EP0405209A2 - Saddle coil arrangement for a cathode ray tube and a coil support for such an arrangement - Google Patents

Saddle coil arrangement for a cathode ray tube and a coil support for such an arrangement Download PDF

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Publication number
EP0405209A2
EP0405209A2 EP90110983A EP90110983A EP0405209A2 EP 0405209 A2 EP0405209 A2 EP 0405209A2 EP 90110983 A EP90110983 A EP 90110983A EP 90110983 A EP90110983 A EP 90110983A EP 0405209 A2 EP0405209 A2 EP 0405209A2
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EP
European Patent Office
Prior art keywords
grooves
coil
coil carrier
arrangement
saddle
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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
EP90110983A
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German (de)
French (fr)
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EP0405209A3 (en
EP0405209B1 (en
Inventor
Andreas Dr. Ehrhardt
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Nokia Deutschland GmbH
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Nokia Unterhaltungselektronik Deutschland GmbH
Nokia Deutschland GmbH
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70Arrangements for deflecting ray or beam
    • H01J29/72Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76Deflecting by magnetic fields only
    • H01J29/762Deflecting by magnetic fields only using saddle coils or printed windings

Definitions

  • the invention relates to a saddle coil assembly for a cathode ray tube, i. H. a saddle coil assembly with a funnel-shaped coil support made of insulating material, which carries two saddle coil windings.
  • the coil former usually consists of two coil former halves. More specifically, the invention relates to such coil carrier halves and a saddle coil arrangement which has two coil carrier halves, each with a winding.
  • These saddle coil arrangements are used for the horizontal deflection of the electron beams in a cathode ray tube.
  • the cathode ray tube is one with a plurality of electronically controllable electron beams, that is to say typically a color picture tube.
  • the invention can also be used with monochrome tubes.
  • Saddle coil arrangements with a bobbin and two individual windings are produced in two fundamentally different ways.
  • the individual windings are wound on a special shape, then baked and finally attached to the holder.
  • each individual winding is wound directly onto one coil carrier half and the two wound coil carrier halves are put together to form the saddle coil arrangement.
  • Coil carrier halves for arrangements constructed in this way have the following guide parts for the winding for receiving the saddle coil winding: a front channel on the front, further circumference of the funnel-shaped half, - a back channel on the rear, narrower circumference of half, - a plurality of left grooves connecting the two channels near the left ends thereof, and - Several right grooves that connect the two channels near their right ends, and which are angularly symmetrical to the left grooves.
  • Fig. 5A As the wire, due to the winding technology and for reasons of space, is laid differently and pulled differently at different points when producing a winding, asymmetrical windings result, which lead to aberrations. These aberrations are very exaggerated in Fig. 5A. 5A it is assumed that three hot-horizontal white lines are to be displayed on a screen 10, namely one in the middle and one at the bottom and top of the screen. Each white line consists of a red line r, a green line g and a blue line Line b together. Ideally, these lines should lie one above the other across the entire width of the screen. With conventional saddle coil arrangements, with windings wound directly on a bobbin, however, the systematic aberrations according to FIG. 5A result. The upper and lower three colored single lines are spread apart towards one side. In addition, these lines are all twisted with respect to the horizontal. The middle white line is split into the three colored single lines near the side edges (twist).
  • the invention thus follows a path that is completely contrary to the previous efforts: While these were aimed at, the best possible symmetry in the coil carrier and in To achieve winding process, the symmetry of the coil carrier halves is deliberately disturbed in the invention. Each winding is applied so that it extends to the extension point of a slot in the slot.
  • the asymmetrical coil carrier formation essentially compensates for asymmetries which arise during the winding process in that windings are inserted in one slot in a first direction, while they are inserted in the angularly symmetrically assigned other slots in the opposite direction.
  • Grooves are preferably lengthened by moving the rear front channel walls further forward than corresponds to the position of the front channel walls on the unextended grooves.
  • FIGS. 1-4 show a coil carrier half 11 of a coil carrier for a saddle coil arrangement for a cathode ray tube.
  • the entire saddle coil assembly consists of two such coil carrier halves, each of which carries a saddle coil winding.
  • a single turn 12 of such a winding is shown in dashed lines in FIGS. 1-4.
  • the overall structure of a winding corresponds to the conventional structure as explained at the beginning.
  • the coil support half 11 is funnel-shaped, with a front groove 13 on the front, further circumference of the coil support half, and a rear groove 14 on the rear, narrower circumference.
  • the front gutter 13 is delimited by a front front gutter wall 15.v and a rear front gutter wall 15.h.
  • the rear gutter 14 is delimited by a front gutter wall 16.v and a rear gutter wall 16.h.
  • Slits 17.13 are present in the rear front channel wall 15.h, and the front rear channel wall 16.v has corresponding slots 17.14. Grooves open into the channels at the locations of these slots. There are 5 left grooves 18.1l - 18.5l and 5 right grooves 18.1r - 18.5r.
  • the winding 12 shown in the figures runs counterclockwise in the rear channel 14 when half is viewed from the front, then enters the third left groove 18.3l through a slot 17.14 and passes through a slot 17.13 into the front channel 13, in which it is in the Clockwise is to the slot into which the third right groove 18.3r opens. Via this groove and the associated slot 17.14 in the front gutter wall 16.v, the wire reaches the gutter 14 again and thus to the starting point.
  • the rear front channel wall 15 lies at the horizontal end of the bobbin half 11.
  • This gradation as such is known from the prior art.
  • the step height at the location of the left slots 18.2l - 18.5l is greater than at the location of the right slots 18.2r - 18.5r.
  • the left grooves mentioned are longer than the associated right grooves mentioned. Only the first grooves on the left and right, i.e. the grooves 18.1l and 18.1r, are of the same length.
  • the front rear gutter wall 16.v is increasingly stepped to the rear.
  • the front gutter wall 16.v runs on the left side without steps.
  • the downgrading on the right-hand side means that the extensions which were achieved for the left grooves 18.4l and 18.5l compared to the corresponding right grooves by the different gradations in the rear front gutter wall 15.v are partially, but not completely removed . This is because the gradation differences in the rear front gutter wall 15.h are greater than the gradation differences in the front rear gutter wall 16.v.
  • the gradation difference for the respectively assigned grooves on the left and right on the rear front gutter wall was 1 mm, while it was only 0.5 mm for the front rear gutter wall.
  • the four grooves 18.2l - 18.5l are each extended at the location of the rear front channel wall 15.v compared to the corresponding right grooves 18.2r - 18.5r. But there is also an extension for the right grooves 18.4r and 18.5r, but not on the side of the rear front channels wall 15.h, but on the side of the front gutter wall 16.v. Windings are introduced into a coil carrier half formed in this way, as explained above with reference to the winding 12, namely in each case towards the extension point.
  • Saddle coil arrangements with coil carrier halves according to FIGS. 1-4 can be used with all types of cathode ray tubes. Depending on the intended use, it depends on whether all grooves are to be extended or only a few, and whether extensions are required both at the front and at the rear. It has been found in practice that the greatest effects are achieved by extensions at the front. The number of grooves used and the number of turns introduced also depend on the intended use.
  • the length of at least one right groove is different from the length of the angularly symmetrically assigned left groove. It is essential for saddle coil arrangements with such coil carriers that the windings are applied in such a way that they run in the groove towards the extension point of a slot.

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  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Handcart (AREA)

Abstract

Eine Spulenträgerhälfte (11) für eine Sattelspulenanordnung für eine Kathodenstrahlröhre verfügt zum Aufnehmen einer Sattelspu­lenwicklung über eine Vorderrinne (13), eine Hinterrinne (14) sowie über linke Nuten (18.1l - 18.5l) und rechte Nuten. Die linken Nuten sind gegenüber den rechten Nuten dadurch verlän­gert, daß in der hinteren Vorderrinnenwand (15.h) an den Mün­dungsorten der linken Nuten stärkere Stufen nach vorne vorhan­den sind als an den Mündungsorten der rechten Nuten.A coil carrier half (11) for a saddle coil arrangement for a cathode ray tube has a front channel (13), a rear channel (14) as well as left slots (18.1l - 18.5l) and right slots for receiving a saddle coil winding. The left-hand grooves are elongated compared to the right-hand grooves in that there are stronger steps to the front at the mouth locations of the left grooves in the rear front channel wall (15.h) than at the mouth locations of the right grooves.

In eine derartige unsymmetrisch aufgebaute Spulenträgerhälfte werden Windungen (12) zur Verlängerungsstelle einer Nut hin in die jeweilige Nut eingelegt. Es ergibt sich dann eine Sattel­spulenanordnung, die zu geringeren Abbildungsfehlern führt als sie beim Verwenden herkömmlicher Sattelspulenanordnungen mit symmetrischen Spulenträgerhälften auftreten.

Figure imgaf001
In such an asymmetrically constructed coil carrier half, windings (12) are inserted into the respective slot to the extension point of a slot. The result is a saddle coil arrangement which leads to fewer aberrations than occurs when using conventional saddle coil arrangements with symmetrical coil carrier halves.
Figure imgaf001

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine Sattelspulenanordnung für eine Ka­thodenstrahlröhre, d. h. eine Sattelspulenanordnung mit einem trichterförmigen Spulenträger aus isolierendem Material, der zwei Sattelspulenwicklungen trägt. Der Spulenträger besteht üblicherweise aus zwei Spulenträgerhälften. Die Erfindung he­trifft genauer gesagt derartige Spulenträgerhälften sowie eine Sattelspulenanordnung, die zwei Spulenträgerhälften mit jeweils einer Wicklung aufweist. Diese Sattelspulenanordnungen dienen zur Horizontalablenkung der Elektronenstrahlen in einer Katho­denstrahlröhre. Für das Folgende ist vorausgesetzt, daß es sich bei der Kathodenstrahlröhre um eine solche mit mehreren getrennt steuerbaren Elektronenstrahlen handelt, also typischerweise um eine Farbbildröhre. Jedoch kann die Erfindung auch bei mono­chromen Röhren verwendet werden.The invention relates to a saddle coil assembly for a cathode ray tube, i. H. a saddle coil assembly with a funnel-shaped coil support made of insulating material, which carries two saddle coil windings. The coil former usually consists of two coil former halves. More specifically, the invention relates to such coil carrier halves and a saddle coil arrangement which has two coil carrier halves, each with a winding. These saddle coil arrangements are used for the horizontal deflection of the electron beams in a cathode ray tube. For the following it is assumed that the cathode ray tube is one with a plurality of electronically controllable electron beams, that is to say typically a color picture tube. However, the invention can also be used with monochrome tubes.

STAND DER TECHNIKSTATE OF THE ART

Sattelspulenanordnungen mit einem Spulenträger und zwei Einzel­wicklungen werden auf zwei grundsätzlich unterschiedliche Arten hergestellt. Bei der einen Art werden die Einzelwicklungen auf eine spezielle Form gewickelt, dann gebacken und schließlich am Halter befestigt. Bei der anderen Art, um die es hier alleine geht, wird jede Einzelwicklung unmittelbar auf eine Spulenträ­gerhälfte gewickelt und die beiden bewickelten Spulenträger­hälften werden zur Sattelspulenanordnung zusammengesetzt. Spu­lenträgerhälften für derart aufgebaute Anordnungen weisen zum Aufnehmen der Sattelspulenwicklung folgende Führungsteile für die Wicklung auf:
- eine Vorderrinne am vorderen, weiteren Umfang der trichter­förmigen Hälfte,
- eine Hinterrinne am hinteren, engeren Umfang der Hälfte,
- mehrere linke Nuten, die die beiden Rinnen nahe den linken Enden derselben miteinander verbinden, und
- mehrere rechte Nuten, die die beiden Rinnen nahe deren rech­ten Enden miteinander verbinden, und die winkelmäßig symme­trisch zu den linken Nuten liegen.
Saddle coil arrangements with a bobbin and two individual windings are produced in two fundamentally different ways. In one type, the individual windings are wound on a special shape, then baked and finally attached to the holder. In the other type, which is all about here, each individual winding is wound directly onto one coil carrier half and the two wound coil carrier halves are put together to form the saddle coil arrangement. Coil carrier halves for arrangements constructed in this way have the following guide parts for the winding for receiving the saddle coil winding:
a front channel on the front, further circumference of the funnel-shaped half,
- a back channel on the rear, narrower circumference of half,
- a plurality of left grooves connecting the two channels near the left ends thereof, and
- Several right grooves that connect the two channels near their right ends, and which are angularly symmetrical to the left grooves.

Beim Einlegen der Wicklungsdrähte in die Nuten wird z. B. in der hinteren Rinne mit dem Wickeln begonnen, dann der Draht in die erste rechte Nut (von vorne für die untere Trägerhälfte ge­sehen) geführt, bis er die vordere Rinne erreicht, in der vor­deren Rinne wird er von rechts nach links verlegt, bis die erste linke Nut erreicht ist, in der er dann wieder nach hinten ver­legt wird und dort in die hintere Rinne von links nach rechts eingelenkt wird. Meistens werden mehrere Drähte gleichzeitig verlegt, z. B. vier Drähte mit jeweils 0,375 mm Durchmesser. Wenn insgesamt die erforderliche Anzahl der Windungen, z. B. 10 Windungen mit jeweils vier Drähten in die ersten Nuten ein­gelegt sind, werden die zweiten Nuten bewickelt, usw. Bei Sat­telspulen für den eingangs genannten Anwendungszweck sind tygi­scherweise 4 - 6 Nuten auf jeder Seite einer Spulenträgerhälfte vorhanden.When inserting the winding wires in the slots z. B. started in the rear channel with the winding, then the wire in the first right groove (seen from the front for the lower half of the support) until it reaches the front channel, in the front channel it is laid from right to left until the first left groove is reached, in which it is then moved back again and there is turned into the rear groove from left to right. Usually several wires are laid at the same time, e.g. B. four wires, each 0.375 mm in diameter. If the total number of turns required, e.g. B. 10 turns with four wires each are inserted in the first slots, the second slots are wound, etc. In saddle coils for the application mentioned above, there are typically 4-6 slots on each side of a coil carrier half.

Da der Draht, bedingt durch die Wickeltechnik und aus Platzgrün­den, beim Herstellen einer Wicklung an unterschiedlichen Stel­len unterschiedlich verlegt und unterschiedlich stark gezogen wird, ergeben sich asymmetrische Wicklungen, die zu Abbildungs­fehlern führen. Diese Abbildungsfehler sind in Fig. 5A sehr stark übertrieben dargestellt. in Fig. 5A ist davon ausgegangen, daß auf einem Bildschirm 10 drei hotizontale weiße Linien dar­gestellt werden sollen, nämlich eine in der Mitte und jeweils eine unten und oben am Schirm. Jede weiße Linie setzt sich aus einer roten Linie r, einer grünen Linie g und einer blauen Linie b zusammen. Diese Linien sollen im Idealfall über die ge­samte Schirmbreite übereinander liegen. Mit bisher üblichen Sat­telspulenanordnungen, mit direkt auf einen Spulenträger gewickel­ten Wicklungen, ergeben sich jedoch die systematischen Abbil­dungsfehler gemäß Fig. 5A. Die oberen und unteren drei farbi­gen Einzellinien sind nämlich jeweils nach einer Seite hin zu­nehmend aufgespreizt. Außerdem sind diese Linien insgesamt ge­genüber der Horizontalen verdreht. Bei der mittleren weißen Linie tritt ein Aufspalten in die drei farbigen Einzellinien nahe den Seitenrändern auf (Twist).As the wire, due to the winding technology and for reasons of space, is laid differently and pulled differently at different points when producing a winding, asymmetrical windings result, which lead to aberrations. These aberrations are very exaggerated in Fig. 5A. 5A it is assumed that three hot-horizontal white lines are to be displayed on a screen 10, namely one in the middle and one at the bottom and top of the screen. Each white line consists of a red line r, a green line g and a blue line Line b together. Ideally, these lines should lie one above the other across the entire width of the screen. With conventional saddle coil arrangements, with windings wound directly on a bobbin, however, the systematic aberrations according to FIG. 5A result. The upper and lower three colored single lines are spread apart towards one side. In addition, these lines are all twisted with respect to the horizontal. The middle white line is split into the three colored single lines near the side edges (twist).

Man hat sich bemüht, die anhand von Fig. 5A veranschaulichten systematischen Fehler dadurch so gering wie möglich zu halten, daß beim Herstellen der Wicklungen möglichst gleichbleibende Wickelkräfte angewandt werden. Restfehler erwiesen sich aber als unvermeidbar.Efforts have been made to keep the systematic errors illustrated with reference to FIG. 5A as low as possible by using as constant as possible winding forces when producing the windings. However, residual errors turned out to be unavoidable.

Es bestand daher schon seit Jahren das Problem, die beschrie­benen Abbildungsfehler noch weiter zu verringern.Therefore, there has been a problem for years to reduce the described imaging errors even further.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Es hat sich herausgestellt, daß sich die genannten Abbildungs­fehler fast völlig vermeiden lassen, wenn unsymmetrisch aufge­baute Spulenträgerhälften für die Sattelspulenanordnung verwen­det werden. Es sind nämlich winkelmäßig symmetrisch einander zu­geordnete Nuten nicht mehr gleich lang, sondern die Länge minde­stens einer rechten Nut ist von der Länge einer winkelmäßig symmetrisch zugeordneten linken Nut verschieden. Eine erfin­dungsgemäße Sattelspulenanordnung verwendet derartige erfin­dungsgemäße Spulenträgerhälften.It has been found that the imaging errors mentioned can be almost completely avoided if asymmetrically constructed coil carrier halves are used for the saddle coil arrangement. Namely, grooves that are symmetrically assigned to one another are no longer the same length, but the length of at least one right groove differs from the length of a left groove that is symmetrically assigned to angular. A saddle coil arrangement according to the invention uses such coil carrier halves according to the invention.

Die Erfindung begeht somit einen Weg, der voll im Gegensatz zu den bisherigen Anstrengungen steht: Während diese darauf gerich­tet waren, bestmögliche Symmetrie beim Spulenträger und beim Wickelvorgang zu erzielen, wird bei der Erfindung die Symmetrie der Spulenträgerhälften bewußt gestört. Jede Wicklung wird so aufgebracht, daß sie zur Verlängerungsstelle einer Nut hin in der Nut verläuft. Durch die asymmetrische Spulenträgerausbil­dung werden Asymmetrien im wesentlichen kompensiert, die beim Wickelvorgang dadurch entstehen, daß Wicklungen in die einen Nuten in einer ersten Richtung eingelegt werden, während sie in die winkelmäßig symmetrisch zugeordneten anderen Nuten in der Gegenrichtung eingelegt werden.The invention thus follows a path that is completely contrary to the previous efforts: While these were aimed at, the best possible symmetry in the coil carrier and in To achieve winding process, the symmetry of the coil carrier halves is deliberately disturbed in the invention. Each winding is applied so that it extends to the extension point of a slot in the slot. The asymmetrical coil carrier formation essentially compensates for asymmetries which arise during the winding process in that windings are inserted in one slot in a first direction, while they are inserted in the angularly symmetrically assigned other slots in the opposite direction.

Vorzugsweise erfolgt das Verlängern von Nuten dadurch, daß die hinteren Vorderrinnenwände weiter nach vorne verlegt werden, als es der Stellung der Vorderrinnenwände an den unverlänger­ten Nuten entspricht.Grooves are preferably lengthened by moving the rear front channel walls further forward than corresponds to the position of the front channel walls on the unextended grooves.

KURZE BESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE FIGURES

  • Fig. 1 Vorderansicht einer Spulenträgerhälfte;Fig. 1 front view of a bobbin half;
  • Fig. 2 Rückansicht der Spulenträgerhälfte gemäß Fig. 1;FIG. 2 rear view of the coil carrier half according to FIG. 1;
  • Fig. 3 Seitenansicht der Spulenträgerhälfte gemäß den Fig. 1 und 2 von derjenigen Seite, auf der höhere Stufen in der hinteren Vorderrinnenwand für unterschiedliche Nutlängen sorgen;3 side view of the coil carrier half according to FIGS. 1 and 2 from the side on which higher steps in the rear front channel wall ensure different slot lengths;
  • Fig. 4 Seitenansicht entsprechend der von Fig. 3, jedoch von derjenigen Seite, in der Stufen in der vorderen Hinterrinnenwand für ein Verlängern der Nuten sorgen;Fig. 4 side view corresponding to that of Figure 3, but from the side in which steps in the front rear gutter wall ensure an elongation of the grooves.
  • Fig. 5A schematische, stark übertriebene Darstellung von Ab­bildungsfehlern unter Verwendung einer Sattelspulen­anordnung mit herkömmlichen Spulenträgerhälften; und5A is a schematic, highly exaggerated representation of aberrations using a saddle coil arrangement with conventional coil carrier halves; and
  • Fig. 5B Darstellung entsprechend derjenigen von Fig. 5A, jedoch für eine Sattelspulenanordnung mit unsymme­trischen Spulenträgerhälften.Fig. 5B representation corresponding to that of Fig. 5A, but for a saddle coil arrangement with asymmetrical coil carrier halves.
WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS OF CARRYING OUT THE INVENTION

Die Fig. 1 - 4 zeigen eine Spulenträgerhälfte 11 eines Spulen­trägers für eine Sattelspulenanordnung für eine Kathodenstrahl­röhre. Die gesamte Sattelspulenanordnung besteht aus zwei der­artigen Spulenträgerhälften, von denen jede eine Sattelspulen­wicklung trägt. Eine einzige Windung 12 einer solchen Wicklung ist in den Fig. 1 - 4 gestrichelt dargestellt. Der Gesamtaufbau einer Wicklung entspricht dem herkömmlichen Aufbau, wie er eingangs erläutert ist.1-4 show a coil carrier half 11 of a coil carrier for a saddle coil arrangement for a cathode ray tube. The entire saddle coil assembly consists of two such coil carrier halves, each of which carries a saddle coil winding. A single turn 12 of such a winding is shown in dashed lines in FIGS. 1-4. The overall structure of a winding corresponds to the conventional structure as explained at the beginning.

Die Spulenträgerhälfte 11 gemäß den Figuren ist trichterförmig ausgebildet, mit einer Vorderrinne 13 am vorderen, weiteren Um­fang der Spulenträgerhälfte, und einer Hinterrinne 14 am hinte­ren, engeren Umfang. Die Vorderrinne 13 ist durch eine vordere Vorderrinnenwand 15.v und eine hintere Vorderrinnenwand 15.h begrenzt. Entsprechend ist die Hinterrinne 14 durch eine vordere Hinterrinnenwand 16.v und eine hintere Hinterrinnenwand 16.h begrenzt. In der hinteren Vorderrinnenwand 15.h sind Schlitze 17.13 vorhanden, und die vordere Hinterrinnenwand 16.v weist entsprechende Schlitze 17.14 auf. An den Stellen dieser Schlitze münden Nuten in die Rinnen. Es sind 5 linke Nuten 18.1l - 18.5l und 5 rechte Nuten 18.1r - 18.5r vorhanden.The coil support half 11 according to the figures is funnel-shaped, with a front groove 13 on the front, further circumference of the coil support half, and a rear groove 14 on the rear, narrower circumference. The front gutter 13 is delimited by a front front gutter wall 15.v and a rear front gutter wall 15.h. Correspondingly, the rear gutter 14 is delimited by a front gutter wall 16.v and a rear gutter wall 16.h. Slits 17.13 are present in the rear front channel wall 15.h, and the front rear channel wall 16.v has corresponding slots 17.14. Grooves open into the channels at the locations of these slots. There are 5 left grooves 18.1l - 18.5l and 5 right grooves 18.1r - 18.5r.

Die in den Figuren dargestellte Windung 12 verläuft in der Hin­terrinne 14 bei Ansicht der Hälfte von vorne im Gegenuhrzeiger­sinn, tritt dann durch einen Schlitz 17.14 in die dritte linke Nut 18.3l ein und gelangt über einen Schlitz 17.13 in die Vor­derrinne 13, in der sie im Uhrzeigersinn bis zu demjenigen Schlitz geführt ist, in den die dritte rechte Nut 18.3r mündet. Über diese Nut und den zugehörigen Schlitz 17.14 in der vorderen Hinterrinnenwand 16.v gelangt der Draht wieder in die Hinter­rinne 14 und somit zum Ausgangspunkt.The winding 12 shown in the figures runs counterclockwise in the rear channel 14 when half is viewed from the front, then enters the third left groove 18.3l through a slot 17.14 and passes through a slot 17.13 into the front channel 13, in which it is in the Clockwise is to the slot into which the third right groove 18.3r opens. Via this groove and the associated slot 17.14 in the front gutter wall 16.v, the wire reaches the gutter 14 again and thus to the starting point.

Aus den Seitenansichten der Fig. 3 und 4 ist erkennbar, daß die hintere Vorderrinnenwand 15.h gestuft ist, und zwar so, daß sie an den Stellen unterschiedlicher Schlitze 17.13 unterschiedlich weit vorne liegt, und zwar um so weiter vorne, je dichter ein Schlitz am horizontalen Ende der Spulenträgerhälfte 11 liegt. Diese Stufung als solche ist aus dem Stand der Technik bekannt. Von besonderer Bedeutung für den dargestellten Spulenträger ist je­doch, daß die Stufenhöhe am Ort der linken Nuten 18.2l - 18.5l größer ist als am Ort der rechten Nuten 18.2r - 18.5r. Dadurch sind die genannten linken Nuten länger als die zugehörigen ge­nannten rechten Nuten. Nur die jeweils ersten Nuten links und rechts, also die Nuten 18.1l und 18.1r sind gleich lang.It can be seen from the side views of FIGS. 3 and 4 that the rear front channel wall 15 lies at the horizontal end of the bobbin half 11. This gradation as such is known from the prior art. Of particular importance for the coil carrier shown, however, is that the step height at the location of the left slots 18.2l - 18.5l is greater than at the location of the right slots 18.2r - 18.5r. As a result, the left grooves mentioned are longer than the associated right grooves mentioned. Only the first grooves on the left and right, i.e. the grooves 18.1l and 18.1r, are of the same length.

Aus den Fig. 3 und 4 ist weiterhin erkennbar, daß für die vierte und fünfte Nut rechts, also die Nuten 18.4r und 18.5r, die vor­dere Hinterrinnenwand 16.v zunehmend nach hinten versetzt ge­stuft ist. Dagegen verläuft die vordere Hinterrinnenwand 16.v auf der linken Seite ohne Stufen. Die Rückstufung auf der rech­ten Seite führt dazu, daß diejenigen Verlängerungen, die für die linken Nuten 18.4l und 18.5l gegenüber den entsprechenden rechten Nuten durch die unterschiedlichen Stufungen in der hin­teren Vorderrinnenwand 15.v erzielt wurden, wieder teilweise, jedoch nicht vollständig rückgemacht werden. Dies, weil die Stufungsunterschiede in der hinteren Vorderrinnenwand 15.h größer sind als die Stufungsunterschiede in der vorderen Hin­terrinnenwand 16.v. In einem Ausführungsbeispiel war der Stu­fungsunterschied für jeweils zugeordnete Nuten links und rechts an der hinteren Vorderrinnenwand 1 mm, während er für die vor­dere Hinterrinnenwand nur 0,5 mm betrug.From FIGS. 3 and 4 it can also be seen that for the fourth and fifth grooves on the right, ie grooves 18.4r and 18.5r, the front rear gutter wall 16.v is increasingly stepped to the rear. In contrast, the front gutter wall 16.v runs on the left side without steps. The downgrading on the right-hand side means that the extensions which were achieved for the left grooves 18.4l and 18.5l compared to the corresponding right grooves by the different gradations in the rear front gutter wall 15.v are partially, but not completely removed . This is because the gradation differences in the rear front gutter wall 15.h are greater than the gradation differences in the front rear gutter wall 16.v. In one exemplary embodiment, the gradation difference for the respectively assigned grooves on the left and right on the rear front gutter wall was 1 mm, while it was only 0.5 mm for the front rear gutter wall.

Beim Ausführungsbeispiel sind also die vier Nuten 18.2l - 18.5l jeweils am Ort der hinteren Vorderrinnenwand 15.v gegenüber den entsprechenden rechten Nuten 18.2r - 18.5r verlängert. Aber auch bei den rechten Nuten 18.4r und 18.5r liegt eine Verlänge­rung vor, jedoch nicht an der Seite der hinteren Vorderrinnen­ wand 15.h, sondern an der Seite der vorderen Hinterrinnenwand 16.v. In eine derart gebildete Spulenträgerhälfte werden Win­dungen eingebracht, wie weiter oben anhand der Windung 12 er­läutert, nämlich jeweils zur Verlängerungsstelle hin.In the exemplary embodiment, the four grooves 18.2l - 18.5l are each extended at the location of the rear front channel wall 15.v compared to the corresponding right grooves 18.2r - 18.5r. But there is also an extension for the right grooves 18.4r and 18.5r, but not on the side of the rear front channels wall 15.h, but on the side of the front gutter wall 16.v. Windings are introduced into a coil carrier half formed in this way, as explained above with reference to the winding 12, namely in each case towards the extension point.

Sattelspulenanordnungen mit Spulenträgerhälften gemäß den Fig. 1 - 4 können bei allen Arten von Kathodenstrahlröhren einge­setzt werden. Vom jeweiligen Einsatzzweck hängt es ab, ob alle Nuten zu verlängern sind oder nur einige, und ob Verlängerungen sowohl vorne wie auch hinten erforderlich sind. Es hat sich in der Praxis herausgestellt, daß die größten Effekte durch Ver­längerungen vorne erzielt werden. Vom Anwendungszweck hängt auch die Anzahl der verwendeten Nuten und die Anzahl der einge­brachten Windungen ab.Saddle coil arrangements with coil carrier halves according to FIGS. 1-4 can be used with all types of cathode ray tubes. Depending on the intended use, it depends on whether all grooves are to be extended or only a few, and whether extensions are required both at the front and at the rear. It has been found in practice that the greatest effects are achieved by extensions at the front. The number of grooves used and the number of turns introduced also depend on the intended use.

Wesentlich für alle Variationen ist, daß die Länge mindestens einer rechten Nut von der Länge der winkelmäßig symmetrisch zu­geordneten linken Nut verschieden ist. Wesentlich für Sattel­spulenanordnungen mit solchen Spulenträgern ist, daß die Wick­lungen so aufgebracht sind, daß sie zu der Verlängerungsstelle einer Nut hin in der Nut verlaufen.It is essential for all variations that the length of at least one right groove is different from the length of the angularly symmetrically assigned left groove. It is essential for saddle coil arrangements with such coil carriers that the windings are applied in such a way that they run in the groove towards the extension point of a slot.

Claims (4)

1. Spulenträgerhälfte für eine Sattelspule für eine Kathoden­strahlröhre, mit
- einer Vorderrinne (13) am vorderen, weiteren Umfang der trichterförmigen Hälfte,
- einer Hinterrinne (14) am hinteren, engeren Umfang,
- mehreren linken Nuten (18.1l - 18.5l), die die beiden Rin­nen nahe deren linken Enden miteinander verbinden, und
- mehreren rechten Nuten (18.1r - 18.5r), die die beiden Rinnen nahe deren rechten Enden miteinander verbinden, und die winkelmäßig symmetrisch zu den linken Nuten liegen, dadurch gekennzeichnet, daß
- die Länge mindestens einer rechten Nut (18.2r - 18.5r) von der Länge der winkelmäßig symmetrisch zugeordneten linken Nut (18.2l - 18.5l) verschieden ist.
1. Coil carrier half for a saddle coil for a cathode ray tube, with
- a front channel (13) on the front, further circumference of the funnel-shaped half,
- a rear gutter (14) on the rear, narrower circumference,
- several left grooves (18.1l - 18.5l) connecting the two channels near their left ends, and
- Several right grooves (18.1r - 18.5r), which connect the two channels near their right ends, and which are angularly symmetrical to the left grooves, characterized in that
- The length of at least one right groove (18.2r - 18.5r) is different from the length of the angularly symmetrically assigned left groove (18.2l - 18.5l).
2. Spulenträgerhälfte nach Anspruch 1, dadurch gekenn­zeichnet, daß die hintere Vorderrinnenwand (15.h) an den jeweiligen Mündungsorten der Nuten (18.1l - 18.5l, 18.1r - 18.5r) unterschiedlich weit hinten liegt.2. coil carrier half according to claim 1, characterized in that the rear front channel wall (15.h) at the respective mouth locations of the grooves (18.1l - 18.5l, 18.1r - 18.5r) lies at different distances to the rear. 3. Spulentragerhälfte nach Anspruch 1, dadurch gekenn­zeichnet, daß die vordere Hinterrinnenwand (16.v) an den jeweiligen Mündungsorten der Nuten (18.1l - 18.5l, 18.1r - 18.5r) unterschiedlich weit vorne liegt.3. coil carrier half according to claim 1, characterized in that the front rear channel wall (16.v) at the respective mouth locations of the grooves (18.1l - 18.5l, 18.1r - 18.5r) lies at different distances in front. 4. Sattelspulenanordnung für eine Kathodenstrahlröhre mit
- einem trichterförmigen Spulenträger aus zwei Hälften (11), und
- einer Wicklung (12) auf jeder Spulenträgerhälfte, dadurch gekennzeichnet, daß
- jede Spulenträgerhälfte (11) nach einem der Ansprüche 1 - 3 ausgebildet ist, und
- jede Wicklung so aufgebracht ist, daß ihre Windungen (12) auf die Verlängerungsstelle einer Nut (18.2l - 18.5l, 18.4r und 18.5r) hin in der Nut verlaufen.
4. Saddle coil arrangement for a cathode ray tube
- A funnel-shaped bobbin from two halves (11), and
- A winding (12) on each coil carrier half, characterized in that
- Each coil carrier half (11) is designed according to one of claims 1-3, and
- Each winding is applied in such a way that its turns (12) extend into the slot at the extension point of a slot (18.2l - 18.5l, 18.4r and 18.5r).
EP90110983A 1989-06-24 1990-06-11 Saddle coil arrangement for a cathode ray tube and a coil support for such an arrangement Expired - Lifetime EP0405209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3920699A DE3920699A1 (en) 1989-06-24 1989-06-24 SADDLE COIL ARRANGEMENT FOR A CATHODE RAY TUBE AND COIL CARRIER FOR SUCH AN ARRANGEMENT
DE3920699 1989-06-24

Publications (3)

Publication Number Publication Date
EP0405209A2 true EP0405209A2 (en) 1991-01-02
EP0405209A3 EP0405209A3 (en) 1991-09-18
EP0405209B1 EP0405209B1 (en) 1994-08-31

Family

ID=6383469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110983A Expired - Lifetime EP0405209B1 (en) 1989-06-24 1990-06-11 Saddle coil arrangement for a cathode ray tube and a coil support for such an arrangement

Country Status (5)

Country Link
US (1) US5027097A (en)
EP (1) EP0405209B1 (en)
JP (1) JP2776618B2 (en)
CA (1) CA2019270C (en)
DE (2) DE3920699A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572192A1 (en) * 1992-05-26 1993-12-01 Murata Manufacturing Co., Ltd. Saddle type bobbin for deflection coil
EP0590547A1 (en) * 1992-09-28 1994-04-06 Murata Manufacturing Co., Ltd. A frame body for use in winding a coil for deflection yoke

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08195178A (en) * 1995-01-18 1996-07-30 Sony Corp Bobbin for deflection coil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249280A1 (en) * 1986-06-10 1987-12-16 Koninklijke Philips Electronics N.V. A cathode ray tube system comprising an electromagnetic deflection unit directly wound on a support and an eletromagnetic deflection unit

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Publication number Priority date Publication date Assignee Title
US3601731A (en) * 1970-01-30 1971-08-24 Ibm Coil form for a magnetic deflection york
DE2807978C2 (en) * 1978-02-24 1992-08-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Deflection yoke for a cathode ray tube
DE2940931C2 (en) * 1979-10-09 1986-05-07 Siemens AG, 1000 Berlin und 8000 München Deflection unit for cathode ray tubes
NL8203133A (en) * 1982-08-09 1984-03-01 Philips Nv DEFLECTION Yoke.
JPS6166347A (en) * 1984-09-10 1986-04-05 Hitachi Ltd Deflection yoke
JPS62107352U (en) * 1985-12-25 1987-07-09
NL8600933A (en) * 1986-04-14 1987-11-02 Koninkl Philips Electronics Nv ELECTROMAGNETIC DEFLECTOR.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249280A1 (en) * 1986-06-10 1987-12-16 Koninklijke Philips Electronics N.V. A cathode ray tube system comprising an electromagnetic deflection unit directly wound on a support and an eletromagnetic deflection unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572192A1 (en) * 1992-05-26 1993-12-01 Murata Manufacturing Co., Ltd. Saddle type bobbin for deflection coil
EP0590547A1 (en) * 1992-09-28 1994-04-06 Murata Manufacturing Co., Ltd. A frame body for use in winding a coil for deflection yoke
US5402091A (en) * 1992-09-28 1995-03-28 Murata Mfg. Co., Ltd. Frame body for use in winding a coil for deflection yoke

Also Published As

Publication number Publication date
CA2019270C (en) 1999-10-12
US5027097A (en) 1991-06-25
JP2776618B2 (en) 1998-07-16
DE59006952D1 (en) 1994-10-06
DE3920699A1 (en) 1991-01-10
EP0405209A3 (en) 1991-09-18
JPH03129646A (en) 1991-06-03
EP0405209B1 (en) 1994-08-31
CA2019270A1 (en) 1990-12-24

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