JPH0595599A - Speaker - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a smaller speaker while maintaining the same characteristics. [Structure] A cutout portion 8 is formed at a peripheral end portion of a cone paper 5 to lead a lead wire 10 through the cutout portion 8, and at least a concave portion 9 is formed at a peripheral end portion of a plate 3 and a magnet 2. The cord 11 connected to the lead wire 10 in the recess 9
To reduce the size of the speaker. The center 17 of the outer diameter of the base 4 and the center 18 of the inner diameter (center of the speaker unit) are eccentric to further reduce the size.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker which has been made smaller.

[0002]

2. Description of the Related Art A conventional speaker (tweeter) includes a yoke 1, a magnet 2, a plate 3, a base 4, a cone paper 5, and a decorative ring 6, as shown in FIGS.
Cone paper 5 while being composed of (equalizer) etc.
The lead wire 10 having one end connected to the voice coil 21 is led out from the peripheral end portion of the
Are assembled to the base 4 and are connected by soldering to the terminals 12 located outside the peripheral edge of the cone paper 5.

[0003]

In such a conventional speaker, it is desired to reduce the size as much as possible depending on the usage form. For example, such a demand is remarkable when used in a limited space such as in a car.

The present invention was devised to meet such requirements, and an object thereof is to provide a smaller speaker while maintaining the same characteristics.

[0005]

[Means for Solving the Problems]
In a speaker including a yoke 1, a magnet 2, a plate 3, a cone paper 5, etc., a cutout portion 8 is formed at a peripheral end portion of the cone paper 5, and a lead wire 10 is passed through the cutout portion 8.

Further, the center 4 of the outer diameter and the center 18 of the inner diameter (center of the speaker unit) 18 of the base 4 having the assembly portion 13 to which the terminal 12 for connecting the lead wire 10 and the cord 11 are assembled are eccentric. To do.

[0007]

[Function] The two lead wires 10 connected to the cone paper 5 are
It is located in the cutout portion 8 formed in the peripheral end portion of the cone paper 5.
Therefore, the lead wire 10 can be located more inward than that of the conventional speaker, whereby the outer diameter of the base 4 can be reduced. As a result, the entire speaker can be downsized as compared with the conventional speaker having the same characteristics.

The center 17 of the outer diameter and the center of the inner diameter of the base 4
The eccentricity of 18 makes it possible to reduce the outer diameter of the base 4 on the opposite side of the assembling portion 13 compared to the case where the base 4 is not eccentric, which also makes it possible to further miniaturize the speaker.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 show an embodiment of the speaker of the present invention. In this speaker (tweeter), the yoke 1, the magnet 2, and the plate 3 are bonded and assembled to form a magnetic circuit portion, and then the base 4 is bonded and assembled onto the magnetic circuit portion. Further, the cone paper 5 is placed on the base 4, the terminals 12 assembled on the peripheral end of the base 4 and the lead wires 10 are connected by soldering, and the cord formed on the assembly portion 13 of the base 4 The cord 11 is passed through the hole 14 from below, and the cord 11 and the terminal 12 are soldered. The voice coil 21 is led out to the outside through the lead wire 10 by the cord 11.

In this embodiment, a pin hole 15 is formed in the assembling portion 13 of the base 4 in addition to the code hole 14 through which the cord 11 is inserted, and the terminal 12 is assembled by press fitting. In addition, a guide hole 16 is provided in the base 4, and the cord 11
Is inserted into the code hole 14 and is prevented from coming off from the base 4. The cap 7 has a cylindrical shape made of, for example, rubber and is fitted on the decorative ring 6 from above. The yoke 1 has a circular shape in plan view, but if necessary, forms a recess for passing the cord 11.

4 and 5 show another embodiment of the present invention.
Base 4 of speaker (tweeter) in this embodiment
Causes the center 17 of the outer diameter to be eccentric from the center 18 of the inner diameter (center of the speaker unit) to the side of the assembling portion 13 so that the assembling portion is
The area of 13 is secured as usual, and the outer diameter is made smaller than that of the conventional base 4. That is, as shown by the dotted line in FIG.
When a circle is drawn with a radius up to the left end of the, the right side projects to the right from the base 4 shown by the solid line. In the embodiment, the size is reduced to the size indicated by the dotted line and the size indicated by the solid line.

Further, in this embodiment, the case 7 is made of, for example, aluminum, and unlike the above embodiment, the case 7 is assembled from below the speaker unit and then the decorative ring 6 is placed and fixed thereon. Is.

By using, for example, a neodymium magnet as the magnet 2, a compact and stronger magnetic force can be obtained, so that not only the outer diameter of the speaker but also its thickness can be reduced.

Further, the embodiments of FIGS. 4 and 5 can be applied to the embodiments of FIGS. 1 to 3.

[0015]

As described above, according to the present invention, since the notch portion in which the two lead wires are located is formed at the peripheral end portion of the cone paper, the speaker can be miniaturized. Further, by eccentricizing the outer diameter and the inner diameter of the base, the outer diameter of the base can be reduced, and the speaker can be made more compact. The speaker of the present invention, which has the same characteristics and is downsized, is extremely advantageous for use in a narrow space such as in a vehicle.

[Brief description of drawings]

FIG. 1 is an assembled perspective view showing a configuration of an embodiment of a speaker of the present invention.

FIG. 2 is an enlarged perspective view of a main part showing a configuration of a cone paper, a base and a terminal of the embodiment shown in FIG.

FIG. 3 is an enlarged perspective view of essential parts showing the configuration of guide holes of the base of the embodiment shown in FIG.

FIG. 4 is a plan view showing the configuration of another embodiment of the speaker of the present invention.

5 is a cross-sectional view of the embodiment shown in FIG.

FIG. 6 is a cross-sectional view showing a configuration of an example of a conventional speaker.

7 is an enlarged perspective view of an essential part showing the configuration of cone paper of the conventional speaker shown in FIG.

FIG. 8 is a plan view of the cone paper shown in FIG.

[Explanation of symbols]

 1 yoke 2 magnet 3 plate 4 base 5 cone paper 6 decorative ring 7 case 8 notch 9 recess 10 lead wire 11 code 12 terminal 13 assembly part 14 code hole 15 pin hole 16 guide hole 17 outer diameter center 18 inner diameter center

Claims (2)

[Claims] 1. A speaker including a yoke, a magnet, a plate, a cone paper, etc., wherein a notch portion in which two lead wires are located is formed at a peripheral end portion of the cone paper. . 2. A speaker formed by eccentricizing an outer diameter and an inner diameter of a base to which a terminal for connecting a lead wire from a voice coil and a cord for electrically leading the lead wire to the outside is assembled.