Air door device for refrigerator and refrigerator

Abstract

The invention discloses an air door device for a refrigerator and the refrigerator and aims to solve the problem of blockage of an air door due to the fact that condensate water flows into a ventilation port and is frozen when the air door of an air door device of an existing refrigerator is opened or closed. The device comprises an air door body and an air door cover moving relative to the air door body and further comprises a driving device for driving the air door cover to move linearly; the driving device comprises a motor and a transmission piece; the air door cover comprises a sliding plate matched with the transmission piece and a front air door cover capable of sealing a ventilating port; the front air door cover is glidingly connected with the sliding plate and can slide relative to the sliding plate in the extending direction of the ventilating port; an elastic piece is arranged between the front air door cover and the sliding plate; the front air door cover is enabled to move in the extending direction of the ventilating port under the effect of the elastic force of the elastic piece; the sliding plate is driven by the driving device to drive the front air door cover to move in the plate surface direction of an air channel plate; and meanwhile, the elastic piece enables the front air door cover to extend into the ventilating port to close the ventilating port or slide out of the ventilating port to open the ventilating port.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a damper device for a refrigerator and a refrigerator. Background technique [0002] In order to meet the needs of fruit, meat and other food storage, refrigerators need to be subdivided into functional areas in the refrigerating and freezing compartments. For example, the refrigerating compartment of a refrigerator needs to expand functional areas such as dry and wet areas, ice temperature areas, and variable temperature areas. In order to meet the above-mentioned requirements of the refrigerator, it is necessary to add a damper device in the air duct of the refrigerator to control each functional area to meet the storage requirements of various foods. [0003] Existing a kind of refrigerator damper device, as figure 1 As shown, it includes: a damper body 01 with a ventilation hole 011, a cover plate 02 capable of closing and opening the ventilation hole 011; wherein, the...

AI Technical Summary

Problems solved by technology

[0004] The above damper device has the following problems: 1. Since the cover plate 02 can only move in a straight line under the action of the driving device, when the ventilation hole 011 is closed, it does not enter the ventilation hole 011, so the condensed water in the refrigerator can easily enter the ventilation hole 011 , and bonded with the cover plate 02 to form an ice cube, and finally block the damper; 2. See figure 1 and figure 2 , since the cover plate 02 is slidingly connected to the damper body 01 through the rack-and-pinion mechanism 04, when the gear 042 rotates and drives the rack 041 to move, the force F exerted by the gear 042 on the rack 041 0 Not along the moving direction of the cover plate 02, but at a certain angle with the moving direction of the cover plate 02, and since the guide grooves 021 provided at both ends of the cover plate 02 are directly matched with the guide plate 012, the cover plate 02 During the sliding process along the guide plate 012, at F 0 The normal component of force F n0 Under the action of the cover plate 02, the force on both ends along the moving direction of the cover plate 02 is not easy to maintain balance, and the guide grooves 021 provided at both ends of the cover plate 02 cannot always fit with the guide plate 012, which is prone to relative misalignment, so that the cover plate 02 The plate 02 is prone to shake during the process of opening or closing the ventilation hole 011, and the movement stability of the cover plate 02 is relatively poor

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