CN107808785B - 用于电开关的开关锁和具有这种开关锁的电开关 - Google Patents
用于电开关的开关锁和具有这种开关锁的电开关 Download PDFInfo
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- CN107808785B CN107808785B CN201710794876.1A CN201710794876A CN107808785B CN 107808785 B CN107808785 B CN 107808785B CN 201710794876 A CN201710794876 A CN 201710794876A CN 107808785 B CN107808785 B CN 107808785B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3005—Charging means
- H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/045—Energy stored by deformation of elastic members making use of cooperating spring loaded wedging or camming parts between operating member and contact structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/14—Energy stored by deformation of elastic members by twisting of torsion members
- H01H5/16—Energy stored by deformation of elastic members by twisting of torsion members with auxiliary means for temporarily holding parts until torsion member is sufficiently strained
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
- H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/01—Spiral spring
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
- Push-Button Switches (AREA)
Abstract
本发明涉及一种用于电开关的开关锁,其中,开关锁包括弹簧、卡锁机构和操作元件,通过所述操作元件操作电开关的开关主轴,以断开(OFF位置)或者闭合(ON位置)电流,其中,在闭合电流时,朝向ON位置操作所述操作元件并且由此使弹簧拉紧,并且在到达ON位置时,卡锁机构释放弹簧的能量,以操作电开关的开关主轴。
Description
技术领域
本发明涉及一种用于电开关的开关锁和具有这种开关锁的电开关。
背景技术
由于在构造尺寸、电流承载能力等方面对功率开关的要求越来越高,对内部机械结构的要求也越来越高。出于此原因,在构件设计中,特别是在开关锁上由于为接通触头和产生接触力或者挤压角(Durchdruckwinkel)所需的较高弹簧力而到达物理极限。
迄今在开关锁中,能量升高直至到达开关锁的转换点。在转换点处,开关主轴开始旋转,以断开或者闭合电开关。
为了使构件上的机械应力尽可能地小,在本发明中将最大程度存储的能量用于操作开关锁。
发明内容
因此,本发明所要解决的技术问题在于,提供一种用于电开关的开关锁,其尽可能多地使用存储的能量来操作开关主轴。
该技术问题按本发明通过一种用于电开关的开关锁和电开关解决。
按照本发明的用于电开关的开关锁包括弹簧、卡锁机构和操作元件,通过所述操作元件操作电开关的开关主轴,以断开(OFF位置)或者闭合(ON位置)电流,其中,在闭合电流时,朝向ON位置操作所述操作元件并且由此使弹簧拉紧,并且在到达ON位置时,卡锁机构释放弹簧的能量,以操作电开关的开关主轴。
在此有利的是,充分利用了弹簧的最大能量存储量。通过卡锁使弹簧最大程度地被偏移或偏转并且将最大能量传输至开关主轴。在常见的开关锁中,弹簧的能量在约70%时就被释放。本发明不只有利地利用了弹簧的能量,而且也利用了从滑动轴至弹簧轴的较大杠杆,由此在开关主轴上存在明显更大的扭矩。同样有利的是,在机构的转换点处不会出现由于摩擦造成的波动。转换点也与操作元件的操作速度无关。通过卡锁机构,释放不由受到外部因素影响的力平衡确定。此外有利的是,可以在较小的结构空间中实现更快速。通过最大程度地利用弹簧能量,其可以设计得更小并且因此更廉价和机械更稳定。同样有利的是提高了接通安全性。由于所定义的能量不受外部因素影响产生波动,所以能够在开关锁与开关主轴之间更准确地协调适配。
在一种设计方案中,所述操作元件设计为倾翻杆或者旋转杆。
在另一设计方案中,所述卡锁机构通过操作元件的接触被激活。
所述技术问题按照本发明同样通过一种电开关解决,其包括按照本发明的开关锁和开关主轴,其中,所述开关主轴能够通过弹簧的能量被操作。
在电开关的一种设计方案中,在到达ON位置时,卡锁机构释放弹簧的能量,以操作电开关的开关主轴,并且开关主轴使至少一个运动触头与固定触头机械地接触。
在另一设计方案中,所述电开关设计为功率开关。
附图说明
以上描述的本发明的特性、特征和优点以及实现它们的方式方法结合一下对实施例的描述将更清楚易懂,结合附图详细阐述实施例。在附图中:
图1示出在现有技术中的转换点和按照本发明的在ON位置与OFF位置之间的转换点;
图2示出在操作元件的路径上的能量的简化视图;并且
图3示出具有按照本发明的开关锁的电开关。
具体实施方式
在图3中示出具有开关锁100的电开关500。所述电开关500包括与电触头相连的开关主轴510。所述电触头例如可以是运动触头521、521`和固定触头522、522`。通过开关主轴510的旋转,所述电触头521、521`;522、522`可以断开或者闭合电开关500。
开关锁100还包括操作元件130。所述操作元件例如可以是倾翻杆130。同样可以考虑的是,操作元件130设计为旋转杆。
开关锁100还包括弹簧110和卡锁机构120。在之后阐述操作元件130操作电开关500的开关主轴510以使电流断开(OFF位置)或者闭合(ON位置)的流程。
在电流闭合时,也就是在朝向ON位置操作操作元件130时,弹簧110拉紧。弹簧110用作能量储存器并且由于卡锁机构120尚不能将能量输出到电开关500的开关主轴510上。在到达ON位置时,卡锁机构120才释放弹簧110的能量,用于操作电开关500的开关主轴510。
在图1中示出按照本发明的开关锁100的转换点U。为此,针对倾翻杆130显示了从OFF位置向ON位置的半圆形路径。倾翻杆130朝向ON位置运动并且由此使弹簧110拉紧。在能量储存器或者弹簧110的转换点U处,释放弹簧的能量以操作开关主轴510。
在图1中显示了由现有技术已知的典型转换点USdT。所述转换点通常处于倾翻杆130在OFF位置与ON位置之间的路径的70%处。由于现有技术中的转换点USdT处于70%处,所以通过朝向ON位置的进一步运动不会在电开关500的弹簧110中产生能量。在按照本发明的开关锁100中有利的是,转换点U直接布置在ON位置处,并且倾翻杆130的整个路径均可用于使弹簧110拉紧。
转换过程,也就是用于操作电开关500的开关主轴510的弹簧110的能量释放通过操作元件130或者倾翻杆130与卡锁机构120接触被激活。通过使倾翻杆130与卡锁机构120机械地接触,激活卡锁机构120并且由此激活对开关主轴510的操作。
在图2中示出存储在弹簧110中的能量与倾翻杆130的路径的关系。从OFF位置开始,通过朝向ON位置操作倾翻杆130在弹簧110中产生能量。在现有技术中,在倾翻杆130的路径的约70%处到达转换点USdT,所述转换点开启对开关主轴510的操作。通过按照本发明的开关锁100,转换点U朝向ON位置移动。由此同样将到达ON位置之前的路径用于在弹簧110中存储能量,也就是使其拉紧。总地来说,通过按照本发明的开关锁100,可以在弹簧110中存储更多能量。
通过按照本发明的开关锁100,利用了弹簧110的最大蓄能量。通过卡锁机构120使弹簧110最大程度地被偏转或偏移并将最大能量传递至电开关500的开关主轴510上。在传统的倾翻杆式开关锁中,在约70%处就释放能量。
弹簧110的能量释放通过卡锁机构120确定,而不通过受到外界因素影响的力平衡确定。因此,按照本发明的开关锁100在转换点处不具有由于摩擦或者速度产生的波动。
由于充分利用了弹簧110的最大程度的能量存储,所以弹簧可以设计得更小并且因此更廉价和机械稳定。
通过所定义的、不受外界因素影响形成波动的能量,能够实现开关锁与开关主轴之间更紧密的协调适配。
Claims (6)
1.一种用于电开关(500)的开关锁(100),其中,开关锁(100)包括弹簧(110)、卡锁机构(120)和操作元件(130),通过所述操作元件操作电开关(500)的开关主轴(510),以断开(OFF位置)或者闭合(ON位置)电流,
其特征在于,在闭合电流时,朝向ON位置操作所述操作元件(130)并且由此使弹簧(110)拉紧,并且在到达ON位置时,卡锁机构(120)释放弹簧(110)的能量,以操作电开关(500)的开关主轴(510),并且从OFF位置开始,通过朝向ON位置操作所述操作元件(130)在弹簧(110)中产生能量。
2.按权利要求1所述的开关锁(100),其特征在于,所述操作元件(130)设计为倾翻杆或者旋转杆。
3.按权利要求1或2所述的开关锁(100),其特征在于,所述卡锁机构(120)通过操作元件(130)的接触被激活。
4.一种电开关(500),具有按权利要求1至3之一所述的开关锁(100)和开关主轴(510),其中,所述开关主轴(510)能够通过弹簧(110)的能量被操作。
5.按权利要求4所述的电开关(500),其特征在于,在到达ON位置时,卡锁机构(120)释放弹簧(110)的能量,以操作电开关(500)的开关主轴(510),并且开关主轴(510)使至少一个运动触头(521;521`)与固定触头(522;522`)机械地接触。
6.按权利要求4或5所述的电开关(500),其特征在于,所述电开关(500)设计为功率开关。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016217106.2 | 2016-09-08 | ||
DE102016217106.2A DE102016217106A1 (de) | 2016-09-08 | 2016-09-08 | Schaltschloss für einen elektrischen Schalter und elektrischer Schalter mit solch einem Schaltschloss |
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CN107808785A CN107808785A (zh) | 2018-03-16 |
CN107808785B true CN107808785B (zh) | 2019-09-13 |
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CN201710794876.1A Active CN107808785B (zh) | 2016-09-08 | 2017-09-06 | 用于电开关的开关锁和具有这种开关锁的电开关 |
Country Status (5)
Country | Link |
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US (1) | US10580608B2 (zh) |
EP (1) | EP3293746B1 (zh) |
CN (1) | CN107808785B (zh) |
DE (1) | DE102016217106A1 (zh) |
MX (1) | MX2017011457A (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8420968B2 (en) * | 2008-12-31 | 2013-04-16 | Ls Industrial Systems Co., Ltd. | Switching mechanism capable of indicating contacts status and mold cased circuit breaker having the same mechanism |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4736174A (en) | 1987-04-23 | 1988-04-05 | General Electric Company | Molded case circuit breaker operating mechanism |
FR2683089B1 (fr) | 1991-10-29 | 1993-12-31 | Merlin Gerin | Mecanisme de manóoeuvre pour disjoncteur tetrapolaire. |
DE4227213C2 (de) | 1992-08-17 | 1995-08-31 | Kloeckner Moeller Gmbh | Schaltschloß für einen Leistungsschalter |
US5918732A (en) | 1994-11-29 | 1999-07-06 | Klockner-Moeller Gmbh | Power circuit breaker with a breaker mechanism and a breaker mechanism for a power circuit breaker with a lock for a low-voltage switch |
DE4442417C1 (de) * | 1994-11-29 | 1996-02-15 | Kloeckner Moeller Gmbh | Schaltschloß für ein Niederspannungs-Schaltgerät |
US5931289A (en) | 1998-03-10 | 1999-08-03 | Eaton Corporation | Circuit breaker with quick closing mechanism |
US6166344A (en) * | 1999-03-23 | 2000-12-26 | General Electric Company | Circuit breaker handle block |
DE10133878B4 (de) * | 2001-07-12 | 2004-07-08 | Siemens Ag | Schaltgerät mit einem Schaltschloss |
JP4059058B2 (ja) * | 2002-10-28 | 2008-03-12 | 富士電機機器制御株式会社 | 回路しゃ断器 |
-
2016
- 2016-09-08 DE DE102016217106.2A patent/DE102016217106A1/de not_active Withdrawn
-
2017
- 2017-07-05 EP EP17179689.9A patent/EP3293746B1/de active Active
- 2017-08-02 US US15/666,608 patent/US10580608B2/en active Active
- 2017-09-06 CN CN201710794876.1A patent/CN107808785B/zh active Active
- 2017-09-06 MX MX2017011457A patent/MX2017011457A/es active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8420968B2 (en) * | 2008-12-31 | 2013-04-16 | Ls Industrial Systems Co., Ltd. | Switching mechanism capable of indicating contacts status and mold cased circuit breaker having the same mechanism |
Also Published As
Publication number | Publication date |
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EP3293746A1 (de) | 2018-03-14 |
US20180068819A1 (en) | 2018-03-08 |
US10580608B2 (en) | 2020-03-03 |
EP3293746B1 (de) | 2021-08-25 |
MX2017011457A (es) | 2018-09-21 |
CN107808785A (zh) | 2018-03-16 |
DE102016217106A1 (de) | 2018-03-08 |
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