JP2006138553A - Heating cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve appearance of a heating cooking device provided with a top plate with different thickness portions. <P>SOLUTION: The top plate 4 is composed of one transparent tempered heat resisting glass plate, and a rectangular cooking area 17 and a band like intake and exhaust rows 18 are provided a fore and aft on the top face of the top plate 14. The cooking area 17 and the intake and exhaust area 18 are slightly more recessed than other areas on the top plate, and by such a composition, a frame part 19 is formed integrally with a circumferential rim part of the top plate 4, and a protrusion part 20 is integrally formed between the cooking area 17 and the intake and exhaust area 18. A heat resisting coating film is formed on a bottom face of a circular frame of the top plate 4, and a light transmitting film comprising metallic material such as titanium is formed on other portions by sputtering. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cooking device including a top plate on which a heated cooking container is placed.

  A cooking device called a cooking heater incorporated in a system kitchen includes a main body case fitted into a cooking table and a top plate placed on the cooking table so as to close an upper opening of the main body case. A heating means such as an induction heating coil or a radiant heater is arranged in the main body case, and the cooking utensil on the top plate is heated by the heating means so that the heated object in the cooking container is cooked. Yes.

The top plate is installed on a cooking table with a frame attached to the peripheral edge thereof. The frame prevents boiled soup spilled on the top plate from flowing out to the cooking table (see Patent Document 1 and FIG. 1).
Patent No. 3054836

  However, there is a drawback in that it is difficult to remove dirt that has adhered due to boiled broth or the like entering the gap between the top plate and the frame. Therefore, it is considered that the top plate and the frame are integrally formed by increasing the peripheral edge of the top plate.

  In the cooking heater, a colored glass top plate is employed in order to prevent the induction heating coil and the like in the main body case from being visually recognized through the top plate and impairing the appearance. Accordingly, the color density (brightness) of the top plate is determined by the thickness of the top plate. When the thickness of the entire top plate is uniform, the color density of the entire top plate is uniform. Accordingly, as described above, when the peripheral edge of the top plate is made higher, the thickness of the peripheral edge becomes larger than that of the other parts. There was a problem that was damaged.

  This invention is made | formed in view of the said situation, The objective is providing the heating cooker which can aim at the improvement of an external appearance in what provided the top plate which has a part from which thickness dimensions differ. is there.

The present invention provides a heating cooker comprising a heating means and a top plate made of a transparent glass plate provided above the heating means and having portions with different thickness dimensions, and a thin film is formed on the lower surface of the top plate It is characterized by that.
In this case, the thin film may be formed by depositing any one of a semiconductor, a metal, and a metal oxide on the lower surface of the top plate by sputtering, or by coating.

  According to the above configuration, even if there are portions having different thickness dimensions on the top plate, the color density of the entire top plate can be made uniform by aligning the thickness dimension of the thin film and the material of the thin film. .

  Several embodiments in which the present invention is applied to a cooking heater as a cooking device incorporated in a system kitchen will be described below.

  1 to 4 show a first embodiment of the present invention. As shown in FIG. 1, a cooking heater (corresponding to a heating cooker) 1 according to this embodiment includes a rectangular box-shaped main body case 3 incorporated in a cooking table 2, and a top plate 4 that closes the upper opening 3a. It is configured with.

  As shown in FIGS. 1 to 4, two induction heating coils 5 (only one is shown in FIG. 2) and one radiant heater 6 are arranged in the upper part of the main body case 3. The induction heating coils 5 are respectively placed on the support bases 7 arranged side by side on the front part in the main body case 3. The radial heater 6 is accommodated in a heat insulating container 8 fixed at the center of the rear part in the main body case 3.

  Although not shown in the figure, in the lower right part in the main body case 3, a control device mainly composed of an inverter device and a microcomputer for supplying a high-frequency current to the induction heating coil 5, the inverter device and the induction heating coil 5, A cooling fan or the like for cooling the radiant heater 6 or the like is disposed.

  On the other hand, a roaster 9 using a sheathed heater (not shown) as a heat source is provided at the lower left portion in the main body case 3. An operation panel 10 is provided on the front right side of the main body case 3. The operation panel 10 is provided with a dial 12 for turning on and off the power switch 11, the induction heating coil 5, the radiant heater 6, and the sheath heater of the roaster 9 and adjusting the output.

  A flange 13 is provided on the outer periphery of the upper end of the main body case 3, and the main body case 3 fitted from the upper opening 2 a of the cooking table 2 has the flange 13 placed on the peripheral edge of the opening 2 a. Is supported by the cooking table 2. A support frame 14 is connected to the upper end of the main body case 3. The support frame 14 is placed on the peripheral edge of the opening 2 a of the cooking table 2 and is integrally joined to the lower surface of the peripheral edge of the top plate 4 by an adhesive 15. Accordingly, the weight of the main body case 3 is supported on the cooking table 2 by the flange 13 or the support frame 14 without being directly applied to the top plate 4. A packing 16 is interposed between the outer peripheral end of the top plate 4 and the upper surface of the cooking table 2 to prevent liquid from entering.

  The top plate 4 is composed of a transparent tempered heat-resistant glass plate, and a rectangular cooking area 17 and a strip-shaped intake / exhaust area 18 are provided in the front and back side of the top plate 4. The cooking area 17 and the intake / exhaust area 18 are slightly recessed from other areas on the top plate 4. That is, with such a configuration, the frame portion 19 is integrally formed on the peripheral edge portion of the top plate 4, and the ridge portion 20 is integrally formed between the cooking region 17 and the intake / exhaust region 18. The frame portion 19 and the ridge portion 20 correspond to the above-mentioned “other region”. The frame part 19 and the protrusion part 20 protrude above the cooking area | region 17 and the intake / exhaust area | region 18, and the thickness dimension is large.

  In the cooking area 17, circular frames 17a, 17b, and 17c that indicate the placement positions of heated cooking containers (cooking utensils) such as the pan 21 are printed. The induction heating coil 5 is located in the lower part of the circular frames 17a and 17b in the main body case 3, and when heating cooking is performed using the induction heating coil 5, the induction heating coils 5 are arranged on the circular frames 17a and 17b. Place the cooking container to be heated. The radiant heater 6 is located in the lower part of the circular frame 17c in the main body case 3, and when cooking using the radiant heater 6, a heated cooking container is placed on the circular frame 17c. .

  Further, an output display unit 22 for displaying the output state of the induction heating coil 5 is provided in front of the circular frames 17a and 17b in the top plate 4, respectively. The output display unit 22 is composed of a plurality of LEDs 22 a arranged below the top plate 4. The LED 22a is mounted on a printed circuit board (not shown) attached to the front half of the outer periphery of the support base 7.

  In the intake / exhaust region 18, oval openings 23 and 24 are formed side by side. The right opening 24 faces an opening 25a of an intake duct 25 extending toward the cooling fan. The left opening 23 has an exhaust port (not shown) for exhausting air that has passed through the vicinity of the inverter device, the induction heating coil 5 and the like by the air blowing action of the cooling fan, and an exhaust port (not shown) of the roaster 9. (Not shown). A cover 27 having a large number of air holes 26 is detachably mounted on the upper surface of the intake / exhaust region 18.

  As shown in FIG. 2, an inclined surface 19a descending toward the outer periphery is formed on the upper surface of the peripheral edge of the frame portion 19 by cutting. By providing the inclined surface 19a, the impact when the heated cooking container such as the pan 21 collides with the peripheral edge of the top plate 4 is reduced, or the top plate 4 (frame portion 19) and the heated cooking container are prevented from being damaged. You can do it. By providing the inclined surface 19a, the thickness of the frame portion 19 is smaller at the outer peripheral portion than the inner peripheral portion, and in particular, the thickness dimension at the outermost peripheral portion of the frame portion 19 is the thickness of the cooking region 17. Smaller than dimensions.

  On the other hand, a light transmissive thin film 28 made of a metal material such as titanium is formed on the lower surface of the top plate 4 by sputtering. The thickness of the thin film 28 is set to several hundreds of nanometers, so that the top plate 4 allows the wavelength near red to be transmitted better than other visible light. The output display unit 22 includes an LED 22a that emits red light having a wavelength of about 600 to 650 nm. Accordingly, a part of the light emitted from the LED 22 a passes through the top plate 4 and is visible from above the top plate 4. With the above configuration, the top plate 4 is observed as a metallic color tone.

  Further, since the light transmissive thin film 28 reflects the infrared rays emitted from the radial heater 6, the thin film 28 is formed on substantially the entire lower surface of the top plate 4 except for the lower surface of the circular frame 17 c corresponding to the radial heater 6. ing. Therefore, a heat resistant coating film 29 is provided on the lower surface of the circular frame 17 c of the top plate 4. The coating film 29 has a color or tone similar to that of the thin film 28 and corresponds to the thin film of the present invention. The coating film 29 is applied to the lower surface of the top plate 4 so that the peripheral edge wraps with the thin film 28. An upper end portion of the heat-resistant container 8 is in contact with a wrap portion between the thin film 28 and the coating film 29, and the wrap portion is configured to be difficult to see from the top plate 4.

  In the above configuration, the heating switch is turned on / off and the output is adjusted by turning on the power switch 11 and operating the dial 12. For example, when cooking using the left induction heating coil 5, the pan 21 is placed on the left circular frame 17b and the dial 12 is operated. As a result, the induction heating coil 5 is energized, and the number of LEDs 22a corresponding to the output of the induction heating coil 5 at that time is turned on. Therefore, the user can confirm the output of the induction heating coil 5 by looking at the number of LEDs 22a in the lighting state of the output display unit 22 from above the top plate 4.

  Further, when the broth spills from the pan 21 during cooking, the broth spreads over the cooking area 17. At this time, the broth spread in the cooking region 17 is prevented from flowing out to the cooking table 2 by the frame portion 19, and is prevented from reaching the intake / exhaust region 18 by the ridge portion 20. In addition, since the frame portion 19 and the ridge portion 20 are provided integrally with the top plate 4, there is no seam between the frame portion 19 and the ridge 20 and the cooking region 17. Therefore, it is possible to wipe off the spilled spilled food in the cooking area 17 cleanly.

By the way, the frame portion 19 and the protrusion portion 20 are integrally provided on the top plate 4 so that the thickness of the entire top plate 4 is not uniform. That is, the portion of the top plate 4 where the inner peripheral portion of the frame portion 19 and the protruding portion 20 are provided has a thickness dimension larger than that of the cooking region 17 and the intake / exhaust region 18, The outer peripheral portion is smaller in thickness than the cooking area 17 and the intake / exhaust area 18. Therefore, when the top plate 4 is made of colored glass, the color of the top plate 4 is partially darkened or thinned to deteriorate the appearance. On the other hand, in this embodiment, since the thin film 28 and the coating film 29 are formed on the lower surface of the transparent glass plate, the top plate 4 can be made to have almost the same color.
Moreover, the thin film 28 is configured to transmit the light of the LED 22a by adjusting the thickness dimension appropriately. Therefore, it is not necessary to remove the thin film 28 on the lower surface portion of the output display portion 22 in the top plate 4 in order to transmit the light of the LED 22a.

  5 and 6 show a second embodiment of the present invention, and the differences from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, two circular recesses 31 are provided in a portion of the cooking region 17 located above the induction heating coil 5 instead of recessing the entire cooking region 17. Therefore, the top plate 4 according to the present embodiment does not have the frame portion 19 and the ridge portion 20 shown in the first embodiment. The recess 31 is larger than the circular frames 17a and 17b, and the circular frames 17a and 17b are printed on the bottom surface of the recess 31.

An inclined surface 32 that descends toward the outer periphery is formed on the upper surface of the peripheral edge of the top plate 4 by cutting. The inclined surface 32 has the same function as the inclined surface 19a shown in the first embodiment.
Also in the present embodiment, the coating film 29 is provided on the lower surface of the circular frame 17c of the top plate 4, and the thin film 28 is provided on the other lower surface. Other configurations are the same as those of the first embodiment.

  With the above configuration, in the top plate 4 according to the present embodiment, the thickness dimension in the portion where the intake / exhaust region 18, the recess 31, and the inclined surface 32 are provided is smaller than the thickness dimension of the other portions. However, also in this embodiment, the top plate 4 is made of a transparent glass plate, and the thin film 28 and the coating film 29 are provided on the lower surface thereof, so that the color of the entire top plate 4 can be made substantially the same.

  In the present embodiment, the following effects are achieved by providing the depression 31 in the cooking region 17. When performing induction heating cooking using the aluminum pan 21, the pan 21 placed on the circular frame 17a or the circular frame 17b may move by a repulsive force due to the magnetic flux of the induction heating coil 5. However, since the inner peripheral surface of the recess 31 is located outside the circular frames 17a and 17b, the pan 21 is prevented from moving greatly beyond the inner peripheral surface. In addition, since the depression 31 is provided, most of the broth spilled from the pan 21 is accumulated in the depression 31, so that it can be prevented from spreading over the entire cooking area.

  The present invention is not limited to the above-described embodiments, and for example, the following modifications are possible.

  7 and 8 show an example in which unevenness different from the depression 31 is provided in a portion of the upper surface of the top plate 4 located above the induction heating coil 5. Specifically, FIG. 7 shows an example in which a spherical concave portion 41 is provided in a portion of the top surface of the top plate 4 located above the induction heating coil 5. A part of the bottom of the wok 42 as a cooking utensil is accommodated in the recess 41, and the wok 42 can be stably held.

  FIG. 8 shows an example in which a plurality of convex portions 43 are provided in a portion of the top surface of the top plate 4 located above the induction heating coil 5. The convex portions 43 are arranged side by side in a ring shape, and can stably hold a small pan 44 or a small pan having a flat bottom portion.

  In the configuration of FIG. 7, the thickness dimension of the top plate 4 in the portion where the recess 41 is provided is smaller than in the other portions. Moreover, in the structure of FIG. 8, the thickness dimension of the top plate 4 of the part which provided the convex part 43 becomes larger than another part. However, in any configuration, the color density of the entire top plate 4 can be made substantially uniform by forming the thin film 28 on almost the entire lower surface of the top plate 4.

In addition, you may provide the hollow 31, the recessed part 41, and the convex part 43 in the part located in the upper surface of the top plate 4 above a radial heater.
In the above embodiment, the coating film 29 may be formed on almost the entire lower surface of the top plate 4 instead of the thin film 28. In this case, since the light of the LED 22a is not transmitted, the output display unit 22 is not provided with the coating film 29.

  The present invention is not limited to a top plate that integrally has a cooking area and an intake / exhaust area, but can also be applied to a top plate that has only a cooking area. Moreover, the frame of another member may be attached to the outer peripheral part of the top plate. Furthermore, as long as the appearance is not impaired, there may be a portion where the thin film is not formed on the lower surface of the top plate.

  The present invention can also be applied to a cooking device having only an induction heating coil or only a radiant heater. Further, the present invention is not limited to a heating cooker incorporated in a cooking table, and can also be applied to a heating cooker used by being placed on a cooking table or the like.

The external appearance perspective view of the cooking heater which shows the 1st Example of this invention and is shown in the state integrated in the cooking table Vertical front view of the periphery of one induction heating coil Vertical side view of the rear of the top plate Longitudinal front view of the periphery of the radiant heater FIG. 1 equivalent view showing a second embodiment of the present invention. 2 equivalent diagram FIG. 6 equivalent view showing a modification of the present invention FIG. 6 equivalent view showing another modification of the present invention

Explanation of symbols

  In the drawings, 1 is a cooking heater (heating cooker), 4 is a top plate, 5 is an induction heating coil (heating means), 6 is a radiant heater (heating means), 17 is a cooking area, 28 is a light-transmitting thin film, 29 is A heat-resistant coating film (thin film), 31 is a depression, 41 is a recess, and 43 is a protrusion.

Claims (4)

Heating means;
A top plate made of a transparent glass plate provided above the heating means and having portions with different thickness dimensions;
A heating cooker comprising a thin film formed on the lower surface of the top plate.   2. The cooking device according to claim 1, wherein the thin film is formed by sputtering one of a semiconductor, a metal, and a metal oxide on the lower surface of the top plate.   The heating cooker according to claim 1 or 2, wherein a region of the upper surface of the top plate located above the heating means is recessed from other regions. The heating means is configured with an induction heating coil,
The heating cooker according to claim 1 or 2, wherein a portion of the top plate located above the induction heating coil is provided with unevenness for holding the cooking container to be heated.

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