CN207732124U - FPC connector and its combo architectures with FPC circuits - Google Patents

Abstract

An FPC connector and its combined structure with FPC lines. The FPC connector arranges a plurality of terminals in front and back two rows, so as to expand the adjacent space when the width of the connector is limited and the number of terminals is fixed. The distance between the two terminals is to reduce the degree of electromagnetic coupling interference between adjacent two terminals when transmitting signals, and an intermediate electrical shield is added between the two rows of terminals to cooperate with the upper cover electrical shield to provide The shielding environment of the multi-dimensional space can reduce the degree of electromagnetic coupling interference between the two rows of terminals when transmitting signals. In addition, the terminals of the FPC connector of the present invention can be divided into signal conductive terminals and electrical shielding terminals, and the electrical shielding terminals provide electrical shielding between multiple signal conductive terminals to reduce the number of signal conductive terminals. The degree of electromagnetic coupling interference between each other when transmitting signals can provide high-frequency signal transmission.

Description

FPC connector and its combined structure with FPC circuit

【Technical field】

The present invention relates to an FPC connector and its combined structure with FPC lines, in particular, to an FPC connector that can reduce the degree of electromagnetic coupling interference during signal transmission for high-frequency signal transmission and its combination with Combination architecture of FPC lines.

【Background technique】

Flexible printed circuit board (Flexible Printed Circuit, referred to as FPC) has the characteristics of flexibility and three-dimensional space wiring. It can be connected with the circuit board with FPC connector. In recent years, it has been widely used in computers and peripheral equipment. , communication products and consumer electronics products, used to transmit electrical signals. However, the signal transmission of terminals of conventionally designed FPC connectors is often interfered by electromagnetic coupling, which cannot meet the high-speed signal transmission requirements of FPC in recent years.

For example, based on the development trend of light, thin and small, various electronic products have reduced the number of IO interfaces in recent years, so that the IO interface needs high-speed signal transmission, and if the FPC connector matched with the IO interface has poor electrical shielding effect, It will have a negative impact on the transmission effect of high-speed signals. Therefore, how to improve the above-mentioned deficiencies and improve the electrical shielding effect of the FPC connector so that the FPC connector can be used for high-speed signal transmission is an urgent need for those in the technical field to solve The problem.

【Content of utility model】

In view of the above-mentioned shortcomings of the prior art, the present invention provides a combination structure of an FPC connector and FPC circuit, including: an FPC connector, the FPC connector includes: a first row of terminal groups, the first row of terminal groups There are a plurality of first signal conductive terminals and a plurality of first electrical shielding terminals, each first signal conductive terminal is used to transmit electrical signals respectively, and each first electrical shielding terminal is respectively located in the plurality of first signal conductive terminals Between the two, to provide electrical shielding between the two of the plurality of first signal conductive terminals; the second row of terminal groups, the second row of terminal groups has a plurality of second signal conductive terminals and a plurality of first conductive terminals Two electrical shielding terminals, each second signal conductive terminal is used to respectively transmit electrical signals, and each second electrical shielding terminal is respectively located between two of the plurality of second signal conductive terminals, so as to be connected between the plurality of second signal conductive terminals. Electrical shielding is provided between two of the signal conductive terminals; an intermediate electrical shield extends between the first row of terminal groups and the second row of terminal groups to Electrical shielding is provided between the row of terminal groups and the second row of terminal groups; an insulating seat body, the insulating seat body is divided into a first insulating seat body area that is not interlaced with each other at the upper, middle and lower positions . An intermediate insulating seat body area and a second insulating seat body area, the first row of terminal groups is embedded in the first insulating seat body area, the second row of terminal groups is embedded in the second insulating seat body area, The intermediate electrical shielding body is embedded in the intermediate insulating seat body area; and an upper cover electrical shielding body, the upper cover electrical shielding body is pivotally arranged on the insulating seat body to form a frame structure, the frame structure There is an insertion space at the front end of the upper cover, and the electrical shielding body of the upper cover can provide electrical shielding for the insertion space; and an FPC wire, the FPC wire includes: an electrical connection end, the electrical connection end is on the upper The three parts of , middle and lower are divided into a first wire front end area, a middle wire front end area and a second wire front end area which are not interlaced with each other; a first electrical circuit layer, the first electrical circuit layer There are a plurality of first signal conductive lines and a plurality of first electrical shielding lines; each first electrical shielding line is respectively located between two of the plurality of first signal conductive lines, so that the plurality of first signal conductive lines Electrical shielding is provided between two of the conductive lines; the contacts of the plurality of first signal conductive lines and the plurality of first electrical shielding lines are respectively arranged in the front end area of the first wire; a second electrical circuit layer , the second electrical circuit layer has a plurality of second signal conductive circuits and a plurality of second electrical shielding circuits; each second electrical shielding circuit is respectively located between two of the plurality of second signal conductive circuits, To provide electrical shielding between two of the plurality of second signal conductive lines; the contacts of the plurality of second signal conductive lines and the plurality of second electrical shielding lines are respectively arranged in the front end area of the second wire rod ; an electrical shielding conductor layer, the electrical shielding conductor layer has an electrical shielding conductor circuit, the contact point of the electrical shielding conductor circuit is arranged in the front end area of the intermediate wire, and the electrical shielding conductor layer is located at The first electrical wiring layer and the second electrical between the electrical circuit layers to provide electrical shielding between the first electrical circuit layer and the second electrical circuit layer; a first lower insulating layer, the first lower insulating layer on the first electrical circuit layer Insulation is provided between the layer and the neutral electrical shielding conductor layer, and the contacts of the first signal conductive lines are exposed at the front end area of the first wire, so as to respectively provide electrical contact with one of the plurality of first signal conductive terminals. and the contacts of the first electrical shielding lines are exposed at the front end area of the first wire, so as to respectively provide an electrical connection with one of the plurality of first electrical shielding terminals; a second upper insulating layer , the second upper insulating layer provides insulation between the second electrical circuit layer and the intermediate electrical shielding conductor layer, and exposes the contact point of the intermediate electrical shielding conductor circuit at the front end area of the intermediate wire to provide contact with the electrical shielding conductor layer. an electrical connection to the intermediate electrical shield; and a second intermediate insulating layer that provides insulation on the side of the second electrical circuit layer that faces away from the intermediate electrical shielding conductor layer, and on the second electrical shielding conductor layer The contact points of the second signal conductive lines are exposed at the front end area of the two wires, so as to respectively provide electrical connection with one of the plurality of second signal conductive terminals, and each second electrical shielding is exposed at the front end area of the second wire rod. The contacts of the circuit are provided to respectively provide an electrical connection with one of the plurality of second electrical shielding terminals; wherein, the electrical shielding body of the upper cover can pivot relative to the insulating seat body, so as to lift up and expose the device into the space, so that the electrical connection end of the FPC wire can go in and out of the insertion space; and the upper cover electrical shield can pivot relative to the insulating seat, thereby pressing down to engage the middle electrical shield, so as to force The first electrical circuit layer, the second electrical circuit layer and the intermediate electrical shielding conductor layer are electrically connected to the first terminal group, the second terminal group and the intermediate electrical shielding body respectively; Wherein, the FPC wire also includes: an upper electrical shielding conductor layer, a first middle insulating layer, a lower electrical shielding conductor layer and a plurality of via holes, the upper electrical shielding conductor layer is located on the first electrical line layer above and has an upper electrically shielded conductor line, the first middle insulation layer provides insulation between the upper electrically shielded conductor layer and the first electrical line layer, and the lower electrically shielded conductor layer is located on the second The second middle insulation layer provides insulation between the lower electrical shielding conductor layer and the second electrical wiring layer, wherein the upper electrical shielding conductor line is below the electrical circuit layer and has a lower electrical shielding conductor circuit . The middle electrical shielding conductor line and each first electrical shielding line form an upper shielding loop, and the upper shielding loop is distributed on the periphery of each first signal conductive line to provide electrical shielding for each first signal conductive line; The lower electrical shielding conductor circuit, the intermediate electrical shielding conductor circuit and each second electrical shielding circuit form a lower shielding circuit, and the lower shielding circuit is distributed on the periphery of each second signal conductive circuit to protect each second signal The conductive lines provide electrical shielding; each via hole passes through the first middle, first lower, second upper, and second middle insulation layers respectively, so that the upper electrically shielded conductor line, the first electrically shielded line, and the The neutral electrically shielded conductor line, the second electrically shielded line , the lower electrical shielding conductor circuit is electrically connected, thereby forming the upper and lower shielding loops, wherein, the distance between adjacent two of the plurality of via holes on each first and second electrical shielding circuit is determined by Defined by the wavelength length of each frequency band of the electrical signal conducted by each of the first and second signal conductive lines.

The present invention also provides an FPC connector for electrically connecting an FPC wire. The FPC wire has a first electrical circuit layer, a second electrical circuit layer, and an electrical shielding conductor layer. The shielding conductor layer is located between the first electrical circuit layer and the second electrical circuit layer, and the FPC connector includes: a first row of terminal groups; a second row of terminal groups; an intermediate electrical shielding body, The intermediate electrical shield extends between the first row of terminal groups and the second row of terminal groups to provide electrical shielding between the first row of terminal groups and the second row of terminal groups; an insulating base body , the insulating base is divided into a first insulating base area, a middle insulating base area and a second insulating base area which are not interlaced with each other in the upper, middle and lower three parts, the first row of terminals A group of terminals is embedded in the first insulating seat area, the second row of terminal groups is embedded in the second insulating seat area, the intermediate electrical shielding body is embedded in the intermediate insulating seat area; and an electrical upper cover The electrical shielding body of the upper cover is pivotally arranged on the insulating seat to form a frame structure. The front end of the frame structure has an insertion space, wherein the electrical shielding body of the upper cover can The insertion space provides electrical shielding; the electrical shielding body of the upper cover can pivot relative to the insulating base, thereby lifting to expose the insertion space, so that the electrical connection end of the FPC wire can enter and exit the insertion space; and the The upper cover electrical shield can be pivoted relative to the insulating base, thereby pressing down to engage the middle electrical shield, so as to force the first electrical circuit layer, the second electrical circuit layer and the intermediate electrical shield The conductor layer is electrically connected to the first row of terminal groups, the second row of terminal groups and the intermediate electrical shielding body respectively.

Optionally, in the FPC connector of the present invention, the middle portion of the middle electrical shielding body has a middle raised structure, and the middle raised structure is located between the first row of terminal groups and the second row of terminal groups. The space is used to electrically connect the middle portion of the electrical shielding conductor layer.

Optionally, in the FPC connector of the present invention, the side portion of the intermediate electrical shielding body has an edge protruding structure, and the end edge protruding structure avoids the first row of terminal groups and the second row of terminals. The terminal group is used to electrically connect the end edge of the electrical shielding conductor layer.

Optionally, in the FPC connector of the present invention, the structure of the upper cover electrical shielding body for pivoting the insulating seat has an upper dead center stop surface, a lower dead center stop surface and a guide arc surface, the guide arc surface is used to guide the electrical shield of the upper cover to pivot relative to the insulating seat until it is stopped by the stop surface at the top dead center or the stop surface at the bottom dead center, so that the top dead center The intersecting angle between the stop surface and the bottom dead center stop surface is the pivot angle at which the upper cover electrical shield can pivot relative to the insulating base.

Compared with the prior art, the FPC connector of the present invention and its combined structure with the FPC circuit arrange the multiple terminals of the FPC connector into two rows before and after, so that when the width of the connector is limited and the number of terminals is fixed Next, expand the separation distance between adjacent two terminals to reduce the degree of electromagnetic coupling interference between adjacent two terminals when transmitting signals, and add an intermediate electrical shield between the two rows of terminals to cooperate with the upper cover The electrical shield provides a multi-dimensional shielding environment to reduce the degree of electromagnetic coupling interference between the two rows of terminals when transmitting signals.

In addition, the electrical shielding body on the upper cover also has an embossed structure to force the FPC wires to be electrically connected to the first row of terminal groups, the second row of terminal groups and the middle electrical shielding body, so as to complete the electrical connection between the FPC wires and the FPC connector. sexual connection. In addition, the terminals of the FPC connector of the present invention can be divided into signal conductive terminals and electrical shielding terminals, and the electrical shielding terminals provide electrical shielding between multiple signal conductive terminals to reduce transmission of multiple signal conductive terminals. The degree of electromagnetic coupling interference between signals, and even avoid crosstalk interference between adjacent signal conductive terminals when transmitting signals.

【Description of drawings】

FIG. 1 is a schematic diagram of the first embodiment of the FPC connector of the present invention.

FIG. 2 is an exploded view of some components of the FPC connector shown in FIG. 1 .

FIG. 3-1 is a top view of some components of the first embodiment of the FPC connector of the present invention.

3-2 is a top view of some components of the second embodiment of the FPC connector of the present invention.

FIG. 4 is a schematic diagram of some components of the FPC connector shown in FIG. 1 .

FIG. 5 is a schematic diagram of FPC wires entering the FPC connector shown in FIG. 1 .

Fig. 6 is a schematic diagram of the usage state of the FPC connector of the present invention.

FIG. 7 is a top view of the FPC connector shown in FIG. 6 in use.

FIG. 8 is a cross-sectional view cut along line AA of the FPC connector shown in FIG. 7 in use.

Figure 8-1 is an enlarged view of the area indicated by symbol B in the use state of the FPC connector shown in Figure 8.

FIG. 9 is an exploded view of the FPC connector shown in FIG. 6 in a first viewing angle in use.

FIG. 10 is an exploded view of the FPC connector shown in FIG. 6 in a second viewing angle in use.

Fig. 11-1 is a top view of some components of the first embodiment of the FPC wire of the present invention.

Figure 11-1-1 is a cross-sectional view of the FPC wire shown in Figure 11-1 cut along the line CC

Fig. 11-2 is a top view of some components of the second embodiment of the FPC wire of the present invention.

Figure 11-2-1 is a cross-sectional view of the FPC wire shown in Figure 11-2 cut along the DD line.

Figure 11-2-2 is a schematic diagram of the via hole of the FPC wire shown in Figure 11-2.

Figure 11-2-3 is a schematic diagram of the via hole of the FPC wire shown in Figure 11-1.

FIG. 12 is a schematic view of the first use state of the second embodiment of the FPC connector of the present invention.

FIG. 13 is a schematic diagram of a second use state of the second embodiment of the FPC connector of the present invention.

FIG. 14 is an exploded view of some components of the FPC connector shown in FIG. 12 .

FIG. 15 is a schematic diagram of some components of the FPC connector shown in FIG. 14 .

FIG. 16 is a schematic diagram of some components of the FPC connector shown in FIG. 14 .

FIG. 17 is a schematic diagram of a third usage state of the second embodiment of the FPC connector of the present invention.

【Detailed ways】

The following content will be combined with the accompanying drawings to illustrate the technical content of the present invention through specific embodiments. Those who are familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various modifications and changes may be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. In particular, the scales and relative positions of various components in the drawings are for exemplary purposes only, and do not represent the actual situation of the implementation of the present invention.

The present invention provides an FPC connector and its combined structure with FPC circuits. The FPC connector is arranged on a circuit substrate to electrically connect the FPC wires used together to form the FPC connector and its FPC circuit. More specifically, the FPC connector of the present invention is mainly designed with an electrical shielding mechanism to form a shielding loop in a multi-dimensional space, and reduce the electromagnetic coupling interference of multiple terminals when transmitting signals. To a certain extent, when the width of the connector is limited and the number of terminals is fixed, the multiple terminals are arranged in two rows before and after, so as to expand the separation distance between adjacent two terminals and reduce the transmission between adjacent two terminals. The degree of electromagnetic coupling interference between signals, for the technical idea of the present invention, please refer to the disclosure of Figures 1 to 17 in the accompanying drawings of the present invention, and the FPC is a flexible printed circuit board (Flexible Printed Circuit Board) ) for short.

As shown in FIG. 5 to FIG. 7 , the combined structure M of the FPC connector and the FPC circuit of the present invention includes the FPC connector 1 and the FPC wire 2 . Among them, as shown in Figure 1 and Figure 2, the FPC connector 1 provided by the present invention includes a first row of terminal groups 11, a second row of terminal groups 12, an intermediate electrical shield 13, an insulating seat body 14, an upper cover The electrical shield 15 and a pair of ground terminals 16 . The pair of ground terminals 16 is used for soldering the circuit board to provide grounding. Optionally, as shown in FIG. And it is integrally formed with the intermediate electrical shielding body 13 .

Regarding the composition of the first and second rows of terminal groups 11 and 12, as shown in Figure 3-1, the first row of terminal groups 11 includes a plurality of first signal conductive terminals 111, and the second row of terminal groups 12 includes a plurality of The second signal conductive terminal 121 , wherein each of the first and second signal conductive terminals 111 and 121 is used to transmit electrical signals respectively. However, it should not be limited thereto, optionally, as shown in FIG. Each first electrical shielding terminal 112 is respectively located between two of the plurality of first signal conductive terminals 111 , so as to be groundable and provide electrical shielding between two of the plurality of first signal conductive terminals 111 . Correspondingly, the second row of terminal groups 12 includes a plurality of second signal conductive terminals 121 and a plurality of second electrical shielding terminals 122, and each second electrical shielding terminal 122 is respectively located among the plurality of second signal conductive terminals 121. Between the two, electrical shielding is provided between two of the plurality of second signal conductive terminals 121 to be grounded.

In addition, it should be noted that the FPC connector 1 of the present invention arranges a plurality of terminals in front and back two rows, that is, it is divided into the first row of terminal groups 11 and the second row of terminal groups 12. When the number of terminals is limited and the number of terminals is fixed, the purpose of expanding the separation distance between adjacent two terminals is achieved, so as to reduce the degree of electromagnetic coupling interference between adjacent two terminals, and even avoid the interference between adjacent two terminals. Crosstalk interference (commonly known as crosstalk) occurs.

The insulating base body 14 is provided with a first insulating base body area 141, an intermediate insulating base body area 143 and a second insulating base body area 142 at the upper, middle and lower parts of the whole body. Ground, as shown in FIG. 3-1, the first and second insulating seat regions 141, 142 are spaced apart from the intermediate insulating seat region 143 and respectively have rectangular outer contours indicated by dotted lines in FIG. 3-1, The long side dimensions of the intermediate insulating base area 143 are respectively larger than the long side dimensions of the first and second insulating base areas 141 and 142, so that the intermediate insulating base area 143 can separate the first and second insulating bases. Body regions 141,142.

In one embodiment of the present invention, the first and second rows of terminal groups 11 and 12 are respectively embedded in the first and second insulating base regions 141 and 142, and the intermediate electrical shielding body 13 is embedded in the intermediate insulating base. The area 143 is so that the middle electrical shield 13 can extend between the first and second rows of terminal groups 11 and 12, so that the pair of grounding terminals 16 can be grounded, and the first and second row of terminal groups can be grounded. Electrical shielding is provided between the two terminals 11 and 12 to reduce the degree of electromagnetic coupling between the first and second rows of terminal groups 11 and 12 to interfere with signal transmission.

In the embodiment shown in FIG. 8 to FIG. 8-1 , the middle part of the middle electrical shielding body 13 has a middle raised structure 131, and the middle raised structure 131 is located between the first row of terminal groups 11 and the second row of terminals. The groups 12 are used to electrically connect the contacts 2311 in the middle of the electrical shielding conductor layer 23 of the FPC wire 2 . But it is not limited thereto. Optionally, in the embodiments shown in FIGS. The contact point 2311 at the end edge of the middle electrical shielding conductor layer 23 of the FPC wire 2, wherein the edge protrusion structure 132 avoids the first row of terminal groups 11 and the second row of terminal groups 12 to avoid interference with the first row of terminals. 1. The electrical connection between the second row of terminal groups 11 and 12 and the FPC wire 2 .

Optionally, in the embodiment shown in FIG. 3-1 and FIG. 3-2 , the left and right sides of the middle electrical shield 13 respectively extend beyond the left and right sides of the first and second rows of terminal groups 11 and 12 , that is, the projection of the middle electrical shield 13 toward the direction of the first row of terminal groups 11 can completely cover the first row of terminal groups 11, and the projection of the middle electrical shield 13 toward the direction of the second row of terminal groups 12 can completely cover the first row of terminal groups 12. Two rows of terminal groups 12, therefore, the middle electrical shielding body 13 can effectively separate the first and second row of terminal groups 11, 12 to provide electrical shielding between the first and second row of terminal groups 11, 12 , so as to avoid electromagnetic coupling interference between the first and second rows of terminal groups 11 and 12 when transmitting signals.

In the embodiment shown in Figures 1 to 5, the upper cover electrical shielding body 15 is pivotally arranged on the insulating base 14, and forms a frame structure F with the insulating base 14, and the front end of the frame structure F has an insertion space FS . The electrical shielding body 15 of the upper cover can pivot relative to the insulating seat 14, thereby raising the exposed insertion space FS, so that the electrical connection end 27 at the front end of the FPC wire 2 can enter and exit the insertion space FS, or the upper cover electrically shields After the body 15 pivots relative to the insulating seat body 14, it can be pressed down to join the insulating seat body 14, so as to force the FPC wire 2 to enter the electrical connection end 27 of the insertion space FS, and connect with the first and second rows of terminal groups 11, 12 respectively. It is electrically connected with the intermediate electrical shielding body 13 to complete the electrical connection between the FPC connector 1 and the FPC wire 2 .

In the embodiment shown in Fig. 12 to Fig. 14, the upper cover electrical shielding body 15 is used for pivoting the structure of the insulating seat body 14, which has an upper dead center stop surface 152 and a lower dead center stop surface 153, and the insulating seat body The exposed ground terminal 16 on 14 can contact the upper and lower dead center stop surfaces 152, 153 respectively at the upper and lower dead center positions, and stop the pivot of the upper cover electrical shielding body 15 at the upper and lower dead center positions. Rotate so as to limit the pivoting angle at which the upper cover electrical shielding body 15 can pivot relative to the insulating base 14 . Furthermore, the upper cover electrical shield 15 is used to pivotally install the insulating seat 14 with a guide arc surface 154, and the guide arc 154 is used to guide the upper cover electrical shield 15 to pivot relative to the insulating seat 14, Until it is stopped by the upper and lower dead point stop surfaces 152, 153, the intersection angle of the upper and lower dead point stop surfaces 152, 153 is the angle at which the upper cover electrical shielding body 15 can pivot relative to the insulating seat body 14. pivot angle.

In one embodiment of the present invention, the upper cover electrical shielding body 15 is made of metal material, and can provide electrical shielding for the electrical connection end 27 of the FPC wire 2 entering the insertion space FS after being grounded, so as to reduce electrical The degree to which the connector 27 is disturbed by electromagnetic coupling. The upper cover electrical shield 15 can be provided with at least one embossed structure 151, as shown in Figure 9 to Figure 10, the embossed structure 151 extends along the long side of the upper cover electrical shield 15, so as to improve the electrical performance of the upper cover. The structural strength of the shielding body 15, and as shown in Figure 5, the embossed structure 151 protrudes from the insertion space FS of the frame structure F, so as to press the electrical connection end 27 of the FPC wire 2 as a pressing structure, so that The electrical connection end 27 of the FPC wire 2 can be effectively electrically connected to the first and second rows of terminal groups 11 , 12 and the intermediate electrical shielding body 13 respectively.

In the embodiment shown in Figure 11-1 and Figure 11-1-1, the FPC wire 2 provided by the present invention includes a first electrical circuit layer 21, a second electrical circuit layer 22, an electrical shielding conductor layer 23 , a first lower insulating layer 24 , a second upper insulating layer 25 , a second middle insulating layer 26 and an electrical connection terminal 27 . Wherein, the electrical connection end 27 is provided with first and second wire front end areas 271 , 272 and an intermediate wire front end area 273 at the upper, middle, and lower positions that are not interlaced with each other (that is, separated from each other). The first electrical circuit layer 21 has a plurality of first signal conductive circuits 211 , and each first signal conductive circuit 211 is respectively provided with a contact point 2111 on the first wire front end area 271 . The second electrical circuit layer 22 has a plurality of second signal conductive circuits 221 , and each second signal conductive circuit 221 is respectively provided with a contact point 2211 on the front end area 272 of the second wire. The neutral electrical shielding conductor layer 23 is located between the first and second electrical circuit layers 21 , 22 for grounding and providing electrical shielding between the first and second electrical circuit layers 21 , 22 . The neutral electric shielding conductor layer 23 has a neutral electric shielding conductor line 231 , and the neutral electric shielding conductor line 231 is provided with a contact point 2311 at the front end region 273 of the intermediate wire.

The first lower insulating layer 24 provides insulation between the first electrical line layer 21 and the neutral electrical shielding conductor layer 23, and exposes the contact points 2111 of each first signal conductive line 211 to respectively provide contact with the first row of terminal groups 11. The electrical connection of one of the plurality of first signal conductive terminals 111 . The second upper insulating layer 25 provides insulation between the second electrical line layer 22 and the intermediate electrical shielding conductor layer 23, and exposes the contact 2311 of the intermediate electrical shielding conductor line 231 at the front end region 273 of the intermediate wire to provide a connection with the intermediate conductor. The electrical connection of the electrical shield 13 . The second middle insulating layer 26 provides insulation on the side of the second electrical line layer 22 away from the middle electrical shielding conductor layer 23, and exposes the contact points 2211 of the second signal conductive lines 221 at the front end area 272 of the second wire, so as to respectively An electrical connection is provided with one of the plurality of second signal conductive terminals 121 of the second row terminal set 12 .

Therefore, as shown in FIG. 11-1-1 , the upper electrically shielded conductor line 2811 and each first electrically shielded line 212 form an upper shielded circuit C11 . The upper shielding circuit C11 surrounds each first signal conductive line 211 to provide electrical shielding for each first signal conductive line 211 , so as to prevent each first signal conductive line 211 from being interfered by electromagnetic coupling when transmitting signals. The lower electrically shielded conductor lines 2831 and each second electrically shielded lines 222 form a lower shielded loop C12. The lower shielding circuit C12 surrounds each second signal conductive line 221 to provide electrical shielding for each second signal conductive line 221 , so as to prevent each second signal conductive line 221 from being interfered by electromagnetic coupling when transmitting signals.

But not limited to this, in the embodiment shown in Figure 11-2 to Figure 11-2-3, the first electrical circuit layer 21 also has a plurality of first electrical shielding lines 212, each first electrical The shielding lines 212 are respectively arranged with contact points 2121 in the front end area 271 of the first wire, and the first lower insulating layer 24 exposes the contact points 2121 of each first electrical shielding line 212, so as to respectively provide a plurality of first contacts with the first row of terminal groups 11. The electrical connection of one of the electrical shielding terminals 112 . In addition, each first electrical shielding line 212 is respectively located between at least two of the plurality of first signal conductive lines 211 , so as to be groundable and provide electrical shielding between the plurality of first signal conductive lines 211 .

The second electrical circuit layer 22 also has a plurality of second electrical shielding circuits 222, and each second electrical shielding circuit 222 is respectively arranged with a contact point 2221 in the second wire front end area 272, and the second middle insulating layer 26 is exposed to each second electrical shielding circuit. The contact points 2221 of the electrical shielding circuit 222 are respectively provided for electrical connection with one of the plurality of second electrical shielding terminals 122 of the second row of terminal sets 12 . In addition, each second electrical shielding line 222 is respectively located between at least two of the plurality of second signal conductive lines 221 , so as to be groundable and provide electrical shielding between the plurality of second signal conductive lines 221 .

Moreover, the FPC wire 2 provided by the present invention also includes an upper electrical shielding conductor layer 281 , a first middle insulating layer 282 and a lower electrical shielding conductor layer 283 . The upper electrical shielding conductor layer 281 is located above the first electrical circuit layer 21 and has an upper electrical shielding conductor circuit 2811 . The first middle insulation layer 282 provides insulation between the upper electrical shielding conductor layer 281 and the first electrical circuit layer 21 . The lower electrical shielding conductor layer 283 is located below the second electrical circuit layer 22 and has a lower electrical shielding conductor circuit 2831 . The second middle insulation layer 26 provides insulation between the lower electrical shielding conductor layer 283 and the second electrical circuit layer 22 .

Therefore, as shown in FIG. 11-2-1 , the upper electrical shielding conductor line 2811 , the middle electrical shielding conductor line 231 and each of the first electrical shielding lines 212 constitute an upper shielding circuit C21 . The upper shielding loop C21 is distributed on the periphery of each first signal conductive line 211 to provide electrical shielding for each first signal conductive line 211 to avoid electromagnetic coupling interference when each first signal conductive line 211 transmits a signal. The lower electrical shielding conductor line 2831 , the middle electrical shielding conductor line 231 and each of the second electrical shielding lines 222 form a lower shielding circuit C22 . The lower shielding loop C22 is distributed around the periphery of each second signal conductive line 221 to provide electrical shielding for each second signal conductive line 221 to avoid electromagnetic coupling interference when each second signal conductive line 221 transmits signals.

More specifically, as shown in Figure 11-2-2 to Figure 11-2-3, the FPC wire 2 provided by the present invention also includes a plurality of via holes 284, and each via hole 284 passes through the first middle The insulating layer 282, the first lower insulating layer 24, the second upper insulating layer 25 and the second middle insulating layer 26 make the upper electrically shielded conductor line 2811, the first electrically shielded conductor line 212, the middle electrically shielded conductor line 231, The second electrical shielding circuit 222 and the lower electrical shielding conductor circuit 2831 are electrically connected to form upper and lower shielding circuits C21 and C22.

Optionally, the distance L between adjacent two of the plurality of via holes 284 on each of the first and second electrically shielded lines 212, 222 is determined by the first and second signal conductive lines 211, 221. The wavelength length of each frequency band of the conducted electrical signal is defined, that is, the distance length L between the adjacent two via holes 284 on each of the first and second electrically shielded lines 212 and 222 is electrically conductive to each of the first and second signals. The wavelength lengths of the frequency bands of the electrical signals conducted by the lines 211, 221 are matched, so that electromagnetic coupling interference between the first and second signal conductive lines 211, 221 can be avoided, and even the first and second signal conductors can be avoided. The conductive lines 211 and 221 generate crosstalk interference (known as crosstalk).

To sum up, the present invention provides an FPC connector that can be used for high-frequency signal transmission and its combined structure with FPC lines. When the width is limited and the number of terminals is fixed, the separation distance between adjacent two terminals is enlarged to reduce the degree of electromagnetic coupling interference between adjacent two terminals when transmitting signals, and an additional set is added between two rows of terminals. The middle electrical shield cooperates with the upper cover electrical shield to provide a shielding environment, so as to effectively reduce the degree of electromagnetic coupling interference when the two rows of terminals transmit signals. In addition, the terminals of the FPC connector of the present invention can be divided into signal conductive terminals and electrical shielding terminals, and the electrical shielding terminals provide electrical shielding between multiple signal conductive terminals to effectively reduce the number of signal conductive terminals. The degree of electromagnetic coupling interference between them can provide the transmission of high-frequency signals.

The above-mentioned embodiments are only illustrative to illustrate the principles and functions of the present invention, and are not intended to limit the present invention. Anyone skilled in the art can make modifications and changes to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be as listed in the claims of the present invention.

【Symbol Description】

MFPC connector and its combined structure with FPC line 1FPC connector

11 The first row of terminal groups

111 first signal conductive terminal

112 The first electrical shielding terminal

12 Second row terminal group

121 Second signal conductive terminal

122 Second electrical shielding terminal

13 Intermediate electrical shielding body

131 middle raised structure

132 edge raised structure

14 insulating seat body

141 first insulating base area

142 Second insulating base area

143 Intermediate insulating base area

15 Upper cover electrical shield

151 relief structure

152 top dead center stop surface

153 Bottom dead center stop surface

154 guide arc

16 Ground terminal

2FPC wire

21 The first electrical circuit layer

211 The first signal conductive line

2111 contacts

212 The first electrical shielding line

2121 contacts

22 Second electrical circuit layer

221 Second signal conductive line

2211 contacts

222 Second electrical shielding line

2221 contacts

23 electrical shielding conductor layer

231 Electrically shielded conductor lines

2311 contacts

24 first lower insulating layer

25 second upper insulating layer

26 second middle insulating layer

27 electrical connection terminal

271 Front end area of the first wire rod

272 Second wire front end area

273 Intermediate wire front end area

281 upper electrical shielding conductor layer

2811 Electrically shielded conductor lines

282 The first middle insulating layer

283 lower electrical shielding conductor layer

2831 under the electrical shielding conductor circuit

284 via holes

3 circuit substrate

F frame structure

FS placement space

Shield loop above C11

Shielding circuit below C12

Shielding circuit above C21

Shielding circuit below C22

θ intersection angle

Claims (5)

1. An FPC connector and a combined framework of the FPC connector and an FPC circuit comprise:

an FPC connector, comprising:

a first row of terminal set having a plurality of first signal conductive terminals and a plurality of first electrically shielding terminals, each first signal conductive terminal being for transmitting electrical signals, each first electrically shielding terminal being located between two of the plurality of first signal conductive terminals to provide electrical shielding between two of the plurality of first signal conductive terminals;

a second row of terminal set having a plurality of second signal conductive terminals and a plurality of second electrically shielding terminals, each second signal conductive terminal being used for transmitting electrical signals, each second electrically shielding terminal being located between two of the plurality of second signal conductive terminals to provide electrical shielding between two of the plurality of second signal conductive terminals;

an intermediate electrical shield extending between the first row of terminal sets and the second row of terminal sets to provide electrical shielding between the first row of terminal sets and the second row of terminal sets;

the insulating base body is arranged at the upper part, the middle part and the lower part and is divided into a first insulating base body area, a middle insulating base body area and a second insulating base body area which are not staggered with each other, the first row of terminal groups are embedded in the first insulating base body area, the second row of terminal groups are embedded in the second insulating base body area, and the middle electric shielding body is embedded in the middle insulating base body area; and

the upper cover electric shielding body is pivoted on the insulating base body to form a frame structure, the front end of the frame structure is provided with an embedding space, and the upper cover electric shielding body can provide electric shielding for the embedding space;

and

an FPC wire, this FPC wire contains:

the electric connection end is arranged at the upper part, the middle part and the lower part and is divided into a first wire front end area, a middle wire front end area and a second wire front end area which are not staggered with each other;

a first electrical circuit layer having a plurality of first signal conductive circuits and a plurality of first electrical shielding circuits; each first electrically shielding circuit is respectively positioned between two of the first signal conducting circuits so as to provide electrical shielding between two of the first signal conducting circuits; the joints of the first signal conducting circuits and the first electric shielding circuits are respectively distributed in the front end area of the first wire;

a second electrical circuit layer having a plurality of second signal conductive circuits and a plurality of second electrical shielding circuits; each second electrically shielding circuit is respectively positioned between two of the plurality of second signal conductive circuits so as to provide electrical shielding between two of the plurality of second signal conductive circuits; the joints of the second signal conducting circuits and the second electric shielding circuits are respectively distributed in the front end area of the second wire;

a middle electrical shielding conductor layer, having a middle electrical shielding conductor circuit, the contact of the middle electrical shielding conductor circuit being disposed at the front end region of the middle wire, the middle electrical shielding conductor layer being located between the first electrical circuit layer and the second electrical circuit layer to provide electrical shielding between the first electrical circuit layer and the second electrical circuit layer;

a first lower insulating layer, which provides insulation between the first electrical circuit layer and the middle electrical shielding conductor layer, exposes the contacts of each first signal conductive circuit in the front end region of the first wire rod to provide electrical connection with one of the first signal conductive terminals, and exposes the contacts of each first electrical shielding circuit in the front end region of the first wire rod to provide electrical connection with one of the first electrical shielding terminals;

a second upper insulating layer providing insulation between the second electrical circuit layer and the middle electrical shielding conductor layer, and exposing the contact of the middle electrical shielding conductor circuit in the front end region of the middle wire rod to provide electrical connection of the middle electrical shielding body; and

a second middle insulation layer, which provides insulation on one side of the second electric line layer departing from the middle electric shielding conductor layer, exposes the contact of each second signal conductive circuit in the front end area of the second wire rod to provide electric connection with one of the plurality of second signal conductive terminals, and exposes the contact of each second electric shielding line in the front end area of the second wire rod to provide electric connection with one of the plurality of second electric shielding terminals; wherein,

the upper cover electric shielding body can pivot relative to the insulation seat body, so as to be lifted to expose the embedding space, and the electric connection end of the FPC wire can enter and exit the embedding space; and

the upper cover electrical shielding body can pivot relative to the insulating base body, so as to press downwards to be jointed with the middle electrical shielding body, and the first electrical circuit layer, the second electrical circuit layer and the middle electrical shielding conductor layer are forced to be electrically connected with the first row of terminal group, the second row of terminal group and the middle electrical shielding body respectively; wherein,

this FPC wire rod still contains: an upper electric shielding conductor layer, a first middle insulating layer, a lower electric shielding conductor layer and a plurality of via holes, wherein the upper electric shielding conductor layer is positioned above the first electric line layer and is provided with an upper electric shielding conductor circuit;

the lower electric shielding conductor circuit, the middle electric shielding conductor circuit and each second electric shielding circuit form a lower shielding loop, and the lower shielding loop is distributed at the periphery of each second signal conductive circuit to provide electric shielding for each second signal conductive circuit; each via hole respectively penetrates through the first middle insulating layer, the first lower insulating layer, the second upper insulating layer and the second middle insulating layer, so that the upper electric shielding conductor circuit, the first electric shielding circuit, the middle electric shielding conductor circuit, the second electric shielding circuit and the lower electric shielding conductor circuit are electrically communicated to form the upper shielding loop and the lower shielding loop, wherein the distance length between the adjacent two of the via holes on each first electric shielding circuit and each second electric shielding circuit is defined by the wavelength length of each frequency band of electric signals conducted by each first signal conducting circuit and each second signal conducting circuit.

2. The utility model provides a FPC connector for an electric connection FPC wire rod, this FPC wire rod has a first electric property circuit layer, a second electric property circuit layer and an well electrical shielding conductor layer, and this well electrical shielding conductor layer is located between this first electric property circuit layer and this second electric property circuit layer, and this FPC connector includes:

a first row of terminal groups;

a second row of terminal groups;

a middle electrical shield extending between the first row of terminal sets and the second row of terminal sets to provide electrical shielding between the first row of terminal sets and the second row of terminal sets;

the insulating base body is arranged at the upper part, the middle part and the lower part and is divided into a first insulating base body area, a middle insulating base body area and a second insulating base body area which are not staggered with each other, the first row of terminal groups are embedded in the first insulating base body area, the second row of terminal groups are embedded in the second insulating base body area, and the middle electric shielding body is embedded in the middle insulating base body area; and

an upper cover electric shield pivoted on the insulating base to form a frame structure, the front end of the frame structure having a placing space,

the upper cover electric shield body can provide electric shielding for the placing space;

the upper cover electric shielding body can pivot relative to the insulation seat body, so as to be lifted to expose the embedding space, and the electric connection end of the FPC wire can enter and exit the embedding space; and

the upper cover electrical shielding body can pivot relative to the insulating base body, so as to press downwards to be jointed with the middle electrical shielding body, and the first electrical circuit layer, the second electrical circuit layer and the middle electrical shielding conductor layer are forced to be electrically connected with the first row of terminal group, the second row of terminal group and the middle electrical shielding body respectively.

3. The FPC connector of claim 2, wherein the middle portion of the middle shield has a middle protrusion structure located between the first row of terminal sets and the second row of terminal sets for electrically connecting the middle portion of the middle shield conductor layer.

4. The FPC connector of claim 2, wherein the side portion of the middle shield has an end protrusion structure, and the end protrusion structure avoids the first row of terminal sets and the second row of terminal sets for electrically connecting the end portion of the middle shield conductor layer.

5. The FPC connector of claim 2, wherein the structure for pivoting the top cover electrical shield has a top dead center stop surface, a bottom dead center stop surface and a guiding arc surface, the guiding arc surface is used to guide the top cover electrical shield to pivot relative to the insulating base until being stopped by the top dead center stop surface or the bottom dead center stop surface, such that an intersection angle of the top dead center stop surface and the bottom dead center stop surface is a pivoting angle of the top cover electrical shield relative to the insulating base.