CN202633904U - Household electrical appliance electric protector - Google Patents
Household electrical appliance electric protector Download PDFInfo
- Publication number
- CN202633904U CN202633904U CN 201220146891 CN201220146891U CN202633904U CN 202633904 U CN202633904 U CN 202633904U CN 201220146891 CN201220146891 CN 201220146891 CN 201220146891 U CN201220146891 U CN 201220146891U CN 202633904 U CN202633904 U CN 202633904U
- Authority
- CN
- China
- Prior art keywords
- user load
- electrical appliance
- relay
- household electrical
- inlet wire
- 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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Abstract
The utility model discloses a household electrical appliance electric protector and relates to the household electrical appliance electric protection field. The Household electrical appliance electric protector includes a pressure-sensitive resistor (1), a relay (2), a zero sequence current transformer (3) and an amplifier (4). Two ends of the pressure-sensitive resistor (1) are in bridge joint between an inlet wire and an outlet wire of a power supply circuit of a user load (5); the zero sequence current transformer (3) winds the periphery of the inlet wire and outlet wire of a power supply circuit of the user load (5) and is in connection with the relay (2); two ends of the relay (2) are respectively in connection with an inlet wire end of a power supply circuit of the user load (5) and the amplifier (4); an outlet wire end of the user load (5) is provided with a switch (6). The household electrical appliance electric protector has a simple structure; when the voltage of the inlet wire end of the user load instantaneously rises, the switch is off; when the voltage recovers to be normal, the switch automatically closes and the user load works normally to ensure safe operation of electric equipment; the costs are low and the use is convenient.
Description
Technical field
The utility model relates to Household Appliance protection field, is a kind of Household Appliance protector specifically.
Background technology
Fast development along with economic society; The resident increases electrical appliance; The household electrical appliance that cause because of factors such as estate management, power supply quality, power consumption increases burn phenomenon all has generation throughout the country, and it all is because voltage neutral zero line break in the zone that these problems occur.
Summary of the invention
For solving the technical problem of above-mentioned existence, the utility model provides a kind of Household Appliance protector, and the moment that on-Line Voltage raises opens circuit, thus the safety of protection residential electricity consumption device, treat line voltage distribution recover normal after, operate as normal again.
For achieving the above object, the technical scheme that the utility model adopts is following:
Include piezo-resistance, relay, zero sequence current mutual inductor and amplifier; Said piezo-resistance across is between the inlet wire and outlet of user load supply line; It is peripheral that said zero sequence current mutual inductor is set around the inlet wire and the outlet of said user load supply line; And be connected with relay, the two ends of said relay are connected with the end of incoming cables and the amplifier of user load supply line respectively, and the leading-out terminal of said user load is provided with switch.
The utility model is simple in structure, and when the instantaneous rising of the end of incoming cables of user load voltage, switch breaks off, and voltage recovers normal back switch auto-closing, the load operate as normal, and the safe operation of protection power consumption equipment, with low cost, easy to use.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:
As shown be a specific embodiment of the utility model; Include piezo-resistance 1, relay 2, zero sequence current mutual inductor 3 and amplifier 4; Said piezo-resistance 1 across is between the inlet wire and outlet of user load 5 supply lines; It is peripheral that said zero sequence current mutual inductor 3 is set around the inlet wire and the outlet of said user load 5 supply lines; And be connected with relay 2, the two ends of said relay 2 are connected with the end of incoming cables and the amplifier 4 of user load 5 supply lines respectively, and the leading-out terminal of said user load 5 is provided with switch 6.
In the nominal value of the piezo-resistance 1 that supply voltage is being selected, instantaneous line voltage does not take place and raises in the system that is to say, piezo-resistance 1 is in cut-off state so, and the utility model is failure to actuate.When supply voltage surpassed the nominal value of piezo-resistance 1, instantaneous overvoltage had taken place in the system of that is to say, the electric current that soy sauce increases rapidly the piezo-resistance 1 of flowing through; Make that originally passing zero sequence current mutual inductor 3 inner electric currents changes, broken original balance, in its coil, produced electric current; This electric current relay 2 of flowing through; The closed conducting of the normally opened contact of relay 2, electric current breaks off through causing switch 6 behind the amplifier 4, has realized the protection for electric equipment.After voltage recovered normally, switch 6 cuts out automatically, and was normal through the electric current of load, the power consumption equipment operate as normal.
Certainly; Above-mentioned explanation is not to be the restriction to the utility model; The utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that the technical staff in present technique field is made in the essential scope of the utility model also should belong to the protection range of the utility model.
Claims (1)
1. Household Appliance protector; It is characterized in that; Include piezo-resistance (1), relay (2), zero sequence current mutual inductor (3) and amplifier (4); Said piezo-resistance (1) across is between the inlet wire and outlet of user load (5) supply line, and said zero sequence current mutual inductor (3) is set around the inlet wire and the outlet periphery of said user load (5) supply line, and is connected with relay (2); The two ends of said relay (2) are connected with the end of incoming cables and the amplifier (4) of user load (5) supply line respectively, and the leading-out terminal of said user load (5) is provided with switch (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146891 CN202633904U (en) | 2012-04-10 | 2012-04-10 | Household electrical appliance electric protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146891 CN202633904U (en) | 2012-04-10 | 2012-04-10 | Household electrical appliance electric protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633904U true CN202633904U (en) | 2012-12-26 |
Family
ID=47387050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146891 Expired - Fee Related CN202633904U (en) | 2012-04-10 | 2012-04-10 | Household electrical appliance electric protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633904U (en) |
-
2012
- 2012-04-10 CN CN 201220146891 patent/CN202633904U/en not_active Expired - Fee Related
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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: 20121226 Termination date: 20130410 |