JPH03260554A - Hot air blower - Google Patents

Abstract

PURPOSE:To enable realization of a silent hot air blower making a user sense no noise by a method wherein volume resonance is made to occur in a space of a hermetically-sealed case body and a blower tube by vibrating a speaker by an inaudible frequency and thereby air is discharged from the blower tube. CONSTITUTION:An inaudible low frequency is generated by an inaudible low frequency generating device 6 and a vibrating plate of a speaker 1 is vibrated by the low frequency of the inaudible frequency through the intermediary of an amplifier 2. Then volume resonance is made to occur by a space of a case body 5 and a blower tube 3 by the vibration and thereby air in the blower tube 3 is moved to a large extent. With this movement, the air is discharged out of the hermetically-sealed case body 5 to be supplied. Since the vibrating plate 8 is vibrated at the inaudible frequency in this operation, a user hears no vibration sound and noise turns low. A heat source 4 such as an electric heater is provided for heat exchange with the air in this blower tube 3 and thereby hot air can be supplied. By providing a honeycomb straightening plate 9 at an outlet of the blower tube, moreover, an air stream is straightened and supplied to a more distant place.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hot air blowing device that blows hot air using vibrations of a sound generator.

2. Description of the Related Art Conventionally, warm air blowers generally have a tank bottom as shown in FIG. Heat exchange is performed with a heat source 31 installed on the downstream side, and the bottom of the tank blows warm air.

The invention tries to solve I! 8 In such a conventional hot air blower, the blower generates a large amount of turbulent noise, which causes discomfort to the user.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a hot air blower that does not make the user feel any noise.

Means for Solving the Problems In order to achieve the above object, the present invention includes a sealed housing, a sound generating device attached to the side surface thereof, an inaudible low frequency generating device and an amplifier for driving the sound generating device. , comprising a blower pipe passing through the side surface of the housing, and a heat source disposed within the conduit of the blower pipe.

It consists of a music reproducing device that reproduces music containing inaudible low frequencies that drive a sound generating device, and an amplifier.

Effect The present invention has the above-described configuration, vibrates the diaphragm of the sound generator at a low inaudible frequency to generate volume resonance in the space between the housing and the blower pipe, and greatly moves the air in the space inside the blower pipe. This movement causes air to be discharged and blown out of the housing.

At this time, since the sound generator vibrates at a non-audible frequency, the vibration sound is not audible and the noise is low. Then, hot air can be blown by exchanging heat between the air and a heat source such as an electric heater disposed within the blast pipe.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 shows a first embodiment of the present invention, and as shown in the figure, a speaker 1, which is a sound generating device, is mounted on the side surface of a sealed housing 5. As shown in FIG. This speaker 1 is driven by an amplifier 2 that amplifies the inaudible low frequency generated by the inaudible low frequency generator 6 . Further, the housing 5 is equipped with an air pipe 3 that penetrates the side surface of the housing 5, and a heat source 4 such as an electric heater is installed in the air pipe 3, and a honeycomb rectifying plate 9 is installed at the outlet of the air pipe. has been done.

Note that 7 is a music reproducing device connected to the amplifier 2 and reproducing music including inaudible low frequencies.

To explain the operation in the above configuration, when the non-audible low frequency generator 6 generates a non-audible low frequency and the diaphragm of the speaker 1 is vibrated at a low non-audible frequency via the amplifier 2, the vibration causes the casing to vibrate. 5 and the space between the blower tube 3 causes volume resonance, and the air in the space inside the blower tube 3 is moved significantly. Due to this movement, air is discharged and blown to the outside of the sealed housing 1. During this operation, the diaphragm 8 vibrates at an inaudible frequency, so the user cannot hear the vibration sound and the noise is low. Then, by installing a heat source 4 such as an electric heater in the air pipe 3 and exchanging heat with the air, hot air can be blown.

Furthermore, by providing a honeycomb rectifier plate 9 at the outlet of the blower tube, the airflow is rectified and can be blown farther.

In addition, music including low frequency components of inaudible frequencies is played back by the music reproduction device 27 and sent to the amplification 2, and the speaker 1 is driven together with the inaudible low frequency generated by the inaudible low frequency generator 6 or alone. Then, it is possible to create a blower device that blows warm air and allows you to hear music.

Next, another embodiment will be described with reference to FIG.

A speaker 1 is installed inside the lower storage box 11 of the bathroom vanity 10.
A flexible extension pipe 15 for extending the air pipe 13 is installed in the upper part of the storage box 11, and an electrical A heat source 16 such as a heater is provided with a hot air radiator 17.

18 is an inaudible low frequency generator that generates inaudible low frequencies; 19 is a music playback device that generates music that includes inaudible low frequencies; 20 is an amplifier; 21 is a door of the storage box 11 that transmits sound; 22 is a wash basin.

To explain the operation in the above configuration, as in the first embodiment, by vibrating the diaphragm 23 of the speaker 12 at a low inaudible frequency, volume resonance is generated in the space between the sealed housing 14 and the air pipe 13. , the air in the space inside the blast pipe 13 is moved significantly. Due to this movement, air is discharged and blown to the outside of the sealed casing 14.

During this operation, the diaphragm 23 vibrates at an inaudible frequency, so the user cannot hear the vibration sound and the noise is low. The hot air head 17, which has a built-in heat source 16 such as an electric heater, can exchange heat with the air and blow hot air, making it possible to use it as a hair dryer. Moreover, when music including low frequency components of inaudible frequencies is amplified and the speaker 12 is driven, hot air is blown and music can be heard from the door 21 of the lower storage box 11 and the hot air head 17. be able to.

As described above, according to the hot air blower according to the embodiment of the present invention, the speaker 1 is vibrated with the inaudible low frequency generated by the inaudible frequency generator 6, and a volume is created in the space between the sealed casing 5 and the blower pipe 3. Since resonance is generated and air is discharged from the blower pipe 3, hot air can be blown without causing noise to the user. Also,
By reproducing music containing inaudible low frequency components using the music reproducing device 7 and vibrating the speaker 1, the user can enjoy music in a noise-free environment.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the speaker is vibrated at a non-audible frequency to create volume resonance in the space between the sealed casing and the air pipe, and air is discharged from the air pipe. Therefore, it is possible to provide a quiet hot air blower that does not make the user feel any noise.

In addition, it is possible to play music that includes low frequency components, vibrate the speaker, and blow air from the air pipe, making it possible to provide a hot air blower that can be used while enjoying music in a noise-free environment. be.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a hot air blower according to an embodiment of the present invention, and Fig. 2 is a side sectional view of a hot air blower according to an embodiment of the present invention.
FIG. 3 is a side sectional view of a conventional hot air blower. 1...Speaker (sound generator), 2...
... Amplifier, 3 ... Air pipe, 4 ... Heat source, 5 ... Sealed housing, 6 ... Inaudible low frequency generator, 7 ... ...Music playback device.

Claims (2)

[Claims] (1) A sealed housing, a sound generator attached to the side surface thereof, an inaudible low frequency generator for driving the sound generator, an amplifier, a blower pipe passing through the side surface of the housing, and the blower. A hot air blower consisting of a heat source installed inside a pipe. (2) Claim consisting of a music reproduction device and an amplifier that generate music including inaudible low frequencies to drive a sound generation device (
1) The hot air blower described above.