CN106707067A - Universal security detection system for electric appliances - Google Patents
Universal security detection system for electric appliances Download PDFInfo
- Publication number
- CN106707067A CN106707067A CN201710067827.8A CN201710067827A CN106707067A CN 106707067 A CN106707067 A CN 106707067A CN 201710067827 A CN201710067827 A CN 201710067827A CN 106707067 A CN106707067 A CN 106707067A
- Authority
- CN
- China
- Prior art keywords
- microprocessor
- gnd
- resistance
- detecting system
- resistors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a universal security detection system for electric appliances. The universal security detection system comprises at least two groups of sampling circuits, a detection circuit and a processing circuit, wherein the at least two groups of sampling circuits are electrically connected with an input end; each sampling circuit comprises at least two resistors which are connected in series; the detection circuit comprises a rectifier diode and a capacitor; the processing circuit comprises a microprocessor; sampling resistors are electrically connected with GND-CHK1 and GND-CHK2 networks of the microprocessor through the rectifier diode and the resistors, which are connected in series; the sampling resistors are connected with the capacitor in parallel through the rectifier diode; the rectifier diode is connected between input resistors which are connected in series and the sampling resistors; the rectifier diode is connected with the microprocessor through the resistor in series; the capacitor is connected with the GND-CHK1 and GND-CHK2 networks of the microprocessor through the resistors; and the microprocessor is electrically connected with a touch screen. The universal security detection system can be used for grounding detection of sanitary appliances, kitchen appliances, household appliances and industrial electrical equipment.
Description
Technical field
The present invention relates to Electrical Testing system, more particularly to general electronic corporation Electrical Safety detecting system.
Background technology
A kind of insulaion resistance based on programmable power supply, grounding resistance comprehensive tester are disclosed in the prior art, while tool
Two kinds of test functions of standby insulaion resistance and earth resistance, the working condition that software exchange instrument is passed through by microcontroller, using journey
Control power supply output high direct voltage or AC great current are used as testing source.
The tester is by programmable power supply, signal acquisition and A/D conversion, microcontroller, keyboard and display electrical equipment, alarm and controls
The part of circuit processed five is constituted, and the microcontroller megger test state or is connect by the working condition of software exchange instrument
Ground resistance test state, and programmable power supply output high direct voltage or the AC great current are controlled according to Instrument working state
Used as the test power supply for treating electricity measurer, being input into microcontroller by signal acquisition and A/D change-over circuits carries out closed-loop control and electricity
Resistance measurement.
Alternating current turns into dc source by rectifying and wave-filtering, and microcontroller produces SPWM ripples by software mode, utilizes
IGBT special driving chip EXB841 arrays drive LGBT；Through after the low pass filter that inductance and electric capacity are constituted, exporting alternating current
Source, by step-up transformer and rectifying and wave-filtering link, the DC high-voltage source needed for output megger test is flowed up by being depressured
Ac current source needed for transformer output earth resistance, microcontroller can be exported by adjusting the dutycycle of SPWM ripples
Different voltage；Sampled voltage or current signal from output feed back to microcontroller to sample circuit simultaneously, by electric with setting
Pressure or current value be compared after adjust output voltage, to meet system the need for.
Said apparatus structure is complicated, and energy consumption is big, and restricted application, high cost, intelligence degree is low, it is impossible to meet current
Social enviroment protection, the requirement of quick test.
The content of the invention
Defect it is an object of the invention to overcome prior art, there is provided a kind of simple for structure, reasonable, compatibility is good, can
The general electronic corporation safety detecting system that touch-control, energy consumption are small, environmentally friendly, test is quick, intelligence degree is high.
The purpose of the present invention is achieved through the following technical solutions：
General electronic corporation safety detecting system, including at least two groups sample circuits electrically connected with input, detection circuit and
Process circuit, the sample circuit include at least two concatenation resistance, the detection circuit include rectification commutation diode and
Electric capacity, the process circuit includes electric capacity and microprocessor, rectification commutation diode and electricity that the sampling resistor passes through concatenation
Resistance and the electrical connection of microprocessor GND_CHK1, GND_CHK2 network, the sampling resistor is in parallel with electric capacity, sampling resistor also with it is whole
Stream diode series connection.
The commutation diode is connected between the input resistance of concatenation and sampling resistor.
The rectification diode is concatenated by resistance with microprocessor.
The electric capacity is by resistance and microprocessor GND_CHK1, GND_CHK2 network connection.
The microprocessor is electrically connected with touch-screen.
The present invention can reach following beneficial effect after using above-mentioned technical proposal：
1st, it is initiative.The present invention can send out ground connection prompt message with touch-screen word (being not limited to touch-screen).Can use
Microcontroller controls the running of machine according to Grounding.
2nd, energy-conservation, efficiently.The highly integrated integration of hardware of the present invention, it is cost-effective, eliminate connection equipment and regulation and control set
The cumbersome item such as standby, the problem that it also avoid compatible to be used between equipment.
3rd, it is full-featured.The present invention can be used for bathroom electrical equipment, kitchen appliance, household electrical appliance, the ground connection of industrial electricity apparatus
Safety detection, gathers various functional modes, civil power input resistance of the connection not less than 700,000 ohm.2 sampling electricity of input
Resistance is not more than 200,000 ohm.2 signal feeding microcontroller identifications of sampling resistor.Can be with rectification, it is also possible to not rectification.Connect
Ground terminal is 2 sampling resistor junctions.
4th, instant invention overcomes the defect of prior art, design science, rationally；Modern design, uniqueness；Meet modern society
Fashion, brief, practical requirement.
5th, conformability is strong.The present invention is applied widely, and performance is good, saves space, convenient to use, and reaches energy-conservation, environmentally friendly
Effect.
6th, cost performance is high.Scientific structure of the present invention, rationally, it is succinct, can all applying for various fields is added, with wide
Economic benefit.
7th, humanization designing.The present invention caters to modern Man's Demands, adapts to the life of rhythm high；Design form variation,
User can be selected according to the need for oneself.The research and development of product are all the time index with user terminal number one, in product
Humanistic care has been fully demonstrated in design concept.
8th, it is workable.Present invention collection hardware and the integration of software integration, need for client provides intelligentized design
Ask, be that enterprise increases the output value and added value, improve profit margin.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention：
Referring to Fig. 1, Fig. 1 is structural representation of the invention.In Fig. 1, general electronic corporation safety detecting system, including with it is defeated
Enter at least two groups sample circuits of end electrical connection, detect circuit and process circuit, the sample circuit includes at least two concatenations
Resistance R11, R21 (R12, R22), the detection circuit includes commutation diode D1, D2, electric capacity C14, C15, the treatment electricity
Road include microprocessor, described sampling resistor R21, R22 by concatenate commutation diode D1, D2 and resistance R18, R19 with it is micro-
Processor is electrically connected, and described sampling resistor R21, R22 are in parallel with electric capacity C14, C15 by diode.
Described commutation diode D1, D2 are connected between input resistance R11, R12 of concatenation and sampling resistor R21, R22.
Described rectification diode D1, D2 are concatenated by resistance R18, R19 with microprocessor.
Described electric capacity C14, C15 pass through resistance R18, R19 and microprocessor GND_CHK1, GND_CHK2 network connection.
The microprocessor is electrically connected with touch-screen.
The present invention separates the input of bridge circuit, becomes the input of 3 ends, using live wire and the neutral conductor current potential over the ground not
Together, by diode rectification, current potential difference is become DC level by capacitor filtering.The presence or absence of ground connection is detected with microprocessor.
To reduce Leakage Current, 2 input resistance choosing values are more than 1,000,000 ohm.
Other technologies of the invention can use prior art.
Highly preferred embodiment of the present invention has been illustrated, one of ordinary skill in the art according to the present invention make it is further
Expansion each falls within protection scope of the present invention.
Claims (5)
1. general electronic corporation safety detecting system, it is characterised in that：The detecting system includes electrically connected with input at least two
Group sample circuit, detects circuit and process circuit, and the sample circuit includes the resistance of at least two concatenations, the detection circuit
Including commutation diode and electric capacity, the process circuit includes microprocessor, the pole of rectification two that the sampling resistor passes through concatenation
Pipe and resistance are electrically connected with microprocessor GND_CHK1, GND_CHK2 network, and the sampling resistor is by commutation diode and electricity
Hold in parallel.
2. general electronic corporation safety detecting system according to claim 1, it is characterised in that：The commutation diode is connected to string
Between the input resistance and sampling resistor that connect.
3. general electronic corporation safety detecting system according to claim 1 and 2, it is characterised in that：The rectification diode leads to
Resistance is crossed to be concatenated with microprocessor.
4. general electronic corporation safety detecting system according to claim 1, it is characterised in that：The electric capacity by resistance with it is micro-
Processor GND_CHK1, GND_CHK2 network connection.
5. according to any described general electronic corporation safety detecting system in claim 1,3 or 4, it is characterised in that：The microprocessor
Device is electrically connected with touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067827.8A CN106707067A (en) | 2017-02-07 | 2017-02-07 | Universal security detection system for electric appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067827.8A CN106707067A (en) | 2017-02-07 | 2017-02-07 | Universal security detection system for electric appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707067A true CN106707067A (en) | 2017-05-24 |
Family
ID=58909259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067827.8A Pending CN106707067A (en) | 2017-02-07 | 2017-02-07 | Universal security detection system for electric appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707067A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596494A (en) * | 2019-09-25 | 2019-12-20 | 中国标准化研究院 | Automatic detection device and detection method for electrical appliance safety |
| CN110825541A (en) * | 2019-11-30 | 2020-02-21 | 东莞市诺尔检测科技有限公司 | Safety detection data processing system for household appliances |
-
2017
- 2017-02-07 CN CN201710067827.8A patent/CN106707067A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596494A (en) * | 2019-09-25 | 2019-12-20 | 中国标准化研究院 | Automatic detection device and detection method for electrical appliance safety |
| CN110825541A (en) * | 2019-11-30 | 2020-02-21 | 东莞市诺尔检测科技有限公司 | Safety detection data processing system for household appliances |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |