KR20220099236A - Rice cooker - Google Patents

Abstract

The present invention relates to an automatic rice cooker that maximizes the convenience of use by performing, through automatic electric control, each step of washing water, applying washing water customized for an amount of rice to be cooked, and applying heat to cook the rice. The automatic rice cooker comprises: a rice cooker body having an outer pot configured to apply heat from an electric heater supplied with power through the control of a control means configured to control the power of a power supply part to a cooking space, and a cover configured to open and close the outer pot with respect to the outside; and an inner pot accommodated in the outer pot of the rice cooker body and having a cooking space for rice in which rice and water are accommodated. The automatic rice cooker further comprises: an inlet/outlet pipe provided in the rice cooker body and provided with an inlet/output opening which is close to a bottom surface of the inner pot while having a gap therebetween; a water supply means supplying water to the inlet/output pipe through the control of the control means; a drainage means draining the water filled in the inner pot to the outside via the inlet/outlet pipes through the control of the control means; and a water level sensing means provided in the rice cooker body and configured to sense the water level of the water filled in the inner pot while having a gap with the bottom surface of the inner pot and to allow water level data to the control means.

Description

Automatic Cooking Rice Cooker {Rice cooker}

The present invention relates to a rice cooker configured to prepare rice by heating and cooking in a state in which water and rice are accommodated.

Specifically, each step of washing rice and cooking rice by inputting and heating an amount of water tailored to the amount of rice being cooked is performed through electric automatic control, thereby maximizing the convenience of use. It is about a cooking rice cooker.

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 disposed in an enclosed space by an electric heater, and cooks rice that is not easily boiled at normal pressure in a short time. is a commodity

This electric pressure cooker, typically, the inner pot is accommodated in the outer pot of the main body, by covering the main body and the inner pot with a cover, thereby sealing the inside of the inner pot; In a state in which rice and water to be cooked are put into the inner pot, power is applied to a heater built into the main body to cook rice while being heated.

That is, the outer pot of the main body is electrically heated to form 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 regulating device (or steam discharging device) is installed on the cover of the main body to adjust the pressure inside the inner pot to adjust the pressure of the inner pot.

That is, when the inside of the inner pot forms an excessively high pressure, the excessive pressure is discharged to the outside to control the pressure of the inner pot.

Such an electric pressure cooker cooks 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.

Meanwhile, in the prior art, when cooking rice, the user directly washes the rice in washing water, puts it in the inner pot of the electric pressure cooker, and then puts water in an appropriate proportion according to the amount of rice being cooked, and then turns on the power to the electric heater. It is designed to cook rice through the control that is supplied to it.

In the above, the input of power to the electric heater is to be supplied according to the data set by the control means for controlling the power of the power supply unit. According to the cooking characteristics according to the type of each, the heating conditions of the electric heater may be configured to include data to be selectively formed, respectively.

However, in the conventional rice cookers as described above, as the user manually washes the rice with washing water, there is a problem in the simplicity of cooking.

Accordingly, rice cookers have been proposed so that the user can automatically wash the rice through electric control without washing the rice with washing water, thereby promoting the convenience of work.

As one of them, there is a rice cooker known from Korean Patent Application No. 10-2000-0079397 (name: Fully automatic rice cooker/2000.12.20.), and as known in the Gazette, a rice cooker capable of washing, cooking and keeping warm rice In the present invention, a rice container for storing rice, an electronic solenoid valve for automatically putting rice into the washing unit, a solenoid valve for controlling the amount of water supplied through the water supply pipe, a washing box installed in the middle to wash rice, a rotating plate of the washing unit and A washing driving motor connected by a belt to turn 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 unit, and a rice cooker unit that enables cooking A fully automatic rice cooker is described that includes a cover and a driving motor for discharging the rice cooker after cooking, and a microprocessor system that controls all of these.

On the other hand, in Korea Patent Application No. 10-2009-0062405 (name: automatic rice cooker / 2009.07.09.), as known in the publication, a cross-shaped rotor is installed inside and outside the electric rice cooker and When a motor is installed just below the outside of the rice cooker and the motor rotates to generate power, the rotating shaft of this motor and the shaft of the rice washing rotor are connected by a wire outside the rice cooker, and the motor power is transmitted to the rice washing rotor. An automatic rice-making machine is described in which the rotor moves up, down, 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 are uneconomical due to their complicated structure, and in particular, when washing rice, the rice is damaged by a rotor that collides with the rice to stir, and there is a problem of unsanitary conditions.

The present invention has been proposed to solve the problems of the prior art as described above, and an object of the present invention is to provide economically because it is structurally simple, and the amount of water tailored to the amount of rice to be washed and cooked. It is to provide an automatic cooking rice cooker that maximizes the convenience of use by performing each step of cooking rice by inputting and applying heat through automatic electric control.

The automatic cooking rice cooker according to the present invention for achieving the object of the present invention as described above, receives power through the control of a control means configured to control the power of the power supply unit to apply the heat of the electric heater that generates heat to the cooking space. a rice cooker body having an outer pot and a cover configured to open and close the outer pot with respect to the outside; 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; an inlet and outlet water pipe provided in the rice cooker body and provided with an entrance and exit opening to be close to the bottom surface of the inner pot while having a gap; a water supply means configured to supply water to the inlet and outlet water pipes through the control of the control means; a draining means configured to drain the water filled in the inner pot to the outside through the inlet/outlet pipe through the control of the control means; It is characterized in that it further comprises; a water level sensing means provided in the rice cooker body and configured to detect the level of water filled in the inner pot and apply water level data to the control means while having a gap with the bottom surface of the inner pot. do.

The automatic cooking rice cooker according to the present invention made as described above is structurally simple and productivity is achieved by connecting the water supply means for supplying water to the inner pot and the drain means for draining to the outside through a single inlet and outlet water pipe. It has a high effect that can be provided economically.

In addition, there is no need to arrange separate appliances (rotors, etc.) in the cooking space of the inner pot in which rice is cooked, so there is no damage to the rice and it is possible to cook hygienically.

In addition, according to the data set in the control means, the supply and drainage of water to the inner pot is automatically controlled through electrical control, so that the steps of washing rice, supplying water, and heating and cooking are sequentially and automatically implemented, so that the rice is cooked. It has the effect of maximizing the simplicity of the work.

1 to 3 are schematic views showing an automatic cooking rice cooker according to an embodiment of the present invention.
Figure 4 is a schematic illustration of some excerpts showing an automatic cooking rice cooker according to this embodiment.
5 to 8 are schematic exemplary views showing the state of use of the automatic cooking rice cooker according to the present embodiment.
9 is a schematic plan view showing the arrangement of the inlet and outlet water pipes constituting the automatic cooking rice cooker according to the present embodiment.
Figure 10 is a schematic illustration showing a part of the inlet and outlet water pipe constituting the automatic cooking rice cooker according to the present embodiment.
11 and 12 are schematic exemplary views showing the water level detecting means constituting the automatic cooking rice cooker according to the present embodiment.
13 is a schematic exemplary view 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 according to the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of the elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member is shown with the same reference numerals in some cases. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

1 to 13 are views showing an automatic cooking rice cooker 1 according to an embodiment according to the present invention. The outer pot 22 is configured to apply the controlled heat of the electric heater 21 that receives power through the control of the control means 3 configured to control the power of the power supply unit (power terminal) 32 to the cooking space. ) and a rice cooker body 2 having a cover 24 configured to open and close the outer pot 22 with respect to the outside; and an inner pot 23 having a cooking space for rice that is detachably disposed inside the outer pot 22 of the rice cooker body 2 and accommodates rice and water therein.

That is, when the user selectively operates the operation switch 31 in a state in which rice and water in an amount suitable for the ratio of the input amount of rice are accommodated in the inner pot 23, the control means 3 ) by controlling the power of the power supply unit 32 according to the set data and applying it to the electric heater 21 to generate heat, and the heat generated in 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, the rice and water accommodated in the inner pot 23 are heated to cook the rice.

In the outer pot 22, the upper opening is opened so that the upper opening is closed and opened by the cover 24 rotatably provided in the rice cooker body (2); The inner pot 23 has an upper opening, and the opening of the upper portion is closed and opened by the cover 24 .

That is, each opening may be sealed and opened through the cover 24 in a state in which the inner pot 23 is accommodated in the outer pot 22 .

In the rice cooker body (2), a pressure adjusting device (not shown) is installed to adjust the internal pressure of the inner pot (23), it can be to adjust the pressure of the inner pot (23); The pressure regulating device, which may have a structure that has been previously known in the art, is preferably applied according to a user's selection.

The automatic cooking rice cooker (1) according to this embodiment is provided in the rice cooker body (2) and has an inlet/outlet pipe (4) provided with an inlet/outlet opening (41) that is provided in the inner pot (23) while being spaced from the bottom surface of the inner pot (23). )class; It has a; water supply means (5) configured to supply water to the inlet and outlet water pipe (4) through the control of the control means (3).

That is, according to the data set in the control means (3), the water supply means (5) is driven to supply water supplied from the outside to the inlet/outlet pipe (4) to selectively supply water to the inner pot (23). do.

In the above, the water supply means 5 includes: an inlet pipe 51 connected to a water supply source (not shown) to which water is supplied from the outside; a supply pump 52 selectively driven through the control of the control means 3 and configured to forcibly pump the water obtained through the water inlet pipe 51 to form a conveying pressure; It may include a;

That is, according to the data (program) set in the control means 3 , the supply pump 52 is driven to selectively supply water to the inlet and outlet pipe 4 through the supply pipe 53 . .

At this time, the water supplied to the inlet and outlet water pipe 4 forms a forced transfer pressure by the supply pump 52 to form a strong transfer pressure inside the inner pot 23 .

Accordingly, the rice accommodated in the inner pot 23 is washed by the strong transfer pressure of water.

In the above, the inlet and outlet openings of the inlet and outlet water pipe (4) are arranged at an eccentric position to one side from the center of the inner pot (23) on a plane, and the water supplied to the inner pot (23) is centered on the center of the inner pot (23) It can be supplied while forming a vortex with

Therefore, as the rice filled in the inner pot 23 is stably washed by the water supplied in a swirl shape, washing efficiency can be maximized.

In the above, the inlet and outlet water pipe (4) is provided with a valve means that is driven according to the control of the control means (3) to selectively adjust the opening and closing with the supply pipe (53), and the data set in the control means (3) Accordingly, it may be configured to control the supply of water to the inner pot 23 .

At this time, after putting the rice to be cooked into the inner pot 23 , water is fed into the inner pot 23 through the water supply means 5 in a state in which the inner pot 23 is closed through the cover 24 . is added, the rice is washed by the input water.

In the automatic cooking rice cooker 1 according to this embodiment made as described above, the inlet and outlet water pipe 4 passes through the cover 24 and the entrance and exit openings are in the closed state of the inner pot 23 at the bottom of the inner pot 23 . It may be arranged at a position close to the surface while having a gap, and may be arranged to be located inside the rice to be filled with respect to the minimum amount of rice filled in the inner pot 23 .

That is, as the inlet and outlet openings of the inlet and outlet water pipe 4 are located inside the rice in the inner pot 23 so that the supply of water is made inside the rice, the washing operation of the rice can be performed stably.

On the other hand, at the entrance and exit of the entrance and exit of the water pipe (4), a plurality of through-holes having an inner diameter through which water passes but not rice is provided with an entry/exit cap 41, so that the rice filled in the inner pot is transferred to the entry/exit pipe ( 4) to prevent backflow.

In the above, the entry/exit cap 41 may be formed such that the porous 'stainless mesh' is wound in multiple layers so that water passes but rice does not pass while the wing holes overlap each other, and it is appropriately applied according to the user's choice desirable.

In the above, the plurality of through holes formed in the entry/exit cap 41 form angled passages 42 that intersect with respect to the center to form a vortex shape when the water is supplied through the entry/exit cap 41. As can be supplied while being, the inclined passages 42, it is preferable to be suitably applied according to the user's selection.

The automatic cooking rice cooker (1) according to this embodiment made as described above, through the control of the control means (3), the water filled in the inner pot (23) is drained to the outside via the inlet and outlet water pipe (4) It further has a drainage means (6);

That is, according to the data set in the control means (3), the drain means (6) is driven to forcibly suck in the washing water for washing rice in the inner pot (23) through the inlet and out water pipe (4) and drain it to the outside. .

In the above, the drain means (6) includes: an inlet pipe (61) connected to the inlet and outlet water pipe (4) so that the washing water is introduced; It is selectively driven through the control of the control means (3) and forms a forced suction force for the inlet pipe (61) to form a forced suction force for the inlet and outlet openings of the inlet and outlet water pipe (4) to forcibly suck the washing water a drain pump 62; It may include a;

That is, according to the data (program) set in the control means 3, the drain pump 62 is driven to form a strong suction force in the inlet and outlet water pipe 4 connected to the inlet pipe 61, so that the inner pot 23 After the washing water accommodated in the ) is sucked, it is drained to the outside through the drain pipe (63).

At this time, the rice accommodated together with the washing water in the inner pot 23 is blocked by the entrance and exit cap 41 so as not to be discharged to the outside, thereby ensuring stability.

In the above, the inlet and outlet water pipe (4) is provided with a valve means that is driven according to the control of the control means (3) to selectively adjust the opening and closing with the inlet pipe (61), and the data set in the control means (3) Accordingly, it may be configured to control the discharge of washing water from the inner pot 23 .

The automatic cooking rice cooker 1 according to this embodiment made as described above spatially connects the inlet and outlet water pipe 4, the supply pipe 53 and the inflow pipe 61 to each other, and the control means 3 is controlled. a selector valve 33 that is selectively driven according to ) may be provided.

That is, the valve means configured to spatially open and close the inlet and outlet water pipe 4 and the supply pipe 53 and the valve means to spatially open and close the inlet and outlet water pipe 4 and the inlet pipe 61 are the switching It is made of the valve 33, which can be implemented to implement integrated control, and is preferably applied to each suitably according to the user's selection.

The automatic cooking rice cooker (1) according to this embodiment made as described above is provided in the rice cooker body (2) while having a gap with the bottom surface of the inner pot (23) and water filled in the inner pot (23). and a water level detecting means (7) configured to sense the water level and apply water level data to the control means (3).

That is, the level of the water filled in the inner pot 23 is sensed through the water level detecting means 7 , and the amount of water supplied through the water supply means 5 can be selectively adjusted.

Accordingly, the excessive supply of water to the inner pot 23 is electrically restricted to ensure the safety of cooking quality.

At this time, the water level sensing position of the water level detecting means 7 is composed of a water level to be supplied selected according to the amount of rice contained in the inner pot 23, so that an appropriate amount of water is supplied to the inner pot 23. have

In the above, the water level sensing position of the water level detecting means 7 is formed to be selectively adjustable by the user, so that an appropriate amount of water is supplied according to the amount of rice (cooking capacity) accommodated in the inner pot 23. have.

In the above, the water level detecting means 7 is accommodated while passing through the inlet and outlet water pipe 4, the upper end is arranged and fixed so that its position is fixed in the cover 24, and the lower end is stretched and contracted so that the distance to the upper end is adjusted an expansion tube 71; It may include; a water level sensor 72 fixed to one position (lower end) of the expansion tube.

That is, the user can arbitrarily adjust the degree of expansion and contraction of the expansion tube 71 to adjust the water level suitable for the type and amount of rice cooked in the inner pot 23 .

In addition, the level of the water filled in the inner pot 23 is sensed through the water level sensor 72 whose position in the inner pot 23 is adjusted according to the expansion and contraction control of the expansion and contraction tube 71 by the user. , the supply amount of water supplied through the inlet and outlet water pipe 4 is selectively controlled.

Accordingly, the excessive supply of water to the inner pot 23 is electrically limited to ensure the safety of the operation.

When described in detail the effect of the automatic cooking rice cooker (1) according to this embodiment made in this way as follows.

When you want to cook rice through the automatic cooking rice cooker 1 according to this embodiment, first, an appropriate amount of rice to be cooked is put into the inner pot 23, and then the inner pot 23 is placed in the outer pot 22 ), the water level sensor 72 by adjusting the degree of expansion and contraction of the expansion tube 71 to fit the amount of remaining water according to the type and input amount of rice accommodated in the inner pot 23. Adjust the proper position of the

When the adjustment of the expansion and contraction tube 71 is completed in the state in which the inner pot 23 in which the rice is accommodated is accommodated in the outer pot 22, the inner pot 23 and the outer pot through the cover 24 ( 22) is closed and sealed.

At this time, the input/exit cap 41 provided at the entry/exit opening of the entry/exit water pipe 4 is located inside the rice in the inner pot 23 .

As such, when the inner pot 23 and the outer pot 22 are closed through the cover 24, when the operation switch 31 is selectively operated by the user, the control means according to the amount of input rice ( According to the calculation conditions of the data set in 3), water is supplied through the water supply means (5).

At this time, according to the data set in the control means (3), the switching valve (33) is controlled and adjusted so that the inlet/outlet pipe (4) and the inlet pipe line (61) are closed, and the input/exit water pipe (4) and the supply pipe The furnace 53 is opened, and according to the pump of the supply pump 52 , water having a strong conveying pressure is sprayed into the cooking space of the inner pot 23 at high pressure to wash the rice.

As described above, while rice is being washed with water sprayed under high pressure, the water level of the inner pot 23 gradually rises according to the continuous supply of water, and when the water level sensor 72 detects the water level, the According to the data set by the control means (3), the driving of the supply pump (52) is stopped and the switching valve (33) is controlled to stop the supply of water to the inlet/outlet pipe (4).

In addition, according to the data set in the control means (3), the switching valve (33) is controlled to close the inlet/outlet pipe (4) and the supply pipe line (53), and the inlet/outlet pipe (4) and the inlet pipe line 61 is opened, and according to the pump of the drain pump 62, a strong suction force is formed at the inlet/outlet opening of the inlet/outlet pipe 4, and the washing water is drained to the outside.

At this time, the drain pump 62 is driven for a set time according to the data set in the control means 3, and the drain operation is performed for the set time.

On the other hand, according to the data set in the control means (3), through the selective control of the supply pump (52), the drain pump (62), and the switching valve (33), the input of water into the inner pot (23) and to be able to wash the rice through repeated execution of a set number of times while sequentially draining the washing water; It is preferable to be appropriately applied according to the user's selection.

That is, the number of times of washing rice can be calculated and adjusted based on the data set by the control means 3 according to the user's operation of the operation switch 31 according to the type and amount of rice being cooked, It is preferably applied according to the user's selection.

When the washing operation of rice according to the data set in the control means (3) is completed by performing this process, through the selective control of the switching valve (33), the inlet and outlet water pipe (4) and the inlet pipe (61) is closed, and the inlet and outlet water pipe 4 and the supply pipe 53 are opened, and according to the pump of the supply pump 52 , water is supplied to the cooking space of the inner pot 23 .

At this time, when water is supplied up to the water level detected by the water level sensor 72, the switching valve 33 is controlled according to the data set by the control means 3 to close the inlet and outlet water pipe 4 to the outside. It is spatially closed with respect to the inner pot (23).

As described above, while the cooking space of the inner pot 23 is closed, power is supplied to the electric heater 21 according to the data set by the control means 3 , and heat is generated to cook the inner pot 23 . The rice is cooked while heating the space.

Then, when the cooking of the rice is completed for a time according to the data set by the control means 3 , when the supply of power to the electric heater 21 is stopped, the cooking of the rice is completed.

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 equivalent other embodiments are possible therefrom. . Therefore, it will be well understood that the present invention is not limited to the forms recited in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

1: rice cooker 2: rice cooker body
21: electric heater 22: outer pot
23: inner pot 24: cover
3: control means 31: operation switch
32 ; Power supply 33: switching valve
4: entrance and exit pipe 41: entrance and exit cap
42: inclined passage 5: water supply means
51: intake pipe 52: supply pump
53: supply line 6: drainage means
61: inlet pipe 62: drain pump
63: drain line 7: water level sensing means
71: expansion tube 72: water level sensor

Claims (1)

A rice cooker main body having an outer pot that receives power through the control of a control means configured to control the power of the power supply unit and applies the heat of the electric heater that generates heat to the cooking space, and a cover that opens and closes the outer pot with respect to the outside; 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;
an inlet and outlet water pipe provided in the rice cooker body and provided with an entrance and exit opening that is provided with an entrance and exit opening close to the bottom surface of the inner pot while having a gap;
water supply means configured to supply water to the inlet and outlet water pipes through the control of the control means;
a draining means configured to drain the water filled in the inner pot to the outside through the inlet/outlet pipe through the control of the control means;
It is characterized in that it further comprises; a water level sensing means provided in the rice cooker body and configured to detect the level of water filled in the inner pot and apply water level data to the control means while having a gap with the bottom surface of the inner pot. automatic cooking rice cooker.

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