JPH0724623B2 - Fully automatic rice cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fully-automatic rice cooker used in general households.

2. Description of the Related Art Conventional automatic rice cookers that automatically perform steps from washing rice to adjusting water and cooking rice do not have a leftover rice detection unit that detects the presence or absence of leftover rice.

Problems to be Solved by the Invention In the above-described conventional configuration, when the user mistakenly instructs the start of rice cooking with the leftover rice, there is a problem that rice and water overflow from the pan. .

An object of the present invention is to provide a fully automatic rice cooker that solves such problems.

Means for Solving the Problems In order to solve the above problems, the fully-automatic rice cooker of the present invention removes rice bran portions that can store rice and discharge each by a predetermined amount, and rice bran supplied from the rice pot parts. And a rice transfer section for transferring the polished rice to a pot, a water supply section for supplying water necessary for cooking rice, and a water level detection section for detecting the water level of the water supply section and determining an appropriate amount of water. , A rice cooker that cooks rice with rice and water supplied from the rice transporter and the water supplier, a pan detector that detects the presence or absence of the pan by a weight sensor, and a control that performs a series of sequence control and rice cooker control And a leftover food detection unit for detecting the presence or absence of leftover food by a signal from the pan detection unit and a control unit based on the weight detection of the pan detection unit.

Operation Since the present invention can detect the presence or absence of leftover food by adopting the above-mentioned configuration, even if the user mistakenly instructs to start cooking rice with leftover food, it is possible to detect rice with rice as in the past. There is no risk of rice overflowing the pot.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a flowchart showing a leftover food detection operation according to an embodiment of the present invention.

In FIG. 1, when a rice-cooking start signal is input in step a, the rice-cooking sequence starts, and the presence or absence of a pan is first detected. If there is a pan, and the leftover food is added, and it is heavier than when using the single pan, it is determined that there is leftover food in step b, an error is displayed and an alarm is issued in step c, and the subsequent operations are suspended until the pan is removed. To do. Also step b
If it is the weight of the pot alone, it is determined that there is no leftover food, and normal operation is started in step d and ended after a predetermined operation.

FIG. 2 is a block diagram showing the overall configuration of a fully automatic rice cooker according to an embodiment of the present invention.

In this FIG. 2, 1 is a rice grain part which stores rice and can discharge a predetermined amount, 2 is a rice polishing part which removes the bran content of the rice supplied from the rice grain part 1, 3 is the polished rice The rice transfer section 4 for transferring to the pan, the water supply section 4 for supplying water necessary for cooking rice, and the reference numeral 5 for the water level detection section for detecting the water level of the water supply section 4 and determining the proper amount of water, which are, for example, the water supply section 4 It is conceivable that a water tank is formed in the water tank, a water level detecting element such as an electrode is arranged inside, and the water level in the water tank is detected by a change in capacitance between the water level detecting elements. 6 is a rice cooker that cooks rice with rice and water supplied from the rice transfer unit 3 and the water supply unit 4, 7 is a control unit that performs a series of sequence control and rice cooker control, and 8 is a weight sensor that detects the presence or absence of the pot. In the pan detecting unit, for example, a weight sensor using a non-gauge may be arranged at the bottom of the rice cooking unit 6, and the presence or absence of the pan may be determined by the weight change of the pan in the rice cooking unit 6. Reference numeral 9 denotes a leftover food detection unit for detecting the presence or absence of leftover food based on signals from the pan detection unit 8 and the control unit 7.

FIG. 3 shows a detailed embodiment of the rice grain part 1, the rice polishing part 2 and the rice transfer part 3.

The rice box part 1 is composed of a rice box part 1a and a rice discharging part 1b which measures and discharges a predetermined amount of rice. The polishing part 2 is a polishing part brush 10 with flocked outer periphery, and this polishing part brush
A polishing motor 11 that drives 10, a polishing body 12 that covers the outer periphery of the polishing brush 10 and has a number of small holes that prevent rice from flowing out, and a polishing body 12 that is located below the rice discharging unit 1b Direction rice opening 13, rice discharge hole 14, air supply hole 15, exhaust hole
It is composed of a rice polishing container 17 provided with 16 and a bran container 18 for collecting the bran fraction discharged from the exhaust hole 16.

The rice transfer unit 3 includes a transfer fan 19, a suction pipe 20 that connects the bran container 18 and the intake side of the transfer fan 19, and a transfer fan.
An exhaust pipe 21 provided on the exhaust side of 19, an ejector 22 having a structure for pneumatically sending the rice discharged from the rice discharge hole 14 of the polishing rice container 17, and a transfer for transferring the rice to a pan by the action of this ejector 22 It is composed of a pipe 23.

The operation of the above structure will be described below with reference to FIGS. 2 and 3. First, when the user decides and inputs the amount of cooked rice, the control unit 7 outputs a control signal to the rice pot unit 1 so that the rice discharging unit 1b of the rice pot 1a weighs a predetermined amount of rice and the rice polishing unit. Supply this rice to 2. Next, rice polishing department 2
The rice-polishing motor 11 is driven to rotate the rice-polishing brush 10 to remove the bran particles adhering to the surface of the rice with the polishing body 12. At the same time, the transfer fan 19 of the rice transfer section 3 is driven to suck air from the air supply hole 15 of the polishing rice container 17 and exhaust the air from the exhaust hole 16.

The bran removed from the rice passes through the exhaust hole 16 and the bran container
Recovered to 18. The rice which has been polished is sent from the rice discharge hole 14 to the ejector 22, and is sent to the rice cooking unit 6 via the transfer pipe 23 by the air blow supplied from the transfer fan 19 via the exhaust pipe 21.

If the lower part of the bran container 18 shown in FIG. 3 is made detachable, the post-treatment of the bran becomes easy.

Next, a method for detecting leftover food in the embodiment of the present invention will be described.

Pan detection unit 8 that detects the presence or absence of the pan with a weight sensor
Control unit 7 based on the signal from the pan and the weight detection of the pan detection unit 8
The presence of leftover food is determined by the leftover food detection unit 9 based on the signal from. Specifically, the value of the weight sensor of the pan alone is stored in the microcomputer incorporated in the control unit 7 as the initial value, and the value detected by the weight sensor at the timing of detecting the presence or absence of the pan is relative to the initial value. It is to judge whether there is leftover food or not.

In other words, whether there is a pan is judged by weight, if there is no pan, wait until the pan is inserted, and if there is a pan and the weight is heavier than when the pan is alone, there is leftover food And notification.

Effects of the Invention According to the present invention, as is clear from the description of the above embodiments,
It is equipped with a pan detection unit that detects the presence or absence of a pan with a weight sensor and a leftover food detection unit that detects the presence of leftover food by a signal from a control unit that performs a series of sequence control and rice cooking control, so the user mistakenly detects the leftover food. Even if the start of rice cooking is instructed in a certain state, the rice and water will not overflow from the pot as in the past, and as a result, usability and reliability will be improved.

[Brief description of drawings]

FIG. 1 is a flow chart showing a leftover rice detecting operation according to an embodiment of the present invention, FIG. 2 is a block diagram showing an overall configuration of a fully automatic rice cooker according to an embodiment of the present invention, and FIG.
It is a block diagram which showed the detailed Example of a rice polishing part and a rice transfer part. 1 ... rice box, 2 ... rice polishing section, 3 ... rice transfer section, 4 ...
… Water supply part, 5 …… Water level detection part, 6 …… Rice cooking part, 7 …… Control part, 8 …… Pan detection part, 9 …… Leftover food detection part.

Claims (1)

[Claims] 1. A rice box part capable of storing and discharging a predetermined amount of rice, a polishing part for removing bran content of the rice supplied from the rice box part, and a rice transfer for transferring the polished rice to a pot. Section, a water supply section that supplies water necessary for cooking rice, a water level detection section that detects the water level of the water supply section and determines an appropriate amount of water, and rice and water supplied from the rice transfer section and the water supply section. A rice cooking unit for cooking rice, a pan detecting unit for detecting the presence or absence of the pan by a weight sensor, a control unit for performing a series of sequence control and rice cooking control, and a control unit based on the weight detection of the pan detecting unit and the pan detecting unit. Fully automatic rice cooker equipped with a leftover food detection unit that detects the presence of leftover food based on a signal from.