JPH07323A - Vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Structure] 2 is a bidirectional thyristor, which is triggered by a signal from the control means 3 to change the rotational speed of the electric blower 1. Reference numeral 4 is a selection means for selecting a radio wave or a sound wave of a specific frequency. The selection means 4 selects a radio wave or a sound wave emitted by the detection means 5 when the door chime or the telephone is operated, and a target radio wave or sound wave exists. In that case, a signal is output to the control means 3, and the control means 3 stops the rotation of the electric blower 1 in response to this signal. [Effect] By stopping the rotation of the electric blower when a home alarm sound such as a telephone or a door chime sounds, the inconvenience of not hearing the home alarm sound of the telephone or the door chime disappears. Further, when the domestic alarm sounds, the troublesomeness of operating the operation unit and stopping the rotation of the electric blower each time is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner used in general households.

[0002]

2. Description of the Related Art Vacuum cleaners used in general households include
There is one provided with means for controlling the rotation speed of the electric blower in order to change the suction force. In these vacuum cleaners, the rotation speed of the electric blower is changed arbitrarily by a switch of the main body operation unit or the hand operation unit, or automatically by a signal from a pressure sensor or a device that optically detects the amount of dust. It is being done. However, there is no example in which a radio wave or a sound wave of a specific frequency generated from a device or equipment outside the main body of the vacuum cleaner is detected and applied to the control of the electric blower. Further, an idea has been proposed in which the main body of the vacuum cleaner and the hand-held operation unit or the suction tool for the floor are connected by remote control means using radio waves, sound waves, light, etc.
The purpose is to integrate the information held by the handheld control unit and the floor suction device by remote control means, and does not attempt to incorporate information from devices and equipment outside the cleaner body into the control of the electric blower. .

[0003]

In recent years, in electric vacuum cleaners, the rotational speed of the electric blower has been increasing in order to increase the suction force, which causes noise from the electric blower and the noise from the suction port and the exhaust port. Airflow noise is increasing. for that reason,
When using the electric blower in the home with the rotation speed increased and the suction power increased, there was a problem that due to the noise, the sound of the door chime at the time of the visitor and the ring tone of the telephone were missed. . Conventionally, methods such as increasing the amount of sound absorbing material in the vacuum cleaner body and optimizing the flow path shape of the intake and exhaust flow have been performed in order to reduce noise, but in both cases, the size of the vacuum cleaner body is significantly increased. However, there is a drawback that it causes an increase in weight and the handleability is deteriorated.

The inventor has heard that the sound of the door chime at the time of the visitor,
We devised a method to improve the inconvenience of not hearing home alerts such as telephone ringtones while using a vacuum cleaner without significantly increasing the size and weight of the vacuum cleaner.

An object of the present invention is to provide a domestic alarm sound such as a door chime at the time of a visitor or a ringing tone of a telephone to a vacuum cleaner without causing the vacuum cleaner body to be significantly increased in size and weight. It is to provide an electric vacuum cleaner that will not be overlooked during use.

[0006]

The above object can be achieved by providing a control means for stopping the rotation of the electric blower by detecting a radio wave or a sound wave generated from a device or equipment outside the cleaner body.

[0007]

By the above means, when a cordless telephone or a door chime that uses radio waves is activated and emits radio waves, or when a domestic alarm sound such as a ringing tone of the telephone sounds,
By detecting the radio wave or sound wave and stopping the rotation of the electric blower by the control means, it is possible to avoid missing the domestic alarm sound such as a telephone or a door chime.

[0008]

1 is a block diagram showing the basic construction of the present invention. Reference numeral 1 is an electric blower, and 2 is a bidirectional thyristor, which is triggered by a signal from the control means 3 to change the rotation speed of the electric blower. Reference numeral 4 is a selection means for selecting a radio wave or a sound wave of a specific frequency. The selection means 4 selects a radio wave or a sound wave of a specific frequency from the radio waves or the sound waves detected by the detection means 5, and when a target radio wave or a sound wave is present, a signal is sent to the control means. Is output.
6 is an AC power supply. FIG. 2 shows a first embodiment of the present invention.
In this example, the microcomputer 7 is used as the control means, the frequency filter 8 is used as the selection means, and the amplifier 9 and the antenna 10 are used as the detection means. The operation method in this case will be described.

The amplifier 9 and the antenna 10 corresponding to the detecting means 5 constantly monitor the radio wave signal. The radio wave signal detected by the detection means is output to the microcomputer 7 corresponding to the control means 3 through the frequency filter 8 corresponding to the selection means 4, but the signals other than the signal of the frequency set by the frequency filter are cut. It Therefore, the signal is output to the control means only when the target specific frequency signal is detected. The control means stops the rotation of the electric blower when there is a signal that has passed through the frequency filter, that is, when a signal is output from the detection means. In this case, the set frequency can be changed by changing the characteristics of the frequency filter. Further, if a combination of an amplifier and a microphone is used as the detecting means, it can correspond to the sound wave signal. In this embodiment, the control means, the selection means, and the detection means are described in association with the microcomputer, the frequency filter, the amplifier, and the antenna, respectively. However, for example, some of the detection means and the selection means may be incorporated in the microcomputer. Is also possible.

As the selecting means, for example, a tuning circuit using a coil and a capacitor can be used. In this case, the set frequency can be changed by changing the inductance of the coil and the capacitance of the capacitor.

FIG. 3 shows a second embodiment of the present invention. As a selection means, the comparison section 12 compares the frequency stored in the storage section 11 with the frequency of the signal detected by the detection section. This is an example of using a method of outputting a signal to the control means when they match. By providing the storage unit 13, the contents stored in the storage unit 11 can be updated.

FIG. 4 shows a third embodiment of the present invention in which the detecting means and the selecting means are provided separately from the cleaner body. 1
Reference numeral 4 denotes a transmitter, which is installed near a home alarm sound source and used, and is composed of a detection means composed of a microphone 18 and an amplifier 9, a selection means 4, and a transmission section 16.
The cleaner body 17 is provided with the control means 3 and the receiving section 19. The sound wave signal input to the detecting means is selected by the selecting means, and if there is a sound wave signal of a target frequency, the signal is transmitted from the transmitting section to the receiving section of the cleaner body. In the main body of the vacuum cleaner, the receiving unit receives the signal and outputs the signal to the control unit, so that the control unit stops the rotation of the electric blower.

[0013]

According to the present invention, when a cordless telephone or a door chime that uses radio waves is activated to emit radio waves, or when a home alarm sound such as a ringing tone of the telephone sounds, the radio waves or By detecting the sound wave and stopping the rotation of the electric blower by the control means, there is no inconvenience of missing the home alarm sound such as a telephone or a door chime. Further, when the domestic alarm sounds, the troublesomeness of operating the operation unit and stopping the rotation of the electric blower each time is eliminated.

[Brief description of drawings]

FIG. 1 is a basic block diagram of the present invention.

FIG. 2 is a block diagram of the first embodiment of the present invention.

FIG. 3 is a block diagram of a second embodiment of the present invention.

FIG. 4 is a block diagram of a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electric blower, 3 ... Control means, 4 ... Sorting means, 5 ... Detection means, 17 ... Vacuum cleaner main body.

Claims (3)

[Claims] 1. An electric vacuum cleaner including a cleaner body and an electric blower housed in the cleaner body, wherein the electric power is generated by detecting a radio wave or a sound wave generated from a device or a facility outside the cleaner body. An electric vacuum cleaner comprising a control means for stopping rotation of a blower. 2. A vacuum cleaner including a cleaner body and an electric blower housed in the cleaner body, and detection means for detecting radio waves or sound waves generated from devices and equipment outside the cleaner body. From the signals detected by the detection means,
An electric vacuum cleaner comprising: a selection unit that selects a radio wave or a sound wave of a preset specific frequency; and a control unit that stops the rotation of the electric blower according to a signal transmitted from the selection unit. 3. An electric vacuum cleaner according to claim 1, wherein the detection means and the selection means are provided separately from the main body of the electric vacuum cleaner.