JPH10157522A - On-vehicle speaker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make sound high in quality in connection with the on-vehicle speaker device used as a door mounted speaker. SOLUTION: In this device, a door trim 3A is provided, in which a first grill 3a is disposed in front of a speaker 1 mounted onto a door inner panel 2, and concurrently a second grill 3c is also provided, which is located at the arm rest portion of the door trim 3A, corresponding to an upper space between the first grill 3a and the speaker 1. The sound of voices from the speaker 1 is also transmitted from the second grill 3c, the occurrence of cavity resonance taking place in a space between the speaker 1 and the first grill 3a is thereby restrained, and the sound of voices is also transmitted upward in the cabin through the second grill 3c, so that sound characteristics can thereby be tried to be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle speaker device used as an in-vehicle door mount speaker.

[0002]

2. Description of the Related Art In recent years, a vehicle mounted on a door has become the mainstream in a vehicle-mounted speaker device, and a vehicle equipped with a rear speaker as well as a front speaker has been increasing. .

[0003] A conventional general in-vehicle speaker device will be described with reference to FIGS.

FIG. 3A is a side sectional view when a speaker is directly mounted on a door inner panel, and FIG. 3B is a view when the speaker is mounted on a door inner panel via a spacer made of a resin molded product or the like. It is a side sectional view.

First, according to FIG. 3A, reference numeral 1 denotes a speaker which is directly mounted on the door inner panel 2. 3
Is a door trim facing the interior of the vehicle and having a substantially planar armrest 3b provided above.
Is provided with a speaker grill 3a for emitting sound from the speaker 1 into the cabin of the vehicle.

Next, only the differences between the in-vehicle speaker device of FIG. 3B and the in-vehicle speaker device of FIG. 3A will be described. To make the speaker 1 approach the speaker grill 3a, the door inner panel 2 A speaker 4 is mounted on the spacer 4.

[0007]

However, FIG.
In the on-vehicle speaker device (a), when the speaker 1 is directly mounted on the door inner panel 2, the speaker grill 3 is mounted.
A large space was formed between the speaker a and the speaker 1, and cavity resonance occurred, which had an adverse effect on acoustic performance.

Further, in the vehicle-mounted speaker device shown in FIG. 3B, since the speaker grill 3a and the speaker 1 are brought close to each other by using the spacer 4, there is no problem in acoustic performance. This was necessary and disadvantageous in terms of cost.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an in-vehicle loudspeaker apparatus which solves the above problems and has improved acoustic performance and is excellent in cost.

[0010]

In order to solve the above-mentioned problems, a vehicle-mounted speaker device according to the present invention comprises a speaker mounted on an inner panel, and a door trim having a first grill provided on a front surface of the speaker. A second grill provided on the door trim above the space between the first grill and the speaker, eliminating the need for additional components such as spacers and providing a second grill. In-vehicle speaker that suppresses sound reflection from the door trim, suppresses the space where cavity resonance occurs, emits the sound of the speaker also from the second grill, and is low cost and excellent in acoustic performance. An apparatus can be provided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention relates to a speaker mounted on an inner panel, a door trim having a first grill provided on a front surface of the speaker, and a first grill. And a second grill provided on the door trim above the space between the speaker and the speaker, eliminating the need for a separate component such as a spacer, and providing a second grill to provide a second grill with the door trim. Provided is an in-vehicle speaker device which suppresses sound reflection between the spaces, suppresses the space where cavity resonance occurs, emits the sound of the speaker also from the second grille, and is low cost and excellent in acoustic performance. Is what you can do.

According to a second aspect of the present invention, the second grill of the vehicle-mounted speaker device according to the first aspect is provided on an armrest of a door trim, and a sound radiated from the speaker is directed upward in a vehicle cabin. The loudspeaker device has excellent acoustic performance due to radiation, and the armrest is made to be the second grill, so that space can be saved.

An embodiment of a vehicle speaker system according to the present invention will be described below with reference to FIGS. In the description, the same parts as those of the conventional art are denoted by the same reference numerals, and the description will be omitted.

FIG. 1 is a side sectional view of an on-vehicle speaker device according to an embodiment of the present invention, and FIG. 2 is a frequency characteristic diagram.

According to the figure, 3A is a door trim,
A first grille 3a is provided on the front surface of the diaphragm of the speaker 1, and a second grille 3c is provided on an armrest 3b above the space between the first grille 3a and the speaker 1.

The second grill 3c is not limited to the upper surface of the armrest 3b due to the shape of the door trim 3A, but may be any as long as it is located above the space between the first grill 3a and the speaker 1. However, by providing the armrest 3b as in the above embodiment,
The second grill 3c can be provided without changing the shape of the door trim 3A, so that space can be saved.

FIG. 2 shows the measurement of the frequency characteristics in the vehicle cabin, and it was confirmed that the frequency characteristics were improved in the middle range and the low range as compared with the prior art.

[0018]

As described above, in the vehicle-mounted speaker device according to the present invention, even when the speaker is mounted in a recessed position, the occurrence of cavity resonance is suppressed by the second grill, and the second grill further increases the vehicle interior direction. To the sound field, which gives a sense of expansion to the sound field.This makes it possible to reproduce sound with excellent acoustic performance, and eliminates the need for spacers such as resin molded products. Is also excellent.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an embodiment of an in-vehicle speaker device according to the present invention.

FIG. 2 is a diagram showing frequency characteristics in the vehicle compartment.

FIG. 3A is a side sectional view of a conventional in-vehicle speaker device. FIG. 3B is a side sectional view of another in-vehicle speaker device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Speaker 2 Door inner panel 3A Door trim 3a 1st grill 3c 2nd grill

Continued on the front page (72) Inventor Sumio Ishihara 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. A speaker mounted on an inner panel, a door trim having a first grill provided on a front surface of the speaker, and a door trim above a space between the first grill and the speaker. An in-vehicle speaker device including a second grill provided. 2. The in-vehicle speaker device according to claim 1, wherein the second grill is provided on an armrest of the door trim.