CN204229625U - A kind of USB tests connection wire and USB testing apparatus - Google Patents
A kind of USB tests connection wire and USB testing apparatus Download PDFInfo
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- CN204229625U CN204229625U CN201420621598.1U CN201420621598U CN204229625U CN 204229625 U CN204229625 U CN 204229625U CN 201420621598 U CN201420621598 U CN 201420621598U CN 204229625 U CN204229625 U CN 204229625U
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Abstract
The utility model provides a kind of USB and tests connection wire, comprise VBUS interface and GND interface, also comprise first interface, the second interface, the 3rd interface and the 4th interface, VBUS interface connects first interface and the 4th interface by lead-in wire, GND interface is by lead-in wire connection second interface and the 3rd interface, first interface and the 4th interface form the interface of current return, and the second interface and the 3rd interface form the interface in voltage sample loop.Test loop is divided into current return and voltage sample loop, the two ends of current return connect first interface and the 4th interface respectively, the two ends in voltage sample loop connect the second interface and the 3rd interface respectively, voltage sample impedance loop very large (almost no current), line pressure falls almost can be ignored the impact of voltage tester, the electric current of shunting is very little, also almost can ignore the impact of testing current loop, more satisfactory solves the problem that test lead voltage drop affects test result, the USB output voltage of test gained is accurate, without the need to revising.
Description
Technical field
The utility model relates to USB technical field of measurement and test, particularly relates to a kind of USB and tests connection wire and USB testing apparatus.
Background technology
USB data line is extensively incorporated in the every field of the modern life, no matter is daily life consumption or commercial production every field.
At present on the market for power-supply device or the product (charger such as with USB interface, portable power source etc.) of calibration tape USB output interface, usually all select Universal USB connecting line as test input wire rod, its shortcoming is that the voltage drop testing connecting line in test process is also calculated in test result.Often cause test result lower than actual USB output voltage.Also have some equipment to allow to arrange a compensating parameter to revise test result, but the pressure drop of wire rod with flow through current related also relevant with the quality of wire rod, therefore cannot unify revise.
Utility model content
The purpose of this utility model is to provide a kind of USB to test connection wire and USB testing apparatus, and the USB output voltage of test gained is accurate, without the need to revising.
The utility model is achieved through the following technical solutions:
A kind of USB tests connection wire, comprise VBUS interface and GND interface, also comprise first interface, the second interface, the 3rd interface and the 4th interface, VBUS interface connects first interface and the 4th interface by lead-in wire, GND interface is by lead-in wire connection second interface and the 3rd interface, first interface and the 4th interface form two end interfaces of current return, and the second interface and the 3rd interface form two end interfaces in voltage sample loop.
Preferably, also comprise interface body, interface body is roughly cylindrical, and first interface, the second interface, the 3rd interface and the 4th interface are distributed in interface body.
Preferably, first interface, the second interface, the 3rd interface and the 4th interface are pass interface, and first interface, the second interface, the 3rd interface and the 4th interface extend internally from the end face of interface body.
Preferably, also comprise USB interface, VBUS interface and GND interface are arranged at USB interface, and USB interface is also provided with D+ interface and D-interface.
Preferably, also comprise linear material main body, one end connecting interface body of linear material main body, the other end of linear material main body connects USB interface.
Preferably, VBUS interface and the lead-in wire between first interface and the 4th interface embed linear material main body, and GND interface and the lead-in wire between the second interface and the 3rd interface embed linear material main body.
Preferably, the structure that is formed in one of interface body, USB interface and linear material main body.
Preferably, VBUS interface is by red 18AWG (American wire gauge, American wire gage) lead-in wire connection first interface, VBUS interface is by black 18AWG lead-in wire connection the 4th interface, GND interface is by white 26AWG lead-in wire connection second interface, and GND interface is by green 26AWG lead-in wire connection the 3rd interface.
A kind of USB testing apparatus, comprises current return, voltage sample loop and above-mentioned USB and tests connection wire; First interface is connected the two ends of current return with the 4th interface, and the second interface is connected the two ends in voltage sample loop with the 3rd interface.
Preferably, the aviation socket that USB test connection wire is formed in one turns USB connecting line.
The beneficial effects of the utility model are: a kind of USB tests connection wire, comprise VBUS interface and GND interface, also comprise first interface, the second interface, the 3rd interface and the 4th interface, VBUS interface connects first interface and the 4th interface by lead-in wire, GND interface is by lead-in wire connection second interface and the 3rd interface, first interface and the 4th interface form two end interfaces of current return, and the second interface and the 3rd interface form two end interfaces in voltage sample loop.Test loop is divided into current return and voltage sample loop, the two ends of current return connect first interface and the 4th interface respectively, the two ends in voltage sample loop connect the second interface and the 3rd interface respectively, voltage sample impedance loop very large (almost no current), fall the impact of voltage tester little of almost ignoring at the line pressure in voltage sample loop like this, simultaneously because voltage sample impedance loop is large, the electric current of shunting is also just very little also almost can be ignored the impact of testing current loop, the problem that test lead voltage drop affects test result is solved like this with regard to more satisfactory, the USB output voltage of test gained is accurate, without the need to revising.
Accompanying drawing explanation
In order to clearer, that the utility model embodiment is described effectively technical scheme, the accompanying drawing used required in embodiment is briefly described, self-explantoryly be, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, without the need to pay creative work prerequisite under, other accompanying drawing can also be made according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of USB testing apparatus of the utility model.
Fig. 2 is the structural representation that a kind of USB of the utility model tests connection wire.
Fig. 3 is the vertical view that a kind of USB of the utility model tests the interface body of connection wire.
Fig. 4 is the vertical view that a kind of USB of the utility model tests the USB interface of connection wire.
Fig. 5 is the electrical connection schematic diagram that a kind of USB of the utility model tests connection wire.
In figure:
1-VBUS interface; 2-GND interface; 3-interface body; 4-USB interface; 5-first interface; 6-second interface; 7-the 3rd interface; 8-the 4th interface; 9-linear material main body; 10-current return; 11-voltage sample loop.
Embodiment
The utility model provides a kind of USB testing apparatus, in order to make, those of skill in the art are clearer understands the utility model scheme, and the object enabling the utility model above-mentioned, feature, beneficial effect more understand, understandable, below in conjunction with accompanying drawing 1 ~ 2 and embodiment, the utility model is described in further detail.
A kind of USB tests connection wire, comprise VBUS interface 1 and GND interface 2, also comprise first interface 5, second interface 6, the 3rd interface 7 and the 4th interface 8, VBUS interface 1 connects first interface 5 and the 4th interface 8 by lead-in wire, GND interface 2 is by lead-in wire connection second interface 6 and the 3rd interface 7, first interface 5 and the 4th interface 8 form two end interfaces of current return, and the second interface 6 and the 3rd interface 7 form two end interfaces in voltage sample loop.
Test loop is divided into current return and voltage sample loop, the two ends of current return connect first interface 5 and the 4th interface 8 respectively, the two ends in voltage sample loop connect the second interface 6 and the 3rd interface 7 respectively, voltage sample impedance loop very large (almost no current), fall the impact of voltage tester little of almost ignoring at the line pressure in voltage sample loop like this, simultaneously because voltage sample impedance loop is large, the electric current of shunting is also just very little also almost can be ignored the impact of testing current loop, the problem that test lead voltage drop affects test result is solved like this with regard to more satisfactory, the USB output voltage of test gained is accurate, without the need to revising.
In the present embodiment, also comprise interface body 3, interface body 3 is roughly cylindrical, and first interface 5, second interface 6, the 3rd interface 7 and the 4th interface 8 are distributed in interface body 3.
In the present embodiment, first interface 5, second interface 6, the 3rd interface 7 and the 4th interface 8 are pass interface, and first interface 5, second interface 6, the 3rd interface 7 and the 4th interface 8 extend internally from the end face of interface body 3.
In the present embodiment, also comprise USB interface 4, VBUS interface 1 and GND interface 2 is arranged at USB interface 4, USB interface 4 is also provided with D+ interface and D-interface.
In the present embodiment, also comprise linear material main body 9, one end connecting interface body 3 of linear material main body 9, the other end of linear material main body 9 connects USB interface 4.
In the present embodiment, VBUS interface 1 and the lead-in wire between first interface 5 and the 4th interface 8 embed linear material main body 9, GND interface 2 and the lead-in wire between the second interface 6 and the 3rd interface 7 embeds linear material main body 9.
In the present embodiment, the structure that interface body 3, USB interface 4 and linear material main body 9 are formed in one.
In the present embodiment, VBUS interface 1 connects first interface 5, VBUS interface 1 by red lead wire and connects three interface 7 by white lead-in wire connection second interface 6, GND interface 2 by green pigtail by black lead connection the 4th interface 8, GND interface 2.
The utility model additionally provides a kind of USB testing apparatus.
A kind of USB testing apparatus, comprises current return 10, voltage sample loop 11 and aforementioned USB and tests connection wire; First interface 5 is connected the two ends of current return 10 with the 4th interface 8, and the second interface 6 is connected the two ends in voltage sample loop 11 with the 3rd interface 7.
In the present embodiment, the aviation socket that USB test connection wire is formed in one turns USB connecting line.
Test loop is divided into current return 10 and voltage sample loop 11, the two ends of current return 10 connect first interface 5 and the 4th interface 8 respectively, the two ends in voltage sample loop 11 connect the second interface 6 and the 3rd interface 7 respectively, voltage sample loop 11 impedance very large (almost no current), fall the impact of voltage tester little of almost ignoring at the line pressure in voltage sample loop 11 like this, simultaneously because voltage sample loop 11 impedance is large, the electric current of shunting is also just very little also almost can be ignored the impact of testing current loop, the problem that test lead voltage drop affects test result is solved like this with regard to more satisfactory, the USB output voltage of test gained is accurate, without the need to revising.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (10)
1. a USB tests connection wire, comprise VBUS interface (1) and GND interface (2), it is characterized in that, also comprise first interface (5), second interface (6), 3rd interface (7) and the 4th interface (8), described VBUS interface (1) connects first interface (5) and the 4th interface (8) by lead-in wire, described GND interface (2) is by lead-in wire connection second interface (6) and the 3rd interface (7), described first interface (5) and the 4th interface (8) form two end interfaces of current return, described second interface (6) and the 3rd interface (7) form two end interfaces in voltage sample loop.
2. USB as claimed in claim 1 tests connection wire, it is characterized in that, also comprise interface body (3), described interface body (3) is roughly cylindrical, and described first interface (5), the second interface (6), the 3rd interface (7) and the 4th interface (8) are distributed in described interface body (3).
3. USB as claimed in claim 2 tests connection wire, it is characterized in that, first interface (5), the second interface (6), the 3rd interface (7) and the 4th interface (8) are pass interface, and described first interface (5), the second interface (6), the 3rd interface (7) and the 4th interface (8) extend internally from the end face of described interface body (3).
4. USB as claimed in claim 2 tests connection wire, it is characterized in that, also comprise USB interface (4), described VBUS interface (1) and GND interface (2) are arranged at described USB interface (4), and described USB interface (4) is also provided with D+ interface and D-interface.
5. USB as claimed in claim 4 tests connection wire, it is characterized in that, also comprise linear material main body (9), one end of described linear material main body (9) connects described interface body (3), and the other end of described linear material main body (9) connects described USB interface (4).
6. USB as claimed in claim 5 tests connection wire, it is characterized in that, described VBUS interface (1) and the lead-in wire between first interface (5) and the 4th interface (8) embed described linear material main body (9), and described GND interface (2) and the lead-in wire between the second interface (6) and the 3rd interface (7) embed described linear material main body (9).
7. USB as claimed in claim 5 tests connection wire, it is characterized in that, the structure that described interface body (3), USB interface (4) and linear material main body (9) are formed in one.
8. USB as claimed in claim 1 tests connection wire, it is characterized in that, described VBUS interface (1) connects described first interface (5) by red lead wire, described VBUS interface (1) connects the 4th interface (8) by black lead, described GND interface (2) connects described second interface (6) by white lead-in wire, and described GND interface (2) connects the 3rd interface (7) by green pigtail.
9. a USB testing apparatus, is characterized in that, comprises current return (10), voltage sample loop (11) and the USB described in any one of claim 1 ~ 9 and tests connection wire; Described first interface (5) is connected the two ends of described current return (10) with the 4th interface (8), and described second interface (6) is connected the two ends of described voltage sample loop (11) with the 3rd interface (7).
10. testing apparatus as claimed in claim 9, is characterized in that, the aviation socket that described USB test connection wire is formed in one turns USB connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621598.1U CN204229625U (en) | 2014-10-14 | 2014-10-14 | A kind of USB tests connection wire and USB testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621598.1U CN204229625U (en) | 2014-10-14 | 2014-10-14 | A kind of USB tests connection wire and USB testing apparatus |
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| Publication Number | Publication Date |
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| CN204229625U true CN204229625U (en) | 2015-03-25 |
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| CN201420621598.1U Active CN204229625U (en) | 2014-10-14 | 2014-10-14 | A kind of USB tests connection wire and USB testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667481B (en) * | 2018-06-29 | 2019-08-01 | 群光電能科技股份有限公司 | Transmission cable and power supply apparatus using the same |
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2014
- 2014-10-14 CN CN201420621598.1U patent/CN204229625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667481B (en) * | 2018-06-29 | 2019-08-01 | 群光電能科技股份有限公司 | Transmission cable and power supply apparatus using the same |
| US10483018B1 (en) | 2018-06-29 | 2019-11-19 | Chicony Power Technology Co., Ltd. | Transmission cable and power supply device having transmission cable |
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