CN205069253U - Lightning arrester - Google Patents
Lightning arrester Download PDFInfo
- Publication number
- CN205069253U CN205069253U CN201520889058.6U CN201520889058U CN205069253U CN 205069253 U CN205069253 U CN 205069253U CN 201520889058 U CN201520889058 U CN 201520889058U CN 205069253 U CN205069253 U CN 205069253U
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- CN
- China
- Prior art keywords
- lightning arrester
- cannelure
- ring channel
- crimping
- electrode
- Prior art date
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Abstract
Lightning arrester. Mainly solving present lightning arrester and can only leaning on the chemical property of coupling agent to adhere in insulating cover and electrode crimping, cause the wet problem of insulating properties and mechanical properties decline of lightning arrester chronic can oxidation sealing performance the degeneration. The utility model provides a lightning arrester, its electrode circumference is equipped with the crimping groove that is used for the insulating cover of a plurality of crimping, the crimping groove is including first ring channel and the second ring channel of intercommunication, first ring channel locate the second ring channel outside just its length be less than the length of second ring channel. Surface area that first ring channel and second ring channel through the looks adaptation have not only increased the crimping but also because the crimping of the less messenger of first ring channel opening is more firm, simple structure, long service life has protected lightning arrester.
Description
Technical field
The utility model relates to electrical device field, particularly a kind of lightning arrester.
Background technology
Lightning arrester is that one discharges switching overvoltage energy in thunder and lightning or electric power system; protective device equipment endangers from instantaneous overvoltage; afterflow can be blocked again; the unlikely device causing system earth short circuit; if but when the voltage that is struck by lightning is larger, current lightning arrester still may occur being electrically shocked the problem of burning, burning.Present lightning arrester to crimp with electrode at insulating case and the chemical property of coupling agent can only be leaned on to bond, and the time is long can cause make moist insulation property and mechanical performance of lightning arrester to decline by oxide seal performance degradation.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides lightning arrester, mainly solve present lightning arrester to crimp with electrode at insulating case the chemical property of coupling agent can only be leaned on to bond, the time long can oxide seal performance degradation cause lightning arrester to make moist problem that insulation property and mechanical performance decline.
The technical scheme that the utility model adopts is:
Lightning arrester, comprise electrode and the insulating case being coated on described electrode radial outer wall, described electrode is circumferentially with the crimp groove for the described insulating case of some crimping, described crimp groove comprises the first cannelure and second cannelure of connection, and described second ring slot outside is located at by described first cannelure and its length is less than the length of described second cannelure.
The axial cross section of described first cannelure is rectangle.
The axial cross section of the second cannelure is rectangle.
In described first cannelure and the second cannelure radial direction, axial plane is same plane.
Described insulating case is made up of flexible-epoxy.
The beneficial effects of the utility model are: the utility model provides lightning arrester, its electrode is circumferentially with the crimp groove for some crimping insulating cases, crimp groove comprises the first cannelure and second cannelure of connection, and the second ring slot outside is located at by the first cannelure and its length is less than the length of the second cannelure.Not only add the surface area of crimping by the first suitable cannelure and the second cannelure but also make because the first annular channel opening is less crimping more firm, structure is simple, and long service life, protects lightning arrester.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the utility model embodiment.
Fig. 2 is the partial sectional view of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in the figure, lightning arrester, comprise electrode 1 and the insulating case being coated on described electrode 1 radial outer wall, described electrode 1 is circumferentially with the crimp groove 2 for the described insulating case of some crimping, described crimp groove 2 comprises the first cannelure 21 and the second cannelure 22 of connection, and described first cannelure 21 is located at outside described second cannelure 22 and its length is less than the length of described second cannelure 22.The utility model provides lightning arrester, and its electrode is circumferentially with the crimp groove for some crimping insulating cases, and crimp groove comprises the first cannelure and second cannelure of connection, and the second ring slot outside is located at by the first cannelure and its length is less than the length of the second cannelure.Not only add the surface area of crimping by the first suitable cannelure and the second cannelure but also make because the first annular channel opening is less crimping more firm, structure is simple, and long service life, protects lightning arrester.
In the utility model, as shown in the figure, the axial cross section of described first cannelure 21 is rectangle.Also can make other shapes such as triangle herein, the structures such as ellipse, rectangle is convenient to processing, and cost is lower.
In the utility model, as shown in the figure, the axial cross section of the second cannelure 22 is rectangle.Also can make other shapes such as triangle herein, the structures such as ellipse, rectangle is convenient to processing, and cost is lower.
In the utility model, as shown in the figure, in described first cannelure 21 and the second cannelure 22 radial direction, axial plane is same plane.Be convenient to processing, be convenient to produce, cost is lower.
In the utility model, as shown in the figure, described insulating case is made up of flexible-epoxy.Have employed epoxy resin, under same size and electric pressure, rigidity, the intensity of product are greatly improved, and are more than ten times of silicon rubber insulator intensity, and epoxy resin has fabulous electrical strength simultaneously.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection range of the present utility model.
Claims (5)
1. lightning arrester, comprise electrode (1) and be coated on the insulating case of described electrode (1) radial outer wall, it is characterized in that: described electrode (1) is circumferentially with the crimp groove (2) for the described insulating case of some crimping, described crimp groove (2) comprises the first cannelure (21) and second cannelure (22) of connection, and described first cannelure (21) is located at described second cannelure (22) outside and its length is less than the length of described second cannelure (22).
2. lightning arrester according to claim 1, is characterized in that: the axial cross section of described first cannelure (21) is rectangle.
3. lightning arrester according to claim 1, is characterized in that: the axial cross section of described second cannelure (22) is rectangle.
4. lightning arrester according to claim 1, is characterized in that: in described first cannelure (21) and the second cannelure (22) radial direction, axial plane is same plane.
5. lightning arrester according to claim 1, is characterized in that: described insulating case is made up of flexible-epoxy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889058.6U CN205069253U (en) | 2015-11-10 | 2015-11-10 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889058.6U CN205069253U (en) | 2015-11-10 | 2015-11-10 | Lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069253U true CN205069253U (en) | 2016-03-02 |
Family
ID=55395774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520889058.6U Expired - Fee Related CN205069253U (en) | 2015-11-10 | 2015-11-10 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346254A (en) * | 2018-10-23 | 2019-02-15 | 襄阳市三三电气有限公司 | Pressure discharges the distribution type arrester that no-spark generates |
-
2015
- 2015-11-10 CN CN201520889058.6U patent/CN205069253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346254A (en) * | 2018-10-23 | 2019-02-15 | 襄阳市三三电气有限公司 | Pressure discharges the distribution type arrester that no-spark generates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20191110 |