JPH0582196U - In-vehicle speaker device - Google Patents

Abstract

(57) [Abstract] [Purpose] The acoustic output from an in-vehicle speaker is adjusted by a movable reflector so as to obtain an arbitrary reflected sound characteristic, and an optimum acoustic characteristic in a vehicle is created. [Structure] A movable reflection plate 6 is provided in the vicinity of a vehicle-mounted speaker 5 mounted inside a vehicle 1, or a sound absorbing material is attached to a reflection surface of the reflection plate 6, or the reflection plate 6 is an acoustic lens structure. It is formed and formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle-mounted speaker device, and more particularly to a vehicle-mounted speaker device suitable for adjusting an acoustic output from the vehicle-mounted speaker with a reflector.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, among vehicle-mounted speaker devices in which a plurality of vehicle-mounted speakers are mounted inside a vehicle, for example, a vehicle-mounted speaker mounted on a rear tray of the vehicle is a perspective view showing the rear part of the vehicle in FIGS. 6 and 7. Was provided a lot. In FIG. 6, reference numeral 1 denotes a vehicle, a rear tray 3 and a rear window 4 are formed on the rear surface of a rear seat 2 of the vehicle 1, and an embedded speaker 5 is mounted on the rear tray 3. Further, in FIG. 7, 7 is a speaker cabinet in which the speaker 5 is mounted, and the speaker cabinet 7 is fixed on the rear tray 3 of the vehicle 1.

Further, the mounting of the on-vehicle speaker is performed by mounting the on-vehicle speaker on the front (not shown) of the vehicle 1 or on the left and right doors (not shown) of the vehicle 1.

[0004]

[Problems to be solved by the device]

 However, there is a rear seat 2 and a rear window 4 near the vehicle-mounted speaker 5 mounted on the conventional rear tray 3 described above, and the acoustic output from the vehicle-mounted speaker 5 is reflected by the rear window 4 or the like to have an acoustic characteristic. Although it may worsen, the installation position of the vehicle-mounted speaker 5 on the rear tray 3 is limited by the rear seat 2 and the rear window 4, and there is a drawback in that the installation position cannot be adjusted to improve the acoustic characteristics. ..

Further, since the angle of the rear tray 3 to the rear window 4 is different depending on the vehicle type, there is a problem that it is difficult to unify the sound characteristics from the in-vehicle speaker 5 to determine a sound.

The present invention has been made in view of the above points, and an object thereof is to solve the drawbacks of the conventional example and to provide a movable reflector in the vicinity of a vehicle-mounted speaker to improve the acoustic characteristics. There is an in-vehicle speaker mount that can be adjusted.

[0007]

[Means for Solving the Problems]

 The mounting of the in-vehicle speaker of the present invention, in a plurality of in-vehicle speaker devices mounted in the vehicle, provides a movable reflector in the vicinity of the in-vehicle speaker, and the acoustic characteristics of the inside of the vehicle are improved by acoustic reflection of the reflector. It is configured to adjust. Further, a sound absorbing material may be attached to the reflection plate. Further, the reflector may be formed as an acoustic lens structure.

[0008]

[Action]

 According to the mounting of the in-vehicle speaker of the present invention, for example, a movable reflecting plate is provided between the rear window of the in-vehicle speaker mounted on the rear tray and the rear window, and the reflecting plate is formed in an arc shape in the upper surface direction of the in-vehicle speaker. Since it is formed so as to cover it, and this arc-shaped reflector can be movably adjusted to expand and contract up and down, the acoustic output from the on-vehicle speaker is adjusted by the reflected acoustic output reflected by the reflector. The acoustic characteristics can be set to the optimum state.

Further, a sound absorbing material may be attached to the reflecting plate to absorb the output sound in the peak frequency band of the acoustic output from the vehicle-mounted speaker to adjust the acoustic characteristics. Further, an acoustic lens structure may be formed by, for example, forming a slit on the reflection plate to effectively produce reflection of acoustic output from the vehicle-mounted speaker.

As described above, by setting the acoustic reflection output from the in-vehicle speaker according to the vehicle, it is possible to increase the effective sound field formation and the surround acoustic effect.

[0011]

【Example】

 An embodiment of mounting an on-vehicle speaker according to the present invention will be described with reference to FIGS. The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a perspective view showing an embodiment in which an embedded type vehicle-mounted speaker is mounted on a rear tray at the rear of the vehicle, FIGS. 2 to 4 are cross-sectional views of a main part, and FIG. 5 is a speaker cabinet. FIG. 9 is a perspective view of another embodiment in which a vehicle-mounted speaker is mounted on the vehicle.

In the figure, reference numeral 6 denotes a reflector provided on the back surface of the on-vehicle speaker 5. The reflector 6 is installed between the on-vehicle speaker 5 and the rear window 4, and has, for example, an arc shape as shown in the figure. Further, as shown in FIGS. 2 to 4, the reflecting plate 6 can be moved with the end portion of the vehicle-mounted speaker 5 as a fulcrum.

FIG. 2 is a cross-sectional view when the reflection plate 6 is set at a position approximately half above and below, FIG. 3 is a cross-sectional view when the reflection plate 6 is greatly extended in the upper surface direction, and FIG. FIG. 6 is a cross-sectional view when the reflector plate 6 is stretched and the upper surface thereof is set small. In this way, the reflector plate 6 can be moved and set to any vertical position.

In this way, the movable reflection plate 6 is set at the back position of the in-vehicle speaker 5, and the acoustic output of the in-vehicle speaker 5 is set to the acoustic reflection characteristic depending on the set position of the movable reflection plate 6. Can be adjusted. That is, the reflected sound from the vehicle-mounted speaker 5 is not reflected by the unadjustable rear window 4 but is reflected by the adjustable reflector plate 6, and the optimum acoustic characteristics in the vehicle can be created by adjusting the reflected sound. You can listen to in-vehicle music with the best sound.

Further, by notifying the user of the best position of the reflector plate 6 which is predetermined according to the vehicle type, anyone can easily obtain the best reflected acoustic characteristics. Further, when an offensive peak sound included in the reproduced sound from the in-vehicle speaker 5 is generated, a sound absorbing material that absorbs the peak sound, such as glass wool, is absorbed by the reflective surface of the movable reflection plate 6. By sticking the material, it is possible to reduce the output of peak sound and enable proper reproduction.

Further, in order to effectively reflect the acoustic output, for example, a slit is provided in the reflecting plate 6, and the reflecting plate 6 has an acoustic lens structure to reverse the reflected sound of the acoustic output from the in-vehicle speaker 5. Can be emphasized, and can be tailored to the preference of the user listening to the acoustic characteristics inside the vehicle.

Furthermore, the reflector plate 6 may be formed in various shapes such as a semi-circular shape, a hemispherical shape, or a box shape so as to maximize the reflection effect of the acoustic output. Diversification of power can be achieved.

In FIG. 5, the movable reflector 6 is provided on the vehicle-mounted speaker 5 mounted on the speaker cabinet 7 in the same manner as described above, and the same effect as described above is obtained. Further, generally, many speaker systems in which an illumination display is provided on the back surface of the speaker cabinet 7 are provided, but it is also possible to provide a similar illumination display on the back surface portion of the reflection plate 6 described above. It is also possible to provide an illumination display attachment inside 6 to display the information for the occupants inside the vehicle.

The movable reflection plate 6 described above can be removed when unnecessary, and thus the user can enjoy the diversification of the in-vehicle speaker system. As described above, the reflection plate 6 is provided on the in-vehicle speaker 5 mounted on the rear tray 3 inside the vehicle 1, but the reflection plate 6 of the present invention can be applied to a front speaker other than the rear tray 3. Is.

[0020]

[Effect of the device]

 As described above, in the mounting of the in-vehicle speaker according to the present invention, the reflector which can be arbitrarily adjusted is provided in the vicinity of the in-vehicle speaker, so that the reflected sound from the in-vehicle speaker can be adjusted to the reflection characteristic of the optimum acoustic output. There is an effect that you can.

There is also an effect that a sound absorbing material or the like can be attached to the reflecting surface of the reflecting plate to absorb the peak of the reproduced sound. Furthermore, an acoustic lens structure is formed on the reflecting plate to provide a reflection sound effect. It also has the effect of creating a new in-vehicle sound field and increasing the effects of surround sound output and sound output by DSP signal processing of audio equipment.

In addition, it has excellent features such as a simple structure and easy implementation because it can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of an in-vehicle speaker device according to the present invention.

FIG. 2 is a sectional view of the reflecting plate of the present invention when it is set at a substantially central position in a vertical direction.

FIG. 3 is a cross-sectional view when the reflector in the upper surface direction of the present invention is set large.

FIG. 4 is a cross-sectional view when the reflector in the upper surface direction of the present invention is set small.

FIG. 5 is a perspective view of an essential part showing another embodiment of the present invention.

FIG. 6 is a perspective view of an essential part showing mounting of a vehicle-mounted speaker of a conventional example.

FIG. 7 is a perspective view of a main part showing another conventional example.

[Explanation of symbols]

 1 Vehicle 2 Rear Seat 3 Rear Tray 4 Rear Window 5 Car Speaker 6 Reflector 7 Speaker Cabinet

Claims (3)

[Scope of utility model registration request] 1. A plurality of vehicle-mounted speaker devices mounted in a vehicle, wherein a movable reflector is provided near the vehicle-mounted speaker, and acoustic characteristics of the vehicle are adjusted by acoustic reflection of the reflector. The in-vehicle speaker device characterized by the above. 2. The in-vehicle speaker device according to claim 1, wherein a sound absorbing material is attached to the reflection plate. 3. The in-vehicle speaker device according to claim 1, wherein the reflector is formed in an acoustic lens structure.