CN2330045Y - Metallic oxide lighting protector - Google Patents
Metallic oxide lighting protector Download PDFInfo
- Publication number
- CN2330045Y CN2330045Y CN 97242834 CN97242834U CN2330045Y CN 2330045 Y CN2330045 Y CN 2330045Y CN 97242834 CN97242834 CN 97242834 CN 97242834 U CN97242834 U CN 97242834U CN 2330045 Y CN2330045 Y CN 2330045Y
- Authority
- CN
- China
- Prior art keywords
- metal oxide
- valve block
- bottom electrode
- low
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a metal oxide arrester which comprises an arrester main body, a hot melting type release unit, an upper electrode, a valve plate (12), low melting point alloy (13), release parts and a lower electrode (4), wherein, the upper electrode, the valve plate (12), the low melting point alloy (13), the release parts and the lower electrode (4) are electrically connected with each other. The utility model is characterized in that the lower electrode (4) is arranged below the metal oxide valve plate (12), a coupling bolt (11) is connected to the inner part of the lower electrode (4) by inner screw threads, and the upper end of a wiring bolt (10) on the release parts is nearby connected to the lower end of the coupling bolt (11) through the low melting point alloy (13). The release unit of the utility model has the advantages of flexible action, timely action and reliable action.
Description
The utility model relates to a kind of lightning arrester.
In the prior art, metal oxide arrester, by comprise an external insulation sleeve, be fixed on the external insulation sleeve bottom a seal member, be sealed in some metal oxide valve blocks in external insulation sleeve and the seal member and be fixed on the metal oxide lightning arrester of the last termination on the external insulation sleeve and comprise that the automatic release unit of hot melten type that a spring breaks away from parts, low-melting alloy and following termination forms.When lightning arrester is undesired, for example valve block wears out, makes moist, then power current becomes big in the lightning arrester, cause the valve block heating, the heat of valve block is delivered to low-melting alloy by end cap, because most of end cap is exposed in the extraneous air, so it is bigger to be dispersed into airborne heat, then to pass to the heat of low-melting alloy few for valve block, makes low-melting alloy throw off weak effect, and it is long to lead the low-melting alloy thermal accumlation time.
The metal oxide arrester that release unit can separate with lightning arrester delicately when the purpose of this utility model was to provide a kind of lightning arrester fault.
The technical solution of the utility model is: it comprises lightning arrester body and hot melten type release unit, described lightning arrester body by organic combined insulated overcoat, be arranged at interior insulation supporting layer in the insulating coating, in the interior insulation supporting layer number of metal oxide valve block, be fixed in top electrode in the insulation supporting layer formed; Described release unit comprises bottom electrode, disengaging parts, the low-melting alloy that is fixed in interior insulation supporting layer, described release unit is arranged at the bottom of lightning arrester body, is electrically connected between described top electrode, valve block, bottom electrode, disengaging parts, the low-melting alloy; The below of described metal oxide valve block is provided with bottom electrode and is connected with the metal oxide valve block, and this bottom electrode internal thread is connected with connecting bolt, and the upper end that breaks away from the connection bolt on the parts is connected by low-melting alloy with the lower end of connecting bolt nearby.
The utility model compared with prior art has following advantage:
After lightning arrester is aging owing to the metal oxide valve block, electrorheological in the lightning arrester is big, cause the heating of metal oxide valve block, make lightning arrester can not keep heat balance, the temperature of valve block is conducted to low-melting alloy by bottom electrode, cause low-melting alloy to melt, energy-stored spring ejects terminals under the lightning arrester, makes whole lightning arrester current potential unsettled, does not influence system's operate as normal, give tangible mark of user simultaneously, can be changed when an opportunity arises afterwards.Because the heat major part that electrode produces valve block is delivered to low melting point alloy, do not contact substantially, so low-melting alloy is thrown off sensitivity with air.Because the electrode internal thread is connected with connecting bolt, so low-melting alloy can separate the high temperature melting low-melting alloy when preventing moulding rubber sleeve (also can be organic combined insulated overcoat) to the operation of connecting bolt and connection bolt connection with the assembling of whole lightning arrester.
The utility model will be further described below in conjunction with drawings and Examples:
Accompanying drawing is a structural front view of the present utility model; Wherein:
[1]. interior insulation supporting layer; [2]. organic combined insulated overcoat; [3]. end cap; [4]. bottom electrode; [5]. protective cover; [6]. nut; [7]. packing ring; [8]. serrated lock washer; [9] energy-stored spring; [10]. connection bolt; [11]. connecting bolt; [12]. the metal oxide valve block; [13]. low-melting alloy; [14]. through hole; [15]. the termination;
Embodiment: referring to accompanying drawing: the utility model comprises lightning arrester body and hot melten type release unit, described lightning arrester body by organic combined insulated overcoat [2], be arranged at interior insulation supporting layer [1] in the insulating coating, in the interior insulation supporting layer [1] number of metal oxide valve block [12], be fixed in top electrode in the insulation supporting layer [1] formed; Described release unit comprises bottom electrode [4], disengaging parts, the low-melting alloy [13] that is fixed in interior insulation supporting layer [1], described release unit is arranged at the bottom of lightning arrester body, is electrically connected between described top electrode, valve block [12], bottom electrode [4], disengaging parts, the low-melting alloy [13]; The below of described metal oxide valve block [12] is provided with bottom electrode [4] and is connected with metal oxide valve block [12], this bottom electrode [4] internal thread is connected with connecting bolt [11], and the upper end that breaks away from the connection bolt [10] on the parts is connected by low-melting alloy [13] with the lower end of connecting bolt [11] nearby.Here indication is that low-melting alloy [13] is as far as possible near electrode [4] nearby.Described connecting bolt [11] is threaded with bottom electrode [4], the bottom of described connecting bolt [11] is that diameter becomes big termination [15], the lower surface of bottom electrode [4] is close in the upper surface of this termination [15], have groove as the molten bath in the bottom surface of termination [15], the big upper surface of change of connection bolt [10] is inserted in the described groove.
Claims (2)
1. metal oxide arrester, comprise lightning arrester body and hot melten type release unit, described lightning arrester body by organic combined insulated overcoat [2], be arranged at interior insulation supporting layer [1] in the insulating coating, in the interior insulation supporting layer [1] number of metal oxide valve block [12], be fixed in top electrode in the insulation supporting layer [1] formed; Described release unit comprises bottom electrode [4], disengaging parts, the low-melting alloy [13] that is fixed in interior insulation supporting layer [1], described release unit is arranged at the bottom of lightning arrester body, is electrically connected between described top electrode, valve block [12], bottom electrode [4], disengaging parts, the low-melting alloy [13]; It is characterized in that: the below of described metal oxide valve block [12] is provided with bottom electrode [4] and is connected with metal oxide valve block [12], this bottom electrode [4] internal thread is connected with connecting bolt [11], and the upper end that breaks away from the connection bolt [10] on the parts is connected by low-melting alloy [13] with the lower end of connecting bolt [11] nearby.
2. metal oxide arrester according to claim 1, it is characterized in that: described connecting bolt [11] is threaded with bottom electrode [4], the bottom of described connecting bolt [11] is that diameter becomes big termination [15], the lower surface of bottom electrode [4] is close in the upper surface of this termination [15], have groove as the molten bath in the bottom surface of termination [15], the big upper surface of change of connection bolt [10] is inserted in the described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242834 CN2330045Y (en) | 1997-12-04 | 1997-12-04 | Metallic oxide lighting protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242834 CN2330045Y (en) | 1997-12-04 | 1997-12-04 | Metallic oxide lighting protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2330045Y true CN2330045Y (en) | 1999-07-21 |
Family
ID=33951957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242834 Expired - Fee Related CN2330045Y (en) | 1997-12-04 | 1997-12-04 | Metallic oxide lighting protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2330045Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392810A (en) * | 2014-11-25 | 2015-03-04 | 辽宁华隆电力科技有限公司 | Hot-melting lightning arrester disconnecting mechanism |
| CN109360701A (en) * | 2018-11-05 | 2019-02-19 | 国网上海市电力公司 | A kind of low voltage surge arrester with built-in disconnector |
| CN109378146A (en) * | 2018-11-05 | 2019-02-22 | 国网上海市电力公司 | The method for guaranteeing to be detached from the low voltage surge arrester product qualification rate of component with built-in type hot melt |
| CN109411169A (en) * | 2018-11-05 | 2019-03-01 | 国网上海市电力公司 | A method of improving low voltage surge arrester thermal response speed |
| CN109411168A (en) * | 2018-11-05 | 2019-03-01 | 国网上海市电力公司 | A method of make low voltage surge arrester have the function of to automatically disengage |
-
1997
- 1997-12-04 CN CN 97242834 patent/CN2330045Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392810A (en) * | 2014-11-25 | 2015-03-04 | 辽宁华隆电力科技有限公司 | Hot-melting lightning arrester disconnecting mechanism |
| CN104392810B (en) * | 2014-11-25 | 2017-07-21 | 辽宁华隆电力科技股份有限公司 | One kind hot melt arrester releasing mechanism |
| CN109360701A (en) * | 2018-11-05 | 2019-02-19 | 国网上海市电力公司 | A kind of low voltage surge arrester with built-in disconnector |
| CN109378146A (en) * | 2018-11-05 | 2019-02-22 | 国网上海市电力公司 | The method for guaranteeing to be detached from the low voltage surge arrester product qualification rate of component with built-in type hot melt |
| CN109411169A (en) * | 2018-11-05 | 2019-03-01 | 国网上海市电力公司 | A method of improving low voltage surge arrester thermal response speed |
| CN109411168A (en) * | 2018-11-05 | 2019-03-01 | 国网上海市电力公司 | A method of make low voltage surge arrester have the function of to automatically disengage |
| CN109360701B (en) * | 2018-11-05 | 2020-08-14 | 国网上海市电力公司 | Low-voltage lightning arrester with built-in disconnector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |