CN202444238U - Low residual voltage modularization power supply lightening prevention device - Google Patents
Low residual voltage modularization power supply lightening prevention device Download PDFInfo
- Publication number
- CN202444238U CN202444238U CN201220066085XU CN201220066085U CN202444238U CN 202444238 U CN202444238 U CN 202444238U CN 201220066085X U CN201220066085X U CN 201220066085XU CN 201220066085 U CN201220066085 U CN 201220066085U CN 202444238 U CN202444238 U CN 202444238U
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- Prior art keywords
- fuse link
- lightning protection
- residual voltage
- prevention device
- power supply
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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 discloses a low residual voltage modularization power supply lightening prevention device which comprises a lightening prevention device body and is characterized in that a voltage dependent resistor, a fuse link and a trip device are disposed inside the lightening prevention device body, one end of the fuse link is directly connected with a base and the other end of the fuse link is connected with an electrode plate on the voltage dependent resistor. The trip device includes a tripping sliding pole and a spring. The tripping sliding pole is arranged between the fuse link and the electrode plate, a protrusion is arranged on the lower middle portion of the tripping sliding pole and is located below the joint of the fuse link and the electrode plate and the tripping sliding pole penetrates the lightening prevention device body. The spring penetrates from the lower portion of the tripping sliding pole and is located between the protrusion and the base. A visible alarm window is arranged on the lightening prevention device body. The low residual voltage modularization power supply lightening prevention device is directly connected with the electrode plate connected with the base through the voltage dependent resistor, the lightening passage is short, the residual voltage is low and the reaction speed of the trip device is quick.
Description
Technical field
The utility model relates to a kind of lightning protection device for electric power, particularly relates to a kind of low residual voltage modularization lightning protection for power supply.
Background technology
Lightning protection for power supply can prevent thunder and lightning and overvoltage intrusion equipment and cause damage; Adopt lightning protection for power supply can in the shortest time, discharge a large amount of pulse energies that produce because of lightning induction on the power circuit and make it the short circuit the earth of releasing; To reduce the voltage of device power supply (DPS) port, with the safety of electronic equipment on the protective circuit.Yet; When thunderbolt took place, electric current was very big, in lightning protection valve block and lightning protection device, can produce very big residual voltage on each union piece and the tie point thereof; This residual voltage can directly be loaded on the protected electronic equipment; When residual voltage reaches certain value,, but still can damage greater than equipment is withstand voltage because of the lightning protection device residual voltage though then this electronic equipment has the lightning protection device protection.Lightning protection for power supply in the market, lightning protection device core component all are that soft flat type copper wire, the electrode slice through certain-length is connected the lightning protection valve block with the electrode slice that is connected with base, and its thunder and lightning passage path is longer, and the residual voltage of generation is also bigger.In addition, trip gear reaction path of the prior art is long, and reaction speed is slow, under the situation of high electric current or short circuit, is easy to cause burning of lightning protection device internal components.
Summary of the invention
The utility model technical issues that need to address provide a kind of simple in structure, and residual voltage is low, the sensitive low residual voltage modularization lightning protection for power supply of threading off.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of low residual voltage modularization lightning protection for power supply comprises the lightning protection device body, and it is characterized in that: the lightning protection device body interior has piezo-resistance, fuse link and trip gear, and an end of fuse link directly links to each other with base, and the other end connects the electrode slice on the piezo-resistance; Described trip gear comprises dropout litter and a spring, and the dropout litter is arranged between fuse link and the electrode slice, and its middle and lower part is provided with a convexity, and convexity is positioned at the below of fuse link and electrode slice junction, and the dropout litter runs through the lightning protection device body; Described spring passes from the bottom of dropout litter, between convexity and base; The lightning protection device body is provided with the visual alarm window.
Further, described fuse link and electrode slice connect through the eutectic welding soldering.There is not any connector between the two.
Compared with prior art, the utility model has following advantage:
The first, lightning protection component directly is connected with electrode slice, has shortened the thunder and lightning power-on circuit, reduces residual voltage.Fuse link directly is connected with electrode slice, and any transition part is not adopted in the centre, and power-on circuit is short, and the thunder and lightning residual voltage is low, effectively electronic devices and components in the protective circuit.
The second, the sensitivity that is swift in response of threading off.Fuse link and electrode slice connect through the eutectic welding soldering and form, middle no any connector, and at lightning protection device just often, spring is compressive state; Electric current is excessive in piezo-resistance short circuit or circuit take place when causing temperature too high; The scolding tin of two electrode slices can melt fast; Fuse link flicks rapidly, and the thunder and lightning path breaks off, and spring stretches; One end of dropout litter is ejected the visual alarm window, thereby prompting user lightning protection device is in non operating state.The dropout litter promptly is the dropout protective device, also is the inefficacy indicating device.
Description of drawings
Fig. 1 is the internal structure sketch map of prior art.
Fig. 2 is the internal structure sketch map of the utility model.
Embodiment
Further specify the technical scheme of the utility model below in conjunction with accompanying drawing and embodiment.
In conjunction with Fig. 2, the utility model relates to a kind of low residual voltage modularization lightning protection for power supply, and it includes: lightning protection device body 1, piezo-resistance 2, fuse link 3, dropout litter 4, spring 5, visual alarm window 6; Wherein piezo-resistance 2 is positioned at the left side of lightning protection device body 1 inside; The right-hand member of piezo-resistance 2 has an electrode slice 21; Fuse link 3 is on the right side of piezo-resistance 2; Dropout litter 4 is between fuse link 3 and electrode slice 21, and the middle and lower part of dropout litter 4 is provided with a convexity 41, and protruding 41 below fuse link 3 and electrode slice 21 junctions; Spring 5 passes from the below of dropout litter 4, is positioned at protruding 41 below; Be connected through low temperature scolding tin between electrode slice 21 and the fuse link 3, visual alarm window 6 is holes that are positioned on the lightning protection device body 1, with the top of dropout litter 4 over against should.To meet with short circuits or lightning protection device electric current excessive and when causing temperature too high when piezo-resistance 2; Low temperature scolding tin between electrode slice 21 and the fuse link 3 melts rapidly; Connection is between the two broken off fast, and other assemblies of lightning protection device and the components and parts in the circuit then can not damaged; Fuse link 3 is upspring with the protruding compressed spring 5 of below, electrode slice 21 junctions, and visual alarm window 6 is stretched out on the top of dropout litter, reaches the function of warning.In the prior art, the electrode slice of piezo-resistance links to each other with long electrode slice, and long electrode slice connects the electrode slice on the base again with after a soft flat copper pipe is connected again; The thunder and lightning path is long; Residual voltage is high, and the response path of spring pulling trip gear is long, and reaction is slow.The utility model links to each other through piezo-resistance directly is connected the bottom with one electrode slice, and the thunder and lightning path is short, and residual voltage is low, and the trip gear reaction speed is fast.
Claims (2)
1. one kind low residual voltage modularization lightning protection for power supply comprises the lightning protection device body, and it is characterized in that: the lightning protection device body interior has piezo-resistance, fuse link and trip gear, and an end of fuse link directly links to each other with base, and the other end connects the electrode slice on the piezo-resistance; Described trip gear comprises dropout litter and a spring, and the dropout litter is arranged between fuse link and the electrode slice, and its middle and lower part is provided with a convexity, and convexity is positioned at the below of fuse link and electrode slice junction, and the dropout litter runs through the lightning protection device body; Described spring passes from the bottom of dropout litter, between convexity and base; The lightning protection device body is provided with the visual alarm window.
2. a kind of low residual voltage modularization lightning protection for power supply according to claim 1, it is characterized in that: described fuse link and electrode slice connect through the eutectic welding soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220066085XU CN202444238U (en) | 2012-02-24 | 2012-02-24 | Low residual voltage modularization power supply lightening prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220066085XU CN202444238U (en) | 2012-02-24 | 2012-02-24 | Low residual voltage modularization power supply lightening prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444238U true CN202444238U (en) | 2012-09-19 |
Family
ID=46825668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220066085XU Expired - Fee Related CN202444238U (en) | 2012-02-24 | 2012-02-24 | Low residual voltage modularization power supply lightening prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560481A (en) * | 2013-09-03 | 2014-02-05 | 四川中光防雷科技股份有限公司 | High shock tolerance surge protection device |
| CN103915833A (en) * | 2014-03-11 | 2014-07-09 | 王统 | Safe anti-thunder device |
-
2012
- 2012-02-24 CN CN201220066085XU patent/CN202444238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560481A (en) * | 2013-09-03 | 2014-02-05 | 四川中光防雷科技股份有限公司 | High shock tolerance surge protection device |
| CN103560481B (en) * | 2013-09-03 | 2017-02-01 | 四川中光防雷科技股份有限公司 | High shock tolerance surge protection device |
| CN103915833A (en) * | 2014-03-11 | 2014-07-09 | 王统 | Safe anti-thunder device |
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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: 20120919 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |