阅读说明：本技术 一种具有侧压解锁功能的fpc连接器 (FPC connector with side pressure unblock function ) 是由 郑鹏飞 何志刚 陈进嵩 于 2019-12-06 设计创作，主要内容包括：本发明涉及了一种具有侧压解锁功能的FPC连接器,包括FFC排线、绝缘胶座、外壳体以及接线端子。外壳体包括顶板、底板、连接板、左侧板以及右侧板。连接板连接于顶板和底板之间。由顶板向下延伸出有插接限位臂,用来实现FFC排线的钩挂限位。由左侧板的侧壁向右延伸出有左侧压臂,其包括左连接过渡部和左顶靠凸起部。左顶靠凸起部由左连接过渡部的自由端向上延伸而成。由右侧板的侧壁向左延伸出有右侧压臂,其包括右连接过渡部和右顶靠凸起部。右顶靠凸起部由右连接过渡部的自由端向上延伸而成。这样一来,从而有效地防止FPC连接器受到压损情况的发生。更为重要的是,还有效地减小了FPC连接器的厚度尺寸。(The invention relates to an FPC connector with a side pressure unlocking function, which comprises an FFC flat cable, an insulating rubber seat, an outer shell and a wiring terminal. The shell body comprises a top plate, a bottom plate, a connecting plate, a left side plate and a right side plate. The connecting plate is connected between the top plate and the bottom plate. An inserting limit arm is extended downwards from the top plate and used for realizing the hooking limit of the FFC flat cable. A left side pressing arm extends rightwards from the side wall of the left side plate and comprises a left connecting transition part and a left abutting convex part. The left abutting convex part is formed by upward extending the free end of the left connecting transition part. A right side pressing arm extends leftwards from the side wall of the right side plate and comprises a right connecting transition part and a right abutting convex part. The right top leaning convex part is formed by extending the free end of the right connecting transition part upwards. Thus, the FPC connector is effectively prevented from being damaged by pressure. More importantly, the thickness dimension of the FPC connector is effectively reduced.)

1. A FPC connector with a side pressure unlocking function comprises an FFC flat cable, an insulating rubber seat, an outer shell and a wiring terminal; an FFC flat cable inserting groove is formed in the insulating rubber seat and used for inserting the FFC flat cable; a series of terminal insertion grooves are uniformly distributed along the length direction of the FFC flat cable insertion groove and used for inserting and fixing the wiring terminal, and the FFC flat cable insertion groove is characterized in that the outer shell comprises a top plate, a bottom plate, a connecting plate, a left side plate and a right side plate; the connecting plate is connected between the top plate and the bottom plate; an inserting limiting arm extends downwards from the top plate, and correspondingly, an inserting limiting groove matched with the inserting limiting arm is formed in the FFC flat cable; a left side pressing arm extends rightwards from the side wall of the left side plate and comprises a left connecting transition part and a left abutting convex part; the left abutting convex part is formed by upward extending of the free end of the left connecting transition part, and a left guide inclined plane is arranged on the left abutting convex part; a right side pressing arm extends leftwards from the side wall of the right side plate and comprises a right connecting transition part and a right abutting convex part; the right top leaning bulge is formed by upward extending the free end of the right connecting transition part and is provided with a right guide inclined plane.

2. The FPC connector with side pressure unlocking function according to claim 1, wherein a left guide inclined surface is provided on the left abutting convex portion just corresponding to the left side wall of the top plate; and a right guide inclined surface is arranged on the right abutting convex part and right corresponds to the right side wall of the top plate.

3. The FPC connector having a side pressure unlocking function according to claim 2, wherein the left guide inclined surface and the right guide inclined surface are inclined at an angle α < 45 ° with respect to a horizontal plane.

4. The FPC connector with the side pressure unlocking function according to claim 3, wherein a left cylindrical raised portion extends downwards along the bottom wall of the top plate corresponding to the position of the left abutting convex portion; and the left columnar heightening part is tangent to the left side wall of the top plate; a right columnar heightening part extends downwards along the bottom wall of the top plate and corresponds to the position of the right jacking convex part; and the right columnar heightening part is tangent to the right side wall of the top plate.

5. The FPC connector with side pressure unlocking function according to claim 1, wherein the number of the left abutting convex parts is at least 2, and the left abutting convex parts are linearly arrayed along the width direction of the left connecting transition part; the number of the right abutting convex parts is at least 2, and the right abutting convex parts are linearly arrayed along the width direction of the right connecting transition part.

6. The FPC connector with a side pressure unlocking function according to claim 1, wherein the left side plate and the right side plate are both formed by extending the top plate; or the left side plate and the right side plate are formed by extending the bottom plate; or the left side plate and the right side plate are formed by extending the connecting plate.

7. The FPC connector with side pressure unlocking function according to any of claims 1 to 6, wherein the left side plate includes a left slip prevention portion; the left anti-slip part is formed by bending the free end of the left side plate rightwards, and correspondingly, a left anti-slip groove matched with the left anti-slip part is formed in the left side wall of the insulating rubber seat; the right side plate comprises a right anti-slip part; the right anti-slip part is formed by bending the free end of the right side plate leftwards, and correspondingly, a right anti-slip groove matched with the right anti-slip part is formed in the right side wall of the insulating rubber seat.

8. The FPC connector with the side pressure unlocking function according to claim 7, wherein a left scratch-proof transition portion is provided on the left anti-slip portion just corresponding to the left anti-slip groove; the left anti-scraping transition part is formed by bending the free end of the left anti-slip part in an arc shape; a right anti-scraping transition part is arranged on the right anti-slip part and right corresponding to the right anti-slip groove; and the right anti-scraping transition part is formed by bending the free end arc of the right anti-slipping part.

9. The FPC connector with the side pressure unlocking function according to claim 7, wherein a tapered transition is arranged on each front side wall of the plugging limiting arm; the inclined direction of the bevel transition is consistent with the insertion direction of the FFC flat cable.

Technical Field

The invention relates to the technical field of flexible flat cable FPC connector manufacturing, in particular to an FPC connector with a side pressure unlocking function.

Background

A Flexible Flat Cable (FFC) is a signal transmission component, which has the advantages of being able to be bent at will and high in signal transmission, and thus is widely used in many electronic products. The flexible flat cable is used in combination with the electronic connector by means of the FPC connector to transmit signals from one end to the other end, so that the purpose of signal transmission is achieved. The method is generally applied to the fields of various digital communication products, portable electronic products, computer peripheral equipment, measuring instruments, automobile electronics and the like.

Currently, most of the FPC connectors on the market adopt a press type structure, for example, chinese patent CN209641890U discloses an elastic press type FPC connector, which mainly comprises several parts, such as an insulating rubber seat, an outer housing, and a connection terminal (as shown in fig. 1). Wherein, the shell body includes roof, bottom plate and C shape elastic connecting plate. A left connecting arm and a right connecting arm extend upwards from the left end and the right end of the bottom plate. And a left U-shaped clamping arm and a right U-shaped clamping arm extend downwards along the left end part and the right end part of the top plate, and clamping bulges are arranged at the free ends of the left U-shaped clamping arm and the right U-shaped clamping arm and are matched with the mounting groove of the FFC flat cable. The top surface of the insulating rubber seat extends upwards to form a rotary supporting bulge which is always propped against the bottom surface of the top plate. When the front end of the top plate is pressed, the top plate rotates around the rotating support protrusion, and the FFC flat cable is unlocked. However, in the process of mounting and dismounting the FFC cable, a force is applied to the top plate, and when the pressing force is large or the force is unbalanced, the outer housing is easily deformed by pressure, which affects the functional stability of the FPC connector. In addition, in order to ensure the smooth proceeding of the elastic pressing process, a certain spacing distance needs to be ensured between the outer shell and the insulating rubber seat, so that the overall thickness dimension of the FPC connector is increased, and the layout and design of the assembly space of the FPC connector are not facilitated. Thus, a skilled person is urgently needed to solve the above problems.

Disclosure of Invention

The invention aims to solve the technical problem of providing an FPC connector which is simple in structural design, convenient for installation and disassembly of FFC flat cables and capable of avoiding pressure loss of the FPC connector and has a side pressure unlocking function.

In order to solve the technical problem, the invention relates to an FPC connector with a side pressure unlocking function, which comprises an FFC flat cable, an insulating rubber seat, an outer shell and a wiring terminal. An FFC flat cable plugging groove is arranged in the insulating rubber seat and used for plugging the FFC flat cable. A series of terminal insertion grooves are uniformly distributed along the length direction of the FFC flat cable insertion groove and used for inserting and fixing the wiring terminals. The shell body comprises a top plate, a bottom plate, a connecting plate, a left side plate and a right side plate. The connecting plate is connected between the top plate and the bottom plate. An inserting limit arm extends downwards from the top plate, and correspondingly, an inserting limit groove matched with the inserting limit arm is formed in the FFC flat cable. A left side pressing arm extends rightwards from the side wall of the left side plate and comprises a left connecting transition part and a left abutting convex part. The left top leaning convex part is formed by upward extending the free end of the left connecting transition part and is provided with a left guide inclined plane. A right side pressing arm extends leftwards from the side wall of the right side plate and comprises a right connecting transition part and a right abutting convex part. The right top leaning convex part is formed by upward extending the free end of the right connecting transition part and is provided with a right guide inclined plane.

As a further improvement of the technical scheme of the invention, a left guide inclined plane is arranged on the left side wall of the left abutting convex part and right corresponding to the top plate. And a right guide inclined surface is arranged on the right top leaning convex part and right corresponding to the right side wall of the top plate.

As a further improvement of the technical proposal of the invention, the inclination angle α of the left guide inclined plane and the right guide inclined plane relative to the horizontal plane is less than 45 degrees.

As a further improvement of the technical scheme of the invention, a left column-shaped heightening part extends downwards along the bottom wall of the top plate corresponding to the position of the left propping convex part. And the left columnar heightening part is tangent to the left side wall of the top plate. A right columnar heightening part extends downwards along the bottom wall of the top plate just corresponding to the position of the right top leaning against the convex part. And the right columnar heightening part is tangent to the right side wall of the top plate.

As a further improvement of the technical scheme of the invention, the number of the left abutting convex parts is at least 2, and the left abutting convex parts are linearly arrayed along the width direction of the left connecting transition part. The number of the right abutting convex parts is at least 2, and the right abutting convex parts are linearly arrayed along the width direction of the right connecting transition part.

As a further improvement of the technical scheme of the invention, the left side plate and the right side plate are both formed by extending a top plate; or the left side plate and the right side plate are formed by extending the bottom plate; and or the left side plate and the right side plate are formed by extending connecting plates.

As a further improvement of the technical solution of the present invention, the left side plate includes a left anti-slip portion. The left anti-slip part is formed by bending the free end of the left side plate rightwards, and correspondingly, a left anti-slip groove matched with the left anti-slip part is formed in the left side wall of the insulating rubber seat. The right side plate includes a right anti-slip portion. The right anti-slip part is formed by bending the free end of the right side plate leftwards, and correspondingly, a right anti-slip groove matched with the right anti-slip part is formed in the right side wall of the insulating rubber seat.

As a further improvement of the technical scheme of the invention, a left scraping-preventing transition part is arranged on the left anti-slip part and right corresponding to the left anti-slip groove. The left anti-scraping transition part is formed by bending the free end arc of the left anti-slipping part. And a right scraping-preventing transition part is arranged on the right anti-slip part and right corresponding to the right anti-slip groove. The right scratch-resistant transition part is formed by bending the free end arc of the right anti-slip part.

As a further improvement of the technical scheme of the invention, the front side walls of the plugging limiting arms are provided with bevel transitions. The inclined direction of the bevel transition is consistent with the insertion direction of the FFC flat cable.

Compared with the traditional FPC connector with the unlocking function pressed from top to bottom, in the technical scheme disclosed by the invention, the FFC flat cable can be unlocked in a side pressing mode. When operating personnel from left and right side shell body simultaneously, drive left side pressure arm and right side pressure arm promptly and carry out the displacement in opposite directions, and then lean on the bellying respectively with the help of the left top on it, the bellying is leaned on the right top and the lifting to the roof, meanwhile, set up the spacing arm of grafting on the roof and break away from out the spacing recess of grafting on the FFC winding displacement gradually, accomplished the unblock operation of FFC winding displacement promptly. Therefore, the FPC connector is effectively prevented from being damaged by pressure, and the stability of the product function is ensured; more importantly, the outer shell can be directly attached and fixed on the upper surface of the insulating rubber seat without reserving a movable space, so that the thickness size of the FPC connector is effectively reduced, and the arrangement and design of an assembly space of the FPC connector in a later period are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a prior art FPC connector.

Fig. 2 is a perspective view of the FPC connector with side pressure unlocking function according to the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a schematic perspective view of the outer housing of the FPC connector with side pressure unlocking function according to the present invention.

Fig. 6 is an enlarged view of part I of fig. 5.

Fig. 7 is an enlarged view of I I of fig. 5.

Fig. 8 is a front view of fig. 5.

Fig. 9 is an enlarged partial view of ii I of fig. 8.

Fig. 10 is an enlarged view of a portion IV of fig. 8.

Fig. 11 is a top view of fig. 8.

Fig. 12 is a schematic perspective view of an insulating rubber base in the FPC connector with a side pressure unlocking function according to the present invention.

1-FFC flat cable; 11-inserting limit grooves; 2-an insulating rubber base; 21-FFC flat cable splicing groove; 211-terminal plug grooves; 22-left anti-slip groove; 23-right anti-slip groove; 3-an outer shell; 31-a top plate; 311-plug limiting arm; 3111-beveling the transition; 312-left columnar elevation; 313-right columnar elevation; 32-a bottom plate; 33-a connecting plate; 34-left side plate; 341-left press arm; 3411-left connection transition; 3412-left abutment boss; 34121-left guide inclined surface; 342-left anti-slip portion; 3421-left anti-scrape transition; 35-right side panel; 351-right press arm; 3511-right connection transition; 3512-right top against boss; 35121-right guide inclined plane; 352-right anti-slip; 3521-right scratch transition; 4-a connecting terminal.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the following embodiments, and fig. 2 and 3 respectively show a perspective view and a top view of the FPC connector with the side pressure unlocking function according to the present invention, and it can be seen that the FPC connector mainly comprises an FFC bus bar 1, an insulating rubber base 2, an outer housing 3, and a connection terminal 4. Wherein, an FFC flat cable plugging groove 21 is arranged in the insulating rubber base 2 and is used for plugging the FFC flat cable 1. A series of terminal insertion grooves 211 are uniformly distributed along the length direction of the FFC bus bar insertion groove 21 for inserting and fixing the connection terminal 4. It is to be noted that, as shown in fig. 5, the outer case 3 includes a top plate 31, a bottom plate 32, a connecting plate 33, a left side plate 34, and a right side plate 35. The connection plate 33 is connected between the top plate 31 and the bottom plate 32. The left side plate 34 and the right side plate 35 are each formed by extending the connecting plate 33. An insertion limiting arm 311 extends downward from the top plate 31, and correspondingly, an insertion limiting groove 11 (as shown in fig. 4) adapted to the insertion limiting arm 311 is formed on the FFC flat cable 1. The number of the insertion limiting arms 311 is set to be at least 2, and is symmetrically distributed along the length direction of the top plate 31 (as shown in fig. 8). Extending rightwardly from the side wall of the left side plate 34 is a left press arm 341 which includes a left connecting transition 3411 and a left abutment projection 3412. The left abutment projection 3412 extends upward from the free end of the left connecting transition 3411. Extending leftward from the sidewall of the right side plate 35 is a right pressing arm 351, which includes a right connecting transition portion 3511 and a right abutting protrusion 3512. The right leaning boss 3512 is formed by extending the free end of the right connecting transition portion 3511 upwards. Therefore, the FPC connector is effectively prevented from being damaged by pressure in the process of disassembling the FFC flat cable, and the stability of the product function is ensured; more importantly, the outer shell 3 can be directly attached and fixed on the upper surface of the insulating rubber base 2 without reserving a movable space, so that the thickness size of the FPC connector is effectively reduced, and the arrangement and design of the assembly space of the FPC connector in the later period are facilitated.

The action principle of the FPC connector with the side pressure unlocking function is as follows: when an operator moves the left side plate 34 and the right side plate 35 of the outer housing 3 from the left side surface and the right side surface simultaneously, the left pressing arm 341 and the right pressing arm 351 are driven to move oppositely, and then the top plate 31 is lifted by the aid of the left abutting convex part 3412 and the right abutting convex part 3512 on the left pressing arm and the right pressing arm, and meanwhile, the inserting limiting arm 311 arranged on the top plate 31 is gradually separated from the inserting limiting groove 11 on the FFC flat cable 1, and the unlocking operation of the FFC flat cable is completed.

It should be noted that, in addition to the connection plate 33 in the above-mentioned technical solutions, the left side plate 34 and the right side plate 35 may also be extended from the top plate 31 or the bottom plate 32 (not shown in the figures) according to the circumstances.

In order to prevent the left abutting protrusion 3412 and the right abutting protrusion 3512 from being blocked by the top plate 31 when the left abutting protrusion 3412 and the right abutting protrusion 3512 move toward each other, a left guide inclined surface 34121 and a right guide inclined surface 35121 (as shown in fig. 6 and 7) may be provided on the left abutting protrusion 3412 and the right abutting protrusion 3512, respectively.

Furthermore, a left column-shaped raised portion 312 may extend downward along the bottom wall of the top plate 31 just corresponding to the position of the left abutting protrusion 3412. And the left column elevation 312 is tangent to the left sidewall of the top plate 31 (as shown in fig. 8, 9). A right cylindrical raised portion 313 extends downward along the bottom wall of the top plate 31 just corresponding to the position of the right abutting protrusion 3512. And the right column elevation 313 is tangent to the right sidewall of the top plate 31 (as shown in fig. 8, 10). In this way, on the one hand, the existence of the left column-shaped raised part 312 and the right column-shaped raised part 313 can improve the smoothness of the opposite movement of the left abutting convex part 3412 and the right abutting convex part 3512 relative to the top plate 31 to a certain extent, and ensure the smooth execution of the FFC flat cable unlocking operation; on the other hand, on the premise of reducing the thickness of the top plate 31 itself, the large distance lift of the top plate 31 can be achieved by performing a small displacement motion on the left abutting protrusion 3412 and the right abutting protrusion 3512.

Further, as a further refinement of the design structure, the number of the left abutment protrusions 3412 is at least 2, and is linearly arrayed along the width direction of the left connecting transition portion 3411 (as shown in fig. 6). The right abutment protrusions 3512 are at least 2 in number and are linearly arrayed along the width direction of the right connecting transition portion 3511 (as shown in fig. 7).

In order to ensure the connection reliability between the outer casing 3 and the insulating rubber base 2, a left anti-slip portion 342 may be further provided on the left side plate 34. Specifically, the method comprises the following steps: the left anti-slip part 342 is formed by bending the free end of the left side plate 34 to the right (as shown in fig. 6), and correspondingly, a left anti-slip groove 22 (as shown in fig. 12) matched with the left anti-slip part 342 is formed on the left side wall of the insulation rubber base 2. A right anti-slip part 352 may be additionally provided to the right side plate 35. Specifically, the method comprises the following steps: the right anti-slip part 352 is formed by bending the free end of the right side plate 35 to the left (as shown in fig. 7), and correspondingly, a right anti-slip groove 23 (as shown in fig. 12) matched with the right anti-slip part 352 is formed on the right side wall of the insulation rubber base 2. Therefore, on one hand, the left side plate 34 and the right side plate 35 can be in an elastic deformation state when being subjected to the lateral pressing force, so that the FFC flat cable can be restored to an initial state immediately after being unlocked, and the FFC flat cable is ready for the next FFC flat cable insertion operation; on the other hand, the directionality of the sliding of the left side plate 34 along the left side wall of the insulating rubber base 2 and the sliding of the right side plate 35 along the right side wall of the insulating rubber base 2 can be effectively ensured, the phenomenon of twisting deviation is prevented, and the smooth execution of the FFC flat cable unlocking operation is ensured.

It is known that, during the FFC cable unlocking operation, the left and right side walls of the insulating rubber base 2 are inevitably worn by the left and right anti-slip portions 342 and 352, and after a period of use, the left and right anti-slip portions 3421 may be disposed on the left anti-slip portion 342 and opposite to the left anti-slip groove 22, which may cause a clamping phenomenon as the wear increases. The left scratch-resistant transition portion 3421 is formed by bending the free end of the left anti-slip portion 342 in an arc shape. A right scratch prevention transition portion 3521 is provided on the right slip prevention portion 352 to face the right slip prevention groove 23. The right scratch transition 3521 is formed by an arc-shaped bend of the free end of the right anti-slip portion 352 (as shown in fig. 11).

Finally, in order to ensure the smooth execution of the assembling process of the FFC bus 1 and the FPC connector and prevent the occurrence of the clamping phenomenon, a tapered transition 3111 may be provided on the front side walls of the insertion limiting arms 311. And the oblique direction of the chamfered transition 3111 coincides with the insertion direction of the FFC bus bar 1 (as shown in fig. 6).

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.