CN104332351A - Soft connection device and embedded pole using the same - Google Patents
Soft connection device and embedded pole using the same Download PDFInfo
- Publication number
- CN104332351A CN104332351A CN201410310107.6A CN201410310107A CN104332351A CN 104332351 A CN104332351 A CN 104332351A CN 201410310107 A CN201410310107 A CN 201410310107A CN 104332351 A CN104332351 A CN 104332351A
- Authority
- CN
- China
- Prior art keywords
- connection device
- flexible coupling
- soft connection
- pars intermedia
- pole
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
- H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements
Abstract
The invention relates to an embedded pole type circuit breaker, and particularly to a soft connection device and an embedded pole using the soft connection device. The soft connection device comprises a soft connection which is provided with a middle part which is used for fixed cooperation with an adapter conductor, and more than two wing parts which are arranged at the edge of the middle part and are used for fixedly cooperating with a lower wire outlet terminal. The soft connection device has advantages of high flowing capability and high heat radiation effect. The soft connection device is suitable for large-current embedded poles and can satisfy requirements for current flow and temperature increase of the large-current embedded pole.
Description
Technical field
The present invention relates to pole type circuit breaker, particularly soft connection device and use the pole of this device.
Background technology
In recent years, the main flow direction intelligent, miniaturized, the long-life becomes switchgear development gradually, pole type vacuum circuit breaker replaces open type vacuum interrupter gradually or the vacuum circuit-breaker of arc control device by insulation barrel cover, becomes a kind of trend of switchgear.Pole type vacuum circuit breaker is that the part such as vacuum interrupter and conducting terminal epoxy resin is encapsulated as pole by APG technique, then circuit breaker is assembled into mechanism, this structure not only decreases assembling link, improve Mechanical Reliability, improve arc control device withstand voltage level, prevent vacuum interrupter affected by extraneous filth, condensation and mechanical force etc., create condition for circuit breaker is non-maintaining.
Pole comprises upper and lower outlet terminal and vacuum interrupter, and lower wire end and the moving conductive rod of vacuum interrupter, by be flexible coupling or wiping connected mode is connected, form main conductive circuit with this.Along with the progress of science and technology, and the needs of China's power construction, the raising of circuit breaker current grade is imperative.Along with the raising of current class, just require the through-current capability in the primary conductive loop of pole type vacuum circuit breaker, thermal diffusivity promotes further, improves, the internal structure of vacuum interrupter and pole is had higher requirement simultaneously.
Existing small area analysis pole, the connection of the moving conductive rod of lower wire end and vacuum interrupter is realized by being flexible coupling, be flexible coupling between the upper surface and the lower surface of moving conductive rod of lower wire end, end face connected mode is adopted between lower wire end and the moving conductive rod of vacuum interrupter, this kind of mode structure is simple, simple installation, cost are low, but be flexible coupling with moving conductive rod, be flexible coupling little with the contact area of lower wire end, there is the low problem of through-current capability in what be flexible coupling, thus, this connected mode is not suitable for great-current fixed sealed pole.
Existing great-current fixed sealed pole, owing to being subject to the restriction such as moving conductive rod of vacuum arc extinguish chamber end face diameter and electrical conductor heat radiation, many employings wiping connected mode, although this kind of mode solves the through-flow problem of great-current fixed sealed pole, but its complex structure, assembling process is loaded down with trivial details, and cost is higher and cause radiating effect not good due to close structure.Therefore, do not have in prior art that negotiability is high, the simple and pole of excellent in heat dissipation effect of structure.
Summary of the invention
The object of the present invention is to provide the soft connection device that a kind of through-current capability is high.Present invention also offers a kind of pole using above-mentioned soft connection device.
To achieve these goals, soft connection device of the present invention adopts following technical scheme: soft connection device, comprise and being flexible coupling, be flexible coupling and have for the pars intermedia of switching conductor secure fit be located at the plural for the alar part with the sub-secure fit of lower wire end of pars intermedia edge.
Described pars intermedia is provided with for connecting hole.
Soft connection device also comprises the switching conductor for electric current to be forwarded to the pars intermedia be flexible coupling from the moving conductive rod of vacuum interrupter.
Described switching conductor is conductive sleeve.
To achieve these goals, pole of the present invention adopts following technical scheme: pole, comprise and being flexible coupling and lower wire end, be flexible coupling have for the pars intermedia of switching conductor secure fit and the alar part being located at the plural of pars intermedia edge and the sub-secure fit of lower wire end.
Described pars intermedia is provided with connecting hole.
Pole also comprises the switching conductor for electric current to be forwarded to the pars intermedia be flexible coupling from the moving conductive rod of vacuum interrupter.
Described switching conductor is conductive sleeve.
Pole also comprises the fixed connecting rod for being fixedly connected with moving conductive rod, fixed connecting rod and connecting hole threaded engagement.
The alar part be flexible coupling and lower wire end are bolted to connection.
Beneficial effect of the present invention: adopt this soft connection device, the pars intermedia be flexible coupling is connected with the moving conductive rod of vacuum interrupter by switching conductor, the moving conductive rod contact area be flexible coupling with vacuum interrupter can be made to increase, through-current capability strengthens, and electric current is passed to lower wire end by plural alar part, electrical conductor is generated heat few, in addition the relatively existing increase that is slidably connected in space, junction, area of dissipation is large, effectively can reduce temperature rise, this soft connection device is applicable to the pole of big current, the through-flow of great-current fixed sealed pole and temperature increase requirement can be met.In addition, adopt this soft connection device, the structure of pole can be simplified, be conducive to installing, can to enhance productivity and can be cost-saving.
Further, fixed connecting rod, through the interstitial hole be flexible coupling, closely can be fixedly connected with being flexible coupling with moving conductive rod.
Further, the alar part be flexible coupling is fixedly connected with mode with bolts with lower wire end, this syndeton is simple and fixed, when the moving conductive rod that can ensure to guarantee to be flexible coupling with vacuum interrupter moves up and down and lower wire end combines tight, through-current capability can not reduce because of loose contact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of pole of the present invention;
Fig. 2 is the structural representation be flexible coupling in Fig. 1;
Fig. 3 is the structural representation of lower wire end in Fig. 1.
Embodiment
The embodiment 1 of pole of the present invention, as Figure 1-3: pole comprises soft connection device, lower wire end 1 and vacuum interrupter 2.Vacuum interrupter 2 and lower wire end 1 are by epoxy resin 3 sealing.
Vacuum interrupter 3 comprises moving conductive rod 21, downward-extension on moving conductive rod 21, and the periphery of moving conductive rod 21 bottom has up big and down small cone structure, and the lower surface of moving conductive rod 21 is provided with threaded connection hole.
Soft connection device comprises be flexible coupling 4 and switching conductor 5.Be flexible coupling 4 have for the pars intermedia 41 of switching conductor secure fit and be located at four of pars intermedia 41 edge for the alar part 42 with the sub-secure fit of lower wire end.Be flexible coupling 4 in crossing distribution.The 4 promising multilayer copper foil pressure weldings that are flexible coupling are made.Pars intermedia 41 is provided with connecting hole 411, and this connecting hole 411 is positioned at the center of pars intermedia 41, and in other embodiments, can also be positioned at other position of pars intermedia, this connecting hole 411 is corresponding with the threaded connection hole of moving conductive rod.Alar part 42 is provided with the first bolt hole 421, and on each alar part 42, the number of the first bolt hole 421 is two, in other embodiments, can also be more than one or three.Pars intermedia 41 is provided with the second bolt hole 412, second bolt hole 412 four, and the cross section of pars intermedia 41 is square, and four the second bolts hole 412 are distributed in four angles place of pars intermedia 41.
Switching conductor effect be by electric current from the moving conductive rod 21 of vacuum interrupter be forwarded to be flexible coupling 4 pars intermedia 41.Switching conductor 5 is conductive sleeve, conductive sleeve is cuboid, the upper surface of conductive sleeve offers the axle sleeve for coordinating with moving conductive rod inserting, this axle sleeve is up big and down small pyramidal structure, it is cone match between axle sleeve and moving conductive rod, the lower surface of conductive sleeve is provided with the through hole corresponding with connecting hole, this through hole is positioned at the center position of conductive sleeve lower surface, the lower surface of conductive sleeve is square, the lower surface of conductive sleeve also offers the first screwed hole, first screwed hole and the second bolt hole 412 one_to_one corresponding, this first screwed hole is located at four angles place of lower surface, in other embodiments, first screwed hole and the second bolt hole can also be two or three or more than five.
Lower wire end 1 comprises the cylinder with hollow structure 12 of downward-extension, upper surface and the vacuum interrupter 2 of lower wire end 1 are combined closely, lower surface is provided with the second screwed hole 11, second screwed hole 11 and the first bolt hole 421 one_to_one corresponding, second screwed hole 11 has eight, and upper and lower, left and right four direction has two the second screwed holes respectively.
Conductive sleeve is all connected by bolt assembly 6 with lower wire end with pars intermedia, alar part, and bolt assembly 6 comprises soket head cap screw, spring washer and plain washer.
Pole also comprises the fixed connecting rod 7 for being fixedly connected with moving conductive rod, and fixed connecting rod 7 coordinates with the connecting hole 411 of the threaded connection hole on the lower surface of moving conductive rod 21, pars intermedia, the through hole of conductive sleeve.On fixed connecting rod 7 in be flexible coupling 4 fit beneath have big spring packing ring 8, big flat washer circle 9 and for fastening be flexible coupling 4 with the nut of moving conductive rod 21.
When assembling, first the first screwed hole on the lower surface of the second bolt hole on pars intermedia and conductive sleeve being aimed at, then adopting four groups of bolt assemblies to be fixedly connected with conductive sleeve by pars intermedia, and form soft connection component; Then the below of soft connection component from lower wire end is inserted the hollow structure of lower wire end, and the first bolt hole of alar part is aimed at the second screwed hole of lower wire end, then by eight bolt assemblies, alar part is fixedly connected with lower wire end; Then the moving conductive rod of vacuum interrupter is plugged in the axle sleeve of conductive sleeve, then the threaded connection hole will screwed in after the through hole of fixed connecting rod through big spring packing ring, big flat washer circle, the connecting hole of pars intermedia, conductive sleeve on moving conductive rod, can make soft connection device and moving conductive rod be fastenedly connected.
Because conductive sleeve is all connected by bolt assembly with lower wire end with pars intermedia, alar part, be combined closely with lower wire end and conductive sleeve when the moving conductive rod can guaranteeing to be flexible coupling with vacuum interrupter moves up and down, through-current capability can not reduce because of loose contact.Due to the switching effect of conductive sleeve, can make to be flexible coupling and to increase with moving conductive rod contact area, galvanization ability strengthens, and electric current flows into lower wire end by four the branch's dispersions be flexible coupling, and electrical conductor is generated heat few, adopt this kind of soft connection device, can simplified structure, space between lower wire end and vacuum interrupter is strengthened, and area of dissipation is large, effectively temperature rise be can reduce, through-flow, the temperature increase requirement that meet great-current fixed sealed pole guaranteed.After designs simplification, be not only beneficial to installation, enhance productivity, and can be cost-saving.Meanwhile, be flexible coupling employing decussate texture, makes moving conductive rod of vacuum arc extinguish chamber uniform force when switching reciprocating motion, increases the stability of a system.
In other embodiments, the alar part be flexible coupling can also be two or three or more than five.
In other embodiments, the mating surface of conductive sleeve and conducting rod can not also be cone structure, also can be cylindrical structure.
In other embodiments, conductive sleeve and the pars intermedia be flexible coupling can also adopt other fixed form, and as welding or riveted joint, both fit.
In other embodiments, to be flexible coupling and connected mode between lower wire end can also adopt other usual manner, as welding or riveted joint.
In other embodiments, the connecting hole on the pars intermedia be flexible coupling can also be saved; Also fixed connecting rod can be saved.
In other embodiments, switching conductor can also be barrel-like structure or block structure or chondritic, as long as conductor of transferring offers the inserting hole coordinated with moving conductive rod inserting.
The embodiment of soft connection device of the present invention, the embodiment of this soft connection device is identical with the structure of the soft connection device in the embodiment of the pole of the invention described above, and at this, it is no longer repeated.
Claims (10)
1. soft connection device, comprises and being flexible coupling, and it is characterized in that: be flexible coupling and have for the pars intermedia of switching conductor secure fit be located at the plural for the alar part with the sub-secure fit of lower wire end of pars intermedia edge.
2. soft connection device according to claim 1, is characterized in that: described pars intermedia is provided with for connecting hole.
3. soft connection device according to claim 1 and 2, is characterized in that: also comprise the switching conductor for electric current to be forwarded to the pars intermedia be flexible coupling from the moving conductive rod of vacuum interrupter.
4. soft connection device according to claim 3, is characterized in that: described switching conductor is conductive sleeve.
5. pole, comprises and being flexible coupling and lower wire end, it is characterized in that: be flexible coupling have for the pars intermedia of switching conductor secure fit and the alar part being located at the plural of pars intermedia edge and the sub-secure fit of lower wire end.
6. pole according to claim 5, is characterized in that: described pars intermedia is provided with connecting hole.
7. the pole according to claim 5 or 6, is characterized in that: also comprise the switching conductor for electric current to be forwarded to the pars intermedia be flexible coupling from the moving conductive rod of vacuum interrupter.
8. pole according to claim 7, is characterized in that: described switching conductor is conductive sleeve.
9. pole according to claim 6, is characterized in that: also comprise the fixed connecting rod for being fixedly connected with moving conductive rod, fixed connecting rod and connecting hole threaded engagement.
10. pole according to claim 5, is characterized in that: the alar part be flexible coupling and lower wire end are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310107.6A CN104332351B (en) | 2014-06-30 | 2014-06-30 | Soft connection device and embedded pole using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310107.6A CN104332351B (en) | 2014-06-30 | 2014-06-30 | Soft connection device and embedded pole using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104332351A true CN104332351A (en) | 2015-02-04 |
| CN104332351B CN104332351B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410310107.6A Active CN104332351B (en) | 2014-06-30 | 2014-06-30 | Soft connection device and embedded pole using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332351B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762006A (en) * | 2016-03-25 | 2016-07-13 | 天津平高智能电气有限公司 | Heavy-current solid-sealed polar pole for gas-insulated switchgear |
| CN106653463A (en) * | 2016-12-26 | 2017-05-10 | 天津平高智能电气有限公司 | Fixation and encapsulation pole rod with built-in radiator |
| CN106847604A (en) * | 2017-03-15 | 2017-06-13 | 天津平高智能电气有限公司 | Moved end wire outlet seat and the pole using the moved end wire outlet seat |
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| CN201936801U (en) * | 2010-12-28 | 2011-08-17 | 成都旭光电子股份有限公司 | Large-current solid-sealed polar pole |
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| CN102737902A (en) * | 2011-04-06 | 2012-10-17 | 中国北车集团大同电力机车有限责任公司 | Vacuum circuit breaker and electric locomotive |
| CN202564069U (en) * | 2012-05-15 | 2012-11-28 | 司正生 | Cross current connecting device |
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| CN201327789Y (en) * | 2008-12-04 | 2009-10-14 | 天水长城开关厂有限公司 | Sealing main circuit for circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762006A (en) * | 2016-03-25 | 2016-07-13 | 天津平高智能电气有限公司 | Heavy-current solid-sealed polar pole for gas-insulated switchgear |
| CN105762006B (en) * | 2016-03-25 | 2018-08-31 | 天津平高智能电气有限公司 | A kind of great-current fixed sealed pole of gas-filling cabinet |
| CN106653463A (en) * | 2016-12-26 | 2017-05-10 | 天津平高智能电气有限公司 | Fixation and encapsulation pole rod with built-in radiator |
| CN106653463B (en) * | 2016-12-26 | 2018-11-09 | 天津平高智能电气有限公司 | A kind of pole of built-in radiator |
| CN109216102A (en) * | 2016-12-26 | 2019-01-15 | 天津平高智能电气有限公司 | A kind of pole of built-in radiator |
| CN109449041A (en) * | 2016-12-26 | 2019-03-08 | 天津平高智能电气有限公司 | A kind of pole of built-in radiator |
| CN109216102B (en) * | 2016-12-26 | 2020-02-21 | 天津平高智能电气有限公司 | Embedded pole of built-in radiator |
| CN109449041B (en) * | 2016-12-26 | 2020-02-21 | 天津平高智能电气有限公司 | Embedded pole of built-in radiator |
| CN106847604A (en) * | 2017-03-15 | 2017-06-13 | 天津平高智能电气有限公司 | Moved end wire outlet seat and the pole using the moved end wire outlet seat |
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| CN104332351B (en) | 2017-05-24 |
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