CN203747498U - Lightning-protection distribution box - Google Patents
Lightning-protection distribution box Download PDFInfo
- Publication number
- CN203747498U CN203747498U CN201420054578.0U CN201420054578U CN203747498U CN 203747498 U CN203747498 U CN 203747498U CN 201420054578 U CN201420054578 U CN 201420054578U CN 203747498 U CN203747498 U CN 203747498U
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- China
- Prior art keywords
- lightning
- power supply
- circuit power
- piezo
- resistance
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- Expired - Fee Related
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Abstract
The utility model disclose a lightning-protection distribution box which comprises a main loop power supply, a primary lightning protection device, a first output end, a standby loop power supply and a self switching device, wherein the primary lightning protection device is connected with the main loop power supply, the first output end is connected with the main loop power supply, the self switching device is connected with the main loop power supply and the standby loop power supply, the standby loop power supply is connected with the first output end and the primary lightning protection device, and when the main loop power supply is powered off, the standby loop power supply is switched to supply power via the self switching device. Compared with the prior art, the lightning-protection distribution box uses the self switching device; and when the main loop power supply stops supplying power when being struck by lightning, the standby loop power supply supplies power to realize rapid and highly-efficient power supply.
Description
Technical field
The utility model relates to a kind of lightning-protection distribution box, relates in particular to a kind of lightning-protection distribution box with automatic switching function.
Background technology
Using electricity system at present, for example, as mobile base station, UNICOM base station, telecomm base station etc., generally these base stations are almost built in alpine belt, be easy to be struck by lightning, and unattended operation.In this place that The distance is far and the mountain is high, after power-off, need people for removing cut-in stand-by power supply, in the situation of long-time communicating interrupt, will certainly cause very large economic loss, after just needing power-off, this electric power system can automatically enable stand-by power supply, requirement simultaneously can effectively prevent thunder and lightning invasion, prevents from damaging electric power system and machine room internal unit.
The lightning-protection distribution box of prior art, adopts manual switching device (see figure 1), wants manual switching after power-off, brings a lot of inconvenience like this to attendant, also can cause very large economic loss.
The lightning-protection distribution box of prior art adopts one-level lightning protection, and this protection effect is also bad, and rear end residual voltage is high, can cause very large harm to precision equipment.
Utility model content
The purpose of this utility model is the defect that overcomes above-mentioned prior art, and a kind of lightning-protection distribution box with automatic switching function is provided.
A kind of lightning-protection distribution box, comprise main circuit power, first order lightning protection device, the first output, back-up circuit power supply and from conversion equipment, described first order lightning protection device is connected with described main circuit power, described the first output is connected with described main circuit power, describedly be connected with back-up circuit power supply with described main circuit power respectively from conversion equipment, described back-up circuit power supply is connected with described first order lightning protection device with described the first output, when described main circuit power power-off, describedly switch to described back-up circuit Power supply from conversion equipment.
Further, further comprise lightning current band stop filter, second level lightning protection device and the second output, described the second output is connected with back-up circuit power supply with described main circuit power through described lightning current band stop filter, and described second level lightning protection device is connected with the output of described lightning current band stop filter.
Further, described lightning current band stop filter comprises section breaker, spring, current sensor, lightning protection component, flow plug, relay, link gear and shell, in described section breaker and lightning protection component access channel, described current sensor is arranged on path, described flow plug and relay are arranged in bypass, described current sensor is connected with described relay, and described relay is connected with described link gear, and described link gear is connected with described section breaker.
Further, described first order lightning protection device adopts gas discharge tube, graphite gaps or piezo-resistance to carry out thunder and lightning earial drainage.
Further, described second level lightning protection device adopts piezo-resistance, and gas discharge tube or transient diode carry out thunder and lightning earial drainage.
Compare prior art, the utility model has adopted from conversion equipment, and in the time stopped power supply by thunder and lightning main circuit power, described back-up circuit power supply is powered, and is rapidly and efficiently powered.Further, be provided with lightning current band stop filter and second level lightning protection device, residual voltage is low, further provides protection to precision instrument.
Brief description of the drawings
Fig. 1 is the structure chart of the distribution box of prior art.
Fig. 2 is the structure chart of the lightning-protection distribution box of the utility model preferred embodiment.
Fig. 3 is the schematic diagram of the lightning current band stop filter of the utility model preferred embodiment.
Embodiment
Please refer to Fig. 2, the lightning-protection distribution box 100 of the utility model preferred embodiment comprises main circuit power 10, back-up circuit power supply 20, from conversion equipment 30, first order lightning protection device 40, second level lightning protection device 50, lightning current band stop filter 60, the first output 70 and the second output 80.
Described back-up circuit power supply 20 is stand-by power supply, after connecting with from conversion equipment 30, more in parallel with main circuit power 10.Powered by main circuit power 10 under normal conditions, damage or when other reason causes power-off at main circuit power 10, describedly switch to back-up circuit power supply 20 from conversion equipment 30 and power.
Described the first output 70 is connected with main circuit power 10, and described first order lightning protection device 40 is connected with the output of back-up circuit power supply 20 with described main circuit power 10.Described first order lightning protection device 40 plays lightning protection to described main circuit power and back-up circuit power supply.
The input of described lightning current band stop filter 60 is connected with the output of back-up circuit power supply 20 with described main circuit power 10, and its output is connected with described the second output 80, and is connected with described second level lightning protection device 50 simultaneously.Described second level lightning protection device 50 plays lightning protection to described the second output 80; the utility model arranges second level lightning protection device 50 at the second output 80 can further play lightning protection; eliminate the rear remaining residual voltage of first order lightning protection device 40 protection, protection components and parts are not struck by lightning.
Described first order lightning protection device 40 can adopt some gas discharge tubes, graphite gaps or piezo-resistance to carry out thunder and lightning earial drainage.Described second level lightning protection device 50 can adopt piezo-resistance, and gas discharge tube or transient diode provide further thunder and lightning earial drainage.
Refer to Fig. 3, described lightning current band stop filter 60, comprises an inductor L, the first piezo-resistance VR1 and the second piezo-resistance VR2, and described inductor L and described the first piezo-resistance VR1 and the second piezo-resistance VR2 are connected in series.Described the first piezo-resistance VR1 and the second piezo-resistance VR2 are parallel to described inductor L both sides.At described the first piezo-resistance VR1 the first parasitic capacitance C1 in parallel; Described the second piezo-resistance VR2 the second parasitic capacitance C2 in parallel.The utility model preferred embodiment is by realizing the function of lightning current frequency band band stop filter based on low pass filter.
Compare prior art, lightning-protection distribution box 100 of the present utility model has adopted from conversion equipment 30, and in the time stopped power supply by thunder and lightning main circuit power 10, described back-up circuit power supply 20 is powered, and is rapidly and efficiently powered.Further, be provided with lightning current band stop filter 60 and second level lightning protection device, residual voltage is low, further provides protection to precision instrument.Described the first output 70 is air-conditioning etc. is not subject to the power supply of thunderbolt equipment, and described the second output 80 is computer etc. is subject to the power supply of thunderbolt equipment.The utility model has adopted classification lightning protection power supply, not only can reduce the cost that supply network builds and safeguards.
More than describe preferred embodiment of the present utility model in detail, should be appreciated that the ordinary skill of this area just can be made many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art according to the utility model design on prior art basis by logic analysis, reasoning or according to the available technical scheme of limited experiment, all should be among by the determined protection range of these claims.
Claims (5)
1. a lightning-protection distribution box, comprise main circuit power, first order lightning protection device and the first output, described first order lightning protection device is connected with described main circuit power, described the first output is connected with described main circuit power, it is characterized in that: further comprise back-up circuit power supply and from conversion equipment, describedly be connected with back-up circuit power supply with described main circuit power respectively from conversion equipment, described back-up circuit power supply is connected with described first order lightning protection device with described the first output, when described main circuit power power-off, describedly switch to described back-up circuit Power supply from conversion equipment.
2. lightning-protection distribution box according to claim 1, it is characterized in that: further comprise lightning current band stop filter, second level lightning protection device and the second output, described the second output is connected with back-up circuit power supply with described main circuit power through described lightning current band stop filter, and described second level lightning protection device is connected with the output of described lightning current band stop filter.
3. lightning-protection distribution box according to claim 2, it is characterized in that: institute's lightning current band stop filter, comprise an inductor, the first piezo-resistance and the second piezo-resistance, described inductor and described the first piezo-resistance and the second piezo-resistance are connected in series, described the first piezo-resistance and the second piezo-resistance are parallel to described inductor both sides, in described the first piezo-resistance the first parasitic capacitance in parallel, described the second piezo-resistance the second parasitic capacitance in parallel.
4. lightning-protection distribution box according to claim 2, is characterized in that: described first order lightning protection device adopts gas discharge tube, graphite gaps or piezo-resistance to carry out thunder and lightning earial drainage.
5. lightning-protection distribution box according to claim 2, is characterized in that: described second level lightning protection device adopts piezo-resistance, and gas discharge tube or transient diode carry out thunder and lightning earial drainage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054578.0U CN203747498U (en) | 2014-01-27 | 2014-01-27 | Lightning-protection distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054578.0U CN203747498U (en) | 2014-01-27 | 2014-01-27 | Lightning-protection distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747498U true CN203747498U (en) | 2014-07-30 |
Family
ID=51347255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054578.0U Expired - Fee Related CN203747498U (en) | 2014-01-27 | 2014-01-27 | Lightning-protection distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359591A (en) * | 2017-09-07 | 2017-11-17 | 深圳锦天乐防雷技术有限公司 | The small base station distribution box for preventing switch trip that there is self-recovering function |
| CN108173251A (en) * | 2018-03-22 | 2018-06-15 | 佛山市新东方电子技术工程有限公司 | A kind of lightning protection circuit of alarm control system |
| CN112332823A (en) * | 2020-10-19 | 2021-02-05 | 北京动力源科技股份有限公司 | Direct current switch |
-
2014
- 2014-01-27 CN CN201420054578.0U patent/CN203747498U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359591A (en) * | 2017-09-07 | 2017-11-17 | 深圳锦天乐防雷技术有限公司 | The small base station distribution box for preventing switch trip that there is self-recovering function |
| CN108173251A (en) * | 2018-03-22 | 2018-06-15 | 佛山市新东方电子技术工程有限公司 | A kind of lightning protection circuit of alarm control system |
| CN108173251B (en) * | 2018-03-22 | 2023-12-01 | 佛山市新东方电子技术工程有限公司 | Lightning protection circuit of alarm control system |
| CN112332823A (en) * | 2020-10-19 | 2021-02-05 | 北京动力源科技股份有限公司 | Direct current switch |
| CN112332823B (en) * | 2020-10-19 | 2024-01-26 | 北京动力源科技股份有限公司 | DC switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210127 |