Lightning suppression type arrester

Abstract

Provided is a lightning suppression type arrester that can easily increase a quantity of negative charges required for lightning suppression while simplifying workability associated with installation as much as possible. A lightning suppression type arrester for suppressing lightning on a structure includes a charged body made of a conductive material provided in an electrically insulated state on a top of the structure, a first electrode body including a capacitor electrically connected to the charged body, the capacitor being installed on a ground and electrically connected to the ground, and a second electrode body opposed to the first electrode body via an electrical insulating layer to store an electric charge by a capacitance between the first electrode body and the second electrode body, in which the second electrode body is electrically connected to the charged body.

Claims

1. A lightning suppression type arrester for suppressing lightning on a structure, the lightning suppression type arrester comprising: a charged body made of a conductive material provided on the top of the structure and electrically insulated from the structure; a capacitor electrically connected to the charged body; wherein the capacitor including: a first electrode body being installed on a ground and electrically connected to the ground; a second electrode body opposed to the first electrode body via an electrical insulating layer to store an electric charge by a capacitance between the first electrode body and the second electrode body; wherein the second electrode body is electrically connected to the charged body.

2. The lightning suppression type arrester according to claim 1, wherein the structure corresponds to a pagoda or a Buddhist temple, and the charged body corresponds to a jewel provided on a top of the pagoda or the Buddhist temple.

3. The lightning suppression type arrester according to claim 2, wherein an installation location of the capacitor is higher than a surrounding ground.

4. The lightning suppression type arrester according to claim 2, wherein a plurality of capacitors is provided.

5. The lightning suppression type arrester according to claim 1, wherein the structure corresponds to a castle tower, and the charged body corresponds to a shachihoko provided on a top of the castle tower.

6. The lightning suppression type arrester according to claim 5, wherein an installation location of the capacitor is higher than a surrounding ground.

7. The lightning suppression type arrester according to claim 5, wherein a plurality of capacitors is provided.

8. The lightning suppression type arrester according to claim 1, wherein the structure corresponds to a windmill, and the charged body corresponds to a receptacle provided at a blade tip of the windmill.

9. The lightning suppression type arrester according to claim 8, wherein a plurality of capacitors is provided.

10. The lightning suppression type arrester according to claim 1, wherein the structure corresponds to a building or a house, and the charged body corresponds to a lightning rod provided in the building or the house.

11. The lightning suppression type arrester according to claim 8, wherein an installation location of the capacitor is higher than a surrounding ground.

12. The lightning suppression type arrester according to claim 10, wherein an installation location of the capacitor is higher than a surrounding ground.

13. The lightning suppression type arrester according to claim 10, wherein a plurality of capacitors is provided.

14. The lightning suppression type arrester according to claim 13, wherein the plurality of capacitors comprises a first capacitor having a large capacitance and a second capacitor having a small capacitance.

15. The lightning suppression type arrester according to claim 14, wherein an installation location of the capacitor is higher than a surrounding ground.

16. The lightning suppression type arrester according to claim 1, wherein a plurality of capacitors is provided.

17. The lightning suppression type arrester according to claim 16, wherein the plurality of capacitors comprises a first capacitor having a large capacitance and a second capacitor having a small capacitance.

18. The lightning suppression type arrester according to claim 17, wherein an installation location of the capacitor is higher than a surrounding ground.

19. The lightning suppression type arrester according to claim 16, wherein an installation location of the capacitor is higher than a surrounding ground.

20. The lightning suppression type arrester according to claim 1, wherein an installation location of the capacitor is higher than a surrounding ground.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a front view schematically illustrating a first embodiment of the invention;

(2) FIG. 2 is a front view schematically illustrating a second embodiment of the invention;

(3) FIG. 3 is a front view schematically illustrating a third embodiment of the invention; and

(4) FIG. 4 is a front view schematically illustrating a fourth embodiment of the invention.

MODE(S) FOR CARRYING OUT THE INVENTION

(5) Hereinafter, a first embodiment of the invention will be described with reference to FIG. 1.

(6) In FIG. 1, reference numeral 1 denotes a lightning suppression type arrester (hereinafter abbreviated as arrester) according to the present embodiment.

(7) An arrester 1 of the present embodiment includes a charged body B made of a conductive material provided in an electrically insulated state on a top of a structure A, and a capacitor 2 electrically connected to the charged body B, the capacitor 2 includes a first electrode body 2a installed on a ground E and electrically connected to the ground E and a second electrode body 2b opposed to the first electrode body 2a via an electrical insulating layer Z to store an electric charge by a capacitance between the first electrode body 2a and the second electrode body 2b, and the second electrode body 2b is electrically connected to the charged body B by a cable C.

(8) In the present embodiment, the structure A corresponds to a pagoda or a Buddhist temple, and a jewel 3 provided on a top of the pagoda or the Buddhist temple corresponds to the charged body B.

(9) The first electrode body 2a included in the capacitor 2 is formed in a flat plate shape using a conductive material, and is laid on the ground E.

(10) The second electrode body 2b included in the capacitor 2 is formed in a flat plate shape using a conductive material, and is opposed to the first electrode body 2a in parallel at a predetermined interval.

(11) In addition, the first electrode body 2a and the second electrode body 2b are connected in a state of being electrically insulated by an insulator 4, and the electrical insulating layer Z is formed by a space formed between these opposing surfaces.

(12) Further, one end of the cable C is electrically connected to a lower end of the jewel 3 as the charged body B and routed near the ground via the inside of the structure A, and the other end thereof is electrically connected to the second electrode body 2b.

(13) Further, the first electrode body 2a is electrically connected to a ground rod 5 driven into the ground E in order to improve the electric connection with the ground E.

(14) Next, a description will be given of a lightning suppression action of the arrester 1 of the present embodiment configured as described above.

(15) As illustrated in FIG. 1, when a thundercloud D in which a negative charge is distributed on a cloud base approaches, an opposite charge (positive charge) is distributed on a surface of the ground E, and a positive charge is collected on the first electrode body 2a grounded to the ground E.

(16) Meanwhile, the second electrode body 2b opposed to the first electrode body 2a via the electrical insulating layer Z is negatively charged by an action of the capacitor.

(17) Further, the jewel 3 electrically connected to the second electrode body 2b via the cable C is negatively charged as a whole.

(18) Therefore, the jewel 3 forms a protection region by a negative charge on the top of the structure A, generation of an upward streamer in and around the structure A rarely occurs due to the negative charge of the protection region, and occurrence of lightning is suppressed.

(19) Here, the quantity of negative charges stored in the jewel 3 depends on the capacity of the capacitor 2.

(20) To sufficiently negatively charge the charged body B so that the charged body B is charged with necessary negative charges to cause the lightning suppression, the capacity of the capacitor 2 connected to the jewel 3 is increased.

(21) Meanwhile, since the capacitor 2, which is a main component of the arrester 1 and is a heavy object, is installed on the ground E, an operation of installing the heavy object is concentrated on the ground.

(22) As a result, the installation operation of the arrester 1 is simplified, and it is easy to cope with the increase in the size of the arrester 1 for improving the lightning suppression action.

(23) In addition, since the charged body B forming the negative charge region for lightning suppression on the top of the structure A is lighter in weight than the capacitor 2 which is a main component, it is possible to reduce high-place work associated with installation of the arrester 1.

(24) Meanwhile, as shown in the present embodiment, when the structure A is applied to the pagoda or the Buddhist temple, the jewel 3 provided on the top thereof can be used as the charged body B.

(25) Therefore, the arrester 1 of the present embodiment can be installed using an existing construction, so that the installation operation can be further reduced and the installation cost can be reduced.

(26) FIG. 2 illustrates a second embodiment of the invention.

(27) In the present embodiment, the arrester 1 is applied to a castle tower corresponding to the existing structure A.

(28) Further, a shachihoko 6 installed on the top of the castle tower is used as the charged body B.

(29) In the present embodiment, the shachihoko 6 is negatively charged so that lighting on or around the castle tower can be suppressed by a similar action to that of the first embodiment described above.

(30) In addition, it is possible to similarly ensure the effect of simplifying the installation operation of the arrester 1 of the present embodiment.

(31) FIG. 3 illustrates a third embodiment of the invention.

(32) In the present embodiment, the arrester 1 is applied to an existing windmill included in a wind power generator.

(33) Further, a receptacle 8 provided at a tip of each blade of the windmill is used as the charged body B.

(34) By rotation of the windmill, the tip of each blade 7 is moved to an upper part of the windmill to approach the thundercloud D described above.

(35) Here, since a protection region by negative charges is formed at the tip of each blade 7 by the receptacle 8, lightning on each blade 7 can be suppressed.

(36) In addition, in the present embodiment, the effects obtained in the first embodiment and second embodiment described above can be obtained in the same manner.

(37) FIG. 4 illustrates a fourth embodiment of the invention.

(38) In the present embodiment, a configuration is adopted in which a capacitor 9 having a smaller capacitance than that of the capacitor 2 is provided in addition to the capacitor 2 illustrated in each of the above-described embodiments.

(39) The capacitor 9 includes a first electrode body 9a grounded to the ground E, and a second electrode body 9b opposed to the first electrode body 9a via the electrical insulating layer Z.

(40) Further, the second electrode body 2b of the capacitor 2 and the second electrode body 9b of the capacitor 9 are electrically connected to each other.

(41) By adopting such a configuration, when a lightning strike having more energy than expected occurs and lightning strikes the charged body B, the capacitor 9 having a small capacitance is short-circuited, so that energy of the lightning can be sent to the ground to prevent the structure A from being damaged.

(42) Note that various shapes, dimensions, etc. of the respective components shown in the above embodiments are merely examples, and can be variously changed based on design requirements, etc.

(43) For example, the configuration of the charged body B can be arbitrarily changed, and the charged body B can be formed by electrically insulating a Franklin rod installed as a lightning rod in a structure from the structure.

(44) In addition, the configurations of the capacitors 2 and 9 can be changed as appropriate.

(45) That is, capacitors having different capacities can be used alone or in combination, and the number of capacitors used can be appropriately selected.

(46) In addition, even though a flat ground is exemplified as a grounding place of the capacitor 2, the invention is not limited thereto. For example, an installation location of the capacitor 2 may be grounded on a place higher than the surrounding ground or on a ground that is actively raised.

(47) As described above, by raising a ground having a grounding place of the capacitor 2, the capacitor 2 can be protected from an influence of water, water damage, etc.

(48) Note that as a method of raising the ground, it is possible to use an existing construction method using a concrete wall surrounding the periphery, a stone wall, a retaining wall, etc. in addition to an embankment.

(49) In addition, it is possible to provide a wall for preventing flooding around the capacitor.

EXPLANATIONS OF LETTERS OR NUMERALS

(50) 1 (LIGHTNING SUPPRESSION TYPE) ARRESTER 2 CAPACITOR 2a FIRST ELECTRODE BODY 2b SECOND ELECTRODE BODY 3 JEWEL 4 INSULATOR 5 (GROUND) ROD 6 SHACHIHOKO 7 BLADE 8 RECEPTACLE 9 CAPACITOR A STRUCTURE B CHARGED BODY C CABLE D THUNDERCLOUD E GROUND Z ELECTRICAL INSULATING LAYER