CN206353652U - USB transmission line, mobile terminal - Google Patents
USB transmission line, mobile terminal Download PDFInfo
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- CN206353652U CN206353652U CN201621172822.9U CN201621172822U CN206353652U CN 206353652 U CN206353652 U CN 206353652U CN 201621172822 U CN201621172822 U CN 201621172822U CN 206353652 U CN206353652 U CN 206353652U
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Abstract
The utility model discloses a kind of USB transmission line, including the cable of the first plug, the second plug of insertion charger and connection first plug and the second plug that insert mobile terminal, it is characterized in that, first plug has at least two power pins, at least two grounding pins, multiple data signal pins and an identified pins, wherein the identified pins are concatenated being grounded after a resistance.The utility model is the identification that USB transmission line can be achieved without extra chip.
Description
Technical field
The utility model is related to connector technique field, more particularly to a kind of USB transmission line, mobile terminal method.
Background technology
Nowadays, electronic technology is fast-developing, and smart mobile phone, tablet personal computer, digital camera, multimedia player etc. are portable
The function of equipment becomes more to enrich, and is brought great convenience to life and communication.And constantly gushing with portable set
It is existing, USB interface with its transmission speed it is fast, easy to use, support hot plug, connect the advantage such as flexible, independently-powered and also obtain
Greatly popularization.Outside being carried out data transmission using USB interface, carrying out charging to the lithium battery used in portable set is also
The focus of current USB interface application.
Fig. 1 show a kind of schematic diagram of USB connector of prior art, and USB plug 100, which has, includes power pins
101st, data signal pin 102, data signal pin 103, ID pins 104 and grounding pin for recognizing main frame or peripheral hardware
105 this 5 pins, correspond to 5 terminals of USB socket 110 respectively.
With the raising of portable set performance, the power needed for its quickly charging battery is also in increase.However, traditional
USB connector can only charge circuit be charged all the way by a power path and a grounded circuit formation, is limited to
Heat up limitation under the structure limitation of USB connector and large current charge, and charging current is extremely difficult to more than 3A.
The problem of to solve current limit, the mode of improved 7pin connectors is proposed in the prior art, traditional
A pair of positive-negative power pins are added again on the outside of 5pin interfaces, such positive-negative power respectively there are 2 pairs of pin powereds, to realize that USB is passed
Defeated line large current charge.However, in order that charger can recognize whether USB transmission line can support large current charge, corresponding
A chip must be increased on transmission line to be dedicated as filling data wire detection soon, versatility and compatibility are poor.
Utility model content
Main purpose of the present utility model is to overcome the defect of prior art to be charged there is provided a kind of USB transmission line and USB
Method, to improve the problem of existing USB transmission line charging rate is slow, versatility is not good.
To reach above-mentioned purpose, a kind of USB transmission line of the utility model offer, including the first of insertion mobile terminal are slotting
The cable of head, the second plug of insertion charger and connection first plug and the second plug.First plug has
At least two power pins, at least two grounding pins, multiple data signal pins and an identified pins；Wherein described mark
Know pin to be concatenated being grounded after a resistance, when first plug inserts the mobile terminal, the mobile terminal passes through detection
The magnitude of voltage of the identified pins enters corresponding charge mode.
Preferably, the pin of the centre of first plug five is followed successively by the power pins, data-signal described in a pair
Pin, the identified pins, the grounding pin.
Preferably, the quantity of the resistance of the series resistance of the identified pins and the power pins and grounding pin has
Corresponding relation.
Preferably, first plug also includes the communications pins for meeting USB PD agreements.
According to another aspect of the present utility model there is provided a kind of mobile terminal, it includes：USB interface, for inserting such as
First plug of USB transmission line described in claim 1, it includes one-to-one with each pin of first plug
Multiple terminals；ADC test sides, the magnitude of voltage for detecting identified pins in described USB transmission line；Control end, according to detection
As a result corresponding charge mode is entered.
Preferably, first plug also includes the communications pins for meeting USB PD agreements, and second plug includes electricity
Source signal pin, data-signal pin and the communication pins for meeting USB PD agreements；The control end is drawn by the communication
Pin and communication pins are with the charger communication to control the voltage and current of charging.
Preferably, the pin of the centre of first plug five is followed successively by the power pins, data-signal described in a pair
Pin, the identified pins, the grounding pin；The pin of centre five of the USB interface is followed successively by power pin, a logarithm
It is believed that number pin, identification pin and ground connection pin.
Preferably, the quantity of the resistance of the series resistance of the identified pins and the power pins and grounding pin has
Corresponding relation.
Compared to prior art, USB transmission line of the present utility model is by identified pins series connection grounding resistance, being not required to
Want to can be achieved in the case of extra chips the identification of USB transmission line type and corresponding charging modes, it is ensured that charging safety.In addition,
USB interface in mobile device of the present utility model also being capable of compatible 5pin micro USB transmission lines of the prior art.
Brief description of the drawings
Fig. 1 show the schematic diagram of the USB connector of prior art；
Fig. 2 show the schematic diagram of the USB transmission line of the embodiment of the utility model one；
Fig. 3 show the pin schematic diagram of the plug of USB transmission line first of the embodiment of the utility model one；
Fig. 4 show the block diagram of the mobile terminal of the embodiment of the utility model one.
Embodiment
To make content of the present utility model more clear understandable, below in conjunction with Figure of description, to of the present utility model interior
Appearance is described further.Certain the utility model is not limited to the specific embodiment, known to those skilled in the art
General replacement be also covered by protection domain of the present utility model.
Fig. 2 is referred to, the USB transmission line of the present embodiment includes the first plug 1 of insertion mobile terminal, inserts charger
The cable 3 of second plug 2 and the first plug of connection and the second plug.Mobile terminal in this specification includes such as portable
Formula phone, smart mobile phone, notebook computer, digital broadcast terminal, personal digital assistant, portable media player, navigation
Mobile terminal of system etc., the utility model is not any limitation as.
As shown in figure 3, the first plug 1 include at least two power pins VBUS, it is at least two grounding pin GND, multiple
Data signal pin D+, D- and an identified pins ID, wherein identified pins ID are concatenated being grounded after a resistance R.Compared to
Existing 5pin USB transmission line, the utility model adds at least one power pins and a grounding lead at the first plug 1
Pin, consequently, it is possible to which when being charged using USB transmission line, at least two charge circuits can be formed, so as to support high current to fill
Electricity.For identification large current charge, the first plug of USB transmission line also add an identified pins ID.With existing OTG data wires
Unlike, identified pins ID is not to be directly grounded, but is grounded after series resistance R.Thus, when the first plug 1 is inserted
Mobile terminal can recognize whether USB transmission line supports high current by detecting identified pins ID magnitude of voltage during mobile terminal
Charging, and accordingly enter charge mode.Specifically, refer to Fig. 4, mobile terminal include USB interface 41, bleeder circuit 42,
ADC test sides 43 and control end 44.Wherein, USB interface 41 includes the one-to-one multiple ends of each pin with the first plug
Son, mark terminal corresponding with identified pins ID is connected with the dividing point of bleeder circuit 42.ADC test sides also with dividing point phase
Even, the level value for the detection dividing point after the first plug inserts USB interface 41, that is to say the magnitude of voltage of identified pins.Control
End 44 processed calculates series resistance R value by the magnitude of voltage of identified pins and enters corresponding charge mode.Due to common number
It is hanging according to line identified pins, therefore ADC test sides can't detect the magnitude of voltage of identified pins, control end 44 will not be recognized
Data wire is filled soon for high current, is still charged with normal charging mode, and such as charging current is 1A；If ADC test sides are detected
Magnitude of voltage and control end to identified pins according to testing result calculate divider resistance value, then control end 44 will be recognized
USB transmission line is that high current fills data wire soon, will be with large current charge pattern charging (such as charging current is equal to greatly 3A).Preferably
Ground, the resistance of the series resistance of identified pins can have corresponding relation with the quantity of power pins and grounding pin.For example, for
USB transmission line with 2 power pins and 2 grounding pins, the resistance of series resistance is R1；For drawing with 3 power supplys
The USB transmission line of pin and 3 grounding pins, the resistance of series resistance is R2.Thus, control end is according to the detections of ADC test sides
As a result divider resistance value is cleared out, and enters the fast mold filling formula charging of corresponding high current.When the divider resistance value calculated is R1
When, (such as 3A) is charged with the first electric current；When the divider resistance value calculated is R2, (such as 4A) is charged with the second electric current.
In a preferred embodiment of the present utility model, the first plug 1 also includes communications pins, and the communications pins are to meet
The CC pins of Type C interface USB PD agreements.Second plug of corresponding USB transmission line includes the CC for meeting USB PD agreements
Communication pins.In charging process, the control end 43 of mobile terminal by communications pins and communication pins and charger communication with
Control the voltage and current of charging.
Tables 1 and 2 is respectively each functional pin definition of the plug of USB transmission line first and each work(of the second plug of the present embodiment
Can pin definition.
Table 1
Table 2
It can be seen from table 1 and Fig. 3, the pin of the centre of the first plug five is followed successively by power pins VBUS in the present embodiment,
A pair of data signal pins D+, D-, identified pins ID and grounding pin GND.So that correspondingly, mobile terminal USB interface
Middle five pins are followed successively by power pin, a pair of data-signal pins, identification pin and ground connection pin.Due to mobile terminal
The pin of centre five of USB interface is corresponded with the pin of generic USB transmission line, and it can also be inserted with the USB of prior art
Head is compatible, and application is wider.
It should be noted that profile, envelope of the utility model to USB transmission line plug/mobile terminal USB interface (socket)
Dress is not limited, and interface size is not limited, and can be standard USB plug or socket or Micro USB plugs or socket etc., right
Its material type used is not limited, its electric parameter, meets the basic electric requirement standard of industry.
In summary, the utility model is not by identified pins one grounding resistance of series connection, needing the feelings of extra chips
The identification of USB transmission line type and corresponding charging modes can be achieved under condition, it is ensured that charging safety.
Although the utility model is disclosed as above with preferred embodiment, right many embodiments are only for the purposes of explanation
Citing, is not limited to the utility model, those skilled in the art is not departing from the utility model spirit and scope
On the premise of can make some changes and retouching, the protection domain that the utility model is advocated should be to be described in claims
It is accurate.
Claims (8)
1. a kind of USB transmission line, includes the first plug, the second plug of insertion charger and the connection of insertion mobile terminal
The cable of first plug and the second plug, it is characterised in that first plug has at least two power pins, at least
Two grounding pins, multiple data signal pins and an identified pins；Wherein described identified pins are concatenated after a resistance
Ground connection, when first plug inserts the mobile terminal, the mobile terminal is by detecting the magnitudes of voltage of the identified pins
Into corresponding charge mode.
2. USB transmission line according to claim 1, it is characterised in that the pin of centre five of first plug is successively
For the power pins, data signal pin described in a pair, the identified pins, the grounding pin.
3. USB transmission line according to claim 1, it is characterised in that the resistance of the series resistance of the identified pins with
The power pins and the quantity of grounding pin have corresponding relation.
4. USB transmission line according to claim 1, it is characterised in that first plug also includes meeting USB PD associations
The communications pins of view.
5. a kind of mobile terminal, it is characterised in that including：
USB interface, first plug for inserting USB transmission line as claimed in claim 1, it includes and described first
The one-to-one multiple terminals of each pin of plug；
ADC test sides, the magnitude of voltage for detecting identified pins in described USB transmission line；
Control end, enters corresponding charge mode according to testing result.
6. mobile terminal according to claim 5, it is characterised in that first plug also includes meeting USB PD agreements
, second plug includes power supply signal pin, data-signal pin and the communication pins for meeting USB PD agreements；It is described
Control end is by the communications pins and communication pins with the charger communication to control the voltage and current of charging.
7. mobile terminal according to claim 5, it is characterised in that the pin of centre five of first plug is followed successively by
The power pins, data signal pin described in a pair, the identified pins, the grounding pin；The centre of the USB interface
Five pins are followed successively by power pin, a pair of data-signal pins, identification pin and ground connection pin.
8. mobile terminal according to claim 5, it is characterised in that the resistance of the series resistance of the identified pins and institute
Stating the quantity of power pins and grounding pin has corresponding relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172822.9U CN206353652U (en) | 2016-11-02 | 2016-11-02 | USB transmission line, mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172822.9U CN206353652U (en) | 2016-11-02 | 2016-11-02 | USB transmission line, mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206353652U true CN206353652U (en) | 2017-07-25 |
Family
ID=59346690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621172822.9U Active CN206353652U (en) | 2016-11-02 | 2016-11-02 | USB transmission line, mobile terminal |
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| Country | Link |
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| CN (1) | CN206353652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374309A (en) * | 2016-11-02 | 2017-02-01 | 上海传英信息技术有限公司 | USB transmission line, mobile terminal and USB charging method |
| CN108695935A (en) * | 2018-06-06 | 2018-10-23 | Oppo（重庆）智能科技有限公司 | The electronic equipment of charging management method, device, medium and application the method |
| CN110190641A (en) * | 2019-04-29 | 2019-08-30 | 维沃移动通信有限公司 | Charging control circuit, terminal device and data line |
| CN111162593A (en) * | 2019-06-04 | 2020-05-15 | 深圳传音控股股份有限公司 | Charging control method, intelligent terminal, charging system and readable storage medium |
-
2016
- 2016-11-02 CN CN201621172822.9U patent/CN206353652U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374309A (en) * | 2016-11-02 | 2017-02-01 | 上海传英信息技术有限公司 | USB transmission line, mobile terminal and USB charging method |
| CN106374309B (en) * | 2016-11-02 | 2020-12-11 | 上海传英信息技术有限公司 | USB transmission line, mobile terminal and USB charging method |
| CN108695935A (en) * | 2018-06-06 | 2018-10-23 | Oppo（重庆）智能科技有限公司 | The electronic equipment of charging management method, device, medium and application the method |
| CN110190641A (en) * | 2019-04-29 | 2019-08-30 | 维沃移动通信有限公司 | Charging control circuit, terminal device and data line |
| CN111162593A (en) * | 2019-06-04 | 2020-05-15 | 深圳传音控股股份有限公司 | Charging control method, intelligent terminal, charging system and readable storage medium |
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