Flexible circuit board electrical connector

Abstract

The present invention provides a flexible circuit board electrical connector, including an insulating body, a plurality of conductive terminals and a driving member, wherein the driving member is provided with a pressure plate portion and positioning portions located at both ends of the pressure plate portion, the conductive terminal is provided with an upper arm and a lower arm, the rear side of the pressure plate portion is provided with a plurality of through slots for accommodating the upper arm, a pivot shaft located in the through slots and a plurality of notches arranged alternately with the through slots; the top edge of the upper arm is provided with a recess for accommodating the pivot shaft, the notch is provided with a driving member, and the rear end of the driving member has an arc-shaped supporting portion for supporting the insulating body upward. Compared with the prior art, the flexible circuit board electrical connector of the present invention improves the design of the driving member, utilizes the interference fit between the driving member on the driving member and the insulating body, so that the pressure plate portion presses the upper arm of the conductive terminal down to the surface of the flexible circuit board, thereby completing the stable clamping of the flexible circuit board by the upper arm and the lower arm, and improving the connection stability and reliability between the electrical connector and the flexible circuit board.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors, and in particular to a flexible circuit board electrical connector. Background Art

[0002] With the development trend of notebooks, tablet computers, mobile phones and other consumer electronic products becoming smaller and thinner, the design and manufacturing process of their components are becoming more and more demanding. As the products become thinner and lighter, the internal space becomes very narrow, which requires that the internal layout of the product must be dense, and the various electronic parts must be closely arranged. This is bound to bring troubles to the design and installation of the product. The difficulty of assembling electronic products in a small space is significantly increased, and the manufacturing cost is also increased accordingly. It is also easy to cause damage to the product due to careless operation, and the requirements for operators are higher than before. For example, in the common flexible circuit board (FPC) electrical connector, in existing products, before the flexible circuit board (FPC) is inserted, the pressure cover plate needs to be opened first for the flexible circuit board to be inserted into it, and then the pressure cover plate is flipped down to press the flexible circuit board. At present, most flexible circuit boards are clamped from the top and bottom by two terminal arms of the terminals in the FPC electrical connector. However, when frequently plugged in and out or dragged by external forces, the connection stability between the flexible circuit board and the terminals is easily affected. Especially today when the size of electrical connectors is getting smaller and smaller, it is difficult for small-sized connectors to provide a strong clamping force for the flexible circuit board, and it is impossible to ensure a stable connection relationship between the electrical connector and the flexible circuit board.

[0003] Therefore, it is necessary to provide a flexible circuit board electrical connector to solve the above technical problems. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a flexible circuit board electrical connector to improve the stability and reliability of the connection relationship between the flexible circuit board and the connector.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a flexible circuit board electrical connector, comprising an insulating body, a plurality of conductive terminals and a driving member, the driving member is provided with a pressure plate portion and positioning portions located at both ends of the pressure plate portion, the conductive terminal is provided with an upper arm and a lower arm, the rear side of the pressure plate portion is provided with a plurality of through slots for accommodating the upper arms, a pivot shaft located in the through slots and a plurality of recesses arranged alternately with the through slots; a recess for accommodating the pivot shaft is provided at the top edge of the upper arm, a driving member is provided in the recess, and the rear end of the driving member has an arc-shaped supporting portion for supporting the insulating body upward.

[0006] Furthermore, the insulating body is provided with a base, arms at both ends of the base and a bottom plate extending from the base into between the two arms, the base is provided with an inclined portion cooperating with the pressure plate portion, and the inclined portion is provided with a plurality of protrusions protruding toward the recess.

[0007] Furthermore, the notches on the pressure plate portion and the protrusions on the base portion are arranged in a one-to-one correspondence, and the protrusions are located directly above the arc-shaped supporting portion to prevent the arc-shaped supporting portion from moving upward.

[0008] Furthermore, the driving portion has an inclined matching surface and a recessed surface connected between the matching surface and the arc-shaped supporting portion.

[0009] Furthermore, an insertion space for accommodating the flexible circuit board is formed between the base, the bottom plate and the two opposite arms, and the bottom plate is provided with a plurality of terminal slots, blocks at both ends of the plurality of terminal slots and a card slot located outside the block.

[0010] Furthermore, the driving member is provided with an end shaft protruding outward from the pressure plate portion, and the inner surface of the arm portion is provided with a snap portion cooperating with the positioning portion and a receiving portion for receiving the end shaft.

[0011] Furthermore, the flexible circuit board electrical connector also includes a limiter, and the arm portion is also provided with a notch for accommodating the limiter, and the limiter is located above the end shaft to prevent the end shaft from escaping from the accommodating portion.

[0012] Furthermore, the flexible circuit board electrical connector also includes a fixing member inserted into the card slot, the fixing member is provided with a horizontally arranged fixing arm, a fixing foot bent outwardly and extended from the bottom of the fixing arm, and a fixing portion bent inwardly and extended from the top of the fixing arm, and the fixing portion is an inverted U-shape.

[0013] Furthermore, the positioning portion is provided with a positioning groove matched with the fixing portion, and a raised locking portion is provided on the outer side of the positioning portion.

[0014] Compared with the prior art, the flexible circuit board electrical connector of the present invention improves the design of the driving member and utilizes the interference fit between the driving part on the driving member and the insulating body so that the pressure plate part presses the upper arm of the conductive terminal down to the surface of the flexible circuit board, thereby completing the stable clamping of the flexible circuit board by the upper arm and the lower arm, thereby improving the connection stability and reliability between the electrical connector and the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the flexible circuit board electrical connector of the present invention in an open state.

[0016] Figure 2 It is a cross-sectional view of the flexible circuit board electrical connector of the present invention in use.

[0017] Figure 3 It is a three-dimensional diagram of the flexible circuit board electrical connector of the present invention in a closed state.

[0018] Figure 4 The figure is an exploded view of the flexible circuit board electrical connector of the present invention.

[0019] Figure 5 It is a cross-sectional view of the flexible circuit board electrical connector of the present invention in an incompletely closed state. DETAILED DESCRIPTION

[0020] See also Figures 1 to 5 As shown, the present invention provides a flexible circuit board electrical connector 100, including an insulating body 10, a conductive terminal 20 received in the insulating body 10, a driving member 30 matched with the conductive terminal 20, and a fixing member 40 fixed at both ends of the insulating body 10.

[0021] Ginseng Figure 2 As shown, the insulating body 10 is provided with a base 11, arms 12 located at both ends of the base 11, and a bottom plate 13 extending from the base 11 into between the two arms 12. The arms 12 extend vertically from both ends of the base 11, and the bottom plate 13 extends from the bottom plate 13 of the base 11. An insertion space for accommodating the FPC flexible circuit board 200 is formed between the base 11, the bottom plate 13, and the two opposite arms 12. The base 11 is used to accommodate and position the conductive terminal 20, and the base 11 is provided with an inclined portion 110 on one side close to the insertion space, which is used to abut against the driving member 30. The inclined portion 110 is connected to the arm 12, and a plurality of protrusions 113 arranged at a certain interval are provided on the inclined portion 110, and the protrusions 113 protrude from the inclined portion 110 into the insertion space. The two arms 12 are arranged parallel to each other, and the FPC flexible circuit board 200 is inserted between them, and a recessed buckle portion 120 and a receiving portion 121 are provided on the inner surface of the arm 12. The bottom plate 13 is provided with a plurality of terminal slots 130, blocks 131 at both ends of the terminal slots 130, and a slot 132 outside the block 131. The block 131 is used to block the two sides of the FPC flexible circuit board 200 to achieve position limiting in the left and right directions, and the slot 132 is used to insert the fixing member 40.

[0022] Ginseng Figure 1 , Figure 2As shown, the driving member 30 is installed and matched with the insulating body 10 and the conductive terminal 20, and can be opened and closed by rotating. The driving member 30 is provided with a pressing plate portion 31 and positioning portions 32 located at both ends of the pressing plate portion 31. The pressing plate portion 31 is provided with an inner surface 33, an outer surface 34, a through groove 36 passing through the inner and outer surfaces, and a pivot shaft 35 disposed in the through groove 36. The inner surface 33 is used to cover the surface of the FPC flexible circuit board 200. The outer surface 34 is used to abut against the inclined portion 110 of the base 11 of the insulating body 10 in the open state, as shown in FIG. Figure 3 As shown, the outer surface 34 is provided with a plurality of notches 37 for accommodating the protrusions 113 on the base 11 of the insulating body 10. The notches 37 are rectangular and are distributed on the rear side of the pressing plate portion 31 at alternating intervals with the through slots 36. The positioning portion 32 is provided with a positioning groove 320 for cooperating with the fixing member 40. The outer side of the positioning portion 32 is provided with a raised locking portion 321 for clamping into the locking portion 120 of the arm portion 12, so that the driving member 30 is fixedly positioned with the insulating body 10 in the closed state, and the stability of the connection of the FPC flexible circuit board 200 is maintained. A pair of end shafts 38 protrude outward from both ends of the driving member 30. The end shafts 38 are located on one side of the positioning portion 32 and are accommodated in the accommodating portion 121 of the arm portion 12. In order to better fix the driving member 30 at both ends of the insulating body 10, the flexible circuit board electrical connector 100 of the present invention also includes a limit member 50, and the arm portion 12 is also provided with a notch 14 for accommodating the limit member 50. The limit member 50 is located above the end shaft 38 to prevent the end shaft 38 from escaping from the accommodating portion 121.

[0023] Ginseng Figure 2 The conductive terminal 20 is provided with an upper arm 21 and a lower arm 22 extending in the same direction, the upper arm 21 cooperates with the driving member 30, and the lower arm 22 is received in the terminal groove 130 on the bottom plate 13 of the insulating body 10, and is used to contact the FPC flexible circuit board 200, and the FPC flexible circuit board 200 is clamped between the upper arm 21 and the lower arm 22. Among them, the top edge of the upper arm 21 is provided with a recess 23 for accommodating the pivot shaft 35, so that the pivot shaft 35 can rotate in the recess 23, thereby helping the driving member 30 to complete the opening or closing operation.

[0024] The fixing member 40 is inserted into the slot 132 and is provided with a horizontally arranged fixing arm 41, a fixing foot 42 bent outwardly from the bottom of the fixing arm 41, and a fixing portion 43 bent inwardly from the top of the fixing arm 41. The fixing portion 43 is in an inverted U shape and cooperates with the positioning groove 320 of the positioning portion 32, so that the driving member 30 can be better positioned during the closing process through the cooperation of the two. The fixing arm 41 of the fixing member 40 is supported at both ends of the driving member 30.

[0025] The front end of the upper surface of the FPC flexible circuit board 200 is provided with a gold finger 201, which is inserted between the upper arm 21 and the lower arm 22 of the conductive terminal 20 and electrically contacts the upper arm 21 of the terminal. As can be seen from the above, the flexible circuit board electrical connector of the present invention electrically contacts the upper arm 21 of the terminal with the FPC flexible circuit board 200, so that the FPC flexible circuit board 200 can be directly inserted into the connector with the front side facing up, without the need to turn the FPC flexible circuit board 200 downward, thereby reducing the occupation of the operating space and improving the production efficiency.

[0026] After the driving member 30 is turned over and closed, it will press down the FPC flexible circuit board 200, and at the same time, with the help of the mutual snap fit between the positioning portion 32 and the snap portion 120, the upper arm 21 of the terminal is forced to press on the gold finger 201 of the FPC flexible circuit board 200 under the downward pressure of the pivot shaft 35. Of course, in order to make the driving member 30 press the FPC flexible circuit board 200 better and more tightly to prevent poor contact due to external pulling, the pressing plate portion 31 of the present invention is also provided with a driving portion 39 that interferes with the protrusion 113, such as Figure 5As shown, the driving portion 39 is located in the recess 37, and the driving portion 39 has an inclined mating surface 390, and an arc-shaped supporting portion 391 is formed at the end of the mating surface 390, and the arc-shaped supporting portion 391 is connected to the mating surface 390 through a recessed surface 392, and the arc-shaped supporting portion 391 is used to support the bottom surface 114 of the protrusion 113 upward. Since the driving portion 39 is located at the rear side of the pressure plate portion 31, during the process of the front side of the pressure plate portion 31 being flipped down and closed, the rear side of the pressure plate portion 31 will be flipped up, so that the arc-shaped supporting portion 391 of the driving portion 39 will be pushed upward under the protrusion 113, thereby hindering the downward flipping operation of the pressure plate portion 31, but at this time, the pressure plate portion 31 is not completely flipped down to the final closed position, and the FPC flexible circuit board 200 is not completely pressed or clamped by the pressure plate portion 31. It is necessary to continue to press down the pressure plate portion 31. Since the driving portion 39 is blocked by the protrusion 113 and cannot move, the continued downward pressure will force the pressure plate portion 31 to press the upper arm 21 of the conductive terminal 20, that is, the pivot shaft 35 will press down the upper arm 21 of the conductive terminal 20 as the pressure plate portion 31 continues to be pressed down, so that the upper arm 21 is pressed downward on the gold finger 201 on the surface of the FPC flexible circuit board 200. At the same time, the locking portion 321 will be clamped in the clamping portion 120, fix the driving member 30 on the insulating body 10, and keep the FPC flexible circuit board 200 clamped.

[0027] The above is only the best embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the method disclosed above without departing from the scope of the technical solution of the present invention, which all fall within the scope of protection of the claims.

Claims

1. A flexible circuit board electrical connector, comprising an insulating body, a plurality of conductive terminals and a driving member, wherein the driving member is provided with a pressing plate portion and positioning portions located at both ends of the pressing plate portion, and the conductive terminal is provided with an upper arm and a lower arm, characterized in that: The rear side of the pressing plate portion is provided with a plurality of through slots for accommodating the upper arm, a pivot shaft located in the through slots, and a plurality of notches arranged alternately with the through slots; the top edge of the upper arm is provided with a notch for accommodating the pivot shaft, a driving portion is provided in the notch, and the rear end of the driving portion has an arc-shaped supporting portion for supporting the insulating body upwards; The insulating body is provided with a base, arms at both ends of the base, and a bottom plate extending from the base into between the two arms, the base is provided with an inclined portion cooperating with the pressing plate portion, and the inclined portion is provided with a plurality of protrusions protruding toward the recess; The notches on the pressing plate portion are arranged in one-to-one correspondence with the protrusions on the base portion, and the protrusions are located directly above the arc-shaped top holding portion to prevent the arc-shaped top holding portion from moving upward; The driving portion has an inclined mating surface and a concave surface connected between the mating surface and the arc-shaped supporting portion; An insertion space for accommodating the flexible circuit board is formed between the base, the bottom plate and the two opposite arms, the bottom plate is provided with a plurality of terminal slots, blocks located at both ends of the plurality of terminal slots and a card slot located outside the block, the flexible circuit board electrical connector also includes a fixing member inserted into the card slot; the block is used to resist the two sides of the flexible circuit board to achieve position limiting in the left and right directions, and the card slot is used for inserting the fixing member; The driving member is provided with an end shaft protruding outward from the pressing plate portion, and the inner surface of the arm portion is provided with a buckle portion matched with the positioning portion and a receiving portion for receiving the end shaft.

2. The flexible circuit board electrical connector according to claim 1, characterized in that: The flexible circuit board electrical connector also includes a limiting member, and the arm portion is also provided with a notch for accommodating the limiting member. The limiting member is located above the end shaft to prevent the end shaft from escaping from the accommodating portion.

3. The flexible circuit board electrical connector according to claim 2, characterized in that: The fixing member is provided with a horizontally arranged fixing arm, a fixing foot bent outwardly and extended from the bottom of the fixing arm, and a fixing portion bent inwardly and extended from the top of the fixing arm, and the fixing portion is in an inverted U shape.

4. The flexible circuit board electrical connector according to claim 3, characterized in that: The positioning portion is provided with a positioning groove matched with the fixing portion, and a protruding locking portion is provided on the outer side of the positioning portion.

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