KR19990023662U - Decoupling device for TV cathode ray tube - Google Patents

Abstract

The present invention relates to a device coil separable fixing device for a television cathode ray tube. The technical gist of the present invention is that the fixing lugs 22 installed at each corner portion of the high information 11 installed inside the front mask 10 are fixed bolts ( The fixing piece 48 of the fixing bracket 45, in which the element coil 30, which is positioned adjacent to one side of the cathode ray tube 20, which is coupled as 23), is positioned to adjust the purity, is installed on the inner side of the front mask 10. The fixed bracket 45 of the fixing bracket 45 is detachably coupled to the fixing groove 41 of the fixing rib 40 protruding from the inner surface of the front mask 10. It is done.

This eliminates the troublesome fixing work of tying and fixing the device coils to separate coupling pieces, thereby facilitating the fixing of the device coils, while maintaining the fixation state firmly and easily fixing the large size cathode ray tube. On the other hand, since the fixing bracket and the fixing rib to which the device coil is fastened to be separated and combined, it is easy to cope with the design change of the cathode ray tube.

Description

Decoupling device for TV cathode ray tube

The present invention prevents the influence of the current magnetic field of the television cathode ray tube (CRT) to prevent Purity beyond the non-orbital path of the electron gun. The device coil separable fixing device of a television cathode ray tube which can be fixed easily is described in more detail. A cathode ray tube in which fixing lugs installed at each corner portion are coupled as a fixing bolt to high information installed inside the front mask is provided. An element coil positioned adjacent to adjust the purity on the side is fixed to the fixing piece of the fixing bracket installed on the inner side of the front mask, and the rear fixing bar of the fixing bracket is fixed on the inner side of the front mask. It can be detachably coupled to the fixing groove of the rib.

Accordingly, the fixing work of the cathode ray tube element coil is extremely simple, and the troublesome fixing work of tying up and holding separate coupling pieces is unnecessary, thereby improving workability and maintaining the fixing state firmly, especially for large models. It is easy to fix the device coil to the cathode ray tube of the, while the fixing rib to which the fixing bracket to which the element coil is fastened is separated and combined, so that the TV cathode ray tube can easily cope with the design change of the cathode ray tube It relates to a device coil detachable fixing device of.

Commonly known cathode ray tubes (CRTs) in color televisions are PURITY, in which the electron beams emitted from the electron gun are cast at the shadow mask in order to reproduce the perfect color of the shadow mask type CRT. Convergence, which plays a role of concentration, and white balance, which prevents colors from sticking together, are adjusted. At this time, degaussing coils are installed on one side of the cathode ray tube to adjust the purity. .

In the conventional cathode ray tube element coil fixing structure related to such a technique, as shown in FIGS. 1 and 2, the cathode ray tube 51 is coupled to the high information 61 of the front mask 60. Fixing lugs 53 are installed at each corner of the iron strip 52 coupled to the planar portion of the cathode ray tube 51, and the fixing lugs 53 and the high information 61 are interposed between the fixing washers 71. Are coupled as a fixing bolt (70), and at the same time the coupling piece 80 is coupled, the outer cover of the coupling piece 80 is covered with a cover 81, each corner portion of the element coil 90 is tied to the cathode ray tube It is to be installed in the rear side of 51.

However, in the cathode ray tube element coil fixing structure of the conventional television as described above, as shown in Figs. 1 and 2, when the front mask 60 of the cathode ray tube 51 is installed, an operator fixes the fixing lug 53. Fixing of the element coil 90 is delayed due to the cumbersome work of manually binding each piece of the element coil 90 as a coupling piece 81 coupled to the coil), thereby delaying the assembly process. While the workability and productivity are deteriorated, it is difficult to separate the element coil 90 when necessary, and the fixed state of the cathode ray tube 51 is vulnerable due to the unstable element coil 90 fixed state generated during the manual operation of the operator. There were disadvantages such as being.

In particular, as shown in Figure 3, when the television 50 is a large model, because the size of the cathode ray tube 51 is enlarged, the overall size of the element coil 90 is enlarged, thus overlapping the cathode ray There were various problems such as fixing the element coil 90 by the coupling piece 80 to be fixed as the adhesive tape 91 on the rear surface of the tube 51, more difficult.

The present invention has been devised to improve the various problems as described above, the purpose of which is that the fixing work of the cathode ray tube element coil is extremely simple, as well as the need for cumbersome fixing work by tying up a separate coupling work In addition to improving the properties, the fixed state is also firmly maintained, and in particular, the element coil is easily fixed to a cathode ray tube of a large model, and the fixing rib to which the fixing bracket to which the element coil is fastened is separated to be coupled. Therefore, the present invention provides an element coil separable fixing device for a television cathode ray tube that can be easily coped with even when the design of the cathode ray tube is changed.

1 is a schematic perspective view showing a device coil fixed state of a conventional television cathode ray tube

2 (a) and 2 (b) are a perspective view and a main structural view showing a main component coil fixed state of a conventional television cathode ray tube;

3 is a schematic front view showing a fixed state of a conventional element coil for a large TV cathode ray tube;

Figure 4 is a side configuration view showing a device coil detachable fixing device of a television cathode ray tube according to the present invention

5 (a) and (b) is a rear view showing a state in which the element coil is installed on the small and large silver pole tube as a device coil detachable fixing device of the present invention;

Figure 6 is an exploded perspective view showing a device coil detachable fixing device of the present invention television cathode ray tube

Explanation of symbols on the main parts of the drawings

10 .... Front Mask 11 .... Governance

20 .... cathode ray tube 30 .... element coil

40 .... Fixed rib 41 .... Fixed groove

42 .... Jaw 45 .. Bracket

46 .... Fixing bar 47 .... Fixing bar

48 .. Fixing piece 48 '.... Fixing piece tip

Technical means of the present invention for achieving the above object is a cathode ray to which the fixing lugs coupled to each corner portion of the iron strip coupled to the flat portion to the high information installed on each inner corner of the television front mask is coupled as a fixing bolt In the element coil for cathode ray tube installed to adjust the color purity to one side of the tube, the inner surface of the front mask is integrally protruded in the horizontal direction between each of the high information on the upper side and the left and right sides, respectively, the inner center surface on one side A fixing rib in which a fixing groove in which a fixing jaw is formed is formed; And a fixing bar which is inserted into the fixing groove of the fixing rib and integrally protrudes the fixing protrusion fixed to the fixing jaw of the fixing rib to one side of the outer circumferential surface thereof, and is formed at the rear end thereof, and the element coil toward the front of the fixing bar. By fixing the device to separate the device coil of the cathode ray tube of the television cathode tube comprising a; fixing bracket which is integrally coupled to the fixing piece to fasten.

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

Figure 4 is a side configuration diagram showing a device coil detachable fixing device of the television cathode ray tube according to the present invention, Figure 5 (a) and (b) is a device coil detachable fixing device of the present invention small and large silver cathode ray tube Is a rear view showing a state in which element coils are installed, and FIG. 6 is an exploded perspective view showing an element coil detachable fixing device of a television cathode ray tube of the present invention. The present invention is constructed as a fixed rib 40 and a fixed bracket 45. The fixed lugs 22 are coupled to the corners of the metal strip 21 coupled to the planar portion of the cathode ray tube 20 in the high information 11 provided at each inner corner of the television 1 front mask 10. The cathode ray tube 20 is coupled to the fixing bolt 23, and the element coil 30 for the cathode ray tube 20 is installed to adjust the purity to one side of the cathode ray tube 20.

In addition, the fixing ribs 40 are integrally protruded in the horizontal direction, respectively, in the horizontal direction between each of the high-profiles 11 on the upper side and the left and right sides to the inner side of the front mask 10, and the fixing ribs 40 Inner center is formed integrally with a fixing groove 41 formed with a fixing jaw 42 on one side of the inner peripheral surface. In addition, the fixing bracket 45 to be detachably fixed to the fixing rib 40 is inserted into the fixing groove 41 of the fixing rib 40 and fixed jaw 42 of the fixing rib 40 to one side of the outer circumferential surface thereof. Fixing bar (47) is formed in the rear end of the fixing projections (46) integrally protruded by the fixed protrusions, the fixing piece for fastening the element coil (30) in front of the fixing bar (47) 48) are integrally combined.

On the other hand, the front end portion 48 'of the fixing piece 48 of the fixing bracket 45 is formed in an arc shape so that the element coil 30 is inserted into the fixing piece 48, and the fixing piece 48 is fixed to the inside thereof. The device coil 30 has a configuration in which a central portion is bent so as to be positioned adjacent to the rear surface of the cathode ray tube 20.

Referring to the operation and effects of the subject innovation of the above configuration is as follows.

As shown in Figs. 4 to 6, an element coil 30 is installed in the vicinity of the cathode ray tube 20 of the television 1 to adjust the purity of the television 1 due to the influence of magnetism. Detachable element coil which allows the coil 30 to be easily inserted into and fixed to the fixing piece 48 of the fixing bracket 465 installed to be detachably attached to the fixing rib 40 installed on the front mask 10 of the television 1. The fixing device is as follows.

First, the cathode ray tube 20 is installed inside the front mask 10 of the television 1, which is fixed lugs 22 coupled to each corner of the iron strip 3 installed in the plane of the cathode ray tube 1. ) Is firmly coupled to the high information 11 provided at each corner portion of the inner surface of the television front mask 10 as a fixing bolt 23. Therefore, the element coil 30 is positioned adjacent to the cathode ray tube 20 to enable the purity adjustment of the cathode ray tube 20.

On the other hand, the fixing ribs 40 are integrally protruded in the horizontal direction between each of the high information 11 to the upper and left and right sides of the inner surface of the front mask 10, respectively, in the inner center of the fixing ribs 40 The fixing groove 41 is formed with a fixing jaw 42 on one side inner circumferential surface. Therefore, the fixing bar 47 provided at the rear end of the fixing bracket 45 is inserted into the fixing groove 41. At this time, when the worker rotates the fixing bar 47 inserted into the fixing groove 41, the fixing projection 46 protruding on one side outer circumferential surface of the fixing bar 47 is fixed to the inner one side of the fixing groove 41 ( 42 is fixed to the fixing bar 47 is coupled to the fixing groove 41 while being fixed to the fixing ribs 40 and the fixing bracket 45 is coupled to be separated from each other to install the fixing bracket 45 This will be easy.

In addition, the front end of the fixing bar 47 is formed in an arc shape by the front end portion 48 ′, part of the fixing piece 48 is opened, the element coil 30 is easily fixed to the fixing piece 48 It is fixed. At this time, the tip portion 48 ′ of the fixing piece 48 is smaller than the thickness of the device coil 30 fitted into the inside thereof so that the device coil 30 is more closely fixed and at the same time the Since the central portion is formed bent downward, the element coil 30 can be located closer to the outer surface of the cathode ray tube 20, thereby smoothing the purity by the element coil 30 .

In addition, since the fixing bracket 45 to which the element coil 30 is fixed is separated and coupled to the fixing rib 40, even if the shape of the cathode ray tube 20 is changed, the fixing bracket 45 fixing piece 48 ) Is to be used by changing only the shape of the cathode ray tube 20 is to be improved compatibility. In addition, as shown in Figure 6, in the case of a large cathode ray tube 20, the element coil 30 is fixed to overlap the fixed bracket 45 and the fixed rib 40 is separated as in the present invention As the device coil 30 is fixed to the fixing bracket 48, the operator easily performs the fixing tape 49 in the case of the large cathode ray tube 20, thereby facilitating the entire fixing operation of the device coil 30. Will be done.

As described above, according to the device coil detachable fixing device of the television cathode ray tube of the present invention, the fixing operation of the cathode ray tube element coil is extremely simple, and the troublesome fixing operation of tying a separate coupling piece is unnecessary, thereby improving workability. On the other hand, the fixed state is also firmly maintained, and in particular, the element coil is easily fixed to a cathode ray tube of a large model, while the fixed rib to which the fixing bracket to which the element coil is fastened is separated to be coupled, the cathode ray There is an excellent effect that can easily cope with the design change of the tube.

Claims (2)

A fixing lug 22 coupled to each corner portion of the iron strip 21 coupled to a flat portion is coupled to the high information 11 installed at each inner corner of the television 1 as a fixing bolt 23. In the element coil 30 for the cathode ray tube 20 which is installed so as to adjust the purity to one side of the cathode ray tube 20 to be, Fixing grooves 41 which are integrally protruded in the horizontal direction between the upper and left sides of the front mask 10, respectively, in the horizontal direction, and in the inner center of the front mask 10, and the fixing jaw 42 is formed on one inner circumferential surface of the front mask 10. Fixed rib 40 is formed; And, The fixing bar 47 is inserted into the fixing groove 41 of the fixing rib 40, and the fixing protrusion 46 integrally protrudes from the fixing jaw 42 of the fixing rib 40 to one side of the outer circumferential surface thereof. ) Is formed at the rear end, and the fixing bracket 45 is integrally coupled to the fixing piece 48 for fastening the element coil 30 to the front of the fixing bar 47; characterized in that it comprises a Element coil detachable fixing device for TV cathode ray tube The method of claim 1, wherein the fixing piece 48, the front end portion 48 'is formed in an arc shape, the center portion is formed to be bent adjacent to the rear surface of the cathode ray tube 20 located below Device coil detachable fixing device for TV cathode ray tube