CN101261018A - Tray with grid for high frequency electromagnetic cooking - Google Patents

Abstract

The invention provides a grid tray for high-frequency electromagnetic wave cooking that can shorten the cooking time. The grid tray (50) for high frequency electromagnetic cooking of the present invention includes: a top (51a) in contact with the object M to be heated, and a bottom (51b) not in contact with the object M to be heated. Compared with the thickness (T1) of the electromagnetic wave absorption heating element (52) on the back side of the bottom (51b) that is not in contact with the heated object M, the electromagnetic wave absorption heating element ( 52) the thickness (T2) is set relatively thick. Therefore, the top (51a) can be heated intensively, and the cooking time can be shortened.

Description

Tray with grid for high frequency electromagnetic cooking

technical field

The invention relates to a high-frequency electromagnetic wave cooking tray with a grid used when heating an object to be heated with high-frequency electromagnetic waves.

Background technique

As shown in Fig. 21, the existing high-frequency electromagnetic wave cooking tray 100 with a grid is composed of a high-frequency electromagnetic wave heating element 101 made of a mixture of resin material and ferrite and a tray 102 made of metal. The heating element 101 is adhered to the tray 102 . Concave-convex 103 is provided in the tray 102, and the area of the raised part 103b is larger than that of the recessed part 103a, thereby increasing the contact area between the tray and the object to be heated. Therefore, high-frequency electromagnetic waves can be used to heat the inside of the object to be heated, and the surface of the heated object will be covered with charred marks that are common on grilled food (for details, please refer to Japanese Patent Laid-Open Publication No. 2006-52932).

But, in the band grid tray 100 that is used for high-frequency electromagnetic wave cooking described in the above references, the recessed part 103a is mainly used to make the oily water that seeps out from the inside of the heated objects such as meat and fish flow into it, and is connected with the heated objects. The heated objects do not come into contact. Because the thickness of the high-frequency electromagnetic wave heating element 101 is uniform, the concave portion 103a also generates heat uniformly, but the concave portion 103a does not come into contact with the food, so there are problems of low heating efficiency and long cooking time.

Contents of the invention

The present invention aims to solve the above-mentioned problems mentioned in the prior art, and provides a high-frequency electromagnetic wave cooking tray with a grid that can shorten the cooking time.

The tray with grid for high-frequency electromagnetic wave cooking of the present invention comprises: a tray body with a top that contacts the object to be heated and a bottom that does not contact the object to be heated, and the top that is arranged on the back of the tray body The electromagnetic wave absorbing heating element on the area corresponding to the bottom. The thickness of the region corresponding to the bottom of the electromagnetic wave absorbing heating element is thinner than that of the region corresponding to the top.

After adopting such a structure, in the high-frequency electromagnetic wave cooking belt grid tray with a top that contacts the heated object and a bottom that does not contact the heated object, due to the thickness ratio of the electromagnetic wave absorbing heating element that contacts the back of the top and generates heat The thickness of the electromagnetic wave absorbing heating element that comes into contact with the back of the bottom and generates heat is thick, so the top can be heated intensively and the cooking time can be shortened.

In addition, the tray body of the tray with grids for high-frequency electromagnetic wave cooking in the present invention is preferably made of aluminum. After adopting such a structure, since the tray body is made of aluminum with high thermal conductivity, the heating efficiency can be improved and the cooking time can be shortened.

In addition, in the tray with grills for high-frequency electromagnetic wave cooking in the present invention, the area on the back of the tray body that is in contact with the electromagnetic wave absorbing and heating element is the raw material surface.

In this way, because there is no coating on the tray body in contact with the electromagnetic wave absorbing heating element, the thermal conductivity can be improved, and the cooking time can be shortened.

The technical effects produced by the present invention are as follows. Since the high-frequency electromagnetic wave cooking tray of the present invention is provided with concavo-convex (top and bottom), and the thickness of the electromagnetic wave absorbing heating element arranged on the back surface of the top that contacts the object to be heated is smaller than that of the bottom that does not contact the object to be heated. The thickness of the electromagnetic wave absorbing heating element arranged on the back is thick, so the effect of concentrating heating on the top and shortening the cooking time can be achieved.

Description of drawings

Fig. 1 is a perspective view of a heating cooker in one embodiment of the present invention,

Fig. 2 is a perspective view showing the internal structure of the heating cooker,

Fig. 3 is a sectional view showing the internal structure of the heating cooker,

Fig. 4 is a sectional view showing the mounting structure of the infrared sensor,

Fig. 5 is the front view of the infrared sensor seen from the V direction in Fig. 4,

Fig. 6 is a perspective view showing one form of a high-frequency radiation device,

Fig. 7 is an enlarged perspective view of the reflector,

Fig. 8 is a perspective view showing another form of the high-frequency radiation device,

Figure 9 is an exploded perspective view of the machine door seen from the front,

Figure 10 is an exploded perspective view of the door handle,

Figure 11 is an exploded perspective view of the machine door seen from the rear,

Figure 12 (A) and (B) are the sectional views of the lower part of the machine door,

Fig. 13 is a perspective view of the inner trim panel seen from the inner side,

Fig. 14 is a perspective view showing a cooling device installed in the machine body,

Fig. 15 is a perspective view of the air duct arranged at the front of the body,

Fig. 16 is a sectional view showing the flow direction of the cold air in the air supply part and the air duct,

Figure 17 (A) is a perspective view of a tray with a grid, (B) is a cross-sectional view of a tray with a grid,

Figure 18(A) is a perspective view of the water tank, (B) is an exploded perspective view of the water tank, and (C) is a perspective view seen from the C direction in Figure 18(A),

Figure 19 is a perspective view of the body when the upper water tank is installed on the front bottom,

Figure 20 is a perspective view of the water tank and the water receiving tray,

Fig. 21 is a cross-sectional view of a tray with grills in a conventional heating cooker.

In the above drawings, 50 is a grid tray, 51a is the top, 51b is the bottom, 51 is the tray body, 52 is the heating element for absorbing electromagnetic waves, T1 is the thickness of the area corresponding to the bottom, and T2 is the thickness of the area corresponding to the top. The thickness of the corresponding area, M is the object to be heated.

Detailed ways

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 3, the heating and conditioning device 10 of the present invention is a heating and conditioning device with a steam generating device, which has a rectangular box-shaped body 12 with an opening on the front surface, and a The machine door 20 of the opening part on the body 12. The inside of the body 12 is provided with a heating chamber 11 for heating objects M to be loaded into. As shown in Figure 2, the heating chamber 11 is provided with: a circulating fan 13 for stirring the air in the heating chamber 11 and circulating the air in the heating chamber 11; a convection heater for heating the circulating air in the heating chamber 11 14; and an infrared sensor 15 provided on the side wall 11c of the heating chamber 11 for detecting the temperature in the heating chamber 11. The center of the bottom plate 11a of the heating chamber 11 is provided with a recess 11b, and a high-frequency electromagnetic wave radiation device 30 for radiating high-frequency electromagnetic waves (microwaves) is provided in the recess 11b. Since the top of the recess 11b is usually covered with a cover plate, the high-frequency electromagnetic wave radiation device 30 is normally hidden. In addition, a steam generating device 40 is provided on the back side of the concave portion 11b on the bottom plate 11a.

As shown in Figure 3, the heating chamber 11 is separated by the partition board 16 arranged on the inner side of the heating chamber 11, and a space 17 is formed between the partition board 16 and the rear wall 12a of the body 12, and the circulation fan 13 and the convection heater 14 are Set in this space 17 . The center of the partition plate 16 is provided with a plurality of suction ventilation holes 16a, and the edge part is provided with a plurality of exhaust ventilation holes 16b. Therefore, the circulation fan 13 sucks the air in the heating chamber 11 from the ventilation hole 16a used for air intake, is heated by the convection heater 14, and the air after heating is sent back in the heating chamber 11 through the ventilation hole 16b used for exhausting. In this way, the heating chamber 11 can be heated.

As shown in FIGS. 2 and 4 , a protruding portion 11 d protruding into the heating chamber 11 is provided on the upper portion of the right side wall 11 c of the heating chamber 11 , and an infrared sensor 15 is provided inside the protruding portion 11 d. In order to allow the test light from the infrared sensor 15 to shine into the heating chamber 11, a window 11e is cut out on the bottom surface of the bulging portion 11d. The infrared sensor 15 can realize shaking the head by means of the head shaking device 15a. As shown in Figure 5, the infrared sensor 15 is towards the heating chamber 11 (as shown by the solid line in Figure 5) through the window 11e during the cooking process. The dotted line in 5 indicates). In addition, as shown in FIG. 2, on the left and right side walls 11c of the heating chamber 11, there are a plurality of sections (3 sections in FIG. 2) with horizontal support protrusions 11f on the upper surface and horizontally in the front-to-back direction for supporting A tray with grills used in high-frequency electromagnetic wave cooking equipment.

In addition, as shown in FIG. 5, the infrared sensor 15 is provided at a position deviated from the center of the window 11e, and by swinging the infrared sensor 15, the lens can be completely deviated from the window 11e. In this way, when using steam S for cooking, etc., by making the lens of infrared sensor 15 deviate from window 11e when the temperature is not measured, it is possible to prevent the steam S in the heating chamber 11 from condensing on the surface of the lens, which will cause dew in the subsequent cooking operation. An abnormality in temperature detection or the like has occurred.

As shown in Fig. 2, Fig. 3 and Fig. 6, the high-frequency electromagnetic wave radiating device 30 includes: a magnetron 31 for generating high-frequency electromagnetic waves in the machine room below the bottom plate 11a of the heating chamber 11; High-frequency electromagnetic waves generated by the magnetron 31 are transmitted to the waveguides 31 a of the first rotating antenna 32 and the second rotating antenna 33 . In addition, a first rotating antenna 32 for radiating high-frequency electromagnetic waves from the magnetron 31 and a second rotating antenna having higher high-frequency electromagnetic wave radiation power than the first rotating antenna 32 are provided in the recess 11b on the bottom plate 11a. 33. An evaporating pan 41 of a steam generating device 40 is provided on the inner side of the recess 11b on the bottom plate 11a, and an evaporating pan heater 42 is provided below the evaporating pan 41 (as shown in FIG. 3 ). As shown in FIG. 6 , the second rotating antenna 33 with higher power is arranged on the side closer to the evaporating disk 41 , and the first rotating antenna 32 with lower power is arranged on the side away from the evaporating disk 41 . The first rotating antenna 32 and the second rotating antenna 33 are arranged in the left-right direction (that is, the left-right direction shown in FIG. 6 ) perpendicular to the depth direction of the heating chamber 11 .

In this way, since the first rotating antenna and the second rotating antenna are arranged in a direction perpendicular to the depth direction of the heating chamber 11, even if the heating chamber 11 has a laterally long shape, high-frequency electromagnetic waves can be uniformly radiated throughout. In the heating chamber 11, heating efficiency is improved. In addition, since the evaporating tray 41 is arranged next to the second rotating antenna 33 with high power, high-frequency electromagnetic waves can be used to make the water boil quickly, shortening the time for generating the steam S, thereby shortening the cooking time.

In addition, among the output powers of the rotating antennas 32 and 33, the larger the size of the antenna, the larger the power, and the larger the output power of the rotating shafts 32a and 33a, the longer the shaft length. In addition, reflectors 34 a and 34 b are respectively provided in the vicinity of the front (downward in FIG. 6 ) of the first rotating antenna 32 and the second rotating antenna 33 in the concave portion 11 b. The reflectors 34a and 34b are formed by cutting out a part of the recess 11b in FIG. 7 and lifting them up. However, other methods such as attaching the reflectors 34a and 34b by screws can also be used. After the upper reflectors 34a and 34b are set in front of the rotating antennas 32 and 33, the high-frequency electromagnetic waves that turn to the front of the heating chamber 11 after hitting the rotating antennas 32 and 33 will be reflected by the reflecting plates 34a and 34b, and become to the heating chamber 11. internal radiation. Therefore, heating efficiency can be improved and cooking time can be shortened.

In addition, the rotating antennas 32 and 33 can also be arranged as shown in FIG. The second rotating antenna 33 with higher power is installed. In this case, when only using an oven or only using a microwave oven for cooking without using steam, the second rotating antenna 33 with higher power can not be used to heat the evaporation tray 41, but can be effectively used for cooking. process, thereby shortening the cooking time. In addition, as shown in FIG. 6, reflectors 34a and 34b are respectively provided near the front (downward in FIG. 8) of the first rotating antenna 32 and the second rotating antenna 33 in the concave portion 11b.

The door 20 is shown in FIG. 1 and FIGS. 9 to 12 . As shown in FIG. 1 , the door 20 is used to close the opening of the heating chamber 11 in the body 12 of the microwave oven, and almost the entire front surface of the door 20 is covered by a glass plate 21 . FIG. 12(A) is a cross-sectional view at the central position on the heat radiation plate 27c, and FIG. 12(B) is a cross-sectional view at the bonding position of the heat radiation plate 27a.

As shown in Figure 9, the machine door 20 has a rectangular frame part made of metal, that is, a door frame 22, and the front side of the door frame body 22 (ie, the left side in Figure 9) is provided with: a door trim 23, a rectangular plate-shaped glass plate 21, and decorative plate 24. An opening 22a is provided at the center of the door frame 22, and an operating portion 22b is provided below the opening 22a. The operation part 22b is provided with a notch 22d for exposing the liquid crystal display 22c and a hole 22e for protruding the operation button 26 . The upper part of the door frame 22 is also provided with a hole 22f for installing the handle 25 . The door trim 23 is a rectangular frame-shaped member, and a cutout 23a for exposing a display portion and a hole 23b for extending an operation button 26 are provided on the lower side. The glass plate 21 is a transparent glass plate that almost covers the entire range of the front surface of the machine door 20. The bottom of the glass plate 21 has a hole 21a for installing the operation button 26, and the top has a plurality of holes for installing the handle 25. hole 21b. The decoration board 24 presses the surroundings of the glass plate 21, the purpose is to strengthen the glass plate 21 and improve the aesthetics of the appearance.

As shown in FIG. 10 , the handle 25 includes: a base member 25a for mounting on the top of the door 20 , a handle bar 25b for the user to grasp, and a fixing member 25c for assembling the handle bar 25b to the base member 25a. The base member 25a has left and right two block members 25d (only one is shown in FIG. 10 ) and a coupling member 25e connecting the two block members 25d. The block part 25d is provided with a plurality (for example, two) cylindrical protrusions 25f for assembly. The raised portion 25f passes through the hole 21b of the glass plate 21 and the hole 23c of the door trim 23, is inserted into the hole 22f of the door frame 22, and is fixed by screws from the back of the door frame 22. In addition, a circular protruding portion 25g for installing the pull handle 25b is also provided on the block member 25d. The protruding part 25g is inserted into the installation hole 25h provided on the pull handle 25b to realize positioning, and then the fixing part 25c is inserted from the end of the pull handle 25b to catch the protruding part 25g, and the pull handle 25b can be fixed to the block. part 25d.

Since almost the entire extent of the front surface of the door 20 is covered by a glass plate 21, the glass plate 21 also functions as a reinforcing plate. In this way, the anti-torsion strength and bending strength of the door 20 can be improved, and the closing performance of the door 20 on the machine body 12 can be improved, so the heating efficiency can also be improved. In addition, after covering the front surface with a glass plate 21, not only can the appearance be more neat, but also because the liquid crystal display part 22c can be observed through the glass plate 21, a sense of depth can be produced, making the appearance of the product more beautiful. In addition, since the operation can be realized by only one operation button 26, not only the processing of the glass plate 21 and the like can be simplified, but also the reduction of heat insulation efficiency can be reduced. The operation button 26 has setting functions such as selecting manual heating, selecting automatic heating, setting manual heating time, setting steam supply time, adjusting the finished state of automatic heating, etc. by itself, which can be, for example, Japanese Patent Publication The kind of operating button mentioned in the gazette flat 6-50539. By combining covering the front surface of the door 20 with a glass plate and providing an operation button having the above function, various operation settings can be realized without reducing the strength of the glass and maintaining a simple appearance.

FIG. 11 shows the structure of the inside of the door 20 . As shown in FIG. 11 , the door 20 is further provided with a circuit board, ie, an operation substrate 27a, and a cooling device 60 (see FIG. 12 ) for cooling the operation substrate 27a by circulating cold air.

That is, as shown in FIGS. 11 and 12 , the rear side (the right side in FIG. 11 ) of the operation portion 22b below the door frame 22 is provided with an operation substrate 27a, a substrate cover 27b made of resin, and a heat sink made of aluminum in sequence. Plate 27c. In addition, an electromagnetic wave sealing plate 28 and an inner decorative cover 29 for decorating the rear surface of the door 20 are provided on the rear side of the entire frame body of the door frame 22 . The electromagnetic wave sealing plate 28 is formed by adorning a heat-resistant glass 28b in a rectangular metal frame 28a, and is fixed on the back side of the door frame 22 with screws.

Therefore, the operation substrate 27a, the substrate cover 27b, and the heat dissipation plate 27c are installed between the door frame 22 and the electromagnetic wave sealing plate 28 (and the inner decorative cover 29). Furthermore, a space 28d for cooling is formed between the radiator plate 27c and the inner decorative cover 29, and an air flow path is formed along the width direction of the door 20. As shown in FIG.

As shown in FIG. 13, the inner decorative cover 29 is a rectangular frame-shaped member made of resin, and the above-mentioned cooling space 28d is formed between the inner side of the lower side 29a and the heat dissipation plate 27c. In addition, both end portions of the lower side 29a are partially cut away, and air holes 29b communicating with the space 28d are provided at both end portions. Like this, the air hole 29b on one side is used as the air inlet that introduces cold wind from the air duct 62 (seeing Fig. 15) of body 12, and the air hole 29b on the other side is used as the cold wind discharge after supercooling operation substrate 27a. exhaust vent.

Cooling device 60 as shown in Figure 16, comprises: be arranged on the lower side of the bottom plate 11a of body 12 and have the air supply part 61 of fan 61a, and guide the cold wind that air supply part 61 produces to the air duct in front of body 12 62. When the door 20 is closed, the air outlet 62a of the air duct 62 is connected to the air hole 29b of the air inlet of the inner decorative cover 29, and cool air is sent into the space 28d inside the door 20. The cold air blown in cools the radiator plate 27c, the operation board 27a, etc., and then is discharged to the outside from the air hole 29b that is the downstream air outlet of the cooling space 28d in the inner decorative cover 29.

After adopting this structure, since the door 20 for opening/closing the opening on the heating chamber 11 in the body 12 is provided with a cooling device 60 to circulate cold air, the operation board 27a arranged in the door 20 can Maintained at a certain temperature, so as to maintain its original performance for a long time.

As shown in FIG. 17(A) and FIG. 17(B), a grilled tray 50 for high-frequency electromagnetic wave cooking includes a tray body 51 and an electromagnetic wave absorbing heating element (ferrite) 52 . The tray body 51 has a top 51a that contacts the object M to be heated and supports it, and a bottom 51b that does not come into contact with the object M but collects oil or the like. The electromagnetic wave absorbing heat generating body 52 is disposed on the back side of the tray body 51 and is disposed in regions corresponding to the top 51a and the bottom 51b. As shown in FIG. 17(B), the thickness T1 of the electromagnetic wave absorbing heating element 52 in the region corresponding to the bottom 51b is thinner than the thickness T2 in the region corresponding to the top 51a. Specifically, the thickness T1 of the region corresponding to the bottom 51b may be set to about 0.8mm, and the thickness T2 of the region corresponding to the bottom 51b may be set to 1.4mm. That is, the ratio between T1 and T2 can be set as T1:T2=1:1.5.

After adopting such a structure, in the high-frequency electromagnetic wave cooking belt grid tray 51 having the top 51a in contact with the object to be heated M and the bottom 51b not in contact with the object to be heated M, the electromagnetic wave absorbing heating element in contact with the back surface of the top 51a The thickness T2 of 52 is set larger than the thickness T1 of the electromagnetic wave absorbing heat generating body 52 in contact with the back surface of the bottom portion 51b. Therefore, concentrated heating can be performed on the thick top part 51a of the electromagnetic wave absorbing heating element 52, and the cooking time can be shortened.

The tray body 51 of the grill tray 50 for high-frequency electromagnetic cooking is preferably made of aluminum. If the tray body 51 is made of aluminum with high thermal conductivity, the heating efficiency can be improved and the cooking time can be shortened.

And, the back side of the tray disc body 51 in the band grid tray 50 for high-frequency electromagnetic wave cooking is preferably the raw material surface in the area where the electromagnetic wave absorption heating element 52 contacts, without any coating treatment, so that the thermal conductivity can be improved. Reduce cooking time.

In addition, the tray 50 with grill for high-frequency electromagnetic wave cooking is put into and taken out from the heating chamber 11 by sliding on the support protrusions 11f provided on the left and right side walls 11c of the heating chamber 11, so, On the bottom surface of both ends of the grill tray 50 for high-frequency electromagnetic wave cooking, sliding parts 53 that are easy to slide and have high heat resistance are fixed by screws.

As shown in FIG. 18 , the water tank 70 can be freely disassembled and is used to store water for generating water vapor S, and is arranged at the front and bottom of the body 12 of the high-frequency electromagnetic wave cooker 10 . Concrete structure as shown in Figure 19, front opening is equipped with at the front bottom of body 12, is provided with insertion port 72a and is rectangular box-shaped water tank accommodating chamber 72, and water tank 70 can be inserted in this water tank accommodating chamber 72. In addition, although the water tank storage chamber 72 protrudes forward compared with the front surface of the machine body 12 , it is still retracted backward compared with the front surface of the machine door 20 .

In addition, as shown in FIG. 18 , a hand grip portion 71 is provided on the front surface of the water tank 70 . This grip portion 71 can be freely attached and detached along a direction (left and right direction in FIG. 18B ) orthogonal to the detachment direction (front and rear direction) of the water tank 70 . Specifically, a guide rail 73b is provided on the front surface of the water tank body 73 in the sliding direction of the grip portion 71, and a slide guide rod 71a that can slide along the guide rail 73b is provided on the inner surface of the grip portion 71.

Therefore, the gripping portion 71 and the installation position of the gripping portion 71 (ie, the front surface of the water tank body) are easy to clean. In addition, since the gripping portion 71 slides on the water tank 70 in a direction perpendicular to the dismounting direction of the body 12, when disassembling the water tank 70 on the body 12, the gripping portion 71 can be prevented from inadvertently from the water tank 70.

The structure of water tank 70 is as shown in Figure 18, comprises: be the water tank box body 73 that has bottom frame shape, have the cover 74 that covers the opening surface (top surface) of water tank box body 73, be arranged around the opening and along the A first protruding portion 73a protruding away from the water tank body along the opening, and a second protruding portion 74a disposed around the cover 74 and protruding away from the cover 74 along the covering surface. The first protrusions and the second protrusions are alternately arranged along the same plane as the opening surface and the closing surface.

As shown in FIG. 18, the central portion of the bottom plate 73c in the water tank case 73 is the lowest, so that water can be collected to the central portion when the amount of water in the water tank becomes small. The inner wall surface of the rear wall 73d of the water tank casing 73 is provided with a water suction pipe 75 that can be used to suck out the water in the water tank. The other end of the water suction pipe 75 is open on the back of the rear wall 73d of the tank body 73 (see 75a in reference to FIG. 18C). When the water tank 70 is installed in the machine body 12 , the opening 75 a is connected to a water absorbing device (not shown) provided in the machine body 12 to supply the water in the water tank 70 to the evaporation pan 41 . In addition, the water tank 70 is also provided with a small cover 74b for adding water, and the user only needs to remove the small cover 74b to add water.

Because the first protruding portion 73a and the second protruding portion 74a are alternately arranged along the opening surface and the sealing surface, therefore, the lid 74 can not only reliably close the water tank box body 73, but also can close the water tank box body 73 by twisting the water tank box body 73 and Cover 74 The cover 74 is easily removed.

Also, the grip portion 71 is made of the same color as the later-mentioned water tray. In this way, the width of the display portion 76 representing the water level occupies a part of the lateral width of the front surface of the water tank 70. Compared with the case where the entire front surface of the water tank is made transparent, the water level therein can be determined more clearly, and the appearance is also improved when assembled into the body 12. more beautiful. In addition, the inner surface of the marking portion 76 indicating the water level in the water tank is preferably engraved so that the water level in the water tank 70 can be clearly seen visually.

In addition, as shown in FIG. 20 , a water receiving tray 77 is provided on the front top and left and right sides of the water tank 70 , and the water receiving tray 77 is used to recover the dripping water when the door 20 is closed after steam cooking. The water receiving tray 77 is disposed below the boundary line between the machine door 20 and the machine body 12 when the water tank 70 is installed in the water tank accommodating chamber 72 of the machine body 12 . And, in the area 77b above the water tank 70 in the water receiving tray 77, the water droplets are separated left and right, and flow to the left and right water storage parts 77a for storage.

In addition, the microwave oven of this invention is not limited to the above-mentioned specific embodiment, It can change and improve suitably.

In summary, the tray with grill for high-frequency electromagnetic wave cooker of the present invention is provided with a top that contacts the object to be heated, a bottom that does not contact the object to be heated, and an electromagnetic wave absorbing heating element that is in contact with the back of the top and generates heat. The thickness is set to be thicker than the thickness of the electromagnetic wave absorbing heat generating body which is in contact with the back surface of the bottom which is not in contact with the object to be heated and generates heat. Therefore, the top can be heated intensively to shorten the cooking time. The present invention can be applied to trays with grills for high-frequency electromagnetic wave cooking and the like used when heating an object to be heated with high-frequency electromagnetic waves.

Claims (3)

1. tray with grilling used for high-frequency electromagnetic wave cooking is characterized in that comprising:

Have the top of contact heating object and the pallet disk body of the bottom that does not contact heating object; With

Be located at the electro-magnetic wave absorption heater in the corresponding zone in the back side and described top and described bottom of described pallet disk body,

Thickness ratio with corresponding zone, described bottom in the described electro-magnetic wave absorption heater is thin with the thickness in corresponding zone, top.

2. tray with grilling used for high-frequency electromagnetic wave cooking as claimed in claim 1 is characterized in that: described pallet disk body is made of aluminum.

3. tray with grilling used for high-frequency electromagnetic wave cooking as claimed in claim 2 is characterized in that: the back side of described pallet disk body is the original material face with the zone that described electro-magnetic wave absorption heater is contacted.

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