CN208092166U - A kind of USB data line detection device - Google Patents
A kind of USB data line detection device Download PDFInfo
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- CN208092166U CN208092166U CN201820560792.1U CN201820560792U CN208092166U CN 208092166 U CN208092166 U CN 208092166U CN 201820560792 U CN201820560792 U CN 201820560792U CN 208092166 U CN208092166 U CN 208092166U
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- interface
- data line
- usb data
- relay
- circuit
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Abstract
The utility model discloses a kind of USB data line detection devices, are related to USB data line technical field of measurement and test, it is intended to solve the problems, such as that the detection sensitivity of existing USB data line test device is relatively low.Its key points of the technical solution are that after first interface and second interface are inserted into the both ends of USB data line respectively, power supply input circuit is controlled by control circuit and power output circuit is connected.Since indicator light is higher to the susceptibility of electric current, if when USB data line internal short-circuit, open circuit or bad connection, indicator light will appear the case where not working or flickering, have the advantages that detection sensitivity is high.
Description
Technical field
The utility model is related to USB data line technical field of measurement and test, more specifically, it relates to which a kind of USB data line is examined
Survey device.
Background technology
USB data line is connected and communicate with for computer and external equipment, it can also be used to the charging of mobile phone and with it is external
Connection.It includes power cord（VCHG）, ground wire（GND）, correction data line（USB_D+）, negative data line（USB_D-）And signal screen
Cover line.USB data line is after the completion of production, to ensure its charging performance and data transmission performance, usually it is carried out short circuit,
Out of circuit test.
The Chinese patent that existing Authorization Notice No. is CN205404693U discloses a kind of USB data line and waves limit test
Device, including test device and pedestal, test device front side are equipped with test mouth corresponding with USB data line, four side of test device
Edge is all provided with fluted, is respectively equipped in groove and waves limiting device, waved limiting device and electrically connect with an instruction device respectively
It connects.When test, if quality inspection personnel is not completed to test according to standard operation, alarming device is by alarm.
But it when testing the performance of USB data line using above-mentioned test device, is only capable of detecting to wave USB data line
More apparent short open circuit in the process, detection sensitivity is relatively low, is easy to cause the outflow of defective products, this problem has to be solved.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of USB data line detection device,
It is with the high advantage of detection sensitivity.
To achieve the above object, the utility model provides following technical solution：
A kind of USB data line detection device, including lamp drafting board and with the first interface of lamp drafting board two-way communication link and
Second interface；The lamp drafting board includes the power supply input circuit being connect with first interface, the power supply being connect with second interface output
Circuit and control circuit for controlling power supply input circuit and power output circuit break-make, the power supply input circuit and
It is connected with indicator light between one interface.
By using above-mentioned technical proposal, when needing to test the performance of USB data line, first by the both ends of USB data line
It is inserted into first interface and second interface respectively, power supply input circuit is then controlled by control circuit and power output circuit is connected
?.At this point, since indicator light is higher to the susceptibility of electric current, if having short circuit, open circuit or bad connection inside USB data line
Situation, indicator light can not work or flicker, and have the advantages that detection sensitivity is high.
Further, there are five the indicator light settings, five indicator lights are arranged in parallel；The first interface setting
There are five first port, there are five second port, the first port is corresponded with indicator light to be connected for the second interface setting
It connects.
By using above-mentioned technical proposal, five indicator lights respectively with the power cord of USB data line, ground wire, two datas
Line and signal shielding line correspond to, and do not interfere with each other, and improve the precision of USB data line detection, facilitate the property of every line of detection
Energy.
Further, the power supply input circuit includes power input interface, and there are five the power input interface connections
First relay, first relay connect one to one with indicator light.
By using above-mentioned technical proposal, five the first relays connect one to one with five indicator lights, facilitate control
The power supply of indicator light has the function of that indicator light can be protected.
Further, it is respectively connected with current-limiting resistance between first relay and corresponding indicator light.
By using above-mentioned technical proposal, current-limiting resistance has protective effect, indicator light is prevented to be burned.
Further, the power output circuit includes power output interface, and there are five the power output interface connections
Second relay, second relay connect one to one with second port.
By using above-mentioned technical proposal, five the second relays connect one to one with five second ports, have side
Just the effect of break-make between power output interface and five ports is controlled.
Further, the control circuit includes signal input interface, and the signal input interface is connected with microprocessor,
The microprocessor is connected with the third relay for controlling the first relay and the second relay on-off；The signal input
Interface is also associated with for the test machine to microprocessor transmission of control signals.
By using above-mentioned technical proposal, when needing to detect the performance of USB data line, microprocessor is sent out to third relay
Electric signals so that the movable contact of third relay is connected with normally opened contact, so that third relay controls the first relay
Device and the second relay are attracted, and detection circuit is connected, and have and control power supply input circuit is facilitated to be connected to power output circuit
The effect of state.
Further, power input line and power supply output line, the power input line and electricity are provided on the test machine
Source input interface connection, the power supply output line are connect with power output interface.
It is convenient to provide power supply for detection circuit by using above-mentioned technical proposal.
Further, it is additionally provided with duplicate relay on the lamp drafting board.
By using above-mentioned technical proposal, when a certain relay damaged on power supply input circuit or power output circuit
When, it may be convenient to duplicate relay is connected into corresponding circuit, improves the serious forgiveness of detection device.
In conclusion the utility model has the advantages that：
1, the structure to be connected one to one using first port and indicator light has the effect that can improve detection precision
Fruit；
2, by the way that the first relay and the second relay is arranged, have and facilitate control power supply input circuit and power supply output electricity
The effect of the break-make on road；
3, by the way that current-limiting resistance is arranged, have the effect of to prevent indicator light from burning out.
Description of the drawings
Fig. 1 is the overall structure diagram of USB data line detection device in embodiment；
Fig. 2 is the structural schematic diagram of power supply input circuit in embodiment；
Fig. 3 is the structural schematic diagram of power output circuit in embodiment；
Fig. 4 is the structural schematic diagram of control circuit in embodiment；
Fig. 5 is the structural schematic diagram of lamp drafting board in embodiment.
In figure：100, lamp drafting board；101, duplicate relay；200, first interface；201, first port；300, it second connects
Mouthful；301, second port；400, power supply input circuit；401, power input interface；402, the first relay；403, current limliting electricity
Resistance；500, power output circuit；501, power output interface；502, the second relay；600, control circuit；601, signal inputs
Interface；602, microprocessor；603, third relay；700, indicator light；800, test machine；801, power input line；802, electric
Source output line.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Embodiment：
A kind of USB data line detection device, referring to Fig.1 comprising lamp drafting board 100, first interface 200 and second interface
300, first interface 200 and second interface 300 with 100 two-way communication link of lamp drafting board.In the present embodiment, first interface
200 with the standard USB public affairs mouths of USB data line for connecting, and second interface 300 is for the micro USB females with USB data line
Connection.Power supply input circuit 400, power output circuit 500 and control circuit 600, power input electricity are provided on lamp drafting board 100
Road 400 is connect with first interface 200, and power output circuit 500 is connect with second interface 300, and control circuit 600 is for controlling electricity
The break-make of source input circuit 400 and power output circuit 500.
With reference to Fig. 2, power supply input circuit 400 includes power input interface 401, and there are five the connections of power input interface 401
First relay 402.Five the first relays 402 connect one to one with five indicator lights 700 respectively, and five indicator lights
700 connect one to one with five first ports 201 of first interface 200 respectively, for indicating respectively USB data line interior power
The connected state of line, ground wire, two data lines and signal shielding line.Between first relay 402 and corresponding indicator light 700
It is connected with current-limiting resistance 403, current-limiting resistance 403 has protective effect, can prevent indicator light 700 from burning out, improve indicator light
700 service life.
With reference to Fig. 3, power output circuit 500 includes power output interface 501, and there are five the connections of power output interface 501
Second relay 502, five the second relays 502 are corresponded with five second ports 301 of second interface 300 respectively to be connected
It connects.
With reference to Fig. 4, control circuit 600 includes signal input interface 601, and signal input interface 601 is connected with microprocessor
602, microprocessor 602 is connected with third relay 603, and third relay 603 is for controlling the first relay 402（With reference to figure
2）With the second relay 502（With reference to Fig. 3）Break-make.Signal input interface 601 is also associated with test machine 800, needs to detect USB
When the performance of data line, test machine 800 is to 602 transmission of control signals of microprocessor.At this point, microprocessor 602 is to third relay
Device 603 sends electric signal so that the movable contact of third relay 603 is connected with normally opened contact, so that third relay 603
It controls the first relay 402 and the second relay 502 is attracted conducting.
With reference to Fig. 4, power input line 801 and power supply output line 802, power input line 801 are additionally provided on test machine 800
For being connect with power input interface 401, for power supply output line 802 for being connect with power output interface 501, it is convenient for inspection to have
Survey the effect that device provides power supply.In the present embodiment, test machine 800 is that detection device provides 5V DC power supplies.
With reference to Fig. 5, it is further fixedly arranged on duplicate relay 101 on lamp drafting board 100, when power supply input circuit 400 or power supply
When some relay damaged on output circuit 500, it may be convenient to be welded duplicate relay 101 using tools such as conducting wires
Enter in corresponding circuit, so that detection device can normally work, improves the serious forgiveness of detection device.
Operation principle is as follows：
When needing to test the performance of USB data line, first, the both ends of USB data line are corresponded into 200 He of first interface respectively
Second interface 300 is plugged.After test machine 800 is to 602 transmission of control signals of microprocessor, the first relay 402, the second relay
Device 502 and third relay 603 are attracted, so that power supply input circuit 400 and power output circuit 500 are both turned on.This
When, since indicator light 700 is higher to the susceptibility of electric current, if there is the feelings of short circuit, open circuit or bad connection inside USB data line
Condition, corresponding indicator light 700 can not work or flicker, and quality inspection personnel is facilitated to observe the connected state of each line in USB data line,
Have the advantages that detection sensitivity is high.
Claims (8)
1. a kind of USB data line detection device, it is characterised in that：Including lamp drafting board (100) and with lamp drafting board (100) two-way
Believe the first interface (200) and second interface (300) of connection；The lamp drafting board (100) includes being connect with first interface (200)
Power supply input circuit (400), the power output circuit (500) being connect with second interface (300) and for controlling power input
The control circuit (600) of circuit (400) and power output circuit (500) break-make, the power supply input circuit (400) connect with first
It is connected with indicator light (700) between mouth (200).
2. a kind of USB data line detection device according to claim 1, it is characterised in that：Indicator light (700) setting
There are five, five indicator lights (700) are arranged in parallel；First port (201) that there are five first interface (200) settings,
There are five second port (301), the first port (201) is a pair of with indicator light (700) one for second interface (300) setting
It should connect.
3. a kind of USB data line detection device according to claim 2, it is characterised in that：The power supply input circuit
(400) include power input interface (401), there are five the first relay (402), institutes for power input interface (401) connection
The first relay (402) is stated to connect one to one with indicator light (700).
4. a kind of USB data line detection device according to claim 3, it is characterised in that：First relay (402)
Current-limiting resistance (403) is respectively connected between corresponding indicator light (700).
5. a kind of USB data line detection device according to claim 4, it is characterised in that：The power output circuit
(500) include power output interface (501), there are five the second relay (502), institutes for power output interface (501) connection
The second relay (502) is stated to connect one to one with second port (301).
6. a kind of USB data line detection device according to claim 5, it is characterised in that：Control circuit (600) packet
Signal input interface (601) is included, the signal input interface (601) is connected with microprocessor (602), the microprocessor
(602) it is connected with the third relay (603) for controlling the first relay (402) and the second relay (502) break-make；It is described
Signal input interface (601) is also associated with for the test machine (800) to microprocessor (602) transmission of control signals.
7. a kind of USB data line detection device according to claim 6, it is characterised in that：It is set on the test machine (800)
It is equipped with power input line (801) and power supply output line (802), the power input line (801) connects with power input interface (401)
It connects, the power supply output line (802) connect with power output interface (501).
8. a kind of USB data line detection device according to any one of claim 1-7, it is characterised in that：The lamp is surveyed
Duplicate relay (101) is additionally provided on plate (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820560792.1U CN208092166U (en) | 2018-04-18 | 2018-04-18 | A kind of USB data line detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820560792.1U CN208092166U (en) | 2018-04-18 | 2018-04-18 | A kind of USB data line detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208092166U true CN208092166U (en) | 2018-11-13 |
Family
ID=64056478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820560792.1U Expired - Fee Related CN208092166U (en) | 2018-04-18 | 2018-04-18 | A kind of USB data line detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208092166U (en) |
-
2018
- 2018-04-18 CN CN201820560792.1U patent/CN208092166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |