Sound apparatus and vehicle apparatus including the same

Abstract

The present disclosure provides a sound apparatus and a vehicle apparatus including the sound apparatus. The sound device includes: a housing including an internal space and a protrusion including an open hole connected to the internal space; a sound generation module at the internal space of the housing; and a coupling portion including a hollow portion connected to the internal space, the coupling portion being accommodated in the open hole of the protruding portion, in which the coupling portion is detachably fastened to the protruding portion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of and priority to Korean Patent Application No. 10-2023-0155669, filed on November 10, 2023, which is hereby incorporated by reference in its entirety for all purposes as if fully set forth herein. Technical Field

[0003] The present disclosure relates to a sound device and a vehicle device including the sound device. Background Art

[0004] The vehicle includes a sound device that outputs sound based on an audio signal output from a multimedia device such as a car audio device. For example, the sound device applied to the vehicle may include a front speaker and a rear speaker configured as a coil type.

[0005] However, the sound device in the vehicle may be limited by the coil type device when outputting multi-channel real sound or stereo sound through the front and rear speakers. In addition, in the sound device in the vehicle, when the number of speakers is increased, stereo sound can be output, but due to the size of the speaker based on the coil type device and the space limitation in the vehicle, there is a limitation in increasing the number of speakers, making it impossible to provide real sound or stereo sound using the coil type device. Summary of the invention

[0006] The inventors of the present disclosure have recognized the problems and shortcomings of the related art and have performed extensive research and experiments for enhancing the sound characteristics and / or sound pressure level characteristics of a sound device for a vehicle. Based on the extensive research and experiments, the inventors have invented a sound device and a vehicle device including the sound device that can enhance the sound characteristics and / or sound pressure level characteristics.

[0007] One aspect of the present disclosure is directed to providing a sound device and a vehicle device including the sound device that can enhance sound characteristics and / or sound pressure level characteristics.

[0008] One aspect of the present disclosure is directed to providing a sound device and a vehicle device including the sound device, which can be easily separated or detached (or reworked) from an installation object.

[0009] One aspect of the present disclosure is directed to providing a sound device and a vehicle device including the sound device, which can enhance sound characteristics and / or sound pressure level characteristics in a tonal vocal band of sounds including a low-pitched vocal band.

[0010] Additional features, advantages, and aspects will be set forth in the following description, and will become apparent in part from the description, or may be learned by practicing the inventive concepts provided herein. Other features, advantages, and aspects of the present disclosure may be realized and obtained by structures specifically pointed out in the written description, or structures that can be derived from the written description and its claims and drawings.

[0011] To achieve these and other advantages and aspects of the present disclosure, as embodied and broadly described herein, in one or more aspects, a sound device includes: a housing including an interior space and a protrusion including an opening hole connected to the interior space; a sound generating module at the interior space of the housing; and a coupling portion including a hollow portion connected to the interior space, the coupling portion being received in the opening hole of the protrusion. The coupling portion is detachably fastened to the protrusion.

[0012] In one or more aspects, a vehicle device may include: an interior material exposed at an interior space; and one or more sound generating devices disposed at the interior material to output sound to the interior space. The one or more sound generating devices include a sound device, and the sound device includes: a housing including an interior space and a protrusion, the protrusion including an opening hole connected to the interior space; a sound generating module, the sound generating module is at the interior space of the housing; and a coupling portion, the coupling portion including a hollow portion connected to the interior space, the coupling portion being accommodated in the opening hole of the protrusion. The coupling portion is detachably fastened to the protrusion.

[0013] In one or more aspects, a vehicle device may include: an interior material exposed at an interior space; and one or more sound devices as described above, which are provided at the interior material to output sound to the interior space.

[0014] Details of other exemplary embodiments are included in the detailed description and drawings of the present disclosure.

[0015] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, sound characteristics and / or sound pressure level characteristics may be enhanced.

[0016] Based on the sound device and vehicle device including the sound device according to one or more embodiments of the present disclosure, the coupling portion can be detachably fastened to the protrusion of the shell, and therefore, the separation or detachment (or rework) of the sound device or sound generating device installed on the installation object can be easily performed.

[0017] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, it is possible to enhance sound characteristics and / or sound pressure level characteristics in a vocal range including low-pitched vocal range sounds.

[0018] According to the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, a heat dissipation portion may be provided at the vibration member, thereby preventing degradation of the performance of the vibration device caused by heat.

[0019] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, one or more holes can be configured at the vibration member, and thus, the sound characteristics and / or sound pressure level characteristics can be enhanced in the vocal cords including the sound of the low-pitched vocal cords.

[0020] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, the signal supply member and the vibration generating portion may be configured as one portion (or one component), thereby achieving a single material effect.

[0021] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, since a protective member is provided at the sound device, the sound characteristics and / or sound pressure level characteristics can be further enhanced, the sound reproduction band can be expanded, and the sound device can be protected.

[0022] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, the connecting member is configured between the vehicle interior material and the housing, so the sound characteristics and / or sound pressure level characteristics in the vocal cords including low-pitched vocal cord sounds can be enhanced.

[0023] Based on a sound device and a vehicle device including the sound device according to one or more embodiments of the present disclosure, sound can be output through a hollow portion including a chamfered portion having a non-rectangular shape, and therefore, sound characteristics and / or sound pressure level characteristics can be enhanced in a vocal cord including low-pitched vocal cord sounds, and peaks and / or dips in high-pitched vocal cords can be improved, thereby enhancing a balance characteristic of the sound pressure level or a flatness characteristic of the sound pressure level.

[0024] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, the coupling portion coupled to the opening portion of the shell can have an optimized width and / or length, and therefore, the sound characteristics and / or sound pressure level characteristics can be enhanced in the vocal cords including the low-pitched vocal cord sounds, and the peaks and / or dips in the high-pitched vocal cords can be improved, thereby enhancing the balance characteristics of the sound pressure level or the flatness characteristics of the sound pressure level.

[0025] Based on the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, connecting members with different thicknesses can be configured between the housing and the vehicle interior material, and thus, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range can be enhanced.

[0026] Other systems, methods, features, and advantages will be or will become apparent to one skilled in the art upon review of the following figures and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this specification, be within the scope of the present disclosure, and be protected by the appended claims. Nothing in this section should be construed as limiting those claims. Other aspects and advantages are discussed below in conjunction with aspects of the present disclosure.

[0027] It is to be understood that both the foregoing description and the following description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate aspects and embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

[0029] Figure 1 A sound device for a vehicle according to an embodiment of the present disclosure is shown.

[0030] Figure 2 A sound apparatus for a vehicle according to another embodiment of the present disclosure is shown.

[0031] Figure 3 A sound device according to an embodiment of the present disclosure is shown.

[0032] Figure 4 The embodiment according to the present disclosure is shown Figure 3 The protrusion shown in FIG.

[0033] Figure 5 Another embodiment according to the present disclosure is shown. Figure 3 The protrusion shown in FIG.

[0034] Figure 6 The embodiment according to the present disclosure is shown Figure 3 The coupling portion shown in FIG.

[0035] Figure 7 According to the embodiments of the present disclosure Figure 3 An exploded perspective view of the sound device shown.

[0036] Figure 8 A process of fastening a coupling portion to a protrusion of a housing according to another embodiment of the present disclosure is shown.

[0037] Fig. 9 A sound device according to another embodiment of the present disclosure is shown.

[0038] Fig.10 A sound device according to another embodiment of the present disclosure is shown.

[0039] Fig.11 According to another embodiment of the present disclosure Fig.10 An exploded perspective view of the sound device shown.

[0040] Fig.12 A sound device according to another embodiment of the present disclosure is shown.

[0041] Fig.13 is an exploded perspective view of a sound device according to an embodiment of the present disclosure.

[0042] Fig.14 A sound device according to another embodiment of the present disclosure is shown.

[0043] Fig.15 According to another embodiment of the present disclosure Fig.14 An exploded perspective view of the sound device shown.

[0044] Fig.16 A sound device according to another embodiment of the present disclosure is shown.

[0045] Fig.17 is a plan view illustrating a vibration member and a vibration device according to another embodiment of the present disclosure.

[0046] Fig.18 A sound device according to another embodiment of the present disclosure is shown.

[0047] Fig.19 A sound device according to another embodiment of the present disclosure is shown.

[0048] Fig. 20 A sound device according to another embodiment of the present disclosure is shown.

[0049] Fig.21 A sound device according to another embodiment of the present disclosure is shown.

[0050] Fig. 22 A sound device according to another embodiment of the present disclosure is shown.

[0051] Fig.23 Another embodiment according to the present disclosure is shown. Fig. 22 The coupling portion shown in FIG.

[0052] Fig.24 A sound device according to another embodiment of the present disclosure is shown.

[0053] Fig.25 A method of fastening a coupling portion to a Fig.24 Method of protrusion of the housing shown.

[0054] Fig.26 A sound device according to another embodiment of the present disclosure is shown.

[0055] Fig. 27 A method of fastening a coupling portion to a Fig.26 The method of the protrusion of the housing is shown in FIG.

[0056] Fig.28 A vibration device according to an embodiment of the present disclosure is shown.

[0057] Fig.29 According to the embodiments of the present disclosure Fig.28 A cross-sectional view taken along line II' shown in FIG.

[0058] Fig.30 According to the embodiments of the present disclosure Fig.28 A cross-sectional view taken along line II-II' is shown in FIG.

[0059] Fig.31 A vibration portion according to another embodiment of the present disclosure is shown.

[0060] Fig.32 A vibration portion according to another embodiment of the present disclosure is shown.

[0061] Fig.33 A vibration device according to another embodiment of the present disclosure is shown.

[0062] Fig.34 A sound device according to another embodiment of the present disclosure is shown.

[0063] Fig.35 Another embodiment of the present disclosure is shown. Fig.34 A cross-sectional view of the vibration device shown in FIG.

[0064] Fig.36 According to another embodiment of the present disclosure Fig.34An exploded perspective view of the sound device shown in FIG.

[0065] Fig.37 A vehicle device according to an embodiment of the present disclosure is shown.

[0066] Fig.38 A vehicle device according to an embodiment of the present disclosure is shown.

[0067] Fig.39 Shows the settings in Fig.37 and Fig.38 A sound generating device at the roof of the vehicle device shown in FIG.

[0068] Fig.40 Shows the settings in Fig.37 and Fig.38 Sound generating devices at the roof and seats of the vehicle device shown in FIG.

[0069] Fig.41A and Fig.41B An attaching or detaching method of a coupling portion fastened to a protrusion of a housing in a sound device according to an embodiment of the present disclosure is shown.

[0070] Throughout the drawings and detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The sizes, lengths, and thicknesses of layers, regions, and elements, and descriptions thereof, may be exaggerated for clarity, illustration, and / or convenience. DETAILED DESCRIPTION

[0071] By referring to the various aspects described in the accompanying drawings, the advantages and features of the present disclosure and their implementation methods are explained. However, the present disclosure can be embodied in different forms and should not be construed as being limited to the example aspects set forth herein. On the contrary, these example aspects are examples and are provided so that the present disclosure can be thorough and complete, to help those skilled in the art understand the inventive concept, without limiting the scope of protection of the present disclosure.

[0072] The shapes, sizes, ratios, angles, and numbers disclosed in the drawings used to describe the embodiments of the present disclosure are examples only, and therefore the present disclosure is not limited to the details shown. The same reference numerals refer to the same elements throughout. In the following description, when the detailed description of the relevant known function or configuration is determined to be unnecessary to obscure the main points of the present disclosure, the detailed description will be omitted.

[0073] In the case where “including,” “having,” and “comprising” described in the present specification are used, another part may be added unless “only” is used. Terms in the singular form may include plural forms unless noted otherwise.

[0074] In explaining an element, although there is no explicit description, the element is interpreted as including an error range.

[0075] When describing a positional relationship, for example, when the positional relationship between two parts is described as “on,” “above,” “below,” and “beside,” unless “just” or “directly” is used, one or more other parts may be set between the two parts.

[0076] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “immediately” or “immediately” is used.

[0077] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0078] When describing elements of the present disclosure, terms such as "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms are intended to identify corresponding elements from other elements, and these terms are not used to limit the nature, basis, sequence, order or number of the elements.

[0079] When an element is “connected,” “coupled” or “in contact with” another element, unless otherwise specified, the element may not only be directly connected, coupled or in direct contact with another element, but may also be indirectly connected, coupled or in indirect contact with another element by interposing one or more intervening elements between the elements.

[0080] Regarding the expression that an element “contacts” or “overlaps” another element, unless otherwise specified, the element may not only directly contact, overlap, etc., but may also indirectly contact or overlap with the other element by disposing or interposing one or more intervening elements between the elements.

[0081] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first, second, and third items" means the combination of all items proposed from two or more of the first, second, and third items as well as the first, second, or third item.

[0082] As those skilled in the art can fully understand, the features of the various embodiments of the present disclosure can be combined or combined with each other in part or in whole, and can interoperate with each other and be driven technically in a variety of ways. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0083] Hereinafter, an exemplary embodiment of the sound device according to the present disclosure will be described in detail with reference to the accompanying drawings. For convenience of description, the scale of each of the elements shown in the drawings is different from the actual scale and is therefore not limited to the scale shown in the drawings.

[0084] Figure 1 A sound device according to an embodiment of the present disclosure is shown. Figure 1 A sound device for a vehicle according to an embodiment of the present disclosure is shown.

[0085] Reference Figure 1 The sound device 30 according to the embodiment of the present disclosure may be disposed or equipped at an interior location of the vehicle 10 to output the sound S to the interior space (or indoor space) IS of the vehicle (or vehicle device) 10 .

[0086] The vehicle 10 may be a vehicle device including one or more seats and one or more windows. For example, the vehicle 10 may include a vehicle, a train, a ship, or an airplane, etc., but the embodiments of the present disclosure are not limited thereto.

[0087] The vehicle 10 according to an embodiment of the present disclosure may include a primary structure 110 .

[0088] The main structure 110 of the vehicle 10 may include a main frame, a sub-frame, a side frame, a door frame, a bottom frame, a seat frame, etc., but the embodiments of the present disclosure are not limited thereto. For example, the main structure 110 may be a vehicle body, a vehicle structure, or a frame structure, etc., but the embodiments of the present disclosure are not limited thereto.

[0089] The vehicle 10 according to the embodiment of the present disclosure may further include an exterior material 120 .

[0090] The exterior material 120 of the vehicle 10 may be configured to cover the primary structure 110. For example, the exterior material 120 of the vehicle 10 may be configured to cover an exterior portion of the primary structure 110. In the following description, the exterior material 120 may be a vehicle exterior material 120 and may be used interchangeably.

[0091] The exterior materials (or vehicle exterior materials) 120 of the vehicle 10 may include a hood panel, a front fender panel, an instrument panel panel, a pillar panel, a trunk panel, a roof panel (or ceiling), a floor panel, an inner door panel, and an outer door panel, etc., but the embodiments of the present disclosure are not limited thereto.

[0092] The external material 120 according to an embodiment of the present disclosure may include at least one or more of a planar portion (or flat portion) and a curved portion (or a tortuous portion or an uneven portion). For example, the external material 120 may have a structure corresponding to that of the corresponding main structure 110, or may have a structure different from that of the corresponding main structure 110.

[0093] The vehicle 10 according to the embodiment of the present disclosure may further include a vehicle interior material 130. In the following description, the vehicle interior material 130 may be an interior material 130 and may be used interchangeably.

[0094] The vehicle interior material 130 may include all elements (or parts) configuring the interior of the vehicle 10, or may include all elements provided at the interior space IS of the vehicle 10. For example, the vehicle interior material 130 may be an interior member or interior decoration material of the vehicle 10, but embodiments of the present disclosure are not limited thereto.

[0095] The vehicle interior material 130 according to an embodiment of the present disclosure may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space (or interior portion) IS of the vehicle 10. For example, the vehicle interior material 130 may cover one or more of the main structure 110 and the exterior material 120 in the interior space IS of the vehicle 10, and may be configured to be exposed at the interior space IS of the vehicle 10.

[0096] The vehicle interior material 130 according to an embodiment of the present disclosure may be configured to be exposed at the interior part and / or the interior space IS of the vehicle 10 in the interior part and / or the interior space IS of the vehicle 10. For example, the vehicle interior material 130 may be configured to cover one or more surfaces (or interior surfaces) of at least one or more of a main frame (or vehicle body), a side frame (or side body), a door frame (or door body), a handle frame (or steering hub), and a seat frame exposed at the interior space IS of the vehicle 10.

[0097] The vehicle interior materials 130 according to an embodiment of the present disclosure may include an instrument panel, pillar interior materials (or pillar trim), floor interior materials (or floor carpet), roof interior materials (or roof lining), door interior materials (or door trim), handle interior materials (or steering cover), seat interior materials, trunk interior materials (or rear seat shelves), overhead consoles (or interior lighting materials), rearview mirrors, glove boxes and sun visors, etc., but the embodiments of the present disclosure are not limited thereto.

[0098] The vehicle interior material 130 according to an embodiment of the present disclosure may include one or more materials of metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, leather and carbon, but the embodiment of the present disclosure is not limited thereto. The vehicle interior material 130 including a plastic material may be an injection material realized by an injection process using a thermoplastic resin or a thermosetting resin, but the embodiment of the present disclosure is not limited thereto. The vehicle interior material 130 including a fiber material may include at least one or more of a plastic composite fiber, a carbon fiber (or an aramid fiber) and a natural fiber, but the embodiment of the present disclosure is not limited thereto. The vehicle interior material 130 including a fiber material may include a textile sheet, a knitted sheet or a non-woven fabric, etc., but the embodiment of the present disclosure is not limited thereto. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be pulp or foam plastic, etc., but the embodiment of the present disclosure is not limited thereto. The vehicle interior material 130 including a leather material may include natural leather or artificial leather, but the embodiment of the present disclosure is not limited thereto.

[0099] The vehicle interior material 130 according to an embodiment of the present disclosure may include at least one or more of a plane portion (or flat portion) and a curved portion (or a tortuous portion or an uneven portion). For example, the vehicle interior material 130 may have a structure corresponding to the structure (or inner surface structure) of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0100] According to an embodiment of the present disclosure, the sound device 30 may be disposed at the vehicle interior material 130. The sound device 30 may vibrate the vehicle interior material 130 to generate a sound S based on the vibration of the vehicle interior material 130. For example, the sound device 30 may directly vibrate the vehicle interior material 130 to generate a sound S based on the vibration of the vehicle interior material 130. For example, the sound device 30 may be configured to vibrate the vehicle interior material 130 to output the sound S to the interior of the vehicle 10 or the indoor space IS. Therefore, the sound device 30 may use the vehicle interior material 130 as a sound vibration plate, a sound vibration membrane, or an acoustic vibration membrane. The vehicle interior material 130 may be a vibration plate, a sound vibration plate, or a sound generating plate for outputting the sound S. For example, the vehicle interior material 130 may have a size larger than the sound device 30, but the embodiments of the present disclosure are not limited thereto.

[0101] According to an embodiment of the present disclosure, the sound device 30 can be set at at least one or more of the dashboard, pillar interior material, floor interior material, roof interior material, door interior material, handle interior material and seat interior material, or can be connected (or coupled) to at least one or more of the trunk interior material, overhead console, rearview mirror, glove box and sun visor.

[0102] The vehicle 10 according to an embodiment of the present disclosure may include one or more sound devices 30 disposed at or connected to at least one or more regions (or portions) of the vehicle interior material 130. The one or more sound devices 30 may vibrate at least one or more regions (or portions) of the vehicle interior material 130 to output a real sound S including multi-channels and / or stereo sound to the interior space IS of the vehicle 10.

[0103] According to an embodiment of the present disclosure, the sound device 30 may be configured at an area between the vehicle interior material 130 and the main structure 110, or at an area between the vehicle interior material 130 and the exterior material 120. The sound device 30 may be disposed at an area between the vehicle interior material 130 and the main structure 110, or at an area between the vehicle interior material 130 and the exterior material 120, and may indirectly or directly vibrate one or more of the area between the vehicle interior material 130 and the main structure 110 and the area between the vehicle interior material 130 and the exterior material 120 to output a sound S.

[0104] According to an embodiment of the present disclosure, the sound device 30 may be disposed at one or more of the area (or first space) between the main structure 110 and the exterior material 120, the area (or second space) between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130. For example, the sound device 30 may be disposed at one or more of the area (or first space) between the main structure 110 and the exterior material 120, the area (or second space) between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and may be configured to output sound. For example, the sound device 30 may be disposed at one or more of the area (or first space) between the main structure 110 and the exterior material 120, the area (or second space) between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and may indirectly or directly vibrate one or more of the main structure 110, the exterior material 120, and the vehicle interior material 130 to output sound.

[0105] According to an embodiment of the present disclosure, the sound device 30 may output sound in the area between the exterior material 120 and the vehicle interior material 130 of the vehicle 10. For example, the sound device 30 may be disposed at the area between the exterior material 120 and the vehicle interior material 130 (or the third area), the exterior material 120, and at least one or more of the vehicle interior material 130. For example, the sound device 30 may be disposed at the area between the exterior material 120 and the vehicle interior material 130, and may indirectly or directly vibrate one or more of the exterior material 120 and the vehicle interior material 130 to output sound. For example, the sound device 30 may be connected or coupled to one or more of the exterior material 120 and the vehicle interior material 130 in the area between the exterior material 120 and the vehicle interior material 130, and may indirectly or directly vibrate one or more of the exterior material 120 and the vehicle interior material 130 to output sound. For example, one or more of the exterior material 120 and the vehicle interior material 130 may output sound S based on the driving (or vibration) of the sound device 30.

[0106] According to an embodiment of the present disclosure, one or more of the exterior material 120 and the vehicle interior material 130 of the vehicle 10 may be a vibration plate, a sound vibration plate, a sound generating plate, or the like that outputs the sound S. For example, each of the exterior material 120 and the vehicle interior material 130 that outputs the sound may have a size (or area) larger than that of the sound device 30, and thus, may perform the function of a large-area vibration plate, a large-area sound vibration plate, or a large-area sound generating plate, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the vocal cords including the low-pitched vocal cords generated by the sound device 30. For example, the frequency of the sound of the low-pitched vocal cords may be 300 Hz or less, 400 Hz or less, or 500 Hz or less, but the embodiments of the present disclosure are not limited thereto.

[0107] Figure 2 A sound apparatus for a vehicle according to another embodiment of the present disclosure is shown. Figure 2 Shown by modifying the above reference Figure 1 The embodiment described above is implemented by the vehicle interior material 130 on which the sound device is provided. Therefore, in the following description, repeated descriptions of other elements except the vehicle interior material 130 may be omitted or will be briefly given.

[0108] Reference Figure 2 , the sound device 30 according to another embodiment of the present disclosure may vibrate the vehicle interior material 130 to output the sound S.

[0109] The vehicle interior material 130 according to an embodiment of the present disclosure may include one or more materials of metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, but embodiments of the present disclosure are not limited thereto.

[0110] The vehicle interior material 130 according to another embodiment of the present disclosure may include a base member 131 and a surface member 133. For example, the base member 131 may be an injection material, a first interior material, an inner interior material, or a rear interior material, but the embodiments of the present disclosure are not limited thereto. The surface member 133 may be a second interior material, an outer interior material, a front interior material, an outer surface member, a reinforcement member, or a decorative member, but the embodiments of the present disclosure are not limited thereto.

[0111] The base member 131 may include a plastic material. The base member 131 according to an embodiment of the present disclosure may include an injection material. For example, the base member 131 may be an injection material implemented by an injection process using a thermoplastic resin or a thermosetting resin, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 or the base member 131 may be configured to cover the interior of the vehicle 10. For example, the vehicle interior material 130 or the base member 131 may be configured to cover one or more of the main structure 110 and the external material 120 in the interior space IS of the vehicle 10. For example, the vehicle interior material 130 or the base member 131 may be configured to cover a surface (or inner surface) of at least one or more of the main frame, side frame, door frame, and handle frame exposed at the interior space IS of the vehicle 10.

[0112] The base member 131 may include at least one or more of a flat portion and a curved portion. For example, the base member 131 may have a structure corresponding to the structure (or rear structure) of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0113] The surface member 133 may be disposed on the base member 131. For example, the surface member 133 may be disposed to cover the base member 131. The surface member 133 may cover the base member 131 at the interior portion or the interior space IS of the vehicle 10, and may be configured to be exposed at the interior portion or the interior space IS of the vehicle 10. For example, the surface member 133 may be disposed on a front surface (or interior surface) of the base member 131 exposed at the interior space IS of the vehicle 10 or coupled to the front surface.

[0114] The vehicle interior material 130 or surface member 133 according to the embodiment of the present disclosure may include one or more materials in plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, carbon and metal, but the embodiment of the present disclosure is not limited thereto. For example, the surface member 133 may be a fiber material. For example, the surface member 133 including the fiber material may include at least one or more of synthetic fiber, carbon fiber (or aramid fiber) and natural fiber, but the embodiment of the present disclosure is not limited thereto. For example, the surface member 133 including the fiber material may be a textile sheet, a knitted sheet or a non-woven fabric, but the embodiment of the present disclosure is not limited thereto. For example, the surface member 133 including the fiber material may be a fabric member, but the embodiment of the present disclosure is not limited thereto.

[0115] The synthetic fiber may be a thermoplastic resin and may include a polyolefin-based fiber, which is an eco-friendly material that does not release harmful substances. For example, the polyolefin-based fiber may include a polyethylene fiber, a polypropylene fiber, or a polyethylene terephthalate fiber, but the embodiments of the present disclosure are not limited thereto. The polyolefin-based fiber may be a single resin fiber or a core-shell structure fiber, but the embodiments of the present disclosure are not limited thereto. The natural fiber may be a composite fiber of one or two or more of jute fiber, kenaf fiber, abaca fiber, coconut fiber, and wood fiber, but the embodiments of the present disclosure are not limited thereto.

[0116] The sound device 30 may be covered by the vehicle interior material 130. The sound device 30 may be configured to vibrate the vehicle interior material 130 including the base member 131 and the surface member 133 to output the sound S to the interior of the vehicle 10 and / or the interior space IS.

[0117] The sound device 30 according to another embodiment of the present disclosure may output sound S to the interior space IS of the vehicle 10 using the vehicle interior material 130 as a vibration plate or a sound vibration plate, and may output real sound S including multi-channels or stereo sound to the interior space IS of the vehicle 10 .

[0118] According to another embodiment of the present disclosure, the sound device 30 may be configured to be surrounded by a shell. A space may be set between the sound device 30 and the shell, and the sound (or sound pressure level) may be output based on the vibration of the air between the sound device 30 and the shell by the vehicle interior material 130. However, there may be a problem that the sound of the low-pitched vocal band is not output, and there may be a problem that the flatness of the sound pressure level is reduced, because the number of peaks and dips that appear in the reproduction frequency band of the sound (or sound pressure level) generated based on the vibration of the vehicle interior material 130 increases, and each of the highest sound pressure level and the lowest sound pressure level that appear in the reproduction frequency band of the sound (or sound pressure level) generated based on the vibration of the vehicle interior material 130 increases. A peak may be a phenomenon in which the sound pressure level bounces at a specific frequency, and a dip may be a phenomenon in which a low sound pressure level is generated as the occurrence of a sound with a specific frequency decreases. The flatness of the sound characteristic may be a deviation level between the highest sound pressure and the lowest sound pressure at a specific frequency.

[0119] The inventors of the present disclosure have performed extensive research and experiments for realizing a sound device and a vehicle device including the sound device, wherein the sound characteristics of the low-pitched vocal band can be improved and the flatness characteristics of the sound pressure level can be enhanced. Based on the extensive research and experiments, the inventors of the present disclosure have invented a sound device and a vehicle device including the sound device, which can output sounds including high-pitched vocal bands to low-pitched vocal bands and can enhance the balance characteristics of the sound pressure level or the flatness characteristics of the sound pressure level. This will be described in detail below.

[0120] Figure 3 A sound device according to an embodiment of the present disclosure is shown.

[0121] Reference Figure 3 The sound device 30 (or the sound device for a vehicle) according to an embodiment of the present disclosure may be configured to vibrate a vibrating object or a vibrating structure. For example, the sound device 30 may be a sound generating device, a sound output device, a speaker device, a car audio device, or an audio device, but the embodiments of the present disclosure are not limited thereto.

[0122] The sound device 30 may be configured to be connected (or coupled) to a vibrating object or vehicle structure. For example, the sound device 30 may be disposed on (or connected to) Figure 1 or Figure 2 The sound device 30 may be configured to generate (or output) sound by using a portion of any one of the main structure 110, the outer material 120, and the inner material 130 shown in FIG. Figure 1 or Figure 2 Any one of the main structure 110, the outer material 120, and the inner material 130 shown in FIG. 1 vibrates to generate (or output) sound.

[0123] The sound device 30 according to an embodiment of the present disclosure may include a housing 310 and a sound generating module 330 .

[0124] The housing 310 may be configured to support the sound generating module 330, and may be configured to output the sound generated based on the driving (or vibration) of the sound generating module 330. For example, the housing 310 may be configured to surround or cover the sound generating module 330. For example, the housing 310 may be configured to support the sound generating module 330 and surround the sound generating module 330. For example, the housing 310 may be configured to accommodate (or receive) the sound generating module 330. For example, the housing 310 may be a housing, a shell, an outer shell, a shell member, a housing member, a casing, a sealing member, a sealing cap, a sealing box, a sound box, etc., but the embodiments of the present disclosure are not limited thereto.

[0125] The housing 310 according to an embodiment of the present disclosure may include one or more materials of a metal material and a non-metal material (or a composite non-metal material), but the embodiment of the present disclosure is not limited thereto. For example, the housing 310 may include one or more materials of a metal material, a plastic, a fiber, a carbon, and a wood, but the embodiment of the present disclosure is not limited thereto. For example, the housing 310 may be configured by a metal material such as an aluminum (Al) material, or by a plastic material such as a plastic or a styrene material, but the embodiment of the present disclosure is not limited thereto. For example, the styrene material may be an ABS material. The ABS material may be acrylonitrile, butadiene, and styrene.

[0126] The housing 310 according to an embodiment of the present disclosure may include an inner space 313 .

[0127] The internal space 313 may be configured to accommodate (or receive) the sound generating module 330. For example, the internal space 313 may be a receiving space, a receiving space, a gap space, an air space, a vibration space, a sound space, a sound box, or a sealed space, but the embodiments of the present disclosure are not limited thereto.

[0128] The housing 310 according to an embodiment of the present disclosure may include one or more housings (or housing members) 311 and 312. For example, the housing 310 may include a first housing 311 and a second housing 312.

[0129] The first housing (or first housing member) 311 may be disposed at a first surface (or rear surface or lower surface) of the sound generating module 330. The first housing 311 may be configured to support the first surface of the sound generating module 330. For example, the first housing 311 may be configured to cover the first surface of the sound generating module 330. For example, the first housing 311 may be configured to support a portion of the sound generating module 330. For example, the first housing 311 may be configured to cover at least a portion of the first surface of the sound generating module 330. For example, the first housing 311 may be configured to be connected or coupled to a portion of the sound generating module 330.

[0130] The first housing 311 according to an embodiment of the present disclosure may include a first plate 311 a and a first sidewall 311 b .

[0131] The first plate 311a may be disposed at the first surface of the sound generating module 330. The first plate 311a may be configured to cover the first surface of the sound generating module 330. The first plate 311a may be disposed or configured to be spaced apart from the first surface of the sound generating module 330.

[0132] The first side wall 311b may be connected to an edge portion (or peripheral portion) of the first plate 311a. The first side wall 311b may be vertically connected to an edge portion of the first plate 311a. For example, the first side wall 311b may be vertically connected to a first edge portion (or inner edge portion or first peripheral portion) of the first surface of the first plate 311a facing the sound generating module 330. The first side wall 311b may be configured to support a portion of the sound generating module 330. For example, the first side wall 311b may be configured to be connected or coupled to a portion of the sound generating module 330.

[0133] The first side wall 311b may be disposed between the first surface of the sound generating module 330 and the first plate 311a. The first side wall 311b may provide a space 313b on the inner lateral surface 311i of the first housing 311 or the inner lateral surface 311i of the first plate 311a. Therefore, the first surface of the sound generating module 330 may be spaced apart from the inner lateral surface 311i of the first plate 311a by the first side wall 311b.

[0134] The second housing (or second housing member) 312 may be disposed at a second surface of the sound generating module 330 that is opposite to the first surface. The second housing 312 may be configured to support the second surface of the sound generating module 330. The second housing 312 may be configured to cover the second surface of the sound generating module 330. For example, the second housing 312 may be configured to support a portion of the sound generating module 330. For example, the second housing 312 may be configured to cover the entire second surface of the sound generating module 330. For example, the second housing 312 may be configured to surround the entire second surface of the sound generating module 330. For example, the second housing 312 may be connected or coupled to a portion of the sound generating module 330.

[0135] The second housing 312 according to an embodiment of the present disclosure may include a second plate 312 a and a second sidewall 312 b .

[0136] The second plate 312a may be configured to cover the sound generating module 330. The second plate 312a may be configured to cover the second surface of the sound generating module 330. The second plate 312a may be spaced apart from the second surface of the sound generating module 330.

[0137] The second side wall 312b may be connected to an edge portion (or peripheral portion) of the second plate 312a. The second side wall 312b may be vertically connected to an edge portion of the second plate 312a. For example, the second side wall 312b may be vertically connected to a second edge portion (or inner edge portion or second peripheral portion) of the second surface of the second plate 312a facing the sound generating module 330. The second side wall 312b may be configured to support a portion of the sound generating module 330. For example, the second side wall 312b may be configured to be connected or coupled to a portion of the sound generating module 330.

[0138] According to an embodiment of the present disclosure, the internal space 313 of the housing 310 may be between the first housing 311 and the second housing 312. For example, the internal space 313 of the housing 310 may be provided at an area between the first housing 311 and the sound generating module 330, and may be provided at an area between the second housing 312 and the sound generating module 330.

[0139] According to an embodiment of the present disclosure, the inner space 313 of the housing 310 may include a first space 313 a and a second space 313 b .

[0140] The first space 313 a and the second space 313 b may be spatially separated from each other by the sound generating module 330 , but embodiments of the present disclosure are not limited thereto.

[0141] The first space 313a may include a space provided between the first housing 311 and the sound generating module 330. For example, the first space 313a may include a space provided between the first housing 311 and the first surface of the sound generating module 330. For example, the first space 313a may include a space provided between the inner lateral surface 311i of the first plate 311a and the first surface of the sound generating module 330 through the first side wall 311b of the first housing 311.

[0142] The second space 313b may include a space provided between the second housing 312 and the sound generating module 330. For example, the second space 313b may include a space provided between the second housing 312 and the second surface of the sound generating module 330. For example, the second space 313b may include a space provided between the inner surface 312i of the second plate 312a and the second surface of the sound generating module 330 through the second side wall 312b of the second housing 312.

[0143] The housing 310 according to an embodiment of the present disclosure may further include a protrusion 315 .

[0144] The protrusion 315 may be configured to output the sound or vibration generated in the internal space 313 of the housing 310 to the external space of the housing 310. The protrusion 315 may be configured to include an opening hole 315o connected (or communicated) with the internal space 313. The protrusion 315 may protrude a certain length from the rear surface 311r of the housing 310 to have the opening hole 315o. For example, the protrusion 315 may protrude from the rear surface 311r of the housing 310 along the thickness direction Z of the housing 310.

[0145] The protrusion 315 according to an embodiment of the present disclosure may protrude from the first housing 311 of the housing 310. For example, the protrusion 315 may protrude from the rear surface 311r of the first housing 311 to have an opening hole 315o. For example, the protrusion 315 may protrude in a direction perpendicular to the rear surface 311r of the first housing 311.

[0146] The protrusion 315 and the opening hole 315o may have the same cross-sectional shape, but the embodiments of the present disclosure are not limited thereto. The protrusion 315 and the opening hole 315o may be implemented as a shape suitable for outputting the sound generated in the internal space 313 of the housing 310 to the external space of the housing 310. For example, the protrusion 315 may include a linear shape, but the embodiments of the present disclosure are not limited thereto. The protrusion 315 may have a quadrilateral shape including a short side and a long side. For example, the corner portion of the protrusion 315 having a quadrilateral shape may have a curved shape. For example, the protrusion 315 may include a circular shape or an oval shape, but the embodiments of the present disclosure are not limited thereto.

[0147] According to an embodiment of the present disclosure, the protrusion 315 and the opening hole 315o may have a "-" shape (or a straight line shape) or a line shape, but the embodiment of the present disclosure is not limited thereto. The protrusion 315 and the opening hole 315o may have a "-" shape (or a straight line shape) parallel to the first direction X or the long side direction of the shell 310. For example, the protrusion 315 and the opening hole 315o may have a slit shape including a major axis and a minor axis. For example, the major axis of the protrusion 315 and the opening hole 315o may be parallel to the first direction X or the long side direction of the shell 310. For example, the minor axis of the protrusion 315 and the opening hole 315o may be parallel to the second direction Y or the short side direction of the shell 310.

[0148] According to another embodiment of the present disclosure, the protrusion 315 and the opening hole 315o may be configured to include a "+" shape (or a cross shape) or a "*" shape (or an asterisk shape) including two or more opening holes (or line holes) crossing each other.

[0149] The opening hole 315o may be formed to pass through the central portion of the protrusion 315 along the protrusion direction (or length direction) of the protrusion 315. For example, the length (or longest length or long axis length) of the opening hole 315o may be greater than the protrusion length (or protrusion height) of the protrusion 315. For example, the protrusion length of the protrusion 315 may be the length (or shortest length) between the rear surface 311r of the housing 310 (or the first housing 311) and the end of the protrusion 315.

[0150] According to an embodiment of the present disclosure, the sound or vibration generated by the sound generating module 330 in the internal space 313 of the housing 310 can be output to the outer space of the housing 310 through the opening hole 315o of the protrusion 315. For example, the protrusion 315 can be a port member, a cylinder member, a bushing member, a sound discharge member, a conduit member, or a ventilation member, but the embodiment of the present disclosure is not limited thereto. For example, the opening hole 315o of the protrusion 315 can be a hole, a groove, a slit, a hollow hole, a port hole, a first through hole, a sound discharge hole, a sound discharge portion, a sound output hole, a sound discharge port, a duct hole, or a vent hole, but the embodiment of the present disclosure is not limited thereto.

[0151] According to another embodiment of the present disclosure, the housing 310 or the first housing 311 may include an opening portion. In this case, the protrusion 315 may have an opening hole 315o connected to the opening portion and may protrude from the rear surface 311r of the housing 310 or the first housing 311 to surround the opening portion.

[0152] The first shell 311 of the shell 310 may include a sloped surface (or inclined surface) 311s. The sloped surface 311s may be configured to be inclined between the opening portion 310o and the inner lateral surface 311i of the first shell 311. The sloped surface 311s may be configured to guide the sound generated based on the vibration of the sound generating module 330 to the inner space of the vehicle 10. Therefore, the sound generated based on the vibration of the sound generating module 330 can be output to the inner space of the vehicle 10, and the sound characteristics and / or sound pressure level characteristics of the sound including the low-pitched vocal band can be further enhanced. For example, the sloped surface 311s may be a guide surface or a sound guiding surface, but the embodiments of the present disclosure are not limited thereto.

[0153] The sound generating module 330 may be at the interior space 313 of the housing 310. The sound generating module 330 may be configured to be accommodated (or received) in the interior space 313 of the housing 310. The sound generating module 330 may be configured to generate sound (or sound pressure level or sound waves) in the interior space 313 of the housing 310. For example, the sound generating module 330 may be configured to be accommodated (or received) in one or more of the first space 313a and the second space 313b of the interior space 313 of the housing 310. For example, the sound generating module 330 may be a sound generating unit, a sound generating member, a sound reproducing module, a sound reproducing unit, a car audio module, a car audio unit, a speaker module or a speaker unit, but the embodiments of the present disclosure are not limited thereto.

[0154] The sound generation module 330 according to an embodiment of the present disclosure may be configured to generate or output sound or vibration. For example, the sound generation module 330 may be configured to output sound or vibration to the inner space of the vehicle based on driving (or vibration). For example, the sound or vibration generated based on the driving (or vibration) of the sound generation module 330 may be output to the inner space of the vehicle through the opening hole 315o of the protrusion 315.

[0155] The sound generation module 330 according to another embodiment of the present disclosure can generate sound based on the vibration of a vibrating object or a vehicle structure. For example, the sound generation module 330 can be configured to vibrate a vehicle interior material. For example, the sound generation module 330 can generate or output sound or vibration based on the vibration (or displacement) of the vehicle interior material. For example, the sound (or sound wave) generated based on the drive (or vibration) of the sound generation module 330 can vibrate the vehicle interior material, and the sound or vibration generated based on the vibration of the vehicle interior material can be directly output to the interior space of the vehicle.

[0156] The sound generation module 330 according to another embodiment of the present disclosure can generate sound based on the vibration of the housing 310 and the vibrating object (or vehicle structure). For example, the sound generation module 330 can be configured to vibrate the housing 310 and the vibrating object (or vehicle structure) or directly vibrate the housing 310 and the vibrating object (or vehicle structure). For example, the sound generation module 330 can generate or output sound or vibration based on the vibration (or displacement) of the housing 310 and the vehicle interior material. For example, the sound (or sound wave) generated in the internal space 313 of the housing 310 based on the drive (or vibration) of the sound generation module 330 can vibrate the housing 310, the vibration of the housing 310 can vibrate the vehicle interior material, and the sound or vibration generated based on the vibration of the vehicle interior material can be output to the inner space of the vehicle.

[0157] According to another embodiment of the present disclosure, a part of the sound (or sound wave or vibration) generated in the internal space 313 of the housing 310 based on the driving (or vibration) of the sound generating module 330 can be output to the inner space of the vehicle through the opening hole 315o of the protrusion 315, and another part of the sound (or sound wave or vibration) generated based on the driving (or vibration) of the sound generating module 330 can vibrate one or more of the housing 310 and the vehicle interior material. The sound or vibration generated based on the vibration of one or more of the housing 310 and the vehicle interior material can be output to the inner space of the vehicle.

[0158] The sound generating module 330 according to an embodiment of the present disclosure may include a vibration member 331 and vibration devices 333 and 335 .

[0159] The vibration member 331 may generate vibrations or may output sounds (or sound waves or sound pressure levels) based on the driving (or vibration) of the vibration devices 333 and 335. For example, the vibration member 331 may generate vibrations or output sounds (or sound waves) in the internal space 313 of the housing 310 based on the vibrations (or displacements) of the vibration devices 333 and 335. For example, the vibration member 331 may be a plate, a vibration plate, a vibration membrane, a vibration substrate, a vibration object, a vibration panel, a sound plate, a sound panel, a passive vibration plate, a passive vibration member, a passive vibration panel, a sound output plate, or a sound vibration plate, but the embodiments of the present disclosure are not limited thereto.

[0160] According to an embodiment of the present disclosure, the vibration member 331 may include a metal material, or may include a single non-metal material or a composite non-metal material of one or more of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, but the embodiments of the present disclosure are not limited thereto. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be pulp or foam plastic, etc., but the embodiments of the present disclosure are not limited thereto.

[0161] The metal material of the vibration member 331 may include one or more materials of stainless steel, aluminum (Al), Al alloy, magnesium (Mg), Mg alloy, and magnesium-lithium (Mg-Li) alloy, but the embodiments of the present disclosure are not limited thereto. For example, the vibration member 331 may be configured with a metal material such as an aluminum (Al) material, or with a plastic material such as a plastic or styrene material, but the embodiments of the present disclosure are not limited thereto.

[0162] The plastic material of the vibration member 331 may be configured with polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, cycloolefin copolymer, or carbon fiber reinforced plastic (CFRP), etc., but embodiments of the present disclosure are not limited thereto.

[0163] The styrene material of the vibration member 331 may be ABS material. The ABS material may be acrylonitrile, butadiene, and styrene.

[0164] The vibration member 331 may include a porous material. For example, the vibration member 331 may include a microporous plastic material. For example, the vibration member 331 may be configured with a polyethylene terephthalate material or a polycarbonate material. For example, the vibration member 331 may be configured with a microporous polyethylene terephthalate (MCPET) material. The vibration member 331 configured with MCPET may have the ability to reproduce high original sound due to low density and excellent elastic force, thereby improving the quality of the sound.

[0165] According to an embodiment of the present disclosure, the vibration member 331 may include a quadrilateral shape, but the embodiments of the present disclosure are not limited thereto. For example, the vibration member 331 may have a rectangular shape including a long side and a short side. For example, the vibration member 331 may include a first surface and a second surface different from (or opposite to) the first surface. For example, in the vibration member 331, the first surface may be a rear surface, a dorsal lateral surface, or a lower surface, and the second surface may be a front surface or an upper surface, but the embodiments of the present disclosure are not limited thereto.

[0166] The vibration devices 333 and 335 may be configured to vibrate the vibration member 331. The vibration devices 333 and 335 may be configured to vibrate (or displace or drive) based on a drive signal (or vibration drive signal or voice signal) applied thereto to vibrate (or displace or drive) the vibration member 331.

[0167] The vibration devices 333 and 335 may correspond to the vibration member 331, or have the same shape as the vibration member 331, but the embodiments of the present disclosure are not limited thereto. For example, the vibration devices 333 and 335 may have a shape different from the vibration member 331. For example, the vibration devices 333 and 335 may include a rectangular shape or a square shape. For example, the vibration devices 333 and 335 may have a rectangular shape or a square shape smaller than the vibration member 331.

[0168] The vibration devices 333 and 335 may be disposed or configured at the vibration member 331. For example, the vibration devices 333 and 335 may be disposed or configured at one or more of the first surface and the second surface of the vibration member 331. For example, the sound generation module 330 may include a plurality of vibration devices 333 and 335. For example, the plurality of vibration devices 333 and 335 may be disposed or configured at one or more of the first surface and the second surface of the vibration member 331. For example, the plurality of vibration devices 333 and 335 may be disposed or configured at each of the first surface and the second surface of the vibration member 331, wherein the vibration member 331 is between the plurality of vibration devices 333 and 335.

[0169] The sound generating module 330 or the vibration devices 333 and 335 according to an embodiment of the present disclosure may include a first vibration device 333 and a second vibration device 335 .

[0170] The first vibration device 333 and the second vibration device 335 may be disposed at the vibration member 331. The vibration member 331 may be disposed between the first vibration device 333 and the second vibration device 335. For example, the first vibration device 333 may be disposed or configured at a first surface (or rear surface) of the vibration member 331, and the second vibration device 335 may be disposed or configured at a second surface (or front surface) of the vibration member 331.

[0171] According to an embodiment of the present disclosure, the long side of each of the first vibration device 333 and the second vibration device 335 may be parallel to the long side of the vibration member 331, and may be spaced apart from the long side of the vibration member 331 to have a first distance (or a first shortest distance). For example, each of the first vibration device 333 and the second vibration device 335 may have a rectangular shape smaller than the size of the vibration member 331.

[0172] The first vibration device 333 and the second vibration device 335 may vibrate (or shift or drive) based on a drive signal (or vibration drive signal or voice signal) applied thereto to vibrate (or shift or drive) the vibration member 331. The vibration member 331 may generate vibration based on the displacement (or drive) of the first vibration device 333 and the second vibration device 335 or may output sound (or sound waves).

[0173] According to another embodiment of the present disclosure, the driving signals (or vibration driving signals or voice signals) applied to the first vibration device 333 and the second vibration device 335 may be the same or different. For example, the driving signals applied to the first vibration device 333 and the second vibration device 335 may have the same phase or different phases. For example, the first vibration device 333 and the second vibration device 335 may have a bimorph structure in which a vibration member 331 is provided between the first vibration device 333 and the second vibration device 335. Each of the first vibration device 333 and the second vibration device 335 may independently vibrate the vibration member 331, and therefore, its influence on the sound characteristics based on the material and characteristics of the vibration member 331 may be reduced. Therefore, the sound characteristics and / or sound pressure level characteristics of the sound device 30 may be enhanced.

[0174] According to another embodiment of the present disclosure, the first vibration device 333 and the second vibration device 335 may be configured at any one of the first surface and the second surface of the vibration member 331. For example, the first vibration device 333 may be configured at any one of the first surface and the second surface of the vibration member 331. For example, the first vibration device 333 may be connected to the first surface of the vibration member 331 or configured at the first surface of the vibration member 331. For example, the second vibration device 335 may be connected to the first vibration device 333 or configured at the first vibration device 333. For example, the second vibration device 335 may be stacked on the first vibration device 333.

[0175] The sound device 30 or the sound generating module 330 according to an embodiment of the present disclosure may further include adhesive members 332 and 334. For example, the adhesive member may include a first adhesive member 332 and a second adhesive member 334.

[0176] The first adhesive member 332 may be disposed (or interposed) between the vibration member 331 and the first vibration device 333. The first vibration device 333 may be connected or coupled to the vibration member 331 through the first adhesive member 332. For example, the first vibration device 333 may be connected or coupled to a first surface of the vibration member 331 through the first adhesive member 332.

[0177] The second adhesive member 334 may be disposed (or interposed) between the vibration member 331 and the second vibration device 335. The second vibration device 335 may be connected or coupled to the vibration member 331 through the second adhesive member 334. For example, the second vibration device 335 may be connected or coupled to the second surface of the vibration member 331 through the second adhesive member 334.

[0178] The first adhesive member 332 and the second adhesive member 334 may include an adhesive layer (or adhesive layer) with good adhesive force or attachment force. For example, the first adhesive member 332 and the second adhesive member 334 may include the same or different adhesive layers (or adhesive layers). For example, the first adhesive member 332 and the second adhesive member 334 may include an adhesive, a double-sided adhesive, a double-sided tape, a double-sided adhesive tape, a double-sided adhesive foam tape, a double-sided pad, a double-sided foam pad, a double-sided adhesive foam pad, a double-sided buffer tape or an adhesive sheet, but the embodiments of the present disclosure are not limited thereto.

[0179] The sound device 30 according to the embodiment of the present disclosure may further include a coupling member 320 .

[0180] The coupling member 320 may be configured to connect or couple the vibration member 331 and the housing 310 to each other. For example, the coupling member 320 may be between an edge portion (or peripheral portion) of the vibration member 331 and the housing 310. The coupling member 320 may include a first coupling member 321 and a second coupling member 322.

[0181] The first coupling member 321 may be between the vibration member 331 and the first housing 311. The first coupling member 321 may be connected or coupled between an edge portion of the vibration member 331 and the first housing 311. For example, the first side wall 311b of the first housing 311 may be connected or coupled to a first surface of the vibration member 331 through the first coupling member 321. For example, the first side wall 311b of the first housing 311 may be connected or coupled to an edge portion of the first surface of the vibration member 331 through the first coupling member 321.

[0182] The second coupling member 322 may be between the vibration member 331 and the second housing 312. The second coupling member 322 may be connected or coupled between an edge portion of the vibration member 331 and the second housing 312. For example, the second sidewall 312b of the second housing 312 may be connected or coupled to the second surface of the vibration member 331 through the second coupling member 322. For example, the second sidewall 312b of the second housing 312 may be connected or coupled to an edge portion of the second surface of the vibration member 331 through the second coupling member 322.

[0183] According to an embodiment of the present disclosure, the coupling member 320 may be configured to minimize the transmission of the vibration of the vibration member 331 to the first side wall 311b of the first shell 311. The coupling member 320 may include material properties suitable for blocking vibration. For example, the coupling member 320 may include a material having elasticity. For example, the coupling member 320 may include a material having elasticity for vibration absorption (or shock absorption). The coupling member 320 according to an embodiment of the present disclosure may be configured with a polyurethane material or a polyolefin material, but the embodiments of the present disclosure are not limited thereto. For example, the coupling member 320 may include one or more of an adhesive, a double-sided adhesive, a double-sided tape, a double-sided adhesive tape, a double-sided foam tape, a double-sided adhesive foam tape, a double-sided pad, a double-sided foam pad, a double-sided adhesive foam pad, and a double-sided buffer tape, but the embodiments of the present disclosure are not limited thereto.

[0184] The sound device 30 according to the embodiment of the present disclosure may further include a coupling portion 500 .

[0185] The coupling portion 500 may be configured to couple the housing 310 to the vehicle interior material 130 (or installation object) when the housing 310 is installed on the vehicle interior material 130 (or installation object). The coupling portion 500 may be configured to connect or couple the housing 310 to the vehicle interior material 130. The coupling portion 500 may be configured to fix the housing 310 installed on the vehicle interior material 130. For example, the sound device 30 or the housing 310 may be connected or coupled to the vehicle interior material 130 through the coupling portion 500. The sound based on the vibration of the sound generating module 330 may be output to the inner space of the vehicle through the coupling portion 500. For example, the coupling portion 500 may be a coupling device, a coupling structure, a cover structure, a sound covering member, a sound guiding member, a waveguide or a sound exhaust member, etc., but the embodiments of the present disclosure are not limited thereto. For example, the installation object may be a structure having the sound device 30 or the housing 310 installed thereon.

[0186] The coupling portion 500 according to an embodiment of the present disclosure may include a hollow portion 501 connected to the internal space 313 of the housing 310, and may be configured to be accommodated (or inserted) into the opening hole 315o of the protrusion 315 at the housing 310. The coupling portion 500 may be detachably fastened (or coupled) to the protrusion 315 at the housing 310. For example, the coupling portion 500 and the protrusion 315 may be fastened (or coupled) to each other through a hook fastening scheme using a protrusion 315p and a hole 500h. For example, the protrusion 315 may include a protrusion 315p at the opening hole 315o, and the coupling portion 500 may include a hole 500h that accommodates the protrusion 315p of the protrusion 315, but the embodiments of the present disclosure are not limited thereto.

[0187] According to an embodiment of the present disclosure, the protrusion 315 of the housing 310 may pass through (or penetrate) the vehicle interior material 130 (or the installation object). For example, in the case where the sound device 30 is equipped (or installed) at the vehicle interior material 130, the protrusion 315 may pass through a portion of the vehicle interior material 130. The vehicle interior material 130 may include a hole 137 to accommodate the protrusion 315. For example, the coupling portion 500 may pass through the hole 137 of the vehicle interior material 130 and may be detachably fastened (or coupled) to the protrusion 315. For example, the hole 137 may be a through hole, a first through hole, an opening portion, an opening hole, a slit, a groove, a sound hole, a sound discharge hole, or a sound output hole, but the embodiments of the present disclosure are not limited thereto.

[0188] The hollow portion 501 of the coupling portion 500 may be connected (or communicated) with the opening hole 315o at the protrusion 315 of the housing 310. The hollow portion 501 may be connected to the internal space 313 of the housing 310. For example, the hollow portion 501 may be connected to the internal space 313 of the housing 310 through the opening hole 315o of the protrusion 315. For example, the hollow portion 501 may be connected to the first space 313a in the internal space 313 of the housing 310 through the opening hole 315o of the protrusion 315. The sound (or sound wave) based on the vibration of the sound generating module 330 may be output to the inner space of the vehicle through the opening hole 315o of the protrusion 315 and the hollow portion 501 of the coupling portion 500. The sound (or sound wave) generated in the internal space 313 of the housing 310 based on the vibration of the sound generating module 330 may be output to the inner space of the vehicle through the hollow portion 501 of the coupling portion 500 and the opening hole 315o of the protrusion 315.

[0189] The coupling portion 500 according to an embodiment of the present disclosure may further include a hollow member 502 and a latch member 503 .

[0190] The hollow member 502 can be accommodated (or inserted) into the opening hole 315o in the opening portion 310o of the housing 310. The hollow member 502 can be connected or coupled to the protrusion 315 of the housing 310 through the hole 137 of the vehicle interior material 130. The hollow member 502 can be detachably fastened to the protrusion 315 of the housing 310. The hollow member 502 can be accommodated (or inserted) into the opening hole 315o of the protrusion 315, and can be fastened to the protrusion 315 by a hook fastening scheme. For example, the hollow member 502 can be fastened to the protrusion 315 during the process of being accommodated (or inserted) into the opening hole 315o of the protrusion 315. For example, the hollow member 502 can be elastically deformed (or strained) and fastened to the protrusion 315 during the process of being accommodated (or inserted) into the opening hole 315o of the protrusion 315. For example, the hollow member 502 may be fastened to the protrusion 315 by the elastic restoring force of the protrusion 315 during accommodation (or insertion) into the opening hole 315 o of the protrusion 315 .

[0191] The hollow member 502 may include a hollow portion 501. The hollow portion 501 may be connected to the opening hole 315o of the protrusion 315. The hollow portion 501 may be connected to the internal space 313 of the housing 310. The hollow portion 501 may be connected to the internal space 313 of the housing 310 through the opening hole 315o of the protrusion 315. For example, the hollow portion 501 may be a sound exhaust port or a sound output port, but the embodiments of the present disclosure are not limited thereto.

[0192] The latch member 503 may be configured to be connected or coupled to the vehicle interior material 130 (or the installation object). For example, the latch member 503 may be configured to contact or be in close contact with the vehicle interior material 130 (or the installation object) on which the housing 310 is installed. The latch member 503 may contact or be in close contact with the vehicle interior material 130 at the periphery of the hole 137 of the vehicle interior material 130. For example, the latch member 503 may be connected or in contact or in close contact with the inner surface 130s of the vehicle interior material 130 at the periphery of the hole 137 of the vehicle interior material 130. For example, the inner surface 130s of the vehicle interior material 130 may be a first surface, an inner surface, a rear surface, or a lower surface. For example, the latch member 503 may be a latch, etc., but the embodiments of the present disclosure are not limited thereto.

[0193] The latch member 503 may be connected to the hollow member 502 or configured at the hollow member 502. The latch member 503 may be connected to the hollow member 502 to have a certain length L. For example, the outer surface of the hollow member 502 may be adjacent to the inner surface 130s of the vehicle interior material 130. For example, the hollow member 502 may cover the inner surface 130s of the vehicle interior material 130 at the periphery of the hole 137 of the vehicle interior material 130. For example, the latch member 503 may be in contact or in close contact with the inner surface 130s of the vehicle interior material 130 at the periphery of the hole 137 of the vehicle interior material 130. Therefore, the periphery of the hole 137 of the vehicle interior material 130 may be disposed or inserted between the latch member 503 and the housing 310, and the housing 310 may be equipped in the vehicle interior material 130 (or mounted thereon).

[0194] Figure 4 The embodiment according to the present disclosure is shown Figure 3 The protrusion shown in FIG.

[0195] Reference Figure 3 and Figure 4 , the protrusion 315 according to an embodiment of the present disclosure may include a first protruding wall 315 a , a second protruding wall 315 b , and one or more protrusions 315 p .

[0196] Each of the first protruding wall 315a and the second protruding wall 315b may protrude or protrude vertically from the rear surface 311r of the housing 310 or the first housing 311. The first protruding wall 315a and the second protruding wall 315b may protrude to face each other. For example, when the housing 310 or the first housing 311 includes an opening portion 310o corresponding to the opening hole 315o of the protrusion 315, each of the first protruding wall 315a and the second protruding wall 315b may be configured to face the first side and the second side of the opening portion 310o.

[0197] Each of the first protruding wall 315a and the second protruding wall 315b may protrude vertically from the first housing 311 or the rear surface 311r of the housing 310 to have a certain height, and thus have (or obtain) elasticity. For example, each of the first protruding wall 315a and the second protruding wall 315b may be elastically deformed away from (or at a distance from) the center portion of the opening hole 315o or in a direction closer to the center portion of the opening hole 315o.

[0198] The first protruding wall 315a may be configured to be parallel to the first direction X or the long side direction of the housing 310. The first protruding wall 315a may have a "-" shape (or a straight line shape) or a line shape having a certain length. For example, the first protruding wall 315a may configure the first long side or the first side wall of the protrusion 315.

[0199] The second protruding wall 315b can be configured to be parallel to the first protruding wall 315a. For example, the second protruding wall 315b can be configured to be parallel to the first protruding wall 315a, wherein the opening hole 315o is between the first protruding wall 315a and the second protruding wall 315b. The second protruding wall 315b can have a "-" shape (or a straight line shape) or a straight line shape with the same length as the first protruding wall 315a. For example, the second protruding wall 315b can configure the second long side or the second side wall of the protrusion 315. For example, the first protruding wall 315a and the second protruding wall 315b can be configured to directly face each other, wherein the opening hole 315o is between the first protruding wall 315a and the second protruding wall 315b.

[0200] The one or more protrusions 315 p may be one or more first fastening members (or first fastening means) for fastening (or coupling) between the coupling portion 500 and the protrusion 315 , but embodiments of the present disclosure are not limited thereto.

[0201] The protrusion 315 or the one or more protrusions 315p may include a first protrusion 315p1 and a second protrusion 315p2.

[0202] The first protrusion 315p1 and the second protrusion 315p2 may be one or more first fastening members (or first fastening means) for fastening (or coupling) between the coupling portion 500 and the protrusion 315, but embodiments of the present disclosure are not limited thereto.

[0203] The first protrusion 315p1 may protrude from the inner surface of the first protruding wall 315a to be disposed in the opening hole 315o. For example, the first protrusion 315p1 may protrude from the inner surface of the first protruding wall 315a facing the second protruding wall 315b in a direction toward the center portion of the opening hole 315o.

[0204] The first protrusion 315 p 1 according to an embodiment of the present disclosure may protrude from the inner surface of the first protruding wall 315 a to include a hemispherical shape.

[0205] The first protrusion 315p1 according to another embodiment of the present disclosure may include a locking (or latching) protrusion (or latching portion) and a sliding protrusion (or sliding portion).

[0206] The locking projection may protrude from the inner surface of the first protruding wall 315a to have a disc shape. The lateral surface of the locking projection may be configured with a vertical surface. The lateral surface of the locking projection may be perpendicular to the inner surface of the first protruding wall 315a. The locking projection may be configured to prevent the coupling portion 500 fastened to the protrusion 315 from being separated or disengaged from the protrusion 315 by a relatively weak force. For example, the protruding height (or protruding length) of the locking projection may be less than the thickness of the hollow member 502 of the coupling portion 500.

[0207] The sliding protrusion may protrude from the locking protrusion. The sliding protrusion may include a curved surface. For example, the sliding protrusion may include a hemispherical shape. Because the sliding protrusion has a curved shape, the coupling portion 500 may be easily fastened to the protrusion 315.

[0208] The second protrusion 315p2 may protrude from the inner surface of the second protruding wall 315b to be disposed in the opening hole 315o. For example, the second protrusion 315p2 may protrude from the inner surface of the second protruding wall 315b facing the first protruding wall 315a in a direction toward the center portion of the opening hole 315o. For example, the second protrusion 315p2 may protrude from the inner surface of the second protruding wall 315b facing the first protrusion 315p1.

[0209] The second protrusion 315p2 according to an embodiment of the present disclosure may protrude from the inner surface of the second protruding wall 315b to include a hemispherical shape.

[0210] The second protrusion 315p2 according to another embodiment of the present disclosure may include a lock (or latch) protrusion (or hanging portion or latch portion) and a sliding protrusion (or sliding portion). Except that the lock protrusion and the sliding protrusion of the second protrusion 315p2 protrude from the inner surface of the second protruding wall 315b, the lock protrusion and the sliding protrusion of the second protrusion 315p2 may be substantially the same as the lock protrusion and the sliding protrusion of the first protrusion 315p1, and thus their description is omitted.

[0211] The protrusion 315 according to the embodiment of the present disclosure may further include a third protrusion wall 315 c and a fourth protrusion wall 315 d .

[0212] The third protruding wall 315c may be configured to be connected to one lateral surface of each of the first protruding wall 315a and the second protruding wall 315b. The third protruding wall 315c may have a "-" shape (or a straight line shape), a curved shape, or a hemispherical shape. The third protruding wall 315c may configure the first short side or the third side wall of the protrusion 315.

[0213] The fourth protruding wall 315d may be configured to be connected to the other lateral surface of each of the first protruding wall 315a and the second protruding wall 315b. The fourth protruding wall 315d may have a "-" shape (or a straight line shape), a curved shape, or a hemispherical shape. The fourth protruding wall 315d may configure the second short side or the fourth side wall of the protrusion 315.

[0214] The protrusion 315 including the first to fourth protrusion walls 315a, 315b, 315c and 315d may include a rectangular shape or a rectangular shape with rounded corners. Therefore, the opening hole 315o of the protrusion 315 may be surrounded by the first to fourth protrusion walls 315a, 315b, 315c and 315d.

[0215] Figure 5 Another embodiment according to the present disclosure is shown. Figure 3 The protrusion shown in FIG. Figure 5 As shown in the above reference Figure 4 Therefore, in the following description, one or more slits will be described in detail, and other elements may be the same as those described above. Figure 4 The elements described are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figure 4 The description can be included in Figure 5 in the description.

[0216] Reference Figures 3 to 5 , the protrusion 315 according to another embodiment of the present disclosure may further include one or more slits 315s1 and 315s2. One or more slits 315s1 and 315s2 may be configured at each of the first protruding wall 315a and the second protruding wall 315b. For example, the protrusion 315 may further include one or more slits 315s1 and 315s2 configured at each of the first protruding wall 315a and the second protruding wall 315b.

[0217] The protrusion 315 according to another embodiment of the present disclosure may further include one or more first slits 315s1 and one or more second slits 315s2.

[0218] One or more first slits 315s1 may be configured at the first protruding wall 315a. For example, one or more first slits 315s1 may be configured to separate the first protruding wall 315a from the third protruding wall 315c or to separate the first protruding wall 315a from the fourth protruding wall 315d. For example, the protrusion 315 may include a plurality of first slits 315s1. A plurality of first slits 315s1 may be configured at the first protruding wall 315a, wherein the first protrusion 315p1 is between the plurality of first slits 315s1 and the first protruding wall 315a. A plurality of first slits 315s1 may be configured to separate each of the third protruding wall 315c and the fourth protruding wall 315d from the first protruding wall 315a. Therefore, the first protruding wall 315a may be separated from one or more of the third protruding wall 315c and the fourth protruding wall 315d by one or more first slits 315s1, and thus may be easily elastically strained (or elastically deformed).

[0219] One or more second slits 315s2 may be configured at the second protruding wall 315b. For example, one or more second slits 315s2 may be configured to separate the second protruding wall 315b from the third protruding wall 315c or to separate the second protruding wall 315b from the fourth protruding wall 315d. For example, the protrusion 315 may include a plurality of second slits 315s2. A plurality of second slits 315s2 may be configured at the second protruding wall 315b, wherein the second protrusion 315p2 is between a plurality of second slits 315s2 and the second protruding wall 315b. A plurality of second slits 315s2 may be configured to separate each of the third protruding wall 315c and the fourth protruding wall 315d from the second protruding wall 315b. Therefore, the second protruding wall 315b may be separated from one or more of the third protruding wall 315c and the fourth protruding wall 315d by one or more second slits 315s2, and thus may be easily elastically strained (or elastically deformed).

[0220] Figure 6 The embodiment according to the present disclosure is shown Figure 3 The coupling portion shown in FIG.

[0221] Reference Figures 3 to 6 , the coupling portion 500 according to an embodiment of the present disclosure may include a hollow member 502 and one or more holes 500h.

[0222] The hollow member 502 may be configured to be accommodated in the protrusion 315 of the housing 310. The hollow member 502 may be accommodated in the opening hole 315o of the protrusion 315. The hollow member 502 may be configured to have a shape corresponding to the opening hole 315o of the protrusion 315. For example, the hollow member 502 may be configured to have a size and shape that enables the hollow member 502 to be accommodated (or inserted) into the opening hole 315o of the protrusion 315. For example, the hollow member 502 may include a rectangular shape or a rectangular shape with rounded corners.

[0223] The hollow member 502 may be configured to have a length that does not protrude into the internal space 313 of the housing 310 when the protrusion 315 is fastened to the coupling portion 500. For example, the hollow member 502 may include a first end (or lower surface) 500a and a second end (or upper surface) 500b opposite to the first end 500a. For example, when the protrusion 315 is fastened to the coupling portion 500, the first end 500a of the hollow member 502 may protrude into the inner surface 130s of the vehicle interior material 130, and the second end 500b of the hollow member 502 may be disposed (or located) in (inside) the opening hole 315o of the protrusion 315 to be adjacent to the internal space 313 of the housing 310. For example, the hollow member 502 may be a port member, a cylinder member, a bushing member, a sound exhaust member, a duct member, or a vent member, but the embodiments of the present disclosure are not limited thereto.

[0224] The hollow member 502 may include a hollow portion 501. The hollow portion 501 may be configured to pass through the first end 500a and the second end 500b of the hollow member 502 along the length direction (or longitudinal direction) of the hollow member 502. The hollow portion 501 may be configured to have a shape corresponding to the opening hole 315o of the protrusion 315.

[0225] According to an embodiment of the present disclosure, the thickness 502t of the hollow member 502 may be smaller than the total protrusion height (or protrusion length) H1 of the protrusion 315p configured at the protrusion 315 to prevent the coupling portion 500 from being separated or disengaged from the protrusion 315 by a relatively weak force, and the coupling portion 500 is separated or disengaged from the protrusion 315 by using a pressing (or pushing) jig inserted into the hollow portion 501. For example, the thickness 502t of the hollow member 502 may be greater than the protrusion height (or protrusion length) of the locking protrusion of the protrusion 315p configured in the protrusion 315, and may be smaller than the total protrusion height (or protrusion length) H1 of the protrusion 315p. For example, when the thickness 502t of the hollow member 502 is greater than the total protrusion height (or protrusion length) H1 of the protrusion 315p configured at the protrusion 315, the coupling portion 500 fastened to the protrusion 315 may be separated or disengaged from the protrusion 315 by a relatively weak force.

[0226] According to an embodiment of the present disclosure, the hollow portion 501 of the coupling portion 500 may be configured to have a certain width W. For example, the width W of the hollow portion 501 may be the short axis length of the hollow portion 501. The width W of the hollow portion 501 or the short axis length of the hollow portion 501 may be 1 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the width W of the hollow portion 501 or the short axis length of the hollow portion 501 may be 1 mm to 5 mm or less, but the embodiments of the present disclosure are not limited thereto.

[0227] According to an embodiment of the present disclosure, as the width W of the hollow portion 501 increases, the sound pressure level may be enhanced, and dust or particles from the outside may flow into the internal space of the housing 310. According to an embodiment of the present disclosure, the width W of the hollow portion 501 may be 1 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the width W of the hollow portion 501 may be 1 mm to 5 mm to reduce and minimize the inflow of dust or particles from the outside, but the embodiments of the present disclosure are not limited thereto.

[0228] According to an embodiment of the present disclosure, since the width W of the hollow portion 501 is configured to be 1 mm or more, the sound characteristics and / or sound pressure level characteristics in the tonal vocal band including the sound of the low-pitched vocal band can be enhanced, and the peak and / or the dip in the high-pitched vocal band can be improved, thereby enhancing the balance characteristics of the sound pressure level and / or the flatness characteristics of the sound pressure level. According to an embodiment of the present disclosure, since the width W of the hollow portion 501 is configured to be 1 mm or more, dust or particles flowing in from the outside can be reduced or minimized.

[0229] One or more holes 500h may be one or more second fastening members (or second fastening means) for fastening (or coupling) between the coupling portion 500 and the protrusion 315, but embodiments of the present disclosure are not limited thereto. For example, one or more holes 500h may be a receiving hole, a coupling hole, a hook hole, a connection hole, or a fastening hole, but embodiments of the present disclosure are not limited thereto.

[0230] The coupling portion 500 or the one or more holes 500h may include a first hole 500h1 and a second hole 500h2.

[0231] The first hole 500h1 may be configured to receive the first protrusion 315p1 of the protrusion 315. The first hole 500h1 may be configured at one side portion 502a of the hollow member 502, and may be configured to receive the first protrusion 315p1 of the protrusion 315. For example, the one side portion 502a of the hollow member 502 may be a first long side or a first side wall of the hollow member 502. For example, in a state where the coupling part 500 is fastened to the protrusion 315, the one side portion 502a of the hollow member 502 may face the first protruding wall 315a.

[0232] The first hole 500h1 may be configured to pass through one side portion 502a of the hollow member 502 along the thickness direction of the hollow member 502. For example, the center direction of the first hole 500h1 may be perpendicular to the length direction of the hollow member 502, or may be perpendicular to the center direction of the hollow member 502. For example, the center direction of the first hole 500h1 may be parallel to the short side direction of the housing 310.

[0233] The first hole 500h1 may be configured to pass through a side portion of the hollow member 502 to correspond to the position of the first protrusion 315p1. The first hole 500h1 may be configured to have a size (or diameter) and shape that enables the first protrusion 315p1 to be inserted into the first hole 500h1. For example, in the case where the protrusion 315 is fastened to the coupling portion 500, the first protrusion 315p1 may be accommodated (or inserted) into the first hole 500h1. For example, a portion of the first protrusion 315p1 accommodated (or inserted) into the first hole 500h1 may protrude into the hollow portion 501. For example, an end portion of the first protrusion 315p1 may pass through the first hole 500h1 and may protrude into the hollow portion 501. For example, an end portion of the first protrusion 315p1 having a hemispherical shape may pass through the first hole 500h1 and may protrude into the hollow portion 501. Therefore, when the coupling portion 500 fastened to the protrusion 315 is separated or detached, the coupling portion 500 may be easily separated or detached from the protrusion 315 .

[0234] The second hole 500h2 may be configured to receive the second protrusion 315p2 of the protrusion 315. The second hole 500h2 may be configured at the other side portion 502b of the hollow member 502, and may be configured to receive the second protrusion 315p2 of the protrusion 315. For example, the other side portion 502b of the hollow member 502 may be the second long side or the second side wall of the hollow member 502. For example, in a state where the coupling portion 500 is fastened to the protrusion 315, the other side portion 502b of the hollow member 502 may face the second protruding wall 315b.

[0235] The second hole 500h2 may be substantially the same as the first hole 500h1 except that the second hole 500h2 is disposed at the other side portion 502b of the hollow member 502, and thus a description thereof is omitted.

[0236] The coupling portion 500 according to an embodiment of the present disclosure may further include a latch member 503 .

[0237] The latch member 503 may be configured to have a certain length L (or a second width). The latch member 503 may be connected to an outer surface (or outer peripheral surface) of one side of the hollow member 502 or be configured at an outer surface (or outer peripheral surface) of one side of the hollow member 502 to have a certain length L. The latch member 503 may be connected to an outer surface of one side of the hollow member 502 or be configured at an outer surface of one side of the hollow member 502 to be parallel to or face the inner surface 130s of the vehicle interior material 130. The latch member 503 may be connected to a first end 500a of the hollow member 502 or be configured at a first end 500a of the hollow member 502 to have a certain length L. For example, the latch member 503 may be configured to have a plate shape corresponding to the shape of the hollow member 502 or the protrusion 315.

[0238] The latch member 503 may extend or protrude from the outer surface of one side of the hollow member 502 to have a certain length L. The length L of the latch member 503 may be a length extending from the outer surface (or outer peripheral surface) of the hollow portion 501 in a direction parallel to the vehicle interior material 130. For example, a first length L of the latch member 503 may be a length extending from the first end 500a of the hollow member 502 in a direction parallel to the vehicle interior material 130. The latch member 503 having the length L may overlap with at least one of the vehicle interior material 130, the connecting member 350, and the housing 310. For example, the length L of the latch member 503 may be the same as the length of the short side of the hollow portion 501.

[0239] As the length L of the coupling portion 500 or the latch member 503 decreases, the sound pressure level characteristics can be enhanced. According to an embodiment of the present disclosure, the length L of the latch member 503 may be 10 mm or more, but the embodiment of the present disclosure is not limited thereto. For example, the length L of the latch member 503 may be 10 mm or more and less than 19 mm, but the embodiment of the present disclosure is not limited thereto. For example, when the length L of the latch member 503 is less than 10 mm, the sinking and / or peak of the sound can be improved, but there may be a problem that it is difficult to equip the sound device in the roof decoration of the vehicle equipment. According to an embodiment of the present disclosure, because the length L of the latch member 503 is configured to be 10 mm or more and less than 19 mm, the sound characteristics and / or sound pressure level characteristics in the tone vocal band of the sound including the low-pitched vocal band can be enhanced, and the peak and / or sinking in the high-pitched vocal band can be improved, thereby enhancing the balance characteristics of the sound pressure level or the flatness characteristics of the sound pressure level.

[0240] According to another embodiment of the present disclosure, since the coupling portion 500 is configured to include one or more of the width W of the hollow portion 501 and the length L of the latch member 503 , the sound characteristics and / or sound pressure level characteristics of the sound device 30 may be more enhanced.

[0241] Figure 7 According to the embodiments of the present disclosure Figure 3 An exploded perspective view of the sound device shown. Figure 8 A process of fastening a coupling portion to a protrusion of a housing according to another embodiment of the present disclosure is shown.

[0242] Reference Figure 7 and Figure 8 , the protrusion 315 of the housing 310 may be received (or inserted) into the hole 137 of the vehicle interior material 130. The opening hole 315o of the protrusion 315 may be exposed to the inner surface 130s of the vehicle interior material 130. For example, the opening hole 315o of the protrusion 315 may be exposed to the inner space of the vehicle.

[0243] The coupling portion 500 may be accommodated (or inserted) into the opening hole 315o of the protrusion 315 by being pressed (or pushed) (vertical arrow direction AR1), and may be coupled or fastened to the protrusion 315. In the process of pressing (or pushing) the coupling portion 500 into the opening hole 315o of the protrusion 315, the first protrusion 315p1 at the first protruding wall 315a of the protrusion 315 and the second protrusion 315p2 at the second protruding wall 315b of the protrusion 315 may be accommodated (or inserted) into the first hole 500h1 and the second hole 500h2 of the hollow member 502, respectively, and thus, the coupling portion 500 may be fastened to the protrusion 315.

[0244] According to an embodiment of the present disclosure, in the process of pressing (or pushing) the coupling portion 500 into the opening hole 315o of the protrusion 315, the first protrusion 315p1 and the second protrusion 315p2 can contact the hollow member 502 of the coupling portion 500, and can be pressed (or pushed) by the pressing (or pushing) of the hollow member 502, and therefore, when the first protrusion 315p1 and the second protrusion 315p2 contact the lateral surface of the hollow member 502, the first protrusion wall 315a and the second protrusion wall 315b can be elastically strained (or deformed) in directions opposite to each other (or in directions away from each other) (horizontal arrow direction AR2). The first protrusion 315p1 and the second protrusion 315p2 can be respectively accommodated (or inserted) into the first hole 500h1 and the second hole 500h2 of the hollow member 502 by the elastic restoring force of each of the elastically strained (or deformed) first protruding wall 315a and the second protruding wall 315b, and thus, the coupling portion 500 can be fastened to the protrusion 315.

[0245] According to an embodiment of the present disclosure, in the process of pressing the coupling portion 500 into the opening hole 315o of the protrusion 315, a portion 502a and another portion 502b of the hollow member 502 can be elastically strained (or deformed) in directions relative to each other (or in directions toward each other) (horizontal arrow direction AR3) by pressing (or pushing) the first protrusion 315p1 and the second protrusion 315p2, but the embodiment of the present disclosure is not limited to this.

[0246] Based on the sound device 30 according to the embodiment of the present disclosure, since the coupling portion 500 can be detachably coupled or fastened to the protrusion 315, the shell 310 can be easily equipped at (or installed on) the vehicle interior material 130 (or the installation object), and the sound device 30 can be easily separated or detached from the vehicle interior material 130 (or the installation object).

[0247] Fig. 9 A sound device according to another embodiment of the present disclosure is shown. Fig. 9 By changing the above reference Figures 3 to 8 Therefore, in the following description, the vibration device will be described in detail, and other elements may be the same as those described above. Figures 3 to 8 The elements described are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 8 In the description of the vibration device, the description of other elements besides the description of the vibration device may be included in Fig. 9 in the description.

[0248] Reference Fig. 9, the sound device 30 according to another embodiment of the present disclosure may include vibration devices 333 and 335 including one or more vibration generators. For example, the vibration devices 333 and 335 may include one or more vibration generators 333A, 333B, 335A, and 335B. For example, the vibration devices 333 and 335 may include a first vibration device 333 and a second vibration device 335.

[0249] The first vibration device 333 of the vibration devices 333 and 335 may include one or more vibration generators 333A and 333B. The first vibration device 333 may include a first vibration generator 333A and a second vibration generator 333B. For example, the first vibration generator 333A may be stacked on the second vibration generator 333B.

[0250] The second vibration device 335 of the vibration devices 333 and 335 may include one or more vibration generators 335A and 335B. The second vibration device 335 may include a first vibration generator 335A and a second vibration generator 335B. For example, the first vibration generator 335A may be stacked on the second vibration generator 335B. Fig. 9 Vibration devices 333 and 335 are depicted as each including one or more vibration generators.

[0251] According to another embodiment of the present disclosure, the vibration devices 333 and 335, each including one or more vibration generators, may be configured at the first surface or the second surface of the vibration member 331. For example, one of the first vibration device 333 and the second vibration device 335, each including one or more vibration generators, may be configured only at the first surface of the vibration member 331. For example, one of the first vibration device 333 and the second vibration device 335, each including one or more vibration generators, may be configured at the first space 313a. For example, the first vibration device 333 including one or more vibration generators 333A and 333B may be configured at the first surface of the vibration member 331, and the second vibration device 335 including one or more vibration generators 335A and 335B may be omitted.

[0252] According to another embodiment of the present disclosure, one of the first vibration device 333 and the second vibration device 335, each including one or more vibration generators, may be configured only at the second surface of the vibration member 331. For example, one of the first vibration device 333 and the second vibration device 335, each including one or more vibration generators, may be configured at the second space 313b. For example, the second vibration device 335 including one or more vibration generators 335A and 335B may be configured at the second surface of the vibration member 331, and the first vibration device 333 including one or more vibration generators 333A and 333B may be omitted.

[0253] The vibration devices 333 and 335 according to another embodiment of the present disclosure may each include one or more vibration generators that are stacked (or piled or overlapped) to vibrate in the same direction, and thus, the displacement amount or amplitude displacement may be maximized or increased, thereby maximizing or increasing the displacement amount (or bending force or driving force) or amplitude displacement of the vibration member 331.

[0254] Fig.10 A sound device according to another embodiment of the present disclosure is shown. Fig.11 According to another embodiment of the present disclosure Fig.10 An exploded perspective view of the sound device shown. Fig.10 and Fig.11 As shown in the above reference Figures 3 to 8 Therefore, in the following description, the connecting member will be described in detail, and other elements can be described with reference to the above. Figures 3 to 8 The elements described in the foregoing are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 8 The description of the sound device can be included in Fig.10 and Fig.11 in the description.

[0255] Reference Fig.10 and Fig.11 , the sound device 30 according to another embodiment of the present disclosure may include a connection member 350 .

[0256] The connecting member 350 may be disposed at the rear surface 311r of the housing 310. The connecting member 350 may be disposed between the housing 310 and the vehicle interior material 130. For example, the connecting member 350 may be disposed between the first housing 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected or coupled to the housing 310 via the connecting member 350. For example, the vehicle interior material 130 may be connected or coupled to the rear surface 311r of the first housing 311 via the connecting member 350. Therefore, the housing 310 may be connected or coupled to the vehicle interior material 130 via the connecting member 350. For example, the connecting member 350 may be disposed or configured between the vehicle interior material 130 and the vehicle interior material 130. Figure 1 or Figure 2 The connecting member 350 may be a first connecting member, a first intermediate member, a first buffer member, or a first cushion member, but the embodiments of the present disclosure are not limited thereto.

[0257] The connection member 350 may be configured to transmit the vibration of the first housing 311 to the vehicle interior material 130 based on the vibration of the sound generation module 330. The connection member 350 may be configured to transmit the vibration of the first housing 311 caused by the sound (or sound wave) generated in the internal space 313 of the housing 310 based on the vibration of the sound generation module 330 to the vehicle interior material 130. Therefore, the vehicle interior material 130 may vibrate based on the vibration transmitted through the connection member 350 to generate (or output) sound.

[0258] The connecting member 350 can be configured as a rigid material (or hard material). The connecting member 350 can have high elasticity (or Young's modulus) and can include a material with high tensile strength. For example, the connecting member 350 can include rubber, but the embodiments of the present disclosure are not limited thereto. For example, the rubber can be ethylene propylene rubber or polyurethane rubber, but the embodiments of the present disclosure are not limited thereto. For example, the ethylene propylene rubber can be ethylene propylene diene monomer (EPDM), but the embodiments of the present disclosure are not limited thereto. For example, the hardness of EPDM can be 40 to 90, but the embodiments of the present disclosure are not limited thereto. For example, the tensile strength of EPDM can be 50kg / cm 2 Up to 200kg / cm 2 , but the implementation of the present disclosure is not limited thereto.

[0259] According to an embodiment of the present disclosure, the connecting member 350 is configured as a relatively rigid material (or a hard material), and thus the vibration of the first shell 311 can be transmitted to the vehicle interior material 130 based on the vibration of the vibration device. Therefore, the vehicle interior material 130 can vibrate based on the vibration transmitted through the connecting member 350 to generate sound. For example, when the connecting member 350 is configured as a relatively rigid material (or a hard material), the vehicle interior material 130 connected to the connecting member 350 can be a vibration plate for generating (or outputting) sound. For example, when the connecting member 350 is configured as a relatively rigid material (or a hard material), the vibration of the first shell 311 can more effectively transmit the vehicle interior material 130.

[0260] According to an embodiment of the present disclosure, the connection member 350 may transfer heat generated when the sound generation module 330 vibrates to the vehicle interior material 130 , thereby dissipating the heat generated when the sound generation module 330 vibrates.

[0261] According to an embodiment of the present disclosure, the connecting member 350 may further include a hole 350o. For example, the connecting member 350 may further include a hole 350o connected to the opening hole 315o of the protrusion 315 in the housing 310 or the first housing 311. The hole 350o may be arranged to correspond to (or overlap) the opening hole 315o. The hole 350o may have the same shape as the protrusion 315 of the first housing 311, and may have a larger size than the protrusion 315 of the first housing 311, but the embodiment of the present disclosure is not limited thereto. Therefore, the sound (or sound wave) generated in the internal space 313 based on the vibration of the sound generating module 330 may be output to the inner space of the vehicle through (or through) the opening hole 315o and the hole 350o. For example, the hole 350o may be a through hole, a second through hole, an opening, an opening hole, a slit, a slot, a connecting hole or an intermediate hole, but the embodiment of the present disclosure is not limited thereto.

[0262] According to another embodiment of the present disclosure, the vibration device 300 can be used as described above. Fig. 9 The vibration device described above is replaced by the vibration device described above, and therefore, a repeated description thereof may be omitted.

[0263] The protrusion 315 of the housing 310 may pass through the hole 350o of the connection member 350 and may be received (or inserted) into the hole 137 of the vehicle interior material 130. The open hole 315o of the protrusion 315 may be exposed to the inner surface 130s of the vehicle interior material 130.

[0264] The coupling portion 500 may be inserted into the opening hole 315o of the protrusion 315 exposed to the inner surface 130s of the vehicle interior material 130, and may be detachably fastened to the protrusion 315. The method of fastening the coupling portion 500 and the protrusion 315 is the same as described above with reference to Figure 7 and Figure 8 The hook fastening schemes described are substantially the same, and therefore, repeated descriptions thereof are omitted.

[0265] The sound device 30 according to another embodiment of the present disclosure may have the same Figures 3 to 8 The same effect as described above for the sound device. Based on the sound device 30 according to another embodiment of the present disclosure, the connecting member 350 is disposed (or inserted) between the shell 310 and the vehicle interior material 130, and therefore, no vibration sound (or chatter) may occur between the shell 310 and the vehicle interior material 130, thereby improving the sound characteristics and / or sound pressure level characteristics of the sound device 30. In addition, based on the sound device 30 according to another embodiment of the present disclosure, the heat generated when the sound generating module 330 vibrates can be dissipated to the vehicle interior material 130 through the connecting member 350, thereby preventing the performance of the vibration device 337 from being reduced due to heat.

[0266] Fig.12 A sound device according to another embodiment of the present disclosure is shown. Fig.12 As shown in the above reference Figures 3 to 8 Therefore, in the following description, the soft component will be described in detail, and other elements can be described with reference to the above. Figures 3 to 8 The elements described in the foregoing are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 8 The description of the sound device can be included in Fig.12 in the description.

[0267] Reference Fig.11 and Fig.12 , the sound device 30 according to another embodiment of the present disclosure may include a soft component 360 .

[0268] The soft member 360 may be disposed at the rear surface 311r of the housing 310. The soft member 360 may be disposed between the housing 310 and the vehicle interior material 130. For example, the soft member 360 may be disposed between the first housing 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected or coupled to the housing 310 via the soft member 360. For example, the vehicle interior material 130 may be connected or coupled to the rear surface 311r of the first housing 311 via the soft member 360. Therefore, the housing 310 may be connected or coupled to the vehicle interior material 130 via the soft member 360. For example, the soft member 360 may be a second intermediate member, a second buffer member, or a second cushion member, but embodiments of the present disclosure are not limited thereto.

[0269] According to an embodiment of the present disclosure, the soft component 360 can be Fig.10 The soft member 360 may be configured with a material having a different elasticity (or Young's modulus) from the connecting member 350 described above. The elasticity (or Young's modulus) of the soft member 360 may be configured with a material having a different elasticity from the connecting member 350. For example, the soft member 360 may be configured with a material having a low elasticity. The soft member 360 may be configured with a relatively smooth material (or a soft material). Therefore, the soft member 360 may absorb external impacts, and therefore, damage to the sound device 30 may be prevented, and the durability and reliability of the sound device 30 may be enhanced.

[0270] The vehicle interior material 130 according to another embodiment of the present disclosure may include one or more curved portions (or tortuous portions or uneven portions) 136. The soft member 360 may be disposed between the housing 310 and the one or more curved portions 136 of the vehicle interior material 130. The soft member 360 may be disposed between the first housing 311 and the one or more curved portions 136 of the vehicle interior material 130. For example, the sound device 30 or the first housing 311 may be connected or coupled to the one or more curved portions 136 of the vehicle interior material 130 through the soft member 360. Therefore, the soft member 360 may be filled in the one or more curved portions 136 of the vehicle interior material 130, or may cover the one or more curved portions 136 of the vehicle interior material 130 and may absorb external impacts, thereby protecting the sound device 30.

[0271] According to an embodiment of the present disclosure, the soft member 360 may contact or directly contact the vehicle interior material 130 including one or more curved portions 136 without a separate adhesive member or a separate intermediate member (or medium). The vibration generated by the sound generation module 330 may be transmitted to the entire vibration area of ​​the vehicle interior material 130 including one or more curved portions 136 and the planar portion through the soft member 360. Therefore, a sound may be generated (or output) based on the vibration of the entire vibration area of ​​the vehicle interior material 130, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the vocal cords including the low-pitched vocal cords generated by the sound generation module 330.

[0272] According to an embodiment of the present disclosure, the soft member 360 may include a relatively smooth material (or a soft material or a ductile material) for connection (or coupling) with the vehicle interior material 130 including one or more curved portions 136 and a planar portion. For example, when the one or more curved portions 136 are included in the vibration region of the vehicle interior material 130, the soft member 360 may include a relatively smooth material. For example, the soft member 360 configured with a relatively smooth material may be a ductile member, a porous member, a protective member, a buffer member, etc., but the embodiments of the present disclosure are not limited thereto.

[0273] According to the soft component 360 of the embodiment of the present disclosure, it can be ethylene propylene rubber or polyurethane rubber, but the embodiment of the present disclosure is not limited thereto. For example, the ethylene propylene rubber can be ethylene propylene diene monomer (EPDM), and as the foaming rate changes in EPDM, the ethylene propylene rubber can be configured as EPDM with low elasticity, but the embodiment of the present disclosure is not limited thereto. For example, according to the soft component 360 of another embodiment of the present disclosure, it can be configured as a single-sided tape, a single-sided sponge tape, a single-sided porous tape, a single-sided buffer tape, a double-sided tape, a double-sided sponge tape, a double-sided porous tape or a double-sided buffer tape, etc. configured with a relatively smooth material, but the embodiment of the present disclosure is not limited thereto.

[0274] According to an embodiment of the present disclosure, the soft component 360 may further include a hole 360o. For example, the soft component 360 may further include a hole 360o of an opening hole 315o of a protrusion 315 connected to the housing 310 or the first housing 311. The hole 360o may be arranged to correspond to (or overlap) the opening hole 315o. The hole 360o may have the same shape as the protrusion 315 of the first housing 311, and may have a larger size than the protrusion 315 of the first housing 311, but the embodiment of the present disclosure is not limited thereto. For example, the hole 360o may be a through hole, a third through hole, an opening, an opening hole, a slit, a groove, a connecting hole or an intermediate hole, but the embodiment of the present disclosure is not limited thereto.

[0275] According to an embodiment of the present disclosure, the sound generated based on the vibration of the sound generating module 330 can be output to the inner space of the vehicle through the opening hole 315o of the protrusion 315 and the hollow portion 501 of the coupling portion 500. In addition, the first shell 311 of the shell 310 can vibrate by the sound (or sound wave) generated in the inner space 313 based on the vibration of the sound generating module 330, and the vibration of the first shell 311 makes the vehicle interior material 130 including one or more curved portions 136 and a flat portion vibrate through the soft member 360, and the sound generated based on the vibration of the vehicle interior material 130 can be output to the inner space of the vehicle.

[0276] According to another embodiment of the present disclosure, the vibration device 300 can be used as described above. Fig. 9 The vibration device described above is replaced by the vibration device described above, and therefore, a repeated description thereof may be omitted.

[0277] The protrusion 315 of the housing 310 may pass through the hole 360o of the soft member 360 and may be received (or inserted) into the hole 137 of the vehicle interior material 130. The open hole 315o of the protrusion 315 may be exposed to the inner surface 130s of the vehicle interior material 130.

[0278] The coupling portion 500 may be inserted into the opening hole 315o of the protrusion 315 exposed to the inner surface 130s of the vehicle interior material 130, and may be detachably fastened to the protrusion 315. The method of fastening the coupling portion 500 and the protrusion 315 is the same as described above with reference to Figure 7 and Figure 8 The hook fastening schemes described are substantially the same, and therefore, repeated descriptions thereof are omitted.

[0279] The sound device 30 according to another embodiment of the present disclosure may have the same Figures 3 to 8 The same effect as described above for the sound device. Based on the sound device 30 according to another embodiment of the present disclosure, the soft component 360 is arranged (or inserted) between the shell 310 and the vehicle interior material 130, and therefore, no vibration sound (or chatter) may occur between the shell 310 and the vehicle interior material 130, thereby improving the sound characteristics and / or sound pressure level characteristics of the sound device 30. In the sound device 30 according to another embodiment of the present disclosure, since the external impact applied to the shell 310 can be absorbed by the soft component 360, and therefore, the sound device 30 can be protected from the external impact.

[0280] According to another embodiment of the present disclosure, the soft component 360 can be the same as that in the above reference. Fig.11 For example, the sound device 30 according to another embodiment of the present disclosure may further include: Fig.13 The connecting member 350 and the soft member 360 are shown in FIG.

[0281] Reference Fig.13 In the sound device 30 according to another embodiment of the present disclosure, the connection member 350 may be disposed or inserted between the housing 310 and the vehicle interior material 130. For example, the connection member 350 may be disposed or inserted between the first housing 311 and the vehicle interior material 130. The connection member 350 may be configured as a rigid material (or a hard material). Fig.11 The described connection members 350 are substantially the same, and thus, a repeated description thereof may be omitted.

[0282] The soft member 360 may be disposed or interposed between the vehicle interior material 130 and the connecting member 350. For example, the soft member 360 may be configured as a relatively smooth material (or a soft material). Fig.12 The described soft components 360 are substantially the same, and thus, repeated descriptions thereof may be omitted.

[0283] According to another embodiment of the present disclosure, Fig.13 The vibration device 300 shown in FIG. Fig. 9 The vibration device described above is replaced by the vibration device described above, and therefore, a repeated description thereof may be omitted.

[0284] The protrusion 315 of the housing 310 may pass through the hole 360o of the soft member 360 and the hole 350o of the connecting member 350, and may be received (or inserted) into the hole 137 of the vehicle interior material 130. The opening hole 315o of the protrusion 315 may be exposed to the inner surface 130s of the vehicle interior material 130.

[0285] The coupling portion 500 may be inserted into the opening hole 315o of the protrusion 315 exposed to the inner surface 130s of the vehicle interior material 130, and may be detachably fastened to the protrusion 315. The method of fastening the coupling portion 500 and the protrusion 315 is the same as described above with reference to Figure 7 and Figure 8 The hook fastening schemes described are substantially the same, and therefore, repeated descriptions thereof are omitted.

[0286] The sound device 30 according to another embodiment of the present disclosure may have the same Figures 3 to 8 The same effects as those of the sound device described above, and may additionally have the same effects as those of the sound device described above Figures 10 to 12 The same effect is described for the sound device.

[0287] Fig.14 A sound device according to another embodiment of the present disclosure is shown. Fig.15According to another embodiment of the present disclosure Fig.14 An exploded perspective view of the sound device shown. Fig.14 and Fig.15 As shown in the above reference Figures 3 to 8 Therefore, in the following description, the connecting member will be described in detail, and other elements can be described with reference to the above. Figures 3 to 8 The elements described above are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 8 The description can be included in Fig.14 and Fig.15 in the description.

[0288] Reference Fig.14 and Fig.15 In the sound device 30 according to another embodiment of the present disclosure, a connection member 380 may be provided on the rear surface 311r of the housing 310. The connection member 380 may be provided between the housing 310 and the vehicle interior material 130. For example, the connection member 380 may be provided between the first housing 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected or coupled to the housing 310 through the connection member 380. For example, the vehicle interior material 130 may be connected or coupled to the rear surface 311r of the first housing 311 through the connection member 380. Therefore, the housing 310 may be connected or coupled to the vehicle interior material 130 through the connection member 380. For example, the connection member 380 may be a second connection member, a third intermediate member, a third buffer member, or a third cushion member, but embodiments of the present disclosure are not limited thereto.

[0289] The connection member 380 may be configured with a material different from that of the coupling member 320 of the sound device 30. For example, the connection member 380 may be configured with a material different from that of the first coupling member 321 of the coupling member 320. For example, the connection member 380 may be configured with a material having an adhesive force different from that of the first coupling member 321. Since the connection member 380 may be configured with a material having an adhesive force different from that of the first coupling member 321, the separation or detachment process (or rework) of the connection member 380 from the vehicle interior material 130 may be easily performed in the separation or detachment process (or rework) of the housing 310 (or the sound device 30) attached to the vehicle interior material 130. Therefore, the process of attaching or mounting the housing 310 (or the sound device 30) on the vehicle interior material 130, or the process of separating or attaching / detaching the housing 310 (or the sound device 30) from the vehicle interior material 130 may be easily performed.

[0290] The connection member 380 may be coupled (or attached) to the rear surface 311r of the housing 310 and may contact (or surface contact) the outer surface of the vehicle interior material 130, but the embodiments of the present disclosure are not limited thereto. For example, in the case where the connection member 380 is coupled (or attached) to the rear surface 311r of the housing 310 and simply contacts (or surface contact) the outer surface of the vehicle interior material 130, in the process of separating and detaching (or reworking) the sound device 30 (or the housing 310) from the vehicle interior material 130, the process of separating or detaching (or reworking) the connection member 380 from the vehicle interior material 130 may be easily performed without damaging the sound device 30 (or the housing 310). For example, the outer surface of the vehicle interior material 130 may be a second surface, an outer surface (or an outdoor surface), a front surface, or an upper surface.

[0291] According to another embodiment of the present disclosure, the connecting member 380 can be configured as a single-sided tape, a single-sided adhesive tape, a single-sided foam tape, a single-sided adhesive foam tape, a single-sided pad, a single-sided foam pad, a single-sided adhesive foam pad, a single-sided pad member, a single-sided buffer member, a single-sided buffer pad or a single-sided buffer tape, etc., but the embodiments of the present disclosure are not limited thereto. For example, the connecting member 380 can be rubber, etc., but the embodiments of the present disclosure are not limited thereto. For example, the rubber can be ethylene propylene diene rubber (or ethylene propylene diene M-grade rubber), ethylene propylene rubber or polyurethane rubber, but the embodiments of the present disclosure are not limited thereto. For example, the ethylene propylene rubber can be ethylene propylene diene monomer (EPDM), but the embodiments of the present disclosure are not limited thereto. For example, the hardness of EPDM can be 40 to 90, but the embodiments of the present disclosure are not limited thereto. For example, the tensile strength of EPDM can be 50kg / cm 2 Up to 200kg / cm 2 , but the embodiments of the present disclosure are not limited thereto. For example, the connecting member 380 may be configured as highly elastic rubber, but the embodiments of the present disclosure are not limited thereto. According to the embodiments of the present disclosure, because the connecting member 380 is configured as rubber or the like, when the vibration of the housing 310 or the first housing 311 is transmitted to the vehicle interior material 130, the vibration loss can be prevented or minimized, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords can be further improved.

[0292] According to an embodiment of the present disclosure, the connecting member 380 may further include a hole 380o. For example, the connecting member 380 may further include a hole 380o connected to the opening hole 315o of the protrusion 315. The hole 380o may be arranged to correspond to (or overlap) the opening hole 315o. The hole 380o may have the same shape as the protrusion 315 of the first shell 311, and may have a larger size than the protrusion 315 of the first shell 311, but the embodiment of the present disclosure is not limited thereto. For example, the hole 380o may be a through hole, a fourth through hole, an opening, an opening hole, a slit, a groove, a connecting hole, or an intermediate hole, but the embodiment of the present disclosure is not limited thereto.

[0293] The thickness T1 of the connection member 380 may be different from the thickness of at least one of the first coupling member 321 and the second coupling member 322. For example, the thickness T1 of the connection member 380 may be thicker than the thickness of at least one of the first coupling member 321 and the second coupling member 322. The thickness T1 of the connection member 380 may be 0.5 mm or more, but embodiments of the present disclosure are not limited thereto. For example, the thickness T1 of the connection member 380 may be 0.5 mm to 3 mm, but embodiments of the present disclosure are not limited thereto.

[0294] According to another embodiment of the present disclosure, the connecting member 380 may have a compressive force (or a shrinkage force) and an elastic restoring force, and may be shrunk or compressed by coupling between the coupling portion 500 and the first housing 311. The length (or thickness) of the connecting member 380 may be less than or equal to the length (or thickness) of the vehicle interior material 130. For example, the length (or thickness) of the connecting member 380 may be less than or equal to the length (or thickness) of the first housing 311.

[0295] like Fig.15 As shown, the connecting member 380 may have an initial thickness T1′ before being compressed (or contracted), and may be compressed (or contracted) to have a thickness T1′ based on the pressure applied from the housing 310 through the coupling (or connection) between the coupling portion 500 and the housing 310. Fig.14 The deformation thickness (or compression thickness) T1 shown. For example, when the housing 310 (or the sound device 30) is connected to the vehicle interior material 130 through the coupling portion 500, or when the assembly and / or rework is completed, the thickness of the connecting member 380 can be compressed from the initial thickness T1' to the compression thickness T1, and thus, the vibration of the housing 310 can be effectively transmitted to the vehicle interior material 130. For example, when the housing 310 (or the sound device 30) is separated (or detached) from the vehicle interior material 130 by the detachment of the coupling portion 500, the connecting member 380 can be restored from the deformation thickness (or compression thickness) T1 to the initial thickness T1' by the elastic restoring force.

[0296] The protrusion 315 of the housing 310 may pass through the hole 380o of the connection member 380 and may be received (or inserted) into the hole 137 of the vehicle interior material 130. The open hole 315o of the protrusion 315 may be exposed to the inner surface 130s of the vehicle interior material 130.

[0297] The coupling portion 500 may be inserted into the opening hole 315o of the protrusion 315 exposed to the inner surface 130s of the vehicle interior material 130, and may be detachably fastened to the protrusion 315. The method of fastening the coupling portion 500 and the protrusion 315 is the same as described above with reference to Figure 7 and Figure 8 The hook fastening schemes described are substantially the same, and therefore, repeated descriptions thereof are omitted.

[0298] The sound device 30 according to another embodiment of the present disclosure may have the same Figures 3 to 8 The same effects as those of the sound device described above, and may additionally have the same effects as those of the sound device described above Figures 10 to 12 The same effect is described for the sound device.

[0299] Fig.16 A sound device according to another embodiment of the present disclosure is shown. Fig.17 is a plan view illustrating a vibration member and a vibration device according to another embodiment of the present disclosure. Fig.16 and Fig.17 As shown in the above reference Figures 1 to 15 The sound generating module 330 (or the sound device 30) described above is additionally provided with at least one hole. Therefore, in the following description, at least one hole will be described in detail, and other elements may be the same as those described above. Figures 1 to 15 The other elements described in the above are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or briefly given below. Figures 1 to 15 The description can be included in Fig.16 and Fig.17 in the description.

[0300] Reference Fig.16 and Fig.17 , the sound device 30 according to another embodiment of the present disclosure may further include one or more holes 331o.

[0301] One or more holes 331o may be configured at the sound generating module 330. One or more holes 331o may be configured at the vibration member 331 of the sound generating module 330. The vibration member 331 may include one or more holes 331o. The vibration member 331 may include one or more holes 331o configured at the periphery of the vibration devices 333 and 335.

[0302] One or more holes 331o may be configured to pass through the vibration member 331. One or more holes 331o may be configured to pass through the vibration member 331 in the thickness direction Z of the vibration member 331. For example, one or more holes 331o may be formed to vertically pass through the vibration member 331 in the thickness direction Z of the vibration member 331.

[0303] One or more holes 331o may be configured to adjust the air flow in the internal space 313 of the housing 310. For example, one or more holes 331o may perform control so that air flows in the internal space 313 of the housing 310 that is spatially separated from each other by the vibration member 331. For example, one or more holes 331o may be configured to adjust the flow of air between the first space 313a and the second space 313b that are spatially separated from each other by the vibration member 331 in the internal space 313 of the housing 310. For example, one or more holes 331o may be a through hole, a fifth through hole, a first air hole, a first vent hole, a first air flow hole, a first duct hole, a first connection hole, a first communication hole, or a first space connection portion, but embodiments of the disclosure are not limited thereto.

[0304] One or more holes 331 o according to an embodiment of the present disclosure may be configured in a polygonal shape, such as a circular shape, an oval shape, or a quadrilateral shape, but the embodiment of the present disclosure is not limited thereto.

[0305] One or more holes 331o may be configured to reduce the air pressure of the internal space 313 of the housing 310. For example, one or more holes 331o may be configured to connect the first space 313a and the second space 313b separated from each other in space by the vibration member 331 in the internal space 313 of the housing 310. For example, the first space 313a and the second space 313b of the internal space 313 in the housing 310 may be connected (communicated) to each other through one or more holes 331o. For example, one or more holes 331o may be configured to reduce the air pressure of the first space 313a of the first housing 311 or the first space 313a disposed between the vibration member 331 and the first housing 311. Therefore, the frequency band (reproduction frequency band) of the low-pitched vocal band can be expanded, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band can be improved. In addition, the sound generating module 330 can vibrate more stably through one or more holes 331o in the vibration member 331, and therefore, the sound characteristics and / or sound pressure level characteristics can be further improved.

[0306] According to an embodiment of the present disclosure, one or more holes 331o may be disposed adjacent to the vibration devices 333 and 335. For example, one or more holes 331o may be disposed at the periphery of the vibration devices 333 and 335. For example, one or more holes 331o may be disposed adjacent to the lateral surfaces of the vibration devices 333 and 335. For example, the distance between the one or more holes 331o and the vibration devices 333 and 335 may be less than the distance between the one or more holes 331o and the side wall (or lateral surface) of the housing 310. For example, when the one or more holes 331o are disposed at a position away from the vibration devices 333 and 335, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords may be further improved.

[0307] According to an embodiment of the present disclosure, one or more holes 331o may be configured at the vibration member 331 adjacent to the vibration devices 333 and 335, wherein the vibration devices 333 and 335 are between the one or more holes 331o and the vibration member 331. For example, the vibration member 331 may include a first peripheral area adjacent to the first lateral surface of the vibration devices 333 and 335, and a second peripheral area opposite to the second side of each of the vibration devices 333 and 335 opposite to the first side. For example, with respect to the first direction X, the vibration member 331 may include a first peripheral area, a vibration area, and a second peripheral area. For example, in the vibration member 331, each of the first peripheral area and the second peripheral area may be a hole area or a non-arrangement area of ​​the vibration devices 333 and 335, and the vibration area may be an arrangement area (or setting area) of the vibration devices 333 and 335. For example, each of the first peripheral area and the second peripheral area may not overlap with the vibration devices 333 and 335, and the vibration area may overlap with the vibration devices 333 and 335. For example, one or more holes 331o can be configured in each of the first peripheral area and the second peripheral area of ​​the vibration member 331 to have a symmetrical structure (or a horizontally symmetrical structure or a left-right symmetrical structure) or an asymmetrical structure (or a horizontally asymmetrical structure or a left-right asymmetrical structure) relative to the vibration devices 333 and 335.

[0308] According to an embodiment of the present disclosure, the vibration devices 333 and 335 may each include a long side and a short side. The distance (or separation distance or shortest distance) between the one or more holes 331o and the short sides of the vibration devices 333 and 335 may represent a ratio of the length of the short sides of the vibration devices 333 and 335. According to an embodiment of the present disclosure, the distance between the one or more holes 331o and the vibration devices 333 and 335 may be 60% or less of the length of the short sides of the vibration devices 333 and 335.

[0309] One or more holes 331o may be provided closer to the vibration devices 333 and 335 than the coupling member 320. The coupling member 320 may include a first coupling member 321 and a second coupling member 322. For example, one or more holes 331o may be provided closer to the vibration devices 333 and 335 than the first coupling member 321 and the second coupling member 322. Therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords may be enhanced.

[0310] According to an embodiment of the present disclosure, one or more holes 331o may not overlap with the opening 310o. For example, one or more holes 331o may be arranged to be spaced apart from the opening 310o. Therefore, the sound generated by the vibration (or drive) of each vibration device in the second space 313b based on the vibration devices 333 and 335 can be output to the first space 313a through the one or more holes 331o, and the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band can be enhanced.

[0311] According to an embodiment of the present disclosure, the sound generated based on the vibration (or drive) of each of the vibration devices 333 and 335 at the rear surface of the vibration member 331 or the second space 313b of the shell 310 can be output to the first space 313a through at least one hole 331o, and can be output (or radiated) through the opening hole 315o of the protrusion 315 of the first shell 311 and the hollow portion 501 of the coupling portion 500, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords can be further enhanced.

[0312] Fig.18 A sound device according to another embodiment of the present disclosure is shown. Fig.18 Shown by modifying the above reference Figures 3 to 13 Therefore, in the following description, the housing 310 will be described in detail, and other elements may be the same as those described above. Figures 3 to 13 The elements described in the description are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 13 In the description of the housing 310, the description of other elements other than the description of the housing 310 may be included in Fig.18 in the description.

[0313] Reference Fig.18 In the sound device 30 according to another embodiment of the present disclosure, the housing 310 may include a first housing 311. For example, in the above reference Figures 1 to 13 In the depicted housing 310 , the second housing 312 may be removed (or omitted), and thus, the housing 310 may be configured with only the first housing 311 .

[0314] The housing 310 or the first housing 311 may be connected to the sound generating module 330, with the internal space 313 between the housing 310 or the first housing 311 and the sound generating module 330. The housing 310 or the first housing 311 may be connected to a rear peripheral portion of the vibration member 331, with the internal space 313 between the housing 310 or the first housing 311 and the rear peripheral portion of the vibration member 331.

[0315] According to another embodiment of the present disclosure, the vibration member 331 may be configured to cover the inner space 313 of the first housing 311. For example, the vibration member 331 may be configured to cover a portion of the inner space 313 of the first housing 311. The vibration member 331 may be configured to cover the first space 313a of the first housing 311. For example, the vibration member 331 may be configured to cover a portion of the first space 313a of the first housing 311.

[0316] In the case where the housing 310 is provided with only the first housing 311, the sound characteristics and / or sound pressure level characteristics of the sound device 30 can be further enhanced compared to the case where the housing 310 is provided with the first housing 311 and the second housing 312. For example, in the case where the housing 310 is provided with only the first housing 311, the sound characteristics and / or sound pressure level characteristics of the mid-low pitch vocal band, for example, of 2 kHz or less can be further enhanced, and the sound reproduction frequency band can be further expanded.

[0317] The sound device 30 according to another embodiment of the present disclosure may further include a coupling member 320 or a first coupling member 321. The first coupling member 321 may be between the vibration member 331 and the first housing 311. The description of the first coupling member 321 may be the same as Figure 3 The descriptions of the present invention are substantially the same, and thus, the same reference numerals refer to the same elements, and a repeated description thereof is omitted or will be briefly given below.

[0318] The sound device 30 according to another embodiment of the present disclosure may further include a connection member 380 .

[0319] A connection member 380 according to another embodiment of the present disclosure may be disposed between the first housing 311 and the vehicle interior material 130. For example, the connection member 380 may be configured with a material different from that of the coupling member 320 or the first coupling member 321. For example, the connection member 380 may include a material having a high elasticity (or Young's modulus) compared to the coupling member 320 or the first coupling member 321. For example, the connection member 380 may be configured with a material having an adhesive force different from that of the coupling member 320 or the first coupling member 321.

[0320] The connection member 380 according to the embodiment of the present disclosure may be the same as that described above. Fig.14 and Fig.15 The connection member 380 described above is substantially the same, and therefore, a repeated description thereof may be omitted. Fig.14 and Fig.15 The description of the connection member 380 may be included in Fig.18 In the description of the connecting member 380 shown in FIG.

[0321] According to another embodiment of the present disclosure, because the sound device 30 is configured to include a first shell 311 and a connecting member 380, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the mid-pitched vocal band can be further enhanced, the sound reproduction frequency band can be expanded, and the attachment or detachment process of the shell 310 (or the sound module 30) attached to the vehicle interior material 130 can be easily performed.

[0322] According to another embodiment of the present disclosure, the connecting member 380 is configured with a material such as rubber between the vehicle interior material 130 and the shell 310 (or the first shell 311 or the sound device 30), and therefore, the vibration of the sound generating module 330 and / or the shell 310 (or the first shell 311 or the sound device 30) can be transmitted to the vehicle interior material 130 without loss, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the sound device 30.

[0323] The sound device 30 according to another embodiment of the present disclosure may further include the Figures 10 to 13 One or more of the connecting member 350 or the soft member 360 described, rather than Fig.18 The connecting member 350 is shown in FIG. Figures 10 to 13 The description of one or more of the connecting member 350 or the soft member 360 shown in FIG. 3 may be included in Fig.18 in the description.

[0324] Fig.19 A sound device according to another embodiment of the present disclosure is shown. Fig.19 As shown in the above reference Fig.18 In the embodiment described above, at least one or more holes are additionally configured in the sound device 30. Therefore, in the following description, at least one or more holes will be described in detail, and other elements may be the same as those described above. Fig.18 The elements described above are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig.10 The description of the sound device 30 may be included in Fig.19 in the description.

[0325] Reference Fig.19 , the sound device 30 according to another embodiment of the present disclosure may further include one or more holes 331o.

[0326] One or more holes 331o may be configured at the vibration member 331. The vibration member 331 may include one or more holes 331o configured at the periphery of the vibration devices 333 and 335. The one or more holes 331o may be configured to adjust the flow of air between the external space of the housing 310 and the internal space 313. For example, the one or more holes 331o may perform control so that air flows in the internal space 313 of the inner space provided between the housing 310 (or the first housing 311) and the vibration member 331.

[0327] The description of one or more holes 331o can be referred to above. Fig.16 and Fig.17 The descriptions described are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig.16 and 17 The description of one or more holes 331o may be included in Fig.19 in the description.

[0328] Because the sound device 30 according to another embodiment of the present disclosure further includes one or more holes 331o configured at the vibration member 331, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be further enhanced, and the sound reproduction frequency band can be expanded.

[0329] Fig. 20 A sound device according to another embodiment of the present disclosure is shown. Fig. 20 As shown in the above reference Fig.18 The embodiment of the sound device 30 described above is additionally provided with a protective member. Therefore, in the following description, the protective member will be described in detail, and other elements may be the same as those described above. Fig.18 The elements described above are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig.18 The description of the sound device 30 may be included in Fig. 20 in the description.

[0330] Reference Fig. 20 , the sound device 30 according to another embodiment of the present disclosure may further include a protection member 410 .

[0331] The protection member 410 may be disposed at the sound generating module 330. For example, the protection member 410 may cover the sound generating module 330. For example, the protection member 410 may be disposed at the second vibration device 335. For example, the protection member 410 may be disposed to cover the second vibration device 335.

[0332] The protective member 410 according to an embodiment of the present disclosure may include rubber or sponge, etc., but the embodiment of the present disclosure is not limited thereto. For example, the rubber may be ethylene propylene diene rubber (or ethylene propylene diene M-grade rubber), ethylene propylene rubber, or polyurethane rubber, but the embodiment of the present disclosure is not limited thereto. For example, the protective member 410 may include a rubber material, or may be configured with ethylene propylene diene rubber, ethylene propylene rubber, or polyurethane rubber. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiment of the present disclosure is not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiment of the present disclosure is not limited thereto. For example, the tensile strength of EPDM may be 50kg / cm 2 Up to 200kg / cm 2 , but embodiments of the present disclosure are not limited thereto. For example, the minimum elongation of EPDM may be 200%, but embodiments of the present disclosure are not limited thereto. For example, the operating temperature of EPDM may be -30°C to 110°C, but embodiments of the present disclosure are not limited thereto. For example, the protective member 410 may be configured with high elastic rubber or low elastic rubber, but embodiments of the present disclosure are not limited thereto. For example, the thickness of the protective member 410 may be 0.5 mm to 2 mm, but embodiments of the present disclosure are not limited thereto.

[0333] According to an embodiment of the present disclosure, since the protective member 410 is configured at the sound generating module 330, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cord can be more supplemented (or improved), and the sound device 30 and / or the vibration devices 333 and 335 can be protected from external impact. For example, the protective member 410 may be a sealing member, a packaging member, a buffer member, or a shock absorbing member, but the embodiments of the present disclosure are not limited thereto.

[0334] According to an embodiment of the present disclosure, the protective member 410 may be configured with a material different from that of the first coupling member 321. For example, the protective member 410 may be configured with a material having an adhesive force different from that of the first coupling member 321. The protective member 410 is configured with a material having an adhesive force different from that of at least one of the first coupling member 321 and the second coupling member 322, and thus, the protective member 410 may protect the sound device 30 and / or the vibration devices 333 and 335. For example, the protective member 410 may be configured as a rubber such as EPDM, and thus, the sound pressure level of the low-pitched vocal cords may be enhanced and the sound device 30 and / or the vibration devices 333 and 335 may be protected.

[0335] According to an embodiment of the present disclosure, the protective member 410 may be connected or coupled to the vibration member 331 and / or the vibration devices 333 and 335. The protective member 410 may be connected or coupled to the vibration member 331 and / or the second vibration device 335. For example, the protective member 410 may be configured to protect or fix the vibration member 331 and / or the vibration devices 333 and 335. The protective member 410 may be fixed at the vibration member 331 and / or the second vibration device 335 to protect the vibration member 331 and / or the second vibration device 335.

[0336] The vibration member 331 may include a first surface and a second surface different from (or opposite to) the first surface. For example, the housing 310 may be connected or coupled to the first surface of the vibration member 331. The protective member 410 may contact the second surface of the vibration member 331 and the second vibration device 335. For example, the protective member 410 may be configured to cover the second surface of the vibration member 331 and the second vibration device 335.

[0337] The protective member 410 may have the same size as the vibration member 331, but the embodiments of the present disclosure are not limited thereto. For example, the protective member 410 may have a size larger than the size of the vibration devices 333 and 335 and smaller than the size of the vibration member 331, but the embodiments of the present disclosure are not limited thereto.

[0338] According to another embodiment of the present disclosure, since the sound device 30 includes at least one or more of the first shell 311, the connecting member 380 and the protective member 410, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be further enhanced, the sound reproduction frequency band can be expanded, and the sound device 30 can be protected from external impacts.

[0339] Fig.21 A sound device according to another embodiment of the present disclosure is shown. Fig.21 As shown in the above reference Fig. 20 The embodiment described above additionally configures one or more holes at each of the vibration member 331 and the protection member 410. Therefore, in the following description, one or more holes will be described in detail, and other elements may be the same as those described above. Fig. 20 The elements described above are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig. 20 The description of the sound device 30 may be included in Fig.21 in the description.

[0340] Reference Fig.21 , the sound device 30 according to another embodiment of the present disclosure may further include one or more holes 331o.

[0341] One or more holes 331o may be configured at the vibration member 331. The vibration member 331 may include one or more holes 331o, which are configured at the periphery of the vibration devices 333 and 335. The description of the one or more holes 331o may be the same as Fig.19 The description of is substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below. Fig.19 The description of one or more holes 331o may be included in Fig.21 in the description.

[0342] The sound device 30 according to another embodiment of the present disclosure may further include one or more holes (or connection holes) 410 h at the protection member 410 .

[0343] One or more holes 410h of the protection member 410 may be configured to correspond to (or align with) one or more holes 331o at the vibration member 331. For example, one or more holes 410h of the protection member 410 may be connected or directly connected to one or more holes 331o at the vibration member 331. For example, the hole 410h may be a through hole, a sixth through hole, a second air hole, a second vent hole, a second air flow hole, a second duct hole, a second connection hole, a second communication hole, or a second space connection portion, etc., but embodiments of the present disclosure are not limited thereto.

[0344] According to another embodiment of the present disclosure, since the sound device 30 includes a first shell 311, one or more holes 331o configured at the vibration member 331, and one or more holes 410h configured at the protective member 410, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be further enhanced, and the sound reproduction frequency band can be expanded.

[0345] The inventors have recognized that the sound characteristics change based on the structure of the coupling portion 500. Therefore, the inventors have performed various studies and experiments on the structure of the coupling portion 500. Based on the extensive studies and experiments, the inventors invented a sound device including the coupling portion 500 for enhancing the sound characteristics and / or the sound pressure level characteristics and a vehicle device including the sound device. This will be described below.

[0346] Fig. 22 A sound device according to another embodiment of the present disclosure is shown. Fig.23 Another embodiment according to the present disclosure is shown. Fig. 22 The coupling portion shown in FIG. Fig. 22 and Fig.23 Shown by modifying the above reference Figures 3 to 21 Therefore, in the following description, the coupling part 500 will be described in detail, and other elements may be the same as those described above. Figures 3 to 21 The elements described in the description are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 21 In the description of the coupling portion 500, the description of other elements other than the description of the coupling portion 500 may be included in Fig. 22 and Fig.23 in the description.

[0347] Reference Fig. 22 and 23 In the sound device 30 according to another embodiment of the present disclosure, the coupling portion 500 may include a hollow member 502 having a hollow portion 501 and one or more holes 500h. The coupling portion 500 may further include a latch member 503 and a chamfered portion 503a. In the description of the coupling portion 500, the description of other elements except the chamfered portion 503a may be the same as that described above with reference to Figure 6 The description of is substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig.10 The description of the coupling portion 500 may be included in Fig. 22 and Fig.23 in the description.

[0348] The chamfered portion 503a may be disposed at the hollow portion 501. The chamfered portion 503a may be disposed at the hollow member 502. The chamfered portion 503a may be disposed at the first end (or lower surface) 500a of the hollow member 502. For example, the chamfered portion 503a may be disposed at the hollow member 502 and the latch member 503. For example, the chamfered portion 503a may be disposed at the corner between the hollow member 502 and the latch member 503.

[0349] The chamfered portion 503a according to an embodiment of the present disclosure may include a non-rectangular shape (or a non-right angle shape). For example, the chamfered portion 503a may be configured so that the corner between the hollow member 502 and the latch member 503 has a non-rectangular shape. For example, the chamfered portion 503a may include one or more of a curved shape (or a circular shape) and a sloped surface. For example, the chamfered portion 503a may have a curvature. For example, the chamfered portion 503a may have a curvature of 4mm (4R), but the embodiments of the present disclosure are not limited thereto. For example, the curvature of the chamfered portion 503a may change based on the length L of the latch member 503.

[0350] According to an embodiment of the present disclosure, the sound characteristics and / or sound pressure level characteristics of the sound output through the hollow portion 501 of the coupling portion 500 may be changed based on the curvature of the chamfered portion 503a. For example, in the case where the chamfered portion 503a has a non-rectangular shape, it can be seen that the peak and / or the dip from the low-pitched vocal band to the high-pitched vocal band is improved, thereby enhancing the balance characteristics of the sound pressure level or the flatness characteristics of the sound pressure level. In addition, as the curvature of the chamfered portion 503a increases, the flatness characteristics and / or the sound pressure level characteristics of the sound pressure level in the high-pitched vocal band may be further enhanced.

[0351] Therefore, according to an embodiment of the present disclosure, because the coupling portion 500 is configured to have a rounded or inclined surface, the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal band including the sound of the low-pitched vocal band can be enhanced, and the peak and / or dip in the high-pitched vocal band can be improved, thereby enhancing the balance characteristics of the sound pressure level or the flatness characteristics of the sound pressure level.

[0352] Fig.24 A sound device according to another embodiment of the present disclosure is shown. Fig.24 Shown by modifying the above reference Figure 22 to Figure 23 Therefore, in the following description, the connecting member 380 will be described in detail, and other elements can be the same as those described above. Fig.18The elements described in the description are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig. 22 and Fig.23 In the description of the connection member 380, the description of other elements other than the description of the connection member 380 may be included in Fig.24 in the description.

[0353] In configuration Fig.24 In the case of the connecting member 380 shown in , the inventors of the present disclosure have recognized that because the peripheral portion of the connecting member 380 is not connected to or does not contact the vehicle interior material 130, the sound characteristics and / or sound pressure level characteristics are reduced. For example, the inventors of the present disclosure have recognized that the loss of sound (or vibration transmission) occurs due to the peripheral portion of the connecting member 380 not being connected to or not contacting the vehicle interior material 130. Therefore, the inventors of the present disclosure have recognized that the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords are reduced. Therefore, the inventors have performed extensive research and experiments. Based on the extensive research and experiments, the inventors of the present disclosure have invented a sound device and a vehicle device including the sound device, which can further enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords. This will be described below.

[0354] Reference Fig.24 In the sound device 30 according to another embodiment of the present disclosure, the connecting member 380 may include a first portion and a second portion. The second portion may be a peripheral portion of the housing 310. The second portion may be a portion (or region) between the vehicle interior material 130 and the peripheral portion of the housing 310. The first portion may be a portion other than the peripheral portion of the housing 310. For example, the first portion may correspond to a central portion of the housing 310 surrounded by a second portion corresponding to the peripheral portion of the housing 310.

[0355] The first portion of the connecting member 380 may include a hole 380o that receives the protrusion 315 of the housing 310 (or the first housing 311). The housing 310 or the first housing 311 may include one or more regions. For example, the housing 310 or the first housing 311 may include a first region A1, a second region A2, and a third region A3.

[0356] The first area A1 may correspond to the central portion of the housing 310 (or the first housing 311). The first area A1 may be at the central portion of the housing 310 (or the first housing 311). The second area A2 may correspond to the peripheral portion of the housing 310 or the first housing 311 surrounding the central portion. The third area A3 may be between the first area A1 and the second area A2. For example, the first portion of the connecting member 380 may be at the first area A1 and the third area A3. For example, the second portion of the connecting member 380 may be at the second area A2.

[0357] According to an embodiment of the present disclosure, the first and second parts of the connection member 380 may have different thicknesses. For example, the connection member 380 may include a first and second parts having different thicknesses. In the connection member 380, the thickness T1 of the first part may be different from the thickness "T1+T2" of the second part. For example, in the connection member 380, the thickness "T1+T2" of the second part may be thicker than the thickness T1 of the first part. For example, the thickness T1 of the connection member 380 at the first area A1 may be different from the thickness "T1+T2" of the connection member 380 at the second area A2. At least one thickness of the connection member 30 at each of the first area A1 and the third area A3 may be different from the thickness "T1+T2" of the connection member 380 at the second area A2. For example, the thickness "T1+T2" of the connection member 380 at the second area A2 may be thicker than the thickness T1 of the connection member 380 at the first area A1.

[0358] According to an embodiment of the present disclosure, the second portion of the connection member 380 may have a thickness "T1+T2" thicker than the first portion, and therefore, the peripheral portion of the connection member 380 may be connected to or in contact with the vehicle interior material 130 without being partially detached (or lifted up). Therefore, the peripheral portion of the connection member 380 may be prevented from being partially detached (or lifted up) from the vehicle interior material 130, and the vibration at the peripheral portion of the housing 310 may be transferred to the vehicle interior material 130 without losing the vibration (or vibration transfer) at the peripheral portion of the housing 310. The vibration at the peripheral portion of the housing 310 may increase the vibration area of ​​the vehicle interior material 130, and therefore, the sound characteristics of the low-pitched vocal band may be further improved or enhanced.

[0359] Therefore, the sound generated by the vibration of the sound generating module 330 (or the sound device 30) can be transmitted to the vehicle interior material 130 without loss, and thus, the sound of the low-pitched vocal band can be further enhanced. For example, the vibration of the outer portion of the shell 310 (or the first shell 311) caused by the sound (or sound wave) generated in the internal space 313 of the shell 130 based on the vibration of the sound generating module 330 (or the sound device 30) can be transmitted to the vehicle interior material 130, and thus, the vibration efficiency transmitted from the shell 310 (or the sound device 30) to the vehicle interior material 130 can be increased, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0360] The connection member 380 according to an embodiment of the present disclosure may include a first connection member 381 and a second connection member 382 .

[0361] The first connecting member 381 may be at the first portion and the second portion. The first connecting member 381 may be connected to the housing 310. The first connecting member 381 may be connected to (or attached to) the first housing 311. The first connecting member 381 may be connected to (or attached to) the rear surface 311r of the first housing 311. The first connecting member 381 may be connected to (or attached to) the first area to the third area A1, A2 and A3 of the housing 310. For example, the first connecting member 381 may be connected to (or attached to) the entire rear surface 311r of the first housing 311.

[0362] According to an embodiment of the present disclosure, the first connection member 381 may be at the first portion and may include a hole 380o corresponding to the opening hole 315o of the housing 310. For example, the first connection member 381 may be at the first portion and may include a hole 380o receiving the protrusion 315 of the first housing 311.

[0363] The second connecting member 382 may be at the second portion. The second connecting member 382 may be connected to a portion of the first connecting member 381. The second connecting member 382 may be on the first connecting member 381 at the second portion. For example, the first portion may include only the first connecting member 381 of the first connecting member 381 and the second connecting member 382. The first connecting member 381 and the second connecting member 382 may be together at the second portion. For example, the second portion may include all of the first connecting member 381 and the second connecting member 382. For example, the first connecting member 381 and the second connecting member 382 may be together at the second area A2.

[0364] The first and second portions of the connection member 380 may have different widths (or sizes). In the connection member 380, the width of the first portion may be smaller than the width of the second portion. For example, the width of the connection member 380 at the first area A1 and the third area A3 may be smaller than the width of the connection member 380 at the second area A2. Therefore, the connection member 380 may include a first portion and a second portion having different sizes (or widths) and different thicknesses.

[0365] The second connecting member 382 may be at the periphery of the first connecting member 381. The second connecting member 382 may be configured to be stacked on the first connecting member 381 at the second portion. The second connecting member 382 may be configured to be stacked on the first connecting member 381 at the second area A2. Therefore, the thickness "T1+T2" of the second portion of the connecting member 380 may be thicker than the thickness T1 of the first portion, and therefore, the peripheral portion of the housing 310 may be connected to (or in contact with) the vehicle interior material 130 without being partially detached (or lifted). For example, the second connecting member 382 may be a buffer member or a pad member, but embodiments of the present disclosure are not limited thereto.

[0366] The first connecting member 381 can be Fig.18 The described connection members 380 are substantially the same, and thus, repeated descriptions may be omitted.

[0367] The second connecting member 382 may include the same material (or substance) as the material of the first connecting member 381, but the embodiments of the present disclosure are not limited thereto. For example, one of the first connecting member 381 and the second connecting member 382 may be configured with a relatively high elasticity (or Young's modulus) material. One of the first connecting member 381 and the second connecting member 382 may be a high elastic rubber, etc., but the embodiments of the present disclosure are not limited thereto. One of the first connecting member 381 and the second connecting member 382 may have a relatively high elasticity (or Young's modulus) material and may be configured with a relatively high tensile strength material. For example, one of the first connecting member 381 and the second connecting member 382 may include a rubber material, or may include ethylene propylene diene rubber (or ethylene propylene diene M-grade rubber), ethylene propylene rubber or polyurethane rubber. For example, ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of the present disclosure are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of the present disclosure are not limited thereto. For example, the tensile strength of EPDM may be 50kg / cm 2 Up to 200kg / cm 2, but the embodiments of the present disclosure are not limited thereto. For example, the minimum elongation of EPDM may be 200%, but the embodiments of the present disclosure are not limited thereto. For example, the use temperature of EPDM may be -30°C to 110°C, but the embodiments of the present disclosure are not limited thereto.

[0368] According to an embodiment of the present disclosure, the coupling member 320 may be configured with a material different from that of the connection member 380. For example, one of the first connection member 381 and the second connection member 382 may be configured with a material having higher elasticity than that of the coupling member 320.

[0369] According to an embodiment of the present disclosure, the width of the connection member 380 at the second portion may be greater than the width of the coupling member 320. For example, the width of the connection member 380 at the second area A2 may be greater than the width of the coupling member 320.

[0370] According to an embodiment of the present disclosure, each of the first connection member 381 and the second connection member 382 of the connection member 380 may have a compressive force (or a shrinkage force) and an elastic restoring force, and may be shrunk or compressed by the coupling between the coupling portion 500 and the first shell 311. For example, the first connection member 381 disposed (or inserted) between the first shell 311 and the vehicle interior material 130 may have a first thickness T1 obtained by pressure compression of the first shell 311. The second connection member 382 disposed (or inserted) between the first shell 311 and the vehicle interior material 130 may have a second thickness T2 obtained by pressure compression of the first shell 311.

[0371] The first thickness T1 of the first connection member 381 may be equal to or different from the second thickness T2 of the second connection member 382. The first thickness T1 of the first connection member 381 and the second thickness T2 of the second connection member 382 may each be 0.5 mm or more, but embodiments of the present disclosure are not limited thereto. For example, the first thickness T1 of the first connection member 381 and the second thickness T2 of the second connection member 382 may each be 0.5 mm to 3 mm, but embodiments of the present disclosure are not limited thereto.

[0372] The sound device 30 according to another embodiment of the present disclosure may further include an air gap AG at an area between the housing 310 and the vehicle interior material 130. For example, the air gap AG may be at an area between the vehicle interior material 130 and the first portion of the connecting member 380, or at an area between the first portion and the second portion of the connecting member 380. For example, the air gap AG may be at a third area A3 between the first area A1 and the second area A2 of the housing 310. For example, the air gap AG may be at an area between the third area A3 of the housing 310 and the vehicle interior material 130. For example, the air gap AG may be provided at the third area A3 between the first area A1 and the second area A2 of the housing 310, and thus the separation or interference between the vibration of the first area A1 and the vibration of the second area A2 may be minimized, thereby increasing the vibration force (or vibration amount) transmitted from the second area A2 (e.g., the peripheral portion) of the housing 310 to the vehicle interior material 130. Therefore, the frequency band (reproduction frequency band) of the low-pitched vocal band may be expanded, and thus the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band may also be further improved.

[0373] According to an embodiment of the present disclosure, a connecting member 380 including a first portion and a second portion having different thicknesses may be configured, thereby providing a sound device 30 in which the sound characteristics and / or the sound pressure level characteristics of the low-pitched sound band are further enhanced. According to an embodiment of the present disclosure, since the second connecting member 382 is configured, when the sound device 30 is coupled to a roof trim of a vehicle device, the vibration zone (or vibration area) of the roof trim of the vehicle device may be widened, and therefore, the sound characteristics and / or the sound pressure level characteristics of the low-pitched sound band may be further enhanced.

[0374] Fig.25 A method of fastening a coupling portion to a Fig.24 The method of the protrusion of the housing is shown in FIG.

[0375] Reference Fig.24 and Fig.25 According to an embodiment of the present disclosure, the first connecting member 381 of the connecting member 380 can be connected (or attached) to the rear surface (or the first part and the second part) of the shell 310 (or the first shell 311) so that the hole 380o accommodates the protrusion 315 of the shell 310 (or the first shell 311), and the second connecting member 382 of the connecting member 380 can be connected (or attached) to the outer peripheral part (or the second part) of the first connecting member 381.

[0376] The housing 310 or the first housing 311 may be disposed on the vehicle interior material 130 so that the protrusion 315 is accommodated in the hole 137 of the vehicle interior material 130. The coupling portion 500 may be coupled or fastened to the protrusion 315 by being accommodated (or inserted) (arrow direction) into the opening portion 310o of the protrusion 315 at (or within) the inner space of the vehicle based on a hook coupling scheme.

[0377] Therefore, the first shell 311 can be connected (or contact) with the interior material 130 and coupled to the coupling part 500 through the first connecting member 381 and the second connecting member 382, ​​and can vibrate the vehicle interior material 130 to output sound based on the vibration of the sound generating module 330.

[0378] The first connection member 381 may have an initial thickness T1' before being compressed (or contracted), and may be compressed (or contracted) to have a deformed thickness (or compressed thickness) T1 based on the pressure applied from the housing 310 through the coupling (or connection) between the coupling portion 500 and the housing 310. For example, when the coupling portion 500 is coupled (or connected) to the housing 310, the thickness of the first connection member 381 may be compressed from the initial thickness T1' to the compressed thickness T1 based on the pressure applied from the housing 310, and thus, the vibration of the first area A1 in the first housing 311 may be efficiently transmitted to the vehicle interior material 130 through the first portion of the first connection member 381. For example, when the housing 310 (or the sound device 30) is separated (or detached) from the vehicle interior material 130 by the detachment of the coupling portion 500, the first connection member 381 may be restored from the deformed thickness T1 to the initial thickness T1' by the elastic restoring force.

[0379] The second connection member 382 may have an initial thickness T2' before being compressed (or contracted), and may be compressed (or contracted) to have a deformed thickness (or compressed thickness) T2 based on the pressure applied from the housing 310 through the coupling (or connection) between the coupling portion 500 and the housing 310. For example, when the coupling portion 500 is coupled (or connected) to the housing 310, the thickness of the second connection member 382 may be compressed from the initial thickness T2' to the compressed thickness T2 based on the pressure applied from the housing 310, and thus, the vibration of the second area A2 at the first housing 311 may be efficiently transmitted to the vehicle interior material 130 through the compressed (or contracted) second portion of the first connection member 381 and the second connection member 382. For example, when the housing 310 (or the sound device 30) is separated (or detached) from the vehicle interior material 130 by the detachment of the coupling portion 500, the second connection member 382 may be restored from the deformed thickness T2 to the initial thickness T2' by the elastic restoring force.

[0380] Based on the coupling (or connection) between the coupling portion 500 and the shell 310, the vehicle interior material 130 connected to (or in contact with) the shell 310 or the first shell 311 can be deformed to include a zigzag portion or at least one bent portion, and thus, partial detachment (or lifting or separation) occurring between the outer portion of the shell 310 or the first shell 311 and the vehicle interior material 130 can be prevented by the second portion of the connecting member 380 having a relatively thick thickness. Therefore, the vibration at the outer portion of the shell 310 or the first shell 311 based on the vibration of the sound generating module 330 can be transmitted to the vehicle interior material 130 without losing the vibration (or vibration transmission) at the outer portion of the first shell 311, and thus, the efficiency of the vibration transmitted from the shell 310 to the vehicle interior material 130 can be improved, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0381] According to another embodiment of the present disclosure, the above reference Figures 12 to 21 The connecting member 380 described above may be modified to include Fig.23 and Fig.25 The connecting member 380 of the first connecting member 381 and the second connecting member 382 described above, and therefore, Figures 12 to 21 In the described sound device 30, the sound characteristics and / or the sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be more enhanced, and the sound reproduction band can be more expanded.

[0382] Fig.26 A sound device according to another embodiment of the present disclosure is shown. Fig.26 The above reference Fig.24 and Fig.25 Therefore, in the following description, the connecting member 380 will be described in detail, and other elements can be the same as those described above. Fig.24 and Fig.25 The elements described in the description are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Fig.24 and Fig.25 In the description of the connection member 380, the description of other elements other than the description of the connection member 380 may be included in Fig.26 in the description.

[0383] Reference Fig.26 , in the sound device 30 according to another embodiment of the present disclosure, the connection member 380 may include a first part and a second part.

[0384] The first portion of the connecting member 380 may include a hole 380o that receives the protrusion 315 of the housing 310 (or the first housing 311). The housing 310 or the first housing 311 may include one or more regions. For example, the housing 310 or the first housing 311 may include a first region A1, a second region A2, and a third region A3.

[0385] According to an embodiment of the present disclosure, the first and second parts of the connecting member 380 may have different thicknesses T3 and T4. For example, the connecting member 380 may include a first and second part having different thicknesses T3 and T4. In the connecting member 380, the thickness T3 of the first part may be different from the thickness T4 of the second part. For example, in the connecting member 380, the thickness T4 of the second part may be thicker than the thickness T3 of the first part. For example, the thickness T3 of the connecting member 380 at the first area A1 may be different from the thickness T4 of the connecting member 380 at the second area A2. For example, the thickness T4 of the connecting member 380 at the second area A2 may be thicker than the thickness T3 of the connecting member 380 at the first area A1. For example, the connecting member 380 may not be disposed at the third area A3 between the first area A1 and the second area A2 or at the part between the first part and the second part.

[0386] According to an embodiment of the present disclosure, the second portion of the connection member 380 may have a thickness T4 thicker than the first portion, and therefore, the peripheral portion of the connection member 380 may be connected to or in contact with the vehicle interior material 130 without being partially detached (or lifted or separated). Therefore, the peripheral portion of the connection member 380 may be prevented from being partially detached (or lifted or separated) from the vehicle interior material 130, and the vibration at the peripheral portion of the housing 310 may be transferred to the vehicle interior material 130 without losing the vibration (or vibration transfer) at the peripheral portion of the housing 310. The vibration at the peripheral portion of the housing 310 may increase the vibration area of ​​the vehicle interior material 130, and therefore, the sound characteristics of the low-pitched vocal cords may be further improved or enhanced.

[0387] Therefore, the sound generated by the vibration of the sound device 30 (or the sound generating module 330) can be transmitted to the vehicle interior material 130 without loss, and thus, the sound of the low-pitched vocal band can be further enhanced. For example, the vibration of the outer portion of the shell 310 (or the first shell 311) caused by the sound (or sound wave) generated in the internal space 313 of the shell 130 based on the vibration of the sound generating module 330 (or the sound device 30) can be transmitted to the vehicle interior material 130, and thus, the vibration efficiency transmitted from the shell 310 (or the sound device 30) to the vehicle interior material 130 can be increased, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0388] According to an embodiment of the present disclosure, the connection member 380 may include a first connection member 383 and a second connection member 384 .

[0389] The first connection member 383 may be connected to the rear surface 311r of the housing 310. The first connection member 383 may be at the first part. The first connection member 383 may be only at the first part of the first part and the second part. The first connection member 383 may be connected to (or attached to) the first housing 311 of the housing 310. For example, the first connection member 383 may be connected to (or attached to) the rear surface 311r of the first housing 311. For example, the first connection member 383 may be connected to (or attached to) the rear surface 311r of the first housing 311 corresponding to the first part of the first part and the second part. For example, the first connection member 383 may be connected to (or attached to) the center part (or rear center part) of the first housing 311 (or attached to). For example, the first connection member 383 may be connected to (or attached to) only the first area A1 of the first to third areas A1, A2, and A3 of the housing 310.

[0390] According to an embodiment of the present disclosure, the first connection member 383 may be at the first portion and may include a hole 380o corresponding to the opening hole 315o of the housing 310. For example, the first connection member 383 may be at the first portion and may include a hole 380o receiving the protrusion 315 of the first housing 311.

[0391] The second connecting member 384 may be at the second part. The second connecting member 384 may be only at the second part of the first part and the second part, and may be spaced apart from the first connecting member 383. The second connecting member 384 may be at the second part of the first part and the second part to surround the first connecting member 383, wherein the air gap AG is between the second connecting member 384 and the first connecting member 383. The second connecting member 384 may be connected to (or attached to) the second area A2 of the housing 310. For example, the second connecting member 384 may be connected to (or attached to) the rear surface 311r of the first housing 311 corresponding to the second part of the first part and the second part. For example, the second connecting member 384 may be connected to (or attached to) the peripheral part (or rear peripheral part) of the first housing 311 (or attached thereto). For example, the second connecting member 384 may be connected to (or attached to) only the second area A2 of the first to third areas A1, A2, and A3 of the housing 310.

[0392] The first and second portions of the connecting member 380 may have different widths (or sizes). The width of the first portion may be smaller than the width of the second portion. For example, the width of the first connecting member 383 at the first area A1 may be smaller than the width of the second connecting member 384 at the second area A2. Therefore, the first connecting member 383 and the second connecting member 384 may include different sizes (or widths) and different thicknesses.

[0393] Each of the first connection member 383 and the second connection member 384 may be a buffer member or a pad member, but embodiments of the present disclosure are not limited thereto.

[0394] The first connecting member 383 may include the same material (or substance) as the material of the second connecting member 384. Each of the first connecting member 383 and the second connecting member 384 may be a highly elastic rubber or the like, but the embodiments of the present disclosure are not limited thereto. For example, each of the first connecting member 383 and the second connecting member 384 may include a rubber material, or may include ethylene propylene diene rubber (or ethylene propylene diene M-grade rubber), ethylene propylene rubber, or polyurethane rubber.

[0395] According to an embodiment of the present disclosure, the width of the connection member 380 at the second portion may be greater than the width of the coupling member 320. For example, the width of the connection member 380 at the second area A2 may be greater than the width of the coupling member 320.

[0396] According to an embodiment of the present disclosure, each of the first connection member 383 and the second connection member 384 of the connection member 380 may have a compressive force (or a shrinkage force) and an elastic restoring force, and may be contracted or compressed by the coupling between the coupling portion 500 and the first shell 311. For example, the first connection member 383 disposed (or inserted) between the first shell 311 and the vehicle interior material 130 may have a first thickness (or a third thickness) T3 obtained by compression of the pressure of the first shell 311. The second connection member 384 disposed (or inserted) between the first shell 311 and the vehicle interior material 130 may have a second thickness (or a fourth thickness) T4 obtained by compression of the pressure of the first shell 311.

[0397] The first thickness T3 of the first connecting member 383 may be different from the second thickness T4 of the second connecting member 382. The first thickness T3 of the first connecting member 383 and the second thickness T4 of the second connecting member 384 may each be 0.5 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the first thickness T3 of the first connecting member 383 and the second thickness T4 of the second connecting member 384 may each be 0.5 mm to 3 mm, but the embodiments of the present disclosure are not limited thereto. For example, the first thickness T3 of the first connecting member 383 and the second thickness T4 of the second connecting member 384 may have different thicknesses within the range of 0.5 mm to 3 mm. For example, within the range of 0.5 mm to 3 mm, the second thickness T4 of the second connecting member 384 may be thicker than the first thickness T3 of the first connecting member 383.

[0398] The sound device 30 according to another embodiment of the present disclosure may further include an air gap AG. For example, the air gap AG may be at an area between the vehicle interior material 130 and the first portion of the connecting member 380, or at an area between the first portion and the second portion of the connecting member 380. For example, the air gap AG may be at a third area A3 between the first area A1 and the second area A2 of the housing 310. For example, the air gap AG may be at an area between the second area A2 of the housing 310 and the vehicle interior material 130. For example, the air gap AG may be provided at a third area A3 between the first area A1 and the second area A2 of the housing 310, and thus the separation or interference between the vibration of the first area A1 and the vibration of the second area A2 may be minimized, thereby increasing the vibration force (or amount of vibration) transmitted from the second area A2 (e.g., the peripheral portion) of the housing 310 to the vehicle interior material 130. Therefore, the frequency band (reproduction frequency band) of the low-pitched vocal band may be expanded, and thus the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band may also be improved.

[0399] According to an embodiment of the present disclosure, a connection member 380 including a first connection member 383 and a second connection member 384 having different thicknesses T3 and T4 may be configured, thereby providing a sound device 30 that further enhances the sound characteristics and / or sound pressure level characteristics of a low-pitched vocal cord. According to an embodiment of the present disclosure, since the second connection member 384 is configured, when the sound device 30 is coupled to a roof trim of a vehicle device, a vibration zone (or vibration area) of the roof trim of the vehicle device may be widened, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cord may be further enhanced.

[0400] Fig. 27 A method of fastening a coupling portion to a Fig.26 The method of the protrusion of the housing is shown in FIG.

[0401] Reference Fig.26 and Fig. 27 According to an embodiment of the present disclosure, the first connecting member 383 of the connecting member 380 can be connected (or attached) to the central portion (or first portion) of the shell 310 (or the first shell 311) so that the hole 380o accommodates the protrusion 315 of the shell 310 (or the first shell 311), and the second connecting member 384 of the connecting member 380 can be connected (or attached) to the outer portion (or second portion) of the shell 310 (or the first shell 311).

[0402] The housing 310 or the first housing 311 may be disposed on the vehicle interior material 130 so that the protrusion 315 is accommodated in the hole 137 of the vehicle interior material 130. The coupling portion 500 may be coupled or fastened to the protrusion 315 by being accommodated (or inserted) (arrow direction) into the opening portion 310o of the protrusion 315 at (or within) the inner space of the vehicle based on a hook coupling scheme.

[0403] Therefore, the first shell 311 can be connected (or contact) with the interior material 130 and coupled to the coupling part 500 through the first connecting member 383 and the second connecting member 384, and can vibrate the vehicle interior material 130 to output sound based on the vibration of the sound generating module 330.

[0404] The first connection member 383 may have an initial thickness T3' before being compressed (or contracted), and may be compressed (or contracted) to have a deformed thickness (or compressed thickness) T3 based on the pressure applied from the housing 310 through the coupling (or connection) between the coupling portion 500 and the housing 310. For example, when the coupling portion 500 is coupled (or connected) to the housing 310, the thickness of the first connection member 383 may be compressed from the initial thickness T3' to the compressed thickness T3 based on the pressure applied from the housing 310, and thus, the vibration of the first area A1 in the first housing 311 may be efficiently transmitted to the vehicle interior material 130 through the first connection member 381. For example, when the sound device 30 (or the housing 310) is separated (or detached) from the vehicle interior material 130 by the detachment of the coupling portion 500, the first connection member 383 may be restored from the deformed thickness T3 to the initial thickness T3' by the elastic restoring force.

[0405] The second connection member 384 may have an initial thickness T4' before being compressed (or contracted), and may be compressed (or contracted) to have a deformed thickness (or compressed thickness) T4 based on the pressure applied from the housing 310 through the coupling (or connection) between the coupling portion 500 and the housing 310. For example, when the coupling portion 500 is coupled (or connected) to the housing 310, the thickness of the second connection member 384 may be compressed from the initial thickness T4' to the compressed thickness T4 based on the pressure applied from the housing 310, and thus, the vibration of the second area A2 at the first housing 311 may be efficiently transmitted to the interior material 130 through the compressed (or contracted) second connection member 384. For example, when the housing 310 (or the sound device 30) is separated (or detached) from the vehicle interior material 130 by the detachment of the coupling portion 500, the second connection member 384 may be restored from the deformed thickness T4 to the initial thickness T4' by the elastic restoring force.

[0406] Based on the coupling (or connection) between the coupling portion 500 and the shell 310, the vehicle interior material 130 connected to (or in contact with) the shell 310 or the first shell 311 can be deformed to include a zigzag portion or at least one bent portion, and thus, partial detachment (or lifting or separation) occurring between the outer portion of the shell 310 or the first shell 311 and the vehicle interior material 130 can be prevented by the second connecting member 384 having a relatively thick thickness. Therefore, the vibration at the outer portion of the shell 310 or the first shell 311 based on the vibration of the sound generating module 330 can be transmitted to the vehicle interior material 130 without losing the vibration (or vibration transmission) at the outer portion of the first shell 311, and thus, the efficiency of the vibration transmitted from the shell 310 to the vehicle interior material 130 can be improved, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0407] According to another embodiment of the present disclosure, the above reference Figures 12 to 21 The connecting member 380 described above may be modified to include Fig.26 and Fig. 27 The connecting member 380 of the first connecting member 383 and the second connecting member 384 described above, and therefore, Figures 12 to 21 In the described sound device 30, the sound characteristics and / or the sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be more enhanced, and the sound reproduction band can be more expanded.

[0408] Fig.28 A vibration device according to an embodiment of the present disclosure is shown. Fig.29 According to the embodiments of the present disclosure Fig.28 A cross-sectional view taken along line II' shown in FIG. Fig.30 According to the embodiments of the present disclosure Fig.28 A cross-sectional view taken along line II-II' is shown in FIG.

[0409] Reference Figures 28 to 30 , the sound generation module 330 according to an embodiment of the present disclosure may include vibration devices 333 and 335. The vibration devices 333 and 335 may include one or more vibration generators 1310.

[0410] The vibration generator 1310 may include a piezoelectric material having piezoelectric properties. The vibration generator 1310 may vibrate (or displace or drive) a vibration member (or vehicle interior material) based on the vibration (or displacement or drive) of the piezoelectric material based on an electrical signal (or voice signal or sound signal) applied to the piezoelectric material. For example, the vibration generator 1310 may vibrate (or displace or drive) by alternately repeating contraction and / or expansion through the piezoelectric effect (or piezoelectric properties). For example, when alternately repeating contraction and / or expansion through the reverse piezoelectric effect, the vibration generator 1310 may vibrate (or displace or drive) in the vertical direction (or thickness direction) Z. For example, in the vibration generator 1310, a piezoelectric material including a piezoelectric ceramic may vibrate or mechanically displace (or vibrate or drive) in response to an electrical signal applied from the outside.

[0411] The vibration generator 1310 may be configured as a ceramic-based piezoelectric material capable of achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure. For example, the vibration generator 1310 may be a vibration generating device, a vibration membrane, a vibration generating membrane, a vibrator, an active vibrator, an active vibration generator, an actuator, an exciter, a membrane actuator, a membrane exciter, an ultrasonic actuator, or an active vibration member, but the embodiments of the present disclosure are not limited thereto.

[0412] The vibration generator 1310 according to an embodiment of the present disclosure may include a vibration generating part 1311 .

[0413] The vibration generating unit 1311 may be configured to vibrate by a piezoelectric effect based on a driving signal. For example, the vibration generating unit 1311 may include a piezoelectric type vibration unit. The vibration generating unit 1311 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, the vibration generating unit 1311 may be a vibration device, a piezoelectric device, a piezoelectric device unit, a piezoelectric device layer, a piezoelectric structure, a piezoelectric vibration unit, a piezoelectric vibration layer, etc., but the embodiments of the present disclosure are not limited thereto.

[0414] The vibration generating portion 1311 according to an embodiment of the present disclosure may include a vibration portion 1311 a , a first electrode portion 1311 b , and a second electrode portion 1311 c .

[0415] The vibration part 1311a may include a piezoelectric material or an electroactive material including a piezoelectric effect. For example, the vibration part 1311a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite, but the embodiments of the present disclosure are not limited thereto.

[0416] The vibration part 1311a may be configured as a ceramic-based material capable of achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure. For example, the vibration part 1311a may include at least one or more of lead titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but the embodiments of the present disclosure are not limited thereto.

[0417] The piezoelectric ceramic may be configured as a single crystal ceramic having a crystal structure, or may be configured as a ceramic material or a polycrystalline ceramic having a polycrystalline structure. The piezoelectric material comprising a single crystal ceramic may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7 or ZnO, but the embodiments of the present disclosure are not limited thereto. The piezoelectric material comprising a polycrystalline ceramic may include a lead zirconate titanate (PZT)-based material, which includes lead (Pb), zirconium (Zr) and titanium (Ti), or may include a lead zirconate nickel niobate (PZNN)-based material, which includes lead (Pb), zirconium (Zr), nickel (Ni) and niobium (Nb), but the embodiments of the present disclosure are not limited thereto. For example, the vibration part 1311 a may include at least one or more of calcium titanate (CaTiO 3 ) not containing lead (Pb), BaTiO 3 , and SrTiO 3 , but embodiments of the present disclosure are not limited thereto.

[0418] The first electrode portion 1311b may be disposed at a first surface (or upper surface or front surface) 1311s1 of the vibration portion 1311a. The first electrode portion 1311b may have the same size as the vibration portion 1311a, or may have a smaller size than the vibration portion 1311a.

[0419] The second electrode portion 1311c may be disposed at a second surface (or lower surface or rear surface) 1311s2 of the vibration portion 1311a that is opposite to or different from the first surface 1311s1. The second electrode portion 1311c may have the same size as the vibration portion 1311a, or may have a smaller size than the vibration portion 1311a. For example, the second electrode portion 1311c may have the same shape as the vibration portion 1311a, but embodiments of the present disclosure are not limited thereto.

[0420] According to an embodiment of the present disclosure, in order to prevent an electrical short circuit between the first electrode portion 1311b and the second electrode portion 1311c, each of the first electrode portion 1311b and the second electrode portion 1311c may be formed at the remaining portion except for the peripheral portion of the vibration portion 1311a. For example, the first electrode portion 1311b may be formed at the entire remaining portion except for the peripheral portion of the first surface 1311s1 of the vibration portion 1311a. For example, the second electrode portion 1311c may be formed at the entire remaining portion except for the peripheral portion of the second surface 1311s2 of the vibration portion 1311a. For example, the distance between the lateral surface (or outer side wall) of each of the first electrode portion 1311b and the second electrode portion 1311c and the lateral surface (or outer side wall) of the vibration portion 1311a may be at least 0.5 mm or more. For example, a distance between a lateral surface of each of the first electrode portion 1311 b and the second electrode portion 1311 c and a lateral surface of the vibration portion 1311 a may be at least 1 mm or more, but embodiments of the present disclosure are not limited thereto.

[0421] According to the embodiment of the present disclosure, one or more of the first electrode portion 1311b and the second electrode portion 1311c may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent conductive material or the semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but the embodiment of the present disclosure is not limited thereto. The opaque conductive material may include gold (Au), silver (Ag), platinum (Pt), palladium (Pd), molybdenum (Mo), magnesium (Mg), carbon, or silver (Ag) containing glass frit, etc., or may be made of their alloys, but the embodiment of the present disclosure is not limited thereto. For example, in order to enhance the electrical characteristics and / or vibration characteristics of the vibration portion 1311a, each of the first electrode portion 1311b and the second electrode portion 1311c may contain silver (Ag) having a low resistivity. For example, the carbon may include one or more of carbon black, ketjen black, carbon nanotubes, and carbon materials including graphite, but the embodiment of the present disclosure is not limited thereto.

[0422] The vibration portion 1311a may be polarized (or polarized) by a specific voltage applied to the first electrode portion 1311b and the second electrode portion 1311c in a specific temperature atmosphere or a temperature atmosphere that can be changed from a high temperature to a room temperature, but the embodiments of the present disclosure are not limited thereto. For example, the polarization direction (or polarization direction) formed in the vibration portion 1311a may be formed or aligned (or arranged) from the first electrode portion 1311b to the second electrode portion 1311c, but the embodiments of the present disclosure are not limited thereto. For example, the polarization direction (or polarization direction) formed in the vibration portion 1311a may be formed or aligned (or arranged) from the second electrode portion 1311c to the first electrode portion 1311b.

[0423] The vibration portion 1311a can be vibrated by contracting and / or expanding alternately and repeatedly by reverse piezoelectric effect based on a driving signal applied from the outside to the first electrode portion 1311b and the second electrode portion 1311c. For example, the vibration portion 1311a can be vibrated in a vertical direction (or thickness direction) and a planar direction by a signal applied to the first electrode portion 1311b and the second electrode portion 1311c. The vibration portion 1311a can be displaced (or vibrated or driven) by contraction and / or expansion in a planar direction, thereby improving the vibration characteristics including the sound characteristics and / or sound pressure level characteristics of the vibration generator 1310.

[0424] The vibration generator 1310 according to an embodiment of the present disclosure may further include a first cover member 1313 and a second cover member 1315 .

[0425] The first cover member 1313 may be disposed at the first surface of the vibration generating portion 1311. For example, the first cover member 1313 may be configured to cover the first electrode portion 1311b of the vibration generating portion 1311. For example, the first cover member 1313 may be at the first electrode portion 1311b. For example, the first cover member 1313 may be configured to have a larger size than the vibration generating portion 1311. The first cover member 1313 may be configured to protect the first surface of the vibration generating portion 1311 and the first electrode portion 1311b.

[0426] The second cover member 1315 may be disposed at the second surface of the vibration generating portion 1311. For example, the second cover member 1315 may be configured to cover the second electrode portion 1311c of the vibration generating portion 1311. For example, the second cover member 1315 may be at the second electrode portion 1311c. For example, the second cover member 1315 may be configured to have a larger size than the vibration generating portion 1311, and may be configured to have the same size as the first cover member 1313. The second cover member 1315 may be configured to protect the second surface of the vibration generating portion 1311 and the second electrode portion 1311c.

[0427] The first cover member 1313 and the second cover member 1315 according to an embodiment of the present disclosure may include the same material or different materials. For example, each of the first cover member 1313 and the second cover member 1315 may be configured to be a polyimide (PI) film, a polyethylene terephthalate (PET) film, or a polyethylene naphthalate (PEN) film, but the embodiments of the present disclosure are not limited thereto.

[0428] The first cover member 1313 may be connected or coupled to the first surface of the vibration generating part 1311 or the first electrode part 1311 b through the first adhesive layer 1317. For example, the first cover member 1313 may be connected or coupled to the first surface of the vibration generating part 1311 or the first electrode part 1311 b through a film lamination process using the first adhesive layer 1317.

[0429] The second cover member 1315 may be connected or coupled to the second surface of the vibration generating part 1311 or the second electrode part 1311 c through the second adhesive layer 1319. For example, the second cover member 1315 may be connected or coupled to the second surface of the vibration generating part 1311 or the second electrode part 1311 c through a film lamination process using the second adhesive layer 1319.

[0430] Each of the first adhesive layer 1317 and the second adhesive layer 1319 according to an embodiment of the present disclosure may include an electrically insulating material having adhesiveness and capable of compression and decompression. For example, each of the first adhesive layer 1317 and the second adhesive layer 1319 may include epoxy resin, acrylic resin, silicone resin, polyurethane resin, acrylic-based polymer, silicone-based polymer, or polyurethane-based polymer, but embodiments of the present disclosure are not limited thereto.

[0431] The first adhesive layer 1317 and the second adhesive layer 1319 may be disposed between the first cover member 1313 and the second cover member 1315 to surround the vibration generating part 1311. For example, one or more of the first adhesive layer 1317 and the second adhesive layer 1319 may be disposed to partially or completely surround the vibration generating part 1311.

[0432] Either the first cover member 1313 or the second cover member 1315 may be Figures 3 to 27 The adhesive members 332 and 334 shown in FIG. 1 are connected or coupled to the vibration member 331 .

[0433] The vibration generator 1310 according to an embodiment of the present disclosure may further include a signal supply member 1320 .

[0434] The signal supply member 1320 may be configured to supply a driving signal supplied from the driving circuit portion to the vibration generating portion 1311. The signal supply member 1320 may be configured to be electrically connected to the vibration portion 1311a. The signal supply member 1320 may be configured to be electrically connected to the first electrode portion 1311b and the second electrode portion 1311c of the vibration generating portion 1311.

[0435] A portion of the signal supply member 1320 may be accommodated (or inserted) between the first cover member 1313 and the second cover member 1315. An end portion (or distal portion or one side) of the signal supply member 1320 may be disposed or inserted (or accommodated) between an edge portion (or one peripheral portion) of the first cover member 1313 and an edge portion (or one peripheral portion) of the second cover member 1315. An edge portion of the first cover member 1313 and an edge portion of the second cover member 1315 may accommodate or vertically (or up and down) cover the end portion (or distal portion or one side) of the signal supply member 1320. Therefore, the signal supply member 1320 may be integrated with the vibration generating portion 1311. Therefore, the sound generating module 330 or the vibration devices 333 and 335 may be implemented as a membrane type integrated with the signal supply member 1320. For example, the signal supply member 1320 may be configured as a portion (or a component) with the vibration generating portion 1311, thereby achieving a single material effect. For example, the signal supply member 1320 can be configured as a signal cable, a flexible cable, a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but the embodiments of the present disclosure are not limited thereto.

[0436] The signal supply member 1320 according to an embodiment of the present disclosure may include a base member 1321 and a plurality of signal lines 1323a and 1323b. For example, the signal supply member 1320 may include a base member 1321, a first signal line 1323a, and a second signal line 1323b.

[0437] The base member 1321 may include a transparent or opaque plastic material, but the embodiments of the present disclosure are not limited thereto. The base member 1321 may have a certain width along the first direction X, and may extend long along a second direction Y intersecting the first direction X.

[0438] The first signal line 1323a and the second signal line 1323b may be disposed at a first surface of the base member 1321 parallel to the second direction Y, and may be spaced apart from each other or electrically separated from each other along the first direction X. The first signal line 1323a and the second signal line 1323b may be disposed parallel to each other at the first surface of the base member 1321. For example, the first signal line 1323a and the second signal line 1323b may be implemented in a line shape by patterning a metal layer (or a conductive layer) formed or deposited at the first surface of the base member 1321.

[0439] End portions (or distal end portions or one side) of the first signal line 1323 a and the second signal line 1323 b may be separated from each other and thus may be individually bent or curved.

[0440] The end portion (or distal portion or one side) of the first signal line 1323a may be electrically connected to the first electrode portion 1311b of the vibration generating portion 1311. For example, the end portion of the first signal line 1323a may be electrically connected to at least a portion of the first electrode portion 1311b of the vibration generating portion 1311 in one edge portion of the first cover member 1313. For example, the end portion (or distal portion or one side) of the first signal line 1323a may be electrically connected and directly connected to at least a portion of the first electrode portion 1311b of the vibration generating portion 1311. For example, the end portion (or distal portion or one side) of the first signal line 1323a may be electrically connected to or directly contact the first electrode portion 1311b of the vibration generating portion 1311. For example, the end portion of the first signal line 1323a may be electrically connected to the first electrode portion 1311b by a conductive double-sided tape. Therefore, the first signal line 1323 a may be configured to transfer the first driving signal supplied from the driving circuit portion (or the vibration driver) to the first electrode portion 1311 b of the vibration generating portion 1311 .

[0441] The end portion (or distal portion or one side) of the second signal line 1323b can be electrically connected to the second electrode portion 1311c of the vibration generating unit 1311. For example, the end portion of the second signal line 1323b can be electrically connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311 in one edge portion of the second cover member 1315. For example, the end portion of the second signal line 1323b can be electrically connected and directly connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311. For example, the end portion of the second signal line 1323b can be electrically connected to or directly contact the second electrode portion 1311c of the vibration generating unit 1311. For example, the end portion of the second signal line 1323b can be electrically connected to the second electrode portion 1311c of the vibration generating unit 1311 by a conductive double-sided tape. Therefore, the second signal line 1323b can be configured to transfer the second drive signal supplied from the drive circuit unit (or vibration driver) to the second electrode portion 1311c of the vibration generating unit 1311.

[0442] The signal supply member 1320 according to an embodiment of the present disclosure may further include an insulating layer 1325 .

[0443] The insulating layer 1325 may be disposed at the first surface of the base member 1321 to cover each of the first signal line 1323 a and the second signal line 1323 b except for an end portion (or one side) of the signal supply member 1320 .

[0444] An end portion (or one side) of the signal supply member 1320 including an end portion (or one side) of the base member 1321 and an end portion (or one side) 1325a of the insulating layer 1325 may be inserted (or accommodated) between the first cover member 1313 and the second cover member 1315, and may be fixed between the first cover member 1313 and the second cover member 1315 by the first adhesive layer 1317 and the second adhesive layer 1319. Therefore, an end portion (or one side) of the first signal line 1323a may remain electrically connected to the first electrode portion 1311b of the vibration generating portion 1311, and an end portion (or one side) of the second signal line 1323b may remain electrically connected to the second electrode portion 1311c of the vibration generating portion 1311. In addition, an end portion (or one side) of the signal supply member 1320 can be inserted (or accommodated) and fixed between the vibration generating part 1311 and the first cover member 1313, and thus, a contact defect between the vibration generator 1310 and the signal supply member 1320 caused by movement of the signal supply member 1320 can be prevented.

[0445] In the signal supply member 1320 according to the embodiment of the present disclosure, each of the end portion (or one side) of the base member 1321 and the end portion (or one side) 1325a of the insulating layer 1325 can be removed. For example, each of the end portion of the first signal line 1323a and the end portion of the second signal line 1323b can be exposed to the outside without being supported or covered by each of the end portion (or one side) 1325a of the base member 1321 and the end portion (or one side) 1325a of the insulating layer 1325, respectively. For example, the end portion (or one side) of each of the first signal line 1323a and the second signal line 1323b can protrude (or extend) from the end 1321e of the base member 1321 or the end 1325e of the insulating layer 1325 to have a certain length. Therefore, each of the end portion (or distal portion or one side) of each of the first signal line 1323a and the second signal line 1323b can be bent individually or independently.

[0446] An end portion (or one side) of the first signal line 1323a that is not supported by an end portion (or one side) of the base member 1321 and an end portion 1325a of the insulating layer 1325 may be directly connected to or directly contact the first electrode portion 1311b of the vibration generating portion 1311. An end portion (or one side) of the second signal line 1323b that is not supported by an end portion (or one side) of the base member 1321 and an end portion 1325a of the insulating layer 1325 may be directly connected to or directly contact the second electrode portion 1311c of the vibration generating portion 1311.

[0447] According to an embodiment of the present disclosure, a portion of the signal supply member 1320 or a portion of the base member 1321 may be disposed or inserted (or accommodated) between the first cover member 1313 and the second cover member 1315, and thus, the signal supply member 1320 may be integrated (or configured) as one body with the vibration generating part 1311. Therefore, the vibration generating part 1311 and the signal supply member 1320 may be configured as one part (or one component), and thus, a single material effect may be obtained.

[0448] According to an embodiment of the present disclosure, the first signal line 1323a and the second signal line 1323b of the signal supply member 1320 may be integrated with the vibration generator 1310, and thus, a welding process for electrical connection between the vibration generator 1310 and the signal supply member 1320 may not be required. Therefore, the manufacturing process and structure of the vibration devices 333 and 335 may be simplified, and the danger associated with the welding process may be reduced.

[0449] Fig.31 A vibration portion according to another embodiment of the present disclosure is shown. Fig.31 The above reference Figures 28 to 30 Another embodiment of the vibration portion is described.

[0450] Reference Fig.29 and Fig.31 The vibration part 1311a according to another embodiment of the present disclosure may include a plurality of first parts 1311a1 and a plurality of second parts 1311a2. For example, the plurality of first parts 1311a1 and the plurality of second parts 1311a2 may be alternately and repeatedly arranged along the second direction Y (or the first direction X).

[0451] Each of the plurality of first portions 1311a1 may include an inorganic material portion having a piezoelectric effect (or piezoelectric properties). For example, each of the plurality of first portions 1311a1 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, each of the plurality of first portions 1311a1 may be an inorganic portion, an inorganic material portion, a piezoelectric portion, a piezoelectric material portion, or an electroactive portion, but the embodiments of the present disclosure are not limited thereto.

[0452] According to an embodiment of the present disclosure, each of the plurality of first portions 1311a1 may have a first width W1 parallel to the second direction Y (or the first direction X), and may extend along the first direction X (or the second direction Y). Figures 28 to 30 The described vibration parts 1311 a are substantially the same, and thus, a repeated description is omitted or will be briefly given below.

[0453] Each of the plurality of second portions 1311a2 may be disposed between the plurality of first portions 1311a1. For example, each of the plurality of first portions 1311a1 may be disposed between two adjacent second portions 1311a2 of the plurality of second portions 1311a2. Each of the plurality of second portions 1311a2 may have a second width W2 parallel to the second direction Y (or the first direction X), and may extend along the first direction X (or the second direction Y). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portion 1311a1 and the second portion 1311a2 may include a line shape or a stripe shape having the same size or different sizes.

[0454] Each of the plurality of second parts 1311a2 may be configured to fill a gap between two adjacent first parts of the plurality of first parts 1311a1. Each of the plurality of second parts 1311a2 may be configured to fill a gap between two adjacent first parts of the plurality of first parts 1311a1, and thus may be connected to or attached to a lateral surface of a first part 1311a1 adjacent thereto. According to an embodiment of the present disclosure, each of the plurality of first parts 1311a1 and the plurality of second parts 1311a2 may be disposed (or arranged) in parallel with each other at the same plane (or the same layer). Therefore, the vibration portion 1311a may be expanded to a desired size or length by the lateral coupling (or connection) of the first part 1311a1 and the second part 1311a2.

[0455] According to an embodiment of the present disclosure, each of the plurality of second parts 1311a2 can absorb the impact applied to the first part 1311a1, and thus can enhance the overall durability of the first part 1311a1 and provide flexibility to the vibration part 1311a. Each of the plurality of second parts 1311a2 can include an organic material having a ductile property. For example, each of the plurality of second parts 1311a2 can include one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the embodiment of the present disclosure is not limited thereto. For example, each of the plurality of second parts 1311a2 can be an organic part, an organic material part, an adhesive part, a stretching part, a bending part, a damping part, or an extension part, but the embodiment of the present disclosure is not limited thereto.

[0456] The first surface of each of the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be commonly connected to the first electrode portion 1311b. The second surface of each of the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be commonly connected to the second electrode portion 1311c. For example, one or both of the first electrode portion 1311b and the second electrode portion 1311c may be formed as a pattern-shaped electrode to correspond only to the plurality of first portions 1311a1.

[0457] A plurality of first parts 1311a1 and a plurality of second parts 1311a2 may be disposed on (or connected to) the same plane, and therefore, the vibration part 1311a according to another embodiment of the present disclosure may have a single film type. Therefore, the vibration generating part 1311 or the vibration generator 1310 including the vibration part 1311a according to another embodiment of the present disclosure may be vibrated by the first part 1311a1 having vibration characteristics, and may be bent into a curved shape by the second part 1311a2 having flexibility.

[0458] Fig.32 A vibration portion according to another embodiment of the present disclosure is shown. Fig.32 The above reference Figures 28 to 30 Another embodiment of the vibration portion is described.

[0459] Reference Fig.29 and Fig.32 , the vibration part 1311 a according to another embodiment of the present disclosure may include a plurality of first portions 1311 a 3 and a second portion 1311 a 4 disposed between the plurality of first portions 1311 a 3 .

[0460] Each of the plurality of first portions 1311a3 may be disposed to be spaced apart from each other along each of the first direction X and the second direction Y. For example, each of the plurality of first portions 1311a3 may have a hexahedral shape having the same size and may be disposed in a lattice shape, but embodiments of the present disclosure are not limited thereto. For example, each of the plurality of first portions 1311a3 may have a circular plate, an oval plate, or a polygonal plate having the same size as each other, but embodiments of the present disclosure are not limited thereto.

[0461] Each of the plurality of first portions 1311a3 may be the same as that referred to above. Fig.31 The first part 1311a1 of the description is substantially the same, and therefore, a repeated description is omitted or will be briefly given below.

[0462] The second portion 1311a4 may be disposed between the plurality of first portions 1311a3 along each of the first direction X and the second direction Y. The second portion 1311a4 may be configured to fill a gap between two adjacent first portions 1311a3, or to be adjacent to each of the plurality of first portions 1311a3, or to surround each of the plurality of first portions 1311a3, and thus, the second portion 1311a4 may be connected to or attached to the first portion 1311a3 adjacent thereto. The second portion 1311a4 may be similar to the first portion 1311a3 described above with reference to Fig.31 The second part 1311a2 of the description is substantially the same, and therefore, a repeated description is omitted or will be briefly given below.

[0463] The first surface of each of the plurality of first portions 1311a3 and the second portions 1311a4 may be connected in common to the first electrode portion 1311b. The second surface of each of the plurality of first portions 1311a3 and the second portions 1311a4 may be connected in common to the second electrode portion 1311c. For example, one or both of the first electrode portion 1311b and the second electrode portion 1311c may be formed as a pattern-shaped electrode to correspond only to the plurality of first portions 1311a3.

[0464] A plurality of first portions 1311a3 and second portions 1311a4 may be disposed on (or connected to) the same plane, and therefore, the vibration portion 1311a according to another embodiment of the present disclosure may have a single film type. Therefore, the vibration generating portion 1311 or the vibration generator 1310 including the vibration portion 1311a according to another embodiment of the present disclosure may be vibrated by the first portion 1311a3 having vibration characteristics, and may be bent into a curved shape by the second portion 1311a4 having flexibility.

[0465] Fig.33 A vibration device according to another embodiment of the present disclosure is shown. Fig.33 Shown above includes reference Fig. 9 A vibration device of one or more vibration generators is described.

[0466] Reference Fig. 9 and Fig.33 , the vibration devices 333 and 335 according to another embodiment of the present disclosure may include two or more vibration generators 333A, 333B, 335A, and 335B. For example, the vibration devices 333 and 335 may include first vibration generators 333A and 335A and second vibration generators 333B and 335B.

[0467] The first vibration generators 333A and 335A and the second vibration generators 333B and 335B can overlap or stack each other to shift (or drive or vibrate) in the same direction to maximize the amplitude displacement of the vibration devices 333 and 335 or the amplitude displacement of the vibration member 331. For example, the first vibration generators 333A and 335A and the second vibration generators 333B and 335B can have substantially the same size, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration generators 333A and 335A and the second vibration generators 333B and 335B can have substantially the same size within the error range of the manufacturing process, but the embodiments of the present disclosure are not limited thereto. Therefore, the first vibration generators 333A and 335A and the second vibration generators 333B and 335B can maximize the amplitude displacement of the vibration devices 333 and 335 and / or the amplitude displacement of the vibration member 331.

[0468] According to an embodiment of the present disclosure, any one of the first vibration generators 333A and 335A and the second vibration generators 333B and 335B may be Figures 3 to 27 The illustrated adhesive members 332 and 334 are connected or coupled to the vibration member 331. For example, the first vibration generators 333A and 335A may be connected or coupled to the vibration member 331 through the adhesive members 332 and 334.

[0469] Each of the first vibration generators 333A and 335A and the second vibration generators 333B and 335B may be the same as described above with reference to Figure 28 to Figure 32 The vibration generating part 1311 described above is the same or substantially the same, and thus, the same reference numerals refer to the same elements, and a repeated description is omitted or will be briefly given below.

[0470] The vibration devices 333 and 335 according to another embodiment of the present disclosure may further include intermediate members 333M and 335M.

[0471] The intermediate members 333M and 335M may be disposed or connected between the first vibration generators 333A and 335A and the second vibration generators 333B and 335B. For example, the intermediate members 333M and 335M may be disposed or connected between the second cover member 1315 of the first vibration generators 333A and 335A and the first cover member 1313 of the second vibration generators 333B and 335B. For example, the intermediate members 333M and 335M may be adhesive members or connecting members, but embodiments of the present disclosure are not limited thereto.

[0472] According to the intermediate members 333M and 335M of the embodiments of the present disclosure, the materials including the adhesive layer can be configured, and the adhesive layer has good adhesive force or attachment force relative to each of the first vibration generators 333A and 335A and the second vibration generators 333B and 335B. For example, the intermediate members 333M and 335M may include foam pads, double-sided tapes, double-sided foam tapes, double-sided pads, double-sided foam pads or adhesives, etc., but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate members 333M and 335M may include epoxy resin, acrylic acid, silicone resin or polyurethane, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate members 333M and 335M may include a polyurethane-based material (or substance) having relatively ductile properties. Therefore, vibration loss caused by displacement interference between the first vibration generators 333A and 335A and the second vibration generators 333B and 335B can be reduced or minimized, or each of the first vibration generators 333A and 335A and the second vibration generators 333B and 335B can be freely displaced (or vibrated or driven).

[0473] The vibration devices 333 and 335 according to another embodiment of the present disclosure may include first vibration generators 333A and 335A and second vibration generators 333B and 335B, which are stacked (or piled or overlapped) to vibrate (or shift or drive) in the same direction, and thus, the displacement amount or amplitude displacement can be maximized or increased. Therefore, the displacement amount (or bending force or driving force) or displacement amplitude of the vibration member 331 can be maximized or increased.

[0474] Fig.34 A sound device according to another embodiment of the present disclosure is shown. Fig.35 Another embodiment of the present disclosure is shown. Fig.34 A cross-sectional view of the vibration device shown in FIG.

[0475] Fig.36 According to another embodiment of the present disclosure Fig.34 An exploded perspective view of the sound device shown in FIG. Figure 34 to Figure 36 Shown by modifying the above reference Figures 3 to 8 The embodiment is realized by the vibration device of the sound generating module 330 in the sound device 30 described in the embodiment. Therefore, in the following description, the vibration device will be described in detail, and other elements may be the same as those described above. Figures 3 to 8 The elements described in the description are substantially the same, and therefore, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or will be briefly given below. Figures 3 to 8In the description of the vibration devices 333 and 335, the description of other elements other than the description of the vibration devices 333 and 335 may be included in Figure 34 to Figure 36 in the description.

[0476] Reference Figure 34 to Figure 36 In the sound device 30 according to another embodiment of the present disclosure, the vibration device 337 of the sound generation module 330 may include a coil-type vibration device or a coil-type actuator configured to vibrate the vibration member 331. For example, the vibration device 337 may be configured to vibrate using an electric current (or voice current) applied based on Fleming's left-hand rule. For example, the vibration device 337 may include a sound generator, a sound generating device, a vibration generating device, a sound wave generating device, a vibration generator, a vibration source, or a sound wave generator, etc., but the embodiments of the present disclosure are not limited thereto. For example, the vibration device 337 may be configured with a sound actuator, a sound exciter, or a sound transducer including a coil (or voice coil) and a magnet.

[0477] The vibration device 337 may be disposed or arranged at the second space 313b of the internal space 313 of the housing 310 to vibrate (displace) the vibration member 331. For example, the vibration device 337 may be disposed or arranged between the second housing 312 and the vibration member 331. For example, the vibration device 337 may be disposed or arranged between the second plate 312a of the second housing 312 and the second surface 331s2 of the vibration member 331.

[0478] The vibration device 337 may be supported by or coupled to the housing 310, and connected or coupled to the vibration member 331. For example, the vibration device 337 may be supported by or coupled to the second housing 312, and connected or coupled to the vibration member 331. For example, the vibration device 337 may be supported by or coupled to the second plate 312a of the second housing 312, and connected or coupled to the vibration member 331. For example, the vibration device 337 may be supported by or coupled to the second plate 312a of the second housing 312, and may be connected or coupled to the second surface 331s2 of the vibration member 331. For example, the second surface 331s2 of the vibration member 331 at the periphery of the vibration device 337 may be the second surface of the sound generating module 330.

[0479] The vibration device 337 may vibrate (or displace or drive) based on a driving signal (or a vibration driving signal or a voice signal) applied thereto to vibrate (or displace or drive) the vibration member 331 .

[0480] The sound device 30 or the sound generating module 330 according to an embodiment of the present disclosure may further include a fixing member 336 .

[0481] The fixing member 336 may be configured to fix the vibration device 337 to the housing 310. For example, the fixing member 336 may be configured to fix the vibration device 337 to the second housing 312 or the second plate 312a of the second housing 312. Therefore, the vibration device 337 may be fixed (or supported) or connected (or coupled) to the second housing 312 or the second plate 312a of the second housing 312 by the fixing member 336.

[0482] The fixing member 336 according to an embodiment of the present disclosure may be an adhesive member (or a second adhesive member). The adhesive member may be disposed or connected between at least a portion of the vibration device 337 and the second housing 312 (or the second plate 312a of the second housing 312). Therefore, the vibration device 337 may be fixed (or supported) or connected (or coupled) to the second housing 312 (or the second plate 312a) by the adhesive member. For example, the adhesive member may be configured with an adhesive, a double-sided tape, a double-sided sponge tape, a double-sided porous tape, or a double-sided buffer tape, etc., but the embodiments of the present disclosure are not limited thereto.

[0483] The fixing member 336 according to another embodiment of the present disclosure may include a plurality of screws (or a plurality of bolts). The plurality of screws may pass through at least a portion of the vibration device 337 and may be fastened to the second housing 312 or the second plate 312a of the second housing 312. Therefore, the vibration device 337 may be fixed (or supported) or connected (or coupled) to the second housing 312 or the second plate 312a of the second housing 312 by a plurality of screws.

[0484] The sound device 30 or the sound generating module 330 according to an embodiment of the present disclosure may further include an adhesive member (or a first adhesive member) 338 .

[0485] The adhesive member 338 may be disposed (or inserted) between the vibration member 331 and the vibration device 337. The adhesive member 338 may be configured to connect (or couple) the vibration device 337 to the vibration member 331. For example, the adhesive member 338 may be disposed or connected between the vibration device 337 and the second surface 331s2 of the vibration member 331. Therefore, the vibration device 337 may be connected (or coupled) to the vibration member 331 through the adhesive member 338. For example, the vibration device 337 may be attached to the vibration member 331 or the second surface 331s2 of the vibration member 331 through the adhesive member 338. For example, the adhesive member 338 may be configured with a double-sided tape, a double-sided foam tape, a double-sided pad, a double-sided foam pad, a conductive double-sided tape, a conductive double-sided foam tape, or a conductive adhesive, etc., but the embodiments of the present disclosure are not limited thereto.

[0486] The sound device 30 or the sound generating module 330 according to an embodiment of the present disclosure may further include a heat dissipation plate 339 .

[0487] The heat sink 339 may be disposed or connected between the vibration device 337 and the vibration member 331 of the sound generating module 330. The heat sink 339 may be attached to the second surface 331s2 of the vibration member 331 to overlap with the vibration device 337, and may be coupled (or connected) to the vibration device 337. The heat sink 339 may be connected (or coupled) to the vibration device 337 by an adhesive member 338. For example, the vibration device 337 may be attached or connected (or coupled) to the heat sink 339 by an adhesive member 338. The heat sink 339 may dissipate (or diffuse) the heat generated when the vibration device 337 is driven (or vibrated) toward the vibration member 331, and may thus prevent the performance of the vibration device 337 from being reduced.

[0488] The heat sink 339 may be configured to have a relatively large size (or area) compared to the vibration device 337. The heat sink 339 may be formed of a metal material having high thermal conductivity, such as one of aluminum (Al), copper (Cu), silver (Ag), and magnesium (Mg), or an alloy thereof, etc., but embodiments of the present disclosure are not limited thereto. For example, the heat sink 339 may be a heat diffusion member, a heat diffusion sheet, a heat diffusion layer, a heat diffusion plate, a radiator, a heat sink, or a heat dissipation layer, etc., but embodiments of the present disclosure are not limited thereto.

[0489] The vibration device 337 according to an embodiment of the present disclosure may include a base frame 337a, a magnetic circuit portion including a bobbin 337b, and a damper 337e. For example, the vibration device 337 may include a base frame 337a, a bobbin 337b, a magnet 337c, a coil 337d, and a damper 337e.

[0490] The base frame 337a may be the main body of the vibration device 530. The base frame 337a may support the magnet 337c. The base frame 337a may include a metal material having magnetism such as iron (Fe). The base frame 337a may be referred to as a base plate, a lower plate, a yoke, etc., but the embodiments of the present disclosure are not limited thereto.

[0491] The base frame 337a may include a groove portion to accommodate the magnet 337c and the bobbin 337b. For example, the groove portion may be concavely formed from the upper surface of the base plate 337a to have a shape corresponding to the shape of each of the magnet 337c and the bobbin 337b.

[0492] The magnetic circuit portion may be disposed at the base frame 337a and may be configured to vibrate (or displace) the vibration member 331. For example, the magnetic circuit portion may include a magnet 337c, a bobbin 337b, and a coil 337d, which are disposed at the base frame 337a. For example, the magnetic circuit portion may be a magnetic vibration component or a magnetic vibration unit, but the embodiments of the present disclosure are not limited thereto.

[0493] The magnetic circuit portion according to an embodiment of the present disclosure may have an external magnetic type structure or a dynamic magnetic type structure in which the magnet 337c is arranged outward from the coil 337d (or the bobbin 337b), or may have an internal magnetic type structure or a microstructure in which the magnet 337c is arranged inward from the coil 337d (or the bobbin 337b). The vibration device 337 including the magnetic circuit portion having the internal magnetic type structure may have a completely small size and low leakage magnetic flux. The vibration device 337 according to an embodiment of the present disclosure may have an external magnetic type structure or an internal magnetic type structure, and an example in which the vibration device 337 has an internal magnetic type will be described below.

[0494] The magnet 337c may be received or inserted into a groove portion of the base frame 337a. The magnet 337c may be a permanent magnet that can be received or inserted into the bobbin 337b.

[0495] The bobbin 337b may be provided on the base frame 337a so as to surround the magnet 337c. For example, the bobbin 337b may include a structure formed of a material obtained by processing pulp or paper, Al or magnesium (Mg) or an alloy thereof, or a synthetic resin such as polyimide. For example, the bobbin 337b may be implemented using a polyimide film having relatively good heat dissipation performance and being relatively lightweight.

[0496] The wire barrel 337b may have a circular shape or an oval shape, but the embodiments of the present disclosure are not limited thereto. For example, the oval shape of the wire barrel 337b may have an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved shape whose width is different from its height, but the embodiments of the present disclosure are not limited thereto. For example, compared with the wire barrel 337b having a circular shape, the wire barrel 337b having an oval shape may improve the sound of the high-pitched vocal cords, and may reduce the heat generation caused by vibration, and thus may have excellent heat dissipation characteristics.

[0497] The wire barrel 337b may be connected (or coupled) to the vibration member 331 by an adhesive member 338. For example, the front surface (or front end portion) of the wire barrel 337b may be attached to the second surface 331s2 of the vibration member 331 by an adhesive member 338. For example, when the sound device 30 includes a heat sink 339 attached to the second surface 331s2 of the vibration member 331, the wire barrel 337b may be connected to the heat sink 339 by an adhesive member 338.

[0498] The coil 337d can be wound around the outer peripheral surface of the bobbin 337b, and can be supplied with a sound generating current (or voice current) from the outside. The coil 337d can drop or rise together with the bobbin 337b. The coil 337d can be called a voice coil. When a current is applied to the coil 337d, based on the applied magnetic field generated around the coil 337d and the external magnetic field generated around the magnet 337c, the entire part of the bobbin 337b can move up and down according to Fleming's left-hand rule, and based on the vertical movement (or vibration) of the bobbin 337b, sound (or sound waves) or vibration can be generated by the vibration of the vibration member 331.

[0499] The damper 337e may be connected between the base frame 337a and the bobbin 337b. For example, the damper 337e may be a tripod, a suspension, an edge, etc., but the embodiments of the present disclosure are not limited thereto.

[0500] According to an embodiment of the present disclosure, one end (or one side) of the damper 337e can be connected to the base frame 337a, and the other end (or the other side) of the damper 337e can be connected to the outer surface of the bobbin 337b. The damper 337e can have a pleated structure between one end (or one side) and the other end (or the other side), and can be contracted and relaxed based on the vertical movement (or vertical movement) of the bobbin 337b to control the vibration of the bobbin 337b. The damper 337e can utilize the restoring force to limit the vibration distance of the bobbin 337b. For example, when the bobbin 337b vibrates a certain distance or more or vibrates a certain distance or less, the bobbin 337b can return (or recover) to its original position by the restoring force of the damper 337e.

[0501] The vibration device 337 according to an embodiment of the present disclosure may further include a center pole 337f and an edge frame 337g.

[0502] The center rod 337f can be accommodated or inserted into the wire barrel 337b, and can be configured to guide the raising or lowering of the wire barrel 337b. For example, since the center rod 337f can be accommodated or inserted into the wire barrel 337b, the outer peripheral surface of the center rod 337f can be surrounded by the wire barrel 337b. For example, the center rod 337f can be a lifting guide or a rod, etc., but the embodiments of the present disclosure are not limited thereto.

[0503] The edge frame 337g can be arranged at the front edge (or front periphery) of the base frame 337a. The edge frame 337g can be configured to support one end of the damper 337e. For example, the damper 337e can be connected between the edge frame 337g and the bobbin 337b. The edge frame 337g according to an embodiment of the present disclosure can be arranged at the front edge of the base frame 337a to have a certain height and a shape identical to the shape of the bobbin 337b. The edge frame 337g according to another embodiment of the present disclosure can be arranged at the front edge of the base frame 337a to have a certain height, and can include a hollow portion of a shape identical to the shape of the bobbin 337b.

[0504] According to an embodiment of the present disclosure, in the vibration device 337, at least a portion of the base frame 337a may be fixed (or supported) or connected (or coupled) to the second housing 312 (or the second plate 312a of the second housing 312) of the housing 310 by a fixing member 336. As an embodiment of the present disclosure, the fixing member 336 may include an adhesive member disposed (or inserted) between at least a portion of the base frame 337a and the second housing 312 (or the second plate 312a of the second housing 312) of the housing 310. As another embodiment of the present disclosure, the fixing member 336 may include a plurality of screws that pass through at least a portion of the base frame 337a and are fastened to the second housing 312 (or the second plate 312a of the second housing 312) of the housing 310.

[0505] The vibration device 337 according to an embodiment of the present disclosure may further include an extension portion 337i.

[0506] The extension portion 337i may extend (or protrude) from the lateral surface of the base frame 337a and may be fixed (or supported) or connected (or coupled) to the second housing 312 of the housing 310 or the second plate 312a of the second housing 312 by the fixing member 336 .

[0507] According to an embodiment of the present disclosure, when the fixing member 336 is an adhesive member (or a second adhesive member), the adhesive member may be disposed or connected between the extension portion 337i of the vibration device 337 and the second housing 312 (or the second plate 312a of the second housing 312). Therefore, the vibration device 337 may be fixed (or supported) or connected (or coupled) to the second housing 312 or the second plate 312a of the second housing 312 by the adhesive member.

[0508] According to another embodiment of the present disclosure, when the fixing member 336 is a plurality of screws (or a plurality of bolts), the plurality of screws may pass through the extension portion 337i of the vibration device 337 and may be fastened to the second housing 312 (or the second plate 312a of the second housing 312). Therefore, the vibration device 337 may be fixed (or supported) or connected (or coupled) to the second housing 312 or the second plate 312a of the second housing 312 by the plurality of screws.

[0509] According to another embodiment of the present disclosure, since the vibration device 337 is disposed (or inserted) between the vibration member 331 and the second housing 312 (or the second plate 312a of the second housing 312), the vibration device 337 should have a relatively thin thickness to thinly reduce the thickness of the sound device 30 or thin the sound device 30, and due to this, when the height (or thickness) of the bobbin 337b is reduced, the sound pressure level may be reduced. Therefore, in order to solve the problem of reduced sound pressure level caused by reduced height of the bobbin 337b, the inventor of the present disclosure has designed a structure in which the area of ​​the damper 337e provided by the bobbin 337b is wider. When the area of ​​the damper 337e is expanded, the inventor of the present disclosure recognizes that the space provided with the wire for applying current to the coil 337c becomes narrower, causing interference between the wire and the damper 337e. Therefore, through various experiments, the inventor of the present disclosure configured the damper 337e formed by a conductor and performing the function of the wire.

[0510] The damper 337e according to another embodiment of the present disclosure may include a metal material electrically connected to the coil 337c. For example, the damper 337e may be configured with a metal material such as stainless steel or copper (Cu), but the embodiments of the present disclosure are not limited thereto.

[0511] The sound device 30 or the vibration device 337 according to the embodiment of the present disclosure may further include a protection member 337h.

[0512] The protective member 337h can be configured to protect the wire drum 337b from the impact or prevent the deformation of the wire drum 337b caused by the impact. The protective member 337h can be configured to protect the wire drum 337b and transmit the vibration of the wire drum 337b to the vibration member 331. The protective member 337h can vibrate together with the wire drum 337b. The protective member 337h can be arranged (or inserted) between the vibration member 331 and the wire drum 337b. The protective member 337h can be arranged on the front surface (or front end portion) of the wire drum 337b to protect the front surface (or front end portion) of the wire drum 337b. The protective member 337h can transmit the rise or fall (or vibration) of the wire drum 337b to the vibration member 331. The protective member 337h according to an embodiment of the present disclosure may have an annular shape connected (attached) to the front surface of the wire barrel 337b, a circular plate shape covering the entire front surface of the wire barrel 337b, or a cap shape surrounding the front surface and upper outer surface of the wire barrel 337b. For example, the protective member 337h may be a wire barrel protective member, an intermediate member, or a wire barrel ring, but the embodiments of the present disclosure are not limited thereto.

[0513] The protection member 337h may be connected (or coupled) to the vibration member 331 through an adhesive member 338. For example, the protection member 337h may be attached to the second surface 331s2 of the vibration member 331 through the adhesive member 338. For example, when the sound device 30 includes a heat sink 339 attached to the second surface 331s2 of the vibration member 331, the protection member 337h may be connected to the heat sink 339 through the adhesive member 338.

[0514] According to an embodiment of the present disclosure, the vibration width (or displacement width or drive width) of the coil-type based vibration device 337 can be relatively larger than the vibration width (or displacement width or drive width) of the piezoelectric-type based vibration device, and therefore, the coil-type based vibration device 337 can enhance the sound characteristics and / or sound pressure level characteristics of the tonal vocal cords including the low-tone vocal cords generated based on the vibration of the vibration member 331.

[0515] Therefore, the sound device 30 according to another embodiment of the present disclosure can vibrate the vibration member 331 to output sound based on the vibration of the coil-type vibration device 337 in which the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords are relatively better than those of the piezoelectric-type vibration device, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the tonal vocal cords including the low-pitched vocal cords.

[0516] According to another embodiment of the present disclosure, the above reference Figures 9 to 16 The piezoelectric vibration devices 333 and 335 described above are changed to (or replaced with) Figure 34 to Figure 36 The coil-type vibration device 337 described above, and therefore, Figures 9 to 16 In the described sound device 30, the sound characteristics and / or the sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be more enhanced, and the sound reproduction band can be more expanded.

[0517] According to another embodiment of the present disclosure, Figures 12 to 21 The connecting member 380 described above is changed to (or replaced with) Figure 24 to Figure 27 In the sound device of the connection member 380 including the first connection member 381 and the second connection member 382, ​​the piezoelectric vibration devices 333 and 335 can be changed to (or replaced by) the piezoelectric vibration devices 333 and 335 described above. Figure 34 to Figure 36 The coil type vibration device 337 is described. In this case, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band can be further enhanced, and the sound reproduction frequency band can be further expanded.

[0518] Fig.37 A vehicle device according to an embodiment of the present disclosure is shown. Fig.38 A vehicle device according to an embodiment of the present disclosure is shown. Fig.39 Shows the settings in Fig.37 and Fig.38 A sound generating device at the roof of the vehicle device shown in FIG. Fig.40 Shows the settings in Fig.37 and Fig.38 The sound generating device at the roof and seat of the vehicle equipment shown in FIG. Figure 1 and Figure 2 To describe Figures 37 to 40 Description.

[0519] Reference Figures 37 to 40 , the vehicle device 10 according to the embodiment of the present disclosure may include a vehicle interior material 130 and one or more sound generating devices 30 - 1 and 30 - 2 .

[0520] According to an embodiment of the present disclosure, the vehicle interior material 130 may include at least one or more of an instrument panel, a pillar interior material (or a pillar trim), a floor interior material (or a floor carpet), a roof interior material (or a roof lining), a door interior material (or a door trim), a handle interior material (or a steering cover), a seat interior material, a trunk interior material (or a rear seat shelf), an overhead console (or an interior lighting interior material), a rearview mirror, a glove box, and a sun visor, but the embodiment of the present disclosure is not limited thereto. One or more sound generating devices 30-1 and 30-2 may vibrate at least one or more of an instrument panel, a pillar interior material (or a pillar trim), a floor interior material (or a floor carpet), a roof interior material (or a roof lining), a door interior material (or a door trim), a handle interior material (or a steering cover), a seat interior material, a trunk interior material (or a rear seat shelf), an overhead console (or an interior lighting interior material), a rearview mirror, a glove box, and a sun visor.

[0521] Reference Figure 1 , Figure 2 , Fig.37 and Fig.38 , one or more sound generating devices 30-1 and 30-2 may be configured at an area between the vehicle interior material 130 and the main structure 110 or an area between the vehicle interior material 130 and the exterior material 120. One or more sound generating devices 30-1 and 30-2 may be provided at an area between the vehicle interior material 130 and the main structure 110 or an area between the vehicle interior material 130 and the exterior material 120, and may indirectly or directly vibrate one or more of the area between the vehicle interior material 130 and the main structure 110 and the area between the vehicle interior material 130 and the exterior material 120 to output sound.

[0522] According to an embodiment of the present disclosure, the protective member 410 (see Fig. 20 and Fig.21) may be disposed closer to at least one of the main structure 110 and the exterior material 120 than the vehicle interior material 130. For example, the protection member 410 at one or more sound generating devices 30-1 and 30-2 may be spaced apart from each of the main structure 110 or the exterior material 120. For example, a space between the main structure 110 and the protection member 410 at one or more sound generating devices 30-1 and 30-2 may also be included. For example, a space between the exterior material 120 and the protection member 410 at one or more sound generating devices 30-1 and 30-2 may also be included. For example, a space between the main structure 110 and the protection member 410 at one or more sound generating devices 30-1 and 30-2 and / or a space between the exterior material 120 and the protection member 410 at one or more sound generating devices 30-1 and 30-2 may also be included.

[0523] The vehicle device 10 according to an embodiment of the present disclosure may include a first sound generating device 30-1 configured to output sound at a main structure 110, an external material 120, and an area between the main structure 110 and a vehicle interior material 130. For example, the first sound generating device 30-1 may be disposed at at least one or more of the main structure 110 and the external material 120, the main structure 110 and the vehicle interior material 130, the external material 120, the vehicle interior material 130, and the external material 120 and the vehicle interior material 130 of the vehicle device 10 to output sound. For example, the vehicle interior material 130 may output sound based on the vibration of one or more first sound generating devices 30-1. For example, the vehicle interior material 130 may be exposed to the inner space IS.

[0524] The first sound generating device 30-1 may include one or more sound generating modules 31A to 31G, and the one or more sound generating modules 31A to 31G are provided at at least one or more of the instrument panel 130A, the pillar inner material 130B, the roof inner material 130C, the door inner material 130D, the seat inner material 130E, the handle inner material 130F, and the floor inner material 130G. For example, the first sound generating device 30-1 may include at least one or more of the first to seventh sound generating modules 31A to 31G (or sound devices, or sound output devices, or sound generating units), and thus, may output sounds of one or more channels.

[0525] Reference Figures 37 to 40The first sound generating module 31A according to an embodiment of the present disclosure may be disposed between the instrument panel 130A and the instrument panel, and may cause the instrument panel 130A to vibrate to output sound based on the vibration of the instrument panel 130A. For example, the first sound generating module 31A may be configured to directly vibrate the instrument panel 130A to output sound based on the vibration of the instrument panel 130A. For example, the first sound generating module 31A may include the above reference Figures 3 to 36 The first sound generating module 31A may be a dashboard speaker.

[0526] According to an embodiment of the present disclosure, at least one or more of the instrument panel panel and the instrument panel 130A may include a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, and a third area (or intermediate area) between the first area and the second area. At least one or more of the instrument panel panel and the instrument panel 130A may include a fourth area inclined to face the passenger seat PS.

[0527] According to an embodiment of the present disclosure, the first sound generating module 31A may be configured to vibrate at least one or more of the first to fourth regions of the instrument panel 130A. For example, the first sound generating module 31A may be provided at each of the first and second regions of the instrument panel 130A, or may be provided at each of the first to fourth regions of the instrument panel 130A. For example, the first sound generating module 31A may be provided at each of the first and second regions of the instrument panel 130A, or may be provided at least one or more of the first to fourth regions of the instrument panel 130A. For example, the first sound generating module 31A may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the first sound generating module 31A configured to vibrate at least one or more of the first to fourth regions of the instrument panel 130A may have the same sound output characteristics or different sound output characteristics. For example, the first sound generating module 31A configured to vibrate each of the first to fourth regions of the instrument panel 130A may have the same sound output characteristics or different sound output characteristics.

[0528] The second sound generating module 31B according to an embodiment of the present disclosure may be disposed between the pillar inner material 130B and the pillar panel, and may vibrate the pillar inner material 130B to output sound based on the vibration of the pillar inner material 130B. For example, the second sound generating module 31B may directly vibrate the pillar inner material 130B to output sound based on the vibration of the pillar inner material 130B. For example, the second sound generating module 31B may include the above-mentioned Figures 3 to 36The sound device 30 is described above, and therefore repeated description is omitted. For example, the second sound generating module 31B may be a column speaker or a tweeter.

[0529] According to an embodiment of the present disclosure, the pillar panel may include a first pillar (or A pillar) disposed at both sides of the front glass window, a second pillar (or B pillar) disposed at both sides of the center of the vehicle body, and a third pillar (or C pillar) disposed at both sides of the rear of the vehicle body. The pillar inner material 130B may include a first pillar inner material 130B1 covering the first pillar, a second pillar inner material 130B2 covering the second pillar, and a third pillar inner material 130B3 covering the third pillar.

[0530] According to an embodiment of the present disclosure, the second sound generating module 31B may be disposed at least one or more of the region between the first pillar and the first pillar inner material 130B1, the region between the second pillar and the second pillar inner material 130B2, and the region between the third pillar and the third pillar inner material 130B3, and thus may vibrate at least one or more of the first pillar inner material to the third pillar inner material 130B1, 130B2, and 130B3. For example, the second sound generating module 31B may be configured to output a sound of about 2kHz to about 20kHz, but the embodiment of the present disclosure is not limited thereto. For example, the second sound generating module 31B may be configured to output a sound of about 150Hz to about 20kHz. For example, the second sound generating module 31B configured to vibrate at least one or more of the first pillar inner material to the third pillar inner material 130B1, 130B2, and 130B3 may have the same sound output characteristics or different sound output characteristics.

[0531] Reference Figures 38 to 40 The third sound generating module 31C according to an embodiment of the present disclosure may be disposed between the roof interior material 130C and the roof frame (or roof panel), and may vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generating module 31C may directly vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generating module 31C may include the above reference Figures 3 to 36 The third sound generating module 31C may be a roof speaker, for example.

[0532] Reference Fig.39, at least one or more third sound generating modules 31C may be provided at the roof interior material 130C. For example, at least six or more third sound generating modules 31C may be provided at the roof interior material 130C, but the embodiments of the present disclosure are not limited thereto.

[0533] According to an embodiment of the present disclosure, at least one or more of the roof frame and the roof interior material 130C covering the roof frame may include a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, a third area corresponding to the area between the driver's seat DS and the passenger seat PS, a fourth area corresponding to the first rear row seat BS1 behind the driver's seat DS, a fifth area corresponding to the second rear row seat BS2 behind the passenger seat PS, a sixth area corresponding to the area between the first rear row seat BS1 and the second rear row seat BS2, and a seventh area between the third area and the sixth area.

[0534] According to an embodiment of the present disclosure, the third sound generating module 31C may be configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C. For example, the third sound generating module 31C may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the third sound generating module 31C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C may have the same sound output characteristics or different sound output characteristics. For example, the third sound generating module 31C configured to vibrate each of the first to seventh regions of the roof interior material 130C may have the same sound output characteristics or different sound output characteristics. For example, at least one or more third sound generating modules 31C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C may be configured to output a sound of about 2 kHz to about 20 kHz, and other third sound generating modules 31C may be configured to output a sound of about 150 Hz to about 20 kHz. For example, at least one or more third sound generating modules 31C configured to vibrate each of the first to seventh areas of the roof interior material 130C can be configured to output sound from about 2 kHz to about 20 kHz, and other third sound generating modules 31C can be configured to output sound from about 150 Hz to about 20 kHz.

[0535] Reference Fig.38 and Fig.39The fourth sound generating module 31D according to an embodiment of the present disclosure may be disposed between the door frame and the door interior material 130D, and may vibrate the door interior material 130D to output sound based on the vibration of the door interior material 130D. For example, the fourth sound generating module 31D may directly vibrate the door interior material 130D to output sound based on the vibration of the door interior material 130D. According to an embodiment of the present disclosure, the fourth sound generating module 31D may include the above-mentioned Figures 3 to 36 The fourth sound generating module 31D may be a door speaker, for example.

[0536] According to an embodiment of the present disclosure, at least one or more of the door frame and the door interior material 130D may include an upper region, a middle region, and a lower region relative to the height direction Z of the vehicle device 10. For example, the fourth sound generating module 31D may be disposed at at least one or more of the upper region, the middle region, and the lower region between the door frame and the door interior material 130D, and thus may vibrate at least one or more of the upper region, the middle region, and the lower region of the door interior material 130D.

[0537] According to an embodiment of the present disclosure, the upper region of the door interior material 130D may have a relatively small radius of curvature. The fourth sound generating module 31D for vibrating the upper region of the door interior material 130D may include the fourth sound generating module 31D described above with reference to Figure 28 to Figure 32 The fourth sound generating module 31D for vibrating the upper area of ​​the door interior material 130D may include the sound device 30 having the flexible characteristics described above. Fig.12 The sound device 30 of the software component 360 described above or having Figures 14 to 36 The sound device 30 of the connecting member 380 is described.

[0538] According to an embodiment of the present disclosure, the door frame may include a first door frame (or a left front door frame), a second door frame (or a right front door frame), a third door frame (or a left rear door frame), and a fourth door frame (or a right rear door frame). According to an embodiment of the present disclosure, the door interior material 130D may include a first door interior material (or a left front door interior material) 130D1 covering the first door frame, a second door interior material (or a right front door interior material) 130D2 covering the second door frame, a third door interior material (or a left rear door interior material) 130D3 covering the third door frame, and a fourth door interior material (or a right rear door interior material) 130D4 covering the fourth door frame. For example, the fourth sound generating module 31D can be set in at least one or more of the upper area, middle area and lower area between each of the first to fourth door frames and the first to fourth door interior materials 130D1, 130D2, 130D3 and 130D4, and can make at least one or more of the upper area, middle area and lower area of ​​each of the first to fourth door interior materials 130D1, 130D2, 130D3 and 130D4 vibrate.

[0539] According to an embodiment of the present disclosure, the fourth sound generating module 31D configured to vibrate the upper region of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output a sound of about 2 kHz to about 20 kHz, or may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the fourth sound generating module 31D configured to vibrate the upper region of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output a sound of about 2 kHz to about 20 kHz, or may be configured to output a sound of about 150 Hz to about 20 kHz.

[0540] According to an embodiment of the present disclosure, the fourth sound generating module 31D configured to vibrate the middle and lower regions of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output a sound of about 150 Hz to about 20 kHz. The fourth sound generating module 31D configured to vibrate the middle and lower regions of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the fourth sound generating module 31D configured to vibrate the middle and lower regions of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourth sound generating module 31D configured to vibrate the middle and lower areas of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be one or more of a woofer, a mid-woofer, and a subwoofer.

[0541] The sounds outputted from the fourth sound generating module 31D provided at the first door interior material 130D1 and the fourth sound generating module 31D provided at the second door interior material 130D2, respectively, may be combined and outputted. For example, the sounds outputted from at least one or more of the fourth sound generating module 31D provided at the first door interior material 130D1 and the fourth sound generating module 31D provided at the second door interior material 130D2, respectively, may be combined and outputted. In addition, the sounds outputted from the fourth sound generating module 31D provided at the third door interior material 130D3 and the fourth sound generating module 31D provided at the fourth door interior material 130D4, respectively, may be combined and outputted.

[0542] According to an embodiment of the present disclosure, the upper area of ​​each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may include a first upper area adjacent to the instrument panel 130A, a second upper area adjacent to the rear seats BS1, BS2, and BS3, and a third upper area between the first upper area and the second upper area. For example, the fourth sound generating module 31D may be disposed at one or more of the first to third upper areas of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4. For example, the fourth sound generating module 31D may be disposed at the first upper area of ​​each of the first to second door interior materials 130D1, 130D2, 130D3, and 130D4, and may be disposed at one or more of the second upper area and the third upper area of ​​each of the first to second door interior materials 130D1, 130D2. For example, the fourth sound generating module 31D may be disposed at one or more of the first upper region to the third upper region of one or more of the first door interior materials 130D1 to the fourth door interior materials 130D4. For example, the fourth sound generating module 31D configured to vibrate the first upper region of one or more of the first door interior materials 130D1 and the second door interior materials 130D2 may be configured to output a sound of about 2 kHz to about 20 kHz, and the fourth sound generating module 31D configured to vibrate the second upper region and the third upper region of each of the first door interior materials 130D1 and the second door interior materials 130D2 may be configured to output a sound of about 2 kHz to about 20 kHz, or may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the fourth sound generating module 31D configured to vibrate one or more of the second upper area and the third upper area of ​​at least one or more of the first door interior material 130D1 and the second door interior material 130D2 can be configured to output sound of approximately 2 kHz to approximately 20 kHz, or can be configured to output sound of approximately 150 Hz to approximately 20 kHz.

[0543] Reference Fig.37 , Fig.38 and Fig.40The fifth sound generating module 31E according to an embodiment of the present disclosure may be disposed between the...

Claims

1. A sound device, comprising: a housing, the housing comprising an inner space and a protrusion, the protrusion comprising an opening hole connected to the inner space; a sound generating module, the sound generating module being located in the interior space of the housing; as well as a coupling portion including a hollow portion connected to the inner space, the coupling portion being received in the opening hole of the protruding portion, Wherein, the coupling portion is detachably fastened to the protruding portion.

2. The sound device according to claim 1, wherein The coupling portion is fastened to the protruding portion by a hook fastening scheme using a protrusion and a hole.

3. The sound device according to claim 1, in, The protrusion further includes a protrusion at the opening hole, and Wherein, the coupling portion further includes a hole for accommodating the protrusion of the protrusion.

4. The sound device according to claim 1, wherein The protrusion protrudes from the rear surface of the housing to include the opening hole.

5. The sound device according to claim 1, wherein The protrusion comprises: a first protruding wall; a second protruding wall, the second protruding wall being parallel to the first protruding wall; a first protrusion protruding from an inner surface of the first protruding wall to be disposed in the opening hole; and A second protrusion protrudes from an inner surface of the second protruding wall to be disposed in the opening hole.

6. The sound device according to claim 5, in, The protrusion also includes: a third protruding wall connected to one lateral surface of each of the first protruding wall and the second protruding wall; and a fourth protruding wall connected to the other lateral surface of each of the first protruding wall and the second protruding wall, and Wherein, the opening hole is surrounded by the first protruding wall, the second protruding wall, the third protruding wall and the fourth protruding wall.

7. The sound device according to claim 6, wherein: The protrusion also includes: one or more first slits at the first protruding wall; and One or more second slits at the second protruding wall.

8. The sound device according to claim 5, wherein: Each of the first protruding wall and the second protruding wall is elastically deformed in a direction approaching a central portion of the opening hole or in a direction away from the central portion of the opening hole.

9. The sound device according to claim 5, wherein: The coupling portion comprises: a hollow member received in the opening hole of the protruding portion, the hollow member including the hollow portion; a first hole configured at one side portion of the hollow member to accommodate the first protrusion; and A second hole is provided at the other side portion of the hollow member facing the one side portion of the hollow member to accommodate the second protrusion.

10. The sound device according to claim 9, wherein The coupling portion further includes a latch member connected to one outer surface of the hollow member to have a certain width.

11. The sound device according to claim 10, wherein The coupling portion also includes a chamfered portion having a non-rectangular shape between the hollow member and the latch member.

12. The sound device according to claim 1, wherein The sound generation module comprises: a vibration member at the housing; and A vibration device is connected to the housing to vibrate the vibration member.

13. The sound device according to claim 12, in, The vibration device includes one or more vibration generators, and Wherein, each of the one or more vibration generators comprises: a vibration portion, the vibration portion comprising a piezoelectric material; a first electrode portion located on a first surface of the vibration portion; and A second electrode portion is provided on a second surface of the vibration portion that is different from the first surface.

14. The sound device according to claim 12, wherein: The vibration device is a coil type vibration device.

15. The sound device according to claim 12, wherein: The vibration device comprises: a base frame connected to the housing; a magnetic circuit portion provided at the base frame, the magnetic circuit portion including a bobbin connected to the vibration member; and A damper is connected between the base frame and the bobbin.

16. A vehicle device comprising: Internal materials exposed to the interior space; as well as one or more sound generating devices disposed at the inner material to output sound to the inner space, Wherein, the one or more sound generating devices include a sound device according to any one of claims 1 to 15.

17. The vehicle device according to claim 16, in, The inner material includes a hole that receives the protrusion of the housing, wherein the protrusion passes through a hole in the inner material, The coupling portion disposed at the sound device is fastened to the protrusion at the inner space.

18. The vehicle apparatus according to claim 16, further comprising: a soft member between the shell and the inner material, wherein the inner material includes a hole for receiving the protrusion of the housing, wherein the soft component comprises a hole for accommodating the protrusion, wherein the protrusion passes through the hole of the inner material and the hole of the soft component, The coupling portion disposed at the sound device is fastened to the protrusion at the inner space.

19. The vehicle apparatus according to claim 16, further comprising: a connecting member between the shell and the inner material, wherein the connecting member comprises a hole for receiving the protrusion of the housing, wherein the protrusion passes through the hole of the connecting member, The coupling portion disposed at the sound device is fastened to the protrusion at the inner space.

20. The vehicle device according to claim 16, in, The interior material includes at least one or more of the following: an instrument panel; a pillar interior material; a roof interior material; a door interior material; a seat interior material; a handle interior material; a floor interior material; a trunk interior material; an overhead console; a rearview mirror; a glove box; a decorative member; and a sun visor, and Wherein, the one or more sound generating devices are configured to vibrate at least one or more of the following to generate sound: the dashboard; the pillar interior material; the roof interior material; the door interior material; the seat interior material; the handle interior material; the floor interior material; the trunk interior material; the overhead console; the rearview mirror; the glove box; the decorative component; and the sun visor.

21. A vehicle device comprising: Internal materials exposed to the interior space; as well as One or more sound devices according to any one of claims 1 to 15 are provided at the inner material to output sound to the inner space.

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