EP1157400A1 - Magnetischer auslöser, insbesondere für einen leitungsschutzschalter, und leitungsschutzschalter mit einem solchen magnetauslöser - Google Patents
Magnetischer auslöser, insbesondere für einen leitungsschutzschalter, und leitungsschutzschalter mit einem solchen magnetauslöserInfo
- Publication number
- EP1157400A1 EP1157400A1 EP00915158A EP00915158A EP1157400A1 EP 1157400 A1 EP1157400 A1 EP 1157400A1 EP 00915158 A EP00915158 A EP 00915158A EP 00915158 A EP00915158 A EP 00915158A EP 1157400 A1 EP1157400 A1 EP 1157400A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- webs
- circuit breaker
- core
- web
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2481—Electromagnetic mechanisms characterised by the coil design
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
- H01H71/7436—Adjusting the position (or prestrain) of the bimetal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/003—Printed circuit coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
Definitions
- Magnetic release in particular for a circuit breaker, and circuit breaker with such a magnetic release
- the invention relates to a magnetic release for a switching device, in particular for a circuit breaker, according to the preamble of claim 1.
- the invention further relates to a circuit breaker with a magnetic release according to the preamble of claim 8.
- a magnetic release in particular for a circuit breaker, comprises a coil which is made of helically wound wire, a magnetic core which is fixedly connected to a yoke surrounding the coil and which engages into the inside of the coil, and a magnet armature which is designed either as a hinged armature or as a plunger armature is, the latter is also located within the coil.
- the core and the armature are located within a cylindrical tube, the armature being kept at a distance from the core by means of a compression spring, so that the armature is attracted against the force of the spring in relation to the core when an overcurrent or short-circuit current is present.
- the coil is connected at one end to the yoke, which has a holder for a thermal bimetal there and carries a fixed contact piece at the other end, which merges into an arc guide rail, which delimits an arc-quenching plate package on the trigger side and the arc which arises on the fixed contact piece -Foot point feeds the quenching plate package.
- an insulated wire made of copper must be stripped at the ends and wound helically to produce the coil, which means a high expenditure of time.
- the coil is also assigned a yoke, which carries the coil tube, around which the insulated wire is wound and in which the armature and core are guided.
- the object of the invention is to provide a magnetic release of the type mentioned, the manufacture of which is simplified.
- the coil of sheet metal is stamped and bent from electrically and magnetically highly conductive material; first webs are at a distance from one another and in a first plane; second webs lie at the same distance from one another in a second plane, the first and second webs running parallel to one another and being offset from one another. Between each end of the first and the adjacent end of the second and one end of the second and the adjacent ends of the first webs, connecting webs are provided such that the webs with their connecting webs are arranged helically around a central axis and within a through opening for receiving of core and anchor. A fixed contact piece of a contact point of the circuit breaker is additionally attached to this coil, and a holder for a thermal release is molded on.
- an arc guide rail for an arc quenching package is then molded onto the fixed contact piece.
- a core can also be molded onto the coil.
- This coil is mainly used as an excitation coil of synchronous machines or DC machines, to replace the flat, upright wound conductor.
- Such a design of the coil can be produced simply by punching out a sheet metal and by folding or bending, so that special winding devices with a winding mandrel and the like are no longer required.
- first and second webs are U-shaped, the U-shape of the first and second webs each being open to the opposite plane.
- the connecting webs can then advantageously connect alternately at one end of each web to one leg and at the other end to the other leg of the U-shape.
- FIG. 1 is an end view of a coil according to the invention, without a fixed contact piece, arc guide rail and holder for a thermobimetal,
- FIG. 2 is a plan view of the coil according to arrow direction II of FIG. 1,
- FIG. 3 is a view of the coil in the direction of arrow III of FIG. 2, 4 is a development of the coil according to FIGS. 1 to 3 as a stamped sheet metal part,
- FIG. 5 is a side view of the coil with a fixed contact piece, the arc guide rail and the holder for a thermobimetal,
- Fig. 6 is a plan view of a further embodiment of the coil.
- FIG. 7 is a sectional view according to section line VII-VII of FIG. 6th
- FIG. 5 shows a side view of a coil according to FIG. 3, which has been given the reference number 80 in FIG. 5.
- a U-shaped extension 82 is formed on the coil web 81 located at the upper end of the coil 80 in FIG. 5, the open side 83 of which is directed toward the coil 80.
- the leg 84 of the U-shaped extension 82 directly adjoining the coil web 81 carries a fixed contact piece (not shown in more detail) for a circuit breaker which interacts with a movable contact piece, as shown, for example, in the switching device S 2 from ABB Stotz-Kontakt GmbH, Heidelberg .
- the leg 84 runs parallel to the coil web 81 and at an acute angle to the leg 84 another leg 85 runs, to which an arc guide rail 86 connects, which runs parallel to the central axis M-M of the coil 80.
- This arc guide rail delimits an arc quenching plate packet on the side adjacent to the coil 80.
- the spool web 87 of the coil 80 which is located at the opposite end, in FIG. 5 at the lower end of the coil 80, has a bend 88 running perpendicular thereto, which runs parallel to the central axis MM, approximately in the plane E 1 t see also Fig. 3; a leg 89 of a holder 90 for a thermal bimetal 100 is formed thereon; the bimetallic metal 100 is fixed to the other, free leg 91 of the holder 90.
- a tab 93 is formed which runs parallel to the coil web 87 and which cooperates with the leg 91; a threaded screw 94 is screwed through the leg 91, the other end of which, as indicated by arrow P, rests against the leg 91 opposite surface of the tab 93 abuts so that the distance between the tab 93 and the free end of the leg 91 can be changed so that the bimetallic 100 can be adjusted.
- a holder per se is also provided in the circuit breaker S 2 mentioned above.
- the coil 80, the extension 82 with the fixed contact piece on the leg 84, the arc guide rail 86 and the holder 90 for the bimetallic 100 form a unit.
- an armature not shown
- a core also not shown, which is fixedly connected to the coil 80, wherein the core can, for example, be fastened to the coil web 81 or can be formed (see FIGS. 6 and 7).
- an anchor guide tube (not shown in more detail) can be provided for guiding the armature.
- the coil is made of magnetically highly conductive material, an independent yoke is no longer necessary.
- FIGS. 2 and 3 illustrate how the coil 80 for the trigger can be made.
- webs 10, 11 and 12 .... can be seen, which lie approximately in a first plane, the distance D from each other being the same.
- the first level is represented by the line E ⁇ .
- a second plane E 2 is spanned parallel to the first plane, in which second webs 20, 21... Lie, the spacing of which from one another also equals the distance D.
- the first and second webs 10, 1 1, 12, ...; 20, 21, ... run parallel to one another and are each offset from one another and each have a U-shape, the open sides 30, 31, 32 and 40, 41 ... of which are each open to the opposite plane.
- the web 10 is connected to the web 20 with an inclined connecting web 50; the web 20 is connected at the opposite end to the web 11 via a connecting web 51, the web 11 with the web 21 via a web 52 at the opposite end, etc., so that there is a coil arranged in a zigzag pattern and winding around a central axis MM forms from connecting webs, first and second webs.
- a wall-shaped connecting line is connected to the first web 10 via a connecting web 60.
- device 61 connected, and on the opposite last web, for example, a fixing point for a bimetallic metal can be attached or molded.
- the web 10 is bent in accordance with the bending line B so that the U-shape points to the plane of the drawing; the web 20 is bent according to the bending line B 2 so that the U-shape is open to the viewer; the web 1 1 is again folded so that the tip faces the viewer and the open U-shape faces the plane of the drawing, etc., so that only a bend around the bending lines B ,, B 2 , B 3 . .. is required.
- Fig. 3 it is shown that the connecting webs 50, 51, 52, 60 each form an angle with each other.
- the connecting webs 50, 51, 52 ... and the web 60 can run parallel to one another, wherein the U-shape can be rounded with two parallel legs or square.
- FIG. 1 shows a top view in the direction of arrow I in FIG. 2. Due to the special arrangement, punching and winding, a coil is formed which surrounds an interior 70 whose central axis corresponds to the central axis M, and a coil tube 71 can be inserted into this recess 70, in which a core 72 and an armature 73 are shown in broken lines are located; the coil tube 71 corresponds to the usual coil tubes, as are available and known in commercially available magnetic triggers.
- Steel strip can be used as the material, which is copper-plated on both sides to improve the electrical conductivity; such steel strips can be obtained commercially.
- the yoke which is usually present in a magnetic release, can be integrally formed on the coil in which, for example, the feed line 61 is shaped accordingly.
- the core can also be attached to the connecting conductor 61, which could also carry a fixed contact at the same time.
- projections are expediently provided on the inner surface of the housing which engage in the space between the individual webs 20, 21 or 10, 11 ... in order to guide the coil and to prevent it that when a short circuit occurs, the individual connecting webs 60, 50, 51, 52 ... are tightened against each other, which is not shown.
- the circularly drawn armature or core in FIG. 1 can also be rectangular in cross section; it can be guided in a coil sleeve, as shown, or in housing projections which are provided on the guide strips or guide projections on the housing for guiding and holding the coil.
- the invention is illustrated with the aid of a plunger magnet trigger; there is of course also the possibility of designing the core in such a way that it completely passes through the coil, in which case the anchor can also be designed as a hinged anchor. Because the coil is made of iron, it acts as a yoke. At high currents, copper-clad iron can be used.
- FIG. 6 is a plan view of a modified coil according to FIG. 1.
- the coil according to FIG. 6, which has been given the reference number 110 here, is constructed and manufactured in the same way as the coil according to FIG. 1; this can be seen from the reference numbers 10, 11, 12 20, 21 ...., 51 61
- a web 11 would be formed, which in the The inner region 71 of the coil protrudes and at the inner end, approximately in the center line MM (see FIG. 5), carries a leg 112 which extends parallel to the center line and into the inside of the coil 110.
- This leg 112 serves as the core for the coil arrangement according to FIG. 5, in connection with FIGS. 6 and 7.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Electromagnets (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19909111 | 1999-03-03 | ||
DE19909111 | 1999-03-03 | ||
PCT/EP2000/001699 WO2000052723A1 (de) | 1999-03-03 | 2000-02-29 | Magnetischer auslöser, insbesondere für einen leitungsschutzschalter, und leitungsschutzschalter mit einem solchen magnetauslöser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1157400A1 true EP1157400A1 (de) | 2001-11-28 |
EP1157400B1 EP1157400B1 (de) | 2002-12-11 |
Family
ID=7899440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00915158A Expired - Lifetime EP1157400B1 (de) | 1999-03-03 | 2000-02-29 | Magnetischer auslöser, insbesondere für einen leitungsschutzschalter, und leitungsschutzschalter mit einem solchen magnetauslöser |
Country Status (5)
Country | Link |
---|---|
US (1) | US6525632B2 (de) |
EP (1) | EP1157400B1 (de) |
AT (1) | ATE229692T1 (de) |
DE (2) | DE50000916D1 (de) |
WO (1) | WO2000052723A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10058874A1 (de) * | 2000-11-27 | 2002-03-21 | Siemens Ag | Spule mit mäanderförmigem Leiter |
DE10126854A1 (de) * | 2001-06-01 | 2002-12-19 | Siemens Ag | Magnetjoch eines elektromagnetischen Auslösers |
DE10209415B4 (de) * | 2002-03-05 | 2005-12-01 | Siemens Ag | Vorrichtung zur berührungslosen Hochfrequenzübertragung |
EP1488432B1 (de) * | 2002-03-27 | 2010-05-19 | Commergy Technologies Limited | Magnetische anordnung |
CA2579485A1 (en) * | 2004-11-22 | 2006-01-06 | Abb Patent Gmbh | Switching device having an electromagnetic release |
DE102004056279A1 (de) * | 2004-11-22 | 2006-05-24 | Abb Patent Gmbh | Schaltgerät mit einem thermischen und elektromagnetischen Auslöser |
EP1815489A1 (de) * | 2004-11-22 | 2007-08-08 | ABB PATENT GmbH | Schaltgerät mit einem elektromagnetischen auslöser |
DE102004056280A1 (de) * | 2004-11-22 | 2006-05-24 | Abb Patent Gmbh | Schaltgerät mit einem elektromagnetischen Auslöser |
DE102004056282A1 (de) * | 2004-11-22 | 2006-05-24 | Abb Patent Gmbh | Schaltgerät mit einem thermischen und elektromagnetischen Auslöser |
FR2883098B1 (fr) * | 2005-03-09 | 2008-05-09 | Hager Electro | Sous-ensemble magnetique plat |
DE202010017328U1 (de) | 2010-06-29 | 2011-11-08 | Ellenberger & Poensgen Gmbh | Stromleitspule |
US8890019B2 (en) | 2011-02-05 | 2014-11-18 | Roger Webster Faulkner | Commutating circuit breaker |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE148789C (de) * | ||||
DE666920C (de) * | 1935-05-15 | 1938-10-31 | Siemens Schuckertwerke Akt Ges | Verfahren zur Herstellung von Spulen fuer elektrotechnische Zwecke |
GB1145265A (en) * | 1965-06-03 | 1969-03-12 | Eisler Paul | Methods of producing helicoids |
DE1764087A1 (de) * | 1968-03-30 | 1971-04-22 | Ibm Deutschland | Verfahren zum Herstellen von Faltwicklungen fuer elektrische Geraete |
DE3143210A1 (de) * | 1981-10-30 | 1983-05-11 | Max-E. Dipl.-Ing. 7320 Göppingen Reeb | "elektrisches bauteil" |
FR2586135A1 (fr) * | 1985-08-06 | 1987-02-13 | Dumont Alain | Electro-aimants juxtaposes et alignes et procede de realisation de tels electro-aimants |
FR2657454B1 (fr) * | 1990-01-23 | 1995-07-13 | Aerospatiale | Procede pour la realisation de bobinages electromagnetiques. |
US5126715A (en) * | 1990-07-02 | 1992-06-30 | General Electric Company | Low-profile multi-pole conductive film transformer |
JPH04196507A (ja) * | 1990-11-28 | 1992-07-16 | Tokin Corp | 薄型トランス |
US5291173A (en) * | 1992-02-21 | 1994-03-01 | General Electric Co. | Z-foldable secondary winding for a low-profile, multi-pole transformer |
FR2721431B1 (fr) * | 1994-06-20 | 1996-09-06 | Ies | Procédé pour réaliser des composants magnétiques à bobinages simplifiés, et composants ainsi réalisés. |
US5886599A (en) * | 1997-12-15 | 1999-03-23 | Eaton Corporation | Molded case circuit breaker having an improved electromagnetic trip |
-
2000
- 2000-02-29 AT AT00915158T patent/ATE229692T1/de not_active IP Right Cessation
- 2000-02-29 EP EP00915158A patent/EP1157400B1/de not_active Expired - Lifetime
- 2000-02-29 WO PCT/EP2000/001699 patent/WO2000052723A1/de active IP Right Grant
- 2000-02-29 DE DE50000916T patent/DE50000916D1/de not_active Expired - Fee Related
- 2000-03-02 DE DE10010093A patent/DE10010093B4/de not_active Expired - Fee Related
-
2001
- 2001-09-04 US US09/946,942 patent/US6525632B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0052723A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20020050889A1 (en) | 2002-05-02 |
EP1157400B1 (de) | 2002-12-11 |
DE10010093B4 (de) | 2004-11-04 |
DE50000916D1 (de) | 2003-01-23 |
WO2000052723A1 (de) | 2000-09-08 |
DE10010093A1 (de) | 2000-09-14 |
US6525632B2 (en) | 2003-02-25 |
ATE229692T1 (de) | 2002-12-15 |
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