CN105050212A - Heating apparatus for heating bottom and top simultaneously and heating method thereof - Google Patents

Heating apparatus for heating bottom and top simultaneously and heating method thereof Download PDF

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Publication number
CN105050212A
CN105050212A CN201510508197.4A CN201510508197A CN105050212A CN 105050212 A CN105050212 A CN 105050212A CN 201510508197 A CN201510508197 A CN 201510508197A CN 105050212 A CN105050212 A CN 105050212A
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heating film
electric radiant
radiant heating
matrix
lower substrate
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颜彬
蒲彦军
徐甜章
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Chengdu Longxin Technology Co Ltd
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Chengdu Longxin Technology Co Ltd
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Abstract

The invention discloses a heating apparatus for heating a bottom and a top simultaneously. The heating apparatus comprises an upper base body (1) and a lower base body (2), wherein the upper base body and the lower base body are arranged oppositely in an up-down mode; and electrothermal films (3) are arranged at the upper surface of the upper base body (1) and the lower surface of the lower base body (2). The electrothermal films are formed by the components of stannic chloride, titanium trichloride, antimony trichloride, calcium chloride, chromic oxide, manganese dioxide, nickelic trioxide, isopropanol, ethanol, and water. After the components are mixed to prepare electrothermal film treating fluid, the electrothermal film treating fluid is sprayed and coated on the surfaces of the heated base bodies; annealing is carried out; and then electrode processing is carried out to obtain electrothermal film finished products. In addition, the invention also discloses a method for carrying out heating by using the heating apparatus. The apparatus and method have the following beneficial effects: shedding is prevented; the upper limit of the temperature of the electrothermal film is enhanced, so that the temperature of the heating base body can rise rapidly; and the maximum surface working temperature can reach 800 to 1000 DEG C, the highest power density can reach 40W/cm<2>, and the service life can reach over 30000 hours.

Description

The heater that a kind of bottom and top are heated simultaneously and heating means
Technical field
The present invention relates to device for heating electric heating membrane technical field, particularly, relate to the heater and heating means that a kind of bottom and top heat simultaneously.
Background technology
The Electric radiant Heating Film of prior art, it is too low that great majority also exist Electric radiant Heating Film surface temperature, and the electrothermal film technology being difficult to the stage of reaching a high temperature realizes, and is only suitable for the working condition with low temperature slow heat; And its heating properties is unstable, use in the course of work long-time, heating power is easily decayed; Electric radiant Heating Film and matrix adhesive force poor, easily come off, the problems such as actual life is short.
In addition, the Electric radiant Heating Film Variable power heating technique of prior art, a kind of energy-saving multi-power electric cooker disclosed in Chinese patent CN1386466A, is connect as the Segmented electrical hotting mask of Heating body and multiple switch by series and parallel, makes electric food warmer form the mode of heating that can realize multiple power.The mode of this Variable power heating also exists the deficiencies such as cost is high, complicated operation, control difficulty are large, be difficult to the homogeneous heating, temperature constant etc. that realize heated substrate, when the high easy gelatinization food of starch cooking content, easily there is the situations such as be burned in the local caused by temperature inequality, half-cooked.
Chinese patent CN1003448C discloses a kind of Electric radiant Heating Film and manufacture method thereof, and the composition and ratio of this Electric radiant Heating Film is butter of tin 40 ~ 50, titanium trichloride 30 ~ 40, trichloride antimony 0.1 ~ 0.3, U-Ramin MC 0.1 ~ 0.3, isopropyl alcohol 2 ~ 3, ethanol 10 ~ 13, water 2 ~ 5; Its maximum power can reach 5KW, and maximum operating temperature can reach 450 DEG C, and power density can make 0.1 ~ 20W/CM 2, have function far infrared radiation function, wavelength is 2.5 ~ 15 microns, reaches more than 5000 hours useful life.
Summary of the invention
The heater that technical problem to be solved by this invention is to provide that a kind of working temperature is high, power density is large, the bottom of long service life and top are heated simultaneously and heating means.
The present invention's adopted technical scheme that solves the problem is:
The heater that bottom and top are heated simultaneously, comprise the upper matrix and lower substrate that are oppositely arranged up and down, the Electric radiant Heating Film that the upper surface of upper matrix and the lower surface of lower substrate are provided with described in Electric radiant Heating Film is made up of the component of following weight ratio:
Butter of tin 30 ~ 50,
Titanium trichloride 0.8 ~ 1.2,
Trichloride antimony 12 ~ 18,
U-Ramin MC 1.5 ~ 2.5,
Chrome green 0.8 ~ 1.2,
Manganese dioxide 0.8 ~ 1.2,
Nickel sesquioxide 0.8 ~ 1.2,
Isopropyl alcohol 8 ~ 12,
Ethanol 3 ~ 5,
Water 20 ~ 30;
Improve the stability of Electric radiant Heating Film by adding antimony, improve the temperature tolerance of Electric radiant Heating Film by adding titanium, improve the infrared emittance of Electric radiant Heating Film by adding nickel and manganese, by adding isopropyl alcohol, improve the adhesive force of Electric radiant Heating Film treatment fluid and matrix.
Further, by selecting titanium trichloride, nickel sesquioxide, manganese dioxide, trichloride antimony in Electric radiant Heating Film formula treatment fluid, improve the Electric radiant Heating Film surface temperature upper limit, make its highest face temperature working temperature can reach 800 ~ 1000 DEG C, heated substrate is rapidly heated, promote firing rate, can the temperature of rapid temperature increases to 800 DEG C in 2 seconds.
Add the titanium trichloride of above-mentioned weight ratio in formula liquid after, itself and other semiconductor alloy element generation chemical reaction, Electric radiant Heating Film is made to be provided with the characteristic of the titaniums such as intensity is high, corrosion resistance good, thermal endurance is high, the heat resistance of Electric radiant Heating Film obtains great lifting, can bear the high temperature of more than 1000 DEG C, big current, and performance there will not be damage.Thus ability Electric radiant Heating Film being reached use under the high temperature conditions, improve firing rate, the surface heating-up time shortens, and greatly improves thermal conversion efficiency and heating time.
Add nickel sesquioxide, manganese dioxide in formula liquid after, the infrared emittance of high-temperature electric heating membrane in heating work process is improved.After simultaneously adding trichloride antimony in formula liquid, substantially increase the boiling point of Electric radiant Heating Film, make its completely water insoluble or other weak acid or weak base liquid, enhance stability and the durability of Electric radiant Heating Film.
The preparation method of described Electric radiant Heating Film is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix and lower substrate to be delivered in heating cavity respectively, temperature in heating cavity controls at 400 DEG C ~ 700 DEG C, after upper matrix and lower substrate being heated to 400 DEG C ~ 700 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix in heating cavity and lower substrate respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 1kg/cm 2~ 2kg/cm 2, Electric radiant Heating Film surface can be made more level and smooth, and the distance of lance outlet distance matrix is 0.4m ~ 0.8m, and can ensure that matrix surface has good tin ash deposition, injecting time is 20s ~ 30s, can ensure that the resistivity of Electric radiant Heating Film reaches pre-provisioning request; Matrix is heated, the resistance of Electric radiant Heating Film can be made more even, make it have good conductance;
S3, annealing, send into described upper matrix and lower substrate in heating cavity, temperature to 300 in heating cavity DEG C ~ 550 DEG C, annealing 15min ~ 20min; The present invention, by annealing to half-finished product of electric heating film, can make Electric radiant Heating Film treatment fluid more firmly be attached on matrix;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole, obtain Electric radiant Heating Film finished product.
Described upper matrix and the material of lower substrate can be devitrified glass, crystal glass, high-boron-silicon glass, refractory ceramics, and the metal base such as aluminium alloy, stainless steel.
Preferably, described upper matrix and lower substrate adopt devitrified glass to make.Add isopropyl alcohol in Electric radiant Heating Film treatment fluid after, main Semiconductor Chemistry material during Electric radiant Heating Film is formed, with the key component such as the very thin layer of silicon dioxide in Pyroceram material heated substrate surface, under the calcining of 400 DEG C ~ 700 DEG C of high temperature, slowly there is chemical reaction in surface, the molecule on the main component of Electric radiant Heating Film and devitrified glass top layer is interpenetrated, between high-temperature electric heating membrane and devitrified glass surface, form one firmly netted lattice chemical constitution, firmly and be closely attached to heated substrate surface completely, greatly improve the adhesive ability of Electric radiant Heating Film on heated substrate surface, avoid traditional electrical hotting mask coating and in use hold caducous problem.
On the other hand, by high-temperature electric heating membrane application of the present invention when the lower surface of the upper surface of upper matrix and lower substrate, according to product actual conditions needs, effectively can be attached to plane, curved surface or other ripples, honeycomb, the irregular surface such as concavo-convex, good application technology effect can be brought respectively.
Electric conversion efficiency of the present invention reaches more than 95%, according to each field actual conditions needs such as industrial, civilian, agriculture, national defence, heating power is maximum reaches more than 100kW, and highest face temperature working temperature can reach 800 ~ 1000 DEG C, and power density can reach 40W/cm 2, have far red light wave energy human body being had to " bio-resonance " medicinal health care function, its far infrared wavelength is 4 ~ 16 microns, reaches more than 30000 hours useful life.
The upper surface of described upper matrix is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile, and the lower surface of described lower substrate is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile.
When adopting existing Electric radiant Heating Film formula slurry and existing production technology to process Electric radiant Heating Film on the matrix of above-mentioned nonplanar structure, inventor finds that existing Electric radiant Heating Film formula slurry and existing production technology are still difficult to realize the production and processing of curved surface or other irregular surfaces such as ripple, honeycomb, and the present invention then well solves above-mentioned technical barrier.
Concrete, when described upper matrix for dull and stereotyped, its upper surface be plane time, Electric radiant Heating Film is arranged at the upper surface of this planar shaped.
Selectable, also can process uniform honeycomb hole by the upper surface of matrix on plate, and then in upper surface processing Electric radiant Heating Film.
When described lower substrate for dull and stereotyped, its bottom surface and lower surface be plane time, Electric radiant Heating Film is arranged at the lower surface of this planar shaped.
Selectable, also can process uniform honeycomb hole at the lower surface of plate lower substrate, and then in lower surface processing Electric radiant Heating Film.
The formula adopted due to the present invention and technique makes Electric radiant Heating Film and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability is made to affect less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.The surface that Electric radiant Heating Film and described uniform honeycomb are cheated is good, stable bond, and the setting in honeycomb hole increases the area of heating film, thus increases the heating surface area of matrix, improves the efficiency of heating surface, and homogeneous heating.The Electric radiant Heating Film be arranged on the upper surface of matrix and the lower surface of lower substrate can be the continuous level that is covered on described surface or is arranged at the bar shaped on described surface by definite shape, when Electric radiant Heating Film is bar shaped, it can be snakelike or annular or the setting of variable curvature shaped form at described surface, and surface described above refers to the upper surface of matrix and the lower surface of lower substrate.
When described upper matrix is concave plate, when its upper surface is the inner concave shape curved surface of upwards intrinsic silicon depression, the formula adopted due to the present invention and technique make Electric radiant Heating Film and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability affects less by upper body upper surface shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film and upper matrix inner concave shape curved surface are good, after stable bond, in heating process, inner concave shape curved surface increase heating and area of dissipation, heat by the radiation effects of inner concave, by dispersion heat constantly to center convergence, make central temperature far above both sides temperature, programming rate is fast, and heating time is short, and heat-transfer effect is high and heating is more even, be easy to the accurate control of heating, be applicable to the application scenario that civilian, commercial, industrial circle etc. needs Fast Heating liquid.
When described lower substrate is upper notch plate, when its lower surface is the inner concave shape curved surface of downward intrinsic silicon depression, the formula adopted due to the present invention and technique make Electric radiant Heating Film and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability affects less by lower substrate underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film and inner concave shape curved surface are good, after stable bond, in heating process, inner concave shape curved surface increase heating and area of dissipation, heat by the radiation effects of inner concave, by dispersion heat constantly to center convergence, make central temperature far above both sides temperature, programming rate is fast, and heating time is short, and heat-transfer effect is high and heating is more even, be easy to the accurate control of heating, be applicable to the application scenario that civilian, commercial, industrial circle etc. needs Fast Heating liquid.
When described upper matrix is convex-shaped plate, when its upper surface is the male type curved surface of upwards matrix outer projection, the formula adopted due to the present invention and technique make Electric radiant Heating Film and upper matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability affects less by upper body upper surface shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film and male type curved surface are good, after stable bond, in heating process, heat is by the radiation effects of male type curved surface, heat is constantly dispersed to surrounding, make the effective heating surface (area) (HS of heated substrate larger, heating face temperature evenly, be applicable to as electric bakeware, baking box etc. require high application scenario to temperature homogeneity, when effectively can solve its baking burning or decoct roast food, inconsistent the waiting of cooking level affects the problem of food mouthfeel and culinary art effect.
When described lower substrate is lower convex plate, when its lower surface is the male type curved surface to the outer projection of lower substrate, the formula adopted due to the present invention and technique make Electric radiant Heating Film and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability affects less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film and male type curved surface are good, after stable bond, in heating process, heat is by the radiation effects of male type curved surface, heat is constantly dispersed to surrounding, make the effective heating surface (area) (HS of heated substrate larger, heating face temperature evenly, be applicable to as electric bakeware, baking box etc. require high application scenario to temperature homogeneity, when effectively can solve its baking burning or decoct roast food, inconsistent the waiting of cooking level affects the problem of food mouthfeel and culinary art effect.
When described upper matrix be corrugated sheet, its upper surface be corrugated profile time, the ripple of described corrugated sheet distributes ringwise, and the ripple of described corrugated sheet is arc or zigzag.The formula adopted due to the present invention and technique makes Electric radiant Heating Film and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability is made to affect less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.Electric radiant Heating Film and corrugated profile good, after stable bond, the efficient heat generation area of body upper surface on this is increased further, the temperature homogeneity of upper matrix promotes further, heat-transfer effect is good, be heated evenly, thus effectively avoid cooking food to stick in the bottom of a pan, reach non-stick pan, the object of Non-burnt pot, compare the existing non-stick pan that non-viscous paint is set in the bottom of a pan, , there will not be and very easily cause the chemical substances such as non-viscous paint wearing and tearing and heavy metal separate out and affect healthy by metal objects such as metal slices, the problem of useful life and result of use, and it is long to have the life-span, cost is low, without advantages such as chemical substance seepages.Meanwhile, the upper basal body structure of corrugated sheet also makes the upper surface of heater increase the contact area with air, after stopping heating, and can quick heat radiating.
When described lower substrate be corrugated sheet, its lower surface be corrugated profile time, the ripple of described corrugated sheet distributes ringwise, and the ripple of described corrugated sheet is arc or zigzag.The formula adopted due to the present invention and technique makes Electric radiant Heating Film and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film, useful life, Electric radiant Heating Film stability is made to affect less by lower substrate underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.Electric radiant Heating Film and corrugated profile are good, after stable bond, the efficient heat generation area of this lower substrate lower surface is increased further, the temperature homogeneity of lower substrate promotes further, heat-transfer effect is good, be heated evenly, thus effectively avoid cooking food to stick in the bottom of a pan, reach the object of non-stick pan, Non-burnt pot, compare the existing non-stick pan that non-viscous paint is set in the bottom of a pan, there will not be and very easily cause non-viscous paint to wear and tear by metal objects such as metal slices and affect the problem of useful life and result of use, the life-span is long, cost is low.Meanwhile, the lower substrate structure of corrugated sheet also makes the lower surface of heater increase the contact area with air, after stopping heating, and can quick heat radiating.
Described upper body upper surface and the Electric radiant Heating Film of lower substrate lower surface can be the planar shaped or curved surface shaped that cover described surface.The Electric radiant Heating Film of this structure is planar heating, and heating face is large, is applicable to the occasion that heating area is large.Described upper body upper surface and the Electric radiant Heating Film of lower substrate lower surface also can be bar shaped, and described bar shaped Electric radiant Heating Film is snakelike or annular or the setting of variable curvature shaped form at body upper surface and lower substrate lower surface.
The Electric radiant Heating Film adopting formula of the present invention and technique to make can realize higher thermal conversion efficiency, stability, and the useful life that high adhesion force brings extends.
To be plane and curved surface be described Electric radiant Heating Film that what to correspond respectively to body upper surface and lower substrate lower surface is plane and nonplanar situation.Because Electric radiant Heating Film fits with upper body upper surface and lower substrate lower surface respectively, thus when upper body upper surface and lower substrate lower surface are plane, then Electric radiant Heating Film is continuous print plane; And when upper body upper surface and lower substrate lower surface be the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile time, Electric radiant Heating Film is then continuous print inner concave shape curved surface, male type curved surface or corrugated profile.
When Electric radiant Heating Film is applied to planar shaped or curved surface shaped, heated substrate efficient heat generation area can be made to increase, matrix heating evenly, heat is passed to matrix by Electric radiant Heating Film, and stop the rear rapid heat dissipation of heating, it is wide that it has utilization in electric heating product development, quick heating, heat the advantages such as fast, be applicable to be the electric heating electrothermal film technology application products such as the device of plane (as pan, baking tray, electric baking pan etc.), and agricultural greenhouse booth, industrial cubic water tank bottom field of household appliances heating appliances.
No matter the Electric radiant Heating Film of planar shaped or curved surface shaped, or the Electric radiant Heating Film of bar shaped, the described Electric radiant Heating Film being arranged at body upper surface can be the Electric radiant Heating Film with same resistivity, also can be to be connected by the Electric radiant Heating Film of two or more different resistivity to be formed; The Electric radiant Heating Film being arranged at lower substrate lower surface can be the Electric radiant Heating Film with same resistivity, also can be to be connected by the Electric radiant Heating Film of two or more different resistivity to be formed.When the Electric radiant Heating Film on upper body upper surface or lower substrate lower surface by the Electric radiant Heating Film of the different resistivity of two kinds or more connect formed time, the high temperature resistance film of two or more different resistivity is set in the zones of different on described surface, link together in the mode of series circuit again, only need a way switch, realize the region Variable power heating technique of low cost, high efficiency, homogeneous heating, temperature constant.
The subregion resistive film heating technique of this different resistivity, namely according to the needs of heater processing, needing the position of improving the efficiency of heating surface, the large Electric radiant Heating Film of resistivity is set, and needing the position reducing the efficiency of heating surface that the little Electric radiant Heating Film of resistivity is set, then the Electric radiant Heating Film at each position is linked together in the mode of series circuit.
For described bar shaped Electric radiant Heating Film, the density can also arranged in upper body upper surface or lower substrate lower surface region by changing bar shaped Electric radiant Heating Film changes heating power, in the position needing the raising efficiency of heating surface, namely passed through the method for the layout density increasing this position inner stripe Electric radiant Heating Film by the spacing reduced between bar shaped Electric radiant Heating Film, improve the efficiency of heating surface at this position; And needing the position reducing the efficiency of heating surface by increasing the spacing of bar shaped Electric radiant Heating Film namely by reducing the method for the layout density of this position inner stripe Electric radiant Heating Film, reduce the efficiency of heating surface at this position.
Use the subregion resistive film heating technique of different resistivity, can solve because heating appliances is along with the rising of heating-up temperature, heat is constantly toward center convergence, and cause center local temperature too high, the food caused is charred, be burned etc. affects the problem that user cooks experience.Particularly, can adopt with the middle part of lower substrate lower surface the Electric radiant Heating Film that resistivity is less in the middle part of upper body upper surface, and adopt in the periphery of upper body upper surface periphery and lower substrate lower surface the Electric radiant Heating Film that resistivity is larger, thus avoid the generation of the too high phenomenon of middle part local temperature, ensure that the homogeneous heating of whole heating region, enhance the culinary art effect of food.
Adopt the high-temperature electric heating membrane of the different resistivity arranged subregion to connect in the mode of series circuit, only need a way switch to control, the region Variable power heating of high efficiency, homogeneous heating, temperature constant can be realized.Eliminate conventional art owing to arranging the structure member of multichannel heated by electrothermal film branch road, and electronic circuit device cost.Solve small household appliances Portable small, low cost, high efficiency problem.
The method that the heater that bottom described in employing and top are heated simultaneously carries out heating is: the both positive and negative polarity of power supply is connected with the access contact of the access contact of the Electric radiant Heating Film of upper body upper surface and the Electric radiant Heating Film of lower substrate lower surface respectively, the access contact of Electric radiant Heating Film is placed on the galactic pole of Electric radiant Heating Film respectively, after the Electric radiant Heating Film of upper body upper surface and the Electric radiant Heating Film of lower substrate lower surface switch on power, electric energy is directly converted to the outside dissipate heat of heat energy by Electric radiant Heating Film, thus the upper matrix of heating and lower substrate, the material be contained between upper matrix and lower substrate is heated by upper matrix and lower substrate simultaneously.
To sum up, the invention has the beneficial effects as follows:
1, the present invention adopt Electric radiant Heating Film component and processing technology, can make to be combined into one with the chemical bond form changing netted lattice structure between Electric radiant Heating Film and base material, difficult drop-off, physical and chemical performance is good, and improve the Electric radiant Heating Film surface temperature upper limit, make heated substrate rapid temperature increases, improve firing rate and electric conversion efficiency.
2, electric conversion efficiency of the present invention reaches more than 95%, and power density can reach 40W/cm 2, heating power is maximum reaches more than 100kW, and can meet each field such as industry, civilian, agriculture, national defence and use needs, highest face temperature working temperature can reach 800 ~ 1000 DEG C, has function far infrared radiation function, reaches more than 30000 hours useful life.
3, enhance semiconductor thermoelectric film stability under working conditions, reduce power attenuation, solve the problem of industry Electric radiant Heating Film poor adhesive force, improve Electric radiant Heating Film useful life.
4, the stable coating of the Electric radiant Heating Film of the irregular surfaces such as curved surface, corrugated surface, honeycomb is realized at matrix surface.
5, there is the function of the zones of different otherness heating power of the same surface electrical hotting mask of heated substrate, reduce unnecessary thermal loss, promote heated by electrothermal film power density and temperature homogeneity, thus effectively avoid cooking food to be pasted onto the bottom of a pan etc. being burned phenomenon.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is another kind of structural representation of the present invention;
Fig. 3 is the third structural representation of the present invention;
Fig. 4 is the 4th kind of structural representation of the present invention;
Fig. 5 is the 5th kind of structural representation of the present invention;
Fig. 6 is the 6th kind of structural representation of the present invention;
Fig. 7 is the 7th kind of structural representation of the present invention;
Fig. 8 is the 8th kind of structural representation of the present invention;
Fig. 9 is the 9th kind of structural representation of the present invention;
Figure 10 is the of the present invention ten kind of structural representation;
Figure 11 is the 11 kind of structural representation of the present invention;
Figure 12 is the 12 kind of structural representation of the present invention;
Figure 13 is the 13 kind of structural representation of the present invention;
Figure 14 is the 14 kind of structural representation of the present invention;
Figure 15 is the 15 kind of structural representation of the present invention;
Figure 16 is the 16 kind of structural representation of the present invention;
Figure 17 is the 17 kind of structural representation of the present invention;
Figure 18 is the 18 kind of structural representation of the present invention;
Figure 19 is the 19 kind of structural representation of the present invention;
Figure 20 is the 20 kind of structural representation of the present invention;
Figure 21 is the 21 kind of structural representation of the present invention;
Figure 22 be the bar shaped Electric radiant Heating Film of a kind of different resistivity of the present invention structural representation is set;
Figure 23 be the bar shaped Electric radiant Heating Film of another kind of different resistivity of the present invention structural representation is set;
Figure 24 is Electric radiant Heating Film and electrode and accesses contact syndeton schematic diagram.
Mark and corresponding parts title in accompanying drawing:
The upper matrix of 1-, 2-lower substrate, 3-Electric radiant Heating Film, 4-galactic pole, 5-accesses contact.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, the heater that a kind of bottom and top are heated simultaneously, comprise the upper matrix 1 and lower substrate 2 that are oppositely arranged up and down, the Electric radiant Heating Film 3 that the upper surface of upper matrix 1 and the lower surface of lower substrate 2 are provided with described in Electric radiant Heating Film 3 is made up of the component of following weight ratio:
Butter of tin 30 ~ 50,
Titanium trichloride 0.8 ~ 1.2,
Trichloride antimony 12 ~ 18,
U-Ramin MC 1.5 ~ 2.5,
Chrome green 0.8 ~ 1.2,
Manganese dioxide 0.8 ~ 1.2,
Nickel sesquioxide 0.8 ~ 1.2,
Isopropyl alcohol 8 ~ 12,
Ethanol 3 ~ 5,
Water 20 ~ 30;
Improve the stability of Electric radiant Heating Film 3 by adding antimony, improve the temperature tolerance of Electric radiant Heating Film 3 by adding titanium, improve the infrared emittance of Electric radiant Heating Film 3 by adding nickel and manganese, by adding isopropyl alcohol, improve the adhesive force of Electric radiant Heating Film treatment fluid and matrix.
Further, titanium trichloride, nickel sesquioxide, manganese dioxide, trichloride antimony is selected in filling a prescription treatment fluid in Electric radiant Heating Film 3, improve the Electric radiant Heating Film 3 surface temperature upper limit, make its highest face temperature working temperature can reach 800 ~ 1000 DEG C, heated substrate is rapidly heated, promote firing rate, can the temperature of rapid temperature increases to 800 DEG C in 2 seconds.
Add the titanium trichloride of above-mentioned weight ratio in formula liquid after, itself and other semiconductor alloy element generation chemical reaction, Electric radiant Heating Film 3 is made to be provided with the characteristic of the titaniums such as intensity is high, corrosion resistance good, thermal endurance is high, the heat resistance of Electric radiant Heating Film 3 obtains great lifting, can bear the high temperature of more than 1000 DEG C, big current, and performance there will not be damage.Thus make Electric radiant Heating Film 3 reach the ability used under the high temperature conditions, improve firing rate, the surface heating-up time shortens, and greatly improves thermal conversion efficiency and heating time.
Add nickel sesquioxide, manganese dioxide in formula liquid after, the infrared emittance of high-temperature electric heating membrane 3 in heating work process is improved.After simultaneously adding trichloride antimony in formula liquid, substantially increase the boiling point of Electric radiant Heating Film 3, make its completely water insoluble or other weak acid or weak base liquid, enhance stability and the durability of Electric radiant Heating Film 3.
The preparation method of described Electric radiant Heating Film 3 is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix 1 and lower substrate 2 to be delivered in heating cavity respectively, temperature in heating cavity controls at 400 DEG C ~ 700 DEG C, after upper matrix 1 and lower substrate 2 are heated to 400 DEG C ~ 700 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix 1 in heating cavity and lower substrate 2 respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 1kg/cm 2~ 2kg/cm 2, Electric radiant Heating Film 3 surface can be made more level and smooth, and the distance of lance outlet distance matrix is 0.4m ~ 0.8m, and can ensure that matrix surface has good tin ash deposition, injecting time is 20s ~ 30s, can ensure that the resistivity of Electric radiant Heating Film 3 reaches pre-provisioning request; Matrix is heated, the resistance of Electric radiant Heating Film 3 can be made more even, make it have good conductance;
S3, annealing, send in heating cavity by described upper matrix 1 and lower substrate 2, temperature to 300 in heating cavity DEG C ~ 550 DEG C, annealing 15min ~ 20min; The present invention, by annealing to half-finished product of electric heating film, can make Electric radiant Heating Film treatment fluid more firmly be attached on matrix;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole 4, obtain Electric radiant Heating Film 3 finished product.
With several embodiment, the component proportion of Electric radiant Heating Film 3 of the present invention and the preparation method of Electric radiant Heating Film 3 are further described below:
Electric radiant Heating Film example 1:
Described Electric radiant Heating Film 3 is made up of the component of following weight ratio:
Butter of tin 40, titanium trichloride 1, trichloride antimony 15, U-Ramin MC 2, chrome green 1, manganese dioxide 1, nickel sesquioxide 1, isopropyl alcohol 10, ethanol 4, water 25;
Its preparation method is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix 1 and lower substrate 2 to be delivered in heating cavity respectively, temperature in heating cavity controls at 600 DEG C, after upper matrix 1 and lower substrate 2 are heated to 600 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix 1 in heating cavity and lower substrate 2 respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 1.5kg/cm 2, Electric radiant Heating Film 3 surface can be made more level and smooth, and the distance of lance outlet distance matrix is 0.6m, and can ensure that matrix surface has good tin ash deposition, injecting time is 25s, can ensure that the resistivity of Electric radiant Heating Film 3 reaches pre-provisioning request; Matrix is heated, the resistance of Electric radiant Heating Film 3 can be made more even, make it have good conductance;
S3, annealing, send in heating cavity by described upper matrix 1 and lower substrate 2, the temperature to 400 DEG C in heating cavity, annealing 18min; The present invention, by annealing to half-finished product of electric heating film, can make Electric radiant Heating Film treatment fluid more firmly be attached on matrix;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole 4, obtain Electric radiant Heating Film 3 finished product.
Electric radiant Heating Film example 2:
Described Electric radiant Heating Film 3 is made up of the component of following weight ratio:
Butter of tin 30, titanium trichloride 1.2, trichloride antimony 12, U-Ramin MC 1.5, chrome green 1.2, manganese dioxide 0.8, nickel sesquioxide 1.2, isopropyl alcohol 8, ethanol 5, water 20;
Its preparation method is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix 1 and lower substrate 2 to be delivered in heating cavity respectively, temperature in heating cavity controls at 400 DEG C, after upper matrix 1 and lower substrate 2 are heated to 400 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix 1 in heating cavity and lower substrate 2 respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 2kg/cm 2, Electric radiant Heating Film 3 surface can be made more level and smooth, and the distance of lance outlet distance matrix is 0.4m, and can ensure that matrix surface has good tin ash deposition, injecting time is 30s, can ensure that the resistivity of Electric radiant Heating Film 3 reaches pre-provisioning request; Matrix is heated, the resistance of Electric radiant Heating Film 3 can be made more even, make it have good conductance;
S3, annealing, send in heating cavity by described upper matrix 1 and lower substrate 2, the temperature to 550 DEG C in heating cavity, annealing 20min; The present invention, by annealing to half-finished product of electric heating film, can make Electric radiant Heating Film treatment fluid more firmly be attached on matrix;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole 4, obtain Electric radiant Heating Film 3 finished product.
Electric radiant Heating Film example 3:
Described Electric radiant Heating Film 3 is made up of the component of following weight ratio:
Butter of tin 50, titanium trichloride 0.8, trichloride antimony 18, U-Ramin MC 2.5, chrome green 0.8, manganese dioxide 1.2, nickel sesquioxide 0.8, isopropyl alcohol 12, ethanol 3, water 30;
Its preparation method is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix 1 and lower substrate 2 to be delivered in heating cavity respectively, temperature in heating cavity controls at 700 DEG C, after upper matrix 1 and lower substrate 2 are heated to 700 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix 1 in heating cavity and lower substrate 2 respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 1kg/cm 2, Electric radiant Heating Film 3 surface can be made more level and smooth, and the distance of lance outlet distance matrix is 0.8m, and can ensure that matrix surface has good tin ash deposition, injecting time is 20s, can ensure that the resistivity of Electric radiant Heating Film 3 reaches pre-provisioning request; Matrix is heated, the resistance of Electric radiant Heating Film 3 can be made more even, make it have good conductance;
S3, annealing, send in heating cavity by described upper matrix 1 and lower substrate 2, the temperature to 300 DEG C in heating cavity, annealing 15min; The present invention, by annealing to half-finished product of electric heating film, can make Electric radiant Heating Film treatment fluid more firmly be attached on matrix;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole 4, obtain Electric radiant Heating Film 3 finished product.
Adopt the heater of above-mentioned Electric radiant Heating Film example 1 ~ 3, highest face temperature working temperature can reach 800 ~ 1000 DEG C after testing, can the temperature of rapid temperature increases to 800 DEG C in 2 seconds, and thermal conversion efficiency reaches more than 95%, heating power is maximum reaches more than 100kW, and power density can reach 40W/cm 2, reach more than 30000 hours useful life.
On the basis of the above, adopt upper matrix 1, lower substrate 2 and Electric radiant Heating Film structure to be described further to the present invention below, and the heater of following upper matrix 1, lower substrate 2 and Electric radiant Heating Film structure all can adopt Electric radiant Heating Film and the Electric radiant Heating Film preparation method of above-mentioned formula.
Described upper matrix 1 and the material of lower substrate 2 can be devitrified glass, crystal glass, high-boron-silicon glass, refractory ceramics, and the metal base such as aluminium alloy, stainless steel.
Preferably, described upper matrix 1 and lower substrate 2 adopt devitrified glass to make.Add isopropyl alcohol in Electric radiant Heating Film treatment fluid after, main Semiconductor Chemistry material during Electric radiant Heating Film 3 is formed, with the key component such as the very thin layer of silicon dioxide in Pyroceram material heated substrate surface, under the calcining of 400 DEG C ~ 700 DEG C of high temperature, slowly there is chemical reaction in surface, the molecule on the main component of Electric radiant Heating Film 3 and devitrified glass top layer is interpenetrated, between high-temperature electric heating membrane 3 and devitrified glass surface, form one firmly netted lattice chemical constitution, firmly and be closely attached to heated substrate surface completely, greatly improve the adhesive ability of Electric radiant Heating Film 3 on heated substrate surface, avoid traditional electrical hotting mask 3 coating and in use hold caducous problem.
On the other hand, by high-temperature electric heating membrane 3 application of the present invention when the lower surface of the upper surface of upper matrix 1 and lower substrate 2, according to product actual conditions needs, effectively can be attached to plane, curved surface or other ripples, honeycomb, the irregular surface such as concavo-convex, good application technology effect can be brought respectively.
Electric conversion efficiency of the present invention can reach more than 95%, and power density can reach 40W/cm 2heating power is maximum reaches more than 100kW, each field such as industry, civilian, agriculture, national defence can be met and use needs, highest face temperature working temperature can reach 800 ~ 1000 DEG C, there is far red light wave energy human body being had to " bio-resonance " medicinal health care function, its far infrared wavelength is 4 ~ 16 microns, reaches more than 30000 hours useful life.
As shown in Fig. 5, Fig. 2, Fig. 1, Fig. 6, the upper surface of described upper matrix 1 is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile, as shown in Fig. 3, Fig. 2, Fig. 1, Fig. 6, the lower surface of described lower substrate 2 is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile.
Described upper matrix 1 can be flat board or concave plate or convex-shaped plate or corrugated sheet, then the upper surface going up matrix 1 is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile;
Described lower substrate 2 can be dull and stereotyped or upper notch plate or lower convex plate or corrugated sheet, then the lower surface of lower substrate 2 is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile.
When adopt existing Electric radiant Heating Film 3 fill a prescription slurry and existing production technology on the matrix of above-mentioned nonplanar structure, process Electric radiant Heating Film 3 time, inventor finds that fill a prescription slurry and existing production technology of existing Electric radiant Heating Film 3 is still difficult to realize the production and processing of curved surface or other irregular surfaces such as ripple, honeycomb, and the present invention then well solves above-mentioned technical barrier.
Concrete, when described upper matrix 1 for dull and stereotyped, its upper surface be plane time, as shown in Figure 5, Electric radiant Heating Film 3 is arranged at the upper surface of this planar shaped.
Selectable, also can process uniform honeycomb hole by the upper surface of matrix 1 on plate, and then in upper surface processing Electric radiant Heating Film 3.
When described lower substrate 2 for dull and stereotyped, its bottom surface and lower surface be plane time, as shown in Figure 5, Electric radiant Heating Film 3 is arranged at the lower surface of this planar shaped.
Selectable, also can process uniform honeycomb hole at the lower surface of plate lower substrate 2, and then in lower surface processing Electric radiant Heating Film 3.
The formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability is made to affect less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film 3 can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.The surface that Electric radiant Heating Film 3 and described uniform honeycomb are cheated is good, stable bond, and the setting in honeycomb hole increases the area of heating film, thus increases the heating surface area of matrix, improves the efficiency of heating surface, and homogeneous heating.The Electric radiant Heating Film 3 be arranged on the upper surface of matrix 1 and the lower surface of lower substrate 2 can be the continuous level that is covered on described surface or is arranged at the bar shaped on described surface by definite shape, when Electric radiant Heating Film 3 is in bar shaped, it can be snakelike or annular or the setting of variable curvature shaped form at described surface, and surface described above refers to the upper surface of matrix 1 and the lower surface of lower substrate 2.
When described upper matrix 1 is concave plate, when its upper surface is the inner concave shape curved surface of upwards matrix 1 inner recess, as shown in Figure 2, the formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability affects less by upper matrix 1 upper surface shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film 3 and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film 3 is good with upper matrix 1 inner concave shape curved surface, after stable bond, in heating process, inner concave shape curved surface increase heating and area of dissipation, heat by the radiation effects of inner concave, by dispersion heat constantly to center convergence, make central temperature far above both sides temperature, programming rate is fast, and heating time is short, and heat-transfer effect is high and heating is more even, be easy to the accurate control of heating, be applicable to the application scenario that civilian, commercial, industrial circle etc. needs Fast Heating liquid
When described lower substrate 2 is upper notch plate, when its lower surface is the inner concave shape curved surface to lower substrate 2 inner recess, as indicated with 2, the formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability affects less by lower substrate 2 underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film 3 and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film 3 is good with inner concave shape curved surface, after stable bond, in heating process, inner concave shape curved surface increase heating and area of dissipation, heat by the radiation effects of inner concave, by dispersion heat constantly to center convergence, make central temperature far above both sides temperature, programming rate is fast, and heating time is short, and heat-transfer effect is high and heating is more even, be easy to the accurate control of heating, be applicable to the application scenario that civilian, commercial, industrial circle etc. needs Fast Heating liquid.
When described upper matrix 1 is convex-shaped plate, when its upper surface is the male type curved surface of upwards matrix 1 outer projection, as shown in Figure 1, the formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and upper matrix 1 have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability affects less by upper matrix 1 upper surface shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film 3 and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film 3 is good with male type curved surface, after stable bond, in heating process, heat is by the radiation effects of male type curved surface, heat is constantly dispersed to surrounding, make the effective heating surface (area) (HS of heated substrate larger, heating face temperature evenly, be applicable to as electric bakeware, baking box etc. require high application scenario to temperature homogeneity, when effectively can solve its baking burning or decoct roast food, inconsistent the waiting of cooking level affects the problem of food mouthfeel and culinary art effect.
When described lower substrate 2 is lower convex plate, when its lower surface is the male type curved surface to the outer projection of lower substrate 2, as shown in Figure 1, the formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, make the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability affects less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance is constant, overcome existing Electric radiant Heating Film 3 and can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily come off, the technical problem die-offed useful life.Electric radiant Heating Film 3 is good with male type curved surface, after stable bond, in heating process, heat is by the radiation effects of male type curved surface, heat is constantly dispersed to surrounding, make the effective heating surface (area) (HS of heated substrate larger, heating face temperature evenly, be applicable to as electric bakeware, baking box etc. require high application scenario to temperature homogeneity, when effectively can solve its baking burning or decoct roast food, inconsistent the waiting of cooking level affects the problem of food mouthfeel and culinary art effect.
When described upper matrix 1 be corrugated sheet, its upper surface be corrugated profile time, as shown in Figure 6, the ripple of described corrugated sheet distributes ringwise, and the ripple of described corrugated sheet is arc or zigzag.The formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability is made to affect less by matrix underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film 3 can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.Electric radiant Heating Film 3 is good with corrugated profile, after stable bond, the efficient heat generation area of matrix 1 upper surface on this is increased further, the temperature homogeneity of upper matrix 1 promotes further, heat-transfer effect is good, be heated evenly, thus effectively avoid cooking food to stick in the bottom of a pan, reach non-stick pan, the object of Non-burnt pot, compare the existing non-stick pan that non-viscous paint is set in the bottom of a pan, there will not be and very easily cause the chemical substances such as non-viscous paint wearing and tearing and heavy metal separate out and affect healthy by metal objects such as metal slices, the problem of useful life and result of use, and it is long to have the life-span, cost is low, without advantages such as chemical substance seepages.Meanwhile, upper matrix 1 structure of corrugated sheet also makes the upper surface of heater increase the contact area with air, after stopping heating, and can quick heat radiating.
When described lower substrate 2 be corrugated sheet, its lower surface be corrugated profile time, as shown in Figure 6, the ripple of described corrugated sheet distributes ringwise, and the ripple of described corrugated sheet is arc or zigzag.The formula adopted due to the present invention and technique make Electric radiant Heating Film 3 and matrix have well, reliable binding ability, the efficiency of heating surface of Electric radiant Heating Film 3, useful life, Electric radiant Heating Film 3 stability is made to affect less by lower substrate 2 underside shape, maintain original high efficiency, high life, high thermal conversion efficiency performance are constant, overcome the technical problem that existing Electric radiant Heating Film 3 can not be applied to non-planar substrates or after being applied to non-planar substrates, performance is obviously deteriorated, easily comes off, useful life die-offs.Electric radiant Heating Film 3 is good with corrugated profile, after stable bond, the efficient heat generation area of this lower substrate 2 lower surface is increased further, the temperature homogeneity of lower substrate 2 promotes further, heat-transfer effect is good, be heated evenly, thus effectively avoid cooking food to stick in the bottom of a pan, reach non-stick pan, the object of Non-burnt pot, compare the existing non-stick pan that non-viscous paint is set in the bottom of a pan, there will not be and very easily cause the chemical substances such as non-viscous paint wearing and tearing and heavy metal separate out and affect healthy by metal objects such as metal slices, the problem of useful life and result of use, and it is long to have the life-span, cost is low, without advantages such as chemical substance seepages, life-span is long, cost is low.Meanwhile, lower substrate 2 structure of corrugated sheet also makes the lower surface of heater increase the contact area with air, after stopping heating, and can quick heat radiating.
As mentioned above, the upper surface of upper matrix 1 can be plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile, and the lower surface of lower substrate 2 can be plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile; The shape of upper matrix 1 upper surface and the shape of lower substrate 2 lower surface can carry out unrestricted selection and combination according to the difference of heating cycle: as shown in Figure 1, upper matrix 1 upper surface adopts the combination adopting the male type curved surface of the outer projection to matrix to the male type curved surface of the outer projection of matrix and the lower surface of lower substrate 2
As shown in Figure 2, upper matrix 1 upper surface adopts the combination adopting the inner concave shape curved surface caved in intrinsic silicon to the inner concave shape curved surface of intrinsic silicon depression and the lower surface of lower substrate 2,
As shown in Figure 3, upper matrix 1 upper surface adopts the combination adopting plane to the inner concave shape curved surface of intrinsic silicon depression and the lower surface of lower substrate 2,
As shown in Figure 4, upper matrix 1 upper surface adopts the combination adopting plane to the male type curved surface of the outer projection of matrix and the lower surface of lower substrate 2,
As shown in Figure 5, upper matrix 1 upper surface adopts the lower surface of plane and lower substrate 2 to adopt the combination of plane,
As shown in Figure 6, upper matrix 1 upper surface adopts the lower surface of corrugated profile and lower substrate 2 to adopt the combination of corrugated profile,
As shown in Figure 7, upper matrix 1 upper surface adopts the lower surface of corrugated profile and lower substrate 2 to adopt the combination of plane,
As shown in Figure 8, upper matrix 1 upper surface adopts the combination adopting the male type curved surface of the outer projection to matrix to the inner concave shape curved surface of intrinsic silicon depression and the lower surface of lower substrate 2,
As shown in Figure 9, upper matrix 1 upper surface adopts the combination adopting the inner concave shape curved surface caved in intrinsic silicon to the male type curved surface of the outer projection of matrix and the lower surface of lower substrate 2,
As shown in Figure 10, upper matrix 1 upper surface adopts the lower surface of corrugated profile and lower substrate 2 to adopt the combination of the inner concave shape curved surface caved in intrinsic silicon,
As shown in figure 11, upper matrix 1 upper surface adopts the lower surface of corrugated profile and lower substrate 2 to adopt the combination of the male type curved surface of the outer projection to matrix,
As shown in figure 12, upper matrix 1 upper surface adopts the lower surface of plane and lower substrate 2 to adopt the combination of corrugated profile,
As shown in figure 13, upper matrix 1 upper surface adopts the lower surface of plane and lower substrate 2 to adopt the combination of the male type curved surface of the outer projection to matrix
As shown in figure 14, upper matrix 1 upper surface adopts the lower surface of plane and lower substrate 2 to adopt the combination of the inner concave shape curved surface caved in intrinsic silicon,
As shown in figure 15, upper matrix 1 upper surface adopts the combination adopting corrugated profile to the male type curved surface of the outer projection of matrix and the lower surface of lower substrate 2,
As shown in figure 16, upper matrix 1 upper surface adopts the combination adopting corrugated profile to the inner concave shape curved surface of intrinsic silicon depression and the lower surface of lower substrate 2.
The Electric radiant Heating Film 3 of described upper matrix 1 upper surface and lower substrate 2 lower surface can be the planar shaped or curved surface shaped that cover described surface.The Electric radiant Heating Film 3 of this structure is planar heating, and heating face is large, is applicable to the occasion that heating area is large.The Electric radiant Heating Film 3 of described upper matrix 1 upper surface and lower substrate 2 lower surface also can be bar shaped, and described bar shaped Electric radiant Heating Film 3 is snakelike or annular or the setting of variable curvature shaped form at body upper surface and lower substrate 2 lower surface, as shown in Figure 22,23.Electric radiant Heating Film 3 adopts planar shaped or curved surface shaped and adopts bar shaped to be all applicable to the upper surface of above-mentioned upper matrix 1 and the shape of lower substrate 2 lower surface.
Such as, adopt the lower surface of plane and lower substrate 2 to adopt the combination of plane for upper matrix 1 upper surface, both above matrix 1 upper surface and lower substrate 2 surface can all adopt the Electric radiant Heating Film 3 of planar shaped, as shown in Figure 5; Also above matrix 1 upper surface can adopt the Electric radiant Heating Film 3 of planar shaped, lower substrate 2 lower surface adopts bar shaped Electric radiant Heating Film 3, as shown in figure 17; Also can adopt bar shaped Electric radiant Heating Film 3 by above matrix 1 upper surface, lower substrate 2 lower surface adopts the Electric radiant Heating Film 3 of planar shaped, as shown in figure institute 19; Matrix 1 upper surface can also be gone up and lower substrate 2 surface all adopts bar shaped Electric radiant Heating Film 3, as shown in figure 18.And for example, upper matrix 1 upper surface is adopted to the combination adopting plane to the inner concave shape curved surface of intrinsic silicon depression and the lower surface of lower substrate 2, upper matrix 1 upper surface adopts the Electric radiant Heating Film 3 of curved surface shaped, and lower substrate 2 lower surface adopts bar shaped Electric radiant Heating Film 3, as shown in figure 20; And for example adopt the lower surface of plane and lower substrate 2 to adopt the combination of corrugated profile for upper matrix 1 upper surface, upper matrix 1 upper surface adopts bar shaped Electric radiant Heating Film 3, and lower substrate 2 lower surface adopts the Electric radiant Heating Film 3 of curved surface shaped as shown in figure 21.
The Electric radiant Heating Film 3 adopting formula of the present invention and technique to make can realize higher thermal conversion efficiency, stability, and the useful life that high adhesion force brings extends.
Described Electric radiant Heating Film 3 for plane and curved surface be that what to correspond respectively to matrix 1 upper surface and lower substrate 2 lower surface is plane and nonplanar situation.Because Electric radiant Heating Film 3 fits with upper matrix 1 upper surface and lower substrate 2 lower surface respectively, thus when upper matrix 1 upper surface and lower substrate 2 lower surface are plane, then Electric radiant Heating Film 3 is continuous print plane; And when upper matrix 1 upper surface and lower substrate 2 lower surface be the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile time, Electric radiant Heating Film 3 is continuous print inner concave shape curved surface, male type curved surface or corrugated profile.
When Electric radiant Heating Film 3 is applied to planar shaped or curved surface shaped, heated substrate efficient heat generation area can be made to increase, matrix heating evenly, heat is passed to matrix by Electric radiant Heating Film 3, and stop the rear rapid heat dissipation of heating, it is wide that it has utilization in electric heating product development, quick heating, heat the advantages such as fast, be applicable to for plane is as the device of pan, baking tray, electric baking pan etc. bottom field of household appliances heating appliances, and the electric heating Electric radiant Heating Film 3 technology application product such as agricultural greenhouse booth, industrial cubic water tank.
It is no matter the Electric radiant Heating Film 3 of planar shaped or curved surface shaped, or the Electric radiant Heating Film 3 of bar shaped, the described Electric radiant Heating Film 3 being arranged at matrix 1 upper surface can be the Electric radiant Heating Film 3 with same resistivity, also can be formed for being connected by the Electric radiant Heating Film 3 of two or more different resistivity; The Electric radiant Heating Film 3 being arranged at lower substrate 2 lower surface can be the Electric radiant Heating Film 3 with same resistivity, also can be formed for being connected by the Electric radiant Heating Film 3 of two or more different resistivity.When the Electric radiant Heating Film 3 on upper matrix 1 upper surface or lower substrate 2 lower surface by the Electric radiant Heating Film 3 of the different resistivity of two kinds or more connect formed time, the high temperature resistance film of two or more different resistivity is set in the zones of different on described surface, link together in the mode of series circuit again, only need a way switch, realize the region Variable power heating technique of low cost, high efficiency, homogeneous heating, temperature constant.
The subregion resistive film heating technique of this different resistivity, namely according to the needs of heater processing, needing the position of improving the efficiency of heating surface, the large Electric radiant Heating Film of resistivity 3 is set, and needing the position reducing the efficiency of heating surface that the little Electric radiant Heating Film of resistivity 3 is set, then the Electric radiant Heating Film 3 at each position is linked together in the mode of series circuit.
For described bar shaped Electric radiant Heating Film 3, the density can also arranged in upper matrix 1 upper surface or lower substrate 2 lower surface region by changing bar shaped Electric radiant Heating Film 3 changes heating power, in the position needing the raising efficiency of heating surface, namely passed through the method for the layout density increasing this position inner stripe Electric radiant Heating Film 3 by the spacing reduced between bar shaped Electric radiant Heating Film 3, improve the efficiency of heating surface at this position; And needing the position reducing the efficiency of heating surface by increasing the spacing of bar shaped Electric radiant Heating Film 3 namely by reducing the method for the layout density of this position inner stripe Electric radiant Heating Film 3, reduce the efficiency of heating surface at this position.
Use the subregion resistive film heating technique of different resistivity, can solve because heating appliances is along with the rising of heating-up temperature, heat is constantly toward center convergence, and cause center local temperature too high, the food caused is charred, be burned etc. affects the problem that user cooks experience.Particularly, the Electric radiant Heating Film 3 that resistivity is less can be adopted at the middle part of upper matrix 1 upper surface middle part and lower substrate 2 lower surface, and adopt in the periphery of upper matrix 1 upper surface periphery and lower substrate 2 lower surface the Electric radiant Heating Film 3 that resistivity is larger, as shown in Figure 22, Figure 23, thus avoid the generation of the too high phenomenon of middle part local temperature, ensure that the homogeneous heating of whole heating region, enhance the culinary art effect of food.
Adopt the high-temperature electric heating membrane 3 of the different resistivity arranged subregion to connect in the mode of series circuit, only need a way switch to control, the region Variable power heating of high efficiency, homogeneous heating, temperature constant can be realized.Eliminate conventional art heats branch road structure member owing to arranging Multi-path electricity hotting mask 3, and electronic circuit device cost.Solve small household appliances Portable small, low cost, high efficiency problem.
The method that the heater that bottom described in employing and top are heated simultaneously carries out heating is: as shown in figure 24, the both positive and negative polarity of power supply is connected with the access contact 5 of the access contact 5 of the Electric radiant Heating Film 3 of upper matrix 1 upper surface and the Electric radiant Heating Film 3 of lower substrate 2 lower surface respectively, the access contact 5 of Electric radiant Heating Film 3 is placed on the galactic pole 4 of Electric radiant Heating Film 3 respectively, after the Electric radiant Heating Film 3 of upper matrix 1 upper surface and the Electric radiant Heating Film 3 of lower substrate 2 lower surface switch on power, electric energy is directly converted to the outside dissipate heat of heat energy by Electric radiant Heating Film 3, thus the upper matrix 1 of heating and lower substrate 2, the material be contained between upper matrix 1 and lower substrate 2 is heated by upper matrix 1 and lower substrate 2 simultaneously.
As mentioned above, the present invention can be realized preferably.

Claims (9)

1. the heater that simultaneously heats of a bottom and top, it is characterized in that, comprise the upper matrix (1) and lower substrate (2) that are oppositely arranged up and down, the upper surface of upper matrix (1) and the lower surface of lower substrate (2) are provided with Electric radiant Heating Film (3), and described Electric radiant Heating Film (3) is made up of the component of following weight ratio:
Butter of tin 30 ~ 50,
Titanium trichloride 0.8 ~ 1.2,
Trichloride antimony 12 ~ 18,
U-Ramin MC 1.5 ~ 2.5,
Chrome green 0.8 ~ 1.2,
Manganese dioxide 0.8 ~ 1.2,
Nickel sesquioxide 0.8 ~ 1.2,
Isopropyl alcohol 8 ~ 12,
Ethanol 3 ~ 5,
Water 20 ~ 30;
The preparation method of described Electric radiant Heating Film (3) is:
S1, take each component by above-mentioned weight ratio, by the component mixing taken, continue stirring until solid and all to dissolve and each component mixes, obtain Electric radiant Heating Film treatment fluid;
S2, upper matrix (1) and lower substrate (2) to be delivered in heating cavity respectively, temperature in heating cavity controls at 400 DEG C ~ 700 DEG C, after upper matrix (1) and lower substrate (2) are heated to 400 DEG C ~ 700 DEG C, by spray gun by the atomization of Electric radiant Heating Film treatment fluid and the lower surface being sprayed into the upper surface of the upper matrix (1) in heating cavity and lower substrate (2) respectively forms half-finished product of electric heating film, the expulsion pressure of Electric radiant Heating Film treatment fluid is 1kg/cm 2~ 2kg/cm 2, the distance of lance outlet distance matrix is 0.4m ~ 0.8m, and injecting time is 20s ~ 30s;
S3, annealing, send into described upper matrix (1) and lower substrate (2) in heating cavity, temperature to 300 in heating cavity DEG C ~ 550 DEG C, annealing 15min ~ 20min;
S4, silver oxide slurry is coated on the surface at half-finished product of electric heating film two ends after annealing, then send into the processing that electrode bake oven scorification unification body completes galactic pole (4), obtain Electric radiant Heating Film (3) finished product.
2. the heater that simultaneously heats of a kind of bottom according to claim 1 and top, is characterized in that, described upper matrix (1) and lower substrate (2) adopt devitrified glass to make.
3. the heater that simultaneously heats of a kind of bottom according to claim 1 and 2 and top, it is characterized in that, the upper surface of described upper matrix (1) is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile, and the lower surface of described lower substrate (2) is plane or the inner concave shape curved surface to intrinsic silicon depression or the male type curved surface to the outer projection of matrix or corrugated profile.
4. the heater that simultaneously heats of a kind of bottom according to claim 1 and 2 and top, it is characterized in that, described upper matrix (1) upper surface and the Electric radiant Heating Film (3) of lower substrate (2) lower surface are cover the planar shaped on described surface or curved surface shaped or bar shaped.
5. the heater that simultaneously heats of a kind of bottom according to claim 3 and top, is characterized in that, described upper matrix (1) upper surface and the Electric radiant Heating Film (3) of lower substrate (2) lower surface are cover the planar shaped on described surface or curved surface shaped or bar shaped.
6. the heater that a kind of bottom according to claim 1,2,5 and top are heated simultaneously, it is characterized in that, the described Electric radiant Heating Film (3) being arranged at matrix (1) upper surface is for having the Electric radiant Heating Film (3) of same resistivity, or Electric radiant Heating Film (3) series connection of different resistivity by two or more is formed; The Electric radiant Heating Film (3) being arranged at lower substrate (2) lower surface is formed for Electric radiant Heating Film (3) series connection with the Electric radiant Heating Film (3) of same resistivity or the different resistivity by two or more.
7. the heater that simultaneously heats of a kind of bottom according to claim 3 and top, it is characterized in that, the described Electric radiant Heating Film (3) being arranged at matrix (1) upper surface is for having the Electric radiant Heating Film (3) of same resistivity, or Electric radiant Heating Film (3) series connection of different resistivity by two or more is formed; The Electric radiant Heating Film (3) being arranged at lower substrate (2) lower surface is formed for Electric radiant Heating Film (3) series connection with the Electric radiant Heating Film (3) of same resistivity or the different resistivity by two or more.
8. the heater that simultaneously heats of a kind of bottom according to claim 4 and top, it is characterized in that, the described Electric radiant Heating Film (3) being arranged at matrix (1) upper surface is for having the Electric radiant Heating Film (3) of same resistivity, or Electric radiant Heating Film (3) series connection of different resistivity by two or more is formed; The Electric radiant Heating Film (3) being arranged at lower substrate (2) lower surface is formed for Electric radiant Heating Film (3) series connection with the Electric radiant Heating Film (3) of same resistivity or the different resistivity by two or more.
9. the heater adopting bottom and top simultaneously to heat carries out the method heated, it is characterized in that, after the Electric radiant Heating Film (3) of upper matrix (1) upper surface and the Electric radiant Heating Film (3) of lower substrate (2) lower surface are switched on power, electric energy is directly converted to the outside dissipate heat of heat energy by Electric radiant Heating Film (3), thus the upper matrix (1) of heating and lower substrate (2), the material be contained between upper matrix (1) and lower substrate (2) is heated by upper matrix (1) and lower substrate (2) simultaneously.
CN201510508197.4A 2015-08-19 2015-08-19 Heating apparatus for heating bottom and top simultaneously and heating method thereof Pending CN105050212A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108652439A (en) * 2017-03-31 2018-10-16 佛山市顺德区美的电热电器制造有限公司 Insulating pot
CN114214606A (en) * 2021-12-02 2022-03-22 中国工程物理研究院激光聚变研究中心 Apparatus for initiated chemical vapor deposition

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CN101282597A (en) * 2008-05-21 2008-10-08 胡红 Heating element and heating apparatus for nano electric heating membrane
CN101744522A (en) * 2008-12-17 2010-06-23 张华文 Energy-saving electric heating cooker
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CN104080208A (en) * 2013-03-26 2014-10-01 颜彬 Manufacturing method of electrothermal film
CN204410583U (en) * 2015-02-12 2015-06-24 佛山市顺德区美的电热电器制造有限公司 Upper cover and electric cooker
CN204410589U (en) * 2015-02-12 2015-06-24 佛山市顺德区美的电热电器制造有限公司 Electric heating plate and electric cooker

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CN1386466A (en) * 2002-06-25 2002-12-25 赵申苓 Energy-saving multi-power electric cooker
CN101282597A (en) * 2008-05-21 2008-10-08 胡红 Heating element and heating apparatus for nano electric heating membrane
CN101744522A (en) * 2008-12-17 2010-06-23 张华文 Energy-saving electric heating cooker
CN202009504U (en) * 2011-02-15 2011-10-12 赖立恭 Quartz glass heating tube
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* Cited by examiner, † Cited by third party
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CN108652439A (en) * 2017-03-31 2018-10-16 佛山市顺德区美的电热电器制造有限公司 Insulating pot
CN114214606A (en) * 2021-12-02 2022-03-22 中国工程物理研究院激光聚变研究中心 Apparatus for initiated chemical vapor deposition

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Application publication date: 20151111