Cable for rotatable plug of data card and data card
A technology of data cards and plugs, applied in the field of wireless terminals, can solve the problems of low low frequency receiving sensitivity of data cards, poor shielding effect, inability to reliably ground conductive cloth, etc., and achieve the effect of improving low frequency receiving sensitivity
Active Publication Date: 2013-01-02
HONOR DEVICE CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to prevent the signal on the USB signal line from electromagnetic interference, there are two key issues in this design: one is how to shield the USB signal line as much as possible, and the other is how to fully connect the metal shell of the USB head to the main board of the data card
[0008] Since the conductive cloth cannot be soldered, the conductive cloth in the prior art cannot be reliably grounded, so the shielding effect on electromagnetic interference is poor, and the low-frequency receiving sensitivity of the data card is low
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] An embodiment of the present invention provides a cable for a rotatable plug of a data card, which includes:
[0028] Wire groups, metal conductors and flexible conductive layers;
[0029] The wire group includes: signal wires and power wires;
[0030] The signal wires in the wire group are wrapped in a flexible conductive layer; the power wires in the wire group are wrapped in a flexible conductive layer or located outside the flexible conductive layer; the flexible conductive layer is electrically connected to a metal conductor; The metal conductors are respectively electrically connected to the metal shell of the rotatable plug and the ground on the main board of the data card, and the metal shell is grounded.
[0031] Wherein, the line set can be a USB line set, specifically including a power line (V+, namely V bus ), the power ground wire (GND), a set of signal wires (D+ and D-), optional, the wire set may not include the power ground wire (GND), but use metal co...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention provides a cable for a rotatable plug of a data card and the data card, wherein the cable for the rotatable plug of the data card comprises a wire group, a metal conductor, a flexible conducting layer, and the wire group comprises a signal wire and a power supply wire; the signal wire of the wire group is wrapped in the flexible conducting layer, and the power supply wire of the wire group is wrapped in the flexible conducting layer or is positioned outside the flexible conducting layer; the flexible conducting layer is electrically connected with the metal conductor; and a metal shell of the rotatable plug and the ground of a motherboard of the data card are respectively and electrically connected with the metal conductor, and the metal shell is grounded. The low-frequency receiving sensitivity of the data card can be improved by using the technical scheme provided in the embodiment of the invention.
Description
technical field [0001] The invention relates to the technical field of wireless terminals, in particular to a cable for a rotatable plug of a data card and a data card. Background technique [0002] With the continuous improvement of people's living standards and the rapid development of mobile communication technology, people have more and more requirements for data cards. The connection mode between the data card and the computer has changed from the initial 64Pin to 34Pin, and now most data cards adopt the high-speed and convenient 4Pin USB interface. The current USB data card has two designs of the USB head, one is a fixed (ie, in-line) USB head, and the other is a rotating (ie, folded) USB head. [0003] Wireless performance is one of the important indicators to measure the performance of a data card. The theoretical transmission rate of the USB 2.0 version is 480Mbps, and the double frequency of this frequency, 960MHz, just falls near the frequency 959.8MHz correspon...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/17H01B7/02G06K19/077
Inventor 徐慧梁兰尧孙树辉屠东兴王定杰雷平
Owner HONOR DEVICE CO LTD