A battery module and electrical equipment

Abstract

The present application provides a battery module and an electrical device, the battery module comprising a cell assembly and a connection assembly, the cell assembly comprising at least two cell sub-components spaced apart along a first direction, each cell sub-component comprising a plurality of cells stacked along a second direction; the connection assembly is arranged on one side of the cell assembly, comprising a plurality of first connection rows and a plurality of second connection rows, the first connection row being used to connect two adjacent cell sub-components, the second connection row being used to connect two adjacent cells, one end of the first connection row being directly connected to a cell in one cell sub-component, and the other end of the connection row being directly connected to a cell in another adjacent cell sub-component, by integrating the first connection row and the second connection row into the connection assembly, thereby omitting the jumper functional parts additionally arranged in the related art, reducing the number of components inside the battery module, thereby optimizing the functional integration within the battery module, and improving the assembly efficiency of the battery module.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery module and electrical equipment. Background Art

[0002] New energy vehicles have a large demand for battery power and high requirements for battery quality, so batteries are crucial for new energy vehicles; in order to meet the demand for large-capacity batteries in new energy vehicles, battery modules are usually used for power supply in related technologies. A battery module refers to a battery cell combination that is connected in series and / or in parallel and is equipped with a protective circuit board and casing to directly supply power.

[0003] An integrated connection bar design is often used in related technologies to connect multiple battery cells in series and / or in parallel as required, thereby forming a voltage and capacity output that meets the requirements. However, the design of integrated connection bars in current related technologies faces technical challenges such as low functional integration, insufficient space utilization, difficulty in optimizing production efficiency and cost, and poor temperature collection reliability, which limits the performance improvement and industrialization efficiency of the battery system. Summary of the invention

[0004] The embodiments of the present application provide a battery module and an electrical device to solve or at least partially solve the deficiencies of the above-mentioned background technology.

[0005] In a first aspect, an embodiment of the present application provides a battery module, comprising:

[0006] A battery cell assembly, comprising at least two battery cell sub-components spaced apart along a first direction, each of the battery cell sub-components comprising a plurality of battery cells stacked along a second direction;

[0007] A connection assembly is arranged on one side of the battery cell assembly, the connection assembly comprises a plurality of first connection rows and a plurality of second connection rows, the first connection rows are used to connect two adjacent battery cell components, and the second connection rows are used to connect two adjacent battery cells;

[0008] One end of the first connection row is directly connected to a cell in one of the cell components, and the other end of the first connection row is directly connected to a cell in another adjacent cell component.

[0009] In one embodiment, the first connection row includes a connection body and a plurality of connection sub-components, one of the connection sub-components is arranged corresponding to one of the battery cell sub-components, and one end of the connection sub-component is connected to the connection body, and the other end of the connection sub-component is directly connected to the battery cell of the battery cell sub-component.

[0010] In one embodiment, a plurality of adjacent battery cells in any of the battery cell components form a battery cell group;

[0011] The battery module further includes a monitoring component, the monitoring component includes a plurality of first sensors, one first sensor is provided corresponding to one battery cell group, and the first sensor is provided on the top of any battery cell in the battery cell group;

[0012] The first sensor is used to obtain first operating data of the battery cell, and the first operating data includes temperature data.

[0013] In one embodiment, the monitoring component further includes a heat conductive part, which is disposed between the first sensor and the battery cell assembly, and one end of the heat conductive part is in contact with the battery cell, and the other end of the heat conductive part is in contact with the first sensor.

[0014] In one embodiment, the monitoring assembly includes a plurality of mounting brackets, the mounting brackets are arranged on the top of the battery core component, and one mounting bracket is arranged corresponding to one first sensor;

[0015] Wherein, the mounting bracket includes a first accommodating groove, the first accommodating groove is communicated with the battery core, and the first sensor is arranged in the first accommodating groove.

[0016] In one embodiment, the monitoring assembly further comprises a plurality of mounting plates, one mounting plate is provided corresponding to one of the battery core components, the mounting plate is located on the top of the battery core component, and the mounting plate is provided with a plurality of first mounting grooves, one of the first mounting grooves is provided corresponding to one of the mounting brackets;

[0017] Wherein, the mounting bracket is arranged in the first mounting groove, and the mounting bracket is fixedly connected to the mounting plate.

[0018] In one embodiment, the mounting bracket includes a base and a raised portion, the base is disposed between the mounting plate and the battery cell assembly, the raised portion extends from the base toward the first mounting groove, and the raised portion is located in the first mounting groove, and the raised portion includes the first receiving groove;

[0019] Wherein, the base is fixedly connected to the mounting plate, and the protrusion is spaced apart from the inner wall of the first mounting groove.

[0020] In one embodiment, a first thermal rivet hole is formed on the mounting plate, and a first thermal rivet column is disposed on the base. The first thermal rivet column is disposed corresponding to the first thermal rivet hole, and the first thermal rivet column is inserted into the first thermal rivet hole.

[0021] In one embodiment, the monitoring component further comprises:

[0022] A transmission port is arranged on the other side of the battery cell assembly;

[0023] A collection harness is arranged on a side of the mounting plate away from the battery core sub-component, the collection harness comprises a plurality of first collection wires and a plurality of second collection wires, one end of one of the first collection wires corresponds to and is connected to one of the first sensors, the other end of one of the first collection wires is connected to the transmission port, one end of one of the second collection wires corresponds to and is connected to one of the connecting sub-components, and the other end of one of the second collection wires is connected to the transmission port of the monitoring component;

[0024] The second acquisition line is used to obtain second operating data of the battery cell, and the second operating data includes voltage data.

[0025] In one embodiment, the second connection row includes a plurality of connection sheets, one of the connection sheets is located between two adjacent battery cells, one end of the connection sheet is connected to one of the battery cells, and the other end of the connection sheet is connected to another of the battery cells;

[0026] The mounting plate is provided with a plurality of second mounting grooves, the plurality of second mounting grooves are arranged on both sides of the collection harness, and one second mounting groove is arranged corresponding to one connecting piece, and the connecting piece is arranged in the second mounting groove;

[0027] The collection harness further includes a plurality of third collection lines, one end of each of the third collection lines corresponds to and is connected to one of the connecting pieces, and the other end of each of the third collection lines is connected to the transmission port of the monitoring component;

[0028] The third acquisition line is used to obtain second operating data of the battery cell, and the second operating data includes voltage data.

[0029] In one embodiment, a plurality of second thermal rivet studs are disposed on the mounting plate, a plurality of second thermal rivet holes are opened on the connecting plate, one second thermal rivet stud is disposed corresponding to one second thermal rivet hole, and the second thermal rivet stud is inserted into the second thermal rivet hole.

[0030] In one embodiment, the monitoring component includes a plurality of nickel sheets, one of the nickel sheets is provided corresponding to one of the connecting sub-components, one end of the nickel sheet is fixedly connected to the connecting sub-component, and the other end of the nickel sheet is fixedly connected to the second acquisition line;

[0031] Wherein, a second receiving groove is opened on the connecting sub-component, and at least a part of the nickel sheet is arranged in the second receiving groove.

[0032] In the second aspect, an embodiment of the present application provides an electric device, comprising the battery module described in any one of the above embodiments.

[0033] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a battery module and an electrical device, the battery module comprising a cell assembly and a connection assembly, the cell assembly comprising at least two cell sub-components spaced apart along a first direction, each of the cell sub-components comprising a plurality of cell stacked along a second direction; the connection assembly is arranged on one side of the cell assembly, the connection assembly comprising a plurality of first connection rows and a plurality of second connection rows, the first connection row being used to connect two adjacent cell sub-components, and the second connection row being used to connect two adjacent cell sub-components; wherein one end of the first connection row is directly connected to a cell in one of the cell sub-components, and the other end of the connection row is directly connected to a cell in another adjacent cell sub-component, and by integrating the first connection row and the second connection row into the connection assembly, the jumper functional parts additionally arranged in the related art are omitted, the number of components inside the battery module is reduced, and the functional integration within the battery module is optimized, the assembly efficiency of the battery module is improved, and labor costs are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution in this embodiment, the drawings required for use in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the structure of a battery module provided in an embodiment of the present application;

[0036] Figure 2 An exploded schematic diagram of a battery module provided in an embodiment of the present application;

[0037] Figure 3 A schematic top view of the assembled connection assembly and monitoring assembly provided in an embodiment of the present application;

[0038] Figure 4 A bottom view schematic diagram of the connection assembly and the monitoring assembly provided in the embodiment of the present application after being assembled;

[0039] Figure 5 A schematic diagram of the first connecting row structure provided in an embodiment of the present application;

[0040] Figure 6 A schematic diagram of the structure of the first sensor and the mounting bracket after being assembled according to an embodiment of the present application;

[0041] Figure 7 A schematic top view of the first sensor and the mounting bracket after being assembled provided in an embodiment of the present application;

[0042] Figure 8 The embodiments of the present application provide Figure 3 The enlarged schematic diagram of point A in the middle;

[0043] Fig. 9 The embodiments of the present application provide Figure 4 A magnified schematic diagram of point B in the middle.

[0044] Description of reference numerals:

[0045] 1-battery module; 11-box; 12-cell assembly; 13-connection assembly; 14-monitoring assembly; 111-bottom plate; 112-side plate; 113-accommodation chamber;

[0046] 120-battery cell group; 121-battery cell sub-component; 1211-battery cell; 1211-first battery cell sub-component; 1212-first battery cell sub-component; 1213-third battery cell sub-component; 1214-fourth battery cell sub-component; 12111-first battery cell; 12121-second battery cell; 12131-third battery cell; 12141-fourth battery cell;

[0047] 131-first connection row; 132-second connection row; 133-first output row; 134-second output row; 135-third connection row; 1311-connection body; 1312-connection sub-component; 1313-cloth-based tape; 13111-insulating film; 13121-second receiving groove; 13122-fourth hot riveting hole; 13123-fifth hot riveting hole; 1321-connecting piece; 13211-positioning mark; 13212-second hot riveting hole; 1321A-first connection piece; 1321A1-third hot riveting hole;

[0048] 141-first sensor; 142-mounting bracket; 143-heat conducting part; 144-mounting plate; 145-transmission port; 146-collection harness; 147-nickel sheet; 1421-first receiving groove; 1422-base; 1423-raised part; 14211-first through hole; 14221-first thermal rivet column; 14222-second exhaust hole; 1441-first mounting groove; 1442-first thermal rivet hole; 1443-first exhaust hole; 1444-second mounting groove; 1445-second thermal rivet column; 1446-third thermal rivet column; 1461-first collection line; 1462-second collection line; 1463-third collection line. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0050] Please combine Figure 1 , Figure 2 , Figure 3 and Figure 4 ;in, Figure 1 A schematic diagram of the structure of a battery module provided in an embodiment of the present application; Figure 2 An exploded schematic diagram of a battery module provided in an embodiment of the present application;

[0051] Figure 3 A schematic top view of the assembled connection assembly and monitoring assembly provided in an embodiment of the present application; Figure 4 A bottom view schematic diagram of the assembled connection assembly and monitoring assembly provided in an embodiment of the present application.

[0052] It should be noted that in Figure 2 In the embodiment, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction; wherein the first direction X, the second direction Y, and the third direction Z are perpendicular to each other, Figure 3 It may also be a front view schematic diagram of the connection component and the monitoring component after being assembled along the third direction Z; Figure 4 It may also be a front view schematic diagram of the connection component and the monitoring component after being assembled along the opposite direction of the third direction Z.

[0053] In one embodiment, the battery module 1 includes a box body 11, a battery cell assembly 12 and a connecting assembly 13; the box body 11 includes a bottom plate 111 and multiple side plates 112 connected to each other, and the bottom plate 111 and the multiple side plates 112 enclose a accommodating cavity 113 with a first port; it should be noted that this embodiment takes the box body 11 including four side plates 112 as an example to illustrate the technical solution of the present application.

[0054] The battery cell assembly 12 is arranged in the accommodating cavity 113, and the battery cell assembly 12 includes at least two battery cell components 121 arranged at intervals along the first direction X, and each of the battery cell components 121 includes a plurality of battery cells 1211 stacked along the second direction Y, and the plurality of battery cells 1211 are arranged in series, and the battery cells 1211 include but are not limited to square battery cells 1211; it should be noted that this embodiment does not limit the number of the battery cells 1211 in one battery cell component 121, and one battery cell component 121 may include two, three, four, five or more battery cells 1211, and the specific number can be flexibly adjusted according to the voltage and capacity requirements, module design requirements and space limitations in actual application scenarios.

[0055] The connecting component 13 is arranged on one side of the battery cell component 12, and the connecting component 13 includes a plurality of first connecting rows 131 and a plurality of second connecting rows 132, wherein the first connecting row 131 is used to connect two adjacent battery cell components 121, and the second connecting row 132 is used to connect two adjacent battery cells 1211; wherein, one end of the first connecting row 131 is directly connected to the battery cell 1211 in one of the battery cell components 121, and the other end of the first connecting row 131 is directly connected to the battery cell 1211 in another adjacent battery cell component 121.

[0056] It should be noted that, in the related art, additional jumper rows or jumper functional components are usually provided to realize the jumper function between adjacent battery cell components; wherein, the jumper rows or jumper functional components will increase the number of parts inside the battery module, resulting in a complicated structure and reduced assembly efficiency, thereby adversely affecting the overall energy density of the battery module.

[0057] It can be understood that, in this embodiment, the first connecting row 131 and the second connecting row 132 are integrated into the connecting component 13, and the first connecting row 131 and the second connecting row 132 are respectively used to connect adjacent battery cells 1211 or the battery cell components 121 in series and / or in parallel, thereby omitting the jumper functional parts additionally provided in the related art, reducing the number of components inside the battery module 1, optimizing the functional integration within the battery module 1, improving the assembly efficiency of the battery module 1, and saving labor costs.

[0058] Please combine Figure 1 , Figure 2 , Figure 3 and Figure 5 ;in; Figure 5 This is a schematic diagram of the first connecting row structure provided in an embodiment of the present application.

[0059] In one embodiment, the first connection row 131 includes a connection body 1311 and a plurality of connection sub-components 1312, and one connection sub-component 1312 is provided corresponding to one battery cell sub-component 121, and one end of the connection sub-component 1312 is connected to the connection body 1311, and the other end of the connection sub-component 1312 is directly connected to the battery cell 1211 of the battery cell sub-component 121, thereby optimizing the layout of the first connection row 131 and improving the space utilization efficiency of the electrical box through the combined design of the connection sub-component 1312 and the connection body 1311.

[0060] It should be noted that the battery cell sub-assembly 121 usually needs to separately set the positive output row and the negative output row to realize the power transmission function of each battery cell sub-assembly 121; in the related art, a fixed base is usually set to fix the position of the output pole connection row to ensure that the connection between the output pole connection row and the battery cell is stable and not easy to loosen; wherein, the base 1422 of the output pole connection row requires a certain volume for support and fixation, which may cause the overall size of the battery cell sub-assembly to increase and reduce space utilization; and when multiple battery sub-assemblies are connected in series and / or in parallel, each battery sub-assembly needs to independently set the output pole connection row (positive and negative), which further makes the layout design of the base 1422 more complicated, occupies space and affects assembly efficiency.

[0061] It can be understood that, in this embodiment, the first connecting row 131 is provided to connect adjacent battery cell components 121 in series and / or in parallel, thereby reducing the provision of the output pole connecting row in the related art, making the battery module 1 more compact and improving the overall energy density; at the same time, more space is provided to increase the number of battery cells 1211, thereby improving the assembly efficiency of the battery module 1 and saving labor costs.

[0062] Furthermore, by arranging the connecting sub-components 1312 in one-to-one correspondence with the battery cell sub-components 121, accurate positioning of the first connecting sub-rows and the battery cell sub-components 121 is achieved, thereby improving the efficiency and consistency of the installation process; at the same time, the design of the connecting sub-components 1312 makes the connection between the first connecting row 131 and the battery cell 1211 more stable, reduces the risk of poor contact caused by installation errors, and improves the long-term reliability of the connection between adjacent battery cell sub-components 121.

[0063] The connecting body 1311 and the connecting sub-component 1312 can be integrally formed, thereby simplifying the production process of the connecting component 13, reducing the number of parts and mold requirements, and thereby improving the manufacturing efficiency of the battery module 1; at the same time, the one-piece molding design enhances the integrity and connection reliability of the first connecting row 131, can avoid loose connection problems caused by vibration, thermal expansion or aging, and improves the long-term operation stability of the battery module 1.

[0064] The material of the first connecting bar 131 includes but is not limited to 1060 aluminum; wherein, 1060 aluminum is a high-purity aluminum with good electrical conductivity, ductility and plasticity, and is easy to be processed into connecting bars of complex shapes to meet high-precision processing requirements; further, the H24 heat treatment process can be used to improve the strength of the aluminum material, thereby enhancing the strength of the first connecting bar 131, so that the first connecting bar 131 can withstand current shocks and mechanical stress during operation; at the same time, the 1060 aluminum after H24 heat treatment has good oxidation resistance and corrosion resistance, which can improve the stability of the first connecting bar 131.

[0065] Furthermore, a layer of insulating film 13111 is provided on the outer surface of the connecting body 1311 , and the insulating film 13111 is used to enhance the insulation performance of the connecting body 1311 , avoid safety hazards caused by accidental contact or short circuit, and improve the overall safety and reliability of the first connecting row 131 .

[0066] A cloth-based tape 1313 is provided on the side of the insulating film away from the connecting body 1311, and the connecting body 1311 is fixedly connected to the box body 11 by arranging a wiring harness on the cloth-based tape 1313; wherein, the cloth-based tape 1313 can enhance the mechanical strength of the insulating film 13111 and improve the wear resistance, while facilitating fixation and positioning during the assembly process, thereby further improving the reliability and assembly efficiency of the first connecting row 131.

[0067] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ;in; Figure 6 A schematic diagram of the structure of the first sensor and the mounting bracket after being assembled according to an embodiment of the present application; Figure 7 A schematic top view of the assembled first sensor and mounting bracket provided in an embodiment of the present application.

[0068] In one embodiment, the battery module 1 also includes a monitoring component 14, which is directly connected to each of the battery cells 1211, and is used to monitor the first working data of the battery cells 1211; wherein the first working data is temperature data, and the monitoring component 14 can be a battery monitoring component (Cell Connection System, CCS), which is mainly used for the electrical connection and management of the battery cells 1211 in the battery module 1.

[0069] Specifically, several adjacent battery cell groups 120 in any battery cell sub-assembly 121 form a battery cell group 120, so as to facilitate centralized management and monitoring of multiple battery cells 1211; the monitoring component 14 includes multiple first sensors 141, one first sensor 141 is set corresponding to one battery cell group 120, and the first sensor 141 is set at the top of any battery cell 1211 in the battery cell group 120; wherein, the first sensor 141 is used to obtain the first working data of the battery cell 1211.

[0070] It should be noted that this embodiment does not impose any specific restriction on the number of battery cells 1211 in the battery cell group 120, that is, the design of the battery cell group 120 can be based on the changes in the number and specifications of the battery cells 1211, so that the monitoring component 14 has high versatility and flexibility and can adapt to the needs of different types of battery modules 1.

[0071] The first sensor 141 may be a temperature sensor, and the first working data may be temperature data. The first sensor 141 is disposed at the top of any battery cell 1211 in the battery cell group 120. The first sensor 141 is used to monitor the temperature data of the tops of multiple battery cells 1211 in the battery cell group 120 when they are working, thereby ensuring that the temperature data is collected accurately and can reflect the actual working status of the battery cell 1211.

[0072] At the same time, it can be understood that, compared with each battery cell 1211 being individually equipped with a first sensor 141, which makes the structure of the battery module 1 too complicated and increases the cost, this embodiment combines multiple battery cells 1211 into one battery cell group 120 and sets one first sensor 141 in one battery cell group 120, thereby reducing the number of first sensors 141 in the monitoring component 14, simplifying the design of the battery module 1, and further reducing the cost of the battery module 1.

[0073] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 ;in, Figure 8 The embodiments of the present application provide Figure 3 The enlarged schematic diagram of point A in the middle; Fig. 9 The embodiments of the present application provide Figure 4 A magnified schematic diagram of point B in the middle.

[0074] In one embodiment, the monitoring component 14 includes a plurality of mounting brackets 142, and the mounting brackets 142 are arranged on the top of the battery cell component 121, and one mounting bracket 142 is arranged corresponding to one first sensor 141; wherein, the mounting bracket 142 includes a first accommodating groove 1421, and the first accommodating groove 1421 is connected to the battery cell 1211, and the first sensor 141 is arranged in the first accommodating groove 1421, so that the first sensor 141 can be stably arranged on the top of the battery cell assembly 12, thereby improving the installation method of the first sensor 141 and the reliability of the first working data collection.

[0075] Specifically, when the battery cell 1211 expands due to volume changes caused by internal chemical reactions during the charge and discharge process, it may affect the installation position of the first sensor 141, thereby reducing the reliability of the first working data collection; in this embodiment, the installation bracket 142 is arranged to include a first accommodating groove 1421, and the first accommodating groove 1421 is connected to the battery cell 1211, and the first sensor 141 is arranged in the first accommodating groove 1421, thereby effectively reducing the influence of the expansion of the battery cell 1211 on the position of the first sensor 141, thereby improving the accuracy of the first working data collected by the first sensor 141.

[0076] The materials of the mounting bracket 142 include but are not limited to polypropylene and glass fiber. The polypropylene substrate and 10% of the glass fiber are uniformly mixed, heated to above its melting point, and the material is in a completely molten flowing state and then injected into a mold. The mold contains the shape structure of the mounting bracket 142. After the mold is cooled, the molten material solidifies and forms in the mold to form the final mounting bracket 142. It can be understood that adding 10% of glass fiber to polypropylene can significantly improve the rigidity, tensile strength and dimensional stability of the material, and reduce deformation caused by long-term stress or temperature changes. In addition, glass fiber can effectively improve the fatigue resistance of the material and further enhance the strength of the mounting bracket 142.

[0077] Furthermore, the monitoring component 14 also includes a heat-conducting part 143, which is arranged between the first sensor 141 and the battery cell assembly 12, and one end of the heat-conducting part 143 is in contact with the battery cell 1211, and the other end of the heat-conducting part 143 is in contact with the first sensor 141, so that when the first sensor 141 is a temperature sensor and the first working data is temperature data, the heat-conducting part 143 can serve as a medium to enhance the thermal contact between the battery cell 1211 and the first sensor 141, ensuring that the first sensor 141 can quickly and accurately collect the temperature data of the battery cell 1211, thereby further improving the accuracy of the temperature data.

[0078] Among them, the heat-conducting part 143 can be a heat-conducting glue, which can be arranged between the first sensor 141 and the battery cell 1211, and can also be filled between the first sensor 141 and the inner wall of the first receiving groove 1421. The heat-conducting part 143 can act as a buffer device. When the battery cell 1211 is deformed (such as expanded), the relative position of the first sensor 141 is maintained, the risk of failure in collecting the first working data is reduced, and the reliability of the monitoring component 14 is improved.

[0079] Please continue to combine Figures 1 to 9 In one embodiment, the monitoring component 14 further includes a plurality of mounting plates 144, wherein one mounting plate 144 is arranged corresponding to one of the battery cell components 121, the mounting plate 144 is located at the top of the battery cell component 121, and the mounting plate 144 is provided with a plurality of first mounting grooves 1441, wherein one of the first mounting grooves 1441 is arranged corresponding to one of the mounting brackets 142; wherein the mounting bracket 142 is arranged in the first mounting groove 1441, and the mounting bracket 142 is fixedly connected to the mounting plate 144; thereby, the mounting bracket 142 can be firmly fixed at a predetermined position of the mounting plate 144, and the fixed connection between the mounting bracket 142 and the mounting plate 144 improves the stability of the connection between the monitoring component 14 and the battery cell component 12, so that the monitoring component 14 is not easily loosened or detached due to vibration, impact or expansion of the battery cell 1211.

[0080] Specifically, the mounting bracket 142 includes a base 1422 and a protrusion 1423, the base 1422 is arranged between the mounting plate 144 and the battery cell assembly 12, the protrusion 1423 extends from the base 1422 in a direction close to the first mounting groove 1441, and the protrusion 1423 is located in the first mounting groove 1441, and the protrusion 1423 includes the first accommodating groove 1421; wherein, the base 1422 is fixedly connected to the mounting plate 144, and the protrusion 1423 is spaced apart from the inner wall of the first mounting groove 1441.

[0081] It can be understood that, in this embodiment, by setting the base 1422 to be fixedly connected with the mounting plate 144, it is possible to prevent the mounting bracket 142 from being displaced or loosened due to external force or expansion of the battery cell 1211; wherein, the base 1422 provides a stable basic support, and the first accommodating groove 1421 in the protrusion 1423 is used to install the first sensor 141, which can ensure that the position of the first sensor 141 in the first mounting groove 1441 is accurate and not easy to shift, thereby ensuring that the first sensor 141 maintains good contact with the battery cell 1211, thereby improving the accuracy of the first working data.

[0082] At the same time, the raised portion 1423 is spaced apart from the inner wall of the first mounting groove 1441, which can prevent the mounting bracket 142 from contacting the inner wall of the first mounting groove 1441 and causing additional stress interference, while allowing slight deformation buffering to reduce the impact of vibration on the first sensor 141; and, by setting the mounting bracket 142 in the first mounting groove 1441, the overall thickness dimension of the monitoring component 14 can be reduced, thereby reducing the space occupied by the monitoring component 14 at the top of the battery cell assembly 12, providing a more compact design for the battery module 1.

[0083] Please continue to combine Figures 1 to 9 In one embodiment, a first hot rivet hole 1442 is formed on the mounting plate 144, and a first hot rivet column 14221 is provided on the base 1422. The first hot rivet column 14221 is provided corresponding to the first hot rivet hole 1442, and the first hot rivet column 14221 is inserted into the first hot rivet hole 1442, so that a high-strength, integrated and firm connection can be achieved by using the hot riveting process, and the loosening of the mounting bracket 142 caused by vibration, impact or thermal expansion can be effectively prevented.

[0084] Specifically, when assembling the mounting bracket 142, it is only necessary to insert the first hot rivet column 14221 and the first hot rivet hole 1442 into each other, and then perform hot pressing treatment through hot pressing equipment to fix the mounting bracket 142 in the first mounting groove 1441 of the mounting plate 144 without the need for additional screws or glue, thereby reducing the number of parts and assembly process steps and significantly improving assembly efficiency; at the same time, the plug-in cooperation between the first hot rivet column 14221 and the first hot rivet hole 1442 provides a precise positioning function, ensuring that the mounting bracket 142 is always in the designed fixed position, thereby improving the consistency of the overall assembly.

[0085] It should be noted that, in this embodiment, the first hot rivet hole 1442 is provided on the mounting plate 144, and the first hot rivet column 14221 is provided on the base 1422 for illustration only. In another embodiment, the first hot rivet column 14221 can be provided on the mounting plate 144, and the first hot rivet hole 1442 can be provided on the base 1422; that is, this embodiment does not specifically limit the positions of the first hot rivet hole 1442 and the first hot rivet column 14221.

[0086] In order to better illustrate the innovation of this embodiment, this embodiment takes the example that two of the first heat rivet columns 14221 are provided on the base 1422 and two of the first heat rivet holes 1442 are opened on the mounting plate 144 to illustrate the technical solution of the present application.

[0087] The two first thermal rivet columns 14221 are arranged relatively to each other along the first direction X, and the two first thermal rivet columns 14221 are symmetrically arranged about the center line of the battery cell 1211; it can be understood that, in this embodiment, two first thermal rivet columns 14221 are arranged on the base 1422, and two first thermal rivet holes 1442 are opened on the mounting plate 144, and the first thermal rivet columns 14221 are inserted into the first thermal rivet holes 1442, thereby effectively dispersing the stress of the thermal riveting connection and avoiding local deformation or loosening caused by single-point force; at the same time, the two first thermal rivet columns 14221 are arranged relatively to each other along the second direction Y, ensuring the alignment of the mounting plate 144 and the base 1422, reducing the offset error, and improving the assembly quality.

[0088] At the same time, the two first thermal rivet columns 14221 are symmetrically arranged about the center line of the battery cell 1211, so that the layout of the first thermal rivet holes 1442 of the mounting plate 144 is unified, thereby simplifying the positioning and arrangement of the mounting plate 144 during mold manufacturing. Only one symmetrical side needs to be processed, and the other side can be achieved through mirroring, which greatly improves the consistency and accuracy of the mold. That is, multiple mounting plates 144 can be produced using the same mold, reducing mold design and manufacturing costs.

[0089] Furthermore, a plurality of first exhaust holes 1443 are provided on the mounting plate 144, and one of the exhaust holes corresponds to an explosion-proof valve of the battery cell 1211; wherein, a second exhaust hole is further provided on the bottom plate 111, and one of the second exhaust holes corresponds to and is connected to one of the first exhaust holes 1443; it can be understood that the explosion-proof valve is arranged on the top of the battery cell 1211, and is connected to the external environment through the first exhaust hole 1443 and the second exhaust hole, and the position of the first exhaust hole 1443, the position of the second exhaust hole, and the position of the explosion-proof valve correspond to each other, thereby ensuring that the battery cell 1211 can release pressure in time when an abnormality such as overvoltage or overheating occurs, thereby ensuring the safety of the battery module 1.

[0090] Please continue to combine Figures 1 to 9 In one embodiment, the monitoring component 14 further includes a transmission port 145 and a collection harness 146, wherein the transmission port 145 is disposed on the other side of the battery cell assembly 12; the collection harness 146 is disposed on the side of the mounting plate 144 away from the battery cell sub-component 121, and the collection harness 146 includes a plurality of first collection lines 1461 and a plurality of second collection lines 1462, wherein one end of a first collection line 1461 corresponds to and is connected to a first sensor 141, and the other end of a first collection line 1461 is connected to the transmission port 145, and one end of a second collection line 1462 corresponds to and is connected to a connecting sub-component 1312, and the other end of a second collection line 1462 is connected to the transmission port 145 of the monitoring component 14; wherein the second collection line 1462 is used to obtain the second working data of the battery cell 1211, and the second working data includes voltage data, so as to realize comprehensive monitoring of the working state of the battery cell 1211, and provide real-time data support for the safety and performance optimization of the battery module 1.

[0091] The transmission port 145 can be connected to a battery management system (BMS), which is used to collect, process, and analyze data of the battery cells 1211 and take protective measures as needed. The battery management system integrates the first working data and the second working data from different battery cells 1211, thereby being able to detect potential faults of the battery cells 1211 and promptly issue an alarm or automatically adjust the working status of the battery cells 1211.

[0092] Furthermore, the first mounting groove 1441 includes a first through hole 14211, which connects the first mounting groove 1441 and the external space, and the second acquisition line 1462 is connected to the first sensor 141 through the first through hole 14211, thereby improving the operability of the installation and ensuring that the second acquisition line 1462 can be stably and effectively connected to the first sensor 141; at the same time, by designing the position and shape of the first through hole 14211, it is possible to avoid the second acquisition line 1462 interfering with other components, thereby improving the reliability and efficiency of the overall structural wiring; it can be understood that this embodiment does not impose any specific restrictions on the shape of the first through hole 14211.

[0093] Furthermore, the monitoring component 14 includes a plurality of nickel sheets 147, one of the nickel sheets 147 is arranged corresponding to one of the connecting sub-components 1312, and one end of the nickel sheet 147 is fixedly connected to the connecting sub-component 1312, and the other end of the nickel sheet 147 is fixedly connected to the second acquisition line 1462; wherein, a second accommodating groove 13121 is opened on the connecting sub-component 1312, and at least part of the nickel sheet 147 is arranged in the second accommodating groove 13121, thereby realizing a stable and fixed connection between the second acquisition line 1462 and the connecting sub-component 1312, and reducing the loosening problem caused by mechanical vibration, thermal expansion or long-term use.

[0094] The material of the nickel sheet 147 has good electrical conductivity and corrosion resistance. By conducting signals through it, it is helpful to reduce signal loss and improve transmission accuracy and anti-interference ability. Among them, a second accommodating groove 13121 is opened on the connecting sub-component 1312, and at least part of the nickel sheet 147 is arranged in the second accommodating groove 13121, which can achieve accurate positioning of the nickel sheet 147 and avoid the nickel sheet 147 from being offset or loosened during assembly or use, thereby ensuring its reliable connection with the connecting sub-component 1312 and the second acquisition line 1462; at the same time, at least part of the nickel sheet 147 is embedded in the second accommodating groove 13121, which effectively protects the nickel sheet 147 from the influence of the external environment (such as collision, friction, etc.), thereby extending its service life.

[0095] The shape of the nickel sheet 147 can be U-shaped, and it can be transitionally assembled to the connecting sub-component 1312, which can effectively improve the assembly stability of the nickel sheet 147; wherein, six-point laser welding technology is used to achieve a rigid connection between the nickel sheet 147 and the connecting sub-component 1312, thereby further enhancing the structural firmness and the stability of the electrical performance, and then the second acquisition line 1462 collects the voltage data at the connecting sub-component 1312 through the nickel sheet 147, which can ensure the accuracy and reliability of the voltage signal transmission, and is beneficial for the monitoring component 14 to accurately judge the working status of the battery cell 1211 module.

[0096] Please continue to combine Figures 1 to 9 In one embodiment, the second connection row 132 includes a plurality of connection sheets 1321, one of the connection sheets 1321 is located between two adjacent battery cells 1211, and one end of the connection sheet 1321 is connected to one of the battery cells 1211, and the other end of the connection sheet 1321 is connected to another of the battery cells 1211; the mounting plate 144 is provided with a plurality of second mounting grooves 1444, and the plurality of second mounting grooves 1444 are arranged on both sides of the collection harness 146, and one second mounting groove 1444 corresponds to one The connecting piece 1321 is provided, and the connecting piece 1321 is provided in the second mounting groove 1444; the collection harness 146 also includes a plurality of third collection lines 1463, one end of the third collection line 1463 corresponds to and is connected to one of the connecting pieces 1321, and the other end of the third collection line 1463 is connected to the transmission port 145 of the monitoring component 14; wherein the third collection line 1463 is used to obtain the second working data of the battery cell 1211, and the second working data includes voltage data.

[0097] It can be understood that, in this embodiment, one end of the first acquisition line 1461 is set to correspond to and be connected to the first sensor 141, the other end of the first acquisition line 1461 is connected to the transmission port 145, one end of the second acquisition line 1462 is set to correspond to and be connected to the connecting sub-component 1312, the other end of the second acquisition line 1462 is connected to the transmission port 145 of the monitoring component 14, one end of the third acquisition line 1463 is set to correspond to and be connected to the connecting piece 1321, and the other end of the third acquisition line 1463 is connected to the transmission port 145 of the monitoring component 14, thereby realizing centralized transmission of various types of data, simplifying the arrangement of the acquisition harness 146, and improving data transmission efficiency and stability.

[0098] At the same time, this embodiment integrates multiple first acquisition lines 1461, multiple second acquisition lines 1462 and multiple third acquisition lines 1463 on the mounting plate 144 by means of an integrated acquisition harness 146, further simplifying the structure of the battery module 1, reducing the lateral and longitudinal space occupation of the box body 11, and improving the energy density of the battery module 1; at the same time, the first connecting row 131, the second connecting row 132 and the acquisition harness 146 are integrated on the mounting plate 144 to realize the electrical connection between the battery cells 1211, the electrical connection between the battery cell components 121, and the integrated design of the first working data and the second working data collection of the battery cell 1211, thereby reducing the number of components, optimizing the functional integration within the battery module 1, reducing the assembly complexity of the battery module 1, and thereby improving the industrialization efficiency of the battery module 1.

[0099] Please continue to combine Figures 1 to 9 In one embodiment, a plurality of positioning marks 13211 are provided on one side of the connecting piece 1321 close to the third collecting line 1463, one positioning mark 13211 is provided corresponding to one of the battery cells 1211, and laser engraving is used for processing, so that the connecting piece 1321 can be accurately positioned, which is convenient for the installation and welding of the third collecting line 1463.

[0100] It can be understood that the laser engraving process has the advantages of high precision, non-contact and customizability, which can significantly improve the processing quality, ensure that the third acquisition line 1463 can correctly enter the ultrasonic welding equipment for welding, reduce the possibility of operating errors, improve welding accuracy and efficiency, and further ensure the firmness and reliability of the connection between the third acquisition line 1463 and the connecting piece 1321, avoiding installation offset or functional abnormality due to positioning errors.

[0101] Furthermore, the edge of the connecting piece 1321 may be provided with an inclined edge, or the connecting piece 1321 may be an asymmetric structure; it is understandable that in the related art, the edge shape of the connecting piece 1321 is symmetrical, which may easily lead to installation errors due to confusion of direction during assembly. In this embodiment, by providing an inclined edge on the edge of the connecting piece 1321, workers or machines can quickly identify the correct direction of the connecting piece 1321, thereby reducing assembly time.

[0102] Please continue to combine Figures 1 to 9In one embodiment, a plurality of second hot rivet studs 1445 are provided on the mounting plate 144, and a plurality of second hot rivet holes 13212 are opened on the connecting piece 1321. One second hot rivet stud 1445 is provided corresponding to one second hot rivet hole 13212, and the second hot rivet stud 1445 is inserted into the second hot rivet hole 13212, so that a high-strength, integrated and firm connection can be achieved by using the hot riveting process, and the loosening of the connecting piece 1321 caused by vibration, impact or thermal expansion can be effectively prevented.

[0103] Specifically, the second connection row 132 includes a plurality of first connection pieces 1321A, the first connection piece 1321A is arranged close to the first mounting bracket 142, the first connection piece 1321A is provided with a second hot rivet hole 13212 and a third hot rivet hole 1321A1, one second hot rivet column 1445 is arranged corresponding to one second hot rivet hole 13212, and the second hot rivet column 1445 is inserted into the second hot rivet hole 13212, one third hot rivet hole 1321A1 is arranged corresponding to one first hot rivet hole 1442 and is connected, one first hot rivet column 14221 is inserted into one first hot rivet hole 1442, and the first hot rivet column 14221 passes through the corresponding third hot rivet hole 1321A1; wherein the third hot rivet hole 1321A1 can be designed as a waist-shaped hole, and the first hot rivet column 14221 is spaced apart from the inner wall of the third hot rivet hole 1321A1.

[0104] It can be understood that, in this embodiment, the third heat rivet hole 1321A1 is designed as a waist-shaped hole, thereby providing a certain sliding space, so that when the first heat rivet column 14221 causes material deformation due to temperature changes, the connection structure will not be damaged due to concentrated force, thereby avoiding deformation or stress concentration caused by excessive pressure on the material, thereby improving the reliability and service life of the heat riveting connection.

[0105] The mounting plate 144 is also provided with a plurality of third heat rivet studs 1446, and the connecting sub-component 1312 is provided with a plurality of fifth heat rivet holes 13123. One third heat rivet stud 1446 is provided corresponding to one fifth heat rivet hole 13123, and the third heat rivet stud 1446 is inserted into the fifth heat rivet hole 13123, so that a high-strength, integrated and firm connection can be achieved by adopting the heat riveting process, and the loosening of the connecting sub-component 1312 caused by vibration, impact or thermal expansion can be effectively prevented.

[0106] Furthermore, at least one of the first mounting brackets 142 is arranged corresponding to one of the connecting sub-components 1312, and a fourth hot rivet hole 13122 is opened on the connecting sub-component 1312, and the fourth hot rivet hole 13122 is arranged corresponding to and connected to the first hot rivet hole 1442; wherein, in the first mounting bracket 142 arranged corresponding to the connecting sub-component 1312, the first hot rivet column 14221 on the base 1422 is arranged corresponding to the fourth hot rivet hole 13122, the first hot rivet column 14221 is inserted into the first hot rivet hole 1442, and the first hot rivet column 14221 passes through the corresponding fourth hot rivet hole 13122, thereby further improving the connection strength between the connecting sub-component 1312 and the mounting plate 144, and can achieve fast and accurate positioning and fixation, reducing the difficulty of assembly.

[0107] Please continue to combine Figures 1 to 9 In one embodiment, the battery cell assembly 12 includes a first battery cell component 121, a second battery cell component 121, a third battery cell component 121 and a fourth battery cell component 121; the first battery cell component 121 includes a first battery cell 1211, the second battery cell component 121 includes a second battery cell 1211, the third battery cell component 121 includes a third battery cell 1211, the fourth battery cell component 121 includes a fourth battery cell 1211, and the first battery cell 1211, the second battery cell 1211, the third battery cell 1211 and the fourth battery cell 1211 are all located on the side of the battery cell assembly 12 away from the first connecting row 131.

[0108] The connection assembly 13 includes a first output row 133 , a second output row 134 and a third connection row 135 . The first output row 133 , the second output row 134 and the third connection row 135 are all arranged on a side of the battery cell assembly 12 away from the first connection row 131 .

[0109] The first battery cell component 121 and the second battery cell component 121 are connected in series via a first connecting row 131, the third battery cell component 121 and the fourth battery cell component 121 are connected in series via a first connecting row 131, the first output row 133 is connected to one end of the first battery cell 1211, the second output row 134 is connected to one end of the fourth battery cell 1211, one end of the third connecting row 135 is connected to the second battery cell 1211, and the other end of the third connecting row 135 is connected to the third battery cell 1211, so that each of the battery cell components 121 is reasonably connected in series to form a complete circuit; wherein the first output row 133 and the second output row 134 provide positive and negative outputs, thereby completing the power transmission of the battery module 1.

[0110] It can be understood that this embodiment realizes flexible arrangement and combination of the battery cells 1211 through the cooperation of the first connecting row 131, the second connecting row 132 and the third connecting row 135, so as to meet different capacity or voltage requirements, help to improve the standardization of the production process, reduce manufacturing costs, and improve production efficiency.

[0111] An embodiment of the present application provides an electrical device, which includes the battery module described in any of the above embodiments.

[0112] It is understandable that the battery module has been described in detail in the above embodiments and will not be repeated here.

[0113] The electrical equipment includes a battery module, and the battery module is used as a power supply for the electrical equipment. Therefore, the electrical equipment also has the advantages of the above-mentioned battery module, which helps to simplify the overall structure of the electrical equipment; wherein, the electrical equipment can be a car, an aircraft, a mechanical production equipment, etc.

[0114] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A battery module, characterized in that: include: Aluminum jumper bar A battery cell assembly, comprising at least two battery cell sub-components spaced apart along a first direction, each of the battery cell sub-components comprising a plurality of battery cells stacked along a second direction; A connection assembly is arranged on one side of the battery cell assembly, the connection assembly comprises a plurality of first connection rows and a plurality of second connection rows, the first connection rows are used to connect two adjacent battery cell components, and the second connection rows are used to connect two adjacent battery cells; Wherein, one end of the first connection row is directly connected to a battery cell in one of the battery cell components, and the other end of the first connection row is directly connected to a battery cell in another adjacent battery cell component.

2. The battery module according to claim 1, characterized in that: The first connection row includes a connection body and a plurality of connection sub-components, one of the connection sub-components is arranged corresponding to one of the battery core sub-components, one end of the connection sub-component is connected to the connection body, and the other end of the connection sub-component is directly connected to the battery cell of the battery core sub-component.

3. The battery module according to claim 2, characterized in that: A plurality of adjacent battery cells in any of the battery cell components form a battery cell group; The battery module further includes a monitoring component, the monitoring component includes a plurality of first sensors, one first sensor is provided corresponding to one battery cell group, and the first sensor is provided on the top of any battery cell in the battery cell group; The first sensor is used to obtain first operating data of the battery cell, and the first operating data includes temperature data.

4. The battery module according to claim 3, characterized in that: The monitoring component also includes a heat conducting part, which is arranged between the first sensor and the battery core assembly, and one end of the heat conducting part is in contact with the battery core, and the other end of the heat conducting part is in contact with the first sensor.

5. The battery module according to claim 3, characterized in that: The monitoring assembly includes a plurality of mounting brackets, each of which is arranged on the top of the battery core component, and one of the mounting brackets corresponds to one of the first sensors; Wherein, the mounting bracket includes a first accommodating groove, the first accommodating groove is communicated with the battery core, and the first sensor is arranged in the first accommodating groove.

6. The battery module according to claim 5, characterized in that: The monitoring assembly further includes a plurality of mounting plates, one mounting plate is provided corresponding to one of the battery core components, the mounting plate is located on the top of the battery core component, and the mounting plate is provided with a plurality of first mounting grooves, one of the first mounting grooves is provided corresponding to one of the mounting brackets; Wherein, the mounting bracket is arranged in the first mounting groove, and the mounting bracket is fixedly connected to the mounting plate.

7. The battery module according to claim 6, characterized in that: The mounting bracket includes a base and a raised portion, wherein the base is disposed between the mounting plate and the battery cell assembly, the raised portion extends from the base toward the first mounting groove, and the raised portion is located in the first mounting groove, and the raised portion includes the first receiving groove; Wherein, the base is fixedly connected to the mounting plate, and the protrusion is spaced apart from the inner wall of the first mounting groove.

8. The battery module according to claim 7, characterized in that: The mounting plate is provided with a first heat riveting hole, the base is provided with a first heat riveting column, the first heat riveting column is provided corresponding to the first heat riveting hole, and the first heat riveting column is inserted into the first heat riveting hole.

9. The battery module according to claim 6, characterized in that: The monitoring component also includes: A transmission port is arranged on the other side of the battery cell assembly; A collection harness is arranged on a side of the mounting plate away from the battery core sub-component, the collection harness comprises a plurality of first collection wires and a plurality of second collection wires, one end of one of the first collection wires corresponds to and is connected to one of the first sensors, the other end of one of the first collection wires is connected to the transmission port, one end of one of the second collection wires corresponds to and is connected to one of the connecting sub-components, and the other end of one of the second collection wires is connected to the transmission port of the monitoring component; The second acquisition line is used to obtain second operating data of the battery cell, and the second operating data includes voltage data.

10. The battery module according to claim 9, characterized in that: The second connection row includes a plurality of connection sheets, one of the connection sheets is located between two adjacent battery cells, one end of the connection sheet is connected to one of the battery cells, and the other end of the connection sheet is connected to another of the battery cells; The mounting plate is provided with a plurality of second mounting grooves, the plurality of second mounting grooves are arranged on both sides of the collection harness, and one second mounting groove is arranged corresponding to one connecting piece, and the connecting piece is arranged in the second mounting groove; The collection harness further includes a plurality of third collection lines, one end of each of the third collection lines corresponds to and is connected to one of the connecting pieces, and the other end of each of the third collection lines is connected to the transmission port of the monitoring component; The third acquisition line is used to obtain second operating data of the battery cell, and the second operating data includes voltage data.

11. The battery module according to claim 10, characterized in that: The mounting plate is provided with a plurality of second heat rivet studs, the connecting plate is provided with a plurality of second heat rivet holes, one second heat rivet stud is provided corresponding to one second heat rivet hole, and the second heat rivet stud is inserted into the second heat rivet hole.

12. The battery module according to claim 10, characterized in that: The monitoring assembly includes a plurality of nickel sheets, one of the nickel sheets is provided corresponding to one of the connecting sub-components, one end of the nickel sheet is fixedly connected to the connecting sub-component, and the other end of the nickel sheet is fixedly connected to the second acquisition line; Wherein, a second receiving groove is opened on the connecting sub-component, and at least a part of the nickel sheet is arranged in the second receiving groove.

13. An electrical equipment, characterized in that: A battery module comprising the battery module as claimed in any one of claims 1 to 12.

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