FPC insertion self-locking connector

Abstract

The utility model discloses an FPC insertion self-locking connector which comprises an insulation body, a plurality of conductive terminals, two grounding sheets and a side cover. The insulating body is provided with an insertion cavity for inserting a flat cable; the plurality of conductive terminals are arranged on the insulation body, each conductive terminal is provided with a contact part and a welding part, the contact part extends into the insertion cavity to be in contact conduction with the flat cable, and the welding part extends out of the insulation body; the two grounding sheets are respectively arranged in the two ends of the insulating body; the clamping hook extends from the grounding piece, the clamping hook is matched with the buckling hole in the side edge of the end part of the flat cable for buckling and locking, the side cover can be laterally overturned relative to the insulating body in a matched manner, the poking claws extend from the two ends of the side cover, and the poking claws are used for poking the clamping hook to leave the buckling hole for unlocking, so that a lock catch terminal and a pressing button do not need to be specially arranged; therefore, the number of parts is reduced, the structure is simple and compact, production and assembly are convenient, stability and reliability of connection are improved, and convenience is brought to use.

Description

Technical Field

[0001] The utility model relates to the technology of connector field, in particular to a connector with self-locking when FPC is inserted. Background Art

[0002] FPC connector is a common type of connector. The FPC in FPC connector is the abbreviation of Flexible Printed Circuit, which means flexible printed connector in Chinese. This product is mainly used in various digital communication products, portable electronic products, computer peripherals, measuring instruments, automotive electronics and other fields, such as mobile phones, digital cameras, laptops, MID, MP3\4\5, handheld game consoles, audio systems, etc. When the FPC connector is used with the FFC (Flexible Flat Cable) cable, it can realize the signal connection or transmission between the functional modules inside the device or with external devices, as well as the connection between the device and the power supply or signal source, and finally realize the power / signal connection of the device.

[0003] The main structure of the current FPC connector includes an insulating body, multiple conductive terminals, two grounding plates and a side cover; the insulating body has an insertion cavity for inserting the cable; the multiple conductive terminals are all arranged on the insulating body, and each conductive terminal has a contact portion and a welding portion, the contact portion extends into the insertion cavity to contact and conduct with the cable, and the welding portion extends out of the insulating body; the two grounding plates are respectively arranged inside the two ends of the insulating body; when in use, the cable is inserted into the insertion cavity so that the cable is in contact with the contact portion. In the prior art, in order to enable the cable to be locked on the FPC connector, a locking terminal is usually set in the insulating body, and the cable is locked by the locking terminal, and then a push button is set in combination, and the locking terminal is pressed down by the push button to unlock the cable. This structure increases the number of components of the FPC connector, makes production and assembly inconvenient, and affects the stability and reliability of the connection. Therefore, it is necessary to improve the current FPC connector. Utility Model Content

[0004] In view of this, the utility model aims to address the deficiencies in the prior art, and its main purpose is to provide an FPC plug-in self-locking connector, which can effectively solve the problem that the existing FPC connector has many components, which causes inconvenience in production and assembly and affects the stability and reliability of the connection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A FPC plug-in self-locking connector comprises an insulating body, a plurality of conductive terminals, two grounding plates and a side cover; the insulating body has an insertion cavity for inserting a flat cable; the plurality of conductive terminals are arranged on the insulating body, each conductive terminal has a contact portion and a welding portion, the contact portion extends into the insertion cavity to contact and conduct with the flat cable, and the welding portion extends out of the insulating body; the two grounding plates are respectively arranged inside the two ends of the insulating body; the side cover is arranged on one side of the insulating body; each grounding plate extends a hook that is matched with a buckle hole on the side edge of the end of the flat cable and locked by buckling, the side cover is arranged to be flipped sideways relative to the insulating body, and both ends of the side cover extend a claw for pushing the hook away from the buckle hole to release the lock, and the claw extends into the insertion cavity.

[0007] As a preferred solution, the end of the insulating body is provided with a mounting hole and a fixing hole, and the grounding plate includes a base, and a limiting portion, a fixing portion and an elastic portion are bent and extended from the base, and the hook extends from one side of the elastic portion. The base, the limiting portion and the elastic portion are all located in the mounting hole, and the fixing portion is inserted into the fixing hole and fixed, so that the assembly is stable and reliable.

[0008] As a preferred solution, a pressing arm is bent and extended from the side cover, a limiting hole is provided at the root of the pressing arm, the limiting part passes through the limiting hole from bottom to top, and the tail end of the pressing arm presses on the elastic part, the elastic part acts on the pressing arm to reset the side cover, the structure is simple, the side cover can be automatically reset, and it is easy to use.

[0009] As a preferred solution, a welding foot is bent and extended from the base, and the welding foot extends out of the insulating body so as to be welded to an external circuit board to achieve reliable grounding.

[0010] As a preferred solution, the hook includes a limiting segment and a hook portion. The limiting segment is a bending structure. One end of the limiting segment is integrally connected to one side of the elastic portion. The limiting segment cooperates with the push claw. The hook portion is located at the other end of the limiting segment and cooperates with the button hole. The structure is simple and easy to self-lock and unlock.

[0011] As a preferred solution, elastic arms for guiding the cable and elastically pressing against the side of the cable extend from both ends of the side cover, and the elastic arms extend into the insertion cavity so that the cable can be more firmly pressed against the contact portion, making the connection more reliable.

[0012] As a preferred solution, the insulating body is provided with a plurality of terminal slots, each of which is laterally connected to the insertion cavity. The plurality of conductive terminals are respectively arranged and fixed in the corresponding terminal slots, and each contact portion respectively passes through the lateral opening of the terminal slot and extends into the insertion cavity. The structure is simple and the installation is stable and reliable.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0014] A hook is extended from the grounding plate, and the hook is locked with the buckle hole on the side of the end of the cable. The side cover is arranged to be flipped sideways relative to the insulating body, and claws are extended from both ends of the side cover. The hook is pushed away from the buckle hole by the claws to release the lock. There is no need to specially set a locking terminal and a push button, thereby reducing the number of parts, having a simple and compact structure, making production and assembly convenient, improving the stability and reliability of the connection, and bringing convenience to use.

[0015] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the assembly of the preferred embodiment of the utility model from another angle;

[0018] Figure 3 This is a three-dimensional schematic diagram of the assembly of the preferred embodiment of the utility model from another angle;

[0019] Figure 4 It is an exploded view of a preferred embodiment of the utility model;

[0020] Figure 5 It is an exploded view from another angle of the preferred embodiment of the utility model;

[0021] Figure 6 This is an exploded view of another preferred embodiment of the utility model;

[0022] Figure 7 It is a cross-sectional view of a preferred embodiment of the utility model;

[0023] Figure 8 It is another cross-sectional view of a preferred embodiment of the utility model.

[0024] Description of the accompanying drawings:

[0025] 10. Insulation body 11. Insertion cavity

[0026] 12. Mounting hole 13. Fixing hole

[0027] 14. Terminal slot 20. Conductive terminal

[0028] 21. Contact part 22. Welding part

[0029] 30. Grounding plate 31. Hook

[0030] 311, limit section 312, hook

[0031] 32. Base 33. Limiting part

[0032] 34. Fixed part 35. Elastic part

[0033] 36, welding foot 40, side cover

[0034] 41. Pusher claw 42. Pressing arm

[0035] 43. Elastic arm 401. Limiting hole

[0036] 50. Cable 51. Button hole

[0037] 52. Golden Finger. DETAILED DESCRIPTION

[0038] Please refer to Figures 1 to 8 As shown, it shows the specific structure of a preferred embodiment of the utility model, including an insulating body 10, a plurality of conductive terminals 20, two grounding plates 30 and a side cover 40.

[0039] The insulating body 10 has an insertion cavity 11 for inserting the flat cable 50; in the present embodiment, the insulating body 10 is made of plastic and is a vertical structure. The insertion cavity 11 is formed concave at the top of the insulating body 10, and the end of the insulating body 10 is provided with a mounting hole 12 and a fixing hole 13; and, the insulating body 10 has a plurality of terminal grooves 14, each of which is laterally connected to the insertion cavity 11, and the plurality of terminal grooves 14 are arranged side by side at intervals.

[0040] The multiple conductive terminals 20 are all arranged on the insulating body 10, and each conductive terminal 20 has a contact portion 21 and a welding portion 22. The contact portion 21 extends into the insertion cavity 11 to contact and conduct with the cable 50, and the welding portion 22 extends out of the insulating body 10; in the present embodiment, the multiple conductive terminals 20 are respectively arranged and fixed in the corresponding terminal slots 14, and each contact portion 21 passes through the lateral opening of the terminal slot 14 and extends into the insertion cavity 11, and the multiple conductive terminals 20 are arranged side by side and inserted and fixed in the corresponding terminal slots 14 from bottom to top, and the assembly is stable and reliable.

[0041] The two grounding plates 30 are respectively arranged inside the two ends of the insulating body 10; each grounding plate 30 extends a hook 31 that is locked with the buckle hole 51 on the side of the end of the flat cable 50. Specifically, the grounding plate 30 includes a base 32, and a limit portion 33, a fixing portion 34 and an elastic portion 35 are bent and extended from the base 32. The hook 31 extends from one side of the elastic portion 35. The base 32, the limit portion 33 and the elastic portion 35 are all located in the mounting hole 12, and the fixing portion 34 is inserted into the fixing hole 13 for fixing. The structure is simple and the installation is stable. In addition, a welding foot 36 is bent and extended from the base 32, and the welding foot 36 extends out of the insulating body 10 so as to be welded with an external circuit board to achieve reliable grounding. In addition, the hook 31 includes a limiting segment 311 and a hook portion 312. The limiting segment 311 is a bending structure. One end of the limiting segment 311 is integrally connected to one side of the elastic portion 35. The hook portion 312 is located at the other end of the limiting segment 311 and cooperates with the buckle hole 51. The structure is simple and easy to self-lock and unlock.

[0042] The side cover 40 is arranged on one side of the insulating body 10, and the side cover 40 can be flipped sideways relative to the insulating body 10. Both ends of the side cover 40 extend with a claw 41 for moving the hook 31 away from the buckle hole 51 to release the lock, and the claw 41 extends into the insertion cavity 11. In this embodiment, the side cover 40 is formed by stamping a metal plate, and has a simple structure and is easy to form. The aforementioned limiting section 311 cooperates with the claw 41 to reliably unlock. A pressing arm 42 is bent and extended from the side cover 40, and a limiting hole 401 is provided at the root of the pressing arm 42. The limiting portion 33 passes through the limiting hole 401 from bottom to top, and the tail end of the pressing arm 42 presses on the elastic portion 35, and the elastic portion 35 acts on the pressing arm 42 to cause the side cover 40 to reset. The structure is simple, the side cover 40 can automatically reset, and it is easy to use. In addition, elastic arms 43 for guiding the cable 50 and elastically pressing against the side of the cable 50 extend from both ends of the side cover 40. The elastic arms 43 extend into the insertion cavity 11 so that the cable 50 can be more firmly pressed against the contact portion 21, making the connection more reliable.

[0043] The method of using this embodiment is described in detail as follows:

[0044] When in use, place the product upright on the circuit board, so that each welding part 22 and welding foot 36 are welded and connected with the circuit board, then insert the head of the flat cable 50 from top to bottom into the insertion cavity 11. After being inserted into place, the hook part 312 of the hook 31 automatically snaps into the buckle hole 51 to achieve self-locking. At the same time, the elastic arm 43 presses on the flat cable 50, and each gold finger 52 on the flat cable 50 elastically contacts and conducts with the corresponding contact part 21. When it is necessary to pull out the flat cable 50, use your hand to act on the top of the side cover 40 to flip the side cover 40 outward. The claw 41 moves with the side cover 40 to drive the hook 31 to move sideways, so that the hook part 312 is separated from the buckle hole 51. At this time, the flat cable 50 can be pulled upward out of the insertion cavity 11.

[0045] The design focus of the utility model is that a hook is extended from the grounding plate, and the hook is locked with the buckle hole on the side of the end of the cable, and the side cover is arranged to be flipped laterally relative to the insulating body, and claws are extended from both ends of the side cover, and the claws are used to push the hook away from the buckle hole to release the lock, without the need to specially set a locking terminal and a push button, thereby reducing the number of parts, the structure is simple and compact, the production and assembly are convenient, the stability and reliability of the connection are improved, and it is convenient to use.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight 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 FPC plug-in self-locking connector, comprising an insulating body, a plurality of conductive terminals, two grounding plates and a side cover; the insulating body has an insertion cavity for inserting a flat cable; the plurality of conductive terminals are arranged on the insulating body, each conductive terminal has a contact portion and a welding portion, the contact portion extends into the insertion cavity to contact and conduct with the flat cable, and the welding portion extends out of the insulating body; the two grounding plates are respectively arranged inside the two ends of the insulating body; the side cover is arranged on one side of the insulating body; the characteristics are: Each grounding plate extends with a hook that locks with a buckle hole on the side of the end of the cable. The side cover can be flipped sideways relative to the insulating body. Both ends of the side cover extend with a claw for pushing the hook away from the buckle hole to release the lock, and the claw extends into the insertion cavity.

2. The FPC self-locking connector according to claim 1, characterized in that: The end of the insulating body is provided with a mounting hole and a fixing hole, the grounding plate includes a base, a limiting portion, a fixing portion and an elastic portion are bent and extended from the base, the hook extends from one side of the elastic portion, the base, the limiting portion and the elastic portion are all located in the mounting hole, and the fixing portion is inserted into the fixing hole and fixed.

3. The FPC self-locking connector according to claim 2, characterized in that: A pressing arm is bent and extended from the side cover, a limiting hole is provided at the root of the pressing arm, the limiting part passes through the limiting hole from bottom to top, and the tail end of the pressing arm presses on the elastic part, and the elastic part acts on the pressing arm to reset the side cover.

4. The FPC self-locking connector according to claim 2, characterized in that: A welding leg is bent and extended from the base, and the welding leg extends out of the insulation body.

5. The FPC self-locking connector according to claim 2, characterized in that: The hook comprises a limiting section and a hook portion, wherein the limiting section is a bent structure, one end of the limiting section is integrally connected to one side of the elastic portion, the limiting section cooperates with the push claw, and the hook portion is located at the other end of the limiting section and cooperates with the button hole.

6. The FPC self-locking connector according to claim 1, characterized in that: Elastic arms for guiding the cable and elastically pressing against the side surfaces of the cable extend from both ends of the side cover, and the elastic arms extend into the insertion cavity.

7. The FPC self-locking connector according to claim 1, characterized in that: The insulating body is provided with a plurality of terminal slots, each of which is laterally connected to the insertion cavity. The plurality of conductive terminals are respectively arranged and fixed in the corresponding terminal slots, and each contact portion respectively passes through the lateral opening of the terminal slot and extends into the insertion cavity.

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