EP0056840A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0056840A1
EP0056840A1 EP81108233A EP81108233A EP0056840A1 EP 0056840 A1 EP0056840 A1 EP 0056840A1 EP 81108233 A EP81108233 A EP 81108233A EP 81108233 A EP81108233 A EP 81108233A EP 0056840 A1 EP0056840 A1 EP 0056840A1
Authority
EP
European Patent Office
Prior art keywords
contact
coil
relay according
coil body
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
EP81108233A
Other languages
German (de)
English (en)
Other versions
EP0056840B1 (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
Siemens Corp
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
Priority to AT81108233T priority Critical patent/ATE11709T1/de
Publication of EP0056840A1 publication Critical patent/EP0056840A1/fr
Application granted granted Critical
Publication of EP0056840B1 publication Critical patent/EP0056840B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/023—Details concerning sealing, e.g. sealing casing with resin

Definitions

  • the invention relates to an electromagnetic relay with a one-piece coil body made of insulating material serving as a base body, with a ferromagnetic armature contact tongue arranged in the interior of the coil body approximately axially parallel, fixed by insertion from one end face, and with a contact chamber arranged on the end face on the coil body with two contact plates, some of which are embedded in the walls of the contact chamber and form contact surfaces opposite the free end of the contact tongue in the interior of the contact chamber.
  • Object of the invention is to make a relay of the type mentioned so that the contact plates in a simple one p ritz technology in the walls of the contact chamber can be embedded, that this contact chamber can be sealed in an easy manner, and that the contact plates even after closing the contact chamber can still be adjusted within certain limits.
  • the sheathing of the contact chamber is formed in two parts with a parting plane which extends approximately through the coil axis, the first part being integrally formed on the coil body as an attachment to the coil flange and carrying the first contact plate embedded, while the second part of the sheathing as - separately manufactured closure piece carries the second contact plate embedded, both the approach of the coil body and the closure piece each having a continuous recess from the outside to the contacting section of the respectively embedded contact plate.
  • the coil body itself is made in one piece, on which, however, only one half of the contact chamber is integrally formed on the end face, while the second half of this contact chamber is fitted as a closure piece.
  • the closure piece on the other hand, also has only one embedded contact plate and can be manufactured in the same way.
  • the connection of the two covering parts for the contact chamber takes place by bringing plastic surfaces on top of each other, which are easy to seal. Nevertheless, after these parts have been put together, there is still a possibility of adjustment for the contact plates.
  • These contact plates are in fact exposed in the recesses of the casing in the area which carries the contact surfaces inwards.
  • the contact distance can be gradually reduced as required by mechanical pressure with an adjustment tool from the outside. Although this means only one adjustment option in one direction, this should be sufficient if the tolerances during production are provided in an appropriate manner. Nevertheless, the contact space is already closed during this adjustment process, since the recesses in the casing are sealed off by the contact plates embedded all around their edge.
  • At least one of the contact plates is expediently coupled ferromagnetic to a flux guiding element, which is expediently designed as a housing cap.
  • This ferromagnetic coupling for closing the excitation circuit can take place via the contact plate itself, if it is ferromagnetic, or via an additional pole plate.
  • the relay is polarized, wherein the coil body attachment and the closure piece can form a common cavity for receiving a permanent magnet.
  • pole plates are arranged in the recesses of the attachment and of the closure piece, each of which rests on one contact plate at one end and is brought up to a pole of the permanent magnet at its other end.
  • pole plates can at the same time effect the coupling of the excitation flux to the flux guiding element, for example the housing cap.
  • the pole plates are expediently Z-shaped, but other shapes can also be selected to match the relay construction.
  • With the magnetic coupling to the housing cap it is understandable to provide electrical insulation of the contact plates, which can be ensured, for example, by means of a film between the contact plate and the pole plate or between the pole plate and the housing cap.
  • the recesses of the bobbin approach and the closure piece are expediently filled with potting compound after the pole plates have been introduced and, if necessary, after the contact plates have been adjusted.
  • the flux plate which extends approximately parallel to the contact tongue within the coil former, can also carry an additional auxiliary magnet, which influences the contact tongue and makes mechanical adjustment unnecessary.
  • Auxiliary magnets could also be provided in the recesses of the bobbin approach and the closure piece.
  • the contact tongue could also be adjusted by its corresponding magnetization.
  • the relay according to FIGS. 1 to 4 has a one-piece coil body 1, to which the winding 2 is applied and in the tubular interior 3 of which a contact tongue 4 extends approximately axially parallel. It is attached at one end to a carrier 5, which is inserted as a flux guide plate parallel to the contact tongue in grooves 6 of the coil body and is attached by a press fit. At the free end of the carrier 5, a connecting pin 5a is formed.
  • the free end of the contact tongue extends into a contact space 7 arranged on the end face in front of the bobbin flange 1 a, which thus represents a continuation of the coil interior 3.
  • the envelope of this contact space is formed by a projection 8 which is integrally formed on the coil body flange 1a and by a closure piece 9 which is manufactured separately.
  • the parting plane 10 between the neck 8 and the closure piece 9 runs approximately in the coil axis.
  • a contact plate 11 is embedded in the coil body extension 8 in such a way that the contact section 11a is exposed in the region of the contact chamber 7 and forms a contact surface opposite the free end of the contact tongue 4.
  • a contact plate 12 is embedded in the closure piece in such a way that the contact section 12a forms a contact surface in the contact space 7.
  • a contact pin 11b leading to the outside is formed on the contact plate 11, a contact pin 12b is formed on the contact plate 12: the contact sections 11a and 12a are each embedded with their edges in the coil body extension 8 or in the closure piece 9 ', while the central part is inwardly facing the contact space 7 as well also exposed to the outside.
  • the coil body extension 8 thus has a recess 13 which extends through to the contact section 11a, while the closure piece 9 has a recess 14 which extends through the contact section 12a.
  • Z-shaped pole plates 15 and 16 are inserted, one end of which rests flat on a contact section 11a or 12a and the other end of which is guided to a pole of a permanent magnet 17.
  • the permanent magnet 17 lies in a magnetic chamber 18, which is formed by the bobbin extension 8 and the closure piece 9.
  • the two pole plates which are simply inserted into the recesses 13 and 14 from the outside, have the task of guiding the permanent magnetic flux to the contact plates.
  • the pole plates 15 and 16 also close the excitation flow circuit between the contact tongue 4 and the ferromagnetic housing cap 19.
  • one of the pole plates 15 or 16 could also be omitted.
  • an arm 16a ' instead of the arm 16a, an arm 16a ', which is bent in the opposite direction and is shown in dashed lines, would be provided, which causes a direct coupling of this pole plate to the housing cap 19.
  • electrical insulation between the contact plate 12 and the housing cap 19 must be ensured. This could be achieved, for example, by a film (not shown) between the pole sheet arm 16a 'and the housing cap 19.
  • the contact plate 11 is first injected into the coil body 1 with the molded-on projection 8, and also the coil connection pins 20. This coil body is wound; as far as the contact plate 11 is contaminated, it is easily accessible for cleaning.
  • the flux plate 5 with the magnetically conductive contact tongue 4 is then inserted into the coil former.
  • the contact space is closed by placing the closure piece 9 with the magnetically conductive contact plate 12, which is also injected. By pressing the plastic parts together, the contact space is already largely sealed, while the opposite end of the coil body 1 can be covered with a nonwoven film 21.
  • the permanent magnet 17 Before the closure piece 9 is pressed on, the permanent magnet 17 must be inserted into the magnet chamber 18.
  • the contact distance between the contact sections 11a and 12a can be reduced by pressing the contact sections 11a and 12a through the recesses 13 and 14 with an adjusting tool.
  • This adjustment of the contact distance can be done step by step, the contact distance being measured in each case by suitable means.
  • the position of the contact tongue 4 can be closed before the Coil body can be adjusted by suitable adjustment at their attachment point.
  • the housing cap 19 can be placed on and the entire space between the coil former and the housing cap can be filled with potting compound, the recesses 13 and 14 in particular being filled.
  • the contact tongue can also be influenced magnetically.
  • an auxiliary permanent magnet 22 can be provided on the flux plate 5, for example, which effects a monostable switching behavior of the relay.
  • Auxiliary permanent magnets 23 and 24 could also be provided in the recesses 13 and 14, as shown in FIG. 5. Otherwise, the relay according to FIG. 5 corresponds to the representation of FIG. 1 .

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
EP81108233A 1981-01-22 1981-10-12 Relais électromagnétique Expired EP0056840B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108233T ATE11709T1 (de) 1981-01-22 1981-10-12 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3102011 1981-01-22
DE19813102011 DE3102011A1 (de) 1981-01-22 1981-01-22 Elektromagnetische relais

Publications (2)

Publication Number Publication Date
EP0056840A1 true EP0056840A1 (fr) 1982-08-04
EP0056840B1 EP0056840B1 (fr) 1985-02-06

Family

ID=6123128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108233A Expired EP0056840B1 (fr) 1981-01-22 1981-10-12 Relais électromagnétique

Country Status (7)

Country Link
US (1) US4389626A (fr)
EP (1) EP0056840B1 (fr)
JP (1) JPS57141837A (fr)
AT (1) ATE11709T1 (fr)
BR (1) BR8200301A (fr)
DE (2) DE3102011A1 (fr)
PT (1) PT74317B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178575A3 (en) * 1984-10-09 1987-02-04 Omron Tateisi Electronics Co. Reed relay
WO1997042643A1 (fr) * 1996-05-07 1997-11-13 Siemens Aktiengesellschaft Relais electromagnetique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5197480B2 (ja) * 2009-05-14 2013-05-15 株式会社日本自動車部品総合研究所 電磁継電器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909940A1 (de) * 1968-02-27 1970-12-17 Hans Sauer Elektromagnetisches Umschaltrelais mit geschuetztem Kontaktsystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522564A (en) * 1968-02-27 1970-08-04 Matsushita Electric Works Ltd Reed relay
CH514930A (de) * 1969-09-22 1971-10-31 Elesta Ag Elektronik Kleinschütz und Verfahren zur Herstellung desselben
DE2507914C3 (de) * 1975-02-24 1980-02-28 Hans 8024 Deisenhofen Sauer Elektromagnetisches Relais
DE2723220C2 (de) * 1977-05-23 1979-08-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Polarisiertes elektromagnetisches Miniaturrelais

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909940A1 (de) * 1968-02-27 1970-12-17 Hans Sauer Elektromagnetisches Umschaltrelais mit geschuetztem Kontaktsystem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178575A3 (en) * 1984-10-09 1987-02-04 Omron Tateisi Electronics Co. Reed relay
WO1997042643A1 (fr) * 1996-05-07 1997-11-13 Siemens Aktiengesellschaft Relais electromagnetique

Also Published As

Publication number Publication date
DE3168816D1 (en) 1985-03-21
PT74317B (de) 1983-08-24
US4389626A (en) 1983-06-21
BR8200301A (pt) 1982-11-23
PT74317A (de) 1982-02-01
JPS57141837A (en) 1982-09-02
ATE11709T1 (de) 1985-02-15
JPH0118534B2 (fr) 1989-04-06
DE3102011A1 (de) 1982-08-26
EP0056840B1 (fr) 1985-02-06

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