Sensor flexible circuit board structure and special-shaped sensor

Abstract

The utility model relates to a kind of sensor flexible circuit board structure and special-shaped sensor, comprising: at least two sub-circuit boards and a pair of hinge joints, a pair of the hinge joints are arranged between adjacent two sub-circuit boards;The hinge joint includes connecting plate, a pair of first lugs is arranged in the side of the connecting plate, a pair of the first lug is mutually parallel arrangement;Second lug is arranged on the other side of the connecting plate, the second lug is perpendicular to a pair of the first lug arrangement;A pair of first lug of the hinge joint is clamped in the two sides of the sub-circuit board, a pair of the first lug is articulated with the sub-circuit board, and two second lug between a pair of hinge joints are articulated.The flexible circuit board structure in the utility model is connected between multiple sub-circuit boards by multiple pairs of hinge joints, so that the bending rotation in different directions between any two sub-circuit boards is realized, so that the circuit board assembly formed forms link structure, and adapts to different size and different shape sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a flexible circuit board structure for a sensor and an irregularly shaped sensor. Background Technology

[0002] Sensors typically consist of a housing, sensing element, circuit board, and related connectors and cables, usually arranged axially. When the overall length of the sensor is long, the installation space requirements are significant. In some scenarios, the circuit board becomes the most space-consuming component, limiting the sensor's shape design and application scenarios.

[0003] In existing technologies, the length of the sensor is shortened mainly by optimizing the components within the circuit board or by using a multi-circuit board stacking structure to reduce the occupied area. However, the optimization space for components is often quite limited, and it is sometimes difficult to reduce the circuit board size by a large margin. But stacking multiple circuit boards increases the cross-sectional area, thereby increasing the overall size of the sensor. This arrangement is even more difficult for cylindrical sensors. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the existing technology in which irregularly shaped sensors adopt a multi-circuit board stacked arrangement structure, resulting in a large cross-sectional area and difficult installation.

[0005] To solve the above-mentioned technical problems, this utility model provides a flexible circuit board structure for a sensor, comprising: at least two sub-circuit boards and a pair of hinge joints, wherein the pair of hinge joints is disposed between two adjacent sub-circuit boards; each hinge joint includes a connecting plate, wherein a pair of first lugs are disposed on one side of the connecting plate, the pair of first lugs being arranged parallel to each other; a second lug is disposed on the other side of the connecting plate, the second lug being arranged perpendicular to the pair of first lugs; the pair of first lugs of the hinge joint are engaged with both sides of the sub-circuit boards, the pair of first lugs being hinged to the sub-circuit boards, and the two second lugs between the pair of hinge joints being hinged to each other.

[0006] In one embodiment of the present invention, a first shaft hole is coaxially formed on the surface of the first ear piece, and a connecting hole that mates with the first shaft hole is formed on the surface of the sub-circuit board.

[0007] In one embodiment of this utility model, a first pin is provided between the first shaft hole and the connecting hole.

[0008] In one embodiment of the present invention, a second shaft hole is provided on the surface of the second ear piece, and the axial direction of the second shaft hole is perpendicular to the axial direction of the first shaft hole.

[0009] In one embodiment of the present invention, a second pin is provided between a pair of said hinge joints, and the second pin is provided in a pair of second shaft holes.

[0010] In one embodiment of this utility model, the connecting plate, the first ear piece, and the second ear piece are integrally formed.

[0011] In one embodiment of this utility model, any two adjacent sub-circuit boards are electrically connected by wires.

[0012] In one embodiment of this utility model, the sub-circuit board is provided with a clearance surface on the side near the hinge joint.

[0013] An irregularly shaped sensor includes the aforementioned flexible circuit board structure.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The present invention discloses a flexible circuit board structure for sensors and an irregularly shaped sensor. The flexible circuit board structure of the present invention connects multiple sub-circuit boards through a pair of hinge joints, enabling any two sub-circuit boards to bend and rotate in different directions, so that the circuit board assembly forms a chain structure, which can adapt to sensors of different sizes and shapes. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the assembly structure of the hinge joint; Figure 3 for Figure 2 Schematic diagram of the hinge joint; Figure 4 for Figure 1 A schematic diagram of the neutron circuit board; Explanation of reference numerals in the accompanying drawings: 1. Sub-circuit board; 2. Hinge joint; 3. Wire; 11. Connecting hole; 12. Wire fixing hole; 13. Clearance surface; 21. Connecting plate; 22. First ear piece; 23. Second ear piece; 24. First pin; 25. Second pin; 221. First shaft hole; 231. Second shaft hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0017] Reference Figures 1-3 As shown, this utility model discloses a flexible circuit board structure for a sensor, including: at least two sub-circuit boards 1 and a pair of hinge joints 2, wherein the pair of hinge joints 2 are disposed between any two adjacent sub-circuit boards 1; each hinge joint 2 includes a connecting plate 21, wherein a pair of first lugs 22 are disposed on one side of the connecting plate 21, and the pair of first lugs 22 are disposed parallel to each other; a second lug 23 is disposed on the other side of the connecting plate 21, and the second lug 23 is disposed perpendicular to the pair of first lugs 22; the pair of first lugs 22 of the hinge joint 2 are engaged on both sides of the sub-circuit boards 1, the pair of first lugs 22 are hinged to the sub-circuit boards 1, and the two second lugs 23 between the pair of hinge joints 2 are hinged to each other.

[0018] The flexible circuit board structure in this invention connects multiple sub-circuit boards 1 through a pair of hinge joints 2, enabling any two sub-circuit boards 1 to bend and rotate in different directions, thus forming a chain structure for the circuit board assembly. This adapts to sensors of different sizes and shapes, bringing more flexibility to the sensor's shape design.

[0019] In this invention, a pair of hinge joints 2 are provided between any two sub-circuit boards 1. The hinge joint 2 has an ear-type structure. Specifically, a pair of first lugs 22 are provided on the side of the hinge joint 2 that is hinged to the sub-circuit board 1. The two first lugs 22 are engaged with the two sides of the sub-circuit board 1 and hinged together. A second lug 23 is provided on the other side of the hinge joint 2, and the installation direction of the second lug 23 is perpendicular to the two first lugs 22. In the actual assembly process, one end of the second lugs 23 of the two hinge joints 2 is hinged to each other, and the two second lugs 23 are respectively hinged to the sub-circuit boards 1 on both sides. After the installation is completed, there are three rotation axes between the two sub-circuit boards 1, which can realize two degrees of rotational freedom to work and adapt to installation at different angles and directions.

[0020] Furthermore, referring to Figures 2-4 As shown, the surface of the first ear piece 22 is coaxially provided with a first shaft hole 221, and the surface of the sub-circuit board 1 is provided with a connecting hole 11 that mates with the first shaft hole 221; a first pin 24 passes through between the first shaft hole 221 and the connecting hole 11.

[0021] Specifically, in the actual assembly process, a pair of first lugs 22 are snapped onto both sides of the sub-circuit board 1, and then the first pin 24 is passed through the first shaft hole 221 and the connecting hole 11 to achieve the hinge connection between the first lugs 22 and the sub-circuit board 1. Similarly, the surface of the second lug 23 is provided with a second shaft hole 231, and the axis of the second shaft hole 231 is perpendicular to the axis of the first shaft hole 221; a second pin 25 is passed between the pair of hinge joints 2, and the second pin 25 passes through the pair of second shaft holes 231. As a preferred embodiment of this utility model, the first pin 24 and the second pin 25 are assembled by interference fit or snap-fit ​​installation.

[0022] Furthermore, referring to Figure 3 As shown, the connecting plate 21, the first ear piece 22, and the second ear piece 23 are integrally formed.

[0023] Specifically, in this utility model, the hinge joint 2 is an integral structure, and its material can be metal or non-metal.

[0024] Furthermore, referring to Figure 1 As shown, any two adjacent sub-circuit boards 1 are electrically connected by wires 3. Each sub-circuit board 1 has a wire hole 12 on its surface that cooperates with the wires 3 to realize the transmission of signals between multiple sub-circuit boards 1.

[0025] Furthermore, referring to Figure 4 As shown, the sub-circuit board 1 has a clearance surface 13 on the side near the hinge joint 2; specifically, by providing clearance surfaces 13 on both sides of the circuit board, the adjustment angle of the circuit board can be increased.

[0026] An irregularly shaped sensor, including the flexible circuit board structure described in the above embodiments, such as U-shaped and L-shaped sensors, is suitable for more diverse installation scenarios.

[0027] In summary, this utility model introduces a flexible circuit board structure for sensors and an irregularly shaped sensor. The flexible circuit board structure of this utility model connects multiple sub-circuit boards 1 through a pair of hinge joints 2, enabling any two sub-circuit boards 1 to bend and rotate in different directions, so that the circuit board assembly forms a chain structure, which can adapt to sensors of different sizes and shapes, and bring more flexibility to the sensor shape design.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A flexible circuit board structure for a sensor, characterized in that, include: At least two sub-circuit boards and a pair of hinge joints, the pair of hinge joints being disposed between two adjacent sub-circuit boards; each hinge joint includes a connecting plate, one side of which is provided with a pair of first lugs, the pair of first lugs being arranged parallel to each other; the other side of which is provided with a second lug, the second lug being arranged perpendicular to the pair of first lugs; the pair of first lugs of the hinge joint are engaged on both sides of the sub-circuit boards, the pair of first lugs being hinged to the sub-circuit boards, and the two second lugs of the pair of hinge joints being hinged to each other.

2. The sensor flexible circuit board structure according to claim 1, characterized in that: The surface of the first ear piece is coaxially provided with a first shaft hole, and the surface of the sub-circuit board is provided with a connection hole that mates with the first shaft hole.

3. The sensor flexible circuit board structure according to claim 2, characterized in that: A first pin is inserted between the first shaft hole and the connecting hole.

4. The sensor flexible circuit board structure according to claim 2, characterized in that: The surface of the second ear piece is provided with a second shaft hole, and the axial direction of the second shaft hole is perpendicular to the axial direction of the first shaft hole.

5. The sensor flexible circuit board structure according to claim 4, characterized in that: A second pin is provided between the pair of hinge joints, and the second pin passes through a pair of second shaft holes.

6. The sensor flexible circuit board structure according to claim 1, characterized in that: The connecting plate, the first ear piece, and the second ear piece are integrally formed.

7. The sensor flexible circuit board structure according to claim 1, characterized in that: Any two adjacent sub-circuit boards are electrically connected by wires.

8. The sensor flexible circuit board structure according to claim 1, characterized in that: The sub-circuit board has a clearance surface on the side near the hinge joint.

9. An irregularly shaped sensor, characterized in that, Including the sensor flexible circuit board structure as described in any one of claims 1-8.

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