JP3448807B2 - Microwave type garbage processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven type food waste processing machine for drying food waste by microwave.

[0002]

2. Description of the Related Art Conventionally, as a garbage disposal used in general households, as disclosed in, for example, Japanese Patent Application Laid-Open No. 11-333424, a bio-based garbage disposal system for decomposing garbage by utilizing microorganisms is used. Things are known. This bio-based garbage processing machine stirs the biochip (raw garbage processing material) filled in the garbage processing tank together with the garbage with a stirring blade, and heats the garbage processing tank with an electric heater. However, the exhaust fan supplies outside air to activate microorganisms to decompose food waste, and the product is provided by Matsushita Electric Works Co., Ltd., which can contribute to the reduction of household garbage. It is well-received because it can use the raw garbage as it is as compost.

[0003] However, this bio-based food waste disposer generates a bad odor because it is accompanied by fermentation by microorganisms, requires a separate catalytic deodorizing device, or is installed only near an outdoor power source. It takes several days, and it takes time and money to replace the garbage processing material.

By the way, microwave ovens are widely used in most households and are easily used at home as daily necessities, but their use is limited to heating, thawing and cooking food and drink. There was no such thing as exhausting the steam generated by to dry the processed material.

In view of the above-mentioned problems of the bio-based food waste disposer, and the widespread use and usage of microwave ovens, the present invention uses the same manner as cooking food waste in a microwave oven. It is an object of the present invention to provide a simple microwave oven type food waste disposer which can be easily dried in a general household.

[0006]

According to the present invention, raw garbage is put in a heat-resistant raw garbage container that transmits microwaves from a magnetron, and the raw garbage is placed in a microwave irradiation chamber surrounded by a microwave reflection plate in the housing. This is a microwave oven type food waste processing machine in which a food waste container is detachably set and the food waste contained therein is dried, and the features thereof are as follows.

A rotation pedestal on which a garbage container is detachably mounted is rotatably supported by a motor in a housing. The cutter connecting shaft rotated by the cutter motor is pierced through the bearing portion of the rotary pedestal so as to form a concentric double shaft structure with the shaft.
At the upper end of the cutter connecting shaft that protrudes above the rotary pedestal,
A rotating cradle side joint was provided. A drain discharge opening was provided at the bottom of the garbage container. The cutter shaft is rotatably supported in the garbage container by a cutter shaft that penetrates the bottom of the garbage container. By mounting the garbage container on the rotary pedestal, a cutter-side joint that is vertically opposed to the rotary pedestal-side joint to form a fitting relationship between male and female is provided at the lower end of the cutter shaft. Provided on the outer surface of the bottom portion of the garbage container is a pedestal portion that covers the shaft joint formed by the fitting of the cutter side joint and the rotary cradle side joint and is placed on the rotary cradle. A container for positioning and fixing the raw garbage container on the rotary pedestal by rotating the raw garbage container and placing the pedestal portion on the rotary pedestal to engage the pedestal portion and regulate its vertical movement. The stopper for fixing is provided on the rotation pedestal. It was equipped with a fan that forcedly evacuated the microwave irradiation chamber.

[0008] That is, the present invention is mainly intended to easily dry the relatively small amount of raw garbage, which is generated daily in general households or small-scale stores, by microwaves. The garbage container is removable in the microwave irradiation chamber for the purpose of facilitating handling when putting the garbage into the garbage processor and discarding it after drying it, and also for cleaning the garbage container. It is a method to set to. Secondly, for the purpose of promoting the drying in the garbage container and facilitating the disposal of the garbage after drying, the garbage is finely cut by a cutter that rotates in the garbage container. Thirdly, for the purpose of facilitating cleaning and replacement of the cutter, the cutter is built in the removable garbage container itself. Fourthly, for the purpose of improving the stirring and cutting by the cutter in the garbage container and further promoting the drying, the garbage container is detachably mounted on the rotary pedestal and rotated. . Fifth
In addition, if the food waste container is detachably mounted on the rotation pedestal and rotated as described above, the food waste container swings and becomes unstable during rotation. A pedestal is provided on the outer surface of the bottom of the garbage container, and the pedestal is fixed on the rotation receiving table by a container fixing stopper of the rotation receiving table. Sixth, although the method of mounting the garbage container on the rotating pedestal for attachment and detachment has been adopted, since the attachment and detachment must be performed each time the garbage is dried, the attachment and detachment is facilitated and the garbage container is In order to prevent it from coming off from the rotation pedestal even if it swings together with the rotation pedestal, by placing the pedestal on the rotation pedestal while rotating the garbage container, The structure is such that the garbage container is positioned and fixed in a state in which it is engaged with the container fixing stopper and its vertical movement is restricted. Seventh, the cutter inside the garbage container must be rotated by a motor, but since the garbage container is removably mounted on the rotation pedestal, it is only necessary to mount it on the cutter motor. In order to enable rotation transmission, the cutter-side joint and the rotation pedestal-side joint are in a male-male fitting relationship in which they are fitted vertically facing each other. Eighth, the shaft joint that is the mating relationship between the male and female
In order to prevent exposure to heat and steam, the pedestal of the garbage container is used to cover this shaft joint. Ninth, in order to simplify the shaft part of the rotary pedestal that rotates by mounting the garbage container and the shaft part for rotating the cutter, and to stabilize the rotation of both the garbage container and the cutter. Therefore, the shafts of both the rotary pedestal and the cutter have a concentric double shaft structure. Tenth, when cutting with a cutter, a large amount of waste liquid is generated from raw garbage as described above, and microwaves tend to be absorbed toward moisture, and if the humidity in the microwave irradiation chamber is high, the drying efficiency is poor. Therefore, for the purpose of removing water (vapor) from the microwave irradiation chamber, forced exhaust is performed by a fan. Eleventh, since microwaves tend to be absorbed toward moisture, drying efficiency deteriorates when the humidity in the microwave irradiation chamber is high. Therefore, for the purpose of removing moisture (vapor) from the microwave irradiation chamber, It is designed to be forcedly exhausted by a fan.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

This microwave oven type food waste disposer has a structure in which a normal microwave oven capable of heating, thawing and cooking food and drink is remodeled, and a description of the parts of the ordinary microwave oven is omitted. Only the configuration of the parts necessary for dust disposal will be described.

In FIG. 1, a microwave irradiation chamber 2 surrounded by a metal plate that reflects microwaves is formed in a housing 1, and a magnetron 3 installed inside the housing 1 outside a side wall 2a of the microwave irradiation chamber 2 is connected to the microwave irradiation chamber 2. Microwaves are irradiated into the wave irradiation chamber 2.

On the ceiling 2b of the microwave irradiation chamber 2, a heater (electrothermal heater) is provided as a hot air supply unit.
4, an intake fan (fan motor) 5 that takes in the outside air is installed on the upper part of the outer wall of the housing 1, and the outside air taken in by the intake fan 5 is heated by the heater 4 in the duct 5a, so that the ceiling Hot air is blown downward from the hot air blowing port 6 at the center of the portion 2b.

At the center of the bottom of the microwave irradiation chamber 2, a turntable 7 which doubles as a rotation receiving stand and a waste liquid receiving tray is removably mounted on a rotating plate 8. A key groove 7a provided on the turntable 7 is fitted to a pin 8a projecting from the upper surface of the rotary plate 8 so that the turntable 7 rotates integrally with the rotary plate 8 when mounted. The rotating plate 8 rotates integrally with the rotating core 9 which is supported in the center of the bottom of the microwave irradiation chamber 2. FIG. 2 shows the rotary plate 8 and the rotary core 9. The rotating core 9 includes a rotating shaft of a turntable motor 10 installed on the bottom of the housing 1 and
The turntable 7 is connected through a pulley and a belt 11 and is driven by the motor 10.

A garbage container 12 is placed on the turntable 7.
Is detachably mounted in the microwave irradiation chamber 2. The garbage container 12 is made of a heat-resistant material that transmits microwaves, and has a circular body 12a as shown in FIG.
The lower part 12b of the body has a truncated cone shape that tapers toward the bottom, and the upper end 12c of the body has a truncated cone shape that tapers toward the opening on the top surface. The part 13 is integrally formed, and the body part 1 is further formed.
A handle 14 is provided on the outer surface of 2a. Vent holes 15 for improving air permeability are provided at equal intervals all around the upper end 12c of the body that is frusto-conical and is inclined upward.
In addition, a plurality of drain holes 16 (see FIG. 1) that serve as drain discharge openings are provided at the bottom of the garbage container 12.

The turntable 7 serves as a rotation pedestal, and the food waste container 12 is detachably mounted on the turntable 7 so as to rotate integrally therewith. Therefore, the pedestal portion 13 of the food waste container 12 has a peripheral wall. , The horizontally elongated key groove 17 is formed at a plurality of locations (three locations in the figure), and at the lower edge of the peripheral wall,
The drain groove 16a is formed at a plurality of locations (three locations in the figure). The width of each key groove 17 increases in the vertical direction from one end side to the other end side, and a small recess 17a is formed on the other end side having a large width. Correspondingly, as the container fixing stopper, the same number of protrusions 18 as the key grooves 17 are provided to project upward at the center of the upper surface of the turntable 7, and each of the protrusions 18 is provided with a pin roller 19 horizontally projected. ing.

Therefore, when the garbage container 12 is mounted on the turntable 7, the pin rollers 19 are connected to the key grooves 17 respectively.
When the garbage container 12 is rotated a little in the state of being fitted with
The pin roller 19 is provided in the recess 17a of each key groove 17.
The food waste container 12 is positioned and fixed on the turntable 7 in a state where the food is dropped.

As shown in FIGS. 1 and 4, a cutter 20 is rotatably supported on the center of the bottom of the garbage container 12. The cutter 20 has a plurality of blades 21 that also function as stirring blades and radially protrudes from a core 22. The lower end of a cutter shaft 23 that penetrates the bottom of the raw garbage container 12 is located below the bottom of the raw garbage container 12. The male joint 24 is fixed on the side (outer side). On the other hand, as shown in FIG. 5 (B), the male joint 24 is attached to the upper end of the cutter connecting shaft 25 that is rotatably pierced through the center of the turntable 7.
And a female joint 26 forming a shaft joint in a pair.

As shown in FIG. 4, the male joint 24 is provided with a plurality of projections 24a protruding downward at equal intervals, and the female joint 26 is formed with the same number of recesses 26a as the projections 24a at equal intervals. The same number of protrusions 26b are formed between the recesses, and the protrusions 24a of the male joint 24 are the recesses 26a of the female joint 26.
The projection 24a and the convex portion 26b are engaged with each other so as to mesh with each other. Therefore, when the garbage container 12 is set on the turntable 7 as described above, the male joint 24 and the female joint 26 are coupled, and the cutter shaft 23 is coupled to the cutter coupling shaft 25 on the turntable 7 side. The shaft joint formed by coupling the male joint 24 and the female joint 26 is covered with the pedestal portion 13 of the garbage container 12, and is protected from moisture, heat, and the like.

On the other hand, on the bottom of the casing 1, a cutter motor 27 is installed just below the rotary core 9 for the turntable 7. The motor shaft of the cutter motor 27 is directly connected to the relay shaft 28 which penetrates the rotary core 9 and is borne by the rotary core 9. The relay shaft 28 and the connecting shaft 25 bearing the turntable 7 are
The former upper end and the latter lower end are connected to each other by a concave and convex connecting portion so that they can come into contact with and separate from each other.

Therefore, the shaft portion for rotating the cutter 20 and the shaft portion for rotating the turntable 7 have a concentric double shaft structure, and the garbage mounted on the turntable 7 The container 12 is rotated integrally with the turntable 7 by the turntable motor 10, and the cutter 20 in the garbage container 12 is rotated by the cutter motor 27.
Thus, the garbage container 12 is rotated at a speed higher than the rotation speed.

Further, in the housing 1, the exhaust port 1 on the side wall thereof is provided.
An exhaust fan (fan motor) 29 for forcibly exhausting the microwave irradiation chamber 2 from a is installed, and an exhaust port opening / closing damper 32 is installed inside the exhaust fan 20. This damper 32 is a damper driving actuator 33.
Is driven to open and close.

A deodorizer can be attached to the outside or inside of the exhaust port 1a. Although not shown, sensors such as a temperature sensor for detecting the temperature in the microwave irradiation chamber 2 and a humidity sensor for detecting humidity are also provided.

Further, the waste liquid collecting container 30 collects the waste liquid flowing down from the drain hole 16 of the garbage container 12 and remaining on the turntable 7 through the drain groove 16a.
Is prepared. The waste liquid collection container 30 is detachably installed at a fixed position in the housing 1 below the turntable 7. At the fixed position, the turntable 7 is provided with a plug 31 for discharging the waste liquid in order to drop the waste liquid into the waste liquid recovery container 30. Since the stopper 31 needs to be aligned with the input port of the waste liquid recovery container 30, the rotation of the turntable 7 is opposed to the input port of the waste liquid recovery container 30 after the drying process by the function of the sensor. By the way, it is supposed to stop.

In order to dispose of raw garbage with this microwave type raw garbage processing machine, the raw garbage is put in the raw garbage container 12 outside the housing 1, and the handle 14 is held and the raw garbage container 12 is irradiated with microwaves. It is placed in the chamber 2, set on the turntable 7 as described above, the door of the housing 1 is closed, and the processing time is arbitrarily set by a timer, or a menu is selected to turn on the power. Then, the garbage table 1 is integrated with the turntable 7.
As the cutter 2 rotates at a high speed while the cutter 2 rotates, the garbage in the garbage container 12 is removed from the garbage container 1.
While being heated by the microwave passing through 2, it is cut and agitated by the cutter 20, and further dried hot air is blown from above. The stirring is also performed by rotating the garbage container 12 itself.

The steam generated in the garbage container 12 is generated by the hot air blown into the garbage container 12
2 is discharged to the microwave irradiation chamber 2, but the microwave irradiation chamber 2 is forcedly exhausted from the exhaust port 1a by the exhaust fan 29.

Therefore, the drying of raw garbage is mainly performed by microwave heating, and hot air blowing using forced intake of outside air, forced exhaust of steam (humidity), cutting by the cutter 20, cutting of the cutter 20 and the raw garbage container 12 are carried out. Since the stirring by rotation is performed at the same time, these effects are synergistically performed in a short time with high efficiency.

If the temperature of the raw garbage container 12 rises sharply or the humidity drops sharply as the raw garbage is dried, the dried raw garbage may be ignited by microwave heating. If the temperature and / or humidity in the chamber 2 or in the vicinity of the exhaust port 1a or both are detected by the sensor, and the temperature rises to the set temperature or drops to the set humidity,
The microwave irradiation from the magnetron 3 can be stopped, and then the drying can be controlled by blowing hot air.

Various control modes are conceivable, for example, the cutting by the cutter 20 is similarly stopped midway (the cutter motor 27 is stopped), and thereafter the stirring is performed only by rotating the garbage container 12.

FIG. 8 shows a modified example of the present invention, in which a turntable 34 is used in place of the turntable 7, and a female joint 26 and the like are provided on the turntable 34, as in the case of the turntable 7.
In this case, the waste liquid from the garbage container 12 is dropped to the bottom of the microwave irradiation chamber 2 and collected in the waste liquid collecting container 30.

[0030]

As described above, according to the present invention, as a raw garbage processing machine for simply drying a relatively small amount of raw garbage that is generated daily in a general household or a small store with a microwave, There is an effect like. (1) Since the garbage container is set in the microwave irradiation chamber in a removable manner, it is easy to handle when putting garbage into the garbage processor and discarding it after drying. It is easy to clean the garbage container. (2) Since the garbage is finely cut by a cutter that rotates in the garbage container, it is possible to promote the drying in the garbage container and facilitate the disposal of the garbage after drying. (3) Since the cutter is built into the removable garbage container itself, it is easy to clean and replace the cutter. (4) Since the garbage container is detachably mounted on the rotation pedestal and rotated, the stirring and cutting by the cutter in the garbage container can be improved, and the drying can be further promoted. (5) If the food waste container is detachably mounted on the rotation pedestal and rotated as described above, the food waste container swings and becomes unstable during rotation, but the bottom of the food waste container Since a pedestal portion is provided on the outer surface and the pedestal portion is fixed on the rotation receiving table by the container fixing stopper of the rotation receiving table,
The garbage container can be rotated stably. (6) Every time the raw garbage is dried, the raw garbage container must be detachably mounted on the rotary pedestal.By rotating the raw garbage container and placing its pedestal on the rotary pedestal, Since this pedestal has a structure in which the garbage container is positioned and fixed in a state in which it is engaged with the container fixing stopper of the rotation pedestal and its vertical movement is restricted, it is easy to attach and detach and the garbage container Does not come off from the rotary pedestal even if it swings together with the rotary pedestal. (7) The joint on the cutter side and the joint on the rotary cradle side have a male and female mating relationship that fits vertically facing each other, so simply by mounting the garbage container on the rotary cradle, the cutter can be mounted. Rotation can be transmitted to the cutter motor. (8) Since the shaft joint, which is the mating relationship between the male and female, is covered with the pedestal portion of the garbage container, the shaft joint can be protected from heat and steam. (9) Since the shafts of both the rotary pedestal and the cutter have a concentric double shaft structure, the shaft of the rotary pedestal that rotates by mounting the garbage container and the shaft for rotating the cutter In addition to simplifying, the garbage container and the cutter can both be stably rotated. (10) Since the drain discharge opening is provided at the bottom of the garbage container, it is possible to drain water as much as possible before setting the garbage container containing the garbage in the microwave irradiation chamber. Since the waste liquid can be discharged while drying, it is possible to avoid the delay of microwave drying due to the large amount of waste liquid generated by cutting the raw dust with the cutter. (11) Microwaves tend to be absorbed toward moisture, so if the humidity in the microwave irradiation chamber is high, the drying efficiency deteriorates. However, a fan is used to force exhaust from the microwave irradiation chamber to remove moisture (vapor). Since it is removed, the drying efficiency is good.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a microwave oven type food waste disposal machine according to the present invention.

2A and 2B show a rotary plate for holding and rotating a turntable and a rotary core thereof, FIG. 2A is a plan view, and FIG. 2B is a simplified sectional view.

3A and 3B show a garbage container, FIG. 3A is a side view, and FIG. 3B is a bottom view of a pedestal portion.

FIG. 4 is a simplified cross-sectional view of a cutter and a bearing portion thereof.

FIG. 5 shows a turntable, (A) is a bottom view,
(B) is a simplified sectional view.

FIG. 6 is a bottom view of the cutter-side male joint.

FIG. 7 shows a female joint on the turntable side, (A) is a top view, and (B) is a side view.

FIG. 8 is a schematic configuration diagram of a modified example of the present invention.

[Explanation of symbols]

1 case 1a exhaust port 2 Microwave irradiation room 2a Side wall 2b ceiling 3 magnetron 4 heating heater 5 intake fan 5a duct 6 Hot air inlet 7 turntable 7a keyway 8 rotating plate 8a pin 9 rotating core 10 Turntable motor 11 belts 12 Garbage containers 12a body 12b lower part 12c Upper part of body 13 pedestal 14 Handle 15 vents 16 drain holes 16a drain groove 17 keyway 17a recess 18 protrusions 19 pin roller 20 cutters 21 blades 22 core 23 cutter shaft 24 Male Joint 24a protrusion 25 cutter connecting shaft 26 female joint 26a recess 26b convex part 27 Cutter motor 28 Relay shaft 29 Exhaust fan 30 Waste liquid collection container 31 stopper 32 Damper for opening / closing the exhaust port 33 Actuator for driving damper 34 rotating pedestal

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI F24C 7/02 F24C 7/02 541J B09B 3/00 F26B 23/08 C ZAB B09B 3/00 ZAB F26B 23/08 303M (56) References JP-A-8-136122 (JP, A) JP-A-10-211098 (JP, A) JP-A-5-211090 (JP, A) JP-A-2-208419 (JP, A) JP-A-11 -333415 (JP, A) JP-A 1-189383 (JP, A) JP-A 8-219637 (JP, A) JP-A 4-48985 (JP, A) JP-A 11-28165 (JP, A) ) JP-A-6-101848 (JP, A) JP-A-7-223702 (JP, A) Actual development Sho 56-159142 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24C 7/02 B09B 3/00 F26B 23/08

Claims (5)

(57) [Claims] 1. Raw garbage is put in a heat-resistant raw garbage container that transmits microwaves from a magnetron, and the raw garbage container is detachably set in a microwave irradiation chamber surrounded by a microwave reflection plate in the housing. And a microwave oven type garbage disposer for drying the garbage contained therein, wherein a rotary pedestal on which the garbage container is detachably mounted is rotatably supported by a motor in the housing. The cutter connecting shaft rotated by the cutter motor is pierced through the bearing portion of the rotary pedestal so as to form a concentric double shaft structure with the shaft, and on the rotary pedestal. A rotary cradle side joint is provided at the upper end of the protruding cutter connecting shaft, a drain discharge opening is provided at the bottom of the garbage container, and a cutter shaft that penetrates the bottom of the garbage container is used. A cutter is rotatably supported in the food waste container, and the food waste container is mounted on the rotary pedestal so as to fit vertically and vertically with the rotary cradle side joint to fit a male and a female. A cutter-side joint having a mating relationship is provided at the lower end of the cutter shaft, and the outer surface of the bottom of the garbage container is rotated by covering the shaft joint by fitting of the cutter-side joint and the rotary cradle-side joint. By providing a pedestal portion to be placed on the pedestal, by placing the pedestal portion on the rotary pedestal while rotating the garbage container, the vertical movement of the pedestal portion is restricted by engaging with the pedestal portion. The microwave oven type garbage is characterized in that a container fixing stopper that positions and fixes the garbage container on the rotation receiving table in the state is provided on the rotation receiving table, and a fan for forcibly exhausting from the microwave irradiation chamber is provided. Processing machine. 2. The microwave oven according to claim 1, further comprising a tray on the side of the rotary pedestal for receiving the waste liquid falling from the drain discharge opening of the garbage container mounted on the rotary pedestal. Type garbage processing machine. 3. A microwave oven type food waste disposer according to claim 1, wherein the pedestal portion of the food waste container has a dome shape. 4. The hot air supply unit for blowing hot air from above into the garbage container mounted on the rotary pedestal is provided at the upper part of the housing as claimed in claim 1, 2, or 3. Microwave oven. 5. A control means for detecting the temperature and / or humidity near the exhaust port of the microwave irradiation chamber by a sensor to stop the cutter motor and the magnetron is provided. 2. The microwave oven according to 2, 3 or 4.