CN201229887Y - Overheating prevention knife brake - Google Patents
Overheating prevention knife brake Download PDFInfo
- Publication number
- CN201229887Y CN201229887Y CNU2008200138543U CN200820013854U CN201229887Y CN 201229887 Y CN201229887 Y CN 201229887Y CN U2008200138543 U CNU2008200138543 U CN U2008200138543U CN 200820013854 U CN200820013854 U CN 200820013854U CN 201229887 Y CN201229887 Y CN 201229887Y
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- CN
- China
- Prior art keywords
- joints
- joint
- conducting wires
- disconnecting link
- sides
- 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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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to the electric equipment, in particular to an anti-overheating switch. The switch is formed by connecting more than two conductive bars 9 through foldable joints 7. The anti-overheating switch is characterized in that the conductive parts at the two sides of the joints 7 are connected through soft conducting wires 8. Because the conductive parts at the two sides of the joints 7 are communicated through soft conducting wires 8, when the components coupled with the joints have poor contact, the circuits at the two sides of the joints are still smooth, and thus the over-heating and temperature-increasing phenomenon can not occur at the gap. Because the conducting wires 8 are soft, the bending and extending movement of the joints 7 can not be influenced. In particular, because a sealing sleeve 13 is arranged outside the soft conducting wires 8, the dust can be prevented from falling into the contacts; further the conductive performance of the conducting wires is ensured; the over-heating hidden danger of the switch is completely eliminated; and the secure power supply is guaranteed.
Description
Technical field
The utility model relates to a kind of power equipment, promptly a kind of anti-overheated disconnecting link.
Background technology
Here said disconnecting link mainly is meant the isolating switch that transformer station is commonly used, particularly the GW16/17 type disconnecting link of installing and using in a large number at present.This disconnecting link is the switch that connects between the two-stage transportion wire road.Disconnecting link is to be made of base, control cabinet, drive link and two sections conducting rods etc., between conducting rod and the base, is linked to each other by the rotating shaft joint between conducting rod and the conducting rod, and under the control of control device, two sections conducting rods can fold around the joint or stretch.When conducting rod folded, two-stage circuit disconnected.Otherwise, after conducting rod stretches, the stationary contact bar of the lucky clamping higher level of the fingertip transmission line of its upper end, two-stage circuit is communicated with.This type of disconnecting link compact conformation, multiple functional, be the capital equipment of present 220V transformer station., find in the middle of the operation that superheating phenomenon appears in the joint of this disconnecting link often, cause disconnecting link joint internal structure to be ablated and damage that gently then the joint song is stretched ineffectively, heavy then joint internal structure adhesion can't be moved.Have jurisdiction over west of a river transformer station test shows in 2006 to 2007 according to Tongliao, Inner Mongolia Autonomous Region power administration, disconnecting link joint superheating phenomenon takes place repeatedly, wherein has to cause travelling gear and tooth bar scaling loss, serious threat system security of operation twice.Find that through a large amount of experimental observations causing the overheated reason of disconnecting link mainly is that the dust storm foreign material enter the joint, causes rotating even part loose contact, form the gap and resistance and heat increasing.
Summary of the invention
The purpose of this utility model provides that a kind of the joint does not produce superheating phenomenon when the loose contact of disconnecting link joint idol part, the impregnable anti-overheated disconnecting link of the electric conductivity of equipment and action.
Above-mentioned purpose is realized by following technical scheme: develop a kind of anti-overheated disconnecting link, this disconnecting link also is to be formed by connecting through the joint by the above conducting rod of two joints, and be characterized in: the conductive component in both sides, said joint is connected with flexible wire.
The conductive component of said each both sides, joint all is connected to two flexible wire.
The insulated enclosure cover of the coated outside softness of said flexible wire.
The beneficial effects of the utility model are: because both sides, joint conductive component is connected by flexible wire, when the idol part loose contact of joint, two lateral circuits are still unimpeded, thereby can the resistance superheating phenomenon not occur increasing at joint.Because lead is soft, so abarticular song is stretched action.Particularly the lead outside adds sealing shroud, can prevent that dust from entering contact, guarantees the electric conductivity of lead, thereby thoroughly eliminates the overheated hidden danger of disconnecting link, for safe power supply provides guarantee.
Description of drawings
Fig. 1 is the folding closed condition figure of the disconnecting link of a kind of embodiment;
Fig. 2 is that the disconnecting link of this embodiment stretches on-state figure;
Fig. 3 is the front view of the parts flexible wire of this embodiment;
Fig. 4 is the vertical view of the parts flexible wire of this embodiment;
Fig. 5 is the parts flexible wire of this embodiment and the front view of sealing shroud;
Fig. 6 is the parts flexible wire of this embodiment and the vertical view of sealing shroud.
Among the figure can: lock seat 1, control cabinet 2, drive link 3, transmission porcelain vase 4, pull bar 5, output cable 6, joint 7, flexible wire 8, conducting rod 9, contact 10, fingertip 11 is supported porcelain vase 12, sealing shroud 13, input circuit stationary contact bar 14.
Embodiment
Fig. 1 and Fig. 2 have represented two kinds of operating states of GW16/17-220 type disconnecting link respectively.As seen, this disconnecting link has a column lock seat 1 among the figure, and a control cabinet 2 is fixed on the next door, in the control cabinet 2 operating mechanism is arranged, upwards drive transmission porcelain vases 4 and rotate through drive link 3, two joint conducting rods 9 above pull bar 5 drives again, carry out Fig. 1 such fold or Fig. 2 is such stretches action.Contact 10 and fingertip 11 above two joint conducting rods, the 9 folding backs will be separated with aerial input circuit feeler lever 14.Contact 10 and fingertip 11 that two joint conducting rods 9 stretch above the back will engage with aerial input circuit feeler lever 14.As seen, in said process, use two joints 7 up and down among the figure.Being the joint 7 between the conducting rod 9 above, is the joint 7 between conducting rod 9 and the output cable 6 below.Said overheating fault just goes out in these 7 the insides, two joints.As seen from the figure, 7 places have increased by one section flexible wire 8 in the joint, are communicated with the both sides, joint, and when the loose contact of joint 9 interior bonds idol part, flexible wire 8 can be electric current sufficient passage is provided, and it is overheated to avoid the joint to increase resistance thus.The connected mode of flexible wire 8 is a lot, generally is to connect two flexible wire 8 at each 7 place, joint.
The form of flexible wire 8 also has multiple, and what Fig. 3,4 represented is a kind of exposed lead, can be single cylindric lead, also can be the lead of filament braiding, no matter be what cross sectional shape, as long as possess suitable conductive capability.
Also there is contact in the assembling of flexible wire 8, because these contacts are all fixed, the problem of loose contact generally can not occur.,, can adopt Fig. 5,6 sealing lead, promptly at the sealing shroud 14 of coated outside one deck flexible insulation of flexible wire 8 for more reliable.This envelope 14 can select for use anti-aging rubber to make.This layer envelope 14 arranged, and the reliability of flexible wire 8 and durability are inevitable significantly to be strengthened.
Claims (3)
1. prevent overheated disconnecting link for one kind, this disconnecting link is to be formed by connecting by above conducting rod (9) and folding joint (7) of two joints, and it is characterized in that: the conductive component in both sides, said joint (7) is connected with flexible wire (8).
2. anti-overheated disconnecting link according to claim 1, it is characterized in that: the conductive component of both sides, said joint (7) all is connected to two flexible wire (8).
3. anti-overheated disconnecting link according to claim 1 and 2 is characterized in that: the insulated enclosure cover (14) of the coated outside softness of said flexible wire (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200138543U CN201229887Y (en) | 2008-07-03 | 2008-07-03 | Overheating prevention knife brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200138543U CN201229887Y (en) | 2008-07-03 | 2008-07-03 | Overheating prevention knife brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229887Y true CN201229887Y (en) | 2009-04-29 |
Family
ID=40634828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200138543U Expired - Fee Related CN201229887Y (en) | 2008-07-03 | 2008-07-03 | Overheating prevention knife brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229887Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008915A (en) * | 2014-06-16 | 2014-08-27 | 国家电网公司 | Burning-preventing pole-mounted disconnecting link |
| CN109616361A (en) * | 2018-11-20 | 2019-04-12 | 国网天津市电力公司 | 10kV disconnecting link overheat indicator |
| CN110412459A (en) * | 2019-08-01 | 2019-11-05 | 国网浙江省电力有限公司检修分公司 | A kind of secondary loop of mutual inductor is switched fast operating mechanism |
-
2008
- 2008-07-03 CN CNU2008200138543U patent/CN201229887Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008915A (en) * | 2014-06-16 | 2014-08-27 | 国家电网公司 | Burning-preventing pole-mounted disconnecting link |
| CN109616361A (en) * | 2018-11-20 | 2019-04-12 | 国网天津市电力公司 | 10kV disconnecting link overheat indicator |
| CN110412459A (en) * | 2019-08-01 | 2019-11-05 | 国网浙江省电力有限公司检修分公司 | A kind of secondary loop of mutual inductor is switched fast operating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20100703 |