CN107820171B - Loudspeaker module - Google Patents
Loudspeaker module Download PDFInfo
- Publication number
- CN107820171B CN107820171B CN201711096387.5A CN201711096387A CN107820171B CN 107820171 B CN107820171 B CN 107820171B CN 201711096387 A CN201711096387 A CN 201711096387A CN 107820171 B CN107820171 B CN 107820171B
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- China
- Prior art keywords
- welding
- cover plate
- sound guide
- shell
- sound
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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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The side wall of the loudspeaker module shell is provided with a step part, one side of the first side wall close to the bottom wall is provided with a first welding part, the shell also comprises a second welding part extending from the first side wall to the bottom wall in an inclined way and a third welding part connecting the second welding part and the first welding part; a first welding rib which extends towards the shell and is in a closed ring shape is arranged at the position of the cover plate corresponding to the step part; second welding ribs extending towards the shell are arranged at positions, corresponding to the second welding part, the third welding part and the first welding part, on the cover plate; the second welding rib is connected with the first welding rib to form a closed annular structure. The structure can meet the LDS requirement which cannot be met by the conventional structure, and the side face of the sound outlet and the LDS face are ensured to be on the same cover plate; and through designing special welding muscle trend, keep apart preceding back chamber/front chamber and external simultaneously, need not to consider appearance problems such as beat and glue, and the sound channel lateral wall is not unpacked apart, does benefit to the performance uniformity.
Description
Technical Field
The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker module.
Background
With the advent of the mobile internet era, the electronic products are updated more and more rapidly, and people have higher and higher requirements on various aspects of performances of the electronic products, one of which is a high-quality music function.
The speaker module generally includes a housing and a cover enclosing an accommodating space, and a speaker unit accommodated in the accommodating space. The cover plate is fixed on the shell in a welding mode, a sound outlet channel which is positioned on the side face of the loudspeaker module and communicated with the accommodating space is usually arranged on the shell, the cover plate is of a flat plate-shaped structure and is covered on the top of the shell and the sound outlet channel, and welding ribs on the cover plate are positioned on the same plane and are arranged along the periphery of the cover plate. The cover plate is generally manufactured by LDS (Laser Direct Structuring). And some loudspeaker modules have LDS requirements for sound outlet channels due to installation reasons, and the existing structure and welding method cannot meet the LDS requirements.
Therefore, there is a need to provide a new speaker module to solve the above problems.
Disclosure of Invention
The invention provides a novel loudspeaker module to solve the technical problems, so as to meet the LDS requirements, and the specific scheme is as follows:
a loudspeaker module comprises a shell, a cover plate and a loudspeaker single body, wherein the cover plate and the shell enclose an accommodating space, the loudspeaker single body is accommodated in the accommodating space, the accommodating space is divided into a front cavity and a rear cavity by the loudspeaker single body, the shell comprises a bottom wall and a side wall formed by bending and extending the bottom wall, a step part is formed on the side wall in a concave mode towards the end part of the cover plate, the side wall comprises a first side wall with a sound outlet, and a first welding part is formed on one side, close to the bottom wall, of the first side wall;
the shell further comprises a second welding part extending from the first side wall towards the bottom wall in an inclined mode and a third welding part connecting the second welding part and the first welding part;
a first welding rib which extends towards the shell and is in a closed ring shape is arranged at the position, corresponding to the step part, on the cover plate;
second welding ribs extending towards the shell are arranged on the cover plate corresponding to the second welding part, the third welding part and the first welding part; the second welding rib is connected with the first welding rib to form a closed annular structure.
Preferably, the apron includes the main part, sets up be used for fixed speaker monomer's holding portion and certainly on the main part to the sound conduction portion that has the sound conduction passageway that the casing direction extends, sound conduction portion is for certainly the ante-chamber extends to the edge of main part, sound conduction passageway intercommunication the ante-chamber, the apron still is provided with and is located sound conduction portion both sides are connected the holding portion with the first inclined plane of main part, first inclined plane with second weld part butt.
Preferably, the cover plate is further provided with a first connecting surface connecting the first inclined surface and the accommodating portion, and the first connecting surface abuts against the third welding portion.
Preferably, the first weld bead is located on the body portion.
Preferably, the main body portion and the sound guide portion are integrally molded.
Preferably, the sound guide part comprises a bottom plate positioned on the main body part, a top plate opposite to the bottom plate, and a side plate connecting the bottom plate and the top plate, wherein the bottom plate, the top plate and the side plate together enclose the sound guide channel; the second welding rib is arranged on the first inclined plane, the first connecting surface and the top plate of the sound guide part.
Preferably, the accommodating portion includes an annular blocking wall and an accommodating space surrounded by the annular blocking wall, the annular blocking wall is connected to a ceiling of the sound guide portion, and the sound guide passage is communicated with the accommodating space.
Preferably, the sound guide portion further includes a side plate inserted in the sound guide channel and dividing the sound guide channel into at least two.
The position of the cover plate of the loudspeaker module corresponding to the step part is provided with a first welding rib which extends towards the shell and is in a closed ring shape; second welding ribs extending towards the shell are arranged on the cover plate corresponding to the second welding part, the third welding part and the first welding part; the second welding rib is connected with the first welding rib to form a closed annular structure. The structure designs a special welding rib trend, and simultaneously isolates a front cavity/a rear cavity from the outside; the front cavity and the outside do not need to be additionally provided with a glue coating process, appearance problems such as glue coating and the like do not need to be considered, and the side wall of the sound outlet channel is not disassembled, so that performance consistency is facilitated.
Drawings
FIG. 1 is an exploded view of a speaker module according to the present invention;
FIG. 2 is a schematic diagram of a cover plate structure of a speaker module according to the present invention;
FIG. 3 is a schematic view of a housing structure of a speaker module according to the present invention;
FIG. 4 is a cross-sectional view of a speaker module according to the present invention;
fig. 5 is a cross-sectional view of another angle of the speaker module of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a speaker module 100, which includes a housing 1, a cover plate 2 enclosing with the housing 1 to form an accommodation space, and a speaker unit 3 having a diaphragm 31 accommodated in the accommodation space. The speaker unit 3 divides the housing space into a front chamber 101 and a rear chamber 102.
Fig. 2 is a schematic structural diagram of a cover plate 2 of the speaker module of the present invention; fig. 3 is a schematic structural diagram of the housing 1 of the speaker module according to the present invention.
The housing 1 includes a sidewall 12 and a bottom wall 11 enclosing a receiving space, wherein the sidewall 12 is formed by bending and extending from the bottom wall 11. The bottom wall 11 is provided with a unit fixing hole 110 for fixing the speaker unit 3. The sidewall 12 is disposed around the cell fixing hole 110. The sidewall 12 is recessed toward the top of the cover plate 2 to form a step 121, and the step 121 is in a closed ring shape. The sidewall 12 includes a first sidewall 122, a second sidewall 123 disposed opposite the first sidewall 122, and a third sidewall 124 connecting the first sidewall 122 and the second sidewall 123. The first sidewall 122 is provided with a sound outlet 120. The top of the first sidewall 122 forms the step portion 121, and the bottom of the first sidewall 122 forms the first welding portion 15 opposite to the step portion 121. The housing 1 further includes a pair of second welding portions 13 formed by extending from the step portion 121 to the bottom wall 11, and in this embodiment, the second welding portions 13 are a slope structure. The pair of second welding portions 13 are respectively located on opposite sides of the sound outlet hole 120. The case 1 further includes a pair of third welding portions 14 connected to opposite end portions of the second welding portion 13 and the first welding portion 15, respectively.
The cover plate 2 specifically includes a main body portion 21, a housing portion 22 provided on the main body portion 21 for fixing the speaker unit 3, and a sound guide portion 23. The housing portion 22 includes an annular wall 222 formed by extending the body portion 21 in the direction toward the housing 1, and a housing space 221 surrounded by the annular wall 222, and the speaker unit 3 is housed in the housing space 221 and is fixed in contact with the annular wall 222. The sound guide portion 23 extends from the housing portion 22 toward the sound outlet 120 side of the housing 1, and the sound guide portion 23 has a sound guide passage 235 communicating the front chamber and the sound outlet 120.
A first welding rib 26 is formed in the body portion 21 at a position corresponding to the step portion 121 of the housing 1, and the first welding rib 26 is formed by extending the body portion 21 toward the housing 1. Accordingly, the first welding bead 26 forms a closed loop structure.
The sound guide 23 includes a bottom plate 231 located on the main body 21, a top plate 232 facing the bottom plate 231, and a side plate 233 connecting the bottom plate 231 and the top plate 232. The bottom plate 231, the top plate 232 and the side plates 233 together enclose a sound guiding channel 235 having two open ends. The sound guide channel 235 communicates with the accommodating space 221. Preferably, the sound guide 23 further includes a partition 234 inserted in the sound guide channel 235 and separating the sound guide channel into two. In alternative embodiments, the number of the partition plates 234 may be plural, and the sound guide portion 23 is divided into a plurality of sound guide channels 235. Correspondingly, the sound guide channels 235 are arranged in one-to-one correspondence with the sound outlet holes 120 arranged on the side wall 12 of the housing 1.
The cover plate 2 is further provided with first inclined surfaces 24 extending from the main body portion 21 on the side close to the sound outlet hole 120 toward the accommodating portion 22 on both sides of the sound guide portion 23, and first connection surfaces 27 connecting the first inclined surfaces 24 and the accommodating portion 22. The first connecting surface 27 is flush with the plane of the top plate 232. The cover plate 2 further includes a second welding rib 25 provided on the first inclined surface 24, the first connection surface 27, and the top plate 232 of the sound guide 23. The second welding rib 25 is formed by the lid plate 2 projecting toward the housing 1. The second welding rib 25 is connected to the first welding rib 26, and also forms a closed ring structure.
During assembly, the diaphragm 31 of the speaker unit 3 and the main body 21 of the cover plate 2 are spaced to form the front cavity 101, the sound guide channel 235 of the cover plate 2 communicates the front cavity 101 and the sound outlet 120, the top plate 232 abuts against the first welding part 15, and the rear cavity 102 is enclosed by the speaker unit 3, the bottom wall 11 of the housing 1, the second side wall 123 of the housing 1, the main body 21 of the cover plate 2, and the top plate 232.
In the present invention, the cover plate 2 and the housing 1 are fixed by welding, the first welding rib 26 of the main body portion 21 of the cover plate 2 is accommodated on the step portion 121 of the housing 1, and the fixing of the two is realized by the LDS technology and the accommodating space is formed so as to separate the accommodating space from the external environment. When the cover plate 2 is assembled with the housing 1, the sound guide part 23 of the cover plate 2 is abutted and fixed with the first side wall 122, so that the sound guide channel 235 in the sound guide part 23 is in butt joint communication with the sound outlet hole 120, and the front cavity is communicated with the outside through the sound outlet hole 120. Specifically, the top plate 232 of the sound guide portion 23 is accommodated between the two second inclined surfaces 13 and abuts against the first welding portion 15, the first inclined surfaces 24 on the two sides of the sound guide portion 23 abut against the second welding portion 13, the first connecting surface 27 is connected with the third welding portion 14, the second welding rib 25 of the cover plate 2 abuts against the first welding portion 13, the second welding portion 15 and the third welding portion 14, and the second welding rib 25 is hermetically fixed to the first welding portion 15, the second welding portion 13 and the third welding portion 14 by the LDS technology, so that the front cavity 101 is separated from the rear cavity 102.
The structure of the loudspeaker module can meet the LDS requirement which cannot be met by the conventional structure, and ensures that the side surface of the sound outlet and the LDS surface are on the same cover plate; and the front cavity/the rear cavity and the outside are isolated simultaneously by designing the special welding rib trend; the front cavity and the outside do not need to be additionally provided with a glue coating process, appearance problems such as glue coating and the like do not need to be considered, and the side wall of the sound outlet channel is not disassembled, so that performance consistency is facilitated.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are illustrative and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A loudspeaker module comprises a shell, a cover plate and a loudspeaker single body, wherein the cover plate and the shell enclose an accommodating space, the loudspeaker single body is accommodated in the accommodating space, and the accommodating space is divided into a front cavity and a rear cavity by the loudspeaker single body;
the shell further comprises a second welding part extending from the first side wall towards the bottom wall in an inclined mode and a third welding part connecting the second welding part and the first welding part;
a first welding rib which extends towards the shell and is in a closed ring shape is arranged at the position, corresponding to the step part, on the cover plate;
second welding ribs extending towards the shell are arranged on the cover plate corresponding to the second welding part, the third welding part and the first welding part; the second welding rib is connected with the first welding rib to form a closed annular structure;
the apron includes the main part, sets up be used for fixed speaker monomer portion of holding and certainly on the main part to the sound conduction portion that has the sound conduction passageway that the casing direction extends, sound conduction portion is for certainly the ante-chamber extends to the edge of main part, sound conduction passageway intercommunication the ante-chamber, the apron still is provided with and is located sound conduction portion both sides are connected the portion of holding with the first inclined plane of main part, first inclined plane with second butt weld part.
2. The speaker module as claimed in claim 1, wherein the cover plate is further provided with a first connecting surface connecting the first inclined surface and the receiving portion, and the first connecting surface abuts against the third soldering portion.
3. The speaker module as recited in claim 1, wherein the first weld bead is located on the main body portion.
4. The speaker module as claimed in claim 1, wherein the main body portion and the sound guide portion are integrally formed.
5. The speaker module as claimed in claim 2, wherein the sound guide portion comprises a bottom plate located on the main body portion, a top plate opposite to the bottom plate, and a side plate connecting the bottom plate and the top plate, the bottom plate, the top plate and the side plate together enclosing the sound guide channel; the second welding rib is arranged on the first inclined plane, the first connecting surface and the top plate of the sound guide part.
6. The speaker module as claimed in claim 5, wherein the receiving portion includes an annular blocking wall and a receiving space surrounded by the annular blocking wall, the annular blocking wall is connected to a ceiling of the sound guide portion, and the sound guide passage communicates with the receiving space.
7. The speaker module as claimed in claim 5, wherein the sound guide further comprises a side plate inserted into the sound guide channel and dividing the sound guide channel into at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096387.5A CN107820171B (en) | 2017-10-23 | 2017-10-23 | Loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096387.5A CN107820171B (en) | 2017-10-23 | 2017-10-23 | Loudspeaker module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107820171A CN107820171A (en) | 2018-03-20 |
| CN107820171B true CN107820171B (en) | 2020-02-18 |
Family
ID=61604127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096387.5A Active CN107820171B (en) | 2017-10-23 | 2017-10-23 | Loudspeaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107820171B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258070A1 (en) * | 2019-06-26 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
| CN112468911B (en) * | 2020-12-18 | 2022-05-31 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box and assembling process thereof |
| CN115623395B (en) * | 2022-08-01 | 2023-10-20 | 荣耀终端有限公司 | Speaker and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686550A (en) * | 2013-11-18 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker module group |
| CN206524954U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206533534U (en) * | 2017-01-24 | 2017-09-29 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
-
2017
- 2017-10-23 CN CN201711096387.5A patent/CN107820171B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686550A (en) * | 2013-11-18 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker module group |
| CN206524954U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206533534U (en) * | 2017-01-24 | 2017-09-29 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107820171A (en) | 2018-03-20 |
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