CN202183600U - Complex type power supply lightning protection device - Google Patents
Complex type power supply lightning protection device Download PDFInfo
- Publication number
- CN202183600U CN202183600U CN2011202614103U CN201120261410U CN202183600U CN 202183600 U CN202183600 U CN 202183600U CN 2011202614103 U CN2011202614103 U CN 2011202614103U CN 201120261410 U CN201120261410 U CN 201120261410U CN 202183600 U CN202183600 U CN 202183600U
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- China
- Prior art keywords
- lightning protection
- protection device
- power supply
- gas discharge
- discharge tube
- 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.)
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Abstract
The utility model relates to a complex type power supply lightning protection device, comprising a piezoresistor, a gas discharging pipe, a divider resistor, and a transient inhibition diode, wherein the transient inhibition diode and the divider resistor are serially connected; the gas discharging pipe is parallelly connected with the serially connected transient inhibition diode and divider resistor; and the piezoresistor is serially connected with the gas discharging pipe, the transient inhibition diode, and the divider resistor which are connected in parallel. The complex type power supply lightning protection device can accelerate the reaction speed of the gas discharging pipe to accelerate the action time of a lightning protection device and can effectively protect the subsequent devices against the damage from thunder and lightning.
Description
[technical field]
The utility model relates to a kind of composite power supply lightning protection device, belongs to the thunder resisting equipment technical field.
[background technology]
Lightning protection for power supply is claimed Surge Protector again, and English name Surge Protective Device is called for short SPD.The lightning protection for power supply of prior art mainly is to adopt single Zinc-oxide piezoresistor, and the structure that adopts zinc oxide pressure-sensitive module and gas discharge tube tandem compound is also arranged.
The advantage of above-mentioned lightning protection for power supply is: simple in structure, cheap; Its shortcoming is: residual voltage is high, and leakage current is big, even when not having thunderbolt, decreases certainly, can't play due lightning protection effect.
For solving the problems of the technologies described above, necessary a kind of composite power supply lightning protection device is provided, to overcome said defective of the prior art.
[utility model content]
For addressing the above problem, the purpose of the utility model is to provide a kind of composite power supply lightning protection device that can effectively protect follow-up equipment to avoid the thunder and lightning infringement.
For realizing above-mentioned purpose, the technical scheme that the utility model is taked is: a kind of composite power supply lightning protection device, and it comprises piezo-resistance, gas discharge tube, divider resistance and Transient Suppression Diode; Wherein, the series connection of said Transient Suppression Diode and divider resistance is provided with; Said gas discharge tube with connect after the parallel connection of Transient Suppression Diode, divider resistance be provided with; The setting of connecting of gas discharge tube, Transient Suppression Diode, divider resistance after said piezo-resistance and the parallel connection.
The composite power supply lightning protection device of the utility model further is set to: the concrete number of said gas discharge tube is two, and these two gas discharge tube parallel connections are provided with.
Compared with prior art; The utlity model has following beneficial effect: the composite power supply lightning protection device of the utility model can realize accelerating the reaction speed of gas discharge tube; Thereby accelerate the operate time of lightning protection device, can effectively protect follow-up equipment to avoid the thunder and lightning infringement.
[description of drawings]
Fig. 1 is the schematic diagram of the composite power supply lightning protection device of the utility model.
[embodiment]
See also shown in the Figure of description 1, the utility model is a kind of composite power supply lightning protection device, and it is electrically connected by several elements such as piezo-resistance 1, gas discharge tube 2, divider resistance 3 and Transient Suppression Diode 4 and forms.
Wherein, 3 series connection are provided with said Transient Suppression Diode 4 with divider resistance, and this Transient Suppression Diode 4 surge that produces of can avoiding being struck by lightning causes damage to element.Said gas discharge tube 2 with connect after 3 parallel connections of Transient Suppression Diode 4, divider resistance be provided with.The setting of connecting of gas discharge tube 2, Transient Suppression Diode 4, divider resistance 3 after said piezo-resistance 1 and the parallel connection.
Further, the concrete number of said gas discharge tube 2 is two, and it works release thunder and lightning transient state overcurrent and over-voltage effect, and these two gas discharge tubes, 2 parallel connections are provided with.
The operation principle of the composite power supply lightning protection device of the utility model is following: from the angle of parasitic capacitance, C
Piezo-resistance＞C
Transient Suppression Diode＞C
Gas discharge tubeSo when lightning current produced, piezo-resistance 1, Transient Suppression Diode 4 and divider resistance 3 produced the dividing potential drop effect earlier, because the fast response time of Transient Suppression Diode is less than 1 nanosecond; Can improve the voltage at gas discharge tube 2 two ends rapidly; Excited gas discharge tube 2 punctures action, thereby makes response time from 100 nanoseconds of gas discharge tube 2 be increased to several nanoseconds, guarantees that lightning protection device can effectively protect follow-up equipment to avoid the thunder and lightning infringement.
Above embodiment is merely the preferred embodiment of this creation, not in order to limiting this creation, any modification of being made within all spirit and principles in this creation, is equal to replacement, improvement etc., all should be included within the protection range of this creation.
Claims (2)
1. a composite power supply lightning protection device is characterized in that: comprise piezo-resistance, gas discharge tube, divider resistance and Transient Suppression Diode; Wherein, the series connection of said Transient Suppression Diode and divider resistance is provided with; Said gas discharge tube with connect after the parallel connection of Transient Suppression Diode, divider resistance be provided with; The setting of connecting of gas discharge tube, Transient Suppression Diode, divider resistance after said piezo-resistance and the parallel connection.
2. composite power supply lightning protection device as claimed in claim 1 is characterized in that: the concrete number of said gas discharge tube is two, and these two gas discharge tube parallel connections are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202614103U CN202183600U (en) | 2011-07-22 | 2011-07-22 | Complex type power supply lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202614103U CN202183600U (en) | 2011-07-22 | 2011-07-22 | Complex type power supply lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183600U true CN202183600U (en) | 2012-04-04 |
Family
ID=46176622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202614103U Expired - Fee Related CN202183600U (en) | 2011-07-22 | 2011-07-22 | Complex type power supply lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023003A (en) * | 2012-11-26 | 2013-04-03 | 南京宁普防雷技术有限公司 | Over-voltage absorption circuit and over-voltage absorption device |
| CN110601162A (en) * | 2019-09-12 | 2019-12-20 | 深圳瓦特智汇科技有限公司 | Common mode surge protection circuit |
-
2011
- 2011-07-22 CN CN2011202614103U patent/CN202183600U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023003A (en) * | 2012-11-26 | 2013-04-03 | 南京宁普防雷技术有限公司 | Over-voltage absorption circuit and over-voltage absorption device |
| CN103023003B (en) * | 2012-11-26 | 2015-08-05 | 南京宁普防雷设备制造有限公司 | Overvoltage absorbing circuit and overvoltage absorbing device |
| CN110601162A (en) * | 2019-09-12 | 2019-12-20 | 深圳瓦特智汇科技有限公司 | Common mode surge protection circuit |
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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: 20120404 Termination date: 20150722 |
|
| EXPY | Termination of patent right or utility model |