CN218897274U - Embedded audio amplifier of pronunciation training room wall and sound amplification system - Google Patents
Embedded audio amplifier of pronunciation training room wall and sound amplification system Download PDFInfo
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- CN218897274U CN218897274U CN202223449254.0U CN202223449254U CN218897274U CN 218897274 U CN218897274 U CN 218897274U CN 202223449254 U CN202223449254 U CN 202223449254U CN 218897274 U CN218897274 U CN 218897274U
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Abstract
The utility model discloses an embedded sound box and a sound amplifying system of a wall of a voice training room, wherein the sound box is arranged in the wall of the voice training room and comprises a box body, the box body is arranged in a cuboid shape, and a sound cavity is formed in the box body in a hollow mode; the inner wall of the box body is connected with a sound absorption layer; the upper part of the front panel of the box body is provided with a mounting hole; the loudspeaker is arranged in the mounting hole and is provided with an elliptical cone, and the long axis of the elliptical cone is arranged along the height direction of the box body; the phase inversion hole is arranged on the front panel of the box body and positioned below the loudspeaker and is used for enabling the sound cavity to be communicated with air outside the box body; the top of the box body is connected with a wiring terminal which is connected with the power amplifier in an electric connection way. The sound box embedded in the wall of the voice training room can be arranged in the wall of the voice training room, has good sound quality effect and can meet the requirement of uniformity of sound field distribution of an acoustic amplification system; the sound amplifying system enables the indoor sound field of the voice training room to be distributed evenly and has good sound quality.
Description
Technical Field
The utility model relates to the technical field of voice training rooms, in particular to a wall embedded sound box and an acoustic amplification system of a voice training room.
Background
With the continuous development of society and the improvement of the living standard of people, the art education is increasingly pursued by people in all communities, most students can cultivate one to two art features from small to small, and adults also cultivate own artistic feelings, so the market of art training is very large. Especially in recent years, epidemic situations have increased the demands of voice coaches, remote music coaches, and the like. The voice training room is a reduced music classroom and television live broadcasting room, and is widely applied to online live broadcasting sales, remote education, online courts, prison prisoners for remote acquisition and detection lie, online classrooms and the like; therefore, the voice training room has special requirements on the sound amplifying system, and the voice training room is particularly required to have good sound insulation effect, uniform sound field distribution of the sound amplifying system and natural and clear sound. The indoor sound amplifying system of the voice coach is composed of a microphone and a plurality of sound boxes, and most of common sound boxes in the prior art are formed by combining low-frequency speakers, medium-frequency speakers and high-frequency speakers in frequency division, and interference exists among sounds emitted by the speakers in different frequency bands, so that sound distortion and poor sound quality effect are caused. In order to ensure that the sound field of the indoor sound amplifying system of the voice coach is uniformly distributed, the sounds emitted by a single sound box are not interfered with each other, and the sound box is preferably a sound box consisting of all-frequency loudspeakers; however, because the sound box is embedded in the wall body, the sound box has strict requirements on the overall thickness, volume and sound quality of the sound box, and particularly, the sound box can be embedded in the wall of a voice training room with the thickness dimension of less than 150 mm, has good sound quality effect and can meet the requirement on the uniformity of the sound field distribution of the sound amplifying system; obviously, the common sound box in the prior art can not meet the requirements of the indoor sound amplifying system of the voice coach on the uniformity of sound field distribution and good sound quality effect.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the voice training room wall embedded sound box which can be installed in the voice training room wall and has good sound quality effect and can meet the requirement of sound field distribution uniformity of an acoustic amplification system.
The technical scheme of the utility model is that a voice training room wall embedded sound box with the following structure is provided: which is installed in the wall of the voice training room and comprises
The box body is in a cuboid shape, and an acoustic cavity is formed in the box body in a hollow mode; the inner wall of the box body is connected with a sound absorption layer made of a sound absorption material; the upper part of the front panel of the box body is provided with a mounting hole;
the loudspeaker is arranged in the mounting hole and is provided with an elliptical cone, and the long axis of the elliptical cone is arranged along the height direction of the box body;
the phase inversion hole is arranged on the front panel of the box body and positioned below the loudspeaker and is used for enabling the sound cavity to be communicated with air outside the box body;
the top of the box body is connected with a wiring terminal which is connected with a power amplifier in an electric way, and the wiring terminal is electrically connected with the loudspeaker.
Preferably, the outer side wall of the box body is connected with a plurality of shockproof gaskets which are distributed along the height direction of the box body and are sleeved on the surface of the box body.
Preferably, the elliptical cone of the speaker is configured as an elliptical cone having a width-directional aperture of 4 inches and a length-directional aperture of 6 inches.
Preferably, the vertical center line of the speaker coincides with the center line of the inverter hole, and the vertical center line of the speaker does not coincide with the center line of the case in the width direction.
After adopting above structure, the embedded audio amplifier of voice training room wall of the utility model compares with prior art, has following advantage: the embedded sound box of the wall of the voice training room has thinner overall thickness and smaller volume, can be installed in the wall of the voice training room, particularly can be installed in the wall of the voice training room with the thickness dimension within 150 mm, and meets the requirement of installing the sound box in the wall of the voice training room; in addition, the loudspeaker of the sound box is provided with an elliptic cone, and the long axis of the elliptic cone is arranged along the height direction of the box body and the phase inversion hole is arranged on the front panel below the loudspeaker, so that the frequency response of the sound box can reach 50 Hz-20 kHz. The sound-absorbing layer on the inner wall of the box body is arranged, so that the sound quality of the sound box is natural, clean, real and noiseless; particularly, the long axis of the elliptical cone of the loudspeaker is arranged along the height direction of the box body, so that the range of outwards diffusing sound of the loudspeaker box in the vertical direction is wide, and the requirement of sound field distribution uniformity of the sound amplifying system can be met. The design of the shockproof gasket on the outer side wall of the box body plays a protective role on the sound box when the sound box is installed in the wall of the voice training room, and also weakens resonance generated by the sound box when sounding and the wall, so that the sound quality of the sound box is further clearer and more natural.
The utility model provides an acoustic amplification system with the following structure, which comprises a pickup unit connected in a voice training room, a power amplifier and a plurality of sound boxes arranged in the wall of the voice training room, wherein the sound boxes adopt the embedded sound box of the wall of the voice training room.
Preferably, a plurality of sound boxes form at least one sound array distributed along the height direction of the voice training room in the voice training room, a plurality of sound boxes of each sound array are distributed along the inner circumference of the voice training room, and the sound outlet directions of all sound boxes of each sound array are sequentially distributed along the inner circumference of the voice training room to form a closed ring.
Preferably, the acoustic array is divided into two groups: the first sound array is positioned at the upper part of the voice training room, and the second sound array is positioned at the lower part of the voice training room; the sound emitting directions of all the sound boxes of the first sound array are sequentially distributed along a first direction of the inner circumference of the voice training room, the sound emitting directions of all the sound boxes of the second sound array are sequentially distributed along a second direction of the inner circumference of the voice training room, and the first direction is opposite to the second direction.
Preferably, the vertical projections of all the sound boxes of the first sound array and all the sound boxes of the second sound array on the bottom plane of the voice training room are not overlapped with each other.
After adopting the structure, compared with the prior art, the sound amplifying system has the following advantages:
the sound box of the sound amplification system adopts the embedded sound box of the wall of the voice training room, so that the requirement of installing the sound box in the wall of the voice training room can be met, the sound quality effect is good, and the requirement of uniformity of sound field distribution of the sound amplification system can be met; the sound boxes of the sound amplification system form at least one group of sound arrays distributed along the height direction of the voice training room in the voice training room, the sound boxes of each sound array are distributed along the inner circumference direction of the voice training room, and the sound outlet directions of all the sound boxes of each sound array are sequentially distributed along the inner circumference direction of the voice training room to form a closed ring, so that the sound fields in the voice training room are uniformly distributed and have attractive sound quality; the two groups of sound arrays are respectively positioned in the upper wall body and the lower wall body in the voice training room, and the sound outlet directions are opposite, so that sound fields of different heights in the voice training room can be uniformly covered, and users can obtain better sound effect experience under the condition that the standing posture or sitting posture of the voice training room is at different heights.
Drawings
FIG. 1 is a schematic diagram of a wall-mounted sound box for a speech coaching room according to the present utility model.
FIG. 2 is a schematic cross-sectional view of the sound box embedded in the wall of the speech coaching room of the present utility model.
Fig. 3 is a schematic structural view of an acoustic amplification system according to the present utility model.
Fig. 4 is a schematic top view of an acoustic enhancement system according to the present utility model.
As shown in the figure:
1. the sound-absorbing device comprises a box body, 100, a sound cavity, 101, a sound absorption layer, 102, a mounting hole, 103, a loudspeaker, 104, a cone, 105, a phase inversion hole, 2, a wall assembly, 200, a first wall body, 201, a second wall body, 202, a third wall body, 203, a fourth wall body, 204, a first corner, 205, a second corner, 206, a third corner, 207, a fourth corner, 3, a pickup unit, 4, a first sound array, 400, a first sound box A,401, a first sound box B,402, a first sound box C,403, a first sound box D,400a, a first sound outlet direction A,401a, a first sound outlet direction B,402a, a first sound outlet direction C,403a, a first sound outlet direction D,5, a second sound array, 500, a second sound box A,501, a second sound box B,502, a second sound box C,503, a second sound box D,500a, a second sound outlet direction A,501a, a second sound outlet direction B,502a, a second sound outlet direction C, a second sound outlet direction A, 503, a vibration-absorbing terminal and a terminal.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples.
See fig. 1-2;
the embodiment of the utility model discloses an embedded sound box on the wall of a voice training room, which is arranged in the wall of the voice training room, wherein the voice training room is used for singing and recording, network live broadcasting, remote education, online courts, prison serving personnel for remote acquisition, detection of lie, online classroom and the like, such as singer singing and recording in the voice training room, and a network anchor is used for live broadcasting and selling in the voice training room or teaching in the voice training room by teachers and the like, and the embedded sound box is separated from a building and independently exists.
The voice training room wall embedded sound box of the embodiment structurally comprises a box body 1 which is rectangular, wherein an acoustic cavity 100 is formed in the box body 1 in a hollow mode; the inner wall of the case 1 is connected with a sound absorbing layer 101 made of a sound absorbing material such as sound absorbing cotton or a sound absorbing plate; a mounting hole 102 is formed in the upper portion of the front panel of the box body 1, a loudspeaker 103 is mounted in the mounting hole 102, the loudspeaker 103 is provided with an elliptical cone 104, and the long axis of the elliptical cone 104 is arranged along the height direction of the box body 1; a phase inversion hole 105 is formed on the front panel of the cabinet 1 below the speaker 103, and the phase inversion hole 105 is used for communicating the sound cavity 100 with the outside air of the cabinet 1; the top of the case 1 in this embodiment is connected with a terminal 7 connected with a power amplifier, and the terminal 7 is electrically connected with the speaker 103. In this embodiment, the box 1 is rectangular, so the acoustic cavity 100 inside is a long and narrow acoustic cavity 100, and in this embodiment, the overall thickness dimension of the box 1 is smaller than 100 mm, which is suitable for being installed in a wall of a voice training room of 100 mm.
The loudspeaker 103 of this embodiment has an elliptical cone 104, and the major axis of the elliptical cone 104 is arranged along the height direction of the cabinet 1 and the phase inversion hole is arranged on the front panel below the loudspeaker 103, so that the frequency response of the loudspeaker box can reach 50 Hz-20 kHz. The sound-absorbing layer 101 on the inner wall of the box body 1 is arranged, so that the sound quality of the sound box is natural, clean, real and noiseless; particularly, the long axis of the elliptical cone 104 of the loudspeaker 103 is arranged along the height direction of the box body 1, so that the range of outwards diffusing sound of the loudspeaker box in the vertical direction is wide, and the requirement of sound field distribution uniformity of an acoustic amplification system can be met. The elliptical cone 104 of the speaker 103 of the present embodiment is configured as an elliptical cone 104 having a width-direction caliber of 4 inches and a length-direction caliber of 6 inches; that is, the maximum diameter of the speaker 103 in the width direction is 4 inches, and the maximum diameter in the length direction is 6 inches. The design of the elliptical loudspeaker 103 and the phase inversion hole of the loudspeaker box enables the lower frequency limit of the loudspeaker box to meet the use requirement, even the lower frequency limit reaches the working frequency band below 50Hz, and exceeds the common loudspeaker box design theory, wherein the lower frequency limit of the traditional loudspeaker box with the same specification can only reach about 100 Hz.
The embedded audio amplifier of pronunciation coach room wall of this implementation, box 1 adopt long and narrow box 1 of cuboid shape, and speaker 103 adopts the long axis to be unanimous oval speaker 103 of box 1 direction of height, and the sound directivity that it sent is clear and definite, and the diffusion scope is wide, and is more outstanding for the phase characteristic of traditional divide by two, three frequency division audio amplifier moreover, and tone quality is more natural, true.
In this embodiment, a plurality of vibration-proof washers 6 are connected to the outer wall of the case 1, distributed along the height direction of the case 1, and sleeved on the surface of the case 1. The shockproof gasket 6 is an elastic and soft shockproof gasket 6 made of rubber and the like, and the shockproof gasket 6 is designed to protect the sound box when the sound box is installed in a wall of a voice training room, and also weaken resonance generated by the sound box when sounding and the wall, so that the sound quality of the sound box is further clearer and more natural.
In the present embodiment, the vertical center line of the speaker 103 coincides with the center line of the inverter hole 105, and the vertical center line of the speaker 103 does not coincide with the center line of the width direction of the cabinet 1. The arrangement is such that the speaker and the inverter hole are located on the same side of the center line in the width direction of the cabinet 1, and such that when the sound box is installed in the wall of the voice training room, the speaker 103 can be located closer to the corner, and the corner structure is stable, thereby reducing or weakening resonance when the sound box is in use.
See fig. 3-4;
another embodiment of the utility model discloses an acoustic amplification system, which comprises a pickup unit 3 connected in a voice training room, a power amplifier and a plurality of sound boxes installed in the wall of the voice training room, wherein the sound boxes adopt the sound box embedded in the wall of the voice training room. In the sound amplifying system, the sound pick-up unit 3 is at least one microphone installed in the voice training room, the power amplifier, namely, the power amplifier, is connected with the embedded sound box of each voice training room wall, and the sound pick-up unit 3 is connected with the power amplifier in a sexual manner. The pickup unit 3 and the power amplifier are all products in the prior art, and the structure of the pickup unit is not described in detail in this embodiment.
In this embodiment, the voice training room includes a bottom frame, a top frame, and a wall assembly 2 connecting the bottom frame and the top frame, where the bottom frame, the top frame, and the wall plate assembly enclose a closed sound insulation space; of course, in order to obtain a good sound insulation effect, sound insulation cotton or a sound insulation board is connected in the underframe, the top frame and the wall assembly 2. The wall assembly 2 is further provided with a window, a door and the like, the wall assembly 2 comprises a first wall 200, a second wall 201, a third wall 202 and a fourth wall 203, the first wall 200, the second wall 201, the third wall 202 and the fourth wall 203 are all vertically arranged, a first corner 204 which is arranged at right angles is formed between the first wall 200 and the second wall 201, a second corner 205 which is arranged at right angles is formed between the second wall 201 and the third wall 202, a third corner 206 which is arranged at right angles is formed between the third wall 202 and the fourth wall 203, and a fourth corner 207 which is arranged at right angles is formed between the fourth wall 203 and the first wall 200; in addition, in the embodiment of the present utility model, the first wall 200, the second wall 201, the third wall 202 and the fourth wall 203 of the wall assembly 2 are all sound insulation walls, that is, the interior is filled with sound insulation cotton or sound insulation boards.
In this sound amplification system, a plurality of the audio amplifier forms at least a set of sound array that distributes along the high direction of voice training room in voice training room, and the sound direction of all audio amplifier of every sound array distributes along the indoor circumference of voice training, and the indoor circumference of voice training of every sound array distributes in proper order along the play sound direction of all audio amplifier and forms closed annular. In this embodiment, the acoustic array is divided into two groups: a first acoustic array 4 and a second acoustic array 5, the first acoustic array 4 being located at an upper portion of the voice coaching room, and the second acoustic array 5 being located at a lower portion of the voice coaching room; the sound emitting directions of all the sound boxes of the first sound array 4 are sequentially distributed along a first direction of the inner circumference of the voice training room, the sound emitting directions of all the sound boxes of the second sound array 5 are sequentially distributed along a second direction of the inner circumference of the voice training room, and the first direction is opposite to the second direction.
The sound box of the sound amplification system adopts the embedded sound box of the wall of the voice training room, so that the requirement of installing the sound box in the wall of the voice training room can be met, the sound quality effect is good, and the requirement of uniformity of sound field distribution of the sound amplification system can be met; the sound boxes of the sound amplification system form at least one group of sound arrays distributed along the height direction of the voice training room in the voice training room, the sound boxes of each sound array are distributed along the inner circumference direction of the voice training room, and the sound outlet directions of all the sound boxes of each sound array are sequentially distributed along the inner circumference direction of the voice training room to form a closed ring, so that the sound fields in the voice training room are uniformly distributed and have attractive sound quality; the two groups of sound arrays are respectively positioned in the upper wall body and the lower wall body in the voice training room, and the sound outputting directions are opposite, so that sound fields with different heights in the voice training room can be uniformly covered, and users can obtain better sound effect experience under the condition of standing or sitting in the voice training room.
Referring to fig. 3 again, the four speakers of the first sound array 4 are sequentially labeled as a first speaker a400, a first speaker B401, a first speaker C402 and a first speaker D403, where the first speaker a400, the first speaker B401, the first speaker C402 and the first speaker D403 are respectively connected in four walls at four corners of the voice training room, where the first speaker a400 has a first sound emitting direction a400a, the first speaker B401 has a first sound emitting direction B401a, the first speaker C402 has a first sound emitting direction C402 a, the first speaker D403 has a first sound emitting direction D403a, and the first sound emitting direction of the speakers, that is, the direction of the sound emitting outlet of the speaker 103 in the speaker; the first sound outlet direction A400a of the first sound box A400 faces the first sound box B401, the first sound outlet direction B401a of the first sound box B401 faces the first sound box C402, the first sound outlet direction C402 a of the first sound box C402 faces the first sound box D403, and the first sound outlet direction D403a of the first sound box D403 faces the first sound box A400; that is, the sound emitting directions of all the first sound boxes are distributed in turn along the first direction or the anticlockwise direction of the circumference in the voice training room to form a closed ring shape.
The second sound array 5 includes four second sound boxes: the second sound box A500, the second sound box B501, the second sound box C502 and the second sound box D503 are respectively connected in four walls at the lower parts of four corners of the voice training room, wherein the second sound box A500 is provided with a second sound outlet direction A500a, the second sound box B501 is provided with a second sound outlet direction B501a, the second sound box C502 is provided with a second sound outlet direction C502a, the second sound box D503 is provided with a second sound outlet direction D503a, and the second sound outlet direction of the sound box is the direction of the sound outlet of the loudspeaker 103 in the sound box; the second sound outlet direction a500a of the second sound box a500 faces the second sound box B501, the second sound outlet direction B501a of the second sound box B501 faces the second sound box C502, the second sound outlet direction C502a of the second sound box C502 faces the second sound box D503, and the second sound outlet direction D503a of the second sound box D503 faces the second sound box a500; that is, the sound emitting directions of all the second sound boxes are distributed in turn along the second direction or the clockwise direction of the circumference in the voice training room to form a closed ring shape. The counterclockwise or clockwise direction of this embodiment is the direction shown in fig. 4 of the specification. Of course in other embodiments the direction of the first sound array 4 and the second sound array 5 may be interchanged.
Referring again to fig. 4, the perpendicular projections of all the speakers of the first sound array 4 and all the speakers of the second sound array 5 on the bottom plane of the voice training room do not coincide with each other. Specifically, in the present embodiment, the first sound box a400 and the second sound box a500 are respectively disposed on the fourth wall 203 and the first wall 200 of the first corner 204 from top to bottom, the first sound box B401 and the second sound box D503 are respectively disposed on the first wall 200 and the second wall 201 of the second corner 205 from top to bottom, the first sound box C402 and the second sound box C502 are respectively disposed on the second wall 201 and the third wall 202 of the third corner 206 from top to bottom, and the first sound box D403 and the second sound box B501 are respectively disposed on the third wall 202 and the fourth wall 203 of the fourth corner 207 from top to bottom; therefore, the vertical projections of all the first sound boxes of the first sound array 4 and all the second sound boxes of the second sound array 5 on the bottom plane of the voice training room do not coincide with each other; thus, the uniformity of sound field distribution in the voice training room is further improved.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. The utility model provides an embedded audio amplifier of pronunciation coach room wall, its install in the wall of pronunciation coach room, its characterized in that: it comprises
The box body is in a cuboid shape, and an acoustic cavity is formed in the box body in a hollow mode; the inner wall of the box body is connected with a sound absorption layer made of a sound absorption material; the upper part of the front panel of the box body is provided with a mounting hole;
the loudspeaker is arranged in the mounting hole and is provided with an elliptical cone, and the long axis of the elliptical cone is arranged along the height direction of the box body;
the phase inversion hole is arranged on the front panel of the box body and positioned below the loudspeaker and is used for enabling the sound cavity to be communicated with air outside the box body;
the top of the box body is connected with a wiring terminal which is connected with a power amplifier in an electric way, and the wiring terminal is electrically connected with the loudspeaker.
2. The voice coaching room wall built-in sound box of claim 1, wherein: the outer side wall of the box body is connected with a plurality of shockproof gaskets which are distributed along the height direction of the box body and are sleeved on the surface of the box body.
3. The voice coaching room wall built-in sound box of claim 1, wherein: the elliptical cone of the speaker is configured as an elliptical cone having a width-direction caliber of 4 inches and a length-direction caliber of 6 inches.
4. The voice coaching room wall built-in sound box of claim 1, wherein: the vertical center line of the loudspeaker coincides with the center line of the phase inversion hole, and the vertical center line of the loudspeaker does not coincide with the center line of the box body in the width direction.
5. The utility model provides an audio amplifier system, it includes connects pickup unit, power amplifier and a plurality of audio amplifier of installing in the pronunciation training room wall in pronunciation training room, its characterized in that: the sound box adopts the embedded sound box of the wall of the voice training room as claimed in any one of the claims 1 to 4.
6. The sound enhancement system of claim 5, wherein: a plurality of the sound boxes form at least one group of sound arrays distributed along the height direction of the voice training room in the voice training room, a plurality of sound boxes of each sound array are distributed along the inner circumference of the voice training room, and the sound outlet directions of all sound boxes of each sound array are sequentially distributed along the inner circumference of the voice training room to form a closed ring shape.
7. The sound enhancement system of claim 6, wherein: the sound array is divided into two groups: the first sound array is positioned at the upper part of the voice training room, and the second sound array is positioned at the lower part of the voice training room; the sound emitting directions of all the sound boxes of the first sound array are sequentially distributed along a first direction of the inner circumference of the voice training room, the sound emitting directions of all the sound boxes of the second sound array are sequentially distributed along a second direction of the inner circumference of the voice training room, and the first direction is opposite to the second direction.
8. The sound enhancement system of claim 7, wherein: the vertical projections of all the sound boxes of the first sound array and all the sound boxes of the second sound array on the bottom plane of the voice training room are not overlapped with each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223449254.0U CN218897274U (en) | 2022-12-22 | 2022-12-22 | Embedded audio amplifier of pronunciation training room wall and sound amplification system |
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| CN202223449254.0U CN218897274U (en) | 2022-12-22 | 2022-12-22 | Embedded audio amplifier of pronunciation training room wall and sound amplification system |
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