JP4023038B2 - rice cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice cooker used for general home use or business use.
[0002]
[Prior art]
In recent rice cookers, the heat sink unit of the lid is detachable to improve care, and after using the rice cooker, the dirty heat sink unit can be removed from the lid and washed. ing.
[0003]
[Problems to be solved by the invention]
However, in the above-mentioned rice cooker, since the heat sink unit is detachable, a gap is generated between the heat sink unit and the lid, and heat escapes from between the rice cooker body and the lid through the gap to the outside of the rice cooker. Therefore, extra heating is necessary to maintain the temperature of the rice, especially during the heat retention.
[0004]
This invention solves the said subject, and suppresses the heat | fever which escapes from between a rice cooker main body and a lid | cover through between a heat sink unit and a lid | cover, and exists in maintaining the heat retention temperature of rice with little electric energy.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a pan that is detachably accommodated in a main body, a lid that is pivotally supported so as to cover an upper surface opening of the main body, and an inner side of the lid. comprising an outer lid cover which constitutes the lower surface of the lid, and a steam passage provided in the lid, and a heat radiating plate unit having the outer lower surface removably disposed radiating plate of the lid cover, wherein the cover The steam passage and the heat radiating plate unit are connected to each other by a steam plate packing, and the heat radiating plate unit forms a hollow layer between the outer cover cover and the heat radiating plate, and the outer cover cover and the A seal member is provided at the peripheral edge between the heat sink .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, even in the configuration in which the heat sink unit is detachable, the air on the heat sink unit heated by the heat escaped from the inside of the pan through the heat sink unit is convected between the lid and the main body. Because it will not escape, it will be possible to maintain the heat insulation temperature of the rice with a small amount of electricity.
[0007]
According to the second aspect of the present invention, it is possible to perform both the sealing of the pan and the radiator plate unit and the sealing of the radiator plate unit and the lower surface of the lid with a simple configuration, and the heat insulation effect can be easily improved. .
[0008]
【Example】
Example 1
A first embodiment of the present invention will be described with reference to FIGS.
[0009]
1 to 2, the main body 1 has an open top surface, a protective frame 3 serving as a storage portion for the pan 2 is disposed inside the main body 1, and an induction coil that is a heating means outside the protective frame 3 4 is provided.
[0010]
Reference numeral 5 denotes a lid that covers the upper surface opening of the main body 1, and this lid 5 is rotatably supported via a pin 8 on a hinge member 7 integrally formed on the upper portion of the upper frame 6 constituting the upper portion of the main body 1. Has been. Reference numeral 9 denotes an outer lid cover, and the outer lid cover 9 is fixed to the inside of the lid 5. A heat sink unit 10 is detachably attached to the lower surface of the outer lid cover 9, and a pot packing 11 is pressed against the flange 12 of the pot 2 when the cover 5 is closed. The pan 2 is sealed. A sealing member 13 is provided between the heat radiating plate unit 10 and the outer lid cover 9 constituting the lower surface of the lid 5 to constitute a hollow layer 14. In addition, a lid induction coil 15 which is a lid heating means supported by the outer lid cover 9 is located above the heat radiating plate unit 10. When the heat radiating plate unit 10 generates heat due to the electromagnetic action of the lid heating coil 15, it is heated from the upper surface during rice cooking so as to wrap up the entire rice, and the heating from the upper surface and the lower induction coil 4 By heating, the temperature of the rice can be kept uniform. And by forming the hollow layer 14 between the heat radiating plate unit 10 and the outer lid cover 9 by the sealing member 13, the heat radiating plate unit 10 heated by the heat escaped from the inside of the pan 2 through the heat radiating plate unit 10 is provided. The air does not escape from the space between the lid 5 and the main body 1 due to convection, so that the heat retaining temperature of the rice can be maintained with a small amount of electric power. By configuring the seal member 13 with a material such as a closed cell foam having high heat insulation, the heat insulation can be further improved and the amount of power consumption can be reduced.
[0011]
A lid sensor 16 detects the temperature of the heat radiating plate unit 10 and is provided so as to be in pressure contact with the heat radiating plate unit 10 side. Reference numeral 17 denotes a steam cylinder detachably provided in the steam passage 18 of the lid 5. A magnetic float 19 is provided at the lower part of the steam cylinder 17 so that it can be moved when the rice is cooked. The lead SW 20 is arranged at a position facing the float 19 in the lid 5. When the rice ball reaches the float 19 portion, the float 19 moves, and the lead SW 20 detects and controls the output to the induction coil 4 serving as a heating means to prevent the rice cake from being blown out.
[0012]
Further, the surface of the heat radiating plate unit 10 facing the steam passage 18 has a steam discharge hole. Further, the connection portion between the steam passage 18 of the lid 5 and the heat sink unit 10 is sealed with a steam plate packing 21 so that steam and heat from the pan 2 do not leak between the heat sink unit 10 and the outer cover cover 9. It is configured.
[0013]
In the present embodiment, a method by induction heating is shown as the heating means, but the same applies when a sheathed heater or a halogen heater is used.
[0014]
(Example 2)
Next, a second embodiment will be described with reference to FIGS.
[0015]
3 to 4, the configuration from the main body 1 to the outer lid cover 9 is the same as that of the first embodiment. And the pan packing 23 is configured to be detachably provided on the lower surface of the outer lid cover 9 so that the pan 2 is sealed by pressing against the flange 12 of the pan 2 when the lid 5 is closed. Further, the pot packing 23 constitutes a hollow layer 24 by sealing between the heat radiating plate unit 22 and the outer lid cover 9. Therefore, the air on the heat sink unit 22 warmed by the heat escaping from the inside of the pan 2 through the heat sink unit 22 by the convection does not require another seal member and is simple and inexpensive. Escape from the gap can be prevented, and the heat insulation temperature of rice can be maintained with a small amount of electric power.
[0016]
The configuration from the lid heating coil 15 and the lid sensor 16 to the steam plate packing 21 is the same as that of the first embodiment.
[0017]
( Reference Example 1 )
Next, a first reference example will be described with reference to FIGS.
[0018]
5 to 6, the configuration from the main body 1 to the outer lid cover 9 and the configuration from the lid heating coil 15 and the lid sensor 16 to the steam plate packing 21 are the same as those in the first embodiment. A heat radiating plate unit 10 is detachably attached to the lower surface of the outer lid cover 9, and a pot packing 11 is attached to the heat radiating plate unit 10 on the flange 12 of the pan 2 when the lid 5 is closed. The pan 2 is configured to be pressed and sealed. The outer lid cover 9 is provided with a seal member 25 that presses and seals the outer peripheral portion of the upper frame 6 constituting the upper portion of the main body 1 when the lid 5 is closed. The seal member 25 prevents the warmed air between the lid 5 and the main body 1 from escaping from the gap between the lid 5 and the main body 1 due to convection, so that the heat insulation effect is improved and the amount of electric power during cooking and warming is increased. Less.
[0019]
Although the seal member 25 is provided on the outer lid cover 9 in this reference example, the effect is the same if it is provided on the outer frame 5 or the upper frame 6 constituting the upper part of the main body 1.
[0020]
【The invention's effect】
As described above, according to the first aspect of the present invention, by arranging the sealing member that forms the hollow layer between the lid lower surface and the heat radiating plate unit, the structure in which the heat radiating plate unit is detachable, The air on the heat sink unit heated by the heat escaped from the pan through the heat sink unit will not escape from the space between the lid and the main body due to convection, so the heat insulation temperature of the rice can be maintained with a small amount of electricity. it can.
[0021]
According to the invention described in claim 2, in particular, since the sealing member is integrally formed with the pot packing, the heat insulation effect is improved with a simple configuration, and the heat retaining temperature of the rice is maintained with a small amount of electric power. be able to.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the rice cooker in the front-rear direction of the first embodiment of the present invention. FIG. 2 is a cross-sectional view of essential parts of the rice cooker. FIG. 3 is a cross-sectional view of the rice cooker of the second embodiment of the present invention. Cross-sectional view in the front-rear direction [FIG. 4] Cross-sectional view of the main part of the rice cooker [FIG. 5] Cross-sectional view in the front-rear direction of the rice cooker of the first reference example of the present invention [FIG. Sectional view [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Pan 5 Lid 10, 22 Heat sink unit 13 Seal member 14 Hollow layer

Claims (2)

A pan that is detachably stored in the body, a lid that is pivotally supported so as to cover the upper surface opening of the main body, and an outer lid cover that is fixed to the inside of the lid and constitutes the lower surface of the lid And a steam passage provided in the lid, and a radiator plate unit detachably disposed on the lower surface of the outer lid cover , and having a radiator plate, and a connection portion between the steam passage of the lid and the radiator plate unit is sealed with steam plate packing, the heat radiating plate unit, to form a hollow layer between the outer lid cover and the heat dissipation plate, the sealing member on the periphery between the outer lid cover and the heat dissipation plate A rice cooker.   The rice cooker according to claim 1, wherein the sealing member is formed integrally with a pot packing for sealing the pot and the outer periphery of the radiator plate unit when the lid is closed.

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