CN2224478Y - Super-high-voltage self-power-off protector - Google Patents
Super-high-voltage self-power-off protector Download PDFInfo
- Publication number
- CN2224478Y CN2224478Y CN 93213595 CN93213595U CN2224478Y CN 2224478 Y CN2224478 Y CN 2224478Y CN 93213595 CN93213595 CN 93213595 CN 93213595 U CN93213595 U CN 93213595U CN 2224478 Y CN2224478 Y CN 2224478Y
- Authority
- CN
- China
- Prior art keywords
- power
- protector
- voltage
- utility
- relay
- 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.)
- Expired - Fee Related
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- Protection Of Static Devices (AREA)
Abstract
The utility model discloses a super-high-voltage self-power-off protector. Because the utility model uses a more reasonable circuit structure, when a power supply source excesses voltage, the utility model not only can cut off a power source of an electric appliance but also can cut off the self power source of the protector. Not only the electric appliance can be protected, but also the utility model can prevent the body of the protector from suffering the harm of over high voltage. The generation of the phenomenon of frequent action of the protector can be prevented when the power supply source generates interstitial over voltage. The utility model is an over voltage self-power-off protector for the electric appliance with safety and reliability.
Description
The utility model relates to a kind of Protector for using electricity, during particularly a kind of power supply ultra-voltage electrical appliance is carried out the protective device of outage automatically.
Present existing family expenses over-voltage power-off protector all is directly to control circuit breaker by control circuit to implement power-off protection at the input of the power output socket of protector, during the power supply source overvoltage, and the action of protector control circuit, the output of cutting off the electricity supply.Though these protectors can cut off the electrical appliance power supply when the power supply overvoltage, protector will be kept this state self and can not cut off the power supply, and therefore exists the defective that protector self meeting is burnt out by too high voltage.
The purpose of this utility model is: provide a kind of novel overvoltage from power-off protector, it can be when the power supply overvoltage, when cutting off the electrical appliance power supply automatically, and the also power supply of tripping protection device.Reach and not only protect electrical appliance but also can prevent protector from the harm of experiencing too high voltages, in the time of can preventing that also the clearance-type overvoltage from appearring in power supply simultaneously, the phenomenon of protector frequent movement takes place.
Formation of the present utility model: comprise power output socket, the rectifier in parallel, and be connected in the control unit and the pressurizer of rectifier output end, be connected to discharge paths and the power on/off control branch road that is connected in parallel at the output of pressurizer with socket; Between power output socket and power supply, be serially connected with a power on/off and carry out branch road.
In power-off protector, described power on/off control branch road can be composed in series by the relay normally closed contact of a relay and control unit at above-mentioned ultra-voltage; Described discharge paths is composed in series by the normally closed contact of the relay of power on/off control branch road and the normally closed contact of a duplex button; Described power on/off is carried out the normal opened contact of a normal opened contact of the relay of route power on/off control branch road and described duplex button and is connect composition.
Compared with the prior art, the utility model makes the utility model when the power supply overvoltage owing to adopt the rational circuit structure that more becomes, and not only can cut off the electrical appliance power supply, and can also tripping protection device self power supply.Not only can protect electrical appliance, also can prevent protector from the harm of experiencing too high voltages, in the time of can also preventing that the clearance-type overvoltage from appearring in power supply, the phenomenon of protector frequent movement takes place.Be that a kind of safe and reliable electrical appliance overvoltage is from power-off protection apparatus.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is the utility model electrical schematic diagram.
Embodiment of the present utility model: the utility model comprises power output socket, the rectifier in parallel with socket, and be connected in the control unit and the pressurizer of rectifier output end, be connected to discharge paths and the power on/off control branch road that is connected in parallel at the output of pressurizer; Between power output socket and power supply, be serially connected with a power on/off and carry out branch road.
In power-off protector, described power on/off control branch road can be composed in series by the relay normally closed contact of a relay and control unit at above-mentioned ultra-voltage; Described discharge paths is composed in series by the normally closed contact of the relay of power on/off control branch road and the normally closed contact of a duplex button; Described power on/off is carried out the normal opened contact of a normal opened contact of the relay of route power on/off control branch road and described duplex button and is connect composition.
During use, press duplex button QA earlier, its normal opened contact energized, normally closed contact disconnects discharge paths, and the relay J 2 of power on/off control branch road gets electric, its normal opened contact closure, the electrical appliance that is connected on the socket gets.Power supply voltage is higher when surpassing the setting value of control unit, and triode T turn-on relay J1 gets electric, and its normally closed contact cuts off the power supply J2, J2 normal opened contact deenergization, its normally closed contact is connected discharge paths, with the energy storage release of capacitor C, avoids its discharge to cause J1 adhesive once more.Three terminal regulator is to provide stable operating voltage for relay J 1.
Claims (2)
1, a kind of ultra-voltage is from power-off protector, comprise power output socket, the rectifier in parallel with socket, and be connected in the control unit and the pressurizer of rectifier output end, it is characterized in that: the output at pressurizer is connected to discharge paths and the power on/off control branch road that is connected in parallel; Between power output socket and power supply, be serially connected with a power on/off and carry out branch road.
2, ultra-voltage according to claim 1 is characterized in that from power-off protector: the relay normally closed contact of described power on/off control route one relay and control unit composes in series; Described discharge paths is composed in series by the normally closed contact of the relay of power on/off control branch road and the normally closed contact of a duplex button; Described power on/off is carried out the normal opened contact of a normal opened contact of the relay of route power on/off control branch road and described duplex button and is connect composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213595 CN2224478Y (en) | 1993-05-20 | 1993-05-20 | Super-high-voltage self-power-off protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213595 CN2224478Y (en) | 1993-05-20 | 1993-05-20 | Super-high-voltage self-power-off protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224478Y true CN2224478Y (en) | 1996-04-10 |
Family
ID=33794619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93213595 Expired - Fee Related CN2224478Y (en) | 1993-05-20 | 1993-05-20 | Super-high-voltage self-power-off protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224478Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834428A (en) * | 2010-05-20 | 2010-09-15 | 刘昭利 | AC mains over-voltage power-off protector |
-
1993
- 1993-05-20 CN CN 93213595 patent/CN2224478Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834428A (en) * | 2010-05-20 | 2010-09-15 | 刘昭利 | AC mains over-voltage power-off protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |