KR102230162B1 - Rice cooker - Google Patents

Abstract

The present invention relates to an automatic rice cooker to automatically cook rice by remaining the amount of water matched with the amount of rice being washed and cooked. According to the present invention, the automatic rice cooker comprises: a rice cooker main body having an outer pot configured to apply heat to a cooking space through an electric heater that receives power through control of a control means configured to control the power of a power supply unit to generate the heat; and an inner pot disposed while being received in the outer pot of the rice cooker main body and having a rice cooking space in which the rice and water are received. Moreover, the automatic rice cooker comprises: a water supply pipe provided in the rice cooker main body and spatially connected to a water supply source (water pipe, etc.) to supply the water to the inner pot; a water supply valve provided in the water supply pipe and configured to open and close the water supply pipe through electrical control of the control means; a drain pipe provided in the rice cooker main body and configured to spatially connect the inside of the inner pot and the outside of the rice cooker main body to drain the water filled in the inner pot to the outside; a drain valve provided in the drain pipe and configured to open and close the drain pipe through the electrical control of the control means; a drain pump provided in the drain pipe and driven through electrical control of the control means to forcibly drain the water filled in the inner pot to the outside; an air supply pipe provided in the rice cooker main body and configured to supply external air to the inner pot; and an air supply valve provided in the air supply pipe and configured to open and close the air supply pipe through the electrical control of the control means.

Description

Automatic cooking rice cooker {Rice cooker}

The present invention relates to a rice cooker in which rice is prepared by cooking by applying heat while receiving water and rice, and more particularly, the amount of water to be adjusted to the amount of rice washed and cooked through electrical control. It relates to an automatic cooking rice cooker that maximizes the convenience of use by cooking rice by applying heat after leaving the rice cooked.

In general, an electric pressure cooker, which is one of the cooking devices, increases the pressure in the inner pot by heating the inner pot arranged in a closed space by an electric heater, so that rice that is not well boiled at normal pressure is cooked in a short time. It is an article.

In this electric pressure cooker, the inner pot is accommodated in the outer pot of the main body, and the inner pot is sealed by covering the main body and the inner pot with a lid; In a state in which rice and water to be cooked are put into the inner pot, power is applied to a heater built in the main body to heat it while cooking rice.

That is, the outer pot of the main body is electrically heated to create a high temperature, and the high temperature generated in the outer pot is transferred to the inner pot to heat rice and water to cook rice.

In such an electric pressure cooker, a pressure control device (or a steam discharge device) is installed on the lid of the main body to adjust the pressure inside the inner pot, thereby adjusting the pressure of the inner pot.

That is, when the inside of the inner pot is excessively high pressure, the pressure of the inner pot is controlled by discharging the excessive pressure to the outside.

Such an electric pressure cooker is cooked by varying the heating temperature and the ratio of water according to the cooking characteristics according to the type of rice to be cooked, such as white rice, brown rice, and mixed grains.

On the other hand, conventionally, in the case of cooking rice, the user directly rinses the rice in the washing water and puts it in the inner pot of the electric pressure cooker. The rice is cooked through the supply control.

In the above, the input of power to the electric heater is to be supplied according to data set by the control means configured to control the power supply of the power supply, and the set data of the control means include rice cooked such as white rice, brown rice, grains, etc. Each of the heating conditions of the electric heater may be configured to include data to be selectively formed according to the cooking characteristics according to the type of.

However, in the conventional rice cookers as described above, there is a problem in that the convenience of cooking is deteriorated as the operation of manually washing the rice with washing water by the user is performed by hand.

Accordingly, rice cookers have been proposed so that the user does not wash the rice individually through washing water, but automatically cleans the rice through electrical control, thereby promoting the convenience of work.

As one of them, there is a rice cooker known in Korean Patent Application No. 10-2000-0079397 (name: fully automatic rice cooker/2000.12.20.), and as known in the publication, a rice cooker capable of washing, cooking, and keeping warm rice is possible. In the case, a rice container for storing rice and an electronic solenoid valve for automatically injecting rice into the washing part, a solenoid valve for controlling the amount of water supplied through the water supply pipe, a washing container installed in the middle to wash rice, and a rotating plate of the washing part A washing drive motor that is connected with a belt and turns the rotating plate, a pressure sensor installed at the bottom of the washing unit to detect the weight of rice and water, a solenoid valve attached to the washing unit to send water and rice to the rice cooker, and a rice cooker unit that enables cooking A fully automatic rice cooker is described that includes a lid and a driving motor that discharges the rice cooker after cooking is finished, and a microprocessor system that controls all of these.

On the other hand, in Korean Patent Application No. 10-2009-0062405 (name: automatic rice cooker/2009.07.09.), as known in the publication, a cross-shaped rotor is installed over the inside and outside of the electric rice cooker. When the motor is installed just below the outside of the rice cooker and the motor rotates and generates power, the rotation axis of this motor and the axis of the rice-washing rotor are connected by wires outside the rice cooker, and the power of the motor is transmitted to the rice-washing rotor. An automatic rice cooker is described in which the rotor moves up and down and left and right to wash the rice.

Korean Patent Application No. 10-2000-0079397 (2000.12.20.) Korean Patent Application No. 10-2009-0062405 (2009.07.09.)

However, the conventional self-cooking rice cookers as described above have a complicated structure and are uneconomical. In particular, when washing rice, a rotor, etc., which collides with the rice and is stirred, is disposed in the space where the rice is cooked, which is unsanitary. There was a problem.

The present invention has been proposed to solve the conventional problems as described above, and the object of the present invention is structurally simple and economically provided, and the arrangement of separate utensils in the cooking space in which rice is cooked is unnecessary. In addition to cooking hygienically, in particular, the amount of water remaining in accordance with the amount of rice that is washed and cooked through electrical control is maintained, and then the rice is cooked by applying heat, maximizing the convenience of use. It is in serving rice cookers.

The automatic cooking rice cooker according to the present invention for achieving the object of the present invention as described above is supplied with power through the control of a control means configured to control the power of the power supply and applies heat to the cooking space through an electric heater that generates heat. A rice cooker body having an outer pot made to be; In an automatic cooking rice cooker comprising: an inner pot disposed while being accommodated in the outer pot of the rice cooker body and having a cooking space for rice in which rice and water are accommodated; A water supply pipe provided in the rice cooker body and spatially connected to a water supply source (water pipe, etc.) to supply water to the inner pot; A water supply valve provided in the water supply pipe and configured to open and close the water supply pipe through electrical control of the control means; A drain pipe provided in the rice cooker body and configured to spatially connect the inside of the inner pot and the outside of the rice cooker body to drain the water filled in the inner pot to the outside; A drain valve provided in the drain pipe and configured to open and close the drain pipe through electrical control of the control means; A drain pump provided in the drain pipe and driven through electrical control of the control means to forcibly drain the water filled in the inner pot to the outside; A supply pipe provided in the rice cooker body and configured to supply external air to the inner pot; And an air supply valve provided in the air supply pipe and configured to open and close the air supply pipe through electrical control of the control means.

The automatic cooking rice cooker according to the present invention made as described above is structurally simple and has an effect that can be provided economically.

In addition, since it is not necessary to arrange separate appliances (rotators, etc.) in the cooking space of the inner pot in which rice is cooked, it has the effect of hygienic cooking.

In addition, it has the effect of maximizing the simplicity of cooking by automatically implementing the washing of rice through the supply and drainage of water supplying air to the inner pot through electrical control according to the data set in the control means.

In addition, by draining water through the drain pipe and adjusting the position of the drain inlet of the drain pipe, the amount of water that matches the amount of rice cooked remains, thus maximizing the convenience of use in the cooking process of cooking rice by applying heat. Has an effect.

1 is a schematic illustration showing an automatic cooking rice cooker according to an embodiment of the present invention.
2 is a schematic illustration of a partial excerpt showing an automatic cooking rice cooker according to the present embodiment.
3 to 5 are schematic diagrams showing a state of use of an automatic cooking rice cooker according to the present embodiment.
Figure 6 is a schematic illustration showing the operating state of the water pipe constituting the automatic cooking rice cooker according to the present embodiment.
7 is a schematic illustration showing a control state of the automatic cooking rice cooker according to the present embodiment.

Hereinafter, an automatic cooking rice cooker according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 to 7 is a view showing an automatic cooking rice cooker 1 according to an embodiment according to the present invention, the automatic cooking rice cooker 1 according to the present embodiment, the operation of the user's operation switch 31 Outer pot 22 configured to apply heat to the cooking space through an electric heater 21 that receives power and generates heat through the control of the control means 3 configured to control the power of the power supply unit (power terminal) 32 according to the following. A rice cooker body (2) having a; And an inner pot 23 which is disposed while being accommodated in the outer pot 22 of the rice cooker body 2 and has a cooking space for rice in which rice and water are accommodated.

That is, when a user selectively manipulates the operation switch 31 while the inner pot 23 is accommodated in an amount of water suitable for a ratio of rice and the input amount of the rice, the control means 3 ) To generate heat by controlling the power of the power supply unit 32 according to the set data of) and applying it to the electric heater 21, and the heat generated from the electric heater 21 is transmitted through the outer pot 22. It is transferred to the inner pot 23 to heat the cooking space of the inner pot 23.

Accordingly, rice and water accommodated in the inner pot 23 are heated to cook rice.

In the outer pot 22, the upper opening is opened and the upper opening is sealed and opened by a lid 24 rotatably provided in the rice cooker body 2; The inner pot 23 may have an upper opening, and the upper opening may be sealed and opened by the lid 24.

That is, each of the openings may be sealed and opened through the lid 24 while the inner pot 23 is accommodated in the outer pot 22.

In the above, the rice cooker main body 2 is provided with a pressure regulating device 25 so as to adjust the internal pressure of the inner pot 23 to adjust the pressure of the inner pot 23.

The automatic cooking rice cooker 1 according to this embodiment is provided in the rice cooker body 2 and is spatially connected to a water supply source (water pipe, etc.) (not shown) to supply water to the inner pot 23. A water supply pipe 4; And a water supply valve 41 provided in the water supply pipe 4 and configured to open and close the water supply pipe 4 through electrical control of the control means 3.

That is, when the water supply pipe 4 is selectively opened and closed through the selective driving of the water supply valve 41, the supply of water from the outside of the rice cooker body 2 through the water supply pipe 4 and the supply of water are selectively stopped. .

At this time, after putting rice to be cooked into the inner pot 23, water is injected into the inner pot 23 through the water supply pipe 4 while the inner pot 23 is closed through the lid 24. Then, the rice is washed by the water to be introduced.

In the above, the water supply pipe 4 may be connected to a water supply source composed of a'water valve of a water pipe' and spray water to the inner pot 23 through the water pressure of the water pipe.

In this case, an input pressure of water according to the water pressure of the water pipe is formed, so that the rice contained in the inner pot 23 can be washed in a high-pressure spraying situation.

On the other hand, the automatic cooking rice cooker 1 according to the present embodiment is provided in the water supply pipe 4 and is driven through the electric control of the control means 3 to forcibly supply water supplied through the water supply pipe 4. A water supply pump 42 configured to pump and high-pressure spray water into the cooking space of the inner pot 23 may be further included.

That is, when the water from the water supply source is supplied to the inner pot 23 through the water supply pipe 4, the water supply pump 42 implements high-pressure spraying of water, so that the water supply source stores water In the case of), washing of the rice accommodated in the inner pot 23 may be performed in a high-pressure spraying situation.

The self-cooking rice cooker 1 according to the present embodiment made as described above is provided in the rice cooker body 2 and spatially connects the inside of the inner pot 23 and the outside of the rice cooker body 2 to provide the inner pot 23 ) And a drain pipe 5 configured to drain the water filled in to the outside; A drain valve (51) provided in the drain pipe (5) and configured to open and close the drain pipe (5) through electrical control of the control means (3); A drain pump 52 provided in the drain pipe 5 and driven through electrical control of the control means 3 to forcibly drain the water filled in the inner pot 23 to the outside; A supply pipe (6) provided in the rice cooker body (2) and configured to supply external air to the inner pot (23); An air supply valve 61 provided in the air supply pipe 6 and configured to open and close the air supply pipe 6 through electrical control of the control means 3;

That is, in a state in which rice is washed by the water sprayed to the inner pot 23 through the water supply pipe 4 and supplied, the drain pipe 5 is controlled according to the set data of the control means 3. In the open state, the drain pump 52 is driven to drain the water contained in the inner pot 23 to the outside.

At this time, the water supply pipe (4) is maintained in a closed state through control according to the set data of the control means (3); The supply pipe 6 is opened through the opening of the supply valve 61 that is driven through control according to the set data of the control means 3, so that the vacuum state of the cooking space of the inner pot 23 is controlled. Will be released.

Accordingly, water is smoothly drained through the drain pipe 5.

On the other hand, when the water is drained through the drain pipe 5, the water level of the water remaining in the inner pot is determined according to the position of the drain inlet 53 of the drain pipe 5; The water level suitable for the type and amount of rice to be cooked is adjusted by adjusting the position of the drainage inlet 53 of the drain pipe 5.

In the above, the drain pipe 5 may be provided with a'expansion part 54' that allows the position of the drain inlet 53 of the drain pipe 5 to be vertically adjusted.

That is, the user may arbitrarily adjust the degree of expansion and contraction of the expansion and contraction unit 54 to adjust the water level suitable for the type and amount of rice cooked in the inner pot 23.

The expansion and contraction portion 54 may be formed in a'jabara tube' structure that is folded to expand and contract, and is preferably applied according to a user's selection.

The automatic cooking rice cooker 1 according to the present embodiment made as described above is provided in the rice cooker body 2 and senses the water level of the water filled in the inner pot 23, and the water level sensed by the control means 3 It may include a water level sensor 33 configured to apply data.

That is, the water level of the water filled in the inner pot 23 is sensed through the water level sensor 33, so that the amount of water supplied through the water supply pipe 4 can be selectively adjusted.

Accordingly, the excessive supply of water to the inner pot 23 is electrically limited, thereby ensuring the safety of work.

At this time, it is preferable that the water level sensing position of the water level sensor 33 is made at a position lower than the upper end of the inner pot 23 so that water does not overflow from the inner pot 23 to the outside.

The effect of the automatic cooking rice cooker 1 according to the present embodiment made as described above will be described in detail as follows.

When cooking rice through the automatic cooking rice cooker 1 according to the present embodiment, first, rice to be cooked is put into the inner pot 23, and then the inner pot 23 is placed in the outer pot 22. Inserted and accommodated in the inner pot 23, the expansion and contraction portion 54 of the drain pipe 5 is expanded and contracted to suit the amount of remaining water according to the type and input amount of rice accommodated in the inner pot 23. Adjust the position of the drain inlet 53.

In the state in which the inner pot 23 in which rice is accommodated is accommodated in the outer pot 22, when the adjustment of the expansion and contraction portion 54 is completed, the inner pot 23 and the outer pot 22 through the lid 24 ) Is closed and sealed, and then the operation switch 31 is selectively operated to select an operation condition of the data set by the control means 3 in accordance with the washing condition according to the amount of rice to be input.

When the operation switch 31 is selectively operated by the user as described above, the water supply valve 41 and the water supply pump 42 and the water supply valve 41 and the water supply pump 42 are applied according to the data set by receiving the operation signal from the control means 3. The supply valve 61, the drain valve 51, and the drain pump 52 are respectively selectively driven.

At this time, when the supply valve 61 and the drain valve 51 are closed, the drain valve 41 and the drain pump 42 selectively drive water into the cooking space of the inner pot 23. Rice is washed with high pressure spraying.

As such, while rice is being washed by high-pressure water sprayed, the water level of the inner pot 23 gradually rises according to the continuous supply of water, and when the water level sensor 33 senses the water level, the control According to the set data of the means (3), the drive of the water supply pump 42 is stopped, and the supply of water is stopped as the water supply pipe 4 is closed according to the operation of the water supply valve 41.

In addition, according to the data set in the control means (3), the supply valve (61), the drain pump (52), and the drain valve (51) are driven for a set time, respectively, and the inside of the inner pot (23) As the formed vacuum state is released, the water contained in the inner pot 23 is drained to the outside for a set time.

When the water contained in the inner pot 23 is drained to the outside for a set time as described above, in a state in which the supply valve 61 and the drain valve 51 are closed according to the set data of the control means 3 The water supply valve 41 and the water supply pump 42 selectively drive the rice to be washed again while high-pressure water is sprayed into the cooking space of the inner pot 23; The water level sensor 33 senses the level of the water, stops the operation of the feed water pump 42 and closes the feed water pipe 4 by the feed water valve 41, and the supply valve 61 and the A process in which the drain pump 52 and the drain valve 51 are driven for a set time, so that water is discharged to the outside for a set time is sequentially implemented.

At this time, the number of times of washing rice can be calculated and adjusted based on the set data of the control means 3 according to the user's operation of the operation switch 31 according to the type and amount of rice to be cooked. It is preferable to apply according to the choice of.

In this way, after the supply valve 61, the drain pump 52, and the drain valve 51 are driven for a set time, water is drained to the outside for a set time, and then the water remaining in the inner pot 23 is The water level consists of the location of the drainage inlet 53 of the drain pipe 5 according to the expansion and contraction of the expansion and contraction part 54 initially adjusted by the user; The amount of water applied when cooking rice is tailored.

When washing of the rice in the inner pot 23 is completed as described above, according to the data set in the control means 3, the water supply valve 41, the water supply pump 42, and the air supply valve 61 The drain valve 51 and the drain pump 52 are stopped, respectively, and the water supply pipe 4, the drain pipe 5, and the supply pipe 6 are closed respectively, and the cooking space of the inner pot 23 While this is closed, the rice is cooked while power is supplied to the electric heater 21 according to the set data of the control means 3.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

1: rice cooker 2: rice cooker body
21: electric heater 22: outer pot
23: inner pot 24: lid
25: pressure regulating device 3: control means
31: operation switch 32; Power supply
33: water level sensor 4: water supply pipe
41: water supply valve 42: water supply pump
5: drain pipe 51: drain valve
52: drain pump 53: drain inlet
54: new construction part 6: supply pipe
61: supply valve

Claims (1)

An outer pot 22 configured to apply heat to the cooking space through an electric heater 21 that receives power through a control means 3 configured to control the power of the power supply unit 32 and generates heat, and the outer pot 22 A rice cooker body 2 having an inner pot 23 disposed while being accommodated in and having a cooking space for rice in which rice and water are accommodated therein; A water supply pipe (4) provided in the rice cooker body (2) and spatially connected to a water supply source to supply water to the inner pot (23); A water supply valve (41) provided in the water supply pipe (4) and configured to open and close the water supply pipe (4) through electrical control of the control means (3); A drain pipe 5 provided in the rice cooker body 2 and configured to spatially connect the inside of the inner pot 23 and the outside of the rice cooker body 2 to drain the water filled in the inner pot 23 to the outside, ; A drain valve (51) provided in the drain pipe (5) and configured to open and close the drain pipe (5) through electrical control of the control means (3); A drain pump 52 provided in the drain pipe 5 and driven through electrical control of the control means 3 to forcibly drain the water filled in the inner pot 23 to the outside; A supply pipe (6) provided in the rice cooker body (2) and configured to supply air to the inner pot (23); In the automatic cooking rice cooker (1) comprising; a supply valve (61) provided in the supply pipe (6) and configured to open and close the supply pipe (6) through electrical control of the control means (3);
In the drain pipe 5,
A'expansion part 54' is provided so that the position of the drain inlet 53 of the drain pipe 5 can be adjusted vertically;
In the rice cooker body (2),
And a water level sensor (33) configured to sense the level of water to be filled in the inner pot (23) and apply the water level data sensed by the control means (3).

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