TWI669869B - Ethernet transmission line - Google Patents

Abstract

An Ethernet transmission line consisting of two RJ45 connectors and a thin connector. Each RJ45 connector has a connection terminal group, and the connection terminal group includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal, which are sequentially arranged, wherein The first terminal and the second terminal are the first pair of differential terminals, the third terminal and the sixth terminal are the second pair of differential terminals, the fourth terminal and the fifth terminal are the third pair of differential terminals, and the seventh terminal and the eighth terminal are Four pairs of differential terminals. The thin connecting wire is connected between the two RJ45 joints, the thin connecting wire comprises a first flexible circuit board layer, a second flexible circuit board layer and a spacing layer, and the spacing layer is sandwiched between the first flexible circuit board layer and the second flexible circuit board layer The first flexible circuit board layer is provided with two first transmission lines, the two first transmission lines are electrically connected to the third terminal and the sixth terminal corresponding to each connection terminal group, and the second flexible circuit board layer is provided with two second transmission lines. The second transmission lines are electrically connected to the fourth terminal and the fifth terminal corresponding to the respective connection terminal groups.

Description

Ethernet transmission line

The present invention relates to a transmission line, and more particularly to an Ethernet transmission line.

With the maturity and popularity of communication technologies, network connectivity has become an integral part of most institutions, families and individuals. In general, most people install a network sharer indoors, so that multiple communication devices (such as laptops, smart phones, or tablets) in a specific range can connect to the network sharer through wired or wireless means. To connect to the Internet via a network sharer.

Ethernet is a main method for wired transmission of computer networks. However, the wire diameter or thickness of the currently known Ethernet route is too large (mostly more than 1.5mm), specifically, twisted pair B. In the case of the Ethernet route, it is entangled with each other through a plurality of twisted pairs. Each of the twisted wires has an insulating layer on the outside of the conductive line except for the conductive lines (such as copper wires), and the plurality of twisted pairs are wound and protected. The skin coating causes the wire diameter or thickness of the Ethernet route to be further reduced. Therefore, if the Ethernet route has the need to connect the outdoor unit, additional construction is required (such as breaking the door or window or drilling a hole in the wall). In order to perform wiring work, the cost is increased and the interior decoration is damaged to affect the appearance.

In view of the above, in one embodiment, an Ethernet transmission line is provided, including two RJ45 connectors and a thin connector. Each RJ45 connector has a connection terminal group, and the connection terminal group includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal, which are sequentially arranged, wherein The first terminal and the second terminal are the first pair of differential terminals, the third terminal and the sixth terminal are the second pair of differential terminals, the fourth terminal and the fifth terminal are the third pair of differential terminals, and the seventh terminal and the eighth terminal are Four pairs of differential terminals. The thin connecting wire is connected between the two RJ45 joints, the thin connecting wire comprises a first flexible circuit board layer, a second flexible circuit board layer and a spacing layer, and the spacing layer is sandwiched between the first flexible circuit board layer and the second flexible circuit board layer The first flexible circuit board layer is provided with two first transmission lines, the two first transmission lines are electrically connected to the third terminal and the sixth terminal corresponding to each connection terminal group, and the second flexible circuit board layer is provided with two second transmission lines. The second transmission lines are electrically connected to the fourth terminal and the fifth terminal corresponding to the respective connection terminal groups.

In summary, the Ethernet transmission line according to the embodiment of the present invention is realized by a flexible circuit board through a thin connecting line between the two RJ45 connectors, which can greatly reduce the thickness of the thin connecting line and has good flexibility. When the Ethernet transmission line is used for indoor connection, it can easily pass through the gap or be installed in a narrow place. If the Ethernet transmission line is used to connect the outdoor unit, it can directly pass through the door or window without affecting the opening and closing, so that no additional construction is required (such as breaking the door or window or drilling a hole in the wall) to reduce costs and maintain indoors. Beautifully decorated.

In addition, the thin connecting wires are respectively disposed on the first flexible circuit board layer and the second flexible circuit board layer through the two first transmission lines and the second second transmission lines, so that the two first transmission lines and the second second transmission lines can be substantially blocked by the spacer layer. Crosstalk is reduced between each other, and each transmission line is easier to control the equal length and reduce the transmission delay compared to the conventional twisted pair.

As shown in FIG. 1, the Ethernet transmission line 100 includes two RJ45 connectors and a thin connector 30, wherein the thin connector 30 is connected between two RJ45 connectors (hereinafter referred to as a first RJ45 connector 1 and a second RJ45 connector 2). As shown in FIG. 2, the first RJ45 connector 1 and the second RJ45 connector 2 respectively have a connection terminal group 10, 20. The connection terminal group 10 of the first RJ45 connector 1 includes a first terminal 11 and a second terminal 12 which are sequentially arranged. The third terminal 13, the fourth terminal 14, the fifth terminal 15, the sixth terminal 16, the seventh terminal 17, and the eighth terminal 18. The connection terminal group 20 of the second RJ45 connector 2 includes the first terminal 21, the second terminal 22, the third terminal 23, the fourth terminal 24, the fifth terminal 25, the sixth terminal 26, and the seventh terminal 27 which are sequentially arranged. The eighth terminal 28. In some embodiments, the first terminal 11 to the eighth terminal 18 of the connection terminal group 10 of the first RJ45 connector 1 and the first terminal 21 to the eighth terminal 28 of the connection terminal group 20 of the second RJ45 connector 2 are arranged in the direction of arrangement. Similarly, the first terminal 11 to the eighth terminal 18 correspond to the first terminal 18 to the eighth terminal 28, respectively.

As shown in FIG. 2 and FIG. 3, the first terminals 11, 21 and the second terminals 12, 22 of the respective connection terminal groups 10, 20 are the first pair of differential terminals (Data Pair A + terminal and Data Pair A - terminal), and third. The terminals 13, 23 and the sixth terminals 16, 26 are the second pair of differential terminals (Data Pair B+ terminal and Data Pair B-terminal), and the fourth terminals 14, 24 and the fifth terminals 15, 25 are the third pair of differential terminals (Data Pair C+ The terminal and the Data Pair C-terminal, the seventh terminal 17, 27 and the eighth terminal 18, 28 are the fourth pair of differential terminals (Data Pair D+ terminal and Data Pair D-terminal). That is, in the case of the connection terminal group 10, the first pair of differential terminals (the first terminal 11 and the second terminal 12) and the fourth pair of differential terminals (the seventh terminal 17 and the eighth terminal 18) are respectively located in the connection terminal group The opposite ends of 10, the third pair of differential terminals (fourth terminal 14 and fifth terminal 15) are interposed between the second pair of differential terminals (third terminal 13 and sixth terminal 16).

Referring to FIG. 2 and FIG. 3, the thin connecting wire 30 is a multi-layer film structure. In the embodiment, the thin connecting wire 30 includes a first flexible printed circuit layer 31 (FPC layer) and a second softness. A flexible printed circuit layer 32 (FPC layer) and a spacer layer 33 are disposed between the first flexible circuit board layer 31 and the second flexible circuit board layer 32. In some embodiments, the first flexible circuit board layer 31, the second flexible circuit board layer 32, and the spacer layer 33 are all flexible film layers, such as the first flexible circuit board layer 31 and the second flexible circuit board. The layer 32 and the spacer layer 33 may be formed of a film made of polyimide, polyethylene terephthalate, polycarbonate, or other plastic materials.

As shown in FIG. 2 and FIG. 3, in the embodiment, the surface of the first flexible circuit board layer 31 is provided with two first transmission lines 311, and the two first transmission lines 311 are disposed on the first flexible circuit board layer 31. The inner surface of the spacer layer 33 is adjacent to the outer layer to avoid the exposure, but may be disposed on the outer surface of the first flexible circuit board layer 31. In addition, the two first transmission lines 311 are parallel to each other and electrically connected to the third terminals 13, 23 and the sixth terminals 16, 26 corresponding to the respective connection terminal groups 10, 20 of the first RJ45 connector 1 and the second RJ45 connector 2, respectively. That is, one end of the two first transmission lines 311 is electrically connected to the third terminal 13 and the sixth terminal 16 of the connection terminal group 10, and the other end of the two first transmission lines 311 is electrically connected to the third terminal 23 of the connection terminal group 20 and The sixth terminal 26.

For example, as shown in FIG. 2 and FIG. 3, a plurality of electrical contacts may be respectively disposed at two ends of the first flexible circuit board layer 31 to be electrically connected to the first RJ45 connector 1 and the second RJ45 connector 2, respectively. Connection terminal groups 10, 20. For example, the first flexible circuit board layer 31 has eight electrical contacts 36A-36H at one end thereof for electrically connecting to the first terminal 11 to the eighth terminal 18 of the first RJ45 connector 1, respectively, and the first flexible circuit board layer 31. The other end also has eight electrical contacts 37A-37H for electrically connecting to the first terminal 21 to the eighth terminal 28 of the second RJ45 connector 2, respectively. The two ends of the first transmission line 311 can be respectively electrically connected to the electrical contacts 36C and 36F. The other ends of the two first transmission lines 311 can be electrically connected to the electrical contacts 37C and 37F, respectively, to pass through the electrical contacts 36C. 36F is electrically connected to the third terminal 13 and the sixth terminal 16 and is electrically connected to the third terminal 23 and the sixth terminal 26 via the electrical contacts 37C and 37F.

As shown in FIG. 2 and FIG. 3, in the embodiment, the second flexible circuit board layer 32 is provided with two second transmission lines 321 parallel to each other, two third transmission lines 322 parallel to each other, and two fourth transmission lines parallel to each other. 323. The second transmission line 321 and the second transmission line 322 and the second and fourth transmission lines 323 are disposed on the inner surface of the second flexible circuit board layer 32 adjacent to the spacer layer 33 to avoid exposure and protect. It may be disposed on an outer surface of the second flexible wiring board layer 32. In addition, the second transmission lines 321 are electrically connected to the fourth terminals 14 and 24 and the fifth terminals 15 and 25 corresponding to the respective connection terminal groups 10 and 20, and the second transmission lines 322 are electrically connected to the respective connection terminal groups 10 and 20, respectively. The corresponding first terminals 11, 21 and the second terminals 12, 22, and the second and fourth transmission lines 323 are electrically connected to the seventh terminals 17, 27 and the eighth terminals 18, 28 corresponding to the respective connection terminal groups 10, 20.

For example, as shown in FIG. 2 and FIG. 3, a plurality of electrical contacts may be respectively disposed at two ends of the second flexible circuit board layer 32 to be electrically connected to the first RJ45 connector 1 and the second RJ45 connector 2, respectively. The connecting terminal groups 10 and 20, for example, the second flexible circuit board layer 32 has eight electrical contacts 38A-38H at one end thereof for electrically connecting to the first terminal 11 to the eighth terminal 18 of the first RJ45 connector 1, respectively. The other end of the second flexible circuit board layer 32 has eight electrical contacts 39A-39H for electrically connecting to the first terminal 21 to the eighth terminal 28 of the second RJ45 connector 2, respectively. One end of the second transmission line 322 can be electrically connected to the electrical contacts 38A, 38B, and the other ends of the second transmission line 322 can be electrically connected to the electrical contacts 39A, 39B, respectively, via the electrical contacts 38A. The 38B and the electrical contacts 39A and 39B are electrically connected to the first terminals 11 and 21 and the second terminals 12 and 22 corresponding to the respective connection terminal groups 10 and 20, respectively. Two ends of the second transmission line 321 can be electrically connected to the electrical contacts 38D and 38E, respectively, and the other ends of the second transmission lines 321 can be electrically connected to the electrical contacts 39D and 39E, respectively, via the electrical contacts 38D. The 38E and the electrical contacts 39D and 39E are electrically connected to the fourth terminals 14 and 24 and the fifth terminals 15 and 25 corresponding to the respective connection terminal groups 10 and 20, respectively. One end of the second and fourth transmission lines 323 can be electrically connected to the electrical contacts 38G and 38H, respectively, and the other ends of the second and fourth transmission lines 323 can be respectively electrically connected to the electrical contacts 39G and 39H to pass through the electrical contacts 38G. The 38H and the electrical contacts 39G and 39H are electrically connected to the seventh terminals 17, 27 and the eighth terminals 18 and 28 corresponding to the respective connection terminal groups 10 and 20, respectively.

In some embodiments, the two first transmission lines 311, the second second transmission lines 321, the second and third transmission lines 322, and the second and fourth transmission lines 323 may be conductive lines, such as copper lines, silver paste lines, or other metal lines, but not The metal material is limited as long as it is a material having conductivity and can be used as a material for the transmission line. In some embodiments, the two first transmission lines 311 can be formed on the surface of the first flexible circuit board layer 31 by printing or etching, and the second transmission line 321, the second transmission line 322, and the second and fourth transmission lines 323 can also be printed. Or etching is formed on the surface of the second flexible wiring board layer 32.

In some embodiments, the two third transmission lines 322 and the second and fourth transmission lines 323 may also be disposed on the first flexible circuit board layer 31, or one of the two third transmission lines 322 and the second and fourth transmission lines 323. One flexible circuit board layer 31 is provided on the second flexible circuit board layer 32. For example, FIG. 4 is an exploded perspective view of another embodiment of the Ethernet transmission line of the present invention. The difference between this embodiment and the embodiment of FIG. 3 is that the second transmission line 313 of the thin connection line 30' is instead set to The surface of the first flexible wiring board layer 31. One ends of the second and fourth transmission lines 313 are electrically connected to the electrical contacts 36G and 36H, respectively, and the other ends of the second and fourth transmission lines 313 are electrically connected to the electrical contacts 37G and 37H, respectively, via the electrical contacts 36G, The 36H and the electrical contacts 37G and 37H are electrically connected to the seventh terminals 17, 27 and the eighth terminals 18 and 28 corresponding to the respective connection terminal groups 10 and 20, respectively.

Therefore, according to the Ethernet transmission line 100 of the embodiment of the present invention, the thin connecting line 30 between the first RJ45 connector 1 and the second RJ45 connector 2 is realized by a multilayer film, so that the thin connecting wire 30 can be made thinner and thinner. It is flexible and easy to install. For example, the thickness of the first flexible circuit board layer 31, the second flexible circuit board layer 32, and the spacer layer 33 may be between 0.06 mm and 0.2 mm, respectively, to form a thin connecting line. The overall thickness of 30 can be reduced to less than 0.6 mm. When the Ethernet transmission line 100 is used for indoor connection, it can easily pass through a gap or be installed in a narrow place. If the Ethernet transmission line 100 is used to connect an outdoor unit, it can directly pass through the door or window without affecting the opening and closing, so as to reduce the cost without additional construction (such as breaking the door or window or drilling a hole in the wall). Maintain a beautiful interior.

For example, as shown in FIG. 5 to FIG. 7, the first RJ45 connector 1 and the second RJ45 connector 2 of the Ethernet transmission line 100 can be an outdoor connector and an indoor connector, respectively. For example, in this embodiment, the second RJ45 connector 2 is connected to an indoor device 50. For example, the indoor device 50 can be a DSL modem, a gateway or a router. The first RJ45 connector 1 can be directly connected to the outdoor unit 51 through the window W. For example, the outdoor unit 51 can be a wireless network transceiver (such as a 5G transceiver or a Wi-Fi transceiver). Since the thin connecting wire 30 is extremely thin and can be easily flexed, the thin connecting wire 30 can be easily arranged along the window frame F of the window W (as shown in FIG. 6), so that the window W can be closed after being closed. The role does not affect the function of the original window W.

In addition, the thin connecting wire 30 of the embodiment of the present invention is disposed on the first flexible wiring board layer through the two first transmission lines 311 electrically connected to the third terminals 13, 23 and the sixth terminals 16, 26 of the connection terminal groups 10, 20. 31, and two second transmission lines 321 electrically connected to the fourth terminals 14, 24 and the fifth terminals 15, 25 of the connection terminal groups 10, 20 are disposed on the second flexible circuit board layer 32, so that the two first transmission lines 311 and The second second transmission line 321 avoids being in the same layer too close and can be further blocked by the spacer layer 33 to substantially reduce crosstalk between each other. In addition, in the thin connection line 30 of the embodiment of the present invention, the transmission lines (that is, the two first transmission lines 311, the second second transmission lines 321, the second and third transmission lines 322, and the second and fourth transmission lines) are compared to the conventional twisted pair. 323) It is easier to control to equal length and reduce transmission delay.

As shown in FIG. 7, the thin connecting cable 30 of the Ethernet transmission line 100 is further provided with a waterproof cover 40 adjacent to the first RJ45 connector 1 or the second RJ45 connector 2, in this embodiment. The waterproof cover 40 can be adjacent to the outdoor connector (here, the first RJ45 connector 1). When the first RJ45 connector 1 is connected to the outdoor device 51, the waterproof cover 40 can be assembled to the assembly slot 511 of the outdoor device 51. The first RJ45 joint 1 can be enclosed in the assembly groove 511 to achieve a waterproof effect. In an embodiment, the circumference of the waterproof cover 40 may further be provided with a water stop ring 401 (for example, a rubber ring or a rubber ring) to enhance the waterproof effect.

As shown in FIG. 3, in an embodiment, the spacer layer 33 of the thin connecting line 30 is further provided with a grounding line 331. The grounding line 331 can be interposed between the two second transmission lines 321 and the two first transmission lines 311 to further prevent The case where the second transmission line 321 and the two first transmission lines 311 crosstalk with each other.

As shown in FIG. 3, in the embodiment, the thin connecting wire 30 further includes two protective layers 34 and 35, and the two protective layers 34 and 35 are respectively wrapped on the first flexible circuit board layer 31 or the second flexible circuit board layer. The outer portion of 32 (here, the surface of the first flexible wiring board layer 31 and the second flexible wiring board layer 32 away from the spacer layer 33) serves to protect. For example, the protective layers 34, 35 may be a waterproof layer, such as a glue layer or coating made of a waterproof material, so that the thin connecting wire 30 can have a waterproof effect to facilitate connection of various devices outside the room.

In some embodiments, the protective layers 34, 35 may also be electromagnetic wave shielding layers, for example, single or multiple layers of conductive metals formed by the protective layers 34, 35 by means of vacuum sputtering or plating. The thin film (for example, silver, copper, nickel) has the electromagnetic connection shielding capability of the thin connecting wire 30. In one embodiment, the thickness of the protective layers 34, 35 can be controlled between 0.1 μm and 1 μm to maintain good flexibility of the thin connecting wires 30.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

100‧‧‧Ethernet transmission line

1‧‧‧First RJ45 connector

2‧‧‧Second RJ45 connector

10, 20‧‧‧ Connection terminal group

11, 21‧‧‧ first terminal

12, 22‧‧‧ second terminal

13, 23‧‧‧ third terminal

14, 24‧‧‧ fourth terminal

15, 25‧‧‧ fifth terminal

16, 26‧‧‧ sixth terminal

17, 27‧‧‧ seventh terminal

18, 28‧‧‧ eighth terminal

30, 30'‧‧‧ Thin connecting cable

31‧‧‧First flexible circuit board layer

311‧‧‧First transmission line

32‧‧‧Second flexible circuit board layer

321‧‧‧second transmission line

322‧‧‧ third transmission line

313, 323‧‧‧ fourth transmission line

33‧‧‧ spacer

331‧‧‧ Grounding wire

34, 35‧‧ ‧ protective layer

36A～36H‧‧‧Electrical contacts

37A～37H‧‧‧Electrical contacts

38A～38H‧‧‧Electrical contacts

39A～39H‧‧‧Electrical contacts

40‧‧‧Waterproof cover

401‧‧‧ water ring

50‧‧‧ indoor installation

51‧‧‧Outdoor installation

511‧‧‧Assemble slot

W‧‧‧ windows

F‧‧·window frame

1 is a perspective view showing an embodiment of an Ethernet transmission line of the present invention.  2 is a schematic diagram showing the connection of an embodiment of the Ethernet transmission line of the present invention.  Fig. 3 is an exploded perspective view showing an embodiment of an Ethernet transmission line of the present invention.  Fig. 4 is an exploded perspective view showing another embodiment of the Ethernet transmission line of the present invention.  [Fig. 5] A schematic diagram of an application of an embodiment of an Ethernet transmission line of the present invention.  [Fig. 6] Fig. 6 is a schematic diagram showing the line installation of an embodiment of the Ethernet transmission line of the present invention.  Fig. 7 is a perspective view showing another embodiment of the Ethernet transmission line of the present invention.  

Claims (10)

An Ethernet transmission line, including:  Two RJ45 connectors, each of the RJ45 connectors having a connection terminal group including a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a first a sixth terminal, a seventh terminal, and an eighth terminal, wherein the first terminal and the second terminal are first pair of differential terminals, and the third terminal and the sixth terminal are second pair of differential terminals, the fourth The terminal and the fifth terminal are a third pair of differential terminals, and the seventh terminal and the eighth terminal are a fourth pair of differential terminals;  a thin connecting wire is connected between the two RJ45 connectors, the thin connecting wire includes a first flexible circuit board layer, a second flexible circuit board layer and a spacing layer, and the spacing layer is sandwiched between the first flexible circuit Between the slab layer and the second flexible circuit board layer, the first flexible circuit board layer is provided with two first transmission lines, and the two first transmission lines are electrically connected to the third terminal corresponding to each of the connection terminal groups and the first a sixth terminal, the second flexible circuit board layer is provided with two second transmission lines, and the two second transmission lines are electrically connected to the fourth terminal and the fifth terminal respectively corresponding to the connection terminal groups.   The Ethernet transmission line of claim 1, further comprising two third transmission lines, wherein the two third transmission lines are disposed on the first flexible circuit board layer or the second flexible circuit board layer, and are electrically connected to the respective The first terminal and the second terminal corresponding to the connection terminal group. The Ethernet transmission line of claim 1, further comprising a second transmission line, wherein the second transmission line is disposed on the first flexible circuit board layer or the second flexible circuit board layer, and is electrically connected to each of the two The seventh terminal and the eighth terminal corresponding to the connection terminal group. The Ethernet transmission line of claim 1, wherein the thin connecting wire further comprises a protective layer covering at least the first flexible circuit board layer or the second flexible circuit board layer. The Ethernet transmission line of claim 4, wherein the protective layer is a waterproof layer. The Ethernet transmission line of claim 4, wherein the protective layer is an electromagnetic wave shielding layer. The Ethernet transmission line of claim 1, wherein the two first transmission lines are disposed on an inner surface of the first flexible circuit board layer, and the two second transmission lines are disposed on an inner surface of the second flexible circuit board layer. The Ethernet transmission line of claim 1, wherein the spacer layer of the thin connection line is provided with a ground line. The Ethernet transmission line of claim 1, wherein the two RJ45 connectors are an outdoor connector and an indoor connector. The Ethernet transmission line of claim 9, wherein the thin connection line further comprises a waterproof cover adjacent to the outdoor connector.