A steam box and its fan speed control method

Abstract

The invention relates to a steam box and a method for controlling the speed of a fan. The steam box includes a body with a cooking cavity inside, and a steam generating device and a water inlet pump connected to the steam generating device are arranged in the body. The cooking cavity is connected, and the body is provided with an exhaust port that communicates with the outside. The cooking cavity and the exhaust port of the body are connected through an exhaust channel, and a fan is arranged inside the exhaust channel. It is characterized in that: There is a first gas flow sensor, a second gas flow sensor is provided in the exhaust channel, and a controller capable of controlling the speed of the fan is provided in the body, the first gas flow sensor, the second gas flow sensor Both the flow sensor and the water inlet pump are connected to the controller, and the controller is capable of determining the flow rate of steam according to the incoming steam flow signal detected by the first gas flow sensor, the exhaust steam flow signal detected by the second gas flow sensor, and the signal output by the water inlet pump. Dynamic control of fan speed.

Description

technical field [0001] The invention relates to a steam box and a method for controlling the rotational speed of a fan thereof. Background technique [0002] Most of the existing steam boxes are equipped with a fan. During the working process of the steam box, the fan starts to run to discharge the excess steam inside the steam box. The fan always runs at a predetermined fixed speed during the entire operation process. With this operation control method, when the inner tank is in the preheating stage, part of the steam in the inner tank will be discharged to the outside. Continuous discharge of steam will result in a large amount of steam discharged from the steam box. When the steam box is installed inside the kitchen, if the kitchen space is small, the steam discharged outside during the operation of the steam box will increase the kitchen humidity and affect the user experience. Contents of the invention [0003] The first technical problem to be solved by the present ...

AI Technical Summary

Problems solved by technology

With this operation control method, when the inner tank is in the preheating stage, part of the steam in the inner tank will be discharged to the outside. Continued discharge of steam will result in a large amount of steam discharged from the steamer. When the steamer is installed inside the kitchen, if the kitchen space is small, the steam discharged during the operation of the steamer will increase the kitchen humidity and affect the user experience.

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