CN202651618U - Predischarging current-limiting lightning rod - Google Patents
Predischarging current-limiting lightning rod Download PDFInfo
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- CN202651618U CN202651618U CN 201220141969 CN201220141969U CN202651618U CN 202651618 U CN202651618 U CN 202651618U CN 201220141969 CN201220141969 CN 201220141969 CN 201220141969 U CN201220141969 U CN 201220141969U CN 202651618 U CN202651618 U CN 202651618U
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Abstract
The utility model relates to a predischarging current-limiting lightning rod which comprises a main needle, an upper part and a lower part of a closed insulating tube, an energy storage device, an upper ring, a lower ring, an auxiliary needle, a current-limiting device and a base. The main needle is vertically upward, is located at the center of the whole lightning protection device, is connected with the upper end of the energy storage device through a metal connector, and is fixed on the upper part of the closed insulating tube. The energy storage device is connected with the upper ring, the upper end of the current-limiting device through a metal pressure sheet and is fixed on the closed insulating tube. 6 to 8 auxiliary needles are evenly distributed on the upper ring and the lower ring. The lower end of the current-limiting device is welded with the metal base. According to the utility model, upstream development of leader leads a thundercloud to discharge, thus the amplitude and rise gradient of lightning current can be effectively limited and lightning destructiveness is greatly reduced.
Description
Technical field
The utility model relates to a kind of pre-arcing current-limited arrester.
Background technology
Existing lightning rod is made of with the earthing device that is connected with arrester arrester mostly, has the effect that guides and the thundercloud discharge passage is provided, therefore the electric current that usually has tens of kilo-amperes and kilo-amperes up to a hundred flows into the earth through lightning rod, and lightning current steepness is very big, can cause the rising of surface potential, the secondary that produces thunderbolt effect and earth potential counterattack effect, can cause the damage of protected object; Simultaneously, can forming induction field in the space all around, bring potential safety hazard to weak current equipment and combustible and explosive articles behind the powerful thunder and lightning inflow place.The shortcomings such as the passive mode of drawing thunder of conventional lightning conductor also exists protection range little simultaneously, and the shielding failure rate is higher.
Chinese utility model patent " pilot type lightning arrester " (application number: CN200820080802.8) disclose a kind of pilot type lightning arrester, collecting bar, inductive needle, holder and exciter by central authorities forms, central authorities collect bar and link to each other with holder by insulator, the holder sidepiece has inductive needle, the end of holder vertical component is fixed with exciter, and described exciter has adjustable arc pin array.This lightning rod has improved the pre-arcing performance of conventional pilot type lightning arrester, has expanded usage range.Although this lightning rod structure is comparatively simple, the effect that its triggered lightning stream ascending charge discharges thundercloud charge is desirable not enough, does not also solve the problem of the excessive lightning rod current limliting of thunder and lightning.
Chinese utility model patent " in and current-limiting lightning arrester " (application number: CN96250927.2) disclose a kind of in and current-limiting lightning arrester; formed by guiding device, prevention eliminating needle, current-limiting apparatus, same cable, insulating part, support etc.; thunder and lightning is except eliminating by lightning rod; simultaneously can eliminate rapidly lightning strike by guiding device and current-limiting apparatus, the protection implement safety.It is excessive to protection thing this problem that threatens that this patent does not solve the thunder and lightning power.
The utility model content
For the deficiency of background technology, the utility model overcomes the shortcoming of conventional lightning conductor, discharges thundercloud charge and increases current-limiting apparatus by triggered lightning stream ascending charge and suppress descending amplitude of lightning current and rising steepness, reduces lightning current protected object is caused damage.
The technical scheme that the utility model adopts is: a kind of pre-arcing current-limited arrester, comprise part on main pin, the sealing insulated tube, seal part under the insulated tube, energy storage device, upper ring and lower ring and auxiliary pin formation, the main pin the latter half that is connected with the earth is divided parcel by part on the sealing insulated tube and sealing insulated tube bottom, energy storage device is connected metal sheeting with pressed on ring and connects, it is characterized in that: pressed on ring and main needle set have good electrical connection, lower ring and the insulation of main pin, auxiliary pin is arranged between the upper ring and a lower ring, and descend ring and auxiliary pin to be processed by metallic conductor.Its beneficial effect is: cause thundercloud discharge by the development upward leader, shift to an earlier date discharge time than conventional lightning conductor, draw the thunder capability improving, and obtain larger protection range.
Aforesaid pre-arcing current-limited arrester is characterized in that: also comprise current-limiting apparatus, current-limiting apparatus is connected metal sheeting with energy storage device with pressed on ring and is connected.Its beneficial effect is: by current-limiting apparatus is set, can effectively limit amplitude and the rising steepness of lightning current in discharge circuit, the destructiveness of thunder and lightning is significantly reduced.
Aforesaid pre-arcing current-limited arrester is characterized in that: current-limiting apparatus is wire coil, resistive element or other magnetic coils.Its beneficial effect is: can realize current limliting with conventional means.
Aforesaid pre-arcing current-limited arrester is characterized in that: pressed on ring is processed by metal and the annulus edge is lower arcuation.Its beneficial effect is: so both can reduce the resistance of wind, can also prevent ponding.
Aforesaid pre-arcing current-limited arrester is characterized in that: auxiliary pin is 6,7 or 8, is uniformly distributed between the upper ring and a lower ring.Its beneficial effect is: can realize that upward leader causes thundercloud discharge, guarantee again auxiliary pin reasonable quantity.
Description of drawings
Fig. 1 is the utility model pre-arcing current-limited arrester schematic diagram.
Embodiment
Description of reference numerals: on main pin 1, connector 2, the sealing insulated tube under part 3, energy storage device 4, pressed on ring 5, fixture 6, lower ring 7, auxiliary pin 8, the sealing insulated tube part 9, current-limiting apparatus 10 and base 11 consist of
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, a kind of pre-arcing current-limited arrester, comprise on main pin 1, connector 2, the sealing insulated tube that part 9, energy storage device 4, pressed on ring 5, fixture 6, lower ring 7, auxiliary pin 8, current-limiting apparatus 10 and base 11 consist of under part 3, the sealing insulated tube, main pin vertically upward, be in whole lightning arrester center, main pin 1 the latter half that is connected with the earth is by part 9 parcels under part 3 on the sealing insulated tube and the sealing insulated tube.Main pin 1 is fixed on the sealing insulated tube on the part 3 by connector 2, and connector 2 is made of metal.
Pressed on ring 5 is fixed on the sealing insulated tube on the part 3 by fixture 6, and fixture 6 is 4～6 Metallic rod and rosette.The rosette center is provided with circular hole, and energy storage device lower end and current-limiting apparatus welding also are fixed in the rosette center.Pressed on ring 5 and lower ring 7 are provided with corresponding circular hole, between pressed on ring 5 and the lower ring 7 auxiliary pin 8 is arranged, auxiliary pin 8 is installed between the circular hole of pressed on ring 5 and lower ring 7, auxiliary pin 8 is preferably 6～8, evenly be fixed on the lower ring 7 by screw thread, and auxiliary pin 8 length preferably equal pressed on ring 5 and lower ring 7 spacings and needle point and just in time occupy in ring 5 apertures, and lower ring 7 and auxiliary pin 8 process by metallic conductor, and lower ring 7 is fixed under the sealing insulated tube on the part 9 by 4～6 Metallic rod and metal anchor ear.Pressed on ring 5 has the good electrical switching performance with main pin 1, lower ring 7 and main pin insulation, and pressed on ring 5 is processed by metal and the annulus edge is lower arcuation, so both can reduce the resistance of wind, can also prevent ponding.
Be provided with successively energy storage device 4 and current-limiting apparatus 10 between main pin 1 and the earth; current-limiting apparatus 10 can wire coil, resistive element and other magnetic coils; energy storage device 4, pressed on ring 5 are connected the upper end and are connected by metal sheeting with current-limiting apparatus; current-limiting apparatus 10 lower ends are welded with base 11 and are not contacted with sealing insulated tube inwall; base 11 can be processed into metal, is fixed in the top of protected object.
Above-mentioned pre-arcing current-limited arrester, before thundercloud discharged over the ground, energy storage device was in the energy storage operating mode, and simultaneously the thundercloud electric field encircles 7 potential rises to encircling 7 and the earth capacitance charging.After discharge occurs, the energy storage device action, main pin and ring 5 instant earthings, the needle point electric field distortion encircles 7 current potentials constant, and electric charge upwards discharges by auxiliary pin and aperture it on, increases the needle point quantity of electric charge, impels the needle point generation guide that upwards discharges, and connects sudden strain of a muscle with thundercloud is descending.Lightning current flows into the earth by main pin, and the current-limiting apparatus action reduces lightning current amplitude and rising steepness, reduces the threat of Lightning Over-voltage.But energy storage device repetitive operation is switched, and has guaranteed effective initiation of upward leader.
Claims (5)
1. pre-arcing current-limited arrester, comprise part on main pin, the sealing insulated tube, seal part under the insulated tube, energy storage device, upper ring and lower ring and auxiliary pin formation, the main pin the latter half that is connected with the earth is divided parcel by part on the sealing insulated tube and sealing insulated tube bottom, energy storage device is connected metal sheeting with pressed on ring and connects, it is characterized in that: pressed on ring and main needle set have good electrical connection, lower ring and the insulation of main pin, auxiliary pin is arranged between the upper ring and a lower ring, and descend ring and auxiliary pin to be processed by metallic conductor.
2. pre-arcing current-limited arrester as claimed in claim 1, it is characterized in that: also comprise current-limiting apparatus, current-limiting apparatus is connected metal sheeting with energy storage device with pressed on ring and is connected.
3. pre-arcing current-limited arrester as claimed in claim 2, it is characterized in that: described current-limiting apparatus is wire coil, resistive element or other magnetic coils.
4. pre-arcing current-limited arrester as claimed in claim 1 or 2, it is characterized in that: pressed on ring is processed by metal and the annulus edge is lower arcuation.
5. pre-arcing current-limited arrester as claimed in claim 1 or 2, it is characterized in that: auxiliary pin is 6,7 or 8, is uniformly distributed between the upper ring and a lower ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220141969 CN202651618U (en) | 2012-04-06 | 2012-04-06 | Predischarging current-limiting lightning rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220141969 CN202651618U (en) | 2012-04-06 | 2012-04-06 | Predischarging current-limiting lightning rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651618U true CN202651618U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220141969 Expired - Lifetime CN202651618U (en) | 2012-04-06 | 2012-04-06 | Predischarging current-limiting lightning rod |
Country Status (1)
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| CN (1) | CN202651618U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560399A (en) * | 2013-11-18 | 2014-02-05 | 武汉爱劳高科技有限责任公司 | Direct lightning protective device with early discharging function and lightning current limiting function |
| CN103956655A (en) * | 2014-04-16 | 2014-07-30 | 宁海县雁苍山电力设备厂 | Lightning arrester and manufacturing technology thereof |
| CN104362513A (en) * | 2014-11-25 | 2015-02-18 | 辽宁华隆电力科技有限公司 | Outer-series-gap arrester with discharging adjustable |
| CN106410613A (en) * | 2016-10-20 | 2017-02-15 | 钟立朋 | Lightning rod |
| CN109861196A (en) * | 2019-02-28 | 2019-06-07 | 王鑫 | A kind of lightning protection device |
| CN111555117A (en) * | 2020-05-19 | 2020-08-18 | 武汉市民奕科技有限公司 | Bipolar optimized lightning rod |
-
2012
- 2012-04-06 CN CN 201220141969 patent/CN202651618U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560399A (en) * | 2013-11-18 | 2014-02-05 | 武汉爱劳高科技有限责任公司 | Direct lightning protective device with early discharging function and lightning current limiting function |
| CN103560399B (en) * | 2013-11-18 | 2015-05-20 | 武汉爱劳高科技有限责任公司 | Direct lightning protective device with early discharging function and lightning current limiting function |
| CN103956655A (en) * | 2014-04-16 | 2014-07-30 | 宁海县雁苍山电力设备厂 | Lightning arrester and manufacturing technology thereof |
| CN103956655B (en) * | 2014-04-16 | 2016-03-09 | 象山一山工业设计有限公司 | Lighting protection arrester and manufacturing process thereof |
| CN104362513A (en) * | 2014-11-25 | 2015-02-18 | 辽宁华隆电力科技有限公司 | Outer-series-gap arrester with discharging adjustable |
| CN106410613A (en) * | 2016-10-20 | 2017-02-15 | 钟立朋 | Lightning rod |
| CN109861196A (en) * | 2019-02-28 | 2019-06-07 | 王鑫 | A kind of lightning protection device |
| CN111555117A (en) * | 2020-05-19 | 2020-08-18 | 武汉市民奕科技有限公司 | Bipolar optimized lightning rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |