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 sound generation module including a vibration member and a vibration device disposed at the vibration member; and a housing connected to the vibrating member at which a portion of the vibrating device may be accommodated with an internal space therebetween.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2023-0123002 filed in Korea on September 15, 2023, the entire contents of which are expressly incorporated by reference into this application. Technical Field

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

[0004] The vehicle may include a sound device that outputs sound based on an audio signal output from a multimedia device, and such a sound device may include 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 device.

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

[0007] One or more aspects of the present disclosure are 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] 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 through practice of the inventive concepts provided herein. Other features, advantages, and aspects of the present disclosure may be realized and obtained through structures specifically pointed out in the written description, or structures that can be derived from the written description and its claims and drawings.

[0009] To achieve these advantages and aspects and other advantages and aspects of the present disclosure, as embodied and generally described herein, in one or more aspects, a sound device may include: a sound generating module, the sound generating module including a vibration member and a vibration device configured at the vibration member; and a housing connected to the vibration member, with an internal space therebetween, and a portion of the vibration device may be accommodated at the vibration member.

[0010] In one or more aspects, a vehicle device may include: an interior material exposed to an interior space; and one or more sound generating devices arranged on the interior material to output sound to the interior space, the one or more sound generating devices may include a sound device, and the sound device may include: a sound generating module, the sound generating module includes a vibration component and a vibration device configured at the vibration component; and a shell connected to the vibration component, with an internal space between them, and a portion of the vibration device can be accommodated at the vibration component.

[0011] 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.

[0012] Details of other exemplary embodiments are included in the detailed description and drawings of the present disclosure.

[0013] In 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.

[0014] In 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.

[0015] In a sound device and a vehicle device including the sound device according to one or more embodiments of the present disclosure, a vibration member including one or more holes may be configured, and thus, sound characteristics and / or sound pressure level characteristics may be enhanced in a vocal cord including low-pitched vocal cord sounds.

[0016] In 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.

[0017] In the sound device and the vehicle device including the same according to one or more embodiments of the present disclosure, the protruding portion and the coupling portion may be configured as one portion (or one component), thereby achieving a single material effect.

[0018] In 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 in the sound device, the sound characteristics and / or the sound pressure level characteristics can be further enhanced, the sound reproduction band can be expanded, and the sound device can be protected.

[0019] In the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, since the connecting member is configured between the vehicle interior material and the casing, the sound characteristics and / or sound pressure level characteristics can be enhanced in the vocal cords including low-pitched vocal cord sounds.

[0020] In a sound device and a vehicle device including the sound device according to one or more embodiments of the present disclosure, since a coupling portion having a non-rectangular shape is configured, sound characteristics and / or sound pressure level characteristics can be enhanced in a tonal vocal band including low-pitched vocal band sounds, and peaks and / or dips in a high-pitched vocal band can be improved, thereby enhancing a balance characteristic of the sound pressure level or a flatness characteristic of the sound pressure level.

[0021] In a sound device and a vehicle device including the sound device according to one or more embodiments of the present disclosure, because the width and / or length of the coupling portion is set and configured, the sound characteristics and / or sound pressure level characteristics can be enhanced in the tonal vocal band including the low-pitched vocal band sound, 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.

[0022] In the sound device and the vehicle device including the same according to one or more embodiments of the present disclosure, since the connecting members having different thicknesses are included and configured, the sound characteristics and / or the sound pressure level characteristics can be more enhanced in the low-pitched vocal range.

[0023] 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.

[0024] 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

[0025] The accompanying drawings, which are included to provide a further understanding of the disclosure, 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.

[0026] Figure 1 A sound device for a vehicle according to an embodiment of the present disclosure is shown.

[0027] Figure 2 A sound apparatus for a vehicle according to another embodiment of the present disclosure is shown.

[0028] Figure 3 A sound device according to an embodiment of the present disclosure is shown.

[0029] Figure 4 According to the embodiments of the present disclosure Figure 3 An exploded perspective view of the sound device shown.

[0030] Figure 5 is a diagram showing an embodiment according to the present disclosure Figure 3 and Figure 4 A cross-sectional view of a vibration device of a sound generating module is shown.

[0031] Figure 6 Another embodiment according to the present disclosure is shown. Figure 5 The vibration part shown.

[0032] Figure 7 Another embodiment according to the present disclosure is shown. Figure 5 The vibration part shown.

[0033] Figure 8 A sound device according to another embodiment of the present disclosure is shown.

[0034] Fig. 9 A sound device according to another embodiment of the present disclosure is shown.

[0035] Fig.10 A sound device according to another embodiment of the present disclosure is shown.

[0036] Fig.11 is a diagram showing an embodiment according to the present disclosure Figure 8 A cross-sectional view of a vibration device of a sound generating module is shown.

[0037] Fig.12 A sound device according to another embodiment of the present disclosure is shown.

[0038] Fig.13 A sound device according to another embodiment of the present disclosure is shown.

[0039] Fig.14 A sound device according to another embodiment of the present disclosure is shown.

[0040] Fig.15 According to another embodiment of the present disclosure Fig.12 An exploded perspective view of the sound device shown.

[0041] Fig.16 A sound device according to another embodiment of the present disclosure is shown.

[0042] Fig.17 A sound device according to another embodiment of the present disclosure is shown.

[0043] Fig.18 A sound device according to another embodiment of the present disclosure is shown.

[0044] Fig.19 A sound device according to another embodiment of the present disclosure is shown.

[0045] Fig. 20 A sound device according to another embodiment of the present disclosure is shown.

[0046] Fig.21 Another embodiment according to the present disclosure is shown. Fig. 20 The method of connecting the sound device to the coupling portion is shown in FIG.

[0047] Fig. 22 A sound device according to another embodiment of the present disclosure is shown.

[0048] Fig.23 Another embodiment according to the present disclosure is shown. Fig. 22 The method of connecting the sound device to the coupling portion is shown in FIG.

[0049] Fig.24 A sound device according to another embodiment of the present disclosure is shown.

[0050] Fig.25 According to another embodiment of the present disclosure Fig.24 An exploded perspective view of the sound device shown.

[0051] Fig.26A sound device according to another embodiment of the present disclosure is shown.

[0052] Fig. 27 A sound device according to another embodiment of the present disclosure is shown.

[0053] Fig.28 The interior of a sound device according to another embodiment of the present disclosure is shown.

[0054] Fig.29 A sound device according to another embodiment of the present disclosure is shown.

[0055] Fig.30 A sound device according to another embodiment of the present disclosure is shown.

[0056] Fig.31 A sound device according to another embodiment of the present disclosure is shown.

[0057] Fig.32 A sound device according to another embodiment of the present disclosure is shown.

[0058] Fig.33 A sound device according to another embodiment of the present disclosure is shown.

[0059] Fig.34 A coupling portion according to another embodiment of the present disclosure is shown.

[0060] Fig.35 A sound device according to another embodiment of the present disclosure is shown.

[0061] Fig.36 Another embodiment according to the present disclosure is shown. Fig.35 The method of connecting the sound device to the coupling portion is shown in FIG.

[0062] Fig.37 A sound device according to another embodiment of the present disclosure is shown.

[0063] Fig.38 Another embodiment according to the present disclosure is shown. Fig.37 The method of connecting the sound device to the coupling portion is shown in FIG.

[0064] Fig.39 A vibration device according to an embodiment of the present disclosure is shown.

[0065] Fig.40 A vibration device according to another embodiment of the present disclosure is shown.

[0066] Fig.41A vehicle device according to an embodiment of the present disclosure is shown.

[0067] Fig.42 A vehicle device according to an embodiment of the present disclosure is shown.

[0068] Fig.43 The embodiment according to the present disclosure is shown in Fig.41 and Fig.42 A sound generating device is shown on the roof of a vehicle device.

[0069] Fig.44 The embodiment according to the present disclosure is shown in Fig.41 and Fig.42 Sound generating devices at the roof and seats of the vehicle equipment shown.

[0070] Fig.45 Sound output characteristics of devices according to the embodiments and experimental examples of the present disclosure are shown.

[0071] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and / or convenience, the sizes, lengths, and thicknesses of layers, regions, and elements and their descriptions may be exaggerated. DETAILED DESCRIPTION

[0072] Reference is now made in detail to various aspects of the present disclosure, examples of which may be illustrated in the accompanying drawings. In the following description, when a detailed description of a known function, structure, or configuration may unnecessarily obscure various aspects of the present disclosure, the detailed description of such known function or configuration may be omitted for the sake of brevity. In addition, repeated descriptions may be omitted for the sake of brevity. The described progression of processing steps and / or operations is a non-limiting example.

[0073] The order of steps and / or operations is not limited to the order set forth herein, and may be changed to occur in an order different from that described herein, except for steps and / or operations that must occur in a particular order. In one or more examples, two operations in succession may be performed substantially simultaneously, or the two operations may be performed in a reverse order or in a different order depending on the functions or operations involved.

[0074] Unless otherwise specified, even if the same reference numerals are shown in different figures, they may refer to the same elements throughout. In one or more aspects, unless otherwise specified, the same elements (or elements with the same names) in different figures may have the same or substantially the same functions and properties. The names of the various elements used in the following description are selected for convenience only and may therefore differ from the names used in the actual product.

[0075] By referring to the various aspects described in the accompanying drawings, the advantages and features of the present disclosure and the implementation methods thereof 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.

[0076] The shapes (e.g., size, length, width, height, thickness, position, radius, diameter, and area), dimensions, ratios, angles, numbers, etc. disclosed herein, including those shown in the accompanying drawings, are merely examples, and therefore, the present disclosure is not limited to the details shown. Any implementation described herein as an "example" is not necessarily to be construed as superior or preferred over other implementations. However, it should be noted that the relative sizes of the components shown in the accompanying drawings are part of the present disclosure.

[0077] When terms such as "including", "having", "comprising", "containing", "consisting of", "made of", "formed of", etc. are used with respect to one or more elements, one or more other elements may be added unless terms such as "only" etc. are used. The terms used in the present disclosure are only used to describe example aspects and are not intended to limit the scope of the present disclosure. Unless the context clearly indicates otherwise, a term in the singular form may include a plural form.

[0078] Unless otherwise stated, the word "exemplary" is used to mean serving as an example or illustration. An aspect is an example aspect. "Aspect," "example," etc. should not be construed as superior or preferred over other implementations. Unless otherwise stated, an aspect, example, example aspect, etc. may refer to one or more aspects, one or more examples, one or more example aspects, etc. In addition, the term "may" encompasses all meanings of the term "can."

[0079] In one or more aspects, unless otherwise expressly stated, an element, feature, or corresponding information (e.g., level, range, dimension, size, etc.) is interpreted as including an error or tolerance range, even if no explicit description of such error or tolerance range is provided. The error or tolerance range may be caused by various factors (e.g., process factors, internal or external influences, noise, etc.). When interpreting a numerical value, unless otherwise expressly stated, the value is interpreted as including an error range.

[0080] When describing a positional relationship, when describing the positional relationship between two components (e.g., layers, films, regions, components, parts, etc.) using, for example, “on”, “over”, “on top of”, “over”, “under”, “above”, “below”, “near”, “near”, “near”, “beside”, “near”, “on the side or on”, etc., one or more other components may be located between the two components unless more restrictive terms such as “immediately adjacent”, “directly” or “close to” are used. For example, when a structure is described as being relative to another structure as follows: When referring to the positions: "on", "above", "on the top of", "above", "below", "above", "below", "below", "near", "close", "adjacent", "beside", "near", "to the side or on", etc., the description should be interpreted to include the situation where the structures are in contact with each other and the situation where one or more additional structures are disposed or inserted therebetween. In addition, the terms "front", "back", "back", "left", "right", "top", "bottom", "downward", "upward", "upper", "lower", "up", "down", "column", "row", "vertical", "horizontal", etc. refer to any reference system.

[0081] Spatially relative terms such as "below", "below", "lower", "above", "upper", etc. can be used to describe the correlation between various elements (e.g., layers, films, regions, components, parts, etc.) as shown. Spatially relative terms should be understood as terms that include different orientations of elements in use or operation in addition to the orientations depicted in the drawings. For example, if the elements shown in the drawings are turned over, the elements described as being "below" or "below" other elements will be oriented to be "above" the other elements. Therefore, the term "below" (which is an example term) can include all directions of "above" and "below". Similarly, the exemplary terms "above" or "on" can include both directions of "above" and "below".

[0082] When describing a temporal relationship, when the temporal order is described as, for example, "after", "subsequently", "next", "before", "previously", "in front of", etc., discontinuity or non-sequential situations may be included, and thus one or more other events may occur in between, unless more restrictive terms such as "just after", "immediately" or "directly" are used.

[0083] Terms such as "below," "lower," "above," "upper," etc. may be used herein to describe the relationship between elements shown in the drawings. It should be understood that these terms are spatially relative and based on the orientation depicted in the drawings.

[0084] It should be understood that although the terms "first", "second", etc. can be used to describe various elements (e.g., layers, films, regions, components, parts, etc.) in this article, these elements should not be limited by these terms, for example, not limited by any particular order, priority or number of elements. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, the first element can be referred to as the second element, and similarly, the second element can be referred to as the first element. In addition, without departing from the scope of the present disclosure, the first element, the second element, etc. can be arbitrarily named according to the convenience of those skilled in the art. For the sake of clarity, the function or structure of these elements (e.g., the first element, the second element, etc.) is not limited by the ordinal number or name in front of the element. In addition, the first element can include one or more first elements. Similarly, the second element, etc. can include one or more second elements, etc.

[0085] 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, order or number of the elements.

[0086] When an element (for example, a layer, a film, a region, a component, a part, etc.) is described as being “connected,” “coupled,” “attached,” “adhered,” etc. to another element, unless otherwise specified, the element may not only be directly connected, coupled, attached, adhered, etc. to the other element but may also be indirectly connected, coupled, attached, adhered, etc. to the other element by disposing or inserting one or more intervening elements between the elements.

[0087] When an element (for example, a layer, film, region, component, part, etc.) is “contacted”, “overlapped”, etc. with another element, unless otherwise specified, the element may not only be directly in contact with, overlapped, etc. with the other element, but may also be indirectly in contact with, overlapped, etc. with the other element by having one or more intervening elements disposed or inserted between the elements.

[0088] Phrases where an element (e.g., a layer, a film, a region, a component, a part, etc.) is "provided," "set," etc. in another element may be understood to mean that at least a portion of the element is provided, set, etc. in another element, or that the entire element is provided, set, etc. in another element. Phrases where an element (e.g., a layer, a film, a region, a component, a part, etc.) "contacts," "overlaps," etc. with another element may be understood to mean that at least a portion of the element contacts, overlaps, etc. with at least a portion of another element, the entirety of the element contacts, overlaps, etc. with at least a portion of another element, or at least a portion of the element contacts, overlaps, etc. with the entirety of another element.

[0089] Terms such as "row" or "direction" should not be interpreted solely based on the geometric relationship of the corresponding rows or directions being parallel or perpendicular to each other. Such terms may refer to a wider range of lines or directions: within the wider range of lines or directions, the components of the present disclosure can operate functionally. For example, terms "first direction", "second direction", etc., such as directions parallel or perpendicular to the "x-axis", "y-axis", or "z-axis", should not be interpreted solely based on the geometric relationship of the corresponding directions being parallel or perpendicular to each other, and may refer to directions with wider directivity within the range within which the components of the present disclosure can operate functionally.

[0090] 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, each of the phrases "at least one of the first, second, or third item" and "at least one of the first, second, and third items" can mean: (i) a combination of items provided by one or more of the first, second, and third items; or (ii) only one of the first, second, and third items.

[0091] The expression of a first element, a second element “and / or” a third element should be understood to cover one of the first element, the second element, and the third element, and any and all combinations of the first element, the second element, and the third element. By way of example, A, B, and / or C covers only A; only B; only C; any one of A, B, and C (e.g., A, B, or C); some combinations of A, B, and C (e.g., A and B; A and C; or B and C); and all of A, B, and C. In addition, the expression “A / B” may be understood as A and / or B. For example, the expression “A / B” may refer to only A; only B; A or B; or A and B.

[0092] In one or more aspects, unless otherwise stated, for convenience, the terms "between" and "wherein" can be simply used interchangeably. For example, the expression "between multiple elements" can be understood as in multiple elements. In another example, the expression "in multiple elements" can be understood as between multiple elements. In one or more examples, the number of elements can be two. In one or more examples, the number of elements can be more than two. In addition, when an element (e.g., a layer, a film, a region, a component, a part, etc.) is referred to as being "between" at least two elements, the element can be the only element between the at least two elements, or one or more intervening elements can also be present.

[0093] In one or more aspects, unless otherwise specified, for convenience, the phrases "each other" and "mutually" may be simply used interchangeably. For example, the expression "different from each other" may be understood as different from each other. In another example, the expression "different from each other" may be understood as different from each other. In one or more examples, the number of elements involved in the foregoing statements may be two. In one or more examples, the number of elements involved in the foregoing statements may be more than two.

[0094] In one or more aspects, the phrases "one or more of" and "one or more of" may be used simply interchangeably for convenience unless otherwise indicated.

[0095] The term "or" means an inclusive or rather than an exclusive or. For example, unless otherwise specified or clear from the context, the statement "x uses a or b" means any of the natural inclusive permutations. For example, "a or b" may mean "a", "b", or "a and b". For example, "a, b or c" may mean "a", "b", "c", "a and b", "b and c", "a and c", or "a, b, and c".

[0096] The features of the various aspects of the present disclosure may be coupled or combined in part or in their entirety, may be technically associated with each other, and may be operated, linked or driven together in various ways. The various aspects of the present disclosure may be implemented or performed independently of one another, or may be implemented or performed together with a common reliance or related relationship. In one or more aspects, the parts of each device according to the various aspects of the present disclosure may be operationally coupled and configured.

[0097] Unless otherwise defined, the terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which the exemplary aspects belong. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having, for example, a meaning consistent with their meaning in the relevant technical context, and should not be interpreted as an idealized or overly formal meaning, unless otherwise explicitly defined herein.

[0098] The terms used herein have been selected as common terms in the relevant technical field; however, other terms may exist according to the development and / or change of technology, convention, preference of technicians, etc. Therefore, the terms used herein should not be understood as limiting the technical concept, but should be understood as examples of terms used to describe exemplary aspects.

[0099] In addition, in certain cases, the terms may be arbitrarily selected by the applicant, and in this case, their detailed meanings are described herein. Therefore, the terms used in this article should be understood not only based on the term names, but also based on the meanings of the terms and their contents.

[0100] The “X-axis direction”, “Y-axis direction”, and “Z-axis direction” should not be interpreted only by the geometric relationship of being vertical to each other, and may have broader directivities within the range in which the elements of the present disclosure can function functionally.

[0101] In the following description, various example aspects of the present disclosure are described in detail with reference to the accompanying drawings. With respect to the reference numerals of the elements of each of the accompanying drawings, the same elements may be shown in other drawings, and unless otherwise specified, the same reference numerals may refer to the same elements. The same or similar elements may be represented by the same reference numerals even if they are depicted in different drawings.

[0102] In addition, for ease of description, the proportions, dimensions, sizes and thicknesses of each of the elements shown in the drawings may be different from the actual proportions, dimensions, sizes and thicknesses, and therefore, aspects of the present disclosure are not limited to the proportions, dimensions, sizes and thicknesses shown in the drawings.

[0103] 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. All components of each sound device according to all embodiments of the present disclosure are operably coupled and configured.

[0104] Reference Figure 1The sound device 30 according to the embodiment of the present disclosure may be disposed or equipped at an interior portion of the vehicle 10 to output the sound S to an interior space (or indoor space) IS of the vehicle (or vehicle device) 10 .

[0105] 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.

[0106] The vehicle 10 according to an embodiment of the present disclosure may include a primary structure 110 .

[0107] 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.

[0108] The vehicle 10 according to the embodiment of the present disclosure may further include an exterior material 120 .

[0109] 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.

[0110] The exterior materials (or vehicle exterior materials) 120 of the vehicle 10 may include a hood panel, a front fender panel, an instrument 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.

[0111] 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.

[0112] 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.

[0113] The vehicle interior material 130 may include all elements (or parts) configuring the interior portion 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.

[0114] 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.

[0115] The vehicle interior material 130 according to an embodiment of the present disclosure may be configured to be exposed at an interior portion and / or interior space IS of the vehicle 10 in the interior portion and / or 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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 portion or the inner space IS of the vehicle 10. 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.

[0120] 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.

[0121] The vehicle 10 or the sound device 30 according to the embodiment of the present disclosure may include at least one or more sound devices. The sound device 30 may vibrate the corresponding vehicle interior material 130 by at least one or more of the at least one or more sound devices 30 disposed at 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.

[0122] According to an embodiment of the present disclosure, the sound device 30 may be configured in an area between the vehicle interior material 130 and the main structure 110, or in an area between the vehicle interior material 130 and the exterior material 120. The sound device 30 may be disposed in an area between the vehicle interior material 130 and the main structure 110, or in 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.

[0123] According to an embodiment of the present disclosure, the sound device 30 may be disposed at one or more of the area between the main structure 110 and the exterior material 120, the area 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 between the main structure 110 and the exterior material 120, the area 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 between the main structure 110 and the exterior material 120, the area 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 area between the main structure 110 and the exterior material 120, the area between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130 to output sound. For example, the sound device 30 may be disposed in an 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 disposed at at least one or more of the exterior material 120, the vehicle interior material 130, and the area between the exterior material 120 and the vehicle interior material 130. According to an embodiment of the present disclosure, at least one or more of the exterior material 120, the vehicle interior material 130, and the area between the exterior material 120 and the vehicle interior material 130 may output sound based on the vibration of the sound device 30.

[0124] The sound device 30 according to an embodiment of the present disclosure may output sound in an area between the exterior material 120 and the vehicle interior material 130 of the vehicle 10. 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.

[0125] 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, etc. configured to output sound. For example, each of the exterior material 120 and the vehicle interior material 130 configured to output sound may have a size larger than 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 embodiments of the present disclosure are not limited thereto.

[0126] 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 Therefore, in the following description, repeated descriptions of elements other than the vehicle interior material may be omitted or will be briefly given.

[0127] Reference Figure 2 , the sound device 30 according to another embodiment of the present disclosure may vibrate the vehicle interior material 130 including one or more materials of metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather to output a sound S.

[0128] The vehicle interior material 130 according to another embodiment of the present disclosure may include a base member 131 and an outer 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 outer member 133 may be a surface member, 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.

[0129] 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 an interior portion 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.

[0130] 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.

[0131] The external member 133 may be disposed on the base member 131. For example, the external member 133 may be disposed to cover the base member 131. The external 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 external member 133 may be disposed on or coupled to the front surface (or interior surface) of the base member 131 exposed at the interior space IS of the vehicle 10.

[0132] According to the vehicle interior material 130 or the external member 133 of the embodiment of the present disclosure, any one or more materials of plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, carbon and metal may be included, but the embodiment of the present disclosure is not limited thereto. For example, the external member 133 may be a fiber material. For example, the external 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 external 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 external member 133 including the fiber material may be a fabric member, but the embodiment of the present disclosure is not limited thereto.

[0133] 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.

[0134] 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 exterior member 133 to output the sound S to the interior portion of the vehicle 10 and / or the inner space IS.

[0135] 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 .

[0136] 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 declines 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. The peak may be a phenomenon that the sound pressure level bounces at a specific frequency, and the decline may be a phenomenon that a low sound pressure level is generated as the occurrence of the sound with a specific frequency decreases. The flatness of the sound characteristic may be the deviation level between the highest sound pressure and the lowest sound pressure.

[0137] 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.

[0138] Figure 3 A sound device according to an embodiment of the present disclosure is shown. Figure 4 According to the embodiments of the present disclosure Figure 3 Exploded perspective view of.

[0139] Reference Figure 3 and Figure 4 The sound device 30 according to an embodiment of the present disclosure may include a housing 310 and a sound generating module 330. The sound device 30 may be configured to vibrate a vibrating object or a vehicle 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.

[0140] The sound device 30 may be configured to be connected (or coupled) to the vehicle structure. Figure 1 or Figure 2 A portion of 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.

[0141] The sound generation module 330 can vibrate the vehicle interior material 130. Therefore, the sound generation module 330 can generate sound based on the vibration of the vehicle interior material 130. For example, the sound generation module 330 can be configured to indirectly vibrate the vehicle interior material 130. The sound generation module 330 can generate or output sound or vibration based on the drive (or vibration or displacement) of the vehicle interior material 130. For example, the sound generation module 330 can be configured to vibrate the housing 310 to vibrate the vehicle interior material 130. For example, the sound generation module 330 can be a sound generation unit, a sound generation member, a sound reproduction module, a sound reproduction 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.

[0142] 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 .

[0143] The vibration member 331 may generate vibration or may output sound (or sound waves) based on the displacement (or drive) of the vibration devices 333 and 335. For example, the vibration member 331 may be a plate, a vibration plate, 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 embodiments of the present disclosure are not limited thereto.

[0144] The vibration member 331 may include a single non-metallic material or a composite non-metallic material. For example, the single non-metallic material or the composite non-metallic material of the vibration member 331 may include one or more materials 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.

[0145] The vibration member 331 according to an embodiment of the present disclosure may be configured with a plastic material, for example, a plastic material or a styrene material, but the embodiment of the present disclosure is not limited thereto.

[0146] 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.

[0147] The styrene material of the vibration member 331 may be ABS material. The ABS material may be acrylonitrile, butadiene, and styrene.

[0148] The vibration member 331 according to an embodiment of the present disclosure 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.

[0149] According to an embodiment of the present disclosure, the vibration member 331 may include a quadrilateral shape (or a square shape), but the embodiment of the present disclosure is 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 331s1 and a second surface 331s2 different from (or opposite to) the first surface 331s1. For example, in the vibration member 331, the first surface 331s1 may be a rear surface, a back side surface, or a lower surface, and the second surface 331s2 may be a front surface or an upper surface.

[0150] The vibration devices 333 and 335 may be configured to vibrate the vibration member 331. For example, the vibration devices 333 and 335 may be provided or configured at the vibration member 331. The vibration devices 333 and 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.

[0151] 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.

[0152] The vibration devices 333 and 335 according to the embodiments of the present disclosure may be integrated (or configured) with the vibration member 331. For example, the vibration devices 333 and 335 may be directly coupled (or attached) at the vibration member 331. For example, in the absence of a separate bonding member or a separate intermediate member (or medium), the vibration devices 333 and 335 may be directly coupled (or attached) at the vibration member 331. For example, the vibration devices 333 and 335 and the vibration member 331 may be configured as one that is coupled or physically coupled to each other without a separate bonding member or a separate intermediate member (or medium). For example, the vibration member 331 may be a vibration plate integrated with the vibration device, but the embodiments of the present disclosure are not limited thereto. Therefore, when the vibration devices 333 and 335 are vibrated (or displaced or driven), the vibration of the vibration devices 333 and 335 may be transmitted to the vibration member 331 without loss, and therefore, the sound pressure level characteristics of the sound generated by the vibration of the vibration member 331 may be enhanced. In addition, since a separate bonding member or a separate intermediate member for coupling (or bonding) the vibration devices 333 and 335 and the vibration member 331 to each other is omitted, the manufacturing process of the sound device can be simplified and the manufacturing cost of the sound device can be reduced.

[0153] The vibration devices 333 and 335 according to another embodiment of the present disclosure may be coupled (or attached) at the vibration member 331 through an adhesive member. For example, when the vibration devices 333 and 335 are coupled (or attached) at the vibration member 331 through an adhesive member, the sound pressure level characteristics of the sound generated by the vibration of the vibration member 331 may be reduced due to the vibration transmission loss caused by the adhesive member and the vibration transmission loss caused by bubbles generated between the adhesive member and the vibration member 331.

[0154] According to an embodiment of the present disclosure, a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be configured to be accommodated (or inserted) into the vibration member 331. Without a separate bonding member or a separate intermediate member (or medium), a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be directly accommodated (or inserted) into a portion of the vibration member 331. Therefore, without a separate bonding member or a separate intermediate member (or medium), a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be integrated with the vibration member 331.

[0155] According to an embodiment of the present disclosure, the vibration member 331 may be configured to accommodate (or insert) a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335. For example, the vibration member 331 may include one or more groove portions 331a and 331b. For example, a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be accommodated (or inserted) into one or more groove portions 331a and 331b of the vibration member 331. For example, in the absence of a separate adhesive member or a separate intermediate member (or medium), a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be accommodated (or inserted) into one or more groove portions 331a and 331b of the vibration member 331. Therefore, in the absence of a separate adhesive member or a separate intermediate member (or medium), a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may be integrated with one or more groove portions 331a and 331b of the vibration member 331.

[0156] According to one embodiment of the present disclosure, in the case where the vibration member 331 is configured with a plastic material, the vibration member 331 may be coupled to (or deposited on) a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 in a semi-cured state, and then, may be cured so that the vibration member 331 may be integrated with or joined to a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335, but the embodiments of the present disclosure are not limited thereto. For example, a portion of the vibration member 331 may be melted by heating, and may be deposited or joined to a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335, and thus, without a separate adhesive member or a separate intermediate member (or medium), a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 or a portion of the vibration member 331 may be integrated with or joined to each other. For example, a portion of the vibration member 331 accommodating (or inserting) a portion of the sound generating module 330 or a portion of the vibration devices 333 and 335 may configure one or more groove portions 331 a and 331 b of the vibration member 331 .

[0157] The sound generation module 330 or the vibration devices 333 and 335 according to an embodiment of the present disclosure may include one or more vibration devices or multiple vibration devices. For example, multiple vibration devices 333 and 335 may be provided with a vibration member 331 located therebetween. For example, the sound generation module 330 may include one or more first vibration devices 333 and second vibration devices 335. The first vibration device 333 and the second vibration device 335 may be configured at the vibration member 331.

[0158] Each of the first and second vibration devices 333 and 335 may have the same shape or a different shape as the vibration member 331. According to an embodiment of the present disclosure, each of the first and second vibration devices 333 and 335 may have a smaller rectangular shape than the vibration member 331.

[0159] 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). The short side of each of the first vibration device 333 and the second vibration device 335 may be parallel to the short side of the vibration member 331, and may be spaced apart from the short side of the vibration member 331 to have a second distance (or a second shortest distance). For example, the first distance may be different from the second distance. For example, the first distance may be smaller than the second distance.

[0160] The first vibration device 333 and the second vibration device 335 may be provided with a vibration member 331 located therebetween. 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. For example, the drive signal (or vibration drive signal or voice signal) applied to the first vibration device 333 and the second vibration device 335 may be the same or different. For example, the drive signal 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 vibrate the vibration member 331 independently, 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 the sound pressure level characteristics of the sound device 30 can be enhanced.

[0161] The first vibration device 333 may be disposed at the first surface 331s1 of the vibration member 331. The second vibration device 335 may be disposed at the second surface 331s2 of the vibration member 331.

[0162] According to an 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 331s1 and the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be configured at any one of the first surface 331s1 and the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be connected to the first surface 331s1 of the vibration member 331 or configured at the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be connected to the second surface 331s2 different from the first surface 331s1 or configured at the second surface 331s2 different from the first surface 331s1. 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. For example, the second vibration device 335 and the first vibration device 333 may be stacked vertically.

[0163] According to an embodiment of the present disclosure, a portion of each of the first vibration device 333 and the second vibration device 335 may be accommodated (or configured) at one of the first surface 331s1 and the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be accommodated (or configured) at one of the first surface 331s1 and the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be connected to the first surface 331s1 of the vibration member 331 or accommodated (configured) at the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be connected to a second surface 331s2 different from the first surface 331s1 of the vibration member 331 or accommodated (or configured) at a second surface 331s2 different from the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be connected to the first vibration device 333. For example, the second vibration device 335 may be stacked on the first vibration device 333. For example, the second vibration device 335 and the first vibration device 333 may be vertically stacked.

[0164] The first vibration device 333 may be accommodated (or inserted) into the first groove portion 331a formed (or configured) at the first surface 331s1 of the vibration member 331. For example, a portion of the first vibration device 333 may be accommodated (or inserted) into the first groove portion 331a formed (or configured) at the first surface 331s1 of the vibration member 331. For example, without a separate adhesive member or a separate intermediate member (or medium), a portion of the first vibration device 333 may be accommodated (or inserted) into the first groove portion 331a formed (or configured) at the first surface 331s1 of the vibration member 331.

[0165] The second vibration device 335 may be accommodated (or inserted) into the second groove portion 331b formed (or configured) at the second surface 331s2 of the vibration member 331. For example, a portion of the second vibration device 335 may be accommodated (or inserted) into the second groove portion 331b formed (or configured) at the second surface 331s2 of the vibration member 331. For example, without a separate adhesive member or a separate intermediate member (or medium), a portion of the second vibration device 335 may be accommodated (or inserted) into the second groove portion 331b formed (or configured) at the second surface 331s2 of the vibration member 331.

[0166] In the vibration member 331, the first groove portion 331a may be formed (or configured) concavely from the first surface 331s1. For example, the first groove portion 331a may be formed (or configured) concavely from the first surface 331s1 to have a shape and depth corresponding to a portion of the first vibration device 333. The second groove portion 331b may be formed (or configured) concavely from the second surface 331s2. For example, the second groove portion 331b may be formed (or configured) concavely from the second surface 331s2 to have a shape and depth corresponding to a portion of the second vibration device 335.

[0167] According to one embodiment of the present disclosure, in the case where the vibration member 331 is configured with a plastic material, the first surface 331s1 of the vibration member 331 may be coupled to (or deposited on) a portion of the first vibration device 333 in a semi-cured state, and then, may be cured so that the first surface 331s1 of the vibration member 331 may be integrated with or joined to a portion of the first vibration device 333, and the second surface 331s2 of the vibration member 331 may be coupled to (or deposited on) a portion of the second vibration device 335 in a semi-cured state, and then, may be cured so that the second surface 331s2 of the vibration member 331 may be integrated with or joined to a portion of the second vibration device 335, but the embodiments of the present disclosure are not limited thereto.

[0168] The housing 310 may be adjacent to the sound generating module 330. For example, the housing 310 may include one or more housings (or housing members). The one or more housings may include a first housing (or first housing member) 311 and a second housing (or second housing member) 312. For example, the second housing 312 may be connected to the first housing 311. For example, the housing 310 may be a housing, a shell, an outer shell, a housing member, a housing member, a housing, a sealing member, a sealing cap, a sealing box, a sound box, etc., but the embodiments of the present disclosure are not limited thereto.

[0169] The housing 310 according to an embodiment of the present disclosure may include one or more 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 of a metal material, a plastic, a fiber, a carbon, and a wood material, but the embodiment of the present disclosure is not limited thereto. For example, the housing 310 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 embodiment of the present disclosure is not limited thereto. For example, a styrene material may be an ABS material. The ABS material may be acrylonitrile, butadiene, and styrene. For example, the housing 310 may be configured with the same material as the vibration member 331 or a different material.

[0170] The housing 310 may be configured to be connected (or coupled) to a vibrating object or vehicle interior material 130 (see Figure 1 or Figure 2 ). The housing 310 may be configured to support or accommodate (or receive) the sound generating module 330. The housing 310 may be configured to vibrate based on the driving (or vibration or displacement) of the sound generating module 330. For example, the housing 310 may be configured to vibrate the vehicle interior material 130 based on the driving (or vibration or displacement) of the sound generating module 330.

[0171] The housing 310 may include an internal space (or inner space) 313. The housing 310 may be at the sound generating module 330, with an internal space 313 between them. For example, the housing 310 may be at the rear surface of the sound generating module 330, with an internal space 313 between them. For example, the housing 310 may be connected to the sound generating module 330, with an internal space 313 between them. For example, the housing 310 may be configured to cover the sound generating module 330, with an internal space 313 between them. For example, the housing 310 may be configured to cover the first surface (or rear surface or lower surface) of the sound generating module 330 and the second surface (or front surface or upper surface) of the sound generating module 330 opposite to the first surface. The housing 310 may be configured to support the sound generating module 330, with an internal space 313 between them. For example, the housing 310 may be configured to support or cover each of the first surface (or rear surface or lower surface) and the second surface (or front surface or upper surface) of the sound generating module 330.

[0172] According to an embodiment of the present disclosure, the internal space 313 of the housing 310 may be located between the sound generating module 330 and the housing 310. The internal space 313 may be between the first housing 311 and the second housing 312. For example, the sound generating module 330 may be configured at the internal space 313 of the housing 310. For example, the sound generating module 330 may be configured at the internal space 313 between the first housing 311 and the second housing 312. The vibration devices 333 and 335 of the sound generating module 330 may be at the internal space 313 of the housing 310. For example, the first vibration device 333 and the second vibration device 335 may be at the internal space 313 of the housing 310. For example, the first vibration device 333 may be between the first housing 311 and the vibration member 331. For example, the second vibration device 335 may be between the second housing 312 and the vibration member 331. For example, the internal space 313 may be a accommodating space, a receiving space, a gap space, an air space, a vibration space, a sound space, a sound box, or a sealed space, etc., but the embodiments of the present disclosure are not limited thereto.

[0173] The first housing 311 may be at the sound generating module 330, with an internal space 313 between them. The first housing 311 may be connected to the sound generating module 330, with an internal space 313 between them. The first housing 311 may be disposed on the first surface side (or rear surface side or lower surface side) of the sound generating module 330 or connected to the first surface side (or rear surface side or lower surface side) of the sound generating module 330, with an internal space 313 between them. For example, the first housing 311 may be connected (or coupled) to the peripheral portion of the first surface of the sound generating module 330, with an internal space 313 between them. The first housing 311 may support the first surface of the sound generating module 330, with an internal space 313 between them. The first housing 311 may be disposed (or configured) in the area between the vehicle interior material 130 and the sound generating module 330. For example, the first housing 311 may be configured to surround the first surface of the sound generating module 330. The first housing 311 may be configured to cover the first surface of the sound generating module 330.

[0174] The first housing 311 may vibrate based on the driving (or vibration or displacement) of the sound generating module 330, and the vehicle interior material 130 may vibrate based on the vibration of the first housing 311 to generate or output sound. Therefore, according to an embodiment of the present disclosure, sound may be generated based on the vibration of a vibrating object or the vehicle interior material 130 having a size larger than that of the sound device 30, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the vocal cords including the low-pitched vocal cords generated by the driving (or vibration or displacement) of the sound device 30.

[0175] The second housing 312 may be at the sound generating module 330, with an internal space 313 therebetween. The second housing 312 may be connected to the sound generating module 330, with an internal space 313 therebetween. The second housing 312 may be disposed at or connected to the second surface side (or the front surface side or the upper surface side) opposite to the first surface side of the sound generating module 330, with an internal space 313 therebetween. For example, the second housing 312 may be connected (or coupled) to the peripheral portion of the second surface of the sound generating module 330, with an internal space 313 therebetween. The second housing 312 may support the second surface of the sound generating module 330, with an internal space 313 therebetween. The second housing 312 may be configured to surround 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.

[0176] According to an embodiment of the present disclosure, the second housing 312 may be configured to have an opposite shape to the first housing 311. For example, the first housing 311 and the second housing 312 may be configured to have a symmetrical shape or a symmetrical structure with the sound generating module 330 therebetween.

[0177] Each of the first vibration device 333 and the second vibration device 335 may vibrate the vibration member 331 to generate sound (or sound pressure level or sound wave) in the interior space 313 of the housing 310, the housing 310 may vibrate based on the sound (or sound pressure level or sound wave) in the interior space 313 of the housing 310, and the vehicle interior material 130 may vibrate to generate (or output) sound based on the vibration of the housing 310. For example, the vehicle interior material 130 may vibrate based on the sound (or sound pressure level or sound wave) generated in the interior space 313 of the housing 310 through the vibration of the first housing 311 to generate (or output) sound.

[0178] 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 .

[0179] The vibration member 331 may be disposed at the inner space 313 of the housing 310. The vibration member 331 may be disposed at the inner space 313 of the housing 310 and may be connected to a vibration device. For example, the vibration member 331 may be disposed at the inner space 313 of the housing 310 and may be connected to one or more of the first vibration device 333 and the second vibration device 335. For example, the first vibration device 333 and the second vibration device 335 may be provided with the vibration member 331 located therebetween.

[0180] The vibration member 331 may be disposed or configured in the area between the first shell 311 and the second shell 312 of the shell 310. The vibration member 331 may be configured to divide the internal space 313 of the shell 310 into the first space 313a and the second space 313b. For example, the internal space 313 of the shell 310 may be divided into the first space 313a and the second space 313b by the vibration member 331. For example, the first space 313a of the internal space 313 may be disposed in the area between the first shell 311 of the shell 310 and the vibration member 331, and may be covered by the vibration member 331. The second space 313b of the internal space 313 may be disposed in the area between the second shell 312 of the shell 310 and the vibration member 331, and may be covered by the vibration member 331.

[0181] According to an embodiment of the present disclosure, the first vibration device 333 and the second vibration device 335 may be at different spaces in the inner space 313 of the housing 310. For example, the first vibration device 333 may be at the first space 313a. For example, the second vibration device 335 may be at the second space 313b.

[0182] The first space 313a may be between the sound generating module 330 and the first housing 311. For example, the first space 313a may be between the first surface of the sound generating module 330 and the first housing 311. The first space 313a may be between the first vibration device 333 and the first housing 311. The second space 313b may be between the sound generating module 330 and the second housing 312. For example, the second space 313b may be between a second surface of the sound generating module 330 that is different from (or opposite to) the first surface and the second housing 312. The second space 313b may be between the second vibration device 335 and the second housing 312. For example, the internal space 313 may be a gap space, an air space, a vibration space, a sound space, a sound box, a sealed space, etc., but embodiments of the present disclosure are not limited thereto.

[0183] The sound generation module 330 may generate a sound pressure level (or sound or sound wave) in the internal space 313 of the housing 310 to vibrate the housing 310, and may vibrate the vibrating object or the vehicle interior material 130 based on the vibration of the housing 310. For example, the sound generation module 330 may be configured to vibrate the first housing 311 of the housing 310 to vibrate the vibrating object or the vehicle interior material 130. For example, the sound generation module 330 may generate a sound pressure level (or sound or sound wave) in the internal space 313 of the housing 310 to vibrate the first housing 311, and may vibrate the vibrating object or the vehicle interior material 130 based on the vibration of the first housing 311.

[0184] According to an embodiment of the present disclosure, the first housing 311 may include an opening portion 310 o .

[0185] The opening portion 310o may be configured to pass through (or vertically pass through) the first shell 311 along the thickness direction Z (or vertical direction) of the shell 310. The opening portion 310o may be connected to the internal space 313 (or communicate with the internal space 313). For example, the opening portion 310o may be configured to reduce the air pressure of the internal space 313 of the shell 310. For example, the opening portion 310o may be connected to the first space 313a. The opening portion 310o may be configured to reduce the air pressure of the first space 313a of the first shell 311 or the air pressure of the first space 313a provided between the vibration member 331 and the first shell 311. Therefore, the frequency band of the low-pitched vocal band can be expanded, and thus the sound characteristics of the low-pitched vocal band can be improved. For example, since the pressure (or air pressure) of the first space 313a is reduced by the opening 310o, the displacement (or bending force) of the first vibration device 333 disposed between the vibration member 331 and the first housing 311 can be increased, and therefore, the frequency band of the low-pitched vocal band can be expanded, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band. Therefore, the sound characteristics (or sound pressure level) of the low-pitched vocal band generated based on the vibration of the first vibration device 333 and / or the second vibration device 335 can be improved.

[0186] According to an embodiment of the present disclosure, the opening 310o may be provided to correspond to the central portion of the sound generating module 330. For example, the opening 310o may be provided to correspond to the vibration devices 333 and 335. For example, the opening 310o may be provided to correspond to the central portion of the first vibration device 333 and the second vibration device 335. For example, the opening 310o may be provided to correspond to the central portion of each of the first vibration device 333 and the second vibration device 335. For example, the internal space 313 of the housing 310 may include a space connected to the opening 310o. For example, the internal space 313 of the housing 310 may include a first space 313a connected to the opening 310o.

[0187] According to an embodiment of the present disclosure, the opening portion 310o may have a smaller size than the first vibration device 333. For example, the opening portion 310o may have a smaller size than the first vibration device 333 provided at the vibration member 331. For example, the opening portion 310o may include a line shape having a smaller size (or length) than the first vibration device 333 provided at the vibration member 331. For example, the opening portion 310o may be a hole, a groove, or a slit, but the embodiments of the present disclosure are not limited thereto. For example, the opening portion 310o may be a sound emission portion, a first sound emission port, a sound output portion, a sound output port, a sound output hole, a duct hole, or a vent hole, but the embodiments of the present disclosure are not limited thereto.

[0188] The opening portion 310o may be a space in which sound waves generated based on the vibration of the sound generating module 330 propagate (or transfer) to the interior space IS of the vehicle 10. For example, the vibration of the sound generating module 330 may be transferred to a vibrating object or the interior space IS of the vehicle 10 through the opening portion 310o. For example, sound waves (or sounds) based on the vibration of the sound generating module 330 may be transferred (or output or emitted) to the interior space IS of the vehicle 10 through the opening portion 310o. Therefore, the vibration width (or displacement width) of the vibration member 331 based on the vibration of the sound generating module 330 may be increased, and therefore, the sound characteristics and / or sound pressure level characteristics generated based on the vibration of the vibration member 331 may be enhanced.

[0189] The first housing 311 including the opening portion 310o may be disposed closer to the vehicle interior material 130 than the second housing 312. For example, the first housing 311 including the opening portion 310o may be disposed closer to the vehicle interior material 130 than the second housing 312. Therefore, the sound generated based on the vibration of one or more of the first vibration device 333 and the second vibration device 335 may be output to the interior space IS of the vehicle 10, and therefore, the sound including the low-pitched vocal band may be output to the interior space IS of the vehicle 10.

[0190] The first shell 311 may include a sloped surface (or inclined surface) 311s and an inner surface 311i. The sloped surface 311s may be configured to be inclined between the opening portion 310o of the first shell 311 and the inner surface 311i. 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 IS 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 IS 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 more 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.

[0191] The vibration member 331 may be disposed or configured to be spaced apart from the opening portion 310o. The vibration member 331 may be configured at the internal space 313 to be spaced apart from the opening portion 310o. For example, the vibration member 331 may be disposed at the internal space 313 and may be disposed between the first shell 311 and the second shell 312. For example, the vibration member 331 may be disposed at the internal space 313 and may be supported by at least one or more of the first shell 311 and the second shell 312. For example, the vibration member 331 may be disposed to cover the internal space 313 and may be supported by at least one or more of the first shell 311 and the second shell 312. For example, the vibration member 331 may be disposed to cover the internal space 313 of the shell 310. For example, the vibration member 331 may be supported by the first shell 311 and the second shell 312.

[0192] According to an embodiment of the present disclosure, the first shell 311 of the shell 310 may be disposed or configured at the first surface (or rear surface) 331s1 of the vibration member 331. The first shell 311 of the shell 310 may be connected (or coupled) to the first surface 331s1 of the vibration member 331. For example, the first shell 311 may be connected (or coupled) to the peripheral portion (or edge portion) of the first surface 331s1 of the vibration member 331. The first shell 311 may be configured to support the peripheral portion of the first surface 331s1 of the vibration member 331. For example, the first shell 311 may be configured to cover the first surface of the sound generating module 330. For example, the first shell 311 may be configured to surround the first surface of the sound generating module 330.

[0193] According to an embodiment of the present disclosure, the second housing 312 may be disposed or configured at the second surface (or front surface) 331s2 of the vibration member 331. The second housing 312 may be configured to support the peripheral portion (or edge portion) of the second surface 331s2 of the vibration member 331. For example, the second housing 312 may be connected (or coupled) to the second surface 331s2 of the vibration member 331. For example, the second housing 312 may be connected (or coupled) to the peripheral portion of the second surface 331s2 of the vibration member 331. For example, 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 surround the second surface of the sound generating module 330.

[0194] The sound device 30 according to an embodiment of the present disclosure may further include a coupling member 320. 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 the outer 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.

[0195] The first coupling member 321 may be between the vibration member 331 and the first housing 311. The first coupling member 321 may be between the outer peripheral portion of the vibration member 331 and the outer peripheral portion of the first housing 311. For example, the outer peripheral portion of the first housing 311 may be connected or coupled to the first surface 331s1 of the vibration member 331 through the first coupling member 321. For example, the outer peripheral portion of the first housing 311 may be connected or coupled to the outer peripheral portion of the first surface 331s1 of the vibration member 331 through the first coupling member 321.

[0196] The second coupling member 322 may be between the vibration member 331 and the second housing 312. The second coupling member 322 may be between the peripheral portion of the vibration member 331 and the peripheral portion of the second housing 312. For example, the peripheral portion of the second housing 312 may be connected or coupled to the second surface 331s2 of the vibration member 331 through the second coupling member 322. For example, the peripheral portion of the second housing 312 may be connected or coupled to the peripheral portion of the second surface 331s2 of the vibration member 331 through the second coupling member 322.

[0197] 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 housing 310 or prevent the vibration of the vibration member 331 from being transmitted to the housing 310. The coupling member 320 may include material properties suitable for blocking (or isolating or reducing) 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.

[0198] The coupling member 320 according to another embodiment of the present disclosure may be configured to minimize or prevent the transmission of vibration of the vibration member 331 to the housing 310 , and reduce reflection of incident sound waves generated based on the vibration of the vibration member 331 .

[0199] The sound device 30 according to an embodiment of the present disclosure may include a sound generating module 330 having a bimorph structure, and therefore, the sound characteristics and / or sound pressure level characteristics of the sound including the low-pitched vocal cords may be enhanced. Since the sound device 30 according to an embodiment of the present disclosure includes a housing 310 including an opening 310o, the air pressure of the internal space 313 of the housing 310 may be reduced, and therefore, the vocal cords of the low-pitched vocal cords may be expanded, thereby improving the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords.

[0200] In the sound device 30 according to the embodiment of the present disclosure, due to the integrated structure (or integrated structure) of the vibration member 331 and the vibration devices 333 and 335, the vibration of the vibration member 331 can be transmitted to the vibration member 331 without loss, and therefore, the sound pressure level characteristics of the sound generated by the vibration of the vibration member 331 can be enhanced. In addition, in the sound device 30 according to the embodiment of the present disclosure, since a separate bonding member or a separate intermediate member for coupling (or bonding) the vibration devices 333 and 335 and the vibration member 331 to each other is omitted, the manufacturing process can be simplified and the manufacturing cost can be reduced.

[0201] Figure 5 According to the embodiments of the present disclosure Figure 3 and Figure 4 A cross-sectional view of a vibration device of a sound generating module is shown.

[0202] Reference Figures 3 to 5 , 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. Each of the first vibration device 333 and the second vibration device 335 of the vibration devices 333 and 335 may include one or more vibration generators 1310.

[0203] 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 by 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, the vibration generator 1310 may vibrate or mechanically displace (or vibrate or drive) in response to an electrical signal applied from the outside to a piezoelectric material including a piezoelectric ceramic.

[0204] 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.

[0205] The vibration generator 1310 according to an embodiment of the present disclosure may include a vibration generating part 1311 .

[0206] 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.

[0207] 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 .

[0208] The vibration part 1311a may include a piezoelectric material or an electroactive material including a piezoelectric effect. For example, a piezoelectric material may have a property in which, when pressure or distortion is applied to a crystal structure by an external force, a potential difference occurs due to dielectric polarization caused by a change in the relative positions of positive (+) ions and negative (-) ions, and thus vibration is generated by an electric field based on a reverse voltage applied thereto. 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, a piezoelectric ceramic composite, or the like, but the embodiments of the present disclosure are not limited thereto.

[0209] 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. The perovskite crystal structure may have a piezoelectric effect and / or an inverse piezoelectric effect, and may be a plate-shaped structure with orientation or alignment. The perovskite crystal structure may be represented by the chemical formula "ABO3". In the chemical formula, "A" may include a divalent metal element, and "B" may include a tetravalent metal element. As an embodiment of the present disclosure, in the chemical formula "ABO3", "A" and "B" may be cations, and "O" may be anions. 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.

[0210] The piezoelectric ceramic may be configured as a single crystal ceramic having a single 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.

[0211] The first electrode portion 1311b may be disposed at the 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, but the embodiments of the present disclosure are not limited thereto. For example, the first electrode portion 1311b may be disposed (or configured) at at least a portion of the first surface 1311s1 of the vibration portion 1311a. For example, the first electrode portion 1311b may be configured to have a pattern shape or a line shape corresponding to at least a portion of the first surface 1311s1 of the vibration portion 1311a, and may be connected to (or in contact with) or directly connected to (or in contact with) at least a portion of the first surface 1311s1 of the vibration portion 1311a.

[0212] 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 size smaller than the vibration portion 1311a. For example, the second electrode portion 1311c may be disposed (or configured) at at least a portion of the second surface 1311s2 of the vibration portion 1311a. For example, the second electrode portion 1311c may be configured to have a pattern shape or a line shape corresponding to at least a portion of the second surface 1311s2 of the vibration portion 1311a, and may be connected to (or in contact with) or directly connected to (or in contact with) at least a portion of the second surface 1311s2 of the vibration portion 1311a. For example, the second electrode portion 1311c may have the same shape as the vibration portion 1311a, but the embodiments of the present disclosure are not limited thereto.

[0213] 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, 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.

[0214] 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.

[0215] 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.

[0216] According to an embodiment of the present disclosure, a portion of the vibration generating portion 1311 may be accommodated (or inserted) into the vibration member 331. For example, the first surface of the vibration generating portion 1311 adjacent to the vibration member 331 may be accommodated (or inserted) into a portion of the vibration member 331. For example, one of the first electrode portion 1311b and the second electrode portion 1311c may be accommodated (or inserted) into a portion of the vibration member 331. For example, the first electrode portion 1311b of the first electrode portion 1311b and the second electrode portion 1311c may be accommodated (or inserted) into a portion of the vibration member 331. For example, the first electrode portion 1311b may be accommodated (or inserted) into the groove portions 331a and 331b of the vibration member 331. For example, the first electrode portion 1311b may be integrated with the vibration member 331 or the groove portions 331a and 331b of the vibration member 331.

[0217] According to an embodiment of the present disclosure, the first electrode portion 1311b at the first vibration device 333 may be accommodated (or inserted) into the first groove portion 331a of the vibration member 331. Therefore, the first vibration device 333 may be integrated with the vibration member 331 or the first surface 331s1 of the vibration member 331 by the first electrode portion 1311b accommodated (or inserted) into the first groove portion 331a of the vibration member 331. For example, the second electrode portion 1311c at the second vibration device 335 may be accommodated (or inserted) into the second groove portion 331b of the vibration member 331. Therefore, the second vibration device 335 may be integrated with the vibration member 331 or the second surface 331s2 of the vibration member 331 by the second electrode portion 1311c accommodated (or inserted) into the second groove portion 331b of the vibration member 331. Therefore, the vibration of the first vibration device 333 and / or the second vibration device 335 may be effectively transferred to the vibration member 331 without loss, and the sound characteristics of the sound generated based on the vibration of the vibration member 331 may be enhanced.

[0218] According to one embodiment of the present disclosure, in the case where the vibration member 331 is configured with a plastic material, the first surface 331s1 of the vibration member 331 may be coupled to (or deposited on) the first electrode portion 1311b at the first vibration device 333 in a semi-cured state, and then, may be cured so that the first surface 331s1 of the vibration member 331 may be integrated with or bonded to the first electrode portion 1311b at the first vibration device 333, and the second surface 331s2 of the vibration member 331 may be coupled to (or deposited on) the first electrode portion 1311b at the second vibration device 335 in a semi-cured state, and then, may be cured so that the second surface 331s2 of the vibration member 331 may be integrated with or bonded to the first electrode portion 1311b at the second vibration device 335, but the embodiments of the present disclosure are not limited thereto. For example, a portion of the first surface 331s1 of the vibration member 331 that accommodates (or inserts into) the first electrode portion 1311b at the first vibration device 333 can be configured with a first groove portion 331a of the vibration member 331, and a portion of the second surface 331s2 of the vibration member 331 that accommodates (or inserts into) the first electrode portion 1311b at the second vibration device 335 can be configured with a second groove portion 331b of the vibration member 331.

[0219] According to an embodiment of the present disclosure, a portion of the vibration portion 1311a at the first vibration device 333 may be in contact with or in direct contact with the vibration member 331. For example, a peripheral portion of the vibration portion 1311a at the first vibration device 333 may be in contact with or in direct contact with the first surface 331s1 of the vibration member 331. Therefore, the vibration of the vibration portion 1311a at the first vibration device 333 may be effectively transferred to the vibration member 331 without loss. A portion of the vibration portion 1311a at the second vibration device 335 may be in contact with or in direct contact with the vibration member 331. For example, a peripheral portion of the vibration portion 1311a at the second vibration device 335 may be in contact with or in direct contact with the second surface 331s2 of the vibration member 331. Therefore, the vibration of the vibration portion 1311a at the second vibration device 335 may be effectively transferred to the vibration member 331 without loss.

[0220] The vibration generator 1310 (or the sound generating module 330 or the vibration devices 333 and 335 ) according to an embodiment of the present disclosure may further include a cover member 1313 .

[0221] The cover member 1313 may be disposed on a second surface of the vibration generating portion 1311 opposite to the first surface of the vibration generating portion 1311. For example, the cover member 1313 may be configured to cover the second electrode portion 1311c of the vibration generating portion 1311. For example, the cover member 1313 may be configured on the second surface of the vibration generating portion 1311 including the second electrode portion 1311c. For example, the cover member 1313 may be configured to protect the second surface of the vibration generating portion 1311 including the second electrode portion 1311c. For example, the cover member 1313 may be configured to have a larger size than the vibration generating portion 1311.

[0222] The cover member 1313 at the first vibration device 333 may be a first cover member. For example, the first vibration device 333 may include a first cover member configured at the second surface of the vibration generating part 1311 to cover the second electrode part 1311c. The cover member 1313 at the second vibration device 335 may be a second cover member. For example, the second vibration device 333 may include a second cover member configured at the second surface of the vibration generating part 1311 to cover the second electrode part 1311c.

[0223] The material of the cover member 1313 (or the first and second cover members) may be configured as polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate or polysulfone, cycloolefin copolymer, etc., but the embodiments of the present disclosure are not limited thereto.

[0224] The cover member 1313 (or the first cover member and the second cover member) may be connected or coupled to the second surface of the vibration generating portion 1311 or the second electrode portion 1311c through the adhesive layer 1315. For example, the adhesive layer 1315 may be provided (or inserted) between the cover member 1313 (or the first cover member and the second cover member) and the second surface of the vibration generating portion 1311. For example, the cover member 1313 (or the first cover member and the second cover member) may be connected or coupled to the second surface of the vibration generating portion 1311 including the second electrode portion 1311c through a film lamination process using the adhesive layer 1315.

[0225] The outer peripheral portion of the cover member 1313 (or the first cover member) at the first vibration device 333 may be connected or coupled to the first surface 331s1 of the vibration member 331 around the vibration generating part 1311 through the adhesive layer 1315. Therefore, the adhesive layer 1315 may surround the vibration generating part 1311 of the first vibration device 333. For example, the vibration generating part 1311 of the first vibration device 333 may be surrounded or completely surrounded by the adhesive layer 1315.

[0226] The outer peripheral portion of the cover member 1313 (or the second cover member) at the second vibration device 335 may be connected or coupled to the second surface 331s2 of the vibration member 331 around the vibration generating part 1311 by the adhesive layer 1315. Therefore, the adhesive layer 1315 may surround the vibration generating part 1311 of the second vibration device 335. For example, the vibration generating part 1311 of the second vibration device 335 may be surrounded or completely surrounded by the adhesive layer 1315.

[0227] The adhesive layer 1315 between the cover member 1313 (or first cover member) at the first vibration device 333 and the first surface 331s1 of the vibration member 331 may be a first adhesive layer. The adhesive layer 1315 between the cover member 1313 (or second cover member) at the second vibration device 335 and the second surface 331s2 of the vibration member 331 may be a second adhesive layer.

[0228] The adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) according to an embodiment of the present disclosure may include an electrically insulating material having adhesiveness and capable of compression and decompression. For example, the adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) may include epoxy resin, acrylic resin, silicone resin, polyurethane resin, pressure sensitive adhesive (PSA), optically clear adhesive (OCA) or optically clear resin (OCR), but the embodiments of the present disclosure are not limited thereto.

[0229] The adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) according to another embodiment of the present disclosure may include an insulating adhesive material. For example, the adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) may include one or more of a heat-curing adhesive, a light-curing adhesive, and a thermosetting adhesive (or a thermal bonding adhesive). For example, the adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) may include a heat-curing adhesive or a thermosetting adhesive. The thermosetting adhesive may be a thermally active type or a thermosetting type. For example, the adhesive layer 1315 (or the first adhesive layer and the second adhesive layer) including a thermosetting adhesive may be connected (or adhered) to the vibration member 331 by heat and pressure to surround the vibration generating portion 1311.

[0230] Figure 6 Another embodiment according to the present disclosure is shown. Figure 5 The vibration part shown in FIG.

[0231] Reference Figure 6 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).

[0232] 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.

[0233] 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). Figure 5 The vibration part 1311 a described above has substantially the same material configuration, and therefore, repeated description may be omitted or will be briefly given below.

[0234] 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.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] Figure 7 Another embodiment according to the present disclosure is shown. Figure 5 The vibration part shown in FIG. Figure 7 The above reference Figure 5 Another embodiment of the vibration portion is described.

[0240] Reference Figure 7 , 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 .

[0241] Each of the plurality of first portions 1311a3 may be disposed to be spaced apart from each other in 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 elliptical plate, or a polygonal plate having the same size as each other, but embodiments of the present disclosure are not limited thereto.

[0242] Each of the plurality of first portions 1311a3 may be similar to the above reference Figure 5 The first portion 1311a1 is described to have substantially the same material configuration, and therefore, a repeated description may be omitted or will be briefly given below.

[0243] 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 disposed in the same manner as described above with reference to Figure 6 The second portion 1311a2 is described to have substantially the same material configuration, and therefore, a repeated description may be omitted or will be briefly given below.

[0244] 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 1311a1.

[0245] 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.

[0246] Figure 8 A sound device according to another embodiment of the present disclosure is shown.

[0247] Reference Figure 8 , the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figures 3 to 7 The descriptions 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.

[0248] The sound device 30 according to another embodiment of the present disclosure may further include a connection member 350 .

[0249] The connecting member 350 may be disposed or configured between the vibration object and the sound device 30. The connecting member 350 may be disposed or configured at the rear surface of the sound device 30. For example, the connecting member 350 may be configured or connected to the rear surface of the shell 310. For example, the connecting member 350 may be configured or disposed at the rear surface of the first shell 311. For example, the connecting member 350 may be disposed between the shell 310 and the vehicle interior material (or the installation object). For example, the connecting member 350 may be disposed between the first shell 311 and the vehicle interior material (or the installation object). For example, the installation object may be a structure having the sound device 30 or the shell 310 mounted thereon. For example, the connecting member 350 may be disposed or configured between the vehicle interior material and the above reference Figure 1 or Figure 2 The described sound device 30 or the housing 310. For example, the connection member 350 may be a coupling member, an intermediate member, or a buffer member, but the embodiments of the present disclosure are not limited thereto.

[0250] The connection member 350 may be configured to transfer vibration of the first housing 311 to the vehicle interior material 130 based on vibration of the sound generating module 330. Therefore, the vehicle interior material 130 may vibrate based on the vibration transferred through the connection member 350 to generate (or output) sound.

[0251] According to another embodiment of the present disclosure, the first housing 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first housing 311 may face the vibration member 331. The outer surface of the first housing 311 may be a surface of the first housing 311 opposite to the inner surface 311i. The connecting member 350 may be connected to the periphery of the opening portion 310o of the outer surface of the first housing 311.

[0252] According to another embodiment of the present disclosure, the connecting member 350 can be configured with 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.

[0253] According to an embodiment of the present disclosure, the connecting member 350 may further include a hole 350o (or a first hole or an opening hole). For example, the connecting member 350 may further include a hole 350o connected to the opening portion 310o in the housing 310 or the first housing 311. The hole 350o may be arranged to correspond to (or overlap) the opening portion 310o. Therefore, the sound based on the vibration of the sound generating module 330 may be output to the inner space IS of the vehicle through (or by means of) the opening portion 310o and the hole 350o. The hole 350o may have the same shape as the opening portion 310o, but the embodiment of the present disclosure is not limited thereto. For example, the hole 350o may be an opening portion, 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.

[0254] According to an embodiment of the present disclosure, the connection member 350 may be protected by a release film (or protective film) 351. The release film 351 may be attached to an adhesive surface of the connection member 350. In a case where the sound device 30 including the connection member 350 is mounted on the vehicle interior material (or installation object) 130, the release film 351 may be released (or removed) from the connection member 350.

[0255] The connection member 350 according to an embodiment of the present disclosure can prevent the undesired vibration of the sound generating module 330 from being transmitted to the inner space of the vehicle, and thus can improve the sound characteristics and / or sound pressure level characteristics of the sound device 30. In addition, the connection member 350 can reduce the heat generated when the sound generating module 330 vibrates.

[0256] Fig. 9 A sound device according to another embodiment of the present disclosure is shown.

[0257] Reference Fig. 9, the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figures 3 to 7 The descriptions 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.

[0258] The sound device 30 according to another embodiment of the present disclosure may further include a soft member (ductile member) 360 .

[0259] The soft component 360 may be disposed or configured between the installation object and the sound device 30. The soft component 360 may be disposed or configured at the rear surface of the sound device 30. For example, the soft component 360 may be configured or connected to the rear surface of the shell 310. For example, the soft component 360 may be disposed or configured at the rear surface of the first shell 311. For example, the soft component 360 may be disposed between the shell 310 and the vehicle interior material (or the installation object). For example, the soft component 360 may be disposed between the first shell 311 and the vehicle interior material (or the installation object). For example, the installation object may be a structure having the sound device 30 or the shell 310 mounted thereon. For example, the soft component 360 may be disposed or configured between the vehicle interior material and the above reference Figure 1 or Figure 2 The soft member 360 may be a coupling member, an intermediate member, or a buffer member, but the embodiments of the present disclosure are not limited thereto.

[0260] According to another embodiment of the present disclosure, the first housing 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first housing 311 may face the vibration member 331. The outer surface of the first housing 311 may be a surface of the first housing 311 opposite to the inner surface 311i. The soft member 360 may be connected to the periphery of the opening 310o of the outer surface of the first housing 311.

[0261] According to an embodiment of the present disclosure, the soft member 360 may be configured as a material different from the connection member 350. The elasticity (or Young's modulus) of the soft member 360 may be configured as a material different from the elasticity (or Young's modulus) of the connection member 350. For example, the soft member 360 may be configured as a material with low elasticity. The soft member 360 may be configured as a soft material. For example, the soft member 360 may be ethylene propylene rubber or polyurethane rubber, but the embodiments of the present disclosure are not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), and as the foaming rate changes in EPDM, the ethylene propylene rubber may be configured as EPDM with low elasticity, but the embodiments of the present disclosure are not limited thereto. For example, the soft member 360 may include 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., but the embodiments of the present disclosure are not limited thereto.

[0262] According to an embodiment of the present disclosure, the soft component 360 may further include a hole 360o (or a second hole or an opening hole). For example, the soft component 360 may further include a hole 360o connected to the opening portion 310o. The hole 360o may be arranged to correspond to the opening portion 310o. Therefore, the sound based on the vibration of the sound generating module 330 may be output to the inner space IS of the vehicle through (or by means of) the opening portion 310o and the hole 360o. The hole 360o may have the same shape as the opening portion 310o, but the embodiment of the present disclosure is not limited thereto. For example, the hole 360o may be an opening portion, 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. According to the soft component 360 of the embodiment of the present disclosure, an external impact may be absorbed, and therefore the sound device 30 may be protected from external impact. For example, the soft component 360 may be a porous component, a buffer component or a protective component, etc., but the embodiment of the present disclosure is not limited thereto.

[0263] According to an embodiment of the present disclosure, the soft member 360 may be protected by a release film (or protective film) 361. The release film 361 may be attached to the adhesive surface of the soft member 360. In a case where the sound device 30 including the soft member 360 is mounted on the vehicle interior material (or installation object) 130, the release film 361 may be released (or removed) from the soft member 360.

[0264] The soft member 360 according to the embodiment of the present disclosure may absorb external impact, and thus may prevent damage to the sound generating module 330. Therefore, the durability and reliability of the sound device 30 may be enhanced.

[0265] According to another embodiment of the present disclosure, the soft member 360 may be disposed at the housing 310, or may be stacked on the connecting member 350, instead of the above reference. Figure 8 The connecting member 350 described above is disposed on the connecting member 350. For example, the connecting member 350 and the soft member 360 may be disposed between the first housing 311 and the vehicle interior material (or the installation object). For example, the connecting member 350 may be connected to the first housing 311, and the soft member 360 may be disposed between the connecting member 350 and the vehicle interior material (or the installation object).

[0266] Fig.10 A sound device according to another embodiment of the present disclosure is shown. Fig.11 is a diagram showing an embodiment according to the present disclosure Figure 8 A cross-sectional view of a vibration device of a sound generating module is shown.

[0267] Reference Fig.10 and Fig.11 , the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figures 3 to 7 The descriptions described 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.

[0268] The sound device 30 according to another embodiment of the present disclosure may include vibration devices 333 and 335 including a plurality of vibration generators 333A, 333B, 335A, and 335B.

[0269] The first vibration device 333 of the vibration devices 333 and 335 may include a plurality of 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.

[0270] The first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may overlap or stack each other so as to be displaced (or driven or vibrated) in the same direction to maximize the amplitude displacement of the vibration member 331. For example, the first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may have substantially the same size, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may 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 generator 333A and the second vibration generator 333B of the first vibration device 333 may increase or maximize the amplitude displacement of the vibration member 331.

[0271] The first vibration generator 333A of the first vibration device 333 may be the same as that described above with reference to Figures 3 to 7 The vibration generator 1310 of the described first vibration device 333 is substantially the same, and thus a repeated description may be omitted.

[0272] The second vibration generator 333B of the first vibration device 333 may be connected (or coupled) or attached to the cover member 1313 of the first vibration generator 333A.

[0273] In the first vibration device 333, the second vibration generator 333B may include a vibration generating portion 1311, and the vibration generating portion 1311 includes a vibration portion 1311a, a first electrode portion 1311b, and a second electrode portion 1311c. The second vibration device 333B may further include a cover member 1313. The cover member 1313 may be connected (or coupled) to the second surface of the vibration generating portion 1311 through an adhesive layer 1315. The vibration generating portion 1311, the cover member 1313, and the adhesive layer 1315 of the second vibration generator 333B may be the same as those described above with reference to Figures 3 to 7 The vibration generating part 1311 , the cover member 1313 , and the adhesive layer 1315 of the described first vibration device 333 are substantially the same, and thus, repeated descriptions may be omitted.

[0274] The first vibration device 333 may further include an intermediate member 333M. In the first vibration device 333, the intermediate member 333M may be disposed or connected between the first vibration generator 333A and the second vibration generator 333B. For example, the intermediate member 333M may be disposed or connected between the cover member 1313 of the first vibration generator 333A and the first surface of the second vibration generator 333B. For example, the intermediate member 333M may be connected (or coupled) to the cover member 1313 of the first vibration generator 333A, and may be connected (or coupled) to the adhesive layer 1315 and the second electrode portion 1311b of the second vibration generator 333B. Therefore, the second vibration generator 333B may be connected (or coupled) to the first vibration generator 333A through the intermediate member 333M. For example, the intermediate member 333M may be an adhesive member or a connecting member, but the embodiments of the present disclosure are not limited thereto.

[0275] The first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may overlap or stack each other so as to be displaced (or driven or vibrated) in the same direction to maximize the amplitude displacement of the vibration member 331. For example, the first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may have substantially the same size, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may 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 generator 335A and the second vibration generator 335B of the second vibration device 335 may increase or maximize the amplitude displacement of the vibration member 331 more.

[0276] The first vibration generator 335A of the second vibration device 335 can be the same as that described above with reference to Figures 3 to 7 The vibration generator 1310 of the described second vibration device 335 is substantially the same, and thus repeated description may be omitted.

[0277] The second vibration generator 335B of the second vibration device 335 may be connected (or coupled) or attached to the cover member 1313 of the first vibration generator 335A.

[0278] In the second vibration device 335, the second vibration generator 335B may include a vibration generating portion 1311, and the vibration generating portion 1311 includes a vibration portion 1311a, a first electrode portion 1311b, and a second electrode portion 1311c. The second vibration device 335B may further include a cover member 1313. The cover member 1313 may be connected (or coupled) to the second surface of the vibration generating portion 1311 through an adhesive layer 1315. The vibration generating portion 1311, the cover member 1313, and the adhesive layer 1315 of the second vibration generator 335B may be the same as those described above with reference to Figures 3 to 7 The vibration generating part 1311 , the cover member 1313 , and the adhesive layer 1315 of the described second vibration device 335 are substantially the same, and thus, repeated descriptions may be omitted.

[0279] The second vibration device 335 may further include an intermediate member 335M. In the second vibration device 335, the intermediate member 335M may be disposed or connected between the first vibration generator 335A and the second vibration generator 335B. For example, the intermediate member 335M may be disposed or connected between the cover member 1313 of the first vibration generator 335A and the first surface of the second vibration generator 335B. For example, the intermediate member 335M may be connected (or coupled) to the cover member 1313 of the first vibration generator 335A, and may be connected (or coupled) to the adhesive layer 1315 and the second electrode portion 1311b of the second vibration generator 335B. Therefore, the second vibration generator 335B may be connected (or coupled) to the first vibration generator 335A through the intermediate member 335M. For example, the intermediate member 333M may be an adhesive member or a connecting member, but the embodiments of the present disclosure are not limited thereto.

[0280] According to the intermediate members 333M and 335M of the embodiments of the present disclosure, the material configuration including 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 a foam pad, a double-sided tape, a double-sided foam tape, a double-sided pad, a double-sided foam pad or an adhesive, 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).

[0281] According to another embodiment of the present disclosure, each of the first vibration device 333 and the second vibration device 335 may include a plurality of vibration generators 333A, 333B, 335A, and 335B, and thus, one of the first vibration device 333 and the second vibration device 335 may be omitted, but embodiments of the present disclosure are not limited thereto.

[0282] The sound device 30 according to another embodiment of the present disclosure may have the same Figures 3 to 9 The same effect as described in the sound device 30. In addition, the sound device 30 according to another embodiment of the present disclosure may include a plurality of stacked (or piled or overlapped) vibration generators 333A, 333B, 335A and 335B, so that the vibration devices 333 and 335 vibrate (or shift or drive) in the same direction, and therefore, the displacement amount (or bending force or driving force) or displacement amplitude of the vibration member 331 can be maximized or increased, thereby enhancing the low-pitched vocal cord characteristics of the sound generated by the vibration of the vibration member 331.

[0283] Fig.12 A sound device according to another embodiment of the present disclosure is shown.

[0284] Reference Fig.12 , the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figures 3 to 8The descriptions 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.

[0285] The sound device 30 according to another embodiment of the present disclosure may further include a connecting member 350. The description of the connecting member 350 may be the same as that described above with reference to Figure 8 The descriptions described are substantially the same, and therefore, repeated descriptions may be omitted or will be briefly given below.

[0286] A connection member 350 according to another embodiment of the present disclosure may be provided at the rear surface of the housing 310. The connection member 350 may be provided between the housing 310 and the vehicle interior material 130. For example, the connection member 350 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 350. For example, the vehicle interior material 130 may be connected or coupled to the rear surface of the first housing 311 through the connection member 350. Therefore, the sound device 30 or the housing 310 may be connected or coupled to the vehicle interior material 130 through the connection member 350.

[0287] According to an embodiment of the present disclosure, the connecting member 350 may include a relatively rigid material (or a hard material), and thus the vibration of the first shell 311 based on the vibration of the vibration device may be transmitted to the vehicle interior material 130. Therefore, the vehicle interior material 130 may vibrate based on the vibration transmitted through the connecting member 350 to generate sound. For example, when the connecting member 350 includes a relatively rigid material (or a hard material), the vehicle interior material 130 connected to the connecting member 350 may be a vibration plate for generating (or outputting) sound. For example, when the connecting member 350 includes a relatively rigid material (or a hard material), the vibration of the first shell 311 may be more effectively transmitted to the vehicle interior material 130.

[0288] According to an embodiment of the present disclosure, the connecting member 350 may further include a first hole 350o (or hole). For example, the connecting member 350 may further include a first hole 350o connected to the opening portion 310o in the housing 310. The first hole 350o may be arranged to correspond to the opening portion 310o. The first hole 350o may have the same shape as the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the first hole 350o may be an opening portion, a slit, a groove, a connecting hole, or an intermediate hole, but the embodiments of the present disclosure are not limited thereto.

[0289] According to an embodiment of the present disclosure, the vehicle interior material 130 may further include a second hole 137 (or hole, or opening hole, or through hole). The second hole 137 (or hole) may include one hole or a plurality of holes. For example, the second hole 137 as a hole may correspond to (or overlap) the opening portion 310o and the first hole 350o. For example, the second hole 137 as a hole may have a size greater than or equal to the opening portion 310o, and have the same size as the first hole 350o. For example, a plurality of holes may be arranged at equal or different intervals (or distances). The second hole 137 may be arranged to correspond to (or overlap) the opening portion 310o and / or the first hole 350o. For example, the second hole 137 (or hole) may be accommodated in (or within) the opening portion 310o and / or the first hole 350o. For example, the second hole 137 may be a through hole, an opening portion, an opening hole, a slit, a groove, a sound hole, a sound exhaust hole, or a sound output hole, but embodiments of the present disclosure are not limited thereto.

[0290] 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 portion 310o, the first hole 350o and the second hole 137. In addition, the sound device 30 or the housing 310 can vibrate the vehicle interior material 130 through the connecting member 350 to output the sound to the inner space of the vehicle based on the vibration of the vehicle interior material 130.

[0291] Fig.13 A sound device according to another embodiment of the present disclosure is shown.

[0292] Reference Fig.13 , the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figure 3 , Figure 4 and Figure 5 The descriptions described 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.

[0293] The sound device 30 according to another embodiment of the present disclosure may further include a soft component 360. The description of the soft component 360 may be the same as that described above with reference to Fig. 9 The descriptions described are substantially the same, and therefore, repeated descriptions may be omitted or will be briefly given below.

[0294] A soft component 360 according to another embodiment of the present disclosure may be disposed at the rear surface of the housing 310. The soft component 360 may be disposed between the housing 310 and the vehicle interior material 130. For example, the soft component 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 through the soft component 360. For example, the vehicle interior material 130 may be connected or coupled to the rear surface of the first housing 311 through the soft component 360. Therefore, the sound device 30 or the housing 310 may be connected or coupled to the vehicle interior material 130 through the soft component 360.

[0295] The vehicle interior material 130 according to another embodiment of the present disclosure may include one or more curved portions (or one or more tortuosity portions) 136. The soft component 360 may be configured to correspond to the one or more curved portions 136. The soft component 360 may contact the one or more curved portions 136. For example, the vehicle interior material 130 may include one or more curved portions 136 that contact the soft component 360. The soft component 360 may contact the entire vibration area of ​​the vehicle interior material 130. The soft component 360 may directly contact the entire vibration area of ​​the vehicle interior material 130. The soft component 360 may directly contact the one or more curved portions 136.

[0296] According to an embodiment of the present disclosure, the soft member 360 may directly contact one or more curved portions 136 without a separate bonding member or a separate intermediate member (or medium). For example, the soft member 360 may directly contact the entire vibration area of ​​the vehicle interior material 130 without a separate bonding 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 a 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.

[0297] According to an embodiment of the present disclosure, the soft member 360 may include a relatively smooth material (or soft 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 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 (or soft material). For example, the soft member 360 configured with a relatively smooth material (or soft material) according to another embodiment of the present disclosure may be a ductile member or a soft member.

[0298] According to an embodiment of the present disclosure, the soft member 360 may 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 configured with a relatively smooth material (or soft material), but the embodiments of the present disclosure are not limited thereto. The soft member 360 may be filled in one or more curved portions 136 of the vehicle interior material 130, or may be configured to cover or completely cover one or more curved portions 136 of the vehicle interior material 130.

[0299] According to an embodiment of the present disclosure, the soft member 360 may be disposed between the housing 310 and 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 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 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 one or more curved portions 136 of the vehicle interior material 130, or may cover one or more curved portions 136 of the vehicle interior material 130, and therefore, external impact may be absorbed, thereby protecting the sound device 30.

[0300] According to an embodiment of the present disclosure, the soft component 360 may further include a first hole 360o (or hole). For example, the soft component 360 may further include a first hole 360o connected to the opening 310o at the sound generating module 330. The first hole 360o may be arranged to correspond to the opening 310o. The first hole 360o may have the same shape as the opening 310o, but the embodiment of the present disclosure is not limited thereto. For example, the first hole 360o may be an opening, a slit, a groove, a connecting hole or an intermediate hole, but the embodiment of the present disclosure is not limited thereto.

[0301] According to an embodiment of the present disclosure, the vehicle interior material 130 may further include a second hole 137 (or hole). The second hole 137 (or hole) may include one hole or a plurality of holes. For example, the second hole 137 as a hole may correspond to (or overlap) the opening portion 310o and the first hole 360o. For example, the second hole 137 as a hole may have a size greater than or equal to the opening portion 310o and have the same size as the first hole 360o. The second hole 137 may be arranged to correspond to (or overlap) the opening portion 310o and / or the first hole 360o. For example, the second hole 137 (or hole) may be accommodated in the opening portion 310o and / or the first hole 360o (or in the opening portion 310o and / or the first hole 360o). For example, the second hole 137 may be an opening portion, an opening hole, a slit, or a groove, but the embodiments of the present disclosure are not limited thereto.

[0302] 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 portion 310o, the first hole 360o, and the second hole 137. In addition, the sound device 30 or the housing 310 can vibrate one or more curved portions 136 at the vehicle interior material 130 through the soft member 360 to output the sound to the inner space of the vehicle based on the vibration of the vehicle interior material 130. In addition, the soft member 360 can absorb external impacts, and thus the sound device 30 can be protected from external impacts.

[0303] Fig.14 A sound device according to another embodiment of the present disclosure is shown. Fig.15 According to another embodiment of the present disclosure Fig.12 An exploded perspective view of the sound device shown. Fig.15 A method of connecting a sound device to a coupling portion according to another embodiment of the present disclosure is shown.

[0304] Reference Fig.14 and Fig.15 , the sound device 30 according to another embodiment of the present disclosure may include a housing 310, a sound generating module 330, and a coupling member 320. The description of the housing 310, the sound generating module 330, and the coupling member 320 may be the same as that of the above reference. Figures 3 to 13 The descriptions described 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.

[0305] In the case where the sound device 30 is connected to the vehicle interior material 130, the sound device 30 may be connected to the vehicle interior material 130 by an adhesive. In the case where the sound device 30 is connected to the vehicle interior material 130 by an adhesive, there may be a problem that it is difficult to rework or replace the sound device 30 when a defect or failure occurs, and there may be a problem that the sound device 30 is damaged when rework or replacement is performed. Therefore, the inventors of the present disclosure have conducted extensive research and experiments for facilitating the rework or replacement of the sound device 30 connected to the vehicle interior material 130 and preventing damage to the sound device 30. Based on the extensive research and experiments, the inventors of the present disclosure have invented a sound device in which the rework or replacement of the sound device 30 connected to the vehicle interior material 130 is easy to perform, and damage to the sound device 30 does not occur when rework or replacement is performed. This will be described below.

[0306] The sound device 30 according to another embodiment of the present disclosure may further include a coupling portion 500 .

[0307] The coupling portion 500 may be disposed or configured between the vehicle interior material 130 and the sound generating module 330. The coupling portion 500 may be at the rear surface of the housing 310. The coupling portion 500 may be between the rear surface of the housing 310 and the vehicle interior material 130. For example, the coupling portion 500 may be configured to couple the housing 310 with the vehicle interior material 130 (or an installation object). The coupling portion 500 may be configured to couple the housing 310 to the vehicle interior material 130 (or an installation object) when the housing 310 is mounted on the vehicle interior material 130 (or an installation object). For example, the coupling portion 500 may be configured to couple the first housing 311 to the vehicle interior material 130 (or an installation object) when the first housing 311 is mounted on the vehicle interior material 130 (or an installation object). The coupling portion 500 may be configured to connect or couple the housing 310 to 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. 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 sound guide member, a waveguide, or a sound exhaust member, etc., but the embodiments of the present disclosure are not limited thereto.

[0308] According to an embodiment of the present disclosure, the coupling portion 500 may be accommodated or inserted into the opening portion 310o of the housing 310. The coupling portion 500 may be accommodated or inserted into the opening portion 310o of the first housing 311. The coupling portion 500 may be accommodated or inserted into the hole 137 of the vehicle interior material 130. The coupling portion 500 may be accommodated or inserted into the opening portion 310o and the hole 137 of the first housing 311. For example, the hole 137 (or opening hole) of the vehicle interior material 130 may be connected to the opening portion 310o. For example, the coupling portion 500 may be configured to be coupled to the first housing 311 through the hole 137 (or opening hole) of the vehicle interior material 130 and the opening portion 310o.

[0309] According to an embodiment of the present disclosure, the housing 310 may surround both sides of the sound generating module 330 (or the vertical direction (or the up-down direction) relative to the horizontal direction), and therefore, the internal space 313 of the housing 310 may be minimized. For example, the first housing 311 and the second housing 312 may surround both sides of the sound generating module 330 (or the vertical direction (or the up-down direction) relative to the horizontal direction), and therefore, the first space (or the first internal space) 313a and the second space (or the second internal space) 313b of the housing 310 may be minimized. Therefore, the thickness of the sound generating module 330 may be reduced, and therefore, the thickness of the sound device 30 may be reduced.

[0310] The coupling portion 500 according to an embodiment of the present disclosure may further include a hollow portion 501. For example, 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 through the opening portion 310o 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 portion 310o 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 portion 310o of the housing 310. For example, the hollow portion 501 may be connected to the first space 313a through the opening portion 310o of the first housing 311. The sound based on the vibration of the sound generating module 330 may be output to the inner space of the vehicle through (or via) the hollow portion 501. 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.

[0311] The coupling portion 500 according to an embodiment of the present disclosure may further include a hollow member 502 and a latch member 503 .

[0312] The hollow member 502 may include a hollow portion 501. The hollow portion 501 may be connected or coupled to the hole (or first hole) 137 of the vehicle interior material 130. The hollow member 502 may be connected or coupled to the hole 137 of the vehicle interior material 130 and the opening portion 310o of the shell 310. For example, the hollow member 502 may be connected or coupled to the hole 137 of the vehicle interior material 130 and the opening portion 310o of the first shell 311. For example, the hollow member 502 may be accommodated or inserted into the opening portion 310o of the first shell 311 through the hole 137 of the vehicle interior material 130. For example, the coupling portion 500 may be connected or coupled to the shell 310 or the first shell 311 through the hole 137 of the vehicle interior material 130.

[0313] 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 be connected or coupled to the vehicle interior material 130 (or the installation object) equipped with the housing 310. The latch member 503 may be connected or coupled to the periphery of the hole 137 of the vehicle interior material 130. The latch member 503 may be connected or coupled to the rear surface (or inner surface) 130s of the vehicle interior material 130 at the periphery of the hole 137 (or through hole) of the vehicle interior material 130. For example, the latch member 503 may be a latch, etc., but the embodiments of the present disclosure are not limited thereto.

[0314] The coupling portion 500 according to the embodiment of the present disclosure may further include a hook member 504 .

[0315] The first housing 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first housing 311 may face the vibration member 331. The outer surface of the first housing 311 may be a surface of the first housing 311 opposite to the inner surface 311i.

[0316] The hook member 504 may be connected to a first side of the hollow member 502. The hook member 504 may be coupled to an inner surface 311i of the housing 310 that faces the vibration member 331 at the sound generating module 330 or the sound device 30. The hook member 504 may be coupled to the inner surface 311i or the slope surface 311s of the housing 310 at the inner space 313 of the housing 310. The hook member 504 may be accommodated or inserted into the opening portion 310o of the first housing 311. For example, the hook member 504 may be accommodated or inserted into the opening portion 310o of the first housing 311 through the vehicle interior material 130. For example, the latch member 503 may be connected to a second side of the hollow member 502. The latch member 503 may be coupled to a rear surface (or inner surface) 130s of the vehicle interior material 130 that is exposed at the inner space of the vehicle. For example, the latch member 503 may be coupled to one surface (or inner surface or rear surface) 130s of the vehicle interior material 130 exposed at the interior space of the vehicle.

[0317] The housing 310 or the first housing 311 may further include a groove portion 311g. For example, the groove portion 311g may be configured at the inner surface 311i in the inner space 313. For example, the groove portion 311g may be configured at the periphery of the opening 310o of the inner surface 311i in the inner space 313.

[0318] The hook member 504 may include a ramp surface 504s. For example, the hook member 504 may include a ramp surface 504s based on the shape of the latch member 503. The ramp surface 504s may be configured to correspond to the shape of the latch member 503. The hook member 504 may be configured to correspond to the groove portion 311g of the first housing 311 or the housing 310. For example, the hook member 504 may be connected or coupled to the groove portion 311g of the first housing 311 or the housing 310. For example, the hook member 504 may be accommodated (or inserted) into the opening portion 310o by the vehicle interior material 130, and may be connected or coupled to the groove portion 311g. For example, the hook member 504 may be accommodated (or inserted) into the opening portion 310o by the vehicle interior material 130, and may be connected or coupled to the groove portion 311g by a hook coupling scheme. For example, the groove portion 311g and the ramp surface 504s may each be a fastening guide surface having a coupling portion 500. For example, the hook member 504 may be a protrusion or a protrusion, but embodiments of the present disclosure are not limited thereto. For example, the groove portion 311g may be a concave portion, but embodiments of the present disclosure are not limited thereto.

[0319] Reference Fig.13, the coupling portion 500 may be connected or coupled to the sound device 30 or the housing 310 through the hole 137 of the vehicle interior material 130 and the opening portion 310o of the housing 310. For example, in the inner space of the vehicle, the coupling portion 500 may be accommodated or inserted into the opening portion 310o of the first housing 311 through the hole 137 (arrow direction) of the vehicle interior material 130. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or accommodated) into the opening portion 310o of the first housing 311, and may be connected or coupled to the groove portion 311g of the first housing 311. For example, the hollow member 502 of the coupling portion 500 is inserted (or accommodated) into the opening portion 310o of the first shell 311, and therefore, the hook member 504 of the coupling portion 500 is pushed (or compressed) to the center (or inside) of the hollow portion 501 by elastic force (horizontal arrow direction), and then can be elastically restored to the groove portion 311g of the first shell 311 by elastic restoring force, and can be connected or coupled to the opening portion 310o of the first shell 311. For example, when the coupling portion 500 is inserted into the opening portion 310o of the first shell 311, the slope surface 504s of the hook member 504 can facilitate the insertion of the coupling portion 500 and the compression of the hook member 504. For example, the hook member 504 can be connected or coupled to the groove portion 311g of the first shell 311. For example, the hook member 504 can be coupled to the groove portion 311g of the first shell 311 by a hook coupling scheme.

[0320] According to an embodiment of the present disclosure, the sound device 30 can be connected or coupled to the vehicle interior material 130 through the coupling portion 500, and therefore, rework or replacement of the sound device 30 connected to the vehicle interior material 130 can be easily performed, thereby preventing damage to the sound generation module 330 when rework or replacement is performed. According to an embodiment of the present disclosure, because the coupling portion 500 is configured, the sound device 30 can be easily attached or installed on a narrow area (or space) between the vehicle interior material 130 and the vehicle structure. According to an embodiment of the present disclosure, because the sound device 30 is coupled to the vehicle interior material 130 or installed on the vehicle interior material 130 through the coupling portion 500, a vibration sound (or chatter) may not occur between the sound device 30 and the vehicle interior material 130, and therefore, the sound characteristics and / or sound pressure level characteristics of the sound device 30 can be improved.

[0321] According to another embodiment of the present disclosure, the sound device 30 may further include: Fig.16 The connecting member 350 is shown.

[0322] Reference Fig.16, the connecting member 350 may be between the vehicle interior material 130 and the housing 310. The connecting member 350 may be between the vehicle interior material 130 and the first housing 311. The connecting member 350 may also include a second hole (or hole) 350o. For example, the second hole 350o may be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the housing 310. For example, the second hole 350o may be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first housing 311. The second hole 350o may be connected to the opening 310o of the housing 310. For example, the second hole 350o may be connected to the opening 310o of the first housing 311. The second hole 350o may be arranged to correspond to the opening 310o.

[0323] In the inner space of the vehicle, the coupling portion 500 may be connected or coupled to the housing 310 or the sound device 30 through the first hole 137 (arrow direction) of the vehicle interior material 130. For example, the hollow member 502 may be accommodated in the opening portion 310o through the first hole 137 and the second hole (or connecting hole) 350o of the vehicle interior material 130. For example, in the inner space of the vehicle, the coupling portion 500 may be accommodated or inserted into the opening portion 310o of the first housing 311 through the first hole 137 of the vehicle interior material 130 and the second hole 350o of the connecting member 350. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hollow member 502 of the coupling portion 500 may be inserted (or accommodated) into the opening portion 310o of the first housing 311 (arrow direction), and thus, the hook member 504 of the coupling portion 500 is pushed (or compressed) to the center (or inside) of the hollow portion 501 by elastic force, and then may be elastically restored to the groove portion 311g of the first housing 311 by elastic restoring force, and may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 may be coupled to the groove portion 311g of the first housing 311 by a hook coupling scheme.

[0324] The sound device 30 according to another embodiment of the present disclosure may further include a soft component 360 instead of Fig.16 The connecting member 350 shown in FIG.

[0325] Reference Fig.16, the soft component 360 may be between the vehicle interior material 130 and the housing 310. The soft component 360 may be between the vehicle interior material 130 and the first housing 311. The soft component 360 may include a second hole (or hole or third hole) 360o. For example, the second hole 360o may be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the housing 310. For example, the second hole 360o may be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first housing 311. The second hole 360o may be connected to the opening 310o of the housing 310. For example, the second hole 360o may be connected to the opening 310o of the first housing 311. For example, the second hole 360o may be arranged to correspond to the opening 310o.

[0326] In the inner space of the vehicle, the coupling portion 500 may be connected or coupled to the housing 310 or the sound device 30 through the first hole 137 (arrow direction) of the vehicle interior material 130. For example, the hollow member 502 may be accommodated in the opening part 310o through the first hole 137 and the second hole (or connection hole) 350o of the vehicle interior material 130. For example, in the inner space of the vehicle, the coupling portion 500 may be accommodated or inserted into the opening portion 310o of the first housing 311 through the first hole 137 of the vehicle interior material 130 and the second hole 360o of the soft member 360. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hollow member 502 of the coupling portion 500 may be inserted (or accommodated) into the opening portion 310o of the first housing 311 (arrow direction), and thus, the hook member 504 of the coupling portion 500 is pushed (or compressed) to the center (or inside) of the hollow portion 501 by elastic force, and then may be elastically restored to the groove portion 311g of the first housing 311 by elastic restoring force, and may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 may be coupled to the groove portion 311g of the first housing 311 by a hook coupling scheme.

[0327] The sound device 30 according to another embodiment of the present disclosure may further include: Fig.17 The connecting member 350 and the soft member 360 are shown in FIG.

[0328] Reference Fig.17, the coupling portion 500 may be connected or coupled to the sound device 30 through the first hole 137 of the vehicle interior material 130, the second hole 350o of the connecting member 350, the third hole 360o of the soft member 360, and the opening 310o of the housing 310 (arrow direction). For example, the hollow member 502 may be accommodated in the opening 310o through the first hole 137 of the vehicle interior material 130, the second hole (or connecting hole) 350o, and the third hole 360o of the soft member 360. For example, the coupling portion 500 may be connected or coupled to the housing 310 through the first hole 137 of the vehicle interior material 130, the third hole 360o of the soft member 360, and the opening 310o of the housing 310. For example, the coupling portion 500 may be connected or coupled to the sound device 30 through the first hole 137 of the vehicle interior material 130 , the second hole 350 o of the connecting member 350 , the third hole 360 ​​o of the soft member 360 , and the opening portion 310 o (arrow direction) of the first shell 311 .

[0329] The method of connecting the vehicle interior material 130 to the sound device 30 involves the method described above with reference to Fig.16 The connection member 350 and the soft member 360 are configured together in the description, and therefore, repeated descriptions may be omitted or will be briefly given below.

[0330] Fig.18 A sound device according to another embodiment of the present disclosure is shown. Fig.19 A sound device according to another embodiment of the present disclosure is shown.

[0331] Reference Fig.18 and Fig.19 According to another embodiment of the present disclosure, the sound device 30 may include a housing 310 and a sound generating module 330. The description of the housing 310 and the sound generating module 330 may be the same as that described above with reference to Figures 3 to 12 The descriptions described 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.

[0332] The sound device 30 according to another embodiment of the present disclosure may include a coupling portion 500 connected to the vehicle interior material 130. The description of the coupling portion 500 may be the same as that described above with reference to FIG. Figures 14 to 17 The descriptions described 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.

[0333] Reference Fig.18, a housing 310 according to another embodiment of the present disclosure may include an opening portion 310o. For example, the first housing 311 may include an opening portion 310o. The opening portion 310o of the housing 310 or the first housing 311 may include two (or a pair of) opening lines (or line holes) that intersect each other. The opening portion 310o of the housing 310 or the first housing 311 may include a "+" shape. The vehicle interior material 130 may include a hole 137. The hole 137 may be arranged to correspond to the opening portion 310o. For example, the hole 137 may be arranged to correspond to the shape of the opening portion 310o. For example, the shape of the hole 137 may be the same as the shape of the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the shape of the hole 137 may be a "+" shape.

[0334] The coupling portion 500 according to another embodiment of the present disclosure may include a hollow portion 501. The hollow portion 501 may be configured to correspond to the opening portion 310o. For example, the hollow portion 501 may be configured to correspond to the shape of the opening portion 310o. The shape of the hollow portion 501 may be the same as the shape of the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the shape of the hollow portion 501 may be a "+" shape. The hook member 504 of the coupling portion 500 may be changed based on the shape of the hollow portion 501. For example, the hook member 504 may include a plurality of hook members or latches based on the "+" shape of the hollow portion 501.

[0335] Reference Fig.19 , according to another embodiment of the present disclosure, the opening portion 310o of the shell 310 or the first shell 311 may include three opening lines (or line holes) intersecting each other. The opening portion 310o of the shell 310 or the first shell 311 may include a "*" shape (asterisk shape). The vehicle interior material 130 may include a hole 137. The hole 137 may be arranged to correspond to the opening portion 310o. For example, the hole 137 may be arranged to correspond to the shape of the opening portion 310o. For example, the shape of the hole 137 may be the same as the shape of the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the shape of the hole 137 may be a "*" shape.

[0336] The hollow portion 501 according to another embodiment of the present disclosure may be configured to correspond to the opening portion 310o. For example, the hollow portion 501 may be configured to correspond to the shape of the opening portion 310o. The shape of the hollow portion 501 may be the same as the shape of the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the shape of the hollow portion 501 may be a "*" shape. The hook member 504 may be changed based on the shape of the hollow portion 501. For example, the hook member 504 may include a plurality of hook members or latches based on the "*" shape of the hollow portion 501.

[0337] According to an embodiment of the present disclosure, since the opening portion 310o is configured in a "+" shape or a "*" shape, the amount of sound discharged from the sound device 30 can be increased, and the aesthetic appearance can be enhanced. In addition, the hook member 504 can cover the hole 137 of the vehicle interior material 130, and thus the penetration of dust or foreign matter from the outside can be minimized, thereby protecting the sound device 30.

[0338] exist Fig.18 and Fig.19 According to another embodiment of the present disclosure, the sound device 30 may further include the above reference Figures 14 to 16 or Fig.17 One or more of the connecting member 350 and the soft member 360 described. For example, the shape of the hole 350o of the connecting member 350 can be set to correspond to the shape of the opening portion 310o of the housing 310. For example, the shape of the hole 350o of the connecting member 350 can be a "+" shape or a "*" shape. For example, the shape of the hole 360o of the soft member 360 can be set to correspond to the shape of the opening portion 310o of the housing 310. For example, the shape of the hole 360o of the soft member 360 can be a "+" shape or a "*" shape.

[0339] Fig. 20 A sound device according to another embodiment of the present disclosure is shown. Fig.21 Another embodiment of the present disclosure is shown in which a sound device is connected to the Fig. 20 The method of coupling the parts is shown.

[0340] Reference Fig. 20 and Fig.21 According to another embodiment of the present disclosure, the sound device 30 may include a housing 310 and a sound generating module 330. The description of the housing 310 and the sound generating module 330 may be the same as that described above with reference to Figures 3 to 13 The descriptions described 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.

[0341] According to another embodiment of the present disclosure, the housing 310 may include a protrusion 315. The first housing 311 may include a protrusion 315. The protrusion 315 may protrude from the rear surface (or outer surface) 311r of the first housing 311. For example, the protrusion 315 may protrude from the rear surface (or outer surface) 311r of the first housing 311 or the housing 310 to surround the opening 310o. Therefore, the protrusion 315 may include a hollow hole (or hole or opening hole) 315o connected to the opening 310o. The hollow portion 501 may be accommodated in the hollow hole 315o of the protrusion 315, and may be connected (or coupled) to the internal space 313 through the hollow hole 315o and the opening 310o. The protrusion 315 may be configured to be accommodated in the hole 137 in the vehicle interior material 130. For example, the coupling portion 500 may be accommodated or inserted into the hole 137, the hollow hole 315o, and the opening 310o. For example, the hook member 504 may be received or inserted into the opening portion 310o of the first housing 311 or the housing 310 through the vehicle interior material 130 (or the installation object) and the protrusion 315. The hook member 504 may be connected or coupled to the inner surface 311i of the first housing 311 or the housing 310. For example, the hook member 504 may be connected or coupled to the groove portion 311g of the housing 310 in the inner space 313 of the housing 310. For example, the hook member 504 may be coupled (or connected) to the groove portion 311g of the housing 310 in the inner space 313 of the housing 310 by a hook coupling scheme.

[0342] According to an embodiment of the present disclosure, the first housing 311 may include an inner surface 311i and an outer surface 311r. The inner surface 311i of the first housing 311 may face the vibration member 331. The outer surface 311r of the first housing 311 may be a surface opposite to the inner surface 311i of the first housing 311. For example, the protrusion 315 may protrude from the outer surface 311r of the first housing 311. The protrusion 315 may protrude from the outer surface 311r of the first housing 311 to have a hollow hole (or hole or opening hole) 315o connected to the opening portion 310o (or overlapping with the opening portion 310o).

[0343] According to another embodiment of the present disclosure, the sound device 30 may include a coupling portion 500 connected to the vehicle interior material 130. The description of the coupling portion 500 may be the same as that described above with reference to FIG. Figures 14 to 16 The descriptions described 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.

[0344] Reference Fig. 20, the coupling portion 500 may include a hollow portion 501. The hollow portion 501 may be connected or coupled to the protrusion 315. The protrusion 315 may surround the opening portion 310o of the housing 310. For example, the protrusion 315 may surround the opening portion 310o of the first housing 311. The protrusion 315 may include a hollow hole 315o corresponding to (or connected to) the opening portion 310o of the first housing 311. For example, the hollow portion 501 may be connected to the inner space 313 of the housing 310 through the opening portion 310o and the protrusion 315. For example, the hollow portion 501 may be connected to the inner space 313 of the housing 310 through the protrusion 315 and the hollow hole 315o of the opening portion 310o. For example, the coupling portion 500 may be accommodated in and coupled to the protrusion 315, and may be coupled to a surface of the vehicle interior material 130 exposed at the inner space. For example, the coupling portion 500 may be coupled to the protrusion 315 and may be connected to the inner space 313 of the housing 310 through the opening 310o. For example, the coupling portion 500 may be connected or coupled to the housing 310 in the inner space 313 of the housing 310 through the protrusion 315 and the opening 310o.

[0345] According to an embodiment of the present disclosure, the coupling portion 500 may include a hollow member 502 and a latch member 503 .

[0346] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted (or accommodated) into the protrusion 315. The hollow member 502 may be inserted (or accommodated) into the hollow hole 315o of the protrusion 315. The hollow member 502 may be inserted (or accommodated) into the protrusion 315 and may be connected or coupled to the opening portion 310o of the housing 310 or the first housing 311.

[0347] The latch member 503 may be connected to the hollow member 502. The latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the installation object). For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the installation object) equipped with the shell 310. For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the installation object) equipped with the first shell 311.

[0348] According to an embodiment of the present disclosure, the vehicle interior material 130 may include a first surface and a second surface different from (or opposite to) the first surface. The first surface may be a surface facing the housing 310. The hole 137 may be configured at the first surface and the second surface. For example, the hole 137 may be configured to pass through the first surface and the second surface. For example, the latch member 503 may be configured to pass through the hole 137 and may be configured to be coupled to the second surface (or inner surface or rear surface) 130s of the vehicle interior material 130.

[0349] According to an embodiment of the present disclosure, the coupling portion 500 may include a hook member 504 .

[0350] The hook member 504 may pass through the vehicle interior material 130 (or the installation object) and the protrusion 315, and may be accommodated or inserted into the opening portion 310o of the first shell 311. The hook member 504 may be connected or coupled to the inner surface 311i of the first shell 311. The hook member 504 may be connected or coupled to the inner surface 311i of the shell 310 in the inner space 313 of the shell 310. For example, the hook member 504 may be connected or coupled to the inner surface 311i of the first shell 311 facing the vibration member 331 in the sound generating module 330. For example, the hook member 504 may be connected or coupled to the groove portion 311g of the first shell 311. For example, the hook member 504 may be connected or coupled to the groove portion 311g of the first shell 311 by a hook coupling scheme.

[0351] Reference Fig.14 and Fig. 20 , the hook member 504 may be connected to a first side of the hollow member 502. The hook member 504 may be coupled to an inner surface 311i or a groove portion 311g of the housing 310 facing the vibration member 331 in the sound generating module 330. The hook member 504 may be coupled to the inner surface 311i or the groove portion 311g of the housing 310 in the inner space 313 of the housing 310. For example, the latch member 503 may be connected to a second side of the hollow member 502. The latch member 503 may be coupled to one surface (or inner surface or rear surface) 130s of the vehicle interior material 130 exposed at the inner space of the vehicle.

[0352] Reference Fig. 20 , the coupling portion 500 may be connected or coupled to the protrusion 315 of the housing 310 through the first hole 137 (arrow direction) of the vehicle interior material 130. For example, the coupling portion 500 may be connected or coupled to the protrusion 315 of the first housing 311 through the first hole 137 of the vehicle interior material 130.

[0353] Reference Fig.21, the hook member 504 of the coupling portion 500 may be connected or coupled to the protrusion 315 of the first shell 311. For example, the hollow member 502 of the coupling portion 500 may be inserted (or accommodated) into the hollow portion 501 of the protrusion 315 of the first shell 311 (vertical arrow direction), and thus, the hook member 504 of the coupling portion 500 is pushed (or compressed) to the center (or inside) of the hollow portion 501 (dashed line direction) by an elastic force (horizontal arrow direction), and then may be elastically restored to the groove portion 311g of the first shell 311 by an elastic restoring force, and may be connected or coupled to the protrusion 315 of the first shell 311. For example, when the coupling portion 500 is inserted into the hollow portion 501 of the protrusion 315 of the first shell 311, the slope surface 504s of the hook member 504 may facilitate the insertion of the coupling portion 500 and the compression of the hook member 504. For example, the hook member 504 may be connected or coupled to the groove portion 311g of the first housing 311. For example, the hook member 504 may be coupled to the groove portion 311g of the first housing 311 through a hook coupling scheme.

[0354] According to an embodiment of the present disclosure, the sound device 30 may be connected or coupled to the vehicle interior material 130 through the coupling portion 500. According to an embodiment of the present disclosure, the housing 310 may include the protrusion 315, and thus, the coupling portion 500 may be easily connected or coupled to the protrusion 315. Therefore, the connection process or coupling process between the vehicle interior material 130 and the sound device 30 may be simplified.

[0355] The sound device 30 according to another embodiment of the present disclosure may further include the Fig.16 or Fig.17 One or more of the connecting member 350 and the soft member 360 described. For example, one or more of the second hole 350o of the connecting member 350 and the third hole 360o of the soft member 360 may be arranged to correspond to the hollow hole 315o of the protrusion 315 of the housing 310. For example, one or more of the second hole 350o of the connecting member 350 and the third hole 360o of the soft member 360 may be arranged to correspond to the hollow hole 315o of the protrusion 315.

[0356] Fig. 22 A sound device according to another embodiment of the present disclosure is shown. Fig.23 Another embodiment of the present disclosure is shown in which a sound device is connected to the Fig. 22 The method of coupling the parts is shown.

[0357] Reference Fig. 22 and Fig.23According to another embodiment of the present disclosure, the sound device 30 may include a housing 310 and a sound generating module 330. The description of the housing 310 and the sound generating module 330 may be the same as that described above with reference to Figures 3 to 13 The descriptions described 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.

[0358] According to another embodiment of the present disclosure, the housing 310 may include a protrusion 315. The first housing 311 may include the protrusion 315. The protrusion 315 may protrude from a rear surface (or outer surface) 311r of the first housing 311.

[0359] The first housing 311 may include an inner surface and an outer surface 311r. The inner surface of the first housing 311 may face the vibration member 331. The outer surface 311r of the first housing 311 may be a surface opposite to the inner surface of the first housing 311. For example, the protrusion 315 may protrude from the outer surface 311r of the first housing 311. For example, the protrusion 315 may be the same as that described above with reference to Fig. 20 and Fig.21 The descriptions described 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.

[0360] The sound device 30 according to another embodiment of the present disclosure may include a coupling portion 500 connected to the vehicle interior material 130 .

[0361] The coupling portion 500 may be connected or coupled to the protrusion 315. Therefore, the coupling portion 500 may be configured (or integrated) as one piece with the protrusion 315. For example, the coupling portion 500 and the protrusion 315 may be configured by a dual injection molding process using different materials, but the embodiments of the present disclosure are not limited thereto. According to the embodiments of the present disclosure, the coupling portion 500 and the protrusion 315 may be configured as one part (or one component) to achieve a single material effect. The description of the coupling portion 500 may be the same as that described above with reference to FIG. Fig.14 and Fig.15 The descriptions described are substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions may be omitted or briefly given below.

[0362] The coupling portion 500 may include a hollow portion 501. The hollow portion 501 may be connected or coupled to the protrusion 315. The protrusion 315 may surround the opening portion 310o of the housing 310. For example, the protrusion 315 may surround the opening portion 310o of the first housing 311. The protrusion 315 may include an opening hole (or hollow hole) 315o corresponding to (or connected to) the opening portion 310o of the first housing 311. 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 and the opening portion 310o. For example, the hollow portion 501 may be connected to the internal space 313 of the first housing 311 through the opening hole 315o of the protrusion 315 and the opening portion 310o. For example, the hollow portion 501 may be connected to the internal space 313 of the housing 310 through the opening portion 310o of the housing 310. For example, the coupling portion 500 may be configured to be connected to the housing 310 through the first hole 137 of the vehicle interior material 130, the opening hole 315o of the protrusion 315, and the opening portion 310o of the housing 310. The first hole 137 of the vehicle interior material 130 may be connected to the opening portion 310o.

[0363] According to an embodiment of the present disclosure, the coupling portion 500 may include a hollow member 502 and a latch member 503 .

[0364] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted (or accommodated) into the protrusion 315. The hollow member 502 may be inserted (or accommodated) into the opening hole 315o of the protrusion 315. The hollow member 502 may be inserted (or accommodated) into the opening hole 315o of the protrusion 315, and may be connected or coupled to the opening portion 310o of the housing 310 or the first housing 311.

[0365] The latch member 503 may be connected to the hollow member 502. The latch member 503 may be configured to be coupled to the vehicle interior material 130. For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 equipped with the shell 310. For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 equipped with the first shell 311. For example, the latch member 503 may be configured to pass through the opening hole 315o of the protrusion 315, and may be configured to be coupled to the second surface (or inner surface or rear surface) 130s of the vehicle interior material 130.

[0366] The latch member 503 according to an embodiment of the present disclosure may be configured as a flexible material, but the embodiment of the present disclosure is not limited thereto. For example, the latch member 503 may be configured as rubber, but the embodiment of the present disclosure is not limited thereto.

[0367] According to an embodiment of the present disclosure, the coupling portion 500 and the protrusion 315 may be connected or coupled to the first hole 137 of the vehicle interior material 130 through the hollow portion 501 (arrow direction). For example, the latch member 503 may be configured as a flexible material, and thus, the sound generating module 330 or the sound device 30 may be connected or coupled to the first hole 137 of the vehicle interior material 130 through the movement (or folding or unfolding) (arrow direction) of the latch member 503.

[0368] According to an embodiment of the present disclosure, the sound device 30 may be connected or coupled to the vehicle interior material 130 through the coupling portion 500. According to an embodiment of the present disclosure, the protrusion 315 of the housing 310 may be configured (or integrated) as one body with the coupling portion 500, and thus, the connection process or coupling process between the vehicle interior material 130 and the sound device 30 may be simplified. According to an embodiment of the present disclosure, the protrusion 315 and the coupling portion 500 may be configured as one part (or one component), thereby achieving a single material effect.

[0369] The sound device 30 according to another embodiment of the present disclosure may further include the Fig.16 or Fig.17 One or more of the connecting member 350 and the soft member 360 described. For example, one or more of the second hole 350o of the connecting member 350 and the third hole 360o of the soft member 360 may be arranged to correspond to the hollow hole 315o of the protrusion 315 of the housing 310. For example, one or more of the second hole 350o of the connecting member 350 and the third hole 360o of the soft member 360 may be arranged to correspond to the hollow hole 315o of the protrusion 315.

[0370] Fig.24 A sound device according to another embodiment of the present disclosure is shown. Fig.25 According to another embodiment of the present disclosure Fig.24 An exploded perspective view of the sound device shown. Fig.24 and Fig.25 As shown in the above reference Fig.14 and Fig.16 The embodiment of the sound device 30 described above is additionally provided with a connecting member. Fig.14 and Fig.15 In the description of the sound device 30 described, other descriptions besides the description of the connecting member may be included in Fig.24 and Fig.25 In the description of the illustrated sound device 30 , and therefore, the same reference numerals refer to the same elements and repeated descriptions may be omitted.

[0371] Reference Fig.24 and Fig.25 In the sound device 30 according to another embodiment of the present disclosure, a connecting member 380 may be provided or configured between the vehicle interior material 130 and the sound generating module 330. The connecting member 380 may be configured between the first shell 311 and the vehicle interior material 130. For example, the first shell 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first shell 311 may face the vibration member 331. The outer surface of the first shell 311 may be a surface of the first shell 311 opposite to the inner surface 311i. For example, the connecting member 380 may be connected to the outer surface of the first shell 311. The connecting member 380 may be connected to the outer surface of the first shell 311. The connecting member 380 may be a coupling member, an intermediate member, a buffer member, or a pad member, but the embodiments of the present disclosure are not limited thereto.

[0372] The connection member 380 may be configured with a material different from that of 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 first coupling member 321. Because the connection member 380 is configured with a material having an adhesive force different from that of the first coupling member 321, the separation or removal process (or rework) of the connection member 380 from the vehicle interior material 130 may be easily performed in the separation or removal process (or rework) of the sound device 30 attached to the vehicle interior material 130. Therefore, the process of attaching or mounting the sound device 30 on the vehicle interior material 130 or the process of separating or attaching / removing the sound device 30 from the vehicle interior material 130 may be easily performed.

[0373] The connecting member 380 may be coupled (or attached) to the rear surface of the housing 310 and may contact (or surface contact) the first surface 130s1 of the vehicle interior material 130, but the embodiments of the present disclosure are not limited thereto. For example, in the case where the connecting member 380 is coupled (or attached) to the rear surface of the housing 310 and simply contacts (or surface contact) the first surface 130s1 of the vehicle interior material 130, in the process of separating and disassembling (or reworking) the sound device 30 from the vehicle interior material 130, the process of separating or disassembling (or reworking) the connecting member 380 from the vehicle interior material 130 without damaging the sound device 30 or the vehicle interior material 130 can be easily performed.

[0374] According to another embodiment of the present disclosure, the connecting member 380 may 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 may include rubber, but the embodiments of the present disclosure are 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 embodiments of the present disclosure are not limited thereto. For example, the 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 connection member 380 may include highly elastic rubber, but the embodiments of the present disclosure are not limited thereto.

[0375] According to an embodiment of the present disclosure, because the connecting member 380 is configured with rubber or the like, when the vibration of the shell 310 or the first shell 311 is transmitted to the internal material 130, the vibration loss can be prevented or minimized, and thus, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords can be more improved.

[0376] According to an embodiment of the present disclosure, the connection member 380 may be connected to the adhesive layer (1315; see Figure 5 The connection member 380 may be configured with a material different from that of the connection member 320 of the sound device 30.

[0377] According to an embodiment of the present disclosure, the connection member 380 may further include a hole 380o (or a fourth hole or an opening hole). For example, the connection member 380 may further include a hole 380o connected to the opening portion 310o at the housing 310 or the first housing 311 .

[0378] The hole 380o may be arranged to correspond to (or overlap) the opening portion 310o. The hole 380o may have the same shape as the opening portion 310o, but the embodiments of the present disclosure are not limited thereto. For example, the hole 380o may have the same shape as the opening portion 310o, and may have a size larger than the size of the opening portion 310o. Therefore, the sound based on the vibration of the sound generating module 330 may be output to the inner space IS of the vehicle through (or by means of) the opening portion 310o and the hole 380o. For example, the hole 380o may be an opening portion, an opening hole, a slit, a groove, a connecting hole, or an intermediate hole, but the embodiments of the present disclosure are not limited thereto.

[0379] According to an embodiment of the present disclosure, the hole 380o may correspond to (or overlap) the hole 137 of the vehicle interior material 130. The hole 380o may be between the hole 137 of the vehicle interior material 130 and the opening 310o of the housing 310. For example, the hole 380o may be between the hole 137 of the vehicle interior material 130 and the opening 310o of the first housing 311. The hole 380o may be connected to the opening 310o of the housing 310. For example, the hole 380o may be connected to the opening 310o of the first housing 311. The hole 380o may be arranged to correspond to the opening 310o. The hole 380o of the connecting member 380 may have the same size as the size of each of the opening 310o and the hole 137, or may have a size larger than the size of each of the opening 310o and the hole 137. Therefore, the sound based on the vibration of the sound generation module 330 may be output to the inner space IS of the vehicle through (or by means of) the opening portion 310 o , the hole 380 o , and the hole 137 .

[0380] 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.

[0381] 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.

[0382] like Fig.25 As shown, the connection 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.24 The deformed thickness (or compressed thickness) T1 shown. For example, when the sound device 30 is connected to the vehicle interior material 130 through the coupling portion 500, or when assembly and / or rework is completed, the thickness of the connecting member 380 can be compressed from the initial thickness T1' to the compressed thickness T1, and thus, the vibration of the housing 310 can be effectively transmitted to the vehicle interior material 130. For example, when the sound device 30 is separated (or disassembled) from the vehicle interior material 130 by disassembling the coupling portion 500, the connecting member 380 can be restored from the deformed thickness (or compressed thickness) T1 to the initial thickness T1' by the elastic restoring force.

[0383] The coupling portion 500 may be connected or coupled to the sound device 30 through the second hole 137 of the vehicle interior material 130, the hole 380o of the connection member 380, and the opening portion 310o of the first shell 311 (arrow direction). For example, in the interior space of the vehicle, the coupling portion 500 may be connected or coupled to the opening portion 310o of the first shell 311 through the second hole 137 of the vehicle interior material 130 and the hole 380o of the connection member 380. According to an embodiment of the present disclosure, in the interior space of the vehicle, the coupling portion 500 may be connected or coupled to the sound device 30 or the shell 310 through the hole 137 of the vehicle interior material 130 (arrow direction). For example, in the interior space of the vehicle, the coupling portion 500 may be accommodated or inserted into the hole 380o of the connection member 380 and the opening portion 310o of the first shell 311 through the hole 137 of the vehicle interior material 130. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or accommodated) into the opening portion 310o of the first housing 311, and may be connected or coupled to the groove portion 311g of the first housing 311 through a hook coupling scheme.

[0384] Fig.26 A sound device according to another embodiment of the present disclosure is shown.

[0385] Reference Fig.26, a vehicle interior material 130 according to another embodiment of the present disclosure may include one or more curved portions (or tortuous portions) 136. A connecting member 380 may be configured to correspond to the one or more curved portions 136. The connecting member 380 may be in contact with the one or more curved portions 136. The connecting member 380 may be in direct contact with the one or more curved portions 136. For example, the connecting member 380 may be in direct contact with the one or more curved portions 136 without a medium or intermediate member.

[0386] The sound device 30 or the housing 310 may be connected or coupled to one or more curved portions 136 of the vehicle interior material 130 through a connecting member 380. For example, the connecting member 380 may be disposed between the housing 310 and one or more curved portions 136 of the vehicle interior material 130. For example, the connecting member 380 may be disposed between the first housing 311 and one or more curved portions 136 of the vehicle interior material 130. For example, the first housing 311 may be connected or coupled to one or more curved portions 136 of the vehicle interior material 130 through a connecting member 380.

[0387] The thickness T1 of the connecting 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 connecting 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 connecting member 380 may be 0.5 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the thickness T1 of the connecting member 380 may be 0.5 mm to 3 mm, but the embodiments of the present disclosure are not limited thereto. For example, the connecting member 380 may have a thickness T1 that is increased by the coupling force between the coupling portion 500 and the first shell 311. Fig.25 The illustrated initial thickness T1 ′ is compressed (or shrunk). Therefore, based on the coupling force between the coupling portion 500 and the first housing 311 , the connection member 380 may surface-contact the vehicle interior material 130 including the one or more bent portions 136 .

[0388] According to an embodiment of the present disclosure, the sound based on the vibration of the sound generating module 330 can be output to the inner space of the vehicle through (or by means of) the opening portion 310o, the hole 380o, and the second hole 137. In addition, the vibration of the shell 310 or the first shell 311 based on the sound (or sound pressure level or sound wave) based on the vibration of the sound generating module 330 can be effectively transmitted to the vehicle interior material 130 including one or more curved portions 136 through the connecting member 380 without vibration loss, and the vehicle interior material 130 including one or more curved portions 136 can vibrate based on the vibration of the shell 310 or the first shell 311 transmitted through the connecting member 380 to be output to the inner space of the vehicle, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords can be more improved.

[0389] The sound device 30 according to another embodiment of the present disclosure may include a housing 310 and a connecting member 380. Therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cord may be more improved, and the attachment or detachment process of the sound generating module 330 attached to the vehicle interior material 130 through the connecting member 380 configured with a rubber material may be easily performed.

[0390] Fig. 27 A sound device according to another embodiment of the present disclosure is shown. Fig.28 The interior of a sound device according to another embodiment of the present disclosure is shown. Figure 27 to Figure 28 As shown in the above reference Figures 1 to 26 The embodiment described above additionally configures at least one hole at the sound device 30. Figures 1 to 26 In the description of the described sound device 30, other descriptions besides the description of at least one hole may be included in Fig. 27 and Fig.28 In the description of the illustrated sound device 30 , and therefore, the same reference numerals refer to the same elements and repeated descriptions may be omitted.

[0391] Reference Fig. 27 and Fig.28 , the sound device 30 according to another embodiment of the present disclosure may further include one or more holes 331o.

[0392] One or more holes 331o may be configured at the vibration member 331. 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.

[0393] The sound generating module 330 according to an embodiment of the present disclosure may include a vibration member 331 having one or more holes 331 o and vibration devices 333 and 335 disposed at the vibration member 331 .

[0394] One or more holes 331o may be configured to adjust the flow of air 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 first hole, a vent, an airflow hole, a vent, a 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.

[0395] 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 elliptical shape, or a quadrilateral shape, but embodiments of the present disclosure are not limited thereto.

[0396] 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 to each other (interconnected) by 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 thus 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 thus, the sound characteristics and / or sound pressure level characteristics can be further improved.

[0397] According to an embodiment of the present disclosure, the internal space 313 may be between the first surface of the sound generating module 330 and the first shell 311, and may be connected to the opening portion 310o. The internal spaces 313 may be connected to each other (interconnected) through one or more holes 331o. The shell 311 may include a second space 313b between the second shell 312 and the second surface of the sound generating module 330 opposite to the first surface. The internal space 313 and the second space 313b may be connected to each other (interconnected) through one or more holes 331o.

[0398] 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 each vibration device 333 and 335. For example, one or more holes 331o may be disposed adjacent to the side surface of each of the vibration devices 333 and 335. For example, the distance between one or more holes 331o and each of the vibration devices 333 and 335 may be less than the distance between one or more holes 331o and the side wall (or side surface) of the housing 310. For example, when one or more holes 331o are disposed at a position away from each of 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.

[0399] 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, and the vibration devices 333 and 335 are therebetween. For example, the vibration member 331 may include a first peripheral area adjacent to the first side surface of each of the vibration devices 333 and 335, and a second peripheral area opposite to the second side opposite to the first side of each of the vibration devices 333 and 335. 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 ​​each 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, 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.

[0400] According to an embodiment of the present disclosure, the vibration devices 333 and 335 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.

[0401] 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.

[0402] According to an embodiment of the present disclosure, one or more holes 331o do 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 cords can be enhanced.

[0403] Each of the 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 elliptical shape, or a quadrilateral shape, but the embodiment of the present disclosure is not limited thereto.

[0404] According to an embodiment of the present disclosure, the sound generated based on the vibration (or driving) 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 one or more holes 331o, and can be output (or radiated) through the opening portion 310o 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.

[0405] Fig.29 A sound device according to another embodiment of the present disclosure is shown. Fig.29 Shown by modifying the above reference Figures 1 to 28 Therefore, in the following description, the housing will be described in detail, and other elements may be the same as those described above. Figures 1 to 28The elements described in the accompanying drawings are substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below.

[0406] Reference Fig.29 In the sound device 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 28 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 .

[0407] The housing 310 or the first housing 311 may be connected to the sound generating module 330, wherein the internal space 313 is 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, wherein the internal space 313 is between the housing 310 or the first housing 311 and the rear peripheral portion of the vibration member 331.

[0408] 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.

[0409] In the case where the housing 310 is provided with 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 the first housing 311, the sound characteristics and / or sound pressure level characteristics of a 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.

[0410] According to another embodiment of the present disclosure, since the sound device 30 includes 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 removal process of the sound generating module 330 attached to the vehicle interior material 130 can be easily performed.

[0411] Fig.30 A sound device according to another embodiment of the present disclosure is shown. Fig.30 As shown in the above reference Fig.29The embodiment of the sound device 30 described above is additionally configured with one or more holes. 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. Figures 1 to 29 The elements described in the accompanying drawings are substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below.

[0412] Reference Fig.30 The sound device 30 according to another embodiment of the present disclosure may further include one or more holes 331o. The one or more holes 331o may be configured at the vibration member 331. The description of the one or more holes 331o may be substantially the same as Fig. 27 and Fig.28 The descriptions of the present invention are the same, and thus, the same reference numerals refer to the same elements, and a repeated description may be omitted or will be briefly given below.

[0413] According to another embodiment of the present disclosure, the sound device 30 may include a first housing 311 and one or more holes 331o, or may include the first housing 311. When the sound device 30 includes the first housing 311 and the one or more holes 331o, the sound characteristics and / or sound pressure level characteristics of each of the low-pitched vocal band and the middle-pitched vocal band may be further enhanced, and the sound reproduction frequency band may be expanded. When the sound device 30 includes the first housing 311, the sound characteristics and / or sound pressure level characteristics of the middle-low pitch vocal band may be further enhanced, and the sound reproduction frequency band may be expanded.

[0414] According to another embodiment of the present disclosure, since the sound device 30 includes a first shell 311, one or more holes 331o and at least one or more connecting members 380, 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 attachment or removal process of the sound generating module 330 attached to the vehicle interior material 130 can be easily performed.

[0415] Fig.31 A sound device according to another embodiment of the present disclosure is shown. Fig.31 As shown in the above reference Fig.29 The embodiment of the sound device 30 described above is additionally provided with a protective member 410. Therefore, in the following description, the protective member 410 will be described in detail, and other elements may be the same as those described above. Fig.29 The elements of the description are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below.

[0416] Reference Fig.31, the sound device 30 according to the embodiment of the present disclosure may further include a protection member 410 .

[0417] The protection member 410 according to an embodiment of the present disclosure may be disposed at the sound generation module 330. For example, the protection member 410 may cover the sound generation module 330. For example, the protection member 410 may be disposed at the second vibration device 335. For example, the protection member 410 may cover the second vibration device 335.

[0418] According to an embodiment of the present disclosure, the protective member 410 may be configured with rubber or sponge, etc., but the embodiments of the present disclosure are 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 embodiments of the present disclosure are not limited thereto. For example, the protective member 410 may include rubber, 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 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 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.

[0419] 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 cords can be more supplemented, and the sound device 30 can be protected. For example, the protective member 410 may be a sealing member, a packaging member, or a buffer member, but the embodiments of the present disclosure are not limited thereto.

[0420] According to an embodiment of the present disclosure, the protection member 410 may be configured with a material different from that of the first coupling member 321. For example, the protection member 410 may be configured with a material having an adhesive force different from that of the first coupling member 321. The protection member 410 may be 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 protection member 410 may protect the sound device 30. For example, the protection member 410 may be configured with rubber such as EPDM, and thus, the sound pressure level of the low-pitched vocal cord may be enhanced and the sound device 30 may be protected.

[0421] 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 device 330. 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 device 330. The protective member 410 may be fixed to the vibration member 331 and / or the second vibration device 335 to protect the vibration member 331 and / or the second vibration device 335.

[0422] 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.

[0423] The protective member 410 may have the same shape as the vibration member 331, but the embodiments of the present disclosure are not limited thereto. For example, the size of the protective member 410 may be 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.

[0424] 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.

[0425] Fig.32 A sound device according to another embodiment of the present disclosure is shown. Fig.32 As shown in the above reference Fig.30The embodiment of the sound device 30 described above is additionally provided with a protective member 410. 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.30 The elements of the description are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below.

[0426] Reference Fig.32 , the protective member 410 according to an embodiment of the present disclosure may be disposed at the sound generating module 330. For example, the protective member 410 may cover the sound generating module 330. For example, the protective member 410 may be disposed at the second vibration device 335. For example, the protective member 410 may cover the second vibration device 335. The protective member 410 may be the same as that described above with reference to Fig.31 The described protection members 410 are the same or substantially the same, and thus, repeated descriptions may be omitted.

[0427] The sound device 30 according to another embodiment of the present disclosure may further include at least one hole (or connection hole) 410 h at the protection member 410 .

[0428] The at least one hole 410h of the protection member 410 may be configured to correspond to the one or more holes 331o at the vibration member 331. For example, the at least one hole 410h of the protection member 410 may be connected to the one or more holes 331o at the vibration member 331. For example, the at least one or more holes 410h may be a second hole, a ventilation hole, an air flow hole, a duct hole, a second connection hole, a second communication hole, or a second space connection portion, but embodiments of the disclosure are not limited thereto.

[0429] According to another embodiment of the present disclosure, since the sound device 30 includes at least one or more of the following: a first shell 311, one or more holes 331o, and at least one hole 410h of a 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.

[0430] 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.

[0431] Fig.33 A sound device according to another embodiment of the present disclosure is shown. Fig.34A coupling portion according to another embodiment of the present disclosure is shown. Fig.33 and Fig.34 Shown by modifying the above reference Figures 14 to 32 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 14 to 32 The elements of the description are substantially the same, and thus the same reference numerals refer to the same elements, and repeated descriptions are omitted or will be briefly given below.

[0432] Reference Fig.33 and Fig.34 In the sound device 30 according to another embodiment of the present disclosure, the description of the coupling portion 500 may be the same as Figures 14 to 32 The descriptions of the present invention 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.

[0433] The coupling portion 500 may further include a chamfered portion 503 a .

[0434] The coupling portion 500 may include a hollow portion 501 connected to the inner space 313 of the housing 310, and include a chamfered portion 503a. The chamfered portion 503a may be configured at the hollow portion 501. For example, the hollow portion 501 may be connected to the inner space 313 of the housing 310 through the opening portion 310o of the housing 310.

[0435] The vehicle interior material 130 may include a first surface and a second surface different from (or opposite to) the first surface. The first surface may be a surface facing the housing 310. The vehicle interior material 130 may include holes 137 configured at the first surface and the second surface. For example, the hole 137 of the vehicle interior material 130 may be configured to pass through the first surface and the second surface. For example, the latch member 503 may pass through the hole (or through hole) 137 and may be coupled to the second surface (or indoor surface or rear surface) 130s of the vehicle interior material 130. For example, the latch member 503 may include a chamfered portion 503a. For example, the latch member 503 may overlap with the second surface 130s of the vehicle interior material 130.

[0436] The chamfered portion 503a according to another embodiment of the present disclosure may include a non-rectangular shape (or a non-right angle 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. The sound characteristics and / or sound pressure level characteristics may be changed based on the curvature of the chamfered portion 503a. For example, compared with the case where the chamfered portion 503a has a rectangular shape, in the case where the chamfered portion 503a has a non-rectangular shape, it can be seen that the peak and / or the depression 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 can be further enhanced. 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.

[0437] Reference Fig.34 , the coupling portion 500 may include a first side portion (or lower surface) 500a and a second side portion (or upper surface) 500b. The second side portion 500b may be opposite to the first side portion 500a. For example, the chamfered portion 503a may be configured in an area between the second side portion 500b and the hollow portion 501. For example, the chamfered portion 503a may be configured in a non-rectangular shape in an area between the inner surface (or inner surface) of the hollow member 502 and the upper surface of the hook member 503. For example, the hollow portion 501 may be connected to the internal space 313 through the opening portion 310o of the housing 310.

[0438] According to another embodiment of the present disclosure, the hollow portion 501 may have a "1" shape, but the embodiments of the present disclosure are not limited thereto. The hollow portion 501 may have a "1" shape parallel to the short side direction or the second direction Y of the shell 310, but the embodiments of the present disclosure are not limited thereto. For example, the hollow portion 501 may have a slit shape including a short axis and a long axis, but the embodiments of the present disclosure are not limited thereto. For example, the long axis of the hollow portion 501 may be parallel to the short side direction or the second direction Y of the shell 310, but the embodiments of the present disclosure are not limited thereto. For example, the short axis of the hollow portion 501 may be parallel to the first direction X or the long side direction of the shell 310, but the embodiments of the present disclosure are not limited thereto. For example, the hollow portion 501 may have the above reference Fig.18 and Fig.19The “*” shape or the “+” shape is described, but the embodiments of the present disclosure are not limited thereto. The shape of the chamfered portion 503 a may be identically applied based on various shapes of the hollow portion 501 .

[0439] According to another embodiment of the present disclosure, the coupling portion 500 may be configured to have a width W. For example, the coupling portion 500 may include a latch member 503 having a width W. For example, the latch member 503 may be configured to have a width W. For example, the width W of the latch member 503 may be a length extending from an outer surface (outer circumferential surface) of the hollow portion 501 in a direction parallel to the vehicle interior material 130 (or the first direction X). For example, the width W of the latch member 503 may be a length extending from a lower outer surface of the hollow member 502 in a direction parallel to the vehicle interior material 130 (or the first direction X). The latch member 503 having a width W may overlap at least one of the vehicle interior material 130, the connecting member 380, and the housing 310. For example, the width W of the latch member 503 may be the same as the short side length of the hollow portion 501. The width W of the latch member 503 or the short side length of the hollow portion 501 may be 1 mm or more, but embodiments of the present disclosure are not limited thereto. For example, the width W of the latch member 503 or the short side length of the hollow portion 501 may be 1 mm to 5 mm, but embodiments of the present disclosure are not limited thereto.

[0440] According to an embodiment of the present disclosure, as the width W of the latch member 503 increases, the sound pressure level can be enhanced, and dust or particles flowing in from the outside can be reduced or minimized. According to an embodiment of the present disclosure, the width W of the latch member 503 can be 1 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the width W of the latch member 503 can be 1 mm to 5 mm, but the embodiments of the present disclosure are not limited thereto.

[0441] According to an embodiment of the present disclosure, since the width W of the latch member 503 is configured to be 1 mm or more, the sound characteristics and / or the 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 latch member 503 is configured to be 1 mm or more, dust or particles flowing in from the outside can be reduced or minimized.

[0442] According to another embodiment of the present disclosure, the coupling portion 500 may be configured to have a length L. The length L of the coupling portion 500 may be a length that enables the sound device 30 to be disposed at the vehicle interior material 130. For example, the length L of the coupling portion 500 may be less than the sum of the thicknesses of the vehicle interior material 130, the connection member 380, and the housing 310. The length L of the coupling portion 500 may correspond to the length of the hollow portion 501 with respect to the thickness direction Z of the vehicle interior material 130. The length L of the coupling portion 500 may correspond to the length between the latch member 503 and the hook member 504. For example, the length L of the coupling portion 500 may be the length between the upper surface of the latch member 503 contacting the interior material 130 and the lower surface of the hook member 504 contacting the housing 310. The length L of the coupling portion 500 may be 10 mm or more, but embodiments of the present disclosure are not limited thereto. For example, the length L of the coupling portion 500 may be 10 mm or more and less than 19 mm, but embodiments of the present disclosure are not limited thereto.

[0443] According to another embodiment of the present disclosure, the sound device 30 may be configured to include one or more of the shape of the coupling portion 500, the width W of the coupling portion 500, and the length L of the coupling portion 500, thereby providing a sound device 30 in which the sound characteristics and / or the sound pressure level characteristics are more enhanced. For example, as the length L of the coupling portion 500 decreases, the sound pressure level characteristics may be enhanced. According to an embodiment of the present disclosure, the length of the coupling portion 500 may be 10 mm or more, but the embodiments of the present disclosure are not limited thereto. For example, the length L of the coupling portion 500 may be 10 mm or more and less than 19 mm, but the embodiments of the present disclosure are not limited thereto. For example, when the length L of the coupling portion 500 is less than 10 mm, the sag and / or peak of the sound may 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 coupling portion 500 is configured to be 10 mm or greater and less than 19 mm, 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 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.

[0444] Refer to above Fig.33 and Fig.34 The coupling portion 500 described above can be applied to the Figure 26 to Figure 32 For example, the above referenced sound device 30 may be Figure 26 to Figure 32 The coupling portion 500 of the sound device 30 described above is changed to Fig.33 and Fig.34 For example, in the above reference Figure 26 to Figure 32In the description of the sound device 30 described above, other descriptions except for the description of the coupling portion 500 may be included in the description of Fig.33 and Fig.34 In the description of the sound device 30 shown, and therefore, repeated descriptions can be omitted. For example, the sound device 30 according to another embodiment of the present disclosure may include at least one or more of the first shell 311, one or more holes 331o and at least one hole 410h of the protective member 410, and may be configured to include one or more of the shape of the coupling portion 500, the width W of the coupling portion 500 and the length L of the coupling portion 500, 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.

[0445] Fig.35 A sound device according to another embodiment of the present disclosure is shown. Fig.35 The above reference Fig.24 Another embodiment of the connection member 380 is described. Therefore, in the following description, repeated descriptions of other elements except the connection member 380 are omitted or will be briefly given below.

[0446] In configuration Fig.24 In the case of the connecting member 380, the inventors of the present disclosure have recognized that the sound characteristics and / or sound pressure level characteristics are reduced because the peripheral portion of the connecting member 380 is not connected to or is not in contact with the vehicle interior material 130. 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 is not in contact with 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 performed extensive research and experiments. Based on the extensive research and experiments, the inventors of the present disclosure 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.

[0447] Reference Fig.35 , the sound device 30 according to another embodiment of the present disclosure may further include a connecting member 380 .

[0448] 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, which is surrounded by a second portion corresponding to the peripheral portion of the housing 310.

[0449] According to an embodiment of the present disclosure, the first portion of the connection member 380 may include an opening hole 380o connected to the inner space 313 of the housing 310. For example, the first portion of the connection member 380 may include an opening hole 380o connected to the inner space 313 of the first housing 311.

[0450] According to an embodiment of the present disclosure, the housing 310 or the first housing 311 may include at least 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.

[0451] 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.

[0452] 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.

[0453] According to an embodiment of the present disclosure, the second portion of the connecting member 380 may have a thickness "T1+T2" thicker than the first portion, and therefore, the peripheral portion of the connecting 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 connecting 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 shell 310 may be transmitted to the vehicle interior material 130 without losing the vibration (or vibration transmission) at the peripheral portion of the shell 310. The vibration at the peripheral portion of the shell 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 strengthened. Therefore, the sound generated by the vibration of the sound device 30 may be transmitted to the vehicle interior material 130 without being lost, and therefore, the sound of the low-pitched vocal cords may be further enhanced. For example, the sound generated from the vibration of the sound device 30 can be transmitted to the vehicle interior material 130 through the opening portion 310o and the outer portion of the shell 310, and therefore, the efficiency of the vibration transmitted from the shell 310 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.

[0454] 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 .

[0455] 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 of the first housing 311. The first connecting member 381 may be connected to (or attached to) the first to third areas 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 of the first housing 311.

[0456] According to an embodiment of the present disclosure, the first connection member 381 may include an opening hole 380o at a first portion and connected to the inner space 313 of the housing 310. For example, the first connection member 381 may include an opening hole 380o at a first portion and connected to the inner space 313 of the first housing 311.

[0457] 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.

[0458] 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.

[0459] 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.

[0460] The first connecting member 381 can be Fig.24 The described connection members 380 are substantially the same, and thus, repeated descriptions may be omitted.

[0461] 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, 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.

[0462] 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 (or Young's modulus) than the coupling member 320.

[0463] 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.

[0464] 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.

[0465] 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.

[0466] 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.

[0467] 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.

[0468] Fig.36 Another embodiment according to the present disclosure is shown. Fig.35 The connection method between the sound device and the coupling part shown in FIG.

[0469] Reference Fig.35 and Fig.36 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 overlaps with the shell 310 or the first shell 311 (or is connected to 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 portion (or the second portion) of the first connecting member 381.

[0470] The housing 310 or the first housing 311 may be disposed on the vehicle interior material 130 so that the opening portion 310o overlaps with (or is connected to) the hole 137 of the vehicle interior material 130. At the interior space of the vehicle, the coupling portion 500 may be connected or coupled to the sound device 30 or the housing 310 through the hole 137 (arrow direction) of the vehicle interior material 130. For example, at the interior space of the vehicle, the coupling portion 500 may be connected or coupled to the sound device 30 or the housing 310 through the second hole 137 of the vehicle interior material 130 and the hole 380o (arrow direction) of the first connecting member 381. For example, at the interior space of the vehicle, the coupling portion 500 may be accommodated or inserted into the hole 137 of the vehicle interior material 130, the hole 380o of the first connecting member 381, and the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or received) into the opening portion 310 o of the first housing 311 and may be connected or coupled to the groove portion 311 g of the first housing 311 based on the hook coupling scheme.

[0471] Therefore, the first shell 311 can be connected (or contact) to the vehicle 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 vibration device.

[0472] 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 a pressure applied from the housing 310 through 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 a 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 sound device 30 is separated (or disassembled) from the vehicle interior material 130 by disassembling the coupling portion 500, the first connection member 381 may be restored from the deformed thickness (or compressed thickness) T1 to the initial thickness T1' by an elastic restoring force.

[0473] 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 T1' to the compressed thickness T1 based on the pressure applied by 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) first connection member 381 and the first portion of the second connection member 381. For example, when the sound device 30 is separated (or disassembled) from the vehicle interior material 130 by disassembling the coupling portion 500, the second connection member 382 may be restored from the deformed thickness (or compressed thickness) T2 to the initial thickness T2' by the elastic restoring force.

[0474] 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 disassembly between the outer peripheral 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 peripheral portion of the shell 310 or the first shell 311 can be transmitted to the vehicle interior material 130 without losing the vibration (or vibration transmission) at the outer peripheral 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.

[0475] Refer to above Fig.35 and Fig.36 The sound device 30 described above may also include Fig.30 The one or more holes 331o described above may also include Fig.31 The protective member 410 described above may also include Fig.32 The one or more holes 331o, the protective member 410, and the at least one hole 410h of the protective member 410 are described, and therefore, repeated descriptions can be omitted. For example, the sound device 30 according to another embodiment of the present disclosure may include at least one or more of the first shell 311, the one or more holes 331o, and the at least one hole 410h of the protective member 410, and may be configured to include one or more of the shape of the coupling portion 500, the width W of the coupling portion 500, and the length L of the coupling portion 500, 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.

[0476] Fig.37 A sound device according to another embodiment of the present disclosure is shown. Fig.37 The above reference Fig.35 and Fig.36 Therefore, in the following description, repeated descriptions of other elements except the connecting member 380 are omitted or may be briefly given below. Fig.35 and Fig.36 The description of the housing 310 or the first housing 311 and the description of the connecting member 380 may be included in the description of Fig.37 in the description.

[0477] Reference Fig.37, the sound device 30 according to another embodiment of the present disclosure may further include a connecting member 380 .

[0478] The connecting member 380 may include a first portion and a second portion. The first portion of the connecting member 380 may include an opening hole 380o connected to the inner space 313 of the housing 310. For example, the first portion of the connecting member 380 may include an opening hole 380o connected to the inner space 313 of the first housing 311. The housing 310 or the first housing 311 may include a first area A1, a second area A2, and a third area A3.

[0479] 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.

[0480] According to an embodiment of the present disclosure, the second portion of the connecting member 380 may have a thickness T4 thicker than the first portion, and therefore, the peripheral portion of the connecting member 380 may be connected to or in contact with the vehicle interior material 130 without being partially disassembled (or lifted). Therefore, the peripheral portion of the connecting member 380 may be prevented from being partially disassembled (or lifted) from the vehicle interior material 130, and the vibration at the peripheral portion of the housing 310 may be transmitted to the vehicle interior material 130 without losing the vibration (or vibration transmission) 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 strengthened. Therefore, the sound generated by the vibration of the sound device 30 may be transmitted to the vehicle interior material 130 without being lost, and therefore, the sound of the low-pitched vocal cords may be further enhanced. For example, the sound generated from the vibration of the sound device 30 can be transmitted to the vehicle interior material 130 through the opening portion 310o and the outer portion of the shell 310, and therefore, the efficiency of the vibration transmitted from the shell 310 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.

[0481] 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 .

[0482] The first connecting member 383 may be connected to the housing 310. The first connecting member 383 may be at the first part. The first connecting member 383 may be only at the first part of the first part and the second part. The first connecting member 383 may be connected to (or attached to) the first housing 311 of the housing 310. For example, the first connecting member 383 may be connected to (or attached to) the rear surface of the first housing 311. The first connecting member 383 may be connected to (or attached to) the rear surface of the first housing 311 corresponding to the first part of the first part and the second part. For example, the first connecting 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 connecting 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.

[0483] According to an embodiment of the present disclosure, the first connection member 383 may include an opening hole 380o at a first portion and connected to the inner space 313 of the housing 310. For example, the first connection member 383 may include an opening hole 380o at a first portion and connected to the inner space 313 of the first housing 311.

[0484] 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 of the second part of the first part and the second part of the first housing 311. 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 area to the third area A1, A2 and A3 of the housing 310.

[0485] 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.

[0486] 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.

[0487] The first connecting member 383 may include the same material (or substance) as 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 be configured with ethylene propylene diene rubber (or ethylene propylene diene M-grade rubber), ethylene propylene rubber, or polyurethane rubber.

[0488] 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.

[0489] 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 shrunk 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.

[0490] 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 in the range of 0.5 mm to 3 mm. For example, in 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.

[0491] 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 further improved.

[0492] According to an embodiment of the present disclosure, a connecting member 380 including a first connecting member 383 and a second connecting member 384 having different thicknesses T3 and T4 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 vocal band are further enhanced. According to an embodiment of the present disclosure, since the second connecting member 384 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 vocal band may be further enhanced.

[0493] Fig.38 Another embodiment according to the present disclosure is shown. Fig.37 The connection method between the sound device and the coupling part shown in FIG.

[0494] Reference Fig.37 and Fig.38 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 surface (or first part) of the shell 310 or the first shell 311 so that the hole 380o overlaps with the shell 310 or the first shell 311 (or is connected to 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.

[0495] The housing 310 or the first housing 311 may be disposed on the vehicle interior material 130 so that the opening portion 310o overlaps with (or is connected to) the hole 137 of the vehicle interior material 130. At the inner space (or indoor space) of the vehicle, the coupling portion 500 may be connected or coupled to the sound device 30 or the housing 310 through the hole 137 (arrow direction) of the vehicle interior material 130. For example, at the inner space of the vehicle, the coupling portion 500 may be connected or coupled to the sound device 30 or the housing 310 through the second hole 137 of the vehicle interior material 130 and the hole 380o (arrow direction) of the first connecting member 383. For example, at the inner space of the vehicle, the coupling portion 500 may be accommodated or inserted into the hole 137 of the vehicle interior material 130, the hole 380o of the first connecting member 383, and the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be connected or coupled to the opening portion 310o of the first housing 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or accommodated) into the opening portion 310o of the first housing 311, and may be ...

Claims

1. A sound device, comprising: a sound generating module, the sound generating module comprising a vibration member and a vibration device arranged at the vibration member; as well as a housing connected to the vibrating member with an internal space therebetween, Wherein, a portion of the vibration device is accommodated at the vibration member.

2. The sound device according to claim 1, wherein The vibration member includes a groove portion that receives the portion of the vibration device.

3. The sound device according to claim 2, wherein: The vibration device includes an electrode layer received at the groove portion of the vibration member.

4. The sound device according to claim 1, in, The vibration device includes one or more vibration generators, and A portion of each vibration generator is accommodated at the vibration member.

5. The sound device according to claim 4, in, Each vibration generator includes a vibration generating portion, and Part of the vibration generating unit is accommodated in the vibration member.

6. The sound device according to claim 5, wherein: Each vibration generator further includes a cover member covering the vibration generating portion.

7. The sound device according to claim 5, wherein: The vibration device further includes a cover member attached to the vibration member to cover the vibration generating portion.

8. The sound device according to claim 5, in, The vibration generating unit comprises: a vibrating portion including a piezoelectric material; a first electrode portion at a first surface of the vibration portion; and a second electrode portion at a second surface of the vibration portion different from the first surface, Among them, one of the first electrode part and the second electrode part is accommodated at the vibration member.

9. The sound device according to claim 8, wherein: The vibration unit comprises: a plurality of inorganic material portions including the piezoelectric material; and an organic material portion between the plurality of inorganic material portions.

10. The sound device according to claim 8, in, The second electrode portion is accommodated at the vibration member, and wherein each vibration generator further comprises: a cover member covering the first electrode portion; and A signal supply member is electrically connected to the first electrode portion and the second electrode portion.

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