JP2003259472A - Speaker and electronic apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve listening and watching concerning a speaker and an electronic apparatus using the same. <P>SOLUTION: The speaker is provided with a voice coil 1, a diaphragm 2 connected to the coil 1, and a cover 3 provided on the front surface of the diaphragm 2. The front surface of the diaphragm 2 is used as a reflection surface, a light-emitting element 8 for supplying light to the front surface of the diaphragm 2 is provided, and the cover 3 is formed by a dark porous material. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker and an electronic device using the speaker.

[0002]

2. Description of the Related Art A conventional speaker for enhancing a viewing effect includes a voice coil, a diaphragm connected to the voice coil, and a cover provided on the front surface side of the diaphragm, and reflects the surface of the diaphragm. In addition to the surface, a light emitting element for supplying light was provided on the surface of this diaphragm.

[0003]

In the above conventional example, the viewing effect could not be enhanced so much.

That is, the light emitted from the light emitting element is certainly emitted from the reflecting surface of the diaphragm and emitted forward, but there is a cover for protecting the reflector, and this cover is present. Due to the existence of, the reflected light cannot be sufficiently confirmed from the viewer side, and thus the viewing effect is not enhanced.

Therefore, the present invention is intended to enhance the viewing effect.

[0006]

In order to achieve this object, the invention of claim 1 of the present invention comprises a voice coil,
A light-emitting element that includes a diaphragm coupled to the voice coil and a cover provided on the front surface side of the diaphragm, uses the surface of the diaphragm as a reflecting surface, and supplies light to the surface of the diaphragm. Provided, the cover is formed of a black porous body, by making the cover a black porous body, reflected light of the light emitting element from the reflective surface of the diaphragm surface through the hole of the cover. This can be effectively confirmed from the cover surface side, which enhances the viewing effect.

That is, when the cover is white, the light on the outside (viewer side) of the cover is reflected by this cover and reaches a large amount to the viewer side. The less light is reflected by the cover, the more easily the reflected light from the reflecting surface of the diaphragm becomes conspicuous. In addition, if the cover through which the reflected light passes is a black porous body, the portion through which the reflected light passes. Is black, the reflected light becomes clearer, and as a result, the viewing effect is enhanced as described above.

Next, the invention of claim 2 is the speaker according to claim 1, wherein the cover back surface portion inside the outer peripheral edge of the diaphragm is supported at one end side of the edge, and at the back surface of the diaphragm, By supporting the inner part from the outer periphery on one end side of the edge, the reflecting surface of the diaphragm can be widely used without being partially covered by the edge, and as a result, the reflecting surface can be wide and enhance the viewing effect. Becomes

Next, a third aspect of the present invention is to provide a frame outside the diaphragm, and between the frame and the outer peripheral end of the diaphragm, the edge other than the edge is inserted through the portion depressed on the back surface side of the diaphragm. The speaker according to claim 2, wherein the end side is fixed to the frame, and since a groove to the rear surface side of the diaphragm is formed between the outer peripheral edge of the diaphragm and the frame, the viewing effect is enhanced.

That is, if a groove is formed at the outer peripheral edge of the diaphragm, the diaphragm and the frame are completely separated by this groove, that is, the contour of the reflected light from the reflecting surface of the diaphragm is clearly shown. As a result, the viewing effect is enhanced.

Next, the invention of claim 4 is the speaker according to claim 3, wherein the edge is black, and if the edge is black, the inside of the groove becomes darker black, and the reflection of the diaphragm is reflected. The contour of the reflected light from the surface appears more clearly, which enhances the viewing effect.

Next, the invention of claim 5 is the speaker according to claim 3 or 4 in which the frame is blackish,
If the frame is black, it is easy to optically separate it from the reflecting surface of the diaphragm, and thus the viewing effect can be enhanced.

Next, a sixth aspect of the present invention is an electronic device for causing the light emitting element of the speaker according to any one of the first to fifth aspects to emit light by a signal having a correlation with a signal to the voice coil. Since the reflected light having a correlation with the sound is emitted from the surface reflection surface of, the viewing effect as the electronic device can be enhanced.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

The speaker of this embodiment has a cylindrical voice coil 1 as shown in FIG. 1, a disk-shaped diaphragm 2 coupled to the outer center of the voice coil 1, and a front surface side of the diaphragm 2. And a disk-shaped cover 3 provided on the.

The voice coil 1 is composed of a cylindrical bobbin 1a and a coil 1b wound around the outer lower part thereof.

This inner coil 1b portion is movably provided in a gap 17 portion between plates 5 and 6 of a magnetic circuit constituted by a donut-shaped magnet 4 and plates 5 and 6 provided above and below it.

Below the portion of the bobbin 1a where the diaphragm 2 is fixed, the inside of the disk-shaped damper 18 is fixed,
Further, the outside of the damper 18 is fixed below the metal frame 7.

The vibrating plate 2 is made of resin and has a reflecting surface by depositing metal on the surface thereof. Further, in order to supply light to the surface of the vibration plate 2, four light emitting elements 8 are provided at 90 ° intervals.

Specifically, the column body 10 with the flange 10a is fitted in the upper opening of the cylindrical column body 9,
Four light emitting elements 8 are arranged at intervals of 90 degrees on the flange 10a.

Further, a disc-shaped cap 11 having a center protruding upward is fixed by utilizing the flange 10a.

The cap 11 is made of resin, and metal is vapor-deposited on both the front and back surfaces to form a reflecting surface.

Therefore, the light of the light emitting element 8 reaches the reflecting surface of the front surface of the diaphragm 2 either directly or by being reflected on the back surface side of the cap 11, and then passes through the perforation of the cover 3 to the front viewer side. Will proceed to.

A dustproof cover 12 extends from the flange 10a toward the diaphragm 2 and is made of urethane foam.

Reference numeral 13 is an electronic equipment main body, and the metal frame 7 is fixed by screws 14.

In the above structure, the cover 3 is formed of a black porous body, specifically, for example, a metal plate is punched out and then painted black or a black resin is formed porous. is there. That is, by thus forming the cover 3 as a black porous body, the reflected light of the light emitting element 8 from the reflecting surface of the surface of the diaphragm 2 is effectively confirmed from the surface side of the cover 3 through the pores of the cover 3. Therefore, the viewing effect is enhanced.

That is, if the cover 3 is white, the light on the outside (viewer side) of the cover 3 is reflected by the cover 3 and reaches a large amount of the viewer side, whereas the cover 3 is the present embodiment. If the cover 3 is black as in the form, the amount of reflection by the cover 3 is reduced, so that the reflected light from the reflecting surface of the diaphragm becomes more noticeable, and in addition to that, the cover 3 through which the reflected light passes has a black porous structure. In the case of a body, since the portion through which the reflected light passes is blackish, the reflected light becomes clearer, and as a result, the viewing effect is enhanced as described above.

Further, in this embodiment, the back surface of the cover 3 inside the outer peripheral edge of the diaphragm 2 is supported by one end of the edge 15.

In this way, by supporting the rear surface of the diaphragm 2 and the inner side of the outer periphery at one end of the edge 15, the reflective surface of the reflective plate 2 is not partially covered by the edge 15. It can be widely used, and as a result, the reflecting surface is wide and the viewing effect can be enhanced.

Further, in this embodiment, a doughnut-shaped frame 16 made of paper or resin is provided outside the diaphragm 2, and between the frame 16 and the outer peripheral end of the diaphragm 2, the rear side of the diaphragm 2 is provided. The other end side of the edge 15 is fixed to the frame 16 via the part that is sunk.

Therefore, the outer peripheral edge of the diaphragm 2 and the frame 1 are
Since a groove 2A is formed on the back surface side of the diaphragm 2 between 6 and 6, the viewing effect is enhanced.

That is, when the groove 2A is formed at the outer peripheral end of the diaphragm 2, the diaphragm 2 and the frame 16 are completely separated by the groove 2A, that is, the contour of the reflected light from the reflecting surface of the diaphragm 2 is clear. As a result, the viewing effect is enhanced.

Further, according to this embodiment, the edge 15 is black, and if the edge 15 is black, the inside of the groove 2A becomes darker black, and the contour of the reflected light from the reflecting surface of the diaphragm 2 is Furthermore, it will be clearly shown, which will enhance the viewing effect.

Further, in this embodiment, the frame 16 is made of a black type, and if the frame 16 is made of a black type, the diaphragm 2
It is easy to achieve optical separation from the reflective surface, and this can enhance the viewing effect.

Since the light emitting element 8 of the speaker shown in FIG. 1 is caused to emit light by a signal having a correlation with the signal to the coil 1b of the voice coil 1, there is a correlation with the sound from the surface reflection surface of the diaphragm 2 of the speaker. By emitting the reflected light, the viewing effect as an electronic device can be enhanced.

[0036]

As described above, the present invention comprises the voice coil, the diaphragm coupled to the voice coil, and the cover provided on the front surface side of the diaphragm, and the surface of the diaphragm is a reflecting surface. In addition, a light emitting element for supplying light is provided on the surface of the diaphragm, and the cover is formed of a black porous body. The reflected light of the light emitting element from the reflective surface can be effectively confirmed from the cover surface side through the hole of the cover, and thereby the viewing effect is enhanced.

That is, when the cover is white, the light on the outside (viewer side) of the cover is reflected by this cover and reaches a large amount on the viewer side, whereas when the cover is black, As the reflection by the cover decreases, the reflected light from the reflecting surface of the diaphragm becomes more noticeable, and in addition, if the cover through which the reflected light passes is a black porous body, the reflected light passes through. Since the part is black,
The reflected light becomes clearer, and as a result, the viewing effect is enhanced as described above.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

1 voice coil 2 diaphragm 2A groove 3 cover 8 light emitting elements 15 Edge 16 frames

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04R 9/02 101 H04R 9/02 101A 101B 9/04 105 9/04 105A (72) Inventor Teruo Doi Osaka 1006 Kadoma, Kadoma-shi, Fuchu F-term in Matsushita Electric Industrial Co., Ltd. (reference) 5D012 BB01 CA04 CA08 5D016 AA09 5D017 AF07

Claims (6)

[Claims] 1. A voice coil, a diaphragm coupled to the voice coil, and a cover provided on a front surface side of the diaphragm, the surface of the diaphragm serving as a reflecting surface,
A speaker in which a light emitting element for supplying light is provided on the surface of the diaphragm, and the cover is made of a black porous material. 2. The speaker according to claim 1, wherein the cover back surface portion inside the outer peripheral edge of the diaphragm is supported at one end side of the edge. 3. A frame is provided on the outside of the diaphragm, and the other end of the edge is fixed to the frame through a portion depressed to the back side of the diaphragm between the frame and the outer peripheral end of the diaphragm. The speaker according to claim 2. 4. The speaker according to claim 3, wherein the edge is blackish. 5. The speaker according to claim 3, wherein the frame is black. 6. An electronic device for causing a light emitting element of a speaker according to claim 1 to emit light by a signal having a correlation with a signal to a voice coil.