CN1264381C - Improved earphone - Google Patents

Abstract

An improved earphone comprises an earphone body, wherein the earphone body comprises a shell which is arranged according to a preset shape, the shell is provided with an opening, a preset number of multi-channel loudspeakers are arranged in the shell, and each multi-channel loudspeaker is provided with an independent sound chamber; several multi-sound channel horns, including at least front main sound channel horn, central sound channel horn and rear surround horn, and according to the characteristics of all sound channel horns making them respectively be placed in the preset position of every independent sound chamber; a cover body is arranged at the opening of the shell, and the surface of the cover body is provided with sound outlet holes corresponding to the sound channel horns; a cover body is arranged on the cover body. The invention can prevent sound wave from mixing and reduce distortion, and forms uniform diffusion sound pressure in each independent sound chamber, so that the earphone can listen to high-quality multi-channel music.

Description

improved headset

1. Technical field

The invention relates to an earphone, in particular to an improved earphone which prevents sound waves from mixing and reduces distortion so that the earphone can listen to high-quality multi-channel music.

2. Background technology

With the advancement of digital technology, digital audio-visual is gradually popularized. For example, DVD audio-visual disc players or surround amplifiers basically have functions such as Dolby Digital or DTS decoding, which can decode digital signals and output analog signals to make speakers sound. Therefore, there is a 5.1GH AUDIO OUT audio analog output terminal on the back panel of the DVD Player or the surround amplifier, so that "TV + DVD player + surround amplifier + 5.1-channel speaker" can construct the basics of a home cinema audio-visual environment.

As shown in Figure 1, it is the basic environment of a home cinema, and the DVD Player or surround amplifier (not shown) placed inside the cabinet (A) transmits 5.1-channel or multi-channel audio to the front The left and right speakers (F/L) and (F/R) of the main channel (front), the center channel (Center) speaker (C), and the left and right speakers of the rear surround channel (Surround) (S/L) and (S/R); thereby, an excellent audio-visual environment can be constructed.

However, although 5.1-channel or multi-channel output can enable the listener to enjoy the sound quality, if there are other people working or not listening to music in the audio-visual environment, it will affect others. Again, if put on earphone alone to listen to multi-channel surround music, then because the earpiece plug (P) of conventional earphone as shown in Fig. There is only one speaker (F), so it is a pity that you can only hear the stereo sound effect of the left and right channels, and cannot enjoy the multi-channel sound source. Moreover, for the two-channel earphone, it only places the loudspeaker (F) in the earphone body (B), and does not study its sound field or sound pressure characteristics, making the traditional two-channel earphone Sound effects cannot be improved.

Since earphones are often regarded as an accessory in audio, rather than the core of audio, and are products with low profits, few industry players invest a lot in research and development in this field. As a result, the entire The current earphones in the world can only hear the sound of two channels. The reason is that most of the earpiece plugs have two or three electrodes (one of which is the ground electrode) for a long time. Therefore, at most, only two sound signals can be transmitted, so that it is impossible to transmit multi-channel audio through a single plug. .

Although there is currently a product called a 5.1-channel headset on the market, this headset is only a "virtual 5.1 decoding function", not a real 5.1-channel reproduction of the original sound, and has the disadvantage of distortion. If it is not done well, it has the negative effect of painting a tiger instead of an anti-dog, so it is not perfect.

For this reason, the author has previously developed a multi-channel plug (P') as shown in Figure 2b, which can transmit multi-channel audio through the DVD Player or the phone jack of the surround amplifier. to a different speaker. However, the author found that if the front main channel speaker (F), the central channel speaker (C) and the rear surround speaker (S) of different channels are installed inside the earphone body (B), due to limited Due to the space of the headphone body (B), the multi-channel speakers cannot achieve the sound effect of the home theater as shown in Figure 1; instead, the sounds of different channels are mixed together, and the multi-channel surround sound effect cannot be presented at all. Expected quality and efficacy.

In view of this, how to make two-channel or multi-channel earphones can also hear high-quality sound effects is the problem to be solved by the present invention.

3. Contents of the invention

The object of the present invention is to provide an improved earphone, which is provided with several multi-channel speakers in the earphone body, and each channel speaker is equipped with an independent sound chamber respectively, and according to the characteristics of each channel speaker , respectively install them in the front or rear of each independent sound chamber, so that the speakers of each channel are set in different positions in the earphone body to have a clear sound field; thereby, it can prevent sound waves from mixing, reduce distortion, and Each independent sound chamber forms a uniform diffused sound pressure, or expands the surround sound field, so that the headphones can listen to high-quality multi-channel music.

Another object of the present invention is to provide an improved earphone, which is provided with a loudspeaker in the earphone body, and the loudspeaker is provided with at least one independent sound chamber, so that the loudspeaker is connected with the independent sound chamber. The configuration of different positions in the room can improve the effect of two-channel stereo.

The purpose of the present invention is achieved by the following technical solutions.

An improved earphone, comprising an earphone body, is characterized in that the earphone body includes a shell designed according to a predetermined shape, the shell has an opening, and a predetermined number of multi-channel speakers are arranged inside it, and each multi-channel The speakers have independent sound chambers; several multi-channel speakers, including at least the front main channel speaker, the central channel speaker and the rear surround speaker, are set in independent channels according to the characteristics of each channel speaker. The predetermined place of the sound chamber; a cover, installed on the opening of the housing, the surface of which is provided with sound holes relative to the speakers of each channel; a cover, arranged on the cover, to Constitute a complete headphone form.

In the aforementioned improved earphone, the multi-channel speaker also includes a subwoofer.

In the aforementioned improved earphone, the several multi-channel speakers are arranged at different heights or angles in the casing by means of independent sound chambers.

The object of the present invention can also be realized by adopting the following technical solutions.

An improved earphone, comprising an earphone body, characterized in that the earphone body comprises:

A housing made according to the predetermined shape, with an opening on the housing, and a loudspeaker is arranged inside it, and the loudspeaker has an independent sound chamber; the loudspeaker is based on the characteristics of the single loudspeaker , is located in the independent sound chamber, so that it is positioned at a predetermined position or angle in the earphone body; a cover is installed in the opening of the housing, and its surface is provided with a sound hole; a cover is located in the On the cover body, thereby forming a complete earphone form.

The aforementioned improved earphone, wherein the loudspeaker is installed at a predetermined position in the independent sound chamber at an angle of 15-20 degrees.

In the aforementioned improved earphone, a second sound chamber with a larger inner diameter can be provided on the periphery of the independent sound chamber, and the second sound chamber is eccentrically arranged on the side of the independent sound chamber and protrudes from the surface of the cover body. And a sound hole is provided on the eccentric area.

The present invention can respectively prevent sound waves from being mixed, reduce distortion, and form a uniform diffused sound pressure in each independent sound chamber, or expand the surround sound field, so that the earphone can listen to high-quality multi-channel music, and it is installed in the earphone body A loudspeaker, the loudspeaker is provided with at least one independent sound chamber, so that the loudspeaker is arranged in a different position from the independent sound chamber to improve the two-channel stereo effect.

4. Description of drawings

Fig. 1 is a schematic diagram of a basic audio-visual environment of a home cinema.

Fig. 2a is a schematic diagram of a conventional earphone.

Fig. 2b is a schematic diagram of another conventional earphone.

Fig. 3 is a reference diagram of the use state of the earphone according to the first embodiment of the present invention.

Fig. 4 is an exploded perspective view of the first embodiment of the present invention.

Fig. 5 is a sectional view of the first embodiment of the present invention.

Fig. 6 is a sectional view of the first embodiment of the present invention.

Fig. 7 is a schematic diagram of a shape and three sound channels of the first embodiment of the present invention.

Fig. 8 is a schematic diagram of another shape and four sound channels of the first embodiment of the present invention.

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

Fig. 10 is a cross-sectional view of another use state of the second embodiment of the present invention.

Fig. 11 is a cross-sectional view of another usage state of the second embodiment of the present invention.

Fig. 12 is a sectional view taken along line 12-12 shown in Fig. 11 .

Fig. 13 is a reference diagram of the usage state of the earphone according to the second embodiment of the present invention.

5. Specific implementation

Embodiment one

First, please refer to Figure 3, the first embodiment of the present invention, which includes two earphone bodies (1) on the left and right, and a connecting body (2) connecting the two earphone bodies (1), and any A multi-channel audio transmission line (3) connected to the earphone body (1). The earphone body (1) is internally equipped with a plurality of speakers of different channels (not shown in Fig. 3), and can transmit multi-channels with different sound effects respectively, and each channel will not be mixed with each other, and has the expected multi-channel Road quality.

In order to achieve the above purpose, please refer to Fig. 4, Fig. 5, and Fig. 6, an exploded perspective view and a cross-sectional view of a feasible embodiment of the earphone body of the present invention, which include:

A shell (10) is set according to the predetermined shape and has an opening, and the periphery is provided with elongated air holes (100), and a predetermined number of multi-channel speakers (20) can be accommodated inside it, and each multi-channel speaker (20) are all located in the housing (10), and have independent sound chambers (11), (12), (13) respectively.

Several multi-channel speakers (20), which at least include a front main channel speaker (21), a center channel speaker (22) and a rear surround speaker (23), and according to the characteristics of each channel speaker, make it They are respectively set at predetermined places of each independent sound chamber.

A cover (30) is installed in the opening of the aforementioned casing (10), and its surface is separated by several spacers (31) relative to the aforementioned independent sound chambers (11), (12), and (13). Paired equal areas, and each area is provided with a sound outlet (32) relative to the above-mentioned sound channel speakers (21), (22), (23).

A set of cover bodies (40) are located on the aforementioned cover body (30) to form a complete earphone form. A feasible embodiment of the cover body (40) includes: a positioning ring (41), which can be fixed on the cover body On the body (30), a layer of thin cloth (42) is covered above it to cover the aforementioned sound outlet (32), but it does not affect its sound output. An earmuff (43) is set on the positioning ring (41) and thin cloth On cloth (42), this earmuff (43) can be made of soft material such as sponge, and is the form that can cover ear.

The aforementioned independent sound chambers (11), (12), and (13) are tubes, cones or other shapes with through holes at the front and rear ends.

Please continue to refer to Fig. 5 and shown in Fig. 6, by means of the above-mentioned technical means, the present invention can make use of independent sound channels for each channel horn (21), (22), and (23) installed inside the housing (10). Chambers (11), (12), and (13) are blocked respectively so that they have their own independent sound fields respectively. And the present invention finds in experiment, and each sound channel loudspeaker is according to its sound effect characteristic and demand, and its required sound field also has difference; , and it is better to be close to the sound outlet (32), and the sound field size required by the front main channel speaker (21) and the central channel speaker (22) is also different, for example: the main channel speaker (21) must It is better to equip a larger independent sound chamber (11) at the rear end of the independent sound chamber (11), and slightly inclined. As for the actual needs of each sound field, it can be adjusted according to the requirements of the product. Equipped. And the front center channel speaker (22) is close to the sound hole (32), so the sound directly passes through, and the independent sound chamber (12) can prevent the sound waves of the center channel speaker (22) from mixing with the sound waves of other channels , and the main channel speaker (21) is basically located at a slightly lower position than the center channel speaker (22), so that the audio frequency output is different, and a more clear and clear sound field can be heard. As for, the rear surround loudspeaker (23) is arranged at the rear of the elongated independent sound chamber (13), like this, the output of sound waves can be delayed, making people feel that the sound is just at the rear. Furthermore, after the sound passes through its independent sound chamber (13), it has more diffuse surround sound fields, and if the independent sound chamber (13) is set to expand, the surround effect will be greatly improved. Therefore, the present invention enables each speaker (21)-(23) of different channels to be installed in front or rear of the independent sound chamber according to the characteristics of the individual sound chambers, so that each The sound channel speakers (21)-(23) are separately arranged at different heights and angles in the earphone body (1), so that each has a clear sound field, which can prevent sound waves from mixing and interfering, and each channel speaker is set to a different position. The height or angle can play the characteristics of each speaker, and separate the output multi-channel audio or sound range, so that the original sound can be reproduced, the distortion can be reduced, and the sound effect of lifelike original sound and three-dimensional space can be achieved.

Certainly, the shape and size of each aforementioned independent sound chamber (11), (12), (13) can be configured according to the needs of the earphone product, and the independent sound chambers (11), (12) shown in Fig. 4～Fig. 6 ), the shape of (13) is only a preferred feasible embodiment, and in fact its shape can be adjusted to achieve the sound field balance of each sound channel. Furthermore, each independent sound chamber (11), (12), (13) can also be directly integrally formed in the casing (10).

The spacer (31) on the surface of the aforementioned cover (30) can separate the sound paths sent by the sound outlets (32) of each channel speaker (21), (22), (23), reduce mutual interference, It can transmit clearer and more detailed music, and listeners can hear better quality multi-channel effects.

Please refer to shown in Fig. 7 again, it discloses the cover body (30) front schematic view of the multi-channel earphone of the above-mentioned embodiment, three channel loudspeakers (not shown in Fig. 7 ) that it is equipped with inside, can be respectively by each The sound outlet (32) transmits the main channel sound effect (F), the center channel sound effect (C) and the surround sound effect (S). Of course, the earphone body (1) is not limited to a circular body, it can also be set as a non-circular body (1') as shown in Figure 8, and it can also increase a special sound track in addition to the aforementioned three channels. channel, such as the subwoofer channel (W). For this reason, a subwoofer and its independent sound chamber (not shown in Figure 8) must be added inside the earphone body (1'), so that the sound waves of each other will not interfere with each other.

Embodiment two

As known from the aforementioned first embodiment, the present invention understands the importance of each independent sound chamber during the research and development process, so the present invention further applies it to the left and right two-channel earphones, that is, as shown in FIG. As shown in 9, in the casing (10) of any earphone body (1A) on the left and right, a loudspeaker (24) is provided, and its opening is provided with a cover (30) and a cover (40); Its main technical means are the same as those of the first embodiment, but this second embodiment is aimed at setting a loudspeaker (24) inside the earphone body (1A).

The above-mentioned loudspeaker (24) is arranged in a predetermined independent sound chamber (14) according to the characteristics of its single speaker, so that it is positioned at a predetermined position or angle of the earphone body (1A).

Wherein, as shown in Figure 9, the loudspeaker (24) is located under the independent sound chamber (14) according to the characteristics of its horn monomer, so that the sound of the loudspeaker (24) passes through the independent sound chamber (14) Afterwards, it is output by the sound hole (32) again, and now the loudspeaker (24) can change the audio frequency of its output in the position of the independent sound chamber (14), and when the independent sound chamber (14) is longer, the bass It is more obvious and solid. If the loudspeaker (24) is tilted at an angle of 15-20 degrees, the output sound wave will not directly approach and hit the human ear, but will form a whirling space sound field between the ear and the ear. Get a more open sound. Therefore, the main sound channel loudspeaker (21) of the first embodiment also adopts oblique installation, and its principle is just here.

If the second sound chamber (15) is set up again at the loudspeaker (24) rear, then the sound wave airflow can be made more cohesive, and the music output is thicker and more transparent. And in the embodiment shown in Fig. 5, Fig. 6, if space permits, this main sound channel loudspeaker (21) also can be provided with the second sound chamber (15), then can obtain identical sound effect.

Fig. 10 is another kind of state of use of the second embodiment, and it is arranged on the second sound chamber (15) on the cover (30) surface, and Fig. 11 then shows another possible state of use of it; In these two kinds of states of use, The inner diameter of the second sound chamber (15) is larger than that of the independent sound chamber (14), and protrudes from the surface of the cover (30) to make it closer to the ear. As shown in Figure 12, the second sound chamber (15) is eccentrically located on one side of the independent sound chamber (14), and its eccentric region (33) is provided with a plurality of sound outlets (32), causing the sound After the frontal sound of the horn (24) is sent out from the front of the independent sound chamber (14), the sound wave airflow at the back is reflected or diffracted in the housing (10), and is output through the sound outlet (32) in the eccentric area (33) , this sound forms a resonant zone (D) near the second sound chamber (15) inwall above the eccentric zone (33) and the sound wave output from the front, and this effect is the most significant when listening to percussion instruments. Therefore, it can be seen from Figures 10 to 12 of the second embodiment of the present invention that a second sound chamber (15) is further provided on the periphery of the independent sound chamber (14) to form a form of "a pipe within a pipe". , so that a single speaker has an excellent sound effect. Compared with the conventional earphone, the invention can make the earphone sound more cohesive and transparent, and has the stereo effect of reducing distortion and striving to reproduce the original sound.

And the loudspeaker (24) among Fig. 11 is arranged on the top of independent sound chamber (14), and second sound chamber (15) inside, can make sound resonance point increase like this, and second sound chamber (15) can extend to the bottom of the casing (10), so that the sonic airflow can be folded and diffracted more quickly, and another different sound effect can be obtained. As for the length and installation method of the independent sound chamber (14), all disclosed in Fig. 9 to Fig. 11 can be implemented, and the best installation form can be selected according to the processing method of the earphone shape, so that the loudspeaker (24) can play its intended role. sound effects.

Fig. 13 shows the reference figure of the earphone use state of the second embodiment of the present invention, and this second embodiment is provided with the two-channel stereo loudspeaker of aforementioned independent sound chamber (14) inside left and right earphone body (1A), and its Compared with the conventional two-channel earphones, the output sound wave can be slightly inclined, and there is room for maneuver between the ear and the ear, and the independent sound chamber makes the sound effect have a cohesive, transparent and clear stereo effect.

From the above, it can be seen that the technical features of the two embodiments of the present invention are the innovative design of the independent sound chamber based on the acoustic principle, which improves the sound effect function of the earphone, and transmits a clean, non-interfering, and balanced original sound reproduction, which is indeed Practicality and advancement.

To sum up, the structure disclosed in the present invention is unprecedented, and can indeed achieve the expected effect, and has value for industrial use, and fully meets the requirements of a new patent, so the application is filed according to law.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the technical solutions of the present invention.

Claims (6)

1, a kind of improved earphone comprises the earphone body, it is characterized in that, described earphone body comprises:

One housing according to predetermined body making and settlement has opening on the housing, its inside is provided with the multichannel loudspeaker of predetermined quantity, and each multichannel loudspeaker has independently tone chamber respectively;

Several multichannel loudspeaker comprise preposition main sound channel loudspeaker, center channel loudspeaker and rearmounted around loudspeaker at least, and comply with the characteristic of each sound channel loudspeaker, make it be separately positioned on each independently book office of tone chamber;

One lid is installed in the opening of described housing, and its surface is provided with phonate hole with respect to described each sound channel loudspeaker;

One cover body is located on the described lid;

Above-mentioned independent tone chamber is the body that the front and back end has through hole.

2, improved earphone according to claim 1 is characterized in that described multichannel loudspeaker also include the supper bass loudspeaker.

3, improved earphone according to claim 1 is characterized in that described several multichannel loudspeaker by tone chamber independently separately, make each sound channel loudspeaker be located at different height or angle positions in the housing.

4, a kind of improved earphone comprises the earphone body, it is characterized in that, described earphone body comprises:

One housing that is made according to the pre-setting body has opening on the housing, its inside is provided with a loudspeaker horn, and this loudspeaker horn has independently tone chamber;

Described loudspeaker horn is the characteristic according to its loudspeaker monomer, is located in the described independent tone chamber, makes it be positioned preposition or angle in the earphone body;

One lid is installed in the opening of described housing, and its surface is provided with phonate hole;

One cover body is located on the described lid;

Above-mentioned independent tone chamber is the body that the front and back end has through hole.

5, improved earphone according to claim 4 is characterized in that described loudspeaker horn is that inclination 15～20 degree angles are installed in precalculated position, described independent tone chamber.

6, improved earphone according to claim 4, the periphery that it is characterized in that described independent tone chamber can be provided with second tone chamber than large diameter again, this second tone chamber is the side that eccentric shape is located at independent tone chamber, and convexedly stretches in top surface, and is provided with phonate hole in the off-centre district.

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