CN203466119U - High-voltage isolating switch - Google Patents
High-voltage isolating switch Download PDFInfo
- Publication number
- CN203466119U CN203466119U CN201320403632.3U CN201320403632U CN203466119U CN 203466119 U CN203466119 U CN 203466119U CN 201320403632 U CN201320403632 U CN 201320403632U CN 203466119 U CN203466119 U CN 203466119U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- moving
- fingertip
- static
- 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
- 230000003068 static Effects 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Abstract
The utility model is a high-voltage isolating switch comprising a moving contact-static contact contacting part, an upper conductive arm (6), a connecting fork (7), a lower conductive arm (8) and a base (9) which are connected in sequence. The moving contact-static contact contacting part comprises a static contact tube (1), moving contact conduction bands (3), moving contact fingers (2), a moving contact seat (4) and a conductive aluminum plate (5), wherein the two symmetrical groups of moving contact conduction bands (3) are respectively positioned on the two sides of the movable contact seat (4), the two ends of each group of moving contact conduction bands (3) are respectively connected to the movable contact seat (4) and the moving contact fingers (2), the static contact tube (1) is shaped as an elliptic cylinder, and the static contact tube (1) is positioned between the two groups of moving contact fingers (2) to enable an elliptic cylindrical short axis side of the static contact tube (1) to be in contact with the moving contact fingers (2). According to the isolating switch provided by the utility model, the area of contact between the fingers and the static contact tube is increased, and the contact resistance is reduced.
Description
Technical field
The present invention is isolating switch in a kind of electric power system, specifically GW17-550 type high voltage isolator dynamic/static contact contact portion static contact structure.
Background technology
High voltage isolator is to be mainly for isolated high-voltage power supply, guarantees safety inspection, and can the certain electric current of break-make.Wherein, dynamic/static contact contact portion is the crucial contact site of whole galvanic circle, and during combined floodgate, fingertip contacts with fixed contact, and operating current flows through fingertip and fixed contact, and therefore, the quality of fingertip and fixed contact contact-making surface, will directly affect the service behaviour of isolating switch.The problem that existing structure exists is: fingertip relies on a line to realize with contacting of fixed contact, and contact resistance is larger, and along with the increasing of number of operations, fingertip can grind groove mark on fixed contact, not only affects switch performance, also increase greatly of operating physical force simultaneously.
Summary of the invention
Technical problem: technical problem to be solved by this invention is little for the fingertip of moving contact and fixed contact of isolating switch contact portion and the contact area of fixed contact, contact resistance is large, the serious problem of generating heat, the technical scheme that provides a kind of static contact isolation switch tubular construction to optimize, the contact area of fingertip and stationary contact head tube is strengthened, and contact resistance diminishes.
Technical scheme: the present invention adopts a kind of high voltage isolator, comprise the dynamic/static contact contact portion being linked in sequence, upper conductive arm, yoke, lower conductive arm, base, described dynamic/static contact contact portion comprises stationary contact head tube, moving contact conductive strips, moving contact fingertip, movable contact block, conduction aluminium sheet, described moving contact conduction is with two groups of symmetry, lay respectively at the both sides of movable contact block, the two ends of each group moving contact conductive strips are connected on movable contact block and moving contact fingertip, stationary contact head tube is cylindroid shape, stationary contact head tube is between two groups of moving contact fingertips, the cylindroid minor axis limit of stationary contact head tube is contacted with moving contact fingertip.
Described moving contact fingertip is shaped as U-shaped.
Beneficial effect: the present invention designs GW17-550 type high voltage isolator dynamic/static contact contact portion static contact structure, has following advantage:
(1) fingertip of moving contact and fixed contact of isolating switch contact portion and fixed contact contact-making surface strengthen, and radiating effect is better, can to fixed contact, not cause the losses such as impression, has guaranteed the performance of switch.
(2) moving contact and fixed contact of isolating switch separating brake, close a floodgate more safe and reliable.
Accompanying drawing explanation
Fig. 1 is high voltage isolator overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of the oval fixed contact of isolating switch of the present invention.
Embodiment
As shown in Figure 1, a kind of high voltage isolator of the present invention, comprises stationary contact head tube 1, moving contact conductive strips 3, moving contact fingertip 2, movable contact block 4, conduction aluminium sheet 5, upper conductive arm 6, yoke 7, lower conductive arm 8, base 9; Dynamic/static contact contact portion, comprise stationary contact head tube 1, moving contact conductive strips 3, moving contact fingertip 2, movable contact block 4, conduction aluminium sheet 5, described moving contact conductive strips 3 are connected on movable contact block 4 and moving contact fingertip 2, by moving contact fingertip 2, contact with stationary contact head tube 1, make current flowing.The present invention is by the fixed contact control ovalisation fixed contact contacting with isolating switch moving contact fingertip 2, and the contact area of fingertip and stationary contact head tube is strengthened, and contact resistance diminishes, if Fig. 2 is the partial structurtes schematic diagram of switch touching abutment part.
In GW17-550 type high voltage isolator, adopt the present invention, its moving contact fingertip 2 increases to 160mm with the contact radius of stationary contact head tube 1 by original 40mm, and contact width increases to 0.2313mm by 0.11565mm, and the contact area of single fingertip and fixed contact is by 0.4626mm
2increase to 0.9252mm
2, the total contact area of fingertip and fixed contact is by 7.4016mm
2increase to 14.8032mm
2, contact resistance is reduced to 3 μ Ω by 5 original μ Ω.
Claims (2)
1. a high voltage isolator, comprise the dynamic/static contact contact portion being linked in sequence, upper conductive arm (6), yoke (7), lower conductive arm (8), base (9), it is characterized in that: described dynamic/static contact contact portion comprises stationary contact head tube (1), moving contact conductive strips (3), moving contact fingertip (2), movable contact block (4), conduction aluminium sheet (5), described moving contact conductive strips (3) have symmetrical two groups, lay respectively at the both sides of movable contact block (4), the two ends of each group moving contact conductive strips (3) are connected on movable contact block (4) and moving contact fingertip (2), stationary contact head tube (1) is cylindroid shape, stationary contact head tube (1) is positioned between two groups of moving contact fingertips (2), the cylindroid minor axis limit of stationary contact head tube (1) is contacted with moving contact fingertip (2).
2. high voltage isolator as claimed in claim 1, is characterized in that: described moving contact fingertip (2) is shaped as U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403632.3U CN203466119U (en) | 2013-07-08 | 2013-07-08 | High-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403632.3U CN203466119U (en) | 2013-07-08 | 2013-07-08 | High-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466119U true CN203466119U (en) | 2014-03-05 |
Family
ID=50178467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320403632.3U Expired - Fee Related CN203466119U (en) | 2013-07-08 | 2013-07-08 | High-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529663A (en) * | 2016-01-29 | 2016-04-27 | 河南平高电气股份有限公司 | Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly |
| CN107293415A (en) * | 2017-07-27 | 2017-10-24 | 广东北江开关厂有限公司 | One kind is applied to high-tension apparatus high-current switch contact |
-
2013
- 2013-07-08 CN CN201320403632.3U patent/CN203466119U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529663A (en) * | 2016-01-29 | 2016-04-27 | 河南平高电气股份有限公司 | Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly |
| CN105529663B (en) * | 2016-01-29 | 2018-06-26 | 河南平高电气股份有限公司 | Busbar assembly and the Cubicle Gas-Insulated Switchgear using the busbar assembly |
| CN107293415A (en) * | 2017-07-27 | 2017-10-24 | 广东北江开关厂有限公司 | One kind is applied to high-tension apparatus high-current switch contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20200708 |