CN203351493U - Sliding friction structure of closure pole of indoor high voltage vacuum circuit breaker - Google Patents
Sliding friction structure of closure pole of indoor high voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN203351493U CN203351493U CN 201320399267 CN201320399267U CN203351493U CN 203351493 U CN203351493 U CN 203351493U CN 201320399267 CN201320399267 CN 201320399267 CN 201320399267 U CN201320399267 U CN 201320399267U CN 203351493 U CN203351493 U CN 203351493U
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- CN
- China
- Prior art keywords
- sliding friction
- pole
- circuit breaker
- voltage vacuum
- indoor high
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- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a sliding friction structure of a closure pole of an indoor high voltage vacuum circuit breaker. Four spring contact fingers (6) and four guide sleeves (8) are disposed in a mounting groove in a lower outlet (7) of the closure pole. A sliding friction block (5) is provided with a heat emission hole (9). When the sliding friction block (5) rapidly moves upward or downward, the structure not only prevents phenomenon of out of nimbleness with the lower outlet (7), but also improves concentricity of the sliding friction block (5) and the lower outlet (7), thereby improving debugging efficiency of breaker characteristics. The heat emission hole (9) of the sliding friction block provides new path for discharging of heat inside, thereby improving electrical performance of the whole closure pole.
Description
Technical field
The utility model relates to the indoor high-voltage vacuum circuit breaker in a kind of electrical power distribution system, special and large electric current
The syndeton of the pole of indoor high-voltage vacuum circuit breaker is relevant.
Background technology
At present, in domestic electrical power distribution system, vacuum in the pole of large electric current indoor high-voltage vacuum circuit breaker
The arc control device moving conductive rod, with the connection of lower conductive seat, adopts the sliding friction piece directly and the contacted connected mode of fingertip spring on lower wire outlet seat mostly.Because internal environment is more airtight, this connected mode heat radiation difficulty.Simultaneously, due to the sliding friction piece and lower wire outlet seat gap smaller, if the sliding friction piece in circuit breaker on/off switch process with lower outlet clamping stagnation, can cause circuit breaker and refuse to close, refuse minute, have a strong impact on the safety of circuit.Pole is the main conductive circuit of whole circuit breaker, and the performance of pole has directly determined the performance of circuit breaker.
The utility model content
The utility model is to provide that a kind of contact resistance is little, heating less, the sliding friction structure of good, the flexible indoor high-voltage vacuum breaker solid sealed pole without clamping stagnation of radiating condition.
The technical solution of the utility model is: a kind of sliding friction structure of indoor high-voltage vacuum breaker solid sealed pole, be characterised in that, and in the mounting groove at pole in lower outlet, alternate spring touch finger and the fairlead of being provided with, have louvre on the sliding friction piece.
The sliding friction structure of the indoor high-voltage vacuum breaker solid sealed pole that the utility model provides, by the fairlead of installing in lower outlet, make the sliding friction piece not only with between the fingertip spring certain contacting but also not contacting with lower outlet inner hole wall be arranged, guaranteed slide block in motion process flexibly, reliable, without clamping stagnation.Aperture on the sliding friction piece, not only guarantee the smooth discharge of pole internal gas flow in motion process, but also be conducive to the discharge of internal heat in running, greatly improved pole electric conductivity and operational reliability.Compact conformation is reasonable, safe and reliable.Be specially adapted to 10～35kV circuit breaker.
The accompanying drawing explanation
Fig. 1 is the structural representation of the sliding friction structure of existing indoor high-voltage vacuum breaker solid sealed pole;
The structural representation of the sliding friction structure embodiment that Fig. 2 is the utility model indoor high-voltage vacuum breaker solid sealed pole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In figure: 1, upper outlet 2, cushion block 3, vacuum interrupter 4, seal 5, sliding friction piece 6, spring touch finger 7, lower outlet 8, fairlead 9, sliding friction piece louvre
As shown in Figure 2, the sliding friction structure of the utility model indoor high-voltage vacuum breaker solid sealed pole is alternate four spring touch fingers 6 and four fairleads 8 of being provided with in the mounting groove in outlet 7 under pole, has louvre 9 on sliding friction piece 5.
When this structure makes progress rapidly or moves downward at sliding friction piece 5, not only avoided the catching phenomenon between sliding friction piece 5 and lower outlet 7, and improved the concentricity of sliding friction piece 5 with lower outlet 7, thereby improved the debugging efficiency of circuit breaker characteristic.The discharge that sliding friction piece louvre 9 is internal heat provides new path, thereby has improved the electric property of whole pole.
Claims (1)
1. the sliding friction structure of an indoor high-voltage vacuum breaker solid sealed pole, it is characterized in that: alternate spring touch finger (6) and the fairlead (8) of being provided with in the mounting groove at pole in lower outlet (7) has louvre (9) on sliding friction piece (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320399267 CN203351493U (en) | 2013-07-05 | 2013-07-05 | Sliding friction structure of closure pole of indoor high voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320399267 CN203351493U (en) | 2013-07-05 | 2013-07-05 | Sliding friction structure of closure pole of indoor high voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351493U true CN203351493U (en) | 2013-12-18 |
Family
ID=49751360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320399267 Expired - Fee Related CN203351493U (en) | 2013-07-05 | 2013-07-05 | Sliding friction structure of closure pole of indoor high voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351493U (en) |
-
2013
- 2013-07-05 CN CN 201320399267 patent/CN203351493U/en not_active Expired - Fee Related
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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: 20131218 Termination date: 20200705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |