CN104168525A - Inverted phase type multipoint excitation loudspeaker case - Google Patents
Inverted phase type multipoint excitation loudspeaker case Download PDFInfo
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- CN104168525A CN104168525A CN201410359920.2A CN201410359920A CN104168525A CN 104168525 A CN104168525 A CN 104168525A CN 201410359920 A CN201410359920 A CN 201410359920A CN 104168525 A CN104168525 A CN 104168525A
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Abstract
The invention relates to an inverted phase type multipoint excitation loudspeaker case. The inverted phase type multipoint excitation loudspeaker case comprises a casing and a multipoint excitation source. The multipoint excitation source comprises multiple loudspeaker units. The inverted phase type multipoint excitation loudspeaker case is characterized in that the casing is prolate-shaped, multiple loudspeaker installing holes are arranged in the length direction of a front panel of the casing, and the multiple loudspeaker units are installed in the loudspeaker installing holes in a one-to-to corresponding mode; the inner wall of a rear panel of the casing is provided with multiple separator plates which are vertical to the rear panel of the casing, the multiple separator plates segments the rear half part of a casing cavity into a plurality of branch rear cavities, the plurality of branch rear cavities communicate with each other through gaps at the top portions of the separator plates; and the rear portion of the casing is provided with a sound guide pipe which is arranged along the length direction of the casing, one end of the sound guide pipe penetrates the multiple separator plates and is connected with one of the branch rear cavities, and the other end of the sound guide pipe is connected with the outside of the casing. The inverted phase type multipoint excitation loudspeaker case has the following advantages: the structure is ingenious, at the time when the quantity of the loudspeaker units is not increased, the sound pressure level and the sound quality of a whole system can be guaranteed, and it can be ensured that the structure of a product accords with the requirement of a flat television.
Description
Technical field
The present invention relates to a kind of loudspeaker enclosure, specifically a kind of inverted phase type excitation loudspeaker enclosure that is suitable for using on television set, belongs to electroacoustic techniques field.
Background technology
In prior art, panel TV product is the single loudspeaker unit of application conventionally, and shortcoming is that maximum sound pressure level is low, distortion is large, tonequality is undesirable; And while adopting a plurality of loudspeaker units to form loudspeaker enclosure, although can improve maximum sound pressure level and tonequality, because a plurality of loudspeaker unit numbers increase, cause structure to become large thickening, and cost increases.Due to the panel TV products such as LED leave for loud speaker that space is set is more and more thinner, more and more less, the loudspeaker enclosure that requires panel TV to use is small and exquisite as far as possible, and also lower as far as possible to the cost requirement of loudspeaker enclosure, but tonequality is high as far as possible.Therefore, traditional single loudspeaker unit, and the mode of a plurality of loudspeaker unit composition loudspeaker enclosure is also inapplicable on panel TV.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of inverted phase type excitation loudspeaker enclosure is provided, and its structure is ingenious, when not increasing loudspeaker unit quantity, can guarantee sound pressure level and the tonequality of whole system, thereby guarantee that product structure meets the requirement of panel TV.
According to technical scheme provided by the invention: inverted phase type excitation source loudspeaker enclosure, comprise casing and excitation source, described excitation source comprises a plurality of loudspeaker units, it is characterized in that: described casing is prolate shape, on the length direction of casing front panel, be provided with a plurality of loud speaker installing holes, a plurality of loudspeaker units are arranged in loud speaker installing hole correspondingly; The inwall of described cabinet rear panel is provided with a plurality of dividing plates perpendicular to cabinet rear panel, and described a plurality of dividing plates are divided into several branch's back cavities by the latter half of cabinets cavity, and several described branch's back cavities are interconnected by the space at dividing plate top; Described casing rear portion is provided with phonocatheter, and described phonocatheter is along the length direction setting of casing, and phonocatheter one end is run through a plurality of dividing plates and is connected with one of them branch's back cavity, and the phonocatheter other end is connected with casing is outside.
As a further improvement on the present invention, described casing is mainly comprised of front cavity and rear chamber, and described loud speaker installing hole is opened on front cavity, and described dividing plate is arranged on the inwall of rear chamber, and described phonocatheter and rear chamber are one-body molded.
As a further improvement on the present invention, each described loudspeaker unit comprises respectively U-shaped conductive magnetic yoke, locating branch slice, voice coil loudspeaker voice coil, magnetic structure and sound basin, described U-shaped conductive magnetic yoke is arranged in loud speaker installing hole, and magnetic structure is arranged in U-shaped conductive magnetic yoke and with U-shaped conductive magnetic yoke bottom and combines closely; Described voice coil loudspeaker voice coil lower end is arranged in U-shaped conductive magnetic yoke and is looped around magnetic structure periphery, and voice-coil inwall and magnetic structure outer wall leave space, and voice coil loudspeaker voice coil outer wall and U-shaped conductive magnetic yoke inwall leave space; Described locating branch slice is arranged on voice coil loudspeaker voice coil periphery, and locating branch slice inwall and voice coil loudspeaker voice coil outer wall are combined closely, and locating branch slice outer wall and loud speaker installing hole inwall are combined closely; Described sound basin be arranged on U-shaped conductive magnetic yoke directly over, the outer of sound basin is connected on casing front panel, voice coil loudspeaker voice coil upper end penetrates the taper basin mesopore of sound basin, the taper basin mesopore inwall of voice coil loudspeaker voice coil outer wall and sound basin is combined closely.
As a further improvement on the present invention, a plurality of loudspeaker units in described excitation source share same sound basin, described sound basin is microscler, and one-body molded on sound basin have a plurality of taper basin mesopores, and described a plurality of taper basin mesopores are corresponding one by one with a plurality of loudspeaker units.
As a further improvement on the present invention, the top of described voice coil loudspeaker voice coil is provided with dust cap.
As a further improvement on the present invention, described excitation source comprises two loudspeaker units, is provided with two loud speaker installing holes on the length direction of casing front panel, and two loudspeaker units are arranged on respectively in two loud speaker installing holes; The inwall of described cabinet rear panel is provided with five perpendicular to the dividing plate of cabinet rear panel, and five described dividing plates are divided into Liu Ge branch back cavity by the latter half of cabinets cavity, and described phonocatheter one end is run through three dividing plates and is connected with one of them branch's back cavity.
As a further improvement on the present invention, the overhead height of described dividing plate is consistent, and the plane at all dividing plates top of take is boundary, and in several described branch's back cavities, the volume of the branch's back cavity being communicated with phonocatheter is greater than the volume of all the other branch's back cavities.
As a further improvement on the present invention, described rear chamber, front cavity and phonocatheter adopt same material to make.
As a further improvement on the present invention, described rear chamber, front cavity and phonocatheter adopt plastic material to make.
compared with prior art, advantage is in the present invention:structure of the present invention is ingenious rationally, it is arranged on excitation source on casing front panel in the mode the most easily realizing, by dividing plate and phonocatheter are set on cabinet rear panel inwall, form a plurality of relatively independent branch's back cavities that are interconnected again, by phonocatheter, to external radiation all-bottom sound, do not increasing number of loudspeakers and do not increasing under the prerequisite of audio amplifier cavity volume, strengthening this loudspeaker enclosure and can bear power, there is tonequality good, the advantage such as structure is small and exquisite.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the assembling schematic diagram of the embodiment of the present invention
Description of reference numerals: 1-front cavity, 1a-mounting groove, 2-rear chamber, 3-loudspeaker unit, 3a-U-shaped conductive magnetic yoke, 3b-locating branch slice, 3c-magnetic structure, 3d-voice coil loudspeaker voice coil, 3e-dust cap, 3f-sound basin, 4-dividing plate, 5-branch back cavity, 6-phonocatheter.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure: the inverted phase type excitation source loudspeaker enclosure in embodiment is mainly comprised of front cavity 1, rear chamber 2, loudspeaker unit 3, dividing plate 4 and phonocatheter 6 etc.
As shown in Figure 1 and Figure 2, described front cavity 1 and rear chamber 2 form the casing of prolate shape, the length direction of front cavity 1 is provided with two loud speaker installing hole 1a, and two loudspeaker units 3 are arranged on respectively in two loud speaker installing hole 1a, and two woofer unit 3 form excitation source.
As shown in Figure 1 and Figure 2, the inwall of described rear chamber 2 is provided with five perpendicular to the dividing plate 4 of rear chamber panel, five described dividing plates 4 are divided into Liu Ge branch back cavity 5 by the inner chamber of rear chamber 2, front cavity 1 forms after complete casing with rear chamber 2, and described Liu Ge branch back cavity 5 is interconnected by the space at dividing plate 4 tops; Described rear chamber 2 is provided with phonocatheter 6, and described phonocatheter 6 is along the length direction setting of rear chamber 2, and phonocatheter 6 one end are run through three dividing plates 4 and are connected with one of them branch's back cavity 5, and phonocatheter 6 other ends are connected with casing is outside.
And the overhead height of described five dividing plates 4 is consistent, the plane at all dividing plates 4 tops of take is boundary, and in described Liu Ge branch back cavity 5, the volume of the branch's back cavity 5 being communicated with phonocatheter 6 is greater than the volume of all the other branch's back cavities 5.In addition, described phonocatheter 6 and rear chamber 2 are preferably one-body molded, can strengthen like this rigidity and the intensity of phonocatheter 6 and rear chamber 2, the vibration of phonocatheter 6 while reducing speaker operation.
As shown in Figure 1 and Figure 2, each described loudspeaker unit 3 is all mainly U-shaped conductive magnetic yoke 3a, locating branch slice 3b, voice coil loudspeaker voice coil 3c, magnetic structure 3d, dust cap 3e and sound basin 3f, to consist of, described U-shaped conductive magnetic yoke 3a is arranged in loud speaker installing hole 1a, magnetic structure 3d is arranged in U-shaped conductive magnetic yoke 3a and with U-shaped conductive magnetic yoke 3a bottom and combines closely, and described magnetic structure 3d can adopt conventional magnetic structure 3d[of the prior art to comprise magnet and magnetic pole core]; Described voice coil loudspeaker voice coil 3c lower end is arranged in U-shaped conductive magnetic yoke 3a and is looped around magnetic structure 3d periphery, and voice coil loudspeaker voice coil 3c inwall and magnetic structure 3d outer wall leave space, and voice coil loudspeaker voice coil 3c outer wall and U-shaped conductive magnetic yoke 3a inwall leave space; It is peripheral that described locating branch slice 3b is arranged on voice coil loudspeaker voice coil 3c, and locating branch slice 3b inwall and voice coil loudspeaker voice coil 3c outer wall are combined closely, and locating branch slice 3b outer wall and loud speaker installing hole 1a inwall are combined closely; Described sound basin 3f be arranged on U-shaped conductive magnetic yoke 3a directly over, the outer of sound basin 3f is connected on casing front panel, voice coil loudspeaker voice coil 3c upper end penetrates the taper basin mesopore of sound basin 3f, and the taper basin mesopore inwall of voice coil loudspeaker voice coil 3c outer wall and sound basin 3f is combined closely, and the top of described voice coil loudspeaker voice coil 3c is provided with dust cap 3e.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, two loudspeaker units 3 in described excitation source share same sound basin 3f, and described sound basin 3f is microscler, upper one-body molded two the taper basin mesopores that have of sound basin 3f, two described taper basin mesopores are corresponding one by one with two loudspeaker units 3.
In the present invention, described rear chamber 2, front cavity 1 and phonocatheter 6 adopt same material to make, and preferably adopt plastic material to make.
Claims (9)
1. inverted phase type excitation source loudspeaker enclosure, comprise casing and excitation source, described excitation source comprises a plurality of loudspeaker units (3), it is characterized in that: described casing is prolate shape, on the length direction of casing front panel, be provided with a plurality of loud speaker installing holes (1a), a plurality of loudspeaker units (3) are arranged in loud speaker installing hole (1a) correspondingly; The inwall of described cabinet rear panel is provided with a plurality of dividing plates perpendicular to cabinet rear panel (4), described a plurality of dividing plates (4) are divided into several branch's back cavities (5) by the latter half of cabinets cavity, and several described branch's back cavities (5) are interconnected by the space at dividing plate (4) top; Described casing rear portion is provided with phonocatheter (6), and described phonocatheter (6) is along the length direction setting of casing, and phonocatheter (6) one end is run through a plurality of dividing plates (4) and is connected with one of them branch's back cavity (5), and phonocatheter (6) other end is connected with casing is outside.
2. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described casing is mainly comprised of front cavity (1) and rear chamber (2), described loud speaker installing hole (1a) is opened on front cavity (1), described dividing plate (4) is arranged on the inwall of rear chamber (2), and described phonocatheter (6) is one-body molded with rear chamber (2).
3. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described each loudspeaker unit (3) comprises respectively U-shaped conductive magnetic yoke (3a), locating branch slice (3b), voice coil loudspeaker voice coil (3c), magnetic structure (3d) and sound basin (3f), described U-shaped conductive magnetic yoke (3a) is arranged in loud speaker installing hole (1a), and magnetic structure (3d) is arranged in U-shaped conductive magnetic yoke (3a) and with U-shaped conductive magnetic yoke (3a) bottom and combines closely; Described voice coil loudspeaker voice coil (3c) lower end is arranged in U-shaped conductive magnetic yoke (3a) and is looped around magnetic structure (3d) periphery, and voice coil loudspeaker voice coil (3c) inwall and magnetic structure (3d) outer wall leave space, and voice coil loudspeaker voice coil (3c) outer wall and U-shaped conductive magnetic yoke (3a) inwall leave space; Described locating branch slice (3b) is arranged on voice coil loudspeaker voice coil (3c) periphery, and locating branch slice (3b) inwall and voice coil loudspeaker voice coil (3c) outer wall are combined closely, and locating branch slice (3b) outer wall and loud speaker installing hole (1a) inwall are combined closely; Described sound basin (3f) be arranged on U-shaped conductive magnetic yoke (3a) directly over, the outer of sound basin (3f) is connected on casing front panel, voice coil loudspeaker voice coil (3c) upper end penetrates the taper basin mesopore of sound basin (3f), and the taper basin mesopore inwall of voice coil loudspeaker voice coil (3c) outer wall and sound basin (3f) is combined closely.
4. inverted phase type excitation as claimed in claim 3 source loudspeaker enclosure, it is characterized in that: a plurality of loudspeaker units (3) in described excitation source share same sound basin (3f), described sound basin (3f) is microscler, the upper one-body molded a plurality of taper basin mesopores that have of sound basin (3f), described a plurality of taper basin mesopores are corresponding one by one with a plurality of loudspeaker units (3).
5. inverted phase type excitation as claimed in claim 3 source loudspeaker enclosure, is characterized in that: the top of described voice coil loudspeaker voice coil (3c) is provided with dust cap (3e).
6. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described excitation source comprises two loudspeaker units (3), on the length direction of casing front panel, be provided with two loud speaker installing holes (1a), two loudspeaker units (3) are arranged on respectively in two loud speaker installing holes (1a); The inwall of described cabinet rear panel is provided with five dividing plates perpendicular to cabinet rear panel (4), described five dividing plates (4) are divided into Liu Ge branch back cavity (5) by the latter half of cabinets cavity, and described phonocatheter (6) one end is run through three dividing plates (4) and is connected with one of them branch's back cavity (5).
7. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: the overhead height of described dividing plate (4) is consistent, the plane at all dividing plates (4) top of take is boundary, in several described branch's back cavities (5), the volume of the branch's back cavity (5) being communicated with phonocatheter (6) is greater than the volume of all the other branch's back cavities (5).
8. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, is characterized in that: described rear chamber (2), front cavity (1) and phonocatheter (6) adopt same material to make.
9. inverted phase type excitation as claimed in claim 1 source loudspeaker enclosure, is characterized in that: described rear chamber (2), front cavity (1) and phonocatheter (6) adopt plastic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359920.2A CN104168525A (en) | 2014-07-25 | 2014-07-25 | Inverted phase type multipoint excitation loudspeaker case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359920.2A CN104168525A (en) | 2014-07-25 | 2014-07-25 | Inverted phase type multipoint excitation loudspeaker case |
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| Publication Number | Publication Date |
|---|---|
| CN104168525A true CN104168525A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410359920.2A Pending CN104168525A (en) | 2014-07-25 | 2014-07-25 | Inverted phase type multipoint excitation loudspeaker case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973348A (en) * | 2017-04-24 | 2017-07-21 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1487234A1 (en) * | 2002-03-15 | 2004-12-15 | Sharp Kabushiki Kaisha | Bass reflex type speaker device, mounting structure and mounting method for speaker device |
| CN1988730A (en) * | 2005-12-23 | 2007-06-27 | 厦门华侨电子股份有限公司 | External voice box of TV set |
| CN103037283A (en) * | 2012-11-29 | 2013-04-10 | 无锡杰夫电声有限公司 | Thin double-cone phase inversion type loudspeaker box |
-
2014
- 2014-07-25 CN CN201410359920.2A patent/CN104168525A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1487234A1 (en) * | 2002-03-15 | 2004-12-15 | Sharp Kabushiki Kaisha | Bass reflex type speaker device, mounting structure and mounting method for speaker device |
| CN1988730A (en) * | 2005-12-23 | 2007-06-27 | 厦门华侨电子股份有限公司 | External voice box of TV set |
| CN103037283A (en) * | 2012-11-29 | 2013-04-10 | 无锡杰夫电声有限公司 | Thin double-cone phase inversion type loudspeaker box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973348A (en) * | 2017-04-24 | 2017-07-21 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
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Application publication date: 20141126 |
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