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. The body is provided with an exhaust port, and the exhaust ports of the cooking cavity are connected through an exhaust channel. A fan is arranged in the communication of the exhaust passage, and the feature is that a first gas flow sensor is arranged in the air intake passage, a second gas flow sensor is arranged in the exhaust passage, a temperature sensor is arranged in the cooking cavity, and a gas flow sensor is arranged in the body. The controller electrically connected to the fan, the first gas flow sensor, the second gas flow sensor and the temperature sensor are all connected to the controller, and the controller can control the flow according to the incoming steam flow signal, the exhaust steam flow signal and the temperature signal detected by the temperature sensor. Dynamic control of fan speed. Compared with the prior art, the present invention can dynamically adjust the speed of the fan according to the temperature in the cooking cavity, the amount of steam entering the cooking cavity, and the amount of steam exiting the cooking cavity.

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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