CN217011184U - Sound production device and electronic equipment - Google Patents
Sound production device and electronic equipment Download PDFInfo
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- CN217011184U CN217011184U CN202220428481.6U CN202220428481U CN217011184U CN 217011184 U CN217011184 U CN 217011184U CN 202220428481 U CN202220428481 U CN 202220428481U CN 217011184 U CN217011184 U CN 217011184U
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- sound
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- vibrating diaphragm
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- hole
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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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
-
- 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
- H04R9/04—Construction, mounting, or centering of coil
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a sound generating device and an electronic device, wherein the sound generating device comprises: a housing; the vibration system is arranged on the shell and comprises a vibrating diaphragm and a voice coil connected with the vibrating diaphragm, the voice coil is flat, the axial direction of the voice coil is perpendicular to the vibration direction of the vibrating diaphragm, a sound outlet side and a rear sound cavity are formed on two opposite sides of the vibrating diaphragm respectively, and the vibrating diaphragm is arranged in an arc shape and protrudes towards the direction far away from the rear sound cavity; the magnetic circuit system is arranged on the shell and comprises a first magnetic assembly and a second magnetic assembly which are parallel and arranged at intervals, a magnetic gap is formed between the first magnetic assembly and the second magnetic assembly, and the voice coil is inserted in the magnetic gap; wherein, the casing is equipped with the balanced hole of atmospheric pressure of back sound chamber intercommunication. The technical scheme of the utility model is beneficial to the heat dissipation and air pressure balance of the sound generating device.
Description
Technical Field
The utility model relates to the technical field of electroacoustic conversion, in particular to a sound generating device and electronic equipment.
Background
The sound generating device is an important electroacoustic transducer element in electronic products, and is used for converting current signals into sound. The sound generating mechanism is usually provided with a voice coil which is located in a rear sound cavity, and in the working process, the voice coil inevitably generates heat which needs to be distributed out, and meanwhile, the inside and outside air pressure of the sound generating mechanism needs to be balanced for the vibration stability of a vibrating diaphragm of the sound generating mechanism.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a sound generating device, which aims to be beneficial to heat dissipation and air pressure balance of the sound generating device.
In order to achieve the above object, the present invention provides a sound generating device comprising:
a housing;
the vibration system is arranged on the shell and comprises a vibrating diaphragm and a voice coil connected with the vibrating diaphragm, the voice coil is flat, the axial direction of the voice coil is perpendicular to the vibration direction of the vibrating diaphragm, a sound outlet side and a rear sound cavity are formed on two opposite sides of the vibrating diaphragm respectively, and the vibrating diaphragm is arranged in an arc shape and protrudes in the direction far away from the rear sound cavity; and
the magnetic circuit system is arranged on the shell and comprises a first magnetic assembly and a second magnetic assembly which are parallel and arranged at intervals, a magnetic gap is formed between the first magnetic assembly and the second magnetic assembly, and the voice coil is inserted in the magnetic gap; wherein, the first and the second end of the pipe are connected with each other,
the shell is provided with an air pressure balancing hole communicated with the rear sound cavity.
Optionally, the casing includes an upper casing and a lower casing, the air pressure equalizing hole includes a first air hole provided in the upper casing and a second air hole provided in the lower casing, and the first air hole is communicated with the second air hole.
Optionally, the lower case is provided with an insertion convex portion inserted into the first air hole, and the second air hole penetrates through the insertion convex portion.
Optionally, an insertion depth of the insertion convex portion in the first air hole is smaller than a hole depth of the first air hole.
Optionally, the air pressure equalizing hole is formed at one end of the casing along the arc-shaped extending direction of the diaphragm.
Optionally, the sound generating device further comprises a waterproof breathable film arranged on the shell, and the waterproof breathable film covers the air pressure equalizing hole.
Optionally, the waterproof breathable membrane is arranged on one side of the shell close to the rear sound cavity.
Optionally, the first magnetic assembly includes a plurality of first magnets and a first magnetic conductive plate, which are stacked, and a magnetizing direction of the first magnet is the same as a vibration direction of the diaphragm, and magnetizing directions of any two adjacent first magnets are opposite to each other;
the second magnetic assembly is provided with a second magnet and a second magnetic conduction plate corresponding to each first magnet and each first magnetic conduction plate, and the magnetizing direction of the second magnet is opposite to that of the first magnet opposite to the second magnet.
The utility model also proposes an electronic device comprising:
the side wall of the equipment shell at least comprises an arc-shaped wall section, and the arc-shaped wall section is provided with a sound outlet; and
aforementioned sound generating mechanism, sound generating mechanism the laminating install in arc wall section, go out the sound side with the balanced hole of atmospheric pressure all corresponds the sound outlet sets up.
Optionally, a dust screen is further arranged between the equipment shell and the sound generating device, and the dust screen covers the sound outlet.
Optionally, the electronic device is a smart watch or a smart bracelet.
According to the technical scheme, the air pressure balancing hole is directly formed in the shell of the sounding device, so that the heat dissipation and air pressure balancing of the sounding device are facilitated; in addition, the sound generating device adopts the flat voice coil, can realize better acoustic performance under the condition of smaller volume of the sound generating device, is favorable for miniaturization of the sound generating device and is favorable for using the sound generating device on an electronic device with smaller volume; moreover, be the setting of curved vibrating diaphragm, can make full use of electronic equipment arc shell portion's space under the condition that does not increase electronic equipment volume and shape, does not change sound generating mechanism occupation space for the vibration space of voice coil loudspeaker voice coil is bigger, the vibration range of vibrating diaphragm is bigger, thereby promotes sound generating mechanism's acoustic performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sound generating device according to an embodiment of the present invention; wherein, the voice coil and the magnetic circuit system are hidden;
FIG. 2 is a schematic cross-sectional view of the sound generating device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the utility model;
fig. 4 is a schematic partial cross-sectional structure diagram of the electronic device in fig. 3.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 10 | |
100 | |
| 101 | Abutting convex part | 2 | |
| 21 | Vibrating |
20 | Air |
| 201 | |
202 | |
| 23 | Shell body | 231 | |
| 232 | |
24 | Waterproof |
| 25 | |
26 | Magnetic conductive yoke |
| 271 | First |
271a | |
| 272 | Second |
272a | |
| 28 | Dust- |
291 | First |
| 292 | Second magnetic conduction plate | 233 | |
| 234 | Plug-in projection |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the expression "and/or" and/or "is used throughout, the meaning includes three parallel schemes, for example," A and/or B ", including scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a sound production device.
Referring to fig. 1 to 4, in an embodiment of the present invention, the sound generating device 2 includes:
a housing 23;
the vibration system is arranged on the shell 23 and comprises a vibrating diaphragm 21 and a voice coil 25 connected with the vibrating diaphragm 21, the voice coil 25 is flat, the axial direction of the voice coil 25 is perpendicular to the vibration direction of the vibrating diaphragm 21, a sound outlet side and a rear sound cavity are respectively formed on two opposite sides of the vibrating diaphragm 21, and the vibrating diaphragm 21 is arranged in an arc shape and protrudes towards the direction far away from the rear sound cavity; and
the magnetic circuit system is arranged in the casing 23, and the magnetic circuit system comprises a first magnetic assembly 271 and a second magnetic assembly 272 which are parallel and arranged at intervals, a magnetic gap is formed between the first magnetic assembly 271 and the second magnetic assembly 272, and the voice coil 25 is inserted into the magnetic gap; wherein the content of the first and second substances,
the housing 23 is provided with an air pressure equalizing hole 20 communicating with the rear acoustic chamber.
In this embodiment, corresponding to the arc-shaped diaphragm 21, the housing 23 is also arranged in an arc shape, so that the two are installed in a matching manner; it can be understood that to electronic equipment such as intelligent wrist-watch, intelligent bracelet, its equipment shell 10 mostly is circular or oval, or possesses one section or the curved lateral wall of multistage at least, and the vibrating diaphragm 21 that is the arc setting is favorable to laminating mutually with the arc wall section on these equipment shells 10 to fill and to utilize electronic equipment's the space of arc shell part. Optionally, the magnetic circuit system further includes a magnetic yoke 26, and the first magnetic assembly 271 and the second magnetic assembly 272 are both disposed on the magnetic yoke 26. Optionally, the surface of the magnetic yoke 26 facing away from the vibration system is arranged in a plane to facilitate stable mounting of the sound emitting device 2 on the electronic device.
According to the technical scheme, the air pressure balancing hole 20 is directly formed in the shell 23 of the sound generating device 2, so that heat dissipation and air pressure balancing of the sound generating device 2 are facilitated; in addition, the voice device of the utility model adopts the flat voice coil 25, can realize better acoustic performance under the smaller volume of the voice device 2, is favorable for the miniaturization of the voice device and is favorable for the use of the voice device on an electronic device with smaller volume; moreover, be curved vibrating diaphragm 21's setting, can make full use of electronic equipment arc shell part's space, under the condition that does not increase electronic equipment volume and shape, does not change sound generating mechanism 2 occupation space for voice coil loudspeaker voice coil 25's vibration space is bigger, vibrating diaphragm 21's vibration range is bigger, thereby promotes sound generating mechanism 2's acoustic performance.
Further, the housing 23 includes an upper shell 231 and a lower shell 232, the air pressure equalizing hole 20 includes a first air hole 201 disposed on the upper shell 231 and a second air hole 202 disposed on the lower shell 232, and the first air hole 201 is communicated with the second air hole 202 to ensure the smoothness of the air pressure equalizing hole 20. Optionally, the diaphragm 21 and the upper shell 231 are connected into a whole, so that during assembly, after the lower shell 232 is arranged in the magnetic circuit system, the integrated diaphragm 21 and the upper shell 231 are modularly mounted to the lower shell 232, so that the modularized mounting of a product is realized, and the assembly efficiency is improved. Further optionally, the vibrating diaphragm 21 and the upper shell 231 can be connected into a whole in a hot pressing or injection molding manner, so that on one hand, seamless combination between the vibrating diaphragm 21 and the upper shell 231 can be achieved, waterproof capability is improved, high-grade waterproof requirements are met, on the other hand, the assembling process of materials can be simplified, manpower and material resources are saved, on the other hand, the combination force between the vibrating diaphragm 21 and the upper shell 231 is large, and the vibrating diaphragm is not easy to separate and fail.
Further, the lower shell 232 is provided with an insertion convex portion 234 inserted into the first air hole 201, so that the positioning and installation between the upper shell 231 and the lower shell 232 are realized through the alignment installation of the insertion convex portion 234 and the first air hole 201; when the insertion convex portion 234 is tightly inserted into the first air hole 201, the upper shell 231 and the lower shell 232 can be fixedly connected through the fit between the insertion convex portion 234 and the first air hole 201. Without loss of generality, in the present embodiment, the second air hole 202 penetrates through the insertion convex portion 234 to achieve communication between the second air hole 202 and the first air hole 201.
Optionally, the insertion depth of the insertion convex portion 234 in the first air hole 201 is smaller than the hole depth of the first air hole 201; in this way, while the positioning and installation between the upper shell 231 and the lower shell 232 are realized, the outer hole section of the air pressure equalizing hole 20 (the portion of the first air hole 201 that is not inserted by the insertion convex portion 234) is made larger, so as to reduce the risk that the air pressure equalizing hole 20 is blocked.
Further, the air pressure equalizing hole 20 is disposed at one end of the housing 23 along the arc-shaped extending direction of the diaphragm 21. It can be understood that, in the arc-shaped extending direction of the diaphragm 21, the housing 23 is generally disposed in a long strip shape, and two ends of the housing 23 in the length direction generally have larger positions, which is more beneficial for the opening of the air pressure equalizing hole 20.
Further, the sound generating device 2 further comprises a waterproof breathable film 24 disposed on the housing 23, and the waterproof breathable film 24 covers the air pressure equalizing hole 20 to improve the waterproof performance of the sound generating device 2. Optionally, the waterproof and breathable film 24 is adhered to the housing 23 in a manner that not only the connection between the two components is realized, but also the two connected components are sealed, so as to further improve the waterproof performance of the product.
Optionally, the waterproof and breathable membrane 24 is disposed on a side of the housing 23 near the rear acoustic chamber. That is, the waterproof breathable film 24 is located inside the casing 23, so that the casing 23 can provide protection for the waterproof breathable film 24, and the probability of breakage of the waterproof breathable film 24 is reduced. However, the design is not limited thereto, and in other embodiments, the waterproof breathable membrane 24 may also be disposed on a side of the casing 23 close to the sound emitting side, that is, the waterproof breathable membrane 24 is located outside the casing 23, so that the replacement of the waterproof breathable membrane 24 is facilitated.
Further, referring to fig. 2, the first magnetic assembly 271 includes two first magnets 271a and two first magnetic conductive plates 291, which are stacked, wherein the magnetizing direction of the first magnets 271a is the same as the vibration direction of the diaphragm 21, and the magnetizing directions of the two first magnets 271a are opposite; the second magnetic component 272 is provided with a second magnet 272a and a second magnetic conduction plate 292 corresponding to each first magnet 271a and each first magnetic conduction plate 291, and the magnetizing direction of the second magnet 272a is opposite to that of the first magnet 271a opposite to the second magnet 272 a; the voice coil 25 has two flat straight sections that are in the interval sets up and current direction is opposite on the vibration direction of vibrating diaphragm 21, and one of them flat straight section is located and is close to in the magnetic gap that a pair of first magnetic conduction board 291 and second magnetic conduction board 292 of the one end of vibrating diaphragm 21 formed, and another flat straight section is located and keeps away from in the magnetic gap that another pair of first magnetic conduction board 291 and second magnetic conduction board 292 of the one end of vibrating diaphragm 21 formed, so, the drive power that the voice coil 25 received is big, and the oscillation starting speed is fast. However, the design is not limited thereto, and in other embodiments, only one first magnet 271a and one second magnet 272a may be provided, and the voice coil 25 may be provided between the first magnet 271a and the second magnet 272 a; in still other embodiments, three or more first magnets 271a may be further provided, and for the three or more first magnets 271a, the magnetizing directions of any two adjacent first magnets 271a are opposite, and the number and the positions of the second magnets 272a are correspondingly provided, in which case, the number of the voice coils 25 is correspondingly increased, and one voice coil 25 may be disposed between each pair of the first magnets 271a and the second magnets 272a, and the plurality of voice coils 25 are sequentially arranged along the vibration direction of the diaphragm 21 and are sequentially fixed together.
The present invention further provides an electronic device, referring to fig. 1 to 4, the electronic device includes a device housing 10 and a sound generating device 2, the specific structure of the sound generating device 2 refers to the above embodiments, and the electronic device adopts all technical solutions of all the above embodiments, so that the electronic device at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated here. The side wall of the device housing 10 at least includes an arc-shaped wall section, and the arc-shaped wall section is opened with a sound outlet 100. The sound generating device 2 is mounted on the arc-shaped wall section in a fitting manner, that is, the housing 23 and the diaphragm 21 are mounted on the arc-shaped wall section in a fitting manner. The sound outlet side is disposed corresponding to the sound outlet 100 so as to generate sound. The air pressure balancing hole 20 is also arranged corresponding to the sound outlet 100 so as to perform heat dissipation and air pressure balancing sequentially through the air pressure balancing hole 20 and the sound outlet 100. It should be noted that, the electronic device may be, but not limited to, a smart watch, a smart bracelet, etc., and the device shell 10 may be circular or elliptical, in which case, the entire side wall of the device shell 10 is arc-shaped, and of course, the device shell 10 may also have only one or more arc-shaped side walls, for example, but not limited to, two ends in the length direction are flat, and two sides in the width direction are arc-shaped.
Further, the electronic device further comprises a dust screen 28, wherein the dust screen 28 at least covers the air pressure equalizing hole 20 so as to reduce the risk that dirt such as dust blocks the air pressure equalizing hole 20. Optionally, the dust screen 28 also covers the diaphragm 21 to reduce the risk that dirt such as dust adheres to the diaphragm 21 to affect the vibration of the diaphragm 21; it will be appreciated that in this case, the dust screen 28 is typically arranged to cover the entire sound outlet 100.
In the present invention, the dust screen 28 is disposed between the device case 10 and the sound generating device 2. Specifically, the dust screen 28 may be attached to the housing 23 only, may be attached to the device case 10 only, or may be attached to both the housing 23 and the device case 10.
Optionally, a mounting protrusion 233 is provided on the housing 23, and the dust screen 28 is mounted on the mounting protrusion 233 so as to be attached to the housing 23. In this embodiment, the mounting projections 233 are generally disposed near the edge of the dust screen 28 to limit the edge of the dust screen 28 from curling toward the center by the mounting projections 233. Further optionally, at least one mounting protrusion 233 is respectively disposed at two ends of the housing 23 along the arc extending direction of the vibrating diaphragm 21, so as to at least limit two ends of the dust screen 28 from being curled toward the middle, thereby improving the assembling reliability of the dust screen 28. Optionally, the air pressure equalizing hole 20 is opened on one side of one of the mounting protrusions 233 adjacent to the other mounting protrusion 233, so as to ensure that the dust-proof net 28 can cover the air pressure equalizing hole 20.
Optionally, the device housing 10 is provided with an abutting convex portion 101 on the sound outlet 100, and the abutting convex portion 101 abuts against the dust screen 28 on the housing 23; it will be appreciated that in this embodiment, the dust screen 28 is clamped between the device housing 10 and the housing 23.
Of course, in other embodiments, the dust screen 28 may also be, but is not limited to, adhered to the housing 23 and/or the device case 10.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A sound generating device, comprising:
a housing;
the vibration system is arranged on the shell and comprises a vibrating diaphragm and a voice coil connected with the vibrating diaphragm, the voice coil is flat, the axial direction of the voice coil is perpendicular to the vibration direction of the vibrating diaphragm, a sound outlet side and a rear sound cavity are formed on two opposite sides of the vibrating diaphragm respectively, and the vibrating diaphragm is arranged in an arc shape and protrudes towards the direction far away from the rear sound cavity; and
the magnetic circuit system is arranged on the shell and comprises a first magnetic assembly and a second magnetic assembly which are parallel and arranged at intervals, a magnetic gap is formed between the first magnetic assembly and the second magnetic assembly, and the voice coil is inserted in the magnetic gap; wherein the content of the first and second substances,
the shell is provided with an air pressure balancing hole communicated with the rear sound cavity.
2. The apparatus according to claim 1, wherein said housing comprises an upper shell and a lower shell, and said air pressure equalizing hole comprises a first air hole provided in said upper shell and a second air hole provided in said lower shell, said first air hole communicating with said second air hole.
3. The sound generating apparatus as claimed in claim 2, wherein said lower case is provided with a fitting projection inserted into said first air hole, and said second air hole penetrates said fitting projection.
4. The sound generating apparatus as claimed in claim 3, wherein an insertion depth of said insertion projection into said first air hole is smaller than a hole depth of said first air hole.
5. The sound-generating apparatus as claimed in claim 1, wherein said air pressure equalizing hole is provided at an end of said casing in a direction along which said diaphragm extends arcuately.
6. The sound-generating apparatus as claimed in claim 1, wherein said sound-generating apparatus further comprises a waterproof and breathable membrane disposed in said housing, said waterproof and breathable membrane covering said air pressure equalization hole.
7. The sound-generating apparatus of claim 6 wherein said waterproof, breathable membrane is disposed on a side of said housing proximate said rear acoustic chamber.
8. The sound production device according to any one of claims 1 to 7, wherein the first magnetic assembly includes a plurality of first magnets and first magnetic conductive plates, which are stacked, and the first magnets are magnetized in the same direction as the vibration direction of the diaphragm, and the magnetizing directions of any two adjacent first magnets are opposite;
the second magnetic assembly is provided with a second magnet and a second magnetic conduction plate corresponding to each first magnet and each first magnetic conduction plate, and the magnetizing direction of the second magnet is opposite to that of the first magnet opposite to the second magnet.
9. An electronic device, comprising:
the side wall of the equipment shell at least comprises an arc-shaped wall section, and the arc-shaped wall section is provided with a sound outlet; and
the sound generating device according to any one of claims 1 to 8, wherein the sound generating device is attached to the arc-shaped wall section, and the sound outlet side and the air pressure equalizing hole are both disposed corresponding to the sound outlet.
10. The electronic device of claim 9, wherein a dust screen is further disposed between the device housing and the sound generating device, and the dust screen covers the sound outlet.
11. The electronic device of claim 9 or 10, wherein the electronic device is a smart watch or a smart bracelet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220428481.6U CN217011184U (en) | 2022-02-28 | 2022-02-28 | Sound production device and electronic equipment |
| PCT/CN2022/127358 WO2023159989A1 (en) | 2022-02-28 | 2022-10-25 | Sound emitting apparatus and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220428481.6U CN217011184U (en) | 2022-02-28 | 2022-02-28 | Sound production device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217011184U true CN217011184U (en) | 2022-07-19 |
Family
ID=82395754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220428481.6U Active CN217011184U (en) | 2022-02-28 | 2022-02-28 | Sound production device and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217011184U (en) |
| WO (1) | WO2023159989A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023159989A1 (en) * | 2022-02-28 | 2023-08-31 | 歌尔股份有限公司 | Sound emitting apparatus and electronic device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206524941U (en) * | 2017-01-22 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN110278517A (en) * | 2019-07-16 | 2019-09-24 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
| US11882422B2 (en) * | 2019-07-22 | 2024-01-23 | AAC Technologies Pte. Ltd. | Heat dissipation device |
| CN113473323A (en) * | 2020-03-31 | 2021-10-01 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN111970618B (en) * | 2020-10-20 | 2021-01-22 | 歌尔股份有限公司 | Sound generating device and wearable equipment |
| CN217011184U (en) * | 2022-02-28 | 2022-07-19 | 歌尔股份有限公司 | Sound production device and electronic equipment |
-
2022
- 2022-02-28 CN CN202220428481.6U patent/CN217011184U/en active Active
- 2022-10-25 WO PCT/CN2022/127358 patent/WO2023159989A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023159989A1 (en) * | 2022-02-28 | 2023-08-31 | 歌尔股份有限公司 | Sound emitting apparatus and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023159989A1 (en) | 2023-08-31 |
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