CN102420072A - Three-phase co-chamber vacuum extinction chamber - Google Patents
Three-phase co-chamber vacuum extinction chamber Download PDFInfo
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- CN102420072A CN102420072A CN2011102334130A CN201110233413A CN102420072A CN 102420072 A CN102420072 A CN 102420072A CN 2011102334130 A CN2011102334130 A CN 2011102334130A CN 201110233413 A CN201110233413 A CN 201110233413A CN 102420072 A CN102420072 A CN 102420072A
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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 that is applied in the three-phase coenosarc in the power switches such as vacuum circuit-breaker and vacuum load switch.
Background technology
Vacuum interrupter is the core component of middle and high piezoelectric forces 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 that is sealed in the vacuum chamber to realize the on-off function of power circuit, and in case cut off circuit power, vacuum interrupter blow-out rapidly also suppress electric current, avoids getting an electric shock or other contingencies take place.Be applied to the power switch in three-phase commercial power field; Often be equipped with the three-phase vacuum interrupter, existing three-phase vacuum interrupter is assembled by three single-phase independently vacuum interrupters mostly, and volume is relatively large; Overall structure is compact inadequately; And three the alternate synchronism of cut-offfing relatively poor, this not only can influence its useful life, but also the stability of electric power system is had a negative impact.
, three alternate cut-off synchronism relatively poor defectives big to existing this three-phase vacuum interrupter volume; The vacuum interrupter that people just design a kind of three-phase coenosarc comes; Like the patent No. is the vacuum interrupter that the Chinese utility model patent " the rotary-type double-fracture vacuum arc extinguish chamber of three-phase " of ZL201020653072.3 (Granted publication CN201886961U) just discloses a kind of three-phase coenosarc; It includes an insulated axle; One end of this insulation axle links to each other with external power supply; The other end puts in the rotary-type double-fracture vacuum arc extinguish chamber of three-phase disc type and is connected with the insulating disc that outer rim has three conductor connecting rods, and the two ends of each conductor connecting rod are provided with moving contact, and fixed contact is fixed on the internal perisporium of arc control device; Two moving contacts on conductor connecting rod end face and two fixed contacts on the internal perisporium that is fixed on arc control device form a double break mouth structure mutually, and three groups of dynamic and static contacts form three-phase double break mouth structures.During work, drive the insulation axle through external drive motors or rotating machinery and rotate, the insulation axle drives the moving contact rotation on insulating disc and the conductor connecting rod, thereby makes three groups of dynamic and static contacts realize effectively synchronous deciliter, accomplishes the interrupting process of three-phase line.Than existing modular three-phase vacuum interrupter; The rotary-type double-fracture vacuum arc extinguish chamber of this three-phase adopts the coexist structure of a Room of three-phase, and overall structure is comparatively compact, and volume is less; Cost is lower; And can realize three alternate synchronous switching offs through rotating outside insulation axle, not only the three-phase conjoined operation is simple, and synchronism is better.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned prior art present situation, a kind of novel structure is provided and possesses equally that volume is less, cost is low and the three-phase synchronism vacuum interrupter of three-phase coenosarc preferably.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the vacuum interrupter of this three-phase coenosarc; Comprise insulation crust and the mutual corresponding and dynamic and static contact assembly of three couples in insulation crust spaced apart with vacuum lumen; Dynamic and static contact in the above-mentioned dynamic and static contact assembly is arranged in said vacuum lumen; Conducting rod in the dynamic and static contact assembly partly is exposed to described insulation crust; It is characterized in that: each comprises two static conductive rod and moving conductive rods that are positioned at vacuum lumen that expose and be fixed on the insulation crust two ends respectively to the conducting rod in the said dynamic and static contact assembly; Wherein static conductive rod in this two static conductive rod is connected with said fixed contact; Another static conductive rod in said two static conductive rods links to each other with an end of said moving conductive rod through a flexible conductor; The other end of this moving conductive rod connects described moving contact, in described insulation crust, also is provided with can drive each the moving conductive rod in the said dynamic and static contact assembly is axially carried out synchronization-moving actuator along it.
As a preferred version; Described actuator comprises the axially movable action bars of axial centre place ability that is positioned at insulation crust; The outer end of this action bars is supported on the outer support of insulation crust, and the inner of this action bars is connected with each described moving conductive rod respectively through connecting rod after passing a seal again.Like this, can realize the three-phase conjoined operation through moving axially action bars, not only simple to operate, and alternately can realize cut-offfing preferably synchronism three.
To the further improvement of above-mentioned preferred version, described seal is a bellows, and this bellows is near leaving the distance that supplies connecting rod to move between end of connecting rod and connecting rod.After adopting bellows, can make the air-tightness of vacuum interrupter be able to further raising.
As another preferred version, described actuator comprises axial centre place that is positioned at insulation crust and the motion bar that is connected through the said moving conductive rod of connecting rod and each, and this motion bar moves axially under an outer end is exposed to the driving of the rotating shaft outside the insulation crust.Like this; Can realize the three-phase conjoined operation through rotating shaft; Rotating shaft drives motion bar and axially moves around when rotating, motion bar drives each moving conductive rod after through connecting rod and carries out axial same moved further, and then makes each to dynamic and static contact locking phase contact or break off; Not only simple to operate, and alternately can realize cut-offfing preferably synchronism three.
Further improvement to above-mentioned preferred version; Described motion bar one end is plugged in first guide holder in the insulation crust; The other end has a pivot pin; The inner of said rotating shaft is equipped with rotary body, on this rotary body, has the radial slot that supplies said pivot pin to insert, and the outer end of said rotating shaft is exposed to outside the insulation crust after passing second guide holder in the insulation crust.After adopting such structure, rotating shaft is rotated with the rotation of driven rotary body, and rotary body rotation back drives motion bar and moves axially, and finally realizes the three-phase conjoined operation.Certainly, under the requirement of satisfying make-and-break time, described rotating shaft also can be adopted axial arranged screw structure; A nut has been threaded on this screw mandrel; Motion bar and nut fix, and through 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 arbitrary scheme; Described insulation crust comprises a housing cylindraceous and first, second cover plate that is separately fixed at the housing two ends; Described three pairs of dynamic and static contact assemblies evenly distribute at the interior circumferential interval of said housing, and each exposes respectively two static conductive rods in the dynamic and static contact assembly and is 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 comparatively convenient, and respectively organizes dynamic and static contact assembly uniformly at intervals in housing, makes that the integral structure layout of vacuum interrupter is more reasonable.
For further improving the insulation degree of vacuum interrupter, be provided with in the described insulation crust each is located at its inner shielding cylinder respectively to described dynamic and static contact.Each is located in the shielding cylinder separately dynamic and static contact, also can reduces each, use safer, reliable the interference each other of dynamic and static contact.
For improving the creepage distance between each adjacent static conductive rod, described insulation crust is provided with the insulating barrier that adjacent static conductive rod is separated outward.Through insulating barrier is set, on the basis that guarantees safety in utilization, can reduce the spacing between each adjacent static conductive rod, thereby dwindle the volume of vacuum interrupter, reduce manufacturing cost.
Compared with prior art; Because three pairs of dynamic and static contact assemblies of the present invention are distributed in the insulation crust, promptly the three pairs of dynamic and static contacts are positioned at the vacuum lumen of same insulation crust, and by means of the axially movable mode of cut-offfing of moving conductive rod; Make structure of the present invention more compact; Volume is littler, and manufacturing cost is lower, is more suitable for being applied in the miniaturized intelligent electrical network.In addition; Static conductive rod of the present invention is exposed at the insulation shell two ends outward; Moving conductive rod is located at vacuum lumen inside, and an end of each moving conductive rod is connected an end of corresponding static conductive rod through flexible conductor, in insulation crust, is provided with to carry out driven in synchronism so that each realizes breaking off synchronously to dynamic and static contact or actuator of contact to each moving conductive rod; It is thus clear that its overall structure is comparatively novel, and can realize the three alternate synchronisms of cut-offfing preferably.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention two;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is that the A of Fig. 3 is to the partial structurtes sketch map.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one: as depicted in figs. 1 and 2, the insulation crust of the vacuum interrupter of this three-phase coenosarc comprises housing 1 cylindraceous and is installed in first cover plate 2 and second cover plate 3 at housing two ends about in the of 1 respectively, in the inner vacuum lumen that forms of insulation crust.Three pairs of dynamic and static contact assemblies evenly distribute at the interior circumferential interval of housing 1, and Fig. 1 analyses and observe part and shows the wherein structure of a pair of dynamic and static contact assembly.Analysing and observe part by this can know; A pair of dynamic and static contact assembly comprises a pair of dynamic and static contact, two static conductive rods 7, a moving conductive rod 6 and a flexible conductor 8; Wherein two static conductive rod 7 outer ends are exposed respectively and are fixed on first cover plate 2 and second cover plate 3, and the inner is connected with flexible conductor 8 with fixed contact 5 respectively.Flexible conductor 8 is " U " type conductor of laterally placing, and side arm is connected with the inner of static conductive rod 7 on being fixed on first cover plate 3 on it, 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 the insulation degree that improves vacuum interrupter and reduce each to the interference each other of dynamic and static contact, each is positioned at shielding cylinder 9 separately to dynamic and static contact.Like this, adopt three-phase to coexist after the structure of a Room, the overall structure of this vacuum interrupter is comparatively compact; Volume is less; Cost is lower, and can be widely used in especially is worth in the intelligent grid of miniaturization, applying in three-phase cut-offs together in the electric power system the vacuum circuit-breaker or on-load switch.
In the present embodiment, in insulation crust, also be provided with three moving conductive rods 6 that can drive in three pairs of dynamic and static contact assemblies and axially promptly carry out synchronization-moving actuator up and down along it.Particularly; This actuator comprises and is positioned at the action bars 11 that housing 1 axial centre place can move up and down; The upper end of this action bars 11 is supported on the support 12 outside first cover plate 2, and the lower end of this action bars 11 is connected with each moving conductive rod 6 respectively through each connecting rod 13 after passing bellows 10 again.Its concrete three-phase conjoined operation process is: externally through moving on drive motors or other drive source driving operations bars 11, and then drive each connecting rod 13 and each moving conductive rod 6 moves synchronously, each is broken off dynamic and static contact synchronously; And action bars 11 moves down, and then drives each connecting rod 13 and each moving conductive rod 6 moves down synchronously, and each is contacted dynamic and static contact locking phase.It is thus clear that it is not only simple to operate, and three alternate also have cut-off synchronism preferably.
Embodiment two: to shown in Figure 5, the structure of every pair of dynamic and static contact assembly of present embodiment is identical with embodiment one like Fig. 3, and the structure of actuator is difference to some extent then.Particularly; The actuator of present embodiment comprises and is positioned at the motion bar 14 that the inner axial centre place of housing 1 can move up and down; The upper end of this motion bar 14 is plugged in first guide holder 16 that is fixed on first cover plate, 2 lower surfaces, and the lower end of motion bar 14 has a pivot pin 141, and the sidepiece of motion bar 14 is connected with each moving conductive rod 6 respectively through each connecting rod 13; Rotating shaft 15 radially is installed in the sidewall of housing 1; The inner of rotating shaft 15 is equipped with rotary body 18, on rotary body 18, has the radial slot 181 that supplies above-mentioned pivot pin 141 to insert, and the outer end of rotating shaft 15 stretches out in outside the housing 1 after passing second guide holder 17 that is fixed on housing 1 medial surface.Its concrete three-phase conjoined operation process is: externally drive rotating shaft 15 through drive motors or other rotating machinerys and rotate; Driven rotary body 18 rotations when rotating shaft 15 is rotated; And then drive motion bar 14 moves up and down; And motion bar 14 moves up and down through each connecting rod 13 each moving conductive rod 6 of drive synchronously, finally realizes each synchronous disconnection or contact to dynamic and static contact.It is thus clear 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 adopt insulating barrier 19 to separate among embodiment one and the embodiment two between each the adjacent static conductive rod 7 outside being exposed to first cover plate 2 and second cover plate 3; Like this; On the basis that guarantees safety in utilization, can reduce the spacing between each adjacent static conductive rod 7, thereby dwindle the volume of vacuum interrupter; To reduce manufacturing cost, improve the competitiveness of product in market.
Claims (8)
1. the vacuum interrupter of a three-phase coenosarc; Comprise insulation crust and the mutual corresponding and dynamic and static contact assembly of three couples in insulation crust spaced apart with vacuum lumen; Dynamic and static contact in the above-mentioned dynamic and static contact assembly is arranged in said vacuum lumen; Conducting rod in the dynamic and static contact assembly partly is exposed to described insulation crust; It is characterized in that: each comprises two static conductive rods that expose respectively and be fixed on the insulation crust two ends (7) and a moving conductive rod (6) that is positioned at vacuum lumen to the conducting rod in the said dynamic and static contact assembly; Wherein static conductive rod in this two static conductive rod (7) is connected with said fixed contact (5); Another static conductive rod in said two static conductive rods (7) links to each other with an end of said moving conductive rod (6) through a flexible conductor (8); The other end of this moving conductive rod (6) connects described moving contact (4), in described insulation crust, also is provided with can drive each the moving conductive rod (6) in the said dynamic and static contact assembly is axially carried out synchronization-moving actuator along it.
2. the vacuum interrupter of three-phase coenosarc according to claim 1; It is characterized in that: described actuator comprises the axial centre place ability axially movable action bars (11) that is positioned at said insulation crust; The outer end of this action bars (11) is supported on the outer support (12) of insulation crust, and the inner of this action bars (11) is connected with each described moving conductive rod (6) respectively through connecting rod (13) after passing a seal again.
3. the vacuum interrupter of three-phase coenosarc according to claim 2, it is characterized in that: described seal is a bellows (10), this bellows (10) is near leaving the distance that supplies connecting rod (13) to move between end of connecting rod (13) and connecting rod (13).
4. the vacuum interrupter of three-phase coenosarc according to claim 1; It is characterized in that: described actuator comprises the axial centre place that is positioned at said insulation crust and through the motion bar (14) that connecting rod (13) is connected with each said moving conductive rod (6), moves axially under the driving of the rotating shaft (15) of this motion bar (14) outside an outer end is exposed to said insulation crust.
5. the vacuum interrupter of three-phase coenosarc according to claim 4; It is characterized in that: described motion bar (14) one ends are plugged in first guide holder (16) in the insulation crust; The other end has a pivot pin (141); The inner of said rotating shaft (15) is equipped with rotary body (18), on this rotary body (18), has the radial slot (181) that supplies said pivot pin (141) to insert, and the outer end of said rotating shaft (15) is exposed to outside the said insulation crust after passing second guide holder (17) in the insulation crust.
6. according to the vacuum interrupter of any one described three-phase coenosarc in the claim 1 to 5; It is characterized in that: described insulation crust comprises a housing cylindraceous (1) and is separately fixed at first, second cover plate (2,3) at housing (1) two ends; Described three pairs of dynamic and static contact assemblies evenly distribute at the interior circumferential interval of said housing (1), and each exposes respectively two static conductive rods (7) in the dynamic and static contact assembly and is fixed on first, second above-mentioned cover plate (2,3).
7. according to the vacuum interrupter of any one described three-phase coenosarc in the claim 1 to 5, it is characterized in that: be provided with in the described insulation crust each is located at its inner shielding cylinder (9) respectively to described dynamic and static contact.
8. according to the vacuum interrupter of any one described three-phase coenosarc in the claim 1 to 5, it is characterized in that: described insulation crust is provided with the insulating barrier (19) that adjacent static conductive rod (7) is separated outward.
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 true CN102420072A (en) | 2012-04-18 |
| CN102420072B CN102420072B (en) | 2015-04-15 |
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Family Applications (1)
| 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646544A (en) * | 2012-05-08 | 2012-08-22 | 无锡恒驰电器制造有限公司 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646544A (en) * | 2012-05-08 | 2012-08-22 | 无锡恒驰电器制造有限公司 | Sulfur hexafluoride breaker |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102420072B (en) | 2015-04-15 |
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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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