Bracket assemblies, wire harness integration assemblies, and battery modules

Abstract

This application discloses a bracket assembly, a wire harness integration assembly, and a battery module. The bracket assembly comprises an insulating plate having a mounting surface and a positioning bracket, the insulating plate having a first relief hole and having two opposing sides along a first direction, the positioning bracket being provided on the side opposite to the mounting surface of the insulating plate and having a second relief hole, the positioning bracket extending along the first direction to the side of the insulating plate, and separating the connection assembly from the end plate by forming a barrier.

Description

Technical Field

[0001] This application claims priority based on Chinese patent applications filed with the Chinese Patent Office on May 30, 2023, with application numbers 202310632239.X and 202321359159.3 respectively, and incorporates herein by reference all the content of the above applications.

[0002] This application relates to the technical field of batteries, and particularly to a bracket assembly, a wire harness integration assembly, and a battery module.

Background Art

[0003] A battery module is a power unit of a new energy power supply system, mainly consisting of components such as cells, a connection assembly, a collection wire harness for signal sampling, and a bracket assembly.

[0004] Among them, a single battery module contains multiple cells, and a connection member is welded to the tip surface of the pole of each cell to achieve series or parallel connection between the cells. The bracket assembly is used to isolate the cells from the connection assembly and the collection wire harness to protect the battery module.

[0005] In related technologies, when the bracket assembly in a battery module attaches and fixes the connection assembly, electrical safety problems are likely to occur between the connection assembly and the end plate in the battery module, resulting in an impact on the performance of the battery module.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention provides a bracket assembly, a wire harness integration assembly, and a battery module that can solve the problem of low electrical safety between a connection assembly attached to a bracket assembly and an end plate in a battery module. [Means for solving the problem]

[0007] To achieve this objective, this application adopts the following technical solution.

[0008] In a first embodiment, an embodiment of the present application provides a bracket assembly configured to mount a battery module, the battery module comprising two end plates facing each other along a first direction, and cells and a connecting assembly electrically connected to each other, the cells located between the two end plates, The bracket assembly is An insulating plate having a mounting surface configured for mounting the aforementioned connection assembly, wherein the insulating plate has a first relief hole provided through the mounting surface, the first relief hole is configured to allow the electrodes of the cell to escape, and the insulating plate has two sides facing each other along a first direction, The positioning bracket is provided on the side of the insulating plate opposite to the mounting surface, wherein a second relief hole is provided through the positioning bracket at a position corresponding to the first relief hole, the positioning bracket extends along the first direction to the side surface of the insulating plate, and a blocking portion is formed on the side surface of the insulating plate to block the connection assembly from the end plate.

[0009] In a second embodiment, the embodiment of the present application provides a wire harness integration assembly used in a battery module, the wire harness integration assembly is A bracket assembly as described in any one of the above paragraphs, A connection assembly provided on the mounting surface of the insulating plate in the bracket assembly and used to electrically connect to the electrodes of the cells in the battery module, The system includes a collection wire harness provided on the mounting surface of the insulating plate and electrically connected to the connection assembly.

[0010] In a third embodiment, the embodiment of the present application provides a battery module, the battery module is, Two end plates arranged in parallel along the first direction, Multiple cells arranged in parallel between the two end plates, The wire-wire harness integrated assembly comprises the following: the electrodes of the cell penetrate a first relief hole and a second relief hole in the wire-wire harness integrated assembly, and the electrodes are electrically connected to a connection assembly in the wire-wire harness integrated assembly. The blocking portion of the positioning bracket in the wire harness integrated assembly is located between the end plate and the first connecting member of the connection assembly. [Effects of the Invention]

[0011] The beneficial effects of this application are as follows: The bracket assembly according to the present invention comprises an insulating plate and a positioning bracket, the insulating plate having a mounting surface for attaching a connection assembly, a first relief hole provided through the mounting surface to allow the electrodes of the cell to escape, and two opposing sides along a first direction, the positioning bracket provided on the side opposite to the mounting surface of the insulating plate, a second relief hole provided through the positioning bracket at a position corresponding to the first relief hole, extending along the first direction to the side of the insulating plate, and a blocking portion formed on the side of the insulating plate to block the connection assembly and the end plate. In the present invention, the positioning bracket extends to the side of the insulating plate and forms a blocking portion on the corresponding side, so that when assembling the battery module, the blocking portion formed on the positioning bracket can separate the connection assembly in the bracket assembly from the end plate in the battery module, thereby increasing the electrical clearance and creepage distance between the connection assembly and the end plate, and further improving the electrical safety of the entire battery module. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic diagram of the configuration of a wire harness integrated assembly according to an embodiment of the present invention. [Figure 2] This is an enlarged schematic diagram of area A in Figure 1 relating to an embodiment of the present application. [Figure 3] This is a schematic diagram of the configuration of a positioning bracket according to an embodiment of the present invention. [Figure 4] This is a schematic diagram of the configuration of a battery module according to an embodiment of the present invention. [Figure 5] This is an enlarged schematic diagram of area B in Figure 4 relating to an embodiment of the present application. [Figure 6] This is an enlarged schematic diagram of the C region in Figure 4 relating to an embodiment of the present application. [Modes for carrying out the invention]

[0013] In the description of this application, unless otherwise explicitly defined and limited, the terms “connected” and “connected” should be understood in a broad sense, for example, a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or an internal communication or interaction relationship between two elements. The specific meaning of the above terms in this application can be understood by those skilled in the art depending on the specific circumstances.

[0014] In the description of this application, unless otherwise explicitly stated and limited, the presence of a first feature "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between them not by direct contact but by another feature between them. The presence of a first feature "above," "above," and "on the top surface" of a second feature may include the first feature being directly above and diagonally above the second feature, or simply indicating that the first feature is taller horizontally than the second feature. The presence of a first feature "below," "below," and "on the bottom surface" of a second feature may include the first feature being directly below and diagonally below the second feature, or simply indicating that the first feature is shorter horizontally than the second feature.

[0015] Embodiments of the present invention provide a bracket assembly, a wire harness integration assembly, and a battery module, each of which is described in detail below. The order of description of the embodiments below is not limited to a preferred order.

[0016] First, an embodiment of the present application provides a bracket assembly for mounting a battery module. The battery module includes two end plates provided opposite to each other along a first direction, and cells and a connection assembly electrically connected to each other. The cells are located between the two end plates. Here, the first direction is the arrangement direction of a plurality of cells in the battery module. When connecting the cells in the battery module in series or in parallel, or collecting signals such as the voltage and temperature of the battery module, it is necessary to provide a bracket assembly above the cells to facilitate the attachment of the connection assembly and the collection wire harness connected to the cells.

[0017] As shown in FIGS. 1 and 2, the bracket assembly 110 includes an insulating plate 111 having a mounting surface 1111 for mounting a connection assembly 120 for connecting a plurality of cells 200 in the battery module 10 in series or in parallel. A first relief hole 1112 is formed in the insulating plate 111. The first relief hole 1112 is provided through the mounting surface 1111, that is, the first relief hole 1112 is a through hole.

[0018] Here, the first relief hole 1112 is for allowing the electrodes of the cells 200 in the battery module 10 to pass through. The insulating plate 111 has two opposite side surfaces 1113 along the first direction X. That is, when the bracket assembly 110 is mounted above the cells 200 of the battery module 10, the first relief hole 1112 corresponds to the electrodes of the cells 200, the distribution direction of the two side surfaces 1113 of the insulating plate 111 coincides with the distribution direction of the two end plates 300 in the battery module 10, and by passing through the first relief hole 1112 corresponding to the electrodes of the cells 200, the electrical connection between the connection assembly 120 and the cells 200 is facilitated.

[0019] As shown in FIGS. 2 and 3, the bracket assembly 110 includes a positioning bracket 112 provided on the side opposite to the mounting surface 1111 of the insulating plate 111. By providing the positioning bracket 112, it functions to support the insulating plate 111 to a certain extent, and at the same time, the insulating plate 111 can be positioned, thereby facilitating the attachment of the insulating plate 111 and the positioning bracket 112, and further contributing to the assembly of the bracket assembly 110 in the battery module 10. In the positioning bracket 112, a second relief hole 1121 is formed at a position corresponding to the first relief hole 1112. The second relief hole 1121 is provided through the positioning bracket 112. That is, when the bracket assembly 110 is attached above the cell 200 of the battery module 10, the second relief hole 1121 corresponds to the electrode of the cell 200, and by sequentially passing through the second relief hole 1121 corresponding to the electrode of the cell 200 and the first relief hole 1112, the electrical connection between the connection assembly 120 and the cell 200 is facilitated.

[0020] Here, as shown in FIG. 5, the positioning bracket 112 extends along the first direction X to the side surface 1113 of the insulating plate 111, and a blocking portion 1122 for blocking the connection assembly 120 and the end plate 300 is formed at the side surface 1113 of the insulating plate 111. That is, the positioning bracket 112 forms a bending angle at the side surface 1113 of the insulating plate 111 and partially surrounds the side surface 1113 of the insulating plate 111.

[0021] When assembling the battery module 10, an end plate 300 is provided correspondingly near the side surface 1113 of the insulating plate 111, and a connection assembly 120 is provided on the mounting surface 1111 of the insulating plate 111. However, since the connection assembly 120 is electrically connected to the cells 200 in the battery module 10, an electrical safety issue may arise between the edge of the connection assembly 120 near the side surface 1113 of the insulating plate 111 and the end plate 300. By forming a break section 1122 on the side surface 1113 of the insulating plate 111, the connection assembly 120 and the end plate 300 are isolated. Thus, the electrical clearance between the connection assembly 120 and the end plate 300 needs to spatially bypass the break section 1122, while the creepage distance between the connection assembly 120 and the end plate 300 needs to bypass the break section 1122 along its surface. In other words, by providing the interruption section 1122, the electrical clearance and creepage distance between the connection assembly 120 and the end plate 300 can be effectively increased, further improving the electrical safety of the entire battery module 10.

[0022] The position of the connection assembly 120 on the insulating plate 111 is related to the arrangement of the multiple cells 200 in the battery module 10. Accordingly, the position of the blocking portion 1122 of the positioning bracket 112 is also adjusted to match the relative position between the connection assembly 120 and the end plate 300 of the battery module 10. This ensures that the blocking portion 1122 of the positioning bracket 112 can effectively block the end plate 300 of the battery module 10 from the corresponding edge of the connection assembly 120.

[0023] The bracket assembly 110 in the embodiment of the present application comprises an insulating plate 111 having a mounting surface 1111 for mounting a connection assembly 120, and a positioning bracket 112, wherein the insulating plate 111 has a first relief hole 1112 for providing relief for the electrodes of the cell 200, the insulating plate 111 has two opposing sides 1113 along a first direction X, the positioning bracket 112 is provided on the side opposite to the mounting surface 1111 of the insulating plate 111, and a second relief hole 1121 is provided in the positioning bracket 112 at a position corresponding to the first relief hole 1112, the positioning bracket 112 extends along the first direction X to the side surface 1113 of the insulating plate 111, and a blocking portion 1122 is formed on the side surface 1113 of the insulating plate 111 for blocking the connection assembly 120 and the end plate 300. In this invention, the positioning bracket 112 is extended to the side surface 1113 of the insulating plate 111, and a break-off portion 1122 is formed on the corresponding side surface 1113. When assembling the battery module 10, the break-off portion 1122 formed on the positioning bracket 112 can separate the connection assembly 120 in the bracket assembly 110 from the end plate 300 in the battery module 10. This increases the electrical clearance and creepage distance between the connection assembly 120 and the end plate 300, and further improves the electrical safety of the entire battery module 10.

[0024] Preferably, as shown in Figure 4, a first positioning portion 1123 is provided protruding from the inner wall of the second relief hole 1121 for contacting the side wall of the electrode of the cell 200 in the battery module 10. That is, when assembling the battery module 10, the positioning bracket 112 is directly fitted onto the electrode of the corresponding cell 200 in the battery module 10, the electrode of the cell 200 is passed through the corresponding second relief hole 1121, and the first positioning portion 1123 is provided protruding from the inner wall of the first relief hole 1121, thereby positioning the mounting position of the positioning bracket 112 and the corresponding cell 200. This contributes to the accurate mounting of the insulating plate 111 and further contributes to ensuring efficient welding between the connection assembly 120 and the electrode of the cell 200.

[0025] Furthermore, by providing the first positioning section 1123, a gap can be created between the electrodes of the cell 200 and the inner wall of the second relief hole 1121, which contributes to the mounting of the positioning bracket 112 and to heat conduction between the cell 200 and the connection assembly 120, thereby contributing to improved accuracy in monitoring the temperature signal by the collection wire harness 130 in the battery module 10.

[0026] In some embodiments, a plurality of first positioning portions 1123 are provided protruding from the inner wall of the second relief hole 1121, spaced apart in the circumferential direction along the inner wall of the second relief hole 1121. By providing a plurality of first positioning portions 1123 on the inner wall of the second relief hole 1121, a plurality of contact portions are provided between the positioning bracket 112 and the corresponding electrode of the cell 200 along the circumferential direction of the electrode, thereby contributing to improved accuracy and stability of mounting between the positioning bracket 112 and the cell 200.

[0027] Here, the multiple first positioning parts 1123 may be distributed along the circumferential direction of the inner wall of the second relief hole 1121 on both opposing sides of the inner wall of the second relief hole 1121, or they may be distributed uniformly along the circumferential direction of the inner wall of the second relief hole 1121. The specific distribution method can be designed and adjusted according to the mounting requirements between the positioning bracket 112 and the cell 200 in the battery module 10 and the specific configuration of the electrodes of the cell 200, but is not particularly limited here.

[0028] In some other embodiments, the orthographic projection of the second relief hole 1121 in the positioning bracket 112 onto the insulating plate 111 lies within the first relief hole 1112. That is, the second relief hole 1112 is smaller in size than the first relief hole 1112. This allows the electrodes of the cell 200 to smoothly pass through the first relief hole 1112 in the insulating plate 111 after the electrodes of the cell 200 have passed through the second relief hole 1121 and been positioned and assembled with the positioning bracket 112, thus avoiding interference between the insulating plate 111 and the assembly of the bracket assembly 110 and the cell 200.

[0029] Preferably, a second positioning portion 1124 is provided on the side of the positioning bracket 112 facing the insulating plate 111, and a positioning hole 1114 is provided in the insulating plate 111 at a position corresponding to the second positioning portion 1124. The positioning bracket 112 and the insulating plate 111 are connected by inserting the second positioning portion 1124 into the positioning hole 1114. That is, when assembling the insulating plate 111 and the positioning bracket 112, the positioning hole 1114 in the insulating plate 111 is aligned with the second positioning portion 1124 in the positioning bracket 112, and the positioning hole 1114 and the second positioning portion 1124 are aligned with each other, thereby enabling accurate attachment of the insulating plate 111 to the positioning bracket 112, and thus achieving accurate positioning of the insulating plate 111 and the cells 200 in the battery module 10.

[0030] Here, the second positioning portion 1124 may be a heat-crimped column, that is, after inserting the second positioning portion 1124 in the positioning bracket 112 into the positioning hole 1114 in the insulating plate 111, the second positioning portion 1124 and the insulating plate 111 can be fixedly connected by heating, thereby ensuring the structural stability of the entire bracket assembly 110.

[0031] In some embodiments, a plurality of second positioning portions 1124 are provided on the side of the positioning bracket 112 facing the insulating plate 111, spaced apart in the circumferential direction along the inner wall of the second relief hole 1121, and a plurality of positioning holes 1114 are provided in the insulating plate 111, with the plurality of positioning holes 1114 corresponding one-to-one with the plurality of second positioning portions 1124. By aligning the plurality of second positioning portions 1124 and the plurality of positioning holes 1114 with each other, the assembly accuracy between the insulating plate 111 and the positioning bracket 112 can be further improved, as can the stability of the insulating plate 111 relative to the positioning bracket 112, and rotation of the insulating plate 111 around the second positioning portions 1124 by the positioning bracket 112 during installation can be avoided.

[0032] Here, the multiple second positioning portions 1124 and the multiple positioning holes 1114 may be distributed corresponding to opposite sides of the second relief hole 1121 and the first relief hole 1112, respectively, or they may be uniformly distributed circumferentially along the inner walls of the second relief hole 1121 and the first relief hole 1112. The specific distribution method can be designed and adjusted according to the connection requirements between the positioning bracket 112 and the insulating plate 111, as long as the connection accuracy and stability between the positioning bracket 112 and the insulating plate 111 are ensured, and there are no particular limitations here.

[0033] Preferably, the insulating plate 111 has a plurality of first relief holes 1112, and in the first direction X, the first relief hole 1112 adjacent to any side surface 1113 is designated as a positioning relief hole 1112a, and a positioning bracket 112 is provided corresponding to the positioning relief hole 1112a, with a blocking portion 1122 formed on the corresponding side surface 1113. That is, the positioning bracket 112 is not provided across the entire insulating plate 111, but only at the edge of the insulating plate 111, corresponding to the first relief hole 1112 adjacent to any side surface 1113 of the insulating plate 111.

[0034] This configuration enables positioning and assembly of the bracket assembly 110 and the cells 200 in the battery module 10, while avoiding electrical safety issues between the edge of the connection assembly 120 and the end plate 300. Furthermore, it reduces the overall weight of the bracket assembly 110 and the battery module 10, improving the overall space utilization of the battery module 10 and lowering the manufacturing cost of the battery module 10.

[0035] In some embodiments, the bracket assembly 110 comprises two positioning brackets 112 arranged in parallel along a first direction X, the two positioning brackets 112 each corresponding to a corresponding positioning relief hole 1112a and each forming a blocking portion 1122 on the corresponding side surface 1113. That is, the two positioning brackets 112 are each located at the opposing edges on both sides of the insulating plate 111, corresponding to the first relief holes 1112 near the two side surfaces 1113 of the insulating plate 111.

[0036] When assembling the battery module 10, the battery module 10 has two opposing end plates 300 in the first direction X, and by providing two positioning brackets 112, it is possible to further avoid the occurrence of electrical safety problems between the edge of the connection assembly 120 and the end plates 300, and further improve the overall performance stability of the battery module 10.

[0037] Here, the two positioning brackets 112 can be positioned spaced apart along the first direction X. This configuration allows the structure of the positioning brackets 112 to remain unchanged even if the number of cells 200 in the battery module 10 increases and the length of the corresponding insulating plate 111 in the first direction X increases. This makes the connection between the positioning brackets 112 and the insulating plate 111 more flexible, meeting the design requirements of different battery module 10 specifications and improving the applicability of the bracket assembly 110.

[0038] In some other embodiments, the two positioning brackets 112 may be connected to each other, i.e., the two positioning brackets 112 may be integrated, or the positioning brackets 112 may extend from one side 1113 of the insulating plate 111 to the other side 1113, forming a barrier portion 1122 at each of the two sides 1113. This configuration enhances the support function of the positioning brackets 112 on the insulating plate 111, thereby ensuring the mounting stability of the connection assembly 120 to the insulating plate 111 and further improving the overall structural stability of the battery module 10.

[0039] The specific structure and placement of the positioning bracket 112 can be designed and adjusted according to the specific structure of the battery module 10 and the specific placement of the connection assembly 120 and the end plate 300. It is sufficient that the blocking portion 1122 of the positioning bracket 112 effectively blocks the edge of the connection assembly 120 from the end plate 300 on the battery module 10, thereby avoiding electrical safety problems, and is not particularly limited here.

[0040] Preferably, as shown in Figures 2 and 5, the mounting surface 1111 of the insulating plate 111 is provided with an identification area 1115 for defining the mounting position of the connection assembly 120 on the mounting surface 1111. After mounting the bracket assembly 110 in accordance with the cells 200 in the battery module 10, it is necessary to connect multiple cells 200 in the battery module 10 in series and parallel, and in this case, it is necessary to weld the connection assembly 120 in accordance with the multiple cells 200. By providing the identification area 1115 on the mounting surface 1111 of the insulating plate 111, when the connection assembly 120 is placed on the insulating plate 111, the connection assembly 120 can be placed directly according to the position of the identification area 1115, further contributing to improved positioning accuracy between the connection assembly 120 and the insulating plate 111, and thus contributing to improved welding effect between the connection assembly 120 and the electrodes of the cells 200 in the battery module 10.

[0041] Here, the identification area 1115 may be formed by directly engraving on the mounting surface 1111 of the insulating plate 111, or a projection may be formed on the mounting surface 1111 of the insulating plate 111 to limit the mounting position of the connection assembly 120 to the area enclosed by the identification area 1115, thereby enabling rapid installation of the connection assembly 120.

[0042] The specific structure and shape of the identification area 1115 can be designed and adjusted according to the distribution of cells 200 in the battery module 10, the connection method, the specific size of the cells 200, and the specific structure of the connection assembly 120. The identification area 1115 is not particularly limited here, as long as it ensures that providing it effectively improves the positioning accuracy between the connection assembly 120 and the insulating plate 111.

[0043] Next, embodiments of the present application further provide a wire harness integration assembly including a bracket assembly, the specific structure of which of which bracket assembly refers to the above embodiments, and since this wire harness integration assembly employs all the technical concepts of all the embodiments described above, it has at least all the beneficial effects of the technical concepts of the above embodiments, and therefore a further explanation is omitted here.

[0044] As shown in Figures 1 and 2, the wire harness integration assembly 100 comprises a bracket assembly 110, a connection assembly 120, and a collection wire harness 130. The connection assembly 120 is provided on the mounting surface 1111 of the insulating plate 111 of the bracket assembly 110, and is provided corresponding to the first relief hole 1112 of the mounting surface 1111 and the second relief hole 1121 of the positioning bracket 112, and is used to electrically connect to the electrodes of the cells 200 in the battery module 10. The collection wire harness 130 is provided on the mounting surface 1111 of the insulating plate 111 and is electrically connected to the connection assembly 120. In this application, by integrating the collection wire harness 130 and the connection assembly 120 into the bracket assembly 110, a high degree of integration of the wire harness integration assembly 100 in the battery module 10 is achieved, making it possible to quickly assemble the battery module 10.

[0045] In other words, when mounting the wire harness integration assembly 100 above the cells 200 of the battery module 10, the first relief hole 1112 and the second relief hole 1121 in the bracket assembly 110 are aligned with the electrodes of the corresponding cells 200, the electrodes of the cells 200 are passed through the second relief hole 1121 and the first relief hole 1112 in sequence, and the connection assembly 120 is placed on the bracket assembly 110 and electrically connected to the cells 200 in the battery module 10, thereby realizing a series or parallel connection of multiple cells 200 in the battery module 10. Next, the collection wire harness 130 is attached to the mounting surface 1111 of the insulating plate 111, and the collection wire harness 130 is fixed with a cable tie or similar structure, and then one end of the collection wire harness 130 is electrically connected to the connection assembly 120, thereby realizing monitoring of signals such as voltage and temperature of the corresponding cells 200 in the battery module 10.

[0046] Here, the connection assembly 120 includes a first connecting member 121 for connecting two adjacent cells 200 in the battery module 10 to realize a series or parallel connection of the two adjacent cells 200, and a second connecting member 122 for electrically connecting to the output electrodes of the battery module 10. The output electrodes of the battery module 10 are located at both ends in the arrangement direction of the multiple cells 200 in the battery module 10, that is, the second connecting member 122 is provided at the opposing ends of the bracket assembly 110. In other words, the second connecting members 122 located at both ends of the bracket assembly 110 are provided in parallel along a second direction Y that is at an angle with the first direction X, and the second connecting member 122 is used to electrically connect to an external output circuit.

[0047] Specifically, the first connecting member 121 is located on the side of the bracket assembly 110 facing the insulating plate 111 of the interruption portion 1122, while the second connecting member 122 protrudes beyond the side surface 1113 of the insulating plate 111. In other words, the interruption portion 1122 in the bracket assembly 110 is located only between the edge of the first connecting member 121 and the end plate 300 of the battery module 10, thereby interrupting the first connecting member 121 and the end plate 300 of the battery module 10 and avoiding the occurrence of electrical safety problems between the first connecting member 121 and the end plate 300. On the other hand, the second connecting member 122, as an output terminal for the wire harness collection assembly and the entire battery module 10, needs to be electrically connected to an external output circuit in order to realize the practical use of the battery module 10, meaning that it is not necessary to interrupt the connection between the second connecting member 122 and the end plate 300 of the battery module 10 with the interruption portion 1122.

[0048] The position of the connection assembly 120 on the insulating plate 111 is related to the arrangement of the multiple cells 200 in the battery module 10. Accordingly, the position of the break-off portion 1122 of the positioning bracket 112 is also adjusted to match the relative position between the connection assembly 120 and the end plate 300 of the battery module 10. This ensures that the break-off portion 1122 of the positioning bracket 112 effectively isolates the end plate 300 of the battery module 10 from the corresponding edge of the connection assembly 120, thereby avoiding electrical safety problems. In other words, the specific position of the break-off portion 1122 of the positioning bracket 112 in this embodiment can be designed and adjusted according to actual usage requirements and is not particularly limited here.

[0049] Preferably, the wire harness integration assembly 100 further comprises an output converter provided on the bracket assembly 110 and located at at least one end of the bracket assembly 110. The other end of the collection wire harness 130 is connected to the output converter. The output converter is electrically connected to an external monitoring device to transmit signals such as voltage and temperature monitored by the collection wire harness 130 to the external monitoring device. This enables monitoring and maintenance of the operating status and performance of the battery module 10, ensuring the safe and stable use of the battery module 10.

[0050] Here, one end of a portion of the collection wire harness 130, connected to the connection assembly 120, is equipped with a thermistor NTC to monitor the temperature of the corresponding cell 200 in the battery module 10. After welding the collection wire harness 130 to the first connecting member 121 or the second connecting member 122 of the connection assembly 120, a layer of UV adhesive is applied to the connection point to increase the welding strength between the collection wire harness 130 and the connection assembly 120, prevent foreign matter from coming into contact with the welded area between the collection wire harness 130 and the connection assembly 120, and further improve the connection stability between the collection wire harness 130 and the connection assembly 120.

[0051] Finally, the embodiments of the present application further provide a battery module including a wire harness integration assembly, the specific configuration of which refers to the embodiments described above, and since this battery module employs all the technical proposals of all the embodiments described above, it has at least all the beneficial effects of the technical proposals of the embodiments described above, and therefore a further explanation is omitted here.

[0052] As shown in Figures 4 to 6, the battery module 10 comprises two end plates 300, a plurality of cells 200, and a wire harness integration assembly 100. The two end plates 300 are arranged in parallel along a first direction X, and the plurality of cells 200 are arranged in parallel between the two end plates 300. The electrodes of the cells 200 pass through first relief holes 1112 and second relief holes 1121 in the wire harness integration assembly 100 and are electrically connected to the connection assembly 120 in the wire harness integration assembly 100. The cutoff portion 1122 of the positioning bracket 112 in the wire harness integration assembly 100 is located between the end plate 300 and the first connecting member 121 of the connection assembly 120 to avoid the occurrence of electrical safety problems between the end plate 300 and the first connecting member 121.

[0053] In other words, when assembling the battery module 10, first the first relief hole 1112 of the insulating plate 111 in the bracket assembly 110 is aligned with the second relief hole 1121 of the positioning bracket 112, then the positioning hole 1114 of the insulating plate 111 is aligned with the second positioning portion 1124 of the positioning bracket 112, and the second positioning portion 1124 is passed through the positioning hole 1114, thereby achieving positioning and mounting of the insulating plate 111 and the positioning bracket 112.

[0054] Then, the connection assembly 120 is attached to the area defined by the identification area 1115 on the insulating plate 111 to achieve precise positioning of the connection assembly 120 and the insulating plate 111. Next, the collection wire harness 130 is attached to the mounting surface 1111 of the insulating plate 111, and the collection wire harness 130 is fixed using a cable tie or similar structure. At the same time, one end of the collection wire harness 130 is electrically connected to the connection assembly 120, and the other end of the collection wire harness 130 is electrically connected to the output converter, thereby completing the assembly of the wire harness integrated assembly 100.

[0055] Subsequently, when attaching the entire wire harness integration assembly 100 above the cells 200 of the battery module 10, the first relief holes 1112 and the second relief holes 1121 in the bracket assembly 110 are aligned with the corresponding electrodes of the cells 200, and the electrodes of the cells 200 are sequentially passed through the second relief holes 1121 and the first relief holes 1112, and the relative position between the positioning bracket 112 and the electrodes of the cells 200 is limited using the first positioning portion 1123 in the positioning bracket 112, and at the same time, the interruption portion 1122 of the positioning bracket 112 is positioned between the end plate 300 and the first connecting member 121 of the connection assembly 120 to separate the end plate 300 and the first connecting member 121, thereby avoiding the occurrence of electrical safety problems between the end plate 300 and the first connecting member 121. Next, by electrically connecting the connection assembly 120 to the electrodes of the cells 200 in the battery module 10, a series or parallel connection of multiple cells 200 in the battery module 10 is realized, enabling monitoring of signals such as voltage and temperature of the corresponding cells 200 in the battery module 10.

[0056] In this invention, the positioning bracket 112 in the bracket assembly 110 is extended to the side surface 1113 of the insulating plate 111, and a break-off portion 1122 is formed on the corresponding side surface 1113. This allows the break-off portion 1122 formed on the positioning bracket 112 to separate the first connecting member 121 of the connection assembly 120 in the bracket assembly 110 from the end plate 300 in the battery module 10 when assembling the battery module 10. This increases the electrical clearance and creepage distance between the first connecting member 121 and the end plate 300, thereby improving the electrical safety of the entire battery module 10. [Explanation of Symbols]

[0057] 10 battery modules, 100 Wire harness integration assembly, 110 Bracket assembly, 111 Insulating plate, 1111 Mounting surface, 1112 First relief hole, 1112a Positioning relief hole, 1113 Side view, 1114 Positioning hole, 1115 Identification area, 112 Positioning bracket, 1121 Second relief hole, 1122 Blocking section, 1123 First positioning section, 1124 Second positioning section, 120 Connection assembly, 121 First connecting member, 122 Second connecting member, 130 Collecting wire harness, X First direction, Y Second direction, 200 cells, 300 end plate.

Claims

1. A bracket assembly (110) configured to mount a battery module (10), the battery module (10) comprising two end plates (300) facing each other along a first direction (X), and a cell (200) and a connection assembly (120) electrically connected to each other, the cell (200) being located between the two end plates (300), The bracket assembly (110) is An insulating plate (111) having a mounting surface (1111) configured for mounting the connection assembly (120), wherein the insulating plate (111) has a first relief hole (1112) provided through the mounting surface (1111), the first relief hole (1112) is configured to allow the electrodes of the cell (200) to escape, and the insulating plate (111) has two opposing sides (1113) along the first direction (X), A positioning bracket (112) provided on the side of the insulating plate (111) opposite to the mounting surface (1111), wherein a second relief hole (1121) is provided through the positioning bracket (112) at a position corresponding to the first relief hole (1112), the positioning bracket (112) extends along the first direction (X) to the side surface (1113) of the insulating plate (111), and a blocking portion (1122) is formed on the side surface (1113) of the insulating plate (111) to block the connection assembly (120) and the end plate (300), the positioning bracket (112) comprises Bracket assembly (110).

2. A first positioning portion (1123) is provided protruding from the inner wall of the second relief hole (1121), configured to contact the side wall of the electrode of the cell (200) in the battery module (10). The bracket assembly (110) according to claim 1.

3. Multiple first positioning portions (1123) are provided protruding from the inner wall of the second relief hole (1121), and are spaced apart in the circumferential direction along the inner wall of the second relief hole (1121). The bracket assembly (110) according to claim 2.

4. A second positioning portion (1124) is provided protruding from the side of the positioning bracket (112) facing the insulating plate (111), and a positioning hole (1114) is provided in the insulating plate (111) at a position corresponding to the second positioning portion (1124). The positioning bracket (112) and the insulating plate (111) are connected by inserting the second positioning portion (1124) into the positioning hole (1114). The bracket assembly (110) according to claim 1.

5. On the side of the positioning bracket (112) facing the insulating plate (111), a plurality of second positioning portions (1124) are provided, spaced apart in the circumferential direction along the inner wall of the second relief hole (1121). The insulating plate (111) has a plurality of positioning holes (1114), and the plurality of positioning holes (1114) are provided in a one-to-one correspondence with the plurality of second positioning portions (1124). The bracket assembly (110) according to claim 4.

6. The insulating plate (111) has a plurality of first relief holes (1112), and in the first direction (X), the first relief hole (1112) closest to any of the side surfaces (1113) is designated as the positioning relief hole (1112a), and the positioning bracket (112) is provided corresponding to the positioning relief hole (1112a), and the blocking portion (1122) is formed on the corresponding side surface (1113). A bracket assembly (110) according to any one of claims 1 to 5.

7. The bracket assembly (110) comprises two positioning brackets (112), the two positioning brackets (112) are arranged in parallel along the first direction (X) and are provided corresponding to the corresponding positioning relief holes (1112a), and each of the two positioning brackets (112) has a blocking portion (1122) formed on the corresponding side surface (1113). The bracket assembly (110) according to claim 6.

8. The mounting surface (1111) is provided with an identification region (1115) configured to define the mounting position of the connection assembly (120) on the mounting surface (1111). A bracket assembly (110) according to any one of claims 1 to 5.

9. The orthographic projection of the second relief hole (1121) in the positioning bracket (112) onto the insulating plate (111) is located within the first relief hole (1112). A bracket assembly (110) according to any one of claims 1 to 5.

10. The second positioning portion (1124) is a heat-crimped column. The bracket assembly (110) according to claim 4 or 5.

11. The two positioning brackets (112) are spaced apart along the first direction (X), The bracket assembly (110) according to claim 7.

12. The positioning bracket (112) extends from one side surface (1113) of the insulating plate (111) to the other side surface (1113), and the blocking portion (1122) is formed on each of the two side surfaces (1113). A bracket assembly (110) according to any one of claims 1 to 5.

13. A wire harness integrated assembly (100) used in a battery module (10), A bracket assembly (110) according to any one of claims 1 to 12, A connection assembly (120) is provided on the mounting surface (1111) of the insulating plate (111) in the bracket assembly (110) and is configured to be electrically connected to the electrodes of the cell (200) in the battery module (10), The collection wire harness (130) is provided on the mounting surface (1111) of the insulating plate (111) and is electrically connected to the connection assembly (120), Wire harness integrated assembly (100).

14. The aforementioned connection assembly (120) The battery module (10) is configured to connect two adjacent cells (200), and the first connecting member (121) is located on the side of the bracket assembly (110) facing the insulating plate (111) of the interruption portion (1122), The battery module (10) is electrically connected to the output electrode, and the second connecting member (122) protrudes from the side surface (1113) of the insulating plate (111), The wire harness integrated assembly (100) according to claim 13.

15. Two end plates (300) are arranged in parallel along the first direction (X), A plurality of cells (200) are arranged in parallel between the two end plates (300), A wire-wire harness integrated assembly (100) according to claim 13 or 14, wherein the electrodes of the cell (200) penetrate a first relief hole (1112) and a second relief hole (1121) in the wire-wire harness integrated assembly (100), and the electrodes are electrically connected to a connection assembly (120) in the wire-wire harness integrated assembly (100), The blocking portion (1122) of the positioning bracket (112) in the wire harness integrated assembly (100) is located between the end plate (300) and the first connecting member (121) of the connection assembly (120). Battery module (10).

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