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EP0249758B1 - Elektromagnetisches Relais - Google Patents

Elektromagnetisches Relais Download PDF

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Publication number
EP0249758B1
EP0249758B1 EP87107218A EP87107218A EP0249758B1 EP 0249758 B1 EP0249758 B1 EP 0249758B1 EP 87107218 A EP87107218 A EP 87107218A EP 87107218 A EP87107218 A EP 87107218A EP 0249758 B1 EP0249758 B1 EP 0249758B1
Authority
EP
European Patent Office
Prior art keywords
base
terminals
terminal platform
fitted
electromagnetic relay
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.)
Expired - Lifetime
Application number
EP87107218A
Other languages
English (en)
French (fr)
Other versions
EP0249758A2 (de
EP0249758A3 (en
Inventor
Kozo-Omron Tateisi Electronics Co. Maenishi
Yoichi-Omron Tateisi Electronics Co. Nakanishi
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to AT87107218T priority Critical patent/ATE78119T1/de
Publication of EP0249758A2 publication Critical patent/EP0249758A2/de
Publication of EP0249758A3 publication Critical patent/EP0249758A3/en
Application granted granted Critical
Publication of EP0249758B1 publication Critical patent/EP0249758B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/10—Electromagnetic or electrostatic shielding

Definitions

  • the present invention relates to an electromagnetic relay.
  • shielding of the relay terminals is performed by providing a plated surface on the outside body of the relay from which the terminals protrude (e.g. DE-B-2 146 407).
  • a problem that has arisen with such a plated surface on the relay is that it can occur that poor contact happens between the plated surface and the ground terminals which are providing grounding therefor. This is primarily because the joining area or cross section between such a thin film and a ground terminal protruding from the base is extremely limited in its extent.
  • this relay is substantially made up of a base assembly 301, an electromagnet assembly 310, an armature assembly 320, a pair of restoring springs 330 and 335, and an outer case 340.
  • the electromagnet assembly 310 comprises a spool 312 through the middle of which there is fitted an iron core 311 and on which there is wound a coil 317.
  • the spool 312 is connected to a yoke member 319, which has two upward projecting pole pieces 319a and 319b at each of its ends which are positioned on the two sides of the corresponding projecting end of the iron core 311.
  • connection between the spool 312 and the yoke member 319 is accomplished by platform members 313 being fitted on either end of the spool 312 and by the upward projecting pole piecees 319a being fitted through slots 313a in the platform members 313 while the inside surfaces of the pole pieces 319b are contacted to the outer surfaces of side portions 313b of the platform members 313.
  • coil terminals 318, 318 are fixedly mounted in the platform members 313 and project downwards therefrom through appropriate holes in the base 312, not particularly shown.
  • the armature assembly 320 comprises a body portion 321 which is integrally molded from synthetic resin, and at each end of this body portion 321 there are mounted in frame portions 322 two plate pieces 326a and 326b and a permanent magnet 327 bridging between them so as to define a C-shape, and with the orientations of the permanent magnets 327, 327 opposite to one another as in said first embodiment. Further, insulated contact carrying members 328, 328 are fitted into holes 323 formed in said body portion 321, and each of these contact carrying members 328 carries a pair of springy contact pieces 329a and 329b extending on both its sides.
  • the armature assembly 320 is so disposed that, at each of its ends, the plate pieces 326a and 326b are inserted into the aforementioned gaps defined between the end of the iron core 311 and the pole pieces 319a and 319b, with some movement remaining therebetween. And the armature assembly 320 is held in this position by two sheet springs 330 and 335 in such a fashion as to be movable transversely to and fro, against a restoring force provided by these sheet springs, through a certain distance in the directions A and A (see Fig. 4).
  • the sheet spring 330 is fixed to the base 302 by its central portion 331 being fitted into a slot 305a formed in said base 302, and its end portions 332 are fitted into slots 324 formed in the body portion 321 of the armature assembly 320.
  • the sheet spring 335 is fixed to the armature assembly 320 by hooked or notched shape portions 336 at its center portion (whose notch shape extends along the longitudinal direction of said sheet spring 335) being loosely fitted over corresponding projections 325 formed on the body portion 321 of said armature assembly 320, and its end portions 337, 337 are fitted into slots 302b formed in the base 302.
  • This base assembly 301 comprises a base 302 integrally molded from synthetic resin and a terminal platform 308.
  • the base 302 has a slot 303 formed therein, and the terminal platform 308 is fixedly secured in this slot 303 and has fixed terminals 309a, 309b, and 309c mounted in it.
  • Upper contacts 309a', 309b', and 309c' of the terminals 309a, 309b, and 309c lie in the slot 303, and in this slot 303 there are provided ground contacts 302a' through 302f' on the walls of the slot 303 adjacent to each of the terminals 309a, 309b and 309c on either side thereof (see Fig. 4).
  • a grounding base board 305 is press formed out of copper plate, and has six integrally formed ground terminals 306a through 306f extending in the one direction therefrom (the direction out from the body of the relay) and five also integrally formed mounting lugs 305a through 305e extending in the other direction therefrom (into the body of the relay).
  • the mountings lugs 305a through 305e are formed with notches 307a through 307e for positive engagement.
  • the grounding base board 305 is fixed to the lower side of the base 302 by being pressed against with the mounting lugs 305a through 305d slipping into and engaging positively (thanks to the notches 307a through 307e) with guide grooves 303a' through 303e' formed in the base 302.
  • the grounding base board 305 is in very good overall contact with the conducting coating film formed thereon for very good grounding.
  • the slot 303 in the base 302 is made up of slotlets 303e and 303f which communicate between larger sockets 303a, 303b, and 303c; these shapes are for receiving fatter portions of the terminal platform 308 which accomodate the terminals 309a through 309c and for receiving the thinner portions 308e and 308f of the terminal platform 308 joining these fatter portions.
  • this base assembly 301 After the grounding base board 305 has been fitted to the base 302 as explained above by the mounting lugs 305a through 305e engaging with the guide grooves 303a' through 303e', then the terminal platform 308 is pushed into the slot 303, with the fatter terminal receiving portions thereof fitted into the socket shapes 303a, 303b, and 303c and with the thinner portions 308e and 308f fitted into the slotlets 303e and 303f, and with the side faces 308a through 308d defined on the terminal platform 308 (see Fig. 2) pushing strongly against the side inner surfaces of the socket shapes 303a, 303b, and 303c. Thereby a very good sealing structure is obtained.
  • ground terminals 306a through 306d and the mounting lugs 305a through 305d are arranged on the opposite sides of the terminals 309a, 309b, and 309c, leakage of high frequency signals is well guarded against. And because the grounding base plate 305 is pressed hard against the base 302 and positively holds the terminal platform 308 in the slot 303 thereof, a very good sealing effect is obtained.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Magnetic Treatment Devices (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)

Claims (3)

1. Elektromagnetisches Relais, welches eine Basis (302), die mit einem Einsetzsockel ausgebildet und mit einer elektrisch leitenden Beschichtung versehen ist, eine Anschlußplattform (308), die darin angebrachte Anschlüsse (309a, 309b, 309c) aufweist und in den Einsetzsockel eingesetzt ist, und eine Massegrundplatte (305), die gegen die Basis (302) die Anschlußplattform (308) in dem Sockel unter Anpreßdruck haltend und die elektrisch leitende Beschichtung berührend festgelegt ist, aufweist.
2. Elektromagnetisches Relais nach Anspruch 1, bei welchem die Massegrundplatte (305) gegen die Basis durch Befestigungsansätze (305a - 305d) festgelegt ist.
3. Elektromagnetisches Relais nach Anspruch 1 oder 2, bei welchem die Massegrundplatte (305) mit wenigstens einem einstückig ausgebildeten Masseanschluß (306a - 306f) versehen ist.
EP87107218A 1983-10-08 1984-04-27 Elektromagnetisches Relais Expired - Lifetime EP0249758B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87107218T ATE78119T1 (de) 1983-10-08 1984-04-27 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58188925A JPS6081724A (ja) 1983-10-08 1983-10-08 電磁継電器
JP188925/83 1983-10-08

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP84104772.3 Division 1984-04-27

Publications (3)

Publication Number Publication Date
EP0249758A2 EP0249758A2 (de) 1987-12-23
EP0249758A3 EP0249758A3 (en) 1988-04-20
EP0249758B1 true EP0249758B1 (de) 1992-07-08

Family

ID=16232280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107218A Expired - Lifetime EP0249758B1 (de) 1983-10-08 1984-04-27 Elektromagnetisches Relais

Country Status (4)

Country Link
EP (1) EP0249758B1 (de)
JP (1) JPS6081724A (de)
AT (1) ATE78119T1 (de)
DE (1) DE3485806T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109127A (ja) * 1983-11-16 1985-06-14 オムロン株式会社 高周波電磁継電器
FR2725832B1 (fr) * 1994-10-17 1997-01-03 Schneider Electric Sa Appareil contacteur
CN1123030C (zh) 1996-08-09 2003-10-01 欧姆龙株式会社 高频开关

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2146407C3 (de) * 1971-09-16 1978-10-26 Standard Elektrik Lorenz Ag, 7000 Stuttgart Flachrelais in Miniaturbauweise
DE2429775A1 (de) * 1974-06-21 1976-01-08 Hartmann & Braun Ag Steckfassung fuer relais und relais fuer diese fassung

Also Published As

Publication number Publication date
EP0249758A2 (de) 1987-12-23
JPH0412574B2 (de) 1992-03-05
DE3485806T2 (de) 1993-02-25
EP0249758A3 (en) 1988-04-20
ATE78119T1 (de) 1992-07-15
DE3485806D1 (de) 1992-08-13
JPS6081724A (ja) 1985-05-09

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