High frequency FPC lift-off connector

Abstract

The application discloses a high-frequency FPC rear-lifting type connector, which comprises a connector main body, a front cover body, a rear cover body, signal terminals and mechanism terminals, the connector main body is provided with front plug-in type and rear plug-in type terminal grooves for clamping the signal terminals and H-shaped mechanism terminals respectively, the front cover body is rotationally connected with the connector main body through a hinge convex and is provided with a linkage arm, the rear cover body is hingedly connected with the mechanism terminals and is provided with a linkage groove which is slidingly connected with the linkage arm, so that the rear cover body and the front cover body are synchronously opened and closed, the metal fixing sheet of the application is in contact with the front cover body or an embedded shielding shell to form complete electromagnetic shielding, thereby effectively guaranteeing the high-frequency signal transmission performance, the rotationally connected part of the rear cover body is used to spread the H-shaped mechanism terminals to provide sufficient crimping force, and the limiting part of the front cover body is combined with the wire row to be interlocked, so that high reliability of connection and convenience of operation are realized, and the application is particularly suitable for high-frequency signal connection scenes with limited space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, in particular to a high-frequency FPC rear-lifting connector. BACKGROUND

[0002] In electronic devices, especially compact electronic products such as smart phones, tablets, wearable devices, etc., FPC connectors are widely used for signal connection between mainboards and display screens, camera modules and other components. With the continuous improvement of signal transmission frequency, higher requirements are put forward for the electromagnetic shielding performance, connection stability and operation convenience of the connector.

[0003] Traditional FPC connectors usually adopt a front-lifting structure, which directly presses the FPC wire row through a cover plate. However, in some space-limited layouts, it is very inconvenient to operate the cover plate from the front of the connector. In addition, high-frequency signal transmission requires the connector to have a complete shielding structure to suppress electromagnetic interference (EMI). Some existing connectors have the problems of insufficient shielding, insufficient pressure connection, unstable contact impedance, and complicated operation steps. Therefore, there is an urgent need for an FPC connector that can meet the requirements of high-frequency signal transmission, has good shielding performance, is easy to operate, and has reliable connection. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a high-frequency FPC rear-lifting connector to solve the problems of poor shielding performance, inconvenient operation and insufficient connection reliability in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0006] A high-frequency FPC rear-lifting connector, comprising a connector main body, a front cover body, a rear cover body, signal terminals and mechanism terminals, the connector main body is provided with a front plug-in terminal slot and a rear plug-in terminal slot, the signal terminals are clamped in the front plug-in terminal slot, the mechanism terminals are clamped in the rear plug-in terminal slot, the upper part of the signal terminal is provided with a wire row connecting slot for wire row insertion, the front cover body is arranged above the wire row connecting slot, the rear cover body is arranged above the mechanism terminals, the connector main body is fixedly provided with a hinge protrusion on both sides, the front cover body is provided with a hinge hole, the front cover body is rotatably connected with the hinge protrusion through the hinge hole, one end of the front cover body is provided with a linkage arm, the rear cover body is rotatably connected with the mechanism terminals, both ends of the rear cover body are provided with linkage grooves, the linkage arm is slidably connected with the linkage grooves of the rear cover body, when the rear cover body is lifted, the front cover body is lifted in linkage, when the rear cover body is closed, the front cover body is also closed.

[0007] Further, the front cover body is made of electromagnetic shielding material, and an elastic pressing part is formed by punching the front cover body integrally, and the elastic pressing part is used for pressing the inserted wire harness.

[0008] Further, the front cover body is made of insulating material, and a shielding shell is embedded in the front cover body, and the shielding shell is provided with an elastic pressing part used for pressing the inserted wire harness.

[0009] Further, the front cover body is provided with a limiting part, and the insertion end of the wire harness is provided with a corresponding interlocking groove, and the limiting part is inserted into the interlocking groove when the front end cover is closed.

[0010] Further, the mechanism terminal is in H shape, and comprises a lower fixed terminal, an upper elastic terminal and an elastic connecting part, and the two ends of the elastic connecting part are fixedly connected with the lower fixed terminal and the upper elastic terminal respectively.

[0011] Further, the rear cover body is provided with a corresponding number of rotating connecting parts corresponding to the mechanism terminal, and the rotating connecting parts are in flat lying state when the rear cover body is lifted, and the rotating connecting parts are in vertical state when the rear cover body is closed, and when the rear cover body is closed, the upper and lower ends of the rotating connecting parts support and open the lower fixed terminal and the upper elastic terminal connected with the rotating connecting parts to a certain extent, so that the other end of the upper elastic terminal presses the inserted wire harness.

[0012] Further, the two ends of the connector body are further provided with limiting blocks, and the limiting blocks are used for limiting the lifting angle of the front cover body, and the lifting angle of the rear cover body is controlled through the lifting angle of the front cover body.

[0013] Further, the opening end of the linkage groove is respectively provided with a crimping protrusion and a jacking protrusion, and the crimping protrusion and the jacking protrusion are always in active and close connection with the terminal end of the linkage arm of the front cover body.

[0014] Further, the rear cover body is provided with a buckling part, and the connector body is provided with a buckling part matched with the buckling part, and the buckling part and the buckling part can be in locked state.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] 1. Back-lifting linkage operation: The opening and closing of the front and rear cover bodies can be controlled synchronously by operating the rear cover body, which is particularly suitable for installation scenarios where the front operating space is limited, greatly improving the convenience of operation. At the same time, through the lever structure of the front cover body, the closing strength of the front cover body and the pressure of the inserted wire harness are realized.

[0017] 2. Excellent high-frequency performance and shielding effect: Through the close contact of the metal fixing sheet and the front cover body (or the embedded shielding shell), a continuous electromagnetic shielding cavity is formed, effectively suppressing electromagnetic interference and ensuring the integrity of high-frequency signal transmission.

[0018] 3. High connection reliability: The H-shaped mechanism terminal cooperates with the rotating connection part of the rear cover body, which can generate stable and sufficient pressure when closed; at the same time, the limiting part on the front cover body cooperates with the interlocking groove of the wire harness, realizing mechanical locking, and double guaranteeing the stability of the connection, with strong anti-vibration and impact ability.

[0019] 4. Compact structure, long service life: The overall structure design is ingenious, the linkage mechanism runs smoothly, and the stress distribution of each component is reasonable, prolonging the service life of the connector. BRIEF DESCRIPTION OF DRAWINGS

[0020] The disclosure of the present application is explained with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present application, and in the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0021] Figure 1 is a three-dimensional schematic diagram of the front and rear covers of embodiment 1 in the open state;

[0022] Figure 2 is a three-dimensional schematic diagram of the front and rear covers of embodiment 1 in the closed state;

[0023] Figure 3 is a three-dimensional exploded schematic diagram of embodiment 1 of the present application;

[0024] Figure 4 is a schematic diagram of the side view structure of the signal terminal and the mechanism terminal of the present application;

[0025] Figure 5 is a schematic diagram of the cut internal structure of embodiment 1 of the present application.

[0026] Reference signs: 1. Connector body; 2. Front cover; 3. Rear cover; 4. Signal terminal; 5. Mechanism terminal; 6. Front plug-in terminal slot; 7. Rear plug-in terminal slot; 8. Wire harness connecting slot; 9. Hinge protrusion; 10. Hinge hole; 11. Linkage arm; 12. Linkage slot; 13. Elastic press-fit part; 14. Metal fixing plate; 15. Limiting part; 17. Lower fixed terminal; 18. Upper elastic terminal; 19. Elastic connecting part; 20. Rotating connecting part; 21. Limiting block; 22. Pressure protrusion; 23. Jacking protrusion. DETAILED DESCRIPTION

[0027] For easy understanding, those skilled in the art can propose various structural modes and implementation modes which can be replaced with each other without changing the spirit of the present application. Therefore, the following detailed description and the drawings are only exemplary description of the technical solution of the present application, and should not be regarded as the whole or as the limitation or restriction of the technical solution of the present application. Embodiment 1

[0028] Reference Figures 1-5 As shown in the drawings, the present application discloses a high-frequency FPC rear lifting connector, which comprises a connector body 1, a front cover 2, a rear cover 3, a signal terminal 4 and a mechanism terminal 5. The connector body 1 is provided with a front plug-in terminal slot 6 and a rear plug-in terminal slot 7. The signal terminal 4 is clamped in the front plug-in terminal slot 6, and the mechanism terminal 5 is clamped in the rear plug-in terminal slot 7. The upper part of the signal terminal 4 is provided with a wire harness connecting slot 8 for wire harness insertion. By separating the mechanism terminal 5 from the signal terminal 4, the mechanism terminal 5 only provides terminal mechanical performance, and the signal terminal 4 provides electrical signal transmission. The signal terminal 4 has simple features and shortened current path, which is beneficial to the high-frequency and high-speed improvement of signal transmission.

[0029] The upper part of the wire harness connecting slot 8 is covered with the front cover 2, and the upper part of the mechanism terminal 5 is covered with the rear cover 3. The two sides of the connector body 1 are fixedly provided with hinge protrusions 9. The front cover 2 is provided with hinge holes 10. The front cover 2 is rotatably connected with the hinge protrusions 9 through the hinge holes 10. One end of the front cover 2 is provided with a linkage arm 11. The rear cover 3 is rotatably connected with the mechanism terminal 5. The two ends of the rear cover 3 are provided with linkage slots 12. The linkage arm 11 is slidably connected with the linkage slots 12 of the rear cover 3. When the rear cover 3 is lifted, the front cover 2 is lifted in linkage. When the rear cover 3 is closed, the front cover 2 is also closed.

[0030] Through the linkage mode of the rear cover 3 and the front cover 2, the closing strength of the front cover 2 can be enhanced. That is, through the lever type structure of the front cover 2, the effect of pressing the wire harness by the front cover 2 is realized, and the front cover 2 is ensured not to be mistakenly opened due to the pulling of the wire harness.

[0031] The front cover 2 is made of electromagnetic shielding material. The front cover 2 is provided with an elastic pressing component 13 formed integrally by punching the front cover 2. The elastic pressing component 13 is used to press the inserted wire bar. The connector body 1 is provided with a fixed connection groove. A metal fixing piece 14 is inserted into the fixed connection groove. The metal fixing piece 14 is in close contact with the front cover 2.

[0032] The metal fixing plate 14 is used for fixing and soldering the connector. At the same time, the metal fixing plate 14 can be used to ground the shielding shell, and conduct static electricity, noise and other signals to achieve a better shielding effect.

[0033] The front cover 2 is provided with a limiting part 15, and the insertion end of the cable strip is provided with a corresponding interlocking groove. The limiting part 15 is inserted into the interlocking groove when the front cover is closed.

[0034] By interlocking the limiting part 15 of the front cover 2 with the interlocking groove, and in conjunction with the opening method of the rear cover 3 and the front cover 2, the cable strip is less likely to be pulled out accidentally.

[0035] The mechanism terminal 5 is H-shaped and includes a lower fixed terminal 17, an upper elastic terminal 18 and an elastic connecting part 19. The two ends of the elastic connecting part 19 are fixedly connected to the lower fixed terminal 17 and the upper elastic terminal 18, respectively.

[0036] The rear cover 3 is provided with a number of rotating connecting parts 20 corresponding to the mechanism terminals 5. The rotating connecting parts 20 are in a flat state when the rear cover 3 is lifted, and in an upright state when the rear cover 3 is closed. When the rear cover 3 is closed, the upper and lower ends of the rotating connecting parts 20 respectively support and to a certain extent spread the lower fixed terminal 17 and the upper elastic terminal 18 connected to the rotating connecting parts 20, thereby pressing the other end of the upper elastic terminal 18 against the inserted wire.

[0037] The connector body 1 is also provided with limiting blocks 21 at both ends. The limiting blocks 21 are used to limit the lifting angle of the front cover 2 and control the lifting angle of the rear cover 3 through the lifting angle of the front cover 2.

[0038] The opening end of the linkage groove 12 is provided with a pressing protrusion 22 and a lifting protrusion 23 respectively. One of the pressing protrusion 22 and the lifting protrusion 23 is always movably and closely connected to the end of the linkage arm 11 of the front cover 2.

[0039] The rear cover 3 is provided with a fastening part, and the connector body 1 is provided with a fastening element that matches the fastening part. The fastening part and the fastening element cooperate to lock the rear cover 3.

[0040] Work process:

[0041] Opening: The user holds the rear edge of the rear cover 3 with their fingers and lifts it upwards. The rear cover 3 rotates around its hinge point with the mechanism terminal 5, and the linkage groove 12 on it moves accordingly. The groove wall of the linkage groove 12 pushes the linkage arm 11, forcing the front cover 2 to rotate upwards around the hinge protrusion 9, thus lifting it up synchronously. When opened to a certain angle, the limiting blocks 21 at both ends of the connector body 1 will block the front cover 2, limiting its maximum opening angle, and also limiting the opening angle of the rear cover 3.

[0042] Insert the FPC cable: Insert the FPC cable into the cable connection slot 8 below the front cover 2 in the correct direction.

[0043] Closing: The user presses down on the back cover 3. The back cover 3 pulls the linkage arm 11 through the linkage groove 12, causing the front cover 2 to close synchronously. During this process:

[0044] a) The rotating connecting part 20 of the back cover 3 changes from a flat state to an upright state, with its two ends pressing against the lower fixed terminal 17 and the upper elastic terminal 18 respectively. By using the lever principle, the elastic force of the elastic connecting part 19 is amplified, so that the front end of the upper elastic terminal 18 presses against the wire bar with greater force, thus achieving a reliable crimping.

[0045] b) When the front cover 2 is closed, the elastic press-fit 13 on it presses against the back of the cable strip, providing uniform contact pressure. At the same time, the limiting part 15 is inserted into the interlocking groove at the end of the cable strip, forming a mechanical interlock to prevent the cable strip from coming off during vibration.

[0046] c) When the back cover 3 is fully closed, its latching part (such as a hook) engages with the latching part (such as a slot) on the connector body 1, making a "click" sound, indicating that it is locked.

[0047] d) As shown in the figure, during the closing process, the crimping protrusion 22 at the opening end of the linkage groove 12 will contact the end of the linkage arm 11 to ensure that the closing is in place and maintain a certain pre-tightening force. Example 2

[0048] The difference between this embodiment and embodiment 1 is that: the front cover 2 is made of insulating material, and a shielding shell is embedded in the front cover 2. The shielding shell is provided with an elastic pressing member 13, which is used to press the inserted wire bar. The connector body 1 is provided with a fixed connection groove, and a metal fixing piece 14 is inserted into the fixed connection groove. The metal fixing piece 14 is in close contact with the shielding shell.

[0049] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A high-frequency FPC rear-hinged connector, comprising a connector body (1), a front cover (2), a rear cover (3), signal terminals (4), and mechanism terminals (5), characterized in that: The connector body (1) is provided with a front insertion terminal slot (6) and a rear insertion terminal slot (7). The front insertion terminal slot (6) is fitted with a signal terminal (4), and the rear insertion terminal slot (7) is fitted with a mechanism terminal (5). Above the signal terminal (4) is a cable strip connection slot (8) for cable strip insertion. A front cover (2) is provided above the cable strip connection slot (8), and a rear cover (3) is provided above the mechanism terminal (5). Hinged protrusions (9) are fixed on both sides of the connector body (1). The body (2) has a hinge hole (10) and the front cover (2) is rotatably connected to the hinge protrusion (9) through the hinge hole (10). One end of the front cover (2) is provided with a linkage arm (11). The rear cover (3) is rotatably hinged to the mechanism terminal (5). Both ends of the rear cover (3) are provided with linkage grooves (12). The linkage arm (11) is slidably connected to the linkage groove (12) of the rear cover (3). When the rear cover (3) is lifted, the front cover (2) is lifted in linkage. When the rear cover (3) is closed, the front cover (2) is closed in the same way. The mechanism terminal (5) is H-shaped and includes a lower fixed terminal (17), an upper elastic terminal (18) and an elastic connecting part (19). The two ends of the elastic connecting part (19) are fixedly connected to the lower fixed terminal (17) and the upper elastic terminal (18) respectively. The rear cover (3) is provided with a number of rotating connecting parts (20) corresponding to the mechanism terminal (5). The rotating connecting parts (20) are in a flat state when the rear cover (3) is lifted, and in an upright state when the rear cover (3) is closed. When the rear cover (3) is closed, the upper and lower ends of the rotating connecting parts (20) respectively support and to a certain extent open the lower fixed terminal (17) and the upper elastic terminal (18) connected to the rotating connecting parts (20), thereby realizing that the other end of the upper elastic terminal (18) is pressed against the inserted wire. The opening end of the linkage groove (12) is provided with a pressing protrusion (22) and a lifting protrusion (23), and the pressing protrusion (22) and the lifting protrusion (23) are always in contact with the end of the linkage arm (11) of the front cover (2).

2. The high-frequency FPC rear-hinged connector according to claim 1, characterized in that: The front cover (2) is made of electromagnetic shielding material. The front cover (2) is provided with an elastic pressing part (13) integrally formed by punching the front cover (2). The elastic pressing part (13) is used to press the inserted wire. The connector body (1) is provided with a fixed connection groove. A metal fixing piece (14) is inserted into the fixed connection groove. The metal fixing piece (14) is in close contact with the front cover (2).

3. A high-frequency FPC rear-hinged connector according to claim 1, characterized in that: The front cover (2) is made of insulating material. A shielding shell is embedded in the front cover (2). The shielding shell is provided with an elastic pressing component (13). The elastic pressing component (13) is used to press the inserted wire. A fixed connection groove is provided on the connector body (1). A metal fixing piece (14) is inserted into the fixed connection groove. The metal fixing piece (14) is in close contact with the shielding shell.

4. A high-frequency FPC rear-hinged connector according to claim 2 or 3, characterized in that: The front cover (2) is provided with a limiting part (15), and the insertion end of the cable strip is provided with a corresponding interlocking groove. The limiting part (15) is inserted into the interlocking groove when the front cover is closed.

5. A high-frequency FPC rear-hinged connector according to claim 1, characterized in that: The connector body (1) is also provided with limiting blocks (21) at both ends. The limiting blocks (21) are used to limit the lifting angle of the front cover (2) and control the lifting angle of the rear cover (3) by the lifting angle of the front cover (2).

6. A high-frequency FPC rear-hinged connector according to claim 1, characterized in that: The rear cover (3) is provided with a fastening part, and the connector body (1) is provided with a fastening element that matches the fastening part. The fastening part and the fastening element cooperate to lock the rear cover (3).

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