CN1100916A

CN1100916A - Multifunction energy-saving electrothermal pot

Info

Publication number: CN1100916A
Application number: CN 94100073
Authority: CN
Inventors: 王永光
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-10
Filing date: 1994-01-10
Publication date: 1995-04-05

Abstract

The present invention belongs to a kitchen electroheating cooking utensil. According to the cooking law of using a strong fire to boil and stew and using a slow fire to braise said invention places a near boiling point sensor and a power controller in the bottom of electric cooker, and when the temperature in the cooker is closed to boiling point by full-power heating, the temperature is converted to a proper power to heat, so that the temperature controlling function of the electric cooker can be extended from cooking rice to cooking soup, gruel, meats and food difficult to be cooked, and can greatly save energy source. Meanwhile the adopted timer can bring the convenience for cooking several foods.

Description

Multifunction energy-saving electrothermal pot

The invention belongs to electric-heating cooking utensil for kitchen use.

Electric cooker is after nineteen fifty-five is released market by the Japanese, produced great economic benefit, wherein magnet steel Temperature Control Type sensor was from 1961, in electric cooker, use so far 33 years, particularly household electrical appliance electronizations fashionable after what years, this magnet steel Temperature Control Type sensor still occupies the main flow in electric cooker market, the whole world so far.The product computer electric cooker of electric cooker electronization, though come out for many years already, and obtaining certain progress aspect the function expansion and the saving energy, but because the cost height of product, disadvantage that the quality assurance difficulty is big, probability of failure is big etc. can't overcome, the product of this class computer electric cooker, the still difficult at present leading market that forms electric cooker.

The objective of the invention is according to rice and the rule of other food cookings to the heating condition demand, i.e. big fire is boiled stewed, and little fire is stewing to be simmered, and described big fire is the promptly suitable small-power heating of heating with full power, little fire.The preparation of designing optimal sensor obtains the optimum heating power curve of foods such as rice, soup congee, meat in conjunction with the cooperation of best power device, is equipped with time controller again, finishes existing electric cooker product function expansion and energy-conservation technological progress.The product of three more than ten years of finding a good market is reached a new level.It is the electric food warmer of inner bag that design philosophy of the present invention is equally applicable to pottery, boccaro.

The present invention boils to stew to nearly boiling point according to total power and uses the stewing culinary art rule of simmering of suitable power again, food is under heating with full power in the pot, before being warming up to incipient boiling, by the ad hoc sensor power sensor place in circuit that will suit, realize suitable power heating, formed total power and boiled the stewing multifunction energy-saving control of simmering of stewed, suitable power.Also can mix timer simultaneously and control " duration and degree of heating " control of finishing in the comparatively ideal culinary art.This cooking process can illustrate with Fig. 1.Abscissa T represents cooking time in Fig. 1, and ordinate left side t represents interior pot bottom temperature, and unit is ℃; Ordinate the right P represents the pot bottom heating power, represents with percentage; Draw used power when the culinary art of oblique line cartographic represenation of area is arranged; The temperature history of interior pot bottom when culinary art represented by curve a～f, wherein the ac section of curve is the temperature history of rice, it also is the temperature history of present commercially available electric cooker, but it is with 100% power heating ac section, and the present invention establishes a temperature sensor at the b point, keep cooking temp at the suitable power of bc section realization, this b point temperature sensor is named as nearly boiling point sensor J.Purpose of the present invention by setting up nearly boiling point sensor J, switches to suitable power heating with heating with full power exactly.This nearly boiling point power transfer control method not only can guarantee the quality of rice that boils fully, and has saved the unnecessary energy, shown in Fig. 1 blank.This method boils the necessary energy that overflows owing to reduced effectively when boiling soup congee group food, not only thoroughly solved and boiled excessive problem, and really realized just having as far back as the Song dynasty culinary art spirit of " low baking temperature is slow to be stewed " that the Soviet Union and Eastern Europe slope emphasizes.Ad shown in Figure 1, ae, af line segment are represented the culinary art curve of soup congee, meat, food such as difficult ripe respectively.

Further specify the inventive features of " nearly boiling point power switches " below by embodiment.One of embodiment, Fig. 2 has provided the bottom of a pan heating of multifunction energy-saving electrothermal pot and the structure of control section, and wherein (1) is the heat conduction cap, and (2) are the temperature-sensitive magnetically soft steels, (3) be magnetically hard steel, (4) be the magnetically hard steel seat, (5) are the take-off springs, and (6) are straight connecting rods, (7) be cross bar, (8) be nearly boiling point contact switch JK, (9) are power controllers, and (10) are the temperature-sensitive magnetically soft steels, (11) be magnetically hard steel, (12) be the magnetically hard steel seat, (13) are the take-off springs, and (14) are straight connecting rods, (15) be cross tube, (16) be boiling point contact switch GK, (17) are electric hot traies, and (18) are interior pots.Fig. 2 has omitted and the irrelevant part of function.Can see centre bore portion from Fig. 2 at electric hot tray (17), be provided with by temperature-sensitive magnetically soft steel (2), magnetically hard steel (3), temperature-spring displacement transducer J that magnetically hard steel seat (4) and take-off spring (5) are formed, this sensor is owing to being to bounce when kettle temperature is warming up near boiling point, so be named nearly boiling point sensor J.This is the principal character that the present invention proposes according to the long cooking culture of China.The temperature of nearly boiling point sensor J by interior pot (18) bottom of heat conduction cap (1) impression reaches nearly boiling point sensor J when bouncing temperature, and take-off spring (5) is being with magnetically hard steel (3), and magnetically hard steel seat (4) is finished downward displacement saltus step together.The straight connecting rod (6) of this saltus step below magnetically hard steel seat (4) of nearly boiling point sensor J, cut off nearly boiling point contact switch JK(8 by cross bar (7)), and simultaneously power controller (9) is inserted the heater circuit of electric hot tray (17), the power of electric hot tray (17) is controlled to suitable small-power, realize that the small-power stewing is stewing, reach total power and boil the stewing purpose of stewed small-power stewing.As seen near boiling point sensor J, inserts heater circuit with power controller (9) and has constituted principal character of the present invention during near boiling point at kettle temperature.Among Fig. 2, under heat conduction cap (1), also be provided with by magnetically soft steel (10), magnetically hard steel (11), magnetically hard steel seat (12), take-off spring (13) are formed dryouies sensor, corresponding because of it with nearly boiling point sensor J, so be named boiling point sensor G, it is to accept the dryout temperature (a little more than boiling point) of meal when ripe to have produced skip displacement, through straight connecting rod (14), cross tube (15) cut off boiling point contact switch GK(16), reach the purpose of cutting off heater circuit.Obviously, cross boiling point sensor G and can only play a part in the present invention to dryout outage when meal is ripe, when culinary art soup congee meat dish, can not produce the boiling point action.Crossing boiling point sensor G has been the main effect of ripe meal outage in commercially available electric cooker, and near in the present invention boiling point sensor J has been an expanded function, saves the main effect of the energy, crosses boiling point sensor G and only plays the ripe outage effect of meal.Nearly boiling point sensor J and mistake boiling point sensor G make arranged in form such as symmetric form or coaxial type in the centre bore of electric hot tray (17) in force, and they experience interior pot (18) bottom temp by heat conduction cap (1) simultaneously.Can drive straight connecting rod (6) by sheer pole (7) right-hand member and make magnetically hard steel (3) and temperature-sensitive magnetically soft steel (2) be adhesive temperature-sensitive shape, move on cross bar (7) left end and promote cross tube (15) simultaneously and magnetically hard steel (11) is become temperature-sensitive work shape with temperature-sensitive magnetically soft steel (10) adhesive through straight connecting rod (14).Meanwhile move on the left end of cross bar (7) and the cross tube (15), also make nearly boiling point contact switch JK(8) and cross boiling point contact switch GK(16) being the path shape simultaneously, circuit is started working.Described embodiment one obviously is on the basis of commercially available ordinary electric rice cooker, sets up magnet steel formula nearly boiling point sensing J and power controller (9) and the composition multifunction energy-saving electrothermal pot.Adopt and cross the identical structure of boiling point sensor G for ease of producing nearly boiling point sensor J, the spring temperature design of the sensor J that nearly boils usually becomes to compare the spring temperature of boiling point sensor G and hangs down about 10 ℃.And power controller (9) adopts the cantilevered bimetal strip thermostat to be connected in the circuit of electric hot tray (17) usually, and its ON time is set in 1/10～1/2 power bracket usually.Can certainly adopt semiconductor diode to make the half-power device, finish the function of power controller (9).

Embodiment two: (20) are that electronic timer, (21) are that time control button, (22) are that acousto-optic shows, (23) are that driver, (24) are pre-regularly buttons in Fig. 3.In Fig. 3, use butterfly shaped dual metal sheet temperature controller (19) as nearly boiling point sensor J; Still use the cantilevered bimetal strip thermostat as power controller (9); Save and cross boiling point sensor G among the embodiment one, boil when finishing and the power down function when dryouting because it can only finish rice.Change by electronic timer (20) and finish the control that culinary art finishes.Like this, saved ordinary electric rice cooker button controller, very significance has been arranged improving product appearance.Electronic timer (20) can adopt timing integrated circuit to make, should be according to the culinary art needs, with touch trigger time control button (21) rice, soup congee, the difficult ripe time stepping of meat are arranged on the panel, the output of electronic timer drives acousto-optic and shows (22), and the indication culinary art finishes; Or the heater circuit that drives driver (23) cut-out electric hot tray (17) finishes culinary art.Certainly timing integrated circuit can also be used as pre-timing and wait the culinary art beginning, and pre-regularly button (24) is can be with the time control button (21) of control cooking time unified design rational outward appearance.

Embodiment three: in Fig. 4, (25) are contact springs, and (26) are stops, and (27) are bimetal leafs, and (28) are zero fine settings, and (29) are the power fine settings, and (30) are drive rods.In embodiment three, still select for use magnet steel to make nearly boiling point sensor J, control nearly boiling point contact switch JK(8 by straight connecting rod (6) and cross bar (7) equally) in the movable contact of band energy-stored spring and the break-make of fixed contact, in addition by power fine setting (29) same purpose on the drive rod (30) of bimetal leaf (27) left end of good thermo-contact being arranged at nearly boiling point contact switch JK(8 with electric hot tray) on the movable contact of band energy-stored spring, realize that power controller (9) controls the purpose of power.Its operation principle is that the direction that is provided with of bimetal leaf (27) is that the left end head is downward after the preheating, the displacement of drive rod (30) does not influence nearly boiling point contact switch JK(8) the break-make situation, have only when bimetal leaf (27) temperature nearly drops to 100 ℃, power fine setting (29) on the drive rod (30) is subjected to bimetal leaf (27) deformation effect, make nearly boiling point contact switch JK(8) conducting, make electric hot tray (17) keep the necessary temperature of culinary art.Contact spring in the present embodiment (25) is to guarantee that heat conduction cap (1) contacts well and establishes with interior pot (18) bottom, omits in Fig. 2, Fig. 3 and does not draw.Nearly boiling point sensor J in the present embodiment compares with Fig. 2 increases stop (26), its effect is after temperature-sensitive magnetically soft steel (2) and magnetically hard steel (3) are heated the loss of excitation spring, by stop (26) with the distance limit of temperature-sensitive magnetically soft steel (2) and magnetically hard steel (3) distance of adhesive mutually after their cooling recovery magnetic.Like this, the back spring of being heated of nearly boiling point sensor J, the action of adhesive again after the cooling is by straight connecting rod (6), the nearly boiling point contact switch JK(8 of cross bar (7) control) break-make, finish temperature control.The temperature control of pot (18) bottom in embodiment three, by control realizes to the temperature of electric hot tray (17), and the control of electric hot tray (17) by the nearly boiling point sensor J of pot (18) bottom temp in accepting and accept that the bimetal leaf (27) of electric hot tray (17) self temperature forms " or " logic control.With the nearly boiling point sensor of magnet steel formula J, made into to automatically reset by the manual reset among the embodiment one, form nearly boiling temperature controller, the temperature of interior pot (18) bottom can be controlled at nearly boiling spread.Therefore, even power fine setting (29) is transferred to the maximum energy-saving power condition, can be because of factors such as the environment for use temperature are too low yet, cause the temperature of interior pot (18) bottom to be lower than the control temperature of nearly boiling point sensor J.Designed among the embodiment three " or " logic control, to developing the culinary art spirit of " low baking temperature is slow to be stewed, and does not allow steam release, and does not allow fragrance run away " emphasized in the Chinese long cooking culture, particularly important in modern electric cooker.

Embodiment four, adopt pottery or boccaro to make interior pot (18) in the present embodiment, adopt nearly boiling point sensor of magnet steel formula and bimetal strip thermostat to form nearly boiling point power switching controls.Because this pottery or boccaro electric food warmer are used for doing for a long time " low baking temperature is slow to be stewed ", so can omit time controller usually more.Present embodiment is because the material of interior pot (18) adopts relatively poor pottery or the boccaro of heat conductivility, so its electric heating design is different from the embodiment that adopts metal material to make interior pot (18), it is more lower slightly that the temperature-sensitive curie point of the nearly boiling point sensor of its magnet steel formula should design.

The present invention in force, the available spring temperature of design of nearly boiling point sensor J is advisable about 90 ℃ corresponding to interior pot (18) bottom temp, in existing manufacturing a finished product, there is electric water-boiling device can substitute, can controls the spring temperature effectively and change the magnetic steel material composition with the magnet steel sensor.Crossing boiling point sensor G can be with having the magnet steel formula temperature control outage sensor that commercially available ordinary electric rice cooker is used now, structurally be installed in the centre bore with magnet steel temp sensing type nearly boiling point sensor J or the nearly boiling point sensor of dish-shaped dual metal type J as desiring, its geometry can be adjusted accordingly.Stop (24) among the nearly boiling point sensor of the formula that the automatically resets magnet steel J can meet the demands with common mechanical means positioning limit, generally controls spacing distance several millimeters magnitude.Bimetal leaf among the embodiment three (27), nearly boiling point contact switch JK(8), the all available electric cooker of zero fine setting (28) is reequiped with the part of warmer, at design cross bar (7), drive rod (30), during the fastening insulating part of power fine setting (29) and corresponding heat conduction, all get final product by general electric heater requirement design.

But embodiment all adapted by timing integrated circuit and the electronic timer formed of input button, as described in embodiment two.Obviously, electronic timer (20) also can be replaced by electronic timer or mechanical timer, with the function and energy-conservation the reaching a new high of electric cooker, make that this magnet steel temperature control mode is equipped with timer again after, still can be in the highest flight at the produce market of electric cooker from now on.

Nearly boiling point power transfer method among the present invention, be under the culinary art spirit of " low baking temperature is slow to be stewed " instructs, to propose, come down to nearly boiling point culinary art, the Yunnan steaming pot chicken that China is famous, steamed Nanjing duck cutlets, Braised Dongpo Pork Hock with Brown Sauce etc. are all cooked under nearly boiling point, and nearly boiling point culinary art can make the delicious maintenance of food nutrition, can save a large amount of energy again, be modern science and technology and cultural the combining of culinary art.

The embodiment that the present invention proposes all is the components and parts that adopt present household electric appliances to produce in batches, as magnet steel formula temperature controller, the butterfly shaped dual metal sheet temperature controller, cantilevered bimetal strip thermostat, semiconductor diode, the integrated circuit timer, electronic timer, mechanical timer etc., the batch of these embodiments reproduces, characteristics such as have technical maturity, components and parts are reliable, and cost is low, its product will occupy the leading market of electric cooker as general level type new generation product.

Claims

1, a kind of multifunction energy-saving electrothermal pot, the described electric cooker that adopts nearly boiling point power transfer control and timer control to heat is characterized in that:

A. described nearly boiling point power transfer control is to control nearly boiling point contact switch JK[8 by nearly boiling point sensor J] be converted to power controller [9] and finish;

B. described nearly boiling point sensor J is by temperature-sensitive magnetically soft steel [2], magnetically hard steel [3], magnetically hard steel seat [4], the magnet steel formula that take-off spring [5] and straight connecting rod [6] are formed, or the double-metal sheet type of being made up of butterfly shaped dual metal sheet temperature controller [19];

C. described power converter [9] is made up of the cantilevered bimetal strip thermostat, or by partly leading the half-power device that diode is formed.

2, multifunction energy-saving electrothermal pot according to claim 1, it is characterized in that: by temperature-sensitive magnetically soft steel (2), magnetically hard steel (3), magnetically hard steel seat (4), take-off spring (5), the nearly boiling point sensor of the reducible magnet steel formula J that straight connecting rod (6) and stop (26) are formed, by cross bar (7) and bimetal leaf (27), zero fine setting (28), power fine setting (29), drive rod (30) is controlled nearly boiling point contact switch JK(8 jointly), realize nearly boiling point power transfer control.

3, multifunction energy-saving electrothermal pot according to claim 1 is characterized in that: described nearly boiling point power transfer control is the nearly boiling point sensor J that made by butterfly shaped dual metal sheet temperature controller (19) and made power controller (9) by the cantilevered bimetal strip thermostat and realize.

4, multifunction energy-saving electrothermal pot according to claim 1, it is characterized in that: described timer is the electronic timer of being made by timing integrated circuit (20), is provided with time control button (21), acousto-optic demonstration (22), driver (23), pre-regularly button (24); Electronic timer (20) can also be made by electronic timer or mechanical timer, finishes cooking time control.