CN205880039U - Pressure drop detecting system of USB data line - Google Patents
Pressure drop detecting system of USB data line Download PDFInfo
- Publication number
- CN205880039U CN205880039U CN201620743623.2U CN201620743623U CN205880039U CN 205880039 U CN205880039 U CN 205880039U CN 201620743623 U CN201620743623 U CN 201620743623U CN 205880039 U CN205880039 U CN 205880039U
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- data line
- usb data
- indicating member
- current
- pressure drop
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Abstract
The utility model belongs to the technical field of the circuit detects, a pressure drop detecting system of USB data line is provided. The utility model discloses an adopt including a voltage detector, the 2nd voltage detector and current controlling means's pressure drop detecting system of USB data line, it shows the voltage of waiting to detect the USB joint of USB data line to detect through a voltage detector, and detect the voltage that the micro USB joint of USB data line was waited to detect in demonstration through the 2nd voltage detector, make the voltage that USB that the user can the direct read USB data line connects and the voltage of micro USB joint, and do the poor pressure drop that can obtain the USB data line with two voltages, convenient operation and measurement process are simple, and simultaneously, the electric current of USB data line of flowing through can be controlled through current controlling means, the easily pressure drop measuring of big USB data line in batches.
Description
Technical field
This utility model belongs to electric circuit inspection technical field, particularly relates to the pressure drop detection system of a kind of USB data line.
Background technology
In prior art, the electronic equipment such as mobile phone, panel computer being connected to power supply adaptor by USB data line it is
The electronic equipment such as mobile phone, panel computer charging time, due to the existence of USB data line internal resistance, cause from power supply adaptor input to
The voltage of mobile phone has certain loss, if the voltage loss of USB data line is more than 0.5V, is substandard product, therefore, is going out
Before factory, the most all the pressure drop of USB data line can be measured.
The method of the pressure drop of traditional measurement USB data line is: first allows by a fixed current in USB data line, then uses
Circuit tester measures the pressure drop on the electrode line of USB data line and the pressure drop in negative line respectively, and two pressure drop sums are whole
The pressure drop of USB data line.
But, owing to the pin of the micro USB joint of USB data line is provided in housings, therefore, measuring
During the pressure drop of USB data line, need supply pin and the lower margin of micro USB joint to be extracted by an adaptor, ability
Measured by the test pencil of circuit tester, such inconvenient operation, and need the pressure measuring on the electrode line of USB data line respectively
Pressure drop in fall and negative line, measures process cumbersome, and, when the pressure drop of different USB data line is measured, need
Electric current is provided, therefore when needing the pressure drop of mass detection USB data line, it may appear that be difficult to by different current sources
The problem of operation.
In summary, prior art exists when USB data line is carried out drop measurement that operation easier is big, measurement process is numerous
Problem that is trivial and that be not easy to mass detection.
Utility model content
The purpose of this utility model is to provide the pressure drop detection system of a kind of USB data line, it is intended to solve prior art
When USB data line is carried out drop measurement, the operation easier of existence is big, measurement process is loaded down with trivial details and is not easy to mass detection
Problem.
This utility model is achieved in that the pressure drop detection system of a kind of USB data line, including the electricity being connected with power supply
Source adapter, described pressure drop detection system also includes the first voltage detector, the second voltage detector and current control device, institute
The shell stating current control device is provided with micro USB interface and voltage detecting interface；
The outfan of described first voltage detector and described power supply adaptor and the USB joint of USB data line to be detected
Connecting, described current control device is to be detected with described respectively by described micro USB interface and described voltage detecting interface
Micro USB joint and described second voltage detector of USB data line connect；
The electric current flowing through described USB data line to be detected is controlled by described current control device, described first voltage
Detector detects and shows the voltage of USB joint of described USB data line to be detected, and described second voltage detector detects and shows
Show the voltage of the micro USB joint of described USB data line to be detected.
This utility model includes the first voltage detector, the second voltage detector and current control device by employing
The pressure drop detection system of USB data line, detects and shows the USB joint of USB data line to be detected by the first voltage detector
Voltage, and detected and show the voltage of micro USB joint of USB data line to be detected by the second voltage detector, make
User can directly read the voltage of USB joint and the voltage of micro USB joint of USB data line, and by two voltages
Carry out making difference and i.e. can get the pressure drop of USB data line, easy to operate and the process of measurement is simple, meanwhile, flow through the electricity of USB data line
Stream can be controlled by current control device, it is easy to the voltage drop detection of USB data line in high volume.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure drop detection system of the USB data line that this utility model embodiment provides；
Fig. 2 is the modular structure schematic diagram of the current control device that this utility model embodiment provides；
Fig. 3 is the electrical block diagram of the current control device that this utility model embodiment provides；
Fig. 4 is the electrical block diagram of the current control device that another embodiment of this utility model provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
By employing, this utility model embodiment includes that the first voltage detector, the second voltage detector and electric current control dress
The pressure drop detection system of the USB data line put, detects and shows the USB of USB data line to be detected by the first voltage detector
The voltage of joint, and detected and show the electricity of micro USB joint of USB data line to be detected by the second voltage detector
Pressure so that user can directly read voltage and the voltage of micro USB joint of the USB joint of USB data line, and by two
Voltage carries out making difference and i.e. can get the pressure drop of USB data line, easy to operate and the process of measurement is simple, meanwhile, flows through USB data line
Electric current can be controlled by current control device, it is easy to the voltage drop detection of USB data line in high volume.
Fig. 1 shows the structure of the pressure drop detection system of the USB data line that this utility model embodiment provides, for the ease of
Illustrating, illustrate only the part relevant to this utility model embodiment, details are as follows:
The pressure drop detection system of a kind of USB data line, including the voltage adapter 5 being connected with power supply 6, described voltage drop detection
System also includes the first voltage detector the 3, second voltage detector 4 and current control device 1, shell of current control device 1
It is provided with micro usb 11 and voltage detecting interface 10.
First voltage detector 3 connects with the outfan of power supply adaptor 5 and the USB joint 21 of USB data line to be detected 2
Connect, current control device 1 by micro usb 11 and voltage detecting interface 10 respectively with USB data line 2 to be detected
Micro USB joint 22 and the second voltage detector 4 connect.
The electric current flowing through USB data line 2 to be detected is controlled by current control device 1, and the first voltage detector 3 detects
And showing the voltage of the USB joint 21 of USB data line 2 to be detected, the second voltage detector 4 detects and shows USB number to be detected
Voltage according to the micro USB joint 22 of line 2.The difference of the voltage of USB joint 21 and the voltage of micro USB joint 22 is
The pressure drop of USB data line to be detected.
In this utility model embodiment, the first voltage detector 3 and the second voltage detector 4 are equipped with USB joint,
USB interface and display screen, the first voltage detector 3 and the second voltage detector 4 can use existing USB voltage detector.
During actually detected, by the USB interface pair of the USB joint of the first voltage detector 3 Yu power supply adaptor 5
Connect, the USB joint 21 of USB data line 2 to be detected is docked with the USB interface of the first voltage detector 3, by USB number to be detected
Dock with the micro usb 11 of current control device 1 according to the micro USB joint 21 of line 2, by the second voltage detector 4
USB joint dock with the voltage detecting interface of current control device 1, so, just can directly pass through the first voltage detector 4
With the voltage of the USB joint 21 that the second voltage detector 4 reads USB data line 2 to be detected respectively and micro USB joint 22
Voltage, the difference of two voltages is the pressure drop of USB data line to be detected.
As this utility model one embodiment, current control device 1 also includes current control circuit 12.
Fig. 2 shows the modular structure of the current control device that this utility model embodiment provides, for convenience of description, only
Showing the part relevant to this utility model embodiment, details are as follows:
As in figure 2 it is shown, the current input terminal of current control circuit 12 connects supply pin VCC and the electricity of micro usb 11
The supply pin VCHG of pressure detection interface 10, the current output terminal of current control circuit 12 connects the lower margin of micro usb 11
The lower margin GND2 of GND1 and voltage detecting interface 10.
Fig. 3 shows the circuit structure of the current control device that this utility model embodiment provides, for convenience of description, only
Showing the part relevant to this utility model embodiment, details are as follows:
As this utility model one embodiment, current control circuit 12 include select switch the 120, first load blocks 121,
Second load blocks 122 and the 3rd load blocks 123.
Select the current input terminal that fixing end a is current control circuit 12 of switch 120, select the first of switch 120 to live
Moved end b, the second movable end c and the 3rd movable end d connect the input of the first load blocks 121, the second load blocks 122 respectively
Input and the input of the 3rd load blocks 123, the outfan of the first load blocks 121, the output of the second load blocks 122
The outfan of end and the 3rd load blocks 123 connects the current output terminal as current control circuit 12 altogether.
In this utility model embodiment, the first load blocks the 121, second load blocks 122 and the 3rd load blocks 123
Load different, during actually detected, different load moulds can be connected by switching selection switch 120
Block, flows through the electric current of USB data line 2 to be detected, and then the measurement that realization is to the pressure drop of different USB data line with regulation.
As this utility model one embodiment, the first load blocks 121 includes the first current-limiting resistance R1, the first load resistance
R11 and the first indicating member 1210.First end of the first current-limiting resistance R1 and first end of the first load resistance R11 connect conduct altogether
The input of the first load blocks 121, the hot end of second termination first indicating member 1210 of the first current-limiting resistance R1, the
It is defeated that the cold end of one indicating member 1210 and second end of the first load resistance R11 connect as the first load blocks 121 altogether
Go out end.
As this utility model one embodiment, the second load blocks 122 includes the second current-limiting resistance R2, the second load resistance
R21 and the first indicating member 1220.First end of the second current-limiting resistance R2 and first end of the second load resistance R21 connect conduct altogether
The input of the second load blocks 122, the hot end of second termination first indicating member 1220 of the second current-limiting resistance R2, the
It is defeated that the cold end of one indicating member 1220 and second end of the second load resistance R22 connect as the second load blocks 122 altogether
Go out end.
As this utility model one embodiment, the 3rd load blocks 123 includes the 3rd current-limiting resistance R3, the 3rd load resistance
R31 and the 3rd indicating member 1230.First end of the 3rd current-limiting resistance R3 and first end of the 3rd load resistance R31 connect conduct altogether
The input of the 3rd load blocks 123, the hot end of second termination the 3rd indicating member 1230 of the 3rd current-limiting resistance R3, the
It is defeated that the cold end of three indicating members 1230 and second end of the 3rd load resistance R31 connect as the 3rd load blocks 123 altogether
Go out end.
In this utility model embodiment, the first current-limiting resistance R1, the second current-limiting resistance R2 and the 3rd current-limiting resistance R3 are equal
For conventional, electric-resistance, and resistance is the most identical, and the first load resistance R11, the second load resistance R21 and the 3rd load resistance R31 are
Cement resistor, and resistance is different, specifically can be set according to practical situation.
As this utility model one embodiment, the first indicating member 1210 is the first light emitting diode D1, the first luminescence two
The anode of pole pipe D1 and negative electrode are respectively hot end and the cold end of the first indicating member 1210.
As this utility model one embodiment, the first indicating member 1220 is the second light emitting diode D2, the second luminescence two
The anode of pole pipe D2 and negative electrode are respectively hot end and the cold end of the first indicating member 1220.
As this utility model one embodiment, the 3rd indicating member 1230 is the 3rd light emitting diode D3, the 3rd luminescence two
The anode of pole pipe D3 and negative electrode are respectively hot end and the cold end of the 3rd indicating member 1230.
In this utility model embodiment, the first light emitting diode D1, the second light emitting diode D2 and the 3rd light-emitting diodes
The color of pipe D3 is different, different to represent the current value flowing through USB data line.Such as, the first light emitting diode D1,
The color of the second light emitting diode D2 and the 3rd light emitting diode D3 is respectively yellow, blueness and purple, when being switched by selection
During 120 connection the first load blocks 121, the first light emitting diode D1 shows yellow, represents that the current value flowing through USB data line is
First current value；When by selecting switch 120 connection the second load blocks 122, the second light emitting diode D2 display blueness, table
Show that the current value flowing through USB data line is the second current value；When by selecting switch 120 connection three load blocks 123, the
Three light emitting diode D3 show purple, represent that the current value flowing through USB data line is the 3rd current value.
In this utility model embodiment, can be arranged at selecting switch 120 on the shell of current control device 1, with
Be convenient for people to by selecting switch 120 to connect different load blocks, accordingly, it is also possible to by the first light emitting diode D1,
Second light emitting diode D2 and the 3rd light emitting diode D3 is arranged on the shell of current control device 1, to be used to refer to difference
Load blocks be switched on.
Fig. 4 shows the circuit structure of the current control device that another embodiment of this utility model provides, for the ease of saying
Bright, illustrate only the part relevant to this utility model embodiment, details are as follows:
As another embodiment of this utility model, the first indicating member 1210 is the first galvanometer A1, the first galvanometer A1
Hot end and cold end be respectively hot end and the cold end of the first indicating member 1210.
As another embodiment of this utility model, the first indicating member 1220 is the second galvanometer A2, the second galvanometer A2
Hot end and cold end be respectively hot end and the cold end of the first indicating member 1220.
As another embodiment of this utility model, the 3rd indicating member 1230 is the 3rd galvanometer A3, the 3rd galvanometer A3
Hot end and cold end be respectively hot end and the cold end of the 3rd indicating member 1230.
As this utility model one embodiment, current control circuit 12 is arranged in the shell of current control device 1.
In this utility model embodiment, owing to the load in current control circuit 12 in test process is generated heat tighter
Weight, therefore, is arranged on current control circuit 12 in the shell of current control device 1, so can avoid grasping in test process
The safety problem making contacing by mistake of personnel and cause.
By employing, this utility model embodiment includes that the first voltage detector, the second voltage detector and electric current control dress
The pressure drop detection system of the USB data line put, detects and shows the USB of USB data line to be detected by the first voltage detector
The voltage of joint, and detected and show the electricity of micro USB joint of USB data line to be detected by the second voltage detector
Pressure so that user can directly read voltage and the voltage of micro USB joint of the USB joint of USB data line, and by two
Voltage carries out making difference and i.e. can get the pressure drop of USB data line, easy to operate and the process of measurement is simple, meanwhile, flows through USB data line
Electric current can be controlled by current control device, it is easy to the voltage drop detection of USB data line in high volume.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (10)
1. a pressure drop detection system for USB data line, including the power supply adaptor being connected with power supply, it is characterised in that described
Pressure drop detection system also includes the first voltage detector, the second voltage detector and current control device, and described electric current controls dress
The shell put is provided with micro USB interface and voltage detecting interface；
Described first voltage detector is connected with the USB joint of the outfan of described power supply adaptor and USB data line to be detected,
Described current control device by described micro USB interface and described voltage detecting interface respectively with described USB number to be detected
Micro USB joint and described second voltage detector according to line connect；
The electric current flowing through described USB data line to be detected is controlled by described current control device, described first voltage detecting
Device detects and shows the voltage of USB joint of described USB data line to be detected, and described second voltage detector detects and shows institute
State the voltage of the micro USB joint of USB data line to be detected.
2. the pressure drop detection system of USB data line as claimed in claim 1, it is characterised in that described current control device is also
Including current control circuit；
The current input terminal of described current control circuit connects the supply pin of described micro USB interface and described voltage detecting interface
Supply pin, the current output terminal of described current control circuit connects the lower margin of described micro USB interface and described voltage detecting
The lower margin of interface.
3. the pressure drop detection system of USB data line as claimed in claim 2, it is characterised in that described current control circuit bag
Include selection switch, the first load blocks, the second load blocks and the 3rd load blocks；
The described current input terminal that fixing end is described current control circuit selecting switch, the first of described selection switch is movable
End, the second movable end and the 3rd movable end connect respectively the input of described first load blocks, described second load blocks defeated
Enter end and the input of described 3rd load blocks, the outfan of described first load blocks, described second load blocks defeated
The outfan going out end and described 3rd load blocks connects the current output terminal as described current control circuit altogether.
4. the pressure drop detection system of USB data line as claimed in claim 3, it is characterised in that described first load blocks bag
Include the first current-limiting resistance, the first load resistance and the first indicating member；
First end of described first current-limiting resistance and the first end of described first load resistance connect altogether as described first load mould
The input of block, the hot end of the second described first indicating member of termination of described first current-limiting resistance, described first instruction
The cold end of unit connects the outfan as described first load blocks altogether with the second end of described first load resistance.
5. the pressure drop detection system of USB data line as claimed in claim 3, it is characterised in that described second load blocks bag
Include the second current-limiting resistance, the second load resistance and the second indicating member；
First end of described second current-limiting resistance and the first end of described second load resistance connect altogether as described second load mould
The input of block, the hot end of the second described second indicating member of termination of described second current-limiting resistance, described second instruction
The cold end of unit connects the outfan as described second load blocks altogether with the second end of described second load resistance.
6. the pressure drop detection system of USB data line as claimed in claim 3, it is characterised in that described 3rd load blocks bag
Include the 3rd current-limiting resistance, the 3rd load resistance and the 3rd indicating member；
First end of described 3rd current-limiting resistance and the first end of described 3rd load resistance connect altogether as described 3rd load mould
The input of block, the hot end of the second described 3rd indicating member of termination of described 3rd current-limiting resistance, described 3rd instruction
The cold end of unit connects the outfan as described 3rd load blocks altogether with the second end of described 3rd load resistance.
7. the pressure drop detection system of USB data line as claimed in claim 4, it is characterised in that described first indicating member is
First light emitting diode, the anode of described first light emitting diode and negative electrode are respectively the hot end of described first indicating member
And cold end；Or described first indicating member is the first galvanometer, described first galvanometric hot end and cold end
It is respectively hot end and the cold end of described first indicating member.
8. the pressure drop detection system of USB data line as claimed in claim 5, it is characterised in that described second indicating member is
Second light emitting diode, the anode of described second light emitting diode and negative electrode are respectively the hot end of described second indicating member
And cold end；Or described second indicating member is the second galvanometer, described second galvanometric hot end and cold end
It is respectively hot end and the cold end of described second indicating member.
9. the pressure drop detection system of USB data line as claimed in claim 6, it is characterised in that described 3rd indicating member is
3rd light emitting diode, the anode of described 3rd light emitting diode and negative electrode are respectively the hot end of described 3rd indicating member
And cold end；Or described 3rd indicating member is the 3rd galvanometer, described 3rd galvanometric hot end and cold end
It is respectively hot end and the cold end of described 3rd indicating member.
10. the pressure drop detection system of the USB data line as described in claim 2-9 any one, it is characterised in that described electric current
Control circuit is arranged in the shell of described current control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620743623.2U CN205880039U (en) | 2016-07-13 | 2016-07-13 | Pressure drop detecting system of USB data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620743623.2U CN205880039U (en) | 2016-07-13 | 2016-07-13 | Pressure drop detecting system of USB data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880039U true CN205880039U (en) | 2017-01-11 |
Family
ID=57695899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620743623.2U Active CN205880039U (en) | 2016-07-13 | 2016-07-13 | Pressure drop detecting system of USB data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771503A (en) * | 2017-02-15 | 2017-05-31 | 广东小天才科技有限公司 | Voltage x current supervising device and method |
| CN109391007A (en) * | 2018-11-16 | 2019-02-26 | 北汽福田汽车股份有限公司 | Vehicle, charging unit |
-
2016
- 2016-07-13 CN CN201620743623.2U patent/CN205880039U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771503A (en) * | 2017-02-15 | 2017-05-31 | 广东小天才科技有限公司 | Voltage x current supervising device and method |
| CN109391007A (en) * | 2018-11-16 | 2019-02-26 | 北汽福田汽车股份有限公司 | Vehicle, charging unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180503 Address after: 644000 Lingang Economic and Technological Development Zone, Yibin, Sichuan, No. 713, section 17, 17 section of Changjiang North Road, Lingnan economic and Technological Development Zone. Patentee after: Yibin bond China smart technology Co., Ltd. Address before: 518029 Shenzhen, Futian District, Guangdong Province garden Ridge Street, Bagua road 31, Zhongxin science and Technology Building 9 storey (building 10 10) 1001 Patentee before: Zhou Qi |
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| TR01 | Transfer of patent right |