JP2007292384A - Induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach a thin film for effectively preventing damage caused by impact, to a frameless top plate. <P>SOLUTION: A case body 3 comprising the top plate 4 mounted to the upper face is held in a top plate 2 of a kitchen or the like by dropping, and the outer peripheral edge part of the top plate 4 is arranged overlapping the top plate 2 to form built-in constitution. The top plate 4 is integrally formed of heat resistant glass or ceramic, and the heat resistant thin film 25 formed of a nonmetallic material is attached to the peripehral edge of a placing face of the top plate 4 from the upper face to the side face. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an induction cooking device that heats a cooked container placed on a top plate.

  Generally, in an induction heating cooker, an induction heating coil or a radiant heater such as a nichrome wire is provided as a heating source in a box-shaped case body, and is placed on a top plate on the opposite upper surface side. The heating cooking container is heated. This kind of induction heating cooker is mounted on a top plate such as a system kitchen by dropping, and the top plate is maintained in a state of protruding on the top plate. This is a so-called drop-in method, and is a means for incorporating the case body from above into an opening formed in the top plate. However, the top plate made of crystallized glass, which is usually made of heat-resistant tempered glass, includes an intake / exhaust port portion provided at the rear because the processing after crystallization is not easy. Is covered with a frame-like frame as a separate member and fixed with an adhesive or the like. In addition, the frame-shaped frame is devised such that it is in contact with and supported by the opening edge of the top surface of the top plate, or the peripheral edge of the top plate is covered and the appearance is improved (for example, patent document) 1).

  However, mounting the frame of the separate member as described above on the peripheral end portion causes not only the problem of increasing the number of assembly steps but also the appearance design of the top plate and the top plate upper surface and the edge portion of the frame. If the stepped portion is contaminated with dirt or the like, or if the degree of adhesion is poor, there is a problem that it cannot enter the gap and cleaning is easy. In many cases, the frame is made of metal. In this case, however, there is a concern that safety must be sufficiently considered so as not to be injured at the edge portion.

  Therefore, as a countermeasure, there has been proposed a configuration in which the frame-like frame is removed, that is, a configuration in which the peripheral end portion is integrally formed with only a glass top plate as a frameless. In this case, a stepped portion is formed at the peripheral end of the top plate so that the outer peripheral edge of the top plate overlaps the top surface of the top plate. However, various pans, pans, chopping boards, tableware baskets, etc. are frequently moved on the top plate of the kitchen, and the peripheral edge of the top plate is damaged by colliding with the top plate of the stepped portion. The problem was that it was easy to do.

By the way, the induction heating cooking appliance of the structure which stuck the heat-resistant sheet on the whole upper surface of the top plate as a prior art is proposed (for example, refer patent document 2). According to this, vibration is suppressed by the cushioning action of the heat-resistant sheet against the impact of a pan or the like, or slipping is prevented, and electromagnetic vibration and noise when the induction heating coil is energized can be reduced.
JP 2005-353458 A Japanese Patent Laid-Open No. 04-2082

  However, it is effective for a so-called single-function induction heating cooker equipped with a single heating coil as a heating means. However, in the built-in type built in the kitchen as described above, the pan or cooking handled on the top plate is used. Equipment is moved frequently, and naturally it is easy to collide with the step part, and its peripheral edge is easily damaged by the impact from the top or side, and the above configuration is sufficient to protect it. Not. In addition, the ultra-thin sheet adhered to the upper surface is exceptional in that it suppresses the impact stress in the compression direction of the top plate (glass), except for having a slight cushioning property against falling objects from above. There is no effect.

  In addition, in a composite heating cooker having the above-described radiant heater in addition to the induction heating coil as a heating source, it is not possible to stick a sheet on the top plate, and therefore, except for a portion facing the heater. Although sticking is also conceivable, there are problems such as the appearance design being damaged or being easily peeled off. In addition, in general, the top plate is coated with an inorganic paint on the front and back surfaces to color the top plate (colored), or the design and display of patterns, characters, etc. Although the particles are fixed to the top plate, the coating film is not connected in a film form and is easily cracked, so that a sufficient reinforcing effect such as prevention of breakage of the glass cannot be obtained.

  In order to solve the above problems, the present invention is provided with a top plate on which a thin film of a heat-resistant film made of a nonmetallic material that can effectively prevent damage to the top plate against an impact without impairing the appearance design. An object is to provide an induction heating cooker.

  In order to achieve the above object, an induction heating cooker according to the present invention includes a case main body provided with heating means such as an induction heating coil and a radiant heater, and a cooking container that is mounted so as to cover the upper surface of the case main body. A built-in configuration in which the case body is housed by dropping it on a top plate of a kitchen or the like, and the outer peripheral edge of the top plate is placed on the top plate. The top plate is integrally formed of heat-resistant glass or ceramic, and a heat-resistant film-like thin film made of a non-metallic material is applied to the peripheral end of the mounting surface of the top plate from the upper surface to the side surface. It is the main feature.

    According to the above-mentioned means, it is possible to protect the stepped portion from the top plate generated on the top plate by the deposition of the thin film, in particular, from the damage due to the impact at the peripheral end portion, and the frameless top without impairing the appearance design. An induction heating cooker having a plate can be provided.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
2 is an external perspective view in a state where the induction heating cooker 1 is incorporated in the top plate 2 of the system kitchen, for example, FIG. 3 is a longitudinal side view thereof, and FIG. 4 is a plan view thereof. The overall configuration will be outlined with reference to the drawings. The induction heating cooker 1 includes a rectangular box-shaped case main body 3 having an open upper surface and a top plate 4 attached to the upper surface, and the case main body 3 portion is formed on the top plate 2 of the kitchen. It is dropped from the opening 2a (see FIG. 3) and is supported so as to overlap the opening peripheral edge of the top plate 2 on the back side of the outer peripheral edge of the top plate 4 (details will be described later). The case body 3 is provided with heating means and air cooling means, which will be described later, and an operation provided with a dial, a display unit, and the like for operating cooking condition settings on the right side of the front surface as shown in FIG. A panel unit 5 is provided, and a roaster device 6 including a sheathed heater (not shown) is provided on the left side.

  On the other hand, the top plate 4 constituting the upper surface of the induction heating cooker 1 is integrally formed in a flat rectangular plate shape made of, for example, transparent heat-resistant tempered glass (crystallized glass). Heating units 8, 9, and 10 are printed and displayed at three locations indicated by the middle circular frame lines, which indicate a placement unit suitable for heating a heated cooking container such as the pan 7. Among them, the heating parts 8 and 9 at the two places on the left and right of the front side can heat the pan 7 as the cooking container based on the induction heating coils 11 and 12 which is one of the heating means provided in the case body 3. Moreover, the heating part 10 located in the back center arrange | positions the radiator heater 13 which consists of a nichrome wire, for example, can heat-heated cooking containers, such as the pan 7, and forms what is called a three-necked stove.

  However, the upper surface of the top plate 4 having the three heating portions 8, 9, and 10 on which the cooked cooking container is placed is formed on a flat surface except at least an area having a rear intake / exhaust portion (described later), In addition to the heating units 8, 9, 10, the pan 7 is extended and enlarged particularly in the left-right direction so that the pan 7 can be used as a wide mounting surface. Further, output display units 8a, 9a, 10a are provided in front of the heating units 8, 9, 10 respectively, and an output (thermal power) display in response to dial operation of the operation panel unit 5 is omitted although details are omitted. This makes it possible to easily adjust the output. In the rear part of the top plate 4, horizontally long intake ports 14 and exhaust ports 15 are formed in two places on the left and right sides, and a porous plate-like cover member 16 is mounted so as to cover the upper surfaces thereof. However, the air intake / exhaust ports 14 and 15 function as air intake / exhaust portions through the inside and outside of the case body 3, and the cover member 16 is positioned and detachably mounted using a slight stepped portion around the air intake / exhaust ports. Yes.

  In the cross-sectional view of FIG. 3, the heating means facing the right heating unit 8 among the heating units 8, 9, 10 provided in the upper surface of the top plate 4 in the case body 3, that is, the induction heating coil 11. Shows a configuration in which a coil support member 17 is disposed. However, the space below these heating means is equipped with means for driving and controlling the heating means, and an inverter board or microcomputer constituting the inverter 18 for supplying high-frequency current to the induction heating coils 11 and 12 is provided. Built-in control circuit board and the like. The inverter 18 serving as the driving means is configured to include a heat-generating switching element such as an IGBT constituting the main circuit, and induction heating is performed by the driving means and the induction heating coils 11 and 12. Configure the device.

Therefore, in the induction heating apparatus, the air cooling means is provided to cool the heat generating switching elements such as the inverter 18 and the induction heating coils 11 and 12. As the air cooling means, a blower 19 shown in FIG. 3 is provided, and outside air is taken in through the intake port 14, while the downstream side which is the discharge side flows in the direction of the arrow in the figure and the inverter 18 and induction heating. After flowing through a closed space having the coils 11 and 12 and cooling them, the air can be discharged from the exhaust port 15 to the outside.
On the other hand, the roaster device 6 provided on the left side of the case body 3 is provided with independent exhaust means for discharging smoke generated by cooking to the outside using the exhaust port 15. Although the details are omitted, a closed space different from the closed space of the inverter 18 and the like described above is formed, and air is sucked from an appropriate gap on the front surface side so that warm smoke can be naturally exhausted by convection.

Here, the built-in configuration by dropping the case body 3 onto the top plate 2 will be described mainly with reference to FIG. FIG. 1 is an enlarged cross-sectional view taken along line XX in FIG. 4, and the outer peripheral flange portion 20 (not necessarily continuous over the entire periphery) of the case body 3 is an opening portion of the top plate 2. It is configured to be hooked on the peripheral upper surface 2a and receive the load of the case main body 3, so that the induction heating cooker 1 is built in and supported by the top plate 2. However, the case body 3 and the top plate 4 are connected and integrated through a metal reinforcing plate 21 having a rectangular frame shape as a whole.
The reinforcing plate 21 has a frame shape in which the outer shape is slightly smaller than the outer shape of the top plate 4 and the inside is opened into a large rectangular shape. Specifically, as shown in FIG. 4, at least the three heating means described above are open without covering them, and the portions corresponding to the rear intake and exhaust ports 14 and 15 are open but not shown. Yes.

  In this embodiment, the flat horizontal surface of the upper surface forming the frame shape of the reinforcing plate 21 is the support portion 21a, the hanging pieces vertically bent downward are the fixing portions 21b, and the support portion 21a It is set as the shape which has the concave-shaped part 21c dented below in the front-end | tip part. Thus, the fixing portion 21b is coupled to the case body 3 with the screw 22, and the horizontal support portion 21a is attached to the back surface of the top plate 4 with the adhesive 23 filled in the concave portion 21c. As a result, the top plate 4 and the case body 3 are integrated, and at the same time, the reinforcing plate 21 is applied to the back surface side to improve the strength of the joined top plate 4.

  As described above, the induction heating cooker 1 incorporated in the top plate 2 by dropping is configured such that the opening peripheral edge of the top plate 2 and the outer peripheral edge of the top plate 4 are overlapped, and the portion is supported by the flange 20. The reinforcing plate 21 is joined to the top plate 4, and the packing 24 is joined and fixed to the top plate 4 side by an adhesive on the outer peripheral side thereof. However, in this assembled state, the packing 24 is held in a slightly compressed and crimped state, and has a water sealing function that prevents water from entering from the gap α formed between the top plate 4 and the top plate 2. Eggplant. Note that the gap α is set in consideration of receiving a load at the flange portion 20 as described above. Therefore, the lower surface of the support portion 21a of the reinforcing plate 21 is not in contact with the upper surface of the top plate 2.

  Then, a heat-resistant film-like thin film 25 (shown by a thick solid line) made of a non-metallic material is attached to the rectangular peripheral edge of the top plate 4 from the upper surface to the side surface. The thin film 25 is a film-like thin film 25 formed by applying and baking an organic resin such as a silicone resin or a fluororesin material so that the film thickness t is as extremely thin as 10 to 90 microns. It is. Thus, in this embodiment, the top plate 4 is attached from the upper surface to the side surface, which is the surface of the peripheral end portion, and at least the corners of the so-called peripheral end portion are covered and attached.

Next, the effect | action of the induction heating cooking appliance 1 of the said structure is demonstrated.
First, since the operation of normal cooking by the induction heating cooker 1 is well known, a brief description will be given below. For example, the right induction heating coil 11 is selected as a heating source by selecting from three heating means. The pan 7 is placed on the heating unit 8 to be driven, and is driven through a driving means such as an inverter 18 by a dial operation of the operation panel unit 5. The output is appropriately adjusted, for example, boiled food cooking can be started. In addition, the air blower 19 constituting the air cooling means is also driven, and as shown in FIG. 3, the outside air taken in from the air inlet 14 is blown in the direction of the arrow in the figure, thereby the inverter 18 having a heat generating switching element, And the induction heating coil 11 and the like are air-cooled and exhausted from the exhaust port 15.

In such a cooking operation using the induction heating cooker 1 or a cooking operation on the kitchen top plate 2, the soup is spilled on the top plate 4, or water used in the kitchen is scattered. To do. However, in the present embodiment, the placement surface, which is the upper surface of the top plate 4 having the heating portions 8, 9, and 10 on which the pan 7 and the like are placed, is formed as an integral body that is not equipped with a separate frame or the like. Therefore, dirt can be easily wiped and cleaned, and there are no problems such as dirt collecting or penetrating on the edge portion of the frame, and it can be kept beautiful and clean.
Moreover, the film-like thin film 25 covering the peripheral edge of the top plate 4 is extremely thin even if it has a film thickness of 50 microns, for example, and there is no level difference that causes an edge portion such as a frame. There are no problems such as accumulation of dirt.

  Further, in the above-described cooking operation in the kitchen, various cooking equipment including the pan 7 and the cutting board are moved. At this time, the top plate 4 projecting on the top plate 2, particularly the stepped portion formed on the top surface of the top plate 2 at the peripheral end portion, is easy to collide and easily receive an impact. However, since the peripheral end portion of the top plate 4 serving as the step portion is covered with the thin film 25 from the upper surface to the side surface, the impact can be reduced by the cushioning action. Therefore, the peripheral end portion is not easily damaged or chipped.

  However, even when a very large impact is applied and the glass is broken or broken, the glass fragments can be held in a state of being bonded to the thin film 25, and the safety can be ensured without cutting the fingers or the fragments being scattered. This is also effective because the thin film 25 is formed into a film and is not easily broken even if it is thin, and also has high adhesion to glass. Furthermore, since the thin film 25 is transparent as in this embodiment, the thin film 25 of the top plate 4 is not conspicuous, and the entire mounting surface has the same texture, so that the appearance is good by making use of the gloss of a beautiful glass material. You can get a design.

As described above, the present embodiment has the following effects.
A top plate 4 integrally formed of heat-resistant tempered glass has a heat-resistant film-like thin film 25 made of a non-metallic material on the outer periphery of a mounting surface provided with heating parts 8, 9, and 10 for mounting a pan 7 and the like. Was applied and formed by a baking process. Since this thin film 25 is made of an extremely thin coating film in units of micron, there is a problem that a conventional metal frame is mounted, that is, boiled juice spilled on the mounting surface or water used in the kitchen. Even if they are scattered, there is no trouble such as accumulation or smudges on the edge of the frame, and they can be easily wiped clean so that they are always beautiful and clean, and cooking work on the top plate 4 It is safe with no fear of finger injury.

  In particular, since the thin film 25 is applied so as to cover from the upper surface to the side surface of the peripheral end portion, the shock can be received in a buffering manner with respect to the peripheral end portion where the pan 7 or the like is likely to collide and easily receive a large impact. , Can protect from breakage and loss. In addition, even if damage is caused by a greater impact, the thin film 25 of this embodiment is formed by applying and baking organic resin silicone or fluororesin as a material, so that it can be formed as a film-like coating film. In addition, the adhesion to the glass surface as the top plate 4 is also enhanced, which is effective as an action for suppressing defects and the like, and is effective from the viewpoint of safety due to prevention of injury by effectively suppressing the chipping of the chipped pieces. In particular, since the thin film 25 is applied from the upper surface to the side surface, it is effective for protecting corner portions that are most likely to collide and are easily lost.

  However, in the past, inorganic paint was applied to the top plate to mainly design and display it, but this is because the paint particles are bonded to the glass surface of the top plate. The formation of the coating film has not been achieved, and the deterring force that resists impact is extremely small, and even if this is applied to the peripheral edge, a strong protective effect cannot be expected. In addition, since the thin film 25 is transparent in this embodiment, the thin film 25 on the top plate 4 is combined with the thin film 25 so that the portion of the thin film 25 is not conspicuous and the same texture can be obtained as a whole. A good design effect can be obtained by utilizing the luster of the material.

5 (a), 5 (b), and 5 (c) show the shape of the peripheral end portion of the top plate showing different modifications, and the same parts as those in the above embodiment are the same. A description will be omitted with reference numerals, and different parts will be described.
First, the modification shown in FIG. 2A is a configuration in which a thin film 26 extending to the so-called back surface is attached so as to wrap around the peripheral end portion of the top plate 4. In the case of this configuration, the peripheral end portion covered with the thin film 26 can cope with an impact from any direction, further increasing the deterrent effect against breakage, etc., and in the handling of the top plate 4 up to the assembling work, It is also effective in preventing damage and preventing injuries at the corners of the peripheral edge during carrying.

Next, both (b) and (c) of FIG. 5 are formed by forming a slope portion 28 that slopes downward on the upper surface of the peripheral end portion of the top plate 27, of which FIG. The thin film 29 is applied from the portion 28 to the side surface, and the figure (c) shows the thin film 30 applied beyond the ridge line portion where the horizontal mounting surface and the slope portion 28 intersect.
According to the configuration in which the slope portion 28 is provided, the stepped portion on the top plate (not shown) can be substantially reduced because the so-called right-angled corner portion on the upper surface side is eliminated and the slope is gradually lowered. It is possible to reduce the collision with the stepped portion when handling a heated cooking container such as a pan, and even if it collides, it has the action of mitigating the impact by the inclination angle of the inclined surface portion 28 and not only prevents the top plate 27 from being damaged. Safe cooking work can also be realized.

  In particular, in FIG. (C), since the thin film 30 is deposited on the horizontal mounting surface beyond the ridge line of the slope portion 28, the corner (ridge line portion) of the upper surface is not a right angle but an obtuse angle, Since the pan or the like is the part that is most likely to collide and break easily, the protective effect of covering the ridge line part that is the corner part with the thin film 30 is great.

  In addition, a thin film as shown in FIG. 1A may be applied to the back side corresponding to the slope portion 28 in FIGS. 2B and 2C. In this case, for example, a heavy pan is dropped on the slope portion 28. In this case, in the slope portion 28 which is the dropping point, the upper surface receives impact stress in the compressive direction, while the back surface receives impact stress in the tensile direction on the back side, while the thin film on the back side receives impact stress in the tensile direction. The effect of suppressing the impact and damage can be expected, and in particular, the effect of effectively reinforcing the peripheral edge portion whose thickness is reduced due to the formation of the slope portion 28 is great.

(Second Embodiment)
6 and 7 show a second embodiment of the present invention, in which FIG. 6 is a cross-sectional view of a main part including the radial heater 13, and FIG. 7 shows a test result showing a reinforcing effect by the thin film. The same parts as those in the above embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts will be described.
In this case, as shown in FIG. 6, a thin film 31 is formed and deposited on almost the entire back surface of the top plate 27.
In the following, the configuration will be described. First, the top plate 27 has a frameless configuration, and is provided with an inclined surface portion 28 at the peripheral end portion in the same manner as the embodiment disclosed in FIGS. 5 (b) and 5 (c). In the configuration. The radiant heater 13, which is one of the heating means arranged below the top plate 27, generates heat when a direct current is applied to the nichrome wire, and cooks to be heated such as a pan placed on the top plate 27. The container is heated, and the configuration is such that the radiant heater 13 is disposed in a circular dish-shaped heat-insulating container 32 and is fixed to the case body 3 via a support frame 33.

However, the thin film 31 is deposited on the upper surface side of the top plate 27 beyond the ridge line portion of the inclined surface portion 28 in the same manner as in FIG. 5C, and the surface facing the radiant heater 13 is formed on the back surface side. It is attached except. Specifically, a range corresponding to the facing area of the heat insulating container 32 (indicated by symbol A in the figure) or a mounting surface corresponding to the heating unit 10 is masked and applied, and baked to form the thin film 31. I wear it.
According to such a configuration, in addition to having the effect of the frameless as described above, the effect of depositing the thin film 31 so as to cover the peripheral end portion having the inclined surface portion 28 is also affected by each embodiment of FIG. It is clear that the contents described above are also included.

  By the way, when a heavy pan, for example, is dropped on the mounting surface which is the upper surface of the top plate 27, the upper surface receives impact stress in the compression direction on the upper surface side of the glass top plate 27 which is the dropping point, while the rear surface is the rear surface. Receives impact stress in the tensile direction. However, in this embodiment, since the thin film 31 is applied to almost the entire back surface, the film-shaped thin film 31 exerts an action against the above-described impact stress in the pulling direction of the back surface, and the impact and damage are prevented. The deterrent effect can be expected. Therefore, even if this kind of thin film is deposited on the top surface of the top plate, an effect against the impact stress in the compression direction cannot be obtained, and an effect of preventing breakage or the like cannot be expected.

  FIG. 7 shows the test results. A glass plate having a thickness of 3 mm was prepared as a test sample, the thickness of the thin film was 50 microns, and a pointed weight (300 g) was dropped on the glass surface. The maximum height that can be broken is calculated. As a result, as apparent from FIG. 7, the limit height was 35 cm in Conventional Example 1 (without a thin film), whereas 50 cm was measured in Conventional Example 2 (thin film on the surface). This is considered to be because the limit height at which the glass breaks is extended due to the effect of the buffering action compared to the case without the above thin film, and the effect of suppressing this against the impact stress acting in the compression direction as described above. It is not allowed.

  In the example product corresponding to this example (thin film on the back surface), a limit height of 65 cm was recorded. This is a record on the fact that there is no buffering action on the weight, and it can be known how much the action against the impact stress functions as described above. Therefore, it is possible to avoid increasing the thickness of the top plate 27 for reinforcement such as cracking prevention, and it is effective to suppress the stepped portion protruding on the top plate 3 to be small, and the manufacturing and assembling workability are good and the cost is reduced. Is also advantageous.

  In addition, since the thin film 31 on the back side excludes the portion facing the radiant heater 13, it does not obstruct the heater heating at all, but it is partially heat-degraded even though it has high heat resistance. In consideration of the fact that it melts or melts, it is desirable to avoid the formation of a coating film at the site for safety. Incidentally, in the induction heating coil as described in the above embodiment, the pan and the like do not rise to a high temperature under normal use, but the temperature of the pan rises to about 200 ° C. when the set pan is baked abnormally. However, the silicone resin-based coating film, which is an organic heat-resistant resin of this example, has a heat resistance of about 250 ° C., and other usable fluororesin-based coating films have a heat resistance of about 260 ° C. Therefore, even if the heating means of the induction heating coil is attached without removing the thin film 31, it can sufficiently cope with the high temperature heat generation from the above-mentioned abnormally baked pan. However, it is effective not to apply the thin film 31 to the back surface facing the induction heating coil in order to obtain long-term reliability in consideration of quality maintenance and long-term use.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, the top plate has a frameless configuration, but the area of the intake / exhaust portion for intake or exhaust provided at the rear is a separate member. The top plate may be made of ceramic. Although the film-like thin film is transparent, it can be variously developed such as semi-transparent, color-coded on the upper surface side and the back surface side, and a combination with the color tone of the top plate. In addition, a halogen lamp may be used as a heat source for the radiant heater, and various modifications can be made without departing from the scope of the present invention.

The expanded sectional view cut and shown along the XX line in FIG. 4 which shows 1st Example of this invention External perspective view of induction heating cooker built-in kitchen Vertical side view showing the same schematic configuration Plan view Sectional drawing of the peripheral edge part of the top plate which shows modification (a), (b), (c) Sectional drawing of the principal part which shows 2nd Example of this invention Diagram showing the contents of test results

Explanation of symbols

  In the drawings, 1 is an induction heating cooker, 2 is a top plate, 3 is a case body, 4 and 27 are top plates, 7 is a pan (heated cooking container), 8, 9 and 10 are heating units, and 11 and 12 are Induction heating coil (heating means), 13 is a radiant heater (heating means), 20 is a flange portion, 21 is a reinforcing plate, 24 is a packing, 25, 26, 29, 30, 31 are thin films, and 28 is a slope portion. .

Claims (6)

A case main body provided with heating means such as an induction heating coil and a radiant heater, and a top plate mounted so as to cover the upper surface of the case main body and having the upper surface as a mounting surface of the cooking container to be heated,
In the built-in configuration in which the case body is housed by dropping on a top plate of a kitchen or the like, and the outer peripheral edge portion of the top plate is arranged on the top plate,
The top plate is integrally formed of heat-resistant glass or ceramic, and a heat-resistant film-like thin film made of a nonmetallic material is attached to the peripheral end portion of the mounting surface of the top plate from the upper surface to the side surface. Induction heating cooker.   The induction heating cooker according to claim 1, wherein an upper surface of a peripheral end portion of the top plate has a shape of a slope portion that is inclined downward and outward.   The induction heating cooker according to claim 2, wherein a thin film is deposited on a slope portion of a peripheral end portion of the top plate beyond a ridge line portion intersecting with the mounting surface.   The induction heating cooker according to any one of claims 1 to 3, wherein a heat-resistant film-like thin film made of a nonmetallic material is attached to the back surface of the peripheral end portion of the top plate.   The induction heating cooker according to any one of claims 1 to 4, wherein the thin film is transparent. A case main body provided with heating means such as an induction heating coil and a radiant heater, and a top plate mounted so as to cover the upper surface of the case main body and having the upper surface as a mounting surface of the cooking container to be heated,
In the built-in configuration in which the case body is housed by dropping on a top plate of a kitchen or the like, and the outer peripheral edge portion of the top plate is arranged on the top plate,
The top plate is integrally formed of heat-resistant glass or ceramic, and a heat-resistant film-like thin film made of a nonmetallic material is attached to the back surface of the top plate except for a surface facing the radiant heater. Induction heating cooker.

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