EP0316295A2 - Déclencheur à aimant de maintien - Google Patents

Déclencheur à aimant de maintien Download PDF

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Publication number
EP0316295A2
EP0316295A2 EP88890235A EP88890235A EP0316295A2 EP 0316295 A2 EP0316295 A2 EP 0316295A2 EP 88890235 A EP88890235 A EP 88890235A EP 88890235 A EP88890235 A EP 88890235A EP 0316295 A2 EP0316295 A2 EP 0316295A2
Authority
EP
European Patent Office
Prior art keywords
window
armature
pole plates
legs
holding magnet
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.)
Ceased
Application number
EP88890235A
Other languages
German (de)
English (en)
Other versions
EP0316295A3 (fr
Inventor
Klaus Dr. Rotter
Gerhard Amon
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.)
Felten & Guilleaume Fabrik Elektrischer Apparate AG
Felten and Guilleaume Austria AG
Original Assignee
Felten & Guilleaume Fabrik Elektrischer Apparate AG
Felten and Guilleaume Austria AG
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 Felten & Guilleaume Fabrik Elektrischer Apparate AG, Felten and Guilleaume Austria AG filed Critical Felten & Guilleaume Fabrik Elektrischer Apparate AG
Publication of EP0316295A2 publication Critical patent/EP0316295A2/fr
Publication of EP0316295A3 publication Critical patent/EP0316295A3/fr
Ceased legal-status Critical Current

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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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature

Definitions

  • the invention relates to a holding magnet release, in particular for residual current circuit breakers, with a yoke body which is accommodated in a housing and which consists of two L-shaped pole plates which are connected to one another with their longer legs, optionally via an intermediate plate, the legs of the pole plates resting against one another a window for receiving a coil winding is provided and the short legs of the pole plates are assigned a permanent magnet, preferably rotatably, and with a spring-loaded pivotable armature, which in its closed position rests on an armature support provided in the area of the window and its pivot axis in the area of the short leg of the pole plates.
  • Holding magnet releases of the type considered here are known, for example, from AT-B-378 862 and 381 559.
  • the yoke body In the case of holding magnet triggers of this type, it is also known to form the yoke body from two L-shaped pole plates which are connected to one another by means of an intermediate plate with their longer legs so that the shorter legs protrude on both sides. The result is a yoke body which is essentially T-shaped in plan and to whose T-bar a permanent magnet, as is known from AT-B-381 559, can be attached.
  • the anchor assigned to this yoke body is e.g. as described in AT-B-378 862, designed and mounted on the yoke body.
  • anchor support The free end of the anchor rests on a flat surface (anchor support).
  • anchor support ground contact surfaces for the bearing end of the armature are provided on the short legs of the pole plates. The surfaces of the armature facing the mentioned support surfaces and the armature support are also ground.
  • the release power depends on the cross section of the web, which limits the window provided in the yoke body, which receives the coil winding, in the area of the armature support. Since the anchor support, which is ground flat, is provided in this area, it has so far not been possible to achieve any precisely defined web cross-sections and therefore no defined release outputs.
  • the aim is to keep the release power as low as possible with holding magnet releases.
  • the object of the invention is to achieve a precisely defined cross-section of the web and thus a precisely defined tripping power in the case of a holding magnet release of the type mentioned at the beginning of the armature support.
  • the anchor support is arranged on an elevation provided in the area of the window, which is shorter than the width of the window measured in the direction of the longitudinal extension of the longer legs of the pole plates.
  • the cross section of the web provided on both sides of the elevation, which delimits the window in the yoke body on the armature side, is not changed when the anchor support is ground. It is therefore in your hand to set the triggering power to the desired value by choosing the dimensions of the web.
  • Another advantage of the design according to the invention is that the rest of the construction of the yoke body and the armature and the components associated therewith need not be changed compared to the previously known designs of holding magnet releases.
  • the elevation is symmetrical to the central plane of the window is aligned. In this embodiment it is ensured that the saturation required for triggering is achieved in both polarities of an alternating current at the same current strengths.
  • the holding magnet release according to the invention will be designed in such a way that the surface of the armature remote from the pivot axis of the armature projects beyond the armature support on all sides.
  • This preferred variant of the invention ensures that the armature support is completely covered even by displacements of the armature by its surface assigned to the armature support, so that the surface effective for the magnetic flux remains constant in this case as well.
  • the yoke body 1 consists of two L-shaped pole plates 2 and 3.
  • the pole plates 2 and 3 are on their longer legs 4 and 5 with the interposition of an intermediate plate 1 'with a thickness of, for example, 0.15 mm to each other in the plan essentially T-shaped yoke body 1 connected.
  • the T-bar of the yoke body 1 is formed by the shorter legs 6 and 7 of the pole plates 2 and 3.
  • a window 8 is provided, which serves to receive a coil winding, not shown.
  • Another window 9 provided in the longer legs 4 and 5 for both pole sheets 2 and 3 serves to hold the yoke body 1 in a housing.
  • an extension is provided in the housing onto which the yoke body 1 is pushed.
  • the armature support 10 is formed by an elevation 11 which is arranged symmetrically to the window 8 and whose width is smaller than the width B of the window 8 measured in the longitudinal direction of the longer legs 4 and 5.
  • Elevations 12 are also provided on the shorter legs 6 and 7 of the two pole plates 2 and 3, on the bearing surfaces 13 of which the bearing-side ends of the armature 14 are supported.
  • the surfaces 10 and 13 of the four elevations 11 and 12 facing the anchor 14 are ground flat.
  • the armature 14 shown in FIG. 3 is essentially fork-shaped, its surfaces 15 and 16 and 17 assigned to the elevations 11 and 12 of the yoke body 1 also being ground flat. Between the two arms 18 of the armature 14, a tongue 19 is provided, which has a hole 20 into which a tension spring loading the armature in the direction of the arrow in FIG. 4 can be hung.
  • a bearing plate 21 is fastened to the bar of the T-shaped yoke body 1 formed by the shorter legs 6 and 7 of the two pole plates 2 and 3.
  • the design of the bearing plate 21, which is fastened via claws 22 to the shorter legs 6 and 7 of the pole plates 2 and 3, is known per se from AT-B-381 599.
  • the bearing plate 21 also serves to attach a permanent magnet to the Holding magnet release.
  • cross section of the web 23 delimiting the window 8 on the side of the anchor support 10 is independent of the height of the elevation 11 which is ground to form the anchor support 10.
  • the cross section of the web 23 can thus be selected to be smaller than in the known holding magnet releases, so that its saturation is reached earlier and the release performance of the holding magnet release is correspondingly smaller.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Electromagnets (AREA)
EP19880890235 1987-11-09 1988-09-12 Déclencheur à aimant de maintien Ceased EP0316295A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2955/87 1987-11-09
AT295587A AT389018B (de) 1987-11-09 1987-11-09 Haltemagnetausloeser

Publications (2)

Publication Number Publication Date
EP0316295A2 true EP0316295A2 (fr) 1989-05-17
EP0316295A3 EP0316295A3 (fr) 1990-10-10

Family

ID=3543019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880890235 Ceased EP0316295A3 (fr) 1987-11-09 1988-09-12 Déclencheur à aimant de maintien

Country Status (4)

Country Link
EP (1) EP0316295A3 (fr)
AT (1) AT389018B (fr)
AU (1) AU604381B2 (fr)
ES (1) ES2010645A4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777722A2 (fr) * 2005-10-20 2007-04-25 Siemens Aktiengesellschaft Système magnétique pour un déclencheur
CN108074785A (zh) * 2017-12-12 2018-05-25 上海良信电器股份有限公司 一种电磁式脱扣器
CN108281333A (zh) * 2017-12-12 2018-07-13 上海良信电器股份有限公司 一种电磁式脱扣装置的磁路组件
CN108281332A (zh) * 2017-12-12 2018-07-13 上海良信电器股份有限公司 一种电磁式脱扣装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848806A1 (de) * 1977-12-13 1979-06-21 Schaltelektronik Veb K Hochempfindlicher haltemagnetausloeser
AT361571B (de) * 1977-11-22 1981-03-25 Felten & Guilleaume Ag Oester Schichtenjoch-haltemagnetausloeser
EP0051231A1 (fr) * 1980-11-04 1982-05-12 BROWN, BOVERI & CIE Aktiengesellschaft Déclencheur électromagnétique
EP0073002A1 (fr) * 1981-08-21 1983-03-02 BROWN, BOVERI & CIE Aktiengesellschaft Déclencheur électromagnétique
AT381599B (de) * 1984-03-05 1986-11-10 Felten & Guilleaume Ag Oester Haltemagnetausloeser
EP0228345A1 (fr) * 1985-12-13 1987-07-08 CMC Carl Maier + Cie AG Mécanisme de déclenchement magnétique pour disjoncteur à courant de défaut

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT378862B (de) * 1984-03-05 1985-10-10 Felten & Guilleaume Ag Oester Haltemagnetausloeser

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT361571B (de) * 1977-11-22 1981-03-25 Felten & Guilleaume Ag Oester Schichtenjoch-haltemagnetausloeser
DE2848806A1 (de) * 1977-12-13 1979-06-21 Schaltelektronik Veb K Hochempfindlicher haltemagnetausloeser
EP0051231A1 (fr) * 1980-11-04 1982-05-12 BROWN, BOVERI & CIE Aktiengesellschaft Déclencheur électromagnétique
EP0073002A1 (fr) * 1981-08-21 1983-03-02 BROWN, BOVERI & CIE Aktiengesellschaft Déclencheur électromagnétique
AT381599B (de) * 1984-03-05 1986-11-10 Felten & Guilleaume Ag Oester Haltemagnetausloeser
EP0228345A1 (fr) * 1985-12-13 1987-07-08 CMC Carl Maier + Cie AG Mécanisme de déclenchement magnétique pour disjoncteur à courant de défaut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777722A2 (fr) * 2005-10-20 2007-04-25 Siemens Aktiengesellschaft Système magnétique pour un déclencheur
EP1777722A3 (fr) * 2005-10-20 2007-07-25 Siemens Aktiengesellschaft Système magnétique pour un déclencheur
CN108074785A (zh) * 2017-12-12 2018-05-25 上海良信电器股份有限公司 一种电磁式脱扣器
CN108281333A (zh) * 2017-12-12 2018-07-13 上海良信电器股份有限公司 一种电磁式脱扣装置的磁路组件
CN108281332A (zh) * 2017-12-12 2018-07-13 上海良信电器股份有限公司 一种电磁式脱扣装置
CN108281332B (zh) * 2017-12-12 2024-08-13 上海良信电器股份有限公司 一种电磁式脱扣装置
CN108281333B (zh) * 2017-12-12 2024-09-20 上海良信电器股份有限公司 一种电磁式脱扣装置的磁路组件

Also Published As

Publication number Publication date
ES2010645A4 (es) 1989-12-01
ATA295587A (de) 1989-02-15
AU604381B2 (en) 1990-12-13
EP0316295A3 (fr) 1990-10-10
AT389018B (de) 1989-10-10
AU2493288A (en) 1989-05-11

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