Deflection yoke

专利摘要:
PURPOSE: A deflection yoke is provided to easily check whether or not the inner arm is attached even when the deflection yoke is completely assembled. CONSTITUTION: A deflection yoke comprises a coil separator(10) having a screen portion(11) with a larger diameter, a neck portion(13) with a smaller diameter and horizontal and vertical deflection coils mounted on inner and outer surfaces of the coil separator; a plurality of inner arms(30) attached, at constant intervals, to the outer surface between the neck portion and the screen portion of the coil separator, and which correct pin magnetic fields produced by the deflection coils into a barrel magnetic field; and a display window(21) arranged on the outer surface of the coil separator, and which permits a worker to easily check whether or not the inner arms are attached.
公开号:KR20030061508A
申请号:KR1020020002035
申请日:2002-01-14
公开日:2003-07-22
发明作者:기관서；이정훈
申请人:삼성전기주식회사；
IPC主号:

专利说明:

Deflection yoke
[14] The present invention relates to a deflection yoke employed in a cathode ray tube, and more particularly, to an improved deflection yoke so as to easily check the presence or absence of an inner arm of a coil separator.
[15] Generally, the deflection yoke used in the cathode ray tube (CRT) of a TV receiver or monitor is provided with a deflection yoke to precisely deflect the three-color beams scanned from the electron gun to the fluorescent film coated on the screen surface of the cathode ray tube. The yoke is one of the most important elements of the cathode ray tube magnetic device. It acts to deflect the electron beam emitted from the electron gun so that an electric signal transmitted in time series can be reproduced as an image on the cathode ray tube screen.
[16] FIG. 1 is a side view showing a typical cathode ray tube, and as shown therein, the deflection yoke 4 is positioned at the electron gun portion 3 of the cathode ray tube 1 and scans an RGB electron beam scanned from the electron gun 3a on the screen surface 2. ) To the fluorescent film applied to the.
[17] The deflection yoke 4 has a pair of coil separators 10, which are symmetrical upward and downward, as shown in the drawing, and are coupled to one bar. The coil separator 10 has a horizontal deflection coil 15 and a vertical deflection coil. Insulating the 16 and at the same time assembling their positions, the screen portion 11 and the rear cover 12 coupled to the rear side of the screen surface 2 of the cathode ray tube 1 and It is formed of a neck portion 13 which is integrally formed from the center surface of the rear cover 12 and coupled to the electron gun portion 3 of the cathode ray tube 1.
[18] The inner and outer circumferential surfaces of the coil separator 10 are provided with horizontal deflection coils 15 and vertical deflection coils 16 for forming a horizontal deflection magnetic field and a vertical deflection magnetic field by power applied from the outside. In addition, the coil separator 10 is provided on the outer circumferential surface, that is, to surround the vertical deflection coil 16, so that the ferrite core 14 is configured to reinforce the vertical magnetic field.
[19] The coil separator 10 as described above includes an inner arm that is a kind of iron piece in the middle portion of the outer circumferential surface.
[20] 2 is a perspective view illustrating a coil separator in a deflection yoke according to the related art.
[21] As shown in the drawing, the coil separator 10 is generally provided in left and right symmetrical shapes to be integrally coupled to each other, and the inner arms 300 are respectively provided at the middle portions of the outer peripheral surfaces corresponding to each other.
[22] The inner arm 300 is generally installed at equal intervals of 180 degrees on the outer circumferential surface of the coil separator 10 in order to satisfy the convergence characteristics by forming a strong barrel magnetic field through the formation of a magnetic field.
[23] Here, the inner arm 300 generally uses a cold rolled silicon steel sheet, and corrects the distortion of the image by converting the vertical magnetic field formed by the vertical deflection coil 16 into a strong barrel magnetic field. convergence) feature.
[24] In particular, the inner arm 300 is installed on the coil separator 10 closer to the electron gun 3a than on the screen 2 side with respect to the cathode ray tube 1, which is an E / W distortion among the characteristics of the screen. To reduce, a pin-type magnetic field must be generated toward the screen 2, whereas the barrel-type magnetic field must be formed on the electron gun 3a side in order to enhance the characteristics of convergence. It is installed biased toward the electron gun 3a side.
[25] The inner arm 300 is fitted to the mounting groove 200 formed at a predetermined depth in the middle of the coil separator 10 to be fixed by an adhesive and a tape.
[26] In more detail, the conventional inner arm 300 is usually manufactured in a plate shape having a rectangular shape, and has an adhesive (not applied) in a state of being inserted into a mounting groove 200 formed at an intermediate portion of the coil separator 10. And a tape (not shown) having an area larger than that of the inner arm 300. In this case, the mounting groove 200 is manufactured in proportion to the size of the inner arm 300.
[27] However, the conventional deflection yoke 4 has a disadvantage in that it is not possible to check whether the inner arm 300 is attached when the assembly is completed.
[28] That is, in the assembling process, the deflection yoke 4 is often assembled without the inner arm 300 attached by a worker's mistake. In this case, a method of confirming whether the inner arm 300 is attached is determined. Inevitably there is a problem in that the deflection yoke 4 must be dismantled.
[29] The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a deflection yoke that can easily check whether the inner arm is attached even when the deflection yoke is fully assembled.
[1] 1 is a side view showing a typical cathode ray tube.
[2] Figure 2 is a perspective view of the coil separator in the deflection yoke according to the prior art.
[3] 3 is a perspective view of the coil separator in the deflection yoke according to the present invention.
[4] Figure 4 is a cross-sectional view showing a state in which the inner arm is attached to the deflection yoke according to the present invention.
[5] <Explanation of symbols for the main parts of the drawings>
[6] 1: cathode ray tube 2: screen surface
[7] 3: electron gun 3a: electron gun
[8] 4: deflection yoke 10: coil separator
[9] 11 screen portion 12 rear cover
[10] 13 neck portion 14 ferrite core
[11] 15: horizontal deflection coil 16: vertical deflection coil
[12] 20: mounting groove 21: display window
[13] 30: inner arm
[30] In order to achieve the above object, the deflection yoke according to the present invention has a large diameter screen portion and a small diameter neck portion coupled to the screen surface side and the electron gun portion of the cathode ray tube, and a conical coil separator in which a deflection coil is provided inside and outside. And a plurality of inner arms attached to the outer surface between the neck portion and the screen portion of the coil separator at equal intervals to barrel-magnetize the pin magnetic field through the deflection coil, and formed on the outer surface of the coil separator which is a position to which the inner arm is attached. It is characterized in that it comprises a display window that is a through groove of a predetermined size to check the mounting of the inner arm.
[31] The coil separator of the present invention is characterized by forming a mounting groove into which the inner arm is fitted, and allowing a display window to be formed on the mounting groove.
[32] Hereinafter, a preferred embodiment of the deflection yoke according to the present invention will be described in detail with reference to the accompanying drawings.
[33] 3 is a perspective view illustrating a coil separator in a deflection yoke according to the present invention, and FIG. 4 is a cross-sectional view illustrating a state in which an inner arm is attached to the deflection yoke according to the present invention. Hereinafter, the same components will be described with reference to FIG. 1.
[34] First, as shown in FIG. 1, the deflection yoke 4 is positioned in the electron gun section 3 of the cathode ray tube 1 to deflect the electron beam scanned from the electron gun 3a toward the screen 2 side of the cathode ray tube 1. The deflection yoke (4) is a deflection coil for deflecting the electron beam scanned from the electron gun 3a of the cathode ray tube 1 to the inner and outer surfaces of the coil tube separator 10 of the fallopian tube in a horizontal and vertical direction. A horizontal deflection coil 15 and a vertical deflection coil 16 are provided.
[35] In addition, the vertical deflection coil 16 is configured to be wrapped by the ferrite core 14 on the outside thereof, wherein the vertical deflection coil 16 is formed to have a structure that is wound over the inner and outer peripheral surfaces of the ferrite core 14. do.
[36] Meanwhile, the coil separator 10 is conical in shape and has a screen portion 11 provided on the screen 2 side of the cathode ray tube 1, and a neck portion 13 coupled to the electron gun portion 3 of the cathode ray tube 1. Is provided, the mounting groove 30 is formed to have one or more inner arms 30 in the middle portion of the outer surface connecting the screen portion 12 and the neck portion (13).
[37] At this time, the inner arm 30 is fitted to the mounting groove 20 is fixed by the adhesive and the tape (t).
[38] This configuration is similar to the structure of the conventional deflection yoke. However, the present invention is characterized in that it is possible to easily check whether the inner arm is attached even when the deflection yoke is fully assembled.
[39] That is, as shown in FIGS. 3 and 4, the coil separator 10 has a display window 21, which is a groove penetrating a predetermined size, on a target surface to which the inner arm 30 is in wide contact with each other, and at this time, the size of the display window 21. Is formed in a range that does not affect the attachment state of the inner arm 30 in a substantially rectangular shape.
[40] The display window 21 is formed on the mounting groove 20 of the coil separator 10 to which the inner arm 30 is fitted. In this case, the display window 21 is larger than the mounting groove 20. It is molded to have a small size.
[41] The display window 21 as described above may be integrally formed during injection molding of the coil separator 10 or may be formed using a separate tool.
[42] Meanwhile, the display window 21 may be molded in various shapes as long as the display window 21 has a structural feature that visually confirms whether the inner arm 30 is attached to the inner side of the coil separator 10.
[43] The deflection yoke according to the present invention made as described above has an inner arm through the display window 21 formed at equal intervals on the main surface between the neck portion 13 and the screen portion 11 of the coil separator 10 in a fully assembled state. The presence or absence of attachment of 30) can be easily confirmed.
[44] That is, when the inner arm 30 is attached to the coil separator 10, a part of the inner arm 30 can be confirmed through the display window 21, so that the operator can easily check the attachment state. .
[45] As such, the present invention enables the operator to easily determine whether the inner arm 30 is attached without disassembling the deflection yoke.
[46] On the other hand, the above-described embodiment is merely described one preferred embodiment of the present invention, the scope of application 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 shape and structure of each component shown in the embodiment of the present invention can be modified.
[47] As described above, according to the deflection yoke according to the present invention, the display arm having a predetermined size is formed in the mounting groove of the coil separator on which the inner arm is mounted. Since it can be confirmed, there is an advantage to improve the quality inspection process of the product.

权利要求:
Claims (2)
[1" claim-type="Currently amended] A conical coil separator having a large diameter screen portion and a small diameter neck portion coupled to the screen surface side and the electron gun portion of the cathode ray tube, the deflection coils being provided to the inner and outer surfaces;
A plurality of inner arms which are attached to the outer surface between the neck portion and the screen portion of the coil separator at equal intervals and which barrel magnetic field the pin magnetic field through the deflection coil;
A display window formed on an outer surface of the coil separator, which is the position at which the inner arm is attached, and a through groove having a predetermined size for checking whether the inner arm is mounted;
Deflection yoke, characterized in that consisting of.
[2" claim-type="Currently amended] 2. The deflection yoke according to claim 1, wherein the coil separator forms a mounting groove into which the inner arm is fitted, and a display window is formed on the mounting groove.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-01-14|Application filed by 삼성전기주식회사

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2002-01-14|Priority to KR1020020002035A

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2003-07-22|Publication of KR20030061508A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020020002035A|KR20030061508A|2002-01-14|2002-01-14|Deflection yoke|