CN102361501A - Multi-point excitation loudspeaker array - Google Patents
Multi-point excitation loudspeaker array Download PDFInfo
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- CN102361501A CN102361501A CN2011102439217A CN201110243921A CN102361501A CN 102361501 A CN102361501 A CN 102361501A CN 2011102439217 A CN2011102439217 A CN 2011102439217A CN 201110243921 A CN201110243921 A CN 201110243921A CN 102361501 A CN102361501 A CN 102361501A
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Abstract
The invention relates to a multi-point excitation loudspeaker array which is characterized in that: the array comprise a basin rack which is provided with at least five independent sound cavities, a number of the sound cavities is an odd number, each sound cavity is provided with a loudspeaker unit, all loudspeaker units are arranged in straight lines in the basin rack and are on a same installation plane, and distances between adjacent loudspeaker units are same. The invention has the characteristics of ingenious structure, simplicity and compactness, the loudspeaker units are arranged in an easily realized mode, when adding the loudspeaker units, small directive change of the whole array is ensured, total harmonic distortion and unevenness of the array are decreased, thus a sound pressure level of the array is raised, sound quality and reliability are ensured, and the array can be designed as a component integrated in a flat television or an external accessory of the flat television to improve the sound quality further. The multi-point excitation loudspeaker array has the advantages of good frequency response, excellent directive, large bearing power, small distortion, a high sound pressure level and the like.
Description
Technical field
The invention belongs to the electroacoustic techniques field, relate to a kind of loud speaker, the multiple spot excitation loudspeaker array that specifically a kind of panel TV is used with a plurality of small-bore loudspeaker units.
Background technology
In the prior art, the panel TV product is used single small-bore loud speaker usually, and shortcoming is that maximum sound pressure level is low, distortion is big, medium-high frequency is undesirable; And when adopting multi-loudspeaker to form " sound column formula " array,,, cause directive property narrow because of the interference between a plurality of loud speakers though can improve maximum sound pressure level." sound column formula " array that particularly at present popular panel TV loud speaker is laterally placed very easily produces secondary lobe, and it is chaotic to cause sound field to distribute, both poor sound quality.In order to improve the high frequency directive property of loudspeaker array; Evolutionary approach such as spirality array and acoustic load array have appearred in succession; Occurred more advanced continuous linear, camber line shape, J-shaped, loudspeaker line array such as gradual afterwards again, they are applied on the large-scale sound reinforcement systems such as performing art square, stadiums mostly.Since the panel TV product leave for loud speaker that the space is set is more and more thinner, more and more littler, the loudspeaker array structure that requires panel TV to use is small and exquisite as far as possible, the loudspeaker array of aforesaid way is on the panel TV product and inapplicable.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art; A kind of structure multiple activation point loudspeaker array cleverly is provided; Its directive property that when increasing loudspeaker unit, can guarantee whole array changes less; Reduce the total harmonic distortion and the uneven degree of array, thereby improve the sound pressure level of array, guarantee tonequality and reliability.
According to technical scheme provided by the invention: a kind of multiple spot excitation loudspeaker array; It is characterized in that: comprise a basin frame; Be provided with number in this basin frame and be at least independently sound chamber of five odd number, a loudspeaker unit is installed in each sound chamber, all loudspeaker unit linearities are arranged and are arranged in the said basin frame; All loudspeaker units are positioned on the same mounting plane, and the distance between the adjacent loudspeaker unit is identical.
As further improvement of the present invention, cavity and rear chamber before said basin frame comprises, preceding cavity and rear chamber are combined closely fixing; Be divided into number through several ante-chamber dividing plates that equidistantly distribute in the cavity before said and be at least semitone chamber before five the odd number, loudspeaker unit is screwed on the panel in preceding semitone chamber; Be divided into number through several back cavity dividing plates that equidistantly distribute in the said rear chamber and be at least semitone chamber behind five the odd number, said before the semitone chamber be combined into complete sound chamber correspondingly with semitone chamber, back.
As further improvement of the present invention, be provided with long phonocatheter and the short-range missile sound pipe that is located along the same line along its length direction in the said basin frame, long phonocatheter is identical with short-range missile sound pipe bore but length different; Long phonocatheter runs through several sound chambeies in the basin frame, the exterior of long phonocatheter outer end and basin frame one end, and long phonocatheter is inner to communicate with certain interior sound chamber of basin frame; The short-range missile sound pipe runs through several sound chambeies in the basin frame, the exterior of the short-range missile sound pipe outer end and the basin frame other end, and the short-range missile sound pipe is inner to communicate with another interior sound chamber of basin frame; Inner sound chamber that is communicated with of said and long phonocatheter and the sound chamber that is communicated with short-range missile sound pipe the inner are adjacent.
As further improvement of the present invention, the sound chamber that said and long phonocatheter the inner communicates is a sound chamber in the middle of the basin frame.
As further improvement of the present invention, certain-length in the sound chamber that is communicated with it is stretched in said long phonocatheter the inner, and certain-length in the sound chamber that is communicated with it is stretched in said short-range missile sound pipe the inner, so that expand the low-frequency minimum frequency of loudspeaker unit.
As further improvement of the present invention, said long phonocatheter and short-range missile sound pipe are arranged in the rear chamber.
As further improvement of the present invention, said long phonocatheter and short-range missile sound pipe and the rear chamber structure that is formed in one to strengthen the rigidity and the intensity of long phonocatheter and short-range missile sound pipe and rear chamber, reduces the vibration of speaker operation duration phonocatheter and short-range missile sound pipe.
As further improvement of the present invention, the sound chamber number of said basin frame is five, and correspondence is installed with five small-bore loudspeaker units that dimensions is identical in five sound chambeies.
As further improvement of the present invention, said preceding cavity, rear chamber, long phonocatheter and short-range missile sound pipe all adopt commaterial to process.The injection mo(u)lding of preferred employing plastic material.
The present invention compared with prior art; Advantage is: ingenious, the compact of structure of the present invention, with the mode that realizes the most easily loudspeaker unit is arranged setting, and its directive property that when increasing loudspeaker unit, can guarantee whole array changes less; Reduce the total harmonic distortion and the uneven degree of array; Thereby improve the sound pressure level of array, guarantee tonequality and reliability, both can be designed to be melted into the parts in the panel TV so that use; The external accessory that also can be used as panel TV is with further lifting tonequality, has that frequency response is good, directive property is excellent, can bear that power is big, distortion is little, the sound pressure level advantages of higher.
Description of drawings
Fig. 1 is the assembling exploded perspective sketch map of the embodiment of the invention.
Fig. 2 is the structure cutaway view of basin frame among Fig. 1.
Fig. 3 is the schematic perspective view of Fig. 1.
Fig. 4 is the frequency response curve comparison diagram of the embodiment of the invention and single loud speaker.
Fig. 5 is the directive property resolution chart of the embodiment of the invention.
Description of reference numerals: semitone chamber, the preceding cavity of 2-, 2a-ante-chamber dividing plate, the preceding semitone chamber of 2b-, 3-loudspeaker unit, 4-screw, the long phonocatheter of 5a-, 5b-short-range missile sound pipe behind 1-rear chamber, 1a-back cavity dividing plate, the 1b-.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in the figure, the multiple spot excitation loudspeaker array among the embodiment mainly is made up of rear chamber 1, preceding cavity 2, loudspeaker unit 3 and screw 4.
Shown in Fig. 1 ~ 3, said preceding cavity 2 and rear chamber 1 are combined closely fixing, form the basin frame, are provided with five independently sound chambeies in the basin frame, and correspondence is installed with five small-bore loudspeaker units 3 that dimensions is identical in five sound chambeies; Be divided into five preceding semitone chamber 2b through four ante-chamber dividing plate 2a that equidistantly distribute in the cavity 2 before said, loudspeaker unit 3 usefulness screws 4 are fixed on the panel of preceding semitone chamber 2b; Semitone chamber 1b after said rear chamber 1 interior back cavity dividing plate 1a through four equidistant distributions are divided into five, preceding semitone chamber 2b and back semitone chamber 1b are combined into complete sound chamber correspondingly; All loudspeaker unit 3 linearities are arranged and are arranged in the said basin frame, and all loudspeaker units 3 are positioned on the same mounting plane, and the distance between the adjacent loudspeaker unit 3 is identical.
As shown in the figure, be provided with long phonocatheter 5a and the short-range missile sound pipe 5b that is located along the same line along its length direction in the said basin frame, long phonocatheter 5a is identical with short-range missile sound pipe 5b bore but length different; Long phonocatheter 5a runs through three sound chambeies in the basin frame, the exterior of long phonocatheter 5a outer end and basin frame one end, and long phonocatheter 5a is inner to communicate with certain interior sound chamber of basin frame; Short-range missile sound pipe 5b runs through two sound chambeies in the basin frame, the exterior of the short-range missile sound pipe 5b outer end and the basin frame other end, and short-range missile sound pipe 5b is inner to communicate with another interior sound chamber of basin frame; Inner sound chamber that is communicated with of said and long phonocatheter 5a and the sound chamber that is communicated with short-range missile sound pipe 5b the inner are adjacent.Preferably, the sound chamber that communicates, said and long phonocatheter 5a the inner is a sound chamber in the middle of the basin frame.
As shown in the figure, for ease of expanding the low-frequency minimum frequency of loudspeaker unit 3, said long phonocatheter 5a stretches into certain-length in the sound chamber that is communicated with it in the inner, and said short-range missile sound pipe 5b stretches into certain-length in the sound chamber that is communicated with it in the inner.
As shown in the figure; Said long phonocatheter 5a and short-range missile sound pipe 5b are arranged in the rear chamber 1; Long phonocatheter 5a and short-range missile sound pipe 5b and rear chamber 1 structure that is formed in one; Can strengthen the rigidity and the intensity of long phonocatheter 5a, short-range missile sound pipe 5b and rear chamber 1 like this, the vibration of phonocatheter when reducing speaker operation.
Among the present invention, said preceding cavity 2, rear chamber 1, long phonocatheter 5a and short-range missile sound pipe 5b all adopt commaterial to process.The injection mo(u)lding of preferred employing plastic material.
Adopt GB/T9396-1996 " loud speaker main performance method of measurement " standard that multiple spot excitation loudspeaker array of the present invention is carried out frequency response curve detection and directive property test; Detection was met like Fig. 4, shown in Figure 5; Under the measurement environment of equal voltage, distance; The average sound pressure level of multiple spot excitation loudspeaker array in effective frequency range is apparently higher than single loudspeaker unit 3, and directive property changes less.
Claims (10)
1. a multiple spot encourages loudspeaker array; It is characterized in that: comprise a basin frame; Be provided with number in this basin frame and be at least independently sound chamber of five odd number, a loudspeaker unit (3) is installed in each sound chamber, all loudspeaker units (3) linearity is arranged and is arranged in the said basin frame; All loudspeaker units (3) are positioned on the same mounting plane, and the distance between the adjacent loudspeaker unit (3) is identical.
2. multiple spot excitation loudspeaker array as claimed in claim 1, it is characterized in that: said basin frame comprises preceding cavity (2) and rear chamber (1), preceding cavity (2) and rear chamber (1) are combined closely fixing; Be divided into number through several ante-chamber dividing plates (2a) that equidistantly distribute in the cavity (2) before said and be at least semitone chamber (2b) before five the odd number, loudspeaker unit (3) is fixed on the panel in preceding semitone chamber (2b); Be divided into number through several back cavity dividing plates (1a) that equidistantly distribute in the said rear chamber (1) and be at least semitone chamber (1b) behind five the odd number, said before semitone chamber (2b) with after semitone chamber (1b) be combined into complete sound chamber correspondingly.
3. multiple spot excitation loudspeaker array as claimed in claim 1; It is characterized in that: be provided with long phonocatheter (5a) and the short-range missile sound pipe (5b) that is located along the same line along its length direction in the said basin frame, long phonocatheter (5a) is identical with short-range missile sound pipe (5b) bore but length different; Long phonocatheter (5a) runs through several sound chambeies in the basin frame, the exterior of long phonocatheter (5a) outer end and basin frame one end, and long phonocatheter (5a) is inner to communicate with certain interior sound chamber of basin frame; Short-range missile sound pipe (5b) runs through several sound chambeies in the basin frame, the exterior of short-range missile sound pipe (5b) outer end and the basin frame other end, and short-range missile sound pipe (5b) is inner to communicate with another interior sound chamber of basin frame; Inner sound chamber that is communicated with of said and long phonocatheter (5a) and the sound chamber that is communicated with short-range missile sound pipe (5b) the inner are adjacent.
4. multiple spot excitation loudspeaker array as claimed in claim 3, it is characterized in that: the sound chamber that said and long phonocatheter (5a) the inner communicates is a sound chamber in the middle of the basin frame.
5. multiple spot excitation loudspeaker array as claimed in claim 3, it is characterized in that: certain-length in the sound chamber that is communicated with it is stretched in said long phonocatheter (5a) the inner, and certain-length in the sound chamber that is communicated with it is stretched in said short-range missile sound pipe (5b) the inner.
6. multiple spot excitation loudspeaker array as claimed in claim 3, it is characterized in that: said long phonocatheter (5a) and short-range missile sound pipe (5b) are arranged in the rear chamber (1).
7. multiple spot as claimed in claim 6 excitation loudspeaker array is characterized in that: said long phonocatheter (5a) and short-range missile sound pipe (5b) and rear chamber (1) structure that is formed in one.
8. multiple spot excitation loudspeaker array as claimed in claim 1, it is characterized in that: the sound chamber number of said basin frame is five, correspondence is installed with five small-bore loudspeaker units (3) that dimensions is identical in five sound chambeies.
9. multiple spot excitation loudspeaker array as claimed in claim 1, it is characterized in that: cavity (2), rear chamber (1), long phonocatheter (5a) and short-range missile sound pipe (5b) all adopt commaterial to process before said.
10. multiple spot excitation loudspeaker array as claimed in claim 1, it is characterized in that: cavity (2), rear chamber (1), long phonocatheter (5a) and short-range missile sound pipe (5b) all adopt the plastic material injection mo(u)lding before said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110243921.7A CN102361501B (en) | 2011-08-24 | 2011-08-24 | Multi-point excitation loudspeaker array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110243921.7A CN102361501B (en) | 2011-08-24 | 2011-08-24 | Multi-point excitation loudspeaker array |
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| Publication Number | Publication Date |
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| CN102361501A true CN102361501A (en) | 2012-02-22 |
| CN102361501B CN102361501B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110243921.7A Active CN102361501B (en) | 2011-08-24 | 2011-08-24 | Multi-point excitation loudspeaker array |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209373A (en) * | 2013-04-16 | 2013-07-17 | 歌尔声学股份有限公司 | Speaker module and production method thereof |
| WO2014032550A1 (en) * | 2012-08-25 | 2014-03-06 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN105933630A (en) * | 2016-06-03 | 2016-09-07 | 深圳创维－Rgb电子有限公司 | Television |
| CN111432312A (en) * | 2019-01-09 | 2020-07-17 | 台湾立讯精密有限公司 | Thin speaker device |
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| US4399328A (en) * | 1980-02-25 | 1983-08-16 | U.S. Philips Corporation | Direction and frequency independent column of electro-acoustic transducers |
| JP2008258968A (en) * | 2007-04-05 | 2008-10-23 | Mitsubishi Electric Engineering Co Ltd | Array speaker |
| CN201349323Y (en) * | 2009-01-12 | 2009-11-18 | 四川长虹电器股份有限公司 | Concealed speaker system of liquid crystal TV |
| CN101820562A (en) * | 2010-04-07 | 2010-09-01 | 南京大学 | Five-sound source loudspeaker array with wide radiation angle |
| CN202261701U (en) * | 2011-08-24 | 2012-05-30 | 无锡杰夫电声有限公司 | Multi-point excitation loudspeaker array |
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2011
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Patent Citations (5)
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| US4399328A (en) * | 1980-02-25 | 1983-08-16 | U.S. Philips Corporation | Direction and frequency independent column of electro-acoustic transducers |
| JP2008258968A (en) * | 2007-04-05 | 2008-10-23 | Mitsubishi Electric Engineering Co Ltd | Array speaker |
| CN201349323Y (en) * | 2009-01-12 | 2009-11-18 | 四川长虹电器股份有限公司 | Concealed speaker system of liquid crystal TV |
| CN101820562A (en) * | 2010-04-07 | 2010-09-01 | 南京大学 | Five-sound source loudspeaker array with wide radiation angle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032550A1 (en) * | 2012-08-25 | 2014-03-06 | 歌尔声学股份有限公司 | Loudspeaker module |
| KR20150036753A (en) * | 2012-08-25 | 2015-04-07 | 고어텍 인크 | Loudspeaker module |
| US9241207B2 (en) | 2012-08-25 | 2016-01-19 | Goertek Inc. | Speaker module |
| KR101657917B1 (en) | 2012-08-25 | 2016-09-19 | 고어텍 인크 | Loudspeaker module |
| CN103209373A (en) * | 2013-04-16 | 2013-07-17 | 歌尔声学股份有限公司 | Speaker module and production method thereof |
| CN103209373B (en) * | 2013-04-16 | 2017-03-01 | 歌尔股份有限公司 | Speaker module and its manufacture method |
| CN105933630A (en) * | 2016-06-03 | 2016-09-07 | 深圳创维－Rgb电子有限公司 | Television |
| CN111432312A (en) * | 2019-01-09 | 2020-07-17 | 台湾立讯精密有限公司 | Thin speaker device |
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| CN102361501B (en) | 2014-04-02 |
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Address after: 214192 Xishan, Jiangsu, Beizhen Tin Tin Tin Road, No. eight, No. 228 Patentee after: WUXI JIEFU ELECTROACOUSTIC CO., LTD. Address before: 214192 eight Wuxi, Beizhen, Xishan District, Jiangsu Patentee before: Jiefu Electroacoustic Co., Ltd., Wuxi |