CN203910378U - Composite external sleeve type metal oxide lightning arrester - Google Patents
Composite external sleeve type metal oxide lightning arrester Download PDFInfo
- Publication number
- CN203910378U CN203910378U CN201420340502.4U CN201420340502U CN203910378U CN 203910378 U CN203910378 U CN 203910378U CN 201420340502 U CN201420340502 U CN 201420340502U CN 203910378 U CN203910378 U CN 203910378U
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- convex edge
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- insulating cylinder
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Abstract
The utility model discloses a composite external sleeve type metal oxide lightning arrester. The metal oxide lightning arrester is characterized in that an isolation core assembly and a three-section type insulating cylinder are arranged, so that the lightning arrester can be sealed and assembled stably and firmly; a blocking section is arranged to serve as a plug; a sealing section is provided with a seal flange to match with a seal groove, so that the seal groove and the seal flange can be connected with each other closely and firmly; a curve flange is formed between a first annular flange and a second annular flange, and the outer diameter of the curve flange is larger than those of the first and second flanges, so that a protruded part is formed between the first flange and the second flange; the seal flange can be arranged in a step shape and can be embedded in the seal groove closely, and the connection structure of the seal flange and the seal groove can be firm and stable.
Description
Technical field
The utility model relates to a kind of lightning arrester, especially relates to a kind of composite greatcoat type metal-oxide lighting arrester.
Background technology
Lightning arrester is for the protection of electric equipment, to avoid high transient overvoltage endanger and limit a kind of electrical equipment that time of afterflow also often limits afterflow assignment.Composite greatcoat type metal-oxide lighting arrester is that the power transmission and transforming equipment of protection electric power system is avoided the most effective protective devices of damage such as atmospheric over-voltage or switching overvoltage.
Current composite greatcoat type metal-oxide lighting arrester comprises erection column, core component, top electrode, bottom electrode and composite sheath, core component is normally comprised of some nonlinear resistor valve sheets, normally top electrode and bottom electrode are interference fitted in to the two ends of core component or have simply been threaded assembling, the poor and inadequate firm stable of structure of this fitted seal.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of polymeric metal oxide surge arrester, this kind of secret firm and favorable sealing property of lightning arrester syndeton.
For achieving the above object, the utility model provides following technical scheme:
A kind of composite greatcoat type metal-oxide lighting arrester, comprise erection column, core component, top electrode, bottom electrode and composite sheath, also include insulating cylinder, described top electrode and bottom electrode symmetry are sealedly attached to the axial both ends open of insulating cylinder, described insulating cylinder comprises the upper seal section being wholely set successively, set section and lower seal section, described core component is located in set section, described composite sheath parcel is arranged at outside insulating cylinder, described top electrode comprises occluded segment and the seal section being wholely set, described seal section is located in seal section and its outer surface convexes with sealing convex edge, described sealing convex edge comprises the first convex edge that is adjacent to successively setting, curved surface convex edge and the second convex edge, all setting and external diameter are suitable ringwise for described the first convex edge and the second convex edge, the outer wall of described curved surface convex edge is the external diameter that convex surface setting and its external diameter are greater than the first convex edge, described upper seal section is provided with the sealed groove suitable with sealing convex edge shape size, described sealing convex edge is embedded at sealed groove, the hermetically-sealed construction of described lower seal section and bottom electrode is consistent with the hermetically-sealed construction of upper seal section and top electrode.
By adopting technique scheme, insulating cylinder is set and further isolates core component, insulating cylinder is arranged to syllogic, make like this sealing of lightning arrester and install more firmly stable, the effect that occluded segment plays bottle stopper is set, seal section arranges sealing convex edge fitted seal groove, make the connection of close and firm more between sealed groove and sealing convex edge, curved surface convex edge is arranged between the first convex edge and the second convex edge that is annular, and the external diameter of curved surface convex edge is greater than the external diameter of the first convex edge and the second convex edge, make to have formed more outstanding position between the first convex edge and the second convex edge, thereby make to seal the stepped setting in convex edge, sealing convex edge can be inlaid in sealed groove more closely, syndeton is between the two firm stable more.
Further improvement as technique scheme: described occluded segment and seal section junction are towards occluded segment away from the setting that is inclined upwardly of one end of seal section, and this angle of inclination is 0 ° to 30 °.
By adopting technique scheme, being arranged so that like this has angle of inclination between occluded segment and seal section junction, the impact that company's environment of accepting between upper and lower electrode and insulating cylinder expands with heat and contract with cold and while changing, upper and lower electrode can because insulating cylinder to the extruding of occluded segment or loosening and move in opposite directions or motion dorsad.
The utility model is further set to: described erection column is arranged in top electrode and bottom electrode one end dorsad, and described composite sheath is arranged at outside insulating cylinder and is exposed erection column and be located at the other end in end cap by sulfidization molding parcel of silicon rubber.
By adopting technique scheme, silicon rubber has good electrical insulating property and oxytolerant ageing resistance, intensity is higher out of doors or during outdoor use, life-span is longer, after assembling insulating cylinder, refill and join erection column, then retell sulfidization molding of composite sheath and be wrapped on insulating cylinder and erection column, effectively guaranteed the positive confinement of lightning arrester.
The utility model is further set to: described insulating cylinder is rolled and formed by glass fabric.
By adopting technique scheme, glass fabric insulation property are good, convenient when fit on, bottom electrode.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model composite greatcoat type metal-oxide lighting arrester embodiment;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Reference numeral:
1, core component; 2, insulating cylinder; 21, upper seal section; 22, set section; 23, lower seal section; 24, sealed groove; 3, composite sheath; 4, bottom electrode; 5, top electrode; 51, occluded segment; 52, sealing convex edge; 521, the first convex edge; 522, curved surface convex edge; 523, the second convex edge; 6, erection column.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model composite greatcoat type metal-oxide lighting arrester embodiment is described further.
A kind of composite sheath 3 formula metal oxide arresters, comprise erection column 6, core component 1, top electrode 5, bottom electrode 4 and composite sheath 3, also include insulating cylinder 2, described top electrode 5 and bottom electrode 4 symmetries are sealedly attached to the axial both ends open of insulating cylinder 2, described insulating cylinder 2 comprises the upper seal section 21 being wholely set successively, set section 22 and lower seal section 23, described core component 1 is located in set section 22, described composite sheath 3 parcels are arranged at outside insulating cylinder 2, described top electrode 5 comprises occluded segment 51 and the seal section being wholely set, described seal section is located in seal section 21 and its outer surface convexes with sealing convex edge 52(and it should be noted that herein, sealing convex edge 52 should be elastomeric element, its elastic module foot is large to top electrode 5 can be fit in seal section 21), described sealing convex edge 52 comprises the first convex edge 521 that is adjacent to successively setting, curved surface convex edge 522 and the second convex edge 523, all setting and external diameter are suitable ringwise for described the first convex edge 521 and the second convex edge 523, the outer wall of described curved surface convex edge 522 is the external diameter that convex surface setting and its external diameter are greater than the first convex edge 521, described upper seal section 21 is provided with the sealed groove 24 suitable with sealing convex edge 52 shape sizes, described sealing convex edge 52 is embedded at sealed groove 24, the hermetically-sealed construction of described lower seal section 23 and bottom electrode 4 is consistent with the hermetically-sealed construction of upper seal section 21 and top electrode 5.
By adopting technique scheme, further isolation core component 1 of insulating cylinder 2 is set, insulating cylinder 2 is arranged to syllogic, make like this sealing of lightning arrester and install more firmly stable, the effect that occluded segment 51 plays bottle stopper is set, seal section arranges sealing convex edge 52 fitted seal grooves 24, make the connection of close and firm more between sealed groove 24 and sealing convex edge 52, curved surface convex edge 522 is arranged between the first convex edge 521 and the second convex edge 523 that is annular, and the external diameter of curved surface convex edge 522 is greater than the external diameter of the first convex edge 521 and the second convex edge 523, make to have formed more outstanding position between the first convex edge 521 and the second convex edge 523, thereby make to seal the stepped setting in convex edge 52, sealing convex edge 52 can be inlaid in sealed groove 24 more closely, syndeton is between the two firm stable more.
Described occluded segment 51 and seal section junction towards occluded segment 51 away from the setting that is inclined upwardly of one end of seal section, and this angle of inclination is 0 ° and (by daily processing, draws to 30 °, angle of inclination can be 10 °, 15 ° or 20 °, preferably 15 ° herein), being arranged so that like this has angle of inclination between occluded segment 51 and seal section junction, the impact that company's environment of accepting between upper and lower electrode 4 and insulating cylinder 2 expands with heat and contract with cold and while changing, upper and lower electrode 4 can be because the extruding of 2 pairs of occluded segment 51 of insulating cylinder or loosening and move in opposite directions or motion dorsad.
Described erection column 6 is arranged in top electrode 5 and bottom electrode 4 one end dorsad, and described composite sheath 3 is arranged at outside insulating cylinder 2 and is exposed erection column 6 and be located at the other end in end cap by sulfidization molding parcel of silicon rubber.By adopting technique scheme, silicon rubber has good electrical insulating property and oxytolerant ageing resistance, intensity is higher out of doors or during outdoor use, life-span is longer, after assembling insulating cylinder 2, refill and join erection column 6, then retell 3 sulfidization moldings of composite sheath and be wrapped on insulating cylinder 2 and erection column 6, effectively guaranteed the positive confinement of lightning arrester.
Described insulating cylinder 2 is rolled and is formed by glass fabric.By adopting technique scheme, glass fabric insulation property are good, convenient when fit on, bottom electrode 4.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a composite greatcoat type metal-oxide lighting arrester, comprise erection column, core component, top electrode, bottom electrode and composite sheath, it is characterized in that: also include insulating cylinder, described top electrode and bottom electrode symmetry are sealedly attached to the axial both ends open of insulating cylinder, described insulating cylinder comprises the upper seal section being wholely set successively, set section and lower seal section, described core component is located in set section, described composite sheath parcel is arranged at outside insulating cylinder, described top electrode comprises occluded segment and the seal section being wholely set, described seal section is located in seal section and its outer surface convexes with sealing convex edge, described sealing convex edge comprises the first convex edge that is adjacent to successively setting, curved surface convex edge and the second convex edge, all setting and external diameter are suitable ringwise for described the first convex edge and the second convex edge, the outer wall of described curved surface convex edge is the external diameter that convex surface setting and its external diameter are greater than the first convex edge, described upper seal section is provided with the sealed groove suitable with sealing convex edge shape size, described sealing convex edge is embedded at sealed groove, the hermetically-sealed construction of described lower seal section and bottom electrode is consistent with the hermetically-sealed construction of upper seal section and top electrode.
2. composite greatcoat type metal-oxide lighting arrester according to claim 1, is characterized in that: described occluded segment and seal section junction are towards occluded segment away from the setting that is inclined upwardly of one end of seal section, and this angle of inclination is 0 ° to 30 °.
3. composite greatcoat type metal-oxide lighting arrester according to claim 2, it is characterized in that: described erection column is arranged in top electrode and bottom electrode one end dorsad, described composite sheath is arranged at outside insulating cylinder and is exposed erection column and be located at the other end in end cap by sulfidization molding parcel of silicon rubber.
4. according to the composite greatcoat type metal-oxide lighting arrester described in claim 1 or 2 or 3, it is characterized in that: described insulating cylinder is rolled and formed by glass fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340502.4U CN203910378U (en) | 2014-06-24 | 2014-06-24 | Composite external sleeve type metal oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340502.4U CN203910378U (en) | 2014-06-24 | 2014-06-24 | Composite external sleeve type metal oxide lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910378U true CN203910378U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340502.4U Expired - Fee Related CN203910378U (en) | 2014-06-24 | 2014-06-24 | Composite external sleeve type metal oxide lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910378U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749332A (en) * | 2017-09-27 | 2018-03-02 | 陕西世翔电子科技有限公司 | A kind of high sealed arrester structure and construction design method |
| CN108364733A (en) * | 2018-04-28 | 2018-08-03 | 深圳供电局有限公司 | Sealing structure of lightning arrester for transformer substation and lightning arrester |
| CN113130148A (en) * | 2021-04-02 | 2021-07-16 | 句容市凯特电力电器有限公司 | Rigid suspension stain-resistant umbrella skirt-shaped porcelain insulator |
| CN113922320A (en) * | 2021-10-29 | 2022-01-11 | 润世达工程有限公司 | Overvoltage protection combined lightning arrester of power system |
-
2014
- 2014-06-24 CN CN201420340502.4U patent/CN203910378U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749332A (en) * | 2017-09-27 | 2018-03-02 | 陕西世翔电子科技有限公司 | A kind of high sealed arrester structure and construction design method |
| CN108364733A (en) * | 2018-04-28 | 2018-08-03 | 深圳供电局有限公司 | Sealing structure of lightning arrester for transformer substation and lightning arrester |
| CN108364733B (en) * | 2018-04-28 | 2024-06-25 | 深圳供电局有限公司 | Sealing structure of lightning arrester for transformer substation and lightning arrester |
| CN113130148A (en) * | 2021-04-02 | 2021-07-16 | 句容市凯特电力电器有限公司 | Rigid suspension stain-resistant umbrella skirt-shaped porcelain insulator |
| CN113922320A (en) * | 2021-10-29 | 2022-01-11 | 润世达工程有限公司 | Overvoltage protection combined lightning arrester of power system |
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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 |
Granted publication date: 20141029 Termination date: 20170624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |