KR200221482Y1 - Speaker - Google Patents

Abstract

The present invention relates to an acoustic receiver, which is wired or wirelessly connected to various acoustic devices, or is employed in one or more of the sound equipment itself, and outputs sound to the outside. Body portions 11a-11d constituting the housing such that 10 is formed; An annular coupler 13 supported on an inner wall of the body parts 11a-11d and disposed to be close to the resonance space 10 at a predetermined interval from an edge of the body parts 11a-11d; And a speaker unit (31) having a front side of the body complementarily coupled to the coupler (13) so as to output sound generated by switching electrical signals so that the sound can proceed toward the resonance space (10). It provides a sound receiver capable of reproducing high quality sound close to the original sound by amplifying the sound uttered from the speaker unit to the resonance resonance.

Description

Acoustic receiver {Speaker}

The present invention relates to an acoustic receiver for outputting sound generated by being connected to a main body of various acoustic devices by wires or wirelessly, and more particularly, to an acoustic receiver having a resonance space so that the sound is amplified and output.

In general, an acoustic receiver converts an electric signal into sound waves and outputs it to the outside. The acoustic receiver is connected to all acoustic devices such as portable and small cassettes, audio, telecommunication terminals or other multimedia devices provided with sound by wire or wirelessly. Types include earphones, headphones, and hands-free, which are directly plugged into the user's ears, so that sound is transferred directly into the ear, and is mounted on a body such as a cassette or connected to an audio wire or wirelessly to output sound to an external space. Includes a speaker.

Such an acoustic receiver typically includes a body frame connected to various acoustic devices, and a speaker unit accommodated in the body frame and having a permanent magnet, a movable coil, a diaphragm, and the like. That is, the speaker unit is installed so that the sound is uttered forward, and when an electric signal flows through the movable coil, electromagnetic force acts between the permanent magnet and moves in a predetermined pattern. When the diaphragm vibrates due to this movement, the air in the front and rear of the diaphragm generates almost the same vibration, thereby generating sound waves.

However, as described above, the sound waves generated by the vibration of the diaphragm are directly output to the front side of the middle and high frequency sound waves, and the low frequency sound waves are synthesized and outputted. From this, the users were required to be able to listen to the sound reproduced close to the natural sound, and the situation has been required to change the resonance structure inside the sound equipment that has been weakly provided.

The present invention has been made to improve the above problems, the object of the present invention is to provide an acoustic receiver that outputs high-quality sound by improving the position structure of the speaker unit and secured resonance space.

1 is a schematic perspective view showing the structure of an earphone in an acoustic receiver according to a first embodiment of the present invention,

2A and 2B are cross-sectional views of FIG. 1,

3 is a schematic perspective view showing the structure of a headphone in the acoustic receiver according to a second embodiment of the present invention,

4 is a schematic perspective view showing the structure of a speaker employed in a cassette in an acoustic receiver according to a third embodiment of the present invention,

5 is a schematic perspective view showing the structure of an audio box-shaped speaker in an acoustic receiver according to a fourth embodiment of the present invention,

6 is a graph showing the sound quality of the acoustic receiver according to the preferred embodiments of the present invention.

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

10 ... Resonance Space 11a-11d ... Body

12 ... Connecting rod 13 ... Coupler

14 ... cassette body 15 ... support

16 ... Box 17 ... Information

19 ... Protrusion ring 31 ... Speaker unit

32 ... first part 33 ... second part

41.Inner cover 51, 61 ... Buffer member

71,81 ... Guard net

In order to achieve the above object, an acoustic receiver according to a preferred embodiment of the present invention is connected to various acoustic devices by wires or wirelessly, or is employed in one or more of the acoustic devices themselves to output sound outside A body part forming a housing such that a rear side is rounded to form a resonance space therein; An annular coupler supported by an inner wall of the body part and disposed to be close to the resonance space at a predetermined distance from an edge of the body part; And a speaker unit configured to output a sound generated by switching an electrical signal so that the front of the body is complementarily coupled to the coupler and accommodated so that the sound can proceed toward the resonance space.

According to the present invention, the body portion is preferably formed on the inner surface of the resonance space is a guide surface forming a curved surface to guide and reverse the sound spoken by the speaker unit.

Here, the resonance resonance sound in the resonance space is guided to the guide surface is preferably emitted to the outside through the separation space between the edge of the body portion and the coupling sphere.

According to the present invention, the coupler and the inner wall of the body portion is preferably connected to at least two or more supports.

Therefore, it is possible to reproduce high-quality sound close to the original sound by reversely designing and arranging the position structure of a conventional speaker unit, securing a wider resonance space in the body, and amplifying the sound produced by the speaker unit with resonance resonance. have.

With reference to the accompanying drawings, an acoustic receiver according to a preferred embodiment of the present invention having this feature will be described in detail.

As shown in Figures 1 to 2b, the acoustic receiver according to the first embodiment of the present invention is connected to a variety of sound equipment by wire or wireless, plugged into the ear of the user to directly transfer the sound into the ear A body unit 11a having a resonance space 10 formed therein, a speaker unit 31 having a front surface of the body coupled to the body portion 11a to receive sound waves toward the resonance space 10, and the It is provided with a buffer member 51 which is caught on the edge of the body portion (11a) to surround the speaker unit (31).

The body portion 11a may be wirelessly provided according to the type of earphone, or may be connected to an acoustic device by a wire. The body portion 11a has an open front and a closed rear, and has a resonance space 10 formed therein. As the resonance space 10 is formed, an inner surface thereof has a wide and rounded curved surface. Is arranged to form a rounded sphere.

In addition, the body portion 11a has an annular coupling hole 13 supported by the inner wall of the opening side edge thereof, and an inner surface of the body portion 11a, that is, a guide surface protruding from the inner surface of the resonance space 10 ( 17).

The coupler 13 is connected to at least two support members 15 having a triangular shape on the inner side wall of the body portion 11a, and is spaced apart from the edge portion of the body portion 11a by a predetermined interval. It is arranged in an annular shape so as to be close to (10). The coupler 13 is coupled to the front of the speaker unit 31 to be described later toward the resonance space (10). Here, the support 15 is extended to the inner wall of the body portion (11a) is integrally connected to the outer circumference of the coupler (13).

The guide surface 17 is protruded to form a curved surface on the inner surface of the resonance space 10 of the body portion 11a, that is, the inner surface of the body portion 11a opposite to the front surface of the speaker unit 31 described above. The sound uttered toward the resonance space 10 in the unit 31 is guided along the curved surface so as to flow back through the spaced space between the body portion 11a and the coupler 13 so as to emanate to the outside.

The speaker unit 31 is sounded forward and a movable coil, a diaphragm protrudes to the rear of the first portion 32 and the first portion 32 provided inside the frame, and a permanent magnet therein. It has a second part 33 provided. The first portion 32 is inserted into and fixed to the coupler 13 so that the front thereof faces the resonance space 10 of the body portion 11a.

The buffer member 51 is formed of a soft rubber material, the insertion groove 52 is formed in the inner edge portion of the front end, the insertion groove 52 protrudes formed in the outer peripheral edge of the body portion (11a) It is inserted into the ring 19 and fixed. The shock absorbing member 51 is a buffer that stably contacts the inner ear wheel when the user inserts the earphone into the ear, and does not directly stimulate or pain the ear by friction between the earphone itself and the inner ear canal due to the buffering action by the buffer space. The part 53 is extended in the front-end | tip part. That is, the close contact by the buffer part 53 is very soft and excellent in adhesion, thereby promoting pain relief due to friction with the ear canal. In addition, since the buffer 53 is in close contact with the inside of the auricle, it is possible to effectively block external noise, thereby further improving the output of sound and not disturbing others. In addition, the buffer unit 53 resonates resonantly and performs the role of collecting the sound amplified and diverged to the outside and outputting the ear.

As shown in FIG. 3, the acoustic receiver according to the second preferred embodiment of the present invention is a headphone which blocks the entire user's ears so that sound is transmitted directly to the ear. The structure is the same as that of the above-described embodiment. That is, at both ends of the connecting table 12, one side is opened as an opening, the other side is sealed, and a resonance space 10 constituting a curved surface is formed therein, and an annular coupling connected to the inner wall of the opening side by a support 15 A body portion 11b including a sphere 13 and a guide surface 17 protruding from the inner surface of the resonance space 10, and the sound wave is emitted toward the resonance space 10 of the first portion 32. The front surface is provided with a speaker unit 31 coupled to the coupling sphere 13 is received, and a shock absorbing member 61 is attached to the edge of the body portion (11b) to perform a buffering effect on the ear. Here, reference numeral 41 denotes an inner cover for preventing contamination of the speaker unit 31 from dust or foreign matter.

As shown in Fig. 4, the acoustic receiver according to the third preferred embodiment of the present invention is employed in a small cassette and is adopted on both sides of the cassette main body 14, and its structure is almost the same as the above-described embodiments. That is, the opening is opened as an opening on both sides of the cassette main body 14 and the rear is closed to form a curved surface so that a resonance space 10 is formed, and the annular coupler 13 connected to the inner wall of the opening side by a support 15. ) And a body portion 11c including a guide surface 17 protruding from the inner surface of the resonance space 10, wherein the front surface of the first portion 32 is configured so that sound waves are emitted toward the resonance space 10. It is provided with a speaker unit 31 coupled to the coupling sphere 13 and a protection net 71 covering the body portion 11c.

As shown in FIG. 5, the acoustic receiver according to the fourth exemplary embodiment of the present invention is applied to a box-type acoustic receiver connected to a wire or wirelessly, such as audio, and the like so as to emit mid, high and low frequency sound waves. Is divided into three acoustic receiver groups whose gradual decreases, and the structure is almost the same as in the above-described embodiment. That is, it is installed to be supported on the front of the box 16, the front is opened as an opening and the rear is closed to form a curved resonance space 10 therein, and an annular shape connected to the inner wall of the opening side edge by the support 15. A first portion 32 is provided with a body portion 11d including a coupler 13 and a guide surface 17 protruding from an inner surface of the coplanar space 10, and sound waves are emitted toward the resonance space 10. The front of the speaker unit 31 is coupled to the coupling sphere 13 is accommodated, and a protective net 81 for covering the body portion (11d). According to the present invention, it is not limited to being divided into three acoustic receivers so as to emit mid-high and low-frequency sound waves as shown in the drawings, but two sound receivers or mid- and high-frequency sound waves that emit low frequency sound. One acoustic receiver may be employed to emit both high and low sound waves simultaneously.

Therefore, when power is applied to the various acoustic receivers applied to the embodiments as described above, the speaker unit 31 switches electrical signals to emit sound waves in front of the first portion 32. The sound waves emitted in this way are transmitted to the resonance space 10 of the body parts 11a-11d, and the transmitted sound waves cause resonance in the resonance space 10 and are amplified. The sound wave amplified in this way is guided against the guide surface 17 which forms a curved surface on the inner surface of the body parts 11a-11d. That is, the sound waves hit the guide surface 17 is taken out to the outside through the separation space provided between the edge of the body portion (11a-11d) and the coupling sphere 13 by riding the curved surface, the sound wave is resonant resonant to the outside In addition to the divergence, the low-end sound waves travel farther than the mid- and high-end sound waves, so that the user can three-dimensionally listen to the reproduced sound with a sound close to natural sound.

In more detail, as shown in Figure 6, when comparing the mid and high frequency sound waves and low frequency sound waves of the acoustic receiver and the conventional acoustic receiver according to the present invention, the middle and high frequency sound waves (b, c) and low frequencies Even if the sound waves (a) are emitted simultaneously or differently, the intensity of the sound according to the present invention (see A in the drawing) is a conventional sound in the mid and high band sections (b, c) and the low range section (a). It can be seen that it is further amplified by the intensity (see B in the figure). As a result, users can three-dimensionally listen to sounds reproduced with sounds close to natural sounds.

If this is described as an example of a guitar, a type of musical instrument, sound waves are generated by vibration of air as the guitar strings bounce. The sound wave enters the resonance chamber through the hole formed in the guitar body, and the sound wave entering the resonance tube causes resonance resonance, and is converted into a louder intensity and frequency than the sound wave generated initially, and is emitted to the outside. Therefore, the acoustic receiver of the present invention is the same principle as the guitar described above.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various design variations are possible by those skilled in the art within the scope of the technical idea of the present invention. .

As described above, the acoustic receiver according to a preferred embodiment of the present invention by re-engineering the arrangement of the position structure of the conventional speaker unit, by resonating the sound space from the speaker unit to secure a wider resonance space in the body resonance There is an advantage in that high-quality sound close to the original sound can be reproduced by amplifying by resonance.

Claims (4)

In the acoustic receiver which is connected to various acoustic devices by wires or wirelessly, or at least one of the sound equipment itself to output sound to the outside, Body parts (11a-11d) forming a housing such that the rear side is rounded and a resonance space 10 is formed therein; An annular coupler 13 supported on an inner wall of the body parts 11a-11d and disposed to be close to the resonance space 10 at a predetermined interval from an edge of the body parts 11a-11d; And A speaker unit 31 having a front of the body complementarily coupled to the coupler 13 so as to output sound generated by switching an electrical signal to the resonance space 10; An acoustic receiver comprising: a. The method of claim 1, The body portion (11a-11d), Sound guide device characterized in that the guide surface (17) is formed on the inner surface of the resonant space (10) to guide the flow back to the sound produced by the speaker unit (31). The method according to claim 1 or 2, Resonance resonance sound in the resonance space 10 is guided to the guide surface 17 is characterized in that it is emitted to the outside through the separation space between the edge of the body portion (11a-11d) and the coupling sphere 13 Acoustic receiver. The method of claim 1, Acoustic receiver, characterized in that the coupling sphere (13) and the inner wall of the body (11a-11d) is connected by at least two or more supports (15).