A front-flap type FPC connector

Abstract

The utility model relates to a front cover type FPC connector, including insulating base, terminal and cover, the insulating base is seted up with the plug groove, a plurality of terminal go into the plug groove, the cover rotation is arranged on the insulating base, the cover is formed with a plurality of pressure rod corresponding to a plurality of terminal, the pressure rod end part is provided with the spherical contact head of the pressure rod axial sliding, the pressure rod is provided with the compensation spring acting on the contact head. This front cover type FPC connector, guaranteeing that the FPC is pressed and the terminal realizes the electric connection at the same time, make the pressure that FPC receives more uniform, prevent the stress concentration on FPC and damage the golden finger.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a front-opening FPC connector. Background Technology

[0002] FPC connectors are accessories used to connect flexible printed circuit boards (FPCs). Existing FPC connectors have various locking structures, such as drawer type, rear-hinged type, and front-hinged type. Among them, the front-hinged type FPC connector achieves electrical connection between the gold fingers of the FPC and the terminals by rotating the cover located on one side of the insertion slot of the insulating base to press the FPC into the insertion slot. However, when the cover of the existing front-hinged type FPC connector is pressing the FPC, the FPC has a certain thickness fluctuation, which will cause uneven pressure distribution on the FPC. The stress concentration caused by uneven pressure distribution can damage the gold fingers.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This invention proposes a front-opening FPC connector, which solves the aforementioned problems existing in the prior art during use.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A front-flip FPC connector includes an insulating base, terminals, and a flip cover. The insulating base has insertion slots, and a plurality of terminals are inserted into the insertion slots. The flip cover is rotatably mounted on the insulating base. A plurality of pressure rods corresponding one-to-one with the terminals are formed on the flip cover. The ends of the pressure rods are provided with spherical contact heads that can slide along the axial direction of the pressure rods. A compensating spring acting on the contact head is provided inside the pressure rods.

[0007] Preferably, the pressure rod has a blind hole that extends through the pressure rod along its axial direction, and a floating column matching the blind hole passes through the blind hole. The compensating spring is fixedly mounted on the bottom wall of the blind hole, one end of the floating column is fixedly connected to the compensating spring, and the contact head is connected to the other end of the floating column.

[0008] Preferably, the end of the floating column is formed with a connecting ball head, and the contact head is formed with a ball head socket that matches the connecting ball head. The connecting ball head is inserted into the ball head socket to realize the connection between the contact head and the floating column.

[0009] Preferably, the contact head is covered with a rubber layer.

[0010] Preferably, the compensation spring is a wave spring.

[0011] Preferably, a rotating shaft is formed on each of the two sides of the front end of the cover, and two rotating cavities matching the rotating shaft are formed on the insulating base. The rotating shaft is placed in the rotating cavity to realize the rotational connection between the cover and the insulating base. A snap-fit ​​block is formed on each of the two sides of the rear end of the cover. The snap-fit ​​block can be snapped onto the rear end face of the insulating base as the cover rotates.

[0012] Preferably, a limiting groove is formed on each of the two side walls of the insertion slot, a limiting protrusion is formed on each of the two sides of the flip cover, the snap-fit ​​block is snapped onto the rear end face of the insulating base, and the limiting protrusion is snapped into the limiting groove.

[0013] Preferably, a first magnet is embedded on the rear end face of the insulating base, and a second magnet is embedded on the front end face of the snap-fit ​​block. When the snap-fit ​​block is snapped onto the rear end face of the insulating base, the first magnet and the second magnet attract each other.

[0014] In summary, the beneficial effects of this utility model are as follows: by using a compensating spring in conjunction with the contact head to move along the axial direction of the pressure rod on the pressure rod, and thus along the direction of the pressure acting on the FPC, the thickness fluctuation of the FPC is compensated. While ensuring that the FPC is pressed and electrically connected to the terminal, the pressure on the FPC is made more uniform, preventing stress concentration on the FPC from damaging the gold fingers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the hinged cover in this utility model.

[0021] In the diagram: 1. Insulating base; 11. Insertion slot; 12. Rotating cavity; 13. Limiting slot; 14. First magnet; 2. Terminal; 3. Cover; 31. Pressure rod; 311. Blind hole; 32. Contact head; 321. Ball head socket; 33. Compensating spring; 34. Floating column; 341. Connecting ball head; 35. Rubber layer; 36. Rotating shaft; 37. Snap-fit ​​block; 38. Limiting protrusion; 39. Second magnet. Detailed Implementation

[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] As shown in the figure, a front-flip-cover type 3 FPC connector includes an insulating base 1, terminals 2 and a flip cover 3. The insulating base 1 has a insertion groove 11, and several terminals 2 are inserted into the insertion groove 11. The flip cover 3 is rotatably mounted on the insulating base 1. Several pressure rods 31 are formed on the flip cover 3, each corresponding to one of the terminals 2. The end of each pressure rod 31 is provided with a spherical contact head 32 that can slide along the axial direction of the pressure rod 31. A compensating spring 33 is provided inside the pressure rod 31 and acts on the contact head 32.

[0024] Specifically, the contact head 32 is slidably disposed on the pressure rod 31: a blind hole 311 is opened in the pressure rod 31 and passes through the pressure rod 31 axially; a floating column 34 matching the blind hole 311 passes through the blind hole 311; the compensating spring 33 is fixedly disposed on the bottom wall of the blind hole 311 by bonding; one end of the floating column 34 is fixedly connected to the compensating spring 33 by bonding; and the contact head 32 is connected to the other end of the floating column 34.

[0025] Specifically, the structure for locking the cover 3 to the insulating base 1 is as follows: a rotating shaft 36 is formed on each of the two front ends of the cover 3, and two rotating cavities 12 matching the rotating shafts 36 are formed on the insulating base 1. The rotating shafts 36 are placed in the rotating cavities 12 to realize the rotational connection between the cover 3 and the insulating base 1. A snap-fit ​​block 37 is formed on each of the two rear ends of the cover 3. The snap-fit ​​block 37 can be snapped onto the rear end face of the insulating base 1 as the cover 3 rotates.

[0026] Specifically, the compensation spring 33 is a wave spring.

[0027] In the above structure, when the FPC is connected to the FPC connector, the gold fingers of the FPC are inserted into the insertion slot 11, so that each gold finger of the FPC corresponds to a terminal 2. The cover 3 is swung towards the FPC, which causes the pressure rod 31 and the contact head 32 slidably disposed thereon to swing towards the FPC, so that the contact head 32 abuts against the FPC. During the process of the contact head 32 abutting against the FPC and pressing the FPC into the insertion slot 11, thus achieving electrical connection between the gold fingers of the FPC and the terminal 2, the floating column 34 and the compensating spring 33 on the pressure rod 31, which corresponds to the terminal 2, cooperate to achieve electrical connection through the floating column 34. The sliding motion within the blind hole 311 causes several contact heads 32 to float along the pressure rod 31 according to the thickness fluctuation of the FPC, thus causing them to float in the direction of the pressure applied to the FPC. This ensures that the FPC is pressed tightly and electrically connected to the terminal 2, while also making the pressure on the FPC more uniform and preventing stress concentration on the FPC from damaging the gold fingers. While the contact head 32 is in contact with the FPC, the locking block 37 is locked onto the rear end face of the insulating base 1 as the cover 3 swings, limiting the swing of the cover 3 and locking the cover 3 to the insulating base 1. This ensures that the contact head 32 stably presses the FPC into the insertion slot 11 and connects it to the terminal 2.

[0028] Furthermore, based on the above structure, a connecting ball head 341 is formed at the end of the floating column 34, and a ball head socket 321 matching the connecting ball head 341 is formed in the contact head 32. The connecting ball head 341 is inserted into the ball head socket 321 to realize the connection between the contact head 32 and the floating column 34. Under vibration conditions, when the contact head 32 is subjected to horizontal vibration, the contact head 32 and the floating column 34 generate a slight swing through the cooperation of the connecting ball head 341 and the ball head socket 321. At the same time, the high-frequency extension and contraction of the compensation spring 33 compensates for the displacement, so that the contact head 32 is more stably in contact with the FPC under vibration conditions, reducing the contact resistance fluctuation between the terminal 2 and the FPC under vibration conditions.

[0029] In addition, based on the above structure, the contact head 32 is covered with a rubber layer 35. The rubber layer 35 makes the contact head 32 make elastic contact when it comes into contact with the FPC. The deformation of the rubber layer 35 fills the micro-unevenness of the FPC surface, increases the contact area between the contact head 32 and the FPC and strengthens the friction between the contact head 32 and the FPC, thus preventing the contact head 32 from sliding between the contact head 32 and the FPC under vibration conditions.

[0030] Furthermore, based on the above structure, a limiting groove 13 is formed on each of the two side walls of the insertion slot 11, and a limiting protrusion 38 is formed on each side of the flip cover 3. The snap-fit ​​block 37 is snapped onto the rear end face of the insulating base 1, and the limiting protrusion 38 is snapped into the limiting groove 13. The cooperation between the limiting protrusion 38 and the limiting groove 13 limits the swing of the flip cover 3 relative to the insulating base 1, strengthens the locking strength between the flip cover 3 and the insulating base 1, and makes this front flip cover type FPC connector have better vibration resistance.

[0031] Furthermore, based on the above structure, a first magnet 14 is embedded on the rear end face of the insulating base 1, and a second magnet 39 is embedded on the front end face of the snap-fit ​​block 37. When the snap-fit ​​block 37 is snapped onto the rear end face of the insulating base 1, the first magnet 14 and the second magnet 39 are attracted together. The force generated by the attraction between the first magnet 14 and the second magnet 39 strengthens the locking strength between the flip cover 3 and the insulating base 1, giving this front flip cover type FPC connector better vibration resistance.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front-hinged FPC connector, comprising an insulating base (1), terminals (2), and a hinged cover (3), wherein the insulating base (1) has a insertion groove (11), and a plurality of terminals (2) are inserted into the insertion groove (11), and the hinged cover (3) is rotatably mounted on the insulating base (1), characterized in that: The cover (3) has a plurality of pressure rods (31) that correspond one-to-one with a plurality of terminals (2). The end of the pressure rod (31) is provided with a spherical contact head (32) that can slide along the axial direction of the pressure rod (31). A compensating spring (33) that acts on the contact head (32) is provided inside the pressure rod (31).

2. The front-opening FPC connector according to claim 1, characterized in that: The pressure rod (31) has a blind hole (311) that runs through the pressure rod (31) along its axial direction. A floating column (34) matching the blind hole (311) passes through the blind hole (311). The compensating spring (33) is fixedly installed on the bottom wall of the blind hole (311). One end of the floating column (34) is fixedly connected to the compensating spring (33), and the contact head (32) is connected to the other end of the floating column (34).

3. The front-opening FPC connector according to claim 2, characterized in that: The floating column (34) has a connecting ball head (341) at its end, and the contact head (32) has a ball head socket (321) that matches the connecting ball head (341). The connecting ball head (341) is inserted into the ball head socket (321) to achieve the connection between the contact head (32) and the floating column (34).

4. The front-opening FPC connector according to claim 3, characterized in that: The contact head (32) is covered with a rubber layer (35).

5. The front-opening FPC connector according to claim 4, characterized in that: The compensation spring (33) is a wave spring.

6. The front-opening FPC connector according to claim 5, characterized in that: A rotating shaft (36) is formed on each of the two front sides of the cover (3). Two rotating cavities (12) matching the rotating shaft (36) are formed on the insulating base (1). The rotating shaft (36) is placed in the rotating cavity (12) to realize the rotational connection between the cover (3) and the insulating base (1). A snap-fit ​​block (37) is formed on each of the two rear sides of the cover (3). The snap-fit ​​block (37) can be snapped onto the rear end face of the insulating base (1) as the cover (3) rotates.

7. The front-opening FPC connector according to claim 6, characterized in that: A limiting groove (13) is formed on each side wall of the plug groove (11), and a limiting protrusion (38) is formed on each side of the flip cover (3). The snap block (37) is snapped on the rear end face of the insulating base (1), and the limiting protrusion (38) is snapped into the limiting groove (13).

8. The front-opening FPC connector according to claim 7, characterized in that: The first magnet (14) is embedded on the rear end face of the insulating base (1), and the second magnet (39) is embedded on the front end face of the snap-fit ​​block (37). When the snap-fit ​​block (37) is snapped on the rear end face of the insulating base (1), the first magnet (14) and the second magnet (39) attract each other.

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