Plug-in type flexible circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses a plug-in type flexible circuit board. According to the application, the plug-in type flexible circuit board comprises a circuit board body and an external protection shell, the top of the circuit board body is provided with a circuit board top, the tail end of the circuit board top is connected with a circuit board middle part, and the external protection shell is slidably installed outside the circuit board middle part. A fixed-angle shell is arranged on the outer layer of the external protective shell, and due to the fact that the rotating function of the flexible circuit board is prone to causing structural damage, a sliding embedded protective shell is adopted for protection. The inner and outer sides of the structure are hard protection layers, and the flexible protection film is arranged in the middle. The hard layer provides rigid support and does not participate in rotation, and the flexible film allows angle adjustment and buffers stress. The inner layer and the outer layer fix the circuit board body through the flexible connecting piece, displacement of a non-rotating part is limited, the angle adjusting function is achieved, and meanwhile the mechanical damage risk of the circuit board is effectively reduced.

Description

Technical Field

[0001] This application belongs to the field of circuit board technology, specifically a plug-in flexible circuit board. Background Technology

[0002] Flexible circuit boards, also known as "flexible boards," are printed circuits made from flexible insulating substrates. Flexible circuits offer excellent electrical performance, meeting the design needs for smaller and higher-density installations. They also help reduce assembly steps and enhance reliability. Flexible circuit boards are the only solution to meet the miniaturization and mobility requirements of electronic products. They can be freely bent, rolled, and folded, and can withstand millions of dynamic bends without damaging the wires. They can be arranged arbitrarily according to spatial layout requirements and can move and stretch freely in three-dimensional space, thus achieving integration of component assembly and wire connection. Flexible circuit boards can significantly reduce the size and weight of electronic products, meeting the needs of electronic products developing towards high density, miniaturization, and high reliability.

[0003] For example, CN213694279U discloses a plug-in flexible circuit board, including a first flexible circuit board, a second flexible circuit board, an upper reinforcing plate, and a lower reinforcing plate. One end of the first flexible circuit board has a connector, and the other end has gold finger pads. One end of the second flexible circuit board has a connecting groove, and the upper and lower surfaces of the other end are fixed with mounting plates. The connecting groove engages with the connector. The upper reinforcing plate includes a first reinforcing section and a first grip section. The lower reinforcing plate includes a second reinforcing section, a second grip section, and an anti-bending section. The cooperation of the upper and lower reinforcing plates increases the connection strength between the gold finger pads and the first flexible circuit board, making the connection less prone to breakage. The use of the first and second grip sections makes it easy for operators to handle. The anti-bending section prevents the connection between the first and second flexible circuit boards from breaking. The connector and connecting groove facilitate the fixing of the first and second flexible circuit boards.

[0004] However, the flexible circuit board in this application has problems such as insufficient overall protection and inconvenient installation and removal of the gold fingers. Utility Model Content

[0005] The purpose of this application is to provide a plug-in flexible circuit board to solve the problems of insufficient overall protection and inconvenient installation and removal of gold fingers mentioned above.

[0006] The technical solution adopted in this application is as follows: A plug-in flexible circuit board includes a circuit board body and an outer protective shell. A circuit board top is provided on the top of the circuit board body. A circuit board bottom is connected to the end of the circuit board top. A circuit board bottom is connected to the end of the middle part of the circuit board. An outer protective shell is slidably installed on the outside of the circuit board bottom. A fixed-angle outer shell is provided on the outer layer of the outer protective shell. A protective layer connecting part is fixedly connected to the fixed-angle outer shell. A fixed-angle inner shell is fixedly connected to the protective layer connecting part. A soft protective layer is provided in the middle part of both the fixed-angle inner shell and the fixed-angle outer shell.

[0007] By adopting the above technical solution, a sliding embedded protective shell is used to protect the flexible circuit board from structural damage due to its rotational function. This structure consists of rigid protective layers on both the inner and outer sides, with a flexible protective film in the middle: the rigid layers provide rigid support and do not participate in rotation, while the flexible film allows for angle adjustment and buffers stress. The inner and outer layers are fixed to the circuit board body by flexible connectors, limiting the displacement of non-rotating parts. This composite structure effectively reduces the risk of mechanical damage to the flexible circuit board while achieving angle adjustment.

[0008] In a preferred embodiment, a fixing buckle is rotatably installed at the end of the fixed angle outer shell, a fixing buckle groove is provided at the end of the fixed angle inner shell, and a protruding structure is provided on the front side of the fixing buckle groove.

[0009] By adopting the above technical solution, a sliding fixing buckle design is implemented on the outer protective shell, and an embedded mounting groove is opened at the same position on the inner protective shell, with a protruding structure matching the outer fixing groove. The locking mechanism is achieved by rotating the buckle: it both restricts the displacement freedom of non-rotating parts and prevents the protective shell from falling off through the interlocking structure of the buckle protrusions.

[0010] In a preferred embodiment, a protective housing is slidably mounted on the top of the circuit board, and a quick-release handle is fixedly mounted on the top of the protective housing.

[0011] By adopting the above technical solution, a sliding installation structure is used to fix the protective shell to the periphery of the top circuit board, and installation is completed by direct contact with the protective shell. The top-integrated quick-release handle and physical isolation design form dual protection: it enables quick installation and removal of the flexible circuit board, while avoiding mechanical damage caused by direct contact with vulnerable parts during manual operation.

[0012] In a preferred embodiment, a cable management area is provided on the side of the quick-release handle, and a rotating shaft is rotatably mounted at the end of the cable management area, with an auxiliary fixing block rotatably connected to the rotating shaft.

[0013] By adopting the above technical solution, a cable management area is set up on the side of the protection module. A rotating shaft is used to drive the auxiliary fixing block to rotate and fix it on the cable management area. The gap is used to help organize the lines above the protection module, which can prevent the lines from becoming messy and effectively improve work efficiency. When not in use, the installation can be completed directly without creating extra space that would affect the installation and use of the circuit board.

[0014] In a preferred embodiment, a protective shell is connected to the bottom end of the circuit board, a bottom protective layer is provided at the bottom of the protective shell, and an adsorption layer is fixedly installed at the bottom of the bottom protective layer, the adsorption layer wrapping around the periphery of the gold finger slot.

[0015] By adopting the above technical solution, an integrated protective structure is formed around the gold finger area on the bottom of the circuit board to prevent installation impact damage; an adsorption layer is added to the bottom to assist in the installation of the gold fingers of the circuit board, thereby extending the insertion and removal life.

[0016] In a preferred embodiment, a heat sink is fixedly mounted on the back of the fixed-angle housing.

[0017] By adopting the above technical solution, heat sinks are fixedly installed on the back of the protective shell. These heat sinks are small and can be bent with the outer protective shell, which helps the circuit board to better dissipate heat.

[0018] In a preferred embodiment, an auxiliary hub is fixedly mounted on the back of the heat sink.

[0019] By adopting the above technical solution, an auxiliary hub is installed on the back of the heat sink to help organize the wiring that is prone to appear near the protective casing.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In this application, a sliding embedded protective shell is used for protection. The structure consists of rigid protective layers on both the inner and outer sides, with a flexible protective film in the middle. The rigid layers provide rigid support and do not participate in rotation, while the flexible film allows for angle adjustment and buffers stress. The inner and outer layers are fixed to the circuit board body by flexible connectors, limiting the displacement of non-rotating parts. This composite structure effectively reduces the risk of mechanical damage to the flexible circuit board while achieving angle adjustment. A sliding installation structure is used to fix the protective shell to the periphery of the top circuit board, and installation is completed by direct contact with the protective shell. The top-integrated quick-release handle and physical isolation design form dual protection: enabling quick installation and removal of the flexible circuit board while avoiding mechanical damage caused by direct contact with vulnerable parts during manual operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall installation in this application;

[0023] Figure 2 This is a schematic diagram of the protective shell structure in this application;

[0024] Figure 3 This is a schematic diagram of the front of the circuit board in this application;

[0025] Figure 4 This is a side view of the protective structure in this application.

[0026] The markings in the diagram are: 1. Circuit board body; 2. Outer protective shell; 3. Fixed angle outer shell; 4. Flexible protective layer; 5. Fixed angle inner shell; 6. Fixing clip slot; 7. Protruding structure; 8. Fixing clip; 9. Protective shell; 10. Quick release handle; 11. Cable management area; 12. Rotating shaft; 13. Auxiliary fixing block; 14. Bottom protective layer; 15. Adhesive layer; 16. Gold finger slot; 17. Heat sink; 18. Top of circuit board; 19. Bottom of circuit board; 20. Auxiliary hub; 21. Protective layer connection part; 22. Middle of circuit board. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in 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] Reference Figure 1-4 ,

[0029] Example:

[0030] A plug-in flexible circuit board includes a circuit board body 1 and an outer protective shell 2. A circuit board top 18 is provided on the top of the circuit board body 1. A circuit board middle part 22 is connected to the end of the circuit board top 18. A circuit board bottom 19 is connected to the end of the circuit board middle part. The outer protective shell 2 is slidably installed on the outside of the circuit board middle part 22. Since the rotation function of the flexible circuit board is prone to structural damage, a sliding embedded protective shell is used for protection.

[0031] The outer protective shell 2 has a fixed-angle outer shell 3, which is fixedly connected to a protective layer connecting part 21. The protective layer connecting part 21 is fixedly connected to a fixed-angle inner shell 5. A soft protective layer 4 is provided in the middle part of the fixed-angle inner shell 5 and the fixed-angle outer shell 3. The inner and outer sides of this structure are rigid protective layers, and a flexible protective film is set in the middle: the rigid layer provides rigid support and does not participate in rotation, while the flexible film allows angle adjustment and buffers stress. The inner and outer layers are fixed to the circuit board body by flexible connectors, limiting the displacement of non-rotating parts. This composite structure effectively reduces the risk of mechanical damage to the flexible circuit board while realizing the angle adjustment function.

[0032] A fixing buckle 8 is rotatably mounted at the end of the fixed-angle outer shell 3, and a fixing buckle groove 6 is provided at the end of the fixed-angle inner shell 5. A protruding structure 7 is provided on the front of the fixing buckle groove 6. By implementing a sliding fixing buckle design on the outer protective shell, an embedded mounting groove is opened at the same position on the inner protective shell, and a protruding structure matching the outer fixing groove is provided. The locking mechanism is achieved by rotating the buckle: it both restricts the displacement freedom of non-rotating parts and prevents the protective shell from falling off through the interlocking structure of the buckle protrusion.

[0033] A protective housing 9 is slidably mounted on the top of the circuit board 18. A quick-release handle 10 is fixedly mounted on the top of the protective housing 9. The protective housing is fixed to the periphery of the top circuit board using a sliding installation structure, and installation is completed by direct contact with the protective housing. The top-integrated quick-release handle and physical isolation design form a dual protection: it enables quick installation and removal of the flexible circuit board, while avoiding mechanical damage caused by direct contact with vulnerable parts during manual operation.

[0034] A cable management area 11 is provided on the side of the quick-release handle 10. A rotating shaft 12 is rotatably installed at the end of the cable management area 11. An auxiliary fixing block 13 is rotatably connected to the rotating shaft 12. By providing a cable management area on the side of the protection module, the rotating shaft drives the auxiliary fixing block to rotate and fix it on the cable management area. The gap is used to help organize the lines above the protection module, making the lines less messy and effectively improving work efficiency. When not in use, the installation can be completed directly without creating extra space that would affect the installation and use of the circuit board.

[0035] A protective shell 9 is connected to the end of the bottom 19 of the circuit board. A bottom protective layer 14 is provided at the bottom of the protective shell 9. An adsorption layer 15 is fixedly installed at the bottom of the bottom protective layer 14. The adsorption layer 15 wraps around the gold finger slot 16. By integrating a protective structure around the gold finger area on the bottom surface of the circuit board, installation impact damage is prevented. The adsorption layer at the bottom assists in the installation of the gold fingers of the circuit board, thereby extending the insertion and removal life.

[0036] A heat sink 17 is fixedly installed on the back of the fixed angle housing 3. By fixing the heat sink on the back of the protective housing, and by ensuring that the heat sink is small and can be bent with the outer protective housing, the circuit board can better dissipate heat.

[0037] An auxiliary hub 20 is fixedly installed on the back of the heat sink 17. By setting up an auxiliary hub on the back of the heat sink, it helps to organize the wiring that is likely to appear near the protective casing.

[0038] The implementation principle of a plug-in flexible circuit board embodiment of this application is as follows: A circuit board top 18 is provided on the top of the circuit board body 1. The end of the circuit board top 18 is connected to the circuit board middle part 22. The end of the circuit board middle part is connected to the circuit board bottom 19. An outer protective shell 2 is slidably installed on the outside of the circuit board middle part 22. A fixed angle outer shell 3 is provided on the outer layer of the outer protective shell 2. A protective layer connecting part 21 is fixedly connected to the fixed angle outer shell 3. A fixed angle inner shell 5 is fixedly connected to the protective layer connecting part 21. A soft protective layer 4 is provided in the middle part of the fixed angle inner shell 5 and the fixed angle outer shell 3. Since the rotation function of the flexible circuit board is prone to structural damage, a sliding embedded protective shell is used for protection. The inner and outer sides of this structure are rigid protective layers, and a flexible protective film is provided in the middle: the rigid layer provides rigid support and does not participate in rotation, while the flexible film allows angle adjustment and buffers stress. The inner and outer layers are fixed to the circuit board body by flexible connectors to limit the displacement of non-rotating parts. This composite structure effectively reduces the risk of mechanical damage to the flexible circuit board while realizing the angle adjustment function.

[0039] The above 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 plug-in flexible circuit board, comprising a circuit board body (1) and an outer protective shell (2), characterized in that: The circuit board body (1) has a circuit board top (18) at the top, the circuit board middle (22) is connected to the end of the circuit board top (18), the circuit board bottom (19) is connected to the end of the circuit board middle (22), an outer protective shell (2) is slidably installed on the outside of the circuit board middle (22), a fixed angle outer shell (3) is provided on the outer layer of the outer protective shell (2), a protective layer connecting part (21) is fixedly connected to the fixed angle outer shell (3), a fixed angle inner shell (5) is fixedly connected to the protective layer connecting part (21), and a soft protective layer (4) is provided in the middle part of the fixed angle inner shell (5) and the fixed angle outer shell (3).

2. The plug-in flexible circuit board as described in claim 1, characterized in that: The fixed angle outer shell (3) is rotatably mounted with a fixing buckle (8), the fixed angle inner shell (5) is provided with a fixing buckle groove (6) at its end, and a protruding structure (7) is provided on the front of the fixing buckle groove (6).

3. The plug-in flexible circuit board as described in claim 1, characterized in that: A protective housing (9) is slidably mounted on the top of the circuit board (18), and a quick-release handle (10) is fixedly mounted on the top of the protective housing (9).

4. The plug-in flexible circuit board as described in claim 3, characterized in that: The side of the quick-release handle (10) is provided with a cable management area (11), and a rotating shaft (12) is rotatably installed at the end of the cable management area (11). An auxiliary fixing block (13) is rotatably connected to the rotating shaft (12).

5. A plug-in flexible circuit board as described in claim 1, characterized in that: The bottom (19) of the circuit board is connected to a protective shell (9). A bottom protective layer (14) is provided at the bottom of the protective shell (9). An adsorption layer (15) is fixedly installed at the bottom of the bottom protective layer (14). The adsorption layer (15) wraps around the gold finger slot (16).

6. A plug-in flexible circuit board as described in claim 1, characterized in that: A heat sink (17) is fixedly installed on the back of the fixed angle housing (3).

7. A plug-in flexible circuit board as described in claim 6, characterized in that: A protective layer connection part (21) is fixedly installed on the back of the heat sink (17).

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