US3710289A - Deflection coil - Google Patents

Deflection coil Download PDF

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Publication number
US3710289A
US3710289A US00089785A US3710289DA US3710289A US 3710289 A US3710289 A US 3710289A US 00089785 A US00089785 A US 00089785A US 3710289D A US3710289D A US 3710289DA US 3710289 A US3710289 A US 3710289A
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US
United States
Prior art keywords
coil
deflection coil
wires
flat
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
US00089785A
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English (en)
Inventor
W Pax
Rooy H Van
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US Philips Corp
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US Philips Corp
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Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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Publication of US3710289A publication Critical patent/US3710289A/en
Anticipated expiration legal-status Critical
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • 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

  • VAN ROOY AGENT DEFLECTION COIL This invention relates to a deflection coil, more particularly, to a flat coil bent over, subsequent to winding, at least partly into the form of a cylindrical plane for producing a magnetic deflection field in a cathode-ray tube, around the tubular envelope of which usually two coils of said kind for the horizontal deflection and two coils for the vertical deflection are arranged in pairs diametrically opposite each other.
  • Deflection coils foruse on color television camera tubes in which a separate cathode-ray tube is used for each of the three fundamental colors have to satisfy stringent requirements as to identity of the coils to be employed in one and the same apparatus, for example, for horizontal deflection, in order to avoid imaging defects. It is known to form a flat deflection coil from a plurality of relatively fitting rectangular coil portions of progressing size and to bend the set of coils, baked together to a slightly rigid unit, into the required semicylindrical shape. Without prohibitively high costs it has hitherto not been possible to wind the coil portions of normal wire with such complete regularity that subsequent bending of the coil does not disturb this regularity so that in this way the three accurately identical coil pairs cannot be obtained.
  • An object of the invention is to provide a structure which does permit of doing so.
  • the coil in accordance with the invention is characterized in that the coil to be bent comprises a plurality of glue-coated, insulated wires simultaneously wound side by side without intermediate insulating layers, the turns of each wire each forming a flat spiral.
  • the spirals are connected outside the coil in known manner either in series, in parallel or in series-parallel. Winding is completely regular since it does not comprise crossing winding portions and by using wire of uniform thickness accurately identical coils can be obtained at a low cost. It also has been found that the regularity of the coils will not be disturbed by subsequent bending thereof.
  • FIG. 1 illustrates the winding of a deflection'coil in accordance with the invention
  • FIG. 2 is a side elevation of such a coil
  • FIG. 3 shows the final shape of the coil.
  • FIG. 1 shows somewhat simplified the winding of a flat, rectangular coil (see also FIG. 2) comprising a number, in this case four, of insulated wires I wound side by side without insulating intermediate layers.
  • wires provided with a preferably thermoplastic glue layer which is solid at room temperature, are wound from four supply reels 3 (one of them is shown in FIG. 1) in a jig formed by a rectangular winding mandril 5 and two detachable flanges 7.
  • the distance between the flanges (for example, about 2 mms) is equal to four times the wire thickness inclusive of insulation and glue layer.
  • the four wires (shown in a sectional view in FIG. 1 in the winding jig) coil up to form four flat spirals, which, provided the wire thickness is constant, are completely regular even with a fairly large number of layers.
  • the coil After baking the coil into a single unit, which may be performed in a conventional manner by passing a current pulse through each of the four spirals in the winding jig, the coil can be bent in a second jig into the desired cylindrical shape (see FIG. 3) for matching a camera tube 11.
  • the four spirals may be connected in series or in parallel, or they may be electrically interconnected in a different way.
  • a CRT deflection coil having a partially cylindrical shape comprising, a plurality of glue-coated insulated wires that are located side by side without an intermediate insulating layer therebetween so that each wire forms a flat spiral winding with an aperture and a plurality of turns, each of said apertures being substantially identical, said windings being mounted together with the apertures in alignment to form an integral deflection coil unit having a plurality of identical concentric flat spirals disposed side by side, and wherein the flat coil composed of the flat spiral windings has the shape of a partial cylinder.
  • each of the wires that make up a spiral winding have a cylindrical cross-section, said wires being adapted to be connected together in a plurality of configurations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulated Conductors (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
US00089785A 1969-12-04 1970-11-16 Deflection coil Expired - Lifetime US3710289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6918204.A NL160970C (nl) 1969-12-04 1969-12-04 Werkwijze voor het vervaardigen van een afbuigspoel.

Publications (1)

Publication Number Publication Date
US3710289A true US3710289A (en) 1973-01-09

Family

ID=19808546

Family Applications (1)

Application Number Title Priority Date Filing Date
US00089785A Expired - Lifetime US3710289A (en) 1969-12-04 1970-11-16 Deflection coil

Country Status (5)

Country Link
US (1) US3710289A (de)
JP (1) JPS4927966B1 (de)
DE (1) DE2053926C3 (de)
GB (1) GB1318929A (de)
NL (1) NL160970C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878490A (en) * 1974-09-03 1975-04-15 Gen Electric Direct-wound, precision deflection yoke with adhesive coated core
FR2448786A1 (fr) * 1979-02-06 1980-09-05 Bauzhis Albertas Systeme de deviation electromagnetique
EP0159065A1 (de) * 1984-03-21 1985-10-23 Koninklijke Philips Electronics N.V. Verfahren zum Herstellen einer Sattelspule für eine Bildröhre und mit Sattelspulen ausgerüstetes Ablenksystem
EP0558274A1 (de) * 1992-02-24 1993-09-01 Murata Manufacturing Co., Ltd. Ablenkeinheit vom Satteltyp
US20080186121A1 (en) * 2005-09-08 2008-08-07 Sumida Corporation Coil Device, Composite Coil Device, and Transformer Device
CN103996515A (zh) * 2010-11-25 2014-08-20 乾坤科技股份有限公司 电感以及制造电感的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300544A (nl) * 1983-02-14 1984-09-03 Philips Nv Werkwijze voor het vervaardigen van een zadelvormige spoel.
NL8300543A (nl) * 1983-02-14 1984-09-03 Philips Nv Elektromagnetische afbuigeenheid.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167379A (en) * 1936-02-28 1939-07-25 Rca Corp Cathode ray tube deflecting device
US2949593A (en) * 1957-05-09 1960-08-16 Reynolds Metals Co Electrical coil formed from multilayer strip conductor
US3007087A (en) * 1958-06-04 1961-10-31 Gen Dynamics Corp Electromagnetic deflection coil
US3088200A (en) * 1960-11-10 1963-05-07 Dale H Birdsall Magnetic shaping process
US3234632A (en) * 1955-08-25 1966-02-15 Hazeltine Research Inc Method of manufacturing magnetic deflection yokes
US3396356A (en) * 1965-11-01 1968-08-06 Gen Electric Cross-wound open mesh coil
US3412354A (en) * 1963-02-18 1968-11-19 Westinghouse Electric Corp Adhesive coated electrical conductors
US3423706A (en) * 1966-10-28 1969-01-21 Atomic Energy Commission Multipole magnet having a sequentially shim stepped coil configuration
US3488541A (en) * 1966-04-06 1970-01-06 Rca Corp Geodesic electromagnetic deflection yoke

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167379A (en) * 1936-02-28 1939-07-25 Rca Corp Cathode ray tube deflecting device
US3234632A (en) * 1955-08-25 1966-02-15 Hazeltine Research Inc Method of manufacturing magnetic deflection yokes
US2949593A (en) * 1957-05-09 1960-08-16 Reynolds Metals Co Electrical coil formed from multilayer strip conductor
US3007087A (en) * 1958-06-04 1961-10-31 Gen Dynamics Corp Electromagnetic deflection coil
US3088200A (en) * 1960-11-10 1963-05-07 Dale H Birdsall Magnetic shaping process
US3412354A (en) * 1963-02-18 1968-11-19 Westinghouse Electric Corp Adhesive coated electrical conductors
US3396356A (en) * 1965-11-01 1968-08-06 Gen Electric Cross-wound open mesh coil
US3488541A (en) * 1966-04-06 1970-01-06 Rca Corp Geodesic electromagnetic deflection yoke
US3423706A (en) * 1966-10-28 1969-01-21 Atomic Energy Commission Multipole magnet having a sequentially shim stepped coil configuration

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878490A (en) * 1974-09-03 1975-04-15 Gen Electric Direct-wound, precision deflection yoke with adhesive coated core
FR2448786A1 (fr) * 1979-02-06 1980-09-05 Bauzhis Albertas Systeme de deviation electromagnetique
EP0159065A1 (de) * 1984-03-21 1985-10-23 Koninklijke Philips Electronics N.V. Verfahren zum Herstellen einer Sattelspule für eine Bildröhre und mit Sattelspulen ausgerüstetes Ablenksystem
EP0558274A1 (de) * 1992-02-24 1993-09-01 Murata Manufacturing Co., Ltd. Ablenkeinheit vom Satteltyp
US5446432A (en) * 1992-02-24 1995-08-29 Murata Mfg. Co., Ltd. Saddle type deflection coil
US20080186121A1 (en) * 2005-09-08 2008-08-07 Sumida Corporation Coil Device, Composite Coil Device, and Transformer Device
US7443278B2 (en) * 2005-09-08 2008-10-28 Sumida Corporation Coil device, composite coil device, and transformer device
CN103996515A (zh) * 2010-11-25 2014-08-20 乾坤科技股份有限公司 电感以及制造电感的方法

Also Published As

Publication number Publication date
DE2053926C3 (de) 1978-04-20
DE2053926B2 (de) 1977-09-08
NL6918204A (de) 1971-06-08
GB1318929A (en) 1973-05-31
NL160970C (nl) 1979-12-17
DE2053926A1 (de) 1971-06-09
JPS4927966B1 (de) 1974-07-23
NL160970B (nl) 1979-07-16

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