Flexible circuit board with folding structure

Abstract

The utility model discloses a flexible circuit board with a folding structure, which belongs to the technical field of flexible circuit boards, and comprises a first supporting piece, a second supporting piece, a limiting plate assembly, a first connecting piece and a second connecting piece, the first supporting piece and the second supporting piece are both used for supporting and limiting the side walls of the two sides of the flexible circuit board, and the limiting plate assemblies are used for being matched with the first supporting piece and the second supporting piece to press and limit the flexible circuit board. The second connecting piece is used for being hinged to the first connecting piece. The two sides of the flexible circuit board can be limited and supported through the first supporting piece and the second supporting piece which are arranged in a spaced mode, the connecting stability of the flexible circuit board is enhanced through the limiting plate assembly, and meanwhile the first supporting piece and the second supporting piece are hinged, so that supporting of bending of the flexible circuit board can be achieved.

Description

Technical Field

[0001] This application relates to the field of flexible circuit board technology, and in particular, to a flexible circuit board with a folded structure. Background Technology

[0002] The information provided in this section is for the purpose of generally presenting the background of this application. To the extent described in this section, the work of the currently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art of this application.

[0003] Flexible printed circuit boards (PCBs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. Flexible PCBs offer many advantages that rigid PCBs lack. For example, they can be freely bent, rolled, and folded. Flexible circuits provide excellent electrical performance, meet the design needs of smaller and higher-density installations, and also help reduce assembly steps and enhance reliability.

[0004] Conventional flexible circuit boards are mostly flexible. Although they can be bent, they have poor fixation within equipment, which affects their performance. This makes the folding performance of general flexible circuit boards poor during installation and use, which imposes certain limitations on the installation structure and space of flexible circuit boards.

[0005] For example, Chinese Patent Publication No. CN218959190U discloses a flexible circuit board assembly, photographic device and electronic product, which forms a rotationally symmetrical structure by repeatedly bending and folding the middle part of the substrate, and uses a curing part to cure the bent and folded parts of the substrate. This increases the number of folds of the substrate and reduces the swing load of the movable parts on the substrate.

[0006] However, the bending structure of existing flexible circuit boards is difficult to assemble, making it inconvenient to repair and replace. Furthermore, the manufacturing and maintenance costs of moving parts are high, and there are problems such as poor fixation of the flexible circuit board within the equipment and insufficient support when the flexible circuit board is bent, which affects its performance. Utility Model Content

[0007] In view of at least one of the above technical problems, this application provides a flexible circuit board with a folding structure, which can limit and support both sides of the flexible circuit board through a first support member and a second support member arranged at intervals, and strengthen the connection stability of the flexible circuit board through a limiting plate assembly. At the same time, the first support member and the second support member are hinged, which can realize the support for bending of the flexible circuit board.

[0008] According to one aspect of this application, a flexible circuit board with a folded structure is provided, including a first support member, a second support member, a limiting plate assembly, a first connector, and a second connector:

[0009] The first support member and the second support member are spaced apart on both sides of the flexible circuit board. Both the first support member and the second support member are used to support and limit the side walls on both sides of the flexible circuit board. The limiting plate assembly is arranged in multiple groups, and each group of limiting plate assemblies is used to cooperate with the first support member and the second support member to press and limit the flexible circuit board.

[0010] The first connector is located on the side of the first support member closer to the second support member, and the second connector is located on the side of the second support member closer to the first support member. The second connector is used to hinge with the first connector, so that when the flexible circuit board bends around the hinge point between the second connector and the first connector, the second connector and the first connector respectively drive the second support member and the first support member to rotate.

[0011] In some embodiments of this application, the first connector has a mounting groove on the side near the second connector, a rotating shaft is provided in the mounting groove, the first end of the second connector is connected to the rotating shaft, and the second end of the second connector is connected to the second support.

[0012] In some embodiments of this application, the first support member and the second support member have the same structure and both include a support side plate and a support bottom plate. The support side plate is vertically connected to the support bottom plate. The support bottom plate is used to support the bottom of the flexible circuit board. The support side plate is used to limit the side wall of the flexible circuit board. The limiting plate assembly is used to cooperate with the support bottom plate to press and limit the flexible circuit board.

[0013] In some embodiments of this application, the first support member and the second support member have the same structure and both include a support side plate and a support bottom plate. The support side plate is vertically connected to the support bottom plate. The support bottom plate is used to support the bottom of the flexible circuit board. The support side plate is used to limit the side wall of the flexible circuit board. The limiting plate assembly is used to cooperate with the support bottom plate to press and limit the flexible circuit board.

[0014] In some embodiments of this application, the limiting plate assembly includes a limiting plate and a locking member. The limiting plate is used to cooperate with the supporting base plate to press and limit the flexible circuit board. The limiting plate is provided with a plurality of locking screw holes spaced apart. The locking member is used to pass through the locking screw holes and the first screw hole preset on the flexible circuit board and the second screw hole preset on the supporting base plate in sequence to connect and fasten the limiting plate to the flexible circuit board and the supporting base plate.

[0015] In some embodiments of this application, a limiting baffle is provided on the side of the support base plate near the sidewall of the flexible circuit board along its length direction. The limiting baffle is used to limit the sidewall of the flexible circuit board along its length direction.

[0016] In some embodiments of this application, the flexible circuit board with the folded structure further includes multiple sets of buffer plate assemblies, each set of buffer plate assemblies being connected to the sidewalls of the first support member and the second support member respectively, and the buffer assembly is used to buffer and protect the sidewalls of the flexible circuit board from impacts.

[0017] In some embodiments of this application, the buffer plate assembly includes a buffer plate and support rods. Multiple support rods are provided. The first end of each support rod is connected to the side wall of the first support member and the second support member respectively by bolts. The second end of each support rod is provided with a second limiting sleeve. The buffer plate is used to insert into the second limiting sleeve of the adjacent support rod.

[0018] In some embodiments of this application, the buffer plate is made of an elastic material.

[0019] This application has the following beneficial effects:

[0020] The flexible circuit board with a folding structure of this application is provided with a first support member and a second support member spaced apart on both sides of the flexible circuit board. That is, the two sides of the flexible circuit board are supported and limited by a pair of first support members and a pair of second support members. At the same time, the flexible circuit board is pressed and limited by a limiting plate assembly in cooperation with the first support member and the second support member respectively. The first support member and the second support member are hinged by a first connector and a second connector, so as to strengthen the support when the flexible circuit board is bent and ensure the stability of the fixed installation of the flexible circuit board in the bent state.

[0021] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above simultaneously. In addition to the purposes, features, and advantages described above, this application also has other purposes, features, and advantages. The application will be further described in detail below with reference to figures. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the hinged connection between the first connector and the second connector according to a preferred embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the limiting plate assembly according to a preferred embodiment of this application;

[0026] Figure 4This is a schematic diagram of the limiting plate pressing and installing the flexible circuit board according to a preferred embodiment of this application;

[0027] Legend: 100 Flexible circuit board; 1 First support member; 11 Support side plate; 12 Support base plate; 13 Limiting baffle; 2 Second support member; 3 Limiting plate assembly; 31 Limiting plate; 32 Locking member; 4 First connecting member; 5 Second connecting member; 6 Support rod; 7 Buffer plate; 8 Rotating shaft; 9 First limiting sleeve; 10 Second limiting sleeve. Detailed Implementation

[0028] The embodiments of this application are described in detail below with reference to the accompanying drawings; however, this application may be implemented in a variety of different ways as defined and covered below.

[0029] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application; Figure 2 This is a schematic diagram of the hinged connection between the first connector and the second connector according to a preferred embodiment of this application; Figure 3 This is a schematic diagram of the structure of the limiting plate assembly according to a preferred embodiment of this application; Figure 4 This is a schematic diagram of the limiting plate pressing and installing the flexible circuit board according to a preferred embodiment of this application.

[0030] A flexible circuit board with a folding structure includes a first support member 1, a second support member 2, a limiting plate assembly 3, a first connector 4, and a second connector 5.

[0031] The first support member 1 and the second support member 2 are spaced apart on both sides of the flexible circuit board 100. The first support member 1 and the second support member 2 are used to support and limit the side walls on both sides of the flexible circuit board 100. The limiting plate assembly 3 is arranged in multiple groups. Each group of limiting plate assembly 3 is used to cooperate with the first support member 1 and the second support member 2 to press and limit the flexible circuit board 100.

[0032] The first connector 4 is disposed on the side of the first support 1 near the second support 2, and the second connector 5 is disposed on the side of the second support 2 near the first support 1. The second connector 5 is used to hinge with the first connector 4, so that when the flexible circuit board 100 bends around the hinge point between the second connector 5 and the first connector 4, the second support 2 and the first support 1 are rotated respectively through the second connector 5 and the first connector 4.

[0033] Here, "first connector 4 and second connector 5" refers to a structure that is hinged to each other. In some embodiments, both first connector 4 and second connector 5 are plate-shaped structures.

[0034] The flexible circuit board with a folding structure of this application is provided on both sides of the flexible circuit board 100 by a first support member 1 and a second support member 2 spaced apart. That is, the two sides of the flexible circuit board 100 are supported and limited by a pair of first support members 1 and a pair of second support members 2. At the same time, the flexible circuit board 100 is pressed and limited by a limiting plate assembly 3 in cooperation with the first support members 1 and the second support members 2 respectively. The first support member 1 and the second support member 2 are hinged by a first connector 4 and a second connector 5, so that the flexible circuit board 100 can be reinforced when it is bent, and the stability of the fixed installation of the flexible circuit board 100 in the bent state can be guaranteed.

[0035] Preferably, please refer to Figure 2 As shown, the first connector 4 has a mounting groove on the side near the second connector 5, and a rotating shaft 8 is provided in the mounting groove. The first end of the second connector 5 is connected to the rotating shaft 8, and the second end of the second connector 5 is connected to the second support 2.

[0036] It is understandable that the second connecting piece 5 is hinged to the first connecting piece 4 through the pivot 8, and the second connecting piece 5 can be fastened to the pivot 8 by bolts, which facilitates the disassembly of the second connecting piece 5.

[0037] Preferably, please refer to Figure 1 , 4 As shown, the first support member 1 and the second support member 2 have the same structure and both include a support side plate 11 and a support base plate 12. The support side plate 11 is vertically connected to the support base plate 12. The support base plate 12 is used to support the bottom of the flexible circuit board 100. The support side plate 11 is used to limit the side wall of the flexible circuit board 100. The limiting plate assembly 3 is used to cooperate with the support base plate 12 to press and limit the flexible circuit board 100.

[0038] It is understood that both the first support member 1 and the second support member 2 are L-shaped structures, and both support the bottom of the flexible circuit board 100 through the support base plate 12 and limit the side of the flexible circuit board 100 through the support side plate 11. At the same time, the limiting plate assembly 3 presses and limits the flexible circuit board 100 on the support base plate 12, which facilitates the overall assembly and disassembly of the flexible circuit board 100.

[0039] Preferably, please refer to Figure 3 , 4 As shown, the limiting plate assembly 3 includes a limiting plate 31 and a locking member 32. The limiting plate 31 is used to cooperate with the supporting base plate 12 to press and limit the flexible circuit board 100. The limiting plate 31 is provided with a plurality of locking screw holes spaced apart. The locking member 32 is used to pass through the locking screw holes and the first screw hole on the flexible circuit board 100 and the second screw hole on the supporting base plate 12 in sequence to connect and fasten the limiting plate 31 to the flexible circuit board 100 and the supporting base plate 12.

[0040] It is understandable that the limiting plate 31 is connected and fastened by multiple locking parts 32, which strengthens the connection stability between the flexible circuit board 100 and the first support 1 and the second support 2, and helps to improve the support strength of the flexible circuit board 100 when it is bent.

[0041] Optionally, the locking element 32 uses a locking screw hole, and the use of standard parts can reduce manufacturing costs and replacement and maintenance costs.

[0042] Preferably, please refer to Figure 3 As shown, a limiting baffle 13 is provided on the side of the support base plate 12 near the side wall of the flexible circuit board 100 along its length direction. The limiting baffle 13 is used to limit the side wall of the flexible circuit board 100 along its length direction.

[0043] Understandably, the limiting baffle 13 can further improve the stability of the limiting installation of the flexible circuit board 100, reduce the displacement of the flexible circuit board 100 in different directions, and ensure the support strength of the first support member 1 and the second support member 2 for the flexible circuit board 100.

[0044] Preferably, please refer to Figure 1 As shown, the flexible circuit board with the folded structure also includes multiple sets of buffer plate assemblies. Each set of buffer plate assemblies is connected to the sidewalls of the first support member 1 and the second support member 2 respectively. The buffer assembly is used to buffer and protect the sidewalls of the flexible circuit board 100 from impacts.

[0045] Specifically, the buffer plate assembly includes a buffer plate 7 and support rods 6. Multiple support rods 6 are provided. The first end of each support rod 6 is connected to the side wall of the first support member 1 and the second support member 2 respectively by bolts. The second end of each support rod 6 is provided with a second limiting sleeve 10. The buffer plate 7 is used to insert into the second limiting sleeve 10 of the adjacent support rod 6.

[0046] It is understood that the buffer plate 7 is connected to the side walls of the first support member 1 and the second support member 2 through the support rod 6, and there are gaps between the buffer plate 7 and the side walls of the first support member 1 and the second support member 2, so as to realize the buffer protection of the side walls of the first support member 1 and the second support member 2 by the buffer plate 7, thereby providing buffer protection for both sides of the flexible circuit board 100, which is conducive to improving the installation stability of the flexible circuit board 100.

[0047] Preferably, the buffer plate 7 is made of an elastic material.

[0048] Understandably, the buffer plate 7 made of elastic material can play an effective role in buffering and protection, and improve the service life of the buffer plate 7 itself, reducing the problems such as bending and breaking that the buffer plate 7 is prone to when it is subjected to impact.

[0049] In some embodiments, the sidewalls of the first connector 4 and the second connector 5 are provided with first limiting sleeves 9. When a buffer plate 7 needs to be provided between the support rod 6 and the first connector 4 or the second connector 5, the two ends of the buffer plate 7 can be limited by the first limiting sleeve 9 and the second limiting sleeve 10 on the support rod 6, so that the sidewalls of the flexible circuit board 100 can be fully buffered and protected by the buffer plates 7 that are spaced apart.

[0050] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make various improvements, modifications, or variations without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered as protected by this application.

Claims

1. A flexible circuit board having a folded structure, characterized by, The first support (1), the second support (2), the limiting plate assembly (3), the first connecting piece (4) and the second connecting piece (5) are arranged on the flexible circuit board (100). The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100). The first connecting piece (4) is arranged on one side of the first support (1) close to the second support (2), and the second connecting piece (5) is arranged on one side of the second support (2) close to the first support (1).

2. The flexible circuit board having a folded structure according to claim 1, wherein, The first connecting piece (4) is arranged on one side of the first support (1) close to the second support (2), and the second connecting piece (5) is arranged on one side of the second support (2) close to the first support (1).

3. The flexible circuit board having a folded structure according to claim 1, wherein, The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100).

4. The flexible circuit board having a folded structure according to claim 3, wherein The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100).

5. The flexible circuit board having a folded structure according to claim 3, wherein The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100).

6. The flexible circuit board having a folded structure according to claim 1, wherein, The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100). The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100). The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100). The first support (1) and the second support (2) are arranged on both sides of the flexible circuit board (100) and are used for supporting and limiting the side walls on both sides of the flexible circuit board (100). 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The flexible circuit board having a folded structure according to claim 6, wherein The buffer plate assembly comprises a buffer plate (7) and a plurality of support rods (6), the first end of each support rod (6) is connected to the side wall of the first support (1) and the second support (2) by bolts respectively, and the second end of each support rod (6) is provided with a second limiting sleeve (10), and the buffer plate (7) is used for being inserted into the second limiting sleeve (10) of the adjacent support rod (6).

8. The flexible circuit board having a folded structure according to claim 7, wherein, The buffer plate (7) is made of elastic material.

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