JPH01110310A - rice cooker - Google Patents

Abstract

PURPOSE: To prevent such a risk that a user gets burned, and protect a control circuit part form heat by a method wherein a steam outlet provided in a lid is connected to a gas exhaust path and the control circuit part of a heating element is arranged in an air supply path. CONSTITUTION: A rice cooking pot 4 containing rice and water is placed on a heating element 7 in a pot housing chamber 5 of a device main body 1 and a lid 16 is closed. When rice cooking is started by a switch operating part 27, power is supplied to the heating element 7 via a control circuit part 28 and the cooking pot 4 is heated. Therefore, water temperature in the pot 4 rises and steam is generated. When the temperature of a heat radiating plate 24 rises up to a specified temperature or higher by the steam, a temperature sensor 25 is activated and a fan 12 is put into operation by a signal from the temperature sensor 25. The fan 12 takes in outside air from a air intake 13 provided on the lower front of the device main body 1 via an air filter 14. The outside air sucked passes through a space 29 above the control circuit part 28, absorbs heat from the heating element 7 and flows into an exhaust path 19 in the lid 16 from an exhaust opening 15. On the other hand, the steam generated during rice cooking flows into the exhaust path 19 from a steam outlet 26 and is mixed with the outside air that flows along the exhaust path 19 and turned to low temperature steam and discharged forward from a blow port 21.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooking device used in general households.

BACKGROUND ART Conventional 2 This type of rice cooking device had a configuration as shown in Figure 5. That is, a rice cooking pot 42 is housed in the device main body 41, and a lid 43 is attached to the upper part of the device main body 41 by a support shaft 44 so as to be openable and closable. This lid body 43 has
A steam exhaust port 45 is provided to discharge steam generated from the rice cooker 42 to the outside of the device main body 41. In this configuration, when rice and water are placed in the rice cooker 42 and heated by the heating element 46 to cook rice, the water inside the rice cooker 42 boils and steam is generated. This steam is discharged from the discharge port 45.

Problems to be Solved by the Invention However, with this configuration, the emitted steam is at a high temperature, so if the user accidentally comes into contact with the steam or air, there is a risk of burns, etc., resulting in safety concerns. There was a problem about. Furthermore, the steam is blown upwards, making it a rice cooker! - When cooking rice, it is difficult to place other items above it.
This requires a large space, and when installed near a wall, steam condenses on the wall and damages the wall, making it difficult to use. In addition, since the heating element becomes extremely hot during rice cooking, there was a problem in that a sufficient heat shielding structure was required in order to place electronic components that are sensitive to high temperatures, that is, the control circuit section, inside the main body of the device. .

Therefore, two objects of the present invention are to provide a rice cooking device that can solve the above problems.

Means for Solving the Problems In order to solve the above-mentioned problems, the rice cooking device of the present invention has a lid body attached via a support shaft to the top end of the device main body in which a rice cooking pot storage chamber with an open top end is formed. It is attached so that it can be opened and closed, and a heating element is arranged at the inner bottom of the rice cooker storage chamber, and one end is opened to the front of the device main body and the other end is opened to the front of the device main body at a position below the rice cooker storage chamber of the device main body. A ventilation passage opened at the top of the air passage is provided, and a ventilation means is provided in the middle of this ventilation passage,
The lid is provided with an exhaust passage whose one end is opened opposite to the opening at the other end of the ventilation passage and whose other end is opened in the front of the lid, and a steam exhaust port provided in the lid is provided. A control circuit unit connected to the exhaust passage and controlling the heating element is disposed within the ventilation passage.

According to the above structure, steam generated during rice cooking enters the exhaust passage through the steam outlet, where it is mixed with air and discharged to the outside as low-temperature, moist air. Therefore, even if the user accidentally touches the air outlet, there is no danger of burns or the like. Further, the control circuit section disposed within the ventilation passage is protected from heat from the heating element by the air flowing within the ventilation passage.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 4.

1 is a rice cooking device 3 inserted into a storage shelf 2 so that it can be freely drawn out.
The device body has a rice cooking pot 4 with an open top end inside.
A storage chamber (hereinafter referred to as the pot storage chamber) 5 is formed by a partition wall 6, and at the inner bottom of the pot storage chamber 5, a heating element 7 and a pot sensor 8 for detecting the temperature of the bottom of the rice cooking pot 4 are installed. One end is opened below the front panel portion 1b of the device main body 1 between the partition wall 6 forming the pot storage chamber 5 and the outer wall portion 1a of the device main body 1. A ventilation passage 9 whose other end is open at the rear upper surface is formed, and a blower (air blowing means) 12 consisting of a fan IO and a motor 11 is disposed in the middle of this ventilation passage 9. An air filter 14 is attached to one end opening of 9, that is, the intake port 13, and the other end opening, that is, the exhaust port 15 is attached to the upper frame portion 1 of the apparatus main body 1.
cl is formed. A lid 16 for opening and closing the upper end opening of the pot storage chamber 5 is supported on the rear upper surface of the upper frame portion 1a of the apparatus main body 1 via a support shaft 17. A horizontal partition wall 18 is disposed inside the lid 16, and a space above the partition wall 18 is an exhaust passage 19. One end of this exhaust passage 19 is connected to the exhaust port 15 of the ventilation passage 19.
The suction port 20 is opened at a position opposite to the suction port 20, and the other end is opened as a Suita port 21 on the front surface of the lid body 16. Note that a part of the earthen wall portion of the lid body 16 is made into a cover 22 that can be removed. Further, the lower space of the lid 16 is filled with a heat insulating material 23, and the bottom wall is provided with a heat sink 24 made of a material with high thermal conductivity (for example, an aluminum plate). A temperature detector (temperature detection means) 25 for detecting the steam temperature in the pot storage chamber 5 is arranged on the surface of the heat insulating material.
The contact is closed when the temperature exceeds a predetermined temperature, and the contact is opened when the temperature becomes lower than a predetermined temperature, and is electrically connected to the motor 11 of the blower 12. That is, when the contacts close, the motor 11 is activated and the fan 10 is rotated. Furthermore, a steam outlet 26 is formed in the lid 16 to take out the steam generated in the pot storage chamber 5, and this steam outlet 26 is connected to the exhaust passage 19. Reference numeral 27 denotes a switch operating section installed on the front panel section 1b of the main body 1 of the apparatus, and 28 indicates a control circuit section that controls power supply to the heating element 7 based on a signal from the switch operating section 27. This control circuit section 27 is located inside the ventilation passage 9 and in addition to the heating element 7.
The arrangement is such that a space 29 for ventilation is created between the two. Note that the pot sensor 8 is also electrically connected to the control circuit section 27.

Next, the operation of the rice cooking device will be explained.

First, the rice cooking pot 4 containing rice and water is placed on the soil of the heating element 7 in the pot storage chamber 5 of the main body 1 of the apparatus, and after the lid is closed, rice cooking is started using the switch operation part 27. When the switch is turned on, electricity is applied to the heating element 7 via the control circuit section 28, heating the first heating element 7, raising the water temperature inside the rice cooker 4, and generating steam. When the temperature of the heat sink 24 rises due to the steam and reaches a predetermined temperature or higher, the temperature detector 25 is activated, and the blower 12 is activated in response to the signal. The blower 12 sucks outside air through an air filter 14 from an intake port 13 provided at the lower front of the device main body l. The sucked air passes through the space 29 above the control circuit section 28 and absorbs heat from the heating element 7.
It enters the exhaust passage 19 of the lid body 16 from the exhaust port 15. - way,
Steam generated during rice cooking enters the exhaust passage 19 from the steam outlet 26, mixes with the outside air flowing through the exhaust passage 19, becomes low-temperature steam, and is discharged forward from the outlet 21.

The emitted steam is at a low temperature, so there is no risk of getting burned if you come into contact with it. Additionally, as rice cooking progresses and the water in the rice cooker 4 evaporates, the internal temperature of the rice cooker 4 rises, the pot sensor 8 detects this temperature, and when the temperature reaches a predetermined value, power supply to the heating element 7 is stopped. Then, cooking is completed. Also,
When the steam inside the rice cooker 4 runs out, the temperature of the heat sink 24 gradually decreases, and when the temperature drops below a predetermined temperature, the contact of the temperature detector 25 opens, and the blower 12 is stopped by this signal. Note that during steam generation, the lid 1
6 is opened, the temperature of the heat sink 24 decreases, and the blower 12 is also stopped.

Effects of the Invention According to the above configuration of the present invention, since the steam exhaust port is connected to the exhaust passage provided in the lid, the steam generated during rice cooking is mixed with the air flowing in the exhaust passage.

It can be dispersed and discharged outside the rice cooker as low-temperature, humid air, so there is no danger of burns or the like even if the user accidentally touches the air outlet area. In addition, by discharging steam to the front of the rice cooker, the space above the rice cooker can be used effectively, and by exhausting the steam as dispersed moist air, condensation on walls near the rice cooker can be prevented. It can be prevented. Furthermore, since the control circuit section is disposed within the ventilation passage, the heat from one heating element is absorbed by the air flowing within the ventilation passage, and therefore the control circuit section is protected from heat.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 4 show a rice cooking device according to an embodiment of the present invention, in which FIG. 1 is an overall sectional view, FIG. 2 is an enlarged sectional view of a ventilation passage, FIG. 3 is an enlarged sectional view of the exhaust passage, FIG. 4 is an overall perspective view, and FIG. 5 is an overall sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Apparatus body, 3... Rice cooking device, 4... Rice cooking pot, 5... Rice cooking pot storage chamber, 7... Heating element, 9... Ventilation passage, 12... Air blower, 13...Intake port, 1
5...Exhaust port, 16...Lid body. 17... Support shaft, 19... Exhaust passage, 20... Suction port, 21... Air outlet, 25... Temperature detector, 2
6... Steam outlet, 28... Control circuit section, 29...
·space.

Claims (1)

[Claims] 1. A lid body is attached via a support shaft to the upper end of the main body of the device in which a rice cooker storage chamber with an open top end is formed so as to be openable and closable, and a heating element is arranged at the inner bottom of the rice cooker storage chamber. A ventilation passage having one end opened at the front of the apparatus main body and the other end opened at the upper part of the apparatus main body is provided at a position below the rice cooker storage chamber of the apparatus main body, and a ventilation means is provided in the middle of this ventilation passage. and the lid is provided with an exhaust passage whose one end is opened opposite to the other end opening of the ventilation passage and whose other end is opened in the front face of the lid, and the lid has a steam exhaust passage provided in the lid. A rice cooking device, wherein an outlet is connected to the exhaust passage, and a control circuit unit for controlling the heating element is disposed within the ventilation passage.