CN2891430Y - Full-automatic power mains over-voltage protector - Google Patents
Full-automatic power mains over-voltage protector Download PDFInfo
- Publication number
- CN2891430Y CN2891430Y CN 200620109368 CN200620109368U CN2891430Y CN 2891430 Y CN2891430 Y CN 2891430Y CN 200620109368 CN200620109368 CN 200620109368 CN 200620109368 U CN200620109368 U CN 200620109368U CN 2891430 Y CN2891430 Y CN 2891430Y
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- resistance
- controllable silicon
- voltage
- signal processor
- silicon scr
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Abstract
The utility model relates to a fully automated city power over-voltage protector belonging to an over-voltage protector, which is to offer an over-voltage protector of automatic power off and restoration power supply. The utility model comprises a voltage detector, a signal processor and a relay, wherein the voltage detector (1) comprises a SCR <1>, an emitting D <1> and an emitting D <2>, a R <3>, a C <1>, R <4-7>, a rectifier D <3>, DZ <1> and photosensitive R <2> and R <1>, the signal processor (2) comprises an electric bridge comprising a D <4-7>, SCR <2>, DZ <2>, DZ <9> and C <2>, the voltage detector (1) is connected with the signal processor (2) via the photosensitive R <1> and is connected with the city power via rectifier D <3>, the signal processor (2) is connected with the city power via the relay and the contact between the D <6> and D <7>. The utility model has the advantages of high precision voltage protection, rapid and sensitive reaction, complement usage with air switch and power socket.
Description
Technical field: the utility model relates to a kind of overvoltage protector, relates in particular to a kind of single-phase alternating current overvoltage protector.
Background technology: at present, the accident that causes line voltage rising suddenly to burn out electric equipment owing to a variety of causes happens occasionally, and for this reason, voltage protection has been installed in some high-grade accurate electric equipment inside.But this built-in voltage protection can only be applicable to this electrical equipment, and can not be fit to other electrical equipment, and the utilization scope is less; In addition, built-in voltage protection also can not realized full-automatic overvoltage protection, though that is: can cut off the electricity supply, provide protection when overtension, when voltage recovers just often can not automatically reset power supply, must pass through manual reset, and is very inconvenient.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the utility model aim to provide a kind ofly when overtension, can cut off the power supply automatically, full-automatic mains supply over-voltage protector that voltage just often can automatically reset power supply.
To achieve these goals, the utility model by the following technical solutions: it is made of voltage detector, signal processor and relay; Voltage detector is by controllable silicon SCR
1, be serially connected in the light-emitting diode D of this controllable silicon anode
1, D
2With current-limiting resistance R
3, be connected this controllable silicon negative electrode and the capacitor C of control between the utmost point
1, be connected on this controllable silicon negative electrode and current-limiting resistance R
3Between resistance R
4-7, be connected on current-limiting resistance R
3And resistance R
4Between rectifier diode D
3, be connected in parallel on resistance R
5Two ends and the photo resistance R that installs near this light-emitting diode
2, an end is connected resistance R
5And R
6Between and the other end and controllable silicon SCR
1The voltage stabilizing didoe DZ1 that connects of the control utmost point and near light-emitting diode D
1The photo resistance R that installs
1Constitute; Signal processor is by diode D
4-7The electric bridge of forming, be connected on the another controllable silicon SCR between this electric bridge both positive and negative polarity
2, pass through resistance R
8With controllable silicon SCR
2Voltage stabilizing didoe DZ in parallel
2, be connected in parallel on controllable silicon SCR simultaneously
2Resistance R between the control utmost point and the negative electrode
9And capacitor C
2Constitute; Photo resistance R
1An end and controllable silicon SCR
2The control utmost point connect, the other end is connected resistance R
8With voltage stabilizing didoe DZ
2Between, voltage detector is by rectifier diode D
3, controllable silicon SCR
1Negative electrode be electrically connected with the city, signal processor is by being connected diode D
4, D
5Between relay and D
6, D
7Between tie point be electrically connected with the city.
Compared with the prior art, the utility model has been realized the Automatic Control of overvoltage protection process effectively owing to adopt photoelectricity coupling technology and oscillating circuit organically to combine when having simplified circuit structure greatly; Voltage protection precision of the present utility model can be controlled in 1 volt, be swift in response except having, the advantage such as sensitivity, can also with supporting uses such as air switch, supply socket.
Description of drawings:
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is a fundamental diagram of the present utility model.
Among the figure: voltage detector 1 signal processor 2 relays 3
Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
In Fig. 1, voltage detector 1 is by a unidirectional low power controllable silicon SCR
1, be serially connected in the light-emitting diode D of this controllable silicon anode
1, D
2With current-limiting resistance R
3, be connected this controllable silicon negative electrode and the capacitor C of control between the utmost point
1, be connected on this controllable silicon negative electrode and current-limiting resistance R
3Between resistance R
4-7, be connected on current-limiting resistance R
3And resistance R
4Between rectifier diode D
3, be connected in parallel on resistance R
5Two ends and the photo resistance R that installs near this light-emitting diode
2, an end is connected resistance R
5And R
6Between and the other end and controllable silicon SCR
1The voltage stabilizing didoe DZ that connects of the control utmost point
1, and near light-emitting diode D
1The photo resistance R that installs
1Constitute.
Wherein, light-emitting diode D
1, D
2With current-limiting resistance R
3Be controllable silicon SCR
1Load, light-emitting diode D
1With photo resistance R
1, R
2Be optical coupling relation, light-emitting diode D
2Mainly play the indicator light effect.Rectifier diode D
3Be controllable silicon SCR
1Half-wave power supply, capacitor C
1Play anti-interference effect, play the resistance R of voltage monitoring effect
4-7Whether detecting voltage reaches predetermined protection voltage in good time.Voltage stabilizing didoe DZ when civil power reaches predetermined protection voltage
1Conducting, thus controllable silicon SCR triggered
1So conducting is light-emitting diode D
1Luminous, photo resistance R
1, R
1Resistance diminish; Photo resistance R
1For the switching of the signal processor 2 of back provides condition, and photo resistance R
1Be controllable silicon SCR
1Conducting play positive feedback, it is swift in motion.Because voltage monitoring resistance R
4-7In any one resistance change and all can cause resistance R
5, R
6Between the current potential of tie point change, therefore regulate resistance R
6Resistance resistance R can be set
5, R
6Between the current potential of tie point.
Photo resistance R
1An end and controllable silicon SCR
2The control utmost point connect, the other end is connected resistance R
8With voltage stabilizing didoe DZ
2Between, voltage detector 1 is by rectifier diode D
3, controllable silicon SCR
1Negative electrode be electrically connected with the city, signal processor 2 is by being connected diode D
4, D
5Between relay 3 and D
6, D
7Between tie point be electrically connected with the city.
As shown in Figure 2: be connected in parallel on the two ends of voltage detector 1 after signal processor 2, relay 3 series connection, insert civil power then.When mains supply over-voltage, voltage detector 1 sends signal to signal processor 2 and makes signal processor 2 conductings, and the normally-closed contact of relay 3 disconnects, so stop power supply; When civil power was lower than the voltage of setting, voltage detector 1 sends signal to signal processor 2 ended signal processor 2, and so the normally-closed contact closure of relay 3 is automatic recovery of power supply.
Claims (1)
1. a full-automatic mains supply over-voltage protector is made of voltage detector, signal processor and relay; It is characterized in that: voltage detector (1) is by controllable silicon SCR
1, be serially connected in the light-emitting diode D of this controllable silicon anode
1, D
2With current-limiting resistance R
3, be connected this controllable silicon negative electrode and the capacitor C of control between the utmost point
1, be connected on this controllable silicon negative electrode and current-limiting resistance R
3Between resistance R
4-7, be connected on current-limiting resistance R
3And resistance R
4Between rectifier diode D
3, be connected in parallel on resistance R
5Two ends and the photo resistance R that installs near this light-emitting diode
2, an end is connected resistance R
5And R
6Between and the other end and controllable silicon SCR
1The voltage stabilizing didoe DZ that connects of the control utmost point
1, and near light-emitting diode D
1The photo resistance R that installs
1Constitute; Signal processor (2) is by diode D
4-7The electric bridge of forming, be connected on the another controllable silicon SCR between this electric bridge both positive and negative polarity
2, pass through resistance R
8With controllable silicon SCR
2Voltage stabilizing didoe DZ in parallel
2, be connected in parallel on controllable silicon SCR simultaneously
2Resistance R between the control utmost point and the negative electrode
9And capacitor C
2Constitute; Photo resistance R
1An end and controllable silicon SCR
2The control utmost point connect, the other end is connected resistance R
8With voltage stabilizing didoe DZ
2Between, voltage detector (1) is by rectifier diode D
3, controllable silicon SCR
1Negative electrode be electrically connected with the city, signal processor (2) is by being connected diode D
4, D
5Between relay (3) and D
6, D
7Between tie point be electrically connected with the city.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109368 CN2891430Y (en) | 2006-04-24 | 2006-04-24 | Full-automatic power mains over-voltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109368 CN2891430Y (en) | 2006-04-24 | 2006-04-24 | Full-automatic power mains over-voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891430Y true CN2891430Y (en) | 2007-04-18 |
Family
ID=38022091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620109368 Expired - Fee Related CN2891430Y (en) | 2006-04-24 | 2006-04-24 | Full-automatic power mains over-voltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891430Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888081A (en) * | 2010-04-28 | 2010-11-17 | 周玉林 | Mains supply over-voltage automatic power-off protection device |
-
2006
- 2006-04-24 CN CN 200620109368 patent/CN2891430Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888081A (en) * | 2010-04-28 | 2010-11-17 | 周玉林 | Mains supply over-voltage automatic power-off protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PUTIAN CITY QINGSHENG ELECTRONIC RUBBER CO., LTD. Free format text: FORMER OWNER: ZENG YINGMU Effective date: 20070629 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070629 Address after: 562400 Guizhou city of Xingyi Province, Wu Sha Zhen Qing Sheng occupation skill training school (old school) Patentee after: Putian Qingsheng Electronic Rubber & Plastic Co., Ltd. Address before: 9 2 units, 562400 government quarters, 4 lane, manhole street, Xingyi, Guizhou Patentee before: Zeng Yingmu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20100424 |