JP2007093091A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker wherein proper treatment is given to dew condensation water of water vapor entering into the space of a door. <P>SOLUTION: The door has a space into which water vapor easily enters into the lower part. In the lower part of a body frame 13 of the door, a cutout 25 is formed for a hinge or a wire to be communicated with the space. The body frame 13 has a rib 26 and a grooved portion 27 on/in the lower upper face at both right and left sides of the cutout 25. The water vapor entering into the space forms dew condensation into water which ranges through the body frame 13 or a frame portion to the lower upper face of the body frame 13. The dew condensation water is guided to a water receiving portion by the grooved portion and prevented from ranging to the cutout 25 by the rib 26. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cooking device that accommodates an object to be heated in a heating chamber and cooks it.

In a cooking device that cooks food by storing food in a heating chamber such as a microwave oven or an electric oven, steam generated during cooking is not discharged to the outside until the door is opened. Therefore, most of the steam adheres to the inner wall and door of the heating chamber and forms dew before the cooking ends. In particular, since the condensed water adhering to the door is dropped on the installation surface of the cooking device through the door, it is necessary for the user to wipe off the condensed water dropped on the installation surface every time cooking is completed.
In view of this, for example, a cooking device is provided in which a recessed portion for receiving condensed water is provided in the leg cover at the lower part of the door so that the condensed water can be easily treated (see, for example, Patent Document 1).
JP 2004-347250 A

By the way, the door of a heating cooker is normally comprised from the hollow door formed by combining an inner frame and an outer frame. A glass plate is held at the center of each of the inner frame and the outer frame, and the inside of the heating chamber can be observed through the glass plate.
In this case, many of the joints between the outer frame and the inner frame and the boundary part between the outer frame and the inner frame and the glass plate are sealed with packing, which prevents water from entering the door. , Due to the structure of the door, there are some parts with low sealing performance. For this reason, there existed a problem that the vapor | steam which generate | occur | produced during heat-cooking penetrate | invades in the inside of a door, it dew condensation, and it dripped at an installation surface.

  Then, the objective of this invention is providing the heating cooker which can process appropriately the dew condensation water of the vapor | steam which entered the space in a door.

  The present invention includes a cooker body provided with a heating chamber having an opening on the front surface, a door provided on the front surface of the cooker body for opening and closing the opening, and a water receiving portion provided on a lower portion of the rear surface of the door. The door has a space in which steam can enter from the outside at least in a lower portion thereof, and water generated by condensation of the steam that has entered the space is formed in the lower portion of the space. A guide member for guiding the water receiving portion is provided.

  According to the present invention, steam generated during cooking is intruded into the space in the door, and water generated by condensation is guided to the water receiving portion by the guide member. Therefore, it is possible to prevent dew condensation water from accumulating in the door space, or water accumulated in the door space from leaking out and getting wet around the cooking device.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
1 to 8 show a first embodiment of the present invention. The heating cooker according to the first embodiment is configured to be able to perform microwave cooking and oven cooking using heater heating, and has a rectangular box shape having a heating chamber 1 as shown in FIGS. And a door 3 attached to the front surface of the cooker body 2 for opening and closing the front opening of the heating chamber 1. The cooking chamber 1 stores food to be heated.

The cooker body 2 is supported by a plurality of legs (not shown) attached to the lower surface thereof. A leg cover 4 is attached to the lower front portion of the cooker body 2 so as to conceal the legs and the lower part of the cooker body 2 to enhance the appearance and design effect from the front (front). Yes.
As shown in FIG. 3, a bowl-shaped water receiving portion 5 extending in the left-right direction of the leg cover 4 is integrally formed at the upper end of the leg cover 4. The water receiver 5 is located at the front of the cooker main body 2 and the lower part of the rear surface of the door 3, and receives water generated by condensation of steam generated from food during cooking. The water receiving portion 5 has a width dimension in the front-rear direction as small as possible so as not to impair the design effect of the leg cover 4.

  On the other hand, as shown in FIG. 2, a detachable water storage container 6 is disposed on the front right side of the lower portion of the cooker body 2. The water storage container 6 is attached and detached with the leg cover 4 removed. The water receiving part 5 has a drainage hole (not shown), and the drainage hole communicates with the water storage container 6 through a water conduit (not shown). The bottom surface of the water receiving portion 5 is inclined downward toward the drainage hole, and the dew condensation water received by the water receiving portion 5 flows into the water storage container 6 from the drainage hole through the water conduit and is stored.

Moreover, the said door 3 has the window part 7 for visually recognizing the inside of the heating chamber 1 from the outside. A grip 8 is provided at the upper part of the front surface of the door 3, and an operation panel 9 is provided at the lower part. The operation panel 9 is provided with a knob and a key for setting cooking conditions such as a cooking menu and cooking time, and a display unit for displaying a cooking state and setting contents.
The door 3 and the cooker body 2 are connected by a pair of hinges 10 attached between the left and right portions of the lower rear surface of the door 3 and the left and right portions of the lower front surface of the cooker body 2. With the above configuration, the door 3 can be rotated in the vertical direction to open and close the front opening of the heating chamber 1.

  FIG. 3 is an enlarged vertical side view of the lower peripheral portion of the door 3. As shown in FIG. 3, the door 3 includes a door main body 11 and a shielding plate 12 fixed to the rear portion of the door main body 11 and has a substantially hollow shape as a whole. The door main body 11 has a rectangular cylindrical main body frame 13 and a glass plate 14 mounted on the front surface of the main body frame 13 so as to close the front opening of the main body frame 13. A control unit or the like (not shown) of the operation panel 8 is accommodated in the lower part of the main body frame 13 via a support frame 15. The support frame 15 is fixed to the main body frame 13 with screws 16, and a packing 17 is interposed between the support frame 15 and the main body frame 13. This prevents vapor from entering the space between the main body frame 13 and the support frame 15. Further, a protrusion 18 protruding rearward is provided on the lower surface of the rear end portion of the main body frame 13.

  On the other hand, the shielding plate 12 is fixed to the rear end portion of the main body frame 13 and attached to the frame portion 20 that holds the metal plate 19 between the door main body 11 (support frame 15) and the rear surface of the metal plate 19. The glass plate 21 is comprised. The central portion of the metal plate 19 bulges forward, and a large number of small holes 22 are formed in the bulged portion. The glass plate 21 is fixed to the bulging portion and closes the small hole 22. The peripheral edge of the glass plate 21 is fixed to the metal plate 19 with an adhesive 23. The adhesive 23 functions as a packing, so that steam does not enter between the glass plate 21 and the metal plate 19. Further, a packing 24 is interposed between the peripheral edge portion of the metal plate 19 and the door main body 11 so that steam does not enter most of the inside of the door 3.

  As described above, the plurality of packings 17, 24, the adhesive 23, and the like prevent vapor from entering the portion of the door 3 except the space S indicated by the broken line in FIG. 3. In other words, the vapor enters the space S. Therefore, in the present embodiment, a guide member that guides the water generated by condensation of the vapor that has entered the space to the water receiving portion 5 is provided on the lower surface in the door 3.

  Hereinafter, the guide member will be described with reference to FIGS. 4 and 5. FIG. 4 is a schematic perspective view showing the main body frame 13 of the door main body 11 as viewed from the rear, and FIG. 5 is an enlarged view of a part of the lower portion of the main body frame 13. As shown in FIGS. 4 and 5, three notches 25 are formed in the lower portion of the main body frame 13. Of these, the notches 25 located on both the left and right sides are for attaching the hinge 10, and the remaining notches 25 are notches for wiring of the control unit.

And the rib 26 and the groove part 27 which are each extended in the front-back direction are provided in the left-right both sides of all the notches 25 among the lower upper surfaces of the main body frame 13, respectively. Both the rib 26 and the groove 27 are shown only in FIG. The rib 26 is provided immediately next to the notch 25 and is configured to extend to the full width in the front-rear direction of the main body frame 13. On the other hand, the groove portion 27 extends from a portion slightly rearward of the front end portion of the lower upper surface of the main body frame 13 to the rear end portion, and the bottom surface thereof is an inclined surface inclined downward toward the rear. The rib 26 and the groove 27 function as a guide member of the present invention.
Although not specifically shown, the cooking device according to the present embodiment includes a magnetron that generates microwaves, a heater for oven cooking, and the like.

Next, the operation and effect of the above configuration will be described with reference to FIGS.
When cooking is performed and the food in the heating chamber 1 is heated, steam is generated from the food. Steam generated from food fills the heating chamber 1 and adheres to the inner wall of the heating chamber 1 and the rear surface of the door 3 or enters the space S in the door 3.
Water generated by condensation of the vapor adhering to the inner wall of the heating chamber 1 accumulates on the bottom surface of the heating chamber 1 along the inner wall. A portion of the condensed water accumulated on the bottom surface drops down along the lower front surface of the cooker body 2 and is received by the water receiver 5. Further, the condensed water adhering to the rear surface of the door 3 travels along the rear surface of the door 3 to reach the lower portion and drops onto the water receiving portion 5. And the dew condensation water received by the water receiving part 5 flows into the water storage container 6, and is stored.

  On the other hand, the vapor that has entered the space S adheres to the metal plate 19, the frame portion 20, the main body frame 13, the support frame 15, etc., and is condensed to become water. Condensed water generated in the space S reaches the lower upper surface of the main body frame 13, drops downward from the joint portion between the main body frame 13 and the frame portion 20, and is received by the water receiving portion 5. Further, the dew condensation water in the vicinity of the groove 27 among the dew condensation water reaching the lower upper surface of the main body frame 13 is directed toward the rear end of the main body frame 13 along the bottom surface of the groove 27 as shown in FIG. Drip into 5. Therefore, condensed water does not accumulate near the notch 25. Moreover, it is possible to prevent the condensed water on the lower upper surface of the main body frame 13 from entering the notch 25 as much as possible by the ribs 26.

  By the way, FIG. 7 has shown the mode that the dew condensation water of the vapor | steam which permeated in the door is discharged | emitted in the conventional heating cooker in which the rib and groove part are not provided in the vicinity of a notch. As shown in FIG. 7, in the conventional cooking device, a part of the condensed water that reaches the lower upper surface of the main body frame 13 drops downward from the notch 25. The notch 25 extends from the rear end of the lower part of the main body frame 13 to the vicinity of the front end, and in order to reliably receive the condensed water in the space S, the front end of the water receiving part 5 is close to the lower part of the front end of the notch 25. It is necessary to enlarge the width dimension in the front-rear direction of the water receiving portion 5 so as to be positioned.

  On the other hand, in this embodiment, since the dew condensation water on the lower upper surface of the main body frame 13 is not dripped from the notch 25 by the rib 26 and the groove portion 27, the width dimension in the front-rear direction of the water receiving portion 5 is increased. In addition, the condensed water generated in the space S in the door 3 can be reliably received.

  Further, in the present embodiment, the ridge portion 18 is provided on the lower surface of the rear end portion of the main body frame 13. For this reason, when the door 3 is opened, the dew condensation water toward the lower rear surface of the door 3 is received by the ridges 18 (state shown in FIG. 8) and is prevented from going around the lower surface of the door 3. The condensed water received by the ridges 18 is held by the ridges 18 until the door 3 is closed, and drops onto the water receiver 5 after the door 3 is closed.

On the other hand, as shown in FIG. 9, when the ridge portion 18 is not provided, the dew condensation water directed toward the lower rear surface of the door 3 when the door 3 is opened turns around the lower surface of the door 3 and then the door. 3 is dropped from the lower front surface. Since the water receiving portion 5 does not exist below the front lower portion of the door 3, the dew condensation dripped from the lower front portion of the door 3 wets the installation surface of the heating cooker.
Therefore, the provision of the ridges 18 can reliably receive the condensed water of steam generated during cooking without increasing the width dimension of the water receiver 5 in the front-rear direction. It can prevent getting wet with condensed water.

  FIG. 10 shows a second embodiment of the present invention, and different points from the first embodiment will be described. In addition, the same code | symbol is attached | subjected to the same part as 1st Embodiment. In the second embodiment, one guide portion 31 is provided in the vicinity of the hinge notch 25 in place of the pair of ribs 26. The guide portion 31 is bridged between the side portion of the main body frame 13 and the lower upper surface of the main body frame 13 so as to cross over the notch 25. Specifically, as shown in FIG. 10, the hinge notch 25 located in the right part of the door 3 (for example, FIG. 10 is a view of the main body frame 13 of the door 3 from the rear, and the left and right are reversed. The guide portion 31 is bridged between the lower upper surface of the main body frame 13 on the left side of the notch 25 and the right side portion of the main body frame 13.

  The guide portion 31 includes a vertical surface portion 31a that rises vertically from the lower upper surface of the main body frame 13, a horizontal surface portion 31b that extends in the horizontal direction from the side portion of the main body frame 13, an inclined surface portion 31c that connects the vertical surface portion 31a and the horizontal surface portion 31b, It is comprised from the standing wall part 31d which stands | starts up perpendicularly from the rear-end part of the horizontal surface part 31b and the inclined surface part 31c.

  Further, in the present embodiment, instead of the pair of groove portions 27, one groove portion 32 is provided on the lower upper surface of the main body frame 13 in the vicinity of the hinge notch 25. The bottom surface of the groove portion 32 is an inclined surface like the groove portion 27. The groove portion 32 is provided on the lower upper surface of the main body frame 13 so as to sandwich the guide portion 31 between the groove portion 32 and the notch 25. Specifically, the hinge notch 25 located at the right part of the door 3 is formed on the lower upper surface of the main body frame 13 on the left side of the notch 25 and on the left side of the guide part 31. .

In the present embodiment, a guide member is constituted by the guide portion 31 and the groove portion 32.
According to the above configuration, the dew condensation water that reaches the vicinity of the notch 25 through the inner surface of the main body frame 13 is received by the horizontal surface portion 31b and the inclined surface portion 31c of the guide portion 31, and is transmitted through the horizontal surface portion 31b, the inclined surface portion 31c, and the vertical surface portion 31a. To the groove 32. Thereafter, the water drops are dropped onto the water receiving portion 5 toward the rear end of the main body frame 13 along the bottom surface of the groove portion 32.

  The standing wall portion 31d is positioned slightly forward of the rear end of the main body frame 13, but the frame portion 20 of the shielding plate 12 and the like are located in the main body frame 13 and at the rear portion of the standing wall portion 31d. Is arranged (see FIG. 3). For this reason, the dew condensation water does not flow into the notch 25 from behind the standing wall part 31d, and the dew condensation water on the horizontal surface part 31b and the inclined surface part 31c is also prevented from moving toward the notch 25 by the standing wall part 31d. Therefore, it is possible to reliably prevent the condensed water from dripping from the notch 25.

Further, the present invention is not limited to the above-described embodiment, and for example, the following modifications are possible.
As shown in FIG. 11, a lid 41 may be provided on the upper surface of the water storage container 6. By providing the lid 41, it is possible to prevent the water in the water storage container 6 from being spilled when the condensed water accumulated in the water storage container 6 is discarded.

The guide member may be composed only of the rib 26 and the guide portion 31. It is also possible to configure the guide member only from the groove portions 27 and 32.
Guide portions 31 may be provided in place of the ribs 26 in the wiring notches 25 near the center in the left-right direction of the main body frame 13. In this case, an arch-shaped guide portion 31 is preferably provided on the lower upper surface of the main body frame 13 so as to straddle the notch 25.

The present invention can also be applied to a cooking device that includes a steam supply device that supplies steam into a heating chamber during cooking and is capable of so-called steam cooking. In such a heating cooker, since a large amount of steam enters the space in the door during steam heating cooking, the configuration in which the guide portion is provided and the condensed water in the space is actively guided to the water receiving portion is an effective configuration. It is.
The present invention can be applied not only to an electric cooker but also to a gas cooker.

The perspective view of the microwave oven which shows the 1st Embodiment of this invention and shows the state which opened the door Front view of microwave oven Longitudinal side view of the lower part of the door A perspective view showing the body frame of the door body as seen from the rear. The perspective view which expands and shows the notch part periphery of the main body frame of a door main body The figure for explaining a mode that dew condensation water of the vapor which entered the door is discharged through the groove FIG. 6 equivalent diagram in a conventional microwave oven The figure for demonstrating a state where the dew condensation water adhering to the rear surface of a door is received by a protruding part FIG. 8 equivalent view of a conventional microwave oven The perspective view which shows the 2nd Embodiment of this invention and expands and shows a part of main frame of a door The perspective view which shows the modification of this invention and takes out a water storage container from the lower part of a cooker main body, and shows it

Explanation of symbols

  In the drawings, 1 is a heating chamber, 2 is a cooker body, 3 is a door, 5 is a water receiving portion, 18 is a protruding strip portion, 25 is a notch, 26 is a rib (guide member), and 27 and 32 are groove portions (guide members). ) And 31 are guide portions (guide members), and S is a space.

Claims (5)

A cooker body with a heating chamber having an opening on the front surface;
A door provided on the front surface of the cooker body for opening and closing the opening;
In the heating cooker provided with a water receiving portion provided in the lower part of the rear surface of the door,
The door has a space in which steam can enter at least at a lower portion thereof, and a guide member that guides water generated by condensation of the steam that has entered the space to the water receiving portion is provided in the lower portion of the space. A cooking device characterized by being cooked. The door is connected to the cooker body so as to be rotatable in the vertical direction,
The lower portion of the door has a notch communicating with the space, and the guide member is formed of a pair of grooves provided on the left and right sides of the notch in the lower portion of the space and extending in the front-rear direction. The cooking device according to claim 1. The door is connected to the cooker body so as to be rotatable in the vertical direction,
The lower portion of the door has a notch communicating with the space, and the guide member includes a pair of ribs provided on both left and right sides of the notch in the lower portion of the space and extending in the front-rear direction. The cooking device according to claim 1. The door is connected to the cooker body so as to be rotatable in the vertical direction,
The cooking device according to claim 1, wherein the left and right portions of the lower portion of the door have a cutout communicating with the space, and the guide member is provided so as to straddle the cutout. The cooking device according to any one of claims 1 to 4, further comprising a ridge provided at a lower portion of the rear surface of the door and protruding rearward.

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