CN2428843Y - Metal-dioxide lightning protector with detaching device - Google Patents
Metal-dioxide lightning protector with detaching device Download PDFInfo
- Publication number
- CN2428843Y CN2428843Y CN 00209532 CN00209532U CN2428843Y CN 2428843 Y CN2428843 Y CN 2428843Y CN 00209532 CN00209532 CN 00209532 CN 00209532 U CN00209532 U CN 00209532U CN 2428843 Y CN2428843 Y CN 2428843Y
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- CN
- China
- Prior art keywords
- release unit
- spring
- metal oxide
- overcoat
- arrester
- 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
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Abstract
The utility model relates to a Metal-dioxide lightning protector with a detaching device, which comprises a lightning protector body and a hot melt type detaching device, wherein, the hot melt type detaching device is arranged on the lower part of the lightning protector body. The utility model is mainly characterized in that a welding layer for low melting point alloy is arranged between the lower end surface of a metal casing 5 and the upper end surface of a detaching component body 9; a spring 6 is positioned in the metal casing 5; the middle shaft lines of the spring 6 and the metal casing 5 are coincident; the outer side of the metal casing 5 is connected with the lower part of a lower electrode 4 in a way of screw thread; the spring 6 is in a pressed state; the lightning protector body is electrically connected with the hot melt type detaching device; the spring 6 and the welding layer 7 for low melting point alloy are sealed in the lightning protector. The lightning protector is free from environmental influence and can be reliably used for acid rain, coastal and any bad conditions. The utility model has easy installation and long service life.
Description
The utility model relates to a kind of lightning arrester, refers in particular to a kind of metal oxide arrester with release unit, should be divided into the H01 group in International Patent Classification (IPC).It not only can protect the equipment of electric power system to avoid superpotential harm, can also break away from electrical network when lightning arrester body breaks down automatically, guarantees that electrical network normally moves.
At present, the metal oxide arrester of known band release unit comprises external insulation sleeve, interior insulation supporting layer, end cap, upper/lower electrode, metal zinc oxide valve block, spring, connecting bolt, connection bolt, low-melting alloy, protective cover etc.When lightning arrester was undesired, electrorheological was big, and the valve block heating causes the low-melting alloy fusing at last, under the effect of spring terminals under the lightning arrester is being ejected.The distinct disadvantage that exists is because the composite oxides lightning arrester reaches more than 10 years service life at present, and the installation place of spring then communicates with atmosphere because of the structural design of existing lightning arrester is unreasonable, under the condition of long-term outdoor use, particularly in acid rain or coastal area, spring very easily gets rusty, corrodes, and causes spring malfunctioning at last.This greatly reduces the reliability of release unit, has also influenced the matching in life-span and lightning arrester useful life of release unit.
The purpose of this utility model provides a kind of release unit and lightning arrester is complementary useful life, the metal oxide arrester that release unit can separate with lightning arrester reliably when lightning arrester breaks down.
The purpose of this utility model is achieved through the following technical solutions: described lightning arrester comprises lightning arrester body and hot melten type release unit, and described hot melten type release unit is located at the bottom of lightning arrester body; Main feature is: between the upper surface of the lower surface of metallic sheath (5) and disengaging hardware body (9) a low-melting alloy weld layer (7) is arranged; Spring (6) is positioned at metallic sheath (5), wherein dead in line; The lateral surface of metallic sheath (5) is connected with the bottom rib-loop of bottom electrode (4), and spring (6) is in impaction state, and lightning arrester body and hot melten type release unit are electrically connected; Spring (6) is sealed in lightning arrester inside with low-melting alloy weld layer (7).Described lightning arrester body has one with the fixing all-in-one-piece inner insulating layer (2) of zinc oxide valve plate group (3), bottom electrode (4) and top electrode, clads organic combined insulated overcoat (1) in the outside of described inner insulating layer (2).Described hot melten type release unit comprises metallic sheath (5), spring (6), low-melting alloy weld layer (7), breaks away from hardware body (9), partiting thermal insulation overcoat (10), connecting part.The upper surface of the lower surface of organic combined insulated overcoat (1) and partiting thermal insulation overcoat (10) is tightly connected, and breaks away from hardware body (9) and is tightly connected with partiting thermal insulation overcoat (10).Described connecting part comprises connection bolt (11), plain washer (12), spring washer (13).Described disengaging hardware body (9) is connected with partiting thermal insulation overcoat (10) rib-loop.Breaking away from hardware body (9) is connected with partiting thermal insulation overcoat (10) is also moldable.Organic combined insulated overcoat (1) has a gap (15) with the side of metallic sheath (5).Clad end cap (8) in the lower surface of described organic combined insulated overcoat (1) and the lower part of leaning in the outside.
Below in conjunction with drawings and Examples the utility model is further stated.
Accompanying drawing is the concrete structure chart of the metal oxide arrester of band release unit.Among the figure, 1. organic combined insulated overcoat 2. inner insulating layers 3. zinc oxide valve plate groups 4. bottom electrodes 5. metallic sheaths 6. springs 7. low-melting alloy weld layers 8. end caps 9. break away from hardware body 10. partiting thermal insulation overcoats 11. connection bolts 12. plain washers 13. spring washers 14. annular boss 15. gaps.
Can be clear that from figure described lightning arrester body has one with the fixing all-in-one-piece inner insulating layer (2) of zinc oxide valve plate group (3), bottom electrode (4) and top electrode, clads organic combined insulated overcoat (1) in the outside of described inner insulating layer (2).Described hot melten type release unit comprises metallic sheath (5), spring (6), low-melting alloy weld layer (7), breaks away from hardware body (9), partiting thermal insulation overcoat (10), connecting part.Also can see the lower surface of metallic sheath (5) in the drawings and break away between the upper surface of hardware body (9) a low-melting alloy weld layer (7) is arranged; Spring (6) is positioned at metallic sheath (5), wherein dead in line; The lateral surface of metallic sheath (5) is connected with the bottom rib-loop of bottom electrode (4), and spring (6) is in impaction state, and lightning arrester body and hot melten type release unit are electrically connected; Spring (6) and low-melting alloy weld layer (7) are sealed in lightning arrester inside, and said structure guarantees that this vitals of spring (6) does not communicate with atmosphere, thereby can guarantee that spring (6) can not make moist, gets rusty, burn into loses elastic force.Like this, when lightning arrester was undesired, its internal electrical rheology was big, caused the valve block heating, and this heat is delivered to low-melting alloy weld layer (7) by bottom electrode (4), metallic sheath (5), and this heat can be to melt low-melting alloy weld layer (7); Structure from figure can see that under the effect of spring (6), the following terminals of lightning arrester will be ejected, and reach its intended purposes.Partiting thermal insulation overcoat (10) mainly has been the partiting thermal insulation effect for reaching the purpose of this utility model setting among the figure.During fabrication, the lower surface of metallic sheath (5) and the upper surface that breaks away from hardware body (9) are welded together with low-melting alloy, spring (6) is packed in the metallic sheath (5), periphery at the groove of the bottom of the outside of metallic sheath (5) and bottom electrode (4) respectively has rib-loop, so can be at an easy rate the metallic sheath that is connected with each parts (5) be screwed in the groove of bottom of bottom electrode (4).At this moment, spring (6) is in impaction state, makes lightning arrester body and hot melten type release unit form reliable electrical connection, guarantees spring (6) and outside atmosphere isolation simultaneously.In the design of the bottom of organic combined insulated overcoat (1) annular boss (14) is arranged, then can guarantee a low-melting alloy weld layer (7) and outside atmosphere isolation.Break away from hardware body
(9) can be connected with rib-loop with partiting thermal insulation overcoat (10), also can mold pressing as a whole.Leave gap (15) between the side of described metallic sheath (5) and the annular boss (14) and be that parts can be installed easily and break away from reliably in order to guarantee to break away from.
The utlity model has following advantage:
1. the life-span is long.
2. working stability, safety, reliable.
3. easy to manufacture, easy for installation.
4. cost is low.
5. can under acid rain, coastal and any harsh conditions, use.
Claims (9)
1. metal oxide arrester with release unit, described lightning arrester comprises lightning arrester body and hot melten type release unit, described hot melten type release unit is located at the bottom of lightning arrester body; It is characterized in that: between the upper surface of the lower surface of metallic sheath (5) and disengaging hardware body (9) a low-melting alloy weld layer (7) is arranged; Spring (6) is positioned at metallic sheath (5), wherein dead in line; The lateral surface of metallic sheath (5) is connected with the bottom rib-loop of bottom electrode (4), and spring (6) is in impaction state, and lightning arrester body and hot melten type release unit are electrically connected; Spring (6) is sealed in lightning arrester inside with low-melting alloy weld layer (7).
2. the metal oxide arrester of band release unit according to claim 1, it is characterized in that: described lightning arrester body has one with the fixing all-in-one-piece inner insulating layer (2) of zinc oxide valve plate group (3), bottom electrode (4) and top electrode, clads organic combined insulated overcoat (1) in the outside of described inner insulating layer (2).
3. the metal oxide arrester of band release unit according to claim 1 is characterized in that: described hot melten type release unit comprises metallic sheath (5), spring (6), low-melting alloy weld layer (7), breaks away from hardware body (9), partiting thermal insulation overcoat (10), connecting part.
4. according to the metal oxide arrester of claim 2,3 described band release units, it is characterized in that: the upper surface of the lower surface of organic combined insulated overcoat (1) and partiting thermal insulation overcoat (10) is tightly connected, and breaks away from hardware body (9) and is tightly connected with partiting thermal insulation overcoat (10).
5. the metal oxide arrester of band release unit according to claim 3 is characterized in that: described connecting part comprises connection bolt (11), plain washer (12), spring washer (13).
6. the metal oxide arrester of band release unit according to claim 4 is characterized in that: described disengaging hardware body (9) is connected with partiting thermal insulation overcoat (10) rib-loop.
7. the metal oxide arrester of band release unit according to claim 4 is characterized in that: described disengaging hardware body (9) is connected with partiting thermal insulation overcoat (10) mold pressing.
8. according to the metal oxide arrester of claim 2 and 3 described band release units, it is characterized in that: described organic combined insulated overcoat (1) has a gap (15) with the side of metallic sheath (5).
9. the metal oxide arrester of band release unit according to claim 2 is characterized in that: clad end cap (8) in the lower surface of described organic combined insulated overcoat (1) and the lower part of leaning in the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209532 CN2428843Y (en) | 2000-04-20 | 2000-04-20 | Metal-dioxide lightning protector with detaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209532 CN2428843Y (en) | 2000-04-20 | 2000-04-20 | Metal-dioxide lightning protector with detaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2428843Y true CN2428843Y (en) | 2001-05-02 |
Family
ID=33576624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209532 Expired - Fee Related CN2428843Y (en) | 2000-04-20 | 2000-04-20 | Metal-dioxide lightning protector with detaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2428843Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980622A (en) * | 2019-02-25 | 2019-07-05 | 安徽乐立电气有限公司 | A kind of over-voltage protector with remote failure warning device |
-
2000
- 2000-04-20 CN CN 00209532 patent/CN2428843Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980622A (en) * | 2019-02-25 | 2019-07-05 | 安徽乐立电气有限公司 | A kind of over-voltage protector with remote failure warning device |
| CN109980622B (en) * | 2019-02-25 | 2021-11-05 | 安徽乐立电气有限公司 | Overvoltage protector with remote fault alarm device |
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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 |