CN105244221A - Vacuum arc-extinguishing chamber - Google Patents
Vacuum arc-extinguishing chamber Download PDFInfo
- Publication number
- CN105244221A CN105244221A CN201510606225.6A CN201510606225A CN105244221A CN 105244221 A CN105244221 A CN 105244221A CN 201510606225 A CN201510606225 A CN 201510606225A CN 105244221 A CN105244221 A CN 105244221A
- Authority
- CN
- China
- Prior art keywords
- insulator
- rear end
- vacuum interrupter
- quiet
- connection structure
- 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.)
- Pending
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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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention relates to a vacuum arc-extinguishing chamber, and the chamber comprises a ceramic sleeve, wherein the axis of the ceramic sleeve extends in a front/back direction. The interior of an inner hole of the rear end of the ceramic sleeve is provided with a static end conductive rod, and the static end conductive rod is fixedly provided with a static cover plate. The periphery of the static end conductive rod is provided with a shielding sleeve in a sleeving manner. There is a radial and/or axial annular gap between the static cover plate and the rear end of the ceramic sleeve. The rear end of the shielding sleeve is provided with an annular connection structure in an integrated and outwards-folded manner, wherein the annular connection structure is located in the annular gap. The rear end of the ceramic sleeve is fixedly provided with a metal connection structure, and the annular connection structure is in fixed welding connection with the metal connection structure and the static cover plate. The chamber provided by the invention is lower in manufacturing cost.
Description
Technical field
The present invention relates to a kind of vacuum interrupter.
Background technology
Existing vacuum interrupter " has the vacuum interrupter of three station shielding covers: comprise insulator, moving conductive rod and static conductive rod; the opposite end of dynamic and static conducting rod is respectively arranged with dynamic and static contact; the two ends of insulator are respectively arranged with quiet cover plate and dynamic cover plate; wherein quiet cover plate is fixedly connected with static conductive rod; static conductive rod is also fixedly connected with radome; radome comprises the shielding cylinder be coaxially set with static conductive rod and the tube end plate be fixedly connected with static conductive rod, tube end plate and shielding cylinder one drawing and forming disclosed in Chinese patent CN201773757U.Existing this vacuum interrupter Problems existing is: because shielding cylinder is relatively near insulator, therefore the radial dimension of tube end plate is larger, therefore tube end plate and shielding cylinder must adopt the technique of one drawing and forming to make, this technique adds the cost of manufacture of shielding cylinder on the one hand, on the other hand due to the restriction of technique, it is enough little that the diameter of shielding cylinder can not do, this just requires that insulator also should have larger radial dimension, be unfavorable for that the miniaturization of vacuum interrupter makes, thickness simultaneously due to the restriction shielding cylinder of technique is general all thinner, the structural strength of shielding cylinder is not high, the shielding cylinder of thinner thickness easily deforms after a long time use, affect Electric Field Distribution.
Summary of the invention
The object of the present invention is to provide the vacuum interrupter that a kind of cost of manufacture is lower.
In order to solve the problem, technical scheme of the present invention is:
A kind of vacuum interrupter, comprise the insulator that axis extends along the longitudinal direction, quiet end conducting rod is provided with in the rear end endoporus of insulator, quiet end conducting rod is installed with quiet cover plate, the outer race of quiet end conducting rod is provided with shielding cylinder, there is between quiet cover plate and described insulator rear end the annular gap of radial direction and/or axis, the external folding in rear end one of described shielding cylinder has the annular connection structure being arranged in described annular gap, described insulator rear end is installed with metal connecting structure, and described annular connection structure is welded with described metal connecting structure and quiet cover plate and is connected.
Described metal connecting structure comprises the metal connecting layer of plating and being located on described insulator.
Described shielding cylinder and annular connection structure are made up of oxygenless copper material.
That the barrel of described shielding cylinder is established evagination supports with the inner hole wall of described insulator the salient point coordinated.
Described annular connection structure comprises the overcoat that the inner sleeve that is wholely set with described shielding cylinder and coaxial line are sheathed on described inner sleeve periphery, the rear end of described inside and outside cover is connected by connecting plate, the inner peripheral surface of described inner sleeve welds with described quiet cover plate and is connected, described metal connecting structure is arranged on the rear end face of described insulator, and the front end face of described overcoat welds with described metal connecting structure and is connected.
Beneficial effect of the present invention is: the shielding cylinder in the present invention forms radome together with annular connection structure, adopt annular connection structure to be connected with insulator and quiet cover plate and realize fixing radome, and because shielding cylinder is relatively near insulator, so annular connection structure does not need to have larger radial dimension, just can make to be converted into annular adapter sleeve outside housing rear end by simple bending tool, the making of radome does not need to use stretch forming process, greatly reduces the cost of manufacture of radome and vacuum interrupter.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention;
Fig. 2 is the structural representation of dynamic and static contact blade in the present invention.
Embodiment
A kind of embodiment of vacuum interrupter is as shown in Figure 1 and 2: comprise the insulator 7 that axis extends along the longitudinal direction, quiet end conducting rod 9 is provided with in the rear end endoporus of insulator, moved end conducting rod 1 is provided with in the front end endoporus of insulator, moved end conducting rod guiding is installed in fairlead 2, guide cylinder is fixed on insulator by dynamic cover plate 4, moves and is connected with bellows 5 between cover plate and moving conductive rod.The outer race of quiet end conducting rod is provided with radome, radial and axial annular gap 17 is provided with between quiet cover plate and the rear end of insulator, radome comprises shielding cylinder 11 and the annular connection structure by bending outside shielding cylinder rear end, annular connection structure is notch U-shaped forward at the cross sectional shape perpendicular to its circumference, annular connection structure comprises the overcoat 14 that the inner sleeve 16 that is wholely set with shielding cylinder and coaxial line are sheathed on described inner sleeve periphery, inner sleeve, the rear end of overcoat is connected by connecting plate 15, on the rear end face of insulator, plating is provided with metal connecting layer, the inner peripheral surface of inner sleeve welds with quiet cover plate and is connected, the front end face of overcoat welds with metal connecting layer and is connected.That the barrel of shielding cylinder is established evagination supports with the inner hole wall of insulator the support coordinated, and support in the present embodiment and be made up of salient point 13, salient point 13 has at least three, and each salient point is evenly arranged around the circumference of shielding cylinder.The abutting end of dynamic and static conducting rod is respectively arranged with moving contact sheet 8 and fixed contact sheet 12, dynamic and static contact blade all offers four helicla flutes 20, dynamic and static contact blade is made by chromiumcopper material, dynamic and static conducting rod and radome are made by oxygenless copper material, and dynamic and static cover plate is made up of stainless steel material.
Radome in the present invention is fixed between insulator and quiet cover plate, annular adapter sleeve is made not need larger radial dimension, annular connection structure can be formed by simple bending technique, that is radome can be no longer made by stretch forming process, and this greatly reduces the cost of manufacture of radome on the one hand; On the other hand, shielding cylinder also can have thicker thickness, thus ensures the structural strength of shielding cylinder, and the diameter being exactly shielding cylinder in addition is no longer subject to drawing process restriction, the radial dimension of vacuum interrupter can be accomplished little as much as possible.Salient point not only further adds the structural strength of shielding cylinder, and coordinate because salient point supports with the inner hole wall of insulator, under the supporting role of salient point, shielding cylinder is not yielding, thus ensure that Electric Field Distribution simultaneously.
In other embodiments of the invention: metal connecting layer also can be plated and is located on the outer peripheral face of insulator, and now the inner peripheral surface of overcoat welds with metal connecting layer and is connected; Annular gap also can be only be arranged on quiet cover plate and insulator rear end axial direction between, now can weld to be connected with quiet cover plate by the connecting plate of annular connection structure and realize radome being fixed on quiet cover plate; Annular gap can also be only be arranged between the radial direction between quiet cover plate and insulator rear end, and now metal connecting layer can also be plated and is located on the inner peripheral surface of insulator, and the outer peripheral face of overcoat welds with metal connecting layer and is connected; Other metal connecting structure that certain metal connecting layer also can be fixedly arranged on insulator replaces, such as is bonded and fixed to the metallic sheath on insulator; Annular connection structure can also be L shape perpendicular to the cross sectional shape in its circumference, now annular connection structure comprises the adapter sleeve be wholely set with shielding cylinder and the flanged plate that turns up integrally be connected on adapter sleeve, can be welded to connect be fixed on insulator by radome by the metal connecting layer of turning up on flanged plate and insulator rear end face; Salient point can not also be established; Radome can also adopt other metal material to make; Salient point also can be replaced by other supporting constructions such as annular brace muscle; Spiral fluted number on dynamic and static contact blade can also be three, five, six, seven or other number.
Claims (8)
1. a vacuum interrupter, comprise the insulator that axis extends along the longitudinal direction, quiet end conducting rod is provided with in the rear end endoporus of insulator, quiet end conducting rod is installed with quiet cover plate, the outer race of quiet end conducting rod is provided with shielding cylinder, it is characterized in that: the annular gap between quiet cover plate and described insulator rear end with radial direction and/or axis, the external folding in rear end one of described shielding cylinder has the annular connection structure being arranged in described annular gap, described insulator rear end is installed with metal connecting structure, and described annular connection structure is welded with described metal connecting structure and quiet cover plate and is connected.
2. vacuum interrupter according to claim 1, is characterized in that: described metal connecting structure comprises the metal connecting layer of plating and being located on described insulator.
3. vacuum interrupter according to claim 1, is characterized in that: described shielding cylinder and annular connection structure are made up of oxygenless copper material.
4. vacuum interrupter according to claim 1, is characterized in that: that the barrel of described shielding cylinder is established evagination supports with the inner hole wall of described insulator the support coordinated.
5. vacuum interrupter according to claim 1, is characterized in that described quiet end conducting rod is provided with fixed contact sheet, mirror contact offers helical groove structure.
6. vacuum interrupter according to claim 5, is characterized in that: described fixed contact sheet is welded on described quiet end conducting rod.
7. vacuum interrupter according to claim 5, is characterized in that: described spiral fluted number is 3 ~ 6.
8. the vacuum interrupter according to claim 1 ~ 7 any one, it is characterized in that: described annular connection structure comprises the overcoat that the inner sleeve that is wholely set with described shielding cylinder and coaxial line are sheathed on described inner sleeve periphery, the rear end of described inside and outside cover is connected by connecting plate, the inner peripheral surface of described inner sleeve welds with described quiet cover plate and is connected, described metal connecting structure is arranged on the rear end face of described insulator, and the front end face of described overcoat welds with described metal connecting structure and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606225.6A CN105244221A (en) | 2015-09-22 | 2015-09-22 | Vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606225.6A CN105244221A (en) | 2015-09-22 | 2015-09-22 | Vacuum arc-extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105244221A true CN105244221A (en) | 2016-01-13 |
Family
ID=55041822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510606225.6A Pending CN105244221A (en) | 2015-09-22 | 2015-09-22 | Vacuum arc-extinguishing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105244221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762009A (en) * | 2016-04-08 | 2016-07-13 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and manufacture method therefor |
| CN111725728A (en) * | 2020-05-19 | 2020-09-29 | 平高集团有限公司 | Gas insulated switchgear and cartridge assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004362918A (en) * | 2003-06-04 | 2004-12-24 | Mitsubishi Electric Corp | Vacuum valve |
| JP2013048034A (en) * | 2011-08-29 | 2013-03-07 | Mitsubishi Electric Corp | Vacuum valve |
| CN204348598U (en) * | 2014-12-12 | 2015-05-20 | 天津平高智能电气有限公司 | A kind of vacuum interrupter and use the vacuum circuit-breaker of this vacuum interrupter |
| CN104715962A (en) * | 2015-03-13 | 2015-06-17 | 天津平高智能电气有限公司 | Vacuum arc extinguish chamber and cylinder thereof |
| CN104766757A (en) * | 2015-03-06 | 2015-07-08 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and static end assembly thereof |
| CN205050768U (en) * | 2015-09-22 | 2016-02-24 | 天津平高智能电气有限公司 | Vacuum arc extinguishing chamber |
-
2015
- 2015-09-22 CN CN201510606225.6A patent/CN105244221A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004362918A (en) * | 2003-06-04 | 2004-12-24 | Mitsubishi Electric Corp | Vacuum valve |
| JP2013048034A (en) * | 2011-08-29 | 2013-03-07 | Mitsubishi Electric Corp | Vacuum valve |
| CN204348598U (en) * | 2014-12-12 | 2015-05-20 | 天津平高智能电气有限公司 | A kind of vacuum interrupter and use the vacuum circuit-breaker of this vacuum interrupter |
| CN104766757A (en) * | 2015-03-06 | 2015-07-08 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and static end assembly thereof |
| CN104715962A (en) * | 2015-03-13 | 2015-06-17 | 天津平高智能电气有限公司 | Vacuum arc extinguish chamber and cylinder thereof |
| CN205050768U (en) * | 2015-09-22 | 2016-02-24 | 天津平高智能电气有限公司 | Vacuum arc extinguishing chamber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762009A (en) * | 2016-04-08 | 2016-07-13 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber and manufacture method therefor |
| CN111725728A (en) * | 2020-05-19 | 2020-09-29 | 平高集团有限公司 | Gas insulated switchgear and cartridge assembly |
| CN111725728B (en) * | 2020-05-19 | 2022-06-14 | 平高集团有限公司 | Gas insulated switchgear and cartridge assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |