CN2155621Y - Overvoltage and overcurrent automatic protection device - Google Patents
Overvoltage and overcurrent automatic protection device Download PDFInfo
- Publication number
- CN2155621Y CN2155621Y CN 93236976 CN93236976U CN2155621Y CN 2155621 Y CN2155621 Y CN 2155621Y CN 93236976 CN93236976 CN 93236976 CN 93236976 U CN93236976 U CN 93236976U CN 2155621 Y CN2155621 Y CN 2155621Y
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- CN
- China
- Prior art keywords
- overvoltage
- plug
- voltage
- utility
- model
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- 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 relates to a switch blade, which comprises a switch knife body. The utility model is characterized in that two wires outlet terminals of the switch knife body are connected with the two ends of an overvoltage proof and thunder proof voltage sensing element. When the phenomenon of overvoltage and thunderstroke occurs, the voltage sensing element works quickly to burn out fuses. The utility model can ensure the overvoltage and the high voltage of thunderstroke can not enter electric equipment and avoid the electric equipment from destroying.
Description
The utility model relates to a kind of electric power plug-in strip.
The existing power plug-in strip is a HK type open-type load switch; it adopts copper sheet is dynamic and static contact; latten(-tin) is a binding post; the middle fuse that connects; be installed on the plug-in strip base; generally be applicable to exchange the general low-voltage electrical apparatus device that 50HZ, voltage are lower than 500V, for manually not connecting continually and disjunction load and make short-circuit protection.When the rated voltage of load is that single-phase 250V and the single-phase voltage of external power supply are when surpassing 250V; when perhaps phase voltage (250V) misconnection being become line voltage (380V); or meet when being struck by lightning, just can not protect the power consumption equipment on the following loop of plug-in strip and prevent thunderbolt, power consumption equipment will be destroyed.
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of over-voltage and over-current that makes power consumption equipment exempt from destruction to protect plug-in strip automatically.
Technical solution of the present utility model:
A kind of over-voltage and over-current is protected plug-in strip automatically, and it includes plug-in strip body 1, and plug-in strip body 1 is provided with input terminal 2, middle splicing ear 3, outlet terminal 4, it is characterized in that two outlet terminals 4 are connected with the two ends of anti-overvoltage lighning proof type pressure cell 5.
The utility model can only carry out outside the function of break-make and short-circuit protection at existing product; increased the function of overvoltage protection, anti-lightning strike protection and noise reduction sound again; when in case networking voltage becomes line voltage to the phase voltage misconnection above 250V or owing to artificial or natural cause; perhaps take place to be struck by lightning when having high pulse voltage to enter; pressure-sensitive device in this plug-in strip moves rapidly; blow up fuse, make high voltage can not enter power consumption equipment, in time protect power consumption equipment.In addition, the utility model can absorb extraneous surge voltage and the switch spark that causes and the interference of discharging, thereby the protection blade contact reduces noise, the useful life of prolongation electrical appliance.
Fig. 1 is a structural representation of the present utility model.
As Fig. 1, the anti-overvoltage lighning proof type pressure cell 5 that adopts in the utility model is MYH1 series of products or MYL1 series of products, select different pressure cells for use for the plug-in strip of different requirement of withstand voltage, for the common single-phase plug-in strip of most of families and unit use, use the pressure cell of MYH1-0.2 430V.Anti-overvoltage lighning proof type pressure cell 5 preferably is positioned on the plug-in strip body 1, promptly have aperture 6 in the position between two outlet terminals 4 of plug-in strip body 1 lower end, anti-overvoltage lighning proof type pressure cell 5 just is placed in this aperture 6, and by the lead-in wire be connected with two outlet terminals 4, seal with capping in the aperture of aperture 6.When too high voltages appearred in input terminal 2, this overvoltage at first made the fuse between then middle splicing ear 3 of pressure cell 5 puncture shorts and the outlet terminal 4 blow up rapidly, guarantees that too high voltages does not enter on the load power consumption equipment, and the protection power consumption equipment is not burnt.After overvoltage disappears, the only capping that need take off aperture 6 on the plug-in strip body 1, the pressure cell 5 that changes the outfit again can normally use again, and fail safe improves greatly.Anti-lightning strike process of the present utility model when having suffered thunderbolt because of the networking, has the high pulse voltage input with top identical, and pressure cell 5 moves rapidly like this, and the high pulse voltage electric current is introduced the earth, thus the protection power consumption equipment.
Claims (2)
1, a kind of over-voltage and over-current is protected plug-in strip automatically, and it includes plug-in strip body 1, and plug-in strip body 1 is provided with input terminal 2, middle splicing ear 3, outlet terminal 4, it is characterized in that two outlet terminals 4 are connected with the two ends of anti-overvoltage lighning proof type pressure cell 5.
2, protect plug-in strip automatically by the described over-voltage and over-current of claim 1; it is characterized in that the position between two outlet terminals 4 that is preferably in plug-in strip body 1 lower end has aperture 6; anti-overvoltage lighning proof type pressure cell 5 just is placed in this aperture 6, and is connected with two outlet terminals 4 by lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236976 CN2155621Y (en) | 1993-05-31 | 1993-05-31 | Overvoltage and overcurrent automatic protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236976 CN2155621Y (en) | 1993-05-31 | 1993-05-31 | Overvoltage and overcurrent automatic protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155621Y true CN2155621Y (en) | 1994-02-09 |
Family
ID=33812027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93236976 Expired - Fee Related CN2155621Y (en) | 1993-05-31 | 1993-05-31 | Overvoltage and overcurrent automatic protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155621Y (en) |
-
1993
- 1993-05-31 CN CN 93236976 patent/CN2155621Y/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 | ||
| 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 |