JPH02111318A - Full automatic rice boiler - Google Patents

Abstract

PURPOSE:To prevent the shortening of the life of a control device and reduce heating countermeasures by issuing a command to cut off the control device from a power source while keeping the power feed to a rice boiler after the completion of rice boil. CONSTITUTION:A rice boiling means 21 feeding a power source to a rice boiler 10 via a relay 22 having an ordinarily closed contact, a control cutoff means 23 generating an output when rice boil is completed, and a keep relay feeding the power source to a control device 13 and cutting off the control device from the power source via the output of the control cutoff means are provided in a full automatic rice boiler performing rice measurement, rice wash, rice boil, and heat preservation. The control device is cut off from the power source when the heat preserving operation is started after rice boil is completed, thus the control device is not excited during the heat preserving operation, the shortening of the life of the control device is prevented, and heating countermeasures can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fully automatic rice cooking device that automatically performs a series of tasks such as measuring and washing stored rice, cooking it, and keeping it warm.

[Conventional technology]

FIG. 4 is an overall configuration diagram showing a conventional fully automatic rice cooking device disclosed in, for example, Japanese Patent Application Laid-Open No. 62-106720.

In the figure, (1> is the main body, (2I is the rice storage chamber installed at the top of the main body (1!), (31 is the rice storage chamber (rice measuring device installed at the bottom of 21), (the grapes are rice Measuring device (a shoe that is arranged at an angle below 31 and drops the rice), (51 is the main body (1)
(6) is a rice washing device provided at the bottom of the chute (4) and the water amount control device (5), (71 is provided at the bottom of the rice washing device (6) This is a conveyor device.

The rice storage chamber (21) is formed in the shape of a hopper and has an open bottom.A casing (3a) constituting the rice measuring device (3) is integrally formed at the bottom of the rice storage chamber (2). A mass (3b) is rotatably housed within the casing (3a), and the mass (3b) is divided into four chambers by partitioning the inside of a cylindrical body with an open top and bottom by a cross-shaped partition wall extending radially. Measure the specified amount of rice every 174 revolutions.

The mass (3b) is rotated by a motor (3d) via a disk (3C) in contact with its outer periphery. Casing (3
An unopened lower opening with almost the same shape as the opening shape of the − chamber of the cell (5b) is formed at the bottom of the cell (&).
When one of the chambers coincides with the uninstalled lower opening of the casing (3a) due to the rotation of the mass (3b), the rice placed in the chamber 5b) falls downward through the uninstalled lower opening. The water flow control device (5) includes a water receiving tank (5) connected to a water supply pipe (5b) connected to a suitable water source via a control valve (5a).
5C], a water supply pipe (5d) is connected to the bottom of the water receiving tank (5C), and the water supply pipe (5d) is provided with a control valve (5θ) for controlling the amount of water flowing therethrough. The rice washing device (6) is a cylindrical rice washing container with an open top and bottom (
6a) and a stirring rod (6a) inside the rice washing container (6a).
b) is arranged, and its upper end is connected to the rotating shaft of the motor (6C). The bottom opening of the rice washing container (6a) is connected to the bottom plate (
The opening and closing of the bottom plate (6d) is linked to the conveying device (7). Transport equipment f (7)
has a trough-shaped conveyor (7a), and the conveyor (7a) is arranged so that its approximately middle portion is located directly below the rice washing container (6a).

It is attached to a drive device (not shown) so as to see-saw (swing) about this intermediate portion as a fulcrum. The bottom plate (6d) is pivotally attached to the outer side of the bottom opening of the Fi container (6a), and is pressed downward by the force of a spring. (8a) and (8b) are detection switches provided below the carrier (7a).

The detection switch (8a) detects that the carrier (7a) is open, and the Yokota switch (8b) detects that it is closed. (9) is a drainage receptacle installed at the bottom of the main body (1), and when the conveyor (7a) swings with its right end (7b) facing down, water flows from this right yIA (7b). It catches the water and discharges it to the outside of the main body (1). αα is a rice cooker, and is arranged in a position to receive rice and water flowing down from the left end when the carrier (7a) swings with its left end (7C) facing down. The lid aD of the rice cooker an is opened so that rice and water flowing down may enter the rice cooker αα. At that time, the handle (11a) formed on the top surface of the lid aD
) is held by a lid holding device α2 fixed in the two main bodies fil, and the lid αB is held open in the middle, that is, held open at an angle of 90 degrees or less. αj is composed of a microcomputer (hereinafter referred to as microcomputer), and a motor (1
), (60).

A control device that controls the control valve (5e) and the lid holding device a3, a control device aj installed on the upper part of the α4Fi main body (1)
A rice measuring switch (14a) that controls rice measurement, a rice cooking switch (14b) that controls rice cooking, and a rice washing switch (14c) that controls rice washing, etc. are connected to the control display board. A selection switch is provided.

Next, the operation of the above device will be explained.

First, open the lid 011 of the rice cooker 01 (rice storage room (2) if K rice is not put in properly), hold it in the open state with the lid holding device 0z, and then open the lid 011 of the rice cooker 01. Set the rice cooking amount adjustment section and rice cooking time adjustment section. And 2
Select the selection switches (14a) to (14c) to select the range of operations to be performed. now.

When the rice cooking switch (14b) is selected, the control device α3 determines whether the lid αB is open or not, and if the lid αB is held, the controller enters a standby state until the operation start time set by the timer. Then, when the operation start time set by the timer comes, the conveyor (7a) is swung toward the drainage side (the side shown by the two-dot chain line in FIG. 4). As a result, the bottom opening of the rice washing container (6a) is closed by the bottom plate (6d) interlocking with the carrier (7a).

Next, the cell (3b) of the measuring device (3) is rotated a predetermined number of revolutions based on the rice cooking amount set, and the weighed rice is thereby transferred into the rice washing container (6a) through the chute (4). Injected. After that, the control valve (5e) is activated and the container (
6a), and at the same time the stirring rod (6b) is rotated to wash the rice. At this time, the bottom opening of the rice washing container (6a) and the bottom plate (6d) are not completely sealed, allowing some water to leak out. As a result, the sewage from washed rice passes through the nogijidai conveyor (7a) and drains into the drainage receiver (9).
Water is drained from the main body +11. Such rice washing is repeated until the turbidity of the waste water becomes less than a predetermined value or a predetermined time elapses, and after the final rice washing, the solenoid valve (5θ) is closed.

Stops operation until drainage is complete. Then, the carrier (
7a) is swung so that the left side (7C) is facing down, and the rice washing container (
The bottom of 6a) is open. Then, the control valve (5e) is opened for a predetermined period of time, and water is supplied into the container (6a).
6a) and the conveyor (7a), rice and a corresponding amount of water are charged into the rice cooker Q[i]. Next, the conveyor (7a) is again swung to the drainage side,
Supply water only for a specified time.

Post-cleaning is performed. The position of the carrier (7a) is detected by detection switches (8a) and (8b) K,
3, it is precisely controlled. At the same time as the post-washing, the lid holding device α2 is operated and the holding of the lid αυ is released.

All lids are closed by their own weight. On the other hand, rice cooker al
The rice inside the rice cooker is raised up like a mountain, and horizontal vibration is applied to the rice cooker by a vibration table (not shown) installed at the bottom of the rice cooker. Rice is placed evenly. Thereafter, a standby time is taken to soak the rice in water for a predetermined period of time, power is supplied to the rice cooker, and once the rice has finished cooking, it enters a warming operation.

The above is the case when the rice cooking switch (14b) is selected, but when the rice measuring switch (14a)'' is selected.

From the beginning, the conveyor (7a) is rocked in the direction of the rice cooker.

The rice is weighed as described above, and the weighed rice passes through the rice washing container (6a) and is transferred to the rice cooker a via the conveyor (7a).
It is stored within the value and the lid αυ is closed.

Also, when the rice washing switch (14c) is selected.

The steps up to power supply to the rice cooker α are performed in the same manner as when the rice cooking switch (14b) is selected.

[Problem to be solved by the invention]

In the conventional fully automatic rice cooker as described above, since the rice cooker enters the warming operation after cooking the rice, the control device (13) needs to be energized for a long time, which may shorten the service life of the rice cooker.

There is a problem in that it is necessary to take sufficient measures to prevent heat generation.

This invention was made to solve the above-mentioned problems, and aims to provide a fully automatic rice cooking device that can prevent shortening of the life of the control device and reduce heat generation measures.

[Means to solve the problem]

The fully automatic rice cooking device according to the present invention maintains power supply to the rice cooker after rice cooking is completed, and issues a command to disconnect the control device from the power source.

[Effect]

In this invention, since the control device is disconnected from the power supply when the heat retention operation is started, the control device is not energized during the heat retention operation.

〔Example〕

Figures 1 to 3 are diagrams showing one embodiment of the present invention.
The figure is a main part configuration diagram, and Figure 2 is a main part circuit diagram.

FIG. 3 is a flowchart showing the operation of the control disconnection means, and parts similar to those in the conventional device are designated by the same reference numerals. Note that FIG. 4 is also used in this embodiment.

In FIG. 1, Cal+ is a rice cooking means that supplies power to the rice cooker a1 to cook rice through a relay (c) having a normally closed contact.

(C) is a control cut-off means that outputs an output when rice cooking is completed, and a keep relay that supplies power to the control device α3 and cuts off the control device filla3 from the power supply according to the output of the control cut-off means (to).

In Fig. 2, (24A) and (24B) are the first and second coils constituting the keep relay (2), respectively;
240) is a contact, and when the first film (24A) is energized, the contact (240) comes into contact with the contact A, and the first coil (24
Even if A) is de-energized, the above contact is maintained and the second coil (2
4B) is energized, the contact (240) contacts contact BK.

(2) is an automatic return type switch connected to the first coil (24 coils) K, and is provided on the control display panel I.

(2) is the power plug connected to the AC power supply, @ is the rice cooking outlet into which the plug of the rice cooker A1 cord is inserted,
@ is the operation part consisting of a switch to set the rice cooking time, @d
A timer circuit that emits an output when the time set on the operation unit (to) is busy, (to) is an input device that transmits the output of the timer circuit ■ to the control device 0, on is the output of the control device 0 to the motor (3d), (6c) Control valve (58), lid holding device 02
and an output device that sends out data to a motor (to) for driving a shaking table for rice conditioning, and (to) is a power indicator light.

Next, the operation of this embodiment will be explained with reference to FIG.

Program ti of this flowchart, I11 control device a
3 is stored in the memory (not shown) of the microcomputer composing the computer.

Now, the source plug (A) is the power outlet (not shown)
rice is inserted into the rice storage chamber (2), the lid αυ of rice cooker a is left half open and held by the lid holding device a3, and the plug of rice cooker α is inserted into the rice cooker outlet fin. (not shown). At this time, the lid (1
Since the rice cooker α1 is not closed, the rice cooker α1 is not energized. It is assumed that the user sets the rice cooking time using the operation section (3), selects the rice cooking switch (14b), and then turns on the on switch (c). Now the 1st coil (24
A) is energized and contacts (24C) #'i contact AK, power is supplied to control device 0, and the power indicator light (to)
lights up. Then, the relay is energized, the contacts are opened, and the rice cooker α1 is disconnected from the power source. Operation section (to)
When the timer circuit (2) outputs an output based on the time set in , the signal is input to the control device α3 via the input device 1 (to), and the flag 1 is turned on. The program progresses.0 In step FAII, it is determined whether 7lag 1 is on, and if it is off, it waits for it to be turned on.0If flag 1 is on, in step (42-■), the output device is fi(Il
A signal is sequentially sent to the motor (sa), (60), adz, control valve (5e), and lid holding device α2 through l, the rice is weighed and washed as described above, and the rice is mixed with cooking water. Pour the rice into the rice cooker a1, close the lid α9, and shake the rice cooker αυ to smooth the rice.

Step! At 11, the relay @ is deenergized and the contacts are closed,
Power is supplied to the rice cooker a0 to cook rice. When rice cooking is completed in step (c), the second coil (24B) of the keep relay @ is energized in step 4, the contact <240) is switched to contact B, and the control device α3 is disconnected from the power supply. Power will no longer be turned on. but.

The relay @ is kept de-energized, the power supply to the rice cooker α1 continues, and the heat retention operation is started by pressing the step button (control disconnection means (c)). At the same time, the power indicator light (to) goes out.

〔Effect of the invention〕

As explained above, in this invention, after rice cooking is completed, the power supply to the rice cooker is maintained and a command is issued to disconnect the control device from the power supply, so that the heating operation starts, but the control device is not energized. First, it has the effect of preventing shortening of the life of the control device and reducing heat generation countermeasures.

[Brief explanation of drawings]

1 to 3 are diagrams showing an embodiment of a fully automatic rice cooking device according to the present invention, and FIG. 1 is a configuration diagram of the main parts. FIG. 2 is a circuit diagram of the main parts, FIG. 3 is a flowchart showing the operation of the control disconnection means, and FIG. 4 is an overall configuration diagram showing a conventional fully automatic rice cooking device. In the figure, (1) is the main body, (2) is the rice storage room, (31 is the rice measuring device, (5) is the # device on the water volume side, (6) is the rice washing device, a
・ is a rice cooker, α3 is a control device, g2 is a relay, @ is a control disconnection means, and (to) is a keep relay. Note that the same reference numerals in Figure 1 indicate the same parts. Figure 1

Claims (1)

[Claims] When power is supplied to the control device, the rice stored in the main unit is weighed, washed, and put into the rice cooker. Power is supplied to the rice cooker to cook the rice, and after the rice is finished cooking, it shifts to the warming operation. The fully automatic rice cooking apparatus is characterized in that the apparatus is equipped with a control disconnection means for issuing a command to maintain the power supply to the rice cooker and disconnect the control device from the power supply after the rice cooking is completed. Device.