KR20010109417A - Core clamp structure of ferrite-core - Google Patents

Abstract

The present invention enables to accurately position a pair of ferrite cores wound with a vertical deflection coil to prevent deterioration of image quality due to assembly dispersion, and to improve the workability and productivity by suggesting a standard of assembly work. To provide a core clamp fastening structure of a ferrite core.

The core clamp fastening structure of the ferrite core is symmetrical left and right, and is combined into a coil separator in which a horizontal deflection coil is mounted on an inner circumferential surface, and a vertical deflection coil is wound on an outer circumferential surface by being coupled to an outer side of the coil separator. A ferrite core having a clamp groove having a predetermined depth and width formed at a position adjacent to each other and having an adjacent boundary, a core clamp fastened to the clamp groove of the ferrite core to exert a predetermined elastic support force, and a predetermined position of the clamp groove. It is formed in the comprising a display means for indicating the fastening position of the core clamp.

The core clamp fastening structure of the ferrite core according to the present invention constructed and operated as described above precisely couples a pair of ferrite cores provided on the surface of the coil separator, thereby preventing deterioration of image quality due to the dimensional distribution of the product. Since it is possible to further improve the product reliability of the device employing the cathode ray tube, for example.

In addition, since the assembly work is standardized, problems caused by fastening core clamps at different positions for each worker can be solved, thereby improving product assembly workability and productivity.

Description

Core clamp structure of ferrite core

The present invention relates to a core clamp fastening structure of a ferrite core, and more particularly, to ensure that the core clamp is securely fixed in position at the boundary surface of the ferrite core to prevent misconvergence on the screen due to a poor fastening of the ferrite core. It relates to a core clamp fastening structure.

Generally, the deflection yoke used in the cathode ray tube (CRT) of a TV receiver or a monitor has various forms such as a saddle toroidal type and a saddle-saddle type, and the electron beam scanned from the electron gun is used to screen the cathode ray tube. It serves to deflect accurately to the fluorescent film applied to the film.

As shown in FIG. 1, the deflection yoke has a pair of coil separators 110 which are symmetrical left and right and are integrated into one, and the coil separators 110 are horizontal deflection coils (not shown) and vertical which will be described later. The position of the deflection coil 101 can be accurately distinguished and can be electrically insulated from each other.

That is, a pair of horizontal deflection coils (not shown) for generating a horizontal deflection magnetic field for deflecting the electron beam in the horizontal direction is provided inside the coil separator 110, and vertical deflection for deflecting the electron beam in the vertical direction. The vertical deflection coil 101 which generates a magnetic field is wound.

In addition, a pair of ferrite cores 105, which are mounted to surround the vertical deflection coil 101 and formed of a magnetic material to reinforce the vertical deflection magnetic field generated by the vertical deflection coil 101, and the ferrite core 105 Core clamp 106 is fixed to the configuration.

In addition, the deflection yoke 100 causes a misconvergence phenomenon that deteriorates the image quality on the screen without scanning the electron beam in place due to mechanical error or its own characteristics, and the misconvergence of the coil separator 110 Correction is performed by a comma-free device (not shown) provided on the side 115.

The deflection yoke 100 configured as described above is mounted on the neck 115 of the cathode ray tube, and when a sawtooth pulse is applied to the horizontal deflection coil (not shown) and the vertical deflection coil 101, a magnetic field is generated based on Fleming's left hand law. Then, the red (R), green (G), and blue (B) electron beams emitted from the CRT electron gun are deflected by a predetermined angle to determine dice on the screen.

Here, in the conventional deflection yoke 100, the pair of ferrite cores 105 are clamp grooves 107 having a predetermined width and depth at positions adjacent to mutually adjacent boundary surfaces, as shown in FIG. Is formed, and the clamp groove 107 is fastened to the core clamp 106, which is an elastic body having a predetermined elastic force.

Therefore, the pair of ferrite cores 105 are elastically supported by the core clamps 106 fastened at equal intervals to maintain the coupled state.

However, in the assembling process of coupling the ferrite core 105, the operator disengages the core clamp 106 at a different position of the clamp groove 107 so that the dimensional distribution of the ferrite core 105 is not constant.

That is, since the operator clamps the core clamp 106 in different positions, the pair of ferrite cores 105 cannot be precisely coupled to each other, and a gap is formed between the upper and lower sides of the core clamp 106. Will occur.

Such a gap formed at the interface of the ferrite core 105 not only causes the magnetic field characteristics of the deflection yoke 100 to be unstable, but also causes a problem of distortion on the screen.

In addition, the operator can not determine whether the fastening the core clamp 106 in place during the fastening operation of the ferrite core 105 not only increases the product defect rate, but also needs to correct the position of the core clamp 106 according to the increase in the defective rate. Since the number of labor is also increased, there are many problems inherent in workability and productivity.

The present invention was created to solve the above-mentioned conventional problems, and an object of the present invention is to prevent the deterioration of image quality due to assembly dispersion by accurately positioning a pair of ferrite cores wound with a vertical deflection coil. In addition, the object of the present invention is to provide a core clamp fastening structure of a ferrite core that can improve workability and productivity by suggesting a standard of assembly work.

1 is a front view showing a general deflection yoke,

Figure 2 is an enlarged cross-sectional view "A-A" line of Figure 1 showing a conventional ferrite core fastening structure,

3 is a front view of a deflection yoke showing a fastening structure of a ferrite core according to the present invention;

Figure 4 is a partially cutaway perspective view of the deflection yoke showing the fastening structure of the ferrite core according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: deflection yoke 2: coil separator

3: neck portion 4: vertical deflection coil

10: ferrite core 10 ': interface

11: clamp groove 12: display means

12a, 12b: Reference groove 15: Core clamp

Core clamp fastening structure of the ferrite core according to the present invention for achieving the above object is a coil separator having a left and right symmetrical type coupled to one and a horizontal deflection coil is mounted on the inner peripheral surface;

A ferrite core coupled to an outer side of the coil separator, the vertical deflection coil being wound on an outer circumferential surface thereof, separated into left and right sides, and having a clamp groove having a predetermined depth and width at positions adjacent to each other;

A core clamp fastened to the clamp groove of the ferrite core to exert a predetermined elastic support force;

It is formed in a predetermined position of the clamp groove characterized in that it comprises a display means for indicating the fastening position of the core clamp.

A preferred feature of the present invention is that the display means is provided with a plurality of reference grooves having a predetermined depth at intervals proportional to the width of the core clamp on one side of the clamp groove.

Hereinafter, an embodiment of a core clamp fastening structure of a ferrite core according to the present invention will be described with reference to the accompanying drawings.

Figure 3 is a front view of the deflection yoke showing the fastening structure of the ferrite core according to the present invention.

As shown, the deflection yoke 1 has a pair of coil separators 2 which are symmetrical left and right and are integrated into one, and inside the coil separator 2 a horizontal deflection for deflecting the electron beam in the horizontal direction. A pair of horizontal deflection coils (not shown) for generating a magnetic field is provided, and a vertical deflection coil 4 for generating a vertical deflection magnetic field for deflecting the electron beam in the vertical direction is wound.

In addition, a pair of ferrite cores 10, which are mounted to surround the vertical deflection coil 4 and formed of a magnetic material to reinforce the vertical deflection magnetic field generated by the vertical deflection coil 4, are fixed to the core clamp 15. Coupling separator 2 is provided with a comma free device (not shown) for correcting the misconvergence on both sides of the neck portion (3).

Here, the ferrite core 10 substantially includes the features of the present invention, and by standardizing the mounting position of the core clamp 15, it is possible to reduce the product failure rate and improve the workability.

That is, as shown in FIG. 4, a clamp groove 11 in which the core clamp 15 is mounted is formed at a position adjacent to the interface 10 'of the pair of ferrite cores 10, which is in contact with each other. The clamp groove 11 is provided with a display means 12 for indicating the fastening position of the core clamp 15.

The display means 12 comprises a plurality of reference grooves 12a and 12b having a predetermined depth at intervals proportional to the width of the core clamp 15, and the display means 12 is a pair. The position of the ferrite core 10 is set on the clamp groove 11 so that the ferrite core 10 of the ferrite core 10 can be coupled in a state where the ferrite core 10 is exactly in contact with the interface 10 '.

Here, the reference grooves 12a and 12b of the display means 12 are formed on one side of the clamp groove 11 toward the boundary surface 10 'of the ferrite core 10, and the operator has a core clamp 15. The reference grooves 12a and 12b may be formed to have an acute angle toward the boundary surface 10 'so as to easily grasp the fastening position.

In addition, the display means 12 may be manufactured in various shapes as long as the display means 12 has a shape that can be easily identified by the operator, even if not a plurality of groove shapes having a predetermined depth.

Referring to the accompanying drawings the core clamp fastening process of the ferrite core according to the present invention as follows.

First, the bent plate spring core clamp 15 having a predetermined elastic support force is fastened to the clamp groove 11 formed at a position adjacent to the boundary surface 10 'of the pair of ferrite cores 10.

At this time, since the display means 12 is provided in the clamp groove 11, the core clamp 15 is fastened based on the display means 12.

That is, the display means 12 is provided with reference grooves 12a, 12b up and down at intervals proportional to the width of the core clamp 15, as shown in FIG. When the upper and lower edges of the core clamp 15 are fastened to coincide with the reference grooves 12a and 12b, the coupling of the ferrite core 10 is completed.

Therefore, by fastening the core clamp 15 at the same position for each operator by the display means 12, it is possible to standardize the magnetic field characteristics according to the assembly distribution of the core clamp 15.

On the other hand, the above-described embodiment has been described in one preferred embodiment of the present invention, the scope of the present invention is not limited to such, and can be changed as appropriate within the scope of the same idea. For example, the components, shapes, and structures shown in the embodiments of the present invention may be modified.

The core clamp fastening structure of the ferrite core according to the present invention constructed and operated as described above precisely couples a pair of ferrite cores provided on the surface of the coil separator, thereby preventing deterioration of image quality due to the dimensional distribution of the product. Since it is possible to further improve the product reliability of the device employing the cathode ray tube, for example.

In addition, since the assembly work is standardized, problems caused by fastening core clamps at different positions for each worker can be solved, thereby improving product assembly workability and productivity.

Claims (2)

A coil separator in which left and right symmetrical types are coupled to each other and a horizontal deflection coil is mounted on an inner circumferential surface thereof; A ferrite core coupled to an outer side of the coil separator, the vertical deflection coil being wound on an outer circumferential surface thereof, separated into left and right sides, and having a clamp groove having a predetermined depth and width at positions adjacent to each other; A core clamp fastened to the clamp groove of the ferrite core to exert a predetermined elastic support force; And a display means formed at a predetermined position of the clamp groove to indicate a fastening position of the core clamp. The method of claim 1, The display means is a core clamp of a ferrite core, characterized in that a plurality of reference grooves having a predetermined depth are formed on one side of the clamp groove with an interval proportional to the width of the core clamp.