CN109817403B - Metal oxide lightning arrester with high heat dissipation performance - Google Patents
Metal oxide lightning arrester with high heat dissipation performance Download PDFInfo
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- CN109817403B CN109817403B CN201910195337.5A CN201910195337A CN109817403B CN 109817403 B CN109817403 B CN 109817403B CN 201910195337 A CN201910195337 A CN 201910195337A CN 109817403 B CN109817403 B CN 109817403B
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- shell
- heat
- end cover
- arrester
- metal oxide
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 27
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 17
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The invention discloses a metal oxide arrester with strong heat dissipation, which comprises a shell, wherein a hollow insulating cylinder is arranged in the shell, a heat dissipation cavity is arranged in the hollow insulating cylinder, a heat conduction plate is arranged in the heat dissipation cavity, an upper end cover is arranged at the top end of the shell, a rubber air bag is arranged in the upper end cover, a damp-proof cavity is arranged on one side of the rubber air bag, and a wind-proof cover is sleeved outside the shell. The problem of the insecure installation of the arrester improves the wind resistance of the arrester.
Description
Technical Field
The invention relates to the technical field of metal oxide arresters, in particular to a metal oxide arrester with strong heat dissipation.
Background
The metal oxide arrester is an important device frequently adopted when the communication cable is prevented from being damaged by thunder, sometimes called as an overvoltage protector and an overvoltage limiter, and is connected between the cable and the ground and generally connected in parallel with a protected device, the arrester can effectively protect the communication device, and once abnormal voltage occurs, the arrester will act to play a role in protection, when the communication cable or the device runs under normal working voltage, the arrester will not act and is regarded as an open circuit to the ground, once high voltage occurs and the insulation of the protected device is endangered, the arrester immediately acts to guide high voltage impact current to the ground, thereby limiting the voltage amplitude and protecting the insulation of the communication cable and the device, but the existing metal oxide arrester exists when in use, the heat dissipation performance inside the arrester is poor, and the heat generated inside the arrester can not be absorbed in time, the lightning arrester has poor stability and reliability in long-term operation, poor sealing performance and moisture resistance inside the upper end cover of the lightning arrester, and easy damp damage, so that for the situations, in order to avoid the technical problems, the metal oxide lightning arrester with strong heat dissipation performance is necessary to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide a metal oxide lightning arrester with strong heat dissipation performance, and aims to solve the problems that the metal oxide lightning arrester in the prior art has poor heat dissipation performance inside the lightning arrester, cannot absorb heat generated inside the lightning arrester in time, has poor running stability and reliability during long-term operation, has poor sealing performance and moisture resistance inside an upper end cover of the lightning arrester, and is easy to damp and damage.
In order to achieve the purpose, the invention provides the following technical scheme: a metal oxide arrester with strong heat dissipation performance comprises a shell, wherein an upper end cover is installed at the top end of the shell, a silica gel umbrella skirt is sleeved outside the shell, a fixing rod is installed at the top end of the upper end cover, a sealing ring is sleeved at the joint of the fixing rod and the upper end cover, a wiring terminal is installed at the bottom end of the shell, a hollow insulating cylinder is sleeved inside the shell, a conductive post is installed inside the hollow insulating cylinder, a heat dissipation cavity is formed outside the conductive post, heat conduction plates are installed on two sides of the heat dissipation cavity, the heat conduction plates are fixedly connected with the hollow insulating cylinder through clamping grooves, aluminum oxide sheets are sleeved on two sides of the heat conduction plates through threads, through holes are formed inside the heat conduction plates, a rubber air bag is installed at the top end inside the upper end cover, the rubber air bag is fixedly, a moisture-proof cavity is arranged between the partition board and the support board.
Preferably, the heat dissipation chamber is filled with dry insulating gas nitrogen.
Preferably, silica gel particles are placed inside the moisture-proof chamber.
Preferably, the top end of the silica gel umbrella skirt is sleeved with a wind shield, a limiting ring is arranged at the joint of the wind shield and the shell, and the wind shield is uniformly provided with guide grooves.
Preferably, one side of the supporting plate is provided with a compression spring through a spring fixing seat, and the surface of the supporting plate is coated with a rubber gasket.
Preferably, the shape of the aluminum oxide sheet is arc-shaped.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. be provided with the heat dissipation cavity, the heat-conducting plate, aluminum oxide sheet and through-hole, when the arrester is bearing transient overvoltage, it produces a large amount of heats to lead the inside heat that produces of electrical pillar, through the inside arc aluminum oxide sheet of hollow insulating cylinder and the direct contact who leads electrical pillar, the area of contact of heat conduction has been increased, the dry insulating gas nitrogen gas of cooperation simultaneously passes through the circulation of the inside through-hole of heat-conducting plate at the heat dissipation cavity, the efficiency of heat conduction has been improved, thereby the inside heat dispersion of arrester has been improved by a wide margin, the stability and the reliability of arrester operation when long-term operation have been.
2. Be provided with rubber air bag, a supporting plate, baffle and dampproofing cavity, support through the backup pad to rubber air bag, the clearance on rubber air bag and upper end cover top has been reduced, through the shutoff of rubber air bag to the upper end cover top, and the inside silica gel granule of the dampproofing cavity of cooperation baffle department can absorb the drying to the inside moisture that gets into the upper end cover, thereby improved inside sealing performance and the humidity resistance of arrester upper end cover, avoid the arrester to wet the damage, the actual life of arrester has been prolonged.
3. Be provided with windshield, spacing ring and guiding gutter, fix the windshield through the spacing ring to dredges the dispersion by the inside guiding gutter of windshield to the wind current, thereby solved the arrester mounted position and crossed high, wind-force is great, and the arrester takes place to rock easily, installs insecure problem, has improved the anti-wind performance of arrester.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the hollow insulating cylinder of the present invention;
FIG. 3 is a schematic structural view of the upper end cap of the present invention;
FIG. 4 is a schematic view of the installation structure of the silica gel umbrella skirt of the present invention;
reference numbers in the figures: 1. a housing; 2. an upper end cover; 3. a silica gel umbrella skirt; 4. a seal ring; 5. fixing the rod; 6. a wiring terminal; 7. a conductive post; 8. a hollow insulating cylinder; 9. a heat dissipation chamber; 10. a heat conducting plate; 11. a card slot; 12. aluminum oxide flakes; 13. a through hole; 14. a rubber air bag; 15. a support plate; 16. a partition plate; 17. a moisture-proof chamber; 18. a windshield; 19. a limiting ring; 20. and a diversion trench.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-4, the invention provides a technical scheme, a metal oxide lightning arrester with strong heat dissipation property, comprising a housing 1, an upper end cover 2 is installed on the top end of the housing 1, a silica gel umbrella skirt 3 is sleeved outside the housing 1, a fixing rod 5 is installed on the top end of the upper end cover 2, a sealing ring 4 is sleeved at the joint of the fixing rod 5 and the upper end cover 2, a wiring terminal 6 is installed on the bottom end of the housing 1, a hollow insulating cylinder 8 is sleeved inside the housing 1, a conductive post 7 is installed inside the hollow insulating cylinder 8, a heat dissipation chamber 9 is installed outside the conductive post 7, heat conduction inside the heat dissipation chamber 9 is accelerated through circulation of nitrogen inside the heat dissipation chamber 9, and insulation property inside the hollow insulating cylinder 8 is ensured, the use is safe, dry insulating gas nitrogen is filled inside the heat dissipation chamber 9, heat conduction plates 10 are installed on, the heat conducting plate 10 is fixedly connected with the hollow insulating cylinder 8 through a clamping groove 11, the two sides of the heat conducting plate 10 are sleeved with an alumina sheet 12 through threads, in order to increase the contact area between the alumina sheet 12 and the conductive column 7 and facilitate the alumina sheet 12 to absorb and conduct heat generated by the conductive column 7, the alumina sheet 12 is arc-shaped, a through hole 13 is formed in the heat conducting plate 10, a rubber air bag 14 is installed at the top end of the inner part of the upper end cover 2, the rubber air bag 14 is fixedly connected with the upper end cover 2 through a supporting plate 15, a partition plate 16 is installed at the bottom end of the supporting plate 15, the supporting plate 15 is supported through a compression spring, the tightness of the connection between the rubber air bag 14 and the upper end cover 2 is improved, gaps between the rubber air bag 14 and the upper end cover 2 are reduced, the sealing performance of the upper end cover, seted up dampproofing cavity 17 between baffle 16 and the backup pad 15, can absorb the drying to the inside moisture of getting into upper end cover 2 through the silica gel granule, avoided the moisture to enter into to hollow insulating cylinder 8 inside, cause the damage of weing of arrester, influence the normal use of device, the silica gel granule has been placed to dampproofing cavity 17 inside.
The top end of the silica gel umbrella skirt 3 is sleeved with a wind shield 18, a limiting ring 19 is arranged at the joint of the wind shield 18 and the shell 1, and guide grooves 20 are uniformly formed in the wind shield 18.
The working principle and the using process of the invention are as follows: in the process of using the metal oxide arrester with strong heat dissipation, firstly, when the arrester is under transient overvoltage, a large amount of heat can be generated inside the conductive post 7, the contact area of heat conduction of the conductive post 7 is increased through the direct contact of the arc-shaped aluminum oxide sheet 12 at the clamping groove 11 inside the hollow insulating cylinder 8 and the conductive post 7, and simultaneously, the circulation of dry insulating gas nitrogen in the heat dissipation chamber 9 through the through hole 13 inside the heat conduction plate 10 is matched, so that the insulating property inside the hollow insulating cylinder 8 is ensured, the heat conduction efficiency is improved, the heat dissipation performance inside the arrester shell 1 is improved, the stability and the reliability of the operation of the arrester in long-term work are ensured, then, the supporting plate 15 is supported through the compression spring, the rubber air bag 14 is extruded by the supporting plate 15, and the gap between the rubber air bag 14 and the top end of the upper end cover 2 is reduced, through the shutoff of rubber gasbag 14 to upper end cover 2 top to the silica gel granule inside the dampproofing cavity 17 of cooperation baffle 16 department can absorb the drying to the inside moisture that gets into upper end cover 2, thereby has improved inside sealing performance and the humidity resistance of arrester upper end cover 2, avoids the arrester to wet the damage, has prolonged the actual life of arrester.
Finally, the wind shield 18 is fixed through the limiting ring 19, and wind current is dredged and dispersed through the flow guide groove 20 in the wind shield 18, so that the problems that the installation position of the lightning arrester is too high, wind power is large, the lightning arrester is prone to shaking and is not firm in installation are solved, and the wind resistance of the lightning arrester is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A metal oxide arrester with strong heat dissipation performance comprises a shell (1), and is characterized in that: the heat-conducting wire is characterized in that an upper end cover (2) is installed at the top end of a shell (1), a silica gel umbrella skirt (3) is sleeved outside the shell (1), a fixing rod (5) is installed at the top end of the upper end cover (2), a sealing ring (4) is sleeved at the joint of the fixing rod (5) and the upper end cover (2), a wiring terminal (6) is installed at the bottom end of the shell (1), a hollow insulating cylinder (8) is sleeved inside the shell (1), a conducting post (7) is installed inside the hollow insulating cylinder (8), a heat-radiating cavity (9) is formed outside the conducting post (7), heat-conducting plates (10) are installed on two sides of the heat-radiating cavity (9), the heat-conducting plates (10) are fixedly connected with the hollow insulating cylinder (8) through clamping grooves (11), aluminum oxide sheets (12) are sleeved on two sides of the heat-conducting plates, the top end of the interior of the upper end cover (2) is provided with a rubber air bag (14), the rubber air bag (14) is fixedly connected with the upper end cover (2) through a supporting plate (15), the bottom end of the supporting plate (15) is provided with a partition plate (16), and a damp-proof cavity (17) is formed between the partition plate (16) and the supporting plate (15); the heat dissipation chamber (9) is filled with dry insulating gas nitrogen; silica gel particles are placed inside the moisture-proof cavity (17).
2. The metal oxide arrester of claim 1, wherein: the silica gel umbrella skirt (3) top has cup jointed windshield (18), spacing ring (19) are installed to windshield (18) and shell (1) junction, guiding gutter (20) have evenly been seted up to windshield (18) inside.
3. The metal oxide arrester of claim 1, wherein: and a compression spring is installed on one side of the support plate (15) through a spring fixing seat, and a rubber gasket is attached to the surface of the support plate (15).
4. The metal oxide arrester of claim 1, wherein: the shape of the aluminum oxide sheet (12) is arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910195337.5A CN109817403B (en) | 2019-03-14 | 2019-03-14 | Metal oxide lightning arrester with high heat dissipation performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910195337.5A CN109817403B (en) | 2019-03-14 | 2019-03-14 | Metal oxide lightning arrester with high heat dissipation performance |
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| Publication Number | Publication Date |
|---|---|
| CN109817403A CN109817403A (en) | 2019-05-28 |
| CN109817403B true CN109817403B (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910195337.5A Active CN109817403B (en) | 2019-03-14 | 2019-03-14 | Metal oxide lightning arrester with high heat dissipation performance |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451888A (en) * | 2021-05-14 | 2021-09-28 | 陈浩彬 | Heat dissipation fire prevention type lightning protection device that disappears |
| CN113104223A (en) * | 2021-05-18 | 2021-07-13 | 袁鹏杰 | Unmanned aerial vehicle carries flow monitoring devices |
| CN118213142B (en) * | 2023-10-18 | 2024-10-11 | 国网上海市电力公司 | Separable pillar type lightning arrester capable of preventing water and gas from entering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664642A5 (en) * | 1984-04-13 | 1988-03-15 | Bbc Brown Boveri & Cie | SURGE ARRESTERS. |
| CN203982930U (en) * | 2014-07-11 | 2014-12-03 | 浙江天虹电气金具有限公司 | Damp-proof type lightning arrester |
| CN106158181A (en) * | 2016-08-29 | 2016-11-23 | 国网江苏省电力公司镇江供电公司 | Metal oxide arrester |
| CN207558504U (en) * | 2017-10-18 | 2018-06-29 | 中南仪表有限公司 | A kind of Dampproof formula composite jacket gaspless metal oxide arrester |
-
2019
- 2019-03-14 CN CN201910195337.5A patent/CN109817403B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664642A5 (en) * | 1984-04-13 | 1988-03-15 | Bbc Brown Boveri & Cie | SURGE ARRESTERS. |
| CN203982930U (en) * | 2014-07-11 | 2014-12-03 | 浙江天虹电气金具有限公司 | Damp-proof type lightning arrester |
| CN106158181A (en) * | 2016-08-29 | 2016-11-23 | 国网江苏省电力公司镇江供电公司 | Metal oxide arrester |
| CN207558504U (en) * | 2017-10-18 | 2018-06-29 | 中南仪表有限公司 | A kind of Dampproof formula composite jacket gaspless metal oxide arrester |
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| Publication number | Publication date |
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| CN109817403A (en) | 2019-05-28 |
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Effective date of registration: 20240609 Address after: 264000 1103, No. 29, Haigang Road, Zhifu District, Yantai City, Shandong Province Patentee after: Shandong CHENQiao Electric Technology Co.,Ltd. Country or region after: China Address before: 230601 3rd floor, area a, 393 feicui Road, Taohua Industrial Park, Jingkai District, Hefei City, Anhui Province Patentee before: HEFEI GEWEITE ELECTRIC TECHNOLOGY Co.,Ltd. Country or region before: China |