EP0133582A2 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0133582A2
EP0133582A2 EP84109509A EP84109509A EP0133582A2 EP 0133582 A2 EP0133582 A2 EP 0133582A2 EP 84109509 A EP84109509 A EP 84109509A EP 84109509 A EP84109509 A EP 84109509A EP 0133582 A2 EP0133582 A2 EP 0133582A2
Authority
EP
European Patent Office
Prior art keywords
armature
yoke
contact
leg
core yoke
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.)
Granted
Application number
EP84109509A
Other languages
German (de)
English (en)
Other versions
EP0133582B1 (fr
EP0133582A3 (en
Inventor
Helmut Dipl.-Ing. Schedele
Rolf-Dieter Dipl.-Phys. Kimpel
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 AT84109509T priority Critical patent/ATE26362T1/de
Publication of EP0133582A2 publication Critical patent/EP0133582A2/fr
Publication of EP0133582A3 publication Critical patent/EP0133582A3/de
Application granted granted Critical
Publication of EP0133582B1 publication Critical patent/EP0133582B1/fr
Expired 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
    • H01H50/54—Contact arrangements
    • H01H50/548—Contact arrangements for miniaturised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements

Definitions

  • the invention relates to an electromagnetic relay with a coil-carrying coil body or base body, a core yoke embedded with its central portion in the base body, which has a yoke leg extending at both ends outside the coil winding and with a yoke leg mounted transversely to the coil axis U-shaped armature, which surrounds the coil winding with its central part parallel to the coil axis and with its two side legs substantially perpendicular to the coil axis.
  • Such a relay is known for example from DE-OS 29 26 142.
  • a bow-shaped armature is supported with both ends on a bow-shaped core so that it executes pivoting movements approximately around the coil axis. So that the anchor in the dropped system does not short-circuit the yoke in the system there, additional non-magnetic bearing elements must be provided in the bearing area.
  • this known relay still contains a relatively large number of individual parts in order to transmit the armature movement to the contact spring via an actuator. However, this means that both the volume and the manufacturing outlay for this known relay are still relatively high.
  • the object of the invention is to construct a relay with a simple but effective magnet system and with a contact unit so that with a few simple parts a compact ' structure and thus a ge Ring volume is achieved, with the same basic structure by slight modification of individual parts, both an upright installation and a flat installation of the rectangular relay is possible.
  • this object is achieved in a relay of the type mentioned in that the armature with its first side leg on the first yoke leg is pivotally mounted about an axis perpendicular to the coil axis and forms a working air gap with its second side leg relative to the second yoke leg and that on the An anchor middle part is attached to a contact spring which, with its free end carrying a contact piece, engages around the armature and the core yoke in a U-shape and interacts with at least one mating contact plate anchored in the coil former on the side of the core yoke opposite the armature.
  • the inventive design of the core yoke and the armature and their arrangement relative to one another results in a very large coupling area in relation to the overall size of the relay between armature and core, as a result of which high contact forces can be achieved with low excitation of the response.
  • the number of individual parts required is kept low by the direct connection of the contact spring to the armature, the relative actuation of the contacting end in two directions being made possible by the direct actuation of the contact spring on the armature and by its U-shaped bend toward the contact point that the friction thus achieved enables good self-cleaning of the contact surfaces even at very low switching currents.
  • the opposite arrangement of armature and contact unit on both sides of the core yoke is also particularly favorable. In this way, the free spaces specified by the coil winding and the core yoke are optimally used.
  • the contact spring also serves as a bearing spring for the armature and is connected to both the armature and the core yoke for this purpose.
  • This connection can be made, for example, by riveting or welding.
  • the contact spring has an integrally formed connecting lug in an extension of the connection point with the core yoke.
  • a connecting lug can also be provided which is molded onto the core yoke and possibly reduced in cross-section by stamping.
  • the contact spring In order to achieve a restoring effect of the contact spring on the armature, it advantageously has integrally formed and cut-free spring legs, by means of which it engages around the first yoke leg and the first side leg of the armature in a clamp-like manner.
  • the contact spring can also have a stop tab to absorb bounce when the armature falls off.
  • the contact spring extends obliquely to the direction of movement of the second side leg of the armature in the section that laterally encompasses the armature.
  • the relay has two mating contact plates on the side of the core yoke opposite the armature, which are fastened in parallel to one another and to the core yoke in grooves in the base body, the contacting end of the contact spring being movable between their contact surfaces.
  • the mating contact plates extend between their fastening grooves essentially over the entire coil length, as a result of which not only a very precise fixing of the mating contact plates but also good heat dissipation is achieved.
  • the arrangement of the slots in the bottom is selected so that the insertable mating contact elements can optionally have connecting lugs in the extension of the insertion level or perpendicular to the insertion level. The relay can thus be manufactured either for upright or for flat installation.
  • the relay shown in FIGS. 1 to 6 has a so-called standing embodiment, ie the connecting pins are led out of the housing in such a way that the cuboidal relay is upright in its installed position and has a small footprint.
  • the relay has a coil body or base body 1 made of insulating material, which is obtained by extrusion coating a core yoke 2.
  • This core yoke 2 has a central section 2a running inside the coil winding 3 and two yoke legs 2b and 2c running outside the coil winding transversely to the coil axis.
  • the yoke leg 2b is kept approximately shorter in order to leave space for coil connecting pins 4 anchored in the base body.
  • the core yoke is designed as a flat cut part and is therefore easy and inexpensive to manufacture.
  • Base body can be made very stable and true to size due to the injected metal core yoke despite the small wall thicknesses. With these small wall thicknesses of the base body, a large winding space can be created for a given volume, with which the temperature-increasing power consumption can be kept low with a given excitation.
  • a U-shaped armature 5 is arranged on the core yoke, which has a central part 5a and side legs 5b and 5c of different lengths designed in accordance with the two yoke legs.
  • the anchor is also cut from a flat sheet.
  • the armature 5 is mounted with its first side leg 5b on the first yoke leg 2b in such a way that it can perform a pivoting movement about a pivot axis perpendicular to the coil axis and forms a working air gap with its second side leg 5c relative to the second yoke leg 2c.
  • the yoke leg 2c and the armature leg 5c extend over the entire relay width, which results in a large pole area. As a result, a relatively high response sensitivity can be achieved even with a large anchor stroke.
  • a contact spring 6 is fastened with a wart rivet 7, which at the same time serves as a bearing spring for the armature.
  • the contact and bearing spring 6 encloses with its partially cut-out and arcuate spring section 6a in a clamp shape the first armature leg 5b and the first yoke leg 2b and is fastened to the yoke leg 2b by welding.
  • the restoring force of the armature is set by the prestressing of this spring section 6a.
  • the spring force tolerances can be switched off by aligning the parts before welding onto the yoke leg 2b.
  • On the spring section 6a is also a connecting pin 8 through Welding attached, which is bent within the housing and guided outwards in the desired grid.
  • the contact spring 6 surrounds with its U-shaped contact section 6b laterally the armature and the core yoke in such a way that it can be switched between two mating contact plates 9 and 10 on the side of the core yoke opposite the armature as a central contact spring. To achieve a double contact, the contact spring 6 is split into two contact-making ends 6c and 6d, each of which carries a contact piece 6e.
  • the counter-contact plates 9 and 10 are in turn designed as flat cut parts, provided with molded or welded connecting lugs 11 and 12 and inserted into corresponding grooves 13 and 14 of the base body 1 and held there by an interference fit. Due to the relatively large area of the contact plates 9 and 10, they are able to drain and radiate the heat generated in the contact circuit.
  • the counter contact plates 9 and 10 are easy to manufacture as flat cut parts; they are only plated with precious metal in the contact area.
  • the relay is inserted into a housing which is formed by a protective cap 15 and a base 16.
  • the housing is sealed by an additionally attached fleece 17 in the base area, which is impregnated with hardenable synthetic resin.
  • a getter chamber 18 is also formed, in which a getter pill 19 can be clamped.
  • Fig. 7 shows a slightly modified embodiment form in a Fig. 5 corresponding representation.
  • the core yoke 2 is in this case provided with an integrally formed and embossed extension 2d, which serves as a connecting pin for the contact spring 6.
  • the contact spring forms an additionally molded-on impact tooth 20 (see also FIG. 1), which dampens the rebound of the armature when the excitation is switched off and thus reduces contact bruises of the break contact.
  • the relay is constructed similarly to that already described with reference to FIGS. 1 to 6.
  • the relay shown in FIGS. 8 to 12 has essentially the same basic construction as the previously described, but it is designed in particular by modification of the connecting pins so that it is suitable for horizontal installation with a low overall height.
  • This relay has a base body 21 with an embedded core yoke 22, which carries a winding 23.
  • the core yoke has two yoke legs 22b and 22c, a U-shaped armature 25 with a first side leg 25b being mounted on the yoke leg 22b and with its second side leg 25c forming a working air gap with respect to the yoke leg 22c.
  • a contact and bearing spring 26 is fastened by a rivet 27 on the middle section 25a of the armature 25, it engages around the armature leg 25b and the yoke leg 22b with its arcuate spring section 26a and is fastened to the yoke leg 22b with welding points 28.
  • An additional molded-on spring tab 26f which engages on the underside of the yoke leg 2b, serves for pre-fixing.
  • a connecting pin 26g is also formed on the 'contact spring 26.
  • the contact spring surrounds the armature and the core yoke with a U-shaped section 26b and is in two at its free end contacting end portions 26c and 26d split, each carrying a contact piece 26e. With these, it can be switched between the two mating contact plates 29 and 30. These are provided with connecting lugs 31 and 32 bent at right angles and inserted for fastening in grooves 33 and 34 of the base body 21.
  • a protective cap 35 with a base 36 serves as the housing, the edge groove or the openings for the connecting pins being sealed with casting compound 37.
  • a chamber 38 for receiving a getter pill 39 is also provided in the base body.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
EP84109509A 1983-08-12 1984-08-09 Relais électromagnétique Expired EP0133582B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109509T ATE26362T1 (de) 1983-08-12 1984-08-09 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3329239 1983-08-12
DE19833329239 DE3329239A1 (de) 1983-08-12 1983-08-12 Elektromagnetisches relais

Publications (3)

Publication Number Publication Date
EP0133582A2 true EP0133582A2 (fr) 1985-02-27
EP0133582A3 EP0133582A3 (en) 1985-04-03
EP0133582B1 EP0133582B1 (fr) 1987-04-01

Family

ID=6206455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109509A Expired EP0133582B1 (fr) 1983-08-12 1984-08-09 Relais électromagnétique

Country Status (5)

Country Link
US (1) US4567457A (fr)
EP (1) EP0133582B1 (fr)
JP (1) JPS6062032A (fr)
AT (1) ATE26362T1 (fr)
DE (2) DE3329239A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640996A1 (de) * 1986-12-01 1988-06-09 Bosch Gmbh Robert Elektromagnetisches relais
DE19544625A1 (de) * 1995-11-30 1997-06-05 Hella Kg Hueck & Co Ankerlagerung für ein Klappankerrelais

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337268Y2 (fr) * 1984-09-13 1991-08-07
AT389958B (de) * 1986-03-24 1990-02-26 Uninorm Anstalt Relais
EP3570302B8 (fr) * 2018-05-18 2021-08-04 Tyco Electronics Austria GmbH Ensemble étrier pour un dispositif de commutation magnétique, tel qu'un relais, ensemble magnétique et dispositif de commutation magnétique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE457294A (fr) * 1943-08-19
US2107848A (en) * 1936-11-14 1938-02-08 Utah Radio Products Company Circuit controlling device
DE2254000A1 (de) * 1972-11-04 1974-05-16 Rau Swf Autozubehoer Kleinrelais, insbesondere fuer leiterplatten mit gedruckter schaltung
GB1361938A (en) * 1971-08-13 1974-07-30 Int Standard Electric Corp Electromagnetic relay
DE2537462A1 (de) * 1974-08-22 1976-03-11 Matsushita Electric Works Ltd Elektromagnetisches schuetz
GB2024519A (en) * 1978-06-30 1980-01-09 Omron Tateisi Electronics Co Electromagnetic relay
DE8302962U1 (de) * 1983-02-03 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107848A (en) * 1936-11-14 1938-02-08 Utah Radio Products Company Circuit controlling device
BE457294A (fr) * 1943-08-19
GB1361938A (en) * 1971-08-13 1974-07-30 Int Standard Electric Corp Electromagnetic relay
DE2254000A1 (de) * 1972-11-04 1974-05-16 Rau Swf Autozubehoer Kleinrelais, insbesondere fuer leiterplatten mit gedruckter schaltung
DE2537462A1 (de) * 1974-08-22 1976-03-11 Matsushita Electric Works Ltd Elektromagnetisches schuetz
GB2024519A (en) * 1978-06-30 1980-01-09 Omron Tateisi Electronics Co Electromagnetic relay
DE8302962U1 (de) * 1983-02-03 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640996A1 (de) * 1986-12-01 1988-06-09 Bosch Gmbh Robert Elektromagnetisches relais
DE19544625A1 (de) * 1995-11-30 1997-06-05 Hella Kg Hueck & Co Ankerlagerung für ein Klappankerrelais
US5900791A (en) * 1995-11-30 1999-05-04 Hella Kg Hueck & Co. Armature-mounting arrangement for a hinged-armature relay
DE19544625C2 (de) * 1995-11-30 2001-05-31 Hella Kg Hueck & Co Ankerlagerung für ein Klappankerrelais

Also Published As

Publication number Publication date
EP0133582B1 (fr) 1987-04-01
DE3462966D1 (en) 1987-05-07
DE3329239A1 (de) 1985-02-21
JPS6062032A (ja) 1985-04-10
ATE26362T1 (de) 1987-04-15
US4567457A (en) 1986-01-28
EP0133582A3 (en) 1985-04-03

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