CN209460354U - A kind of proof voltage tester - Google Patents
A kind of proof voltage tester Download PDFInfo
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- CN209460354U CN209460354U CN201822021042.XU CN201822021042U CN209460354U CN 209460354 U CN209460354 U CN 209460354U CN 201822021042 U CN201822021042 U CN 201822021042U CN 209460354 U CN209460354 U CN 209460354U
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Abstract
The utility model discloses a kind of proof voltage testers, including control module, it is connected to the control module test function module, timing module, voltage regulating module and alarm module, the high-voltage power supply being connected with test function module and voltage regulating module, the time showing module being connected with timing module, the leakage current display module being connected with test function module, and the voltage display module being connected with voltage regulating module；Wherein, the test function module is also connected with voltage regulating module.By above-mentioned design, the utility model design is simple, structurally reasonable, has the characteristics that high reliability, high durability, while by setting timing module, can be preset to testing time progress, can be timed test, enrich the function of tester.Therefore, it is suitable for popularization and application.
Description
Technical field
The utility model relates to voltage detecting technical fields, specifically, being to be related to a kind of proof voltage tester.
Background technique
Proof voltage tester is the instrument for measuring dieletric strength, it can intuitive, accurate, quickly and reliably test each
The electrical safety performances indexs such as breakdown voltage, the leakage current of kind measurand, and can be used as tributary high-voltage power supply and be used to test member
Device and overall performance.Proof voltage tester, pressure-resistant AC is from 0-5KV, and leakage current AC is from 0-20mA.Be suitble to various household electrical appliance,
Power supply line, cable, transformer connecting terminal, high pressure bakelite electric appliance, switch, power outlet, motor, dishwasher, dish-washing machine, from
It is heart dewaterer, micro-wave oven, electric oven, electric chafing dish, electric cooker, television set, electric fan, medical treatment, chemical industry, electronic instrument and meter, whole
The test of the safety pressure resistance and leakage current of machine etc. and strong power system, while being also R&D units technical supervision department can not
The voltage-resisting test apparatus lacked.
It is high pressure resistant, power is big, stability is basic performance that proof voltage tester should have well, however, existing resistance to
Voltage tester is since there are problems for system structure, and not only troublesome in poeration, working efficiency is low, and high pressure resistant, power is not achieved
Greatly, the good basic demand of stability.And existing proof voltage tester is required to terminate to test manually in test, it is fixed not have
When test function.Therefore, it is badly in need of improving existing voltage tester.
Utility model content
The purpose of this utility model is to provide a kind of proof voltage tester, to meet, proof voltage tester is high pressure resistant, function
The basic demand that rate is big, stability is good, and solve the problems, such as that existing proof voltage tester test function is single.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of proof voltage tester, including control module are connected to the control module test function module, timing mould
Block, voltage regulating module and alarm module, the high-voltage power supply being connected with test function module and voltage regulating module are connected with timing module
Time showing module, the leakage current display module being connected with test function module, and the voltage being connected with voltage regulating module are shown
Module；Wherein, the test function module is also connected with voltage regulating module.
Further, the voltage regulating module includes power supply control relay, the pressure regulator being connected with power supply control relay,
The H.V. step up transformer being connected with pressure regulator, the high voltage output terminal being connected with H.V. step up transformer and high-pressure sampling electricity
Resistance, the voltage sampling signal bleeder circuit being connected with high-voltage sampling resistance, and be connected with voltage sampling signal bleeder circuit
Voltage sampling signal amplifier；Wherein, the power supply control relay is connected with control circuit and high-voltage power supply, voltage sampling signal
Amplifier is connected with voltage display module.
Further, the control module includes singlechip control chip, the control electricity being connected with singlechip control chip
Road, and the reset built-up circuit being connected with control circuit；Wherein, singlechip control chip is connected with timing module, control electricity
Road is connected with alarm module, and control circuit and singlechip control chip are connected with test function module.
Still further, the test function module includes leakage current test loop end, with leakage current test loop end phase
Current strength selection circuit even, the leakage current sampled signal amplifier and alarm current being connected with current strength selection circuit
Initialization circuit, the current comparison circuit being connected with leakage current sampled signal amplifier and current setting circuit；Wherein, leakage current
Sampled signal amplifier is connected with leakage current display module, and current comparison circuit is connected with control module.
Preferably, the time showing module, leakage current display module and voltage display module are all made of LED number
Pipe.
Preferably, the alarm module uses combined aural and visual alarm.
Compared with prior art, the utility model has the following beneficial effects:
(1) output is adjusted to output voltage by pressure regulator in the proof voltage tester of the utility model, has height can
, can be preset to testing time progress by the way that timing module is arranged by property, high durability feature, test can be timed；Work as test
When time is set as " 0.0s ", enters follow-on test after tester starting, just stop test after user stops manually；Two kinds
The combination of test mode enriches the test function of tester.
(2) the utility model shows testing time, voltage, electric current using the LED charactrons of high brightness, can display real-time and hits
Current value and voltage value are worn, convenient for test observation.
(3) the utility model is by setting alarm current initialization circuit, the preset value for the breakdown circuit that can be manually adjusted,
To meet the breakdown current requirement of different measured objects, when leakage current is more than setting alarm current, instrument can issue acousto-optic immediately
Alarm, and output high pressure is automatically cut off, achieve the effect that protect tester.
Detailed description of the invention
Fig. 1 is Tthe utility model system block diagram.
Fig. 2 is the utility model test function modular system block diagram.
Fig. 3 is the utility model control module system block diagram.
Fig. 4 is the utility model voltage regulating module system block diagram.
Specific embodiment
The utility model is described in further detail with embodiment for explanation with reference to the accompanying drawing, and the mode of the utility model includes
But it is not limited only to following embodiment.
Embodiment
As shown in Figs 1-4, a kind of proof voltage tester disclosed by the utility model, including control module, with control mould
Block connected test function module, timing module, voltage regulating module and alarm module, it is homogeneous with test function module and voltage regulating module
High-voltage power supply even, the time showing module being connected with timing module, the leakage current display module being connected with test function module, with
And the voltage display module being connected with voltage regulating module；Wherein, the test function module is also connected with voltage regulating module, and high-voltage power supply is also
For being powered to system.
The test function module includes leakage current test loop end, the current strength being connected with leakage current test loop end
Selection circuit, the leakage current sampled signal amplifier and alarm current initialization circuit being connected with current strength selection circuit, with
The current comparison circuit that leakage current sampled signal amplifier is connected with current setting circuit, measurement carry out alarm current when starting
Setting, and corresponding electric current gear, the test electric current of leakage current test loop end input are switched to by current strength selection circuit
Current signal is amplified through leakage current sampled signal amplifier, amplified current signal is carried out into overcurrent comparison circuit
Judge, compare, and through control circuit judge whether issue alarm signal and whether cutoff high export；On the other hand, leakage current
Sampled signal amplifier is connected with leakage current display module, and current value real-time display is come out.
The control module includes singlechip control chip, the control circuit being connected with singlechip control chip, Yi Jiyu
The connected reset built-up circuit of control circuit, by resetting the external starting of built-up circuit, reset button realizes tester
Starting and test in reset operation；Wherein, singlechip control chip is connected with timing module, control circuit and alarm module
It is connected, control circuit and singlechip control chip are connected with test function module；Wherein, the type of the singlechip control chip
Number be STC15W401AS.
The voltage regulating module includes power supply control relay, the pressure regulator being connected with power supply control relay, with pressure regulator
Connected H.V. step up transformer, the high voltage output terminal and high-voltage sampling resistance being connected with H.V. step up transformer, with height
The voltage sampling signal bleeder circuit for pressing sample resistance connected, and the voltage sampling being connected with voltage sampling signal bleeder circuit
Signal amplifier.Power supply control relay is powered pressure regulator for controlling, and pressure regulator adjusts High voltage output size, through height
High voltage output is carried out by high voltage output terminal after pressure step-up transformer.Wherein, the power supply control relay and control circuit
It is connected with high-voltage power supply, voltage sampling signal amplifier is connected with voltage display module, carries out real-time display to voltage value.
Preferably, the time showing module, leakage current display module and voltage display module are all made of LED number
Pipe.
Preferably, the alarm module uses combined aural and visual alarm.
The utility model is the improvement based on hardware architecture, and used module and functional circuit are those skilled in the art
Known more mature technology, the content reasonable employment that those skilled in the art can record according to specification, this is practical
It is novel that its specific configuration and circuit connection are repeated no more.
The test philosophy of the utility model is as follows:
220V alternating current is accessed in high-voltage power supply input terminal first, and body to be measured is accessed into leakage current loop-around test end.Booting
When test, start button is pressed, so that equipment is entered state to be detected by resetting built-up circuit, is tested by timing module
Time setting, if being set as " 0.0s ", instrument enters manual test state, and leakage current display module shows measured body two respectively
The leakage current values of polar end and shell after the completion of test, carry out reset operation manually；It is logical first when being timed test
The timing module setting testing time is spent, after the completion of the testing time, instrument automatically cuts off test job voltage；In the process of test
In, measured body is under test current effect, if there are leakage current values higher than setting electric current, instrument can also automatically cut off test
Operating voltage.
By above-mentioned design, the proof voltage tester of the utility model is adjusted output voltage by pressure regulator defeated
Out, have the characteristics that high reliability, high durability, by the way that timing module is arranged, in conjunction with control module, the testing time can be carried out pre-
It sets, test can be timed；When being set as " 0.0s " between when tested, enter follow-on test after tester starting, until user
Just stop test after stopping manually；The combination of two kinds of test modes enriches the test function of tester.Therefore, the utility model
With substantive features and progress.
Above-described embodiment is only one of preferred embodiments of the present invention, should not be taken to limit the utility model
Protection scope, as long as the utility model body design thought and mentally make have no the change of essential meaning or profit
Color, it is solved the technical issues of it is still consistent with the utility model, the protection scope of the utility model should all be included in
Within.
Claims (5)
1. a kind of proof voltage tester, which is characterized in that including control module, be connected to the control module test function mould
Block, timing module, voltage regulating module and alarm module, the high-voltage power supply being connected with test function module and voltage regulating module, with timing
The connected time showing module of module, the leakage current display module being connected with test function module, and be connected with voltage regulating module
Voltage display module；Wherein, the test function module is also connected with voltage regulating module；
The voltage regulating module includes power supply control relay, and the pressure regulator being connected with power supply control relay is connected with pressure regulator
H.V. step up transformer, the high voltage output terminal and high-voltage sampling resistance being connected with H.V. step up transformer take with high pressure
The connected voltage sampling signal bleeder circuit of sample resistance, and the voltage sampling signal being connected with voltage sampling signal bleeder circuit
Amplifier；Wherein, the power supply control relay is connected with control circuit and high-voltage power supply, voltage sampling signal amplifier and voltage
Display module is connected.
2. a kind of proof voltage tester according to claim 1, which is characterized in that the control module includes single-chip microcontroller control
Coremaking piece, the control circuit being connected with singlechip control chip, and the reset built-up circuit being connected with control circuit；Wherein,
Singlechip control chip is connected with timing module, and control circuit is connected with alarm module, control circuit and singlechip control chip
It is connected with test function module.
3. a kind of proof voltage tester according to claim 2, which is characterized in that the test function module include with to
The connected leakage current test loop end of body is surveyed, the current strength selection circuit being connected with leakage current test loop end is strong with electric current
Selection circuit connected leakage current sampled signal amplifier and alarm current initialization circuit are spent, with leakage current sampled signal amplifier
The current comparison circuit being connected with current setting circuit；Wherein, leakage current sampled signal amplifier and leakage current display module
It is connected, current comparison circuit is connected with control module.
4. a kind of proof voltage tester according to claim 3, which is characterized in that the time showing module, leakage current
Display module and voltage display module are all made of LED charactrons.
5. a kind of proof voltage tester according to claim 4, which is characterized in that the alarm module uses sound-light alarm
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822021042.XU CN209460354U (en) | 2018-12-04 | 2018-12-04 | A kind of proof voltage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822021042.XU CN209460354U (en) | 2018-12-04 | 2018-12-04 | A kind of proof voltage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209460354U true CN209460354U (en) | 2019-10-01 |
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ID=68039708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822021042.XU Active CN209460354U (en) | 2018-12-04 | 2018-12-04 | A kind of proof voltage tester |
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| Country | Link |
|---|---|
| CN (1) | CN209460354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791321A (en) * | 2021-09-07 | 2021-12-14 | 湖南润伟智能机器有限公司 | Novel pressure equipment of integrated form |
-
2018
- 2018-12-04 CN CN201822021042.XU patent/CN209460354U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791321A (en) * | 2021-09-07 | 2021-12-14 | 湖南润伟智能机器有限公司 | Novel pressure equipment of integrated form |
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