Rigid-flex high-density interconnection circuit board

Abstract

The utility model discloses a rigid-flex high-density interconnection circuit board, which comprises a flexible circuit board, and locking structures are arranged at corners of the flexible circuit board. The printed circuit boards are arranged on the two sides of the flexible circuit board, and the printed circuit boards are connected with the flexible circuit board through locking structures. According to the utility model, through the arrangement of the locking structure, the magnetic attraction structure, the connecting seat and the connecting port, firm connection is established between the flexible circuit board and the printed circuit board, the connection mode is stable and reliable, relatively easy disassembly and recombination are allowed when necessary, and the overall structural stability is improved.

Description

Technical Field

[0001] The utility model relates to a circuit board, in particular to a rigid-flexible combined high-density interconnect circuit board. Background Art

[0002] In the electronics industry, circuit boards are the foundation for connecting and supporting different electronic components, including printed circuit boards (PCBs) and flexible printed circuit boards (FPCs). A PCB is a rigid circuit board, usually made of copper wire patterns, while an FPC is a flexible and lightweight circuit board that can be bent and is commonly used in applications where space is limited or flexibility is required.

[0003] High-Density Interconnect (HDI) circuit boards are boards with finer traces and higher connection densities than traditional PCBs. This technology allows for smaller designs and higher signal integrity, which is crucial for the miniaturization trend of modern electronic products.

[0004] However, systems that combine PCBs and FPCs usually face some challenges, such as assembly stability, connection reliability, and the convenience of assembly and maintenance. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a rigid-flexible combined high-density interconnect circuit board to solve the problems existing in the background art.

[0006] The rigid-flexible combined high-density interconnect circuit board of the utility model is realized through the following technical solutions, including:

[0007] A flexible printed circuit board, with locking structures provided at the corners of the flexible printed circuit board;

[0008] A printed circuit board, which is arranged on both sides of the flexible printed circuit board, and the printed circuit board is connected to the flexible printed circuit board through the locking structure.

[0009] As a preferred technical solution, mounting grooves are provided on the printed circuit board, and both ends of the flexible printed circuit board are placed in the mounting grooves;

[0010] A magnetic attraction structure is also provided between the mounting groove and the flexible printed circuit board, and the printed circuit board and the flexible printed circuit board are positioned through the magnetic attraction structure.

[0011] As a preferred technical solution, the locking structure includes locking screws provided on the flexible printed circuit board and elastic locking seats provided on the printed circuit board;

[0012] The inside of the elastic locking seat is hollow to form an activity cavity, and a locking nut is movably arranged in the activity cavity; a spring groove is arranged above the activity cavity, a spring is arranged in the spring groove, and the other end of the spring is in contact with the locking nut;

[0013] The locking screw on the flexible printed circuit board passes through the elastic locking seat and is placed in the activity cavity, and the locking end of the locking screw is connected to the locking nut, thereby realizing the connection between the flexible printed circuit board and the printed circuit board.

[0014] As a preferred technical solution, the magnetic attraction structure includes a magnetic attraction sheet and a metal connecting sheet;

[0015] The magnetic attraction sheets are arranged at both ends of the flexible printed circuit board, the metal connecting sheets are arranged in the installation grooves of the printed circuit board, and the flexible printed circuit board and the printed circuit board are magnetically fixed through the magnetic attraction sheets and the metal connecting sheets.

[0016] As a preferred technical solution, connection seats are arranged below both ends of the flexible printed circuit board; connection ports are arranged on the printed circuit board, and the positions of the connection ports correspond to the positions of the connection seats.

[0017] As a preferred technical solution, the connection ports are arranged on the installation grooves, and the flexible printed circuit board is connected to the connection ports of the printed circuit board through the connection seats.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. Through the settings of the locking structure, the magnetic attraction structure, and the connection seats and connection ports, a firm connection is established between the flexible printed circuit board and the printed circuit board. This connection method is not only stable and reliable but also allows for relatively easy disassembly and recombination when necessary, improving the overall structural stability.

[0020] 2. By adopting the magnetic attraction structure and the elastic locking seat with a designed elasticity, the assembly process is greatly simplified; the magnetic attraction structure ensures quick and accurate automatic alignment between components, while the elastic locking seat increases the screw fixing force and improves the connection force between the flexible printed circuit board and the printed circuit board. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2Schematic diagram of the bending structure of the present utility model;

[0024] Figure 3 Schematic diagram of the explosion structure of the present utility model;

[0025] Figure 4 Schematic diagram of the installation structure of the present utility model;

[0026] Figure 5 Schematic diagram of the locking structure of the present utility model.

[0027] Explanation of reference numerals in the drawings:

[0028] 1. Flexible printed circuit board; 2. Printed circuit board; 3. Installation groove; 4. Locking screw; 5. Elastic locking seat; 6. Activity cavity; 7. Locking nut; 8. Spring; 9. Magnetic attraction sheet; 10. Metal connecting piece; 11. Connecting seat; 12. Connection port. Specific implementation mode

[0029] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0030] As Figures 1 - 5 shown, a rigid-flex printed circuit board of the present utility model includes:

[0031] A flexible printed circuit board 1, and locking structures are provided at the corners of the flexible printed circuit board 1;

[0032] A printed circuit board 2, the printed circuit board 2 is arranged on both sides of the flexible printed circuit board 1, and the printed circuit board 2 and the flexible printed circuit board 1 are connected through a locking structure.

[0033] Among them, an installation groove 3 is provided on the printed circuit board 2, and both ends of the flexible printed circuit board 1 are placed in the installation groove 3;

[0034] A magnetic attraction structure is further provided between the installation groove 3 and the flexible printed circuit board 1, and the printed circuit board 2 and the flexible printed circuit board 1 are positioned through the magnetic attraction structure.

[0035] In this embodiment, the locking structure includes an elastic locking seat 5 provided on the flexible printed circuit board 1 and a locking screw 4 provided on the printed circuit board 2;

[0036] The elastic locking seat 5 is internally hollow to form an activity cavity 6, and a locking nut 7 is movably arranged in the activity cavity 6; a spring groove is provided above the activity cavity 6, a spring 8 is arranged in the spring groove, and the other end of the spring 8 is in contact with the locking nut 7;

[0037] The locking screw 4 on the flexible printed circuit board 1 passes through the elastic locking seat 5 and is placed in the movable cavity 6, and the locking end of the locking screw 4 is connected to the locking nut 7, thereby realizing the connection between the flexible printed circuit board 1 and the printed circuit board 2; making the connection between the flexible printed circuit board and the printed circuit board more firm and capable of withstanding greater external force impacts.

[0038] Among them, the magnetic attraction structure includes a magnetic attraction sheet 9 and a metal connecting sheet 10;

[0039] The magnetic attraction sheet 9 is arranged at both ends of the flexible printed circuit board 1, and the metal connecting sheet 10 is arranged in the installation groove 3 of the printed circuit board 2. The flexible printed circuit board 1 and the printed circuit board 2 are magnetically fixed through the magnetic attraction sheet 9 and the metal connecting sheet 10; the magnetic attraction function realizes the rapid positioning of the flexible printed circuit board and the printed circuit board.

[0040] Among them, connection seats 11 are arranged below both ends of the flexible printed circuit board 1; connection ports 12 are arranged on the printed circuit board 2, and the positions of the connection ports 12 correspond to the positions of the connection seats 11.

[0041] In addition, the connection ports 12 are arranged on the installation groove 3, and the flexible printed circuit board 1 is connected to the connection ports 12 of the printed circuit board 2 through the connection seats 11; ensuring that the circuit board can maintain stable performance under various harsh environments.

[0042] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A rigid-flex high-density interconnect circuit board, characterized in that, Including: A flexible printed circuit board (1), with locking structures provided at the corners of the flexible printed circuit board (1); A printed circuit board (2), which is arranged on both sides of the flexible printed circuit board (1), and the printed circuit board (2) is connected to the flexible printed circuit board (1) through the locking structure; An installation groove (3) is provided on the printed circuit board (2), and both ends of the flexible printed circuit board (1) are placed in the installation groove (3); A magnetic attraction structure is further provided between the installation groove (3) and the flexible printed circuit board (1), and the printed circuit board (2) and the flexible printed circuit board (1) are positioned through the magnetic attraction structure; The locking structure includes a locking screw (4) provided on the flexible printed circuit board (1) and an elastic locking seat (5) provided on the printed circuit board (2); a hollow activity cavity (6) is formed inside the elastic locking seat (5), and a locking nut (7) is movably arranged in the activity cavity (6); a spring groove is provided above the activity cavity (6), a spring (8) is arranged in the spring groove, and the other end of the spring (8) is in contact with the locking nut (7); The locking screw (4) on the flexible printed circuit board (1) passes through the elastic locking seat (5) and is placed in the activity cavity (6), and the locking end of the locking screw (4) is connected to the locking nut (7), thereby realizing the connection between the flexible printed circuit board (1) and the printed circuit board (2); the magnetic attraction structure includes a magnetic attraction piece (9) and a metal connection piece (10); the magnetic attraction pieces (9) are arranged at both ends of the flexible printed circuit board (1), the metal connection pieces (10) are arranged in the installation grooves (3) of the printed circuit board (2), and the flexible printed circuit board (1) and the printed circuit board (2) are magnetically fixed through the magnetic attraction pieces (9) and the metal connection pieces (10).

2. The rigid-flex high-density interconnect circuit board according to claim 1, wherein: Connection seats (11) are provided below both ends of the flexible printed circuit board (1); connection ports (12) are provided on the printed circuit board (2), and the positions of the connection ports (12) correspond to the positions of the connection seats (11).

3. The rigid-flex high-density interconnect circuit board according to claim 2, wherein: The connection ports (12) are arranged on the installation grooves (3), and the flexible printed circuit board (1) is connected to the connection ports (12) of the printed circuit board (2) through the connection seats (11).

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