External automatic controller applied to electric food warmer
An automatic controller and external technology, applied in the field of controllers, can solve the problems of unable to automatically control the heating power of electric heating kitchen utensils and single control function, and achieve the effect of intuitive operation interface, strong versatility, and avoiding aging
Inactive Publication Date: 2013-05-29
陈国鑫
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Problems solved by technology
This patent can overcome the above-mentioned limitations of the existing electric heating kitchenware, but it has the limitation that the heating power of the electric heating kitchenware cannot be automatically controlled and the control function is single
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Such as figure 1 As shown, the controller housing is equipped with a power control switch K1, a function switching switch K2 and an indicating device. The indicating device is composed of 5 LED indicators from LED1 to LED5. The controller housing is also equipped with a power input circuit interface and The power supply output circuit interface is electrically connected with the mains power supply and the electric heating pan respectively.
[0022] Such as figure 2 , 3 As shown, the power input circuit connected to the mains is connected to the power input interface of the single-chip microcomputer IC1 after step-down rectification circuit and secondary step-down circuit, and the other I / O interfaces of the single-chip microcomputer IC1 are respectively connected to the indicating device, power The control switch K1, the function swi...
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The invention relates to an external automatic controller applied to electric food warmers. The external automatic controller applied to electric food warmers is characterized in that a relay J 1 serves as a circuit breaker which can be switched on and off to control a power supply output circuit, the time and duration of switching on and off are controlled through a single chip I C 1 according to the states of a power supply control switch K 1 and a function shifting switch K 2, a power supply input circuit is stepped down and rectified through a stepping down and rectifying circuit and a secondary stepping down circuit and connected to the power supply input interface of the single chip I C 1, and other I / O interfaces of the single chip I C 1 are respectively connected with the power supply control switch K 1, the function shifting switch K 2, an indicating device and the relay J 1. The relay J 1 is connected to the L line of the power supply input circuit, L line of the power supply output circuit and the stepping down and rectifying circuit. The external automatic controller applied to electric food warmers has the advantages of having various control functions for cooking, durable services, being safe, suitable for electric heating appliances with high power, and widely used for automation control of household electric heating appliances.
Description
technical field [0001] The invention relates to a controller, in particular to an external automatic controller for an electric heating pan. Background technique [0002] At present, with the continuous development of electronic technology and the maturity of electronic control technology, various electric heating kitchen utensils such as electric rice cookers, electric saucepans, electric pressure cookers, etc. have entered people's lives one after another. There are a wide variety of rice cookers with a single function of heat insulation, to multi-functional automatic electric heating pots with timing, heat preservation, and automatic cooking. But most of the existing electric heating kitchen utensils integrate the control circuit inside the kitchen utensils and realize the automatic control of the electric heating kitchen utensils by means of the control panel arranged on the kitchen utensils. Because the control circuit of this type of electric heating kitchen utensils ...
Claims
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IPC IPC(8): G05B19/042A47J36/00A47J27/00
Inventor 陈国鑫
Owner 陈国鑫