Induction heating cooker

A technology of induction heating and cooker, which is applied in induction heating, induction heating device, electric/magnetic/electromagnetic heating, etc., can solve the problem that the abnormal overheating of the pot cannot be detected, and achieve the effect of safety control

Active Publication Date: 2010-09-01
日立グローバルライフソリューションズ株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the temperature of the portion of the pan that is difficult to heat is detected, abnormal overhe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is an external perspective view of the induction heating cooker of Example 1. exist figure 1 Among them, symbol 101 is the main body of the induction heating cooker, symbol 102 is an operation part for turning on and off the power supply and heating setting, etc., symbol 103 is a display part, and symbol 104 is a placing pot formed of heat-resistant glass or the like. top plate and is penetrating in the infrared field. Reference numerals 105 and 106 indicate the heating area where a heating coil such as an induction heating pot is installed below, reference number 107 indicates a heating area where a large-end heater such as a heating pot is installed below, and reference numbers 108 to 110 indicate infrared rays that radiate from the bottom of the pot. In the infrared ray penetrating region penetrating below the top plate 104 , the mark 111 is a suction port for cooling air that cools the circuits and the like provided in the main body 101 .

[0033] f...

Embodiment 2

[0050] Next, Embodiment 2 of the present invention will be described. Among the configurations of the second embodiment, descriptions of the same configurations as those of the first embodiment are omitted.

[0051] The induction heating cooker of the second embodiment can observe the temperature of the bottom of the pan at multiple places by providing a plurality of detection areas of the infrared sensor module. Figure 12 It is a top view of the vicinity of the heating coil 200 located below the heating region 106 . Such as Figure 12 As shown, the induction heating cooker of this embodiment is equipped with the detection area 121 and the detection area 122 of the infrared sensor module, and can observe the temperature of the pan bottom on the detection area 121 and the detection area 122 .

[0052] Here, if the infrared sensor module 407 is installed at two places directly below the detection areas 121 and 122, it becomes as follows: Figure 4 The obstacles of the coolin...

Embodiment 3

[0060] Next, Embodiment 3 of the present invention will be described. Among the configurations of the third embodiment, descriptions of the same configurations as those of the second embodiment are omitted.

[0061] Figure 14 It is a sectional view of the induction heating cooker of Example 3. Such as Figure 14 As shown, prisms 141 and 142 are provided under the top plate 104 . The infrared rays passing through the detection area 121 of the top plate 104 reach the infrared sensor module 407 through the prism 141 . Likewise, the infrared rays penetrating the detection area 122 of the top plate 104 reach the infrared sensor module 407 through the prism 142 . Compared with the structure of the embodiment 2, the structure of the embodiment 3 has fewer parts constituting the optical path, so in addition to the effect obtained by the structure of the embodiment 2, it has the advantage of being easy to manufacture.

[0062] In addition, in the induction heating cooker of Examp...

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PUM

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Abstract

An object of the invention is to provide an induction heating cooker with a pan temperature detecting unit capable of quickly detecting the highest temperature of the pan near a top board. According to the invention, in adjacent wound coilings of a heating coil, an infrared detecting element is arranged at the lower side between an inner periphery coil and an outer periphery coil formed by locally enlarging the interval of coilings, the distance from the infrared detecting element to the center of a heating coil is in the range of 45 to 55 mm.

Description

technical field [0001] The present invention relates to an induction heating cooker including a heating coil in a main body, and more specifically, relates to an induction heating cooker capable of rapidly detecting the vicinity of the maximum temperature of a pan on a top plate. Background technique [0002] The induction heating cooker has a top plate on which a pan or the like is placed on the upper surface of the main body, and an annular heating coil and its driving circuit are formed in the main body. An induction heating cooker is a cooker that makes a high-frequency current flow through a heating coil, uses the generated high-frequency magnetic field to generate eddy currents on a pot, and utilizes the Joule heat generated by the eddy currents to heat the pot itself for cooking. [0003] A conventional heating cooker detects the temperature of the bottom of the pot using a heat sensitive element such as a thermistor in contact with the lower surface of the top plate ...

Claims

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Application Information

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IPC IPC(8): A47J36/24H05B6/12
CPCH05B2213/07H05B6/062
Inventor 田岛泰治大友博川村光辉太田义注须崎正文
Owner 日立グローバルライフソリューションズ株式会社
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