CN206193137U - USB cable short -circuit test system and mancarried device - Google Patents
USB cable short -circuit test system and mancarried device Download PDFInfo
- Publication number
- CN206193137U CN206193137U CN201620907518.8U CN201620907518U CN206193137U CN 206193137 U CN206193137 U CN 206193137U CN 201620907518 U CN201620907518 U CN 201620907518U CN 206193137 U CN206193137 U CN 206193137U
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- usb interface
- interface module
- circuit
- module
- usb
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a USB cable short -circuit test system and mancarried device, wherein, a USB interface module for connect the one end of being surveyed the USB cable, the 2nd USB interface module for connect the other end of being surveyed the USB cable, a USB interface module and the 2nd USB interface module's power end all is connected with the power input end, short -circuit detection module's input and a USB interface module's earthing terminal are connected, and its output is connected with the control input end of switch module for voltage signal between the shielding end of gathering a USB interface module is held with the 2nd USB interface module's shielding, the control output of switch module is connected with display module as a result, according to the voltage signal control results display module advances line display. The utility model discloses low cost, simple structure, portable, nature directly perceived is strong, and easily operation is applicable to non professional and uses.
Description
Technical field
The utility model is related to USB cable testing field, especially a kind of USB cable short-circuit test system, and a kind of
Portable test arrangement based on the system.
Background technology
USB cable is device necessary to most of smart machines, and with the large-scale application of smart machine, USB line
The production firm of cable is also more and more, and the yield of USB cable is also increasing.However, the USB cable matter sold in the market
Amount is uneven, and low-quality USB cable is likely to occur problem when being squeezed, bending, and the lighter's None- identified sets
Standby, severe one causes equipment to burn out, therefore, whether the quality of USB cable is qualified, is extremely important, especially for consumer
For, significant care is needed when USB cable is chosen.
Because there is internal driving in USB cable so that the voltage of charger output exists with the voltage that smart machine is received
Certain pressure difference, and when the internal driving of USB cable is larger, its output voltage becomes too low, can cause that most of intelligence sets
It is standby to be charged under this voltage, but also some safety issues may be brought.
In addition, the pursuit with user to high recharge efficiency, the charging current of smart machine becomes more and more higher, such as flat board
Apparatus such as computer is generally charged using 2A electric currents, and under the charging environment of high current, the internal resistance of USB cable can bring
Bigger power consumption penalty, further increases the pressure difference between charger and smart machine.
Therefore, in consumer when USB cable is bought, need badly a kind of can be detected to the charging quality of USB cable
Detection means, but current USB cable detection means is typically all a kind of tester suitable for relevant speciality personage, it is needed
Operator is wanted to possess certain Electronics knowledge, and purchase cost is high.
And for the laymans such as consumer, vendor, the testing cost of the tester of this specialty is high, and easily behaviour
The property made is poor, and the quality and performance that layman can not be quickly and intuitively to USB cable make assessment.
Particularly, if short trouble occurs in USB cable, it is likely to burn out connected equipment, it is dangerous larger, because
And USB cable whether short circuit be USB cable assessment one of important references index.
Utility model content
The purpose of this utility model is：For above-mentioned problem, there is provided a kind of USB cable short-circuit test system,
And a kind of portable test arrangement based on the system.
The technical solution adopted in the utility model is as follows：
The utility model discloses a kind of USB cable short-circuit test system, the system includes：First usb interface module,
Secondary USB interface module, short-circuit detecting module, switch module and result display module.
Wherein, first usb interface module, the one end for connecting tested USB cable；The secondary USB interface mould
The power end of block, the other end for connecting tested USB cable, the first usb interface module and secondary USB interface module with electricity
Source input connection；The input of the short-circuit detecting module is connected with the earth terminal of the first usb interface module, its output end with
The control signal connection of switch module, for gathering the earth terminal of the first usb interface module and connecing for secondary USB interface module
Voltage signal between ground terminal；The control output end of the switch module is connected with result display module, is believed according to the voltage
Number control result display module is shown.
Based on above-described embodiment, further, the short-circuit detecting module includes bleeder circuit and comparator, the partial pressure
The input of circuit is connected with the earth terminal of the first usb interface module, and its output end is connected with the signal input part of comparator, institute
The reference edge for stating comparator is connected with reference voltage output terminal, and its signal output part is connected with the control signal of switch module.
Based on any of the above-described embodiment, further, the bleeder circuit include the resistance R15 of resistance R10 and parallel connection and
Electric capacity C11, the signal input part of comparator is connected between resistance R10 and resistance R15, the other end of resistance R10 and a USB
Interface module earth terminal connection, the other end of resistance R15 with dock.
Based on any of the above-described embodiment, further, the result display module includes LED light LED15.
Based on any of the above-described embodiment, further, the switch module includes triode Q4, the hair of the triode Q4
Emitter-base bandgap grading with dock, its colelctor electrode is connected by LED light LED15 with the power input, its base stage and switch module
Control output end connection.
Based on any of the above-described embodiment, further, the system also includes the 3rd USB interface for connecing electric supply installation
Module, the output end of the 3rd usb interface module is connected with the power input.
Based on any of the above-described embodiment, further, the system also includes battery, charging circuit and discharge circuit,
The charging end of the battery is connected by charging circuit with the power end of secondary USB interface module, the electric discharge of the battery
End is connected by discharge circuit with the power input.
Based on any of the above-described embodiment, further, the system also includes battery, charging circuit and discharge circuit,
The charging end of the battery is connected by charging circuit with the power end of the 3rd usb interface module, the electric discharge of the battery
End is connected by discharge circuit with the power input.
The utility model also proposed a kind of mancarried device, including housing and internal circuit board, the internal circuit board collection
Into the short-circuit test system having described in any of the above-described embodiment, the housing is provided with and matches with the first usb interface module
One or more second openings and match with result display module that first opening and secondary USB interface module match
3rd opening.
Based on above-described embodiment, further, the 4th matched with the 3rd usb interface module is additionally provided with the housing
Opening.
In sum, by adopting the above-described technical solution, the beneficial effects of the utility model are：
（1）The utility model proposes a kind of short-circuit test system of USB cable, it is to USB cable based on hardware circuit
No short circuit detected, its simple structure, with low cost, easily operated, it is adaptable to which layman uses.Can directly use
LED shows test result, and intuitive is strong.
（2）The utility model also proposed a kind of portable test arrangement based on the system, and its compact can be made
Common U disk size, is easy to carry, and possesses various USB interfaces, can test most conventional on the market by a tester
USB interface, practicality is high.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model
Fig. 3 is appearance schematic diagram of the present utility model.
In figure, 1- housings, 2- first is open, and 3- second is open, and 4- the 3rd is open, and 5- the 4th is open.
Specific embodiment
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Equivalent by other or with similar purpose alternative features are replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
Below in conjunction with the accompanying drawings, the utility model is described in detail.
As shown in Fig. 1, Fig. 1 describes a kind of USB cable short-circuit test system, and the system includes：First USB interface
Module, secondary USB interface module, short-circuit detecting module, switch module and result display module.
Wherein, first usb interface module, the one end for connecting tested USB cable；The secondary USB interface mould
The power end of block, the other end for connecting tested USB cable, the first usb interface module and secondary USB interface module with electricity
Source input connection；The input of the short-circuit detecting module is connected with the earth terminal of the first usb interface module, its output end with
The control signal connection of switch module, for gathering the earth terminal of the first usb interface module and connecing for secondary USB interface module
Voltage signal between ground terminal；The control output end of the switch module is connected with result display module, is believed according to the voltage
Number control result display module is shown.
Based on above-described embodiment, further, the short-circuit detecting module includes bleeder circuit and comparator, compares certainly
Device can be replaced the ground connection of PLC chip or ARM microcontroller etc., the input of the bleeder circuit and the first usb interface module
End connection, its output end is connected with the signal input part of comparator, and reference edge and the reference voltage output terminal of the comparator connect
Connect, its signal output part is connected with the control signal of switch module.
As shown in Fig. 2 the bleeder circuit includes the resistance R15 and electric capacity C11 of resistance R10 and parallel connection, the letter of comparator
Number input is connected between resistance R10 and resistance R15, and the earth terminal of the other end of resistance R10 and the first usb interface module connects
Connect, the other end of resistance R15 with dock.
The result display module can use LED light, and display result is easy and effective.For example, using LED light
LED15。
The switch module includes triode Q4, the emitter stage of the triode Q4 with dock, its colelctor electrode is by LED
Indicator lamp LED15 is connected with power input, and its base stage is connected by resistance R22 with the control output end of switch module.
When being detected using the utility model, USB cable to be measured is inserted into the first usb interface module and the 2nd USB
Interface module, short-circuit detecting module starts detection, if the voltage of the voltage signal ADC5 of its output is more than or equal to reference voltage
Vref, reference voltage Vref can be the half of supply voltage VCC, just illustrate that the USB cable has circuit defect, export high level
Short signals, triode Q4 conductings, LED15 lamps are bright.
Based on any of the above-described embodiment, further, the system also includes the 3rd USB interface for connecing electric supply installation
Module, the output end of the 3rd usb interface module is connected with the power input.
The utility model includes following two power supply plans.
One：The system includes the 3rd usb interface module for connecing electric supply installation, the 3rd usb interface module
Output end be connected with the power input.
Using scheme one, user is needed to insert in the USB interface that can be powered the 3rd usb interface module, using external power source
For the utility model is powered.
Secondly：The system also includes battery, charging circuit and discharge circuit, and test is provided using built-in battery
The electric energy of Shi Suoxu.
Using the program two, user can utilize the built-in storage battery power supply of the utility model, compared to scheme one, this programme
More practicality.
In addition, in scheme two, the charging modes of battery have two kinds, and a kind of is that the charging end of battery passes through charging circuit
Power end with secondary USB interface module is connected, and battery is charged using secondary USB interface module；Another kind is electric power storage
The charging end in pond is connected by charging circuit with the power end of the 3rd usb interface module, is electric power storage using the 3rd usb interface module
Charge in pond.The former need to be charged using a USB charging wire for battery, and the latter can directly lead to without extra USB charging wires
The charging of USB interface direct inserting and drawing is crossed, it is more convenient.
In the utility model, mu balanced circuit is may also include between the first usb interface module and secondary USB interface module, such as
In the voltage-regulator diode D1 and D2 that are connected in parallel between the first usb interface module and the 3rd usb interface module.
Based on above-described embodiment, in further the utility model, first usb interface module can be connected for female
Device；It is preferred that using reversible USB female connectors, USB-AF90CB modules are such as used；The secondary USB interface module can be
Micro USB interfaces, Mini USB interfaces, 8-Pin USB interfaces, 10-Pin USB interfaces, 30-Pin USB interfaces and Type-
The USB interface of one or more combination, or other specifications in C USB interfaces；3rd usb interface module is public affairs
Head connector, it is preferred to use reversible USB male joint connector, such as uses USBAM-P-N modules.
As shown in figure 3, Fig. 3 describes a kind of mancarried device, including housing 1 and internal circuit board, the internal circuit board
The short-circuit test system described in any of the above-described embodiment is integrated with, the housing 1 is provided with and matches with the first usb interface module
One or more second openings 3 for matching with secondary USB interface module of the first opening 2 and with result display module phase
The 3rd opening 4 matched somebody with somebody.
Based on above-described embodiment, further, matched with the 3rd usb interface module is additionally provided with the housing 1
Four openings 5.
Volume of the present utility model can make USB flash disk size, and compact is with low cost, and simple structure is easy to carry, directly
The property seen is strong, it is easy to operate, it is adaptable to which layman uses.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of USB cable short-circuit test system, it is characterised in that the system includes：First usb interface module, the 2nd USB
Interface module, short-circuit detecting module, switch module and result display module；
First usb interface module, the one end for connecting tested USB cable；The secondary USB interface module, for even
Connect the other end of tested USB cable, the power end of the first usb interface module and secondary USB interface module is and power input
Connection；
The input of the short-circuit detecting module is connected with the earth terminal of the first usb interface module, its output end and switch module
Control signal connection, for gather the first usb interface module earth terminal and the earth terminal of secondary USB interface module between
Voltage signal；
The control output end of the switch module is connected with result display module, and mould is shown according to the voltage signal control result
Block is shown.
2. a kind of USB cable short-circuit test system according to claim 1, it is characterised in that the short-circuit detecting module
Including bleeder circuit and comparator, the input of the bleeder circuit is connected with the earth terminal of the first usb interface module, its output
End is connected with the signal input part of comparator, and the reference edge of the comparator is connected with reference voltage output terminal, its signal output
End is connected with the control signal of switch module.
3. a kind of USB cable short-circuit test system according to claim 2, it is characterised in that the bleeder circuit includes
Resistance R10 and the resistance R15 and electric capacity C11 of parallel connection, the signal input part of comparator are connected between resistance R10 and resistance R15,
The other end of resistance R10 is connected with the earth terminal of the first usb interface module, the other end of resistance R15 with dock.
4. a kind of USB cable short-circuit test system according to claim 1, it is characterised in that the result display module
Including LED light LED15.
5. a kind of USB cable short-circuit test system according to claim 4, it is characterised in that the switch module includes
Triode Q4, the emitter stage of the triode Q4 with dock, its colelctor electrode by LED light LED15 it is defeated with the power supply
Enter end connection, its base stage is connected with the control output end of switch module.
6. a kind of USB cable short-circuit test system according to claim 1, it is characterised in that the system also includes using
In the 3rd usb interface module for connecing electric supply installation, the output end of the 3rd usb interface module connects with the power input
Connect.
7. a kind of USB cable short-circuit test system according to claim 1, it is characterised in that the system also includes storing
Battery, charging circuit and discharge circuit, the charging end of the battery is by charging circuit and the power supply of secondary USB interface module
End connection, the discharge end of the battery is connected by discharge circuit with the power input.
8. a kind of USB cable short-circuit test system according to claim 6, it is characterised in that the system also includes storing
Battery, charging circuit and discharge circuit, the charging end of the battery is by charging circuit and the power supply of the 3rd usb interface module
End connection, the discharge end of the battery is connected by discharge circuit with the power input.
9. a kind of mancarried device, including housing（1）It is built-in with short-circuit test system described in integrated any one of claim 1-8
Circuit board, it is characterised in that：The housing（1）It is provided with the first opening matched with the first usb interface module（2）With
One or more second openings that two usb interface modules match（3）And the 3rd opening matched with result display module
（4）.
10. a kind of mancarried device according to claim 9, it is characterised in that the housing（1）On be additionally provided with and the 3rd
The 4th opening that usb interface module matches（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907518.8U CN206193137U (en) | 2016-08-19 | 2016-08-19 | USB cable short -circuit test system and mancarried device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907518.8U CN206193137U (en) | 2016-08-19 | 2016-08-19 | USB cable short -circuit test system and mancarried device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193137U true CN206193137U (en) | 2017-05-24 |
Family
ID=58737163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620907518.8U Expired - Fee Related CN206193137U (en) | 2016-08-19 | 2016-08-19 | USB cable short -circuit test system and mancarried device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193137U (en) |
-
2016
- 2016-08-19 CN CN201620907518.8U patent/CN206193137U/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 |
Granted publication date: 20170524 Termination date: 20210819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |