KR20060133815A - Shield case of display - Google Patents

Abstract

A shield case of a display is provided to fix and arrange electric wires in the shield case by integrating a distributing holder. A printed circuit board is integrated with devices and circuits. A shield case(100) comprises a number of through-holes(110) to be connected with a connection member in order to support the printed circuit board. An electric wire(W) is connected to conduct the printed circuit board electrically. A piece is extended in the through-hole of the shield case in order to wind the electric wire.

Description

Shield Case of Display

1 is a perspective view showing a shield case of a conventional television.

2A and 2B are perspective views showing a holder for a ship installed in a shield case of a conventional television.

3 is a perspective view showing a shield case according to the present invention.

4 is a perspective view showing the use of the shield case according to the present invention.

Explanation of symbols on main parts of drawing

10: television 20: audio circuit

30: video signal unit 40: synchronous deflection circuit unit

50: front cabinet 60, 100: shield case

80a, 80b: Liner holder 110: Through hole

120: neck portion 130: dock portion

132: projection

The present invention relates to a wire holder integrated into a shield case, and more particularly, to a shield case of a display in which a wire holder is integrated so that wires can be fixed and arranged in a shield case such as an electronic device such as a television.

In general, a display is intended to implement an electric signal as an image for a user to watch. The types of the display are largely a CRT method for realizing an image using a cathode ray tube, an LCD method using a liquid crystal, and a PDP method using a gas discharge. Separated by. Such displays are used for a monitor that converts a signal transmitted from a receiving station and outputs a result processed by a television or a computer that is provided to the user and outputs the result to the user.

Hereinafter, the display will be described based on the display using the CRT method. Although this description will be based on the CRT type display, it will be clear that it includes all the displays to which the shield case is applied to fix and support the printed circuit board and to block the interference by electromagnetic waves.

1 is a perspective view showing a shield case of a conventional television. Referring to the drawings, generally, the television 10 includes a sound receiving circuit 22 for detecting a signal related to sound among video signals and a speaker 24 integrally installed in the television 10 or a separate sound output device. It constitutes a sound circuit unit 20 consisting of a sound output terminal 26 for connection.

Then, the video signal unit 30 for detecting the video signal and the color signal reproducing circuit and the video signal which make the color signal entered into the video signal circuit into the primary color signal for the operation of the cathode ray tube 42 are taken out, and the horizontal is based on this. And a synchronous deflection circuit portion 40 of a cathode-ray tube (CRT) 44 to operate the vertical and vertical polarization circuits to implement an image on the fluorescent surface of the CRT.

In addition, the sound circuit unit 20, the image signal unit 30, and the synchronous deflection circuit unit 40 as described above are connected to each other by wires through which an element and a printed circuit board having integrated circuits communicate electrical signals so that each circuit unit is operated. In conjunction with the CRT 42 is fixed to the built-in front cabinet 50. Then, the printed circuit boards as described above are supported by the shield case 60 formed of sheet metal by press working or the like so as to be protected from the influence of other radio waves and the like.

On the other hand, the shield case 60 is provided with a sieve holder (80a, 80b) for fixing the wire (W) for connecting each printed circuit board, which will be described based on Figure 2a and 2b. . 2A and 2B are perspective views showing a holder for a ship installed in a shield case of a conventional television.

Referring to the drawings, the siege holder (80a, 80b) is made of a material having a large elastic force and the retractable holder (80a) and the wire (W) provided with a holder (82a) for restricting the access of the wire (W) ) Can be divided into a twister type holder 80b in which the holder itself is tied in a knot in the holder 82b, and the sieve holders 80a and 80b are provided with anchors 84a and 84b downwards to provide a shield case ( Anchors 84a and 84b of the sieve holders 80a and 80b are fastened to a plurality of coupling holes 62 for coupling the heat dissipation and the sieve holders 80a and 80b formed in the 60 and the inside of the television 10. To arrange the wires (W) that are cluttered with air.

In this way, although the wires W drawn from each printed circuit board are arranged by the plurality of winding holders 80a and 80b installed in the shield case 60, the wires W may be stretched or cluttered. Since the sieve holders 80a and 80b are prepared and must be installed in the coupling hole 62 of the shield case 60, the siege holders 80a not only interfere with the process for quickly arranging the sieves. Since 80b) is required, there is a problem that the production cost is increased due to excessive requirements of the parts.

In addition, the shielding holders 60a and 80b inserted into and fixed to the coupling holes 62 of the shielding case 60 are vibrated during the display operation, thereby shielding the shielding case 60 and the sieve holders 80a and 80b. There is a problem that the noise is generated by hitting the anchor (84a, 84b).

The present invention has been made to solve the above problems, and the shield case of the display integrated with a wire holder holder to fix and organize the wires in the shield case so that the wires for connecting the printed circuit boards are not cluttered inside the television. The purpose is to provide.

Technical concept of the present invention for achieving the above object, a printed circuit board integrated with the device and the circuit, a shield case provided with a plurality of through holes to be fastened with the fastening member so that the printed circuit board is supported, and It is achieved by a wire holder integrated in a shield case which includes a wire which is connected to the printed circuit board so as to be in electrical communication and a side which extends in the through hole of the shield case so that the wire is wound.

Here, it is preferable that the side portion extending in the through hole of the shield case further includes a neck portion connected to the through hole of the shield case and a dock portion having an area larger than the cross-sectional area of the neck portion.

And, it is preferable to further include a projection provided in the dock portion so that the wire wound around the neck portion is not arbitrarily released.

Moreover, it is preferable that the piece in a through hole is shape | molded further by the said press working.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

3 is a perspective view showing a shield case according to the present invention. Referring to the drawings, the shield case 100 provided in the display is fixed to various printed circuit boards so as to implement an image and sound, and electromagnetic waves generated in the printed circuit board (EMI; Electro Magnetic Interference) ) To prevent interference.

In addition, the shield case 100 is for fixing the wires (W) in the display inside the display by fixing the wires for communicating the electrical signal to the printed circuit board integrated with the elements so that each circuit portion of the display is operated will be.

The shield case 100 according to the present invention has a substantially sealed structure to dissipate heat generated from the printed circuit board, while the through-hole 110 through which the fastening member penetrates to securely support the printed circuit board. It is provided over the entire surface and the fastening member penetrates to fix the printed circuit board. Then, the plurality of wires W connected to the printed circuit board are wound on the side extending from the through hole 110.

The side extending in the through hole 110 of the shield case 100, the neck portion 120 is connected to the through hole 110 of the shield case 100, and the area larger than the cross-sectional area of the neck portion 120 It consists of a dock part 130 which has. The one extending from the through-hole 110 consisting of the neck portion 120 and the dock portion 130 is integrally formed by press working during the shield case 100 forming.

On the other hand, various printed circuit boards of the display that can be installed in the shield case 100 as described above, the sound output circuit for detecting a signal related to the sound of the image signal and the sound output for connecting to a speaker or a separate sound output device The CRT operates a printed circuit board having a sound circuit composed of terminals, a printed circuit board configured to detect an image signal output from a separate device connected to a receiving station or a display, and a color signal input to the image signal circuit. And a printed circuit board including a synchronous deflection circuit unit which extracts a synchronous signal from a video signal and a video signal generated from a primary color signal, and operates a horizontal and vertical parallel circuit based thereon to implement an image on a fluorescent surface of a CRT.

In addition, a number of printed circuit boards can be installed in the shield case 100, the shield case 100 is fixed to the front cabinet or the back cover, as described above, fastened to securely support the printed circuit board The through-hole 110 is provided so that the member is fastened to the printed circuit board.

In addition, the through hole 110 is provided with a side capable of wrapping the wire (W), the side extending in the through hole 110 of the shield case 100, the neck extending to the center of the through hole (100). Is connected to the through-hole 110 by the portion 120 and the neck portion 120, and consists of a substantially circular dock portion 130 having the same center as the center of the through-hole (110). In addition, the protrusion 132 protruding by a predetermined height from the center of the dock 130 is provided.

The one side extending in the through hole 110 may be formed during sheet metal forming by press working or the like of the shield case 100, and the press working of the shield case 100 may be performed in a plate of conductive material. After press processing for molding, the printed circuit board is bent to seal. At this time, during the press working for forming the through hole 110, the through hole 110 is pressed to be provided with a neck portion 120 and the dock portion 130.

That is, the press jig formed with the shape of the neck part 120 and the dock part 130 is formed on the base material on which the through hole 110 is formed by pressing the plate member to the neck part 120 and the dock part 130 in the through hole 110. ) Is formed. Since the piece extending in the through-hole 110 is made of the same material as the plate, the piece itself becomes conductive, and thus the electromagnetic shielding function of the printed circuit board is provided, and the ductility of the plate being bent is accompanied. Therefore, the side extending in the through hole 110 is bent at the time of winding the wire (W) so that the wire (W) does not arbitrarily loosen (see Figure 4).

In addition, the protrusion 132 is provided in the dock portion 130 so that the wire W wound on the side extending in the through hole 110 is not released. The protrusion 132 provided in the dock 130 is integrally formed simultaneously with the dock 130 that is formed by the press working as described above.

The shield case 100 of the display having the above-described configuration is fixed to the printed circuit board configured with the various printed circuit boards of the display, that is, the sound circuit unit, the image signal unit, and the synchronous deflection circuit unit. By being seated in the shield case 100 is fixed. Then, the wires (W) are connected so that the printed circuit boards are in electrical communication.

The wires W are connected to a printed circuit board fixed to the shield case 100 and to other devices such as a printed circuit board for controlling a cathode ray tube. At this time, since the wire (W) is dizzyly wired, it is wound on the side extending in the through-hole 110 of the shield case 100. In order to wind the wire W in the Q case 100, the wire W is wound around the neck part 120 several times, or the through hole in which the neck part 120 is bent in the through hole 110 ( After passing the electric wire (W) between the 110 and the neck portion 120, the bent neck portion 120 is bent back to its original state, so that the electric wire (W) is physically fixed to the through hole 110 by the neck portion 120. To be done.

The shield case 100 of the display according to the present invention as described above shields the electromagnetic wave generated from the printed circuit board so as not to interfere with other devices and at the same time the wire (W) that the shield case 100 itself links the printed circuit boards Since the wire is held so as not to be disturbed, the wires W can be fixed and organized.

In the shield case of the display according to the present invention, the wires are fixed and arranged by the neck part and the dock part integrated in the shield case so that the wires for connecting the printed circuit boards for driving the display are not cluttered inside the display. You can.

In addition, the wire holders, which have conventionally been used to fix the wires to the shield case, are unnecessary, thereby reducing the production cost and improving the work efficiency because the wires can be easily wound on the side extending in the through hole. Since the wires are wired together with the shield case, the noise generated in the conventional holder for the display may not be generated.

On the other hand, the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea that such modifications and variations are also included in the claims Should be seen.

Claims (4)

A printed circuit board in which elements and circuits are integrated; A shield case provided with a plurality of through holes to be fastened with the fastening member to support the printed circuit board; Wires connected to the printed circuit board to be in electrical communication; And Shield case of the display including a side extending in the through hole of the shield case so that the wire is wound According to claim 1, The side extending in the through hole of the shield case, A neck portion connected to the through hole of the shield case; And The shield case of the display further comprises a dock portion having an area larger than the cross-sectional area of the neck portion. The method of claim 2, The shield case of the display further comprises a projection provided on the dock so that the wire wound around the neck is not arbitrarily released. The method of claim 1, The shield case of the display further comprises forming a piece in the through hole by the press working.

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