Epoxy plate structure of power battery module

Abstract

The utility model belongs to power battery technical field discloses a kind of epoxy plate structure of power battery module, including epoxy plate, epoxy plate thickness is not less than 5mm, signal line clamping groove, cell connecting piece clamping groove are set on epoxy plate.The utility model has the following advantages and effects:the utility model selects 5mm epoxy plate to do insulating plate, thickness greatly increases, not easy to be transformed, break, and insulation coefficient is higher.Signal line clamping groove and cell connecting piece clamping groove are directly made on epoxy plate, let signal line and connecting piece all be below the upper surface of epoxy plate, and size position are standardized, the utility model is well protected signal line and cell connecting piece are not damaged by external force extrusion, while guaranteeing that the made circuit is beautiful and saves labor.Cell connecting piece clamping groove can make connecting piece accurately align cell pole and weld, after the uniform position of connecting piece on module, the made product is standard and beautiful, and worker is convenient to operate.Greatly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to an epoxy plate structure for a power battery module. Background Technology

[0002] During the manufacturing of power battery modules, epoxy boards are used for insulation when assembling battery cells. Existing epoxy boards are typically only 0.5mm thick, making them prone to damage. Signal lines are usually routed on the epoxy board, but due to its thinness, it's difficult to secure them properly. Furthermore, the lack of protection around the signal lines makes them susceptible to damage from external forces, posing a safety risk. The connecting tabs used to connect the cells also lack fixed positions, leading to misalignment during production. This results in weak welds, affecting product quality, causing inconvenience for workers, and reducing production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an epoxy board structure for a power battery module that can accommodate signal lines and cell connecting pieces.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an epoxy board structure for a power battery module, comprising an epoxy board with a thickness of not less than 5mm, and signal line slots and cell connection piece slots provided on the epoxy board.

[0005] A further feature of this invention is that a fixing component is provided in the signal line slot, the fixing component includes a cover plate and a plurality of clips disposed on the cover plate, the plurality of clips being arranged along the length direction of the cover plate, and the clips including two C-shaped arc-shaped elastic pieces.

[0006] A further feature of this invention is that the fixing assembly includes a base plate and side plates distributed on both sides of the base plate. The cover plate has two slots, and the two side plates pass through the two slots respectively. A plurality of elastic connecting ropes are provided between the base plate and the cover plate. The base plate, the two side plates, and the cover plate together form a cavity, and the cavity is filled with polytetrafluoroethylene.

[0007] By employing the above technical solution, if the signal cable overheats, the accumulated heat is transferred to the PTFE (polytetrafluoroethylene) inside the cavity through the cover plate. The PTFE expands upon heating, pressing the cover plate away from the bottom wall of the signal cable slot, thus exposing the signal cable for heat dissipation and preventing heat buildup inside the slot. As the PTFE temperature gradually decreases, its volume shrinks, and the elasticity of the connecting rope pushes the cover plate closer to the bottom plate, allowing the signal cable to re-enter the signal cable slot.

[0008] A further feature of this invention is that the base plate is bonded and fixed to the bottom of the signal line slot.

[0009] A further feature of this invention is that the number of the fixing components is multiple.

[0010] A further feature of this invention is that the cover plate is made of high thermal conductivity epoxy resin.

[0011] A further feature of this invention is that the epoxy board has a thickness of 5mm.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a 5mm thick epoxy board as the insulation board, significantly increasing its thickness, making it less prone to deformation and damage, and resulting in a higher insulation coefficient. Signal wire slots and battery cell connecting plate slots are directly made on the epoxy board, ensuring that the signal wires and connecting plates are all below the surface of the epoxy board, with standardized size and position. This utility model effectively protects the signal wires and battery cell connecting plates from external pressure damage, while also ensuring aesthetically pleasing wiring and saving labor. The battery cell connecting plate slots allow for accurate alignment of the connecting plates with the battery cell terminals for welding. With standardized positions for the connecting plates on the module, the finished product is standardized and aesthetically pleasing, and worker operation is convenient. This greatly improves production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the fixing component structure of this utility model.

[0015] In the diagram, 1 is an epoxy board; 2 is a signal cable slot; 3 is a battery cell connector slot; 4 is a fixing component; 41 is a base plate; 42 is a side plate; 43 is a cover plate; 431 is a slot; 44 is a clip; 45 is an elastic connecting rope; and 46 is a chamber. Detailed Implementation

[0016] An epoxy board structure for a power battery module, such as Figures 1 to 2As shown, the device includes an epoxy board 1 with a thickness of 5mm. The epoxy board 1 has signal cable slots 2 and battery cell connector slots 3. The signal cable slots 2 have multiple fixing components 4, each including a base plate 41, two side plates 42 distributed on both sides of the base plate 41, a cover plate 43, and multiple clips 44 on the cover plate 43. The base plate 41 is bonded to the bottom wall of the signal cable slots 2. The base plate 41 and the two side plates 42 are integrally formed. The cover plate 43 is made of high thermal conductivity epoxy resin and has two slots 431 through which the two cover plates 43 pass. The multiple clips 44 are distributed along the length of the cover plate 43, and each clip 44 includes two C-shaped arc-shaped elastic pieces. Multiple elastic connecting ropes 45 are provided between the base plate 41 and the cover plate 43, with both ends of the elastic connecting ropes 45 fixed to the base plate 41 and the cover plate 43 respectively. The base plate 41, the two side plates 42, and the cover plate 43 together form a cavity 46, which is filled with polytetrafluoroethylene. The signal cable is placed into the signal cable slot 2, and the clip 44 clamps the signal cable. The battery cell connector is placed into the battery cell connector slot 3, with the signal cable and connector all below the upper surface of the epoxy board 1.

Claims

1. An epoxy plate structure of a power battery module, characterized in that: The epoxy board (1) has a thickness of not less than 5 mm. The epoxy board (1) has a signal line slot (2) and a battery cell connector slot (3). The signal line slot (2) has a fixing component (4). The fixing component (4) includes a cover plate (43) and multiple clips (44) disposed on the cover plate (43). The multiple clips (44) are arranged along the length of the cover plate (43). The clips (44) include two C-shaped arc elastic pieces.

2. The structure of the epoxy plate (1) of the power battery module according to claim 1, characterized in that: The fixing component (4) also includes a base plate (41) and side plates (42) distributed on both sides of the base plate (41). The cover plate (43) has two slots (431), and the two side plates (42) pass through the two slots (431) respectively. A number of elastic connecting ropes (45) are provided between the base plate (41) and the cover plate (43). The base plate (41), the two side plates (42), and the cover plate (43) together form a cavity (46), which is filled with polytetrafluoroethylene.

3. The epoxy board (1) structure of a power battery module according to claim 2, characterized in that: The base plate (41) is bonded and fixed to the bottom of the signal line slot (2).

4. The epoxy board (1) structure of a power battery module according to claim 1, characterized in that: The cover plate (43) is made of high thermal conductivity epoxy resin.

5. The epoxy board (1) structure of a power battery module according to claim 1, characterized in that: The number of fixed components (4) is multiple.

6. The structure of the epoxy plate (1) of the power battery module according to claim 1, characterized in that: The epoxy board (1) has a thickness of 5 mm.

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