JP2002142969A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a compact designing by arranging a metal outer frame better in servicing performance and appearance for securing safety. SOLUTION: The body 17 is constituted of an upper frame 24 forming an opening part of the top surface thereof and a lower frame 34 making up the bottom surface thereof. Moreover, the exterior of the outer frame of the body 17 comprises an external member 35 of a metal material such as stainless steel or collar steel plate and the interior thereof an internal member 36 made of an insulating material. The internal member 36 is integrated with the lower frame 34. As the internal member 36 made of the insulating material is arranged inside the external member 35 made of the metal material, the distance can be reduced between a heating coil as charging part in the body 17 and a control circuit 21 to make the body 17 compact while there is no contact between the charging part and the external member 35 made of the metal material to secure safety even when dropping or an extraneous force causes the external member 35, making the outer frame of the body 17, to be deformed and dented badly.

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 In recent years, rice cookers have been made compact, for example, as shown in FIG. In FIG.
Reference numeral 1 denotes a main body, an upper surface of which is open, a protective frame 3 serving as a storage portion for the pan 2 disposed inside the main body 1, a heating coil 4 for induction heating the pan 2 outside the protective frame 3, and Since the control circuit 5 is provided, the distance between the main body 1 and the heating coil 4 and the control circuit 5 is minimized to achieve compactness. A temperature detection sensor 6 for detecting the temperature of the pan 2 is provided at the bottom of the protection frame 3, and the temperature detection of the temperature detection sensor 6 controls the energization of the heating coil 4 to cook rice and keep the temperature.

A cover 7 covers an upper opening of the main body 1. The cover 7 is rotatably connected to a hinge member 9 integrally formed on an upper portion of an upper frame 8 constituting the upper portion of the main body 1 via a pin 10. Supported. Reference numeral 11 denotes an outer lid cover, and the outer lid cover 11 is fixed inside the lid 7. A radiator plate unit 12 is detachably attached to the lower surface of the outer cover 11. On the upper part of the heat sink unit 12, an outer lid cover 11 is provided.
There is a lid heating coil 13 which is a lid heating means supported by. By heating the radiator plate unit 12 by the electromagnetic action of the lid heating coil 13, the radiator plate unit 12 is heated from the upper surface at the time of cooking rice so as to wrap up the whole rice, and is a means of heating from the upper surface and heating the pan 2 at the time of keeping the temperature. By heating the induction coil 4, the temperature of the rice can be kept uniform.

A cover sensor 14 for detecting the temperature of the heat radiating plate unit 12 is provided so as to be in pressure contact with the heat radiating plate unit 12 side. Reference numeral 15 denotes a steam cylinder which is detachably provided in the steam passage 16 of the lid 7.

[0005]

In recent years, there has been a demand for a metal body due to problems of careability and appearance. However, in the above rice cooker,
If the main body 1 is made of metal due to its compactness, it is necessary to make a gap large in order to secure an insulation distance between the control circuit 5 and the main body 1, so that the main body 1 becomes large. In addition, even if the insulation distance is secured, there is a problem that the insulation distance cannot be secured when the main body 1 is dented due to a fall or an external force.

The present invention has been made to solve the above-mentioned problems, and provides a safe and compact rice cooker in which an outer shell of a main body is made of a metal material.

[0007]

In order to solve the above-mentioned problems, the present invention provides a main body, a pot removably stored in the main body, and a heating means provided in the main body for heating the pan. A lid which covers the upper opening of the main body and is provided so as to be openable and closable, and the outer shell of the main body is made of a metal material on the outside and made of an insulating material on the inside.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 comprises a main body,
A pan removably housed in the main body, a heating means provided in the main body for heating the pan, and a lid openably and closably provided to cover an opening at an upper surface of the main body; By using metal material on the outside and insulating material on the inside, it is possible to secure insulation and improve safety in a compact shape, and to configure the outer shell of the main unit with a metal material with good care and appearance. Can be.

According to the second aspect of the present invention, by forming the outer shell of the main body by integrating the outer metal material and the inner insulating material, the outer shell of the metal material having good careability and appearance has excellent workability and performance. The assemblability can be improved.

According to a third aspect of the present invention, a gap is provided between the outer metal material and the inner insulating material.
The heat insulation property can be improved by the outer shell of a metal material having good care and appearance.

According to the fourth aspect of the present invention, the heat insulating property can be further improved by providing a heat insulating material between the outer metal material and the inner insulating material.

According to the fifth aspect of the present invention, the main body is divided into an upper frame and a lower frame, and the outer metal material is sandwiched between the upper frame and the lower frame, so that only the metal material can be easily separated. Degradability and recyclability can be improved.

[0013]

(Embodiment 1) An embodiment of the present invention will be described with reference to FIG.

In FIG. 1, the main body 17 has an opening at the top, and a protective frame
9 is provided, and a heating means is provided outside the protection frame 19. In this embodiment, a heating coil 20 for inductively heating the pot 18 and a control circuit 21 are provided as heating means. A temperature detection sensor 22 for detecting the temperature of the pot 18 is provided at the bottom of the protection frame 19, and the control circuit 21 controls the energization of the heating coil 20 by the temperature detection of the temperature detection sensor 22 to cook and heat rice. Perform

Reference numeral 23 denotes a lid for covering an opening on the upper surface of the main body 17,
The lid 23 is rotatably supported via a pin 26 on a hinge member 25 integrally formed on an upper portion of an upper frame 24 constituting an upper portion of the main body 17. An outer lid cover 27 is fixed inside the lid 23. A heat sink unit 28 is detachably attached to the lower surface of the outer cover 27. A lid heating coil 29 serving as a lid heating means supported by the outer lid cover 27 is located above the radiator plate unit 28. This lid heating coil 29
By heating the radiator plate unit 28 by the electromagnetic action of the above, the radiator plate unit 28 is heated from the upper surface at the time of cooking rice so as to wrap the whole rice, and is heated from the upper surface and the heating of the induction coil 20 which is a heating means of the pan 18 at the time of heat retention. By
The temperature of rice can be kept uniform.

Reference numeral 30 denotes a lid sensor for detecting the temperature of the radiator plate unit 28, which is provided so as to be in pressure contact with the radiator plate unit 28, and controls the energization of the lid heating coil 29 by the detection of the lid sensor 30. Reference numeral 31 denotes a steam cylinder which is detachably provided in the steam passage 32 of the lid 23.

The main body 18 has an upper frame 24 forming an upper opening.
And a lower frame 34 forming a bottom surface. Further, an outer member 35 made of a metal material such as stainless steel or a color steel plate is provided outside the outer shell of the main body 18, and an inner member made of an insulating material is provided inside. It consists of 36. Inner member 36
Is formed by integrating the lower frame 34. Since the inner member 36 made of an insulating material is disposed inside the outer member 35 made of a metal material, the distance between the heating coil 20 and the control circuit 21 as a charging unit in the main body 18 can be reduced. The main body 18 can be made compact, and even if the outer member 35, which is the outer shell of the main body 18, is deformed and dented due to a fall or an external force, the outer member 35 made of a metal material does not touch the charging part, so that it is safe. It is.

In this embodiment, the inner member 36 and the lower frame 34 are integrally formed. However, the inner member 36 may be integrated with the upper frame 24. It may be provided as a separate member.

(Embodiment 2) Next, a second embodiment will be described with reference to FIG. FIG. 2 is a diagram showing only the outer portion of the main body 17. In FIG. 2, the outer shell of the main body 17 is formed integrally with an outer member 37 of a metal material and an inner member 38 of an insulating material. Therefore, the thickness of the outer member 37 and the inner member 38 can be minimized, and the body 17 can be made more compact.

The means for integrally forming the outer member 37 and the inner member 38 may be a method of insert-molding the inner member 38 of the insulating member using synthetic resin, or a structure in which the inner member 38 is attached to the outer member 37.

Further, in this embodiment, the entire bottom from the side of the outer shell is covered with the outer member 37. However, as shown in FIG. 1, the outer member 37 may be integrally formed only on the side of the outer shell.

(Embodiment 3) Next, a third embodiment will be described with reference to FIG. In FIG. 3, a gap 41 is provided between an outer member 39 made of a metal material and an inner member 40 made of an insulating material. By providing the gap 41, a stationary layer of air can be formed, the heat insulation effect can be enhanced, and the power consumption can be reduced. The outer member 39 includes an upper frame 42 forming an upper opening of the main body 17 and a lower frame 43 forming a bottom surface.
And the configuration. With this configuration, the lower frame 4
If the outer member 3 is removed, the outer member 39 made of a metal material can be easily separated, and the decomposability and recyclability can be improved.

(Embodiment 4) Finally, a fourth embodiment will be described with reference to FIG. In FIG. 4, a heat insulating material 46 is provided between an outer member 44 made of a metal material and an inner member 45 made of an insulating material. With this configuration, the heat insulating material 46
Can be easily held, and the heat insulating effect can be enhanced with a compact and highly safe configuration.

[0024]

As described above, according to the first aspect of the present invention, the outer shell of the main body is made of a metal material having good compactness and good safety, enhancing safety, and having good care and appearance. be able to.

According to the second aspect of the present invention, by forming the outer shell of the main body by integrating the outer metal material and the inner insulating material, the outer shell of the metal material having good care and appearance is provided. , Workability and assemblability can be improved.

According to the third aspect of the present invention, particularly, by providing a gap between the outer metal material and the inner insulating material, the outer shape of the metal material having good careability and appearance is provided. Thus, the heat insulation can be improved.

According to the fourth aspect of the present invention, the heat insulating property can be further improved by providing a heat insulating material between the outer metal material and the inner insulating material.

According to the fifth aspect of the present invention, in particular, the main body is divided into an upper frame and a lower frame, and the outer metal material is sandwiched between the upper frame and the lower frame. Can be easily separated, and the decomposability and recyclability can be improved.

[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 cross-sectional view showing only a body outer part of a rice cooker according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an outer part of a rice cooker according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view showing an outer part of a rice cooker according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view of a conventional rice cooker.

[Explanation of symbols]

 17 Body 18 Pot 20 Heating coil 23 Lid 33, 42 Upper frame 34, 43 Lower frame 35, 37, 39, 44 Outer member 36, 38, 40, 45 Inner member 41 Gap 46 Insulation material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4B055 AA05 AA09 BA06 BA35 BA56 BA57 BA63 BA80 CA19 CA71 CB02 CB17 CC43 CC48 CC68 CD02 DA02 DB14 FA06 FB01 FB33 FC11 GA13

Claims (5)

[Claims] 1. A main body, a pot removably housed in the main body, a heating means provided in the main body for heating the pan, and a lid provided to open and close the upper surface opening of the main body. And the outer shell of the main body is made of a metal material on the outside,
A rice cooker whose inside is made of insulating material. 2. The rice cooker according to claim 1, wherein an outer shell of the main body is formed by integrating an outer metal material and an inner insulating material. 3. The rice cooker according to claim 1, wherein an outer shell of the main body is provided with a gap between an outer metal material and an inner insulating material. 4. The rice cooker according to claim 2, wherein a heat insulating material is provided between the outer metal material and the inner insulating material. 5. The apparatus according to claim 1, wherein the main body is divided into an upper frame and a lower frame, and an outer metal material is sandwiched between the upper frame and the lower frame.
The described rice cooker.