CN213126462U - Loudspeaker and electronic terminal - Google Patents
Loudspeaker and electronic terminal Download PDFInfo
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- CN213126462U CN213126462U CN202022142544.5U CN202022142544U CN213126462U CN 213126462 U CN213126462 U CN 213126462U CN 202022142544 U CN202022142544 U CN 202022142544U CN 213126462 U CN213126462 U CN 213126462U
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- magnetic
- magnetic yoke
- yoke
- pole core
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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
- H04R9/02—Details
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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
Abstract
The utility model provides a loudspeaker and an electronic terminal, which comprises a first sounding monomer and a second sounding monomer horizontally arranged on the same horizontal plane with the first sounding monomer; the first sounding unit comprises a first magnetic circuit system and a first vibration system fixed on the first magnetic circuit system, and the second sounding unit comprises a second magnetic circuit system and a second vibration system; the first magnetic circuit system comprises a first magnetic yoke, the second magnetic circuit system comprises a second magnetic yoke arranged in parallel with the first magnetic yoke, and the first magnetic yoke and the second magnetic yoke are integrally formed. The acoustic performance of the speaker in this embodiment can be improved through two sound production monomers, through placing first sound production monomer and second sound production monomer on same horizontal plane, can make the thickness attenuation of the speaker in this embodiment to can adapt to the more and more thin development trend of mobile terminal's thickness, through setting up first yoke and second yoke integrated into one piece, can be connected first sound production monomer and second sound production monomer and form a whole.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic field especially relates to a speaker and electronic terminal.
[ background of the invention ]
In the current era of mobile internet, the number of mobile terminal devices is increasing, and the requirements for mobile terminals are also increasing, one of which is that the thickness of mobile terminals is becoming thinner.
In order to improve the acoustic performance of the related art, the structure of the speaker in the related art is often too complex and too thick, so that the speaker cannot adapt to the development trend that the thickness of the mobile terminal is thinner and thinner.
Therefore, it is necessary to provide a new speaker and an electronic terminal to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a speaker and electron terminal, the thickness of this speaker is little, and acoustic performance is good.
The technical scheme of the utility model as follows: a loudspeaker comprises a first sound generating unit and a second sound generating unit, wherein the second sound generating unit is horizontally arranged on the same horizontal plane with the first sound generating unit;
the first sounding unit comprises a first magnetic circuit system and a first vibration system fixed on the first magnetic circuit system, and the second sounding unit comprises a second magnetic circuit system and a second vibration system fixed on the second magnetic circuit system;
the first magnetic circuit system comprises a first magnetic yoke, the second magnetic circuit system comprises a second magnetic yoke arranged in parallel with the first magnetic yoke, and the first magnetic yoke and the second magnetic yoke are integrally formed.
As an embodiment of the present invention, the first magnetic circuit system further includes a first main magnetic steel disposed in the center of the first magnetic yoke, a first auxiliary magnetic steel disposed on the first magnetic yoke and surrounding the first main magnetic steel to form a first magnetic gap, a first main pole core attached above the first main magnetic steel, and a first auxiliary pole core surrounding the first main pole core and attached on the first auxiliary magnetic steel;
the second magnetic circuit system further comprises a second main magnetic steel arranged at the center of the second magnetic yoke, a second auxiliary magnetic steel arranged on the second magnetic yoke and surrounding the second main magnetic steel to form a second magnetic gap, a second main pole core attached above the second main magnetic steel and a second auxiliary pole core surrounding the second main pole core and attached to the second auxiliary magnetic steel.
As an embodiment of the present invention, the first auxiliary pole piece includes a first pole core portion surrounding the first main pole piece and attached to the first auxiliary magnetic steel, a first frame portion extending from an outer peripheral edge of the first pole core portion toward a direction away from the second yoke, and a plurality of first support portions extending from an outer peripheral edge of the first pole core portion toward the first yoke, the first vibration system is fixed to the first frame portion, the first support portions abut against the first yoke, and the first main magnetic steel and the first main pole piece have peripheries abutting against the plurality of first support portions;
the second auxiliary pole core comprises a second pole core portion surrounding the second main pole core and attached to the second auxiliary magnetic steel, a second support portion and a plurality of second support portions, the second support portion is formed by extending the outer peripheral edge of the second pole core portion towards the second vibration system, the second support portions are formed by extending the outer peripheral edge of the second pole core portion towards the direction far away from the second magnetic yoke, the second vibration system is fixed on the second support portion, the second support portions are abutted to the second magnetic yoke, and the second main magnetic steel and the periphery of the second main pole core are abutted to the second support portions.
As an embodiment of the present invention, the first vibration system includes a first diaphragm for vibrating and sounding and a first voice coil for driving the first diaphragm to vibrate and sounding, the first voice coil is suspended in the first magnetic gap, and the first diaphragm is fixed on the first support portion;
the second vibration system comprises a second vibrating diaphragm used for vibrating and sounding and a second voice coil used for driving the second vibrating diaphragm to vibrate and sound, the second voice coil is suspended in the second magnetic gap, and the second vibrating diaphragm is fixed on the second support part.
As an embodiment of the present invention, the first diaphragm includes a first flange portion, a first fixing portion extending from an outer periphery of the first flange portion, and a first dome portion extending from an inner periphery of the first flange portion, the first fixing portion is fixed to the first bracket portion, and the first dome portion abuts against the first voice coil;
the second diaphragm comprises a second flange part, a second fixing part and a second ball top, the second fixing part is formed by extending the outer periphery of the second flange part, the second ball top is formed by extending the inner periphery of the second flange part, the second fixing part is fixed on the second support part, and the second ball top is abutted to the second diaphragm.
As an embodiment of the utility model, first yoke is flat, the second yoke is flat, be on a parallel with in the direction of first yoke, first yoke with the second yoke sets up side by side.
As an embodiment of the utility model, the speaker still includes the connecting plate, first yoke with the second yoke is at the perpendicular to the interval sets up in the direction of first yoke, the one end of connecting plate is fixed in first yoke is close to on the one end of second yoke, the other end of connecting plate is fixed in the second yoke is close to one of first yoke is served, first vibration system establishes first yoke orientation on one side of second yoke, second vibration system establishes the second yoke orientation on one side of first yoke.
As an embodiment of the utility model, the connecting plate is perpendicular to respectively first yoke with the second yoke, the connecting plate clamp is located first sound production monomer with between the second sound production monomer.
As an embodiment of the utility model, first yoke the connecting plate and second yoke integrated into one piece sets up.
As an embodiment of the present invention, the first magnetic yoke and the second magnetic yoke are arranged on the same horizontal plane, the first vibration system and the second vibration system are located on the same side of the first magnetic yoke and the second magnetic yoke.
The technical scheme of the utility model an electron terminal is still provided, including terminal body and as above arbitrary embodiment the speaker, the speaker sets up on the terminal body.
The beneficial effects of the utility model reside in that: the speaker in this embodiment includes first sound production monomer and second sound production monomer, can improve the acoustic performance of the speaker in this embodiment through two sound production monomers, through placing first sound production monomer and second sound production monomer on same horizontal plane, can make the thickness attenuation of the speaker in this embodiment, thereby can adapt to the more and more thin development trend of mobile terminal's thickness, through setting up first yoke and second yoke integrated into one piece, can be connected first sound production monomer and second sound production monomer and form a whole, make the structure more compact.
[ description of the drawings ]
Fig. 1 is a schematic overall structure diagram of a speaker according to an embodiment of the present invention;
FIG. 2 is an exploded view of the sound emitting assembly of FIG. 1;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;
fig. 4 is a schematic view of an overall structure of an electronic terminal according to an embodiment of the present invention.
[ detailed description ] embodiments
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 3, an embodiment of the present invention provides a speaker 1, in which the speaker 1 includes a first sound generating unit 10 and a second sound generating unit 20 horizontally disposed on the same horizontal plane as the first sound generating unit 10; the acoustic performance of the loudspeaker 1 in the embodiment can be improved through the two sound generating monomers, the first sound generating monomer 10 and the second sound generating monomer 20 are placed on the same horizontal plane, namely the first sound generating monomer and the second sound generating monomer 20 are placed in parallel, the thickness of the loudspeaker 1 in the embodiment can be thinned, and the development trend that the thickness of the mobile terminal is thinner and thinner can be adapted.
Preferably, the first sound generating unit 10 and the second sound generating unit 20 have the same structure and size, and further, the thicknesses of the first sound generating unit 10 and the second sound generating unit 20 are the same, and when the first sound generating unit 10 and the second sound generating unit 20 are arranged in parallel, the thickness of the speaker 1 in this embodiment is the thickness of the first sound generating unit 10 or the second sound generating unit 20, so that the thickness of the speaker 1 in this embodiment is reduced.
Referring to fig. 2 and fig. 3, the first sound generating unit 10 in this embodiment includes a first magnetic circuit system 11 and a first vibration system 12 fixed on the first magnetic circuit system 11, and the second sound generating unit 20 includes a second magnetic circuit system 21 and a second vibration system 22 fixed on the second magnetic circuit, where the first magnetic circuit system 11 is used for driving the first vibration system 12 to generate sound in a vibration mode, and the second magnetic circuit system 21 is used for driving the second vibration system 22 to generate sound in a vibration mode.
Referring to fig. 2 and 3, the first magnetic circuit system 11 of the present embodiment includes a first magnetic yoke 111, the second magnetic circuit system 21 includes a second magnetic yoke 211 disposed parallel to the first magnetic yoke 111, and the first magnetic yoke 111 and the second magnetic yoke 211 are integrally formed. Since the first yoke 111 and the second yoke 211 are integrally formed in this embodiment, the first sound generating unit 10 and the second sound generating unit 20 can be integrally connected, so that the structure is more compact.
Preferably, the first yoke 111 has a flat plate shape, the second yoke 211 has a flat plate shape, and the first yoke 111 and the second yoke 211 are arranged in parallel in a direction parallel to the first yoke 111.
Referring to fig. 2 and 3, in an embodiment, the first magnetic circuit system 11 further includes a first main magnetic steel 112 disposed in the center of the first magnetic yoke 111, a first sub magnetic steel 114 disposed on the first magnetic yoke 111 and surrounding the first main magnetic steel 112 to form a first magnetic gap 113, a first main pole core 115 attached above the first main magnetic steel 112, and a first sub pole core 116 surrounding the first main pole core 115 and attached on the first sub magnetic steel 114.
Referring to fig. 2 and 3, preferably, the first auxiliary pole piece 116 includes a first pole piece portion 1161 surrounding the first main pole piece 115 and attached to the first auxiliary magnetic steel 114, a first support portion 1162 formed by extending from an outer peripheral edge of the first pole piece portion 1161 in a direction away from the first magnetic yoke 111, and a plurality of first support portions 1163 formed by extending from an outer peripheral edge of the first pole piece portion 1161 toward the first magnetic yoke 111, the first vibration system 12 is fixed to the first support portion 1162, and the first support portions 1163 abut against the first magnetic yoke 111. In this embodiment, the first auxiliary pole piece 116 is designed according to the above structure, the first pole piece portion 1161 is disposed corresponding to the first main pole piece 115, and the first support portion 1162 supports the first vibration system 12, so that the structure of the sound generating assembly in this embodiment is simpler.
Preferably, the first shelf portion 1162 is annular.
Referring to fig. 2 and 3, preferably, the peripheries of the first main magnetic steel 112 and the first main pole core 115 abut against the first supporting portions 1163.
Referring to fig. 2 and fig. 3, in an embodiment, the first vibration system 12 includes a first diaphragm 121 for vibrating and generating sound and a first voice coil 122 for driving the first diaphragm 121 to vibrate and generate sound, the first voice coil 122 is suspended in the first magnetic gap 113, and the first diaphragm 121 is fixed on the first support portion 1162.
Referring to fig. 2 and 3, preferably, the first diaphragm 121 includes a first ring portion 1211, a first fixing portion 1212 extending from an outer periphery of the first ring portion 1211, and a first dome portion 1213 extending from an inner periphery of the first ring portion 1211, where the first fixing portion 1212 is fixed on the first frame portion 1162, and the first dome portion 1213 abuts against the first voice coil 122.
Referring to fig. 2 and 3, in an embodiment, the second magnetic circuit system 21 further includes a second main magnetic steel 212 disposed in the center of the second magnetic yoke 211, a second sub-magnetic steel 214 disposed on the second magnetic yoke 211 and surrounding the second main magnetic steel 212 to form a second magnetic gap 213, a second main pole core 215 attached above the second main magnetic steel 212, and a second sub-pole core 216 surrounding the second main pole core 215 and attached on the second sub-magnetic steel 214.
Referring to fig. 2 and 3, preferably, the second auxiliary pole core 216 includes a second pole core portion 2161 surrounding the second main pole core 215 and attached to the second auxiliary magnetic steel 214, a second bracket portion 2162 formed by extending from an outer peripheral edge of the second pole core portion 2161 in a direction away from the second magnetic yoke 211, and a plurality of second support portions 2163 formed by extending from an outer peripheral edge of the second pole core portion 2161 toward the second magnetic yoke 211, the second vibration system 22 is fixed to the second bracket portion 2162, and the second support portions 2163 abut against the second magnetic yoke 211. In this embodiment, the second auxiliary pole core 216 is designed according to the above structure, the second pole core portion 2161 is disposed corresponding to the second main pole core 215, and the second support portion 2162 supports the second vibration system 22, so that the structure of the sound generating assembly in this embodiment is simpler.
Preferably, the second bracket portion 2162 is annular.
Referring to fig. 2 and 3, preferably, the peripheries of the second main magnetic steel 212 and the second main pole core 215 abut against the second supporting portions 2163.
Referring to fig. 2 and fig. 3, in an embodiment, the second vibration system 22 includes a second diaphragm 221 for vibrating and generating sound and a second voice coil 222 for driving the second diaphragm 221 to vibrate and generate sound, the second voice coil 222 is suspended in the second magnetic gap 213, and the second diaphragm 221 is fixed on the second bracket portion 2162.
Referring to fig. 2 and 3, preferably, the second diaphragm 221 includes a second flange portion 2211, a second fixing portion 2212 formed by extending from an outer periphery of the second flange portion 2211, and a second dome portion 2213 formed by extending from an inner periphery of the second flange portion 2211, the second fixing portion 2212 is fixed to the second bracket portion 2162, and the second dome portion 2213 abuts against the second voice coil 222.
Referring to fig. 1-3, in an embodiment, the speaker 1 further includes a connecting plate 30, the first magnetic yoke 111 and the second magnetic yoke 211 are disposed at an interval in a direction perpendicular to the first magnetic yoke 111, one end of the connecting plate 30 is fixed to an end of the first magnetic yoke 111 close to the second magnetic yoke 211, another end of the connecting plate 30 is fixed to an end of the second magnetic yoke 211 close to the first magnetic yoke 111, the first vibration system 12 is disposed on a side of the first magnetic yoke 111 facing the second magnetic yoke 211, and the second vibration system 22 is disposed on a side of the second magnetic yoke 211 facing the first magnetic yoke 111.
Specifically, the first support parts 1163 abut on a side of the first yoke 111 facing the second yoke 211, and the second support parts 2163 abut on a side of the second yoke 211 facing the first yoke 111.
In one embodiment, the connecting plate 30 is perpendicular to the first and second yokes 111 and 211, respectively, and the connecting plate 30 is sandwiched between the first and second sound-generating units 10 and 20.
Specifically, the first yoke 111, the connecting plate 30, and the second yoke 211 are integrally formed.
In another embodiment, the first magnetic yoke 111 and the second magnetic yoke 211 are disposed on the same horizontal plane, and the first vibration system 12 and the second vibration system 22 are located on the same side of the first magnetic yoke 111 and the second magnetic yoke 211.
Preferably, one end of the first yoke 111 is coupled to one end of the second yoke 211 and forms a rectangular plate.
Please refer to fig. 4, an embodiment of the present invention further provides an electronic terminal, in this embodiment, the electronic terminal includes a terminal body 4 and a speaker 1 as in the above embodiment, the speaker 1 is disposed on the terminal body 4, because the speaker 1 in the above embodiment includes a first sound generating unit 10 and a second sound generating unit 20, the acoustic performance of the speaker 1 in this embodiment can be improved by two sound generating units, and in addition, the thickness of the speaker 1 in this embodiment can be thinned by placing the first sound generating unit 10 and the second sound generating unit 20 on the same horizontal plane, so as to adapt to the development trend that the thickness of the mobile terminal is thinner and thinner.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (11)
1. A loudspeaker, characterized by: the sound generating device comprises a first sound generating monomer and a second sound generating monomer which is horizontally arranged on the same horizontal plane with the first sound generating monomer;
the first sounding unit comprises a first magnetic circuit system and a first vibration system fixed on the first magnetic circuit system, and the second sounding unit comprises a second magnetic circuit system and a second vibration system fixed on the second magnetic circuit system;
the first magnetic circuit system comprises a first magnetic yoke, the second magnetic circuit system comprises a second magnetic yoke arranged in parallel with the first magnetic yoke, and the first magnetic yoke and the second magnetic yoke are integrally formed.
2. The loudspeaker of claim 1, wherein: the first magnetic circuit system also comprises a first main magnetic steel arranged in the center of the first magnetic yoke, a first auxiliary magnetic steel arranged on the first magnetic yoke and surrounding the first main magnetic steel to form a first magnetic gap, a first main pole core attached above the first main magnetic steel and a first auxiliary pole core surrounding the first main pole core and attached to the first auxiliary magnetic steel;
the second magnetic circuit system further comprises a second main magnetic steel arranged at the center of the second magnetic yoke, a second auxiliary magnetic steel arranged on the second magnetic yoke and surrounding the second main magnetic steel to form a second magnetic gap, a second main pole core attached above the second main magnetic steel and a second auxiliary pole core surrounding the second main pole core and attached to the second auxiliary magnetic steel.
3. The loudspeaker of claim 2, wherein: the first auxiliary pole core comprises a first pole core part, a first support part and a plurality of first support parts, the first pole core part surrounds the first main pole core and is attached to the first auxiliary magnetic steel, the first support part is formed by extending from the outer periphery of the first pole core part towards the direction far away from the first magnetic yoke, the plurality of first support parts are formed by extending from the outer periphery of the first pole core part towards the first magnetic yoke, the first vibration system is fixed on the first support part, the first support parts abut against the first magnetic yoke, and the peripheries of the first main magnetic steel and the first main pole core abut against the plurality of first support parts;
the second auxiliary pole core comprises a second pole core part, a second support part and a plurality of second support parts, wherein the second pole core part surrounds the second main pole core and is attached to the second auxiliary magnetic steel, the second support part is formed by extending the outer peripheral edge of the second pole core part towards the direction far away from the second magnetic yoke, the second support part is formed by extending the outer peripheral edge of the second pole core part towards the second magnetic yoke, the second vibration system is fixed on the second support part, the second support parts are abutted to the second magnetic yoke, and the second main magnetic steel and the periphery of the second main pole core are abutted to the second support parts.
4. A loudspeaker according to claim 3, wherein: the first vibration system comprises a first vibrating diaphragm for vibrating and sounding and a first voice coil for driving the first vibrating diaphragm to vibrate and sounding, the first voice coil is suspended in the first magnetic gap, and the first vibrating diaphragm is fixed on the first support part;
the second vibration system comprises a second vibrating diaphragm used for vibrating and sounding and a second voice coil used for driving the second vibrating diaphragm to vibrate and sound, the second voice coil is suspended in the second magnetic gap, and the second vibrating diaphragm is fixed on the second support part.
5. The loudspeaker of claim 4, wherein: the first diaphragm comprises a first ring folding part, a first fixing part and a first ball top part, the first fixing part is formed by extending from the outer periphery of the first ring folding part, the first ball top part is formed by extending from the inner periphery of the first ring folding part, the first fixing part is fixed on the first support part, and the first ball top part is abutted against the first diaphragm;
the second diaphragm comprises a second flange part, a second fixing part and a second ball top, the second fixing part is formed by extending the outer periphery of the second flange part, the second ball top is formed by extending the inner periphery of the second flange part, the second fixing part is fixed on the second support part, and the second ball top is abutted to the second diaphragm.
6. The loudspeaker according to any one of claims 1-5, wherein: the first magnetic yoke is flat, the second magnetic yoke is flat, and the first magnetic yoke and the second magnetic yoke are arranged in parallel in a direction parallel to the first magnetic yoke.
7. The loudspeaker of claim 6, wherein: the loudspeaker further comprises a connecting plate, the first magnetic yoke and the second magnetic yoke are arranged in a direction perpendicular to the first magnetic yoke at intervals, one end of the connecting plate is fixed to one end, close to the second magnetic yoke, of the first magnetic yoke, the other end of the connecting plate is fixed to one end, close to the first magnetic yoke, of the second magnetic yoke, the first vibration system is arranged on one side, facing the second magnetic yoke, of the first magnetic yoke, and the second vibration system is arranged on one side, facing the first magnetic yoke, of the second magnetic yoke.
8. The loudspeaker of claim 7, wherein: the connecting plate is perpendicular to the first magnetic yoke and the second magnetic yoke respectively, and the connecting plate is clamped between the first sounding monomer and the second sounding monomer.
9. The loudspeaker of claim 7, wherein: the first magnetic yoke, the connecting plate and the second magnetic yoke are integrally formed.
10. The loudspeaker of claim 6, wherein: the first magnetic yoke and the second magnetic yoke are arranged on the same horizontal plane, and the first vibration system and the second vibration system are positioned on the same side of the first magnetic yoke and the second magnetic yoke.
11. Electronic terminal, its characterized in that: comprising a terminal body and a loudspeaker according to any of the claims 1-10 above, arranged on the terminal body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142544.5U CN213126462U (en) | 2020-09-25 | 2020-09-25 | Loudspeaker and electronic terminal |
| PCT/CN2020/123823 WO2022062034A1 (en) | 2020-09-25 | 2020-10-27 | Loudspeaker and electronic terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142544.5U CN213126462U (en) | 2020-09-25 | 2020-09-25 | Loudspeaker and electronic terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213126462U true CN213126462U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022142544.5U Active CN213126462U (en) | 2020-09-25 | 2020-09-25 | Loudspeaker and electronic terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213126462U (en) |
| WO (1) | WO2022062034A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016093227A1 (en) * | 2014-12-08 | 2016-06-16 | パイオニア株式会社 | Speaker device |
| CN209964287U (en) * | 2019-04-18 | 2020-01-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN210168201U (en) * | 2019-04-18 | 2020-03-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN210016619U (en) * | 2019-04-18 | 2020-02-04 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
-
2020
- 2020-09-25 CN CN202022142544.5U patent/CN213126462U/en active Active
- 2020-10-27 WO PCT/CN2020/123823 patent/WO2022062034A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2022062034A1 (en) | 2022-03-31 |
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