Sound absorption material bag, loudspeaker and electronic equipment

Abstract

The utility model provides a sound absorption material bag, loudspeaker and electronic equipment, wherein the bag body comprises flexible mesh cloth and a metal support skeleton used for supporting the edge of the flexible mesh cloth, and the edge of the flexible mesh cloth forms an opening. The bag body of the sound absorption material bag provided by the utility model comprises the flexible mesh cloth and the metal support framework used for supporting the edge of the flexible mesh cloth, namely the bag body is of the porous breathable mesh structure, so that the height of the sound absorption material bag can be maximized, and the position of the sound absorption material bag in the rear cavity of the loudspeaker is not limited; therefore, the space utilization rate of the rear cavity of the loudspeaker is improved, and the sound absorption efficiency of the sound absorption material is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sound-absorbing material package, a loudspeaker and electronic equipment belong to electroacoustic product technical field. BACKGROUND

[0002] There are many filling methods when the sound-absorbing particles are applied to the sound box body, which can be full tank or can be made into Blister powder package, that is, sound-absorbing particle material package. The current Blister powder package usually includes a bag for containing sound-absorbing particle material and wool paper or mesh arranged on the bag body, and adhesive arranged under the bag body. When the sound-absorbing particles are made into Blister powder package and then the Blister powder package is placed inside the sound box body, the low frequency effect is improved. This sound-absorbing particle material package has simple assembly process when used. After the powder package is formed, it can be used as a component and directly adhered to the inside of the box body by adhesive, or fixed in the sound box body by hot melting, gluing and other methods, or freely placed in the sound box body. However, since the bag body material (such as PET, PEN, etc.) of the current Blister powder package is not breathable, the Blister powder package needs to be placed inside the sound box body with a height lower than the total height of the sound box interior, so that there is a certain airflow space above the wool paper or mesh and the sound box body interior, thereby the product is obviously limited in height, as shown in Figure 4 The size A needs to be greater than or equal to 0.5mm, otherwise the airflow cannot pass through the sound-absorbing material; the size B needs to be greater than or equal to 0.15mm.

[0003] Therefore, it has become a technical problem to be solved in the field to provide a novel sound-absorbing material package, a loudspeaker and electronic equipment. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above-mentioned shortcomings and deficiencies, the purpose of the utility model is to provide a sound-absorbing material package, a loudspeaker and electronic equipment. The bag body of the sound-absorbing material package provided by the utility model includes a metal support framework and a flexible mesh, and the mutual cooperation of the two determines a thinner powder package packaging size and a full filling capacity, thereby achieving better ventilation and shaping effect.

[0005] In order to achieve the above purpose, on the one hand, the utility model provides a sound-absorbing material package, which includes a bag body for containing sound-absorbing material, wherein the bag body includes a flexible mesh and a metal support framework for supporting the edge of the flexible mesh, and the edge of the flexible mesh forms an opening.

[0006] The utility model makes no specific requirements to the shape of the package body, and reasonable selection can be made as required. In some embodiments of the utility model, the package body can be consistent with the shape of the rear cavity of the loudspeaker in at least one dimension. In addition, the utility model makes no specific requirements to the shape of the metal support framework, and reasonable selection can be made as required. For example, in some embodiments of the utility model, the metal support framework can be a stick-shaped or the like.

[0007] As a specific embodiment of the sound-absorbing material package described above, the acoustic resistance of the flexible mesh cloth is less than 25 Rayleigh.

[0008] As a specific embodiment of the sound-absorbing material package described above, the material of the flexible mesh cloth includes cotton yarn, silk, conex, polyurethane mesh cloth, nylon mesh cloth, polyethylene, or polyimide fiber, etc. The cotton yarn, silk, conex, polyurethane mesh cloth, nylon mesh cloth, polyethylene, polyimide fiber, etc. used in the utility model are all conventional materials available on the market and can be obtained through commercial purchase. For example, the conex is a meta-aramid fiber produced by Teijin Company of Japan.

[0009] As a specific embodiment of the sound-absorbing material package described above, the material of the metal support framework includes one of aluminum, copper, iron, nickel, tungsten, alloys thereof, or stainless steel, etc.

[0010] As a specific embodiment of the sound-absorbing material package described above, the opening is provided with a shielding layer.

[0011] In the sound-absorbing material package described above, the package body includes a flexible mesh cloth and a metal support framework for supporting the edge of the flexible mesh cloth, that is, the package body is a porous and breathable mesh structure, so the utility model does not limit whether the material of the shielding layer is breathable.

[0012] As a specific embodiment of the sound-absorbing material package described above, the material of the shielding layer is a breathable material or a non-breathable material.

[0013] As a specific embodiment of the sound-absorbing material package described above, the breathable material includes wool paper, mesh cloth, or metal mesh, etc.

[0014] And / or the non-breathable material is a plastic material or a metal material, wherein the plastic material includes PET, PEN, PC, PPA, or glass fiber reinforced PPA.

[0015] The material of the metal mesh can be stainless steel, aluminum, copper, or iron, etc. The shielding layer of the breathable material can be fixed at the opening of the package body by means of gluing, hot melting, hot riveting, etc.

[0016] The metal material can also be stainless steel, aluminum, copper, iron, or the like.

[0017] As a specific embodiment of the sound-absorbing material package described above, the sound-absorbing material includes sound-absorbing material particles, sound-absorbing material sheets, or sound-absorbing material blocks, etc.

[0018] On the other hand, the utility model also provides a loudspeaker, including one or more acoustic sensors, one or more housings, one or more acoustic sensors and one or more housings combination form loudspeaker back cavity, wherein, the loudspeaker back cavity is equipped with the sound-absorbing material package described above.

[0019] As a specific embodiment of the loudspeaker described above, the loudspeaker is a small loudspeaker.

[0020] As a specific embodiment of the loudspeaker described above, the sound-absorbing material package is fixed to the inner wall of the loudspeaker back cavity through the adhesive layer.

[0021] In the utility model, the sound-absorbing material package is fixed to the inner wall of the loudspeaker back cavity through the adhesive layer, which can avoid the noise generated by the metal support framework in the sound-absorbing material package when it is hit.

[0022] In the sound-absorbing material package described above, the package body is a porous and breathable mesh structure, so the material of the adhesive layer is not limited.

[0023] As a specific embodiment of the loudspeaker described above, the adhesive layer is a back adhesive layer or a cushioning material layer.

[0024] As a specific embodiment of the loudspeaker described above, the back adhesive layer includes Tesa68542 adhesive tape, etc., and the material of the cushioning material layer includes melamine, etc.

[0025] As a specific embodiment of the loudspeaker described above, when the material of the shielding layer is a non-breathable material and the opening is provided with a shielding layer, the adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is arranged on the outside of the package body opposite to the opening side, and the second adhesive layer is arranged on the side of the shielding layer opposite to the package body.

[0026] In another aspect, the utility model also provides an electronic device, wherein the loudspeaker of the electronic device is the loudspeaker described above.

[0027] As a specific embodiment of the electronic device described above, the electronic device includes a smart phone, a TWS earphone, a headset, smart glasses, a smart watch, a VR device, an AR device, a tablet computer, a light and thin notebook computer, a portable sound box, a television or an electric vehicle, etc.

[0028] Compared with the prior art, the beneficial technical effects achieved by the utility model include:

[0029] The package body of the sound absorption material package includes a flexible mesh cloth and a metal support framework for supporting the edge of the flexible mesh cloth, that is, the package body is a porous and breathable mesh structure, so that the height of the sound absorption material package can be maximized, and the position of the sound absorption material package in the rear cavity of the loudspeaker is not limited, thereby improving the space utilization rate of the rear cavity of the loudspeaker and also improving the sound absorption efficiency of the sound absorption material. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0031] Figure 1 The bottom view of the sound absorption material package provided for the embodiment 1 of the utility model.

[0032] Figure 2 The top view of the sound absorption material package provided for the embodiment 1 of the utility model.

[0033] Figure 3 The explosion view of the sound absorption material package provided for the embodiment 1 of the utility model.

[0034] Figure 4 The schematic view of the sound absorption material package provided for the comparative example 1 assembled in the rear cavity of the loudspeaker.

[0035] Figure 5 The schematic view of the sound absorption material package provided for the embodiment 1 of the utility model assembled in the rear cavity of the loudspeaker.

[0036] MAIN DRAWING NUMBER EXPLANATION:

[0037] 001, shielding layer;

[0038] 002, sound absorption material;

[0039] 003, package body;

[0040] 0031, flexible mesh cloth;

[0041] 0032、metallic support framework

[0042] 004、first adhesive layer

[0043] 100、absorbing material package DETAILED DESCRIPTION

[0044] It should be noted that the terms "comprise", "comprising", "include", "including", "contain", "containing", "have" and "having" used in the specification and the claims of the present application and the above-described accompanying drawings are intended to cover not only the cases where the stated steps or elements are present but also the cases where the stated steps or elements are not present or additional steps or elements are present.

[0045] In the present application, the terms "upper", "lower", "inner", "outer", "middle", "top" and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0047] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "set", "connected or connected" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally constructed; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The ranges recited in the context of the present application are inclusive of the recited minimum and maximum values, unless otherwise indicated. Ranges can be provided with one or more lower limits, and one or more upper limits. The ranges are provided by selecting a lower limit and an upper limit. The selected lower and upper limits define the boundaries of a particular range. All ranges defined in this manner are combinable, i.e., any lower limit can be combined with any upper limit to form a range. For example, where ranges of 60-120 and 80-110 are listed for a particular parameter, it is understood that ranges of 60-110 and 80-120 are also contemplated. In addition, if a minimum range value of 1 and 2 is listed, and a maximum range value of 3, 4, and 5 is listed, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5.

[0049] In the present application, unless otherwise stated, the numerical range "a-b" represents a shorthand manner of describing the inclusion of any real combination of numbers between "a" and "b", where "a" and "b" are both real numbers. For example, the numerical range "0-5" represents that all real numbers between "0-5" have been listed in the present application, and "0-5" is just a shorthand representation of these numerical combinations.

[0050] In the present application, unless otherwise stated, all embodiments and preferred embodiments mentioned in the present application can be combined with each other to form new technical solutions.

[0051] In the present application, unless otherwise stated, all technical features and preferred features mentioned in the present application can be combined with each other to form new technical solutions.

[0052] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the accompanying tables, drawings and examples. The following described examples are part of the examples of the present application, but not all the examples, and are only used to illustrate the present application, and should not be regarded as limiting the scope of the present application. The examples of the described examples are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The examples described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative labor are within the scope of protection of the present application. The specific conditions are not specified in the examples, and are carried out according to the conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are not specified by the manufacturer, and are all conventional products that can be purchased on the market.

[0053] Example 1

[0054] The embodiment provides a sound-absorbing material package 100, a bottom view, a top view and an exploded view of which are shown in Figures 1-3 As can be seen from Figures 1-3 , the sound-absorbing material package 100 comprises:

[0055] a package body 003 for containing sound-absorbing material 002, a shielding layer 001 and a first adhesive layer 004, the package body 003 comprises a flexible mesh cloth 0031 and a metal supporting framework 0032 for supporting edges of the flexible mesh cloth 0031, the package body 003 is box-shaped and edges of the flexible mesh cloth 0031 form an opening, the shielding layer 001 is arranged at the opening, and the first adhesive layer 004 is arranged outside (a bottom shown in Figure 3 ) of the package body 003 on a side opposite to the opening of the package body 003;

[0056] wherein a material of the shielding layer 001 is wool paper;

[0057] the metal supporting framework 0032 is an aluminum alloy framework which is a strip stick, and the flexible mesh cloth 0031 is a mesh cloth woven by polyamide mesh gauze;

[0058] the sound-absorbing material 002 is granular sound-absorbing material;

[0059] the first adhesive layer 004 is a back adhesive layer, and the back adhesive layer is a Tesa 68542 adhesive tape.

[0060] Embodiment 2

[0061] The embodiment provides a sound-absorbing material package 100, a bottom view, a top view and an exploded view of which are shown in Figures 1-3 As can be seen from Figures 1-3 , the sound-absorbing material package 100 comprises:

[0062] a package body 003 for containing sound-absorbing material 002, a shielding layer 001 and a first adhesive layer 004, the package body 003 comprises a flexible mesh cloth 0031 and a metal supporting framework 0032 for supporting edges of the flexible mesh cloth 0031, the package body 003 is box-shaped and edges of the flexible mesh cloth 0031 form an opening, the shielding layer 001 is arranged at the opening, and the first adhesive layer 004 is arranged outside (a bottom shown in Figure 3 ) of the package body 003 on a side opposite to the opening of the package body 003;

[0063] wherein a material of the shielding layer 001 is PET;

[0064] the metal supporting framework 0032 is a stainless steel framework which is a strip stick, and the flexible mesh cloth 0031 is cotton mesh cloth;

[0065] The sound-absorbing material 002 is a sheet-like sound-absorbing material, i.e. a sound-absorbing material sheet;

[0066] The first adhesive layer 004 is a back adhesive layer, which is a Tesa 68542 tape.

[0067] Example 3

[0068] This example provides a sound-absorbing material package 100, whose bottom view, top view and exploded view are shown in Figures 1-3 As can be seen from Figures 1-3 , the sound-absorbing material package 100 comprises:

[0069] a package body 003 for containing the sound-absorbing material 002, a shielding layer 001 and a first adhesive layer 004, the package body 003 comprises a flexible mesh cloth 0031 and a metal supporting framework 0032 for supporting the edges of the flexible mesh cloth 0031, the package body 003 is box-shaped and the edges of the flexible mesh cloth 0031 form an opening, the shielding layer 001 is arranged at the opening, and the first adhesive layer 004 is arranged on the outside of the package body 003 away from the opening side (the bottom shown in Figure 3 );

[0070] The shielding layer 001 is made of PET;

[0071] The metal supporting framework 0032 is a stainless steel framework, which is a stick-shaped, and the flexible mesh cloth 0031 is made of conex;

[0072] The sound-absorbing material 002 is a block-shaped sound-absorbing material;

[0073] The first adhesive layer 004 is a back adhesive layer, which is a Tesa 68542 tape.

[0074] Example 4

[0075] This example provides a sound-absorbing material package 100, whose bottom view, top view and exploded view are shown in Figures 1-3 As can be seen from Figures 1-3 , the sound-absorbing material package 100 comprises:

[0076] a package body 003 for containing the sound-absorbing material 002, a shielding layer 001 and a first adhesive layer 004, the package body 003 comprises a flexible mesh cloth 0031 and a metal supporting framework 0032 for supporting the edges of the flexible mesh cloth 0031, the package body 003 is box-shaped and the edges of the flexible mesh cloth 0031 form an opening, the shielding layer 001 is arranged at the opening, and the first adhesive layer 004 is arranged on the outside of the package body 003 away from the opening side (the bottom shown in Figure 3 );

[0077] The shielding layer 001 is made of PPA+glass fiber plastic material, that is, glass fiber reinforced PPA plastic material;

[0078] The metal support frame 0032 is an iron frame, which is in the shape of strips, and the flexible mesh fabric 0031 is a mesh fabric woven from silk.

[0079] The sound-absorbing material 002 is a sound-absorbing block;

[0080] The first adhesive layer 004 is a backing layer, which is Tesa 68542 tape.

[0081] Comparative Example 1

[0082] This comparative example provides a sound-absorbing material package 100, whose structure is similar to the sound-absorbing material package provided in Embodiment 1, including: a package body 003 for holding sound-absorbing material 002, a shielding layer 001, and a first adhesive layer 004. The package body 003 is box-shaped and has an opening, the shielding layer 001 is disposed at the opening, and the first adhesive layer 004 is disposed on the outside of the package body 003 on the side opposite to its opening. Figure 3 (as shown at the bottom);

[0083] The material of the package body 003, excluding the metal support frame, is PET.

[0084] The shielding layer 001 is a mesh fabric;

[0085] The first adhesive layer is a backing layer, which is Tesa 68542 tape;

[0086] The sound-absorbing material is a granular sound-absorbing material.

[0087] The sound-absorbing material packages provided in Embodiment 1 and Comparative Example 1 of this utility model are respectively assembled into the rear cavity of the speaker, such as in a 3411box, as shown in the schematic diagrams below. Figure 5 and Figure 4 As shown. From Figure 4 As can be seen from the example, since the sound-absorbing material package provided in Comparative Example 1 is made of non-permeable material, dimension A must be ≥ 0.5 mm. If dimension A is too small, it can easily cause airflow obstruction, thus affecting the sound absorption efficiency of the sound-absorbing material. Figure 5 As shown, since the sound-absorbing material package provided in Embodiment 1 of this utility model has a porous breathable mesh as its body, which is a breathable material, the height of the sound-absorbing material package can be maximized, the amount of sound-absorbing material contained in the package is also increased, and the position of the sound-absorbing material package in the rear cavity of the speaker is not restricted. Thus, while improving the space utilization of the rear cavity of the speaker, the sound absorption efficiency of the sound-absorbing material is also improved.

[0088] Test Example 1

[0089] The test example first assembles the sound absorption material packs provided by the comparative example 1 and the utility model embodiment 1 in the rear cavity of the loudspeaker, such as 3411 box, and then uses the soundcheck 15.0 test equipment to measure the SPL (Sound Pressure Level, i.e. sound pressure level or sound pressure level) of 3411 box and the 3411 box respectively assembled with the sound absorption material packs provided by the comparative example 1 and the utility model embodiment 1 at 2.83V, 5cm free field test method, and the obtained experimental results are shown in Table 1 respectively, wherein the 3411 box and the 3411 box respectively assembled with the sound absorption material packs provided by the comparative example 1 and the utility model embodiment 1 are respectively denoted as b0, b1 and b2.

[0090] Table 1

[0091]

[0092] As can be seen from Table 1, since the pack body of the sound absorption material pack provided by the comparative example 1 is a non-breathable material, at this time the A size is required to be greater than or equal to 0.5mm, if the A size is small, it is easy to cause the airflow not to be smooth, and the limitation of this structure leads to that the amount of sound absorption material in the sound absorption material pack provided by the comparative example 1 is difficult to maximize; and the pack body of the sound absorption material pack provided by the utility model embodiment 1 is a porous breathable net, which is a breathable material, and has better breathability, so that the height of the sound absorption material pack can be maximized, and the amount of sound absorption material contained in the pack body can be maximized, so that the sound absorption efficiency of the sound absorption material is better.

[0093] As can be seen from Table 1, compared with the sound absorption material pack provided by the comparative example 1, the sound absorption material pack provided by the utility model embodiment 1 has better low-frequency extension effect of SPL, and better flatness and elasticity of medium frequency; as shown in Table 1, the SPL in the low frequency of 100-400Hz is improved by 1-5dB.

[0094] In addition, the sound absorption material pack provided by the utility model embodiment 1 has obvious reduction of F0 while extending the SPL low frequency, and the F0 data of b0, b1 and b2 are shown in Table 2.

[0095] Table 2

[0096] F0 [Hz] b0 522.05 b1 460.75 b2 424.63

[0097] It can be seen from Table 2 that the F0 of the 3411 box without assembling any sound-absorbing material package is 522.05 Hz, the F0 of the 3411 box assembled with the sound-absorbing material package provided in the proportion 1 is reduced by about 62 Hz, and the F0 of the 3411 box assembled with the sound-absorbing material package provided in the embodiment 1 of the utility model can be reduced by 36 Hz on the basis of b1 with the increase of the amount of sound-absorbing material.

[0098] In conclusion, the package body of the sound-absorbing material package provided in the embodiment of the utility model comprises a flexible mesh cloth and a metal supporting framework for supporting the edge of the flexible mesh cloth, that is, the package body is a porous and breathable mesh structure, so that the height of the sound-absorbing material package can be maximized, and the position of the sound-absorbing material package in the rear cavity of the loudspeaker is not limited, thereby improving the space utilization rate of the rear cavity of the loudspeaker and the sound-absorbing efficiency of the sound-absorbing material.

[0099] The above is only a specific embodiment of the utility model, and cannot limit the range of the utility model, so the replacement of equivalent components or equivalent changes and modifications made in the protection range of the utility model patent should still belong to the scope covered by the patent.

Claims

1. A sound-absorbing material package, comprising a package body for containing the sound-absorbing material, characterized in that, The package includes a flexible mesh fabric and a metal support frame for supporting the edges of the flexible mesh fabric, with the edges of the flexible mesh fabric forming an opening.

2. The sound-absorbing material package according to claim 1, characterized in that, The acoustic impedance of the flexible mesh is less than 25 Rayles.

3. The sound-absorbing material package according to claim 1 or 2, characterized in that, The flexible mesh fabric is made of materials including cotton yarn, silk, Conex, polyurethane mesh, nylon mesh, polyethylene, or polyimide fiber.

4. The sound-absorbing material package according to claim 1, characterized in that, The metal support frame is made of one of the following materials: aluminum, copper, iron, nickel, tungsten and their alloys, or stainless steel.

5. The sound-absorbing material package according to any one of claims 1-2, 4, characterized in that, A shielding layer is provided at the opening.

6. The sound-absorbing material package according to claim 5, characterized in that, The shielding layer is made of either a breathable or non-breathable material.

7. The sound-absorbing material package according to claim 6, characterized in that, The breathable material includes wool paper, mesh fabric, or metal mesh; And / or the non-breathable material is a plastic material or a metal material, wherein the plastic material includes PET, PEN, PC, PPA or glass fiber reinforced PPA.

8. The sound-absorbing material package according to any one of claims 1-2, 4, characterized in that, The sound-absorbing material includes sound-absorbing material particles, sound-absorbing material sheets, or sound-absorbing material blocks.

9. A loudspeaker, comprising one or more acoustic sensors and one or more housings, wherein the one or more acoustic sensors and the one or more housings are combined to form a rear cavity of the loudspeaker, characterized in that, The rear cavity of the loudspeaker is equipped with a sound-absorbing material package as described in any one of claims 1-8.

10. The loudspeaker according to claim 9, characterized in that, The speaker is a small speaker.

11. The loudspeaker according to claim 9 or 10, characterized in that, The sound-absorbing material package is fixed to the inner wall of the rear cavity of the loudspeaker by an adhesive layer.

12. The loudspeaker according to claim 11, characterized in that, The adhesive layer is either a backing layer or a cushioning material layer.

13. The loudspeaker according to claim 12, characterized in that, When the shielding layer is made of a non-breathable material and a shielding layer is provided at the opening, the adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is provided on the outside of the package body facing away from its opening, and the second adhesive layer is provided on the side of the shielding layer facing away from the package body.

14. An electronic device, characterized in that, The speaker of the electronic device is the speaker according to any one of claims 9-13.

15. The electronic device according to claim 14, characterized in that, The electronic devices include smartphones, TWS earphones, headphones, smart glasses, smartwatches, VR devices, AR devices, tablets, thin and light laptops, portable speakers, televisions, or electric vehicles.

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