CN107948887A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN107948887A CN107948887A CN201711183026.4A CN201711183026A CN107948887A CN 107948887 A CN107948887 A CN 107948887A CN 201711183026 A CN201711183026 A CN 201711183026A CN 107948887 A CN107948887 A CN 107948887A
- Authority
- CN
- China
- Prior art keywords
- elastic wall
- loudspeaker
- loudspeaker enclosure
- monomer
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000178 monomer Substances 0.000 claims abstract description 34
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention provides a kind of loudspeaker enclosure, it includes housing and the loudspeaker monomer being contained in the housing, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, housing includes the inner wall for surrounding receiving space, the receiving space is divided into ante-chamber and back cavity by vibrating diaphragm, it is provided with ante-chamber from the inner wall to away from the concave container in loudspeaker monomer direction, be sticked flexible wall in the container, the elastic wall is used to absorb the vibration under particular resonant frequency, and the Young's modulus or intensity of the elastic wall are less than the Young's modulus or intensity of the housing.Compared with correlation technique, loudspeaker distortions of the invention are small and acoustical behavior is good.
Description
【Technical field】
The present invention relates to acoustic-electric field, more particularly to a kind of loudspeaker enclosure for applying to portable electronic product.
【Background technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile equipment
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.At present, the function of mobile phone is extremely various, one of them is just
It is the music function of high-quality, therefore, the loudspeaker enclosure for playing sound is widely applied Intelligent mobile equipment till now
Among.
The loudspeaker enclosure of correlation technique includes housing, the sounding monomer being contained in the housing, through the shell
The leak holes that body is set and the cover board for being covered on the leak holes, the sounding monomer include the vibrating diaphragm for vibration sounding, institute
State vibrating diaphragm to be arranged at intervals to form the preceding operatic tunes with the housing, the leak holes are set with the vibrating diaphragm face, the loudspeaker enclosure
Further include and lead part by what the preceding operatic tunes was in communication with the outside, the preceding operatic tunes collectively forms the loudspeaker with the part of leading
The ante-chamber of case.
However, in the loudspeaker enclosure of correlation technique, the inner wall of the ante-chamber is hard plastic or metal material shape
Into rigid walls, the damping of rigid walls is small and Oscillation Amplitude is small, and emittance is limited, can not effectively pass the cavity energy of ante-chamber
Broadcast is gone, thus cannot absorb the energy of assigned frequency.Therefore, the structure easily cause the ante-chamber rigid walls produce resonate into
And cause the sounding distortion of the loudspeaker enclosure, influence the acoustical behavior of the loudspeaker enclosure.
Therefore, a kind of new loudspeaker enclosure must be provided by, which having in fact, solves above-mentioned technical problem.
【The content of the invention】
The good loudspeaker enclosure of small and acoustical behavior it is an object of the invention to provide a kind of distortion.
In order to achieve the above object, the present invention provides a kind of loudspeaker enclosure, it is included with receiving space housing and receipts
The loudspeaker monomer being dissolved in the housing, the loudspeaker monomer include the vibrating diaphragm for vibration sounding, and the housing includes
The inner wall of the receiving space is surrounded, the receiving space is divided into ante-chamber and back cavity by the vibrating diaphragm, and the ante-chamber is provided with
From the inner wall to the flexible wall that away from loudspeaker monomer direction concave container, is sticked in the container, the bullet
Property wall be used to absorb vibration under particular resonant frequency, the Young's modulus or intensity of the elastic wall are less than the Young of the housing
Modulus or intensity.
Preferably, the housing includes lower cover, connects the upper cover for surrounding receiving space with the lower cover lid, and the container is set
Put on the cover.
Preferably, the monomer fixing groove for fixing the loudspeaker monomer, the loudspeaker are provided with the upper lid
Monomer is fixed in the monomer fixing groove and the ante-chamber, the container is formed between the bottom of the monomer fixing groove
It is arranged in the monomer fixing groove.
Preferably, the container includes spaced first container and the second container, and the elastic wall includes
The first elastic wall for being arranged in the first container and it is arranged on the second elastic wall in the second container.
Preferably, first elastic wall is respectively used to absorb the vibration of different resonant frequencies from second elastic wall.
Preferably, the elastic wall is formed solid with the housing by double-shot moulding or hot pressing or stickup or ultrasonic bonding
Fixed connection.
Preferably, the elastic wall absorbs the vibration that resonant frequency is 500~15000Hz.
Preferably, the elastic wall absorbs the vibration that resonant frequency is 3000~9000Hz.
Preferably, the elastic wall is made of TPU or MCP or silica gel.
Compared with correlation technique, loudspeaker enclosure of the invention will set Young's modulus or intensity to be less than the shell in the preceding operatic tunes
The Young's modulus of body or the elastic wall of intensity, for absorbing the resonant frequency energy of specific frequency, so as to weaken the loudspeaker
The resonance effect of case and its distortion is reduced, and then improve the acoustical behavior of the loudspeaker enclosure.
【Brief description of the drawings】
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the dimensional structure diagram of loudspeaker enclosure of the present invention
Fig. 2 is the decomposition texture schematic diagram of loudspeaker enclosure of the present invention；
Fig. 3 is the cut-away view of the line A-A along Fig. 1；
Fig. 4 be loudspeaker enclosure of the present invention elastic wall and correlation technique rigid walls frequency response curve figure；
Fig. 5 be loudspeaker enclosure of the present invention elastic wall and correlation technique rigid walls total harmonic distortion curve map.
【Embodiment】
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Please refer to Fig. 1-3, wherein, Fig. 1 is the dimensional structure diagram of loudspeaker enclosure of the present invention；Fig. 2 is the present invention
The decomposition texture schematic diagram of loudspeaker enclosure；Fig. 3 is the cut-away view of the line A-A along Fig. 1.The present invention provides a kind of loudspeaker enclosure
100, including the housing with receiving space 10, the sounding monomer 3 and elastic wall 5 that are housed in receiving space 10.
Housing includes lower cover 1, surrounds the upper cover 2 of receiving space jointly with lower cover 1.Sounding monomer 3 is fixed on receiving space
It is interior.Housing includes the inner wall for surrounding receiving space.Sounding monomer 3 includes the vibrating diaphragm 31 for vibration sounding, and vibrating diaphragm 31 will house
Space 10 is divided into ante-chamber 101 and back cavity 102.Specifically in the present embodiment, it is provided with upper cover 2 for fixing loudspeaker monomer
Monomer fixing groove 21, loudspeaker monomer 3 is fixed in the monomer fixing groove 21, and the vibrating diaphragm and monomer solid of loudspeaker monomer 3
The bottom relative spacing for determining groove 21 sets to form ante-chamber 101, and back cavity 102 is formed between loudspeaker monomer 3 and lower cover 1.
Wherein, it is provided with upper cover 2 and goes out acoustic aperture with extraneous for connecting the ante-chamber 101, ante-chamber 101 is used for loudspeaker
Case 100 is spoken, and back cavity 102 is used for the frequency acoustic performance for improving loudspeaker enclosure 100.
Elastic wall 5 is located in ante-chamber 101, and is sticked on the inner wall of housing, specifically in the present embodiment, on protecgulum 2
It is provided with from inner wall to away from the concave container 22 for being used to fix elastic wall 5 in 3 direction of loudspeaker monomer, elastic wall 5 and sets
In the container 22, for absorbing the energy of particular resonant frequency.The Young's modulus or intensity of elastic wall 5 are less than (more excellent to be
Less than upper cover 2) Young's modulus or intensity.Rigid walls in correlation technique are replaced by the elastic wall 5 in the present invention, and it is elastic
Wall 5 is attached in resonant frequency when the resonant frequency of elastic wall 5 is adjusted to a certain frequency by design there are a resonant frequency
Closely, elastic wall 5 can produce stronger vibration, can be by the resonance frequency of the elastic wall 5 in ante-chamber 101 in 100 sounding of loudspeaker enclosure
Energy near rate is passed to outside ante-chamber 101, so as to achieve the purpose that to absorb assigned frequency energy nearby；In addition, pass through elastic wall 5
Substituting rigid walls can pass to medium density in ante-chamber 101 outside ante-chamber 101, and then reduce the resonance of loudspeaker enclosure 100
Phenomenon and improvement distortion.
It is designed especially by the material of elastic wall 5, area, shape and thickness to realize above-mentioned purpose.This implementation
In mode, elastic wall 5 is made using the relatively low material of Young's modulus or intensity, at least below the Young's modulus or intensity of upper cover 2,
For example it is made using by TPU or MCP or silica gel.Fixed company is formed by double-shot moulding or hot pressing or stickup or ultrasonic bonding again
Connect, form the part-structure of ante-chamber 101, absorb the energy near 101 resonance peak of ante-chamber of loudspeaker enclosure 100, it is humorous to reach reduction
Shake peak, improve distortion, improve loudspeaker enclosure 100 acoustical behavior purpose.
Referring to Fig. 4, for loudspeaker enclosure of the present invention elastic wall and correlation technique rigid walls frequency response curve figure.By scheming
As it can be seen that in the frequency response curve of the elastic wall 5 of loudspeaker enclosure of the present invention 100 in 4, resonance peak substantially reduces, you can it is existing to reduce resonance
As.
Referring to Fig. 5, for loudspeaker enclosure of the present invention elastic wall and correlation technique rigid walls total harmonic distortion curve
Figure.As seen from Figure 5, in the total harmonic distortion curve of the elastic wall 5 of loudspeaker enclosure 100 of the present invention, distortion spike substantially reduces, i.e.,
Distortion can be improved.
In the loudspeaker enclosure 100 of the present invention, the resonant frequency of elastic wall 5 is 500~15000Hz：
When the resonant frequency of elastic wall 5 is 500~1500Hz, the low-frequency resonant frequency f0 that can reduce loudspeaker enclosure 100 is attached
3 distortions near 2 distortions, and f0/3 near near distortion, corresponding f0/2 etc.；
When the resonant frequency of elastic wall 5 is 1500~3000Hz, the intermediate frequency near the 2000Hz of loudspeaker enclosure 100 can be reduced
3 distortions near distortion, corresponding 1000Hz 2 distortions, and 667Hz nearby etc.；
When the resonant frequency of elastic wall 5 is 3000~9000Hz, it can reduce near the high-frequency resonant peak Fh of loudspeaker enclosure 100
Distortion, corresponding Fh/2 3 distortions near 2 distortions, and Fh/3 etc. nearby；
When the resonant frequency of elastic wall 5 is 9000~15000Hz, it can reduce near the high frequency 12000Hz of loudspeaker enclosure 100
Distortion, corresponding 6000Hz 3 distortions near 2 distortions, and 4000Hz etc. nearby.
Referring to Fig. 4, the acoustical behavior test data frequency response curve figure of loudspeaker enclosure of the present invention.With reference to implementation data and effect
For fruit, in present embodiment, more preferably, the resonant frequency of elastic wall 5 is 3000~9000Hz, at this time loudspeaker enclosure 100
It is more preferable to reduce distortion effect.
Specifically in the present embodiment, container 22 shares two, including spaced first container 221 and second
Container 222.Corresponding, elastic wall 5 includes the first elastic wall 51 for being arranged in the first container 221 and is arranged on the second receipts
Second elastic wall 52 in tank 222.
Specifically, the first elastic wall 51 and the second elastic wall 52 and upper cover 2 by double-shot moulding or hot pressing or stickup or
Ultrasonic bonding forms a fixed connection.Certainly, the two fixed form is not limited to this.Wherein the first elastic wall 51 and the second elasticity
Wall 52 is respectively used to absorb the energy of different resonant frequencies, can specifically be carried out by material, area, shape and thickness different
Design to realize above-mentioned purpose
It should be noted that the setting of elastic wall 5 is to absorb the particular resonant frequency energy of ante-chamber 101, therefore, bullet
Property wall 5 is not limited to the structure setting of the first elastic wall 51 and the second elastic wall 52, and position is also not necessarily limited to aforesaid way.
Compared with correlation technique, loudspeaker enclosure of the invention will set Young's modulus or intensity to be less than housing in the preceding operatic tunes
The elastic wall of Young's modulus or intensity, for absorbing the resonant frequency energy of specific frequency, so as to weaken the resonance of loudspeaker enclosure
Effect and its distortion is reduced, and then improve the acoustical behavior of loudspeaker enclosure.
The above is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art,
Without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection scope of the present invention.
Claims (9)
1. a kind of loudspeaker enclosure, it is included with receiving space housing and the loudspeaker monomer being contained in the housing, described
Loudspeaker monomer includes the vibrating diaphragm for vibration sounding, and the housing includes the inner wall for surrounding the receiving space, the vibrating diaphragm
The receiving space is divided into ante-chamber and back cavity, it is characterised in that be provided with the ante-chamber from the inner wall to remote
The concave container in loudspeaker monomer direction, be sticked in the container flexible wall, and the elastic wall is used to absorb specific humorous
Vibration under vibration frequency, the Young's modulus or intensity of the elastic wall are less than the Young's modulus or intensity of the housing.
2. loudspeaker enclosure according to claim 1, it is characterised in that the housing includes lower cover, connect with the lower cover lid
The upper cover of receiving space is surrounded, the container is set on the cover.
3. loudspeaker enclosure according to claim 2, it is characterised in that be provided with the upper lid for raising one's voice described in fixation
The monomer fixing groove of device monomer, the loudspeaker monomer be fixed in the monomer fixing groove and with the bottom of the monomer fixing groove
The ante-chamber is formed between portion, the container is arranged in the monomer fixing groove.
4. loudspeaker enclosure according to claim 2, it is characterised in that the container includes spaced first and houses
Groove and the second container, the elastic wall include the first elastic wall being arranged in the first container and are arranged on the second container
Interior second elastic wall.
5. loudspeaker enclosure according to claim 4, it is characterised in that first elastic wall and second elastic wall point
The vibration of different resonant frequencies Yong Yu not absorbed.
6. loudspeaker enclosure according to claim 1, it is characterised in that the elastic wall passes through double-shot moulding with the housing
Or hot pressing or stickup or ultrasonic bonding form a fixed connection.
7. loudspeaker enclosure according to claim 1, it is characterised in that the elastic wall absorb resonant frequency for 500~
The vibration of 15000Hz.
8. loudspeaker enclosure according to claim 7, it is characterised in that the elastic wall absorb resonant frequency for 3000~
The vibration of 9000Hz.
9. loudspeaker enclosure according to claim 1, it is characterised in that the elastic wall is made of TPU or MCP or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183026.4A CN107948887A (en) | 2017-11-23 | 2017-11-23 | Loudspeaker enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183026.4A CN107948887A (en) | 2017-11-23 | 2017-11-23 | Loudspeaker enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107948887A true CN107948887A (en) | 2018-04-20 |
Family
ID=61930044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183026.4A Pending CN107948887A (en) | 2017-11-23 | 2017-11-23 | Loudspeaker enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107948887A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203788443U (en) * | 2014-01-10 | 2014-08-20 | 瑞声精密电子沭阳有限公司 | Flat sounding device, and mobile terminal adopting same |
| CN106921310A (en) * | 2017-05-02 | 2017-07-04 | 西安电子科技大学 | A kind of electric field energy collection device |
| CN107333216A (en) * | 2017-07-04 | 2017-11-07 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107343247A (en) * | 2017-07-04 | 2017-11-10 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107360517A (en) * | 2017-07-04 | 2017-11-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
-
2017
- 2017-11-23 CN CN201711183026.4A patent/CN107948887A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203788443U (en) * | 2014-01-10 | 2014-08-20 | 瑞声精密电子沭阳有限公司 | Flat sounding device, and mobile terminal adopting same |
| CN106921310A (en) * | 2017-05-02 | 2017-07-04 | 西安电子科技大学 | A kind of electric field energy collection device |
| CN107333216A (en) * | 2017-07-04 | 2017-11-07 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107343247A (en) * | 2017-07-04 | 2017-11-10 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107360517A (en) * | 2017-07-04 | 2017-11-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |