CN2922231Y - Lightning protected sleeve - Google Patents
Lightning protected sleeve Download PDFInfo
- Publication number
- CN2922231Y CN2922231Y CN 200620061409 CN200620061409U CN2922231Y CN 2922231 Y CN2922231 Y CN 2922231Y CN 200620061409 CN200620061409 CN 200620061409 CN 200620061409 U CN200620061409 U CN 200620061409U CN 2922231 Y CN2922231 Y CN 2922231Y
- Authority
- CN
- China
- Prior art keywords
- metal layer
- absorption metal
- lightning
- electromagnetic absorption
- thunder
- 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 - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 238000009422 external insulation Methods 0.000 claims abstract description 11
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 5
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 description 6
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
A lightning protected sleeve belongs to lightning protection technical field, which is mainly used to coat on the lower guiding wire of the lightning protection device to prevent induction electro-magnetic field damage the weak power device in the buildings when the lightning current flows through, and the integrated structure of which comprises an inner insulation layer, middle electro-magnetic absorption metal layer, an external insulation layer, wherein, the middle electro-magnetic absorption metal layer is arranged between the inner insulation layer and the external insulation layer with axial two sides disconnected and like a circular pipe with a radial opening of the whole. The corresponding circular arc degree is larger than 180 degrees. An inner screw and an external screw are separately arranged on middle electro-magnetic absorption metal layer on two ends. A plurality of lightning protected sleeves are connected together with the opening uniform outward in use. When the lightning is passing through the lower guiding wire, the middle electro-magnetic absorption metal layer can generate induction magnetic field and current. The induction current is connected through the ground by the middle electro-magnetic absorption metal layer, thereby protecting the electric devices in the protection chamber.
Description
Technical field
The utility model relates to the lightning protection device technical field, is specifically related to a kind of thunder-proof bushing.
Background technology
In shocking preventing technology, the harmful effect that the electromagnetic induction that following lead-in wire that uses and lead-in wire sleeve pipe produce when not considering thunderbolt when design causes the electronic equipment in the building, when lightning current passes through to go between down, cause the damage of building inner electronic equipment easily because of the forceful electric power magnetic induction of instantaneous generation.Lightning that thundercloud produces over the ground and thunderbolt are to form a very high potential difference owing to have the relative ground of thundercloud of a large amount of static nuclears, thereby produce strong discharge effect.Because thunder and lightning has moment property high voltage, big characteristics of current, behind powerful lightning strike, to produce electrostatic field, electromagnetic field, electromagnetic radiation, and lightning wave intrusion, earth potential counterattack etc., be referred to as Lightning Electromagnetic Pulse, seriously disturb the operate as normal of radio communication and various electronic monitoring equipments, cause many weak current equipments to damage within the specific limits, as camera, smoke detection siren, thunderstorm hour is the easiest to be destroyed various responsive weak current equipments such as temperature sensor running into.
The utility model content
The purpose of this utility model provides a kind of thunder-proof bushing, and when preventing that lightning current from passing through down lead-in wire, the induction field that is produced causes damage to relevant electronic and electrical equipment in the building.
To achieve these goals, the utility model adopts following technical scheme:
A kind of thunder-proof bushing, sleeve body with a tubular, sleeve body is made of inner insulating layer, middle electromagnetic absorption metal layer and external insulation layer, wherein, inner insulating layer, middle electromagnetic absorption metal layer and external insulation layer are integral structure, middle electromagnetic absorption metal layer is located at the centre of inside and outside insulating barrier, the pipe shape that the axial dual-side of middle electromagnetic absorption metal layer does not join and its integral body is have radial opening.
More excellent, the inner insulating layer of sleeve pipe one end protrudes and forms external screw thread with middle electromagnetic absorption metal layer, and the external insulation layer of the sleeve pipe other end protrudes and forms internal thread with middle electromagnetic absorption metal layer; Described internal thread and external screw thread are complementary.
After adopting technique scheme, some thunder-proof bushings can be linked together.
During use; thunder-proof bushing is inserted in the following lead-in wire of lightning protection; following lead-in wire is connected the earth separately by buried lead in the earth respectively with the middle electromagnetic absorption metal layer of thunder-proof bushing; when powerful lightning current passes through to go between down; around it, can produce very strong inductive electromagnetic; because the effect of the middle electromagnetic absorption metal layer of thunder-proof bushing; most of inductive electromagnetic radiation meeting produces electromagnetic induction and transforms electric current in middle electromagnetic absorption metal layer; thereby be absorbed; and will release away from the middle electromagnetic absorption metal layer of thunder-proof bushing, thereby play the interior various weak current equipments of protection building with faradic form.Because electromagnetic absorption metal layer is the opening ring-type of non-closure in the middle of the thunder-proof bushing; having seldom, the inductive electromagnetic of part lets out; the induced current of electromagnetic absorption metal layer also can discharge the secondary inductive electromagnetic radiation of trace in addition; but; the radiation of these leaks is very little; can't produce very big influence to indoor electric equipment, thereby reach the purpose of the indoor electronic and electrical equipment of protection.
Description of drawings
Fig. 1 is the structural representation of the utility model thunder-proof bushing embodiment one;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of the utility model thunder-proof bushing embodiment two;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is that the utility model thunder-proof bushing is applied to the structural representation in the lightning protection device;
Fig. 6 is the utility model thunder-proof bushing course of work principle schematic.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed explanation, arrive shown in Figure 6 as Fig. 1, middle electromagnetic absorption metal layer 1 is located in the middle of inner insulating layer 3 and the external insulation layer 2, the pipe shape that middle electromagnetic absorption metal layer 1 axial dual-side does not join and its integral body is have radial opening; The inner insulating layer 3 of sleeve pipe one end protrudes and forms external screw thread 11 with middle electromagnetic absorption metal layer 1, and the external insulation layer 2 of the sleeve pipe other end protrudes and forms internal thread 12 with middle electromagnetic absorption metal layer 1; Described internal thread 12 mates mutually with external screw thread 11.
Then be that middle electromagnetic absorption metal layer 1 integral body is all made shape of threads among Fig. 4, during use, intercept length as required, remove corresponding inner insulating layer 3 in an end of sleeve pipe then, be internal thread 12, remove corresponding external insulation layer 2, be external screw thread 11 at the other end of sleeve pipe.
During use, can be synchronous with building capital construction, pre-buried thunder-proof bushing of the present utility model goes between in the inside concrete of building body under reaching earlier when capital construction, because of thunder-proof bushing has the functional structure that joins end to end and connect, so can not be subjected to the restriction of depth of building.Connected mode is: the internal thread 12 of a thunder-proof bushing is screwed onto on the external screw thread 11 of another thunder-proof bushing, make opening looped, aligned that electromagnetic absorption metal layer in the middle of the thunder-proof bushing is non-closure outwardly, thunder-proof bushing is inserted in the following lead-in wire 4 of lightning protection, and the middle electromagnetic absorption metal layer 1 of following lead-in wire 4 and thunder-proof bushing connects the earth separately by buried lead 5 in the earth respectively.
As shown in Figure 6, as powerful lightning current I during by following lead-in wire 4, powerful lightning current I flows into the earth by lead-in wire 4 down and buried lead 5 in the earth; Meanwhile; powerful lightning current I is by going between 4 o'clock down; because it is big that immediate current becomes suddenly; around it, can produce very strong induced field E; on the middle electromagnetic absorption metal layer 1 of thunder-proof bushing, can absorb most of induced field E and transfer induced current I ' to and release away, thereby play the interior various weak current equipments of protection building through middle electromagnetic absorption metal layer.Because electromagnetic absorption metal layer is the opening ring-type of non-closure in the middle of the thunder-proof bushing; having seldom, the inductive electromagnetic E of part lets out; the induced current I ' of electromagnetic absorption metal layer 1 also can discharge the secondary inductive electromagnetic radiation of trace in addition; but the radiation of these leaks is very little; can't produce very big influence to indoor electric equipment, thereby reach the purpose of the indoor electronic and electrical equipment of protection.
This thunder-proof bushing also can be arranged at outdoor.
Claims (3)
1. thunder-proof bushing, sleeve body with a tubular, it is characterized in that sleeve body is made of inner insulating layer, middle electromagnetic absorption metal layer and external insulation layer, wherein, inner insulating layer, middle electromagnetic absorption metal layer and external insulation layer are integral structure, middle electromagnetic absorption metal layer ring is located in the middle of the inside and outside insulating barrier, the pipe shape that the axial dual-side of middle electromagnetic absorption metal layer does not join and its integral body is have radial opening.
2. thunder-proof bushing according to claim 1, the circular arc degree that it is characterized in that described middle electromagnetic absorption metal layer is greater than 180 degree.
3. thunder-proof bushing according to claim 1 and 2, it is characterized in that the inner insulating layer protrusion of sleeve body one end and form external screw thread with middle electromagnetic absorption metal layer, the external insulation layer of the sleeve pipe other end protrudes and forms the internal thread that is complementary with the sleeve body external screw thread with middle electromagnetic absorption metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061409 CN2922231Y (en) | 2006-07-10 | 2006-07-10 | Lightning protected sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061409 CN2922231Y (en) | 2006-07-10 | 2006-07-10 | Lightning protected sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2922231Y true CN2922231Y (en) | 2007-07-11 |
Family
ID=38254702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620061409 Expired - Lifetime CN2922231Y (en) | 2006-07-10 | 2006-07-10 | Lightning protected sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2922231Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009203A1 (en) * | 2006-07-10 | 2008-01-24 | Lianjun Li | A lightning resistive bush and manufacute procedure thereof |
| CN103826794A (en) * | 2011-09-27 | 2014-05-28 | 波音公司 | Bushing for use in providing electromagnetic effects protection |
| CN109868727A (en) * | 2019-04-09 | 2019-06-11 | 浙江省交通规划设计研究院有限公司 | Butt joints, prefabricated elements and piers |
-
2006
- 2006-07-10 CN CN 200620061409 patent/CN2922231Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009203A1 (en) * | 2006-07-10 | 2008-01-24 | Lianjun Li | A lightning resistive bush and manufacute procedure thereof |
| CN103826794A (en) * | 2011-09-27 | 2014-05-28 | 波音公司 | Bushing for use in providing electromagnetic effects protection |
| CN103826794B (en) * | 2011-09-27 | 2017-04-19 | 波音公司 | Bushing for use in providing electromagnetic effects protection |
| CN109868727A (en) * | 2019-04-09 | 2019-06-11 | 浙江省交通规划设计研究院有限公司 | Butt joints, prefabricated elements and piers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20070042315A (en) | A ground rod and connection sleeve filled with compound of electric comduction | |
| CN105023668A (en) | Zinc oxide arrester for power plant | |
| KR100858354B1 (en) | Ground rod for power equipment and telecommunication with spiral conductive wire | |
| CN2922231Y (en) | Lightning protected sleeve | |
| CN102227077A (en) | Tower arrangement structure at cable terminal | |
| CN206379622U (en) | The integrated active Initiative Defence System of direct lightning strike | |
| CN201191707Y (en) | Improved induction lightning arrester | |
| CN202103417U (en) | Lightning protection device for integrated logging instrument | |
| CN100492792C (en) | A kind of lightning protection bushing and its production process | |
| CN106229701A (en) | A kind of installation method of graphite-based flexible ground body | |
| CN202004400U (en) | Cable terminal support arrangement structure | |
| CN103474975B (en) | A kind of thunder-lightning nano magnetic choke apparatus | |
| CN203504165U (en) | A lightning protection grounding system | |
| CN204271633U (en) | A kind of Industry Control line lightning protection device structure of improvement | |
| CN204885829U (en) | Isolated lightning protection device for outdoor equipment | |
| CN204142264U (en) | Anti-lightning strike sensor | |
| Patel | Effect of lightning on building and its protection measures | |
| CN204257253U (en) | Novel building lightning protection cable | |
| CN201444331U (en) | High-voltage pulse isolator | |
| CN208955654U (en) | A kind of signal wire nuclear electromagnetic pulse protector | |
| CN209419172U (en) | Windage yaw defence installation | |
| CN204271496U (en) | A kind of modified model casing lightning protection device structure | |
| CN206657868U (en) | Earthing or grounding means and earthed system | |
| CN205846263U (en) | Grounding body structure based on graphite-based flexible ground body | |
| CN2821951Y (en) | Inductance lightning arrester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060710 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |