CN205282838U - USB -OTG automatic switching connecting wire - Google Patents
USB -OTG automatic switching connecting wire Download PDFInfo
- Publication number
- CN205282838U CN205282838U CN201620028582.9U CN201620028582U CN205282838U CN 205282838 U CN205282838 U CN 205282838U CN 201620028582 U CN201620028582 U CN 201620028582U CN 205282838 U CN205282838 U CN 205282838U
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- pin
- usb
- joint
- microusb
- connects
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Abstract
The utility model provides a USB -OTG automatic switching connecting wire, includes that microUSB connects, a USB connects, the 2nd USB connects and the relay, the 1st pin that microUSB connects and the 1st pin of USB joint and the 1st pin that the 2nd USB connects are connected, and the 2nd pin of microUSB joint is connected with the 2nd pin that the 2nd pin that a USB connects and the 2nd USB connect, and the 3rd pin of the 3rd pin of microUSB joint and the 3rd pin that a USB connects and the 2nd USB joint is connected, the 4th pin that microUSB connects is connected with a normally closed contact of relay, and the 5th pin that microUSB connects is connected with the 2nd normally closed contact of relay, the first control end of relay and the 1st pin that a USB connects are connected, and the 4th pin of the second control end of relay and the 4th pin that a USB connects and the 2nd USB joint is connected, the 2nd normally closed contact of relay is connected with the second control end of relay. The utility model discloses can realize automatic switch -over between USB data line and OTG line.
Description
Technical field
The utility model relates to communication field, is convenient for carrying in particular to one and uses.
Background technology
In prior art, it is very difficult to distinguish USB data line and OTG line, and user is in use, it is necessary to carry USB line and OTG line respectively, it may also be useful to carry all very inconvenient. For this reason, there is a need in the field to provide a kind of easy to carry and use and the function of wire automatically conversion between USB data line and OTG line can be realized according to external equipment.
Practical novel content
The utility model provides the USB-OTG that a kind of structure is simple, cost is low, is convenient for carrying and uses and automatically changes wire.
For solving the problem, as an aspect of the present utility model, it provides a kind of USB-OTG changes wire automatically, comprises microUSB joint, the first USB joint, the 2nd USB joint and rly.; 1st pin of microUSB joint is connected with the 1st pin of the 1st pin of the first USB joint and the 2nd USB joint, 2nd pin of microUSB joint is connected with the 2nd pin of the 2nd pin of the first USB joint and the 2nd USB joint, and the 3rd pin of microUSB joint is connected with the 3rd pin of the 3rd pin of the first USB joint and the 2nd USB joint; 4th pin of microUSB joint is connected with the first normally closed contact of rly., and the 5th pin of microUSB joint is connected with the 2nd normally closed contact of rly.; First control end of rly. is connected with the 1st pin of the first USB joint, and the 2nd control end of rly. is connected with the 4th pin of the 4th pin of the first USB joint and the 2nd USB joint; 2nd normally closed contact of rly. is connected with the 2nd control end of rly..
Preferably, the first USB joint is USB male joint.
Preferably, the 2nd USB joint is USB female joint.
The utility model can realize the automatic switching between USB data line and OTG line by rly., and it is convenient for carrying and uses, and overcomes the problem needing artificial definition of data line in prior art, has the advantages that structure is simple, cost is low.
Accompanying drawing explanation
Fig. 1 schematically shows structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Please refer to Fig. 1, the utility model provides a kind of USB-OTG and automatically changes wire, comprises microUSB joint 1, first USB joint 2, the 2nd USB joint 3 and rly. 4; 1st pin 11 of microUSB joint 1 is connected with the 1st pin 31 of the 1st pin 21 of the first USB joint 2 and the 2nd USB joint 3,2nd pin 12 of microUSB joint 1 is connected with the 2nd pin 32 of the 2nd pin 22 of the first USB joint 2 and the 2nd USB joint 3, and the 3rd pin 13 of microUSB joint 1 is connected with the 3rd pin 33 of the 3rd pin 23 of the first USB joint 2 and the 2nd USB joint 3; 4th pin 14 of microUSB joint 1 is connected with the first normally closed contact of rly. 4, and the 5th pin 15 of microUSB joint 1 is connected with the 2nd normally closed contact of rly. 4; First control end of rly. 4 is connected with the 1st pin of the first USB joint 2, and the 2nd control end of rly. 4 is connected with the 4th pin 34 of the 4th pin 24 of the first USB joint 2 and the 2nd USB joint 3; 2nd normally closed contact of rly. 4 is connected with the 2nd control end of rly. 4. Preferably, the first USB joint 2 is USB male joint. Preferably, the 2nd USB joint 3 is USB female joint.
According to microUSB specification, the 1st pin of microUSB joint 1 be power supply just, the 2nd pin be that data line is negative, the 3rd pin be data line just, the 4th pin for empty, the 5th pin be signal ground wire. According to USB, the 1st pin of the first USB joint and the 2nd USB joint be power supply just, the 2nd pin be that power supply is negative, the 3rd pin be power supply just, the 4th pin be signal ground wire.
In an embodiment, microUSB joint 1 in use with the equipment connection such as mobile phone or IPAD, it is in normally off between first normally closed contact of rly. 4 and the 2nd normally closed contact by default, namely it is connected between the 4th pin of microUSB joint 1 and the 5th pin.
Now, if during by the first USB joint insertion apparatus such as computer, 1st pin of the first USB joint obtains electric, thus it is electric to make rly. obtain, so that become disconnection state by closed state between its first normally closed contact and the 2nd normally closed contact, i.e. open circuit between the 4th pin of microUSB joint 1 and the 5th pin, thus as common USB function, data exchange can be carried out between mobile phone and computer, such as, transmit photo etc.
If during by equipment connections such as the 2nd USB joint and USB flash disk, mouse, keyboard, USB flash disk, printers, now rly. must not electricity, so that still remain on closed state between its first normally closed contact and the 2nd normally closed contact, namely it is connected between the 4th pin of microUSB joint 1 and the 5th pin, thus realizes the function of OTG.
Visible, the utility model can by rly. according to the different automatic switchings realized between USB data line and OTG line of external equipment, it is convenient for carrying and uses, and overcomes the problem needing artificial definition of data line in prior art, has the advantages that structure is simple, cost is low.
Owing to have employed technique scheme, the utility model does not need the order of connection of artificial setting, yet not subset, it may be achieved what data cube computation, data transmission, charging, memory body expanded is dynamically connected certainly.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a USB-OTG changes wire automatically, it is characterised in that, comprise microUSB joint (1), the first USB joint (2), the 2nd USB joint (3) and rly. (4);
1st pin (11) of described microUSB joint (1) is connected with the 1st pin (31) of the 1st pin (21) of described first USB joint (2) and described 2nd USB joint (3), 2nd pin (12) of described microUSB joint (1) is connected with the 2nd pin (32) of the 2nd pin (22) of described first USB joint (2) and described 2nd USB joint (3), 3rd pin (13) of described microUSB joint (1) is connected with the 3rd pin (33) of the 3rd pin (23) of described first USB joint (2) and described 2nd USB joint (3),
4th pin (14) of described microUSB joint (1) is connected with the first normally closed contact of described rly. (4), and the 5th pin (15) of described microUSB joint (1) is connected with the 2nd normally closed contact of described rly. (4);
First control end of described rly. (4) is connected with the 1st pin of described first USB joint (2), and the 2nd control end of described rly. (4) is connected with the 4th pin (24) of the first USB joint (2) and the 4th pin (34) of described 2nd USB joint (3);
2nd normally closed contact of described rly. (4) is connected with the 2nd control end of described rly. (4).
2. USB-OTG according to claim 1 changes wire automatically, it is characterised in that, described first USB joint (2) is USB male joint.
3. USB-OTG according to claim 1 changes wire automatically, it is characterised in that, described 2nd USB joint (3) is USB female joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028582.9U CN205282838U (en) | 2016-01-13 | 2016-01-13 | USB -OTG automatic switching connecting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028582.9U CN205282838U (en) | 2016-01-13 | 2016-01-13 | USB -OTG automatic switching connecting wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282838U true CN205282838U (en) | 2016-06-01 |
Family
ID=56067375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620028582.9U Expired - Fee Related CN205282838U (en) | 2016-01-13 | 2016-01-13 | USB -OTG automatic switching connecting wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515618A (en) * | 2016-10-28 | 2017-03-22 | 芜湖市吉安汽车电子销售有限公司 | Vehicle-mounted DA system interface switching system based on Linux platform |
-
2016
- 2016-01-13 CN CN201620028582.9U patent/CN205282838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515618A (en) * | 2016-10-28 | 2017-03-22 | 芜湖市吉安汽车电子销售有限公司 | Vehicle-mounted DA system interface switching system based on Linux platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20180113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |