CN209845299U - Damping noise-proof micro loudspeaker - Google Patents
Damping noise-proof micro loudspeaker Download PDFInfo
- Publication number
- CN209845299U CN209845299U CN201920981408.XU CN201920981408U CN209845299U CN 209845299 U CN209845299 U CN 209845299U CN 201920981408 U CN201920981408 U CN 201920981408U CN 209845299 U CN209845299 U CN 209845299U
- Authority
- CN
- China
- Prior art keywords
- fixing part
- sound film
- damping
- cantilever
- noise
- 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.)
- Active
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to the technical field of loudspeakers, in particular to a damping and noise-proof micro loudspeaker, which comprises a sound film and a centering support sheet; the centering support piece comprises a first fixing part and a second fixing part, the first fixing part is connected with the outer frame of the sound film, the second fixing part is connected with the inner frame of the sound film, and the first fixing part and the second fixing part are connected through a cantilever; the end face, facing the sound film, of the cantilever is provided with a sinking portion, and a damping glue layer is arranged between the sinking portion and the sound film. The utility model provides a damping noise-proof micro loudspeaker has increased the distance between cantilever and the sound membrane of centering support piece, has the effect of dodging the sound membrane, avoiding collision, increasing the buffering, reducing the noise, has guaranteed vibration system's stability, has improved product quality.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to a miniature speaker of noise is prevented in shock attenuation.
Background
At present, the damping and noise-proof micro loudspeaker and the receiver used by the mobile terminal are mostly moving coil type loudspeakers. The moving-coil loudspeaker comprises a magnetic circuit system, a vibration system and a basin frame for accommodating and fixing the magnetic circuit system and the vibration system. The vibration system comprises a vibration diaphragm, a ball top, a centering support sheet and a voice coil, wherein the centering support sheet is used for connecting the vibration diaphragm and the voice coil into a whole, and the voice coil can only move vertically, so that the swinging of the vibration system is inhibited, a more powerful drive loudspeaker is ensured, the amplitude is increased, and the sound effect is improved; by separating the diaphragm from the voice coil, the high temperature generated by the voice coil is transmitted to the diaphragm, and the centering support can influence the performance of the whole damping noise-proof micro-speaker. As the terminal has higher and higher requirements on the amplitude of the damping and noise-proof micro-speaker, the centering disk cantilever and the sound film corrugated ring inevitably collide to generate noise under large-amplitude vibration, thereby affecting the performance of the speaker.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the technical problem to be solved in the utility model is to provide a damping and noise-proof micro speaker capable of avoiding noise generation.
In order to solve the technical problem, the utility model discloses a technical scheme be: a shock-absorbing noise-proof micro-speaker comprises a sound film and a centering support sheet;
the centering support piece comprises a first fixing part and a second fixing part, the first fixing part is connected with the outer frame of the sound film, the second fixing part is connected with the inner frame of the sound film, and the first fixing part and the second fixing part are connected through a cantilever;
the end face, facing the sound film, of the cantilever is provided with a sinking portion, and a damping glue layer is arranged between the sinking portion and the sound film.
In an optional embodiment, the damping glue layer is made of silica gel.
In an alternative embodiment, the centering buttresses are flexible conductive plates.
In an alternative embodiment, the centering branch sheet comprises two or more polymer material layers stacked in sequence.
In an alternative embodiment, two adjacent high polymer material layers are bonded by glue.
In an optional embodiment, the material of the polymer material layer is one of PI, PU, PEI, PEEK, PPS, PEN, TPR, or TPE.
The beneficial effects of the utility model reside in that: the utility model provides a miniature speaker of shock attenuation noise proof, including sound membrane and centering piece, when the speaker during operation, the alternating audio current passes through the voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil produces the magnetic field that changes along with the audio current and takes place to attract or repel each other with the magnetic field of the magnetic circuit of miniature electroacoustic device, will lead to the voice coil loudspeaker voice coil to produce mechanical vibration and drive the vibrating diaphragm and the centering piece up-and-down motion of miniature electroacoustic device, the root of cantilever is very easily collided with vibrating diaphragm ring portion this moment, in order to avoid centering piece cantilever and sound membrane ring to collide, set up a portion of sinking on the cantilever that centering piece is used for connecting first fixed part and second fixed part, the length of portion of sinking accounts for the specific value range of cantilever total length is 0.3 ~ 1, then set up the damping glue layer on the portion of sinking, design can increase the distance between the cantilever of centering piece and the sound membrane like this, play and dodge sound membrane, The effects of avoiding collision, increasing buffering and reducing noise are achieved, and the stability of the vibration system is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a vibration-damping and noise-preventing micro-speaker according to an embodiment of the present invention;
fig. 2 is a top view of the vibration-damping noise-proof micro-speaker according to the embodiment of the present invention;
FIG. 3 is a sectional view taken along line A-A of the vibration-damping and noise-damping micro-speaker according to the embodiment of the present invention;
fig. 4 is a partial enlarged view of the vibration-damping noise-proof micro-speaker according to the embodiment of the present invention;
FIG. 5 is a sectional view of the damping and noise-damping micro-speaker according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a centering support according to an embodiment of the present invention;
fig. 7 is another schematic structural view of the centering branch piece according to the embodiment of the present invention;
description of reference numerals:
1-a sound membrane;
2-centering the supporting sheet; 21-a first fixed part; 22-a second fixed part; 23-a cantilever; 231-a sink portion; 232-damping glue layer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 7, the utility model discloses a damping anti-noise micro speaker, which comprises a sound film and a centering support sheet;
the centering support piece comprises a first fixing part and a second fixing part, the first fixing part is connected with the outer frame of the sound film, the second fixing part is connected with the inner frame of the sound film, and the first fixing part and the second fixing part are connected through a cantilever;
the end face, facing the sound film, of the cantilever is provided with a sinking portion, and a damping glue layer is arranged between the sinking portion and the sound film.
From the above description, the beneficial effects of the present invention are:
furthermore, the damping glue layer is made of silica gel.
Further, the centering branch piece is a flexible conductive plate.
Furthermore, the centering branch piece comprises two or more high polymer material layers which are sequentially overlapped.
Furthermore, two adjacent high polymer material layers are bonded through glue.
From the above description, it can be known that the adoption of the graded design is beneficial to reducing vibration and collision, and the stability of the product structure is improved.
Furthermore, the material of the high polymer material layer is one of PI, PU, PEI, PEEK, PPS, PEN, TPR or TPE.
As can be seen from the above description, the material of each two material layers may be the same or different, and may be selected according to the design requirement.
Referring to fig. 1 to 7, a first embodiment of the present invention is: a shock-absorbing noise-proof micro loudspeaker comprises a sound film 1 and a centering support 2;
the centering branch piece 2 comprises a first fixing part 21 and a second fixing part 22, the first fixing part 21 is connected with the second fixing part 22, the second fixing part 22 is connected with the sound film 1, and the first fixing part 21 and the second fixing part 22 are connected through a cantilever 23;
the end face of the cantilever 23 facing the sound membrane 1 is provided with a sinking portion 231, and a damping glue layer 232 is arranged between the sinking portion 231 and the sound membrane 1.
Referring to fig. 1 to 7, a second embodiment of the present invention is: a shock-absorbing noise-proof micro loudspeaker comprises a sound film 1 and a centering support 2;
the centering branch piece 2 comprises a first fixing part 21 and a second fixing part 22, the first fixing part 21 is connected with the second fixing part 22, the second fixing part 22 is connected with the sound film 1, and the first fixing part 21 and the second fixing part 22 are connected through a cantilever 23;
the end face of the cantilever 23 facing the sound membrane 1 is provided with a sinking portion 231, and a damping glue layer 232 is arranged between the sinking portion 231 and the sound membrane 1.
The damping glue layer 232 is made of silica gel. The centering branch piece 2 is made of a flexible conductive material. The centering branch piece 2 comprises two layers of high molecular polymer material layers which are sequentially overlapped. And the two high polymer material layers are bonded through glue. The material of the high polymer material layer is one of PI, PU, PEI, PEEK, PPS, PEN, TPR or TPE.
To sum up, the utility model provides a damping and noise-proof micro-speaker, which comprises a sound film and a centering support, when the speaker works, alternating audio current passes through a voice coil, the voice coil generates a magnetic field which changes along with the audio current and the magnetic field of a magnetic circuit system of a micro-electroacoustic device generates attraction or repulsion action, which can lead the voice coil to generate mechanical vibration to drive a vibrating diaphragm and the centering support of the micro-electroacoustic device to move up and down, at the moment, the root of a cantilever is easy to collide with a ring folding part of the vibrating diaphragm, in order to avoid the collision between a cantilever of the centering support and the sound film ring folding part, a sinking part is arranged on the cantilever of the centering support which is used for connecting a first fixing part and a second fixing part, the length of the sinking part accounts for 0.3-1 of the total length of the cantilever, and then a damping glue layer is arranged on the sinking part, thus the distance between the cantilever of the centering support and the sound film can be increased, the effects of avoiding the sound film, avoiding collision, increasing buffering and reducing noise are achieved, and the stability of the vibration system is guaranteed.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A shock-absorbing noise-proof micro-speaker is characterized by comprising a sound film and a centering support sheet;
the centering support piece comprises a first fixing part and a second fixing part, the first fixing part is connected with the outer frame of the sound film, the second fixing part is connected with the inner frame of the sound film, and the first fixing part and the second fixing part are connected through a cantilever;
the end face, facing the sound film, of the cantilever is provided with a sinking portion, and a damping glue layer is arranged between the sinking portion and the sound film.
2. The micro speaker as claimed in claim 1, wherein the damping glue layer is made of silica gel.
3. The vibration-damping, anti-noise micro-speaker of claim 1, wherein the centering cup is a flexible conductive plate.
4. The micro speaker as claimed in claim 3, wherein the centering chip comprises two or more polymer material layers stacked in sequence.
5. The micro speaker as claimed in claim 4, wherein two adjacent polymer material layers are bonded by glue.
6. The micro speaker as claimed in claim 4, wherein the polymer material layer is one of PI, PU, PEI, PEEK, PPS, PEN, TPR or TPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981408.XU CN209845299U (en) | 2019-06-26 | 2019-06-26 | Damping noise-proof micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920981408.XU CN209845299U (en) | 2019-06-26 | 2019-06-26 | Damping noise-proof micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209845299U true CN209845299U (en) | 2019-12-24 |
Family
ID=68899174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920981408.XU Active CN209845299U (en) | 2019-06-26 | 2019-06-26 | Damping noise-proof micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209845299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933576A (en) * | 2020-02-20 | 2020-03-27 | 共达电声股份有限公司 | Centering support piece and loudspeaker with same |
| WO2021134244A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Loudspeaker structure, and electronic device applying same |
-
2019
- 2019-06-26 CN CN201920981408.XU patent/CN209845299U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134244A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Loudspeaker structure, and electronic device applying same |
| CN110933576A (en) * | 2020-02-20 | 2020-03-27 | 共达电声股份有限公司 | Centering support piece and loudspeaker with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6111969A (en) | High fidelity, broad band acoustic loudspeaker | |
| JP6005974B2 (en) | Reinforced diaphragm for thin loudspeaker transducer | |
| JP6029846B2 (en) | Loudspeaker magnet assembly | |
| CN209845299U (en) | Damping noise-proof micro loudspeaker | |
| JP6045177B2 (en) | Loudspeaker magnet with channel | |
| CN101292568A (en) | Speaker, speaker diaphragm suspension | |
| CN102014331A (en) | Multifunctional micro-speaker | |
| CN101931846A (en) | Multifunction micro speaker | |
| KR101584651B1 (en) | Slim type speaker and method for manufacturing thereof | |
| CN105979431A (en) | Passive radiator and loudspeaker | |
| CN204031442U (en) | Loud speaker | |
| KR20160108518A (en) | Multi-diaphragm speaker | |
| TW202220459A (en) | Flat speaker driven by a single permanent magnet and one or more voice coils | |
| CN209462602U (en) | Microspeaker | |
| CN102273228B (en) | Multifunctional micro-speaker | |
| CN209526859U (en) | A kind of loudspeaker | |
| KR101111100B1 (en) | A hi-end sound speaker unit for an earphone | |
| KR101461410B1 (en) | Acoustic diaphragm | |
| KR101439935B1 (en) | Sound Output Device | |
| EP2911413B1 (en) | Loudspeaker with piezoelectric elements | |
| WO2000021329A1 (en) | High fidelity, broad band acoustic loudspeaker | |
| CN102273231A (en) | Multifunctional microspeaker | |
| KR20030079760A (en) | Entertainment sound panels | |
| CN102316401A (en) | Multi-function micro speaker | |
| KR100769885B1 (en) | The speaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |