Rigid-flex printed circuit board with mounting holes

Abstract

The utility model relates to the field of rigid-flex boards, in particular to a rigid-flex board with mounting holes. The shell comprises a rigid area, a flexible area and a mounting area, the flexible area is respectively connected with the rigid area and the mounting area, and the mounting area is provided with a mounting hole; each of the rigid area and the mounting area comprises a rigid plate layer, a PP layer and a flexible plate layer, and the flexible area comprises a flexible plate layer and a flexible plate covering film. According to the rigid-flexible combined board, the independent installation area is arranged on the side edge of the flexible area, no circuit design is arranged in the installation area, the installation holes are drilled in the installation area, and the stacked arrangement of the installation area is consistent with the rigid area, so that the rigidity of the installation area is ensured, the installation area is not prone to being torn, the flexible area and the rigid area cannot be affected, and the installation holes with reliable quality are designed.

Description

Technical Field

[0001] The utility model relates to the field of rigid-flex boards, in particular to a rigid-flex board with mounting holes. Background Art

[0002] With the rapid development of high technology, rigid-flex boards have emerged. Over time, the market is no longer satisfied with standard rigid-flex boards, but is developing towards a variety of structures. Rigid-flex boards with mounting holes offer the advantages of easy installation and strong practicality. However, due to the large size of the mounting holes and the large number of circuits distributed in the rigid area, it is not convenient to set up mounting holes. Existing technology usually drills mounting holes in the flexible area, where there are fewer circuits. However, due to the low rigidity of the flexible area, drilling mounting holes in the flexible area is prone to delamination and tearing of the flexible area, resulting in low product yield. Utility Model Content

[0003] In order to overcome the above problems, the present invention provides a rigid-flex board with mounting holes. The technical solution adopted by the present invention to solve the technical problems is as follows:

[0004] A rigid-flexible board with mounting holes includes a rigid area, a flexible area and a mounting area. The flexible area is connected to the rigid area and the mounting area respectively, and the mounting area is provided with mounting holes. The rigid area and the mounting area both include a rigid board layer, a PP layer and a flexible board layer. The flexible area includes a flexible board layer and a soft board covering film.

[0005] Furthermore, the flexible board layers of the rigid area and the installation area are integrated with the flexible board layers of the flexible area to connect the rigid area and the flexible area, and to connect the installation area and the flexible area.

[0006] Furthermore, the PP layer is provided with a first window area, the first window area covers the flexible area, and the soft board covering film fills the first window area.

[0007] Furthermore, the width of the first window area is at least 3 mm greater than the width of the flexible zone.

[0008] Furthermore, a U-shaped recess is provided in the first window area to avoid the installation area.

[0009] Furthermore, the rigid board layer is provided with a second window area, and the second window area covers the flexible area so that the rigid board layer avoids the flexible area.

[0010] The beneficial effects of the utility model are:

[0011] The rigid-flex board includes a rigid area, a flexible area, and a mounting area. The flexible area is connected to the rigid and mounting areas, respectively, and the mounting area is provided with mounting holes. Both the rigid and mounting areas include a rigid board layer, a PP layer, and a flexible board layer. The flexible area includes a flexible board layer and a soft board cover film. The rigid-flex board of this application has a separate mounting area set up on the side of the flexible area. The mounting area has no circuit design and no mounting holes drilled in it. The stacking arrangement of the mounting area is consistent with that of the rigid area, ensuring the rigidity of the mounting area and preventing tearing, which means that it will not affect the flexible and rigid areas, and the mounting hole design is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0013] Figure 1 This is a top view of the rigid-flex board of the utility model;

[0014] Figure 2 This is a cross-sectional view of the rigid-flex board of the utility model;

[0015] Figure 3 This is an exploded view of the cross-sectional view of the rigid-flex board of the present invention;

[0016] Figure 4 It is a cross-sectional view of the mounting hole area of ​​the utility model;

[0017] Figure 5 It is a top view of the PP layer of the present invention.

[0018] Figure number mark:

[0019] 100, rigid area; 102, flexible area; 103, installation area; 104, installation hole; 105, rigid board layer; 106, PP layer; 107, flexible board layer; 108, soft board covering film; 109, first window area; 110, U-shaped concave block; 111, second window area. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a specific embodiment of the present invention "a rigid-flex board with board edge mounting holes" in conjunction with the accompanying drawings.

[0021] See also Figure 1-Figure 4In this embodiment, the rigid-flex board includes a rigid area 100, a flexible area 101, and an installation area 103. The left and right sides of the flexible area 101 are connected to the rigid area 100. Four installation areas 103 are connected to the upper and lower sides of the flexible area 101. The installation areas 103 are provided with installation holes 104. The rigid area 100 and the installation area 103 both include a rigid board layer 105, a PP layer 106, and a flexible board layer 107. The flexible area 101 includes a flexible board layer 107 and a soft board cover film 108. In this embodiment, the installation areas 103 are provided on the upper and lower sides of the flexible area 101 of the rigid-flex board. This does not occupy the space of the rigid area 100 or the flexible area 101. In addition, the laminated design of the installation area 103 is consistent with the laminated design of the rigid area 100, and has good rigidity. When drilling the installation holes 104, the drilling quality can be well guaranteed, and it is not easy to tear, thereby ensuring product yield. It should be noted that in this embodiment, there are four installation areas 103 and they are respectively arranged on the upper and lower sides of the flexible area 101. In other embodiments, the number and position of the installation areas 103 can be changed accordingly according to actual design, as long as they are connected to the flexible area 101.

[0022] See further Figure 2 and Figure 3 In this embodiment, the flexible board layer 107 of the rigid area 100 and the mounting area 103 is integrally formed with the flexible board layer 107 of the flexible area 101, thereby connecting the rigid area 100 and the flexible area 101, and connecting the mounting area 103 and the flexible area 101. The left and right sides of the flexible area 101 are connected to the rigid area 100 via the flexible board layer 107, and the upper and lower sides of the flexible area 101 are connected to the mounting area 103 via the flexible board layer 107. The connection between the mounting area 103 and the flexible area 101 via the flexible board layer 107 gives the mounting area 103 a certain degree of toughness, allowing the position of the mounting hole 104 to be moved within a certain range. This can accommodate installation situations with large tolerances, making the rigid-flex board suitable for a wider range of installation environments.

[0023] See further Figure 5 In this embodiment, the PP layer 106 is provided with a first window area 109 , the first window area 109 covers the flexible area 101 , and a soft board covering film 108 is used to fill the first window area 109 to protect the flexible area 101 .

[0024] More specifically, in this embodiment, to ensure that the soft board cover film 108 can completely cover the flexible area 101, the width of the first window area 109 is at least 3 mm larger than the width of the flexible area 101, preferably 1.5 mm larger on one side.

[0025] Furthermore, in this embodiment, in order to prevent the natural covering film 108 from interfering with the installation area 103 , the first window area 109 is provided with a U-shaped recess 110 to avoid the installation area 103 .

[0026] See further Figure 1 and Figure 2 In this embodiment, the rigid board layer 105 is provided with a second window area 111, and the second window area 111 covers the flexible area 101, so that the rigid board layer 105 avoids the flexible area 101, prevents the rigid area 100 from interfering with the flexible area 101, and ensures the flexibility of the flexible area 101 of the flexible composite board.

[0027] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A rigid-flex board with mounting holes, characterized in that: The invention comprises a rigid area (100), a flexible area (101) and an installation area (103); the flexible area (101) is connected to the rigid area (100) and the installation area (103) respectively; the installation area (103) is provided with an installation hole (104); the rigid area (100) and the installation area (103) both comprise a rigid board layer (105), a PP layer (106) and a flexible board layer (107); the flexible area (101) comprises a flexible board layer (107) and a soft board covering film (108).

2. The rigid-flex board with mounting holes according to claim 1, wherein: The flexible board layer (107) of the rigid area (100) and the installation area (103) is integrally arranged with the flexible board layer (107) of the flexible area (101) to connect the rigid area (100) and the flexible area (101), and to connect the installation area (103) and the flexible area (101).

3. The rigid-flex board with mounting holes according to claim 2, wherein: The PP layer (106) is provided with a first window area (109), the first window area (109) covers the flexible area (101), and the soft board covering film (108) fills the first window area (109).

4. The rigid-flex board with mounting holes according to claim 3, characterized in that: The width of the first window area (109) is at least 3 mm greater than the width of the flexible zone (101).

5. The rigid-flex board with mounting holes according to claim 4, characterized in that: The first window area (109) is provided with a U-shaped recess (110) to avoid the installation area (103).

6. The rigid-flex board with mounting holes according to claim 3, characterized in that: The rigid board layer (105) is provided with a second window area (111), and the second window area (111) covers the flexible area (101), so that the rigid board layer (105) avoids the flexible area (101).

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