EP0081842A2 - Inductance or transformer - Google Patents

Inductance or transformer Download PDF

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Publication number
EP0081842A2
EP0081842A2 EP82111580A EP82111580A EP0081842A2 EP 0081842 A2 EP0081842 A2 EP 0081842A2 EP 82111580 A EP82111580 A EP 82111580A EP 82111580 A EP82111580 A EP 82111580A EP 0081842 A2 EP0081842 A2 EP 0081842A2
Authority
EP
European Patent Office
Prior art keywords
choke
core
housing part
core package
ribs
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
Application number
EP82111580A
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German (de)
French (fr)
Other versions
EP0081842A3 (en
EP0081842B1 (en
Inventor
Robert Ing. Grad. Tschuk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAY AND CHRISTE GmbH TRANSFORMATORENWERKE
Original Assignee
MAY AND CHRISTE GmbH TRANSFORMATORENWERKE
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Filing date
Publication date
Application filed by MAY AND CHRISTE GmbH TRANSFORMATORENWERKE filed Critical MAY AND CHRISTE GmbH TRANSFORMATORENWERKE
Publication of EP0081842A2 publication Critical patent/EP0081842A2/en
Publication of EP0081842A3 publication Critical patent/EP0081842A3/en
Application granted granted Critical
Publication of EP0081842B1 publication Critical patent/EP0081842B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/326—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures specifically adapted for discharge lamp ballasts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Definitions

  • the invention relates to a choke or a transformer in a jacket construction and with a core package layered in the choke or transformer longitudinal direction, in particular for use as a ballast for gas discharge lamps, the core package being seated on a mounting plate, with a core placed on the core and insulated from it, self-supporting wound coil, the winding heads of which protrude from the end of the core package and are covered by insulating parts with at least one end wall and at least one part projecting between the core package and winding heads together with the mounting plate.
  • Such a choke is known for example from DE-C-22 44 158.
  • the touch-proof covering of the winding heads is carried out there by means of the insulating material parts placed on the winding heads in the form of insulating material housings, which cover the winding heads of the coil by means of a rear wall, an end wall and three walls on the circumference and are accordingly constructed in a material-consuming and complicated manner.
  • a choke coil is also known, which sits on a mounting plate and is covered overall by a box-shaped housing part.
  • the invention has for its object to provide a choke or a transformer of the type described in the opening paragraph, which can be produced with the least possible expenditure of core, copper and insulating material.
  • a U-shaped housing part is placed on the core package, which projects beyond the core package on both sides by at least approximately the end protrusions, and that the insulating parts are arranged on both end faces of the U-shaped housing part, the winding heads together with the
  • the mounting plate and the U-shaped housing part are made of plastic parts that are safe to touch and that consist of an end wall on the front side of the U-shaped housing part and two L-shaped ones that are attached to the top edge and protrude at least above the height of the coil into the space between the coil and core package Ribs exist, which in turn have an outer distance approximately equal to the core width and a transverse web connecting their free ends.
  • the U-shaped through across both end faces of the core p aketes superior housing part is greatly improved heat removal from the reactor, so that the layer height of the core packet and the copper requirement of the coil is reduced accordingly.
  • the U-shaped housing part covers the winding heads in a touch-proof manner on the circumference, while the end wall of the plastic part provides the end cover.
  • the ribs arranged according to the invention on the plastic parts ensure the fixing of the self-supporting wound coil, which is relaxed after winding, with respect to the core and longitudinal fixing of the end walls with respect to the core package.
  • the plastic parts can be easily manufactured with minimal material expenditure, without their ease of assembly being impaired in the automatic production.
  • the end wall of the plastic part expediently has a recess on its upper side, into which a corresponding projection of the U-shaped housing part engages. In this way, a simple fixation between the housing part and the plastic parts can be achieved.
  • the ends of the ribs expediently protrude beyond the coil into the end stop with the I sheets and This makes it easier to put the E core package with the coil on the core onto the I package.
  • the ends of the ribs are advantageously bevelled to facilitate the automatic insertion of the ribs between the winding heads and the core package.
  • An additional transverse web can be provided between the ribs in order to improve the stability of the position of the ribs relative to one another.
  • the end wall of the plastic part advantageously has a U- shaped rib on its inside, which is overlapped by the U-shaped housing part. This contributes to the additional fixation of the end wall in relation to the U-shaped housing part and to ensuring the touch-proof cover even with a very small thickness of the end wall.
  • FIGs 1 and 2 a preferred embodiment of the throttle according to the invention is shown in perspective and in an exploded view.
  • the throttle is Antel construction in M and having a layered throttle in the longitudinal direction K ernvers with EI-laminations formed.
  • the I- sheets 1 sit on a mounting plate 2.
  • the E-sheets 3 are placed on the I-sheets 1.
  • the core of the core package 4 carries a self-supporting coil, insulated from the core, the winding heads 5 of which protrude from the end of the core package 4.
  • a U - shaped housing part 6 is placed on the core package 4, which projects over the core package on both sides by approximately the protrusions of the winding heads 5.
  • Plastic parts 7 are arranged on both end faces of the U-shaped housing part 6, which cover the winding overhangs 5 together with the mounting plate 2 and the U-shaped housing part 6 so that they are safe to touch.
  • the plastic parts 7 are expediently injection molded parts. They each consist of an end wall 8 and two L-shaped ribs 9 attached to the upper edge of the end wall 8. The ribs 9 protrude at least above the height of the coil into the space between the winding head 5 and the core package 4.
  • the outer spacing of the ribs 9 is about equal to the core width.
  • the ribs 9 have a transverse web 10 connecting their free ends, which serves in particular for the stability of the ribs 9.
  • On the mounting plate 2, a clamp 11 is further placed for connecting the ends of the coil.
  • the end wall 8 has on its upper side a recess 12 into which a corresponding projection 13 of the U-shaped housing part 6 engages. It can also be seen that the ends of the ribs 9 project beyond the coil into the end stop with the I-plates 1. This makes it easier to fix the core in relation to the I-plates during assembly. The ends of the ribs 9 are chamfered, which facilitates the insertion of the ribs between the core package 4 and the winding head 5. Finally, a U-shaped rib 14 is provided on the inside of the end wall 8, which is overlapped by the U-shaped housing part 6. The U-shaped housing 6 is expediently connected to the mounting plate 2 by spot welding.
  • FIGS. 3 to 7 show two embodiments of the plastic parts 7.
  • an undulating stiffened end wall 8 is provided, while the plastic part according to FIGS. 5 to 7 is smooth Has plastic wall 8.
  • Fig. 6 also shows that an additional transverse web 15 can be provided between the ribs 9 for reasons of stability. Otherwise, the plastic part 7 shown in FIGS. 5 to 7 essentially corresponds to the plastic part shown in FIGS. 1 and 2.

Abstract

1. Choke or transformer in sleeve construction, in particular for use as a ballast for gas discharge lamps, comprising a core package laminated in the longitudinal direction of the choke or transformer, which package is seated on a mounting plate (2), comprising a self-supporting wound coil mounted on the core and insulated from this, the winding heads of which extend beyond the core package at both ends and which are each covered for safety of contact by a respective insulation material part (7) having an extension engaging behind the winding heads from above in cooperation with the mounting plate (2), the extension extending at least beyond the height of the coil in the intermediate space between the coil and the core package (4), characterised in that the insulating material parts (7) are plate-shaped and the extension of each insulating material part (7) engaging behind the winding heads consists of two L-shaped ribs (9) provided on the upper edge of the insulating material part (7) the outer lateral spacing of which ribs being approximated to the winding head inner diameter, in that the ribs (9) have a cross-member (10) connecting their free ends and in that on the core package (4) is mounted a U-shaped housing part (6) extending beyond both ends of the winding head projection and overlapping the upper edge of the insulating material parts (7) arranged on both ends.

Description

Die Erfindung bezieht sich auf eine Drossel oder einen Transformator in Mantelbauweise und mit in Drossel- bzw. Transformatorlängsrichtung geschichtetem Kernpaket, insbesondere zur Verwendung als Vorschaltgerät für Gasentladungslampen, wobei das Kernpaket auf einer Montageplatte sitzt, mit einer auf den Kern aufgesetzten, gegenüber diesem isolierten, freitragend gewickelten Spule, deren Wickelköpfe das Kernpaket stirnseitig überragen und durch Isolierstoffteile mit wenigstens einer Stirnwand und wenigstens einem zwischen Kernpaket und Wickelköpfe ragenden Teil zusammen mit der Montageplatte.berührungssicher abgedeckt sind.The invention relates to a choke or a transformer in a jacket construction and with a core package layered in the choke or transformer longitudinal direction, in particular for use as a ballast for gas discharge lamps, the core package being seated on a mounting plate, with a core placed on the core and insulated from it, self-supporting wound coil, the winding heads of which protrude from the end of the core package and are covered by insulating parts with at least one end wall and at least one part projecting between the core package and winding heads together with the mounting plate.

Eine derartige Drossel ist beispielsweise durch die DE-C-22 44 158 bekannt geworden. Die berührungssichere Abdeckung der Wickelköpfe erfolgt dort mittels der auf die Wickelköpfe aufgesetzten Isolierstoffteile in Form von Isolier- stoffgehäusen,welche die Wickelköpfe der Spule mittels einer Rückwand, einer Stirnwand und drei Wänden am Umfang abdecken und dementsprechend materialaufwendig und kompliziert ausgebildet sind.Such a choke is known for example from DE-C-22 44 158. The touch-proof covering of the winding heads is carried out there by means of the insulating material parts placed on the winding heads in the form of insulating material housings, which cover the winding heads of the coil by means of a rear wall, an end wall and three walls on the circumference and are accordingly constructed in a material-consuming and complicated manner.

Durch die DE-A- 21 01 458 ist weiter eine Drosselspule bekannt geworden, die auf einer Montageplatte sitzt und insgesamt durch ein kastenförmiges Gehäuseteil abgedeckt ist.From DE-A-21 01 458 a choke coil is also known, which sits on a mounting plate and is covered overall by a box-shaped housing part.

Der Erfindung liegt die Aufgabe zugrunde, eine Drossel oder einen Transformator der eingangs beschriebenen Art zu schaffen, die bzw. der mit möglichst geringem Aufwand an Kern-, Kupfer- und Isoliermaterial herstellbar ist.The invention has for its object to provide a choke or a transformer of the type described in the opening paragraph, which can be produced with the least possible expenditure of core, copper and insulating material.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß auf das Kernpaket ein U-förmiges Gehäuseteil aufgesetzt ist, das das Kernpaket beidseitig um wenigstens etwa die Wickelkopfausladungen überragt, und daß die Isolierstoffteile aus an beiden Stirnseiten des U-förmigen Gehäuseteils angeordneten,die Wickelköpfe zusammen mit der Montageplatte und dem U-förmigen Gehäuseteil berührungssicher abdeckenden Kunststoffteilen bestehen, die aus einer Stirnwand an der Stirnseite des U-förmigen Gehäuseteils und aus zwei L-förmigen, an deren Oberkante angesetzten und wenigstens über die Höhe der Spule in den Zwischenraum zwischen Spule und Kernpaket ragenden Rippen bestehen, welche ihrerseits einen Außenabstand etwa gleich der Kernbreite und einen ihre freien Enden verbindenden Quersteg aufweisen.This object is achieved in that a U-shaped housing part is placed on the core package, which projects beyond the core package on both sides by at least approximately the end protrusions, and that the insulating parts are arranged on both end faces of the U-shaped housing part, the winding heads together with the The mounting plate and the U-shaped housing part are made of plastic parts that are safe to touch and that consist of an end wall on the front side of the U-shaped housing part and two L-shaped ones that are attached to the top edge and protrude at least above the height of the coil into the space between the coil and core package Ribs exist, which in turn have an outer distance approximately equal to the core width and a transverse web connecting their free ends.

Durch das über beide Stirnseiten des Kernpaketes überragende U-förmige Gehäuseteil wird die Wärmeabführung aus der Drossel erheblich verbessert, wodurch die Schichthöhe des Kernpakets und dementsprechend der Kupferbedarf der Spule verringert wird. Gleichzeitig überdeckt das U-förmige Gehäuseteil die Wickelköpfe berührungssicher am Umfang, während die Stirnwand des Kunststoffteils für die stirnseitige Abdeckung sorgt. Die erfindungsgemäß an den Kunststoffteilen angeordneten Rippen sorgen für die Fixierung der freitragend gewickelten, nach dem Wickeln entspannten Spule gegenüber dem Kern und Längsfixierung der Stirnwände gegenüber dem Kernpaket. Die Kunststoffteile sind mit minimalem Materialaufwand einfach herstellbar, ohne daß ihre Montagefreundlichkeit bei der automatischen Fertigung beeinträchtigt wird.U-shaped through across both end faces of the core p aketes superior housing part is greatly improved heat removal from the reactor, so that the layer height of the core packet and the copper requirement of the coil is reduced accordingly. At the same time, the U-shaped housing part covers the winding heads in a touch-proof manner on the circumference, while the end wall of the plastic part provides the end cover. The ribs arranged according to the invention on the plastic parts ensure the fixing of the self-supporting wound coil, which is relaxed after winding, with respect to the core and longitudinal fixing of the end walls with respect to the core package. The plastic parts can be easily manufactured with minimal material expenditure, without their ease of assembly being impaired in the automatic production.

Durch die Kombination des U-förmigen Gehäuseteils mit den Stirnwänden aus- Kunststoff ergibt sich auch eine wesentlich verbesserte mechanische Festigkeit des Schutzes gegen zufällige Berührung, da die Beschädigungsgefahr bei mechanischer Beanspruchung verglichen mit einem den Wickelkopf allseitig umgebenden Isolierstoffgehäuse erheblich verringert ist.The combination of the U-shaped housing part with the end walls made of plastic also results in a significantly improved mechanical strength of the protection against accidental contact, since the risk of damage under mechanical stress is considerably reduced compared to an insulating material housing surrounding the winding head on all sides.

Die Stirnwand des Kunststoffteils weist zweckmäßig an ihrer Oberseite eine Ausnehmung auf, in welche ein entsprechender Vorsprung des U-förmigen Gehäuseteils eingreift. Hierdurch läßt sich eine einfache Fixierung zwischen dem Gehäuseteil und den Kunststoffteilen erzielen.The end wall of the plastic part expediently has a recess on its upper side, into which a corresponding projection of the U-shaped housing part engages. In this way, a simple fixation between the housing part and the plastic parts can be achieved.

Bei der für die erfindungsgemäße Drossel besonders vorteilhaften Verwendung eines EI-Blechschnitts für das Kernpaket mit in der Montageschiene sitzenden I-Blechen und im Gehäuseteil sitzenden E-Blechen ragen die Enden der Rippen zweckmäßig über die Spule hinaus in stirnseitigen Anschlag mit den I-Blechen und erleichtern so das Aufsetzen des E-Kernpakets mit auf den Kern aufgesetzter Spule auf das I-Paket.In the case of the use of an EI sheet metal cut for the core package with I sheets in the mounting rail and E sheets in the housing part, which is particularly advantageous for the choke according to the invention, the ends of the ribs expediently protrude beyond the coil into the end stop with the I sheets and This makes it easier to put the E core package with the coil on the core onto the I package.

Die Enden der Rippen sind vorteilhaft angeschrägt, um das automatische Einführen der Rippen zwischen Wickelköpfe und Kernpaket zu erleichtern.The ends of the ribs are advantageously bevelled to facilitate the automatic insertion of the ribs between the winding heads and the core package.

Zwischen den Rippen kann ein zusätzlicher Quersteg vorgesehen sein, um die Stabilität der Lage der Rippen zueinander zu verbessern.An additional transverse web can be provided between the ribs in order to improve the stability of the position of the ribs relative to one another.

Weiter weist die Stirnwand des Kunststoffteils auf ihrer Innenseite vorteilhaft eine U-förmige Rippe auf, welche von dem U-förmigen Gehäuseteil übergriffen ist. Dies trägt zur zusätzlichen Fixierung der Stirnwand gegenüber dem U-förmigen Gehäuseteil und zur Sicherstellung der berührungssicheren Abdeckung selbst bei sehr geringer Dicke der Stirnwand bei.Furthermore, the end wall of the plastic part advantageously has a U- shaped rib on its inside, which is overlapped by the U-shaped housing part. This contributes to the additional fixation of the end wall in relation to the U-shaped housing part and to ensuring the touch-proof cover even with a very small thickness of the end wall.

Um die Dicke der Stirnwand weiter verringern zu können, kann diese mit wellenförmigen Versteifungen ausgebildet werden.In order to be able to further reduce the thickness of the end wall, it can be designed with undulating stiffeners.

Die Erfindung ist im folgenden an AuSführungsbeispielen und anhand der Zeichnungen näher erläutert. In den Zeichnungen zeigen

  • Fig. 1 eine perspektivische Ansicht einer fertig'montierten erfindungsgemäßen Drossel,
  • Fig. 2 eine Teilansicht der Drossel nach Figur 1 in auseinandergezogener Darstellung,
  • Fig. 3 eine Ansicht eines Kunststoffteils mit wellenförmig versteifter Stirnwand von unten,
  • Fig 4 eine Stirnansicht des Kunststoffteils nach .Figur 3,
  • Fig. 5 eine Stirnansicht eines Kunststoffteils mit glatter Stirnwand,
  • Fig. 6 eine Schnittansicht des Kunststoffteils nach Figur 5, geschnitten längs der Linie VI-VI in Figur 5, und
  • Fig. 7 eine Ansicht des Kunststoffteils nach Figur 5 von unten.
The invention is explained in more detail below using exemplary embodiments and with reference to the drawings. Show in the drawings
  • 1 is a perspective view of a fully assembled throttle according to the invention,
  • 2 is a partial view of the throttle of Figure 1 in an exploded view,
  • 3 is a view of a plastic part with a wavy stiffened end wall from below,
  • 4 shows an end view of the plastic part according to FIG. 3,
  • 5 is an end view of a plastic part with a smooth end wall,
  • Fig. 6 is a sectional view of the plastic part of Figure 5, taken along the line VI-VI in Figure 5, and
  • Fig. 7 is a view of the plastic part of Figure 5 from below.

In den Figuren 1 und 2 ist ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen Drossel in perspektivischer und in auseinandergezogener Darstellung gezeigt. Die Drossel ist in Mantelbauweise und mit in Drossellängsrichtung geschichtetem Kernpaket mit EI-Blechschnitten ausgebildet. Die I-Bleche 1 sitzen auf einer Montageplatte 2. Auf die I-Bleche 1 sind die E-Bleche 3 aufgesetzt. Der Kern des Kernpakets 4 trägt eine freitragend gewickelte, gegenüber dem Kern isolierte Spule, deren Wickelköpfe 5 das Kernpaket 4 stirnseitig überragen.In Figures 1 and 2, a preferred embodiment of the throttle according to the invention is shown in perspective and in an exploded view. The throttle is Antel construction in M and having a layered throttle in the longitudinal direction K ernpaket with EI-laminations formed. The I- sheets 1 sit on a mounting plate 2. The E-sheets 3 are placed on the I-sheets 1. The core of the core package 4 carries a self-supporting coil, insulated from the core, the winding heads 5 of which protrude from the end of the core package 4.

Auf das Kernpaket 4 ist ein U-förmiges Gehäuseteil 6 aufgesetzt, das das Kernpaket beidseitig um etwa die Ausladungen der Wickelköpfe 5 überragt. An beiden Stirnseiten des U-förmigen Gehäuseteils 6 sind Kunststoffteile 7 angeordnet, die die Wickelköpfe 5 zusammen mit der Montageplatte 2 und dem U-förmigen Gehäuseteil 6 berührungssicher abdecken. Die Kunststoffteile 7 sind zweckmäßig Spritzgußteile. Sie bestehen jeweils aus einer Stirnwand 8 und aus zwei L-förmigen, an der Oberkante der Stirnwand 8 angesetzten Rippen 9. Die Rippen 9 ragen wenigstens über die Höhe der Spule in den Zwischenraum zwischen Wickelkopf 5 und Kernpaket 4. Der Außenabstand der Rippen 9 ist etwa gleich der Kernbreite. An ihren freien Enden weisen die Rippen 9 einen ihre freien Enden verbindenden Quersteg 10 auf, welcher insbesondere der Stabilität der Rippen 9 dient. Auf die Montageplatte 2 ist weiter eine Klemme 11 für den Anschluß der Enden der Spule aufgesetzt.A U - shaped housing part 6 is placed on the core package 4, which projects over the core package on both sides by approximately the protrusions of the winding heads 5. Plastic parts 7 are arranged on both end faces of the U-shaped housing part 6, which cover the winding overhangs 5 together with the mounting plate 2 and the U-shaped housing part 6 so that they are safe to touch. The plastic parts 7 are expediently injection molded parts. They each consist of an end wall 8 and two L-shaped ribs 9 attached to the upper edge of the end wall 8. The ribs 9 protrude at least above the height of the coil into the space between the winding head 5 and the core package 4. The outer spacing of the ribs 9 is about equal to the core width. At their free ends, the ribs 9 have a transverse web 10 connecting their free ends, which serves in particular for the stability of the ribs 9. On the mounting plate 2, a clamp 11 is further placed for connecting the ends of the coil.

Die Stirnwand 8 weist an ihrer Oberseite eine Ausnehmung 12 auf, in welche ein entsprechender Vorsprung 13 des U-förmigen Gehäuseteils 6 eingreift. Weiter ist zu erkennen, daß die Enden der Rippen 9 über die Spule hinaus in stirnseitigen Anschlag mit den I-Blechen 1 ragen. Dies erleichtert die Fixierung des Kerns in bezug auf die I-Bleche bei der Montage. Die Enden der Rippen 9 sind angeschrägt, wodurch das Einführen der Rippen zwischen Kernpaket 4 und Wickelkopf 5 erleichtert wird. Schließlich ist auf der Innenseite der Stirnwand 8 eine U-förmige Rippe 14 vorgesehen, welche von dem U-förmigen Gehäuseteil 6 übergriffen ist. Das U-förmige Gehäuse 6 ist zweckmäßig durch Punktschweißen mit der Montageplatte 2 verbunden.The end wall 8 has on its upper side a recess 12 into which a corresponding projection 13 of the U-shaped housing part 6 engages. It can also be seen that the ends of the ribs 9 project beyond the coil into the end stop with the I-plates 1. This makes it easier to fix the core in relation to the I-plates during assembly. The ends of the ribs 9 are chamfered, which facilitates the insertion of the ribs between the core package 4 and the winding head 5. Finally, a U-shaped rib 14 is provided on the inside of the end wall 8, which is overlapped by the U-shaped housing part 6. The U-shaped housing 6 is expediently connected to the mounting plate 2 by spot welding.

Die Figuren 3 bis 7 zeigen zwei Ausführungsformen der Kunststoffteile 7. Dabei ist bei dem Kunststoffteil nach Fig. 3 und 4 eine wellenförmig versteifte Stirnwand 8 vorgesehen, während das Kunststoffteil nach den Fig. 5 bis 7 eine glatte Kunststoffwand 8 aufweist. Fig. 6 zeigt auch, daß zwischen den Rippen 9 aus Stabilitätsgründen ein zusätzlicher Quersteg 15 vorgesehen sein kann. Im übrigen entspricht das in den Fig. 5 bis 7 dargestellte Kunststoffteil 7 im wesentlichen dem in den Fig. 1 und 2 dargestellten Kunststoffteil.FIGS. 3 to 7 show two embodiments of the plastic parts 7. In the plastic part according to FIGS. 3 and 4, an undulating stiffened end wall 8 is provided, while the plastic part according to FIGS. 5 to 7 is smooth Has plastic wall 8. Fig. 6 also shows that an additional transverse web 15 can be provided between the ribs 9 for reasons of stability. Otherwise, the plastic part 7 shown in FIGS. 5 to 7 essentially corresponds to the plastic part shown in FIGS. 1 and 2.

Claims (7)

1. Drossel oder Transformator in Mantelbauweise und mit in Drossel- bzw. Transformatorlängsrichtung geschichtetem Kernpaket, insbesondere zur Verwendung als Vorschaltgerät für Gasentladungslampen, wobei das Kernpaket auf einer Montageplatte sitzt, mit einer auf den Kern aufgesetzten,gegenüber diesem isolierten, freitragend gewickelten Spule, deren Wickelköpfe das Kernpaket stirnseitig überragen und durch Isolierstoffteile mit wenigstens einer Stirnwand und wenigstens einem zwischen Kernpaket und Wickelköpfe ragenden Teil zusammen mit der Montageplatte berührungssicher abgedeckt sind, dadurch gekennzeichnet , daß auf das Kernpaket (4) ein U-förmiges Gehäuseteil (6) aufgesetzt ist, das das Kernpaket (4) beidseitig um wenigstens etwa die Wickelkopfausladungen überragt, und daß die Isolierstoffteile aus an beiden Stirnseiten des U-förmigen Gehäuseteils (6) angeordneten, die Wickelköpfe (5) zusammen mit der Montageplatte (2) und dem U-förmigen Gehäuseteil (6) berührungssicher abdeckenden Kunststoffteilen (7) bestehen, die aus einer Stirnwand (8) an der Stirnseite des U-förmigen Gehäuseteils (6) und aus zwei L-förmigen, an deren Oberkante angesetzten und wenigstens über die Höhe der Spule in den Zwischenraum zwischen Spule und Kernpaket (4) ragenden Rippen (9) bestehen, welche ihrerseits einen Außenabstand etwa gleich der Kernbreite und einen ihre freien Enden verbindenden Quersteg (10) aufweisen.1. Choke or transformer in jacket design and with a core package layered in the choke or transformer longitudinal direction, in particular for use as a ballast for gas discharge lamps, the core package being seated on a mounting plate, with a self-supporting coil which is placed on the core and insulated from the core Winding heads protrude from the end of the core package and are covered with insulating parts with at least one end wall and at least one part protruding between the core package and winding heads together with the mounting plate, characterized in that a U-shaped housing part (6) is placed on the core package (4), that protrudes the core package (4) on both sides by at least approximately the end overhangs, and that the insulating parts are arranged on both end faces of the U-shaped housing part (6), the end windings (5) together with the mounting plate (2) and the U-shaped housing part (6) made of plastic parts (7) covering in a touch-proof manner, which consist of an end wall (8) on the front side of the U-shaped housing part (6) and two L-shaped ones, attached to the upper edge and at least over the height of the Ribs (9) projecting into the space between the coil and core package (4), which in turn have an outer spacing approximately equal to the core width and a transverse web (10) connecting their free ends. 2. Drossel oder Transformator nach Anspruch 1, dadurch gekennzeichnet, daß die Stirnwand (8) an ihrer Oberseite eine Ausnehmung (12) aufweist, in welche ein entsprechender Vorsprung (13) des U-förmigen Gehäuseteils (6) eingreift.2. Choke or transformer according to claim 1, characterized in that the end wall (8) has on its upper side a recess (12) into which a corresponding projection (13) of the U-shaped housing part (6) engages. 3. Drossel oder Transformator nach Anspruch 1 oder 2, mit in der Montageschiene sitzenden I-Blechen und im Gehäuseteil sitzenden E-Blechen,
dadurch gekennzeichnet ,
daß die Enden der Rippen (9) über die Spule hinaus in stirnseitigen Anschlag mit den I-Blechen (1) ragen.3. Choke or transformer according to claim 1 or 2, with I-plates seated in the mounting rail and E-plates seated in the housing part,
characterized ,
that the ends of the ribs (9) protrude beyond the coil into the end stop with the I-plates (1). 4. Drossel oder Transformator nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Enden der Rippen (9) angeschrägt sind.4. choke or transformer according to one of claims 1 to 3,
characterized,
that the ends of the ribs (9) are chamfered. 5. Drossel oder Transformator nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet ,
daß ein zusätzlicher Quersteg (15) zwischen den Rippen (9) vorgesehen ist.5. choke or transformer according to one of claims 1 to 4,
characterized ,
that an additional crossbar (15) is provided between the ribs (9). 6. Drossel oder Transformator nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet
daß die Stirnwand (8) auf ihrer Innenseite eine U-förmige Rippe (14) aufweist, welche von dem U-förmigen Gehäuseteil (6) übergriffen ist.6. choke or transformer according to one of claims 1 to 5,
characterized
that the end wall (8) has on its inside a U-shaped rib (14) which is overlapped by the U-shaped housing part (6). 7. Drossel oder Transformator nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet ,
daß die Stirnwand (8) wellenförmige Versteifungen aufweist.7. choke or transformer according to one of claims 1 to 6,
characterized ,
that the end wall (8) has wavy stiffeners.
EP19820111580 1981-12-16 1982-12-14 Inductance or transformer Expired EP0081842B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813149853 DE3149853C1 (en) 1981-12-16 1981-12-16 Inductance or transformer with plastic moulded end covers
DE3149853 1981-12-16

Publications (3)

Publication Number Publication Date
EP0081842A2 true EP0081842A2 (en) 1983-06-22
EP0081842A3 EP0081842A3 (en) 1983-07-20
EP0081842B1 EP0081842B1 (en) 1986-03-26

Family

ID=6148907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820111580 Expired EP0081842B1 (en) 1981-12-16 1982-12-14 Inductance or transformer

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EP (1) EP0081842B1 (en)
DE (1) DE3149853C1 (en)
GR (1) GR82296B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562469A1 (en) * 1992-03-26 1993-09-29 Knobel Ag Lichttechnische Komponenten Low power capacity transformer insulated for direct contact

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544543B1 (en) * 1983-04-15 1985-06-14 Thomson Csf VHF POWER TRANSFORMER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1407092A (en) * 1964-04-06 1965-07-30 Bobinage Pour L Ind Et La Radi Method of assembling magnetic circuits for transformers, salts or other static or rotating electrical devices
DE2103112A1 (en) * 1970-02-18 1971-08-26 Philips Nv transformer
FR2154764A1 (en) * 1971-09-29 1973-05-11 Plathner Ernst Dipl Ing
DE2244158A1 (en) * 1972-09-08 1974-03-14 Schwabe H Fa REACTOR OR TRANSFORMER, IN PARTICULAR AS A CONTROL UNIT FOR GAS DISCHARGE LAMPS
DE2352301A1 (en) * 1972-10-24 1974-05-02 Zumtobel Kg TRANSFORMER OR REACTOR
DE3048492A1 (en) * 1980-01-07 1981-09-17 Kombinat Veb Narva, Ddr 1017 Berlin Coil winding head insulation for inductors - has flange with aperture and ribs coupled releasably to shell shaped cover cap

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH391876A (en) * 1961-11-09 1965-05-15 Leuenberger H Iron core arrangement in choke coil or transformer
YU33139B (en) * 1970-02-02 1976-04-30 Elektrokovina Tovarna Elektrok Dusilaka z brezvijacno sponko

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1407092A (en) * 1964-04-06 1965-07-30 Bobinage Pour L Ind Et La Radi Method of assembling magnetic circuits for transformers, salts or other static or rotating electrical devices
DE2103112A1 (en) * 1970-02-18 1971-08-26 Philips Nv transformer
FR2154764A1 (en) * 1971-09-29 1973-05-11 Plathner Ernst Dipl Ing
DE2244158A1 (en) * 1972-09-08 1974-03-14 Schwabe H Fa REACTOR OR TRANSFORMER, IN PARTICULAR AS A CONTROL UNIT FOR GAS DISCHARGE LAMPS
DE2352301A1 (en) * 1972-10-24 1974-05-02 Zumtobel Kg TRANSFORMER OR REACTOR
DE3048492A1 (en) * 1980-01-07 1981-09-17 Kombinat Veb Narva, Ddr 1017 Berlin Coil winding head insulation for inductors - has flange with aperture and ribs coupled releasably to shell shaped cover cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562469A1 (en) * 1992-03-26 1993-09-29 Knobel Ag Lichttechnische Komponenten Low power capacity transformer insulated for direct contact

Also Published As

Publication number Publication date
EP0081842A3 (en) 1983-07-20
EP0081842B1 (en) 1986-03-26
GR82296B (en) 1984-12-13
DE3149853C1 (en) 1983-04-07

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