KR100212130B1 - Speaker system for television receiver - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker system for a television, and in particular, a speaker mounted on both sides of a television cabinet, a front amplification member mounted on a front side of the speaker to amplify sound waves radiated to the front side, and mounted on a rear side of the speaker. In the speaker system for a television comprising a rear amplification member for collecting and amplifying sound waves radiated to the rear side, the front amplification member 20 is a sound absorbing material 24 is attached to the rib (20b) formed inside the front end, The rear amplification member 30 has an amplifying horn 34 having a sound collecting portion 32 for collecting only a part of sound waves radiated to the rear of the speaker 10 and a cutout 36 cut at one side, and the cutout ( And a partition plate 38 detachably coupled to 36).

Therefore, in the present invention, by amplifying the sound waves radiated from the front and rear amplification members to the front and rear sides of the speaker, the amplification of the middle and high as well as the bass, especially the ultra low, is amplified so that the audible space of the sound waves is increased and at the same time more sharpness In addition, as the size of the mold decreases as the parts of the rear amplification members are separably coupled to each other, manufacturing cost is further reduced, and sound waves radiated to the front of the speaker are absorbed in the sound absorbing material to minimize generation of standing waves. Braking is applied to the lower ranges for a clearer sound.

Description

Speaker system for television

The present invention relates to a loudspeaker system for television, and more particularly, to amplify low and high frequencies, which are discharged to the front of the speaker, as well as to generate the sound from the sound waves radiated forward. The present invention relates to a speaker system capable of minimizing generation of standing waves.

In general, a speaker that converts an electrical signal into a sound wave signal and radiates it into free space is most commonly used as a speaker. When such a speaker is used, a strong cylindrical magnetic field occurs in a magnet located between a center pole and a yoke. A force is applied to the voice coil installed in the magnetic field as the current flows, and this force vibrates the corn-shaped diaphragm made of paper to emit sound waves.

Conventionally, a television equipped with such a speaker has a pair of speakers 3 fixedly installed on both sides of the rear of the cabinet 2 in which the cathode ray tube 1 is mounted inside, as shown in FIG. The inside of the cabinet 2 has a structure in which a sound wave passage 4 having an opening 4a for inducing sound waves radiated from the speaker 3 to radiate to both sides of the cathode ray tube 1 is formed.

However, this conventional technique not only amplifies the sound waves radiated from the speaker moving inside the sound wave passage installed inside the cabinet as much as the interference phenomenon, but only the sound waves radiated forward among the sound waves generated from the speaker. By induction, the sharpness of the sound is significantly lowered. In particular, there are problems such as the inability to obtain harmonious and delicate sound due to the low emission of the low range.

In addition, there is a problem in that standing waves are generated in the sound waves radiated into the sound wave passages, which significantly affect the amplification and the clarity of the sound waves.

Accordingly, the present invention has been invented to solve the above-mentioned problems of the prior art, and an object of the present invention is to collect and amplify and radiate some of the sound waves radiated to the front, as well as the rear surface, from the speaker. In addition, the present invention provides a speaker system for a television that can increase the amplification efficiency of high and low frequencies and at the same time obtain a clearer and harmonized sound.

Another object of the present invention is to provide a speaker system for television that can minimize the generation of standing waves in the sound waves radiated from the speaker and at the same time improve the braking power of the low range.

1 is a schematic diagram showing a speaker system applied to a conventional television.

2 is an exploded perspective view showing a speaker system for a television according to a preferred embodiment of the present invention.

3 is a cross-sectional view showing a coupling state of the speaker system for television according to the present invention.

4 is a perspective view showing a television to which the speaker system according to the present invention is applied.

* Explanation of symbols for main parts of the drawings

10: speaker 20: front amplification member

20b: rib 22: buffer member

24: sound absorbing material 30: rear amplification member

32: sound collector 34: amplified horn

36: cutout 36a: engaging hole

36b: guide hole 38: partition plate

38a: hook protrusion 38b: guide pin

A speaker system for a television according to the present invention for achieving the above object includes a speaker mounted on both sides of the television cabinet, a front amplification member mounted on the front side of the speaker to amplify sound waves radiated to the front side, and the speaker In the speaker system for a television comprising a rear amplification member mounted to the rear side of the rear amplification member for collecting and amplifying sound waves radiated to the rear side, the front amplification member is attached to the sound absorbing material in the rib formed inside the tip, the rear amplification member is It is characterized in that it comprises a sound collecting unit for collecting only a part of the sound waves radiated to the rear of the speaker, and an amplification horn having one side incision, and a partition plate detachably coupled to the incision.

Therefore, in the present invention, by amplifying the sound waves radiated from the front and rear amplification members to the front and rear sides of the speaker, the amplification of the middle and high sound as well as the low and especially the ultra low sound is made to increase the audible space of the sound wave and at the same time more sharpness of the sound In addition, as the size of the mold decreases as the parts of the rear amplification members are separably coupled to each other, manufacturing cost is further reduced, and sound waves radiated to the front of the speaker are absorbed in the sound absorbing material to minimize generation of standing waves. By applying braking to the low range, a clearer sound is obtained.

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

2 is an exploded perspective view showing a speaker system for a television according to the present invention, FIG. 3 is a cross sectional view of a combination of a speaker system for a television according to the present invention, and FIG. 4 is a schematic view showing a speaker to which the present invention is applied.

In the drawing, a front amplification member 20 having an amplification part 20a for amplifying sound waves radiated forward is installed on the front side of the speaker 10, and a rear side of the front amplification member 20 is interposed with a speaker 10. The rear amplification member 30 for amplifying the sound waves radiated to the rear is provided.

The front amplification member 20 mounted toward the front side inside the cabinet 2 forming the appearance in a television is sound waves radiated to the front of the speaker 10, in particular, the mid and high range radiated from the center of the speaker 10. Will amplify the sound waves.

Between the front amplification member 20 and the speaker 10 is interposed a buffer member 22 having a through-hole 22a for absorbing and blocking the vibration or impact force generated in the speaker 10.

More preferably, the through hole 22a formed in the buffer member 22 is formed to be approximately equal to the cone diameter of the speaker 10.

On the other hand, inside the front end of the front amplification member 20, the sound wave emitted from the speaker 10 is returned back to suppress the generation of standing waves affecting the speaker 10, and at the same time to apply a low-frequency braking material 24 ) Is attached to both sides.

In addition, the sound absorbing material 24 is inserted into and installed in the ribs 20b formed at both edges of the front amplification member 20, and the material may be glass fiber or felt.

The glass fiber applied as the material of the sound absorbing material 24 is used by immersing a glass fiber having a very small diameter in a resin such as phenol and then curing it. The felt has a large mass and does not absorb much in the middle and high ranges, but is suitable for low sound. Since damping may be provided, the vibration of the front and rear amplification members 30 due to sound waves may be suppressed.

On the other hand, the rear amplification member 30 is a sound collector 32 for collecting a portion of the sound waves radiated to the rear side of the speaker 10 on one side, and amplified sound waves extending from the sound collector 32 It is provided with an amplifying horn 34 whose diameter gradually increases.

In addition, the amplification horn 34 forms a cutout portion 36 having one side cut off, and the cutout portion 36 has a divider 38 having a shape substantially the same as that of the amplification horn 34. Combined.

On the front amplification member 20, the buffer member 22 is inserted into the front end of the front amplification member 20, the speaker 10 located on one side of the buffer member 22 and the rear surface of the speaker 10 The rear amplification member 30 to be positioned is completed by one fastening operation by a fastening means such as a bolt.

A plurality of hooking holes 36a and guide holes 36b are formed at both sides of the cutout 36, and the split plate 38 is hooked into the locking holes 36a and the guide holes 36b. The projection 38a and the guide pin 38b are formed to protrude.

In the drawing, the end of the rear amplification member 30 is shown to be upward but not limited thereto. For example, the rear amplification member 30 may be formed to face the side, the bottom, or the rear of the television.

In the speaker system for television according to the present invention configured as described above, when the corner vibrates by the strong cylindrical magnetic field generated in the speaker 10 and generates sound waves, the sound waves are radiated to the front side of the speaker 10 and at the same time the rear surface. Radiation is also done to the side.

The sound waves radiated to the front of the speaker 10 are transmitted through the through-hole 22a and the front amplification member 20 formed in the buffer member 22, and then radiated toward the front side of the television.

At this time, in particular, the high-pitched sound generated at the center of the speaker 10 is sufficiently amplified while passing through the amplification unit 20a formed inside the front amplification member 20, and thus formed on both sides of the television. In the front grill (G1) is amplified in the front amplification member 20, the high-frequency radiation is made.

In addition, some of the sound waves introduced into the amplification unit 20a formed in the front amplification member 20 are absorbed in the sound absorbing material 24 to prevent the generation of standing waves and at the same time, the low range is damped so that braking is performed. Accordingly, the sound waves emitted are prevented from interfering with the speaker 10 again, thereby obtaining a clearer sound.

In addition, the shock absorbing force caused by the vibration of the speaker 10 is absorbed and blocked as the shock absorbing member 22 is interposed on the front side of the speaker 10.

Meanwhile, some of the sound waves radiated to the rear side of the speaker 10 are collected into the rear amplification member 30 and then sufficiently amplified to radiate through the upper grille G2 formed on the upper side of the television cabinet 2. .

That is, some of the sound waves radiated to the rear side of the speaker 10 are introduced into the sound collector 32 formed at the front end of the rear amplification member 30 and then pass through the amplification horn 34 which gradually increases in diameter. Will be done.

In addition, the rear amplification member 30 is separately manufactured by the amplifying horn 34 having the cutout portion 36 and the divider plate 38 coupled to the cutout portion 36, thereby minimizing the mold during manufacturing. Can be significantly reduced.

In addition, the hook projections 38a and the guide pins 38b formed in the partition plate 38 are inserted into the plurality of engaging holes 36a and the guide holes 36b formed in the amplifying horn 34 to maintain the locked state. The amplification horn 34 and the partition plate 38 are separated from each other, as well as very easy to assemble.

As described above, according to the present invention, the sound waves radiated to the front side of the speaker are amplified by the front amplification member, and the sound waves radiated to the rear side are amplified by the rear amplification member. By increasing the audible space of the sound waves, the sound clarity is improved, and the rear amplification members are separably combined to reduce the manufacturing cost by miniaturizing the size of the mold. The sound waves are absorbed in the sound absorbing material to minimize the generation of standing waves and to apply a braking to the low range to obtain a clearer sound.

Claims (2)

A speaker mounted on both sides of the television cabinet, a front amplification member mounted on the front side of the speaker to amplify the sound waves radiated to the front side, and a rear mounted on the rear side of the speaker to amplify the sound waves radiated to the rear side In the speaker system for television comprising an amplifying member, the front amplification member 20 is a sound absorbing material 24 is attached to the rib 20b formed inside the front end, the rear amplification member 30 is a An amplifying horn 34 having a sound collecting portion 32 for collecting only a part of sound waves radiated backward and an incision 36 cut at one side, and a partition plate 38 detachably coupled to the cut portion 36. Speaker system for a television comprising a. According to claim 1, wherein a plurality of engaging holes (36a) and guide holes (36b) are formed on the outside of the cutout 36, the outer side of the partition plate 38 is caught in the engaging holes (36a) And a plurality of hook protrusions (38a) and guide pins (38b) inserted into the guide holes (36b).