CN2487981Y - Far-infrared electric frying range - Google Patents

Abstract

A far-infrared electric frying range comprises a power supply wire, a controlling circuit board, a left and a right electric heating ranges, a left and a right controlling switches, a time switch, a power indicating light, an alarming indicating light, a metallic structure framework and a stainless steel casing which are electrically connected or mechanically connected in sequence, and the appearance is similar to a double-range gas range. The pan bottom can be heated by the direct radiant energy of the electrically heated wire and the far-infrared, so the electric energy utilization rate of the stove appliance is increased, and the using cost is equivalent with the gas range, an electric leakage testing circuit is connected with a stainless steel casing to test if the pan appliance is charged or not, the heating power is switched off automatically if the product leaks electricity, and the sound-light alarming is generated. The utility model has the functions of temperature adjusting and timing, does not require a special pan, and is applicable to various general pan appliances.

Description

The far infrared electric frying range

The utility model relates to the electric heating kitchen range that the energy is made in a kind of electricity consumption, especially uses the far infrared electric frying range fool proof, that utilization rate of electrical is high.

At present, known kitchen range family is the boundless universe, only electricity consumption just down tens of kinds of kitchen range making the energy.With regard to electric frying pan, electric stove, the electrothermal conversioning element that it uses is an electric heating tube, because the area of dissipation of heater element is very little, therefore must be enclosed in electric heating tube in the heat-generating disc of above-mentioned two kinds of kitchen range, to increase the contact area of the bottom of a pan and pyrotoxin, the heat energy that electric heating tube is distributed utilizes to greatest extent.But in fact because heat-generating disc is not taked the measure of closed heat, the heat energy of electric heating tube conducting pathway heat-generating disc has the big part of root directly to distribute from air, some conducts to shell by the fixing metalwork of heat-generating disc and distributes to air, and this is first not high factor of electric frying pan, electric stove utilization rate of electrical.Moreover the special-purpose assorted pan that uses of electric frying pan, electric stove contacts with heat-generating disc and is not very tight, and this has also influenced the transport of heat energy to pan on the big degree of root.Therefore use electric frying pan, electric stove must use supporting with it special-purpose pan, preferably also must use a clamping device, to reduce the gap between the bottom of a pan and the heat-generating disc, so just can improve the utilization rate of electric energy greatly, if use the pan that does not match, the utilization rate of electrical of electric frying pan, electric stove is probably not as good as a common electric furnace.With regard to electric frying pan in the market, electric stove, most products do not have anticreeper, so-called anticreep measure is exactly that the earth connection in the three core power lines is connected the kitchen range shell, the situation of reality is that the mains supply that enters user's dwelling house does not generally have earth connection, the power supply base that subscriber household is installed generally has only live wire and zero line, original metal water supply pipe system is a grounding body that root is good, but the water supply and sewage pipe overwhelming majority of dwelling house installation at present is novel aluminium pipe material or pure-plastics pipe, the user can't install the good earth connection of ground connection to household electrical appliance, therefore, electric frying pan, electric stove adopts the anticreep measure meeting of earthing of casing line to bring potential safety hazard to the user, if any the good earth connection of ground connection, this also is a kind of safest anticreep measure in the power supply base.As everyone knows, use the electric heating kitchenware of electrothermal conversioning element, as leak electricity, it is electrothermal conversioning element that reason more than 90% is arranged, therefore to pan and kitchen range shell when adopting above-mentioned anticreep measure, also must adopt other effective anticreep measure, guarantee user's personal safety.

The purpose of this utility model provides a kind of far infrared electric frying range fool proof, that utilization rate of electrical is high that uses, it can not only resemble is fried in shallow oil, fries, explodes, steams, is boiled by user's direct control the gas-cooker, and do not need special-purpose assorted pan, adapt to most various conventional pans.

For reaching above-mentioned purpose, the utility model is adopted following scheme: in stainless steel casing, kitchen range top face is equipped with the left electrical heating kitchen range and the right electrical heating kitchen range of two different capacities, left gauge tap and right gauge tap are equipped with in the front, and time switch potentiometer, power supply indicator and alarm lamp are equipped with in the middle part of two groups of gauge taps.The electrical connection in accordance with regulations of the components and parts of control circuit is welded on one 50 * 70 millimeters the control circuit board, and power line, control circuit board, left and right sides electrical heating kitchen range, left and right sides gauge tap, time switch potentiometer, power supply indicator, alarm lamp, alarm buzzer, metal structure framework, stainless steel casing order in accordance with regulations are electrically connected or mechanical connection.In order to improve the utilization rate of electric energy, the electrical heating kitchen range that the utility model adopted is made up of electrical heating kitchen range stove, thermal insulating warm-keeping layer, electrical heating kitchen range stove holder basin and electrical heating wire.Electrical heating kitchen range stove can add the method moulding of a certain proportion of far-infrared emission material (as chromium oxide, cobalt oxide, carborundum, boron nitride etc.) with ceramic production technology with zircon, blackness is 0.96, the stove temperature can be launched the far infrared of strong 5-40um when more than 600 spend at 380 degree, long service life, price is low.Material (as materials such as soft clays) the production moulding of the common electric furnace stone or metal plate for standing a stove on as a precaution against fire of the also available production of electrical heating kitchen range stove, after the stove moulding in 110 millimeters scopes of concave surface center radius the above-mentioned far-infrared emission material of coated, also can play identical effect.Electrical heating kitchen range stove concave design will adapt to most various conventional pans, make pan be placed on the stove concave surface and meet two requirements, the one, 20 millimeters positions, stove concave surface upper end and pan contact gap are trickle, and the 2nd, the heat radiation zone that pan bottom heating surface and stove concave surface form is the smaller the better.Thermal insulating warm-keeping layer is selected magnesium metasilicate heat preservation cotton or the machine-shaping of chrysotile asbestos for use, thickness is 10 millimeters, assembling back effective thickness be 6 millimeters thermal insulating warm-keeping layer will stop heat energy around stove and bottom distribute, after making the energising of electrical heating kitchen range, the stove temperature can rise to more than 380 ℃ in the short period of time, after reaching the temperature shelves, still can continue to keep this temperature, keep a large amount of radiation of far infrared.Electrical heating kitchen range stove holder basin plays the fixedly effect of thermal insulating warm-keeping layer, electrical heating kitchen range stove, the best coated indium oxide film of holder basin internal layer.Like this and the conventional pan of the electrical heating kitchen range of bottom thermal insulation and use heater members electrical heating wire, electrical heating kitchen range stove far infrared radiation face and radiation area formed seal, the direct radiant energy and the far infrared of electrical heating wire heat the bottom of a pan, and pan bottom heating surface is the only way which must be passed of thermal energy conduction.10 millimeters positions, electrical heating kitchen range stove concave surface upper end are by the capping of primary stainless steel shell, the one, play the fixedly effect of electrical heating kitchen range, the 2nd, conventional pan cooperates closely with primary stainless steel shell capping position, contact resistance is little, electric leakage and live wire reversal connection testing circuit connect stainless steel casing detection pan, whether stainless steel casing is charged, electrical heating wire contingency contacts electric leakage with the bottom of a pan, electric leakage signal is passed to control circuit by stainless steel casing and is cut off live wire and zero line, and the concurrent visual alarm prompting user that speaks takes measures to eliminate fault.Regularly adopt the capacitance-resistance electronic timing circuit, utilize the switch short circuit timing capacitor in the time switch potentiometer, make the timing accuracy height, cancellation definition status recovery heating (or continuing regularly heating) soon.Common high-power commutation diode is adopted in temperature adjustment, and circuit is simple, and reliable operation makes product have the second gear temperature and selects.The electric power starting of two electrical heating kitchen ranges, temperature adjustment selection and kitchen range power remove about left and right sides gauge tap should be able to be controlled respectively.

Owing to adopt such scheme, the utlity model has following characteristics: first, owing to adopt traditional heating wire heating means and advanced Far-infrared Heating method, add other effective measures (to electrical heating kitchen range adiabatic heat-insulation, utilize pan sealing heater members), make utilization rate of electrical of the present utility model up to more than 85%, can make user's use cost suitable with the general gas kitchen range.The second, owing to adopted effective anticreep measure, make use of the present utility model fool proof.The 3rd, because design is comparatively reasonable, so the utility model need not to use special-purpose pan, adapt to most various conventional pans, can also fry in shallow oil, fry, explode, steam, boil by user's direct control as gas-cooker, to adapt to most Chinese eating habits, be very easy to users.The 4th, the utility model is simple in structure, and cost of manufacture is lower, and is durable in use, easy to use.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is a far infrared electric frying range embodiment schematic diagram.

Fig. 3 is an electrical heating kitchen range stove cutaway view among Fig. 2.

Fig. 4 is an electrical heating kitchen range stove vertical view among Fig. 2.

Fig. 5 is an electrical heating kitchen range cutaway view among Fig. 2.

Fig. 6 is right electrical heating kitchen range vertical section among Fig. 2 (A-A ') organigram.

Among the figure 1, power line incoming end 2, high power relay J ₂3, right electrical heating wire 4, right gauge tap 5, time switch potentiometer 6, electric leakage and live wire reversal connection testing circuit 7, flip-flop circuit 8, audio oscillator circuit 9, alarm buzzer 10, temperature adjustment diode 11, high power relay J ₁12, left side electrical heating wire 13, left side gauge tap 14, ac buck circuit 15, current rectifying and wave filtering circuit 16, power supply indicator 17, direct current regulation circuit 18, resistor voltage divider circuit 19, control relay circuit 20, alarm lamp 21, electrical heating kitchen range stove 22, primary stainless steel shell 23, electric frying range leg 24, stainless steel side shell 25, power line 26, electrical heating wire groove 27, electrical heating wire fairlead 28, far-infrared radiation face 29, electrical heating kitchen range stove holder box 30, thermal insulating warm-keeping layer 31, metal structure framework 32, porcelain support 33, left and right sides gauge tap, power supply and alarm lamp, the time switch potentiometer, control circuit sheetmetal fixed support

In Fig. 1, the power line of far infrared electric frying range (25) is introduced power line incoming end (1) with civil power, the civil power live wire is introduced (1) L end and is sent into that high power relay (11) movable contact, left gauge tap (13) leave, right gauge tap (4) is opened, and the civil power zero line is introduced (1) N end and sent into high power relay (2) movable contact and full-wave bridge rectifier circuit (15).Press (13) and open or open (4), civil power is sent into control circuit board, and green power supply indicator lamp (16) is bright, the normally opened contact closure of control high power relay (11), high power relay (2).(13) I or (4) I are pressed in the temperature heating in needing, and (13) II or (4) II are then pressed in heating as need high temperature, and electrical heating kitchen range in the left and right sides can use separately, also can use simultaneously.When using separately, left side electrical heating kitchen range (21), (29), (30), (12) high temperature shelves consumed power 1.2Kw, middle temperature shelves consumed power 0.3Kw, right electrical heating kitchen range (21), (29), (30), (3) high temperature shelves consumed power 0.6Kw, middle temperature shelves consumed power 0.15Kw, two kitchen ranges use simultaneously, far infrared electric frying range maximum consumption power 1.8Kw.Finish using and close or (4) pass by (13), power supply indicator (16) goes out.

A left side gauge tap (13) open or right gauge tap (4) open press after, civil power is sent into current rectifying and wave filtering circuit (15) after ac buck circuit (14) step-down, the low-voltage dc power supply one tunnel of output is sent into control coil, the alarm lamp (20) of high power relay (11), another road is sent into direct current regulation circuit (17) and is carried out voltage stabilizing, and the dc source after voltage stabilizing is sent into flip-flop circuit (7), audio oscillator circuit (8), resistor voltage divider circuit (18) and control relay circuit (19).Trigger flip-flop circuit (7) as electric leakage and the no differential signal of live wire reversal connection testing circuit (6) (being that far infrared electric frying range power supply base live wire and the correctly installation of mould line, pan and stainless steel casing do not have dangerous voltage), audio oscillator circuit (8) is work down, alarm lamp (20) does not work, alarm buzzer (9) is sounding not, control relay circuit (19) only is subjected to the control of resistor voltage divider circuit (18) and time switch potentiometer (5), do not need regularly, time switch potentiometer (5) is in the position of " pass ", the amplifier A in the control relay circuit (19) ₁(+) terminal potential is higher than A ₁(-) terminal potential, control relay circuit (19) is the closed power supply of connecting the electrical heating kitchen range of normally opened contact of output signal control high power relay (2), (11) then, as need regularly, open time switch potentiometer (5) and adjust to required 10 minutes～60 minutes timing positions, timing is less than, the amplifier A in the control relay circuit (19) ₁(+) terminal potential is higher than amplifier A ₁(-) terminal potential, the closed power supply of connecting the electrical heating kitchen range of the normally opened contact of high power relay (2), (11), the time one arrives, amplifier A ₁(-) terminal potential will be higher than amplifier A ₁(+) terminal potential, the movable contact that control relay circuit (19) is then controlled high power relay (2), (11) resets and cuts off electrical heating kitchen range power supply, continue regularly heating as need, time switch potentiometer (5) is screwed into opens switch again behind the position of " pass " and adjust to required timing position, continue heating and do not need timing as need, the position that time switch potentiometer (5) is screwed into " pass " gets final product.Differential signal is arranged (is far infrared electric frying range power supply base live wire and zero line misloading as electric leakage and live wire reversal connection testing circuit (6), pan and stainless steel casing have 〉=10 volts alternating voltage) trigger flip-flop circuit (7), flip-flop circuit (7) will overturn immediately, force control relay circuit (19) control high power relay (2), (11) movable contact resets, in time cut off the power supply of electrical heating kitchen range, also control simultaneously audio oscillator circuit (8) work, make red alarm indicator lamp (20) bright, alarm buzzer (9) sends chimes of doom, the prompting user pulls up the power-line plug (25) of far infrared electric frying range, press gauge tap (4) pass or (13) and close, eliminate fault again.

In embodiment illustrated in fig. 2, the front of far infrared electric frying range, kitchen range top face and back are by primary stainless steel shell (22) sealing, and the left side and the right side are sealed by stainless steel side shell (24).The left of kitchen range top face is equipped with left electrical heating kitchen range (21), (30), (29), (12), right-hand right electrical heating kitchen range (21), (30), (29), (3) of being equipped with, left gauge tap (13) is equipped with on the positive left side, right gauge tap (4) is equipped with on the right, time switch (5), power supply indicator (16), alarm lamp (20) are equipped with in the middle part of two groups of gauge taps, three-prong plug power line (25) is equipped with on the right, back, and the bottom four corners position is equipped with four electric frying range legs (23).The similar common double kitchen range of the external form of far infrared electric frying range gas-cooker is shaped as flat cuboid, and is long 720 millimeters, 340 millimeters of kitchen range top face widths, the bottom is wide 380 millimeters, and is high 85 millimeters, together with electric frying range leg (23) high≤110 millimeters.

Fig. 3, Fig. 4 are the cutaway view and the vertical views of electrical heating kitchen range stove (21).Be provided with electrical heating wire groove (26), the electrical heating wire fairlead (27) that is evenly distributed in 110 millimeters scopes of electrical heating kitchen range stove (21) concave surface center radius, this scope also is effective radiating surface (28) of far infrared.Electrical heating wire groove (26) is wide 5 millimeters, and dark 9 millimeters, electrical heating wire fairlead diameter is 3 millimeters, and when design can guarantee the bottom of a pan contact concave surface like this, electrical heating wire (3), (12) had 3～4 mm distance at least with the bottom of a pan, prevent that pan is charged.275 millimeters of electrical heating kitchen range stove maximum gauges, 265 millimeters of top diameters, 180 millimeters of base diameters, high 56 millimeters, dark 40 millimeters of stove concave surface, in 40 millimeters scopes of concave bottom center radius is the plane, and concave surface upper inclined surface and plane included angle, concave surface upper end are 32 degree, and its radius of the curved surface between inclined-plane and the baseplane is 150 millimeters.Through experiment, such design data adapts to most various conventional pans.Pan is placed on the stove concave surface, position that the concave surface upper end is 20 millimeters and pan can both desirablely cooperate, contact gap is trickle, to stoping distributing of heat energy to have the big effect of root, though the thermal radiation field that the bottom heating surface of different pans and concave surface form varies in size, but generally all less, little to the direct radiation and the far infrared radiation influence of heat energy.Can electrical heating kitchen range stove (21) effectively launch a large amount of far infrareds during in temperature 〉=389 ℃, is the key that electrical heating kitchen range stove (21) is manufactured.

Fig. 5 is the cutaway view of electrical heating kitchen range.Electrical heating kitchen range stove holder basin (29) is held thermal insulating warm-keeping layer (30) and electrical heating kitchen range stove (21).Thermal insulating warm-keeping layer (30) adopts magnesium metasilicate heat preservation layer or the machine-shaping of chrysotile asbestos, thickness is 10 millimeters, be assemblied between electrical heating kitchen range stove (21) and the electrical heating kitchen range stove holder basin (29), effective thickness after compression is 6 millimeters, can effectively stop heat energy to reach the bottom on every side from electrical heating kitchen range stove distributes, to reducing far infrared electric frying range stainless steel casing (22), (24) temperature has effect greatly, electrical heating wire groove (26) assembling electrical heating wire (3) or (12) on the electrical heating kitchen range stove (21), two leading-out ends of electrical heating wire (3) or (12) are drawn from electrical heating wire fairlead (27).

Fig. 6 is the right electrical heating kitchen range of a far infrared electric frying range vertical section organigram.In the drawings, be fixed on the metal structure framework (31) before and after the electrical heating kitchen range stove holder basin (29) in right electrical heating kitchen range (21), (29), (30), (3), the last end periphery of right electrical heating kitchen range (21), (29), (30), (3) is by primary stainless steel shell (22) capping, play the effect of fixing right electrical heating kitchen range (21), (29), (30), (3) equally, but the more important thing is to play and detect the effect whether pan has dangerous voltage, the installation of in like manner left electrical heating kitchen range (21), (29), (30), (12) also is the same.Install metallic support (33) two ends of gauge tap, indicator lamp and two porcelain supports (32) be separately fixed in the metal framework (31) fixing about on two laths of metals of two electrical heating kitchen range stove holder basins, two leading-out ends of right electrical heating wire (3) are separately fixed at the both sides of the porcelain support in the right (32), and two leading-out ends of in like manner left electrical heating wire (12) are the fixing both sides of another porcelain support (32) of the left side respectively.Left side gauge tap (13), right gauge tap (4) are separately fixed at the two ends of metallic support (33), and time switch potentiometer (5), power supply indicator (16), alarm lamp (20) and control circuit board are separately fixed at the middle part of metallic support (33).The laths of metal that metal structure framework (31) is differed by a channel-section steel and eight length respectively after the moulding spot welding form, it is the spine of far infrared electric frying range, plays the effect that installs and fixes left electrical heating kitchen range, right electrical heating kitchen range, metallic support (33), stainless steel casing (22), (24).

Claims (3)

1, a kind of far infrared electric frying range, in stainless steel casing, kitchen range top face is equipped with the left electrical heating kitchen range and the right electrical heating kitchen range of two different capacities, left gauge tap and right gauge tap are equipped with in the front, the time switch potentiometer is equipped with in the middle part of two groups of gauge taps, power supply indicator and alarm lamp, the electrical connection in accordance with regulations of the components and parts of control circuit is welded on the control circuit board, power line, control circuit board, left and right sides electrical heating kitchen range, left and right sides gauge tap, the time switch potentiometer, power supply indicator, alarm lamp, alarm buzzer, the metal structure framework, stainless steel casing order in accordance with regulations is electrically connected or mechanical connection, it is characterized in that: electrical heating kitchen range stove is to add a certain proportion of far-infrared emission material machine-shaping with zircon or soft clay, stove reaches uniform temperature can launch strong far infrared, stove bottom and assemble heat-insulation material all around, the direct width of cloth of heater members electrical heating wire penetrate can and the stove far infrared acting in conjunction of launching in the bottom of a pan heating surface, ten millimeters positions, electrical heating kitchen range concave surface upper end are by the stainless steel casing capping, pan can cooperate with the capping position closely, electric leakage in the control circuit and live wire reversal connection detection line connect the primary stainless steel shell, and the pan of control far infrared electric frying range shell and use does not have dangerous voltage.

2, far infrared electric frying range according to claim 1 is characterized in that the power supply of control circuit is introduced through the power line of far infrared electric frying range, and live wire meets high power relay J ₁Movable contact, left gauge tap and right gauge tap, zero line connect high power relay J2 movable contact, current rectifying and wave filtering circuit, and electrical heating kitchen range heating power supply is by high power relay J ₁, J ₂Normally opened contact provide, after the step-down of ac buck circuit, send into current rectifying and wave filtering circuit through the civil power that gauge tap is added on the control circuit board, the low-voltage dc power supply one tunnel of output is sent into high power relay J ₁Control coil, alarm lamp, another road is sent into direct current regulation circuit and is carried out voltage stabilizing, dc source through voltage stabilizing is sent into resistor voltage divider circuit and a four high guaily unit integrated circuit, four high guaily unit integrated circuit and its peripheral cell constitute control relay circuit, flip-flop circuit and audio oscillator circuit, regularly adopt capacitance-resistance timing circuit, time switch potentiometer to utilize its switch short circuit timing capacitor.

3, far infrared electric frying range according to claim 1, it is characterized in that electrical heating kitchen range in the left and right sides is by electrical heating kitchen range stove, thermal insulating warm-keeping layer, electrical heating kitchen range stove holder basin and electrical heating wire are formed, electrical heating kitchen range stove concave surface 20 millimeters positions, upper end and conventional pan fit clearance are trickle, in 110 millimeters scopes of concave surface center radius is the electrical heating wire area of coverage and the effective radiating surface of far infrared, thermal insulating warm-keeping layer adopts magnesium metasilicate heat preservation cotton or the cotton machine-shaping of chrysotile asbestos, effective thickness is 6 millimeters, electrical heating kitchen range stove holder basin adopts stainless sheet steel or common metal thin plate to make internal layer coated indium oxide film.

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