CN205105116U - Take fuse holder's lightning protection type power adapter - Google Patents
Take fuse holder's lightning protection type power adapter Download PDFInfo
- Publication number
- CN205105116U CN205105116U CN201520674628.XU CN201520674628U CN205105116U CN 205105116 U CN205105116 U CN 205105116U CN 201520674628 U CN201520674628 U CN 201520674628U CN 205105116 U CN205105116 U CN 205105116U
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- CN
- China
- Prior art keywords
- lightning protection
- fuse
- adapter
- piezo
- type power
- 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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- Fuses (AREA)
Abstract
The utility model discloses a take fuse holder's lightning protection type power adapter, including adapter main part and lightning protection subassembly, the lightning protection subassembly includes fuse and piezo -resistor, its characterized in that: the fuse is established ties on the adapter exchanges the live wire of 220v input, and piezo -resistor connects in parallel and follows between the live wire at the zero line of adapter interchange 220v input. A whole is assembleed into with the adapter main part to the lightning protection subassembly, and the fuse adopts fuse holder form, the convenient change. When surge voltage arrived, piezo -resistor switched on for the electric current that flows through the fuse increases rapidly, makes fusing of metal, protection adapter and hou mian electronic equipment. The utility model discloses with cheap cost, make power adapter obtain good lightning protection performance.
Description
Technical field
The present invention relates to power supply adaptor technical field, particularly a kind of lighning proof type power supply adaptor with Insurance Block.
Background technology
Power supply adaptor is a kind of for mains is converted to low-voltage direct, to the equipment that all kinds of low voltage equipment is powered.The power supply adaptor generally used in the market, uses design based on indoor environment, less demanding to lightning protection, does not possess the protective capacities for thunderbolt.And in actual use, as monitoring field, watch-dog is arranged on enclosure wall eminence usually, on electric pole, or high top of tower, the easy induction lightening of its electric wire cable, thus to power supply adaptor even camera cause damage.According to statistics, the power supply adaptor spoilage caused owing to being struck by lightning accounts for reprocesses more than 60% of power supply product, causes the huge wasting of resources to country and society.
Summary of the invention
The object of this invention is to provide a kind of lighning proof type power supply adaptor with Insurance Block.
The technical scheme realizing the object of the invention is:
With a lighning proof type power supply adaptor for Insurance Block, schematic diagram as shown in Figure 2, comprises power supply adaptor main body and lightning protection component.
Described lightning protection component comprises fuse and piezo-resistance, and described fuse is connected on adapter main body and exchanges on the live wire of 220v input, and described piezo-resistance is connected in parallel on adapter and exchanges between 220v input live wire and zero line.
Described lightning protection component is owing to only comprising piezo-resistance with insurance two components and parts, and can assemble an entirety with adapter main body very easily, schematic appearance as shown in Figure 4.
When surge voltage arrives, piezo-resistance conducting, makes the electric current flowing through fuse increase rapidly, blows a fuse, and avoids adapter main body to be subject to large inrush current shock, reaches the effect of protection adapter and electronic equipment below thereof.
Use the object of Insurance Block, after being blown fuse, be convenient for changing.
The present invention has the following advantages and beneficial effect: the lighning proof type power supply adaptor of band Insurance Block of the present invention, does not need to install earth connection; When lightning surge comes, fuse quick-break, protection adapter circuit and electronic equipment below thereof; After blown fuse, can change very easily, with low cost, lightning protection effect is good.
Accompanying drawing explanation
Fig. 1 is existing power supply adapter principle schematic;
Fig. 2 is embodiment lighning proof type power supply adaptor principle schematic;
In figure, 1. adapter main body 2. fuse 3. piezo-resistance
Fig. 3 is existing power supply adapter schematic appearance;
Fig. 4 is embodiment lighning proof type power supply adaptor schematic appearance;
In figure, 1. adapter main body 2. exchanges 220v input 3. DC output end 4. Insurance Block
Embodiment
Below in conjunction with drawings and Examples, content of the present invention is further elaborated, but is not limitation of the invention.
Embodiment:
With reference to Fig. 2, a kind of lighning proof type power supply adaptor with Insurance Block, comprises adapter main body and lightning protection component.
Described lightning protection component comprises fuse 2 and piezo-resistance 3, and described fuse 2 is connected on the live wire of interchange 220v input of adapter main body 1, and described piezo-resistance 3 is connected in parallel on the interchange 220v input live wire of adapter main body 1 with between zero line.
Described lightning protection component is owing to only comprising piezo-resistance 3 with insurance 2 two components and parts, and can assemble an entirety with adapter main body 1 very easily, schematic appearance as shown in Figure 4.
When surge voltage arrives, piezo-resistance 3 conducting, makes the electric current flowing through fuse 2 increase rapidly, and fuse 2 is fused, and avoids adapter main body 1 circuit to be subject to large inrush current shock, thus protects adapter main body 1 and electronic equipment below thereof.
Fuse 2 uses Insurance Block form, after blown fuse, is convenient for changing.
In the present embodiment, fuse adopts 2A250v specification, and piezo-resistance adopts 14D561, and when using the inrush current shock test of 1200v, 5KA, blown fuse, adapter main body circuit does not damage; Wait for 10 minutes, change same size fuse, then repeat one-shot test, blown fuse, adapter main body does not still damage.
In actual use, according to environment for use, lightning protection class requirement, fuse and piezo-resistance specification can be determined, reach corresponding protection effect.
Claims (1)
1. the lighning proof type power supply adaptor with Insurance Block, comprise adapter main body and lightning protection component, described lightning protection component comprises fuse and piezo-resistance, it is characterized in that: described fuse is connected on adapter main body and exchanges on the live wire of 220v input, between the zero line that described piezo-resistance is connected in parallel on adapter main body interchange 220v input and live wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674628.XU CN205105116U (en) | 2015-08-28 | 2015-08-28 | Take fuse holder's lightning protection type power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674628.XU CN205105116U (en) | 2015-08-28 | 2015-08-28 | Take fuse holder's lightning protection type power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205105116U true CN205105116U (en) | 2016-03-23 |
Family
ID=55520867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520674628.XU Expired - Fee Related CN205105116U (en) | 2015-08-28 | 2015-08-28 | Take fuse holder's lightning protection type power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205105116U (en) |
-
2015
- 2015-08-28 CN CN201520674628.XU patent/CN205105116U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20180828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |