A motor blocking control circuit for a cooking machine and a control method thereof

Abstract

The invention relates to a motor blocking control circuit for a cooking machine, the invention solves the shortcomings of the prior art, The technical scheme is as follows: The cooking motor is powered by a power supply unit, the power supply unit is positively connected with the cooking motor through a pair of normally open contacts of the contactor KM1, the power supply unit is inversely connected with the cooking motor through a pair of normally open contacts of the contactor KM2, A high-temperature detection switch circuit is arranged on the cuisine motor, the positive electrode of the power supply unit is connected to the first end of the normally closed button SB1, the second end of the normally closed button sb1 is connected to the first end of the normally open button sb2, The first end of the normally open button SB2 is connected to the second end of the normally open button SB2 through the normally open delay disconnect contact of the time relay KT1, and the first end of thenormally open button SB2 is also connected to the second end of the normally open button SB2 through the normally open delay disconnect contact of the time relay KT2.

Description

technical field [0001] The invention relates to a motor stall control circuit, in particular to a motor stall control circuit for cooking machines. Background technique [0002] Cooking machine is a common kitchen equipment. Grinding soybean milk and making fruit juice can be easily done by users. However, when consumers use home cooking machines, they often put too much fruits and vegetables into the cup, causing cooking problems. When the machine is started, the knives in the cooking cup are embedded in the fruits and vegetables, and the motor is blocked. If the motor is blocked for too long, it is easy to burn out the entire cooking machine and cause electrical damage. At the same time, if the motor is protected when it is blocked and the torque output is cut off, the customer experience of the product will be much worse at this time. Therefore, considering two aspects comprehensively, a motor stall control circuit for cooking machines is designed. [0003] Motor stalli...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the above-mentioned prior art. When consumers use a household cooking machine, they often put too many fruits and vegetables into the cup, causing the cutting tool in the cooking cup to be embedded in the fruit and vegetables at the moment of starting the cooking machine, causing the motor to block. If the motor is blocked for too long, it is easy to burn out the entire cooking machine and cause electrical damage

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