CN104902407A - Horn type micro loudspeaker and terminal equipment - Google Patents
Horn type micro loudspeaker and terminal equipment Download PDFInfo
- Publication number
- CN104902407A CN104902407A CN201510290267.3A CN201510290267A CN104902407A CN 104902407 A CN104902407 A CN 104902407A CN 201510290267 A CN201510290267 A CN 201510290267A CN 104902407 A CN104902407 A CN 104902407A
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- China
- Prior art keywords
- horn
- terminal equipment
- microspeaker
- micro loudspeaker
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Abstract
The invention discloses a horn type micro loudspeaker, which is applied to terminal equipment. The horn type micro loudspeaker comprises a micro loudspeaker. The horn type micro loudspeaker further comprises a horn which is connected with the micro loudspeaker. An upper top surface and a lower bottom surface of the horn on a thickness direction of the terminal equipment are planes; the upper top surface is parallel with an upper shell surface of the terminal equipment while the lower bottom surface is parallel with a lower shell surface of the terminal equipment. On a direction vertical to the thickness direction of the terminal equipment and a length direction of the horn, the horn is extended from a horn port to a horn waiting port. The above technical proposal of the horn type micro loudspeaker combines the micro loudspeaker and the horn under the premise that the thickness of the terminal equipment is relative thin, thereby achieving goals of low resonance frequency F0 and large loudness.
Description
Technical field
The present invention relates to the design field of Microspeaker in terminal equipment, particularly relate to a kind of horn type Microspeaker and terminal equipment.
Background technology
Nowadays, the resonance frequency F0 of the Microspeaker (loudspeaker) in the terminal equipment such as mobile phone, flat board and loudness evaluate the important indicator of terminal equipment tonequality quality, and the performance requirement of designer to loud speaker is more and more higher: size is less, thinner, resonance frequency F0 is lower, and loudness is larger.
In the prior art, in large loudspeaker design, horn design usually can be adopted to improve loudness, and the design of horn is not by spatial limitation, can extend in multiple directions.But, for Microspeaker, owing to being subject to the restriction of terminal equipment thickness, these indexs of Microspeaker are conflicting, and namely when size diminishes thinning, its room for promotion in loudness is but very little, resonance frequency F0 is also difficult to past decline, and (loudness is inadequate, F0 is too high), cannot make that the resonance frequency F0 of Microspeaker is low, loudness is large again, this just requires adopt special design or should be used for comprehensively promoting the index required by Microspeaker.
Summary of the invention
In view of this, the invention provides a kind of horn type Microspeaker and terminal equipment, to reach the object that its resonance frequency F0 is low, loudness is large again.
For solving the problems of the technologies described above, the invention provides a kind of horn type Microspeaker, being applied to terminal equipment, comprising Microspeaker, also comprise, the horn be connected with described Microspeaker;
The upper end face of described horn on the thickness direction of described terminal equipment and bottom surface are plane; Described upper end face is parallel with the epivalve of described terminal equipment, and described bottom surface is parallel with the hypovalve of described terminal equipment;
Described horn, perpendicular on the thickness direction of described terminal equipment and the length direction of described horn, has extension by horn mouth to horn time mouthpiece.
Preferably, described extension is that one-sided extension or bilateral extend.
Preferably, described extension comprises:
Exponential type extends, hyperbolic-type extends or linear pattern extends.
Preferably, also comprise:
Be arranged at the throat taps in described horn.
Preferably, described throat taps is specially the device of described terminal equipment.
Present invention also offers a kind of terminal equipment, comprise Microspeaker and amplifier, described Microspeaker is the horn type Microspeaker described in above-mentioned any one.
Horn type Microspeaker provided by the invention and terminal equipment above, compare a Microspeaker simple in prior art, horn type Microspeaker provided by the present invention is except comprising Microspeaker, also comprise horn, effectively make use of the efficiency that horn can improve loud speaker, the characteristic of the directive property of control loudspeaker; Simultaneously, consider the restriction of terminal equipment thinner thickness, compared with the horn that the circle used with loud speaker large in prior art, two direction of principal axis stretch, difference is, horn in the present invention is plane horn, and namely its upper end face on the thickness direction of terminal equipment and bottom surface are plane; Wherein, the epivalve of upper end face and terminal equipment is almost parallel, and the hypovalve of bottom surface and terminal equipment is almost parallel; And, horn is perpendicular on the thickness direction of terminal equipment and the length direction of horn, wait mouthpiece by horn mouth to horn and have extension, like this, because Microspeaker is combined with horn, and the upper end face of plane and bottom surface are almost parallel with the upper and lower shell face of terminal equipment respectively, and locus adapts, and overcome the restriction of the thinner thickness of terminal equipment with this.To sum up, overcome terminal equipment thinner thickness restriction prerequisite under, Microspeaker is combined with horn, reaches the object that its resonance frequency F0 is low, loudness is large again.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The vertical view schematic diagram of a kind of horn type Microspeaker that Fig. 1 provides for inventive embodiments;
Fig. 2 is the front view schematic diagram of Fig. 1;
The vertical view schematic diagram of the another kind of horn type Microspeaker that Fig. 3 provides for embodiment;
The test comparison result figure about loudness that Fig. 4 provides for the embodiment of the present invention;
The test comparison result figure about percent distortion that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Core of the present invention is to provide a kind of horn type Microspeaker and terminal equipment, to reach the object that its resonance frequency F0 is low, loudness is large again.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
In prior art, the effect of horn: the efficiency improving loud speaker, the directive property of control loudspeaker, determines lower frequency limit.
The cut-off frequency of horn: the low-limit frequency that horn can be reset is cut-off frequency, cut-off frequency and horn length are inversely proportional to.With reference to following formula:
Fc＝c/4πLs*ln(s1/s0)
Fc-cut-off frequency in formula
C-THE VELOCITY OF SOUND IN AIR
Ls-horn length
S
1-horn open area
S
0open area waited by-horn.
With reference to figure 1, Fig. 2, wherein figure 1 illustrate the vertical view schematic diagram of a kind of horn type Microspeaker that the embodiment of the present invention provides, Fig. 2 is the front view schematic diagram of Fig. 1.
In the present invention, horn type Microspeaker is applied to terminal equipment, and it not only comprises Microspeaker 100,
Also comprise, the horn 102 be connected with Microspeaker 100;
The upper end face S of horn 101 on the thickness direction of terminal equipment
onwith bottom surface S
underbe plane; Upper end face S
onparallel with the epivalve of terminal equipment, bottom surface S
underparallel with the hypovalve of terminal equipment;
In the present invention, upper end face S
onwith bottom surface S
underbe plane, be specially: not doing on the thickness direction of upper end face terminal equipment and extend, is roughly plane, forms upper end face S with this
onwith bottom surface S
under.Can find out, for upper end face S
onwith bottom surface S
under, consider the restriction of technique levels of precision in actual fabrication process, the present invention is not defined as strict plane, as long as be roughly plane.
Horn 101, perpendicular on the thickness direction of terminal equipment and the length direction of described horn, has extension by horn mouth to horn time mouthpiece.
In the present invention, horn 101 is waited to the extension of mouth by horn mouth to horn, can extend for exponential type, also can extend for hyperbolic-type, can also extend etc. for linear pattern, not do considered critical herein;
For the extension mode of above-mentioned various extension, can be one-sided extension, also can be bilateral extend, wherein, single, double side be with the central point through horn mouth, the axis perpendicular to horn mouth place plane be with reference to.
In the present invention, terminal equipment can be mobile phone, also can be that flat board waits equipment, consider that the Thickness Ratio of terminal equipment is thinner, twin shaft future designs can not be realized as large horn, plane horn can only be made, namely any extension is not done in the thinnest one side (namely in thickness) of terminal equipment, a just plane, such as the planar thickness of plane horn is always 4mm, axial length L s=70mm.
With reference to figure 3, in the present invention, consider that the phasing principle of throat taps can optimize tonequality, horn type Microspeaker can also comprise: be arranged at the throat taps 300 in horn 101.
In the present invention, preferably, above-mentioned throat taps 300 is specifically as follows the device of terminal equipment, like this, by some components and parts of terminal equipment as throat taps 300, so not only saves space but also can play a role.
In the present invention, the inner space of end product also can be utilized as horn 101, improve LF-response with this.
To sum up, horn type Microspeaker provided by the invention above, compare a Microspeaker simple in prior art, horn type Microspeaker provided by the present invention is except comprising Microspeaker 100, also comprise horn 101, effectively make use of the efficiency that horn 101 can improve loud speaker, the characteristic of the directive property of control loudspeaker; Simultaneously, consider the restriction of terminal equipment thinner thickness, compared with the horn that the circle used with loud speaker large in prior art, two direction of principal axis stretch, difference is, horn 101 in the present invention is plane horn, i.e. its upper end face S on the thickness direction of terminal equipment
onwith bottom surface S
underbe plane; Wherein, upper end face S
onparallel with the epivalve of terminal equipment, bottom surface S
underparallel with the hypovalve of terminal equipment; Further, horn 101 extending in trumpet type perpendicular on the thickness direction of terminal equipment, like this, because Microspeaker 100 is combined with horn 101, and the upper end face S of plane
onwith bottom surface S
underparallel with the upper and lower shell face of terminal equipment respectively, locus adapts, overcomes the restriction of the thinner thickness of terminal equipment with this.To sum up, overcome terminal equipment thinner thickness restriction prerequisite under, Microspeaker 100 is combined with horn 101, reaches the object that its resonance frequency F0 is low, loudness is large again.
For the horn type Microspeaker disclosed in the invention described above embodiment, present invention also offers a kind of terminal equipment, this terminal equipment comprises Microspeaker and amplifier, and preferably, this Microspeaker is above-mentioned arbitrary horn type Microspeaker.
Wherein, the technique effect that the terminal equipment with above-mentioned arbitrary horn type Microspeaker provided by the invention has is consistent with the technique effect of above-mentioned horn type Microspeaker, repeats no more herein.
With reference to figure 4 and Fig. 5, respectively illustrate the test comparison result figure about loudness, percent distortion that the embodiment of the present invention provides, abscissa is frequency.Wherein, horn type Microspeaker parameter is as follows: Ls=100mm, S0=22.5mm
2, S1=330mm
2, horn 101 thickness 5.7mm, material thickness 0.9mm, based on this, calculate cut-off frequency F
c=750Hz, monomer size 18mm*13mm*2.3mm, back cavity 0.8cc.
In Fig. 4 and Fig. 5,
A-prior art micro-speaker assemblies;
B-horn type Microspeaker (not having throat taps) of the present invention;
C-horn type Microspeaker (having throat taps) of the present invention.
From Fig. 4, curve B can find out F
c=960Hz, the F0 of Microspeaker 100 reduces nearly 200HZ, and medium-high frequency improves about 10dB, reaches and not only reduces F0 but also reach the object improving loudness;
As can be seen from Figure 5, distortion 700Hz is slightly high, and overall distortion tendency changes little, can pass through material, and structural design is improved.
It is emphasized that the design of horn 101 and throat taps 300 is very large on frequency response impact here, comprise raw material, length, horn open area etc., we only provide conclusion here, and concrete research must technical staff be goed deep into specially.
Above horn type Microspeaker provided by the present invention and terminal equipment are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (6)
1. a horn type Microspeaker, is applied to terminal equipment, comprises Microspeaker, it is characterized in that,
Also comprise, the horn be connected with described Microspeaker;
The upper end face of described horn on the thickness direction of described terminal equipment and bottom surface are plane; Described upper end face is parallel with the epivalve of described terminal equipment, and described bottom surface is parallel with the hypovalve of described terminal equipment;
Described horn, perpendicular on the thickness direction of described terminal equipment and the length direction of described horn, has extension by horn mouth to horn time mouthpiece.
2. horn type Microspeaker as claimed in claim 1, is characterized in that, described extension is that one-sided extension or bilateral extend.
3. the horn type Microspeaker as described in claim 1 to 2 any one, is characterized in that, described extension comprises:
Exponential type extends, hyperbolic-type extends or linear pattern extends.
4. horn type Microspeaker as claimed in claim 1, is characterized in that, also comprise:
Be arranged at the throat taps in described horn.
5. horn type Microspeaker as claimed in claim 4, it is characterized in that, described throat taps is specially the device of described terminal equipment.
6. a terminal equipment, comprises Microspeaker and amplifier, it is characterized in that, described Microspeaker is the horn type Microspeaker described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290267.3A CN104902407A (en) | 2015-05-29 | 2015-05-29 | Horn type micro loudspeaker and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290267.3A CN104902407A (en) | 2015-05-29 | 2015-05-29 | Horn type micro loudspeaker and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104902407A true CN104902407A (en) | 2015-09-09 |
Family
ID=54034753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510290267.3A Pending CN104902407A (en) | 2015-05-29 | 2015-05-29 | Horn type micro loudspeaker and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104902407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686510A (en) * | 2017-03-10 | 2017-05-17 | 湖南大平安安全科技有限公司 | Straight-through type loudspeaker |
| WO2024016403A1 (en) * | 2022-07-19 | 2024-01-25 | 瑞声科技(新加坡)有限公司 | Speaker module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223047A (en) * | 1996-05-03 | 1999-07-14 | 艾利森公司 | Acoustic horn for use in cellular flip phones |
| US20050175207A1 (en) * | 2004-02-11 | 2005-08-11 | Alexander Eric J. | Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range |
| CN102811409A (en) * | 2011-06-03 | 2012-12-05 | 李世煌 | Hidden-type loudspeaker system |
| CN102868957A (en) * | 2011-07-06 | 2013-01-09 | 歌尔声学股份有限公司 | Ultra-thin speaker system |
| CN103269468A (en) * | 2013-06-06 | 2013-08-28 | 无锡杰夫电声有限公司 | Horn-type multipoint excitation speaker box |
| CN204652654U (en) * | 2015-05-29 | 2015-09-16 | 山东共达电声股份有限公司 | A kind of horn type Microspeaker and terminal equipment |
-
2015
- 2015-05-29 CN CN201510290267.3A patent/CN104902407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223047A (en) * | 1996-05-03 | 1999-07-14 | 艾利森公司 | Acoustic horn for use in cellular flip phones |
| US20050175207A1 (en) * | 2004-02-11 | 2005-08-11 | Alexander Eric J. | Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range |
| CN102811409A (en) * | 2011-06-03 | 2012-12-05 | 李世煌 | Hidden-type loudspeaker system |
| CN102868957A (en) * | 2011-07-06 | 2013-01-09 | 歌尔声学股份有限公司 | Ultra-thin speaker system |
| CN103269468A (en) * | 2013-06-06 | 2013-08-28 | 无锡杰夫电声有限公司 | Horn-type multipoint excitation speaker box |
| CN204652654U (en) * | 2015-05-29 | 2015-09-16 | 山东共达电声股份有限公司 | A kind of horn type Microspeaker and terminal equipment |
Non-Patent Citations (1)
| Title |
|---|
| 山本武夫: "《扬声器系统》", 31 January 2010 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686510A (en) * | 2017-03-10 | 2017-05-17 | 湖南大平安安全科技有限公司 | Straight-through type loudspeaker |
| WO2024016403A1 (en) * | 2022-07-19 | 2024-01-25 | 瑞声科技(新加坡)有限公司 | Speaker module |
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| PB01 | Publication | ||
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Application publication date: 20150909 |