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Electric cooker

A technology of electric rice cooker and conductive layer, which is applied in special materials of cooking utensils, cooking utensils, household utensils, etc. It can solve the problems of difficult bottom side heating, inability to cook, overheating of pot side, etc., and achieve the effect of improving heating efficiency

Inactive Publication Date: 2010-10-06
TIGER CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] First, since the thermal conductivity of the casserole is as small as 1 / 200 of that of aluminum, it is difficult to use high-output heating from the bottom for cooking. If the output is increased accordingly, it is found that it will cause local overheating on the side of the pot, which is caused by the overheating Abnormal temperature rise of the heating coil itself
At the same time, it was found that the heat preservation by the low output heating from the side also becomes the cause of the localized heating
[0011] The 2nd, such experimental results are all because finding non-metallic pots such as casseroles described in Patent Documents 1 to 3 have the same thickness from the bottom to the top, regardless of the conventional casserole pots. As a result, the deliciousness of rice cooked in a non-metallic pot of uniform thickness is due to the liveliness of the water in the non-metallic pot and the entire area of ​​rice caused by the flame licking the outer surface of the non-metallic pot and spreading to the side. Convection can achieve uniform heating, but the high output heating from the bottom of electric cooking is not as good as the above. The drop resistance strength of the posture is reduced, so it is not practical, and it is difficult to heat the bottom side in the heat preservation of the low output heating from the side, and it becomes a state of localized heating and uneven heat preservation
[0012] Third, the local heating causes scorching, or dew condensation occurs due to the temperature difference in the non-metallic pot, which also becomes the cause of sticky or raw rice
[0015] The 6th, in order to make electric rice cooker use non-metal pot, although it is judged that it is advantageous to utilize heating source such as the heater that is arranged on the metal trunk frame disclosed in patent document 3 to improve heating, it needs heating source and metal pot. The frame of the body part is extended to the side of the heating coil of the body
However, excessive expansion toward the heating coil side adversely affects the magnetic effect of induction heating from the heating coil to the heating element facing it, and stable and good cooking cannot be performed.

Method used

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Embodiment Construction

[0051] Below, refer to Figure 1 to Figure 21 Embodiments of the rice cooker of the present invention will be explained in detail for understanding of the present invention.

[0052] Such as Figure 1 ~ Figure 3 As shown, the electric rice cooker of this embodiment has: a non-metallic pot 1; a body 2 that accommodates the non-metallic pot 1 that can be put in and out; The temperature detection performed by the temperature sensor 22 that is in contact with the non-metallic pot 1 from the main body 2 side controls the energization to the heating coils 4a1, 4a2, and utilizes the alternating magnetic field from the heating coils 4a1, 4a2 to make the non-metallic pots 1 The conductive layers 4b1, 4b2 at the bottom generate heat for cooking. Here, the heating coils 4a1, 4a2 and the conductive layers 4b1, 4b2 mainly constitute the bottom heating source 4 for imparting heat for cooking, and the side heating source 5 and heater are also provided for mainly imparting heat to the cooke...

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PUM

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Abstract

An electric cooker has a main body (2) which can hold a non-metal pot (1) and a cover body (33) opening and closing the main body (2) and the non-metal pot (1); heaters (4b1, 4b2) for heating through electromagnetic induction are arranged on the external surface, the internal surface or inside of the non-metal pot (1); the electromagnetic induction of the heating coils (4a1, 4a2) on the main body (2) side make the heaters (4b1, 4b2) heat; a heat resisting plate (14) is disposed between the non-metal pot (1) and the heating coil (4a2); the heat resisting plate (14) isolates the heat on the side of the non-metal pot (1) having heaters (4b1, 4b2) for protecting the heating coil (4a2) and etc; the non-metal pot (1) is heated again by means of heat reflection; In the invention, the non-metal pot (1) is easy to seal heat and the electric cooker heats uniformly and completely to cook.

Description

[0001] This application is a divisional application of the invention patent application with the application number "200710091727.5" and the invention name "electric rice cooker" submitted by the applicant on March 29, 2007. technical field [0002] The present invention relates to an electric rice cooker that uses a non-metallic pot represented by a casserole and cooks with heat from a heating source such as an electric heating source using a heater or electromagnetic induction. Background technique [0003] There are known casserole pots for various electromagnetic induction heating cookers (for example, with reference to Patent Documents 1 and 2), and there are also known electric cookers that can put the casserole pots in and out and store them in the main body and use an electric heating source for cooking (such as Refer to Patent Document 3). Regardless of the difference between the outer surface and the inner and outer surfaces, the casserole of Patent Document 1 is p...

Claims

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Application Information

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IPC IPC(8): A47J27/00A47J36/04
Inventor 宫前升治藤原健二田窪博典北村信雄矢野吉彦朝冈修平森雅彦井上友见
Owner TIGER CORPORATION
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