CN212344059U - Symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker - Google Patents
Symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker Download PDFInfo
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- CN212344059U CN212344059U CN202021362425.4U CN202021362425U CN212344059U CN 212344059 U CN212344059 U CN 212344059U CN 202021362425 U CN202021362425 U CN 202021362425U CN 212344059 U CN212344059 U CN 212344059U
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Abstract
The utility model discloses a symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker; the method comprises the following steps: the sound-emitting device comprises an upper sound track disc, a lower sound track disc, an upper sound-producing device, a lower sound-producing device, an upper cover plate and a lower cover plate; the method is characterized in that: the upper channel disc and the lower channel disc have the same structure; the integral structure of the upper sound track disc and the lower sound track disc is in a funnel-shaped design; the cross section of the steel tube is designed to be high at the center and low at the periphery of the outer surface; the outer surfaces of the upper sound track disc and the lower sound track disc are provided with a plurality of sound insulation plates from the circle center to the edge direction, and the upper ends of the sound insulation plates are a plane after the sound insulation plates are arranged on the outer surfaces of the upper sound track disc and the lower sound track disc; go up the sound channel dish and set up the relative cooperation setting behind the acoustic celotex board with the lower sound channel dish, and go up the relative cooperation of acoustic celotex board in sound channel dish and the lower sound channel dish and be connected, form between two adjacent acoustic celotex boards and let out the sound passageway, should let out sound passageway structure from inside to outside opening grow gradually.
Description
Technical Field
The utility model relates to an industrial manufacturing field especially relates to a two horizontal directional compression high pitch loudspeaker of vibrating diaphragm of symmetry.
Background
Since the appearance of Amazon smart speakers ECHO in 2015, smart speakers have been developing vigorously like a bamboo shoot in spring after rain. The horizontal 360-degree full pointing is always the mainstream acoustic design of the smart sound box product. The bass part has longer wavelength and strong diffraction capability and basically has no bottleneck due to the fact that low-frequency sound waves are long in wavelength, and the general upward or downward installed bass can meet the requirement of 360-degree full pointing horizontally. However, due to the short wavelength of the medium-high frequency, the off-axis response attenuation is too large, so that the medium-high frequency sound box becomes a hard damage on the design of various intelligent sound box products of large brands. The mainstream application mode of the current market products in the medium-high Sound scheme is to form an annular linear array by utilizing a plurality of loudspeaker units so as to meet the Sound performance requirement of 360-degree horizontal full pointing, such as apple HomePod, Hua is a Sound X intelligent Sound box product.
In the design, a plurality of high pitch loudspeakers are used to form a plurality of point sound sources which are distributed, and at any listening position around the sound box, the plurality of point sound sources have distance difference and off-axis angle difference to human ears, so that sound waves received by the ears have phase difference/time difference, sound interference is formed, and harmonic distortion is generated. The sound pressure deviation of different positions is large, and a non-uniform sound field is formed. The auditory sense deviation is large at different positions. The phase disorder caused by interference causes the sound image localization to be neglected and inaccurate, the tone quality is not clear enough, the details are not fine and smooth enough, and the tone quality loss is caused. Meanwhile, the near field sound pressure level of the loudspeaker is very high, so that a directional blind area of the loudspeaker is required to be selected at the installation position of a microphone array for picking up sound in a far field, the annular linear arrays of the multiple loudspeakers are installed on the cylindrical surface, the vertical directivity of the annular linear arrays of the multiple loudspeakers is not limited rigidly, no obvious directional blind area exists, and if the microphone array is waken up in the far field when the sound box plays music, the microphone array is greatly. And because a plurality of high pitch loudspeakers are used, the cost is higher, the energy consumption of the product is improved, and the cost performance of the product is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, the technology provides a symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker, and two diaphragms which are oppositely arranged on the high pitch loudspeaker vibrate relatively to radiate sound waves; the sound wave radiated by the single diaphragm is subjected to primary compression between the diaphragm and the phase plug and then enters the 6 first sound leakage channels through the 6 sound leakage ports of the unilateral phase plug; sound waves radiated by the two vibrating diaphragms enter the first sound discharging channel to be converged for secondary compression after primary compression; then, the sound waves of the 6 first sound leaking channels enter the horn array through 10 second sound leaking channels which are respectively arranged, and are radiated out. The technology totally has 6 multiplied by 10 which is 60 centrosymmetric annular horn arrays, and the radiation directivity range H multiplied by V of a product assembly is 360 degrees multiplied by 60 degrees. The inlet of the sound leakage channel is trapezoidal, the position close to the bottom is wider, the position close to the top of the sphere is narrower, the area is 1/18 of the diaphragm area, the compression ratio of the primary compression cavity is 3:1, the total number of the first sound leakage channels is 6, 10 secondary compression cavities are communicated, and the 60 horn rings are uniformly distributed on the circumference of 360 degrees and radiate sound outwards.
The utility model adopts the following technical scheme:
a symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker; the method comprises the following steps: the sound-emitting device comprises an upper sound track disc, a lower sound track disc, an upper sound-producing device, a lower sound-producing device, an upper cover plate and a lower cover plate; the method is characterized in that: the upper channel disc and the lower channel disc have the same structure; the integral structure of the upper sound track disc and the lower sound track disc is in a funnel-shaped design; the cross section of the steel tube is designed to be high at the center and low at the periphery of the outer surface; the outer surfaces of the upper sound track disc and the lower sound track disc are provided with a plurality of sound insulation plates from the circle center to the edge direction, and the upper ends of the sound insulation plates are a plane after the sound insulation plates are arranged on the outer surfaces of the upper sound track disc and the lower sound track disc; the upper sound channel disc and the lower sound channel disc are oppositely matched after being provided with the sound insulation boards, the upper sound channel disc and the sound insulation boards in the lower sound channel disc are oppositely matched and connected, a sound leakage channel is formed between every two adjacent sound insulation boards, and the sound leakage channel structure is gradually enlarged from inside to outside; the inner surfaces of the upper sound track disc and the lower sound track disc are provided with an upper sound producing device and a lower sound producing device; the upper sounding device and the lower sounding device have the same structure and are arranged oppositely; the upper cover plate and the lower cover plate are identical in structure and are oppositely arranged, the edges of the inner surfaces of the upper cover plate and the upper sound track disc are mutually installed, and the upper sound production device is wrapped inside the upper sound track disc; the lower cover plate and the edge of the inner surface of the lower sound track disc are mutually installed and wrap the lower sound emitting device inside; the upper sound channel disc and the lower sound channel disc are internally provided with an upper sound outlet and a lower sound outlet; the generating directions of the upper sound-emitting device and the lower sound-emitting device enter the sound-emitting channel through the upper sound-emitting port and the lower sound-emitting port.
Preferably, the upper sound track disc and the lower sound track disc have the same structure, and a plurality of sound insulation plates are arranged on the outer surfaces of the upper sound track disc and the lower sound track disc from the circle center to the edge direction; the upper channel disc and the lower channel disc have the same structure; take the following track disc as an example; the sound insulation board on the lower sound track disc consists of a plurality of first sound insulation boards and a plurality of second sound insulation boards; the first sound insulation boards are connected with the circle center structure of the surface of the lower sound channel disc and are arranged in an extending mode towards the edge, and the first sound insulation boards are uniformly distributed on the outer surface of the lower sound channel disc to uniformly divide the outer surface of the lower sound channel disc into a plurality of first sound leakage areas; the second sound insulation boards are arranged between the two first sound insulation boards, the second sound insulation boards are not connected with a circle center structure in the lower sound channel disc, and the plurality of second sound insulation boards uniformly isolate the rear part of the first sound leakage area into a plurality of second sound leakage areas; the first baffle and the second baffle are configured to separate the outer surface of the lower channel disc into a plurality of first sound venting areas and a plurality of second sound venting areas; the surfaces of the upper sound track disc and the lower sound track disc are oppositely provided with a plurality of sound insulation plate structures in a matched manner; the sound leakage channel is divided into an inner first sound leakage channel and an outer second sound leakage channel, and the upper sound leakage port and the lower sound leakage port on the upper sound production device and the lower sound production device are positioned in the first sound leakage channel.
Preferably, the upper channel disc and the lower channel disc have the same structure, and the lower channel disc is taken as an example; the inner surface of the lower sound track disc is provided with an inner arc surface and an outer arc surface in cross section, the radiuses of the inner arc surface and the outer arc surface are different, the inner edge of the outer arc surface is provided with a lower sound emitting device, and a gap is formed between the inner arc surface and the lower sound emitting device.
Preferably, there are 6 first sound leaking channels in the sound leaking channel, and the rear end of each first sound leaking channel is divided into 10 second sound leaking channels.
Drawings
Fig. 1 is a schematic view 1 of the present invention;
fig. 2 is a schematic view 2 provided by the present invention;
fig. 3 is a schematic view 3 provided by the present invention;
fig. 4 is a schematic diagram 4 provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, a symmetric dual-diaphragm horizontal full directional compression tweeter; the method comprises the following steps: the sound-emitting device comprises an upper sound track disc 1, a lower sound track disc 2, an upper sound-producing device 3, a lower sound-producing device 4, an upper cover plate 5 and a lower cover plate 6; the method is characterized in that: the upper channel disc 1 and the lower channel disc 2 have the same structure; the integral structure of the upper sound track disc 1 and the lower sound track disc 2 is in a funnel-shaped design; the cross section of the steel tube is designed to be high at the center and low at the periphery of the outer surface; a plurality of sound insulation plates are arranged on the outer surfaces of the upper sound channel disc 1 and the lower sound channel disc 2 from the circle center to the edge direction, and the upper ends of the sound insulation plates are a plane after the sound insulation plates are arranged on the outer surfaces of the upper sound channel disc 1 and the lower sound channel disc 2; the upper sound channel disc 1 and the lower sound channel disc 2 are oppositely matched after being provided with sound insulation boards, the upper sound channel disc 1 is oppositely matched and connected with the sound insulation boards in the lower sound channel disc 2, a sound leakage channel is formed between every two adjacent sound insulation boards, and the opening of the sound leakage channel structure is gradually enlarged from inside to outside; the inner surfaces of the upper sound track disc 1 and the lower sound track disc 2 are provided with an upper sound producing device 3 and a lower sound producing device 4; the upper sound-producing device 3 and the lower sound-producing device 4 have the same structure and are oppositely arranged; the upper cover plate 5 and the lower cover plate 6 are identical in structure and are oppositely arranged, the upper cover plate 5 and the edge of the inner surface of the upper sound track disc 1 are mutually installed, and the upper sound production device 3 is wrapped inside; the lower cover plate 6 and the edge of the inner surface of the lower sound track disc 2 are mutually installed and wrap the lower sound emitting device 4 inside; an upper sound vent and a lower sound vent 241 are arranged in the upper sound track disc 1 and the lower sound track disc 2; the generating direction of the upper sound-emitting device 1 and the lower sound-emitting device 2 enters the sound-emitting channel through the upper sound-emitting port and the lower sound-emitting port 241.
Preferably, the upper sound track disc 1 and the lower sound track disc 2 have the same structure, and a plurality of sound insulation boards are arranged on the outer surfaces of the upper sound track disc 1 and the lower sound track disc 2 from the circle center to the edge direction; the upper channel disc 1 and the lower channel disc 2 have the same structure; take the following track disc 2 as an example; the sound insulation board on the lower sound channel disk 2 is composed of a plurality of first sound insulation boards 21 and a plurality of second sound insulation boards 22; the first sound insulation boards 21 are connected with the circle center structure of the surface of the lower sound channel disc 2 and are arranged in an extending mode towards the edge, and the first sound insulation boards 21 are uniformly distributed on the outer surface of the lower sound channel disc 2 to uniformly divide the outer surface of the lower sound channel disc 2 into a plurality of first sound leakage areas; the second sound insulation board 22 is arranged between the two first sound insulation boards 21, the second sound insulation board 22 is not connected with a circle center structure in the lower sound channel disc 2, and the plurality of second sound insulation boards 22 uniformly isolate the rear part of the first sound leakage area into a plurality of second sound leakage areas; the first acoustic baffle 21 and the second acoustic baffle 22 are configured to separate the outer surface of the lower channel pan 2 into a plurality of first sound discharge areas and a plurality of second sound discharge areas; the surfaces of the upper sound channel disc 1 and the lower sound channel disc 2 are oppositely provided with a plurality of sound insulation plate structures in a matching way; the sound leakage channel is divided into an internal first sound leakage channel and an external second sound leakage channel, and the upper sound leakage port and the lower sound leakage port 241 on the upper sound-making device 3 and the lower sound-making device 4 are positioned in the first sound leakage channel.
Preferably, the upper channel disc 1 and the lower channel disc 2 have the same structure, and the lower channel disc 2 is taken as an example; the inner surface of the lower sound track disc 2 is provided with an inner arc surface 23 and an outer arc surface 24 on the cross section, the radiuses of the inner arc surface 23 and the outer arc surface 24 are different, the inner edge of the outer arc surface 23 is provided with a lower sound production device 4, and a gap is formed between the inner arc surface 24 and the lower sound production device 4.
Preferably, there are 6 first sound leaking channels in the sound leaking channel, and the rear end of each first sound leaking channel is divided into 10 second sound leaking channels.
A symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker radiates sound waves in a way that two diaphragms oppositely arranged on the high pitch loudspeaker vibrate relatively; the sound wave radiated by the single diaphragm is subjected to primary compression between the diaphragm and the phase plug and then enters the 6 first sound leakage channels through the 6 sound leakage ports of the unilateral phase plug; sound waves radiated by the two vibrating diaphragms enter the first sound discharging channel to be converged for secondary compression after primary compression; then, the sound waves of the 6 first sound leaking channels enter the horn array through 10 second sound leaking channels which are respectively arranged, and are radiated out. The technology totally has 6 multiplied by 10 which is 60 centrosymmetric annular horn arrays, and the radiation directivity range H multiplied by V of a product assembly is 360 degrees multiplied by 60 degrees. The inlet of the sound leakage channel is trapezoidal, the position close to the bottom is wider, the position close to the top of the sphere is narrower, the area is 1/18 of the diaphragm area, the compression ratio of the primary compression cavity is 3:1, the total number of the first sound leakage channels is 6, 10 secondary compression cavities are communicated, and the 60 horn rings are uniformly distributed on the circumference of 360 degrees and radiate sound outwards.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker; the method comprises the following steps: the sound-emitting device comprises an upper sound track disc, a lower sound track disc, an upper sound-producing device, a lower sound-producing device, an upper cover plate and a lower cover plate; the method is characterized in that: the upper channel disc and the lower channel disc have the same structure; the integral structure of the upper sound track disc and the lower sound track disc is in a funnel-shaped design; the cross section of the steel tube is designed to be high at the center and low at the periphery of the outer surface; the outer surfaces of the upper sound track disc and the lower sound track disc are provided with a plurality of sound insulation plates from the circle center to the edge direction, and the upper ends of the sound insulation plates are a plane after the sound insulation plates are arranged on the outer surfaces of the upper sound track disc and the lower sound track disc; the upper sound channel disc and the lower sound channel disc are oppositely matched after being provided with the sound insulation boards, the upper sound channel disc and the sound insulation boards in the lower sound channel disc are oppositely matched and connected, a sound leakage channel is formed between every two adjacent sound insulation boards, and the sound leakage channel structure is gradually enlarged from inside to outside; the inner surfaces of the upper sound track disc and the lower sound track disc are provided with an upper sound producing device and a lower sound producing device; the upper sounding device and the lower sounding device have the same structure and are arranged oppositely; the upper cover plate and the lower cover plate are identical in structure and are oppositely arranged, the edges of the inner surfaces of the upper cover plate and the upper sound track disc are mutually installed, and the upper sound production device is wrapped inside the upper sound track disc; the lower cover plate and the edge of the inner surface of the lower sound track disc are mutually installed and wrap the lower sound emitting device inside; the upper sound channel disc and the lower sound channel disc are internally provided with an upper sound outlet and a lower sound outlet; the generating directions of the upper sound-emitting device and the lower sound-emitting device enter the sound-emitting channel through the upper sound-emitting port and the lower sound-emitting port.
2. The symmetric dual-diaphragm horizontal omni-directional compression tweeter of claim 1, wherein the upper track disc and the lower track disc have the same structure, and a plurality of baffle plates are arranged on the outer surfaces of the upper track disc and the lower track disc from the center of a circle to the edge direction; the upper channel disc and the lower channel disc have the same structure; take the following track disc as an example; the sound insulation board on the lower sound track disc consists of a plurality of first sound insulation boards and a plurality of second sound insulation boards; the first sound insulation boards are connected with the circle center structure of the surface of the lower sound channel disc and are arranged in an extending mode towards the edge, and the first sound insulation boards are uniformly distributed on the outer surface of the lower sound channel disc to uniformly divide the outer surface of the lower sound channel disc into a plurality of first sound leakage areas; the second sound insulation boards are arranged between the two first sound insulation boards, the second sound insulation boards are not connected with a circle center structure in the lower sound channel disc, and the plurality of second sound insulation boards uniformly isolate the rear part of the first sound leakage area into a plurality of second sound leakage areas; the first baffle and the second baffle are configured to separate the outer surface of the lower channel disc into a plurality of first sound venting areas and a plurality of second sound venting areas; the surfaces of the upper sound track disc and the lower sound track disc are oppositely provided with a plurality of sound insulation plate structures in a matched manner; the sound leakage channel is divided into an inner first sound leakage channel and an outer second sound leakage channel, and the upper sound leakage port and the lower sound leakage port on the upper sound production device and the lower sound production device are positioned in the first sound leakage channel.
3. The symmetric dual-diaphragm horizontal full directional compression tweeter speaker of claim 1, wherein the upper channel plate is structurally identical to the lower channel plate, exemplified by the lower channel plate; the inner surface of the lower sound track disc is provided with an inner arc surface and an outer arc surface in cross section, the radiuses of the inner arc surface and the outer arc surface are different, the inner edge of the outer arc surface is provided with a lower sound emitting device, and a gap is formed between the inner arc surface and the lower sound emitting device.
4. The symmetric dual-diaphragm horizontal full directional compression tweeter of claim 1, wherein the sound attenuating channel has 6 first sound attenuating channels therein, and each first sound attenuating channel has 10 second sound attenuating channels at a rear end thereof.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021362425.4U CN212344059U (en) | 2020-07-13 | 2020-07-13 | Symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021362425.4U CN212344059U (en) | 2020-07-13 | 2020-07-13 | Symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker |
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| CN212344059U true CN212344059U (en) | 2021-01-12 |
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| CN202021362425.4U Active CN212344059U (en) | 2020-07-13 | 2020-07-13 | Symmetrical double-diaphragm horizontal full-directional compression high pitch loudspeaker |
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| CN (1) | CN212344059U (en) |
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