EP0056085A1 - Relais électromagnétique polarisé - Google Patents

Relais électromagnétique polarisé Download PDF

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Publication number
EP0056085A1
EP0056085A1 EP81108176A EP81108176A EP0056085A1 EP 0056085 A1 EP0056085 A1 EP 0056085A1 EP 81108176 A EP81108176 A EP 81108176A EP 81108176 A EP81108176 A EP 81108176A EP 0056085 A1 EP0056085 A1 EP 0056085A1
Authority
EP
European Patent Office
Prior art keywords
pole
coil
relay
plates
pole plates
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.)
Granted
Application number
EP81108176A
Other languages
German (de)
English (en)
Other versions
EP0056085B1 (fr
Inventor
Helmut Ing.-Grad. Schedele
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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6122531&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0056085(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT81108176T priority Critical patent/ATE15568T1/de
Publication of EP0056085A1 publication Critical patent/EP0056085A1/fr
Application granted granted Critical
Publication of EP0056085B1 publication Critical patent/EP0056085B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H01H51/2245—Armature inside coil
    • H01H51/2254—Contact forms part of armature

Definitions

  • the invention relates to a polarized electromagnetic relay with a one-piece coil body serving as the base body, with a ferromagnetic contact tongue arranged approximately axially in the interior of the coil body, which is attached at one end to a carrier inserted into grooves of the coil body parallel to the coil axis and with it opposite free end between two angled, held by plug-in the coil flange pole plates of a permanent magnet is movable.
  • Such a relay is known for example from DE-AS 27 23 220.
  • DE-AS 27 23 220 There is a very high-quality relay is described, in which both the permanent magnet circuit and a good coupling of the control flow circuit are achieved by the front decoupling of the permanent magnet from the pole shoes and by additional flux guiding tabs of these pole shoes.
  • the carrier for the contact tongue in the interior of the coil body is designed as an elongated adjusting plate which, after the entire relay has been hermetically sealed, can be deformed by an external magnetic field for adjusting the contact tongue.
  • This known relay is based in its entire construction on the fact that in all cases all parts of the relay are cast in the protective cap.
  • a special device for generating magnetic pulses and for measuring the armature position at each adjustment step is also required.
  • the development of such devices can be unprofitable, however, if the requirements for the relay are not so high and only relatively small quantities are needed. In such cases, the simplest and cheapest construction can be required.
  • the object of the invention is therefore to design a relay of the type mentioned at the outset in such a way that it has usable electrical and magnetic values with the simplest and cheapest manufacture and assembly and can also be used without hermetic encapsulation.
  • the carrier of the contact tongue in the form of at least one flux guide plate extends in the interior of the coil body in continuous grooves up to the vicinity of the pole plates.
  • the flux guide plate designed according to the invention is firmly anchored in the grooves of the coil body up to its end. As a result, it is no longer magnetically adjustable, but it opens up the possibility of adjusting the contact tongue attached to it in a mounting device before inserting this flux guide plate into the coil former.
  • the contact tongue is adjusted relative to the flow guide plate; but since the flux guide plate is precisely positioned due to its long guide in the coil body relative to the pole plates also inserted in guides, the contact tongue is therefore also quite well adjusted with respect to the pole plates. This adjustment is retained even when the pole plate is inserted into the coil body.
  • the flux guide plate or carrier designed according to the invention for the contact tongue has the magnetic flux, ie in particular the control flux, practically in the entire area within the coils leads and improves the magnetic circuit of the relay.
  • the contact tongue which has a relatively small cross section in order to achieve a low mass and a high elasticity, only needs to bridge a relatively small gap between the flux guide plate and the pole plates when switching.
  • a further improvement in the stability of the carrier for the contact tongue and the magnetic circuit is achieved in that the carrier forms two flux guide plates, which extend approximately parallel to both sides of the contact tongue up to the vicinity of the two pole plates.
  • the guide grooves in the coil body can be arranged so that the two flux guide plates are directly aligned with the contacting ends of the pole plates. The pre-adjustment of the contact tongue relative to the carrier with the two flux guide plates can thus be adjusted very well to the later conditions in the relay itself.
  • the coil flange receiving the pole plates is closed on the end face and forms an upwardly open chamber which has guide grooves for the two pole plates and openings at the bottom for the connection side of the relay for connecting pins molded onto the pole plates, and a circumferential, has a lockable edge with a flat lid.
  • This design of the coil flange as an upwardly open chamber simplifies assembly in that the pole plates themselves are completely accommodated in the chamber. This means that no gaps between the pole plates and the coil former need to be sealed.
  • This chamber is closed by placing the flat cover, for example made of plastic, on the edge of the coil former flange, which is also made of plastic.
  • the relay is attached ferromagnetic cap, which is also used for flow control, closed dust-proof and ready for use.
  • a hermetic seal is also possible.
  • the cap is filled with potting compound in the usual way, where the openings of the connecting pins are also sealed.
  • the flux guide plates of the carrier and the contact surfaces of the contact tongue and the pole plates can each be parallel to the connection level of the relay.
  • the functional position can be rotated through 90 ° with respect to the coil axis, so that the pole faces and the flux guide plates are each perpendicular to the connection plane of the relay.
  • the permanent magnet for premagnetizing the pole plates is expediently arranged in the chamber of the coil flange between the pole plates.
  • an asymmetrical characteristic can be achieved in that the permanent magnet bears in a known manner with one pole face on a pole plate and is at a greater distance from the second pole plate with its other pole face. This distance can be filled by a non-magnetic expansion piece, for example made of plastic.
  • a holding member can be formed in the coil flange.
  • the carrier of the contact tongue has a molded-on connecting pin in the usual way on the side of the coil former opposite the pole plates.
  • the end of the carrier or the flow transition plate can be covered with a fleece when the relay is potted in order to prevent potting compound from penetrating into the interior of the coil body.
  • the relay according to FIGS. 1 to 4 has a coil former 1, inside which there is a contact space 2 with an approximately axially arranged contact tongue 3.
  • This contact tongue 3 is connected at its fastening end 3a to a cranked tab 4 of a carrier 5 via a welding point 4a.
  • This carrier 5 consists of ferromagnetic material and has an elongated flux guide plate 6, which is inserted parallel to the contact tongue 3 in grooves 7 and 8 of the coil body.
  • the river. Guide plate 6 is made so long that it extends essentially through the entire length of the coil winding 9 and extends with its free end 6a in the vicinity of the pole plates 10 and 11.
  • the pole plates 10 and 11 sit in a chamber 12 of the coil flange 1a and are held there in grooves 13 and 14, respectively. They are cranked and, with their sections 10a, 11a, include a permanent magnet 15 arranged in the chamber 12, which in the present example is arranged asymmetrically to achieve a monostable switching characteristic.
  • the sections 10b and 11b enclose the free end 3b of the contact tongue 3 between them. Like the end of the contact tongue, they are covered with contact material and form with the contact tongue each air gap and contact points.
  • the free end 3b of the contact tongue is forked in a known manner in order to achieve double contact.
  • the pole plates 10 and 11 each have molded (or welded) connection pins 10c and 11c, which are guided in openings 16 and 17 of the coil former from the chamber 12 to the connection side of the relay.
  • the chamber 12 is provided on the end face with an end wall 18 and, apart from the openings 16 and .17 mentioned, only has an opening at the top through which the permanent magnet 15 and the pole plates 10 and 11 can be inserted.
  • This opening can be closed in a simple manner with a flat cover 19, which is simply placed on the peripheral edge 20 and connected in a suitable manner by gluing, welding or the like to the coil former.
  • the carrier 5 for the contact tongue is bent at right angles in the region of the coil flange 1b and is provided with a large-area flow transition plate 21, on which a connecting pin 22 is also formed.
  • a good coupling of the carrier to the ferromagnetic housing cap 23 is achieved, which is placed over the coil former and, in addition to the closure of the magnetic circuit, also causes magnetic shielding of the relay.
  • the relay can be hermetically sealed. In this case, in order to prevent the potting compound from flowing into the interior 2, the opening of the coil flange 1b is covered with a fleece 25.
  • the magnetically conductive contact tongue 3 is fastened to the carrier 5 or to the tab 4 by welding, riveting or screwing.
  • the contact tongue is adjusted in one Adjustment device, the contact tongue being brought into a precisely defined position relative to the flow guide plate 6 by bending the tab 4.
  • This assembly unit can then be inserted into the coil body tube, the position of the contact tongue no longer changing.
  • the bobbin has a support shoulder 26 for the contacting section 11b of the pole plate 11 and bilateral contact points 27 of the grooves 7 and 8 for the contacting section 10b of the pole plate 10.
  • the contact points 27 are used for both Flow guide plate 6 as well as for the section 10b of the pole plate 10 formed by the undersides of the grooves 7 and 8.
  • the flow guide plate 6 is pressed against the support points 27 by a cap-shaped wart 6b, so that it is aligned with the section 11b.
  • a comparison of the permanent magnet is provided, which provides a final setting of the relay parameters.
  • FIGS. 5 to 8 show a modified embodiment of the relay according to the invention, also in different views.
  • This relay has a coil former 31 with a contact space 32 lying in the coil tube, in which a contact tongue 33 is arranged approximately axially parallel.
  • the contact tongue is rotated here by 90 ° about the coil axis, so that its main plane and also the contact surfaces are perpendicular to the connection plane of the relay.
  • the contact tongue 33 is fastened with its fastening end 33a between two adjustment tabs 34 and 34 'of a carrier 35 which has two flux guide plates 36 and 36' which run parallel to the contact tongue up to the vicinity of the pole plates 40 and 41 and enclose the contact tongue between them. Otherwise, this relay is constructed similarly to that previously described.
  • the flux guide plates 36 and 36 ' are guided in grooves 37 and 38 or 37' and 38 'of the coil body.
  • a coil winding 39 is applied to the coil former 31.
  • the end 33b of the contact tongue 33 interacts with the contact surfaces 40b and 41b of the pole pieces 40 and 41.
  • the pole plates 40 and 41 are only angled in this example. If necessary, they could also be cranked like the pole plates of FIG. 1.
  • a permanent magnet 45 is arranged in the chamber 42 of the coil flange 31a between the sections 40a and 41a of the pole plates.
  • This permanent magnet 45 is held in the axial direction of the coil by the end wall 44 and a molded pin 43. In its direction of polarization between the pole shoes, it is pressed by a spreading piece 46 against the section 41a of one pole plate and separated from the section 40a of the other pole plate. As a result, the two pole plates are held in position and fastened at the same time.
  • the chamber 42 is closed at the top with a cover 49, similar to the chamber 12 in FIG. 1.
  • the carrier 35 has, in the extension of the two flow guide plates 36 and 36 ', flow transition plates 51 and 51' with an integrally formed connecting pin 52.
  • the entire relay is surrounded by a ferromagnetic cap 53 and sealed with potting compound 54 as required, whereby a fleece 55 prevents the potting compound from penetrating into the interior of the coil.
  • the connection pin 52 of the contact tongue, the connection pins 40c and 41c of the pole plates and the coil connection pins 56 emerge in a predetermined pattern from the connection side of the relay. In the usual way, spacer warts 57 are also formed on the underside of the coil body.
  • the assembly is carried out similarly to the previously described relay in such a way that the contact tongue with the flux guide plates is pre-adjusted in a device and then inserted into the coil body.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Surgical Instruments (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Magnetic Treatment Devices (AREA)
  • Valve Device For Special Equipments (AREA)
  • Developing Agents For Electrophotography (AREA)
EP81108176A 1981-01-13 1981-10-09 Relais électromagnétique polarisé Expired EP0056085B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108176T ATE15568T1 (de) 1981-01-13 1981-10-09 Polarisiertes elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100817 1981-01-13
DE19813100817 DE3100817A1 (de) 1981-01-13 1981-01-13 Polarisiertes elektromagnetisches relais

Publications (2)

Publication Number Publication Date
EP0056085A1 true EP0056085A1 (fr) 1982-07-21
EP0056085B1 EP0056085B1 (fr) 1985-09-11

Family

ID=6122531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108176A Expired EP0056085B1 (fr) 1981-01-13 1981-10-09 Relais électromagnétique polarisé

Country Status (7)

Country Link
US (1) US4403203A (fr)
EP (1) EP0056085B1 (fr)
JP (1) JPS57141838A (fr)
AT (1) ATE15568T1 (fr)
BR (1) BR8200135A (fr)
DE (2) DE3100817A1 (fr)
PT (1) PT74269B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616959A1 (fr) * 1987-06-19 1988-12-23 Koehler Gerard Relais bipolarise miniature protege
EP0304185A2 (fr) * 1987-08-17 1989-02-22 Beta Mfg. Co. Relais électromagnétique encapsulé

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338208A1 (de) * 1983-10-20 1985-05-02 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais und verfahren zu dessen herstellung
DE3338198A1 (de) * 1983-10-20 1985-05-02 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais und verfahren zu dessen herstellung
JPS6168452U (fr) * 1984-10-09 1986-05-10
US6246306B1 (en) * 1999-02-04 2001-06-12 Klaus A. Gruner Electromagnetic relay with pressure spring
US9754747B1 (en) * 2016-04-25 2017-09-05 Song Chuan Precision Co., Ltd. Relay device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011044A1 (de) * 1969-09-22 1971-04-01 Elesta Ag Elektronik Kleinschutz
DE2723220B1 (de) * 1977-05-23 1978-11-23 Siemens Ag Polarisiertes elektromagnetisches Miniaturrelais
DE2934558A1 (de) * 1978-08-29 1980-03-13 Sauer Hans Elektromagnetisches relais

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111655A (en) * 1978-02-21 1979-09-01 Omron Tateisi Electronics Co Polar relay

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011044A1 (de) * 1969-09-22 1971-04-01 Elesta Ag Elektronik Kleinschutz
DE2723220B1 (de) * 1977-05-23 1978-11-23 Siemens Ag Polarisiertes elektromagnetisches Miniaturrelais
FR2392486A1 (fr) * 1977-05-23 1978-12-22 Siemens Ag Relais electromagnetique, miniature, polarise
DE2934558A1 (de) * 1978-08-29 1980-03-13 Sauer Hans Elektromagnetisches relais
GB2030366A (en) * 1978-08-29 1980-04-02 Sauer H Electromagnetic relay

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616959A1 (fr) * 1987-06-19 1988-12-23 Koehler Gerard Relais bipolarise miniature protege
EP0304185A2 (fr) * 1987-08-17 1989-02-22 Beta Mfg. Co. Relais électromagnétique encapsulé
EP0304185A3 (fr) * 1987-08-17 1990-05-02 Beta Mfg. Co. Relais électromagnétique encapsulé

Also Published As

Publication number Publication date
JPS57141838A (en) 1982-09-02
PT74269A (de) 1982-02-01
EP0056085B1 (fr) 1985-09-11
PT74269B (de) 1983-08-23
ATE15568T1 (de) 1985-09-15
US4403203A (en) 1983-09-06
DE3100817A1 (de) 1982-08-12
BR8200135A (pt) 1982-11-03
DE3172242D1 (en) 1985-10-17

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