WO2009043718A1 - Schockfeste auslöseeinrichtung zur auslösung eines schalters, insbesondere eines leistungsschalters - Google Patents
Schockfeste auslöseeinrichtung zur auslösung eines schalters, insbesondere eines leistungsschalters Download PDFInfo
- Publication number
- WO2009043718A1 WO2009043718A1 PCT/EP2008/062338 EP2008062338W WO2009043718A1 WO 2009043718 A1 WO2009043718 A1 WO 2009043718A1 EP 2008062338 W EP2008062338 W EP 2008062338W WO 2009043718 A1 WO2009043718 A1 WO 2009043718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- triggering
- lever
- arm
- drive unit
- Prior art date
Links
Classifications
-
- 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
- H01H71/1054—Means for avoiding unauthorised release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1692—Electromagnets or actuators with two coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/17—Pivoting and rectilinearly-movable armatures
-
- 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
- H01H71/1054—Means for avoiding unauthorised release
- H01H2071/1063—Means for avoiding unauthorised release making use of an equilibrating mass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Definitions
- Shock-resistant tripping device for triggering a switch, in particular a circuit breaker
- the invention relates to a shock-resistant release device for triggering a switch, in particular a circuit breaker, with a lever pivotable about an axis with a first arm having a trigger element which causes a triggering of the switch in a movement in a triggering direction.
- These tripping devices usually comprise a drive device in the form of an electromagnet with a movable armature, which moves a trigger element via a drive mechanism, whereby a switching or locking mechanism of the switch is actuated and causes a switching or locking of the circuit breaker.
- the control of the electromagnet can be done remotely via an electrical signal, for example.
- such tripping devices are subject to particular shock resistance requirements.
- shock resistance requirements e.g. For naval vessels particularly high shock strengths of 22g for 20 ms in a semi-sinus impact shape required.
- the shock resistance can be increased by means of springs, which make it difficult to move the lever in the release direction. However, this requires in the case that a release is actually desired, a higher force for the movement of the lever arm and thus higher drive power.
- the pivotable lever has a second arm arranged with respect to the first arm such that when the force is applied to the axle in a direction opposite to the triggering direction via the first arm, a first torque and a second torque through the second arm acting on the lever, wherein the first torque and the second torque are oppositely directed.
- the two torques at least partially compensate, so that a movement of the triggering element in the triggering direction can be at least reduced in the event of a shock, which increases the shock resistance.
- the increase in the shock resistance is thus possible without the use of additional springs or other, the movement of the trigger element in the triggering aggravating components, so that no significant increase in the drive power for the movement of the lever in the release direction is required.
- the first and the second torque are approximately equal in magnitude, the two torques compensate completely and a movement of the trigger element in the triggering direction can be avoided particularly reliably in the event of a shock.
- the second arm may also be coupled to a second drive unit for moving the triggering element in the triggering direction.
- the two drive units can then be used for different functionalities, e.g. a drive unit for the operational switching off of the switch and the other drive unit for locking against unintentional switching on.
- the two drive units can then act via a common trigger element.
- the switch mechanism can be simplified on the side of the switch and thus made particularly shock resistant.
- the first and the second drive unit are preferably independently controllable.
- the coupling of the first drive unit to the first arm and the coupling of the second drive unit to the second arm is designed such that a third torque can be exerted on the lever by the first drive unit and a fourth torque can be exerted by the second drive unit, wherein the third torque and the fourth torque are the same direction.
- Both drive units can then work together on a tripping operation, i. a movement of the trigger element in the release direction, cooperate, whereby the triggering process can be accelerated.
- a maximum acceleration is achieved here when the third and the fourth torque can be exercised simultaneously on the lever.
- the third and then fourth torque can be exerted on the lever in chronological succession. With the third torque, the switch can be triggered and then locked by means of the fourth torque against inadvertent switching on.
- the third and the fourth torque and then only the fourth torque can be exercised on the lever in temporal succession first together.
- the lever can then be moved in the first time phase with maximum acceleration in the triggering direction and then locked by means of the fourth torque against accidental switching on.
- the third torque is preferably greater in magnitude than the fourth torque.
- the first drive unit may then be designed for a short-time operation with a first power and the second drive unit for a continuous operation with a second power, wherein the first power is greater than the second power.
- the first drive unit or each of the drive units comprises an electromagnet with an excitation coil and a movable armature, which is coupled to the lever.
- an electromagnetic drive is characterized by high reliability with small size and easy controllability.
- other electromagnetic drives e.g. Electric motors, or non-electromagnetic drives, e.g. hydraulic drives or pneumatic drives are used.
- a good coupling between the armature and the lever is possible in that the armature is pivotally mounted in the lever.
- a special compactness of the triggering device is thereby achieved, that the armature is at least partially disposed in a cavity formed by the coil.
- the triggering device according to the invention is preferably used for switching off, preferably also for locking against unintentional restarting of circuit breakers on ships, in particular Navy ships.
- FIG. 1 shows a triggering device according to the invention in the rest position
- FIG 2 shows the triggering device of FIG 1 in the release position.
- a triggering device 1 shown schematically in FIG. 1 for a ship's circuit breaker, not shown, comprises a movable triggering element 2 for triggering a disconnection of the circuit breaker and for subsequent locking of the circuit breaker against being switched on again.
- the triggering element 2 is in this case designed as a rotatable roller, which, for example, with a switch mechanism, e.g. a trip shaft of the switch is coupled.
- a drive device 3 moves the triggering element 2 in a triggering direction 20 from a rest position shown in FIG. 1 into a triggering position shown in FIG.
- the drive device 3 comprises two drive units 4, 5, each of which comprises an electromagnet with an excitation coil 6, which is only hinted at in section, and an associated movable armature 7, which at least partially disposed in a cavity 9 formed by the exciting coil 6.
- a drive mechanism 8 connects the armatures 7 of the electromagnets with the triggering element 2 and converts the movements of the armatures 7 of the electromagnets into a movement of the triggering element 2.
- the drive mechanism 8 comprises a lever 10 having a first arm 11 and a second arm 12, the two arms 11, 12 being rigidly and in line with each other.
- the lever 10 is pivotally mounted about an axis 13 in a holder 16 which is connected via a bottom plate 15 rigidly connected to the exciter coils 6 and the switch not shown in detail.
- the switch and the triggering device 1 form a structural unit, which in turn is connected via shock-absorbing intermediate elements fixed to the ship structure of the ship.
- the drive units 4, 5 can be surrounded by a common housing not shown here.
- the armature 7 of the first drive unit 4 is pivotable about an axis 14 in the first arm 11 and the armature 7 of the second drive unit 5 is pivotally mounted about an axis 14 in the second arm 12.
- roller-shaped release element 2 is rotatably mounted in the first arm 11, and that on the bracket 16 remote from the end of the first arm eleventh
- a spring 17 fastened on the armature 7 of the drive unit 4 and on the bottom plate 15 serves to hold the lever 10 in the rest position shown in FIG.
- a shock effect on the triggering device 1 opposite to the triggering direction 20 leads to a movement of the holder 16, the exciter coils 6 and the bottom plate 13 in the direction of the shock. This movement works the pivot axis 13 of the lever 10 a force in the direction of the shock, whereby the lever 10 is moved in the direction of the shock action. Due to the inertia of the masses of the armature 7 and the trigger element 2 and by the spring 17, however, forces now act on the arms 11, 12.
- the forces acting on the arm 11 thereby exert a total of a first torque Ml, the direction of rotation in FIG is illustrated by a designated Ml arrow, the lever 10 from.
- This torque would move the lever 10 about the axis 13 in the release direction 20 and lead to a triggering of the switch.
- the torque M1 is compensated by a second torque M2 whose direction of rotation is illustrated in FIG. 1 by an arrow labeled M2, which is exerted on the lever 10 by the forces acting on the arm 12.
- the torque Ml and the torque M2 are directed opposite.
- the arrangement of the armature 7 and the triggering element 2 on the lever 10 and their masses are in this case selected such that the torques Ml and M2 are approximately equal in terms of their amount.
- the triggering device 1 is thus shock-resistant to a high degree.
- the first drive unit 4 is used for operational triggering of the switch and is designed for a short-term operation at high power (eg 100 - 200 W).
- the second drive unit 5 serves to lock against unintentional switching on and is designed for continuous operation at low powers (eg 10-20 W).
- the first drive unit 4 and the second drive unit 5 are independently controllable for this purpose.
- a third torque M3 the direction of rotation is illustrated in FIG 1 using the arrow marked M3
- a fourth torque M4 whose rotation in FIG 1 using the M4 indicated arrows, exercisable on the lever 10, wherein the third and the fourth torque M3 and M4 are the same direction.
- the two drive units 4, 5 can then, for example, be controlled such that they simultaneously exert their respective torque M3 or M4 on the lever 10, the two torques M3, M4 being the same.
- the triggering operation i. the movement of the triggering element 2 in the release direction 20, be accelerated.
- the two drive units 4, 5 can also be controlled in such a way that they exert a torque on the lever 10 one behind the other. With the third torque M3 then the switch can be triggered and then locked by means of the fourth torque M4 against accidental switching on.
- the third torque M3 exerted by the first drive unit 4 on the lever 10 is preferably larger in magnitude than the fourth force exerted by the second drive unit 5 on the lever 10 Torque M4.
- the two drive units 4, 5 can also be controlled in such a way that, in chronological succession, they first jointly apply the third and the fourth torque and then only the fourth torque to the lever. This allows the switch to be locked after a particularly rapid release against a restart. By additional weights on the arms 11, 12 can be adjusted specifically the desired torques.
- the triggering device 1 is characterized by using a lever 10 with two arms 11, 12 in comparison to a lever with only one arm by a particularly high shock resistance.
- a particularly fast release of the switch can be achieved by the triggering device 1 and a subsequent locking against reclosing be enabled. Since these two functions act on the switch via only a single, common triggering element 2, the triggering device 1 can be made particularly compact and on the side of the switch the switch mechanism actuated by the triggering element 2 can be made particularly simple and thus also particularly shock-resistant.
- the triggering device 1 is preferably suitable for switching off, preferably also for locking against unintentional restarting of circuit breakers on ships, in particular naval ships.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020107006583A KR101225857B1 (ko) | 2007-09-28 | 2008-09-17 | 스위치, 특히 전원 스위치의 활성화를 위한 내충격성 활성화 장치 |
EP08804293.2A EP2193535B1 (de) | 2007-09-28 | 2008-09-17 | Schockfeste auslöseeinrichtung zur auslösung eines schalters, insbesondere eines leistungsschalters |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007046703.8 | 2007-09-28 | ||
DE102007046703 | 2007-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009043718A1 true WO2009043718A1 (de) | 2009-04-09 |
Family
ID=40001416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/062338 WO2009043718A1 (de) | 2007-09-28 | 2008-09-17 | Schockfeste auslöseeinrichtung zur auslösung eines schalters, insbesondere eines leistungsschalters |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2193535B1 (de) |
KR (1) | KR101225857B1 (de) |
DE (1) | DE102008011595A1 (de) |
WO (1) | WO2009043718A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR501415A (fr) * | 1919-07-04 | 1920-04-14 | Const Electr De Delle Sa Des A | Perfectionnement aux relais électriques à maxima |
US6486758B1 (en) * | 2000-11-21 | 2002-11-26 | Eaton Corporation | Shock-resistant circuit breaker with inertia lock |
EP1772886A2 (de) * | 2005-10-06 | 2007-04-11 | Eaton Corporation | Stossfeste Unterspannungs-Auslösevorrichtung |
DE102007003242B3 (de) * | 2007-01-23 | 2008-09-04 | Siemens Ag | Elektromagnetische Auslösevorrichtung für einen Schutzschalter und Schutzschalter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6155317U (de) | 1984-09-14 | 1986-04-14 | ||
KR970003346B1 (ko) * | 1993-09-27 | 1997-03-17 | 대우전자 주식회사 | 일체형 전원스위치 |
KR970060648A (ko) * | 1996-01-17 | 1997-08-12 | 김광호 | 스위치 입력 확인 장치 및 그 제어 방법 |
US7076976B1 (en) * | 2005-04-11 | 2006-07-18 | Ilan Goldman | Inertial blocking mechanism |
-
2008
- 2008-02-28 DE DE102008011595A patent/DE102008011595A1/de not_active Withdrawn
- 2008-09-17 KR KR1020107006583A patent/KR101225857B1/ko active IP Right Grant
- 2008-09-17 EP EP08804293.2A patent/EP2193535B1/de active Active
- 2008-09-17 WO PCT/EP2008/062338 patent/WO2009043718A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR501415A (fr) * | 1919-07-04 | 1920-04-14 | Const Electr De Delle Sa Des A | Perfectionnement aux relais électriques à maxima |
US6486758B1 (en) * | 2000-11-21 | 2002-11-26 | Eaton Corporation | Shock-resistant circuit breaker with inertia lock |
EP1772886A2 (de) * | 2005-10-06 | 2007-04-11 | Eaton Corporation | Stossfeste Unterspannungs-Auslösevorrichtung |
DE102007003242B3 (de) * | 2007-01-23 | 2008-09-04 | Siemens Ag | Elektromagnetische Auslösevorrichtung für einen Schutzschalter und Schutzschalter |
Also Published As
Publication number | Publication date |
---|---|
DE102008011595A1 (de) | 2009-04-16 |
EP2193535B1 (de) | 2016-08-03 |
EP2193535A1 (de) | 2010-06-09 |
KR20100046272A (ko) | 2010-05-06 |
KR101225857B1 (ko) | 2013-01-24 |
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