CN206163868U - Full signal switching device of USB - Google Patents

Abstract

The utility model relates to a USB full-signal switching device, which includes a circuit board and a USB Type-C female seat installed on the circuit board, the circuit board has a mounting end and a plugging end, and the surface of the mounting end is arranged A number of metal welding sheets are arranged, and a number of metal contact sheets are respectively arranged on the upper and lower surfaces of the plug-in end, which are aligned with the welding sheets and contact sheets used to transmit high-speed data signals transmitted in differential form and low-speed data signals transmitted in differential form The copper skin is hollowed out to reduce the mutual inductance between the soldering piece and the contact piece and the reference ground, and enhance the self-inductance (inductive reactance) of the transmission line, thereby increasing the pull-up impedance to match the characteristic impedance.

Description

USB full signal switching devices

Technical field

The utility model is related to a kind of USB full signals switching device, more particularly to a kind of with USB Type-C connectors USB full signal switching devices.

Background technology

USB Type-c interfaces are with the positive anti-plug of the support of its uniqueness, and up to 10GB signal transmission rates, and less Volume, becomes the first-selection of mobile phone of new generation and computer, with USB Type-C TO USB Type-C transmission cables day by day into Ripe, various equipment increasingly increase for the demand of USB Type-c female seat internal forwarding lines, based on this market demand, it is necessary to set A internal forwarding plate for meeting the requirement of USB Type-C consortium specifications of meter（USB Type-C signals are transferred to by main control chip Shell female seat）.

Utility model content

The purpose of this utility model there are provided a kind of with the USB full signal switching devices for improving impedance matching.

To realize object defined above, the utility model is adopted the following technical scheme that：A kind of USB full signals switching device, its bag A circuit board and the USB Type-C female seats being installed on circuit board are included, the USB Type-C female seats include insulating base frame, set The metal shell of some conducting terminals and coated insulation pedestal on insulating base frame, the metal shell has spliced eye, institute The end for stating conducting terminal extends into spliced eye, and insulating base frame is extended in another end, the circuit board have installation end and Inserted terminal, the installation end surfaces are placed with some metal welding sheets, weld together with conducting terminal, the inserted terminal it is upper Lower surface is placed with respectively some metal contact chips, and the welding sheet and contact chip are by the connecting line that is integrated in inside circuit board Road links together, and the circuit board includes six layers for being laminated from top to bottom successively：The first to layer 6, difference form transmission High-speed data signal, the low speed data signal of difference form transmission, common mode auxiliary control signal and common mode auxiliary data signal cloth It is placed in ground floor and layer 6；Copper sheet, power supply signal and E-MAK chip power supply voltage signals are disposed with the second layer and layer 5 Be arranged in third layer and the 4th layer, with for transmit difference form transmission high-speed data signal and difference form transmission low speed The welding sheet of data-signal and the copper sheet of contact chip alignment are hollowed out.

Used as further improvement of the utility model, the installation end is oppositely arranged on the two ends of circuit board with inserted terminal.

Used as further improvement of the utility model, the installation end may be located at the same side of circuit board with inserted terminal.

Used as further improvement of the utility model, the installation end may be located at the not homonymy of circuit board with inserted terminal.

On the utility model USB full signal switching device circuit boards with for transmit difference form transmission high-speed data Signal and difference form transmission low speed data signal welding sheet and contact chip alignment copper sheet be hollowed out, reduce welding sheet and Mutual inductance between contact chip and reference ground, strengthens the self-induction of transmission line（Induction reactance）, so as to increase draw high impedance be allowed to and characteristic resistance It is anti-to match.

Description of the drawings

Fig. 1 is the schematic perspective view of the utility model USB full signal switching devices.

Fig. 2 is the three-dimensional exploded view of the utility model USB full signal switching devices.

Fig. 3 is the partial sectional schematic view of the utility model USB full signal switching device circuit board inserted terminals.

Specific embodiment

Refer to shown in Fig. 1 to Fig. 2, the utility model USB full signals switching device 10 includes a circuit board 11 and welding USB Type-C female seats 12 on circuit board 11.USB Type-C female seats 12 are comprising insulating base frame 121, located at insulating base frame The metal shell 123 of some conducting terminals 122 and coated insulation pedestal 121 on 121.Metal shell 123 have supply USB Type-C males（It is not shown）Spliced eye 124, an end of conducting terminal 122 extends into spliced eye 124, and another end extends Go out insulating base frame 121.

Circuit board 11 has relative installation end 111 and inserted terminal 112, and the surface of installation end 111 is placed with some metal weldings Contact pin 113, welds together with conducting terminal 122.The upper and lower surface of inserted terminal 112 is placed with respectively some metal contact chips 114, when using, inserted terminal 112 is used for plug and play, is plugged in butt connector（It is not shown）It is interior so that contact chip 114 with it is right Connecting connector is in electrical contact.Welding sheet 113 and contact chip 114 are by the connection line that is integrated in inside circuit board 11（It is not shown） Link together, realize electrically conducting, welding sheet 113 is more than the width of connection line with the width of contact chip 114, reduces resistance It is anti-.In other embodiments, installation end 111 and inserted terminal 112 can also be located at the same side of circuit board 11 or not homonymy.

USB Type-C full signal versions, need signal to be processed to include：The high-speed data signal of difference form transmission： TX1、RX1、TX2、RX2；The low speed data signal of difference form transmission：D+/D-；Common mode auxiliary control signal：CC1；Common mode is auxiliary Help data-signal：SBU1&SBU2；Power supply signal：Vbus、GND；And E-MAK chip power supply voltage signals：Vconn（CC2）.

Refer to shown in Fig. 3, circuit board 11 includes six layers for being laminated from top to bottom successively：The first to layer 6 1101 ~ 1106.Difference form transmission high-speed data signal, difference form transmission low speed data signal, common mode auxiliary control signal and Common mode auxiliary data signal is arranged in ground floor 1101 and layer 6 1106；Copper is disposed with the second layer 1102 and layer 5 1105 Skin, to signal shielding, power supply signal and E-MAK chip power supply voltage signals are arranged in third layer 1103 and the 4th layer 1104. With for transmit difference form transmission high-speed data signal and difference form transmission low speed data signal welding sheet 113 and The copper sheet of the alignment of contact chip 114 is hollowed out, and reduces welding sheet 113 and the mutual inductance between contact chip 114 and reference ground, strengthens transmission The self-induction of line（Induction reactance）, draw high impedance and be allowed to match with characteristic impedance so as to increase.

Although being example purpose, preferred embodiment of the present utility model, the common skill of this area are had been disclosed for Art personnel by, it is realized that disclosed in without departing from by appending claims scope and spirit of the present utility model situation Under, various improvement, increase and replacement are possible.

Claims (4)

1. A USB full-signal transfer device, which includes a circuit board and a USB Type-C female seat installed on the circuit board, and the USB Type-C female seat includes an insulating seat body, a socket located on the insulating seat body A plurality of conductive terminals and a metal shell covering the insulating base, the metal shell has a plug hole, one end of the conductive terminal extends into the plug hole, and the other end extends out of the insulating base, characterized in that: The circuit board has a mounting end and a plug-in end. A plurality of metal welding sheets are arranged on the surface of the mounting end, and are welded together with the conductive terminals. A plurality of metal contact sheets are respectively arranged on the upper and lower surfaces of the plug-in end. It is connected with the contact piece through the connecting line integrated in the circuit board. The circuit board includes six layers stacked from top to bottom: the first to sixth layers, high-speed data signals transmitted in differential form, and high-speed data signals transmitted in differential form. Low-speed data signals, common-mode auxiliary control signals and common-mode auxiliary data signals are arranged on the first and sixth layers; copper sheets are arranged on the second and fifth layers, and power signals and E-MAK chip power supply voltage signals are arranged on On the third and fourth layers, the copper skins aligned with the solder pads and contact pads used to transmit the high-speed data signals transmitted in the differential form and the low-speed data signals transmitted in the differential form are hollowed out. 2 . The USB full-signal conversion device according to claim 1 , wherein the installation end and the insertion end are oppositely arranged at two ends of the circuit board. 3 . 3. The USB full-signal conversion device according to claim 1, characterized in that: the installation end and the insertion end can be located on the same side of the circuit board. 4. The USB full-signal conversion device according to claim 1, wherein the installation end and the insertion end can be located on different sides of the circuit board.