CN2220133Y - Multifunctional protector for household electrical appliances - Google Patents
Multifunctional protector for household electrical appliances Download PDFInfo
- Publication number
- CN2220133Y CN2220133Y CN 93234857 CN93234857U CN2220133Y CN 2220133 Y CN2220133 Y CN 2220133Y CN 93234857 CN93234857 CN 93234857 CN 93234857 U CN93234857 U CN 93234857U CN 2220133 Y CN2220133 Y CN 2220133Y
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- CN
- China
- Prior art keywords
- safety device
- electric shock
- resistance
- insurance
- household
- 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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- Breakers (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a multifunctional protector for household electrical appliances, which is formed by in series connecting a power plug, an insurance electrical leakage over-voltage switch and a multi-purpose power socket and in parallel connecting a voltage-sensitive resistor, a light-emitting diode and an AC voltage meter. The utility model can carry out sensitive and reliable protection for personal safety and household appliance safety, and admits of stationary use and mobile use, which brings convenience for detecting if the protector is ineffective.
Description
Automatic safety device when the utility model relates to a kind of human electric shock, the protector that especially household electrical appliance is also had the kinds of protect function.
Present existing protective device has two kinds, and a kind of is the leakage switch of installing and using on the outdoor inlet wire distribution panelboard, adopts dropout break type actuator, have not fragile, itself not power consumption at ordinary times, characteristics such as the electric shock load current is big, and cost is low.But, outdoor owing to being installed in, therefore, install and use inconvenience, operating current must be provided with bigger, and whether sensitivity is low, be not easy to check leakage switch itself to lose efficacy, and also just is not easy to reach accurate and reliable requirement.In addition, the function of household electrical appliance not being ensured public security.Another kind of electric protective device, owing to adopt relay to do to open circuit actuator, its complex structure, the contact load electric current is little, the equal long-term work power consumption of all circuit, what damage itself just arranged when power supply misphase, overvoltage may.
The purpose of this utility model provides a kind of multifunctional circuit-protecting device; it can not only sensitivity be cut off the electricity supply when the human electric shock fast; personal safety is carried out reliable protection; and can also be struck by lightning to household electrical appliance; effectively protect when power supply misphase, short circuit, overload, overvoltage, and can check protector itself whether to lose efficacy very easily.
Implementation of the present utility model is:
In shell, attaching plug, insurance, piezo-resistance, light-emitting diode, electric leakage overpressure switch, Multi-purpose power socket, alternating voltage gauge outfit are electrically connected.The electric leakage overpressure switch is the leakage switch of the dropout break type protection used on the former outdoor inlet wire distribution panelboard, changes its operating current into 10mA, and adds the overpressure switch function.Constitute electric shock, over-pressure safety device by electric leakage overpressure switch and Multi-purpose power socket, insurance, piezo-resistance constitute thunderbolt, power supply misphase, overvoltage, short circuit, overload protection arrangement, and alternating voltage gauge outfit, light-emitting diode are formed power source indicating device.
Owing to adopt such scheme, can carry out sensitive reliable protection to the person and household electrical appliance, can fixedly use and move use, be convenient to check protector itself whether to lose efficacy.
Below in conjunction with accompanying drawing the utility model is further specified:
Fig. 1 is a schematic diagram of the present utility model.
Among the figure, attaching plug (1), insurance (2), piezo-resistance (3), (4), (5), light-emitting diode (6), current-limiting resistance (7), electric leakage overpressure switch (8), alternating voltage gauge outfit (9), testing agency (10), processing mechanism (11), tripping mechanism (12), Multi-purpose power socket (13), (14), (15).In Fig. 1, attaching plug (1) upper end and insurance (2) are connected in series to the interior fixed contact in input side upper end of electric leakage overpressure switch (8), fixed contact in the input side lower end of attaching plug (1) lower end and electric leakage overpressure switch (8) is connected, attaching plug (1) middle-end is connected with ground wire, piezo-resistance (3) is attempted by between electric leakage overpressure switch (8) upper end and the ground wire, piezo-resistance (4) is attempted by between attaching plug (1) lower end and the ground wire, piezo-resistance (5) is attempted by leakage switch (8) up and down between the two-end-point, is attempted by piezo-resistance (5) two ends after light-emitting diode (6) and current-limiting resistance (7) series connection; Rectifier in the processing mechanism (11) is connected with the silicon controlled control utmost point, the silicon controlled output is connected with electromagnet, armature on the electromagnet pole has a bayonet socket, bayonet socket blocks the slide plate of release, slide plate drives two moving contact foldings up and down, two moving contact outputs are connected with Multi-purpose power socket (13), (14), (15), and Multi-purpose power socket (13), (14), (15) middle-end are connected with ground wire.Its course of work is: attaching plug (1) is inserted commercial power socket, the operating state of power supply is promptly indicated in power source indicating device (6), (9), as normally, piezo-resistance (3), (4), (5) are high-impedance state and are inoperative, the handle of the overpressure switch of will leaking electricity (8) closes, two groups of moving contacts of leakage switch (8) and fixed contact closure, civil power is exported to household electric appliance operation by Multi-purpose power socket (13), (14), (15).As household electrical appliance the electric leakage situation is arranged; during the human body touch household appliances shell; leakage current is gone into ground by human body, causes the people to get an electric shock, and it is uneven that leakage switch (8) two power line electric currents are occurred; detect through testing agency (10); the interior controllable silicon conducting of processing mechanism (11), electromagnet energising adhesive drives tripping mechanism (12) two groups of moving contacts of leakage switch and fixed contact is disconnected; household electrical appliance lose power supply and quit work, and therefore personal safety is protected.The thunderbolt situation is taking place; when thunder and lightning seals in from power line; piezo-resistance (3), (4), (5) become the minimum electric conductor of resistance immediately because of the thunderbolt high pressure; thunder-strike current is gone into ground; protective tube (2) is blown because of flowing through big electric current simultaneously; cut off electric current, thus protection household electrical appliance and leakage switch.When misphase and overtension took place, the action of electric leakage overpressure switch was cut off the electricity supply, and protection electrical equipment is not damaged by high pressure, and clamping action is at this moment played in piezo-resistance (3), (4), (5), does not make the driving element of high-voltage breakdown leakage switch.If when household electrical appliance overload or short circuit, protective tube (2) flows through current limit and blows, household electrical appliance are protected because of outage.Piezo-resistance (3), (4), (5) also work to absorb power voltage surge and spike at ordinary times, and power conditioner reduces the interference to household electrical appliance.
Claims (4)
1, a kind of multi-functional electric shock, Safety device for household electric appliance; can fix and move use, it is characterized in that: connect electric shock that Multi-purpose power socket constitutes, over-pressure safety device and is connected thunderbolt, power supply misphase, overvoltage, short circuit, overload protection arrangement that piezo-resistance constitutes by the electric leakage overpressure switch and reach the power source indicating device that constitutes by light-emitting diode, alternating voltage gauge outfit and formed by insurance.
2, multi-functional electric shock according to claim 1, Safety device for household electric appliance; it is characterized in that: electric shock, over-pressure safety device are the electric leakage overpressure switch with the protection of dropout break type; input series connection insurance is connected with attaching plug, output be connected with Multi-purpose power socket form.
3, multi-functional electric shock according to claim 1, Safety device for household electric appliance is characterized in that: thunderbolt, power supply misphase, overvoltage, short circuit, overload protection arrangement are connected and are connect piezo-resistance by attaching plug and insurance and formed.
4, multi-functional electric shock according to claim 1, Safety device for household electric appliance is characterized in that: power source indicating device is to be attempted by the attaching plug two ends after being connected by light-emitting diode and current-limiting resistance, and the alternating voltage gauge outfit is attempted by the Multi-purpose power socket two ends and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234857 CN2220133Y (en) | 1993-10-18 | 1993-10-18 | Multifunctional protector for household electrical appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234857 CN2220133Y (en) | 1993-10-18 | 1993-10-18 | Multifunctional protector for household electrical appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220133Y true CN2220133Y (en) | 1996-02-14 |
Family
ID=33810423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234857 Expired - Fee Related CN2220133Y (en) | 1993-10-18 | 1993-10-18 | Multifunctional protector for household electrical appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220133Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113419193A (en) * | 2021-07-30 | 2021-09-21 | 重庆电子工程职业学院 | Electric leakage monitoring system |
-
1993
- 1993-10-18 CN CN 93234857 patent/CN2220133Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113419193A (en) * | 2021-07-30 | 2021-09-21 | 重庆电子工程职业学院 | Electric leakage monitoring system |
| CN113419193B (en) * | 2021-07-30 | 2023-09-26 | 重庆电子工程职业学院 | Leakage monitoring system |
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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 |