EP0133582B1 - Relais électromagnétique - Google Patents
Relais électromagnétique Download PDFInfo
- Publication number
- EP0133582B1 EP0133582B1 EP84109509A EP84109509A EP0133582B1 EP 0133582 B1 EP0133582 B1 EP 0133582B1 EP 84109509 A EP84109509 A EP 84109509A EP 84109509 A EP84109509 A EP 84109509A EP 0133582 B1 EP0133582 B1 EP 0133582B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- contact
- yoke
- relay
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 10
- 230000013011 mating Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000006187 pill Substances 0.000 description 2
- IUSARDYWEPUTPN-OZBXUNDUSA-N (2r)-n-[(2s,3r)-4-[[(4s)-6-(2,2-dimethylpropyl)spiro[3,4-dihydropyrano[2,3-b]pyridine-2,1'-cyclobutane]-4-yl]amino]-3-hydroxy-1-[3-(1,3-thiazol-2-yl)phenyl]butan-2-yl]-2-methoxypropanamide Chemical compound C([C@H](NC(=O)[C@@H](C)OC)[C@H](O)CN[C@@H]1C2=CC(CC(C)(C)C)=CN=C2OC2(CCC2)C1)C(C=1)=CC=CC=1C1=NC=CS1 IUSARDYWEPUTPN-OZBXUNDUSA-N 0.000 description 1
- 208000034656 Contusions Diseases 0.000 description 1
- 208000000260 Warts Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229940125807 compound 37 Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 201000010153 skin papilloma Diseases 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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 flat core yoke with its central portion embedded in the base body, which has a yoke leg running transversely to the coil axis at both ends outside the coil winding, with one on the core yoke mounted U-shaped flat armature, which is encompassing the coil winding with its central part parallel to the coil axis and with its two side legs essentially perpendicular to the coil axis.
- Such a relay is known for example from DE-A-2 926 142.
- 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 armature in the fallen state 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 contains a relatively large number of individual parts in order to transmit the armature movement to the contact spring via an actuating element. 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 in such a way that a compact structure and thus a small volume is achieved with a few simple parts, with both having the same basic structure due to slight modification of individual parts an upright installation as well as a flat installation of the rectangular relay is possible.
- this object is achieved in a relay of the type mentioned at the outset in that the armature with its first side leg is pivotally mounted on the first yoke leg 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
- 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 on the side of the core yoke opposite the armature with at least one mating contact plate anchored in the coil former and provided with a connecting lug.
- the inventive design of the core yoke and the armature and their arrangement relative to one another results in a very large coupling surface 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 achieved with this 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 may be provided which is integrally formed on the core yoke and possibly reduced in cross section by embossing.
- it advantageously has molded-on and cut-free spring legs, by means of which it clasps the first yoke leg and the first side leg of the armature.
- 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 encircles 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 contact-bound 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 mating contact plates with their connecting lugs either run in a straight line or a right angle is formed between the mating contact plate and the connecting lug.
- 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, i.e. the connection pins are led out of the housing in such a way that the rectangular 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. It is encapsulated with plastic to form the base body, which base body can be made very stable and true to size despite the small wall thicknesses due to the injected core yoke made of metal. 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 with respect 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 also serves as a bearing spring for the armature.
- the contact and bearing spring 6 encloses the first armature leg 5b and the first yoke leg 2b with its partially cut-out and arcuate spring section 6a 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.
- a connecting pin 8 is also attached by welding, which is bent within the housing and guided outwards in the desired grid.
- the contact spring 6 is split into two contact-making ends 6c and 6d, each of which carries a contact piece 6e.
- the contact spring forms an additionally formed impact tooth 20 which dampens the rebound of the armature when the excitation is switched off and thus reduces contact bruises of the break contact.
- the counter-contact plates 9 and 10 are in turn designed as flat cut parts, provided with molded or welded-on connection 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 let the heat generated in the contact circuit flow away and radiate.
- 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 1 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 in a representation corresponding to FIG. 5.
- 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 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 one described above, but it is designed, in particular, by modifying the connecting pins in such a way 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 and connecting pins 24.
- 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 with welding points 28 to the yoke leg 22b.
- 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 engages with a U-shaped section 26b the armature and the core yoke and is split at its free end into two contacting end sections 26c and 26d, each of which carries a contact piece 26e. With these, it can be switched between the two mating contact plates 29 and 30. These are provided with connection 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)
- Valve Device For Special Equipments (AREA)
- Cookers (AREA)
- Surgical Instruments (AREA)
Claims (10)
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 EP0133582A2 (fr) | 1985-02-27 |
EP0133582A3 EP0133582A3 (en) | 1985-04-03 |
EP0133582B1 true 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) |
Families Citing this family (4)
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 |
DE3640996A1 (de) * | 1986-12-01 | 1988-06-09 | Bosch Gmbh Robert | Elektromagnetisches relais |
DE19544625C2 (de) * | 1995-11-30 | 2001-05-31 | Hella Kg Hueck & Co | Ankerlagerung für ein Klappankerrelais |
Family Cites Families (7)
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 | |||
BE771263A (nl) * | 1971-08-13 | 1972-02-14 | Bell Telephone Mfg | Elektromagnetisch relais, (uitv. : o. wuyts, m. van der auwera), |
DE2254000C3 (de) * | 1972-11-04 | 1975-06-19 | Swf-Spezialfabrik Fuer Autozubehoer Gustav Rau Gmbh, 7120 Bietigheim | Kleinrelais, insbesondere für Leiterplatten in gedruckter Schaltung |
JPS5124753A (en) * | 1974-08-22 | 1976-02-28 | Matsushita Electric Works Ltd | Denjikeidenki |
US4272745A (en) * | 1978-06-30 | 1981-06-09 | Omron Tateisi Electronics Co. | Electromagnetic relay |
DE8302962U1 (de) * | 1983-02-03 | 1983-06-09 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches Relais |
-
1983
- 1983-08-12 DE DE19833329239 patent/DE3329239A1/de not_active Withdrawn
-
1984
- 1984-08-07 US US06/638,497 patent/US4567457A/en not_active Expired - Fee Related
- 1984-08-09 AT AT84109509T patent/ATE26362T1/de not_active IP Right Cessation
- 1984-08-09 EP EP84109509A patent/EP0133582B1/fr not_active Expired
- 1984-08-09 DE DE8484109509T patent/DE3462966D1/de not_active Expired
- 1984-08-10 JP JP59166660A patent/JPS6062032A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0133582A3 (en) | 1985-04-03 |
US4567457A (en) | 1986-01-28 |
ATE26362T1 (de) | 1987-04-15 |
DE3329239A1 (de) | 1985-02-21 |
DE3462966D1 (en) | 1987-05-07 |
JPS6062032A (ja) | 1985-04-10 |
EP0133582A2 (fr) | 1985-02-27 |
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