Door opening and closing signal detection structure and method as well as refrigerator

Abstract

The invention provides a door opening and closing signal detection structure and method as well as a refrigerator. A refrigerator door on the refrigerator is arranged at one side of a refrigerating chamber through the door opening and closing signal detection structure, an optical grating plate connected with the refrigerator door, a light source assembly and a light sensitive assembly arranged attwo sides of the optical grating plate are arranged on the door opening and closing signal detection structure, light emitted through the light source assembly is radiated on the light sensitive assembly after passing through the optical grating plate so as to enable the light sensitive assembly to generate induced current, when the refrigerator door performs door opening and closing action, theoptical grating plate moves along with the action of the refrigerator door, and the induced current generated through the light sensitive assembly is changed. According to the door opening and closingsignal detection structure and method as well as the refrigerator, the movement information of the door is converted into an electric signal of the induced current, and the electric signal is fed back to a main control chip to generate control information so as to achieve the purpose of controlling the movement of the door; and the door opening and closing signal detection structure solves the problems that in the prior art, a door still performs the original movement direction under the condition that the door is obstacle by an obstacle, so that the damage of a door body and a structural component is caused or a person is collided, and then safety accidents are caused.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a door opening and closing signal detection structure and method and a refrigerator. Background technique [0002] With the popularization of intelligent refrigerators, automatic door opening of refrigerators has become a trend of user interaction experience: when users hold food or plates in their hands, refrigerators can automatically open the door by receiving voice information or sensing motion information and body information. It is convenient for users to take items in the refrigerator or place items in the refrigerator when it is inconvenient to open the door. [0003] However, in the existing interactive mode of automatically opening the refrigerator door, there are the following problems: when an obstacle or a human body is hit on the opening and closing path of the refrigerator door, the refrigerator door will not stop or move in reverse to avoid the obstacle, and...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem in the prior art that during the automatic opening and closing process of the refrigerator door, when hitting an obstacle or a human body, it will not stop or move in the opposite direction to avoid the obstacle, the present invention proposes a door opening and closing signal detection structure for turning the door The motion information of the body is converted into a current signal, and the current signal is fed back to the drive motor to change the motion of the door body. At the same time, a door opening and closing signal detection method and a refrigerator using the door opening and closing signal detection structure are proposed.

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