阅读说明：本技术 一种侧压解锁式fpc连接器 (Side pressure unlocking type FPC connector ) 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：本发明涉及了一种侧压解锁式FPC连接器,包括绝缘胶座、左壳体、右壳体以及接线端子。其中,左壳体和右壳体分别布置于绝缘胶座的左、右侧,其两者呈镜像对称关系。针对于左壳体来说,其包括左顶板、左底板、左连接板以及左侧板。左连接板连接于左顶板和左底板之间。由左顶板向下延伸出有左插接限位臂,相对应地,在FFC排线上开设有插接限位凹槽。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继续向上延伸而成。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,利于后期对其装配空间进行布局、设计。(The invention relates to a side-pressing unlocking type FPC connector which comprises an insulating rubber seat, a left shell, a right shell and a wiring terminal. Wherein, left casing and right casing are arranged respectively in the left and right side of insulating rubber seat, and its both are mirror symmetry relation. For the left shell, the left shell comprises a left top plate, a left bottom plate, a left connecting plate and a left side plate. The left connecting plate is connected between the left top plate and the left bottom plate. A left inserting limiting arm extends downwards from the left top plate, and correspondingly, an inserting limiting groove 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 continuously extending the free end of the left connecting transition part upwards. Thus, the FPC connector is effectively prevented from being damaged by pressure. More importantly, 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.)

1. A side pressure unlocking type FPC connector comprises an FFC flat cable, an insulating rubber seat, a left shell, a right shell and a wiring terminal; the left shell and the right shell are respectively arranged and fixed on the left side and the right side of the insulating rubber seat; 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 left shell comprises a left top plate, a left bottom plate, a left connecting plate and a left side plate; the left connecting plate is connected between the left top plate and the left bottom plate; a left inserting limiting arm extends downwards from the left top plate, and correspondingly, an inserting limiting groove matched with the left 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 continuously extending the free end of the left connecting transition part upwards; the right shell and the left shell are in mirror symmetry.

2. The side-press unlocking type FPC connector according to claim 1, wherein a left guide inclined surface is provided on the left abutting projection.

3. The side-compression unlocking type FPC connector of claim 2, wherein a cylindrical lifting part extends downwards along the bottom wall of the left top plate and corresponds to the position of the left abutting convex part; and the columnar lifting part is tangent to the left side wall of the left top plate.

4. The side-press unlocking FPC connector of claim 3, wherein the left guide inclined surface is inclined at an angle α < 45 ° with respect to the horizontal plane.

5. The side press-unlocked FPC connector of claim 1, wherein the number of left-side abutment bosses thereon is at least 2 for the left-side press arm, and is linearly arrayed along the width direction of the left connection transition.

6. The side-press unlocking FPC connector of claim 1, wherein the left side plate is extended from the left top plate; or the left side plate is formed by extending the left bottom plate; or the left side plate is formed by extending the left connecting plate.

7. The side compression unlocked FPC connector of any of claims 1-6, wherein the left side plate comprises 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.

8. The side-compression unlocking type FPC connector according to claim 7, wherein a left anti-scraping 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 arc of the left anti-slipping part.

9. The side compression unlocked FPC connector of claim 8, wherein the left side plate further comprises at least one "Z-shaped" fold back; the folding part is formed by bending the body of the left side plate.

10. The side-pressure unlocking type FPC connector of claim 7, wherein a bevel transition is arranged on each front side wall of the left insertion 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 a side pressure unlocking type FPC connector.

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 a side-pressure unlocking type FPC connector which is simple in structural design, convenient for FFC flat cables to be installed and detached and capable of avoiding the FFC flat cables from being damaged by pressure.

In order to solve the technical problem, the invention relates to a side pressure unlocking type FPC connector which comprises an FFC flat cable, an insulating rubber seat, a left shell, a right shell and a wiring terminal. Wherein, the left shell and the right shell are respectively arranged and fixed on the left side and the right side of the insulating rubber seat. An FFC flat cable plugging groove is arranged in the insulating rubber seat and used for plugging an FFC flat cable. A series of terminal insertion grooves are uniformly distributed in the length direction of the FFC flat cable insertion groove and used for inserting and fixing the wiring terminals. For the left shell, the left shell comprises a left top plate, a left bottom plate, a left connecting plate and a left side plate. The left connecting plate is connected between the left top plate and the left bottom plate. A left inserting limiting arm extends downwards from the left top plate, and correspondingly, an inserting limiting groove matched with the left 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 continuously extending the free end of the left connecting transition part upwards. The right shell and the left shell are in mirror symmetry.

As a further improvement of the technical scheme of the invention, a left guide inclined plane is arranged on the left abutting convex part.

As a further improvement of the technical scheme of the invention, a columnar lifting part extends downwards along the bottom wall of the left top plate just corresponding to the position of the left jacking boss. And the columnar lifting part is tangent to the left side wall of the left top plate.

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

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

As a further improvement of the technical scheme of the invention, the left side plate is formed by extending a left top plate; or the left side plate is formed by extending the left bottom plate; or the left side plate is formed by extending the left connecting plate.

As a further improvement of the technical scheme of the invention, the left side plate comprises a left anti-slip part. 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.

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.

As a further improvement of the technical solution of the present invention, the left side plate further comprises at least one "Z-shaped" folded portion. The folding part is formed by bending the body of the left side plate.

As a further improvement of the technical scheme of the invention, the front side walls of the left inserting 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.

As a further improvement of the technical scheme of the invention, a series of anti-skid protrusions or anti-skid grooves are linearly arrayed on the outer side of the left side plate along the length direction of the left side plate.

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. Separately to left casing, when operating personnel pressed its left side board from the side simultaneously, drive left side pressure arm and carry out translational motion right promptly, and then leaned on the bellying with the help of the top on it and accomplish the lifting to left roof board, meanwhile, left grafting spacing arm breaks away from out the grafting spacing recess on the FFC winding displacement gradually. Similarly, the unlocking of the right housing is performed according to the above operation method, that is, the unlocking operation of the FFC bus line is completed. Therefore, the FPC connector is effectively prevented from being damaged by pressure, and the stability of the product function is ensured; more importantly, the left shell and the right shell can be directly attached and fixed on the upper surface of the insulating rubber base 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 a side pressure unlocked FPC connector of 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 perspective view of the left housing of the side press-unlocked FPC connector of the present invention.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a front view of fig. 5.

Fig. 8 is a perspective view of the right housing of the side press-unlocked FPC connector of the present invention.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a front view of fig. 8.

Fig. 11 is a perspective view of an insulating rubber base in the side-press unlocking type FPC connector of 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; 3-a left shell; 31-left top plate; 311-left insertion limiting arm; 3111-beveling the transition; 312-column-shaped lifting part; 32-left bottom plate; 33-a left 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; 343-a fold back portion; 4-right shell; 5-a connecting terminal.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", etc., indicate orientations or positional relationships based on those 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 further detail with reference to the following embodiments, and fig. 2 and fig. 3 respectively show a perspective view and a top view of a side-press unlocking type FPC connector according to the present invention, and it can be understood that the connector mainly comprises an FFC bus bar 1, an insulating rubber base 2, a left housing 3, a right housing 4, a connection terminal 5, and the like. Wherein, the left shell 3 and the right shell 4 are respectively arranged and fixed on the left side and the right side of the insulating rubber base 2. An FFC flat cable insertion groove 21 is arranged in the insulating rubber base 2 and used for inserting the FFC flat cable 1. A series of terminal insertion grooves 211 are uniformly distributed along the length direction 21 of the FFC flat cable insertion groove for inserting and fixing the connection terminal 5.

As for the left housing 3, it includes a left top plate 31, a left bottom plate 32, a left connecting plate 33, and a left side plate 34 (as shown in fig. 5, 6, and 7). The left connecting plate 33 is connected between the left top plate 31 and the left bottom plate 32. A left insertion limiting arm 311 extends downward from the left top plate 31, and correspondingly, an insertion limiting groove 11 (as shown in fig. 4) adapted to the left insertion limiting arm 311 is formed on the FFC flat cable 1. 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 is formed by a free end of the left connecting transition 3411 continuing to extend upward. The right housing 4 is in mirror symmetrical relationship with the left housing 3 (as shown in fig. 8, 9, 10). Therefore, the FPC connector is effectively prevented from being damaged by pressure, and the stability of the product function is ensured; more importantly, the left shell 3 and the right shell 4 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 later arrangement and design of the assembly space of the FPC connector are facilitated.

The action principle of the side-pressing unlocking type FPC connector is as follows: for the left housing 3 alone, when the operator presses the left side plate 34 from the side, the left pressing arm 341 is driven to perform a translational motion rightward, and the left abutting protrusion 3412 on the left pressing arm completes the lifting of the left top plate 31, and at the same time, the left insertion limiting arm 311 gradually disengages from the insertion limiting groove 11 on the FFC flat cable 1. Similarly, the unlocking of the right housing 4 is performed in accordance with the above-described operation method, that is, the unlocking operation of the FFC bus line is completed.

It should be noted that, in addition to the left connecting plate 33 described in the above technical solution (as shown in fig. 5), the left side plate 34 may also be extended from the left top plate 31 or the left bottom plate 32 (not shown in the drawings) according to the circumstances.

In order to prevent the left abutting protrusion 3412 from being blocked by the left top plate 31 during the rightward displacement motion, a left guide inclined surface 34121 (shown in fig. 7) may be provided on the left abutting protrusion 3412. as a further optimization of the above technical solution, the left guide inclined surface 34121 is inclined at an angle α < 45 ° with respect to the horizontal plane.

Further, a column-shaped raised portion 312 may extend downward along the bottom wall of the left top plate 31 just corresponding to the position of the left abutting protrusion 3412. And the cylindrical lift 312 is tangent to the left sidewall of the left top panel 31 (as shown in fig. 5, 7). Thus, on the one hand, the presence of the columnar lifting portion 312 can improve the smoothness of the rightward displacement movement of the left abutting projection 3412 relative to the left top plate 31 to some extent, and ensure smooth execution of the FFC bus bar unlocking operation; on the other hand, on the premise of reducing the thickness of the left top plate 31 itself, the left abutting protrusion 3412 performs a small displacement motion, and thus a large distance lift of the left top plate 31 can be achieved.

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. 5).

In order to ensure the connection reliability between the left housing 3 and the insulating rubber base 2, a left anti-slip portion 342 may be additionally 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. 5), and correspondingly, a left anti-slip groove 22 (as shown in fig. 11) matched with the left anti-slip part 342 is formed on the left side wall of the insulation rubber base 2. Therefore, on one hand, the left side plate 34 can be in an elastic deformation state when being subjected to the lateral pressing force, so that the FFC flat cable can be immediately restored to the initial state 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 left side plate 34 when sliding along the left side wall of the insulating rubber base 2 can be effectively ensured, the phenomenon of deflection is prevented, and the smooth execution of the FFC flat cable unlocking operation is ensured.

In order to further increase the elastic restoring force of the left side plate 34, at least one "Z" folded portion 343 may be further provided on the left side plate 34. The folded-back portion 343 is formed by folding the body of the left side plate 34 (as shown in fig. 5 and 6).

In addition, in the process of performing the FFC bus bar unlocking operation, the left anti-slip portion 342 inevitably wears the right sidewall of the insulating rubber base 2, and after a period of use, the left anti-slip portion 3421 may be disposed on the left anti-slip portion 324, opposite to the left anti-slip groove 22, and may possibly cause a sticking phenomenon as the amount of wear increases. The left anti-scrape transition portion 3421 is formed by arcuately bending the free end of the left anti-slip portion 342 (as shown in fig. 6).

In order to ensure smooth assembling 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 wall of the left insertion stopper arm 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. 5).

Furthermore, a series of anti-skid protrusions or anti-skid grooves (not shown in the figure) can be linearly arrayed on the outer side of the left side plate 34 along the length direction, so that the phenomenon of side slipping of an operator in the process of side pressing of the left side plate 34 is effectively avoided, and the timeliness and the performability of the operation are ensured.

Finally, since the right housing 4 is in mirror symmetry with respect to the left housing 3 (as shown in fig. 8, 9 and 10), for the sake of brevity, only the structure of the left housing 3, the subsequent optimization and the operation principle thereof will be described in detail, and the right housing 4 will not be described. The right housing 4 is designed in a similar manner to the left housing 3.

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.