Title:
AIR DUCT ASSEMBLY FOR REFRIGERATOR AND REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2023/131027
Kind Code:
A1
Abstract:
An air duct assembly for a refrigerator and a refrigerator. The air duct assembly comprises: air duct foam, which delimits therein an airflow channel used for airflow to flow through, and which is provided with an airflow outlet used for communicating the airflow channel with a storage compartment; an air door, rotatably arranged in the airflow channel so as to completely block the airflow channel or unblock at least part of the flow passage cross section of the airflow channel; an operation knob, configured to be operably rotatable; and a gear drive mechanism, connected between the operation knob and the air door, and configured to transmit the rotation of the operation knob to the air door so as to adjust the flow passage area of the airflow channel by means of the rotation of the air door. The operation knob, the gear drive mechanism and the air door all use a rotation motion mode, thus bringing low friction resistance, avoiding an unsmoothness phenomenon, and offering a good user operation experience. Moreover, the present invention achieves a purpose of temperature adjustment completely by means of a mechanical structure without the need of providing a motor, a control program and the like, thus reducing cost.
Inventors:
SHI WENBO (CN)
ZENG FANXING (CN)
XUE JINLIANG (CN)
SUN XUHUI (CN)
ZHANG HUI (CN)
ZENG FANXING (CN)
XUE JINLIANG (CN)
SUN XUHUI (CN)
ZHANG HUI (CN)
Application Number:
PCT/CN2022/142829
Publication Date:
July 13, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
QINGDAO HAIER REFRIGERATOR CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25D17/04
Foreign References:
| CN217031764U | 2022-07-22 | |||
| CN106546052A | 2017-03-29 | |||
| CN105222469A | 2016-01-06 | |||
| CN108224881A | 2018-06-29 | |||
| CN110686449A | 2020-01-14 | |||
| CN204830648U | 2015-12-02 | |||
| CN210070340U | 2020-02-14 | |||
| CN2589904Y | 2003-12-03 | |||
| JPH04273976A | 1992-09-30 | |||
| US5901562A | 1999-05-11 |
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)
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