EP0690469B1 - Dispositif de déviation, pour tubes images et procédé pour sa fabrication - Google Patents

Dispositif de déviation, pour tubes images et procédé pour sa fabrication Download PDF

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Publication number
EP0690469B1
EP0690469B1 EP95109870A EP95109870A EP0690469B1 EP 0690469 B1 EP0690469 B1 EP 0690469B1 EP 95109870 A EP95109870 A EP 95109870A EP 95109870 A EP95109870 A EP 95109870A EP 0690469 B1 EP0690469 B1 EP 0690469B1
Authority
EP
European Patent Office
Prior art keywords
deflection coil
deflection
pin
assembly
adjusting
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.)
Expired - Lifetime
Application number
EP95109870A
Other languages
German (de)
English (en)
Other versions
EP0690469A1 (fr
Inventor
Heinz Lehner
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.)
Nokia Technology GmbH
Original Assignee
Nokia Technology GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Technology GmbH filed Critical Nokia Technology GmbH
Publication of EP0690469A1 publication Critical patent/EP0690469A1/fr
Application granted granted Critical
Publication of EP0690469B1 publication Critical patent/EP0690469B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • H01J29/826—Deflection arrangements

Definitions

  • the invention relates to the design and to the production of deflection units for picture tubes which, when connected to the picture tube, cause the electron beams to be deflected.
  • the deflection unit is arranged on the neck of the picture tube and comprises a horizontal and a vertical deflection coil arrangement.
  • the horizontal deflection coil arrangement which comprises two saddle-wound coils, is usually formed on a carrier sleeve.
  • Horizontal deflection coil arrangements are also known in which a carrier sleeve is not required. These are horizontal deflection coil arrangements which are manufactured using baking coil technology.
  • the vertical deflection coil arrangement is usually designed so that the two vertical coils are wound around a ferrite ring.
  • the ferrite ring can then also be formed from two interconnected, semicircular segments.
  • wire guide ring In order to make it easier to wind the vertical coils or to position the strands of the vertical coils exactly, it is known to provide at least one of the two end faces with a so-called wire guide ring.
  • wire guide rings are closer, for example, in DE 41 37 785 shown.
  • the deflection unit of a picture tube is formed in such a way that the ferrite ring with the two vertical coils is arranged and connected around the outer jacket of the horizontal deflection coil arrangement in the area between the winding heads of the saddle coils. So that a predetermined deflection of the electron beams is achieved by means of a deflection unit just described, it is necessary to align the vertical deflection coil arrangement with the horizontal deflection coil arrangement.
  • the vertical deflection coil arrangement is first arranged around the horizontal deflection coil arrangement.
  • the vertical deflection coil arrangement is then enclosed by a retaining ring and rotated around the outer jacket of the horizontal deflection coil arrangement until the strands of horizontal and vertical deflection coils running parallel to the tube axis enclose an angle of 90 ° to one another.
  • the alignment of the vertical deflection arrangement to the tube axis is then set in a second adjustment step. If the tube axis is the z-axis of a coordinate system, the vertical deflection coil arrangement is aligned with the tube axis by displacing the vertical deflection coil arrangement in the x and / or y direction. Since the horizontal deflection coil arrangement is connected to a tube in the last-mentioned adjustment step, the movement of the vertical deflection coil arrangement in the x and / or y direction also aligns it with the horizontal deflection coil arrangement. This is also during the last-mentioned adjustment step Vertical deflection coil arrangement still held by the retaining ring already discussed.
  • the two deflection coils are permanently glued to one another, for example by means of a hot glue.
  • the adhesive connection has hardened, the retaining ring is removed and the deflection arrangement formed is made available, for example, as a supplier to the picture tube industry.
  • the invention is therefore based on the object of specifying a deflection arrangement for picture tubes, in which the vertical deflection coil arrangement can be connected very simply and quickly to the horizontal deflection coil arrangement, and a method for connecting Specify vertical and horizontal deflection coil arrangements, which avoids the disadvantages according to the prior art.
  • the basic idea of the invention is to connect the two deflection coil arrangements to one another, for example by means of screws, such a connection not precluding alignment of the two deflection coil arrangements with one another.
  • one of the two deflection coil arrangements has approximately two pin receptacles and the other deflection coil arrangement is provided with two adjustment pins
  • the pin receptacles can be pushed onto the adjustment pins. If the arrangement of the adjustment pins or pin receptacles is selected such that the position of the adjustment pins or pin receptacle approximately corresponds to the above-mentioned 90 ° position of the two deflection coil arrangements, a rough presetting of both deflection coil arrangements is already achieved when the adjustment pins are inserted into the pin receptacles.
  • the pin receptacles and / or the adjustment pins are formed in one piece with a component of the respective deflection coil arrangement.
  • the component in the horizontal deflection coil arrangement can be the carrier sleeve formed from plastic or in the vertical deflection coil arrangement this can be one of the wire guide rings.
  • a particularly easily detachable connection of the two deflection coil arrangements is given if, as stated in claims 4 and 5, screw parts are used as the connecting means.
  • this has the particular advantage that the deflection arrangements formed in this way can be completely disassembled in the event of recycling and do not have to be disposed of as hazardous waste, as in the case of the adhesive connection.
  • the securing means heads of rivets the latter advantages can also be achieved, since rivet connections can also be separated very easily by destroying the rivet head. Subsequent adjustment of the two deflection coil assemblies to one another is no longer possible when using rivet heads.
  • a correspondingly large washer should be arranged between the pin receptacle and the rivet head.
  • FIG. 1 shows a deflection arrangement 10 in a schematic side view, the outer edge regions being shown broken away for reasons of better illustration.
  • This deflection arrangement 10 is formed by an approximately conically shaped carrier sleeve 11 which receives the saddle-shaped horizontal deflection coils (not shown).
  • This unit formed from the carrier sleeve 11 and the horizontal deflection coils is referred to in this application as a horizontal deflection coil arrangement and has the reference number 12.
  • a ferrite ring 15 approximately corresponding to the contour of the outer jacket 13 is arranged between the two winding heads 14.1, 14.2.
  • This ferrite ring 15 is wound with the vertical deflection coils (not shown).
  • the unit formed from ferrite ring 15 and vertical deflection coils is referred to in this application as a vertical deflection coil arrangement and has reference number 16.
  • the end face 17 of the ferrite ring 15, which faces the winding head 14.2, is provided with a wire guide ring 18, which facilitates the positioning of the winding strands of the vertical deflection coil on the ferrite ring 15.
  • a pin receptacle 19, which is connected in one piece to the wire guide ring 18, is formed on each of two opposite edge regions of the wire guide ring 18 formed from plastic. This pin receptacle 19 is shown in more detail in connection with Figure 2.
  • FIG. 2 which also shows a wire guide ring 18 for a ferrite core 15 formed from two individual segments, clearly shows that the pin receptacle 19 is designed approximately as a square-shaped hole.
  • the outer edge of the carrier sleeve 11 is provided in the region of the winding head 14.2 with a flange 20 which has a bore 21.
  • the flange 20 need not necessarily be formed in the carrier sleeve 11. Rather, in another embodiment (not shown), this flange 20 can also be formed in another component of the horizontal deflection coil arrangement 12.
  • An adjustment pin 22 is pushed through the bore 21 and the pin receptacle 19.
  • This adjusting pin 22 is provided at its end facing the winding head 14.1 with a screw head 23 and engages with its other end in a nut 24 and thus connects both deflection coil arrangements 12, 16 to one another.
  • connection of the two deflection coil arrangement 12, 16 shown in FIG. 1 takes place in such a way that first the vertical deflection coil arrangement 16 is arranged around the outer jacket 13 of the horizontal deflection coil arrangement 12 and is aligned with the latter. Since the clear cross-section of the pin receptacles 19 is larger than the diameter of the adjusting pins 22, these can be inserted into the pin receptacles 19 and the bores 21 before the alignment of both deflection coil arrangements 12, 16 and can be screwed to the nuts 24 without the screw heads 23 and the nuts 24 the parts arranged between them are pressed against each other. The final tightening of nut 24 and screw 22, 23 takes place only when the alignment is complete.
  • FIG. 3a shows a further illustration of the screw fastening shown in FIG. 1. It can be clearly seen from the illustration in FIG. 3a that the adjusting pin 22 is connected in one piece to the flange 20 of the carrier sleeve 11. The upper end of the adjustment pin 22 is threaded. Since FIG. 3a, like the representations according to FIGS. 3b and c, shows the deflection coil arrangements 16, 17 in the connected state, the adjusting pin 22 penetrates the pin receptacles 19 of the wire guide ring 18.
  • a washer 26 On the top 25 of the wire guide ring 18 is a washer 26, which is also penetrated by the adjusting pin 22.
  • the outer dimensions of the washer 26 are chosen such that when it is pushed onto the adjusting pin 22, it rests at least in regions on the upper side 25 of the wire guide ring 18 even when the adjusting pin 22 is not in the central position in the pin receptacle 19. What is meant by a region-by-region requirement will be explained in more detail in connection with FIG. 2.
  • a nut 24 is screwed onto the threaded end of the adjusting pin 22 (FIG. 3a), which, by means of the washer 26, presses the wire guide ring 18 against the flange 20 of the carrier sleeve 11.
  • This type of design of the screw fastening has compared to the design according to FIG. 1, which has an adjusting pin 22 provided with a screw head 23 and a nut 24 has the advantage that the alignment pin 22 integrally connected to the flange 20 forces the vertical deflection coil assembly 16 to foresee when it is placed around the outer jacket 13 of the horizontal deflection coil assembly 12.
  • the adjustment pin 22 does not have to be held on during the tightening of the nut 24.
  • the embodiment according to FIG. 3b differs from the embodiment according to FIG. 3a in that the adjusting pin 22 has a screw head 23 which, due to its external dimensions, has the same function as the washer 26 shown in FIG. 3a.
  • the shaft of the adjusting pin 22 provided with the screw head 23 penetrates the pin receptacle 19 and is screwed into the threaded hole 28 in the flange 20. If an adjustment pin 22 provided with a screw head 23 is used, the pre-alignment of the two deflection coil arrangements 12, 16 explained in connection with FIG. 3a and effected via the adjustment pin 22 is omitted when they are assembled.
  • the adjustment pin 22 which is connected in one piece to the flange 20, penetrates the pin receptacle 19 in the wire guide ring 18 when the vertical deflection coil arrangement 16 is arranged around the horizontal deflection coil arrangement 12.
  • a washer 26 is then placed on the respective adjusting pin 22 and the free end of the adjusting pin 22 is deformed into the rivet head 23.1 shown in FIG. 3c.
  • the advantage of this embodiment is that no threaded parts are required to connect the two deflection coil assemblies 12, 16.
  • the rivet head 23.1 and the washer 26 represent the securing means in the sense of claim 1.
  • the respective adjusting pin 22 has, for example, a position in the pin receptacle 19 which is shown in connection with FIG. 2 by the solid circle.
  • the aforementioned nut 24 (shown in dashed lines in FIG. 2) is screwed onto the adjusting pin 22 and tightened onto the adjusting pin 22. Since the outer dimensions of the nut 24 are chosen so large that regardless of the position of the adjusting pin 22 in the pin receptacle 19, part of the nut 24 still rests on the border 27 of the pin receptacle 19 (shown in broken lines in FIG. 2), that when the nut 24 is tightened, the wire guide ring 18 is pressed against the flange 20 of the carrier sleeve 11.

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (6)

  1. Dispositif de déviation pour des tubes image, avec une bobine de déviation horizontale (12) et une bobine de déviation verticale (16) reliée à la bobine de déviation horizontale (12), caractérisé en ce que l'une des deux bobines de déviation (12, 16) présente au moins deux logements de broche (19), en ce que des broches d'ajustage (22) sont prévues sur l'autre bobine de déviation (12, 16), chaque broche d'ajustage (22) ayant une section de tige inférieure qui ne remplit pas la section intérieure du logement de broche (19), en ce que les logements de broche (19) sont traversés par les broches d'ajustage (22) et ce que la position relative des broches d'ajustage (22) dans les logements de broche (19), et donc aussi l'orientation des deux bobines de déviation (12, 16), est fixée solidement l'une par rapport à l'autre dans un plan perpendiculaire à l'axe du dispositif de déviation par des moyens de blocage (23, 24, 26), des moyens de blocage (23, 24, 26) étant prévus et liés sur chaque broche d'ajustage (22), lesquels reposent au moins avec une partie de leurs zones périphériques sur le pourtour (27) du logement de broche (19) et exercent alors dans la zone de support une force de pression sur le pourtour (27) du logement de broche (19) respectif.
  2. Dispositif de déviation selon la revendication 1, caractérisé en ce que le logement de broche (19) et/ou les broches d'ajustage (22) sont reliés d'un seul tenant avec un composant de la bobine de déviation (12,16) respective pour laquelle ils sont prévus.
  3. Dispositif de déviation selon la revendication 2, caractérisé en ce que le composant respectif de la bobine de déviation horizontale (12) est une manchette (11) formée à base de plastique sur laquelle est formé l'enroulement de bobine horizontale et en ce que le composant de la bobine de déviation verticale (16) est une bague de guidage de fil (18) qui est reliée à la bague (15) en ferrite de la bobine de déviation verticale (16).
  4. Dispositif de déviation selon la revendication 1 ou la revendication 2, caractérisé en ce que les broches d'ajustage (22), qui sont prévues sur l'autre bobine de déviation (12, 16) respective, sont des vis sans tête et les deux bobines de déviation (12, 16) sont reliées entre elles par un raccord à vis.
  5. Dispositif de déviation selon l'une quelconque des revendications 1, 2 ou 4, caractérisé en ce que les moyens de blocage sont soit des têtes (23, 23.1), reliées d'un seul tenant aux broches d'ajustage (22), de vis ou de rivets, soit des écrous (24) vissables sur les broches d'ajustage (22).
  6. Procédé pour l'orientation et la liaison de bobines de déviation verticale (16) avec des bobines de déviation horizontale (12) de dispositifs de déviation (10) de tubes image, caractérisé en ce que, étant donné que la bobine de déviation verticale (16) est disposée autour de la bobine de déviation horizontale (12), des broches d'ajustage (22) prévues sur l'une des deux bobines de déviation (12, 16) et des logements de broche (19) formés sur l'autre bobine de déviation (12, 16) respective, pénètrent et ainsi maintiennent ces deux dispositifs de déviation (12, 16) mobiles l'un par rapport à l'autre dans un plan perpendiculaire à l'axe du dispositif de déviation, en ce que les deux dispositifs de déviation (12, 16) sont orientés l'un vers l'autre et en ce que, dans une dernière étape, les bobines (12, 16) orientées l'une vers l'autre sont reliées solidement par l'action conjuguée des moyens de blocage (23, 24, 26) prévus sur les broches d'ajustage (22).
EP95109870A 1994-06-28 1995-06-24 Dispositif de déviation, pour tubes images et procédé pour sa fabrication Expired - Lifetime EP0690469B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422487A DE4422487C2 (de) 1994-06-28 1994-06-28 Ablenkanordnung für Bildröhren und Verfahren zu deren Herstellung
DE4422487 1994-06-28

Publications (2)

Publication Number Publication Date
EP0690469A1 EP0690469A1 (fr) 1996-01-03
EP0690469B1 true EP0690469B1 (fr) 1997-04-09

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ID=6521629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109870A Expired - Lifetime EP0690469B1 (fr) 1994-06-28 1995-06-24 Dispositif de déviation, pour tubes images et procédé pour sa fabrication

Country Status (3)

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EP (1) EP0690469B1 (fr)
DE (2) DE4422487C2 (fr)
ES (1) ES2103142T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1959622U (de) * 1966-09-19 1967-05-03 Siemens Ag Haltevorrichtung fuer eine ablenkspule einer katodenstrahlroehre.
DE2641847A1 (de) * 1976-09-17 1978-03-23 Standard Elektrik Lorenz Ag Anordnung zum befestigen und justieren eines ablenkspulenhalters einer kathodenstrahlroehre
JPS61128449A (ja) * 1984-11-26 1986-06-16 Sony Corp 偏向装置
DE3923110A1 (de) * 1989-07-13 1991-01-17 Graetz Nokia Gmbh Abstuetzeinrichtung fuer eine bildroehrenkomponente
DE4137785A1 (de) * 1991-11-16 1993-05-19 Nokia Deutschland Gmbh Ferritkernhaelften zur vertikalablenkung von elektronenstrahlen

Also Published As

Publication number Publication date
EP0690469A1 (fr) 1996-01-03
DE4422487C2 (de) 2002-09-19
DE4422487A1 (de) 1996-01-04
ES2103142T3 (es) 1997-08-16
DE59500171D1 (de) 1997-05-15

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