CN210093485U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN210093485U CN210093485U CN201921032252.7U CN201921032252U CN210093485U CN 210093485 U CN210093485 U CN 210093485U CN 201921032252 U CN201921032252 U CN 201921032252U CN 210093485 U CN210093485 U CN 210093485U
- Authority
- CN
- China
- Prior art keywords
- extending
- circuit board
- top wall
- sound production
- loudspeaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005476 soldering Methods 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 239000000178 monomer Substances 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract 5
- 238000005452 bending Methods 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 claims 2
- 239000012212 insulator Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model provides a loudspeaker, including the casing that has accommodating space, and accept the sound production monomer in accommodating space, the sound production monomer is including the relative sound production face and the back that sets up, and the side surface at sound production face and the back is connected, the back exposes and is equipped with the conductive terminal of being connected with sound production monomer electricity, the casing includes the roof that corresponds with the sound production face, diapire relative with the roof, and from the lateral wall that the roof edge extends towards the diapire, the roof, diapire and lateral wall enclose into accommodating space, loudspeaker is still including being fixed in the casing and the circuit board of being connected with conductive terminal electricity, connect the soldering lug between conductive terminal and circuit board, the soldering lug is including fixing the first extension that corresponds at the back and with conductive terminal, and extend to the second extension of diapire by first extension, the circuit board is connected with conductive terminal electricity through the second. The utility model discloses a soldering lug is connected with the sound production monomer, has avoided traditional flexible circuit board because too wide takes place the problem of interference with the apron.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of sound production devices, in particular to a loudspeaker.
[ background of the invention ]
In the structural schematic diagram of the existing speaker, as shown in fig. 1, a sound generating unit 3 is disposed in an accommodating cavity of a cover plate 1A, and a circuit board 4 is directly soldered on a pad of the sound generating unit 3. Along with the miniaturization and refinement of product design, the cover plate frame of the product is also smaller and smaller, and in some extreme cases, the circuit board can interfere with the cover plate frame even if the circuit board is wired according to the limit, in the figure situation, because the width of the circuit board 4 is too large, the circuit board cannot be completely accommodated in the cover plate 1A, the cover plate 1A and the circuit board 4 have an overlapping area S, and the two interfere.
Aiming at the problems, the design of the cover plate can be only modified at present, the frame of the cover plate is expanded outwards, and the volume of the product is increased. Therefore, the prior art has yet to be developed.
[ summary of the invention ]
The invention aims to provide a loudspeaker, and aims to solve the problem that in the prior art, the problem of interference between a cover plate and a flexible circuit board cannot be solved due to the width limitation of the flexible circuit board.
The technical scheme of the invention is as follows:
a loudspeaker comprises a shell with an accommodating space and a sounding unit accommodated in the accommodating space, wherein the sounding unit comprises a sounding surface and a back surface which are oppositely arranged and a side surface connected with the sounding surface and the back surface, the back surface is provided with a conductive terminal electrically connected with the sounding unit, the shell comprises a top wall corresponding to the sounding surface, a bottom wall corresponding to the top wall and a side wall extending from the edge of the top wall to the bottom wall, the top wall, the bottom wall and the side wall enclose the accommodating space, the loudspeaker further comprises a circuit board fixed on the shell and electrically connected with the conductive terminal, the loudspeaker further comprises a soldering lug connected between the conductive terminal and the circuit board, and the soldering lug comprises a first extending part fixed on the back surface and corresponding to the conductive terminal and a second extending part extending from the first extending part to the bottom wall, one end of the circuit board close to the sounding monomer is fixed on the bottom wall and is electrically connected with the conductive terminal through the second extending part.
Further, the second extending portion includes a sheet-shaped body fixed to the side surface and an electrical connection portion bent and extending from one end of the sheet-shaped body, which is far away from the top wall, toward the bottom wall, and the sheet-shaped body is bent and extended from the edge of the first extending portion toward the top wall.
Furthermore, the two conductive terminals are exposed on the back face and insulated from each other, and the soldering lugs are in one-to-one correspondence with the conductive terminals.
Further, the top wall extends towards the diapire direction and is formed with the first boss of sound production monomer interval setting, the slice body set up in the side surface with between the first boss.
Further, the electric connection portion comprises a support portion attached to the first boss and a conductive elastic pin bent and extended from one end, far away from the sheet-shaped body, of the support portion towards the bottom wall, and the support portion and the first extension portion are located on two opposite sides of the sheet-shaped body.
Furthermore, the two flaky bodies of the soldering lug are mutually spaced, and the loudspeaker further comprises an insulating part connected between the two flaky bodies.
Further, the circuit board comprises a welding portion overlapped on the bottom wall, a bending portion extending from the welding portion to the top wall, and a conductive portion extending from the bending portion and fixedly attached to the top wall, a second boss is convexly arranged on the bottom wall in the direction of the top wall, and one end, close to the bending portion, of the conductive portion is clamped between the second boss and the top wall.
Furthermore, the second boss comprises a top surface and an extension surface, the top surface is located at one end, far away from the bottom wall, of the second boss, the extension surface extends from one side, close to the sounding monomer, of the top surface to the bottom wall, one end, close to the bending portion, of the conductive portion is clamped between the top surface and the top wall, and the bending portion is attached to the extension surface.
Furthermore, a pad electrically connected with an external circuit is formed at one end, away from the second boss, of the conductive part, the pad is exposed out of the shell, a positioning hole is formed in the pad, and a positioning column matched with the positioning hole is convexly arranged on the top wall.
Further, the casing still includes from the roof extends the installation wall that forms towards the diapire direction, sound production monomer correspondence is fixed in the installation wall and with the roof interval sets up.
The invention has the beneficial effects that: according to the loudspeaker provided by the invention, the circuit board is connected with the sound generating monomer through the soldering lug instead of directly welding the circuit board on the surface of the sound generating monomer, the width of the circuit board can be greatly reduced, the circuit board cannot interfere with the shell, and the soldering lug is fixed on the side surface of the sound generating monomer and cannot interfere with the shell, so that the problem that the circuit board interferes with the cover plate due to too wide width in the traditional connecting method is solved, the first bending part simultaneously plays a role in conducting and fixing, the connection between the circuit board and the soldering lug does not need to be welded, and the loudspeaker is simple in assembly and suitable for mass production.
[ description of the drawings ]
FIG. 1 is a schematic diagram illustrating interference between a circuit board and a cover plate according to the prior art;
FIG. 2 is a perspective view of one embodiment of a speaker of the present invention;
FIG. 3 is an exploded view corresponding to FIG. 2;
FIG. 4 is a perspective view of one embodiment of a bonding pad of the present invention;
FIG. 5 is a block diagram of a first embodiment of the present invention for connecting two bonding pads;
FIG. 6 is a block diagram of a second embodiment of the present invention for connecting two bonding pads;
FIG. 7 is a diagram illustrating a positional relationship between a second boss and a circuit board according to the present invention;
fig. 8 is a sectional view of the inner assembly structure taken along the line of fig. 2A-a.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
The invention provides an embodiment of a loudspeaker, as shown in fig. 2 and fig. 3, the loudspeaker comprises a shell with a containing space, specifically comprises an upper shell 1 and a lower shell 2, in the figure, in order to show more details, the upper and lower placing positions are reversed, a sound generating unit 3 is contained in the containing space, the sound generating unit 3 comprises a sound generating surface 31 and a back surface 32 which are oppositely arranged, and a side surface 33 which connects the sound generating surface 31 and the back surface 32, and a conductive terminal 34 which is electrically connected with the sound generating unit 3 is exposed on the back surface 32; the casing comprises a top wall 11 corresponding to the sound-emitting surface 31, a bottom wall 21 opposite to the top wall 11, and a side wall 14 extending from the edge of the top wall 11 to the bottom wall 21, wherein the top wall 11, the bottom wall 21 and the side wall 14 enclose the accommodating space; preferably, the housing may further include a mounting wall 15 extending from the top wall 11 toward the bottom wall 21, and the sound-generating unit 3 is correspondingly fixed to the mounting wall 15 and spaced apart from the top wall 11. The speaker further includes a circuit board 4 fixed to the housing (e.g., upper housing 1 in the figure) and electrically connected to the conductive terminal 34, and a soldering lug connected between the conductive terminal 34 and the circuit board 4, the specific structure of the soldering lug is, for example, a soldering lug 5B, as shown in fig. 4, including a first extending portion 51 fixed to the back surface 32 and corresponding to the conductive terminal 34, and a second extending portion 52 extending from the first extending portion 51 to the bottom wall 21, wherein one end of the circuit board 4 close to the sound generating unit 3 is fixed to the bottom wall 21 and electrically connected to the conductive terminal 34 through the second extending portion 52.
In the traditional loudspeaker structure, the circuit board is directly welded on the surface of the sounding monomer, and the circuit board is interfered with the cover plate when the width of the circuit board is too large. In the present invention, the soldering lug can be made of a common conductor material, such as a copper sheet.
As to a further specific embodiment of the soldering lug, as shown in fig. 4, the second extending portion 52 includes a sheet-shaped body 521 fixed on the side surface 33 and an electrical connection portion 522 bent and extended from one end of the sheet-shaped body 521 away from the top wall 11 toward the bottom wall 21, and the sheet-shaped body 521 is bent and extended from the edge of the first extending portion 51 toward the top wall 11. In this embodiment, the soldering lug is fixed to the side surface 33 of the sound-generating unit 3 by the sheet-shaped body 521, so that the soldering lug does not interfere with the housing, and the problem of interference between the circuit board and the housing due to too wide width in the conventional connection method is avoided.
Further, two conductive terminals 34 may be provided, as shown in fig. 3, and are respectively exposed on the back surface 32 and insulated from each other, the two conductive terminals 34 are located at two opposite ends of the sounding unit 3 near one side of the boss 12, correspondingly, two soldering lugs are provided, which are 5A and 5B respectively, and are arranged at intervals, and the soldering lugs are in one-to-one correspondence with the conductive terminals.
In another preferred embodiment of the present invention, as shown in fig. 3, the top wall 11 extends toward the bottom wall 21 to form a first boss 12 spaced apart from the sound-generating unit 3, the sheet-shaped body 521 is disposed between the side surface 33 and the first boss 12, the electrical connection portion 522 may specifically include a support portion 5221 attached to the first boss 12 and a conductive spring leg 5222 bent and extending from one end of the support portion 5221 away from the sheet-shaped body toward the bottom wall 21, and the support portion 5221 and the first extension portion 51 are located on two opposite sides of the sheet-shaped body. The support part 5221 of the soldering lug is supported by the boss 12, so that the problem that the connection reliability of the soldering point is influenced due to the fact that the second extension part 52 generates a downward pulling force in a suspended state is avoided. In addition, the conductive spring leg 5222 is in contact with the circuit board 4, and one end of the circuit board 4 close to the sounding unit 3 is fixed to the bottom wall 21, that is, the circuit board 4 is clamped and fixed by the conductive spring leg 5222 of the soldering piece and the bottom wall 21 (refer to fig. 8 at the same time), so that preferably, the conductive spring leg 5222 may have a certain elasticity, and the clamping force is larger. Compared with the traditional welding connection, the assembly method for clamping, conducting and fixing is simpler and is easy to disassemble. Note that the extending directions of the first extending portion 51 and the supporting portion 5221 are set according to the illustrated structure, and the extending directions are opposite and perpendicular to the sheet-shaped body 521. In fact, as the design positions of the circuit boards are different, the extension position, the angle and the extension direction can be flexibly adjusted according to the specific structural design; the obtuse included angle formed between the supporting portion 5221 and the conductive spring leg 5222 can also be adjusted according to actual needs, and it is preferable to keep the conductive spring leg 5222 to form a certain pressure on the bottom wall 21, so as to achieve a better fixing effect. In the embodiment, the sheet-shaped body 521 is fixed on the side surface 33 of the sound generating unit 3, and then two connecting ends (the first extending portion 51 and the conductive spring leg 5222) extend from the sheet-shaped body 521 to be connected with the conductive terminal 34 and the circuit board 4, respectively, so that the problem that the circuit board 4 is too wide and interferes with the housing in the conventional connection method is solved, and the conductive spring leg 5222 of the soldering lug plays a role in conducting and fixing at the same time.
In order to facilitate assembly and improve production efficiency and assembly precision, preferably, the sheet-shaped body of the soldering lug 5A and the sheet-shaped body of the soldering lug 5B in the above embodiment are connected through an insulating member to form an integrated assembly, so that when the soldering pad is soldered with 2 soldering lugs, only one-time alignment operation is needed. Specifically, as shown in fig. 5, the insulating sheet 6A may be fixed to the same surface of the sheet-like body of the 2 bonding pads for connection. The fixing method shown in fig. 6 may be adopted, and the insulating block 6B may be used to connect the gap between the side end faces of the sheet-like body of the 2 bonding pads.
As shown in fig. 3 and 7, the circuit board 4 includes a soldering portion 41 stacked on the bottom wall 21, a bent portion 42 extending from the soldering portion 41 to the top wall, and a conductive portion 43 extending from the bent portion 42 and attached to the top wall 11; meanwhile, a second boss 22 is provided on the bottom wall 21 in a protruding manner toward the top wall 11, and one end of the conductive portion 43 close to the bent portion 42 is interposed between the second boss 22 and the top wall 11. In order to have a better attaching and fixing effect, the second boss 22 may further include a top surface 221 located at one end of the second boss 22 far from the bottom wall 21, and an extending surface 222 extending from one side of the top surface 221 close to the sound generating unit 3 to the bottom wall 21, one end of the conductive portion 43 close to the bent portion 42 is sandwiched between the top surface 221 and the top wall 11, and the bent portion 42 is attached to the extending surface 222. The circuit board 4 is assembled as shown in fig. 8. In this embodiment, the second boss 22 and the inclined surface 222 of the second boss 22 are provided to smoothly transition the circuit board 4 from the bottom wall 21 to the top wall 11, and the circuit board is fixed (double-sided tape can be attached), so that not only is the adaptability of the connection between the conductive portion 43 and the external port ensured, but also the circuit board 4 can be prevented from being loosened and dragging the butt joint after the circuit board is fixed.
In order to further improve the assembly efficiency and the assembly precision, as shown in fig. 3, a pad 431 electrically connected with an external circuit is formed at one end of the conductive portion 43 away from the second boss 22, the pad 431 is exposed to the housing, the pad 431 is provided with a positioning hole 432, and the top wall 11 is convexly provided with a positioning column 13 matched with the positioning hole 432.
In summary, the present invention provides a speaker, wherein a circuit board is connected to a pad of a sound generating unit through a soldering lug, the soldering lug is fixed on a side surface of the sound generating unit, and then two connecting ends (a first extending portion and a second extending portion) are respectively connected to a conductive terminal and the circuit board, so as to avoid the problem of interference between the circuit board and a cover plate due to too wide circuit board in the conventional connection method. On the basis, the boss is additionally arranged on the shell to avoid the reliability problem caused by the addition of the soldering lug, and meanwhile, the positioning column is arranged on the cover plate, and the positioning hole is arranged on the circuit board to improve the assembly efficiency and the assembly precision.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a loudspeaker, have accommodating space's casing and accept in sound production monomer in the accommodating space, sound production monomer is including the relative sound production face that sets up and back and connection the side surface at sound production face and back, the back expose be equipped with the electrically conductive terminal that sound production monomer electricity is connected, the casing include with the roof that sound production face corresponds, with relative diapire of roof and certainly roof edge court the lateral wall that the diapire extends, the roof the diapire reaches the lateral wall encloses into accommodating space, loudspeaker still including be fixed in the casing and with the circuit board that electrically conductive terminal is connected, its characterized in that: the loudspeaker is still including connecting conductive terminal with the soldering lug between the circuit board, the soldering lug is including fixing the back and with the first extension that conductive terminal corresponds and by first extension extends to the second extension of diapire, the circuit board is close to the one end of sound production monomer is fixed in the diapire and warp the second extension with conductive terminal electricity is connected.
2. The loudspeaker of claim 1, wherein the second extending portion comprises a sheet-shaped body fixed on the side surface and an electrical connection portion bent and extending from one end of the sheet-shaped body away from the top wall toward the bottom wall, and the sheet-shaped body is bent and extending from the edge of the first extending portion toward the top wall.
3. The speaker of claim 2, wherein two of said conductive terminals are exposed at said back surface and insulated from each other, and said solder tabs are in one-to-one correspondence with said conductive terminals.
4. The speaker of claim 3, wherein the top wall extends toward the bottom wall to form a first boss spaced apart from the sound-generating unit, and the sheet-like body is disposed between the side surface and the first boss.
5. The loudspeaker of claim 4, wherein the electrical connection portion comprises a support portion attached to the first boss and a conductive spring leg extending from one end of the support portion away from the sheet-like body to bend toward the bottom wall, and the support portion and the first extension portion are located on opposite sides of the sheet-like body.
6. The loudspeaker in accordance with claim 5 wherein the plate-like bodies of the two solder tabs are spaced apart from one another, the loudspeaker further comprising an insulator connected between the two plate-like bodies.
7. The speaker according to any one of claims 1-6, wherein the circuit board includes a soldering portion stacked on the bottom wall, a bending portion extending from the soldering portion to the top wall, and a conductive portion extending from the bending portion and bonded to the top wall, the bottom wall has a second protrusion protruding toward the top wall, and an end of the conductive portion near the bending portion is sandwiched between the second protrusion and the top wall.
8. The speaker according to claim 7, wherein the second protrusion includes a top surface located at an end of the second protrusion away from the bottom wall, and an extending surface extending from a side of the top surface close to the sound generating unit to the bottom wall, an end of the conductive portion close to the bent portion is sandwiched between the top surface and the top wall, and the bent portion is attached to the extending surface.
9. The speaker of claim 8, wherein an end of the conductive portion away from the second boss forms a pad electrically connected to an external circuit, the pad is exposed from the housing, the pad is provided with a positioning hole, and the top wall is provided with a positioning post protruding to match with the positioning hole.
10. The speaker of claim 1, wherein the housing further includes a mounting wall extending from the top wall toward the bottom wall, and the sound generating unit is correspondingly fixed to the mounting wall and spaced apart from the top wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2019/093987 | 2019-06-29 | ||
| PCT/CN2019/093987 WO2021000091A1 (en) | 2019-06-29 | 2019-06-29 | Speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210093485U true CN210093485U (en) | 2020-02-18 |
Family
ID=69484724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921032252.7U Expired - Fee Related CN210093485U (en) | 2019-06-29 | 2019-07-03 | Loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210093485U (en) |
| WO (1) | WO2021000091A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468909A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112468908A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker enclosure and method of assembling the same |
| CN112468907A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| WO2022126763A1 (en) * | 2020-12-18 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker cabinet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7578368B2 (en) * | 2007-03-07 | 2009-08-25 | Foxconn Technology Co., Ltd. | Speaker set for electronic product |
| CN107231592B (en) * | 2017-05-18 | 2019-12-13 | 歌尔股份有限公司 | standard accessory and standard accessory group of speaker module shell and speaker module |
| CN108307277B (en) * | 2018-01-05 | 2020-07-14 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN208638626U (en) * | 2018-08-03 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
-
2019
- 2019-06-29 WO PCT/CN2019/093987 patent/WO2021000091A1/en active Application Filing
- 2019-07-03 CN CN201921032252.7U patent/CN210093485U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468909A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112468908A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker enclosure and method of assembling the same |
| CN112468907A (en) * | 2020-12-18 | 2021-03-09 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112468907B (en) * | 2020-12-18 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112468909B (en) * | 2020-12-18 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112468908B (en) * | 2020-12-18 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker enclosure and method of assembling the same |
| WO2022126766A1 (en) * | 2020-12-18 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker cabinet |
| WO2022126763A1 (en) * | 2020-12-18 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker cabinet |
| WO2022126782A1 (en) * | 2020-12-18 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box and assembly method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021000091A1 (en) | 2021-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210703 |