CN2271767Y - Directly-plugging overvoltage protector for household electrical appliances - Google Patents
Directly-plugging overvoltage protector for household electrical appliances Download PDFInfo
- Publication number
- CN2271767Y CN2271767Y CN 96249512 CN96249512U CN2271767Y CN 2271767 Y CN2271767 Y CN 2271767Y CN 96249512 CN96249512 CN 96249512 CN 96249512 U CN96249512 U CN 96249512U CN 2271767 Y CN2271767 Y CN 2271767Y
- Authority
- CN
- China
- Prior art keywords
- household electrical
- electrical appliances
- overvoltage protector
- voltage
- power supply
- 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
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a directly-plugging over-voltage protector for household electrical appliances. A voltage dependent resistor L is connected between two power supply inserting pieces in a power supply plug; thus, an over-voltage protector is formed. When used, the inserting pieces are inserted into jacks of a power supply socket. When the voltage is normal, the resistor does not work; the over-voltage protector can make fuses burnt out; thus, the household electrical appliances are protected and in order not to be damaged. The utility model has the advantages of simple structure, convenient operation, and high safety.
Description
The utility model relates to a kind of direct insertion household electrical appliances overvoltage protector, belongs to the technical field of Protector for electric appliances.
Household electrical appliance damage owing to supply voltage sports 380V voltage by 220V; even have an accident; therefore the normal Protector for electric appliances that uses; when raising, voltage can in time cut off the electricity supply; can avoid damaging or the generation of accident, but its structure is very complicated, and cost is also high; not safe and reliable sometimes in the use, also limited and promoted the use of.
The purpose of this utility model is that a kind of direct insertion household electrical appliances overvoltage protector will be provided; it can overcome above-mentioned shortcoming, mainly adds in attaching plug and adorns a piezo-resistance, can make fusible link fusing and the safeguard protection household electrical appliance when superpressure; it is simple in structure, and is easy to use and install reliable.
The purpose of this utility model is achieved in that
A kind of direct insertion household electrical appliances overvoltage protector, it connects a piezo-resistance R between 2 power supply inserted sheets (2) of attaching plug (1)
L(3), constitute overvoltage protector thus.
Fig. 1 overvoltage protector schematic diagram;
Fig. 2 overvoltage protector operating position schematic diagram;
Fig. 3 overvoltage protector voltage schematic diagram just often;
The schematic diagram of Fig. 4 overvoltage protector when overvoltage.
Now in conjunction with the accompanying drawings the structure of direct insertion household electrical appliances overvoltage protector is described in detail:
By Fig. 1, attaching plug (1) has a copper power supply inserted sheet (2), connects a piezo-resistance R between inserted sheet
L(3), constitute a direct insertion household electrical appliances overvoltage protector thus.
By Fig. 2, during use two inserted sheets (2) of above-mentioned plug (1) are inserted in the jack of supply socket, at this moment piezo-resistance R
L(3) be connected in parallel by fuse S and power supply 220V with illuminating lamp L and household electrical appliance (M).
By Fig. 3, keep piezo-resistance R just often at voltage
L(3) inoperative.
By Fig. 4, when the voltage jump superpressure, piezo-resistance R
L(3) begin to work, form a short circuit, make fusible link S fusing, so power supply is cut off, household electrical appliance M is protected, not reason overvoltage and damaging.
Compared with prior art, direct insertion overvoltage protector for household electrical appliances has following advantages:
1, simple in structure, cost is low;
2, very easy and safe and reliable in the use;
Claims (1)
1, a kind of direct insertion household electrical appliances overvoltage protector is characterized in that connecting a piezo-resistance R between 2 power supply inserted sheets (2) of attaching plug (1)
L(3), constitute overvoltage protector thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96249512 CN2271767Y (en) | 1996-12-26 | 1996-12-26 | Directly-plugging overvoltage protector for household electrical appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96249512 CN2271767Y (en) | 1996-12-26 | 1996-12-26 | Directly-plugging overvoltage protector for household electrical appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2271767Y true CN2271767Y (en) | 1997-12-31 |
Family
ID=33921080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96249512 Expired - Fee Related CN2271767Y (en) | 1996-12-26 | 1996-12-26 | Directly-plugging overvoltage protector for household electrical appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2271767Y (en) |
-
1996
- 1996-12-26 CN CN 96249512 patent/CN2271767Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2271767Y (en) | Directly-plugging overvoltage protector for household electrical appliances | |
| CN2166534Y (en) | Multi-plug receptacle with overcurrent overvoltage protector | |
| CN209880913U (en) | Plug with improved structure | |
| CN2534699Y (en) | Intelligent socket | |
| CN2229109Y (en) | Overvoltage protective device for household electric appliances | |
| CN2751470Y (en) | Overheat protection unit for socket | |
| CN201008054Y (en) | Anti-surge voltage and surge current plug and socket | |
| CN2454969Y (en) | Machine card protection apparatus for automation system of transformer substation | |
| CN2629287Y (en) | Thunderstruck proof safety socket | |
| CN2253097Y (en) | Lamp ballast and transformer with short-circuit protection | |
| CN2457706Y (en) | Safety pressure sensitive resistor | |
| CN2559151Y (en) | Electric appliance protection eathing monitoring device | |
| CN2274835Y (en) | Lightning arrestor for computer and household electric appliances | |
| CN2165550Y (en) | Safety device for household electric appliances | |
| CN2353021Y (en) | Arrester protective device for electric appliance | |
| CN2189347Y (en) | Automaticall controlled transformer | |
| CN2209392Y (en) | Overcurrent protection socket | |
| CN2737000Y (en) | Safety socket with power-down protection and over-voltage protection | |
| CN2182477Y (en) | Multi-function circuit protector | |
| CN2762386Y (en) | Safety power supply patch panel | |
| CN2311853Y (en) | Phase-defect protective connecting device | |
| CN2192958Y (en) | Plug socket with anti-electricity and without spark | |
| CN2290951Y (en) | Resistance sensitive compound voltage reducing starter of pond excavator set | |
| CN2248414Y (en) | Intelligent protector | |
| CN2263407Y (en) | Multifunctional plug |
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 |