JP2011220590A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooker which excellently performs steam cooking by a microwave.SOLUTION: The cooker includes a microwave supply parts 5, 6, 7 supplying a microwave to a heating chamber 3 in which a cooked object W1 is housed and a metal intercepting member 20 which is installed in the heating chamber 3 and in which small holes 23 through which microwave does not pass are opened, a microwave is supplied to below the intercepting member 20 and a microwave is intercepted by the intercepting member 20. The cooked object W1 is arranged on the intercepting member 20 during steaming cooking, and a water storage container W2 containing water is arranged below the intercepting member 20. When the microwave is supplied to the lower part of the intercepting member 20, water in the water storage container W2 is evaporated, and steam is supplied to above the intercepting member 20 through the small holes 23.

Description

  The present invention relates to a cooking device that can perform steaming cooking using microwaves.

  A conventional cooking device is disclosed in Patent Document 1. This heating cooker includes a magnetron that generates microwaves, and supplies the microwaves through a waveguide into a heating chamber that houses the food. The cooked food is heated and cooked by placing the cooked food on a square plate placed in the heating chamber and driving the magnetron.

  The square dish has a peripheral wall and is formed so that water can be stored inside. Place the food on the table placed on the square plate, feed the square plate with water, and cover it. And if a magnetron is driven, the water in a square dish will evaporate and it can cook cooking.

Japanese Unexamined Patent Publication No. 2004-198013 (pages 4-6, FIG. 2)

  However, according to the above-described conventional cooking device, there is a problem that the cooked food is heated by microwaves when performing steaming cooking, and good steaming cooking cannot be performed.

  An object of this invention is to provide the heating cooker which can perform steaming cooking favorably with a microwave.

  In order to achieve the above object, the present invention provides a microwave supply unit that supplies microwaves to a heating chamber in which a food item is stored, and a metal that is installed in the heating chamber by opening a small hole through which microwaves do not pass. A shielding member made of metal, and a microwave is supplied below the shielding member, and the microwave is shielded by the shielding member.

  According to this configuration, the cooked food is disposed above the blocking member, and the water storage container containing water is disposed below the blocking member. Microwaves are supplied below the blocking member by the microwave supply unit, and water in the water storage container evaporates to generate steam. At this time, since the blocking member is made of metal and the small holes do not pass microwaves, the supply of microwaves above the blocking member is blocked. Steam generated below the blocking member is supplied to the upper portion of the blocking member through a small hole, and steamed cooking of the food is performed.

  Moreover, the present invention is characterized in that, in the cooking device configured as described above, an insulating member is provided on the periphery of the blocking member. According to this configuration, the insulating member prevents discharge between the metal blocking member and the wall surface of the heating chamber.

  Moreover, the present invention is characterized in that, in the heating cooker configured as described above, the blocking member is formed by a flat plate bridged between both side walls of the heating chamber. According to this configuration, the blocking member is bridged in the heating chamber, and cooking can be performed by placing the food on the blocking member.

  In the cooking device having the above-described configuration, the microwave supply unit may include a waveguide unit that guides microwaves adjacent to the lower portion of the heating chamber, and the blocking member may be formed from the waveguide unit. Further, it is characterized in that it is installed on the bottom surface of the heating chamber by a leg portion covering a wide range. According to this configuration, the microwave is supplied to the heating chamber through the waveguide portion, and the blocking member having the leg portion is installed on the bottom surface of the heating chamber. Since the leg portion covers a wider area than the waveguide portion, the supply of microwaves above the blocking member is blocked.

  Further, the present invention is characterized in that, in the cooking device having the above configuration, the diameter of the small hole is 3 mm or less.

  According to the present invention, the microwave is supplied to the lower side of the metal blocking member having a small hole and the microwave is blocked by the blocking member, so that the cooked food is disposed above the blocking member and below the blocking member. By arranging the water storage container containing water, the food is not heated by the microwave but is heated by the steam generated from the water storage container. Therefore, good steaming cooking can be performed by the microwave.

The schematic front view which shows the heating cooker of 1st Embodiment of this invention. The top view which shows the interruption | blocking member of the heating cooker of 1st Embodiment of this invention. Front sectional drawing which shows the interruption | blocking member of the heating cooker of 1st Embodiment of this invention. The schematic front view which shows the heating cooker of 2nd Embodiment of this invention. Front sectional drawing which shows the interruption | blocking member of the heating cooker of 2nd Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view showing a heating cooker according to the first embodiment. The heating cooker 1 includes a heating chamber casing 2 made of metal such as stainless steel formed in a box shape with an open front. A magnetron 5 that generates microwaves is disposed on the side of the heating chamber housing 2. A waveguide 6 connected to the magnetron 5 is led out on the bottom surface of the heating chamber casing 2.

  At the bottom of the heating chamber 2, a ceramic bottom plate 4 that partitions the top and bottom is arranged. In the heating chamber housing 2, a heating chamber 3 is formed above the bottom plate 4 to store the food W <b> 1, and a waveguide 7 is formed below the bottom plate 4. The bottom plate 4 forms the bottom surface of the heating chamber 3. The microwave generated by the magnetron 5 is guided through the waveguide 6 and the waveguide section 7 and supplied to the heating chamber 3. Therefore, the magnetron 5, the waveguide 6, and the waveguide unit 7 constitute a microwave supply unit that supplies microwaves to the heating chamber 3.

  A rotating antenna 8 for making the microwave uniform is disposed in the waveguide 7. Heaters 9 and 10 are disposed on the bottom of the waveguide 7 and the top surface of the heating chamber 3, respectively. The heaters 9 and 10 are driven when the food W1 is cooked by radiant heat.

  An installation part 3a is projected from the side wall of the heating chamber 3, and a blocking member 20 is bridged between the installation parts 3a. 2 and 3 show a top view and a front sectional view of the blocking member 20. The blocking member 20 has a base material 21 and an insulating member 22. The base material 21 is formed by engraving a flat metal surface to form a tray on which the food W1 (see FIG. 1) is placed. A plurality of small holes 23 are opened in the peripheral portion of the base material 21. The small holes 23 are formed in a size that does not allow microwaves to pass through punching or the like, and are formed in a circular shape having a diameter of 3 mm or less, for example. The insulating member 22 is formed in a U-shaped cross section using silicon rubber, ceramic, or the like, and is fitted on the periphery of the substrate 21.

  In the cooking device 1 configured as described above, the cooked product W1 is placed on the blocking member 20 when steam cooking is performed with steam, and a water storage container W2 containing water is disposed below the blocking member 20. Microwaves are supplied to the lower side of the blocking member 20 through the waveguide 6 and the waveguide 7 by driving the magnetron 5. Thereby, the water in the water storage container W2 evaporates and steam is generated.

  At this time, since the blocking member 20 is made of metal and the small holes 23 do not pass microwaves, the supply of microwaves above the blocking member 20 is blocked. The steam generated below the blocking member 20 is supplied to the upper portion of the blocking member 20 through the small holes 23, and steamed cooking of the food W1 is performed.

  According to the present embodiment, the microwave is supplied to the lower side of the metal blocking member 20 having the small holes 23 and the microwave is blocked by the blocking member 20, so that the food W <b> 1 is disposed above the blocking member 20. By arranging the water storage container W2 containing water below the blocking member 20, the food W1 is heated by the steam generated from the water storage container W2 without being heated by the microwave. Therefore, good steaming cooking can be performed by the microwave. In addition, since the microwave is supplied to the narrow space below the blocking member 20 of the heating chamber 3 to heat the water storage container W2, the heating efficiency is improved and power saving during steam cooking can be achieved.

  Further, since the insulating member 22 is provided on the periphery of the blocking member 20, the insulating member 22 can prevent discharge between the metallic blocking member 20 and the wall surface of the heating chamber 3. Note that a gap through which microwaves do not pass may be provided between the blocking member 20 and the heating chamber housing 2, and the insulating member 22 may be omitted.

  Moreover, since the blocking member 20 is formed by a flat plate bridged between both side walls of the heating chamber 3, it is not necessary to separately provide a tray on which the food W1 is placed, and the convenience of the heating cooker 1 is improved. Can do.

  Next, FIG. 4 is a side sectional view showing a heating cooker according to the second embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are given the same reference numerals. This embodiment is different from the first embodiment in the configuration of the waveguide section 7 and the blocking member. Other parts are the same as those in the first embodiment.

  The waveguide 7 at the lower part of the heating chamber 2 is surrounded by an annular peripheral wall 7a in a range narrower than the outer shape of the bottom plate 4. A blocking member 30 is installed on the bottom plate 4. FIG. 5 shows a front sectional view of the blocking member 30. As in the first embodiment, the blocking member 30 includes a base material 31 and an insulating member 32. The base material 31 is formed by engraving the surface of a metal having a U-shaped cross-section with the peripheral portion bent downward. An annular leg 30 a is formed by bending the peripheral portion of the base material 31. A plurality of small holes 33 similar to the small holes 23 (see FIG. 2) of the first embodiment are opened in the peripheral portion of the upper surface of the base material 31.

  The insulating member 32 is formed in a U-shaped cross section using silicon rubber, ceramic, or the like, and is fitted on the lower end of the leg portion 30 a that is the periphery of the base material 31. The leg portion 30 a covers a wider area than the waveguide portion 7, and the microwave guided through the waveguide portion 7 is blocked from supplying the microwave above the blocking member 30. Further, the insulating member 32 prevents discharge between the metal blocking member 30 and the wall surface of the heating chamber 3.

  Note that the tray 11 is bridged between the installation portions 3 a provided on both side walls of the heating chamber 3. The tray 11 is disposed above the blocking member 30, and a gap (not shown) through which steam flows is formed between the tray 11 and the heating chamber housing 2.

  In the cooking device 1 having the above-described configuration, the cooked product W1 is placed on the tray 11 when steam cooking is performed, and a water storage container W2 containing water is disposed below the blocking member 30. Microwaves are supplied to the lower side of the blocking member 30 through the waveguide 6 and the waveguide 7 by driving the magnetron 5. Thereby, the water in the water storage container W2 evaporates and steam is generated. The steam generated below the blocking member 30 is supplied to the upper side of the blocking member 30 through the small holes 33, and steamed cooking of the food W1 is performed. Note that the food W1 may be placed on the upper surface of the blocking member 30.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Further, since the blocking member 30 is installed on the bottom surface of the heating chamber 3 by the leg portion 30a covering a wider area than the waveguide section 7, it is possible to easily block the microwave.

  In addition, since the insulating member 32 is provided on the periphery of the blocking member 30, the insulating member 32 can prevent discharge between the metallic blocking member 30 and the wall surface of the heating chamber 3. In addition, when the clearance gap between the leg part 30a of the interruption | blocking member 30 and the side wall of the heating chamber 3 is large, you may omit the insulation member 32. FIG.

  According to this invention, it can utilize for the heating cooker which can perform steaming cooking by a microwave.

DESCRIPTION OF SYMBOLS 1 Heating cooker 2 Heating chamber housing | casing 3 Heating chamber 4 Bottom plate 5 Magnetron 6 Waveguide 7 Waveguide part 8 Antenna 9, 10 Heater 11 Tray 20, 30 Blocking member 21, 31 Base material 22, 32 Insulating member 23, 33 Small hole

Claims (5)

  A microwave supply unit that supplies microwaves to a heating chamber in which the food is stored; and a metal blocking member that is installed in the heating chamber by opening a small hole through which the microwave does not pass, the blocking member A heating cooker characterized in that a microwave is supplied below and the microwave is blocked by the blocking member.   The cooking device according to claim 1, wherein an insulating member is provided on a peripheral edge of the blocking member.   The cooking device according to claim 1 or 2, wherein the blocking member is formed by a flat plate bridged between both side walls of the heating chamber.   The microwave supply unit includes a waveguide unit that guides microwaves adjacent to the lower side of the heating chamber, and the blocking member is a bottom surface of the heating chamber by a leg that covers a wider area than the waveguide unit. The cooking device according to claim 1, wherein the cooking device is installed on the top.   The cooking device according to any one of claims 1 to 4, wherein a diameter of the small hole is 3 mm or less.

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