CN1111436A - Plane Heator for heating cooker - Google Patents
Plane Heator for heating cooker Download PDFInfo
- Publication number
- CN1111436A CN1111436A CN94117383A CN94117383A CN1111436A CN 1111436 A CN1111436 A CN 1111436A CN 94117383 A CN94117383 A CN 94117383A CN 94117383 A CN94117383 A CN 94117383A CN 1111436 A CN1111436 A CN 1111436A
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- China
- Prior art keywords
- insulation board
- thermal insulation
- tabular
- thermal source
- cooking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 77
- 238000009413 insulation Methods 0.000 claims description 112
- 238000010411 cooking Methods 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 description 9
- 239000010445 mica Substances 0.000 description 9
- 229910052618 mica group Inorganic materials 0.000 description 9
- 230000008093 supporting effect Effects 0.000 description 9
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
- H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
A plane heater 17 of heating cooker comprises a matel casing 21, a matel heat shielding plate 22 positted in the matel casing 21 and a plate type heat source 23 which supportted above the hatch of the casing 21 by the heat shielding plate 22. The casing is installed on the heat surface, and the plate type heat source is pushed against the heating surface. The heat shielding plate comprising multiple of projection (cut-and-raised piece) 30 and downwards conification protuberance 33 is supported on the bottom surface of the casing by the protuberance 33 and supports the plate type heat source by the projection 30. Accordingly, the contacting area of the heat shielding plate 22 with the casing and the plate type heat source becomes extremely small, therefore, the amount of heat transferred becomes small and the heat shielding property can be improved.
Description
The present invention relates to the plane heater that the thermal source as the heating cooking device that can bake microwave oven etc. uses.
Can bake the plane heater that is using a kind of fitted outside in the microwave oven, it is used as heat emission face to the bottom surface of the interior case that becomes heating chamber as the downside heater from the downside heated food.
This plane heater is based on tabular thermal source, and this tabular thermal source is made the structure that clips the mica central layer that is wound with nichrome wire with two insulating mica plates in order to insulate with other members.The planar heater of installing on the outer bottom of case in being close to heats this bottom surface, uses the radiant heat from interior case bottom surface to heat the food that is placed in the heating chamber.
Existing plane heater is just like Figure 12 and structure shown in Figure 13, and as Figure 14 and structure shown in Figure 15 two kinds.The plane heater 1 of Figure 12 and Figure 13 is the heat guard 3 of tabular thermal source 2 through the glass fibre formation, is installed in the housing 4 of rectangular vessel shape, and on the case, tabular thermal source 2 promptly is urged on the bottom surface of interior case in this housing 4 being fixed on again.In addition, the structure of Figure 14 and planar heater 5 shown in Figure 15 is, tabular thermal source 2 is installed in the housing 4 through metal thermal insulation board 6, and on the bottom surface of case, tabular thermal source 2 promptly is urged on the bottom surface of interior case in housing 4 being fixed on again.
Again, heat guard 3 and thermal insulation board 6 have the heat conduction of partition to housing 4, and the function on the case bottom surface in tabular thermal source 2 is pressed to.
Figure 12 and plane heater 1 shown in Figure 13 are because its insulation 3 is that glass fibre is made, so good adiabatic function.But because insulation 3 is glass fibres to be built up and to make, so its gauge error is big, during the case bottom surface, pushing force produced difference in tabular thermal source 2 was urged to, make tabular thermal source 2 reach in the heat output of case bottom surface uneven.And when abandoning after plane heater 1 decomposed, the heat guard 3 of glass fibre system is difficult to remake resource and uses, and is non-flame properties, can not burn, and finally becomes non-combustible refuse.
On the other hand, for Figure 14 and plane heater 5 shown in Figure 15, because its thermal insulation board 6 can be not such just like the heat guard 3 of glass fibre scale error, so, tabular thermal source 2 is pushed to the pushing force indifference of interior case bottom surface, therefore, the heat output difference that reaches interior case bottom surface from tabular thermal source 2 is little, and remakes the resource use easily.But metal thermal insulation board 6 is compared with the insulation 3 of glass fibre system, and its conductive coefficient is up to more than 100 times, so, for the thermal insulation board 6 that contacts with tabular thermal source large tracts of land, can make tabular thermal source 2 to the heat output of thermal insulation board 6 increase poor insulation property.
As mentioned above, though because the insulation of glass fibre system 3 thermal insulations are good, finally can become non-combustible refuse, hostile environment, so, preferably avoid using the heat guard 3 of glass fibre system, and adopt metal thermal insulation board 6.Yet, if poor with existing metallic thermal insulation board 6 thermal insulations.Therefore, an urgent demand can be developed the thermal insulation board plane heater of good adiabatic function again that should use metallic plate system.
In view of the foregoing, the objective of the invention is to, a kind of plane heater that can use metal thermal insulation board can guarantee the heating cooking device of good adiabatic function again is provided.
The plane heater of heating cooking device provided by the invention comprises: the metal housing of making flat box-shaped; Be located in this housing, by being pushed against the tabular thermal source on this heating surface on the heating surface that housing is installed in heating cooking device; Be located at the metal thermal insulation board between this tabular thermal source and the above-mentioned housing bottom surface; Be located at support projection portion on this thermal insulation board for supporting above-mentioned tabular thermal source.
In the case, support projection portion has been cut by the shape that tilts at thermal insulation board and perverse of forming constitutes, this perverse because of producing strain with the heating surface butt of tabular thermal source in the lodging direction, because of erecting the recovery elastic force of direction, tabular thermal source can be urged on the heating surface again.In addition, in order to improve the intensity of thermal insulation board, constitute and cut continuously on the roughly whole Width that perverse of this support projection portion be preferably in thermal insulation board and form.
For the heat output that the radiation that reduces from tabular thermal source to thermal insulation board produces as far as possible, can be at the enterprising electroplating of thermal insulation board.In addition,, reduce radiation-induced heat output as far as possible, also the size of space between thermal insulation board and housing bottom surface can be set at less than the size of space between tabular thermal source and thermal insulation board from tabular thermal source to thermal insulation board for limited space.
Because the contact area of the tabular relatively thermal source of thermal insulation board is little, so even thermal insulation board is made with the high metal of conductive coefficient, the heat output that reaches thermal insulation board from tabular thermal source is also few, and thermal insulation is improved.
Brief description:
Fig. 1 is the vertical profile end view that the plane heater part of the present invention the 1st embodiment is shown.
Fig. 2 is the vertical profile end view of whole plane heater.
Fig. 3 is the vertical profile end view along Fig. 2 III-III line part.
Fig. 4 is the exploded perspective view of tabular thermal source.
Fig. 5 is the exploded perspective view of plane heater.
Fig. 6 is for baking the longitudinal section of microwave oven.
Fig. 7 is the figure suitable with Fig. 1 that the present invention the 2nd embodiment is shown.
Fig. 8 is the figure suitable with Fig. 1 that the present invention the 3rd embodiment is shown.
Fig. 9 is the figure suitable with Fig. 1 that the present invention the 4th embodiment is shown.
Figure 10 is the figure suitable with Fig. 1 that the present invention the 5th embodiment is shown.
Figure 11 is the figure suitable with Fig. 1 that the present invention the 6th embodiment is shown.
Figure 12 is the figure suitable with Fig. 5 that existing a kind of plane heater is shown.
Figure 13 is the figure suitable with Fig. 1 of plane heater shown in Figure 12.
Figure 14 is the figure suitable with Fig. 5 that existing another kind of plane heater is shown.
Below referring to figs. 1 through Fig. 6, describe being applicable to the 1st embodiment that bakes microwave oven of the present invention.
The overall structure that can bake microwave oven as shown in Figure 6.In the figure, the 11st, outer container, the 12nd, interior case, inside of case 12 is heating chamber 13 in this.Dispose magnetron 15 so that in heating chamber 13, supply with microwave in the outside portion of interior case 12 through waveguide 14.In addition, be provided with fluorescent tube heater 16 in the upper inner of interior case 12, and on outer bottom, be provided with plane heater 17 of the present invention.This plane heater 17 is made the structure that the bottom surface of interior case 12 is used as heating surface 12a, by the heating of heating surface 12a, is used to take heated food from the radiant heat of this heating surface 12a.
In the bottom of above-mentioned plane heater 17, motor 19 is installed through installing rack 18.The rotating shaft 19a of this motor 19 passes plane heater 17 and stretches out in interior case 12 (heating chamber 13), in the upper end of this rotating shaft 19a turntable 20 is housed.The food that must heat places on this turntable 20, is driven by this turntable 20 to rotate, thereby prevents the inhomogeneous of food heating.
As Fig. 2 and shown in Figure 5, above-mentioned plane heater 17 comprises: form the container-like housing of flattened rectangular 21, be located at the thermal insulation board 22 in this housing 21, and the tabular thermal source 23 of upper position that is positioned at the opening of housing 21 by thermal insulation board 22 supportings.The concrete structure of above-mentioned tabular thermal source 23 as shown in Figure 4, be wound with nichrome wire etc. heating line 24 25 two of mica central layers side by side, in order to make this two killinites central layer 25 and other members insulation, they are clipped in wherein by two insulating mica plates 26.Above-mentioned housing 21 and thermal insulation board 22 are processed by the metallic plate of thinner thickness, and there is the coating of reflection from the radiant heat (infrared ray) of tabular thermal source 23 on its surface, prevent that as far as possible housing 21 and thermal insulation board 22 are by the radiant heat heating from tabular thermal source 23.
Above-mentioned plane heater 17 is fastened on the bottom surface of housing 21 on the mount pad 28 with screw 29 and is mounted, and mount pad 28 be fixed on the downside of heating surface 12a of case 12.Be installed on this mount pad 28 by housing 21, tabular thermal source 23 is urged on the heating surface 12a of interior case 12, and the heat that heating line 24 is sent passes to heating surface 12a.
At this, the supporting structure of the tabular thermal source 23 that adopts thermal insulation board 22 is described.On thermal insulation board 22, as shown in Figure 5, by having cut a plurality of perverse 30 that is processed to form as support projection portion, and, perverse 30 because of the strip parts 32 of having cut 31 of the slotted holes that produce of processing on, be processed to form conical a plurality of projections 33 of giving prominence to downwards by pull and stretch.At this moment, perverse 30 projecting height is set at the projecting height that is higher than projection 33.
Above-mentioned each the perverse 30 roughly whole Width at thermal insulation board 22 cut continuously, and it has been cut state and has been as shown in Figure 1 heeling condition.And perverse 30 upper end bends obliquely to oblique below, forms bent sheet 30a, so kink 30b becomes perverse 30 top, top.
Like this, thermal insulation board 22 is supported on the inner bottom surface of this housing 21 by making its projection 33 and the inner bottom surface butt of housing 21, and is that kink 30b and tabular thermal source 23 butts support this tabular thermal source 23 by making perverse 30 top, top.In the case, the length direction both ends of kink 30b are connected to and are equipped with the position of staggering in the position of heating line 24 with the insulating mica plate 26 of downside as shown in Figure 3.
Here, will be in the distance L between the upper side of the inner bottom surface of the housing 21 under the state before housing 21 is installed in mount pad 28 and tabular thermal source 23
1Be set at greater than the distance L between the heating surface 12a of the downside of mount pad 28 and interior case 12
2Like this, when being installed in housing 21 on the mount pad 28, perverse 30 from state shown in Fig. 1 solid line to the strain of direction generation shown in Fig. 1 arrow A, become state shown in the two point dotted line, and perverse 30 generation is urged to tabular thermal source on the heating surface 12a of interior case 12 from the restorable recovery elastic force of this elastic deformation.At this moment, perverse 30 is not separately to arrow A direction generation strain, but with strip parts 32, the form generation strain that rotates for middle mind-set arrow A direction with projection 33.
Again, in Fig. 5, the 34th, the lead that is connected with the two ends of heating line 24.
If adopt the as above plane heater 17 of structure, can obtain following effect.
At this moment, because thermal insulation board 22 is to be supported on the bottom surface of housing 21 by projection 33, so the contact of thermal insulation board 22 relative housings 21 is in an approximate some state of contact.Therefore, the contact area of thermal insulation board 22 relative housings 21 is also minimum, and the heat that conducts to housing 21 from thermal insulation board 22 is also minimum.
In addition, because thermal insulation board 22 be according to the spacing distance H of tabular thermal source 23
1Greater than with the spacing distance H of itself and housing 21 bottom surfaces
2Mode set.Therefore, in limited space, be radiated to the calorie spread of thermal insulation board 22, and be radiated to the calorie spread of housing 21, can both reduce as far as possible from thermal insulation board 22 from the tabular thermal source 23 of high temperature.At this moment, because on the thermal insulation board 22 coating is arranged, the radiant heat that tabular thermal source 23 sends is reflected by this coating, so the propagation heat from tabular thermal source 23 to thermal insulation board 22 still less.
And, being tilted shape for perverse 30 turns up, when being installed in plane heater 17 on the heating surface 12a, perverse 30 to lodging direction generation strain, because it restores elastic force and tabular thermal source 23 is urged to heating surface 12a, therefore, can remain with suitable plus-pressure tabular thermal source 23 is pressed against state on the heating surface 12a.Therefore, tabular thermal source 23 is improved to the heat conductivity of heating surface 12a, heat transfer efficiency improves.
And, this perverse 30 is to have cut continuously and formed at the roughly whole Width of thermal insulation board 22, so, thermal insulation board 22 intensity enhancing, be attached to the number of the projection 30 on perverse 30, can tabular thermal source 23 be urged to heating surface 12a at perverse 30 whole length direction at least.
On the other hand, because perverse 30 with kink 30b and tabular thermal source 23 butts, the contact site of perverse 30 tabular relatively thermal source 23 is an arc surface.Therefore, different with the situation that only makes the perverse upper end of having been cut and tabular thermal source 23 butts, can not damage the insulating mica plate 26 of tabular thermal source 23 downsides, it is 0.3-0.5mm that thin insulating mica 26(thickness can not take place) break, contact the bad phenomenon that electric leakage accident etc. takes place with heating line 24 for perverse 30.
In addition, at the length direction two ends of kink 30b, the perverse 30 cut-out edge of cutting time-out arranged.But, because the tabular relatively thermal source 23 in the length direction both ends of this kink 30b, be to contact at the position of staggering, configuration position with heating line 24, so, even the cutting shoulder at kink 30b length direction both ends has staved the insulating mica plate 26 of the downside of tabular thermal source 23, perverse 30 can not contact with heating line 24 yet.
Fig. 7 to Figure 11 shows the 2nd to the 6th embodiment of the present invention, and the part identical with Fig. 1 put on identical symbol and described in these accompanying drawings.
In the 2nd embodiment shown in Figure 7, on thermal insulation board 35, being formed with alternately makes progress reaches perverse 37 and perverse 36 that turns up downward vertically.This thermal insulation board 35 is supported on the bottom surface of this housing 21 by making the downward perverse 36 bottom surface butt with housing 21, and perverse 37 that makes progress as support projection portion, by this perverse 37 tabular thermal source 23 of supporting.
In the 3rd embodiment shown in Figure 8, on thermal insulation board 38,, its marginal portion forms pin sheet 39 downwards by being bent, and, upwards vertically turn up a plurality of perverse 40 as support projection portion.This thermal insulation board 38 is supported on this housing 21 by making the pin sheet 39 and the bottom surface butt of housing 21, and by the perverse 40 tabular thermal source 23 of supporting.
In the 4th embodiment shown in Figure 9, on thermal insulation board 41, downwards and upwards alternately drawing and forming has the jut 42 and 43 of platform shape.This thermal insulation board 41 is supported on the bottom surface of this housing 21 by making the protruding downwards jut 42 and the bottom surface butt of housing 21, and convex jut 43 as support projection portion, support tabular thermal source 23 by this jut 43.
In the 5th embodiment shown in Figure 10, drawing and forming has the corrugated part 45 as the support projection portion that projects upwards on thermal insulation board 44.In addition, drawing and forming has the jut 46 of upwards outstanding waveform on the bottom surface of housing 21.Like this, thermal insulation board 44 is supported on housing 21 by being placed on the jut 46, and by the tabular thermal source 23 of corrugated part 47 supportings.
In the 6th embodiment shown in Figure 10, on thermal insulation board 47, alternately drawing and forming has protruding and convex corrugated part 48 and 49 downwards.Therefore, these thermal insulation board 47 sections are roughly waveform.This thermal insulation board 47 is supported on this housing 21 by making the protruding downwards corrugated part 48 and the bottom surface butt of housing 21, and convex corrugated part 49 as support projection portion, support tabular thermal source 23 by this corrugated part 49.
Even make the such structure of above-mentioned the 2nd to the 6th embodiment, both contacts area of thermal insulation board 35,38,41,44,47 tabular relatively thermals source 23 and housing 21 are also all very little, thus the same with above-mentioned the 1st embodiment, can obtain the effect that thermal insulation improves.Especially in the 4th embodiment shown in Figure 9, support tabular thermal source 23, so can not damage the insulating mica plate 26 of downside with the plane upper surface of jut 43.
At this moment, in above-mentioned Fig. 7 and the 2nd and the 3rd embodiment shown in Figure 8, also can be bent to form horizontal plate, support tabular thermal source 23 by this horizontal plate perverse 37,40 top ends.
Again, in the various embodiments described above, the plane heater that is applied to be installed on interior case 12 bottom surfaces (heating surface 12a) is illustrated, but the plane heater of case upper side in also can being applied to be installed in.In addition, also can change buttonhole 27 into be fixed on the housing multidiameter, by the end difference supporting thermal insulation board of this multidiameter.
In addition, the present invention is not limited to as mentioned above and the embodiment shown in the figure, for example, is not limited to bake the plane heater of microwave oven, and can be widely used in the plane heater etc. of common heating cooking pot, in the scope that does not break away from its main points, can do allly to implement after changing.
As mentioned above, if adopt the plane heater of heating cooking device of the present invention, because the member of adiabatic usefulness adopts metal thermal insulation board, so different during from the heat guard that adopts glass fibre system, resource can be utilized again, environment is not had harmful effect, and because in the outstanding support projection section that is provided with of metal thermal insulation board, support tabular thermal source by this support projection section, so thermal insulation board diminishes to the contact area of tabular thermal source, the heat output from tabular thermal source to thermal insulation board reduces, consequently, reach housing and the heat of overflowing outside reduces from tabular thermal source through thermal insulation board, though adopt metal thermal insulation board can obtain outstanding thermal insulation The property.
Plane heater according to heating cooking device of the present invention, thermal insulation board be connected the relative housing of thermal source and can mutually connect movably, so even thermal coefficient of expansion separately is variant, also can absorb, so, can not produce big thermal stress between above-mentioned 3 and deform or damaged.
Plane heater according to heating cooking device of the present invention, perverse of being turned up by heeling condition of the support projection section of thermal insulation board consists of, this perverse because of tabular thermal source and heating surface butt to lodging direction strain, restore elastic force by it tabular thermal source is urged to heating surface, so, tabular thermal source is pressed against on the heating surface by the plus-pressure of appropriateness all the time, can be well to the heating surface transferring heat.
Plane heater according to heating cooking device of the present invention, because being the roughly whole width at thermal insulation board, perverse of consisting of support projection section form, so, even the thermal insulation board thinner thickness, the intensity of thermal insulation board also can improve, and tabular thermal source can be pressed against on the heating surface well.
According to the plane heater of heating cooking device of the present invention, bent because consist of perverse top ends of support projection section, the bend of its bending and tabular thermal source butt be not so tabular thermal source can be damaged because of perverse.
According to the plane heater of heating cooking device of the present invention, because the coating of light reflection usefulness is arranged on the thermal insulation board, so thermal insulation board has further improved thermal insulation because of the heat that the radiation of tabular thermal source is subjected to is few.
Plane heater according to heating cooking device of the present invention, because the size of space of tabular thermal source and thermal insulation board is set at the size of space greater than housing bottom surface and thermal insulation board, so, can be with the heat of the limited radiation propagation of space minimizing from tabular thermal source to thermal insulation board.
Plane heater according to heating cooking device of the present invention, because the length direction both ends of support projection portion butt with it on the position of staggering with heating line configuration position of tabular thermal source, so, even there is the sword limit at the length direction both ends of support projection portion, tabular thermal source has been damaged on this sword limit, support projection portion can the contact heating line yet, the electric leakage accident can not take place.
Claims (13)
1, a kind of plane heater of heating cooking device is characterized in that, it comprises:
Form the metal housing of flat box-shaped;
Be located in this housing, be crimped on tabular thermal source on this heating surface by the heating surface that housing is installed on heating cooking device;
Be located at the metal thermal insulation board between this tabular thermal source and the described housing bottom surface;
On this thermal insulation board, for described tabular thermal source butt, support this tabular thermal source and support projection portion that standing shape is provided with.
2, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, the relative housing with thermal insulation board of described tabular thermal source can free of one anotherly connect movably, so that absorb the poor of thermal expansion.
3, the plane heater of heating cooking device as claimed in claim 1, it is characterized in that, described support projection portion has cut perverse of forming by the shape that tilts at described thermal insulation board and has constituted, this perverse because of tabular thermal source and heating surface butt produce strain in the lodging direction, by its recovery elastic force that erects direction tabular thermal source pressed against on the heating surface.
4, the plane heater of heating cooking device as claimed in claim 3 is characterized in that, constitutes perverse of support projection portion and has cut continuously on the roughly whole Width of thermal insulation board and form.
5, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, is provided with the thermal insulation board butt on the bottom surface of housing, supports the jut of this thermal insulation board.
6, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, is formed with on described thermal insulation board to opposite one of support projection portion side-prominent a plurality of projections, and thermal insulation board is supported on the housing bottom surface by this projection.
7, the plane heater of heating cooking device as claimed in claim 1, it is characterized in that, on described thermal insulation board, be formed with a plurality of mutually to outstanding perverse of opposition side, thermal insulation board by to one side-prominent perverse be supported on the housing bottom surface, and will be to outstanding perverse of opposite side as support projection portion, make itself and tabular thermal source butt.
8, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, the part of described support projection portion and tabular thermal source butt is the plane.
9, as the plane heater of each described heating cooking device in the claim 3,4,6,7, it is characterized in that, constitute perverse top ends bending of support projection portion, the bend and the tabular thermal source butt of this bending usefulness.
10, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, the size of space of thermal insulation board and tabular thermal source is set at the size of space greater than thermal insulation board and housing bottom surface.
11, the plane heater of heating cooking device as claimed in claim 1, it is characterized in that, described thermal insulation board is made section and is roughly waveform, be supported on the bottom surface of housing by the corrugated part that protrudes in a side, at opposite side, the corrugated part that protrudes is made it and tabular thermal source butt as support projection portion.
12, the plane heater of heating cooking device as claimed in claim 1, it is characterized in that, described tabular thermal source clips the heating line by the insulation board of micarex etc. and constitutes, the length direction both ends of support projection portion with tabular thermal source in dispose the heating line the place of staggering, position, with this tabular thermal source butt.
13, the plane heater of heating cooking device as claimed in claim 1 is characterized in that, on the face of the tabular heat source side of described thermal insulation board, the coating of light reflection usefulness is arranged.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259638A JP3020782B2 (en) | 1993-10-18 | 1993-10-18 | Flat heater of cooking device |
| JP259638/1993 | 1993-10-18 | ||
| JP259638/93 | 1993-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1111436A true CN1111436A (en) | 1995-11-08 |
| CN1062707C CN1062707C (en) | 2001-02-28 |
Family
ID=17336844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117383A Expired - Fee Related CN1062707C (en) | 1993-10-18 | 1994-10-18 | Plane Heator for heating cooker |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3020782B2 (en) |
| KR (1) | KR0165699B1 (en) |
| CN (1) | CN1062707C (en) |
| FR (1) | FR2711413B1 (en) |
| GB (1) | GB2282945B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222183A (en) * | 2015-10-20 | 2016-01-06 | 刘万斌 | A kind of commercial induction cooker with detachable panel |
| CN108700305A (en) * | 2016-03-09 | 2018-10-23 | 松下知识产权经营株式会社 | Heating device |
| CN108713124A (en) * | 2016-03-09 | 2018-10-26 | 松下知识产权经营株式会社 | Heating device |
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| JP3408137B2 (en) * | 1998-02-27 | 2003-05-19 | 三洋電機株式会社 | Cooking device |
| EP0852317B1 (en) * | 1998-03-27 | 2003-10-29 | Electrolux AG | Cooking chamber with an air inlet and a heating element arrangement |
| KR100583673B1 (en) * | 2004-06-08 | 2006-05-26 | 한국전기연구원 | Heater for radiating infrared ray with high sensitivity to heat |
| KR100705071B1 (en) * | 2004-08-09 | 2007-04-06 | 엘지전자 주식회사 | Mounting structure of heating element |
| KR100646876B1 (en) * | 2004-08-09 | 2006-11-23 | 엘지전자 주식회사 | Mounting structure of heating element |
| KR100658839B1 (en) * | 2004-08-12 | 2006-12-15 | 엘지전자 주식회사 | Mounting structure of heating element |
| JP4567625B2 (en) * | 2006-03-28 | 2010-10-20 | 三菱電機株式会社 | Dishwasher and sink incorporating this |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR844739A (en) * | 1937-11-16 | 1939-07-31 | Electric hot plate | |
| GB1047013A (en) * | 1962-06-06 | 1966-11-02 | Oatley Technical Dev | Improvements relating to electrically heated boiling and heating plates |
| US3845273A (en) * | 1973-11-28 | 1974-10-29 | Gen Electric | Composite metal plate surface heating unit |
| US4311899A (en) * | 1978-11-17 | 1982-01-19 | E.G.O. Elektro-Gerate, Blanc Und Fischer | Cooking apparatus |
| DE2909238A1 (en) * | 1979-03-09 | 1980-09-11 | Karl Fischer | HEATING ELEMENT FOR HEATING FOOD OR THE LIKE |
| GB2061091B (en) * | 1979-10-23 | 1983-11-30 | Pifco Ltd | Electrically heated cooking pot |
| DE3686735T2 (en) * | 1985-04-15 | 1993-01-28 | Matsushita Electric Ind Co Ltd | HIGH-FREQUENCY HEATER WITH ELECTRICAL HEATER. |
| NL8600989A (en) * | 1986-04-18 | 1987-11-16 | Pol Ovenbouw B V V D | Electric heating element for ovens, dryers or central heating - has two internal reflectors of coated corrugated paper and insulators sealed inside element casing |
| CN2067377U (en) * | 1990-06-12 | 1990-12-12 | 忻赟 | Internal thermal type safety electric cooking stove |
| US5221829A (en) * | 1990-10-15 | 1993-06-22 | Shimon Yahav | Domestic cooking apparatus |
-
1993
- 1993-10-18 JP JP5259638A patent/JP3020782B2/en not_active Expired - Fee Related
-
1994
- 1994-10-06 GB GB9420174A patent/GB2282945B/en not_active Expired - Fee Related
- 1994-10-14 KR KR1019940026289A patent/KR0165699B1/en not_active IP Right Cessation
- 1994-10-18 FR FR9412400A patent/FR2711413B1/en not_active Expired - Fee Related
- 1994-10-18 CN CN94117383A patent/CN1062707C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222183A (en) * | 2015-10-20 | 2016-01-06 | 刘万斌 | A kind of commercial induction cooker with detachable panel |
| CN108700305A (en) * | 2016-03-09 | 2018-10-23 | 松下知识产权经营株式会社 | Heating device |
| CN108713124A (en) * | 2016-03-09 | 2018-10-26 | 松下知识产权经营株式会社 | Heating device |
| CN108713124B (en) * | 2016-03-09 | 2019-11-01 | 松下知识产权经营株式会社 | Heating device |
| CN108700305B (en) * | 2016-03-09 | 2020-01-07 | 松下知识产权经营株式会社 | Heating cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0165699B1 (en) | 1998-12-15 |
| KR950011926A (en) | 1995-05-16 |
| GB2282945B (en) | 1997-09-24 |
| JP3020782B2 (en) | 2000-03-15 |
| FR2711413A1 (en) | 1995-04-28 |
| GB2282945A (en) | 1995-04-19 |
| CN1062707C (en) | 2001-02-28 |
| JPH07113529A (en) | 1995-05-02 |
| FR2711413B1 (en) | 1997-10-24 |
| GB9420174D0 (en) | 1994-11-23 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20010228 Termination date: 20101018 |