Busbar mechanism, cell module, and battery pack

Abstract

The present application relates to the technical field of connecting cell modules. Disclosed are a busbar mechanism, a cell module, and a battery pack. Regarding the busbar mechanism, the cell module, and the battery pack provided in the present application, the busbar mechanism comprises a first connecting bar and at least two adapter assemblies, wherein each of the adapter assemblies is arranged at one end of a corresponding cell module and is electrically connected to the cell module; the first connecting bar is located at the same end of the cell modules as the adapter assemblies; and two adjacent adapter assemblies are electrically connected by means of the first connecting bar, such that the corresponding cell modules are electrically connected to each other. By means of arranging the first connecting bar at the same end of the cell modules as the adapter assemblies, the end space of the cell modules is fully utilized, and the overall thickness of the cell modules provided with the busbar mechanism is reduced, thereby improving the energy density of a battery pack.

Description

A busbar mechanism, a cell module and a battery pack

[0001] This application claims priority to Chinese Patent Application No. 202411906689.4, filed on December 23, 2024, entitled "A Busbar Mechanism, a Cell Module and a Battery Pack", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to, but is not limited to, the field of battery cell module connection technology, and particularly to a busbar mechanism, a battery cell module, and a battery pack. Background Technology

[0003] During the assembly process of new energy vehicle battery packs, multiple cells need to be assembled into cell modules first. Then, each cell module is assembled into the assembly cavity formed by the battery pack frame and the crossbeams set in the frame. Finally, the cell modules are electrically connected through the busbar mechanism.

[0004] Currently, the busbar mechanism is installed on the battery cell module.

[0005] However, the overall thickness of the battery cell module with the busbar mechanism is relatively large. Summary of the Invention

[0006] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0007] This application provides a bus mechanism, a cell module, and a battery pack, which can reduce the overall thickness of the cell module.

[0008] To achieve the above objectives, this application provides a busbar mechanism, a cell module, and a battery pack, employing the following technical solutions:

[0009] In a first aspect, this application provides a bus mechanism disposed in a battery cell module, including a first connecting bus and at least two adapter components;

[0010] The adapter component is disposed at one end of the corresponding battery cell module and is electrically connected to the battery cell module;

[0011] The first connecting bar and the adapter assembly are both located at the same end of the battery cell module;

[0012] Two adjacent adapter components are electrically connected via the first connection bus to make the corresponding battery cell modules electrically connected.

[0013] In one possible implementation, the bus mechanism provided in this application includes a second connecting bus, at least one first adapter, and at least one second adapter.

[0014] Both the first adapter and the second adapter are respectively disposed on the cell busbar of the cell module and are electrically connected to the corresponding cell busbar;

[0015] The first adapter and the second adapter are connected via the second connection outlet;

[0016] One of the first adapter and the second adapter is electrically connected to the first connection outlet, and the other is electrically connected to the battery management system.

[0017] In one possible implementation, the bus mechanism provided in this application also includes a card connector;

[0018] The second connecting bar has a heat dissipation section;

[0019] The snap-fit ​​component is disposed on the liquid cooling plate of the corresponding battery cell module, and the heat dissipation part is disposed on the snap-fit ​​component;

[0020] So that the heat dissipation section is cooled by the liquid cooling plate.

[0021] In one possible implementation, the bus mechanism provided in this application has the first adapter connected to the battery management system, and the first adapter includes a first connecting part and a second connecting part;

[0022] Both the first connecting part and the second connecting part are disposed at both ends of the battery cell busbar circuit and are electrically connected to the busbar circuit;

[0023] The first connecting part is electrically connected to the second connecting outlet, and the second connecting part is electrically connected to the battery management system.

[0024] In one possible implementation, the bus mechanism provided in this application has the second adapter electrically connected to the first connector, and the second adapter includes a third connector and a fourth connector.

[0025] Both the third connection part and the fourth connection part are disposed at both ends of the battery cell busbar circuit and are electrically connected to the busbar circuit.

[0026] The third connection part is electrically connected to the second connection outlet, and the fourth connection part is electrically connected to the first connection outlet.

[0027] In one possible implementation, the busbar mechanism provided in this application includes at least one of the first connecting part, the second connecting part, the third connecting part and the fourth connecting part, which includes a support box, a box cover and a third connecting bus.

[0028] The support box and the box cover are detachably connected, and the support box and the box cover together form an installation cavity;

[0029] Part of the third connector is inserted into the mounting cavity, and the third connector is electrically connected to one of the bus circuit, the first connector, and the second connector.

[0030] The electrical connection point between the third connector and one of the bus circuit, the first connector, and the second connector is located within the mounting cavity.

[0031] In one possible implementation, the bus mechanism provided in this application further includes at least one connecting bolt;

[0032] The third connecting bar is connected to the support box via the connecting bolt, and the third connecting bar is connected to one of the bus circuit, the first connecting bar, and the second connecting bar via the connecting bolt.

[0033] In one possible implementation, the bus mechanism provided in this application has at least one bend on the first connecting bus.

[0034] The bending section is configured to avoid the crossbeam of the battery pack.

[0035] Secondly, this application provides a battery cell module, including a plurality of battery cell blocks and the aforementioned busbar mechanism disposed on the battery cell blocks.

[0036] Thirdly, this application provides a battery pack, including a frame and at least one of the aforementioned cell modules disposed within the frame.

[0037] The busbar mechanism, cell module, and battery pack provided in this application include a busbar mechanism comprising a first connecting busbar and at least two adapter components. Each adapter component is disposed at one end of a corresponding cell module and is electrically connected to the cell module. Both the first connecting busbar and the adapter components are located at the same end of the cell module. Adjacent adapter components are electrically connected via the first connecting busbar to ensure electrical connection between corresponding cell modules. By placing both the first connecting busbar and the adapter components at the same end of the cell module, the space at the end of the cell module is fully utilized, reducing the overall thickness of the cell module with the busbar mechanism installed.

[0038] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood. Attached Figure Description

[0039] The specific embodiments of this application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this application, and this application is not limited to the specific embodiments described below.

[0040] Figure 1 is a schematic diagram of a battery pack provided in an embodiment of this application;

[0041] Figure 2 is a partial internal structure diagram of a battery pack provided in an embodiment of this application;

[0042] Figure 3 is a schematic diagram of a busbar mechanism and a battery cell module provided in an embodiment of this application;

[0043] Figure 4 is a partial structural schematic diagram of the battery cell module and busbar mechanism in Figure 3;

[0044] Figure 5 is an enlarged structural diagram of part A in Figure 4;

[0045] Figure 6 is a partial structural schematic diagram of a busbar mechanism provided in an embodiment of this application;

[0046] Figure 7 is a partial structural schematic diagram of the second adapter in Figure 6;

[0047] Figure 8 is a schematic diagram of the exploded structure of the third connecting part in Figure 7;

[0048] Figure 9 is a schematic diagram of the exploded structure of the fourth connecting part in Figure 7;

[0049] Figure 10 is a schematic diagram of the support box in Figure 9;

[0050] Figure 11 is a structural schematic diagram from another perspective of Figure 10.

[0051] Explanation of reference numerals in the attached drawings: 10, Adapter assembly; 100, First connecting row; 110, Bending part; 200, Battery cell row; 300, Liquid cooling plate; 400, Second connecting row; 410, Heat dissipation part; 500, First adapter; 510, First connecting part; 520, Second connecting part; 600, Second adapter; 610, Third connecting part; 620, Fourth connecting part; 700, Snap-fit ​​part; 810, Support box; 811, Clearance notch; 820, Box cover; 830, Third connecting row; 840, Connecting bolt; 910, Grille seat; 920, Frame.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0054] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0056] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0057] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0058] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0059] As mentioned in the background section, existing cell modules with busbar mechanisms have a relatively large overall thickness. This is because, during the assembly process of new energy vehicle battery packs, multiple cells need to be assembled into cell modules first. Then, each cell module is assembled into a mounting cavity formed by the battery pack frame and crossbeams within the frame. Finally, the cell modules are electrically connected via a busbar mechanism. Currently, the busbar mechanism is located on the cell module. To avoid obstructing the mounting cavity and battery pack frame, the busbar mechanism is typically located on the top surface of the cell module. This arrangement results in a relatively large overall thickness for cell modules with busbar mechanisms.

[0060] The relatively large thickness of the battery cell module necessitates ample installation space within the battery pack, consequently increasing the overall thickness of the battery pack. This is understandable, as new energy vehicles are designed with limited installation space for the battery pack. Increased battery pack thickness can lead to a more compact structure for other components, hindering installation and subsequent maintenance. Furthermore, the busbar mechanism's placement on the top surface of the battery cell module occupies some of that space, reducing the module's energy density.

[0061] To address the aforementioned technical issues, this application provides a busbar mechanism, a cell module, and a battery pack. In this solution, the busbar mechanism includes a first connecting busbar and at least two adapter components. Each adapter component is disposed at one end of a corresponding cell module and is electrically connected to the cell module. Both the first connecting busbar and the adapter components are located at the same end of the cell module. Adjacent adapter components are electrically connected via the first connecting busbar, thus enabling the corresponding cell modules to be electrically connected. By placing both the first connecting busbar and the adapter components at the same end of the cell module, the space at the end of the cell module is fully utilized, eliminating the need to occupy the top space of the cell module. This reduces the overall thickness of the cell module with the busbar mechanism installed, contributing to improved energy density of the battery pack.

[0062] It should be noted that Figures 1 to 11 show simplified schematic diagrams of the busbar mechanism, cell module, and various components in the battery pack. The specific structures of the busbar mechanism, cell module, and other components in the battery pack are not limited to the examples shown in Figures 1 to 11.

[0063] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings:

[0064] Referring to Figures 1, 2, 3 and 4, an embodiment of this application provides a bus mechanism for a battery cell module, including a first connecting bus 100 and at least two adapter components 10.

[0065] The adapter component 10 is used to be disposed at one end of the corresponding cell module and is used to electrically connect with the cell module.

[0066] The first connecting bar 100 and the adapter component 10 are both located at the same end of the cell module. Two adjacent adapter components 10 are electrically connected through the first connecting bar 100 so that the corresponding cell modules are electrically connected.

[0067] In the above embodiments, the adapter component 10 is used to be disposed at one end of the corresponding cell module. It should be noted that the adapter component 10 is disposed at the end of the cell module in the extension direction. This extension direction can be the length direction or the width direction. This application embodiment does not limit this.

[0068] The cell module includes multiple cell arrays 200, and each cell array 200 includes multiple cylindrical cells, but it can also be a prismatic cell.

[0069] In addition, to ensure heat dissipation of the cell array 200, in one optional embodiment, a liquid cooling plate 300 is provided between two adjacent cell arrays 200, and the liquid cooling plate 300 abuts against the end of the cell array 200 to cool the cell array 200. This embodiment will not be described in detail here.

[0070] In the specific implementation of the above embodiments, by setting both the first connecting bus 100 and the adapter component 10 at the same end of the battery cell module, the space at the end of the battery cell module is fully utilized, without occupying the space at the top of the battery cell module, thus reducing the overall thickness of the battery cell module with the bus mechanism installed. In this way, the energy density of the battery cell module can be increased according to design needs.

[0071] In one possible implementation, the adapter assembly 10 includes a second connection bar 400, at least one first adapter 500, and at least one second adapter 600.

[0072] The first adapter 500 and the second adapter 600 are both used to be installed on the cell array 200 of the cell module and to be electrically connected to the corresponding cell array 200.

[0073] The first adapter 500 and the second adapter 600 are electrically connected via the second connecting strip 400.

[0074] One of the first adapter 500 and the second adapter 600 is electrically connected to the first connection bar 100, and the other is used for electrical connection to the battery management system.

[0075] It should be noted that the battery management system here can be either the vehicle's battery management system or the battery pack's battery management system. In one optional embodiment, the battery management system can monitor and manage the battery pack, ensuring its safe and efficient operation under various operating conditions. The battery management system also includes a battery pack circuit breaker unit to control the charging and discharging process of the battery pack. This application does not limit the battery management system.

[0076] In the above embodiments, by providing at least one first adapter 500 and at least one second adapter 600, and by electrically connecting the first adapter 500 and the second adapter 600 using the second connecting bus 400, it can be understood that multiple cell bus 200 can be provided according to design needs, which helps to expand the capacity of the cell module.

[0077] Furthermore, one of the first adapter 500 and the second adapter 600 is electrically connected to the first connecting bus 100, and the other is used to be electrically connected to the battery management system. By setting the first adapter 500 and the second adapter 600, the battery management system, the cell bus 200, the second connecting bus 400, the cell bus 200 and another cell module are connected in series.

[0078] In one possible implementation, as shown in Figures 3, 4 and 5, a snap-fit ​​connector 700 is also included.

[0079] The second connecting row 400 has a heat dissipation section 410.

[0080] The snap-fit ​​component 700 is used to be mounted on the liquid cooling plate 300 of the corresponding battery cell module, and the heat dissipation part 410 is mounted on the snap-fit ​​component 700.

[0081] It is used to cool the heat dissipation unit 410 through the liquid cooling plate 300.

[0082] Specifically, the snap-fit ​​component 700 is bonded to the end of the liquid cooling plate 300. By setting the snap-fit ​​component 700 to be bonded to the liquid cooling plate 300, a quick connection between the snap-fit ​​component 700 and the liquid cooling plate 300 can be achieved, improving installation efficiency.

[0083] The snap-fit ​​component 700 has at least two oppositely arranged snap-fit ​​connectors on the side away from the liquid cooling plate 300 to clamp the heat dissipation part 410 between the two snap-fit ​​connectors. The heat dissipation part 410 is bent. The bending angle and bending length of the heat dissipation part 410 need to be selected according to the design. The overall bending can be U-shaped and snap-fitted onto the liquid cooling plate 300.

[0084] On the one hand, the heat dissipation part 410 can be fixed relative to the liquid cooling plate 300 by the snap-fit ​​part 700, which can improve the stability of the second connecting strip 400. On the other hand, by setting the snap-fit ​​part 700, the heat dissipation part 410 can be brought close to or abutted against the liquid cooling plate 300, and the liquid cooling plate 300 can cool the heat dissipation part 410. Here, the second connecting strip 400 generates electric heat when it is working. A large amount of heat accumulation is not conducive to the normal operation of the second connecting strip 400, and may even lead to the damage of the second connecting strip 400. By using the liquid cooling plate 300 to cool the heat dissipation part 410, the damage to the second connecting strip 400 caused by heat accumulation can be avoided, and the safety of the second connecting strip 400 can be improved.

[0085] In one possible implementation, referring to Figures 3, 4 and 6, the first adapter 500 is used to connect to the battery management system, and the first adapter 500 includes a first connecting part 510 and a second connecting part 520.

[0086] The first connecting part 510 and the second connecting part 520 are both used to be disposed at both ends of the bus circuit of the cell array 200, and are used to be electrically connected to the bus circuit.

[0087] The first connecting part 510 is electrically connected to the second connecting bar 400, and the second connecting part 520 is used to be electrically connected to the battery management system.

[0088] In one alternative embodiment, the bus circuit of the cell array 200 consists of aluminum or copper bars connected in series with multiple cells in the cell array 200. In this embodiment, the first connection part 510 and the second connection part 520 are used to be electrically connected to the bus circuit. This can be understood as the first connection part 510 and the second connection part 520 being electrically connected to the aluminum or copper bars located at the ends of the cell array 200, respectively.

[0089] In the above embodiments, by providing the first connecting part 510 and the second connecting part 520, the battery management system can be connected in series with the cell array 200. At the same time, when the cell array 200 needs to be repaired or replaced, the connection between the first connecting part 510 and the bus circuit can be easily disconnected, and the connection between the second connecting part 520 and the battery management system can be disconnected, which facilitates replacement. In addition, since the cell array 200 needs to be pre-installed in the early stage, the first connecting part 510 and the second connecting part 520 can be assembled with the cell array 200 into a whole, which facilitates overall production and transportation.

[0090] In one possible implementation, referring to Figures 6, 7, 8 and 9, the second adapter 600 is used for electrical connection with the first connection bar 100, and the second adapter 600 includes a third connection portion 610 and a fourth connection portion 620.

[0091] The third connecting part 610 and the fourth connecting part 620 are both used to be installed at both ends of the bus circuit of the cell array 200, and are used to be electrically connected to the bus circuit.

[0092] The third connecting part 610 is electrically connected to the second connecting row 400, and the fourth connecting part 620 is electrically connected to the first connecting row 100.

[0093] In the above embodiments, by providing the third connecting part 610 and the fourth connecting part 620, the battery management system can be connected in series with the cell array 200. At the same time, when the cell array 200 needs to be repaired or replaced, the connection between the third connecting part 610 and the bus circuit can be easily disconnected, and the connection between the fourth connecting part 620 and the battery management system can be disconnected, which facilitates replacement. In addition, since the cell array 200 needs to be pre-installed in the early stage, the third connecting part 610 and the fourth connecting part 620 can be assembled with the cell array 200 into a whole, which facilitates the overall production and transportation.

[0094] In addition, by setting the fourth connecting part 620 to be electrically connected to the first connecting busbar 100, the electrical connection between two adjacent battery cell modules is realized. The structure is simple and helps to shorten the length of the copper busbar between two adjacent battery cell modules.

[0095] In one possible implementation, at least one of the first connecting portion 510, the second connecting portion 520, the third connecting portion 610, and the fourth connecting portion 620 includes a support box 810, a box cover 820, and a third connecting row 830.

[0096] The support box 810 and the cover 820 are detachably connected, and the support box 810 and the cover 820 together form an installation cavity.

[0097] Part of the third connector 830 is inserted into the mounting cavity. The third connector 830 is used to electrically connect to one of the bus circuit, the first connector 100, and the second connector 400.

[0098] The electrical connection point of the third connector 830 with one of the bus circuit, the first connector 100, and the second connector 400 is located inside the mounting cavity.

[0099] It should be noted that the first connecting bus 100, the second connecting bus 400 and the third connecting bus 830 mentioned above can all be high-voltage copper busbars. This part is the prior art in the relevant field, and the embodiments of this application do not limit it.

[0100] In the above embodiments, by providing a detachable connection between the support box 810 and the cover 820, the assembly of the support box 810 and the cover 820 can be completed relatively easily. Specifically, one of the support box 810 and the cover 820 has at least one snap-fit ​​connector, and the other has a corresponding snap-fit ​​groove, with the snap-fit ​​connector snapping into the snap-fit ​​groove. By providing a snap-fit ​​connector and a snap-fit ​​groove, the connection structure is simplified.

[0101] The third connector 830 is used for electrical connection to one of the bus circuit, the first connector 100, and the second connector 400.

[0102] The electrical connection point between the third connecting strip 830 and one of the bus circuit, the first connecting strip 100, and the second connecting strip 400 is located inside the mounting cavity. This arrangement allows the support box 810 and the cover 820 to jointly protect the electrical connection point between the third connecting strip 830 and one of the bus circuit, the first connecting strip 100, and the second connecting strip 400. On one hand, it prevents external impurities from contacting this connection point and affecting the stability of the electrical connection. On the other hand, since the third connecting strip 830, the bus circuit, the first connecting strip 100, and the second connecting strip 400 all generate heat during operation, and the heat is concentrated at the electrical connection point between the third connecting strip 830 and one of these connections, placing the connection point inside the mounting cavity also prevents high temperatures from affecting other components.

[0103] In one possible implementation, at least one connecting bolt 840 is also included.

[0104] The third connecting bar 830 is connected to the support box 810 by connecting bolts 840, and the third connecting bar 830 is connected to one of the bus circuit, the first connecting bar 100, and the second connecting bar 400 by connecting bolts 840.

[0105] In the above embodiments, by setting the connecting bolt 840, on the one hand, the third connecting busbar 830 can be electrically connected to one of the bus circuit, the first connecting busbar 100 and the second connecting busbar 400, and the stability of the electrical connection point between the third connecting busbar 830 and one of the bus circuit, the first connecting busbar 100 and the second connecting busbar 400 can be improved. On the other hand, by setting the connecting bolt 840, the third connecting busbar 830 can be detachably connected to the support box 810, which facilitates the assembly and subsequent replacement of the third connecting busbar 830.

[0106] In one possible implementation, referring to Figures 2 and 9, the first connecting row 100 has at least one bend 110 for avoiding the crossbeam of the battery pack.

[0107] It should be noted that the battery pack has an assembly cavity for installing cell modules. The assembly cavity is formed by the battery pack frame 920 and the crossbeams within the frame 920. When the first connecting bar 100 electrically connects two adjacent cell modules, the first connecting bar 100 interferes with the crossbeams. By setting the bending part 110, the first connecting bar 100 can avoid the crossbeams.

[0108] In one possible implementation, referring to Figures 9, 10, and 11, the support box 810 of the fourth connecting portion 620 also has a clearance notch 811 to avoid connection between the first connecting row 100 and the support box 810. By providing the clearance notch 811, the support box 810 can be installed at the position of the first connecting row 100 through the clearance notch 811, improving the ease of installation.

[0109] In one possible implementation, the battery cell module has a serpentine plate supporting the battery cells. Referring to Figures 3, 4, and 5, to improve the stability of the support box 810, a grid seat 900 is provided on the serpentine plate, and the support box 810 is snapped into the grid seat 900. Referring to Figures 10 and 11, a snap-fit ​​connector is provided at the bottom of the support box 810, and the snap-fit ​​connector is snapped into the grid seat 900.

[0110] Of course, in order to facilitate production and reduce unnecessary processing steps, grid seats 900 are set on both sides of the serpentine plate. In this way, when installing the serpentine plate, there is no need to deliberately design the installation direction of the serpentine plate, which indirectly improves the installation efficiency.

[0111] In the above embodiments, the length and arrangement of the grille seat 900 are not limited, as long as it can be snapped into the support box 810.

[0112] This application embodiment also provides a battery cell module, including a plurality of battery cell arrays 200 and the aforementioned busbar mechanism disposed on the battery cell arrays 200. The specific structure of the busbar mechanism has been described above and will not be repeated here. By providing the battery cell module with the aforementioned busbar mechanism, the space at the end of the battery cell module is fully utilized, and the overall thickness of the battery cell module with the busbar mechanism is reduced.

[0113] This application also provides a battery pack, including a frame 920 and at least one of the aforementioned cell modules disposed within the frame 920. This application does not limit the specific number of cell modules; by providing the aforementioned cell modules in the battery pack, the overall thickness of the battery pack can be reduced, and the energy density can be increased.

[0114] The implementation principle of a busbar mechanism, a cell module, and a battery pack according to an embodiment of this application is as follows: The busbar mechanism includes a first connecting bus 100 and at least two adapter components 10. The adapter components 10 are disposed at one end of a corresponding cell module and are used for electrical connection with the cell module. The first connecting bus 100 and the adapter components 10 are both located at the same end of the cell module. Two adjacent adapter components 10 are electrically connected through the first connecting bus 100 to make the corresponding cell modules electrically connected. By disposing of both the first connecting bus 100 and the adapter components 10 at the same end of the cell module, the space at the end of the cell module is fully utilized, reducing the overall thickness of the cell module with the busbar mechanism installed.

[0115] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein.

[0116] The embodiments in this application are intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0117] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A bus mechanism, disposed in a battery cell module, wherein, include: A first connecting row (100) and at least two transition components (10); The adapter component (10) is disposed at one end of the corresponding battery cell module and is electrically connected to the battery cell module; The first connecting bar (100) and the adapter assembly (10) are both located at the same end of the battery cell module; Two adjacent adapter components (10) are electrically connected through the first connection bar (100) so that the corresponding battery cell modules are electrically connected.

2. The busbar mechanism according to claim 1, wherein, The adapter assembly (10) includes a second connecting bar (400), at least one first adapter (500) and at least one second adapter (600); The first adapter (500) and the second adapter (600) are both respectively disposed on the cell busbar (200) of the cell module and are electrically connected to the corresponding cell busbar (200); The first adapter (500) and the second adapter (600) are electrically connected via the second connecting bar (400); One of the first adapter (500) and the second adapter (600) is electrically connected to the first connector (100), and the other is electrically connected to the battery management system.

3. The busbar mechanism according to claim 2, wherein, It also includes a card connector (700); The second connecting bar (400) has a heat dissipation part (410); The snap-fit ​​component (700) is disposed on the liquid cooling plate (300) of the corresponding battery cell module, and the heat dissipation part (410) is disposed on the snap-fit ​​component (700); So that the heat dissipation part (410) is cooled by the liquid cooling plate (300).

4. The busbar mechanism according to claim 2, wherein, The first adapter (500) is connected to the battery management system, and the first adapter (500) includes a first connecting part (510) and a second connecting part (520); The first connecting part (510) and the second connecting part (520) are both disposed at both ends of the bus circuit of the battery cell array (200) and are electrically connected to the bus circuit; The first connecting part (510) is electrically connected to the second connecting bar (400), and the second connecting part (520) is used to be electrically connected to the battery management system.

5. The busbar mechanism according to claim 4, wherein, The second adapter (600) is electrically connected to the first connecting bar (100), and the second adapter (600) includes a third connecting part (610) and a fourth connecting part (620); The third connection part (610) and the fourth connection part (620) are both disposed at both ends of the bus circuit of the battery cell array (200) and are electrically connected to the bus circuit; The third connecting part (610) is electrically connected to the second connecting bar (400), and the fourth connecting part (620) is electrically connected to the first connecting bar (100).

6. The busbar mechanism according to claim 5, wherein, At least one of the first connecting part (510), the second connecting part (520), the third connecting part (610) and the fourth connecting part (620) includes a support box (810), a box cover (820) and a third connecting row (830); The support box (810) and the cover (820) are detachably connected, and the support box (810) and the cover (820) together form an installation cavity; Part of the third connector (830) is inserted into the mounting cavity, and the third connector (830) is electrically connected to one of the bus circuit, the first connector (100) and the second connector (400); The electrical connection point of the third connector (830) to one of the bus circuit, the first connector (100), and the second connector (400) is located within the mounting cavity.

7. The busbar mechanism according to claim 6, wherein, It also includes at least one connecting bolt (840); The third connecting bar (830) is connected to the support box (810) by the connecting bolt (840), and the third connecting bar (830) is connected to one of the bus circuit, the first connecting bar (100) and the second connecting bar (400) by the connecting bolt (840).

8. The busbar mechanism according to any one of claims 1 to 7, wherein, The first connecting bar (100) has at least one bend (110); The bent portion (110) is configured to avoid the crossbeam of the battery pack.

9. A battery cell module, wherein, It includes a plurality of cell busbars (200) and a busbar mechanism as described in any one of claims 1 to 8 disposed on the cell busbars (200).

10. A battery pack, wherein, It includes a frame (920) and at least one battery cell module as described in claim 9 disposed within the frame (9).

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