CN205790822U

CN205790822U - A kind of charging wire

Info

Publication number: CN205790822U
Application number: CN201620366482.7U
Authority: CN
Inventors: 周涛
Original assignee: Beijing Techshino Technology Co Ltd
Current assignee: Beijing Techshino Technology Co Ltd
Priority date: 2016-04-27
Filing date: 2016-04-27
Publication date: 2016-12-07
Anticipated expiration: 2026-04-27

Abstract

The utility model discloses a kind of charging wire, including: main interface, first from interface, second from interface；The voltage end of main interface passes through resistance eutral grounding, connects the first voltage end from interface and second respectively from the voltage end of interface by diode simultaneously；First from the state end of interface, second between the state end of interface, it is connected in series the first switch and second switch；The voltage end of main interface connects control end and the control end of second switch of the first switch, controls the first switch and the break-make of second switch.By the way, two consumer electronic devices can be charged by this utility model simultaneously, and also can directly use the electronic equipment with OTG function be ID end be pulled low electronic equipment charging.

Description

A kind of charging wire

Technical field

This utility model relates to electronic equipment charging field, particularly relates to a kind of charging wire.

Background technology

Along with the increase of mobile device functionality, power consumption increases the most therewith, and owing to the volume of electronic equipment is limited, thus it is certainly The limited battery capacity of band, and then cause its flying power poor, it is impossible to meet people's daily life, job demand.

At present to charging of mobile devices, mainly by the Micro USB cable shown in Fig. 1-a connect power supply adaptor or Mobile device is charged by person's charger baby, and this cable can only give a charging of mobile devices by an adapter, it is impossible to real Give two or more equipment charges, if need two electronic equipments to be charged, it is necessary to two numbers the most simultaneously simultaneously Just can realize according to line.Therefore when user has two or more mobile device, it usually needs carry multiple data wire, carry to user It is inconvenient to come.

It addition, Fig. 1-b show a kind of common OTG (On-The-Go) cable, this cable one end is Micro-USB type Public mouth, the other end is A type mother's mouth.This cable can make the equipment with OTG function to A type public affairs mouths such as USB flash disk mouse, USB flash disk fans Equipment is powered, but can not realize powering directly to other interface equipments, when needing the equipment of other interfaces is powered, Typically require user to carry the charging wire of relevant device and just can complete power supply, make troubles to user.

Summary of the invention

This utility model provides the charging wire of a kind of simple in construction, cannot realize being two solving a charging wire Electronic equipment charging, the technical problem that the electronic equipment with OTG function can be made again to be the electronic equipment charging that ID end drags down.

For reaching above-mentioned purpose, this utility model provides a kind of charging wire, including: main interface, first from interface, second from Interface；

The voltage end of main interface passes through resistance eutral grounding, simultaneously by diode connect respectively first from the voltage end of interface and Second from the voltage end of interface；

First from the state end of interface, second between the state end of interface, it is connected in series the first switch and second switch；

What the voltage end of main interface connected the first switch controls end and the control end of second switch, controls the first switch and the Two switch on-off.

A technical scheme of the present utility model has the following advantages or beneficial effect:

In a technical scheme of the present utility model, the voltage end of main interface connects first from interface and second respectively from connecing Mouthful voltage end, when main interface switches on power, due to first switch and second switch disconnect, first from interface and second from connecing Mouthful state end keep constant, the charged electrical of described main interface can be streamed to first from interface and/or second from interface, because of Two electronic equipments can be charged by this this utility model simultaneously, and decreasing user needs the quantity of the data wire carried, Decrease the trouble of user, optimize the experience of user；

It addition, this utility model is not when main interface unsettled (i.e. accessing power supply), owing to the first switch and second switch are led Logical, from interface (second from interface) connection, there is the electronic equipment of OTG function when first, first from interface (second from interface) State end is pulled low as discharge condition, and then can be by the first electricity with OTG function connected from interface (second from interface) The charged electrical of subset be streamed to first from interface (second from interface) be connected second from interface (first from interface), for The electronic equipment that the ID end being connected from interface (first from interface) with second has been pulled low is charged, therefore this utility model Can directly use the electronic equipment with OTG function is the electronic equipment charging that ID end has been pulled low, and any one Can connect the mobile device with OTG function from interface, the mobile device that ID end has dragged down connects another one from interface Can complete charging process, need not distinguish discharge end and charging end (i.e. OTG end and non-OTG end), the user that lightened the burden further takes With charger baby and the trouble of additional charge line, optimize the experience of user.

Accompanying drawing explanation

Fig. 1 is existing Micro-USB cable and OTG cable schematic diagram；

Fig. 2 is the circuit diagram of this utility model a kind of charging wire embodiment；

Fig. 3 is the circuit theory diagrams of a kind of specific embodiment one of the present utility model；

Fig. 4 is the circuit theory diagrams of a kind of specific embodiment two of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that this utility model to solve Technical problem, technical scheme and advantage be easier to be readily appreciated by one skilled in the art, thus to protection model of the present utility model Enclose and make apparent clear and definite defining.

This utility model provides a kind of charging wire embodiment, as in figure 2 it is shown, include: main interface J1, first from interface J21, second from interface J22；

The voltage end VBUS of main interface J1 passes through resistance R1 ground connection, connects first respectively from interface by diode D1 simultaneously The voltage end VBUS and second of J21 is from the voltage end VBUS of interface J22；

First from the state end ID of interface J21, second between the state end ID of interface J22, it is connected in series the first switch Q1 With second switch Q2；

What the voltage end VBUS of main interface J1 connected the first switch Q1 controls end and the control end of second switch Q2, controls the One switch Q1 and the break-make of second switch Q2.

Described main interface J1 is used for accessing external power source, such as adapter or PC etc., described first from interface, second from Interface has the electronic equipment of OTG function for accessing and/or does not have the electronic equipment of OTG function, has the electricity of OTG function Subset refer to have can the electronic equipment of external discharging function, such as mobile phone, panel computer etc., and not there is OTG function Electronic equipment refers to the electronic equipment without external discharging function, such as bluetooth earphone, fingerprint instrument etc..Main interface passes through voltage End electric discharge, discharges by voltage end from interface or accesses electric current, and state end is the ID end of interface, when having OTG from interface access The electronic equipment of function, and should should be discharged by voltage end from interface when the ID end of interface is pulled low.

The voltage end VBUS of main interface J1 is by controlling the first switch Q1 and break-make of second switch Q2, it is achieved first from connecing The state end ID and second of mouth J21 is from the break-make of the state end ID of interface J22, and then the charging and discharging state of configuration the corresponding interface, When described first switchs Q1 and second switch Q2 disconnection, then realize main interface simultaneously to from the charging of interface；When described first During switch Q1 and second switch Q2 conducting, then realize there is the electronic equipment of OTG function to another from seam ID from seam The electronic equipment charging that end has been pulled low.

As it is shown on figure 3, be the circuit theory diagrams of a kind of specific embodiment one of the present utility model.

In this specific embodiment one, described first switch Q1 and second switch Q2 is p-type metal-oxide-semiconductor, wherein the first switch The control end controlling end and second switch Q2 of Q1 is grid, and the source electrode of the first switch Q1 and the source electrode of second switch Q2 connect respectively Connect first from the state end ID and second of interface J21 from the state end ID of interface J22, the drain electrode of the first switch Q1 and second switch The drain electrode of Q2 connects.

Described first switch Q1 and second switch Q2 is encapsulated in described main interface JI.Main interface is specially standard USB-A Type public affairs mouth, additionally, main interface can also be other USB Type public affairs mouths, such as USB-B type public affairs mouth, Mini-USB-A type public affairs mouth, permissible Needs according to reality application are to formulate different size main interface J1.It is specially miniature public mouth, the electronics of current main flow from interface Equipment is all using miniature public mouth as data exchange and the interface mode of charging, and the application of miniature public mouth can make the body of mobile device Amass and realize miniaturization.Described miniature public mouth type is Lighting joint (Fructus Mali pumilae equipment), Mini USB joint or Micro Any one in the miniature public mouth type such as USB joint.

When described main interface J1 connection adaptor or other power supplys (such as computer USB socket), the most described main interface J1 makees For discharge equipment, described first connects the electronic equipment needing to be charged, i.e. institute from interface J21 and/or second from interface J22 State first from interface J21 and/or second from interface J22 as charger；It addition, (i.e. do not connect when described main interface J1 is unsettled Enter power supply), when first has OTG function from the electronic equipment that interface (second from interface) connects, can be by this electronic equipment Charged electrical be streamed to first from interface (second from interface) be connected second from interface (first from interface), for second The electronic equipment that the ID end connected from interface (first from interface) has been pulled low is charged.

The application scenarios one of a this utility model specific embodiment one be given below:

After described main interface connection adaptor or other power supplys, the voltage end VBUS of main interface is connected on+5V power supply, The described control end (grid) of the first switch Q1 and the control end (grid) of second switch Q2 are pulled to+5V, now, and the first switch Q1 and second switch Q2 is off, so first from the state end (ID end) and second of interface J21 from the shape of interface J22 State end (ID end) separated, makes the first state end (ID end) from interface J21 and second from the state end (ID end) of interface J22 Keep original state.When only first connects mobile device from interface J21, and such as Bluetooth fingerprint, second is unsettled from interface J22 Time (being not connected with any mobile device), the path that source current is then formed from interface J21 by main interface J1 and first is to first The mobile device connected from interface J21 is charged；When only second connects mobile device from interface J22, such as bluetooth fingerprint Instrument, time first unsettled from interface J21 (being not connected with any mobile device), source current then passes through main interface J1 and second from interface The mobile device that the path that J22 is formed is connected from interface J22 second is charged；When first is mobile from interface J21 connection Equipment, such as Bluetooth fingerprint, second connects other mobile devices (such as equipment such as mobile phone/panel computer/PDA, also from interface J22 Can be Bluetooth fingerprint) time, the path that source current is then formed from interface J21 by main interface J1 and first to first from connecing The mobile device that mouth J21 is connected is charged, and meanwhile, source current also can be by main interface J1 and second from interface J22 shape The mobile device that the path become is connected from interface J22 second is charged.In other words, as long as main interface J1 connects power supply Time, source current just can be set by the movement that main interface J1 is connected from interface J22 from interface J21 and/or second first For being charged, first from interface J21 and/or second not impact between the mobile device that interface J22 is connected.

When main interface J1 of the present utility model accesses external power source, the first switch Q1 and second switch Q2 is in disconnection, the One from the state end (ID end) of interface, second keep original state from the state end (ID end) of interface, can be by described main interface The charged electrical of J1 is streamed to first from interface J21 and/or second from interface J22, is charged.Therefore this utility model is permissible Being charged two consumer electronic devices, decreasing user needs the quantity of the data wire carried, and decreases user's simultaneously Trouble, optimizes the experience of user.

The application scenarios two of a this utility model specific embodiment one be given below:

Described main interface J1 unsettled (i.e. not accessing power supply), described first from interface J21 connect bluetooth fingerprint with or ID Other electronic equipments of having dragged down of end, described second connects from interface J22 and to have the mobile phone of OTG function or other have The electronic equipment of OTG function, owing to described main interface J1 is unsettled, the voltage end VBUS of described main interface J1 passes through pull down resistor R1 Being pulled down to low level, now, the first switch Q1 and second switch Q2 level are pulled low (i.e. two p-type metal-oxide-semiconductor grids drag down), the One switch Q1 and second switch Q2 is in the conduction state, and then second be pulled low by high level from the ID end of interface J22, second from The power supply of the electronic equipment output+5V with OTG function connected on interface J22, such that it is able to connect from interface J21 first The mobile device connect is charged.Same, described main interface J1 unsettled (i.e. not accessing power supply), described second from interface J22 Connect bluetooth fingerprint with or other mobile devices of having dragged down of ID end, described second connects from interface J21 and to have OTG function Mobile phone or other there is the mobile device of OTG function, owing to described main interface J1 is unsettled, the voltage end of described main interface J1 VBUS is pulled down to low level by pull down resistor R1, and now, the first switch Q1 and second switch Q2 level are pulled low (i.e. two P Type metal-oxide-semiconductor grid drags down), first switch Q1 and second switch Q2 in the conduction state, and then first from the ID end of interface J21 by High level is pulled low, the power supply of the first mobile device output+5V with OTG function connected from interface J21, such that it is able to Second electronic equipment connected from interface J22 is charged.In other words, as long as main interface J1 is being not connected with the situation of power supply Under, possess the electronic equipment of OTG function, just fill to the electronic equipment that the ID ends such as Bluetooth fingerprint have been pulled low Electricity, and any one can connect the electronic equipment with OTG function from interface, and the electronic equipment that ID end has dragged down connects Another one can complete charging process from interface, need not distinguish discharge end and charging end (i.e. OTG end and non-OTG end), enter one Step reduces identification discharge end and the trouble of charging end during user uses.

As shown in Figure 4, for the circuit theory diagrams of a kind of specific embodiment two of the present utility model, the present embodiment is with above-mentioned The difference of embodiment one is that the package position of described first switch Q1 and second switch Q2 also includes: such as Fig. 4-a and 4-b institute Showing, the first switch Q1 and second switch Q2 is mutually encapsulated into first from interface J21 or second (not shown) in interface J22, or Person first switchs Q1, second switch Q2 is individually enclosed in first from interface J21, second in interface J22.

By above-described embodiment, two consumer electronic devices can be charged by this utility model simultaneously, and this reality Can also directly to use the electronic equipment that can provide charging current (i.e. having the mobile device of OTG function) be ID end with novel The electronic equipment charging being pulled low, and any one can connect from interface and can provide the mobile device of electric current (i.e. having the mobile device of OTG function), the mobile device that ID end has dragged down connects another one can complete charging from interface Process, need not distinguish discharge end and charging end (i.e. OTG end and non-OTG end), on the one hand decreases the data that user needs to carry The quantity of line, the user that on the other hand lightened the burden carries charger baby and the trouble of additional charge line, complex optimum Consumer's Experience.

The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of without departing from principle described in the utility model, it is also possible to make some improvements and modifications, these improve Also protection domain of the present utility model is should be regarded as with retouching.

Claims

1. a charging wire, it is characterised in that including: main interface, first from interface, second from interface；

The voltage end of main interface passes through resistance eutral grounding, connects the first voltage end from interface and second respectively by diode simultaneously From the voltage end of interface；

The voltage end of main interface connects control end and the control end of second switch of the first switch, controls the first switch and second and opens The break-make closed.

Charging wire the most according to claim 1, it is characterised in that described first switch and second switch are p-type metal-oxide-semiconductor, The control end controlling end and second switch of the first switch is grid, and the source electrode of the first switch and the source electrode of second switch connect respectively Connect the first state end from interface and second to connect from the state end of interface, the drain electrode of the first switch and the drain electrode of second switch.

Charging wire the most according to claim 1 and 2, it is characterised in that described main interface is standard USB-A type public affairs mouth.

Charging wire the most according to claim 3, it is characterised in that described first is miniature public affairs from interface and second from interface Mouthful.

Charging wire the most according to claim 4, it is characterised in that described miniature public mouth is Lighting joint, Mini USB joint or Micro USB joint.

Charging wire the most according to claim 3, it is characterised in that described first switch and second switch are encapsulated in main interface In.

Charging wire the most according to claim 4, it is characterised in that described first switch and second switch be encapsulated in first from Interface or second is in interface, or described first switch and second switch are individually enclosed in first from interface and second from interface In.