JPH02124646U

JPH02124646U -

Info

Publication number: JPH02124646U
Application number: JP3466889U
Authority: JP
Priority date: 1989-03-27
Filing date: 1989-03-27
Publication date: 1990-10-15
Anticipated expiration: 2004-03-27
Also published as: JPH0722846Y2

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の第１実施例に係り
、第１図は偏向磁界補正装置及び支持突起近傍の
斜視図、第２図は支持突起に偏向磁界補正装置を
装着した状態を横断面として示すコイルボビンの
部分背面図、第３図は本考案の第２実施例を示し
、支持突起に偏向磁界補正装置を装着した状態を
横断面として示すコイルボビンの部分背面図、第
４図は本考案の第３実施例を示し、支持突起に偏
向磁界補正装置を装着した状態を横断面として示
すコイルボビンの部分背面図、第５図乃至第８図
は従来技術を示し、第５図は偏向ヨーク装置の背
面図、第６図は偏向磁界補正装置及び支持突起近
傍の斜視図、第７図は補正磁界を説明する動作説
明図、第８図は画面にミスコンバージエンスが発
生している状態を示す説明図である。１……コイルボビン、４……水平偏向コイル、
６……垂直偏向コイル、２２，３２，４２……支
持突起、２２Ａ，３２Ａ，４２Ａ……スライド溝
、２２Ｂ，３２Ｂ……係合穴（係合受部）、２３
，３３，４３……偏向磁界補正装置、２４，３４
，４４……コア、２６，３６，４６……補正コイ
ル、２４Ｄ，３４Ｄ……係合爪（係合部）、４２
Ｂ……係合爪（係合受部）、４４Ｄ……係合凹部
（係合部）。 Figures 1 and 2 relate to the first embodiment of the present invention, with Figure 1 being a perspective view of the deflection magnetic field correction device and the vicinity of the support protrusion, and Figure 2 showing the state in which the deflection magnetic field correction device is attached to the support protrusion. FIG. 3 is a partial rear view of the coil bobbin shown as a cross section, and FIG. A partial rear view of a coil bobbin showing the third embodiment of the present invention and showing a state in which a deflection magnetic field correction device is attached to a support protrusion as a cross section, FIGS. 5 to 8 show the prior art, and FIG. Figure 6 is a rear view of the yoke device, Figure 6 is a perspective view of the deflection magnetic field correction device and the vicinity of the support protrusion, Figure 7 is an operation explanatory diagram explaining the correction magnetic field, and Figure 8 is a state where misconvergence occurs on the screen. FIG. 1...Coil bobbin, 4...Horizontal deflection coil,
6... Vertical deflection coil, 22, 32, 42... Support projection, 22A, 32A, 42A... Slide groove, 22B, 32B... Engagement hole (engagement receiving part), 23
, 33, 43...deflection magnetic field correction device, 24, 34
, 44...core, 26, 36, 46...correction coil, 24D, 34D...engaging claw (engaging portion), 42
B... Engagement claw (engagement receiving part), 44D... Engagement recess (engagement part).

Claims

[Scope of utility model registration request]

a coil bobbin having a front end enlarged part and a rear end enlarged part and mounted on the neck part of the picture tube; and a deflection magnetic field provided on the coil bobbin for deflecting the electron beam output from the neck part of the picture tube. a horizontal deflection coil and a vertical deflection coil that generate
a pair of support protrusions that are erected to face the enlarged front end portion or the enlarged rear end portion of the coil bobbin, and have a storage space between the inner facing surfaces and slide grooves on each of the inner facing surfaces; and a central mounting portion. and a deflection magnetic field correction device consisting of a U-shaped core with legs protruding from both ends of the core and a correction coil wound around the outer periphery of the central attachment portion, the deflection magnetic field correction device comprising a U-shaped core with legs protruding from both ends of the core. In the deflection yoke device in which the legs slide in the slide grooves and are accommodated in the housing space, the legs of the core are provided with engaging portions, and the engaging portions slide in the slide grooves. A deflection yoke device characterized in that it is configured to include an engagement receiving portion that engages with the user.