Circuit board reinforcing plate of battery module

Abstract

The utility model relates to the technical field of circuit boards, in particular to a circuit board reinforcing plate of a battery module, which comprises a first FPC (flexible printed circuit) and a second FPC, the second FPC is fixedly connected to the outer side of the first FPC, the top end of the second FPC is fixedly connected with an electronic device, the bottom end of the second FPC is fixedly connected with a bent plate, the bottom end of the bent plate is fixedly connected with a third FPC, and the third FPC is fixedly connected with the electronic device. The bottom end of the third FPC is fixedly connected with a fixing sheet, and the bottom end of the fixing sheet is fixedly connected with a tab bonding pad; the first reinforcing plate is fixedly connected with one side, close to the second FPC, of the third FPC, and the bottom end of the second FPC is fixedly connected with a second reinforcing plate; according to the flexible printed circuit board, the first FPC, the second FPC and the third FPC are integrated, circuits in the first FPC, the second FPC and the third FPC are simplified, meanwhile, the production cost is reduced, through pasting of the second FPC and the third FPC, a through hole is not needed any more, the part and wiring space is further improved, and the whole flexible printed circuit board is more miniaturized.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and more specifically, to a circuit board reinforcement plate for battery modules. Background Technology

[0002] Lithium-ion batteries are currently the most widely used batteries in electronic products. However, during use, they may be damaged due to overcharging, water ingress, short circuits, etc., which could lead to danger. Therefore, circuit boards are used for protection. As electronic products are becoming smaller and lighter, the internal battery packaging also needs to be smaller, which in turn requires the battery protection circuit board to be smaller. However, in the current technology, R-FPCB is generally used, which can help reduce the overall size of the protection circuit board to some extent, but the volume is still relatively large. In addition, the manufacturing process is relatively complex and the processing cost is high. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides a circuit board reinforcement plate for the battery module, which has the advantage of being more simplified.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a circuit board reinforcement plate for a battery module, including a first FPC, and further comprising:

[0005] The second FPC is fixedly connected to the outside of the first FPC. An electronic device is fixedly connected to the top of the second FPC. A bending plate is fixedly connected to the bottom of the second FPC. A third FPC is fixedly connected to the bottom of the bending plate. A fixing plate is fixedly connected to the bottom of the third FPC. A tab pad is fixedly connected to the bottom of the fixing plate.

[0006] The first reinforcing plate is fixedly connected to the side of the third FPC close to the second FPC. The bottom end of the second FPC is fixedly connected to the second reinforcing plate. The side of the curved plate away from the second FPC is curved. The second FPC can rotate around the curved plate.

[0007] The beneficial effects of adopting the above technical solution are: the installation can be completed in one process by using electronic components and electrode pads, which improves production efficiency. Furthermore, the first, second, and third FPCs only need to have electronic components arranged on one side, which simplifies the internal circuitry of the first, second, and third FPCs and reduces production costs. In addition, by bonding the second and third FPCs, through-holes are no longer needed, which further improves the space for components and wiring, making the whole unit more compact.

[0008] As a further improvement of this utility model, a first reinforcing rod is fixedly connected to the top end of the first FPC, a second reinforcing rod is fixedly connected to the top end of the first FPC, and a bottom reinforcing rod is fixedly connected to the bottom end of the first FPC.

[0009] The beneficial effects of adopting the above technical solution are as follows: by setting the first reinforcing rod, the second reinforcing rod, and the bottom reinforcing rod, the overall strength of the first FPC is improved, thereby avoiding the deformation of the first FPC under external force during installation. Furthermore, the first reinforcing rod, the second reinforcing rod, and the bottom reinforcing rod can isolate the first FPC from the electronic equipment, avoiding direct contact and preventing damage.

[0010] As a further improvement of this utility model, an adhesive plate is fixedly connected to the bottom end of the first reinforcing plate, and the first reinforcing plate and the second reinforcing plate are glued together by the adhesive plate.

[0011] The beneficial effects of adopting the above technical solution are: through the adhesive plate at the bottom of the first reinforcing plate, the first reinforcing plate and the second reinforcing plate can be glued together, thereby enabling the second FPC and the third FPC to be bonded together, and improving the strength of the connection between the second FPC and the third FPC.

[0012] As a further improvement of this utility model, a connecting plate is fixedly connected to the right side of the first FPC, and an output terminal is provided on the right side of the connecting plate.

[0013] The beneficial effects of adopting the above technical solution are: by setting the output terminal, it is possible to output electrical signals through the output terminal, and by setting the connection board, the signal can be transmitted through the first FPC, the second FPC, and the third FPC.

[0014] As a further improvement of this utility model, there are two electrode pads, and both electrode pads are fixedly installed at the bottom of the third FPC.

[0015] The beneficial effect of adopting the above technical solution is that by using two electrode pads, it is convenient to stably connect with the electrode pads located on the same plane on the battery cell, thereby ensuring the stability of battery performance.

[0016] As a further improvement of this utility model, both the first reinforcing plate and the second reinforcing plate are rectangular, and the four corners of the first reinforcing plate and the second reinforcing plate are curved surfaces.

[0017] The beneficial effects of adopting the above technical solution are: by making the four corners of the first and second reinforcing plates curved, the processing difficulty is reduced, and the situation where the four corners of the first and second reinforcing plates are too sharp and inconvenient for employees to handle is avoided.

[0018] As a further improvement of this utility model, the first reinforcing rod and the second reinforcing rod are installed crosswise, and the bottom reinforcing rod is X-shaped;

[0019] The beneficial effect of adopting the above technical solution is that the shape of the first reinforcing rod, the second reinforcing rod, and the bottom reinforcing rod improves the resistance to force from different directions, thereby improving the structural strength of the first FPC.

[0020] As a further improvement of this utility model, the electronic device is electrically connected to the second FPC, and the first FPC, the second FPC, and the third FPC are electrically connected to each other;

[0021] The beneficial effect of adopting the above technical solution is that by electrically connecting the electronic device to the second FPC, the second FPC can transmit the signal of the electronic device to the first FPC, and then output the signal through the output terminal. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the first FPC connection in the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection of the first reinforcing rod in the structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the adhesive plate connection of the present invention.

[0026] Figure 5 This is a schematic diagram of the connection of the electrode tab pads in this utility model.

[0027] In the diagram: 1. First FPC; 2. Connecting plate; 3. Output terminal; 4. Second FPC; 5. Electronic component; 6. Bending plate; 7. Third FPC; 8. First reinforcing plate; 9. Second reinforcing plate; 10. Adhesive plate; 11. Fixing piece; 12. Electrode pad; 13. First reinforcing rod; 14. Second reinforcing rod; 15. Bottom reinforcing rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5As shown, this utility model provides a circuit board reinforcement plate for a battery module, including a first FPC1, and further including:

[0030] The second FPC4 is fixedly connected to the outside of the first FPC1. The top of the second FPC4 is fixedly connected to an electronic device 5. The bottom of the second FPC4 is fixedly connected to a bending plate 6. The bottom of the bending plate 6 is fixedly connected to a third FPC7. The bottom of the third FPC7 is fixedly connected to a fixing plate 11. The bottom of the fixing plate 11 is fixedly connected to a tab pad 12.

[0031] The first reinforcing plate 8 is fixedly connected to the side of the third FPC7 close to the second FPC4. The bottom end of the second FPC4 is fixedly connected to the second reinforcing plate 9. The side of the curved plate 6 away from the second FPC4 is curved, and the second FPC4 can rotate around the curved plate 6.

[0032] The beneficial effects of adopting the above technical solution are as follows: the installation can be completed in one process by using electronic components 5 and electrode pads 12, which improves production efficiency. Furthermore, the first FPC1, the second FPC4, and the third FPC7 only require the arrangement of electronic components on one side, which simplifies the internal circuitry of the first FPC1, the second FPC4, and the third FPC7 and reduces production costs. In addition, by pasting the second FPC4 and the third FPC7, through-holes are no longer needed, which further improves the space for components and wiring, making the whole unit more compact.

[0033] In one embodiment of the present invention, a first reinforcing rod 13 is fixedly connected to the top end of the first FPC1, a second reinforcing rod 14 is fixedly connected to the top end of the first FPC1, and a bottom reinforcing rod 15 is fixedly connected to the bottom end of the first FPC1.

[0034] The beneficial effects of adopting the above technical solution are as follows: by setting the first reinforcing rod 13, the second reinforcing rod 14, and the bottom reinforcing rod 15, the overall strength of the first FPC1 is improved, thereby avoiding the deformation of the first FPC1 under external force during installation. Furthermore, the first reinforcing rod 13, the second reinforcing rod 14, and the bottom reinforcing rod 15 can isolate the first FPC1 from the electronic equipment, avoiding direct contact and damage.

[0035] In one embodiment of this utility model, an adhesive plate 10 is fixedly connected to the bottom end of the first reinforcing plate 8, and the first reinforcing plate 8 and the second reinforcing plate 9 are glued together by the adhesive plate 10.

[0036] The beneficial effects of adopting the above technical solution are: the adhesive plate 10 at the bottom of the first reinforcing plate 8 enables the first reinforcing plate 8 and the second reinforcing plate 9 to be bonded together, thereby enabling the second FPC4 and the third FPC7 to be bonded together, and improving the strength of the connection between the second FPC4 and the third FPC7.

[0037] In one embodiment of this utility model, a connecting plate 2 is fixedly connected to the right side of the first FPC1, and an output terminal 3 is provided on the right side of the connecting plate 2.

[0038] The beneficial effects of adopting the above technical solution are: by setting the output terminal 3, electrical signals can be output through the output terminal 3, and by setting the connecting plate 2, the signals can be transmitted through the first FPC1, the second FPC4, and the third FPC7.

[0039] In one embodiment of this utility model, there are two electrode pads 12, and both electrode pads 12 are fixedly installed at the bottom end of the third FPC7.

[0040] The beneficial effects of adopting the above technical solution are: by using two tab pads 12, it is convenient to stably connect with the tabs located on the same plane on the battery cell, thereby ensuring the stability of battery performance.

[0041] In one embodiment of this utility model, both the first reinforcing plate 8 and the second reinforcing plate 9 are rectangular, and the four corners of the first reinforcing plate 8 and the second reinforcing plate 9 are curved surfaces.

[0042] The beneficial effects of adopting the above technical solution are: by making the four corners of the first reinforcing plate 8 and the second reinforcing plate 9 curved, the processing difficulty is reduced, and the situation where the four corners of the first reinforcing plate 8 and the second reinforcing plate 9 are too sharp and inconvenient for employees to handle is avoided.

[0043] In one embodiment of this utility model, the first reinforcing rod 13 and the second reinforcing rod 14 are installed crosswise, and the bottom reinforcing rod 15 is X-shaped;

[0044] The beneficial effect of adopting the above technical solution is that the shape of the first reinforcing rod 13, the second reinforcing rod 14, and the bottom reinforcing rod 15 improves the resistance to force from different directions, thereby improving the structural strength of the first FPC1.

[0045] In one embodiment of this utility model, the electronic device 5 is electrically connected to the second FPC4, and the first FPC1, the second FPC4, and the third FPC7 are electrically connected to each other.

[0046] The beneficial effect of adopting the above technical solution is that by electrically connecting the electronic device 5 with the second FPC4, the second FPC4 can transmit the signal of the electronic device 5 to the first FPC1, and then output the signal through the output terminal 3.

[0047] The working principle and usage process of this utility model are as follows: the electronic device 5 and the tab pad 12 can be installed in one process. Then, the second FPC4 and the third FPC7 are bent by the bending plate 6, and the first reinforcing plate 8 and the second reinforcing plate 9 are pasted together by the adhesive plate 10, so as to reinforce the second FPC4 and the third FPC7 by the first reinforcing plate 8 and the second reinforcing plate 9.

[0048] Next, the first FPC1 is reinforced as a whole by the first reinforcing rod 13, the second reinforcing rod 14, and the bottom reinforcing rod 15, and the first reinforcing rod 13, the second reinforcing rod 14, and the bottom reinforcing rod 15 support the installation position of the first FPC1 and the electronic device, thereby preventing the first FPC1 from directly contacting the electronic device.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board reinforcement board for a battery module, characterized in that, Including the first FPC, it also includes: The second FPC is fixedly connected to the outside of the first FPC. An electronic device is fixedly connected to the top of the second FPC. A bending plate is fixedly connected to the bottom of the second FPC. A third FPC is fixedly connected to the bottom of the bending plate. A fixing plate is fixedly connected to the bottom of the third FPC. A tab pad is fixedly connected to the bottom of the fixing plate. The first reinforcing plate is fixedly connected to the side of the third FPC close to the second FPC. The bottom end of the second FPC is fixedly connected to the second reinforcing plate. The side of the curved plate away from the second FPC is curved. The second FPC can rotate around the curved plate. A first reinforcing rod is fixedly connected to the top end of the first FPC, a second reinforcing rod is fixedly connected to the top end of the first FPC, and a bottom reinforcing rod is fixedly connected to the bottom end of the first FPC; both the first reinforcing plate and the second reinforcing plate are rectangular, and the four corners of the first reinforcing plate and the second reinforcing plate are curved surfaces; the first reinforcing rod and the second reinforcing rod are installed in a cross pattern, and the bottom reinforcing rod is X-shaped.

2. The circuit board reinforcement plate for the battery module according to claim 1, characterized in that: An adhesive plate is fixedly connected to the bottom end of the first reinforcing plate, and the first and second reinforcing plates are glued together by the adhesive plate.

3. The circuit board reinforcement plate for the battery module according to claim 1, characterized in that: A connecting plate is fixedly connected to the right side of the first FPC, and an output terminal is provided on the right side of the connecting plate.

4. The circuit board reinforcement plate for the battery module according to claim 1, characterized in that: There are two tab pads, and both tab pads are fixedly installed at the bottom of the third FPC.

5. The circuit board reinforcement plate for the battery module according to claim 1, characterized in that: The electronic device is electrically connected to the second FPC, and the first FPC, the second FPC, and the third FPC are electrically connected to each other.

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