EP0593526A1 - Elektromagnetisches relais. - Google Patents
Elektromagnetisches relais.Info
- Publication number
- EP0593526A1 EP0593526A1 EP92913074A EP92913074A EP0593526A1 EP 0593526 A1 EP0593526 A1 EP 0593526A1 EP 92913074 A EP92913074 A EP 92913074A EP 92913074 A EP92913074 A EP 92913074A EP 0593526 A1 EP0593526 A1 EP 0593526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- contact
- base body
- spring
- contact 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
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
Definitions
- the invention relates to an electromagnetic relay with ei ⁇ nem Grundk ⁇ rper, at least one ger pin in a wall of the basic body pers anchored perpendicularly exiting from the wall Trä ', at least one consisting of strip material contact spring which with a fixing part to support pin partially is looped around and fastened to it and which has a contact-giving spring leg which can be switched between a rest position and a working position by an anchor about the axis of the connecting pin.
- the connecting pin generally being anchored in a base section or in another base part.
- the contact spring In the case of relays of conventional type, in which the contact springs are each partially wound around the connecting pin with one fastening end, as is known, for example, from DE-OS 25 12 574, the contact spring must in each case additionally be connected to the connecting pin by welding or attached in any other way to avoid twisting the contact spring when switching. This means that the attachment end of the contact spring must be accessible for welding or for another type of attachment even after assembly; If, however, the contact spring in a relay is arranged in a narrow space, for example between the armature and the coil, the type of fastening mentioned at the outset is not possible.
- a band spring is welded to a pin, a certain pretension can only be achieved by special measures or by subsequent adjustment.
- the object of the invention is to provide the contact spring and its attachment in a relay of the type mentioned Design that the spring can be easily installed even in confined spaces and that the desired shape of the spring itself can be achieved by the shape of the spring itself, together with the overall construction, which makes adjustment after installation unnecessary.
- this object is achieved in that the contact spring with its fastening section forms a clamping sleeve which is non-positively plugged onto the carrier pin and, on the other side of the clamping sleeve, has a prestressing leg in the form of an extension, which is supported on a support element which is firmly connected to the base body and biases the spring leg into its rest position via the carrier pin as the lever axis.
- the desired preload for the contact leg can be set via the angle between the contact leg and the preload leg in cooperation with the position of the support elements with respect to the carrier pin; it results from the assembly of the preformed contact spring of its own accord.
- the clamping sleeve also does not need to be additionally welded or otherwise fastened to the carrier pin, since the supported prestressing leg prevents rotation on the carrier pin anyway.
- the contact spring for forming the two legs is bent almost like a hairpin, the clamping sleeve being formed in the region of curvature between the two legs.
- the invention can be used for any relay constructions, it gives particular advantages in a relay in which the base body is fixedly connected to a coil former, in front of which the flat armature is arranged in front of one end face, in which the Carrier pin with the contact spring is arranged in the area between the armature and the coil former and in which the pretensioning leg is supported on the coil former and pretensions the contact leg in the direction of the armature.
- the advantages of the invention come into their own particularly well, because there is generally little space in the area between the armature and the coil former in order to intervene with welding devices or adjusting instruments.
- the arrangement with a contact spring attached according to the invention can advantageously be used both for a single relay with a single magnetic system and for a double relay with a double magnet system, with the latter having two coils on a common base body with two coil cores arranged in alignment with one another are arranged.
- two changeover contacts for example, can be arranged in the area between the two coil bodies, which are actuated either by a common armature or by two armatures lying in parallel.
- FIG. 1 shows a relay designed according to the invention, a simple magnet system and a changeover contact in a perspective view
- FIG. 2 shows a polarity reversing relay constructed according to the invention in a top view, partially cut and with a partially perspective contour of the yoke
- Figure 3 is a detailed representation of Figure 2 with the armature and a contact spring in a perspective view.
- the relay according to FIG. 1 has a base body 100, which rather forms a coil body with two flanges 101 and 102, between which a winding 103 is applied. Winding connections 34 and 35 are embedded in the coil flange 101.
- a contact space 104 is formed on the coil flange 102, in which two fixed mating contact elements 105 and 106 are fastened by insertion. Corresponding pins 105a and 106a emerge from the connection side.
- a yoke 120 with a leg 121 perpendicular to the coil axis and a leg 122 parallel to the coil axis is furthermore arranged on the bobbin.
- the yoke leg 121 is coupled to an invisible core, while the yoke leg 122 carries an anchor 130 at its free end.
- the armature is supported by means of retaining tabs 131 and 132 in bearing notches 124 and 125 of the yoke, as is shown in more detail in FIG. 3. These mounting tabs 131 and 132 are bent into the corresponding bearing notches 124 and 125 during assembly.
- the armature 130 actuates a contact spring 8, which can be switched with its contact leg 82 between the two mating contact elements 105 and 106 and is fastened with a fastening section 181 in the form of an adapter sleeve on a carrier pin 110, which is also a connecting pin.
- the approximately hairpin-shaped curved contact spring 108 has, on the other side of the tensioning sleeve 181, a prestressing leg 183 which is supported on the coil flange 102 and thus prestresses the spring leg 182 toward the armature 130 or toward the mating contact element 105.
- FIG. 2 shows an embodiment of the relay according to the invention in the form of a pole reversing relay with two coils and a common armature 13.
- the relay has a base body 1, which forms two integrally connected coil bodies 2 and 3 and one formed between the two coil bodies Has contact space 4.
- On the bobbin 2 is between two flanges 21 and 22, a winding 23, on the bobbin 3 between flanges 31 and 32, a winding 33 is applied.
- Two connecting pins 24 and 25 for the winding 23 are embedded in the coil flange 21, and two connecting pins 34 and 35 for the winding 33 are embedded in the coil flange 31. In this way, both windings can be controlled and excited separately. Since the two bobbins are in one piece parts of the basic body 1, the two windings 23 and 33 can be produced in one operation on a winding machine.
- a U-shaped contact plate 5 is fastened in the contact chamber 4 by insertion, which in one piece forms two external contact elements 51 and 52 and is guided through the bottom of the base body with a connecting pin 53.
- a further contact plate 6 forms a center contact element 61 and a connecting pin 62 which is guided through the base of the base body.
- the external contact elements 51 and 52 are each provided with a contact piece, and the center contact element 61 is provided with two contact pieces.
- two contact springs 7 and 8, which are made of leaf spring material, are arranged in the contact chamber 4. Each contact spring is bent at a fastening section to form an adapter sleeve 71 or 81 and is fitted with this adapter sleeve onto a connecting pin 9 or 10.
- the contact springs each form contact legs 72 and 82, which are each provided with contact pieces on both sides and can be switched between the center contact element 61 and a respective counter contact element 51 or 52.
- each of these contact springs 7 and 8 are formed with preload legs 73 and 83, respectively, which are supported on the respective coil flange 22 and 32, respectively. Due to the conclusive attachment by means of the clamping sleeves 71 and 81 and the biasing legs 73 and 83, both contact springs 7 and 8 are biased towards the center contact element 61. Even with a switching movement of the contact springs there is no rotation on the connecting pins 9 or 10. Rather, the two legs of the approximately hairpin-shaped contact spring 7 or 8 are pressed together when switching, so that they sit even more firmly on the respective connecting pin 9 or 10. In some cases, however, it could be necessary to attach the contact springs to the connection pins by additional means, such as soldering or welding. However, this has no influence on the pretension, since this pretension is already fixed during assembly by inserting the respective contact spring between the center contact element 61 and the respective coil flange 22 or 32.
- the contact springs 7 and 8 (as well as the contact spring 108 in FIG. 1) each have a circular cutout in their central part, for example.
- B. 84 which is adapted to the rounding of the associated coil core and enables free movement of the contact spring above the coil core.
- a yoke-armature assembly is placed on the bobbin with windings and contact elements.
- a yoke 12 with two side sections 121 and 122 and an elongated central section 123 is pushed onto the two outer coil flanges 21 and 31.
- an armature 13 is mounted on the yoke 12, which has holding lugs 131 and 132 at its end of the bearing in an extension of its side edges. These retaining tabs are bent into bearing notches 124 and 125 when the armature is mounted on the yoke middle section 123 and thus prevent the armature from falling out (see FIG. 3).
- the mobility of the armature in its mounting is guaranteed.
- the yoke 12 is pushed onto the base body 1, so that the side legs 121 and 122 engage in corresponding cutouts in the flanges 21 and 31, respectively, and the armature projects into the contact space 4.
- centering pins 11 are additionally formed on the base body 1, which engage in openings 128 when the yoke is installed.
- two cores 14 and 15 are pressed into the axial recesses of the two bobbins from the outer sides and are pressed or otherwise, e.g. B. notching or welding, connected to the yoke.
- Switch cams 134 are also formed on both sides of the armature and are used to actuate the contact springs 7 and 8.
- the thickness of the armature between the two switching cams is selected to be so small that the armature is decoupled with play between the two contact springs 7 and 8 when the latter are both with their contact legs 72 and 82 on the central contact element 61 issue.
- a thicker armature and a corresponding spring preload it would also be possible to leave only one contact spring in contact with the central contact element in the idle state and thus to create a follow-up contact, for example.
- both contact springs 7 and 8 rest with their contact legs 72 and 82 on the central contact element 61.
- the armature is attracted to the associated core 14 or 15, whereby it brings the associated contact spring 7 or 8 into contact with the corresponding external contact element 51 or 52.
- the respective other contact spring remains on the center contact element 61.
- the armature passes through a central position in which both contact springs 7 and 8 simultaneously make contact with the central contact element 61, before the respective other contact spring then contacts the associated external contact element 52 or 51 is turned on. If none of the windings is energized, the armature remains in the middle position, and the contact springs 7 and 8 lie on the center contact element 61 with their pretension.
- each of the contact springs 7 and 8 cooperates with its own pair of counter-contact elements, for example similar to the counter-contact elements 105 and 106 of FIG. 1. It would also be possible to use two parallel anchors instead of the armature 13 in the central yoke part between the two contact springs 7 and 8. In this case, one armature would switch an associated contact spring 7 or 8 independently of the other. In this case, it would then be necessary to provide an insulating actuating member, for example an isolating switching cam 134, at least between one of the armatures and the associated contact spring in order to electrically separate the two systems.
- an insulating actuating member for example an isolating switching cam 134
- FIGS. 1 and 2 The construction according to FIGS. 1 and 2 is chosen such that the main planes of the yoke are perpendicular to the connection plane and the relay is laterally enclosed on three sides. It would also be conceivable to rotate the relay with its mounting plane by 90 ⁇ about the coil axis, so that the central portion of the yoke would lie above the coils and the contact space with respect to the mounting plane.
- the connecting pins 24, 25 or 34, 35 and 9, 10, 53, 62 or 105a, 106a are then not brought out to the rear in the illustration of FIG. 1 or FIG. 2, but downward. Modifications with more than one contact spring on each connecting pin are also conceivable.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4122704 | 1991-07-09 | ||
DE4122704A DE4122704C2 (de) | 1991-07-09 | 1991-07-09 | Elektromagnetisches Relais |
PCT/DE1992/000519 WO1993001608A1 (de) | 1991-07-09 | 1992-06-23 | Elektromagnetisches relais |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0593526A1 true EP0593526A1 (de) | 1994-04-27 |
EP0593526B1 EP0593526B1 (de) | 1995-04-26 |
Family
ID=6435761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92913074A Expired - Lifetime EP0593526B1 (de) | 1991-07-09 | 1992-06-23 | Elektromagnetisches relais |
Country Status (7)
Country | Link |
---|---|
US (1) | US5394127A (de) |
EP (1) | EP0593526B1 (de) |
JP (1) | JP3378002B2 (de) |
AT (1) | ATE121864T1 (de) |
CA (1) | CA2113094A1 (de) |
DE (2) | DE4122704C2 (de) |
WO (1) | WO1993001608A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4219933A1 (de) * | 1992-06-17 | 1993-12-23 | Siemens Ag | Elektromagnetisches Relais |
IT1268008B1 (it) * | 1994-02-04 | 1997-02-20 | Bitron A Spa | Relais perfezionato con ancora mobile ad effetto smorzante. |
AT410724B (de) * | 1994-10-10 | 2003-07-25 | Tyco Electronics Austria Gmbh | Relais |
DE19712721A1 (de) * | 1997-03-26 | 1998-10-01 | Telefunken Microelectron | Verfahren zum Betrieb einer Relaisanordnung |
US6025766A (en) * | 1997-04-11 | 2000-02-15 | Siemens Energy & Automation, Inc. | Trip mechanism for an overload relay |
US5910759A (en) * | 1998-05-15 | 1999-06-08 | Siemens Energy & Automation, Inc. | Contact mechanism for electronic overload relays |
DE29917174U1 (de) * | 1999-09-30 | 2000-01-13 | Abb Patent Gmbh | Elektronisches Überlastrelais |
DE10304638B4 (de) * | 2002-02-07 | 2004-07-01 | Tyco Electronics Amp Gmbh | Schaltrelais mit zwei Magnetspulen und Verfahren zum Herstellen eines Schaltrelais mit zwei Magnetspulen |
DE10304675B4 (de) * | 2002-02-07 | 2009-08-20 | Tyco Electronics Amp Gmbh | Schaltrelais mit einer Magnetspule und Verfahren zum Herstellen eines Schaltrelais |
US7161104B2 (en) * | 2003-09-26 | 2007-01-09 | Rockwell Automation Technologies, Inc. | Trip-free PCB mountable relay configuration and method |
US6949997B2 (en) * | 2003-09-26 | 2005-09-27 | Rockwell Automation Technologies, Inc. | Bi-stable trip-free relay configuration |
US7889032B2 (en) | 2008-07-16 | 2011-02-15 | Tyco Electronics Corporation | Electromagnetic relay |
CN103578869A (zh) * | 2013-11-08 | 2014-02-12 | 柳州美源科技有限公司 | 一种带线圈保护片的双线包继电器 |
KR101626365B1 (ko) * | 2014-09-30 | 2016-06-01 | 엘에스산전 주식회사 | 회로 차단기용 액츄에이터 및 그 제조방법 |
JP6631068B2 (ja) * | 2015-07-27 | 2020-01-15 | オムロン株式会社 | 接点機構およびこれを用いた電磁継電器 |
US9754747B1 (en) * | 2016-04-25 | 2017-09-05 | Song Chuan Precision Co., Ltd. | Relay device |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1018959B (de) * | 1951-09-28 | 1957-11-07 | Licentia Gmbh | Elektromagnetisches Schuetz mit Drehmomentausgleich |
GB758782A (en) * | 1953-07-24 | 1956-10-10 | Westinghouse Air Brake Co | Improvements in electromagnetic relays |
GB765569A (en) * | 1954-02-02 | 1957-01-09 | Ferguson Radio Corp | Improvements in electromagnetic relays |
CH363091A (de) * | 1957-03-06 | 1962-07-15 | Veltechna Narodni Podnik | Elektromagnetisches Kipprelais für Gleichstrom mit arretierten Kontaktstellungen |
DE1091193B (de) * | 1957-04-02 | 1960-10-20 | Baer Elektrowerke G M B H | Kontaktfederanordnung fuer elektrische Schalter |
US3152237A (en) * | 1960-12-28 | 1964-10-06 | American Mach & Foundry | Electrical switching devices with movable contact engageable with v-shaped contact |
NL281836A (de) * | 1961-08-11 | |||
US3519966A (en) * | 1967-01-23 | 1970-07-07 | Tektronix Inc | Electrical relay |
FR1532608A (fr) * | 1967-06-01 | 1968-07-12 | Wonder Piles | Interrupteur électrique et son application aux boîtiers de lampes portatives |
AT359153B (de) * | 1974-11-20 | 1980-10-27 | Siemens Ag | Magnetsystem fuer ein elektromagnetisches relais |
US3958200A (en) * | 1975-01-09 | 1976-05-18 | Guardian Electric Manufacturing Company | Blade construction for relay |
DE2512574A1 (de) * | 1975-03-21 | 1976-09-23 | Siemens Ag | Kontaktanordnung fuer relais |
US4554521A (en) * | 1984-07-03 | 1985-11-19 | Babcock Electro-Mechanical, Inc. | Armature/contact system |
DE3545356C2 (de) * | 1985-12-20 | 1997-04-10 | Siemens Ag | Sicherheits-Schaltrelais |
-
1991
- 1991-07-09 DE DE4122704A patent/DE4122704C2/de not_active Expired - Fee Related
-
1992
- 1992-06-23 CA CA002113094A patent/CA2113094A1/en not_active Abandoned
- 1992-06-23 AT AT92913074T patent/ATE121864T1/de not_active IP Right Cessation
- 1992-06-23 DE DE59202043T patent/DE59202043D1/de not_active Expired - Fee Related
- 1992-06-23 WO PCT/DE1992/000519 patent/WO1993001608A1/de active IP Right Grant
- 1992-06-23 EP EP92913074A patent/EP0593526B1/de not_active Expired - Lifetime
- 1992-06-23 US US08/182,205 patent/US5394127A/en not_active Expired - Lifetime
- 1992-06-23 JP JP50172393A patent/JP3378002B2/ja not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9301608A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE4122704A1 (de) | 1993-01-21 |
DE59202043D1 (de) | 1995-06-01 |
JP3378002B2 (ja) | 2003-02-17 |
WO1993001608A1 (de) | 1993-01-21 |
JPH06508956A (ja) | 1994-10-06 |
DE4122704C2 (de) | 1993-12-16 |
ATE121864T1 (de) | 1995-05-15 |
CA2113094A1 (en) | 1993-01-21 |
US5394127A (en) | 1995-02-28 |
EP0593526B1 (de) | 1995-04-26 |
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