CN213043118U

CN213043118U - Front-lifting FPC connector

Info

Publication number: CN213043118U
Application number: CN202022503644.6U
Authority: CN
Inventors: 陈进嵩; 夏国防
Original assignee: Goldenconn Electronic Technology Co Ltd
Current assignee: Goldenconn Electronic Technology Co Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-04-23
Anticipated expiration: 2030-11-03

Abstract

The utility model relates to a preceding formula FPC connector that lifts, put the locating part and put the locating part in the right side including insulating rubber seat, binding post, upset piece, a left side. Wherein, the wiring terminal is formed by connecting an upper cantilever, a rear contact arm and a lower cantilever in sequence. The overturning part comprises an overturning part body, a rotating arm, a left limiting block and a right limiting block. Along the length direction, a plurality of avoidance notches which are in one-to-one correspondence with the wiring terminals extend forwards from the rear end face of the turnover piece. The rotating arm is formed by extending the turnover part body and is formed in the avoiding notch. The rotating arm is arranged right above the lower cantilever and is always elastically pressed by the upper cantilever. The left limiting block and the right limiting block are respectively formed by extending the left side wall and the right side wall of the turnover part body outwards. Compared with the traditional lifting-closing type FPC connector, the front lifting-closing type FPC connector adopts a front lifting-closing type design structure, the overturning part can realize overturning action without being hinged with the insulating rubber seat, and the overturning part is locked by means of the limiting parts arranged on two sides of the overturning part subsequently.

Description

Front-lifting FPC connector

Technical Field

The utility model belongs to the technical field of FPC connector manufacturing technology and specifically relates to a lift formula FPC connector before.

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.

Most of the existing FPC connectors in the market are of a lifting structure. Chinese utility model patent CN105846191B discloses a FPC connector (as shown in fig. 1), including plastic main part, terminal, flip and elastomer, the terminal inserts in the plastic main part side by side from the front side, and flip installs in the upper portion of plastic main part from the rear side, and the elastomer is installed in plastic main part rear side both ends, and the elastomer includes elastomer basal portion and shell fragment, is equipped with rolling portion in the bottom at flip front side both ends, is equipped with the pivot at the lateral surface at flip front side both ends, and the pivot can pivot, upwards buckles from the inboard of elastomer shell fragment to have hasp portion. After the FFC flat cable is inserted, the FFC flat cable is prevented from being separated from the FPC connector under the action of external force through the locking action of the locking part, when the FFC flat cable needs to be taken out, the turnover cover is turned over, and the locking part is moved downwards through the rolling elastic sheet of the rolling part, so that the FFC flat cable can be taken out easily and smoothly. However, the utility model discloses an implement the structure complicacy, manufacturing cost is higher, and is not convenient for assemble, influences its popularization and application, therefore, the technical staff that awaits urgent attention is solved above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above-mentioned problems and drawbacks, the present invention provides a front lift FPC connector that is designed to collect relevant data, evaluate and consider various aspects, and continuously perform experiments and modifications by a plurality of years of research and development experience technicians engaged in the industry.

In order to solve the technical problem, the utility model relates to a preceding formula FPC connector that lifts, it includes that insulating rubber seat, wiring terminal subassembly, upset piece, a left side put the locating part and the locating part is put in the right side. The wiring terminal assembly is composed of a plurality of wiring terminals which are arranged in a linear array mode. A series of terminal slots are formed along the length direction of the insulating rubber base and used for inserting the wiring terminals respectively. The wiring terminal is formed by connecting an upper cantilever, a rear contact arm and a lower cantilever in sequence. The free end of the lower cantilever extends upwards to form a conducting part for realizing contact conduction with the flat cable. The overturning part comprises an overturning part body, a rotating arm, a left limiting block and a right limiting block. Along the length direction, a plurality of avoidance notches which are in one-to-one correspondence with the wiring terminals extend forwards from the rear end face of the turnover piece. The rotating arm is formed by extending the turnover part body and is formed in the avoiding notch. The left limiting block and the right limiting block are respectively formed by extending the left side wall and the right side wall of the turnover part body outwards. The rotating arm is arranged right above the lower cantilever and is always elastically pressed by the upper cantilever. The left limiting piece and the right limiting piece are fixed on the insulating rubber base and are symmetrically arranged along the left and right directions. The left-placed limiting part and the right-placed limiting part are provided with a left-placed limiting notch and a right-placed limiting notch which are respectively used for adapting and limiting the left-placed limiting block and the right-placed limiting block. When the turning piece is rotated to a flat state, the turning piece and the insulating rubber seat jointly surround to form a containing groove for inserting the flat cable.

As a technical scheme of the utility model, just corresponding to the conduction portion, set up the spacing groove with swinging boom appearance looks adaptation on last cantilever.

As a further improvement of the technical proposal of the utility model, the cross section of the rotating arm is circular, correspondingly, the limiting groove is an arc-shaped groove with the same size.

As the utility model discloses technical scheme's further improvement, put the locating part on a left side, put the locating part on the right side and all insert and establish in being fixed in the insulated rubber seat. The left-arranged limiting part comprises a left-arranged limiting part body and a left-arranged inserting part. The left limiting notch is arranged on the left limiting part body. The left insertion part is formed by extending a left limiting part body backwards. The right position limiting part comprises a right position limiting part body and a right position insertion part. The right limiting notch is opened on the right limiting part body. The right insertion part is formed by extending a right limiting part body backwards. A left slot and a right slot for the left insertion part and the right insertion part are respectively arranged in the insulating rubber base.

As a further improvement of the technical proposal of the utility model, the top wall of the left insertion part is upwards extended to form a left anti-slip bulge. A right anti-slip bulge extends upwards from the top wall of the right insertion part.

As a further improvement of the technical proposal of the utility model, the left locating part also comprises a left welding part. The left welding part is formed by continuously extending the bottom wall of the left limiting part body downwards. The right position limiting part also comprises a right position welding part. The right welding part is formed by continuously extending the bottom wall of the right limiting part body downwards. The left welding part and the right welding part are welded and fixed with the PCB.

As a further improvement of the technical proposal of the utility model, the left locating part also comprises a left baffle leaning part. The left stop leaning part is formed by continuously extending and bending the bottom wall of the left limiting part body downwards. The right position limiting part also comprises a right position blocking leaning part. The right stop leaning part is formed by continuously extending and bending the bottom wall of the right limiting part body downwards. When the left limiting piece and the right limiting piece are inserted in place relative to the insulating rubber base, the left baffle leaning portion and the right baffle leaning portion are just leaned against the front side wall of the insulating rubber base.

Compared with the traditional lifting-closing type FPC connector, the front lifting-closing type FPC connector adopts a front lifting-closing type design structure, the overturning part can realize overturning action without being hinged with the insulating rubber seat, and the overturning part is locked by means of the limiting parts arranged on two sides of the overturning part subsequently. In the actual operation process, the installation and the disassembly of the flat cable can be realized only by pulling the turnover piece, so that the installation and the disassembly speed of the flat cable are greatly improved. Moreover, the design structure of the front-lift FPC connector is very simple, so that the total assembly time is favorably shortened, and the production and manufacturing cost is reduced. More importantly, the turnover part is reliably locked by means of the combined action of the left limiting part and the right limiting part, so that the phenomenon that the turnover part breaks away due to vibration in the specific application process of the front-lifting FPC connector can be effectively prevented, and the reliability of the winding displacement locking state is further ensured.

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 these drawings without creative efforts.

Fig. 1 is an exploded view of the front-lift FPC connector of the present invention.

Fig. 2 is a schematic perspective view of the front-lift FPC connector of the present invention.

Fig. 3 is a schematic perspective view of an insulating rubber seat in the front-lift FPC connector of the present invention.

Fig. 4 is a schematic perspective view of a connection terminal in the front-lift FPC connector of the present invention.

Fig. 5 is a perspective view of a flip member in the front-lift FPC connector of the present invention.

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

Fig. 7 is a perspective view of another view angle of the flip member in the front-lift FPC connector of the present invention.

Fig. 8 is a partial enlarged view II of fig. 5.

Fig. 9 is a schematic perspective view of the left-side locating part in the front-lift FPC connector of the present invention.

Fig. 10 is a perspective view of the right-located position-limiting part in the front-lift FPC connector of the present invention.

Fig. 11 is a top view of fig. 2.

Fig. 12 is a sectional view a-a of fig. 11.

Fig. 13 is a sectional view B-B of fig. 11.

Fig. 14 is a cross-sectional view C-C of fig. 11.

Fig. 15 is a cross-sectional view taken along line D-D of fig. 11.

1-an insulating rubber base; 11-terminal slot; 12-left slot; 13-right slot; 2-a terminal assembly; 21-a connecting terminal; 211-upper cantilever; 2111-limit groove; 212-rear link arm; 213-lower cantilever; 2131-conducting parts; 3-turning over the piece; 31-a flip body; 311-avoiding the notch; 32-a rotating arm; 33-a left limiting block; 34-a right limiting block; 4-left locating piece; 41-left locating part body; 411-left position limit notch; 42-left insertion; 421-placing an anti-slip bulge at the left; 43-left weld; 44-left stop part; 5-right position limiting piece; 51-a right position limiter body; 511-right position limit notch; 52-right insertion; 521-right placing the anti-slip bulge; 53-right weld; 54-right stop part.

Detailed Description

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

As known, the FPC connector is fixed to the PCB and is used to plug in a flat cable (e.g. FFC flat cable) to transmit signals.

The contents of the present invention will be further described in detail with reference to the specific embodiments, and fig. 1 and fig. 2 respectively show the explosion diagram and the three-dimensional assembly diagram of the front-lift FPC connector of the present invention, and it can be seen that the front-lift FPC connector mainly comprises an insulating rubber seat 1, a wiring terminal assembly 2, an overturning member 3, a left-side limiting member 4, a right-side limiting member 5, and so on. The terminal block assembly 2 is composed of a plurality of terminals 21 arranged in a linear array. A series of terminal slots 11 are formed along the length direction of the insulating rubber base 1 for inserting the connecting terminals 21. The connecting terminal 21 is formed by sequentially connecting an upper cantilever 211, a rear contact arm 212 and a lower cantilever 213. A conducting portion 2131 extends upward from the free end of the lower cantilever 213 for conducting with the flat cable. The turning member 3 includes a turning member body 31, a rotating arm 32, a left stopper 33 and a right stopper 34. Along the length direction, a plurality of avoidance notches 311 which are in one-to-one correspondence with the wiring terminals 21 extend forwards from the rear end surface of the turnover piece 3. The rotating arm 32 is formed by extending the flip body 31 and is formed in the avoiding notch 311. The left stopper 33 and the right stopper 34 are respectively formed by extending the left and right sidewalls of the flip body 31 outward. The rotating arm 32 is disposed directly above the lower suspension arm 213 and is always elastically pressed by the upper suspension arm 211. The left limiting piece 4 and the right limiting piece 5 are fixed on the insulating rubber base 1 and are symmetrically arranged along the left and right direction. The left limiting member 4 and the right limiting member 5 are respectively provided with a left limiting notch 411 and a right limiting notch 511 for adapting and limiting the left limiting member 33 and the right limiting member 34. When the turning member 3 is rotated to a flat position, it and the insulating rubber base 1 together form a receiving slot for inserting the flat cable (as shown in fig. 3-15). Therefore, the turnover part 3 can realize the turnover action without being hinged with the insulating rubber seat 1, and is locked by the left limiting part 4 and the right limiting part 5 which are arranged at the two sides of the turnover part subsequently. In the actual operation process, the installation and the disassembly of the flat cable can be realized only by pulling the turnover part 3, so that the installation and the disassembly speed of the flat cable are greatly improved.

In addition, the following two points need to be explained: 1) the front-lift FPC connector has a very simple design structure, so that the total assembly time is favorably shortened, and the production and manufacturing cost is reduced; 2) the reliable locking of the turnover part 3 is realized by means of the combined action of the left limiting part 4 and the right limiting part 5, so that the phenomenon that the turnover part 3 breaks away due to vibration in the specific application process of the front-lift type FPC connector can be effectively prevented, and the reliability of the winding displacement locking state is further ensured.

Since the left limiting block 33 and the right limiting block 34 can smoothly enter the left limiting notch 411 and the right limiting notch 511 which are matched with the left limiting block and the right limiting block, and the 'clamping stagnation' phenomenon is avoided, a guide inclined plane can be obliquely cut along the edge of the free end of the left limiting block 33 and the edge of the free end of the right limiting block 34 (as shown in fig. 5, 6, 7 and 8).

As a further optimization of the front-lift FPC connector structure, a limiting groove 2111 (as shown in fig. 4, 5, 6, 11, and 13) adapted to the shape of the rotating arm 32 may be formed on the upper cantilever 211 opposite to the conductive portion 2131. After the assembly of the front lift type FPC connector is completed, the rotating arm 32 on the flip 3 is just placed in the limiting groove 2111, that is, the relative position of the rotating arm 32 is limited, the phenomenon that the rotating arm 32 moves along the front-back direction in the process of rotating the flip 3 is prevented, and the flip 3 is ensured to more reliably realize the locking/unlocking operation of the flat cable.

Based on the above technical solution, through multiple times of preferred design and practical experimental verification, when the cross section of the rotating arm 32 is circular, correspondingly, the limiting groove 2111 is an arc-shaped groove with a size consistent with that of the circular cross section, so that a good application effect can be obtained (as shown in fig. 4, 6, 11, and 13).

As is known, the left position limiting element 4 and the right position limiting element 5 can be fixed to the insulating rubber base 1 by various design structures, such as an embedded type, an injection molding integrated type (i.e. in the process of injection molding, the left position limiting element 4 and the right position limiting element 5 are directly molded on the insulating rubber base 1), and the like, however, a technical solution is proposed herein, which has a simple design structure, is beneficial to implementation, and is convenient for subsequent maintenance (replacement of the left position limiting element 4 and the right position limiting element 5), specifically as follows: as shown in fig. 1 and 2, the left position limiting member 4 and the right position limiting member 5 are inserted and fixed in the insulating rubber base 1. The left position limiting member 4 includes a left position limiting member body 41 and a left insertion portion 42. The left position-limiting notch 411 is opened on the left position-limiting member body 41. The left insertion portion 42 is formed by extending the left stopper body 41 rearward. The right position limiting member 5 includes a right position limiting member body 51 and a right position insertion portion 52. The right position limiting notch 511 is opened on the right position limiting member body 51. The right insertion portion 52 is formed by extending the right stopper body 51 rearward (as shown in fig. 9 and 10). A left slot 12 and a right slot 13 (as shown in fig. 3) for the left insertion portion 42 and the right insertion portion 52 are respectively formed in the insulating rubber base 1. The left insert part 42 and the left slot 12 and the right insert part 52 and the right slot 13 are assembled in an interference fit manner, so that the elastic deformation force of the insulating rubber seat 1 is facilitated to clamp the left limiting part 4 and the right limiting part 5.

In order to further ensure the fixing reliability of the left-side limiting part 4, the right-side limiting part 5 and the insulating rubber base 1 and prevent the occurrence of the slipping phenomenon in the practical application process, a left-side anti-slipping protrusion 421 may further extend upward from the top wall of the left-side insertion portion 42. Extending upwardly from the top wall of the right insert 52 is a right anti-slip projection 521 (shown in FIGS. 9, 10, 11, 14, 15). Therefore, in the process that the left limiting part 4 and the right limiting part 5 are inserted into the insulating rubber base 1, the left anti-slip protrusion 421 and the right anti-slip protrusion 521 on the left limiting part force the left slot 12 and the right slot 13 to generate self-adaptive elastic deformation to form "blocking", so that the fixing reliability of the left limiting part 4 and the right limiting part 5 relative to the insulating rubber base 1 is further increased.

Furthermore, on the basis of the above design structure, a left welding portion 43 is further added to the left position limiting member 4. The left welding portion 43 is formed by extending the bottom wall of the left position limiting member body 41 downward. The right position limiting member 5 is further provided with a right position welding part 53. The right welding portion 53 is formed by extending the bottom wall of the right position limiting body 51 downward. The left solder mount 43 and the right solder mount 53 are soldered and fixed to the PCB (as shown in fig. 9 and 10). Through adopting above-mentioned technical scheme to set up to ensure the fixed reliability of this front lift formula FPC connector and PCB board, avoided each binding post 21 to receive the effect of pulling power promptly indirectly, ensured its and PCB board's stability of being connected.

Finally, the left position limiting member 4 may further include a left position stopping portion 44 according to specific situations. The left stop portion 44 is formed by continuously extending and bending the bottom wall of the left position limiting member body 41. Similar to the left position limiting member 4, the right position limiting member 5 may also be provided with a right position stopping portion 54. The right stop portion 54 is formed by continuously extending and bending the bottom wall of the right position limiting body 51. When the left position-limiting member 4 and the right position-limiting member 5 are inserted in place relative to the insulating rubber base 1, the left position-blocking leaning portion 44 and the right position-blocking leaning portion 54 just lean against the front side wall of the insulating rubber base 1 (as shown in fig. 2, 9 and 10). Therefore, on one hand, the consistency of the relative installation positions of the left limiting piece 4 and the right limiting piece 5 in the insulating rubber base 1 is ensured; on the other hand, the alignment accuracy of the left limiting notch 411 and the right limiting notch 511, the left limiting block 33 and the right limiting block 34 is ensured, and the smooth execution of the winding displacement locking or unlocking operation is ensured.

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.

Claims

1. A front-lifting FPC connector is characterized by comprising an insulating rubber seat, a wiring terminal assembly, a turnover piece, a left limiting piece and a right limiting piece; the wiring terminal assembly is composed of a plurality of wiring terminals which are arranged in a linear array mode; a series of terminal slots are formed along the length direction of the insulating rubber seat and are respectively used for inserting the wiring terminals; the wiring terminal is formed by sequentially connecting an upper cantilever, a rear contact arm and a lower cantilever; a conducting part extends upwards from the free end of the lower cantilever so as to realize contact conduction with the flat cable; the overturning part comprises an overturning part body, a rotating arm, a left limiting block and a right limiting block; a plurality of avoidance notches which are in one-to-one correspondence with the wiring terminals extend forwards from the rear end surface of the turnover piece along the length direction of the turnover piece; the rotating arm is formed by extending the turnover piece body and is formed in the avoidance notch; the left limiting block and the right limiting block are respectively formed by outwards extending the left side wall and the right side wall of the turnover part body; the rotating arm is arranged right above the lower cantilever and is always elastically pressed by the upper cantilever; the left limiting piece and the right limiting piece are fixed on the insulating rubber base and are symmetrically arranged along the left and right directions; a left limiting notch and a right limiting notch are formed in the left limiting piece and the right limiting piece and are respectively used for adapting and limiting the left limiting piece and the right limiting piece; when the turnover piece is rotated to be in a flat state, the turnover piece and the insulating rubber seat jointly surround to form a containing groove for inserting the flat cable.

2. The front-lift FPC connector of claim 1, wherein a limiting groove adapted to the shape of the rotating arm is formed on the upper cantilever right corresponding to the conductive portion.

3. The front-lift FPC connector of claim 2, wherein the cross section of the rotating arm is circular, and correspondingly, the limiting groove is an arc-shaped groove with the same size.

4. The front-lift FPC connector according to any one of claims 1 to 3, wherein the left-located limiting piece and the right-located limiting piece are inserted and fixed into the insulating rubber base; the left limiting part comprises a left limiting part body and a left inserting part; the left limiting notch is arranged on the left limiting part body; the left insertion part is formed by extending the left limiting part body backwards; the right position limiting part comprises a right position limiting part body and a right position insertion part; the right limiting notch is arranged on the right limiting part body; the right insertion part is formed by extending the right limiting part body backwards; and a left inserting groove and a right inserting groove which are respectively used for the left inserting part and the right inserting part are formed in the insulating rubber seat.

5. The front lift FPC connector of claim 4, wherein a left anti-slip protrusion extends upward from a top wall of the left insertion portion; a right anti-slip bulge extends upwards from the top wall of the right insertion part.

6. The front-lift FPC connector of claim 4, wherein the left position-limiting member further comprises a left position-welding portion; the left welding part is formed by continuously extending the bottom wall of the left limiting part body downwards; the right position limiting part also comprises a right position welding part; the right welding part is formed by continuously extending the bottom wall of the right limiting part body downwards; the left welding part and the right welding part are welded and fixed with the PCB.

7. The front-lift FPC connector of claim 6, wherein the left position-limiting member further comprises a left position-stopping portion; the left stop leaning part is formed by continuously extending and bending the bottom wall of the left limiting part body downwards; the right position limiting part also comprises a right position blocking leaning part; the right stop leaning part is formed by continuously extending and bending the bottom wall of the right limiting part body downwards; when the left limiting part and the right limiting part are inserted in place relative to the insulating rubber base, the left baffle leaning part and the right baffle leaning part are just leaned against the front side wall of the insulating rubber base.