CN1163933C - 断路器 - Google Patents
断路器 Download PDFInfo
- Publication number
- CN1163933C CN1163933C CNB971958270A CN97195827A CN1163933C CN 1163933 C CN1163933 C CN 1163933C CN B971958270 A CNB971958270 A CN B971958270A CN 97195827 A CN97195827 A CN 97195827A CN 1163933 C CN1163933 C CN 1163933C
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- contact
- circuit breaker
- electric connector
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- 238000005452 bending Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims 1
- 230000001846 repelling effect Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
- H01H77/101—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening
Landscapes
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Electronic Switches (AREA)
- Saccharide Compounds (AREA)
- Glass Compositions (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Relay Circuits (AREA)
- Control Of Ac Motors In General (AREA)
- Contacts (AREA)
- Lock And Its Accessories (AREA)
- Air Bags (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
一种断路器,包括连接于致动装置上并带有接触表面的动触头,该接触表面的设置,通过动触头在第一方向上的移动而与第二触头接触表面接触。断路器还包括电连接器,用以将电流传递给动触头,电连接器包括至少两个相邻部件,其适于在基本上相反的方向传递所述电流,以便产生电磁力,电磁力使所述相邻部件相互排斥。排斥力可用以帮助保持接触表面的接合。另外,当操作致动器而打开触点时,排斥力作用以加速致动器第一部分的行程。
Description
本发明涉及一种断路器,特别是涉及一种这样的断路器,其包括连接于具有接触表面的动触头上的软电连接器,该接触表面的设置,用以与相对固定触头上的接触表面接合或断开,以便接通或断开相关电路,各接触表面通常垂直于动触头的移动方向延伸。
在任何断路器设计中主要考虑的因素之一,就是保证将足够的压力通过接触加载弹簧而提供给载流接触表面,以便避免在相关电路中出现故障的情况下接触表面焊接在一起。当过载故障电流流过接触表面时,会产生大量的热。根据所采用的接触设计以及类型,特别是在真空断路器中所采用的对接型接触,通常要包括有“断开”力。这就是由故障电流所产生的电磁力,其会将接触表面分开,减小接触压力,这将增加电阻并且导致进一步发热,或者甚至使最初接触表面分开和起弧。如此发热或起弧使接触表面焊接在一起。如果出现焊接,断路器打开操作机构将在故障电流通过以后,难以分开接触表面,并且甚至会不能断开故障电流。
按照一方面,本发明提供一种断路器,其包括动触头,该触头连接于致动装置上并带有接触表面,接触表面的设置用以通过动触头在第一方向上的运动,而与第二触头接触表面接触,断路器进一步包括将电流传递给动触头的电连接器,所述电连接器包括至少两个相邻部件,其适于在基本相反方向上传递所述电流,以便产生电磁力,该电磁力用来帮助保持接触表面相接的所述相邻部件相互排斥。
按照另一方面,本发明提供一种断路器,其包括动触头,动触头连接于致动装置上并带有接触表面,接触表面的设置,用以与基本固定的触头上所具有接触表面接合或断开,以便相接或断开相关电路,各接触表面垂直或基本垂直于动触头的移动方向而延伸,其中由固定导体延伸到动触头的软电连接可制成弯曲带,其具有平面型部件,该部件通过平面型部件的回弯而相互连接,平面型部件基本垂直于动触头移动方向而延伸,用以产生电磁力,该电磁力可在电流流过软电连接时,于动触头移动方向上使一个平面型部件与相邻的另一平面型部件排斥,该力在接触表面接合方向上作用于动触头与致动装置之间。
最好是将软电连接制成弯曲带,其具有至少三个通过回弯连接的平面型部件。最外边的平面型部件可以具有刚性结构,而中间的部件或各部件和回弯可以具有弹性结构。
如示意图所示,在本发明的一个实施例中,断路器可装在气体密封的外壳中,如交流真空断路器,其包括与各相关固定导体6,8连接在一起的静触头2和动触头4。动触头包括致动棒10,其定位在致动圆筒12中,而致动圆筒12装载于导引机构(未示出)中,并且机械地连接于致动机构(未示出)上。(人们将会理解,可用鞍座或支架装置来代替致动圆筒12)。压缩弹簧14可在致动棒10上的肩部16与致动圆筒12中的凸缘18之间作用,用以将动触头4推向静触头2。拉簧20在远离静触头2的方向上偏压致动圆筒12。致动圆筒12在远离静触头2方向上的移动,可通过凸缘18传递到旋拧于致动棒10上的螺母22上,并且在标称电流流过情况下与凸缘18略有间隔。
软带状电连接24包括连接于固定导体8上的第一部件26,并通过回弯28连接于第二部件30上。第二部件30通过回弯32连接于第三部件34上,第三部件34固定于动触头4上。第一、第二和第三部件26,30和34是带孔的,以便配合致动棒10,并且至少第一和第三部件26,34可具有与回弯28,32相比更加强的刚性。第一部件26抵靠在致动圆筒12的作用端面36上,第三部件可抵靠在动触头4上的垫圈38上。
在操作中,由于静和动触头2,4上的各接触面42,44接合,电流通过静和动触头2,4以及软连接24而在固定导体6,8之间流动。流过软连接24的相邻部件26,30,34的电流,可以是相反方向,这样使得由电流所产生的电磁力作用,将第一部件26推离第二部件30,并将第二部件30推离第三部件34。这些排斥力增大了由压缩弹簧14所产生的力,以使接触表面42,44保持接触。在电路中出现过载情况下,致动机构迅速地动作,以推动致动圆筒12,并顺序地使凸缘18与螺母22接合,动触头4推离静触头2,以便断开电流。由于致动圆筒12的反作用端面36离开静触头2,各部件之间的距离增加,使得部件26,30,34中所产生的电磁排斥力的作用降低,并且不再阻止动触头4的打开运动。当断开两接触表面42,44之间的电流时,部件26,30,34中的电流会消失,使得排斥电磁力为零,并由此通过致动机构将致动圆筒12移向静触头2时,不会相反地使接触表面42,44再闭合。然后,一旦接触表面42,44再闭合,排斥电磁力会再建立,从而产生附加的接触加载力。
由于该设置增强了接触表面42,44分离的方式,因此实质上减少了起弧或出现焊接的任何倾向。
如此可允许在高短路标准设备的断路器设计中,采用更轻和更便宜的机构和低标准控制。
另外应注意,在由致动器使断路器打开的过程中,致动圆筒12的作用端面36,在最初由软带状电连接24所产生的电磁排斥力的辅助下离开静触头2。该排斥力的作用有助于弹簧20和14加速圆筒12,直到凸缘18碰到螺母22为止,螺母22起推力的作用,以便使主接触表面42,44分离,并且断开由于额外电流所出现的接触表面的任何轻微焊接。一旦凸缘18与螺母22之间所具有的间隙闭合,电磁力和接触压力弹簧14将在打开运动(其试图拉伸致动棒10)的操作中失效,并且打开弹簧20将完成触头2和4的打开动作。
这种类型的软连接的另一应用是直接作用瞬时带,例如适用于直流断路器。在该应用中,排斥力用于在需要直接操作作用带时提供辅助接触压力。该力作用于移动触点上,致动器保持该力直到电流达到该力足以克服机械的或磁的夹持或锁定力的数值为止,由此使断路器断开。
在特别适用于直流断路器的另一设置(未示出)中,两个触头可设置成使连接于致动机构上的触头之一可以移动,并且使连接于加载弹簧构件上的另一触头固定。可将软电连接24提供给每个触头,并用作提供如前所述的辅助断路器的断开。
在对于具有三个平面型部件的软电连接24进行描述的同时,将会理解,还可以采用其他的构成形式,其中安排电流以相反方向流动在具有足够活动距离的相邻部件中,以便产生所需的电磁力,用以获得为保持接触表面42,44接合所需的力。
还将会理解,电连接24不需要一定由软带状电连接来实现。一般情况下,可采用任何电连接,其包括适用于在基本相反方向上传递电流以便产生电磁力的两个相邻部件,相邻部件由该电磁力而相互排斥。还可以使用一端由铰链连接的刚性部件。
Claims (9)
1.一种断路器,包括连接于致动装置上并带有接触表面的动触头,该接触表面的设置,用以通过动触头在大致第一方向上的移动而与第二触头接触表面接触,断路器进一步包括电连接器,用以将电流传递给动触头,所述电连接器包括至少两个相邻部件,其适于在基本上相反的方向上传递所述电流,以便产生电磁力,电磁力使所述相邻部件相互排斥,用以帮助保持接触表面的接合,其中:
最外边的部件可分别支承在致动装置的作用端面上和动触头上,和
动触头通过相对于致动装置可位移的连接棒而连接于致动装置上,并且在第一方向上受偏压,以便在第一和第二触头闭合时,在致动装置和连接棒之间形成空隙,由此在触点打开操作过程中,电磁力可帮助加速空隙的闭合。
2.按照权利要求1的断路器,其中电连接器为软带状,其具有至少两个基本平面状的部件,部件通过回弯而相互连接。
3.按照权利要求2的断路器,其中每个平面状部件基本上垂直于第一方向而延伸。
4.按照权利要求3的断路器,其中电连接器可制成弯曲带,其具有至少三个由回弯连接的平面型部件。
5.按照权利要求4的断路器,其中最外的平面型部件为刚性结构,而中间部件或各部件和回弯可为弹性结构。
6.按照上述任一权利要求的断路器,其中每个接触表面基本垂直于第一方向而延伸。
7.按照权利要求1的断路器,其中致动装置包括用以在第一方向上提供给所述动触头预定保持力和断开阈值的机构,当与所述第一方向相反的力超过断开阈值时,会使所述触点打开,当超过预定电流阈值时,与所述第一方向相反的所述力由电连接器提供。
8.按照权利要求1的断路器,其中所述第二触头在与所述第一方向相反的方向上移动,并且包括将电流传递给第二触头的第二连接器,所述第二电连接器包括至少两个相邻部件,其适于在基本上相反的方向上传递所述电流,以便产生电磁力,使所述相邻部件相互排斥,该力可用以帮助保持接触表面的接合。
9.按照权利要求1的断路器,其中电连接器的相邻部件或电连接器可具有足够的活动距离,以便产生所需电磁力,从而获得保持接触表面接合所需的力。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9614169.2A GB9614169D0 (en) | 1996-07-05 | 1996-07-05 | Electrical circuit breakers |
GB9614169.2 | 1996-07-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1223741A CN1223741A (zh) | 1999-07-21 |
CN1163933C true CN1163933C (zh) | 2004-08-25 |
Family
ID=10796432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB971958270A Expired - Lifetime CN1163933C (zh) | 1996-07-05 | 1997-07-04 | 断路器 |
Country Status (26)
Country | Link |
---|---|
US (1) | US6140894A (zh) |
EP (1) | EP0909453B1 (zh) |
JP (1) | JP3041313B2 (zh) |
KR (1) | KR100311344B1 (zh) |
CN (1) | CN1163933C (zh) |
AT (1) | ATE189335T1 (zh) |
AU (1) | AU709410B2 (zh) |
BR (1) | BR9710191A (zh) |
CA (1) | CA2257594C (zh) |
CZ (1) | CZ298031B6 (zh) |
DE (1) | DE69701227T2 (zh) |
EE (1) | EE9900009A (zh) |
ES (1) | ES2144319T3 (zh) |
GB (1) | GB9614169D0 (zh) |
HK (1) | HK1019508A1 (zh) |
IL (1) | IL127905A (zh) |
MY (1) | MY127654A (zh) |
NO (1) | NO316563B1 (zh) |
NZ (1) | NZ333355A (zh) |
PL (1) | PL188169B1 (zh) |
PT (1) | PT909453E (zh) |
TR (1) | TR199802750T2 (zh) |
UA (1) | UA42876C2 (zh) |
WO (1) | WO1998001883A1 (zh) |
YU (1) | YU49071B (zh) |
ZA (1) | ZA975990B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US6616204B1 (en) * | 1999-05-24 | 2003-09-09 | Illinois Tool Works Inc. | Adjustable mounting plate |
US9177742B2 (en) * | 2011-10-18 | 2015-11-03 | G & W Electric Company | Modular solid dielectric switchgear |
FR2993092B1 (fr) | 2012-07-03 | 2015-04-17 | Schneider Electric Ind Sas | Appareil de coupure comprenant des moyens de maintien en fermeture des contacts |
DE102012216974B4 (de) | 2012-09-21 | 2020-03-05 | Siemens Aktiengesellschaft | Vorrichtung zur Übertragung von Kräften |
CN102891047B (zh) * | 2012-09-26 | 2013-12-11 | 常熟开关制造有限公司(原常熟开关厂) | 开关装置的导电回路结构 |
DE102013216018B4 (de) * | 2013-08-13 | 2021-06-02 | Siemens Aktiengesellschaft | Vorrichtung zur Übertragung von Kräften |
US9685280B2 (en) | 2014-04-11 | 2017-06-20 | S&C Electric Company | Switchgear operating mechanism |
US9679708B2 (en) | 2014-04-11 | 2017-06-13 | S&C Electric Company | Circuit interrupters with masses in contact spring assemblies |
US9570826B2 (en) * | 2014-12-08 | 2017-02-14 | Eaton Corporation | Connection apparatus usable in vacuum interrupter |
EP3690917B1 (en) * | 2017-10-25 | 2023-12-13 | Xi'an Jiaotong University | High-voltage relay resistant to instantaneous great-current impact |
CN116581004B (zh) * | 2023-07-12 | 2023-09-26 | 国网山东省电力公司临邑县供电公司 | 一种大电流断路器手动开关分合装置 |
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DE1513541A1 (de) * | 1965-10-21 | 1970-01-08 | Siemens Ag | Einrichtung zur unmittelbaren Kontakttrennung bei grossen UEberstroemen |
US3366900A (en) * | 1966-06-16 | 1968-01-30 | Gen Electric | Electric circuit breaker with electromagnetic means for opposing contactrepulsion forces |
US3614353A (en) * | 1968-05-30 | 1971-10-19 | Tokyo Shibaura Electric Co | Switching device having electro-magnetic means for increasing effective contact pressure |
FR1580422A (zh) * | 1968-07-05 | 1969-09-05 | ||
US3582587A (en) * | 1969-02-03 | 1971-06-01 | Gen Electric | Vacuum-type circuit interrupter having a stroke length dependent upon current magnitude |
DE7241723U (de) * | 1972-11-14 | 1973-04-05 | Kiepe Bahn Elektrik Gmbh | Bandnockenschalter mit zwei Schalenhäften und einem in diesen gelagerten Nockenhebel |
US4032870A (en) * | 1975-09-15 | 1977-06-28 | General Electric Company | Electric circuit breaker with electromagnetic-assist means for opposing magnetic contact-separating forces |
US4153827A (en) * | 1976-01-26 | 1979-05-08 | Merlin Gerin | Magnetic blow-out arc extinguishing device |
FR2339243A1 (fr) * | 1976-01-26 | 1977-08-19 | Merlin Gerin | Conducteur de connexion flexible |
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US4656444A (en) * | 1985-08-16 | 1987-04-07 | Westinghouse Electric Corp. | Circuit breaker with force generating shunt |
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1996
- 1996-07-05 GB GBGB9614169.2A patent/GB9614169D0/en active Pending
-
1997
- 1997-07-04 DE DE69701227T patent/DE69701227T2/de not_active Expired - Lifetime
- 1997-07-04 EE EEP199900009A patent/EE9900009A/xx unknown
- 1997-07-04 CZ CZ0001399A patent/CZ298031B6/cs not_active IP Right Cessation
- 1997-07-04 BR BR9710191A patent/BR9710191A/pt not_active IP Right Cessation
- 1997-07-04 ZA ZA975990A patent/ZA975990B/xx unknown
- 1997-07-04 EP EP97930622A patent/EP0909453B1/en not_active Expired - Lifetime
- 1997-07-04 TR TR1998/02750T patent/TR199802750T2/xx unknown
- 1997-07-04 PL PL97330605A patent/PL188169B1/pl not_active IP Right Cessation
- 1997-07-04 CN CNB971958270A patent/CN1163933C/zh not_active Expired - Lifetime
- 1997-07-04 KR KR1019980710662A patent/KR100311344B1/ko not_active IP Right Cessation
- 1997-07-04 ES ES97930622T patent/ES2144319T3/es not_active Expired - Lifetime
- 1997-07-04 AT AT97930622T patent/ATE189335T1/de not_active IP Right Cessation
- 1997-07-04 NZ NZ333355A patent/NZ333355A/xx unknown
- 1997-07-04 IL IL12790597A patent/IL127905A/en not_active IP Right Cessation
- 1997-07-04 UA UA99010015A patent/UA42876C2/uk unknown
- 1997-07-04 WO PCT/GB1997/001805 patent/WO1998001883A1/en active IP Right Grant
- 1997-07-04 US US09/202,410 patent/US6140894A/en not_active Expired - Lifetime
- 1997-07-04 CA CA002257594A patent/CA2257594C/en not_active Expired - Fee Related
- 1997-07-04 JP JP10504923A patent/JP3041313B2/ja not_active Expired - Lifetime
- 1997-07-04 YU YU58198A patent/YU49071B/sh unknown
- 1997-07-04 AU AU34505/97A patent/AU709410B2/en not_active Expired
- 1997-07-04 PT PT97930622T patent/PT909453E/pt unknown
- 1997-07-05 MY MYPI97003063A patent/MY127654A/en unknown
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1998
- 1998-12-28 NO NO986138A patent/NO316563B1/no not_active IP Right Cessation
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1999
- 1999-10-20 HK HK99104645A patent/HK1019508A1/xx not_active IP Right Cessation
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