KR200495139Y1 - Dryer with Microwave Oven - Google Patents

Abstract

The present invention relates to a dryer that combines the functions of a microwave oven to perform heating by microwave and drying according to air circulation. The dryer that has the function of a microwave oven includes a drying chamber having a drying chamber for carrying in an object to be dried therein, an entrance formed in the drying chamber for carrying in or taking out an object to be dried into the drying chamber, an entrance and exit door for opening and closing the entrance, and the drying chamber A magnetron installed on the upper part of the drying chamber to emit microwaves to the lower part of an air inlet for introducing the air of the power supply into the power receiving part, a blower fan forcibly introducing air into the power receiving part through the air inlet, and air in the upper part of the drying chamber to introduce the air introduced into the air inlet into the drying chamber A drying introduction unit composed of a plurality of circulation holes for circulation, an exhaust unit composed of a plurality of circulation holes through which air that absorbs moisture from a drying object and discharges the air introduced into the drying chamber through the drying introduction unit to the outside is circulated, and the power receiving unit A discharge port that is formed and directly discharges the air heat-exchanged with the power supply in the power receiving unit to the outside through the air inlet, and is installed in the discharge port to selectively open the discharge port to be introduced into the air inlet and a drying selection door for drying the object by exhausting air directly to the discharge port or by closing the discharge port to introduce air introduced into the drying chamber through the drying introduction unit. Accordingly, there is an advantage that drying and heating are possible.

Description

Dryer with Microwave Oven

The present invention relates to a dryer that combines the functions of a microwave oven to perform heating by microwave and drying according to air circulation.

In general, a microwave oven emits microwaves and heats an object to be heated by heat generated by actively moving water molecules by the microwaves.

In a typical microwave oven, a magnetron emitting microwaves is installed on the side of the heating chamber, and electromagnetic waves emitted from the magnetron are reflected from the wall of the heating chamber to heat the object to be heated brought into the center of the heating chamber.

However, since the microwave oven has a closed structure so that air is not introduced, air for drying cannot be provided into the drying chamber, so it only performs a function of heating the object to be heated and cannot dry the object to be dried.

In order to solve this problem, in the prior art, there has been disclosed a "food waste drying apparatus combined with a microwave oven" of Korean Patent Application Laid-Open No. 10-2015-0138607 (published on Dec. 10, 2015).

The above-mentioned conventional microwave oven combined food waste drying apparatus includes: a case having a drying chamber formed therein to accommodate food waste; a magnetron provided inside the case to emit microwaves; a weight measuring unit installed inside the case and measuring the weight of the food waste accommodated therein; a control unit connected to the magnetron and the weight measurement unit to control the operation of the magnetron according to the weight of the food waste measured by the weight measurement unit; an exhaust pipe connected to the case to communicate with the drying chamber; and an exhaust fan installed in the exhaust pipe.

In the conventional food waste drying apparatus combined with a microwave oven having this configuration, the food waste is heated using a microwave and the weight of the food waste is measured to determine the degree of drying of the food waste and the completion time of drying.

However, since the conventional food waste drying apparatus combined with a microwave oven introduces outdoor air directly into the room, there is a problem in that the drying property is not uniform depending on the temperature of the outside air. There was a problem in that the consumption of electricity increased because the temperature had to be increased.

The present invention has been devised to solve the above problems, and the problem to be solved by the present invention is that it can perform the function of a dryer together with the function of a microwave oven, and the moisture of the introduced outdoor air is heated by the heat of the power supply device. A dryer with the function of a microwave oven can reduce electricity consumption by introducing air having a uniform dryness to the drying room by removing it and introducing the air having a uniform dryness into the drying room, while improving the drying property and bringing the air heated by the power supply into the drying room. intended to provide

Another object of the present invention is to provide a dryer having a function of a microwave oven, which has a relatively simple configuration and can reduce manufacturing cost.

The dryer having the function of a microwave oven according to an embodiment of the present invention for achieving the above object is a drying chamber having a drying room inside which is carried in the object to be dried; A doorway is formed, an entrance door that opens and closes the doorway, a magnetron installed on the upper part of the drying body to emit microwaves to the lower part of the drying room, and a power supply device that divides the upper part of the drying room and supplies power to the magnetron. a power accommodating unit to be used, an air inlet for introducing external air for cooling the power supply to the power receiving unit, a blower fan forcibly introducing air into the power accommodating unit through the air inlet, introduced into the air inlet A drying introduction part composed of a plurality of circulation holes through which air is circulated in the upper part of the drying chamber to introduce air into the drying chamber, and the air introduced into the drying chamber through the drying introduction part to absorb moisture from the object to be dried and discharge the air to the outside. An exhaust portion consisting of a plurality of distribution holes that become Optionally, by opening the outlet to exhaust the air introduced into the air inlet directly to the outlet, or by closing the outlet to introduce air introduced into the drying chamber through the drying inlet to dry the object to be dried. includes a door.

According to the present invention, the drying property can be improved by drying the air introduced into the drying chamber by the heat generated by the power supply and introducing the dried air into the drying chamber at the same time, and a separate heating device according to the temperature difference There is an advantage in that it is possible to reduce the consumption of electricity because it is not necessary to introduce the heated air into the furnace.

In addition, since the drying function and the microwave oven function can be selected and operated only by the operation of the drying selection door, the manufacturing cost can be reduced with a relatively simple structure.

1 is a perspective view illustrating a dryer having a function of a microwave oven according to an embodiment of the present invention.
2 is a plan cross-sectional view of the power receiving part of the dryer having the function of a microwave oven according to an embodiment of the present invention.
3 is a front cross-sectional view of a dryer having a function of a microwave oven according to an embodiment of the present invention.
4 is a cross-sectional side view of a dryer having a function of a microwave oven according to an embodiment of the present invention, and shows an operating state when the function of a microwave oven is performed.
5 is a cross-sectional side view of a dryer having a function of a microwave oven according to an embodiment of the present invention, and shows an operating state when the drying function is performed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 4 , the dryer 100 having the function of a microwave oven according to an embodiment of the present invention may include a dryer main body 110 .

The drying main body 110 may have a drying chamber 111 capable of accommodating an object to be dried therein.

An entrance 113 capable of bringing in or taking out an object to be dried into or out of the drying chamber 111 may be formed on the front surface of the drying main body 110 , and an entrance door 115 is installed at the entrance 113 to open the entrance 113 . can be open or closed.

A power accommodating unit 120 in which a power supply device 135 for supplying power for operation is accommodated may be formed on the upper portion of the drying main body 110 .

Here, the power supply 135 may include a transformer that converts voltage and current.

The power accommodating unit 120 may be formed by installing the upper cover 140 on the upper part of the drying main body 110 to form the upper part of the drying main body 110, or by dividing the upper part of the drying chamber 111 by a diaphragm part. there is.

In the embodiment, the power supply unit 135 is installed on the upper part of the drying main body 110 , and the power receiving part 120 is formed in the form of covering the upper cover 140 on the upper part of the drying main body 110 .

On the other hand, an air inlet 141 for cooling the power supply 135 by introducing external air into the power receiving unit 120 may be formed in the upper cover 140 , and the air inlet 141 has an external A blowing fan 150 for forcibly introducing air into the power receiving unit 120 may be installed.

In addition, in the front of the upper surface of the drying main body 110 , it is introduced into the power receiving unit 120 and dried by the heat of the power supply device 135 , or the dried air is dried by exchanging moisture with the power supply device 135 in the drying chamber. A drying introduction part 117 introduced at 111 may be formed.

The drying introduction unit 117 may be formed in a form through which a plurality of distribution holes are penetrated, and the drying introduction unit 117 is located on the upper surface of the drying chamber 111 located in the direction in which the entrance 113 is located in the power receiving unit 120 . can be formed.

The drying introduction part 117 may be formed on the upper surface of the drying main body 110 in the form of perforating a plurality of flow holes through which air can flow, and the plurality of flow holes are discharged from the magnetron 130 to be described below. The wavelength of the microwave may be formed in a size that is not emitted to the outside.

In the embodiment, the drying introduction part 117 is installed with a magnetron 130 emitting a microwave of 2,470Mh having a wavelength of 11.8cm, so the size of the distribution hole has a diameter of about 3 to 3.5mm and an interval of 3 to 4mm. It was formed so as to block the outflow of microwaves emitted into the drying chamber 111 to the power receiving unit 120 through the drying introduction unit 117 .

In addition, in the embodiment, when the upper surface of the drying main body 110 is 100, the drying introduction part 117 forms a plurality of distribution holes in an area of 50, that is, about 1/2 in the direction in which the entrance 113 is located. was formed in the form

On the other hand, in the drying chamber 111 , the exhaust unit 119 for discharging air containing moisture generated while heating the object that is introduced into the drying chamber 111 through the drying introduction unit 117 to the outside is the drying main body 110 . It can be formed through.

The exhaust unit 119 may have a plurality of distribution holes penetrating through the drying chamber 110 in the lower part of the wall surface of the drying chamber 111 facing the entrance 113, similarly to the distribution hole of the drying introduction unit 117, A plurality of flow holes constituting the exhaust unit 119 are also formed to have a size of about 3 to 3.5 mm and an interval of 3 to 4 mm, similar to the flow holes formed in the drying introduction unit 117, and have a wavelength of 2,470 Mh having a wavelength of 11.8 cm. It is possible to prevent microwaves from being emitted to the outside.

In the embodiment, when the area of the wall surface of the drying chamber 111 on the wall surface of the drying chamber 111 facing the entrance 113 is 100, the exhaust unit 119 penetrates through a plurality of flow holes in an area of 1/3. formed in the form of

On the other hand, on the upper surface of the power receiving unit 120 in the opposite direction to the air inlet 141, the air introduced into the power receiving unit 120 through the air inlet 141 by the blowing fan 150 is discharged to the outside. A discharge port 143 may be formed.

1 to 5 , the dryer 100 having the function of a microwave oven according to an embodiment of the present invention may include a drying selection door 160 .

The drying selection door 160 may be installed in the discharge port 143 to open or close the discharge port 143 .

After the drying selection door 160 opens the discharge port 143, the air introduced into the power receiving unit 120 through the air inlet 141 by the blower fan 150 exchanges heat with the power supply device 135. The air introduced into the power receiving unit 120 through the air inlet 141 by the blower fan 150 by directly exhausting the exhaust port 143 or by closing the discharge port 143 is heated after heat exchange with the power supply device 135 . By being introduced into the drying chamber 111 through the drying introduction unit 117 in the dry state, the drying object carried into the drying chamber 111 may be dried and then discharged through the exhaust port.

In the embodiment, the drying selection door 160 is configured to open and close the discharge port 143 by rotating, but the drying selection door 160 may be configured to open and close the discharge port 143 by sliding.

2 to 4 , the dryer 100 having the function of a microwave oven according to an embodiment of the present invention may include a magnetron 130 .

The magnetron 130 may emit microwaves to heat the object to be dried by the microwaves.

The magnetron 130 may be installed in the power accommodating part 120 located on the upper part of the drying main body 110 , and the electron gun emitting microwaves from the magnetron 130 is exposed to the lower part of the drying chamber 111 , and the drying chamber 111 . ) can emit microwaves toward the bottom.

On the other hand, a plurality of magnetrons 130 are installed on the upper part of the drying main body 110 to emit microwaves for each magnetron 130 , and the magnetron 130 is a power supply unit 135 accommodated in the power receiving unit 120 . ) can be supplied with power and emit microwaves.

In the embodiment, since a plurality of magnetrons 130 are installed and microwaves are reflected and heated by a reflecting plate 131 to be described below, there is no need to install a rotating disk unlike a general microwave oven.

In the embodiment, two magnetrons 130 emitting a microwave of 2,470Mh each having an output of 700W and a wavelength of 11.8cm are placed on the same line at the upper center of the drying main body 110. The distance between the electron guns is 13 to 15cm. installed to have

2 to 4 , the dryer 100 having the function of a microwave oven according to an embodiment of the present invention may include a reflecting plate 131 .

The reflector 131 is installed at the bottom of the electron gun to reflect the microwaves emitted from the electron gun back to the upper surface where the electron gun is installed. can do.

The reflector 131 may be installed for each electron gun, and the reflector 131 may reflect microwaves emitted from the electron gun in a state spaced apart from the lower part of the electron gun at a preset interval.

In the embodiment, the reflector 131 was installed at an interval of 11.5 mm to 12.5 mm below the electron gun.

The reflection plate 131 may include an intermediate reflection plate 133 .

The intermediate reflector plate 131 may be disposed between the magnetrons 130 positioned on both sides to prevent mutual interference of microwaves reflected by the reflector plate 131 in each magnetron 130 , and the magnetrons 130 positioned on both sides. ) by being biased in the direction in which any one of them is positioned, any one of the magnetrons 130 reflected through the reflectors 131 positioned in front of the magnetrons 130 positioned on both sides are reflected back to the mutual of the magnetrons 130 interference can be prevented.

The reflecting plate 131 may be implemented in the form of painting with a paint that reflects or blocks microwaves on the heat-resistant plate.

The dryer 100 having a function of a microwave oven according to an embodiment of the present invention may include a controller.

This controller can control the operation of the magnetron 130 and the blower fan 150, the controller can adjust the output of the magnetron 130 to adjust the temperature of heating the object to be dried, the controller can heat the object You can control the magnetron 130 by selecting a time.

Meanwhile, the controller may control the blowing fan 150 to operate together when the magnetron 130 is operated.

The operation and effect between each configuration described above will be described.

The dryer 100 having the function of a microwave oven according to an embodiment of the present invention opens the access door 115 to bring the object to be dried into the drying room 111 through the doorway 113, and closes the access door 115 to The entrance 113 is sealed.

As shown in FIG. 4 , when the object to be dried is heated by the function of a general microwave oven, the discharge port 143 is opened by the drying selection door 160 .

In this state, when the desired temperature and operating time are set through the controller, the controller supplies power corresponding to the output from the power supply device 135 to the magnetron 130 , and microwaves are emitted from the electron gun of the magnetron 130 .

The emitted microwave is reflected in the drying chamber 111 and heats the object to be dried carried into the drying chamber 111 .

At this time, the microwaves emitted from the magnetrons 130 located on both sides are reflected by the reflector 131 positioned in front of the electron gun, and an intermediate reflector 133 is installed between the reflectors 131 to reflect microwaves from either side. By reflecting again from the intermediate reflector 133, microwaves reflected from both sides by the reflector 131 are prevented from interfering with each other, and uniform heating can be performed.

On the other hand, when the magnetron 130 operates, the blowing fan 150 also operates to lower the temperature of the power supply 135. When the blowing fan 150 operates, the blowing fan 150 is installed in the air inlet ( External air is introduced into the inside of the power receiving unit 120 through 141 , and the introduced air exchanges heat with the power supply 135 and is discharged to the outside through the discharge port 143 , while the blowing fan 150 ) performs the function of a general microwave oven to cool the power supply device (135).

At this time, some of the air supplied to the power receiving unit 120 may be introduced into the drying chamber 111 through the drying introduction unit 117 , but the drying introduction unit 117 has a high resistance because it is configured in a perforated type, and most of the air of the air is discharged to the discharge port (143).

As shown in FIG. 5 , in order to perform the drying function of drying the object to be dried, the control When the desired temperature and operating time are set through , the controller supplies power corresponding to the output from the power supply device 135 to the magnetron 130 , and microwaves are emitted from the electron gun of the magnetron 130 .

The emitted microwave is reflected in the drying chamber 111 while being reflected in the drying chamber 111 through the reflecting plate 131 through the electron gun to heat the object to be dried.

At this time, an intermediate reflection plate 133 is installed between the reflection plates 131 located on both sides, and any one of the microwaves reflected through the reflection plates 131 located on both sides is reflected back by the intermediate reflection plate 133, Interference with each other can be prevented.

At the same time, according to the operation of the blower fan 150, external air is introduced into the inside of the power receiving unit 120 through the air inlet 141, and the introduced air is heated by the power supply device 135 to release moisture. Since the discharge port 143 is blocked by the drying selection door 160 in the evaporated state, it is introduced into the drying chamber 111 through the drying introduction unit 117 .

The heat-dried air introduced into the drying chamber 111 passes through the drying chamber 111 , absorbs moisture from the drying object brought into the drying chamber 111 , dries the drying object, and then is discharged to the outside through the exhaust port.

Here, in the case of the dryer 100 having an output of 1000W, approximately 700W of power required for heating is required, and the remaining 300W is consumed by the power supply device 135 that converts power and some of it is converted into heat. Since the power supply device 135 is installed in the unit 120 , the air introduced into the power receiving unit 120 by the blower fan 150 is dried while being heated by the heat generated by the power supply unit 135 and dried in the drying chamber. (111) can be introduced.

Of course, while the object to be dried is heated by the magnetron 130, the discharge port 143 is closed through the drying select door 160 to supply the air from the power receiving unit 120 to the object to be dried while heating. In addition, by closing the discharge port 143 by the drying selection door 160 and drying the object to be dried by the magnetron 130, the discharge opening 143 is opened by the drying selection door 160 to the magnetron 130. It is also possible to heat the to-be-dried object only by

The applicant of the present invention performed the following tests to prove the effect of the present invention.

In the dryer 100 that performed the test, each magnetron 130 according to the embodiment installed two 700W magnetrons 130 emitting a microwave of 2,470Mh having a wavelength of 11.8cm, and operated with a total output of 1400W. did

In the first experiment, in a state in which the intermediate reflection plate 133 is removed to test the performance of the intermediate reflection plate 133, the dryer 100 is heated only by microwaves without the function of the drying selector door 160 through the discharge port 143. was carried out in a fully open state.

Each test was tested by continuous heating for 35 minutes, and the sample was used by cutting a raw material. After drying, the weight was measured while the heated sample was completely cooled, and an electronic scale with a precision of ±5 g was used for the weighing scale.

Each test was carried out in the form of measuring the weight before drying, the weight after drying, and the exhaust temperature and exhaust humidity of 8 samples of different weights. (143) and measured.

The results of the first experiment are shown in Table 1 below.

In the second experiment, the intermediate reflector 133 was installed under the same conditions as in the first experiment, and heating performance was measured.

The results of the second experiment are shown in Table 2 below.

In the third experiment, the drying performance was measured in a state in which the discharge port 143 was closed through the drying selection door 160 to perform the dryer 100 function under the same conditions as the first experiment (intermediate reflector 133 was removed) , exhaust temperature and exhaust humidity are measurements of the temperature and humidity of the air discharged through the exhaust port at the time the 35-minute test is finished, and ΔT is the temperature difference between the power supply receiving unit 120 and the atmosphere).

The results of the third experiment are shown in Table 3 below.

In the fourth experiment, the drying performance was measured in a state in which the discharge port 143 was closed through the drying selection door 160 to perform the dryer 100 function under the same conditions as the first experiment (intermediate reflector 133 installation). Note, exhaust temperature and exhaust humidity are the measurements of the temperature and humidity of the air discharged through the exhaust port at the end of the 35-minute test, and ΔT is the temperature difference between the power supply receiving unit 120 and the atmosphere).

The results of the fourth experiment are shown in Table 4 below.

Table 5 comprehensively shows the results according to the first to fourth experiments.

As shown in Table 5 above, in the first experiment and the second experiment in which heating was performed only by the magnetron 130 without introduction of external air, the second experiment in which the central reflector 131 was installed had a higher drying amount than the first experiment, and the exhaust temperature It can be seen that the heating performance is further improved because

In addition, the fourth experiment in which the intermediate reflector 133 is installed in the third experiment and the fourth experiment of performing the dryer 100 function of introducing external air into the drying chamber 111 by closing the discharge port 143 is the first experiment Since the drying amount is higher and the humidity of the air exhausted to the exhaust unit 119 is high, it can be seen that the drying property is further improved.

And, in preparation for the first experiment and the second experiment of heating only by the magnetron 130, the third experiment and the fourth experiment of introducing air into the drying chamber 111 have high drying amount and exhaust temperature, so power is not consumed without consumption of electricity. It can be seen that the air can be heated by the supply device 135, so that electricity consumption can be reduced, and the drying property is excellent.

Accordingly, the dryer 100 having the function of a microwave oven according to an embodiment of the present invention can introduce outdoor air into the drying chamber 111 to dry the object with heating while implementing the function of a general microwave oven.

In addition, when the outdoor air is introduced into the drying chamber 111 by drying the air by the heat generated by the power supply device 135 , the drying property for drying the object to be dried can be improved.

In addition, the reflection plate 131 is installed under the magnetron 130 to uniformly heat the object, and it is possible to prevent mutual interference between the magnetrons 130 positioned on both sides by the intermediate reflection plate 133 .

In the above, embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and it is easily changed by those of ordinary skill in the art to which the present invention belongs from the embodiments of the present invention and recognized as equivalent. including all changes and modifications to the scope of

100: dryer with microwave function 110: dryer main body
111: drying room 113; entrance
115: entrance door 117: drying introduction part
119: exhaust unit 120: power receiving unit
130: magnetron 131: reflector
133: intermediate reflector 135: power supply
140: upper cover 141: air inlet
143: outlet 150: blower fan
160: dry select door

Claims (1)

Drying main body with drying room inside to bring in the to-be-dried,
an entrance formed in the drying main body to bring in or take out the object to be dried into the drying room;
an entrance door that opens and closes the entrance,
A magnetron installed on the upper part of the drying chamber to emit microwaves to the lower part of the drying chamber;
A power receiving unit in which a power supply device for supplying power to the magnetron by dividing the upper part of the drying chamber is installed;
an air inlet for introducing external air for cooling the power supply device into the power receiving unit;
a blower fan forcibly introducing air into the power receiving unit through the air inlet;
A drying introduction part composed of a plurality of circulation holes through which air is circulated in the upper part of the drying chamber to introduce heated air introduced into the air inlet and heat-exchanged with the power supply into the drying chamber;
an exhaust unit composed of a plurality of circulation holes through which the air introduced into the drying chamber through the drying introduction unit absorbs moisture from a drying object and discharges to the outside;
a discharge port formed in the power receiving unit and directly discharging the air heat-exchanged with the power supply in the power receiving unit through the air inlet to the outside; and
Open the outlet to exhaust the air introduced through the air inlet and heat exchanged with the power supply to the outlet, or close the outlet to introduce air that has been heat-exchanged with the power supply into the drying room to avoid and a drying selection door installed at the outlet to selectively open and close the outlet to dry the building,
and a reflective plate installed under the magnetron to reflect microwaves emitted from the magnetron so that the object to be dried is uniformly dried.

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