JP2578801Y2 - Electric rice-cooker - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric kettle such as a rice cooker, and more particularly, to a method in which the temperature of the inner lid is higher than the temperature of the rice when the rice is kept warm, so that water droplets adhering to the inner lid when keeping the temperature warm. The present invention relates to an electric kettle capable of preventing rice from sticking due to the problem.

[0002]

2. Description of the Related Art Conventionally, an electric kettle of this type stores rice and water in an inner kettle, closes an upper opening of the inner kettle with an inner lid, and then heats the inner kettle with a heating means such as an electric heater. It heats and cooks rice. Then, when the rice cooking operation is completed, the operation shifts to a warming operation for maintaining the rice in the inner pot at a predetermined temperature. During the warming operation, the temperature of the inner lid is raised by keeping the temperature of the inner lid higher than the warming temperature of the rice. The rice is prevented from sticking due to water droplets attached to the lid.

[0003]

In order to maintain the inner lid at a temperature higher than the temperature at which rice is kept warm, another electric heater is provided on the upper part of the inner lid to heat the inner lid. ing. Therefore, two different heaters must be provided, which increases the number of parts and
There is a problem in that the electrical connection to each heater is complicated, causing an increase in cost and a cause of failure.

On the other hand, Japanese Patent Application Laid-Open No. 56-158618 discloses
Has a lid heating element on the outer peripheral body side of the pan opening
The plate is provided in a state of being elastically biased upward and covers the pan opening
The inner lid is heated by bringing the heat sink into contact with the inner lid.
There is disclosed a configuration for preventing dew condensation.

However, in the above configuration, the heat radiating plate and the inner lid
To maintain good contact, a spring that elastically biases the heat sink
It is necessary to provide the heat sink and the protection frame separately.
The structure cannot be obtained. For this reason, the heating element for the lid is the inner lid
Works only to heat the pan and heats the pot
Must be provided with a heating means separate from the lid heating element.
Therefore, the pot and inner lid are heated simultaneously by the same heating means.
You cannot do it.

[0006] The present invention is intended to solve the above problems, and it is possible to simultaneously heat the inner pot and heat the inner lid with a small number of parts and without complicating the electrical connection. It aims to provide an electric kettle.

[0007]

SUMMARY OF THE INVENTION The present invention provides an inner pot and an inner pot.
Close the upper opening of the outer kettle and the inner kettle for accommodating the kettle
An electric kettle having an inner lid and
Formed at the upper end of the large diameter portion and integrally formed at the upper end of the large diameter portion
Formed so that the outer peripheral portion of the inner lid is in contact with the inner lid.
A flange-shaped contact portion, and the outer periphery of the large-diameter portion, and
Annular heating means provided in contact with the lower part of the contact part
And between the side surface of the inner pot and the large diameter portion of the outer pot.
And a gap portion formed .

[0008]

With the above construction, the large diameter portion is connected to the inner pot by the gap provided between the large diameter portion and the inner pot, as compared with the other portion which is in contact with the inner pot and loses heat to the inner pot. By not being deprived of heat, and being heated by the heating means, the large-diameter portion is kept at a higher temperature than the inner pot. Therefore, heat from the large-diameter portion is transmitted to the inner lid via the contact portion, and the inner lid is maintained at a temperature higher than the temperature at which the rice is kept.As a result, the adhesion of water droplets to the inner lid is prevented. You. Also, the same heating means
The rice in the inner pot is kept warm by heating the inner pot at the same time
Is done.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. Numeral 1 is a substantially bottomed cylindrical outer pot made of a material having excellent heat conductivity. The flange 3 is formed by bending. 4 is outer pot 1
The inner pot has a bottomed cylindrical shape and is formed of a material having excellent thermal conductivity like the outer pot 1. The inner pot 4 has a cylindrical contact portion 5 formed below the large-diameter portion 2 during storage.
At this time, a substantially annular gap portion 6 is formed between the large-diameter portion 2 of the outer hook 1 and the upper portion of the inner hook 4.

Reference numeral 7 denotes an annular electric heater serving as a heating means. Reference numeral 9 denotes a lid, which is formed by fitting an inner lid 12 made of a material having excellent heat conductivity into a packing 11 provided substantially at the center of the outer lid 10. The inner lid 12 is provided so as to close the upper opening 13 of the inner hook 4, and the curl portion 14 formed on the outer periphery thereof comes into contact with the lower portion of the flange portion 3 while being pressed against the lower portion. . Reference numeral 15 denotes a packing that seals between the inner hook 4 and the inner lid 12 when the inner lid 12 is closed.

The electric kettle having the above-described configuration performs a predetermined rice cooking and warming operation by turning off the heater 7 while detecting the temperature in the inner kettle 4 by temperature detecting means (not shown). When the rice is kept warm, that is, when the heater 7 is energized, the heat from the heater 7 is transmitted to the outer pot 1 via the mounting piece 8. At this time, the outer pot 1 and the inner pot 4
Since the gap 6 is formed between the inner kettle 4 and the inner kettle 4, the heat of the outer kettle 1 is not taken away by the inner kettle 4 and the periphery of the large diameter portion 2 of the outer kettle 1 can be maintained at a higher temperature than the inner kettle 4. it can. on the other hand,
The inner lid 12 that abuts on the upper part of the flange portion 3 in a pressed state is a large-diameter portion 2.
Heat is directly conducted, and is maintained at a temperature higher than the temperature of the inner pot 4, that is, the temperature at which the rice is kept warm. Therefore, it is possible to prevent water droplets from dropping on the rice and sticking the rice without moisture evaporating from the rice being attached to the inner lid 12. The inner pot 4 is heated simultaneously by the same heater 7.
As a result, the rice in the inner pot 4 is kept warm.

As described above, according to the above embodiment, the outer hook 1
Large-diameter part 2 integrally formed on the upper part of the upper part, and the upper end of the large-diameter part 2
And the outer periphery of the inner lid 12 contacts
3 which is a flange-shaped contact portion formed as described above, and large-diameter portion 2
And is provided in contact with the lower portion of the flange 3
Heater 7 serving as an annular heating means, side surface of inner pot 4 and outer pot
1 and the gap 6 formed between the large diameter portion 2
It can prevent stickiness of rice when keeping warm
In addition, the same heater 7 heats the inner pot 4 and the inner lid 12
The number of parts can be reduced as much as possible without providing another heater above the inner lid 12 as in the related art. Also, since the electrical connection is simplified,
As a result, it is possible to provide a low-cost electric kettle with few failures.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, although an electric heater is used to heat the inner pot and the inner lid in the embodiment, other heating means may be used.

[0014]

[Effect of the Invention] The present invention provides an inner pot and an outer pot for accommodating the inner pot.
It has a shuttle and an inner lid for closing the upper opening of the inner shuttle.
In an electric kettle, a diameter integrally formed on an upper part of the outer kettle.
The large portion and the upper end of the large diameter portion are integrally formed,
A flange-shaped contact formed so that the outer peripheral portion of the inner lid contacts
A contact portion and an outer periphery of the large-diameter portion and below the contact portion
An annular heating means provided in contact with the portion,
A gap formed between the side surface and the large diameter portion of the outer hook;
With a small number of parts and without complicating the electrical connection, the heat retention of the inner pot and the heating of the inner lid are the same.
It is possible to provide an electric kettle that can be performed at times .

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of an electric kettle showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer pot 2 Large diameter part 3 Flange part (contact part) 4 Inner pot 6 Gap part 7 Heater (heating means) 12 Inner lid 13 Top opening

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Masayoshi Miyazawa 145, Oji, Honjo-cho, Yoshida-cho, Nishikanbara-gun, Niigata 30 References JP-A-56-158618 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 27/00-27/64

Claims (1)

(57) [Scope of request for utility model registration] An inner kettle; an outer kettle for accommodating the inner kettle;
An electric kettle having an inner lid that closes the upper opening of the inner kettle
A large-diameter portion integrally formed on an upper portion of the outer hook;
In addition to being formed integrally with the upper end of the large diameter portion,
A flange-shaped contact portion formed so that the outer peripheral portion is in contact with the front portion;
Abuts on the outer periphery of the large diameter portion and below the contact portion
An annular heating means provided at the side and front of the inner pot;
A gap formed between the outer hook and the large diameter section.
Electric kettle and wherein the door.