Positive and negative electrode same side output module

Abstract

The utility model discloses a positive and negative pole same side output module, including CCS subassembly, end plate, end insulation piece, terminal fixed seat, steel band, bottom insulation piece and electric core, the end plate is equipped with two and is divided to be equipped with electric core both sides, the end insulation piece is clamped between end plate and electric core, forms the isolated connection of end plate and electric core, the bottom insulation piece is pasted in electric core bottom, and forms bottom protection connection with electric core, the steel band is around in end plate, electric core outer periphery, and forms the bondage fixed connection with end plate, electric core, the terminal fixed seat is fixed in the end plate outer wall of module output side, and forms detachable fixed connection with this end plate, the CCS subassembly covers in electric core top, and forms electric connection and electric parameter acquisition connection with electric core, the utility model discloses novel structure design can realize positive and negative pole same side output, promotes space utilization, reduces false connection and electromagnetic interference risk, guarantees signal acquisition accurate, is applicable to the space limited scene such as energy storage cabinet, electric vehicle battery box.

Description

Technical Field

[0001] This utility model relates to the field of battery module technology, specifically a positive and negative electrode output module on the same side. Background Technology

[0002] In practical applications of battery modules, the positive and negative terminals of traditional battery modules are usually arranged at both ends of the module. This layout causes a series of problems during circuit connection. First, the circuit needs to be routed around both sides of the module, which undoubtedly increases the length of the wiring harness. This not only increases material costs but also causes the wiring harness to occupy more space inside the module, resulting in a significant reduction in space utilization. In space-constrained applications such as energy storage cabinets and electric vehicle battery boxes, the problem of low space utilization is even more prominent, seriously restricting the improvement of overall equipment performance and miniaturization.

[0003] Secondly, the traditional layout increases assembly complexity. Because the positive and negative terminals are separated, assemblers need to operate on both sides of the module separately when connecting cables, which not only prolongs assembly time but also increases the probability of errors during the assembly process. Furthermore, during subsequent maintenance or module replacement, workers need to disassemble the cables from different sides, further increasing the difficulty of operation and the possibility of errors, easily leading to safety hazards.

[0004] Furthermore, traditional battery modules often suffer from severe wire crossing issues, especially in high-frequency or sensitive circuits. This messy wiring can lead to electromagnetic interference (EMI) and signal crosstalk. EMI can affect the normal operation of other electronic components within the module, while signal crosstalk can result in inaccurate electrical parameter signals, thus impacting the external control system's judgment and regulation of the battery module's operating status, and reducing the module's performance stability and reliability. Therefore, it is necessary to design a module with positive and negative terminals on the same side. Utility Model Content

[0005] The purpose of this invention is to provide a positive and negative output module on the same side to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positive and negative pole output module on the same side, including a CCS component, an end plate, an end insulating sheet, a terminal fixing seat, a steel cable tie, a bottom insulating sheet, and a battery cell;

[0007] The end plate is provided in two parts and is respectively located on both sides of the battery cell. The end insulating sheet is sandwiched between the end plate and the battery cell to form an isolation connection between the end plate and the battery cell.

[0008] The bottom insulating sheet is attached to the bottom of the battery cell, forming a bottom protective connection with the battery cell;

[0009] The steel cable ties are wrapped around the end plate and the outer periphery of the battery cell, forming a binding and fixing connection with the end plate and the battery cell.

[0010] The terminal fixing base is fixed to the outer wall of the end plate on the output side of the module, forming a detachable fixed connection with the end plate;

[0011] The CCS component covers the top of the battery cell, forming an electrical connection and an electrical parameter acquisition connection with the battery cell.

[0012] Preferably, the CCS assembly includes a CCS integrated busbar, an FPC, and an isolation plate; the isolation plate is sandwiched between the CCS integrated busbar and the battery cell, forming an insulating and protective connection with the CCS integrated busbar and the battery cell respectively; the isolation plate has a groove corresponding to the CCS integrated busbar, and the CCS integrated busbar is embedded in the corresponding groove, forming a wrap-around positioning connection between the isolation plate and the CCS integrated busbar; the FPC is attached to the side of the CCS integrated busbar away from the isolation plate, forming an electrical parameter acquisition connection with the CCS integrated busbar.

[0013] Preferably, the CCS integrated busbar includes a first busbar, a second busbar, a third busbar, a fourth busbar, and a fifth busbar; the two ends of the first busbar are respectively welded to the terminals of two adjacent cells to form a direct electrical connection between adjacent cells; the two ends of the second busbar span two cells and are welded to the corresponding cell terminals to form a bridging electrical connection with a gap of one cell; the two ends of the third busbar span one cell and are welded to the corresponding cell terminals to form a bridging electrical connection with a gap of zero cells; one end of the fourth busbar and the fifth busbar are respectively welded to the terminal terminals of the end cells, and the other end extends to the terminal fixing base to form a module power output connection.

[0014] Preferably, the second busbar and the third busbar each have an upwardly protruding connecting part integrally formed on the side away from the isolation plate; the FPC is provided with a voltage acquisition nickel sheet on the side facing the second busbar and the third busbar, and the voltage acquisition nickel sheet is welded to the protruding connecting part of the second busbar and the third busbar to form an electrical signal conduction connection between the FPC and the second busbar and the third busbar.

[0015] Preferably, the FPC is provided with a nickel plate, a nickel plate, and an FPC connector; one end of the nickel plate is welded to the non-protruding busbar in the CCS integrated busbar, and the other end is connected to the signal line of the FPC; the nickel plate is connected to the second busbar, and the end of the nickel plate facing away from the second busbar is connected to the signal line of the FPC; the FPC connector is integrated with the signal line of the FPC, and its interface faces the outside of the module to form a signal output connection with the external control system.

[0016] Preferably, the terminal mounting base has conductive busbar fixing holes; the ends of the fourth and fifth busbars of the CCS integrated busbar extending to the terminal mounting base are fixedly connected to the external conductive busbar by bolts, and the external conductive busbar passes through the conductive busbar fixing holes of the terminal mounting base to form a detachable power transmission connection between the module and the external circuit.

[0017] Beneficial effects:

[0018] (1) The present invention has a novel structural design, which can realize the output of positive and negative poles on the same side, improve space utilization, reduce the risk of misconnection and electromagnetic interference, and ensure accurate signal acquisition. It is suitable for space-constrained scenarios such as energy storage cabinets and electric vehicle battery boxes.

[0019] (2) This utility model designs the positive and negative output terminals of the battery module on the same side, changing the traditional layout where the positive and negative terminals of the module are placed at opposite ends. This design eliminates the need for circuit connections to go around both sides of the module, significantly shortening the wire harness length and reducing the space occupied by the wire harness inside the module, thereby improving the space utilization rate of the module. In space-constrained application scenarios such as energy storage cabinets and electric vehicle battery boxes, it can make fuller use of limited space, providing strong support for the miniaturization and lightweight design of equipment.

[0020] (3) In this utility model, the positive and negative poles are arranged on the same side, which facilitates identification and inspection by the staff. During the assembly process, there is no need to connect cables on both sides of the module separately, which simplifies the assembly process, shortens the assembly time, and reduces the probability of errors during the assembly process. At the same time, when repairing or replacing the module in the future, the staff does not need to disassemble the cables from different sides, but only needs to operate on the same side, which greatly reduces the difficulty of operation, reduces the possibility of incorrect operation, improves maintenance efficiency, and reduces maintenance costs.

[0021] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more apparent and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This is a schematic diagram of the CCS component structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the CCS integrated busbar structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the module connected in series according to this utility model. Detailed Implementation

[0027] 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.

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0029] Please see Figures 1-5 This utility model discloses a positive and negative pole same-side output module, including a CCS component 1, an end plate 2, an end insulating sheet 3, a terminal fixing seat 4, a steel cable tie 5, a bottom insulating sheet 6, and a battery cell 7.

[0030] The end plate 2 is provided in two parts and is respectively disposed on both sides of the battery cell 7. The end insulating sheet 3 is sandwiched between the end plate 2 and the battery cell 7 to form an isolation connection between the end plate 2 and the battery cell 7.

[0031] The bottom insulating sheet 6 is attached to the bottom of the battery cell 7, forming a bottom protective connection with the battery cell 7;

[0032] The steel cable tie 5 is wrapped around the end plate 2 and the battery cell 7, forming a binding and fixing connection with the end plate 2 and the battery cell 7;

[0033] The terminal fixing base 4 is fixed to the outer wall of the end plate 2 on the output side of the module, forming a detachable fixed connection with the end plate 2;

[0034] The CCS component 1 covers the top of the battery cell 7, forming an electrical connection and an electrical parameter acquisition connection with the battery cell 7.

[0035] In this invention, the CCS component 1 includes a CCS integrated busbar, an FPC 12, and an isolation plate 13. The isolation plate 13 is sandwiched between the CCS integrated busbar and the battery cell 7, forming an insulating and protective connection with the CCS integrated busbar and the battery cell 7 respectively. The isolation plate 13 has a groove corresponding to the CCS integrated busbar, and the CCS integrated busbar is embedded in the corresponding groove, forming a wrap-around positioning connection between the isolation plate 13 and the CCS integrated busbar. The FPC 12 is attached to the side of the CCS integrated busbar away from the isolation plate 13, forming an electrical parameter acquisition connection with the CCS integrated busbar.

[0036] In this utility model, the CCS integrated busbar includes a first busbar 111, a second busbar 112, a third busbar 113, a fourth busbar 114, and a fifth busbar 115; the two ends of the first busbar 111 are respectively welded to the terminals of two adjacent battery cells 7, forming a direct electrical connection between adjacent battery cells 7; the two ends of the second busbar 112 span two battery cells 7 and are welded to the corresponding terminals of the battery cells 7, forming a bridging electrical connection with a gap of one battery cell 7; the two ends of the third busbar 113 span one battery cell 7 and are welded to the corresponding terminals of the battery cells 7, forming a bridging electrical connection with a gap of zero battery cells 7; the fourth busbar 111... 14. One end of the fifth busbar 115 is welded to the terminal post of the end cell 7, and the other end extends to the terminal fixing seat 4 to form a module power output connection; the second busbar 112 and the third busbar 113 are integrally formed with an upwardly protruding connecting part on the side away from the isolation plate 13; the FPC12 is provided with a voltage acquisition nickel sheet on the side facing the second busbar 112 and the third busbar 113, and the voltage acquisition nickel sheet is welded to the protruding connecting part of the second busbar 112 and the third busbar 113 to form an electrical signal conduction connection between the FPC12 and the second busbar 112 and the third busbar 113.

[0037] In this invention, the FPC12 is provided with nickel strip A121, nickel strip B122, and FPC connector 123; one end of nickel strip A121 is welded to the non-protruding busbar in the CCS integrated busbar, and the other end is connected to the signal line of the FPC12; nickel strip B122 is connected to the second busbar 112, and its end facing away from the second busbar 112 is connected to the signal line of the FPC12; the FPC connector 123 is integrated with the signal line of the FPC12, and its interface faces the outside of the module to form a signal output connection with the external control system.

[0038] In this utility model, the terminal fixing base 4 is provided with conductive bus fixing holes; the ends of the fourth bus 114 and the fifth bus 115 of the CCS integrated bus extend to the terminal fixing base 4 and are fixedly connected to the external conductive bus by bolts, and the external conductive bus passes through the conductive bus fixing holes of the terminal fixing base 4 to form a detachable power transmission connection between the module and the external circuit.

[0039] During module assembly, first prepare all components. Place the two end plates 2 on the workbench and attach end insulating sheets 3 to the inner surface of each end plate 2. Next, neatly arrange the battery cells 7 between the two end plates 2, ensuring uniform spacing between the cells and that both ends of the cells 7 are in close contact with the end insulating sheets 3 on the end plates 2, avoiding direct contact between the cells 7 and the end plates 2. Then, lay a bottom insulating sheet 6 on the bottom of the cells 7, covering the entire bottom area. After the initial assembly of the above components, use a dedicated extrusion device to extrude the module. During extrusion, control the extrusion pressure and speed to ensure a tight fit between the cells 7, end insulating sheets 3, and end plates 2. Subsequently, install steel cable ties 5, wrapping them around the outer circumference of the module. Place two steel cable ties 5 at each of the top and bottom ends of the module to reliably bind the cells 7 and end plates 2. Use a dedicated steel cable tie tightening tool to tighten the steel cable tie 5. During tightening, ensure that the tension of the steel cable tie 5 is uniform to avoid damage to the module components due to excessive local tension. Next, install the terminal fixing seat 4 and fix it to the end plate 2 on the output side of the module with bolts. When fixing, ensure that the terminal fixing seat 4 is accurately positioned and tightly fitted to the end plate 2 to prevent the terminal fixing seat 4 from loosening. Finally, install the CCS assembly 1. Machining grooves on the isolation plate 13 at the positions corresponding to each busbar, the size and shape of the grooves match the busbars to ensure that the busbars can be smoothly embedded in the grooves and that the grooves can surround the busbars. Embed each busbar of the CCS integrated busbar into the corresponding groove of the isolation plate 13, ensuring that the busbars are tightly fitted to the isolation plate 13 without loosening during the embedding process.

[0040] In summary, this utility model features a novel structural design that enables simultaneous output of positive and negative terminals on the same side, improving space utilization, reducing the risk of misconnection and electromagnetic interference, and ensuring accurate signal acquisition. It is suitable for space-constrained applications such as energy storage cabinets and electric vehicle battery boxes.

[0041] The above-described 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A positive and negative output module on the same side, characterized in that: Includes CCS assembly (1), end plate (2), end insulating sheet (3), terminal fixing seat (4), steel cable tie (5), bottom insulating sheet (6) and battery cell (7); The end plate (2) is provided in two and is disposed on both sides of the battery cell (7). The end insulating sheet (3) is sandwiched between the end plate (2) and the battery cell (7) to form an isolation connection between the end plate (2) and the battery cell (7). The bottom insulating sheet (6) is attached to the bottom of the battery cell (7) to form a bottom protective connection with the battery cell (7); The steel cable tie (5) is wrapped around the end plate (2) and the battery cell (7) to form a binding and fixing connection with the end plate (2) and the battery cell (7); The terminal fixing seat (4) is fixed to the outer wall of the end plate (2) on the output side of the module, and forms a detachable fixed connection with the end plate (2); The CCS component (1) covers the top of the battery cell (7) and forms an electrical connection and electrical parameter acquisition connection with the battery cell (7).

2. The positive and negative pole output module according to claim 1, characterized in that: The CCS assembly (1) includes a CCS integrated busbar, an FPC (12), and an isolation plate (13). The isolation plate (13) is sandwiched between the CCS integrated busbar and the battery cell (7), forming an insulating and protective connection with the CCS integrated busbar and the battery cell (7). The isolation plate (13) has a groove corresponding to the CCS integrated busbar, and the CCS integrated busbar is embedded in the corresponding groove to form a wrap-around positioning connection between the isolation plate (13) and the CCS integrated busbar. The FPC (12) is attached to the side of the CCS integrated busbar away from the isolation plate (13) to form an electrical parameter acquisition connection with the CCS integrated busbar.

3. The positive and negative pole output module according to claim 1, characterized in that: The CCS integrated busbar includes a first busbar (111), a second busbar (112), a third busbar (113), a fourth busbar (114), and a fifth busbar (115). The two ends of the first busbar (111) are respectively welded to the poles of two adjacent cells (7) to form a direct electrical connection between adjacent cells (7). The two ends of the second busbar (112) span two cells (7) and are welded to the poles of the corresponding cells (7) to form a bridging electrical connection with a gap of one cell (7). The two ends of the third busbar (113) span one cell (7) and are welded to the poles of the corresponding cells (7) to form a bridging electrical connection with a gap of zero cells (7). One end of the fourth busbar (114) and the fifth busbar (115) are respectively welded to the poles of the end cells (7), and the other end extends to the terminal fixing seat (4) to form a module power output connection.

4. The positive and negative pole output module according to claim 3, characterized in that: The second busbar (112) and the third busbar (113) are integrally formed with an upwardly protruding connecting part on the side away from the isolation plate (13); the FPC (12) is provided with a voltage acquisition nickel sheet on the side facing the second busbar (112) and the third busbar (113), and the voltage acquisition nickel sheet is welded to the protruding connecting part of the second busbar (112) and the third busbar (113) to form an electrical signal conduction connection between the FPC (12) and the second busbar (112) and the third busbar (113).

5. The positive and negative pole output module according to claim 2, characterized in that: The FPC (12) is provided with nickel sheet A (121), nickel sheet B (122) and FPC connector (123); one end of nickel sheet A (121) is welded to the non-protruding busbar in the CCS integrated busbar, and the other end is connected to the signal line of the FPC (12); nickel sheet B (122) is connected to the second busbar (112), and its end facing away from the second busbar (112) is connected to the signal line of the FPC (12); the FPC connector (123) is integrated with the signal line of the FPC (12), and its interface faces the outside of the module to form a signal output connection with the external control system.

6. The positive and negative pole output module according to claim 1, characterized in that: The terminal mounting base (4) has a conductive busbar fixing hole; the fourth busbar (114) and the fifth busbar (115) of the CCS integrated busbar extend to the end of the terminal mounting base (4) and are fixedly connected to the external conductive busbar by bolts, and the external conductive busbar passes through the conductive busbar fixing hole of the terminal mounting base (4) to form a detachable power transmission connection between the module and the external circuit.

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