Torque limiter, intelligent door opening and closing drive mechanism and household appliance

Abstract

The invention relates to the technical field of household appliances, and discloses a torque limiter, an intelligent door opening and closing drive mechanism and a household appliance. The torque limiter comprises a first shell provided with a containing groove, a second shell provided with a connecting protrusion and an elastic body, wherein the connecting protrusion stretches into the containinggroove, and the elastic body is arranged between the outer circumference wall of the connecting protrusion and the inner circumference wall of the containing groove. A rolling piece is further included and arranged between the elastic body and the second shell or arranged between the elastic body and the inner circumference wall of the containing groove. The rolling piece makes contact with the elastic body, and the elastic body is constantly in a compression state. The torque limiter, the intelligent door opening and closing drive mechanism and the household appliance aim at solving the problems that in torque limiter usage process, generated noise is large, the jamming phenomenon happens, and the customer experience degree is not good are solved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a torque limiter, an intelligent door opening and closing drive mechanism and household appliances. Background technique [0002] The torque limiter is mainly installed in the transmission structure to transmit torque and limit the size of the transmitted torque. The torque limiter includes an input end and an output end. When the transmission structure is working normally, the input end and the output end of the torque limiter rotate synchronously to transmit torque; when the load on the output end of the torque limiter is overloaded or fails, the torque limiter When the received torque exceeds the limit value, the input end and output end of the torque limiter will slip, that is, the input end rotates, while the output end stops rotating, so as to protect the transmission structure from overload. Due to the functions of torque transmission and overload protection ...

AI Technical Summary

Problems solved by technology

During the rotation of the second shell relative to the elastic body, the second protruding teeth repeatedly move between the "peak" and "trough" of the inner wall of the elastic body. When the "trough" turns to the "peak", the torque limiter There is torque output. When moving from the "peak" to the "trough", the torque output of the second housing is zero. When it moves from the "trough" to the "peak", there is torque output again, which reciprocates in sequence, resulting in discontinuous output of torque , during the use process, the customer will feel that the door body is light and heavy during the rotation process, and the movement of the door body is discontinuous, which makes the customer feel "stuck"

In addition, the second convex tooth is constantly moving between the "peak" and "trough" of the elastic body, the two produce "click" noise, and when the torque moves to the "trough", the torque is zero, resulting in a pause. The noise is high, and the above factors all affect the customer's experience of the product

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