JP2008025968A - Cooking range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooking range hood having a sound transmitting function capable of emitting a sound with stabilized sound volume and sound quality over a long term. <P>SOLUTION: This cooking range hood comprises a speaker 14 for emitting a sound by converting a voice signal outputted from a sound source device 8 to vibration. The speaker 14 includes a piezoelectric oscillator 9 on the reverse side of an end rail 4 of a range hood A, which is not exposed to contaminant such as waste gas generated during cooking, and a sound such as music or voice emitted from the sound source device 8 is transmitted to kitchen side by vibrating the end rail 4 by the piezoelectric oscillator 9. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a range hood that is installed above a cooking device and is used for sucking and capturing waste gas generated by cooking and exhausting it to the outdoors, and in particular, a sound source device placed in another place The present invention relates to a range hood equipped with a sound transmission function for listening to music, voices, etc. emitted from the sound source while cooking.

In recent years, there is a tendency to enjoy cooking work while listening to music and voices emitted from sound source devices such as televisions (TVs), radios, and other audio devices placed in places other than the kitchen.
However, in the kitchen, the noise of operating noise of the range hood (such as the wind noise of the exhaust fan and the rotation of the fan motor) that comes with the use of cooking utensils, and the sound of falling tap water and cutting board noise. In the environment.
Therefore, for example, sound source devices placed in the living room or dining room, especially when watching TV, cooking in an environment where the TV screen looks far away but the sound emitted from the TV is very difficult to hear Currently, they are forced to work.

Therefore, in order to eliminate difficulty in listening to sound from the sound source device due to noise, a range hood provided with a speaker has been proposed (see, for example, Patent Document 1).
The range hood described in Patent Document 1 processes and amplifies a sensor microphone for detecting noise such as wind noise of an exhaust fan and rotation sound of a fan motor, and a detection signal from the sensor microphone. And a speaker driven by an output signal from the signal processing amplifier circuit.
Accordingly, music, voice, and the like from a sound source device placed in a place other than the kitchen are sent to a worker who is cooking through a speaker.
Japanese Patent No. 2637025 (see claim 1, paragraph numbers 0009 to 0011 and FIG. 1)

  By the way, the speaker attached to the range hood described in Patent Document 1 emits a sound by converting an electrical signal of music or voice built in a speaker box or the like of an audio device into vibration of air. For example, it is a general cone type speaker configured to transmit sound by vibrating air by vibration of a diaphragm when a diaphragm made of cone paper or the like is driven by a permanent magnet and a coil.

Therefore, when attaching such a cone-type speaker to a range hood, it is essential to attach the cone-type speaker in a state that allows air to flow with the kitchen side outside the range hood.
Therefore, in order to ensure air circulation (air propagation) from the inside of the range hood to the kitchen side, for example, a hood main body to which the speaker is attached is provided with a distribution window for distribution to the kitchen side, and the speaker is installed. Expose to the kitchen side. Alternatively, the range hood needs to be provided in the range hood by distributing it to the kitchen side, for example, by attaching the speaker in an exposed state inside a hood main body having a downward opening that sucks and captures oily smoke and waste gas generated by cooking.

However, above the cooking utensil where the range hood is installed, there are many various pollutants such as oily smoke, water vapor, waste gas generated during cooking, and indoor dust attracted by the exhaust fan. The environment is severe.
For this reason, the speaker attached to the range hood in an exposed or bare state is protected by a metal guard, etc., but it is always in an environment where oils and fats contained in waste gas are likely to adhere. By being exposed, deposits accumulate on the diaphragm in a short period of time.
The diaphragm on which the deposits are deposited has a problem in that the braking capacity for vibrating the air is greatly reduced, resulting in a problem that the volume and sound quality of the speaker are reduced in a short period of time. .

  In order to recover the deterioration of the function of the diaphragm due to adhesion of oil and fat, it is conceivable to remove the deposit by washing the diaphragm. It is difficult to remove the kimono.

  Moreover, conventionally, there is a possibility that the design of the range hood may be impaired due to the need to expose the speaker to the indoor surface of the kitchen.

  Accordingly, the present invention has been devised to solve the above-described problems, and it is an object of the present invention to provide a range hood having a sound transmission function capable of emitting sound with a stable volume and sound quality over a long period of time. .

In order to solve the above problems, the present invention is a range hood for sucking and capturing waste gas generated by cooking and exhausting it outdoors, by converting an audio signal output from a sound source device into vibration. A speaker that emits sound is provided in a hood component that is not exposed to pollutants such as waste gas, and the speaker is configured to transmit sound by vibrating the hood component by a piezoelectric vibrator. (Claim 1).
Here, the hood component member is a curtain plate attached so as to hide an exhaust duct and the like, and it is preferable that the piezoelectric vibrating body is attached to the back side of the curtain plate. 2).

According to the configuration of claim 1, the piezoelectric vibrating body that vibrates when an audio signal output from the sound source device is applied vibrates with an amplitude corresponding to the voltage level of the applied audio signal, and the hood component member Vibrate. Thereby, sounds such as music and voices emitted from the sound source device are sent from the hood component to the kitchen side.
Also, when contaminants such as waste gas generated during cooking, especially oils and fats contained in waste gas, adhere to the hood component that is vibrated by the piezoelectric vibrator, the hood component repeats. Cleaning is possible. As a result, sounds such as music and voice can be sent to the kitchen with a stable volume and sound quality over a long period of time.
By configuring as in claim 2, in addition to the action described in claim 1, the vibration of the piezoelectric vibrator is propagated to the entire planar curtain, and is sent from the curtain to the kitchen. The volume and quality of music and voice can be obtained. Thereby, it can be expected to provide a kitchen space having a comfortable sound environment that can send high-quality music and voice to the worker who is cooking.

Further, in the present invention, a range hood provided with an exhaust device for sucking and capturing waste gas generated by cooking and exhausting it outdoors,
A speaker that emits sound by converting a sound signal output from a sound source device into vibration is provided, and the speaker generates sound by vibrating a hood constituent member that is not exposed to contaminants such as waste gas by a piezoelectric vibrator. And the piezoelectric vibrator is connected to an operation switch unit via an electronic volume and a microcomputer, and the operation switch unit is configured to turn on / off the exhaust device and An exhaust operation unit for switching the intensity; and a volume operation unit for adjusting the volume of the speaker, wherein the exhaust operation unit synchronizes with the intensity switching of the exhaust capability of the exhaust device. It is connected to the piezoelectric vibrator via the microcomputer and electronic volume so that the volume can be switched. Wherein (claim 3).

According to the configuration of the third aspect, the piezoelectric vibrating body that vibrates when the audio signal output from the sound source device is applied vibrates with an amplitude corresponding to the voltage level of the applied audio signal, and the hood configuration The member is vibrated. As a result, sounds such as music and voices emitted from the sound source device can be sent to the kitchen side with a stable volume and sound quality over a long period of time.
In addition, the sound volume from the speaker can be automatically switched in synchronism with the operation of switching the exhaust capacity of the exhaust device by the exhaust operation section of the operation switch section. As a result, the worker who performs cooking increases the volume from the speaker by operating the volume operation unit every time the operation of the exhaust system is switched from low operation to middle operation in order to increase the exhaust capacity. There is no need to perform troublesome operations. Therefore, it is possible to provide a range hood having a sound transmission function with excellent handling and convenience.

The range hood of the present invention can send sounds such as music and sound emitted from the acoustic device to the kitchen side by vibrating the hood constituting member as a diaphragm with a piezoelectric vibrating body.
In addition, the piezoelectric vibrator is provided in the hood constituent member so as not to be exposed to pollutants such as waste gas generated during cooking, so that the function is not deteriorated by the pollutant and the hood configuration. When the oil and fat contained in the waste gas adheres to the member, the hood component member can be repeatedly washed, and the deposits can be easily removed. As a result, it is possible to send music, voice, and other sounds emitted from the sound source device to the kitchen side with a stable volume and sound quality over a long period of time.

Further, in the present invention, the plate-shaped curtain plate constituting the range hood is used as a diaphragm, and the piezoelectric vibrator is provided on the back side of the curtain plate that is not exposed to contaminants such as waste gas generated during cooking. Since the sound can be transmitted to the kitchen side by attaching a sound, it is possible to obtain a stable sound volume and sound quality over a long period of time by preventing harmful effects caused by contaminants.
In addition, the vibration of the piezoelectric vibrating body is propagated to the entire planar plate having a large area, and sounds such as music and voice are transmitted from the entire curtain plate to the kitchen side. Thereby, the kitchen space which is excellent in added value and has a comfortable sound environment can be provided with respect to the worker who is cooking.

  In addition, according to the present invention, by adopting a speaker configured to send a sound such as music or voice to the kitchen side by vibrating a curtain plate (hood constituent member) as a diaphragm with a piezoelectric vibrating body, There is no need to expose the speaker to the kitchen side, unlike the range hood. Thereby, it can avoid adding that the design property of the range hood in harmony with a kitchen cabinet etc. is impaired, and can provide the added value of a sound transmission function.

  In addition, according to the present invention, there is provided a range hood having a sound sending function for sending sound such as music or voice emitted from a sound source device to the kitchen side by attaching a piezoelectric vibrating body to a curtain plate or the like. be able to. In other words, since it has a simplified configuration, it can be expected that the existing range hood can be provided with a new added value such as a sound transmission function, which is beneficial.

  Furthermore, according to the present invention, every time the operation of the exhaust device is switched from the low operation to the medium operation and from the medium operation to the high operation in order to increase the exhaust capacity of the exhaust device, the volume operation unit is also operated. Since there is no need to perform troublesome operations such as increasing the volume from the speaker, it is possible to provide a range hood having a sound transmission function that is excellent in handling and convenience for a worker who performs cooking.

  Hereinafter, embodiments of a range hood according to the present invention will be described in detail with reference to the drawings as appropriate.

<Description of First Embodiment>
FIG. 1 is a cross-sectional view illustrating a schematic configuration of the range hood according to the first embodiment, and FIG. 2 is a front view illustrating an operation switch unit provided on a front surface portion of the hood unit.
The type of the range hood is not particularly limited. For example, various types such as a flat type, a boot type, an oven kitchen type, and an island type can be exemplified.
Here, a flat type range hood in which the hood portion has a flat box shape will be described as an example.

≪Configuration of range hood≫
The range hood A is installed at a specified height position that is almost directly above a cooking device (not shown) such as a gas range, and includes oil smoke, water vapor, hot air, waste gas, etc. generated during cooking. These contaminants are sucked and captured and exhausted to the outside through the exhaust duct 1.

  As shown in FIG. 1, the range hood A is provided with an exhaust device 3 communicated with the hood portion 2 on a top plate 2 a of a flat box-shaped hood portion 2 that opens downward. An exhaust duct 1 is provided that is piped from the fan casing 3a to the outside.

In addition, the range hood A includes a curtain plate 4 extending from the top plate 2a of the hood portion 2 to the ceiling B of the building so as to hide the exhaust device 3 and the exhaust duct 1 on the hood portion 2. .
Thus, as shown in FIG. 1, on the back side of the curtain plate 4, the smoke plate, the top plate 2a of the hood part 2, and the oil smoke, water vapor, hot air, waste surrounded by the ceiling B and the wall surface C of the building A space D in which no contaminants such as gas and indoor dust enter is formed.

  As is well known, the curtain plate 4 is made of metal having a predetermined size and a flat plate shape, and the ceiling of the building from the top plate 2a of the hood portion 2 so as to hide the exhaust device 3, the exhaust duct 1, and the like. It is formed so that it can be attached to reach B.

As shown in FIG. 1, the range hood A includes an operation switch unit 5 on the front surface of the hood unit 2. The operation switch unit 5 includes an exhaust operation unit 5a composed of touch-type or push-type switches for switching on / off the operation of the exhaust device 3 and switching the strength of the exhaust capability (see FIG. 2).
The operation switch unit 5 includes an illumination operation unit 5c including touch or push switches for switching on / off the illumination (lamp) 6 (see FIG. 2).

And in this embodiment, the range hood A comprised in this way is equipped with the speaker apparatus 8 for sending a sound to the kitchen side by converting the audio | voice signal from the sound source device 7 into a vibration.
That is, as shown in FIG. 1, a piezoelectric vibrating body 9 of a speaker 14 which will be described later is provided on the back side of the curtain plate 4, and the curtain plate 4 is vibrated by the piezoelectric vibrating body 9 so that it can be placed in a living room other than the kitchen. Sound such as music and voice from the sound source device 7 is sent to the kitchen side.

<< Configuration of Speaker Device of First Embodiment >>
FIG. 3 is a block diagram illustrating a schematic configuration of the speaker device according to the first embodiment. Here, description will be made with reference to FIG. 1 as appropriate.
As shown in FIG. 3, the speaker device 8 is a wired system using an audio signal code 10 for audio signals output from a plurality of sound source devices 7 such as a television (TV), radio, and other audio devices. A selector 11 for inputting is provided, and an electronic volume (Electronic Volume) 12 is connected to the output side of the selector 11. The electronic volume 12 is connected to a piezoelectric vibrating body 9 constituting a speaker 14 via an amplifier 13.
The speaker device 8 includes a microcomputer 15 connected to the selector 11 and the electronic volume 12.

  The speaker device 8 configured in this manner includes a selector 11, an electronic volume 12, an amplifier 13, and a microcomputer 15, excluding the piezoelectric vibrator 9, arranged on the hood portion 2 shown in FIG. 1. And the range hood A is prepared.

  Incidentally, the sound source device 7 is not particularly limited as long as it outputs an audio signal. For example, a television (TV), radio, video, CD and DVD player, other audio devices, and the like can be given.

The selector 11 has a known configuration. That is, a plurality of audio input terminals (not shown) for connecting the other end side of each audio signal cord 10 whose one end side is connected to an external audio output terminal (not shown) such as each earphone jack of the plurality of sound source devices 7. ).
The selector 11 is configured to be able to switch and select a sound signal input from each sound source device 7 via the sound signal code 10, and the sound signal from the selected sound device 7 is converted into an electronic signal. An audio output terminal (not shown) for outputting to the piezoelectric vibrator 9 via the volume 12 and the amplifier 13 is provided.

  The selector 11 is connected to the operation switch unit 5 of the hood unit 2 through the microcomputer 15, and the microcomputer 15 is selected by a sound source selection operation unit (not shown) provided in the operation switch unit 5. For example, the selected audio signal from the sound source device 7 of any one of television, radio, and other audio devices is applied to the piezoelectric vibrating body 9 via the electronic volume 12 and the amplifier 13 based on the selection signal output from It is formed as follows.

  The electronic volume 12 is connected to the operation switch unit 5 via the microcomputer 15, and the volume operation unit 5 b composed of switches such as a knob rotation type, a push type, and a touch type provided in the operation switch unit 5. (See FIG. 2), it is possible to arbitrarily adjust the volume of music or voice sent from the speaker 14 to the kitchen side.

  The microcomputer 15 is necessary for the operation of the range hood A such as switching the strength (high, medium, low) of the exhaust capability of the exhaust device 3 operated by the exhaust operation unit 5a provided in the operation switch unit 5. A circuit board (not shown) and a circuit board (not shown) for outputting a selection signal to the selector 11 based on the selection by the sound source selection operation unit of the operation switch unit 5 as described above are provided. Has been.

The microcomputer 15 automatically switches the volume from the speaker 14 to be sent to the kitchen in synchronism with the switching (high, medium, low) of the exhaust capability of the exhaust device 3 by the exhaust operation unit 5a. A circuit board (not shown) is provided.
That is, the noise value due to the wind noise of the exhaust fan and the rotation sound of the fan motor generated from the exhaust device 3 increases in proportion to the weak operation, medium operation, and high operation of the exhaust device 3.
Therefore, the inventors of the present invention measure noise values generated during the weak operation, the middle operation, and the high operation of the exhaust device 3, respectively. Remember me. The volume of sound sent out from the speaker 14 is adjusted so that the sound and voice can be enjoyed at the optimum volume that the operator is listening to when the exhaust system 3 is not operating. When an operation that can be switched from a weak operation to a medium operation and a strong operation is performed in the exhaust operation unit 5a, it is automatically switched from a low sound volume to a medium sound volume and a high sound volume in synchronization with the switching operation of each operation. The microcomputer 15 includes a circuit board in which a program for outputting a volume signal to the electronic volume 12 is incorporated.

  As shown in FIG. 1, the speaker 14 is configured by attaching a piezoelectric vibrating body 9 to the back side of a curtain plate 4 as a diaphragm. That is, the sound is generated by vibrating the curtain plate 4 by the piezoelectric vibrating body 9 that vibrates by converting the sound signal from the sound source device 7 into vibration. As a result, sounds such as music and voice generated by the sound source device 7 are sent to the kitchen side via the curtain 4.

Incidentally, the piezoelectric vibrating body 9 has a known structure. As an example, there can be mentioned, for example, a piezoelectric multipoint drive type capable of generating a large number of point sound sources on the entire curtain 4.
Moreover, as a method of attaching the piezoelectric vibrating body 9 to the curtain plate 4, for example, an appropriate attachment means such as attachment by a magnet or attachment by an adhesive can be used for the metal curtain plate 4.

Next, an example of the operation of the speaker device 8 according to the first embodiment configured as described above will be described.
For example, when cooking while watching a television as the sound source device 7 placed in the living room, the television is selected by the sound source selection operation unit of the operation switch unit 5 provided on the front surface of the hood unit 2.
As a result, the audio signal output from the television is input to the selector 11 accommodated in the control box 16 through the audio signal code 10 and is input from the selector 11 to the amplifier 13 via the electronic volume 12 and amplified. . The audio signal amplified by the amplifier 13 is applied to the piezoelectric vibrating body 9 attached to the curtain plate 4.

  When the audio signal amplified by the amplifier 13 is applied to the piezoelectric vibrating body 9, the piezoelectric vibrating body 9 vibrates with an amplitude corresponding to the voltage level of the applied audio signal, and this vibration is the curtain of the range hood A. It is transmitted to the plate 4 to vibrate the curtain plate 4. Thereby, sounds such as music and voice are sent from the curtain 4 to the kitchen side. That is, sounds such as music and voices emitted from the television are sent from the curtain 4 to the worker who is cooking in the kitchen.

  Then, during cooking, the operation of switching the operation of the exhaust device 3 from the middle operation to the high operation is performed by the exhaust operation unit 5a of the operation switch unit 5 in order to increase the exhaust capacity, and this operation switching signal is sent to the microcomputer 15. Is output. Then, the microcomputer 15 calculates the noise value at the time of high driving from the stored noise value at the time of middle driving, and the volume for sending from the speaker 14 from the noise value at the time of high driving, This volume signal is output to the electronic volume 12. As a result, the volume of music, voice, or the like sent from the speaker 14 is automatically switched in synchronization with the operation switching operation of the exhaust operation unit 5a and sent from the curtain 4 to the worker who is cooking in the kitchen. . Therefore, it is not necessary to perform troublesome operations such as operating the original volume operation unit 5b for increasing the volume from the speaker 14 to increase the volume of the speaker 14.

<Description of Second Embodiment>
FIG. 4 is a schematic cross-sectional view showing a range hood according to the second embodiment.
In the second embodiment, the configuration of the speaker device 8-1 provided in the range hood A1, particularly, the audio signal from the sound source device 7 is transmitted to the selector 11 by a wireless method.
That is, as shown in FIG. 4, an optical transmission unit 16 for transmitting an audio signal by changing it to an infrared signal, and a far infrared signal transmitted from the optical transmission unit 16 is received and demodulated into an audio signal. By using the optical receiving unit 17, an audio signal is transmitted to the selector 11.
As described above, in the second embodiment, the other components constituting the range hood A1 and the speaker device 8-1 other than the configuration configured to transmit the audio signal to the selector 11 in a wireless manner are the first described above. Since the same reference numerals are given to the same components, the redundant description is omitted.

<< Configuration of Speaker Device of Second Embodiment >>
FIG. 5 is a block diagram illustrating a schematic configuration of the speaker device according to the second embodiment. Here, description will be made with reference to FIG. 4 as appropriate.
In addition to the selector 11, the electronic volume 12, the amplifier 13, and the microcomputer 15 in the first embodiment, the speaker device 8-1 outputs an external sound such as an earphone jack of the sound source device 7 as shown in FIG. The optical transmission unit 16 is connected to a terminal (not shown), and the optical reception unit 17 is connected to each audio input terminal of the selector 11.
In the second embodiment, the optical transmission unit 16 and the optical reception unit 17 are configured to transmit an audio signal from the sound source device 7 to the selector 11 with an infrared signal (wireless). Since the elements are basically the same as those in the first embodiment, the same components are denoted by the same reference numerals, and redundant description is omitted.

≪Configuration of optical transmission unit and optical reception unit≫
FIG. 6 is a block diagram illustrating a schematic configuration of an optical transmission unit and an optical reception unit of the speaker device according to the second embodiment.
As shown in FIG. 6A, the optical transmission unit 16 takes in the plug 18 inserted and connected to the external audio output terminal of the sound source device 7 in order to take in the audio signal from the sound source device 7. An amplifier 19 for amplifying the audio signal, an electric / optical converter 20 for converting the audio signal amplified by the amplifier 19 into a signal for driving an optical signal transmitter 21 described later, and the electric / optical converter 20. And an optical signal transmitter 21 formed of an infrared light emitting diode so as to be driven by a signal converted by the above.

  Therefore, the optical transmission unit 16 can take in the audio signal from the sound source device 7 by connecting the plug 18 to the external audio output terminal of the sound source device 7. The optical transmission unit 16 amplifies the captured audio signal with the amplifier 19, converts the signal into a signal for driving the optical signal transmission unit 21 with the electric / optical converter 20, and transmits the optical signal with the converted signal. The unit 21 is driven to transmit an infrared signal to the optical receiving unit 17.

  As shown in FIG. 6B, the optical receiving unit 17 includes an optical signal receiving unit 22 that receives an infrared signal transmitted from the optical transmitting unit 16, and a light reception signal received by the optical signal receiving unit 22. Is converted into an audio signal, an amplifier 24 that amplifies the audio signal demodulated by the optical / electric converter 23, and an audio signal amplified by the amplifier 24 is input to the selector 11. And a plug 25 that is plugged and connected to the audio input terminal of the selector 11.

  In addition, although it does not specifically limit about the attachment position with respect to the range hood A of this optical receiving unit 17, In this embodiment, it is integrated in the operation switch part 5 with which the front part of the hood part 2 was equipped, or The infrared signal from the optical transmission unit 16 can be received by being provided in the hood unit 2 in the vicinity of the operation switch unit 5.

The speaker device 8-1 according to the second embodiment configured as described above captures the sound signal of the sound source device 7 into the optical transmission unit 16, converts the captured sound signal into an infrared signal, The data is transmitted to the optical receiving unit 17 provided in the unit 2.
Then, the optical receiving unit 17 receives the infrared signal transmitted from the optical transmitting unit 16, demodulates and amplifies the audio signal from the received light signal, and outputs it to the selector 11. After the audio signal is input to the selector 11, the same operation process as in the first embodiment is performed, and the audio signal is applied to the piezoelectric vibrating body 9 attached to the curtain plate 4.

  In the speaker device 8-1 according to the second embodiment, an infrared signal is used as a transmission medium, but it is needless to say that radio waves can be used.

The specific configuration of the embodiment of the present invention is not limited to the above-described embodiment, and there are design changes and the like without departing from the spirit of the present invention described in claims 1 to 2. Are also included in the present invention.
For example, the attachment position (location) of the piezoelectric vibrator with respect to the curtain plate, the number of attachments, and the like can be changed as appropriate. That is, the place to vibrate can be changed as appropriate according to the thickness, material, size (area), etc. of the curtain. In addition, in order to enhance acoustic effects such as music and voice due to vibration, an appropriate device can be added to the flat curtain.

In addition, the range hood includes a hood portion and a duct cover having a substantially square shape in a plan view standing at a substantially central portion on the top plate of the hood portion or positioned on the second half side from the central portion. It is configured.
In other words, in the so-called island type range hood, which is constructed by erecting the duct cover from the top plate of the hood so as to hide the exhaust duct and the exhaust device, a piezoelectric is formed on the inner inner surface of the duct cover. A speaker that emits sound can be obtained by attaching a vibrating body and vibrating the duct cover with a piezoelectric vibrating body.

In addition, the range hood is equipped with a noise detection microphone for detecting the operation sound of the range hood, especially when the exhaust system is activated, and when this noise detection microphone detects noise, the phase is opposite to this detection signal. The noise level generated by the operation of the exhaust device can be lowered by setting the sound (interference sound for canceling noise) to be emitted from the speaker.
Thereby, in addition to the sound transmission function, a silent function for muting the noise of the exhaust device can be added to the range hood.

1 is a cross-sectional view showing a schematic configuration of a range hood according to a first embodiment. It is a front view which shows the operation switch part with which the front part of a hood part is equipped. 1 is a block diagram showing a schematic configuration of a speaker device according to a first embodiment. It is sectional drawing which shows schematic structure of the range hood which concerns on 2nd Embodiment. It is a block diagram which shows schematic structure of the speaker apparatus which concerns on 2nd Embodiment. The optical transmission unit and optical reception unit of the speaker apparatus which concern on 2nd Embodiment are shown, (a) is a block diagram which shows schematic structure of an optical transmission unit, (b) is schematic structure of the optical reception unit. FIG.

Explanation of symbols

A, A1 Range hood 1 Exhaust duct 2 Hood part 3 Exhaust device 4 Curtain plate (hood component)
DESCRIPTION OF SYMBOLS 5 Operation switch part 5a Exhaust operation part 5b Sound volume operation part 7 Sound source device 8,8-1 Speaker apparatus 9 Piezoelectric vibrator 12 Electronic volume 14 Speaker 15 Microcomputer

Claims (3)

It is a range hood for sucking and capturing waste gas generated by cooking and exhausting it outdoors.
It is equipped with a speaker that emits sound by converting the audio signal output from the sound source device into vibration,
The range hood is configured so that sound is transmitted by vibrating a hood constituent member that is not exposed to contaminants such as waste gas by a piezoelectric vibrator.   2. The range hood according to claim 1, wherein the hood constituent member is a curtain plate attached so as to obscure an exhaust duct or the like, and the piezoelectric vibrating body is attached to a rear surface side of the curtain plate. . A range hood equipped with an exhaust device for sucking and capturing waste gas generated by cooking and exhausting it outdoors,
It is equipped with a speaker that emits sound by converting the audio signal output from the sound source device into vibration,
The speaker is configured to transmit sound by vibrating a hood constituent member that is not exposed to a pollutant such as waste gas by a piezoelectric vibrator, and the piezoelectric vibrator is connected via an electronic volume and a microcomputer. Connected to the operation switch,
The operation switch unit includes an exhaust operation unit for switching on and off the exhaust device and switching the strength of the exhaust capability, and a volume operation unit for adjusting the volume of the speaker.
The exhaust operation unit is connected to the piezoelectric vibrating body via the microcomputer and an electronic volume so that the volume of the speaker is automatically switched in synchronization with the switching of the exhaust capability of the exhaust device. A range hood characterized by that.

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