Interior structure of vehicle

Abstract

To provide an interior structure of a vehicle.SOLUTION: An interior structure of a vehicle includes a roof console 10 and an exciter 40. The roof console 10 is disposed on a ceiling portion inside a vehicle cabin. The exciter 40 generates vibrations according to an acoustic signal. The roof console 10 includes: a console main body 13 in which input and output devices are mounted; and a console panel 14 made of a hard resin to cover a side of the console main body 13 that faces an inside of the vehicle cabin. The exciter 40 is mounted on the console panel 14.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an interior structure of a vehicle provided with an acoustic exciter on the ceiling part.

Background Art

[0002] In recent years, in order to improve the acoustic environment inside a vehicle, vehicles have been proposed in which sound sources such as speakers are installed at multiple locations inside the vehicle cabin. However, the locations where sound sources can be installed inside the vehicle are limited to the inside of the side door, pillars, etc., and securing locations for installing sound sources that can form a good acoustic space has become an issue.

[0003] As a countermeasure against this, an exciter (sound exciter) is installed on the ceiling part inside the vehicle, and by the generated vibration of the exciter, a dedicated support plate installed on the ceiling part or the interior material itself is vibrated (see, for example, Patent Documents 1 and 2).

[0004] The interior structure of the vehicle described in Patent Document 1 has a support plate installed on the back side (upper side) of the interior material of the ceiling part, and an exciter is attached to the support plate. In this interior structure, the exciter vibrates the support plate by the generated vibration, and acoustic vibrations are made to resonate in the interior at the ceiling part. For this reason, in this interior structure, a dedicated diaphragm (cone) becomes unnecessary, and the sound source does not greatly compress the interior space.

[0005] The interior structure of the vehicle described in Patent Document 2 has an exciter attached via a coupler to the lower surface of the interior material of the ceiling part made of urethane, foamed resin, etc. In this interior structure, the exciter vibrates the interior material itself by the generated vibration, and acoustic vibrations are made to resonate in the interior at the ceiling part. Also in this case, since a dedicated diaphragm (cone) becomes unnecessary, the sound source does not greatly compress the interior space.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] However, in the interior structure of the vehicle described in Patent Document 1, since the support plate that is vibrated by the generated vibration of the exciter is installed on the back side (upper side) of the interior material of the ceiling portion, the interior material hinders the transmission of acoustic vibration from the support plate to the interior space, and the acoustic vibration of the support plate cannot be efficiently transmitted to the interior of the vehicle.

[0008] Further, in the interior structure of the vehicle described in Patent Document 2, since the object to be vibrated by the generated vibration of the exciter is the interior material of the ceiling portion made of urethane, foamed resin, etc., although the vibrating portion faces directly into the interior of the vehicle, it is difficult to obtain high-quality acoustic vibration due to the material characteristics of the interior material.

[0009] Therefore, the present invention aims to provide an interior structure of a vehicle that can suppress the sound source from greatly compressing the interior space and can cause high-quality acoustic vibration in the ceiling portion. [Means for Solving the Problems]

[0010] In order to solve the above problems, the interior structure of a vehicle according to the present invention adopts the following configuration. That is, the interior structure of a vehicle according to the present invention includes a roof console (for example, roof console 10 in the embodiment) disposed in the ceiling portion of the vehicle interior, and an exciter (for example, exciter 40 in the embodiment) that generates vibration according to an acoustic signal, and the roof console includes a console body (for example, console body 13 in the embodiment) on which input / output devices are mounted, and a console panel (for example, console panel 14 in the embodiment) made of a hard resin that covers the side of the console body facing the vehicle interior, and the exciter is characterized in that it is attached to the console panel.

[0011] With the above configuration, the exciter is attached to the console panel that directly faces the passenger compartment at the ceiling portion. The vibration generated by the exciter vibrates the console panel made of a hard resin, and the vibration is transmitted to the space inside the vehicle. As a result, the sound source does not greatly compress the interior space, and it becomes possible to cause high-quality acoustic vibrations to resonate at the ceiling portion.

[0012] It is desirable that the exciter be attached to the upper surface of a substantially flat plate portion (for example, the rear extension region 14r in the embodiment) of the console panel.

[0013] In this case, since the exciter is attached to the upper surface side of the console panel, the exciter does not protrude more toward the inside of the vehicle than the console panel. Further, since the exciter is attached to the substantially flat plate portion of the console panel, it becomes possible to vibrate the substantially flat plate portion well by the vibration generated by the exciter. Therefore, when this configuration is adopted, it becomes possible to obtain higher-quality acoustic vibrations.

[0014] The exciter may be attached to a free end region (for example, the rear extension region 14r in the embodiment) of the console panel that is not fixed to either the roof panel of the vehicle body (for example, the roof panel 2 in the embodiment) or the console main body.

[0015] In this case, since the exciter is attached to the free end region of the console panel, the acoustic vibration portion of the console panel is less likely to be strongly constrained from the surroundings, and it becomes possible to obtain better acoustic vibrations.

[0016] The free end region may be formed such that the outer edge portion is substantially arc-shaped in a top view, and the exciter may be arranged at a position separated from the substantially arc-shaped outer edge portion.

[0017] In this case, the vibration generated by the exciter can be efficiently transmitted to the vicinity of the center of the free end region of the console panel. Therefore, when this configuration is adopted, better acoustic vibration can be obtained.

[0018] The exciter includes a voice coil (for example, the voice coil 41 in the embodiment) that converts a signal current into vibration, and the middle part of the wiring connected to the voice coil may be fixed to the roof panel of the vehicle body (for example, the roof panel 2 in the embodiment).

[0019] In this case, different from the case where the middle part of the wiring connected to the voice coil is fixed to the console panel, since the middle part of the wiring does not contact the console panel, the good acoustic vibration of the console panel is not inhibited by the wiring.

[0020] The exciter is preferably arranged at a substantially central position in the vehicle width direction above the front seat in the vehicle interior.

[0021] In this case, it becomes possible to make the vibration generated by the exciter sound evenly in the left - right direction in the vehicle interior. Therefore, when this configuration is adopted, better acoustic vibration can be obtained.

[0022] The roof console includes an emergency switch (for example, the emergency switch 15 in the embodiment) that is pushed upward in an emergency, and the emergency switch may be arranged at a position recessed upward with respect to the substantially flat plate portion of the console panel to which the exciter is attached.

[0023] In this case, the arrangement portion of the emergency switch that is easily touched by the finger of the occupant for position confirmation and the like is recessed upward with respect to the substantially flat plate portion of the console panel. Therefore, even if the peripheral portion of the emergency switch is touched by the finger of the occupant when the substantially flat plate portion of the console panel is acoustically vibrating as a diaphragm, it is difficult for the good acoustic vibration of the substantially flat plate portion of the console panel to be suppressed by the contact of the finger.

[0024] The roof console further includes a camera (for example, camera 30 of the embodiment) that images the interior of the vehicle and a map lamp (for example, map lamp 12 of the embodiment) that irradiates the vicinity of the front seats in the vehicle interior. It is desirable that the camera, the map lamp, and the exciter be arranged in this order from the front of the vehicle on the roof console.

[0025] In this case, since the camera is arranged on the front end side of the roof console, a wider range of the interior of the vehicle can be imaged. Also, the map lamp can be arranged substantially above the front seats, and the exciter can be arranged at a position close to both the front seats and the rear seats in the interior. As a result, the map lamp is arranged at a position that is easy for the passengers in the front seats to use, and the exciter can cause good acoustic vibrations on both the front seat side and the rear seat side.

Effect of the Invention

[0026] In the interior structure of the vehicle according to the present invention, since the exciter is attached to the console panel that directly faces the interior of the vehicle at the ceiling portion, the console panel made of a hard resin is vibrated well by the vibration generated by the exciter, and the Vibration can be made to resonate in the interior space. Therefore, when the interior structure of the vehicle according to the present invention is adopted, it is possible to suppress the sound source from greatly compressing the interior space, and it is possible to cause good acoustic vibrations at the ceiling portion.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Best Mode for Carrying Out the Invention

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, an arrow FR indicating the front of the vehicle, an arrow UP indicating the upper side of the vehicle, and an arrow LH indicating the left side of the vehicle are shown.

[0029] FIG. 1 is a plan view of the vehicle 1 according to the embodiment, and FIG. 2 is a perspective view of the ceiling portion of the interior of the vehicle 1 as viewed from the lower rear side. Reference numeral 2 in FIG. 1 is the roof panel of the vehicle 1, and reference numerals 3f and 3r are the front seat and the rear seat installed in the interior of the vehicle 1. Reference numeral 10 in FIG. 2 is a roof console disposed in the central region in the vehicle width direction of the ceiling portion above the front seat in the vehicle interior, and reference numeral 11 is a sun visor disposed above the front seat of the ceiling portion in the interior.

[0030] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 4 is a top view of the roof console 10. As shown in FIGS. 3 and 4, the roof console 10 includes a console main body 13 and a plate-shaped console panel 14 that covers the vehicle interior side of the console main body 13. The console main body 13 has operating devices (such as a switch mechanism and an operating circuit) of input / output devices such as a map lamp 12 and an emergency switch 15 (see FIGS. 2 and 3) mounted in a housing made of resin or metal. The console panel 14 is formed of a high-density hard resin.

[0031] As shown in FIG. 4, the shape of the upper surface of the console panel 14 is a shape in which a substantially semi-circular shape is combined with one side of a substantially square shape. The substantially square portion of the console panel 14 is disposed on the vehicle front side, and the substantially semi-circular portion is disposed on the vehicle rear side. Hereinafter, for convenience of explanation, the portion having a square shape in top view is referred to as a "main portion region 14m", and the portion having a substantially semi-circular shape in top view is referred to as a "rear extension region 14r".

[0032] The console main body 13 and the console panel 14 are fixed to the roof panel 2 by means of clip fixing, bolt fastening, etc. in the central region in the vehicle width direction of the ceiling part of the interior. The roof panel 2 is composed of a roof panel outer 2o and a roof panel inner 2i that are joined to each other to form a closed cross-sectional structure. The console main body 13 and the console panel 14 are fixed to the roof panel inner 2i.

[0033] Also, as shown in FIG. 2, roof linings 4A, 4B (interior materials) made of urethane, foamed resin, etc. are arranged in the peripheral region of the console panel 14 in the ceiling part. The lower surface of the console panel 14 is exposed to the interior side through the opening 5 of the roof lining 4A.

[0034] In the main part region 14m of the console panel 14, a recessed part 16 is formed in which the central region is recessed upward with respect to the peripheral edge. The shape of the recessed part 16 when viewed from below is a substantially similar shape that reduces the outer shape of the console panel 14. That is, the shape of the recessed part 16 when viewed from below is a shape in which a substantially semi-circular part is combined with the side on the rear side of the substantially square part. An inclined surface that slopes upward from the front side of the vehicle to the rear side is provided on the front side of the substantially square part of the recessed part 16. An opening 17 (see FIG. 3) is formed in this inclined surface part, and a cover glass 32 (transparent resin panel) that covers the front (rear side of the vehicle) of the imaging part 31 (lens) of the camera 30 described later is attached to the opening 17.

[0035] On the upper wall 16u (the wall that becomes the bottom of the recess) of the recessed part 16, the operation part of the above-mentioned emergency switch 15 is arranged. The operation part of the emergency switch 15 is arranged through the upper wall 16u of the recessed part 16, and the switch main body part (not shown) on the console main body 13 side can be operated. The emergency switch 15 turns on the switch main body part by pushing the operation part upward. The emergency switch 15 is connected, for example, to an emergency support center or the like by communication when the switch main body part is turned on.

[0036] Also, as shown in FIG. 2, the peripheral portion of the recess 16 of the console panel 14 is a first base wall 18 that surrounds the recess 16 in a substantially U shape. The lower surface of the first base wall 18 is formed to be substantially flat. A second base wall 19, which is slightly higher in height than the lower surface of the first base wall 18, is disposed in the peripheral portion of the first base wall 18. The second base wall 19 is formed so as to surround the outside of the first base wall 18 in a substantially U shape. A front base wall 20, whose lower surface is substantially at the same height as the lower surface of the first base wall 18, is disposed on the vehicle front side of the first base wall 18 and the second base wall 19.

[0037] As shown in FIG. 2, on the front and rear extending portions on one side and the other side in the vehicle width direction of the substantially U-shaped first base wall 18, the light emitting portions 12a of the map lamps 12 for the driver's seat and the passenger seat are respectively disposed. Each light emitting portion 12a is capable of irradiating light below the driver's seat side and the passenger seat side respectively. In the present embodiment, the lower surfaces of the left and right front and rear extending portions of the first base wall 18 are the arrangement surfaces of the light emitting portions 12a of the map lamp 12. The recess 16 of the console panel 14 is formed to be recessed upward with respect to the arrangement surface of the light emitting portion 12a.

[0038] As shown in FIGS. 3 and 4, a camera 30 for indoor imaging is disposed at the front end position (vehicle front side position) in the recess 16 of the console panel 14. The camera 30 is fixedly installed on the roof panel 2, the console body 13, etc. via a bracket (not shown).

[0039] Here, the imaging unit 31 of the camera 30 is disposed such that the imaging direction faces the lower rear side of the vehicle interior through the opening 17 at the front of the recess 16 of the console panel 14. Also, at least the central position on the front side of the imaging unit 31 of the camera 30 (the central position on the front surface of the lens) is disposed above the lower surface of the first base wall 18 of the console panel 14 described above. Also, the central position on the front side of the imaging unit 31 of the camera 30 (the central position on the front surface of the lens) is disposed above the light emitting portion 12a of the map lamp 12 disposed on the first base wall 18. Also, the lower end of the imaging unit 31 of the camera 30 is positioned above the lower end of the light emitting portion 12a of the map lamp 12.

[0040] On the upper surface side of the curved shape portion on the rear side of the substantially U-shaped first base wall 18, as shown in FIGS. 3 and 4, an exciter 40 (sound exciter) is installed. The exciter 40 is attached to the upper surface of the substantially semicircular rear extension region 14r of the console panel 14. The exciter 40 includes a voice coil 41 that generates vibrations upon receiving a signal current input from the outside and a magnetic circuit (not shown). The vibrations generated by the exciter 40 cause the substantially flat portion (mainly the rear extension region 14r) of the console panel 14 to vibrate as a diaphragm. Thus, the vibrations generated in the substantially flat portion of the console panel 14 become acoustic vibrations and are transmitted to the space inside the vehicle cabin.

[0041] Also, as shown in FIG. 3, wirings 42a, 42b such as signal wirings drawn from the voice coil 41 of the exciter 40 are fixed to the lower surface of the roof panel 2 (roof panel inner 2i) via fixing clips 43 or the like at an intermediate portion thereof.

[0042] FIG. 5 is a perspective view of a portion of the roof console 10 corresponding to the V arrow view of FIG. 4. As shown in FIG. 5, locking claws 21a, 21b project from the front surface and the front side surface of the housing of the console body 13, respectively. Further, engaging pieces 22a, 22b project at positions corresponding to the locking claws 21a, 21b on the console body 13 side in the main region 14m of the console panel 14. Each engaging piece 22a, 22b projects upward from the upper surface of the console panel 14, and an engaging hole 23 penetrating in the plate thickness direction is formed in the protruding portion thereof. The locking claws 21a, 21b on the console body 13 side are engaged with the engaging holes 23 of the corresponding engaging pieces 22a, 22b on the console panel 14 side. The front portion of the main region 14m of the console panel 14 is fixed to the console body 13 by engaging the locking claws 21a, 21b with the corresponding engaging holes 23.

[0043] Further, as shown in FIGS. 3 and 4, resin-made fixing clip portions 24 project from the upper surfaces on the left and right of the front side of the console main body 13. These fixing clip portions 24 are fitted into fixing holes (not shown) formed in the roof panel 2 (roof panel inner 2i). The front side of the console main body 13 is thereby fixed to the roof panel 2 (roof panel inner 2i).

[0044] Further, a pair of support protrusions 25 that project upward from the upper surface of the console panel 14 project at positions spaced apart from each other on the left and right of the rear portion of the main region 14m of the console panel 14. Resin-made fixing clip portions 26 project from the upper portions of the respective support protrusions 25. These fixing clip portions 26 are fitted into fixing holes (not shown) formed in the roof panel 2 (roof panel inner 2i). The left and right rear portions of the main region 14m of the console panel 14 are thereby fixed to the roof panel 2 (roof panel inner 2i).

[0045] Here, although the front and rear of the main region 14m of the console panel 14 are fixed to the console main body 13 and the roof panel 2 (roof panel inner 2i) as described above, the rear extension region 14r having a substantially semicircular top view is not fixed to the console main body 13 or the roof panel 2. That is, the substantially flat rear extension region 14r to which the exciter 40 is attached is a free end not restricted by the console main body 13 or the roof panel 2.

[0046] Further, TOF (Time Of Flight) cameras 50 for acquiring distance information to a subject are arranged at positions on the left and right sides of the upper surface of the console main body 13 fixed to the upper surface of the main region 14m of the console panel 14. The TOF camera 50 irradiates an imaging target with infrared light and can recognize the shape and behavior of the subject by calculating the time until the infrared light returns. The TOF cameras 50 arranged on the left and right sides of the console main body 13 are installed so as to be able to identify the faces and behaviors of the passengers sitting in the driver's seat and the passenger seat, respectively. Note that reference numeral 51 in Fig. 2 is an infrared light input / output window provided at an outer position in the vehicle width direction of the light emitting portions 12a of the left and right map lamps 12 in the console panel 14. A cover that allows the transmission of infrared light is attached to the input / output window 51.

[0047] As described above, in the interior structure of the vehicle of this embodiment, the exciter 40 is attached to the console panel 14 made of hard resin that directly faces the interior of the vehicle in the ceiling portion. Therefore, the vibration generated by the exciter 40 vibrates the console panel 14 made of hard resin, and the vibration can be favorably transmitted to the interior space. Therefore, when the interior structure of the vehicle of this embodiment is adopted, it is possible to suppress the sound source from greatly compressing the interior space, and good quality acoustic vibration can be generated in the ceiling portion.

[0048] Also, in this embodiment, the exciter 40 is attached to the upper surface of the rear extension region 14r, which is a substantially flat plate portion of the console panel 14. Therefore, the exciter 40 attached to the console panel 14 does not protrude more inward than the console panel 14, and the vibration generated by the exciter 40 can vibrate the substantially flat plate portion of the console panel 14 favorably. Therefore, when this configuration is adopted, it is possible to obtain better quality acoustic vibration.

[0049] Also, in this embodiment, the exciter 40 is attached to the rear extension region 14r (free end region), which is a free end that is not fixed to either the roof panel 2 or the console body 13 in the console panel 14. Therefore, it becomes difficult for the main acoustic vibration portion (rear extension region 14r) of the console panel 14 to be strongly constrained from the surroundings. Therefore, when this configuration is adopted, better acoustic vibration can be obtained.

[0050] Furthermore, in the present embodiment, the outer edge of the rear extension region 14r of the console panel 14 is formed in a substantially arc shape, and the exciter 40 is attached at a position spaced apart from the substantially arc-shaped outer edge of the rear extension region 14r. Therefore, the vicinity of the center of the rear extension region 14r can be efficiently vibrated by the vibration generated by the exciter 40. Thus, when this configuration is adopted, better acoustic vibration can be obtained.

[0051] Also, in the interior structure of the vehicle of the present embodiment, the exciter 40 includes a voice coil 41 that converts a signal current into vibration, and the middle portions of the wirings 42a and 42b connected to the voice coil 41 are fixed to the roof panel 2 of the vehicle body. In this case, unlike the case where the middle portions of the wirings 42a and 42b connected to the voice coil 41 are fixed to the console panel 14, the good acoustic vibration of the console panel 14 is not inhibited by the wirings 42a and 42b. Thus, when this configuration is adopted, better acoustic vibration can be obtained.

[0052] Also, in the present embodiment, the exciter 40 is disposed at a substantially central position in the vehicle width direction above the front seat in the vehicle interior. Therefore, the vibration generated by the exciter 40 can be evenly transmitted in the left-right direction in the vehicle interior. Thus, when this configuration is adopted, a better acoustic environment can be created in the vehicle interior.

[0053] Furthermore, in the interior structure of the vehicle of the present embodiment, the emergency switch 15 is disposed in a recessed portion 16 that is recessed upward with respect to the rear extension region 14r of the console panel 14 where the exciter 40 is attached. Therefore, even if the peripheral portion of the emergency switch 15 is touched by the finger of the occupant when the rear extension region 14r (substantially flat plate portion) of the console panel 14 vibrates as a diaphragm, the good acoustic vibration of the rear extension region 14r (substantially flat plate portion) of the console panel 14 is less likely to be suppressed by the contact of the finger. Thus, when this configuration is adopted, a good acoustic environment can always be obtained.

[0054] In addition, in the interior structure of the vehicle according to this embodiment, a camera 30, a map lamp 12, and an exciter 40 are arranged in this order from the front of the vehicle on the roof console 10. For this reason, a wider range of the interior of the vehicle can be favorably imaged by the camera 30 arranged at the foremost part of the roof console 10, and light can be favorably irradiated toward the front seats by the map lamp 12 arranged on the rear side of the camera 30. Further, since the exciter 40 is arranged at a position close to both the front seats and the rear seats in the interior, it is possible to cause good acoustic vibration on both the front seat side and the rear seat side.

[0055] Note that the present invention is not limited to the above-described embodiment, and various design changes are possible without departing from the gist thereof. For example, in the above-described embodiment, the roof console 10 is provided with the camera 30, the map lamp 12, and the TOF camera 50 in addition to the exciter 40, but these are not necessarily essential and some of them may be omitted.

Description of Reference Numerals

[0056] 1…Vehicle 2…Roof Panel 10…Roof Console 12…Map Lamp (Input / Output Device) 13…Console Body 14…Console Panel 14…Rear Extension Region (Substantially Flat Plate Portion, Free End Region) 15…Emergency Switch (Input / Output Device) 40…Exciter 41…Voice Coil 42a, 42b…Wiring

Claims

1. A roof console disposed on the ceiling portion inside the vehicle cabin, and an exciter that generates vibrations according to an acoustic signal, characterized in that the roof console includes a console body on which input / output devices are mounted, and a console panel made of a hard resin that covers the side of the console body facing the inside of the vehicle cabin, and the exciter is attached to the console panel, for an interior structure of a vehicle.

2. The interior structure of a vehicle according to claim 1, characterized in that the exciter is attached to the upper surface of a substantially flat portion of the console panel.

3. The interior structure of a vehicle according to claim 2, characterized in that the exciter is attached to a free end region of the console panel that is not fixed to either the roof panel of the vehicle body or the console body.

4. The free end region has a substantially arc-shaped outer edge portion in a top view, and the interior structure of a vehicle according to claim 3, characterized in that the exciter is disposed at a position spaced apart from the substantially arc-shaped outer edge portion.

5. The exciter includes a voice coil that converts a signal current into vibrations, and The interior structure of a vehicle according to claim 1, characterized in that an intermediate portion of the wiring connected to the voice coil is fixed to the roof panel of the vehicle body.

6. The interior structure of a vehicle according to claim 1, characterized in that the exciter is disposed at a substantially central position in the vehicle width direction above the front seat inside the vehicle cabin.

7. The roof console includes an emergency switch that is pushed upward in an emergency, and the interior structure of a vehicle according to claim 2, characterized in that the emergency switch is disposed at a position recessed upward with respect to the substantially flat portion of the console panel to which the exciter is attached.

8. The roof console further includes a camera that images the interior of the vehicle cabin and a map lamp that irradiates the vicinity of the front seat inside the vehicle cabin, and The interior structure of a vehicle according to claim 1, characterized in that the camera, the map lamp, and the exciter are arranged in this order from the front of the vehicle on the roof console.

Images