Cable arrangement

Abstract

A cable device having improved electromagnetic interference (EMI) shielding performance is provided. The cable device includes a cable including an optical fiber, a connector including a printed circuit board and a conductive housing, wherein the printed circuit board is connected to the cable and includes a ground electrode, a connection member disposed around a connection portion between the cable and the connector, and a metal shell surrounding a portion of the cable inside the connection member, the metal shell being configured to shield the cable and the connector from electromagnetic interference.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority from Korean Patent Application No. 10-2019-0125924, filed on October 11, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to an electrical cable arrangement, and more particularly, to an electrical cable arrangement having improved electromagnetic interference (EMI) shielding performance. Background Art

[0004] Electromagnetic interference (EMI) is caused by the interaction of electromagnetic disturbances with electromagnetic signals. Due to the increased use of electromagnetic wave technology, the difficulties caused by EMI have increased.

[0005] Therefore, electronic products have been required to have an electromagnetic shielding structure.

[0006] The cable may include a conductor, such as a copper wire, for high-voltage power transmission. The cable may have an electromagnetic shielding structure surrounding the conductor to shield electromagnetic waves generated from the conductor.

[0007] The cable including the electromagnetic shielding structure may have a black or prominent primary color. When the cable having a black or primary color is connected to an electronic device, the cable may be exposed to the outside of the electronic device and may deteriorate the appearance because the cable is easily recognized with the naked eye.

[0008] Furthermore, a cable without an electromagnetic shielding structure is called an invisible cable because it is difficult to be recognized with the naked eye. Recently, invisible cables have become popular in order to prevent design degradation of electronic devices caused by colored cables.

[0009] However, it is difficult for such a stealth cable to be shielded from electromagnetic radiation emitted from a connector connected to the stealth cable. Summary of the Invention

[0010] A cable arrangement having improved electromagnetic interference (EMI) shielding performance is provided.

[0011] A cable device capable of reducing electromagnetic compatibility (EMC) noise without including a separate shielding structure is also provided.

[0012] A cable apparatus capable of improving EMI / electrostatic discharge (ESD) shielding performance in an optical cable including conductors is also provided.

[0013] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

[0014] According to an aspect of the disclosure, a cable device can include a cable including an optical fiber, a connector including a printed circuit board and a conductive housing, the printed circuit board being connected to the cable and including a ground electrode, a connection member disposed to surround a connection portion between the cable and the connector, and a metal shell surrounding a portion of the cable inside the connection member, the metal shell being configured to shield the cable and the connector from electromagnetic interference.

[0015] The metal shell can include a metal body having a cylindrical shape, and a contact portion configured to connect the metal body to the conductive housing.

[0016] The connection member can be formed of an insulating material.

[0017] The conductive housing can be connected to the ground electrode.

[0018] The contact portion can be formed of a metal material.

[0019] The connection member can include at least one cutout portion, and the contact portion can not overlap the at least one cutout portion.

[0020] The contact portion can include at least one of a metal wire, a metal plate, a metal rod, and a braided wire.

[0021] The metal shell can include a plurality of cylinders coupled to each other and having different diameters.

[0022] The metal shell can further include an adjustment device, wherein the adjustment device is configured to adjust the plurality of cylinders in an extendable manner.

[0023] The adjustment device can include a handle, wherein the handle is configured to move the plurality of cylinders in a sliding manner to increase or decrease an overlap of the plurality of cylinders.

[0024] The adjustment device can further include a guide portion, wherein the guide portion has a plurality of grooves configured to lock the handle at different positions.

[0025] The metal shell can include a metal band, wherein the metal band is configured to wrap around an outside of the cable when rotated.

[0026] A length of the metal band can be changeable according to a number of rotations of the metal band around the cable.

[0027] The cable device can further include a rotating rod configured to change the number of rotations of the metal band around the cable.

[0028] According to an aspect of the disclosure, a cable device includes a cable including an optical fiber, a connector including a printed circuit board and a conductive housing, wherein the printed circuit board is connected to the cable and includes a ground electrode, a connection member formed of an insulating material, the connection member being configured to connect the cable to the connector, and a metal shell surrounding a portion of the cable inside the connection member and including a contact part connecting the metal shell and the conductive housing, wherein the metal shell is configured to shield the cable and the connector from electromagnetic interference.

[0029] The metal shell can include a cylinder formed of a metal material, and an adjustment device configured to change a length of the metal shell.

[0030] The conductive housing can be connected to the ground electrode.

[0031] The connection member can include at least one cutout part, the at least one cutout part can include at least one slit, and the contact part can be separated from the at least one slit.

[0032] The metal shell can include a plurality of cylinders coupled to each other and having different diameters.

[0033] The adjustment device can include a handle, wherein the handle is configured to adjust the plurality of cylinders telescopically to increase or decrease an overlap of the plurality of cylinders.

[0034] According to an aspect of the disclosure, a cable device includes a cable including an optical fiber, a connector attached to an end of the cable, the connector including a plug configured to transmit data received from the optical fiber, a metal shell surrounding the end of the cable, and a connection member attached to the connector and surrounding the metal shell, wherein a length of the metal shell is adjustable to shield electromagnetic radiation of different frequencies. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and other aspects, features, and advantages of certain embodiments of the disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is a perspective view illustrating a cable device disposed in a display apparatus according to an embodiment;

[0037] Figure 2 is a perspective view illustrating a cable device according to an embodiment;

[0038] Figure 3 is a cross-sectional view illustrating a cable of a cable device according to an embodiment;

[0039] Figure 4is an exploded perspective view showing a cable device according to an embodiment;

[0040] Figure 5 is a schematic view showing a printed circuit board connected to a cable device according to an embodiment;

[0041] Figure 6 is a schematic view showing a metal case of a cable device according to an embodiment;

[0042] Figure 7 is a schematic view showing a contact portion and a metal case according to an embodiment;

[0043] Figure 8 is a schematic view showing a metal case and an adjustment device according to another embodiment;

[0044] Figure 9 is a schematic view showing a metal case and an adjustment device according to another embodiment;

[0045] Figure 10 is a schematic view showing an adjustment device according to another embodiment;

[0046] Figure 11 is a schematic view showing a metal case and an adjustment device according to still another embodiment; and

[0047] Figure 12 is a schematic view showing a metal case and an adjustment device according to still another embodiment. DETAILED DESCRIPTION

[0048] The embodiments described in the present disclosure and the configurations shown in the accompanying drawings are merely examples of the embodiments of the present disclosure, and can be modified in various different ways to replace the embodiments of the present disclosure and the accompanying drawings at the time of filing the present application.

[0049] In addition, the same reference numbers or symbols shown in the accompanying drawings of the present disclosure indicate elements or components performing substantially the same functions. The relative sizes and drawings of these elements are not necessarily to scale, and can be exaggerated for clarity, illustration, and convenience.

[0050] Further, the terms used herein are used to describe exemplary embodiments, and are not intended to limit and / or restrict the present disclosure. The singular forms are intended to include the plural forms unless the context clearly indicates otherwise. In the present disclosure, the terms "include," "have," and the like are used to designate features, numbers, steps, operations, elements, components, or a combination thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or a combination thereof.

[0051] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these terms are not limited to this. These terms are only used to distinguish one element, component, region, layer and / or section from another element, component, region, layer and / or section. For example, a first element can be termed a second element, and, similarly, a second element can be termed a first element, without departing from the scope of the present disclosure. The term "and / or" includes multiple combinations of the associated listed items or any one of the items of the multiple associated items.

[0052] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings.

[0053] In general, a data receiver can be configured to receive data from a data transmitter through a data transmission apparatus and display or reproduce the received data. Examples of the data receiver can include a multimedia playback apparatus such as a television or an audio device.

[0054] A data transmitter can be configured to transmit data to a data receiver through a data transmission apparatus in response to a request from the data receiver or a determination of the data transmitter. The data transmitter can include a connection portion connectable to the data transmission apparatus. Examples of the data transmitter can include a multimedia providing apparatus such as a set-top box or a data box.

[0055] A data transmission apparatus can transmit data received from a data transmitter to a data receiver. The data transmission apparatus can include a connection portion for connection with the data transmitter and a connection portion for connection with the data receiver. Examples of the data transmission apparatus can include an optical cable.

[0056] A data transmission apparatus can include at least one signal line for data signal transmission and one or more power lines for power transmission. The one or more signal lines can include an optical fiber, and the one or more power lines can include a copper wire.

[0057] The at least one power line can include one or more standby power lines configured to transmit standby power to maintain a standby mode when the data transmitter and the data receiver are in the standby mode, and one or more main power lines configured to transmit main power to maintain an operation mode when the data transmitter and the data receiver are in the operation mode.

[0058] In the following description, a display device will be described as an example of a data receiver, and a source apparatus will be described as an example of a data transmitter.

[0059] Figure 1 FIG. 1 is a perspective view showing a cable apparatus disposed in a display device according to an embodiment, Figure 2 FIG. 2 is a perspective view showing a cable apparatus according to an embodiment, and Figure 3 FIG. 3 is a cross-sectional view showing a cable of a cable apparatus according to an embodiment.

[0060] like Figure 1 、 Figure 2 and Figure 3 As shown, the display device 1 may be connected to the source device 2 via a cable device 10 .

[0061] The display apparatus 1 is configured to display an image based on data received from the cable device 10. The display apparatus 1 may include a port 1a for physical / electrical connection of the cable device 10.

[0062] The source device 2 is configured to transmit data from various sources to the display apparatus 1. The source device 2 may include a port 2a for physical / electrical connection of the cable device 10.

[0063] The cable apparatus 10 may include a cable 20 and connectors 30 connected to respective ends of the cable 20. The connectors 30 may include a first connector 31 at one end of the cable 20 and a second connector 32 at an opposite end of the cable 20.

[0064] The cable device 10 is configured to physically / electrically connect the display device 1 to the source device 2. The cable device 10 may include a first connector 31 and a second connector 32 for providing electrical connections between the display device 1 and the cable device 10, and between the source device 2 and the cable device 10. The cable device 10 may receive data from the source device 2 through the first connector 31 and transmit the received data to the display device 1 through the second connector 32. The first connector 31 and the second connector 32 may be provided to have the same configuration or different configurations.

[0065] A plug 31a may be provided in the first connector 31 to couple the first connector 31 to the port 2a of the source device 2. A plug 32a may be provided in the second connector 32 to couple the second connector 32 to the port 1a of the display apparatus 1.

[0066] The cable arrangement 10 may include a cable 20 for connecting a first connector 31 to a second connector 32. The cable 20 may interconnect the first connector 31 and the second connector 32.

[0067] The cable 20 may allow light to be transmitted therethrough, and thus it may be difficult for a user to identify the cable 20 with the naked eye. The cable 20 may include a conductor 21, a plurality of optical fibers 22, a jacket 23 accommodating the conductor 21 and the plurality of optical fibers 22, and a filler 24 filling a space between the conductor 21 and the plurality of optical fibers 22. The filler 24 may be a transparent material.

[0068] The sheath 23 and the filler 24 through which light is transmitted may be transparent.The sheath 23 and the filler 24 may be formed of a transparent material that transmits some light waves or light waves having a specific wavelength.

[0069] The conductor 21 can transmit power from the source device 2 to the display apparatus 1. The conductor 21 can include a copper wire.

[0070] The plurality of optical fibers 22 can transmit optical signals from the source device 2 to the display apparatus 1.

[0071] The plurality of optical fibers 22 can provide a transmission medium for the optical signals, and can be composed of a transparent core and a transparent cladding.

[0072] The core for transmitting the optical signals can be located at the center of the optical fiber 22, and can have a relatively high refractive index. The optical signals can be totally reflected in the core in a longitudinal direction. The cladding for confining the optical signals in the core is disposed outside the core and has a relatively low refractive index.

[0073] The sheath 23 is located at the outermost portion of the cable 20, and can be configured to protect the conductor 21 and the plurality of optical fibers 22 from an external environment. The sheath 23 can be formed of an insulating material. The sheath 23 can be formed of a single material, such as a single piece manufactured by an extrusion process. The sheath 23 can have a high tensile strength and a high hardness.

[0074] The sheath 23 can be formed of a material through which light is transmitted. For example, the sheath 23 can include polyvinyl chloride (PVC).

[0075] The sheath 23 can be formed into a tube shape, and can surround the plurality of optical fibers 22 to form a protective layer.

[0076] The sheath 23 can transmit light to be less visible to the naked eye. For example, the sheath 23 can be transparent to transmit light. The sheath 23 can allow light incident to the sheath 23 to pass therethrough. Also, the plurality of optical fibers 22, the filler 24, and the conductor 21 disposed in the inside of the sheath 23 can also transmit light.

[0077] Accordingly, a user can recognize light passing through the sheath 23 according to a viewing angle, and thus the user can perceive the cable 20 as a floor or surroundings in which the cable 20 is placed. Accordingly, it can be difficult for the user to recognize the cable 20 with the naked eye.

[0078] According to an embodiment, the cable 20 can not include the filler 24 disposed in the inside of the sheath 23 to fill a space around the conductor 21 and the plurality of optical fibers 22.

[0079] In some embodiments, the filler 24 can be configured to prevent the cable 20 from being bent beyond a predetermined angle, so as to prevent the plurality of optical fibers 22 from being cut due to the bending. That is, the filler 24 can be provided to reinforce the optical fibers having a relatively low bending strength. According to embodiments, the cable 20 can include the conductor 21 inside the sheath 23, and the conductor 21 can have a relatively high bending strength. The bending strength of the cable 20 can be increased due to the conductor 21 disposed inside the sheath 23. Accordingly, even when no additional filler is disposed inside the sheath 23, the optical fibers 22 can be prevented from being cut due to the bending of the cable 20 by increasing the bending strength of the cable 20.

[0080] According to embodiments, the cable 20 of the cable device 10 can not include an electromagnetic interference (EMI) shielding structure.

[0081] The cable 20 can include the conductor 21 inside the sheath 23. In some embodiments, the cable including the conductor 21 can include an EMI shielding structure to shield electromagnetic waves transmitted from an external device to the outside of the cable through the conductor. For example, the EMI shielding structure can include an aluminum foil and / or a braided wire disposed to surround the conductor. However, the cable including the EMI shielding structure has a color, such as black, which is significantly noticeable to a user. Accordingly, the cable visible to the user can deteriorate the appearance of the electronic device. In order to improve the aesthetic of the electronic device without deteriorating the appearance of the electronic device, the cable 20 can not include the EMI shielding structure. However, when the cable does not include the EMI shielding structure, it is difficult to shield EMI in the connectors connected to the cable, and thus a method for shielding EMI can be required. According to embodiments, for the cable device 10 including the cable 20 that does not include the EMI shielding structure and includes a conductor capable of transmitting power, it is possible to improve the EMI shielding performance in the first connector 31 and the second connector 32 connected to the cable 20.

[0082] Figure 4 FIG. 1 is a perspective view illustrating a cable device according to an embodiment, and Figure 5 FIG. 2 is a schematic view illustrating a printed circuit board connected to the cable device according to an embodiment.

[0083] As Figure 4 and Figure 5 illustrated in FIGS. 1 and 2, the cable device 10 can include a metal case 100 disposed between the cable 20 and the connector 30, which can be the first connector 31 and / or the second connector 32.

[0084] A connection member 200 can be disposed between the cable 20 and the connector 30. The connection member 200 can be formed of an insulating material. For example, the connection member 200 can be formed of a rubber or plastic material. The connection member 200 can connect the cable 20 and the connector 30. The connection member 200 can be configured to move the cable 20 connected to the connector 30 to a certain degree. The connection member 200 can surround a connection portion between the cable 20 and the connector 30. The connection member 200 can allow the cable 20 to be flexibly moved. The connection member 200 can be formed of a flexible material including PVC, PC, and plastic.

[0085] A metal shell 100 can be disposed inside the connection member 200. The metal shell 100 can be formed in a tubular shape. The metal shell 100 can be formed of a metal material. The metal shell 100 can be disposed between the outside of the cable 20 and the inside of the connection member 200. The metal shell 100 can include a hollow portion 110a extending therethrough. The metal shell 100 can include a cylindrical metal body (tube) 110 defining the hollow portion 110a. The metal shell 100 can be configured to shield EMI between the cable 20 and the connector 30. The metal shell 100 can include the metal body 110 and a contact portion 120 extending from the metal body 110. The contact portion 120 can extend from one side of the metal body 110.

[0086] The metal shell 100 can be connected to the connector 30 through the contact portion 120. The contact portion 120 can be formed of a metal material. The contact portion 120 can physically / electrically connect the metal body 110 to the connector 30. The contact portion 120 can be disposed inside the connection member 200. The contact portion 120 can connect the metal body 110 to the connector 30 inside the connection member 200. In an example embodiment of the disclosure, the contact portion 120 can be formed separately from the metal body 110 and then connected. In another example embodiment, the contact portion can be integrally formed with the metal body and then assembled.

[0087] The metal shell 100 can allow a ground (GND) potential to flow by inducing a high-frequency component or a high-voltage surge noise to the metal. In addition, the metal shell 100 enhances impedance characteristics of the cable 20 so as to prevent a high-frequency component or a high-voltage surge noise from flowing.

[0088] The metal body 110 of the metal shell 100 can be disposed at a certain position of the cable 20 so as to be adjusted according to a characteristic of a system or a reduction of a desired frequency band.

[0089] The connector 30 can include a printed circuit board 310 connected to the cable 20 and provided with a ground electrode 311, and a conductive case 330 accommodating the printed circuit board 310.

[0090] The connector 30 can include a printed circuit board 310, a plug 30a coupled to the printed circuit board 310 to connect an external device to the connector 30, and a housing 330 accommodating the printed circuit board 310.

[0091] The printed circuit board 310 can include a lens unit 320 configured to transmit an optical signal from the plurality of optical fibers 22 to the printed circuit board 310. An optical element and a driving integrated circuit (IC) configured to control the optical element can be disposed in the lens unit 320. The optical element can include a vertical cavity surface emitting laser (VCSEL) chip and a photodiode (PD) chip.

[0092] The housing 330 can cover a front surface of the printed circuit board 310. The housing 330 can accommodate the printed circuit board 310.

[0093] The housing 330 can include first housings 331a and 331b in which the printed circuit board 310 is accommodated, and second housings 332a and 332b disposed outside the first housings 331a and 331b and formed of an insulating material. Each of the housings 330 can be disposed in a pair of upper and lower parts configured to be coupled to each other.

[0094] The first housings 331a and 331b can be formed of a material having high electrical conductivity, such as a metal material.

[0095] The second housings 332a and 332b can be in contact with the first housings 331a and 331b. The second housings 332a and 332b can include an insulating material.

[0096] The second housings 332a and 332b can cover the outside of the first housings 331a and 331b, and thus current can not flow to the second housings 332a and 332b even when the current flows through the first housings 331a and 331b. Accordingly, even when a user holds the second housings 332a and 332b, electric shock caused by the current transmitted to the connector 30 through the cable 20 does not occur.

[0097] The printed circuit board 310 disposed in the housing 330 can include a plurality of electrodes 311 connected to the conductors 21 of the cable 20, respectively. One or more of the electrodes 311 can be a power supply electrode. The conductors 21 can be configured to transmit power. The conductors 21 can transmit power to the printed circuit board 310 through the power supply electrode 311.

[0098] The lens unit 320 can be a plurality of lens units connecting the plurality of optical fibers 22 of the cable 20 to the printed circuit board 310 and can be disposed on the printed circuit board 310. The plurality of lens units 320 can include a plurality of jumpers and a plurality of lenses. The plurality of jumpers can be connected to the plurality of optical fibers 22 and used to connect the optical fibers 22 to the printed circuit board 310. The plurality of lens units 320 can be provided with jumpers and lenses corresponding to the plurality of optical fibers 22, respectively, and can transmit optical signals from the printed circuit board 310 to the cable 20.

[0099] The contact portion 120 of the metal shell 100 can be connected to the first housings 331a and 331b. One end of the contact portion 120 of the metal shell 100 can be connected to the metal body 110, and the other end of the contact portion 120 can be connected to the first housings 331a and 331b of the connector 30. The contact portion 120 can be electrically / physically connected to the first housings 331a and 331b. The contact portion 120 can be connected to at least one side of the first housings 331a and 331b. The contact portion 120 can be connected to the printed circuit board 310 through the first housings 331a and 331b. The contact portion 120 can include at least one of a metal tube, a thin metal wire, a metal plate, a metal rod, and a braided wire. The contact portion 120 can be fixed to the metal body 110 and the connector 30 using at least one of soldering 312, soft soldering, and a conductive tape. The contact portion 120 can be fixed to the first housings 331a and 331b of the connector 30 using at least one of soldering 312, soft soldering, and a conductive tape.

[0100] It has been described that the contact portion 120 of the metal shell 100 is a metal rod connecting the metal body 110 to the first housings 331a and 331b as an exemplary embodiment. According to another exemplary embodiment, the contact portion 120 can include at least one of a metal ring, a tube, or a wire, and can include various structures configured to physically / electrically connect the metal body 110 to the connector 30.

[0101] In addition, the contact portion 120 can be adjusted to a desired frequency band by adjusting the number of the metal bodies 110 or the size and shape, such as thickness or length, of the metal body 110.

[0102] Figure 6 FIG. 1 is a schematic diagram illustrating a metal shell of a cable device according to an embodiment, and Figure 7 FIG. 2 is a schematic diagram illustrating a contact portion and a metal shell according to an embodiment. For reference numbers not illustrated, refer to Figures 1 to 5 .

[0103] As Figure 6 and Figure 7As shown, the connecting member 200 of the cable device 10 can connect the cable 20 and the connector 30. The connecting member 200 is configured to allow the cable 20 connected to the connector 30 to be movable to some extent with respect to the connector 30. The connecting member 200 can surround the connection between the cable 20 and the connector 30. The cutout portion 210 can be formed of an insulating material. The connecting member 200 can include a rubber or plastic material. The connecting member 200 can be disposed between the cable 20 and the printed circuit board 310 and can allow the cable 20 therein to be flexible or bendable. The connecting member 200 can include at least one cutout portion 210. The cutout portion 210 of the connecting member 200 can allow a portion of the cable 20 within the connecting member to be flexible or bendable. The cutout portion 210 can extend in a circumferential direction around the connecting member. The cutout portion 210 can include a slit or a hole extending in the circumferential direction of the connecting member 200. The connecting member can include a plurality of cutout portions 210 spaced apart from each other.

[0104] The connecting member 200 can include a first region P1 in which the metal body 110 is disposed and a second region P2 on at least one side of the first region P1 in which the contact portion 120 is disposed.

[0105] The cutout portion 210 can be formed in the second region P2 of the connecting member 200. The cutout portion 210 can include at least one slit 221. A plurality of slits 221 can be spaced apart from each other. The plurality of slits 221 can be disposed at positions not overlapping each other.

[0106] The contact portion 120 of the metal shell 100 can be disposed not to overlap the cutout portion 210 in the second region P2 of the connecting member 200. The contact portion 120 can include at least one of a metal wire, a thin metal, a metal plate, a metal rod, and a braided wire. The contact portion 120 can be disposed at a position not to overlap the cutout portion 210 of the connecting member 200 and thus the contact portion 120 can not be exposed to the outside. Thus, since the contact portion 120 of the metal shell 100 can be disposed not to overlap the cutout portion 210 of the connecting member 200, the EMI reduction performance can be maintained without damaging the appearance.

[0107] Figure 8 and Figure 9 is a schematic view showing a metal shell and an adjusting device according to another embodiment, Figure 10 is a schematic view showing an adjusting device according to another embodiment. For the unillustrated reference numerals, refer to Figures 1 to 5 .

[0108] As shown in Figure 8 , Figure 9 and Figure 10 , the metal shell 300A of the cable device 10A can further include an adjusting device 400A.

[0109] The metal shell 300A can be provided to have different diameters. For example, the metal shell 300A can include a first cylinder 311A, a second cylinder 312A, and a third cylinder 313A having different diameters. The metal shell 300A can include an adjustment device 400A configured to adjust a distance between the first cylinder 311A, the second cylinder 312A, and the third cylinder 313A having different diameters. That is, an overlap between the first cylinder 311A, the second cylinder 312A, and the third cylinder 313A can be adjusted to adjust a total length of the metal shell 300A.

[0110] The first cylinder 311A can have a first diameter d1, the second cylinder 312A can have a second diameter d2, and the third cylinder 313A can have a third diameter d3.

[0111] The first diameter d1 can be smaller than the second diameter d2, and the second diameter d2 can be smaller than the third diameter d3. The second cylinder 312A can be provided at one end of the first cylinder 311A, and the third cylinder 313A can be provided at one end of the second cylinder 312A. The first cylinder 311A can be accommodated inside the second cylinder 312A, and the second cylinder 312A can be accommodated inside the third cylinder 313A to provide a telescopic relationship between the cylinders 311A, 312A, and 313A.

[0112] The adjustment device 400A can be provided in the third cylinder 313A to move the third cylinder 313A in a sliding manner in a longitudinal direction of the cable 20. The adjustment device 400A can include a handle 410A protruding from at least a portion of an outer circumferential surface of the third cylinder 313A. The handle 410A can be integrally formed with the third cylinder 313A.

[0113] Since a user can relatively increase or decrease a distance between the first cylinder 311A, the second cylinder 312A, and the third cylinder 313A by moving the handle 410A of the adjustment device 400A, the user can adjust the cable device 10A to provide electromagnetic compatibility (EMC) noise reduction for different frequency characteristics.

[0114] The adjustment device 400A can further include a guide 420A surrounding the handle 410A. The guide 420A can be formed on at least a portion of the connection member 200.

[0115] The guide portion 420A may include a guide piece 421A formed in the longitudinal direction on the outer circumferential surface of the connection member 200, and a plurality of guide grooves 422Aa, 422Ab, and 422Ac extending from at least a portion of the guide piece 421A. The plurality of guide grooves 422Aa, 422Ab, and 422Ac may include a first guide groove 422Aa formed to extend from one end of the guide piece 421A to one side in the circumferential direction, a second guide groove 422Ab spaced apart from the first guide groove 422Aa and formed to extend from the center of the guide piece 421A to one side in the circumferential direction, and a third guide groove 422Ac spaced apart from the second guide groove 422Ab and formed to extend from the other end of the guide piece 421A to one side in the circumferential direction.

[0116] The handle 410A of the adjustment device 400A can be fixed by at least one of the first to third guide grooves 422Aa to 422Ac of the guide portion 420A. The adjustment device 400A can adjust the size and length of the metal shell 300A according to system characteristics or required bandwidth reduction.

[0117] Figure 11 and Figure 12 Schematic diagram showing a metal shell and an adjustment device according to another embodiment. Figures 1 to 5 .

[0118] like Figure 11 and Figure 12 As shown in FIG, the metal shell 300B of the cable device may include a metal strip 310B formed of a metal material.

[0119] The metal strip 310B may be a plate-shaped strip formed by stretching a metal material. The metal strip 310B may be arranged between the exterior of the cable 20 and the interior of the connecting member 200. The metal strip 310B may be arranged with one end thereof fixed to at least one of the cable 20 or the connecting member 200. The length of the metal strip 310B may vary depending on the number of rotations the metal strip 310B is wrapped around the cable 20. A rotating rod 420B may be provided at the other end of the metal strip 310B. The rotating rod 420B may be configured to change the number of rotations the metal strip 310B is wrapped around the cable 10. A guide 430B for guiding the rotation of the rotating rod 420B may be formed on the connecting member 200.

[0120] The user may adjust the length of the metal shell 300B by rotating the rotating rod 420B along the guide 430B formed on the outer circumferential surface of the connection member 200 , and thus the user may adjust the metal shell 300B to have EMC noise reduction frequency characteristics.

[0121] As is apparent from the above description, EMC noise can be reduced and EMI / ESD shielding performance can be improved without including a separate shielding structure.

[0122] While some embodiments of the present disclosure have been shown and described, it will be understood by those skilled in the art that changes can be made in these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined in the claims and their equivalents.

Claims

1. A cable device comprising: cables, including optical fibres; Connectors, including: a printed circuit board connected to the cable and including a ground electrode; and Conductive shell; a connecting member disposed to surround a connecting portion between the cable and the connector; and A metal shell surrounds a portion of the cable inside the connecting member, wherein the metal shell includes a plurality of cylinders coupled to each other and having different diameters, the plurality of cylinders being configured to be telescopically adjusted.

2. The cable arrangement according to claim 1, wherein The metal shell further comprises: The contact portion is configured to connect the plurality of cylinders to the conductive housing.

3. The cable arrangement according to claim 1, wherein The connecting member is formed of an insulating material.

4. The cable arrangement according to claim 1, wherein The conductive housing is connected to the ground electrode.

5. The cable arrangement according to claim 2, wherein The contact portion is formed of a metal material.

6. The cable arrangement according to claim 2, wherein: The connecting member includes at least one cutout portion, and The contact portion does not overlap with the at least one cutout portion.

7. The cable arrangement according to claim 2, wherein: The contact portion includes at least one of a metal wire, a metal plate, a metal rod, and a braided wire.

8. The cable arrangement according to claim 1, wherein The metal shell further includes an adjustment device, wherein the adjustment device is configured to telescopically adjust the plurality of cylinders.

9. The cable arrangement according to claim 8, wherein The adjustment device includes a handle, wherein the handle is configured to move the plurality of cylinders in a sliding manner to increase or decrease an overlap of the plurality of cylinders.

10. The cable arrangement according to claim 9, wherein The adjustment device further includes a guide portion, wherein the guide portion has a plurality of grooves configured to lock the handle at different positions.

11. The cable arrangement according to claim 1, wherein The metal shell further includes a metal strap, wherein the metal strap is configured to wrap around an exterior of the cable when rotated.

12. The cable arrangement according to claim 11, wherein The length of the metal tape can be changed according to the number of rotations of the metal tape around the cable.

13. The cable arrangement of claim 12, further comprising: A rotating rod is configured to change the number of rotations of the metal belt around the cable.

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