EP1177565B1 - Relais electromagnetique et son procede de fabrication - Google Patents

Relais electromagnetique et son procede de fabrication Download PDF

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Publication number
EP1177565B1
EP1177565B1 EP00936710A EP00936710A EP1177565B1 EP 1177565 B1 EP1177565 B1 EP 1177565B1 EP 00936710 A EP00936710 A EP 00936710A EP 00936710 A EP00936710 A EP 00936710A EP 1177565 B1 EP1177565 B1 EP 1177565B1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
relay according
coil
plastics material
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
EP00936710A
Other languages
German (de)
English (en)
Other versions
EP1177565A1 (fr
Inventor
Josef Kern
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.)
TE Connectivity Solutions GmbH
Original Assignee
Tyco Electronics Logistics 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 Tyco Electronics Logistics AG filed Critical Tyco Electronics Logistics AG
Publication of EP1177565A1 publication Critical patent/EP1177565A1/fr
Application granted granted Critical
Publication of EP1177565B1 publication Critical patent/EP1177565B1/fr
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
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/029—Composite material comprising conducting material dispersed in an elastic support or binding material
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H2050/166—Magnetic circuit arrangements wherein the magnetic circuit parts are molded in a magnetic plastic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former

Definitions

  • the invention relates to a relay according to the preamble of Claim 1 and a process for its preparation.
  • Relays are usually made up of different parts Composed of materials. So it becomes soft magnetic Iron for the parts of the magnetic circuit and copper-containing, electrically conductive materials for parts of the Load and excitation circuit used. There are also plastic parts, the as insulating parts or as support parts serve. For the manufacture of such a relay are many manufacturing, assembly and connection steps are required, which is a high investment in the means of production require and cause high manufacturing costs.
  • a relay according to the preamble of claim 1 is known from the US-A-4 044 322 and also known from US-A-3 784 941.
  • the coil winding made of plastic the core consists of solid metal, and the one moving part and An anchor formed from a leaf spring also consists of a metallic material.
  • the object of the present invention is therefore a relay to create that with a few individual parts, a few different materials and a few manufacturing steps gets along, which has the features of claim 1.
  • Such a relay is advantageous because next to the bobbin the core assembly is made of plastic and the desired properties by adding a ferromagnetic Share can be achieved.
  • a polymer is used as the plastic used a powder for the added materials, namely an iron powder to add ferromagnetic properties obtained, and for example a silver powder to be electrical to obtain conductive properties.
  • connection elements a non-conductive or weakly conductive Plastic is used, which is covered with a metal layer is.
  • a plastic with electrical conductive properties it proves advantageous if the connections are covered with metallic layers that for example manufactured in a galvanic process because this improves the soldering and connecting ability of the connections. This procedure can also work for one advantageous metallic coating of the contact areas of the load circuit can be applied.
  • the manufacture of a relay according to the invention is special simple if a multi-component injection molding process is used as the shaping process is chosen.
  • FIGS. 1A to 1D show the manufacture of a device according to the invention Relay represented by the relay in different Phases of manufacture is shown.
  • an insulating one is made Plastic injected a bobbin 1, the first and has a second bobbin flange 2 and 3.
  • An armature support 5 is molded onto the first coil former flange 2. This extends in an extension of the first coil former flange Second
  • FIG. 1B shows the plastic, as in the first manufacturing step was used with a ferromagnetic powder filled.
  • this material that of the coil former 1 enclosed space sprayed out, so that there is a core 6.
  • this material with the core 6 one Core arrangement forming yoke legs 7 and an armature 14 are injection molded.
  • the electrically conductive parts are molded on. These exist from a filled with an electrically conductive powder Plastic. This manufacturing step also takes place in the injection molding process.
  • the load circuit connections are created 8 and the coil connections 9. Each section of the Load circuit connections 8 forms a fixed contact 15.
  • a contact bridge 10 in the present exemplary embodiment molded onto the armature 14 or the armature support 5.
  • the live Plastics on the surface chemically or galvanically be coated with a metal layer.
  • a coil 11 is opened wound the bobbin 1 and the winding ends with winding pins 13 of the coil connections 9 connected.
  • the anchor carrier 5 with the anchor 14 and the contact bridge 10 folded about 90 ° and with two edges on its free End at two locking lugs 12, which are connected to the load circuit connections 8 are molded, locked. So movement of the armature 14 is in restricted in two directions, on the one hand by the detents 12 and on the other hand through the two to the load circuit connections 8 molded fixed contacts 15.
  • the locking lugs 12 are attached so that the anchor 14 still enough room for the armature movement during the switching process remains.
  • the contact bridge 10 has the shape of a U, with the two end legs of the U lie on the arms 17 of the anchor carrier 5 and the Cross leg connects these two arms together.
  • FIG. 2 shows a relay according to the invention in longitudinal section after the first production step
  • FIG. 3 shows the fully assembled relay in longitudinal section.
  • FIG 4. A development of a relay according to the invention is shown in FIG 4. With this relay there is an additional one for switching larger loads Power transistor 18 on the second bobbin flange 3 arranged and injected. He takes over Current routing of the load circuit during the opening or Closing process of the relay and is parallel to the switching path switched over the contact bridge 10.
  • the heat dissipation of the power transistor takes place 18 advantageous through a direct coupling of the transistor to the surface of the coil former flange 3 and the yoke leg 7.
  • the invention is also implemented if only partially Parts are made of plastic, for example to improve the Magnetic flux, the core assembly 6 consists of a metal part or metal contact parts are injected.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • General Factory Administration (AREA)

Claims (17)

  1. Relais, comportant
       un corps de bobine (1) composé d'un plastique isolant,
       un ensemble de noyau (6, 7),
       une armature (14),
       au moins un contact fixe (15) et un contact mobile (10) couplé à l'armature (14),
       un enroulement de bobine (11), et
       des éléments de raccordement (9, 8) pour la bobine (11) et le circuit de charge, avec le au moins un contact fixe (15) et le contact mobile (10),
       au moins un autre des éléments électriquement et/ou magnétiquement conducteurs, à l'exception de l'enroulement de la bobine, étant également composé de plastique, en plus du corps de la bobine (1),
       caractérisé en ce que l'ensemble de noyau (6, 7) est composé d'un plastique comportant une substance ferromagnétique, et/ou
       en ce que l'armature (14) est composée d'un plastique contenant une substance ferromagnétique.
  2. Relais selon la revendication 1,
       caractérisé en ce que
       les contacts (10, 15) sont composés d'un plastique contenant une substance conductrice d'électricité.
  3. Relais selon la revendication 1,
       caractérisé en ce que
       les éléments de raccordement (8, 9) sont composé d'un plastique contenant une substance conductrice d'électricité.
  4. Relais selon l'une ou plusieurs des revendications 1 à 3,
       caractérisé en ce que
       le plastique utilisé est un polymère.
  5. Relais selon l'une des revendications 1 à 4,
       caractérisé en ce que
       les éléments de raccordement (8, 9) et les contacts (10, 15) sont au moins partiellement recouverts d'une couche métallique.
  6. Relais selon la revendication 1,
       caractérisé en ce que
       un support d'armature (5) est relié au corps de bobine (1) par un élément de ressort du type charnière vive (4), l'armature (14) supportée par le support d'armature (5) étant ainsi poussée dans une position ouverte.
  7. Relais selon la revendication 6,
       caractérisé en ce que
       des pattes de verrouillage (12) sont agencées sur les raccordements du circuit de charge (8), constituant des éléments de verrouillage à engagement mutuel avec un module d'armature, comprenant le support d'armature (5), l'armature (4) et le contact mobile (10).
  8. Relais selon la revendication 1,
       caractérisé en ce que
       le contact mobile (10) et constitué par un pont de contact, coopérant avec deux contacts fixes (15).
  9. Relais selon la revendication 8,
       caractérisé en ce que
       un module d'armature, comprenant le support d'armature (5), l'armature (14) et le pont de contact (10), comporte près d'une extrémité d'armature libre deux fentes longitudinales (16), le pont de contact (10) étant agencé de sorte que deux bras (19) du pont de contact (10) reposent sur deux sections respectivement externes (17) du module d'armature et sont séparées de la section centrale par les fentes longitudinales (16).
  10. Relais selon la revendication 1,
       caractérisé en ce que
       un semi-conducteur de puissance (18) est monté parallèlement à la section de commutation du relais.
  11. Relais selon la revendication 9,
       caractérisé en ce que
       le semi-conducteur de puissance (18) est relié au relais par une liaison mécanique directe.
  12. Relais selon les revendications 10 ou 11,
       caractérisé en ce que
       le semi-conducteur de puissance (18) est un transistor à effet de champ.
  13. Procédé de fabrication d'un relais selon l'une des revendications 1 à 12,
       caractérisé en ce qu'il englobe les étapes ci-dessous:
    formation d'un corps de bobine (1) à partir d'un plastique isolant,
    addition d'un ensemble de noyau (6, 7) et d'une armature (14),
    addition d'au moins un contact fixe (15), d'un contact mobile (10) et d'éléments de raccordement (8, 9),
    les éléments ajoutés au cours des deuxième et troisième étapes de fabrication étant respectivement agencés sur la pièce moulée au cours de l'étape précédente, et, en plus du corps de bobine (1), au moins l'ensemble de noyau (6, 7) et/ou l'armature étant moulés à partir de plastique.
  14. Procédé selon la revendication 13,
       caractérisé en ce que
       la dernière étape de fabrication citée est réalisée avant l'addition de l'ensemble de noyau et/ou de l'armature.
  15. Procédé de fabrication d'un relais selon les revendications 13 ou 14,
       caractérisé en ce qu'après l'exécution des étapes de fabrication selon la revendication 13, en particulier après l'enroulement de la bobine (11), un module d'armature, comportant un support d'armature (5), l'armature (14) et le contact mobile (10) constituant un prolongement pratiquement droit d'une bride du corps de la bobine (21) est amené au cours d'une étape de fabrication suivante par flexion dans une position, dans laquelle une extrémité libre de l'armature est agencée à proximité immédiate de l'autre bride du corps de la bobine (3) et y est retenue par encliquetage.
  16. Procédé selon les revendications 13 à 15,
       caractérisé en ce que
       le procédé de moulage servant à la fabrication des éléments plastiques est un procédé de moulage par injection.
  17. Procédé selon les revendications 13 à 16,
       caractérisé en ce qu'au cours d'une étape de fabrication ultérieure, les éléments de raccordement (8, 9) et les contacts (10, 15) sont revêtus d'une couche métallique.
EP00936710A 1999-05-07 2000-05-04 Relais electromagnetique et son procede de fabrication Expired - Lifetime EP1177565B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19921254A DE19921254A1 (de) 1999-05-07 1999-05-07 Elektromagnetisches Relais und Verfahren zu dessen Herstellung
DE19921254 1999-05-07
PCT/EP2000/003991 WO2000068963A1 (fr) 1999-05-07 2000-05-04 Relais electromagnetique et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1177565A1 EP1177565A1 (fr) 2002-02-06
EP1177565B1 true EP1177565B1 (fr) 2003-07-09

Family

ID=7907417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00936710A Expired - Lifetime EP1177565B1 (fr) 1999-05-07 2000-05-04 Relais electromagnetique et son procede de fabrication

Country Status (4)

Country Link
EP (1) EP1177565B1 (fr)
AT (1) ATE244926T1 (fr)
DE (2) DE19921254A1 (fr)
WO (1) WO2000068963A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013608A1 (de) * 2004-03-19 2005-10-27 Siemens Ag Auslöserelais
EP2034498B1 (fr) 2007-09-04 2013-11-13 Siemens Aktiengesellschaft Appareil de commutation électromagnétique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528086A (en) * 1946-11-08 1950-10-31 Bell Telephone Labor Inc Relay contacts of conducting rubber
US3784941A (en) * 1972-03-06 1974-01-08 Essex International Inc Relay construction
US4044322A (en) * 1976-07-09 1977-08-23 Essex Group, Inc. Electromagnetic solenoid relay assembly and electrical connection means therefor
JP2781890B2 (ja) * 1989-05-02 1998-07-30 オムロン株式会社 電磁継電器のベースの製造方法

Also Published As

Publication number Publication date
DE50002845D1 (de) 2003-08-14
DE19921254A1 (de) 2001-01-04
EP1177565A1 (fr) 2002-02-06
WO2000068963A1 (fr) 2000-11-16
ATE244926T1 (de) 2003-07-15

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