CN106941651B - Loudspeaker module - Google Patents
Loudspeaker module Download PDFInfo
- Publication number
- CN106941651B CN106941651B CN201710270892.0A CN201710270892A CN106941651B CN 106941651 B CN106941651 B CN 106941651B CN 201710270892 A CN201710270892 A CN 201710270892A CN 106941651 B CN106941651 B CN 106941651B
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- module
- shell
- loudspeaker
- sealing
- speaker
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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
- 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
Abstract
The invention provides a loudspeaker module, which comprises an upper module shell, a lower module shell and loudspeaker monomers accommodated in the upper module shell and the lower module shell; the loudspeaker module further comprises a sealing shell which is sleeved on the outer side of the loudspeaker monomer and is fixedly connected with the module upper shell; a supporting platform for fixing the loudspeaker single body is arranged on the upper shell of the module, a positioning platform arranged around the supporting platform is arranged on the outer side of the supporting platform, and the height of the positioning platform is smaller than that of the supporting platform; the loudspeaker unit is fixed on the supporting table, the sealing shell is fixed on the positioning table, and sealing is formed between the sealing shell and the loudspeaker unit. By utilizing the invention, water and air can be effectively prevented from entering the interior of a product from the side sound outlet hole of the loudspeaker module, and the sealing integrity of the product is ensured.
Description
Technical Field
The invention relates to the technical field of acoustics, in particular to a loudspeaker module with high waterproof performance.
Background
At present, the expansion of consumer electronics market makes a large number of mobile phones and notebook computers widely used, and as an important acoustic component in consumer electronics, a sound generating device also has a wide demand. With the demand for lighter and thinner appearance and more excellent performance of consumer electronic products, the sound generating device as an important component unit of such products has also raised higher and higher requirements in terms of performance, size, safety, etc.
The speaker module is widely applied to consumer electronics as a sound generating device which is commonly used at present. The waterproof structure of current speaker module scribbles the glue on speaker monomer's lateral wall sealed mainly, because the free structural constraint of module casing and speaker and the mobility restriction of glue, has water, gas and gets into the risk in speaker module back chamber from the bonding department of vibrating diaphragm and module casing, leads to the waterproof inefficacy of product.
The existing loudspeaker module sealed only by gluing cannot meet the requirements of users on the performances of water resistance, dust resistance and the like of products.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a speaker module, so as to solve the problems of poor sealing performance, and incapability of ensuring waterproof and dustproof performance of the existing speaker module.
The invention provides a loudspeaker module, which comprises an upper module shell, a lower module shell and loudspeaker monomers accommodated in the upper module shell and the lower module shell; the loudspeaker module further comprises a sealing shell which is sleeved on the outer side of the loudspeaker monomer and is fixedly connected with the module upper shell; a supporting platform for fixing the loudspeaker single body is arranged on the upper shell of the module, a positioning platform arranged around the supporting platform is arranged on the outer side of the supporting platform, and the height of the positioning platform is smaller than that of the supporting platform; the loudspeaker unit is fixed on the supporting table, the sealing shell is fixed on the positioning table, and sealing is formed between the sealing shell and the loudspeaker unit.
In addition, the sealing shell and the positioning table are fixedly connected by gluing or hot melting or ultrasonic.
In addition, it is preferable that a receiving groove for receiving glue for fixing the sealing case is provided on the positioning table when the sealing case and the positioning table are fixedly connected by gluing.
In addition, the sealing shell and the positioning table are fixedly connected in a hot melting mode, a protruding hot melting column is arranged on the sealing shell, a molten glue groove is arranged at the position, corresponding to the hot melting column, of the positioning table, and the hot melting column is melted and contained in the molten glue groove.
Further, it is preferable that the sealing case forming a seal with the speaker unit includes: a gap exists between the sealed shell and the loudspeaker monomer; the one end of keeping away from the module epitheca at the sealed shell is provided with the notes gluey groove of slope structure, and the sealed shell fills the clearance with glue through annotating gluey groove with the speaker monomer in, fills the clearance, makes sealed shell and speaker monomer form sealedly.
Further, it is preferable that the speaker unit includes a vibration system and a magnetic circuit system; the vibration system comprises a vibrating diaphragm and a voice coil which is fixedly adhered to one side of the vibrating diaphragm; the magnetic circuit system comprises a magnetic yoke, a magnet and a washer which are sequentially accommodated in the magnetic yoke; the vibrating diaphragm comprises a fixed part, a ring-folded part and a reinforcing part which are arranged in sequence from outside to inside; one side of the fixing part far away from the magnetic circuit system is stuck and fixed on the supporting platform.
In addition, the preferred structure is that the module upper shell is provided with a side sound outlet, and the side edge of the sealing shell close to the side sound outlet is provided with a notch avoiding the module upper shell.
In addition, the preferred structure is that a damping net is attached to the position of the side sound outlet hole corresponding to the module upper shell.
In addition, the preferred structure is that the supporting bars and the positioning platform are in a step-shaped structure.
In addition, it is preferable that a groove for receiving glue for fixing the speaker unit is provided on the support base when the speaker unit is fixed to the support base by gluing.
Utilize above-mentioned speaker module, be provided with a cover and establish the sealed shell in the speaker monomer outside, seal respectively between sealed shell and speaker monomer and the module epitheca to ensure the integrality and the reliability that the product is sealed, product equipment is simple, with low costs, and the stable performance is reliable.
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 readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention becomes more fully understood. In the drawings:
fig. 1 is an exploded view of a speaker module according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a speaker module according to an embodiment of the present invention.
Wherein the reference numerals include: module inferior valve 1, speaker monomer 2, sealed shell 3, breach 31, injecting glue groove 32, module epitheca 4, brace table 41, location platform 42, side sound outlet 43.
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.
To describe the speaker module of the present invention in detail, embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 and 2 show an exploded structure and a sectional structure of a speaker module according to an embodiment of the present invention, respectively.
As shown in fig. 1 and fig. 2, the speaker module according to the embodiment of the present invention includes a module upper case 4, a module lower case 1 connected to the module upper case 4 in an adaptive manner, and a speaker unit 2 accommodated in a cavity formed by the module upper case 4 and the module lower case 1; in addition, the loudspeaker module also comprises a sealing shell 3 which is sleeved outside the loudspeaker single body 2 and is fixedly connected with the module upper shell 4; a supporting platform 41 for fixing the loudspeaker single body 2 is arranged on the module upper shell 4, a positioning platform 42 arranged around the supporting platform 41 is arranged on the outer side of the supporting platform 41, and the height of the positioning platform 42 is smaller than that of the supporting platform 41 in the vertical direction perpendicular to the plane where the supporting platform 41 is located; the speaker unit 2 is fixed on the support 41, the sealing case 3 is fixed on the positioning table 42, and the sealing case 3 forms a seal with the speaker unit 2.
Specifically, contain module epitheca 4 and module inferior valve 1 among the speaker module, module epitheca 4 forms the inner chamber with module inferior valve 1, and speaker monomer 2 is acceptd in this inner chamber. A support table is provided on the module upper case 4, and the diaphragm of the speaker unit 2 is fixed on the support table 41. A positioning table 42 having a lower height than the support table 41 is provided on the outer periphery of the support table 41, that is, the positioning table 42 is provided around the support table 41 and has a height smaller than the support table 41. A sealing shell 3 is fixedly connected to the positioning table 41, and the sealing shell 3 is sleeved on the periphery of one side of the speaker unit 2 close to the vibrating diaphragm. Thus, the speaker unit 2, the sealing case 3, and the module lower case 1 form a closed rear acoustic chamber, and the supporting table 41, the speaker unit 2, and the module upper case 4 form a front acoustic chamber. After water, gas enter into preceding sound chamber, because 3 fixed connection of sealed shell are on location platform 42 and the cover is established in speaker monomer 2's the outside, sealed shell 3 forms sealedly with speaker monomer 2, can prevent effectively that water, gas from getting into speaker module rear chamber from the bonding department of vibrating diaphragm and module casing, realize the waterproof dirt-proof effect of product.
Further, the supporting platform 41 and the positioning platform 42 are in a step-like structure, after the sealing shell 3 is fixed on the positioning platform 42, the sealing shell 3 is simultaneously sleeved outside the speaker unit 2 and the supporting platform 41, and the height of the sealing shell 3 in the vertical direction is not less than the step height between the supporting platform 41 and the positioning platform 42, that is, the height of the sealing shell 3 is greater than the height difference between the supporting platform 41 and the positioning platform 42, so that reliable sealing between the speaker unit 2 and the supporting platform 41 and the sealing shell 3 can be ensured, and when the sealing shell 3 is fixed on the positioning platform 42, the supporting platform 41 can simultaneously play a role of a retaining wall and plays a certain protection role for the speaker unit 2. For example, when the sealing case 3 is fixed to the positioning table 42 by glue, the height of the support table 41 is higher than the height of the positioning table 42, so that the glue can be accumulated on the positioning table 42, and the glue is prevented from diffusing to the speaker unit 2, which affects the performance of the speaker unit 2. In addition, the positioning table 42 may also be provided with a limiting groove structure lower than the supporting table 41, and the sealing shell 3 is limited and fixed in the limiting groove, which is not limited in the embodiment of the present invention.
It should be noted that the positioning table 42, the supporting table 41 and the module upper case 4 in the embodiment of the present invention may be configured as an integral injection molding structure, and the sealing case 3 and the module upper case 4 are fixedly connected, actually, the sealing case 3 and the positioning table 42 are fixedly connected; in a similar way, the speaker unit 2 is fixedly connected to the module upper case 4, and is actually supported and fixed on the supporting platform 41 for the speaker unit 2.
Furthermore, the sealing shell 3 is an annular structure sleeved outside the speaker unit 2, and the sealing shell 3 and the positioning table 42 of the module upper shell 4 can be fixedly connected through gluing or hot melting or ultrasonic. Wherein, when sealed shell 3 and module epitheca 4 pass through the mode fixed connection of hot melt, still can set up bellied hot melt post on sealed shell 3, set up the melten gel groove in the position that location platform 42 corresponds the hot melt post, at the hot melt in-process, the melten gel after the hot melt post melts is acceptd in the melten gel inslot to ensure the sealing connection between sealed shell 3 and the location platform 42. When the sealing shell 3 is fixedly connected to the positioning table 42 by gluing, a concave receiving groove (not shown) may be formed on the positioning table 42, and the glue for receiving and fixing the sealing shell 3 may be received in the receiving groove.
In order to facilitate the assembly of the speaker module, taking into account the dimensional tolerances existing in the components themselves, in one embodiment of the invention, the sealing of the sealing housing 3 with the speaker unit 2 comprises: the sealing shell 3 and the loudspeaker single body 2 are sealed through glue. Can be provided with certain clearance this moment between sealed shell 3 and speaker monomer 2, this clearance not only can establish sealed shell 3 in speaker monomer 2's the outside easily, simplifies sealed shell 3's assembly, can also use in the glue that connects sealed shell 3 and speaker monomer 2 fills to whole clearance in, and then ensures to form sealedly between sealed shell 3 and the speaker monomer 2, prevents that pollutants such as dust granule and steam in the air from entering into speaker module's back chamber or product inside.
In addition, for simplifying the sealed operation of glue between sealed shell 3 and the speaker monomer 2, make things convenient for the pouring of glue and increase the volume of pouring of glue, the one end of keeping away from module epitheca 4 at sealed shell 3 is provided with the slope structure to keeping away from speaker monomer 2 one side slope, this slope structure forms the injecting glue groove 32 of injecting glue promptly, fixed sealed shell 3 pours into the clearance through injecting glue groove 32 with the glue of speaker monomer 2 in, unnecessary glue is then acceptd in injecting glue groove 32, prevent that it from spilling over and polluting the speaker module, in pouring glue into the clearance through injecting glue groove 32 promptly, fill the clearance, make sealed shell 3 and speaker monomer 2 form sealedly.
It should be noted that, the sealing can 3 and the speaker unit 2 may also be sealed by a method, such as forming a seal by using a double-sided tape or other methods, which is not limited in this embodiment of the present invention.
In an embodiment of the present invention, a groove (not shown in the figure) for accommodating glue may be further disposed on the supporting platform 41, the speaker unit 2 is fixed on the supporting platform 41 by gluing, the glue for fixing the speaker unit 2 is accommodated in the groove of the supporting platform 41, and the arrangement of the groove can increase the glue coating amount and improve the fixing firmness of the speaker unit 2.
In another embodiment of the present invention, the speaker unit 2 includes a vibration system (not shown) and a magnetic circuit system (not shown) correspondingly disposed; the vibration system comprises a vibration diaphragm and a voice coil which is fixedly adhered to one side of the vibration diaphragm, and the vibration diaphragm further comprises a fixed part, a ring bending part and a reinforcing part which are sequentially arranged from outside to inside; magnetic circuit includes the yoke, accepts magnet and china department in the yoke in proper order, and when with speaker monomer and module epitheca 4 fixed connection, the fixed part is kept away from magnetic circuit's one side and is pasted fixedly on the brace table 41 of module epitheca 4, pastes fixedly through glue between the peripheral lateral wall of magnet and china department and the sealed shell 3.
In the speaker module according to the embodiment of the present invention, the module upper case 4 is further provided with the side sound outlet 43, in view of the special arrangement and structure of the side sound outlet 43, the side of the sealing case 3 close to the side sound outlet 43 is provided with the notch 31 avoiding the module upper case 4, and the position of the module upper case 4 corresponding to the side sound outlet 43 is attached with the damping mesh.
In other words, as shown in fig. 2, an inclined structure (i.e., an inclined arm) is present on the side wall of the module upper case 4 at the side sound outlet 43, where the side wall of the inclined structure forms a horn-shaped sound outlet channel, the side sound outlet 43 is disposed at the opening of the sound outlet channel, and a notch 31 avoiding the inclined arm is disposed on the sealing case 3 to match the position and structure of the side sound outlet 43, and the length of the notch 31 can be set correspondingly according to the structure of the module upper case, so that the sealing case 3 can be ensured to be connected with the speaker unit 2 and the module upper case 4 in a sealing manner.
In another embodiment of the present invention, the speaker module further includes an electrical connector (not shown in the figure) for connecting an internal circuit and an external circuit of the speaker module, one end of the electrical connector is connected to the voice coil, and the other end of the electrical connector is connected to the external circuit of the speaker module, so that the voice coil is connected to the external circuit through the electrical connector. The electrical connection member may be an FPCB (Flexible Printed Circuit Board).
The assembling process of the speaker module mainly comprises the following steps: firstly, gluing on a support table 41 of a module upper shell 4, and sticking and fixing the loudspeaker single body 2 on the support table 41 after gluing so as to seal the loudspeaker single body 2 and the module upper shell 4; then, glue is applied to a positioning table 42 surrounding the supporting table 41, the sealing shell 3 is sleeved outside the speaker unit 2, and the upper end face (the end far away from the glue injection groove) of the sealing shell 3 is fixedly adhered to the positioning table 42 so as to seal the sealing shell 3 and the module upper shell 4; secondly, glue is poured into a gap between the sealing shell 3 and the loudspeaker single body 2 through a glue pouring groove of the sealing shell 3, so that the loudspeaker single body 2 and the sealing shell 3 are sealed; and finally, assembling the module lower shell and the module upper shell 4 to form the whole loudspeaker module.
Above-mentioned speaker module can be applied to among the categorised electron device, and electron device includes as above speaker module, and inside the sealed shell structure of speaker module can prevent effectively that pollutants such as water, gas from entering into the back sound chamber or the electron device of speaker module to ensure electron device's waterproof performance reliable and stable.
According to the loudspeaker module provided by the embodiment of the invention, the sealing shell is arranged to seal the sealing shell, the loudspeaker monomer and the module upper shell respectively, so that the sealing integrity of a product is ensured, and the defect of water-proof failure of the product is overcome; in addition, the arrangement of the sealing shell can also reduce the uncertainty of the process gluing, optimize the product gluing process and reduce the production cost.
A loudspeaker module according to the invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the speaker module set forth above without departing from the spirit of the invention. Accordingly, the scope of the invention should be determined from the content of the appended claims.
Claims (9)
1. A loudspeaker module comprises an upper module shell, a lower module shell and a loudspeaker single body contained in the upper module shell and the lower module shell; the loudspeaker module is characterized by further comprising a sealing shell which is sleeved on the outer side of the loudspeaker monomer and fixedly connected with the module upper shell; wherein the content of the first and second substances,
a supporting table for fixing the loudspeaker units is arranged on the upper module shell, a positioning table arranged around the supporting table is arranged on the outer side of the supporting table, and the height of the positioning table is smaller than that of the supporting table;
the loudspeaker single body is fixed on the supporting table, the sealing shell is fixed on the positioning table, and the sealing shell and the loudspeaker single body form sealing;
and a side sound outlet is formed in the module upper shell, and a notch for avoiding the side sound outlet is formed in the side edge of the sealing shell corresponding to the side sound outlet.
2. The speaker module as recited in claim 1,
the sealing shell is fixedly connected with the positioning table in an adhesive or hot melting or ultrasonic mode.
3. The speaker module as recited in claim 2,
when the sealing shell is fixedly connected with the positioning table in an adhesive way,
and an accommodating groove for accommodating and fixing the glue of the sealing shell is arranged on the positioning table.
4. The speaker module as claimed in claim 2, wherein when the sealing case is fixedly connected to the positioning stage by heat-fusing,
the sealing shell is provided with a raised hot melting column, a molten glue groove is formed in the position, corresponding to the hot melting column, of the positioning table, and the hot melting column is melted and contained in the molten glue groove.
5. The speaker module as recited in claim 1, wherein the hermetic enclosure forming a hermetic seal with the speaker cell comprises:
a gap exists between the sealed shell and the loudspeaker single body;
and one end of the sealing shell, which is far away from the module upper shell, is provided with a glue injection groove with an inclined structure, and glue is injected into the gap through the glue injection groove to fill the gap, so that the sealing shell and the loudspeaker monomer form sealing.
6. The speaker module as claimed in claim 1, wherein the speaker unit includes a vibration system and a magnetic circuit system; wherein the content of the first and second substances,
the vibration system comprises a vibrating diaphragm and a voice coil which is fixedly adhered to one side of the vibrating diaphragm;
the magnetic circuit system comprises a magnetic yoke, a magnet and a washer which are sequentially accommodated in the magnetic yoke; the vibrating diaphragm comprises a fixed part, a ring-folded part and a reinforcing part which are sequentially arranged from outside to inside;
and one side of the fixing part, which is far away from the magnetic circuit system, is fixedly adhered to the support platform.
7. The speaker module of claim 1,
and a damping net is attached to the position, corresponding to the side sound outlet, of the module upper shell.
8. The speaker module as recited in claim 1,
the supporting platform and the positioning platform are of step-shaped structures.
9. The speaker module as recited in claim 1,
when the loudspeaker single bodies are fixedly adhered to the supporting platform, grooves for containing and fixing glue of the loudspeaker single bodies are formed in the supporting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270892.0A CN106941651B (en) | 2017-04-24 | 2017-04-24 | Loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270892.0A CN106941651B (en) | 2017-04-24 | 2017-04-24 | Loudspeaker module |
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| Publication Number | Publication Date |
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| CN106941651A CN106941651A (en) | 2017-07-11 |
| CN106941651B true CN106941651B (en) | 2023-04-07 |
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| CN201710270892.0A Active CN106941651B (en) | 2017-04-24 | 2017-04-24 | Loudspeaker module |
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| CN207184801U (en) * | 2017-08-30 | 2018-04-03 | 歌尔科技有限公司 | A kind of loudspeaker module |
| CN107820173B (en) * | 2017-11-20 | 2020-06-16 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure and method of assembling the same |
| CN108055613B (en) * | 2017-11-20 | 2019-11-19 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207665190U (en) | 2017-12-25 | 2018-07-27 | 歌尔科技有限公司 | Loud speaker module and electronic equipment |
| WO2020133093A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Speaker |
| CN110248295B (en) * | 2019-06-27 | 2021-02-19 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| WO2021000099A1 (en) * | 2019-06-29 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Speaker box |
| CN112468943B (en) * | 2019-09-06 | 2022-04-29 | 瑞声科技(新加坡)有限公司 | Loudspeaker structure and electronic equipment applying same |
| CN110933563B (en) * | 2019-11-22 | 2021-02-19 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| CN111182425A (en) * | 2019-12-31 | 2020-05-19 | Oppo广东移动通信有限公司 | Electronic device |
| CN112399314B (en) * | 2020-10-30 | 2022-04-22 | 歌尔股份有限公司 | Speaker module and electronic equipment |
| CN112399315B (en) * | 2020-10-30 | 2022-10-14 | 歌尔股份有限公司 | Speaker module and electronic equipment |
| CN113225416B (en) * | 2021-04-28 | 2023-03-21 | 青岛海信移动通信技术股份有限公司 | Mobile phone |
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