WO2021259156A1 - Ligne de données - Google Patents

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Publication number
WO2021259156A1
WO2021259156A1 PCT/CN2021/100840 CN2021100840W WO2021259156A1 WO 2021259156 A1 WO2021259156 A1 WO 2021259156A1 CN 2021100840 W CN2021100840 W CN 2021100840W WO 2021259156 A1 WO2021259156 A1 WO 2021259156A1
Authority
WO
WIPO (PCT)
Prior art keywords
capacitor
shielding layer
data line
housing
connecting portion
Prior art date
Application number
PCT/CN2021/100840
Other languages
English (en)
Chinese (zh)
Inventor
伦文波
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021259156A1 publication Critical patent/WO2021259156A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members

Definitions

  • This application relates to the field of communication technology, and in particular to a data cable.
  • Radiated emission is a high-frequency signal, which is transmitted in the form of electromagnetic waves at about 150Mhz.
  • the characteristic impedance is discontinuous, resulting in radiated emission (RE). Excessive circumstances.
  • the embodiment of the present application provides a data line to solve the problem of poor reliability of the data line in the prior art.
  • an embodiment of the present application provides a data cable, including:
  • a first interface end where the first interface end includes a housing
  • a second interface end where the second interface end is connected to the first interface end through a cable
  • the cable includes: a shielding layer and a plurality of wires, the shielding layer is wrapped outside the plurality of wires;
  • the shielding layer is connected to the housing through a capacitor, and the shielding layer is grounded.
  • the shielding layer is connected to the housing through a capacitor, and the shielding layer is grounded, so that the shielding layer and the housing are short-circuited together through the capacitor, and the housing is grounded through the capacitor.
  • Figure 1 shows one of the schematic diagrams of the data line
  • Figure 2 shows the second structural diagram of the data line
  • FIG. 3 shows a schematic diagram of the structure of a data line according to an embodiment of the present application
  • FIG. 4 shows a schematic diagram of the connection between the housing and the shielding layer of the embodiment of the present application
  • FIG. 5 shows a schematic diagram of the positions of the first capacitor and the second capacitor in an embodiment of the present application
  • FIG. 6 shows one of the schematic diagrams of the resonance frequency of the embodiment of the present application.
  • FIG. 7 shows the second schematic diagram of the resonance frequency of the embodiment of the present application.
  • FIG. 8 shows a schematic diagram of the internal structure of a data line according to an embodiment of the present application.
  • first interface terminal 2. second interface terminal, 3, cable, 4, first capacitor, 5, second capacitor, 11, housing, 12, circuit board, 31, shielding layer, 111.
  • a data cable structure is provided.
  • the A and B ends of the data cable are connected by multiple wires.
  • the A end can be used to connect to a computer and other equipment, and the B end can be a Type C end, which can be used to connect to a mobile phone.
  • Multiple wires are wound with a shielding layer 31, and the shielding layer 31 is wound and connected with the ground wire.
  • the shell of the Type C port does not contact the shielding layer, that is, the shell is suspended.
  • RE is a high-frequency signal, it is transmitted in the form of electromagnetic waves around 150Mhz, and there is a fault between the Type C shell and the shielding layer, so the reference ground is not continuous, which may cause characteristic impedance Discontinuity, leading to radiation.
  • FIG. 2 another data line structure is provided.
  • the shielding layer 31 is directly DC shorted to the shell of the B end.
  • the other structure is the same as that of FIG. 1, and will not be repeated here.
  • the Type C port shell and the shielding layer 31 are short-circuited by DC, which can solve the problem of radiation emission.
  • the shell is directly grounded, it may cause reliability such as port burn due to the micro short circuit between the shell and the power cord. problem.
  • an embodiment of the present application provides a data cable, including:
  • a second interface end 2 the second interface end 2 is connected to the first interface end 1 through a cable 3;
  • the cable 3 includes: a shielding layer 31 and a plurality of wires, the shielding layer 31 is wrapped outside the plurality of wires; wherein the shielding layer 31 is connected to the housing 11 through a capacitor, and the shielding layer 31 is grounded.
  • the first interface terminal 1 may be a Type C terminal of a data cable, which may be used to connect to a mobile terminal, and the second interface terminal 2 may be used to connect to a terminal such as a computer to realize data transmission between terminals.
  • the shell 11 of the first interface terminal 1 is electrically conductive, and the shell 11 may be a metal shell of the Type C terminal.
  • the first interface terminal 1 and the second interface terminal 2 are connected by a cable 3, and the cable 3 is used to transmit data and includes a shielding layer 31 and a plurality of wires wrapped inside the shielding layer 31, Such as ground wire, power cord, etc.
  • the shielding layer 31 is connected to the housing 11 through a capacitor, so that the shielding layer 31 and the housing 11 are short-circuited together through a capacitor, and the electromagnetic wave of RE can be filtered out by the filtering function of the capacitor;
  • the shielding layer 31 is grounded, so that the housing 11 is grounded through the capacitor, ensuring the continuity of the reference ground and avoiding the discontinuity of the reference ground due to the fault between the shielding layer 31 and the housing 11. Solve the problems of excessive radiation emission and poor reliability.
  • FIG. 3 takes the capacitor including two capacitors as an example.
  • the capacitor may include: at least one of the first capacitor 4 and the second capacitor 5.
  • the shielding layer 31 is connected to the housing 11 through the first capacitor 4, and the capacitance value of the first capacitor may be 4.7 nF;
  • the shielding layer 31 is connected to the housing 11 through the second capacitor 5, and the capacitance value of the second capacitor 5 may be 1 nF;
  • the capacitor includes the first capacitor In the case of a capacitor 4 and the second capacitor 5, the shielding layer 31 is connected to the housing 11 through the first capacitor 4 and the second capacitor 5, respectively.
  • the filter frequency corresponding to the 1 nF capacitor is about 150 MHz.
  • the length of the data line is 1M, which reaches 1/2 wavelength for the frequency of 150Mhz, which meets the optimal radiation condition of the antenna.
  • c is the electromagnetic wave speed
  • f is the frequency, which can be calculated
  • the 150Mhz frequency corresponds to a wavelength of 2M
  • 1/2 wavelength is the optimal radiation condition of the antenna, which is 1M. Therefore, for a 1M data line, the 150Mhz frequency is easier to radiate.
  • the capacitance value of the second capacitor 5 can be set to 1 nF. In this way, the frequency of 150 MHz can be passed smoothly and the RE frequency can be filtered.
  • the filter frequency corresponding to the 4.7 nF capacitor is about 75 MHz.
  • the length of the data line is 1M, and for the frequency of 75Mhz, it reaches 1/4 wavelength, which satisfies the antenna radiation condition.
  • c is the electromagnetic wave speed
  • f is the frequency.
  • the 75Mhz can be calculated
  • the wavelength corresponding to the frequency is 4M, and the antenna can also achieve better radiation effects at 1/4 wavelength, so for 1M data lines, the frequency of 75Mhz is also easy to radiate.
  • the capacitance value of the first capacitor 4 may be set to 4.7 nF. In this way, the 75 MHz frequency can be passed smoothly and the RE frequency can be filtered.
  • the first interface terminal 1 further includes: a circuit board 12, the circuit board 12 is at least partially disposed inside the housing 11; the capacitor is disposed on the circuit board 12.
  • the first capacitor 4 and the second capacitor 5 are both arranged on the circuit board 12.
  • the circuit board 12 may be a printed circuit board.
  • the housing 11 is connected to a capacitor provided on the circuit board 12, and is connected to the shielding layer 31 through the capacitor. Since the shielding layer 31 is grounded, the housing 11 is grounded through the capacitor to realize the The shell is short-circuited with GND through a capacitor, and the shell and the shielding layer are short-connected through a capacitor to ensure the continuity of the reference ground, which can greatly reduce the RE radiation, which not only solves the problem of excessive radiation emission, but also solves the problem of port burn And other reliability issues.
  • the housing 11 is provided with a connecting portion, and the connecting portion is connected to the circuit board 12; the number of the connecting portion is equal to the number of the capacitor.
  • the connecting portion is used to realize the electrical connection between the housing 11 and the circuit board 12.
  • the housing 11 may be a metal housing.
  • the connecting portion may be a connecting structure extending from the housing 11, such as a hook structure. It should be noted that the number of the connection portions is equal to the number of the capacitors, that is, each connection portion is connected to a capacitor correspondingly, so that the housing 11 is connected to the capacitor through the connection portion.
  • the connecting portion includes a first connecting portion 111 and a second connecting portion 112; the first capacitor 4 and the second capacitor 5 are both arranged on the circuit board 12.
  • the first connecting portion 111 is connected to the first end of the first capacitor 4, the second end of the first capacitor 4 is connected to the shielding layer 31, and the second end of the first capacitor is grounded;
  • the second connecting portion 112 is connected to the first end of the second capacitor 5, the second end of the second capacitor 5 is connected to the shielding layer 31, and the second end of the second capacitor is grounded.
  • first connecting portion 111 and one end of the second connecting portion 112 may be soldered on the circuit board 12, and grounded through the first capacitor 4 and the second capacitor 5 on the circuit board 12.
  • the first connecting portion 111 is connected to the first end of the first capacitor 4, and the second end of the first capacitor 4 is connected to the shielding layer 31, wherein the second end of the first capacitor 4 Grounded.
  • the second connecting portion 112 is grounded to the first end of the second capacitor 5, and the second end of the second capacitor 5 is connected to the shielding layer 31, wherein the second end of the second capacitor 5 is Grounded. That is, the housing 11 and the shielding layer 31 are short-connected together through a capacitor, and the housing 11 and GND are short-connected through a capacitor.
  • the housing uses the first connection portion 111 and the second connection portion 112 to be short-circuited with GND through a capacitor, and the housing and the shielding layer are short-circuited through a capacitor to ensure the continuity of the reference ground and enable RE
  • the radiation is greatly reduced, which not only solves the problem of excessive radiation emission, but also solves the reliability problems such as port burning.
  • an accommodating cavity is formed inside the housing 11, and the first connecting portion 111 and the second connecting portion 112 extend toward the accommodating cavity to be connected to the circuit board 12.
  • the first connecting portion 111 and the second connecting portion 112 may be an integral structure with the housing 11 or may be separately provided on the housing 11.
  • the first connecting portion 111 and the second connecting portion 112 can be arranged at any position inside the housing 11, for example: the first connecting portion 111 and the second connecting portion 112 are arranged on the housing 11 Two inner surfaces opposite to each other inside, or the first connecting portion 111 and the second connecting portion 112 are provided on two adjacent inner surfaces of the housing 11.
  • the location of the first connecting portion 111 and the second connecting portion 112 can be set according to electrical connection requirements with other components.
  • the plurality of wires includes a ground wire; the ground wire is electrically connected to the circuit board 12.
  • the end of the shielding layer 31 connected to the first interface terminal 1 is welded to the circuit board 12 and is directly grounded.
  • the first connection part 111 and the second connection part 112 are respectively connected to the shielding layer 31 through a capacitor short-circuiting method, which solves both RE
  • multiple wires such as burning ports can also include: a power line, a first data line, and a second data line; the power line, the ground line, the first data line, and the The second data line is wrapped inside the shielding layer 31.
  • the data lines are: power lines, first data lines, second data lines, and ground lines.
  • a shield layer 31 is wound on the outer layer of the above four sets of lines, and the shield layer 31 is connected to GND. , The housing 11 and the shielding layer 31 are connected through a capacitor.
  • the housing 11 and GND are connected by a combination of 4.7nF+1nF capacitors, where 4.7nF corresponds to a frequency of about 75Mhz, and a 1nF capacitor corresponds to a frequency of about 150Mhz, so that the frequency of about 150Mhz and 75Mhz of RE can pass smoothly, thereby realizing the protection of RE. Filtering.
  • the capacitance value of the first capacitor 4 is 4.7nF, and the resonant frequency when the filter frequency is about 75Mhz is shown in Fig. 6; the capacitance value of the second capacitor 5 is 1nF, and the resonant frequency is about 150Mhz.
  • the frequency is shown in Figure 7.
  • the data line may be as shown in FIG. 8, taking the capacitor including the first capacitor 4 and the second capacitor 5 as an example.
  • the first capacitor 4 and the second capacitor 5 are arranged on the circuit board 12, and the first connecting portion 111 and the second connecting portion 112 extending from the housing 11 are welded to the On the circuit board 12; a plurality of wires in the cable 3 are connected to the circuit board 12.
  • the plurality of wires may include: a power line, a first data line, a second data line, and a ground line.
  • the circuit A plurality of conductive terminals are provided on the board 12, and the plurality of conductive terminals correspond to the plurality of conductive wires in a one-to-one correspondence; for example, the conductive terminals correspond to the power line, the first data line, the second data line, and The grounding line is connected, the shielding layer 31 is wrapped around the power line, the first data line, the second data line, and the grounding line, and the shielding layer 31 is connected to the grounding line to achieve grounding.
  • the housing 11 is shorted to the shielding layer 31 in the cable 3 through the first capacitor 4 and the second capacitor 5 on the circuit board 12, and the housing 11 is grounded through the first capacitor 4 and the second capacitor 5,
  • the shielding layer 31 is welded on the circuit board 12 and is directly grounded.
  • the housing uses the connecting portion and GND to be short-circuited through a capacitor, and the housing and the shielding layer are short-circuited through a capacitor to ensure the continuity of the reference ground, which can greatly reduce the RE radiation, which solves The problem of excessive radiation emission is solved, and reliability problems such as port burnt are solved.
  • the data cable in the embodiments of this application can be applied to electronic equipment, and the electronic equipment can be a mobile phone.
  • the electronic equipment can be a mobile phone.
  • Those skilled in the art can understand that in addition to the mobile phone as a terminal device, it can also be applied to other terminal devices that require data transmission, such as a tablet.
  • Computers, e-book readers, moving Picture Experts Group Audio Layer III (MP3) players, moving Picture Experts Group Audio Layer III (MP3) players, moving Picture Experts Group Audio Layer IV (MP4) players , Laptop portable computers, vehicle-mounted computers, desktop computers, set-top boxes, smart TVs, wearable devices, etc., are all within the protection scope of the embodiments of the present application.

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne une ligne de données, comprenant : une première extrémité d'interface, qui comprend un boîtier ; et une seconde extrémité d'interface, qui est reliée à la première extrémité d'interface au moyen d'un câble. Le câble comprend une couche de blindage et une pluralité de fils, la couche de blindage est enroulée sur l'extérieur de la pluralité de fils, la couche de blindage est reliée au boîtier au moyen d'un condensateur, et la couche de blindage est mise à la terre.
PCT/CN2021/100840 2020-06-23 2021-06-18 Ligne de données WO2021259156A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010582832.4 2020-06-23
CN202010582832.4A CN111740289A (zh) 2020-06-23 2020-06-23 一种数据线

Publications (1)

Publication Number Publication Date
WO2021259156A1 true WO2021259156A1 (fr) 2021-12-30

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Application Number Title Priority Date Filing Date
PCT/CN2021/100840 WO2021259156A1 (fr) 2020-06-23 2021-06-18 Ligne de données

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CN (1) CN111740289A (fr)
WO (1) WO2021259156A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111740289A (zh) * 2020-06-23 2020-10-02 维沃移动通信有限公司 一种数据线
CN113067212B (zh) * 2021-03-30 2023-04-25 维沃移动通信有限公司 数据线及电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002252506A (ja) * 2000-12-22 2002-09-06 Canon Inc ケーブル接続構造及び該ケーブル接続構造を有する電子機器
CN207303598U (zh) * 2017-06-07 2018-05-01 罗丁喆 一种Type-C数据线
CN208111828U (zh) * 2017-12-29 2018-11-16 广东欧珀移动通信有限公司 充电连接装置和充电系统
CN208111827U (zh) * 2017-12-29 2018-11-16 广东欧珀移动通信有限公司 充电连接装置和充电系统
CN111740289A (zh) * 2020-06-23 2020-10-02 维沃移动通信有限公司 一种数据线

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8546688B2 (en) * 2009-04-14 2013-10-01 John Martin Horan High speed data cable with shield connection
CN203014113U (zh) * 2012-12-11 2013-06-19 广东九联科技股份有限公司 一种信号连接线
US11171454B2 (en) * 2017-03-24 2021-11-09 Huawei Technologies Co., Ltd. USB connector with double shield layers
CN108173086B (zh) * 2017-12-21 2020-02-11 Oppo广东移动通信有限公司 数据传输端口、数据传输线及终端设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002252506A (ja) * 2000-12-22 2002-09-06 Canon Inc ケーブル接続構造及び該ケーブル接続構造を有する電子機器
CN207303598U (zh) * 2017-06-07 2018-05-01 罗丁喆 一种Type-C数据线
CN208111828U (zh) * 2017-12-29 2018-11-16 广东欧珀移动通信有限公司 充电连接装置和充电系统
CN208111827U (zh) * 2017-12-29 2018-11-16 广东欧珀移动通信有限公司 充电连接装置和充电系统
CN111740289A (zh) * 2020-06-23 2020-10-02 维沃移动通信有限公司 一种数据线

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