CN2602576Y

CN2602576Y - Electric heating plate

Info

Publication number: CN2602576Y
Application number: CN 03223432
Authority: CN
Inventors: 薛小民
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-29
Filing date: 2003-01-29
Publication date: 2004-02-04
Anticipated expiration: 2013-01-29

Abstract

The utility model discloses an electric hot tray whose tray surface is cut down or half separated into a main heating block and a small heating block, the main heating block can cook and heat, the area of the small heating block takes less than forty five percent of the general area, the utility model can heat the local region of the pot for forming the convectively rolling of the liquid food, which can cook soups, porridges and medicines.

Description

A kind of electric hot tray

The utility model is a kind of electric hot tray, particularly a kind of card is cut off or half point is divided into main heating piece and little heating piece, its main heating piece can cook and heat, its little heating piece area accounts for the card gross area below 45%, the liquid material convection current rolls but the regional area of heating kettle is to form, electric hot tray that can cooked soup congee medicine.

Electric rice cooker is a kind of electric heating cooker of cooking, and is made up of pot body and electrothermal device, and its pot body comprises outer pot, interior pot, and its electrothermal device mainly comprises electric hot tray, magnetic steel temperature limiter or temperature sensor, circuit, thermostat and timer.The electric hot tray of electric rice cooker is generally made by the tubular electrothermal element cast aluminum alloys, mechanical strength and thermal conductivity are well arranged, its profile is generally the disk of middle part dimpling, the hole is arranged in the middle of the disk, can allow the top of magnetic steel temperature limiter or temperature sensor from the hole, be exposed to electric hot tray above come pot thermometric in the contact.The electric rice cooker electric hot tray also has disc-shaped, and some of them disc-shaped electric hot tray is equipped with the tubular electrothermal element at the bottom of except dish, and the dish side also adds a circle electric heater.Along with volume is little.The application of the temperature element that certainty of measurement is high, card do not have the hole or have the electric hot tray of duck eye to appear at market.

The operation principle of electric rice cooker is: the electric hot tray heating power, make to fill rice and the interior pot temperature of water and progressively raise and cook, water seethes with excitement in the time of 100 ℃, when the water in the pot gradually reduces rice when cooked substantially, the pot temperature continues to rise to 103 ℃, and magnetic steel temperature limiter will cut off heater circuit this moment.When interior pot temperature was reduced to 65 ℃, thermostat was connected the circuit insulation, disconnects when temperature is elevated to 75 ℃ again, and moving in circles reaches the insulation purpose.Electric rice cooker is practical and convenient, and it is satisfactory for result to cook.But the effect of boiling soup congee or Chinese medicine with electric rice cooker is undesirable.Because want cooked soup congee medicine, just should boil and use little fire heating after rolling instead at soup congee medicine, its firepower surpasses 93 ℃ and soup congee medicine appropriateness is rolled be as the criterion to guarantee the pot temperature.This function is that existing sale of electricity pot for cooking rice is not available.

The purpose of this utility model provides a kind of electric hot tray with cooked soup congee medicine function.

The purpose of this utility model reaches like this: make electric hot tray, its card by cut off or half point every main heating piece and little heating piece two parts constitute, the area of its little heating piece accounts for the card gross area below 45%, the packaged electroheat member that has more than 250 watts of its main heating, its little heating is packaged the electric heater of power more than 25 watts, and electric heater can be the PTC parts, or the Electric radiant Heating Film parts, or the tubulose electroheat member, electric heater can have thermostat.

The utility model electric hot tray can be used for electric rice cooker, and its main heating piece can cook and heat, and its little heating piece can make the interior liquid material of pot produce convection current and roll the regional area heating in the bottom of a pan.The utility model electric hot tray also can be done the electrothermal device of electric-heating cooking utensils such as saucepan.

The utility model utilization cut off or half point every, both guarantee the heating function of main heating piece, guaranteed little not horizontal proliferation of electric hot plate heat again, concentrated subregion, heating kettle bottom, so that formation soup congee medicine rolls and don't overflows the outer convection current of pot, finish the task of cooked soup congee medicine.

Below in conjunction with accompanying drawing the utility model is done concrete the introduction.

Fig. 1 is the schematic diagram of a kind of embodiment of the utility model

Fig. 2 is the schematic cross-section of a kind of embodiment of the utility model

Fig. 3 is the schematic diagram of the another kind of embodiment of the utility model

Fig. 4 is the schematic cross-section of the another kind of embodiment of the utility model

Fig. 5 is the electrical schematic diagram of a kind of embodiment of the utility model when being applied in a kind of electric rice cooker

With reference to Fig. 1. Fig. 2, the electric hot tray of present embodiment [1] is the cast aluminum alloys goods, lacks the main heating piece [2] of shape and little heating piece [3] two parts of fan-like pattern constitute by circle, and interval [4] .[5 of 1.2 centimetres of width is arranged between two parts] the cutting off of formation.Below its main heating piece [2] 500 watts tubular electrothermal element [6] is housed.Below its little heating piece [3] 90 watts of power are housed, the aluminum hull dress envelope PTC heating core parts [7] that Curie-point temperature is 160 ℃.The magnetic steel temperature limiter hole [8] that 3.5 centimetres of diameters are arranged in the middle of the electric hot tray of present embodiment [1].

When present embodiment was used in electric rice cooker, its main heating piece [2] can be used to cook or adds hot soup congee spice, and its little heating piece [3] can be implemented heating to a regional area of pot, and a pot interior liquid generation convection current is rolled.

With reference to Fig. 3. Fig. 4, the electric hot tray of present embodiment [11] is cast aluminum alloys goods, constitute by generate heat little heating piece [13] two parts of piece [12] and small circular of annular master, the groove [14] that the annular of 2.5 centimetres of one width is arranged between two parts, the bottom [15] of groove [14] connects, therefore form half point every.Below the main heating piece [12] of present embodiment 500 watts tubular electrothermal element [16] is housed, 100 watts tubular electrothermal element [17] is housed below the little heating piece [13].As figure, the temperature sensor hole [18] of 0.8 centimetre of a diameter is arranged in the middle of the electric hot tray [11].

Fig. 5 is the electrical schematic diagram of a kind of embodiment when being applied in a kind of electric rice cooker.S1 among the figure be cook circuit with boil soup congee medicine contactor, S2 is a magnetic steel temperature limiter, S3 is the automatic heat preserving thermostat of cooking, S4 boils soup congee medicine heating use thermostat, R1 is to lead the piece electroheat member that generates heat, R2 is little heating piece electroheat member.As figure, switch S 1 can be switched on or switched off cooks circuit and boils soup congee medicine circuit, and these logical those break.The part that the with dashed lines frame comes out among the figure is with now the circuit of cooking with automatic thermal insulation electric rice cooker is identical.When soup congee medicine circuit was boiled in switch S 1 connection, electroheat member R1 of its main heating piece was controlled by thermostat S4, and heating when temperature is lower than 75 ℃ stops heating when temperature is higher than 90 ℃.Its little heating piece electric heater R2 then connects all the time, the regional area at the bottom of the heating kettle.

Claims

1. electric hot tray, the card that it is characterized in that electric hot tray by cut off or half point every main heating piece and little heating piece two parts constitute, the area of its little heating piece accounts for the card gross area below 45%, the packaged electroheat member that has more than 250 watts of its main heating, its little heating is packaged the electric heater of power more than 25 watts.

2. by the described electric hot tray of claim 1, it is characterized in that electric heater is the PTC parts.

3. by the described electric hot tray of claim 1, it is characterized in that electric heater is the Electric radiant Heating Film parts.

4. by the described electric hot tray of claim 1, it is characterized in that electric heater is the tubulose electroheat member.

5. by the described electric hot tray of claim 1, it is characterized in that electric heater has thermostat.