KR0184048B1 - The structure for preventing screen vibration by speaker of image displayer - Google Patents

Abstract

The present invention relates to a structure for preventing screen shaking of a CPT by a speaker in a video display device. In the related art, since the vibration generated from the speaker is directly transmitted to a CPT through a solid medium, a severe screen shaking occurs. Due to this, when the user looks at the screen and works, the eyes are easily tired due to the shaking of the screen, and the image is not clear and the reliability of the product is deteriorated.

Particularly, in case of the monitor, the shadow mask material vibrates much stronger than the TV (TV), and because of the internal signal and the still image and the use of a full-fiber pattern, the screen shake is quite severe, so the 15-inch or more screen In the CPT manufacturers must be applied selectively, there was a problem that can not produce sound output of a certain value (0.5W × 2).

Therefore, the present invention is provided with a means for fastening the speaker to solve the above problems, and having a means for absorbing the vibration so that the vibration generated in the fastened speaker is not directly transmitted to the CPT, preventing the screen shake phenomenon This is a structure that prevents screen shake of CPT by speaker in video display device that can improve product quality by providing clear and clean screen by high wattage reproduction.

Description

Screen shake prevention structure of CPT by speaker in video display device

The present invention relates to a screen shake prevention structure of a cathode ray tube (CPT) by a speaker in an image display device. In particular, the vibration of the speaker is transmitted to the inside of the CPT to prevent the screen shake caused by vibrating the shadow mask. The present invention relates to a speaker fixing structure.

Referring to FIGS. 1 to 3, the structure and operation of the coupling structure of the CPT and the speaker in the conventional video display device are described as follows.

First, a speaker 1 for outputting a voice signal, a speaker edge portion 3 having a plurality of screw holes 2 formed therein so as to be integrated with the front surface of the speaker 1, and the screw 7 is fastened, and the screw hole. A rear sound container 5 having a plurality of speaker coupling fastening holes 4 formed therein so as to be coupled to the speaker 1 by screws 7 fastened to (2), and protruding from the upper and lower sides of the rear sound container 5; The CPT (9) by means of a CPT (9) formed with a plurality of cabinet coupling screw holes (6), a lug (8) to which the screw (7) is fastened, and a screw (7) fastened to the lug (8). Cabinet 11 formed with a plurality of CPT high information 10 so as to be coupled to the cabinet, and the cabinet 11 to be fastened with cabinet coupling screw holes 6 and screws 7 formed on the upper and lower sides of the rear sound container 5. Between the rear sound tube coupling boss 12 protruding from one side up and down of the rear sound tube coupling boss 12 protruding upward and downward Projecting edge is composed of the engaging rib 13 formed to be coupled with a speaker edge portion (3).

Referring to the operation of the coupling structure of the CPT and the speaker in the conventional video display device configured as described above are as follows.

First, look at the assembly process of the video display device,

After combining the CPT (9) formed with a plurality of lugs (8) in the cabinet (11) formed with a plurality of CPT high information 10,

When the screw 7 is fastened to the lug 8 and the CPT high profile 10, the CPT 9 and the cabinet 11 are coupled.

Subsequently, the speaker edge portion 3 having the plurality of screw holes 2 is coupled to the rear sound container 5 having the plurality of speaker coupling fastening holes 4 formed therein, and the speaker 1 having the front integrated therein. When the screw 7 is fastened to the hole 2 and the speaker coupling fastening hole 4, the speaker 1 and the rear sound container 5 are completed.

Therefore, when the combined speaker 1 and the rear sound container 5 is coupled to the cabinet 11 to which the CPT 9 is coupled,

When the rear sound container 5 is mounted on the rear sound box coupling boss 12 formed to protrude above and below one side of the cabinet 11, the speaker edge 3 of the speaker 1 is It is coupled to the edge coupling ribs 13 protruding between the rear sound box coupling boss 12 of the cabinet 11.

At this time, when the screw 7 is fastened to the rear sound box coupling boss 12 through a cabinet coupling screw hole 6 protruding from the upper and lower sides of the rear sound box 5, the rear of the speaker 1 is coupled. The cabinet 11 coupled with the sound container 5 and the CPT 9 is combined to complete the assembly of the image display device.

Therefore, when the user operates the assembled video display device, the video and audio information can be obtained by the CPT 9 and the speaker 1.

At this time, the vibration generated by the voice signal output from the speaker 1 is directly transmitted to the CPT (9) through a solid medium, the screen shake phenomenon occurs, looking at the path of the vibration transmission as follows.

That is, the vibration from the speaker 1 is transmitted to the cabinet 11 through the screw 7 and the rear sound box coupling boss 12, and this vibration is passed back to the CPT 9 through the CPT high information 10. Therefore, the screen shake phenomenon occurred in the screen of the CPT (9).

Therefore, in the related art, since the vibration generated in the speaker 1 is directly transmitted to the CPT 9 through a solid medium, a severe screen shake phenomenon occurs, and because of this, when the user works on the screen, the screen shake occurs. Not only can the eyes get tired easily, but the burns are not clear, which reduces the reliability of the product.

Especially, in case of the monitor, the shadow mask material vibrates much stronger than TV (TV), and because of the internal signal and still image and full-figure pattern, the screen shake is quite severe, so the constant value (0.5) There was a problem that a sound output of more than W × 2) could not be produced.

Therefore, the present invention is provided with means for fastening the speaker to the cabinet to solve such a problem, to reduce the vibration in the vibration transmission path from the speaker by the means to the cabinet to which the CPT is coupled By adopting the structure, it is possible to prevent the screen shake caused by the vibration of the speaker.

1 is a cross-sectional view showing a coupling structure of a CPT and a speaker in a conventional video display device.

2 is an exploded perspective view illustrating a coupling state between a speaker and a rear sound path in a conventional video display device.

3 is an exploded perspective view showing a coupling structure of a CPT and a speaker in a conventional video display device.

Figure 4 is an exploded perspective view showing a coupling state of the screen shake prevention structure of the CPT by the speaker in the video display device of the present invention.

5 is a front view showing the structure of a speaker in the video display device of the present invention.

* Explanation of symbols for main parts of the drawings

21: speaker 22: front buff plate

23: rear sound box 24: buffer

25 screw 26 screw hole

27: speaker edge portion 28: high information

29: edge portion coupling rib 30: fastening hole

31: primary vibration absorbing part 32: cabinet fixing hole

33: secondary vibration absorption unit 34: cabinet

35: rear sound tube high information 36: CPT high information

The configuration and operation of the screen shake prevention structure of the CPT by the speaker in the image display device of the present invention for achieving the above object will be described with reference to FIGS. 4 and 5.

First, a speaker 21 for outputting a voice signal, a front stub plate 22 coupled to the front of the speaker 21, and a rear stub coupled to the rear side of the speaker 21 are fastened to the front stub plate 22. It is composed of a band-shaped shock absorbing portion 24 attached to the fastening portion of the rear sound container 23, the fastened front pulley plate 22 and the rear sound container 23 to prevent and prevent air leakage.

In addition, a plurality of screw holes 26 and speaker edges 27 are formed in the speaker 21 so that the screws 25 are fastened while being integrated in the front surface.

The front baffle plate 22 has a high information (28) formed to protrude a large number in the inner side to be coupled to the speaker 21 in accordance with the fastening of the screw 25, and the speaker edge portion formed integrally with the front of the speaker 21 Edge engaging ribs 29 protruding in the inner center are formed so as to engage with (27).

In addition, the rear sound container 23 has a primary vibration absorbing part having a protruding pillar shape so that the vibration is reduced as the fastening hole 30 is processed and the vibration generated by the voice signal output from the speaker 21 passes. 31 and the voice signal output from the speaker 21 while the cabinet fixing hole 32 is processed to be fastened to the rear sound communication information 35 formed to protrude on one side of the cabinet 34 by a screw 25. The secondary vibration absorbing portion 33 protruding from the upper and lower side of the outer surface is formed to absorb the vibration generated by the secondary.

Reference numeral 36 is a CPT high information.

Referring to the operation of the screen shake prevention structure of the CPT by the speaker in the present invention is configured as follows.

First, look at the assembly process of the video display device,

The CPT high profile 36 formed in the plurality of cabinets 34 is coupled to the CPT by screws 25.

Thereafter, the screw holes 26 formed in the four corners of the speaker 21 are matched to the high information 28 formed in the front baffle plate 22 and then coupled using the screws 25.

Only one side of the speaker 21 is fixed to the front baffle plate 22 with screws 25.

When the speaker 21 is coupled to the front baffle plate 22 as described above, the speaker edge part 27 is coupled to the edge coupling rib 29 formed to protrude in the inner center of the front baffle plate 22. The speaker 21 and the front baffle plate 22 are fixedly coupled.

And, the rear sound box 23 is coupled to the rear of the speaker 21 is fixed to the front stub plate 22,

The speaker 21 is coupled to a position corresponding to the speaker 21 from the outside of the front baffle plate 22 through the high information 28 formed at the other side of the high information 28 fixed by the screw 25. The screw 21 is fastened to the fastening hole 30 formed in the rod-shaped primary vibration absorbing portion 31 formed in the inner portion of the rear sound container 23 via the screw hole 26 of the speaker 21. ) Is coupled to the front baffle plate 22 is coupled to the rear sound container (23).

That is, as shown in FIG. 4, the upper and lower screw holes 26 formed at the right side of the speaker 21 are fastened to the front baffle plate 22, and the upper and lower screw holes 26 formed at the left side are the front baffle plate. It is coupled with the 22 and the rear sound box (23).

At this time, the speaker 21 is fixed between the front baffle plate 22 and the rear sound container 23, and the band-shaped buffer at the fastening portion where the combined front baffle plate 22 and the rear sound container 23 are coupled. By joining the parts 24 together, the gap generated between the front baffle plate 22 and the rear sound box 23 is eliminated, and the vibration is reduced between the front baffle plate 22 and the rear sound box 23. It acts as a means.

As such, the rear sound container 23 fixed to the speaker 21 and the front baffle plate 22 is coupled to the cabinet 34.

Rear sound box information protruding from one side surface of the cabinet 34 through a cabinet fixing hole 32 formed in the secondary vibration absorbing part 33 protruding from the upper and lower side surfaces of the rear sound box 23 ( When the screw 25 is fastened to 35, the rear sound container 23 to which the speaker 21 and the front stub plate 22 are coupled is fixed to the cabinet 34, thereby completing the assembly of the video display device. .

Then, when the vibration is generated by the operation of the speaker 21, the vibration reduction structure through the vibration transmission path made by each means for fixing the speaker 21 to the cabinet 34 as follows.

The vibration generated according to the voice signal output from the assembled speaker 21 is transmitted to the front baffle plate 22 through the speaker 21, and the vibration generated from the speaker 21 is again transmitted to the rear sound box 23. Passing through the primary vibration absorbing portion 31 formed on one side of the inner), the vibration is primarily reduced and transmitted to the rear sound box (23).

At this time, the primary vibration absorbing portion 31 has a purpose to make the path of vibration long, and to have a shape so as to contact the rear sound box 23 with a minimum contact surface, forming a long rod or columnar column, etc. It can be carried out in various ways.

Then, the vibration transmitted to the front baffle plate 22 is reduced to some extent by the shock absorbing unit 24 coupled to the coupling portion between the front baffle plate 22 and the rear sound box 23 to be transmitted to the rear sound box 23. Will be.

The vibration transmitted to the rear sound container 23 as described above is transmitted to the secondary vibration absorbing part 33 protruding from the upper and lower sides of the rear sound container 23, which is a contact part with the cabinet 34, and the secondary vibration absorber 33. The vibration is absorbed by the vibration absorber 33 to be transmitted to the cabinet 34 through the rear sound communication information 35 formed to protrude on one side of the cabinet 34.

Here, the vibration transmitted to the cabinet 34 is transmitted to the CPT high information 36, which is a coupling portion of the cabinet 34 and the CPT while the strength is weakened, the vibration transmitted to the CPT high information 36 Since the majority is transmitted back to the CPT in a reduced state, the vibration generated by the voice signal of the speaker 21 does not significantly affect the CPT.

As described above, the present invention has a structure of each means for fixing the speaker to the cabinet, and the vibration transmitted from the speaker through such means is not transmitted directly to the CPT through the multi-stage path, Screen shaking caused by vibration can be prevented.

In addition, by reducing the vibration as described above so that the vibration of the speaker is hardly transmitted to the CPT, it is possible to provide a high output sound output to the user.

Claims (3)

A speaker, a front buzzer plate coupled to the front of the speaker, a rear sound pipe coupled to the rear of the speaker and fastened to the front baffle plate, and coupled to a fastening portion of the fastened front baffle plate and the rear sound holder are coupled together. It consists of a band-shaped buffer to prevent air leakage and to dampen and reduce vibration. The rear sound box has a shape so that the transmission path of vibration transmitted from the speaker can be lengthened while the fastening hole is processed. The primary vibration absorbing part protruding at the minimum contact surface and the cabinet fixing hole are screwed to the rear sound cylinder information protruding on one side of the cabinet to absorb the vibration generated by the voice signal output from the speaker. Secondary vibration absorbing part that protrudes in a structure having a certain elasticity in the upper and lower parts so as to Screen shake prevention structure of the cathode ray tube (CPT) by the speaker in the Youngxiang display device, characterized in that the formed. The structure of claim 1, wherein the edge coupling ribs protruding in the inner center are formed to be coupled to the speaker edges integrally formed on the front surface of the speaker. According to claim 1, wherein the shape of the primary vibration absorbing portion is made of a cylinder having a certain circumference to protrude from the inner rear of the rear sound box to prevent screen shake of the CRT by the speaker in the Youngxiang display device rescue.