WO1998034258A2 - Fast connection switching device - Google Patents
Fast connection switching device Download PDFInfo
- Publication number
- WO1998034258A2 WO1998034258A2 PCT/DE1998/000199 DE9800199W WO9834258A2 WO 1998034258 A2 WO1998034258 A2 WO 1998034258A2 DE 9800199 W DE9800199 W DE 9800199W WO 9834258 A2 WO9834258 A2 WO 9834258A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching
- lever
- contacts
- switching device
- lock
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
Definitions
- the invention relates to a switching device with a lever system with a switching lever for opening and closing fixed contacts with movable contacts and with a movable switch element, the movement of which is coupled with the opening and closing of the fixed contacts and movable contacts.
- FIG. 5 Such a switching device has been available on the electronics market for some time. According to FIG. 5, it has a contact slide 21 with movable contact pieces coupled to it
- the switching device is equipped with a lever system, the switching lever 25 of which engages at the upper end of the contact slide 21 and presses it down to open the contacts 22, 23 against the action of a contact load spring 26 acting at the lower end. The latter causes the contacts 22, 23 to close after the contact slide 21 is relieved from the switching lever 25.
- a solution is disclosed in DE 92 06 137 Ul. DE 195 26 591 AI also disclosed an electrical switch with a spring-loaded lever system, which here acts on a contact lever with a movable contact for switching on. When switched on, the link between the lever system and the contact remains. The contact point is closed by means of a main contact force as a result of reduced action of the lever system.
- the known switching devices are usually circuit breakers for switching and protecting motors and other connections. users. They are manufactured in different sizes, ie with different switching capacities.
- the actuation ie the switching on or off of the circuit breakers of different sizes is possible depending on the version with manual or remote control via rocker, rocker arm or rotary toggle.
- the force When switching on or off, the force must be transmitted from the actuating element to the movable contact via the switch lock.
- the slow opening or closing of the moving contact must be prevented due to the increased contact erosion and the resulting shortening of the service life.
- circuit breakers with snap characteristics have been built into circuit breakers for higher switching capacities, by means of which the contacts are quickly closed or opened.
- Circuit breakers for smaller switching capacities incorporate structurally simple switch locks without snap characteristics. Fast switching is achieved here by unlatching the key switch when actuated.
- the decisive factor for the rapid switching off is the excess force of the opening springs in the switch lock compared to the level of force caused by the contact load springs.
- These circuit breakers can be switched on quickly in that a steep increase in torque must be overcome with the actuating element, for example the rocker arm, before the contacts close. It is disadvantageous that depending on the actuating element, the type of actuation and the actuation speed, the rapid activation is no longer guaranteed.
- the invention is therefore based on the object of improving a switching device of the type mentioned above in such a way that when switching on, the contacts are quickly closed regardless of the actuating element, the type of actuation and the actuating speed on the rocker arm, on the rocker or on the rotary knob.
- the object is achieved by a lock which first locks the switch element to close the contacts in order to create a free space for the movement stroke for the closing process between the switch lever and the switch element, which is initiated by unlocking the lock.
- FIG. 2 shows the switch lock according to FIG. 1 with the contacts still open during the closing process
- FIG. 3 shows the switch lock according to FIG. 1 in the unlocked switching position with the contacts closed
- FIG. 4 shows the switching lock according to FIG. 1 in the switch position ON.
- Figure 1 shows a switch lock 1 of an electrical switching device, such as a contactor or circuit breaker.
- the switch lock 1 used to switch ON and OFF contacts not shown here is shown in the OFF position.
- the switch lock 1 is composed essentially of a circuit board 2, a tooth rocker 3 as an actuating element and a lever system that is operatively connected to it, which comprises a pawl 4, a pawl lever 5, a switch lever 6 with a torsion spring 7 and a tension spring 8 as an opening spring.
- the pawl lever 5 is unlocked, ie it is not in engagement with the pawl 4.
- a contact slide can be used, for example.
- Figure 4 shows the final position after completion of the switch-on, in which the return spring 12 is biased, so that when the switch lock 1 is triggered, the lock 11 is returned to the position described in Figure 1.
- the distance a is dimensioned such that the articulation lever 10 and with it the movable contacts after unlocking the lock 11 driven by the contact load springs can be closed quickly and independently of the actuation speed and lock mechanism.
Landscapes
- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Keying Circuit Devices (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98909276A EP0956578B1 (en) | 1997-02-03 | 1998-01-22 | Fast connection switching device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19703977.4 | 1997-02-03 | ||
DE1997103977 DE19703977C1 (en) | 1997-02-03 | 1997-02-03 | Rapid switching circuit breaker e.g. for motor protection |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998034258A2 true WO1998034258A2 (en) | 1998-08-06 |
WO1998034258A3 WO1998034258A3 (en) | 1998-11-05 |
Family
ID=7819153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000199 WO1998034258A2 (en) | 1997-02-03 | 1998-01-22 | Fast connection switching device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0956578B1 (en) |
CN (1) | CN1152402C (en) |
DE (1) | DE19703977C1 (en) |
WO (1) | WO1998034258A2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103050343B (en) * | 2011-10-14 | 2015-12-16 | 上海电科电器科技有限公司 | Rapid switching-on mechanism |
AT512269A2 (en) * | 2011-11-16 | 2013-06-15 | Eaton Ind Austria Gmbh | SWITCHGEAR |
CN103337426B (en) * | 2013-05-31 | 2015-12-09 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker with quick-acting closure |
EP2854152B1 (en) * | 2013-09-25 | 2016-11-02 | Siemens Aktiengesellschaft | Switching device with a mechanism for rapid activation |
CN105359246B (en) * | 2013-09-25 | 2018-01-02 | 西门子公司 | Switchgear with the device for connecting stepwise |
DE102016217197A1 (en) * | 2016-09-09 | 2018-03-15 | Siemens Aktiengesellschaft | Switch lock for a low-voltage protection device |
DE102016217225A1 (en) * | 2016-09-09 | 2018-03-15 | Siemens Aktiengesellschaft | Switch lock for a low-voltage protection device |
US11437202B2 (en) * | 2020-06-29 | 2022-09-06 | Rockwell Automation Switzerland Gmbh | Switching device with lock open component |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242664A1 (en) * | 1986-04-23 | 1987-10-28 | Lindner GmbH Fabrik elektrischer Lampen und Apparate | Manually-operated electrical switch |
EP0454963A1 (en) * | 1990-04-30 | 1991-11-06 | Felten & Guilleaume Energietechnik AG | Switching mechanism for low tension switchgear |
EP0568881A1 (en) * | 1992-05-07 | 1993-11-10 | Siemens Aktiengesellschaft | Power switch with a switch latch |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19526591B4 (en) * | 1995-07-21 | 2005-04-21 | Abb Patent Gmbh | Electric switch |
-
1997
- 1997-02-03 DE DE1997103977 patent/DE19703977C1/en not_active Expired - Fee Related
-
1998
- 1998-01-22 EP EP98909276A patent/EP0956578B1/en not_active Expired - Lifetime
- 1998-01-22 CN CNB988013266A patent/CN1152402C/en not_active Expired - Fee Related
- 1998-01-22 WO PCT/DE1998/000199 patent/WO1998034258A2/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242664A1 (en) * | 1986-04-23 | 1987-10-28 | Lindner GmbH Fabrik elektrischer Lampen und Apparate | Manually-operated electrical switch |
EP0454963A1 (en) * | 1990-04-30 | 1991-11-06 | Felten & Guilleaume Energietechnik AG | Switching mechanism for low tension switchgear |
EP0568881A1 (en) * | 1992-05-07 | 1993-11-10 | Siemens Aktiengesellschaft | Power switch with a switch latch |
Also Published As
Publication number | Publication date |
---|---|
EP0956578A2 (en) | 1999-11-17 |
CN1239584A (en) | 1999-12-22 |
EP0956578B1 (en) | 2001-07-25 |
DE19703977C1 (en) | 1998-05-14 |
CN1152402C (en) | 2004-06-02 |
WO1998034258A3 (en) | 1998-11-05 |
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