Operation module with sound device

Abstract

To provide an operation module with an acoustic device which can secure a sufficient distance between a speaker and a microphone.SOLUTION: An operation module 20 with an acoustic device includes: a housing 31; a switch group 34; a speaker 71; a first microphone 72; and a second microphone 74. The housing is attached to a roof 14. The switch group is formed by multiple switches related to a vehicle and provided within the housing. The speaker is provided within the housing. The first microphone and the second microphone are provided within the housing. The speaker and the microphones are disposed at both sides sandwiching the switch group.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an operating module with an acoustic device. [Background technology]

[0002] A known in-vehicle device has a housing mounted on the roof that forms the ceiling of the vehicle compartment at the front of the vehicle and in the center in the vehicle width direction, and a speaker, a first microphone, and a second microphone are mounted inside the housing. Hereinafter, the in-vehicle device may be referred to as an audio device. In the audio device, the speaker and the first microphone are positioned so as not to overlap when viewed from the vehicle compartment, and the speaker and the second microphone are also positioned so as not to overlap when viewed from the vehicle compartment. The housing is disposed so that the direction substantially perpendicular to the center line of the housing surface is along the vehicle width direction. Furthermore, the first microphone and the second microphone are disposed at positions that are line-symmetrical in the left-right direction of the vehicle with respect to the center line. This acoustic device allows signals to be sent and received wirelessly between the vehicle and external devices in the vehicle cabin (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2018 / 216694 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the sound device in Patent Document 1 is installed on the roof at the front of the vehicle and in the center in the vehicle width direction. Meanwhile, a group of switches such as an interior light and vehicle control switches are provided on the front part of the roof. Therefore, the sound device needs to be installed in a way that avoids interference with the group of switches provided on the roof, which places a limit on the size of the sound device. That is, it is difficult to ensure a sufficient distance between the speaker and the first microphone, and it is also difficult to ensure a sufficient distance between the speaker and the second microphone, which may result in poor quality of speech when using the audio device to make audio calls with an external device.

[0005] An object of the present invention is to provide an operation module with an audio device that can ensure a sufficient distance between the speaker and microphone. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention proposes the following means. (1) The operation module with an audio device according to the present invention is composed of a housing (e.g., housing 31 in the embodiments) that is attached to a roof (e.g., roof 14 in the embodiments) and a plurality of switches (e.g., first sunroof switch 51, second sunroof switch 52, first lighting switch 54, second lighting switch 56, and emergency call switch 57 in the embodiments) related to a vehicle (e.g., vehicle Ve in the embodiments), and is provided with a group of switches (e.g., switch group 34 in the embodiments) provided inside the housing, a speaker (e.g., speaker 71 in the embodiments) provided inside the housing, and microphones (e.g., first microphone 72 and second microphone 74 in the embodiments) provided inside the housing, the group of switches being arranged in the center inside the housing, and the speaker and the microphones being arranged on either side of the group of switches.

[0007] This configuration places the switches in the center of the housing, ensuring ease of use for each switch. Furthermore, the speaker and microphone are located on either side of the switch group, ensuring a sufficient distance between the speaker and microphone. This allows the speaker and microphone to be spaced far enough apart without compromising the ease of use of the switches in the switch group. This ensures good call quality when using the audio device to make audio calls to external devices. Additionally, the housing placed on the roof can be made compact.

[0008] (2) The microphone may be an omnidirectional microphone.

[0009] This configuration uses an omnidirectional microphone, which means that the microphone can be used not only for voice calls but also as a sound pickup microphone for ANC (active noise cancellation, active noise control).

[0010] (3) A board (for example, the switch board 36 in the embodiment) for connecting the group of switches may be provided in the center inside the housing.

[0011] With this configuration, a board (hereinafter sometimes referred to as a switch board) that connects the switches is located in the center inside the housing. This allows the microphone and speaker to be located on either side of the switch board. This allows the housing to be placed on the roof in a compact size while ensuring a sufficient distance between the microphone and speaker.

[0012] (4) The housing may further include a microphone board (e.g., first microphone board 73, second microphone board 75 in the embodiment) on which the microphone is attached, and the microphone board and the speaker may be separably connected to a board (e.g., switch board 36 in the embodiment) that connects the group of switches.

[0013] With this configuration, the board to which the switches are connected (i.e., the switch board) can be connected to the microphone board and the speaker in a disconnected state, allowing for flexible connection of the switch board and microphone board in accordance with, for example, the vehicle's equipment specifications, destination, and regulations. This allows for expandability of the audio device.

[0014] (5) The housing is composed of a back portion (e.g., back portion 42 in the embodiment) attached to the side of the roof and a surface portion (e.g., surface portion 43 in the embodiment) facing the back portion, and the board connecting the group of switches may be arranged on the side of the back portion inside the housing, and the microphone board and the speaker may be arranged on the surface portion of the housing.

[0015] Here, for example, if the microphone board and speaker are integrally formed on the board (i.e., switch board) on which the switches are attached, the switch board is positioned close to the surface, which makes it difficult to suppress vibration noise caused by interference between the switch board and the surface, and also makes it difficult to ensure the durability of the switch board.

[0016] Therefore, in this configuration, the switch board is placed on the rear side, and the microphone board and speaker are placed on the front side. This allows the switch board to be separated from the microphone board and speaker and separated from the front side. This makes it possible to suppress vibration noise caused by interference between the switch board and the front side compared to when the microphone board and speaker are integrally formed on the switch board, and also improves the durability of the switch board. [Effects of the Invention]

[0017] According to the present invention, the speaker and microphone are disposed on either side of the group of switches, thereby ensuring a sufficient distance between the speaker and microphone. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a front view of a vehicle equipped with an operation module with a sound device according to an embodiment of the present invention, viewed from the passenger compartment toward the front of the vehicle. [Figure 2] 1 is a plan view of an operation module with a sound device according to an embodiment, as seen from the vehicle interior. [Figure 3] 1 is an exploded perspective view showing an operation module with a sound device according to an embodiment in an exploded state. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. [Figure 5] 1 is a conceptual diagram illustrating the specifications of the acoustic device according to the embodiment, in which a switch board, a speaker, a first microphone board, and a second microphone board are connected. [Figure 6] FIG. 10 is a conceptual diagram illustrating the specifications when a switch board, a first microphone board, and a second microphone board are connected in an acoustic device of a first modified example. [Figure 7] FIG. 10 is a conceptual diagram illustrating the specifications of an acoustic device according to a second modified example, in which a switch board, a speaker, and a first microphone board are connected together. [Figure 8] FIG. 11 is a conceptual diagram illustrating the specifications when a switch board and a first microphone board are connected in an acoustic device according to a third modified example. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, a vehicle rear structure according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, the arrow FR indicates the front of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.

[0020] [Embodiment] <Vehicle> FIG. 1 is a front view of a vehicle Ve equipped with an audio-equipped operation module 20 according to an embodiment, viewed from a vehicle interior 11 toward the front of the vehicle. 1, a vehicle Ve includes, for example, a passenger compartment 11, an instrument panel 12, a windshield 13, a roof 14, a left side door 15, a right side door 16, a driver's seat 17, a passenger seat 18, and an operation module with an audio device 20. The operation module with an audio device 20 may be abbreviated as "operation module 20."

[0021] A vehicle interior 11 is formed by an instrument panel 12, a windshield 13, a roof 14, a left side door 15, and a right side door 16. The instrument panel 12 is provided in the front part of the vehicle interior 11, facing in the vehicle width direction. A steering wheel 22 is disposed behind the instrument panel 12, for example, on the right side in the vehicle width direction. In the embodiment, an example in which the steering wheel 22 is provided on the right side in the vehicle width direction will be described, but the steering wheel 22 may be provided on the left side in the vehicle width direction.

[0022] The windshield 13 extends upward from the front end of the instrument panel 12. The roof 14 is a member that forms the ceiling of the vehicle interior 11 and supports the upper end of the windshield 13. The roof 14 includes, for example, a roof panel 24 and a roof lining 25 (see FIG. 4 for both). The roof lining 25 is disposed on the rear side of the roof panel 24, with its surface 25a facing the vehicle interior 11.

[0023] The left side door 15 is located below the roof 14 on the left side of the passenger compartment 11. The right side door 16 is located below the roof 14 on the right side of the passenger compartment 11. The driver's seat 17 is located behind the steering wheel 22 in the passenger compartment 11. The passenger seat 18 is located to the left of the driver's seat 17 in the vehicle width direction in the passenger compartment 11.

[0024] The operation module 20 is a so-called roof module that includes an acoustic device 40, which will be described later. The operation module 20 is attached to the roof 14, which is provided above the windshield 13, at the front of the vehicle and in the center in the vehicle width direction. Note that the operation module 20 may be provided in another location on the roof 14, or may be provided on the instrument panel 12, etc.

[0025] <Operation module with audio device> Fig. 2 is a plan view of the operation module 20 of the embodiment as seen from the vehicle interior 11. Fig. 3 is an exploded perspective view showing the operation module 20 of the embodiment in an exploded state. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 2. As shown in FIGS. 2 to 4, the operation module 20 includes, for example, a housing 31, a base portion 32, a switch group 34, a switch board (board) 36, an indicator 38, and an audio device 40.

[0026] <Case> The housing 31 is attached to the front of the roof 14 and in the center in the vehicle width direction. The housing 31 is composed of a back portion (rear cover) 42 and a front portion (front cover) 43. When the back portion 42 and the front portion 43 are assembled, a hollow portion 45 is formed inside the housing 31.

[0027] The rear portion 42 is attached to the roof 14 on the side of the roof panel 24. The front portion 43 is arranged to face the rear portion 42 when assembled to the rear portion 42. For example, the front surface 43a of the front portion 43 is arranged flush with the front surface 25a of the roof lining 25. In other words, the front surface 43 is arranged so that the front surface 43a faces the passenger compartment 11. A base portion 32 is housed in a hollow portion 45 of the housing 31. The base portion 32 supports a switch group 34, a switch board 36 (described later), and the like.

[0028] <Switches> The switch group 34 is made up of a plurality of switches related to the vehicle Ve, and is provided inside the housing 31. The switch group 34 is arranged, for example, at the center in the vehicle width direction and the center in the vehicle front-rear direction inside the housing 31. Therefore, the switch group 34 is arranged on the hollow portion 45 side of the housing 31 with a gap between it and the side wall (peripheral wall) 31a of the housing 31.

[0029] The switch group 34 includes a plurality of switches, for example, a first sunroof switch 51, a second sunroof switch 52, a first lighting switch 54, a second lighting switch 56, and an emergency call switch 57. The switch group 34 also includes a first lighting 53 and a second lighting 55. The number and types of switches and lights provided in the switch group 34 are not limited to the switches and lights described in the embodiment, and can be selected arbitrarily.

[0030] The first sunroof switch 51 is, for example, a switch that opens and closes a sunroof (not shown). The first sunroof switch 51 is provided on the left side of a housing center 58 in the vehicle width direction. The housing center 58 is the center of the housing 31 in the vehicle width direction and is a straight line that extends in the front-to-rear direction of the vehicle. The first sunroof switch 51 is supported by the base portion 32, and an operation button 63 is arranged in an opening in the surface portion 43 so that it can be operated from the passenger compartment 11.

[0031] The second sunroof switch 52 is, for example, a switch for opening and closing a sunshade (not shown). The second sunroof switch 52 is provided on the right side of the housing center 58 in the vehicle width direction. The second sunroof switch 52 is supported by the base 32, and an operation button 64 is disposed in an opening in the surface portion 43 so as to be operable from the passenger compartment 11.

[0032] The first light 53 is a room lamp that illuminates the passenger seat 18 (see FIG. 1) side of the vehicle interior 11. The first light 53 is provided on the left side of the first sunroof switch 51 in the vehicle width direction. The first light 53 is supported by the base portion 32, and an illumination portion 65 is arranged in an opening in the surface portion 43 so as to be able to illuminate the vehicle interior 11.

[0033] The first lighting switch 54 is a switch that turns on the first lighting 53. The first lighting switch 54 is provided to the left of the first sunroof switch 51 in the vehicle width direction and to the rear of the first lighting 53. The first lighting switch 54 is supported by the base portion 32, and an operation button 66 is disposed in an opening in the surface portion 43 so as to be operable from the vehicle interior 11.

[0034] The second light 55 is a room lamp that illuminates the driver's seat 17 (see FIG. 1) side of the vehicle interior 11. The second light 55 is provided on the right side of the second sunroof switch 52 in the vehicle width direction. The second light 55 is supported by the base portion 32, and an illumination portion 67 is arranged in an opening in the surface portion 43 so as to be able to illuminate the vehicle interior 11.

[0035] The second lighting switch 56 is a switch that turns on the second lighting 55. The second lighting switch 56 is provided to the right of the second sunroof switch 52 in the vehicle width direction and to the rear of the second lighting 55. The second lighting switch 56 is supported by the base portion 32, and an operation button 68 is disposed in an opening in the surface portion 43 so as to be operable from the passenger compartment 11.

[0036] The emergency call switch 57 is a switch that is operated when using the audio device 40. Operating the emergency call switch 57 to use the audio device 40 enables wireless signal transmission and reception between the audio device 40 and an external device in the vehicle interior 11 (see FIG. 1). The emergency call switch 57 is located between the first sunroof switch 51 and the second sunroof switch 52 (i.e., at the housing center 58) and further rearward than the first sunroof switch 51 and the second sunroof switch 52. The emergency call switch 57 is supported by the base portion 32, and an operation button 69 is disposed in an opening in the surface portion 43 so as to be operable from the vehicle interior 11.

[0037] Since the switch group 34 is disposed at a distance from the side wall 31a of the housing 31 toward the hollow portion 45 of the housing 31, a distance is provided on the vehicle front side of the switch group 34 that allows for the placement of a speaker 71, which will be described later. Also, on the vehicle rear side of the first sunroof switch 51 and the second sunroof switch 52 of the switch group 34, a distance is provided that allows for the placement of a first microphone 72, a first microphone board 73, a second microphone 74, and a second microphone board 75, which will be described later.

[0038] <Switch board> The switch board 36 is provided inside the housing 31. The switch board 36 is supported, for example, on the surface of the base 32 on the rear surface 42 side. In other words, the switch board 36 is disposed inside the housing 31 on the rear surface 42 side. The switch board 36 is connected to the switch group 34 (i.e., a first sunroof switch 51, a second sunroof switch 52, a first light 53, a first light switch 54, a second light 55, a second light switch 56, and an emergency call switch 57).

[0039] Furthermore, the switch board 36 is connected to an indicator 38, which will be described later. The indicator 38 displays, for example, the open / closed state of the left side door 15 (see FIG. 1), the open / closed state of the right side door 16 (see FIG. 1), the on / off state of a headlight (not shown), etc. The switch substrate 36 has a first region 61 and a second region 62.

[0040] The first region 61 is formed in a rectangular shape extending in the vehicle width direction. The first region 61 is disposed, for example, at the center in the vehicle width direction and the center in the vehicle front-rear direction inside the housing 31. Therefore, the first region 61 is disposed on the hollow portion 45 side of the housing 31 with a gap between it and the side wall (peripheral wall) 31a of the housing 31. In particular, a space is provided on the vehicle front side of the first area 61 that allows for placement of a speaker 71, which will be described later. Also, a space is provided on the vehicle rear side of the first area 61 that allows for placement of a first microphone 72, a first microphone board 73, a second microphone 74, and a second microphone board 75, which will be described later.

[0041] In the first area 61, a first sunroof switch 51, a second sunroof switch 52, a first light 53, a first light switch 54, a second light 55, and a second light switch 56 are arranged. The second area 62 protrudes rearward from the rear side 61a of the first area 61 along the housing center 58. In the second area 62, an emergency call switch 57 is arranged.

[0042] The shape of the switch board 36 is not limited to that of the embodiment, and other shapes may be selected. For example, in the embodiment, an example is described in which the first region 61 of the switch board 36 is formed in a rectangular shape extending in the vehicle width direction, but the switch board 36 may be formed in a rectangular shape extending in the vehicle front-rear direction, etc.

[0043] <Sound equipment> The acoustic device 40 is a communication device that enables wireless communication between an external device and a vehicle interior 11 (see FIG. 1) in a so-called hands-free manner. The acoustic device 40 includes, for example, a speaker 71, a first microphone 72, a first microphone board 73, a second microphone 74, and a second microphone board 75. In the embodiment, an example is described in which the acoustic device 40 is equipped with two microphones, the first microphone 72 and the second microphone 74, but as another example, the acoustic device 40 may be equipped with one microphone, for example.

[0044] <Speaker> FIG. 5 is a conceptual diagram illustrating the specifications of the acoustic device 40 of the embodiment, in which the switch board 36, the speaker 71, the first microphone board 73, and the second microphone board 75 are connected. 2, 4, and 5, speaker 71 is a component that outputs sound and the like, and has a diaphragm provided on a front surface 71a (surface facing vehicle interior 11). Speaker 71 is provided inside housing 31. Speaker 71 is disposed so that a center line 77 extending in the thickness direction (hereinafter, sometimes referred to as speaker center line 77) extends in the thickness direction of housing 31 and is substantially perpendicular to surface 43a of surface portion 43.

[0045] The speaker 71 has a speaker center line 77 positioned at the housing center 58 and is located rearward of the vehicle relative to the first region 61 of the switch board 36. The speaker 71 is also disposed on the surface portion 43 of the housing 31. In other words, the speaker 71 is located forward of the vehicle relative to the first region 61 of the switch board 36 in the center in the vehicle width direction, and is disposed on the surface portion 43. In this state, the speaker 71 is provided on the surface portion 43 with the front surface 71a facing the speaker opening 78. The speaker 71 is separably connected to the switch board 36 in a disconnected state.

[0046] <1st microphone> The first microphone 72 converts sound into an electrical signal and is, for example, an omnidirectional MEMS (Micro Electronics Mechanical System) microphone. The first microphone 72 is provided inside the housing 31. The first microphone 72 is disposed so that a first microphone center line 81 extending in the thickness direction thereof extends in the thickness direction of the housing 31 and is substantially perpendicular to the surface 43a of the surface portion 43.

[0047] The first microphone 72 is located such that the first microphone center line 81 is on the left side of the housing center 58 (specifically, the second region 62 of the switch board 36) in the vehicle width direction, and is located rearward of the vehicle with respect to the first region 61 of the switch board 36. The first microphone 72 is also disposed on the surface portion 43 of the housing 31 via a first microphone board 73, which will be described later. The first microphone 72 is disposed above and near the passenger seat 18 (see FIG. 1).

[0048] <First microphone board> The first microphone board 73 is located to the left of the second area 62 of the switch board 36 in the vehicle width direction, and is located to the rear of the vehicle with respect to the first area 61 of the switch board 36. The first microphone board 73 is formed, for example, in a rectangular shape, and is provided on the surface portion 43 opposite the first microphone opening 82. The first microphone 72 is attached to a surface 73a of the first microphone board 73 opposite to the surface 43a of the surface portion 43. The first microphone board 73 is separably connected to the switch board 36 in a disconnected state.

[0049] <Second microphone> The second microphone 74 converts sound into an electrical signal. As with the first microphone 72, the second microphone 74 is, for example, an omnidirectional MEMS (Micro Electronics Mechanical System) microphone. The second microphone 74 is provided inside the housing 31. Similar to the first microphone 72, the second microphone 74 is disposed so that a second microphone center line (not shown) extending in the thickness direction thereof extends in the thickness direction of the housing 31 and is substantially perpendicular to the surface 43a of the surface portion 43.

[0050] The second microphone 74 is located such that its center line is on the right side of the housing center 58 (specifically, the second region 62 of the switch board 36) in the vehicle width direction, and is located rearward of the vehicle with respect to the first region 61 of the switch board 36. The second microphone 74 is also disposed on the surface portion 43 of the housing 31 via a second microphone board 75, which will be described later. The second microphone 74 is disposed above and near the driver's seat 17 (see FIG. 1).

[0051] <Second microphone board> The second microphone board 75 is located to the right of the second region 62 of the switch board 36 in the vehicle width direction, and is located to the rear of the vehicle with respect to the first region 61 of the switch board 36. The second microphone board 75 is formed, for example, in a rectangular shape, and is provided on the surface portion 43 opposite a second microphone opening (not shown). A second microphone 74 is attached to a surface (not shown) of the second microphone board 75 opposite to the surface 43a of the surface portion 43. The second microphone board 75 is separably connected to the switch board 36 in a disconnected state.

[0052] As described above, according to the operation module with audio device 20 of the embodiment, the switch group 34 is disposed at the center inside the housing 31. Furthermore, the speaker 71 is disposed at the center in the vehicle width direction, forward of the vehicle with respect to the first area 61 of the switch board 36 (i.e., the switch group 34). In addition, the first microphone 72 and the first microphone board 73 are disposed to the left of the second area 62 of the switch board 36 in the vehicle width direction, and rearward of the vehicle with respect to the first area 61 of the switch board 36 (i.e., the switch group 34). Further, the second microphone 74 and the second microphone board 75 are disposed to the right of the second area 62 of the switch board 36 in the vehicle width direction, and rearward of the first area 61 of the switch board 36 (that is, the switch group 34).

[0053] In this way, by arranging the switch group 34 in the center of the housing 31, it is possible to avoid impairing the usability of the first sunroof switch 51, the second sunroof switch 52, the first lighting switch 54, and the second lighting switch 56 provided in the switch group 34. Furthermore, it is possible to avoid impairing the usability of the emergency call switch 57 provided in the switch group 34.

[0054] Furthermore, the speaker 71 is disposed in front of the vehicle relative to the switch group 34, and the first microphone 72 is disposed in rear of the vehicle relative to the switch group 34. That is, the speaker 71 and the first microphone 72 can be disposed apart from each other on both sides (both ends) of the switch group 34, that is, on the front side and the rear side of the vehicle. Therefore, a sufficient distance can be secured between the speaker 71 and the first microphone 72. Furthermore, the second microphone 74 is disposed rearward of the vehicle relative to the switch group 34. That is, the speaker 71 and the second microphone 74 can be disposed apart from each other on both sides (both ends) of the switch group 34, one on the front side and the other on the rear side of the vehicle. This allows a sufficient distance to be secured between the speaker 71 and the second microphone 74.

[0055] This allows a sufficient distance to be secured between the speaker 71 and the first microphone 72, and a sufficient distance to be secured between the speaker 71 and the second microphone 74, without impairing the usability of each switch in the switch group 34. This ensures good call quality when making audio calls with an external device using the audio device 40. In addition, the housing 31 placed on the roof 14 can be made compact.

[0056] Furthermore, the switch group 34 and the sound device 40 are integrated into the operation module 20. Thus, by providing the operation module 20 on the roof 14, the switch group 34 and the sound device 40 can be provided at the same time.

[0057] In the embodiment, the speaker 71 and the first microphone 72 are disposed apart from each other on both sides of the front and rear of the vehicle, sandwiching the switch group 34 therebetween, but this is not limiting. As another example, the speaker 71 and the first microphone 72 may be disposed apart from each other on both sides of the right and left in the vehicle width direction, sandwiching the switch group 34 therebetween. Furthermore, the speaker 71 and the second microphone 74 may be disposed apart from each other on both sides of the right and left in the vehicle width direction, sandwiching the switch group 34 therebetween.

[0058] Additionally, omnidirectional microphones are used for the first microphone 72 and the second microphone 74. This allows the first microphone 72 and the second microphone 74 to be used not only for voice calls but also as sound pickup microphones for ANC (active noise cancellation, active noise control).

[0059] Furthermore, the speaker 71 is disposed in front of the vehicle relative to the first area 61 of the switch board 36, and the first microphone 72 is disposed in rear of the vehicle relative to the first area 61 of the switch board 36. Therefore, the speaker 71 and the first microphone 72 can be disposed on both sides (both ends) of the first area 61 of the switch board 36, one on the front side and the other on the rear side of the vehicle. In other words, a sufficient distance can be secured between the speaker 71 and the first microphone 72. Furthermore, the second microphone 74 is disposed rearward of the vehicle relative to the first area 61 of the switch board 36. Therefore, the speaker 71 and the second microphone 74 can be disposed on both sides (both ends) of the first area 61 of the switch board 36, one on the front side of the vehicle and the other on the rear side of the vehicle. In other words, a sufficient distance can be secured between the speaker 71 and the second microphone 74.

[0060] This allows the housing 31 placed on the roof 14 to be compact while ensuring a sufficient distance between the speaker 71 and the first microphone 72 and a sufficient distance between the speaker 71 and the second microphone 74.

[0061] Additionally, speaker 71 is separably connected to switch board 36 in a disconnected state. Also, first microphone board 73 is separably connected to switch board 36 in a disconnected state. Furthermore, second microphone board 75 is separably connected to switch board 36 in a disconnected state. Therefore, the connections of switch board 36, first microphone board 73, and second microphone board 75 can be flexibly adapted to suit, for example, the equipment specifications of vehicle Ve, the destination of vehicle Ve, and laws and regulations.

[0062] In this way, by connecting the speaker 71, the first microphone board 73, and the second microphone board 75 to the switch board 36 in a detachable, non-connected state, the acoustic device 40 can be made expandable. The expandability of the acoustic device 40 will be described in detail based on first to third modified examples shown in FIGS.

[0063] Here, for example, if first microphone board 73, second microphone board 75, and speaker 71 are integrally formed on switch board 36, switch board 36 is disposed close to surface portion 43. This makes it difficult to suppress vibration noise caused by interference between switch board 36 and surface portion 43, and further makes it difficult to ensure the durability of switch board 36.

[0064] Therefore, switch board 36 is disposed on the rear surface portion 42 side inside housing 31. Furthermore, first microphone board 73 is provided on surface portion 43 facing first microphone opening 82. In addition, second microphone board 75 is provided on surface portion 43 facing a second microphone opening (not shown). Furthermore, speaker 71 is provided on surface portion 43 facing speaker opening 78.

[0065] Therefore, the switch board 36 can be separated from the first microphone board 73, the second microphone board 75, and the speaker 71 and separated from the surface portion 43. This makes it possible to suppress vibration noise caused by interference between the switch board 36 and the surface portion 43 compared to when the first microphone board 73, the second microphone board 75, and the speaker 71 are integrally formed on the switch board 36. Furthermore, by suppressing interference between the switch board 36 and the surface portion 43, the durability of the switch board 36 can be improved.

[0066] First to third modified examples of the acoustic device 40 will be described below with reference to Figures 6 to 8. In the first to third modified examples, the same or similar components as those in the acoustic device 40 of the embodiment are denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

[0067] [First Modification] FIG. 6 is a conceptual diagram illustrating the specifications of the acoustic device 100 of the first modified example, in which the switch board 36, the first microphone board 73, and the second microphone board 75 are connected. 6, in the acoustic device 100 of the first modified example, a first microphone board 73 and a second microphone board 75 are connected to the switch board 36. That is, compared to the acoustic device 40 of the embodiment, the acoustic device 100 is configured with specifications in which the speaker 71 is separated and not connected to the switch board 36. Here, in the acoustic device 40 of the embodiment, the speaker 71 is connected to the switch board 36 in a detachable, disconnected state. Therefore, the acoustic device 100 of the first modified example can be easily configured based on the acoustic device 40 of the embodiment.

[0068] [Second Modification] FIG. 7 is a conceptual diagram illustrating the specifications of an acoustic device 110 of the second modified example, in which a switch board 36, a speaker 71, and a first microphone board 73 are connected. 7, in the acoustic device 110 of the second modified example, a speaker 71 and a first microphone board 73 are connected to the switch board 36. That is, compared to the acoustic device 40 of the embodiment, the acoustic device 110 is configured with specifications in which the second microphone board 75 is separated and not connected to the switch board 36. Here, in the acoustic device 40 of the embodiment, the second microphone board 75 is separably connected in a disconnected state to the switch board 36. Therefore, the acoustic device 110 of the second modified example can be easily configured based on the acoustic device 40 of the embodiment.

[0069] [Third Modification] FIG. 8 is a conceptual diagram illustrating the specifications of an acoustic device 120 according to the third modified example in which the switch board 36 and the first microphone board 73 are connected. 8, in an audio device 120 of the third modified example, a first microphone board 73 is connected to a switch board 36. That is, compared to the audio device 40 of the embodiment, the audio device 40 is configured with specifications in which the speaker 71 and the second microphone board 75 are separated and not connected to the switch board 36. Here, in the acoustic device 40 of the embodiment, the speaker 71 and the second microphone board 75 are separably connected in a disconnected state to the switch board 36. Therefore, the acoustic device 120 of the second modified example can be easily configured based on the acoustic device 40 of the embodiment.

[0070] In this way, in the acoustic device 40 of the embodiment, the speaker 71, the first microphone board 73, and the second microphone board 75 are separably connected in a disconnected state to the switch board 36. Therefore, in addition to the specifications of the acoustic device 40 of the embodiment, it is possible to easily accommodate the specifications of, for example, the acoustic device 100 of the first modified example, the acoustic device 110 of the second modified example, the acoustic device 120 of the third modified example, etc. This allows the connection of the switch board 36, the first microphone board 73, and the second microphone board 75 to be flexibly adapted to suit, for example, the equipment specifications of the vehicle Ve, the destination of the vehicle Ve, and laws and regulations, making the acoustic device 40 of the embodiment extensible.

[0071] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0072] In addition, within the scope of the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described modifications may be combined as appropriate. [Explanation of symbols]

[0073] Vehicle 14 Roof 20 Operation module with sound device (operation module) 31 Case 34 Switches 36 Switch board (board) 40,100,110,120 Sound equipment 42 Rear part 43 Surface part 51 Sunroof switch No. 1 (one of several switches) 52 Second sunroof switch (one of several switches) 53 No. 1 Lighting 54 First light switch (one of several switches) 55 Second Lighting 56 Second light switch (one of several switches) 57 Emergency call switch (one of several switches) 71 Speaker 72 1st microphone (microphone) 73 First microphone board (microphone board) 74 Second microphone (microphone) 75 Second microphone board (microphone board)

Claims

1. a housing attached to the roof at the front of the vehicle and at the center in the vehicle width direction; a switch group configured with a plurality of vehicle-related switches and provided inside the housing; a speaker provided inside the housing; a microphone provided inside the housing, The switch group is disposed inside the housing at a center in the vehicle width direction and at a center in the vehicle front-rear direction, The speaker and the microphone are arranged on both sides of the switch group in the front-rear direction of the vehicle body. the speaker is disposed in front of the vehicle with respect to the group of switches; The microphone is disposed rearward of the vehicle relative to the group of switches. An operation module with an acoustic device.

2. The microphone is an omnidirectional microphone.

2. The operation module with an acoustic device according to claim 1.

3. A substrate for connecting the group of switches is provided in the center of the interior of the housing.

3. The operation module with an acoustic device according to claim 1 or 2.

4. The housing further includes a microphone board on which the microphone is attached, the microphone board and the speaker are separably connected to a board that connects the group of switches; 4. The operation module with an acoustic device according to claim 1.

5. the housing is configured with a back portion attached to the roof side and a front portion facing the back portion, the circuit board connecting the switches is disposed on the rear side of the housing, The microphone board and the speaker are disposed on the surface portion of the housing.

5. The operation module with an acoustic device according to claim 4.

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