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DESCRIPTION JP2004128641

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DESCRIPTION JP2004128641
An object of the present invention is to make a speaker system compact by housing an electronic
circuit unit in the speaker. A magnetic circuit (24), a voice coil (28) coupled so as to fit in a
magnetic gap (25) of the magnetic circuit (24), and a diaphragm coupled to the voice coil (28) In
the speaker, an electronic circuit portion 70 supported by a frame 26 forming the outer
periphery of the speaker main body is housed. [Selected figure] Figure 1
スピーカ
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker used for various acoustic devices, information communication devices, and mobile
communication devices. [0002] A conventional speaker will be described below. FIG. 11 shows a
cross-sectional view of a conventional speaker. As shown in FIG. 11, conventionally, the magnet
circuit 1 is configured by sandwiching the magnetized magnet 1 by the upper plate 2 and the
lower plate 3. A voice coil 8 is coupled so as to fit in the magnetic gap 5 of the magnetic circuit 4,
a diaphragm 7 which is a diaphragm is coupled to the voice coil 8, and a frame 6 is adhesively
coupled to the peripheral portion of the diaphragm 7; The speaker 55 is configured. Next, lead
wire 13 of voice coil 8 is drawn along diaphragm 7 to eyelet 14, which is a relay point with gold
wire 12 provided on diaphragm 7, and is connected by soldering, and then dust is attached to
diaphragm 7 The cap 9 is adhered. Furthermore, the gold wire 12 is drawn to the terminal 11
while forming, and is connected to the terminal 11 by soldering. FIG. 12 shows a block diagram
of a conventional speaker until it is driven. The power supply function 51 for driving the
electronic circuit unit 50 is a radio wave modulated and transmitted from a transmission source.
The power is supplied and received by the receiving function 52, and the signal is demodulated
by the demodulating function 53 to obtain an audio signal. Next, the audio signal is amplified by
the amplification function 54 to a level at which the speaker 55 can be driven and supplied to the
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speaker 55. At this time, the audio signal supplied to the speaker 55 passes through the
amplification function 54, and then the speaker cord 56 is drawn around to the terminal 11 of
the speaker 55 and is connected to the terminal 11. As prior art document information related to
the invention of this application, for example, Patent Document 1 is known. [Patent Document 1]
Japanese Patent Application Laid-Open No. 9-70093 [0010] In the speaker shown in FIG. 11, the
electronic circuit unit 50 is installed outside the main body of the speaker 55. It is necessary to
secure a place for installing the circuit unit 50 separately from the speaker 55, which has a
problem in making the speaker system compact. Further, there are a speaker cord 56 for
inputting an electric signal from the set side, a terminal 11 for connecting the same, and a gold
wire 12 for supplying an audio signal to the voice coil 8. The terminal 11 and the gold wire 12
only exist for inputting an electrical signal, and do not contribute to the improvement of the
acoustic characteristics of the speaker 55.
On the other hand, the cost of these parts, the cost required to combine them, and the cost of
their production facilities account for a large proportion of the cost of the entire system including
the speaker 55, thereby reducing the productivity and cost of the entire system. Had a challenge
for In particular, when the distance between the set side and the speaker 55 is very long, the cost
of the long routed speaker cord 56 sometimes exceeds the cost of the speaker 55. Therefore, the
present invention is intended to integrate the speaker and the electronic circuit unit by housing
the electronic circuit unit in the speaker, thereby realizing the downsizing of the speaker system.
Further, the present invention provides an excellent speaker capable of realizing cost reduction
by reducing the number of parts of the speaker by eliminating the speaker cord, the terminal and
the gold wire. In order to solve this problem, the invention according to claim 1 of the present
invention, in particular, is to fit in the magnetic circuit and the magnetic gap of the magnetic
circuit. A voice coil coupled to the voice coil, a diaphragm coupled to the voice coil, and a frame
to which an outer peripheral portion of the diaphragm is fixed, wherein the diaphragm forms a
recess, and the voice coil is formed in the recess The electronic circuit unit electrically connected
to the speaker is accommodated in the speaker. With this configuration, the speaker and the
electronic circuit unit can be integrated, and a compact speaker system can be realized.
According to a second aspect of the present invention, in particular, the electronic circuit portion
is the speaker according to the first aspect, which is accommodated in the recess while being
fixed to the frame. It is possible to drive the speaker without According to a third aspect of the
present invention, in particular, the electronic circuit portion is a speaker according to the first
aspect, which has a receiving function, a demodulation function, an amplification function, and a
power supply function. It is possible to receive a signal for driving the signal by radio waves,
convert it into a signal that can drive the speaker, and reproduce it. According to a fourth aspect
of the present invention, in particular, a magnetic circuit, a voice coil coupled to the magnetic gap
of the magnetic circuit, and a diaphragm coupled to the voice coil. The speaker forms a recess
inside the speaker by the diaphragm, and the recess contains a power generation function
supported by a frame forming the outer periphery of the speaker body, and the speaker is driven
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by this configuration. The speaker can be used as a generator, and energy efficiency can be
improved, when vibration system parts are oscillating due to vibration or the like.
According to a fifth aspect of the present invention, in particular, a magnetic circuit, a voice coil
coupled so as to fit in a magnetic gap of the magnetic circuit, and a diaphragm coupled to the
voice coil The speaker has a recess formed inside the speaker by the diaphragm, and the recess
contains a power generation function and a storage function supported by a frame forming the
outer periphery of the speaker body. When used as a generator, it is possible to store electricity,
and this storage of electricity can store extra energy. According to a sixth aspect of the present
invention, in particular, a magnetic circuit, a voice coil coupled so as to fit in a magnetic gap of
the magnetic circuit, and a diaphragm coupled to the voice coil The speaker is a speaker in which
a recess is formed inside the speaker by the diaphragm, and an electronic circuit portion
supported by a frame forming the outer periphery of the speaker main body and a power
generation function are accommodated in the recess. It is possible to receive a signal for driving
the signal by radio waves, convert it into a signal that can drive the speaker, and reproduce it.
According to a seventh aspect of the present invention, in particular, a magnetic circuit, a voice
coil coupled so as to fit in a magnetic gap of the magnetic circuit, and a diaphragm coupled to the
voice coil The speaker is a speaker in which a recess is formed inside the speaker by the
diaphragm, and an electronic circuit portion supported by a frame forming the outer periphery of
the speaker main body, a power generation function, and a storage function are accommodated
in the recess. Therefore, a series of reproduction functions of receiving a signal for driving the
speaker by radio waves, converting it into a signal capable of driving the speaker, and
reproducing the signal are realized by the speaker alone without receiving the supply of the
external power supply. It becomes possible. According to an eighth aspect of the present
invention, in particular, the speaker according to any one of the fifth and seventh aspects,
wherein the storage function has at least a storage battery, and the storage battery is detachable.
With this configuration, the power supply for driving the speaker can be realized by a battery
other than the storage battery. As a result, it is possible to expand the application of power
supply, such as charging the storage battery with another charger or enabling the use of
disposable batteries. According to a ninth aspect of the present invention, in particular, any one
of the fourth to eighth aspects, wherein the power generation function stored in the recess in the
speaker and the storage function provided outside the speaker are connected. It is a speaker as
described in one, By this structure, delivery of the electric power with a speaker and the electrical
storage function provided in the exterior is attained.
The invention according to claim 10 of the present invention particularly relates to any one of
claims 4 to 8 in which the storage function stored in the recess in the speaker and the power
generation function provided outside the speaker are connected. It is a speaker as described in
one, By this structure, delivery of the electric power of a speaker and the electric power
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generation function provided in the exterior is attained. The invention according to claim 11 of
the present invention is particularly applicable to any one of claims 9 or 10, wherein the
connection between the main body of the speaker and the storage function or the power
generation function provided outside can be made intermittent. It is the described speaker, and
with this configuration, it is possible to arbitrarily interrupt connection by passing power
between the speaker and an externally provided power storage function or power generation
function, and it is possible to realize a desired state. BEST MODE FOR CARRYING OUT THE
INVENTION Embodiment 1 Hereinafter, embodiments of the present invention will be described
with reference to the drawings. FIG. 1 shows a cross-sectional view of the speaker in accordance
with the first exemplary embodiment of the present invention. In FIG. 1, the magnetized circuit
21 is configured by sandwiching the magnetized magnet 21 by the upper plate 22 and the lower
plate 23. A voice coil 28 is coupled so as to fit in the magnetic gap 25 of the magnetic circuit 24,
a diaphragm 27 which is a diaphragm is coupled to the voice coil 28, and a frame 26 is
adhesively coupled to the peripheral portion of the diaphragm 27; The speaker 75 is configured.
Here, in the present invention, a recess is formed by the diaphragm 27 which is a vibration
system component of the speaker 75, and the power supply function 71 and the receiving
function 72 supported by the frame 26 forming the outer periphery of the speaker 75 main body
in the recess. And an electronic circuit unit 70 having a demodulation function 73 and an
amplification function 74. According to this configuration, since the electronic circuit unit 70 is
housed in the speaker 75, the speaker 75 and the electronic circuit unit 70 can be integrated,
and the speaker system can be made compact. In addition, the signal for driving the speaker 75
is transmitted by radio wave and is directly received by the electronic circuit unit 70 provided in
the vibration system of the speaker 75, thereby eliminating the speaker cord, the terminal and
the gold wire, and the speaker 75 and the system The cost reduction can be realized by the
reduction of the number of parts and the number of production man-hours, especially when it is
difficult to draw the speaker cord long, such as attaching a speaker to a high ceiling or a car
cabin, Demonstrates a significant cost reduction effect.
Furthermore, by not using the gold wire, the vibration system can be made to oscillate without
weight load unevenness and resistance to the vibration due to the gold wire, so that rolling and
gap defects can be reduced and stable amplitude can be realized. be able to. In addition, breakage
due to amplitude fatigue of the gold wire, which has conventionally been a problem, and
defective contact or contact with the frame 26, diaphragm 27, damper 31 or the like due to
forming failure of the gold wire can be prevented. FIG. 2 is a block diagram showing the process
of driving the loudspeaker according to the present invention. The electronic circuit unit 70 has
the radio wave modulated and transmitted from the transmission source coupled to the vibration
system of the loudspeaker 75. Signal processing to drive the speaker 75. That is, the power
supply function 71 supplies power, the reception function 72 receives radio waves, and the
demodulation function 73 demodulates this signal to obtain an audio signal. Next, the audio
signal is amplified by the amplification function 74 to a level at which the speaker 75 can be
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driven and supplied to the voice coil 28 of the speaker 75. With the above configuration, by
housing the electronic circuit portion in the speaker, the speaker and the electronic circuit
portion can be integrated, and the speaker system can be made compact. In addition, parts of the
speaker cord, terminal, and gold thread can be reduced, and processes such as routing of the
voice coil lead wire to the diaphragm, creation of a relay point with the gold thread, and
soldering can also be reduced. . Therefore, since the cost of parts and the production cost for
combining these parts can also be reduced, these production facilities are also unnecessary, and
cost reduction can be realized in parts, production, facilities, etc. it can. Second Embodiment The
invention according to the fourth aspect of the present invention will be described below with
reference to the drawings using a second embodiment of the present invention. FIG. 3 shows a
cross-sectional view of a loudspeaker in accordance with a second exemplary embodiment of the
present invention. The feature of the present embodiment is that the vibration system parts of
the speaker 75 are provided with the power generation function 76. It comprises using the voice
coil 28 which provided the coil 28A for electric power generation. With this configuration, the
speaker 75 can be used as a generator when the speaker 75 is driven or when the vibration
system is oscillating due to external vibration or the like even when the speaker 75 is not driven.
Efficiency can be improved.
Third Embodiment The invention according to the fifth aspect of the present invention will be
described below with reference to the drawings using the third embodiment of the present
invention. FIG. 4 shows a cross-sectional view of the speaker in the third embodiment of the
present invention. The feature of the present embodiment is that the vibration system parts of
the speaker 75 are provided with the power generation function 76 and the storage function 77.
With this configuration, when the speaker 75 is used as a generator, it is possible to store
electricity, and extra energy can be stored. Fourth Embodiment The invention according to the
sixth aspect of the present invention will be described below with reference to the drawings
using the fourth embodiment of the present invention. FIG. 5 shows a cross-sectional view of the
speaker 75 in the fourth embodiment of the present invention. The feature of the present
embodiment is that the vibration system parts of the speaker 75 are configured by including the
electronic circuit unit 70 having the power supply function 71, the reception function 72, the
demodulation function 73 and the amplification function 74, and the power generation function
76. is there. With this configuration, it is possible to receive a signal for driving the speaker 75
by radio waves, convert it into a signal that can drive the speaker 75, and reproduce it. Fifth
Embodiment The invention according to the seventh aspect of the present invention will be
described below with reference to the drawings using the fifth embodiment of the present
invention. FIG. 6 is a cross-sectional view of a loudspeaker according to a fifth embodiment of the
present invention. The feature of this embodiment is that the vibration system part of the
speaker 75 is provided with an electronic circuit unit 70 provided with a power supply function
71, a reception function 72, a demodulation function 73 and an amplification function 74, a
power generation function 76 and a storage function 77. It is the thing that According to this
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configuration, a series of reproduction functions of receiving a signal for driving the speaker 75
by radio waves, converting it into a signal capable of driving the speaker 75, and reproducing the
signal without receiving the supply of the external power supply itself. It can be completed and
realized. Sixth Embodiment The invention according to the eighth aspect of the present invention
will be described below with reference to the drawings using the sixth embodiment of the
present invention. FIG. 7 shows a cross-sectional view of the speaker in the sixth embodiment of
the present invention. The feature of the present embodiment is that at least the storage battery
78 is provided in the storage function 77, and the storage battery 78 is configured to be
detachable. With this configuration, a power source for driving the speaker 75 can be realized by
a battery such as a dry cell battery other than the storage battery 78.
As a result, the application of power supply can be expanded, such as charging the storage
battery 78 with another charger or enabling the use of a disposable battery. Seventh
Embodiment The invention according to the ninth aspect of the present invention will be
described below with reference to the drawings using a seventh embodiment of the present
invention. FIG. 8 is a cross-sectional view of a loudspeaker according to a seventh embodiment of
the present invention. A feature of the present embodiment is that the power generation function
76 provided in the vibration system of the speaker 75 and the storage function 79 provided
outside the speaker 75 are connected. With this configuration, power can be exchanged between
the speaker 75 and the storage function 79 provided outside. Eighth Embodiment The invention
according to the tenth aspect of the present invention will be described below with reference to
the drawings using an eighth embodiment of the present invention. FIG. 9 is a cross-sectional
view of a loudspeaker according to an eighth embodiment of the present invention. A feature of
the present embodiment is that the storage function 77 provided in the vibration system of the
speaker 75 and the power generation function 80 provided outside the speaker 75 are
connected. With this configuration, delivery of power from the power generation function 80
provided outside to the speaker 75 becomes possible. Embodiment 9 The invention according to
claim 11 of the present invention will be described below with reference to the drawings, using
Embodiment 9 of the present invention. FIG. 10 is a cross-sectional view of a loudspeaker
according to a ninth embodiment of the present invention. A feature of the present embodiment
is that the connection between the speaker 75 according to claim 8 and the storage function 79
or the power generation function 80 provided outside can be made intermittent. With this
configuration, the connection between the speaker 75 and the power storage function 79 or the
power generation function 80 provided outside can be arbitrarily interrupted or interrupted.
Therefore, power can be stored in the storage function 79 provided outside from the speaker 75,
and conversely, power can be stored in the speaker 75 from the storage function 79 or the
power generation function 80 provided outside, so the delivery of the power is performed. It can
be realized freely. As described above, according to the speaker of the present invention, the
recess is formed by the vibration system component of the speaker, and the power supply
function and the receiving function supported by the frame forming the outer periphery of the
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speaker body in the recess are described. And an electronic circuit unit having a demodulation
function and an amplification function.
According to the present invention, since the electronic circuit unit is housed in the speaker, the
speaker and the electronic circuit unit can be integrated, and the speaker system can be made
compact. In addition, by transmitting a signal for driving the speaker by radio waves and directly
receiving the vibration system parts of the speaker, parts of the speaker cord, the terminal and
the gold thread wire can be reduced, and the speaker is connected to the speaker cord, It is
possible to reduce the number of steps such as coupling of the terminal to the frame, routing of
the voice coil lead wire to the diaphragm, creation of a junction with the gold wire, and soldering
of the gold wire. Furthermore, since the cost of parts and the cost of production for combining
these parts can be reduced, these production facilities are also unnecessary, and cost reduction
can be realized in parts, production, facilities, etc. it can. BRIEF DESCRIPTION OF THE
DRAWINGS FIG. 1 is a cross-sectional view of a loudspeaker according to an embodiment of the
present invention. FIG. 2 is a block diagram of the same embodiment. FIG. 3 is a loudspeaker
according to another embodiment of the present invention. FIG. 4 is a sectional view of a
loudspeaker according to another embodiment of the present invention. FIG. 5 is a sectional view
of a loudspeaker according to another embodiment of the present invention. FIG. 6 is a
loudspeaker according to another embodiment of the present invention. FIG. 7 is a sectional view
of a loudspeaker according to another embodiment of the present invention. FIG. 8 is a sectional
view of a loudspeaker according to another embodiment of the present invention. FIG. 9 is a
sectional view of another embodiment of the present invention. FIG. 10 is a cross-sectional view
of a speaker according to another embodiment of the present invention. FIG. 11 is a crosssectional view of a conventional speaker. FIG. 12 is a block diagram of the conventional speaker.
1 magnet 22 upper plate 23 lower plate 24 magnetic circuit 25 magnetic gap 26 frame 27
diaphragm 28 voice coil 31 Damper 70 electronic circuit portion 71 power supply function 72
receiving function 73 demodulation function 74 amplifying function 75 speaker
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