EP0572192B1 - Bobine de déflection du type en selle - Google Patents

Bobine de déflection du type en selle Download PDF

Info

Publication number
EP0572192B1
EP0572192B1 EP93303990A EP93303990A EP0572192B1 EP 0572192 B1 EP0572192 B1 EP 0572192B1 EP 93303990 A EP93303990 A EP 93303990A EP 93303990 A EP93303990 A EP 93303990A EP 0572192 B1 EP0572192 B1 EP 0572192B1
Authority
EP
European Patent Office
Prior art keywords
bobbin
coil
ribbon cable
nozzle
winding
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
EP93303990A
Other languages
German (de)
English (en)
Other versions
EP0572192A1 (fr
Inventor
Hiroshi Ikeuchi
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of EP0572192A1 publication Critical patent/EP0572192A1/fr
Application granted granted Critical
Publication of EP0572192B1 publication Critical patent/EP0572192B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01J29/70—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/236—Manufacture of magnetic deflecting devices for cathode-ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F2041/0711—Winding saddle or deflection coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00—Apparatus and processes for manufacture of discharge tubes
    • H01J2209/236—Manufacture of magnetic deflecting devices
    • H01J2209/2363—Coils
    • H01J2209/2366—Machines therefor, e.g. winding, forming, welding, or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/70—Electron beam control outside the vessel
    • H01J2229/703—Electron beam control outside the vessel by magnetic fields
    • H01J2229/7032—Conductor design and distribution
    • H01J2229/7035—Wires and conductors
    • H01J2229/7036—Form of conductor
    • H01J2229/7037—Form of conductor flat, e.g. foil, or ribbon type

Definitions

  • the present invention relates to a saddle type bobbin for a deflection coil of a deflection yoke mounted on television receivers or display units.
  • Fig. 1 shows an example of a bobbin for a saddle type deflection coil for use in a typical deflection yoke.
  • the bobbin 2 is provided with a plurality of coil-winding grooves 5, on which, for example, a coiling wire 11 is wound in layers as shown in Fig. 2, to thereby form a deflection coil.
  • the coiling wire 11 comprises single conductive wires (including litz wires) with an insulating layer 4 provided thereon which is coated with an adhesive on its periphery.
  • the coiling wire 11 In winding the coiling wire 11 on the aforementioned coil-winding grooves 5, the coiling wire 11 is wound in layers by a flyer type automatic winding machine, in single or multiple strands, unbounded or separated in the form of single wires, whereby a deflection coil will be produced. Subsequently, the thus layer-wound coil is supplied with electric power, to heat and melt the adhesive applied outside the insulating layer 4, so that the coil wires adhere to each other to complete a deflection coil.
  • Such prior art deflection coil in accordance with the prior art portion of claim 1 as described in DE-A-2744048 suffers from difficulties: owing to variation of the stretching force acting on coiling wire 11 as it is wound and other reasons, the coiling wire 11 is displaced and biassed as shown in Fig. 2, and in other cases, the order of winding of coiling wire 11 is altered and hence such winding as previously designated by a design instruction cannot be reproduced. Further, the biassed states of coiling wire 11 of deflection coil that is mass-produced differ from one another for each article, therefore, it would be impossible to regulate a deflection field with high precision.
  • the coiling wire 11 is reduced in its displacement and biassed winding as the width of the coil-winding groove is narrowed to satisfy an original design, but followed by another problem of coil performance being deteriorated because of a ratio L/R between inductance L and resistance R being reduced.
  • a deflection coil which is composed by forming a conductive ribbon cable in which a plurality of adjoining conductive wires are arranged parallel in a row as shown in Figs. 3A and 3D, and winding this member in place of winding single wire strands as used to be practiced.
  • a similar conductive ribbon cable is disclosed in DE-A-2744048.
  • Examples of conductive ribbon cable 15 include one that is composed as shown in Fig. 3A by arranging in parallel a plurality of conductive wires 8 of copper, aluminum or the like with an insulating layer 4 coated thereon, and adhering them using an adhesive 6; one that is composed as shown in Fig. 3B by arranging in parallel a plurality of conductive wires 8 with an insulating layer 4 coated thereon, and adhering together the wires on one side of an insulator sheet 7 of resin, etc., with an adhesive 6; one that is composed as shown in Fig. 3C by arranging and adhering together in parallel a plurality of conductive wires 8 formed with an insulating layer 4 and an adhesive layer 9; and one that is composed as shown in Fig. 3D by arranging a plurality of conductive wires in a contacting manner in a row, each wire being with an insulating layer 4 covered by a thermoplastic adhesive layer 20.
  • the conductive wires 8 forming the aforementioned conductive ribbon cable 15 are arranged in parallel with one another in an orderly manner in a row, and therefore, neither will each conductive wire 8 be displaced in ribbon cable 15, nor will the order of the wires be altered. Therefore, when this conductive ribbon cable 15 is used, namely, the ribbon cable 15 is wound in layers, it is possible to produce a deflection coil free from the problems such as significant displacement of the conductive wires 8, and the like.
  • a saddle type bobbin for the deflection coil typically has coil-winding grooves 5 in its crossover portions 18, 19 disposed respectively on head and tail end sides thereof, as is exemplarily shown in Fig. 5.
  • the height of an inner side flange 3B of the coil-winding groove 5 is formed higher than that of a corresponding outer side flange 3A thereof.
  • the winding machine of this previously proposed example is configured as shown in Figs. 6A and 6B. Specifically, there are provided a base 1, a supporting column 17, a bobbin attachment table 33, a bobbin holding member 31, a bobbin 25 for conductive ribbon cable 15, a bobbin rotating mechanism 12, a back-tension adding means 16, a conductive ribbon cable 15, a nozzle supporting table 26, a nozzle rotating mechanism 28, a nozzle shaft 27, a nozzle 30 disposed in a front end of the nozzle shaft, a nozzle head 23, a nozzle supporting column 35, a bobbin 2, a supporting table 41 for bobbin 2, a bobbin holding portion 42, an arm 40, a first bobbin rotating mechanism 38, a bobbin-side supporting column 37, and a second bobbin rotating mechanism 44.
  • Nozzle shaft 27 is rotatable in both clockwise and anti-clockwise directions as desired by means of nozzle rotating mechanism 28.
  • Nozzle supporting table 26 is attached movable in a vertical direction shown by Y to nozzle supporting column 35.
  • Nozzle supporting 35 is placed upright movable in a horizontal direction shown by X. Attached to the lower end of nozzle shaft 27 is nozzle 30, which is rotatable to a desired direction.
  • Bobbin holding portion 42 of bobbin 2 is shiftable in Z-direction (a direction normal to the document surface in Fig. 6B).
  • the bobbin 2 is rotatable about X-axis in link with the rotation of first bobbin rotating mechanism 38 and is driven rotatably about Z-axis in link with second bobbin rotating mechanism 44.
  • conductive ribbon cable 15 is fitted into a groove disposed in the right side inner circumferential wall 45 of bobbin 2 while bobbin 2 is moved in the direction of the arrow and nozzle 30 is moved in X-axis direction facing the inner side of the bobbin, keeping a predetermined distance therebetween.
  • nozzle 30 reaches the upper side or head side of bobbin 2, nozzle 30 will be rotated from a position 'a' through a position 'b' to a position 'c' in a course shown by arrows as shown in Fig. 7B.
  • conductive ribbon cable 15 may be wound smoothly if nozzle 30 is once rotated up to a position beyond flange 3B so as to round out the ribbon cable, and then returned to the position 'c'.
  • bobbin 2 is rotated about X-axis by 90 degrees in the clockwise direction to the state shown in Fig. 7C. From this state, bobbin 2 is rotated by 180 degrees in the anti-clockwise direction about an X-axis passing through a point Z1, to thereby make a state shown in Fig. 7D.
  • conductive ribbon cable 15 is fitted to the crossover portion on the head side of bobbin 2.
  • bobbin 2 is rotated 90 degrees in the clockwise direction about the X-axis to reach a state shown in Fig. 7E.
  • nozzle 30 is rotated from the position 'c' through a position 'd' to the position 'a' in a course shown by arrows in Fig. 7E.
  • conductive ribbon cable 15 may be wound smoothly if nozzle 30 is once rotated beyond flange 3B so as to round out the ribbon cable, and then returned to the position 'a'.
  • bobbin 2 is shifted downward along Z-axis, and nozzle 30 being moved left in X-axis direction while facing the inner side of the bobbin keeping a predetermined distance therebetween, whereby conductive ribbon cable 15 is fitted into a groove disposed on the opposite side.
  • nozzle 30 is moved from the position 'a' through the position 'b' to the position 'c' in a course shown by arrows in Fig. 7F.
  • nozzle 30 is once rotated up to a position beyond flange 3B so as to round out the ribbon cable 15, and then returned to the position 'c'. Then, bobbin 2 is rotated 90 degrees in the clockwise direction about the X-axis to reach a state shown in Fig. 7G. From this state, bobbin 2 is rotated 180 degrees in the anti-clockwise direction about Z-axis to thereby make a state shown in Fig. 7H. As a result, conductive ribbon cable 15 is fitted to the crossover portion on the tail end side of bobbin 2.
  • bobbin 2 is rotated 90 degrees in the clockwise direction about X-axis to make a state shown in Fig. 7I.
  • nozzle 30 is once rotated opposite to a position beyond flange 3B so as to round out the conductive ribbon cable 15, and then, nozzle 30 is rotated from the position 'c' through the position 'd' to the position 'a' in a course shown by the arrow.
  • the operation returns to the initial state shown in Fig. 7A, and the cycle described heretofore will be repeated to wind conductive ribbon cable 15 successively into each groove of bobbin 2, whereby a saddle type deflection coil may be completed.
  • the present invention has been achieved to eliminate the above problems, and it is an object of the present invention to provide a saddle type bobbin for deflection coil wherein a conductive ribbon cable (wire row member) can be wound with precision by a simple winding operation that may prevent a nozzle from colliding against crossover portion while the conductive ribbon cable is wound on the saddle-shaped bobbin.
  • a saddle type bobbin for a deflection coil comprising a head side and a tail end side, a plurality of rows of coil winding grooves extending generally between the head side and the tail end side for receiving a conductive wire ribbon cable to form the deflection coil, and crossover grooves at the head side and the tail end side of the bobbin, linking the coil winding grooves so that the conductive wire ribbon cable can be fitted in a continuous manner to the coil winding grooves and crossover grooves to form a saddle-type deflection coil, each of said crossover grooves being defined between an outer flange and an inner flange of the bobbin, characterised in that the height of said inner flange is equal to, or smaller than that of said corresponding outer flange.
  • a conductive ribbon cable is fitted into a coil-winding groove by once rotating a nozzle for delivering the conductive ribbon cable up to a position beyond the inner flange so as to round out the conductive ribbon cable when the nozzle travels from the inner side with respect to the longitudinal direction of the bobbin to the crossover portion, and returning the nozzle to the center of the coil-winding groove.
  • conductive ribbon cable can be wound into the coil-winding grooves by positioning the front end of the nozzle for delivering conductive ribbon cable closer to the height of the outer flange of the coil-winding groove. As a result, the conductive ribbon cable can be wound up stably and exactly without failure.
  • the height of the inner flange is set equal to or smaller than that of the corresponding outer flange in both the crossover portions, when the nozzle rotates, or travels from the inner side of the bobbin with respect to longitudinal direction thereof to the crossover portion, or vice versa, it is possible to prevent collision of the nozzle with the inner flange, facilitating the winding operation.
  • Fig. 9 shows main configurations of a saddle type bobbin for deflection coil in accordance with the embodiment of the present invention.
  • Fig. 10 shows a schematic perspective view of a saddle type bobbin for deflection coil shown cut in half in accordance with the embodiment of the present invention.
  • the characteristic feature of the embodiment of the invention lies in that the height of an inner flange of a coil-winding groove disposed for each of crossover portions on the head side and tail end (neck) side of a bobbin is equal to, or less than that of a corresponding outer flange, and the other configurations are the same as those of the prior art example.
  • bobbin 2 has coil-winding grooves 5 defined between outer and inner flanges 3A and 3B in its crossover portions 18, 19 disposed respectively on head and tail end sides thereof.
  • the height of inner flange 3B of the coil-winding groove 5 is formed smaller than that of outer flange 3A thereof.
  • Nozzle 30 for delivering conductive ribbon cable 15 is disposed close to flange 3A of coil-winding groove 5.
  • conductive ribbon cable 15 can be wound into the coil-winding groove 5 formed in the crossover portion by keeping nozzle 30 for delivering ribbon cable 15 closer to the groove. As a result, conductive ribbon cable 15 can be wound up stably and exactly without displacing or deviating from the groove of the crossover portion.
  • the present invention is not limited to the above embodiment, but various other configurations can be adopted.
  • inner flange 3B of the crossover portion is smaller than that of outer flange 3A
  • inner flange 3B may be as high as corresponding outer flange 3A.
  • the present invention will work well if a relation h W ⁇ h B ⁇ h A holds, where h W denotes a height of a layered coil 13 of the conductive ribbon cable in coil-winding groove 5 of the crossover portion, h B and h A represent heights of outer flange 3A and inner flange 3B, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Claims (1)

  1. Bobine du type en selle (2) pour une bobine de déflexion comprenant un côté frontal et un côté d'extrémité arrière, plusieurs rangées de rainures (5) d'enroulement de la bobine (5) s'étendant en général entre le côté frontal et le côté d'extrémité arrière pour recevoir un câble métallique conducteur plat (15) pour former la bobine de déflexion, des rainures de raccord (18. 19), agencées au niveau du côté frontal et du côté d'extrémité arrière de la bobine, reliant les rainures d'enroulement de la bobine (5), de sorte que le câble métallique conducteur plat (15) peut être ajusté de manière continue dans les rainures d'enroulement de la bobine et les rainures de raccord, pour produire une bobine de déflexion du type en selle, chacune desdites rainures de raccord (18, 19) étant définie entre une bride extérieure (3A) et une bride intérieure (3B) de la bobine, caractérisée en ce que la hauteur de ladite bride intérieure (3B) est égale ou inférieure à celle de ladite bride extérieure correspondante (3A).
EP93303990A 1992-05-26 1993-05-21 Bobine de déflection du type en selle Expired - Lifetime EP0572192B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4158622A JPH05325832A (ja) 1992-05-26 1992-05-26 偏向コイル用鞍型ボビン
JP158622/92 1992-05-26

Publications (2)

Publication Number Publication Date
EP0572192A1 EP0572192A1 (fr) 1993-12-01
EP0572192B1 true EP0572192B1 (fr) 1995-06-28

Family

ID=15675737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93303990A Expired - Lifetime EP0572192B1 (fr) 1992-05-26 1993-05-21 Bobine de déflection du type en selle

Country Status (3)

Country Link
EP (1) EP0572192B1 (fr)
JP (1) JPH05325832A (fr)
DE (1) DE69300218T2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1007859A3 (nl) * 1993-12-07 1995-11-07 Philips Electronics Nv Zadelvormige afbuigspoel, meerdraads gewikkeld, en wikkelmethode.
JP3737191B2 (ja) * 1996-04-26 2006-01-18 株式会社東芝 陰極線管用偏向ヨークおよび陰極線管装置
TW466531B (en) * 1998-12-07 2001-12-01 Koninkl Philips Electronics Nv Saddle-shaped deflection coil and winding method
JP2002367535A (ja) * 2001-06-07 2002-12-20 Mitsubishi Electric Corp 偏向ヨーク装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744048C2 (de) * 1977-09-30 1979-08-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Ablenkeinheit für einen Fernsehempfänger
DE3635220A1 (de) * 1986-10-16 1988-04-21 Standard Elektrik Lorenz Ag Wickelvorrichtung
DE3920699A1 (de) * 1989-06-24 1991-01-10 Nokia Unterhaltungselektronik Sattelspulenanordnung fuer eine kathodenstrahlroehre und spulentraeger fuer eine solche anordnung

Also Published As

Publication number Publication date
DE69300218D1 (de) 1995-08-03
DE69300218T2 (de) 1996-03-14
EP0572192A1 (fr) 1993-12-01
JPH05325832A (ja) 1993-12-10

Similar Documents

Publication Publication Date Title
US6782600B2 (en) Method for winding an armature coil
EP0572192B1 (fr) Bobine de déflection du type en selle
EP0567345B1 (fr) Bobine de déflection et procédé de fabrication
EP0590548B1 (fr) Ruban de fils
JP2816458B2 (ja) 鞍型偏向コイル
EP0590547B1 (fr) Corps de bobine utilisé pour le bobinage d'une bobine de déviation
JP3109241B2 (ja) 偏向コイルおよびその製造方法
JP2897544B2 (ja) 偏向ヨーク
JP3023940B2 (ja) 偏向コイルの製造方法
EP0569231B1 (fr) Bobine de déflection et procédé de fabrication
EP0581586A1 (fr) Bobine de déviation
JP2897545B2 (ja) 偏向ヨーク用コイルの巻線機
JP3355670B2 (ja) 偏向ヨークおよびその偏向磁界の分布調整方法
KR100227703B1 (ko) 음극선관의 분리권선 편향코일 및 그 권선방법과 장치
US6882097B2 (en) Deflection yoke
JPH01107436A (ja) 偏向ヨーク
MXPA00010184A (es) Maquina de enrollamiento de serpentin y metodo para producir serpentin de desviacion.
JPH0631057U (ja) 偏向ヨーク用コイル
JPH0636194U (ja) 偏向ヨーク装置
JPH07211263A (ja) 偏向ヨーク
JP2003142014A (ja) 偏向ヨークおよび偏向ヨークを有する陰極線管受像装置
KR19980023410A (ko) 음극선관의 다층 분리권선 편향코일 및 그 권선방법과 장치
JPH07220654A (ja) 偏向ヨーク
JPH0594940U (ja) 垂直偏向コイル用ボビン
JPH07220655A (ja) 偏向ヨーク

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19931214

17Q First examination report despatched

Effective date: 19940128

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: DOTT. FRANCO CICOGNA

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 69300218

Country of ref document: DE

Date of ref document: 19950803

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120516

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120516

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120519

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69300218

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69300218

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20130520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130520

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130522