CN104201014B - A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use - Google Patents
A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use Download PDFInfo
- Publication number
- CN104201014B CN104201014B CN201310369022.0A CN201310369022A CN104201014B CN 104201014 B CN104201014 B CN 104201014B CN 201310369022 A CN201310369022 A CN 201310369022A CN 104201014 B CN104201014 B CN 104201014B
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- circular arc
- section
- closing switch
- 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.)
- Active
Links
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 description 7
- 230000005686 electrostatic field Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of moving contact and use the rapid closing switch moved end assembly of this moving contact, this moving contact is the tube structure with vertically extending axis of both ends open, circular in cross-section, the inside of this cylinder is provided with the attachment structure for fixing connection insulated tension pole, the hypomere of this cylinder be the sliding conduction section for being slidably matched with dynamic bearing upper end conductive contact vertically, epimere be to contact conductive segment for plug together conductive contact with static contact finger.The moving contact of the present invention uses integral cylinder structure, can reduce the contact resistance of the moved end of rapid closing switch, thus reduce the heat of generation, is conducive to improving the through-current capability of rapid closing switch.This moving contact structure is simple, and quality is little, and the operating work needed on the one hand closing a floodgate is little, and closing speed is fast, on the other hand can suitably increase the diameter of moving contact, which increases the contact area of moving contact and static contact finger, thus improve through-current capability further.
Description
Technical field
The invention belongs to high-voltage direct current switch field, be specifically related to a kind of moving contact, further relate to a kind of rapid closing switch moved end assembly using this moving contact.
Background technology
Every DC transmission engineering is required for corresponding HVDC permutator and carries out the direct current conversion of circuit, and rapid closing switch is a part for HVDC permutator, and it only plays combined floodgate effect in HVDC permutator, does not carries out the disjunction of electric current.
In order to meet job requirement, rapid closing switch must have rapid closing ability, and is resistant to bigger fault current.Its key components and parts of the moving contact of rapid closing switch, for forming the switch quiet end of fracture to the pathway of moved end.The closing speed of rapid closing switch and through-current capability have with the structure of moving contact and directly associate, existing moving contact is combined by several parts, the part contacted with static contact finger and leading electric end are two parts, these parts entirety realizes the functions such as contact circulation conduction, this moving contact total quality is big, contact resistance is big, and therefore closing speed is unhappy, and through-current capability is the strongest.
In recent years, direct current transportation quickly grows by intrinsic advantage, and rapid closing switch is required more and more higher by HVDC transmission system.The specified through-current capability of ± 800kV extra-high voltage direct-current transmission engine request rapid closing switch need to reach 5300A, and ± 1100kV DC transmission engineering requires that its specified through-current capability is 5500A, and existing moving contact structure can not meet ± rapid closing switch of 1100kV DC transmission engineering is to closing speed and the requirement of through-current capability.
Summary of the invention
It is an object of the invention to provide a kind of can reduce contact resistance, the moving contact that can be used for rapid closing switch that through-current capability is strong.Present invention also offers a kind of rapid closing switch moved end assembly using this moving contact simultaneously.
In order to realize object above, moving contact provided by the present invention adopts the following technical scheme that
A kind of moving contact, this moving contact is the tube structure with vertically extending axis of both ends open, circular in cross-section, the inside of this cylinder is provided with the attachment structure for fixing connection insulated tension pole, the hypomere of this cylinder be the sliding conduction section for being slidably matched with dynamic bearing upper end conductive contact vertically, epimere be to contact conductive segment for plug together conductive contact with static contact finger.
The upper end of described contact conductive segment is provided with the arc closing in section of inward collapsible.
The outer contour of described closing in section by with contact conductive segment and smoothly transit the lower transition circular arc middle part circular arc that connect smooth with lower transition circular arc connected and the upper edge that connect smooth with middle part circular arc forms along circular arc, the radius of lower transition circular arc more than upper edge along the radius of circular arc.
Described attachment structure is integrated the connecting plate being arranged at inner barrel, and connecting plate center offers the screwed hole for being connected with insulated tension pole.
Thermal vias is offered on described connecting plate.
The rapid closing switch moved end assembly that the present invention provides adopts the following technical scheme that
A kind of rapid closing switch moved end assembly, dynamic bearing and moving contact by main body structure cylindrical in shape form, described moving contact is the tube structure with vertically extending axis of both ends open, circular in cross-section, the inside of this cylinder is provided with the attachment structure for fixing connection insulated tension pole, the hypomere of this cylinder be the sliding conduction section that is slidably matched with dynamic bearing upper end conductive contact vertically, epimere be to contact conductive segment for plug together conductive contact with static contact finger.
The upper end of described contact conductive segment is provided with the arc closing in section of inward collapsible.
The outer contour of described closing in section by with contact conductive segment and smoothly transit the lower transition circular arc middle part circular arc that connect smooth with lower transition circular arc connected and the upper edge that connect smooth with middle part circular arc forms along circular arc, the radius of lower transition circular arc more than upper edge along the radius of circular arc.
Described attachment structure is integrated the connecting plate being arranged at inner barrel, and connecting plate center offers the screwed hole for being connected with insulated tension pole.
Thermal vias is offered on described connecting plate.
The moving contact employing of the present invention is all-in-one-piece has contact conductive segment and the tube structure of sliding conduction section, can reduce the contact resistance of the moved end of rapid closing switch, thus reduce the heat of generation, be conducive to improving the through-current capability of rapid closing switch.This moving contact structure is simple, and quality is little, and the operating work needed on the one hand closing a floodgate is little, and closing speed is fast, on the other hand can suitably increase the diameter of moving contact, which increases the contact area of moving contact and static contact finger, thus improve through-current capability further.
Further, moving contact topmost has the arc closing in section of inward collapsible, and one is to facilitate moving contact to coordinate with the grafting of static contact finger, and two is can to make the electrostatic field distribution of moving contact more uniformly, is conducive to improving the dielectric level of fracture；The outer contour of closing in section is formed by three sections of circular arc dovetails, so easily the structure of closing in section is optimized, adjusted the radius of three sections of circular arcs by Electrostatic field calculation, make electrostatic field distribution uniform, field intensity extreme point little, thus improve the insulation margin between overall fracture.
Further, described attachment structure is to have the connecting plate of screwed hole, and insulated tension pole can be directly threaded on connecting plate, simple in construction, is conducive to alleviating the weight of moving component；Offering thermal vias on connecting plate, one is that moving contact inner chamber is in communication with the outside, and is conducive to heat radiation, and two is the weight that can alleviate moving contact further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of moving contact；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the enlarged drawing in M region in Fig. 1；
Fig. 4 is moving contact switch fracture texture figure when rapid closing switch in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in further detail.
The embodiment of the moving contact of the present invention:
As shown in Figures 1 to 4, a kind of moving contact, its main body is the tube structure of both ends open, circular in cross-section, the hypomere of this cylinder is for being enclosed within the outside sliding conduction section 2 being slidably matched with dynamic bearing 20 conductive contact in dynamic bearing 20 upper end, the epimere of this cylinder is to contact conductive segment 3 for conduct electricity with static contact finger 30 grafting, and the outer surface of contact conductive segment 3 is the cooperation face contacted with static contact finger 30；The closing in section 4 of inward collapsible it is additionally provided with in the upper end of contact conductive segment 3, closing in section 4 with contact conductive segment 3 and smoothly transit connection, the outer contour of closing in section 4 is made up of three sections of circular arcs, be respectively and contact the conductive segment 3 lower transition circular arc A middle part circular arc B that connect smooth with lower transition circular arc A and the upper edge that connect smooth with middle part circular arc B connected that smoothly transit along circular arc C, the radius of lower transition circular arc A more than upper edge along the radius of circular arc C；The inside of moving contact is additionally provided with for the connecting plate 1 that be connected fixing with insulated tension pole 40, and the center of connecting plate 1 offers for the screwed hole 11 that be connected fixing with insulated tension pole 40, and connecting plate 1 is further opened with thermal vias 12.
The moving contact structure of the present invention is simple, low cost, and through-current capability is strong, and combined floodgate action required merit is little, it is possible to the requirement of satisfied ± 1100kV DC transmission engineering.
In the present embodiment, the top of moving contact is that closing in section 4, beneficially moving contact coordinate with the grafting of static contact finger, and in other embodiments, closing in section can also be saved according to practical situation.
In the present embodiment, the outer contour of closing in section 4 is formed by three sections of circular arc dovetails, generally, lower transition circular arc A radius is the biggest more is conducive to improving the dielectric level of fracture, but crossing conference makes the firm branch (i.e. contact conductive segment 3 with the point of interface of closing in section 4) of moving contact excessive with moving contact the top vertex distance, the dielectric level of fracture can be reduced the most again, and after using the structure of three sections of circular arc dovetails, by Electrostatic field calculation, the radius of three sections of circular arcs can be optimized, the distance between the firm branch of moving contact and summit, the top (i.e. upper edge is along the upper summit of circular arc C) is also shortened while making lower transition circular arc A radius relatively big, so that the fracture texture of the present invention has optimal dielectric level, thus can reduce fracture open away from, thus shorten closing time further.In other embodiments, moving contact upper end can also be one section of circular arc or the arc closing in section with smooth outer contour of two sections of circular arc compositions.
In the present embodiment, the sliding conduction section 2 of moving contact is enclosed within outside dynamic bearing 20 upper end, and the inner surface of sliding conduction section 2 is the matching surface contacted with dynamic bearing 20.In other embodiments, sliding conduction section can also be plugged in the inside of dynamic bearing, and at this moment the outer surface of sliding conduction section is the matching surface contacted with dynamic bearing.
In the present embodiment, connecting plate 1 is to be horizontally placed on the circular slab within moving contact, and top also has thermal vias and screwed hole, in other embodiments, it is also possible to arrange the dowel for fixing connection insulated tension pole of the shapes such as cross inside moving contact.
The embodiment of the rapid closing switch moved end assembly of the present invention:
As shown in Figure 4, a kind of moved end assembly for rapid closing switch, by main body structure cylindrical in shape dynamic bearing 20 and vertically conduction be slidedly assemblied in the moving contact of dynamic bearing 20 upper end and form, the structure of this moving contact is identical with the moving contact structure in above-described embodiment, therefore repeats no more here.
Preferably arranging the gripper shoe 21 that insulated tension pole 40 is supported and is guided in dynamic bearing 20, the center of this gripper shoe 21 offers the supported hole passed through for insulated tension pole, around also offers thermal vias.
This rapid closing switch moved end modular construction is simple, and contact resistance is little, and through-current capability is strong, and closing time is short, it is possible to the requirement of satisfied ± 1100kV DC transmission engineering.
Claims (6)
1. a moving contact, it is characterized in that: this moving contact is both ends open, the tube structure with vertically extending axis of circular in cross-section, the inside of this cylinder is provided with the attachment structure for fixing connection insulated tension pole, the hypomere of this cylinder is the sliding conduction section for being slidably matched with dynamic bearing upper end conductive contact vertically, epimere is to contact conductive segment for plug together conductive contact with static contact finger, the upper end of described contact conductive segment is provided with the arc closing in section of inward collapsible, the outer contour of described closing in section by with contact conductive segment smoothly transit connect lower transition circular arc, the middle part circular arc that connect smooth with lower transition circular arc and the upper edge that connect smooth with middle part circular arc form along circular arc, the radius of lower transition circular arc is more than the upper edge radius along circular arc.
Moving contact the most according to claim 1, it is characterised in that: described attachment structure is integrated the connecting plate being arranged at inner barrel, and connecting plate center offers the screwed hole for being connected with insulated tension pole.
Moving contact the most according to claim 2, it is characterised in that: offer thermal vias on described connecting plate.
null4. a rapid closing switch moved end assembly，It is characterized in that: dynamic bearing and moving contact by main body structure cylindrical in shape form，Described moving contact is both ends open、The tube structure with vertically extending axis of circular in cross-section，The inside of this cylinder is provided with the attachment structure for fixing connection insulated tension pole，The hypomere of this cylinder is the sliding conduction section being slidably matched with dynamic bearing upper end conductive contact vertically、Epimere is to contact conductive segment for plug together conductive contact with static contact finger，The upper end of described contact conductive segment is provided with the arc closing in section of inward collapsible，The outer contour of described closing in section by with contact conductive segment smoothly transit connect lower transition circular arc、The middle part circular arc that connect smooth with lower transition circular arc and the upper edge that connect smooth with middle part circular arc form along circular arc，The radius of lower transition circular arc is more than the upper edge radius along circular arc.
Rapid closing switch moved end the most according to claim 4 assembly, it is characterised in that: described attachment structure is integrated the connecting plate being arranged at inner barrel, and connecting plate center offers the screwed hole for being connected with insulated tension pole.
Rapid closing switch moved end the most according to claim 5 assembly, it is characterised in that: offer thermal vias on described connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369022.0A CN104201014B (en) | 2013-08-22 | 2013-08-22 | A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369022.0A CN104201014B (en) | 2013-08-22 | 2013-08-22 | A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104201014A CN104201014A (en) | 2014-12-10 |
| CN104201014B true CN104201014B (en) | 2016-09-14 |
Family
ID=52086289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310369022.0A Active CN104201014B (en) | 2013-08-22 | 2013-08-22 | A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104201014B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628193A (en) * | 2021-12-21 | 2022-06-14 | 平高集团有限公司 | Contact assembly of arc extinguish chamber and manufacturing method of moving arc contact of arc extinguish chamber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN202711964U (en) * | 2012-05-14 | 2013-01-30 | 平高集团有限公司 | Electrical switch and moving contact used by same |
| FR2984591A1 (en) * | 2011-12-14 | 2013-06-21 | Alstom Technology Ltd | DEVICE FOR DRIVING A CONDUCTOR ASSEMBLY OF A DISCONNECT FOR MOVING THE VARIABLE SPEED ASSEMBLY |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000311535A (en) * | 1999-04-28 | 2000-11-07 | Toshiba Corp | Gas blast circuit breaker |
| JP5188176B2 (en) * | 2007-12-28 | 2013-04-24 | 三菱電機株式会社 | Ground switch |
-
2013
- 2013-08-22 CN CN201310369022.0A patent/CN104201014B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| FR2984591A1 (en) * | 2011-12-14 | 2013-06-21 | Alstom Technology Ltd | DEVICE FOR DRIVING A CONDUCTOR ASSEMBLY OF A DISCONNECT FOR MOVING THE VARIABLE SPEED ASSEMBLY |
| CN202711964U (en) * | 2012-05-14 | 2013-01-30 | 平高集团有限公司 | Electrical switch and moving contact used by same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104201014A (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103259240A (en) | Stress control body for plastic insulation high-voltage and direct-current cable connector | |
| US10243452B2 (en) | Electromagnetic shield for use in a power system | |
| CN106571262B (en) | A kind of disconnecting switch and its contact assembly | |
| CN104201014B (en) | A kind of moving contact and the rapid closing switch moved end assembly of this moving contact of use | |
| CN106653326B (en) | A kind of UHV converter transformer valve side lead system for partition wall insulation system | |
| CN206758217U (en) | A kind of core for transformer | |
| CN102426965A (en) | High voltage alternate current isolating switch and earthing switch combination | |
| CN104143462B (en) | A kind of HVDC rapid closing switch and switch fracture texture thereof | |
| CN205645662U (en) | Outdoor intelligent permanent magnet vacuum circuit breaker | |
| CN203013542U (en) | Conductive contact seat for high-current switch | |
| CN205385259U (en) | Take wall bushing of pressure -equalizing device | |
| CN205609432U (en) | Vacuum arc extinguishing chamber | |
| MY162386A (en) | An arcing chamber with high current-carrying capability for high-voltage switchgear | |
| CN203103210U (en) | Vacuum arc extinguishing chamber and vacuum circuit breaker using same | |
| CN206640192U (en) | A kind of oil immersed type ring main unit being used in geographical formula power equipment | |
| CN105931865B (en) | Switching device and its contact assembly and its static contact | |
| CN206258483U (en) | The converter switching device and testing equipment of a kind of electronic component detection equipment | |
| CN201146149Y (en) | 800 kV can-type hexafluoride sulphur circuit breaker | |
| CN201146148Y (en) | 550 kV can-type hexafluoride sulphur circuit breaker | |
| CN203983790U (en) | A kind of heat abstractor of solid-state insulated switchgear | |
| CN207458617U (en) | A kind of cable of low internal resistance | |
| CN204516666U (en) | A kind of Novel vacuum circuit breaker | |
| CN206194638U (en) | Explosion chamber for vacuum circuit breaker | |
| CN201781079U (en) | High-voltage connection conductor applied to high magnetic field | |
| CN207149468U (en) | A kind of solid insulation ring main unit switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |