WO2005101441A1 - Coil body for switchgear - Google Patents

Coil body for switchgear Download PDF

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Publication number
WO2005101441A1
WO2005101441A1 PCT/DE2004/000760 DE2004000760W WO2005101441A1 WO 2005101441 A1 WO2005101441 A1 WO 2005101441A1 DE 2004000760 W DE2004000760 W DE 2004000760W WO 2005101441 A1 WO2005101441 A1 WO 2005101441A1
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WO
WIPO (PCT)
Prior art keywords
housing
coil
tabs
coil body
bobbin
Prior art date
Application number
PCT/DE2004/000760
Other languages
German (de)
French (fr)
Inventor
Markus Meier
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112004002799T priority Critical patent/DE112004002799D2/en
Priority to PCT/DE2004/000760 priority patent/WO2005101441A1/en
Publication of WO2005101441A1 publication Critical patent/WO2005101441A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H2050/046—Assembling parts of a relay by using snap mounting techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former

Definitions

  • the present invention relates to a coil former for switching devices according to the preamble of claim 1.
  • Switchgear can have electromagnetic controlled switches.
  • a switch essentially comprises a coil wound on a coil former.
  • the bobbin is suitably mounted on a yoke together with the coil. Both the coil body and the yoke are either fixed or mounted in the switchgear housing via corresponding damping elements.
  • the coil is activated or deactivated by a correspondingly applied switching signal in order to attract or repel an armature arranged near the coil and thus to close or open switching contacts.
  • the coil body and yoke are either mounted separately in the housing of the switching device using appropriately provided means, or the coil body and yoke are mechanically designed such that the coil body can be fitted into the yoke and this unit is then attached Housing is attached.
  • the coil body and yoke are mechanically designed such that the coil body can be fitted into the yoke and this unit is then attached Housing is attached.
  • such designs have the disadvantage that their assembly is complex.
  • both parts are usually assembled separately in the housing by being clamped between two housing halves.
  • both are fastened together as a unit in the housing.
  • the coil has a contour that matches a corresponding contour of the
  • Yoke corresponds so that the coil body can be inserted into the contour of the yoke.
  • This variant in which the bobbin forms a unit with the coil and yoke, has the additional disadvantage that it must be stored in a damped manner in order to intercept the relative movement of the coil when switching.
  • the object of the present invention is therefore to provide a coil former for switching devices with a differently designed fastening.
  • the inventive design of the coil body results in easier assembly, but also disassembly, of the coil body in the device housing of the switching device.
  • the design according to the invention also makes it possible to dispense with the additional damping that would be necessary if the coil former was first mounted on the yoke.
  • the design of the coil body according to the invention has the advantage that the volume of space in the housing required for the coil body can be reduced, since very little space is required for fastening the coil body according to the design according to the invention.
  • FIG. 1 shows a top view of an exemplary embodiment of the coil former according to the invention
  • FIG. 3 shows the housing of a switching device into which three bobbins with coils according to the invention are introduced in the assembly direction
  • FIG. 1 shows the top view of an exemplary embodiment of the coil body 20 according to the invention, which, as shown in FIG. 3, is to be introduced together with the coil winding 25 in the mounting direction into the housing 10 of the switching device.
  • Figure 2 shows this embodiment of the bobbin 20 according to the invention from the bottom.
  • the coil body 20 according to the invention has four tabs 21 on its underside, which are preferably arranged as shown in FIG. Areas of the individual tabs 21 have an opening 22 which cooperate with corresponding means in the housing 10 in order to be able to securely fasten the coil body in the mounted position in the housing.
  • these means are the latching hooks 12 shown in FIG. 4 in the housing 10.
  • four bracing elements 23 are provided on the underside of the coil body 20 in order to also secure the coil body in the housing 10 in the assembled position without play.
  • additional means designed at least as partial segments 24 can be provided, which are used to guide a spring that is supported on the coil former.
  • the coil bodies 20 with coils 25 are introduced into chambers 11 in the housing 10 of the switching device in the mounting direction (indicated by an arrow).
  • the rags will first be inserted into the housing at the intended location.
  • the tabs 21 will first come into contact with the latching hooks 12 provided in the housing.
  • the locking lugs 12 cause the tabs to be slightly bent inwards when they are bent further.
  • the tensioning elements 22 will come into contact with the housing 10 during further insertion. If the bobbin is now further inserted into the housing 10 in the assembly direction, these bracing elements are pressed in and thus a slight pretensioning reached.
  • the latching hooks 12 of the housing 10 snap into the openings 22 of the tabs 21, so that the bobbins 20 are securely fastened in the housing 10. Due to the bias caused by the tensioning elements 23, the latching hooks are also pressed against the side 22 x of the openings 22, which is located in the direction of the coil, so that a play-free fastening is also achieved.
  • the present invention which is characterized in that tabs and bracing elements are provided for play-free fastening, has now been described using an example. However, it should not be limited to this one embodiment. Rather, further designs are conceivable and also covered by the present invention, as long as it is ensured that the tabs and bracing elements are designed in such a way that coil formers can be mounted in the housing of a switching device in the simplest manner and also in a space-saving manner. So the length of the tabs ultimately depends on the available space in the housing. The tabs themselves can also have latching hooks instead of the openings, which then snap into corresponding openings in the housing.
  • the number of tabs can also be less than that shown in the present exemplary embodiment, as long as a secure attachment is still guaranteed.
  • only two tabs can be provided, which are arranged over a large area on two sides of the coil former and in turn have two openings at the same location as the embodiment shown in FIG. 2.
  • the bracing elements could also be implemented with spiral springs or disc springs.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

A coil body for switchgear has a coil receptacle and means for securing the coil body (20) in a switchgear housing (10). The means for securing the coil body include tabs (21) and bracing elements (22) which in the assembled position permit the coil body (20) to be secured without play in the housing without requiring further means.

Description

Beschreibungdescription
Spulenkörper für SchaltgeräteCoil formers for switchgear
Die vorliegende Erfindung betrifft einen Spulenkörper für Schaltgeräte gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a coil former for switching devices according to the preamble of claim 1.
Schaltgeräte können elektromagnetische gesteuerte Schalter aufweisen. Ein Schalter umfasst dabei im Wesentlichen eine, auf einen Spulenkörper gewickelte Spule. Der Spulenkörper ist zusammen mit der Spule in geeigneter Weise auf ein Joch montiert. Sowohl der Spulenkörper als auch das Joch sind entweder fest oder über entsprechende Dämpfungselemente im Gehäuse des Schaltgerätes montiert. Durch ein entsprechend angelegtes Schaltsignal wird die Spule aktiviert bzw. deaktiviert, um einen nahe der Spule angeordneten Anker anzuziehen oder abzustoßen und somit Schaltkontakte zu schließen oder zu öffnen.Switchgear can have electromagnetic controlled switches. A switch essentially comprises a coil wound on a coil former. The bobbin is suitably mounted on a yoke together with the coil. Both the coil body and the yoke are either fixed or mounted in the switchgear housing via corresponding damping elements. The coil is activated or deactivated by a correspondingly applied switching signal in order to attract or repel an armature arranged near the coil and thus to close or open switching contacts.
Bei heute üblichen Schaltgeräten werden zur Montage von Spu- lenkörper und Joch diese entweder separat mit entsprechend vorgesehenen Mitteln direkt im Gehäuse des Schaltgerätes befestigt, oder Spulenkörper und Joch sind mechanisch so ausgebildet, dass der Spulenkörper in das Joch eingepasst werden kann und diese Einheit dann am Gehäuse befestigt wird. Solche Ausführungen haben aber den Nachteil, dass ihre Montage aufwendig ist. So werden heute üblicherweise beide Teile separat im Gehäuse montiert, indem sie zwischen zwei Gehäusehälften geklemmt werden. In einer anderen Variante werden beide zusammen als Einheit im Gehäuse befestigt. Dazu weist die Spule eine Kontur auf, die mit einer entsprechenden Kontur desIn the case of switching devices customary today, the coil body and yoke are either mounted separately in the housing of the switching device using appropriately provided means, or the coil body and yoke are mechanically designed such that the coil body can be fitted into the yoke and this unit is then attached Housing is attached. However, such designs have the disadvantage that their assembly is complex. Today, both parts are usually assembled separately in the housing by being clamped between two housing halves. In another variant, both are fastened together as a unit in the housing. For this purpose, the coil has a contour that matches a corresponding contour of the
Jochs korrespondiert, so dass der Spulenkörper in die Kontur des Jochs eingeschoben werden kann. Diese Variante, bei der Spulenkörper mit Spule und Joch eine Einheit bilden, hat aber zusätzlich den Nachteil, dass sie gedämpft gelagert werden muss, um die Relativbewegung der Spule beim Schalten abzufangen. Aufgabe der vorliegenden Erfindung ist deshalb, einen Spulenkörper für Schaltgeräte mit einer anders ausgebildeten Befestigung bereitzustellen.Yoke corresponds so that the coil body can be inserted into the contour of the yoke. This variant, in which the bobbin forms a unit with the coil and yoke, has the additional disadvantage that it must be stored in a damped manner in order to intercept the relative movement of the coil when switching. The object of the present invention is therefore to provide a coil former for switching devices with a differently designed fastening.
Diese Aufgabe wird gelöst durch einen entsprechend ausgebildeten Spulenkörper mit den Merkmalen des Anspruchs 1. Durch die erfindungsgemäße Ausbildung des Spulenkörpers ergibt sich eine einfachere Montage, aber auch Demontage, des Spulenkörpers im Gerätegehäuse des Schaltgerätes. Durch die erfin- dungsgemäße Ausbildung kann zudem auf die zusätzliche Dämpfung verzichtet werden, die notwendig wäre, wenn der Spulenkörper zuerst auf das Joch montiert wird. Zusätzlich hat die erfindungsgemäße Ausbildung des Spulenkörpers den Vorteil, dass das für den Spulenkörper notwendige Raumvolumen im Ge- häuse verringert werden kann, da für die Befestigung des Spulenkörpers nach der erfindungsgemäßen Ausbildung nur sehr wenig Platz benötigt wird.This object is achieved by an appropriately designed coil body with the features of claim 1. The inventive design of the coil body results in easier assembly, but also disassembly, of the coil body in the device housing of the switching device. The design according to the invention also makes it possible to dispense with the additional damping that would be necessary if the coil former was first mounted on the yoke. In addition, the design of the coil body according to the invention has the advantage that the volume of space in the housing required for the coil body can be reduced, since very little space is required for fastening the coil body according to the design according to the invention.
Weitere vorteilhafte Ausführungen und bevorzugte Weiterbil- düngen der Erfindung sind den Unteransprüchen zu entnehmen.Further advantageous designs and preferred further developments of the invention can be found in the subclaims.
Die Erfindung sowie vorteilhafte Ausführungsbeispiele derselben werden im Weiteren anhand der nachfolgenden Figuren näher beschrieben. Es zeigen:The invention and advantageous exemplary embodiments thereof are described in more detail below with reference to the following figures. Show it:
Fig.l eine Draufsicht eines Ausführungsbeispiels des erfindungsgemäßen Spulenkörpers,1 shows a top view of an exemplary embodiment of the coil former according to the invention,
Fig.2 die Unteransicht dieses Spulenkörpers,2 shows the bottom view of this coil former,
Fig.3 das Gehäuse eines Schaltgerätes, in das in Montagerichtung drei erfindungsgemäße Spulenkörper mit Spulen eingebracht werden,3 shows the housing of a switching device into which three bobbins with coils according to the invention are introduced in the assembly direction,
Fig.4 der Ort im Gehäuse an dem ein Spulenkörper montiert werden soll. Figur 1 zeigt die Draufsicht eines Ausführungsbeispiels des erfindungsgemäßen Spulenkörpers 20, der so wie in Figur 3 dargestellt zusammen mit der Spulenwicklung 25 in Montagerichtung in das Gehäuse 10 des Schaltgerätes eingebracht wer- den soll.4 the location in the housing where a coil former is to be mounted. FIG. 1 shows the top view of an exemplary embodiment of the coil body 20 according to the invention, which, as shown in FIG. 3, is to be introduced together with the coil winding 25 in the mounting direction into the housing 10 of the switching device.
Figur 2 zeigt dieses Ausführungsbeispiel des erfindungsgemäßen Spulenkörpers 20 von der Unterseite. In dem hier dargestellten Ausführungsbeispiel, weist der erfindungsgemäße Spu- lenkörper 20 an seiner Unterseite vier Lappen 21 auf, die vorzugsweise so wie in Figur 2 dargestellt angeordnet sind. Bereiche der einzelnen Lappen 21 weisen dabei eine Öffnung 22 auf, die mit entsprechenden Mitteln im Gehäuse 10 zusammenwirken, um den Spulenkörper in montierter Stellung sicher im Gehäuse befestigen zu können. Im vorliegenden Ausführungsbei- spiel sind diese Mittel, die in Figur 4 gezeigten Rasthaken 12 im Gehäuse 10. Weiterhin sind auf der Unterseite des Spulenkörpers 20 vier Verspannelemente 23 vorgesehen, um den Spulenkörper in der montierten Stellung auch spielfrei im Ge- häuse 10 zu befestigen. An der Unterseite des SpulenkörpersFigure 2 shows this embodiment of the bobbin 20 according to the invention from the bottom. In the exemplary embodiment shown here, the coil body 20 according to the invention has four tabs 21 on its underside, which are preferably arranged as shown in FIG. Areas of the individual tabs 21 have an opening 22 which cooperate with corresponding means in the housing 10 in order to be able to securely fasten the coil body in the mounted position in the housing. In the present exemplary embodiment, these means are the latching hooks 12 shown in FIG. 4 in the housing 10. Furthermore, four bracing elements 23 are provided on the underside of the coil body 20 in order to also secure the coil body in the housing 10 in the assembled position without play. At the bottom of the bobbin
20 können zusätzliche zumindest als Teilsegmente 24 ausgebildete Mittel vorgesehen sein, die zur Führung einer Feder, die sich auf dem Spulenkörper abstützt, dienen.20, additional means designed at least as partial segments 24 can be provided, which are used to guide a spring that is supported on the coil former.
Wie in Figur 4 angedeutet werden bei der Montage die Spulenkörper 20 mit Spulen 25 in Montagerichtung (durch einen Pfeil angedeutet) in Kammern 11 im Gehäuse 10 des Schaltgerätes eingebracht. Dazu werden als erstes die Lappen an dem vorgesehenen Ort in das Gehäuse eintauchen. Beim Einbringen der Spulenkörper werden als Erstes die Lappen 21 in Berührung mit den im Gehäuse vorgesehenen Rasthaken 12 kommen. Die Rastnasen 12 führen dazu, dass die Lappen beim weiteren Einbiegen leicht nach innen gebogen werden. Als Nächstes werden beim weiteren Einbringen die Verspannelemente 22 mit dem Gehäuse 10 in Berührung kommen. Wird der Spulenkörper nun weiter in Montagerichtung in das Gehäuse 10 eingeführt, werden diese Verspannelemente eingedrückt und somit eine leichte Vorspan- nung erreicht. Bei einem weiteren Einführen der Spulenköper rasten dann die Rasthaken 12 des Gehäuses 10 in die Öffnungen 22 der Lappen 21 ein, so dass die Spulenkörper 20 sicher im Gehäuse 10 befestigt sind. Durch die, von den Verspannelemen- ten 23 bewirkte Vorspannung werden die Rasthaken zudem an die Seite 22 x der Öffnungen 22 gedrückt, die sich in Richtung der Spule befindet, so dass dadurch auch eine spielfreie Befestigung erreicht wird.As indicated in FIG. 4, during assembly, the coil bodies 20 with coils 25 are introduced into chambers 11 in the housing 10 of the switching device in the mounting direction (indicated by an arrow). To do this, the rags will first be inserted into the housing at the intended location. When the coil formers are introduced, the tabs 21 will first come into contact with the latching hooks 12 provided in the housing. The locking lugs 12 cause the tabs to be slightly bent inwards when they are bent further. Next, the tensioning elements 22 will come into contact with the housing 10 during further insertion. If the bobbin is now further inserted into the housing 10 in the assembly direction, these bracing elements are pressed in and thus a slight pretensioning reached. When the bobbin is inserted further, the latching hooks 12 of the housing 10 snap into the openings 22 of the tabs 21, so that the bobbins 20 are securely fastened in the housing 10. Due to the bias caused by the tensioning elements 23, the latching hooks are also pressed against the side 22 x of the openings 22, which is located in the direction of the coil, so that a play-free fastening is also achieved.
Die vorliegende Erfindung, die dadurch gekennzeichnet ist, dass für eine spielfreie Befestigung Lappen und Verspannelemente vorgesehen sind, wurde nun zuvor anhand eines Beispiels beschrieben. Sie soll aber nicht auf diese eine Ausführung beschränkt sein. Vielmehr sind weitere Ausführungen denkbar und von der vorliegenden Erfindung mit erfasst, solange sichergestellt ist, dass die Lappen und Verspannelemente so ausgebildet sind, dass Spulenkörper auf einfachste Weise und auch platzsparend im Gehäuse eines Schaltgerätes montiert werden können. So ist die Länge der Lappen letztendlich ab- hängig von dem verfügbaren Raum im Gehäuse. Die Lappen selbst können auch anstelle der Öffnungen Rasthaken aufweisen, die dann in entsprechende Öffnungen im Gehäuse einrasten. Die Anzahl der Lappen kann auch geringer sein, als die im vorliegenden Ausführungsbeispiel gezeigte, solange noch eine siche- re Befestigung gewährleistet ist. So können beispielsweise nur zwei Lappen vorgesehen sein, die großflächig an zwei Seiten des Spulenkörpers angeordnet sind und selbst wiederum zwei Öffnungen, an der gleichen Stelle, wie in Figur 2 dargestellten Ausführungsform aufweisen. Die Verspannelemente könnten auch anstelle der in Figur 2 gezeigten vorteilhaften Ausbildung, die einstückig mit dem Spulenkörper ausgebildet ist, auch mit Spiralfedern oder Tellerfedern realisiert sein. The present invention, which is characterized in that tabs and bracing elements are provided for play-free fastening, has now been described using an example. However, it should not be limited to this one embodiment. Rather, further designs are conceivable and also covered by the present invention, as long as it is ensured that the tabs and bracing elements are designed in such a way that coil formers can be mounted in the housing of a switching device in the simplest manner and also in a space-saving manner. So the length of the tabs ultimately depends on the available space in the housing. The tabs themselves can also have latching hooks instead of the openings, which then snap into corresponding openings in the housing. The number of tabs can also be less than that shown in the present exemplary embodiment, as long as a secure attachment is still guaranteed. For example, only two tabs can be provided, which are arranged over a large area on two sides of the coil former and in turn have two openings at the same location as the embodiment shown in FIG. 2. Instead of the advantageous embodiment shown in FIG. 2, which is formed in one piece with the coil former, the bracing elements could also be implemented with spiral springs or disc springs.

Claims

Patentansprüche claims
1. Spulenkörper (20) für Schaltgeräte, mit einer Aufnahme für die Spule und Mitteln zum Befestigen des Spulenkörpers (20) im Gehäuse (10) des Schaltgeräts, d a d u r c h g e k e n n z e i c h n e t , d a s s die Mittel zum Befestigen des Spulenkörpers (20) Lappen (21) und Verspannelemente (22) umfassen, die so ausgebildet sind, dass in einer montierten Stellung der Spulenkör- per (20) ohne weitere Mittel spielfrei im Gehäuse befestigbar ist.1. coil body (20) for switching devices, with a receptacle for the coil and means for fastening the coil body (20) in the housing (10) of the switching device, characterized in that the means for fastening the coil body (20) tabs (21) and bracing elements (22), which are designed so that in a mounted position the coil body (20) can be fastened without play in the housing without any further means.
2. Spulenkörper (20) nach Anspruch 1, d a du r c h g e k e n n z e i c h n e t , d a s s die Lappen (21) an der Unterseite des Spulenkörpers (20) so angebracht sind, dass sie in Richtung der Achse des Spulenkörpers vom Spulenkörper wegzeigen.2. coil former (20) according to claim 1, d a du r c h g e k e n n z e i c h n e t, that the tabs (21) on the underside of the coil former (20) are attached so that they point away from the coil former in the direction of the axis of the coil former.
3. Spulenkörper (20) nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , d a s s Bereiche (22) der Lappen (21) so ausgebildet sind, und so mit entsprechenden Mitteln (12) im Gehäuse zusammenwirken, dass eine sichere Befestigung des Spulenkörpers im Gehäuse sichergestellt ist.3. coil former (20) according to claim 1 or 2, characterized in that regions (22) of the tabs (21) are formed and so cooperate with corresponding means (12) in the housing that a secure attachment of the coil former is ensured in the housing ,
4. Spulenkörper (20) nach Anspruch 3, d a d u r c h g e k e n n z e i c h n e t , d a s s die Bereiche der Lappen (21) als Öffnungen (22) ausgebildet sind, in die Rastnasen (12) des Gehäuses (10) eingrei- fen.4. coil former (20) according to claim 3, d a d u r c h g e k e n n z e i c h n e t, that the areas of the tabs (21) are designed as openings (22), engage in the locking lugs (12) of the housing (10).
5. Spulenkörper (20) nach Anspruch 3 oder 4, d a d u r c h g e k e n n z e i c h n e t , d a s s die Verspannelemente federnde Elemente (23) an der Unter- seite des Spulenkörpers (20) sind, welche den Spulenkörper (20) gegen das Gehäuse (10) vorspannen, wenn in der montierten Stellung die Bereiche (22) der Lappen (21) mit den entsprechenden Mitteln (12) im Gehäuse zusammenwirken.5. bobbin (20) according to claim 3 or 4, characterized in that the bracing elements are resilient elements (23) on the underside of the bobbin (20) which bias the bobbin (20) against the housing (10) when in the assembled position, the areas (22) of the tabs (21) with the corresponding means (12) interact in the housing.
6. Spulenkörper (20) nach einem der vorherigen Ansprüche, d a d u r c h g e k e n n z e i c h n e t , d a s s der Spulenkörper zusätzliche Mittel umfasst, die den Spulenkörper auch in einer Richtung quer zur Montagerichtung im Gehäuse (10) fixiert. 6. bobbin (20) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that the bobbin comprises additional means which also fixes the bobbin in a direction transverse to the mounting direction in the housing (10).
PCT/DE2004/000760 2004-04-13 2004-04-13 Coil body for switchgear WO2005101441A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112004002799T DE112004002799D2 (en) 2004-04-13 2004-04-13 Bobbin for switchgear
PCT/DE2004/000760 WO2005101441A1 (en) 2004-04-13 2004-04-13 Coil body for switchgear

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Application Number Priority Date Filing Date Title
PCT/DE2004/000760 WO2005101441A1 (en) 2004-04-13 2004-04-13 Coil body for switchgear

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Cited By (2)

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EP1978536A1 (en) * 2007-03-28 2008-10-08 Siemens Aktiengesellschaft Electromagnetic switching device
US7898373B2 (en) 2006-09-15 2011-03-01 Siemens Aktiengesellschaft Motor starter

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7898373B2 (en) 2006-09-15 2011-03-01 Siemens Aktiengesellschaft Motor starter
EP1978536A1 (en) * 2007-03-28 2008-10-08 Siemens Aktiengesellschaft Electromagnetic switching device
US7737811B2 (en) 2007-03-28 2010-06-15 Siemens Aktiengesellschaft Electromechanical switching device
CN101276706B (en) * 2007-03-28 2010-12-01 西门子公司 Electromechanical switching device

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