CN201622942U - Novel static contact device of indoor high-voltage grounding switch - Google Patents
Novel static contact device of indoor high-voltage grounding switch Download PDFInfo
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- CN201622942U CN201622942U CN2010201333714U CN201020133371U CN201622942U CN 201622942 U CN201622942 U CN 201622942U CN 2010201333714 U CN2010201333714 U CN 2010201333714U CN 201020133371 U CN201020133371 U CN 201020133371U CN 201622942 U CN201622942 U CN 201622942U
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Abstract
The utility model relates to a novel static contact device of an indoor high-voltage grounding switch, which comprises a copper base, wherein both sides of the copper base are respectively provided with a copper plate, a cushion pad is arranged between the copper plates at both sides, the cushion pad is fixed on the copper base, the outer sides of the copper plates are respectively provided with a support plate, the bottom of the support plate is fixed on the copper base, and a disc spring is arranged between the support plate and the copper plate. The static contact of the utility model has compact and reasonable integral structure, reduces copper consumption on the premise of ensuring the electrical and mechanical properties of the grounding switch, reduces the cost, simplifies the processes, has good electrical and mechanical properties, and is especially suitable for 31.5-40kA current intensity.
Description
Technical field
The utility model relates to the fixed contact of a kind of contact of high-voltage appliance switch, particularly high voltage ground switch.
Background technology
Along with integrating with of power transmission and distribution field GB and IEC standard, comprise that for high-voltage switch gear electric and requirement mechanical performance of earthed switch further improves; Simultaneously, along with country greatly develops low-carbon economy, also require the energy-conserving and environment-protective more of various products.The flat grip formula of original earthed switch tradition contour structures has shown and has fallen behind, can not adaptive technique and the requirement of social progress.China utility model patent ZL200620129485.5 discloses a kind of high voltage ground switch bulge type static contact head device, comprise the copper pedestal, the copper base bottom has the screw that is fixed on the busbar, the both sides of pedestal have a slice steel spring plate and two copper coins respectively, steel spring plate lays respectively at two copper coin outsides, two pairs of copper coins and a pair of steel spring plate are tightened by bolt and are fixed on the copper pedestal, the top of copper coin and steel spring plate has the backflash of some equal heights, be suppressed with same R bulge on the copper coin of both sides and the steel spring plate, the copper coin and the steel spring plate of both sides are symmetrical, be provided with cushion pad between the copper coin of both sides, cushion pad is fixed on the copper pedestal.This utility model patent helps entering of movable touch knife, and electric, mechanical performance all is enhanced than former traditional structure.The shortcoming that this utility model patent mainly exists is: steel spring plate need carry out Q-tempering and handle when making, and quality requirement is than higher, complex procedures.In addition, a side adopts two copper coins, and the material use amount is big, the cost height.
The utility model content
The purpose of this utility model is to provide a kind of electric and good mechanical property at existing earthed switch fixed contact above shortcomings part, makes the novel static contact head device simple, that cost is low.
The technical scheme that technical problem adopted that the utility model solves is:
The novel static contact head device of a kind of indoor hv earthing switch, comprise the copper pedestal, the both sides of copper pedestal are respectively equipped with copper coin, be provided with cushion pad between the copper coin of both sides, cushion pad is fixed on the copper pedestal, it is characterized in that the described copper coin outside is respectively equipped with supporting bracket, the supporting bracket bottom is fixed on the copper pedestal, is provided with the dish spring between supporting bracket and copper coin.In the time of concrete the use, supporting bracket steel plate compression moulding plays a supportive role to the dish spring.The dish spring is fixed with fixture, as: an available bolt passes supporting bracket, dish spring and copper coin and fixes with nut, also can adopt fixed lever to pass supporting bracket, dish spring and copper coin and buckle sealing calmly with clasp.By dish spring compression produce suitable contact contact pressure and bear short circuit current by the time electric power shock loading that produces.One side of pedestal adopts a slice copper coin, compares than two copper coins of original employing one side, has saved copper consumption, has reduced cost.
During concrete enforcement, two side copper plate front ends are the arcuate shape that concaves, and guarantee fully to contact with movable touch knife when closing a floodgate.Two copper coins form a bell guide, contact well with movable touch knife in the time of can guaranteeing to close a floodgate, and close fashionable the entering of movable touch knife that be very beneficial for again fast, have improved functional reliability greatly.
During concrete enforcement, have backflash on the copper coin.Copper coin processing backflash utilizes electric power to hold principle tightly, increase electric current by the time contact pressure, reduce contact resistance, prevent contact melting welding.
Disk spring has that volume is little, load is big, be used in combination characteristics such as convenient, has the advantage that load concentration is transmitted simultaneously.Can adopt modes such as the involutory combination of monolithic, the superimposed combination of multi-disc and hybrid combining to obtain various different curves.In mechanical industry, replace cylindrically coiled spring in very on a large scale, embodied the characteristics of small design multifunction.As on the load action direction, less deformation energy bears bigger load, the axial space compactness.Compare with the spring of other types, the deformation energy of its unit volume is bigger, has to cushion damping capaicty preferably.
The beneficial effects of the utility model are: the contact contact pressure is produced by the compression of dish spring, dish spring deflection is little, bearing capacity is big, very high buffering vibration absorption ability is arranged, and can in certain deformation range, keep the load substantially constant, can effectively alleviate short circuit current by the time electric power vibration that produces.The utility model fixed contact compact overall structure is reasonable, under the prerequisite that guarantees the electric and mechanical performance of earthed switch, has reduced copper consumption, reduced cost, simplified operation, and electric, good mechanical property, be specially adapted to the novel static contact head device that 31.5-40kA current strength is used.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the end view of Fig. 1 of the utility model embodiment.
Fig. 3 is the structural representation that the utility model embodiment and switch on of moving contact are used.
Among the figure: 1, supporting bracket 2, copper coin 3, cushion pad 4, check bolt 5, copper pedestal 6, fixture 7, dish spring 8, screw 9, moving contact 21, backflash 22, interior concave point
Embodiment
In Fig. 1, Fig. 2 and Fig. 3, the novel static contact head device of a kind of indoor hv earthing switch, comprise copper pedestal 5, copper pedestal 5 bottoms are provided with two whole contact apparatus are fixed on screw on the busbar, the both sides of copper pedestal 5 are respectively equipped with copper coin 2, copper coin 2 front ends are the arcuate shape that concaves, concave point 22 in forming, two copper coins 2 form a bell guide, contact well with movable touch knife in the time of can guaranteeing to close a floodgate, close fashionable the entering of movable touch knife that be very beneficial for again fast, improved functional reliability greatly.Copper coin has backflash 21 on 2 centres.Be provided with cushion pad 3 between the copper coin 2 of both sides, cushion pad 3 is the silicon rubber cushion pad, impulsive force when slowing down quick combined floodgate, cushion pad 3 is half shaped as frame, cushion pad 3 usefulness screws 8 are fixed on the copper pedestal 5, and copper coin 2 outsides are respectively equipped with supporting bracket 1, and supporting bracket 1 bottom is fixed on the copper pedestal 5 with two check bolts, 2 of supporting bracket 1 and copper coins are provided with dish spring 7, and dish spring 7 is an opposite dish spring.Pass the backflash 21 of supporting bracket 1, opposite dish spring 7 and copper coin 2 fixes with a fixture 6.Supporting bracket 1 steel plate compression moulding plays a supportive role to dish spring 7.Among Fig. 3, two side copper plates, 2 front ends are the arcuate shape that concaves, concave point 22 in forming, and the interior concave point 22 of moving contact 9 and two side copper plates 2 forms line and contacts, and guarantees fully to contact good electric property with moving contact 9 when closing a floodgate.Simultaneously, electric power was held copper sheet inwards tightly when backflash 21 can make by big electric current, had strengthened contact pressure.The contact contact pressure is produced by dish spring 7 compression, and dish spring 7 deflections are little, bearing capacity is big, and very high buffering vibration absorption ability is arranged, and can keep the load substantially constant in certain deformation range, can effectively alleviate short circuit current by the time electric power vibration that produces.
The fixed contact compact overall structure is reasonable, used the electrodynamic force direction that is subjected to dexterously, alleviate operating physical force, and improved the electric property and the mechanical performance of switch, improved the reliability of switch greatly, simultaneously, reduce copper consumption, reduced cost, simplified operation, and electric, good mechanical property is specially adapted to the novel static contact head device that 31.5-40kA current strength is used.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present utility model all should be thought protection range of the present utility model.
Claims (3)
1. novel static contact head device of indoor hv earthing switch, comprise the copper pedestal, the both sides of copper pedestal are respectively equipped with copper coin, be provided with cushion pad between the copper coin of both sides, cushion pad is fixed on the copper pedestal, it is characterized in that the described copper coin outside is respectively equipped with supporting bracket, the supporting bracket bottom is fixed on the copper pedestal, is provided with the dish spring between supporting bracket and copper coin.
2. the novel static contact head device of a kind of indoor hv earthing switch according to claim 1 is characterized in that at above-mentioned two side copper plate front ends be the arcuate shape that concaves.
3. the novel static contact head device of a kind of indoor hv earthing switch according to claim 1 and 2 is characterized in that having backflash on above-mentioned copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201333714U CN201622942U (en) | 2010-03-17 | 2010-03-17 | Novel static contact device of indoor high-voltage grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201333714U CN201622942U (en) | 2010-03-17 | 2010-03-17 | Novel static contact device of indoor high-voltage grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622942U true CN201622942U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201333714U Expired - Lifetime CN201622942U (en) | 2010-03-17 | 2010-03-17 | Novel static contact device of indoor high-voltage grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622942U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617918A (en) * | 2013-12-12 | 2014-03-05 | 铁岭市世纪电力设备有限公司 | Disconnecting link component of outdoor alternating current high-voltage disconnecting switch |
| WO2014071791A1 (en) | 2012-11-07 | 2014-05-15 | 江山市电器技术开发有限公司 | Strong-current fixed contact device of high-voltage ground switch |
| CN103971955A (en) * | 2013-02-05 | 2014-08-06 | 阿斯科动力科技公司 | Parallel type transfer switch contact assembly |
| CN108899246A (en) * | 2018-08-15 | 2018-11-27 | 贵州航天电器股份有限公司 | A kind of acceleration overload absorbing switching device |
-
2010
- 2010-03-17 CN CN2010201333714U patent/CN201622942U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014071791A1 (en) | 2012-11-07 | 2014-05-15 | 江山市电器技术开发有限公司 | Strong-current fixed contact device of high-voltage ground switch |
| US9384909B2 (en) | 2012-11-07 | 2016-07-05 | Jiangshan Electric Technology Development Co., Ltd. | Strong current static contact device for high voltage earthing switches |
| EP2919247A4 (en) * | 2012-11-07 | 2016-08-10 | Jiangshan Electric Technology Dev Co Ltd | Strong-current fixed contact device of high-voltage ground switch |
| CN103971955A (en) * | 2013-02-05 | 2014-08-06 | 阿斯科动力科技公司 | Parallel type transfer switch contact assembly |
| CN103617918A (en) * | 2013-12-12 | 2014-03-05 | 铁岭市世纪电力设备有限公司 | Disconnecting link component of outdoor alternating current high-voltage disconnecting switch |
| CN108899246A (en) * | 2018-08-15 | 2018-11-27 | 贵州航天电器股份有限公司 | A kind of acceleration overload absorbing switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |