EP0098529B1 - Wickelvorrichtung zur Herstellung von Sattelspulen - Google Patents

Wickelvorrichtung zur Herstellung von Sattelspulen Download PDF

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Publication number
EP0098529B1
EP0098529B1 EP83106369A EP83106369A EP0098529B1 EP 0098529 B1 EP0098529 B1 EP 0098529B1 EP 83106369 A EP83106369 A EP 83106369A EP 83106369 A EP83106369 A EP 83106369A EP 0098529 B1 EP0098529 B1 EP 0098529B1
Authority
EP
European Patent Office
Prior art keywords
winding
radius
steps
winding device
increasing
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
Application number
EP83106369A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0098529A2 (de
EP0098529A3 (en
Inventor
Wilfred Bernhard
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 Deutschland GmbH
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz AG
Alcatel NV
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 Alcatel SEL AG, Standard Elektrik Lorenz AG, Alcatel NV filed Critical Alcatel SEL AG
Publication of EP0098529A2 publication Critical patent/EP0098529A2/de
Publication of EP0098529A3 publication Critical patent/EP0098529A3/de
Application granted granted Critical
Publication of EP0098529B1 publication Critical patent/EP0098529B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to a multi-part winding device according to the preamble of claim 1.
  • Saddle coils of a deflection unit are used to generate the magnetic fields which cause the electron beams to be deflected in color picture tubes.
  • Such saddle coils got the name from their saddle-shaped shape and are designed in such a way that they are self-convergent.
  • Self-converging saddle coils do not require auxiliary currents to achieve convergence. Convergence is achieved when the accelerated electrons of all three electron beams meet precisely at every point on the screen of the color picture tube during their deflection in the vertical and horizontal directions, due to the temporal change in the magnetic fields.
  • the winding device consists of at least two parts that can be assembled, the inner shape and the outer shape.
  • the inner shape bears the negative inner contour and the outer shape the negative outer contour of the saddle coil to be wound between the inner shape and the outer shape.
  • the inner shape of such a winding device is winding body only during the winding of the coil. As long as the saddle spool is still in the winding device, the saddle spool is made self-supporting by gluing and / or caking. Then it is removed from the inner and outer forms of the winding device, which are separated from one another, and assembled together with further coils on a plastic sleeve to form a deflection unit.
  • the circulation of the individual winding wires in the coil determines the shape and strength of the magnetic field generated by the coil. Even a slight deviation of the wire path from the target value influences the magnetic field and thus the deflection of the electron beams. This is noticeable as a convergence error on the screen.
  • the prerequisite for a usable winding technique is therefore a good reproducibility of the position of the individual wires in the saddle coil.
  • a greater reproducibility of the position and the course of the wires of the windings can be achieved by another known technique in which the wire windings are wound directly on a grooved winding sleeve. Since this fixed "winding body" made of plastic is not removed, the coil does not subsequently have to be glued or baked. The good reproducibility is guaranteed by inserting the wire in the precisely defined grooves of the winding sleeve over its entire length.
  • a disadvantage of this known technique is the higher costs, determined by the precise manufacture of the sleeve, and the long winding times.
  • a saddle coil wound with the device according to the invention is shown in perspective.
  • the winding strands 2 of the saddle coil run along the steps of the inner shape of the winding device (not shown in FIG. 1); the winding height 11, that is R a - R;, the winding strands increases as a result of the steps 1, as can be seen from FIG. 2.
  • the course of the steps is such that with fixed azimuth (p the radius R increases continuously with increasing Z and at constant Z the radius increases gradually with increasing ⁇ and gradually again for ⁇ > 90 ° decreases.
  • the cross section of the saddle coil shown in FIG. 2 is also indicated by dotted lines in FIG. 1. Further Cross sections perpendicular to the course of the winding strands would show corresponding gradations.
  • the gradation along the course of the winding strands is not equally strong everywhere.
  • the step can disappear at points where the direction of the winding strands changes significantly. This is mainly the case where the winding wire wraps around the pins inserted during winding, so the position of the wire is already defined with sufficient accuracy by the winding pins. So that the saddle spool can be removed from the device without the steps interfering, the finished saddle spool is lifted off the inner shape in the Z direction.
  • the Z direction is the direction parallel to the main axis of the color picture tube.
  • the steps 1 of the inner shape 5 of the device depicted in a small detail in FIG. 3 have grading surfaces 3 and graded surfaces 4 which are approximately perpendicular to the adjacent grading surfaces 3.
  • the winding strands 2 form-fit against the steps during winding.
  • FIGS. 5 and 6 show two cross sections through the device for winding saddle coils, FIG. 5 showing the section CD from FIG. 6 and FIG. 6 the section AB from FIG. 5.
  • the wire forming the saddle coil is wound into the winding space 8 between the inner mold 5 and the outer mold 6.
  • About the mounting plate 9 10 inner and outer shape are held together by means of the connecting pin.
  • the cover 7 is removed and, after loosening the connecting pin 10, the saddle coil together with the inner mold 5 is removed from the outer mold 6. Then the saddle coils and the stepped inner shape 5 are separated from one another in the Z direction.
  • FIG. 7 The perspective views of the outer shape in FIG. 7 and the inner shape in FIG. 8 serve to improve the clarity in addition to FIGS. 5 and 6.
  • saddle coils are to be wound in baking technology with high accuracy, good reproducibility and little waste.
  • the inner shape of the winding device is graduated in contrast to the known inner shapes. This ensures a precise position of the wires and increases reproducibility in production.
  • the wire When using the winding device according to the invention, the wire is wound into a device serving as a winding form and then baked.
  • the contour of the wrap shape is no longer continuous, but is stepped. It consists of a rotationally symmetrical outer part, on which the wire can slide well, and a stepped inner shape, from which the wire is held in the positions defined by the steps.
  • the inventive design of the stepped inner shape holds the wire in defined areas.
  • the result is an easily reproducible, self-converging, self-supporting saddle coil with a rotationally symmetrical outer and stepped inner contour.
  • the graduated inner part is designed according to the requirements of optimal convergence and maximum reproducibility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
EP83106369A 1982-07-07 1983-06-30 Wickelvorrichtung zur Herstellung von Sattelspulen Expired EP0098529B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823225289 DE3225289A1 (de) 1982-07-07 1982-07-07 Wickelvorrichtung zur herstellung von sattelspulen
DE3225289 1982-07-07

Publications (3)

Publication Number Publication Date
EP0098529A2 EP0098529A2 (de) 1984-01-18
EP0098529A3 EP0098529A3 (en) 1984-10-17
EP0098529B1 true EP0098529B1 (de) 1988-02-24

Family

ID=6167780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106369A Expired EP0098529B1 (de) 1982-07-07 1983-06-30 Wickelvorrichtung zur Herstellung von Sattelspulen

Country Status (6)

Country Link
US (1) US4763848A (es)
EP (1) EP0098529B1 (es)
JP (1) JPS5920946A (es)
CA (1) CA1201752A (es)
DE (2) DE3225289A1 (es)
ES (1) ES273364Y (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400886A (nl) * 1984-03-21 1985-10-16 Philips Nv Werkwijze voor het vervaardigen van een zadelvormige afbuigspoel voor een beeldweergeefbuis en afbuigsysteem met zadelvormige afbuigspoelen.
JP2752156B2 (ja) * 1989-05-30 1998-05-18 株式会社東芝 Ｍｒｉ装置用コイル部品の製造方法
DE4301305A1 (de) * 1993-01-20 1994-07-21 Nokia Deutschland Gmbh Sattelspule für Ablenksysteme von Kathodenstrahlröhren
US5640752A (en) * 1993-09-30 1997-06-24 Steiner; Robert E. Controlled adjustable manufacturing method for variable laminations used in electro-magnetic induction devices
US5604971A (en) * 1993-09-30 1997-02-25 Steiner; Robert E. manufacturing method for variable laminations used in electro-magnetic induction devices
BE1007859A3 (nl) * 1993-12-07 1995-11-07 Philips Electronics Nv Zadelvormige afbuigspoel, meerdraads gewikkeld, en wikkelmethode.
US6311389B1 (en) * 1998-07-01 2001-11-06 Kabushiki Kaisha Toshiba Gradient magnetic coil apparatus and method of manufacturing the same
JP2001346365A (ja) * 2000-06-01 2001-12-14 Sumitomo Heavy Ind Ltd リニアモータ用コイルユニットの単体コイル、その巻き取り、成型方法及び装置、及びコイルユニットの成形、製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US733633A (en) * 1898-09-01 1903-07-14 Gen Electric Form for winding armature-coils.
US2496913A (en) * 1944-05-30 1950-02-07 Rca Corp Mechanism for forming coils
GB627482A (en) * 1945-08-13 1949-08-10 Gen Electric Co Ltd Improvements in and relating to cathode-ray tubes
DE1113040B (de) * 1960-06-18 1961-08-24 Telefunken Patent Schablone zum Herstellen von Ablenkspulen fuer Kathodenstrahlroehren
ES342219A1 (es) * 1966-07-06 1968-08-16 Arco Societa Per L Ind Elettro Procedimiento para la formacion de un yugo de deflexion pa-ra cinescopios.
US3855694A (en) * 1970-11-27 1974-12-24 Philips Corp Method of winding deflection coils for picture display tubes
US3968566A (en) * 1971-02-27 1976-07-13 Licentia Patent-Verwaltungs-G.M.B.H. Method of forming a deflection yoke system
US3912182A (en) * 1973-08-21 1975-10-14 Sony Corp Apparatus for winding saddle-shaped deflection coil
US4093132A (en) * 1973-08-29 1978-06-06 International Business Machines Corporation Method of winding a magnetic deflection yoke

Also Published As

Publication number Publication date
DE3225289A1 (de) 1984-01-12
ES273364U (es) 1984-03-01
CA1201752A (en) 1986-03-11
US4763848A (en) 1988-08-16
EP0098529A2 (de) 1984-01-18
ES273364Y (es) 1984-10-01
JPH024977B2 (es) 1990-01-31
DE3375751D1 (en) 1988-03-31
JPS5920946A (ja) 1984-02-02
EP0098529A3 (en) 1984-10-17

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