• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention discloses a deflection yoke. The present invention includes a coil separator comprising a screen portion coupled to one surface of a cathode ray tube, a rear cover, and a neck portion extending from a center surface of the rear cover and coupled to an electron gun portion of the cathode ray tube; The core of the iron piece which is provided on the rear cover of the coil separator symmetrically about the neck portion to correct misconvergence on the screen, and the bobbin with the coil wound around the outer periphery and an extension piece having one end inserted into the bobbin and protruding from the bobbin. Comapri consisting of; It is integrally provided on the rear cover and comprises a slide engaging portion to prevent the flow in the insertion direction while being fitted by the slide insert from the outer side of the rear cover to the neck portion.
    公开号:KR20030061518A
    申请号:KR1020020002047
    申请日:2002-01-14
    公开日:2003-07-22
    发明作者:이영호
    申请人:삼성전기주식회사；
    IPC主号:
    专利说明:

    Deflection yoke
    [18] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke, and more particularly, to a deflection yoke for improving the assembly of a coma free for correcting misconvergence on a screen.
    [19] In general, a deflection yoke used in a cathode ray tube (CRT) of a TV receiver or a monitor is provided with a deflection yoke as a device for accurately deflecting three-color beams scanned from an electron gun to a fluorescent film coated on the screen surface of the cathode ray tube.
    [20] The deflection yoke is the most important element of the magnetic device of the cathode ray tube. In order to reproduce an electric signal transmitted in a time series as an image in the cathode ray tube, the electron beam emitted from the electron gun is deflected two-dimensionally on the image plane. The deflection yoke is the deflection of the electron beam.
    [21] 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.
    [22] Such a deflection yoke 4 has a pair of coil separators 10 which are symmetrical upward and downwardly coupled as shown in the drawing.
    [23] The coil separator 10 is provided to insulate the horizontal deflection coil 15 and the vertical deflection coil 16 and to assemble their positions to a sufficient degree. The screen separator 2 of the cathode ray tube 1 Neck portion 13 which is integrally formed from the screen portion 11 and rear cover 12 coupled to the rear side and the center surface of the rear cover 12 and coupled to the electron gun portion 3 of the cathode ray tube 1 Is formed.
    [24] 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.
    [25] On the other hand, the deflection yoke (4) is provided with a comma free 300 for correcting the misconvergence on the screen by correcting the coma aberration generated during the deflection action, the coma free 300 at this time is shown in FIGS. As shown, it is provided on the rear cover 12 of the coil separator 10.
    [26] That is, the rear cover 12 is provided with a coma prism 200 in a shape facing each other on both sides of the neck portion 13 of the cylindrical center, the comma 200 at this time is usually permalloy (iron) 20 to 25% of the nickel alloy) containing the core 210 formed to have an approximately ' ' shape, and a penetrating portion through which the extended end of the core 210 (hereinafter referred to as an 'extension piece') is inserted. It consists of a bobbin 220 having a rectangular parallelepiped shape having a hole, and a coil 230 wound around the outer periphery of the bobbin 220.
    [27] On the other hand, the Comapri 200 configured as described above is fixed by the coupling portion 300 formed on the rear cover 12 of the coil separator 10, the coupling portion 300 at this time is the bobbin 220 It is composed of a plurality of support pieces 310 are arranged in a form surrounding the periphery, and a hook 320 for applying a support force to the upper surface of the bobbin 220.
    [28] However, in the conventional deflection yoke as described above, the comapri is assembled at an accurate position in a direction perpendicular to the coupling portion as shown in FIG. 2, wherein there are few portions for guiding the comapri and the hooks are directly in contact with each other. There is a disadvantage that the assembly is very poor.
    [29] That is, since the operator has to place the coma prim accurately on the coupling portion in order to assemble the coma prim, the work time is increased, and there is an inconvenience in that the comapri is fastened on the coupling portion with a great assembly force.
    [30] In addition, after assembly, there is a disadvantage in that the plastic displacement of the coupling portion due to excessive assembly force is generated, so that the comapri flows, and this disadvantage is a cause of lowering the convergence correction performance of the comapri.
    [31] As such, in order to prevent the flow of comapri, conventionally, a process of applying a predetermined amount of adhesive so as not to cause assembly flow in the state of assembling comapri on the coupling part is added. There is a problem of lowering the productivity, resulting in a poor appearance of the deflection yoke by the applied adhesive.
    [32] The present invention has been made to solve the conventional problems as described above, an object of the present invention is to provide a deflection yoke to be easily combined by a slide method comma free is coupled on the rear cover.
    [1] 1 is a side view showing a typical cathode ray tube.
    [2] Figure 2 is a perspective view showing the main portion of the rear cover in the deflection yoke according to the prior art.
    [3] Figure 3 is a plan view showing a coupling state of the comapri according to the prior art.
    [4] Figure 4 is a perspective view showing the main portion of the rear cover in the deflection yoke according to the present invention.
    [5] Figure 5 is a side view showing the coupling direction of the comapri according to the present invention.
    [6] Figure 6 is a side view showing a bonding state of comapri according to the present invention.
    [7] <Explanation of symbols for the main parts of the drawings>
    [8] 1: cathode ray tube 2: screen surface
    [9] 3: electron gun 3a: electron gun
    [10] 4: deflection yoke 10: coil separator
    [11] 11 screen portion 12 rear cover
    [12] 13 neck portion 14 ferrite core
    [13] 15: horizontal deflection coil 16: vertical deflection coil
    [14] 20: Comapri 21: Core
    [15] 22: bobbin 23: coil
    [16] 30: slide coupling portion 31, 32: guide rail
    [17] 33: stopper 34: elastic hook
    [33] In order to achieve the above object, the deflection yoke according to the present invention comprises a screen portion coupled to one surface of the cathode ray tube and a neck portion extending from the center surface of the rear cover and the rear cover and coupled to the electron gun portion of the cathode ray tube. A coil separator; The core of the iron piece which is provided on the rear cover of the coil separator symmetrically about the neck portion to correct misconvergence on the screen, and the bobbin with the coil wound around the outer periphery and an extension piece having one end inserted into the bobbin and protruding from the bobbin. Comapri consisting of; And a slide engaging portion provided integrally on the rear cover and preventing the flow in the insertion direction while being inserted into the neck portion by slide insertion from the outside of the rear cover to the neck portion.
    [34] The slide coupling portion of the present invention comprises a pair of guide rails protruding from the rear cover at a wide corresponding interval of the bobbin and forming guide grooves opened in opposite directions; A stopper protruding from the rear cover proximate to the neck and contacting the bobbin front end of the comapri moving along the guide rail to limit the movement in the traveling direction; It is provided on the outside based on the guide rail and is characterized in that it consists of a hook that is elastically engaged to the bobbin rear end side of the coma free limited by the stopper to act a supporting force.
    [35] Hereinafter, a preferred embodiment of the deflection yoke according to the present invention will be described in detail with reference to the accompanying drawings.
    [36] Figure 4 is a perspective view showing the main portion of the rear cover in the deflection yoke according to the present invention, Figure 5 is a side view showing the coupling direction of the comapri according to the present invention, Figure 6 shows a coupling state of the comapri according to the present invention. Side view.
    [37] Hereinafter, a description will be given with reference to FIG. 1, and like reference numerals refer to like parts.
    [38] First, as shown in FIG. 1, the deflection yoke 4 includes a coil separator 10 having a substantially conical shape. The coil separator 10 at this time is one surface of the screen 2 of the cathode ray tube 1. Small diameter neck portion 11 and rear cover 12 coupled to each other, and a small diameter neck integrally extending from the center surface of the rear cover 12 and coupled to the electron gun portion 3a of the cathode ray tube 1. It consists of a part (13).
    [39] The coil separator 10 is provided with a horizontal deflection coil 15 that forms a horizontal deflection magnetic field on the inner surface by a power source applied from the outside, and a vertical deflection on the outer surface similarly forms a vertical deflection field by a power source applied from the outside. As the coil 16 is provided, these horizontal deflection coils 15 and the vertical deflection coils 16 are insulated from each other by the coil separator 10 and at the same time achieve a degree of position.
    [40] In addition, the outer surface of the coil separator 10 has a structure in which a ferrite core 14 of a magnetic material is provided to surround the vertical deflection coil 16 to reinforce the deflection magnetic field.
    [41] On the other hand, the rear cover 12 of the coil separator 10 is provided with a comma prism 30 for correcting coma aberration generated during deflection of the deflection yoke 4 to correct miss convergence on the screen.
    [42] The coma prim 20 is provided on the rear cover 12 in a shape facing each other on both sides of the neck 13, the coma prim 20 at this time has a substantially ' ' shape A core 21 formed of a permalloy (nickel alloy containing 20 to 25% of iron) material having a bobbin, and a bobbin 22 forming a through hole through which the protruding extension of the core 21 is inserted; The coil 23 is wound around the outer periphery of the bobbin 22.
    [43] This configuration is similar to the structure of the conventional deflection yoke. However, the present invention is characterized by improving the workability by allowing the comapri 20 to be fixed by slide insertion from the outer side of the rear cover 12 to the neck portion 13 side.
    [44] That is, as shown in FIGS. 5 and 6, the rear cover 12 is provided with a slide coupling portion 30 for fixing the comma pri 20, and the slide coupling portion 30 is a neck portion ( It is a structure provided on both sides of the rear cover 12 around the 13).
    [45] This slide coupling portion 30 is characterized in that the flow in the insertion direction is prevented while inducing the comapri 20 to be inserted by the slide insertion from the outer side of the rear cover 12 to the neck portion 13 side. As a general element, the detailed structure is roughly classified into a pair of guide rails 31 and 32, a stopper 33, and a hook 34.
    [46] The pair of guide rails 31 and 32 protrude in pairs on the rear cover 12 at widely proportional intervals of the bobbin 22, and are formed by forming guide grooves opened in opposing directions. . Both pairs of bobbins 22 are fitted to the pair of guide rails 31 and 32, and the coma pri 20 is fitted to the outside of the rear cover 12 along the guide rails 31 and 32. Slide movement to the neck portion 13 is possible.
    [47] On the other hand, the comapri 20 proceeds along the guide rails 31 and 32 is limited to the movement by the stopper 33, the stopper 33 at this time is close to the neck portion 13 It is a structure that protrudes integrally on the rear cover 12.
    [48] The stopper 33 protrudes to a height similar to or lower than the height of the bobbin 22, and one side of the stopper 33 contacts the front end of the bobbin 22 so that the comapri 20 is no longer necked. It serves to prevent progression to the side (13).
    [49] As described above, the comma prism 20 whose movement is restricted by the stopper 33 is fixed by the hook 34. The hook 34 at this time is the rear end of the bobbin 22 as shown in the drawing. It is elastically latched to the side to act as a supporting force.
    [50] The hook 34 is provided on the groove 12 'formed in a predetermined size on the rear cover 12, one end is connected to the rear cover 12 and the other end is positioned without interference on the groove 12'. It is possible to have a flexible displacement in the up, down direction in the configuration. Such a hook 34 is formed on the end of the end of the triangular piece projections upwards, the projections are engaged with the rear end of the bobbin 22 to act as a supporting force.
    [51] On the other hand, if the hook 34 in the above has a structural feature capable of exerting a fixing force on the rear end side of the coma prim 20, which proceeds along the guide rails 31, 32, its position and shape are various It may be modified.
    [52] Referring to Figures 5 and 6 assembling the comapri in the deflection yoke according to the present invention having such a configuration as follows.
    [53] First, the bobbin 22 can be fitted to the guide rails 31 and 32 in a state where the extension piece of the coma prism 20 is positioned on the side of the rear cover 12 so as to face the neck portion 13 side. Adjust
    [54] Subsequently, the comapri 20 is slid into the guide rails 31 and 32 and is pushed toward the neck 13.
    [55] At this time, the coma prim 20 is the front of the bobbin 22 is in contact with the stopper 33 formed close to the neck portion 13 is limited movement, and at the same time the rear end of the bobbin 22 hook 34 ) Is supported by elastic support.
    [56] In more detail, while the comapri 20 proceeds along the guide rails 31 and 32, the hook 34 is pressed by the bobbin 22, and the comapri 20 is formed. When it is in a fully advanced state, that is, the state in contact with the stopper 33, the force for pressing the hook 34 is removed, thereby achieving a position return to the restoring force. Therefore, the protrusion protruding from the end of the hook 34 is in contact with the side of the rear end of the bobbin 22 to act as a supporting force.
    [57] Accordingly, the comma pri 20 is stably prevented in the front, rear, left, right and up and down directions by the guide rails 31 and 32, the stopper 33 and the hook 34. .
    [58] 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.
    [59] According to the deflection yoke according to the present invention as described above, since the work can be accurately assembled even by a simple operation of inserting the comapri into the slide engaging portion, there is an advantage that the workability is improved.
    [60] In particular, since it does not require a separate adhesive coating process for preventing the flow of comapri as before, it is possible to improve the workability and productivity as well as to prevent contamination of the deflection yoke by the adhesive.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] A coil separator comprising a screen portion coupled to one screen surface of the cathode ray tube, a rear cover, and a neck portion extending from a center surface of the rear cover and coupled to an electron gun portion of the cathode ray tube;
    The core of the iron piece which is provided on the rear cover of the coil separator symmetrically about the neck portion to correct misconvergence on the screen, and the bobbin with the coil wound around the outer periphery and an extension piece having one end inserted into the bobbin and protruding from the bobbin. Comapri consisting of;
    A slide engaging portion provided integrally on the rear cover to prevent the flow in the insertion direction while being inserted into the neck portion by slide insertion from the outside of the rear cover to the neck portion;
    Deflection yoke, characterized in that comprises a.
    [2" claim-type="Currently amended] The method of claim 1, wherein the slide coupling portion
    A pair of guide rails protruding from the rear cover at widely corresponding intervals of the bobbin and forming guide grooves opened in opposite directions;
    A stopper protruding from the rear cover proximate to the neck and contacting the bobbin front end of the comapri moving along the guide rail to limit the movement in the traveling direction;
    A hook provided on an outer side of the guide rail and elastically engaged to the bobbin rear end side of the comapri restricted by the stopper to act as a supporting force;
    Deflection yoke, characterized in that consisting of.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-01-14|Application filed by 삼성전기주식회사
    2002-01-14|Priority to KR1020020002047A
    2003-07-22|Publication of KR20030061518A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020020002047A|KR20030061518A|2002-01-14|2002-01-14|Deflection yoke|
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