Air door device for refrigerator and freezer

Abstract

An air door device for a refrigerator and a freezer is composed of a frame, a baffle, a foam pad, thin flat plate type ion generator plates and the like. The baffle and the foam pad are provided witha set of thin flat plate type ion generator plates which are composed of nano titanium dioxide metal mesh plates and permanent magnets and do not need to be powered. The air door device has obvious sterilization and deodorization effects, and is durably effective; wind resistance of cold air in an air duct is not increased; and the structure is rational, and the power supply is not required.

Description

technical field [0001] The invention relates to the technical field of refrigerator dampers, in particular to a damper device for refrigerators and freezers. Background technique [0002] Damper devices are widely used in air-cooled frost-free refrigerators and freezers as temperature control components, including manual dampers, mechanical temperature-controlled dampers, and electric dampers. No matter which damper device is used, the air flow is controlled by opening and closing the damper baffle to control the temperature. The damper device has a frame body and an opening arranged in the frame body, and the area of ​​the entire baffle covers the area of ​​the opening. When the baffle is in sealing contact with the opening of the frame body, it is closed, and cold air cannot flow through; when the baffle swings away from the opening through the rotating shaft, it is opened, and at this time, the cold air can flow from the air duct through the opening to the refrigerator a...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN 105509398 A "A Refrigerator Damper for Deodorization" discloses a damper device with sterilizing and deodorizing components. Several sterilizing components installed on the frame are sterilized and deodorized by radiation. The device has the following disadvantages : 1) The sterilizing part is point-type, although there is a certain radiation angle, it is still difficult to sterilize and deodorize the damper opening in a large area; 2) The sterilizing part uses ultraviolet rays or photocatalysts or ozone generators, all of which require power supply , leading to complex structure of air door and refrigerator, high cost, increased energy consumption, and reduced reliability

[0005] Chinese patent CN 106288607 A "A Refrigerator Electric Damper and Refrigerator with Anti-Odor Bounding" discloses another damper device with a sterilizing and deodorizing component. The film layer is used to sterilize and deodorize, and the device has the following disadvantages: 1) The deodorizing layer and the odor-blocking film layer block the flow of cold wind, resulting in a large wind resistance, which will lead to insufficient cooling capacity of the refrigerator; 2) The deodorizing layer It is at least one of the catalysts attached to activated carbon, molecular sieve and honeycomb ceramic paper. These substances can only absorb but cannot kill or degrade bacteria and odor molecules. When the adsorption reaches saturation, it can no longer be adsorbed, so its sterilization and deodorization effect cannot last.

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