End plate and battery cell module
By increasing the area and setting multiple fixing positions on the end plate of the battery cell module, the problem of low space utilization of the module end plate in the prior art is solved, and the miniaturization design and production efficiency of the battery cell module are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANY LITHIUM ENERGY CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-28
AI Technical Summary
The existing battery cell module has a simple module end plate structure, resulting in low space utilization and large battery cell module size, which is not conducive to the miniaturization design of electrical equipment.
Design an end plate with increased area and set busbar fixing position, wire harness fixing position and screw fixing position on the same side for fixed connection of integrated busbar, module wire harness and mounting screw, to replace multiple module end plates of multiple rows of cells on the same end.
It improves the integration and space utilization of the end board, simplifies the installation process of the battery cell module, reduces the size of the battery cell module, and is conducive to the miniaturization design of electrical equipment.
Smart Images
Figure CN224177463U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of energy storage technology, specifically to an end plate and a battery cell module. Background Technology
[0002] In order to increase the capacity, existing battery modules generally have multiple rows of the same number of battery cells. Each row of battery cells is connected to a module end plate at both ends.
[0003] However, the module's end plate has a simple structure and can only serve to fix the battery cells. This results in low space utilization of the module's end plate, leading to a large size of the battery cell module, which is not conducive to the miniaturization design of electrical equipment. Utility Model Content
[0004] This application provides an end plate and a cell module. The end plate is used to mount on the cell module, which includes the end plate and at least two rows of cells. The end plate is connected to the same end of the at least two rows of cells. This allows a single end plate to replace multiple module end plates connected to the same end of multiple rows of cells in the prior art, thereby improving the integration of the end plate. Furthermore, the same side of the end plate is provided with a busbar fixing position, a wire harness fixing position, and a screw fixing position. This further improves the integration of the end plate, increases its space utilization, and helps to reduce the size of the cell module, thus facilitating the miniaturization design of electrical equipment.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] In a first aspect, this application provides an end plate for mounting on a battery cell module; the battery cell module includes the end plate and at least two rows of battery cells, and the end plate is connected to the same end of the at least two rows of battery cells;
[0007] The end plate has a busbar fixing position, a wire harness fixing position and a screw fixing position on the same side; the busbar fixing position is used to fix the integrated busbar of the battery cell module, the wire harness fixing position is used to fix the module wire harness of the battery cell module, and the screw fixing position is used to fix the mounting screw of the battery cell module.
[0008] As an optional implementation, the battery cells are arranged in two rows, and the end plate is a rectangular plate, the end plate including a first plate surface, a second plate surface and a first side surface;
[0009] The first plate and the second plate are disposed opposite to each other, and the first plate is used to connect with the battery cell;
[0010] The first side is used to connect the integrated busbar, and the busbar fixing position, the wire harness fixing position and the screw fixing position are all provided on the first side.
[0011] As an optional implementation, the busbar fixing position includes a first busbar fixing groove, a second busbar fixing groove, a third busbar fixing groove and a fourth busbar fixing groove arranged sequentially at intervals;
[0012] The wall of the first busbar fixing groove and the wall of the fourth busbar fixing groove are respectively connected to two output aluminum bars of the integrated busbar, or the wall of the second busbar fixing groove and the wall of the third busbar fixing groove are respectively connected to the other two output aluminum bars of the integrated busbar.
[0013] As an optional implementation, the wire harness fixing position includes a first wire harness fixing groove and a second wire harness fixing groove; the first wire harness fixing groove and the second wire harness fixing groove are respectively used to fix and connect the two module wire harnesses;
[0014] The first wire harness fixing groove is disposed between the first busbar fixing groove and the second busbar fixing groove; the second wire harness fixing groove is disposed between the third busbar fixing groove and the fourth busbar fixing groove;
[0015] Both the first wire harness fixing groove and the second wire harness fixing groove have wire-passing holes at their bottoms.
[0016] As an optional implementation, the screw fixing position includes a first screw fixing hole, a second screw fixing hole, and a third screw fixing hole;
[0017] The first screw fixing hole, the second screw fixing hole, and the third screw fixing hole are all used for threaded connection with the mounting screw;
[0018] The first screw fixing hole and the third screw fixing hole are located at both ends of the first side along the long side direction; the second screw fixing hole is located in the middle of the first side along the long side direction.
[0019] As an optional implementation, the second plate surface is provided with a control component fixing position; the control component fixing position is used to fix and connect the control component.
[0020] As an optional implementation, the control component fixing position includes a plurality of threaded connection holes, all of which are bolted to the control component.
[0021] As an optional implementation, the end plate is provided with a plurality of weight-reduction grooves, the openings of which are located on the second plate surface.
[0022] Secondly, this application provides a battery cell module, which includes an end plate as described in any of the first aspects above, at least two rows of battery cells, an integrated busbar, a module wiring harness, and mounting screws.
[0023] The end plate is connected to the same end of at least two rows of battery cells; the same side of the end plate is provided with a busbar fixing position, a wire harness fixing position and a screw fixing position; the busbar fixing position is used to fix the integrated busbar, the wire harness fixing position is used to fix the module wire harness, and the screw fixing position is used to fix the mounting screw.
[0024] As an optional implementation, the number of end plates is two, and the number of battery cells is two rows; the two rows of battery cells have the same width and are arranged side by side;
[0025] Along the arrangement direction of each row of cells, one end plate is disposed at the first end of the two rows of cells, and the other end plate is disposed at the second end of the two rows of cells.
[0026] Compared with the prior art, the beneficial effects of this application are at least as follows:
[0027] The integration of the end plate is improved by increasing its area and by setting busbar fixing positions, wire harness fixing positions, and screw fixing positions on the same side of the end plate. Specifically, the end plate is used to install on a cell module; the cell module includes the end plate and at least two rows of cells, with the end plate connected to the same end of the at least two rows of cells. This allows a single end plate to replace multiple module end plates connected to the same end of multiple rows of cells in the prior art, thereby improving the integration of the end plate, simplifying the installation process of the cell module, and thus increasing the production efficiency of the cell module.
[0028] The end plate has busbar fixing positions, wire harness fixing positions, and screw fixing positions on the same side. The busbar fixing positions are used to fix the integrated busbar of the battery cell module, the wire harness fixing positions are used to fix the module wire harness of the battery cell module, and the screw fixing positions are used to fix the mounting screw of the battery cell module. This improves the integration of the end plate while ensuring that the battery cell module has basic functions, thus increasing the space utilization of the end plate and helping to reduce the size of the battery cell module. Therefore, it is beneficial to the miniaturization design of electrical equipment. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of an end plate provided in an embodiment of this application;
[0031] Figure 2This is a schematic diagram of the structure of a battery cell module provided in an embodiment of this application;
[0032] Figure 3 for Figure 2 Exploded view of the Zhongdian cell module;
[0033] Figure 4 for Figure 3 A schematic diagram of the integrated busbar structure.
[0034] Explanation of reference numerals in the attached figures:
[0035] 100-Battery cell module, 120-Battery cell, 130-Integrated busbar, 131-Output aluminum busbar, 140-Module wiring harness, 150-Conductive component, 160-Buffer strip, 170-Intermediate insulation sheet, 180-Liquid cooling plate, 190-End insulation sheet, 1100-Steel cable tie, 110-End plate, 111-Busbar fixing position, 1111-First busbar fixing slot, 1112-Second busbar fixing slot, 1113-Third busbar fixing slot, 1114-Fourth busbar fixing slot 112-Wire harness fixing position, 1121-First wire harness fixing slot, 1122-Second wire harness fixing slot, 1123-Wire threading hole, 113-Screw fixing position, 1131-First screw fixing hole, 1132-Second screw fixing hole, 1133-Third screw fixing hole, 114-First plate surface, 115-Second plate surface, 116-First side surface, 117-Second side surface, 118-Control component fixing position, 1181-Threaded connection hole, 119-Weight reduction slot. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0037] To increase capacity, existing battery cell modules typically consist of multiple rows of the same number of cells. Each row of cells is connected to two end plates, meaning the number of end plates is twice the number of cell rows. This results in a large number of end plates, leading to low integration of the battery cell module. Furthermore, the end plates have a simple structure, serving only to hold the cells in place. This results in low space utilization, leading to a larger battery cell module size, which is detrimental to the miniaturization design of electrical equipment.
[0038] To address the aforementioned technical issues, the end plate provided by this utility model improves its integration by increasing its area and by providing busbar fixing positions, wire harness fixing positions, and screw fixing positions on the same side of the end plate. Specifically, this end plate is used to install on a battery cell module; the battery cell module includes the end plate and at least two rows of battery cells, with the end plate connected to the same end of the at least two rows of battery cells. This allows a single end plate to replace multiple module end plates connected to the same end of multiple rows of battery cells in the prior art, thereby improving the integration of the end plate, simplifying the installation process of the battery cell module, and thus increasing the production efficiency of the battery cell module.
[0039] The end plate has busbar fixing positions, wire harness fixing positions, and screw fixing positions on the same side. The busbar fixing positions are used to fix the integrated busbar of the battery cell module, the wire harness fixing positions are used to fix the module wire harness of the battery cell module, and the screw fixing positions are used to fix the mounting screw of the battery cell module. This improves the integration of the end plate while ensuring that the battery cell module has basic functions, thus increasing the space utilization of the end plate and helping to reduce the size of the battery cell module. Therefore, it is beneficial to the miniaturization design of electrical equipment.
[0040] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.
[0041] The following provides a detailed description of the specific structure of the end plate and various possible implementation methods.
[0042] Figure 1 This is a schematic diagram of the structure of an end plate 110 provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of a battery cell module 100 provided in an embodiment of this application. Figure 3 for Figure 2 Exploded view of the Zhongdianxin module 100. Figure 4 for Figure 3 A schematic diagram of the structure of the integrated busbar 130.
[0043] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The end plate 110 is used for mounting on the cell module 100. The cell module 100 includes the end plate 110 and at least two rows of cells 120, with the end plate 110 connected to the same end of the at least two rows of cells 120. On the same side of the end plate 110, a busbar fixing position 111, a wire harness fixing position 112, and a screw fixing position 113 are provided. The busbar fixing position 111 is used to fix the integrated busbar 130 of the cell module 100, the wire harness fixing position 112 is used to fix the module wire harness 140 of the cell module 100, and the screw fixing position 113 is used to fix the mounting screw of the cell module 100.
[0044] In this embodiment, the integration of the end plate 110 is improved by increasing its area and by providing busbar fixing positions 111, wire harness fixing positions 112, and screw fixing positions 113 on the same side of the end plate 110. Specifically, the end plate 110 is used to install on the cell module 100; the cell module 100 includes the end plate 110 and at least two rows of cells 120, and the end plate 110 is connected to the same end of the at least two rows of cells 120. In this way, one end plate 110 can replace multiple module end plates connected to the same end of multiple rows of cells 120 in the prior art, thereby improving the integration of the end plate 110, simplifying the installation process of the cell module 100, and thus improving the production efficiency of the cell module 100.
[0045] Because the end plate 110 has a busbar fixing position 111, a wire harness fixing position 112, and a screw fixing position 113 on the same side; the busbar fixing position 111 is used to fix the integrated busbar 130 of the battery cell module 100, the wire harness fixing position 112 is used to fix the module wire harness 140 of the battery cell module 100, and the screw fixing position 113 is used to fix the mounting screw of the battery cell module 100. In this way, while ensuring that the battery cell module 100 has basic functions, the integration of the end plate 110 is further improved, that is, the space utilization of the end plate 110 is improved, which is conducive to reducing the size of the battery cell module 100, thus facilitating the miniaturization design of electrical equipment.
[0046] It should be noted that the end plate 110 is made of insulating material, which can be plastic or ceramic, or other types of insulating material. This application embodiment does not limit this.
[0047] It should also be noted that the battery cell module 100 described above may have two, three, or more rows of battery cells 120, and this application embodiment does not limit this. Each battery cell 120 is a cuboid with the same shape and size, and the number of battery cells 120 in each row is the same.
[0048] It should also be noted that the above-mentioned module harness 140 can be a data transmission line attached to the integrated busbar 130, or it can be other harnesses. This application embodiment does not limit this.
[0049] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4The battery cells 120 are arranged in two rows, and the end plate 110 is a rectangular plate. The end plate 110 includes a first plate surface 114, a second plate surface 115, and a first side surface 116. The first plate surface 114 and the second plate surface 115 are arranged opposite to each other. The first plate surface 114 is used to connect with the battery cells 120. The first side surface 116 is used to connect the integrated busbar 130. The busbar fixing position 111, the wire harness fixing position 112, and the screw fixing position 113 are all arranged on the first side surface 116.
[0050] In this embodiment, since the battery cell 120 is rectangular, the ends formed by connecting two rows of battery cells 120 side by side are also rectangular. Therefore, setting the end plate 110 as a rectangular plate perfectly matches the ends of the rectangle. Since the first side surface 116 is used to connect the integrated busbar 130, the busbar fixing position 111 and the wire harness fixing position 112 are both located on the first side surface 116. This facilitates the fixed connection between the data transmission line 140, which is attached to the integrated busbar 130, and the wire harness fixing position 112.
[0051] Since the screw fixing positions 113 are all located on the first side 116, compared to a solution where the screw fixing positions 113 are located on the plate surface, the mounting screws can be inserted deeper into the end plate 110. This allows the mounting screws to connect the end plate 110 more securely, thus enhancing the structural stability of the battery module 100.
[0052] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The busbar fixing position 111 includes a first busbar fixing groove 1111, a second busbar fixing groove 1112, a third busbar fixing groove 1113, and a fourth busbar fixing groove 1114 arranged sequentially at intervals. The groove wall of the first busbar fixing groove 1111 and the groove wall of the fourth busbar fixing groove 1114 are respectively connected to two output aluminum bars 131 of the integrated busbar 130, or the groove walls of the second busbar fixing groove 1112 and the third busbar fixing groove 1113 are respectively connected to the other two output aluminum bars 131 of the integrated busbar 130.
[0053] Since the integrated busbar 130 of the battery cell module 100 is generally along the first direction ( Figure 4 Two output aluminum bars 131 are respectively set at both ends of the integrated busbar 130 in the X direction, wherein the two output aluminum bars 131 on the first end of the integrated busbar 130 are set along the second direction ( Figure 4 The two output aluminum bars 131 on the second end of the integrated busbar 130 are located in the middle along the second direction.
[0054] Based on the aforementioned placement of the output aluminum busbar 131 on the integrated busbar 130, the busbar fixing position 111 includes a first busbar fixing groove 1111, a second busbar fixing groove 1112, a third busbar fixing groove 1113, and a fourth busbar fixing groove 1114 arranged sequentially at intervals. Specifically, the first busbar fixing groove 1111, the second busbar fixing groove 1112, the third busbar fixing groove 1113, and the fourth busbar fixing groove 1114 are arranged sequentially along the long side of the first side 116, such that the first busbar fixing groove 1111 and the fourth busbar fixing groove 1114 are located on both sides of the first side 116 along the second direction, and the second busbar fixing groove 1112 and the third busbar fixing groove 1113 are located in the middle of the first side 116 along the second direction. When the end plate 110 is positioned at the first end of the integrated busbar 130, the walls of the first busbar fixing groove 1111 and the fourth busbar fixing groove 1114 are respectively connected to the two output aluminum bars 131 on the first end of the integrated busbar 130. When the end plate 110 is positioned at the second end of the integrated busbar 130, the walls of the second busbar fixing groove 1112 and the third busbar fixing groove 1113 are respectively connected to the two output aluminum bars 131 on the second end of the integrated busbar 130. Therefore, one end plate 110 can be adapted to four output aluminum bars 131 on the integrated busbar 130, further improving the integration of the end plate 110.
[0055] It should be noted that the walls of the first busbar fixing groove 1111, the second busbar fixing groove 1112, the third busbar fixing groove 1113, and the fourth busbar fixing groove 1114 are all connected to the output aluminum bar 131 via a cuboid conductive element 150.
[0056] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The wire harness fixing position 112 includes a first wire harness fixing groove 1121 and a second wire harness fixing groove 1122; the first wire harness fixing groove 1121 and the second wire harness fixing groove 1122 are respectively used to fix and connect two module wire harnesses 140. The first wire harness fixing groove 1121 is disposed between the first busbar fixing groove 1111 and the second busbar fixing groove 1112; the second wire harness fixing groove 1122 is disposed between the third busbar fixing groove 1113 and the fourth busbar fixing groove 1114. The bottom of both the first wire harness fixing groove 1121 and the second wire harness fixing groove 1122 is provided with a wire through hole 1123.
[0057] In this embodiment, when the end plate 110 is installed on the cell module 100, one module harness 140 of the integrated busbar 130 passes between the first busbar fixing slot 1111 and the second busbar fixing slot 1112, and the other module harness 140 of the integrated busbar 130 passes between the third busbar fixing slot 1113 and the fourth busbar fixing slot 1114. Based on the above-mentioned setting position of the module harness 140, the first harness fixing slot 1121 is set between the first busbar fixing slot 1111 and the second busbar fixing slot 1112, and the second harness fixing slot 1122 is set between the third busbar fixing slot 1113 and the fourth busbar fixing slot 1114, which can just match the setting position of the module harness 140.
[0058] Furthermore, both the bottom of the first wire harness fixing groove 1121 and the second wire harness fixing groove 1122 are provided with wire-passing holes 1123. This allows cable ties to be wrapped around the module wire harness 140 and then passed through the wire-passing holes 1123 located on the bottom of the same groove for fixation, so that the module wire harness 140 is fixedly connected to the first wire harness fixing groove 1121 or the second wire harness fixing groove 1122. This makes the connection between the module wire harness 140 and the end plate 110 more secure, thereby enhancing the structural stability of the battery cell module 100.
[0059] It should be noted that the number of the threading holes 1123 located on the same bottom of the groove can be two, three or more, and this application embodiment does not limit this.
[0060] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The screw fixing position 113 includes a first screw fixing hole 1131, a second screw fixing hole 1132, and a third screw fixing hole 1133. The first screw fixing hole 1131, the second screw fixing hole 1132, and the third screw fixing hole 1133 are all used for threaded connection with the mounting screw. The first screw fixing hole 1131 and the third screw fixing hole 1133 are located at both ends of the first side surface 116 along its long side; the second screw fixing hole 1132 is located in the middle of the first side surface 116 along its long side.
[0061] In this embodiment, the first screw fixing hole 1131, the second screw fixing hole 1132, and the third screw fixing hole 1133 are all used for threaded connection with the mounting screw. This allows for a more secure connection between the end plate 110 and one end of the mounting screw, the other end of which is used for connection with the mounting frame of the electrical equipment. This ensures a more secure connection between the battery module 100 and the mounting frame of the electrical equipment, thereby enhancing the overall structural stability of the electrical equipment.
[0062] Since the first screw fixing hole 1131 and the third screw fixing hole 1133 are located at both ends of the first side 116 along the long side direction, and the second screw fixing hole 1132 is located in the middle of the first side 116 along the long side direction, the two ends and the middle of the end plate 110 are fixedly connected along the long side direction of the first side 116, thus further enhancing the overall structural stability of the electrical equipment.
[0063] It should be noted that the first screw fixing hole 1131, the second screw fixing hole 1132 and the third screw fixing hole 1133 can all penetrate the end plate 110, so that the first screw fixing hole 1131, the second screw fixing hole 1132 and the third screw fixing hole 1133 can all connect the first side 116 and the second side 117 that are arranged opposite to each other on the end plate 110.
[0064] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The second panel 115 is provided with a control component fixing position 118; the control component fixing position 118 is used to fix the control component.
[0065] Specifically, the module harness 140 on the integrated busbar 130 is connected to the control component. When the module harness 140 is a data transmission line, the control component can collect monitoring data of the battery cell 120 through the data transmission line, and then issue corresponding commands based on the monitoring data. Therefore, the control component realizes automated control of the battery cell module 100.
[0066] Furthermore, the control component fixing position 118 on the second plate surface 115 of the end plate 110 is recessed towards the first plate surface 114. In this way, the control component fixing position 118 can not only be used to fix the control component, but also accommodate at least part of the volume of the control component, thus improving the compactness of the cell module 100.
[0067] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The control component fixing position 118 includes multiple threaded connection holes 1181, all of which are bolted to the control component.
[0068] Since threaded connections are more reliable than other types of connections, they can further ensure the effective connection between the control component and the end plate 110, thereby ensuring that the control component can operate more stably and thus further guaranteeing the automated control of the battery cell module 100.
[0069] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The end plate 110 is provided with multiple weight reduction grooves 119, and the opening of the weight reduction grooves 119 is located on the second plate surface 115.
[0070] In this embodiment, since the end plate 110 is provided with multiple weight-reducing grooves 119, the weight of the end plate 110 can be reduced, thereby reducing the weight of the battery cell module 100, which is beneficial for the lightweight design of electrical equipment. In addition, it can also reduce the amount of material used in the end plate 110, thereby reducing the manufacturing cost of the end plate 110, and thus reducing the manufacturing cost of the battery cell 120.
[0071] Since the groove of the weight reduction groove 119 is located on the second plate surface 115, it avoids the need to cut grooves on the first plate surface 114, thereby increasing the connection area between the end plate 110 and the cell 120. This helps to reduce the pressure between the end plate 110 and the cell surface, which in turn reduces the probability of the cell surface being damaged by the end plate 110, thus helping to extend the service life of the cell module 100.
[0072] In addition, among the multiple weight reduction slots 119, a connecting beam is provided between two adjacent weight reduction slots 119. This connecting beam can increase the strength of the end plate 110, thereby improving the structural stability of the battery cell module 100.
[0073] It should be noted that the opening of the aforementioned weight-reducing groove 119 can be rectangular, circular, or elliptical, or other shapes, and this application embodiment does not limit this.
[0074] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This application also provides a battery cell module 100, which includes any of the above-described end plates 110, at least two rows of battery cells 120, an integrated busbar 130, a module wiring harness 140, and mounting screws. The end plate 110 is connected to the same end of the at least two rows of battery cells 120; the same side of the end plate 110 is provided with a busbar fixing position 111, a wiring harness fixing position 112, and a screw fixing position 113; the busbar fixing position 111 is used to fix the integrated busbar 130, the wiring harness fixing position 112 is used to fix the module wiring harness 140, and the screw fixing position 113 is used to fix the mounting screws.
[0075] In this embodiment, the integration of the end plate 110 is improved by increasing its area and by providing busbar fixing positions 111, wire harness fixing positions 112, and screw fixing positions 113 on the same side of the end plate 110. Specifically, the end plate 110 is mounted on the cell module 100; the cell module 100 includes the end plate 110 and at least two rows of cells 120, with the end plate 110 connected to the same end of the at least two rows of cells 120. Thus, a single end plate 110 can replace multiple module end plates connected to the same end of multiple rows of cells 120 in the prior art, thereby improving the integration of the end plate 110, simplifying the installation process of the cell module 100, and thus improving the production efficiency of the cell module 100.
[0076] Because the end plate 110 has a busbar fixing position 111, a wire harness fixing position 112, and a screw fixing position 113 on the same side; the busbar fixing position 111 is used to fix the integrated busbar 130 of the battery cell module 100, the wire harness fixing position 112 is used to fix the module wire harness 140 of the battery cell module 100, and the screw fixing position 113 is used to fix the mounting screw of the battery cell module 100. In this way, while ensuring that the battery cell module 100 has basic functions, the integration of the end plate 110 is further improved, that is, the space utilization of the end plate 110 is improved, thereby reducing the size of the battery cell module 100, which is beneficial to the miniaturization design of electrical equipment.
[0077] In addition, along the width direction of each row of cells 120, a buffer strip 160 is provided between two adjacent cells 120, with both opposite sides of the buffer strip 160 attached to the two adjacent cells 120. This can buffer and adjust the cells 120 in the battery module, reducing the probability of cell 120 being damaged and extending the service life of the cell module 100.
[0078] It should be noted that the aforementioned buffer strip 160 can be a rubber strip or a silicone strip, or other materials, and this application embodiment does not limit this.
[0079] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 There are two end plates 110 and two rows of battery cells 120; the two rows of battery cells 120 have the same width and are arranged side by side. Along the arrangement direction of each row of battery cells 120, one end plate 110 is set at the first end of the two rows of battery cells 120, and the other end plate 110 is set at the second end of the two rows of battery cells 120.
[0080] When the battery cell module 100 includes two rows of battery cells 120, it not only increases the capacity of the battery cell module 100, but also makes the size of the battery cell module 100 moderate, thus facilitating the installation of the battery cell module 100.
[0081] The cell module 100 also includes an intermediate insulating sheet 170, a liquid cooling plate 180, two end insulating sheets 190, and two annular steel cable ties 1100. The intermediate insulating sheet 170 is sandwiched between the two rows of cells 120. The two end plates 110 are respectively disposed at both ends of the two rows of cells 120 connected in parallel. An end insulating sheet 190 is disposed between each end plate 110 and a cell 120. The liquid cooling plate 180 is connected to the bottom of the multiple rows of cells 120 to absorb the heat generated by the cells 120 during operation. The two annular steel cable ties 1100 are wound around the two rows of cells 120 connected in parallel to form a whole.
[0082] It should be noted that the arrangement direction of each row of 120 cells is the first direction.
[0083] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0084] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0085] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something,” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “above something” or “on top of something,” but also “on something” or “on top of something” without an intermediate feature or layer therebetween, i.e., directly on something.
[0086] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations rotated 90° or be in other orientations, and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An end plate characterized by, The end plate is used for mounting on the cell module; the cell module includes the end plate and at least two rows of cells, and the end plate is connected to the same end of the at least two rows of cells; The end plate has a busbar fixing position, a wire harness fixing position and a screw fixing position on the same side; the busbar fixing position is used to fix the integrated busbar of the battery cell module, the wire harness fixing position is used to fix the module wire harness of the battery cell module, and the screw fixing position is used to fix the mounting screw of the battery cell module.
2. The end plate of claim 1, wherein The battery cells are arranged in two rows, and the end plate is a rectangular plate, which includes a first plate surface, a second plate surface, and a first side surface. The first plate and the second plate are disposed opposite to each other, and the first plate is used to connect with the battery cell; The first side is used to connect the integrated busbar, and the busbar fixing position, the wire harness fixing position and the screw fixing position are all provided on the first side.
3. The end plate of claim 2, wherein The busbar fixing position includes a first busbar fixing groove, a second busbar fixing groove, a third busbar fixing groove and a fourth busbar fixing groove arranged at intervals in sequence; The wall of the first busbar fixing groove and the wall of the fourth busbar fixing groove are respectively connected to two output aluminum bars of the integrated busbar, or the wall of the second busbar fixing groove and the wall of the third busbar fixing groove are respectively connected to the other two output aluminum bars of the integrated busbar.
4. The end plate according to claim 3, characterized in that, The wire harness fixing position includes a first wire harness fixing groove and a second wire harness fixing groove; the first wire harness fixing groove and the second wire harness fixing groove are respectively used to fix and connect the two module wire harnesses. The first wire harness fixing groove is disposed between the first busbar fixing groove and the second busbar fixing groove; the second wire harness fixing groove is disposed between the third busbar fixing groove and the fourth busbar fixing groove; Both the first wire harness fixing groove and the second wire harness fixing groove have wire-passing holes at their bottoms.
5. The end plate according to claim 2, characterized in that, The screw fixing position includes a first screw fixing hole, a second screw fixing hole, and a third screw fixing hole; The first screw fixing hole, the second screw fixing hole, and the third screw fixing hole are all used for threaded connection with the mounting screw; The first screw fixing hole and the third screw fixing hole are located at both ends of the first side along the long side direction; the second screw fixing hole is located in the middle of the first side along the long side direction.
6. The end plate according to claim 2, characterized in that, The second plate surface is provided with a control component fixing position; the control component fixing position is used to fix and connect the control component.
7. The end plate according to claim 6, characterized in that, The control component fixing position includes multiple threaded connection holes, all of which are bolted to the control component.
8. The end plate according to claim 2, characterized in that, The end plate is provided with a plurality of weight-reduction grooves, and the openings of the weight-reduction grooves are located on the second plate surface.
9. A battery cell module, characterized in that, include: The end plate according to any one of claims 1-8; At least two rows of battery cells, with the end plate connected to the same end of at least two rows of battery cells; Integrated busbar; Module wiring harness; The mounting screw is provided on the same side of the end plate, which has a busbar fixing position, a wire harness fixing position and a screw fixing position; the busbar fixing position is used to fix the integrated busbar, the wire harness fixing position is used to fix the module wire harness, and the screw fixing position is used to fix the mounting screw.
10. The cell module according to claim 9, characterized in that, The number of end plates is two, and the number of battery cells is two rows; the two rows of battery cells have the same width and are arranged side by side; Along the arrangement direction of each row of cells, one end plate is disposed at the first end of the two rows of cells, and the other end plate is disposed at the second end of the two rows of cells.