Integrated busbar assembly, battery cell module and battery pack

Abstract

The utility model provides an integrated busbar assembly, a battery cell module and a battery pack, and relates to the technical field of battery cell data acquisition. The integrated busbar assembly comprises a circuit board part, a plurality of electric connecting parts and a plurality of first collecting parts, the electric connecting parts are used for electrically connecting two adjacent battery cells, the first collecting parts are correspondingly arranged on the electric connecting parts to correspondingly collect first parameter values of the electric connecting parts, and the first collecting parts are electrically connected with the circuit board part to collect the first parameter values of the electric connecting parts. The electric connecting pieces are arranged on one of the end face and the side face of the battery cell, the circuit board piece is arranged on the other one of the end face and the side face of the battery cell, and an included angle is formed between the end face and the side face of the battery cell. The circuit board piece and the plurality of electric connecting pieces are arranged in different planes, so that when the circuit board piece and the electric connecting pieces work, the concentration of generated heat is avoided, and the normal work of the battery pack is ensured.

Description

Technical Field

[0001] This application relates to cell data acquisition technology, and more particularly to an integrated busbar assembly, cell module and battery pack. Background Technology

[0002] Cylindrical cells can be used in the battery packs of new energy vehicles. Cylindrical cells are widely used because of their small size and better absorption of expansion forces. In the process of assembling cylindrical cells into a battery pack, multiple cylindrical cells are first assembled into a cell array, then multiple cell arrays are assembled together with an integrated busbar assembly to form a cell module, and finally at least one cell module is assembled onto a frame to form a battery pack.

[0003] Currently, the integrated busbar assembly includes circuit connectors, circuit boards, and signal acquisition components. The circuit connectors connect the cylindrical cells in series and parallel, and the signal acquisition components collect various parameters of the cylindrical cells. The signal acquisition components then transmit the collected parameters to the battery management system via the circuit board.

[0004] However, in order to reduce wiring harnesses, the circuit board, signal acquisition components, and electrical connectors are all placed in the same plane, which concentrates heat generation and causes the signal acquisition components to detect inaccurately due to the high temperature, while also affecting the normal operation of the battery pack. Utility Model Content

[0005] In view of this, this application provides an integrated busbar assembly, cell module and battery pack, which can avoid heat concentration and ensure the normal operation of the battery pack.

[0006] To achieve the above objectives, this application provides an integrated busbar assembly, cell module, and battery pack, employing the following technical solution:

[0007] In a first aspect, this application provides an integrated busbar assembly for a battery cell busbar, the battery cell busbar including a plurality of battery cells, the integrated busbar assembly including: a circuit board, a plurality of electrical connectors and a plurality of first acquisition components;

[0008] The electrical connector is used to electrically connect two adjacent battery cells;

[0009] The first acquisition element is correspondingly disposed on the electrical connector to acquire the first parameter value of the electrical connector;

[0010] Each of the first acquisition devices is electrically connected to the circuit board to transmit the first parameter value to the battery management system via the circuit board.

[0011] Each of the aforementioned electrical connectors is disposed on one of the end face and the side face of the battery cell;

[0012] The circuit board is disposed on the other of the end face and side face of the battery cell.

[0013] In one possible implementation, the integrated busbar assembly provided in this application includes an electrical connector comprising a plate body, on which a first connecting portion and a second connecting portion are provided;

[0014] The plate is disposed between two adjacent battery cells;

[0015] The first connection portion is used for electrical connection with one of the two adjacent battery cells;

[0016] The second connection portion is used for electrical connection with the other of the two adjacent battery cells;

[0017] The first acquisition device is disposed on the plate to acquire the first parameter value of the plate.

[0018] In one possible implementation, the integrated busbar assembly provided in this application includes a first acquisition element comprising an acquisition piece and an acquisition line;

[0019] The acquisition chip is mounted on the board and electrically connected to the circuit board via the acquisition line.

[0020] In one possible implementation, the integrated busbar assembly provided in this application further includes a first insulating pad for the first acquisition element;

[0021] The first insulating pad is disposed on the plate body and between the acquisition line and the plate body.

[0022] In one possible implementation, the integrated busbar assembly provided in this application further includes a second insulating pad;

[0023] The second insulating pad is disposed between two adjacent battery cell arrays, and the second insulating pad is disposed between the acquisition line and the battery cell array.

[0024] In one possible implementation, the integrated busbar assembly provided in this application further includes an insulating plate;

[0025] The projection of the insulating plate toward the cell array is located outside the cell array, and the insulating plate is disposed between the cell array and the electrical connector;

[0026] The insulating plate has multiple clearance grooves, which are used to avoid the electrical connection points between the electrical connector and the battery cell.

[0027] In one possible implementation, the integrated busbar assembly provided in this application further includes at least one second acquisition element;

[0028] The second acquisition device is disposed on the insulating plate and electrically connected to the circuit board to acquire the second parameter value of the insulating plate.

[0029] In one possible implementation, the integrated busbar assembly provided in this application has a first parameter value of at least one of a voltage value and a current value, and a second parameter value of a temperature value.

[0030] Secondly, this application provides a battery cell module, including at least two battery cell busbars and at least one of the aforementioned integrated busbar assemblies.

[0031] Thirdly, this application provides a battery pack, including a frame and at least one of the aforementioned cell modules.

[0032] This application provides an integrated busbar assembly, a cell module, and a battery pack. The integrated busbar assembly includes a circuit board, multiple electrical connectors, and multiple first acquisition units. The electrical connectors are used to electrically connect two adjacent cells. The first acquisition units are correspondingly disposed on the electrical connectors to acquire the first parameter values ​​of the electrical connectors. Each first acquisition unit is electrically connected to the circuit board to transmit the first parameter values ​​to the battery management system via the circuit board. Each electrical connector is disposed on one of the end face and side face of the cell, and the circuit board is disposed on the other of the end face and side face of the cell. There is an included angle between the end face and side face of the cell. In this way, the circuit board and the multiple electrical connectors are disposed in different planes, which avoids the concentration of heat generation when the circuit board and the electrical connectors are working, and ensures the normal operation of the battery pack.

[0033] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a schematic diagram of the structure of a battery pack provided in an embodiment of this application;

[0036] Figure 2 for Figure 1 A schematic diagram of part of the internal structure of the battery pack;

[0037] Figure 3 for Figure 2A schematic diagram of the structure of the battery module;

[0038] Figure 4 for Figure 1 Schematic diagram of the integrated busbar assembly and battery cell busbar;

[0039] Figure 5 for Figure 4 A magnified structural diagram of part A in the middle;

[0040] Figure 6 for Figure 4 A magnified structural diagram of part B in the middle section;

[0041] Figure 7 for Figure 5 Schematic diagram of the structure of the electrical connector;

[0042] Figure 8 for Figure 5 A schematic diagram of another form of the electrical connector;

[0043] Figure 9 This is a schematic diagram of the structure of a cylindrical battery cell in related technologies;

[0044] Figure 10 for Figure 1 A schematic diagram of the connection between the circuit board and the battery management system.

[0045] Explanation of reference numerals in the attached figures:

[0046] 100. Battery cell busbar;

[0047] 200. Battery cell;

[0048] 300. Circuit board components;

[0049] 400 Electrical connector; 410 Plate; 420 First connecting part; 430 Second connecting part; 440 Bending part;

[0050] 500, First data acquisition component; 510, Data acquisition plate; 520, Data acquisition cable; 530, First insulating pad; 540, Second insulating pad;

[0051] 600. Insulating board; 610. Clearance groove;

[0052] 700, Second Collection Item;

[0053] 800, Adapter; 810, Male Terminal;

[0054] 900, from the board; 910, the mother end; 920, the frame.

[0055] 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

[0056] 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.

[0057] 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.

[0058] 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.

[0059] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0060] 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.

[0061] 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.

[0062] As described in the background section, in the process of assembling cylindrical cells into a battery pack, multiple cylindrical cells need to be assembled into a cell array first, then multiple cell arrays are assembled together with an integrated busbar assembly into a cell module, and then at least one cell module is assembled onto a frame to form a battery pack.

[0063] The existing integrated busbar assembly, Cells Contact System (CCS), includes circuit connectors, circuit boards, and signal acquisition components. The circuit connectors connect the cylindrical cells in series and parallel, and the signal acquisition components collect the temperature and voltage of the cylindrical cells. The collected temperature and voltage values ​​are then transmitted to the battery management system via the circuit board. It can also be integrated into the battery management system as part of the battery management system.

[0064] However, in order to reduce wiring harnesses, traditional battery packs place circuit boards, signal acquisition components, and electrical connectors on the same plane. The components in the cylindrical cells and integrated busbar assemblies are all electronic devices, which generate heat during operation. The heat generated by the components on the same plane will cause heat accumulation. On the one hand, the concentrated heat generation is not conducive to the detection of voltage and temperature values, affecting the accuracy of detection, and even the high temperature may affect the normal operation of the battery pack.

[0065] Based on the above-mentioned technical problems, this application provides an integrated busbar assembly, a cell module, and a battery pack. The integrated busbar assembly includes a circuit board, multiple electrical connectors, and multiple first acquisition units. The electrical connectors are used to electrically connect two adjacent cells. The first acquisition units are correspondingly disposed on the electrical connectors to collect the first parameter values ​​of the electrical connectors. Each first acquisition unit is electrically connected to the circuit board to transmit the first parameter values ​​to the battery management system through the circuit board. Each electrical connector is disposed on one of the end face and side face of the cell, and the circuit board is disposed on the other of the end face and side face of the cell. There is an included angle between the end face and side face of the cell. In this way, the circuit board and the multiple electrical connectors are disposed in different planes, which avoids the concentration of heat generation when the circuit board and the electrical connectors are working, and ensures the normal operation of the battery pack.

[0066] It should be noted that, Figures 1 to 10 The diagram illustrates a simplified representation of the integrated busbar assembly, cell module, and various components within the battery pack. The specific structures of the remaining components in the integrated busbar assembly, cell module, and battery pack are not limited to these details. Figures 1 to 10 of examples.

[0067] 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:

[0068] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, this application embodiment provides an integrated busbar assembly for a cell busbar 100. In one example, the number of cell busbars 100 can be multiple. Multiple cell busbars 100 can be connected in series, parallel, or a series-parallel connection. The cell busbar 100 includes multiple arranged cell cells 200, with the positive and negative terminals of each cell cell 200 located at the same end. Specifically, the cell cell 200 can be a cylindrical cell or a prismatic cell; this application embodiment uses a cylindrical cell for illustration.

[0069] Here, the cell array 100 includes multiple cells 200. Each cell 200 has two end faces and cylindrical sides. The attached figure shows multiple cells 200 with their sides abutting each other and arranged laterally to form the cell array 100. (Refer to...) Figure 9 As shown, the positive and negative terminals of the battery cell 200 are located at the same end of the battery cell 200, and Figure 1 value Figure 4 The diagram shows two cell arrays 100 stacked in an alternating manner. The two cell arrays 100 can be stacked vertically, horizontally, or multiple cell arrays 100 can be arranged. This application embodiment does not impose specific restrictions on the arrangement of adjacent cell arrays 100.

[0070] Continue to refer to Figures 1 to 4 As shown, the integrated busbar assembly includes: a circuit board component 300, multiple electrical connectors 400, and multiple first acquisition components 500.

[0071] Electrical connector 400 is used to electrically connect two adjacent battery cells 200.

[0072] The first acquisition element 500 corresponds one-to-one with the electrical connector 400. The first acquisition element 500 is set on the electrical connector 400 to acquire the first parameter value of the electrical connector 400.

[0073] Each first acquisition unit 500 is electrically connected to the circuit board 300 to transmit the first parameter value to the battery management system via the circuit board 300.

[0074] Each electrical connector 400 is disposed on one of the end face and side face of the battery cell 200, and the circuit board 300 is disposed on the other of the end face and side face of the battery cell 200.

[0075] Specifically, refer to Figure 3 and Figure 4 As shown, the end face of the battery cell 200 is the first plane, and the side face of the battery cell 200 is the second plane. When the battery cell 200 is a cylindrical battery cell, the second plane is the cross-section of the side face of the cylindrical battery cell.

[0076] The first plane and the second plane are set at an angle.

[0077] In the specific implementation of the above embodiments, the electrical connector 400 is used to sequentially connect two adjacent cells 200 within the same cell array 100. One end of the electrical connector 400 is connected to the positive terminal of one cell 200, and the other end is connected to the negative terminal of the other cell 200. Of course, the electrical connector 400 is also used to connect cells 200 at the ends of different cell arrays 100 in series, as described above. Figure 4 As shown, the electrical connector 400 can also connect the cells 200 at the ends of the upper cell array 100 and the lower cell array 100 in series. The number of electrical connectors 400 needs to be selected according to actual design requirements, and the specific number of electrical connectors 400 is not limited in this embodiment.

[0078] To facilitate the connection between the electrical connector 400 and the battery cell 200, the electrical connector 400 is arranged in the first plane where the end of the battery cell 200 is located.

[0079] Reference Figure 4 , Figure 5 and Figure 6 As shown, the first acquisition element 500 is disposed on the corresponding electrical connector 400 to acquire the first parameter value of the electrical connector 400. Here, the first acquisition element 500 can be a current sensor or a voltage sensor. The electrical connector 400 is connected in series with two adjacent battery cells 200. The first parameter value of the electrical connector 400 acquired by the first acquisition element 500 can be the current value or voltage value within the electrical connector 400. This part is prior art in the relevant field, and the embodiments of this application do not impose specific limitations on the first parameter value.

[0080] The first data acquisition unit 500 transmits the first parameter value to the battery management system via the circuit board 300. Here, the battery management system can be the vehicle's battery management system or the battery pack's battery management system. In related technologies, the battery management system can monitor and manage the battery pack, ensuring its safe and efficient operation under various operating conditions. This application embodiment does not limit the battery relationship system.

[0081] The circuit board component 300 is disposed on the second plane. By setting the first plane and the second plane at an angle, the circuit board component 300 and multiple electrical connectors 400 are disposed in different planes. When the circuit board component 300 and the electrical connectors 400 are working, heat concentration is avoided, ensuring the normal operation of the battery pack.

[0082] Specifically, circuit board 300 is a flexible printed circuit board, also known as an FPC board. It is a type of printed circuit board with high reliability and flexibility, made of polyimide or polyester film as the substrate. It features high wiring density, light weight, thinness, and good bending performance. By setting up an FPC board, less internal space can be occupied in the battery pack, reducing the number of internal wiring harnesses, improving space utilization, and indirectly increasing the energy density of the battery pack.

[0083] Continue to refer to Figure 3 and Figure 4 As shown, in the specific implementation of the above embodiment, multiple electrical connectors 400 are arranged in the plane containing the end face of the battery cell 200. That is, the first plane coincides with or is parallel to the end face of the battery cell 200, and the circuit board 300 is disposed on the cross-section of the side surface of the battery cell 200. That is, the second plane coincides with or is parallel to the cross-section of the side surface of the battery cell 200. Thus, the included angle between the first plane and the second plane is 90 degrees. On the one hand, this avoids the heat concentration generated by the circuit board 300 and the electrical connectors 400 during operation. On the other hand, it makes full use of the space containing the end and side surfaces of the battery cell 200, improving the space utilization rate of the battery pack.

[0084] In one possible implementation, refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the electrical connector 400 includes a plate 410, on which a first connecting portion 420 and a second connecting portion 430 are provided.

[0085] The board 410 is disposed between two battery cells 200. Specifically, the board 410 is disposed at the end face of two adjacent battery cells 200.

[0086] The first connection part 420 is used for electrical connection with the positive or negative terminal of one of the battery cells 200.

[0087] The second connection part 430 is used for electrical connection with the negative or positive terminal of another cell 200.

[0088] The first acquisition component 500 is set on the plate 410.

[0089] The first connecting part 420 and the second connecting part 430 are both provided on the periphery of the plate 410 and extend in a direction away from the plate 410.

[0090] Thus, by setting the first connecting part 420 and the second connecting part 430, the electrical connector 400 can connect two adjacent battery cells 200 in series. It should be noted that connecting the first connecting part 420 and the second connecting part 430 to the positive or negative terminal of the battery cell 200 is prior art in the relevant field. It is only necessary to complete the electrical connection of the first connecting part 420 to the positive or negative terminal of the battery cell 200 and the electrical connection of the second connecting part 430 to the negative or positive terminal of the battery cell 200.

[0091] Furthermore, the electrical connector 400 is one of a copper connector, an aluminum connector, or a copper-aluminum composite connector. Also, the plate 410, the first connecting portion 420, and the second connecting portion 430 are integrally formed.

[0092] In related technologies, the positive electrode of the battery cell 200 is positioned higher than the negative electrode. Therefore, a bending portion 440 is provided on the plate 410. By providing the bending portion 440, the situation where the positive electrode of the battery cell 200 is positioned higher than the negative electrode is avoided, so that the first connecting portion 420 and the second connecting portion 430 can be smoothly connected to the battery cell 200.

[0093] In specific implementation, refer to Figure 7 and Figure 8 As shown, Figure 7 The electrical connector 400 shown is used to connect two adjacent cells 200 in the same cell block 100. Figure 8 The electrical connector 400 shown is used to connect the cells 200 at the ends of different cell arrays 100. It is understood that the specific arrangement of the first connection part 420 and the second connection part 430 on the plate 410 can be selected according to actual needs to improve the adaptability of the electrical connector 400.

[0094] In another possible implementation, the first acquisition element 500 includes an acquisition piece 510 and an acquisition line 520.

[0095] The acquisition chip 510 is mounted on the board 410 and electrically connected to the circuit board 300 via the acquisition cable 520. In practice, the acquisition chip 510 is adhered to the board 410.

[0096] Reference Figure 4 , Figure 5 and Figure 6 As shown, by setting the acquisition piece 510 to be bonded to the plate 410, the acquisition piece 510 and the plate 410 can be quickly connected. At the same time, it helps to increase the contact area between the acquisition piece 510 and the plate 410, thereby improving the accuracy of the acquisition piece 510 in acquiring the first parameter value of the electrical connector 400.

[0097] Specifically, the sampling piece 510 is a nickel sheet. Nickel sheets have high corrosion resistance, as well as good strength and ductility, making it relatively easy to manufacture the sampling piece 510.

[0098] In one possible implementation, the first collecting element 500 further includes a first insulating pad 530.

[0099] The first insulating pad 530 is disposed on the board 410. When the acquisition line 520 is laid on the board 410, the first insulating pad 530 is disposed between the acquisition line 520 and the board 410. In specific implementation, the first insulating pad 530 is adhered to the board 410.

[0100] What is understandable is that, referring to Figures 3 to 6 As shown, when there are at least two battery cell arrays 100, the circuit board 300 is disposed on the side of the upper battery cell array 100. When the first acquisition element 500 on the board body 410 of the upper battery cell array 100 is electrically connected to the circuit board 300, it can be directly bent and extended to the circuit board 300 through the acquisition line 520 to be electrically connected to the circuit board 300. When the acquisition line 520 of the first acquisition element 500 on the board body 410 of the lower battery cell array 100 is electrically connected to the circuit board 300, the laying path of this acquisition line 520 needs to cross the upper board. By setting the first insulating pad 530 and placing the first insulating pad 530 between the acquisition line 520 and the board, the safety of the acquisition line 520 can be improved.

[0101] In practice, during the laying process, the acquisition line 520 on the plate 410 of the lower cell array 100 needs to pass through the gap between the upper and lower cell arrays 100. To improve the safety of the acquisition line 520 at this location, a second insulating pad 540 is also included. The second insulating pad 540 is placed between two adjacent cell arrays 100. When the acquisition line 520 is laid between two adjacent cell arrays 100, the second insulating pad 540 is placed between the acquisition line 520 and the cell array 100.

[0102] To further enhance the safety of the integrated busbar assembly, an insulating plate 600 is also included. The projection of the cell busbar 100 toward the insulating plate 600 is located inside the insulating plate 600, or, in other words, the projection of the insulating plate 600 toward the cell busbar 100 is located outside the cell busbar 100. The insulating plate 600 is disposed between the cell busbar 100 and the electrical connector 400.

[0103] The insulating plate 600 has multiple clearance grooves 610, which are used to avoid the electrical connection points between the electrical connector 400 and the battery cell 200.

[0104] In this way, by setting an insulating plate 600 between the cell array 100 and the electrical connector 400, the projection of the cell array 100 toward the insulating plate 600 is located within the insulating plate 600. Furthermore, by setting a clearance groove 610 to avoid the electrical connection point between the electrical connector 400 and the cell 200, it is possible to ensure that the electrical connector 400 is connected to the cell 200 while preventing short circuits between other parts of the electrical connector 400 and the cell 200. Specifically, the insulating plate 600 is set between the plate 410 and the cell 200. The first connecting part 420 and the second connecting part 430 are used to pass through the clearance groove 610 and make electrical connections with the positive or negative pole of the cell 200.

[0105] In another possible implementation, at least one second acquisition element 700 is also included.

[0106] The second acquisition element 700 is adhered to the insulating plate 600 and electrically connected to the circuit board 300 to acquire the second parameter value of the insulating plate 600.

[0107] It should be noted that one side of the insulating plate 600 abuts against the end face of the battery cell 200, and the other side abuts against the plate body 410 of the electrical connector 400. When the battery cell 200 and the plate body 410 of the electrical connector 400 are working, they will generate electric heat. This electric heat will be transferred to the insulating plate 600 through heat conduction. By setting at least one second acquisition element 700 on the insulating plate 600, the second parameter value of the insulating plate 600 can be acquired. Specifically, the first parameter value is at least one of the voltage value and the current value, and the second parameter value is the temperature value.

[0108] The first acquisition element 500 is at least one of a current sensor and a voltage sensor. The second acquisition element 700 can be a temperature sensor, and the second parameter value can be a temperature value. This temperature value is transmitted to the battery management system through the circuit board 300, so that the battery management system can indirectly obtain the temperature value at the end of the cell 200.

[0109] In the specific implementation of the above embodiments, the second acquisition element 700 can be set to at least three, with the three second acquisition elements 700 respectively set at both ends and the midpoint of the insulating plate 600. This facilitates the battery management system to obtain the second parameter value more accurately.

[0110] In another possible implementation, the number of circuit board components 300 is set to multiple, with each circuit board component 300 corresponding to a different cell array 100.

[0111] The electrical connector 400, which is electrically connected to the same cell array 100, is electrically connected to the corresponding circuit board 300 through the first acquisition element 500.

[0112] In this way, by setting up multiple circuit boards 300, different cell rows 100 can be partitioned, which facilitates the detection of the first parameter value of the cell 200 in different cell rows 100, and facilitates the battery management system to control different cell rows 100.

[0113] Reference Figure 10 As shown, it also includes an adapter 800, which has a male terminal 810 for connecting to the female terminal 910 of the slave board 900 in the battery management system. Here, the slave board 900 is prior art in the relevant field, and this application embodiment does not limit it. The circuit board 300 is electrically connected to the adapter 800, and the adapter 800 is connected to the battery pack frame 920. By setting the adapter 800 and quickly connecting it to the battery management system, the circuit board 300 and the battery management system are indirectly connected quickly. At the same time, the connection between the adapter 800 and the battery pack frame 920 provides necessary support points for the circuit board 300, thereby improving the stability of the circuit board 300.

[0114] This application also provides a battery cell module, including at least two cell busbars 100 and at least one of the aforementioned integrated busbar assemblies. The cell busbars 100 are connected to the integrated busbar assemblies.

[0115] The specific structure of the integrated busbar assembly has been clearly explained above and will not be repeated here. By setting the battery cell module with the aforementioned integrated busbar assembly, the integrated busbar assembly is placed on different sides of the battery cell module. On the one hand, it can make full use of the space on different sides of the battery cell module and improve space utilization. On the other hand, since the electronic components are placed on different sides of the battery cell module, heat generation is avoided and does not affect the detection of current, voltage or temperature.

[0116] In practice, the battery cell module also includes a frame, with the battery cell busbar and integrated busbar assembly both housed within the frame.

[0117] This application embodiment also provides a battery pack, including a frame 920 and at least one of the above-mentioned cell modules disposed within the frame 920, which can avoid heat concentration in the battery pack.

[0118] The implementation principle of an integrated busbar assembly, cell module, and battery pack provided in this application embodiment is as follows: In this technical solution, the integrated busbar assembly includes a circuit board 300, multiple electrical connectors 400, and multiple first acquisition units 500. The electrical connectors 400 are used to electrically connect two adjacent cells 100. The first acquisition units 500 are correspondingly disposed on the electrical connectors 400 to collect the first parameter values ​​of the electrical connectors 400. Each first acquisition unit 500 is electrically connected to the circuit board 300 to transmit the first parameter values ​​to the battery management system through the circuit board 300. Each electrical connector 400 is disposed on one of the end face and side face of the cell 100, and the circuit board 300 is disposed on the other of the end face and side face of the cell 100. There is an included angle between the end face and side face of the cell 100. In this way, the circuit board 300 and the multiple electrical connectors 400 are disposed in different planes. When the circuit board 300 and the electrical connectors 400 are working, heat concentration is avoided, ensuring the normal operation of the battery pack.

[0119] 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.

[0120] 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.

[0121] 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. An integrated busbar assembly for a cell busbar (100), the cell busbar (100) comprising a plurality of cells (200), characterized in that, include: Circuit board (300), multiple electrical connectors (400) and multiple first acquisition units (500); The electrical connector (400) is used to electrically connect two adjacent battery cells (200); The first acquisition element (500) is correspondingly disposed on the electrical connector (400) to acquire the first parameter value of the electrical connector (400); Each of the first acquisition units (500) is electrically connected to the circuit board (300) to transmit the first parameter value to the battery management system through the circuit board (300); Each of the electrical connectors (400) is disposed on one of the end face and the side face of the battery cell (200); The circuit board (300) is disposed on the other of the end face and side face of the battery cell (200).

2. The integrated busbar assembly according to claim 1, characterized in that, The electrical connector (400) includes a plate (410), on which a first connecting part (420) and a second connecting part (430) are provided; The plate (410) is disposed between two adjacent battery cells (200); The first connecting part (420) is used to electrically connect to one of the two adjacent battery cells (200); The second connection part (430) is used for electrical connection with another of the two adjacent battery cells (200); The first acquisition element (500) is disposed on the plate (410) for acquiring the first parameter value of the plate (410).

3. The integrated busbar assembly according to claim 2, characterized in that, The first acquisition device (500) includes an acquisition chip (510) and an acquisition cable (520); The acquisition chip (510) is disposed on the board body (410) and electrically connected to the circuit board (300) through the acquisition line (520).

4. The integrated busbar assembly according to claim 3, characterized in that, The first collecting element (500) also includes a first insulating pad (530); The first insulating pad (530) is disposed on the plate (410) and between the acquisition line (520) and the plate (410).

5. The integrated busbar assembly according to claim 3, characterized in that, It also includes a second insulating pad (540); The second insulating pad (540) is disposed between two adjacent battery cell arrays (100), and the second insulating pad (540) is disposed between the acquisition line (520) and the battery cell array (100).

6. The integrated busbar assembly according to any one of claims 1 to 5, characterized in that, It also includes an insulating board (600); The projection of the insulating plate (600) toward the cell bar (100) is located outside the cell bar (100), and the insulating plate (600) is disposed between the cell bar (100) and the electrical connector (400); The insulating plate (600) has a plurality of clearance grooves (610) for avoiding the electrical connection point between the electrical connector (400) and the battery cell (200).

7. The integrated busbar assembly according to claim 6, characterized in that, It also includes at least one second acquisition element (700); The second acquisition element (700) is disposed on the insulating plate (600) and electrically connected to the circuit board (300) to acquire the second parameter value of the insulating plate (600).

8. The integrated busbar assembly according to claim 7, characterized in that, The first parameter is at least one of voltage and current values, and the second parameter is a temperature value.

9. A battery cell module, characterized in that, It includes at least two cell busbars (100) and at least one integrated busbar assembly as described in any one of claims 1 to 8; The cell busbar (100) is connected to the integrated busbar assembly.

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

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