A stepped notch connected FPC

Abstract

The utility model relates to circuit board technical field especially relates to a kind of FPC of stepped gap connection, including circuit board ontology and connecting structure;The end of the circuit board ontology is equipped with connecting end;The one end of the connecting structure facing the circuit board ontology is equipped with mounting groove, the first protruding block of the connecting structure is protruded with the first protruding block of connecting end, the one end of the first protruding block is equipped with the accommodation slot facing connecting end, and the other end is equipped with locking structure relative to circuit board ontology, and the accommodation slot is communicated in mounting groove.The utility model aims at enabling FPC to be connected stably, and has the effect of preventing misplug.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to an FPC with a stepped notch connection. Background Technology

[0002] Flexible printed circuit boards (FPCs) are widely used in consumer electronics, automotive electronics, and medical devices due to their advantages such as light weight, thinness, and flexibility. Currently, the fixation of FPCs to motherboards or connectors mostly relies on connectors secured with adhesive or simple mechanical clips. However, this type of connection has drawbacks, especially the lack of effective guidance and error prevention mechanisms during assembly, which can easily lead to damage due to misinsertion.

[0003] To improve connection reliability, the industry has attempted to design notch structures at the connection ends of FPCs to enable them to form a relatively stable mechanical interlock with the mating parts. However, traditional notches are mostly simple positioning grooves, which can only provide preliminary positioning and limited holding force, and cannot achieve high-precision alignment or foolproof design, making it difficult to meet increasingly stringent application requirements. Utility Model Content

[0004] The main purpose of this invention is to provide a stepped notch connection for FPCs, which aims to enable stable connection of FPCs and prevent mis-insertion.

[0005] To achieve the above objectives, this utility model proposes a stepped notch-connected FPC, comprising a circuit board body and a connection structure;

[0006] The circuit board body has a connection end at its end;

[0007] The connection structure has a mounting groove at one end facing the circuit board body, and a first protrusion that surrounds the connection end is provided on the connection structure. One end of the first protrusion has a clearance groove facing the connection end, and the other end has a locking structure relative to the circuit board body. The clearance groove is connected to the mounting groove.

[0008] In one embodiment of this application, the first protrusion has a second protrusion relative to the locking structure, the second protrusion has a mounting cavity facing the circuit board body, and the locking structure is connected to the mounting cavity.

[0009] In one embodiment of this application, the locking structure includes a mounting piece and an abutment piece;

[0010] The mounting piece is connected to the outer periphery of the second protrusion and covers the mounting cavity;

[0011] The abutment piece passes through the mounting cavity and is connected to the circuit board body. A spring is provided between the mounting piece and the abutment piece. The mounting cavity is provided with a guide structure relative to the abutment piece.

[0012] In one embodiment of this application, the mounting plate has a first limiting block facing the abutting plate, and the abutting plate has a second limiting block facing the mounting plate. The first limiting block and the second limiting block are coaxially arranged and connected to both ends of the spring along the axial direction of the spring.

[0013] In one embodiment of this application, the locking structure further includes an operating lever, which includes an operating part and a connecting rod;

[0014] The operating part is connected to the outer periphery of the mounting plate;

[0015] The connecting rod is connected to the operating part and passes through the first limiting block and the second limiting block. The connecting rod has a fixing part protruding from the second limiting block. A threaded structure is provided between the outer periphery of the connecting rod and the first limiting block.

[0016] In one embodiment of this application, the end of the connection structure away from the circuit board body is provided with a positioning hole.

[0017] In one embodiment of this application, the mounting groove is provided with a guide portion at one end facing the circuit board body, and the mounting groove is provided with guide grooves at intervals relative to the circuit board body.

[0018] By adopting the above technical solution, this utility model has the following advantages:

[0019] The FPC of this application includes a circuit board body and a connection structure. The connection structure has a mounting slot, allowing the connection end of the circuit board body to pass through the mounting slot and be fixed by the connection structure. To ensure normal use of the FPC, the connection structure has a clearance groove relative to the connection end, allowing the connection end to be exposed after being fixed, facilitating electrical connection of the FPC. A first protrusion is provided on one side of the connection structure, which can surround the connection end and protect the circuit board body. The first protrusion and the connection structure form a stepped structure. Normal connection can only be achieved when the connection structure is inserted into the connector in the correct direction; otherwise, the FPC cannot be used. It has good error prevention and anti-mistake effect. Furthermore, a locking structure is provided at the end of the first protrusion near the opening of the mounting slot. The locking structure can fix the flexible circuit board, making its installation more stable and ensuring the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the FPC with stepped notch connection according to this utility model;

[0022] Figure 2 This is a cross-sectional view of the connection structure of the FPC with stepped notch connection according to this utility model;

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0024] Explanation of icon numbers:

[0025] 1. Circuit board body; 11. Connecting end; 2. Connecting structure; 3. First protrusion; 31. Relief groove; 4. Second protrusion; 41. Mounting cavity; 5. Locking structure; 51. Mounting piece; 52. First limiting block; 53. Abutment piece; 54. Second limiting block; 6. Operating lever; 61. Operating part; 62. Connecting rod; 63. Fixing part; 7. Mounting groove; 71. Guide part; 72. Guide groove.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] The following is in conjunction with the appendix Figures 1 to 3 The present invention will be further described below.

[0029] To achieve the above objectives, this utility model proposes a stepped notch-connected FPC, comprising a circuit board body 1 and a connection structure 2;

[0030] The circuit board body 1 has a connection end 11 at one end;

[0031] The connecting structure 2 has a mounting groove 7 at one end facing the circuit board body 1. The connecting structure 2 has a first protrusion 3 that surrounds the connecting end 11. One end of the first protrusion 3 has a clearance groove 31 facing the connecting end 11, and the other end has a locking structure 5 relative to the circuit board body 1. The clearance groove 31 is connected to the mounting groove 7.

[0032] The FPC of this application includes a circuit board body 1 and a connecting structure 2. The connecting structure 2 has a mounting groove 7, which allows the connecting end 11 of the circuit board body 1 to pass through the mounting groove 7 and be fixed by the connecting structure 2. In order for the FPC to be used normally, the connecting structure 2 has a relief groove 31 relative to the connecting end 11, so that the connecting end 11 can be exposed after being fixed, which facilitates the electrical connection of the FPC. A first protrusion 3 is provided on one side of the connecting structure 2. The first protrusion 3 can surround the connecting end 11 and play a protective role for the circuit board body 1. The first protrusion 3 and the connecting structure 2 form a stepped structure. Only when the direction of the connecting structure 2 is correctly inserted into the connector can it be connected normally. Otherwise, the FPC cannot be used. It has a good foolproof and error-proof effect. Furthermore, a locking structure 5 is provided at the end of the first protrusion 3 near the opening of the mounting groove 7. The locking structure 5 can fix the flexible circuit board, making its installation more stable and ensuring the user experience.

[0033] In one embodiment of this application, the first protrusion 3 is provided with a second protrusion 4 relative to the locking structure 5, the second protrusion 4 is provided with a mounting cavity 41 facing the circuit board body 1, and the locking structure 5 is connected to the mounting cavity 41.

[0034] The connecting structure 2 is equipped with a second protrusion 4 to enable the installation of the locking structure 5. The second protrusion 4 can be used to install the locking structure 5 deeper into the mounting cavity 41, ensuring the overall stability of the locking structure 5.

[0035] In one embodiment of this application, the locking structure 5 includes a mounting piece 51 and an abutment piece 53;

[0036] Mounting piece 51 is connected to the outer periphery of the second protrusion 4 and covers the mounting cavity 41;

[0037] The abutment piece 53 passes through the mounting cavity 41 and is connected to the circuit board body 1. A spring is provided between the mounting piece 51 and the abutment piece 53. The mounting cavity 41 is provided with a guide structure relative to the abutment piece 53.

[0038] Mounting piece 51 is used to enclose mounting cavity 41, while abutting piece 53 directly abuts against circuit board body 1. The outer periphery of abutting piece 53 is arc-shaped, which makes it easy to insert circuit board body 1 and reduces wear. Abutting piece 53 achieves stable fixation of circuit board body 1 through spring provided between mounting piece 51 and abutting piece 53. This structure is relatively simple and has good vibration resistance, which can make the connection more stable.

[0039] The guiding structure ensures a more stable trajectory for the vertical movement of the contact piece 53.

[0040] In one embodiment of this application, the mounting piece 51 is provided with a first limiting block 52 facing the abutment piece 53, and the abutment piece 53 is provided with a second limiting block 54 facing the mounting piece 51. The first limiting block 52 and the second limiting block 54 are coaxially arranged and connected to both ends of the spring along the axial direction of the spring.

[0041] The first limiting block 52 and the second limiting block 54 are coaxially arranged, which can make the spring more stable to be installed and ensure that the force on the abutment block is more uniform.

[0042] In one embodiment of this application, the locking structure 5 further includes an operating lever 6, which includes an operating part 61 and a connecting rod 62;

[0043] The operating part 61 is connected to the outer periphery of the mounting plate 51;

[0044] The connecting rod 62 is connected to the operating part 61 and passes through the first limiting block 52 and the second limiting block 54. The connecting rod 62 has a fixing part 63 protruding from the second limiting block 54. A threaded structure is provided between the outer periphery of the connecting rod 62 and the first limiting block 52.

[0045] The locking structure 5 can also be equipped with an operating lever 6. The operating part 61 of the operating lever 6 allows the user to intuitively drive the operating lever 6 to rotate it. The connecting rod 62 connects the mounting plate 51 and the abutment plate 53, and the abutment plate 53 is connected by the fixing part 63. The mounting plate 51 and the connecting rod 62 are connected by a threaded rotation to ensure the stability of the connection between the two.

[0046] In one embodiment of this application, the end of the connection structure 2 away from the circuit board body 1 is provided with a positioning hole.

[0047] The positioning holes facilitate the installation of connection structure 2.

[0048] In one embodiment of this application, the mounting groove 7 is provided with a guide portion 71 at one end facing the circuit board body 1, and the mounting groove 7 is provided with a guide groove 72 at intervals relative to the circuit board body 1.

[0049] The guide section 71 and the guide groove 72 work together to make the circuit board body 1 inserted more smoothly.

[0050] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0051] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stepped notch-connected FPC, characterized in that, include: The circuit board body has a connecting end at one end; The connection structure has a mounting groove at one end facing the circuit board body, and a first protrusion that surrounds the connection end. One end of the first protrusion has a clearance groove facing the connection end, and the other end has a locking structure relative to the circuit board body. The clearance groove is connected to the mounting groove.

2. The FPC with stepped notch connection according to claim 1, characterized in that, The first protrusion has a second protrusion relative to the locking structure, and the second protrusion has a mounting cavity facing the circuit board body. The locking structure is connected to the mounting cavity.

3. The FPC with stepped notch connection according to claim 2, characterized in that, The locking structure includes: The mounting piece is connected to the outer periphery of the second protrusion and covers the mounting cavity; An abutment piece is inserted into the mounting cavity and connected to the circuit board body. A spring is provided between the mounting piece and the abutment piece. The mounting cavity is provided with a guide structure relative to the abutment piece.

4. The FPC with stepped notch connection according to claim 3, characterized in that, The mounting plate has a first limiting block facing the abutment plate, and the abutment plate has a second limiting block facing the mounting plate. The first limiting block and the second limiting block are coaxially arranged and connected to both ends of the spring along the axial direction of the spring.

5. The FPC with stepped notch connection according to claim 4, characterized in that, The locking structure further includes an operating lever, the operating lever comprising: An operating part is connected to the outer periphery of the mounting plate; A connecting rod is connected to the operating part and passes through the first limiting block and the second limiting block. The connecting rod has a fixing part protruding from the second limiting block. A threaded structure is provided between the outer periphery of the connecting rod and the first limiting block.

6. The FPC with stepped notch connection according to claim 1, characterized in that, The connection structure has a positioning hole at the end away from the circuit board body.

7. The FPC with stepped notch connection according to claim 1, characterized in that, The mounting slot is inclined at one end toward the circuit board body and has a guide portion, and the mounting slot is provided with guide grooves at intervals relative to the circuit board body.

Images