Loudspeaker, open headphone and sound production equipment

Abstract

The utility model relates to the technical field of loudspeakers. The loudspeaker comprises a T-shaped iron stand, the T-shaped iron stand comprises a hollow cylinder and an extension body, and the extension body is arranged outside one end of the cylinder; the magnet is arranged on the extension body, and the magnet and the outer surface of the column body are arranged at intervals; the washer is arranged on one side, far away from the extension body, of the magnet; the bracket is connected with one side surface, far away from the magnet, of the washer; the voice coil is arranged in an accommodating space between the column body and the magnet; the vibrating diaphragm is respectively connected with the bracket and one end of the voice coil; and at least two suspension dampers which are respectively connected with the other end of the voice coil and the support. According to the embodiment of the utility model, the hollow hole penetrating through the loudspeaker is formed in the middle, the voice coil is arranged in the space between the T-shaped iron frame and the magnet, and the vibrating diaphragm and the suspension damper suspend the voice coil, so that the stability of vertical movement of the voice coil is ensured, the voice coil is prevented from touching the T-shaped iron frame and the magnet, and the tone quality of the loudspeaker is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of loudspeakers, specifically to loudspeakers, open-back headphones, and sound-generating devices. Background Technology

[0002] A loudspeaker, also known as a horn, is a device that primarily plays sound; it's an electroacoustic transducer that converts electrical signals into sound signals. Loudspeakers have a wide range of applications, basically covering audio equipment, communications, automobiles, and home appliances. Among these, audio equipment and headphones are the main application areas for loudspeakers.

[0003] In the process of realizing this utility model, the inventors discovered that: currently, when the speaker of a headset is working, the sound pressure generated by the vibration of the front of the speaker can cause damage to the eardrum if the user wears the headset for a long time. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a vibrating diaphragm that overcomes or at least partially solves the above problems.

[0005] In a first aspect, this utility model embodiment provides a loudspeaker, the loudspeaker comprising: a T-frame, the T-frame comprising a hollow column and an extension, the extension being disposed outside one end of the column;

[0006] A magnet is disposed on the extension body and spaced apart from the outer surface of the column.

[0007] The washer is located on the side of the magnet away from the extension body;

[0008] A bracket is connected and installed to the side of the washer away from the magnet.

[0009] A voice coil is disposed in the accommodating space between the cylinder and the magnet;

[0010] The diaphragm is connected and installed to the bracket and one end of the voice coil, respectively; and,

[0011] At least two suspended spiders are connected to the other end of the voice coil and the support, respectively.

[0012] Furthermore, the magnet includes at least a first magnet and a second magnet, with the first magnet and the second magnet disposed at a distance on the T-shaped iron frame.

[0013] Furthermore, the magnet is provided with at least two evenly distributed recesses for mounting the suspension wave.

[0014] Furthermore, the suspended spring includes a first mounting part, a folding part, and a second mounting part. The folding part is fixedly connected to the first mounting part and the second mounting part, respectively. The first mounting part is connected to the bracket, and the second mounting part is connected to the voice coil.

[0015] Furthermore, the folded portion includes at least one protrusion and a recessed pleated structure.

[0016] Furthermore, the bracket is a ring-shaped structure, and a first space and a second space are respectively provided on both sides of the bracket. The first space is connected to the vibrating diaphragm, the magnet is located in the second space, and the second space has a notch for use in accommodating the suspension wave installation.

[0017] Furthermore, the diaphragm includes a paper disc and a bent portion, the paper disc is fixedly connected to the bent portion, the inner edge of the paper disc is connected to the voice coil, and the bent portion is connected to the support.

[0018] The second aspect also discloses an open-back headphone, including a headband;

[0019] A sound-generating device is located at both ends of the headgear;

[0020] The loudspeakers described in any one of the claims are respectively disposed within the sound-generating device.

[0021] Furthermore, the sound-generating device includes an ear cup and a rear shell, which are detachably installed. The ear cup and the rear shell have an accommodating space, the speaker is disposed in the accommodating space, and the rear shell has a hollow hole.

[0022] The third aspect also discloses a sound-generating device, including the loudspeaker as described in any one of the claims.

[0023] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0024] This embodiment of the invention provides a loudspeaker with a hollow hole in the center. The loudspeaker with the hollow hole can provide a more natural and spacious sound field, giving users a live music listening experience. The loudspeaker allows more sound waves to escape from the back, reducing sound reflections and echoes around the ears, resulting in a highly natural sound.

[0025] In this embodiment, a hollow hole is provided through the middle of the speaker, and the voice coil is located in the space between the T-frame and the magnet. The diaphragm and the suspension spring suspend the voice coil, ensuring the stability of the voice coil's up and down movement, preventing the voice coil from touching the T-frame and the magnet, and improving the sound quality of the speaker.

[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0027] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of a headphone according to an embodiment of the present invention;

[0030] Figure 2 This is an exploded view of the loudspeaker of this utility model;

[0031] Figure 3 This is a schematic diagram of the loudspeaker of this utility model;

[0032] Figure 4 This is a utility model Figure 3 A diagram from another perspective;

[0033] Figure 5 This is a utility model Figure 4 AA section view;

[0034] Figure 6 This is a schematic diagram of the bracket of this utility model;

[0035] Figure 7 This is a utility model Figure 6 A diagram from another perspective;

[0036] Figure 8 This is a schematic diagram of the vibrating diaphragm of this utility model.

[0037] The image shows:

[0038] 1. Speaker; 20. Earcups; 21. Back cover; 3. Headband; 4. Sealing cover; 5. Hollow hole;

[0039] 10. Support; 11. Bending section; 12. Diaphragm; 13. Washer; 14. Suspension spider; 15. Voice coil; 16. Magnet; 17. T-frame;

[0040] 140. First mounting section; 141. Baffle section; 142. Second mounting section;

[0041] 1410. Protrusion; 1411. Depression. Detailed Implementation

[0042] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0043] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] Please refer to Figure 1 As shown, a loudspeaker, also known as a horn, primarily functions to play sound. It is an electroacoustic transducer that converts electrical signals into sound signals. Loudspeakers have a wide range of applications, basically covering audio equipment, communications, automobiles, and home appliances. Among these, audio equipment and headphones are the main application areas for loudspeakers.

[0049] A loudspeaker comprises a magnetic circuit system, a vibration system, and a support system. The magnetic circuit system includes a permanent magnet, a T-iron, and a magnetic plate; the vibration system includes a diaphragm and a voice coil; and the support system includes a spider, a frame, and a dust cover. The diaphragm is driven by the vibration of the voice coil, which in turn pushes and compresses air to produce sound. To ensure strength and rigidity during vibration, existing diaphragms are typically made by increasing their thickness or adding multiple reinforcing ribs to the back. This increases the diaphragm's weight, sacrifices transient response, high-frequency extension, and overall resolution, and exacerbates issues related to breakup vibration and environmental stability.

[0050] This invention provides a loudspeaker with a hollow hole in the center. The loudspeaker with the hollow hole can provide a more natural and spacious sound field, giving users a live music listening experience. The loudspeaker allows more sound waves to escape from the back, reducing sound reflections and echoes around the ears, resulting in a more natural sound.

[0051] The inventive concept of this invention is that the two ends of the voice coil are connected by a diaphragm and a suspension spring, respectively. That is, the voice coil is installed together with the bracket by the diaphragm and the suspension spring, so that the voice coil can be suspended in the accommodating space between the magnet and the outer surface of the column. During operation, the voice coil will not touch the magnet or the T-iron, thereby improving the sound quality of the speaker.

[0052] Please refer to the attached document. Figure 2 and 3 This utility model provides a loudspeaker 1, which includes a T-frame 17, the T-frame 17 including a hollow column and an extension, the extension being disposed outside one end of the column;

[0053] A magnet 16 is disposed on the extension body and spaced apart from the outer surface of the column.

[0054] Waste 13 is located on the side of magnet 16 away from the extension body;

[0055] The bracket 10 is connected and installed to the side of the washer 13 away from the magnet 16;

[0056] Voice coil 15 is disposed in the accommodating space between the column and the magnet 16;

[0057] The diaphragm 12 is connected and installed to one end of the bracket 10 and the voice coil 15, respectively; and,

[0058] At least two suspended springs 14 are connected to the other end of the voice coil 15 and the bracket 10, respectively.

[0059] Understandably, in order to make the pressure generated on both sides of the speaker 1 the same, or to reduce the sound pressure generated on the front of the speaker 1 when the speaker 1 is working, and to reduce the damage to the eardrum caused by wearing headphones for a long time, the embodiment provides a hollow hole 5 through the speaker 1 in the middle. The voice coil 15 is located in the space between the T-frame 17 and the magnet 16, and the diaphragm 12 and the suspension spring 14 suspend the voice coil 15 to ensure the stability of the voice coil 15's up and down movement, prevent the voice coil 15 from touching the T-frame 17 and the magnet 16, and improve the sound quality of the speaker 1.

[0060] In this embodiment, the two ends of the voice coil 15 are connected by a diaphragm 12 and a suspension spring 14, respectively. That is, the voice coil 15 is installed together with the bracket 10 by the diaphragm 12 and the suspension spring 14, so that the voice coil 15 can be suspended in the space between the magnet 16 and the outer surface of the column. During operation, the voice coil 15 will not touch the magnet or the T-iron, thus improving the sound quality of the speaker 1.

[0061] In some embodiments, two suspended springs 14 are provided at the other end of the voice coil 15, the two suspended springs 14 are symmetrically arranged, and the suspended springs 14 are distributed and connected to the voice coil 15 and the support 10; in other embodiments, three suspended springs 14 are provided at the other end of the voice coil 15, the three suspended springs 14 are evenly distributed, and the suspended springs 14 are distributed and connected to the voice coil 15 and the support 10; in still other embodiments, four suspended springs 14 are provided at the other end of the voice coil 15, the four suspended springs 14 are evenly distributed, and the suspended springs 14 are distributed and connected to the voice coil 15 and the support 10.

[0062] Please refer to the attached document. Figure 2In a further embodiment, the magnet 16 includes at least a first magnet and a second magnet, with the first magnet and the second magnet disposed on the T-frame 17 at a distance.

[0063] Understandably, in order to facilitate the installation of the suspension spring 14 and the bracket 10, when the magnet 16 is placed in the speaker 1, the magnet 16 is divided into multiple evenly distributed magnets 16, and the gaps between the magnets 16 are used to install the suspension spring 14, which can effectively reduce the cost of using the magnet 16.

[0064] For example:

[0065] In some embodiments, the magnet 16 includes a first magnet and a second magnet, which are spaced apart by two positions, allowing for two symmetrically arranged suspended bobbins 14 to be matched. In other embodiments, the magnet 16 includes a first magnet, a second magnet, and a third magnet, which are evenly distributed and spaced apart by three positions, allowing for three evenly distributed suspended bobbins 14 to be matched. In still other embodiments, the magnet includes a first magnet, a second magnet, a third magnet, and a fourth magnet, which are evenly distributed and spaced apart by four positions, allowing for four evenly distributed suspended bobbins 14 to be matched.

[0066] In a further embodiment, the magnet 16 is provided with at least two evenly distributed recesses for mounting the suspension wave 14.

[0067] Understandably, in order to facilitate the installation of the suspension spring 14 and the bracket 10, when the magnet 16 is installed in the speaker 1, multiple recesses are provided on the magnet 16 to match the suspension spring 14. The suspension spring 14 is installed through the magnetic recesses, which can effectively reduce the cost of using the magnet 16.

[0068] For example:

[0069] In some embodiments, two symmetrically arranged recesses are provided on the magnet 16, and when it is mounted on the bracket 10, the two recesses can be matched to install two symmetrically arranged suspension springs 14; in other embodiments, three uniformly arranged recesses are provided on the magnet 16, and when it is mounted on the bracket 10, the three recesses can be matched to install three uniformly arranged suspension springs 14; in still other embodiments, four uniformly arranged recesses are provided on the magnet 16, and when it is mounted on the bracket 10, the four recesses can be matched to install four uniformly arranged suspension springs 14.

[0070] Please refer to the attached document. Figure 8In a further embodiment, the suspended spring 14 includes a first mounting part 140, a folding part 141, and a second mounting part 142. The folding part 141 is fixedly connected to the first mounting part 140 and the second mounting part 142 respectively. The first mounting part 140 is connected to the bracket 10, and the second mounting part 142 is connected to the voice coil 15.

[0071] Understandably, in order to ensure that the voice coil 15 can move up and down when the speaker 1 is working, the suspension spring 14 is set into three parts, wherein the first mounting part 140 and the second mounting part 142 are respectively connected to the bracket 10 and the voice coil 15, and the folding part 141 ensures that it can move up and down with the voice coil 15 during operation, and the folding part 141 is set into a pleated structure.

[0072] Please refer to the attached document. Figure 8 In a further embodiment, the folded portion 141 includes at least one protrusion 1410 and a recessed pleated structure.

[0073] Understandably, the folding section 141 is configured as a pleated structure, wherein the pleated structure includes at least one protrusion 1410 and a recess. When the speaker 1 is working, the pleated structure allows the voice coil 15 to move up and down flexibly, ensuring the normal operation of the speaker 1 and at the same time ensuring the sound quality of the speaker 1.

[0074] In some embodiments, the folded portion 141 is configured as a pleated structure, wherein the pleated structure includes a protrusion 1410 and a recess, that is, a pleated structure formed by a protrusion 1410 and a recess connected end to end, ensuring the amplitude of the voice coil 15 vibration; in other embodiments, the folded portion 141 is configured as a pleated structure, wherein the pleated structure includes two protrusions 1410 and a recess, that is, a pleated structure formed by two protrusions 1410 respectively disposed on both sides of a recess, ensuring the amplitude of the voice coil 15 vibration; in still other embodiments, the folded portion 141 is configured as a pleated structure, wherein the pleated structure includes two protrusions 1410 and two recesses, that is, two protrusions 1410 and two recesses are connected end to end in sequence at intervals, and the pleated structure formed ensures the amplitude of the voice coil 15 vibration.

[0075] Please refer to the attached document. Figure 6 and 7 In a further embodiment, the bracket 10 is a ring structure, and a first space and a second space are respectively provided on both sides of the bracket 10. The first space is connected to the vibrating diaphragm 12, and the magnet 16 is located in the second space. The second space has a notch for installation with the suspended wave 14.

[0076] Understandably, to facilitate the installation of the magnet 16, diaphragm 12, and suspension spring 14 of the speaker 1, the bracket 10 is configured as a ring structure, wherein a first space and a second space are respectively provided on both sides of the bracket 10, and a notch for accommodating the suspension spring 14 is provided in the second space.

[0077] Please refer to the attached document. Figure 5 In a further embodiment, the diaphragm 12 includes a paper disc and a bending portion 11, the paper disc is fixedly connected to the bending portion 11, the inner edge of the paper disc is connected to the voice coil 15, and the bending portion 11 is connected to the bracket 10.

[0078] Please refer to the attached document. Figure 1 The second aspect also discloses an open-back headphone, including a headband 3;

[0079] A sound-generating device is located at both ends of the headgear 3;

[0080] The loudspeaker 1 described in any one of the claims is respectively disposed in the sound-generating device.

[0081] Understandably, in this embodiment, the speaker 1 has a hollow hole 5 that extends through the sound-generating device from both the inner and outer sides of the sound-generating unit. The sound-generating device with the hollow hole 5 can provide a more natural and spacious sound field, giving users a live music listening experience. This open-back headphone allows more sound waves to escape from the rear of the sound-generating device, reducing sound reflections and echoes around the ears, resulting in a high degree of sound naturalness. This allows the sound-generating device to maintain its original shape, preserving the traditional wearing method of opening the ear canal through a hollow design, while still allowing the sound-generating device to completely surround the user's ears during use.

[0082] Please refer to the attached document. Figure 1 In a further embodiment, the sound-generating device includes an earcup 20 and a rear shell 21, which are detachably installed. The earcup 20 and the rear shell 21 have an accommodating space, the speaker 1 is disposed in the accommodating space, and the rear shell 21 has a hollow hole 5.

[0083] The sound-generating device of this invention, an open-back headphone, has a hollow hole 5 extending through the side near the ear and the opposite outer side. The sound-generating device with the hollow hole 5 can provide a more natural and spacious sound field, giving users a live music listening experience. This open-back headphone allows more sound waves to escape from the rear of the sound-generating device, reducing sound reflections and echoes around the ear, resulting in a high degree of sound naturalness. The hollow hole 5, which does not completely seal the ear, reduces ear pressure, making it more comfortable to wear, especially during extended use. In hot climates, the hollow hole 5 increases airflow, allowing the ears to dissipate heat quickly, reducing sweating and improving wearing comfort. In scenarios requiring immediate awareness of ambient sounds (such as outdoor activities or the office), the open-back headphone allows users to hear surrounding sounds through the hollow hole 5.

[0084] The sound-generating device of this invention has a hollow hole 5, which allows the sound-generating device to pass through both sides. This allows the outer contour of the sound-generating device to maintain its original shape, maintaining the traditional wearing method of opening the ear canal through the hollow structure. During use, the sound-generating device can still completely surround the user's ear. When it is necessary to close the hollow hole 5 (for example, by using the sealing cover 4 described below), closing the hollow hole 5 converts the earphone cavity into a closed cavity, which is very convenient and allows for easy switching between open and closed modes. Furthermore, since the hollow hole 5 passes through both the inner and outer sides of the sound-generating device and has a certain depth, it facilitates the installation of the sealing cover 4 when sealing the hollow hole 5, and also provides a certain degree of spatial adjustment capability. For example, the tone can be adjusted by the degree to which the sealing cover 4 is inserted (see the embodiment of the sealing cover 4 described below).

[0085] Specifically, the open-back headphones of this invention offer natural sound diffusion: due to the open sound-emitting device, sound can diffuse freely in all directions, avoiding sound wave reflections and echoes caused by enclosed spaces, thus providing a more natural and relaxed listening experience. The open-back headphones of this invention have high fidelity: the open-back design helps to reproduce sound details more realistically, improving sound fidelity. The open-back headphones of this invention have a spacious soundstage: the open-back headphones provide a wide soundstage, making music sound more expansive and creating a more immersive listening experience for the listener. Open-back headphones help to accurately locate instruments: in the spacious soundstage created by open-back headphones, users can more easily distinguish the sound positions of different instruments, which is especially important for appreciating symphonies or other pieces that require precise positioning. The open-back headphones of this invention have a stronger sense of auditory space: the open-back headphones reduce the feeling of ear enclosure, providing a more open and spacious auditory space, enhancing the spatial sense of music. The open-back headphones of this invention are suitable for large-scale orchestral works: due to their wide soundstage and accurate positioning, open-back headphones are particularly suitable for appreciating large-scale musical works such as symphonies and film scores.

[0086] Ambient sound integration: Open-back headphones allow a certain amount of ambient sound to enter, which may help users maintain awareness of their surroundings in some situations. The open-back headphones of this invention offer superior comfort: Open-back headphones are generally considered more comfortable for extended wear because they do not exert pressure on the ears. In summary, these characteristics of open-back headphones give them a unique advantage in music enjoyment, especially for users seeking high-fidelity sound quality and a wide soundstage experience.

[0087] The third aspect also discloses a sound-generating device, including the loudspeaker as described in any one of the claims.

[0088] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A loudspeaker, characterized by The loudspeaker comprises a T-shaped frame, a hollow column and an extension body, the extension body is arranged outside the end of the column; A magnet is arranged on the extension body and spaced from the outer surface of the column; A pot core is arranged on the side of the magnet away from the extension body; A support is arranged on the side of the pot core away from the magnet; A voice coil is arranged in the space between the column and the magnet; A diaphragm is arranged on one end of the support and the voice coil; and At least two suspension springs are arranged on the other end of the voice coil and the support.

2. The vibrating membrane of claim 1, wherein, The magnet comprises at least a first magnet and a second magnet, and the first magnet and the second magnet are arranged on the T-shaped frame in a spaced manner.

3. The vibrating membrane of claim 1, wherein, The magnet is provided with at least two uniformly distributed recesses for matching the installation of the suspension springs.

4. The vibrating membrane of claim 1, wherein, The suspension spring comprises a first mounting portion, a wave folding portion and a second mounting portion, the wave folding portion is fixedly connected with the first mounting portion and the second mounting portion, the first mounting portion is connected with the support, and the second mounting portion is connected with the voice coil.

5. The vibrating membrane of claim 4, wherein, The wave folding portion comprises at least one convex and one concave wrinkle structure.

6. The vibrating membrane of claim 1, wherein, The support is a ring structure, and the support is provided with a first space and a second space on both sides, the diaphragm is connected with the first space, the magnet is arranged in the second space, the second space is provided with a notch for matching the installation of the suspension spring.

7. The vibrating membrane of claim 1, wherein, The diaphragm comprises a paper disc and a bending portion, the paper disc is fixedly connected with the bending portion, the inner edge of the paper disc is connected with the voice coil, and the bending portion is connected with the support.

8. An open headphone, characterized in that The headgear comprises a headgear; Sound generating devices are arranged at both ends of the headgear; The loudspeaker of any one of claims 1-7 is arranged in the sound generating device.

9. The open headphone of claim 8, wherein, The sound generating device comprises an ear cover and a rear shell, the ear cover and the rear shell are detachably installed, the ear cover and the rear shell are provided with a receiving space, the loudspeaker is arranged in the receiving space, and the rear shell is provided with a hollow hole.

10. A sound producing device, characterized by The loudspeaker of any one of claims 8 or 9 is arranged in the sound generating device.

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