JP2005337584A - Range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a range hood having music replaying function in addition to exhausting function for enjoying a high quality music during cooking and having reduced noises during the operation of an exhaust fan to secure sufficient quietness in a kitchen. <P>SOLUTION: A speaker is mounted on a hood case and a controller is arranged on the hood case or at its vicinity. The controller controls a preselected music to be replayed in the kitchen via the speaker. The controller has a amplifier connected to the speaker and a control circuit connected with an input terminal on a wall face for controlling the amplifier. The controller outputs antiphase sounds from the speaker in accordance with sounds detected by a microphone arranged in the hood case. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a range hood installed above a stove in a kitchen such as a system kitchen, for example.

  Generally, a system kitchen has a base cabinet in which a stove and a sink are arranged on a counter on the upper surface, and a range hood is installed above the stove of the base cabinet. Conventionally, in this kind of kitchen, there is no dedicated audio device for the kitchen, so when listening to music (including audio) while cooking in the kitchen, commercially available sound equipment such as radio-sease is used in the kitchen. The fact is that I listen to it in the vicinity. In addition, since such an acoustic device is not related to the claims of the present invention, there is no prior art document information to be described.

  However, when a sound cassette such as a radio-cassette is placed in the kitchen to listen to music in this way, the kitchen itself becomes narrow and the convenience of the kitchen is inferior, and it is difficult to place a relatively large speaker with excellent acoustic characteristics. However, there is a problem that the sound quality of the reproduced music is inferior. In addition, the range hood installed above the stove only has an exhaust function for exhausting smoke generated during cooking to the outside, and the operating noise of the exhaust fan is used as noise in the kitchen during use of the range hood. There is also a problem that it is difficult to ensure sufficient sound and quietness of the kitchen.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a range hood that can add a music reproduction function in addition to an exhaust function and can listen to high-quality music during cooking. It is in. Another object is to provide a range hood capable of reducing noise during operation of the exhaust fan and ensuring sufficient quietness in the kitchen in addition to the above object.

  In order to achieve this object, the invention according to claim 1 of the present invention is a range hood in which an exhaust fan is built in a hood case and is installed above a stove of a kitchen, and a speaker is attached to the hood case. At the same time, a controller is disposed in or near the hood case, and predetermined music is reproduced in the kitchen via the speaker under the control of the controller.

  The controller includes an amplifier connected to a speaker and a control circuit for controlling the amplifier as in the invention described in claim 2, and the control circuit is disposed on a wall surface near the range hood. It is preferable to be connected to an audio device via a terminal.

  Further, as in the invention described in claim 3, the controller preferably emits a sound having an opposite phase from the speaker based on a sound detected by a microphone arranged in a hood case. The microphone is preferably used as the speaker as in the invention described in claim 4.

  Further, as in the invention according to claim 5, the controller has a receiving circuit for receiving infrared rays emitted from a remote controller, and reproduces predetermined music via a speaker based on a signal received by the receiving circuit. It is preferable to do.

  According to the first aspect of the present invention, the speaker is attached to the hood case of the range hood, and the controller is disposed in the hood case or in the vicinity thereof to reproduce predetermined music in the kitchen through the speaker. The music playback function can be added to the range hood with an exhaust function, so that the kitchen user can easily listen to the music while cooking, and the speaker attached to the range hood can be used to play high-quality music. It is possible to provide a range hood that provides a comfortable and comfortable kitchen space.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the controller has an amplifier and a control circuit, and the control circuit has an input terminal disposed on the wall surface near the range hood. Therefore, it is possible to reproduce desired music in the kitchen and to improve the usability of the range hood simply by connecting an acoustic device such as a radio cassette player to the input terminal.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, based on the sound detected by the controller with the microphone arranged in the hood case, the sound of the opposite phase is obtained. Since the sound is emitted from the speaker, the noise of the exhaust fan can be canceled by the sound of the opposite phase, the noise when using the exhaust fan can be reduced, and sufficient silence can be secured in the kitchen, and the music itself reproduced from the speaker It is possible to play clear music in the kitchen.

  Further, according to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the speaker attached to the range hood is also used as a microphone. One of them can be used as a microphone, and the configuration for reproducing music can be simplified and formed at low cost.

  Furthermore, according to the fifth aspect of the invention, in addition to the effects of the first to fourth aspects, predetermined music is reproduced from the speaker based on the signal from the remote control received by the receiving circuit of the controller. Therefore, music playback via the range hood speaker can be remotely controlled, and the operability can be improved.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 6 show an embodiment of a range hood according to the present invention. FIG. 1 is a front view of a system kitchen using the range hood, FIG. 2 is a perspective view of the range hood, and FIG. 3 is a range hood. FIG. 4 is a cross-sectional view thereof, FIG. 5 is a block diagram of a control system, and FIG.

  In FIG. 1, a system kitchen 1 (hereinafter referred to as kitchen 1) has a counter 3 disposed on the top surface, a base 4 provided with a stove 4 on the right end side, for example, and a sink 5 or the like on the left end side. A cabinet 2 is provided. This base cabinet 2 is installed on the floor surface 6 and its rear surface is installed in a substantially abutting state on a kitchen panel 7 fixed to a wall panel.

  A wall cabinet 8 is installed on the wall panel above the base cabinet 2, and a range hood 9 is installed above the stove 4 of the base cabinet 2 at the right end of the wall cabinet 8. As shown in FIGS. 2 to 4, the range hood 9 includes a hood case 10, an exhaust fan 11 built in the hood case 10, a sound reproducing device to be described later, and the like.

  The hood case 10 protrudes with a guide plate 13 and the like in front of the lower part of the hood case 10 in a substantially arc shape, and a flue 14 (see FIG. 4) is formed inside the left and right side plates, respectively. 15 is formed by a detachable guide portion 10a and a curtain plate portion 10b integrally provided on the upper portion of the guide portion 10a, and is composed of a sirocco fan, a propeller fan, or the like on the rear side of the guide portion 10a. The exhaust fan 11 is incorporated.

  The exhaust duct 16 connected to the exhaust port of the exhaust fan 11 is drawn out of the wall panel 18 through, for example, the upper plate 17 of the guide portion 10a and sucked by the guide portion 10a. Is exhausted to the outside. Further, the curtain plate portion 10b provided integrally on the upper portion of the guide portion 10a is composed of a front curtain plate 20, a horizontal curtain plate 21, an upper surface plate (or ceiling panel 22), a rear plate (or wall panel 18), and the like. It is formed in a box shape, and the above-described exhaust duct 16 is positioned below the inside thereof, and the sound reproducing device is disposed inside.

  The sound reproducing device includes a pair of left and right speakers 23 attached to the front curtain plate 20, a microphone 24 attached to a substantially intermediate position in the left-right width direction of the front curtain plate 20, and an upper plate 17 of the guide portion 10a. It has a controller 25 and the like arranged. As shown in FIG. 1, the controller 25 is connected to an input terminal 26 provided on the side wall panel 18 of the range hood 9 and connected to an acoustic device 27 such as a radio cassette or a CD player.

  As shown in an enlarged view in FIG. 4, the speaker 23 has a heat-resistant diaphragm 23a such as PP or metal foil. The diaphragm 23a is directed toward the interior of the curtain plate portion 10b and the frame 23b is It is attached to the inner surface of the front curtain plate 20. In addition, a plurality of slits 28 are formed in the front curtain plate 20 of the curtain plate portion 10a to which the speaker 23 is attached, and music reproduced from the slits 28 into the curtain plate portion 10a is stored in the range hood 9. It is designed to be regenerated in the kitchen outside.

  Note that a receiving circuit 30 that forms a part of the controller 25 is provided, for example, on the tip portion of the lower surface on the right side of the guide portion 10a (the bottom wall portion of the flue 14). Infrared signals to be received are received. A lighting device 31 (see FIG. 2) is disposed on the lower surface on the rear side of the guide portion 10a, and a number of slits 32 mainly acting for ventilation are provided on the upper portion of the front curtain plate 20 of the curtain plate portion 10b. Is provided.

  FIG. 5 shows a block diagram of the control system of the range hood 9, which will be described below. The controller 25 for controlling the operation of the range hood 9 has a control circuit 34 made of, for example, a microcomputer, and the input side of the control circuit 34 has the receiving circuit 30, the input terminal 26, and the motor 11 a of the exhaust fan 11. And the microphone 24 is connected via a microphone amplifier 35 and an A / D conversion circuit 36. A pair of speakers 23 is connected to the output side of the control circuit 34 via a D / A conversion circuit 37 and a power amplifier 38.

  The controller 25 receives a predetermined infrared signal from a remote controller 29 that is a wireless type and has a music reproduction switch, an exhaust switch, and the like (not shown) by the receiving circuit 30, and in response to a control signal from the control circuit 34, an input terminal The sound device 27 connected to the H. 26 is operated and the music is reproduced from the speaker 23 via the D / A conversion circuit 37 and the power amplifier 38. At this time, a sound having a phase opposite to that detected by the microphone 24 is emitted from the speaker 23.

  Further, the controller 25 can operate the exhaust fan 11 by rotating the motor 11 a according to a control signal from the control circuit 34. The configuration of the controller 25 is not limited to this example, and any other appropriate circuit configuration that functions as an active noise controller can be adopted.

  Next, an example of how to use the range hood 9 configured as described above will be described. First, when the noise of the range hood 9 as shown in FIG. 6A is detected by the microphone 24 when the motor 11a of the exhaust fan 11 is rotated, the control circuit 34 of the controller 25 has an opposite phase to this detection signal. The sound as shown in FIG. 6B is set to be emitted from the speaker 23. As a result, the noise level during operation of the exhaust fan 11 becomes substantially “0” level as shown by the straight line in FIG.

  When an audio device 27 capable of reproducing favorite music is connected to the input terminal 26 provided on the wall panel 18, and the music reproduction switch of the re-common 29 is turned on in this state, the radio signal is received by the reception circuit of the controller 25. 30, the power switch of the acoustic device 27 is turned on from the control circuit 34 via the input terminal 26, and the acoustic device 27 is activated to reproduce predetermined music (including sound).

  The reproduction signal of the audio equipment 27 is supplied to the power amplifier 38 via the input terminal 26, the control circuit 34, and the D / A conversion circuit 37, and is stored as music from the pair of speakers 23 into the curtain plate portion 10 b of the range hood 9. The music is reproduced and reproduced in the kitchen outside the curtain plate portion 10b from the slit 28 provided in the front curtain plate 20 of the curtain plate portion 10b, and can be viewed by the user of the kitchen.

  When the exhaust fan 11 of the range hood 9 is not operating during the reproduction of this music, no noise is detected by the microphone 24 and the noise of the exhaust fan 11 is added to the music reproduced by the acoustic device 27. Is reproduced as clear music from the speaker 23 of the range hood 9 into the kinchtin without being overlaid.

  At this time, since the pair of speakers 23 are attached to the front curtain plate 20 of the range hood 9, the speaker 23 having a predetermined sound quality can be attached to the range hood 9 in a reliable and stable state, and the range hood 9. The space in the curtain plate portion 10b having a relatively large volume can be used as an acoustic space, and the sound from the speaker 23 can be reflected on the wall panel 18 or the like on the rear surface of the curtain plate portion 10b. You will be able to play high quality music.

  On the other hand, when music is played with the exhaust fan 11 of the range hood 9 activated, the noise of the motor 11a is sequentially detected by the microphone 24 and input to the control circuit 34 as described above. Thus, a sound having a phase opposite to the noise of the motor 11 a is emitted from the speaker 23 simultaneously with the reproduction of the music, and the noise is canceled, and the sound reproduced in the curtain plate portion 10 a of the range hood 9 is the music of the acoustic device 27. Only the music will be played clearly in the kitchen.

  When only the exhaust fan 11 is operated, by turning on the exhaust switch provided on the remote controller 29, the motor 11a rotates and the exhaust fan 11 is activated, and smoke generated during cooking is guided by the guide portion. 10a flows as indicated by arrows a and b in FIG. 4 and is exhausted from the exhaust duct 16 to the outside as indicated by arrows c. Further, the noise is detected by the microphone 24 when the motor 11a of the exhaust fan 11 is rotated, and a sound having a phase opposite to that of the detected sound is emitted from the speaker 23, and the noise of the motor 11a when the exhaust fan 11 is operated. Even if the exhaust fan 11 is in an operating state, sufficient quietness is ensured in the kitchen.

  That is, in the case of this range hood 9, by attaching a pair of speakers 23 and a microphone 24 to the hood case 10, an active noise control function is added to the range hood 9, and this function reduces the noise of the motor 11a of the exhaust fan 11. Thus, clear and high-quality music can be reproduced regardless of whether or not the exhaust fan 11 is activated in the kitchen.

  As described above, in the range hood 9 of the above embodiment, the pair of speakers 23 are attached to the curtain plate portion 10b of the hood case 10 and the controller 25 is disposed in the curtain plate portion 10b. Since the input terminal 26 to which the audio equipment 27 can be connected is provided, music played back by the audio equipment 27 can be played into the kitchen from the speaker 23, and a music playback function is added to the range hood 9 having an exhaust function. Yes, kitchen users can easily listen to music while cooking.

  Further, since the pair of speakers 23 are attached to the front curtain plate 20 of the curtain plate portion 10b, the speaker 23 can be attached in a stable state, and a relatively wide space in the curtain plate portion 10b is used as an acoustic space. Or the sound of the speaker 23 can be reflected by the wall panel 18 and high-quality music can be reproduced in the kitchen.

  Further, since the control circuit 34 of the controller 25 is connected to the acoustic device 27 via the input terminal 26 disposed on the wall panel 18 near the range hood 9, only the acoustic device 27 such as a radio cassette is connected to the input terminal 26. The desired music can be reproduced in the kitchen and the usability of the range hood 9 can be improved. From these facts, it is possible to provide the range hood 9 which is excellent in added value and provides a comfortable kitchen space. It becomes.

  Moreover, since the sound of the opposite phase is emitted from the speaker 23 based on the sound detected by the microphone 24 disposed in the hood case 10 by the control circuit 34 of the controller 25, the motor 11a of the exhaust fan 11 is caused by the sound of the opposite phase. Can cancel out noise. As a result, noise during use of the exhaust fan 11 alone can be reduced to ensure sufficient silence in the kitchen, and music played from the speaker 23 when the music is played while the exhaust fan 11 is operated. It is possible to play clear music in the kitchen.

  Furthermore, since the receiving circuit 30 capable of receiving the infrared signal is provided in the controller 25, music can be played back by remote control with the remote controller 29, and the operation of the exhaust fan 11 can be operated. Can be improved. In particular, since the remote controller 29 is also used for operating the exhaust fan 11, the number of remote controllers used in the kitchen can be reduced, and various remote operations related to the range hood 9 can be performed by the single remote controller 29. It can be performed and the operability can be further improved. Moreover, since the range hood 9 can be used as a part of the music playback device, the playback device is not exposed in the kitchen, and the design of the kitchen can be prevented from being lowered.

  In the above embodiment, the pair of speakers 23 and the microphone 24 are arranged in the range hood 9. However, for example, one speaker is used as a microphone, and the motor noise is detected by the one speaker. You can also. If comprised in this way, one of the pair of speakers 23 for music reproduction can be used also as a microphone, the structure of an acoustic reproduction apparatus can be simplified and the cheap range hood 9 can be obtained.

  Further, in the above embodiment, the pair of speakers 23 are arranged on the inner surface of the front curtain plate 20 of the range hood 9 so as to face the inner direction of the curtain plate portion 10b. The speaker 23 is disposed so as to be directed inwardly on the left and right side surfaces of the horizontal curtain plate 21 and the like of the curtain plate portion 10b, or directed substantially downward to the left and right of the top plate contacting the ceiling panel 22 of the curtain plate portion 10b. Alternatively, the guide plate 10a may be arranged at an appropriate position such as the upper plate 17 or the side plate in addition to the curtain plate portion 10b. In this case, the position of the microphone 24 is not limited to the front curtain plate 20 of the curtain plate portion 10b, and is arranged at an appropriate position where the noise of the motor 11a can be accurately detected according to the arrangement position of the speaker 23 and the exhaust fan 11, etc. can do.

  Furthermore, the number of speakers 23, the arrangement position of the controller 25, the overall shape of the range hood 9, the configuration of the remote controller 29, etc. in the above embodiment are merely examples. For example, the remote controller 29 may be configured in a wired manner, or the controller 25 may be An appropriate configuration can be employed within a range not departing from the gist of each invention according to the present invention, such as being arranged on the wall panel 18 in the vicinity of the range hood 9.

  The present invention is not limited to the range hood of the system kitchen, and can also be applied to a range hood installed alone, for example, above a stove of a general kitchen.

The front view which shows one Embodiment of the system kitchen using the range hood concerning this invention Perspective view of the same range hood The longitudinal section Its cross-sectional view Block diagram of the control system Operation explanation diagram

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... System kitchen, 2 ... Base cabinet, 4 ... Stove, 8 ... Wall cabinet, 9 ... Range hood, 10 ... Food case, 10a ... Guide part, 10b .. curtain plate part, 11 ... exhaust fan, 11a ... motor, 13 ... guide plate, 18 ... wall panel, 20 ... front plate, 21 ... horizontal front plate, 23 ... Speaker, 24 ... Microphone, 25 ... Controller, 26 ... Input terminal, 27 ... Audio equipment, 29 ... Remote control, 30 ... Receiving circuit, 34 ... Control circuit 38 ... Power amplifier.

Claims (5)

A range hood with an exhaust fan built in the hood case and installed above the stove of the kitchen,
A range hood characterized in that a speaker is attached to the hood case, a controller is disposed in or near the hood case, and predetermined music is reproduced in the kitchen via the speaker under the control of the controller.   The controller includes an amplifier connected to a speaker and a control circuit that controls the amplifier, and the control circuit is connected to an audio device via an input terminal disposed on a wall surface near the range hood. The range hood according to claim 1, wherein   The range hood according to claim 1 or 2, wherein the controller emits a sound of an opposite phase from the speaker based on a sound detected by a microphone arranged in a hood case.   The range hood according to claim 3, wherein the microphone is also used as the speaker.   5. The controller according to claim 1, wherein the controller has a receiving circuit that receives infrared rays emitted from a remote controller, and reproduces predetermined music through a speaker based on a signal received by the receiving circuit. Crab range hood.

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