JPH04126659U - deflection yoke - Google Patents

Abstract

(57) [Summary] [Purpose] To enable assembly and adjustment independently. [Structure] In the cathode ray tube 11, the outer diameter φ1 of the straight portion side 12A of the deflection yoke mounting portion 12 is equal to the outer diameter φ2 of the electron gun storage portion 13.
smaller. The horizontal deflection coil of the deflection yoke 1 has a rear bend portion that has an outer diameter φ of the electron gun housing portion 13 of the cathode ray tube 11.
a pair of inner horizontal deflection coils 2 with an inner diameter smaller than 2;
a, and the rear bend portion side is the outer diameter φ2 of the electron gun storage portion 13.
It has a larger inner diameter and is composed of an outer horizontal deflection coil 2b into which the pair of inner deflection coils 2a are removably fitted on the inner circumferential side thereof. The pair of inner horizontal deflection coils 2a is removed from the deflection yoke 1 that has been assembled and adjusted independently, and the pair of inner horizontal deflection coils 2a is attached to the deflection yoke mounting portion 12 of the cathode ray tube 11, and the remaining outer horizontal deflection coils 2 are attached.
b etc. are directly inserted from the electron gun storage section 13 side and integrated. [Effect] Productivity improves and work efficiency improves.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a deflection yoke, and in particular, the outer diameter of the straight part side of the deflection yoke mounting part is A deflection yoke suitable for mounting on a cathode ray tube whose outer diameter is smaller than the outer diameter of the electron gun housing. It is about the market.

0002

[Conventional technology]

In recent years, as the resolution of cathode ray tube display devices has increased, the horizontal deflection frequency has become higher. ing. Furthermore, heat generation in the deflection yoke due to this increase in horizontal deflection frequency is characteristic. It is a problem in terms of sex and safety.

0003 By the way, one way to reduce heat generation in the deflection yoke is to use a cathode ray tube network. There is a method of reducing the outer diameter of the deflection yoke and the inner diameter of the deflection yoke. According to this method, the deflection efficiency of the deflection yoke can be improved and the deflection current can be reduced. This suppresses heat generation in the deflection yoke. However, in cathode ray tubes, the lens opening of the electron gun If the diameter is made smaller, the focusing characteristics will deteriorate, so the outer diameter of the electron gun housing Leave it as it is, but make the outside diameter of the straight part of the deflection yoke mounting part smaller than the outside diameter of the electron gun housing part. It is forming a thick structure.

0004 Therefore, a deflection yoke that is assembled separately can be directly attached to a cathode ray tube configured in this way. It was not possible to insert it from the contact gun housing side to the deflection yoke mounting side.

[0005] For this reason, the deflection yoke is made up of multiple parts that can be divided, and each divided part The deflection yoke is attached to the cathode ray tube by assembling it in the deflection yoke attachment part. It was.

[0006] FIG. 5 schematically shows the state in which such a deflection yoke 51 is attached to the cathode ray tube 11. It is a schematic cross-sectional view. As shown in the figure, the cathode ray tube 11 has an outer diameter φ1 on the straight portion side of the deflection yoke mounting portion 12. It is formed smaller than the outer diameter φ2 of the electron gun housing section 13. In addition, the deflection yoke 51 A saddle-shaped horizontal deflection coil 52 and a toroidal vertical deflection coil wound around a core 53 constitute the The deflection coil 54 is insulated from the horizontal deflection coil 52 and the vertical deflection coil 54. The separators 55 are each configured in pairs. In addition, one of the pairs Only one part is shown in the figure, and the other part is omitted by broken lines.

[0007]

[Problem that the idea aims to solve]

With conventional deflection yokes, the deflection yoke is divided into multiple parts to attach it to the cathode ray tube. Assembly work is required to assemble each part in the deflection yoke mounting section, and It was not possible to directly attach a separately assembled deflection yoke.

[0008] Therefore, in addition to poor assembly workability of the deflection yoke, crosstalk adjustment and deflection yoke Convergence adjustment, distortion adjustment, etc. are performed by pasting a ferrite sheet on the inner peripheral surface. The drawback was that it required skill.

[0009] The purpose of this invention is that the deflection yoke can be assembled in advance, making each adjustment easy. and a deflection yaw having a straight portion that is at least smaller than the outer diameter of the electron gun housing. The present invention provides a deflection yoke that can be easily attached to a cathode ray tube having a deflection yoke.

0010

[Means to solve the problem]

In the deflection yoke of this invention, the outer diameter of the straight part side of the deflection yoke attachment part is the electron gun housing part. A cathode ray tube with a horizontal deflection coil and a vertical deflection coil attached to the cathode ray tube whose outer diameter is smaller than the outer diameter of the tube. In the deflection yoke provided with the horizontal deflection coil, at least the rear bend portion side is a pair of inner deflection coils having an inner diameter smaller than an outer diameter of the electron gun housing of the cathode ray tube; and at least the rear bend portion side has a larger diameter than the outer diameter of the electron gun storage portion, and and an outer deflection coil that removably engages the pair of inner deflection coils on the inner circumferential side of the It is composed of

[0011]

[Effect]

In the deflection yoke of this invention, the horizontal deflection coil has a cathode at least on the rear bend side. a pair of inner deflection coils having an inner diameter smaller than an outer diameter of the electron gun housing portion of the ray tube; It has an inner diameter larger than the outer diameter of the electron gun storage part, and the pair of inner deflection coils are arranged inside it. It is composed of a pair of outer deflection coils that are removably fitted to the circumferential side. For this reason, the deflection yoke allows you to predict the mounting position of each deflection coil on the coil separator. It can be assembled as a single deflection yoke by adjusting the And the deflection yoke? Then, remove only the inner deflection coil and attach it to the deflection yoke attachment part of the cathode ray tube. For example, remove the inner deflection coil and remove the deflection yoke from the electron gun housing side. The inner deflection coil and the outer deflection coil are inserted directly into the mounting part side, and the inner deflection coil and the outer deflection coil are fitted together. A deflection yoke is attached to the deflection yoke.

0012 In this way, since the deflection yoke is assembled independently, the deflection yoke to the cathode ray tube is In addition to ease of assembly work when installing This will improve the workability of adjustment work.

[0013]

【Example】

Hereinafter, this invention will be explained in more detail based on the embodiment shown in the drawings. In addition, this This invention is not limited thereby. Figure 1 illustrates a state in which a deflection yoke according to an embodiment of this invention is attached to a cathode ray tube. FIG. In the figure, 11 is a cathode ray tube, and the straight part side 12 of the deflection yoke mounting part 12 The outer diameter φ1 of A is smaller than the outer diameter φ2 of the electron gun storage portion 13. 1 is a deflection yoke, which includes an inner horizontal deflection coil 2a and an outer horizontal deflection coil 2b. and a core 3, a vertical deflection coil 4 and a respective pair of separators. ing. Note that in the figure, only one of each pair is shown, and one of the pairs is indicated by a broken line. is omitted.

[0014] As shown in FIGS. 1 and 2, the inner horizontal deflection coil 2a deflects the electrons of the cathode ray tube 11. It is a saddle-shaped coil made up of a molded winding without a bend-up part on the side of the gun storage part 13. The inner diameter of the rear bend portion 2e side is equal to the straight portion 1 of the deflection yoke mounting portion 12 of the cathode ray tube 11. It is formed smaller than the outer diameter φ1 on the 2A side. In addition, the inner horizontal deflection coil 2a The outer diameter of the rear bend portion 2e side is approximately equal to the outer diameter φ2 of the electron gun storage portion 13 side of the cathode ray tube 11. are equally formed.

[0015] The inner horizontal deflection coil 2a formed in this way is attached to the deflection yoke attachment part. 12 and is attached to the cathode ray tube 11 and fitted with the outer horizontal deflection coil 2b. It will be done.

[0016] As shown in FIGS. 1 and 3, the outer horizontal deflection coil 2b This is a saddle-shaped coil constructed from a molded winding having a loop section. and said outer horizontal The inner diameter of the deflection coil 2b is formed to be larger than the outer diameter φ2 of the electron gun storage section 13. Ru. Further, on the inner peripheral side of the outer horizontal deflection coil 2b, the inner horizontal deflection coil 2a is The dimensions of each part are determined so that the parts can be removably fitted together.

[0017] When the outer horizontal deflection coils 2b formed in this way are combined, cathodes are formed in the front and rear. A substantially cylindrical shape having an opening with an inner diameter larger than the outer diameter φ2 of the electron gun storage part 13 of the ray tube 11 Formed in the body.

[0018] The vertical deflection coil 4 is toroidally wound around the core 3 and is wound around the outer circumference of the separator 5. It is attached to the outer circumferential side of the side horizontal deflection coil 2b.

[0019] The deflection yoke 1 of the present invention first includes a pair of outer water pipes on the inner peripheral side of a pair of separators 5. Attach the flat deflection coil 2b while positioning it. Next, a pair of inner horizontal deflection coils are installed on the inner peripheral side of the pair of outer horizontal deflection coils 2b. Adjust the position of the cable 2a and fit it. At this time, the inner horizontal deflection coil 2a is The position is determined by the side horizontal deflection coil 2b and the outer horizontal deflection coil 2b. They are removably fitted. The vertical deflection coil 4 is placed on the outer circumferential side of the separator 5. are positioned and mounted and assembled as a single deflection yoke 1.

[0020] To attach the deflection yoke 1 assembled in this way to the cathode ray tube 11, first, Remove the pair of inner horizontal deflection coils 2a from the deflection yoke. and removed Each of the pair of inner horizontal deflection coils 2a is connected to the deflection yoke mounting portion 12 of the cathode ray tube 11. It is attached to the deflection yoke attachment part 12 so as to cover the outer periphery. Next, of the pair The deflection yoke 1 with the side horizontal deflection coil 2a removed is connected to the electron beam of the cathode ray tube 11. Insert directly from the gun storage section 13 side to the deflection yoke mounting section 12 side. and outside horizontal The inner horizontal deflection coil 2a is fitted onto the inner circumferential side of the deflection coil 2b.

[0021] The installation positions of each coil of the deflection yoke installed in this way are adjusted in advance and aligned. Therefore, crosstalk, convergence distortion, etc. are adjusted evenly. This improves adjustment workability.

[0022] In addition, in the example, the horizontal deflection coil was constructed by mold-wound. , a bobbin-wound one may also be used.

[0023] Furthermore, the vertical deflection coil is an example of a toroidal type, but a saddle type mold winding is also used. It is also possible to use winding or bobbin winding.

[0024]

[Effect of the idea]

According to the deflection yoke of this invention, at least the deflection yoke attachment part can be easily fixed. It cannot be installed on a cathode ray tube whose outer diameter of the straight part is smaller than the outer diameter of the electron gun housing. A deflection yoke suitable for A deflection yoke with improved losstalk, convergence, and distortion adjustment workability can be obtained. effective.

[Submission date] October 17, 1991

[Procedural amendment 2]

[Name of document to be amended] Specification

[Correction target item name] 0003

[Correction method] Change

[Correction details]

By the way, one method for reducing heat generation in the deflection yoke is to reduce the outer diameter of the cathode ray tube neck and the inner diameter of the deflection yoke. According to this method, the deflection efficiency of the deflection yoke can be improved and the deflection current can be reduced, so that heat generation in the deflection yoke can be suppressed. However, in a cathode ray tube, if the lens diameter is reduced to the electron gun lens aperture, the focus characteristics will deteriorate, so as shown in the figure , the outer diameter of the electron gun housing remains the same, and the outer diameter of the straight part of the deflection yoke mounting part is adjusted to the electron gun. It is formed smaller than the outer diameter of the storage section.

[Procedural amendment 3]

[Name of document to be amended] Specification

[Correction target item name] 0013

[Correction method] Change

[Correction details]

[0013]

【Example】

Hereinafter, this invention will be explained in more detail based on the embodiment shown in the drawings. Note that this invention is not limited to this. FIG. 1 is a schematic cross-sectional view illustrating a state in which a deflection yoke according to an embodiment of the invention is attached to a cathode ray tube. In the figure, reference numeral 11 denotes a cathode ray tube, and the outer diameter φ1 of the linear portion side 12A of the deflection yoke mounting portion 12 is formed to be smaller than the outer diameter φ2 of the electron gun storage portion 13. Reference numeral 1 denotes a deflection yoke, which is composed of respective pairs of an inner horizontal deflection coil 2a, an outer horizontal deflection coil 2b, a core 3, a vertical deflection coil 4, and a separator 5 . Note that in the figure, only one of each pair is illustrated, and one of the pairs is omitted by a broken line.

[Procedural amendment 4]

[Name of document to be amended] Specification

[Correction target item name] 0014

[Correction method] Change

[Correction details]

As shown in FIGS. 1 and 2, the inner horizontal deflection coil 2a is a saddle-shaped coil formed by a mold winding without a bend-up portion on the side of the electron gun housing 13 of the cathode ray tube 11. The inner diameter on the bend portion 2e side is slightly larger than the outer diameter φ1 on the straight portion 12A side of the deflection yoke mounting portion 12 of the cathode ray tube 11. Further, the outer diameter of the inner horizontal deflection coil 2a on the rear bend portion 2e side is approximately equal to the outer diameter φ 2 of the cathode ray tube 11 on the electron gun storage portion 13 side.

[Procedural amendment 5]

[Name of document to be amended] Specification

[Correction target item name] 0021

[Correction method] Change

[Correction details]

[0021] Since the mounting positions of the respective coils of the deflection yoke mounted in this manner are adjusted in advance and aligned, crosstalk, convergence , distortion, etc. are adjusted evenly, and adjustment workability is improved. be done.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view illustrating the mounting state of a deflection yoke according to this invention.

FIG. 2 is a perspective view of the inner horizontal deflection coil.

FIG. 3 is a perspective view of an outer horizontal deflection coil.

FIG. 4 is a connection diagram of the horizontal deflection coil according to the invention.

FIG. 5 is a schematic cross-sectional view illustrating a state in which a conventional deflection yoke is attached.

[Explanation of symbols]

1 Deflection yoke 2a Inner horizontal deflection coil 2b Outer horizontal deflection coil 3 core 4 Vertical deflection coil 5 Separator 11 Cathode ray tube 12 Deflection yoke attachment part 13 Electron gun storage section

[Procedural amendment]

[Submission date] October 17, 1991

[Procedural amendment 1]

[Name of document to be amended] Specification

[Name of item subject to amendment] Claim 1

[Correction method] Change

[Correction details]

1. A deflection yoke equipped with a horizontal deflection coil and a vertical deflection coil , which is attached to a cathode ray tube and whose outer diameter on the straight side side of the deflection yoke mounting section is smaller than the outer diameter of the electron gun storage section. The deflection coil includes a pair of inner deflection coils having an inner diameter smaller than an outer diameter of the electron gun housing of the cathode ray tube at least on the rear bend side, and a pair of inner deflection coils having an inner diameter larger than the outer diameter of the electron gun housing on at least the rear bend side. , a deflection yoke comprising an outer deflection coil detachably fitted to the pair of inner deflection coils on the inner peripheral side thereof. ──────────────────────────────────────────────── ───

[Procedural amendment]

[Submission date] October 17, 1991

[Procedural amendment 1]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 1

[Correction method] Change

[Correction details]

[Figure 1]

[Procedural amendment 2]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 5

[Correction method] Change

[Correction details]

[Figure 5] ──────────────────────────────────────────────── ───

[Procedural amendment]

[Submission date] October 17, 1991

[Procedural amendment 1]

[Name of document to be amended] Specification

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction details]

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view illustrating the mounting state of a deflection yoke according to this invention.

FIG. 2 is a perspective view of the inner horizontal deflection coil.

FIG. 3 is a perspective view of an outer horizontal deflection coil.

FIG. 4 is an example of a connection diagram of a horizontal deflection coil according to the invention.

FIG. 5 is a schematic cross-sectional view illustrating a state in which a conventional deflection yoke is attached.

FIG. 6 is a perspective view of a cathode ray tube.

[Explanation of symbols] 1 Deflection yoke 2a Inner horizontal deflection coil 2b Outer horizontal deflection coil 3 core 4 Vertical deflection coil 5 Separator 11 Cathode ray tube 12 Deflection yoke attachment part 13 Electron gun storage section

[Procedural amendment 2]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 6

[Correction method] Added

[Correction details]

[Figure 6]

Claims (1)

[Scope of utility model registration request] 1. A deflection yoke comprising a horizontal deflection coil and a vertical deflection coil to be attached to a cathode ray tube, the outer diameter of the linear part side of the deflection yoke mounting part being smaller than the outer diameter of the electron gun housing part, wherein the horizontal deflection coil The coils include a pair of inner deflection coils having an inner diameter smaller than an outer diameter of the electron gun housing of the cathode ray tube at least on the rear bend side, and a pair of inner deflection coils having an inner diameter larger than the outer diameter of the electron gun housing on at least the rear bend side; A deflection yoke comprising an outer deflection coil detachably fitted to the pair of inner deflection coils on the inner peripheral side thereof.