Flexible printed circuit (FPC) connector capable of preventing cover from being deformed and falling off

Abstract

The utility model discloses a flexible printed circuit (FPC) connector capable of preventing a cover from being deformed and falling, which belongs to the technical field of FPC connectors and comprises a connector base and a connecting terminal inserted on the connector base, a protective cover plate is mounted on the connector base and connected with a cover plate pivot, and the cover plate pivot is connected with the connector base. The cover plate pivot is installed in a containing groove formed in the connecting terminal in a penetrating mode, a flexible flat cable is connected between the protective cover plate and the connector base in an inserted mode, one end, close to the cover plate pivot, of the connecting terminal extends to form a bent portion, and the inner side surface of the protective cover plate is smooth and used for canceling a slug hole and reducing demolding stress. According to the FPC connector capable of preventing the cover from being deformed and falling off, a slug hole is omitted, the problem of stress deformation of the cover caused by too large pulling force is solved when a product is demoulded by a plastic mould, a proper glue feeding point is designed and selected in the earlier stage, and original shrinkage deformation of the product is avoided.

Description

Technical Field

[0001] This utility model relates to the field of FPC connector technology, specifically to an FPC connector that prevents the cap from falling off due to deformation. Background Technology

[0002] As electronic devices continue to evolve towards miniaturization, thinner design, and higher performance, flexible printed circuit boards (FPCs) have become widely used in various electronic products due to their bendability, small size, and light weight. From smartphones and tablets to wearable devices, FPCs play a crucial role in signal transmission and electrical connection. FPC connectors, as the core components enabling reliable connections between FPCs and other electronic components and circuit boards, directly impact the stability and reliability of the entire electronic device system. Existing FPC connectors present the following technical challenges:

[0003] Conventional FPC connectors incorporate a material escape design to prevent excessively thick glue in the cover. While these small escape holes can help prevent shrinkage and deformation of the parts, they fail to consider the increasing size of the product. As the product grows larger, the more densely packed the escape holes become, making it easier for excessive tensile force to cause the cover to deform during demolding.

[0004] Therefore, we propose an FPC connector that prevents the cover from deforming and falling off, in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an FPC connector that prevents deformation and cap loss, in order to solve the problem mentioned in the background art. Currently, conventional FPC connectors on the market use material escape design to prevent the cap from being too thick. Although the material escape holes can help prevent the shrinkage and deformation of the parts, they do not take into account that as the product becomes larger, the more dense the material escape holes become. When the product is demolded from the plastic mold, it is easier for the tensile force to be too great, causing the cap to deform.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an FPC connector with a cover designed to prevent deformation and detachment, comprising a connector base and a connecting terminal inserted into the connector base. A protective cover plate is installed on the connector base, and a cover plate pivot is connected to the protective cover plate. The cover plate pivot is installed through a receiving groove opened on the connecting terminal. A flexible flat cable is inserted between the protective cover plate and the connector base. One end of the connecting terminal near the cover plate pivot extends to form a bent portion. The inner surface of the protective cover plate is smooth to eliminate the escape hole and reduce demolding stress.

[0007] Preferably, the cover plate pivot is rotatable in a receiving groove on the connecting terminal, and multiple connecting terminals are provided on the connector base.

[0008] By adopting the above technical solution and by setting a receiving groove on the connection terminal, it is possible to provide rotation space for the connection terminal.

[0009] Preferably, the inner surface of the bent portion is in contact with the cover plate pivot on the protective cover plate.

[0010] By adopting the above technical solution and by setting the bending part, it is possible to prevent the cover plate pivot on the protective cover plate from detaching.

[0011] Preferably, the connector base has a connecting groove on its side, and the connecting groove is provided with a fastening and clamping component for limiting the position of the protective cover after rotation and closing.

[0012] By adopting the above technical solution, the protective cover can be pressed and fixed by the fastening and clamping components, thus preventing the protective cover from loosening due to vibration after it is closed.

[0013] Preferably, the fastening and clamping component includes a central shaft and an adjusting pressure block mounted on the central shaft, and a limiting bolt is installed in the middle of the central shaft, with a branch pressure strip circumferentially fixed at the upper end of the limiting bolt.

[0014] By adopting the above technical solution, the branch pressure bar can be used to limit and fix the rotating adjustment block.

[0015] Preferably, the adjusting block is rotatable on the central axis.

[0016] By adopting the above technical solution, the pressure block can be rotated to the top of the protective cover by adjusting its rotation.

[0017] Preferably, the middle part of the limiting bolt and the central shaft are threaded, and multiple branch pressure strips are evenly distributed axially at the upper end of the limiting bolt, and the lower surface of the branch pressure strips is set as a rough surface.

[0018] By adopting the above technical solution, the rough surface of the lower surface of the branch pressure bar can be used to improve the contact friction between the branch pressure bar and the adjusting pressure block.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the FPC connector with anti-deformation cap eliminates the escape hole, which reduces the risk of excessive pulling force causing stress deformation of the cap when the product is demolded from the plastic mold, and the selection of a suitable injection point in the early design avoids the original shrinkage deformation of the product.

[0020] 1. It is equipped with a bending part, which provides rotation space for the cover plate pivot through the receiving groove on the connecting terminal. At the same time, the bending part on the connecting terminal can block the cover plate pivot and prevent the risk of the cover plate pivot disengaging during rotation.

[0021] 2. A protective cover plate is provided. The smooth inner surface of the protective cover plate eliminates the escape hole. When the product is demolded from the plastic mold, the problem of stress deformation of the cover due to excessive pulling force is reduced. The appropriate injection point is selected in the early design to avoid the original shrinkage and deformation of the product.

[0022] 3. An adjusting block is provided. After the protective cover is rotated and closed on the connector base, the adjusting block can be used to press the protective cover tightly. At the same time, the position of the adjusting block can be fixed by the setting of the limiting bolt and the branch pressure strip. By adjusting the block to limit the position of the protective cover, the protective cover is prevented from loosening or popping open due to vibration after it is closed. Attached Figure Description

[0023] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the connecting terminal and protective cover of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the connector base and connecting groove structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the protective cover plate of this utility model after it is rotated and closed on the connector base;

[0028] Figure 6 This is a schematic diagram of the limiting bolt and branch pressure strip structure of this utility model.

[0029] In the diagram: 1. Connector base; 2. Connecting terminal; 3. Protective cover; 4. Cover pivot; 5. Flexible flat cable; 6. Receiving groove; 7. Bending part; 8. Connecting groove; 9. Fastening and clamping component; 901. Central shaft; 902. Adjusting block; 903. Limit bolt; 904. Branch pressure strip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: Please refer to Figures 1-6 Conventional FPC connectors employ a material escape design to prevent excessively thick glue lines on the cover. While these escape holes can mitigate component shrinkage and deformation, they fail to account for larger products. As products grow larger, the density of these escape holes increases, making the cover more susceptible to deformation due to excessive tensile force during demolding. To address this issue, this embodiment discloses an FPC connector designed to prevent deformed and detached covers. This connector includes a connector base 1 and connecting terminals 2 inserted into the connector base 1. A protective cover 3 is mounted on the connector base 1. A cover plate pivot 4 is connected to the protective cover plate 3. The cover plate pivot 4 is installed through the receiving groove 6 opened on the connecting terminal 2. A flexible flat cable 5 is inserted between the protective cover plate 3 and the connector base 1. The end of the connecting terminal 2 near the cover plate pivot 4 extends to form a bent part 7. The inner surface of the protective cover plate 3 is smooth to eliminate the escape hole and reduce the demolding stress. The cover plate pivot 4 can rotate in the receiving groove 6 on the connecting terminal 2. Multiple connecting terminals 2 are provided on the connector base 1. The inner surface of the bent part 7 is in contact with the cover plate pivot 4 on the protective cover plate 3.

[0032] Insert the flexible flat cable 5 between the protective cover plate 3 and the connector base 1, then rotate and close the protective cover plate 3. The closing of the protective cover plate 3 can press the flexible flat cable 5 tightly. Because the connecting terminal 2 is provided with a bending part 7, the bending part 7 blocks the cover plate pivot 4 on the protective cover plate 3, preventing the risk of the cover plate pivot 4 from disengaging. At the same time, the inner surface of the protective cover plate 3 is smooth, eliminating the escape hole. When the product is demolded from the plastic mold, the problem of excessive pulling force causing stress deformation of the cover is reduced. In the early design, a suitable injection point is selected to avoid the original shrinkage deformation of the product.

[0033] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. The technical content disclosed in this example is as follows: A connecting groove 8 is provided on the side of the connector base 1, and a fastening and pressing component 9 is provided inside the connecting groove 8 for limiting the position of the protective cover plate 3 after rotation and closing. The fastening and pressing component 9 includes a central shaft 901 and an adjusting block 902 installed on the central shaft 901. A limiting bolt 903 is installed in the middle of the central shaft 901. A branch pressure strip 904 is circumferentially fixed at the upper end of the limiting bolt 903. The adjusting block 902 can rotate on the central shaft 901. The middle part of the limiting bolt 903 and the central shaft 901 is threaded. A plurality of branch pressure strips 904 are evenly distributed axially at the upper end of the limiting bolt 903. The lower surface of the branch pressure strip 904 is set as a rough surface.

[0034] After the protective cover 3 is rotated on the connector base 1 to position the flexible flat cable 5, the adjusting block 902 is rotated on the central shaft 901 so that the farthest end of the adjusting block 902 is rotated above the protective cover 3. After the adjusting block 902 is rotated, the limiting bolt 903 on the central shaft 901 is rotated. After the limiting bolt 903 is rotated, the branch pressure strip 904 on its side can come into contact with the adjusting block 902. The branch pressure strip 904 is used to fix the adjusting block 902. By rotating the adjusting block 902 above the protective cover 3, the protective cover 3 after being covered can be positioned to prevent loosening or popping open due to vibration or other factors of the protective cover 3.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An FPC connector with a cover designed to prevent deformation and detachment, comprising a connector base (1) and a connecting terminal (2) inserted into the connector base (1), wherein a protective cover (3) is mounted on the connector base (1), and a cover pivot (4) is connected to the protective cover (3), the cover pivot (4) being inserted through a receiving groove (6) opened on the connecting terminal (2), and a flexible flat cable (5) is inserted between the protective cover (3) and the connector base (1), characterized in that: The connecting terminal (2) extends to form a bent portion (7) near the end of the cover plate pivot (4). The inner surface of the protective cover plate (3) is smooth to eliminate the escape hole and reduce demolding stress.

2. The FPC connector with anti-deformation cap loss according to claim 1, characterized in that: The cover pivot (4) is rotatable in the receiving groove (6) on the connecting terminal (2), and the connecting terminal (2) is provided with a plurality of such terminals on the connector base (1).

3. The FPC connector with anti-deformation cap loss according to claim 1, characterized in that: The inner surface of the bent portion (7) is in contact with the cover plate pivot (4) on the protective cover plate (3).

4. The FPC connector with anti-deformation cap loss according to claim 1, characterized in that: The connector base (1) has a connecting groove (8) on its side, and the connecting groove (8) is provided with a fastening and pressing component (9) for limiting the protective cover (3) after rotation and closing.

5. The FPC connector with anti-deformation cap loss according to claim 4, characterized in that: The fastening and clamping component (9) includes a central shaft (901) and an adjusting block (902) mounted on the central shaft (901). A limiting bolt (903) is installed in the middle of the central shaft (901), and a branch pressure strip (904) is circumferentially fixed at the upper end of the limiting bolt (903).

6. The FPC connector with anti-deformation cap detachment according to claim 5, characterized in that: The adjusting block (902) is rotatable on the central shaft (901).

7. The FPC connector with anti-deformation cap loss according to claim 5, characterized in that: The middle part of the limiting bolt (903) and the central shaft (901) are threaded, and multiple branch pressure strips (904) are evenly distributed axially at the upper end of the limiting bolt (903), and the lower surface of the branch pressure strips (904) is set as a rough surface.

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