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CN201387990Y - Lightning rod arrester with forward-direction and side-direction lightning striking capacity - Google Patents

Lightning rod arrester with forward-direction and side-direction lightning striking capacity Download PDF

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Publication number
CN201387990Y
CN201387990Y CN200820131717U CN200820131717U CN201387990Y CN 201387990 Y CN201387990 Y CN 201387990Y CN 200820131717 U CN200820131717 U CN 200820131717U CN 200820131717 U CN200820131717 U CN 200820131717U CN 201387990 Y CN201387990 Y CN 201387990Y
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China
Prior art keywords
lightning
cone
sudden strain
lightning rod
thunder
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Expired - Fee Related
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CN200820131717U
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Chinese (zh)
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叶林
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Individual
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Individual
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Abstract

The utility model relates to a lightning rod arrester with a maximum forward-direction and side-direction lightning striking capacity. The lightning rod arrester comprises a metal material with high strength, good wearability and good conductivity and a structure with the maximum lightning striking capacity formed in a certain size and the shape, wherein the arrester with the structure is in the basic shape of a cone, a first-tap body, a second-tap body, a third-tap body, a fourth-tap body or and a fifth-tap body; the length of the cone of the arrester ranges from 5mm to 5000mm; the height of the cone ranges from 5mm to 5000mm; and the taper angle of the cone ranges from 20degrees to 70 degrees. The arrester with the structure has the maximum forward-direction and side-direction lightning striking capacity.

Description

Having forward and side direction draws the lightning rod of thunder ability and connects the sudden strain of a muscle body
(1), technical field
The utility model patent relates to the vitals that a kind of lightning rod uses and connects the sudden strain of a muscle body, and this connecing dodged body and had best forward and side direction and draw the thunder ability.
(2), background technology
The protection reliability of lightning rod is decided by to connect the ability that body draws thunder of dodging, and classical lightning rod connects the sudden strain of a muscle theory that connects of dodging body and thinks:
At place, the tip of electrified body, charge density is very big, thereby near field intensity is also very big, so that can make the ambient air partial breakdown, but this is hitting to dodge essential distinction being arranged of a kind of point discharge characteristic of electrostatic field and thunder and lightning field:
The point discharge of electrostatic field is meant the avalanche breakdown phenomenon of pretending the air molecule of using and taking place over against the electrode bay of plate shaped electrode and needle point shape.
Thunder and lightning field launch a surprise attack discharge, be the most advanced and sophisticated formula lightning rod in Franklin draw the thunder principle, it is the principle of utilizing the point discharge of electrostatic field, but this is the understanding of a mistake, the principle of the point discharge of electrostatic field is a special case that needlepoint electrode is less over against plate electrode and spacing, the time is long, and lightning rod draws guide's potential energy W of thunder:
W=1/2∫σψdS
In electrostatic field, the free electron at needle point place is under the electrostatic field of needle point, do directed moving, make the surface produce charge inducing σ dS, be used as with the time when longer, the distance that electronic integral moves is just bigger, accordingly just assemble more electric charge, but in thunder and lightning field, the time of general thunder and lightning effect is very short at the needle point place, in this extremely short time, the charge source at most advanced and sophisticated place moves in the orientation of needle point place electronics.
The source of the current universally recognized needle point of lightning protection circle place electric charge be upward leader with electric charge:
When the thunder and lightning cloud layer forms, produced an electric field (atmosphere) between cloud layer and the ground, this electric field strength can reach 500 kilovolts/meter (about 400~500 kilovolts/meter of air breakdown field intensity, 600~1200 meters of distances on general thunder cloud and ground).Begin to occur corona discharge on ground projection or the metal parts thereby make.
When descending guide of the inner formation of thunder and lightning cloud layer, the lightning electric shock has just begun.Descending guide's electric charge moves earthward with the ladder form.The electric charge that descending guide is carrying makes ground set up electric field.
Produced a up guide from above ground structure or object.This upward leader is upwards propagated until join with descending guide.At this moment, conducting lightning currents is just tided over formed passage.Ground other buildings may form several upward leader.First upward leader of joining with descending guide has determined the place that lightning shocks by electricity.
Because lightning rod is than the building object height of protection, the upward leader on the lightning rod arrester might first become passage with descending guide neutralization, and the energy of thundercloud has been eliminated the thunderbolt possibility of protected object by the lightning rod the earth of releasing.
The theoretical foundation of these technical measures is thought:
1, the thunder ability of drawing of lightning rod depends on the sharp-pointed field intensity at the needle point place of lightning rod;
2, produce the charge source of the sharp-pointed field intensity in lightning rod needle point place in upward leader, here the indication upward leader is a kind of up electric charge, directly point out in the data explanation that has, upward leader is responded to from the earth, by the thundercloud electric field action and up, carry by the lightning rod system, upward leader is transported to connecing of lightning rod to the charges of different polarity that produce in the earth endlessly and dodges on the body, in and thundercloud charge.
The basic reason of hitting sudden strain of a muscle principle mistake of this direct stroke is the speed of the electric field of thundercloud action space and is in the thundercloud electric field action space, speed by the directed electronics that moves freely that moves in the lightning rod of thundercloud electric field action lumps together, in fact the speed of thunder and lightning field effect is the light velocity, and only is 0.000006 meter per second by the speed of the directed single electronics that moves in the lightning rod of thunder and lightning field effect.
The electric charge that moves in the lightning rod system has only a kind of, and that is exactly the free electron of lightning rod system itself, do not exist from " charges of different polarity that produce the earth be transported to endlessly connecing of lightning rod dodge on the body in and electric charge ".
Connect the free electron that dodges the surface perpendicular to connecing under the thundercloud vector electric field effect of dodging the surface, the directed speed that moves only is 0.000006 meter per second, in the very short time of thunder and lightning effect, the electric charge of conductive surface almost can be thought even distribution, charge density at the needle point place derives from the movement of electrons in needle point place own, and the electric charge at needle point place and the electric charge of surface are evenly to move; And what produce this charge number is by perpendicular to the effective surface area decision of the thundercloud vector field direction on surface; the induced field strength that produces is perpendicular to connecing the surface of dodging body; the intensity that promptly connects the induced field strength that dodges body acupuncture point place is decided by the quantity of the charge inducing at needle point place; under very short situation of time; connect the field intensity of dodging body acupuncture point place and connect the relation that the tapering that dodges body does not have essence; relevant with tapering is protection range, and the available following situation of in fact this relation is correctly described:
When meeting the forward thunderbolt, tapering is big more, and more little over against the effective surface area of thunder and lightning field, the induction lightening lotus is more little, the induced field strength that produces is less relatively, when tapering maximum (cone angle be zero), the induced field strength of side direction is zero, when tapering minimum (cone angle is 90 degree), the induced field strength of forward is maximum, in the process that tapering changes, the field intensity at needle point place can be thought not to be had to change, and is maximum.
When meeting the thunderbolt of side direction level, tapering is big more, effective surface area over against thunder and lightning field is big more, and the induction lightening lotus is many more, and the induced field strength of generation is stronger relatively, when tapering maximum (tapering be zero), the induced field strength of side direction is maximum, and when tapering minimum (cone angle is 90 degree), the induced field strength of side direction be a minimum, the field intensity at needle point place can be thought not to be had to change, and is the null value of minimum.
The lightning rod of this needle point formula is the structure of an effective area minimum, and using effective prerequisite only is special case over against the front thundercloud electric field of needle point, and the side direction thundercloud that is in around the needle point is not effectively drawn the thunder ability.
The prerequisite of the protection reliability of lightning rod is the thunder ability of drawing that reliable attraction thundercloud guide electric field will be arranged, and the thundercloud guide around the protected object is attracted to connect dodges on the body, could guarantee to be guaranteed the safety of object.
And the lightning rod of this needle point formula has only the thunder ability of drawing of the minimum of forward, and does not have the thunder ability of drawing of side direction.
The out and out technological deficiency that this needle point formula lightning rod has been described of the thunderbolt of Huang Island oil depot.
(3), the utility model patent technical problem to be solved: be to solve to connect and dodge the effective area of body over against the thundercloud electric field; make to connect and dodge body and have a kind of forward of maximum and the structure of side direction effective surface area; connect and dodge body under the effect of thundercloud vertical vector field; produce maximum charge inducing on the surface; this charge inducing produces the induced field strength perpendicular to the surface on the surface; thereby make to connect and dodge the induced field strength that body has maximum; take into account the effective surface area of forward and side direction simultaneously, dodge body and have maximum forward and side direction protection range and draw the thunder ability thereby make to connect.
Described this lightning rod connects the sudden strain of a muscle body, select a kind of intensity, corrosion resistant, electric conductivity good metal material for use, be processed into a kind of the have long-pending cone of best forward and lateral surface or a cone or two cones or three cones, four cones, five cone structures.Described these shape and structures connect the sudden strain of a muscle body, the length L of its cone base is between the 5-5000 millimeter, the described this sudden strain of a muscle body that connects, the height H of its cone is between the 5-5000 millimeter, the described this sudden strain of a muscle body that connects, the basic taper angle theta of its cone is between the 20-70 degree.
Preferably, connect a kind of cast iron of sudden strain of a muscle body and function, cast copper, cast aluminium or other alloy and cast the said structure shape that needs.
Preferably, connect a kind of iron of sudden strain of a muscle body and function, copper, aluminium or other sheet alloy and strike out the said structure shape that needs.
Of the present utility model a kind ofly have forward and side direction and draw the lightning rod of thunder ability and connect the beneficial effect that dodges body and be:
The present invention connects the sudden strain of a muscle body and has the effective surface area of side direction and forward; produce maximum charge inducing from the teeth outwards; the induced field strength that this charge inducing produces has the maximum thunder ability of drawing; charged thundercloud guide electric field attracts is being connect the way of dodging on the body; overcome single needle needle point formula and connect the shortcoming of dodging the introductory note thunder ability of body; overcome ball-shaped and connect the shortcoming that sudden strain of a muscle body self slackens induction; overcome spininess needle point formula and connect the disorder of sudden strain of a muscle body induced field strength; draw the worse shortcoming of thunder ability; reduced and connect the potential safety hazard of dodging the body shielding; enlarged the scope of protection; wide accommodation, protection reliability height.
(4), description of drawings
Wherein Fig. 1 is a cone;
Fig. 2 is a cone;
Fig. 3 is two cones;
Fig. 4 is three cones;
Fig. 5 is four cones;
Fig. 6 is five cones.
(5) embodiment
Below in conjunction with embodiment patent of the present invention is further specified, but the protection range of the utility model patent is not limited to this.
With reference to Fig. 1, described a kind ofly have forward and side direction and draw the lightning rod of thunder ability and connect the sudden strain of a muscle body, the effective surface area that body is taken into account side direction (four sides) and forward is simultaneously dodged in connecing of this structure, the thundercloud vector field acts on perpendicular to the component of surface area and connects the sudden strain of a muscle body, make directed the moving of free electron in the surface area, produce charge inducing on the surface, the induced field strength that charge inducing produces, attraction connects the thunder and lightning field sensing of dodging body top or side direction and connects the sudden strain of a muscle body, draws the thunder effect reliably thereby lightning rod is play.
Fig. 1 is a kind of conical structure, has forward and draws the thunder ability all around uniformly, is applicable to the protection of less center range;
Fig. 2 is a cone structure, has the protection of forward and a certain preferably oriented sideways, is applicable to focused protection in a certain respect;
Fig. 3 two cones have forward and a certain focused protection to direction;
Fig. 4, Fig. 5, Fig. 6 have stronger forward and side direction protective capability.
Connect and dodge the protection range that body cone base length L and cone height H and taper theta have determined to connect the sudden strain of a muscle body.
This connecing dodged body and had the very strong thunder ability of drawing, therefore easily as consumption thunder type prevention eliminating needle connect the sudden strain of a muscle body, the effect of its performance is that the lightning rod of other type is incomparable.

Claims (5)

1, a kind of have forward and side direction and draw the lightning rod of thunder ability and connect the sudden strain of a muscle body, comprises a kind of intensity, rotproofness and electric conductivity good metal material, it is characterized in that connecing dodging that body has bigger forward and lateral surface is long-pending.
2, the sudden strain of a muscle body that connects according to claim 1, it is characterized in that described connect dodge body be shaped as cone or a cone or two cones or three cones or four cones or five cones.
3, the sudden strain of a muscle body that connects according to claim 2 is characterized in that the described length of sudden strain of a muscle body cone base that connects is between the 5-5000 millimeter.
4, the sudden strain of a muscle body that connects according to claim 2 is characterized in that the described height of sudden strain of a muscle body cone that connects is between the 5-5000 millimeter.
5, the sudden strain of a muscle body that connects according to claim 2 is characterized in that: the described basic cone angle of sudden strain of a muscle body cone that connects is between the 20-70 degree.
CN200820131717U 2008-07-23 2008-07-23 Lightning rod arrester with forward-direction and side-direction lightning striking capacity Expired - Fee Related CN201387990Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200820131717U CN201387990Y (en) 2008-07-23 2008-07-23 Lightning rod arrester with forward-direction and side-direction lightning striking capacity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200820131717U CN201387990Y (en) 2008-07-23 2008-07-23 Lightning rod arrester with forward-direction and side-direction lightning striking capacity

Publications (1)

Publication Number Publication Date
CN201387990Y true CN201387990Y (en) 2010-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200820131717U Expired - Fee Related CN201387990Y (en) 2008-07-23 2008-07-23 Lightning rod arrester with forward-direction and side-direction lightning striking capacity

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095944A (en) * 2010-12-08 2011-06-15 桐庐科瑞电子科技有限公司 Precise prewarning system of direct stroke in protection range
CN102354910A (en) * 2011-09-20 2012-02-15 桐庐峰云科技有限公司 Induced lightning conductor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095944A (en) * 2010-12-08 2011-06-15 桐庐科瑞电子科技有限公司 Precise prewarning system of direct stroke in protection range
CN102095944B (en) * 2010-12-08 2013-04-03 桐庐科瑞电子科技有限公司 Precise prewarning system of direct stroke in protection range
CN102354910A (en) * 2011-09-20 2012-02-15 桐庐峰云科技有限公司 Induced lightning conductor
CN102354910B (en) * 2011-09-20 2015-10-28 桐庐峰云科技有限公司 Induction type lightning rod

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