KR200271621Y1 - Headphone - Google Patents

Abstract

The present invention relates to a headphone with two earcups each having a loudspeaker or a plurality of multichannel speakers. The speakers each have their own separate acoustic chamber. Depending on the characteristics of each of the speakers, the speakers are installed in the front or rear of the individual acoustic chamber. Accordingly, the speakers are each arranged at different positions or angles inside the ear cups to produce a clear sound field, prevent mixing of sound waves, and reduce distortion. In addition, a sound pressure with good distribution is formed inside each individual acoustic chamber. In addition, the surround sound effect can be improved to improve the fidelity of the original sound quality.

Description

Headphone {HEADPHONE}

The present invention relates to headphones, more particularly to headphones with ear cups provided with loudspeakers or multiple multi-channel speakers. The loudspeakers each comprise separate acoustic chambers according to their acoustic characteristics and are arranged at different locations in the acoustic chamber.

As digital technologies in digital audio video products, such as DVD players or surround amplifiers, have been enhanced and popularized, digital audio video products have their basic Dolby Digital and DTS via digital signals that are decoded to output analog signals to speakers. Has a decoding function. Thus, a DVD player or surround amplifier includes an analog output terminal of 5.1 channel sound signals for setting up a home theater system with a TV, DVD player, surround amplifier and 5.1 channel speakers.

1 is a perspective view of a home theater system. The DVD player or surround amplifier (not shown) inside the cabinet (A) is capable of transmitting 5.1-channel sound signals or multi-channel tone signals to the left speaker F (L) and the right speaker F (R) of the front main channel. ), The center channel speaker (C) and the rear speaker S (L) and the right speaker S (R) of the surround back channel, creating a great audio environment.

By 5.1 channel or multichannel sound output, the listener can enjoy the best sound effect. However, this can be a problem for people who are working and are hard at hearing sound. When headphones are used, the listener cannot enjoy the multichannel surround sound effects, where a conventional headphone plug (P; see FIG. 2A) is only capable of two-channel stereophonic effects, and the loudspeaker F This is because it is mounted only on the ear cup (B). In addition, since there is nothing in the two-channel headphones to feel the sound field and the sound pressure, the conventional two-channel headphones cannot improve the sound effect.

Because headphones are perceived as an accessory rather than a core technology of stereo sets and their profit margins are low, few people want to invest in the development of headphones technology. Therefore, the headphones currently in use only provide two-way original sound. This is because conventional headphone plugs have only two or three electric poles (one of the three true poles is for grounding), so a single plug cannot carry multichannel acoustic signals.

Currently, 5.1 channel headphones are used, but this kind of product does not reproduce the original sound of the 5.1 channel, but only simulates the 5.1 decoding function. In addition, undesirable effects may occur if the simulated sound is not properly processed.

As shown in Fig. 2B, by the inventor of the present invention, the multi-channel headphone plug P 'is inserted into a phone jack of a DVD player or a surround amplifier so that the multi-channel sound signals are different from each other. Can be delivered. However, the front main speaker F, the center channel speaker C and the rear surround speaker cannot be provided inside the ear cup B, because the space is limited, and accordingly The channel speaker will not have the same sound effect as the home theater system shown in FIG. Also, different channel sounds may be mixed with each other to have the expected sound quality and efficacy of multichannel sound effects.

Therefore, how to obtain a high-quality sound effect with two-channel or multi-channel headphones is a problem to be solved of the present invention.

1 is a perspective view showing a basic audio environment of a home theater system.

Figure 2A is a perspective view of a conventional headphone.

Figure 2B is a perspective view showing another conventional headphones.

3 is a view schematically showing a first embodiment of the present invention;

4 is an exploded perspective view of FIG. 3.

5 is a cross-sectional view showing a first embodiment of the present invention.

Figure 6 is a view showing another cross section of the first embodiment of the present invention.

7 is a plan view showing a cover of the first embodiment of the present invention with three channel speakers.

8 is a plan view showing a cover of the first embodiment of the present invention with four channel speakers.

9 is a cross-sectional view showing a second embodiment of the present invention.

10 is a cross-sectional view showing a second embodiment of the present invention under operating conditions.

11 is a cross-sectional view showing a second embodiment of the present invention at different operating conditions.

12 is a cross-sectional view taken along the line 12-12 of FIG.

Figure 13 is a schematic view showing a second embodiment of the present invention in use.

<Description of the symbols for the main parts of the drawings>

1, 1A: Ear Cup

2: hair band

10: housing

11, 12, 13: acoustic chamber

20: multichannel speaker

21: main speaker

22: center channel speaker

23: surround speakers

24: loudspeaker

32: sound output hole

A first feature of the present invention is to eliminate the above mentioned problems and to provide headphones with two earcups each comprising a plurality of multichannel speakers. The speakers each have their own acoustic chamber. Due to the nature of the speakers, the speakers are installed in the front side or rear side of each acoustic chamber. Thus, the speakers are arranged at different positions or angles inside the ear cups, respectively, to create a clear sound field, prevent mixing of sound waves, and reduce distortion. In addition, a well distributed sound pressure is formed inside each individual acoustic chamber. Then, the surround sound effect can be improved to improve the fidelity of the sound quality of the original sound.

A second feature of the present invention is to provide a headphone having two earcups each having a loudspeaker including at least one individual acoustic chamber, and to improve two-way stereo sound effect by placing the individual acoustic chambers in different positions. have.

The above and other objects of the present invention will be fully understood by the accompanying drawings and the following detailed description.

First embodiment:

First, in FIG. 3, the headphone of the first embodiment of the present invention includes a left and right earcup 1, a headband 2 connected to both of these earcups 1, and one of these earcups 1. And a cord 3 extending from the ear cup. Inside each of the earcups 1 there are several different channel speakers (not shown) that produce multichannel sound effects but the sound channels are not mixed with each other to achieve the expected multichannel sound quality. It is provided.

As shown in FIGS. 4-6, an application embodiment of the ear cup 1 includes a housing 10, a plurality of multichannel speakers 20, a cover 30, and a sealing set 40. It includes.

There is an opening at the top of the housing 10, the shape of which is preset, a plurality of air holes around the rim of the housing, and each of the acoustic chambers 11, 12, 13 of the housing has a plurality of multi-channel speakers ( 20) is accommodated.

The multichannel speaker 20 comprises at least a potential main speaker 21, a center channel speaker 22 and a rear surround speaker 23, these three speakers being arranged in their acoustic chambers according to their respective characteristics. .

The cover 30 is arranged in the opening of the housing 10 and has a plurality of partitions 31 which divide the cover 30 into several identical sections, the several sections being connected to the speakers 21, 22, 23. There is a sound output hole 32 located toward.

A suture set 40 is mounted on top of the cover 30, which has a locating ring 41 fixed to the cover 30, which is attached to the locating ring 41 for sound output. There is provided a thin face cloth 42 covering the sound output hole 32 and an ear cushion 43 covering the locating ring 41 and the thin face cloth 42 without undesirable effects. Ear cushion 43 is made of a soft material such as sponge, it is made to cover the ear.

The acoustic chambers 11, 12, 13 are formed in a tubular shape, a cone shape, or the like.

5 and 6, the loudspeakers 21, 22, 23 in the interior of the housing 10 are separated from each other by the respective acoustic chambers 11, 12, 13, so that the sound field unique to each loudspeaker is unique. will produce a sound field. In examining the present invention, it has been found that each speaker requires a different sound field, depending on the characteristics and requirements of the sound effect. The center channel speaker 22 is preferably installed at the potential of the acoustic channel 11 and behind the acoustic output hole 32. The potential main speaker 21 and the center channel speaker 22 require sound fields of different sizes. The potential main speaker 21 requires a relatively larger acoustic chamber 11 and is mounted at the rear end of the acoustic chamber 11. In addition, it is preferable that the potential main speaker 21 be installed at a slight angle. Each sound field can be adjusted to suit the needs of the product. Since the center channel speaker 22 is installed adjacent to the sound output hole 32, the sound effect is direct and can be felt. In addition, the acoustic chamber 12 can prevent the center channel speaker 22 from mixing with sound waves of other acoustic channels. The potential main speaker 21 is basically installed at a slightly lower position than the center channel speaker 22, and the acoustic outputs of the potential main speaker and the center channel speaker are made different in frequency so as to achieve a clearer sound field. The rear surround speaker 23 is installed in the extended acoustic chamber 13, so that the output of sound waves can be delayed, so that the sound can be felt as coming from the rear. In addition, after the sound has passed through the acoustic chamber 13, a more expanded surround sound field is created. When the mouthpiece of the rear surround speaker 23 is enlarged, the surround sound effect can be enhanced. According to the respective characteristics of the speakers 21, 22, 23, these speakers are installed at the front end or the rear end of the acoustic chamber, and are arranged at different heights and angles inside the ear cup 1, so as to be unique to each speaker. It creates a clear and clean sound field, prevents different sound waves from mixing or interfering with each other, and realizes the unique sound sense of speakers. In addition, since the multi-channel sound frequency and sound wave range are separate, the original sound can be reproduced and the distortion is reduced to achieve a three-dimensional clear sound effect with high fidelity.

The shape and size of the acoustic chambers 11, 12, 13 can be made to suit the specifications of the headphones. The acoustic chambers 11, 12, 13 shown in FIGS. 4 to 6 are merely illustrated as an application embodiment of the present invention. Indeed, the shape of the acoustic chamber is adjustable to balance the acoustic range of each acoustic channel. In addition, the acoustic chambers 11, 12, 13 can be combined into the interior of the housing 10 to be integral.

The sound coming from the speakers 21, 22, 23 through the sound output hole 32 can be separated by the partition 31 on the surface of the cover 30, thereby reducing the interference of the sound and making it clearer and finer. This allows the listener to enjoy multichannel sound effects with improved sound quality.

7 is a plan view of the cover 30 of the above-mentioned embodiment. Three speakers (not shown) are provided inside the cover 30 to reproduce the potential main channel sound effect F, the center sound effect C and the surround sound effect S. FIG. The ear cup 1 may not only be made into a round shape but may also be made into a cylindrical shape as shown in FIG. 8. In addition, a special sound channel, for example a woofer sound channel W, may be added to the three sound channels. At this time, the woofer and each acoustic channel (not shown) should be able to prevent the interference of sound waves with each other.

Second embodiment:

From the above-mentioned embodiments, it can be seen that each acoustic chamber is important. A second embodiment of the present invention is to use a loudspeaker 24 provided inside the housing 10 of one of the left or right ear cups 1A (see Fig. 9). In the opening of the housing 10 a cover 30 and a closure set 40 are arranged. The principle of the first embodiment and the second embodiment of the present invention is the same. The second embodiment differs from the first embodiment in that a loudspeaker is provided inside the ear cup 1A.

The loudspeaker 24 is installed in a predetermined acoustic chamber 14 according to the characteristics of one speaker, and is arranged at a preset position or angle of the ear cup 1A.

As shown in Fig. 9, the loudspeaker 24 is installed at a lower position than the individual acoustic chamber 14 according to the characteristics of one speaker, so that the sound of the loudspeaker 24 is sounded with the individual acoustic chamber 14 Output through the output hole (32). It is possible to change the output tone frequency depending on the position of the loudspeakers 24 in the individual acoustic chambers 14. By lengthening the individual acoustic chambers 14, a clearer and more spectacular low frequency sound can be obtained. When the loudspeaker 24 is installed such that its inclination angle is 15-20 °, the output sound wave is not in direct contact with the listener's ear but revolves in the ear, creating a sound expansion effect. For this reason, the main channel speaker 21 of the first embodiment of the present invention is also installed obliquely.

In addition, when the second acoustic chamber 15 is mounted to the rear of the loudspeaker 24, the sound effect is further compressed and output, the sound effect is more grand and presence. This second acoustic chamber 15 may be provided to the main channel speaker 21 of the embodiment shown in FIGS. 5 and 6 to produce the same sound effect if there is enough space.

10 shows another application of the second embodiment, in which a second acoustic chamber 15 is mounted on the surface of the cover 30. 11 is another application example of the second embodiment. In these two applications, the second acoustic chamber 15 is larger in diameter than the individual acoustic chambers 14 and protrudes from the surface of the cover 30 so that it is closer to the listener's ear. In addition, as shown in FIG. 12, the second acoustic chamber 15 is located eccentrically on one surface of the individual acoustic chambers 14 and has a plurality of sound output holes 32 in the eccentric region 33. do. Thus, the potential sound of the loudspeaker 24 is output from the front of the individual acoustic chamber 14, and sound waves at the rear of the loudspeaker are reflected or circulated around it. As a result, the sound wave is output through the sound output hole 32 of the eccentric region 33. Accordingly, the sound output through the output hole of the eccentric region is near the inner wall of the second acoustic chamber 15 above the eccentric region 33 and the sound output from the front surface is a resonance area (D). Will make This sound effect will be the most important thing to listen to percussion music. Therefore, in the second embodiment of the present invention, as shown in Figs. 10 to 12, the second acoustic chamber 15 is installed in the vicinity of the individual acoustic chamber 14, so that the tube in the tube (tube) in tube). Thus, you can create great sound effects with just one speaker. Compared with the conventional headset, the present invention can reproduce a more compressed and realistic sound to produce a high fidelity stereo sound.

The loudspeakers 24 are arranged at the top of the individual acoustic chambers 14 and inside the second acoustic chambers 15 to increase the resonance point. In addition, the second acoustic chamber may extend to the bottom of the housing 10, so that the sound waves are reflected and stayed faster, creating another sound effect. The length and installation method of the individual acoustic chambers 14 shown in FIG. 9 are applicable, and the best installation method can be selected according to the shape of the headphones so that the loudspeaker achieves the expected effect.

Figure 13 is a schematic diagram showing a case in which the second embodiment of the present invention is in use. Each of the left and right earcups 1A includes two-way stereo speakers with the individual acoustic chambers 14 mentioned above, so that the output path of the sound waves is slightly inclined compared to conventional two-way headphones. Thus, a space can be used between the ear cups and the ears of the listener, so that the individual acoustic chambers 14 can further compress the stereo sound effect, create a realistic and clear sound.

Since the two embodiments of the present invention mentioned above are based on separate acoustic chambers to enhance the sound effect of the headphones, clear, non-interfering and balanced reproduction of the original sound are possible. Therefore, the present invention has industrial applicability and advances.

The above-described embodiments of the present invention are capable of many variations and modifications without departing from the scope of the present invention. Accordingly, the present invention is disclosed to enhance progress in science and useful art and is only to be limited by the appended claims.

The present invention provides a headphone with two ear cups each including a plurality of multichannel speakers and by placing each speaker in a different position or angle inside the ear cup, thereby creating a clear sound field and mixing sound waves. It is possible to prevent and reduce distortion, form a well-distributed sound pressure inside each individual acoustic chamber, and improve the surround sound effect to improve the fidelity of the sound quality of the original sound.

In addition, the present invention provides a headphone having two ear cups each having a loudspeaker including an individual acoustic chamber, and by placing the individual acoustic chambers in different positions, it is possible to improve the two-way stereo sound effect.

Claims (6)

In the headphones with two ear cups, The two ear cups are each A housing of a preset shape having an opening at an upper end thereof and accommodating a plurality of multichannel speakers including individual acoustic chambers therein; A plurality of multichannel speakers comprising at least a potential main speaker, a center channel speaker and a rear surround speaker, the speakers being arranged in the respective acoustic chambers corresponding thereto according to their characteristics; A cover disposed in the opening of the housing, the cover having a plurality of sound output holes facing the speaker; And a suture set mounted on the cover to form a completed headset. The headphone according to claim 1, further comprising a woofer in the multichannel speaker. The headphone of claim 1, wherein the multichannel speakers are disposed at different heights or angles by the respective acoustic chambers inside the housing. In the headphones with two ear cups, The two ear cups are each A housing of a preset shape having an opening at an upper end thereof and having a loudspeaker containing individual acoustic chambers therein; A loudspeaker disposed inside the individual acoustic chamber preset according to a feature of a speaker and positioned at a predetermined place or angle inside the ear cup; A cover disposed in the opening of the housing, the cover having a plurality of sound output holes; And a suture set mounted on the cover to form a completed headset. 5. The headphone of claim 4, wherein the loudspeaker is mounted obliquely at an angle of 15-20 ° at a predetermined position of the acoustic chamber. The method of claim 4, wherein the individual acoustic chamber is provided with a second acoustic chamber having a larger inner diameter on the outer surface, disposed eccentrically on one surface of the individual acoustic chamber, protruding above the surface of the cover, Headphones wherein the sound output hole is included in the eccentric region.