Visual structure of FPC board welding area

Abstract

The utility model discloses a structure with a visual FPC board welding area. The structure comprises a backlight FPC board, a module FPC board, an insulating film and a conductive film. The insulating film is transparent and visual, and the backlight FPC board is electrically connected with the component area. The insulating film and the conducting film are arranged on the same side of the module FPC board, the conducting film covers the component area and the non-component area, and the insulating film covers the component area and the joint of the backlight FPC board and the component area. And the insulating film is arranged between the module FPC board and the conductive film and is used for preventing short circuit of the component area. Since the conductive film cannot see through the insulating film and the conductive film is provided with the opening at the joint of the backlight FPC board and the component area, quality control personnel can observe the joint of the backlight FPC board and the component area below the insulating film through the opening so as to observe whether the joint meets the position requirement of connection or not, and the conductive film does not need to be torn for inspection. Therefore, the working efficiency of quality control personnel is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a structure for visualizing a welding area of ​​an FPC board. Background Art

[0002] Electronic devices need to integrate components on the circuit board, and can reduce the use of wires, becoming an indispensable component today. Staff usually need to check some important positions when conducting QC inspections. In the prior art, FPC is prone to problems when sticking the insulating film, so it is necessary to inspect the welding position. When inspecting the welding position of the FPC, since the insulating film is opaque, the insulating film needs to be torn off, and then the insulating film needs to be pasted after inspection. This is a reverse process operation, with low production efficiency and high cost. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a structure for visualizing the welding area of ​​an FPC board.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A structure for visualizing a welding area of ​​an FPC board comprises: a backlight FPC board, a module FPC board, a transparent insulating film and a conductive film; the module FPC board comprises a component area and a non-component area, the backlight FPC board is electrically connected to the component area, the insulating film and the conductive film are arranged on the same side of the module FPC board, the conductive film covers the component area and the non-component area, the insulating film covers the component area and the connection between the backlight FPC board and the component area, and the insulating film is arranged between the module FPC board and the conductive film, the insulating film is used to prevent the component area from short-circuiting, and the conductive film has an opening at the connection between the backlight FPC board and the component area.

[0006] In one embodiment, the insulating film is a PET film.

[0007] In one embodiment, the thickness of the insulating film is 0.1 mm to 0.2 mm.

[0008] In one embodiment, the conductive film is 4 mm to 6 mm larger than the edge of the module FPC board.

[0009] In one embodiment, the conductive film is 5 mm larger than the edge of the module FPC board.

[0010] In one of the embodiments, the module FPC board is configured as a "convex" shape.

[0011] In one of the embodiments, the module FPC board also includes a connection area, and the connection area is provided with a connector.

[0012] In one embodiment, the conductive film is provided with an escape opening at the connector, and the insulating film is provided with an extended film at the escape opening.

[0013] In one embodiment, the width of the extended film is 0.5 mm.

[0014] In one of the embodiments, the backlight FPC board is welded to the component area on the module FPC board.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The structure of the FPC board welding area visualization of the utility model is provided by setting a backlight FPC board, a module FPC board, an insulating film and a conductive film. The insulating film is transparent and visualized, and the module FPC board includes a component area and a non-component area, and the backlight FPC board is electrically connected to the component area. The insulating film and the conductive film are arranged on the same side of the module FPC board, the conductive film covers the component area and the non-component area, and the insulating film covers the connection between the component area and the backlight FPC board and the component area. And the insulating film is arranged between the module FPC board and the conductive film, and the insulating film is used to prevent the component area from short-circuiting. Since the conductive film cannot be seen through the insulating film, the conductive film is provided with an opening at the connection between the backlight FPC board and the component area, and the quality control personnel can observe the connection between the backlight FPC board and the component area under the insulating film through the opening, so as to observe whether the connection meets the connection position requirements, without tearing the conductive film for inspection, thereby improving the work efficiency of the quality control personnel and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A structural schematic diagram of a visualized structure of a welding area of ​​an FPC board in an embodiment of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of a module FPC board and a backlight FPC board in one embodiment of the utility model.

[0020] Reference numerals:

[0021] Backlight FPC board 10 , module FPC board 20 , component area 21 , non-component area 22 , connector 23 , insulating film 30 , conductive film 40 , opening 41 . DETAILED DESCRIPTION

[0022] 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.

[0023] This application proposes a structure for visualizing the welding area of ​​an FPC board. Figure 1 and Figure 2 , including a backlight FPC board 10, a module FPC board 20, an insulating film 30 and a conductive film 40. The insulating film 30 is transparent and visible, and the module FPC board 20 includes a component area 21 and a non-component area 22, and the backlight FPC board 10 is electrically connected to the component area 21. The insulating film 30 and the conductive film 40 are arranged on the same side of the module FPC board 20, and the conductive film 40 covers the component area 21 and the non-component area 22, and the insulating film 30 covers the component area 21 and the connection between the backlight FPC board 10 and the component area 21. The insulating film 30 is arranged between the module FPC board 20 and the conductive film 40, and the insulating film 30 is used to prevent the component area 21 from short-circuiting, and the conductive film 40 is used to shield the influence of external interference signals on components and sensitive circuits. Since the conductive film 40 cannot see through the insulating film 30, the conductive film 40 has an opening 41 at the connection between the backlight FPC board 10 and the component area 21. The quality control personnel can observe the connection between the backlight FPC board 10 and the component area 21 under the insulating film 30 through the opening 41, so as to observe whether the connection meets the connection position requirements, without tearing the conductive film 40 for inspection, thereby improving the work efficiency of the quality control personnel and reducing labor costs. Preferably, the insulating film 30 is a PET film.

[0024] In one embodiment, the thickness of the insulating film 30 is 0.1 mm to 0.2 mm, and the insulating film 30 is not too thin. A certain thickness is required to ensure that the components in the component area 21 will not short-circuit. Further, the conductive film 40 is 4 mm to 6 mm larger than the edge of the module FPC board 20 to avoid wrinkles of the conductive film 40 under certain circumstances, and a certain size is reserved for the conductive film 40 to ensure the anti-external interference performance of the module FPC board 20. Preferably, the conductive film 40 is 5 mm larger than the edge of the module FPC board 20.

[0025] It should be noted that the conductive film 40 is an opaque film layer that cannot be seen through by naked eyes, so the conductive film 40 is provided with an opening 41 at the connection between the backlight FPC board 10 and the component area 21 .

[0026] In another embodiment, see Figure 1 and Figure 2The module FPC board 20 also includes a connection area, and a connector 23 is provided in the connection area to achieve rapid electrical connection with the outside world and improve assembly efficiency. Furthermore, the conductive film 40 is provided with a avoidance port at the connector 23, and the insulating film 30 is provided with an extension film at the avoidance port to prevent the conductive film 40 from accidentally touching the connector 23 and causing a short circuit, further ensuring the module FPC board 20's ability to resist external interference, and the extension film cannot cover the connector 23, and a certain position needs to be reserved for inserting the FPC, so the width of the extension film is set to 0.5mm. The module FPC board 20 is set to a "convex" shape, the component area and the non-component area form a large rectangular structure, and the connection area forms another small rectangular structure, and the small rectangular structure is connected to the long side of the large rectangular structure. In addition, the backlight FPC board 10 is welded to the component area 21 on the module FPC board 20 , and the quality control personnel can directly observe whether the welding position meets the preset standard through the opening 41 on the conductive film 40 without tearing the conductive film 40 , thereby ensuring the placement of the conductive film 40 .

[0027] 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. A structure for visualizing the welding area of ​​an FPC board, characterized in that: include: Backlight FPC board, module FPC board, transparent insulating film and conductive film; The module FPC board includes a component area and a non-component area, the backlight FPC board is electrically connected to the component area, the insulating film and the conductive film are arranged on the same side of the module FPC board, the conductive film covers the component area and the non-component area, the insulating film covers the component area and the connection between the backlight FPC board and the component area, and the insulating film is arranged between the module FPC board and the conductive film, the insulating film is used to prevent the component area from short circuiting, and the conductive film has an opening at the connection between the backlight FPC board and the component area.

2. The structure for visualizing the welding area of ​​the FPC board according to claim 1, characterized in that: The insulating film is a PET film.

3. The structure for visualizing the welding area of ​​the FPC board according to claim 1, characterized in that: The thickness of the insulating film is 0.1 mm to 0.2 mm.

4. The structure for visualizing the welding area of ​​an FPC board according to claim 1, characterized in that: The conductive film is 4 mm to 6 mm larger than the edge of the module FPC board.

5. The structure for visualizing the welding area of ​​an FPC board according to claim 4, characterized in that: The conductive film is 5 mm larger than the edge of the module FPC board.

6. The structure for visualizing the welding area of ​​an FPC board according to claim 1, characterized in that: The module FPC board is configured in a "convex" shape.

7. The structure for visualizing the welding area of ​​an FPC board according to claim 1, characterized in that: The module FPC board also includes a connection area, and the connection area is provided with a connector.

8. The structure for visualizing the welding area of ​​an FPC board according to claim 7, characterized in that: The conductive film is provided with an escape opening at the connector, and the insulating film is provided with an extended film at the escape opening.

9. The structure for visualizing the welding area of ​​an FPC board according to claim 8, characterized in that: The width of the extended film is 0.5 mm.

10. The structure for visualizing the welding area of ​​an FPC board according to claim 1, characterized in that: The backlight FPC board is welded to the component area on the module FPC board.

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