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Deflection coil and its making method

A technology of deflection yoke and manufacturing method, which is applied to the manufacture of magnetic deflection devices, electrode devices, and related components, and can solve the problems of being sandwiched between two plate-shaped ribs 1d, damage to the starting end of winding 2s, and assembling operations of deflection yokes Increase and other issues

Inactive Publication Date: 2005-02-23
VICTOR CO OF JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] like Figure 16 As shown, when the two bearing housing halves 1H are assembled together to accommodate a pair of horizontal deflection coils 2 on the inner side of the bearing housing 1, since the winding starting end 2s is close to the plate rib 1d, there is a winding starting end 2s Possibility of being sandwiched between two plate ribs 1d
In addition, even if the winding starting end 2s is not caught between the plate-shaped ribs 1d, the plate-shaped ribs 1d may damage the winding starting end 2s, thereby causing defects.
[0009] In order to solve the above-mentioned problem, the worker who assembles the deflection yoke distances the winding starting end 2s from the plate-shaped rib 1d, that is, performs so-called forming processing, but this increases the assembly work of the deflection yoke.
In addition, even if the forming process is performed, the above-mentioned problems cannot be solved fundamentally.

Method used

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  • Deflection coil and its making method
  • Deflection coil and its making method
  • Deflection coil and its making method

Examples

Experimental program
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Effect test

no. 1 approach

[0037] First, an example of the overall configuration of the deflection yoke of the present invention will be described. exist Figure 5 Among them, the deflection coil forms one side ( Figure 5 The lower side in the middle) has a larger diameter, while the other side ( Figure 5 The upper side of the middle) funnel-shaped with a smaller diameter. Among them, the larger diameter part is the screen side of the cathode ray tube, and the smaller diameter part is the journal side. Bearing housing 1 is made of resin such as denatured PPE (polyphenylene ether) or PP (polypropylene). Flanges 1a, 1b are formed on the small-diameter side and the large-diameter side of the bearing housing 1, respectively.

[0038] A pair of saddle-shaped horizontal deflection coils 20' are installed on the inner side of the bearing housing 1, and a pair of saddle-shaped vertical deflection coils 3 are installed on the outer side. The bearing housing 1 keeps the horizontal deflection coils 20' and t...

no. 2 approach

[0061] In the first embodiment described above, the bent portion 20d3 was used as a method of increasing the resistance when the wire is peeled off, but other methods may also be used. Figure 10 The horizontal deflection coil 21' of the second embodiment is partially shown. The horizontal deflection coil 21' is in a state after stripping the wires. The shape of the horizontal deflection coil 21' and Figure 12 The horizontal deflection coil 2 shown is the same. The horizontal deflection coil 21' is constituted by a small-diameter portion 21a, a large-diameter portion (not shown), and two side portions 21c, and a central portion is constituted by a window portion 21d. exist Figure 10 Among them, 21f is the ending end of the winding, and 21s' is the starting end of the winding from which the wire has been stripped. An adhesive tape 60 is wound around one side portion 21c.

[0062] The starting end of the winding before stripping the wire is called 21s. When pulling the wi...

no. 3 approach

[0064] Figure 11 The horizontal deflection coil 22' of the third embodiment is partially shown. The horizontal deflection coil 22' is in a state after stripping the wires. The shape of the horizontal deflection coil 22' is the same as Figure 12 The horizontal deflection coil 2 shown is the same. The horizontal deflection coil 22' is composed of a small-diameter portion 22a, a large-diameter portion (not shown), and two side portions 22c, and a central portion is composed of a window portion 22d. exist Figure 11 Among them, 22f is the ending end of the winding, and 22s' is the starting end of the winding from which the wire has been stripped. Such as Figure 11 As shown, a recessed portion 70 is formed where it is desired to stop wire stripping. The function of the concave portion 70 is also to increase the resistance when the wire is stripped.

[0065] The recessed portion 70 can be easily formed by placing a pin during the winding process or after the winding is comp...

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PUM

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Abstract

Provided is a deflection yoke with a lead-out wire which is not pinched between insulation ribs, easy to assemble, enabled to restrain the generation of defect. A horizontal deflection coil 20' is composed of a small diameter part 20a, a large diameter part 20b, two side parts 20c, and a window part 20d surrounded by the above parts. A wind start wire 20s' is led out from the side part 20c, and a wind finish wire 20f is led out from the small diameter part 20a. The wind start wire 20s' is located at the position extending from a small diameter side end part 20d1 of the window part 20d at the side parts 20c to the large diameter side which is distant from other parts, and led out from a curved part 20d3.

Description

technical field [0001] The present invention relates to a deflection yoke that is easy to assemble and less likely to cause defects and a manufacturing method thereof, in particular to a deflection yoke that can facilitate assembly and avoid defects by improving a horizontal deflection yoke and a manufacturing method thereof. Background technique [0002] The deflection yoke has a pair of horizontal deflection coils, a pair of vertical deflection coils, and a spacer for insulating the horizontal deflection coils and the vertical deflection coils from each other. The horizontal deflection coil is installed on the inner side, and the vertical deflection coil is installed on the outer side of the bearing housing. Figure 12 It is a perspective view showing a general saddle-type horizontal deflection coil 2 . Such as Figure 12 As shown, the horizontal deflection coil 2 is composed of a small-diameter portion 2a, a large-diameter portion 2b, and a side portion 2c connecting the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H75/36H01J9/236H01J29/76
Inventor 宫下明彦杉本哲也香山和夫森本桂司
Owner VICTOR CO OF JAPAN LTD
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