JPH0526012U - rice cooker - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose of the rice cooker of the present invention is to improve the heat retention and heat insulation efficiency of only the minimum necessary inner pot with a simple structure without changing the size of the rice cooker body. To do. [Structure] The opening of a container-shaped outer pot 1 with an open top is opened and closed with an outer lid 2 pivotally supported by the outer pot 1, and an inner pot 4 for storing cooked rice in the outer pot 1 is removable. The inner pan 4 is provided with electromagnetic induction heating means 5 at the lower part thereof, and the side surface of the inner pan 4 is bonded to the inner wall body 4a and the outer wall body 4b by welding or the like to form a hollow body. A vacuum heat insulating layer 15 is formed between the inner wall body 4a and the outer wall body 4b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention opens and closes the opening of a container-shaped outer pot whose upper surface is open with an outer lid pivotally supported by this outer pot, and detachably stores the inner pot for storing cooked rice in this outer pot. The present invention relates to a rice cooker provided with heating means at the bottom of the inner pot.

[0002]

[Prior Art]

 The conventional rice cooker is composed of an outer pot 21, an outer lid 22, an inner lid 23, an inner pot 24, etc., as disclosed in Japanese Utility Model Publication No. 2-2249.

In the outer pot 21, an inner wall body 21a and an outer wall body 21b made of metal such as stainless steel are adhered to each other by welding or the like to form a vacuum heat insulating layer 25 between the outer wall body 21a and the inner wall body 21b. It was A hot plate 27 having a rice cooking heater 26 embedded therein was attached to the inner bottom of the outer pot 21 with a plurality of attachment angles 28, and a heat retaining heater 29 was attached below the heat plate 27 with an attachment angle 30. Further, a heat sensitive body 31 having a heat sensitive element such as a thermistor built therein is provided on the inner bottom portion of the outer pot 21 so as to be in close contact with the inner pot 24 with a spring 32.

Similar to the outer pot 21, the outer lid 22 is formed by adhering an inner wall plate 22a and an outer wall plate 22b made of metal such as stainless steel to each other by welding or the like, and between the inner wall plate 22a and the outer wall plate 22b. The vacuum heat insulating layer 33 was formed, and the handle 34 was provided on the upper surface thereof.

The outer lid 22 having such a structure is rotatably supported by a hinge 35 fixed to an upper end portion of a side surface of the outer pot 21 with a shaft 36, and the rotation opens and closes the opening of the outer pot 21. The closed state is held by the engagement of the latch lever 37 and the latch hook 38, and is released by releasing the engagement of the latch lever 37 and the latch hook 38 by operating the latch button 39.

The outer pot 22 is provided with an elastic packing 40 such as silicon rubber on the outer peripheral portion on the inner surface side over the entire circumference, and the packing 40 seals the upper pot of the outer pan 21. The inner pot 23 is detachably fitted and supported by a suspension rod 41 with a packing 42 having elasticity such as silicon rubber, and when the outer lid 22 is closed, the opening of the inner pot 24 is closed.

[0007]

[Problems to be solved by the device]

 In the case of the rice cooker with the above configuration, a vacuum heat insulating layer is formed on the outer pan and outer lid to insulate the entire rice cooker, so the heat sensitive element that senses the temperature of the inner pan is connected to the control unit. It is very difficult to process the outer pot because it is necessary to provide an opening in the outer pot to pull out the cord for connecting.

Further, it is only necessary to improve the heat insulation and heat retention of only the inner pot, but in the conventional configuration, the outer pot and the outer lid are vacuum heat insulating layers, which increases the size of the entire rice cooker. The insulation efficiency was poor.

The rice cooker of the present invention has been made in view of the above problems, and has a simple structure that does not change the size of the rice cooker and has a simple structure to improve the heat retention and heat insulation efficiency of only the inner pan. The purpose is to improve.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the rice cooker of the present invention opens and closes the opening of a container-shaped outer pot with an open top surface with an outer lid that is pivotally supported by this outer pot, and cooks rice in this outer pot. The inner pan to be housed is detachably housed, and electromagnetic induction heating means is provided at the bottom of this inner pan, and the side part of the inner pan is formed into a hollow body consisting of an outer wall body and an inner wall body, and The inside of the side of the pan is held in vacuum.

[0011]

[Action]

 The rice cooker with the above structure has a simple structure to obtain a high heat insulating effect by maintaining the side surface of the inner pan for storing cooked rice in a vacuum, and the heat insulating efficiency at the time of heat insulation is also improved.

[0012]

【Example】

 An embodiment of the rice cooker of the present invention will be described with reference to FIGS. The rice cooker of the present invention was composed of an outer pot 1, an outer lid 2, an inner lid 3 and an inner pot 4.

The outer pot 1 is composed of an inner wall body 1a and an outer wall body 1b made of metal such as stainless steel, and an electromagnetic induction heating means 5 for cooking rice is attached to an inner bottom portion of the outer pot 1. A heat sensitive body 6 having a heat sensitive element such as a thermistor is provided on the inner bottom of the outer pot 1 so as to be in close contact with the inner pot 4 with a spring 7.

The outer lid 2 has a handle 8 on its upper surface, and the outer lid 2 is rotatably supported by a hinge 9 fixed to the upper end of the side surface of the outer pot 1 with a shaft 10 rotatably. The opening state of the outer pot 1 is opened and closed by means of the latch lever 11 and the latch hook 12, and the latch button 11 scans the latch lever 11 and the latch hook 12. It was released by releasing it. Further, a packing 14 having elasticity such as silicon rubber is provided on the outer peripheral portion on the inner surface side of the outer lid 2 over the entire circumference, and the packing 14 seals the space between the outer lid 1 and the upper end portion.

In the inner pot 4, the side wall portions of the inner wall body 4a and the outer wall body 4b are adhered to each other by welding or the like to form a vacuum heat insulating layer 15 between the inner wall body 4a and the outer wall body 4b, and the bottom portion thereof is a single layer. The structure is made of a material that can be heated by the electromagnetic induction heating means 5.

The suspension rod 16 is detachably fitted and supported on the suspension rod 16 with the elastic packing 17 such as silicon rubber, and when the outer lid 2 is closed, the opening of the inner pot 4 is closed. Was.

In the rice cooker having the above-mentioned configuration, when rice is stored in the inner pot 4 to cook rice, the electromagnetic induction heating means 5 is energized, and the electromagnetic force generated by the electromagnetic induction heating means 5 causes the inner pot 4 to move. Swing It is heated and cooks rice. At this time, the vacuum heat insulating layer 15 on the side surface of the inner pot 4 can minimize heat influence from the outside and heat from the outside, and can cook very good cooked rice. Even if only the inner pot 4 is brought to the table, the inner pot 4 itself has a heat retaining structure, so that the cooked rice is hard to cool and it is possible to eat warm cooked rice.

[0018]

[Effect of the device]

 Since the rice cooker of the present invention has the above-described structure, it is possible to improve heat insulation and heat retention efficiency with a simpler structure than forming a vacuum space in the outer pan and the outer lid as in the conventional case. Also, since only the minimum required inner pot is insulated and kept warm, it is possible to perform heat insulation and keep heat very efficiently. Even if you bring only the inner pot to the table after cooking rice, the inner pot itself has a heat insulating and heat-retaining structure, so it has a heat-retaining effect and the cooked rice is hard to cool and you can eat warm cooked rice.

[Brief description of drawings]

FIG. 1 is an overall schematic sectional view showing an embodiment of a rice cooker of the present invention.

FIG. 2 is a sectional view showing an inner pot of the rice cooker of the present invention.

FIG. 3 is a schematic cross-sectional view showing an example of a conventional rice cooker.

[Explanation of reference numerals] 1 outer pot 2 outer lid 3 inner lid 4 inner pot 4a outer wall body 4b inner wall body 5 electromagnetic induction heating means 6 heat sensitive body 9 hinge 10 shaft 11 latch lever 12 latch hook 13 latch button 15 vacuum heat insulation layer

Claims (1)

[Scope of utility model registration request] 1. A container-shaped outer pot having an open top is opened and closed by an outer lid pivotally supported by the outer pot, and an inner pot for storing cooked rice is detachably accommodated in the outer pot. In the one in which heating means is provided in the lower part of the inner pot, the heating means is constituted by an electromagnetic induction heating means, and the side surface portion of the inner pot is formed into a hollow body composed of an outer wall body and an inner wall body, A rice cooker characterized in that the inside of the side surface of this inner pot is held in a vacuum.