• 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:
    PURPOSE: A device for grounding and securing shield case is provided to reduce the number of parts and cost through grounding of electronic frequency screening shield case, which wraps around cathode ray of tube(CRT) and its video shield, by securing it to the shield case's grounding plate and securing rear case's shield case. also to greatly improve the operation process by securing the grounding plate, which grounds CRT's video shield and the shield case that wraps around CRT, in the inside of the shield case and to the rear case. CONSTITUTION: A device for grounding and securing shield case is composed of attachment, securing, screening, and protection. Main print circuit plate(3) is attached to the bottom plate(2), which is secured on the front case(1). CRT(5) is secured on the front case by a belt form of bracket(4) that is placed on the outside. Video shield(7) screens electronic frequencies by wrapping CRT and video PCP(6). Coil(8) removes the remaining magnetic field that is locked up in CRT. Shield case(9) wraps around CRT and main print circuit plate in order to screen the electronic frequencies emitted by them. Grounding plate(11) is secured on the shield case and grounds the video field. Rear case(10) consolidates with the front case and protects the internal parts.
    公开号:KR20000056194A
    申请号:KR1019990005279
    申请日:1999-02-13
    公开日:2000-09-15
    发明作者:허순행；한정선
    申请人:윤종용；삼성전자 주식회사；
    IPC主号:
    专利说明:

    Ground and fixing apparatus of shield case
    The present invention relates to a grounding and fixing device of a shield case, and more particularly, to surround a cathode ray tube (CRT) such as a monitor to shield the emission of harmful electromagnetic waves generated from the cathode ray tube. The present invention relates to a grounding and fixing device of a shielding case which can be grounded and fixed without using a separate fastening member when grounding and fixing a shielding case for electromagnetic wave shielding.
    1 is a schematic exploded perspective view of a monitor equipped with a shield case.
    As shown, a main printed circuit board on which various circuit parts such as transistors (TR) are mounted on a front case (1) on which various function buttons are mounted, and on a bottom plate (2) fixed to the front case (1). (main PCB) 3, the cathode ray tube 5 which is fixed to the front case 1 by the belt-shaped bracket 4 which is integrally mounted on the outer side, and the video ratio of the cathode ray tube 5 ( A video shield (7) surrounding the video PCB) (6) to shield the electromagnetic waves emitted from the video PCB) and a magnetic field fixed to the cathode ray tube (5) to remove the magnetic field remaining in the cathode ray tube (5). A shield case 9 which surrounds the gouging coil 8, the cathode ray tube 5 and the main printed circuit board 3 and shields electromagnetic waves emitted from them, and the front case 1 The rear case 10 is detachably coupled to protect the internal parts.
    At this time, the shielding case 9 for shielding the electromagnetic wave shielding the cathode ray tube 5 is used for the video shield 7 surrounding the video PCB 6 of the cathode ray tube 5, and the shield is used. The case 9 is fixed to the rear case 10 and then surrounds the cathode ray tube 5 when the rear case 10 is coupled to the front case 1.
    2 is a side view showing a grounding state of the shield case and the video shield according to the prior art.
    As shown in the drawing, when the video shield 7 surrounding the video PCB 6 of the cathode ray tube 5 and the shield case 9 for electromagnetic wave shielding surrounding the cathode ray tube 5 are grounded, 9) When the cathode ray tube 5 is shielded, a predetermined shape earth plate 11 having an elastic force is provided at a predetermined position on the inner surface of the shield case 9 so as to contact and ground the outer surface of the video shield 7. To fix it.
    As a result, when the grounding plate 11 is fixed to the inner side of the shield case 9 in the assembly line, the workability is remarkably decreased due to the increase in the number of labors due to the riveting work, and the number of parts is increased by using a separate rivet. The increase has a problem of rising cost.
    Figure 3 is an excerpt of the main portion showing the fixed state of the shield case and the rear case according to the prior art.
    As shown, by using the screw 12 when fixing the shielding case 9 for shielding the electromagnetic wave emitted from there by shielding the cathode ray tube 5 described above to the rear case 10, The cost is increased due to the increase in the number of parts due to the use of fastening members, and the workability is remarkable due to the increase in the number of labors for fixing the shield case 9 to the rear case 10 using the screw 12. You will have problems falling.
    Accordingly, an object of the present invention is to use a separate fastening member when fixing the ground plate to the shield case and the shield case for the rear case to ground the video shield of the cathode ray tube and the electromagnetic shielding shield case surrounding the cathode ray tube. This eliminates the need to provide a grounding and fixing device for the shield case, which reduces the number of parts and greatly reduces the cost.
    Another object of the present invention is to significantly improve workability by fixing the ground plate for grounding the shield of the cathode ray tube and the shield case surrounding the cathode ray tube on the inner side of the shield case and shortening the labor maneuver to fix the shield case to the rear case. It is to provide grounding and fixing device of one shield case.
    1 is a schematic exploded perspective view of a monitor equipped with a shield case,
    2 is an excerpt showing an earth state of the shield case and the video shield according to the prior art,
    3 is an excerpt excerpt illustrating a state in which a shield case and a rear case of the related art are fixed;
    Figure 4 is a schematic exploded perspective view of the monitor showing the grounding and fixing device of the shield case according to the present invention,
    5 is an excerpt illustrating an example of the grounding state of the shield case and the video shield according to the present invention;
    Figure 6 is an excerpt of the main part showing a fixed state of the shield case and the rear case according to the present invention.
    * Explanation of symbols used in the main part of the drawing
    One; Front case
    3; Main printed circuit board (main PCB)
    5; Cathode ray tube (CRT)
    7; Video shield
    9; Shield case
    10; Rear case
    20,21; Combined groove
    22,23; Jam
    24,25; Fixed piece
    26,27; stopper
    28; Protrusion
    29; Combined groove
    30,31; Jamming
    32,33; Home
    An object of the present invention described above is a front case, a video shield for shielding the video PCB of the cathode ray tube fixed to the front case, a shield case for shielding the electromagnetic wave by shielding the cathode ray tube, and fixed to the shield case A grounding apparatus for a shield case of a monitor comprising a ground plate which is grounded to the video shield and a rear case fixed to the front case, the grounding apparatus comprising: a coupling groove symmetrically formed at a predetermined position of the shield case; And a fixing piece which is formed in the opposite direction to the ground plate and is fixed to the locking jaw of the coupling groove when the insert is inserted into the coupling groove to fix the ground plate to the shield case. This is achieved by providing a grounding device for the shield case.
    SUMMARY OF THE INVENTION An object of the present invention as described above includes a front case, a cathode ray tube fixed to a front case, a shield case shielding a cathode ray tube to shield electromagnetic waves, and a rear case fixed to the front case. A grounding apparatus for a shield case, comprising: a protruding piece formed on an inner side of the rear case; A coupling groove which is formed in the shield case in a position and shape corresponding to the protrusion piece, and is coupled to the protrusion piece to support the shield case when the shield case is inserted into the rear case; A locking protrusion formed on the inner wall of the rear case; And a locking groove which is formed in the shield case at a position corresponding to the locking protrusion and is coupled to the locking protrusion when the shield case is inserted into the rear case to prevent flow of the shield case. By providing a fastening of the case.
    According to a preferred embodiment, between the fixing pieces of the ground plate is formed in a direction perpendicular to the fixing piece, to prevent the ground plate from being separated from the shield case when the fixing piece is fixed to the coupling groove A stopper is further provided.
    Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail to be easily carried out by those skilled in the art in order to facilitate understanding of the technical contents of the present invention. For this reason, the technical scope of the present invention is not limited.
    4 and 6, the main printed circuit board 3 mounted on the front case 1, the bottom plate 2 fixed to the front case 1, and a strip mounted on the outer surface thereof. A cathode ray tube 5 fixed to the front case 1 by a bracket 4 having a shape, a video shield 7 surrounding the video PCB 6 of the cathode ray tube 5 to shield electromagnetic waves, and a cathode ray The degaussing coil 8, which is fixed to the tube 5 and removes the magnetic field remaining in the cathode ray tube 5, is wrapped around the cathode ray tube 5 and the main printed circuit board 3 and discharged therefrom. A shield case 9 for shielding electromagnetic waves, a ground plate 11 fixed to the shield case 9 and grounded to the video shield 7, and a rear case coupled to the front case 1 to protect internal components ( 10) is applied substantially the same as that shown in FIG. 1, so a detailed description thereof will be provided. And reference numeral duplicate was identical to the title.
    Accordingly, in the shield case grounding apparatus according to the preferred embodiment of the present invention, as shown in FIG. 5, the coupling grooves 20 and 21 are disposed at predetermined positions of the shield case 9 facing the video shield 7 described above. It is formed symmetrically, and is inserted into the coupling grooves (20, 21) is fixed to the locking jaw (22, 23) formed in a straight line in the coupling grooves (20, 21) when rotated to ground the shield plate (9) Fixing pieces 24 and 25 for fixing 11 are formed on the ground plate 11 in opposite directions.
    At this time, the above-described ground plate 11 is formed between the fixing pieces 24 and 25 in a direction perpendicular to the fixing pieces 24 and 25, and the fixing pieces 24 and 25 are coupled to the coupling grooves 20 and 21. It is further provided with stoppers (26, 27) to prevent the ground plate (11) from being separated from the shield case (9) when it is fixed to the locking jaw (22, 23) of.
    In the shield case fixing device according to the preferred embodiment of the present invention, as shown in Figure 6, the rear case 10 is formed with a plurality of protruding pieces 28 on the inner side, the shield on the rear case 10 When the case 9 is inserted and coupled to the protrusion piece 28, the coupling groove 29 supporting the shield case 9 is formed in the shield case 9 in a position and shape corresponding to the protrusion piece 28. The locking protrusions 30 and 31 are formed on the inner wall of the rear case 10, and the shielding case 9 is inserted into the rear case 10 to be coupled to the locking protrusions 30 and 31 when the shielding case 9 is inserted into the rear case 10. Locking grooves (32, 33) to prevent the flow of 10 is formed in the shield case (9) of the position corresponding to the locking projections (30, 31).
    Referring to the method of using the grounding device of the shield case according to an embodiment of the present invention configured as described above are as follows.
    As shown in FIG. 5, the shield case surrounds the video shield 7 of the cathode ray tube 5 fixed to the front case 1 and the cathode ray tube 5 to shield electromagnetic waves emitted from the front case 1. Using the ground plate 11 placed between them, the use of a separate fastening member is unnecessary when grounding (9).
    That is, the fixing pieces 24 and 25 formed in the ground plate 11 with respect to the coupling grooves 20 and 21 formed symmetrically with each other in the predetermined position behind the shield case 9 facing the video shield 7 described above. After inserting, as the ground plate 11 is rotated in the clockwise direction in the drawing, fixing pieces 24 and 25 formed in opposite directions to the ground plate 11 are co-linear with the coupling grooves 20 and 21. It is fixed to the seating jaw (22, 23) formed in the upper. Therefore, the fixing operation of the ground plate 11 to the shield case 9 is completed.
    At this time, since the rotation of the ground plate 11 is interrupted by the stoppers 26 and 27 formed on the ground plate 11 at right angles between the fixing pieces 24 and 25 described above, the shield case It is possible to prevent separation of the ground plate 11 fixed to (9).
    On the other hand, the method of using the fixing device of the shield case according to an embodiment of the present invention.
    As shown in FIG. 6, the use of a separate fastening member is unnecessary when the shield case 9 is wrapped around the cathode ray tube 5 to shield the electromagnetic wave emitted from the rear case 10.
    That is, the cathode ray tube 5 is fixed to the front case 1 described above, and the protruding pieces 28 formed on the rear inner side of the rear case 10 are located at a predetermined position behind the shield case 9 so as to correspond thereto. When the shield case 9 is inserted into the rear case 10 so that the coupling groove 29 formed therein is coupled, the coupling groove of the protrusion 28 and the shield case 9 of the rear case 10 described above ( The coupling of 29 allows the shield case 9 to be supported.
    At this time, as the engaging grooves 32 and 33 formed in the shield case 9 are coupled to the engaging projections 30 and 31 formed in the inner wall of the rear case 10, the shield against the rear case 10 is shielded. It is possible to prevent the case 9 from flowing.
    As described above, according to a preferred embodiment, when fixing the ground plate and the shield case for the rear case to the shield case to ground the shielding case for shielding electromagnetic waves surrounding the video shield of the cathode ray tube and the cathode ray tube, Since the use of fastening members is unnecessary, the cost of the components can be greatly reduced by reducing the number of parts.
    In addition, the ground plate that grounds the shielding shield surrounding the cathode ray tube and the video shield of the cathode ray tube is fixed to the inner side of the shield case and the work maneuver to shorten the shield case to the rear case to significantly improve workability Has
    权利要求:
    Claims (3)
    [1" claim-type="Currently amended] A video shield for shielding the video case of the cathode ray tube fixed to the front case, the front case, a shield case shielding the cathode ray tube to shield electromagnetic waves, a ground plate fixed to the shield case and grounded to the video shield; In the grounding apparatus of the shield case of the monitor comprising a rear case fixed to the front case:
    A coupling groove symmetrically formed at a predetermined position of the shield case; And
    The shield is formed in the opposite direction to the ground plate, the insert is inserted into the coupling groove is fixed to the locking jaw of the coupling groove when rotated, characterized in that it comprises a fixing piece for fixing the ground plate to the shield case Grounding device in the case.
    [2" claim-type="Currently amended] The method of claim 1, wherein the ground plate is formed at right angles to the fixing piece between the fixing pieces of the ground plate, and prevents the ground plate from being separated from the shield case when the fixing piece is fixed to the coupling groove. A shielding device grounding apparatus further comprising a stopper.
    [3" claim-type="Currently amended] A grounding apparatus for a shield case of a monitor comprising a front case, a cathode ray tube fixed to a front case, a shield case shielding a cathode ray tube to shield electromagnetic waves, and a rear case fixed to the front case:
    A protruding piece formed on an inner surface behind the rear case;
    A coupling groove which is formed in the shield case in a position and shape corresponding to the protrusion piece, and is coupled to the protrusion piece to support the shield case when the shield case is inserted into the rear case;
    A locking protrusion formed on the inner wall of the rear case; And
    The shield case is formed in the shield case at a position corresponding to the locking protrusion, and is provided with a locking groove coupled to the locking protrusion to prevent the shield case from flowing when the shield case is inserted into the rear case. Fixture.
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    同族专利:
    公开号 | 公开日
    KR100321935B1|2002-02-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-02-13|Application filed by 윤종용, 삼성전자 주식회사
    1999-02-13|Priority to KR1019990005279A
    2000-09-15|Publication of KR20000056194A
    2002-02-04|Application granted
    2002-02-04|Publication of KR100321935B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019990005279A|KR100321935B1|1999-02-13|1999-02-13|Grounding apparatus of shield case|
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