CN111031416A - Loudspeaker module and electronic device - Google Patents
Loudspeaker module and electronic device Download PDFInfo
- Publication number
- CN111031416A CN111031416A CN201911163790.4A CN201911163790A CN111031416A CN 111031416 A CN111031416 A CN 111031416A CN 201911163790 A CN201911163790 A CN 201911163790A CN 111031416 A CN111031416 A CN 111031416A
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- CN
- China
- Prior art keywords
- shell
- cavity
- speaker module
- damping
- retaining wall
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
- H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides a loudspeaker module and an electronic device, wherein the loudspeaker module comprises a first shell, a second shell forming an accommodating space with the first shell, and a loudspeaker monomer arranged in the accommodating space, wherein the accommodating space is divided into a front sound cavity and a rear sound cavity by a diaphragm of the loudspeaker monomer; an independent cavity is also arranged in the accommodating space; the independent cavity is communicated with the front sound cavity through a communicating channel; and, a damping structure is provided in the communication passage. By utilizing the invention, the acoustic damping of the communication channel can be changed through the damping structure, and the flat high-frequency curve and stable performance of the FR product are ensured.
Description
Technical Field
The present invention relates to the field of acoustic technologies, and in particular, to a speaker module and an electronic device having the speaker module.
Background
In recent years, the consumer electronics market has been expanded, so that a large number of mobile phones and notebook computers have been widely used, and there is a wide demand for sound generating devices as important acoustic components in consumer electronics. With the demands of consumer electronic products for light and thin appearance and more excellent performance, the sound generating device as an important component unit of such products also puts forward higher and higher demands on performance, size, safety, etc.
At present, as sound generating mechanism's speaker module adopts the independent cavity that sets up and preceding sound chamber intercommunication to adjust FR high frequency resonance usually, however, current independent cavity design often adjusts the dynamics too big to FR, thereby lead to appearing darker valley at the high frequency resonance peak, make FR high frequency curve flat inadequately, produce the property ability and can not obtain the assurance.
Disclosure of Invention
In view of the foregoing problems, an object of the present invention is to provide a speaker module and an electronic device, so as to solve the problem that the high frequency performance of the product cannot be guaranteed due to the large fluctuation value of the high frequency curve of the speaker module.
The invention provides a loudspeaker module, which comprises a first shell, a second shell and a loudspeaker monomer, wherein the second shell and the first shell form an accommodating space; an independent cavity is also arranged in the accommodating space; the independent cavity is communicated with the front sound cavity through a communicating channel; and, a damping structure is provided in the communication passage.
In addition, a preferable technical scheme is that a retaining wall extending towards the first shell is arranged on the second shell; an extension arm extending to the side wall of the second shell from one side of the loudspeaker monomer is arranged on the retaining wall; one end of the retaining wall is connected with the side wall of the second shell, and a communication channel is formed between the other end of the retaining wall and the other side wall of the second shell; the retaining wall, the extension arm and the side wall of the second shell are matched with the first shell to form an independent cavity.
In addition, the preferred technical scheme is that the damping structure comprises a partition plate arranged at the communication channel and a through hole arranged on the partition plate; and the independent cavity is communicated with the front sound cavity through a through hole.
In addition, the preferred technical scheme is that the through-hole is square hole, circular port or oval-shaped hole.
In addition, the preferred technical scheme is that the damping structure comprises at least one damping plate arranged in the communication channel, and the arrangement direction of the damping plate is parallel to the extension direction of the communication channel; and conduction gaps are formed among the damping plate, the retaining wall and the side wall of the second shell, and the independent cavity is conducted with the front sound cavity through the conduction gaps.
In addition, the preferred technical scheme is that the damping plate is in a linear structure, a wavy structure or a zigzag structure.
In addition, a preferred technical scheme is that the device further comprises a third shell matched with the first shell and/or the second shell.
In addition, the preferable technical proposal is that the retaining wall, the extension arm and the side wall of the second shell are matched with the first shell to form a rear sound cavity;
the independent cavity is adjacent to the rear sound cavity.
In addition, the preferred technical scheme is that a sound outlet channel for communicating the front sound cavity with the outside is arranged on the second shell; the sound outlet channel and the independent cavity are respectively positioned on two sides of the loudspeaker monomer.
According to another aspect of the present invention, there is provided an electronic device including the speaker module as described in any one of the above.
Utilize above-mentioned speaker module and electron device, set up damping structure in the intercommunication passageway in the independent cavity of intercommunication and preceding sound chamber, can increase the acoustic damping of intercommunication passageway when not influencing resonant frequency to prevent that darker valley from appearing in product FR curve, improve the acoustic performance of speaker module.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic partial structure diagram of a speaker module according to a first embodiment of the invention.
Fig. 2 is a schematic partial structure diagram of a speaker module according to a second embodiment of the invention.
Wherein the reference numerals include: the loudspeaker comprises a sound outlet channel 1, a front sound cavity 2, a second shell 3, a loudspeaker single body 4, a retaining wall 5, a communication channel 6, a damping structure 7, a through hole 71, a partition plate 72, a damping structure 7', a filter plate 8, an independent cavity 9, an extension arm 10 and a rear sound cavity 11.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
In order to solve the problems that the FR high-frequency curve is not flat enough and the like due to the fact that the FR is adjusted too much by an independent cavity structure of the existing loudspeaker diaphragm, the independent cavity of the loudspeaker module is communicated with the front sound cavity through a communicating channel, a damping structure is arranged in the communicating channel, and the acoustic damping of the communicating channel is adjusted through the damping structure, so that the fluctuation degree of the high-frequency curve of a product is reduced, and the acoustic performance of the product is improved.
To describe the structure of the speaker module according to the present invention in detail, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic structure of a speaker module according to a first embodiment of the present invention.
As shown in fig. 1, a speaker module according to a first embodiment of the present invention includes a first housing (not shown in the figure), a second housing 3 forming an accommodating space with the first housing, and a speaker unit 4 disposed in the accommodating space, wherein a diaphragm of the speaker unit 4 divides the accommodating space into a front acoustic cavity 2 and a rear acoustic cavity 11; in addition, an independent cavity 9 except the front sound cavity 2 and the rear sound cavity 11 is further arranged in the accommodating space, the independent cavity 9 is communicated with the front sound cavity 2 through a communication channel 6 arranged on the first shell or the second shell, a damping structure is arranged in the communication channel 6, and the sound damping at the communication channel 6 is adjusted through the damping structure.
Specifically, a retaining wall 5 extending in the first housing direction is provided on the second housing 3; an extension arm 10 extending to the side wall of the second shell 3 far away from one side of the loudspeaker single body 4 is arranged on the retaining wall 5, and the extension arm 10 is perpendicular to the retaining wall 5; one end of the retaining wall 5 is connected with the side wall of the second housing 3, a communication channel 6 is formed between the other end of the retaining wall 5 and the other side wall of the second housing 3, and a damping structure 7 is arranged in the communication channel 6; the retaining wall 5, the extension arm 10 and the side wall of the second shell 3 are matched with the first shell to form an independent cavity 9, the independent cavity 9 is communicated with the front sound cavity 2 through the communicating channel 6, and the sound damping at the communicating channel 6 is adjusted through the damping structure 7 in the communicating channel 6.
In one embodiment, the damping structure 7 includes a partition plate 72 disposed at the communication channel 6 and a through hole 71 disposed on the partition plate 72, the height of the partition plate 72 is the same as the height of the retaining wall 5 and the extension arm 10, after the second casing 3 is assembled with the first casing, the independent cavity 9 is communicated with the front sound cavity 2 through the through hole 71 on the partition plate 72, and the sound damping in the communication channel 6 can be controlled by adjusting the size of the through hole 71, so as to effectively prevent the high frequency curve of the product from generating large fluctuation, and ensure the stable acoustic performance of the product.
In one embodiment of the present invention, the through hole 71 formed in the partition plate 72 may be a square hole, a circular hole, or an elliptical hole, and may be set according to the size of the product and the production requirement.
In addition, in order to further adjust the high-frequency characteristic of the loudspeaker module, at least one filter plate 8 is arranged in the independent cavity 9; the filter plate 8 set up the direction mutually perpendicular or parallel with the extending direction of intercommunication passageway 6, filter plate 8 can be straight plate structure or wave structure, setting up the in-process, filter plate 8 can set up in independent cavity 9, also can be connected with barricade 5 and extend to in independent cavity 9, perhaps can set up with multiple shape in independent cavity 9, like bending structure, parallel structure etc., can reduce the FR of speaker module at the resonance peak of high frequency range through filter plate 8, thereby improve the frequency response curve.
In another embodiment of the present invention, the retaining wall 5, the extension arm 10 and the side wall of the second housing 3 cooperate with the first housing to form a rear acoustic chamber 11; due to the arrangement of the retaining wall 5 and the extension arm 10, the independent cavity 9 is arranged adjacent to the rear sound cavity 11, and the independent cavity 9 is isolated from the rear sound cavity 11 through the extension arm 10.
In addition, still be provided with the play sound passageway 1 of preceding sound chamber 2 of intercommunication and external on second casing 3, it is located speaker monomer 4's both sides respectively with independent cavity to go out the sound passageway 1, independent cavity 9 forms the ante chamber of speaker module with preceding sound chamber 2 jointly, it switches on with the resonant cavity through preceding sound chamber 2 and intercommunication passageway 6 to go out sound passageway 1, at the damping structure that goes out sound passageway 1 and set up, can increase the acoustical resistance of the department of switching on (the vibrating air current advances promptly, the resistance of intercommunication passageway 6 department), reduce the figure of quality of speaker module, make the FR of this speaker module become gentle at the high frequency range.
Fig. 2 shows a schematic structure of a speaker module according to a second embodiment of the present invention.
As shown in fig. 2, a speaker module according to a second embodiment of the present invention includes a first housing, a second housing 3 forming an accommodating space with the first housing, and a speaker unit 4 disposed in the accommodating space, where a diaphragm of the speaker unit 4 divides the accommodating space into a front acoustic cavity 2 and a rear acoustic cavity 11; in addition, an independent cavity 9 except the front sound cavity 2 and the rear sound cavity 11 is further arranged in the accommodating space, the independent cavity 9 is communicated with the front sound cavity 2 through a communication channel 6 arranged on the first shell or the second shell, a damping structure is arranged in the communication channel 6, and the sound damping at the communication channel 6 is adjusted through the damping structure.
Specifically, a retaining wall 5 extending in the first housing direction is provided on the second housing 3; an extension arm 10 extending to the side wall of the second shell 3 far away from one side of the loudspeaker single body 4 is arranged on the retaining wall 5, and the extension arm 10 is perpendicular to the retaining wall 5; one end of the retaining wall 5 is connected with the side wall of the second housing 3, a communication channel 6 is formed between the other end of the retaining wall 5 and the other side wall of the second housing 3, and a damping structure 7' is arranged in the communication channel 6; the retaining wall 5, the extension arm 10 and the side wall of the second housing 3 are matched with the first housing to form an independent cavity 9, the independent cavity 9 is communicated with the front sound cavity 2 through the communicating channel 6, and the sound damping at the communicating channel 6 is adjusted through the damping structure 7' in the communicating channel 6.
In the second embodiment, the damping structure 7' includes at least one damping plate disposed in the communicating channel 6, the setting direction of the damping plate is parallel to the extending direction of the communicating channel 6, the damping plate is disposed in the communicating channel 6 but does not completely block the communicating channel 6, so that a conduction gap can be formed between the damping plates (in the case of disposing at least two damping plates), between the damping plate and the retaining wall 5, and between the damping plate and the side wall of the second housing 3, and the independent cavity 9 is conducted with the front acoustic cavity 2 through the conduction gap.
Specifically, the damping plate can be in a linear structure, a wavy structure or a zigzag structure and the like, the damping plates with different numbers and different shapes are arranged in the communicating channel 6, and the acoustic damping in the communicating channel 6 can be controlled, so that the high-frequency curve of the product is effectively prevented from generating large fluctuation, and the stability of the acoustic performance of the product is ensured.
In addition, in order to further adjust the high-frequency characteristic of the loudspeaker module, at least one filter plate 8 is arranged in the independent cavity 9; the filter plate 8 set up the direction mutually perpendicular or parallel with the extending direction of intercommunication passageway 6, filter plate 8 can be straight plate structure or wave structure, setting up the in-process, filter plate 8 can set up in independent cavity 9, also can be connected with barricade 5 and extend to in independent cavity 9, perhaps can set up filter plate 8 with multiple shape in independent cavity 9, like bending structure, parallel structure etc., can reduce the FR of speaker module at the resonance peak of high frequency range through filter plate 8, thereby improve the frequency response curve.
In another embodiment of the present invention, the retaining wall 5, the extension arm 10 and the side wall of the second housing 3 cooperate with the first housing to form a rear acoustic chamber 11; due to the arrangement of the retaining wall 5 and the extension arm 10, the independent cavity 9 is arranged adjacent to the rear sound cavity 11, and the independent cavity 9 is isolated from the rear sound cavity 11 through the extension arm 10.
In addition, still be provided with the play sound passageway 1 of preceding sound chamber 2 of intercommunication and external on second casing 3, play sound passageway 1 and independent cavity are located the both sides of speaker monomer 4 respectively, play sound passageway 1, independent cavity 9 forms the ante chamber of speaker module with preceding sound chamber 2 jointly, play sound passageway 1 switches on with the resonant cavity through preceding sound chamber 2 and intercommunication passageway 6, at the damping structure that goes out sound passageway 1 and set up, can increase the acoustical resistance of the department of switching on (the vibrating air current advances promptly, the resistance of intercommunication passageway department), reduce the figure of merit of speaker module, make the FR of this speaker module become gentle at the high-frequency band.
In the above two embodiments, the speaker module may further include a third housing, and the third housing is fittingly connected to the first housing and/or the second housing. The first shell, the second shell and the third shell are matched with each other to form a front sound cavity, a rear sound cavity and an independent cavity.
In the above two embodiments, the damping structure may be made of various materials having a damping function, the partition plate or the damping plate serving as the damping structure may be separately adhered and fixed in the communicating channel, or the damping structure may be made of a material identical to that of the housing (the first housing, the second housing, or the third housing) of the speaker module, and the damping structure and the housing of the speaker module are integrally injection-molded.
Corresponding to the loudspeaker module, the invention also provides an electronic device which comprises the loudspeaker module.
Utilize above-mentioned speaker module and electron device, adjust the acoustic damping of the intercommunication passageway department of connecting independent cavity and preceding acoustic cavity through baffle and through-hole or damping plate of setting on the baffle, can make the FR of speaker module more gentle at the high-frequency band to reach the purpose of improving the product frequency curve.
The speaker module and the electronic device according to the present invention are described above by way of example with reference to fig. 1 and 2. However, it should be understood by those skilled in the art that various modifications can be made to the speaker module and the electronic device of the present invention without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (10)
1. A loudspeaker module comprises a first shell, a second shell and a loudspeaker single body, wherein the second shell and the first shell form an accommodating space, the loudspeaker single body is arranged in the accommodating space, and a vibrating diaphragm of the loudspeaker single body divides the accommodating space into a front sound cavity and a rear sound cavity; it is characterized in that the preparation method is characterized in that,
an independent cavity is also arranged in the accommodating space;
the independent cavity is communicated with the front sound cavity through a communicating channel; and the number of the first and second electrodes,
and a damping structure is arranged in the communication channel.
2. The speaker module as recited in claim 1,
a retaining wall extending towards the first shell is arranged on the second shell;
an extension arm extending to the side wall of the second shell from one side far away from the loudspeaker single body is arranged on the retaining wall;
one end of the retaining wall is connected with the side wall of the second shell, and the communication channel is formed between the other end of the retaining wall and the other side wall of the second shell;
the retaining wall, the extension arm and the side wall of the second shell are matched with the first shell to form the independent cavity.
3. The speaker module as recited in claim 1,
the damping structure comprises a partition plate arranged at the communication channel and a through hole arranged on the partition plate; and the number of the first and second electrodes,
the independent cavity is communicated with the front sound cavity through the through hole.
4. A speaker module as claimed in claim 3,
the through hole is a square hole, a circular hole or an elliptical hole.
5. The speaker module as recited in claim 2,
the damping structure comprises at least one damping plate arranged in the communicating channel, and the arrangement direction of the damping plate is parallel to the extension direction of the communicating channel;
the damping plate with the barricade and form between the lateral wall of second casing and switch on the clearance, independent cavity with pass through between the preceding sound chamber switch on the clearance.
6. The speaker module as recited in claim 5,
the damping plate is of a linear structure, a wavy structure or a zigzag structure.
7. The speaker module as recited in claim 1, further comprising a third housing adapted to fit the first housing and/or the second housing.
8. The speaker module as recited in claim 2,
the retaining wall, the extension arm and the side wall of the second shell are matched with the first shell to form the rear sound cavity;
the independent cavity is adjacent to the rear sound cavity.
9. The speaker module as recited in claim 1,
a sound outlet channel which is communicated with the front sound cavity and the outside is arranged on the second shell;
the sound outlet channel and the independent cavity are respectively positioned on two sides of the loudspeaker monomer.
10. An electronic device comprising a speaker module according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163790.4A CN111031416A (en) | 2019-11-25 | 2019-11-25 | Loudspeaker module and electronic device |
| PCT/CN2019/129000 WO2021103253A1 (en) | 2019-11-25 | 2019-12-27 | Loudspeaker module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163790.4A CN111031416A (en) | 2019-11-25 | 2019-11-25 | Loudspeaker module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111031416A true CN111031416A (en) | 2020-04-17 |
Family
ID=70206329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911163790.4A Pending CN111031416A (en) | 2019-11-25 | 2019-11-25 | Loudspeaker module and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111031416A (en) |
| WO (1) | WO2021103253A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676569A (en) * | 2021-08-02 | 2021-11-19 | 维沃移动通信有限公司 | Sound production assembly and electronic equipment |
| CN113676581A (en) * | 2021-08-17 | 2021-11-19 | 维沃移动通信有限公司 | Sound production device and electronic equipment |
| CN114745631A (en) * | 2022-03-31 | 2022-07-12 | 歌尔股份有限公司 | Sounder module and intelligent head-mounted equipment |
| WO2023036061A1 (en) * | 2021-09-09 | 2023-03-16 | 维沃移动通信有限公司 | Electronic device |
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| CN209659616U (en) * | 2019-06-21 | 2019-11-19 | 歌尔科技有限公司 | Loudspeaker mould group |
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| US10034080B2 (en) * | 2016-10-27 | 2018-07-24 | AAC Technologies Pte. Ltd. | Speaker |
| CN207070330U (en) * | 2017-06-26 | 2018-03-02 | 歌尔科技有限公司 | Loudspeaker module and electronic equipment |
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- 2019-11-25 CN CN201911163790.4A patent/CN111031416A/en active Pending
- 2019-12-27 WO PCT/CN2019/129000 patent/WO2021103253A1/en active Application Filing
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| CN204993827U (en) * | 2015-09-09 | 2016-01-20 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN206061139U (en) * | 2016-06-23 | 2017-03-29 | 浙江工业职业技术学院 | A kind of microphone with pen container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113676569A (en) * | 2021-08-02 | 2021-11-19 | 维沃移动通信有限公司 | Sound production assembly and electronic equipment |
| CN113676581A (en) * | 2021-08-17 | 2021-11-19 | 维沃移动通信有限公司 | Sound production device and electronic equipment |
| CN113676581B (en) * | 2021-08-17 | 2024-04-19 | 维沃移动通信有限公司 | Sound producing device and electronic equipment |
| WO2023036061A1 (en) * | 2021-09-09 | 2023-03-16 | 维沃移动通信有限公司 | Electronic device |
| CN114745631A (en) * | 2022-03-31 | 2022-07-12 | 歌尔股份有限公司 | Sounder module and intelligent head-mounted equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021103253A1 (en) | 2021-06-03 |
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Application publication date: 20200417 |