Electromagnetic heating device and heating control circuit thereof
A technology of electromagnetic heating device and heating control circuit, which is applied in the direction of electric heating device, induction heating control, electric/magnetic/electromagnetic heating, etc. It can solve the problems of complex circuit structure of heating device, complicated wiring of coil disk components, and affecting the service life of switches, etc. , to improve the experience, simplify the circuit structure and wiring, and prolong the service life
Active Publication Date: 2017-06-20
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD +1
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[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0025] The electromagnetic heating device and the heating control circuit of the electromagnetic heating device proposed by the embodiments of the present invention are described below with reference to the accompanying drawings.
[0026] figure 1 is a schematic block diagram of a heating control circuit of an electromagnetic heating device according to an embodiment of the present invention. Such as figure 1 As shown, the heating control circuit of the electromagnetic heating device includes: the first resonant capacitor C1, t...
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The invention discloses an electromagnetic heating device and a heating control circuit thereof. The heating control circuit comprises first and second resonant capacitors; first to fourth coil panels; first and second power switch tubes; first and second selective switches; and a control module. The first selective switch is used for selecting the first coil panel, and the first coil panel, the first resonant capacitor and the first power switch tube form a first resonance circuit, and the first selective switch is used for selecting the second coil panel, and the second coil panel, the second resonant capacitor and the second power switch tube form a second resonance circuit. The first and second selective switches are used for selecting a third coil panel, and the third coil panel, the first resonant capacitor and the first power switch tube form a third resonance circuit, and the first and second selective switches are used for selecting a fourth coil panel, and the fourth coil panel, the second resonant capacitor and the second power switch tube form a fourth resonance circuit. The control module carries out corresponding control to the first and second selective switches, and the first and second power switch tubes in order to control the first to fourth resonance circuits, and therefore the circuit structure and the wiring manner of the coil panels are simplified, and frequent switching of the selective switches is not needed.
Description
technical field [0001] The invention relates to the technical field of household appliances, in particular to a heating control circuit of an electromagnetic heating device and an electromagnetic heating device. Background technique [0002] In related electric cookers, when the heating device has multiple coil disk assemblies, it is necessary to connect multiple resonant capacitors and multiple IGBT switches to form the heating device, and when the number of coil disk assemblies is more than three Coordination with the selector switch is required. For example, three coil disk assemblies need to be controlled by three IGBT switches, and three resonant capacitors need to be connected at the same time. Therefore, the circuit structure of the heating device is complicated, the wiring of the coil disk assembly is also complicated, and the selection switch needs to be switched frequently, which affects the service life of the switch, and generates noise during switching, reducin...
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IPC IPC(8): H05B6/06
CPCH05B6/065
Inventor 钟石刚雷俊李信合李新峰吕文灿刘金明袁宏斌
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD