CN101950646A - Touchable plug-pull arrester - Google Patents
Touchable plug-pull arrester Download PDFInfo
- Publication number
- CN101950646A CN101950646A CN 201010277576 CN201010277576A CN101950646A CN 101950646 A CN101950646 A CN 101950646A CN 201010277576 CN201010277576 CN 201010277576 CN 201010277576 A CN201010277576 A CN 201010277576A CN 101950646 A CN101950646 A CN 101950646A
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- annular
- ring
- shaped
- plug
- conductor
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Abstract
The invention discloses a touchable plug-pull arrester, comprising a cylindrical varistor core. The arrester is characterized in that the cylindrical varistor core is covered by a ring-shaped internal insulating medium, a ring-shaped semi-conductor or conductor and a ring-shaped external insulating medium in sequence; a plug-pull joint is in fit connection with the upper end of the cylindrical varistor core; the lower end of the ring-shaped external insulating medium is fixedly connected with a ring-shaped base provided with a step hole; the lower end of the step hole is provided with a ring-shaped sheet provided with a hole; an earthing terminal passes through the hole and the step hole and is fixedly connected with the bottom end of the cylindrical varistor core; and the ring-shaped external insulating medium and the ring-shaped base are covered by a ring-shaped metal jacket. When being used, the arrest has safe shell and high potential, is touchable, convenient to install and overhaul and free from electromagnetic interference, simultaneously has high reliability, long service life and low cost and absolutely meets the special use requirements of such compact electrical equipment as gas-insulated switchgear.
Description
Technical field
The present invention relates to overvoltage protection and use the lightning arrester field, be specifically related to a kind of tangible plug-in lightning arrester that is exclusively used in the high-voltage electrical equipment of protection gas-filled type insulation.
Background technology
The lightning arrester that generally is used for insulation protection mainly is to adopt traditional ceramic coat or composite silicone rubber overcoat; product one end ground connection when installing and using; another termination high-pressure side; its shortcoming is that surface field intensity is very high in use; easily jeopardize personal safety, installation and maintenance simultaneously is also inconvenient, and the external insulation structure that is adopted is too simple in addition; be prone to surface discharge phenomena in damp and hot, filthy environment, the accident that produces because of the external insulation infringement happens occasionally.The scope of application of product is subjected to certain restriction.Particularly in recent years, the inflating switch cabinet development is rapid, and traditional lightning arrester is difficult to satisfy it and installs and uses requirement.
Chinese patent ZL01265825.1 and ZL200620046285.3 disclose a kind of so tangible lightning arrester, this lightning arrester be connected to high-pressure side and low-pressure end, be provided with solid dielectric insulation between the shell that core body and conductor material are made, wherein be provided with earth terminal, the dielectric front end is a connection-peg, substantially realized tangibly function, but the external insulation safety of this structure lightning arrester only relies on one deck solid dielectric, still have the not high defective of reliability.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of tangible plug-in lightning arrester; the non-hazardous high potential of shell during a kind of the use, tangible, install and maintenance is convenient, non-electromagnetic field disturbs, reliability height, long service life, overvoltage protection lightning arrester that cost is low simultaneously, satisfy the special instructions for use of compact electric equipments such as inflating switch cabinet fully.
For addressing the above problem, technical scheme of the present invention is:
A kind of tangible plug-in lightning arrester, include cylindricality piezo-resistance core body, it is characterized in that: described cylindricality piezo-resistance core body is coated with dielectric in the annular outward successively, annular semiconductor or conductor, annular external insulation medium, described cylindricality piezo-resistance core body upper end is connected with the plug type joint, annular external insulation medium lower end is fixedly connected with annular base, has stepped hole in the described annular base, the stepped hole lower port is provided with annular flake, annular flake is provided with perforate, earth terminal passes perforate and stepped hole, and fixedlys connected with the bottom of described cylindricality piezo-resistance core body; Described annular external insulation medium and annular base are coated with the endless metal overcoat, and stepped hole constitutes a pressure relief channels.
The height of described annular semiconductor or conductor is less than the height of dielectric in the annular, and described annular semiconductor or conductor occupy the middle part in the dielectric outside in the described annular; The plug type joint adopts pure copper material.
Core body of the present invention is to be formed by stacking by Zinc-oxide piezoresistor, has excellent pressure-sensitive character (non-linear), and assurance device can carry out good fit with the insulation of protected device.
Described tangible plug-in lightning arrester, solid dielectric insulation between cylindricality Zinc-oxide piezoresistor core body and the endless metal overcoat adopts the good composite silicone rubber of insulation property as dielectric, its dielectric is divided into inside and outside two-layer, the requirement that all need satisfy system's rated voltage tolerance intensity of the dielectric of each layer; Semiconductor or conductor that annular is arranged in the outer setting of internal layer solid dielectric insulation, the height of this annular semiconductor or conductor should be less than the Zinc-oxide piezoresistor height in the cylindricality core body, should guarantee to be arranged at the middle part in the cylindricality Zinc-oxide piezoresistor core body outside simultaneously, make the cylindricality Zinc-oxide piezoresistor core body uniform purpose of electric field strength on every side to reach; The present invention is because of the effect of annular semiconductor or conductor, make electric field distributing very evenly in dielectric, reduced dielectric because of the uneven probability that damages of Electric Field Distribution, the inside and outside layer dielectric that is provided with among the present invention simultaneously all can satisfy the requirement of system's rated voltage tolerance intensity, even one deck dielectric in service is damaged, device still can safe operation, has high security reliability.
It is pressure relief device that the bottom of described tangible plug-in lightning arrester is provided with a relatively low passage of mechanical strength, blasts when preventing the lightning arrester fault and the safety of other electric equipments around influencing.
Beneficial effect of the present invention:
The present invention in use, shell does not have danger, high potential, tangible, install and maintenance is convenient, non-electromagnetic field disturbs, reliability height, long service life, cost are low simultaneously, satisfy the special instructions for use of compact electric equipments such as inflating switch cabinet fully.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, a kind of tangible plug-in lightning arrester, include cylindricality piezo-resistance core body 6, the cylindricality piezo-resistance core body 6 outer interior dielectrics 5 of annular that are coated with successively, annular semiconductor or conductor 4, annular external insulation medium 3, cylindricality piezo-resistance core body 6 upper ends are connected with fine copper plug type joint 1, annular external insulation medium 3 lower ends are fixedly connected with annular base 8, has a stepped hole in the annular base 8, form a pressure relief channels 7, the stepped hole lower port is provided with annular flake, annular flake is provided with perforate, and earth terminal 9 passes perforate and pressure relief channels 7, fixedlys connected with the bottom of cylindricality piezo-resistance core body 6; Annular external insulation medium 3 and annular base 8 are coated with endless metal overcoat 2.
The height of annular semiconductor or conductor 4 is less than the height of dielectric 5 in the annular, and annular semiconductor or conductor 4 occupy the middle part in dielectric 5 outsides in the annular.
Dielectric 5 is a solid dielectric insulation in annular external insulation medium 3 and the annular, adopts good composite silicone rubber, DMC, the SMC etc. of insulation property to make, and its dielectric intensity should be by system's rated voltage tolerance intensity setting.
Annular semiconductor or conductor 4 can adopt conductor or semiconductor sprayed on material, also can plate or apply metal material, its height is less than the height of dielectric 5 in the annular, and occupy the middle part in dielectric 5 outsides in the annular, to improve the issue of electric field, make that electric field strength is even around the cylindricality Zinc-oxide piezoresistor core body 6.
Annular external insulation medium 3 adopts elasticity better, and the compounded rubber of dielectric good strength is advisable simultaneously.
Claims (2)
1. tangible plug-in lightning arrester, include cylindricality piezo-resistance core body, it is characterized in that: described cylindricality piezo-resistance core body is coated with dielectric in the annular outward successively, annular semiconductor or conductor, annular external insulation medium, described cylindricality piezo-resistance core body upper end is connected with the plug type joint, annular external insulation medium lower end is fixedly connected with annular base, has stepped hole in the described annular base, the stepped hole lower port is provided with annular flake, annular flake is provided with perforate, earth terminal passes perforate and stepped hole, and fixedlys connected with the bottom of described cylindricality piezo-resistance core body; Described annular external insulation medium and annular base are coated with the endless metal overcoat, and stepped hole constitutes a pressure relief channels.
2. tangible plug-in lightning arrester according to claim 1, it is characterized in that: the height of described annular semiconductor or conductor is less than the height of dielectric in the annular, and described annular semiconductor or conductor occupy the middle part in the dielectric outside in the described annular; The plug type joint adopts pure copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277576 CN101950646A (en) | 2010-09-07 | 2010-09-07 | Touchable plug-pull arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277576 CN101950646A (en) | 2010-09-07 | 2010-09-07 | Touchable plug-pull arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101950646A true CN101950646A (en) | 2011-01-19 |
Family
ID=43454098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010277576 Pending CN101950646A (en) | 2010-09-07 | 2010-09-07 | Touchable plug-pull arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101950646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452455A (en) * | 2016-04-13 | 2017-12-08 | 西门子公司 | Arrester |
| CN113644638A (en) * | 2021-07-01 | 2021-11-12 | 深圳市海鹏信电子股份有限公司 | Lightning protection device and 1U equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509762Y (en) * | 2001-11-06 | 2002-09-04 | 西安神电电器有限公司 | Touch type overvoltage protector |
| US20060030211A1 (en) * | 2004-08-06 | 2006-02-09 | Richard Graf | High voltage connector arrangement |
| CN200969260Y (en) * | 2006-09-26 | 2007-10-31 | 上海电瓷厂 | Touchable metallic oxide lighting protector |
| CN101465187A (en) * | 2009-01-04 | 2009-06-24 | 窦建中 | Elbow-shaped inserting/pulling type metal-oxide lighting arrester |
| CN101707105A (en) * | 2009-11-16 | 2010-05-12 | 邱强 | Tangible plug type lightning arrester |
-
2010
- 2010-09-07 CN CN 201010277576 patent/CN101950646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509762Y (en) * | 2001-11-06 | 2002-09-04 | 西安神电电器有限公司 | Touch type overvoltage protector |
| US20060030211A1 (en) * | 2004-08-06 | 2006-02-09 | Richard Graf | High voltage connector arrangement |
| CN200969260Y (en) * | 2006-09-26 | 2007-10-31 | 上海电瓷厂 | Touchable metallic oxide lighting protector |
| CN101465187A (en) * | 2009-01-04 | 2009-06-24 | 窦建中 | Elbow-shaped inserting/pulling type metal-oxide lighting arrester |
| CN101707105A (en) * | 2009-11-16 | 2010-05-12 | 邱强 | Tangible plug type lightning arrester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452455A (en) * | 2016-04-13 | 2017-12-08 | 西门子公司 | Arrester |
| CN107452455B (en) * | 2016-04-13 | 2020-03-06 | 西门子公司 | Lightning arrester |
| CN113644638A (en) * | 2021-07-01 | 2021-11-12 | 深圳市海鹏信电子股份有限公司 | Lightning protection device and 1U equipment |
| CN113644638B (en) * | 2021-07-01 | 2023-07-28 | 深圳市海鹏信电子股份有限公司 | Lightning protection device and 1U equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110119 |