KR101032793B1 - Vacuum apparatus for electric cooker - Google Patents

Abstract

The present invention is a vacuum thermostat of an electric cooker includes a pot sieve, inner pot, inner pot lid, outer pot lid, pot lid rotating shaft, pot lid opening and closing button, bottom heater, side insulation heater, pot lid insulation heater and operation panel. A solenoid valve is installed inside the pot lid, and a pump having an air outlet and an air hole is connected to the outside of the pot body. The solenoid valve is connected to the inner pot rigid body and connected to the air outlet of the pump. On the outer pot lid there is also a control switch that controls the solenoid valve and pump operation. Through the above structure, the present invention has improved the lack of the conventional electric rice cooker function. Before cooking the food, the air in the pot is first drawn out to a vacuum so that the food and water in the pot can be mixed rapidly and the food is prevented from decaying or oxidizing even when the reserved operation time is long. In addition, when food is heated, it is changed to a high pressure state, and food is cooked at a high speed to save energy. The air is then evacuated and vacuumed to keep food and water fresh all the time, and to prevent decay and oxidation. The structure is simple, reliable and easy to use.

Cookware, Vacuum Insulation, Solenoid Valve, Air Outlet, Pump, Pressure Discharge Valve

Description

Vacuum apparatus for electric cooker {Vacuum apparatus for electric cooker}

1 is a schematic diagram illustrating the cross-sectional structure of a pressure electric rice cooker according to the first embodiment of the present invention.

1A is an enlarged partial view of a solenoid valve of the present invention.

Figure 2 is a schematic diagram illustrating the cross-sectional structure of a general electric rice cooker of a second embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: cooking pot 11: internal pot

12: inner pot lid 13: outer pot lid

14: pot lid rotating shaft 15: pot lid opening and closing button

16: Bottom heater 17: Side insulation heater

18: pot lid insulation heater: 19: operation panel

20: solenoid valve # 21: first opening

22: 2nd opening 25: valve

26: electric magnet 30: pump

31: air outlet 32: air hole

40: pressure discharge passage 41: pressure discharge valve

50: pump box

TECHNICAL FIELD The present invention relates to the technical field of electric appliances for home appliances, and in particular, an electric cooker vacuum thermostat.

The spread of household appliances and the renewal of technology have made the functions of many household appliances perfect for the convenience of users. Currently, people are cooking using an electric rice cooker, and his simple thermal insulation is loved by people.

In general, however, there is a lack of vacuum in the rice cooker before boiling, so food and water cannot be mixed rapidly. Thus, the boiling time is relatively long. When food enters a warm state after ripening, the food will grow and rot very quickly by combining bacteria with oxygen in the air as time passes.

Therefore, it is necessary to solve this problem by providing a high pressure electric rice cooker vacuum thermostat and applying it to a pressure electric rice cooker.

Thus, the present inventor combines long-term experience and wisdom in this industry to solve the above-mentioned defects of the conventional electric cooker, studies hard and creates new ones, finally making them more practical, wider in scope, and more suitable for industrial use. Successfully researched and developed the vacuum thermostat of the electric cooker.

The object of the present invention is reliable, easy to use and saves energy in consideration of the shortcomings of the prior art, make the food and water quickly mix by making the air to extract the vacuum before cooking food, to change the high pressure during cooking And, it is to provide a vacuum thermostat of the electric cooker to extract the air at the time of warming, and to prevent the decay or oxidization of food under the state of warming for a long time.

In order to achieve the above object, the present invention includes a pot sieve, an inner pot, an inner pot lid, an outer pot lid, a pot lid rotating shaft, a pot lid opening and closing button, a bottom heater, a side insulating heater, a pot lid insulating heater, and an operation panel, and the inside of the inner pot lid One solenoid valve is installed at the outside, and a pump having an air outlet and an air hole is connected to the outside of the pot body. The solenoid valve, the inner pot rigid body, and the air outlet of the pump are connected to each other. On the outer pot lid is also provided with a control switch for controlling the solenoid valve and the pump operation.

Through the above structure, install a solenoid valve in a suitable place of the pot lid, and the solenoid valve circumscribes the pressure discharge hole of the pump and starts the solenoid valve before cooking food, and also starts the pump to extract the air in the pot. It allows the food and water to be quickly mixed by creating a kind of vacuum state. When heated, it generates a high pressure quickly to allow food to be cooked rapidly. After the food is cooked, start the solenoid valve and start the pump to extract the air in the pot to create a vacuum state in the pot to prevent food from warming up during the warming operation. . The present invention has a feature that can be applied to a pressure electric rice cooker because the structure is reliable, easy to use, saves energy and prevents food from decaying or oxidizing with a long reservation warm time.

The above object, structure, and functional features of the present invention will be described with reference to comparative examples of the accompanying drawings.

First, as shown in Figures 1 and 2 the present invention is a pot sieve 10, inner pot 11, inner pot lid 12, outer pot lid 13, pot lid rotating shaft 14, pot lid opening and closing button 15 ), The bottom heater 16, side insulation heater 17, the pot lid insulation heater 18 and the operation panel 19, one solenoid valve 20 is installed inside the pot lid, the pot sieve ( A pump 30 having an air outlet 31 and an air hole 32 is connected to the outside of 10.

The first opening 21 of the solenoid valve 20 and the rigid body of the inner pot 11 are connected to each other, and the second opening 22 and the air outlet 31 of the pump 30 are connected to each other. On the outer pot lid 13, a control switch for controlling the operation of the solenoid valve 20 and the pump 30 is installed.

The above-mentioned electric rice cooker is a pressure electric rice cooker, there is a pressure discharge passage 40 connected to the inner pot lid 12 and the outer pot lid 13 through one connected, one pressure on the outer outlet side of the pressure discharge passage 40 A discharge valve 41 is provided.

The solenoid valve 20 (see FIG. 1A) includes a first opening 21, a second opening 22, a valve 25 and two electromagnets 26, each of which is provided in the valve 25. Second openings 22 are provided, and the two electric magnets 26 are provided on both sides of the second openings 22, respectively.

The solenoid valve 20 is installed at the bottom of the inner pot lid 12. The pump box 50 used to install the pump 30 is connected to the side of the pot sieve 10 is connected. The control switch for controlling the operation of the solenoid valve 20 and the pump 30 is installed in the pot lid opening and closing button 15.

In use, as shown in FIG. 1, before cooking, the second opening 22 of the solenoid valve 20 is opened, and the air in the inner pot 11 is extracted to the air outlet 31 of the pump 30 so that the pot is vacuumed. This leads to a state where food and water are sufficiently mixed at high speed.

When food in the pressure electric rice cooker starts to heat, the outside air first enters the pot sieve, and a high pressure state is generated in the pot. The solenoid valve 20 installed in the pot lid controls the pressure discharge hole 131 and the air outlet 31 of the pump 30 so as to be in a closed state to ensure that the pressure does not leak so that the food is cooked at high speed. do.

And after the food is cooked in order to prevent the food from rotting too quickly, the pressure discharge valve 41 is opened by closing the pressure discharge valve 41 which is opened after the pressure discharge valve 41 is finished. Press the pot lid opening and closing button 15 again to operate the control switch to open the second opening 22 of the solenoid valve 20. At the same time, the pump 30 on the side of the pot sieve 10 is started to allow air in the inner pot to be discharged through the air outlet 31.

When a certain negative pressure is reached, the second opening 22 of the solenoid valve 20 automatically closes, causing the inner pot 11 to form a certain degree of vacuum so that the electric cooker is kept warm for a long time. It is possible to prevent foods from rotting or soaking during warming. When you try to take out the food, you can use the food again by pressing the pot lid opening and closing button (15).

In addition, when the food in the general electric rice cooker starts to heat as in the embodiment shown in Figure 2, the pressure discharge hole 131 in the outer pot lid 13 is in an open state to prevent the pressure is too high. After the food is cooked, the second opening 22 of the solenoid valve 20 is opened to communicate with the air outlet 31 to discharge the air in the inner pot rigid body.

When a certain negative pressure is reached, the solenoid valve 20 closes the second opening 22 and closes the air outlet 31 of the pump 30 to maintain a certain degree of vacuum in the inner pot 11 body. It prevents food from decaying and oxidizing in a state of warming for a long time. When trying to take out the food, press the pot lid opening and closing button 15 again, the pressure discharge hole 131 is opened, the air enters the inner pot 11 body, the inner pot lid 12 and the outer pot lid 13 is opened. . When the pot lid opening and closing button is pressed again on the inner pot lid 12 and the outer pot lid 13, the pump 30 is automatically started and automatically stops after removing the air in the pot. It is very convenient to use this cycle.

In the above, the present invention improves the shortcomings of the conventional electric rice cooker function to rapidly combine food and water so that food is cooked quickly. At the same time and when the food is in the warming for a long time, poor ventilation or temperature is too high to prevent the food from easily rot or oxidize. In addition, by extracting the air into a vacuum to effectively extract the air bacteria to mitigate the growth of bacteria in the pot can delay the time that the food during rot decay or oxidize. The structure is simple, reliable and easy to use. Therefore, it has the novelty and progressiveness of industrial use value and meets the patent requirement.

What has been described above is only a relatively good embodiment of the present invention. All changes made using the method, shape, structure, and apparatus described in the present invention shall fall within the scope of the present invention.

Claims (5)

Pot sieve (10), inner pot (11), inner pot lid (12), outer pot lid (13), pot lid rotating shaft (14), pot lid opening and closing button (15), bottom heater (16), side insulation heater (17), In the vacuum thermostat of the electric cooker comprising a pot lid heat insulating heater 18 and the operation panel 19, The solenoid valve 20 is installed inside the outer pot lid, and a pump 30 having an air outlet 31 and an air hole 32 is connected to the outside of the pot body 10, and the solenoid valve 20 The first opening 21 of) is connected to the rigid body of the inner pot 11, the second opening 22 and the air outlet 31 of the pump 30 is also connected to the On the surface of the outer pot lid 13, a control switch for controlling the operation of the solenoid valve 20 and the pump 30 is installed, Before the food is cooked, the solenoid valve 20 and the pump 30 are operated by the control switch so that the air of the inner pot 11 is opened in the first opening 21, the second opening 22, and the air outlet ( 31) by vacuuming the inner pot (11) while being discharged to the outside through the vacuum thermostat of the electric cooker, characterized in that the food and water in the inner pot to be quickly mixed. The method of claim 1, wherein when the food is heated in the inner pot 11, the inner pot is changed to a high pressure state by the operation control of the solenoid valve 20 and the pump 30, characterized in that the food is cooked at high speed. Vacuum thermostat of electric cooker. The method of claim 1, wherein when cooking the food warming operation of the inner pot 11, the inner pot is in a vacuum state by the operation of the solenoid valve 20 and the pump 30, the food is oxidized even in the cooking utensils of long-term warming Vacuum thermostat of the electric cooker, characterized in that to prevent being. The method according to claim 1, wherein the pot lid opening and closing button 15 is installed on the outer pot lid 13, by opening the outer pot lid 13 by the pot lid opening and closing the vacuum is automatically released, the outer pot lid 13 Cover the vacuum 30 of the electric cooker, characterized in that the pump 30 automatically draws the air in the pot again to be a vacuum. The vacuum thermostat of claim 1, wherein the electric cooking apparatus having the vacuum thermostat is a steamer, an electric heat insulating bucket, an electric rice cooker, or an electric frying cooker.

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