Door opening and closing mechanism for front air outlet of cabinet air-conditioner

Abstract

The invention provides an opening-closing mechanism for a front air outlet of a chest-type air conditioner. The mechanism adopts a structure that two gears which are connected with a stepper motor drive respective meshing driven gears to rotate, and the driven gears mesh with a rack arranged on an opening-closing door plate; two sides of the opening-closing door plate are provided with two positioning columns; the positioning columns are in close fit with copying track grooves arranged on an air-outlet inner frame; and the driven gears drive the opening-closing door plate to do corresponding movement along set copying tracks, so as to open and close the air outlet. In addition, the inner side of the opening-closing door plate is provided with guide slots parallel to the rack respectively; one end of each driven gear is sleeved with a limiting stopper; the limiting stopper can rotate around a driven gear shaft; two positioning columns are arranged on the limiting stopper; and the positioning columns are in close fit with the guide slots inside the opening-closing door plate, so as to ensure that the driven gears and the rack are in a normal meshing state when the opening-closing door plate moves to any position. When the opening-closing door plate is closed, the lower part is self locked radially through limiting columns arranged on two sides of the opening-closing door plate, and the copying track grooves arranged on two sides of an air-outlet frame, the upper part is self locked radially through a position where the gears mesh with the rack, so as to ensure that the opening-closing door plate does not move when users push the opening-closing door plate inwards with hands during abnormal operation.

Description

technical field [0001] The invention relates to a door opening and closing mechanism of a front air outlet of a cabinet type air conditioner, which belongs to the transformation technology of the front air outlet opening and closing door mechanism of a cabinet type air conditioner. Background technique [0002] In order to ensure indoor air quality and provide users with a higher quality guarantee for the health of users, the requirements for the cleanliness of air conditioners (including the cleanliness of the interior of the air conditioner) are getting higher and higher. For this reason, many air conditioner manufacturers have embarked on the air conditioner air outlet shielding mechanism Research and development, that is: the air outlet of the air conditioner is fully closed when the air conditioner is in the closed state, and the air outlet can be opened in time and smoothly when the air conditioner is turned on. This greatly reduces the probability of floating dust in ...

AI Technical Summary

Problems solved by technology

This method mainly relies on the friction resistance of the mechanism and the motor to achieve locking when the door is closed, so the output torque of the motor is required to be large, and the cost of the motor is also high; at the same time, because the switch door panel and the driving mechanism need to be hidden inside the upper panel , which also increases the thickness of the upper panel and increases the corresponding manufacturing cost

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