CN202797875U - Commercial power over-voltage and under-voltage automatic protector - Google Patents
Commercial power over-voltage and under-voltage automatic protector Download PDFInfo
- Publication number
- CN202797875U CN202797875U CN 201220320058 CN201220320058U CN202797875U CN 202797875 U CN202797875 U CN 202797875U CN 201220320058 CN201220320058 CN 201220320058 CN 201220320058 U CN201220320058 U CN 201220320058U CN 202797875 U CN202797875 U CN 202797875U
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- potentiometer
- relay
- diode
- resistor
- voltage
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- Expired - Fee Related
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Abstract
The utility model discloses a commercial power over-voltage and under-voltage automatic protector, which comprises an alternating current power supply, a power supply circuit, a first relay, a second relay, a first silicon controlled rectifier, a second silicon controlled rectifier, a first resistor, a second resistor, a first potentiometer, a second potentiometer, a first diode, a second diode, a capacitor, a reset control button and a socket. According to the technical scheme of the utility model, when the mains voltage is not stable, the automatic protector provides a protection circuit for protecting electric appliances and has the advantages of simple structure, stable performance and convenient installation and debugging.
Description
Technical field
The utility model relates to a kind of voltage automatic protector, relates in particular to a kind of civil power overvoltage and under voltage automatic protector.
Background technology
At present, because city's voltage is unstable, surpass sometimes 220V voltage in a lot of situations, be lower than sometimes 220V voltage, so just cause household electrical appliance, perhaps high-power voltage is burned owing to spread of voltage causes electrical appliance.
Summary of the invention
The purpose of this utility model provides a kind of civil power overvoltage and under voltage automatic protector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises AC power, power circuit, the first relay, the second relay, the first controllable silicon, the second controllable silicon, the first resistor, the second resistor, the first potentiometer, the second potentiometer, the first diode, the second diode, capacitor, control button and socket reset, the first end of described the first resistor respectively with the cathode output end of described power circuit, the negative pole of described the first diode, the first end of described the first relay, the first end of described the second relay, the negative pole of described the second diode be connected the first end of capacitor and connect, the second end of described the first resistor respectively with the first end of described the second resistor, the first end of described the first potentiometer, the sliding end of described the first potentiometer be connected the first end of the second potentiometer and connect, the second end of described the first potentiometer is connected with described the first silicon controlled control end, the second end of described the first relay respectively with the positive pole of described the first diode, described the first silicon controlled is anodal to be connected, described the first silicon controlled negative pole is connected with the first end of described forced resetting button, the second end of described the second potentiometer respectively with the sliding end of described the second potentiometer be connected the second silicon controlled control end and be connected, the second end of described the second relay respectively with the positive pole of described the second diode, the second end of described capacitor be connected that the second silicon controlled is anodal to be connected, described the second silicon controlled negative pole respectively with the second end of described forced resetting button, the second end of described the second resistor be connected the cathode output end of power circuit and connect, in parallel with described AC power behind the normal open switch of described the first relay of described socket series connection and the normal open switch of the second relay.
The beneficial effects of the utility model are:
The utility model provides a kind of protective circuit that can protect electrical appliance in the unsettled situation of city's voltage; The utlity model has that circuit structure is simple, stable performance and Installation and Debugging advantage easily.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises AC power, power circuit, the first relay J 1, the second relay K 2, the first controllable silicon VT1, the second controllable silicon VT2, the first resistor R1, the second resistor R2, the first potentiometer RP1, the second potentiometer RP2, the first diode VD1, the second diode VD2, capacitor C, control button S and socket XS reset, the first end of the first resistor R1 respectively with the cathode output end of power circuit, the negative pole of the first diode VD1, the first end of the first relay K 1, the first end of the second relay K 2, the negative pole of the second diode VD2 is connected first end and is connected with capacitor C, the second end of the first resistor R1 respectively with the first end of the second resistor R2, the first end of the first potentiometer RP1, the sliding end of the first potentiometer RP1 be connected the first end of potentiometer RP2 and connect, the second end of the first potentiometer RP1 is connected with the control end of the first controllable silicon VT1, the second end of the first relay K 1 respectively with the positive pole of the first diode VD1, the positive pole of the first controllable silicon VT1 connects, the negative pole of the first controllable silicon VT1 is connected with the first end of forced resetting button S, the second end of the second potentiometer RP2 respectively with the sliding end of the second potentiometer RP2 be connected the control end of controllable silicon VT2 and be connected, the second end of the second relay K 2 respectively with the positive pole of the second diode VD2, the second end of capacitor C be connected the positive pole of controllable silicon VT2 and connect, the negative pole of the second controllable silicon VT2 respectively with the second end of forced resetting button S, the second end of the second resistor R2 is connected cathode output end and is connected with power circuit, socket XS connects in parallel with AC power behind the normal open switch K2-1 of the normal open switch K1-1 of described the first relay and the second relay.
Claims (1)
1. a civil power overvoltage and under voltage automatic protector; it is characterized in that: comprise AC power; power circuit; the first relay; the second relay; the first controllable silicon; the second controllable silicon; the first resistor; the second resistor; the first potentiometer; the second potentiometer; the first diode; the second diode; capacitor; control button and socket reset; the first end of described the first resistor respectively with the cathode output end of described power circuit; the negative pole of described the first diode; the first end of described the first relay; the first end of described the second relay; the negative pole of described the second diode be connected the first end of capacitor and connect; the second end of described the first resistor respectively with the first end of described the second resistor; the first end of described the first potentiometer; the sliding end of described the first potentiometer be connected the first end of the second potentiometer and connect; the second end of described the first potentiometer is connected with described the first silicon controlled control end; the second end of described the first relay respectively with the positive pole of described the first diode; described the first silicon controlled is anodal to be connected; described the first silicon controlled negative pole is connected with the first end of described forced resetting button; the second end of described the second potentiometer respectively with the sliding end of described the second potentiometer be connected the second silicon controlled control end and be connected; the second end of described the second relay respectively with the positive pole of described the second diode; the second end of described capacitor be connected that the second silicon controlled is anodal to be connected; described the second silicon controlled negative pole respectively with the second end of described forced resetting button; the second end of described the second resistor be connected the cathode output end of power circuit and connect, in parallel with described AC power behind the normal open switch of described the first relay of described socket series connection and the normal open switch of the second relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320058 CN202797875U (en) | 2012-07-04 | 2012-07-04 | Commercial power over-voltage and under-voltage automatic protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320058 CN202797875U (en) | 2012-07-04 | 2012-07-04 | Commercial power over-voltage and under-voltage automatic protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797875U true CN202797875U (en) | 2013-03-13 |
Family
ID=47825053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320058 Expired - Fee Related CN202797875U (en) | 2012-07-04 | 2012-07-04 | Commercial power over-voltage and under-voltage automatic protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242231A (en) * | 2013-06-17 | 2014-12-24 | 海洋王（东莞）照明科技有限公司 | Lamp voltage protection circuit and lamp |
| CN104659738A (en) * | 2014-12-26 | 2015-05-27 | 国家电网公司 | Low-cost over-voltage and over-current protection circuit for household power network |
-
2012
- 2012-07-04 CN CN 201220320058 patent/CN202797875U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242231A (en) * | 2013-06-17 | 2014-12-24 | 海洋王（东莞）照明科技有限公司 | Lamp voltage protection circuit and lamp |
| CN104242231B (en) * | 2013-06-17 | 2018-10-12 | 海洋王（东莞）照明科技有限公司 | Lamps and lanterns voltage protection circuit and lamps and lanterns |
| CN104659738A (en) * | 2014-12-26 | 2015-05-27 | 国家电网公司 | Low-cost over-voltage and over-current protection circuit for household power network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130704 |