JP2007271101A - High-frequency heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-frequency heating device capable of treating remaining water caused by dew condensation with an inexpensive and simple constitution. <P>SOLUTION: In this high-frequency heating device comprising a heating chamber 1 receiving a heated object, a door 6 for opening and closing the heating chamber, a high frequency generating means 14 for heating the heated object by high frequency radio wave, an electric heating means 2 for heating the heated object, and a steam generating means 8 for heating the heated object by steam, the steam generating means 8 is disposed in the heating chamber, a drain channel 7a is formed from the steam generating means to a door portion side of the heating chamber opened and closed by the door, and a water receiving tray 5 is disposed corresponding to a terminal end drain hole 7b of the drain channel. As the remaining water of the steam condensed in the heating chamber is not accumulated, degradation of the quality of a product that is, running-over of the remaining water to the outside of a device main body in opening the door can be prevented, which reduces wiping-off work after heating of the heated object by steam, and further defective motion of the product caused by intrusion of water and electric shock trouble can be surely prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to residual water treatment using steam of a high-frequency heating apparatus that performs heat treatment of an object to be heated by combining high-frequency heating and steam heating.

Conventionally, in this type of high-frequency heating device, as shown in FIG. 8, the water discharged from the water supply nozzle 51 is heated by the evaporating dish 53 in the heating chamber 52 to become water vapor, and the air containing the water vapor is heated in the heating chamber 52. Condensation occurs and becomes residual water F in the heating chamber 52. This residual water stays in the heating chamber 52, and when the door is opened, it flows out of the ceramic tray pedestal 54 and drops on the floor. Therefore, a removable water receiving tray for preventing this is provided under the door. The configuration is known. As a result, the deterioration of the quality of the product, which is spilled out of the apparatus main body, is prevented. (For example, refer to Patent Document 1).
JP 2003-364258 A

  However, in the conventional configuration, when the amount of heating by steam is increased (the amount of steam is increased), the amount of condensation in the heating chamber, that is, the remaining water amount F in the heating chamber becomes considerably large, and the heating chamber becomes solid. Therefore, there is a concern that a wiping operation in the heating chamber is required every time, and dripping from the water receiving partition portion occurs and spills out of the apparatus main body. In other words, it is impossible to improve the safety such as preventing the product from deteriorating, preventing the malfunction of the product due to the ingress of water, and preventing from an electric shock accident.

  The present invention solves the above-described conventional problem, and allows the residual water F condensed in the heating chamber to be drained while the door is closed, thereby reducing the amount of residual water remaining in the heating chamber and wiping each time. Providing a high-frequency heating device aimed at reducing the quality of the product, such as reducing the quality of the product, preventing it from spilling out of the device body, preventing the product from malfunctioning, and preventing electric shock from entering the water. For the purpose.

  In order to solve the above-mentioned conventional problems, the high-frequency heating device of the present invention is provided with a steam generating means in the heating chamber and a drain groove extending from the steam generating means to the door side of the heating chamber that is opened and closed by the door. The water receiving tray is provided so as to correspond to the terminal drain hole of the drain groove.

  As a result, the remaining water of the water vapor that is condensed in the heating chamber will not stay, and it will prevent the product from degrading from spilling out of the main body of the device when the door is open. In addition, it is possible to prevent the malfunction of the product and to surely prevent an electric shock accident due to the penetration of the water.

  According to the high-frequency heating device of the present invention, the residual water condensed in the heating chamber can be efficiently drained to the outside of the device main body without degrading the quality of the product. In addition, no special apparatus is required in terms of configuration, and it can be achieved by remodeling part of the current components, so that it can be provided at low cost.

The first invention is a heating chamber for storing an object to be heated, a door for opening and closing the heating chamber, high-frequency generating means for heating the object to be heated by high-frequency radio waves, and electric heating for heating the object to be heated by a heater. And a steam generating means for heating the object to be heated with steam, wherein the steam generating means is provided in a heating chamber and is heated and opened by the door from the steam generating means. A drainage groove is provided on the door side of the cabinet, and a water receiving tray is provided to correspond to the terminal drainage hole of this drainage groove. Prevents the product from degrading from spilling out of the main body of the device when it is open, reducing the wiping work after heating the object to be heated with water vapor, and preventing the product from malfunctioning due to the ingress of water. From can be reliably prevented.

  In particular, the second invention is provided with an electric heating means at the lower part of the tray pedestal of the heating cabinet, and further includes a reflecting plate that reflects the radiant heat of the electric heating means into the heating cabinet. By adopting a configuration that guides the remaining water to the water receiving tray, it is possible to effectively drain the remaining water at the bottom of the inner wall of the heating chamber where the remaining water is likely to accumulate, reducing the work of wiping off the remaining water due to water vapor. While being able to promote more, the workability | operativity of heat cooking can be improved.

  The third invention is provided with an electric heating means at the lower part of the tray cradle of the heating cabinet, and includes a reflecting plate for reflecting the radiant heat of the electric heating means into the heating cabinet, and the remaining water in the heating cabinet is provided via this reflecting plate. Since the water is guided to the water receiving tray, the residual water that has flowed out of the heating chamber can be drained effectively.

  According to a fourth aspect of the present invention, a drainage hole is provided at the end of the drainage groove of the tray support, the drainage hole is opposed to the reflection plate, and the second side of the reflection plate corresponding to the drainage hole is opposed to the water receiving tray. The drain hole is provided, and the residual water flowing out from the heating chamber and the superheat chamber can be drained with a rational configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a cross-sectional view of a high-frequency heating device according to Embodiment 1 of the present invention, FIG. 2 is a perspective view for explaining the flow of the waste water, FIGS. 3 and 4 are enlarged perspective views of the same, FIGS. Is a similar enlarged sectional view, and FIG. 7 is an enlarged perspective view.

  1 to 7, reference numeral 1 denotes a heating chamber. On the inner bottom surface thereof, a ceramic dish receiving base 7 for placing an object to be heated, a heater 2 for heating the object to be heated, and a rotation for diffusing a high frequency for heating the object to be heated A waveguide 13 is attached, and an evaporating dish 8 for generating water vapor, a heating chamber rear surface wall 11 and a heating chamber bottom wall 9 are coupled by caulking. A drainage groove 7a extending downwardly toward the door 6 that opens and closes the heating chamber 1 is formed at the peripheral edge of the tray receiving plate 7 facing the inner wall of the heating chamber. As shown, a drain hole 7b is formed.

  In addition, a water receiving partition 4 is provided at the lower part of the heating chamber 1 so as to receive water leakage from the coupling portion 12 between the evaporating dish 8 and the heating chamber 1 under the evaporating dish heater below the evaporating dish 8. A drainage path through which the heater reflector 3 that reflects the radiant heat of the heater 2 as an electric heating means installed and attached to the bottom wall 9 of the heating cabinet drains the drainage from the water receiving partition 4 to the outside of the apparatus main body. As shown in FIG. 5, the second drainage hole 3a formed in the portion corresponding to the drainage hole 7a of the tray receiving base 7 is drained to the water receiving tray 5 provided outside the apparatus main body. The water receiving tray 5 is configured to store water.

In the above configuration, the residual water condensed in the heating chamber 1 flows down along the inner wall of the heating chamber, and the residual water condensed in the evaporating dish 7 portion is a drainage groove of the tray support 7 as shown in FIGS. It gathers at 7a and flows along the slope to the end of the drain on the door side. As shown in FIGS. 4, 5, and 6, the residual water that has flowed to the end of the drainage groove is dropped from the drainage hole 7 b to the heater reflection plate 3, and from the second drainage hole 3 a provided in the heater reflection plate 3. It is dropped on the water receiving tray 5 and stored.

  On the other hand, even if water leaks from the coupling portion 12 between the evaporating dish 3 and the heating chamber 1, the water leaks to the heater reflecting plate 3 through the water receiving partition 4, and the door side portion of the heater reflecting plate 3. To the second drainage hole 3a and dripped into the water receiving tray 5 together with the remaining water from the drainage hole 7a of the tray support 7 to be stored.

Therefore, even when cooking is performed with a large amount of steam supplied, the residual water generated by the steam is stored in the water receiving tray during cooking and does not stay inside, and flows out of the main body when the door is opened. In addition, it is possible to reliably prevent malfunction of the product due to water intrusion into the machine room or the like around the heating chamber, an electric shock accident, and the like, and to reduce the wiping work after heating the object to be heated with water vapor.
FIG. 2 shows a perspective view for explaining the drainage path. At the beginning, water vapor generated from the evaporating dish 8 in the heating chamber 1 is condensed to form residual water F in the heating chamber 1 and dew condensation on the evaporating dish 8. The drainage guide ribs provided on the upper surface of the evaporating dish 8 as residual water, and the dewed water flowing out to the ceramic dish cradle according to FIG. 3 are guided to the drainage groove 18 of the ceramic dish cradle, FIG. Then, the condensed water drained from the drain hole 19 is dropped onto the heater reflector 3, drained from the hole between the door plate 6 and the heater reflector 3 to the water tray 5, and stored in the water tray 5. Drainage treatment and easy drainage treatment by storing drainage in a detachable water receiving tray

  As described above, according to the high-frequency heating device according to the present invention, the residual water condensed in the heating chamber can be efficiently drained to the outside of the main body of the device without sacrificing the quality of the product and structurally. It can be achieved at low cost because it can be accomplished by modifying some of the current components without requiring special equipment.

Sectional drawing of the high frequency heating apparatus in Embodiment 1 of this invention Perspective view of the high-frequency heating device Enlarged perspective view of the high-frequency heating device Enlarged perspective view of the high-frequency heating device Expanded cross-sectional view of the same high-frequency heating device Expanded cross-sectional view of the same high-frequency heating device Enlarged perspective view of the high-frequency heating device Sectional view of a conventional high-frequency heating device

Explanation of symbols

1 Heating chamber 2 Heater (electric heating means)
3 Reflector for heater 3a Second drain hole 4 Partition plate for water receiving 5 Water receiving tray 6 Door

7 Dish pan 7a Drain groove 7b Drain hole 8 Evaporating dish

Claims (4)

A heating chamber for storing an object to be heated; a door for opening and closing the heating chamber; a high-frequency generating unit for heating the object to be heated by high-frequency radio waves; an electric heating unit for heating the object to be heated by a heater; A high-frequency heating apparatus including steam generating means for heating an object with steam, the steam generating means being provided in the heating chamber, and from the steam generating means to the door side of the heating chamber opened and closed by the door A high-frequency heating device provided with a drainage groove and provided with a water receiving tray corresponding to the terminal drainage hole of the drainage groove. 2. The high frequency heating apparatus according to claim 1, wherein a dish receiving table is provided on the inner bottom surface of the heating cabinet, and a drainage groove is provided in a portion corresponding to at least one of the inner walls of the heating chamber. An electric heating means is provided at the lower part of the tray tray of the heating cabinet, and a reflecting plate for reflecting the radiant heat of the electric heating means into the heating cabinet is provided, and the remaining water in the heating cabinet is guided to the water receiving tray through this reflecting plate. The high frequency heating apparatus according to claim 2. A drainage hole is provided at the end of the drainage groove of the tray support, and the drainage hole is made to face the reflecting plate, and a second drainage hole facing the water receiving tray is provided at the door side portion of the reflecting plate corresponding to the drainage hole. Item 4. The high frequency heating apparatus according to Item 3.