CN217825218U - Miniature speaker module - Google Patents
Miniature speaker module Download PDFInfo
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- CN217825218U CN217825218U CN202221037244.3U CN202221037244U CN217825218U CN 217825218 U CN217825218 U CN 217825218U CN 202221037244 U CN202221037244 U CN 202221037244U CN 217825218 U CN217825218 U CN 217825218U
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- front cover
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Abstract
The utility model discloses a micro loudspeaker module, which comprises an upper shell and a loudspeaker single body, wherein the upper shell is provided with a mounting groove, and the loudspeaker single body comprises a basin frame, a vibration system arranged on the basin frame and a front cover covering the vibration system; a limiting waistcoat for abutting against the front cover is arranged at the bottom of the mounting groove, so that a front sound cavity is formed between the vibration system and the bottom surface of the mounting groove; the contact surface of the front cover and the upper shell is provided with a sealing part which is arranged around the front sound cavity. This miniature speaker module simple structure, the processing assembly of being convenient for. Through set up the sealing around preceding sound chamber between protecgulum and epitheca for behind speaker monomer and the epitheca interference fit, the sealing receives the extrusion, thereby seals the installation gap between speaker monomer and the epitheca, and it permeates inside miniature speaker module to further prevent water from the clearance of protecgulum and epitheca.
Description
Technical Field
The utility model relates to an electric energy sound converter technical field especially relates to miniature speaker module.
Background
In the process of rapid development of portable devices such as mobile phones, people have increasingly strong requirements for product functionality. For a speaker module, not only is it required to be good in acoustic performance, but also it is required to have strong waterproof performance. The speaker module generally includes an upper housing, a lower housing assembled with the upper housing to form an accommodating space, and a speaker unit accommodated in the accommodating space, where the speaker unit and the upper housing enclose a front acoustic cavity, and the speaker unit, the lower housing and the upper housing together enclose a rear cavity. The prior art is fixed at the assembly face rubber coating of speaker monomer and casing often, realizes sealed waterproof simultaneously, nevertheless because beat the instability of gluey technology and glue layer and contact with water for a long time, leads to glue layer inefficacy easily, and the speaker module loses waterproof nature and the damage of intaking.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: a micro speaker module with a novel structure and high waterproof performance is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a micro loudspeaker module comprises an upper shell and a loudspeaker single body, wherein the upper shell is provided with an installation groove, and the loudspeaker single body comprises a basin frame, a vibration system arranged on the basin frame and a front cover covering the vibration system; a limiting waistcoat for abutting against the front cover is arranged at the bottom of the mounting groove, so that a front sound cavity is formed between the vibration system and the bottom surface of the mounting groove; the contact surface of the front cover and the upper shell is provided with a sealing part which is arranged around the front sound cavity.
Further, the cross section of the sealing part is rectangular, trapezoidal, circular arc or triangular.
Further, the number of the sealing parts is several.
Further, the outer surface of the front cover is provided with a receiving groove for receiving at least a partial region of the sealing portion.
Further, the upper case is provided with a receiving groove for receiving at least a partial region of the sealing portion.
Furthermore, the bottom surface of the front cover is combined with the limiting waistcoat in a sealing mode, and the sealing part is arranged on the bottom surface of the front cover.
Furthermore, the middle part of the bottom wall of the front cover is provided with a window corresponding to the vibration system, and at least one side edge of the sealing part is arranged in a collinear way with the inner edge or the outer edge of the bottom surface of the front cover.
Furthermore, the bottom surface of the front cover is combined with the limiting waistcoat in a sealing mode, and the sealing part is arranged on the limiting waistcoat.
Furthermore, the outer side surface of the front cover is hermetically combined with the inner side surface of the upper shell, and the sealing part is arranged on the inner side surface of the upper shell.
Furthermore, the sealing part is arranged at the joint of the inner side surface and the bottom surface of the upper shell.
The beneficial effects of the utility model reside in that: the miniature loudspeaker module is simple in structure and convenient to process and assemble. Through set up the sealing around preceding sound chamber between protecgulum and epitheca for behind speaker monomer and the epitheca interference fit, the sealing receives the extrusion, thereby seals the installation gap between speaker monomer and the epitheca, prevents further that water from permeating to inside the miniature speaker module from the clearance of protecgulum and epitheca.
Drawings
Fig. 1 is an exploded view of a micro speaker module according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a speaker unit in a micro speaker module according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of a speaker unit in a micro speaker module according to a first embodiment of the present invention;
FIG. 4 is an enlarged detail view of portion A of FIG. 3;
fig. 5 is a cross-sectional view of a micro speaker module according to a second embodiment of the present invention;
FIG. 6 is an enlarged detail view of portion B of FIG. 5;
fig. 7 is a schematic view of a part of a speaker unit in a micro speaker module according to a third embodiment of the present invention;
fig. 8 is a schematic view of a part of a speaker unit in a micro speaker module according to a fourth embodiment of the present invention;
fig. 9 is a schematic view of a part of a speaker unit in a micro speaker module according to a fifth embodiment of the present invention;
fig. 10 is a schematic partial structural view of a speaker unit in a micro speaker module according to a sixth embodiment of the present invention;
fig. 11 is a schematic view of a part of a micro speaker module according to a seventh embodiment of the present invention;
fig. 12 is a schematic view of a part of a micro speaker module according to an eighth embodiment of the present invention;
fig. 13 is a schematic partial structural view of a micro speaker module according to a ninth embodiment of the present invention;
fig. 14 is a schematic partial structural view of a micro speaker module according to the tenth embodiment of the present invention;
fig. 15 is a schematic partial structural view of a micro speaker module according to an eleventh embodiment of the present invention.
Description of reference numerals:
1. an upper shell; 11. mounting grooves; 12. limiting waistcoats;
2. a speaker unit; 21. a basin stand; 22. a vibration system; 23. a front cover; 231. a window;
3. a sealing part;
4. accommodating a tank;
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 15, a micro speaker module includes an upper case 1 and a speaker unit 2, the upper case 1 is provided with a mounting groove 11, and the speaker unit 2 includes a frame 21, a vibration system 22 disposed on the frame 21, and a front cover 23 covering the vibration system 22; the bottom of the mounting groove 11 is provided with a limiting waistcoat 12 for abutting against a front cover 23, so that a front sound cavity is formed between the vibration system 22 and the bottom surface of the mounting groove 11; the contact surface of the front cover 23 and the upper shell 1 is provided with a sealing part 3, and the sealing part 3 is arranged around the front sound cavity.
From the above description, the beneficial effects of the utility model reside in that: this miniature speaker module simple structure, the processing assembly of being convenient for. Through set up the sealing 3 around the preceding sound chamber between protecgulum 23 and epitheca 1 for behind speaker monomer 2 and the interference fit of epitheca 1, sealing 3 receives the extrusion, thereby seals the installation gap between speaker monomer 2 and the epitheca 1, prevents further that water from permeating inside the miniature speaker module from the clearance of protecgulum 23 and epitheca 1.
Further, the cross section of the sealing part 3 is rectangular, trapezoidal, circular arc or triangular.
As can be seen from the above description, the shape of the sealing portion 3 can be selected according to the use requirements or the design requirements.
Further, the number of the sealing parts 3 is several.
As can be seen from the above description, the provision of the plurality of sealing portions 3 can further enhance the sealing and waterproof effects of the micro-speaker module.
Further, the outer surface of the front cover 23 is provided with a receiving groove 4 for receiving at least a partial area of the sealing portion 3.
Further, the upper shell 1 is provided with a receiving groove 4 for receiving at least a partial area of the sealing portion 3.
As is apparent from the above description, the accommodation groove 4 can be used to position the sealing part 3 at the time of mounting while preventing the thickness of the sealing part 3 from being excessively large to adversely affect the assembling accuracy between the speaker unit 2 and the upper case 1.
Furthermore, the bottom surface of the front cover 23 is in sealing combination with the limiting waistcoat 12, and the sealing part 3 is arranged on the bottom surface of the front cover 23.
Further, a window 231 is formed in the middle of the bottom wall of the front cover 23 corresponding to the vibration system 22, and at least one side of the sealing portion 3 is arranged in a collinear manner with the inner edge or the outer edge of the bottom surface of the front cover 23.
As can be seen from the above description, the window 231 is disposed on the front cover 23 to facilitate the formation of a front acoustic cavity between the diaphragm of the vibration system 22 and the bottom surface of the mounting groove 11; the side edge of the sealing part 3 and the inner edge or the outer edge of the bottom surface of the front cover 23 are arranged in a collinear manner, which is beneficial to the processing and the production of a forming die of the front cover 23.
Further, the bottom surface of the front cover 23 is hermetically combined with the limiting waistcoat 12, and the sealing part 3 is arranged on the limiting waistcoat 12.
Further, the outer side surface of the front cover 23 is hermetically combined with the inner side surface of the upper casing 1, and the sealing part 3 is disposed on the inner side surface of the upper casing 1.
Further, the sealing part 3 is arranged at the joint of the inner side surface and the bottom surface of the upper shell 1.
As can be seen from the above description, the sealing part 3 is disposed at the joint of the inner side surface and the bottom surface of the upper case 1, so that the assembling position of the sealing part 3 is conveniently determined, which is beneficial to improving the assembling efficiency of the sealing part 3.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a miniature loudspeaker module can be widely applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and intelligent watches to be used as an audio playing component.
The micro loudspeaker module comprises an upper shell 1 and a loudspeaker single body 2, wherein the upper shell 1 is provided with an installation groove 11, and the loudspeaker single body 2 comprises a basin frame 21, a vibration system 22 arranged on the basin frame 21 and a front cover 23 covering the vibration system 22; the bottom of the mounting groove 11 is provided with a limiting waistcoat 12 for abutting against a front cover 23, so that a front sound cavity is formed between the vibration system 22 and the bottom surface of the mounting groove 11; the contact surface of the front cover 23 and the upper shell 1 is provided with a sealing part 3, and the sealing part 3 is arranged around the front sound cavity. The bottom surface of the front cover 23 is combined with the limiting waistcoat 12 in a sealing way, and the sealing part 3 is arranged on the bottom surface of the front cover 23.
In particular, the front cover 23 serves to protect the diaphragm from being bumped or squeezed. The micro loudspeaker module also comprises a lower shell and a flexible circuit board, wherein the lower shell is combined with the upper shell 1 to seal the bottom opening of the mounting groove 11; the loudspeaker single body 2, the lower shell and the upper shell 1 enclose a rear sound cavity together. Still be equipped with the support piece that is used for the buffering between inferior valve and the speaker monomer 2, the preferred cotton material of bubble of support piece. The lower case may be provided as a separate part, or when the micro speaker module is installed in a thin device such as a mobile phone, the housing of the device such as the mobile phone may be used in cooperation with the upper case 1 as the lower case of the micro speaker module. One end of the flexible circuit board is connected with the single loudspeaker body 2, and the other end of the flexible circuit board extends out of the mounting groove 11, so that the single loudspeaker body 2 is conducted with an external circuit. A sound outlet channel communicated with the front sound cavity and the outside is further arranged in the mounting groove 11. In this embodiment, one sealing portion 3 is provided, and the sealing portion 3 is adhesively connected to the front cover 23, or the sealing portion 3 and the front cover 23 are integrally formed by a two-shot molding process. The sealing portion 3 may be made of plastic, rubber or silicone.
As shown in fig. 4, the cross section of the sealing portion 3 has a rectangular, trapezoidal, circular arc or triangular shape. Specifically, in the present embodiment, the cross section of the sealing portion 3 is rectangular.
Example two
Referring to fig. 5 and fig. 6, the second embodiment of the present invention is a further improvement of the upper case 1 on the basis of the first embodiment, and the difference from the first embodiment is that: the upper shell 1 is provided with a receiving groove 4 for receiving at least a partial region of the sealing portion 3. Specifically, the shape of the receiving groove 4 is adapted to the shape of the sealing portion 3, and in the present embodiment, the cross section of the receiving groove 4 is set to be rectangular corresponding to the cross section of the sealing portion 3. In other embodiments, the cross section of the sealing portion 3 can be trapezoidal, circular arc or triangular, and the shape of the receiving groove 4 is modified correspondingly to the sealing portion 3.
EXAMPLE III
Referring to fig. 7, a third embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the first embodiment, and is different from the first embodiment in that: the cross section of the sealing part 3 is arc-shaped.
Example four
Referring to fig. 8, a fourth embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the first embodiment, and is different from the first embodiment in that: the middle of the bottom wall of the front cover 23 is provided with a window 231 corresponding to the vibration system 22, and the side edge of at least one sealing part 3 is arranged in a collinear way with the inner edge of the bottom surface of the front cover 23. Specifically, in the present embodiment, the cross section of the sealing portion 3 is rectangular, and the inner circumferential surface of the sealing portion 3 is coplanar with the inner circumferential surface of the window 231.
EXAMPLE five
Referring to fig. 9, a fifth embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the fourth embodiment, and is different from the fourth embodiment in that: the number of the sealing parts 3 is several. Specifically, in the present embodiment, the number of the sealing portions 3 is two, two sealing portions 3 are provided on the bottom surface of the front cover 23, and the inner circumferential surface of one of the sealing portions 3 is disposed coplanar with the inner circumferential surface of the window 231 of the front cover 23. In other embodiments, the sealing portion 3 may be provided with one, three, or more.
Example six
Referring to fig. 10, a sixth embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the first embodiment, and is different from the first embodiment in that: the middle of the bottom wall of the front cover 23 is provided with a window 231 corresponding to the vibration system 22, and the side edge of at least one sealing part 3 is arranged in line with the outer edge of the bottom surface of the front cover 23. Specifically, in the present embodiment, the cross section of the sealing portion 3 is rectangular, and the outer peripheral surface of the sealing portion 3 is flush with the outer peripheral surface of the front cover 23.
EXAMPLE seven
Referring to fig. 11, a seventh embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the first embodiment, and is different from the first embodiment in that: the bottom surface of the front cover 23 is combined with the limiting waistcoat 12 in a sealing way, and the sealing part 3 is arranged on the limiting waistcoat 12. Specifically, in this embodiment, one sealing portion 3 is provided, and the sealing portion 3 is adhesively connected to the bottom surface of the mounting groove 11, or the sealing portion 3 and the upper case 1 are integrally formed through a two-color injection molding process. The sealing portion 3 may be made of plastic, rubber or silicone.
Example eight
Referring to fig. 12, an eighth embodiment of the present invention is a further improvement on the front cover 23 on the basis of the seventh embodiment, and is different from the seventh embodiment in that: the outer surface of the front cover 23 is provided with a receiving groove 4 for receiving at least a partial area of the sealing portion 3. Specifically, the shape of the receiving groove 4 is adapted to the shape of the sealing part 3, and in the present embodiment, the cross section of the receiving groove 4 is set to be rectangular corresponding to the cross section of the sealing part 3. In other embodiments, the cross section of the sealing portion 3 can be trapezoidal, circular arc or triangular, and the shape of the receiving groove 4 is modified correspondingly to the sealing portion 3.
Example nine
Referring to fig. 13, a ninth embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the eighth embodiment, and is different from the eighth embodiment in that: the cross section of the sealing part 3 is in a circular arc shape. The cross section of the housing groove 4 is formed in a circular arc shape corresponding to the shape of the seal portion 3.
Example ten
Referring to fig. 14, a tenth embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the eighth embodiment, and is different from the eighth embodiment in that: the number of the sealing parts 3 is several. Specifically, in this embodiment, the number of the sealing portions 3 is two, and both the sealing portions 3 are disposed on the bottom surface of the mounting groove 11. The sealing parts 3 and the accommodating grooves 4 are arranged in one-to-one correspondence. In other embodiments, the sealing portion 3 may be provided with one, three, or more.
EXAMPLE eleven
Referring to fig. 15, an eleventh embodiment of the present invention is a further improvement of the sealing portion 3 on the basis of the seventh embodiment, and is different from the seventh embodiment in that: the outer side surface of the front cover 23 is hermetically combined with the inner side surface of the upper shell 1, and the sealing part 3 is arranged on the inner side surface of the upper shell 1. The sealing part 3 is arranged at the joint of the inner side surface and the bottom surface of the upper shell 1. Specifically, in the present embodiment, the cross section of the sealing portion 3 is rectangular, the outer peripheral surface of the sealing portion 3 is attached to the inner peripheral surface of the mounting groove 11, and the bottom surface of the sealing portion 3 is attached to the bottom surface of the mounting groove 11.
To sum up, the utility model provides a miniature speaker module simple structure, the processing assembly of being convenient for. Through set up the sealing around preceding sound chamber between protecgulum and epitheca for behind speaker monomer and the epitheca interference fit, the sealing receives the extrusion, thereby seals the installation gap between speaker monomer and the epitheca, and it permeates inside miniature speaker module to further prevent water from the clearance of protecgulum and epitheca. The holding tank can be used for fixing a sealing part when being installed, and simultaneously prevents the thickness of the sealing part from being overlarge to cause adverse effects on the assembling precision between the loudspeaker monomer and the upper shell. The window arranged on the front cover is beneficial to forming a front sound cavity between a vibrating diaphragm of the vibrating system and the bottom surface of the mounting groove; the side edge of the sealing part and the inner edge or the outer edge of the bottom surface of the front cover are arranged in a collinear manner, so that the processing and the production of the forming die of the front cover are facilitated.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and 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 (10)
1. A micro loudspeaker module comprises an upper shell and a loudspeaker single body, wherein the upper shell is provided with an installation groove, and the loudspeaker single body comprises a basin frame, a vibration system arranged on the basin frame and a front cover covering the vibration system; a limiting waistcoat for abutting against the front cover is arranged at the bottom of the mounting groove, so that a front sound cavity is formed between the vibration system and the bottom surface of the mounting groove; the method is characterized in that: the contact surface of the front cover and the upper shell is provided with a sealing part which is arranged around the front sound cavity.
2. The micro-speaker module of claim 1, wherein: the cross section of the sealing part is rectangular, trapezoidal, circular arc or triangular.
3. The micro-speaker module of claim 2, wherein: the number of the sealing parts is several.
4. The micro-speaker module of claim 3, wherein: the outer surface of the front cover is provided with a receiving groove for receiving at least a partial region of the sealing portion.
5. The micro-speaker module of claim 3, wherein: the upper shell is provided with a receiving groove for receiving at least a partial area of the sealing part.
6. The micro-speaker module of claim 3, wherein: the bottom surface of the front cover is combined with the limiting waistcoat in a sealing mode, and the sealing part is arranged on the bottom surface of the front cover.
7. The micro-speaker module as recited in claim 6, wherein: the middle of the bottom wall of the front cover corresponds to the vibration system and is provided with a window, and the side edge of at least one sealing part is collinearly arranged with the inner edge or the outer edge of the bottom surface of the front cover.
8. The micro-speaker module of claim 3, wherein: the bottom surface of the front cover is combined with the limiting waistcoat in a sealing mode, and the sealing part is arranged on the limiting waistcoat.
9. The micro-speaker module of claim 3, wherein: the outer side surface of the front cover is in sealing combination with the inner side surface of the upper shell, and the sealing part is arranged on the inner side surface of the upper shell.
10. The micro-speaker module of claim 9, wherein: the sealing part is arranged at the joint of the inner side surface and the bottom surface of the upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037244.3U CN217825218U (en) | 2022-04-29 | 2022-04-29 | Miniature speaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037244.3U CN217825218U (en) | 2022-04-29 | 2022-04-29 | Miniature speaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217825218U true CN217825218U (en) | 2022-11-15 |
Family
ID=83981012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221037244.3U Active CN217825218U (en) | 2022-04-29 | 2022-04-29 | Miniature speaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217825218U (en) |
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2022
- 2022-04-29 CN CN202221037244.3U patent/CN217825218U/en active Active
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