A wireless temperature measuring device for electromagnetic oven

Abstract

The invention discloses a wireless temperature measuring device for an induction cooker. The wireless temperature measuring device comprises an induction cooker operating coil, a control circuit, at least one temperature acquisition circuit, a signal transmitting circuit, a signal receiving circuit and an induction cooker operation detecting circuit, wherein the induction cooker operation detecting circuit is electrically connected with the temperature acquisition circuit, and comprises an inductance coil; the inductance coil is arranged in the electromagnetic field area of the induction cooker operating coil; and the operation detecting circuit is used for converting a voltage signal induced by the inductance coil into a high level capable of being recognized by the temperature acquistion circuit so as to start the temperation acquistion and data transmission operations of the temperature circuit, or a low level capable of being recognized by the temperature acquistion circuit so as to close the temperation acquistion and data transmission operations of the temperature circuit, or a low level capable of being recognized by the temperature acquistion circuit so as to delay the time limit and then to close the temperation acquistion and data transmission operations of the temperature circuit. The wireless temperature measuring device of the invention is provided with the operation detecting circuit, and utilizes the magnetic field of the induction cooker operating coil to start the temperature acquisition circuit, thereby being capable of improving the product reliability and prolonging the battery life.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic cookers, and in particular relates to a wireless temperature measuring device for the electromagnetic cooker. Background technique [0002] Most of the existing induction cooker heating appliances adopt the thermistor installed in the center of the inner coil disk to detect the temperature. The thermistor is tightly attached to the bottom surface of the ceramic plate through elastic support. The electromagnetic heating device heats the bottom of the heated load through the principle of electromagnetic induction. The heat is transferred from the heated load to the ceramic plate, and then conducted to the thermistor through the ceramic plate. The measured temperature does not directly reflect the real temperature in the pot. In addition, some heating devices and cooling fans in the induction cooker have a relatively large impact, so this temperature measurement method has disadvantages such...

AI Technical Summary

Problems solved by technology

However, this prior art causes the temperature acquisition circuit and the wireless transceiver module or circuit to be in working condition all the time, which consumes the electric energy of the battery and greatly shortens the service time of the battery.

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