EP0405209B1 - 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 PDFInfo
- Publication number
- EP0405209B1 EP0405209B1 EP90110983A EP90110983A EP0405209B1 EP 0405209 B1 EP0405209 B1 EP 0405209B1 EP 90110983 A EP90110983 A EP 90110983A EP 90110983 A EP90110983 A EP 90110983A EP 0405209 B1 EP0405209 B1 EP 0405209B1
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- coil
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- 238000004804 winding Methods 0.000 claims description 29
- 230000004075 alteration Effects 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
- H01J29/762—Deflecting 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 support usually consists of two coil support 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, typically a color picture tube.
- the invention can also be used with monochrome tubes.
- 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 onto a coil carrier, 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 individual 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 other slots in the opposite direction, which are symmetrically associated with the angle.
- 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 carrier half 11 is funnel-shaped, with a front channel 13 on the front, further circumference of the coil carrier half, and a rear channel 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-hand 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 rear channel wall 16.v, the wire arrives again in the rear channel 14 and thus to the starting point.
- the rear front gutter wall 15.h is stepped in such a way that it lies at different points in front at the locations of different slots 17.13, and the further forward, the closer a slot is 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 rear channel 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. It depends on the respective application 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 windings introduced also depend on the application.
- 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)
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Description
Die Erfindung betrifft eine Sattelspulenanordnung für eine Kathodenstrahlröhre, d. h. eine Sattelspulenanordnung mit einem trichterförmigen Spulenträger aus isolierendem Material, der zwei Sattelspulenwicklungen trägt. Eine solche Anordnung ist bekannt aus z.B. EP-A-0 249 280. Der Spulenträger besteht üblicherweise aus zwei Spulenträgerhälften. Die Erfindung betrifft 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. Such an arrangement is known from e.g. EP-A-0 249 280. The coil support usually consists of two coil support 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, typically a color picture tube. However, the invention can also be used with monochrome tubes.
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.
- a front groove on the front, further circumference of the funnel-shaped half,
- a back channel at the rear, narrower circumference of half,
- a plurality of left grooves connecting the two grooves near the left ends thereof, and
- several right-hand grooves that connect the two channels near their right ends and that are angularly symmetrical to the left-hand 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 typischerweise 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 channel 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, each with four wires are inserted into the first slots, the second slots are wound, etc. In saddle coils for the above-mentioned application, 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
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 small 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.
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 other slots in the opposite direction, which are symmetrically associated with the angle.
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.
- Fig. 1
- Vorderansicht einer Spulenträgerhälfte;
- Fig. 2
- Rückansicht der Spulenträgerhälfte gemäß 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;
- 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. 5A
- schematische, stark übertriebene Darstellung von Abbildungsfehlern unter Verwendung einer Sattelspulenanordnung mit herkömmlichen Spulenträgerhälften; und
- Fig. 5B
- Darstellung entsprechend derjenigen von Fig. 5A, jedoch für eine Sattelspulenanordnung mit unsymmetrischen Spulenträgerhälften.
- Fig. 1
- Front view of a bobbin half;
- Fig. 2
- Rear view of the bobbin half according to FIG. 1;
- Fig. 3
- Side view of the coil carrier half according to Figures 1 and 2 from the side on which higher steps in the rear front channel wall ensure different slot lengths.
- Fig. 4
- Side view corresponding to that of Figure 3, but from the side in which steps in the front rear gutter wall provide for an extension of the grooves.
- Figure 5A
- schematic, highly exaggerated representation of aberrations using a saddle coil arrangement with conventional coil carrier halves; and
- Figure 5B
- Representation corresponding to that of FIG. 5A, but for a saddle coil arrangement with asymmetrical coil carrier halves.
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
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
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
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.From the side views of FIGS. 3 and 4 it can be seen that the rear front gutter wall 15.h is stepped in such a way that it lies at different points in front at the locations of different slots 17.13, and the further forward, the closer a slot is lies at the horizontal end of the
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 the 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 rear channel 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. It depends on the respective application 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 windings introduced also depend on the application.
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)
- A coil carrier half for a saddle coil for a cathode ray tube comprising- a front channel (13) at the front, wider periphery of the funnel-shaped half,- a rear channel (14) at the rear, narrower periphery,- a plurality of left-hand grooves (18.11 - 18.51) which connect the two channels to one another in the vicinity of their left-hand ends and- a plurality of right-hand grooves (18.1r - 18.5r) which connect the two channels to one another in the vicinity of their right-hand ends and which are located angularly symmetrically in relation to the left-hand grooves,characterised in that
- the length of at least one right-hand groove (18.2r - 18.5r) differs from the length of the angularly symmetrically associated left-hand groove (18.2l - 18.5l). - A coil carrier half as claimed in Claim 1, characterised in that the rear front channel wall (15.h) extends rearwardly by differing amounts at the respective opening locations of the grooves (18.1l - 18.5l, 18.1r - 18.5r).
- A coil carrier half as claimed in Claim 1, characterised in that the front rear channel wall (16.v) extends forwardly by differing amounts at the respective opening locations of the grooves (18.1l - 18.5l, 18.1r -18.5r).
- A saddle coil arrangement for a cathode ray tube comprising- a funnel-shaped coil carrier composed of two halves (11) and- a winding (12) on each coil carrier half,characterised in that- each coil carrier half (11) is designed in accordance with one of Claims 1 - 3 and- each winding is applied in such manner that its turns (12) extend in the groove in the direction of the extension point of a groove (18.2l -18.5l, 18.4r and 18.5r).
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 EP0405209A2 (en) | 1991-01-02 |
| EP0405209A3 EP0405209A3 (en) | 1991-09-18 |
| EP0405209B1 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05325832A (en) * | 1992-05-26 | 1993-12-10 | Murata Mfg Co Ltd | Saddle type bobbin for deflection coil |
| JP2575388Y2 (en) * | 1992-09-28 | 1998-06-25 | 株式会社村田製作所 | Coil body for coil for deflection yoke |
| JPH08195178A (en) * | 1995-01-18 | 1996-07-30 | Sony Corp | Bobbin for deflection coil |
Family Cites Families (8)
| 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. |
| NL8601501A (en) * | 1986-06-10 | 1988-01-04 | Philips Nv | ELECTROMAGNETIC DEFLECTOR WIRED DIRECTLY ON A CARRIER. |
-
1989
- 1989-06-24 DE DE3920699A patent/DE3920699A1/en not_active Withdrawn
-
1990
- 1990-06-11 EP EP90110983A patent/EP0405209B1/en not_active Expired - Lifetime
- 1990-06-11 DE DE59006952T patent/DE59006952D1/en not_active Expired - Fee Related
- 1990-06-19 CA CA002019270A patent/CA2019270C/en not_active Expired - Fee Related
- 1990-06-22 US US07/542,705 patent/US5027097A/en not_active Expired - Lifetime
- 1990-06-25 JP JP2164360A patent/JP2776618B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0405209A3 (en) | 1991-09-18 |
| CA2019270A1 (en) | 1990-12-24 |
| CA2019270C (en) | 1999-10-12 |
| US5027097A (en) | 1991-06-25 |
| DE59006952D1 (en) | 1994-10-06 |
| DE3920699A1 (en) | 1991-01-10 |
| EP0405209A2 (en) | 1991-01-02 |
| JPH03129646A (en) | 1991-06-03 |
| JP2776618B2 (en) | 1998-07-16 |
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