An FPC connector with a self-locking and anti-detachment cover

Abstract

The present invention discloses an FPC connector with self-locking and anti-disengagement cover, belonging to the technical field of FPC connectors. The present invention includes a support base and connection terminals inserted on the support base. A protective cover plate is arranged on the support base, and an adjusting rotating shaft fixed on the protective cover plate is inserted into the connection terminals. Plugging guide posts are fixed on the left and right sides of the support base, and a first magnetic block is connected to one end of the plugging guide post facing the center of the support base. A limiting collar is arranged on the side of the protective cover plate, and a second magnetic block is installed inside the limiting collar. The protective cover plate is interconnected with the protective cover plate through a first metal elastic sheet. For the FPC connector with self-locking and anti-disengagement cover, through the setting of the plugging guide posts, after the protective cover plate rotates and closes, the limiting collar is inserted onto the plugging guide posts by magnetic force to achieve automatic locking of the protective cover plate, preventing the protective cover plate from automatically rebounding due to the subsequent pulling force of the flexible cable.

Description

Technical Field

[0001] The present invention relates to the technical field of FPC connectors, and particularly to an FPC connector with self-locking and anti-disengaging cover. Background Art

[0002] An FPC connector is an electronic connector made of flexible materials. It can connect various types of electronic components together to achieve various control and automation applications. The FPC connector has a compact design and a light weight, and is very suitable for electronic products with high requirements for miniaturization and light weight.

[0003] For example, a Chinese patent with the publication number: CN209045827U, the patent name: Flip-type FPC Connector with Firm Clamping, and the publication date: June 28, 2019, includes an insulating base, conductive terminals installed in the insulating base, and a cover plate pivotally connected to the insulating base; the conductive terminals include a substrate, and a first abutting foot and a second abutting foot connected to one side of the substrate; a first ratchet is connected to the end of the second abutting foot away from the substrate; the cover plate includes a main board body, and a rotating part connected to the side of the main board body facing the insulating base; a plurality of receiving holes are spaced apart on the side of the rotating part away from the insulating base, and the receiving holes correspond to the first ratchet.

[0004] For example, a Chinese patent with the publication number: CN220209500U, the patent name: An FPC Connector, and the publication date: December 19, 2023, includes: an FPC connector body provided with connection terminals, and a flip cover is provided at the position of the FPC connector body corresponding to the connection terminals; a first plug is elastically arranged on the side wall of the flip cover, and a first fixing groove is opened at the position of the FPC connector body corresponding to the first plug; a second plug is elastically inserted into the flip cover, and the other end of the second plug is rotatably inserted into the inside of the FPC connector body. The following technical problems exist in the above-mentioned prior art:

[0005] When the existing connector is in use, in order to improve the fixing effect on the flexible cable, a plurality of receiving holes are arranged on the flip cover, so that the wiring terminal jacks up the flexible cable and enters into the inside of the receiving holes. Although the overall positioning strength of the flexible cable can be improved, after the flexible cable is stressed, the flip cover is prone to loosen and rebound due to the pulling effect. When the flip cover becomes loose, the flexible cable cannot be stably limited.

[0006] Therefore, we propose an FPC connector with self-locking and anti-disengaging cover to solve the problems mentioned above. Summary of the Invention

[0007] The object of the present invention is to provide an FPC connector with self-locking anti-disengagement cover, so as to solve the problem proposed in the above background technology that in order to improve the fixing effect on the flexible cable in the existing connectors on the market, multiple receiving holes are provided on the flip cover, and then the wiring terminals are used to lift the flexible cable and enter the inside of the receiving holes. Although the overall positioning strength of the flexible cable can be improved, after the flexible cable is stressed, the flip cover is prone to loosen and rebound due to the pulling effect. When the flip cover becomes loose, the flexible cable cannot be stably limited.

[0008] To achieve the above object, the present invention provides the following technical solution: an FPC connector with self-locking anti-disengagement cover, including a support base and connection terminals inserted on the support base. A protective cover plate is provided on the support base, and the adjusting rotating shaft fixed on the protective cover plate is inserted into the connection terminals. Plugging guide posts are fixed on both left and right sides of the support base, and a first magnetic block is connected to one end of the plugging guide post facing the center of the support base. A limiting collar is provided on the side of the protective cover plate, and a second magnetic block is installed inside the limiting collar. The limiting collar is connected to the protective cover plate through a first metal elastic sheet, and the inner surface of the protective cover plate is a smooth plane. A boosting pressure-applying component for positioning the FPC is installed on the limiting collar. The first magnetic block at the end of the plugging guide post is used to generate magnetic attraction on the second magnetic block inside the limiting collar on the side of the protective cover plate after rotation and closing.

[0009] Preferably, one end of the connection terminal close to the adjusting rotating shaft extends outward to form a bent portion, and the adjusting rotating shaft is located inside the bent portion. The lower end of the connection terminal bulges outward to form an abutting portion for supporting the FPC.

[0010] By adopting the above technical solution, the bent portion can provide a rotating space for the adjusting rotating shaft on the protective cover plate.

[0011] Preferably, the magnetic property of the first magnetic block at the end of the plugging guide post is opposite to that of the second magnetic block inside the limiting collar, and the side of the limiting collar facing the plugging guide post is provided with an open structure.

[0012] By adopting the above technical solution, the first magnetic block at the end of the plugging guide post can generate magnetic attraction on the second magnetic block fixed inside the limiting collar, so that the second magnetic block drives the limiting collar to move synchronously.

[0013] Preferably, the port of the limiting collar is flush with the side of the protective cover plate in the initial state, and the inner wall of the limiting collar fits with the outer wall of the plugging guide post.

[0014] By adopting the above technical solution, when the limiting collar moves under the action of magnetic force, the limiting collar can be inserted onto the plugging guide post to further limit the protective cover plate.

[0015] Preferably, the boosting and pressing component includes a moving column fixed on the limiting collar, and a clamping column is arranged inside the moving column. The middle part of the clamping column is fixed on the protective cover plate, and a pressing cross bar is arranged on the side of the clamping column. The pressing cross bar passes through a power slot formed on the moving column, and one end of the pressing cross bar extending into the clamping column is connected to the clamping column through a second metal elastic sheet.

[0016] By adopting the above technical solution, since the moving column is fixed on the limiting collar, when the limiting collar is affected by magnetic force, the moving column on the side can be driven to move synchronously.

[0017] Preferably, the moving column and the protective cover plate are in sliding connection, the inside of the moving column is of a hollow structure, and the power slots on the moving column correspond to the pressing cross bars one by one.

[0018] By adopting the above technical solution, due to the hollow structure inside the moving column, it is convenient for the moving column to move outside the clamping column.

[0019] Preferably, a plurality of pressing cross bars are evenly distributed on the clamping column, and each pressing cross bar is located between adjacent connection terminals.

[0020] By adopting the above technical solution, after the protective cover plate rotates and closes, the flexible cable can be pressed tightly through the movement of the pressing cross bars, so that the flexible cable in the area between adjacent connection terminals is sunken downward, improving the positioning stability of the flexible cable.

[0021] Preferably, one end of the pressing cross bar in contact with the flexible cable is set as a flexible end, the pressing cross bar and the clamping column are in sliding connection, and each pressing cross bar is connected to the clamping column through a second metal elastic sheet.

[0022] By adopting the above technical solution, when the flexible cable is pressed tightly through the flexible end of the pressing cross bar, an elastic buffering effect is achieved, avoiding damage to the flexible cable caused by excessive pressure. At the same time, the arrangement of the second metal elastic sheet enables the pressing cross bar to reset and rebound after moving on the clamping column.

[0023] Preferably, the middle part of the pressing cross bar is spherical, and two-thirds of the spherical section in the middle of the pressing cross bar is located in the power slot formed on the side of the moving column.

[0024] By adopting the above technical solution, when the moving column moves, the arc surface of the spherical section in the middle of the pressing cross bar can be extruded by the edge of the power slot, so that the pressing cross bar moves towards the direction of the flexible cable.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: For the FPC connector with a self-locking anti-disengagement cover, through the setting of the insertion guide posts, after the protective cover plate rotates and closes, the magnetic force is used to make its limit collar insert onto the insertion guide posts, realizing the automatic locking of the protective cover plate, and preventing the subsequent pulling force on the flexible cable from causing the protective cover plate to automatically rebound;

[0026] 1. A bending portion is provided. By setting the bending portion on the connection terminal, the rotation space of the adjustment rotating shaft on the protective cover plate can be provided, preventing the adjustment rotating shaft from rotating out of position. At the same time, the flexible cable can be abutted by the abutting portion on the connection terminal, so that the flexible cable is stably limited between the protective cover plate and the connection terminal;

[0027] 2. Insertion guide posts are provided. When the protective cover plate rotates and closes, the limit collar on the side of the protective cover plate is aligned with the insertion guide posts. Through the magnetic attraction between the first magnetic block and the second magnetic block, the limit collar can be moved towards the direction of the insertion guide posts and inserted into the insertion guide posts. Through the mutual insertion of the limit collar and the insertion guide posts, the automatic locking of the protective cover plate after closing is realized, avoiding the phenomenon that the protective cover plate rebounds after the flexible cable is pulled;

[0028] 3. A pressing cross bar is provided. After the limit collar moves, the moving column can move synchronously. Through the movement of the moving column, the edge of the power slot can be used to squeeze the spherical arc surface in the middle of the pressing cross bar, so that the pressing cross bar moves towards the direction of the flexible cable. Through the movement of the pressing cross bar, the flexible cable can be further pressed. By using the flexible end at the end of the pressing cross bar, a pressing buffer effect can be achieved on the flexible cable, avoiding damage to the flexible cable caused by excessive downward pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a front three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 is a structural schematic diagram after the protective cover plate of the present invention is opened;

[0031] Figure 3 is the present invention Figure 2 is an enlarged structural schematic diagram at A in the present invention;

[0032] Figure 4 is a structural schematic diagram of the connection terminal and the bending portion of the present invention;

[0033] Figure 5 is a structural schematic diagram of the protective cover plate and the adjustment rotating shaft of the present invention;

[0034] Figure 6 is a structural schematic diagram of the protective cover plate and the limit collar of the present invention;

[0035] Figure 7 For the present invention Figure 6 Schematic enlarged view of part B in the present invention;

[0036] Figure 8 Schematic view of the pressure application cross bar and the power card slot structure of the present invention;

[0037] Figure 9 Schematic view of the pressure application cross bar and the second metal elastic sheet of the present invention.

[0038] In the figure: 1, support base; 2, connection terminal; 3, protective cover plate; 4, adjusting rotating shaft; 5, bending part; 6, abutting part; 7, inserting guide post; 8, first magnet; 9, limiting collar; 10, second magnet; 11, first metal elastic sheet; 12, assisting pressure application component; 121, moving column; 122, clamping column; 123, pressure application cross bar; 124, power card slot; 125, second metal elastic sheet. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1: Please refer to Figures 1-9, in order to improve the fixing effect on the flexible cable when the existing connector is in use, multiple accommodation holes are provided on the flip cover, so that the wiring terminal jacks up the flexible cable and enters the inside of the accommodation hole. Although the overall positioning strength of the flexible cable can be improved, after the flexible cable is stressed, the flip cover is likely to loosen and rebound due to the pulling effect. When the flip cover becomes loose, the flexible cable cannot be stably limited. To solve this technical problem, the following technical content is disclosed in this embodiment. An FPC connector with a self-locking anti-detaching cover includes a support base 1 and a connection terminal 2 inserted on the support base 1. A protective cover plate 3 is provided on the support base 1, and an adjusting rotating shaft 4 fixed on the protective cover plate 3 is inserted into the connection terminal 2. Plugging guide posts 7 are fixed on the left and right sides of the support base 1, and a first magnetic block 8 is connected to the end of the plugging guide post 7 facing the center of the support base 1. A limiting collar 9 is provided on the side of the protective cover plate 3, and a second magnetic block 10 is installed inside the limiting collar 9. The limiting collar 9 is connected to the protective cover plate 3 through a first metal elastic sheet 11, and the inner surface of the protective cover plate 3 is a smooth plane. A boosting pressure-applying component 12 for positioning the FPC is installed on the limiting collar 9. The first magnetic block 8 at the end of the plugging guide post 7 generates a magnetic attraction force on the second magnetic block 10 inside the limiting collar 9 on the side of the protective cover plate 3 after rotation and closure. One end of the connection terminal 2 close to the adjusting rotating shaft 4 extends outward to form a bent portion 5, and the adjusting rotating shaft 4 is located inside the bent portion 5. The lower end of the connection terminal 2 bulges outward to form an abutting portion 6 for supporting the FPC. The magnetism of the first magnetic block 8 at the end of the plugging guide post 7 is opposite to the magnetism of the second magnetic block 10 inside the limiting collar 9, and the side of the limiting collar 9 facing the plugging guide post 7 is provided with an open structure. The port of the limiting collar 9 is flush with the side of the protective cover plate 3 in the initial state, and the inner wall of the limiting collar 9 is in contact with the outer wall of the plugging guide post 7.

[0041] When the FPC connector needs to be used, insert the flexible cable between the support base 1 and the protective cover plate 3. The bottom of the flexible cable overlaps on the connection terminal 2. Then rotate and close the protective cover plate 3. After the protective cover plate 3 rotates, its adjustment rotating shaft 4 rotates in the bending part 5 on the connection terminal 2. The bending part 5 provides a rotating space for the adjustment rotating shaft 4 to prevent the adjustment rotating shaft 4 from being displaced. After the protective cover plate 3 is closed, it can press the flexible cable. After the protective cover plate 3 rotates and closes, the limiting collar 9 on its side and the insertion guide post 7 on the support base 1 are aligned with each other. At this time, the first magnetic block 8 on the insertion guide post 7 generates a magnetic attraction force on the second magnetic block 10 on the limiting collar 9. At this time, the limiting collar 9 moves towards the direction of the insertion guide post 7, so that the limiting collar 9 and the insertion guide post 7 are inserted into each other. Through the insertion of the limiting collar 9 and the insertion guide post 7, the automatically locking of the rotated protective cover plate 3 is realized, preventing the protective cover plate 3 from loosening after the subsequent flexible printed circuit board is pulled and stressed. And after the limiting collar 9 moves, it can make the first metal elastic sheet 11 deformed. When the protective cover plate 3 is opened subsequently, push the limiting collar 9 towards the direction close to the protective cover plate 3 with your hand, so that the limiting collar 9 and the insertion guide post 7 are separated from each other. At this time, the limiting collar 9 resets under the action of the first metal elastic sheet 11, so that it is convenient to open the protective cover plate 3 subsequently.

[0042] Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Embodiment 1. The following technical content is disclosed in this embodiment. The assisting pressure-applying component 12 includes a moving column 121 fixed on the limiting collar 9. And a clamping column 122 is arranged inside the moving column 121. The middle part of the clamping column 122 is fixed on the protective cover plate 3. And a pressure-applying cross bar 123 is arranged on the side of the clamping column 122. The pressure-applying cross bar 123 passes through the power card slot 124 opened on the moving column 121. And one end of the pressure-applying cross bar 123 extending into the inside of the clamping column 122 is connected with the clamping column 122 through a second metal elastic sheet 125. The moving column 121 and the protective cover plate 3 are in sliding connection. And the inside of the moving column 121 is of a hollow structure. And the power card slots 124 on the moving column 121 and the pressure-applying cross bars 123 correspond one by one. A plurality of pressure-applying cross bars 123 are evenly distributed on the clamping column 122. And each pressure-applying cross bar 123 is located between adjacent connection terminals 2. One end of the pressure-applying cross bar 123 in contact with the flexible cable is set as a flexible end. And the pressure-applying cross bar 123 and the clamping column 122 are in sliding connection. And each pressure-applying cross bar 123 is connected with the clamping column 122 through a second metal elastic sheet 125. The middle part of the pressure-applying cross bar 123 is spherical. And two-thirds of the spherical section in the middle of the pressure-applying cross bar 123 is located in the power card slot 124 opened on the side of the moving column 121.

[0043] After the protective cover plate 3 is closed, when the limit collar 9 moves towards the outside of the protective cover plate 3 under the action of magnetic force, the moving column 121 can move synchronously after the limit collar 9 moves. After the moving column 121 moves, the edge of the power card slot 124 on it can squeeze the spherical arc surface in the middle of the pressure bar 123, causing the pressure bar 123 to move towards the flexible cable. After the pressure bar 123 moves, the second metal elastic sheet 125 can be deformed. Since the pressure bar 123 is located between adjacent connection terminals 2, the moved pressure bar 123 can squeeze and dent the flexible cable between the adjacent connection terminals 2 at this time. Thereby, the limiting effect on the flexible cable can be improved, the clamping force can be enhanced, and the structural reliability can be effectively improved. At the same time, one end of the pressure bar 123 in contact with the flexible cable is a flexible end, and the flexible end can be set as rubber or other components that can elastically deform, not limited to a certain kind of buffer material. After the flexible end of the pressure bar 123 contacts the flexible cable, the flexible cable can be clamped and buffered through the elastic deformation of the flexible end, avoiding damage to the flexible cable caused by excessive clamping force. When the subsequent protective cover plate 3 is rotated and opened, when the limit collar 9 is reset, the power card slot 124 on its moving column 121 releases the extrusion of the pressure bar 123, and the pressure bar 123 is reset under the action of the second metal elastic sheet 125.

[0044] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art.

[0045] In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An FPC connector with a self-locking anti-disengagement cover, comprising a support base (1) and connection terminals (2) inserted on the support base (1), wherein a protective cover plate (3) is arranged on the support base (1), and an adjusting rotating shaft (4) fixed on the protective cover plate (3) is inserted into the connection terminals (2), and is characterized in that: The left and right sides of the support base (1) are fixed with insertion guide posts (7), and a first magnetic block (8) is connected to one end of the insertion guide post (7) facing the center of the support base (1). A limiting collar (9) is arranged on the side of the protective cover plate (3), and a second magnetic block (10) is installed inside the limiting collar (9). The limiting collar (9) is connected to the protective cover plate (3) through a first metal elastic sheet (11), and the inner surface of the protective cover plate (3) is a smooth plane. A boosting and pressing component (12) for positioning the FPC is installed on the limiting collar (9). The first magnetic block (8) at the end of the insertion guide post (7) generates a magnetic attraction force on the second magnetic block (10) inside the limiting collar (9) on the side of the protective cover plate (3) after rotation and closure. The boosting and pressing component (12) includes a moving column (121) fixed on the limiting collar (9), and a clamping column (122) is arranged inside the moving column (121). The middle part of the clamping column (122) is fixed on the protective cover plate (3), and a pressing cross bar (123) is arranged on the side of the clamping column (122). The pressing cross bar (123) passes through a power slot (124) opened on the moving column (121), and one end of the pressing cross bar (123) extending into the clamping column (122) is connected to the clamping column (122) through a second metal elastic sheet (125). The middle part of the pressing cross bar (123) is spherical, and two-thirds of the spherical section in the middle of the pressing cross bar (123) is located in the power slot (124) opened on the side of the moving column (121). The power slots (124) on the moving column (121) and the pressing cross bars (123) are in one-to-one correspondence. A plurality of pressing cross bars (123) are evenly distributed on the clamping column (122), and each pressing cross bar (123) is located between adjacent connection terminals (2).

2. The FPC connector with a self-locking anti-disengagement cover according to claim 1, wherein: One end of the connection terminal (2) close to the adjusting rotating shaft (4) extends outward to form a bending part (5), and the adjusting rotating shaft (4) is located inside the bending part (5). The lower end of the connection terminal (2) arches outward to form an abutting part (6) for supporting the FPC.

3. The FPC connector with a self-locking anti-disengagement cover according to claim 1, characterized in that: The magnetism of the first magnetic block (8) at the end of the insertion guide post (7) is opposite to that of the second magnetic block (10) inside the limiting collar (9), and the side of the limiting collar (9) facing the insertion guide post (7) is provided with an open structure.

4. The FPC connector with a self-locking anti-disengagement cover according to claim 3, wherein: The port of the limiting collar (9) is flush with the side of the protective cover plate (3) in the initial state, and the inner wall of the limiting collar (9) is in contact with the outer wall of the insertion guide post (7).

5. The FPC connector with a self-locking anti-detachment cover according to claim 1, wherein: One end of the pressing cross bar (123) in contact with the flexible cable is set as a flexible end, and the pressing cross bar (123) is slidably connected to the clamping column (122), and each pressing cross bar (123) is connected to the clamping column (122) through a second metal elastic sheet (125).

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