FPC bending device
By designing an FPC bending device during the battery cell production process, and utilizing the connection unit of the positioning table and bending mechanism with the negative pressure hole, the FPC and the side of the battery cell are brought into contact, solving the problem of lack of positioning capability, improving the level of automation, preventing deviation, and ensuring the bending effect.
Patent Information
- Application Number
- CN202522128248.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
In the existing technology, the FPC bending process in the battery cell production process lacks positioning capability and requires manual intervention, resulting in low automation level and easy displacement of FPC position.
An FPC bending device was designed, which includes a positioning stage and a bending mechanism. A connecting unit is set on the execution end to adapt to the FPC positioning hole. Combined with a negative pressure hole and an adaptive inward shrinkage structure, it ensures that the FPC fits the side of the battery cell. Automatic positioning and anti-displacement are achieved through a rotation and pressing mechanism.
This achieves alignment between the FPC and the side of the battery cell, eliminating the need for manual intervention, improving automation, preventing FPC misalignment, and ensuring bending flatness and stability.
Smart Images

Figure CN224684448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending FPC on battery cells, and more particularly to an FPC bending device. Background Technology
[0002] A battery cell is the energy storage component of a rechargeable battery.
[0003] The employment environment for battery cells is very broad. Depending on the environment, the size and shape of the battery cells are adapted accordingly.
[0004] like Figure 1 As shown, this battery cell 4 is used in a head-mounted VR headset. During the manufacturing process of this battery cell 4, the FPC3 on the battery cell 4 needs to be bent. The specific result of this bending is shown below. Figure 2 As shown. In the first generation of bending equipment, there was a lack of corresponding positioning capability for FPC3, requiring manual intervention, such as manually positioning FPC3 and aligning it with the execution end of the bending equipment as a reference. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides an FPC bending device, which aims to solve the problem of insufficient constant energy capacity.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an FPC bending device, comprising a positioning stage for providing position positioning to the battery cell, and a bending mechanism disposed on the positioning stage for bending the FPC, characterized in that the bending mechanism comprises an execution end for causing the FPC to fold along the arc edge of the battery cell, the execution end having a connecting unit for correcting the position of the FPC, and the connecting unit being adapted to the positioning hole of the FPC.
[0007] The beneficial effects of this utility model are:
[0008] To address the problems of existing technologies, this invention incorporates a connecting unit on the execution end. This allows for simultaneous bending of the FPC and positional correction, ensuring the FPC aligns with the side of the battery cell. This eliminates the need for manual intervention, improves automation, and solves the problem of insufficient positioning capability. Furthermore, the unit's placement prevents secondary FPC position shifts. Since the connecting unit moves with the execution end during bending, this design also addresses potential shifts that may occur during FPC bending.
[0009] Preferably, the connecting unit has an adaptive retractable structure. After contacting the side of the battery cell, the connecting unit retracts into the execution end. This adaptive retractable structure has the characteristic of timely response. It should be noted that during bending, the FPC is attached to the side of the battery cell, and it is tightly attached (there is tape on the side of the battery cell, and the FPC is stuck to the tape after being bent). When the connecting unit contacts the side of the battery cell, the retracting structure can prevent the FPC from being obstructed and unable to continue bending. At the same time, it allows the tape to make smooth contact with the FPC.
[0010] The recessed structure includes a probe and a spring that fit the FPC positioning hole. Both the spring and the probe are located inside the actuator end. Under the action of the spring, the end of the probe is located outside the actuator end. This design features a simple structure and strong stability.
[0011] The actuator is provided with a negative pressure hole. Generally, there are multiple negative pressure holes. In this specific embodiment, there are 4 negative pressure holes.
[0012] The purpose of applying negative pressure is to keep the FPC flat. Since the FPC has a certain length, which can be 5cm or 7cm depending on the customer's requirements, negative pressure is used to smooth it out and ensure the flatness of the FPC when it is folded.
[0013] Specifically, it also includes a rotating structure, with the actuating end being an adsorption pusher connected to the output end of the rotating mechanism.
[0014] The positioning table has an opening area for operation, and a positioning fixture is set in the opening area. The execution end is located in the opening area and bends the battery cell of the positioning fixture.
[0015] Generally, the positioning fixture has an open structure. Specifically, the positioning fixture provides openings on at least two sides of the battery cell to facilitate the insertion, bending and positioning of the battery cell.
[0016] The positioning platform is equipped with a side-push module. The output end of the side-push module is connected to a side-push block. Under the action of the side-push module, the side-push block abuts against the battery cell through any one of the openings, and the remaining opening is used for bending the FPC.
[0017] In this specific embodiment, a pressing mechanism is also included. The pressing mechanism is located above the positioning stage. The output end of the pressing mechanism is equipped with a limiting block and a sliding cylinder. The output end of the sliding cylinder is equipped with a side limiting block. The best positioning effect is to provide pressure to each surface of the battery cell. Even if individual battery cells become loose, the position of the battery cell can be firmly fixed. The limiting block provides downward pressure to the surface of the battery cell. The side limiting block corresponds to the side of the limiting block. Under the action of the sliding cylinder, the side limiting block moves closer to or away from the side of the limiting block. The surface of the side limiting block has a groove for the adsorption push block to enter. Assuming that the first side of the battery cell is the side for FPC bending and bonding, and the FPC partially contacts the first side after bending, the side plate limiting block avoids the adsorption push block through the groove, ensuring the basic bending effect required. It can also allow the side limiting block to provide clamping force to the remaining area of the first side, thereby obtaining the effect of pressing the battery cell from all sides. Attached Figure Description
[0018] Figure 1 This is an assembly diagram of the FPC and the battery cell.
[0019] Figure 2 yes Figure 1 The effect of bending the FPC.
[0020] Figure 3 This is a perspective view of the present invention.
[0021] Figure 4 yes Figure 3 Internal structure diagram.
[0022] Figure 5 yes Figure 4 Partial structural diagram.
[0023] Figure 6 yes Figure 4 The structural diagram of the other part.
[0024] Figure 7 yes Figure 6 Usage status diagram.
[0025] Figure 8 It is a 3D diagram of the bending mechanism.
[0026] Figure 9 yes Figure 8 Enlarged diagram of point A.
[0027] Figure 10 This is a 3D view of the positioning platform.
[0028] Figure 11 yes Figure 10 Enlarged diagram of point B.
[0029] Figure 12 yes Figure 11 Usage status diagram.
[0030] Figure 13 This is a 3D view of the probe. Detailed Implementation
[0031] like Figure 1-13 As shown, an FPC bending device includes a positioning stage 1 for positioning a battery cell 4, and a bending mechanism 2 disposed on the positioning stage 1 for bending an FPC 3. The bending mechanism 2 is characterized in that it includes an execution end 21 for bending the FPC 3 along the arc edge of the battery cell 4. The execution end 21 has a connecting unit 22 for correcting the position of the FPC 3, and the connecting unit 22 is adapted to the positioning hole 31 of the FPC 3.
[0032] The beneficial effects of this utility model are:
[0033] To address the problems of existing technologies, this invention incorporates a connecting unit 22 on the execution end 21. This allows for positional correction of the FPC3 while it is being bent, ensuring that the FPC3 aligns with the side of the battery cell 4. This eliminates the need for manual intervention, improves automation, and solves the problem of insufficient positioning capability. Furthermore, the placement of the connecting unit 22 prevents secondary displacement of the FPC3. Since the execution end 21 bends the FPC3, the connecting unit 22 moves along with the execution end 21 during this process. Therefore, this placement also addresses any displacement that may occur during the bending of the FPC3.
[0034] Preferably, the connecting unit 22 is an adaptive retractable structure. After contacting the side of the battery cell 4, the connecting unit 22 retracts into the execution end 21. This adaptive retractable structure has the characteristic of timely response. It should be noted that during bending, the FPC3 is attached to the side of the battery cell 4, and it is tightly attached (there is tape on the side of the battery cell 4, and the FPC3 is stuck to the tape after being bent). When the connecting unit 22 contacts the side of the battery cell 4, the retracting structure can prevent the FPC3 from being obstructed and unable to continue bending. At the same time, it allows the tape to make smooth contact with the FPC3.
[0035] It should be added that the connecting unit 22 provides a fixed position that is compatible with the positioning hole 31, so that the FPC3 is positioned on the execution end 21 in a specific posture.
[0036] The recessed structure includes a probe 22a that fits the positioning hole 31 of the FPC3 and a spring. Both the spring and the probe 22a are located inside the execution end 21. Under the action of the spring, the end of the probe 22a is located outside the execution end 21. This design has the characteristics of simple structure and strong stability.
[0037] The execution end 21 is provided with a negative pressure hole 21a. Generally, there are multiple negative pressure holes 21a. In this specific embodiment, there are 4 negative pressure holes 21a.
[0038] The purpose of applying negative pressure is to keep the FPC3 flat. The FPC3 has a certain length, which can be 5cm or 7cm depending on the customer's requirements. Within this length, negative pressure is used to smooth it out, ensuring the flatness of the FPC3 when folded.
[0039] Specifically, it also includes a rotating structure located below the positioning stage 1, and the execution end 21 is an adsorption push block connected to the output end of the rotating mechanism.
[0040] The positioning table 1 has an opening area 100 for operation, and a positioning fixture 5 is set in the opening area 100. The execution end 21 is located in the opening area 100 and bends the battery cell 4 of the positioning fixture 5.
[0041] Generally, the positioning fixture 5 has an open structure. Specifically, the positioning fixture 5 provides openings on at least two sides of the battery cell 4 to facilitate the insertion, bending and positioning of the battery cell 4.
[0042] The positioning platform 1 is equipped with a side push module 6. The output end of the side push module 6 is connected to a side push block 61. Under the action of the side push module 6, the side push block 61 abuts against the battery cell 4 through any one of the openings, and the remaining opening is used for bending the FPC3.
[0043] In this specific embodiment, a pressing mechanism 7 is also included. The pressing mechanism 7 is located above the positioning stage 1. The output end of the pressing mechanism 7 is provided with a limiting block 81 and a sliding cylinder 82. The output end of the sliding cylinder 82 is provided with a side limiting block 83. The best positioning effect is to provide pressure to each surface of the battery cell 4. Even if individual battery cells 4 become loose, the position of the battery cell 4 can be firmly fixed. The limiting block 81 provides downward pressure to the surface of the battery cell 4. The side limiting block 83 corresponds to the side of the limiting block 81. Under the action of the sliding cylinder 82, The side limiting block 83 moves closer to or further away from the side of the limiting block 81. The surface of the side limiting block 83 has a pre-reserved slot 83-1 for the adsorption push block to enter. Assuming that the first side 41 of the battery cell 4 is the side for the FPC3 to be bent and fit together, and the FPC3 is partially in contact with the first side 41 after bending, the side limiting block 81 avoids the adsorption push block through the slot 83-1, ensuring the basic bending effect required, and also allowing the side limiting block 83 to provide clamping force on the remaining area of the first side 41, thereby obtaining the effect of clamping the battery cell 4 from all sides.
[0044] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An FPC bending device, comprising a positioning stage for positioning the battery cell, and a bending mechanism disposed on the positioning stage for bending the FPC, characterized in that, The bending mechanism includes an actuating end that folds the FPC along the arc edge of the battery cell. The actuating end has a connecting unit that corrects the position of the FPC and the connecting unit is adapted to the positioning hole of the FPC.
2. The FPC bending device according to claim 1, characterized in that, The connection unit is an adaptive retractable structure. After contacting the side of the battery cell, the connection unit retracts into the execution end.
3. The FPC bending device according to claim 2, characterized in that, The recessed structure includes a probe and a spring that are adapted to the FPC positioning hole. Both the spring and the probe are located inside the actuator end. Under the action of the spring, the end of the probe is located outside the actuator end.
4. The FPC bending device according to claim 1, characterized in that, The actuator is equipped with multiple negative pressure holes.
5. The FPC bending device according to claim 1, characterized in that, It also includes a rotating structure, with the actuating end being an adsorption pusher connected to the output end of the rotating mechanism.
6. The FPC bending device according to claim 1, characterized in that, The positioning table has an opening area for operation, and a positioning fixture is set in the opening area. The execution end is located in the opening area and bends the battery cell of the positioning fixture.
7. An FPC bending device according to claim 6, characterized in that, The positioning fixture provides openings on at least two sides of the battery cell. The positioning stage is equipped with a side-push module, and the output end of the side-push module is connected to a side-push block. Under the action of the side-push module, the side-push block abuts against the battery cell through any one of the openings.
8. An FPC bending device according to claim 5, characterized in that, It also includes a pressing mechanism located above the positioning platform. The output end of the pressing mechanism is equipped with a limiting block and a slide cylinder. The output end of the slide cylinder is equipped with a side limiting block. The limiting block provides downward pressure to the surface of the battery cell. The side limiting block corresponds to the side of the limiting block. The surface of the side limiting block has a groove for the adsorption push block to enter.