CN201122770Y - Multiplexing USB interface and data cable with the same - Google Patents

Abstract

The utility model provides a diplex USB interface and a data line with the diplex USB interface, which is suitable for the equipment transmission field. Through a USB plug and a USB socket which are integrated on the diplex USB interface simultaneously and a change-over switch used for switching the work of the USB plug and the USB socket, the packing volume of the USB data line is reduced, thus the appearance is artistic, the operation is easy, and the practicability is strong.

Description

The data wire of a kind of multiplexing USB interface and band multiplexing USB interface

Technical field

The utility model belongs to the device transmission field, relates in particular to the data wire of a kind of multiplexing USB interface and band multiplexing USB interface.

Background technology

Along with the personal digital assistant (personal digital assistant, PDA), cell phone, consumption electronic products, as digital camera, the popularizing of printer etc., main frame causes people's extensive concern with the high speed data transfer between the equipment with equipment and equipment.USB 2.0 (universalserial bus, USB2.0) standard is one of main standard that is used for above-mentioned transmission, but this standard only can be finished main frame and data transfer between devices, and can not solve the equipment and the data transfer between devices of people's active demand.USB plug and play (USB on-the-go, USB OTG) is the complementary agreement of USB2.0 standard, protocol modification the pinout of original USB interface, the equipment that makes both can be done main equipment, also can make slave unit, finished data transfer between devices.Based on the original usb function of usb compatible that meets USB OTG agreement of this design of protocol, and added landmark identification (Identification, ID) pin that is used to indicate main equipment and slave unit on this basis.Equipment with USB interface of supporting USB OTG agreement connect PC (PersonalComputer, PC), during promptly as slave unit, the ID pin is unsettled; Equipment with USB interface of supporting USB OTG agreement connects miscellaneous equipment, and promptly as main equipment, miscellaneous equipment is during as slave unit, ID pin ground connection.

The usb data line that Fig. 1 shows the support USB OTG agreement that prior art provides connects the connected mode of USB device and PC or miscellaneous equipment.This data wire one end links to each other with the USB pin that meets USB OTG agreement on the USB device, and the other end is three trouble formula USB interface, draws a standard USB male and a standard USB female seat respectively by the legacy data line.Diverter switch on the control USB device works the USB male of usb data line or USB female seat.When the USB male worked, USB device was carried out data communication by the usb data line with the main equipment that is connected as slave unit; When the USB female seat worked, USB device was carried out data communication by the usb data line with the slave unit or the PC that are connected as main equipment.This usb data wire wrapping volume that has three trouble formula USB interface is big, not attractive in appearance.

The utility model content

The data wire that the purpose of the utility model embodiment is a kind of multiplexing USB interface is provided and has the multiplexing USB interface is intended to solve big, the attractive in appearance inadequately problem of available data wire wrapping volume.

The utility model embodiment is achieved in that a kind of multiplexing USB interface, comprises male and female seat simultaneously, and is provided with one and is used to switch the diverter switch of male work or female work.

Among the embodiment of the present utility model, the multiplexing USB interface is simultaneously integrated male and female seat, and a switching switch is set on USB interface.When USB device during as main equipment, diverter switch makes female seat work; When USB device during as slave unit, diverter switch makes male work.Packaging volume is little, and is attractive in appearance, easy operating and practical.

Description of drawings

Fig. 1 is the connected mode that the usb data line that provides of prior art connects USB device and PC or miscellaneous equipment;

Fig. 2 is the connected mode that the data wire of the band multiplexing USB interface that provides of the utility model connects USB device and PC or miscellaneous equipment;

Fig. 3 is the circuit diagram that the usb data line of the band multiplexing USB interface that provides of the utility model connects USB device and PC or miscellaneous equipment;

Fig. 4 is the circuit diagram that the usb data line of the band multiplexing USB interface that provides of the utility model connects mobile phone and PC or miscellaneous equipment;

Fig. 5 is the multiplexing USB interface that provides of the utility model and the stereogram that has the data wire of multiplexing USB interface.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model is used to make the commutation circuit of USB device as main equipment or slave unit by integrated in the inside of multiplexing USB interface, and USB male and USB female seat be integrated on the multiplexing USB interface, make the packaging volume of usb data line greatly reduce, more both artistic and practical.

Multiplexing USB interface that the utility model embodiment is provided and the data wire that has the multiplexing USB interface are applicable to the USB device of supporting USB OTG agreement.

Fig. 2 shows the connected mode of the data wire of the band multiplexing USB interface that the utility model provides with PC or miscellaneous equipment.

Transmission line one end of usb data line 22 links to each other with the USB pin in the USB device 21 211.This connection can be by realizing transmission line one end of usb data line 22 with the welding of USB pin, also can on USB device, be provided with the interface male or the female seat of USB pin, female seat or the male that matches in the transmission line one end setting of usb data line 22 simultaneously realizes by both butt joint.The transmission line other end of usb data line 22 is a multiplexing USB interface 221.This interface comprises diverter switch 2211, an end of diverter switch 2211 and transmission line welding, and the other end links to each other with standard USB male 2212 each pin with standard USB female seat 2213 by hardware circuit; Standard USB male 2212, standard USB female seat 2213, standard USB male 2212 connects the USB female seat of main equipment 23, and standard USB female seat 2213 connects the USB male of slave unit 24.

The usb data line that Fig. 3 shows the band multiplexing USB interface that the utility model provides connects the circuit diagram of USB device and PC or miscellaneous equipment.

USB device 31 is for supporting the USB device of USB OTG agreement, and USB device comprises the D+ pin at least, and D-pin, D+ pin and D-pin are used for USB device 31 and carry out exchanges data with institute's connection device or PC; The ID pin is used to indicate USB device as main equipment or slave unit, and USB device 31 is during as slave unit, and the ID pin is unsettled, and USB device 31 is during as main equipment, ID pin ground connection; The VBUS power pins is used to provide the operating current of slave unit USB interface.One end of the data wire of band multiplexing USB interface links to each other with USB device 31, this connection can be by realizing usb data line one end with each pin welding of the USB on the USB device 31, also can on USB device, be provided with the male or the female seat of USB pin, female seat or the male that matches in the one end setting of usb data line during use docked both simultaneously.The D+ pin of USB device 31, D-pin, ID pin, VBUS pin are connected by the single-ended contact of the four blade commutator in the diverter switch 32 in the multiplexing USB interface of usb data line and the usb data line other end respectively, switch the usb data line by selection both-end contact and are connected with 33 connections of USB male or with USB female seat 34.When USB device 31 is connected with USB male 33, diverter switch 32 makes the D+ pin of the USB interface of USB device 31 link to each other with the D+ pin of USB male 33, and the D-pin links to each other with the D-pin of USB male 33, the ID pin is unsettled, and the VBUS pin links to each other with the VBUS pin of USB male 33; When USB device 31 is connected with USB female seat 34, diverter switch 32, the D+ pin of the USB interface of USB device 31 is linked to each other with the D+ pin of USB female seat 34, the D-pin links to each other with the D-pin of USB female seat 34, the ID pin links to each other with the GND pin of USB female seat 34 and USB male 33, and the VBUS pin links to each other with the VBUS pin of USB female seat 34.The GND pin of USB male 33 and USB female seat 34 all links to each other with a total earth connection.

As an embodiment of the present utility model, when USB device 31 is connected on the PC, one end of the usb data line of band multiplexing USB interface links to each other with USB device 31, the USB male 33 of multiplexing USB interface links to each other with PC, switch the diverter switch on the multiplexing USB interface, the usb data line is connected with USB male 33, and USB device 31 is as slave unit; When USB device 31 is connected on the miscellaneous equipment, one end of the usb data line of band multiplexing USB interface links to each other with USB device 31, the USB female seat 34 of multiplexing USB interface links to each other with miscellaneous equipment, and the diverter switch on the switching multiplexing USB interface, the usb data line is connected with USB female seat 34, and USB device 31 is as main equipment.

As an embodiment of the present utility model, when USB device 31 is mobile phone, as shown in Figure 4,, when mobile phone 41 connects PC as slave unit, require PC simultaneously to mobile phone 41 chargings according to existing mobile phone standard.Therefore the USB interface that is positioned on the mobile phone 41 also comprises a VCHG pin, and the VCHG pin is the pin of the charging chip in the mobile phone 41, and this pin is also together received the VBUS pin of USB male 43 with VBUS pin short circuit.Make USB male 43 or 44 effects of USB female seat by the diverter switch of switching on the multiplexing USB interface 42 equally, its pin connected mode such as preceding does not repeat them here.When mobile phone 41 connected PC, mobile phone 41 was as slave unit, and diverter switch 42 makes 43 effects of USB male, and PC is mobile phone 41 chargings by the VCHG pin.

The stereogram of the data wire of multiplexing USB interface that Fig. 5 provides for the utility model and band multiplexing USB interface.Wherein 51 is the male of multiplexing USB interface, and 52 is the female seat of multiplexing USB interface, and 53 is transmission line.Transmission line 53 1 ends are connected with the multiplexing USB interface, transmission line 53 other ends are connected with the USB pin of USB device, this connection can realize by the USB pin welding with USB device, also can on USB device, be provided with the interface male or the female seat of USB pin, female seat or male that while matches in the one end setting of usb data line are by both butt joint realizations.

The utility model is integrated in the multiplexing USB interface to be used to make the commutation circuit of USB device as main equipment or slave unit, and USB male and USB female seat be integrated on the multiplexing USB interface, come selection equipment as main equipment or slave unit by the diverter switch of switching on the multiplexing USB interface during use, make the packaging volume of usb data line greatly reduce, more both artistic and practical, and it is easy to operate, practical.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (6)

1, a kind of multiplexing USB interface is characterized in that, the diverter switch that comprises male and female seat and be used to select male work or female seat work.

2, interface as claimed in claim 1 is characterized in that, described male or female seat pin meet the USB standard pin.

3, a kind of data wire with the multiplexing USB interface, comprise transmission line, transmission line one end is connected to the USB pin of USB device by welding manner, it is characterized in that, described data wire also comprises the multiplexing USB interface, the diverter switch that this multiplexing USB interface comprises male and female seat and is used to select male work or female seat work.

4, data wire as claimed in claim 3 is characterized in that, described USB pin comprises at least:

Finish the D+ pin of USB device, the D-pin with the transfer of data of institute's connection device or PC;

The sign USB device is as the ID pin of main equipment or slave unit;

The VBUS pin of the operating current of slave unit USB pin is provided.

5, a kind of data wire with the multiplexing USB interface, comprise transmission line, transmission line one end is connected to the USB interface that has the USB pin of USB device by interface mode, it is characterized in that, described data wire also comprises the multiplexing USB interface, the diverter switch that described multiplexing USB interface comprises male and female seat and is used to select male work or female seat work.

6, data wire as claimed in claim 5 is characterized in that, described USB pin and interface comprise at least:

Finish the D+ pin of USB device, the D-pin with the transfer of data of institute's connection device or PC;

The sign USB device is as the ID pin of main equipment or slave unit;

The VBUS pin of the operating current of slave unit USB pin is provided.

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