CN203554675U - Loudspeaker device - Google Patents

Abstract

A loudspeaker device, a cylindrical sound box equipped with cone-basin type horn, it has a radial opening on one end; the surface of the sound collector is provided with a first large opening and a first small opening which have different calibers and are communicated with each other, wherein the first large opening corresponds to the cone surface of the cone-shaped horn, so that sound waves are transmitted from the first large opening to the first small opening; and a resonance cylinder, the surface of which is provided with a second large opening and a second small opening which have different calibers and are mutually communicated, wherein the second small opening is communicated with the first small opening of the sound collector, and the second large opening is fixedly provided with a first wave sound-absorbing cotton.

Description

speaker device

technical field

The utility model relates to a loudspeaker device, in particular to a structural improvement for a cylindrical resonant sound box.

Background technique

In recent years, audio equipment is composed of speaker devices with different frequency bands, and it is an indispensable equipment for audio-visual lovers. The loudspeaker device includes at least one loudspeaker unit and a resonant sound box combined with the loudspeaker unit. Depending on the type of speaker unit, as well as the size and shape of the resonator box, the speaker device can exhibit different timbres.

In the theory of acoustics, the cylindrical resonant speaker, compared with the general square speaker, the sound waves resonating in the cylindrical speaker are more symmetrical, with less noise or interference, so that the speaker device can get more Realistic sound effects.

Therefore, how to improve the speaker device of the cylindrical sound box to make the types of timbres more diversified is an urgent problem to be solved by the industry.

Utility model content

The purpose of the utility model is to provide a speaker device, through structural improvement, to provide cylindrical sound boxes with different timbres.

In order to achieve the above-mentioned purpose, the technical means of the utility model is: a cylindrical sound box equipped with a cone horn, which has a radial opening on one end face; A first large opening and a first small opening, wherein the first large opening is formed above the cylindrical sound box, corresponding to the sounding position of the cone-type horn, so that sound waves are transmitted from the first large opening to the first small opening opening; and

A resonant cylinder, the surface of which has a second large opening and a second small opening with different diameters but connected to each other, wherein the second small opening communicates with the first small opening of the sound collector, and the second large opening is fixed to accommodate There is a first wave sound-absorbing cotton.

In one embodiment of the present invention, the shape of the radial opening is defined by four R angles.

In one embodiment of the present invention, the width of the end of the radial opening: the diameter of the end surface of the cylindrical sound box is 1:9 or an approximate value thereof.

In one embodiment of the present invention, the size of the accommodation space in the sound collector decreases gradually from the first large opening to the first small opening.

In an embodiment of the present invention, the size of the accommodating space in the resonance cylinder decreases gradually from the second large opening to the second small opening.

In one embodiment of the present invention, the resonance cylinder surface is provided with a resonance suppressing element, and the resonance suppressing element has several protrusions, and some of the protrusions are equidistantly arranged around the second small opening , another part of the protrusions at equal intervals is periodically arranged around the second large opening.

In one embodiment of the present invention, the surface of the resonance cylinder is provided with a resonance suppressing element, and the protrusions include four protrusions equidistantly arranged around the second small opening, and twelve protrusions equally spaced ground is arranged around the second large opening.

In one embodiment of the present invention, the inner surface of the cylindrical sound box equipped with a cone-shaped speaker is laid with a second sound-absorbing cotton, and the end surface close to the radial opening is provided with a second wave sound-absorbing cotton.

In one embodiment of the present invention, an annular sound-absorbing cotton is disposed between the first small opening of the sound collector and the second small opening of the resonance cylinder, and the annular sound-absorbing cotton is perforated with a perforation.

In one embodiment of the present invention, a sleeve is also included, and the sleeve is sleeved on the outside of the first small opening of the sound collector and the second small opening of the resonance cylinder, so that the sound collector and the resonance The inner surface of the sleeve is surrounded by sound-absorbing cotton, and the first small opening of the sound collector and the second small opening of the resonance cylinder are located in the middle of the sound-absorbing cotton on the inner surface of the sleeve.

In the speaker device of the present invention, when the cone horn is driven by a signal, a sound wave is generated, part of which is transmitted to the resonance cylinder through the sound collector and the sleeve, and the other part of the sound wave is transmitted to the resonance cylinder. The speaker resonates. The arrangement of the first resonance suppressing element and the second resonance suppressing elements is used to suppress sound waves of a specific frequency in the resonance cylinder, so that the sound generated by the sound waves of a specific frequency can be suppressed and present a specific tone color.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded exploded view of a preferred embodiment of the present invention.

Fig. 2 is an assembled cross-sectional view of a preferred embodiment of the present invention according to Fig. 1 .

Fig. 3 is a plan view of radial openings in a preferred embodiment of the present invention.

Detailed ways

Please refer to FIG. 1 and FIG. 2 , the speaker device provided by the preferred embodiment of the present invention includes a resonant tube 11 , a sleeve 12 , a sound collector 13 and a resonant speaker box 14 .

Both ends of the resonant tube 11 are openings with different sizes and diameters. As shown in FIG. 2 , part of the accommodation space in the resonant tube 11 is defined by curved surfaces. It should be noted that, in addition to the parabola provided in the drawings of the preferred embodiments of the present invention, the accommodating space of the resonance cylinder 11 can also be a conical or exponential function curved structure. The larger part of the resonance tube 11 defines a second large opening, opposite to the other end of the second large opening, there is a second small opening, a first wave sound-absorbing cotton 111 is accommodated at the second large opening, and the first wave sound-absorbing cotton 111 The waves of a wave sound-absorbing cotton 111 are symmetrically distributed in the resonance cylinder 11 .

The surface of the resonance cylinder 11 has six pairs of first resonance suppression elements 112 (parts are not shown), and the first resonance suppression elements 112 are fixedly arranged on the outer surface of the resonance cylinder 11 in an equidistant manner. Each of the first resonance suppressing elements 112 is composed of two protrusions 1121 , which are used to suppress part of the vibration of the resonance cylinder 11 caused by sound waves.

The surface of the resonance cylinder 11 also has a second resonance suppression element 113 composed of four protrusions, and the second resonance suppression elements 113 are fixedly arranged on the surface of the resonance cylinder 11 in an equidistant manner to suppress partial resonance The drum 11 vibrates due to sound waves.

The sleeve 12 has a first sound-absorbing cotton 121 and an annular sound-absorbing cotton 122. The center of the annular sound-absorbing cotton 122 is provided with a perforation, wherein the first sound-absorbing cotton 121 is laid on the inner side of the sleeve 12, and the annular sound-absorbing cotton The peripheral edge of the cotton 122 is firmly connected with the first sound-absorbing cotton 121 , so that the sleeve 12 defines two accommodating spaces (not labeled). One of the accommodating spaces of the sleeve 12 accommodates one end of the resonant tube 11 (the end with the second small opening), so that the resonant tube 11 and the sleeve 12 communicate with each other.

Both ends of the sound collector 13 are openings with different diameters, and as shown in FIG. 2 , part of the accommodation space in the sound collector 13 is defined by curved surfaces. The sound collector 13 is partially accommodated in the remaining accommodation space of the sleeve 12, and the end of the sound collector 13 connected to the sleeve 12 is provided with a first small opening, opposite to the first small opening. One end is provided with a first large opening, so that the sound collector 13, the sleeve 12 and the resonance cylinder 11 communicate with each other.

The resonant sound box 14 is a cylindrical sound box, and one of the two ends of the cylindrical sound box is provided with a cone horn 141 . The sound collector 13 is firmly combined with an end face of the cylindrical sound box by means of glue at one end of the first large opening, and completely covers the cone type speaker 141, so that the cone type speaker The sound wave driven by 141 is transmitted to the resonance cylinder 11 through the sound collector 13 and the sleeve 12 . In addition to the way of fixing with glue, the combination of the sound collector 13 and the resonant speaker box 14 can also be achieved by locking or other known techniques, so the detailed description of the fixing structure is omitted. Please simplify the description.

A second sound-absorbing cotton 142 is laid on the inner side of the resonance box 14 , and a second wave sound-absorbing cotton 143 is laid on the inner side of the other end of the resonance box 14 . The waves of the second wave sound-absorbing cotton 143 are symmetrically distributed in the resonant sound box 14 .

Please refer to FIG. 3 , the other end surface of the resonant box 14 has a radial opening 144 , and the radial opening 144 is defined by four R angles 145 on the other end surface of the resonant box 14 . The arrangement of the radial openings 144 makes the second wave sound-absorbing cotton 143 partially exposed outside the resonance box 14 . As for the ratio of the radial opening 144 , the width at the end of the radial opening 144 is A, and the diameter of the other end surface of the resonant box 14 is B, and the ratio of A:B is 1:9 or its approximate ratio is better.

Please refer to Fig. 2 again, when this cone type horn 141 is just produced sound wave when being driven by signal, its part is passed in this resonant tube 11 through this sound collector 13 and this sleeve 12, and the sound wave of another part is passed to The resonance box 14 resonates. Wherein, the configurations of the first resonance suppressing elements 112 and the second resonance suppressing elements 113 are used to suppress the specific frequency sound waves in the resonance tube 11, so that the sound generated by the specific frequency sound waves can be suppressed, presenting a specific tone.

The above detailed description is a specific description of a feasible embodiment of the utility model, but the embodiment is not used to limit the patent scope of the utility model, and any equivalent implementation or change that does not deviate from the technical spirit of the utility model shall be accepted. Should be included in the patent scope of the present utility model. The above detailed description is a specific description of a feasible embodiment of the utility model, but this embodiment is not intended to limit the patent scope of the utility model, and any equivalent implementation or change that does not depart from the technical spirit of the utility model , should be included in the protection scope of the present utility model.

Claims (17)

1. A loudspeaker device, characterized in that it comprises: A cylindrical sound box equipped with a cone-type horn, which has a radial opening on one end surface; A sound collector, its surface has a first large opening and a first small opening connected to each other with different calibers, wherein the first large opening is formed above the cylindrical sound box and corresponds to the sound of the cone speaker position for sound waves to pass from the first large opening to the first small opening; and A resonant cylinder, the surface of which has a second large opening and a second small opening with different diameters but connected to each other, wherein the second small opening communicates with the first small opening of the sound collector, and the second large opening is fixed to accommodate There is a first wave sound-absorbing cotton. 2. The speaker device according to claim 1, wherein the shape of the radial opening is defined by four R-angles. 3. The speaker device according to claim 2, characterized in that: the width of the end of the radial opening: the diameter of the end surface of the cylindrical sound box is 1:9. 4. The speaker device according to claim 2, characterized in that: the width of the end of the radial opening: the diameter of the end surface of the cylindrical sound box is about 1:9. 5 . The speaker device according to claim 3 , wherein the size of the accommodating space in the sound collector decreases from the first large opening to the first small opening. 6 . 6 . The speaker device according to claim 4 , wherein the size of the accommodating space in the sound collector decreases from the first large opening to the first small opening. 7 . 7 . The speaker device according to claim 5 , wherein the size of the accommodating space in the resonance cylinder decreases gradually from the second large opening to the second small opening. 8 . 8 . The speaker device according to claim 6 , wherein the size of the accommodating space in the resonance cylinder decreases gradually from the second large opening to the second small opening. 9. The loudspeaker device according to claim 7, characterized in that: a resonance suppression element is provided on the surface of the resonance cylinder, and the resonance suppression element has several protrusions, and some of the protrusions are arranged at equal intervals Around the second small opening, another part of the projections at equal intervals is periodically arranged around the second large opening. 10. The speaker device according to claim 8, characterized in that: the resonance cylinder surface is provided with a resonance suppressing element, the resonance suppressing element has several bumps, and some of the bumps are arranged at equal intervals Around the second small opening, another part of the projections at equal intervals is periodically arranged around the second large opening. 11. The speaker device according to claim 9, wherein the protrusions include four protrusions arranged at equal intervals around the second small opening, and twelve protrusions arranged at equal intervals around the second largest opening. 12. The speaker device according to claim 10, wherein the protrusions include four protrusions arranged at equal intervals around the second small opening, and twelve protrusions arranged at equal intervals around the second largest opening. 13. The sound-absorbing device according to claim 11, characterized in that: the inner surface of the cylindrical sound box equipped with a cone-shaped speaker is laid with a second sound-absorbing cotton, and a second sound-absorbing cotton is laid on the end surface close to the radial opening. The second wave sound-absorbing cotton. 14. The sound-absorbing device according to claim 12, characterized in that: the inner surface of the cylindrical sound box equipped with a cone-shaped speaker is laid with a second sound-absorbing cotton, and a second sound-absorbing cotton is laid on the end surface close to the radial opening. The second wave sound-absorbing cotton. 15. The sound-absorbing device according to claim 13, characterized in that: a ring-shaped sound-absorbing cotton is arranged between the first small opening of the sound collector and the second small opening of the resonance cylinder, and the ring-shaped sound-absorbing cotton is passed through There is a piercing. 16. The sound-absorbing device according to claim 14, characterized in that: a ring-shaped sound-absorbing cotton is arranged between the first small opening of the sound collector and the second small opening of the resonance cylinder, and the ring-shaped sound-absorbing cotton is passed through There is a piercing. 17. The loudspeaker device according to claim 1 or 16, characterized in that it further comprises a sleeve, which is sleeved between the first small opening of the sound collector and the second small opening of the resonance cylinder Externally, the sound collector is connected to the resonance cylinder, the inner surface of the sleeve is surrounded by sound-absorbing cotton, the first small opening of the sound collector and the second small opening of the resonance cylinder are located on the inner surface of the sleeve Sound-absorbing cotton middle.

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