WO2001013397A1 - Electromagnetic switching device - Google Patents
Electromagnetic switching device Download PDFInfo
- Publication number
- WO2001013397A1 WO2001013397A1 PCT/DE2000/002710 DE0002710W WO0113397A1 WO 2001013397 A1 WO2001013397 A1 WO 2001013397A1 DE 0002710 W DE0002710 W DE 0002710W WO 0113397 A1 WO0113397 A1 WO 0113397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- switching device
- auxiliary switch
- contact carrier
- sprung
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
Definitions
- the present invention relates to an electromagnetic switching device having at least one drive coil which, when acted upon by a pull-in current, shifts a contact carrier in an actuating direction and thus actuates at least one main contact, the contact carrier also actuating an auxiliary switch.
- Electromagnetic switching devices in particular contactors, often have auxiliary switches which are actuated together with the main contact or the main contacts.
- the auxiliary switches are therefore comparatively expensive.
- the object of the present invention is to design an electromagnetic switching device in such a way that the auxiliary switch is no longer exposed to the mechanical loads occurring when the contact carrier is actuated.
- the object is achieved in that the auxiliary switch is released by moving the contact carrier from a sprung rest position into a sprung actuation position.
- the lever can be designed, for example, as an angle lever or as a bar lever.
- the lever can also be designed as a one- or two-sided lever.
- the lever has a transmission ratio that is greater than one, in particular at least two, a large opening of the auxiliary switch results even when the auxiliary switch is actuated later.
- the auxiliary switch can, for example, be connected to a current control arranged upstream of the drive coil, in order to switch it from supplying the pull-in current to supplying a considerably smaller holding current.
- the switching device has no control electronics, a switchover from pull-in to holding current can be achieved in a simple manner if the auxiliary switch is closed in the sprung-in rest position and opened in the sprung-out actuation position, the drive coil has two partial windings and the auxiliary switch has one of the Partial windings is connected in series.
- 1 shows a block diagram of an electromagnetic switching device
- FIG. 4 shows a further block diagram of an electromagnetic switching device.
- an electromagnetic switching device 1 has a drive coil 2.
- the drive coil 2 is acted upon by a starting current I A. This then moves a contact carrier 3 into a loading direction of activity x. As a result, a main contact 4 and an auxiliary switch 5 are actuated.
- the auxiliary switch 5 is connected to a current control 6, which is arranged upstream of the drive coil 2. Due to the actuation of the auxiliary switch 5, the current control 6 is switched over so that it only applies a holding current I H to the drive coil 2 which is considerably smaller than the starting current I A.
- the contact carrier 3 acts on the auxiliary switch 5 via a lever 7.
- the lever 7 is designed as a two-sided lever 7 according to FIGS. But it could also be designed as a one-sided lever. 2, the lever 7 is designed as an angle lever 7, according to FIG. 3 as a bar lever 7.
- the auxiliary switch 5 has a switch spring 8 which presses an actuating element 9 of the auxiliary switch 5 against the lever 7.
- a restoring spring 10 also acts on the lever 7.
- the force exerted on the actuating element 9 by the restoring spring 10 via the lever 7 is greater than the force exerted on the actuating element 9 by the switch spring 8.
- the contact carrier 3 is not displaced, the actuating element 9 therefore remains in a rest position in which the switch spring 8 is compressed.
- the return spring 10 is forcibly compressed and the lever 7 is released from the actuating element 9.
- the actuating element 9 is thus released so that the auxiliary switch 5 can pass into an actuating position in which the switch spring 8 is extended.
- the translation of the lever 7, ie the ratio of its arm arms, can be selected as required. However, the translation of the lever 7 is preferably greater than one, in particular at least two. Because this makes it late despite one Operating the auxiliary switch 5, that is to say operating the auxiliary switch 5 only shortly before the main contact 4 is operated, makes it possible to ensure a large opening travel of the auxiliary switch 5. An exact switching time of the auxiliary switch 5 is also ensured.
- the switching device 1 has no control electronics in the form of a current control 6. Instead, the drive coil 2 has two partial windings 2 2 ".
- the contact carrier 3 is moved in the actuation direction x when the starting current I A is applied .
- the other partial winding 2' is acted upon by the holding current I H
- the auxiliary switch 5 is designed as a make contact 5. It is therefore closed in the sprung-in rest position and opened in the sprung-out actuation position. It is connected in series with the one partial winding 2 V. When it is opened, it switches off this partial winding 2 ' Without control electronics, a simple switchover from the pull-in current I A to the holding current I H is guaranteed.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (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 |
---|---|---|---|
DE50004181T DE50004181D1 (en) | 1999-08-12 | 2000-08-11 | ELECTROMAGNETIC SWITCHGEAR |
EP00963901A EP1203390B1 (en) | 1999-08-12 | 2000-08-11 | Electromagnetic switching device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19938111.9 | 1999-08-12 | ||
DE19938111 | 1999-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001013397A1 true WO2001013397A1 (en) | 2001-02-22 |
Family
ID=7918088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/002710 WO2001013397A1 (en) | 1999-08-12 | 2000-08-11 | Electromagnetic switching device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1203390B1 (en) |
CN (1) | CN1369102A (en) |
DE (1) | DE50004181D1 (en) |
WO (1) | WO2001013397A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103984245B (en) * | 2014-04-01 | 2017-01-25 | 中国科学院宁波材料技术与工程研究所 | Multilevel electromagnetic control device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2791659A (en) * | 1953-08-06 | 1957-05-07 | Allen Bradley Co | Auxiliary contact switch |
DE1921232A1 (en) * | 1968-04-25 | 1969-11-20 | Omron Tateisi Electronics Co | Electromagnetic device |
EP0186393A2 (en) * | 1984-12-24 | 1986-07-02 | Matsushita Electric Works, Ltd. | Remotely controllable relay |
EP0381542A1 (en) * | 1989-02-03 | 1990-08-08 | Telemecanique | Protected phase-reversal contactor using a multifunctional transmission system for the control of confirmation switches |
EP0431994A1 (en) * | 1989-12-08 | 1991-06-12 | Telemecanique | Adapter for auxiliary contact casing |
EP0511042A1 (en) * | 1991-04-22 | 1992-10-28 | Schneider Electric Sa | Electromechanic switchgear with additive frontal block |
-
2000
- 2000-08-11 WO PCT/DE2000/002710 patent/WO2001013397A1/en active IP Right Grant
- 2000-08-11 DE DE50004181T patent/DE50004181D1/en not_active Expired - Lifetime
- 2000-08-11 CN CN00811436A patent/CN1369102A/en active Pending
- 2000-08-11 EP EP00963901A patent/EP1203390B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2791659A (en) * | 1953-08-06 | 1957-05-07 | Allen Bradley Co | Auxiliary contact switch |
DE1921232A1 (en) * | 1968-04-25 | 1969-11-20 | Omron Tateisi Electronics Co | Electromagnetic device |
EP0186393A2 (en) * | 1984-12-24 | 1986-07-02 | Matsushita Electric Works, Ltd. | Remotely controllable relay |
EP0381542A1 (en) * | 1989-02-03 | 1990-08-08 | Telemecanique | Protected phase-reversal contactor using a multifunctional transmission system for the control of confirmation switches |
EP0431994A1 (en) * | 1989-12-08 | 1991-06-12 | Telemecanique | Adapter for auxiliary contact casing |
EP0511042A1 (en) * | 1991-04-22 | 1992-10-28 | Schneider Electric Sa | Electromechanic switchgear with additive frontal block |
Also Published As
Publication number | Publication date |
---|---|
DE50004181D1 (en) | 2003-11-27 |
EP1203390B1 (en) | 2003-10-22 |
CN1369102A (en) | 2002-09-11 |
EP1203390A1 (en) | 2002-05-08 |
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