JPH08290073A - Garbage disposer - Google Patents

Abstract

PURPOSE: To greatly reduce noise to be generated by a motor and to remarkably lower actuation sound of a garbage disposer by providing a garbage disposer which is fitted to a sink and disintegrates or dehydrates garbage, with an active type deadening device for deadening the actuation sound of the garbage disposer. CONSTITUTION: Garbage and water are thrown from an adapter 14 into a case upper part 16 in a state in which a motor 24 is actuated to rotate an impeller 34. Garbage is sprung out by the impeller 34 and also ground between the impeller 34 and the internal surface of the case upper part 16 and finely disintegrated. Thereafter, garbage is discharged together with water from an opening 38 to a discharge port 42. By the way, actuation sound of the motor 24 is collected by a microphone 50 and also sound (interference sound) of a phase reverse thereto is outputted toward the motor 24 from a speaker 48. Thereby, noise generated by the motor 24 is deadened. In other works, both the sound collection microphone 50 fitted to the motor 24 and a microphone 52 for evaluation attached on the external surface of a case lower part 18 are connected to a deadening controller 44 together with a speaker 48.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is attached to a sink,
The present invention relates to a garbage disposer that disintegrates or dehydrates garbage.

[0002]

2. Description of the Related Art A food waste processing machine in which food waste is finely crushed and is allowed to flow into a drainage pipe is rotated by an impeller by a motor to grind the food waste between the inner surface of the case and the impeller, or The centrifugal force of the impeller crushes the garbage by hitting it with the inner surface of the case.

[0003] A raw garbage processing machine for dehydrating raw garbage stores the raw garbage in a dehydrating basket and rotates the dehydrating basket at a high speed to centrifugally dehydrate the raw garbage.

[0004]

However, such garbage processing machine generates a considerable amount of noise when it is operated. In particular, in a garbage disposal of the type that disintegrates garbage, a significantly loud motor operating noise is generated when disintegrating hard bodies such as bird bones and fish heads.

[0005]

According to a first aspect of the present invention, there is provided a garbage disposer which is attached to a sink and which disintegrates or dewaters the garbage, and which silences the operating noise of the garbage disposer. It is characterized in that a shape silencer is provided.

According to a second aspect of the present invention, there is provided the garbage disposal device according to the first aspect, wherein the active silencer is activated when the operation motor of the garbage treatment device is energized. It is a thing.

According to a third aspect of the present invention, the garbage disposal is characterized in that the active silencer is activated only when the ambient sound at night or in the surroundings is lower than a predetermined level. is there.

According to a fourth aspect of the present invention, there is provided the garbage disposal device according to the first aspect, wherein the active silencer is activated only when the operating noise of the garbage disposal device is higher than a predetermined level. Is.

[0009]

The noise level transmitted to the surroundings can be remarkably lowered by silencing the sound generated by the garbage processing machine with the active silencer.

According to the garbage disposal of claims 2 to 4, the frequency of operation of the active silencer is reduced and the durability thereof is improved.

[0011]

Embodiments will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a crushing type garbage treatment machine according to an embodiment of the present invention, and FIG. 2 is a vertical sectional view of a centrifugal dehydration type garbage treatment machine according to an embodiment.

In FIG. 1, the drain port 12 of the sink 10 is shown.
The flange 14a of the adapter 14 is brought into contact with the above from above,
The case upper 16 is screwed into a male screw provided on the outer peripheral surface of the lower end of the adapter 14. The edge of the drainage port 12 of the sink 10 is sandwiched between the flange 16a provided on the upper end of the case upper 16 and the flange 14a.

A flange 16 is provided below the case upper 16.
b is provided, is overlapped with the flange 18a at the upper end of the case lower 18, and both flanges 16b and 18a are connected by a clamp 20.

A motor 24 is fixedly installed in the case lower 18 through a bracket 22.
The rotating shaft 24a of the No. 4 is mounted on the case lower 18 via the bearing 26.
Of the tray 40.

A rotating shaft 32 is provided on the case upper 16 via a bearing 30, and an impeller 34 is attached to the upper end of the rotating shaft 32. The rotary shaft 32 has a joint 3
It is connected to the rotating shaft 24a via 6. The bottom surface of the case upper 16 is provided with a plurality of openings 38 for discharging finely crushed raw garbage together with water.

The upper surface of the case lower 18 serves as a tray 40 for receiving the garbage and water that have passed through the opening 38, and a discharge port 42 for discharging the garbage and water on the tray 40 to the outside. Extends laterally from the side surface of the case lower 18.

A muffling controller 44 is provided on the bottom surface of the case lower 18.
Are attached by a cover 46. A speaker 48 for outputting a sound for silencing toward the motor 24 is provided on the inner surface of the case lower 18, a sound collecting microphone 50 attached to the motor 24, and an evaluation provided on the outer surface of the case lower 18. The microphone 52 is connected to the mute controller 44 together with the speaker 48.

In the garbage treating machine thus constructed, the motor 24 is actuated and the impeller 34 is rotated to feed the garbage and water into the case upper 16 from the adapter 14. The thrown-in garbage is repelled by the impeller 34, and is ground between the impeller 34 and the inner surface of the case upper 16 to be finely crushed. The crushed raw garbage is discharged from the opening 38 to the discharge port 42 together with water.

The operation sound of the motor 24 is collected by the microphone 50, and a sound (interference sound) having a phase opposite to that of the sound is output from the speaker 48 toward the motor 24, whereby the noise generated by the motor 24 is silenced.

FIG. 2 shows the centrifugal dewatering type garbage processing machine as described above. The flange 54a of the adapter 54 is brought into contact with the drain port 12 of the sink 10 from above, and the mounting ring 56 is attached to the adapter 54. It is screwed into the outer peripheral surface of 54. The stepped upper surface 56a of the mounting ring 56 and the flange 5
By sandwiching the edge of the drainage port 12 with 4a,
A dehydrator is attached to the sink 10. Mounting ring 56
A flange 56b provided on the lower end of the case faces the flange 58a of the case 58 and is connected by a clamp 60.

A tray 62 is transversely arranged in the middle portion of the case 58 in the height direction, and the inside of the case 58 is divided into upper and lower chambers. A motor 66 supported by a bracket 64 is arranged in the lower chamber, and a rotation shaft 68 of the motor 66 projects above a tray 62 via a bearing 70. Rotating shaft 7 of dehydration basket 72 arranged in the upper chamber
4 is connected to the rotary shaft 68 via a shaft joint 76.
A drain port 78 for draining water that has passed through the dehydration basket 72 is provided on the side surface of the case 58.

A motor 66 is provided in the room below the case 58.
A speaker 48 for outputting a sound for muffling is provided toward the front side, and a muffling controller 44 is attached to a side surface of the case 58. The motor 66 is provided with the sound collection microphone 50, and the cover 80 of the mute controller 44 is provided with the evaluation microphone 5.
2 are installed.

In this embodiment, after the garbage is put into the dehydration basket 72, the motor 66 is operated to centrifugally dehydrate the garbage. The dehydration drainage is discharged from the discharge port 78. The shaft coupling 76 is of a type that receives the rotating shaft 74 from above, and after the dehydration is completed, the dehydrating basket 72 is attached to the rotating shaft 7.
4 and 4 are pulled upward from the case 58 to take out dehydrated raw garbage from the dehydrated basket 72.

A sound having a phase opposite to that of the sound generated by the operation of the motor 66 is output from the speaker 48 toward the motor 66, whereby the operation sound of the motor 66 is reduced.

In the active silencer used in these embodiments, as shown in FIG. 3, after the detection sound of the microphone 50 is amplified by the amplifier 83, the low pass filter (LPF) is used.
Only low frequency sound signals in the audible band are selected through 84. This low frequency sound signal is A / D converted by the A / D converter 85, and converted into a phase inversion signal by the digital filter (DF) 86. This inverted signal is D / A converted by the D / A converter 87.
After the conversion, the signal is amplified by the amplifier 88 and a sound is output from the speaker 48. The sound output to the speaker 48 is the microphone 5
It is an interference sound having a phase opposite to that of the sound detected by 0 or the sound that is currently being detected, and active muffling is performed.

In this embodiment, adaptive active noise reduction is also used, and the adaptive active noise reduction microphone (evaluation microphone) is used.
52 is provided and an amplifier 9 for adaptive active muffling
2. A low pass filter 93, an A / D converter 94 and an adaptive controller 95 are installed. The sound detected by the evaluation microphone 52 is amplified and then low-pass filtered (LPF).
After passing through 93 and being A / D converted, it is inputted to the adaptive controller 95. The adaptive controller 95 determines whether the silencing effect is sufficiently exerted, and the digital filter (DF) 8
A control signal is sent to the amplifier 6 and the amplifier 88 to optimize the phase of the reversal signal and the sound pressure of the reversal sound, and perform sufficient silencing.

In the present invention, the active silencer may always be in the operating state, but noise is actually generated in order to reduce the operating frequency of the speaker and the microphone and enhance their durability. It is preferable to activate the active silencer only when.

To this end, when the motor of the garbage processing machine is switched on, this ON signal is sent to the mute controller 4
It is preferable to input to No. 4 to activate the mute. Further, the silencing operation may be performed only when the operating sound is higher than a predetermined value.

It is often the case that the noise is annoying at night when the surroundings are quiet. Therefore, it is possible to operate the active silencer only at night without operating during the day, or when the ambient noise level is a predetermined value. The active silencer may be activated only when the temperature is lower than that.

Although noise is collected by the sound collecting microphone 50 in the above embodiment, a vibration sensor may be used instead of the sound collecting microphone 50.

In the above embodiment, adaptive active muffling is performed. However, in the present invention, noise data corresponding to the frequency (50 Hz or 60 Hz) of the commercial power source is stored in advance in the memory, and interference is performed based on this stored data. Sound may be output.

In the above embodiment, the operation noise of the motor is actively silenced, but the dehydration noise of garbage and the draining noise of the dehydration basket may also be actively silenced.

[0033]

As described above, according to the garbage disposal of the present invention, the operation noise of the motor can be remarkably reduced by the active noise reduction.

According to the garbage disposal of claims 2, 3 and 4, the frequency of operation of the active silencer is low and the durability thereof is good.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a crushable type garbage disposal according to an embodiment.

FIG. 2 is a vertical cross-sectional view of a centrifugal dewatering type garbage disposal according to an embodiment.

FIG. 3 is a block diagram showing a configuration of an active silencer.

[Explanation of symbols]

 10 Sink 14 Adapter 16 Case Upper 18 Case Lower 24 Motor 34 Impeller 42 Discharge Port 44 Mute Controller 48 Speaker 50 Sound Collection Microphone 52 Evaluation Microphone 58 Case 66 Motor 72 Dewatering Basket 78 Discharge Port

Claims (4)

[Claims] 1. A raw garbage processing machine, which is attached to a sink and crushes or dehydrates raw garbage, is provided with an active silencer for silencing the operating noise of the raw garbage processing machine. Machine. 2. The garbage disposal according to claim 1, wherein the active noise eliminator is operated when the motor for operating the garbage disposal is started to be energized. 3. The garbage disposal according to claim 1, wherein the active noise eliminator is activated only when the ambient sound at night or in the surroundings is lower than a predetermined level. 4. The garbage disposal according to claim 1, wherein the active noise eliminator is activated only when the operation noise of the garbage disposal is higher than a predetermined level.