Edge sealing structure for preventing FPC (Flexible Printed Circuit) from being scratched

Abstract

The utility model discloses an anti-scratch FPC edge sealing structure, which comprises a camera module body, the camera module body comprises a PCB and a lens carried on the PCB, the camera module body is bound with an FPC, one end of the FPC is bent to the back of the PCB, and the other end of the FPC is bent to the back of the PCB. Edge sealing glue used for covering burrs is arranged on the edge, making contact with the FPC, of the PCB. The edge sealing structure has the effects that burrs at the contact position of the PCB and the FPC are covered, and the FPC is prevented from being scratched by the burrs.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to an edge sealing structure for preventing an FPC from being scratched. Background Art

[0002] The camera module is composed of capacitors, chips, components, connectors, flexible circuit boards, lens + holder integrated materials and other main components. For the camera module with FPC + PCB structure, when the customer installs the machine, the FPC will be bent so that the FPC is bent to the back of the PCB board, and the bent FPC will contact or press against the edge of the PCB.

[0003] The PCB board in the module is generally a large board structure, which is divided into the PCB board required by the module through machine punching or micro-point connection. This will cause the module PCB board to have burrs or rough edges. When the FPC is bent to the edge of the PCB board, the FPC will be scratched by the rough edges of the PCB board. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an edge sealing structure for preventing FPC from being scratched.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A sealing edge structure for preventing an FPC from being scratched comprises: a camera module body, the camera module body comprising a PCB board and a lens mounted on the PCB board, an FPC bound to the camera module body, one end of the FPC being bent to the back of the PCB board, and an edge sealing glue for covering burrs being arranged at the edge where the PCB board contacts the FPC.

[0007] In one embodiment, a bend is provided on the FPC, the bend is provided along the thickness direction of the PCB board, the FPC is bent along the bend to the back side of the PCB board, and the bend is provided corresponding to the edge of the PCB board.

[0008] In one embodiment, the edge sealing adhesive is a self-curing adhesive.

[0009] In one of the embodiments, the bending part of the FPC is opposite to the lower end of the PCB board, the edge sealing glue is C-shaped and surrounds the lower end of the PCB board, the length of the edge sealing glue is adapted to the thickness of the PCB board, and the two sides of the edge sealing glue respectively cover the two outer sides of the PCB board.

[0010] In one embodiment, the thickness of the edge sealing glue at the lower end of the PCB board is greater than the thickness of the edge sealing glue at two outer sides of the PCB board.

[0011] In one embodiment, the edge sealing adhesive at the lower end of the PCB board has a thickness of 0.5 mm to 1.0 mm.

[0012] In one embodiment, the edge sealing glue located on two outer sides of the PCB board has a thickness of 0.3 mm to 0.5 mm.

[0013] In one embodiment, the edge sealing adhesive is black or green, and the color of the edge sealing adhesive matches the color of the PCB board.

[0014] In one embodiment, the thickness of the PCB board is 0.9 mm-1.1 mm.

[0015] In one embodiment, the thickness of the FPC is 0.1 mm-0.14 mm.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model discloses an edge sealing structure for preventing the FPC from being scratched, which covers the burrs at the contact position between the PCB board and the FPC by setting edge sealing glue, so as to isolate the burrs and prevent the burrs from scratching the FPC, thereby ensuring the performance of the FPC. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the structure of the FPC before bending in an edge sealing structure for preventing the FPC from being scratched provided by the utility model;

[0020] Figure 2 A schematic diagram of the structure of an FPC after bending in an edge sealing structure for preventing the FPC from being scratched provided by the utility model;

[0021] Figure 3 for Figure 1 Enlarged schematic diagram of part A.

[0022] Description of the drawings: 10, camera module body; 20, PCB board; 30, lens; 40, FPC; 41, bending point; 50, edge sealing glue. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A sealing structure to prevent scratching of FPC, refer to Figure 1 , including a camera module body 10, the camera module body 10 includes a PCB board 20 and a lens 30 mounted on the PCB board 20, a photosensitive chip and multiple electronic components are also arranged on the PCB board 20, and the lens 30 is mounted above the photosensitive chip. The PCB board 20 is a circuit substrate for the photosensitive chip and multiple electronic components.

[0025] Further, refer to Figure 1 , the thickness of the PCB board 20 is 0.9mm-1.1mm.

[0026] Reference Figure 1 and Figure 2 The camera module body 10 is bound with FPC40, which is used to connect the PCB board 20 and the whole machine host. The thickness of FPC40 is 0.1mm-0.14mm. When the camera module body 10 is not assembled, FPC40 is arranged in parallel with the PCB board 20. When the camera module body 10 is assembled, FPC40 needs to be bent at an angle of 90 degrees or more to bend to the back of the PCB board 20. When bending, FPC40 will contact or even press against the edge of the PCB board 20, so that FPC40 may be scratched by the burrs on the edge of the PCB board 20.

[0027] Reference Figure 1 and Figure 2 In order to prevent the FPC 40 from being scratched by the burrs at the edge of the PCB board 20, an edge sealing glue 50 is provided at the edge of the PCB board 20, and the edge sealing glue 50 covers the position of the burrs to isolate the FPC 40 from the burrs.

[0028] Reference Figure 1 and Figure 2 A bending portion 41 is provided on the FPC 40 , and the bending portion 41 is provided along the thickness direction of the PCB board 20 . The FPC 40 is bent along the bending portion 41 , and the bending portion 41 is provided corresponding to the edge of the PCB board 20 .

[0029] Reference Figure 1 and Figure 2 The edge sealing glue 50 is a self-solidifying glue, which will solidify by itself when applied to the burrs at the edge of the PCB board 20 to cover the periphery of the burrs.

[0030] Reference Figure 1 and Figure 2In this embodiment, the bending part 41 of the FPC 40 is directly opposite to the lower end of the PCB board 20, and the edge sealing glue 50 surrounds the lower end of the PCB board 20 in a C shape. The length of the edge sealing glue 50 is adapted to the thickness of the PCB board 20, and the two sides of the edge sealing glue 50 respectively cover the two outer sides of the PCB board 20, so that the edge sealing glue 50 surrounds the contact position between the PCB board 20 and the bending part 41 of the FPC 40 to isolate the burrs and prevent the burrs from scratching the FPC 40.

[0031] Reference Figure 2 and Figure 3 The thickness of the edge sealant 50 at the lower end of the PCB board 20 is greater than the thickness of the edge sealant 50 at the two outer sides of the PCB board 20. The thickness of the edge sealant 50 at the lower end of the PCB board 20 is 0.5mm-1mm, so as to completely cover the burrs and prevent the burrs from penetrating the edge sealant 50. The thickness of the edge sealant 50 at the two outer sides of the PCB board 20 is 0.3mm-0.5mm. After the FPC 40 is bent to the back of the PCB board 20, the outer side of the PCB board 20 contacts the FPC 40. The edge sealant 50 at the outer side of the PCB board 20 ensures that the FPC 40 does not contact the burrs while avoiding being too thick to affect the fitting of the FPC 40 and the PCB board 20.

[0032] Further, refer to Figure 2 and Figure 3 The color of the edge sealing glue 50 is black or green, and the color of the edge sealing glue 50 matches the color of the PCB board 20 to avoid inconsistency between the color of the edge sealing glue 50 and the color of the PCB board 20.

[0033] Reference Figure 2 and Figure 3 By covering the position of the PCB board 20 corresponding to the bending part 41 of the FPC 40 with edge sealing glue 50, the edge sealing glue 50 covers the burr position to isolate the burr. When the FPC 40 is bent, it will not be scratched by the burr on the PCB board 20, thereby ensuring the performance of the FPC 40.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An edge sealing structure for preventing FPC from being scratched, characterized in that: include: A camera module body (10), the camera module body (10) comprising a PCB board (20) and a lens (30) mounted on the PCB board (20), an FPC (40) bound to the camera module body (10), one end of the FPC (40) being bent to the back of the PCB board (20), and an edge sealing glue (50) for covering burrs being provided at the edge where the PCB board (20) contacts the FPC (40).

2. The edge sealing structure for preventing FPC from being scratched according to claim 1, characterized in that: The FPC (40) is provided with a bending portion (41), the bending portion (41) is arranged along the thickness direction of the PCB board (20), the FPC (40) is bent along the bending portion (41) to the back side of the PCB board (20), and the bending portion (41) is arranged corresponding to the edge of the PCB board (20).

3. The edge sealing structure for preventing FPC from being scratched according to claim 2, characterized in that: The edge sealing glue (50) is a self-curing glue.

4. The edge sealing structure for preventing FPC from being scratched according to claim 3, characterized in that: The bending part (41) of the FPC (40) is directly opposite to the lower end of the PCB board (20); the edge sealing glue (50) is C-shaped and surrounds the lower end of the PCB board (20); the length of the edge sealing glue (50) is adapted to the thickness of the PCB board (20); and the two sides of the edge sealing glue (50) respectively cover the two outer sides of the PCB board (20).

5. The edge sealing structure for preventing FPC from being scratched according to claim 4, characterized in that: The thickness of the edge sealing glue (50) located at the lower end of the PCB board (20) is greater than the thickness of the edge sealing glue (50) located at two outer sides of the PCB board (20).

6. The edge sealing structure for preventing FPC from being scratched according to claim 5, characterized in that: The edge sealing glue (50) located at the lower end of the PCB board (20) has a thickness of 0.5 mm to 1.0 mm.

7. The edge sealing structure for preventing FPC from being scratched according to claim 6, characterized in that: The edge sealing glue (50) located on two outer sides of the PCB board (20) has a thickness of 0.3 mm to 0.5 mm.

8. The edge sealing structure for preventing FPC from being scratched according to claim 7, characterized in that: The color of the edge sealing adhesive (50) is black or green, and the color of the edge sealing adhesive (50) matches the color of the PCB board (20).

9. The edge sealing structure for preventing FPC from being scratched according to claim 1, characterized in that: The thickness of the PCB board (20) is 0.9 mm-1.1 mm.

10. The edge sealing structure for preventing FPC from being scratched according to claim 1, characterized in that: The thickness of the FPC (40) is 0.1 mm-0.14 mm.

Images