Food processor with low noise

Abstract

The invention discloses a food processor with low noise. The food processor comprises a machine seat provided with a motor, a stirring cup connected with the machine seat and a grinding cutter arranged in the stirring cup; the upper end of the motor shaft of the motor is connected with the grinding cutter, the machine seat is provided with an air inlet and an air outlet, and the air outlet is located on one side of the lower part of the machine seat; and a heat dissipation air flue communicated with the air inlet is defined by the machine seat, a fan is arranged at the lower end of the motor shaft, a volute communicated with the heat dissipation air flue is arranged at the bottom of the machine seat, the volute is arranged at the periphery of the fan, a ventilation curve is arranged between the volute and the air outlet, wherein the arc length of the ventilation curve is L1, the arc length of the volute is L2, and the value of L1 / L2 is higher than or equal to 0.5 and lower than or equal to 2. The food processor can effectively lower the noise, and thereby improving the user experience.

Description

technical field [0001] The invention belongs to the field of food processing machines, in particular to a food processing machine with reduced noise. Background technique [0002] Existing food processors, such as food processors, juicers, etc., usually include a machine base and a processing part. A motor is installed in the machine base to drive the processing part to process food. However, the motor will continue to generate heat during the working process. Therefore, the existing food processing machines are generally provided with a heat dissipation structure, through which the heat dissipation can be realized in the cavity defined by the machine base. [0003] At present, the exhaust structure of the heat dissipation structure of the food processor can be classified into two types. One is the grid radial exhaust structure, that is, the grid is surrounded by a radial combination to form an exhaust structure. The wall of the channel is a circle of radial grid bars, so t...

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Problems solved by technology

[0003] At present, the exhaust structure of the heat dissipation structure of the food processor can be classified into two types. One is the grid radial exhaust structure, that is, the grid is surrounded by a radial combination to form an exhaust structure. The wall of the channel is a circle of radial grid bars, so the high-speed airflow discharged on the grid bars will produce whistle noise and resonance noise. In addition, the air duct enclosed by the radial grid bars is open, so that the motor rotor in the frame The high-speed whistle noise of the trunking and the airflow noise of the fan are easy to be transmitted directly, which will generate a lot of noise; the other is the use of a volute type exhaust structure, although the air duct wall of this structure is a volute type, which can partially eliminate The high-speed airflow hits the air whistle noise on the wall of the air duct, and the exhaust efficiency is also significantly improved, but the noise generated by the motor and fan in the machine base can also be directly transmitted to the outside of the machine base along the open volute air duct, so that There is still the problem of high noise, so the noise caused by the above two exhaust structures is relatively large, which increases the noise generated when the food processor is running, resulting in poor user experience

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