KR20000021453A - Apparatus for preventing vibration of television set by speaker sound source - Google Patents

Abstract

PURPOSE: An apparatus for preventing a vibration of a television set by a speaker sound source is provided to remarkably reduce a vibration and noise and, simultaneously, to increase hardness of a cathode ray tube coupling part, thereby, improve the sound quality of a television all the more. CONSTITUTION: In a television in which a cathode ray tube coupling part of a quadrilateral form is formed in the inside of the front mask(110) of the television, a front face of a cathode ray tube(120) is installed on the cathode ray tube coupling part, and a speaker is installed on the both sides of the cathode ray tube, an apparatus for preventing a vibration of a television set by a speaker sound source is provided to reduce a resonance phenomenon. The resonance phenomenon is due to the interference of the cathode ray tube coupling part. A reinforcement protrusion having a uniform thickness is installed so as to be protruded with a uniform space around the cathode ray tube coupling part.

Description

Vibration prevention device of TV set by speaker sound source

According to the present invention, vibration is generated at a natural frequency of a television set by a sound source generated from a stereo type television speaker and a coupling portion of a front mask and a CRT by a mode. And an apparatus for preventing vibration of a television set by speaker sound, which effectively prevents interference caused by the interference. In particular, a reinforcement protrusion having a constant thickness is formed at a predetermined interval around a coupling part of a CRT tube coupled to a front mask of a television. By projecting the TV speaker, the interference caused by the sound source from the front mask and the CRT can be minimized by the reinforcement protrusions installed at the CRT joint at regular intervals. Of course, to increase the rigidity of the CRT, accordingly TV The present invention relates to an apparatus for preventing vibration of a television set by a speaker sound source to further improve sound quality.

In general, a speaker of a television set includes a moving coil for converting an electrical signal into a linear motion and a diaphragm for generating sound pressure by connecting the linear motion with a tremor. It has a structure that is interconnected.

Meanwhile, in the stereo type television set, two speakers having the above structure are connected in parallel to be installed on both sides of the front mask, and vibrations are integrally generated from the two speakers. Not only the front mask is generated, but the generated vibration is transmitted to the CRT on the structure, the severe vibration occurs in the CRT.

1 is a main structural diagram of a CRT coupling unit of a TV in which stereo speakers are installed at both sides, and a rectangular CRT coupling unit 20 is formed inside the front mask 10 of the TV, and thus the front surface of the CRT 30 is formed. (Front surface) is to be installed in the snow, both sides of the CRT (30) is composed of a configuration in which the speaker 40 is installed in each.

As described above, the CRT is coupled to the front mask 10 and the CRT 30, as shown in FIG. 2. The CRT 20 is formed inside the front mask 10. When the front surface of the 30 is installed by the surface contact with each other, the surface contact of the CRT 30 is not completely made on the CRT coupling portion 20, and a part of the CRT is raised, thereby preventing a gap. In order to conventionally attach a shock absorbing member, such as a black zippo around the CRT coupling part 20.

However, when the stereo type speaker 40 installed on both sides of the front mask 10 is operated, vibrations through the speaker are particularly severely generated at both sides as well as the upper side of the front mask 10. The vibration of the front mask 10 is transmitted as it is to the CRT (30) coupled by the surface contact with it, and will be severely shaken in the CRT coupling portion (20).

In particular, the CRT 30 is a pipe that is fastened by fastening only the corner portion of the front mask 10 as a bolt, and sufficient rigidity is not maintained in the CRT coupling portion 20, in which case the CRT coupling portion 20 is maintained. ), Interference caused by vibration is relatively severe.

That is, the vibration of the stereo type speaker installed on both sides of the front mask 10 is generated on both sides and the top of the television set, and such vibration causes vibration between the coupling portions of the CRT coupled with the front mask. The interference and noise will be generated by the coupling part of the CRT which is another structure by the vibration of the speaker.

SUMMARY OF THE INVENTION The present invention has been made to solve various problems of the related art as described above. The object of the present invention is to provide a predetermined distance between the CRT and the CRT at the coupling of the front mask and the CRT. Minimizes vibration and noise by minimizing reinforcement protrusions installed in the system, as well as increases the rigidity of the CRT coupling part, thereby providing a vibration preventing device of a TV set by a speaker sound source that can further improve the sound quality of the TV. It is.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a main structure diagram of a CRT coupling part of a typical TV in which stereo speakers are installed on both sides.

Figure 2 is a cross-sectional structure of the main portion of the coupling state of the CRT coupled to the conventional CRT coupling portion.

Figure 3 is a schematic perspective view showing the installation state of the reinforcement projections installed around the CRT coupling portion coupled to the TV front mask and the CRT according to the present invention.

Figure 4 is a side cross-sectional structural view showing the installation structure of the reinforcement projections installed between the front mask and the CRT coupling portion coupled to the CRT of the present invention.

FIG. 5 is a graph of sound pressure measurement results measured outside of a television set for each reinforcing protrusion installation part according to a structural change of a coupling portion of the front mask and the CRT of the present invention.

5 (b)-(r) are graphs of the sound pressure measurement results before improvement,

(a)-(q) are graphs of the results of negative pressure measurement after improvement.

Explanation of symbols on the main parts of the drawings

110 ... front mask 120 ... brown tube

130 .. Brown pipe joint 140 ... reinforcement

150 ... speakers

L ... Brown Tube Coupler Width In Length h ... Brown Tube Coupler Height

t ... gap between the reinforcement of the brown pipe joint and the brown pipe

The present invention as a technical configuration for achieving the above object, the speaker is a speaker that reduces the vibration caused by the interference of the CRT coupling portion by installing a reinforcement protrusion of a certain thickness around the coupling portion of the CRT coupled to the front mask of the TV at regular intervals It is characterized by providing a vibration preventing device for a television set by a sound source.

In addition, the present invention is a peripheral portion of the Brown tube coupling portion is coupled to the front tube and the Brown tube, one in the L / 2 position of the width direction length (L) of the Brown tube coupling portion, and two projections in the position of the L / 3 Brown tube coupling A reinforcement protrusion is provided which protrudes 0.5 mm or less from each other between the part and the CRT, and one at a position h / 2 of the height h of both sides of the CRT coupling portion, and 2 at a position of h / 3. Three projections, characterized in that the reinforcement projections respectively protruding to 0.5mm or less, respectively, the distance between the CRT and CRT is installed to suppress the vibration caused by CRT interference between the front mask and CRT.

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

Figure 3 is a schematic perspective view showing the installation state of the reinforcement projections are installed around the TV tube and the CRT coupled to the CRT front mask according to the present invention, Figure 4 is a CRT coupled to the front mask and CRT of the present invention This is a side cross-sectional structural view showing the installation structure of the reinforcing protrusions provided between the above, in order to suppress the resonance phenomenon due to the speaker sound pressure in the CRT coupling unit 130 between the front mask 110 and the CRT 120 of the TV, By installing the reinforcing protrusions 140 having a predetermined thickness around the CRT coupling unit 130 of the CRT 120 coupled to the front mask 110 at regular intervals, the resonance phenomenon of the CRT coupling unit 130 is reduced. To do that.

On the upper and lower circumferences of the CRT coupling part 130 of the CRT pipe 120 coupled to the front mask 110, L / 2 and L / of the upper and lower width lengths L of the CRT coupling part 130 are provided. In three positions, the reinforcing protrusions 140 are respectively provided so that the distance t between the CRT coupling portion and the CRT is projected to be 0.5 mm or less, respectively.

In addition, both sides of the CRT 130 are located at h / 2, h / 3 positions of the C h of the CRT 130, and between the CRT 120 and the CRT 130. The reinforcement protrusions 140 protruding to a distance of 0.5 mm or less, respectively, are installed to suppress the vibration caused by the interference generated in the CRT coupling unit 130 between the front mask 110 and the CRT 120. Is done.

In the drawings, reference numeral “150” denotes a speaker installed at both sides of the front mask 110.

An embodiment of the present invention having such a configuration will be described.

Example

Suppressing the sound vibration of the front tube 110, which is a structure according to the sound pressure of the speaker 150 installed on both sides of the front mask 110 of the television, and the CRT coupling unit 130 of the CRT 120 coupled thereto. In order to install a plurality of reinforcement protrusions 140 at the upper and lower edges of the CRT coupling portion 130 of the front mask 110, the reinforcement protrusions 140 protruding from the CRT coupling portion 130 are provided. One, at the L / 2 position of the upper and lower width L of the CRT coupling unit 130, and two at the position of L / 3, respectively.

At this time, the protruding height of the reinforcing protrusion 140 is, as shown in Figure 4, the interval (t) between the CRT coupling portion 130 of the front mask 110 and the reinforcing protrusion 140 of the CRT 120 coupled thereto. Each of the reinforcing protrusions protruding to 0.5mm or less, respectively, and the protrusion height of the reinforcing protrusions 140 protruding above and below the CRT, the CRT 130 and the reinforcing protrusions 140 When the space (t) between the ()) is formed to be 0.5mm or more, the mutual space is too large, the vibration mode of the front mask is transmitted to the CRT as it is, the distance between the reinforcement projections 140 of the CRT coupling unit 130 When (t) is 0 mm, the CRT 120 is not completely adhered to the CRT coupling part 130 of the front mask 110, and a certain gap exists due to surface contact with the CRT coupling part 130. CRT where front mask and CRT are combined Noise is caused by interference caused by different vibrations in the coupling portion.

Accordingly, the spacing between the reinforcing protrusion 140 and the Braun tube coupling portion 130 installed between the Braun tube coupling portion 130 and the Braun tube 120 of the front mask 110 according to the present invention is preferably 0.3 mm. By forming a, by the reinforcement projections 9140 to the CRT coupling unit 130, the CRT tube 120 is not in contact with the surface, it is possible to make a predetermined line contact.

At the same time, both sides of the CRT coupling 130 of the front mask 110 have two reinforcement at the h / 2 position and the h / 3 position at the height h of the CRT coupling 130. Protruding projections, respectively, wherein the interval (t) between the CRT coupling unit 130 and the CRT tube 120 is the same as the reinforcement protrusions 140 of the upper and lower sides of the CRT coupling unit 130, respectively. Protruding to 0.5mm or less so that both sides can also be a line contact, rather than a surface contact, vibrations due to the interference generated in the CRT coupling portion 130 between the front mask 110 and the CRT 120 Suppressed.

As described above, the reinforcement protrusions 140 are installed at the same positions as those in the embodiment, respectively, at the same positions as above, below, and both sides of the CRT coupling portion 130 of the front mask 110, and the reinforcement protrusions 140 are provided. Excitation experiment of the CRT coupling unit 130 through the speaker for each installation point of the.

This is shown in the graph of Fig. 5 (A)-(R) the sound pressure was measured while switching the frequency with the sound level meter placed in front of 30Cm of each measurement portion of the CRT.

When the level measurement result of the sound pressure according to the frequency conversion according to FIG. 5 is shown, the reinforcement protrusion 140 is not installed in the CRT coupling unit 130 between the front mask 110 and the CRT 120 of FIG. 5. Compared to the graphs (b)-(r), as shown in the graphs of FIGS. 5 (a)-(q), the reinforcement protrusions are provided in the CRT coupling portion 130 between the front mask 110 and the CRT 120. By installing the 140 at regular intervals, it can be seen that the peak of sound pressure is greatly reduced and vibration due to interference is reduced.

Therefore, the vibration generated in the CRT coupling unit 130 between the front mask 110 and the CRT tube 120, which is a structure by the speaker sound source, has a predetermined thickness at the top, bottom, and both sides of the CRT coupling unit 130. By installing the reinforcing protrusions 140 at regular intervals, the CRT coupling unit 130 may be in line contact with the CRT 120, and the CRT coupling portion between the front mask 110 and the CRT 120 is formed. It is possible to suppress the vibration caused by the interference generated in 130.

As described above, according to the apparatus for preventing vibration of a television set by a speaker sound source, the interference phenomenon generated at the coupling portion of the front mask and the cathode ray tube by the speaker sound source when the television speaker is operated is installed at a predetermined interval in the coupling portion of the cathode ray tube. By minimizing the reinforcement projections, the vibration and noise are significantly reduced, as well as increasing the rigidity of the CRT coupling portion, thereby improving the sound quality of the television.

Claims (3)

The square tube coupling portion 130 is formed inside the front mask 110 of the TV, so that the front surface of the CRT 120 is installed, and the speaker 150 is installed on both sides of the CRT 120, respectively. In the television becoming, Protruding the reinforcing projection 140 of a certain thickness around the CRT coupling unit 130 of the CRT 120 coupled to the front mask 110 at regular intervals to reduce the resonance phenomenon due to interference with the CRT coupling unit 130. Vibration preventing device of the TV set by the speaker sound source, characterized in that. According to claim 1, wherein the front mask 110 and the Braun tube 120 is coupled to the upper portion of the Brown tube coupling portion 130, protruding protrudingly installed on the lower circumference, the upper and lower width of the Brown tube coupling portion in the width direction (L) is installed at the L / 2 position and the L / 3 position, respectively, the reinforcement projections 140 at the h / 2 position and h / 3 position of the height (h) of both sides of the CRT coupling unit 130 Vibration preventing device of the TV set by the speaker sound source, characterized in that each installed. According to claim 1 or 2, wherein the front mask 110 and the Braun tube 120 is coupled to the reinforcing protrusions 140 protruding to the upper, lower and both sides of the CRT coupling portion 130 is a front mask ( An apparatus for preventing vibration of a television set by a speaker sound source, characterized in that a gap between the reinforcing protrusions 140 of the CRT coupling unit 130 of the 110 is 0.5 mm or less, respectively.