CN109643861B - FFC/FPC connector for high-speed signal transmission - Google Patents
FFC/FPC connector for high-speed signal transmission Download PDFInfo
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- CN109643861B CN109643861B CN201780052384.3A CN201780052384A CN109643861B CN 109643861 B CN109643861 B CN 109643861B CN 201780052384 A CN201780052384 A CN 201780052384A CN 109643861 B CN109643861 B CN 109643861B
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 69
- 238000003780 insertion Methods 0.000 claims abstract description 49
- 230000037431 insertion Effects 0.000 claims abstract description 49
- 239000002184 metal Substances 0.000 claims abstract description 26
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 14
- 238000010168 coupling process Methods 0.000 description 14
- 238000005859 coupling reaction Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- 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
-
- 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
- H01R12/82—Coupling devices connected with low or zero insertion force
- H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
- H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
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- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
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- 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
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- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to an FFC/FPC connector capable of realizing thinning by minimizing the thickness of a contact terminal and realizing high-speed transmission by minimizing the generation of eddy current of a signal transmitted through the contact terminal. The FFC/FPC connector for high-rate signal transmission of the present invention comprises: a base having a cable insertion port formed at a front thereof and having a plurality of terminal insertion ports formed at a rear thereof; a plurality of contact terminals inserted into the terminal insertion ports and electrically connecting a cable inserted into the cable insertion ports with a substrate to transmit signals; a pair of mounting nails for fixing the base to the substrate when both sides of the base are soldered to the substrate; an actuator provided on an upper portion of the base, and including a main body portion for pressing the cable and a rotation portion for rotating the main body portion at a rear portion of the main body portion, thereby fixing/unfixing the cable inserted into the base by performing rotation; and a metal case coupled to the base at a rear portion of the actuator to prevent movement of the actuator caused by rotation, wherein the cable and the contact terminal are brought into/out of contact with/from each other by rotation of the actuator, so that signal transmission between the cable and the substrate is enabled.
Description
Cross Reference to Related Applications
This application claims priority to korean patent application KR10-2016-0110854, filed on 30.8.2016, which is incorporated herein by reference in its entirety.
Technical Field
The present invention relates to a Flexible Flat Cable (FFC)/flexible printed circuit board (FPC) connector, and more particularly, to an FFC/FPC connector capable of realizing slimness (slimness) by minimizing the thickness of a contact terminal and high-speed transmission by minimizing the generation of eddy current (vortex) of a signal transmitted through the contact terminal.
Background
With recent miniaturization of electronic products and development for improved performance, a greater number of electronic components are arranged on a Printed Circuit Board (PCB), and thus, a plurality of signals are input to or output from the products in parallel. In order to electrically connect these components, a Flexible Flat Cable (FFC), a Flexible Printed Circuit (FPC), or the like is widely used. The FFC or FPC (hereinafter referred to as a "cable") forms one cable by arranging a plurality of electrodes in parallel, and has a characteristic of a high degree of freedom of design as compared with a hard (hard) PCB. Such a cable is detachably connected to a connector mounted on a substrate and electrically connected to the substrate via the connector.
Fig. 1 is a perspective view showing a related art connector, and fig. 2 is a sectional view showing a coupling structure of a contact terminal of the connector shown in fig. 1.
As shown in fig. 1, the connector 1 is mounted on a substrate 3 of an electronic component, and a cable 2 is inserted into one side thereof to electrically connect the cable 2 and the substrate 3. This connector 1 includes: a base 10 having a plurality of terminal insertion ports formed at one side thereof; a plurality of contact terminals 20 arranged at a prescribed interval along a longitudinal direction of the base 10 to be coupled to the plurality of terminal insertion ports; an actuator 30 that rotates to fix/unfixed the cable 2 to/from the base 10 and simultaneously brings/separates the cable 2 and the contact terminal 20 into/from contact with/from the contact terminal 20; and a fastening nail (40) for fixing the base 10 to the substrate 3.
As shown in fig. 2, each contact terminal 20 includes: a front portion divided into a lower contact portion 21 contacting the cable 2 and an upper support portion 22 for fixing a rotation shaft 31 of the actuator 30; and a rear portion having a substrate contact point portion 23 protruding therefrom to a lower side to be in contact with the substrate 3. The substrate contact point portion 23 forms a contact point with the substrate 3 by a method such as a surface mounting technique, thereby fixing the contact terminal 20 to the substrate 3.
The contact terminal 20 having the above-described configuration electrically connects the cable 2 and the substrate 3 through the lower contact portion 21 and the substrate contact point portion 23, so that signals are transmitted. However, since the lower contact portion 21 and the upper support portion 22 of the contact terminal 20 have complicated shapes, a signal input to the substrate contact portion 23 is not directly transmitted to the cable 2 through the lower contact portion 21 but passes through the upper support portion 22, which causes signal reflection. The signal reflection phenomenon caused by the upper support part 22 interferes with high-speed transmission of signals, and there is a problem that the contact terminal 20 having the above-described shape is not suitable for a connector for high-speed transmission.
Further, the connector 1 of the related art restricts (regulates) the actuator 30 for fixing or unfixing the cable 2 at the contact terminal 20. As shown in the drawings, the rotation shaft 31 of the actuator 30 is fixed to an insertion recess 24 formed on the upper support part 22 of the contact terminal 20, and the cross section of the rotation shaft 31 forms a cam structure such that a rotation in a horizontal direction or a vertical direction is restricted by the upper support part 22 providing a pressure applied to a lower side. However, the above-described connector 1 of the related art has a problem in that a contact force applied from the rotating shaft 31 to the upper support portion 22 is transmitted to the substrate contact point portion 23 according to the rotation of the actuator 30, and the contact point between the substrate contact point portion 23 and the substrate 3 is affected by the contact force according to the repeated rotation of the actuator 30, and thus a contact point failure is generated or even the contact point is broken.
Patent document 0001: korean utility model registration patent KR20-0460172 (8/27/2012 entitled "connector for high rate signal transmission")
Patent document 0002: korean Utility model registration patent KR10-1378702 (3/20/2014 registration named "electric connector")
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an FFC/FPC connector for high-rate signal transmission, which can realize high-speed transmission by preventing a signal reflection phenomenon in a process of transmitting a signal between a cable and a substrate.
Further, another object of the present invention is to provide an FFC/FPC connector for high-rate signal transmission, which facilitates the realization of thinning and the reduction of noise by minimizing the height of a contact terminal and a ground terminal for transmitting signals.
It is still another object of the present invention to provide an FFC/FPC connector for high-speed signal transmission capable of preventing a contact point failure or a contact point damage of a contact terminal caused by rotation of an actuator by preventing the rotation of the actuator for fixing or releasing a fixed cable from affecting the contact terminal.
In order to achieve the above object, an FFC/FPC connector for high-rate signal transmission of the present invention comprises: a base having a cable insertion port formed at a front portion thereof and having a plurality of terminal insertion ports formed at a rear portion thereof; a plurality of contact terminals, each contact terminal comprising: a cable contact point inserted into the terminal insertion port at the rear of the base and contacting a signal pad of a cable; and a substrate contact point portion extending toward a rear portion of the cable contact point portion and soldered to a substrate, the plurality of contact terminals electrically connecting the cable inserted into the cable insertion port and the substrate to transmit signals; a pair of mounting nails for fixing the base to the substrate when both sides of the base are soldered to the substrate; an actuator provided at an upper portion of the base, and including a main body portion and a rotation portion pressing the cable, the rotation portion including a plurality of case insertion ports formed at a lower portion of the main body portion and a rotation shaft formed at each case insertion port in a longitudinal direction and forming a rotation center of the main body portion, the actuator fixing/unfixing the cable inserted into the base by performing rotation; a metal shell joined to the base at a lower portion of the actuator and comprising: a frame portion formed along a longitudinal direction; a case fixing portion extending from both ends of the frame portion to a lower portion while forming a step portion, and welded to the substrate; and a plurality of restricting portions protruding with respect to a front portion of the frame portion while forming a gap therebetween in a longitudinal direction, and inserted into corresponding housing insertion ports of the actuator to press the rotation shaft, the metal housing for preventing movement of the actuator caused by rotation; and a plurality of ground terminals inserted into the terminal insertion ports at the rear of the base and contacting the cables inserted into the cable insertion ports to eliminate abnormal signals through the substrate.
In this example, each of the restrictions of the metal shell may include: a restricting arm projecting and extending from a front portion of the frame portion; a locking piece bent downward from a front end of the restricting arm; and a support piece extending to one side of the restriction arm, the support piece being located at a position that ensures a space with the locking piece, and the support piece having one end bent downward. Each of the restricting portions may be configured to restrict upward, forward, and rearward movements of the rotation shaft located at the restricting arm and the space between the locking piece and the support piece.
Further, each of the housing insertion ports of the actuator may include a support piece hiding recess formed by recessing a portion of the body portion to prevent the support piece and the body portion from colliding with each other.
Further, each mounting peg may include: a nail fixing part horizontally extending from a lower end of a vertical connection part to an outer side; a pressing part horizontally extending from an upper end of the vertical connecting part to an inner side; a first locking portion bent from one end of an inner side of the pressing portion and extending downward, and maintaining a closed state of the actuator; and a second locking portion which extends horizontally from a rear end of the pressing portion to a rear portion and maintains an open state of the actuator.
Further, each ground terminal may include: a shield contact portion inserted into the terminal insertion port at the rear of the base and contacting a shield pad at an upper portion of the cable; a hook portion protruding to a front at a lower portion spaced apart from the shield contact portion and coupled to the base; and a ground contact point portion extending from a connection portion of the shield contact point portion and the hook portion toward a rear portion and soldered to the substrate. The actuator may have a terminal hiding recess formed by recessing a portion of the main body portion to prevent collision with the shield contact point portion when the ground terminal is inserted at the rear of the base.
The present invention gives the following effects.
According to the present invention having the above-mentioned configuration, the contact terminal for transmitting a signal formed between the cable and the substrate is formed in a shape of a straight line extending lengthwise from the front to the rear, so that there is an effect of eliminating and minimizing a reflection or eddy current phenomenon of a signal transmitted inside the contact terminal, and high-speed signal transmission can be realized.
Further, according to the present invention, the contact terminal is formed in a straight line shape extending lengthwise from the front to the rear, and therefore the height of the terminal can be reduced, and finally, the overall thickness of the connector can be reduced. Therefore, a thin cable connector can be realized.
Further, since the contact terminal and the ground terminal are coupled at the rear of the housing, the present invention has an effect of easily assembling the connector.
Further, according to the present invention, since the contact terminal is not affected by the rotation of the actuator, a contact point failure does not occur between the contact terminal and the substrate.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a perspective view showing a related art connector;
fig. 2 is a sectional view showing a coupling structure of a contact terminal of the connector shown in fig. 1;
FIG. 3 is a perspective view illustrating a connector in a coupled state in accordance with an exemplary embodiment of the present invention;
fig. 4 is an exploded perspective view showing the connector shown in fig. 3;
fig. 5 is a cross-sectional view showing a coupling structure of a contact terminal of the connector according to an exemplary embodiment of the present invention;
fig. 6 is a sectional view partially showing a coupling structure of an actuator and a metal shell of the connector according to an exemplary embodiment of the present invention;
fig. 7 is a perspective view illustrating a metal shell of a connector according to an exemplary embodiment of the present invention;
fig. 8 is a cut-away view partially showing a coupling structure of an actuator and a metal shell of a connector viewed from a different direction according to an exemplary embodiment of the present invention;
FIG. 9 is a perspective view illustrating a mounting nail of the connector according to an exemplary embodiment of the present invention;
fig. 10A and 10B are enlarged views illustrating a first locking structure of an actuator of a connector according to an exemplary embodiment of the present invention;
fig. 11 is an enlarged view illustrating a second locking structure of the actuator of the connector according to an exemplary embodiment of the present invention;
fig. 12 is an enlarged view illustrating a coupling structure of a ground terminal according to an exemplary embodiment of the present invention; and
fig. 13 is a sectional view illustrating a coupling structure of a contact terminal of a connector according to an exemplary embodiment of the present invention.
Detailed Description
The technical objects achieved by the present invention and the embodiments of the present invention will be apparent from preferred embodiments to be described below. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 3 is a perspective view illustrating a connector in a coupled state according to an exemplary embodiment of the present invention, fig. 4 is an exploded perspective view illustrating the connector shown in fig. 3, and fig. 5 is a sectional view illustrating the connector shown in fig. 3 in the coupled state.
First, as shown in fig. 3 and 4, the FFC connector of the present invention includes a base 100, a plurality of contact terminals 200, a plurality of ground terminals 300, a plurality of mounting nails 400, an actuator 500, and a metal shell 600. The connector having the above-described configuration may be mounted on a substrate 3 on which a predetermined circuit is printed, and a cable 2 inserted into one side thereof may be connected to the substrate 3 while fixing the connection of the cable 2 to allow various signals to be transmitted therebetween (hereinafter, one side of the cable connection will be referred to as a "front portion" and the opposite side thereof will be referred to as a "rear portion").
Specifically, the base 100 is configured to form a body of the connector, and is provided with a plurality of terminal insertion ports 110 into which a plurality of contact terminals 200 are inserted. A plurality of terminal insertion ports 110 may be formed at intervals from each other in a horizontal direction at a predetermined interval so that the corresponding contact terminals 200 are coupled thereto, and the ground terminal 300 may be coupled to the outermost terminal insertion port 110. The rear of the base 100 is open and the plurality of terminal insertion ports 110 are configured to allow the plurality of contact terminals 200 and the plurality of ground terminals 300 to be coupled thereto through the rear of the base 100. Such a base 100 is formed of a non-conductive synthetic resin to electrically insulate the corresponding contact terminal 200.
In addition, the base 100 may include a guide cover (not shown) formed at the front of the cable 2 insertion to guide the insertion of the cable 2.
The contact terminal 200 is configured to electrically connect and transmit signals between the cable 2 and the substrate 3, and is inserted into a corresponding terminal insertion port 110 of the base 100 and disposed on the base 100. The plurality of contact terminals 200 are formed of conductive metal, and a front end (front terminal) of each contact terminal 200 forms a cable contact point portion 210 contacting a signal pad of a lower surface of the cable 2 and a rear end (rear terminal) forms a substrate contact point portion 220 contacting a signal electrode of the substrate 3. Thus, the contact terminal 200 electrically connects the cable 2 and the substrate 3 and serves as a path for transmitting signals therebetween.
The plurality of ground terminals 300 are configured to cancel (discharge) abnormal signals such as electromagnetic interference (EMI), noise, etc., generated in the cable 2 to the substrate 3, and are inserted into the terminal insertion ports 110 formed at both sides of the base 100 and coupled to the base 100. The plurality of ground terminals 300 are formed of conductive metal, and a front end of each ground terminal 300 forms a shield contact portion 310 contacting a shield pad of an upper surface of the cable 2 and a rear end forms a ground contact portion 320 contacting a ground electrode of the substrate 3. Such a ground terminal 300 absorbs an abnormal signal generated in the cable 2 and eliminates it through the substrate 3.
The plurality of mounting pegs 400 are configured to secure the base 100 to the substrate 3 and ultimately the connector to the substrate 3, as the base 100 forms the body of the connector. Each of the mounting nails 400 includes: a nail fixing part 420 formed at the lower end of the outer side thereof for fixing to the base plate 3; and a pressing portion 430 formed at an upper end of an inner side thereof to press the base 100. Further, the mounting nail 400 can keep the actuator 500 closed or open so as to allow the cable 2 to stably enter the contact terminal 200 and the ground terminal 300 or to allow the cable 2 to be easily inserted into the base 100. To do so, the mounting nail 400 further includes a first locking portion 440 and a second locking portion 450 for securing the actuator 500.
The mounting nail 400 having the above-described configuration is coupled to the substrate 3 by welding at both sides of the base 100, thereby fixing the base 100.
The actuator 500 is configured to fix/unfixed the cable 2 to/from the base 100 by performing rotation while contacting/detaching the cable 2 to/from the contact terminal 200 and is coupled to an upper portion of the base 100 at a rear end thereof to serve as a rotation shaft. Such an actuator 500 includes a main body portion 510 formed at a front portion thereof to press the cable 2 and a rotation portion 520 formed at a rear portion thereof to rotate the main body portion 510, and the rotation portion 520 includes: a plurality of case insertion ports 521, to which the metal case 600 is coupled; and a shaft 522.
The metal case 600 is configured to fix the actuator 500 to the base 100, and includes: a frame portion 610 formed in a longitudinal direction facing both sides of the base 100, case fixing portions 620 formed at both ends of the frame portion 610 to be welded to the substrate 3, and a restricting portion 630 protruding to a front portion of the frame portion 610 to restrict the actuator 500. The plurality of restricting parts 630 are spaced apart from each other at a predetermined interval in the longitudinal direction and are respectively inserted into the plurality of case insertion ports 521 of the actuator 500 to prevent the actuator 500 from moving.
The FFC connector having the above-described configuration allows the cable 2 to be fixed to or released from the base 100 while allowing the cable 2 to be in contact with or separated from the contact and ground terminals 200 and 300, depending on whether the actuator 500 is rotated or not. In this case, a signal pad 2a for transmitting a signal is formed on the lower surface of the cable 2, and a shielding pad 2b for blocking (block) EMI or noise is formed on the upper surface of the cable 2, and the contact terminal 200 and the ground terminal 300 are brought into contact with the signal pad 2a and the shielding pad 2b or are separated from the signal pad 2a and the shielding pad 2b, respectively. The coupling structure and operation of the respective components will be described in detail below.
Fig. 5 is a sectional view showing a coupling structure of a contact terminal of the connector according to an exemplary embodiment of the present invention.
As shown in the drawings, the contact terminal 200 of the present invention is formed of a conductive metal, and the cable contact point portion 210 of the front end and the substrate contact point portion 220 of the rear end are configured to have a predetermined length from the front to the rear via a connection portion 230 at the center. The cable contact point portion 210 may include one or more contact protrusions 211 protruding upward from the front end to improve the contact rate with the signal pad 2 a.
The contact terminal 200 is formed in a substantially linear shape in which the cable contact point portion 210 and the substrate contact point portion 220 form a predetermined stepped portion in a vertical direction, the cable contact point portion 210 is inserted into the terminal insertion port 110 of the base 100 to face the front, and the substrate contact point portion 220 at the rear is in contact with the substrate 3 and fixed to the substrate 3.
The connector having the contact terminal 200 configured as described above fixes the cable 2 by rotating the actuator 500 to the front (i.e., laterally rotating) with the cable 2 inserted into the base 100 while bringing the contact terminal 200 into contact with the signal pad 2 a. In this state, the substrate 3 and the cable 2 are electrically connected to each other, transmitting a signal, and the signal of the substrate 3 is transmitted to the cable 2 by passing through the contact terminal 200. In this case, since the contact terminal 200 forms a signal moving path in a substantially linear shape, no signal reflection or eddy current phenomenon occurs in the contact terminal 200, so that high-rate signal transmission can be realized.
Further, since the contact terminal 200 having the above-described configuration is formed in a substantially straight line in a state where the cable contact point portion 210 and the substrate contact point portion 220 form a minimum step portion, the height of the contact terminal 200 is minimized and the entire thickness of the connector can be reduced.
Fig. 6 is a cut-away view partially showing a coupling structure of an actuator and a metal shell of a connector according to an exemplary embodiment of the present invention, fig. 7 is a perspective view showing the metal shell of the connector according to an exemplary embodiment of the present invention, and fig. 8 is a cut-away view partially showing the coupling structure of the actuator and the metal shell of the connector viewed from a different direction according to an exemplary embodiment of the present invention.
Referring to these drawings, the actuator 500 of the present invention includes a main body portion 510 formed lengthwise (lengthways) in the longitudinal direction of the base 100 at the front portion thereof to press the cable 2, and a rotation portion 520 formed at the rear portion thereof to rotate the main body portion 510 at the rear end of the main body portion 510. The rotating part 520 of the actuator 500 has a plurality of case insertion ports 521 arranged at predetermined intervals to allow a plurality of restricting parts 630 of the metal case 600 to be inserted therein, and rotating shafts 522 connected to the corresponding case insertion ports 521 and formed in the longitudinal direction (y-direction).
The metal case 600 of the present invention includes: a frame portion 610 formed in the longitudinal direction (y direction); a case fixing part 620 extended downward from both ends of the frame part 610 and bent in a horizontal direction to be welded to the substrate 3; and a plurality of restriction portions 630 arranged at a predetermined interval in the longitudinal direction and protruding to the front portion (x direction) of the frame portion 610.
The frame portion 610 is formed to have a predetermined length in the longitudinal direction (y-direction) of the base 100, and connects the plurality of restriction portions 630 to each other. The case fixing part 620 has a lower surface welded to the base plate 3 in a horizontal direction so that the metal case 600 is fixed to the base plate 3, and the restricting part 630 is inserted into the case insertion port 521 of the actuator 500 to prevent movement of the actuator 500 due to rotation.
The plurality of restrictions 630 may be formed at predetermined intervals to correspond to positions of the plurality of shell insertion ports 521 of the actuator 500, and each restriction 630 may include: a restricting arm 631 protruding and extending with respect to the front of the frame 610; a locking piece 632 bent downward from the front end of the restricting arm 631; and a support blade 633 extending to one side of the regulating arm 631 and having one end bent downward. In this case, the support plate 633 is formed at a position that secures a predetermined space (g) with the lock plate 632, and the rotation shaft 522 is inserted into the space (g).
When the restriction 630 is inserted into the housing insertion port 521 of the actuator 500, the metal housing 600 is coupled and is coupled to allow the rotation shaft 522 to be located in a space (g) between the locking piece 632 and the support piece 633 at the lower side of the restriction arm 631. In the above-described coupling structure, the rotation shaft 522 of the actuator 500 is pressed from the upper side by the restriction arm 631 and thus is prevented from moving upward (z direction), and the rotation shaft 522 of the actuator 500 is locked by the front locking piece 632 and thus is prevented from moving forward (x direction), and the rotation shaft 522 of the actuator 500 is supported by the rear supporting piece 633 and thus is prevented from moving backward (-x direction). Therefore, the restriction part 630 of the metal case 600 restricts the rotation shaft 522 to be located at a correct position and prevents the movement of the actuator 500 due to the rotation, and as a result, the restriction part 630 can prevent poor contact between the cable 2 and the contact terminal 200, which may be caused by the movement of the actuator 500.
Meanwhile, the actuator 500 of the present invention is configured to be easily assembled with the metal case 600 and to be smoothly rotated.
Referring to fig. 8, a supporting sheet hiding recess 523 is formed in the case insertion port 521 by recessing a portion of the main body portion 510 in a supporting sheet direction (-y direction) to hide the supporting sheet 633 of the restriction portion 630. In a state where the actuator 500 is rotated to the front (i.e., a closed state), the support sheet 633 does not collide with the main body portion 510 of the actuator 500, but in a state where the actuator 500 is rotated to the upper side (i.e., an open state), the support sheet 633 protruding to the side of the restricting arm 631 may collide with the rear end of the main body portion 510 and interfere with the rotation of the actuator 500. Accordingly, since the support sheet 633 is hidden in the support sheet hiding recess 523 when the actuator 500 of the present invention is rotated to the upper side, the actuator 500 may be easily rotated without interference with the support sheet 633.
Fig. 9 is a perspective view illustrating a mounting nail of a connector according to an exemplary embodiment of the present invention, and fig. 10 and 11 are enlarged views illustrating a locking structure of an actuator of a connector according to an exemplary embodiment of the present invention, and correspondingly illustrate structures of locking the actuator in a closed state and an open state.
First, referring to fig. 9, the mounting nail 400 according to an exemplary embodiment of the present invention may be formed of a metal frame having a predetermined rigidity, and include a connecting portion 410 formed in a vertical direction, a nail fixing portion 420 horizontally extending outward from a lower end of the connecting portion 410, a pressing portion 430 horizontally extending inward from an upper end of the connecting portion 410, a first locking portion 440 bent and downwardly extending from an end of an inner side of the pressing portion 430, and a second locking portion 450 horizontally extending rearward from a rear end of the pressing portion 430.
In this example, the nail fixing part 420 is configured to fix the mounting nail 400 to the substrate 3 with the lower surface soldered to a predetermined area of the substrate 3, and the pressing part 430 fixes the susceptor 100 to the substrate 3 by pressing the upper surface of one side part of the susceptor 100 when the nail fixing part 420 is soldered to the substrate 3.
The first locking part 440 is configured to lock the actuator 500 to maintain a closed state (i.e., a laterally rotated state) of the actuator 500, and a guide protrusion 441 and a locking recess 442 are formed on a contact surface bent from a front position of the pressing part 430 and extended to a lower side and contacting the actuator 500. The guide protrusion 441 is formed in a curved shape that is convex with respect to a downward direction, and the locking recess 442 is continuous with the guide protrusion 441 and forms a relatively concave groove shape (receive shape).
Meanwhile, as shown in fig. 10A and 10B, the actuator 500 has a protruding locking protrusion 530 formed on one side surface thereof. The locking protrusion 530 corresponds to the locking recess 442 of the first locking part 440, and has an upper surface and a lower surface forming a convexly curved or inclined surface.
In the present invention having the above-described configuration, as shown in fig. 10B, in the closed state of the actuator 500, the locking protrusion 530 is located in the locking recess 442, and the locking protrusion 530 is prevented from moving upward by the guide protrusion 441. Therefore, the actuator 500 may be maintained in the closed state as long as a certain external force is not forcibly applied to the body part 510 in the closed state.
Further, the guide protrusion 441 and the locking protrusion 530 form a convex curved surface or an inclined surface in a vertical direction, so that the locking protrusion 530 can be easily inserted into or withdrawn from the locking recess 442 along the curved surface of the guide protrusion 441 when the actuator 500 is closed or opened.
The second locking part 450 is configured to lock the actuator 500 to maintain an open state (i.e., a longitudinally rotated state) of the actuator 500, and has a fixed end 451 formed at a front end thereof, extending to the rear of the pressing part 430 by a predetermined length, and connected to the pressing part 430, and a free end 452 formed at a rear end thereof. The free end 452 of such a second locking portion 450 has a predetermined elasticity in the vertical direction with respect to the fixed end 451 serving as an axis.
Meanwhile, the actuator 500 includes a locking shaft 540 extending from the rotation shaft 522 to one side portion, and the locking shaft 540 has a pair of shaft protrusion portions 541 spaced apart from each other by a predetermined distance in a circumferential direction. The pair of shaft protrusion portions 541 are in contact with the lower surface of the second locking portion 450 and are elastically pressed by the free ends 452 in the open state of the actuator 500, and the actuator 500 is prevented from rotating in the open state due to the distance between the shaft protrusion portions 541. Therefore, the actuator 500 may be maintained in the open state as long as a certain external force is not forcibly applied to the body part 510 in the open state. In this case, the pair of shaft protrusions 541 spaced apart from each other may be connected to each other to be planar by each other.
The mounting nail 400 having the above-described configuration is coupled to the base plate 3 at both sides of the base 100, and the actuator 500 is locked at both sides in a closed state or an open state.
Fig. 12 is an enlarged view illustrating a coupling structure of a ground terminal according to an exemplary embodiment of the present invention, and fig. 13 is a sectional view illustrating the coupling structure of the contact terminal of the connector according to an exemplary embodiment of the present invention.
As shown in these figures, the ground terminal 300 of the present invention includes a shield contact portion 310 contacting the cable 2, a hook portion 330 preventing the separation from the base 100, a ground contact portion 320 contacting the substrate 3, and a connection portion 340 connecting all of the foregoing.
The shielding contact point part 310 protrudes to the front and is in contact with the shielding pad 2b of the cable 2, thereby eliminating EMI and noise signals generated in the cable 2 to the substrate 3 through the ground contact point part 320. The shield contact point part 310 may include one or more contact protrusions 311 protruding to a lower portion of a front end thereof to improve a contact rate with the shield pad 2 b.
The hook part 330 is spaced apart from the shield contact point part 310 by a predetermined distance below the shield contact point part 310 and protrudes forward, and may include one or more hook protrusions 331 protruding to an upper portion of a front end thereof. The hook 330 is inserted into the outermost terminal insertion port 110 at both sides of the base 100 by tight fitting (light fitting), thereby fixing the ground terminal 300 to the base 100 and preventing the ground terminal 300 from coming off. In this case, a hook recess 332 corresponding to the hook protrusion 331 is formed on the base 100 so that the ground terminal 300 can be prevented from being disengaged by the engagement of the hook protrusion 331 and the hook recess 332.
The ground contact point part 320 is formed by extending from the shield contact point part 310 and the connection part 340 of the hook part 330 to the rear part, and is soldered to a ground electrode of the substrate 3.
Meanwhile, the actuator 500 has: a shield insertion port 550 for allowing the shield contact point portion 310 of the ground terminal 300 to be inserted therein; and a shielding protrusion 551 formed on the shield insertion port 550 to press the shield contact part 310 in a closed state and make the shield contact part 310 contact with the upper surface of the cable 2. Further, the actuator 500 has a terminal hiding recess 552 formed by recessing a portion of the main body portion 510 so as to prevent collision with the shield contact point portion 310 when the ground terminal 300 is assembled at the rear of the base 100 in the opened state. Therefore, since the ground terminal 300 is not affected by the actuator 500 at the time of assembly, and particularly, is easily assembled at the rear of the base 100 at the same time as the assembly process of the contact terminal 200, assemblability can be enhanced.
The ground terminal 300 having the above-described configuration is assembled with the base 100 at both sides of the base 100 to eliminate EMI and noise signals of the cable 2 to the substrate 3, and may also be assembled at a predetermined position in the middle of the connector according to the length of the connector.
While the invention has been described with reference to an embodiment, it will be understood by those skilled in the relevant art that various changes may be made and other equivalent embodiments may be possible.
Claims (5)
1. An FFC/FPC connector for high rate signal transmission, comprising:
a base having a cable insertion port formed at a front portion thereof and having a plurality of terminal insertion ports formed at a rear portion thereof;
a plurality of contact terminals, each contact terminal comprising: a cable contact point inserted into the terminal insertion port at the rear of the base and contacting a signal pad of a cable; and a substrate contact point portion extending toward a rear portion of the cable contact point portion and soldered to a substrate, the plurality of contact terminals electrically connecting the cable inserted into the cable insertion port and the substrate to transmit signals;
a pair of mounting nails for fixing the base to the substrate when both sides of the base are soldered to the substrate;
an actuator provided at an upper portion of the base, and including a main body portion and a rotation portion pressing the cable, the rotation portion including a plurality of case insertion ports formed at a lower portion of the main body portion and a rotation shaft formed at each case insertion port in a longitudinal direction and forming a rotation center of the main body portion, the actuator fixing/unfixing the cable inserted into the base by performing rotation;
a metal shell joined to the base at a lower portion of the actuator and comprising: a frame portion formed along a longitudinal direction; a case fixing portion extending from both ends of the frame portion to a lower portion while forming a step portion, and welded to the substrate; and a plurality of restricting portions protruding with respect to a front portion of the frame portion while forming a gap therebetween in a longitudinal direction, and inserted into corresponding housing insertion ports of the actuator to press the rotation shaft, the metal housing for preventing movement of the actuator caused by rotation; and
a plurality of ground terminals inserted into the terminal insertion ports at the rear of the base and contacting the cables inserted into the cable insertion ports to eliminate abnormal signals through the substrate,
wherein each of the restricting portions of the metal shell includes:
a restricting arm projecting and extending from a front portion of the frame portion;
a locking piece bent downward from a front end of the restricting arm; and
a support piece extending to one side of the restricting arm, the support piece being located at a position that ensures a space with the locking piece, and the support piece having one end bent downward,
wherein each of the restricting portions is configured to restrict upward, forward, and rearward movements of the rotating shaft located in the space between the restricting arm and the locking piece and the support piece.
2. The FFC/FPC connector for high-rate signal transmission according to claim 1, wherein each housing insertion port of the actuator includes a support piece hiding recess formed by recessing a portion of the main body portion to prevent the support piece and the main body portion from colliding with each other.
3. The FFC/FPC connector for high rate signal transmission according to claim 1, wherein each mounting nail comprises:
a nail fixing part horizontally extending from a lower end of a vertical connection part to an outer side;
a pressing part horizontally extending from an upper end of the vertical connecting part to an inner side;
a first locking portion bent from one end of an inner side of the pressing portion and extending downward, and maintaining a closed state of the actuator; and
a second locking portion horizontally extending from a rear end of the pressing portion toward a rear portion and maintaining an open state of the actuator.
4. The FFC/FPC connector for high rate signal transmission according to claim 1, wherein each ground terminal includes:
a shield contact portion inserted into the terminal insertion port at the rear of the base and contacting a shield pad at an upper portion of the cable;
a hook portion protruding to a front at a lower portion spaced apart from the shield contact portion and coupled to the base; and
a ground contact portion extending from a connection portion of the shield contact portion and the hook portion toward a rear portion and being soldered to the substrate.
5. The FFC/FPC connector for high-rate signal transmission according to claim 4, wherein the actuator has a terminal hiding recess formed by recessing a portion of the body portion to prevent collision against the shield contact point when the ground terminal is inserted at the rear of the chassis.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160110854A KR101862009B1 (en) | 2016-08-30 | 2016-08-30 | FFC/FPC for high speed signal transmission |
| KR10-2016-0110854 | 2016-08-30 | ||
| PCT/US2017/046693 WO2018044536A1 (en) | 2016-08-30 | 2017-08-14 | Ffc/fpc connector for high speed signal transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109643861A CN109643861A (en) | 2019-04-16 |
| CN109643861B true CN109643861B (en) | 2020-09-04 |
Family
ID=61301422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780052384.3A Expired - Fee Related CN109643861B (en) | 2016-08-30 | 2017-08-14 | FFC/FPC connector for high-speed signal transmission |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101862009B1 (en) |
| CN (1) | CN109643861B (en) |
| WO (1) | WO2018044536A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6976230B2 (en) * | 2018-07-27 | 2021-12-08 | 京セラ株式会社 | Cable connector |
| KR102246509B1 (en) * | 2020-07-20 | 2021-04-30 | (주)연호엠에스 | Electrical connector |
| CN111799593B (en) * | 2020-07-31 | 2024-07-30 | 富加宜电子（南通）有限公司 | LED connector with high retention |
| CN113871943B (en) * | 2021-10-18 | 2023-08-15 | 武汉市格力浦电子有限公司 | Medical cable connector structure |
| KR102810933B1 (en) | 2022-01-26 | 2025-05-22 | 이미경 | Flexible flat cable connector |
| CN114665306B (en) * | 2022-03-25 | 2024-02-20 | 鹤山市得润电子科技有限公司 | Connector and electronic equipment |
| KR102739521B1 (en) * | 2022-07-20 | 2024-12-05 | 엘지전자 주식회사 | Connector and display device including the same |
| CN115792565B (en) * | 2022-11-11 | 2024-10-11 | 东莞市虎山电子有限公司 | FPC test head with high integration level and production process thereof |
| WO2024168130A1 (en) * | 2023-02-10 | 2024-08-15 | Fci Usa Llc | Robust, miniaturized ffc connector |
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| CN1574504A (en) * | 2003-06-06 | 2005-02-02 | 大宏电机株式会社 | Connector |
| KR20110026031A (en) * | 2009-09-01 | 2011-03-15 | 한국몰렉스 주식회사 | High speed LVDS signal connector |
| KR20110121948A (en) * | 2010-05-03 | 2011-11-09 | 엘에스엠트론 주식회사 | Flat cable connector |
| KR20110121945A (en) * | 2010-05-03 | 2011-11-09 | 엘에스엠트론 주식회사 | Flat cable connection connector |
| CN102403606A (en) * | 2010-08-19 | 2012-04-04 | 日本航空电子工业株式会社 | Connector |
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|---|---|---|---|---|
| US6811439B1 (en) * | 2004-03-31 | 2004-11-02 | L & K Precision Technology Co., Ltd. | Thin connector |
| CN101764314B (en) * | 2008-12-23 | 2012-10-31 | 富士康(昆山)电脑接插件有限公司 | electrical connector |
| KR101101673B1 (en) * | 2010-01-21 | 2011-12-30 | 엘에스엠트론 주식회사 | Connector assembly for flat cable connection |
| KR101252682B1 (en) * | 2011-09-28 | 2013-04-12 | 한국몰렉스 주식회사 | Connector for Flexible Circuit Cable |
| TW201324975A (en) * | 2011-12-13 | 2013-06-16 | Aces Electronic Co Ltd | Electric connector |
| JP2015207520A (en) * | 2014-04-23 | 2015-11-19 | 第一精工株式会社 | Electrical connector |
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2016
- 2016-08-30 KR KR1020160110854A patent/KR101862009B1/en not_active Expired - Fee Related
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2017
- 2017-08-14 WO PCT/US2017/046693 patent/WO2018044536A1/en active Application Filing
- 2017-08-14 CN CN201780052384.3A patent/CN109643861B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574504A (en) * | 2003-06-06 | 2005-02-02 | 大宏电机株式会社 | Connector |
| KR20110026031A (en) * | 2009-09-01 | 2011-03-15 | 한국몰렉스 주식회사 | High speed LVDS signal connector |
| KR20110121948A (en) * | 2010-05-03 | 2011-11-09 | 엘에스엠트론 주식회사 | Flat cable connector |
| KR20110121945A (en) * | 2010-05-03 | 2011-11-09 | 엘에스엠트론 주식회사 | Flat cable connection connector |
| CN102403606A (en) * | 2010-08-19 | 2012-04-04 | 日本航空电子工业株式会社 | Connector |
| CN104685724A (en) * | 2012-08-03 | 2015-06-03 | Fci连接器新加坡私人有限公司 | Shielded flexible circuit connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018044536A1 (en) | 2018-03-08 |
| CN109643861A (en) | 2019-04-16 |
| KR20180024511A (en) | 2018-03-08 |
| KR101862009B1 (en) | 2018-05-29 |
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Granted publication date: 20200904 |