A low-resistance industrial control camera FPC
By enhancing the support and limiting capabilities of the FPC board through structures such as limiting frames and curved plates, and combining them with the insulating layer of polyimide material, the problem of circuit breakage during the bending process of the FPC board is solved, achieving higher toughness and insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENGTAI SMART INNOVATION TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-30
AI Technical Summary
Existing low-resistance industrial control camera FPCs are prone to circuit breakage or tearing during bending due to excessively small bending radius, and the sparse wiring at corners makes them susceptible to internal damage.
The FPC board adopts a combination structure of limiting frame, arc plate, fixing cylinder, screw and screw hole, combined with insulation layer and bending layer made of polyimide material, to enhance the support and limiting ability and insulation performance of the FPC board, prevent the bending radius from being too small and reduce line damage.
It effectively avoids the risk of breakage and tearing of FPC boards during bending, improves toughness and insulation performance, and adapts to the needs of different application scenarios.
Smart Images
Figure CN224439287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flexible circuit board technology, and in particular to a low-resistance industrial control camera FPC. Background Technology
[0002] Low-resistance industrial camera FPC is a connection component used for industrial control cameras. It features low resistance, high flexibility, and durability. The surface is covered with an insulating film, wrapped with an outer protective layer, and has a reinforcing layer in the middle to improve its toughness. It has many advantages that rigid printed circuit boards do not have, such as being able to be freely bent, rolled, and folded. It can be arranged arbitrarily according to spatial layout requirements and can move and stretch arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection.
[0003] A search revealed that Chinese Patent Publication No. CN216775113U discloses a low-resistance industrial control camera FPC, which features a simple structure and novel design. The addition of a reinforcing layer improves the device's toughness, making it easier to fold and bend. The wiring components facilitate the installation and disassembly of the device, enhancing its practicality and stability.
[0004] In actual use, when the aforementioned FPC board is bent, it is at risk of having an excessively small bending radius due to pressure from the device casing or operator error, which may lead to breakage of the internal circuitry. In addition, if the FPC's wiring is sparse, especially at corners, the internal circuitry is also prone to tearing. To address these issues, a low-resistance industrial control camera FPC is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a low-resistance industrial control camera FPC, which aims to improve the problem that the internal circuits are prone to breakage when the bending radius of the FPC board is too small in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a low-resistance industrial control camera FPC, comprising an FPC board, with connecting parts fixedly connected to both the upper and lower ends of the front side of the FPC board, a limiting frame sleeved on the outer side of the FPC board, an arc-shaped plate disposed inside the limiting frame, a fixing cylinder fixedly connected to the front surface of the arc-shaped plate, a screw inserted into the inside of the fixing cylinder, a screw hole opened on the front surface of the limiting frame, and a guide unit disposed on the outer side of the arc-shaped plate, the guide unit being used to guide and limit the movement of the arc-shaped plate.
[0007] As a further description of the above technical solution:
[0008] The screw is connected to the internal thread of the screw hole.
[0009] As a further description of the above technical solution:
[0010] The inner surfaces of the left and right sides of the arc-shaped plate are in contact with the inner wall of the limiting frame.
[0011] As a further description of the above technical solution:
[0012] The back center of the arc-shaped plate has a planar structure, and a front rubber pad is fixedly connected to the back center of the arc-shaped plate.
[0013] As a further description of the above technical solution:
[0014] A rear rubber pad is fixedly connected to the rear inner wall surface of the limiting frame.
[0015] As a further description of the above technical solution:
[0016] The guiding unit includes a guide block, which is fixedly connected to the outer surface of the arc plate. Guide grooves are provided on the inner wall surfaces of the front and rear sides of the limiting frame.
[0017] As a further description of the above technical solution:
[0018] The number of guide blocks is two, and the two guide blocks are fixedly connected to the front and rear surfaces of the arc plate respectively. The two guide blocks are slidably connected to the interior of the two guide grooves on the front and rear sides of the limiting frame respectively.
[0019] As a further description of the above technical solution:
[0020] A cross groove is formed on the right side surface of the screw.
[0021] As a further description of the above technical solution:
[0022] The FPC board is wrapped with an insulating layer on the outside, an adhesive layer is provided on the outside of the insulating layer, and a protective layer is sleeved on the outside of the adhesive layer.
[0023] As a further description of the above technical solution:
[0024] A bent layer is fixedly connected to the gap between the upper and lower surfaces of the adhesive layer and the inner wall of the protective layer.
[0025] This utility model has the following beneficial effects:
[0026] 1. In this utility model, the combination of the limiting frame, arc plate, fixing cylinder, screw, cross groove and screw hole can support and limit the internal bending position of the FPC board, so that the FPC board can maintain a certain curvature during bending, avoiding the situation that the radius of the FPC board is too small when bending, reducing the risk of breakage or tearing. At the same time, the limiting frame can be moved and fixed at any position on the outside of the FPC board, which is convenient for supporting and limiting different positions on the FPC board, and the operation is simple.
[0027] 2. In this utility model, by using polyimide material to make an insulating layer, the overall insulation performance of the FPC can be improved. Furthermore, by using a bending layer made of polyimide reinforcing plate, the toughness and bending resistance of the FPC can be improved, meeting the needs of different application scenarios and reducing the occurrence of internal circuit breakage in the FPC board. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall low-resistance industrial control camera FPC proposed in this utility model;
[0029] Figure 2 This is a schematic diagram of the inside of the limiting frame of a low-resistivity industrial control camera FPC proposed in this utility model;
[0030] Figure 3 This is a schematic diagram showing the disassembled limiting frame and arc plate of a low-resistivity industrial control camera FPC proposed in this utility model.
[0031] Figure 4 This is a schematic diagram of the arc plate, guide block, and front rubber pad of a low-resistance industrial control camera FPC proposed in this utility model;
[0032] Figure 5 This is a schematic diagram of the front cross-section of the FPC board of a low-resistivity industrial control camera FPC proposed in this utility model.
[0033] Figure 6 This invention proposes a low-resistance industrial control camera FPC. Figure 5 A schematic diagram of part A.
[0034] Legend:
[0035] 1. FPC board; 2. Connecting part; 3. Limiting frame; 4. Curved plate; 5. Fixing cylinder; 6. Screw; 7. Cross groove; 8. Screw hole; 9. Front rubber pad; 10. Rear rubber pad; 111. Guide block; 112. Guide groove; 12. Insulation layer; 13. Adhesive layer; 14. Bending layer; 15. Protective layer. Detailed Implementation
[0036] 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.
[0037] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a low-resistance industrial control camera FPC, including an FPC board 1. Connecting parts 2 are fixedly connected to the upper and lower ends of the front side of the FPC board 1. The connecting parts 2 can be inserted into the pre-set connectors on the device to complete the connection, making operation simple. Since the FPC board 1 is flexible and can be freely bent, rolled, and folded, it can be arranged arbitrarily according to spatial layout requirements, facilitating connection. The above structures are all existing technologies in the field and will not be described in detail here. A limiting frame 3 is sleeved on the outer side of the FPC board 1. The limiting frame 3 can move on the FPC board 1, thereby allowing arbitrary bending of the FPC board 1. The positioning frame 3 is supported at the location, and a rear rubber pad 10 is fixedly connected to the rear inner wall surface of the limiting frame 3. This can prevent the FPC board 1 from making hard contact with the rear inner wall of the limiting frame 3, reduce wear, and extend the service life of the FPC board 1. An arc plate 4 is set inside the limiting frame 3. The left and right inner wall surfaces of the arc plate 4 are in contact with the inner wall of the limiting frame 3. The limiting frame 3 can initially guide and limit the movement of the arc plate 4, preventing the arc plate 4 from moving and falling in the left and right directions. The back center of the arc plate 4 is set with a planar structure, which can increase the compression contact area between the arc plate 4 and the outer wall of the FPC board 1, and improve the limiting effect on the FPC board 1.
[0038] Reference Figure 2 - Figure 4A front rubber pad 9 is fixedly connected to the center of the back of the curved plate 4 to prevent the curved plate 4 from making hard contact with the FPC board 1, which would cause severe wear. A fixing cylinder 5 is fixedly connected to the front surface of the curved plate 4. When the fixing cylinder 5 moves, it will drive the curved plate 4 to move synchronously. A screw 6 is inserted inside the fixing cylinder 5. When the screw 6 moves to the rear, it will push the curved plate 4, causing the curved plate 4 to move backward synchronously. At the same time, the fixing cylinder 5 is inserted on the outside of the screw 6, which can guide and limit the movement of the fixing cylinder 5 and the curved plate 4, preventing the curved plate 4 from falling out of the limiting frame 3 and affecting the operating efficiency. A cross groove 7 is opened on the right side surface of the screw 6. The operator can use a cross screwdriver to quickly rotate the screw 6 with the cross groove 7. A screw hole 8 is opened on the front surface of the limiting frame 3. The screw 6 is connected to the internal thread of the screw hole 8. When the screw 6 rotates, it can move linearly in the back and forth direction relative to the limiting frame 3, thereby pushing the curved plate 4.
[0039] A guide unit is provided on the outer side of the arc plate 4. The guide unit includes a guide block 111, which is fixedly connected to the outer surface of the arc plate 4. When the arc plate 4 moves, it will drive the guide block 111 to move synchronously. Guide grooves 112 are provided on the inner wall surfaces of the front and rear sides of the limiting frame 3. There are two guide blocks 111, which are fixedly connected to the front and rear surfaces of the arc plate 4 respectively. The two guide blocks 111 are slidably connected to the interior of the two guide grooves 112 on the front and rear sides of the limiting frame 3 respectively. The guide blocks 111 can only guide the linear movement in the front and rear direction inside the grooves 112, thereby further guiding and limiting the movement of the arc plate 4, so that the arc plate 4 can only move in a linear back and forth direction, avoiding deviation and jamming.
[0040] Reference Figure 5 - Figure 6The outer side of the FPC board 1 is wrapped with an insulating layer 12, which is made of polyimide material. This insulating layer 12 has excellent heat resistance, mechanical strength, and electrical insulation, and can withstand high-temperature environments, thus improving the insulation performance of the FPC board 1. An adhesive layer 13 is disposed on the outer side of the insulating layer 12. The adhesive layer 13 uses an acrylic adhesive, which has good flexibility, chemical resistance, and bonding strength, making it suitable for flexible applications requiring frequent bending and folding. It is used for bonding and fixing multiple layers. A protective film is fitted on the outer side of the adhesive layer 13. The protective layer 15 can cover and protect the entire outer side of the FPC board 1, improving the protection effect of the FPC board 1. The upper and lower surfaces of the adhesive layer 13 and the inner wall of the protective layer 15 are fixedly connected to the bending layer 14. The bending layer 14 is made of polyimide (PI) reinforcing plate, which has excellent heat resistance, mechanical strength and electrical insulation properties. It can remain stable in high temperature environment, while providing good flexibility, which can improve the toughness and bending resistance of FPC and meet the needs of different application scenarios.
[0041] Working principle: When the FPC board 1 needs to be bent, the limiting frame 3 can be moved to the bending position of the FPC board 1. Using a Phillips screwdriver with the Phillips groove 7, the screw 6 is rotated, causing the screw 6 to move backward. This causes the screw 6 to push the arc plate 4 backward, so that the arc plate 4 moves backward to fit against the surface of the FPC board 1. The rear rubber pad 10 on the rear side compresses and limits the bending position of the FPC board 1, so that the limiting frame 3 and the arc plate 4 are stably set outside the bending position of the FPC board 1. Then the FPC board 1 can be bent for use, so that the FPC board 1 is bent against the arc surface of the arc plate 4. At the same time, the arc plate 4 limits the inside of the bending position of the FPC board 1, avoiding the risk of the FPC board 1 having too small a radius, thereby reducing the risk of breakage or tearing.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A low-resistance industrial control camera FPC, comprising an FPC board (1), characterized in that: The front upper and lower ends of the FPC board (1) are fixedly connected to the connecting parts (2). The outer side of the FPC board (1) is fitted with a limiting frame (3). The inside of the limiting frame (3) is provided with an arc plate (4). The front surface of the arc plate (4) is fixedly connected with a fixing cylinder (5). The inside of the fixing cylinder (5) is inserted with a screw (6). The front surface of the limiting frame (3) is provided with a screw hole (8). The outer side of the arc plate (4) is provided with a guide unit. The guide unit is used to guide and limit the movement of the arc plate (4).
2. The low-resistance industrial control camera FPC according to claim 1, characterized in that: The screw (6) is internally threaded into the screw hole (8).
3. The low-resistance industrial control camera FPC according to claim 1, characterized in that: The inner surfaces of the left and right sides of the arc plate (4) are in contact with the inner wall of the limiting frame (3).
4. The low-resistivity industrial control camera FPC according to claim 1, characterized in that: The back center of the arc plate (4) is set in a planar structure, and a front rubber pad (9) is fixedly connected to the back center of the arc plate (4).
5. The low-resistance industrial control camera FPC according to claim 1, characterized in that: A rear rubber pad (10) is fixedly connected to the rear inner wall surface of the limiting frame (3).
6. The low-resistance industrial control camera FPC according to claim 1, characterized in that: The guiding unit includes a guide block (111), which is fixedly connected to the outer surface of the arc plate (4). The inner wall surfaces of the front and rear sides of the limiting frame (3) are provided with guide grooves (112).
7. A low-resistance industrial control camera FPC according to claim 6, characterized in that: There are two guide blocks (111). The two guide blocks (111) are fixedly connected to the front and rear surfaces of the arc plate (4) respectively. The two guide blocks (111) are slidably connected to the interior of the two guide grooves (112) on the front and rear sides of the limiting frame (3).
8. The low-resistance industrial control camera FPC according to claim 1, characterized in that: A cross groove (7) is provided on the right side surface of the screw (6).
9. A low-resistance industrial control camera FPC according to claim 1, characterized in that: The FPC board (1) is wrapped with an insulating layer (12) on the outside, and an adhesive layer (13) is provided on the outside of the insulating layer (12), and a protective layer (15) is sleeved on the outside of the adhesive layer (13).
10. A low-resistance industrial control camera FPC according to claim 9, characterized in that: A bending layer (14) is fixedly connected in the gap between the upper and lower surfaces of the adhesive layer (13) and the inner wall of the protective layer (15).