JPS6350439U

JPS6350439U -

Info

Publication number: JPS6350439U
Application number: JP14451586U
Authority: JP
Priority date: 1986-09-20
Filing date: 1986-09-20
Publication date: 1988-04-05

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例を示す永久磁
石の斜視図、第２図は同正面図、第３図は回転さ
せた状態の永久磁石の正面図、第４図は第２の実
施例を示す同斜視図、第５図は従来の偏向ヨーク
の斜視図、第６図はダイナミツク差動コイルの概
略構成図、第７図は二次巻線の状態を示す回路図
、第８図は永久磁石と可飽和コアとの関係を示す
斜視図である。１……永久磁石、２……可飽和コアに対向する
面、３……反対側の面、４……係合部、６……調
整部、５０……偏向ヨーク、５２……コア、５３
……垂直偏向コイル、５４……水平偏向コイル、
５７……一次巻線、５８……可飽和コア、６０…
…並列枝路、６１……二次巻線、φＭ……バイア
ス磁束。なお、図中、同一符号は同一または相当
部分を示す。 Fig. 1 is a perspective view of a permanent magnet showing the first embodiment of this invention, Fig. 2 is a front view of the same, Fig. 3 is a front view of the permanent magnet in a rotated state, and Fig. 4 is a perspective view of the permanent magnet showing the first embodiment of the invention. 5 is a perspective view of a conventional deflection yoke, FIG. 6 is a schematic configuration diagram of a dynamic differential coil, FIG. 7 is a circuit diagram showing the state of the secondary winding, and FIG. 8 is a perspective view showing the embodiment. The figure is a perspective view showing the relationship between a permanent magnet and a saturable core. DESCRIPTION OF SYMBOLS 1... Permanent magnet, 2... Surface facing the saturable core, 3... Opposite surface, 4... Engaging portion, 6... Adjusting portion, 50... Deflection yoke, 52... Core, 53
...Vertical deflection coil, 54...Horizontal deflection coil,
57...Primary winding, 58...Saturable core, 60...
...Parallel branch, 61...Secondary winding, φM...Bias magnetic flux. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A dynamic differential coil device in which a pair of horizontal deflection coils are connected in parallel to a horizontal deflection power source, and a pair of vertical deflection coils are arranged on a side surface of a core of a deflection yoke connected in series to a vertical deflection power source,
This coil device includes a permanent magnet that applies a bias magnetic flux to a pair of saturable cores around which a primary winding and a secondary winding are wound, and the pair of primary windings are connected in series to the pair of horizontal deflection coils. an adjusting section is inserted into each parallel branch so as to be connected to the permanent magnet, the secondary windings are connected in anti-series, and the adjusting section is connected in series with the vertical deflection coil to adjust the bias magnetic flux to the permanent magnet. An engaging portion for rotating the permanent magnet is formed on a surface of the permanent magnet opposite to the surface facing the saturable core, and supports the permanent magnet by covering the permanent magnet from the outside. A dynamic differential coil device in which a position of a case corresponding to the above-mentioned engaging portion is open.