CN201219304Y - Mid-bass sound effect processing equipment - Google Patents
Mid-bass sound effect processing equipment Download PDFInfo
- Publication number
- CN201219304Y CN201219304Y CNU2008200945576U CN200820094557U CN201219304Y CN 201219304 Y CN201219304 Y CN 201219304Y CN U2008200945576 U CNU2008200945576 U CN U2008200945576U CN 200820094557 U CN200820094557 U CN 200820094557U CN 201219304 Y CN201219304 Y CN 201219304Y
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- Prior art keywords
- sound
- loud speaker
- effect processing
- processing equipment
- sound chamber
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Abstract
The utility model provides a mean tone and low tone sound effect processing device, comprising a case for holding a loudspeaker, also the case is provided with a front sound chamber and two rear sound chambers, communicating through an inverter tube, the loudspeaker is arranged between the front sound chamber and the two rear sound chambers; sounf outlets communicating with the front sound chamber are also provided on the case. Different from the prior art, according to the utility model, the sound effect processing mode completely different from the prior art is designed in a unique thinking mode. Two rear sound chambers communicating through the inverter tube are arranged on the side and the rear of the loudspeaker, thereby changing sonic phase at the rear part of the loudspeaker, avoiding counteract in low frequency of the sound, enhancing low frequency sound effect, increasing volume of the rear sound chambers of the loudspeaker, reducing resonance frequency points of the sound chambers. The sound generated by the utility model is deep and vigorous in low tone, distinct in middle tone, bright and clear in high tone, the sound chambers have good replay effect of the low tone and the middle tone, causing the played sound quality to be particularly good.
Description
Technical field
The utility model belongs to loud speaker audio process field, relates in particular to bass sound-effect processing equipment in a kind of built-in loud speaker.
Background technology
At present, no matter be mobile phone, DPF or mobile digital TV, its pronunciation all is to rely on built-in loud speaker to realize.The sounding of loud speaker is to transform by electricity-Li-acoustic energy, is promoted air and is sounded by the vibrating diaphragm vibration.Can know by vibration mechanics, vibrating diaphragm when vibration takes place, can promote before the film and the air vibration behind the film to form sound wave, these two kinds of magnitudes of acoustic waves equate that phase place is opposite.During low frequency, the wavelength of sound wave is longer, and speaker size is less, and at this moment the sound wave that can walk around before vibrating diaphragm and the diaphragm of loudspeaker of the sound wave behind the vibrating diaphragm offsets, and the sound that loud speaker is sent is very little, and medium and low frequency sound disappears, thereby has influenced the loudspeaker sound effect.In order to improve the audio of this electronic product, taked a lot of corrective measures in the prior art, as adding the cavity of a sealing in the loud speaker back, can have certain effect the electronic product that this structure is big for size or spatial joint clearance is bigger.But the space that is limited to electronic products itself such as mobile phone, DPF or mobile digital TV, this airtight cavity does not obviously improve its low frequency audio, if increase the said goods space, can increase the size of electronic product undoubtedly, do not meet the needs of present electronic product development, therefore need be improved.
The utility model content
The purpose of this utility model is to provide a kind of middle bass sound-effect processing equipment, is intended to solve the boombox medium and low frequency sound effect difference sound problem of smaller of electronic products such as mobile phone, DPF, mobile digital TV.
The utility model is to realize like this, bass sound-effect processing equipment in a kind of, comprise one can ccontaining loud speaker housing, be provided with one in the described housing before sound chamber and sound chambeies, two backs, wherein sound chamber, two backs is interconnected by a phase-reversing tube, and loud speaker is between preceding sound chamber and sound chamber, two backs; On described housing, also offer the sender that can be communicated with preceding sound chamber.
Compare existing closed sound chamber technology, the utility model is designed and the diverse audio processing mode in existing sound chamber in the unique thinking mode.It is by being provided with two back sound chambeies that are communicated with by phase-reversing tube in loud speaker side and back, can change the phase place of diaphragm of loudspeaker back sound wave by this, avoided sound to offset in the low frequency formula, can strengthen the low frequency audio, reach the effect that increases sound chamber volume behind the loud speaker, reduced the resonant frequency point in sound chamber.The bass that the utility model sent is overcast simple and honest, and middle pitch is clear, and high pitch is beautiful thorough, and replaying bass effect during the sound chamber has well makes the music tonequality that plays out good especially.
Description of drawings
Fig. 1 is the utility model embodiment stereoscopic figure;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 A is the B-B cross section view of Fig. 1;
Fig. 3 B is the B-B sectional stereogram of Fig. 1;
Fig. 4 is the utility model embodiment three-dimensional exploded view.
In the diagram:
The 1-wire hole; The 2-sender; The 3-side;
Base plate behind the 4-; Face-piece before the 5-; The 6-loud speaker;
7-installs and encloses bone; The 8-locating flange; 9-loud speaker front;
Sound chamber before the 10-; 11-loud speaker back; The 12-acoustical cotton;
Sound chamber, 13-first back; The 14-supporting rib; Sound chamber, 15-second back;
16-loud speaker side; The 17-phase-reversing tube; The 18-hole.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
By formula
And
(in the formula: C
AbFor the back cavity equivalent sound suitable; V
bBe the back cavity volume; ρ is an atmospheric density; C is the aerial propagation velocity of sound; S
dBe loud speaker equivalence vibration area; C
AFor the total equivalent sound of audio devices suitable; C
MsFor the loud speaker equivalent sound suitable; F
sResonance frequency for audio devices; M
MsBe loud speaker equivalence oscillating mass) we can know, when other conditions constant, the back cavity volume V
bAfter the increase, the equivalent sound of back cavity is along C
AbIncrease C
AAt this moment the C in the formula (2)
AAlso along with increase, with C
ASubstitution formula (3) calculates, and the resonant frequency point that draws audio devices has reduced.Why general audio devices hangs down beat, mainly is little because of back cavity, and the sound that the while diaphragm of loudspeaker sends later is by the event of acoustic phase counteracting of back cavity shell radiation and loud speaker front.
Based on above-mentioned theory, the utility model proposes a kind of middle bass sound-effect processing equipment, it comprises that one contains the housing of cavity, loud speaker can place in the described housing cavity, in this described housing cavity, set up a preceding sound chamber and sound chamber, two backs separately, the surface of shell relative with preceding sound chamber offers the sender that can be communicated with preceding sound chamber, between sound chamber and the sound chamber, two backs, the sound that loud speaker sends can be transmitted to the external world through sender by preceding sound chamber before described loud speaker was positioned over.The utility model is bass audio in improving, and sound chamber, two backs is interconnected by a phase-reversing tube that is arranged at the housing inner chamber.Like this, can increase sound chamber, back equivalent volume, change the sound phase place behind the diaphragm of loudspeaker, so that the phenomenon that sound is offset can not take place, make audio devices that significant effect be arranged on the bass audio in reduction, thereby realized the utility model purpose.
The utility model embodiment also can utilize the Helmholtz resonator principle design to go out suitable phase-reversing tube length and area in concrete structural design, forms a Helmholtz resonator load.Such load has the ability that absorbs sound, and when resonance took place, its acoustical absorptivity was the strongest.By Helmholtz resonator load sound absorption, can increase sound chamber volume behind the loud speaker, reduce the resonant frequency point in sound chamber, phase-reversing tube can make the sound of back cavity take place anti-phase simultaneously, same with acoustic phase before the loud-speaker diaphragm, like this, not only can not offset loudspeaker sound, can make it on the contrary to be enhanced, so just, it is overcast simple and honest to build bass, and middle pitch is clear, the beautiful thorough effect of high pitch, make audio devices have well middle replaying bass effect, the music tonequality that plays out is good especially.
Accompanying drawing has been showed the structural design embodiment that the utility model is concrete.
As Fig. 1, Fig. 2, Fig. 3 A, Fig. 3 B and shown in Figure 4, among the utility model embodiment, described housing is made up of preceding face-piece 5 and back base plate 4, and wherein preceding face-piece 5 is a rectangle or square box-like structure, and back base plate 4 forms a cavity after being tightly connected with it; In the cavity that face-piece 5 was offered before described loud speaker 6 was located at, the diaphragm of loudspeaker positive 9 is corresponding with preceding face-piece 5 fronts, is provided with certain spacing between the two, sound chamber 10 before its space constitutes.Shell 5 fronts evenly offer a plurality of senders 2 in front, and sender 2 shapes can arbitrarily design, and its area is 5mm
2～40mm
2, being communicated with preceding sound chamber 10, the sound that loud speaker 6 sends can be delivered to the external world by sender 2 after circling round in preceding sound chamber 10.
As Fig. 2, Fig. 3 A, Fig. 3 B and shown in Figure 4, in described procapsid 5 cavitys, between loud speaker 6 sides and preceding face-piece 5 sides 3 inwalls, be respectively equipped with sound chamber, first back 13 and sound chamber, second back 15, it is divided into loud speaker 6 sides, isolate by the supporting rib 14 that preceding face-piece 5 inner chambers are set, loud speaker 6 is positioned at sound chamber, first back 13.On described supporting rib 14, offer a hole 18, phase-reversing tube 17 docks with these 18 one or both ends, hole, and described phase-reversing tube 17 intracavity section shapes are identical with hole 18, and promptly the area of section in described hole 18 equates with phase-reversing tube 17 intracavity section areas.During butt joint, phase-reversing tube 17 end faces should be fitted fully with described hole 18 end faces, can adopt bonding form to interconnect, or adopt other forms to connect, and should guarantee its sealing during connection.By this phase-reversing tube 17, sound chamber, described first back 13 and sound chamber, second back 15 can be communicated with.Described hole 18 and phase-reversing tube 17 shapes can be made as circle, square or oval, described phase-reversing tube 17 can extend in 13 li in sound chamber, first back, also can extend in 15 the insides, sound chamber, second back, or extend in sound chamber, first back 13 and 15 li in chamber of sound (two ends that are described hole 18 are all to being connected to phase-reversing tube 17), second back simultaneously.Described hole 18 and phase-reversing tube 17 are far away as far as possible with described loud speaker 6 distances, can form the two back of paraphase audio cavity structure like this.
Because the length and the area of described phase-reversing tube 17 are adaptive, can make the sound that sends behind described loud speaker 6 films anti-phase, reach with vibrating diaphragm before the identical purpose of sound phase place, described phase-reversing tube 17 is communicated with the sound chamber, described first back 13 and second back cavity 15 simultaneously, can make phase-reversing tube 17 and sound chamber, second back 15 form Helmholtz resonator, make equivalent back cavity volume much larger than described first back sound chamber 13 volumes and sound chamber, second back 15 volume sums, audio devices low-frequency resonance frequency is descended, can be near or below the intrinsic low-frequency resonant frequency of described loud speaker 6 generally speaking.This structure has well solved the problems that the electronic product volume is little, audio is bad such as mobile phone, Digital Television.
For saving structure space, base plate 4 can adopt pcb board to replace behind the utility model embodiment, and each components and parts that is connected with loud speaker 6 can be installed on this pcb board, and the loud speaker lead-in wire that is used for the audio frequency input also can change spring-piece type into, direct and pcb board audio frequency output is joined, and is very convenient.
Simultaneously, among the utility model embodiment, also can assist a ruler in governing a country in other supplementary structure, to have excellent sealing performance between further assurance loud speaker 6 and the preceding face-piece 5, shown in Fig. 2, Fig. 3 A, Fig. 3 B, the utility model is face-piece 5 fronts before described, be provided with a location flange 8, it highly is about 0.5mm-2mm, and on loud speaker 6 fronts periphery and the described locating flange 8 fit in the plane, and itself and back are isolated.Shell 5 sides in front, also be provided with to install and enclose bone 7, this installation is enclosed bone 7 and highly is about 3mm-5mm, be located at side within the described preceding face-piece 5, and with preceding face-piece 5 seamless links, the shape enclose bone 7 is installed decides with loud speaker 6 shapes, fully fitted in itself and loud speaker 6 sides, can be coated on loud speaker 6 sides fully, to guarantee its sealing.Like this, sound chamber 10 before preceding face-piece 5 inwalls of described loud speaker 6 positive 9 and described locating flange 8 inwalls, described sender 2 positions form; Supporting rib 14, the loud speaker side 16 of being enclosed bone 7 lateral walls and preceding face-piece 5 by side 3 inwalls, preceding face-piece 5 inwalls, back base plate 4 inwalls, installation just constitute sound chamber, first back; Sound chamber, second back 15 then is made of preceding face-piece 5 inwalls, side 3 inwalls, back base plate 4 inwalls and preceding face-piece 5 supporting ribs 14.Between described loud speaker 6 fronts and the locating flange 8, between loud speaker 6 back 11 and the back base plate 4, loud speaker 6 sides and installation enclose between the bone 7, can adopt acoustical cotton 12 sealings, with further assurance loud speaker 6, locating flange 8 with the seal that encloses between the bone 7 is installed, avoid loud speaker 6 front and back sound to offset, acoustical cotton 12 areas that wherein are arranged at loud speaker 6 back are 1/2nd to 2/3rds of described loud speaker 6 back areas, can tightly join with back base plate 4 inwalls, be used for fixing described loud speaker 6.Simultaneously, acoustical cotton 12 foam that adopts described in the utility model embodiment, it has excellent sound absorbing power and diffusivity, can well prevent loud speaker 6 when high-power sounding and described housing resonate, avoid the generation of harmonic wave, make the fine true effect that restores music file of whole device energy, and, the price of foam is very cheap, can cut down finished cost.
The utility model also has been provided with wire hole 1 on the base plate 4 of described back, so that the drawing of lead, described wire hole 1 place adopts to be played glue and seal.
The utility model can design one or two audio devices according to the actual needs of electronic products such as mobile phone, Digital Television in realization.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1, a kind of middle bass sound-effect processing equipment, comprise one can ccontaining loud speaker housing, sound chamber and sound chamber, two backs before being provided with one in the described housing is characterized in that: sound chamber, described two back is interconnected by a phase-reversing tube, and loud speaker is between preceding sound chamber and sound chamber, two backs; On described housing, offer the sender that can be communicated with preceding sound chamber.
2, as claimed in claim 1 a kind of in the bass sound-effect processing equipment, it is characterized in that described housing comprises the back base plate and contain the preceding face-piece of cavity, described back base plate is tightly connected with preceding face-piece, described loud speaker is located in the preceding face-piece cavity.
3, a kind of middle bass sound-effect processing equipment as claimed in claim 2 is characterized in that, described back base plate is a pcb board.
4, as claim 1 or 2 or 3 described a kind of middle bass sound-effect processing equipments, it is characterized in that described sender area is 5mm
2～40mm
2
5, a kind of middle bass sound-effect processing equipment as claimed in claim 2, it is characterized in that, sound chamber, described two back isolates by a supporting rib of shell setting in front, offers the hole that phase-reversing tube can be installed on the described supporting rib, and this hole area equates with phase-reversing tube inner ring area.
6, as claim 2 or 5 described a kind of middle bass sound-effect processing equipments, it is characterized in that, described loud speaker front is by the locating flange location of face-piece cavity before being arranged at, and the side is provided with the installation that can coat the loud speaker side and encloses bone, and the acoustical cotton vibration isolation is adopted in the back.
7, as claimed in claim 6 a kind of in the bass sound-effect processing equipment, it is characterized in that, between described loud speaker front and the locating flange, loud speaker side and installation enclose between the bone, is provided with sealable acoustical cotton.
8, a kind of middle bass sound-effect processing equipment as claimed in claim 6 is characterized in that it is 3～5mm that the bone height is enclosed in described installation.
9, a kind of middle bass sound-effect processing equipment as claimed in claim 6 is characterized in that the set acoustical cotton area in described loud speaker back is 1/2nd to 2/3rds of a described loud speaker back area.
10, a kind of middle bass sound-effect processing equipment as claimed in claim 6 is characterized in that described locating flange height is 0.5～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200945576U CN201219304Y (en) | 2008-06-04 | 2008-06-04 | Mid-bass sound effect processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200945576U CN201219304Y (en) | 2008-06-04 | 2008-06-04 | Mid-bass sound effect processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219304Y true CN201219304Y (en) | 2009-04-08 |
Family
ID=40542135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200945576U Expired - Fee Related CN201219304Y (en) | 2008-06-04 | 2008-06-04 | Mid-bass sound effect processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219304Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695110A (en) * | 2011-03-22 | 2012-09-26 | 青岛海信电器股份有限公司 | Bass sound box, and flat panel TV with build-in bass sound box |
| CN102857849A (en) * | 2011-06-30 | 2013-01-02 | 宏碁股份有限公司 | Miniature speaker and portable electronic device |
| CN103118320A (en) * | 2013-01-18 | 2013-05-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| CN103179486A (en) * | 2011-12-20 | 2013-06-26 | 英华达（上海）科技有限公司 | Mobile electronic device with closed sound chamber |
| CN103458326A (en) * | 2013-08-27 | 2013-12-18 | 上海创功通讯技术有限公司 | Horn seal structure and processing method thereof |
| CN104320601A (en) * | 2014-10-10 | 2015-01-28 | 青岛海信电器股份有限公司 | Flat television |
| WO2015070573A1 (en) * | 2013-11-18 | 2015-05-21 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN104756515A (en) * | 2012-12-28 | 2015-07-01 | 京瓷株式会社 | Sound emitter and electronic apparatus employing same |
| CN105578363A (en) * | 2016-03-16 | 2016-05-11 | 惠州Tcl移动通信有限公司 | Electronic equipment and loudspeaker structure |
| CN107852551A (en) * | 2015-08-04 | 2018-03-27 | 奥音科技（北京）有限公司 | Integral speakers device with the sound chamber comprising sound-absorbing material |
| CN110166895A (en) * | 2018-02-13 | 2019-08-23 | 许丽莲 | The ultralow audio frequency sound wave generation device of suction strainer noise |
| TWI786037B (en) * | 2016-11-23 | 2022-12-11 | 中國大陸商鎮江貝斯特新材料有限公司 | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material |
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2008
- 2008-06-04 CN CNU2008200945576U patent/CN201219304Y/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102695110A (en) * | 2011-03-22 | 2012-09-26 | 青岛海信电器股份有限公司 | Bass sound box, and flat panel TV with build-in bass sound box |
| CN102857849A (en) * | 2011-06-30 | 2013-01-02 | 宏碁股份有限公司 | Miniature speaker and portable electronic device |
| CN103179486A (en) * | 2011-12-20 | 2013-06-26 | 英华达（上海）科技有限公司 | Mobile electronic device with closed sound chamber |
| CN103179486B (en) * | 2011-12-20 | 2016-10-12 | 英华达（上海）科技有限公司 | The electronic apparatus in tool closed sound chamber |
| CN104756515A (en) * | 2012-12-28 | 2015-07-01 | 京瓷株式会社 | Sound emitter and electronic apparatus employing same |
| WO2014110953A1 (en) * | 2013-01-18 | 2014-07-24 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| CN103118320A (en) * | 2013-01-18 | 2013-05-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| KR20150105991A (en) * | 2013-01-18 | 2015-09-18 | 고어텍 인크 | Ultrathin loudspeaker module |
| CN103118320B (en) * | 2013-01-18 | 2015-11-11 | 歌尔声学股份有限公司 | A kind of ultrathin loudspeaker module |
| US9525933B2 (en) | 2013-01-18 | 2016-12-20 | Goertek Inc. | Ultrathin speaker module |
| KR101691362B1 (en) * | 2013-01-18 | 2016-12-30 | 고어텍 인크 | Ultrathin loudspeaker module |
| CN103458326A (en) * | 2013-08-27 | 2013-12-18 | 上海创功通讯技术有限公司 | Horn seal structure and processing method thereof |
| US9756416B2 (en) | 2013-11-18 | 2017-09-05 | Goertek Inc. | Loudspeaker module |
| WO2015070573A1 (en) * | 2013-11-18 | 2015-05-21 | 歌尔声学股份有限公司 | Loudspeaker module |
| KR101780911B1 (en) | 2013-11-18 | 2017-09-21 | 고어텍 인크 | Loudspeaker module |
| CN104320601A (en) * | 2014-10-10 | 2015-01-28 | 青岛海信电器股份有限公司 | Flat television |
| US9706279B2 (en) | 2014-10-10 | 2017-07-11 | Hisense Electric Co., Ltd. | Electronic device |
| CN104320601B (en) * | 2014-10-10 | 2017-09-29 | 青岛海信电器股份有限公司 | A kind of flat panel TV |
| CN107852551A (en) * | 2015-08-04 | 2018-03-27 | 奥音科技（北京）有限公司 | Integral speakers device with the sound chamber comprising sound-absorbing material |
| CN107852551B (en) * | 2015-08-04 | 2020-02-21 | 镇江贝斯特新材料有限公司 | Case for mobile device |
| CN105578363A (en) * | 2016-03-16 | 2016-05-11 | 惠州Tcl移动通信有限公司 | Electronic equipment and loudspeaker structure |
| CN105578363B (en) * | 2016-03-16 | 2019-09-06 | 惠州Tcl移动通信有限公司 | Electronic equipment and loadspeaker structure |
| TWI786037B (en) * | 2016-11-23 | 2022-12-11 | 中國大陸商鎮江貝斯特新材料有限公司 | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material |
| CN110166895A (en) * | 2018-02-13 | 2019-08-23 | 许丽莲 | The ultralow audio frequency sound wave generation device of suction strainer noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20160604 |