CN102420072B - Three-phase co-chamber vacuum extinction chamber - Google Patents
Three-phase co-chamber vacuum extinction chamber Download PDFInfo
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- CN102420072B CN102420072B CN201110233413.0A CN201110233413A CN102420072B CN 102420072 B CN102420072 B CN 102420072B CN 201110233413 A CN201110233413 A CN 201110233413A CN 102420072 B CN102420072 B CN 102420072B
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- insulation crust
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Abstract
The invention relates to a three-phase co-chamber vacuum extinction chamber; the three-phase co-chamber vacuum extinction chamber comprises three pairs of movable and stationary contact components which correspond to each other and are distributed in an insulation shell at intervals; the three-phase co-chamber vacuum extinction chamber is characterized in that conducting rods in each pair of movable and stationary contact component comprise two stationary conducting rods and a movable conducting rod, wherein the two stationary conducting rods are respectively exposed and are fixed at two ends of the insulation shell, and the movable conducting rod is arranged in a vacuum inner cavity; one of the two stationary conducting rods is connected with a stationary contact; the other one stationary conducting rod is connected with one end of the movable conducting rod through a soft conductor; the other end of the movable conducting rod is connected with a movable contact; and a driving part, which can drive the movable conducting rod in each pair of movable and stationary contact components to synchronously move along the axial direction of the movable conducting rod, is also arranged in the insulation shell. The three-phase co-chamber vacuum extinction chamber adopts a three-phase co-chamber structure, has the advantages of compact structure, lower volume and lower cost and is more suitable for a miniature intelligent power grid; and the three-phase co-chamber vacuum extinction chamber is novel in structure and can better realize the disconnecting synchronism among three phases.
Description
Technical field
The present invention relates to a kind of power switch, specifically refer to a kind of vacuum interrupter of the three-phase coenosarc be applied in the power switch such as vacuum circuit-breaker and vacuum load switch.
Background technology
Vacuum interrupter is the core component of middle high-pressure electric power switch, is widely used in the power transmission and distribution control system of electric power.Its operation principle is, relies on the dynamic and static contact sealed in a vacuum chamber to realize the on-off function of power circuit, and once cut off circuit power, vacuum interrupter blow-out also can suppress electric current rapidly, avoids getting an electric shock or other contingencies generation.Be applied to the power switch in three-phase commercial power field, often be equipped with three-phase vacuum interrupter, existing three-phase vacuum interrupter is assembled by three single-phase independently vacuum interrupters mostly, volume is relatively large, overall structure is compact not, and three alternate synchronism of cut-offfing poor, this not only can affect its useful life, but also has a negative impact to the stability of electric power system.
Larger for existing this three-phase vacuum interrupter volume, three alternately cut-off the poor defect of synchronism, the vacuum interrupter that people just design a kind of three-phase coenosarc comes, as the patent No. Chinese utility model patent " three-phase rotation double-break vacuum arc extinguishing chamber " that is ZL201020653072.3 (Authorization Notice No. CN201886961U) discloses a kind of vacuum interrupter of three-phase coenosarc, it includes a shaft insulation, one end of this shaft insulation is connected with external power supply, the other end puts in three-phase disc type rotation double-break vacuum arc extinguishing chamber and is connected with the insulating disc of outer rim with three conductor connecting rods, the two ends of each conductor connecting rod are provided with moving contact, fixed contact is fixed on the internal perisporium of arc control device, two moving contacts on a conductor connecting rod end face and two fixed contacts be fixed on the internal perisporium of arc control device form a phase double-fracture structure, three groups are moved, fixed contact forms three-phase double-fracture structure.During work, drive shaft insulation to rotate by external drive motors or rotating machinery, shaft insulation drives the moving contact on insulating disc and conductor connecting rod to rotate, thus makes three groups of dynamic and static contacts realize effectively synchronous deciliter, completes the interrupting process of three-phase line.Compared to existing modular three-phase vacuum interrupter, this three-phase rotation double-break vacuum arc extinguishing chamber adopts three-phase to coexist the structure of a Room, overall structure is comparatively compact, small volume, cost is lower, and three alternate synchronous switching offs can be realized by the shaft insulation of revolving outer, not only three-phase conjoined operation is simple, and synchronism is better.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, provides a kind of novel structure and possesses the vacuum interrupter of the lower and good three-phase coenosarc of three-phase synchronous of small volume, cost equally.
The present invention solves the problems of the technologies described above adopted technical scheme: the vacuum interrupter of this three-phase coenosarc, comprise the insulation crust with vacuum lumen and mutually corresponding and three couple in insulation crust spaced apart moves, static contact component, above-mentioned dynamic, moving in static contact component, fixed contact is arranged in described vacuum lumen, dynamic, conducting rod part in static contact component is exposed to described insulation crust, it is characterized in that: each to described dynamic, conducting rod in static contact component comprises two to be exposed respectively and is fixed on the moving conductive rod that the static conductive rod at insulation crust two ends and are positioned at vacuum lumen, a wherein static conductive rod in this two static conductive rod is connected with described fixed contact, another static conductive rod in described two static conductive rods is connected with one end of described moving conductive rod by a flexible conductor, the moving contact described in other end connection of this moving conductive rod, also be provided with in described insulation crust can drive each to described dynamic, moving conductive rod in static contact component axially carries out synchronization-moving actuator along it.
As a preferred version, described actuator comprises the action bars that the axial centre place that is positioned at insulation crust can move axially, the outer end of this action bars is supported on the support outside insulation crust, and the inner of this action bars is connected with each described moving conductive rod by connecting rod more respectively through after a seal.Like this, three-phase conjoined operation can be realized by moving axially action bars, not only simple to operate, and cut-off synchronism preferably three alternate can realizations.
To the further improvement of above-mentioned preferred version, described seal is a bellows, and this bellows is near the distance left between one end and connecting rod of connecting rod for connecting rod movement.After adopting bellows, the air-tightness of vacuum interrupter can be made to be able to further raising.
As another preferred version, described actuator comprises the axial centre place being positioned at insulation crust and the motion bar be connected with each described moving conductive rod by connecting rod, and this motion bar moves axially under an outer end is exposed to the driving of the rotating shaft outside insulation crust.Like this, three-phase conjoined operation can be realized by rotating shaft, motion bar is driven axially to move around during axis of rotation, motion bar carries out axial synchronizing moving by driving each moving conductive rod after connecting rod, and then make each to dynamic and static contact locking phase contact or disconnection, not only simple to operate, and cut-off synchronism preferably three alternate can realizations.
To the further improvement of above-mentioned preferred version, described motion bar one end is plugged in the first guide holder in insulation crust, the other end has a pivot pin, the inner of described rotating shaft is provided with rotary body, this rotary body has the radial slot inserted for described pivot pin, and the outer end of described rotating shaft is exposed to outside insulation crust through after the second guide holder in insulation crust.After adopting such structure, axis of rotation rotates with driven rotary body, drives motion bar to move axially, and finally realize three-phase conjoined operation after rotary body rotates.Certainly, under the requirement meeting make-and-break time, described rotating shaft also can adopt axial arranged screw structure, this screw mandrel has been threaded a nut, motion bar and nut fix, and by rotary screw, nut and motion bar are moved axially, obviously, such scheme can realize the conjoined operation of three-phase equally.
Preferred as above-mentioned either a program, described insulation crust comprises the housing of a cylindrical shape and is separately fixed at first, second cover plate at housing two ends, the dynamic and static contact assembly of described three couple is uniformly distributed at the inner circumferential interval of described housing, and respectively exposes respectively two static conductive rods in dynamic and static contact assembly and be fixed on first, second above-mentioned cover plate.Like this, insulation crust is made up of housing and first, second cover plate, makes installation and removal all more for convenience, and respectively organizes dynamic and static contact assembly uniformly at intervals in housing, make the integral structure layout of vacuum interrupter more reasonable.
For improving the insulation degree of vacuum interrupter further, be provided with each shielding cylinder described dynamic and static contact being located at respectively to its inside in described insulation crust.Be located in respective shielding cylinder by each to dynamic and static contact, also can reduce each to the interference each other of dynamic and static contact, use safer, reliable.
For improving the creepage distance between each adjacent static conductive rod, outside described insulation crust, be provided with the insulating barrier separated by adjacent static conductive rod.By arranging insulating barrier, on the basis ensureing safety in utilization, the spacing between each adjacent static conductive rod can be reduced, thus reduce the volume of vacuum interrupter, reduce manufacturing cost.
Compared with prior art, because of the present invention three are distributed in insulation crust to dynamic and static contact assembly, i.e. three vacuum lumen dynamic and static contact being positioned to same insulation crust, and move axially by means of moving conductive rod cut-off mode, make structure of the present invention more compact, volume is less, and manufacturing cost is lower, is more suitable for being applied in miniaturized intelligent electrical network.In addition, insulation shell two ends are exposed at outside static conductive rod of the present invention, moving conductive rod is located at vacuum lumen inside, and one end of each moving conductive rod is connected to one end of corresponding static conductive rod by flexible conductor, be provided with in insulation crust and can carry out synchronous driving to make each actuator dynamic and static contact being realized to synchronous disconnection or contact to each moving conductive rod, its overall structure visible is comparatively novel, and can realize three preferably and alternate cut-off synchronism.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the present invention two;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is that the A of Fig. 3 is to partial structurtes schematic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one: as depicted in figs. 1 and 2, the insulation crust of the vacuum interrupter of this three-phase coenosarc comprises cylindric housing 1 and is arranged on first cover plate 2 and second cover plate 3 at housing about 1 two ends respectively, forms vacuum lumen in insulation crust inside.Three pairs of dynamic and static contact assemblies are uniformly distributed at the inner circumferential interval of housing 1, and Fig. 1 broken section shows the structure of wherein a pair dynamic and static contact assembly.From this broken section, a pair dynamic and static contact assembly comprises a pair dynamic and static contact, two static conductive rods, 7, moving conductive rod 6 and a flexible conductor 8, wherein two static conductive rod 7 outer ends are exposed respectively and are fixed on the first cover plate 2 and the second cover plate 3, and the inner is connected with fixed contact 5 and flexible conductor 8 respectively.Flexible conductor 8 is " U " type conductor laterally placed, and on it, side arm is connected with the inner of the static conductive rod 7 be fixed on the first cover plate 3, and lower wall is connected with the upper end of moving conductive rod 6, and the lower end of moving conductive rod 6 is connected with moving contact 4.In addition, for improving the insulation degree of vacuum interrupter and reducing each to the interference each other of dynamic and static contact, each respective shielding cylinder 9 is positioned to dynamic and static contact.Like this, adopt three-phase coexist a Room structure after, the overall structure of this vacuum interrupter is comparatively compact, small volume, cost is lower, and can be widely used in, in vacuum circuit-breaker that in electric power system, three-phase cut-offs together or on-load switch, is especially worth applying in the intelligent grid of miniaturization.
In the present embodiment, in insulation crust, be also provided with one three can be driven axially namely to carry out synchronization-moving actuator up and down to the moving conductive rod of three in dynamic and static contact assembly 6 along it.Particularly, this actuator comprises the action bars 11 being positioned at housing 1 axial centre place and can moving up and down, the upper end of this action bars 11 is supported on the support 12 outside the first cover plate 2, and the lower end of this action bars 11 is connected with each moving conductive rod 6 by each connecting rod 13 more respectively through after bellows 10.Its concrete three-phase conjoined operation process is: driven on action bars 11 by drive motors or other drive sources in outside and move, so drive each connecting rod 13 and each moving conductive rod 6 synchronous on move, finally make respectively synchronously to disconnect dynamic and static contact; And action bars 11 moves down, and then drive each connecting rod 13 and each moving conductive rod 6 synchronously to move down, finally make each to dynamic and static contact locking phase contact.It is visible that it is not only simple to operate, and three alternate also have cut-off synchronism preferably.
Embodiment two: as shown in Figures 3 to 5, the structure of often pair of dynamic and static contact assembly of the present embodiment is identical with embodiment one, and the structure of actuator is then distinguished to some extent.Particularly, the actuator of the present embodiment comprises the motion bar 14 that the axial centre place that is positioned at housing 1 inside can move up and down, the upper end of this motion bar 14 is plugged in the first guide holder 16 be fixed on the first cover plate 2 lower surface, the lower end of motion bar 14 has a pivot pin 141, the sidepiece of motion bar 14 is connected with each moving conductive rod 6 respectively by each connecting rod 13, rotating shaft 15 radial direction is arranged on the sidewall of housing 1, the inner of rotating shaft 15 is provided with rotary body 18, rotary body 18 has the radial slot 181 inserted for above-mentioned pivot pin 141, the outer end of rotating shaft 15 stretches out in outside housing 1 through after the second guide holder 17 be fixed on housing 1 medial surface.Its concrete three-phase conjoined operation process is: rotated by drive motors or other rotating machinery drive shafts 15 in outside, when rotating shaft 15 is rotated, driven rotary body 18 rotates, and then drive motion bar 14 to move up and down, and motion bar 14 drives each moving conductive rod 6 synchronously to move up and down by each connecting rod 13, finally realize each synchronous disconnection to dynamic and static contact or contact.It is visible that it is not only simple to operate, and three alternate also have cut-off synchronism preferably.
In addition, for improving the creepage distance between each adjacent static conductive rod 7, all insulating barrier 19 is adopted to separate being exposed between each adjacent static conductive rod 7 outside the first cover plate 2 and the second cover plate 3 in embodiment one and embodiment two, like this, on the basis ensureing safety in utilization, the spacing between each adjacent static conductive rod 7 can be reduced, thus reduce the volume of vacuum interrupter, to reduce manufacturing cost, improve the competitiveness of product in market.
Claims (4)
1. the vacuum interrupter of a three-phase coenosarc, comprise the insulation crust with vacuum lumen and mutually corresponding and three couple in insulation crust spaced apart moves, static contact component, above-mentioned dynamic, moving in static contact component, fixed contact is arranged in described vacuum lumen, dynamic, conducting rod part in static contact component is exposed to described insulation crust, it is characterized in that: each to described dynamic, conducting rod in static contact component comprises two to be exposed respectively and is fixed on the moving conductive rod (6) that the static conductive rod (7) at insulation crust two ends and are positioned at vacuum lumen, a wherein static conductive rod in this two static conductive rod (7) is connected with described fixed contact (5), another static conductive rod in described two static conductive rods (7) is connected with one end of described moving conductive rod (6) by a flexible conductor (8), the moving contact (4) described in other end connection of this moving conductive rod (6), also be provided with in described insulation crust can drive each to described dynamic, moving conductive rod (6) in static contact component axially carries out synchronization-moving actuator along it, described actuator comprises the axial centre place being positioned at described insulation crust and the motion bar (14) be connected with each described moving conductive rod (6) by connecting rod (13), this motion bar (14) moves axially under an outer end is exposed to the driving of the rotating shaft (15) outside described insulation crust, described motion bar (14) one end is plugged in the first guide holder (16) in insulation crust, the other end has a pivot pin (141), the inner of described rotating shaft (15) is provided with rotary body (18), this rotary body (18) has the radial slot (181) inserted for described pivot pin (141), the outer end of described rotating shaft (15) is exposed to outside described insulation crust through after the second guide holder (17) in insulation crust.
2. the vacuum interrupter of three-phase coenosarc according to claim 1, it is characterized in that: described insulation crust comprises the housing (1) of a cylindrical shape and is separately fixed at first, second cover plate (2,3) at housing (1) two ends, the dynamic and static contact assembly of described three couple is uniformly distributed at the inner circumferential interval of described housing (1), and respectively exposes respectively two static conductive rods (7) in dynamic and static contact assembly and be fixed on above-mentioned first, second cover plate (2,3).
3. the vacuum interrupter of three-phase coenosarc according to claim 1, is characterized in that: be provided with each shielding cylinder (9) described dynamic and static contact being located at respectively to its inside in described insulation crust.
4. the vacuum interrupter of three-phase coenosarc according to claim 1, is characterized in that: be provided with the insulating barrier (19) separated by adjacent static conductive rod (7) outside described insulation crust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110233413.0A CN102420072B (en) | 2011-08-12 | 2011-08-12 | Three-phase co-chamber vacuum extinction chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110233413.0A CN102420072B (en) | 2011-08-12 | 2011-08-12 | Three-phase co-chamber vacuum extinction chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102420072A CN102420072A (en) | 2012-04-18 |
| CN102420072B true CN102420072B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110233413.0A Expired - Fee Related CN102420072B (en) | 2011-08-12 | 2011-08-12 | Three-phase co-chamber vacuum extinction chamber |
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| Country | Link |
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| CN (1) | CN102420072B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646544B (en) * | 2012-05-08 | 2015-11-25 | 江苏南瑞恒驰电气装备有限公司 | Sulfur hexafluoride breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306129A (en) * | 1979-08-09 | 1981-12-15 | Siemens Aktiengesellschaft | Low voltage contactor switch with three-phase contact bank |
| CN1262521A (en) * | 1999-01-25 | 2000-08-09 | 株式会社日立制作所 | Vacuum switch apparatus |
| CN2914304Y (en) * | 2006-05-16 | 2007-06-20 | 王华东 | Permanent magnetism intelligent mechanism low-voltage vacuum breaker |
| CN101375360A (en) * | 2006-01-17 | 2009-02-25 | 阿雷瓦T&D股份有限公司 | Alternator circuit-breaker disconnecting switch of compact structure |
| CN202178205U (en) * | 2011-08-12 | 2012-03-28 | 王永法 | Three-phase integrated vacuum arc extinguish chamber |
-
2011
- 2011-08-12 CN CN201110233413.0A patent/CN102420072B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306129A (en) * | 1979-08-09 | 1981-12-15 | Siemens Aktiengesellschaft | Low voltage contactor switch with three-phase contact bank |
| CN1262521A (en) * | 1999-01-25 | 2000-08-09 | 株式会社日立制作所 | Vacuum switch apparatus |
| CN101375360A (en) * | 2006-01-17 | 2009-02-25 | 阿雷瓦T&D股份有限公司 | Alternator circuit-breaker disconnecting switch of compact structure |
| CN2914304Y (en) * | 2006-05-16 | 2007-06-20 | 王华东 | Permanent magnetism intelligent mechanism low-voltage vacuum breaker |
| CN202178205U (en) * | 2011-08-12 | 2012-03-28 | 王永法 | Three-phase integrated vacuum arc extinguish chamber |
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| CN102420072A (en) | 2012-04-18 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 315040, room 11, 912 Dongsheng Road, Jiangdong District, Zhejiang, Ningbo Applicant after: Wang Yongfa Address before: 315100 B5-1603 room, city garden, 521 Zhong Jiang Zhong Lu, Yinzhou District, Zhejiang, Ningbo Applicant before: Wang Yongfa |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20150812 |
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| EXPY | Termination of patent right or utility model |