Acoustic device and transportation device including the same

Abstract

To provide an acoustic device that improves acoustic characteristics and / or sound pressure characteristics, and a transportation device including the same.SOLUTION: An acoustic device 30 includes an acoustic generating module 330 including a vibrating member 331 and vibrating devices 333, 335 configured on the vibrating member, and an enclosure 310 connected to the vibrating member by a coupling member 320 across an internal space 313, with a portion of the vibrating device housed in the vibrating member.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This disclosure relates to an acoustic device and a transportation device including the same. [Background technology]

[0002] The vehicle may include an audio device that outputs sound in response to an audio signal output from a multimedia device such as a car audio system. For example, the audio device applied to the vehicle may include front speakers and rear speakers configured using a coil system.

[0003] However, the audio system in a vehicle has a limit in outputting multi-channel realistic sound or stereo sound through the front and rear speakers. The audio system in a vehicle can output stereo sound when the number of speakers is increased, but there is a limit in increasing the number of speakers due to the size of the speakers due to the coil type and the spatial constraints within the vehicle. Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present specification have recognized the above problems and conducted various studies and experiments to improve the acoustic characteristics and / or sound pressure characteristics of a vehicle acoustic device. Through various studies and experiments, the inventors of the present specification have invented an acoustic device capable of improving the acoustic characteristics and / or sound pressure characteristics and a transportation device including the same.

[0005] An object of the present invention is to provide an acoustic device capable of improving acoustic characteristics and / or sound pressure characteristics, and a transportation device including the same.

[0006] The problems to be solved by one or more embodiments of the present specification are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] Additional features, advantages, and embodiments of the present specification will be set forth in part in the description that follows, and in part will be apparent from the specification and will be understood by examples of the inventive concepts provided therein. Other features, advantages, and embodiments of the inventive concepts will be realized and attained by the description, claims, and appended drawings as provided herein or which may be derived therefrom.

[0008] An acoustic device according to one or more embodiments of the present specification includes an acoustic generating module including a vibrating member and a vibrating device configured on the vibrating member, and an enclosure coupled to the vibrating member across an internal space, and a portion of the vibrating device may be housed in the vibrating member.

[0009] A transportation device according to one or more embodiments of the present specification includes an interior material exposed to an interior space and one or more sound generating devices disposed on the interior material and outputting sound into the interior space, the one or more sound generating devices including an acoustic device, the acoustic device including a sound generating module including a vibrating member and a vibrating device configured on the vibrating member, and an enclosure connected to the vibrating member across an interior space, and a portion of the vibrating device may be housed in the vibrating member.

[0010] Specific matters relating to the various aspects of the present specification other than the means for solving the problems mentioned above are included in the following description and drawings. Effect of the Invention

[0011] Acoustic devices according to one or more embodiments of the present disclosure, and transportation devices including same, may have improved acoustic and / or sound pressure characteristics.

[0012] An acoustic device according to one or more embodiments of the present disclosure and a transportation device including the same may have improved acoustic characteristics and / or sound pressure characteristics in a range of frequencies, including low-frequency frequencies.

[0013] The acoustic device according to one or more embodiments of the present specification and the transportation device including the same may be configured with a vibrating member including one or more holes, thereby improving the acoustic characteristics and / or sound pressure characteristics in a range of frequencies including low-frequency frequencies.

[0014] In the acoustic device according to one or more embodiments of the present specification and the transportation device including the same, the signal supply member and the vibration generating unit may be constructed as a single part, thereby achieving the effect of uni-materialization.

[0015] In accordance with one or more embodiments of the present disclosure, the acoustic device and the transportation device including the same may have the protrusion and the coupling portion constructed from a single piece, thereby providing the effect of uni-materialization.

[0016] In the acoustic device according to one or more embodiments of the present specification and a transportation device including the same, by configuring a protective member on the acoustic device, the acoustic characteristics and / or sound pressure characteristics can be further improved, the sound reproduction band can be expanded, and the acoustic device can be protected.

[0017] In an acoustic device according to one or more embodiments of the present specification and a transportation device including the same, a connecting member is provided between the vehicle interior material and the enclosure, so that the acoustic characteristics and / or sound pressure characteristics can be improved in a range of frequencies including low-frequency frequencies.

[0018] In an acoustic device according to one or more embodiments of the present specification and a transportation device including the same, by configuring a joint having a non-right-angle shape, the acoustic characteristics and / or sound pressure characteristics in a frequency range including the low frequency range can be improved, and peaks and / or dips in the high frequency range can be improved, thereby improving the sound pressure balance characteristics or sound pressure flatness characteristics.

[0019] In the acoustic device and the transportation device including the same according to one or more embodiments of the present specification, the width and / or length of the coupling portion may be set and configured to improve the acoustic characteristics and / or sound pressure characteristics in a frequency range including the low frequency range, and the peaks and / or dips in the high frequency range may be improved, thereby improving the sound pressure balance characteristics or sound pressure flatness characteristics.

[0020] The acoustic device and the transportation device including the same according to one or more embodiments of the present specification may be configured to include connecting members having different thicknesses, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0021] The above-mentioned problems to be solved, means for solving the problems, and effects do not specify essential features of the claims, and the scope of the claims is not limited by the matters described in the contents of the invention. [Brief description of the drawings]

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate aspects and embodiments of the invention and, together with the description, may serve to explain the principles of the invention.

[0023] [Figure 1] 1 is a diagram showing an acoustic device for a vehicle according to an embodiment of the present specification; [Diagram 2] FIG. 13 is a diagram showing a vehicle acoustic device according to another embodiment of the present specification. [Diagram 3] FIG. 1 illustrates an audio device according to an embodiment of the present specification. [Figure 4] FIG. 4 is an exploded perspective view of the acoustic device shown in FIG. 3 according to one embodiment of the present specification. [Diagram 5] FIG. 5 is a cross-sectional view of a vibration device of the sound-generating module shown in FIGS. 3 and 4 according to one embodiment of the present specification. [Figure 6] 6 is a diagram showing the vibrating part shown in FIG. 5 according to another embodiment of the present specification. [Figure 7]6 is a diagram showing the vibrating part shown in FIG. 5 according to another embodiment of the present specification. [Figure 8] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 9] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 10] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 11] 9 is a cross-sectional view of a vibration device of the sound-generating module shown in FIG. 8 according to one embodiment of the present specification. [Figure 12] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 13] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 14] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 15] FIG. 13 is an exploded perspective view of the acoustic device shown in FIG. 12 according to another embodiment of the present specification. [Figure 16] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 17] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 18] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 19] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 20] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 21] 21 is a diagram showing a method of connecting the acoustic device shown in FIG. 20 to a connecting portion according to another embodiment of the present specification. [Figure 22] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 23] 23 is a diagram showing a method of connecting the acoustic device shown in FIG. 22 to a connecting portion according to another embodiment of the present specification. [Figure 24] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 25]FIG. 25 is an exploded perspective view of the acoustic device shown in FIG. 24 according to another embodiment of the present specification. [Figure 26] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 27] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 28] 13 is an internal view of an acoustic device according to another embodiment of the present specification. [Figure 29] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 30] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 31] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 32] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 33] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 34] 13A-13C show couplings according to other embodiments of the present disclosure. [Diagram 35] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Diagram 36] 36 is a diagram showing a method of connecting the acoustic device shown in FIG. 35 to a connecting portion according to another embodiment of the present specification. [Figure 37] FIG. 13 shows an acoustic device according to another embodiment of the present specification. [Figure 38] 38 is a diagram showing a method of connecting the acoustic device shown in FIG. 37 to a connecting portion according to another embodiment of the present specification. [Figure 39] FIG. 1 illustrates a vibration device according to one embodiment of the present specification. [Diagram 40] 1 illustrates a vibration device according to another embodiment of the present specification. [Diagram 41] 1 illustrates a transportation device according to one embodiment of the present disclosure. [Diagram 42] 1 illustrates a transportation device according to one embodiment of the present disclosure. [Diagram 43] FIG. 43 shows a sound generating device disposed on the roof of the transportation device of FIGS. 41 and 42. [Diagram 44] FIG. 43 shows sound generating devices disposed on the roof and seats of the vehicle of FIGS. 41 and 42. [Diagram 45] FIG. 2 is a diagram showing the acoustic output characteristics of devices according to the examples and experimental examples of the present specification.

[0024] Throughout the drawings and detailed description, unless otherwise stated, like reference numerals should be understood to refer to like components, features and structures. Sizes, lengths, thicknesses and descriptions of layers, regions and elements may be exaggerated for clarity, explanation and convenience. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Reference will now be made in detail to the embodiments of the present specification, examples of which may be illustrated in the accompanying drawings. In the following description, if a detailed description of a well-known function or configuration would unnecessarily obscure the gist of the present specification, the detailed description may be omitted for the sake of brevity. The progression of steps and / or operations described is exemplary, but the order of steps and / or operations is not limited to that described herein and may be modified, except that steps and / or operations necessarily occur in a particular order.

[0026] Unless otherwise specified, the same reference numerals may generally refer to similar components even if they are illustrated in different drawings. In one or more embodiments, the same components (or components having the same name) in different drawings may have the same or substantially the same functions and characteristics, unless otherwise specified. The names of the respective components used in the following description are selected for convenience and may differ from the actual products.

[0027] The advantages and features of the present specification, and the method of achieving them, will become clear by referring to the following detailed description of the embodiment together with the accompanying drawings. However, the present specification is not limited to the embodiment disclosed below, and may be realized in various different forms, and the embodiment is merely provided to complete the disclosure of the specification and to fully inform those skilled in the art of the invention to which the specification pertains.

[0028] In order to explain the embodiments of the present specification, the shapes, sizes, areas, ratios, angles, numbers, etc. shown in the drawings are merely illustrative and are not intended to limit the present specification to the matters shown in the drawings. The reference numbers for components in each drawing may refer to similar components, although the same components may be shown in other drawings, unless otherwise specified.

[0029] When "comprising," "having," "consisting," "comprising," "formed," and the like are used herein, other parts can be added unless "only" or "only" is used. The terms used herein are used merely to describe certain embodiments and are not intended to limit the scope of the present disclosure. The terms used herein are used merely to describe exemplary embodiments and are not intended to limit the scope of the present disclosure.

[0030] Terms expressing elements in the singular include the plural unless expressly stated otherwise. An "embodiment" may be an illustrative example. Any implementation described in this specification as an "embodiment" or "example" should not necessarily be construed as preferred or advantageous over other implementations.

[0031] In one or more embodiments, components, features, or corresponding information (e.g., levels, ranges, dimensions, sizes, etc.) may be interpreted as including an error or tolerance range even if an explicit description of these error or tolerance ranges is not provided. The error or tolerance range may be caused by various factors (e.g., process factors, internal or external impacts, noise, etc.).

[0032] If the description is about a location relationship, when the description is about a location relationship between two parts using words such as "on or over," "on top," "under or below," "at the bottom," "near," "adjacent to," "beside," or "next to," one or more other parts may be located between the two parts, unless "just," "immediately," "close(ly)," or "direct(ly)" is used. For example, when structures are described as being located "above or over," "on top," "under or below," "on bottom," "near," "adjacent to," "beside," or "next to," this description must be interpreted to include cases where the structures touch each other and have a third structure disposed between them. For example, when structures are described as being located "above or over," "on top," "under or below," "on bottom," "near," "adjacent to," "beside," or "next to," this description must be interpreted to include cases where the structures touch each other and have a third structure disposed between them. Additionally, terms such as "front", "back", "back", "left", "right", "top", "bottom", "downward", "upward", "top", "bottom", "column", "row", "vertical", "horizontal", etc. refer to any frame of reference.

[0033] When describing a temporal relationship, for example when a temporal sequence is described using "after," "subsequent," "next," "before or preceding or prior to," etc., consecutive or non-consecutive cases may be included since "just," "immediately," or "directly" are not used.

[0034] Although the terms "first", "second", etc. are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Thus, the first component referred to below may be the second component within the technical spirit of the present invention. Furthermore, the first element, the second element, etc. may be arbitrarily named according to the convenience of a person skilled in the art without departing from the scope of this specification. Terms such as "first", "second", etc. may be used to distinguish components from each other, but the function or structure of the component is not limited by the ordinal number before the component or the name of the component.

[0035] In describing components of this specification, terms such as first, second, A, B, (a), (b), etc. may be used. Such terms are used to distinguish the components from other components, and are not used to define the nature, basis, order, or number of the components.

[0036] When a component or layer is described as being "connected," "bonded," or "coupled" to another component, it should be understood that the component may be directly connected or coupled to the other component, but that other components or layers may also be "disposed" or "interposed" between each component that may be indirectly connected or coupled unless specifically and explicitly stated.

[0037] When a component or layer is described as being "in contact with" or "overlapping" another component or layer, the component may be in direct contact with or overlaid on the other component or layer, but it should be understood that one or more other components or layers may be "disposed" or "interposed" between each component or layer that may be in indirect contact or overlaid unless otherwise expressly described. For example, for purposes of this specification, terms such as "overlap" and "overlapping" should be understood as "overlapping, electrically and / or physically connected" by, for example, surface-to-surface connection, and "overlapping, electrically and / or physically connected" by, for example, surface-to-surface connection.

[0038] The term "at least one" should be understood to include all possible combinations of one or more of the associated items. For example, the meaning of "at least one of the first, second, and third items" may include only any combination of the first, second, and third items, and not just combinations of items presented from two or more of the first, second, or third items.

[0039] The phrase "first component", "second component" and / or "third component" should be understood as one of the first, second and third components or any or all combinations of the first, second and third components. For example, A, B and / or C can be considered as A only, B only, C only, any or some combination of A, B and C, or all of A, B and C. Furthermore, the phrase "component A / component B" should be understood as component A and / or component B.

[0040] In one or more embodiments, the terms "between" and "in" may be used interchangeably for convenience only, unless otherwise noted. For example, the phrase "between multiple components" may also be understood as "among multiple components." In other embodiments, the phrase "among multiple components" may also be understood as "between multiple components." In one or more embodiments, the number of components may be two. In one or more embodiments, the number of components may be more than two.

[0041] In one or more embodiments, the term "different from" may be understood to mean that any element is different from the other element.

[0042] In one or more embodiments, the terms "one or more of" and "one or more of" may be used interchangeably for convenience only, unless otherwise specified. For example, the term "one or more of" can also be understood as "one or more of." For example, the term "one or more of" can also be understood as "one or more of."

[0043] The features of the various embodiments herein may be combined or combined with one another in part or in whole, and may be technically interlocked and driven in various ways, and each embodiment may be implemented independently of the other, or may be implemented together in a related relationship. In one or more embodiments, the components of each device according to the various embodiments herein may be operably coupled or configured.

[0044] The "X-axis direction," "Y-axis direction," and "Z-axis direction" should not be construed as geometric relationships that are solely perpendicular to each other, but may have a broader directionality within the range in which the elements of this specification can function.

[0045] The terms used in this specification (including technical and scientific terms) may have the same meaning as that understood by a person having ordinary knowledge in the technical field to which this specification belongs. Furthermore, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and should not be interpreted as idealized or overly formal unless otherwise specified.

[0046] Hereinafter, the embodiments of the present specification will be described in detail with reference to the accompanying drawings. Furthermore, for convenience of explanation, the scales, dimensions, sizes and thicknesses of the components shown in the drawings may have different scales, dimensions, sizes and thicknesses from the actual scales, dimensions, sizes and thicknesses, and therefore are not limited to the scales, dimensions, sizes and thicknesses shown in the drawings.

[0047] Fig. 1 is a diagram showing an acoustic device according to an embodiment of the present specification. Fig. 1 is a diagram showing an acoustic device for a vehicle according to an embodiment of the present specification. All components of the acoustic device according to all embodiments of the present specification can be operably coupled and configured.

[0048] Referring to FIG. 1, an audio device 30 according to one embodiment of the present specification may be disposed or mounted inside a vehicle 10 (or a transportation device) so as to output sound (S) toward an interior space (IS) of the vehicle.

[0049] Vehicle 10 may be a vehicle that includes one or more seats and one or more glass windows. For example, vehicle 10 may include an automobile, a train, a boat, or an aircraft, and examples of the present disclosure are not limited thereto.

[0050] According to one embodiment of the present disclosure, the vehicle 10 may include a main structure 110 .

[0051] The main structure 110 of the vehicle 10 may include a main frame, a subframe, a side frame, a door frame, an underframe, a seat frame, etc., but the embodiments of the present specification are not limited thereto. For example, the main structure 110 may be a car body, a vehicle structure, or a frame structure, but the embodiments of the present specification are not limited thereto.

[0052] The vehicle 10 according to an embodiment of the present specification may further include an exterior material 120.

[0053] The exterior material 120 of the vehicle 10 may be configured to cover the main structure 110. For example, the exterior material 120 may be configured to cover the exterior of the main structure 110. In the following description, the exterior material 120 may be a vehicle exterior material 120, and these may be used in combination.

[0054] The exterior materials 120 of the vehicle 10 may include hood panels, front fender panels, dash panels, pillar panels, trunk panels, roof panels (or ceilings), floor panels, door inner panels, and door outer panels, and examples herein are not limited thereto.

[0055] The exterior material 120 according to an embodiment of the present specification may include at least one of a flat portion and a curved portion (or a bent portion). For example, the exterior material 120 may have a structure corresponding to the structure of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0056] The vehicle 10 according to the embodiment of the present specification may further include a vehicle interior material 130. In the following description, the vehicle interior material 130 may be an interior material 130, and these may be used in combination.

[0057] The vehicle interior material 130 may include all parts that constitute the interior of the vehicle 10 or may include all parts that are disposed in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be an interior material or an interior finish material of the vehicle 10, but examples of the present specification are not limited thereto.

[0058] The vehicle interior material 130 according to one embodiment of the present specification may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be configured to be exposed to the interior space (IS) of the vehicle 10 while covering one or more of the main structure 110 and the exterior material 120 in the interior space (IS) of the vehicle 10.

[0059] The vehicle interior material 130 according to the embodiments of the present specification may be configured to be exposed to the interior and / or interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be configured to cover at least one surface (or interior surface) of the main frame (or vehicle body), side frame (or side body), door frame (or door body), handle frame (or steering hub), and seat frame exposed to the interior space (IS) of the vehicle 10.

[0060] Vehicle interior materials 130 according to one embodiment of the present specification may include a dashboard, pillar interior materials (or pillar trim), floor interior materials (or floor carpet), roof interior materials (or headliner), door interior materials (or door trim), steering wheel interior materials (or steering cover), seat interior materials, rear package interior materials (or rear seat shelves), overhead console (or interior lighting interior materials), rearview mirrors, glove boxes, and sun visors, and the like, although the embodiments of the present specification are not limited thereto.

[0061] The vehicle interior material 130 according to an embodiment of the present specification may include any one or more of metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, leather, and carbon, and the embodiment of the present specification is not limited thereto. The vehicle interior material 130 made of a plastic material may be an injection product realized by an injection process using a thermoplastic resin or a thermosetting resin, and the embodiment of the present specification is not limited thereto. The vehicle interior material 130 made of 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, and the embodiment of the present specification is not limited thereto. The vehicle interior material 130 made of a fiber material may include a woven sheet, a knitted sheet, a nonwoven fabric, or the like, and the embodiment of the present specification 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 a foamed plastic, and the embodiment of the present specification is not limited thereto. The vehicle interior material 130 made of leather may include natural leather or artificial leather, and the embodiment of the present specification is not limited thereto.

[0062] The vehicle interior material 130 according to an embodiment of the present specification may include at least one of a flat portion and a curved portion (or a bent 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.

[0063] According to an embodiment of the present specification, the acoustic device 30 may be disposed in the vehicle interior material 130. The acoustic device 30 may vibrate the vehicle interior material 130 to generate sound (S) by the vibration of the vehicle interior material 130. For example, the acoustic device 30 may directly vibrate the vehicle interior material 130 to generate sound (S) by the vibration of the vehicle interior material 130. For example, the acoustic device 30 may be configured to vibrate the vehicle interior material 130 to output sound (S) toward the interior and / or interior space (IS) of the vehicle 10. This allows the vehicle interior material 130 to be used as an acoustic diaphragm. The vehicle interior material 130 may be a diaphragm, an acoustic diaphragm, or an acoustic generating plate for outputting sound (S). For example, the vehicle interior material 130 may have a larger size than the acoustic device 30, and the embodiment of the present specification is not limited thereto.

[0064] According to one embodiment of the present disclosure, the acoustic device 30 may be positioned in at least one of the dashboard, pillar interior material, floor interior material, roof interior material, door interior material, steering wheel interior material, and seat interior material, or may be positioned in or coupled to at least one of the rear package interior material, overhead console, rearview mirror, glove box, and sun visor.

[0065] The vehicle 10 or the audio device 30 according to an embodiment of the present specification may include one or more audio devices. The audio device 30 may vibrate the corresponding vehicle interior material 130 through at least one of the one or more audio devices 30 arranged in the vehicle interior material 130, thereby outputting realistic sound (S) including multi-channels and / or stereo sound to the interior space (IS) of the vehicle 10.

[0066] According to an embodiment of the present specification, the acoustic device 30 may be configured in a region between the vehicle interior material 130 and the main structure 110 or a region between the vehicle interior material 130 and the exterior material 120. The acoustic device 30 is disposed in the region between the vehicle interior material 130 and the main structure 110 or the region between the vehicle interior material 130 and the exterior material 120, and can output sound by indirectly or directly vibrating one or more of the region between the vehicle interior material 130 and the main structure 110 or the region between the vehicle interior material 130 and the exterior material 120.

[0067] According to an embodiment of the present specification, the acoustic device 30 may be disposed in one or more of the region between the main structure 110 and the exterior material 120, the region between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130. For example, the acoustic device 30 may be disposed in one or more of the region between the main structure 110 and the exterior material 120, the region between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and configured to output sound. For example, the acoustic device 30 may be disposed in one or more of the region between the main structure 110 and the exterior material 120, the region between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and may output sound by indirectly or directly vibrating one or more of the region between the main structure 110 and the exterior material 120, the region between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130. For example, the acoustic device 30 is disposed between the exterior material 120 and the vehicle interior material 130, and can output sound by indirectly or directly vibrating one or more of the exterior material 120 and the vehicle interior material 130. For example, the acoustic device 30 can be disposed in at least one of the exterior material 120, the vehicle interior material 130, and between the exterior material 120 and the vehicle interior material 130. According to an embodiment of the present specification, the acoustic device 30 can output sound by the acoustic device 30 in at least one of the exterior material 120, the vehicle interior material 130, and between the exterior material 120 and the vehicle interior material 130.

[0068] An acoustic device 30 according to an embodiment of the present specification can output sound between an exterior material 120 and a vehicle interior material 130 of a vehicle 10. For example, the acoustic device 30 can be connected or coupled to one or more of the exterior material 120 and the vehicle interior material 130 between the exterior material 120 and the vehicle interior material 130, and can output sound by indirectly or directly vibrating one or more of the exterior material 120 and the vehicle interior material 130.

[0069] One or more of the exterior material 120 and the vehicle interior material 130 of the vehicle 10 may be a vibration plate, an acoustic diaphragm, or an acoustic generation plate for sound output. For example, each of the exterior material 120 and the vehicle interior material 130 for sound output has a size larger than that of the acoustic device 30, and therefore serves as a large-area vibration plate, an acoustic diaphragm, or an acoustic generation plate, thereby improving the acoustic characteristics and / or sound pressure characteristics of a sound range including a low-frequency range generated by the acoustic device 30. For example, the frequency of the sound in the low-frequency range may be 300 Hz or less, 400 Hz or less, or 500 Hz or less, but the embodiments of the present specification are not limited thereto.

[0070] Fig. 2 is a diagram showing an audio device for a vehicle according to another embodiment of the present specification. Fig. 2 shows an audio device in which the vehicle interior materials in the audio device are changed with reference to Fig. 1. Therefore, in the following description, redundant descriptions of the remaining components except for the vehicle interior materials will be omitted or simplified.

[0071] Referring to FIG. 2, an acoustic device 30 according to another embodiment of the present specification can output sound (S) by vibrating a vehicle interior material 130 including one or more of metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather.

[0072] The vehicle interior material 130 according to another embodiment of the present specification may include a base member 131 and a skin member 133. For example, the base member 131 may be an injection part, a first interior material, an inner interior material, or a rear interior material, but the embodiment of the present specification is not limited thereto. The skin member 133 may be a second interior material, an outer interior material, a front interior material, an outer skin member, a reinforcing member, or a decorative member, but the embodiment of the present specification is not limited thereto.

[0073] The base member 131 may be made of a plastic material. The base member 131 according to an embodiment of the present specification may include an injection product. For example, the base member 131 may be an injection product realized by an injection process using a thermoplastic resin or a thermosetting resin, but the embodiment of the present specification is not limited thereto. The vehicle interior material 130 or the base member 131 may be configured to cover the interior of the vehicle 10. For example, the vehicle interior material 130 or the base member 131 may be configured to cover one or more of the main structure 110 and the exterior 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 at least one surface (or interior surface) of the main frame, the side frame, the door frame, and the handle frame exposed to the interior space (IS) of the vehicle 10.

[0074] The base member 131 may include at least one of a flat portion and a curved portion. For example, the base member 131 may have a structure corresponding to the structure (or back structure) of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0075] The skin member 133 may be disposed on the base member 131. For example, the skin member 133 may be configured to cover the base member 131. For example, the skin member 133 may be configured to be exposed to the interior and / or interior space (IS) of the vehicle 10 while covering the base member 131 in the interior and / or interior space (IS) of the vehicle 10. For example, the skin member 133 may be disposed on or coupled to a front surface (or interior surface) of the base member 131 that is exposed to the interior space (IS) of the vehicle 10.

[0076] The vehicle interior material 130 or the skin member 133 according to an embodiment of the present specification may include any one or more of plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, carbon, and metal, and the embodiment of the present specification is not limited thereto. The skin member 133 may be a fiber material. For example, the skin member 133 made of a fiber material may include at least one or more of synthetic fiber, carbon fiber (or aramid fiber), and natural fiber, and the embodiment of the present specification is not limited thereto. For example, the skin member 133 made of a fiber material may be a woven sheet, a knitted sheet, or a nonwoven fabric, and the embodiment of the present specification is not limited thereto. For example, the skin member 133 made of a fiber material may be a fabric member, and the embodiment of the present specification is not limited thereto.

[0077] The synthetic fiber may include polyolefin fiber, which is an environmentally friendly material that does not emit harmful substances as a thermoplastic resin. For example, the polyolefin fiber may include polyethylene fiber, polypropylene fiber, or polyethylene terephthalate fiber, but the examples of the present specification are not limited thereto. The polyolefin fiber may be a single resin fiber or a core-shell structure fiber, but the examples of the present specification are not limited thereto. The natural fiber may be any one or a mixture of two or more of jute fiber, kenaf fiber, abaca fiber, coconut fiber, and wood fiber, but the examples of the present specification are not limited thereto.

[0078] The acoustic device 30 may be covered by a vehicle interior material 130. For example, the acoustic device 30 may be configured to vibrate the vehicle interior material 130, which includes a base member 131 and a skin member 133, to output sound (S) toward the interior and / or cabin space (IS) of the vehicle 10.

[0079] An acoustic device 30 according to another embodiment of the present specification can use the vehicle interior material 130 as a diaphragm to output sound (S) toward the interior space (IS), and can output multi-channel realistic sound (S) and / or stereo sound toward the interior space (IS) of the vehicle 10.

[0080] According to another embodiment of the present specification, the acoustic device 30 may be configured to be surrounded by an enclosure. A space is provided between the acoustic device 30 and the enclosure, and sound (or sound pressure) can be output in response to vibration of the vehicle interior material 130 caused by air between the acoustic device 30 and the enclosure. However, there is a problem that low-frequency sound is not output, and the number of peaks and dips generated in the reproduction frequency band of the sound (or sound pressure) generated in response to the vibration of the vehicle interior material 130 increases, and the maximum sound pressure and the minimum sound pressure generated in the reproduction frequency band of the sound (or sound pressure) generated in response to the vibration of the vehicle interior material 130 increase, resulting in a decrease in the flatness of the sound pressure. A peak is a phenomenon in which sound pressure jumps at a specific frequency, and a dip is a phenomenon in which sound generation at a specific frequency is suppressed and low sound pressure is generated. The flatness of the sound pressure may be the difference between the maximum sound pressure and the minimum sound pressure.

[0081] The inventors of the present specification have conducted various research and experiments to realize an acoustic device and a transportation device including the same, which can improve the acoustic characteristics of the low frequency band and improve the flatness of the sound pressure. Through various research and experiments, the inventors have invented an acoustic device and a transportation device including the same, which can output sounds including the high frequency band to the low frequency band and can improve the balance characteristic of the sound pressure or the flatness characteristic of the sound pressure. This will be described below.

[0082] Fig. 3 is a diagram showing an audio device according to an embodiment of the present specification, and Fig. 4 is an exploded perspective view of Fig. 3 according to an embodiment of the present specification.

[0083] 3 and 4, an acoustic device 30 according to an embodiment of the present specification may include an enclosure 310 and an acoustic generation module 330. The acoustic device 30 may be configured to vibrate a vibration target or a vehicle structure. For example, the acoustic device 30 may be an acoustic generation device, an acoustic output device, a speaker device, a car audio device, or an audio device, but the embodiment of the present specification is not limited thereto.

[0084] The acoustic device 30 may be configured to be connected (or coupled) to a vehicle structure. For example, the acoustic device 30 may be configured to vibrate a portion of any one of the main structure 110, the exterior material 120, and the vehicle interior material 130 shown in FIG. 1 or FIG. 2 to generate (or output) sound.

[0085] The sound generating module 330 can vibrate the vehicle interior material 130. As a result, the sound generating module 330 can generate sound by vibrating the vehicle interior material 130. For example, the sound generating module 330 can be configured to indirectly vibrate the vehicle interior material 130. The sound generating module 330 can generate or output sound or vibration by driving (or vibrating or displacing) the vehicle interior material 130. For example, the sound generating module 330 can be configured to vibrate the enclosure 310 to vibrate the vehicle interior material 130. For example, the sound generating module 330 can be a sound generating unit, a sound generating member, a sound reproducing module, a sound reproducing unit, a car audio module, a car audio unit, a speaker module, or a speaker unit, but the examples herein are not limited thereto.

[0086] The sound generating module 330 according to one embodiment of the present disclosure may include a vibrating member 331 and vibration devices 333,335.

[0087] The vibration member 331 can generate vibrations or output sounds (or sound waves) by displacement (or drive) of the vibration devices 333, 335. For example, the vibration member 331 can be a plate, a vibration plate, a vibration substrate, a vibrating object, a vibration panel, a sound plate, a sound panel, a passive vibration plate, a passive vibration member, a passive vibration panel, an acoustic output plate, or an acoustic vibration plate, but examples of the present specification are not limited thereto.

[0088] The vibrating member 331 may include a single non-metallic or composite non-metallic material. For example, the single non-metallic or composite non-metallic material of the vibrating member 331 may include one or more of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, but the embodiments of the present specification are not limited thereto. For example, the paper may be cone paper for a speaker. For example, the cone paper may be pulp or foam plastic, etc., but the embodiments of the present specification are not limited thereto.

[0089] The vibration member 331 according to an embodiment of the present disclosure may be made of a plastic material or a styrene material, but the embodiment of the present disclosure is not limited thereto.

[0090] The plastic material of the vibration member 331 may be polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, cyclo-olefin copolymer, carbon fiber reinforced plastic (CFRP), or the like, but the embodiments of the present specification are not limited thereto.

[0091] The styrene material of the vibration member 331 may be an ABS material, which may be acrylonitrile, butadiene, and styrene.

[0092] The vibrating member 331 according to an embodiment of the present specification may be made of a porous material. For example, the vibrating member 331 may include a micro cellular plastics material. For example, the vibrating member 331 may be made of a polyethylene terephthalate material or a polycarbonate material. For example, the vibrating member 331 may be made of a micro cellular polyethylene terephthalate (MCPET) material. The vibrating member 331 made of micro cellular PET has low density, excellent elasticity, and high original sound reproduction capability, and therefore can improve the sound quality of the sound.

[0093] According to an embodiment of the present specification, the vibration member 331 may include a rectangular shape, but the embodiments of the present specification are not limited thereto. For example, the vibration member 331 may have a rectangular shape having 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 back surface, a rear surface, or a bottom surface, and the second surface 331s2 may be a front surface or a top surface.

[0094] The vibration devices 333, 335 may be configured to vibrate the vibration member 331. For example, the vibration devices 333, 335 may be disposed on or configured on the vibration member 331. The vibration devices 333, 335 may be configured to vibrate (or displace or drive) by an applied drive signal (or vibration drive signal or voice signal) to cause the vibration member 331 to vibrate (or displace or drive).

[0095] The vibration devices 333, 335 can have a corresponding or identical shape to the vibration member 331, although examples herein are not limited thereto. For example, the vibration devices 333, 335 can have a different shape than the vibration member 331. For example, the vibration devices 333, 335 can include a rectangular shape or a square shape. For example, the vibration devices 333, 335 can include a rectangular shape or a square shape that is smaller than the vibration member 331.

[0096] The vibration devices 333 and 335 according to an embodiment of the present specification may be integrated with the vibration member 331. For example, the vibration devices 333 and 335 may be directly coupled (or bonded) to the vibration member 331. For example, the vibration devices 333 and 335 may be directly coupled (or bonded) to the vibration member 331 without a separate adhesive member or intermediate member (or medium). For example, the vibration devices 333 and 335 and the vibration member 331 may be configured as one body that is coupled to each other or physically coupled without a separate adhesive member or intermediate member (or medium). For example, the vibration member 331 may be a vibration plate integrated with the vibration device, but the embodiment of the present specification is not limited thereto. As a result, when the vibration devices 333 and 335 vibrate (or are displaced or driven), the vibration of the vibration devices 333 and 335 is transmitted to the vibration member 331 without loss, and the sound pressure characteristics of the sound generated by the vibration of the vibration member 331 may be improved. Furthermore, since a separate adhesive member or intermediate member for connecting (or adhering) the vibration devices 333, 335 and the vibration member 331 to each other is omitted, the manufacturing process of the acoustic device can be simplified and the manufacturing cost of the acoustic device can be reduced.

[0097] The vibration devices 333, 335 according to other embodiments of the present specification may be coupled (or attached) to the vibration member 331 by an adhesive member. For example, when the vibration devices 333, 335 are coupled (or attached) to the vibration member 331 via an adhesive member, the sound pressure characteristics of the sound generated by the vibration of the vibration member 331 may be reduced due to a transmission loss of the vibration through the adhesive member and a transmission loss of the vibration through air bubbles generated between the adhesive member and the vibration member 331.

[0098] According to an embodiment of the present specification, a portion of the sound-generating module 330 or a portion of the vibration devices 333, 335 may be configured to be housed in the vibration member 331. A portion of the sound-generating module 330 or a portion of the vibration devices 333, 335 may be directly (or inserted) into a portion of the vibration member 331 without a separate adhesive member or a separate intermediate member (or medium). Thus, a portion of the sound-generating module 330 or a portion of the vibration devices 333, 335 may be integrated with the vibration member 331 without a separate adhesive member or a separate intermediate member (or medium).

[0099] According to an embodiment of the present specification, the vibration member 331 may be configured to accommodate (or insert) a part of the sound generating module 330 or a part of the vibration device 333, 335. For example, the vibration member 331 may include one or more home parts 331a, 331b. For example, a part of the sound generating module 330 or a part of the vibration device 333, 335 may be accommodated (or inserted) in one or more home parts 331a, 331b of the vibration member 331. For example, a part of the sound generating module 330 or a part of the vibration device 333, 335 may be accommodated (or inserted) in one or more home parts 331a, 331b of the vibration member 331 without a separate adhesive member or a separate intermediate member (or medium). In this way, a part of the sound generating module 330 or a part of the vibration device 333, 335 may be integrated with one or more home parts 331a, 331b of the vibration member 331 without a separate adhesive member or a separate intermediate member (or medium).

[0100] According to an embodiment of the present specification, when the vibration member 331 is made of a plastic material, the vibration member 331 may be combined (or welded) with a part of the sound generating module 330 or a part of the vibration devices 333 and 335 in a semi-cured state, and then cured to be integrated or joined with a part of the sound generating module 330 or a part of the vibration devices 333 and 335, but the embodiment of the present specification is not limited thereto. For example, a part of the vibration member 331 made of a plastic material may be melted by heat and welded or joined with a part of the sound generating module 330 or a part of the vibration devices 333 and 335, so that a part of the sound generating module 330 or a part of the vibration devices 333 and 335 and a part of the vibration member 331 may be integrated or joined with each other without a separate adhesive member or a separate intermediate member (or medium). For example, a portion of the vibration member 331 into which a portion of the sound generating module 330 or a portion of the vibration device 333 , 335 is housed (or inserted) may constitute one or more home portions 331 a , 331 b of the vibration member 331 .

[0101] According to an embodiment of the present specification, the sound generation module 330 or the vibration device 333, 335 may include one or more vibration devices or a plurality of vibration devices. For example, the plurality of vibration devices 333, 335 may be arranged on either side of the vibration member 331. For example, the sound generation module 330 may include one or more of the first vibration device 333 and the second vibration device 335. The first vibration device 333 and the second vibration device 335 may be configured on the vibration member 331.

[0102] Each of the vibration devices, the first vibration device 333 and the second vibration device 335, may have the same shape as the vibration member 331 or may have a different shape. According to one embodiment of the present specification, each of the first vibration device 333 and the second vibration device 335 may have a rectangular shape that is smaller than the vibration member 331.

[0103] According to an embodiment of the present specification, the long sides of the first vibrating device 333 and the second vibrating device 335 may be parallel to the long side of the vibrating member 331 and spaced apart from the long side of the vibrating member 331 by a first distance (or a first shortest distance). The short sides of the first vibrating device 333 and the second vibrating device 335 may be parallel to the short side of the vibrating member 331 and spaced apart from the short side of the vibrating member 331 by 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.

[0104] The first vibration device 333 and the second vibration device 335 may be arranged to sandwich the vibration member 331. The first vibration device 333 and the second vibration device 335 may be configured to vibrate (or displace or drive) by an applied drive signal (or vibration drive signal or voice signal) to vibrate (or displace or drive) the vibration member 331. For example, the drive signals (or vibration drive signals or voice signals) applied to the first vibration device 333 and the second vibration device 335 may be the same or different from each other. For example, the drive signals applied to the first vibration device 333 and the second vibration device 335 may have the same or different phases from each other. For example, the first vibration device 333 and the second vibration device 335 may be a bimorph structure arranged to sandwich the vibration member 331. Since the first vibration device 333 and the second vibration device 335 can vibrate the vibration member 331 independently, the influence on the acoustic characteristics due to the material and characteristics of the vibration member 331 may be reduced. This may improve the acoustic characteristics and / or sound pressure characteristics of the acoustic device 30.

[0105] The first vibrating device 333 may be disposed on a first surface 331s1 of the vibrating member 331. The second vibrating device 335 may be disposed on a second surface 331s2 of the vibrating member 331.

[0106] According to an embodiment of the present specification, the first vibration device 333 and the second vibration device 335 may be configured on 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 on 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 coupled or configured on the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be coupled or configured on the second surface 331s2 different from the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be coupled 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 stacked one above the other.

[0107] According to an embodiment of the present specification, a portion of each of the first vibration device 333 and the second vibration device 335 may be housed (or configured) on either the first surface 331s1 or the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be housed (or configured) on either the first surface 331s1 or the second surface 331s2 of the vibration member 331. For example, the first vibration device 333 may be coupled to or housed (or configured) on the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be coupled to or housed (or configured) on the second surface 331s2 different from the first surface 331s1 of the vibration member 331. For example, the second vibration device 335 may be coupled 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 vibrating device 335 and the first vibrating device 333 may be stacked one above the other.

[0108] The first vibrating device 333 may be accommodated (or inserted) in the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331. For example, a portion of the first vibrating device 333 may be accommodated (or inserted) in the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331. For example, a portion of the first vibrating device 333 may be accommodated (or inserted) in the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331 without a separate adhesive member or a separate intermediate member (or medium).

[0109] The second vibrating device 335 may be accommodated (or inserted) in the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331. For example, a portion of the second vibrating device 335 may be accommodated (or inserted) in the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331. For example, a portion of the second vibrating device 335 may be accommodated (or inserted) in the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331 without a separate adhesive member or a separate intermediate member (or medium).

[0110] In the vibrating member 331, the first home portion 331a may be formed (or configured) in a concave shape from the first surface 331s1. For example, the first home portion 331a may be formed (or configured) in a concave shape from the first surface 331s1 to have a shape and depth corresponding to a portion of the first vibrating device 333. The second home portion 331b may be formed (or configured) in a concave shape from the second surface 331s2. For example, the second home portion 331b may be formed (or configured) in a concave shape from the second surface 331s2 to have a shape and depth corresponding to a portion of the second vibrating device 335.

[0111] According to an embodiment of the present specification, when the vibrating member 331 is made of a plastic material, the first surface 331s1 of the vibrating member 331 may be combined (or welded) with a part of the first vibrating device 333 in a semi-cured state and then cured to be integrated or joined with a part of the first vibrating device 333, and the second surface 331s2 of the vibrating member 331 may be combined (or welded) with a part of the second vibrating device 335 in a semi-cured state and then cured to be integrated or joined with a part of the second vibrating device 335, but the embodiment of the present specification is not limited thereto. For example, a part of the first surface 331s1 of the vibrating member 331 in which a part of the first vibrating device 333 is accommodated (or inserted) may constitute a first home portion 331a of the vibrating member 331, and a part of the second surface 331s2 of the vibrating member 331 in which a part of the second vibrating device 335 is accommodated (or inserted) may constitute a second home portion 331b of the vibrating member 331.

[0112] The enclosure 310 may be adjacent to the sound generating module 330. For example, the enclosure 310 may include one or more enclosures (or enclosure members). The one or more enclosures may include a first enclosure (or first enclosure member) 311 and a second enclosure (or second enclosure member) 312. For example, the second enclosure 312 may be coupled to the first enclosure 311. For example, the enclosure 310 may be a housing, a case, an outer case, a case member, a housing member, a cabinet, a sealing member, a sealing cap, a sealing box, or a sound box, and examples of the present specification are not limited thereto.

[0113] The enclosure 310 according to an embodiment of the present specification may include one or more of a metal material or a non-metal material (or a composite non-metal material), but the embodiment of the present specification is not limited thereto. For example, the enclosure 310 may include one or more of a metal material, a plastic, a fiber, a carbon, and a wood, but the embodiment of the present specification is not limited thereto. For example, the enclosure 310 may be made of a metal material such as an aluminum material, or a plastic material such as a styrene material, but the embodiment of the present specification is not limited thereto. For example, the styrene material may be an ABS material. The ABS material may be acrylonitrile, butadiene, and styrene. For example, the enclosure 310 may be made of the same material as the vibration member 331, or may be made of a different material.

[0114] The enclosure 310 may be configured to be coupled to a vibration object or vehicle interior material 130 (see FIG. 1 or FIG. 2). The enclosure 310 may be configured to support or house the sound-generating module 330. The enclosure 310 may be configured to vibrate by the actuation (or vibration or displacement) of the sound-generating module 330. For example, the enclosure 310 may be configured to vibrate the vehicle interior material 130 by the actuation (or vibration or displacement) of the sound-generating module 330.

[0115] The enclosure 310 may include an interior space 313. The enclosure 310 may be located at the back of the sound-generating module 330 across the interior space 313. For example, the enclosure 310 may be connected to the sound-generating module 330 across the interior space 313. The enclosure 310 may be configured to cover the sound-generating module 330 across the interior space 313. For example, the enclosure 310 may be configured to cover a first surface (or back surface or bottom surface) and a second surface (or front surface or top surface) of the sound-generating module 330 opposite the first surface. The enclosure 310 may be configured to support the sound-generating module 330 across the interior space 313. For example, the enclosure 310 may be configured to support or cover each of a first side (or back or bottom side) and a second side (or front or top side) of the sound-generating module 330.

[0116] According to an embodiment of the present disclosure, the interior space 313 of the enclosure 310 can be between the sound generating module 330 and the enclosure 310. The interior space 313 can be between the first enclosure 311 and the second enclosure 312. For example, the sound generating module 330 can be configured in the interior space 313 of the enclosure 310. For example, the sound generating module 330 can be configured in the interior space 313 between the first enclosure 311 and the second enclosure 312. The vibration devices 333, 335 of the sound generating module 330 can be in the interior space 313 of the enclosure 310. For example, the first vibration device 333 and the second vibration device 335 can be in the interior space 313 of the enclosure 310. For example, the first vibration device 333 can be between the first enclosure 311 and the vibration member 331. For example, the second vibrating device 335 can be between the second enclosure 312 and the vibrating member 331. For example, the interior space 313 can be a storage space, a storage space, a gap space, an air space, a vibration space, an acoustic space, an acoustic pipe, or a sealed space, and the embodiments herein are not limited thereto.

[0117] The first enclosure 311 can be in the sound-generating module 330 across the internal space 313. The first enclosure 311 can be connected to the sound-generating module 330 across the internal space 313. The first enclosure 311 can be disposed or connected to a first surface side (or a back surface side or a bottom surface side) of the sound-generating module 330 across the internal space 313. For example, the first enclosure 311 can be connected (or coupled) to an edge portion of the first surface of the sound-generating module 330 across the internal space 313. The first enclosure 311 can support the first surface of the sound-generating module 330 across the internal space 313. The first enclosure 311 can be disposed (or configured) between the vehicle interior material 130 and the sound-generating module 330. For example, the first enclosure 311 can be configured to surround the first surface of the sound-generating module 330. The first enclosure 311 may be configured to cover a first side of the sound-generating module 330 .

[0118] The first enclosure 311 may be vibrated by the driving (or vibration or displacement) of the sound generating module 330, and the vehicle interior material 130 may generate or output sound by the vibration of the first enclosure 311. As a result, according to one embodiment of the present specification, sound is generated by the vibration of a vibrating object or the vehicle interior material 130 having a size larger than that of the acoustic device 30, and thus the acoustic characteristics and / or sound pressure characteristics of a sound range including a low frequency range generated by the driving (or vibration or displacement) of the acoustic device 30 may be improved.

[0119] The second enclosure 312 can be in the sound-generating module 330 across the interior space 313. The second enclosure 312 can be coupled to the sound-generating module 330 across the interior space 313. The second enclosure 312 can be disposed or coupled to a second surface side (or a front surface side or a top surface side) of the sound-generating module 330 opposite to the first surface side across the interior space 313. For example, the second enclosure 312 can be coupled (or joined) to an edge portion of the second surface of the sound-generating module 330 across the interior space 313. The second enclosure 312 can support the second surface of the sound-generating module 330 across the interior space 313. The second enclosure 312 can be configured to surround the second surface of the sound-generating module 330. The second enclosure 312 can be configured to cover the second surface of the sound-generating module 330.

[0120] According to one embodiment of the present disclosure, the second enclosure 312 may be configured to have an inverse shape to the first enclosure 311. For example, the first enclosure 311 and the second enclosure 312 may be configured to have symmetrical shapes or structures across the sound generating module 330.

[0121] Each of the first vibrating device 333 and the second vibrating device 335 vibrates the vibrating member 331 to generate sound (or sound pressure or sound waves) in the internal space 313 of the enclosure 310, the enclosure 310 vibrates due to the sound (or sound pressure or sound waves) in the internal space 313 of the enclosure 310, and the vehicle interior material 130 can generate (or output) sound by vibrating due to the vibration of the enclosure 310. For example, the vehicle interior material 130 can vibrate due to the vibration of the first enclosure 311 caused by the sound (or sound pressure or sound waves) generated in the internal space 313 of the enclosure 310 to generate (or output) sound.

[0122] According to one embodiment of the present disclosure, the interior space 313 of the enclosure 310 may include a first space 313a and a second space 313b.

[0123] The vibration member 331 may be disposed in the interior space 313 of the enclosure 310. The vibration member 331 may be disposed in the interior space 313 of the enclosure 310 and coupled to a vibration device. For example, the vibration member 331 may be disposed in the interior space 313 of the enclosure 310 and coupled 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 disposed on either side of the vibration member 331.

[0124] The vibration member 331 may be disposed or configured between the first enclosure 311 and the second enclosure 312 of the enclosure 310. The vibration member 331 may be configured to separate the internal space 313 of the enclosure 310 into a first space 313a and a second space 313b. For example, the internal space 313 of the enclosure 310 may be separated 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 provided between the first enclosure 311 of the enclosure 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 provided between the second enclosure 312 of the enclosure 310 and the vibration member 331 and may be covered by the vibration member 331.

[0125] According to an embodiment of the present specification, the first vibration device 333 and the second vibration device 335 may be located in different spaces in the interior space 313 of the enclosure 310. For example, the first vibration device 333 may be located in the first space 313a. For example, the second vibration device 335 may be located in the second space 313b.

[0126] The first space 313a can be between the sound generating module 330 and the first enclosure 311. For example, the first space 313a can be between a first surface of the sound generating module 330 and the first enclosure 311. The first space 313a can be between the first vibration device 333 and the first enclosure 311. The second space 313b can be between the sound generating module 330 and the second enclosure 312. For example, the second space 313b can be between a second surface different (or opposite) from the first surface of the sound generating module 330 and the second enclosure 312. The second space 313b can be between the second vibration device 335 and the second enclosure 312. For example, the internal space 313 can be a gap space, an air gap, a vibration space, an acoustic space, an acoustic pipe, or a sealed space, and the embodiments herein are not limited thereto.

[0127] The sound generating module 330 can generate sound pressure (or sound or sound waves) in the internal space 313 of the enclosure 310 to vibrate the enclosure 310, and the vibration of the enclosure 310 can vibrate the vibration object or the vehicle interior material 130. For example, the sound generating module 330 can be configured to vibrate the first enclosure 311 of the enclosure 310 to vibrate the vibration object or the vehicle interior material 130. For example, the sound generating module 330 can generate sound pressure (or sound or sound waves) in the internal space 313 of the enclosure 310 to vibrate the first enclosure 311, and the vibration of the first enclosure 311 can vibrate the vibration object or the vehicle interior material 130.

[0128] According to one embodiment of the present disclosure, the first enclosure 311 may include an opening 310o.

[0129] The opening 310o may be configured to penetrate (or vertically penetrate) the first enclosure 311 along the thickness direction (Z) (or vertical direction) of the enclosure 310. The opening 310o may be connected (or communicated) with the internal space 313. The opening 310o may be connected with the first space 313a. For example, the opening 310o may be configured to reduce the air pressure in the internal space 313 of the enclosure 310. For example, the opening 310o may be configured to reduce the air pressure in the first space 313a of the first enclosure 311, or the first space 313a provided between the vibrating member 331 and the first enclosure 311. This allows the range of the bass band to be expanded, thereby improving the acoustic characteristics of the bass band. For example, as the pressure (or air pressure) in the first space 313a decreases through the opening 310o, the displacement (or bending force) of the first vibrating device 333 disposed between the vibrating member 331 and the first enclosure 311 may be increased, thereby expanding the range of the low-frequency band and improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency band. Therefore, the sound (or sound pressure) in the low-frequency band generated by the vibration of the first vibrating device 333 and / or the second vibrating device 335 may be improved.

[0130] According to an embodiment of the present specification, the opening 310o may be arranged to correspond to a central portion of the sound generating module 330. For example, the opening 310o may be arranged to correspond to a central portion of the vibration devices 333, 335. For example, the opening 310o may be arranged to correspond to a central portion of the first vibration device 333 and the second vibration device 335. For example, the opening 310o may be arranged to correspond to a central portion of each of the first vibration device 333 and the second vibration device 335. For example, the internal space 313 of the enclosure 310 may include a space coupled to the opening 310o. For example, the internal space 313 of the enclosure 310 may include a first space 313a coupled to the opening 310o.

[0131] According to an embodiment of the present specification, the opening 310o may be smaller than the size of the first vibrating device 333. For example, the opening 310o may be smaller than the size of the first vibrating device 333 disposed on the vibrating member 331. For example, the opening 310o may include a line shape having a size (or length) smaller than the size of the first vibrating device 333 disposed on the vibrating member 331. For example, the opening 310o may be a hole, a slot, or a slit, and the embodiment of the present specification is not limited thereto. For example, the opening 310o may be an acoustic emission portion, an acoustic emission port, an acoustic output portion, an acoustic output port, an acoustic output hole, a duct hole, or a vent hole, and the embodiment of the present specification is not limited thereto.

[0132] The opening 310o may be a space through which sound waves generated by the vibration of the sound generating module 330 are propagated (or transmitted) to the interior space of the vehicle. For example, the vibration of the sound generating module 330 may be transmitted to a vibration target or the interior space of the vehicle through the opening 310o. For example, the sound waves (or sound) caused by the vibration of the sound generating module 330 may be transmitted (or output or emitted) to the interior space of the vehicle through the opening 310o. This makes it possible to increase the vibration amplitude (or displacement amplitude) of the vibrating member 331 accompanying the vibration of the sound generating module 330, thereby improving the acoustic characteristics and / or sound pressure characteristics generated accompanying the vibration of the vibrating member 331.

[0133] The first enclosure 311 may be disposed closer to the vehicle interior material 130 than the second enclosure 312. For example, the first enclosure 311 including the opening 310o may be disposed closer to the vehicle interior material 130 than the second enclosure 312. This allows sound generated by vibration of one or more of the first vibrating device 333 and the second vibrating device 335 to be output to the interior space of the vehicle, so that sound including a low-frequency band can be output to the interior space of the vehicle.

[0134] The first enclosure 311 may include an inclined surface 311s and an inner side surface 311i. The first inclined surface 311s may be configured to be inclined between the inner side surface 311i of the first enclosure 311 and the opening 310o. The inclined surface 311s may be configured to guide the sound generated by the vibration of the sound generating module 330 to the interior space of the vehicle. This may allow the sound generated by the vibration of the sound generating module 330 to be output to the interior space of the vehicle, and may further improve the acoustic characteristics and / or sound pressure characteristics of the sound including the low-frequency band. For example, the inclined surface 311s may be a guide surface or an acoustic guide surface, and the embodiments of the present specification are not limited thereto.

[0135] The vibration member 331 may be arranged or configured to be spaced apart from the opening 310o. The vibration member 331 may be configured in the interior space 313 to be spaced apart from the opening 310o. For example, the vibration member 331 may be arranged in the interior space 313 and configured between the first enclosure 311 and the second enclosure 312. For example, the vibration member 331 may be arranged in the interior space 313 and supported by at least one of the first enclosure 311 and the second enclosure 312. For example, the vibration member 331 may be arranged to cover the interior space 313 and supported by at least one of the first enclosure 311 and the second enclosure 312. For example, the vibration member 331 may be arranged to cover the interior space 313 of the enclosure 310. For example, the vibration member 331 may be supported by the first enclosure 311 and the second enclosure 312.

[0136] According to an embodiment of the present specification, the first enclosure 311 of the enclosure 310 may be disposed or configured on the first surface (or back surface) 331s1 of the vibration member 331. The first enclosure 311 of the enclosure 310 may be coupled (or connected) to the first surface 331s1 of the vibration member 331. For example, the first enclosure 311 may be coupled (or connected) to an edge portion of the first surface 331s1 of the vibration member 331. The first enclosure 311 may be configured to support the edge portion of the first surface 331s1 of the vibration member 331. For example, the first enclosure 311 may be configured to cover the first surface of the sound generating module 330. For example, the first enclosure 311 may be configured to surround the first surface of the sound generating module 330.

[0137] According to an embodiment of the present specification, the second enclosure 312 may be disposed or configured on the second surface (or front surface) 331s2 of the vibration member 331. The second enclosure 312 may be configured to support an edge portion of the second surface 331s2 of the vibration member 331. The second enclosure 312 of the enclosure 310 may be coupled (or connected) to the second surface 331s2 of the vibration member 331. For example, the second enclosure 312 may be coupled (or connected) to an edge portion of the second surface 331s2 of the vibration member 331. For example, the second enclosure 312 may be configured to cover the second surface of the sound-generating module 330. For example, the second enclosure 312 may be configured to surround the second surface of the sound-generating module 330.

[0138] The acoustic device 30 according to an embodiment of the present specification may further include a coupling member 320. The coupling member 320 may be configured to connect or couple the vibration member 331 and the enclosure 310 to each other. For example, the coupling member 320 may be between an edge portion of the vibration member 331 and the enclosure 310. The coupling member 320 may include a first coupling member 321 and a second coupling member 322.

[0139] The first coupling member 321 can be between the vibration member 331 and the first enclosure 311. The first coupling member 321 can be between an edge portion of the vibration member 331 and an edge portion of the first enclosure 311. For example, the edge portion of the first enclosure 311 can be coupled or connected to the first surface 331s1 of the vibration member 331 by the first coupling member 321. For example, the edge portion of the first enclosure 311 can be coupled or connected to the edge portion of the first surface 331s1 of the vibration member 331 by the first coupling member 321.

[0140] The second coupling member 322 can be between the vibration member 331 and the second enclosure 312. The second coupling member 322 can be between an edge portion of the vibration member 331 and an edge portion of the second enclosure 312. For example, the edge portion of the second enclosure 312 can be coupled or connected to the second surface 331s2 of the vibration member 331 by the second coupling member 322. For example, the edge portion of the second enclosure 312 can be coupled or connected to the edge portion of the second surface 331s2 of the vibration member 331 by the second coupling member 322.

[0141] According to an embodiment of the present specification, the coupling member 320 may be configured to minimize or prevent vibrations of the vibrating member 331 from being transmitted to the enclosure 310. The coupling member 320 may include material properties suitable for blocking vibrations. 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 specification may be made of a polyurethane material or a polyolefin material, but the embodiment of the present specification is 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 adhesive 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 cushion tape, but the embodiment of the present specification is not limited thereto.

[0142] The coupling member 320 in other embodiments of the present specification may be configured to minimize or prevent the vibration of the vibrating member 331 from being transmitted to the enclosure 310, and to reduce reflection of incident sound waves generated by the vibration of the vibrating member 331.

[0143] The acoustic device 30 according to an embodiment of the present specification includes the sound generating module 330 having a bimorph structure, and therefore the acoustic characteristics and / or sound pressure characteristics of the sound including the low frequency band can be improved. Since the acoustic device 30 according to an embodiment of the present specification includes the enclosure 310 having the opening 310o, the sound range of the low frequency band can be expanded as the air pressure in the internal space 313 of the enclosure 310 decreases, and therefore the acoustic characteristics and / or sound pressure characteristics of the low frequency band can be improved.

[0144] In the acoustic device 30 according to an embodiment of the present specification, the vibrations of the vibrating devices 333 and 335 are transmitted to the vibrating member 331 without loss due to an integrated structure of the vibrating member 331 and the vibrating devices 333 and 335, thereby improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 331. In the acoustic device 30 according to an embodiment of the present specification, a separate adhesive member or intermediate member for bonding (or adhering) the vibrating devices 333 and 335 and the vibrating member 331 to each other is omitted, thereby simplifying the manufacturing process of the acoustic device and reducing the manufacturing cost of the acoustic device.

[0145] FIG. 5 is a cross-sectional view of a vibration device of the sound-generating module shown in FIGS. 3 and 4 according to one embodiment of the present specification.

[0146] 3 to 5, a sound generating module 330 according to an embodiment of the present specification 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.

[0147] The vibration generator 1310 may include a piezoelectric material having piezoelectric properties. The vibration generator 1310 may vibrate (or displace or drive) a vibrating member (or vehicle interior material) by vibrating (or displacing or driving) the piezoelectric material due to a driving signal (or voice signal or acoustic 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 due to the piezoelectric effect (or piezoelectric properties). For example, the vibration generator 1310 may vibrate (or displace or drive) in a vertical direction (or thickness direction) (Z) by alternately repeating contraction and / or expansion due to the inverse piezoelectric effect of the piezoelectric material. For example, the vibration generator 1310 may vibrate or be mechanically displaced (or vibrated or driven) in response to an electrical signal applied from outside to a piezoelectric material including a piezoelectric ceramic.

[0148] The vibration generator 1310 may be made of a ceramic-based piezoelectric material capable of realizing relatively strong vibration, or may be made of a piezoelectric ceramic having a perovskite crystal structure. For example, the vibration generator 1310 may be a vibration generating element, a vibration film, a vibration generating film, a vibrator, an active vibrator, an active vibration generator, an actuator, an exciter, a film actuator, a film exciter, an ultrasonic actuator, or an active vibration member, but the embodiments of the present specification are not limited thereto.

[0149] According to an embodiment of the present disclosure, one or more vibration generators 1310 may include a vibration generating unit 1311 .

[0150] The vibration generating unit 1311 may be configured to vibrate by a piezoelectric effect in response to a drive signal. For example, the vibration generating unit 1311 may include a piezoelectric vibration unit. The vibration generating unit 1311 may include at least one of a piezoelectric inorganic material and a piezoelectric organic material. For example, the vibration generating unit 1311 may be a vibration element, a piezoelectric element, a piezoelectric element unit, a piezoelectric element layer, a piezoelectric structure, a piezoelectric vibration unit, or a piezoelectric vibration layer, but the embodiments of the present specification are not limited thereto.

[0151] The vibration generating unit 1311 according to an embodiment of the present specification may include a vibration unit 1311a, a first electrode unit 1311b, and a second electrode unit 1311c.

[0152] The vibrating part 1311a may include a piezoelectric material or an electroactive material having a piezoelectric effect. For example, a piezoelectric material may have a characteristic in which a potential difference is generated by dielectric polarization due to a change in the relative positions of positive (+) and negative (-) ions when pressure or twisting is applied to a crystal structure due to an external force, and vibration is generated by an electric field due to a reversely applied voltage. For example, the vibrating part 1311a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite, but the embodiments of the present specification are not limited thereto.

[0153] The vibration unit 1311a may be made of a ceramic-based material capable of realizing relatively strong vibration, or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite-based crystal structure may have a piezoelectric and / or inverse piezoelectric effect and may be a plate-shaped structure having orientation. The perovskite-based crystal structure may be expressed by a chemical formula of ABO3, in which the A site may be made of a divalent metal element and the B site may be made of a tetravalent metal element. As an example of the present specification, in the chemical formula of ABO3, the A site and the B site may be cations, and O may be anions. For example, the vibration unit 1311a may include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, and the examples of the present specification are not limited thereto.

[0154] The piezoelectric ceramic may be composed of a single crystal ceramic having a single crystal structure, or may be composed of a ceramic material having a polycrystalline structure or a polycrystalline ceramic. The piezoelectric material of the single crystal ceramic may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7, or ZnO, but the embodiment of the present specification is not limited thereto. The piezoelectric material of the polycrystalline ceramic may include a PZT (lead zirconate titanate)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate)-based material including lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the embodiment of the present specification is not limited thereto. For example, the vibrating part 1311a may include at least one of CaTiO3, BaTiO3, and SrTiO3 that do not include lead (Pb), but the embodiment of the present specification is not limited thereto.

[0155] The first electrode unit 1311b may be disposed on the first surface (or upper surface or front surface) 1311s1 of the vibrating unit 1311a. The first electrode unit 1311b may have the same size as the vibrating unit 1311a or may have a smaller size than the vibrating unit 1311a, but the embodiments of the present specification are not limited thereto. For example, the first electrode unit 1311b may be disposed (or configured) on at least a portion of the first surface 1311s1 of the vibrating unit 1311a. For example, the first electrode unit 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 vibrating unit 1311a, and may be coupled (or in contact) or directly coupled (or in contact) with at least a portion of the first surface 1311s1 of the vibrating unit 1311a.

[0156] The second electrode unit 1311c may be disposed on a second surface (or a lower surface or a rear surface) 1311s2 that is different from or opposite to the first surface 1311s1 of the vibrating unit 1311a. The second electrode unit 1311c may have the same size as the vibrating unit 1311a or may have a smaller size than the vibrating unit 1311a. For example, the second electrode unit 1311c may be disposed (or configured) on at least a portion of the second surface 1311s2 of the vibrating unit 1311a. For example, the second electrode unit 1311c may be configured to have a pattern shape or a line shape that corresponds to at least a portion of the second surface 1311s2 of the vibrating unit 1311a, and may be connected (or in contact) or directly connected (or in contact) with at least a portion of the second surface 1311s2 of the vibrating unit 1311a. For example, the second electrode unit 1311c may have the same shape as the vibrating unit 1311a, but the embodiments of the present specification are not limited thereto.

[0157] According to an embodiment of the present specification, one or more of the first electrode unit 1311b and the second electrode unit 1311c may be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but the embodiment of the present specification 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, or an alloy thereof, but the embodiment of the present specification is not limited thereto. For example, each of the first electrode unit 1311b and the second electrode unit 1311c may include silver (Ag) having a low resistivity in order to improve the electrical characteristics and / or vibration characteristics of the vibration unit 1311a. For example, the carbon can further include one or more of carbon materials including carbon black, ketjen black, carbon nanotubes, and graphite, but examples herein are not limited thereto.

[0158] The vibrating part 1311a may be polarized (or polled) by a constant voltage applied to the first electrode part 1311b and the second electrode part 1311c in a constant temperature atmosphere or a temperature atmosphere that changes from high temperature to room temperature, but the embodiments of the present specification are not limited thereto. For example, the polarization direction (or poling direction) formed in the vibrating part 1311a may be formed or oriented (or arranged) from the first electrode part 1311b to the second electrode part 1311c, but is not limited thereto, and for example, the polarization direction (or poling direction) formed in the vibrating part 1311a may be formed or oriented (or arranged) from the second electrode part 1311c to the first electrode part 1311b.

[0159] The vibration part 1311a can vibrate by alternately repeating contraction and / or expansion due to the inverse piezoelectric effect caused by a drive signal applied from the outside to the first electrode part 1311b and the second electrode part 1311c. For example, the vibration part 1311a can vibrate in the vertical direction (or thickness direction) and the planar direction by a signal applied to the first electrode part 1311b and the second electrode part 1311c. The vibration part 1311a can improve the vibration characteristics including the acoustic characteristics and / or sound pressure characteristics of the vibration generator 1310 by displacing (or vibrating or driving) by contracting and / or expanding in the planar direction.

[0160] According to an embodiment of the present specification, a portion of the vibration generating unit 1311 may be accommodated (or inserted) in the vibrating member 331. For example, a first surface of the vibration generating unit 1311 adjacent to the vibrating member 331 may be accommodated (or inserted) in a portion of the vibrating member 331. For example, one of the first electrode unit 1311b and the second electrode unit 1311c may be accommodated (or inserted) in a portion of the vibrating member 331. For example, the first electrode unit 1311b of the first electrode unit 1311b and the second electrode unit 1311c may be accommodated (or inserted) in a portion of the vibrating member 331. For example, the first electrode unit 1311b may be accommodated (or inserted) in the home portions 331a and 331b of the vibrating member 331. Thus, the first electrode unit 1311b may be integrated with the vibrating member 331 or the home portions 331a and 331b of the vibrating member 331.

[0161] According to an embodiment of the present specification, the first electrode portion 1311b of the first vibrating device 333 may be accommodated (or inserted) in the first home portion 331a of the vibrating member 331. Thus, the first vibrating device 333 may be integrated with the vibrating member 331 or the first surface 331s1 of the vibrating member 331 by the first electrode portion 1311b accommodated (or inserted) in the first home portion 331a of the vibrating member 331. For example, the second electrode portion 1311c of the second vibrating device 335 may be accommodated (or inserted) in the second home portion 331b of the vibrating member 331. Thus, the second vibrating device 335 may be integrated with the second surface 331s2 of the vibrating member 331 or the vibrating member 331 by the first electrode portion 1311b accommodated (or inserted) in the second home portion 331b of the vibrating member 331 or the vibrating member 331. Therefore, the vibration of the first vibrating device 333 and / or the vibration of the second vibrating device 335 can be efficiently transmitted to the vibrating member 331 without loss, thereby improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 331.

[0162] According to one embodiment of the present specification, when the vibration member 331 is made of a plastic material, the first surface 331s1 of the vibration member 331 may be coupled (or welded) to the first electrode portion 1311b of the first vibration device 333 in a semi-cured state and then hardened to be integrated or joined to the first electrode portion 1311b of the first vibration device 333, and the second surface 331s2 of the vibration member 331 may be coupled (or welded) to the second electrode portion 1311c of the second vibration device 335 in a semi-cured state and then hardened to be integrated or joined to the first electrode portion 1311b of the second vibration device 335, but the embodiments of the present specification are not limited thereto. For example, a portion of the first surface 331s1 of the vibrating member 331 in which the first electrode portion 1311b of the first vibrating device 333 is housed (or inserted) can constitute the first home portion 331a of the vibrating member 331, and a portion of the second surface 331s2 of the vibrating member 331 in which the first electrode portion 1311b of the second vibrating device 335 is housed (or inserted) can constitute the second home portion 331b of the vibrating member 331.

[0163] According to an embodiment of the present specification, a portion of the vibration part 1311a in the first vibration device 333 may be in contact with or directly contact with the vibration member 331. For example, an edge of the vibration part 1311a in the first vibration device 333 may be in contact with or directly contact with the first surface 331s1 of the vibration member 331. This allows the vibration of the vibration part 1311a in the first vibration device 333 to be efficiently transmitted to the vibration member 331 without loss. A portion of the vibration part 1311a in the second vibration device 335 may be in contact with or directly contact with the vibration member 331. For example, an edge of the vibration part 1311a in the second vibration device 335 may be in contact with or directly contact with the second surface 331s2 of the vibration member 331. This allows the vibration of the vibration part 1311a in the second vibration device 335 to be efficiently transmitted to the vibration member 331 without loss.

[0164] The vibration generator 1310 (or the sound generating module 330 ) or the vibration device 333 , 335 according to an embodiment of the present disclosure may further include a cover member 1313 .

[0165] The cover member 1313 may be disposed on a second surface of the vibration generating unit 1311 opposite to the first surface of the vibration generating unit 1311. For example, the cover member 1313 may be configured to cover the second electrode unit 1311c of the vibration generating unit 1311. For example, the cover member 1313 may be configured on the second surface of the vibration generating unit 1311 including the second electrode unit 1311c. The cover member 1313 may be configured to protect the second surface of the vibration generating unit 1311 including the second electrode unit 1313c. For example, the cover member 1313 may be configured to have a size even larger than the vibration generating unit 1311.

[0166] The cover member 1313 in the first vibrating device 333 may be a first cover member. For example, the first vibrating device 333 may include a first cover member configured on the second surface of the vibration generating unit 1311 so as to cover the second electrode unit 1313c. For example, the cover member 1313 in the second vibrating device 335 may be a second cover member. For example, the second vibrating device 335 may include a second cover member configured on the second surface of the vibration generating unit 1311 so as to cover the second electrode unit 1311c.

[0167] The material of cover member 1313 (or the first and second cover members) may be polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, cyclo-olefin copolymer, or the like, but examples of the present specification are not limited thereto.

[0168] The cover member 1313 (or the first and second cover members) may be connected or bonded to the second surface or the second electrode portion 1311c of the vibration generating unit 1311 via an adhesive layer 1315. For example, the adhesive layer 1315 may be disposed (or interposed) between the cover member 1313 (or the first and second cover members) and the first surface of the vibration generating unit 1311. For example, the cover member 1313 (or the first and second cover members) may be connected or bonded to the second surface of the vibration generating unit 1311 including the second electrode portion 1311c by a film lamination process using the adhesive layer 1315 as an intermediate.

[0169] An edge portion of the cover member 1313 (or the first cover member) of the first vibrating device 333 may be connected or bonded to the first surface 331s1 of the vibrating member 331 located around the vibration generating unit 1311 via the adhesive layer 1315. This allows the adhesive layer 1315 to surround the vibration generating unit 1311 of the first vibrating device 333. For example, the vibration generating unit 1311 of the first vibrating device 333 may be surrounded or completely surrounded by the first surface 331s1 of the vibrating member 331 and the adhesive layer 1315.

[0170] An edge portion of the cover member 1313 (or the second cover member) of the second vibrating device 335 may be connected or bonded to the second surface 331s2 of the vibrating member 331 around the vibration generating unit 1311 via the adhesive layer 1315. This allows the adhesive layer 1315 to surround the vibration generating unit 1311 of the second vibrating device 335. For example, the vibration generating unit 1311 of the second vibrating device 335 may be surrounded or completely surrounded by the second surface 331s2 of the vibrating member 331 and the adhesive layer 1315.

[0171] The adhesive layer 1315 between the cover member 1313 (or the first cover member) of the first vibrating device 333 and the first surface 331s1 of the vibrating member 331 may be a first adhesive layer. The adhesive layer 1315 between the cover member 1313 (or the second cover member) of the second vibrating device 335 and the second surface 331s2 of the vibrating member 331 may be a second adhesive layer.

[0172] The adhesive layer 1315 (or the first and second adhesive layers) according to the embodiment of the present specification may include an electrically insulating material that has adhesiveness and is compressible and resilient. For example, the adhesive layer 1315 (or the first and second adhesive layers) may include, but is not limited to, an epoxy resin, an acrylic resin, a silicone resin, a urethane resin, a pressure sensitive adhesive (PSA), an optically cleared adhesive (OCA), or an optically cleared resin (OCR).

[0173] The adhesive layer 1315 (or the first and second adhesive layers) according to other embodiments of the present specification may include an insulating adhesive material. For example, the adhesive layer 1315 (or the first and second adhesive layers) may include one or more of a thermosetting adhesive, a photocurable adhesive, and a thermal adhesive. For example, the adhesive layer 1315 (or the first and second adhesive layers) may include a thermal curable adhesive or a thermal adhesive. The thermal adhesive may be a heat-activated type or a thermal curable type. For example, the adhesive layer 1315 (or the first and second adhesive layers) including a thermal adhesive may be coupled or bonded to the vibration member 331 to surround the vibration generating unit 1311 by heat and pressure.

[0174] FIG. 6 is a diagram showing the vibration unit shown in FIG. 5 according to another embodiment of the present specification.

[0175] 6, a vibration part 1311a according to another embodiment of the present specification 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)).

[0176] Each of the plurality of first portions 1311a1 may include an inorganic material having a piezoelectric effect (or piezoelectric properties). For example, each of the plurality of first portions 1311a1 may include at least one 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 examples herein are not limited thereto.

[0177] According to an embodiment of the present specification, 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)). Each of the plurality of first portions 1311a1 is made of substantially the same material as the vibrating part 1311a described with reference to FIG. 5, and therefore a duplicated description thereof will be omitted.

[0178] Each of the second portions 1311a2 may be disposed between the first portions 1311a1. For example, each of the first portions 1311a1 may be disposed between two adjacent second portions 1311a2 of the second portions 1311a2. Each of the 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 larger 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 or different sizes.

[0179] Each of the plurality of second parts 1311a2 may be configured to fill a gap between two adjacent first parts 1311a1. Each of the plurality of second parts 1311a2 may be coupled or bonded to a side of the adjacent first part 1311a1 by being configured to fill a gap between two adjacent first parts 1311a1. According to an embodiment of the present specification, each of the plurality of first parts 1311a1 and the plurality of second parts 1311a2 may be disposed (or arranged) next to each other on the same plane (or the same layer). Thus, the vibration part 1311a may be expanded to a desired size or length by side coupling (or coupling) of the first part 1311a1 and the second part 1311a2.

[0180] According to an embodiment of the present specification, each of the plurality of second portions 1311a2 may absorb an impact applied to the first portion 1311a1, improve the durability of the first portion 1311a1, and provide flexibility to the vibration portion 1311a. Each of the plurality of second portions 1311a2 may include an organic material having soft properties. For example, the plurality of second portions 1311a2 may be one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the embodiment of the present specification is not limited thereto. For example, each of the plurality of second portions 1311a2 may be an organic portion, an organic material portion, an adhesive portion, an elastic portion, a bending portion, a damping portion, or a ductile (e.g., soft and / or elastic) portion, but the embodiment of the present specification is not limited thereto.

[0181] A first surface of each of the first portions 1311a1 and the second portions 1311a2 may be commonly connected to the first electrode portion 1311b. A second surface of each of the first portions 1311a1 and the second portions 1311a2 may be commonly connected to the second electrode portion 1311c. For example, one or all of the first electrode portion 1311b and the second electrode portion 1311c may be formed of a patterned electrode so as to correspond only to the first portions 1311a1.

[0182] The vibration unit 1311a according to another embodiment of the present specification may have a single thin film shape by arranging (or connecting) a plurality of first parts 1311a1 and second parts 1311a2 on the same plane. As a result, the vibration generating unit 1311 or the vibration generator 1310 including the vibration unit 1311a according to another embodiment of the present specification may vibrate due to the first parts 1311a1 having vibration characteristics, and may bend into a curved shape due to the second parts 1311a2 having flexibility.

[0183] 7 shows a diagram of the vibration part shown in FIG 5 according to another embodiment of the present specification.FIG 7 shows a diagram of a vibration part according to another embodiment of the present specification.

[0184] Referring to FIG. 7, a vibration portion 1311a according to another embodiment of the present specification may include a plurality of first portions 1311a3 and a second portion 1311a4 disposed between the plurality of first portions 1311a3.

[0185] Each of the first portions 1311a3 may be arranged to be spaced apart from each other along the first direction (X) and the second direction (Y). For example, each of the first portions 1311a3 may have a hexahedral shape having the same size as each other and be arranged in a lattice shape, but the embodiment of the present specification is not limited thereto. For example, each of the first portions 1311a3 may have a circular, elliptical, or polygonal shape having the same size as each other, but the embodiment of the present specification is not limited thereto.

[0186] Each of the plurality of first portions 1311a3 is made of substantially the same material as the first portion 1311a1 described with reference to FIG. 5, and therefore a duplicated description thereof may be omitted or simplified.

[0187] The second portion 1311a4 may be disposed between the first portions 1311a3 along each of the first direction (X) and the second direction (Y). The second portion 1311a4 may be connected or bonded to the adjacent first portions 1311a3 by filling a gap between two adjacent first portions 1311a3 or by being configured to surround each of the first portions 1311a3. The second portion 1311a4 is made of substantially the same material as the second portion 1311a2 described with reference to FIG. 6, and therefore a repeated description thereof may be omitted or simplified.

[0188] A first surface of each of the plurality of first portions 1311a3 and the second portions 1311a4 may be commonly connected to the first electrode portion 1311b. A second surface of each of the plurality of first portions 1311a3 and the second portions 1311a4 may be commonly connected to the second electrode portion 1311c. For example, one or all of the first electrode portion 1311b and the second electrode portion 1311c may be formed of a patterned electrode so as to correspond only to the plurality of first portions 1311a3.

[0189] The vibration unit 1311a according to another embodiment of the present specification may have a single thin film shape by arranging (or connecting) a plurality of first parts 1311a3 and second parts 1311a4 on the same plane. As a result, the vibration generating unit 1311 or the vibration generator 1310 including the vibration unit 1311a according to another embodiment of the present specification may vibrate due to the first parts 1311a3 having vibration characteristics, and may bend into a curved shape due to the second parts 1311a4 having flexibility.

[0190] FIG. 8 is a diagram showing an audio device according to another embodiment of the present specification.

[0191] 8, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to FIGS. 3 to 7, and therefore the same reference numerals are used therefor, and duplicate descriptions may be omitted or simplified.

[0192] The acoustic device 30 according to another embodiment of the present disclosure may further include a connecting member 350 .

[0193] The connecting member 350 may be located or configured between the vibration object and the acoustic device 30. The connecting member 350 may be located or configured on the rear surface of the acoustic device 30. For example, the connecting member 350 may be located or configured on the rear surface of the enclosure 310. For example, the connecting member 350 may be configured or disposed on the rear surface of the first enclosure 311. For example, the connecting member 350 may be disposed between the enclosure 310 and the vehicle interior material (or the mounting object). For example, the connecting member 350 may be disposed between the first enclosure 311 and the vehicle interior material (or the mounting object). For example, the mounting object may be a structure to which the acoustic device 30 or the enclosure 310 is mounted. For example, the connecting member 350 may be located or configured between the vehicle interior material 130 shown in FIG. 1 or FIG. 2 and the acoustic device 30 or the enclosure 310. For example, the coupling member 350 can be a binding member, an intermediate member, or a buffer member, but examples herein are not limited thereto.

[0194] The connecting member 350 may be configured to transmit vibrations of the first enclosure 311 to the vehicle interior material 130 due to vibrations of the sound generating module 330. This allows the vehicle interior material 130 to vibrate due to the vibrations transmitted via the connecting member 350 and generate (or output) sound.

[0195] According to another embodiment of the present disclosure, the first enclosure 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first enclosure 311 may face the vibration member 331. The outer surface of the first enclosure 311 may be the surface opposite the inner surface 311i of the first enclosure 311. The connecting member 350 may be connected to the outer surface of the first enclosure 311 around the opening 310o.

[0196] According to another embodiment of the present specification, the connecting member 350 may be made of a hard material. The connecting member 350 may be made of a material having high elasticity (or Young's modulus) and high tensile strength. For example, the connecting member 350 may be rubber, but the embodiment of the present specification is not limited thereto. For example, the rubber may be ethylene propylene rubber or urethane rubber, but the embodiment of the present specification is not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiment of the present specification is not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiment of the present specification is not limited thereto. For example, the tensile strength of EPDM is 50 kg / cm 2 ~200kg / cm 2 However, the examples herein are not limited thereto.

[0197] According to an embodiment of the present specification, 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 310o in the enclosure 310 or the first enclosure 311. The hole 350o may be disposed corresponding to (or overlapping with) the opening 310o. Thus, sound generated by vibration of the sound generating module 330 may be output to the interior space of the vehicle through the opening 310o and the hole 350o. The hole 350o may have the same shape as the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the hole 350o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiment of the present specification is not limited thereto.

[0198] According to one embodiment of the present specification, the connecting member 350 may be protected by a release film (or a protective film) 351. The release film 351 may be attached to an adhesive surface of the connecting member 350. The release film 351 may be peeled off (or removed) from the connecting member 350 when the audio device 30 including the connecting member 350 is attached to a vehicle interior material (or an object to be attached).

[0199] The connecting member 350 according to an embodiment of the present specification can prevent unnecessary vibrations of the sound generating module 330 from being transmitted to the interior space of the vehicle, thereby improving the acoustic characteristics and / or sound pressure characteristics of the audio device 30. Furthermore, the connecting member 350 can reduce heat generated when the sound generating module 330 vibrates.

[0200] FIG. 9 is a diagram showing an audio device according to another embodiment of the present specification.

[0201] 9, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to FIGS. 3 to 7, and therefore the same reference numerals are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0202] The acoustic device 30 according to another embodiment of the present disclosure may further include a soft member 360 .

[0203] The soft member 360 may be located or configured between the vibration object and the acoustic device 30. The soft member 360 may be located or configured on the back of the acoustic device 30. For example, the soft member 360 may be located or configured on the back of the enclosure 310. For example, the soft member 360 may be configured or disposed on the back of the first enclosure 311. For example, the soft member 360 may be disposed between the enclosure 310 and a vehicle interior material (or an object to be mounted). For example, the soft member 360 may be disposed between the first enclosure 311 and a vehicle interior material (or an object to be mounted). For example, the object to be mounted may be a structure to which the acoustic device 30 or the enclosure 310 is mounted. For example, the soft member 360 may be located or configured between the vehicle interior material 130 shown in FIG. 1 or FIG. 2 and the acoustic device 30 or the enclosure 310. For example, the flexible member 360 can be a connecting member, an intermediate member, or a buffer member, but examples herein are not limited thereto.

[0204] According to one embodiment of the present disclosure, the first enclosure 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first enclosure 311 may face the vibration member 331. The outer surface of the first enclosure 311 may be the surface opposite to the inner surface 311i. The soft member 360 may be coupled to the periphery of the opening 310o of the outer surface of the first enclosure 311.

[0205] According to an embodiment of the present specification, the soft member 360 may be made of a material different from that of the connecting member 350. The elasticity (or Young's modulus) of the soft member 360 may be different from that of the connecting member 350. For example, the soft member 360 may be made of a material having low elasticity. The soft member 360 may be made of a soft material. For example, the soft member 360 may be ethylene propylene rubber or urethane rubber, but the embodiment of the present specification is not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), and may be made of EPDM having low elasticity by changing the foaming rate of EPDM, but the embodiment of the present specification is not limited thereto. For example, the soft member 360 may be made of a single-sided tape, a single-sided sponge tape, a single-sided porous tape, a single-sided cushion tape, a double-sided tape, a double-sided sponge tape, a double-sided porous tape, or a double-sided cushion tape, but the embodiment of the present specification is not limited thereto.

[0206] According to an embodiment of the present specification, the soft member 360 may further include a hole 360o (or a second hole or an opening hole). For example, the soft member 360 may further include a hole 360o connected to the opening 310o. The hole 360o may be disposed corresponding to the opening 310o. As a result, sound caused by vibration of the sound generating module 330 may be output to the interior space of the vehicle through the opening 310o and the hole 360o. The hole 360o may have the same shape as the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the hole 360o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiment of the present specification is not limited thereto. The soft member 360 according to the embodiment of the present specification can absorb external impacts and therefore can protect the acoustic device 30 from external impacts. For example, the soft member 360 may be a porous member, a buffer member, a shock-absorbing member, or the like, but the embodiment of the present specification is not limited thereto.

[0207] According to one embodiment of the present specification, the soft member 360 may be protected by a release film (or a protective film) 361. The release film 361 may be attached to an adhesive surface of the soft member 360. The release film 361 may be peeled off (or removed) from the soft member 360 when the audio device 30 including the soft member 360 is attached to a vehicle interior material (or an object to which the audio device 30 is to be attached).

[0208] The soft member 360 according to an embodiment of the present specification can absorb external impacts and prevent damage to the sound generating module 330. This can improve the durability and reliability of the sound device 30.

[0209] According to other embodiments of the present specification, the soft member 360 may be configured in the enclosure 310 in place of the connecting member 350 described with reference to Fig. 8, or may be laminated to the connecting member 350. For example, the connecting member 350 and the soft member 360 may be disposed between the first enclosure 311 and the vehicle interior material (or the object to be mounted). For example, the connecting member 350 may be connected to the first enclosure 311, and the soft member 360 may be disposed between the connecting member 350 and the vehicle interior material (or the object to be mounted).

[0210] Fig. 107 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 11 is a cross-sectional view showing a vibration device of the sound-generating module shown in Fig. 8 according to an embodiment of the present specification.

[0211] 10 and 11, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 7, and therefore the same reference numerals are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0212] An acoustic device 30 according to another embodiment of the present disclosure may include a vibration device 333, 335 including multiple vibration generators 333A, 333B, 335A, 335B.

[0213] The first vibration device 333 of the vibration devices 333, 335 can include multiple vibration generators 333A, 333B. The first vibration device 333 can include a first vibration generator 333A and a second vibration generator 333B. For example, the first vibration generator 333A can be stacked on the second vibration generator 333B.

[0214] The first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may be stacked or laminated on 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 as each other, but the embodiments of the present specification 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 as each other within the tolerance range of the manufacturing process. In this way, 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.

[0215] The first vibration generator 333A of the first vibrating device 333 is substantially the same as the vibration generator 1310 of the first vibrating device 333 described with reference to FIGS. 3 to 7, and therefore a duplicated description thereof will be omitted.

[0216] The second vibration generator 333B of the first vibration device 333 may be coupled (or connected) or attached to the cover member 1313 of the first vibration generator 333A.

[0217] In the first vibrating device 333, the second vibration generator 333B may include a vibration generating unit 1311 including a vibrating unit 1311a, a first electrode unit 1311b, and a second electrode unit 1311c. The second vibration generator 333B may further include a cover member 1313. The cover member 1313 may be connected (or bonded) to a second surface of the vibration generating unit 1311 via an adhesive layer 1315. The vibration generating unit 1311, cover member 1313, and adhesive layer 1315 of the second vibration generator 333B are substantially the same as the vibration generating unit 1311, cover member 1313, and adhesive layer 1315 of the first vibrating device 333 described with reference to FIGS. 3 to 7, and therefore a duplicated description thereof will be omitted.

[0218] 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 coupled between the first vibration generator 333A and the second vibration generator 333B. For example, the intermediate member 333M may be disposed or coupled 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 coupled (or connected) to the cover member 1313 of the first vibration generator 333A, and may be coupled (or connected) to the adhesive layer 1315 and the first electrode portion 1311b of the second vibration generator 333B. Thereby, the second vibration generator 333B may be coupled (or connected) to the first vibration generator 333A via the intermediate member 333M. For example, the intermediate member 333M may be an adhesive member or a coupling member, but the embodiments of the present specification are not limited thereto.

[0219] The first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may be stacked or laminated on 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 as each other, but the embodiments of the present specification 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 as each other within the tolerance of the manufacturing process. In this way, 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.

[0220] The first vibration generator 335A of the second vibration device 335 is substantially the same as the vibration generator 1310 of the second vibration device 335 described with reference to FIGS. 3 to 7, and therefore a duplicated description thereof will be omitted.

[0221] The second vibration generator 335B of the second vibration device 335 may be coupled (or connected) or attached to the cover member 1313 of the first vibration generator 333A.

[0222] In the second vibrating device 335, the second vibration generator 335B may include a vibration generating unit 1311 including a vibrating unit 1311a, a first electrode unit 1311b, and a second electrode unit 1311c. The second vibration generator 335B may further include a cover member 1313. The cover member 1313 may be connected (or bonded) to a second surface of the vibration generating unit 1311 via an adhesive layer 1315. The vibration generating unit 1311, the cover member 1313, and the adhesive layer 1315 of the second vibration generator 335B are substantially the same as the vibration generating unit 1311, the cover member 1313, and the adhesive layer 1315 of the second vibrating device 335 described with reference to FIGS. 3 to 7, and therefore a duplicated description thereof will be omitted.

[0223] 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 coupled between the first vibration generator 335A and the second vibration generator 335B. For example, the intermediate member 335M may be disposed or coupled 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 coupled (or connected) to the cover member 1313 of the first vibration generator 335A, and may be coupled (or connected) to the adhesive layer 1315 and the first electrode portion 1311b of the second vibration generator 335B. Thereby, the second vibration generator 335B may be coupled (or connected) to the first vibration generator 335A via the intermediate member 333M. For example, the intermediate member 335M may be an adhesive member or a coupling member, but the embodiments of the present specification are not limited thereto.

[0224] The intermediate members 333M and 335M according to an embodiment of the present specification may be made of a material including an adhesive layer having excellent adhesion or bonding strength 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, but the embodiment of the present specification is not limited thereto. For example, the adhesive layer of the intermediate members 333M and 335M may include epoxy, acrylic, silicone, or urethane, but the embodiment of the present specification is not limited thereto. For example, the adhesive layer of the intermediate members 333M and 335M may include a urethane-based substance (or material) having a relatively soft characteristic. This minimizes vibration loss due to displacement interference between the first vibration generators 333A, 335A and the second vibration generators 333B, 335B, or allows each of the first vibration generators 333A, 335A and the second vibration generators 333B, 335B to be freely displaced (or vibrated or driven).

[0225] According to other embodiments of the present specification, each of the first vibration device 333 and the second vibration device 335 may include multiple vibration generators 333A, 333B, 335A, 335B, so that either the first vibration device 333 or the second vibration device 335 may be omitted, although embodiments of the present specification are not limited thereto.

[0226] Acoustic device 30 according to other embodiments of the present specification can have the same effects as acoustic device 30 described with reference to Fig. 3 to Fig. 9. Furthermore, acoustic device 30 according to other embodiments of the present specification includes a plurality of vibration generators 333A, 333B, 335A, 335B that are stacked (or overlapped or superimposed) so that vibration devices 333, 335 vibrate (or displace or drive) in the same direction, thereby maximizing or increasing the displacement (or bending force or driving force) or amplitude displacement of vibrating member 331, and thereby improving the low-frequency band characteristics of the sound generated by the vibration of vibrating member 331.

[0227] FIG. 12 is a diagram showing an audio device according to another embodiment of the present specification.

[0228] 12, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to FIGS. 3 to 8, and therefore the same reference numerals are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0229] An acoustic device 30 according to another embodiment of the present specification may further include a connecting member 350. The description of the connecting member 350 is substantially the same as that described with reference to FIG. 8, and therefore the description here may be omitted or simplified.

[0230] The connecting member 350 according to other embodiments of the present specification may be disposed on the rear surface of the enclosure 310. The connecting member 350 may be disposed between the enclosure 310 and the vehicle interior material 130. For example, the connecting member 350 may be disposed between the first enclosure 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected or coupled to the enclosure 310 by the connecting member 350. For example, the connecting member 350 may be connected or coupled to the rear surface of the first enclosure 311 by the connecting member 350. In this way, the acoustic device 30 or the enclosure 310 may be connected or coupled to the vehicle interior material 130 by the connecting member 350.

[0231] According to an embodiment of the present specification, the connecting member 350 is made of a relatively hard material, and therefore can transmit vibrations of the first enclosure 311 caused by the vibration of the vibrating device to the vehicle interior material 130. As a result, the vehicle interior material 130 can vibrate and generate sound due to the vibrations transmitted through the connecting member 350. For example, if the connecting member 350 is made of a relatively hard material, the vehicle interior material 130 connected to the connecting member 350 can become a diaphragm for generating (or outputting) sound. For example, if the connecting member 350 is made of a relatively hard material, the vibrations of the first enclosure 311 can be transmitted to the vehicle interior material 130 more efficiently.

[0232] According to an embodiment of the present specification, the connecting member 350 may further include a first hole 350o (or holes). For example, the connecting member 350 may further include a first hole 350o connected to an opening 310o in the enclosure 310. The first hole 350o may be disposed corresponding to (or overlapping) the opening 310o. The first hole 350o may have the same shape as the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the first hole 350o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiment of the present specification is not limited thereto.

[0233] According to an embodiment of the present specification, the vehicle interior material 130 may further include a second hole 137 (or hole, opening hole, or through hole). The second hole 137 (or hole) may include one hole or multiple holes. For example, the second hole 137, which is one hole, may correspond (or overlap) with the opening 310o and the first hole 350o. For example, the second hole 137, which is one hole, may have the same or larger size as the opening 310o and the same size as the first hole 350o. For example, the multiple holes may be arranged at the same or different intervals. The second hole 137 may be arranged to correspond (or overlap) with the opening 310o and / or the first hole 350o. For example, the second hole 137 (or hole) may be accommodated within the opening 310o and / or the first hole 350o. For example, the second hole 137 may be a through hole, an opening, an aperture hole, a slit, a slot, an acoustic hole, an acoustic emission hole, or an acoustic output hole, but the embodiments herein are not limited thereto.

[0234] According to an embodiment of the present specification, sound generated by vibration of the sound generating module 330 may be output to the vehicle interior space through the opening 310o, the first hole 350o, and the second hole 137. The acoustic device 30 or the enclosure 310 may vibrate the vehicle interior material 130 through the connecting member 350 to output sound generated by the vibration of the vehicle interior material 130 to the vehicle interior space.

[0235] FIG. 13 is a diagram showing an audio device according to another embodiment of the present specification.

[0236] 13, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figs. 3, 4, and 9, and therefore the same reference numerals are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0237] An acoustic device 30 according to another embodiment of the present specification may further include a flexible member 360. The description of the flexible member 360 is substantially the same as that described with reference to FIG. 6, so the description here may be omitted or simplified.

[0238] The soft member 360 according to other embodiments of the present specification may be disposed on the rear surface of the enclosure 310. The soft member 360 may be disposed between the enclosure 310 and the vehicle interior material 130. For example, the soft member 360 may be disposed between the first enclosure 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected or joined to the enclosure 310 by the soft member 360. For example, the vehicle interior material 130 may be connected or joined to the rear surface of the first enclosure 311 by the soft member 360. In this way, the acoustic device 30 or the enclosure 310 may be connected or joined to the vehicle interior material 130 by the soft member 360.

[0239] The vehicle interior material 130 according to other embodiments of the present specification may include one or more curved portions (or one or more bent portions) 136. The soft member 360 may be configured to correspond to one or more curved portions 136. The soft member 360 may be in contact with one or more curved portions 136. For example, the vehicle interior material 130 may include one or more curved portions 136 in contact with the soft member 360. The soft member 360 may be in contact with the entire vibration region of the vehicle interior material 130. The soft member 360 may be in direct contact with the entire vibration region of the vehicle interior material 130. The soft member 360 may be in direct contact with one or more curved portions 136. For example, the soft member 360 may be in direct contact with at least one or more curved portions 136 without an intermediary or intermediate member.

[0240] According to an embodiment of the present specification, the soft member 360 may be in direct contact with one or more curved portions 136 without a separate adhesive member or a separate intermediate member (or medium). For example, the soft member 360 may be in direct contact with the entire vibration region of the vehicle interior material 130 without a separate adhesive member or a separate intermediate member (or medium). The vibration generated by the sound generating module 330 may be transmitted to the entire vibration region of the vehicle interior material 130 including one or more curved portions 136 and flat portions by the soft member 360. As a result, sound is generated (or output) by the vibration of the entire vibration region of the vehicle interior material 130, and the acoustic characteristics and / or sound pressure characteristics of the sound band including the low frequency band generated by the sound generating module 330 may be improved.

[0241] According to one embodiment of the present specification, the flexible member 360 may be made of a relatively soft material for connection (or coupling) with the vehicle interior material 130 including one or more curved portions 136 and a flat portion. For example, when the one or more curved portions 136 are included in the vibration area of ​​the vehicle interior material 130, the flexible member 360 may be made of a relatively soft material. For example, the flexible member 360 according to other embodiments of the present specification made of a soft material may be a sponge member, a cushion member, or a soft member.

[0242] According to an embodiment of the present specification, the soft member 360 may be a single-sided tape, a single-sided sponge tape, a single-sided porous tape, a single-sided cushion tape, a double-sided tape, a double-sided sponge tape, a double-sided porous tape, or a double-sided cushion tape, etc., made of a relatively soft material (or soft material), but the embodiment of the present specification is 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.

[0243] According to an embodiment of the present specification, the soft member 360 may be disposed between the enclosure 310 and one or more curved surfaces 136 of the vehicle interior material 130. The soft member 360 may be disposed between the first enclosure 311 and one or more curved surfaces 136 of the vehicle interior material 130. For example, the acoustic device 30 or the first enclosure 311 may be connected or joined to one or more curved surfaces 136 of the vehicle interior material 130 by the soft member 360. In this way, the soft member 360 can fill one or more curved surfaces 136 of the vehicle interior material 130 or cover one or more curved surfaces 136 of the vehicle interior material 130, thereby absorbing external impacts and protecting the acoustic device 30.

[0244] According to an embodiment of the present specification, the flexible member 360 may further include a first hole 360o (or hole). For example, the flexible member 360 may further include a first hole 360o connected to an opening 310o in the sound generating module 330. The first hole 360o may be disposed corresponding to the opening 310o. The first hole 360o may have the same shape as the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the first hole 360o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiment of the present specification is not limited thereto.

[0245] According to an embodiment of the present specification, 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, which is one hole, may correspond (or overlap) with the opening 310o and the first hole 350o. For example, the second hole 137, which is one hole, may have a size equal to or larger than the opening 310o and may have a size equal to the first hole 350o. The second hole 137 may be disposed corresponding to (or overlapping) the opening 310o and / or the first hole 350o. For example, the second hole 137 (or hole) may be accommodated within the opening 310o and / or the first hole 350o. For example, the second hole 137 may be an opening, an opening hole, a slit, or a slot, but the embodiment of the present specification is not limited thereto.

[0246] According to an embodiment of the present specification, sound generated by vibration of the sound generating module 330 may be output to the vehicle interior space through the opening 310o, the first hole 360o, and the second hole 137. The acoustic device 30 or the enclosure 310 may vibrate one or more curved surfaces 136 in the vehicle interior material 130 through the soft member 360, thereby outputting sound generated by vibration of the vehicle interior material 130 to the vehicle interior space. Furthermore, an external impact applied to the acoustic device 30 or the enclosure 310 may be absorbed by the soft member 360, so that the acoustic device 30 may be protected from the external impact.

[0247] Fig. 14 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 15 is an exploded perspective view of the acoustic device shown in Fig. 12 according to another embodiment of the present specification. Fig. 16 is a diagram showing a method of connecting an acoustic device according to another embodiment of the present specification to a coupling part.

[0248] 14 and 15, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310, a sound generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the sound generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 13, and therefore the same reference numerals are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0249] When the acoustic device 30 is connected to the vehicle interior material 130, the acoustic device 30 and the vehicle interior material 130 may be connected by an adhesive. When the acoustic device 30 is connected to the vehicle interior material 130 by an adhesive, there is a problem that rework or replacement is difficult when the acoustic device 30 is defective or broken, and there is a problem that the acoustic device 30 may be damaged during rework or replacement. Therefore, the inventors of the present specification have conducted various studies and experiments to facilitate rework or replacement of the acoustic device 30 connected to the vehicle interior material 130 and reduce damage to the acoustic device 30. Through various studies and experiments, they have invented an acoustic device that facilitates rework or replacement of the acoustic device 30 connected to the vehicle interior material 130 and does not cause damage during rework or replacement of the acoustic device 30. This will be described below.

[0250] The acoustic device 30 according to another embodiment of the present specification may further include a coupling unit 500 .

[0251] The coupling portion 500 may be located or configured between the vehicle interior material 130 and the sound generating module 330. The coupling portion 500 may be located on the rear surface of the enclosure 310. The coupling portion 500 may be located between the rear surface of the enclosure 310 and the vehicle interior material 130. For example, the coupling portion 500 may be configured to couple the enclosure 310 to the vehicle interior material 130 (or an object to be mounted). The coupling portion 500 may be configured to couple the enclosure 310 to the vehicle interior material 130 to which the enclosure 310 is mounted. For example, the coupling portion 500 may be configured to couple the enclosure 310 to the vehicle interior material 130 to which the first enclosure 311 is mounted. For example, the coupling portion 500 may be configured to couple or connect the enclosure 310 to the vehicle interior material 130. For example, the acoustic device 30 or the enclosure 310 may be connected or coupled to the vehicle interior material 130 by the coupling part 500. Sound generated by vibration of the sound generating module 330 may be output to the vehicle interior space through the coupling part 500. For example, the coupling part 500 may be a coupling means, a coupling structure, an acoustic guide member, a wave guide, or an acoustic emission member, but the embodiments of the present specification are not limited thereto.

[0252] According to an embodiment of the present specification, the coupling portion 500 may be accommodated or inserted in the enclosure 310. The coupling portion 500 may be accommodated or inserted in the first enclosure 311. The coupling portion 500 may be accommodated or inserted in the hole 137 of the vehicle interior material 130. The coupling portion 500 may be accommodated or inserted in the opening 310o and the hole 137 of the first enclosure 311. For example, the hole 137 (or the opening hole) of the vehicle interior material 130 may be coupled with the opening 310o. For example, the coupling portion 500 may be configured to be coupled to the first enclosure 311 through the hole 137 and the opening 310o of the vehicle interior material 130.

[0253] According to one embodiment of the present specification, since the enclosure 310 encloses both sides (or the top and bottom directions with respect to the lateral direction) of the sound generating module 330, the internal space 313 of the enclosure 310 can be minimized. For example, since the first enclosure 311 and the second enclosure 312 enclose both sides (or the top and bottom directions with respect to the lateral direction) of the sound generating module 330, the first internal space 313a and the second internal space 313b of the enclosure 310 can be minimized. This can reduce the thickness of the sound generating module 330, and therefore the thickness of the acoustic device 30.

[0254] The coupling unit 500 according to an embodiment of the present specification may further include a hollow portion 501. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310. For example, the hollow portion 501 may be connected to the internal space 313 through the opening 310o of the enclosure 310. For example, the hollow portion 501 may be connected to the first space 313a of the internal space 313 of the enclosure 310 through the opening 310o of the enclosure 310. For example, the hollow portion 501 may be connected to the first space 313a through the opening 310o of the first enclosure 311. Sound generated by the vibration of the sound generating module 330 may be output to the interior space of the vehicle by the hollow portion 501. For example, the hollow portion 501 may be an acoustic outlet or an acoustic output port, but the embodiment of the present specification is not limited thereto.

[0255] The coupling portion 500 according to an embodiment of the present disclosure may further include a hollow member 502 and a latch member 503 .

[0256] The hollow member 502 may include a hollow portion 501. The hollow portion 501 may be coupled or connected to the hole (or first hole) 137 of the vehicle interior material 130. The hollow member 502 may be coupled or connected to the hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the hollow member 502 may be coupled or connected to the hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. For example, the hollow member 502 may be accommodated or inserted into the opening 310o of the first enclosure 311 through the hole 137 of the vehicle interior material 130. For example, the connecting portion 500 may be coupled or connected to the enclosure 310 or the first enclosure 311 through the hole 137 of the vehicle interior material 130.

[0257] The latch member 503 may be configured to be connected or coupled to the vehicle interior material 130 (or an object to be mounted). For example, the latch member 503 may be configured to be connected or coupled to the vehicle interior material 130 to which the enclosure 310 is mounted. 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 interior surface) 130s of the vehicle interior material 130 around the hole 137 (or through hole) of the vehicle interior material 130. For example, the latch member 503 may be a clasp or the like, but the embodiments of the present specification are not limited thereto.

[0258] The coupling portion 500 according to embodiments of the present disclosure may further include a hook member 504 .

[0259] The first enclosure 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first enclosure 311 may face the vibration member 331. The outer surface of the first enclosure 311 may be the surface opposite the inner surface 311i.

[0260] The hook member 504 may be coupled to a first side of the hollow member 502. The hook member 504 may be coupled to an inner surface 311i of the enclosure 310 facing the vibration member 331 in the sound generating module 330 or the acoustic device 30. The hook member 504 may be coupled to an inner surface 311i or an inclined surface 311s of the enclosure 310 in the inner space 313 of the enclosure 310. The hook member 504 may be accommodated or inserted in the opening 310o of the first enclosure 311. For example, the hook member 504 may be accommodated or inserted in the opening 310o of the first enclosure 311 through the vehicle interior material 130. For example, the latch member 503 may be coupled to a second side of the hollow member 502. The latch member 503 may be coupled to a rear surface (or interior surface) 130s of the vehicle interior material 130 exposed to the interior space of the vehicle. For example, the latch member 503 may be coupled to one surface (or interior surface or back surface) 130s of the vehicle interior material 130 exposed to the interior space of the vehicle.

[0261] The enclosure 310 or the first enclosure 311 may further include a home portion 311g. For example, the home portion 311g may be configured on an internal surface 311i in the internal space 313. For example, the home portion 311g may be configured around an opening 310o of the internal surface 311i in the internal space 313.

[0262] The hook member 504 may include an inclined surface 504s. For example, the hook member 504 may include an inclined surface 504s due to the shape of the latch member 503. The inclined 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 home portion 311g of the enclosure 310 or the first enclosure 311. For example, the hook member 504 may be coupled or joined to the home portion 311g of the enclosure 310 or the first enclosure 311. For example, the hook member 504 may be received (or inserted) into the opening 310o through the vehicle interior material 130 and coupled or joined to the home portion 311g. For example, the hook member 504 may be received (or inserted) into the opening 310o through the vehicle interior material 130 and coupled or joined to the home portion 311g by a hook coupling manner. For example, the home portion 311g and the inclined surface 504s may be a fastening guide surface between the enclosure 310 and the coupling portion 500. For example, the hook member 504 may be a protrusion or a projection, but the embodiment of the present specification is not limited thereto. For example, the home portion 311g may be a recess or the like, but the embodiment of the present specification is not limited thereto.

[0263] 13, the coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the coupling part 500 may be received or inserted into the opening 310o of the first enclosure 311 through the hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hook member 504 of the coupling part 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling part 500 may be inserted (or received) into the opening 310o of the first enclosure 311 and coupled or connected to the home part 311g of the first enclosure 311. For example, the hook member 504 of the coupling part 500 may be inserted (or received) into the opening 310o of the first enclosure 311, whereby the hook member 504 of the coupling part 500 may be pushed (or compressed) to the center (or inside) of the hollow part 501 by an elastic force, and then elastically restored onto the home part 311g of the first enclosure 311 by an elastic restoring force, and may be coupled or connected to the opening 310o of the first enclosure 311. For example, the inclined surface 504s of the hook member 504 may facilitate the insertion of the coupling part 500 and the compression of the hook member 504 when the coupling part 500 is inserted into the opening 310o of the first enclosure 311. For example, the hook member 504 may be coupled or connected to the home part 311g of the first enclosure 311. For example, the hook member 504 may be coupled to the home part 311g of the first enclosure 311 by a hook coupling manner.

[0264] According to an embodiment of the present specification, since the acoustic device 30 can be connected or coupled to the vehicle interior material 130 by the coupling unit 500, rework or replacement of the acoustic device 30 connected to the vehicle interior material 130 can be facilitated, and damage to the acoustic device 30 and / or the sound generating module 330 during rework or replacement can be prevented. According to an embodiment of the present specification, by configuring the coupling unit 500, the acoustic device 30 can be easily attached or mounted in a small area (or space) between the vehicle interior material 130 and the vehicle structure. According to an embodiment of the present specification, since the acoustic device 30 is connected or mounted to the vehicle interior material 130 by the coupling unit 500, no trembling sound (or vibration sound) is generated between the acoustic device 30 and the vehicle interior material 130, and therefore the acoustic characteristics and / or sound pressure characteristics of the acoustic device 30 can be improved.

[0265] As shown in FIG. 16, an acoustic device 30 according to another embodiment of the present disclosure may further include a connecting member 350.

[0266] Referring to FIG. 16, the connecting member 350 can be between the vehicle interior material 130 and the enclosure 310. The connecting member 350 can be between the vehicle interior material 130 and the first enclosure 311. The connecting member 350 can include a second hole (or holes) 350o. For example, the second hole 350o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the second hole 350o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. The second hole 350o can be connected to the opening 310o of the enclosure 310. For example, the second hole 350o can be connected to the opening 310o of the first enclosure 311. The second hole 350o can be disposed corresponding to the opening 310o.

[0267] The coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the first hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hollow member 502 may be accommodated in the opening 310o through the first hole 137 and the second hole (or the connecting hole 350o) of the vehicle interior material 130. For example, the coupling part 500 may be accommodated or inserted into the opening 310o of the first enclosure 311 through the first hole 137 of the vehicle interior material 130 and the second hole 350o of the connecting member 350 in the interior space of the vehicle. For example, the hook member 504 of the coupling part 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, when the hollow member 502 of the coupling part 500 is inserted (or housed) into the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling part 500 is pushed (or compressed) to the center (or inside) of the hollow part 501 by an elastic force, and then elastically restored onto the home part 311g of the first enclosure 311 by an elastic restoring force, so as to be connected or coupled to the opening 310o of the first enclosure 311. For example, the hook member 504 may be coupled to the home part 311g of the first enclosure 311 by a hook coupling method.

[0268] An acoustic device 30 according to another embodiment of the present specification may further include a soft member 360 instead of the connecting member 350 shown in FIG.

[0269] Referring to FIG. 16, the soft member 360 can be between the vehicle interior material 130 and the enclosure 310. The soft member 360 can be between the vehicle interior material 130 and the first enclosure 311. The soft member 360 can include a second hole (or hole or third hole) 360o. For example, the second hole 360o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the second hole 360o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. The second hole 360o can be connected to the opening 310o of the enclosure 310. For example, the second hole 360o can be connected to the opening 310o of the first enclosure 311. The second hole 360o can be disposed corresponding to the opening 310o.

[0270] The coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the first hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hollow member 502 may be accommodated in the opening 310o through the first hole 137 and the second hole (or the coupling hole 360o) of the vehicle interior material 130. For example, the coupling part 500 may be accommodated or inserted into the opening 310o of the first enclosure 311 through the first hole 137 of the vehicle interior material 130 and the second hole 360o of the soft member 360 in the interior space of the vehicle. For example, the hook member 504 of the coupling part 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, when the hollow member 502 of the coupling part 500 is inserted (or housed) into the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling part 500 is pushed (or compressed) to the center (or inside) of the hollow part 501 by an elastic force, and then elastically restored onto the home part 311g of the first enclosure 311 by an elastic restoring force, so as to be connected or coupled to the opening 310o of the first enclosure 311. For example, the hook member 504 may be coupled to the home part 311g of the first enclosure 311 by a hook coupling method.

[0271] An acoustic device 30 according to another embodiment of the present specification may further include a connecting member 350 and a soft member 360 as shown in FIG.

[0272] 17, the coupling part 500 may be coupled or connected to the acoustic device 30 via the first hole 137 of the vehicle interior material 130, the second hole 350o of the connecting member, the third hole 360o of the soft member 360, and the opening 310o of the enclosure 310 (in the direction of the arrow). For example, the hollow member 502 may be accommodated in the opening 310o via 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 part 500 may be coupled or connected to the enclosure 310 via 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 enclosure 310. For example, the coupling portion 500 may be coupled or connected to the acoustic device 30 via the first hole 137 of the vehicle interior material 130, the second hole 350o of the connecting member, the third hole 360o of the soft member 360, and the opening 310o of the first enclosure 311 (in the direction of the arrows).

[0273] The method of connecting the vehicle interior material 130 and the audio device 30 is the same as that described with reference to FIG. 16, in which the connecting member 350 and the soft member 360 are both configured, and therefore a description thereof will be omitted.

[0274] Fig. 18 is a diagram showing an audio device according to another embodiment of the present specification. Fig. 19 is a diagram showing an audio device according to another embodiment of the present specification.

[0275] 18 and 19, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310 and a sound generating module 330. The description of the enclosure 310 and the sound generating module 330 is substantially the same as that described with reference to Figs. 3 to 12, so the same reference numerals are used therefor, and duplicated descriptions thereof may be omitted or simplified.

[0276] An audio device 30 according to another embodiment of the present specification may include a coupling part 500 that is coupled to a vehicle interior material 130. The description of the coupling part 500 is substantially the same as that described with reference to Figures 14 to 17, so the same reference numerals are used thereto, and duplicated descriptions thereof may be omitted or simplified.

[0277] Referring to FIG. 18, the enclosure 310 according to another embodiment of the present specification may include an opening 310o. For example, the first enclosure 311 may include an opening 310o. The opening 310o of the enclosure 310 or the first enclosure 311 may include two (or a pair) of opening lines (line holes) that intersect with each other. The opening 310o of the enclosure 310 or the first enclosure 311 may include a cross (+) shape. The vehicle interior material 130 may include a hole 137. The hole 137 may be arranged corresponding to the opening 310o. For example, the hole 137 may be arranged corresponding to the shape of the opening 310o. For example, the shape of the hole 137 may be the same as the shape of the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the shape of the hole 137 may be a cross (+) shape.

[0278] The coupling portion 500 according to other embodiments of the present specification may include a hollow portion 501. The hollow portion 501 may be arranged corresponding to the opening 310o. For example, the hollow portion 501 may be arranged corresponding to the shape of the opening 310o. The shape of the hollow portion 501 may be the same as the shape of the opening 310o, but the embodiments of the present specification are not limited thereto. For example, the shape of the hollow portion 501 may be a cross (+) shape. The hook member 504 may vary depending on the shape of the hollow portion 501. For example, the hook member 504 may include multiple hook members or clasps depending on the cross (+) shape of the hollow portion 501.

[0279] Referring to FIG. 19, the opening 310o of the enclosure 310 or the first enclosure 311 according to other embodiments of the present specification may include three opening lines (line holes) intersecting with each other. The opening 310o of the enclosure 310 or the first enclosure 311 may include an asterisk shape. The vehicle interior material 130 may include a hole 137. The hole 137 may be arranged corresponding to the opening 310o. For example, the hole 137 may be arranged corresponding to the shape of the opening 310o. For example, the shape of the hole 137 may be the same as the shape of the opening 310o, but the embodiments of the present specification are not limited thereto. For example, the shape of the hole 137 may be a star shape.

[0280] The hollow portion 501 according to other embodiments of the present specification may be arranged to correspond to the shape of the opening 310o. For example, the hollow portion 501 may be arranged to correspond to the shape of the opening 310o. The shape of the hollow portion 501 may be the same as the shape of the opening 310o, but the embodiments of the present specification are not limited thereto. For example, the shape of the hollow portion 501 may be a star (*) shape. The hook member 504 may vary depending on the shape of the hollow portion 501. For example, the hook member 504 may include multiple hook members or clasps depending on the star (*) shape of the hollow portion 501.

[0281] According to an embodiment of the present specification, the opening 310o is configured in a cross (+) or star (*) shape, so that the amount of sound emitted from the audio device 30 can be increased and the aesthetic appearance can be improved. In addition, the hook member 504 covers the hole 137 of the vehicle interior material 130, so that the inflow of dust or foreign matter from the outside can be minimized, and thus the sound generating module 330 or the audio device 30 can be protected.

[0282] In Fig. 18 and Fig. 19, an acoustic device 30 according to another embodiment of the present specification may further include one or more of the connecting member 350 and the soft member 360 described with reference to Figs. 14 to 16 or Fig. 17. For example, the shape of the hole 350o of the connecting member 350 may be arranged corresponding to the shape of the opening 310o of the enclosure 310. For example, the shape of the hole 350o of the connecting member 350 may be a cross (+) shape or a star (*) shape. For example, the shape of the hole 360o of the soft member 360 may be arranged corresponding to the shape of the opening 310o of the enclosure 310. For example, the shape of the hole 360o of the soft member 360 may be a cross (+) shape or a star (*) shape.

[0283] Fig. 20 is a diagram showing an audio device according to another embodiment of the present specification, and Fig. 21 is a diagram showing a method of connecting the audio device shown in Fig. 20 and a connecting portion according to another embodiment of the present specification.

[0284] 20 and 21, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310 and a sound generating module 330. The description of the enclosure 310 and the sound generating module 330 is substantially the same as that described with reference to Figs. 3 and 13, so the same reference numerals are used therefor, and the duplicated description thereof may be omitted or simplified.

[0285] According to an embodiment of the present specification, the enclosure 310 may include a protrusion 315. The first enclosure 311 may include a protrusion 315. The protrusion 315 may protrude from the first enclosure 311. The protrusion 315 may protrude from a rear surface (or an external surface) 311r of the first enclosure 311. For example, the protrusion 315 may protrude from the enclosure 310 or the first enclosure 311 to surround the opening 310o. For example, the protrusion 315 may protrude from a rear surface (or an external surface) 311r of the enclosure 310 or the first enclosure 311 to surround the opening 310o. Thus, the protrusion 315 may include a hollow hole (or a hole or an open hole) 315o connected (or overlapping) with the opening 310o. The hollow portion 501 may be accommodated in the hollow hole 315o of the protrusion 315 and connected to the internal space 313 via 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 protrusion 315 may be accommodated or inserted in the hole 137, the hollow hole 315o, and the opening 310o. For example, the hook member 504 may be accommodated or inserted in the opening 310o of the enclosure 310 or the first enclosure 311 via the vehicle interior material 130 (or the mounting object) and the protrusion 315. The hook member 504 may be connected or coupled to the inner surface 311i of the enclosure 310 or the first enclosure 311. For example, the hook member 504 may be coupled or connected to the home portion 311g of the enclosure 310 in the interior space 313 of the enclosure 310. For example, the hook member 504 may be coupled (or connected) to the home portion 311g of the enclosure 310 in the interior space 313 of the enclosure 310 by a hook coupling manner.

[0286] According to an embodiment of the present specification, the first enclosure 311 may include an inner surface and an outer surface 311r. The inner surface of the first enclosure 311 may face the vibration member 331. The outer surface 311r of the first enclosure 311 may be a surface opposite to the inner surface of the first enclosure 311. For example, the protrusion 315 may protrude from the outer surface 311r of the first enclosure 311. The protrusion 315 may protrude from the outer surface 311r of the first enclosure 311 to have a hollow hole (or hole or open hole) 315o connected (or overlapped) with the opening 310o.

[0287] According to an embodiment of the present specification, the audio device 30 may include a coupling part 500 that is coupled to the vehicle interior material 130. The description of the coupling part 500 is substantially the same as that described with reference to Figures 14 to 16, so the same reference numerals are used therefor, and the duplicated description thereof may be omitted or simplified.

[0288] Referring to FIG. 20, the coupling portion 500 may include a hollow portion 501. The hollow portion 501 may be coupled or connected to the protrusion 315. The protrusion 315 may surround the opening 310o of the enclosure 310. The protrusion 315 may surround the opening 310o of the first enclosure 311. The protrusion 315 may include a hollow hole 315o that corresponds (is connected) to the opening 310o of the first enclosure 311. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 through the protrusion 315 and the opening 310o. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 through the hollow hole 315o of the protrusion 315 and the opening 310o. For example, the coupling portion 500 may be configured to be received in and coupled to the protrusion 315 and coupled to one surface of the vehicle interior material 130 exposed to the interior space. For example, the coupling portion 500 may be coupled to the protrusion 315 and coupled to the interior space 313 of the enclosure 310 via the opening 310o. For example, the coupling portion 500 may be coupled or coupled to the enclosure 310 in the interior space 313 of the enclosure 310 via the protrusion 315 and the opening 310o.

[0289] According to one embodiment of the present disclosure, coupling portion 500 may include a hollow member 502 and a latch member 503 .

[0290] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted (or housed) in the protrusion 315. The hollow member 502 may be inserted (or housed) in the hollow hole 315o of the protrusion 315. The hollow member 502 may be inserted (or housed) in the protrusion 315 and coupled or connected to the opening 310o of the enclosure 310 or the first enclosure 311.

[0291] The latch member 503 may be coupled to the hollow member 502. The latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the object to which it is attached). For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the object to which it is attached) to which the enclosure 310 is attached. For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 (or the object to which it is attached) to which the first enclosure 311 is attached.

[0292] According to an embodiment of the present specification, the vehicle interior material 130 may include a first surface and a second surface different (or opposite) from the first surface. The first surface may be a surface facing the enclosure 310. The hole 137 may be configured in the first surface and the second surface. For example, the hole 137 may be configured to penetrate the first surface and the second surface. For example, the latch member 503 may be configured to penetrate (or pass) the hole 137 and be coupled to the second surface (or interior surface or back surface) 130s of the vehicle interior material 130 (or the mounting object).

[0293] According to one embodiment of the present disclosure, the coupling portion 500 may include a hook member 504 .

[0294] The hook member 504 may be accommodated or inserted into the opening 310o of the first enclosure 311 via the vehicle interior material 130 (or the mounting object) and the protrusion 315. The hook member 504 may be coupled or connected to the inner surface 311i of the first enclosure 311. The hook member 504 may be coupled or connected to the inner surface 311i of the enclosure 310 in the inner space 313 of the enclosure 310. For example, the hook member 504 may be coupled or connected to the inner surface 311i of the first enclosure 311 facing the vibration member 331 in the sound generating module 330. For example, the hook member 504 may be coupled or connected to the home portion 311g of the first enclosure 311. For example, the hook member 504 may be coupled or connected to the home portion 311g of the first enclosure 311 by a hook coupling manner.

[0295] 14 and 20, the hook member 504 may be coupled to a first side of the hollow member 502. The hook member 504 may be coupled to an inner surface 311i or a home portion 311g of the enclosure 310 facing the vibration member 331 in the sound generating module 330. The hook member 504 may be coupled to an inner surface 311i or a home portion 311g of the enclosure 310 in the inner space 313 of the enclosure 310. For example, the latch member 503 may be coupled to a second side of the hollow member 502. The latch member 503 may be coupled to one surface (or an interior surface or a back surface) 130s of the vehicle interior material 130 exposed to the interior space.

[0296] 20, the coupling portion 500 may be coupled or connected to the protrusion 315 of the enclosure 310 through the first hole 137 of the vehicle interior material 130 (in the direction of the arrow). For example, the coupling portion 500 may be coupled or connected to the protrusion 315 of the first enclosure 311 through the first hole 137.

[0297] 21, the hook member 504 of the coupling part 500 may be connected or joined to the protrusion 315 of the first enclosure 311. For example, when the hollow member 502 of the coupling part 500 is inserted (or received) into the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling part 500 is pushed (or compressed) (in the direction of the horizontal arrow) toward the center (or inside) of the hollow part 501 (in the direction of the dotted line) by an elastic force, and then elastically restored onto the home part 311g of the first enclosure 311 by an elastic restoring force, and may be connected or joined to the opening 310o of the first enclosure 311. For example, the inclined surface 504s of the hook member 504 may facilitate the insertion of the coupling part 500 and the compression of the hook member 504 when the coupling part 500 is inserted (or received) into the opening 310o of the first enclosure 311. For example, the hook member 504 may be coupled or connected to the home portion 311g of the first enclosure 311. For example, the hook member 504 may be connected to the home portion 311g of the first enclosure 311 by a hook coupling manner.

[0298] According to one embodiment of the present specification, the acoustic device 30 may be coupled or connected to the vehicle interior material 130 by the coupling portion 500. According to one embodiment of the present specification, since the enclosure 310 includes the protrusion 315, the coupling portion 500 may be easily coupled or connected to the protrusion 315, thereby simplifying the coupling or connecting process between the vehicle interior material 130 and the acoustic device 30.

[0299] An acoustic device 30 according to another embodiment of the present specification may further include one or more of the connecting member 350 and the soft member 360 described with reference to Fig. 16 or 17. 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 protrusion 315 of the enclosure 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.

[0300] Fig. 22 is a diagram showing an audio device according to another embodiment of the present specification. Fig. 23 is a diagram showing a method of connecting the audio device shown in Fig. 22 and a connecting portion according to another embodiment of the present specification.

[0301] 22 and 23, an acoustic device 30 according to another embodiment of the present specification may include an enclosure 310 and a sound generating module 330. The description of the enclosure 310 and the sound generating module 330 is substantially the same as that described with reference to Figs. 3 to 13, so the same reference numerals are used therefor, and duplicated descriptions thereof may be omitted or simplified.

[0302] According to one embodiment of the present disclosure, the enclosure 310 may include a protrusion 315. The first enclosure 311 may include a protrusion 315. The protrusion 315 may protrude from a rear surface (or outer surface) 311r of the first enclosure 311.

[0303] The first enclosure 311 may include an inner surface and an outer surface 311r. The inner surface of the first enclosure 311 may face the vibration member 331. The outer surface 311r of the first enclosure 311 may be a surface opposite to the inner surface of the first enclosure 311. For example, the protrusion 315 may protrude from the rear surface (or outer surface) 311r of the first enclosure 311. For example, the protrusion 315 is substantially the same as that described with reference to FIGS. 20 and 21, and therefore the same reference numerals are used therefor, and duplicated descriptions therefor may be omitted or simplified.

[0304] An acoustic device 30 according to another embodiment of the present disclosure may include a coupling portion 500 that is coupled to the vehicle interior material 130 .

[0305] The coupling part 500 may be connected or coupled to the protrusion 315. Thus, the coupling part 500 and the protrusion 315 may be integrally (or one-piece) configured. For example, the coupling part 500 and the protrusion 315 may be configured by double injection using different materials, but the embodiment of the present specification is not limited thereto. According to one embodiment of the present specification, the coupling part 500 and the protrusion 315 may be configured as one part, thereby achieving the effect of uni-materialization. The description of the coupling part 500 is substantially the same as that described with reference to FIGS. 14 and 15, and therefore the same reference numerals are used therefor, and the repeated description thereof may be omitted or simplified.

[0306] The coupling portion 500 may include a hollow portion 501. The hollow portion 501 may be coupled or connected to the protrusion 315. The protrusion 315 may surround the opening 310o of the enclosure 310. For example, the protrusion 315 may surround the opening 310o of the first enclosure 311. The protrusion 315 may include an opening hole (or hollow hole) 315o that corresponds (connects) with the opening 310o of the first enclosure 311. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 through the opening hole 315o and the opening 310o of the protrusion 315. For example, the hollow portion 501 may be connected to the internal space 313 of the first enclosure 311 through the opening hole 315o and the opening 310o of the protrusion 315. For example, the hollow portion 501 may be coupled to the interior space 313 of the enclosure 310 through the opening 310o of the enclosure 310. For example, the coupling portion 500 may be configured to be coupled to the enclosure 310 through the first hole 137 of the vehicle interior material 130, the opening hole 315o of the protrusion 315, and the opening 310o of the enclosure 310. The first hole 137 of the vehicle interior material 130 may be coupled to the opening 310o.

[0307] According to one embodiment of the present disclosure, coupling portion 500 may include a hollow member 502 and a latch member 503 .

[0308] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted (or housed) in the protrusion 315. The hollow member 502 may be inserted (or housed) in the open hole 315o of the protrusion 315. The hollow member 502 may be inserted (or housed) in the open hole 315o of the protrusion 315 and connected or coupled to the opening 310o of the enclosure 310 or the first enclosure 311.

[0309] 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 to which the enclosure 310 is attached. For example, the latch member 503 may be configured to be coupled to the vehicle interior material 130 to which the first enclosure 311 is attached. For example, the latch member 503 may be configured to be coupled to the second surface (or interior surface or back surface) 130s of the vehicle interior material 130 through the opening hole 315o of the protrusion 315.

[0310] The latch member 503 according to an embodiment of the present specification may be made of a flexible material, but the embodiment of the present specification is not limited thereto. For example, the latch member 503 may be made of rubber, but the embodiment of the present specification is not limited thereto.

[0311] According to one embodiment of the present specification, the coupling portion 500 and the protrusion 315 may be connected or coupled to the first hole 137 (arrow direction) of the vehicle interior material 130 through the hollow portion 501. For example, since the latch member 503 is made of a flexible material, 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 by moving (or folding and unfolding) the latch member 503 (arrow direction).

[0312] According to one embodiment of the present specification, the acoustic device 30 may be connected or coupled to the vehicle interior material 130 by the coupling portion 500. According to one embodiment of the present specification, the protrusion 315 of the enclosure 310 and the coupling portion 500 may be integrally configured, which may simplify the coupling or coupling process between the vehicle interior material 130 and the acoustic device 30. According to one embodiment of the present specification, the protrusion 315 and the coupling portion 500 may be configured as one part, which may provide the effect of a uni-material structure.

[0313] An acoustic device 30 according to another embodiment of the present specification may further include one or more of the connecting member 350 and the soft member 360 described with reference to Fig. 16 or 17. 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 protrusion 315 of the enclosure 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.

[0314] Fig. 24 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 25 is an exploded perspective view of the acoustic device shown in Fig. 24 according to another embodiment of the present specification. Figs. 24 and 25 show an acoustic device described with reference to Figs. 14 and 16 to which a connecting member is further added. In the description of the acoustic device 30 described with reference to Figs. 14 and 15, the remaining description except for the description of the connecting member may be included in the description of the acoustic device 30 shown in Figs. 24 and 25, so the same reference numbers are used for the same components and redundant description thereof will be omitted.

[0315] 24 and 25, the acoustic device 30 according to another embodiment of the present specification may further include a connecting member 380. The connecting member 380 may be located or configured between the vehicle interior material 130 and the sound generating module 330. For example, the connecting member 380 may be configured in the enclosure 310. The connecting member 380 may be configured between the first enclosure 311 of the enclosure 310 and the vehicle interior material 130. For example, the first enclosure 311 may include an inner surface 311i and an outer surface. The inner surface 311i of the first enclosure 311 may face the vibration member 331. The outer surface of the first enclosure 311 may be the surface opposite to the inner surface 311i. For example, the connecting member 380 may be connected to the outer surface of the enclosure 310 or the first enclosure 311. The connecting member 380 may be a coupling member, an intermediate member, a buffer member, or a pad member, but the embodiment of the present specification is not limited thereto.

[0316] The connecting member 380 may be made of a material different from the first connecting member 321. For example, the connecting member 380 may be made of a material having an adhesive strength different from that of the first connecting member 321. Because the connecting member 380 is made of a material having an adhesive strength different from that of the first connecting member 321, in a process of separating or detaching (or reworking) the audio device 30 attached to the vehicle interior material 130, the connecting member 380 may be easily separated or detached (or reworked) from the vehicle interior material 130. This may facilitate a process of attaching or mounting the audio device 30 to the vehicle interior material 130, or a process of separating or detaching the audio device 30 from the vehicle interior material 130.

[0317] The connecting member 380 may be coupled (or attached) to the rear surface of the enclosure 310 and may be in contact (or surface contact) with the first surface 130s1 of the vehicle interior material 130, but the embodiments of the present specification are not limited thereto. For example, if the connecting member 380 is coupled (or attached) to the rear surface of the enclosure 310 and simply in contact (or surface contact) with the first surface 130s1 of the vehicle interior material 130, in a process (or rework) of separating or detaching the acoustic device 30 from the vehicle interior material 130, the process of separating and detaching (or reworking) the connecting member 380 from the vehicle interior material 130 may be easy without damaging the acoustic device 30 or the vehicle interior material 130.

[0318] According to an embodiment of the present specification, the connecting member 380 may be formed of 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 cushion member, a single-sided cushion pad, or a single-sided cushion tape, but the embodiment of the present specification is not limited thereto. For example, the connecting member 380 may be rubber, but the embodiment of the present specification is not limited thereto. For example, the rubber may be a dual synthetic rubber (or ethylene propylene diene M class rubber), an ethylene propylene rubber, or a urethane rubber, but the embodiment of the present specification is not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiment of the present specification is not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiment of the present specification is not limited thereto. For example, the tensile strength of EPDM is 50 kg / cm 2 ~200kg / cm 2 For example, the connecting member 380 may be made of highly elastic rubber, but the embodiment of the present specification is not limited thereto.

[0319] According to one embodiment of the present specification, since the connecting member 380 is made of rubber or the like, when vibrations of the enclosure 310 or the first enclosure 311 are transmitted to the vehicle interior material 130, loss of vibrations can be prevented or minimized, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0320] According to an embodiment of the present disclosure, the connecting member 380 may be made of a different material than the adhesive layer 1315 (see FIG. 5 ) configured on the sound-generating module 330. The connecting member 380 may be made of a different material than the coupling member 320 of the acoustic device 30.

[0321] According to an embodiment of the present specification, the connecting member 380 may further include a hole 380o (or a first hole or an opening hole). For example, the connecting member 380 may further include a hole 380o connected to the opening 310o in the enclosure 310 or the first enclosure 311.

[0322] The hole 380o may be arranged to correspond to (or overlap) the opening 310o. The hole 380o may have the same shape as the opening 310o, but the embodiment of the present specification is not limited thereto. For example, the hole 380o may have the same shape as the opening 310o and may have a size larger than the size of the opening 310o. As a result, sound caused by vibration of the sound generating module 330 may be output to the interior space (IS) of the vehicle through the opening 310o and the hole 380o. For example, the hole 380o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiment of the present specification is not limited thereto.

[0323] According to an embodiment of the present specification, 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 enclosure 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 enclosure 311. The hole 380o may be connected to the opening 310o of the enclosure 310. For example, the hole 380o may be connected to the opening 310o of the first enclosure 311. The hole 380o may be disposed corresponding to the opening 310o. The hole 380o of the connecting member 380 may have the same size as the opening 310o and the hole 137, or may have a size larger than the opening 310o and the hole 137. As a result, sound generated by vibration of the sound generating module 330 can be output to the interior space of the vehicle through the opening 310o, the hole 380o, and the hole 137.

[0324] The thickness (T1) of the connecting member 380 may be different from the thickness of at least one of the first connecting member 321 and the second connecting 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 connecting member 321 and the second connecting member 322. The thickness (T1) of the connecting member 380 may be 0.5 mm or more, but the embodiment of the present specification is not limited thereto. For example, the thickness (T1) of the connecting member 380 may be 0.5 mm to 3 mm, but the embodiment of the present specification is not limited thereto.

[0325] According to other embodiments of the present specification, the connecting member 380 has a compressive force (or contractile force) and an elastic restoring force, and can be contracted or compressed by the connection between the coupling portion 500 and the first enclosure 311. The length (or thickness) of the connecting member 380 may be the same as or shorter than the length (or thickness) of the vehicle interior material 130. For example, the length (or thickness) of the connecting member 380 may be the same as or shorter than the length (or thickness) of the first enclosure 311.

[0326] The connecting member 380 may have an initial thickness (T1') as shown in FIG. 25 before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T1) shown in FIG. 24 by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling part 500 and the enclosure 310. For example, when the acoustic device 30 is coupled to the vehicle interior material 130 by the coupling part 500, or when assembly and / or reworking is completed, the thickness of the connecting member 380 may be compressed from the initial thickness (T1') to the compressed thickness (T1), so that the vibration of the enclosure 310 may be efficiently transmitted to the vehicle interior material 130. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling part 500, the connecting member 380 may be restored to the initial thickness (T1') from the deformed thickness (T1) by the elastic restoring force.

[0327] The coupling unit 500 may be connected or coupled to the acoustic device 30 through the second hole 137 of the vehicle interior material 130, the hole 380o of the connecting member 380, and the opening 310o of the enclosure 310 (in the direction of the arrow). For example, the coupling unit 500 may be connected or coupled to the opening 310o of the first enclosure 311 through the second hole 137 of the vehicle interior material 130 and the hole 380o of the connecting member 380 in the interior space of the vehicle. According to one embodiment of the present specification, the coupling unit 500 may be connected or coupled to the acoustic device 30 or the enclosure 310 through the hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the coupling portion 500 may be accommodated or inserted into the hole 380o of the connecting member 380 and the opening 310o of the first enclosure 311 through the hole 137 of the vehicle interior material 130 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or accommodated) into the opening 310o of the first enclosure 311 and coupled or connected to the home portion 311g of the first enclosure 311 by a hook coupling manner.

[0328] FIG. 26 is a diagram showing an audio device according to another embodiment of the present specification.

[0329] 26, a vehicle interior material 130 according to another embodiment of the present specification may include one or more curved portions (or bent portions) 136. The 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 an intermediary or intermediate member.

[0330] The acoustic device 30 or the enclosure 310 may be coupled or connected to one or more curved portions 136 of the vehicle interior material 130 by a coupling member 380. For example, the coupling member 380 may be disposed between the enclosure 310 and the one or more curved portions 136 of the vehicle interior material 130. For example, the coupling member 380 may be disposed between the first enclosure 311 and the one or more curved portions 136 of the vehicle interior material 130. For example, the first enclosure 311 may be coupled or connected to one or more curved portions 136 of the vehicle interior material 130 by the coupling member 380.

[0331] The thickness (T1) of the connecting member 380 may be different from the thickness of at least one of the first connecting member 321 and the second connecting 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 connecting member 321 and the second connecting member 322. The thickness (T1) of the connecting member 380 may be 0.5 mm or more, but the embodiment of the present specification is not limited thereto. For example, the thickness (T1) of the connecting member 380 may be 0.5 mm to 3 mm, but the embodiment of the present specification is not limited thereto. For example, the connecting member 380 may have a thickness (T1) compressed by the connecting force between the connecting portion 500 and the first enclosure 311 from the initial thickness (T1') shown in FIG. 25. Thereby, the connecting member 380 may be in surface contact with the vehicle interior material 130 including one or more curved surface portions 136 by the connecting force between the connecting portion 500 and the first enclosure 311.

[0332] According to an embodiment of the present specification, sound generated by the vibration of the sound generating module 330 may be output to the vehicle interior space through the opening 310o, the hole 380o, and the second hole 137. Also, according to an embodiment of the present specification, the vibration of the enclosure 310 or the first enclosure 311 generated by the sound (or sound pressure or sound waves) generated by the vibration of the sound generating module 330 is efficiently transmitted to the vehicle interior material 130 having one or more curved surface portions 136 through the connecting member 380 without loss, and the vehicle interior material 130 having one or more curved surface portions 136 vibrates due to the vibration of the enclosure 310 or the first enclosure 311 transmitted through the connecting member 380 to output sound to the vehicle interior space, thereby further improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency range.

[0333] The sound device 30 according to another embodiment of the present specification may include an enclosure 310 and a connecting member 380. This may further improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range, and the connecting member 380 made of a rubber material may facilitate the attachment or detachment process of the sound generating module 330 attached to the vehicle interior material 130.

[0334] Fig. 27 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 28 is an internal view of an acoustic device according to another embodiment of the present specification. Figs. 27 and 28 show an acoustic device 30 described with reference to Figs. 1 to 26, to which at least one hole has been further configured. In the description of the acoustic device 30 described with reference to Figs. 1 to 26, the remaining description except for the description of the at least one hole may be included in the description of the acoustic device 30 shown in Figs. 27 and 28, so the same reference numbers are assigned to the same components and duplicated descriptions thereof will be omitted.

[0335] 27 and 28, an acoustic device 30 according to another embodiment of the present specification may further include one or more holes 331o.

[0336] One or more holes 331o may be configured in the vibration member 331. The one or more holes 331o may be formed to penetrate the vibration member 331. For example, the one or more holes 331o may be configured to penetrate the vibration member 331 along a thickness direction (Z) of the vibration member 331. For example, the one or more holes 331o may be formed to penetrate vertically along the thickness direction (Z) of the vibration member 331.

[0337] The sound generating module 330 according to an embodiment of the present disclosure may include a vibrating member 331 including one or more holes 331 o and vibration devices 333 and 335 configured on the vibrating member 331 .

[0338] The one or more holes 331o may be configured to adjust the flow of air in the internal space 313 of the enclosure 310. For example, the one or more holes 331o may adjust the flow of air in the internal space 313 of the enclosure 310, which is spatially separated by the vibration member 331. For example, the one or more holes 331o may be configured to adjust the flow of air between the first space 313a and the second space 313b, which are spatially separated by the vibration member 331, in the internal space 313 of the enclosure 310. For example, the one or more holes 331o may be a first hole, a vent hole, a ventilation hole, a duct hole, a first connection hole, a first communication hole, or a first space connection part, but the embodiments of the present specification are not limited thereto.

[0339] According to an embodiment of the present disclosure, the one or more holes 331o may be configured in a circular, elliptical, or polygonal shape such as a square, but the embodiment of the present disclosure is not limited thereto.

[0340] The one or more holes 331o may be configured to reduce the air pressure in the internal space 313 of the enclosure 310. For example, the one or more holes 331o may be configured to connect the first space 313a and the second space 313b, which are spatially separated by the vibrating member 331, in the internal space 313 of the enclosure 310. For example, the first space 313a and the second space 313b of the internal space 313 inside the enclosure 310 may be connected (or communicated) with each other through the one or more holes 331o. For example, the one or more holes 331o may be configured to reduce the air pressure in the first space 313a of the first enclosure 311, or the first space 313a provided between the vibrating member 331 and the first enclosure 311. This may extend the band (reproduction band) of the low-frequency band, thereby improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency band. Furthermore, the one or more holes 331o in the vibrating member 331 allow the sound generating module 330 to vibrate more stably, so that the acoustic characteristics and / or sound pressure characteristics can be further improved.

[0341] According to one embodiment of the present specification, the internal space 313 may be between a first surface of the sound generating module 330 and the first enclosure 311, and may be connected to the opening 310o. The internal spaces 313 may be connected (or communicated) with each other via one or more holes 331o. The enclosure 311 may include a second space 313b between a second surface opposite to the first surface of the sound generating module 330 and the second enclosure 312. The internal space 313 and the second space 313b may be connected (or communicated) with each other via one or more holes 331o.

[0342] According to an embodiment of the present specification, the one or more holes 331o may be arranged adjacent to the vibration devices 333 and 335. For example, the one or more holes 331o may be arranged around the vibration devices 333 and 335. For example, the one or more holes 331o may be arranged adjacent to the side of the vibration devices 333 and 335. For example, the distance between the one or more holes 331o and the vibration devices 333 and 335 may be shorter than the distance between the one or more holes 331o and the side wall (or side) of the enclosure 310. For example, when the one or more holes 331o are located away from the vibration devices 333 and 335, the acoustic characteristics and / or sound pressure characteristics of the low frequency band may be reduced.

[0343] According to an embodiment of the present specification, one or more holes 331o may be configured in the vibration member 331 adjacent to the vibration devices 333, 335 with the vibration devices 333, 335 in between. For example, the vibration member 331 may include a first peripheral region adjacent to a first side of the vibration devices 333, 335 and a second peripheral region adjacent to a second side opposite to the first side of the vibration devices 333, 335. For example, based on the first direction (X), the vibration member 331 may include a first peripheral region, a vibration region, and a second peripheral region. For example, in the vibration member 331, each of the first and second peripheral regions may be a hole region or a region where the vibration devices 333, 335 are not arranged, and the vibration region may be a region where the vibration devices 333, 335 are arranged. For example, one or more holes 331o may be configured in a first peripheral region and a second peripheral region of the vibration member 331, respectively, to have a symmetrical structure (or a bilaterally symmetrical structure) or an asymmetrical structure (or a bilaterally asymmetrical structure) with respect to the vibration devices 333, 335.

[0344] According to one embodiment of the present specification, the vibration devices 333, 335 may 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 side of the vibration devices 333, 335 may be expressed as a ratio to the length of the short side of the vibration devices 333, 335. According to one embodiment of the present specification, the distance between the one or more holes 331o and the vibration devices 333, 335 may be 60% or less of the length of the short side of the vibration devices 333, 335.

[0345] The one or more holes 331o may be disposed closer to the vibration devices 333, 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, the one or more holes 331o may be disposed closer to the vibration devices 333, 335 than the first coupling member 321 and the second coupling member 322. This may improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range.

[0346] According to an embodiment of the present specification, one or more holes 331o may not overlap with the opening 310o. For example, one or more holes 331o may be disposed apart from the opening 310o. As a result, sound generated in the second space 313b by vibration (or driving) of the vibration devices 333 and 335 may be output to the first space 313a through one or more holes 331o, so that the acoustic characteristics and / or sound pressure characteristics of the low frequency range may be improved.

[0347] According to an embodiment of the present disclosure, the one or more holes 331o may be configured in a circular, elliptical, or polygonal shape such as a square, but the embodiment of the present disclosure is not limited thereto.

[0348] According to one embodiment of the present specification, sound generated in the rear of the vibrating member 331 or in the second space 313b of the enclosure 310 by vibration (or driving) of the vibrating devices 333, 335 is output to the first space 313a through at least one hole 331o, and output (or radiated) through the opening 310o of the first enclosure 311 and the hollow portion 501 of the coupling portion 500, so that the acoustic characteristics and / or sound pressure characteristics in the low-frequency range can be further improved.

[0349] Fig. 29 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 29 shows an acoustic device 30 described with reference to Figs. 1 to 28 with a modified enclosure. In the following description, the enclosure will be described in detail, and the remaining configuration is substantially the same as that described with reference to Figs. 1 to 28, so the same reference numerals will be used therefor, and duplicated descriptions thereof may be omitted or simplified.

[0350] 29, in an acoustic device 30 according to another embodiment of the present specification, the enclosure 310 may include a first enclosure 311. For example, the enclosure 310 may be configured with only the first enclosure 311, with the second enclosure 312 removed (or omitted) from the enclosure 310 described with reference to FIGS.

[0351] The enclosure 310 or the first enclosure 311 may be connected to the acoustic device 30 across the internal space 313. The enclosure 310 or the first enclosure 311 may be connected to a rear edge portion of the vibration member 331 across the internal space 313.

[0352] According to other embodiments herein, the vibration member 331 may be configured to cover the interior space 313 of the first enclosure 311. For example, the vibration member 331 may be configured to cover a portion of the interior space 313 of the first enclosure 311. The vibration member 331 may be configured to cover the first space 313a of the first enclosure 311. For example, the vibration member 331 may be configured to cover a portion of the first space 313a of the first enclosure 311.

[0353] When the enclosure 310 is composed of the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics of the acoustic device 30 can be further improved than when the enclosure 310 is composed of the first enclosure 311 and the second enclosure 312. For example, when the enclosure 310 is composed of the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics of the mid-low frequency band, for example, the frequency band of 2 kHz or less, can be further improved, and the sound reproduction band can be further expanded.

[0354] According to another embodiment of the present specification, the acoustic device 30 is configured to include a first enclosure 311 and a connecting member 380, thereby further improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands, expanding the sound reproduction band, and facilitating the attachment or detachment process of the sound generating module 330 attached to the vehicle interior material 130.

[0355] Fig. 30 is a diagram showing an audio device according to another embodiment of the present specification. Fig. 30 shows an audio device 30 described with reference to Fig. 29, further comprising one or more holes. In the following description, one hole will be described in detail, and the remaining configuration is substantially the same as that described with reference to Figs. 1 to 29, so the same reference numerals will be used therefor, and duplicated descriptions thereof may be omitted or simplified.

[0356] 30, an acoustic device 30 according to another embodiment of the present specification may further include one or more holes 331o. The one or more holes 331o may be configured in the vibration member 331. The description of the one or more holes 331o is substantially the same as that described with reference to FIGS. 27 and 28, so the same reference numbers are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0357] According to another embodiment of the present specification, the acoustic device 30 may include the first enclosure 311 and at least one or more holes 331o, or may include the first enclosure 311. When the acoustic device 30 is configured to include the first enclosure 311 and one or more holes 331o, the acoustic characteristics and / or sound pressure characteristics of the low frequency band and the mid frequency band may be further improved, and the sound reproduction band may be further expanded. When the acoustic device 30 is configured to include the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics of the mid-low frequency band may be further improved, and the sound reproduction band may be further expanded.

[0358] According to another embodiment of the present specification, the acoustic device 30 includes at least one of the first enclosure 311, one or more holes 331o, and a connecting member 380, so that the acoustic characteristics and / or sound pressure characteristics of the low-frequency band and the mid-frequency band can be further improved, the sound reproduction band can be further expanded, and the attachment or detachment process of the sound generating module 330 attached to the vehicle interior material 130 can be facilitated.

[0359] Fig. 31 is a diagram showing an audio device according to another embodiment of the present specification. Fig. 31 shows an audio device 30 described with reference to Fig. 29, further comprising a protective member 410. In the following description, the protective member 410 will be described in detail, and the remaining configuration is substantially the same as that described with reference to Fig. 29, so the same reference numerals are used thereto, and duplicated descriptions thereof may be omitted or simplified.

[0360] Referring to FIG. 31 , an acoustic device 30 according to an embodiment of the present disclosure may further include a protective member 410 .

[0361] The protective member 410 according to an embodiment of the present specification may be disposed on 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 on the second vibrating device 335. For example, the protective member 410 may cover the second vibrating device 335.

[0362] According to an embodiment of the present specification, the protective member 410 may be made of rubber or sponge, but the embodiment of the present specification is not limited thereto. For example, the rubber may be a dual synthetic rubber (or ethylene propylene diene M class rubber), an ethylene propylene rubber, or a urethane rubber, but the embodiment of the present specification is not limited thereto. For example, the protective member 410 may include a rubber material or may be made of a dual synthetic rubber (or ethylene propylene diene M class rubber), an ethylene propylene rubber, or a urethane rubber. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiment of the present specification is not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiment of the present specification is not limited thereto. For example, the tensile strength of EPDM is 50 kg / cm 2 ~200kg / cm 2For example, the minimum elongation rate of EPDM may be 200%, but the examples of the present specification are not limited thereto. For example, the use temperature of EPDM may be -30°C to 110°C, but the examples of the present specification are not limited thereto. For example, the protective member 410 may be made of high elasticity rubber or low elasticity rubber, but the examples of the present specification are not limited thereto. For example, the thickness of the protective member 410 may be 0.5 mm to 2 mm, but the examples of the present specification are not limited thereto.

[0363] According to an embodiment of the present specification, the sound generating module 330 is provided with a protective member 410, which can further complement the acoustic characteristics and / or sound pressure characteristics of the low frequency range and protect the acoustic device 30. For example, the protective member 410 can be a sealing member, a buffer member, or a shock absorbing member, but the embodiment of the present specification is not limited thereto.

[0364] According to an embodiment of the present specification, the protective member 410 may be made of a material different from that of the first connecting member 321. For example, the protective member 410 may be made of a material having a different adhesive strength from that of the first connecting member 321. The protective member 410 is made of a material having an adhesive strength different from that of at least one of the first connecting member 321 and the second connecting member 322, thereby being able to protect the acoustic device 30. For example, the protective member 410 is made of rubber such as EPDM, thereby being able to enhance the sound pressure in the low frequency range and to protect the acoustic device 30.

[0365] According to an embodiment of the present disclosure, the protective member 410 may be coupled or connected to the vibration member 331 and / or the vibration device. The protective member 410 may be coupled or connected to the vibration member 331 and / or the second vibration device 335. For example, the protective member 410 may be configured to protect or secure the vibration member 331 and / or the vibration device 330. The protective member 410 may be configured to secure the vibration member 331 and / or the second vibration device 335 so as to protect the vibration member 331 and / or the second vibration device 335.

[0366] The vibration member 331 may include a first side and a second side different (or opposite) from the first side. For example, the enclosure 310 may be coupled or connected to the first side of the vibration member 331. The protective member 410 may be in contact with the second vibration device 335 and the second side of the vibration member 331. For example, the protective member 410 may be configured to cover the second vibration device 335 and the second side of the vibration member 331.

[0367] The protective member 410 may have the same size as the vibration member 331, but the embodiment of the present specification is not limited thereto. For example, the protective member 410 may have a size larger than the vibration devices 333 and 335 and smaller than the vibration member 331, but the embodiment of the present specification is not limited thereto.

[0368] According to other embodiments of the present specification, the acoustic device 30 may include at least one of the first enclosure 311, the connecting member 380, and the protective member 410, thereby further improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency band and the mid-frequency band, expanding the sound reproduction band, and providing protection from external impacts.

[0369] Fig. 32 is a diagram showing an audio device according to another embodiment of the present specification. Fig. 32 shows an audio device 30 described with reference to Fig. 30, further comprising a protective member 410. In the following description, the protective member 410 will be described in detail, and the remaining configuration is substantially the same as that described with reference to Fig. 30, so the same reference numerals are used thereto, and duplicated descriptions thereof may be omitted or simplified.

[0370] 32, a protective member 410 according to an embodiment of the present specification may be disposed on 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 on the second vibration device 335. For example, the protective member 410 is the same or substantially the same as the protective member 400 described with reference to FIG. 31, and therefore a duplicated description thereof will be omitted.

[0371] The acoustic device 30 according to another embodiment of the present disclosure may further include at least one hole 410h (or a connecting hole) in the protective member 410.

[0372] At least one hole 410h of the protective member 410 may be configured to correspond to one or more holes 331o in the vibration member 331. For example, at least one hole 410h of the protective member 410 may be connected to one or more holes 331o in the vibration member 331. For example, the hole 410h may be a second hole, a vent hole, a ventilation hole, a duct hole, a second connection hole, a second communication hole, or a second space connection part, but the embodiments of the present specification are not limited thereto.

[0373] According to another embodiment of the present specification, when the acoustic device 30 includes at least one or more of the first enclosure 311, the one or more holes 331o, and the at least one hole 410h of the protective member 410, the acoustic characteristics and / or sound pressure characteristics of the low-frequency band and the mid-frequency band may be further improved, and the sound reproduction band may be further expanded.

[0374] The inventors of the present specification have recognized that acoustic characteristics differ depending on the structure of the coupling part 500. Therefore, the inventors of the present specification have conducted various studies and experiments on the structure of the coupling part 500. Through various studies and experiments, the inventors have invented an acoustic device including the coupling part 500 and a transportation device including the same, which can improve acoustic characteristics and / or sound pressure characteristics. This will be described below.

[0375] Fig. 33 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 34 is a diagram showing a coupling section according to another embodiment of the present specification. Figs. 33 and 34 show an acoustic device 30 described with reference to Figs. 14 to 32 with a modified coupling section 500. In the following description, the coupling section 500 will be described in detail, and the remaining configuration is substantially the same as that described with reference to Figs. 14 to 32, so the same reference numbers are used therefor, and duplicated descriptions thereof may be omitted or simplified.

[0376] 33 and 34, in an acoustic device 30 according to another embodiment of the present specification, the description of the coupling portion 500 is substantially the same as that described with reference to FIGS. 14 to 32, and therefore the same reference numbers are used therefor, and duplicate descriptions thereof may be omitted or simplified.

[0377] The coupling portion 500 according to another embodiment of the present disclosure may further include a chamfered portion 503a.

[0378] The coupling portion 500 may include a hollow portion 501 that is coupled to the interior space 313 of the enclosure 310 and has a chamfered portion 503a. The chamfered portion 503a may be configured in the hollow portion 501. For example, the hollow portion 501 may be coupled to the interior space 313 of the enclosure 310 through an opening 310o of the enclosure 310.

[0379] The vehicle interior material 130 may include a first surface and a second surface different (or opposite) from the first surface. The first surface may be a surface facing the enclosure 310. The vehicle interior material 130 may include a hole 137 configured on the first surface and the second surface. For example, the hole 137 of the vehicle interior material 130 may be configured to penetrate the first surface and the second surface. For example, the latch member 503 may be configured to penetrate the hole (or through hole) 137 and be coupled to the second surface (or interior surface or back 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 the second surface of the vehicle interior material 130.

[0380] The chamfered portion 503a according to other embodiments of the present specification may include a non-right-angle shape. For example, the chamfered portion 503a may include one or more of a curved shape (or a round shape) and an inclined surface. For example, the chamfered portion 503a may have a curvature. The curvature of the chamfered portion 503a may change the acoustic characteristics and / or sound pressure characteristics. For example, when the chamfered portion 503a has a non-right-angle shape, the peaks and / or dips in the low to high frequency range may be improved, and the balance characteristics or flatness characteristics of the sound pressure may be improved, compared to when the chamfered portion 503a has a right-angle shape. Furthermore, the larger the curvature of the chamfered portion 503a, the more the flatness characteristics and / or sound pressure characteristics in the high frequency range may be improved. Therefore, according to the embodiments of the present specification, by configuring the coupling portion 500 to have a round shape or an inclined surface, the acoustic characteristics and / or sound pressure characteristics in a frequency band including the sound of the low frequency band can be improved, and the peaks and / or dips in the high frequency band can be improved, so that the balance characteristics of the sound pressure or the flatness characteristics of the sound pressure can be improved.

[0381] 34, the coupling portion 500 may include a first side (or lower surface) 500a and a second side (or upper surface) 500b. The second side 500b may be the opposite of the first side 500a. For example, a chamfer 503a may be configured between the second side 500b and the hollow portion 501. For example, the chamfer 503a may be configured in a non-right-angled shape in a region (or corner region) between the inner surface (or inner surface) of the hollow member 502 and the upper surface of the latch member 503. For example, the hollow portion 501 may be coupled to the interior space 313 through the opening 310o of the enclosure 310.

[0382] According to other embodiments of the present specification, the hollow portion 501 may be in a straight line shape, but the embodiments of the present specification are not limited thereto. The hollow portion 501 may be in a straight line shape parallel to the second direction (Y) or the short side direction of the enclosure 310, but the embodiments of the present specification are not limited thereto. For example, the hollow portion 501 may include a slit shape having a long axis and a short axis, but the embodiments of the present specification are not limited thereto. For example, the long axis of the hollow portion 501 may be parallel to the second direction (Y) or the short side direction of the enclosure 310, but the embodiments of the present specification 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 enclosure 310, but the embodiments of the present specification are not limited thereto. For example, the hollow portion 501 may be in a star (*) shape or a cross (+) shape as described with reference to FIG. 18 and FIG. 19, but the embodiments of the present specification are not limited thereto. The shape of the chamfered portion 503 a can be applied in the same manner to various shapes of the hollow portion 501 .

[0383] According to other embodiments of the present specification, 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 peripheral surface) of the hollow portion 501 in a direction parallel to the vehicle interior material 130 (or a 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 a 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 enclosure 310. For example, the width (W) of the latch member 503 may be the same as the length of the short axis of the hollow portion 501. The width (W) of the latch member 503 or the length of the minor axis of the hollow portion 501 may be 1 mm or more, but the embodiments of the present specification are not limited thereto. For example, the width (W) of the latch member 503 or the length of the minor axis of the hollow portion 501 may be 1 mm to 5 mm or less, but the embodiments of the present specification are not limited thereto.

[0384] According to an embodiment of the present specification, the wider the width (W) of the latch member 503, the more improved the sound pressure characteristics may be, and the more reduced or minimized the inflow of dust or foreign matter from the outside may be. According to an embodiment of the present specification, the width (W) of the latch member 503 may be 1 mm or more, but the embodiment of the present specification is not limited thereto. For example, the width (W) of the latch member 503 may be 1 mm to 5 mm, but the embodiment of the present specification is not limited thereto.

[0385] According to the embodiment of the present specification, since the width (W) of the latch member 503 is configured to be 1 mm or more, the acoustic characteristics and / or sound pressure characteristics in a frequency band including the sound of the low frequency band may be improved, and since the peaks and / or dips in the high frequency band may be improved, the balance characteristics or flatness characteristics of the sound pressure may be improved. According to the embodiment of the present specification, since the width (W) of the latch member 503 is configured to be 1 mm or more, the inflow of dust or foreign matter from the outside may be reduced or minimized.

[0386] According to another embodiment of the present specification, 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 allows the audio device 30 to be secured to the vehicle interior material 130. For example, the length (L) of the coupling portion 500 may be smaller than the total thickness of the vehicle interior material 130, the connecting member 380, and the enclosure 310. Based on the thickness direction (Z) of the vehicle interior material 130, the length (L) of the coupling portion 500 may correspond to the length of the hollow portion 501. 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 that contacts the vehicle interior material 130 and the lower surface of the hook member 504 that contacts the enclosure 310. The length (L) of the coupling portion 500 may be 10 mm or more, but the embodiment of the present specification is 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 herein are not limited thereto.

[0387] According to another embodiment of the present specification, the acoustic device 30 may be provided with improved acoustic characteristics and / or sound pressure characteristics by being 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. For example, the shorter the length (L) of the coupling portion 500, the better the sound pressure characteristics may be. According to an embodiment of the present specification, the length (L) of the coupling portion 500 may be 10 mm or more, and the embodiment of the present specification is not limited thereto. For example, the length (L) of the coupling portion 500 may be 10 mm or more and less than 19 mm, and the embodiment of the present specification is not limited thereto. For example, if the length (L) of the coupling portion 500 is shorter than 10 mm, the dip and / or peak of the sound may be improved, but there may be a problem in mounting the acoustic device on the roof trim of the vehicle. According to the embodiments of the present specification, since the length (L) of the coupling portion 500 is configured to be equal to or greater than 10 mm and less than 19 mm, the acoustic characteristics and / or sound pressure characteristics in a frequency range including the sound of the low frequency range can be improved, and since the peaks and / or dips in the high frequency range can be improved, the balance characteristics of the sound pressure or the flatness characteristics of the sound pressure can be improved.

[0388] The coupling unit 500 described with reference to Figs. 33 and 34 may be applied to the acoustic device 30 described with reference to Figs. 26 to 32. For example, the coupling unit 500 of the acoustic device 30 described with reference to Figs. 26 to 32 may be changed to the coupling unit 500 described with reference to Figs. 33 and 34. For example, the description of the remaining configuration of the acoustic device 30 in Figs. 26 to 32, excluding the coupling unit 500, may be included in the description of the acoustic device 30 shown in Figs. 33 and 34, and therefore the overlapping description will be omitted. For example, an acoustic device according to another embodiment of the present specification includes at least one or more of the first enclosure 311, one or more holes 331o, and at least one hole 410h of the protective member 410, and is configured to include one of the shape of the coupling unit 500, the width (W) of the coupling unit 500, and the length (L) of the coupling unit 500, so that the acoustic characteristics and / or sound pressure characteristics of the bass band and the mid-range band may be further improved and the sound reproduction band may be further expanded.

[0389] Fig. 35 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 35 shows another embodiment of the connecting member 380 described with reference to Fig. 24. Therefore, in the following description, overlapping descriptions of the remaining configuration except for the connecting member 380 can be omitted or simplified.

[0390] The inventors of the present specification have recognized that when configured with the connecting member 380 of FIG. 24, the edge portion of the connecting member 380 is not connected to or in contact with the vehicle interior material 130, resulting in a decrease in acoustic characteristics and / or sound pressure characteristics. For example, they recognized that a loss of sound (or vibration transmission) occurs due to the edge portion of the connecting member 380 that is not connected to or in contact with the vehicle interior material 130. As a result, they recognized that the acoustic characteristics and / or sound pressure characteristics in the low-frequency range are decreased. Therefore, the inventors of the present specification have conducted various research and experiments. Through various research and experiments, they have invented an acoustic device that can further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range, and a transportation device including the same. This will be described below.

[0391] Referring to FIG. 35, an acoustic device 30 according to another embodiment of the present disclosure may further include a connecting member 380.

[0392] The connecting member 380 may include a first portion and a second portion. The second portion may be an edge portion of the enclosure 310. The second portion may be a portion (or region) between the interior material 130 and the edge portion of the enclosure 310. The first portion may be a remaining portion of the enclosure 310 excluding the edge portion. For example, the first portion may correspond to a central portion of the enclosure 310 surrounded by a second portion corresponding to the edge portion of the enclosure 310.

[0393] According to an embodiment of the present disclosure, the first portion of the connecting member 380 may include an opening hole 380o connected to the internal space 313 of the enclosure 310. For example, the first portion may include an opening hole 380o connected to the internal space 313 of the first enclosure 311.

[0394] According to one embodiment of the present disclosure, the enclosure 310 or the first enclosure 311 may include one or more regions. For example, the enclosure 310 or the first enclosure 311 may include a first region (A1), a second region (A2), and a third region (A3).

[0395] The first region (A1) may correspond to a central portion of the enclosure 310 or the first enclosure 311. The first region (A1) may be in the central portion of the enclosure 310 or the first enclosure 311. The second region (A2) may correspond to an edge portion surrounding the central portion of the enclosure 310 or the first enclosure 311. The third region (A3) may be between the first region (A1) and the second region (A2). For example, the first portion of the connecting member 380 may be between the first region (A1) and the second region (A2). For example, the second portion of the connecting member 380 may be in the second region (A2).

[0396] According to an embodiment of the present specification, the first and second portions of the connecting member 380 may have different thicknesses. For example, the connecting member 380 may include a first and a second portion having different thicknesses. In the connecting member 380, the thickness (T1) of the first portion may be different from the thickness (T1+T2) of the second portion. For example, in the connecting member 380, the thickness (T1+T2) of the second portion may be thicker than the thickness (T1) of the first portion. For example, the thickness (T1) of the connecting member 380 in the first region (A1) may be different from the thickness (T1+T2) of the connecting member 380 in the second region (A2). At least one of the thicknesses of the connecting member 380 in each of the first region (A1) and the third region (A3) may be different from the thickness (T1+T2) of the connecting member 380 in the second region (A2). For example, the thickness (T1+T2) of the connecting member 380 in the second region (A2) may be greater than the thickness (T1) of the connecting member 380 in the first region (A1).

[0397] According to an embodiment of the present specification, the second portion of the connecting member 380 has a thickness (T1+T2) greater than that of the first portion, so that the edge portion of the connecting member 380 can be connected to or contacted with the vehicle interior material 130 without lifting up. This can prevent the edge portion of the connecting member 380 from lifting up from the vehicle interior material 130, and vibrations within the edge portion of the enclosure 310 can be transmitted to the vehicle interior material 130 without loss of vibration (or vibration transmission) at the edge portion of the enclosure 310. The vibrations at the edge portion of the enclosure 310 increase the vibration area of ​​the vehicle interior material 130, so that the acoustic characteristics of the low-frequency range can be further improved or complemented. Therefore, the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 without loss, so that the sound of the low-frequency range can be further improved. For example, sound generated by vibration of the acoustic device 30 may be transmitted to the vehicle interior material 130 through the opening 310o and the edge portion of the enclosure 310, thereby increasing the efficiency of the vibration transmitted from the enclosure 310 to the vehicle interior material 130 and further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0398] The connecting member 380 according to an embodiment of the present disclosure may include a first connecting member 381 and a second connecting member 382 .

[0399] The first connecting member 381 can be in a first portion and a second portion. The first connecting member 381 can be connected to the enclosure 310. The first connecting member 381 can be connected (or attached) to the first enclosure 311. The first connecting member 381 can be connected (or attached) to the back surface of the first enclosure 311. The first connecting member 381 can be connected (or attached) to the first to third regions (A1, A2, A3) of the enclosure 310. For example, the first connecting member 381 can be connected (or attached) to the entire back surface of the first enclosure 311.

[0400] According to an embodiment of the present disclosure, the first connecting member 381 may include an opening hole 380o located in the first portion and connected to the internal space 313 of the enclosure 310. For example, the first connecting member 381 may include an opening hole 380o located in the first portion and connected to the internal space 313 of the first enclosure 311.

[0401] The second connecting member 382 can be in the second portion. The second connecting member 382 can be connected to a portion of the first connecting member 381. The second connecting member 382 can be on the first connecting member 381 in the second portion. For example, the first portion can 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 can be together in the second portion. For example, the second portion can include both the first connecting member 381 and the second connecting member 382. For example, the first connecting member 381 and the second connecting member 382 can be together in the second region (A2).

[0402] The first and second portions of the connecting member 380 may have different widths (or sizes). The width of the first portion of the connecting member 380 may be smaller than the width of the second portion. For example, the width of the connecting member 380 in the first region (A1) and the third region (A3) may be smaller than the width of the connecting member 380 in the second region (A2). Thus, the connecting member 380 may include first and second portions having different sizes (or widths) and thicknesses.

[0403] The second connecting member 382 may be at the edge of the first connecting member 381. The second connecting member 382 may be configured by being laminated to the first connecting member 381 in the second portion. For example, the second connecting member 382 may be configured by being laminated to the first connecting member 381 in the second region (A2). This allows the thickness (T1+T2) of the second portion of the connecting member 380 to be made thicker than the thickness (T1) of the first portion, so that the edge portion of the enclosure 310 can be connected to (or contact) the vehicle interior material 130 without lifting up. For example, the second connecting member 382 may be a cushion member or a pad member, but the embodiments of the present specification are not limited thereto.

[0404] The first connecting member 381 may be substantially the same as the connecting member 380 described with reference to FIG. 24, and therefore a duplicated description thereof will be omitted.

[0405] The second connecting member 382 may include the same material (or material) as the first connecting member 381, but the embodiments of the present specification are not limited thereto. For example, one of the first connecting member 381 and the second connecting member 382 may be made of a material having a relatively high elasticity (or Young's modulus). One of the first connecting member 381 and the second connecting member 382 may be a high elasticity rubber, etc., but the embodiments of the present specification are not limited thereto. One of the first connecting member 381 and the second connecting member 382 may be made of a material having a relatively high elasticity (or Young's modulus) and a relatively high tensile strength. For example, one of the first connecting member 381 and the second connecting member 382 may include a rubber material or may be made of a dual synthetic rubber (or ethylene propylene diene M class rubber), ethylene propylene rubber, or urethane rubber. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of the present specification are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the examples of this specification are not limited thereto. For example, the tensile strength of EPDM is 50 kg / cm 2 ~200kg / cm 2For example, the minimum elongation of EPDM may be 200%, but the examples herein are not limited thereto. For example, the service temperature of EPDM may be -30°C to 110°C, but the examples herein are not limited thereto.

[0406] According to an embodiment of the present specification, the coupling member 320 may be made of a material different from that of the connecting member 380. For example, at least one of the first connecting member 381 and the second connecting member 382 may be made of a material having a higher elasticity than the coupling member 320.

[0407] According to an embodiment of the present disclosure, the width of the connecting member 380 in the second portion may be greater than the width of the coupling member 320. For example, the width of the connecting member 380 in the second region (A2) may be greater than the width of the coupling member 320.

[0408] According to one embodiment of the present specification, each of the first connecting member 381 and the second connecting member 382 of the connecting member 380 has a compressive force (or contraction force) and an elastic restoring force, and can be contracted or compressed by the connection between the connecting portion 500 and the first enclosure 311. For example, the first connecting member 381 disposed (or interposed) between the first enclosure 311 and the vehicle interior material 130 can have a first thickness (T1) compressed by the pressure force of the first enclosure 311. The second connecting member 382 disposed (or interposed) between the first enclosure 311 and the vehicle interior material 130 can have a second thickness (T2) compressed by the pressure force of the first enclosure 311.

[0409] The first thickness (T1) of the first connecting member 381 may be the same as or different from the second thickness (T2) of the second connecting member 382. The first thickness (T1) of the first connecting member 381 and the second thickness (T2) of the second connecting member 382 may be 0.5 mm or more, but the examples of the present specification are not limited thereto. For example, the first thickness (T1) of the first connecting member 381 and the second thickness (T2) of the second connecting member 382 may be 0.5 mm to 3 mm, but the examples of the present specification are not limited thereto.

[0410] The acoustic device 30 according to another embodiment of the present specification may further include an air gap (AG) in a region between the enclosure 310 and the vehicle interior material 130. For example, the air gap (AG) may be in a region between the first portion of the connecting member 380 and the vehicle interior material 130, or in a region between the first portion and the second portion of the connecting member 380. For example, the air gap (AG) may be in a third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310. For example, the air gap (AG) may be in a region between the third region (A3) of the enclosure 310 and the vehicle interior material 130. For example, by providing the air gap (AG) in the third area (A3) between the first area (A1) and the second area (A2) of the enclosure 310, it is possible to separate or minimize interference between the vibrations of the first area (A1) and the second area (A2), thereby increasing the vibration force (or vibration amount) transmitted from the second area (A2) of the enclosure 310, for example, the edge portion, to the vehicle interior material 130. This allows the range (reproduction range) of the low-frequency band to be expanded, and therefore the acoustic characteristics and / or sound pressure characteristics of the low-frequency band can be further improved.

[0411] According to one embodiment of the present specification, by configuring the connecting member 380 to include first and second portions having different thicknesses, it is possible to provide an acoustic device 30 with improved acoustic characteristics and / or sound pressure characteristics in the low frequency range. According to one embodiment of the present specification, by configuring the second connecting member 382, ​​it is possible to increase the vibration area (or vibration region) of the roof trim when connecting the acoustic device 30 to the roof trim of a vehicle, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low frequency range.

[0412] FIG. 36 is a diagram showing a method of connecting the acoustic device shown in FIG. 35 and a connecting portion according to another embodiment of the present specification.

[0413] 35 and 36, according to one embodiment of the present specification, a first connecting member 381 of connecting member 380 may be connected (or attached) to a rear surface (or a first part or a second part) of enclosure 310 or first enclosure 311 such that hole 380o overlaps (or is connected) with opening 310o of enclosure 310 or first enclosure 311, and a second connecting member 382 of connecting member 380 may be connected (or attached) to an edge portion (or a second part) of first connecting member 381.

[0414] The enclosure 310 or the first enclosure 311 may be disposed on the vehicle interior material 130 such that the opening 310o overlaps (or is connected to) the hole 137 of the vehicle interior material 130. The coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the second hole 137 of the vehicle interior material 130 and the hole 380o of the first connecting member 381 (in the direction of the arrow) in the interior space of the vehicle. For example, the coupling part 500 may be accommodated or inserted into the second hole 137 of the vehicle interior material 130, the hole 380o of the first connecting member 381, and the opening 310o of the first enclosure 311 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or received) in the opening 310o of the first enclosure 311 and coupled or connected to the home portion 311g of the first enclosure 311 by a hook coupling manner.

[0415] Therefore, the first enclosure 311 is connected (or in contact) with the vehicle interior material 130 by connection with the connecting portion 500 and by the first connecting member 381 and the second connecting member 382, ​​and can output sound by vibrating the vehicle interior material 130 through the vibration of the vibration device.

[0416] The first connecting member 381 may have an initial thickness (T1') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T1) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling part 500 and the enclosure 310. For example, when the coupling part 500 is coupled (or connected) to the enclosure 310, the thickness of the first connecting member 381 may be compressed from the initial thickness (T1') to the compressed thickness (T1) by the pressure applied from the enclosure 310, so that the vibration of the first area (A1) in the first enclosure 311 may be efficiently transmitted to the vehicle interior material 130 through the first part of the first connecting member 381. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling part 500, the first connecting member 381 may be restored from the deformed thickness (T1) to the initial thickness (T1') by the elastic restoring force.

[0417] The second connecting member 382 may have an initial thickness (T2') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T2) by the pressure applied from the enclosure 310 when the connecting part 500 and the enclosure 310 are connected (or joined). For example, when the connecting part 500 is connected (or joined) to the enclosure 310, the thickness of the second connecting member 382 may be compressed from the initial thickness (T2') to the compressed thickness (T2) by the pressure applied from the enclosure 310, so that vibrations of the second region (A2) in the first enclosure 311 may be efficiently transmitted to the vehicle interior material 130 via the compressed first connecting member 381 and second connecting member 382. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by separating the coupling portion 500, the second connecting member 382 can be restored from the deformed thickness (T2) to the initial thickness (T2') by the elastic restoring force.

[0418] The vehicle interior material 130 connected (or in contact) with the enclosure 310 or the first enclosure 311 can be deformed to include a bent portion or at least one curved portion by the connection (or coupling) between the coupling portion 500 and the enclosure 310, and thus lifting generated between the edge portion of the enclosure 310 or the first enclosure 311 and the vehicle interior material 130 can be prevented by the second portion of the coupling member 380 having a relatively large thickness. As a result, the vibration at the edge portion of the enclosure 310 or the first enclosure 311 caused by the vibration of the vibration device can be transmitted to the vehicle interior material 130 without loss, so that the efficiency of vibration transmitted from the enclosure 310 to the vehicle interior material 130 can be improved, and the acoustic characteristics and / or sound pressure characteristics in the low frequency range can be further improved.

[0419] The acoustic device 30 described with reference to Fig. 35 and Fig. 36 may further include one or more holes 331o described with reference to Fig. 30, or may further include the protective member 410 described with reference to Fig. 31, or may further include one or more holes 331o and the protective member 410 and at least one hole 410h of the protective member 410 described with reference to Fig. 32, and the overlapping description thereof will be omitted. For example, an acoustic device according to another embodiment of the present specification is configured to include at least one or more of the first enclosure 311, the one or more holes 331o, and the at least one hole 410h of the protective member 410, and to include one of the shape of the coupling part 500, the width (W) of the coupling part 500, and the length (L) of the coupling part 500, so that the acoustic characteristics and / or sound pressure characteristics of each of the bass band and the mid-range band may be further improved, and the sound reproduction band may be further expanded.

[0420] Fig. 37 is a diagram showing an acoustic device according to another embodiment of the present specification. Fig. 37 shows another embodiment of the connecting member 380 described with reference to Figs. 35 and 36. Therefore, in the following description, overlapping descriptions of the remaining configurations except for the connecting member 380 may be omitted or simplified. The description of the enclosure 310 or the first enclosure 311 described with reference to Figs. 35 and 36 and the description of the connecting member 380 may be included in the description of Fig. 37.

[0421] Referring to FIG. 37, an acoustic device 30 according to another embodiment of the present disclosure may further include a connecting member 380.

[0422] 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 that is connected to the internal space 313 of the enclosure 310. For example, the first portion of the connecting member 380 may include an opening hole 380o that is connected to the internal space 313 of the first enclosure 311. The enclosure 310 or the first enclosure 311 may include a first region (A1), a second region (A2), and a third region (A3).

[0423] According to an embodiment of the present specification, the first and second portions of the connecting member 380 may have different thicknesses (T3, T4). For example, the connecting member 380 may include a first and a second portion having different thicknesses (T3, T4). In the connecting member 380, the thickness (T3) of the first portion may be different from the thickness (T4) of the second portion. For example, in the connecting member 380, the thickness (T4) of the second portion may be thicker than the thickness (T3) of the first portion. For example, the thickness (T3) of the connecting member 380 in the first region (A1) may be different from the thickness (T4) of the connecting member 380 in the second region (A2). For example, the thickness (T4) of the connecting member 380 in the second region (A2) may be thicker than the thickness (T3) of the connecting member 380 in the first region (A1). For example, the connecting member 380 may not be disposed in the third region (A3) between the first region (A1) and the second region (A2) or in the portion between the first portion and the second portion.

[0424] According to an embodiment of the present specification, since the second portion of the connecting member 380 has a thickness (T4) greater than that of the first portion, the edge portion of the connecting member 380 can be connected to or contacted with the vehicle interior material 130 without lifting up. This can prevent the edge portion of the connecting member 380 from lifting up from the vehicle interior material 130, and vibrations within the edge portion of the enclosure 310 can be transmitted to the vehicle interior material 130 without loss of vibration (or vibration transmission) at the edge portion of the enclosure 310. The vibrations at the edge portion of the enclosure 310 increase the vibration area of ​​the vehicle interior material 130, so that the acoustic characteristics of the low-frequency range can be further improved or complemented. Therefore, the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 without loss, so that the sound of the low-frequency range can be further improved. For example, sound generated by vibration of the acoustic device 30 may be transmitted to the vehicle interior material 130 through the opening 310o and the edge portion of the enclosure 310, thereby increasing the efficiency of the vibration transmitted from the enclosure 310 to the vehicle interior material 130 and further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0425] According to one embodiment of the present disclosure, the connecting member 380 may include a first connecting member 383 and a second connecting member 384 .

[0426] The first connecting member 381 may be connected to the enclosure 310. The first connecting member 381 may be in the first portion. The first connecting member 383 may be in only the first portion of the first portion and the second portion. The first connecting member 383 may be connected (or attached) to the first region (A1) of the enclosure 310. For example, the first connecting member 383 may be connected (or attached) to the back surface of the first enclosure 311 corresponding to the first portion of the first portion and the second portion. For example, the first connecting member 383 may be connected (or attached) to the center portion (or the back center portion) of the first enclosure 311. For example, the first connecting member 383 may be connected (or attached) to only the first region (A1) of the first to third regions (A1, A2, A3) of the enclosure 310.

[0427] According to an embodiment of the present disclosure, the first connecting member 383 may include an opening hole 380o in the first portion and connected to the internal space 313 of the enclosure 310. For example, the first connecting member 383 may include an opening hole 380o in the first portion and connected to the internal space 313 of the first enclosure 311.

[0428] The second connecting member 384 can be in the second portion. The second connecting member 384 can be in only the second portion of the first portion and the second portion and can be separated from the first connecting member 383. The second connecting member 384 can be in the second portion of the first portion and the second portion so as to surround the first connecting member 383 with an air gap (AG) therebetween. The second connecting member 384 can be connected (or attached) to the second area (A2) of the enclosure 310. For example, the second connecting member 384 can be connected (or attached) to the back surface of the first enclosure 311 corresponding to the second portion of the first portion and the second portion. For example, the second connecting member 384 can be connected (or attached) to an edge portion (or a back edge portion) of the first enclosure 311. For example, the second connecting member 384 may be connected (or attached) only to the second area (A2) of the enclosure 310's first to third areas (A1, A2, A3).

[0429] 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 in the first region (A1) may be smaller than the width of the second connecting member 384 in the second region (A2). Thus, the first connecting member 383 and the second connecting member 384 may include different sizes (or widths) and different thicknesses.

[0430] Each of the first connecting member 383 and the second connecting member 384 may be a cushion member or a pad member, although the embodiments herein are not limited thereto.

[0431] The first connecting member 383 may include the same material 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, etc., but the embodiments of the present specification 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 be made of a dual synthetic rubber (or ethylene propylene diene M class rubber), an ethylene propylene rubber, or a urethane rubber.

[0432] According to an embodiment of the present disclosure, the width of the connecting member 380 in the second portion may be greater than the width of the coupling member 320. For example, the width of the connecting member 380 in the second region (A2) may be greater than the width of the coupling member 320.

[0433] According to one embodiment of the present specification, each of the first connecting member 383 and the second connecting member 384 of the connecting member 380 has a compressive force (or contraction force) and an elastic restoring force, and can be contracted or compressed by the connection between the connecting portion 500 and the first enclosure 311. For example, the first connecting member 383 disposed (or interposed) between the first enclosure 311 and the vehicle interior material 130 can have a first thickness (T3) compressed by the pressure force of the first enclosure 311. The second connecting member 384 disposed (or interposed) between the first enclosure 311 and the vehicle interior material 130 can have a second thickness (T4) compressed by the pressure force of the first enclosure 311.

[0434] The first thickness (T3) of the first connecting member 383 may be different from the second thickness (T4) of the second connecting member 384. The first thickness (T3) of the first connecting member 383 and the second thickness (T4) of the second connecting member 384 may be 0.5 mm or more, but the embodiment of the present specification is 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 be 0.5 mm to 3 mm, but the embodiment of the present specification is 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 from each other within a range of 0.5 mm to 3 mm. For example, the second thickness (T4) of the second connecting member 384 may be thicker than the first thickness (T3) of the first connecting member 383 within a range of 0.5 mm to 3 mm.

[0435] The acoustic device 30 according to other embodiments of the present specification may further include an air gap (AG). For example, the air gap (AG) may be in a region between the first portion of the connecting member 380 and the vehicle interior material 130, or in a region between the first portion and the second portion of the connecting member 380. For example, the air gap (AG) may be in a third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310. For example, the air gap (AG) may be in a region between the third region (A3) of the enclosure 310 and the vehicle interior material 130. For example, by providing the air gap (AG) in the third area (A3) between the first area (A1) and the second area (A2) of the enclosure 310, it is possible to separate or minimize interference between the vibrations of the first area (A1) and the second area (A2), thereby increasing the vibration force (or vibration amount) transmitted from the second area (A2) of the enclosure 310, for example, the edge portion, to the vehicle interior material 130. This allows the range (reproduction range) of the low-frequency band to be expanded, and therefore the acoustic characteristics and / or sound pressure characteristics of the low-frequency band can be further improved.

[0436] According to one embodiment of the present specification, by configuring the first and second connecting members 383, 384 to have different thicknesses (T3, T4), it is possible to provide an acoustic device 30 having improved acoustic characteristics and / or sound pressure characteristics in the low frequency range. According to one embodiment of the present specification, by configuring the second connecting member 384, it is possible to increase the vibration area (or vibration region) of the roof trim when connecting the acoustic device 30 to the roof trim of a vehicle, so that it is possible to further improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range.

[0437] FIG. 38 is a diagram showing a method of connecting the acoustic device shown in FIG. 37 and a connecting portion according to another embodiment of this specification.

[0438] 37 and 38, according to one embodiment of the present specification, a first connecting member 383 of the connecting member 380 is connected (or attached) to a central portion (or a first portion) of the enclosure 310 or the first enclosure 311 such that the hole 380o overlaps (or is connected) with the opening 310o of the enclosure 310 or the first enclosure 311, and a second connecting member 384 of the connecting member 380 is connected (or attached) to an edge portion (or a second portion) of the enclosure 310 or the first enclosure 311.

[0439] The enclosure 310 or the first enclosure 311 is disposed on the vehicle interior material 130 such that the opening 310o overlaps (or is connected to) the hole 137 of the vehicle interior material 130. The coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the coupling part 500 may be coupled or connected to the acoustic device 30 or the enclosure 310 through the second hole 137 of the vehicle interior material 130 and the hole 380o of the first connecting member 383 (in the direction of the arrow) in the interior space of the vehicle. For example, the coupling part 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 310o of the first enclosure 311 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be coupled or connected to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or received) in the opening 310o of the first enclosure 311 and coupled or connected to the home portion 311g of the first enclosure 311 by a hook coupling manner.

[0440] Therefore, the first enclosure 311 is connected (or in contact) with the vehicle interior material 130 by connection with the connecting portion 500 and by the first connecting member 383 and the second connecting member 384, and can output sound by vibrating the vehicle interior material 130 through the vibration of the vibration device.

[0441] The first connecting member 383 may have an initial thickness (T3') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T3) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling part 500 and the enclosure 310. For example, when the coupling part 500 is coupled (or connected) to the enclosure 310, the thickness of the first connecting member 383 may be compressed from the initial thickness (T3') to the compressed thickness (T3) by the pressure applied from the enclosure 310, so that the vibration of the first area (A1) in the first enclosure 311 may be efficiently transmitted to the vehicle interior material 130 via the first connecting member 383. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling part 500, the first connecting member 383 may be restored from the deformed thickness (T3) to the initial thickness (T3') by the elastic restoring force.

[0442] The second connecting member 384 may have an initial thickness (T4') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T4) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling part 500 and the enclosure 310. For example, when the coupling part 500 is coupled (or connected) to the enclosure 310, the thickness of the second connecting member 384 may be compressed from the initial thickness (T4') to the compressed thickness (T4) by the pressure applied from the enclosure 310, so that the vibration of the second region (A2) in the first enclosure 311 may be efficiently transmitted to the vehicle interior material 130 through the compressed second connecting member 384. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling part 500, the second connecting member 384 may be restored from the deformed thickness (T4) to the initial thickness (T4') by the elastic restoring force.

[0443] The vehicle interior material 130 connected (or in contact) with the enclosure 310 or the first enclosure 311 can be deformed to include a bent portion or at least one curved portion by the connection (or coupling) between the coupling portion 500 and the enclosure 310, and thus lifting generated between the edge portion of the enclosure 310 or the first enclosure 311 and the vehicle interior material 130 can be prevented by the second coupling member 384 having a relatively large thickness. As a result, vibration at the edge portion of the enclosure 310 or the first enclosure 311 caused by the vibration of the vibration device can be transmitted to the vehicle interior material 130 without loss, so that the efficiency of vibration transmitted from the enclosure 310 to the vehicle interior material 130 can be improved, and the acoustic characteristics and / or sound pressure characteristics in the low frequency range can be further improved.

[0444] The acoustic device 30 described with reference to Fig. 37 and Fig. 38 may further include one or more holes 331o described with reference to Fig. 30, or may further include the protective member 410 described with reference to Fig. 31, or may further include one or more holes 331o and the protective member 410 and at least one hole 410h of the protective member 410 described with reference to Fig. 32, and the overlapping description thereof will be omitted. For example, an acoustic device according to another embodiment of the present specification is configured to include at least one or more of the first enclosure 311, the one or more holes 331o, and the at least one hole 410h of the protective member 410, and to include one 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, so that the acoustic characteristics and / or sound pressure characteristics of the bass band and the mid-range band may be further improved, and the sound reproduction band may be further expanded.

[0445] Fig. 39 is a diagram showing a vibration device according to one embodiment of the present specification. Fig. 39 shows an example in which a signal supplying member is further configured in addition to the sound generating module of the acoustic device described with reference to Figs. 3 to 38. Therefore, in the following description, overlapping descriptions of the remaining configuration except for the signal supplying member can be omitted or simplified.

[0446] 39, the sound generating module 330 or the vibration devices 333, 335 according to an embodiment of the present specification may further include a signal supplying member 1320 electrically connected to the vibration generating unit 1311. For example, each of the first and second vibration devices 333, 335 may further include a signal supplying member 1320 electrically connected to the vibration generating unit 1311.

[0447] In each of the first and second vibrating devices 333, 335, the signal supplying member 1320 may be configured to supply a drive signal supplied from the drive circuit unit to the vibration generating unit 1311. The signal supplying member 1320 may be configured to be electrically connected to the vibrating unit 1311a. The signal supplying member 1320 may be configured to be electrically connected to the first electrode portion 1311b and the second electrode portion 1311c of the vibrating unit 1311a.

[0448] In each of the first and second vibration devices 333, 335, a portion of the signal supplying member 1320 may be accommodated (or inserted) between the cover member 1313 and the vibration member 331. An end (or terminal or one side) 1320e of the signal supplying member 1320 may be disposed or inserted (or accommodated) in a portion between an edge portion on one side of the cover member 1313 and the vibration member 331. The portion between the edge portion on one side of the cover member 1313 and the vibration member 331 may accommodate the end 1320e of the signal supplying member 1320 or cover it from above and below. Thereby, the signal supplying member 1320 may be integrated with the vibration generating unit 1311. Therefore, the sound generating module 330 or the first and second vibration devices 333, 335 may be realized in the form of a film integrated with the signal supplying member 1320. For example, the signal supplying member 1320 may be configured as one part with the vibration generating unit 1311, thereby achieving the effect of uni-materialization. For example, the signal supply member 1320 may be comprised of a signal cable, a flexible cable, a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multi-layer printed circuit, or a flexible multi-layer printed circuit board, although examples herein are not limited thereto.

[0449] In each of the first and second vibration devices 333, 335, a signal supplying member 1320 according to an embodiment of the present specification may include a plurality of signal lines 1321, 1322. For example, the signal supplying member 1320 may include a first signal line 1321 and a second signal line 1322.

[0450] The first signal line 1321 and the second signal line 1322 may protrude (or extend) from the body of the signal supply member 1320 so as to be parallel to each other in the second direction (Y) from the body. For example, each of the first signal line 1321 and the second signal line 1322 may be individually bent or curved.

[0451] The first signal line 1321 may be electrically connected to the first electrode unit 1311b of the vibration generating unit 1311. For example, the first signal line 1321 may be electrically connected to or directly connected to at least a portion of the first electrode unit 1311b of the vibration generating unit 1311 at an edge portion on one side of the cover member 1313. For example, the first signal line 1321 may be directly connected to or directly contact with the first electrode unit 1311b between the first electrode unit 1311b of the vibration generating unit 1311 and the home portion of the vibrating member 331. Thus, the first signal line 1321 may supply the first driving signal supplied from the vibration driving unit to the first electrode unit 1311b of the vibration generating unit 1311.

[0452] The second signal line 1322 may be electrically connected to the second electrode unit 1311c of the vibration generating unit 1311. For example, the second signal line 1322 may be electrically connected to or directly connected to at least a portion of the second electrode unit 1311c of the vibration generating unit 1311 at an edge portion on one side of the cover member 1313. For example, the second signal line 1322 may be directly connected to or directly contact with the second electrode unit 1311c between the cover member 1313 and the second electrode unit 1311c of the vibration generating unit 1311. Thus, the second signal line 1322 can supply the second driving signal supplied from the vibration driving unit to the second electrode unit 1311c of the vibration generating unit 1311.

[0453] According to one embodiment of the present specification, in each of the first and second vibration devices 333, 335, the first signal line 1321 and the second signal line 1322 of the signal supplying member 1320 are integrated with the vibration generating unit 1311, so that a soldering process for electrical connection between the vibration generating unit 1311 and the signal supplying member 1320 is not required, thereby simplifying the structure and manufacturing process of the vibration devices 333, 335, thereby having the effect of improving harmful processes.

[0454] Fig. 40 is a diagram showing a vibration device according to another embodiment of the present specification. Fig. 40 shows an example in which a signal supplying member is further configured in the sound generating module of the sound device described with reference to Fig. 10 and Fig. 11. Therefore, in the following description, overlapping descriptions of the remaining configuration except for the signal supplying member can be omitted or simplified.

[0455] 40, the sound generating module 330 or the vibration device 333, 335 according to an embodiment of the present specification may further include a signal supplying member 1320 electrically connected to each of the plurality of vibration generators 333A, 333B, 335A, 335B. For example, each of the first and second vibration devices 333, 335 may further include a first signal supplying member 1320 electrically connected to the first vibration generators 333A, 335A, and a second signal supplying member 1330 electrically connected to the second vibration generators 333B, 335B.

[0456] In each of the first and second vibrating devices 333 and 335, the first signal supplying member 1320 may be configured to supply a driving signal supplied from the driving circuit unit to the vibration generating unit 1311 of the first vibration generator 333A and 335A. The first signal supplying member 1320 may be configured to be electrically connected to the first electrode unit 1311b and the second electrode unit 1311c of the vibration unit 1311a. A portion of the first signal supplying member 1320 may be accommodated (or inserted) between the cover member 1313 and the vibration member 331. The first signal supplying member 1320 electrically connected to the first vibration generators 333A and 335A of each of the first and second vibrating devices 333 and 335 is substantially the same as the signal supplying member 1320 described with reference to FIG. 39, and therefore a duplicated description thereof will be omitted.

[0457] In each of the first and second vibration devices 333, 335, the second signal supplying member 1330 may be configured to supply a drive signal supplied from the drive circuit to the vibration generating portion 1311 of the second vibration generator 333B, 335B. The second signal supplying member 1330 may be configured to be electrically connected to the first electrode portion 1311b and the second electrode portion 1311c of the vibration portion 1311a.

[0458] In each of the first and second vibration devices 333, 335, a portion of the second signal supplying member 1330 may be accommodated (or inserted) between the cover member 1313 and the intermediate member 333M, 335M. An end (or terminal portion or one side) 1330e of the second signal supplying member 1330 may be disposed or inserted (or accommodated) in a portion between an edge portion on one side of the cover member 1313 and the intermediate member 333M, 335M. The portion between the edge portion on one side of the cover member 1313 and the intermediate member 333M, 335M may accommodate the end 1330e of the second signal supplying member 1330 or cover it from above and below.

[0459] In each of the first and second vibration devices 333, 335, the second signal supplying member 1330 may include a plurality of signal lines 1331, 1332. For example, the second signal supplying member 1330 may include a first signal line 1331 and a second signal line 1332.

[0460] The first signal line 1331 and the second signal line 1332 may protrude (or extend) from the body of the second signal supply member 1330 so as to be parallel to each other in the second direction (Y) from the body. For example, each of the first signal line 1331 and the second signal line 1332 may be individually bent or curved.

[0461] The first signal line 1331 may be electrically connected to the first electrode unit 1311b of the vibration generating unit 1311. For example, the first signal line 1331 may be electrically connected to or directly connected to at least a portion of the first electrode unit 1311b of the vibration generating unit 1311 at an edge portion on one side of the cover member 1313. For example, the first signal line 1331 may be directly connected to or directly contact with the first electrode unit 1311b between the first electrode unit 1311b of the vibration generating unit 1311 and the intermediate members 333M and 335M. Thus, the first signal line 1331 may supply the first driving signal supplied from the vibration driving unit to the first electrode unit 1311b of the vibration generating unit 1311.

[0462] The second signal line 1332 may be electrically connected to the second electrode unit 1311c of the vibration generating unit 1311. For example, the second signal line 1332 may be electrically connected to or directly connected to at least a portion of the second electrode unit 1311c of the vibration generating unit 1311 at an edge portion on one side of the cover member 1313. For example, the second signal line 1332 may be directly connected to or directly contact with the second electrode unit 1311c between the cover member 1313 and the second electrode unit 1311c of the vibration generating unit 1311. Thus, the second signal line 1332 may supply the secon...

Claims

1. a sound generating module including a vibration member and a vibration device configured on the vibration member; and an enclosure coupled to the vibrating member across an internal space; An acoustic device, a portion of the vibration device being housed in the vibration member.

2. the vibration member includes a housing for receiving the portion of the vibration device; or 2. The acoustic device of claim 1, wherein the vibration device includes an electrode layer received in the home of the vibration member.

3. The vibration device includes one or more vibration generators; The acoustic device of claim 1 , wherein a portion of the one or more vibration generators is housed in the vibrating member.

4. The one or more vibration generators include a vibration generating unit, The acoustic device according to claim 3 , wherein a portion of the vibration generating portion is housed in the vibrating member.

5. The one or more vibration generators further include a cover member that covers the vibration generating unit, or The acoustic device according to claim 4 , further comprising a cover member attached to the vibration member so as to cover the vibration generating portion.

6. The vibration generating unit is A vibration part including a piezoelectric material; a first electrode portion on a first surface of the vibration portion; and a second electrode portion on a second surface different from the first surface of the vibration portion; The acoustic device according to claim 4 , wherein one of the first electrode portion and the second electrode portion is housed in the vibration member.

7. of the first electrode portion and the second electrode portion, the second electrode portion is housed in the vibration member, The one or more vibration generators include: A cover member for covering the first electrode portion; and The acoustic device of claim 6 , further comprising a signal supplying member electrically connected to the first electrode portion and the second electrode portion.

8. The signal supplying member is a first signal line between the vibration member and the first electrode portion, the first signal line being electrically connected to the first electrode portion; and The acoustic device according to claim 7 , further comprising a second signal line electrically connected to the second electrode portion between the cover member and the second electrode portion.

9. The vibration device is a first vibration device configured on a first surface of the vibration member; and The acoustic device of claim 1 , further comprising a second vibrating device arranged on a second surface of the vibrating member that is different from the first surface.

10. a coupling member coupled to the enclosure; The acoustic device of claim 1 , wherein the connecting member includes a first portion and a second portion having different thicknesses.

11. a thickness of the second portion of the connecting member is greater than a thickness of the first portion of the connecting member, and / or the second portion of the connecting member is at an edge portion of the enclosure; The acoustic device of claim 10 , wherein the first portion of the connecting member is on a remaining portion of the enclosure excluding the edge portion.

12. The vibration member is configured to cover the interior space of the enclosure; An acoustic device according to any one of claims 1 to 11, wherein the enclosure is coupled to an edge portion of the vibrating member and includes an opening communicating with the interior space.

13. The vibration device is a first vibration device configured on a first surface of the vibration member; and 13. An acoustic device as claimed in claim 12, comprising a second vibrating device coupled to a second surface of the vibrating member different from the first surface or coupled to the first vibrating device.

14. 14. The acoustic device of claim 13, wherein the vibrating member further comprises one or more holes in a periphery of the vibrating device.

15. Further comprising a protective member on the second vibration device; The acoustic device of claim 13 , wherein the protective member is configured to be in contact with the second vibration device and the second surface of the vibration member, or configured to cover the second vibration device and the second surface of the vibration member.

16. Interior materials exposed to the interior space, and one or more sound generating devices disposed in the interior material and outputting sound into the interior space; A transport device, wherein the one or more sound-generating devices comprise an acoustic device according to any one of claims 1 to 11.

17. the vibrating member of the one or more sound-generating devices is configured to cover the interior space of the enclosure; 17. The transportation device of claim 16, wherein the enclosure is coupled to an edge portion of the vibration member and includes an opening communicating with the interior space.

18. The vibration device is a first vibration device configured on a first surface of the vibration member; and 20. The transportation device of claim 17, comprising a second vibrating device coupled to a second surface of the vibrating member that is different from the first surface or coupled to the first vibrating device.

19. a coupling portion configured to couple the enclosure of the one or more sound-generating devices to the interior material; The transportation device of claim 17 , wherein the coupling portion includes a hollow portion that communicates with the interior space of the enclosure through the opening of the enclosure.

20. the interior material comprises one or more of the following materials: metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather; and / or the interior material includes at least one of a dashboard, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, a floor interior material, a rear package interior material, an overhead console, a rear view mirror, a glove box, a garnish member, and a sun visor; 17. The transportation device of claim 16, wherein the one or more sound generating devices vibrate at least one of the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the steering wheel interior material, the floor interior material, the rear package interior material, the overhead console, the rearview mirror, the glove box, the garnish member, and the sun visor to generate sound.

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