Connecting device of integrated flexible array sensor

Abstract

The utility model belongs to the field of array sensors, particularly relates to a connecting device of an integrated flexible array sensor, and aims to solve the problems that 64 sensor units of an array 8 * 8 sensor need 128 leads and engineering application cannot be realized in the conventional sensor configuration, the utility model provides the following scheme: the connecting device comprises a flexible printed circuit (FPC) and a printed circuit board (PCB), the printed circuit board PCB and the flexible circuit board FPC are connected through a connecting mechanism; the flexible circuit board FPC comprises a circuit board body, the circuit board body is provided with a plurality of first connecting holes used in cooperation with the connecting mechanism, in order to simplify leads and column lines, the leads at the lower right end of each sensor unit are connected to the column lines nearby, the number of connecting lines can be reduced, and the number of the connecting lines is reduced. The connecting rod penetrates out of the thin-wall metal lining, and then the nut is arranged on the threaded part in a threaded and sleeving mode, so that installation of the flexible circuit board FPC and the printed circuit board PCB is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of array sensors, in particular to a connecting device for integrated flexible array sensors. Background Art

[0002] Rigid-flex PCB is a combination of soft PCB and hard PCB. It is a circuit board formed by combining a thin layer of flexible bottom layer and a rigid bottom layer, and then laminating them into a single component. Rigid-flex PCB has changed the traditional flat design concept and expanded it to a three-dimensional space concept. While it brings great convenience to product design, it also brings great challenges.

[0003] With the existing sensor configuration, the 64 sensor units of an 8x8 sensor array require 128 leads, which cannot be applied in engineering and is inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the sensor configuration existing in the prior art, that is, 64 sensor units of an 8x8 sensor array require 128 leads, which cannot be applied in engineering, and to propose a connection device for an integrated flexible array sensor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connection device for an integrated flexible array sensor comprises a flexible circuit board (FPC) and a printed circuit board (PCB), wherein the printed circuit board (PCB) and the flexible circuit board (FPC) are connected via a connection mechanism;

[0007] The flexible circuit board FPC comprises a circuit board body, and a plurality of first connection holes used in conjunction with the connection mechanism are provided on the circuit board body;

[0008] The printed circuit board PCB includes an upper circuit board layer, a middle circuit board layer and a base circuit board layer. The upper circuit board layer is located above the middle circuit board layer, the base circuit board layer is located below the middle circuit board layer, and a plurality of second connection holes used in conjunction with a connection mechanism are provided on the base circuit board.

[0009] In one possible design, a plurality of soldering pads are welded on the upper layer of the circuit board, a plurality of connection points are arranged on the middle layer of the circuit board, the plurality of connection points in the same row are connected by connecting lines, a plurality of sensor units are arranged on the base layer of the circuit board, the plurality of connection points are connected to the sensor units at the bottom, and are connected to the soldering pads at the top.

[0010] In a possible design, the connecting mechanism includes a thin-walled metal bushing, which is used in conjunction with the second connecting hole and the first connecting hole. A top metal bushing is provided at the top of the thin-walled metal bushing, and a bottom metal bushing is provided at the bottom of the thin-walled metal bushing.

[0011] In a possible design, the connection mechanism further includes a connection rod, which is used in conjunction with a thin-walled metal bushing. A threaded portion is provided at the bottom of the connection rod, and a nut is threadedly sleeved on the threaded portion.

[0012] In a possible design, a bolt cover is provided on the top of the connecting rod.

[0013] In a possible design, the outer wall of the bolt cover is provided with anti-slip grooves.

[0014] In this application, the array sensor is designed based on columns, and each column includes 8 sensor units. The upper left lead of each sensor unit is led out separately, which is called a row line, and there are 8 leads in total. The lower right lead of each sensor unit is brought together and led out, which is called a column line. To simplify the leads, the column line is changed to be wired around the column sensor, and the lower right lead of each sensor unit is connected to the nearest column line.

[0015] At the same time, when the printed circuit board PCB and the flexible circuit board FPC are connected, a connecting mechanism is needed to connect them. After the printed circuit board PCB and the flexible circuit board FPC are placed in appropriate positions, the second connecting hole is aligned with the first connecting hole, and the thin-walled metal bushing is inserted. The top metal bushing and the bottom metal bushing are welded to the two ends of the thin-walled metal bushing, and the connecting rod is passed through the thin-walled metal bushing, and the nut is threadedly sleeved on the threaded part to complete the installation of the flexible circuit board FPC and the printed circuit board PCB.

[0016] Beneficial effects:

[0017] In the utility model, the connecting device of the integrated flexible array sensor can achieve the effect of quickly connecting the printed circuit board PCB and the flexible circuit board FPC through the connecting mechanism, and can also adjust the installation position according to the needs, which is convenient to use;

[0018] In the utility model, the connection device of the integrated flexible array sensor can reduce the number of connection wires by bringing together the right lower end leads and leading them out, so that the right lower end lead of each sensor unit is connected to the column line nearby;

[0019] In the utility model, in order to simplify the lead wires, the column wires are changed to be wired around the column sensor, and the lead wires at the lower right end of each sensor unit are connected to the column wires nearby, thereby reducing the number of connecting wires. The connecting rod passes through the thin-walled metal bushing, and then the nut is threadedly sleeved on the threaded portion to complete the installation of the flexible circuit board FPC and the printed circuit board PCB. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a connection device for an integrated flexible array sensor proposed by the utility model;

[0021] Figure 2 A three-dimensional cross-sectional structural schematic diagram of a connection device for an integrated flexible array sensor proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the exploded structure of a flexible circuit board FPC and a printed circuit board PCB in a connection device for an integrated flexible array sensor proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the exploded structure of a printed circuit board PCB in a connection device for an integrated flexible array sensor proposed in the utility model;

[0024] Figure 5 The utility model provides a schematic diagram of the array sensor pads and leads in a connection device for an integrated flexible array sensor.

[0025] In the figure: 1. connecting mechanism; 2. flexible circuit board FPC; 3. printed circuit board PCB; 11. top metal bushing; 12. bolt cover; 13. anti-slip groove; 14. connecting rod; 15. threaded part; 16. nut; 17. bottom metal bushing; 18. thin-walled metal bushing; 21. circuit board body; 22. first connecting hole; 31. upper layer of circuit board; 32. second connecting hole; 33. soldering pad; 34. middle layer of circuit board; 35. base layer of circuit board; 36. sensor unit; 37. connecting line; 38. connecting point. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] Reference Figure 1-5A connection device for an integrated flexible array sensor is used in the field of array sensors, comprising: a flexible circuit board FPC2 and a printed circuit board PCB3, wherein the printed circuit board PCB3 and the flexible circuit board FPC2 are connected via a connection mechanism 1, wherein the connection mechanism 1 comprises a thin-walled metal bushing 18, wherein the thin-walled metal bushing 18 is used in conjunction with a second connection hole 32 and a first connection hole 22, wherein a top metal bushing 11 is provided at the top of the thin-walled metal bushing 18, wherein a bottom metal bushing 17 is provided at the bottom of the thin-walled metal bushing 18, wherein the connection mechanism 1 further comprises a connecting rod 14, wherein the connecting rod 14 is used in conjunction with the thin-walled metal bushing 18, wherein a threaded portion 15 is provided at the bottom of the connecting rod 14, wherein a nut 16 is provided on the threaded portion 15, and wherein a nut 16 is provided on the threaded portion 15, ... When the printed circuit board PCB3 and the flexible circuit board FPC2 are connected, they need to be connected using the connection mechanism 1. After the printed circuit board PCB3 and the flexible circuit board FPC2 are placed in appropriate positions, the second connection hole 32 is aligned with the first connection hole 22, and the thin-walled metal bushing 18 is inserted. The top metal bushing 11 and the bottom metal bushing 17 are welded to the two ends of the thin-walled metal bushing 18, and the connecting rod 14 is passed through the thin-walled metal bushing 18, and then the nut 16 is threadedly sleeved on the threaded portion 15 to complete the installation of the flexible circuit board FPC2 and the printed circuit board PCB3. The flexible circuit board FPC2 includes a circuit board body 21, and the circuit board body 21 is provided with a plurality of first connection holes 22 used in conjunction with the connection mechanism 1;

[0029] The technical solution also includes: the printed circuit board PCB3 includes a circuit board upper layer 31, a circuit board middle layer 34 and a circuit board base layer 35, the circuit board upper layer 31 is located above the circuit board middle layer 34, the circuit board base layer 35 is located below the circuit board middle layer 34, a plurality of second connection holes 32 used in conjunction with the connection mechanism 1 are opened on the circuit board base layer 35, a plurality of pads 33 are welded on the circuit board upper layer 31, a plurality of connection points 38 are arranged on the circuit board middle layer 34, and a plurality of connection points 38 located in the same row are connected by connection lines 37, and the circuit board base layer 35 is provided with a plurality of second connection holes 32 used in conjunction with the connection mechanism 1. A plurality of sensor units 36 are arranged on the layer 35, and a plurality of connection points 38 are connected to the sensor units 36 at the bottom, and are connected to the pads 33 at the top. The array sensor is designed based on columns, and each column includes 8 sensor units 36. The upper left lead of each sensor unit 36 ​​is led out separately, which is called a row line, and there are 8 leads in total. The lower right leads of each sensor unit 36 ​​are brought together and led out, which are called column lines. To simplify the leads, the column lines are changed to be wired around the column sensor, and the lower right lead of each sensor unit 36 ​​is connected to the nearest column line.

[0030] Example 2

[0031] refer to Figure 1-5, based on the improvement of Example 1: a bolt cover 12 is provided on the top of the connecting rod 14, and an anti-slip pattern 13 is provided on the outer wall of the bolt cover 12.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connection device for an integrated flexible array sensor, characterized in that: include: A flexible circuit board FPC (2) and a printed circuit board PCB (3), wherein the printed circuit board PCB (3) and the flexible circuit board FPC (2) are connected via a connecting mechanism (1); The flexible circuit board FPC (2) comprises a circuit board body (21), and the circuit board body (21) is provided with a plurality of first connection holes (22) for use with the connection mechanism (1); The printed circuit board PCB (3) comprises a circuit board upper layer (31), a circuit board middle layer (34) and a circuit board base layer (35), wherein the circuit board upper layer (31) is located above the circuit board middle layer (34), the circuit board base layer (35) is located below the circuit board middle layer (34), and the circuit board base layer (35) is provided with a plurality of second connection holes (32) for use with the connection mechanism (1).

2. The connection device of the integrated flexible array sensor according to claim 1, characterized in that: A plurality of solder pads (33) are welded on the upper layer (31) of the circuit board, a plurality of connection points (38) are arranged on the middle layer (34) of the circuit board, and the plurality of connection points (38) located in the same row are connected via connection lines (37), and a plurality of sensor units (36) are arranged on the base layer (35) of the circuit board, the plurality of connection points (38) are connected to the sensor units (36) at the bottom, and are connected to the solder pads (33) at the top.

3. The connection device of the integrated flexible array sensor according to claim 1, characterized in that: The connecting mechanism (1) comprises a thin-walled metal bushing (18), the thin-walled metal bushing (18) being used in conjunction with a second connecting hole (32) and a first connecting hole (22), a top metal bushing (11) being arranged at the top of the thin-walled metal bushing (18), and a bottom metal bushing (17) being arranged at the bottom of the thin-walled metal bushing (18).

4. The connection device of the integrated flexible array sensor according to claim 1, characterized in that: The connecting mechanism (1) also includes a connecting rod (14), the connecting rod (14) being used in conjunction with a thin-walled metal bushing (18), a threaded portion (15) being provided at the bottom of the connecting rod (14), and a nut (16) being threadedly sleeved on the threaded portion (15).

5. The connection device of the integrated flexible array sensor according to claim 4, characterized in that: A bolt cover (12) is provided on the top of the connecting rod (14).

6. The connection device of the integrated flexible array sensor according to claim 5, characterized in that: The outer wall of the bolt cover (12) is provided with anti-slip grooves (13).

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