CN2819422Y - Switching dustproofing contact of super-voltage isolated switch - Google Patents
Switching dustproofing contact of super-voltage isolated switch Download PDFInfo
- Publication number
- CN2819422Y CN2819422Y CN 200520087435 CN200520087435U CN2819422Y CN 2819422 Y CN2819422 Y CN 2819422Y CN 200520087435 CN200520087435 CN 200520087435 CN 200520087435 U CN200520087435 U CN 200520087435U CN 2819422 Y CN2819422 Y CN 2819422Y
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- contact
- fixedly connected
- dust cap
- fixed contact
- dust
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Abstract
The utility model relates to a contact used for an isolating switch, particularly a switching dustproof contact of a super-voltage isolating switch, which is used for an extra high-voltage or ultra high-voltage electric network. The utility model comprises a shell body and static contacts arranged in the shell body in parallel, wherein the shell body is provided with strip-shaped holes which are parallel to the static contacts, the static contacts positioned at two sides of the inner part of each of the strip-shaped holes are fixedly connected with a static contact bracket, and the static contact bracket is fixedly connected with a base. Two sides of the strip-shaped holes in the shell body are respectively provided with a dustproof cover rotating shaft, a dustproof cover and a resetting crank arm are fixedly connected into an angle and arranged on the dustproof cover rotating shaft, the resetting crank arm is connected with a restoring spring of the dustproof cover and the other end of the restoring spring of the dustproof cover is fixedly connected with the base. The utility model has the advantage of better dustproof effect can simultaneously increase the contacting efficiency between the static contacts.
Description
Technical field
The utility model relates to a kind of contact that is used for isolating switch, in particular for the cut-in type extra-high-voltage isolated switch dust-proof contact of superhigh pressure or extra-high voltage grid.
Background technology
Vertical breakaway-element isolating switch is the common equipment that is applied in the superhigh pressure transformer station, its operation principle is to utilize of being arranged on each phase line can vertically revolve the connecting rod that turn 90 degrees to connect the termination, connecting rod is the straight-bar of fixing, the rotation connecting rod makes its moving contact incision fixed contact during combined floodgate, during separating brake connecting rod is revolved to turn 90 degrees to lift to get final product.But because connecting rod is a straight-bar, incision fixed contact in moving contact almost horizontal ground during feed motion, two groups of parallel reeds of the common employing of fixed contact are as the contact, owing to there is not dust prevention, reed is subjected to the pollution of dust easily, sleety weather particularly, ice and snow enter in the reed and freeze easily, cause switch motion malfunctioning.
Summary of the invention
The purpose of this utility model provides a kind of cut-in type extra-high-voltage isolated switch dust-proof contact with dustproof effect.
For achieving the above object, the utility model adopts following technical scheme:
Cut-in type extra-high-voltage isolated switch dust-proof contact described in the utility model comprises housing and the fixed contact that is installed in parallel in the housing, have the strip hole parallel on the housing with fixed contact, fixed contact is positioned at the both sides of this inside, strip hole, be fixedly connected on the fixed contact support, the fixed contact support is fixedly connected on the base, one dust cap rotating shaft respectively is installed on the housing of both sides, strip hole, dust cap is fixedlyed connected angled with the connecting lever that resets, be installed in the dust cap rotating shaft, resetting connects the dust cap back-moving spring on the connecting lever, and the other end of dust cap back-moving spring is fixedly connected on the base.
Have wavy groove on the relative face of above-mentioned two fixed contacts.
After adopting technique scheme, the utlity model has following advantage:
1, closing a floodgate still is that gate-dividing state all has dust cap to cover the fixed contact top, prevents that dust and sleet from polluting fixed contact;
2, wavy groove has improved the elasticity of fixed contact on the fixed contact, guarantees that moving contact contacts well with fixed contact.
3, anti-icing function is strong, just can realize divide-shut brake smoothly as long as utilize the inertia force ice sheet that the dust cap end face is very little to disconnect when contact freezes.
Description of drawings
Fig. 1 is the cutaway view of an embodiment of the present utility model;
The A-A cutaway view of Fig. 2 Fig. 1;
Fig. 3 fixed contact is cut the cutaway view of moment.
Embodiment
As shown in Figure 1 and Figure 2, cut-in type extra-high-voltage isolated switch dust-proof contact of the present utility model comprises housing 21 and the fixed contact 22 that is installed in parallel in the housing 21, have the strip hole parallel on the housing 21 with fixed contact 22, two row's fixed contacts 22 lay respectively at the both sides of this inside, strip hole, be fixedly connected on the fixed contact support 23, fixed contact support 23 is fixedly connected on the base, have wavy groove 28 on the relative face of two fixed contacts 22, so that contact with moving contact better, this groove 28 can be as shown in this embodiment one also can be parallel many.A dust cap rotating shaft 24 respectively is installed on the housing 21 of both sides, strip hole, dust cap 25 is fixedlyed connected angled with the connecting lever 27 that resets, be installed in the dust cap rotating shaft 24, the dust cap 25 and the connecting lever 27 that resets can be swung around dust cap rotating shaft 24, dust cap 25 is positioned at the outside of housing 21, the connecting lever 27 that resets is positioned at the inside of dust cap rotating shaft 24, connects dust cap back-moving spring 26 on the connecting lever 27 that resets, and the other end of dust cap back-moving spring 26 is fixedly connected on the base.
Under the gate-dividing state, as shown in Figure 1, dust cap back-moving spring 26 connecting lever 27 tension that will reset makes dust cap 25 flatly cover the strip hole, avoids dust to enter housing 21 inside; During feed motion, as shown in Figure 3, in the time of moving contact 41 incision fixed contacts, moving contact 41 at first backs down dust cap 25, makes the connecting lever 27 that resets turn over an angle, the space of moving contact 41 between two dust caps 25 enters the housing 21, and finally be stuck between two fixed contacts 22, after moving contact 41 put in place, dust cap 25 resetted under the effect of dust cap back-moving spring 26, still cover the strip hole above, play the dustproof effect.As a same reason, separating brake moves at first, and moving contact 41 at first backs down dust cap 25, and after moving contact 41 left housing 21, dust cap 25 resetted under the effect of dust cap back-moving spring 26, still cover the strip hole above, play the dustproof effect.
Wavy groove on the fixed contact 22 has improved the elasticity of fixed contact 22, fixed contact 22 is contacted with moving contact 41 better, wavy groove does not have sharp-pointed flex point simultaneously, can avoid the generation of partial discharge phenomenon, helps prolonging the useful life of fixed contact 22.
Claims (2)
1, cut-in type extra-high-voltage isolated switch dust-proof contact, comprise housing (21) and be installed in parallel in fixed contact (22) in the housing (21), have the strip hole parallel on the housing (21) with fixed contact (22), fixed contact (22) is positioned at the both sides of this inside, strip hole, be fixedly connected on the fixed contact support (23), fixed contact support (23) is fixedly connected on the base, it is characterized in that: a dust cap rotating shaft (24) respectively is installed on the housing (21) of both sides, strip hole, dust cap (25) is fixedlyed connected angled with the connecting lever that resets (27), be installed in the dust cap rotating shaft (24), the connecting lever (27) that resets is gone up and is connected dust cap back-moving spring (26), and the other end of dust cap back-moving spring (26) is fixedly connected on the base.
2, cut-in type extra-high-voltage isolated switch dust-proof contact according to claim 1 is characterized in that: have wavy groove (28) on the relative working face of two fixed contacts (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087435 CN2819422Y (en) | 2005-09-26 | 2005-09-26 | Switching dustproofing contact of super-voltage isolated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087435 CN2819422Y (en) | 2005-09-26 | 2005-09-26 | Switching dustproofing contact of super-voltage isolated switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2819422Y true CN2819422Y (en) | 2006-09-20 |
Family
ID=37005481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087435 Expired - Fee Related CN2819422Y (en) | 2005-09-26 | 2005-09-26 | Switching dustproofing contact of super-voltage isolated switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2819422Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373510C (en) * | 2005-09-26 | 2008-03-05 | 王光顺 | Cut-in type extra-high-voltage isolated switch dust-proof contact |
| EP3422380A4 (en) * | 2016-02-26 | 2019-10-16 | ABB Schweiz AG | Disconnecting switch having anti-icing device |
-
2005
- 2005-09-26 CN CN 200520087435 patent/CN2819422Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373510C (en) * | 2005-09-26 | 2008-03-05 | 王光顺 | Cut-in type extra-high-voltage isolated switch dust-proof contact |
| EP3422380A4 (en) * | 2016-02-26 | 2019-10-16 | ABB Schweiz AG | Disconnecting switch having anti-icing device |
| US10622166B2 (en) | 2016-02-26 | 2020-04-14 | Abb Schweiz Ag | Disconnecting switch having anti-icing 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 |