CN216700053U - Sound output assembly and electronic equipment - Google Patents
Sound output assembly and electronic equipment Download PDFInfo
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- CN216700053U CN216700053U CN202220136751.6U CN202220136751U CN216700053U CN 216700053 U CN216700053 U CN 216700053U CN 202220136751 U CN202220136751 U CN 202220136751U CN 216700053 U CN216700053 U CN 216700053U
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Abstract
The application provides a go out sound subassembly and electronic equipment, includes: a screen; a housing having a sound outlet slot; the screen is connected with the shell and forms an accommodating hole and an accommodating cavity with the shell; at least one part of the accommodating hole is arranged opposite to the sound outlet groove; the earphone decoration comprises a base body and a sound outlet structure convexly arranged on the base body; the sound outlet structure is circumferentially fixed by the accommodating hole; the base body is provided with an extension section extending towards the accommodating cavity, and the extension section is fixedly connected with the shell. The technical problem of screen black border broad among the prior art is aimed at solving to this application.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a sound output structure and an electronic device.
Background
With the rapid development of electronic devices, the display duty of the screen of the electronic device becomes a key parameter of interest, and a higher demand is put on the black edge width of the screen. In the related prior art, a sound outlet groove with a fixed width needs to be designed on a shell of the device, and in order to ensure reliability, enough glue dispensing width with a screen needs to be reserved close to the inner side of the sound outlet groove, so that the black edge of the screen is wide.
SUMMERY OF THE UTILITY MODEL
The application mainly aims to provide a sound component and electronic equipment, and aims to solve the technical problem that a screen black edge is wide in the prior art.
In order to solve the above technical problem, the present application provides an audio output assembly, including:
a screen;
a housing having a sound outlet slot; the screen is connected with the shell and forms an accommodating hole and an accommodating cavity with the shell; at least one part of the accommodating hole is arranged opposite to the sound outlet groove; and
the earphone decorating part comprises a base body and a sound outlet structure convexly arranged on the base body; the sound outlet structure is circumferentially fixed by the accommodating hole; the base body is provided with an extension section extending towards the accommodating cavity, and the extension section is fixedly connected with the shell.
In some embodiments, the housing has a bearing table, and at least a portion of a side of the base body facing away from the sound emitting structure is glued to the bearing table.
In some embodiments, the carrier comprises a first portion and a second portion connected to each other, and a projection of the sound emitting structure on the carrier is located on the first portion; the second part is a protruding structure formed by extending the bearing table towards the containing cavity, and one part of the extension section is glued with the second part.
In some embodiments, the protruding structure has a locating end face; one end of the extension section is connected with the sound outlet structure, and the other end of the extension section extends towards the positioning end face.
In some embodiments, the housing has a supporting platform, the sound outlet groove is disposed on the supporting platform, and the sound outlet structure has at least one sound outlet hole communicated with the sound outlet groove.
In some embodiments, the housing further has a first wall surface connected to the bearing surface of the bearing table, and the first wall surface is connected to at least a part of the outer circumferential surface of the sound emitting structure; the screen is provided with a second wall surface connected with the first wall surface, the first wall surface and the second wall surface enclose the containing hole to form the containing hole, and the second wall surface is connected with the other part of the peripheral surface of the sound emitting structure.
In some embodiments, an end surface of the sound outlet structure facing away from the base does not protrude beyond an end surface of the receiving hole facing away from the sound outlet groove.
In some embodiments, the sound output assembly further comprises: the first adhesive layer is arranged on one side of the base body, which is far away from the sound outlet structure; the dustproof net is arranged on one side, away from the base body, of the first adhesive layer; and the second adhesive layer is arranged on one side of the dustproof net deviating from the first adhesive layer, and the second adhesive layer is connected with the shell.
The present application further proposes an electronic device, comprising: a display panel; and an output assembly as previously described; the display panel is arranged in the accommodating cavity, and at least one part of the display panel is opposite to the screen display area of the screen.
In some embodiments, the size of the non-display area of the screen in the direction of extension of the stretch is no greater than 2.2 mm.
Among the technical scheme of this application, go out sound subassembly and include screen, casing and earphone decoration. The shell is connected with the screen and is formed with an accommodating hole and an accommodating cavity. The shell is provided with a sound outlet groove. The earphone decoration comprises a base body, wherein a sound outlet structure is convexly arranged on the base body, the sound outlet structure is circumferentially fixed through the accommodating hole, and at least one part of the accommodating hole is opposite to the sound outlet groove, so that sound can be output. The base body is provided with an extension section extending towards the accommodating cavity, and the extension section is fixedly connected with the shell. Because the extension section and the casing fixed connection that the orientation held the intracavity to extend, because it is fixed that the sound structure is kept by accepting hole circumference, the casing can be connected with the screen through the earphone decoration, has effectively strengthened the joint strength of casing and screen, and then can reduce the point of casing and screen and glue the width, and the black border width of screen reduces, adapts to the extremely narrow demand of frame.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, 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 top view of a preferred construction of the sound emitting assembly;
FIG. 2 is a schematic structural view of section A-A of FIG. 1;
FIG. 3 is a perspective reference view of a preferred construction of the sound emitting assembly;
FIG. 4 is a schematic top view of the assembly of the housing of the sound outputting assembly and the screen;
FIG. 5 is a side view of the assembly of the housing of the sound emitting assembly with the screen;
FIG. 6 is a schematic view of a preferred housing of the sound emitting assembly;
FIG. 7 is a schematic diagram of a preferred screen for the sound emitting assembly;
FIG. 8 is a schematic view of the assembly of the housing and earpiece trim
FIG. 9 is a perspective view of a preferred earpiece trim of the sound outlet assembly;
fig. 10 is a cross-sectional view of a preferred earpiece trim of the sound assembly.
List of reference numerals
| 10 | Containing |
| Bearing platform | |
| 20 | Containing |
200b | A |
|
| 100 | |
200a-1 | The |
|
| 200 | |
200a-2 | The |
|
| 300 | Earphone |
200a-3 | |
|
| 400 | |
200a-4 | Locating |
|
| 500 | First |
200a-5 | |
|
| 600 | Dust- |
300a | |
|
| 700 | Second |
300a-1 | |
|
| 100a | | 300b | Substrate | |
| | Display area | 300b-1 | |
|
| 100c | Non-display area |
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
It should be noted that all directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, 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, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both 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 application.
The embodiment of the application provides a sound emitting component for electronic equipment. The electronic equipment can be mobile terminals such as mobile phones and IPADs. Referring to fig. 1, 2, 3, 4 and 5, the sound emitting assembly includes:
a screen 100;
a housing 200, the housing 200 having a sound outlet groove 200 a-5; the screen 100 is connected with the housing 200 and forms a containing hole 10 and a containing cavity 20 with the housing 200; at least one part of the accommodating hole 10 is arranged opposite to the sound outlet groove 200 a-5; and
the earpiece decoration 300 includes a base 300b and a sound emitting structure 300a protruding from the base 300 b; the sound emitting structure 300a is circumferentially fixed by the receiving hole 10; the base 300b has an extension 300b-1 extending toward the receiving cavity 20, and the extension 300b-1 is fixedly connected to the housing 200.
In the embodiment of the present application, the sound emitting assembly includes a screen 100, a housing 200, and an earpiece decoration 300. The housing 200 is connected to the screen 100 and is formed with a receiving hole 10 and a receiving cavity 20. The housing 200 has a sound outlet groove 200 a-5. The earpiece decoration 300 includes a base 300b, a sound emitting structure 300a is protruded from the base 300b, the sound emitting structure 300a is circumferentially fixed by the receiving hole 10, and at least a part of the receiving hole 10 is disposed opposite to the sound emitting groove 200a-5, so that sound can be emitted. The base 300b has an extension 300b-1 extending toward the receiving chamber 20, and the extension 300b-1 is fixedly coupled to the housing 200. Because the extension segment 300b-1 extending towards the accommodating cavity 20 is fixedly connected with the casing 200, and the sound emitting structure 300a is circumferentially kept fixed by the accommodating hole 10, the casing 200 can be connected with the screen 100 through the earphone decoration 300, so that the connection strength of the casing 200 and the screen 100 is effectively enhanced, the dispensing width of the casing 200 and the screen 100 can be further reduced, the width of the black edge of the screen 100 is reduced, and the requirement of extremely narrow frames is met.
It should be noted that the screen 100 is generally a glass cover plate and has a thin-sheet structure. The case 200 is configured with a cavity, and after the screen 100 is covered on the case 200, a receiving cavity 20 is formed. Generally, the accommodating cavity 20 is provided with a display panel 400, and the display panel 400 faces the screen 100. The receiving hole 10 is also a hole-like structure formed by connecting the screen 100 and the housing 200. In general, the sound emitting structure 300a has a strip structure, and thus the receiving hole 10 is also formed in a strip structure matching the sound emitting structure 300 a.
In the present embodiment, as shown in fig. 9 and 10, the earpiece trim 300 is an integrally molded elastic member. The substrate 300b is generally a flat plate structure having an extension 300 b-1. The sound emitting structure 300a is protruded on the base 300b, and the protruding direction is perpendicular to the extending direction of the extending section 300 b-1. The sound output structure 300a has at least one sound output hole 300 a-1. The sound outlet hole 300a-1 is communicated with the sound outlet groove 200a-5, so that sound can be output. Generally, the sound outlet holes 300a-1 are multiple, and the multiple sound outlet holes 300a-1 are arranged in an array, such as a rectangular arrangement, a circular arrangement, or a linear arrangement or an arrangement presenting multiple patterns. In this embodiment, the sound outlet 300a-1 is linearly arranged, and the arrangement direction thereof is perpendicular to both the axial direction of the sound outlet 300a-1 and the extending direction of the extending section 300 b-1.
As an alternative to the above-mentioned embodiment, as shown in fig. 6 and 8, the housing 200 includes a bearing platform 200 a; at least a portion of the side of the base 300b facing away from the sound emitting structure 300a is glued to the carrier 200 a. The carrier 200a includes a first portion 200a-1 and a second portion 200a-2 that are connected to each other. Generally, the first portion 200a-1 of the carrier 200a is located on the rim of the housing 200, and the second portion 200a-2 is located in the receiving cavity 20, and the two portions are joined together and generally present a smooth transition. In some embodiments, the mobile terminal may have a camera structure, and thus the second portion 200a-2 may be configured with a mounting hole of the camera structure for mounting the camera structure. The projection of the sound emitting structure 300a on the bearing platform 200a is located on the first portion 200 a-1; namely, the sound emitting structure 300a is disposed corresponding to the edge position of the housing 200. The second part 200a-2 is a protruding structure formed by extending the carrier 200a towards the inside of the accommodating cavity 20, and the protruding structure has a positioning end face 200 a-4; the positioning end face 200a-4 is determined according to the design position of the camera module, and the positioning end face 200a-4 is located on the side of the camera module close to the sound outlet structure 300a, that is, the structure of the second portion 200a-2 is not easy to reduce the area of the accommodating cavity 20 for increasing the connection strength, so as to avoid occupying too much installation space of the display panel 400. One end of the extension 300b-1 is connected to the sound emitting structure 300a, one portion of the extension 300b-1 is bonded to the first portion, the other portion is bonded to the second portion, and the other end of the extension 300b-1 extends toward the positioning end face 200 a-4. That is, the other end of the extension 300b-1 extends toward the camera module, but does not extend to the camera module. The positioning end surface 200a-4 can also be used for auxiliary positioning when the earpiece trim 300 is installed, so that the installation position of the earpiece trim 300 is reliable.
As an alternative to the above embodiment, as shown in fig. 6, the sound outlet grooves 200a-5 are disposed on the carrier 200a, and at least a portion of a side surface of the base 300b facing away from the sound outlet structure 300a is glued to the carrier 200 a. Due to the arrangement of the extension section 300b-1 and the second part 200a-2, the installation area of the earphone decoration 300 is increased, so that the area of the dispensing area of the earphone decoration 300 and the housing 200 can be increased during dispensing operation, and the technical problem that the earphone decoration 300 is difficult to dispense due to the arrangement of the earphone sound outlet groove 200a-5 in the prior art is solved.
As an alternative to the above embodiment, shown in FIG. 10, the extension length L of the extension 300b-1 is2Is not more than 1.6 mm. The extension length of the extension 300b-1 is determined mainly according to the positional relationship between the sound outlet groove 200a-5 and the camera mounting hole. The extension section 300b-1 is mainly used to increase the adhesive surface between the earpiece decoration 300 and the casing 200, so as to improve the connection strength between the casing 200 and the screen 100, but in order to meet the development requirement of the full-face screen of the mobile phone, the extension length of the extension section 300b-1 is not too large. Extension length L of extension 300b-12Comprises the following steps: the vertical distance from the side of the sound emitting structure 300a facing the positioning end face 200a-4 to the positioning end face 200a-4 is subtracted by the interval between the positioning end face 200a-4 and the extension 300b-1, that is, the distance from the end of the extension 300b-1 intersecting the sound emitting structure 300a facing the positioning end face 200a-4 to the other end, specifically referring to fig. 10. Generally, the extension length is not less than 0.8 mm. For example, the extension may be 0.8mm, 1.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, etc.
As an alternative to the above embodiment, as shown in FIG. 2, the sound emitting structure 300a has a dimension L in the extending direction of the extension 300b-13Is not more than 0.7 mm. For the sake of compactness, the dimension of the sound emitting structure 300a in the extending direction of the extension 300b-1, i.e., the width of the sound emitting structure 300a, is not more than 0.7 mm. Typically, the width of the sound emitting structure 300a is between 0.6mm and 0.7 mm.
As an alternative to the above embodiment, as shown in fig. 3, the end surface of the sound emitting structure facing away from the base 300b does not protrude from the end surface of the receiving hole 10 facing away from the sound emitting groove 200 a-5. Namely: the sound emitting structure is located in the receiving hole 10, or the end surface of the thyme base 300b of the sound emitting structure is flush with the end surface of the receiving hole 10 departing from the sound emitting groove 200a-5, so that the receiving hole 10 can protect the sound emitting structure. In general, since the edge of the screen 100 is curved, the end surface of the receiving hole 10 away from the sound outlet groove 200a-5 is gradually curved; in order to improve the quality, the end surface of the sound emitting structure, which is away from the base 300b, is also a gradually changing curved surface, and is flush with the end surface of the accommodating hole 10, which is away from the sound emitting groove 200a-5, and the appearance is also improved. The maximum height of the sound emitting structure protruding from the base 300b may be 0.82(-0.05, +0.05) mm.
As an alternative embodiment of the above embodiment, as shown in fig. 4, 6 and 7, the housing 200 further includes a first wall 200b connected to the bearing surface 200a-3 of the bearing table 200a, and the first wall 200b is connected to at least a part of the outer peripheral surface of the sound emitting structure 300 a. The carrying surface 200a-3 is the surface of the carrying platform 200a, and the earpiece decoration 300 is glued on the carrying surface 200 a-3. The housing 200 has a first wall 200b connected to the support surface 200a-3, the first wall 200b being connected to at least a portion of the outer circumferential surface of the sound emitting structure 300 a; in general, the first wall 200b may be configured with a slot, and the outer peripheral surface of the sound emitting structure 300a may be configured with a matching strip; and/or, during assembly, glue may be applied to the first wall 200b to adhere to at least a portion of the outer periphery of the sound emitting structure 300 a. The screen 100 has a second wall surface 100a connected to the first wall surface 200b, the first wall surface 200b and the second wall surface 100a enclose the receiving hole 10, when the screen 100 is covered on the casing 200, the first wall surface 200b is connected to the second wall surface 100a, and in general, both ends of the first wall surface 200b are bent in the direction of the receiving cavity 20 to form an arc surface; the two ends of the second wall surface 100a are bent in the direction departing from the accommodating cavity 20 to form arc surfaces, and are connected with the two arc surfaces of the first arc surface in a one-to-one correspondence manner, so as to form an accommodating hole 10 in a surrounding manner; the second wall surface 100a is connected to another part of the outer circumferential surface of the sound emitting structure 300a, so that the sound emitting structure 300a is circumferentially held and fixed by the receiving hole 10. In some embodiments, a slot may be formed on the second wall 100a, and a mating strip may be formed on the outer circumferential surface of the sound outlet structure 300 a; and/or, during assembly, glue is applied to the second wall 100a to adhere to at least a portion of the outer periphery of the sound emitting structure 300 a.
As an alternative to the above embodiment, as shown in fig. 10, in order to prevent the ash layer from entering into the sound outlet groove 200a-5, the sound outlet assembly further includes a dust screen 600. The dust screen 600 may be a nylon mesh. The sound output assembly further comprises: the first adhesive layer 500 is arranged on one side of the substrate 300b, which is far away from the sound emitting structure 300 a; the dust-proof net 600 is arranged on one side of the first adhesive layer 500 deviating from the base 300 b; and the second adhesive layer 700, the second adhesive layer 700 is arranged on one side of the dust screen 600 departing from the first adhesive layer 500, and the second adhesive layer 700 is connected with the shell 200. The second adhesive layer 700 is generally coated on the bearing surface 200a-3, and the coated area of the second adhesive layer 700 is increased, so that the problem that the adhesive dispensing width is narrow due to the arrangement of the sound outlet groove 200a-5, and the adhesive dispensing cannot be performed can be solved. Generally, the thickness of the second adhesive layer 700 is greater than that of the first adhesive layer 500 for the sake of compactness and stability of the structure, so as to firmly mount the earpiece decoration 300 on the carrier 200 a. For example, the thickness of the second adhesive layer 700 is 0.1mm, and the thickness of the first adhesive layer 500 is 0.05 mm; and, in general, the thickness of the base 300b is 0.25mm and the thickness of the dust screen 600 is 0.05 mm.
The present application further provides an electronic device, shown in fig. 2, including: a display panel 400 and an audio output assembly. The electronic device has the advantages of the above embodiments because the sound emitting component adopts at least one of the above embodiments. The display panel 400 is disposed in the accommodating cavity 20, and at least a portion of the display panel 400 is opposite to the display area 100b of the screen 100, so that the display panel 400 displays on the display area 100b of the screen 100 in an operating state. The display panel 400 may be an LCD. A gap L between the display panel 400 and the case 2004Is 0.4 mm; the gap is a distance between the display panel 400 and the housing 200 in the extending direction of the extension 300 b-1.
Moreover, the electronic device further includes an earpiece, a battery, a rear case, a memory, a processor, and the like, which are not described in detail herein since the improvement of the present application is not involved.
As an alternative to the above embodiment, as shown in FIG. 2, the size L of the non-display area 100c of the screen 100 in the extending direction of the extension 300b-1 is1Is not more than 2.2 mm. In the present embodiment, the width (black border width L) of the non-display area 100c of the screen 100 is determined by the extension 300b-1 of the earpiece trim 3001) Can be not more than 2.2mm, compared with 2.7mm of some products, the reduction is 0.5mm, the reduction ratio is about 18.5%, and the screen occupation ratio and the extremely narrow frame of the screen 100 are favorably improved.
The above description is only an alternative embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the subject matter of the present application, which are made by the following claims and their equivalents, or which are directly or indirectly applicable to other related arts, are intended to be included within the scope of the present application.
Claims (10)
1. An audio output assembly, comprising:
a screen;
the casing is provided with a sound outlet groove; the screen is connected with the shell and forms an accommodating hole and an accommodating cavity with the shell; at least one part of the accommodating hole is arranged opposite to the sound outlet groove; and
the earphone decorating part comprises a base body and a sound outlet structure convexly arranged on the base body; the sound outlet structure is circumferentially fixed by the accommodating hole; the base body is provided with an extension section extending towards the accommodating cavity, and the extension section is fixedly connected with the shell.
2. The sound emitting assembly of claim 1, wherein the housing has a carrier, and at least a portion of a side of the base facing away from the sound emitting structure is glued to the carrier.
3. The sound emitting assembly of claim 2, wherein the carrier comprises a first portion and a second portion connected to each other, and a projection of the sound emitting structure on the carrier is located on the first portion;
the second part is a protruding structure formed by extending the plummer towards the containing cavity, and one part of the extension section is glued with the second part.
4. The sound assembly of claim 3, wherein the projection structure has a locating end surface; one end of the extension section is connected with the sound outlet structure, and the other end of the extension section extends towards the positioning end face.
5. The sound emitting assembly of claim 2, wherein the sound emitting groove is disposed on the carrier, and the sound emitting structure has at least one sound emitting hole communicating with the sound emitting groove.
6. The sound emitting assembly of claim 2, wherein the housing further has a first wall surface connected to the bearing surface of the bearing platform, the first wall surface being connected to at least a portion of the outer circumferential surface of the sound emitting structure;
the screen is provided with a second wall surface connected with the first wall surface, the projection of the second wall surface on the bearing platform is positioned at the first part, the first wall surface and the second wall surface enclose the containing hole, and the second wall surface is connected with the other part of the peripheral surface of the sound emitting structure.
7. The sound emitting assembly of claim 1, wherein an end surface of the sound emitting structure facing away from the base does not protrude beyond an end surface of the receiving hole facing away from the sound emitting groove.
8. The sound output assembly of claim 1, wherein the sound output assembly further comprises:
the first adhesive layer is arranged on one side of the base body, which is far away from the sound outlet structure;
the dustproof net is arranged on one side, away from the base body, of the first adhesive layer; and
the second glue film, the second glue film is located the dust screen deviates from one side of first glue film, just the second glue film with the casing is connected.
9. An electronic device, comprising:
a display panel; and
the sound emitting assembly of any one of claims 1 to 8; the display panel is arranged in the accommodating cavity, and at least one part of the display panel is opposite to the screen display area of the screen.
10. The electronic device of claim 9, wherein a size of the non-display area of the screen in the extending direction of the extension is not more than 2.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220136751.6U CN216700053U (en) | 2022-01-18 | 2022-01-18 | Sound output assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220136751.6U CN216700053U (en) | 2022-01-18 | 2022-01-18 | Sound output assembly and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216700053U true CN216700053U (en) | 2022-06-07 |
Family
ID=81825923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220136751.6U Active CN216700053U (en) | 2022-01-18 | 2022-01-18 | Sound output assembly and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216700053U (en) |
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2022
- 2022-01-18 CN CN202220136751.6U patent/CN216700053U/en active Active
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