JPH0458929A - Vacuum cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vacuum cleaner that has improved operability and reduced noise.

(Prior Art) The structure of a conventional vacuum cleaner will be explained based on FIG. 5. In the figure, 11 is a suction nozzle that sucks dust from the cleaning surface, 12 is the main body, 13 is a fan motor that generates suction pressure for the suction nozzle 11, and 14 is a fan motor 13.
15 is a hand-held operation unit operated by the user; 15 is a hand-held switch provided in the hand-held operation unit;]7
is a rotating brush provided in the suction nozzle 1], 18
is a rotating brush motor that rotates the rotating brush 17;
The signal from the hand switch 16 is connected to the control means 14 and the rotary brush motor 18. In addition, the hand switch 16
By operating the button, you can switch between standard mode, which produces normal operating noise, and quiet mode, which suppresses operating noise. With the above configuration, the user judges the surrounding sounds, adjusts the suction amount with the hand switch 16, selects the standard mode and the quiet mode, and performs cleaning with an operating sound that matches the surrounding conditions.

(Problem to be solved by the invention) However, in the vacuum cleaner with the above configuration, the user judges the surrounding sounds and selects the suction amount of the fan motor, that is, the operating sound, by switching the switch, and performs cleaning. There was a drawback that it had to be done.

The present invention solves the drawbacks of the conventional vacuum cleaners, and can automatically determine the ambient sound and change the suction amount of the fan motor. The first object of the present invention is to provide a vacuum cleaner having a low-noise configuration and capable of cleaning with reduced operating noise.

In addition, by providing a start switch, it is possible to determine the surrounding noise level when the start switch is pressed, and even if the place of use changes, the vacuum cleaner can be cleaned with an operation sound that suits the place. The second purpose is to provide the following.

Furthermore, since the surrounding noise level can be determined intermittently using a timer means, it is a third object of the present invention to provide a vacuum cleaner that can automatically perform cleaning with the operating sound suitable for the place of use even when moving from room to room. This is the purpose of

(Means for Solving the Problems) As claimed in claim (1) of the present invention, a fan motor for collecting dust, a motor control means for controlling the rotation speed of the fan motor, and a surrounding area such as a room are provided. A sound detection means for detecting sound, and a method for determining the surrounding noise level based on a signal from the sound detection means and outputting a signal to the motor control means to control the rotation speed of the fan motor to be lowered when the surroundings are quiet. The present invention provides a vacuum cleaner having a structure including a sound determining means.

Further, as claimed in claim 2 of the present invention, a fan motor for collecting dust, a motor control means for controlling the rotation speed of the fan motor, and a sound detection means for detecting ambient sounds in a room or the like. , a sound determination means for outputting a signal to the motor control means to control the rotation speed of the fan motor to be lowered when the surroundings are quiet based on the signal from the sound detection means; and a sound determination means for operating the sound determination means each time the switch is pressed. The vacuum cleaner is equipped with an activation switch to enable the

Further, as claimed in claim 3 of the present invention, a fan motor for collecting dust, a motor control means for controlling the rotation speed of the fan motor, and a sound detection means for detecting ambient sounds in a room or the like. , a sound determining means for determining the ambient noise level based on the signal from the sound detecting means and outputting a signal to the motor controlling means to control the fan motor to reduce its rotational speed when the surroundings are quiet; and the sound determining means. The vacuum cleaner is equipped with a timer means so that the ambient noise level can be determined intermittently.

(Function) According to the structure of claim (1) above, the sound detection means detects the surrounding sound, and the sound judgment means judges the surrounding sound based on this signal, so that the signal automatically matches the surrounding sound. The rotation speed of the fan motor can be controlled. In other words, when performing cleaning work, it can determine whether the surrounding sounds are quiet or noisy, and clean with operating sounds that match the surrounding sounds.

Further, according to the configuration of claim (2), by providing a start switch, it is possible to determine the surrounding noise level when the start switch is pressed, and even if the place of use changes, the operating sound that is consistent with that place can be heard. You can clean it with

Further, according to the configuration of claim (3), the timer means can operate the sound determination means to intermittently determine surrounding sounds;
Even if you move from room to room, you can automatically clean with the operating sound that matches the location.

(Example) An example of claim (1) of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of this embodiment, and FIG. 2 is a diagram explaining the operation of this embodiment.

Fan motor 2 for collecting dust inside the vacuum cleaner body 1
, a motor control means 3 that controls the rotation speed of the fan motor 2, a sound detection means 4 consisting of a microphone or the like that detects ambient sounds in a room, etc., and the ambient noise level is determined based on the signal from the sound detection means 4. The fan motor 2 has a sound determining means 5 which outputs a signal to the motor control means 3 to control the rotation speed of the fan motor 2 to be lowered when the surroundings are quiet.

Note that the sound detection means 4 only needs to be able to detect the surrounding noise level, and may be provided, for example, in a hand-held operation unit, and is not limited to the configuration of the embodiment.

It is also conceivable to control the rotary brush motor using the signal from the sound determining means 5.

In the configuration described in Section 2, when the power is turned on by plugging it into an outlet, the sound detection means 4 consisting of a microphone or the like detects surrounding sounds. The sound pressure level detected by the sound detection means 4 is determined by the sound determination means 5 as to whether it is quiet or noisy, and a signal is sent to the motor control means 3. Here, the relationship between the noise level and the rotation speed of the fan motor will be explained using FIG. When the noise level is low, the rotation speed of the fan motor is controlled to a low level and the fan motor operates with low noise. Moreover, when the noise level is high, the rotation speed of the fan motor is controlled to be large. In other words, if the sound determining means 5 determines that the fan motor 2 is quiet, the motor control means 3 operates with an operating sound that suppresses the rotational speed of the fan motor 2. In addition, if the fan motor 2 is noisy, the fan motor 2 is operated at the normal rotation speed. In this embodiment, the ambient noise level is detected using a microphone, and the rotational speed of the fan motor 2 is controlled to match the operating sound level to the ambient noise level.

As described above, according to this embodiment, it is possible to automatically determine the surrounding noise level and perform cleaning with an operating sound that matches the surrounding noise level.

Further, FIG. 3 is a diagram showing an embodiment of claim (2) of the present invention, and the second embodiment will be explained based on this diagram.

A fan motor 2 for collecting dust, a motor control means 3 for controlling the rotation speed of the fan motor 2, a sound detection means 4 for detecting ambient sounds in a room, etc. a sound determining means 5 for outputting a signal to the motor control means 3 to control the rotation speed of the fan motor 2 to lower when the fan motor 2 is quiet; and a starting switch 6 for operating the sound determining means 5 each time the switch is pressed. have.

This configuration is the same as the configuration of the first embodiment shown above by adding a start switch 6 for starting the fan motor 2 and for operating the sound determination means 5, and the other configuration is the same as that of the first embodiment shown above. Since the configuration is the same as that of the embodiment, the explanation will be omitted.

In the above configuration, when the start switch 6 is pressed, the sound determining means 5 is operated to determine the surrounding noise level. The signal from the sound determination means 5 is sent to the motor control means 3 to control the rotation speed of the fan motor 2. In other words, the sound determination means 5 can be operated every time the start switch 6 is pressed, and even if the cleaning location changes, such as when moving from room to room, the noise level can be determined by pressing the switch. Cleaning can be done with the sound of operation.

Further, FIG. 4 is a diagram showing an embodiment of claim (3) of the present invention, and the third embodiment will be explained based on this diagram.

A fan motor 2 for collecting dust, a motor control means 3 for controlling the rotation speed of the fan motor 2, a sound detection means 4 for detecting ambient sounds in the room, etc., and a signal from the sound detection means 4. Sound determining means 5 determines the ambient noise level and outputs a signal to the motor control means 3 to control the rotation speed of the fan motor to be lowered when the surrounding is quiet; It has a timer means 7 so that the level can be determined. This configuration is based on the first
A timer means 7 for intermittently operating the sound determination means 5 is added to the structure of the first embodiment, and the other structure is the same as that of the first embodiment shown above, so a description thereof will be omitted. do.

In the above configuration, the timer means 7 intermittently sends a signal to the sound determining means 5, causing the sound determining means 5 to operate intermittently. A sound determining means 5 intermittently determines the surrounding noise level. In other words, since the sound determination means 5 can be operated intermittently, even if the cleaning location is moved, the noise level of the location being used can be automatically determined, and cleaning can be performed with the operating sound that matches the noise level. .

(Effect of the invention) According to the invention, the surrounding noise level is automatically determined,
By controlling the rotation speed of the fan motor, cleaning can be performed with an operating sound that matches the surrounding noise.

In other words, when using the vacuum cleaner early in the morning or at night, the fan motor can automatically reduce the number of rotations and make a noise while cleaning.
This makes it possible to provide a vacuum cleaner with improved operability and reduced noise.

In addition, by providing a start switch, it is possible to determine the surrounding noise level when the start switch is pressed, so that even if the place of use changes, the vacuum cleaner can be cleaned with the operating sound that matches the location. It can be done.

In addition, since the ambient noise level can be determined intermittently using a timer, even if the cleaning location changes, such as when moving from room to room, the vacuum cleaner can automatically clean with the operating sound that matches the location where it is being used. This is promising, and its practical effects are extremely large.

[Brief explanation of drawings]

Fig. 1 is a circuit block diagram showing the first embodiment of the vacuum cleaner of the present invention, Fig. 2 is a diagram showing the relationship between the noise level and the rotation speed of the fan motor of the invention, and Fig. 3 is the vacuum cleaner of the invention. second machine
FIG. 4 is a circuit block diagram showing a third embodiment of the vacuum cleaner of the present invention, and FIG. 5 is a perspective view showing a conventional vacuum cleaner. DESCRIPTION OF SYMBOLS 1 Main body, 2 Motor control means, 5... Sound determination means, 7... Timer means. Fan motor, 3...4...Sound detection means, 6.Start switch, Patent applicant: Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] (1) A fan motor for collecting dust, a motor control means for controlling the rotation speed of the fan motor, a sound detection means for detecting ambient sounds in a room, etc., and a signal from the sound detection means. 1. A vacuum cleaner comprising: a sound determining means for determining an ambient noise level and outputting a signal to the motor controlling means to control the fan motor to reduce the rotation speed when the surrounding is quiet. (2) A start switch is provided to operate the sound determination means, and when the start switch is pressed, the surrounding sound is determined and the fan motor is operated with an operating sound that matches the surrounding noise level. A vacuum cleaner according to claim (1). (3) A claim characterized in that a timer means is provided so as to be able to intermittently determine the ambient noise level in a room or the like (
1) The vacuum cleaner described.