CN109962357A

CN109962357A - FPC connector and its combo architectures with FPC route

Info

Publication number: CN109962357A
Application number: CN201711409090.XA
Authority: CN
Inventors: 龚锦川
Original assignee: KELING CO Ltd; HARUMOTO TECHNOLOGY(SHENZHEN)CO Ltd
Current assignee: KELING CO Ltd; HARUMOTO TECHNOLOGY(SHENZHEN)CO Ltd
Priority date: 2017-12-22
Filing date: 2017-12-22
Publication date: 2019-07-02
Anticipated expiration: 2037-12-22
Also published as: TW201929335A; TWI665831B; CN109962357B

Abstract

A kind of FPC connector and its combo architectures with FPC route, the FPC connector is that affiliated multiple terminals are arranged in front two rows, in the case where connector width is restricted and number of terminals is fixed, between expansion adjacent both ends separated by a distance, with reduce adjacent both ends son between when transmit signal between occur electromagnetic coupling interfere degree, intermediate electrical shield is added among two rows of terminals also to cooperate with upper cover electrical property shield to provide the shielding environment in various dimensions space, the degree of electromagnetic coupling interference occurs between with to reduce two rows of terminals when transmitting signal.In addition, terminal belonging to FPC connector of the invention can be distinguished into signal conductive terminal and electrical shield terminal, electrically shielding is provided between multiple signal conductive terminals by electrical shield terminal, the degree of electromagnetic coupling interference occurs between to reduce multiple signal conductive terminals when transmitting signal, so as to provide the transmission of high-frequency signal.

Description

FPC connector and combined framework of FPC connector and FPC circuit

[ technical field ] A method for producing a semiconductor device

The present invention relates to an FPC connector and a combined structure thereof with an FPC line, and more particularly, to an FPC connector and a combined structure thereof with an FPC line, which can reduce the degree of electromagnetic coupling interference during signal transmission for high-frequency signal transmission.

[ background of the invention ]

Flexible Printed Circuit (FPC) has flexibility and three-dimensional space wiring, and can be connected to a Circuit board by using an FPC connector, and has been widely used in computers, peripheral devices thereof, communication products, and consumer electronic products for transmitting electrical signals in recent years. However, signal transmission of terminals of the FPC connector of conventional design is often subject to electromagnetic coupling interference, and thus cannot meet the high-speed signal transmission demand of FPC in recent years.

For example, based on the development trend of being light, thin, short and small, the number of IO interfaces is reduced in recent years for various electronic products, so that the IO interfaces need high-speed transmission signals, and if the FPC connector matched with the IO interfaces has a poor electrical shielding effect, the transmission effect of the high-speed signals will be negatively affected, so how to improve the above-mentioned deficiency and improve the electrical shielding effect of the FPC connector, so that the FPC connector can be used for high-speed signal transmission, which is a problem to be urgently solved by people in the technical field.

[ summary of the invention ]

In view of the above-mentioned drawbacks of the prior art, the present invention provides an FPC connector and a combined structure of the FPC connector and FPC lines, comprising: 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; 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, and 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 for 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 with the middle electrical shielding body; the second middle insulating layer provides insulation on one side of the second electric line layer, which is far away from the middle electric shielding conductor layer, exposes the contact of each second signal conducting circuit in the front end area of the second wire rod so as to respectively provide electric connection with one of the plurality of second signal conducting terminals, and exposes the contact of each second electric shielding line in the front end area of the second wire rod so as to respectively provide electric connection with one of the plurality of second electric shielding terminals; the upper cover electric shielding body can pivot relative to the insulation seat body, so as to be lifted to expose the placing space, and the electric connection end of the FPC wire can enter and exit the placing space; 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 groups, the second row of terminal groups 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, and the upper shielding loop and the lower shielding loop are formed, 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.

The present invention further provides a FPC connector for electrically connecting a FPC wire, the FPC wire having a first electrical circuit layer, a second electrical circuit layer and a middle electrical shielding conductor layer, the middle electrical shielding conductor layer being located between the first electrical circuit layer and the second electrical circuit layer, the FPC connector comprising: a first row of terminal sets; a second row of terminal sets; 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; the upper cover electric shielding body is pivoted on the insulating base body to form a frame structure, and the front end of the frame structure is provided with an embedding space, wherein the upper cover electric shielding body can provide electric shielding for the embedding 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 electric shield body can pivot relative to the insulating base body, so as to press downwards to be jointed with the middle electric shield body, and the first electric circuit layer, the second electric circuit layer and the middle electric shield conductor layer are forced to be electrically connected with the first row of terminal groups, the second row of terminal groups and the middle electric shield body respectively.

Optionally, in the FPC connector of the present invention, the middle portion of the middle electrically shielding body has a middle protrusion structure, and the middle protrusion structure is located between the first row of terminal sets and the second row of terminal sets for electrically connecting the middle portion of the middle electrically shielding conductive layer.

Optionally, in the FPC connector of the present invention, the side portion of the middle electrically shielding body has an end edge protrusion structure, and the end edge protrusion structure avoids the first row of terminal sets and the second row of terminal sets for electrically connecting the end edge portion of the middle electrically shielding conductive layer.

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

Compared with the prior art, the FPC connector and the combined framework of the FPC connector and the FPC circuit are characterized in that a plurality of terminals belonging to the FPC connector are arranged into a front row and a rear row, so that under the condition that the width of the connector is limited and the number of the terminals is fixed, the separation distance between two adjacent terminals is increased, the degree of electromagnetic coupling interference between the two adjacent terminals during signal transmission is reduced, and an intermediate electric shielding body is additionally arranged between the two rows of terminals to provide a multi-dimensional shielding environment in cooperation with an upper cover electric shielding body, so that the degree of electromagnetic coupling interference between the two rows of terminals during signal transmission is reduced.

In addition, the upper cover electric shielding body is also provided with a relief structure so as to force the FPC wire to be electrically connected with the first row of terminal groups, the second row of terminal groups and the middle electric shielding body, thereby completing the electric connection of the FPC wire and the FPC connector. In addition, the terminal of the FPC connector can be divided into the signal conductive terminal and the electrical shielding terminal, and the electrical shielding terminal provides electrical shielding among the plurality of signal conductive terminals so as to reduce the degree of electromagnetic coupling interference among the plurality of signal conductive terminals during signal transmission and even avoid crosstalk interference among adjacent signal conductive terminals during signal transmission.

[ description of the drawings ]

Fig. 1 is a schematic view of a first embodiment of the FPC connector of the present invention.

Fig. 2 is an exploded view of a portion of the components of the FPC connector shown in fig. 1.

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

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

Fig. 4 is a schematic view of a part of the components of the FPC connector shown in fig. 1.

Fig. 5 is a schematic view of FPC wires entering the FPC connector shown in fig. 1.

Fig. 6 is a schematic view showing a use state of the FPC connector of the present invention.

Fig. 7 is a plan view of the FPC connector shown in fig. 6 in a use state.

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

Fig. 8-1 is an enlarged view of the region designated by symbol B in the state of use of the FPC connector shown in fig. 8.

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

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 a part of the members of the first embodiment of the FPC wiring of the present invention.

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

Fig. 11-2 is a top view of a part of the members of the second embodiment of the FPC wiring of the present invention.

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

FIG. 11-2-2 is a schematic view of a via hole of the FPC wire shown in FIG. 11-2.

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

Fig. 12 is a schematic view of a first usage state of the FPC connector of the present invention.

Fig. 13 is a second usage state diagram of the FPC connector of the present invention.

Fig. 14 is an exploded view of a portion of the components of the FPC connector shown in fig. 12.

Fig. 15 is a schematic view of a portion of the components of the FPC connector shown in fig. 14.

Fig. 16 is a schematic view of a portion of the components of the FPC connector shown in fig. 14.

Fig. 17 is a third usage state diagram of the FPC connector of the present invention.

[ detailed description ] embodiments

The present invention will be described in detail with reference to the following embodiments, which are illustrated in the accompanying drawings, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways. Various modifications and changes may be made in the details within the description and the drawings without departing from the spirit of the invention. In particular, the relative positions and proportions of the various elements in the drawings are merely exemplary in nature and are not intended to represent the actual conditions under which the present invention may be practiced.

The invention provides an FPC connector and a combined framework of the FPC connector and an FPC circuit, wherein the FPC connector is arranged on a circuit substrate to electrically connect matched FPC wires to form the FPC connector and the combined framework of the FPC connector and the FPC circuit, more specifically, the FPC connector is mainly designed with an electric shielding mechanism to form a shielding loop in a multi-dimensional space so as to reduce the degree of electromagnetic coupling interference on a plurality of terminals when the terminals are transmitted, and the terminals are arranged into front and back two rows under the condition that the width of the connector is limited and the number of the terminals is fixed, so that the separation distance between two adjacent terminals is enlarged to reduce the degree of electromagnetic coupling interference between the two adjacent terminals when the signals are transmitted, for the technical idea of the invention, please refer to the disclosure of figures 1 to 17 in the attached drawings, the FPC is an abbreviation of a Flexible Printed Circuit (FPC).

As shown in fig. 5 to 7, the FPC connector and the assembly structure M thereof with the FPC line of the present invention include an FPC connector 1 and an FPC wire 2. As shown in fig. 1 and fig. 2, the FPC connector 1 provided in the present invention includes a first row terminal set 11, a second row terminal set 12, an intermediate electrical shield 13, an insulating base 14, an upper cover electrical shield 15, and a pair of ground terminals 16. The pair of ground terminals 16 is used for soldering a circuit substrate to provide ground, and optionally, as shown in fig. 4, the pair of ground terminals 16 are respectively disposed on the left and right sides of the first row terminal set 11 and the second row terminal set 12, and are integrally formed with the middle electrical shield 13.

Regarding the structure of the first and second row terminal sets 11, 12, as shown in fig. 3-1, the first row terminal set 11 includes a plurality of first signal conductive terminals 111, and the second row terminal set 12 includes a plurality of second signal conductive terminals 121, wherein each of the first and second signal conductive terminals 111, 121 is used for transmitting an electrical signal. However, it should not be limited thereto, alternatively, as shown in fig. 3-2, the first row terminal set 11 includes a plurality of first signal conductive terminals 111 and a plurality of first electrically shielding terminals 112, wherein each of the first electrically shielding terminals 112 is respectively located between two of the plurality of first signal conductive terminals 111, so as to be grounded and provide electrical shielding between two of the plurality of first signal conductive terminals 111. Correspondingly, the second row terminal set 12 includes a plurality of second signal conductive terminals 121 and a plurality of second electrically shielding terminals 122, and each of the second electrically shielding terminals 122 is respectively located between two of the plurality of second signal conductive terminals 121, so as to be grounded and provide electrical shielding between two of the plurality of second signal conductive terminals 121.

It should be noted that, in the FPC connector 1 of the present invention, the terminals are arranged in two front rows and two rear rows, that is, the terminals are divided into the first row terminal group 11 and the second row terminal group 12, so that under the condition that the width of the connector is limited and the number of the terminals is fixed, the purpose of expanding the distance between two adjacent terminals is achieved, the degree of electromagnetic coupling interference between two adjacent terminals is reduced, and even crosstalk interference (so-called crosstalk) between two adjacent terminals can be avoided.

The insulating base 14 has a first insulating base region 141, an intermediate insulating base region 143, and a second insulating base region 142, which are not staggered with each other, disposed at three positions of the upper, middle, and lower portions of the whole, and thus, optionally, as shown in fig. 3-1, the first and second insulating base regions 141, 142 are spaced apart from the intermediate insulating base region 143 and respectively have a rectangular peripheral profile indicated by a dotted line in fig. 3-1, and the long side dimension of the intermediate insulating base region 143 is greater than the long side dimension of the first and second insulating base regions 141, 142, so that the intermediate insulating base region 143 can separate the first and second insulating base regions 141, 142.

In an embodiment of the present invention, the first and second rows of terminal sets 11, 12 are respectively embedded in the first and second insulating base regions 141, 142, and the intermediate electrical shield 13 is embedded in the intermediate insulating base region 143, such that the intermediate electrical shield 13 can extend between the first and second rows of terminal sets 11, 12 to be grounded through the pair of grounding terminals 16, and provide electrical shielding between the first and second rows of terminal sets 11, 12, so as to reduce the degree of interference of signal transmission caused by electromagnetic coupling between the first and second rows of terminal sets 11, 12.

In the embodiment shown in fig. 8 to 8-1, the middle portion of the middle electrical shielding body 13 has a middle protrusion structure 131, and the middle protrusion structure 131 is located between the first row terminal set 11 and the second row terminal set 12 for electrically connecting the contact 2311 of the middle portion of the middle electrical shielding conductive layer 23 of the FPC wire 2. However, not limited to this, alternatively, as shown in the embodiment shown in fig. 15 to 17, the edge protrusion structures 132 are respectively disposed at the left and right edges of the middle electrical shielding body 13 for electrically connecting the contacts 2311 at the edge of the middle electrical shielding conductive layer 23 of the FPC wire 2, wherein the edge protrusion structures 132 avoid the first row terminal set 11 and the second row terminal set 12 to avoid interfering with the electrical connection between the first row terminal set 11 and the second row terminal set 12 and the FPC wire 2.

Optionally, as shown in fig. 3-1 and 3-2, the left and right sides of the middle electrical shielding body 13 respectively extend beyond the left and right sides of the first and second rows of terminal sets 11 and 12, that is, the projection of the middle electrical shielding body 13 toward the first row of terminal set 11 can completely cover the first row of terminal set 11, and the projection of the middle electrical shielding body 13 toward the second row of terminal set 12 can completely cover the second row of terminal set 12, so that the middle electrical shielding body 13 can effectively separate the first and second rows of terminal sets 11 and 12 to provide electrical shielding between the first and second rows of terminal sets 11 and 12, and prevent the first and second rows of terminal sets 11 and 12 from electromagnetic coupling interference when transmitting signals.

In the embodiment shown in fig. 1 to 5, the upper cover electrical shielding body 15 is pivoted 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 inserting space FS. The upper cover electrical shielding body 15 can pivot relative to the insulation base 14 to lift up to expose the 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 electrical shielding body 15 can press down to engage with the insulation base 14 after pivoting relative to the insulation base 14, so as to force the FPC wire 2 to enter the electrical connection end 27 of the insertion space FS, and electrically connect with the first and second rows of terminal sets 11 and 12 and the middle electrical shielding body 13, respectively, thereby completing the electrical connection between the FPC connector 1 and the FPC wire 2.

In the embodiment shown in fig. 12 to 14, the structure of the top cover electrical shielding body 15 for pivoting the insulating base 14 has a top dead center stop surface 152 and a bottom dead center stop surface 153, the exposed ground terminal 16 on the insulating base 14 can contact the top dead center stop surface 152 and the bottom dead center stop surface 153 at the top dead center and the bottom dead center respectively, and the top cover electrical shielding body 15 is stopped at the top dead center and the bottom dead center to limit the pivoting angle of the top cover electrical shielding body 15 relative to the insulating base 14. Furthermore, the structure of the upper lid electrical shielding body 15 for pivotally installing the insulating base 14 has a guiding arc surface 154, and the guiding arc surface 154 is used for guiding the upper lid electrical shielding body 15 to pivot relative to the insulating base 14 until being stopped by the upper dead point stopping surfaces 152 and the lower dead point stopping surfaces 153, so that the intersection angle of the upper dead point stopping surfaces 152 and the lower dead point stopping surfaces 153 is the pivot angle at which the upper lid electrical shielding body 15 can pivot relative to the insulating base 14.

In an embodiment of the present invention, the cover electrical shield 15 is made of a metal material, and can provide electrical shielding for the electrical connection end 27 of the FPC cable 2 entering the insertion space FS after grounding, so as to reduce the degree of electromagnetic coupling interference on the electrical connection end 27. The top cover electrical shield 15 may be provided with at least one relief structure 151, as shown in fig. 9 to 10, the relief structure 151 extends along the long side of the top cover electrical shield 15 to improve the structural strength of the top cover electrical shield 15, and as shown in fig. 5, the relief structure 151 protrudes from the insertion space FS of the frame structure F to serve as a pressing structure to press the electrical connection terminals 27 of the FPC wire 2, so that the electrical connection terminals 27 of the FPC wire 2 can be electrically connected to the first and second row terminal sets 11, 12 and the middle electrical shield 13, respectively.

In the embodiment shown in fig. 11-1 and 11-1-1, the FPC line 2 provided by the present invention includes a first electrical circuit layer 21, a second electrical circuit layer 22, a middle electrically shielding conductive layer 23, a first lower insulating layer 24, a second upper insulating layer 25, a second middle insulating layer 26 and an electrical connection end 27. The electrical connection end 27 is provided with first and second wire front end regions 271 and 272 and a middle wire front end region 273, which are not staggered (i.e., spaced) at three positions, i.e., at the upper, middle and lower positions. The first electrical trace layer 21 has a plurality of first signal conductive traces 211, and each of the first signal conductive traces 211 has a contact 2111 disposed at the first wire front end region 271. The second electrical trace layer 22 has a plurality of second signal traces 221, and each of the second signal traces 221 is disposed with a contact 2211 in the second wire front end region 272. The middle electrically shielding conductive layer 23 is located between the first and second electrically conductive circuit layers 21 and 22, and can be grounded to provide electrical shielding between the first and second electrically conductive circuit layers 21 and 22. The middle electrically shielding conductive layer 23 has a middle electrically shielding conductive line 231, and the middle electrically shielding conductive line 231 is disposed with a contact 2311 at the middle wire front end region 273.

The first lower insulating layer 24 provides insulation between the first electrical circuit layer 21 and the middle electrical shielding conductive layer 23, and exposes the contact 2111 of each first signal conductive trace 211 to provide electrical connection with one of the first signal conductive terminals 111 of the first row terminal set 11. The second upper insulating layer 25 provides insulation between the second electrical wiring layer 22 and the middle electrical shielding conductor layer 23, and exposes the contact 2311 of the middle electrical shielding conductor line 231 at the middle wire front end region 273 to provide electrical connection with the middle electrical shielding body 13. The second middle insulating layer 26 provides insulation on a side of the second electrical wiring layer 22 away from the middle electrical shielding conductive layer 23, and exposes the contact 2211 of each second signal conductive trace 221 in the second wiring front end region 272 to respectively provide electrical connection with one of the second signal conductive terminals 121 of the second row terminal set 12.

Thus, as shown in fig. 11-1-1, the upper electrically shielded conductor line 2811 and each of the first electrically shielded lines 212 form an upper shielded loop C11. The upper shielding loop C11 surrounds each first signal conductive trace 211 to provide electrical shielding for each first signal conductive trace 211 to prevent electromagnetic coupling interference when each first signal conductive trace 211 transmits signals. The lower electrically shielding conductor line 2831 and each of the second electrically shielding lines 222 form a lower shielding loop C12. The lower shielding loop C12 surrounds each second signal conductive trace 221 to provide electrical shielding for each second signal conductive trace 221 so as to prevent electromagnetic coupling interference when each second signal conductive trace 221 transmits signals.

However, in the embodiment shown in fig. 11-2 to 11-2-3, the first electrical circuit layer 21 further has a plurality of first electrical shielding circuits 212, each of the first electrical shielding circuits 212 has a contact 2121 disposed at the first wire front region 271, and the first lower insulating layer 24 exposes the contact 2121 of each of the first electrical shielding circuits 212 to provide electrical connection with one of the first electrical shielding terminals 112 of the first row terminal set 11. In addition, each of the first electrically shielding lines 212 is respectively disposed between at least two of the first signal conductive traces 211, so as to be grounded and provide electrical shielding between the first signal conductive traces 211.

The second electrical circuit layer 22 further has a plurality of second electrical shielding circuits 222, each of the second electrical shielding circuits 222 is disposed with a contact 2221 at the second wire front end region 272, and the second middle insulating layer 26 exposes the contact 2221 of each of the second electrical shielding circuits 222, so as to provide electrical connection with one of the second electrical shielding terminals 122 of the second row terminal set 12. In addition, each second electrically shielding circuit 222 is respectively disposed between at least two of the plurality of second signal conductive traces 221, so as to be able to be grounded and provide electrical shielding between the plurality of second signal conductive traces 221.

Furthermore, the FPC cable 2 provided by the present invention further includes an upper electrical shielding conductive layer 281, a first middle insulating layer 282, and a lower electrical shielding conductive layer 283. The upper electrically shielding conductive layer 281 is disposed above the first electrically conductive line layer 21 and has an upper electrically shielding conductive line 2811. The first middle insulating layer 282 provides insulation between the upper electrically shielding conductive layer 281 and the first electrical wiring layer 21. The lower electrically shielding conductive layer 283 is located below the second electrical circuit layer 22 and has a lower electrically shielding conductive circuit 2831. The second middle insulating layer 26 provides insulation between the lower electrically shielding conductive layer 283 and the second electrical wiring layer 22.

Thus, as shown in fig. 11-2-1, the upper electrically shielding conductor line 2811, the middle electrically shielding conductor line 231 and each of the first electrically shielding lines 212 form an upper shielding loop C21. The upper shielding loop C21 is distributed around each first signal conductive trace 211 to provide electrical shielding for each first signal conductive trace 211, so as to prevent each first signal conductive trace 211 from being interfered by electromagnetic coupling when transmitting signals. The lower electrically shielding conductor line 2831, the middle electrically shielding conductor line 231 and each of the second electrically shielding lines 222 form a lower shielding loop C22. The lower shielding circuit C22 is distributed around each second signal conductive trace 221 to provide electrical shielding for each second signal conductive trace 221, so as to prevent each second signal conductive trace 221 from being interfered by electromagnetic coupling when transmitting signals.

More specifically, as shown in fig. 11-2-2 to fig. 11-2-3, the FPC cable 2 further includes a plurality of via holes 284, each via hole 284 respectively penetrates through the first middle insulating layer 282, the first lower insulating layer 24, the second upper insulating layer 25 and the second middle insulating layer 26, so that the upper electrically shielding conductor line 2811, the first electrically shielding line 212, the middle electrically shielding conductor line 231, the second electrically shielding line 222 and the lower electrically shielding conductor line 2831 are electrically connected to form the upper and lower shielding loops C21 and C22.

Optionally, the pitch length L between two adjacent via holes 284 on each of the first and second electrically shielding lines 212, 222 is defined by the wavelength length of each band of the electrical signal conducted by each of the first and second signal conductive traces 211, 221, that is, the pitch length L between two adjacent via holes 284 on each of the first and second electrically shielding lines 212, 222 is matched with the wavelength length of each band of the electrical signal conducted by each of the first and second signal conductive traces 211, 221, so as to avoid the electromagnetic coupling interference between the first and second signal conductive traces 211, 221, and even avoid the crosstalk interference (also known as crosstalk) between the first and second signal conductive traces 211, 221.

In summary, the present invention provides an FPC connector for high frequency signal transmission and a combination structure of the FPC connector and an FPC line, where the FPC connector arranges a plurality of terminals in front and rear two rows, so as to expand a separation distance between two adjacent terminals under the condition that the connector width is limited and the number of the terminals is fixed, so as to reduce the degree of electromagnetic coupling interference between the two adjacent terminals during signal transmission, and further, an intermediate electrical shield is additionally disposed between the two rows of terminals to provide a shielding environment in cooperation with the upper cover electrical shield, so as to effectively reduce the degree of electromagnetic coupling interference when the two rows of terminals transmit signals. In addition, the terminal of the FPC connector can be divided into the signal conductive terminals and the electrical shielding terminal, and the electrical shielding terminal provides electrical shielding among the plurality of signal conductive terminals, so that the degree of electromagnetic coupling interference among the plurality of signal conductive terminals is effectively reduced, and the transmission of high-frequency signals can be provided.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.

[ notation ] to show

MFPC connector and combination framework of MFPC connector and FPC (flexible printed circuit) circuit

1 FPC connector

11 first row terminal group

111 first signal conductive terminal

112 first electric shielding terminal

12 second row terminal group

121 second signal conducting terminal

122 second electrically shielded terminal

13 intermediate electric shield

131 middle convex structure

132 end edge protrusion structure

14 insulating base

141 first insulating base region

142 second insulating base region

143 intermediate insulating base region

15 Upper cover electric shield

151 relief structure

152 top dead center stop surface

153 bottom dead center stop surface

154 guide arc surface

16 ground terminal

2 FPC wire rod

21 first electric circuit layer

211 first signal conducting circuit

2111 contact point

212 first electrically shielded circuit

2121 contact point

22 second electrical wiring layer

221 second signal conductive trace

2211 contact

222 second electrically shielded circuit

2221 contact point

23 electrically shielding the conductor layer

231 electrically shielded conductor line

2311 contact point

24 first lower insulating layer

25 second upper insulating layer

26 second middle insulating layer

27 electrical connection terminal

271 first wire material tip region

272 second wire material front end region

273 middle wire front end region

281 electric shielding conductor layer

2811 electrically shielded conductor line

282 first middle insulating layer

283 lower electric shielding conductor layer

2831 electrically shielded conductor circuit

284 via hole

3 Circuit board

F frame structure

FS put space

C11 upper shield loop

C12 lower shielding loop

C21 upper shield loop

C22 lower shielding loop

Angle of intersection theta

Claims

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;

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 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.