that the battery module 100 can adapt to cabinets of different sizes and specifications without the need for additional adaptation or adjustment, thereby reducing the installation difficulty and cost.

[0055] This application also provides 200 embodiments of battery packaging assemblies; please refer to [link / reference]. Figure 8 and Figure 9 The battery packaging assembly 200 is used to package the battery module 100 described above. The structure and function of the battery module 100 can be found in the above embodiments, and will not be described in detail here.

[0056] In some embodiments, please refer to Figure 9 The battery packaging assembly 200 includes a housing 210, a first buffer 220, and a second buffer 230. The housing 210 has a second receiving cavity 250, in which the battery module 100 is detachably disposed. The first buffer 220 and the second buffer 230 are disposed in the second receiving cavity 250. The first buffer 220 has a first groove, and the second buffer 230 has a second groove 270, which is opposite to the first groove. One end of the battery module 100 is disposed in the first groove, and the other end of the battery module 100 is disposed in the second groove 270. The first buffer 220 and the second buffer 230 fix and buffer the battery module 100, effectively reducing the risk of damage to the battery module 100 due to vibration and collision during transportation or storage.

[0057] In some embodiments, the first buffer member 220 is provided with a first central through hole 260, which is located in the central region of the first buffer member 220.

[0058] In some embodiments, the second buffer member 230 is provided with a second central through hole 280, which is located in the central region of the second buffer member 230. The second central through hole 280 is correspondingly provided with the first central through hole 260. The second central through hole 280 and the first central through hole 260 help to reduce the load-bearing pressure at the center of the battery module 100 and improve the safety of the battery module 100 during transportation or storage.

[0059] In some embodiments, the first central through-hole 260 and / or the second central through-hole 280 are used to accommodate accessories of the battery module 100, enhancing the functionality of the battery packaging assembly 200.

[0060] In some embodiments, the battery packaging assembly 200 further includes corner protectors 240, which are disposed at the four corners of the first buffer 220 and the second buffer 230, and serve to limit, fix and support.

[0061] In this embodiment, the battery packaging assembly 200 provides packaging protection for the battery module 100, improving the safety and stability of the battery module 100 during transportation and storage.

[0062] This application also provides 300 embodiments of battery packaging structures; please refer to [link / reference]. Figure 10 The battery packaging structure 300 includes a base 310, a plurality of battery modules 100 as described above, and a plurality of battery packaging assemblies 200 as described above. A battery packaging assembly 200 is used to package a battery module 100, and the plurality of boxes 210 are stacked sequentially on the base 310. The structure and function of the battery module 100 and the battery packaging assembly 200 can be referred to the above embodiments, and will not be described in detail here.

[0063] In some embodiments, the number of bases 310 is one or more, and the multiple bases 310 and the battery modules 100 and battery packaging assemblies 200 on the bases 310 are assembled according to storage or transportation requirements.

[0064] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A battery module, characterized in that, include: The housing has a first receiving cavity; A battery cell assembly is disposed in the first receiving cavity, the battery cell assembly comprising a plurality of battery cell units arranged in sequence; An mounting component is disposed on the outside of the housing. The mounting component is detachably connected to the housing and is used to fix the housing to the outside. The mounting component is provided with a first mounting waist hole and a second mounting waist hole. The first mounting waist hole extends along a first direction, and the second mounting waist hole extends along a second direction. The first direction and the second direction are perpendicular to each other.

2. The battery module according to claim 1, characterized in that... , The housing is provided with a first connection hole, and the mounting component is provided with a second connection hole; The battery module also includes a fixing member, which is used to pass through the second connecting hole and the first connecting hole in sequence to fix the mounting member to a first position of the housing.

3. The battery module according to claim 2, characterized in that... , The housing is also provided with a third connecting hole, which is used for the fastener to pass through the second connecting hole and be inserted to fix the mounting member to the second position of the housing.

4. The battery module according to claim 3, characterized in that, The number of mounting components is at least two, and the at least two mounting components are respectively disposed on at least one side of the housing. At least one side of the housing is provided with the first connecting hole and / or the third connecting hole.

5. The battery module according to claim 1, characterized in that, The housing is provided with heat dissipation holes, which communicate with the receiving cavity and are located on at least one side of the housing.

6. The battery module according to claim 5, characterized in that, The housing is provided with a lifting hole for connecting to a lifting tool to perform lifting operations on the battery module.

7. The battery module according to claim 1, characterized in that, The battery module also includes a main circuit board and an integrated busbar, which are disposed in the first receiving cavity; The integrated busbar is disposed at one end of the battery cell assembly that has polarized terminals. The integrated busbar includes a substrate, a data acquisition harness, and multiple electrical connectors. The multiple electrical connectors and the data acquisition harness are disposed on the substrate. The multiple electrical connectors are arranged in sequence and are used to electrically connect the multiple individual battery cells in sequence. The data acquisition harness is used to transmit the data acquisition signal of the battery cell assembly to the main circuit board.

8. The battery module according to claim 7, characterized in that, The integrated busbar also includes a first main electrical connection and a second main electrical connection component, both of which are electrically connected to the battery cell assembly and the main circuit board to realize the electrical connection between the battery cell assembly and the main circuit board; The battery cell assembly further includes a limiting member, which is located on one side of the plurality of battery cells along the arrangement direction of the plurality of battery cells, and abuts against the first main electrical connector and the second main electrical connector.

9. A battery packaging assembly for packaging a battery module as described in any one of claims 1-8, characterized in that, include The housing has a second receiving cavity, in which the battery module is detachably disposed; A first buffer is disposed in the second receiving cavity. The first buffer has a first groove, and one end of the battery module is disposed in the first groove. A second buffer is disposed in the second receiving cavity. The second buffer has a second groove, which is disposed opposite to the first groove. The other end of the battery module is disposed in the second groove. The first buffer member is provided with a first central through hole, and / or the second buffer member is provided with a second central through hole.

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