EP0746007B1 - Relais électromagnétique polarisé - Google Patents

Relais électromagnétique polarisé Download PDF

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Publication number
EP0746007B1
EP0746007B1 EP96108869A EP96108869A EP0746007B1 EP 0746007 B1 EP0746007 B1 EP 0746007B1 EP 96108869 A EP96108869 A EP 96108869A EP 96108869 A EP96108869 A EP 96108869A EP 0746007 B1 EP0746007 B1 EP 0746007B1
Authority
EP
European Patent Office
Prior art keywords
base
relay according
armature
connection
base body
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
EP96108869A
Other languages
German (de)
English (en)
Other versions
EP0746007A3 (fr
EP0746007A2 (fr
Inventor
Heinz Stadler
Michael Dittmann
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 EP0746007A2 publication Critical patent/EP0746007A2/fr
Publication of EP0746007A3 publication Critical patent/EP0746007A3/fr
Application granted granted Critical
Publication of EP0746007B1 publication Critical patent/EP0746007B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
    • H01H51/2281—Contacts rigidly combined with armature
    • H01H51/229—Blade-spring contacts alongside 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
    • H01H50/026—Details concerning isolation between driving and switching circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5888—Terminals of surface mounted devices [SMD]
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements

Definitions

  • a relay of the type mentioned is in WO 94/22156 described.
  • a Cap placed over the bobbin is with the base Formation of a closed housing connected.
  • This well-known Structure is designed for conventional solder connection technology; for stronger mechanical or thermal loads is the connection structure of the base and the bobbin not designed.
  • a rotary armature relay is also already known from DE 27 23 430 A1 known with a body with an H-cross section, the a coil space at the bottom of a contact space the top separates.
  • the connection of this Connection elements in the top contact space is also neither suitable for taking up the pressure load for press-in pins nor can the contact arrangement be of thermal Exposed to surface mounting technology.
  • the aim of the present invention is to provide a polarized relay to constructively construct the type mentioned at the beginning, that on the one hand the isolation between the contacts and the Coil improved and on the other hand the construction as a whole is made more stable so that the desired characteristics of the Relays set in a simpler way and in handling or safer when operating the relay.
  • a basic construction is to be created be different only by installing different Connection elements both for solder pin connection and for SMT connection and suitable for press-in connection.
  • this goal is achieved with the relay structure mentioned achieved in that a base body made of insulating material is provided which is a partition wall parallel to the base plane - with bushings for the yokes - between the anchor and the Coil forms that the base body by means of side walls the base is nested and with this one at least partially closed control room forms and that the main body has a paragraph on either side of the anchor, under which are the contact pins arranged in a row and if necessary as a support area is suitable for these pins.
  • connection pins each in grooves of the base body and fixed there by means of a hardenable sealing compound. So it is possible that after mounting the anchor with an accurate Setting the contact spacing of the base with the Base body connected magnet system on the base so far can be pushed on until the anchor is exactly on the magnet system is present or the specified air gaps to the yokes are reached Has. By pouring in adhesive or potting compound can then on the one hand the base body with the base sealing are connected, the pins in the mentioned Grooving in a previous or simultaneous operation be shed.
  • This control room also has compared to similarly constructed Relays have a very low volume of air because of the coil space is not included. This is particularly beneficial with strong heat, such as when soldering the Relays, especially for reflow soldering of SMT connections.
  • the base body thus forms closed at least around the contact space Side walls, so that the otherwise required housing cap can be omitted.
  • the base body is H-shaped Cross section and so the coil in one up open, trough-shaped coil space.
  • This coil room is expediently wholly or at least partially with Potting compound filled, reducing the rigidity of the construction is further increased.
  • the press tool can be poured directly onto the Press the coil space, the press-in forces over the Base body to be transferred to the pins and a There is no need to fear impairment of the adjustments in the relay is.
  • a cover plate can be attached.
  • This can be metallic be or have a metallic outer layer, in particular to act as a heat shield for surface mounting (SMT).
  • the relay shown in Figures 1 to 3 consists essentially from a base 1 with one over the base pivotably arranged armature 3.
  • a base body 5 takes the Base 1 from below and forms a closed one with it Contact space 4.
  • the base body 5 forms a coil space 6 open at the top, in which a coil 7 is inserted becomes.
  • the base 1 has a flat bottom 11, which is the base plane of the relay defined, as well as partially raised peripheral sides 12.
  • connection pins at the bottom 15 integrally formed, which usually serve as solder connections.
  • the armature 3 consists of an essentially elongated one ferromagnetic sheet, the one in its central section upward curved bearing curvature 31 to define a transverse has its rolling axis extending to its longitudinal extent.
  • the two wings of the anchor define in their end sections each pole faces 32.
  • a movable contact arrangement is located below the armature an insulating jacket 33 arranged in the two elongated Contact springs 34 embedded in a plane next to each other are such that their ends are each below the anchor ends are exposed and there movable Wear contacts 35 with the underlying fixed contacts 14 work together.
  • Each contact spring has an im Side area emerging from the envelope 33 in the area the anchor bearing is arched and into one vertical position angled bearing band 36, which with a corresponding fastening section 37 to an associated one Contact spring pin 16 welded or on otherwise connected to it in a conductive manner.
  • the insulation covering 33 has pegs 38 formed upwards, which is inserted through holes in the armature 3 and at its Top are deformed so that the movable contact arrangement with the contact springs 34 firmly connected to the armature 3 and thus takes part in its switching movement.
  • the anchor 3 on the base 1 is first on suitable Way the desired contact distance between the movable Contacts 35 and the fixed contacts 14 set before the Bearing tapes 36 are connected to the connecting pins 16.
  • the base body 5 made of insulating material has one generally H-shaped cross section with a to the base plane parallel partition 51 and circumferential side walls 52 which together with the partition 51 down the mentioned Switch room 4 and form the coil room 6 upwards.
  • two openings 53 are recessed, in which two ferromagnetic yokes 54 inserted vertically become.
  • a rod-shaped permanent magnet 55 between clamping ribs 56 (see Figure 3) attached.
  • the permanent magnet has three poles magnetized so that it is centered over the anchor axis Permanent magnetic pole (N) and two opposite ends at both ends Pole (S) generated.
  • the coil 7 has a coil body 71 made of insulating material, on which a winding 73 is arranged between flanges 72 is. In an axial through opening of the coil body a core 74 is arranged. In addition, 72 are each in the flanges Coil connector pins 75 anchored.
  • the coil 7 is inserted into the coil space 6 from above of the base body used, the coil terminal pins 75 inserted through corresponding holes 58 of the base body become. Then the coil in the base body with potting compound fixed, the yokes 54 and the permanent magnet 55 be glued. The bushings are also tight locked. By filling the coil space 6 with potting compound creates a very stable bond that also has high mechanical Able to absorb forces.
  • a plate 76 is placed on a flat Provides surface for labeling.
  • the plate can be made of metal exist or be coated with metal so that they forms a heat shield when the relay is in, for example SMT assembly is exposed to strong heat radiation.
  • the base 1 pre-assembled with the anchor 3 in the Control room 4 of the base body used, the side walls 52 of the base body box-shaped over the side walls Grab 12 of the base.
  • the base 1 is inserted as far as that the bearing curvature 31 more or less on the permanent magnet 55 is present and the anchor optionally on one of the yokes can concern.
  • the switching mobility of the armature can be checked by ventilation openings 17 (in Figure 8 to see) a test pin is inserted and the Switching movement measures.
  • two ventilation or Test openings 17, one under each anchor wing, are provided. These are each in the middle between the two contact springs in the area of a raised insulating web 18.
  • each formed a groove 63 that of the outer wall 52 of the base body and one Wall web 59 is limited.
  • This wall web 59 forms at the same time insulation between the metal parts of the anchor and the connecting elements or bearing strips 36 of the contact springs.
  • FIG 4 there is one Embodiment of pins 20 shown in the Base area through the injected board of the contact carrier 13 inserted and in openings 13a in a suitable manner is contacted with this.
  • the connector pins 20 with a rectangular Cross sections are at their upper end portion 21 in the casting compound 60 anchored and with its lower end in each case bent outwards in the form of SMT connecting lugs 22.
  • round pins 23 are in the same way Anchored base and contacted with the carrier board 13.
  • the upper end portions 24 are also here in the Potting compound 60 anchored while the lower ends in this Case are deformed to press-in handles 25.
  • press-fit zones are considered here;
  • round the press-in pins instead of the one shown Cross section also a rectangular cross section as in Figure 4 or have another cross-sectional shape.
  • the relay according to FIGS. 4 and 5 is the same or similar constructed like the one shown before; minor modifications are possible within the scope of the invention.
  • a particularly simple way of fastening and contacting the pins 20 and 23 is that in the Contact carrier 13 forming plate openings 13a recessed are that have a slightly smaller cross section than that pins 20 or 23 to be inserted depending on the cross-sectional shape of the pins, these openings 13a are round or rectangular designed.
  • the recesses lla in the base 1 or in the In contrast, base base 11 are somewhat larger in cross section than the pins 20 and 23, so that the edge of the openings 13a there is something exposed around the pens.
  • FIG 5 is in the right half of the anchor representation a laterally protruding bearing pin 41 is shown, that in a bearing shell 61 of the base body or of the wall web 59 lies.
  • the anchor can, if necessary, more precisely compared to the base body and the permanent magnet 55 be positioned.
  • the storage is therefore more independent of the shape and properties of the bearing tapes 36.
  • These bearing tapes In this case, 36 are unnecessary and can be replaced by a simple flexible connection section 42 can be replaced, as shown in Figures 6 and 7.
  • the area of anchor storage from Figure 6 is again in Figure 9 in detail shown, here the cut a little outwards into the side wall of the base body is laid around the bearing shell 61 to show.
  • the meandering connecting section 42 has in in this case an integrally molded connecting pin 43, which is led through an opening 19 of the base to the outside. Through a locking pin 62 formed on the base body the opening 19 is closed and the pin 43 is fixed.
  • the bearing section is again schematized in FIG of the anchor shown from the side. In this case, one is simple angled connection section 42 with an additional molded closure piece 44 provided with the Connector pin is inserted into the opening 19 of the base and closes it.
  • connection section is 42 in its horizontal and diagonally upward part encapsulated by the sheath 33 of the contact arrangement, so that only the vertical part is springy.
  • closure piece 44 is sprayed onto the connection section.
  • FIG. 12 shows that a meandering or other shaped connection section 42 instead of a molded thin pin also with a solid connecting pin anchored in the base 23, similar to that in FIG. 5, can be connected.
  • the connector pin In this case, 23 is through a recess 45 of the connecting section 42 inserted and not shown in detail Way connected to this.
  • FIGS. 13 and 14 show a further modification in two Detail views shown, the anchor over a bearing journal 41 is stored as before and the contact springs each via a connecting section 42, which is parallel as a torsion bar to the bearing axis from the anchor to the outside, with a round pin 23 are connected.
  • FIG. 15 Another modification of the anchor bearing is in the figures 15 and 16 are shown, largely as shown in the figures 6 and 7 correspond.
  • modification of the embodiment there 15 is the anchor here according to FIG additional bearing piece 46 stored on the permanent magnet 55, the forms a bearing cutting edge 47.
  • the anchor has one in its Axial area molded bearing notch 48, which as well the bearing edge has an obtuse angle or can also be rounded.
  • the contact springs 34 are in this case via a meandering connecting section 42 connected to a pin 23.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (20)

  1. Relais électromagnétique polarisé comprenant
    un socle (1) en matière isolante, qui définit un plan de base par son côté inférieur (11) et dans lequel sont ancrés des supports (13) de contacts fixes (14) ainsi que des broches de sortie de contact (15, 16 ; 20 ; 23 ; 43),
    une armature à bascule (3) disposée au dessus du socle (1), qui est logée au milieu des deux côtés avec un axe de rotation parallèle au plan de base,
    une bobine (7) disposée au-dessus de l'armature (3) avec un axe parallèle au plan de base, perpendiculaire à l'axe de rotation de l'armature,
    un noyau (74) disposé axialement dans la bobine avec des culasses (54) orientées vers le bas aux deux extrémités perpendiculairement au plan de base, qui forment à chaque fois des interstices de travail avec les extrémités de l'armature (32),
    un dispositif à aimant permanent (55), qui génère dans les culasses (54) des pôles magnétiques de mêmes polarités (S) et au dessus de l'axe de rotation de l'armature un pôle magnétique de polarité inverse à ceux-là (N), et - un dispositif à ressort de contact (34) relié solidement à l'armature (3) par une enveloppe en matière isolante (33), qui coagit avec les contacts fixes (14) du socle (1) suivant le mouvement de l'armature,
    caractérisé en ce qu'est prévu un corps de base (5) en matière isolante, qui forme une paroi de séparation (51) parallèle au plan de base - avec des passages (53) pour les culasses (54) - entre l'armature (3) et la bobine (7),
    en ce que le corps de base (5) est emboíté avec le socle au moyen de parois latérales (52) et forme avec celui-ci un espace de commande (4) au moins partiellement fermé et
    en ce que le corps de base (5) présente des deux côtés de l'armature (3) un épaulement (57), sous lequel se trouvent les broches de sortie de contact (15, 16 ; 20 ; 23) disposées à chaque fois en rang et qui est adapté, si nécessaire, comme zone d'appui pour ces broches de sortie.
  2. Relais selon la revendication 1, caractérisé en ce que le corps de base (5) présente une section transversale essentiellement en forme de H, la bobine (7) étant disposée dans un espace de bobine (6) en forme de cuve, ouvert vers le haut.
  3. Relais selon la revendication 2, caractérisé en ce que la bobine (7) située dans l'espace de bobine (6) est encastrée au moins partiellement dans une masse de remplissage.
  4. Relais selon la revendication 2 ou 3, caractérisé en ce que l'espace de bobine (6) est fermé sur le côté supérieur par une plaque de recouvrement (76).
  5. Relais selon la revendication 4, caractérisé en ce que la plaque de recouvrement (76) comprend du métal au moins dans une couche supérieure.
  6. Relais selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif à aimant permanent comprend un aimant permanent en forme de barre, magnétisé tripolaire (55), qui est fixé dans le corps de base (5) au-dessous de la paroi de séparation (51) entre les culasses (54).
  7. Relais selon la revendication 6, caractérisé en ce que l'aimant permanent (55) est serré entre des sections de paroi verticales (56) du corps de base (5).
  8. Relais selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif à ressort de contact comprend deux ressorts de contact (34) disposés dans un plan, chaque ressort de contact présentant à chaque fois une section de connexion souple (36 ; 42) guidée latéralement dans la zone de support de l'armature (3), qui est reliée par une broche de sortie (16, 20 ; 23) ancrée dans le socle (1).
  9. Relais selon la revendication 8, caractérisé en ce que les sections de connexion (36) servent en même temps comme bande d'appui pour l'armature (3).
  10. Relais selon la revendication 8, caractérisé en ce que sur l'enveloppe isolante (33) reliée à l'armature, des tourillons horizontaux (41) sont à chaque fois formés latéralement dans la zone d'appui de l'armature, lesquels se trouvent dans des coussinets correspondants (61) du corps de base (5).
  11. Relais selon la revendication 10, caractérisé en ce que les sections de connexion (42) des ressorts de contact (34) forment à chaque fois des broches de sortie formées d'une seule pièce (43), lesquelles sont guidées vers l'extérieur par des ouvertures (19) du socle (1).
  12. Relais selon l'une des revendications 1 à 11, caractérisé en ce que, dans le socle (1), des pistes conductives d'une platine découpée à l'avance encastrées dans un plan forment à chaque fois des supports (13) pour les contacts fixes (14), le cas échéant des sections de connexion courbées vers le haut (16a) pour les ressorts de contact et des broches de sortie guidées perpendiculairement vers le bas (15 ; 16 ; 43).
  13. Relais selon l'une des revendications 1 à 11, caractérisé en ce que, dans le socle (1), des pistes conductives encastrées dans un plan forment à chaque fois des supports (13) pour les contacts fixes et en ce que des broches de sortie (20 ; 23) se dressant perpendiculairement au plan de base sont reliées en traversant le plan des pistes conductives à celles-ci et s'appuient par leurs extrémités supérieures (21) sur l'épaulement (57) du corps de base (5).
  14. Relais selon la revendication 13, caractérisé en ce que les extrémités des broches de sortie (23) débordant sur le côté inférieur du socle sont sous forme de tiges à encastrer (25).
  15. Relais selon la revendication 12 ou 13, caractérisé en ce que, sur le côté inférieur du socle, les extrémités sortantes des broches de sortie (20) sont sous forme de languettes de connexion SMT (22).
  16. Relais selon l'une des revendications 13 à 15, caractérisé en ce que les sections d'extrémité supérieures (21 ; 24) des broches de sortie (20 ; 23) pénètrent dans la zone d'épaulement (57) du corps de base dans une encoche ouverte vers le bas (58) et sont fixées dans celle-ci par une masse de remplissage durcie (60).
  17. Relais selon l'une des revendications 1 à 16, caractérisé en ce qu'une ouverture de contrôle et de ventilation (17) est à chaque fois prévue dans le socle (1) au-dessous de chaque aile d'armature (3 ; 32).
  18. Relais selon la revendication 11, caractérisé en ce que les languettes de connexion présentent à chaque fois dans la zone située entre l'enveloppe (33) et leur passage à travers l'ouverture (19) du socle, une section en forme de méandre (42).
  19. Relais selon la revendication 11 ou 18, caractérisé en ce que les languettes de connexion (43) des ressorts de contact (34) sont enveloppés à chaque fois d'un bouchon de fermeture (44), qui ferme l'ouverture (19) dans le socle.
  20. Relais selon la revendication 11 ou 18, caractérisé en ce que les languettes de connexion (43) des ressorts de contact (34) sont fixés avec un tourillon de fermeture (62) faisant saillie vers le bas du corps de base (5) dans l'ouverture (19) du socle.
EP96108869A 1995-06-01 1996-05-29 Relais électromagnétique polarisé Expired - Lifetime EP0746007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520220A DE19520220C1 (de) 1995-06-01 1995-06-01 Polarisiertes elektromagnetisches Relais
DE19520220 1995-06-01

Publications (3)

Publication Number Publication Date
EP0746007A2 EP0746007A2 (fr) 1996-12-04
EP0746007A3 EP0746007A3 (fr) 1998-04-15
EP0746007B1 true EP0746007B1 (fr) 2000-04-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108869A Expired - Lifetime EP0746007B1 (fr) 1995-06-01 1996-05-29 Relais électromagnétique polarisé

Country Status (4)

Country Link
US (1) US5673012A (fr)
EP (1) EP0746007B1 (fr)
JP (1) JPH08329810A (fr)
DE (2) DE19520220C1 (fr)

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DE102011083953A1 (de) * 2011-10-04 2013-04-04 Tyco Electronics Amp Gmbh Fixier- und Überwachungsvorrichtung

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DE19719355C1 (de) * 1997-05-07 1998-11-05 Siemens Ag Polarisiertes elektromagnetisches Relais
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US7111929B2 (en) * 2001-08-14 2006-09-26 Hewlett-Packard Development Company, Lp Magnetically-actuated fluid control valve
DE102011089251B4 (de) * 2011-12-20 2014-05-22 Siemens Aktiengesellschaft Auslöseeinheit zum Betätigen einer mechanischen Schalteinheit einer Vorrichtung
DE102012006436B4 (de) 2012-03-30 2020-01-30 Phoenix Contact Gmbh & Co. Kg Gepoltes elektromagnetisches Relais und Verfahren zu seiner Herstellung
JP6115195B2 (ja) * 2013-03-08 2017-04-19 オムロン株式会社 電磁継電器
KR20210020336A (ko) * 2019-08-14 2021-02-24 현대자동차주식회사 릴레이

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Also Published As

Publication number Publication date
DE59604985D1 (de) 2000-05-25
DE19520220C1 (de) 1996-11-21
EP0746007A3 (fr) 1998-04-15
EP0746007A2 (fr) 1996-12-04
JPH08329810A (ja) 1996-12-13
US5673012A (en) 1997-09-30

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