JP3894333B2 - Illuminated speaker - Google Patents

Description

The present invention relates to a speaker used for various kinds of audio equipment, and more particularly to an illumination-equipped speaker that can change the amount of light according to the strength of an input signal.

  Speakers that have an illumination function so that music can be enjoyed not only from the ears but also from the eyes are also used in vehicle audio equipment, game machines, pachinko machines, and the like.

  Specifically, for example, in Japanese Patent Application Laid-Open No. 11-164378 (Patent Document 1), at least one light emitting element disposed in a speaker body, the voice coil for the speaker, and the light emitting element constituting a magnetic circuit are provided. A light emitting element driving voice coil for driving the electromotive force induced in the light emitting element driving voice coil in accordance with an audio signal input to the speaker voice coil. In addition, there has been proposed an electrodynamic loudspeaker device with illumination that does not require a power supply wiring that changes the amount of light according to the intensity of an audio input signal to light up or flash.

  Further, in Japanese Patent Laid-Open No. 2000-217185 (Patent Document 2), a cone-type diaphragm, a frame that supports the cone-type diaphragm via an edge, and a center hole periphery of the base of the cone-type diaphragm are attached. A cone-type speaker unit having a voice coil, a damper that supports the voice coil so that the voice coil can move forward and backward, a magnet that surrounds the voice coil, and a base to which the magnet and the frame are fixed. An LED circuit is connected in parallel, and the LED (light emitting diode) of the LED circuit is installed in a region surrounded by the voice coil on the base so that the LED (light emitting diode) can be seen through the center hole of the cone type diaphragm. There has been proposed a speaker unit provided with a light emitting means for emitting light according to a change.

Further, in Japanese Patent Laid-Open No. 2001-238282 (Patent Document 3), as a speaker with illumination that enables a variety and enhancement of the illumination effect of the speaker, a yoke having a vent hole and a transparent plate disposed on the diaphragm are used. A center cap having a light property, a cylindrical body having a space on the side of the center cap, and fixed to a bottom portion of the center cap at a side surface end; a light source disposed in the space; and the cylindrical body. A bobbin that is fixed and extends from the cylindrical body toward the yoke in the outer side or the inner side of the yoke, and is wound around the bobbin and moves the diaphragm in the magnetic flux from the magnet. And an induction coil that generates an induced electromotive force for causing a current to flow through the light source.
JP-A-11-164378 (Claims) JP 2000-217185 A (Claims, FIG. 2) JP 2001-238282 A (Claims, FIG. 1)

  The illumination added to these conventional loudspeakers emits light with a change in volume such that if the amplitude of the audio current is large, the LED also emits light at high luminous intensity, and conversely, if the amplitude of the audio current is small, the LED emits light at low luminous intensity. In the invention described in Patent Document 2, as is apparent from paragraph 0013 in the detailed description of the invention, no light is emitted in the case of an extremely small current, and what is the illumination effect? Can not be obtained. Of course, no illumination effect can be obtained even when there is no sound in the voice standby state.

  As described above, each of the speakers described in each of the above-mentioned patent documents only emits light with a change in volume. When the volume change is small, the illumination is visually simple. There is a problem that the variation of the illumination change is lacking as an illumination speaker in the case where it is required to always have a visually gorgeous and stimulating appeal like a pachinko machine or the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a speaker with illumination having various illumination means.

In order to achieve the object, the invention according to claim 1 of the present invention provides
While placing a columnar lens inside the voice coil bobbin on the magnetic circuit,
A first light emitter is disposed above the lens, and a second light emitter is disposed in the lower part of the lens,
A first reflecting surface for refracting the light of the first light emitter is formed on the upper portion of the lens, and a second reflecting surface for refracting the light of the second light emitter is formed on the inner peripheral surface of the lower portion of the lens. ,
An illumination speaker characterized in that a part of the input signal of the speaker is shunted to the lighting circuit for lighting each of the light emitters, and the luminance of at least one of the light emitters is changed in synchronization with the input signal. It is.

The invention according to claim 2 of the present invention is
In the speaker with illumination according to claim 1,
The lens is
It is made of a transparent resin or glass.

The invention according to claim 3 of the present invention is
The illuminated speaker according to claim 1 or 2,
The lens is
There is a through hole in the center, and the lower end is fixed to the upper surface of the center pole of the lower plate constituting the magnetic circuit, and the tip protrudes from the upper end of the voice coil ibobin. A mounting portion having an enlarged diameter for mounting the first light emitter is integrally formed.

The invention according to claim 4 of the present invention is
In the speaker with illumination in any one of Claims 1-3,
Each of the reflective surfaces is
It is characterized by being curved in a concave shape with respect to the opposing light emitter.

The invention according to claim 5 of the present invention is
The speaker with illumination according to claim 4,
Each of the reflective surfaces is
Arranged so that the concave and convex portions of each reflecting surface do not overlap each other in the vertical direction, and are divided at predetermined intervals by concave and convex portions that extend radially from the central through hole to the outer peripheral portion. It is characterized by being.

The invention according to claim 6 of the present invention provides
The illuminated speaker according to claim 5,
The convex portion is
It is characterized by being formed in a descending step shape from the outer periphery toward the center.

The invention according to claim 7 of the present invention provides
In the speaker with illumination in any one of Claims 1-6,
The lens is
A cap is mounted on the tip portion or the mounting portion of the first light emitter.

The invention according to claim 8 of the present invention provides
The speaker with illumination according to claim 7,
The cap is
It is made of a transparent material, and the inside thereof is divided at a predetermined interval by a plurality of convex portions extending radially from the central portion.

The invention according to claim 9 of the present invention provides
The illuminated speaker according to claim 1,
Each of the light emitters is
The light-emitting diode includes a light-emitting diode, a substrate on which the light-emitting diode is mounted, and a lead wire attached to the substrate.

The invention according to claim 10 of the present invention provides
The illuminated speaker according to claim 1 or 9,
Each of the light emitters is
The first light emitter is configured to synchronize with an input signal of a speaker, and the second light emitter is configured to emit light in an input signal standby state.

The invention according to claim 11 of the present invention provides
The illuminated speaker according to claim 9 or 10,
The first illuminant is
A plurality of light emitting diodes are arranged on the circumference.

The invention according to claim 12 of the present invention provides
The illuminated speaker according to claim 11,
The plurality of light emitting diodes are:
It is composed of at least two colors.

The invention according to claim 13 of the present invention provides
The illuminated speaker according to claim 12,
The second light emitter is
This is characterized in that it is an IC built-in type that automatically blinks and can synthesize R, G, and B whose colors change steplessly by detecting no signal when the input signal is in a standby state.

The invention according to claim 14 of the present invention provides
The illuminated speaker according to claim 1 or 9,
Each of the light emitters is
The brightness is changed in synchronization with the input level when the speaker is driven, and the brightness is changed steplessly by a reference transmission circuit provided in the lighting circuit.

The invention according to claim 15 of the present invention provides
The speaker with illumination according to claim 14,
The reference transmission circuit is
It is characterized by having a strobe function that constantly turns on and off light.

The invention according to claim 16 of the present invention provides
The illuminated speaker according to claim 9,
The first illuminant is
The lead wire is connected to the lead wire constituting the second light emitter through the through hole of the lens, and the tip of the lead wire constituting the second light emitter is the central portion of the magnetic circuit. It is connected to a lighting circuit through a through-hole formed in.

  In the speaker with illumination according to the present invention, a columnar lens is arranged inside a voice coil bobbin above the magnetic circuit, a first light emitter is arranged above the lens, and a second light emitter is arranged below the lens. A reflecting surface having an effect of transmitting, reflecting, or refracting light emitted from each light emitter (hereinafter referred to collectively as "reflection") corresponding to the lens; Since a part of the input signal of the speaker is shunted to the lighting circuit that lights up the light, and the luminance of at least one light emitter is changed in synchronization with the input signal, the light emitted from each light emitter is Since the reflecting surface is irradiated with multiple reflections repeatedly on the diaphragm, various illumination effects are produced.

  In particular, in this invention, the columnar lens is formed of a transparent resin or glass, and a reflecting surface having an effect of reflecting light or the like is formed in the light traveling direction of each light emitting body. The illumination light is irradiated onto the diaphragm, and various illumination effects are obtained.

  Further, either one of the light emitters is configured such that the luminance changes in synchronization with the input level when the speaker is driven, and the luminance is changed steplessly by a reference transmission circuit provided in the lighting circuit, and the other By adopting a self-flashing IC built-in type that can synthesize R, G, and B whose color changes steplessly by detecting no signal when the input signal is in a standby state and releasing standby. Various illumination effects can be obtained.

  In addition, the lighting circuit of the light emitter is equipped with a strobe function that constantly turns the light on and off even with input signals with little change, such as a single sound or sweep sound. The reflected light can be displayed three-dimensionally, and it provides a variety of illumination effects that vary greatly, especially when playing sound effects from game consoles.

Furthermore, since the light emitted from each light emitter is emitted from the entire lens lens, the light is further emitted by the prism effect on the reflection surface of the lens by making the reflection surface and the like complicated. It is refracted in various directions and becomes gentle indirect light on the diaphragm, making it possible to emit complex iridescent light.

Hereinafter, an embodiment of a speaker with illumination according to the present invention will be specifically described with reference to the accompanying drawings.
The present invention is not limited only to the embodiments described later, and a cylindrical lens is disposed in the voice coil bobbin above the magnetic circuit, and light emitters are respectively disposed above and below the lens. A reflecting surface for reflecting light is formed in the light traveling direction of each light emitter, and a part of the input signal of the speaker is shunted to a lighting circuit for lighting each light emitter, so that at least one light emission Various changes can be made within a range in which the gist of changing the luminance of the body in synchronization with the input signal is not changed.

  FIG. 1 is a schematic cross-sectional view showing the structure of a speaker and a light diffusion state of an example of the speaker with illumination according to the present invention. The speaker body constituting the speaker 1 with illumination includes a lower plate 3 having a center pole 2, A magnetic circuit 6 comprising a ring-shaped magnet 4 and a ring-shaped upper plate 5, a frame 7 fixed to the upper plate 5, a voice coil bobbin 8 wound with a voice coil, and the voice coil within a magnetic gap. The damper 9 is held, and the diaphragm 10 is fixed to the outer periphery of the upper portion of the voice coil bobbin 8 at the center and to the inner periphery of the opening of the frame 7 at the outer periphery.

  In the speaker main body having such a configuration, in the present invention, the illuminating unit 11 including one lens 12 and two light emitters 13 and 14 is mounted in the voice coil bobbin 8 above the magnetic circuit 6.

As is clear from FIG. 3, the lens 12 constituting the illumination unit 11 has an outer diameter that is smaller than the inner diameter of the voice coil bobbin 8, and a tip part having a height protruding from the tip part of the voice coil bobbin 8. It is made of a high-resin or glass columnar body, and a mounting portion 12a having an enlarged diameter is integrally formed at the tip portion via a step portion, and a through-hole penetrating from the upper surface to the lower surface in the center portion 12b is formed.
In addition, a reflective surface A that is curved in a concave shape for reflecting light emitted from the first light emitter 13 is provided at the upper portion thereof and is opposed to a first light emitter 13 to be described later, and a A cavity 15 having a reflecting surface B that is concavely curved for mounting the second light emitter 14 and reflecting the light emitted from the second light emitter 14 is formed.

  The reflecting surfaces A and B that reflect the light and the like are curved in a concave shape in the light traveling direction of the light emitters 13 and 14, respectively, so that the light from the light emitters 13 and 14 is widely spread on the diaphragm 10. It can be diffused uniformly.

In addition, as is apparent from FIGS. 2 and 4, particularly FIGS. 5 and 6, the reflection surfaces A and B are radially spaced from the periphery of the central through-hole 12 b toward the outer periphery by 20 degrees. The ridges 16 and 17 are formed, and concave grooves are formed between the ridges 16, 16, 17, and 17, respectively, and the ridges 16 and 17 are sequentially descended from the outer peripheral portion toward the through hole 12 b. Stairs 16a and 17a are formed in the direction.
Therefore, the light emitted from the light emitters 13 and 14 is sequentially reflected by the steps 16a and 17a formed on the reflection surfaces A and B, and reaches the diaphragm 10 while spreading outward.

  When the reflecting surfaces A and B are formed on the upper and lower inner peripheral portions of the lens 12 and the protrusions 16 and 17 are formed on the reflecting surfaces A and B as described above, The light emitted from the light emitters 13 and 14 is arranged by shifting the positions of the protrusions 16 and 17 formed on the opposing reflection surfaces A and B so as not to overlap in the vertical direction. Can be advanced while being reflected in a complicated manner, thereby enabling light emission of a complicated color.

  Further, the light transmitted through the reflecting surfaces A and / or B spreads in the lateral direction that is the side surface direction of the adjacent ridge 16 or 17, and the light is repeatedly reflected in the rotation direction. The gap of 16 or 17 will shine. In addition, although the said protrusions 16 and 17 are made into the step shape in this Example, if it is a shape which can diffuse light efficiently, it will select suitably without limiting to this.

As the light emitters 13 and 14 disposed on the lens 12, light emitting diodes (LEDs) are used for reasons such as power consumption, miniaturization and no heat generation. As shown in FIG. 9, the light emitting body 13 disposed on the upper side has a transparent substrate 20 having a size that can be placed on the step S formed inside the mounting portion 12 a and a back surface of the substrate 20. The light emitting diode 21 is provided and a lead wire 22 attached to the substrate 20.
The light emitter 14 disposed in the cavity 15 of the lens 12 includes a substrate 30, a light emitting diode 31 provided on the upper surface of the substrate 30, and a lead wire 32 attached to the substrate 20. .

For attaching the light emitters 13 and 14 to the lens 12, first, after connecting the lead wire 22 to the light emitting diode 21 attached to the substrate 20 constituting the light emitter 13, the tip of the lead wire 22 is attached to the lens 12. It is made to penetrate from the upper part to the through-hole 12b provided in the center part.
On the other hand, after the lead wire 32 is connected to the substrate 30 to which the light emitting diode 31 constituting the light emitter 14 is attached, the light emitting diode 31 is inserted into the cavity 15, and then the connection terminals 33 provided in advance on the substrate 30. 33 are connected to the leading ends of the lead wires 22 and 22, respectively.

Thus, in the lens 12 with the light emitters 13 and 14 mounted at predetermined positions, first, the lead wire 32 is inserted into the voice coil bobbin 8 from above the voice coil bobbin 8 constituting the speaker body, as shown in FIG. The lens 12 is inserted into the voice coil bobbin 8 while its tip is pulled out through a through hole 18 formed in the center of the center pole 2 of the magnetic circuit 6, and the lower end of the lens 12 is inserted into the center pole 2. Then, the cap 19 is mounted on the mounting portion 12a of the receptacle 12 to constitute the illuminated speaker 1 after being bonded and fixed to the upper surface of the speaker.
The lead wires 22 and 32 drawn out of the magnetic circuit 6 are connected to a lighting circuit.

A cap 19 is mounted on the mounting portion 12 a of the lens 12 protruding from the tip of the voice coil bobbin 8.
The cap 19 is made of a transparent resin, and as shown in FIGS. 7 and 8, the convex portions 19a are radially formed from the central portion toward the outer peripheral portion at regular intervals. The light leaking to the inside of the cap 19 can be directed toward the diaphragm 10 while being repeatedly reflected, etc., and can contribute to the illumination.

  In the above embodiment, the first light emitter 13 is composed of a single light emitting diode 21. However, a plurality of light emitters can be arranged on the substrate, basically. It can be assembled in the same way as in one case.

Hereinafter, the illumination method of the illumination-equipped speaker 1 configured as described above will be specifically described based on the lighting circuit shown in FIG. 11. In the figure, reference numeral 22 denotes a light-emitting diode constituting the first light emitter 13. , 23 is a self-flashing light-emitting diode of IC built-in type that can compose R, G, and B constituting the second light emitter 14, and a part of the input signal of the speaker is shunted to the lighting circuit 40.
Therefore, the direct current is first cut by the resistor R8 and the capacitor C3. Further, a signal that is current-limited by the resistor R7 is applied to the circuit, so that the luminance of the light emitting diode 22 is changed to emit light in synchronization with the magnitude of the input signal of the speaker. is there.

In addition, the light emitting diode 23 uses an LED with a built-in IC that automatically flashes and can be combined with R, G, and B. When the input signal standby state is established, Q6 and Q7 are turned off by resistors R5 and Q5 that turn off Q4. Q2 is turned ON by OFF, R11, and R12, the no signal is detected, the standby is canceled, and the combined light of R, G, and B whose color changes steplessly is emitted.
In the lighting circuit 40, the light emitting diode 23 is set in a standby state so as not to be lit when the speaker is driven.

  In addition, since a reference transmission circuit (CR transmission circuit) composed of CR and two transistors is provided in the lighting circuit 40, a signal having a frequency input from the audio amplifier is a reference frequency from the reference transmission circuit. When it comes close to the light, a beat occurs in the emitted light due to mutual interference, and the luminance can be changed without permission.

  Further, the lighting circuit 40 has a strobe function that constantly turns the light on and off by interfering with the ON / OFF timing of Q3 and Q5 by the frequency oscillated by the reference transmission circuit and the input signal of the speaker. Since it is exhibited and works as a circuit for thinning the lighting time, even an input signal with little change can be emitted while blinking light.

  Further, by using a plurality of light emitting diodes, specifically, a plurality of diodes having different emission colors, as shown in FIG. 12, the illumination effect can be further increased.

Further, if the diaphragm 10 constituting the speaker body has a glossy surface, it is possible to effectively reflect the light emitted from the light emitters 13 and 14 through the lens 12. Furthermore, if a holographic film is attached to the surface of the diaphragm 10, the coloring effect is increased and the illumination effect can be greatly increased.

In the speaker with illumination according to the present invention, the illumination unit 11 attached to the speaker main body is separated from the speaker main body, uses another reflector instead of the diaphragm, and is provided with a circuit similar to the above lighting circuit. If it is, it can be used as illumination for display itself.

It is a schematic sectional drawing which shows an example of the speaker with illumination concerning this invention. It is a top view of the lens which comprises the speaker with illumination concerning this invention. It is a longitudinal cross-sectional view along the XX line in FIG. It is a bottom view of the lens which comprises the speaker with illumination concerning this invention. It is a perspective view showing the front part of a lens. It is a perspective view showing the back part of a lens. It is a bottom view of the cap with which a lens is mounted | worn. It is a longitudinal cross-sectional view along the YY line in FIG. It is explanatory drawing which shows the assembly process of the 1st light-emitting body in this invention, and a 2nd light-emitting body. It is explanatory drawing which shows the state integrated in a speaker main body. It is a lighting circuit diagram which shows an example of the circuit for lighting illumination. It is a circuit diagram which shows the other example of a 1st light-emitting body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Speaker with illumination 2 Center pole 3 Lower plate 4 Magnet 5 Upper plate 6 Magnetic circuit 7 Frame 8 Voice coil bobbin 9 Damper 10 Diaphragm 11 Illumination part 12 Lens 13 First light emitter A Reflective surface 14 of the first light emitter 14 Second light emitter B Second light emitter reflecting surface 15 Lens cavity 16, 17 Projection strip formed on reflecting surface 18 Center pole through hole 19 Cap 20, 30 Substrate 21, 31 Light emitting diode 22, 23 Lead Line 40 lighting circuit

Claims (16)

While placing a columnar lens inside the voice coil bobbin on the magnetic circuit,
A first light emitter is disposed above the lens, and a second light emitter is disposed in the lower part of the lens,
A first reflecting surface for refracting the light of the first light emitter is formed on the upper portion of the lens, and a second reflecting surface for refracting the light of the second light emitter is formed on the inner peripheral surface of the lower portion of the lens. ,
An illumination speaker characterized in that a part of the input signal of the speaker is shunted to the lighting circuit for lighting each of the light emitters, and the luminance of at least one of the light emitters is changed in synchronization with the input signal. . The lens is
2. The illuminated speaker according to claim 1, wherein the speaker is made of transparent resin or glass. The lens is
There is a through hole in the center, and the lower end is fixed to the upper surface of the center pole of the lower plate constituting the magnetic circuit, and the tip protrudes from the upper end of the voice coil ibobin. The speaker with illumination according to claim 1 or 2, wherein a mounting portion with an enlarged diameter for mounting the first light emitter is integrally formed. Each of the reflective surfaces is
The speaker with illumination according to any one of claims 1 to 3, wherein the speaker is concavely curved with respect to an opposing light emitter. Each of the reflective surfaces is
The concave and convex portions extending radially from the central through hole to the outer peripheral portion are divided at predetermined intervals, and the concave and convex portions of each reflecting surface are arranged so as not to overlap each other in the vertical direction. The illuminated speaker according to claim 4, wherein the speaker is illuminated. The convex portion is
The speaker with illumination according to claim 5, wherein the speaker is formed in a step-down shape from the outer peripheral portion toward the central portion. The lens is
The illumination-equipped speaker according to claim 1, wherein a cap is mounted on the tip portion or the mounting portion of the first light emitter. The cap is
The speaker with illumination according to claim 7, wherein the speaker is made of a transparent material, and the inside thereof is divided at a predetermined interval by a plurality of convex portions extending radially from the central portion. Each of the light emitters is
The illuminated speaker according to claim 1, comprising a light emitting diode, a substrate on which the light emitting diode is mounted, and a lead wire attached to the substrate. Each of the light emitters is
The illumination according to claim 1 or 9, wherein the first light emitter is configured to be synchronized with an input signal of a speaker, and the second light emitter is configured to emit light in an input signal standby state. Speaker. The first illuminant is
The speaker with illumination according to claim 9 or 10, wherein a plurality of light emitting diodes are arranged on a circumference. The plurality of light emitting diodes are:
The speaker with illumination according to claim 11, wherein the speaker is composed of at least two colors. The second light emitter is
13. The self-flashing IC built-in type in which no signal is detected in an input signal standby state, standby is canceled, and R, G, B whose colors change steplessly can be combined. Illuminated speaker as described. Each of the light emitters is
The luminance is changed in a stepless manner by a reference transmission circuit provided in the lighting circuit, while the luminance is changed in synchronization with an input level when the speaker is driven. Illuminated speaker as described in 1. The reference transmission circuit is
The speaker with illumination according to claim 14, which has a strobe function for constantly turning on and off light. The first illuminant is
The lead wire is connected to the lead wire constituting the second light emitter through the through hole of the lens, and the tip of the lead wire constituting the second light emitter is the central portion of the magnetic circuit. The speaker with illumination according to claim 9, wherein the speaker is connected to a lighting circuit through a through hole formed in the lighting device.