EP1121700A1 - Sicherheitsrelais - Google Patents
SicherheitsrelaisInfo
- Publication number
- EP1121700A1 EP1121700A1 EP99947445A EP99947445A EP1121700A1 EP 1121700 A1 EP1121700 A1 EP 1121700A1 EP 99947445 A EP99947445 A EP 99947445A EP 99947445 A EP99947445 A EP 99947445A EP 1121700 A1 EP1121700 A1 EP 1121700A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- active
- contact springs
- contact
- slide
- spring
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
- H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
Definitions
- the invention relates to a relay with a base body that defines a base plane, a magnet system arranged on the base body with a coil, core and armature, with at least one make contact spring pair and at least one break contact spring pair, each contact spring pair comprising an active and a passive contact spring and wherein each contact spring is mounted perpendicular to the base plane in the base body and carries a contact piece at its end remote from the base body, and with an actuating slide that is movable parallel to the base plane and on each movable contact spring in the vicinity of the Contact piece attacks.
- Such a relay with positively driven contacts is known from DE 195 40 739 AI.
- the individual contact springs are arranged insulated from one another, special design measures being taken to prevent short circuits in the event that contact pieces detach from the contact springs.
- the active contact springs below the contact pieces are guided and actuated in laterally open slots in a slide.
- laterally open actuating sections change the stability of the slide, so that such slides tend to warp during manufacture and do not retain the optimum shape accuracy even during operation.
- Another problem with such relay designs is that the force to open the opening springs must be overcome at the start of the armature pull-up movement, while the force to close the normally-open contacts occurs towards the end of the armature pull-up movement.
- the aim of the present invention is to construct a relay of the type mentioned in the introduction in such a way that the spring characteristic can be better adapted to the characteristic of the magnet system.
- this aim is achieved in that the slide acts on the active normally closed contact springs with a different spacing with respect to the fastening in the base body than on the active normally open contact springs.
- the inventive design of a slide with different points of attack on the normally closed contact springs or the normally open contact springs with regard to their clamping in the base body means that the normally closed contacts are opened with as little force and long travel as possible, while the normally open contacts are closed with a short lever arm in a short way .
- the force to be applied to open the normally closed contacts is adapted to the lower force of the magnet system at the beginning of the tightening movement, while the high magnetic force at the end of the tightening movement of the armature is sufficient, the normally open contacts are short, ie with a small lever arm. to operate.
- the result is an overall more precise adaptation of the spring characteristic to the magnet system characteristic, so that the magnet system itself is dimensioned relatively small.
- all active contact springs are identical, so that neither the active break contact springs nor the active make contact springs are biased in the direction of the associated passive contact springs.
- the normally closed contact springs are then loaded by an armature spring actuated, are operated while the normally open contact spring by the Magnetsy ⁇ stem.
- FIG. 1 shows a relay designed according to the invention in an exploded view
- FIG. 2 shows the relay from FIG. 1 in the assembled state, with a partially cut-out slide and without a cap, in a perspective view
- FIG. 3 shows the relay from FIG. 2 in a rotated perspective view
- Figure 4 shows the relay of Figure 1 to 3 in side view, partially in longitudinal section, Figure 5 and 6, the slide of the relay of Figure 1 to 4 in two perspective views
- Figure 7 is a diagram showing the basic course of the force-displacement characteristics of the magnet system and the springs of the relay.
- the relay shown in Figures 1 to 6 has a base body 1 made of insulating material, which is designed essentially flat and defines a bottom side 10 and forms a closed housing with a cap 2.
- the base body 1 has a flat, trough-shaped recess 11 for receiving a magnet system, while the remaining part with raised side walls 12, a longitudinal intermediate wall 13 and transverse walls 14 forms two rows of contact carrier chambers 15.
- These contact carrier chambers 15 are narrowed downward in a slot-like manner into plug-in channels 16 (see FIG. 4), in order to accommodate insertable fixed contact carriers 21 or contact spring carriers 22 from above, perpendicular to the base plane 10.
- the fixed contact carriers 21 each form passive (or fixed) contact springs 23 with attached Festkon ⁇ contact pieces 24, while on the contact spring supports 22 each active (or movable) contact springs 25 are attached to the free ends of movable contact pieces 26.
- the magnet system used to actuate the relay has a U-shaped core yoke 31 with a core leg 32 and a yoke leg 33.
- a coil body 34 carries an excitation coil 35 and receives the core leg 32 in an axial through opening. Since this has a smaller width than the yoke leg 33 because of the limited coil width, an additional flux guide part 36 is inserted into the coil interior together with the core leg 32. In this way, the iron cross section within the coil is increased, as is the pole area 32a or 36a with which an armature
- the movement of the armature 37 is transmitted via an armature extension 37a to a slide 40 and via this to the active contact springs 25. Since the contact springs are arranged on the side of the magnet system opposite the armature, the slide has a connecting section 41 which extends above the coil and which is adjoined by an actuating section 42 which is stepped downward in the direction of the floor level.
- This actuating section forms, with a central longitudinal wall 43 and side walls 44 and transverse walls 45 and 46, frames for each individual contact spring, which these contact springs, with the exception of the first passive contact springs 24R and the respective last passive contact springs 23R and 23A2, which in the end regions of the Actuating section 42 of the slide 40 gene and therefore do not need shielding to an adjacent contact spring on either side.
- the active and passive contact springs are provided 25 and 23 designations in Figure 4, to designate the type of contact with accessories, so 23A1, 23A2 for passive Ar ⁇ beitsKeyfedern (NO contact springs), 23R for passive rest contact springs ( ⁇ ffnertitlefedern) 25A1 and 25A2 for active normally open contact springs (normally open contact springs) and 25R for active normally closed contact springs (normally closed contact springs).
- Slider 40 are recessed windows 47 for the active contact springs and windows 48 for the passive contact springs.
- the respective passive contact springs 23 and active contact springs 25 protrude through these windows 46 and 47, so that the contact pieces 24 and 26 carrying ends are each above the actuating section 42 of the slide and essentially within the partition walls 43, 44, 45 and 46 are formed frames.
- transverse walls or blocking walls 46 which each separate interacting active and passive contact springs, each have an approximately semicircular cutout 49 in adaptation to the round contour of the contact pieces.
- a movable contact piece 26 of the active contact springs 25 is guided in this cutout 49.
- the active contact spring itself can bear close to the locking wall 46 or a locking rib 50 protruding from the locking wall.
- the slide forms actuating lugs 52 projecting inward from the side walls 44, which actuate the active work contact springs or the active normally closed contact springs at different heights.
- the active contact springs are each arranged within the window 47 and guided between the respective locking rib 50 and the associated actuating nose 51 or 52 with a tight play.
- the assembled magnetic system initially sets 1 into ⁇ into the recess 11 of the base body, wherein the armature spring 38 and 33 the basic body is attached between the yoke legs.
- the slide 40 with its connecting section 41 is placed on the magnet system, the return legs 39 of the armature spring 38 being hooked into the openings 41a of the slide.
- the ⁇ ker itself is mounted on the yoke leg 33 and hooked with its extension 37a into the opening 41b of the slider 40th
- the contact springs are mounted. All contact springs are inserted through the corresponding windows 47 and 48 of the slide into the chambers 15 of the base body and fastened in the plug-in slots 16. All fixed contact carrier 21 with the passive contact springs 23 are constructed identically and straight, so that they can be inserted into the base body perpendicular to the base plane. Also all active contact springs 25 with their contact spring supports 22 are constructed identically and straight, so that they can be used independently of their function as working contact springs 25A1, 25A2 or normally closed contact springs 25R perpendicular to the base plane through the associated window 47 of the slide. For this purpose, the slide 40 is held in a central position against the bias of the armature spring 38.
- Locking rib 50R is moved into its open working position.
- the slide with the actuating lugs 51 laterally engages the active work contact springs 25A1 and 25A2 and moves them in the direction of the passive work contact springs 23A1 and 23A2 until the corresponding work contacts are closed.
- the armature spring 38 restores the idle state, the slide 40 engaging laterally via the actuating lugs 52 on the contact pieces 26R and closing the normally closed contacts. If one of the contacts is welded, the tight guidance of the active contact springs 25 ensures that further movement of the slide 40 and thus further actuation of the other contacts is blocked.
- the slide is blocked against further movement via the locking rib 50R, which acts directly next to the contact piece.
- the work contacts cannot close.
- the locking rib 50A which acts on the associated contact spring in addition to the welded contact, also prevents the slide from being reset and actuation of the normally closed contacts.
- all active contact springs are straight, they are self-opening. For example, interrupts an operation lug 51 or 52 on the slide, thus opening the Subject Author ⁇ Fende active spring contact (NC) or it will not be concluded overall (the contact).
- the armature spring 38 breaks, all normally closed contacts (break contacts) open and all make contacts are no longer closed.
- the actuating lugs 52 for the active normally closed contact springs 25R lie substantially higher with respect to the base plane than the actuating lugs 51 for the active normally open contact springs 25A1 and 25A2. As a result, the force-displacement translation is different for the work contacts and the rest contacts.
- the dimensioning of the magnet system normally has to ensure that the magnet system Even at the beginning of the armature tightening movement, enough force is applied to actuate the normally closed contacts in the direction of the opening and to overcome the restoring force of the armature spring.
- the staggered arrangement of the actuation points or the actuating lugs 51 and 52 with respect to the base plane means that the active normally closed contact springs are actuated with less force and over a longer distance, while the active normally open contact springs are brought to close in a short way by the shorter lever ratio .
- FIG. 7 shows the adaptation of the force-displacement characteristics.
- f denotes the characteristic of the total spring forces
- m the characteristic of the magnet system.
- the forces F acting against each other are plotted over the path s, which represents the armature movement or the movement of the slide 40 between the rest position (on the right in FIG. 4 when the armature is open) and the working position (on the left in FIG. 4 when the armature is closed).
- the slide In the idle state, the slide is located, for example, at the point sl or to the right of it, depending on the contact wear.
- the armature When the armature is tightened, the slide moves to the left, the force m of the magnet system initially increasing only slowly. In this range up to s2 the opening force to be overcome (on the active normally closed contact spring or the armature spring adapted to it) is still relatively low due to the large lever ratio. From s2 to s3, the active work contact springs result in a stronger increase in spring force, which is overcome by a magnetic force m, which also increases in this area. From s3 to the stop, both the spring force f and the magnetic force increase sharply. This is the area of overlap up to point s4.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Control Of Combustion (AREA)
- Air Bags (AREA)
- Switch Cases, Indication, And Locking (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19847831A DE19847831C2 (de) | 1998-10-16 | 1998-10-16 | Sicherheitsrelais |
DE19847831 | 1998-10-16 | ||
PCT/EP1999/007278 WO2000024019A1 (de) | 1998-10-16 | 1999-10-01 | Sicherheitsrelais |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1121700A1 true EP1121700A1 (de) | 2001-08-08 |
EP1121700B1 EP1121700B1 (de) | 2002-06-12 |
EP1121700B2 EP1121700B2 (de) | 2007-06-06 |
Family
ID=7884743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99947445A Expired - Lifetime EP1121700B2 (de) | 1998-10-16 | 1999-10-01 | Sicherheitsrelais |
Country Status (5)
Country | Link |
---|---|
US (1) | US6906604B1 (de) |
EP (1) | EP1121700B2 (de) |
AT (1) | ATE219285T1 (de) |
DE (2) | DE19847831C2 (de) |
WO (1) | WO2000024019A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10244147B4 (de) * | 2002-09-23 | 2008-01-10 | E. Dold & Söhne KG | Elektromagnetisches Relais mit zwangsgeführten Kontakten |
DE10244146B4 (de) * | 2002-09-23 | 2011-04-21 | E. Dold & Söhne KG | Elektromagnetisches Relais mit zwangsgeführten Kontakten |
EP1455372B1 (de) * | 2003-03-06 | 2006-05-31 | TYCO Electronics Austria GmbH | Relais mit querschnittserweitertem Kern |
DE102004060370A1 (de) * | 2004-12-15 | 2006-07-06 | Tyco Electronics Austria Gmbh | Elektromagnetisches Relais |
JP4424260B2 (ja) * | 2005-06-07 | 2010-03-03 | オムロン株式会社 | 電磁リレー |
CH698492B1 (de) * | 2006-03-20 | 2009-08-31 | Elesta Relays Gmbh | Relais. |
DE102006015251B3 (de) * | 2006-03-30 | 2007-04-19 | Tyco Electronics Austria Gmbh | Magnetsystem mit H-Anker für ein Relais |
DE102006021203B3 (de) | 2006-05-06 | 2008-01-17 | Tyco Electronics Austria Gmbh | Elektrisches Relais |
US7852179B2 (en) * | 2008-05-06 | 2010-12-14 | Tyco Electronics Corporation | Relay with automated overtravel adjustment |
JP2011228066A (ja) * | 2010-04-16 | 2011-11-10 | Nagaoka Univ Of Technology | 継電器、制御回路及び制御回路の制御方法 |
JP5623873B2 (ja) * | 2010-11-08 | 2014-11-12 | パナソニック株式会社 | 電磁リレー |
DE102012006450A1 (de) | 2012-03-30 | 2013-10-02 | Phoenix Contact Gmbh & Co. Kg | Relais mit zwangsgeführten Kontakten |
JP6168785B2 (ja) * | 2012-03-30 | 2017-07-26 | 富士通コンポーネント株式会社 | 有極電磁継電器 |
DE102012017157A1 (de) | 2012-08-30 | 2014-03-06 | Hengstler Gmbh | Relais mit modifizierter Kraft-Weg-Kennlinie |
JP6325278B2 (ja) * | 2014-02-19 | 2018-05-16 | 富士通コンポーネント株式会社 | 電磁継電器 |
JP2017201593A (ja) * | 2016-05-02 | 2017-11-09 | 富士通コンポーネント株式会社 | 電磁継電器 |
DE102018117168B4 (de) | 2018-07-16 | 2023-07-06 | E. Dold & Söhne KG | Relais |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL63026C (de) * | 1943-01-23 | |||
DE969149C (de) * | 1953-06-28 | 1958-05-08 | Lorenz C Ag | Anordnung zur Betaetigung von Kontaktfedern an Relais |
DE7512499U (de) | 1975-04-18 | 1977-03-03 | E. Haller & Co Relaisfabrik, 7209 Wehingen | Relais |
IT1075619B (it) | 1977-02-02 | 1985-04-22 | Equipaggiamenti Meccanico Elet | Rele' elettromagnetico piatto |
JPS5732515Y2 (de) † | 1978-03-31 | 1982-07-16 | ||
SE448411B (sv) | 1978-04-19 | 1987-02-16 | Hengstler Gmbh Haller Relais | Kontaktfjederblock for rele |
DE2902885C2 (de) † | 1979-01-25 | 1983-03-24 | Sds-Elektro Gmbh, 8024 Deisenhofen | Kontaktfederanordnung für elektromagnetische Drehankerrelais |
DE3437544A1 (de) | 1984-10-12 | 1986-04-17 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches relais |
EP0372554A3 (de) * | 1988-12-09 | 1992-04-08 | OMRON Corporation | Elektromagnetisches Relais |
DE4300594A1 (de) | 1993-01-13 | 1994-07-14 | Hengstler Bauelemente | Sicherheitsrelais mit zwangsgeführtem Kontaktsatz und monostabilem Antrieb |
DE19540739C2 (de) * | 1995-07-11 | 1997-10-16 | Dold & Soehne Kg E | Relais mit zwangsgeführten Kontakten |
DE19600314C2 (de) | 1996-01-06 | 1999-02-04 | Hengstler Gmbh | Relais mit zwangsgeführten Kontaktsätzen |
JP3333898B2 (ja) * | 1996-07-03 | 2002-10-15 | 富士電機株式会社 | 電磁接触器 |
EP0938119A1 (de) * | 1998-02-18 | 1999-08-25 | ELESTA relays GmbH | Relais |
-
1998
- 1998-10-16 DE DE19847831A patent/DE19847831C2/de not_active Expired - Fee Related
-
1999
- 1999-10-01 DE DE59901764T patent/DE59901764D1/de not_active Expired - Lifetime
- 1999-10-01 WO PCT/EP1999/007278 patent/WO2000024019A1/de active Application Filing
- 1999-10-01 AT AT99947445T patent/ATE219285T1/de active
- 1999-10-01 EP EP99947445A patent/EP1121700B2/de not_active Expired - Lifetime
- 1999-10-01 US US09/807,689 patent/US6906604B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0024019A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1121700B2 (de) | 2007-06-06 |
US6906604B1 (en) | 2005-06-14 |
EP1121700B1 (de) | 2002-06-12 |
DE19847831C2 (de) | 2002-11-21 |
DE59901764D1 (de) | 2002-07-18 |
DE19847831A1 (de) | 2001-08-09 |
WO2000024019A1 (de) | 2000-04-27 |
ATE219285T1 (de) | 2002-06-15 |
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