JP3207386B2 - Electric rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric rice cooker capable of providing a large amount of rice.

[0002]

2. Description of the Related Art Conventionally, when a large amount of rice is required for business use, for example, one or a plurality of large electric rice cookers, generally cooking 5 to 2 square meters, are cooked. They are used to keep the heat as it is, or the rice cooked by each electric rice cooker is transferred to a large-capacity jar with a large capacity of, for example, four shoves or five shoes to keep the heat.

[0003]

However, when one electric rice cooker is used, it must be cooked many times, and a plurality of large electric rice cookers and heat jars are used individually. However, there are many problems in that it is not easy to use, it is difficult to place it, the power supply wiring is complicated, the operation of cooking and keeping heat is troublesome, and the appearance is poor. Also, the total product cost increases.

[0004] The present invention has been made to solve the above-described problems, and a plurality of electric rice cooker units are assembled vertically in a single rice cooker cabinet, and the uppermost electric cooker unit among them is installed. While the lid of the rice cooker unit can be opened above the rice cooker cabinet, at the initial stage of rice cooking when each of the plurality of electric rice cooker units is not used, the electric rice cooker on the uppermost side is used. By giving priority to units,
It is an object of the present invention to provide an electric rice cooker that can be used from the top one that is convenient to use when starting rice cooking.

[0005]

Means for Solving the Problems In order to achieve the above objects, the present invention has the following means for solving the problems.

(1) The invention of claim 1 That is, the invention of claim 1 of the present application incorporates a plurality of electric rice cooker units each having a rice cooking and heat retaining function in a vertical direction in a single rice cooker cabinet. The lid of the uppermost electric rice cooker unit of the plurality of electric rice cooker units can be opened above the rice cooker cabinet, while the other lower electric rice cooker units are pulled out from the rice cooker cabinet. An electric rice cooker, wherein each of the electric rice cooker units can be operated to cook or keep warm in the rice cooker cabinet, wherein each of the plurality of electric rice cooker units is used together. In the early stage of rice cooking that has not been started, the use of the above-mentioned electric rice cooker unit at the top Control unit to indicate that stage electric cooker unit is selected is characterized in that is provided.

Therefore, in this configuration, each of a plurality of electric rice cooker units vertically assembled in a single rice cooker cabinet is individually cooked or heated in the single rice cooker cabinet. Activate or
Alternatively, the rice can be cooked or kept warm in a predetermined order. Therefore, it is easy to install, requires no space, requires only one set of power supply wiring, is low in cost, and has a good appearance.

In addition, in this configuration, in that case,
While the lid of the uppermost electric rice cooker unit of the plurality of electric rice cooker units can be opened above the single rice cooker cabinet, the other lower electric rice cooker units are Since it can be pulled out from the above rice cooker cabinet, it can be used arbitrarily depending on the usage state with the top electric cooker unit and other lower electric cooker units, and in terms of rice cooking operation It becomes easy to use.

Further, by the control unit,
In the early stage of rice cooking when each of the plurality of electric rice cooker units thus configured is not used together,
A lid can be opened above the rice cooker cabinet so that the user can preferentially designate the use of the uppermost electric rice cooker unit which is easy to use, and display that the electric rice cooker unit is selected. It has become.

[0010] Therefore, at the start of rice cooking, if none of the plurality of electric rice cookers are used, the user can cook rice using the uppermost electric rice cooker unit which is easy to use. Can be easily informed.

(2) The invention of claim 2 In the invention of claim 2 of the present application, in the case where the electric rice cooker is configured as in the invention of claim 1, each of the plurality of electric rice cookers selectively cooks rice or rice. Insulation can be performed.

Therefore, in this configuration, only one of the electric rice cooker units can be operated in the rice cooker cabinet, either alone or in a predetermined order. Become.

(3) The invention of claim 3 Further, in the invention of claim 3 of the present application, the above-mentioned claim 1 or 2
In the case of adopting a configuration like the invention of the invention, that the user-friendly uppermost electric rice cooker unit is selected by the blinking display of the information display unit corresponding to the uppermost electric rice cooker unit. Since it is displayed, it is immediately understood that the rice should be cooked using the uppermost electric rice cooker unit.

[0014]

As described above, according to the electric rice cooker of each invention of the present application, a plurality of electric rice cooker units installed in a vertical direction in a single rice cooker cabinet are respectively connected to the single rice cooker. In the cabinet, in the early stage of rice cooking, only the top tier is cooked alone or kept warm,
In other cases, any of the above-mentioned ones can be operated alone or in sequence for cooking or keeping warm, and it is convenient and does not matter where to place.
The power supply wiring is simple, and a good-looking electric rice cooker can be provided.

[0015]

(Embodiment 1) FIGS. 1 to 10 show the configuration of an electric rice cooker according to Embodiment 1 of the present invention.

In the figure, reference numeral 1 designates a box-shaped rice cooker cabinet which is generally long in a vertical direction and accommodates two sets of electric rice cooker units 2A and 2B, that is, a first upper stage and a second lower stage.

The rice cooker cabinet 1 is, for example, shown in FIG.
A first frame portion 3A for fixedly incorporating the first electric rice cooker unit 2A is provided on the upper side, and a second frame portion is provided on the lower side. Side plate 5 common to second frame 3B for housing electric rice cooker unit 2B so that electric rice cooker unit 2B can be pulled out forward.
a, 5b are provided integrally vertically. Further, a pair of left and right guide rails 4a, 4a extending in the front-rear direction are provided on both left and right sides of the bottom of the second frame 3B.
b is provided.

The first and second frame portions 3A,
A back plate portion 6a and a bottom plate portion 6b having an integral structure which are perpendicular to each other are integrally attached to the back surface portion of 3B and the bottom surface portion of first frame portion 3A, for example, by screwing.

An upper plate portion 7a and a front plate portion 7b, which are integrally formed at right angles to each other, are integrally attached to the upper surface and the front surface of the first frame 3A, for example, by screwing.
A large-diameter opening 12 for fitting the inner case and a small-diameter opening 13 for fitting the steam pipe are formed in the center of the upper plate 7a. In addition, the front panel 7b has an operation panel mounting opening 1
4 are formed.

At the bottom corners of the rice cooker cabinet 1 formed as described above, legs 8, 8,.
The inner case 9 is further housed and fixed in a space inside the first frame 3A via an opening 12 for fitting an inner case at the center of the upper plate 7a. A heater plate (not shown) in which, for example, a rice cooker is embedded is provided at the bottom of the inner case 9, and the rice cooker 10 is housed from above on the heater plate as shown in the figure.

An engaging portion 16 for engaging a lock lever 19 on the lid 15 described later is provided at the front surface of the upper edge 9a of the inner case 9.

The lid portion 15 of the first electric rice cooker unit 2A has an outer cover 15a having a substantially square shape as shown in the figure and having a predetermined edge width, and an inner peripheral edge portion of the outer cover 15a. The fitted inner cover 15b and the inner cover 15b
It is mounted in a circular opening formed in the center part of the device through an engaging member 17 so as to be detachable, and is formed in a hollow structure comprising a heat radiating plate 15c provided with a lid heater inside. The upper surface of the outer cover 15a is subjected to necessary processing so that it can be used as a cooking table.

A steam outlet 31 from the rice cooker 10 is provided at a predetermined portion of the radiator plate 15c, and the steam outlet 31 is connected to the inner cover 15b through a first steam pipe 32.
Opening 33 of the second steam pipe 33 of the rice cooker cabinet-side upper plate 7a provided at one corner of the pivotal support side
a is connected to the fitting cap 34. The second steam pipe 33 is connected to a third side of a water tank 50 described later.
Is connected to the steam pipe 51.

As shown in FIG. 4, the lid 15 has hinge mechanisms 18a, 18a comprising flat hinges which can be axially separated to the left and right of the upper rear end of the rice cooker cabinet 1.
A lock lever 19 that opens and closes the lid portion 15 by engaging with the engagement portion 16 on the inner case 9 side is provided on the open end side thereof. Have been.

On the other hand, a movable auxiliary cabinet 21 which can be pulled out or pushed in the front-rear direction by using a pair of left and right guide rails 4a and 4b is provided in a space in the lower second frame portion 3B. And the second electric rice cooker unit 2 is provided in the movable auxiliary cabinet 21.
B is stored.

As shown in FIGS. 3 and 7, for example, the movable auxiliary cabinet 21 has a front door 23 having a handle 22 for pulling out on an upper front side and a rear side of the front door 23, and A box portion 24 that can be accommodated in the space inside the first frame portion 3A, and a pair of left and right guide rails 4a, 4b on the bottom side of the first frame portion 3A on the left and right sides on the bottom rear end of the box portion 24; A second guide roller (caster roller) having first guide rollers 25a and 25b which pivots in the front-rear direction and which can run on an external floor surface on both left and right sides at the bottom front end of the box portion 24. 26
a, 26b. The pair of left and right guide rails 4b, 4b on the side of the second frame portion 3B has a first roller engaging concave portion (recess portion) 20a on a tapered surface as shown in FIG. On the front end side, second roller engaging concave portions (recessed portions) 20b on the same tapered surface shown in FIG. 6 are provided, respectively, so that the movable auxiliary cabinet 21 can be stably pushed or pulled out. .

Then, the upper plate portion 24 of the box portion 24 is formed.
An opening 29 for fitting an inner case is further formed at the center of the inner case 9, and an inner case 9 similar to the first electric rice cooker unit 2 </ b> A is formed in a lower space portion thereof at the center of the upper plate portion 24 a. A heater plate (not shown) in which, for example, a rice cooker is buried is provided at the bottom of the inner case 9 and is housed and fixed through an opening 29 for fitting the case. Are stored in a state from above.

On the other hand, reference numeral 27 denotes a cover of the second electric rice cooker unit 2B. The cover 27 has a circular shape as shown in the figure and an outer cover 27a having a predetermined edge width.
And a heat radiating plate 27b which is detachably attached to an opening inside the outer peripheral edge of the outer cover 27a via an engaging member 35 and has a lid heater inside. .

A steam outlet 36a is provided at a predetermined portion of the radiator plate 27c. The steam outlet 36a is connected to the movable auxiliary cabinet 21 through a fourth steam pipe 36 passing through the handle 38. An opening 37a with the fifth steam pipe 37 communicating with the water tank 50 on the side is connected via a fitting cap 36b.

The lid 27 is provided with a handle 38 with respect to the rear end of the box 24 of the movable auxiliary cabinet 21.
Is attached via a hinge mechanism 42 so as to be rotatable vertically.

The hinge mechanism 42 further includes a spring member for constantly urging the cover 27 upward.

On the other hand, as shown in FIG. 7, a lid holding roller 43 is provided at the upper end of the storage section of the movable auxiliary cabinet 21 on the rice cooker cabinet 1 side. When it is pushed in, the upper surface of the handle 38 of the lid 15 is rotated and pressed downward against the opening urging force of the spring member, and the lid 27 is closed in conjunction therewith, while the lid 27 is closed. When the movable auxiliary cabinet 21 is pulled out, the lid pressing roller 43 is relatively retracted, the pressing force is lost, and the lid 27 is opened in conjunction with the opening urging force of the spring member. .

The movable auxiliary cabinet 21 is provided with a water tank 50 located below one side of the movable auxiliary cabinet 21. In the water tank 50, for example, as shown in FIG.
First electric rice cooker unit 2A via first steam pipe 32, second steam pipe 33, and third steam pipe 51
And the rice cooker 10 of the second electric rice cooker unit 2B communicates via the fourth steam pipe 36 and the fifth steam pipe 37, respectively.
When the movable auxiliary cabinet 21 is stored in the closed state of each of the movable auxiliary cabinets 5 and 27, for example, as shown in FIG.

That is, the first steam pipe 32 in the lid 15 of the first electric rice cooker unit 2A is
When the lid 15 is closed and the lock lever 19 is engaged with the engaging portion 16, the fitting cap 34 portion becomes the upper end opening 33 a of the second steam pipe 33 on the rice cooker cabinet 1 side.
And are connected and connected to each other.

Further, the lower end opening 33b of the second steam pipe 33 on the rice cooker cabinet 1 side and the third opening 33b on the water tank 50 side.
When the movable auxiliary cabinet 21 is pushed into the rice cooker cabinet 1 and stored therein, the upper end side opening 51a of the steam pipe 51 is fitted and connected to each other.

Further, on the rice cooker cabinet 1 side, a steam outlet 60 is provided at a side portion thereof, and a seventh steam pipe 61 communicates with the steam outlet 60. On the other hand, on the water tank 50 side, a sixth steam pipe 53 corresponding to the seventh steam pipe 61 is provided. The openings 53 of these sixth steam pipes 53
a and the opening 61a of the seventh steam pipe 61 are also connected to each other when the movable auxiliary cabinet 21 is pushed and stored.

The fitting cap 36b on the side of the fourth steam pipe 36 of the lid 27 of the second electric rice cooker unit 2B.
The upper end side opening 37a of the fifth steam pipe 37 is connected and connected to each other when the lid 27 is closed.

Therefore, the first to seventh as shown in FIG.
Steam pipes 32, 33, 51, 36, 37, 53,
In the state of connection and communication between the electric rice cooker unit 61 and the steam outlet 60, in other words, in the rice cooking or heat keeping state of the first and second electric rice cooker units 2A and 2B, the respective electric rice cooker units 2A and 2B The steam from the rice cookers 10, 10 is first passed through the first, second, and third steam pipes 32, 33, 51, and the fourth and fifth steam pipes 36, 37, and the space 52 in the water tank 50 is first provided. And is condensed efficiently and most of it becomes water, and only the remaining steam is discharged to the outside from the steam outlet 60 through the sixth and seventh steam pipes 53 and 61. The pressure will be regulated.

Therefore, with this configuration, rice can be cooked or kept warm almost without releasing steam.

The first and second electric rice cooker units 2A and 2B housed in the rice cooker cabinet 1 in a fixed and movable structure in the upper and lower two-stage structure as described above,
A power supply and a control circuit are configured to be able to cook and heat both at the same time while being able to cook and heat the rice at the same time, respectively. Plate part 7b
The single operation panel 11 attached to the operation panel attachment opening 14 is also used.

As described above, in the electric rice cooker according to the present invention, first, the first and second plural electric rice cooker units 2A and 2B each having a rice cooking and heat retaining function are provided in a single rice cooker cabinet 1. So that the electric rice cooker units 2A and 2B can be used selectively or simultaneously in a single rice cooker cabinet 1.

Therefore, in this configuration, the first and second plurality of electric rice cooker units 2A and 2B incorporated in the single rice cooker cabinet 1 are operated to cook rice or keep warm independently, respectively, or The rice can be cooked or kept warm at the same time or in a stepwise manner so that a desired amount of rice can be cooked at a desired time and the temperature can be appropriately kept after the cooking.

Therefore, a desired amount of rice in a freshly cooked state can be provided at a necessary time when necessary.

Moreover, the first and second plural electric rice cooker units 2A and 2B are incorporated in a single rice cooker cabinet 1 as compactly as possible in the vertical direction. Since it can be operated for cooking or keeping warm, it can be easily installed and takes up little space, and only one set of power supply wiring to the AC outlet is required, and the appearance is improved.

Further, in the above configuration, the operation panel section 11 of the first and second plurality of electric rice cooker units 2A and 2B is configured to also serve as a single operation panel section as described above. As a result, the rice and heat setting operation is facilitated, and the cost of parts is reduced.

Furthermore, in the above configuration, since the upper surface of the lid 15 of the first electric rice cooker unit 2A above the rice cooker cabinet 1 is configured to be used as a cooking table, its installation space is increased. Can be used more effectively, and the functionality can be improved.

As a result, according to the electric rice cooker of the present invention, a large amount of rice can be provided in a freshly cooked state at a required time when necessary, and is simple, space-saving, low-cost, and easy to operate. It is possible to realize an electric rice cooker that is most suitable for business use and the like.

The first electric rice cooker unit 2A
The hinge mechanism for supporting the lid 15 of the rice cooker cabinet 1 so as to be openable and closable is not limited to a flat hinge structure as shown in FIG. Needless to say, a high-quality one may be used.

(Embodiment 2) FIGS. 11 to 14 show the configuration of an electric rice cooker according to Embodiment 2 of the present invention.

In the present embodiment, the first electric rice cooker unit 2A is the same as the electric rice cooker of the first embodiment.
The lock structure of the lid 15 is changed from the lock lever structure shown in FIG. 3 to the magnet catch structure shown in FIG. 12, and the guide rail and guide roller structure of the movable auxiliary cabinet 21 of the drawer type are shown in FIG. It has been changed to a simple slide rail structure.

In the figure, reference numeral 1 designates a box-like vertically long overall housing two sets of electric rice cooker units 2A, 2B of the upper first side and the second lower side similar to the first embodiment. Is a rice cooker cabinet.

The rice cooker cabinet 1 has a frame structure as shown in FIG. 2, for example, similarly to the above-described first embodiment, and a first electric rice cooker unit is provided on the upper side. A first frame portion 3A for fixedly incorporating 2A, and a second electric rice cooker unit 2B on the lower side
And the second frame portion 3B for accommodating so as to be able to be pulled out forward are integrally provided vertically by common side plates 5a and 5b. Further, a pair of left and right first slide rails 82 each having a U-shaped cross section and extending in the front-rear direction are provided near the upper portions on both right and left sides of the second frame body portion 3B.
a, 82b are provided.

The first and second frame portions 3A,
A back plate portion 6a and a bottom plate portion 6b having an integral structure which are perpendicular to each other are integrally attached to the back surface portion of 3B and the bottom surface portion of first frame portion 3A, for example, by screwing.

An upper plate portion 7a and a front plate portion 7b which are integrally formed at right angles to each other are integrally attached to the upper surface and the front surface of the first frame 3A, for example, by screwing.
A large-diameter opening 12 for fitting the inner case and a small-diameter opening 13 for fitting the steam pipe are formed in the center of the upper plate 7a. An operation panel mounting opening 14 is formed in the front plate 7b (see FIG. 2).

At the bottom corners of the rice cooker cabinet 1 formed as described above, legs 8, 8,.
The inner case 9 is further housed and fixed in a space inside the first frame 3A via an opening 12 for fitting an inner case at the center of the upper plate 7a. A heater plate (not shown) in which, for example, a rice cooker is embedded is provided at the bottom of the inner case 9, and the rice cooker 10 is housed from above on the heater plate as shown in the figure.

The lid portion 15 of the first electric rice cooker unit 2A has a substantially square shape as shown in the figure, an outer cover 15a having a predetermined edge width, and an inner peripheral edge portion of the outer cover 15a. The fitted inner cover 15b and the inner cover 15b
It is mounted in a circular opening formed in the center part of the device through an engaging member 17 so as to be detachable, and is formed in a hollow structure comprising a heat radiating plate 15c provided with a lid heater inside. The upper surface of the outer cover 15a is subjected to necessary processing so that it can be used as a cooking table.

A steam outlet 31 for discharging steam from the rice cooker 10 is provided at a predetermined portion of the heat radiating plate 15c, as in the first embodiment, and the steam outlet 31 is the first steam outlet.
Of the rice cooker cabinet-side upper plate portion 7a provided at one corner of the inner cover 15b on the pivot portion side through the steam pipe (not shown) through the steam pipe (not shown) into the opening 33 of the second steam pipe (not shown). It is connected to cap 34.

As shown in FIGS. 11 to 13, the lid 15 is rotatably and pivotally mounted on the left and right sides of the upper rear end of the rice cooker cabinet 1 via hinge mechanisms 18c, 18c. Magnetic bodies (for example, iron pieces) 70a, 70b which are attracted by fastening magnets 71a, 71b provided on the left and right of the upper part of the rice cooker cabinet 1 and lock the opening and closing of the lid 15 are provided on the lower left and right sides of the open end side. Is provided.

On the other hand, the first slide rails 82a and 82b having a U-shaped cross section are provided on the left and right side walls in the lower frame 2B, as described above.
In the space inside the frame 3B, the movable auxiliary cabinet 21 that can be pulled out or pushed and stored in the front-rear direction using the first slide rails 82a and 82b is interposed via the second slide rails 81a and 81b. It is provided,
A second electric rice cooker unit 2B is housed in the movable auxiliary cabinet 21.

As shown in FIGS. 12 and 14, for example, the movable auxiliary cabinet 21 has a front door 23 having a handle 22 for pulling out on the upper front side and a rear side of the front door 23, and A box portion 24 that can be accommodated in the space inside the first frame portion 3A, and the first slide rail 8 on the second frame portion 3B side is provided on both left and right sides of the box portion 24.
It has second slide rails 81a and 81b which slide on the lower pieces of 2a and 82b via first guide rollers 92a and 92b which rotate in the front-rear direction, and the left and right sides on the bottom front end side of the box portion 24. Guide roller (caster roller) 2 running on the external floor surface
6a and 26b. At the rear ends of the second slide rails 81a and 81b, there are provided third guide rollers 91a and 91b that rotate in contact with the lower surfaces of the slide rails 82a and 82b. Further, engagement frames 85, 85 each having a U-shaped cross section are provided in the upper left and right upper frame portions on the second frame portion 3B side, and the engagement grooves 85, 85 have lids described later. Part 72
Hook-shaped engaging pieces 77 provided on the left and right sides of the rear end side
Of the movable auxiliary cabinet 21 can be freely slid in the front-rear direction according to the pushed-in state or the pulled-out state of the movable auxiliary cabinet 21, and the pull-out position is regulated. To open the lid 72.

Then, the upper plate portion 24 of the box portion 24 is formed.
An opening 29 for fitting an inner case is further formed at the center of the inner case 9, and an inner case 9 similar to the first electric rice cooker unit 2 </ b> A is formed in a lower space portion thereof at the center of the upper plate portion 24 a. A heater plate (not shown) in which, for example, a rice cooker is buried is provided at the bottom of the inner case 9 and is housed and fixed through an opening 29 for fitting the case. Are stored from above.

On the other hand, reference numeral 72 denotes a cover of the second electric rice cooker unit 2B. The cover 72 has a substantially semicircular shape as shown in the figure, and has an outer cover 72 having a predetermined edge width.
a and a heat radiating plate 72c which is detachably attached to an opening inside the outer peripheral edge of the outer cover 72a via an engaging member 73 and has a lid heater inside. .

A steam outlet 74 is provided at a predetermined portion of the heat radiating plate 72c. The steam outlet 74 is connected to the movable mold through a fourth steam pipe (not shown) similar to that of the first embodiment. It is connected to an opening 80a with a fifth steam pipe (not shown) on the auxiliary cabinet 21 side.

The lid 72 is attached to the rear end of the movable auxiliary cabinet 21 via hinge mechanisms 76, 76 so as to be vertically rotatable.

On the other hand, as shown in FIG. 14, a lid holding roller 96 is provided at the storage opening of the movable auxiliary cabinet 21 on the rice cooker cabinet 1 side. When it is pushed in, it is pressed downward while rotating on the upper surface of the lid portion 72, thereby automatically closing the lid portion 72. On the contrary, when the movable auxiliary cabinet 21 is pulled out, it is relatively The lid pressing roller 96 is retracted, the pressing force is lost, and the engaging grooves 85 of the engaging members 77, 77,
85 by the engagement with the front end, the pulling force
Is open to the public.

The first and second electric rice cooker units 2A and 2B housed in the rice cooker cabinet 1 in the fixed and movable structure in the upper and lower two-stage structure as described above operate the rice cooker and the heat insulator independently. On the other hand, the power supply and the control circuit are configured so that both the rice cooking and the heat keeping operation can be performed at the same time, and the operation setting of the rice cooking and the heat keeping function is performed by operating the front plate portion 7b of the rice cooker cabinet 1. The single operation panel 11 attached to the panel attachment port 14 is also used.

As described above, in the electric rice cooker according to the present invention, first, the first and second plural electric rice cooker units 2A and 2B each having a rice cooking and heat retaining function are provided in a single rice cooker cabinet 1. So that the electric rice cooker units 2A and 2B can be selectively or simultaneously cooked or kept warm in a single rice cooker cabinet 1.

Therefore, in this configuration, the first and second plurality of electric rice cooker units 2A and 2B incorporated in the single rice cooker cabinet 1 are operated to cook rice or to keep warm independently, or A desired amount of rice can be cooked at a desired time by simultaneously or sequentially stepping the rice or keeping warm, and the temperature can be appropriately kept after the cooking.

[0069] Therefore, it is possible to provide freshly cooked rice at a required time when necessary.

Furthermore, since the first and second plural electric rice cooker units 2A and 2B are compactly incorporated in a single rice cooker cabinet 1 in two upper and lower stages, installation is easy and location is easy. In addition, one set of power supply wiring to the AC outlet is sufficient, and the appearance is improved.

Further, in the above configuration, the operation panel section 11 of the first and second plurality of electric rice cooker units 2A and 2B is also configured by the single operation panel section as described above. As a result, the rice and heat setting operation is facilitated, and the cost of parts is reduced.

Further, in the above configuration, since the upper surface of the lid portion 15 of the first electric rice cooker unit 2A above the rice cooker cabinet 1 can be used as a cooking table, its installation space is increased. Can be used more effectively, and the functionality can be improved.

As a result, according to the electric rice cooker of the present invention, a large amount of rice can be provided in a freshly cooked state when needed at a required time, and is simple, space-saving, low-cost, and easy to operate. It is possible to realize an electric rice cooker that is most suitable for business use and the like.

Note that, in the present embodiment, the above first to first embodiments are also described.
The connection of the seventh steam pipe has substantially the same configuration as that of the first embodiment.

(Embodiment 3) Next, FIGS. 15 to 31 show a first and a first embodiment which can be commonly applied to the electric rice cookers of the first and second embodiments.
The specific configuration of the operation panel 11 according to the third embodiment of the present invention, which is common to the second electric rice cooker units 2A and 2B, the configuration of the rice cooking / heating control circuit, and the rice cooking / heating control based on the control circuit And the contents of.

First, FIG. 15 shows a specific configuration of the operation panel 11 described above. The operation panel 11 has a timer reservation set time and current time display section 11a as a display section, and an upper first display section. Electric rice cooker unit 2
A rice cooker / insulation information display section 11b for A, a rice cooker / insulation information display section 11c for the lower second electric rice cooker unit 2B,
They comment display unit 11d~11f corresponding to each of the display units 11a~11c is also rice starting switch SW ₁ as the operation switch section, and the holding switch SW _2, Cancellation switch SW _3, the first upper side, lower-side second First and second selection switches SW ₄ and SW ₅ for selecting each of the electric rice cooker units 2A and 2B, and a timer reservation rice cooker switch S
W ₆ , a time setting switch SW ₇ for timer reservation, and a setting switch SW _{8 for the} same time are provided.

FIG. 16 shows the operation panel 1 as described above.
The operation of each of the operation switches 1 selects or sets a later-described rice-cooking or heat-retention operation state of any of the upper-stage first and lower-stage second electric rice cooker units 2A and 2B, and corresponds to the set contents. Fig. 2 shows a configuration of a rice cooking and heat keeping control circuit that executes rice cooking and heat keeping control.

Next, the configuration of the rice cooking and heat retention control circuit of the present embodiment will be described with reference to FIG.

That is, first, the power supply voltage AC100 (V) from the household commercial AC power supply is supplied to the main electric heater H of the first electric rice cooker unit 2A via the temperature fuse F which detects an abnormal heating state and blows out. ₁ and the heater H ₃ , the main heater H ₂ and the heater H _{4 of} the second electric rice cooker unit 2B, and the first and second electric rice cooker units 2
A and 2B are supplied to the lid heaters H ₅ and H ₆ , respectively, and are stepped down by a step-down transformer (not shown) and rectified by a rectifier to the microcomputer control unit 91 on the control board 90 side. It is supplied as the operation power supply voltage. The control operation of the microcomputer control unit 91 will be described later in detail with reference to the flowcharts of FIGS.

The first and second electric rice cooker units 2
A, 2B rice cooking main heaters H ₁ , H ₂ , warming heater H
₃ , H ₄ and lid heaters H ₅ , H ₆ are connected to each other in parallel.

[0081] Then, the first, second electric cooker unit 2A, between the rice for the main heater H ₁ of 2B and heat retention heater H _3, first each between the H ₂ and H _4, the 2 relay switches RS ₁ and RS ₂ , and the heat retention heater H ₃ ,
First to fourth triacs TR _{1 to} TR ₄ are connected to H ₄ and lid heaters H ₅ and H ₆ , respectively. The control gate terminals of the _{first to fourth} triacs TR _{1 to} TR 4 are connected to the microcomputer control unit 91.
From each other are supplied.

The microcomputer control unit 91 operates based on a clock signal from a reference frequency generation circuit (OSC), and operates according to a predetermined rice cooking / heating control program.
The fourth to fourth triacs TR _{1 to} TR ₄ are controlled independently of each other by ON / OFF control, whereby the rice cooking main heaters H ₁ and H ₂ , the warming heaters H ₃ and H ₄ , the lid heater H ₅ and
The state of power supply to H ₆ is controlled in accordance with, for example, predetermined rice cooking and heat retention characteristics. This power supply control is based on the output signals from the _first and _second thermistors T ₁ and T ₂ for detecting the temperature of the bottom of the electric rice cooker units 2A and 2B. Heating control is performed to make the temperature uniform.

The input / output interface of the microcomputer control unit 91 includes the operation switches SW _{1 to} SW _{8 of the} operation panel 11 and the display units 11 a to 11.
11c, switch operation, various settings, rice completed, the buzzer BZ, first to notify the alarm or the like, the first combined with a second thermistors T _1, T _2, second rice instrument set sensor LS _1, LS ₂ Etc. are respectively connected.

Next, the flowcharts of FIGS. 17 to 31 show the first and second electric rice cooker units 2A, 2A, 2B, and 2C selectively performed by using the single microcomputer control unit 91 of the control circuit of FIG. 2B shows the contents of rice cooking and heat retention control for each of 2B.

(Timer Reservation Step) First, the flowchart of FIG. 17 shows the contents of timer reservation setting control which is a premise of the rice cooking and heat retention control.
The control is started by energizing the control circuit of FIG.

[0086] Then, the first to perform the initial clearing of the control elements each part in step S ₁ First, the current time display of the timer reservation setting time and the current time display unit 11a in step S ₂ to the flashing display of "0:00 AM" Reset.

[0087] Then, the first, second upper and lower pairs of electric cooker unit 2A, cooking start initial time that 2B is not used together preferentially upper side first electric cooker unit in Step S ₃ performs specified 2A, the cooking-heat retention information display unit 11b for upper-side first electric cooker unit 2A is displayed in a blinking state proceeds to step S _4. As a result, it can be seen that the upper-stage first electric rice cooker unit 2A has been selected.

[0088] Next, the power failure check control in step S _5, through the upper side welding detection control of the relay contacts of rice for the main heater H ₁ of the first electric cooker unit 2A in Step S ₆ proceeds to step S _7, It determines whether insulation switch SW ₂ is pressed.

[0089] As a result, when the heat insulation switch SW ₂ of the NO is not pressed, rice start switch S of the step S ₈
The process proceeds to the state confirmation of W _1, thermal insulation of the YES switch SW ₂
When is pressed, after the data determines whether pot without memory rice instrument can not walk proceeds to step S _9, if there is a rice device proceeds to set the timer control of incubating process (details will be described later) .

[0090] A at the start cooking by the upper side the first electric cooker unit 2A, ON stove start switch SW ₁ proceeds to step S _8, a result of the OFF determination,
When cooking start switch SW ₁ it is determined YES is ON, the process proceeds to step S _10, no pans determined based on the assumption that there is taken out of rice across the output of the first meal instrument set sensor LS ₁ on when the decision result in the memory YES the rice device is removed (no pot) is warned informed that no rice apparatus by sounding continuously for one second buzzer BZ proceeds to step S _38, described above the procedure proceeds to the step S ₅ subsequent operation.

[0091] On the other hand, when the NO determination rice unit is not removed, the process proceeds to step S _11, and informs that rice instrument sounded a beep and once short buzzer BZ is properly accommodated And proceed to the control of the rice cooking process.

[0092] Then, whether further electric cooker that is the selected in step S ₁₂ is the upper side first electric cooker unit 2A, determines whether the lower-stage second electric cooker unit 2B, depending on the determination result the process proceeds to step S ₁₂₂ of the flowchart of step S ₁₁₆ or Figure 21 of the flowchart of FIG. 20 (for the upper stage side first electric cooker unit 2A) (for the second electric cooker unit 2B).

[0093] In contrast, as cooking start switch SW ₁ yet in step S ₈ is not turned ON N
O and when it is judged, the first selection switch SW ₄ for selecting the upper side first electric cooker unit 2A. In step S ₁₃ it is determined whether the ON operation. As a result, when the determination is YES, the process goes further to step S _14, to verify whether the specified or not the upper side first electric cooker unit 2A, designated as an upper first electric cooker unit 2A since it is determined YES, and the process proceeds to step S _19, the procedure proceeds to step S ₂₀ to notify pitch and short buzzer.

[0094] On the other hand, the lower specification becomes NO because it is not under specified sequentially proceeds to step S ₁₅ to S _18, the lower side second electric rice resets the specified lower side second electric cooker unit 2B Turns off the display of the rice cooker / warmer information display section 11c of the cooker unit 2B, further specifies the upper first electric cooker unit 2A, and then displays the cooker / warm information display section of the upper first electric cooker unit 2A. 11b is displayed in a blinking state. And, then the process proceeds to step S ₂₀ by performing the pitch and short buzzer displayed in step S _19.

[0095] Next a second option to select a step S ₂₀ the lower side second electric cooker unit 2B switch SW ₅
It is determined whether or not is turned ON. As a result, YES
And when it is judged further proceeds to step S _21, and checks whether or not the specified upper side first electric cooker unit 2A, since the second electric cooker unit 2B is selected proceeds to step S _26, if not specified as an upper first electric cooker unit 2A, the flow proceeds to step S ₂₇ to notify pitch and short buzzer.

On the other hand, since it is not an upper designation, step S
Proceeds to ₂₂ to S _25, the upper side first electric cooker unit 2A
Is reset, the display of the rice cooking / heating information display section 11b of the upper first electric rice cooker unit 2A is turned off, and the lower second electric rice cooker unit 2B is further designated, and then the lower first electric rice cooker unit 2B is designated. The rice cooker / heat retention information display section 11c of the second electric rice cooker unit 2B is displayed in a blinking state. Then, the process proceeds to step S ₂₇ by performing the pitch and short buzzer displayed in step S _26.

[0097] In step S _27, determines whether or not the timer reservation switch SW ₆ is turned ON.

As a result, a timer reservation switch S of NO
During normal rice which W ₆ has not been turned ON, the step S
It proceeds to step ₂₈ to determine whether or not the current time setting operation has been performed. If the current time setting operation has been performed (YES), the hour setting switch SW ₇ and the minute setting switch SW ₈ are further processed in steps S ₂₉ and S _30. It performed sequentially determines the oN operation state, when the YES of oN respectively proceeds to current time set flow of step S ₃₂ after having started the 5-second timer for time adjustment process proceeds to step S _31, the current time to after performing the set returns to the aforementioned step S ₅ and subsequent operation.

[0099] On the other hand, when the timer reservation switch SW ₆ it is determined YES in Step S ₂₇ is turned ON, it is determined whether it is set the current time advances to step S _33, the determination result depending on, the electric cooker unit, the timer reservation proceeds to step S ₃₄ when the YES while determining whether a upper side first electric cooker unit 2A, when NO, further Step S
Proceeding to ₃₅ , first, it is determined whether or not the current time set memory is in a state where the current time can be set. Then, as a result, after the next is lit displays the current time in the first current time display unit 11a proceeds to step S ₃₆ if YES, the accurately set the current time in step S _37. On the other hand, after the buzzer informing of one second shifts to step S ₃₈ when the NO that is not ready to present time set memory can set the current time for some reason such as a power failure (alarm), the step S ₅ on executing the power failure check control of the power failure check flowchart again repeated control step S ₆ after the above, the process proceeds to the first operation of step S _36, S ₃₇ when it is determined YES at step S _35.

On the other hand, as described above, in the ON / OFF determination of the heat retention switch SW ₂ in step S ₇ , if YES is determined, the process proceeds to step S ₉ , where the data in the potless memory is that there is no rice cooker. Judge whether it indicates
YES pot without the determination in step S ₁₀ described above when YES
If it is determined that as well as rice device proceeds to step S ₃₈ is informed that it has not been set.

[0102] In contrast, when the rice device is properly set, substantially similarly to the current time and if the time of cooking of step S ₃₃ it is determined whether or not it is set the routine proceeds to step S ₃₉ , according to the determination result, electric cooker unit has been-holding temperature set proceeds to step S ₄₀ when YES is the upper side first electric cooker unit 2A in which either the lower side second electric cooker unit while determining whether the 2B, when NO, further proceeds to step S _41, first, the current time set memory determines whether a state capable of setting the current time. And as a result, YES
After then lit displaying the current time in the first current time display unit 11a proceeds to step S ₄₂ if, exactly set (determine) the current time in step S ₄₃ to. On the other hand, when the NO that is not ready to present time set memory can set the current time for some reason such as a power failure is directly and shampoo to step S _40, the electric cooker unit selected ones of either the upper and lower Determine if there is any.

[0102] As a result of the decision in step S _40, step S when a YES electric cooker unit selected is the upper side first electric cooker unit 2A
_44, the first cooking Yasushi information display unit 11 for an electric cooker unit 2A of the operation panel 11 proceeds to step S ₄₅
b is turned on to display the set heat retention information and to temporarily display the heat retention. On the other hand, the step as a result of the determination in S _40, an electric rice cooker has been selected lower stage second
Step S when NO is the electric rice cooker unit 2B
_46, the second cooking Yasushi information display unit 11 for an electric cooker unit 2B of the operation panel 11 proceeds to step S ₄₇
The display of the set heat retention information is displayed by lighting c, and a display indicating that the heat retention is being performed is performed. Then, after that, depending on whether the selected electric rice cooker unit is the upper first electric rice cooker unit 2A or the lower second electric rice cooker unit 2B, step _{S306 in} the flowchart of FIG. 30 or FIG.
The process proceeds to any one of steps _{S351 in} the flowchart of FIG.

[0103] Next, steps of the flowchart in the case where the set timer cooking reservation time of YES and the determined upper side first electric cooker unit 2A determines in step S ₃₄ is performed, followed by 18 after starting the S _48, the counting operation of the 30 second timer to determine the set operation of the reservation time with a set operation proceeds to S ₄₉ is informed ring the pitch and one buzzer that was made, in step S ₅₀ Proceeding to two types of reservation times n within one day (for example, whether or not the set number n of the timer reservation times of 1N (reservation 1) and 2N (reservation 2) in the afternoon is 2N (reservation 2) ( Reservation 1) is determined.

[0104] As a result, the specific reservation time with blink "reservation 2" displayed in the upper side first electric cooker unit 2A proceeds to step S _51, S ₅₂ when the "reservation 2" YES Turn on. On the other hand, if NO for "reservation 1", the process proceeds to steps _S53 and _S54 to flash the "reservation 1" display of the first electric rice cooker unit 2A on the upper side and to specifically light the reservation time.

[0105] Thereafter, each of the process proceeds to step S _55, and determines whether the cooking start switch SW ₁ is turned ON, when the YES that cooking start switch SW ₁ is turned ON, the above proceeds to step S ₅₉ The current time N is subtracted from the set reservation time S, and the subtraction value is smaller than, for example, one hour (1.00 h) of the total required rice cooking time set in advance corresponding to the maximum rice cooking amount. Is determined. As a result, if YES then the process proceeds to step S _60, continues to output an alarm by a buzzer informing as a cooking impossible. When the determination is NO, the process proceeds to the rice cooking set flowchart of the upper first electric rice cooker unit 2A in FIG. 20, which will be described later.

[0106] On the other hand, when cooking starts switch SW ₁ in step S ₅₅ is NO OFF, assuming that a timer reservation cooker, firstly sequentially proceeds to Step S _56, S _58, when the timer switch Whether the setting switch SW ₇ is turned ON or not, and the same setting switch SW ₈ is turned ON
It is determined whether or not the operation has been performed.

[0107] Then, in response to the determination result, step S _57, S ₆₈ at each setting switch SW _7, when the partial set switch SW ₈ is turned ON, the step S ₆₁ corresponds respectively thereto ~S _67, when the step S ₆₉ to S _75, performs the partial setting control, the final reservation time setting switch in step S ₇₈ via the power failure check flow of step S ₇₇ O
N, proceed to OFF confirmation. As a result, while repeating the the above operation when NO, the case of YES, the process proceeds to the above step S ₄₈ following operation.

On the other hand, in steps S ₅₆ and S ₅₈ , N
If neither the O-time setting switch SW ₇ nor the minute setting switch SW ₈ is turned ON, the above-mentioned 3 is set in step _S76.
After waiting for 0 seconds, steps S _{79 to} S _{79 in} the flow of FIG.
Return to ₈₁ .

[0109] Further, NO in the determination in step S ₃₄
Lower second electric rice cooker unit 2 determined to be (lower)
When the timer rice cooking reservation time of B is set, the process proceeds to steps S ₇₉ and S _{79 in} the flowchart of FIG.
After proceed to ₈₀ set operation is started the counting operation of the 30 second timer to determine the set operation of the reservation time while notifying ring the pitch and one buzzer that was made, daily routine proceeds to step S ₈₁ Two types of time n
(For example, n = 1N in the morning (reservation 1) and 2N in the afternoon (reservation 2)
It is determined whether the set number n of the timer reservation time is 2N (reservation 2) (reservation 1).

As a result, if "reservation 2" is YES, the process proceeds to steps _S82 and _S83 to flash the "reservation 2" display of the lower second electric rice cooker unit 2B and to specifically set the reservation time. Turn on. When the "reservation 1" in the other NO, lights the specific its reserved time with blink "reservation 1" displayed in the lower side second electric cooker unit 2B proceeds to step S _84, S _85.

[0111] Thereafter, each of the process proceeds to step S _86, and determines whether the cooking start switch SW ₁ is turned ON, when the YES that cooking start switch SW ₁ is turned ON, the above proceeds to step S ₉₀ The current time N is subtracted from the set reservation time S, and the subtracted value is smaller than, for example, one hour (1.00 h) of the total required rice cooking time set in advance corresponding to the maximum rice cooking amount. Is determined. As a result, when the result is YES, the process proceeds to step _S91 , and it is determined that the rice cannot be cooked, and the alarm by the buzzer notification is continuously issued. When the determination is NO, the process proceeds to the rice cooking set flowchart of FIG. 21 described later.

[0112] On the other hand, when cooking starts switch SW ₁ in the determination of step S ₈₆ is NO OFF, assuming that a timer reservation cooker, first sequential steps S _87, S
Proceed to ₈₉ to set the time switch S for the above timer switch.
Whether or not the W ₇ has been turned ON, going to determine whether or not the same minute set switch SW ₈ is turned ON.

In response to the determination result, the buzzer notifies that the hour setting switch SW ₇ and the minute setting switch SW ₈ have been turned on in steps S ₈₈ and S ₉₉ , respectively.
Step S ₉₂ to S ₉₇ each correspondingly, the step S
When ₁₀₀ to S _106, performs the minute setting control, the step S ₁₀₈
The final reservation time setting switch ON of step S ₁₀₉ through the power failure confirmation flow, it proceeds to the OFF confirmation. As a result, while repeating the the above operation when NO, the case of YES, the process proceeds to the above step S ₇₉ following operation.

On the other hand, in steps S ₈₇ and S ₈₉ , N
If neither the O-time setting switch SW ₇ nor the minute setting switch SW ₈ is turned ON, the process waits for the result of the above 30 seconds in step S ₁₀₇ , and then proceeds to steps S ₇₉ to S _{79 in} the flow of FIG.
Back to S _81.

By the way, when the timer reservation time is set to the time at which the appropriate timer reservation rice is determined to be NO in the determination at step _S59 in the flowchart of FIG. 18, the next step in the flowchart of FIG. S
Proceeds to _110, pitch, after notification beep twice buzzer, the reservation time display lights on the upper side cooking Yasushi information display portion 11b of the first electric cooker unit 2A in step S _111, the power failure check (step S ₁₁₂₎ in step S ₁₁₃ again after performing in turn the same determination as in step S ₅₉ described above is repeated until is YES.

When the result is YES, the display of the reservation time is turned off (step _S114 ), the timer reservation rice cooking memory is set (step _S115 ), and the rice cooking display is turned on (step _S116 ).

Then, the process enters the water absorption control step of the upper first electric rice cooker unit 2A shown in the flowchart of FIG.

[0118] Further, when the proper timer reservation cooking timer reservation time to the possible time it is determined NO in the determination in step S ₉₀ of the flowchart of FIG. 19 is set, then step in the flowchart of FIG. 21 S ₁₁₇
The proceeds, after buzzer informing twice, the reservation time display lights on the upper side cooking Yasushi information display portion 11b of the first electric cooker unit 2A in step S _118, subjected to confirmation outage (step S ₁₁₉₎ now the same determination as the above-described step S ₉₀ in step S ₁₂₀ again on the repeated until is YES.

If the result is YES, the display of the reserved time is turned off (step _S121 ), the timer reserved rice cooking memory is set (step _S122 ), and the rice cooking display is turned on (step _S123 ).

Then, a water absorption control step of the lower second electric rice cooker unit 2B shown in the flowchart of FIG. 23 is started.

(Water Absorbing Step) First, in the flowchart of FIG. 22 showing the water absorbing step of the upper-stage first electric rice cooker unit 2A, steps _S124 , S
_The rice cooker temperature is determined sequentially in ₁₂₉ and _S133 , and the rice cooker temperature is
First, when the temperature is 30 ° C. or lower, steps S ₁₂₅ , S ₁₂₆ , and S _{127 are performed.}
In duty ratio of 8/14 the rice for the main heater H _1,
Heat insulation heater H ₃ is duty ratio 6/14, lid heater H ₅
Are turned on at duty ratios of 6/14%, respectively, to achieve a target water absorption temperature (for example, 40 ° C.), and water absorption heating is continued until it is determined in step _S128 that the water absorption time is 600 seconds (10 minutes).

[0122] Further該飯device temperature is higher than 30 ° C. Although the step when YES in step S ₁₂₉ of 40 ° C. or less S
_130, S _131, the duty ratio 6/14 the rice for the main heater H ₁ in S _132, insulation heater H ₃ duty ratio 8 /
14, lid heater H ₅ duty ratio 6/14%, respectively O
Maintaining the target water temperature in the N, similarly step S ₁₂₈
The water absorption heating is continued until it is determined that the water absorption time is 600 seconds (10 minutes).

[0123] Further該飯device temperature is higher than 40 ° C. Although the step when YES in step S ₁₃₃ of 45 ° C. or less S
_{In 134} , S ₁₃₅ , and S ₁₃₆ , the main rice cooker H ₁ has a duty ratio of 4/14, and the heat retaining heater H ₃ has a duty ratio of 10.
/ 14, and maintain the target water temperature lid heater H ₅ in the duty ratio of 6/14% respectively ON, also step S
Water absorption heating is continued until it is determined at ₁₂₈ that the water absorption time of 600 seconds (10 minutes) has elapsed.

When the temperature of the rice cooker is higher than 45 ° C. and the answer is NO in step S ₁₃₃ , steps S ₁₃₇ , S ₁₃₈ , S
OFF the rice for the main heater H ₁ in _139, heat insulation heater H ₃
Duty ratio 12/14, and maintaining the target water temperature lid heater H ₅ in the duty ratio of 6/14% respectively ON, likewise water time 600 seconds at step S ₁₂₈ (10
Continue heating water absorption until the elapse of the minute) is determined.

When the water absorption step is completed in this way,
This time, the process proceeds to the cooking process including the determination of the total number shown in the flowchart of FIG.

Next, the lower second electric rice cooker unit 2B
In the flowchart of FIG. 23 showing the water absorption step, step S _140, S _145, S sequentially determines rice reactor temperature at _149, the rice device temperature, first 30 ° C. When the following step S _141,
S _142, S ₁₄₃ the duty ratio 8/14 the rice for the main heater H _1, the heat insulating heater H ₃ a duty ratio 6/1
4, the duty ratio of 6/14% respectively ON lid heater H ₅
To achieve the target water absorption temperature (40 ° C.)
Water absorption heating is continued until it is determined in step ₁₄₄ that the water absorption time is 600 seconds (10 minutes).

[0127] Further該飯device temperature is higher than 30 ° C. Although the step when YES in step S ₁₄₅ of 40 ° C. or less S
_{At 146} , S ₁₄₇ , and S ₁₄₈ , the main rice cooker H ₁ has a duty ratio of 6/14, and the warming heater H ₃ has a duty ratio of 8/14.
14, lid heater H ₅ duty ratio 6/14%, respectively O
Maintaining the target water temperature in the N, similarly step S ₁₄₄
The water absorption heating is continued until it is determined that the water absorption time is 600 seconds (10 minutes).

[0128] Further該飯device temperature is higher than 40 ° C. Although the step when YES in step S ₁₄₉ of 45 ° C. or less S
_150, S _151, the duty ratio 4/14 the rice for the main heater H ₁ in S _152, the duty ratio of 10 warmth heater H ₃
/ 14, and maintain the target water temperature lid heater H ₅ in the duty ratio of 6/14% respectively ON, also step S
Water absorption heating is continued until it is determined in step ₁₄₄ that the water absorption time is 600 seconds (10 minutes).

[0129] Further該飯device temperature, step S ₁₅₃ when the NO at a high step S ₁₄₉ than 45 ° C., S _154, S
OFF the rice for the main heater H ₁ in _155, heat insulation heater H ₃
Duty ratio 12/14, and maintaining the target water temperature lid heater H ₅ in the duty ratio of 6/14% respectively ON, likewise water time 600 seconds at step S ₁₄₄ (10
Continue heating water absorption until the elapse of the minute) is determined.

Thus, when the water absorption step is completed,
This time, the process proceeds to the cooking process including the total number determination shown in the flowchart of FIG.

(Cooking Step) In general, in determining the total number of a rice cooker, for example, based on an ideal heating curve of the rice cooker in which a temperature from a certain temperature after the water absorption step to a boiling temperature is plotted in a predetermined step, the curve is used. The total number is determined by the integrated value of the ON or OFF time of the main rice cooking heater from a certain total number determination start temperature to a total number determination end temperature.

However, in an actual rice cooker, for example, there is variation in the temperature of the water used and the like, and it is not always possible to perform an accurate total number determination only by the main total number determination method described above.

Therefore, in this configuration, a judgment correction step capable of taking in judgment correction data in consideration of various conditions affecting the water temperature equality number judgment before the main number judgment is executed.

In the judgment correction process of the upper-stage first electric rice cooker unit 2A, first, in step _S156 of the flowchart of FIG.
The counting operation of the judgment correction timer for counting V) is started by using the time from 0 ° C. to 65 ° C. as a parameter.

Then, subsequently, steps S ₁₅₇ , S ₁₅₈ , S
In _159, the duty ratio of the main heater H ₁ for the cooking 8/14, the duty ratio of the heat insulation heater H ₃ 6/1
4 performs each raised cooking in the ON heating the duty ratio of the lid heater H ₅ at 12/14, then step S
Proceeding to ₁₆₀ , the target temperature T ₀ ° C at the time of the judgment correction (for example, T ₀ =
(65 ° C.) or less. As a result, YE
If the rice cooker temperature has not yet risen to a state where the temperature exceeds the target temperature T ₀ ° C in S, the heating at the above heating amount is performed until the target temperature T ₀ ° C is exceeded while performing the power failure check in step _S161. continue.

If the rice cooker temperature exceeds the target temperature T ₀ ° C. and is determined to be NO, the process proceeds to steps S ₁₆₂ and S ₁₆₅ , where the count value V of the determination correction timer is 0 or more and the first setting is performed. A value less than the value V ₁ or the first
Determining whether the set value is a second set value smaller than V ₂ at V ₁ or more, or the second set value V ₂ greater than or equal if each decision in which, in the case of proceeding to step S ₁₆₃ While the correction value is set to one down, in the case of step S
The determination correction value in terms of the 1 upset at _166, the duty ratio of 1 lid heater H ₅ respectively proceeds to a step S ₁₆₄
Turn on with full power of 4/14. On the other hand, determination correction value V when in the proper range smaller than the second set value V ₂ in the first set value V ₁ or more, the process proceeds to step S _164.

When the judgment correction is completed as described above,
As described above, enters the main case number determined first lid heater H ₅ at step S ₁₆₄ respectively in the ON at full power duty ratio 14/14.

[0138] In該合number determination, first, in step S _167,
According to the ideal heating curve described above, for example, a temperature from 65 ° C. to 100 ° C. is set at a predetermined temperature interval for a predetermined number m (for example, m = 1 to n).
(N = 30)) The total number determination set temperature Tm (for example, Tm = 65.0 ° C., 66.2 ° C., 67.3 ° C., 68.5).
° C, 69.7 ° C ... 97.7 ° C, 98.8 ° C, 1
00.0 ° C.) to determine less either to the ON main heater H ₁ for cooking at full power duty ratio 14/14 when the YES in accordance with the determination result, 8 seconds at step S ₁₆₉ It is determined whether or not it has elapsed.

[0139] On the other hand, when NO is the main heater H ₁ for the cooker to OFF in step S _171, accumulates the same OFF time t at step S _172.

[0140] Then, when either 8 seconds in step S ₁₆₉ becomes YES elapsed, or the integration of step S ₁₇₂ the main heater H ₁ OFF time for cooking at t been completed,
Respectively proceeds to a step S _170, reaches the m sequentially include determining the number n th go to 100.0 ° C. from 65.0 ° C. of the case number determined set temperature Tm (n = 30, i.e. 100 ° C. ones) It is determined whether or not.

[0141] When the determination result is still NO serves to Enkurimento to m = m + 1 advances the value of the m every cycle at the step S _173, step S ₁₆₄ while performing a power failure check in step S ₁₇₄ operation of to S ₁₇₀ (the case number determination operation) until YES in step S ₁₇₀ is repeated (until the number if the determination is finished).

Then, when YES is reached, step S is performed for the first time.
Proceed to ₁₇₅ to start the count operation of the one-second timer, the main heater H ₁ for cooking at step S _176, S _177,
While each temporarily OFF warmth heater H _3, ON duty ratio 14/14 lid heater H ₅ at step S ₁₇₈
Step S while preventing the lid from dewing
_{At 179} , the elapse of the one second is determined. As a result, if YES, the process proceeds to the boiling maintaining step of the flow in FIG.
When O is while performing a power failure check in step S _180, and repeats the operations of steps S ₁₇₆ to S _179.

The above determination correction step and total number determination step are performed in the same manner for the lower second electric rice cooker unit 2B as shown in the flowchart of FIG.

That is, first, in the judgment correction step, in step _S181 , the judgment correction coefficient (for example, a coefficient determined using the time from the above-mentioned water absorption target temperature of 40 ° C. to 65 ° C.) as a parameter, a judgment correction timer for V count Start the counting operation.

Then, subsequently, steps S ₁₈₂ , S ₁₈₃ , S
In _184, the duty ratio of the rice for the main heater H ₂ 8/14, the duty ratio of the insulation heater H ₄ 6/1
4 performs each raised cooking in the ON heated lid heater H ₆ the duty ratio at 12/14, then step S
Proceeding to ₁₈₅ , the target temperature T ₀ ° C at the time of the judgment correction (for example, T ₀ =
(65 ° C.) or less. As a result, YE
If the temperature of the rice cooker has not risen to the state where the temperature still exceeds the target temperature T ₀ ° C of S, the heating with the above heating amount is performed until the temperature exceeds the target temperature T ₀ ° C while confirming the power failure in step S _186. continue.

When the rice cooker temperature exceeds the target temperature T ₀ ° C and is determined as NO, the process proceeds to steps S ₁₈₇ and S _189, and the count value V of the determination correction timer is set to 0 or more and the first setting is performed. A value less than the value V ₁ or the first
Determining whether the set value is a second set value smaller than V ₂ at V ₁ or more, or the second set value V ₂ greater than or equal if each decision in which, in the case of proceeding to step S ₁₈₈ While the correction value is set to one down, in the case of step S
The determination correction value in terms of the 1 upset at _190, each duty ratio 1 the lid heater H ₆ proceeds to step S ₁₉₁
Turn on with full power of 4/14. On the other hand, when the judgment correction value V is within the appropriate range of the first set value V ₁ and smaller than the second set value V ₂ , the process proceeds to step S _191.
Proceed to.

When the judgment correction is completed as described above,
As described above, it enters the main case number determined by the first lid heater H ₆ in step S ₁₉₁ respectively to full power ON duty ratio 14/14.

[0148] In the該合number of decision, first, in step S _192,
According to the ideal heating curve described above, for example, a temperature from 65 ° C. to 100 ° C. is set at a predetermined temperature interval for a predetermined number m (for example, m = 1 to n).
(N = 30)) The total number determination set temperature Tm (for example, Tm = 65.0 ° C., 66.2 ° C., 67.3 ° C., 68.5).
° C, 69.7 ° C ... 97.7 ° C, 98.8 ° C, 1
00.0 ° C.) to determine less either, O the main heater H ₂ for cooking rice in step S ₁₉₃ when the YES based on the determination result at full power duty ratio 14/14
In step _S194 , it is determined whether eight seconds have elapsed.

[0149] On the other hand, the rice for the main heater H ₂ to OFF in step S ₁₉₆ when NO, the integrating the OFF time of the cooking for the main heater H ₂ t in step S _197.

If 8 seconds have elapsed in step S ₁₉₄ and the answer is YES, or if the integration of the heater OFF time t has been completed in step S ₁₉₇ , the flow advances to step S ₁₉₅ , where M of judgment set temperature Tm is 6
It is determined whether or not the number n of determinations (n = 30, that is, 100 ° C.) has been reached sequentially from 5.0 ° C. to 100.0 ° C.

If the determination result is NO, step S
While Enkurimento to m = m + 1 advances the value of the m every cycle is _199, the operation of the steps S ₁₉₁ to S ₁₉₅ until YES in step S ₁₉₅ while performing a power failure check in step S ₁₉₈ ( Repeat until the combination determination is completed.

Then, when YES is reached, step S is performed for the first time.
Proceed to ₂₀₀ to start the count operation of the one-second timer, the main heater H ₂ for cooking rice in step S _201, S _202,
While each OFF warmth heater H _3, Step S ₂₀₃
In while preventing dew was capped heater H ₆ to the ON state of the duty ratio 14/14, the 1 at step S ₂₀₄
Determine the passage of seconds. As a result, if YES, FIG.
While the process proceeds to the boiling maintaining process of the flow of No. 7, if NO, the power failure is confirmed in step _S205 ,
₂₀₁ repeats the operation of ~S _204.

(Boiling Maintaining Step) Next, FIGS. 26 and 27 show the control contents of the boiling maintaining step of the upper first electric rice cooker unit 2A and the lower second electric cooker unit 2B, respectively.

Each of the first and second electric rice cooker units 2A and 2B of this embodiment normally takes 30 minutes (1800 minutes).
The system is configured to complete rice cooking in seconds).
Then, when the rice is not cooked within 30 minutes for some reason, a special rice cooking process is executed.

First, the control in the boiling maintaining step of the upper first electric rice cooker unit 2A in FIG. 26 will be described.

That is, when the number determination is completed as shown in the flowchart of FIG.
_{At 206} , the counting operation of the cooking timer with the above-mentioned cooking time of 1800 seconds (30 minutes) is started.

Thereafter, the process proceeds to steps S ₂₀₇ , S ₂₁₀ , and S ₂₁₃ , and the integrated time t determined as the total is 4L (0 ≦ 0).
t <t ₁ ), 3L (t ₁ ≦ t <t ₂ ), 2L (t ₂ ≦ t
<T ₃ ) and 1L (t ₃ ≦ t) are determined (however, 4L>3L>2L> 1L), and according to the determination result, (at the time of) steps _S208 and _S209 , respectively. Step S
Appropriate heating amounts are set in accordance with the total numbers determined at ₂₁₁ , _S212 (at), steps _S214 , _S215 (at), steps _S216 , _S217 (at), and further, The operation proceeds to the determination operation of each power supply voltage value in steps S ₂₁₈ , S ₂₂₁ , S ₂₂₄ , and S ₂₂₇ (92 V or less, 96 V or less, 103 V or less, 107 V or less, or more than 107 V?).

Steps S ₂₁₉ , S ₂₂₀ , S ₂₂₂ , S ₂₂₃ , S ₂₂₅ , S ₂₂₆ , and S correspond to the respective judgment results.
_{228, S 229, S 230,} S 231 appropriately set each value of the output correction coefficient A stove for the main heater H ₁ with appropriately setting the output of the cover heater H ₅ at.

Then, steps S ₂₃₂ , S ₂₃₃ , S
_{At 234} , the total number of the above is determined, and the current rice cooker temperature corresponding to the determination result is set to the cooking completion temperature of 135 ° C. (at the time) corresponding to the total number, 130 ° C (at), 125 ° C (at), 12
It is determined whether or not the temperature is 0 ° C. or less. If YES in the following, the process proceeds to step _S239, and the elapse of the cooking time of 1800 seconds is determined.

[0160] As a result, when the NO reservation rice confirmation flow through the power failure check is repeated until the time at which the reserved control of the step S ₂₀₇ to S _238.

On the other hand, when the rice cooking time is 1800 seconds (30 minutes) and the rice cannot be cooked even if the timer is not a timer reservation of YES, the process proceeds to a special rice cooking process (upper M) (details are omitted). .

On the other hand, steps S ₂₃₅ , S ₂₃₆ ,
In S ₂₃₇ and S ₂₃₈ , the rice cooker temperature of NO is adjusted to each of the cooking completion temperatures (135 ° C., 130 ° C., 1
When the temperature exceeds 25 ° C and 120 ° C), it is recognized that the cooking is completed, and the “purple process” in the flowchart of FIG.
Proceed to.

Next, control of the boiling maintaining step of the lower second electric rice cooker unit 2B in FIG. 27 will be described.

That is, when the total number determination is completed as shown in the flowchart of FIG.
_{In step 242} , the counting operation of the cooking timer in which the cooking time is set to 1800 seconds (30 minutes) is started.

Thereafter, the process proceeds to steps S ₂₄₃ , S ₂₄₆ , and S ₂₄₉ , and the integrated time t determined as the total is 4L (0 ≦ 0).
t <t ₁ ), 3L (t ₁ ≦ t <t ₂ ), 2L (t ₂ ≦ t
<T ₃ ) and 1L (t ₃ ≦ t) is determined (however, 4L>3L>2L> 1L), and according to the determination result, (at the time of) steps S ₂₄₄ and S ₂₄₅ , respectively. Step S
₂₄₇ , _S248 (at the time), steps _S250 , _S251 (at the time), steps _S252 , _S253 (at the time). The process proceeds to steps S ₂₅₄ , S ₂₅₇ , S ₂₆₀ , and S ₂₆₃ for determining each power supply voltage value (92 V or less, 96 V or less, 103 V or less, 107 V or less, or more than 107 V?).

Steps S ₂₅₅ , S ₂₅₆ , S ₂₅₈ , S ₂₅₉ , S ₂₆₁ , S ₂₆₂ , S ₂₆₂ correspond to the respective judgment results.
_{264, S 265, S 266,} S 267 appropriately set each value of the output correction coefficient A stove for the main heater H ₂ with appropriately setting the output of lid heater H ₆ in.

Thereafter, steps S ₂₆₈ , S ₂₆₉ , S
_{At 270} , the total number of the above-mentioned is further determined, and the current rice cooker temperature corresponding to the determination result is set to the cooking completion temperature of 135 ° C. (at the time) corresponding to the total number, and 130. ° C (at), 125 ° C (at), 12
It is determined whether or not the temperature is 0 ° C. or less. If the result is YES, the process proceeds to step S _275, and the elapse of the cooking time of 1800 seconds is determined.

As a result, when the result is NO, the control of steps S _{243 to} S ₂₇₄ is repeated until the reservation time comes through the reservation rice confirmation flow and the power failure confirmation flow.

[0169] On the other hand, rice cooking time 1800 seconds It will be a timer reservation rice of YES in the step S ₂₇₅ (30 minutes)
If the cooking has not been completed yet, the process proceeds to a special rice cooking process (lower M) (details are omitted).

On the other hand, steps S ₂₇₁ , S ₂₇₂ ,
In S ₂₇₃ and S ₂₇₄ , the rice cooker temperature of NO is set to the cooking completion temperature (135 ° C., 130 ° C.,
When the temperature exceeds 125 ° C. and 120 ° C.), it is recognized that the cooking is completed, and the process proceeds to “Mura-shirasu” in the flowchart of FIG.

(Murashi step) When the cooking is completed as described above,
The processing shifts to the “irregularity step” shown in the flowchart in FIG.

That is, first, in the upper-stage first electric rice cooker unit 2A, first, after the cooking is completed, step _S278 ,
Proceeding to S ₂₇₉ and S ₂₈₀ , the rice cooking main heater H ₁ ,
After turning off the heat retention heater H ₃ and the lid heater H _5, and confirming a power failure in step S ₂₈₁ , steps S ₂₈₂ , S
_{At 283} , rice cooking for the upper first electric rice cooker unit 2A
Timer cooking book display warmth information display unit 11b, while turning off each display of the reservation time, during the time of 15 minutes steaming is to light the "steaming Display" in step S _284. Next, in step S ₂₈₄ a, it is determined whether or not the lapse time of 15 minutes has elapsed. When the lapse time of 15 minutes has not elapsed, in step S ₂₈₄ b, the elapsed time of the lapse time is subtracted and displayed. Then, in a step _S284c , it is confirmed whether or not the rice cooker temperature is 110 ° C. or lower. As a result, while increasing the temperature of not more than 110 ° C. of YES at step S ₂₈₄ d and the main heater H ₁ for the cooker to the duty ratio 2 / 14ON rice device, if 110 ° C. or more NO step S ₂₈₄ to OFF main heater H ₁ for the cooker e. in Thereby, the temperature of the rice in the rice cooker in the murara process is set to 110 ° C.
And perform proper spotting. And the swing time 15
When the minute has elapsed, by intermittently beeps the completion of the "steaming process" in step S ₂₈₅ to buzzer alarm.

[0173] Then, it is determined while performing a power outage confirm whether or not it has continued for 8 times in the step S ₂₈₇ in the step S _286, while turning off the above-mentioned "steaming display" the process proceeds to step S ₂₈₈ and becomes YES is switched to display the current time in step S _289, to reset the data of the reservation rice memory in step S ₂₉₁ with turns off the cooking displayed in step S _290.

[0174] When the "watering step" of the upper-stage first electric rice cooker unit 2A is completed in this manner, the process proceeds to FIG.
The process proceeds to the warming step in the flowchart of FIG.

Next, the lower second electric rice cooker unit 2
Also in the case of the boiling process B, when the cooking in the rice cooking process is completed as shown in FIG. 27, the process shifts to the “blowing process” shown in the flowchart of FIG. 29.

That is, the lower second electric rice cooker unit 2B also completes steps S ₂₉₂ and S ₂₉₂ after the completion of the cooking.
_293, the process proceeds to S _294, the rice for the main heater H _2, kept heater H _4, a lid heater H ₆ respectively OFF, after power failure check in step S _295, step S _296, S
₂₉₇ : rice cooker for the lower second electric rice cooker unit 2B
Timer cooking book display warmth information display unit 11c, while turning off each display of the reservation time to light the "steaming Display" in step S ₂₉₈ when the steaming time of 15 minutes has elapsed. Next Step S ₂₉₈ determines the steaming elapsed time 15 minutes a, at the time of the steaming time of 15 minutes has not elapsed subtracting displays the elapsed time steaming in step S ₂₉₈ b. Then, in step S ₂₉₈ c, the rice cooker temperature is 110 ° C.
Check if: As a result, while increasing the temperature of not more than 110 ° C. of YES at step S ₂₉₈ d and the main heater H ₁ for the cooker to the duty ratio 2 / 14ON rice device, if 110 ° C. or more NO step S ₂₉₈ to OFF main heater H ₁ for the cooker e. in
In this manner, the temperature of the rice in the rice cooker in the shampooing process is maintained at 110 ° C. to perform appropriate shampooing. Then, the intermittently the beep the completion of the "steaming process" in step S ₂₉₉ and the buzzer alarm.

[0177] Then, it is determined while performing the power failure check whether continued 8 times in step S ₃₀₁ in step S _300, while turning off the "steaming Display" proceeds to step S ₃₀₂ becomes a YES In step _S303 , the display is switched to the current time display. In step _S304 , the rice cooking display is turned off, and the data in the timer reserved rice cooking memory is reset.

[0178] In this way, when the "watering step" of the lower second electric rice cooker unit 2B is completed, the process proceeds to the heat retaining step in the flowchart of FIG.

(Heat keeping step) First, the heat keeping step of the upper first electric rice cooker unit 2A shown in the flowchart of FIG. 30 will be described.

[0180] When as in the flowchart described above in FIG. 28 is "steaming process" is completed, the process proceeds to step S _349, S ₃₅₀ in FIG. 30, and the holding time elapsed causes start counting warmth elapsed time counting timer the process proceeds to step S ₃₁₅ following heat keeping control operation by calculating the timer insulation control corresponding to the thermal insulation time set in step S ₃₉ following step S ₄₇ described above in FIG. 17 in the present embodiment as a premise of the heat keeping control is It is incorporated in step S ₃₀₆ to S _314. Therefore, first, from the described control until the step S ₃₀₆ to S _314, describing the details of the heat keeping control in and after step S _315.

[0181] That is, first, when the operation of step S ₄₅ or S ₄₇ in FIG. 17 is completed, the flow proceeds to step S ₃₀₆ in FIG. 30, starts counting warmth elapsed time counting timer in step S ₃₀₇ performed once buzzer informing Let it. Then, to start the operation of the thermal insulation elapsed time in step S _308, and turns on the thermal insulation display as an upper first cooking Yasushi information display unit 11b for electric cooker unit 2A in step S _309.

[0182] Further, thereafter, starts a 14 second timer in step S _310, after the power failure check in step S _311, the duty ratio 10/14 warmth heater H ₃ in step S _312, duty lid heater H ₅ Ratio 10/1
At 4 each is turned ON, and the heating and heating are started.

[0183] Then, the process proceeds to step S _314, to determine the course of the 14 second timer, when set switch SW for time setting until time of NO in the passage of insulation starts after 14 seconds
_It is repeatedly determined in step _S317 whether or not ₇ has been turned ON. If YES, the process proceeds to step _S318 to display the above-mentioned heat retention elapsed time by lighting, and confirms a power failure in step _S319 (inspection flow).

On the other hand, after the elapse of 14 seconds, step _{S314 is performed.}
If YES is determined in step _S320 , it is determined whether or not the warming time has passed 24 hours (maximum warming time) in step _S320 after confirming the power failure in the normal warming control (step _S315 ) and displaying the warming (step _S316 ). Is determined.

As a result, if the answer is NO within 24 hours, the elapsed time of heat retention is integrated in step _S321 ,
If YES has elapsed 4 hours, and ends the integration of the heat insulating elapsed time proceeds to step S _322.

[0186] Then, the heating temperature of the heat insulating heater H ₃ is subjected to judgment of whether or not the target retained temperature 72 ° C. The following step S _323, when higher than 72 ° C. NO, the step S ₃₂₄ OFF the rice for the main heater H ₁ in step S _325, S ₃₂₆ performs a welding detection of cooking heater relay contacts, with lowering the temperature of the heat insulating heater H ₃ in the OFF, the duty ratio lid heater H ₅ at step S ₃₂₇ Turn ON at 2/14 to prevent dew on the lid and prevent white blur.

Thereafter, the process further proceeds to step _S328 .
ON at the time of setting switch SW _7, OFF judgment (the extension decision)
Is performed, and if YES (ON), it is determined again in step _S329 whether or not the maximum heat retention time 24 hours has elapsed.

[0188] Then, the result is If YES, the process proceeds to step S _330, performs blinking display of warmth elapsed time, after the display of the current insulation elapsed time proceeds to step S ₃₃₁ when NO, the through the power failure check flow of step S ₃₃₂ returns to step S ₃₂₈ described above, when the NO proceeds to control in step S _315.

[0189] On the other hand, YES is determined in step S ₃₂₃
When the 72 ° C. below, first after power failure check in step S _333, again performs kept displayed in step S _334, further determines whether the maximum incubation time 24 hours has elapsed in step S _335.

If the result of the determination is NO, the process proceeds to step S ₃₃₆ , where the elapsed time of heat retention is integrated, while YE
In the case of S, the process proceeds to step _S337, and the accumulation of the heat retention elapsed time is ended.

Then, in each case, the process proceeds to step S ₃₃₈ , where the welding of the rice cook heater relay contact is detected, and in step S ₃₃₉ , the rice cook main heater H _1.
To OFF.

[0192] Then, kept the heating temperature is equal to or at 72 ° C. or less in the step S _340, the duty ratio is a heat insulating heater H ₃ proceeds to step S ₃₄₁ when YES 9/1
While the ON at 4, when NO, the OFF warmth heater H ₃ in step S _342.

[0193] Then, the process proceeds to step S ₃₄₃ is followed respectively, attempt to maintain a target retained temperature 72 ° C. while preventing the dew of the lid in the ON capped heater H ₅ at a duty ratio 2/14.

[0194] On the other hand, then, ON of the time setting switch SW ₇ further in step S _344, to determine the OFF, in accordance with the determination result, YES again the maximum incubation time 24 hours in step S ₃₄₅ when the (ON) Is determined.

If the result is YES, the process proceeds to step _S346 , in which blinking of the warming time is displayed, and if NO, the process proceeds to step _S347 to display the current warming time, and through the power failure check flow of step S ₃₄₈ to repeat the heat retention control in step S ₃₃₃ to S ₃₄₈ described above.

Next, the step of keeping the temperature of the lower second electric rice cooker unit 2B shown in the flowchart of FIG. 31 will be described.

[0197] When as in the flowchart of FIG. 29 described above also in this case "steaming process" is completed, then the process proceeds to step S _394, S ₃₉₅ in FIG. 31, to start the counting of the insulation elapsed time counting timer the process proceeds to operation to step S ₃₆₀ following heat keeping control operation warmth elapsed time with, in the present embodiment as a premise of the heat keeping control corresponding to the thermal insulation time set in step S ₃₉ following step S ₄₇ described above in FIG. 17 control is incorporated in the step S ₃₅₁ to S _359. Therefore, first, from the described control until the step S ₃₅₁ to S _359, described heat keeping control of step S ₃₆₀ or later.

[0198] That is, first, when the operation of step S ₄₅ or S ₄₇ in FIG. 17 is completed, the flow proceeds to step S ₃₅₁ in FIG. 31, starts counting warmth elapsed time counting timer in step S ₃₅₂ performed once buzzer informing Let it. Then, to start the operation of the thermal insulation elapsed time in step S _353, and turns on the heat insulating the bottom part of the display-side second cooking Yasushi information display unit 11c of the electric cooker unit 2B at step S _354.

[0199] In addition, then, to start the 14-second timer in step S _355, after the power outage confirmed in step S _356, the duty ratio of 10/14 heat-retaining heater H ₄ in step S _357, the lid heater H ₆ duty Ratio 10/1
At 4 each is turned ON, and the heating and heating are started.

[0200] Then, the process proceeds to step S _359, to determine the course of the 14 second timer, when set switch SW for time setting until time of NO in the passage of insulation starts after 14 seconds
_It is repeatedly determined in step _S362 whether or not ₇ has been turned ON. If YES, the process proceeds to step _S363 to light up and display the above-mentioned heat retention elapsed time, and confirms a power failure in step _S364 (inspection flow).

On the other hand, after the elapse of 14 seconds, step _{S359 is executed.}
If YES is determined in step _S365 , it is determined whether or not the warming time has passed 24 hours (maximum) in step _S365 after confirming the power outage in normal control (step _S360 ) and displaying the warming (step _S361 ). .

As a result, if the answer is NO within 24 hours, the accumulated heat retention time is _calculated in step _S367 ,
If YES has elapsed 4 hours, and ends the integration of the heat insulating elapsed time proceeds to step S _366.

[0203] Then, the heating temperature of the heat insulating heater H ₄ is subjected to judgment of whether or not the target retained temperature 72 ° C. The following step S _368, when higher than 72 ° C. NO, the step S ₃₆₉ step S ₃₇₀ performs a welding detection of cooking heater relay contacts, S ₃₇₁ in OFF the rice for the main heater H _2, as well as to the OFF warmth heater H _4, the duty ratio lid heater H ₆ at step S ₃₇₂ 2 /
Turn on at 14 to prevent dew on the lid and prevent white blur.

[0204] After that, further proceed to step S _373,
ON at the time of setting switch SW _7, OFF judgment (the extension decision)
Is performed, and if YES (ON), it is determined again in step _S374 whether or not the maximum heat retention time 24 hours has elapsed.

If the result is YES, the process proceeds to step _S375 , in which blinking of the heat retention time is displayed, and if NO, the process proceeds to step _S376 to display the current heat retention time, and through the power failure check flow of step S ₃₇₇ and repeats the control steps S ₃₆₀ to S ₃₇₇ described above.

On the other hand, if the determination in step S ₃₆₈ is YES,
When the 72 ° C. below, first after power failure check in step S _378, again performs kept displayed in step S _379, further determines whether the maximum incubation time 24 hours has elapsed in step S _380.

If the result of the determination is NO, the _flow advances to step _S382 to accumulate the heat retention elapsed time, while the YE
In the case of S, the process proceeds to step _S381, and the integration of the heat retention elapsed time ends.

Then, in each case, the process proceeds to step _S383 , where welding of the rice cooker relay contact is detected, and in step _S384 , the main rice cooker H _1.
To OFF.

[0209] Then, kept the heating temperature is equal to or at 72 ° C. or less in the step S _385, the duty ratio is a heat insulating heater H ₃ proceeds to step S ₃₈₆ when YES 9/1
While the ON at 4, when NO, the OFF warmth heater H ₃ in step S _387.

[0210] Then, the process proceeds to step S ₃₈₈ is followed respectively, attempt to maintain a target temperature Temperature 72 ° C. while preventing the dew of the lid in the ON capped heater H ₅ at a duty ratio 2/14.

[0211] On the other hand, then, ON of the time setting switch SW ₇ further in step S _389, to determine the OFF, in accordance with the determination result, YES again the maximum incubation time 24 hours in step S ₃₉₀ when the (ON) Is determined.

[0212] Then, the result is If YES, the process proceeds to step S _391, performs blinking display of warmth elapsed time, after the display of the current insulation elapsed time proceeds to step S ₃₉₂ when NO, the through the power failure check flow of step S ₃₉₃ and repeats the control steps S ₃₇₈ to S ₃₉₃ described above.

As described above, in the rice cooker control system of the present embodiment, the operation panel of the upper first electric rice cooker unit 2A and the operation panel of the lower second electric rice cooker unit 2B are constituted by a single operation panel 11. The microcomputer control unit 91 is commonly used and can be selected and used in common.

Therefore, a single control board is naturally sufficient, and the cost of parts can be reduced.

(Modification 1) When the microcomputer control unit 91 is shared by a single unit as described above, the cost is certainly reduced, but as described above, the first and second electric rice cooker units are used. It is necessary to use control software common to 2A and 2B, which makes it difficult to have independent rice and heat keeping functions. In other words, there is a problem that it is difficult to design the division.

Therefore, it is possible to provide independent control units corresponding to the first and second electric rice cooker units 2A and 2B, respectively, to provide independent control software.

(Modification 2) As in Modification 1, each electric rice cooker unit 2A, 2
If B is provided with its own microcomputer control unit, communication with the control unit on the operation panel 11 becomes a problem.

Therefore, it is possible to further provide a third microcomputer control unit having a small capacity on the operation panel 11 side.

(Modification 3) In any case where the above-described various configurations are adopted, for example, the upper first electric rice cooker unit 2A and the lower second electric rice cooker unit 2A are simultaneously used. It is also possible to do so.

[Brief description of the drawings]

FIG. 1 is an external view of an electric rice cooker according to Embodiment 1 of the present invention.

FIG. 2 is a partially exploded perspective view showing a frame structure of a rice cooker cabinet of the electric rice cooker.

FIG. 3 is a perspective view of the electric rice cooker as viewed from the front of a bevel with a lid portion opened.

FIG. 4 is a perspective view of a lid pivot structure of the electric rice cooker.

FIG. 5 is a sectional view of a first guide roller portion of the electric rice cooker in a first state.

FIG. 6 is a sectional view of a first guide roller portion of the electric rice cooker in a second state.

FIG. 7 is a perspective view of a movable auxiliary cabinet part of the electric rice cooker.

FIG. 8 is a perspective view of the electric rice cooker as viewed from behind a bevel with a lid and the like opened.

FIG. 9 is a perspective view of the electric rice cooker as seen from behind a bevel with a lid and the like closed.

FIG. 10 is a perspective view showing a modification of the main part of the electric rice cooker.

FIG. 11 is an external view of an electric rice cooker according to Embodiment 2 of the present invention.

FIG. 12 is a perspective view of the electric rice cooker as seen from the front of a bevel with the lid part opened.

FIG. 13 is a partially cutaway view of the electric rice cooker as viewed from the side with its lid and the like open.

FIG. 14 is a perspective view of the electric rice cooker as viewed from the front of a bevel in a movable auxiliary cabinet opening and closing state.

FIG. 15 is an enlarged front view of an operation panel unit of an electric rice cooker main body according to Embodiment 3 of the present invention which can be commonly applied to each of the above embodiments.

FIG. 16 is a connection diagram of a control circuit unit of the electric rice cooker.

FIG. 17 is a flowchart showing the contents of timer reservation set control of the electric rice cooker.

FIG. 18 is a flowchart showing the contents of the timer set control of the first electric rice cooker unit on the upper side of the electric rice cooker following FIG. 17;

FIG. 19 is a flowchart showing the contents of the timer set control of the lower second electric rice cooker unit following FIG. 17 of the electric rice cooker.

FIG. 20 is a flowchart following FIG. 18 of the electric rice cooker.

FIG. 21 is a flowchart of the electric rice cooker following FIG. 19;

FIG. 22 is a flowchart of a water absorption control process of the upper first electric rice cooker unit of the electric rice cooker.

FIG. 23 is a flowchart of a water absorption control process of a lower second electric rice cooker unit of the electric rice cooker.

FIG. 24 is a flowchart showing the content of a total number judging control step of the upper first electric rice cooker unit of the electric rice cooker.

FIG. 25 is a flowchart showing the contents of a total number judging control step of the lower second electric rice cooker unit of the electric rice cooker.

FIG. 26 is a flowchart showing the content of a cooking control step of the upper first electric rice cooker unit of the electric rice cooker.

FIG. 27 is a flowchart showing the contents of a cooking control step of the lower second electric rice cooker unit of the electric rice cooker.

FIG. 28 is a flowchart showing the contents of a control process of the unevenness of the upper first electric rice cooker unit of the electric rice cooker.

FIG. 29 is a flowchart showing the details of a control process of the unevenness of the lower second electric rice cooker unit of the electric rice cooker.

FIG. 30 is a flowchart showing the contents of a heat retention control step of the first electric rice cooker unit on the upper side of the electric rice cooker.

FIG. 31 is a flowchart showing the content of a heat retention control step of a lower second electric rice cooker unit of the electric rice cooker.

[Explanation of symbols]

1 is a rice cooker cabinet, 2A is a first electric rice cooker unit, 2B is a second electric rice cooker unit, 3A is a first frame portion, 3B is a second frame portion, and 4a and 4b are guide rails. , 9 is an inner case, 10 is a rice cooker, 15 is a lid, 24 is a box, 25a and 25b are first guide rollers, 26
a and 26b are second guide rollers, 27 is a lid, 43,
Reference numeral 96 denotes a lid pressing roller.

Continuation of the front page (56) References JP-A-7-194320 (JP, A) JP-A-1-317409 (JP, A) Japanese Utility Model Application No. Sho 62-196120 (JP, U) Japanese Utility Model Application No. Sho 62-196121 (JP) , U) Actually open 60-171219 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27/00

Claims (3)

(57) [Claims] 1. A plurality of electric rice cooker units each having a rice cooking and heat retaining function are installed vertically in a single rice cooker cabinet, and the uppermost electric rice cooker unit of the plurality of electric rice cooker units is provided. While opening the lid of the rice cooker cabinet above
Other electric rice cooker units can be pulled out from the rice cooker cabinet, and the electric rice cooker units can be operated for rice cooking or heat keeping in the rice cooker cabinet. In the early stage of rice cooking when each of the plurality of electric rice cooker units is not used together, the use of the uppermost electric rice cooker unit is preferentially designated, and the uppermost electric rice cooker unit is designated. An electric rice cooker is provided with a control unit for displaying that the is selected. 2. The electric rice cooker according to claim 1, wherein each of the plurality of electric rice cookers can be selectively operated for rice heating or warming operation. 3. The display indicating that the uppermost electric cooker unit is selected is a blinking display of an information display unit corresponding to the uppermost electric cooker unit. An electric rice cooker as described.