Connector-free FPC (Flexible Printed Circuit) direct connection structure

Abstract

The embodiment of the utility model belongs to the technical field of FPC and PCB connection. The utility model also relates to a connector-free FPC direct connection structure, which comprises a PCB main body, one side of the PCB main body is provided with an FPC insertion port, a plurality of terminal parts are arranged between the PCB main body and the FPC insertion port, the FPC main body is inserted between the FPC insertion port and the terminal parts, and the terminals are used for realizing the connection between the PCB main body and the FPC main body. According to the PCB, the FPC insertion port is formed in one side of the PCB main body, the terminal part is arranged in the FPC insertion port, the FPC main body can be directly connected with the terminal part after being inserted into the FPC insertion port, a connector does not need to be used as a medium, so that the manufacturing cost is remarkably reduced, and meanwhile, due to the fact that the alignment and fixing steps of the connector are omitted, the production efficiency is improved. The structure also improves the assembly efficiency, reduces the cost, and facilitates the realization of automatic assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting an FPC and a PCB, and more specifically to a connector-free FPC direct connection structure. Background Art

[0002] In the manufacturing and assembly process of modern electronic devices, the connection between FPC (flexible printed circuit board) and PCB (printed circuit board) is a crucial step. FPC has been widely used in electronic devices, especially those that require bending or folding design (such as cover display screens, wearable devices, etc.) due to its flexible, thin and foldable characteristics. However, the traditional way of connecting FPC and PCB usually relies on connectors as intermediaries, which has several obvious limitations in the manufacturing and assembly process;

[0003] First, the use of connectors as intermediaries to connect FPC and PCB significantly increases the manufacturing cost. The connectors themselves require material costs and processing costs. These costs will have a significant impact on the overall manufacturing cost when accumulated during mass production. Secondly, the use of connectors increases the complexity of assembly. During the assembly process, the connectors need to be precisely aligned and fixed, which requires operators to have high skills and experience. The alignment and fixing steps not only increase the assembly time, but also reduce the efficiency of assembly. In addition, the introduction of connectors may also increase the overall volume and weight of electronic equipment, which is not conducive to achieving the thinness and portability of the equipment. Therefore, we have made improvements to this and proposed a connector-free FPC direct connection structure.

[0004] For example, a Chinese patent (publication number CN219421161U) discloses a new type of FPC and connector, and its specification discloses: A new type of FPC, including an FPC body, at least one end of the FPC body is provided with a reinforcing plate, the side of the reinforcing plate is provided with a first barb, and the first barb is inclined in the direction close to the FPC body. As a preferred embodiment of the new FPC provided by the utility model, the end of the FPC body is provided with a connecting side, both ends of the connecting side are provided with a limiting side, the connecting side and the limiting side form a connecting part concave into the FPC body, and the end of the reinforcing plate close to the first barb is provided with an outer convex structure cooperating with the connecting part. As a preferred embodiment of the new FPC provided by the utility model, the first barb is provided with two groups, and the two groups of first barbs are symmetrically arranged on both sides of the reinforcing plate. A connector is used to install a new type of FPC, wherein the end of the FPC body is connected to a reinforcing plate, and the side of the reinforcing plate is provided with a first barb, comprising a base, a guide portion is provided at the connection between the base and the FPC body, and the first barb cooperates with the guide portion; a connecting terminal, one end of which extends into the base and the other end extends to the outside of the base, wherein the connecting terminal is provided with multiple groups of valley-peak contacts. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present utility model is that the connection method between FPC and PCB usually relies on a connector as an intermediary, which has multiple obvious limitations in the manufacturing and assembly process.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A connector-free FPC direct connection structure comprises: a PCB board body, an FPC insertion port is opened on one side of the PCB board body, a plurality of terminal parts are arranged between the PCB board body and the FPC insertion port, and the FPC body is plugged between the FPC insertion port and the terminal parts, and the terminals are used to realize the connection between the PCB board body and the FPC body.

[0008] As an improved manner of the present invention, the terminal portion includes a PCB terminal, and the PCB terminal is connected to the PCB board body.

[0009] As an improved manner of the present invention, at least two hook-shaped terminal arms are arranged at the bottom of the PCB terminal, and the bottom of each of the hook-shaped terminal arms has a contact point.

[0010] As an improved manner of the utility model, a plurality of FPC gold fingers are arranged on the top of the FPC body, and the FPC gold fingers are in contact with the contact points on the hook-shaped terminal arms.

[0011] As an improved manner of the utility model, a side of the FPC body away from the FPC gold finger is fixedly connected with an FPC reinforcing plate, and the FPC reinforcing plate is used for reinforcing the FPC body.

[0012] As an improvement of the utility model, a first limiting hole and a second limiting hole are provided on the FPC reinforcing plate and the PCB board body, a first hook-type cantilever buckle is provided in the first limiting hole, and a second hook-type cantilever buckle is provided in the second limiting hole.

[0013] As an improved manner of the utility model, the first hook-type cantilever buckle and the second hook-type cantilever buckle are used to cooperate with the first limiting hole and the second limiting hole to achieve the limiting of the FPC reinforcing plate.

[0014] As an improvement of the utility model, the first hook-type cantilever buckle includes a first limiting protrusion, the first limiting protrusion is connected to two first cantilevers, one end of the first cantilever away from the first limiting protrusion is fixedly connected to the first buckle, and the first cantilever is inserted into the first limiting hole.

[0015] As an improvement of the utility model, the second hook-type cantilever buckle includes a second limiting protrusion, the second limiting protrusion is connected to two second cantilevers, the end of the second cantilever away from the second limiting protrusion is fixedly connected to the second buckle, and the second cantilever is inserted into the second limiting hole.

[0016] As an improved manner of the utility model, the first limiting protrusion and the first buckle are respectively located on both sides of the PCB board body, and the second limiting protrusion and the second buckle are respectively located on both sides of the PCB board body.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem that the FPC and PCB connection method in the prior art usually relies on a connector as an intermediary, and this method has multiple obvious limitations in the manufacturing and assembly processes, the present application opens an FPC insertion port on one side of the PCB board body and sets a terminal part in the FPC insertion port. After the FPC body is inserted into the FPC insertion port, it can be directly connected to the terminal part without using a connector as an intermediary, thereby significantly reducing the manufacturing cost. At the same time, since the alignment and fixing steps of the connector are omitted, the structure also improves the assembly efficiency, reduces the cost, and is conducive to realizing automated assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the connector-free FPC direct connection structure provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the first limiting hole and the second limiting hole of the connector-free FPC direct connection structure provided in the present application;

[0021] Figure 3 A schematic diagram of the structure of the PCB terminal of the connector-free FPC direct connection structure provided in this application;

[0022] Figure 4 A schematic diagram of the structure of the FPC gold finger of the connector-free FPC direct connection structure provided in this application;

[0023] Figure 5 A schematic diagram of the structure of a first hook-type cantilever buckle of the connector-free FPC direct connection structure provided in the present application;

[0024] Figure 6 This is a schematic structural diagram of the second hook-type cantilever buckle of the connector-free FPC direct connection structure provided in the present application.

[0025] Indicated in the figure:

[0026] 1. PCB board body; 101. PCB terminal; 102. hook-shaped terminal arm; 2. FPC insertion port; 3. FPC body; 301. FPC gold finger; 302. FPC reinforcement plate; 4. First limiting hole; 5. Second limiting hole; 6. First hook-type cantilever buckle; 601. First limiting protrusion; 602. First cantilever; 603. First buckle; 7. Second hook-type cantilever buckle; 701. Second limiting protrusion; 702. Second cantilever; 703. Second buckle. DETAILED DESCRIPTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] As described in the background technology, the traditional FPC and PCB connection method usually relies on connectors as intermediaries, which have several obvious limitations in the manufacturing and assembly process. First, the use of connectors as intermediaries to connect FPC and PCB significantly increases the manufacturing cost. The connectors themselves require material costs and processing costs. These costs will have a significant impact on the overall manufacturing cost when accumulated during mass production. Second, the use of connectors increases the complexity of assembly. During the assembly process, the connectors need to be precisely aligned and fixed, which requires operators to have high skills and experience. The alignment and fixing steps not only increase the assembly time, but also reduce the efficiency of assembly. In addition, the introduction of connectors may also increase the overall volume and weight of electronic equipment, which is not conducive to achieving the thinness and portability of the equipment.

[0029] In order to solve this technical problem, the utility model provides a connector-free FPC direct connection structure.

[0030] Specifically, please refer to Figure 1-Figure 4 , the connector-free FPC direct connection structure specifically includes:

[0031] A PCB board body 1 is provided with an FPC insertion port 2 on one side of the PCB board body 1, a plurality of terminal parts are provided between the PCB board body 1 and the FPC insertion port 2, and an FPC body 3 is plugged between the FPC insertion port 2 and the terminal part, and the terminal is used to realize the connection between the PCB board body 1 and the FPC body 3.

[0032] The connector-free FPC direct connection structure provided by the utility model is that the FPC insertion port 2 is opened on one side of the PCB board body 1 and the terminal part is arranged in the FPC insertion port 2. After the FPC body 3 is inserted into the FPC insertion port 2, it can be directly connected to the terminal part without using a connector as an intermediary, thereby significantly reducing the manufacturing cost. At the same time, since the alignment and fixing steps of the connector are omitted, the structure also improves the assembly efficiency, reduces the cost, and is conducive to realizing automated assembly.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] Embodiment 1 of the FPC direct connection structure without connector of the utility model

[0037] Please refer to Figure 1-Figure 4 The connector-free FPC direct connection structure of the utility model includes: a PCB board body 1, an FPC insertion port 2 is opened on one side of the PCB board body 1, a plurality of terminal parts are arranged between the PCB board body 1 and the FPC insertion port 2, and an FPC body 3 is plugged between the FPC insertion port 2 and the terminal part, and the terminal is used to realize the connection between the PCB board body 1 and the FPC body 3. The present application opens an FPC insertion port 2 on one side of the PCB board body 1 and sets a terminal part in the FPC insertion port 2. After the FPC body 3 is inserted into the FPC insertion port 2, it can be directly connected to the terminal part without using a connector as an intermediary, thereby significantly reducing the manufacturing cost. At the same time, since the alignment and fixing steps of the connector are omitted, the structure also improves the assembly efficiency, reduces the cost, and is conducive to realizing automated assembly. The opening of the FPC insertion port 2 is chamfered to facilitate the insertion of the FPC body 3.

[0038] Further, such as Figure 3-Figure 4 As shown, the terminal portion includes a PCB terminal 101 , and the PCB terminal 101 is connected to the PCB board body 1 .

[0039] Further, such as Figure 3-Figure 4As shown, at least two hook-shaped terminal arms 102 are provided at the bottom of the PCB terminal 101. The bottom of each hook-shaped terminal arm 102 has a contact point. The two-point contact point design can prevent the failure of one contact point from causing conduction failure. Together with the hook-shaped rebound design of the hook-shaped terminal arm 102, the stability and reliability of the connection are ensured, and the service life is extended.

[0040] Further, such as Figure 4 As shown, a plurality of FPC gold fingers 301 are arranged on the top of the FPC body 3, and the FPC gold fingers 301 are in contact with the contacts on the hook-shaped terminal arm 102. The hook shape of the hook-shaped terminal arm 102 can enhance the contact tightness with the FPC gold fingers 301, reduce metal fatigue, and extend the service life.

[0041] Further, such as Figure 4 As shown, a FPC reinforcing plate 302 is fixedly connected to one side of the FPC body 3 away from the FPC gold finger 301 . The FPC reinforcing plate 302 is used to reinforce the FPC body 3 . The width of the FPC reinforcing plate 302 is greater than the width of the FPC body 3 .

[0042] Further, such as Figure 4 As shown, the FPC reinforcing plate 302 and the PCB board body 1 are both provided with a first limiting hole 4 and a second limiting hole 5, the first limiting hole 4 is provided with a first hook-type cantilever buckle 6, the second limiting hole 5 is provided with a second hook-type cantilever buckle 7, the second limiting hole 5 is triangular, and the first limiting hole 4 is circular, so that it is convenient to prevent mistakes when inserting the FPC reinforcing plate 302, so as to ensure the correctness of the FPC body 3 after insertion.

[0043] Furthermore, the first hook-type cantilever buckle 6 and the second hook-type cantilever buckle 7 are used to cooperate with the first limiting hole 4 and the second limiting hole 5 to achieve the limitation of the FPC reinforcement plate 302. Through the design of the FPC reinforcement plate 302, the first hook-type cantilever buckle 6 and the second hook-type cantilever buckle 7, a stable connection between the FPC body 3 and the FPC insertion port 2 is achieved, and the assembly and replacement of the FPC body 3 are convenient and quick, which has strong practicality and promotion value.

[0044] Further, such as Figure 1 and Figure 5 As shown, the first hook-type cantilever buckle 6 includes a first limiting protrusion 601, and the first limiting protrusion 601 is connected to two first cantilevers 602. The end of the first cantilever 602 away from the first limiting protrusion 601 is fixedly connected to the first buckle 603, and the first cantilever 602 is inserted into the first limiting hole 4. The FPC reinforcement plate 302 can be limited by the insertion of the first cantilever 602 and the first limiting hole 4, and then the FPC body 3 can be limited. The end of the first buckle 603 away from the first limiting protrusion 601 is provided with an arc surface to facilitate the first buckle 603 to be inserted into the first limiting hole 4.

[0045] Further, such as Figure 1 and Figure 6 As shown, the second hook-type cantilever buckle 7 includes a second limiting protrusion 701, and the second limiting protrusion 701 is connected to two second cantilevers 702. The end of the second cantilever 702 away from the second limiting protrusion 701 is fixedly connected to the second buckle 703, and the second cantilever 702 is inserted into the second limiting hole 5. The FPC reinforcement plate 302 can be limited by the insertion of the second cantilever 702 and the second limiting hole 5, and then the FPC body 3 can be limited. The end of the second buckle 703 away from the second limiting protrusion 701 is provided with an arc surface to facilitate the second buckle 703 to be inserted into the second limiting hole 5.

[0046] Furthermore, the first limiting protrusion 601 and the first buckle 603 are respectively located on two sides of the PCB board body 1 , and the second limiting protrusion 701 and the second buckle 703 are respectively located on two sides of the PCB board body 1 .

[0047] Embodiment 2 of the FPC direct connection structure without connector of the utility model

[0048] The connector-free FPC direct connection structure of the utility model further has the advantages of:

[0049] When in use, the FPC reinforcing plate 302 and the FPC body 3 are inserted into the FPC insertion port 2, so that the FPC gold finger 301 contacts the contacts on the two hook-shaped terminal arms 102, and then the first clip 603 is inserted into the first limiting hole 4. During the process of inserting the first clip 603 into the first limiting hole 4, the first cantilever 602 is squeezed by the first limiting hole 4 to shrink. When the first clip 603 passes through the first limiting hole 4 and reaches the bottom of the PCB board body 1, the first cantilever 602 is reset and limited by the first clip 603 and the first limiting protrusion 601 to fix the FPC reinforcing plate 302. The second clip 703 is inserted into the second limiting hole 5. The second clip 703 During the insertion process of the second limiting hole 5, the second cantilever 702 is squeezed by the second limiting hole 5, and when the second buckle 703 passes through the second limiting hole 5 and reaches the bottom of the PCB board body 1, the second cantilever 702 is reset and is limited by the second buckle 703 and the second limiting protrusion 701 to fix the FPC reinforcement plate 302. When disassembling, manually pinch the two first buckles 603 and then pull the first limiting protrusion 601 to pull the first hook-type cantilever buckle 6 out of the first limiting hole 4. The disassembly of the second hook-type cantilever buckle 7 is similar. Finally, pull the FPC reinforcement plate 302 to separate the FPC reinforcement plate 302 from the FPC insertion port 2 to achieve the disassembly of the FPC body 3.

[0050] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A connector-free FPC direct connection structure, characterized in that: include: A PCB board body (1), wherein an FPC insertion port (2) is provided on one side of the PCB board body (1), a plurality of terminal portions are provided between the PCB board body (1) and the FPC insertion port (2), and an FPC body (3) is plugged between the FPC insertion port (2) and the terminal portion, wherein the terminals are used to realize the connection between the PCB board body (1) and the FPC body (3).

2. The connector-free FPC direct connection structure according to claim 1, characterized in that: The terminal portion comprises a PCB terminal (101), and the PCB terminal (101) is connected to the PCB board body (1).

3. The connector-free FPC direct connection structure according to claim 2, characterized in that: At least two hook-shaped terminal arms (102) are arranged at the bottom of the PCB terminal (101), and each hook-shaped terminal arm (102) has a contact point at the bottom.

4. The connector-free FPC direct connection structure according to claim 3, characterized in that: A plurality of FPC gold fingers (301) are arranged on the top of the FPC body (3), and the FPC gold fingers (301) are in contact with the contact points on the hook-shaped terminal arms (102).

5. The connector-free FPC direct connection structure according to claim 4, characterized in that: An FPC reinforcing plate (302) is fixedly connected to a side of the FPC body (3) away from the FPC gold finger (301), and the FPC reinforcing plate (302) is used to reinforce the FPC body (3).

6. The connector-free FPC direct connection structure according to claim 5, characterized in that: The FPC reinforcing plate (302) and the PCB board body (1) are both provided with a first limiting hole (4) and a second limiting hole (5); a first hook-shaped cantilever buckle (6) is provided in the first limiting hole (4), and a second hook-shaped cantilever buckle (7) is provided in the second limiting hole (5).

7. The connector-free FPC direct connection structure according to claim 6, characterized in that: The first hook-shaped cantilever buckle (6) and the second hook-shaped cantilever buckle (7) are used to cooperate with the first limiting hole (4) and the second limiting hole (5) to achieve limiting of the FPC reinforcing plate (302).

8. The connector-free FPC direct connection structure according to claim 7, characterized in that: The first hook-shaped cantilever buckle (6) comprises a first limiting protrusion (601), the first limiting protrusion (601) is connected to two first cantilevers (602), one end of the first cantilever (602) away from the first limiting protrusion (601) is fixedly connected to a first buckle (603), and the first cantilever (602) is inserted into the first limiting hole (4).

9. The connector-free FPC direct connection structure according to claim 8, characterized in that: The second hook-shaped cantilever buckle (7) comprises a second limiting protrusion (701), the second limiting protrusion (701) is connected to two second cantilevers (702), one end of the second cantilever (702) away from the second limiting protrusion (701) is fixedly connected to a second buckle (703), and the second cantilever (702) is inserted into the second limiting hole (5).

10. The connector-free FPC direct connection structure according to claim 9, characterized in that: The first limiting protrusion (601) and the first buckle (603) are respectively located on two sides of the PCB board body (1), and the second limiting protrusion (701) and the second buckle (703) are respectively located on two sides of the PCB board body (1).

Images