CN109687188B - FPC/FFC connector - Google Patents
FPC/FFC connector Download PDFInfo
- Publication number
- CN109687188B CN109687188B CN201910036999.8A CN201910036999A CN109687188B CN 109687188 B CN109687188 B CN 109687188B CN 201910036999 A CN201910036999 A CN 201910036999A CN 109687188 B CN109687188 B CN 109687188B
- Authority
- CN
- China
- Prior art keywords
- insulating shell
- terminal pin
- grounding
- circuit board
- fpc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 230000007306 turnover Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 23
- 230000003993 interaction Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 210000004907 gland Anatomy 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses an FPC/FFC connector, which comprises an insulating shell, a connecting terminal and an insulating gland, wherein one side of the insulating shell is provided with an insertion port, and the other side of the insulating shell is provided with a plurality of terminal pin mounting holes at intervals; the connecting terminal comprises a plurality of terminal pins, each terminal pin is inserted into a corresponding terminal pin mounting hole, and each terminal pin is provided with a connecting part extending to the bottom surface of the insulating shell; the two ends of the insulating gland are respectively provided with a rotating shaft and are arranged on the insulating shell in a turnover way through the rotating shafts; the insulating shell is characterized by further comprising two metal grounding plates, the two ends of the insulating shell are respectively provided with a grounding socket, each metal grounding plate is respectively inserted into and limited in the corresponding grounding socket, and each metal grounding plate is provided with a contact part extending to the bottom surface of the insulating shell. The invention has the following advantages and effects: the two metal grounding plates are connected with the signal layer of the circuit board to realize uniform grounding, so that interference among signals is reduced, and the integrity of the signals is ensured.
Description
Technical Field
The invention relates to the field of connectors, in particular to an FPC/FFC connector.
Background
FPC (Flexible Print Circuit, flexible printed circuit) is a novel data cable that forms with insulating material and extremely thin tinned flat copper wire, pressfitting through high-tech automation equipment production line, has soft, bending at will folding, thickness is thin, small, connect simple, dismantle advantage such as convenient, easy solution electromagnetic shield (EMI). The number and the spacing of the wires can be arbitrarily selected, so that the wire connection is more convenient, the volume of an electronic product is greatly reduced, the production cost is reduced, the production efficiency is improved, and the wire connection device is most suitable for being used as a data transmission cable between a mobile part and a main board, between PCB boards and in miniaturized electrical equipment.
The FFC (Flexible Flat Cable ) has the advantages of small volume, high precision, convenient use, portability, ultra-thin type, bending resistance and the like, and is widely applied to the electric connection of digital appliances such as mobile phones, DSC, DVD, security cameras and the like.
In the field of connectors, in particular connectors for audio devices, the demands on tamper resistance are increasing. The existing FPC/FFC connector has poor anti-interference capability due to the limitation of the structure, and particularly when a plurality of signal lines are distributed on a circuit board, the mutual interference can greatly influence the stability of signal transmission, so that the audio signal transmitted by the FPC/FFC connector is distorted, and the normal use of audio equipment is seriously influenced.
Disclosure of Invention
The invention aims to provide an FPC/FFC connector, which is connected with a signal layer of a circuit board through two metal grounding plates to realize uniform grounding, so that interference among signals is reduced, and the integrity of the signals is ensured.
The technical aim of the invention is realized by the following technical scheme: an FPC/FFC connector comprising: an insulating shell, wherein one side of the insulating shell is provided with an inserting port for inserting an FPC or FFC flat cable, and the other side of the insulating shell is provided with a plurality of terminal pin mounting holes at intervals; the connecting terminals comprise a plurality of terminal pins, each terminal pin is inserted into a corresponding terminal pin mounting hole and extends to the insertion port, each terminal pin is provided with a connecting part extending to the bottom surface of the insulating shell, and each connecting part is welded on the circuit board and forms signal interaction with the circuit board; the two ends of the insulating gland are respectively provided with a rotating shaft, the insulating gland is arranged on the insulating shell in a turnover way through the rotating shafts at the two ends, and the FPC or FFC flat cable is shielded when the insulating gland is closed; the circuit board is characterized by further comprising two metal grounding plates, wherein grounding sockets are formed in two ends of the insulating shell, each metal grounding plate is respectively inserted into and limited in the corresponding grounding socket, each metal grounding plate is provided with a contact part extending to the bottom surface of the insulating shell, and each contact part can be welded on the circuit board and form common grounding with the circuit board.
By adopting the technical scheme, the FPC or the FFC flat cable is inserted into the insertion port on the insulating shell, and the FPC or the FFC flat cable and the terminal pins of the insertion port are protected by shielding the insulating gland and the FPC or the FFC flat cable. Aiming at the problem of poor anti-interference capability of the traditional FPC/FFC connector, the invention is provided with two metal grounding plates, and the two ends of the insulating shell are provided with grounding sockets for installing the metal grounding plates. When the invention is welded on the circuit board, the contact parts on the two metal grounding plates can realize common grounding with the circuit board, and the common grounding area of the circuit board is expanded. When the number of electronic elements on the circuit board is large and the signal line is complicated, the grounding potential is easy to change along with the change of current, the electronic equipment connected with the wiring terminal is influenced to cause unstable signal level, the noise-resistant and interference-resistant capability is weakened, and the distortion phenomenon of an audio signal is extremely easy to cause. Meanwhile, the circuit board needs to be matched with the shell of the product in design, so that the size is limited, the ground wire of the circuit board is thin and small in area, the anti-interference performance is poor, and the circuit board is easy to overheat and deform and bulge, so that the invention can realize common grounding to expand the area of the ground wire to reduce interference under the conditions; meanwhile, the two metal grounding plates can also play a role in assisting heat dissipation, and the phenomenon that the heating value on the circuit board is increased due to overlarge current is avoided. In addition, the invention can also effectively reduce the loss caused by skin effect by two metal sheets, the skin effect means that the current distribution in the conductor is uneven, the current is concentrated on the skin part of the conductor, that is, the current is concentrated on the thin layer on the surface of the conductor, the closer to the surface of the conductor, the higher the current density is, the smaller the current actually flows in the conductor, and as a result, the resistance of the conductor is increased, and the loss power of the conductor is also increased. The metal grounding plate is made of metal, so that the surface of the metal grounding plate is metal, the surface resistance can be effectively reduced, and the loss generated during current transmission can be improved. At the same time, by preventing interference, the performance of having a high definition connection when used for video is optimized.
Further provided is that: each of the metal grounding plates comprises: a base portion as a carrying structure; the bending part is connected with one end of the base body part and bends towards the upper part of the base body part, and has elasticity and a trend of upwards expanding through the elastic acting force of the bending part; the other end of the base body part opposite to the bending part is connected with the contact part, the contact part is positioned at the side of the base body part, and a positioning bending section for downward bending transition is arranged between the contact part and the base body part.
Through adopting above-mentioned technical scheme, when base member portion inserts to the ground connection socket, make kink and ground connection socket's upper end inner wall butt through kink's elastic force to make whole metal grounding piece steadily limit to be located the ground connection socket, avoid external rocking to make the metal grounding piece drop out the condition emergence of ground connection socket. In addition, a positioning bending section is arranged between the base body part and the contact part, so that a user can conveniently find a position to insert the metal grounding sheet into the grounding socket, and the positioning bending section is used as an insertion point, so that the whole insertion action is smoother; meanwhile, the arrangement of the positioning bending section can also avoid the occurrence of reverse insertion and provide the production and assembly efficiency.
Further provided is that: one side of the base body part is provided with a plurality of clamping bulges which are abutted against the inner wall of the grounding socket.
Through adopting above-mentioned technical scheme, the screens is protruding as further spacing to base member portion, through the interference frictional force of the protruding inner wall with the ground connection socket of screens, can guarantee that whole metal grounding piece can be firm spacing be fixed in the ground connection socket, avoid the drop of metal grounding piece, provide overall stability.
Further provided is that: the length direction of the connecting part of each terminal pin is consistent with the direction of the terminal pin inserted into the terminal pin mounting hole, and the contact part of each metal grounding piece and the connecting part of each terminal pin are positioned on the same plane.
By adopting the technical scheme, the invention adopts the patch type production, and has the advantage of high production efficiency compared with the production mode that the terminal pins are perpendicular to the bottom surface of the insulating shell and are inserted into the circuit board in the traditional connector. In the production process, the steps of manually inserting the terminal pins of the connector into the corresponding bonding pads of the circuit board and soldering tin are not needed, the SMT automatic chip mounter is directly utilized, the connector is welded after electronic elements such as resistors and capacitors are welded by the SMT automatic chip mounter, and the production is very convenient and unified.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a second schematic structural diagram of an embodiment;
fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is a schematic diagram III of an embodiment;
FIG. 5 is a schematic diagram of a metal grounding plate according to an embodiment;
fig. 6 is a schematic structural diagram of a metal grounding plate in the second embodiment.
In the figure: 1. an insulating housing; 2. an insertion port; 3. an insulating gland; 4. terminal pin mounting holes; 5. a terminal pin; 50. a connection part; 6. a ground jack; 7. a metal grounding plate; 71. a base portion; 710. a clamping protrusion; 72. a bending part; 73. a contact portion; 8. and positioning the bending section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, an FPC/FFC connector includes an insulating housing 1, connection terminals, and an insulating cover 3. Wherein:
one side of the insulating shell 1 is provided with an inserting port 2 for inserting an FPC or FFC flat cable, and the other side is provided with a plurality of terminal pin mounting holes 4 at intervals;
the connecting terminal comprises a plurality of terminal pins 5, each terminal pin 5 is inserted into a corresponding terminal pin mounting hole 4 and extends to the insertion port 2 from the terminal pin mounting hole 4, after the FPC or FFC flat cable is inserted into the insertion port 2, the FPC or FFC flat cable is electrically connected with each terminal pin 5, each terminal pin 5 is provided with a connecting part 50 extending to the bottom surface of the insulating shell 1, and each connecting part 50 is welded on the circuit board and forms signal interaction with the circuit board, so that the signal of the circuit board can be transmitted to the FPC or FFC flat cable through the terminal pins 5;
the two ends of the insulating gland 3 are respectively provided with a rotating shaft, the insulating gland 3 is arranged on the insulating shell 1 in a turnover way through the rotating shafts at the two ends, and the FPC or FFC flat cable is shielded when the cover is closed.
In addition, the insulating shell further comprises two metal grounding plates 7, the two ends of the insulating shell 1 are provided with grounding sockets 6, and each metal grounding plate 7 is respectively inserted and limited in the corresponding grounding socket 6. Specifically, each metal grounding plate 7 includes a base portion 71, a bent portion 72, and a contact portion 73. Wherein:
the base portion 71 is a bearing structure, and both ends thereof are connected to the bending portion 72 and the contact portion 73, respectively;
the bending portion 72 is connected to one end of the base portion 71 and bends upward of the base portion 71, and the bending portion 72 has elasticity and tends to expand upward by its own elastic force;
the contact portion 73 is connected with the other end of the base portion 71 opposite to the bending portion 72, the contact portion 73 is located at the side of the base portion 71, and a positioning bending section 8 which is bent downwards and transited is arranged between the contact portion 73 and the base portion 71.
Meanwhile, the contact part 73 extends to the bottom surface of the insulating housing 1 and is exposed out of the bottom surface of the insulating housing 1, and the contact part 73 can be welded on the circuit board and is grounded together with the ground wire on the circuit board, so that interference among signals is reduced, and signal integrity is ensured. The metal grounding plate 7 is a copper sheet, and the surface of the metal grounding plate is copper, so that the surface resistance can be effectively reduced, and the loss generated during current transmission can be improved.
In addition, a plurality of clamping protrusions 710 which are in contact with the inner wall of the grounding jack 6 are arranged on one side of the base body 71, and friction resistance between the base body 71 and the grounding jack 6 can be increased through the clamping protrusions 710, so that the fixing effect is enhanced.
The longitudinal direction of the connection portion 50 of each terminal pin 5 coincides with the direction in which the terminal pin 5 is inserted into the terminal pin mounting hole 4, and the contact portion 73 of each metal grounding piece 7 and the connection portion 50 of each terminal pin 5 are located on the same plane. The embodiment can be welded on the circuit board through the SMT automatic chip mounter, and the production efficiency is improved.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (1)
1. An FPC/FFC connector comprising:
an insulating shell (1), wherein one side of the insulating shell (1) is provided with an inserting port (2) for inserting an FPC or FFC flat cable, and a plurality of terminal pin mounting holes (4) are arranged at intervals on the other side of the insulating shell (1);
the connecting terminal comprises a plurality of terminal pins (5), each terminal pin (5) is inserted into a corresponding terminal pin mounting hole (4) and extends to the insertion port (2), each terminal pin (5) is provided with a connecting part (50) extending to the bottom surface of the insulating shell (1), and each connecting part (50) is welded on the circuit board and forms signal interaction with the circuit board;
the insulation cover (3) is respectively provided with a rotating shaft at two ends, the insulation cover (3) is arranged on the insulation shell (1) in a turnover way through the rotating shafts at two ends, and the FPC or FFC flat cable is shielded when the cover is closed; the method is characterized in that:
the circuit board grounding device further comprises two metal grounding plates (7), wherein grounding sockets (6) are formed at two ends of the insulating shell (1), the metal grounding plates (7) are respectively inserted into and limited in the corresponding grounding sockets (6), the metal grounding plates (7) are provided with contact parts (73) extending to the bottom surface of the insulating shell (1), and the contact parts (73) can be welded on the circuit board and form common grounding with the circuit board;
each of the metal grounding pieces (7) comprises:
a base body portion (71) as a carrying structure;
a bending part (72) connected with one end of the base part (71) and bending upwards the base part (71), wherein the bending part (72) has elasticity and tends to be upwards expanded by self elastic acting force;
the other end of the base body part (71) opposite to the bending part (72) is connected with the contact part (73), the contact part (73) is positioned at the side of the base body part (71), and a positioning bending section (8) of downward bending transition is arranged between the contact part (73) and the base body part (71);
one side of the base body part (71) is provided with a plurality of clamping bulges (710) which are abutted against the inner wall of the grounding socket (6);
the length direction of the connecting part (50) of each terminal pin (5) is consistent with the direction of the terminal pin (5) inserted into the terminal pin mounting hole (4), and the contact part (73) of each metal grounding piece (7) and the connecting part (50) of each terminal pin (5) are positioned on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036999.8A CN109687188B (en) | 2019-01-15 | 2019-01-15 | FPC/FFC connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036999.8A CN109687188B (en) | 2019-01-15 | 2019-01-15 | FPC/FFC connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109687188A CN109687188A (en) | 2019-04-26 |
| CN109687188B true CN109687188B (en) | 2024-01-23 |
Family
ID=66193145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910036999.8A Active CN109687188B (en) | 2019-01-15 | 2019-01-15 | FPC/FFC connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687188B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824865B (en) * | 2019-06-13 | 2024-02-06 | 昆山赫斯泰机械科技有限公司 | FFC interface pitch conversion connector |
| CN113347845B (en) * | 2021-07-01 | 2023-07-18 | 深圳威迈斯新能源股份有限公司 | Side-mounted PCB grounding structure and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3130669U (en) * | 2006-05-08 | 2007-04-05 | 良維科技股▲ふん▼有限公司 | Electrical connector |
| CN102176577A (en) * | 2011-02-24 | 2011-09-07 | 颜裕峰 | Structure of cover plate of connector |
| CN203607636U (en) * | 2013-11-27 | 2014-05-21 | 昆山宏泽电子有限公司 | Connector for flat conductors |
| TWM516256U (en) * | 2015-09-03 | 2016-01-21 | Fullconn Industry Inc | Grounding structure of cap type connector |
| CN205004548U (en) * | 2015-08-31 | 2016-01-27 | 松富电子(深圳)有限公司 | Ground structure of gland formula connector |
| CN108923149A (en) * | 2018-08-14 | 2018-11-30 | 苏州祥龙嘉业电子科技股份有限公司 | A kind of rear turning type FPC connector |
| CN209344359U (en) * | 2019-01-15 | 2019-09-03 | 乐清市华宝电子有限公司 | A kind of FPC/FFC connector |
-
2019
- 2019-01-15 CN CN201910036999.8A patent/CN109687188B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3130669U (en) * | 2006-05-08 | 2007-04-05 | 良維科技股▲ふん▼有限公司 | Electrical connector |
| CN102176577A (en) * | 2011-02-24 | 2011-09-07 | 颜裕峰 | Structure of cover plate of connector |
| CN203607636U (en) * | 2013-11-27 | 2014-05-21 | 昆山宏泽电子有限公司 | Connector for flat conductors |
| CN205004548U (en) * | 2015-08-31 | 2016-01-27 | 松富电子(深圳)有限公司 | Ground structure of gland formula connector |
| TWM516256U (en) * | 2015-09-03 | 2016-01-21 | Fullconn Industry Inc | Grounding structure of cap type connector |
| CN108923149A (en) * | 2018-08-14 | 2018-11-30 | 苏州祥龙嘉业电子科技股份有限公司 | A kind of rear turning type FPC connector |
| CN209344359U (en) * | 2019-01-15 | 2019-09-03 | 乐清市华宝电子有限公司 | A kind of FPC/FFC connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109687188A (en) | 2019-04-26 |
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