Door opening and closing device and refrigerator

Abstract

The invention relates to a door opening and closing device and a refrigerator. The refrigerator comprises a motor and a door body, the door opening and closing device comprises a driving structure which is in transmission connection with the motor, a middle transmission structure and a driven structure which is in transmission connection with the door body, the middle transmission structure comprises a slipping mechanism, when the door opening and closing device is in a working state, the driving structure is in transmission connection with the middle transmission structure, the middle transmission structure is further in transmission connection with the driven structure, the slipping mechanism is configured such that, in a working state, the driving structure transmits torque to the middle transmission structure, the middle transmission structure transmits the torque to the driven structure, and the slipping mechanism causes the middle transmission structure to limit transmission of torque from the driven structure to the driving structure. According to the door opening and closing device, when the door opening and closing device is in the working state, a user can achieve automatic door opening and closing through the motor and can further achieve manual door opening and closing with small force,and therefore the use experience of the user is improved; and when a door is manually closed, suction of a door seal can be better achieved, and the use experience of the user is improved.

Description

technical field [0001] The present disclosure relates to the technical field of electrical equipment, in particular to a door opening and closing device and a refrigerator. Background technique [0002] With the improvement of people's living standards, automatic electrical equipment is gradually favored by people. The electrical equipment is, for example, a refrigerator, and a door opening and closing device is generally provided in the refrigerator to realize automatic opening and closing of the door, so as to facilitate the use of users. [0003] When it is inconvenient for the user to open the door of the refrigerator with both hands, the user can realize automatic opening and closing of the door by means such as voice recognition, gesture recognition or touch recognition. When the door is automatically opened and closed, the torque in the door opening and closing device is transmitted in the forward direction (that is, the motor is transmitted to the door body), so as t...

AI Technical Summary

Problems solved by technology

[0004] However, when the refrigerator is powered off, the door opening and closing device cannot automatically control the opening and closing of the door body, and the user needs to manually open and close the door.

When opening and closing the door manually, the torque in the opening and closing device will be transmitted in reverse (that is, from the door body to the motor), and there will be a large resistance during the transmission process, which will cause manual opening and closing of the door to be laborious and affect the user experience

Moreover, when the door is manually closed, it will cause resistance to the door seal, and the door cannot be closed tightly, which will also affect the user experience

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