CN205377283U - Safety electricity consumption protector - Google Patents
Safety electricity consumption protector Download PDFInfo
- Publication number
- CN205377283U CN205377283U CN201620136552.XU CN201620136552U CN205377283U CN 205377283 U CN205377283 U CN 205377283U CN 201620136552 U CN201620136552 U CN 201620136552U CN 205377283 U CN205377283 U CN 205377283U
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- CN
- China
- Prior art keywords
- load
- circuit
- electricity consumption
- stc15f104w
- safety
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- 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.)
- Expired - Fee Related
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides a safety electricity consumption protector, including load automated inspection circuit, load on -line measuring circuit, control implementation of circuit, a serial communication port, power frequency alternating current inserts the port and the load detects and insert the load on -line measuring circuit that is provided with 1N4007 and optoelectronic coupler component between the port, two window voltage comparater and STC15F104W constitution load automated inspection circuit that LM339 constitutes, the signal that STC15F104W detection window voltage comparater and opto -coupler ware spread, and drive actuating mechanism relay operation. The utility model discloses a safety electricity consumption protector carries out automated inspection to the load that inserts, carry out correctly aassessment to the load after, do not go up if there is safety failure's load actuating mechanism, if normal load just goes up the electricity, it has simple structure, stable performance, safe and reliable and low in production cost's advantage.
Description
Technical field
This utility model relates to a kind of safety electricity consumption protector to using 220V AC power frequency electricity.
Background technology
Traditional Electrical Safety protector, if electric leakage safeguard protection, overload short circuit safeguard protection are all restart safeguard protection behavior after accident classification occurs.The principle of existing electric leakage protector is after security incident occurs the person; unbalanced zero live wire is carried out sensing and produces induced voltage by the current detecting ring in protector; by amplification driving circuit, this induced voltage being amplified driving actuator action again, the precondition of this protection flow process is to have occurred that electric shock accidents.In like manner existing overload and short circuit protector, is also protect after overload and short circuit occur again.Although these safety measures greatly reduce the infringement of Electrical Safety accident, but cannot be real avoid Electrical Safety accident.
Summary of the invention
The purpose of this utility model is just to provide a kind of stable performance, safe and reliable safety electricity consumption protector.
Safety electricity consumption protector of the present utility model; including load automatic detection circuit, load on-line checking circuit, control to perform circuit; it is characterized in that; the load on-line checking circuit of 1N4007 and photoelectrical coupler composition it is provided with between industrial-frequency alternating current access interface and load detecting and access interface; the window voltage comparator of two LM339 compositions forms load automatic detection circuit with STC15F104W; the signal that STC15F104W detection window voltage comparator and optical coupler spread out of, and drive the actuator actuating of relay.
Safety electricity consumption protector of the present utility model; the load accessed is detected automatically; after load is carried out correctly assessment; if the load actuator that there is safety failure does not power on; if normal load just powers on, it has simple in construction, stable performance, the advantage that safe and reliable and production cost is low.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Detailed description of the invention
A kind of safety electricity consumption protector; P1 is industrial-frequency alternating current access interface; P2 is load detecting and access interface; two LM339 constitute window voltage comparator; 1N4007 and photoelectrical coupler composition load on-line checking circuit; STC15F104W detects the signal that voltage comparator comes with optocoupler, and drives actuator action.
When load accesses P2 mouth, load resistance forms potentiometer with divider resistance R1, both voltage division signal send into two LM339 window voltage comparators, when load exists fault, produced voltage is outside window comparator scope, comparator output low level, when load is normal, produced voltage is within window comparator scope, comparator output high level.STC15F104W only just drives relay in P3.2 mouth output low level after high level being detected, and obtaining of relay coil is electric, and the contact 2-3 of relay disconnects, and 2-1 closes, and accesses industrial-frequency alternating current to load, simultaneously switches off measure loop.
After load passes into industrial-frequency alternating current, the 1N4007 diode group accessing loop produces the voltage of about 2.1 volts, and this voltage drives photoelectrical coupler U1.Phototriode conducting within U1, P3.3 pin detects level；After load departs from after P2 mouth, 1N4007 does not have electric current to flow through, the loss of voltage of 2.1 volts, phototriode cut-off within U1, P3.3 detects high level, and STC15F104W exports high level at P3.2 mouth and disconnects relay K 1, K2, the contact 2-3 Guan Bi of relay, 2-1 disconnects, and P2 mouth departs from industrial-frequency alternating current and imports, and again accesses measure loop.
Claims (1)
1. a safety electricity consumption protector; including load automatic detection circuit, load on-line checking circuit, control to perform circuit; it is characterized in that: between industrial-frequency alternating current access interface and load detecting and access interface, be provided with the load on-line checking circuit of 1N4007 and photoelectrical coupler composition; the window voltage comparator of two LM339 compositions forms load automatic detection circuit with STC15F104W; the signal that STC15F104W detection window voltage comparator and optical coupler spread out of, and drive the actuator actuating of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136552.XU CN205377283U (en) | 2016-02-24 | 2016-02-24 | Safety electricity consumption protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136552.XU CN205377283U (en) | 2016-02-24 | 2016-02-24 | Safety electricity consumption protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377283U true CN205377283U (en) | 2016-07-06 |
Family
ID=56271842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620136552.XU Expired - Fee Related CN205377283U (en) | 2016-02-24 | 2016-02-24 | Safety electricity consumption protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205377283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579631A (en) * | 2020-06-11 | 2020-08-25 | 中国地质大学（武汉） | Interface conversion circuit of plasma mass spectrometer driven by laser ablation system |
-
2016
- 2016-02-24 CN CN201620136552.XU patent/CN205377283U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579631A (en) * | 2020-06-11 | 2020-08-25 | 中国地质大学（武汉） | Interface conversion circuit of plasma mass spectrometer driven by laser ablation system |
| CN111579631B (en) * | 2020-06-11 | 2021-04-27 | 中国地质大学（武汉） | Interface conversion circuit of plasma mass spectrometer driven by laser ablation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20170224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |