EP0141709A2 - Elektromagnetisches Relais - Google Patents

Elektromagnetisches Relais Download PDF

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Publication number
EP0141709A2
EP0141709A2 EP84402003A EP84402003A EP0141709A2 EP 0141709 A2 EP0141709 A2 EP 0141709A2 EP 84402003 A EP84402003 A EP 84402003A EP 84402003 A EP84402003 A EP 84402003A EP 0141709 A2 EP0141709 A2 EP 0141709A2
Authority
EP
European Patent Office
Prior art keywords
coil
cylinder head
relay according
frame
housing
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.)
Withdrawn
Application number
EP84402003A
Other languages
English (en)
French (fr)
Other versions
EP0141709A3 (de
Inventor
Harry Claesson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0141709A2 publication Critical patent/EP0141709A2/de
Publication of EP0141709A3 publication Critical patent/EP0141709A3/de
Withdrawn legal-status Critical Current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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching circuit

Definitions

  • the present invention relates to electromagnetic relays for high currents, preferably to be mounted on a printed circuit board, and aims to provide a relay with low half-loads, in particular as regards the height of the relay above the board, while by meeting the requirements usually imposed on known high current relays.
  • Such relays include a magnetic circuit consisting of a yoke and an armature, a coil with one or more windings, as well as a set of contact springs. There are many variations which differ from each other by the shape of the cylinder head and the armature, as well as by the location of the contacts and the drive of the movable contacts.
  • the invention proposes a new conformation of the cylinder head and of the armature suitable for the construction of a relay for strong currents of small dimensions. It also provides provisions in the contact drive allowing additional space savings.
  • the relay illustrated in FIGS. 1 and 2 consists of a cylinder head 1, a coil 2 and an armature 3.
  • a housing consisting of a sole 4 and a cover 5 is disposed on the coil 2.
  • the housing contains a set of contact springs mounted under the sole 4.
  • the set of contact springs is made up of two fixed contact springs 6 and 7 and a movable contact spring 8.
  • a drive arm 9 connects the movable contact spring 8 to the spring 10 welded to the frame 3.
  • the relay therefore consists of two parts.
  • the first part is the magnetic circuit.
  • the second part is the housing in which the contact spring set is housed.
  • the magnetic circuit consists of the yoke 1, the coil 2 and the armature 3.
  • the two ends of the cylinder head 1, 1a and 1b, are U-shaped.
  • the pole piece 1a of the cylinder head 1 is inserted into the coil 2 over a length which is greater than half the winding length of the coil 2.
  • the part 1a of the cylinder head has been slightly thinned and, at the time of insertion, this part has been folded outwards by an angle of 10 ° about.
  • the thinned part 1a of the cylinder head was pushed back by approximately 10 °.
  • the armature 3 is inserted into the coil 2.
  • the front part 3b of the frame extends in a bevel; this makes it possible to have a narrower opening in the coil 2 and to reduce the circumference of the windings and the height of the relay.
  • a spring 10 is welded in the middle of the frame 3.
  • the free end 10a of the spring 10 bears against the coil 2 and pushes the end 3a of the frame against the part 1b of the cylinder head.
  • the drive arm 9 acts on the movable contact spring 8.
  • Part of the housing consists of a sole 4 made from an insulating material.
  • the sole 4 is arranged outside the coil 2.
  • the sole 4 is fitted into the coil by the projection 4a.
  • the sole 4 acts as insulation between the winding of the coil and the set of contact springs mounted under the sole 4.
  • the sole 4 is provided with side walls which partially enclose the set of contact springs and the coil.
  • connection pins 11 can pass in front of the sole 4 and exit through the cover 5.
  • the sole 4 is provided with chimneys 4b, 4c and 4d, intended for mounting the contact springs.
  • the fixed contact spring 6 is folded in half and introduced into the cavity of the chimney 4b ( Figure 2).
  • the welded connecting pin 6a of the contact spring protrudes from the sole 4 and passes through the cover 5.
  • the fixed contact spring 7 is folded in half and introduced into the cavity of the chimney 4c.
  • connection pin 7a of the contact spring protrudes from the sole 4 and passes through the cover 5.
  • the movable contact spring 8 is provided with a welded bridge 8a (FIG. 2).
  • the bridge 8a is folded in half at its two ends.
  • the ends of the bridge 8a are introduced into the cavities of the chimneys 4d.
  • the bridge 8a has in its middle two connection pins 8b which pass through the cover 5.
  • the contact spring 8 is produced with a double camber (see FIG. 1), thus the elastic part is longer in the contact spring.
  • cover 5 is made of insulating material (see Figures 1 and 2).
  • connection pins 11 of the coil 2 and the connection pins (6a, 7a) of the contact springs pass through the cover in opposite corners and their spacing is sufficient to guarantee the required safety against breakdowns.
  • connection pins complies with the standards for mounting on printed circuit boards.
  • the cover is provided inside with projections pressing against the contact springs to keep them in their fixings.
  • the cover 5 has side walls which surround the side walls of the sole 4.
  • the side walls of the hood 5 extending upwards are provided with projections 5a (see FIG. 1).
  • One of the walls of the cover 5 prevents the armature from sliding out of the coil 2 (FIG. 1).
  • the hood has the effect of making the two parts of the relay integral.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP84402003A 1983-10-06 1984-10-05 Elektromagnetisches Relais Withdrawn EP0141709A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8305492 1983-10-06
SE8305492A SE8305492L (sv) 1983-10-06 1983-10-06 Elektromagnetiskt rele

Publications (2)

Publication Number Publication Date
EP0141709A2 true EP0141709A2 (de) 1985-05-15
EP0141709A3 EP0141709A3 (de) 1987-08-19

Family

ID=20352785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402003A Withdrawn EP0141709A3 (de) 1983-10-06 1984-10-05 Elektromagnetisches Relais

Country Status (2)

Country Link
EP (1) EP0141709A3 (de)
SE (1) SE8305492L (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH238755A (de) * 1943-06-17 1945-08-15 Siemens Ag Albis Polarisiertes Magnetsystem.
US3723925A (en) * 1972-05-30 1973-03-27 Essex International Inc Electromagnetic relay
DE2617631A1 (de) * 1976-04-22 1977-11-03 Telefonbau & Normalzeit Gmbh Ankerlagerung fuer elektromagnetisches relais

Also Published As

Publication number Publication date
SE8305492D0 (sv) 1983-10-06
SE8305492L (sv) 1985-04-07
EP0141709A3 (de) 1987-08-19

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