JP2001353067A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress that dust enters into a rice cooker from an intake vent in the rice cooker which drains excess water content for preventing condensation during rice is cooked and temperature is kept and being sticky of cooked rice from being generated. SOLUTION: By arranging an umbrella part 19 being larger than the diameter of a steam hole 16 and providing the intake vent 20 at a position facing to the underside of the umbrella part 19 of a steam cylinder 15, the open air passes through the intake vent 20 from a gap between a lid 5 and the umbrella part 19 of a steam cylinder 15 and furthermore, passes through a ventilation passage 34 provided in a gap between a heat dissipation plate unit 12 and an outer lid cover 9 to be sucked into a fan 21 and wind sent from the fan 21 is sent into a pot 2 from a blast hole 29 of the heat dissipation plate unit 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker used for general household or business use.

[0002]

2. Description of the Related Art Conventionally, a rice cooker provided with a blower to discharge excess moisture has been devised in order to prevent dew condensation and stickiness of rice during cooking and warming.

[0003]

However, in the above-mentioned rice cooker, the air intake is required as the excess water is discharged by the blower, and the intake port is provided. However, dust easily enters through the intake port. There were challenges.

The present invention has been made to solve the above-mentioned problems, and has a clean structure in which dust hardly enters into a pot to reduce excess moisture of rice to reduce stickiness of rice and to quickly lower the temperature to a temperature for keeping rice. The purpose is to reduce deterioration.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pot removably housed in a main body, heating means for heating the pan, and a top opening of the main body. An umbrella having a lid that is openably and closably supported, wherein the lid is provided with a steam port for discharging steam during cooking of rice, an intake port for sucking outside air, and a blower, and the steam port has a top surface larger than a steam port diameter. A steam cylinder having a section is disposed, and the intake port is disposed below an umbrella section of the steam cylinder.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is characterized in that a pan removably housed in a main body, a heating means for heating the pan, and a pivotally supported opening and closing cover for an upper opening of the main body. A steam cylinder having a lid, wherein the lid is provided with a steam port for discharging steam during cooking rice, an air inlet for sucking outside air, and a blower, and the steam port has an umbrella section whose top surface is larger than the steam diameter. By disposing the intake port under the umbrella portion of the steam cylinder, the intake port is hidden under the umbrella section of the steam cylinder, so that it is difficult for dust to directly enter, and the intake port is visible from the outside. Since it has no cleanliness and a clean appearance, it is possible to reduce excess moisture, reduce stickiness of rice, and quickly lower the temperature to the heat retention temperature to reduce deterioration of rice.

According to a second aspect of the present invention, an intake hole is provided in an umbrella portion of a steam cylinder, and the positions of the intake hole and the intake port of the umbrella portion of the steam cylinder are shifted, so that the air intake performance is reduced in a configuration in which dust does not directly enter. Can be improved.

According to the third aspect of the present invention, by providing an inclined surface in the head of the steam cylinder and providing an intake hole in the inclined surface, the intake performance can be improved with a configuration in which dust hardly enters.

[0009]

(Embodiment 1) A first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1 and FIG. 2, a main body 1 has an opening at an upper surface, and a protective frame 3 which is a storage portion of a pot 2 is disposed inside the main body 1, and a heating means is provided outside the protective frame 3. An induction coil 4 is provided.

Reference numeral 5 denotes a lid for covering the upper opening of the main body 1. The lid 5 is rotatably connected to a hinge member 7 integrally formed on an upper part of an upper frame 6 constituting the upper part of the main body 1 via a pin 8. Supported. 9 is an outer lid cover, and the outer lid cover 9 is a lid 5
Is fixed inside. A radiator plate 12 having a radiator plate 10 as a heating element and a pot packing 11 is detachably attached to the outer cover 9.
A lid induction coil 13 serving as a lid heating means supported by the outer lid cover 9 is located above the zero. The heat radiation plate 10 generates heat by the electromagnetic action of the lid induction coil 13.

When the lid 5 is closed, the pan packing 11 is pressed against the flange 14 of the pan 2 to hermetically close the pan 2.

Reference numeral 15 denotes a steam cylinder which is detachably provided in a steam port 16 of the lid 5, and a magnetic float 17 is provided below the steam cylinder 15 so as to be moved by the rice cooker. The lead SW 18 is disposed at a position in the cover 5 facing the float 17. Sleeping Float 17
When it reaches the part, the float 17 moves and the lead SW1
8 detects and controls the output to the induction coil 4 serving as a heating means, thereby preventing spillage from leaking outside. Further, it is configured to move when the lid 5 is opened and closed, and also serves as detection of opening and closing of the lid 5.

The steam cylinder 15 has an umbrella portion 19 having a diameter larger than that of the steam port 16.
An intake port 20 is provided at a position facing the lower surface of the umbrella section 19 of the fifth embodiment. The entrance surface of the intake port 20 is one step higher than the other surfaces, so that even if water or rice cake flows under the steam cylinder 15, it is difficult to flow into the intake port 20.

Further, a heat sink 10 on the lower surface of the outer lid cover 9 is provided.
On the side, a fan part 22 of a blower 21 is rotatably supported between a fan case 23 and an outer cover 9. By providing the fan unit 22 on the lower surface of the outer cover 9, the fan unit 22 cannot be seen when the lid 5 is closed during use, and the fan unit 22 can be cleaned by opening the lid 5. Blower 2
The first motor unit 24 is provided inside the cover 5 of the outer lid cover 9. The motor unit 24 is provided with a motor magnet 25 and the fan unit 22 is provided with a fan magnet 26. The fan unit 22 can be rotated by the attraction force of the fan magnet 26 and the fan magnet 26.

In the radiator plate unit 12, an intake valve 27 is provided with a spring 28 and an air outlet 29 of the radiator plate unit is connected to the intake valve packing 3.
It is biased in the closing direction with 0. A valve lever 31 is provided on the outer lid cover 9 above the intake valve 27 with a lever packing 32 to cover the lid 5.
It is installed to seal with the inside. Intake valve 2
7 is opened and closed by pushing down the valve lever 31 with the cam 33.

A gap is provided between the heat radiating plate unit 12 and the outer lid cover 9 constituting the lower part of the lid 5 to provide a ventilation passage 34.
Is composed. The outside air passes through the air inlet 20 from the gap between the lid 5 and the umbrella portion 19 of the steam cylinder 15, and further passes through the heat sink unit 12.
Ventilation passage 34 provided in the gap between the outer cover 9 and
The air is blown into the blower 21 and the air sent from the blower 21 is sent into the pan 2 from the blower opening 29 of the radiator plate unit 12.

The connection between the steam cylinder 15 and the heat radiating plate 10 is sealed by a steam plate packing 35 so that the exhaust gas in the pan 2 does not leak between the heat radiating plate unit 12 and the outer lid cover. The radiator plate 10 is provided with a connecting hole 36 connected to the steam cylinder 15 to form a steam passage 37. The steam cylinder 15 is provided with an exhaust hole 38 for discharging steam. Further, a ventilation port packing 39 is provided between the heat radiating plate 10 and the fan case 28 to prevent the ventilation from the blower 26 from leaking.

In the rice cooker constructed as described above, the outside air passes through the air inlet 20 from the gap between the lid 5 and the umbrella portion 19 of the steam tube 15 by operating the blower 21 for a fixed time during cooking or keeping the temperature warm. Then, the heat is sent into the pan 2 through a ventilation passage 34 provided in a gap between the heat sink unit 12 and the outer cover 9. The outside air is sent into the pan 2 and the air containing excess moisture in the pan 2 is discharged from the connecting hole 36 of the heat sink 10 through the steam tube 15 to the outside.
Excess water vapor in the inside is discharged to the outside to prevent dew condensation on the side surface of the pot 2 and the radiator plate unit 12 and to prevent sticky rice. In other words, when rice is put in a wooden diaper, excess moisture has the same effect as that of the rice being sucked by the tree to become non-sticky rice. Further, by discharging the air in the pot 2 and introducing the outside air, the smell of the rice generated due to the deterioration due to the heat retention can also be discharged to the outside, so that the rice for the heat retention can be improved in terms of the smell. Further, the outside air lower than the temperature in the pan 2 flows into the pan 2, so that the temperature of the rice in the pan 2 can be quickly lowered to a predetermined temperature. The longer the holding time at high temperature, the greater the deterioration and discoloration due to oxidation and the like, and thus the deterioration and discoloration can be reduced by quickly lowering the temperature to a predetermined temperature.

The intake port 20 is connected to the umbrella section 1 of the steam cylinder 15.
9, dust from the outside is blocked by the umbrella portion 19 of the steam cylinder 15 and does not directly enter the intake port 20, so that it is clean.

In this embodiment, the induction heating method is used as the heating means. However, the same applies when a sheath heater, a halogen heater, or the like is used.

(Embodiment 2) Next, a second embodiment will be described with reference to FIGS.

3 and 4, the umbrella portion 1 of the steam cylinder 15 is shown.
9, an intake hole 40 is provided at a position shifted from the intake port 20 of the lid 5. Even if dust enters from the intake hole 40 of the steam cylinder 15, since the position of the intake hole 40 and the position of the intake port 20 are shifted, dust accumulates on the lower surface of the intake hole 40 of the lid 5,
The configuration in which dust does not directly enter the intake port 20 improves intake performance.

(Embodiment 3) Next, a third embodiment will be described with reference to FIG.

FIG. 5 is a perspective view of the steam cylinder 15. An inclined surface 41 is formed in the umbrella portion 19 of the steam cylinder 15,
An intake hole 42 is provided in the inclined surface 41. According to this configuration, the intake hole 42 is provided so as to open toward the side surface of the inclined surface 41, and the intake hole 42 does not open toward the upper surface. Therefore, the performance of discharging excess water in the pot 2 can be improved. .

[0026]

As described above, according to the first to third aspects of the present invention, since the intake port is hidden under the umbrella portion of the steam cylinder, it is difficult for dust to directly enter, and the intake port can be seen from the outside. Since it has no cleanliness and a clean appearance, it is possible to reduce excess moisture, reduce stickiness of rice, and quickly lower the temperature to the heat retention temperature to reduce deterioration of rice.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice cooker according to a first embodiment of the present invention.

FIG. 2 is a fragmentary sectional view of the same rice cooker.

FIG. 3 is a fragmentary sectional view of a rice cooker according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a steam cylinder of the rice cooker.

FIG. 5 is a perspective view of a steam cylinder of a rice cooker according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Pot 5 Lid 15 Steam cylinder 16 Steam port 19 Umbrella part 20 Intake port 21 Blower

Claims (3)

[Claims] 1. A pan removably housed in a main body, a heating means for heating the pan, and a lid which covers an upper opening of the main body and is pivotally supported so as to be openable and closable. A steam port for discharging steam at the time, an intake port for inhaling outside air, and a blower are provided, and a steam cylinder having an umbrella section having a top surface larger than the steam aperture is provided in the steam port, and an umbrella section of the steam cylinder is provided. A rice cooker with the above-mentioned intake port arranged below. 2. The rice cooker according to claim 1, wherein an intake hole is provided in an umbrella portion of the steam cylinder, and a position of the intake hole and an intake port of the umbrella portion of the steam cylinder are shifted. 3. The rice cooker according to claim 1, wherein an inclined surface is provided in an umbrella portion of the steam cylinder, and an intake hole is provided in the inclined surface.