EP1473751A1 - Elektromagnetischer Auslöser - Google Patents
Elektromagnetischer Auslöser Download PDFInfo
- Publication number
- EP1473751A1 EP1473751A1 EP03009932A EP03009932A EP1473751A1 EP 1473751 A1 EP1473751 A1 EP 1473751A1 EP 03009932 A EP03009932 A EP 03009932A EP 03009932 A EP03009932 A EP 03009932A EP 1473751 A1 EP1473751 A1 EP 1473751A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- armature
- trigger according
- magnetic core
- 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
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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
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
Definitions
- the invention relates to an electromagnetic release, especially a circuit breaker with a coil, one in this movable anchor and a magnetic yoke, which in one piece with an at least partially in the coil engaging magnetic core is formed, as well as with a spring for the tension of the anchor.
- an electromagnetic Trigger is known for example from DE 101 26 851 C1.
- the invention has for its object an electromagnetic Triggers, especially for a circuit breaker, to specify which one with a simple construction is narrow.
- an electromagnetic Trigger with the features of claim 1.
- This trigger points, in principle comparable to one conventional electromagnetic release with submersible anchor, a coil, an armature slidable in it, a magnetic yoke with a core, as well as an anchor with a force against the direction of actuation spring.
- the armature is and the core of the magnet yoke is not symmetrical in the Cross section of the coil arranged. Rather, the magnetic core points an asymmetrically arranged in the coil cross-section, at least core surface oriented approximately normal to the coil axis on which the magnet armature is opposite with an anchor surface.
- This anchor surface kinks at least approximately at right angles from an armature main body that is in the coil is displaceable parallel to the coil axis.
- the anchor or a with this cooperating plunger does not penetrate the magnetic core or the magnetic yoke.
- Both the armature and the magnetic core are preferred as single-layer sheet metal components, preferably with the same or similar thickness. Both sheet metal components
- the armature and core preferably point within the coil a rectangular cross-section, the respective Facing narrow sides. Overall, the inside height is the approximately rectangular inner cross section of the coil more than twice, preferably more than three times the inside width.
- the magnet armature is preferably composed as a one-piece component formed with a plunger and penetrates axially the entire coil. So one side is out of the spool outstanding anchor as a plunger for actuation in particular a moving contact and / or an unlatching device a circuit breaker can be used while on the opposite side of the coil from this protruding Part of the anchor is preferably used to attach the spring.
- This spring is preferred in a particularly space-saving manner formed as a conical compression spring, which between the coil or another immovable component, especially one rigid housing structure and a molded on the anchor main body Spring bearing legs, somewhat asymmetrical to the coil axis, is clamped.
- the spring can, for example also designed as a coil spring or spring of other geometry his.
- the anchor main body which is also the plunger forms, slidable in the coil past the magnetic core.
- a partition made of non-magnetic material is structurally advantageous preferably part of a bobbin carrying the coil.
- Is the switchgear with the electromagnetic release in particular circuit breakers with an arc quenching chamber is an arc guide rail preferably in a manner known per se to the magnetic yoke formed.
- a particularly space-saving construction is given by the arc guide rail in cross section is arranged at right angles to the magnetic core.
- a number of deion sheets an arc quenching chamber are in this Embodiment also at right angles to the magnetic core and arranged to the magnet armature. Because typically the width the deion sheets is less than the height of the deion sheets formed stack, is therefore preferably approximately rectangular coil cross section along to through the Normals of the main direction of extension given the deion sheets aligned with the arc quenching chamber. In the transverse direction, i.e.
- the trigger builds in the plane of the deion sheets narrow. This enables it to be standardized within a Housing of a modular device, in particular with a Width of 18 mm, two electromagnetic releases of the same To accommodate the design side by side.
- Both the anchor combined with the plunger and the one with Magnetic yokes combined in the magnetic core are preferred as rational Stamped parts or stamped and bent parts to be produced.
- this part is to avoid unnecessary waste when stamping preferably shaped such that it is not bent condition an elongated, essentially straight Has shape.
- the angular offset between the magnetic core and the arc guide rail by 90 ° can still be implemented, by a crease line between the magnetic core and the arc guide rail is provided, which in the final state of Component with both the magnetic core and the arc guide rail encloses an angle of 45 ° each.
- the advantage of the invention is in particular that due to the asymmetrical arrangement of a magnetic core and one Magnetic armature in a coil of a magnetic release with a essentially rectangular internal cross-section whose width almost to the thickness of those manufactured as single-layer sheet metal components Parts magnetic core - combined with a magnetic yoke - and anchor - combined with a plunger - is limited.
- Trigger 1 of a not shown Switching device for example a circuit breaker, Motor protection switch, circuit breaker, contactor or relay, preferably in the form of a DIN rail mounted device.
- basics Components of the trigger 1 are one on a sleeve-shaped Coil body 2 mounted coil 3, a magnetic yoke 4, which is formed in one piece with a magnetic core 5, and an armature 6 which can be moved in the coil 3. This acts at the same time as a plunger for actuating a not shown interacting with a contact piece 7 on the magnetic yoke 4 Moving contact.
- a plunger surface Designated 8 One towards the magnetic yoke 4 from the Coil 3 projecting end face of the armature 6 is used as a plunger surface Designated 8.
- This tappet surface 8 limits one elongated armature main body 9, which the entire coil 3 penetrates and on the other side by a spring bearing leg 10, which is perpendicular to the anchor main body 9 is molded, is limited.
- the spring bearing leg 10 has a nose 11, the attachment of a conical compression spring trained spring 12, which on the other hand on a rigid structure, not shown, or directly is mounted on the bobbin 2 and the armature 6 counter biases the direction of actuation R.
- the anchor surface 15 is surface an armature arm 16, which is part of the armature 6 kinked at right angles from the anchor main body 9.
- the anchor 6 has thus an overall F-shape with the spring bearing leg 10 and the arm 16 as a parallel F-leg.
- the armature 6 is a sheet metal stamped part with a thickness d manufactured, which is at least approximately the thickness of the magnetic core 5 corresponds and is slightly smaller than the inside width b of the coil 3.
- the inner height h of the coil 3 is essentially given by the sum of the core width k des Magnetic core 5 and the plunger width s of the armature 6.
- the core width k corresponds approximately to the width of the anchor surface 15 and has a direct influence on the magnetic force between the core surface 14 and the anchor surface 15.
- the ram width s the anchor main body 9, however, is of primary importance for the mechanical stability of the anchor 6.
- the Core width k, the direct influence on the impact of the Has magnet armature 6, the plunger width s exceeds by more than 50%. Is located between the armature main body 9 and the magnetic core 5 one formed integrally with the bobbin 2 Partition 17, preferably made of plastic, which the free Mobility of the armature main body 9 relative to the magnetic core 5 ensures.
- the inner height h of the coil 3 is in the embodiment more than three times the inside width b. Due to the small internal width b, the total width is B of the trigger 1, which is only slightly the width of the coil 3rd exceeds, dimensioned such that two similar triggers 1 find space next to each other in an 18 mm wide housing.
- the magnetic yoke 4 At the magnetic yoke 4 is an arc guide rail in one piece or arc rail 18 formed, which an arc quenching chamber limited.
- the geometry of the magnetic yoke 4 with the Arc guide rail 18 is particularly shown in FIGS 5a to 5d clearly.
- Both the arc guide rail 18 and the magnetic core 5 also integrally formed on the magnetic yoke 4 are aligned parallel to the coil axis A, but by 90 ° twisted against each other. Despite this twist, the magnetic yoke is 4 including the magnetic core 5 and the arc guide rail 18 as a stamped and bent part from a stamped Sheet metal strip made, which was originally an elongated straight shape.
- the twist of the magnetic core is possible by 90 ° relative to the arc guide rail a crease line 19, which with each of the parts mentioned 5.18 each includes a 45 ° angle. This is the magnetic yoke 4 can be produced with minimal waste during the punching process.
- FIGS 6 to 9 An alternative embodiment of an electromagnetic Trigger 1 show FIGS 6 to 9.
- the difference to the above explained first embodiment consists essentially in the form of the magnetic yoke 4, which is shown in FIG 10a to 10d is shown in more detail.
- an L-shape By fitting the individual L-shaped stampings are also low-waste Manufacturing possible.
- the bending process is particularly special simple.
- the trigger 1 is distinguished due to a simple structure with few rationally producible Items from, both the anchor 6 and that Magnet yoke 4, as explained in more detail above, are multifunctional. There is one in connection with this multifunctionality Saving on soldering, welding or other connection points.
- the electromagnetic release 1 is therefore also very good for manual assembly is suitable.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
Description
- FIG 1
- im Querschnitt ein erstes Ausführungsbeispiel eines elektromagnetischen Auslösers,
- FIG 2
- eine Vorderansicht des Auslösers nach FIG 1,
- FIG 3
- eine Draufsicht auf den Auslöser nach FIG 1,
- FIG 4
- eine perspektivische Ansicht des Auslösers nach FIG 1,
- FIG 5a bis d
- in verschiedenen Ansichten ein Magnetjoch des Auslösers nach den FIG 1 bis 4,
- FIG 6
- im Querschnitt ein zweites Ausführungsbeispiel eines elektromagnetischen Auslösers,
- FIG 7
- eine Vorderansicht des Auslösers nach FIG 6,
- FIG 8
- eine Draufsicht auf den Auslöser nach FIG 6,
- FIG 9
- eine perspektivische Ansicht des Auslösers nach FIG 6, und
- FIG 10a bis d
- in verschiedenen Ansichten ein Magnetjoch des Auslösers nach den FIG 6 bis 9.
Claims (13)
- Elektromagnetischer Auslöser mit einer Spule (3), einem in dieser verschiebbaren Anker (6) und einem Magnetjoch (4), welches einteilig mit einem zumindest teilweise in die Spule (3) eingreifenden Magnetkern (5) ausgebildet ist, sowie einer Feder (12) zur Spannung des Ankers (6),
dadurch gekennzeichnet, dass der Magnetkern (5) und der Anker (6) innerhalb des Querschnitts der Spule (3) asymmetrisch angeordnet sind, wobei einer zumindest annähernd normal zur Spulenachse (A) angeordneten Kernfläche (14) des Magnetkerns (5) innerhalb der Spule (3) eine zumindest annähernd rechtwinklig von einem parallel zur Spulenachse (A) verlaufenden Ankerhauptkörper (9) abknickende Ankerfläche (15) gegenüberliegt. - Auslöser nach Anspruch 1,
dadurch gekennzeichnet, dass der Ankerhauptkörper (9) axial die gesamte Spule (3) durchdringt. - Auslöser nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Spule (3) einen langgestreckten Querschnitt mit einer Innenbreite (b) und einer Innenhöhe (h), welche mehr als das Doppelte der Innenbreite (b) beträgt, aufweist. - Auslöser nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass der Magnetkern (5) als einlagiges Blechbauteil ausgebildet ist. - Auslöser nach einem der Ansprüche 2 bis 4,
dadurch gekennzeichnet, dass der Magnetkern (5) einen zumindest annähernd rechteckigen Querschnitt mit einer Dicke (d) aufweist, welche annähernd der Innenbreite (b) der Spule entspricht. - Auslöser nach einem der Ansprüche 1 bis 5,
gekennzeichnet durch eine in der Spule (3) zwischen dem Ankerhauptkörper (9) und dem Magnetkern (5) angeordnete Trennwand (17) aus einem nicht magnetischen Material. - Auslöser nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die Feder (12) asymmetrisch relativ zum Spulenquerschnitt, im Wesentlichen parallel zur Spulenachse (A) angeordnet ist. - Auslöser nach Anspruch 7,
gekennzeichnet durch einen am Ankerhauptkörper (9) angeformten, zumindest annähernd rechtwinklig zu diesem angeordneten Federlagerschenkel (10). - Auslöser nach Anspruch 7 oder 8
dadurch gekennzeichnet, dass die Feder (12) als Schraubenfeder ausgebildet ist. - Auslöser nach Anspruch 7 oder 8
dadurch gekennzeichnet, dass die Feder (12) als Kegeldruckfeder ausgebildet ist. - Auslöser nach einem der Ansprüche 1 bis 10,
gekennzeichnet durch eine einstückig am Magnetjoch (4) angeformte Lichtbogenleitschiene (18). - Auslöser nach Anspruch 11,
dadurch gekennzeichnet, dass die Lichtbogenleitschiene (18) einen zumindest annähernd rechteckigen Querschnitt aufweist, welcher relativ zum Querschnitt des Magnetkerns (5) um 90° verdreht ist. - Auslöser nach Anspruch 12,
dadurch gekennzeichnet, dass das Magnetjoch (4) zusammen mit der Lichtbogenleitschiene (18) aus einem langgestreckten, im Wesentlichen geraden Blechstreifen geformt ist.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES03009932T ES2258182T3 (es) | 2003-04-30 | 2003-04-30 | Mecanismo de disparo electromagnetico. |
| EP20030009932 EP1473751B1 (de) | 2003-04-30 | 2003-04-30 | Elektromagnetischer Auslöser |
| DE50302699T DE50302699D1 (de) | 2003-04-30 | 2003-04-30 | Elektromagnetischer Auslöser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20030009932 EP1473751B1 (de) | 2003-04-30 | 2003-04-30 | Elektromagnetischer Auslöser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1473751A1 true EP1473751A1 (de) | 2004-11-03 |
| EP1473751B1 EP1473751B1 (de) | 2006-03-22 |
Family
ID=32981790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030009932 Expired - Lifetime EP1473751B1 (de) | 2003-04-30 | 2003-04-30 | Elektromagnetischer Auslöser |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1473751B1 (de) |
| DE (1) | DE50302699D1 (de) |
| ES (1) | ES2258182T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2421019A1 (de) * | 2010-08-21 | 2012-02-22 | Abb Ag | Magnetsystem und Installationsschaltgerät mit einem Magnetsystem |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2580744B (en) * | 2017-05-15 | 2022-06-01 | Alfanar Company | An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE493806C (de) * | 1929-01-18 | 1930-03-13 | Oerlikon Maschf | Elektromagnetischer UEberstrom-Schnellschalter |
| DE937835C (de) * | 1952-01-31 | 1956-01-19 | Rudolf Bogenschuetz Ges Mit Be | Selbstschalter, insbesondere in Stoepselform |
| DE10126851C1 (de) * | 2001-06-01 | 2002-12-19 | Siemens Ag | Schaltgerät mit einem elektromagnetischen Auslöser |
-
2003
- 2003-04-30 ES ES03009932T patent/ES2258182T3/es not_active Expired - Lifetime
- 2003-04-30 EP EP20030009932 patent/EP1473751B1/de not_active Expired - Lifetime
- 2003-04-30 DE DE50302699T patent/DE50302699D1/de not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE493806C (de) * | 1929-01-18 | 1930-03-13 | Oerlikon Maschf | Elektromagnetischer UEberstrom-Schnellschalter |
| DE937835C (de) * | 1952-01-31 | 1956-01-19 | Rudolf Bogenschuetz Ges Mit Be | Selbstschalter, insbesondere in Stoepselform |
| DE10126851C1 (de) * | 2001-06-01 | 2002-12-19 | Siemens Ag | Schaltgerät mit einem elektromagnetischen Auslöser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2421019A1 (de) * | 2010-08-21 | 2012-02-22 | Abb Ag | Magnetsystem und Installationsschaltgerät mit einem Magnetsystem |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1473751B1 (de) | 2006-03-22 |
| DE50302699D1 (de) | 2006-05-11 |
| ES2258182T3 (es) | 2006-08-16 |
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