KR20090035852A - Tweeter apparatus and car speaker apparatus - Google Patents

Abstract

A vehicle speaker device according to the present invention includes: a first speaker device for reproducing bass sound; A second speaker device provided in series with said first speaker device for reproducing a high tone when compared to said low tone; And a connecting portion to which the second speaker device is rotatably connected with respect to the first speaker device.

According to the present invention, the problem caused by the directivity of the tweeter device is improved, and in particular, the tweeter device provided in the form of a coaxial speaker in a narrow space such as the inside of a vehicle can enjoy high quality sound throughout the inside of a narrow space. By installing the woofer properly for woofers without directivity problems, and directing the tweeters in the proper direction for tweeters where directional problems arise, the optimum sound can be enjoyed even in narrow spaces. have.

Description

Tweeter apparatus and car speaker apparatus

BRIEF DESCRIPTION OF THE DRAWINGS The figure explaining the operation | movement of the speaker installed in the inside of a vehicle.

2 is a cross-sectional view of a speaker device in which a woofer and a tweeter are coaxially installed in accordance with an embodiment of the present invention.

3 is an enlarged view of "A" in FIG.

<Explanation of symbols for the main parts of the drawings>

21: Woofer device 22: Twitter device 27: sphere joint

The present invention relates to a tweeter device and a vehicle speaker device as one type of speaker.

A speaker device is a device that amplifies a music signal produced by a tuner or an optical pickup with an amplifier and then reproduces it with sound waves in the air. The speaker device is classified into a woofer that mainly reproduces low sounds, a scoker that mainly reproduces midtones, and a tweeter that mainly reproduces high sounds, according to the frequency characteristics of the sound to be reproduced.

In some cases, the scoker may be omitted, and it may consist of a woofer and a tweeter. Furthermore, in consideration of the narrow space where a speaker can be installed, a coaxial speaker device in which a tweeter is installed coaxially with a woofer is generally installed under a door or rear glass of a vehicle.

Since the bass sounds reproduced by the woofer among the types of the speakers are weak in directivity, the sound waves affect the entire interior space of the vehicle even if the woofer is installed in any direction. On the other hand, the tweeter is a speaker that reproduces high frequencies up to the 20,000 Hz band, and due to the strong straightness, ie, the directivity due to the treble, the sound waves are mainly directed only at the point where the tweeter is directed, and the sound quality is degraded in the periphery thereof. have.

The present invention is proposed to improve the above-described problem, and proposes a tweeter device that improves a problem due to the directivity of the tweeter device provided as one component of the coaxial speaker device.

According to another aspect of the present invention, there is provided a vehicle speaker device including: a first speaker device for reproducing bass; A second speaker device provided in series with said first speaker device for reproducing a high tone when compared to said low tone; And a connecting portion to which the second speaker device is rotatably connected with respect to the first speaker device.

According to another aspect of the present invention, a tweeter device includes: a base part; A yoke rotatably mounted relative to the base portion; A magnet supported by the yoke; A voice coil moving by an electromagnetic force generated between the magnet by an external electric signal; And a speaker cone for reproducing the vibration of the voice coil as sound waves.

According to the present invention, there is an advantage of improving the problem caused by the directivity of the tweeter device. In particular, in the case of a tweeter device provided in the form of a coaxial speaker in a narrow space such as the inside of a vehicle, it is possible to enjoy high-quality sound in the entire interior of the narrow space.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the accompanying embodiments, and those skilled in the art who understand the spirit of the present invention can easily add, change, delete, and add various embodiments included in the scope of the same idea. Although it may be proposed as such, this will also be included within the scope of the present invention.

1 is a diagram illustrating the operation of a speaker installed inside a vehicle as a reference diagram illustrating the idea of the present invention.

Referring to FIG. 1, a speaker is generally mounted inside the vehicle 1 and a lower portion of the rear glass of the vehicle, and the speaker 2 is installed in the lower portion of the rear glass of the vehicle. The speaker is a coaxial speaker, and the woofer and the tweeter may be connected to each other on the same axis. In this case, since the sound waves of the bass region reproduced by the woofer have weak directivity, the sound waves can be transmitted as a whole inside the vehicle. Therefore, the sound waves can be smoothly transmitted to the user located anywhere in the vehicle.

However, according to the direction that the tweeter points, the degree of sound wave transmission is significantly changed due to the directivity of the treble. For example, referring to the solid line in the drawing, when the tweeter faces the rear windshield of the vehicle, the treble played by the tweeter is reflected by the rear windshield and is mainly transmitted only to the occupant sitting in the rear seat, and to the occupant sitting in the front seat. It will not be delivered. On the contrary, if the tweeter is directed toward the cover portion of the vehicle, the treble reproduced by the tweeter is reflected by the cover portion of the vehicle and can be transmitted to the occupant sitting in the front seat.

However, since such sound waves differ markedly from the bass reproduced in the woofer and the treble reproduced in the tweeter, the quality of the sound varies as a whole depending on which direction the speaker device is installed. This problem is more pronounced in the case of a car speaker in which a woofer and a tweeter are coaxially installed.

An embodiment according to the present invention which solves this problem will be described in detail with reference to the cross-sectional view of the speaker device shown in FIG.

Referring to Fig. 2, the speaker device of the present embodiment is provided with a woofer device 21 for mainly reproducing bass, and a tweeter device 22 coaxially with the woofer 21.

The woofer device 21 includes a woofer yoke 23 that forms a skeleton, a woofer magnet 24 supported by the yoke 23 to generate a magnetic force, and a horizontal vibration caused by an external electrical signal. A woofer voice coil 41 is provided. The woofer device generates sound waves by vibrating the woofer speaker cone 31 by an electromagnetic force generated between the electric field generated in the woofer voice coil 41 and the magnetic field generated in the woofer magnet 24.

Similarly, the tweeter device 22 also includes a tweeter magnet 29, a tweeter yoke 28, a tweeter voice coil 30, and a tweeter speaker cone 32 to reproduce sound in the high-pitched region.

Meanwhile, as described above, in the narrow space such as the inside of the vehicle, there is no internal space in which the woofer device and the tweeter device may be separately installed. Therefore, the tweeter device 22 is provided coaxially with the woofer device 21 on the upper side of the woofer device 21 so that the woofer device and the tweeter device can be conveniently installed even in a narrow space. Here, although the woofer device 21 is installed in a fixed type, the tweeter device 22 is free to adjust the angle, it is possible to conveniently adjust the propagation angle of the sound wave of the high-directional high-frequency region reproduced from the tweeter device.

An apparatus for adjusting the angle of the tweeter device will be described in detail with reference to the enlarged view of “A” of FIG. 1 shown in FIG. 3.

2 and 3, a supporter 26 is further provided above the woofer yoke 23, and a spherical joint 27 is provided at the end of the supporter 26. The spherical joint is fitted to the tweeter yoke 28 so that the tweeter yoke 28 rotates in all directions.

According to the structure as described above, even if the woofer device 21 is fixed, the tweeter device 22 can be rotated in all directions around the supporter 26, so that it is optimal for the directivity of the tweeter device. In this state, the direction of acoustic progress of the tweeter device can be adjusted.

As a result, even if the user is a coaxial speaker, by adjusting the direction of the sound played in the woofer device, and the sound played in the tweeter device, it is possible to obtain an advantage that can reproduce the optimal sound. In addition, even after the speaker device is mounted on the object, such as a vehicle, by adjusting the direction of the directional tweeter according to the user's preference, it is possible to obtain the advantage that the optimum sound can be realized according to the type of the object. have. For this purpose, the grill 40 is preferably made of a freely mounted and detached parts.

Referring to Figure 1, once again to explain the advantages of the present invention, the sound reproduced in the woofer device is directed in the direction of the solid line when referring to Figure 2 to maximize the convenience of installation, the sound reproduced in the tweeter device is a virtual line Orientation to the front seats so that the optimal high-pitched sound can be delivered to the user.

By referring to the embodiments of the present invention described above, the spirit of the present invention will be clearly understood. However, the embodiments described above are not to be considered as the spirit and necessary sufficient of the present invention, the following may be proposed as another embodiment included in the spirit of the present invention.

First, the spherical joint is proposed to move the tweeter 360 degrees in all directions, but is not limited to this may be applied to a variety of rotary mechanisms proposed as a 360-degree rotation device. For example, the left and right hinges and the up and down hinges may be disposed in parallel between the woofer device and the tweeter device, such that the tweeter device rotates in all directions and moves.

In addition, in the preferred embodiment, the supporter is disposed to extend to the woofer yoke, and then the spherical joint is placed on the supporter, but the present invention is not limited thereto. The articulated structure may be provided to allow the tweeter device to move.

According to the present invention, the problem caused by the directivity of the tweeter device is improved, and in particular, the tweeter device provided in the form of a coaxial speaker in a narrow space such as the inside of a vehicle can enjoy high quality sound throughout the inside of a narrow space. It becomes possible.

In addition, by installing the woofer without directivity problem and directing the tweeter in the proper direction for the tweeter where the directivity problem arises, it is possible to obtain the optimum sound in a narrow space. .

Claims (5)

A first speaker device for reproducing bass; A second speaker device provided in series with said first speaker device for reproducing a high tone when compared to said low tone; And And a connecting portion for allowing the second speaker device to rotatably connect with respect to the first speaker device. The method of claim 1, The connection portion includes a fixing portion fixedly placed on each speaker device; And Speaker device for a vehicle comprising a spherical joint provided to the connection of the fixed portion. A base portion; A yoke rotatably mounted relative to the base portion; A magnet supported by the yoke; A voice coil moving by an electromagnetic force generated between the magnet by an external electric signal; And A tweeter device including a speaker cone for reproducing the vibration of the voice coil as sound waves. The method of claim 3, wherein The yoke is rotated 360 degrees omnidirectional tweeter device. The method of claim 3, wherein The base unit is a tweeter device which is a woofer device provided coaxially with the tweeter device.

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