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CN101063531B - Induction heating cooker - Google Patents

Induction heating cooker Download PDF

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Publication number
CN101063531B
CN101063531B CN2006101629957A CN200610162995A CN101063531B CN 101063531 B CN101063531 B CN 101063531B CN 2006101629957 A CN2006101629957 A CN 2006101629957A CN 200610162995 A CN200610162995 A CN 200610162995A CN 101063531 B CN101063531 B CN 101063531B
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CN
China
Prior art keywords
top board
film
induction heating
case body
heating cooking
Prior art date
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Expired - Fee Related
Application number
CN2006101629957A
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Chinese (zh)
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CN101063531A (en
Inventor
松尾胜春
近藤正夫
青木政幸
江崎猛
久保田亨
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Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Lifestyle Products and Services Corp
Original Assignee
Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Home Appliances Corp
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Publication of CN101063531A publication Critical patent/CN101063531A/en
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Publication of CN101063531B publication Critical patent/CN101063531B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Electric Stoves And Ranges (AREA)

Abstract

The invention provides a film coating the frameless top plate which is able to effectively prevent the damage by impaction. The case body of the top plate installed on top is put in and accomodated on the table-board of the kitchen. The outer circumference of the top plate is placed overlapped on the outer circumference. The top plate integrates with the heat resistant glass or ceramic. The heat resistant film constituted by nonmetal material from up to side at the end part of the loading surface of the top plate.

Description

Induction heating cooking instrument
Technical field
The present invention relates to a kind of heating and be positioned in the induction heating cooking instrument that is heated cooking-vessel on the top board.
Background technology
In general, in induction heating cooking instrument, in the case body of case shape, constitute pharoids such as being provided with load coil, nichrome wire as heating source, heat the cooking-vessel that is heated on the top board that is positioned in relative upper face side as heater.This induction heating cooking instrument is assembled in the table top (kitchen range top) of whole kitchen etc. by embedded mode, and top board is maintained at the state that protrudes on this table top.This is so-called embedding (De ロ Star プ イ Application) mode, the case body is accommodated in the assemble method the peristome that is formed on the table top from the top.But, because the top board that the sintered glass ceramics by heat-resisting tempered glass system that is widely used usually constitutes is difficult for processing behind crystallization, so will be included in that suction and exhaust ports part that the rear is provided with is used as other parts in all ends of this interior top board frame shape framework covers and fixing with bonding agent etc.Then, this frame shape framework is touched on the opening periphery that is supported on above the table top, perhaps make its circumference that covers top board, and implement processing so that outward appearance good (for example, with reference to patent documentation 1).
But, to be installed on all ends as the framework of other parts as described above, increase the assembling problem in man-hour except existing, not only to consider its appearance design, also can be created in above the top board and end difference that the marginal portion of framework forms can accumulate dirt such as the soup stain of overflowing or when adaptation is bad dirt be difficult to clean such inconvenience from this gap immersion.In addition, this framework is normally metal, in this case in order not scratched by the marginal portion and must to pay close attention to security.
So, proposed to cancel the structure of above-mentioned frame shape framework, promptly only also formed the structure of circumference as no mount structure with glass system top board as this countermeasure.In this case, top board outer peripheral edges portion and overlapping above the table top, thus form end difference in its all end.Yet, can produce following problem, that is, on the table top in kitchen, can frequently carry out the mobile operating of various pots, pan or chopping board, tableware rack etc., can be because cause that with the top board collision of above-mentioned end difference all ends of this top board are broken easily.
Therefore, in technology in the past, proposed a kind of on top board the whole induction heating cooking instrument (for example with reference to patent documentation 2) that attaches the formation of heat-resisting thin plate.According to this induction heating cooking instrument, can utilize the cushioning effect of heat-resisting thin plate to suppress the impact or the anti-sliding stop of pot etc., the electric and magnetic oscillation and the noise that produce in the time of can alleviating the load coil energising in addition.
(patent documentation 1) TOHKEMY 2005-353458 communique
(patent documentation 2) Japanese kokai publication hei 04-2082 communique
Summary of the invention
But; though this for the so-called single function induction heating cooking instrument that has a heater coil as heater effectively; but for the above-mentioned embedded type that is assembled into the kitchen like that; owing to the pot that will on table top, frequently move use, mess kit etc.; certainly just collide end difference easily; and should week the end is not anti-comes from the impact of top or side and be easy to damage, thereby can not protect fully it with above-mentioned structure.And, attach superincumbent thin plate as thin as a wafer, except the object that falls from the top is had the slight resiliency,, can not suppress its special effect for the impact stress to compression direction of top board (glass).
In addition, in the compound heating device that except load coil, also has above-mentioned pharoid etc. as heating source, can not on top board, attach thin plate, therefore can consider in the attaching of the position except the position corresponding, but this existence diminishes appearance design or problem such as easily peels off with this heater.In addition, general coating inorganic coating and make this colouredization of top board (dyeing) or add pattern or demonstrations such as decorative pattern, literal on the surface of top board or the back side.Yet though the particle of this coating anchors on the top board, this not continuous film forming shape of filming is easy to be full of cracks, can not be prevented the stiffening effect of glass breakage etc. fully.
The objective of the invention is to, provide a kind of that be used to address the above problem, do not damage appearance design and can effectively stop the induction heating cooking instrument top board breakage, that have the top board that is coated with the membranaceous film of hear resistance that constitutes by nonmetallic materials that causes by impact.
To achieve these goals, induction heating cooking instrument of the present invention, it is characterized in that: this induction heating cooking instrument is constituted as, have case body and top board, described case body has heaters such as load coil and pharoid, described top board with cover this mode above case body and be mounted and above it as the mounting surface that is heated cooking-vessel; And described case body is accommodated on the table top in kitchen etc. by embedding (falling into), and the outer peripheral edges portion of described top board is configured on the described table top superimposedly; Described top board is integrally formed by heat resistant glass or pottery, and on all ends of the mounting surface of this top board from the top membranaceous film of the hear resistance that constitutes by nonmetallic materials that is coated with to the side.
According to said apparatus, a kind of induction heating cooking instrument can be provided, it has the top board of no frame; can be by the lining of film; for produce on the table top and top board between end difference, special protection week the end can be damaged owing to impact, and can not diminish appearance design.
Description of drawings
Fig. 1 is that the X-X line in Fig. 4 that first embodiment of the invention is shown cuts off and the amplification profile of expression.
Fig. 2 is that induction heating cooking instrument is at the stereoscopic figure that is assembled under the state of kitchen.
Fig. 3 is the profilograph that its general arrangement is shown.
Fig. 4 is its vertical view.
Fig. 5 is the profile that all ends of top board of variation (a) and (b), (c) are shown.
Fig. 6 is the profile that the important document of the second embodiment of the present invention is shown.
Fig. 7 is the figure that the result of the test content is shown.
Symbol description
1: induction heating cooking instrument, 2: table top, 3: the case body, 4,27: top board, 7: pot (being heated cooking-vessel), 8,9,10: heating part, 11,12: load coil (heater), 13 pharoids (heater), 20: flange portion, 21: stiffener, 24: seal, 25,26,29,30,31: film, 28: inclined plane part.
The specific embodiment
(first embodiment)
Below, referring to figs. 1 through Fig. 4 the first embodiment of the present invention is described.
Wherein, Fig. 2 is the stereoscopic figure that for example is assembled with the state of induction heating cooking instrument 1 in the table top 2 of whole kitchen, and Fig. 3 is its profilograph, and Fig. 4 is its vertical view.At first with reference to these accompanying drawing diagrammatic illustration unitary constructions.Induction heating cooking instrument 1 forms the formation of the top board 4 with the case body 3 that makes the rectangular box shape of opening above and mounted thereto.These case body 3 parts are embedded by the peristome 2a (with reference to Fig. 3) that forms from the table top 2 in the kitchen, with the inner face side of the outer peripheral edges portion of top board 4 and the overlapping mode supported (being described in detail afterwards) of opening circumference of table top 2.Have heater described later and air cooling equipment in the inside of this case body 3, and the preceding right side of face in front shown in Figure 2 is provided with the operating surface board guidance panel portion 5 of scale with operating and setting cooking conditions and display part etc., is provided with the Roasting oven device 6 of the sheathed heater (シ one ズ ヒ one タ) that is built-in with figure and does not show in the left side.
On the other hand, constitute the top board 4 above the induction heating cooking instrument 1, with for example transparent integrally formed smooth rectangular plate shape of heat-resisting tempered glass (sintered glass ceramics).In the above, the heating part 8,9,10 of indication mounting portion is for example arranged with typographical display on three positions shown in the circular frame in the drawings, indicate the mounting portion that heating kettle 7 grades are heated cooking-vessel that is suitable for.Wherein, the heating part 8,9 at two positions about the place ahead, can utilize the pot 7 that is heated cooking-vessel in case body 3 as load coil 11, the 12 heating conducts of one of heater that is provided with, the heating part 10 that is positioned at rear central authorities in addition disposes the pharoid 13 and available heater heating kettle 7 grades that for example are made of nichrome wire and is heated cooking-vessel.Thereby, form so-called three mouthfuls of stoves.
Be used for above the top board 4 of heating part, three places 8,9,10 that mounting is heated cooking-vessel so have, at least except the zone with suction and discharge portion (aftermentioned) at rear, be formed tabular surface, and the special formation that has enlarged that on left and right directions, prolongs, so that except above-mentioned heating part 8,9,10, can also use as the broad mounting surface of mounting pot 7 etc.In addition, be respectively arranged with output display part 8a, 9a, 10a in the place ahead of above-mentioned heating part 8,9,10, say that briefly the output (firepower) of the scale operation that can react aforementioned operation panel part 5 shows, and be easy to adjust output.And, at the position, rear of top board 4, about two places form air entry 14 and the exhaust outlet 15 grow crosswise, and the tabular cover of porous 16 is installed in the mode that covers in the above.So suction and exhaust ports the 14, the 15th makes inside and outside connection of case body 3 and as the parts of suction and discharge portion work, and very little end difference makes aforementioned cover parts 16 location and mounting releasably around utilizing.
In addition, section at Fig. 3 there is shown following structure, that is, in case body 3, be equipped with the heater relative, be aforementioned load coil 11 with the heating part 8 on right side in the heating part 8,9,10 that on aforementioned top board 4, forms via coil support members 17.Then, in the following side space of this heater, be equipped with the device that drives this heater of control, and be built-in with formation to the converter printed circuit board (PCB) of the converter (inverter) 18 of aforementioned load coil 11,12 supply high frequency electric currents, based on the control circuit substrate of microcomputer etc.In this aforementioned converter 18, have the febrifacient switch elements such as IGBT that constitute its main circuit as drive unit, and, constitute induction heating apparatus by this drive unit and aforementioned load coil 11 and 12.
Therefore, in above-mentioned induction heating apparatus, be provided with aforementioned air cooling equipment for heat generation switch element and the load coil 11,12 that cools off converter 18 grades.As this air cooling equipment, be provided with the air-supply arrangement 19 shown in 3, obtain atmosphere via aforementioned air entry 14 on the one hand, thereby they are cooled off flowing through enclosure space along the direction of arrow among this figure on the other hand, can be discharged to the outside from aforementioned exhaust outlet 15 then with aforementioned converter 18 and load coil 11,12 as the downstream of discharging side.
Relative therewith, for the aforementioned Roasting oven device 6 that is provided with in the left side of case body 3, be provided with the independent exhaustion device that the cigarette that produces when utilizing aforementioned exhaust outlet 15 cook etc. is discharged to the outside.Say briefly, form another enclosure space with the enclosure space difference of aforementioned converter 18 grades, thereby and air-breathingly from the suitable gap of front face side can utilize convection action will warm up cigarette naturally to discharge.
At this, mainly according to Fig. 1, the assembled configuration that the embedding to table top 2 by aforementioned case body 3 is constituted describes.This Fig. 1 is that the X-X line in Fig. 4 cuts off and the amplification profile that illustrates.The outer peripheral flange portion 20 of case body 3 (full girth also can be discontinuous) rides over above the peristome 2a periphery of table top 2, and the load of bearing case body 3 is assembled induction heating cooking instrument 1 and be supported on the table top 2 thus.And, make it integrated thereby case body 3 and top board 4 integral body are connected via the metal system stiffener 21 of rectangular frame shape.
This stiffener 21, its outer shape is slightly littler also than the profile of top board 4, and formation makes inside be the open frame shape in large rectangle shape ground.That is to say, particularly being formed up to the heater of looking younger for aforementioned three places as shown in Figure 4 and can not covering their open shapes in ground, and form the shape that makes that figure does not show, corresponding position opening with the suction and exhaust ports 14,15 at rear.
And, in the present embodiment with the top smooth horizontal plane that is the frame shape of stiffener 12 as support portion 21a, the nutate sheet at a plurality of positions of vertical curve downwards as fixed part 21b, and is formed the shape that has the recessed 21c of concavity portion on the leading section of above-mentioned support portion 21a downwards.Then, this fixed part 21b is connected on the case body 3 with screw 22, and the 21a of horizontal support portion is engaged with the bonding agent 23 that is filled in the 21c of concavity portion with the state that is close to top board 4 back sides, thus that top board 4 and case body 3 is integrated, simultaneously by being close to rear side, seek the raising of the intensity of the top board 4 that engaged by this stiffener 21.
Like this, be assembled in induction heating cooking instrument 1 in the table top 2 by embedding, become the opening periphery of table top 2 and the overlapped structure of outer peripheral edges portion of top board 4, carry out at this position the support that brings by flange portion 20 and by stiffener 21 that bring with the engaging of top board 4, and then engaged by bonding agent at its outer circumferential side seal (liner) 24 and to be fixed on top board 4 sides.So under this assembled state, sealing part 24 is maintained at compressed a little crimped status, stop water from waterproof action in the gap α immersion that produces between all ends of top board 4 and the table top 2 thereby play.And gap α is as mentioned above in order to be considered to set by flange portion 20 bearing loads, thus the support portion 21a of stiffener 21 following can not touch table top 2 above.
And, on the rectangular-shaped circumference of top board 4, from as be coated with the membranaceous film 25 (representing with heavy line the figure) of hear resistance that constitutes by nonmetallic materials above its surface to the side.This film 25 is to be used as the organic siliconresin of organic property resin or fluororesin applies and sintering processes makes thickness t become 10 microns~90 microns very narrow thickness, thereby formed membranaceous film 25.And, make it in the present embodiment to be overlayed on from as above the surface of top board 4 all ends to the side, become the formation that covering is overlayed on the bight at least of so-called all ends.
Next, the effect of the induction heating cooking instrument 1 of above-mentioned structure is described.
At first, because the common cooking action of induction heating cooking instrument 1 is well-known, so the following simple explanation of only doing.From three heaters, selected, for example the right side with load coil 11 as the heating part 8 of heating source on mounting pot 7, drive via converter 18 drive units such as grade according to the scale operation of operating surface board portion 5 etc., and suitably export to adjust just can begin for example to boil to stew and cook.Simultaneously, the air-supply arrangement 19 that constitutes air cooling equipment also is driven, the atmosphere that will be taken into from air entry 14 direction shown in the arrow along the figure is carried as shown in Figure 3, thus converter 18 with heat generation switch element and load coil 11 etc. is carried out air-cooledly, discharges from exhaust outlet 15 then.
When using induction heating cooking instrument 1 to cook operation like this or on kitchen countertop 2, cooking operation, can be sprinkled upon soup etc. on the top board 4 or the water that uses in the kitchen can be splashed on the top board 4.But, since have in the present embodiment mounting pot 7 grades heating part 8,9,10 as the top of top board 4 because mounting surface, form with the one goods that framework as external components etc. is not installed, so wiping takes out stains simply, and the inconvenience that do not have that dirt accumulates or the edge part that infiltrates framework grades, thereby can keep neat and tidy.
And, cover the membranaceous film 25 of all ends of top board 4, also be as thin as a wafer even for example be made as 50 microns, do not have the ladder that the frame frame produces edge part like that, do not have thus owing to apply this film 25 and produce dirt and undesirable condition such as accumulate.
The various mess kits that can move pot 7 when in addition, in above-mentioned kitchen, cooking operation etc. and comprise chopping board etc.At this moment, the end difference that produces on table top 2 in top board 4, particularly all ends outstanding on the table top 2 is easy to be impacted by collision.But,, impact so can utilize cushioning effect to relax owing to covered by film 25 to the side from top as all ends of the top board 4 of this end difference.Therefore, all ends can be easily not damaged or damaged.
But, even applied that to such an extent as to very large impact is broken or damaged situation under, the fragment of glass also can keep the state that engages with film 25 and not have the situation that finger is cut or fragment splashes, thereby can guarantee security.This is because film 25 is the formation of being filmed membranaceously, can not break easily though approach, and the bonding force of glass has greatly also been played effective function.And then film 25 is transparent in the present embodiment, so the film 25 of top board 4 can not allow the people feel lofty and make mounting surface integral body have same texture.Therefore, outward appearance also can obtain having the good design of glass material gloss attractive in appearance.
Described as described above, have following effect according to present embodiment.
The top board 4 integrally formed with heat-resisting tempered glass constitutes, and on the periphery of the mounting surface of the heating part 8,9,10 with mounting pot etc., utilizes coating sintering to handle and forms and be coated with the membranaceous film 25 of the hear resistance that is made of nonmetallic materials.Because this film 25 is to be made of filming as thin as a wafer of micron unit's level, so do not have the inconvenient situation as metal framework was installed in the past.That is to say, even spill soup on the mounting surface or in the kitchen employed splash on mounting surface, they also can not accumulate in or penetrate into the marginal portion of framework as dirt, and wiping is removed easily, thereby can keep neat and tidy often, and, on top board 4, cook make time spent finger can be not injured and guarantee safety.
Particularly, to cover above all ends form on the side above-mentioned film 25 that is covered, therefore for all ends that easily are vulnerable to greater impact by collision such as pot 7, available buffer is handled this impact, thereby can protect it not damaged or damaged.And, even because of bigger impact causes under the damaged situation, because the film 25 of present embodiment is to be that the material coating sintering forms with organic siliconresin or fluororesin as organic property resin, therefore can form membranaceous film and also very high to bonding force as the glass face of top board 4, even thereby also be effective as suppressing damaged effect, and can prevent effectively that damaged fragment from flying out, be very effective from the viewpoint industry that prevents injured security.Particularly, film 25 is coated in from top to the side, therefore can effectively protects the easiest quilt to impact and easily damaged bight.
And; thereby also there was pair top board coating inorganic coating to seek the example of outward appearance and demonstration emphatically in the past; but; the particle of coating was bonded on the glass face of top board and did not form membranaceous filming in the past; thereby the restraint that opposing is impacted is minimum, also can not get strong protection effect on all ends even it is coated in.And, be made as film 25 transparent in the present embodiment, add that it is very thin, so the part of lining film 25 can not allow the people feel lofty and make integral body obtain same texture on the top board 4, and outward appearance also can obtain having the good design effect of glass material gloss attractive in appearance.
For the foregoing description, Fig. 5 (a) and (b), (c) show the shape as all ends of top board of different distortion example respectively.To additional prosign of part same as the previously described embodiments and omission explanation, different piece is described.
At first, the variation shown in this figure (a) is also the be covered formation of film 26 of so-called like that rear side with all ends of encasing top board 4.Under the situation of this structure, can be tackled the impact that comes from any direction by all ends that film 26 covers, thereby further improve inhibition effect, and even scratched by bight, all ends during the damaged and carrying that also can prevent from effectively when in assembling operation, handling this top board 4 to cause by impact to breakage etc.
Next, this figure (b), (c) are formed with on the circumference of top board 27 the inclined plane part 28 of inclination that descends to foreign side.Wherein, figure (b) is from the example of film 29 that is covered to the side as top inclined plane part 28, crosses the be covered example of film 30 of crest line portion ground that horizontal mounting surface and inclined plane part 28 intersect and scheme (c).
According to the structure that is provided with this inclined plane part 28, the state gradually of inclination descends owing to the bight that becomes the so-called right angle that does not have upper face side, therefore, end difference on the table top that figure does not show is diminished, when being heated cooking-vessel, the pot etc. of taking to alleviate impact thus to this end difference, even and collided the effect that also has the angle of inclination that utilizes inclined plane part 28 that impact is relaxed, thereby the breakage that not only can prevent top board 27 also can realize safe cooking operation.
Particularly in figure (c), the mode that extends to horizontal mounting surface with the crest line of crossing inclined plane part 28 film 30 that is covered.Therefore, though top bight (crest line portion) is not right angle and become the obtuse angle, but still be that the easiest the grade by pot impacted and the position of cracky, so have bigger protection effect as the crest line portion in this bight with film 30 coverings.
And, with the inclined plane part 28 corresponding rear side shown in this figure (b), (c) on, also can be as the figure film that be covered (a).In this case, for example when heavy pot is fallen on the inclined plane part 28, on the inclined plane part 28 that falls as it a little, be compressed the impact stress of direction above it, side then is subjected to the impact stress of back side draw direction overleaf, but the film of rear side plays the effect of impact stress of opposing draw direction, and can be inhibited this impact or damaged effect particularly can effectively be strengthened because the circumference that formation inclined plane part 28 has reduced thickness.
(second embodiment)
Fig. 6,7 shows the accompanying drawing of the second embodiment of the present invention, and wherein Fig. 6 is the profile that contains the main position of pharoid 13, and Fig. 7 shows the result of the test of the stiffening effect of expression film.And the additional prosign of part same as the previously described embodiments also omits explanation, and different piece is described.
Present embodiment forms on the roughly Zone Full of the rear side of top board 27 as shown in Figure 6 and is coated with film 31.
The following describes this structure.At first top board 27 is no mount structures, and with earlier figures 5 (b), the same structure that has inclined plane part 28 in all ends that becomes of (c) disclosed embodiment.And, pharoid 13 as one of heater that is configured in these top board 27 belows, generate heat by making nichrome wire pass through DC current, thereby heating is positioned in pot on the top board 27 etc. and is heated cooking-vessel, and it constitutes, pharoid 13 is configured in the heat insulating container 32 of circular plates shape, and is fixed on case body 3 sides via carriage 33.
Then, film 31, in the same crest line portion ground lining of crossing inclined-plane 28 of upper face side and Fig. 5 of top board 27 (c), and side is overlayed on place except that the face relative with pharoid 13 overleaf.In detail, will be equivalent to the scope (representing with symbol A among the figure) of the area relative or the mounting surface mask suitable and hide and apply, and carry out sintering processes, thereby form and lining film 31 with heating part 10 with heat insulating container 32.
Can obviously find out according to such structure, not only to have aforesaid no frame effect, also the same with each embodiment of above-mentioned Fig. 5 have that the mode that has all ends of inclined plane part 28 with covering is covered film 31 and the effect that obtains.
Under for example heavy pot is fallen as the situation on the mounting surface top board 27 above, fall the upper face side of glass system top board 27 a little in conduct, be compressed the impact stress of direction above, and side overleaf, the back side is subjected to the impact stress of draw direction.But, in the present embodiment because the film 31 that has been covered on the roughly four corner overleaf, so for the impact stress of the draw direction at the above-mentioned back side, membranaceous film 31 can play its effect of opposing, thereby can be inhibited this impact or damaged effect.Therefore, even this film is overlayed on the effect that also can not play opposing compression direction impact stress above the top board, can not get stoping the effect of breakage etc.
Fig. 7 is the figure of this result of the test of expression.Prepare the thick glass plate of 3mm as test specimen, film thickness is 50 microns, and the sharp-pointed hammer of front end (300g) is fallen on the above-mentioned glass face, obtains the critical altitude that makes the glass fragmentation and is this result of the test.Consequently, as ise apparent from FIG. 7, critical altitude is 35cm in example 1 (no film) in the past, is being 50cm in the example 2 (there is film on the surface) relatively therewith in the past.This is because compare the critical altitude that has improved the glass fragmentation owing to the effect of cushioning effect with above-mentioned no film, and for the impact stress that acts on compression direction as previously mentioned, can not confirm the action effect that suppresses it.
And, with present embodiment respective embodiments test specimen (inner face has film) in, critical altitude is 65cm.This is the height that obtains under the situation of cushioning effect to hammer not, therefore as can be known as previously mentioned the resistant function of impact stress how big effect arranged.Therefore, can avoid making top board 27 thickenings to prevent to break etc., thereby suppress end difference outstanding on table top 3 effectively, and manufacturability and assembling operation well also help reducing cost in order to strengthen.
In addition, because the film 31 of inner face side has been removed the position relative with pharoid 13, therefore not only can not hinder the heater heating, though and, then consider preferably to avoid to form and film at this position from security if also consider to be rich in hear resistance but also can to make that a part is rotten, the situation of fusing owing to being heated by heater for a long time.Illustrate in passing, as described in the above-mentioned embodiment during normal use load coil pot etc. can not rise to high temperature, yet in the temperature that the pot of placing is cooked by the such abnormal conditions of the dry combustion method 200 ℃ of degree that can rise.But, having the hear resistance of 250 ℃ of degree as the coated film of the organic siliconresin system of organic property heat-resistant resin of present embodiment, spendable in addition fluororesin is the hear resistance that coated film has 260 ℃ of degree.So,, also can fully tackle by above-mentioned abnormal conditions, be the high temperature heating that the dry combustion method pot causes even do not remove film 31 and this film that is covered for the heater of load coil.But for the quality that keeps using over a long time and from the security consideration of reality in order to obtain long-term reliability, with this load coil opposing backside surface on also not apply this film 31 be effective.
And the present invention is not limited to embodiment above-mentioned and shown in the drawings.For example, be that no mount structure is relative with top board, the zone that is arranged on the air-breathing of rear portion or the suction and discharge portion that exhaust is used also other parts of available other setting constitutes; Top board also can be the pottery system in addition.In addition, membranaceous film is set as transparent, but also translucent or make the color of upper face side and rear side different, can also make up or the like with the top board tone, can carry out various expansions.In addition, can be halogen lamp or the like as the heating source of pharoid, can in the scope that does not break away from purport of the present invention, carry out various changes during enforcement.

Claims (5)

1. induction heating cooking instrument, it is characterized in that, have case body and top board, described case body has load coil and pharoid, described top board with cover this mode above case body and be mounted and with above the top board as the mounting surface that is heated cooking-vessel;
And be that described case body is accommodated in by embedding in the table top in kitchen, with the formation of outer peripheral edges portion overlay configuration on described table top of described top board;
Described top board, integrally formed by heat resistant glass or pottery, and be set as the shape of the inclined plane part that tilts to foreign side's decline above all ends of the mounting surface of this top board, on this inclined plane part, cross crest line portion ground that itself and mounting surface intersect from the top membranaceous film of hear resistance that constitutes by nonmetallic materials that is coated with to the side.
2. induction heating cooking instrument as claimed in claim 1 is characterized in that: the described membranaceous film of hear resistance that is made of nonmetallic materials is to handle and form carry out coating sintering as the organic siliconresin of organic property resin or fluororesin.
3. induction heating cooking instrument as claimed in claim 1 or 2 is characterized in that: the back side in all ends of described top board is coated with the membranaceous film of hear resistance that is made of nonmetallic materials.
4. induction heating cooking instrument as claimed in claim 1 or 2 is characterized in that: described film is transparent.
5. induction heating cooking instrument as claimed in claim 1 is characterized in that: be coated with the membranaceous film of hear resistance that is made of nonmetallic materials on the back side of described top board except the face relative with described pharoid.
CN2006101629957A 2006-04-25 2006-11-30 Induction heating cooker Expired - Fee Related CN101063531B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP120414/2006 2006-04-25
JP2006120414A JP4812507B2 (en) 2006-04-25 2006-04-25 Induction heating cooker

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CN101063531A CN101063531A (en) 2007-10-31
CN101063531B true CN101063531B (en) 2010-05-19

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