EP2471084B1 - Aufsatzmodul zum erfassen eines schaltzustandes eines elektromagnetischen schaltgeräts - Google Patents

Aufsatzmodul zum erfassen eines schaltzustandes eines elektromagnetischen schaltgeräts Download PDF

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Publication number
EP2471084B1
EP2471084B1 EP10732992.2A EP10732992A EP2471084B1 EP 2471084 B1 EP2471084 B1 EP 2471084B1 EP 10732992 A EP10732992 A EP 10732992A EP 2471084 B1 EP2471084 B1 EP 2471084B1
Authority
EP
European Patent Office
Prior art keywords
switching
attachment module
plunger
electromagnetic switching
switching device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10732992.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2471084A1 (de
Inventor
Michaela Koller
Helmut Kraus
Manuel Geitner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2471084A1 publication Critical patent/EP2471084A1/de
Application granted granted Critical
Publication of EP2471084B1 publication Critical patent/EP2471084B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/08—Indicators; Distinguishing marks
    • 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
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/465—Self-contained, easily replaceable microswitches
    • 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
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators

Definitions

  • the invention relates to an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection to a switching element, in particular a microswitch.
  • Electromagnetic switching devices in the context of the present invention are contactors, disconnectors, power relays and circuit breakers.
  • electromagnetic switching devices in particular for contactors, it is necessary in a large number of applications to detect the actual switching state of the electromagnetic switching device, in contrast to a driving state of the electromagnetic switching device, in order to be able to evaluate it elsewhere.
  • a switching state detection takes place by means of a detection device.
  • a mechanical switching contact is arranged in the housing, which changes its switching state when transferring the plunger from one to the other end position.
  • the switching contact is connected via lines to an evaluation device, so that the switching position of the switching contact and thus the switching state of the electromagnetic switching device can be detected by the evaluation device.
  • the detection device is its own, from the electromagnetic switching device different device, for example a so-called auxiliary switch.
  • a detection device for detecting the switching state of an electromagnetic switching device which has a housing in which a plunger is movably mounted.
  • the plunger is movable between two mechanical end positions, wherein the end position of the plunger corresponds to the switching state of the electromagnetic switching device.
  • a sensor device is arranged, from which it can be detected, in which of the end positions the plunger is located, and from which a corresponding electrical signal can be emitted.
  • the sensor device is designed such that the position of the plunger can be detected by it, without touching the plunger.
  • a tapping connection is also arranged, which is accessible from outside the housing and over which the electrical signal emitted by the sensor device can be tapped off as such.
  • a conditioning circuit is arranged on the housing, which prepares the electrical signal emitted by the sensor device in a message and outputs the message via a communication port.
  • a disadvantage of the prior art is that only two different switching states, the on and the off state, can be displayed via the detection device.
  • the object of the present invention is to provide a top module for detecting a switching state of an electromagnetic switching device, which is designed such that it reflects three possible switching states of the switching device, the on and off state and the switching state in welded contacts.
  • an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection with a switching element, in particular a microswitch.
  • the invention is characterized in that the plunger has a snap hook at the other end, which communicates three possible switching positions of the electromagnetic switching device to the microswitch.
  • the electromagnetic switching device may be a contactor, which has a coil which can be acted upon by a switching current IS. When the switching current IS is applied to the coil, it attracts an armature. When the switching current IS is interrupted, the armature moves away from the coil due to a restoring spring force. The armature is connected to a plunger.
  • the plunger is also attracted to the coil. Due to the movement of the plunger, at least one load contact is closed so that a load current IL can flow. Conversely, when the switching current IS is interrupted, the load contact is opened again.
  • the electromagnetic switching device may for example also be a power switch.
  • the switching current IS is identical to the load current IL.
  • the coil in this case attracts the armature when the load current IL becomes too large. Due to the tightening of the armature a switching lock is released, which moves the plunger in a position in which the load contact remains open.
  • the position of the plunger is designed so that it corresponds to the state of the load contact and thus with the switching state of the electromagnetic switching device, regardless of the specific configuration of the electromagnetic switching device.
  • the plunger three possible switching positions of the electromagnetic switching device, the input and exhibition and the switching position in welded contacts indicate.
  • the switching position of the contactor is transmitted via the plunger as a mechanical switching position display directly into the module.
  • a switching element in particular a micro switch, operated in the attachment module.
  • the drive signal of the respective other contactor is guided via the switching element in the attachment module of the first contactor.
  • the locking is thus no longer via auxiliary contacts of the contactor, but via the switching element in the module. This has the advantages that the auxiliary contact in the contactor is at the customer's free disposal, and he no longer has to make any wiring.
  • the devices are also pre-assembled in total, so that the potential for errors can be minimized.
  • the plunger is connected at one end to the microswitch and at the other end has a snap hook, which occupies three different positions relative to a reference edge to the different switching states, the on and off state and the switching state to show welded contacts.
  • the attachment module has a communication cable, which enables transmission of activation signals between two attachment modules.
  • the drive signal of a contactor is guided via the switching element in the attachment module of the other contactor.
  • Fig. 1 shows an inventive attachment module 1, which has an upper housing part 2, which is fastened via locking elements 3 on the outer housing 4. From the upper housing part 2 protrudes into the housing interior, a guide unit 5, in which a plunger 6 is mounted.
  • the attachment module 1 sits on a protective device (not shown), preferably a contactor, wherein the attachment module 1 and the protective device via a snap hook 7 are in operative connection with each other when it comes to the triggering process.
  • the plunger 6 is actuated during the tripping operation via a spring element 8 a switching element 9.
  • the switching element 9 has connection elements 11 for printed circuit boards.
  • plug connections 12 and further electrical components 13 are arranged.
  • Fig. 2 shows the attachment module 1 in a particularly advantageous embodiment with integrated communication cable 14, the transmission of drive signals between two Attachment modules allows.
  • the drive signal of a contactor via the switching element in the attachment module of the other contactor are performed.
  • Fig. 3 are the three possible switching states, the on and off state and the switching state in welded contacts in the electromagnetic switching device, shown that are communicated via the snap hook 7 on the plunger 6 the switching element 9.
  • the snap hook 7 changes its position relative to a reference edge 15 corresponding to the three possible switching positions in the electromagnetic switching device.
  • the snap hook 7 assumes its position relative to the reference edge 15 according to the direction of movement 16 in three defined positions 17, 18, 19 and thereby indicates the on and off state and the switching state in welded contacts.
  • the present invention offers two key advantages. On the one hand, the three possible switching positions of an electromagnetic switching device, the on and off state and the switching state in welded contacts are precisely displayed by the attachment module according to the invention. On the other hand, no auxiliary contact is needed for the mutual locking of two electromagnetic switching devices, so that the wiring effort is reduced and the auxiliary contact can be used elsewhere.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
EP10732992.2A 2009-08-24 2010-07-16 Aufsatzmodul zum erfassen eines schaltzustandes eines elektromagnetischen schaltgeräts Active EP2471084B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009038671A DE102009038671A1 (de) 2009-08-24 2009-08-24 Aufsatzmodul zum Erfassen eines Schaltzustandes eines elektromagnetischen Schaltgeräts
PCT/EP2010/060340 WO2011023458A1 (de) 2009-08-24 2010-07-16 Aufsatzmodul zum erfassen eines schaltzustandes eines elektromagnetischen schaltgeräts

Publications (2)

Publication Number Publication Date
EP2471084A1 EP2471084A1 (de) 2012-07-04
EP2471084B1 true EP2471084B1 (de) 2016-08-31

Family

ID=42732576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10732992.2A Active EP2471084B1 (de) 2009-08-24 2010-07-16 Aufsatzmodul zum erfassen eines schaltzustandes eines elektromagnetischen schaltgeräts

Country Status (7)

Country Link
EP (1) EP2471084B1 (it)
KR (1) KR101560218B1 (it)
CN (1) CN102484018B (it)
BR (1) BR112012004025B1 (it)
DE (1) DE102009038671A1 (it)
IN (1) IN2012DN00917A (it)
WO (1) WO2011023458A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101529588B1 (ko) 2013-10-18 2015-06-17 엘에스산전 주식회사 전자접촉기
CN104241031B (zh) * 2014-06-13 2016-09-07 漳州市锦成电力设备有限公司 一种带故障显示的交流接触器
DE202020107235U1 (de) 2020-12-14 2021-01-14 Abb Schweiz Ag Schützmodul und Schützmodulanordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8223377U1 (de) * 1982-08-19 1982-10-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Aufschnappbarer Hilfsschalter
US4762969A (en) * 1986-11-18 1988-08-09 Bestquint Limited Remotely pressure-operable electrical switch
FR2677806B1 (fr) * 1991-06-17 1994-05-06 Telemecanique Dispositif interrupteur auxiliaire pour appareil interrupteur principal.
EP1372177A3 (en) * 2002-06-13 2005-02-23 Circuit Breaker Industries Limited The remote indication of a circuit breaker status
DE102007002176B4 (de) 2007-01-15 2018-07-19 Siemens Aktiengesellschaft Erfassungseinrichtung zum Erfassen des Schaltzustands eines elektromagnetischen Schaltgeräts
JP2009123420A (ja) * 2007-11-13 2009-06-04 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器のリモート操作装置
EP2169699A1 (de) * 2008-09-25 2010-03-31 Siemens Aktiengesellschaft Elektrischer Schalter

Also Published As

Publication number Publication date
IN2012DN00917A (it) 2015-04-03
BR112012004025A2 (pt) 2016-03-29
WO2011023458A1 (de) 2011-03-03
EP2471084A1 (de) 2012-07-04
KR101560218B1 (ko) 2015-10-14
BR112012004025B1 (pt) 2019-11-19
DE102009038671A1 (de) 2011-03-24
KR20120081102A (ko) 2012-07-18
CN102484018B (zh) 2014-12-17
CN102484018A (zh) 2012-05-30

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