EP0140285B1 - Relais électromagnétique et méthode pour sa fabrication - Google Patents

Relais électromagnétique et méthode pour sa fabrication Download PDF

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Publication number
EP0140285B1
EP0140285B1 EP84112527A EP84112527A EP0140285B1 EP 0140285 B1 EP0140285 B1 EP 0140285B1 EP 84112527 A EP84112527 A EP 84112527A EP 84112527 A EP84112527 A EP 84112527A EP 0140285 B1 EP0140285 B1 EP 0140285B1
Authority
EP
European Patent Office
Prior art keywords
tongue
contact
armature
relay
grooves
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
Application number
EP84112527A
Other languages
German (de)
English (en)
Other versions
EP0140285A1 (fr
Inventor
Helmut Dipl.-Ing. Schedele (Fh)
Josef Schweiger
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
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to AT84112527T priority Critical patent/ATE25787T1/de
Publication of EP0140285A1 publication Critical patent/EP0140285A1/fr
Application granted granted Critical
Publication of EP0140285B1 publication Critical patent/EP0140285B1/fr
Expired 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
    • 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
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • 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
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • the invention relates to an electromagnetic relay with a coil body serving as a base body and with an armature or contact tongue arranged in an axial cavity of the base body, which is fastened with its fastening end via lateral fastening tabs in grooves of a first coil flange and with its free end in the region of a second coil flange between pole plates or counter-contact elements is switchable. Furthermore, the invention relates to a method for producing such a relay.
  • a relay of the type specified above is known for example from DE-A-26 25 203.
  • the anchor tongue is pressed into the grooves of a coil flange with its fastening end and thus fastened in a press fit. Because of the inevitable manufacturing tolerances on the individual parts, however, an adjustment after assembly is necessary, which is only possible in the relay there by bending the permanently mounted contact tongue by means of a mechanically attacking bending tool.
  • the object of the invention is to provide a relay of the type mentioned, which is constructed with a few simple parts, which can be aligned so precisely during manufacture that a subsequent adjustment is no longer necessary.
  • a method for producing this relay is to be specified, the relay being able to be adjusted during assembly and without an additional work step, and in particular contactless adjustment being possible.
  • the first-mentioned object is achieved in that the thickness of the fastening tabs is substantially less than the width of the grooves accommodating them in the first coil flange and that the fastening tabs in the adjusted position of the armature or contact tongue are filled by a space which fills the remaining space in the grooves, solidified adhesive are fixed.
  • the contact or armature tongue is therefore inserted with its fastening end into grooves in the coil body flange, but is not finally fixed directly to the contours of the coil body by embedding or by a press fit. Since the fastening tabs lie with play in the grooves of the coil body and are only finally fixed by the adhesive introduced during assembly, it is possible to bring the anchor or contact tongue into the desired position and in this position during the introduction and curing of the adhesive Hold the position briefly until the adhesive has hardened.
  • the armature or contact tongue between the actual tongue and the fastening tabs on both sides expediently has first retaining webs, the edges of which facing the coil body rest against webs of the coil body formed in the region of the slots.
  • the anchor or contact tongue is connected in one piece at its fastening end via second retaining webs to a river transition plate lying perpendicular to the longitudinal extension of the tongue.
  • a connecting spike can also be formed directly on the river transition plate.
  • the flow transition plate is expediently in a recess in the coil flange, so that the relay can be sealed by applying a film to the river transition plate and to adjacent areas of the coil flange. Furthermore, it is expedient that the grooves receiving the fastening tabs in the coil body each lead to the outside in a widened chamber, which are filled with potting compound when the relay is potted, so that the parts of the mounting tabs located in these chambers are additionally fixed.
  • a method for producing the relay according to the invention is characterized in that the armature or contact tongue is first inserted loosely with its fastening tabs into the grooves, that the free end of the armature or contact tongue is in a defined position relative to the pole plate (s) ) or counter-contact element (s) and held in this position while an adhesive is filled into the grooves and brought to solidify or harden.
  • the armature or contact tongue is held with its free end in a central position between two pole plates and fixed in this position.
  • the adjustment of the armature or contact tongue in this central position or in a desired one-sided contact on one of the pole plates or Counter-contact elements can be done, for example, with mechanical or magnetic aids.
  • a method is particularly advantageous in which the armature or contact tongue is brought into the defined position by means of an air flow generated in the cavity of the base body and is held in this position until the adhesive solidifies.
  • This air flow can be generated by a blowing device directed at the fastening end of the armature or contact tongue.
  • the generation of the air flow by means of a suction device arranged in front of the free end of the anchor or contact tongue is even more advantageous, since in this case the introduction of the adhesive at the fastening end is easier.
  • the relay shown in FIGS. 1 to 3 has as its base body a coil body 1 with a winding 2, the coil body having an opening 3 which is continuous in the axial direction.
  • a ferromagnetic armature and contact tongue 4 is arranged in the axial direction, which is anchored with its fastening end 4a in a coil flange 5 and with its free end 4b, which is forked for double contact, can be switched between two pole plates 7 and 8 in the area of the other coil flange 6 .
  • a four-pole permanent magnet 10 is coupled to the pole plates 7 and 8 with the interposition of an insulating and sealing film 9.
  • This permanent magnet 10 has two oppositely parallel polarization directions, such that unequal poles rest on the two pole plates and the opposite poles are coupled to an externally adjacent flux guide plate 11.
  • the armature and contact tongue 4 has at its fastening end 4a on both sides formed by fastening webs 12 fastening tabs 13, which lie in one plane with the actual tongue section and are fastened in grooves 14 of the bobbin flange 5.
  • a flux transition plate 16 is integrally formed thereon via the fastening tabs 13 and retaining webs 15, which lies in a flat recess 17 of the coil flange 5 and forms a connecting pin 18 at the bottom (see also FIG. 4).
  • a U-shaped flux guide plate 20 is coupled, which is shaped in exactly the same way as the flux guide plate 11.
  • the assembly and adjustment of the relay will now be explained in more detail with reference to FIGS. 4 and 5.
  • the bobbin 1 shown in Fig. which is already provided with injected pins 21, is first provided with the winding, not shown in Fig. 4, and then the contact tongue 4 from one side (in Fig. 4 from the left) into the continuous Coil body opening 3 inserted.
  • the contact tongue 4 is cut free in the region of the fastening webs 12 and reduced in cross section by recesses 22, as a result of which it is decoupled from its clamping point and has a soft spring characteristic.
  • the fastening tabs 13 are loose and with play in the grooves 14 of the coil former flange 5, since the grooves are wider than the material thickness of the fastening tabs 13.
  • the contact tongue 4 lies with the two edges 23 of the fastening webs 12 facing the coil former in the region of the grooves 14 formed webs 24 of the bobbin flange, so that this creates an axis of rotation about which the armature or contact tongue 4 and also the fastening tabs 13 are pivotable and freely movable.
  • this does not have to be a bearing notch or bearing cutting edge; rather, the contact tongue 4 with the edges 23 can also slip on the webs 24 in order to be exactly in the middle of the coil former opening 3. to align.
  • FIG. 5 The adjustment and fastening process is shown in FIG. 5.
  • an air flow 26 is generated along the inserted contact tongue 4 with a suction nozzle arranged in front of its free end 4b, which air stream precisely aligns the contact tongue 4. If the suction nozzle 25 is arranged exactly in the middle between the pole faces 7a and 8a of the two pole plates 7 and 8, the free end of the contact tongue also aligns itself exactly in the middle. If you move the suction nozzle to one side, the air flow becomes unsymmetrical and the contact tongue is aligned to one of the two pole plates.
  • a certain amount of fast-curing adhesive 28 is added to the fastening end 4a by means of a metering device 27 into the grooves 14, where it creates the free space between the fastening tabs under the capillary action 13 and fills the side walls of the grooves 14 and holds the contact tongue 4 in the adjusted position after curing in a few seconds.
  • the coil body is held in the vertical arrangement shown in FIG. 5, so that the contact tongue hangs downward.
  • the coil former flange 5 has a bead 29, the height of which is equal to the thickness of this plate 16. This bead surrounds the coil former opening 3 and a getter chamber 30 connected to it. In two slots 31 in this bead 29 the fastening webs 12 of the contact tongue 4 are inserted in such a way that protruding lugs 32 of the contact tongue 4 are flush with the surface of the bead 29. After the previously described adjustment and fastening of the contact tongue 4, a getter 33 is introduced into the getter chamber 30, and then the already mentioned insulating and sealing film 19 is glued onto the flat surface formed by the flow transition plate 16 and the bead 29 together with the lugs 32 .
  • the relay is cast in a mold or embedded in an insulating casting compound 34, so that an additional protective cap is unnecessary.
  • the coil body flange also has, in connection with the grooves 14, enlarged chambers 35, into which the casting compound flows and thereby fixes the sections of the fastening tabs 13 located in these chambers.
  • the potting compound can also penetrate through the capillary action into the slots 31 next to the fastening webs 12, but it can then no longer penetrate into the interior or the opening 3 of the coil former, since the capillary action stops at the edge of the slots 31.
  • the contact tongue also has a recess 36 between the two lugs 32, so that the contact tongue does not abut the film 19 in this area.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Burglar Alarm Systems (AREA)

Claims (12)

1. Relais électromagnétique comportant un corps de bobine (1) utilisé comme corps de base, et une languette d'armature ou de contact fixée d'un côté dans une cavité axiale (3) du corps de base (1) et qui est fixée, par son extrémité de fixation (4a), par l'intermédiaire de pattes latérales de fixation (13), dans des rainures (14) d'un premier flasque de bobine (5) et qui peut être commutée, par son extrémité libre (4b), dans la région du second flasque de bobine (6), entre des tôles polaires (7, 8) ou des éléments de contact antagonistes, caractérisé par le fait que l'épaisseur des pattes de fixation (13) est nettement inférieure à la largeur des rainures (14), qui reçoivent ces pattes et qui sont ménagées dans le premier flasque de bobine (5), et que les pattes de fixation (13) sont fixées par une colle solidifiée (28) remplissant l'espace existant dans les rainures (14), lorsque la languette d'armature ou de contact est dans sa position ajustée.
2. Relais suivant la revendication 1, caractérisé par le fait que la languette d'armature ou de contact (14) comporte, entre la languette (4) proprement dite et les pattes de fixation (13) situées des deux côtés, des premières barrettes de retenue (12), dont les bords (23), tournés vers le corps de bobine, sont appliqués contre des barettes (24) réalisées au voisinage des rainures (14) du corps de bobine (1).
3. Relais suivant la revendication 1 ou 2, caractérisé par le fait que la languette d'armature ou de contact (4) est reliée d'un seul tenant, au niveau de son extrémité de fixation (4a), et par l'intermédiaire de secondes barrettes de retenue (15), à une tôle de passage du flux (16) perpendiculaire à la direction longitudinale de la languette (4).
4. Relais suivant la revendication 3, caractérisé par le fait qu'un dard de liaison (18) est formé par façonnage sur la tôle de passage du flux (16).
5. Relais suivant la revendication 3 ou 4, caractérisé par le fait que la tôle de passage du flux (16) est située dans un renfoncement (17) du flasque de bobine.
6. Relais suivant l'une des revendications 1 à 5, caractérisé par le fait que les rainures (14) ménagées dans le corps de bobine (1) débouchent, en direction de la face extérieure, dans des chambres respectives élargies (35), qui sont remplies d'une masse de scellement (34) lors du scellement du relais, de sorte que les parties, situées dans ces chambres (35), des pattes de fixation (13) sont fixées d'une manière supplémentaire.
7. Procédé pour fabriquer un relais suivant la revendication 1, caractérisé par le fait qu'on enfiche tout d'abord la languette d'armature ou de contact (4) de façon lâche et par ses pattes de fixation (13) dans les rainures (14), qu'on amène l'extrémité libre (4b) de la languette d'armature ou de contact (4) dans une position définie par rapport à la ou aux tôles polaires ou aux éléments de contact antagonistes, et qu'on la maintient dans cette position, tout en introduisant une colle (28) dans les rainures (14) et en laissant solidifier cette colle.
8. Procédé suivant la revendication 7, caractérisé par le fait qu'on maintient la languette d'armature ou de contact (4) dans une position médiane entre deux tôles polaires (7, 8) et qu'on la fixe dans cette position.
9. Procédé suivant la revendication 7 ou 8, caractérisé par le fait qu'on amène la languette d'armature ou de contact (14) au moyen d'un courant d'air (26), produit dans la cavité (3) du corps de base (1), dans la position définie et qu'on la maintient dans cette position jusqu'au durcissement de la colle.
10. Procédé suivant la revendication 9, caractérisé par le fait qu'on produit le courant d'air (26) au moyen d'un dispositif d'aspiration (25) disposé en amont de l'extrémité libre (4a) de la languette d'armature ou de contact.
11. Procédé suivant la revendication 9, caractérisé par le fait que le courant d'air est produit par un dispositif de soufflage qui est dirigé sur l'extrémité de fixation de la languette. d'armature ou de contact.
12. Procédé suivant la revendication 7 ou 8, caractérisé par le fait qu'on amène la languette d'armature ou de contact à l'aide de moyens mécaniques ou magnétiques dans la position déterminée et qu'on la maintient dans cette position jusqu'au durcissement de la colle.
EP84112527A 1983-10-20 1984-10-17 Relais électromagnétique et méthode pour sa fabrication Expired EP0140285B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112527T ATE25787T1 (de) 1983-10-20 1984-10-17 Elektromagnetisches relais und verfahren zu dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338198 1983-10-20
DE19833338198 DE3338198A1 (de) 1983-10-20 1983-10-20 Elektromagnetisches relais und verfahren zu dessen herstellung

Publications (2)

Publication Number Publication Date
EP0140285A1 EP0140285A1 (fr) 1985-05-08
EP0140285B1 true EP0140285B1 (fr) 1987-03-04

Family

ID=6212362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112527A Expired EP0140285B1 (fr) 1983-10-20 1984-10-17 Relais électromagnétique et méthode pour sa fabrication

Country Status (5)

Country Link
US (1) US4577172A (fr)
EP (1) EP0140285B1 (fr)
JP (1) JPS60107227A (fr)
AT (1) ATE25787T1 (fr)
DE (2) DE3338198A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445504B (sv) * 1984-11-13 1986-06-23 Tocksfors Verkstads Ab Reletungenhet
US4672344A (en) * 1985-04-19 1987-06-09 Siemens Aktiengesellschaft Polarized electromagnetic relay
DE3538636A1 (de) * 1985-10-30 1987-05-07 Siemens Ag Elektromagnetisches relais
DE3674554D1 (de) * 1985-12-05 1990-10-31 Siemens Ag Verfahren zur justierfreien herstellung eines elektromagnetischen relais.
EP0334336B1 (fr) * 1988-03-25 1993-09-29 Siemens Aktiengesellschaft Relais électromagnétique polarisé à contacts multiples
DE8906678U1 (de) * 1989-05-31 1990-09-27 Siemens AG, 1000 Berlin und 8000 München Polarisiertes Ankerkontaktrelais
DE102007025338B4 (de) * 2007-05-31 2015-02-05 Tyco Electronics Amp Gmbh Verfahren zum Abdichten eines Gehäuses und elektrische Komponente
CN105047483B (zh) * 2015-05-18 2017-11-21 厦门宏发汽车电子有限公司 一种单线圈磁保持继电器
CN106558454B (zh) * 2016-11-24 2018-07-17 厦门宏发汽车电子有限公司 一种继电器/断路器的金属零件与塑料零件之间的固定结构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670281A (en) * 1971-04-05 1972-06-13 Robertshaw Controls Co Thermally responsive switch and method for making the same
FR2314576A1 (fr) * 1975-06-11 1977-01-07 Matsushita Electric Works Ltd Relais a lame
DE2647203C3 (de) * 1976-10-19 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Miniaturrelais
DE2723219C2 (de) * 1977-05-23 1985-01-17 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
DE2701230C3 (de) * 1977-01-13 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais und Verfahren zu dessen Justierung
CH622382A5 (en) * 1977-01-13 1981-03-31 Siemens Ag Electromagnetic relay and method for adjusting it
DE2931409C2 (de) * 1979-03-30 1990-05-10 Hans 8024 Deisenhofen Sauer Gepoltes Zungenkontaktrelais
FR2456381A1 (fr) * 1979-05-09 1980-12-05 Telephonie Ind Commerciale Procede de montage d'un relais
DE3100817A1 (de) * 1981-01-13 1982-08-12 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches relais

Also Published As

Publication number Publication date
JPS60107227A (ja) 1985-06-12
DE3462561D1 (en) 1987-04-09
US4577172A (en) 1986-03-18
EP0140285A1 (fr) 1985-05-08
ATE25787T1 (de) 1987-03-15
DE3338198A1 (de) 1985-05-02
JPH0521289B2 (fr) 1993-03-24

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