TWM636059U - Signal transmission line - Google Patents

Abstract

The present invention relates to a signal transmission line, which includes an inner conductor core wire, an insulating layer, a conductive layer and an outer cladding layer. The insulating layer covers the outer peripheral surface of the inner conductor core wire, the conductive layer covers the outer peripheral surface of the insulating layer, and the outer coating layer covers the outer peripheral surface of the conductive layer. The outer cladding layer at one end of the signal transmission line includes a thinned portion, wherein the cross-sectional area of the thinned portion is smaller than that of the unthinned outer cladding layer. The conductive layer is folded back to the thinned part of the outer cladding layer, wherein the conductive layer forms a folded part on the thinned part to reduce the cross-sectional area of one end of the signal transmission line. The signal transmission line can be equipped with a connector on the signal transmission line without reducing the wire diameter of the inner conductor core wire, so as to increase the distance of the signal transmission line for signal transmission.

Description

Signal transmission line

The present invention relates to a signal transmission line, which is beneficial to reducing the cross-sectional area of one end of the signal transmission line.

The signal transmission line is mainly used to transmit high-frequency signals. During the transmission process, the energy of the high-frequency signal is easily radiated from the transmission line to the outside in the form of electromagnetic waves, resulting in energy loss of the high-frequency signal. Therefore, signal transmission lines are usually equipped with related structures, such as shielding structures around the signal transmission line, to prevent high-frequency signal energy loss and external signal interference.

Coaxial cable is a kind of signal transmission line, which is widely used in communication, computer, local area network, automobile, medical equipment and other fields. Coaxial cables usually have a four-layer structure. The innermost layer is a conductive copper wire, and the copper wire is covered by a plastic layer. A thin layer of mesh conductor is arranged outside the plastic layer to reduce the interference of external electromagnetic signals, and an insulating sheath is arranged outside the mesh conductor.

According to the size of the coaxial cable, there are different standard specifications. For example, the outer diameter of the cable is about 0.24mm to 2.5mm. Generally speaking, the signal transmission distance of a coaxial cable is related to the diameter of the wire. When the outer diameter of the coaxial cable is larger, it is beneficial to transmit the signal to a longer distance.

The present invention provides a signal transmission line, which mainly includes at least one inner conductor core wire, one insulating layer, one conducting layer and one outer cladding layer. The insulating layer wraps the inner conductor core wire, while the conductive layer is arranged outside the insulating layer and covers the conductive layer through the outer covering layer.

A thinning part is arranged on the outer cladding layer at one or both ends of the signal transmission line, wherein the cross-sectional area of the thinning part is smaller than that of the outer cladding layer. The conductive layer is folded back to the thinned portion to form a folded portion at one or both ends of the signal transmission line. When connecting connectors or adapters of the same specification, the diameter of the signal transmission line of the present invention can be larger than that of ordinary signal transmission lines, and it is beneficial to increase the signal transmission distance of the signal transmission line.

To this end, the present invention provides a signal transmission line, a signal transmission line, including: an inner conductor core wire; an insulating layer covering the outer peripheral surface of the inner conductor core wire; a conductive layer covering the outer peripheral surface of the insulating layer; The cladding layer covers the outer peripheral surface of the conductive layer, wherein the outer cladding layer at one or both ends of the signal transmission line includes a thinned part, and part of the conductive layer is located on the thinned part; a metal shell covers the thinned part a conductive layer on the top; and an insulating shell covering the metal shell and part of the outer cladding layer.

This model provides another signal transmission line, including: a plurality of wires, including: an inner conductor core wire; an insulating layer, covering the outer peripheral surface of the inner conductor core wire; a conductive layer, covering a plurality of wires; an outer coating layer , covering the outer peripheral surface of the conductive layer, wherein the outer cladding layer at one or both ends of the signal transmission line includes a thinned part, and part of the conductive layer is located on the thinned part; a metal shell covers the thinned part a conductive layer; and an insulating shell covering the metal shell and part of the outer cladding layer.

In at least one embodiment of the present invention, wherein the thinned portion of the outer cladding layer includes at least one groove or at least one cut portion, and the conductive layer located in the groove or the cut portion is exposed, forming an exposed conductive layer , while the metal shell covers and connects the exposed conductive layer.

In at least one embodiment of the present invention, a metal conductive layer covering the exposed conductive layer is included.

In at least one embodiment of the present invention, the conductive layer is folded back to the thinned portion, and a folded portion is formed on the thinned portion, and the cross-sectional area of the folded portion is smaller than that of the outer cladding layer.

In at least one embodiment of the present invention, the thinned portion of the outer cladding layer includes at least one groove or at least one cut portion, and part of the reflexed portion of the conductive layer is located in the groove or the cut portion.

In at least one embodiment of the present invention, the wire includes a signal wire, a stream wire or a power wire.

Please refer to FIG. 1 and FIG. 2 , which are respectively a three-dimensional schematic view and a schematic cross-sectional view of an embodiment of the new signal transmission line. As shown in the figure, the signal transmission line 10 includes an inner conductor core wire 11, an insulating layer 13, a conductive layer 15 and an outer cladding layer 17, wherein the insulating layer 13 is used to cover the outer peripheral surface 113 of the inner conductor core wire 11, The conductive layer 15 is used to cover the outer peripheral surface of the insulating layer 13 , and the outer cladding layer 17 is used to cover the outer peripheral surface of the conductive layer 15 .

In an embodiment of the present invention, the inner conductor core wire 11 may be a conductive wire, such as a conductive copper wire, and includes two terminals 111 and an outer peripheral surface 113 , wherein the outer peripheral surface 113 is located between the two endpoints 111 . The insulating layer 13 covers the outer peripheral surface 113 of the inner conductor core wire 11 , wherein the insulating layer 13 can be extruded plastic, such as physically foamed polyethylene material or tape-wrapped polytetrafluoroethylene (PTFE).

Conductive layer 15 covers the outer peripheral surface of insulating layer 13, and wherein conductive layer 15 can be single-layer or multilayer structure, and for example conductive layer 15 can be by the reticular conductor that metal wire weaves or twines, aluminum foil and/or is made of aluminum foil wheat. The braided or twisted mesh structure forms a Faraday shield on the outer peripheral surface 113 of the inner conductor core wire 11 to prevent the inner conductor core wire 11 from being interfered by external electromagnetic signals.

In another embodiment of the present invention, the conductive layer 15 can be a two-layer structure, and includes a mesh conductor and an aluminum foil Mylar, wherein the aluminum foil Mylar covers the insulating layer 13, and the mesh conductor wraps an aluminum foil Mylar . Specifically, the insulating layer 13 is located between the inner conductor core wire 11 and the conductive layer 15, and can be used to isolate the inner conductor core wire 11 and the conductive layer 15, and make the outer peripheral surface 113 of the inner conductor core wire 11 and the conductive layer 15 maintain the same or a similar distance.

An outer jacket 17 covers the outer peripheral surface of the conductive layer 15 , wherein the outer jacket 17 is an insulating material. The outer cladding layer 17 has the functions of insulation and waterproof, and is used to protect and fix the conductive layer 15 to improve the mechanical strength of the signal transmission line 10 . For example, the outer cladding layer 17 comprises polyvinyl chloride (PVC), low density polyethylene (LDPE), fluorinated ethylene propylene copolymer (FEP) or thermoplastic elastomer (TPE). Specifically, the signal transmission line 10 of the embodiment of the present invention may be a coaxial cable.

As shown in Figure 3, when the signal transmission line 10 is to be connected to other devices, for example, a connector is arranged at one end of the signal transmission line 10, the insulating layer 13, the conductive layer 15 and the outer coating layer 17 at one or both ends of the signal transmission line 10 need to be removed. In addition, the inner conductor core wire 11 , insulating layer 13 and/or conductive layer 15 at one or both ends of the signal transmission line 10 are exposed.

A thinning portion 171 is provided on one or both ends of the outer cladding layer 17 of the signal transmission line 10 , wherein the cross-sectional area of the thinning portion 171 is smaller than that of the outer cladding layer 17 . In one of the multiple embodiments of the present invention, the appearance of the signal transmission line 10 is similar to a columnar body, and the thickness of the outer cladding layer 17 can be uniformly reduced along the radial direction of the columnar body by grinding or cutting. , so that the outer diameter of the thinned portion 171 is smaller than the outer diameter of the outer cladding layer 17 , for example, the cross sections of the outer cladding layer 17 and the thinned portion 171 are both annular.

In an embodiment of the present invention, as shown in FIG. 4 , the thinned portion 171 of the outer cladding layer 17 can be a groove 173. For example, the groove 173 can be arranged along the radial direction parallel to the outer cladding layer 17, and toward The direction of the conductive layer 15 is concave. In addition, the groove 173 can communicate with the conductive layer 15 , so that the conductive layer 15 inside the groove 173 is exposed.

In another embodiment of the present invention, as shown in FIG. 5 , the thinned portion 171 of the outer cladding layer 17 may be a cutout portion 175 , for example, two symmetrical cutout portions 175 are formed on the outer cladding layer 17 . The cutting portion 175 may include a cutting surface 1751 , wherein the cutting surface 1751 is a secant line of the circular section formed by the outer cladding layer 17 .

In another embodiment of the present invention, as shown in FIG. 6 , the cut surface 175 of the cut portion 175 can be connected to the conductive layer 15, and the conductive layer 15 located at the cut portion 175 is exposed, and an exposed conductive layer 153 is formed. .

As shown in Figures 1 and 2, after the setting of the thinned portion 171 is completed, the conductive layer 15 that was originally coated on the outer peripheral surface of the insulating layer 13 can be folded back to the thinned portion 171, so that the conductive layer 15 is placed on the thinned portion 171. A folded portion 151 is formed on the thinned portion 171 , wherein the folded portion 151 and the conductive layer 15 are kept connected. In different embodiments, the folded portion 151 of the conductive layer 15 may be located in the groove 173 or the cut portion 175 of the thinned portion 171 .

In actual application, as shown in FIG. 2 , the conductive layer 15 that is not covered by the outer coating layer 17 can be disassembled and folded toward the direction of the thinned portion 171, so that the conductive layer 15 covers the thinned portion 171. The end portion 1711 and the outer peripheral surface 1713 . After the conductive layer 15 is folded back to the thinned portion 171 , the insulating layer 13 originally covered by the conductive layer 15 will be exposed.

As shown in Figures 7 and 8, a metal conductive layer 19 can be further provided on the reflexed portion 151, for example, the metal conductive layer 19 can be copper foil, and the reflexed portion 151 of the conductive layer 15 is covered with the metal conductive layer 19 . In another embodiment of the present invention, the conductive metal layer 19 may not be provided on the surface of the folded portion 151 , and the conductive metal layer 19 is neither a necessary component of the present invention nor a limitation of the scope of rights of the present invention.

In another embodiment of the present invention, as shown in FIG. 9 and FIG. 10 , the outer cladding layer 17 and/or conductive layer 15 at one or both ends of the signal transmission line 10 can be selected to be removed, so that part of the insulating layer 13 and part of the The conductive layer 15 is exposed, and an exposed conductive layer 153 is formed at one or both ends of the signal transmission line 10 , wherein the exposed conductive layer 153 has a diameter smaller than that of the outer coating layer 17 . In this embodiment, there is no need to form the thinned portion 171 on the outer cladding layer 17 at one or both ends of the signal transmission line 10 , nor does it need to bend the exposed conductive layer 15 .

As shown in Figures 11 and 12, a metal conductive layer 19 can be further formed on the surface of the exposed conductive layer 153 exposed on the thinned portion 171, the groove 173 or the cut portion 175 in FIG. Fold back to groove 173 or cutout 175 . The metal conductive layer 19 is used to cover the exposed conductive layer 153, the thinned portion 171, the groove 173 and/or the cut portion 175, so that the cross-section of the metal conductive layer 19, the cut portion 175 and the exposed conductive layer 153 is approximately elliptical, Long oval, rectangular.

As shown in FIG. 13 , one end of the signal transmission line 10 in FIG. 1 , FIG. 2 , FIG. 7 and FIG. 8 can be provided with a metal shell 12 , wherein the metal shell 12 is used to cover and contact the reflexed portion 151 of the conductive layer 15 And/or metal conductive layer 19. In an embodiment of the present invention, the metal shell 12 may be a hollow sleeve and has an accommodating space 121 . The metal shell 12 is used to cover one end of the signal transmission line 10, so that the metal conductive layer 19, the reflexed portion 151, the thinned portion 171, the insulating layer 13 and/or the inner conductor core wire 11 are located in the accommodation space of the metal shell 12 Within 121. For example, the metal shell 12 can be disposed radially outside of the thinned portion 171 of the outer cladding layer 17 , and the reflexed portion 151 disposed on the thinned portion 171 will contact the inside of the metal shell 12 .

As shown in Figure 14, one end of the signal transmission line 10 in Figure 9, Figure 10, Figure 11 and Figure 12 can be provided with a metal shell 12, wherein the metal conductive layer 19 covers the exposed conductive layer 153, and the metal shell 12 is used The metal conductive layer 19 is covered so that the metal conductive layer 19 , the exposed conductive layer 153 , the insulating layer 13 and/or the inner conductor core wire 11 are located in the accommodating space 121 of the metal shell 12 .

In another embodiment of the present invention, the metal shell 12 can be a two-piece component, and the two-piece metal shell 12 can be sandwiched between the metal conductive layer 19 and/or the reflexed portion 151 from both sides during installation. , and fix the two-piece metal casing 12 by rivets or screws, so that the two-piece metal casing 12 clamps the metal conductive layer 19 and/or the reflexed portion 151 of the signal transmission line 10 . Then, part of the metal case 12 and part of the outer covering layer 17 of the signal transmission line 10 can be covered by the insulating case 14 to further stabilize the connection between the metal case 12 and the signal transmission line 10 .

In actual application, a circuit board, a connection interface or a control unit can be arranged in the accommodation space 121 of the metal shell 12 to form a connector, such as a USB connector, a Type-C USB connector or an HDMI connector. Therefore, the height or width of the metal shell 12 must meet the relevant specifications of the connector, so that the size of the metal shell 12 and the accommodating space 121 are limited to a certain extent.

In actual application, the height and width of the accommodating space 121 must be greater than the outer diameter of the signal transmission line 10 , so that the signal transmission line 10 can be placed in the accommodating space 121 of the metal casing 12 . Therefore, the size of the metal shell 12 and the accommodating space 121 will inevitably limit the wire diameters of the signal transmission line 10 and the inner conductor core wire 11 .

The diameter of the inner conductor core wire 11 will affect the signal transmission distance of the signal transmission line 10 . Specifically, when the diameter of the inner conductor core wire 11 is larger, the signal transmission distance of the signal transmission line 10 will increase accordingly. Conversely, when the diameter of the inner conductor core wire 11 is smaller, the signal transmission distance of the signal transmission line 10 will be reduced. Therefore, for conventional signal transmission lines, when the height or width of the metal shell 12 and the accommodating space 121 is small, the wire diameter and signal transmission distance of the signal transmission line will be reduced.

For this reason, the present invention proposes to set a thinning portion 171 on the outer covering layer 17 at one or both ends of the signal transmission line 10, as shown in FIGS. portion 151 and/or metal conductive layer 19, as shown in FIG. 7 and FIG. 8 .

Since the cross-sectional area, outer diameter, height and/or width of the thinned portion 171 will be smaller than that of the outer cladding layer 17, the distance between the metal shell 12 and the accommodating space 121 and the signal transmission line 10 and the inner conductor core wire 11 will be reduced. restrictions imposed by the diameter. Specifically, through the design of the signal transmission line 10 described in the present invention, it is possible to increase the number of signal transmission lines 10 connected to the metal shell 12 and the interior while the size and/or shape of the metal shell 12 and the accommodating space 121 are the same. The diameter and cross-sectional area of the conductor core wire 11 can increase the signal transmission distance of the signal transmission line 10 .

In addition, the present invention also proposes to remove the outer cladding layer 17 and/or conductive layer 15 at one or both ends of the signal transmission line 10, as shown in FIG. 9 and FIG. The thinned portion 171 , the groove 173 or the cut portion 175 , wherein the conductive layer 15 is exposed on the thinned portion 171 , the groove 173 or the cut portion 175 , and forms the exposed conductive layer 153 , as shown in FIG. 6 . Then, a metal conductive layer 19 is disposed on the exposed conductive layer 153 , as shown in FIG. 11 and FIG. 12 . Similarly, under the same size and/or shape of the metal shell 12 and the accommodating space 121, the diameter and cross-sectional area of the signal transmission line 10 and the inner conductor core wire 11 connected to the metal shell 12 can be increased, and the signal transmission line 10 can be improved. signal transmission distance.

Please refer to FIG. 15 and FIG. 16 , which are respectively a three-dimensional schematic view and an axial cross-sectional schematic view of another embodiment of the new signal transmission line. As shown in the figure, the signal transmission line 20 includes a plurality of wires 21, a conductive layer 15 and an outer coating layer 17, wherein the conductive layer 15 covers the wires 21, and the outer coating layer 17 covers the outer periphery of the conductive layer 15. noodle.

The wire 21 includes an inner conductor core wire 212 and an insulating layer 214 , wherein the insulating layer 214 covers the outer peripheral surface of the inner conductor core wire 212 . In different embodiments, the wire 21 may also include a conductive layer and/or a coating layer, wherein the conductive layer covers the insulating layer 214 , and the coating layer covers the conductive layer, forming a structure similar to the signal transmission line 10 .

The conductive layer 15 of the signal transmission line 20 can be a single-layer or multi-layer structure. For example, the conductive layer 15 can be a mesh conductor braided or twisted by metal wires, aluminum foil and/or a mesh structure braided or twisted by aluminum foil Mylar.

The outer covering layer 17 is made of insulating material, for example, the outer covering layer 17 includes polyvinyl chloride (PVC), low density polyethylene (LDPE), fluorinated ethylene propylene copolymer (FEP) or thermoplastic elastomer (TPE).

The wires 21 at one or both ends of the signal transmission line 20 of the present invention are not covered by the conductive layer 15 and the outer coating layer 17 , and part of the conductive layer 15 is not covered by the outer coating layer 17 .

In addition, a thinning portion 171 is provided on the outer cladding layer 17 at one or both ends of the signal transmission line 20, wherein the cross-sectional area and/or outer diameter of the thinning portion 171 are smaller than the outer cladding layer 17, for example, along the outer cladding layer 17. The coating layer 17 is uniformly thinned in the radial direction to form a thinned portion 171 on the outer coating layer 17 . In different embodiments, a groove 173 or a cut portion 175 may also be provided on the outer cladding layer 17 to form a structure similar to that shown in FIG. 4 to FIG.

As shown in Fig. 15, Fig. 16 and Fig. 19, the conductive layer 15 that is not covered by the outer cladding layer 17 can be folded onto the thinned portion 171, and a folded portion 151 is formed on the thinned portion 171, for example Part of the reflexed portion 151 of the conductive layer 15 is located in the groove or the cutout portion. Then, a conductive metal layer 19 can be further provided on the folded portion 151 , for example, the conductive metal layer 19 can be copper foil, and wraps the folded portion 151 completely in a winding manner. The metal shell 12 is used to cover the metal conductive layer 19 and/or the reflexed portion 151, and an insulating shell 14 can be provided on the metal shell 12 and part of the outer covering layer 17 of the signal transmission line 20 to form a metal shell 14 similar to that shown in FIG. 13 . described structure.

In another embodiment of the present invention, as shown in FIG. 17 and FIG. 18 , the cutout portion 175 can be connected to the conductive layer 15 , so that the conductive layer 15 on the cutout portion 175 is exposed. Then, the conductive metal layer 19 can be directly disposed on the exposed conductive layer 153 exposed in the groove 173 or the cutout portion 175 without folding the conductive layer 15 back to the groove 173 or the cutout portion 175 .

As shown in FIG. 20, a metal conductive layer 19 can be provided on the exposed conductive layer 153 of the signal transmission line 20 described in FIG. 17 and FIG. Inside. Taking the exposed conductive layer 153 on the cut portion 175 as an example, the metal conductive layer 19 can be directly wound on the cut portion 175 and the exposed conductive layer 153, so that the metal conductive layer 19, the cut portion 175 and the exposed conductive layer 153 The cross section is approximately elliptical. Then, the metal conductive layer 19 can be covered through the metal shell 12 , and the metal conductive layer 19 and the outer cladding layer 17 can be covered with the insulating shell 14 to form a structure similar to that described in FIG. 14 . In this embodiment, there is no need to fold the conductive layer 15 to the thinned portion 171 , the groove 173 or the cut portion 175 , which improves the convenience of installation.

As shown in FIG. 21 , the outer cladding layer 17 at one or both ends of the signal transmission line 20 can also be removed, so that part of the conductive layer 15 is exposed, and an exposed conductive layer 153 is formed at one end or both ends of the signal transmission line 20, wherein The wire diameter of the exposed conductive layer 153 is smaller than the wire diameter of the outer covering layer 17 . Then, the metal conductive layer 19 and the metal shell 12 are sequentially disposed outside the exposed conductive layer 153 . In this embodiment, there is no need to form the thinned portion 171 on the outer cladding layer 17 at one or both ends of the signal transmission line 20 , nor does it need to fold the exposed conductive layer 15 .

As shown in FIG. 19, FIG. 20 and FIG. 21, the conductive layer 15 of the signal transmission line 20 can be provided with a wire 21 that can include at least one first wire 211, at least one second wire 213, at least one third wire 215 and/or at least one A fourth wire 217, for example, the first wire 211 can be a signal wire, an electric wire or a coaxial cable, the second wire 213 can be a CC wire, an SBU1 wire, an SBU2 wire and/or a Vconn wire, etc., and the third wire 215 can be a drain wire (drain wire), and the fourth wire 217 may be a power wire. In actual application, the structure of the first wire 211 , the second wire 213 , the third wire 215 and the fourth wire 217 can be changed and adjusted so that the above wire 21 has the functions of signal transmission, energy transmission or grounding.

Specifically, the signal transmission line 20 of this new embodiment can be a high-frequency signal transmission line, such as a USB signal transmission line or an HDMI connector, and the metal shell 12 forms a USB connector, a Type-C USB connector or an HDMI connector.

The above is only one of the preferred embodiments of the present invention, and is not intended to limit the scope of implementation of the present invention, that is, any equal changes and changes made according to the shape, structure, characteristics and spirit described in the patent scope of the present application Modifications should be included in the scope of the patent application for the present model.

10: Signal transmission line 11: Inner conductor core wire 111: endpoint 113: Outer peripheral surface 12: Metal shell 121:Accommodating space 13: Insulation layer 14: Insulation housing 15: Conductive layer 151: Reflexed part 153: exposed conductive layer 17: Outer coating layer 171: thinning part 1711: end 1713: Peripheral surface 173: Groove 175: cutting department 1751: cut face 19: Metal conductive layer 20: Signal transmission line 21: wire 211: The first wire 212: inner conductor core wire 213: Second wire 214: insulating layer 215: The third wire 217: The fourth wire

[Fig. 1] is a three-dimensional schematic view of an embodiment of the new signal transmission line.

[Fig. 2] is a schematic cross-sectional view of the above embodiment of the new signal transmission line.

[ FIG. 3 ] is a three-dimensional schematic view of an embodiment of the thinned portion of the new signal transmission line.

[ FIG. 4 ] is a three-dimensional schematic view of another embodiment of the thinned portion of the new signal transmission line.

[ FIG. 5 ] is a three-dimensional schematic view of another embodiment of the thinned portion of the new signal transmission line.

[ FIG. 6 ] is a three-dimensional schematic view of another embodiment of the thinned portion of the novel signal transmission line.

[ FIG. 7 ] is a three-dimensional schematic view of another embodiment of the new signal transmission line.

[ FIG. 8 ] is a schematic cross-sectional view of the above embodiment of the new signal transmission line.

[ FIG. 9 ] is a three-dimensional schematic view of another embodiment of the new signal transmission line.

[ Fig. 10 ] is a schematic cross-sectional view of the above embodiment of the new signal transmission line.

[ FIG. 11 ] is a three-dimensional schematic view of another embodiment of the new signal transmission line.

[ Fig. 12 ] is a schematic cross-sectional view of the above embodiment of the new signal transmission line.

[ FIG. 13 ] is a schematic cross-sectional view of an embodiment of the new signal transmission line.

[ Fig. 14 ] is a schematic cross-sectional view of another embodiment of the new signal transmission line.

[ Fig. 15 ] is a three-dimensional schematic view of another embodiment of the new signal transmission line.

[ Fig. 16 ] is a schematic axial cross-sectional view of the above-mentioned embodiment of the new signal transmission line.

[ FIG. 17 ] is a three-dimensional schematic view of another embodiment of the new signal transmission line.

[ Fig. 18 ] is a schematic axial cross-sectional view of the above-mentioned embodiment of the new signal transmission line.

[ Fig. 19 ] is a radial cross-sectional schematic view of an embodiment of the new signal transmission line.

[ FIG. 20 ] is a schematic radial cross-sectional view of another embodiment of the new signal transmission line.

[ Fig. 21 ] is a radial cross-sectional schematic view of another embodiment of the new signal transmission line.

10: Signal transmission line

11: Inner conductor core wire

13: Insulation layer

151: Reflexed part

17: Outer coating layer

Claims (10)

A signal transmission line, comprising: an inner conductor core wire; an insulating layer covering the outer peripheral surface of the inner conductor core wire; a conductive layer covering the outer peripheral surface of the insulating layer; an outer cladding layer covering the outer peripheral surface of the conductive layer, wherein the outer cladding layer at one or both ends of the signal transmission line includes a thinned portion, and part of the conductive layer is located on the thinned portion; a metal shell covering the conductive layer on the thinned portion; and An insulating casing wraps the metal casing and part of the outer cladding layer. The signal transmission line as claimed in item 1, wherein the thinned portion of the outer cladding layer includes at least one groove or at least one cut portion, and the conductive layer located in the groove or the cut portion is exposed , forming an exposed conductive layer, and the metal shell covers and connects the exposed conductive layer. The signal transmission line according to claim 2, comprising a metal conductive layer covering the exposed conductive layer. The signal transmission line according to claim 1, wherein the conductive layer is folded to the thinned portion, and a folded portion is formed on the thinned portion, and the cross-sectional area of the folded portion is smaller than that of the outer cladding layer area. The signal transmission line according to claim 4, wherein the thinned portion of the outer cladding layer includes at least one groove or at least one cut portion, and part of the reflexed portion of the conductive layer is located in the groove or the cut Cut inside. A signal transmission line, comprising: Multiple conductors, including: an inner conductor core wire; an insulating layer covering the outer peripheral surface of the inner conductor core wire; A conductive layer covering the plurality of wires: an outer cladding layer covering the outer peripheral surface of the conductive layer, wherein the outer cladding layer at one or both ends of the signal transmission line includes a thinned portion, and part of the conductive layer is located on the thinned portion; a metal shell covering the conductive layer on the thinned portion; and An insulating casing wraps the metal casing and part of the outer cladding layer. The signal transmission line as claimed in claim 6, wherein the thinned portion of the outer cladding layer includes at least one groove or at least one cut portion, and the conductive layer located in the groove or the cut portion is exposed , forming an exposed conductive layer, and the metal shell covers and connects the exposed conductive layer. The signal transmission line according to claim 7, comprising a metal conductive layer covering the exposed conductive layer. The signal transmission line as claimed in claim 8, wherein the conductive layer is folded to the thinned portion, and a folded portion is formed on the thinned portion, and the cross-sectional area of the folded portion is smaller than the cross-sectional area of the outer cladding layer area. The signal transmission line according to claim 6, wherein the wire includes a signal line, a flow line or a power line.

Images