Self-locking flexible flat cable connector

Abstract

A self-locking type flexible flat cable connector provided by the present invention comprises a plastic shell and self-locking hanging buckle assemblies symmetrically installed on the left and right sides of the plastic shell, each self-locking hanging buckle assembly comprises a vertical connection part, a fixed arm, a pressing arm, an insertion plate, a U-shaped connection part, an elastic arm and a jacking part which are integrally arranged, the front end of the fixed arm is in close-fitting connection with a fixed slot, and the rear end of the pressing arm is in close-fitting connection with the fixed slot. The outer end of the jacking part is fixed to the upper side of the elastic arm, a jacking pressure plate is vertically arranged above the inner end of the jacking part, the jacking pressure plate corresponds to the outer side of the receding groove, and a first inclined face facing upwards is arranged on the inner side of the jacking pressure plate; the first slope corresponds to the outer side of the pressing arm. The connector has the advantages that the thickness of the connector can be greatly reduced, fine production and manufacturing of electronic products are facilitated, on the other hand, the self-locking hanging buckle assembly is easy and convenient to operate, and the wiring board and the plastic shell can be firmly connected.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a self-locking flexible cable connector. Background Art

[0002] Flexible cable connectors are used to connect circuit boards and flexible printed circuit boards to achieve mechanical and electrical connections. Today's flexible cable connectors are mainly used in electronic devices such as LCD and LED liquid crystal displays, scanners, digital cameras, game consoles, tablet computers, laptops, and car theaters. As people's requirements for the refinement of various electronic products become higher and higher, there are correspondingly higher standards for the thickness of connectors. Due to the limitations of the self-locking structure, the thickness of traditional flexible cables is relatively large and it is difficult to meet current usage requirements. Therefore, it is necessary to produce a self-locking flexible cable connector whose self-locking structure is more compact and can reduce the thickness of the connector to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a self-locking flexible cable connector to solve the problems mentioned in the background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A self-locking flexible cable connector, comprising a plastic shell and a self-locking hook assembly symmetrically installed on the left and right sides of the plastic shell, the lower side of the plastic shell is provided with a fixed slot opening backwards, the upper outer side of the plastic shell is provided with an air avoidance slot, the front side of the plastic shell is provided with a plug-in slot, the plastic shell is provided with a positioning socket whose lower end is connected to the plug-in slot, the positioning socket corresponds to the inner side of the air avoidance slot, the self-locking hook assembly comprises an integrally arranged vertical connection part, a fixed arm, a pressure arm, a plug plate, a U-shaped connection part, an elastic arm and a lifting part, the vertical connection part corresponds to the rear side of the plastic shell, the rear end of the fixed arm is connected to the vertical The lower end of the connecting part is connected, the front end of the fixed arm is tightly connected with the fixed slot, the rear end of the pressure arm is connected with the upper end of the vertical connecting part, the pressure arm corresponds to the top of the air avoidance slot, the plug plate is vertically fixed at the front end of the pressure arm, the plug plate passes through the positioning socket and the lower end corresponds to the plug-in slot, the U-shaped connecting part opens forward and the left and right ends are respectively connected with the outer side of the vertical connecting part and the rear end of the elastic arm, the outer end of the lifting part is fixed to the upper side of the elastic arm, and a lifting pressure plate is vertically provided above the inner end of the lifting part, the lifting pressure plate corresponds to the outer side of the air avoidance slot, and the inner side of the lifting pressure plate is provided with a first inclined surface facing upwards, and the first inclined surface corresponds to the outer side of the pressure arm.

[0006] Further description of the present invention: two groups of lifting plates are arranged side by side along the front-to-back direction on the lifting part, and a second inclined surface facing downward is provided on the outer side of the pressure arm, and the second inclined surface corresponds to the first inclined surface.

[0007] Further description of the present invention: A limiting hole is provided on the outer side of the front end of the plastic shell, and the self-locking buckle assembly also includes a limiting plate connected to the front end of the elastic arm, and the limiting plate corresponds to the limiting hole.

[0008] Further description of the present invention: It also includes signal differential terminals and grounding terminals, both of which are fixed on the plastic shell and the front ends of which correspond to the plug-in slots, the signal differential terminals are arranged in pairs, and a group of grounding terminals is set between every two pairs of signal differential terminals.

[0009] Further description of the present invention: the width of the ground terminal is greater than the width of the signal differential terminal.

[0010] Further description of the present invention: It also includes a wiring board, which is inserted into the plug-in slot. The wiring board is electrically connected to the signal differential terminal and the ground terminal. A retaining groove is provided on the outer side of the wiring board, and the lower end of the plug-in board corresponds to the retaining groove.

[0011] Further description of the present invention: A third inclined surface is provided on the front side of the lower end of the plug board.

[0012] Further description of the present invention: It also includes a shielding cover plate, which is fixed on the top of the plastic shell and corresponds to between the two groups of pressure arms.

[0013] The beneficial effects of the present invention are as follows: before the wiring board is inserted, the plug board is inserted into the positioning socket, at which time the lifting part and the pressure arm have no contact, and when it is necessary to connect with the wiring board, the elastic arms on the self-locking hook components at both ends are pressed inwardly, and the front ends of the elastic arms are bent inwardly, thereby driving the lifting part to move inwardly into the air avoidance groove, and after the first inclined surface on the inner side of the lifting pressure plate contacts the outer side of the pressure arm, under the guiding action of the first inclined surface, the front end of the pressure arm is gradually lifted, and then the plug board is lifted, and the plug board is no longer in the plug-in slot, and the wiring board is inserted at this time, and finally the elastic arm is no longer pressed, then the lifting part is reset, and the pressure arm and the plug board are also reset accordingly, and the plug board is inserted into the hole position of the wiring board, so that the wiring board and the plastic shell are firmly connected. The advantages of this design are: after the cable board is connected, the pressure arm is horizontally pressed against the top of the plastic shell, and there is no upward protruding locking structure, which can greatly reduce the thickness of the connector and facilitate the refined production of electronic products. On the other hand, the self-locking buckle assembly is easy to operate and can firmly connect the cable board to the plastic shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural diagram of the present invention;

[0015] Figure 2 is a decomposition structure diagram of the present invention;

[0016] Figure 3 is a structural diagram of the plastic housing of the present invention (rear view);

[0017] Figure 4 It is a structural diagram of the self-locking hook buckle assembly of the present invention;

[0018] Figure 5 It is a front view of the self-locking hook buckle assembly of the present invention;

[0019] Figure 6 is a partially cutaway stereogram of the present invention;

[0020] Figure 7 It is a schematic diagram of the arrangement of the signal differential terminal and the ground terminal in the present invention;

[0021] Description of reference numerals:

[0022] 1. Plastic shell; 11. Fixed slot; 12. Air-avoiding slot; 13. Plug-in slot; 14. Positioning socket;

[0023] 15. Limiting hole; 2. Self-locking hook assembly; 21. Vertical connecting part; 22. Fixed arm; 23. Pressing arm;

[0024] 231, second inclined surface; 24, plug plate; 241, third inclined surface; 25, U-shaped connecting portion; 26, elastic arm;

[0025] 27. Lifting part; 271. Lifting pressure plate; 2711. First inclined surface; 28. Limiting plate; 3. Signal differential terminal; 4. Grounding terminal; 5. Wiring board; 51. Retraction groove; 6. Shielding cover. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] like Figures 1 to 7As shown, a self-locking flexible cable connector comprises a plastic shell 1 and a self-locking hook assembly 2 symmetrically installed on the left and right sides of the plastic shell 1, a fixed slot 11 with an opening facing backward is provided on the lower side of the plastic shell 1, an air avoidance slot 12 is provided on the upper outer side of the plastic shell 1, a plug-in slot 13 is provided on the front side of the plastic shell 1, a positioning socket 14 whose lower end is connected to the plug-in slot 13 is provided on the plastic shell 1, and the positioning socket 14 corresponds to the inner side of the air avoidance slot 12, the self-locking hook assembly 2 comprises an integrally arranged vertical connection part 21, a fixed arm 22, a pressure arm 23, a plug plate 24, a U-shaped connection part 25, an elastic arm 26 and a lifting part 27, the vertical connection part 21 corresponds to the rear side of the plastic shell 1, the rear end of the fixed arm 22 is connected to the lower end of the vertical connection part 21 The ends are connected, the front end of the fixed arm 22 is tightly connected with the fixed slot 11, the rear end of the pressure arm 23 is connected with the upper end of the vertical connection part 21, the pressure arm 23 corresponds to the top of the air avoidance groove 12, the plug plate 24 is vertically fixed at the front end of the pressure arm 23, the plug plate 24 passes through the positioning socket 14 and the lower end corresponds to the plug-in slot 13, the U-shaped connection part 25 opens forward and the left and right ends are respectively connected with the outer side of the vertical connection part 21 and the rear end of the elastic arm 26, the outer end of the lifting part 27 is fixed on the upper side of the elastic arm 26, and a lifting plate 271 is vertically provided above the inner end of the lifting part 27, the lifting plate 271 corresponds to the outer side of the air avoidance groove 12, and the inner side of the lifting plate 271 is provided with a first inclined surface 2711 facing upwards, and the first inclined surface 2711 corresponds to the outer side of the pressure arm 23.

[0028] Before inserting the wiring board 5, the plugging plate 24 is inserted into the positioning socket 14. At this time, the lifting portion 27 and the pressure arm 23 have no contact. When it is necessary to connect with the wiring board 5, the elastic arms 26 on the self-locking hook components 2 at both ends are pressed inwardly, and the front ends of the elastic arms 26 are bent inwardly, thereby driving the lifting portion 27 to move inwardly into the air avoidance groove 12. After the first inclined surface 2711 on the inner side of the lifting pressure plate 271 contacts the outer side of the pressure arm 23, under the guidance of the first inclined surface 2711, the front end of the pressure arm 23 is gradually lifted, and then the plugging plate 24 is lifted, and the plugging plate 24 is no longer in the plug-in slot 13. At this time, the wiring board is inserted, and finally the elastic arm 26 is no longer pressed, then the lifting portion 27 is reset, and the pressure arm 23 and the plugging plate 24 are also reset accordingly, and the plugging plate 24 is inserted into the hole position of the wiring board 5, so that the wiring board 5 and the plastic shell 1 are firmly connected. The advantages of this design are: after the connection of the wiring board 5 is completed, the pressure arm 23 is horizontally pressed against the top of the plastic shell 1, and there is no upwardly protruding locking structure, which can greatly reduce the thickness of the connector and is conducive to the refined production and manufacturing of electronic products. On the other hand, the self-locking buckle assembly 2 is easy to operate and can firmly connect the wiring board 5 to the plastic shell 1.

[0029] The lifting pressure plates 271 are arranged in two groups side by side along the front-to-back direction on the lifting part 27. When the lifting pressure arm 23 is lifted, the force can be dispersed, so that the lifting pressure plates 271 are not easily deformed, thereby making the lifting action more stable and reliable. The outer side of the pressure arm 23 is provided with a second inclined surface 231 facing downward, and the second inclined surface 231 corresponds to the first inclined surface 2711. Through the cooperation of the first inclined surface 2711 and the second inclined surface 231, the pressure arm 23 can be lifted more smoothly.

[0030] The front end of the plastic housing 1 is provided with a limiting hole 15, and the self-locking hook assembly 2 further includes a limiting plate 28 connected to the front end of the elastic arm 26, and the limiting plate 28 corresponds to the limiting hole 15. The limiting hole 15 can limit the swinging range of the front end of the elastic arm 26. Specifically, the inward swinging range of the elastic arm 26 is limited by the inner side of the limiting hole 15, which can prevent the inner end of the lifting part 27 from colliding with the plastic housing 1 and deforming, and the outward swinging range of the elastic arm 26 is limited by the outer side of the limiting hole 15, which can prevent the elastic arm 26 from being pulled outward excessively due to misoperation and making it impossible for the elastic arm 26 to recover.

[0031] In this design, signal differential terminals 3 and grounding terminals 4 are also included. Both signal differential terminals 3 and grounding terminals 4 are fixed on the plastic housing 1 and their front ends correspond to the plug-in slots 13. Signal differential terminals 3 are arranged in pairs, and a group of grounding terminals 4 is arranged between every two pairs of signal differential terminals 3. The signal differential terminals 3 and grounding terminals 4 are arranged at intervals, which can reduce the crosstalk between each pair of signal differential terminals 3. The width of the grounding terminal 4 is greater than the width of the signal differential terminal 3, which serves to widen the spacing between each pair of signal differential terminals 3, and further reduce the mutual crosstalk signals between each pair of signal differential terminals 3.

[0032] In this design, a wiring board 5 is also included, which is inserted into the plug-in slot 13. The wiring board 5 is electrically connected to the signal differential terminal 3 and the ground terminal 4. A stop groove 51 is provided on the outer side of the wiring board 5, and the lower end of the plug-in plate 24 corresponds to the stop groove 51. The plug-in plate 24 passes through the positioning plug hole 14 and is inserted into the stop groove 51 of the wiring board 5, so that the wiring board 5 cannot be separated from the plug-in slot 13, thereby making the connection between the wiring board 5 and the signal differential terminal 3 and the ground terminal 4 more stable and reliable.

[0033] A third inclined surface 241 is provided on the front side of the lower end of the plug board 24. Through the third inclined surface 241, when the wiring board 5 is inserted into the plug-in slot 13, the rear end of the wiring board 5 can directly contact the third inclined surface 241, and under the action of the third inclined surface 241, the plug board 24 is lifted upward until the retaining groove 51 of the wiring board runs to the lower end of the plug board 24, and the plug board 24 is downwardly inserted into the retaining groove 51, thereby quickly completing the connection between the wiring board 5 and the terminal. That is to say, after the third inclined surface 241 is provided, when inserting the wiring board 5, there is no need to press the elastic arm 26, which improves the efficiency and convenience of assembly.

[0034] In the present design, a shielding cover plate 6 is also included. The shielding cover plate 6 is fixed on the top of the plastic shell 1. The shielding cover plate 6 corresponds to between the two groups of pressure arms 23. The shielding cover plate 6 can reduce the signal interference of other signals at the user end to the signal of the connector, thereby ensuring the high efficiency of the signal transmission of the connector.

[0035] The working principle of this embodiment:

[0036] Before inserting the wiring board 5, the plugging plate 24 is inserted into the positioning socket 14. At this time, the lifting portion 27 and the pressure arm 23 have no contact. When it is necessary to connect with the wiring board 5, the elastic arms 26 on the self-locking hook components 2 at both ends are pressed inwardly, and the front ends of the elastic arms 26 are bent inwardly, thereby driving the lifting portion 27 to move inwardly into the air avoidance groove 12. After the first inclined surface 2711 on the inner side of the lifting pressure plate 271 contacts the outer side of the pressure arm 23, under the guidance of the first inclined surface 2711, the front end of the pressure arm 23 is gradually lifted, and then the plugging plate 24 is lifted, and the plugging plate 24 is no longer in the plug-in slot 13. At this time, the wiring board is inserted, and finally the elastic arm 26 is no longer pressed, then the lifting portion 27 is reset, and the pressure arm 23 and the plugging plate 24 are also reset accordingly, and the plugging plate 24 is inserted into the hole position of the wiring board 5, so that the wiring board 5 and the plastic shell 1 are firmly connected. After the third inclined surface 241 is provided, the cable board 5 may be directly inserted into the plug-in slot 13 without pressing the elastic arm 26 , so that the plug-in board 24 is automatically lifted.

[0037] When the cable board 5 needs to be pulled out, the elastic arm 26 is pressed inward to lift the plug board 24 so that the plug board 24 is no longer inserted in the limiting hole 15, and the cable board 5 can be pulled out.

[0038] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A self-locking flexible cable connector, characterized in that: The invention comprises a plastic shell and a self-locking buckle assembly symmetrically installed on the left and right sides of the plastic shell, wherein a fixing slot opening backwards is provided on the lower side of the plastic shell, a void-avoiding slot is provided on the upper outer side of the plastic shell, a plug-in slot is provided on the front side of the plastic shell, a positioning socket whose lower end is connected to the plug-in slot is provided on the plastic shell, and the positioning socket corresponds to the inner side of the void-avoiding slot, and the self-locking buckle assembly comprises an integrally arranged vertical connection part, a fixed arm, a pressure arm, a plug plate, a U-shaped connection part, an elastic arm and a lifting part, wherein the vertical connection part corresponds to the rear side of the plastic shell, the rear end of the fixed arm is connected to the lower end of the vertical connection part, and the front end of the fixed arm is connected to the bottom end of the vertical connection part. The end is tightly connected with the fixed slot, the rear end of the pressure arm is connected with the upper end of the vertical connection part, the pressure arm corresponds to the top of the air avoidance groove, the plug plate is vertically fixed to the front end of the pressure arm, the plug plate passes through the positioning socket and the lower end corresponds to the plug-in slot, the U-shaped connection part opens forward and the left and right ends are respectively connected to the outside of the vertical connection part and the rear end of the elastic arm, the outer end of the lifting part is fixed on the upper side of the elastic arm, and a lifting pressure plate is vertically provided above the inner end of the lifting part, the lifting pressure plate corresponds to the outside of the air avoidance groove, and the inner side of the lifting pressure plate is provided with a first inclined surface facing upwards, and the first inclined surface corresponds to the outer side of the pressure arm.

2. The self-locking flexible cable connector according to claim 1, characterized in that: The lifting pressure plates are arranged in two groups side by side along the front-to-back direction on the lifting part, and the outer side of the pressure arm is provided with a second inclined surface facing downward, and the second inclined surface corresponds to the first inclined surface.

3. The self-locking flexible cable connector according to claim 1, characterized in that: A limiting hole is arranged on the outer side of the front end of the plastic shell, and the self-locking hook assembly further comprises a limiting plate connected to the front end of the elastic arm, and the limiting plate corresponds to the limiting hole.

4. The self-locking flexible cable connector according to claim 1, characterized in that: It also includes signal differential terminals and grounding terminals, which are both fixed on the plastic housing and have front ends corresponding to the plug-in slots. The signal differential terminals are arranged in pairs, and a group of grounding terminals is provided between every two pairs of the signal differential terminals.

5. The self-locking flexible cable connector according to claim 4, characterized in that: The width of the ground terminal is greater than the width of the signal differential terminal.

6. The self-locking flexible cable connector according to claim 4, characterized in that: It also includes a wiring board, which is inserted into the plug-in slot. The wiring board is electrically connected to the signal differential terminal and the ground terminal. A retaining groove is provided on the outer side of the wiring board, and the lower end of the plug-in plate corresponds to the retaining groove.

7. The self-locking flexible cable connector according to claim 6, characterized in that: A third inclined surface is provided on the front side of the lower end of the inserting plate.

8. The self-locking flexible cable connector according to claim 4, characterized in that: It also includes a shielding cover plate, which is fixed on the top of the plastic shell and corresponds to between the two groups of pressure arms.

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