CN207096367U - A kind of current leakage test system - Google Patents
A kind of current leakage test system Download PDFInfo
- Publication number
- CN207096367U CN207096367U CN201720885819.XU CN201720885819U CN207096367U CN 207096367 U CN207096367 U CN 207096367U CN 201720885819 U CN201720885819 U CN 201720885819U CN 207096367 U CN207096367 U CN 207096367U
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- China
- Prior art keywords
- test system
- circuit
- bottom plate
- semiconductor switch
- current leakage
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000004065 semiconductor Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses a kind of current leakage test system, including upper cover and bottom plate, circuit board is provided between upper lid and bottom plate, USB interface is provided with circuit board, the side of USB interface is provided with semiconductor switch, the side of semiconductor switch is provided with photoelectrical coupler, the opposite side of semiconductor switch is provided with voltage follower, the side of voltage follower is provided with circuit amplifier, the opposite side of circuit amplifier is provided with process chip, the opposite side of process chip is provided with power circuit, the side of process chip is provided with control panel, the circuit amplifier of setting makes current leakage test system still can be with normal use when to low current, and the photoelectrical coupler set can make to realize complete electrical isolation between circuit-under-test and test system, reduce interference between the two, to protect the safety of test system.
Description
Technical field
A kind of current detecting system is the utility model is related to, more particularly to a kind of current leakage test system.
Background technology
With the improvement of people's living standards, household electronic products are continuously emerged in every family, and quantity constantly increases
Add, on the one hand these electrical equipment facilitate the family life of the people, and this is also resulted in because electric equipment triggers fire but then
Calamity and injury accident cause the person and property to be compromised the aggravation of situation, and wherein leakage current is to cause accident and harm occur
One of major reason.
Be used for detecting whether on the market at present electric leakage instrument have voltage test pencil and universal meter both, wherein voltage test pencil can only
Judge whether to leak electricity and leakage current size can not be judged, and when leakage current is too small, voltage test pencil is not it is also possible to can
Situation about detecting, and during use universal meter, its electric current is also required, when current is excessive, universal meter may be punctured, is made
Into economic loss.
Utility model content
The technical problems to be solved in the utility model is the defects of overcoming prior art, there is provided a kind of current leakage test system
System.
In order to solve the above-mentioned technical problem, the utility model provides following technical scheme：
A kind of current leakage test system of the utility model, including upper cover and bottom plate, set between the upper lid and bottom plate
There is circuit board, USB interface is provided with the circuit board, the side of the USB interface is provided with semiconductor switch, described partly to lead
The side of body switch is provided with photoelectrical coupler, and the opposite side of the semiconductor switch is provided with voltage follower, the voltage
The side of follower is provided with circuit amplifier, and the opposite side of the circuit amplifier is provided with process chip, the processing core
The opposite side of piece is provided with power circuit, and the side of the process chip is provided with control panel.
As a kind of optimal technical scheme of the present utility model, the USB interface, semiconductor switch, photoelectrical coupler, electricity
Pressure follower and circuit amplifier be electrically connected with successively, the photoelectrical coupler, voltage follower and circuit amplifier respectively with
Power circuit is electrically connected with, and the semiconductor switch, circuit amplifier and control panel are electrically connected with process chip respectively.
As a kind of optimal technical scheme of the present utility model, control panel window, the bottom are provided with the upper lid
The side of plate is provided with USB windows, and the bottom of the bottom plate is provided with foot pad, and the foot pad is arranged on bottom plate by screw.
As a kind of optimal technical scheme of the present utility model, USB is provided with the USB interface, the USB is inserted
The side of mouth is provided with test pen.
As a kind of optimal technical scheme of the present utility model, the upper cover and bottom plate are made using ABS material.
The beneficial effect that the utility model is reached is：The utility model makes current leakage by the circuit amplifier of setting
Test system still can be with normal use when to low current, and the photoelectrical coupler set can make circuit-under-test and test system
Complete electrical isolation is realized between system, reduces interference between the two, to protect the safety of test system.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is module map of the present utility model；
In figure：1st, upper lid；2nd, bottom plate；3rd, circuit board；4th, USB interface；5th, semiconductor switch；6th, photoelectrical coupler；7th, it is electric
Press follower；8th, circuit amplifier；9th, process chip；10th, power circuit；11st, control panel；12nd, control panel window；13、
USB windows；14th, foot pad；15th, screw；16th, USB；17th, test pen.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Embodiment 1
As shown in Figure 1-2, the utility model provides a kind of current leakage test system, including upper lid 1 and bottom plate 2, upper lid 1
Circuit board 3 is provided between bottom plate 2, USB interface 4 is provided with circuit board 3, the side of USB interface 4 is provided with semiconductor and opened
5 are closed, the side of semiconductor switch 5 is provided with photoelectrical coupler 6, and the opposite side of semiconductor switch 5 is provided with voltage follower 7,
The side of voltage follower 7 is provided with circuit amplifier 8, and the opposite side of circuit amplifier 8 is provided with process chip 9, handles core
The opposite side of piece 9 is provided with power circuit 10, and the side of process chip 9 is provided with control panel 11.
USB interface 4, semiconductor switch 5, photoelectrical coupler 6, voltage follower 7 and circuit amplifier 8 electrically connect successively
Connecing, photoelectrical coupler 6, voltage follower 7 and circuit amplifier 8 are electrically connected with power circuit 10 respectively, semiconductor switch 5,
Circuit amplifier 8 and control panel 11 are electrically connected with process chip 9 respectively, by being electrically connected with strengthening electric current leakage testses system
System job stability.
Control panel window 12 is provided with upper lid 1, the side of bottom plate 2 is provided with USB windows 13, and the bottom of bottom plate 2 is set
Foot pad 14 is equipped with, foot pad 14 is installed on a base plate 2 by screw 15, and control panel window 12 and USB windows 13 are easily installed control
Panel 11 and USB interface 4 processed.
USB 16 is provided with USB interface 4, the side of USB 16 is provided with test pen 17, and test pen 17 is used for
Data information acquisition between circuit-under-test and test system.
Upper lid 1 and bottom plate 2 are made using ABS material, and ABS material has intensity height, good toughness, is easily processed into
The advantages of type.
Specifically, in use, the USB 16 of the afterbody of test pen 17 is inserted into the USB interface 4 on circuit board 3, then
Test pen 17 is accessed in circuit-under-test, leakage current is input to the semiconductor switch with isolation features of inside by test pen 17
In 5, on control panel 11, user is according to the current value of circuit-under-test substantially is set, and after being provided with, process chip 9 receives
Above-mentioned test parameter test command, process chip 9 drives semiconductor switch 5 to turn on, so that leakage current passes through photoelectric coupling successively
Device 6 and voltage follower 7, which flow through the electric leakage collected, to be fed through process chip 9 after circuit amplifier 8 is handled and is analyzed,
Process chip 9 again includes leakage current on control panel 11, is easy to reading and understands leakage current size.
The beneficial effect that the utility model is reached is：The utility model makes current leakage by the circuit amplifier of setting
Test system still can be with normal use when to low current, and the photoelectrical coupler set can make circuit-under-test and test system
Complete electrical isolation is realized between system, reduces interference between the two, to protect the safety of test system.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of current leakage test system, including upper lid（1）And bottom plate（2）, the upper lid（1）With bottom plate（2）Between set
There is circuit board（3）, it is characterised in that the circuit board（3）On be provided with USB interface（4）, the USB interface（4）Side set
It is equipped with semiconductor switch（5）, the semiconductor switch（5）Side be provided with photoelectrical coupler（6）, the semiconductor switch
（5）Opposite side be provided with voltage follower（7）, the voltage follower（7）Side be provided with circuit amplifier（8）, institute
State circuit amplifier（8）Opposite side be provided with process chip（9）, the process chip（9）Opposite side be provided with power supply electricity
Road（10）, the process chip（9）Side be provided with control panel（11）.
A kind of 2. current leakage test system according to claim 1, it is characterised in that the USB interface（4）, partly lead
Body switchs（5）, photoelectrical coupler（6）, voltage follower（7）And circuit amplifier（8）It is electrically connected with successively, the photoelectric coupling
Device（6）, voltage follower（7）And circuit amplifier（8）Respectively with power circuit（10）It is electrically connected with, the semiconductor switch
（5）, circuit amplifier（8）And control panel（11）Respectively with process chip（9）It is electrically connected with.
A kind of 3. current leakage test system according to claim 1, it is characterised in that the upper lid（1）On be provided with
Control panel window（12）, the bottom plate（2）Side be provided with USB windows（13）, the bottom plate（2）Bottom be provided with pin
Pad（14）, the foot pad（14）Pass through screw（15）Installed in bottom plate（2）On.
A kind of 4. current leakage test system according to claim 1, it is characterised in that the USB interface（4）Interior setting
There is USB（16）, the USB（16）Side be provided with test pen（17）.
A kind of 5. current leakage test system according to claim 1, it is characterised in that the upper lid（1）And bottom plate（2）
It is made using ABS material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720885819.XU CN207096367U (en) | 2017-07-20 | 2017-07-20 | A kind of current leakage test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720885819.XU CN207096367U (en) | 2017-07-20 | 2017-07-20 | A kind of current leakage test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096367U true CN207096367U (en) | 2018-03-13 |
Family
ID=61545840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720885819.XU Expired - Fee Related CN207096367U (en) | 2017-07-20 | 2017-07-20 | A kind of current leakage test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096367U (en) |
-
2017
- 2017-07-20 CN CN201720885819.XU patent/CN207096367U/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: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |