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Centrifugal fans for appliances including refrigerators

A technology of centrifugal fans and refrigerators, which is applied to components of pumping devices for elastic fluids, household refrigeration devices, pump devices, etc., can solve problems such as collision loss and multiple noises, and achieve collision prevention and power consumption reduction , the effect of reducing noise

Inactive Publication Date: 2019-01-11
DONGBU DAEWOO ELECTRONCIS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, collision losses (e.g. reduced airflow) and / or excessive noise can occur

Method used

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  • Centrifugal fans for appliances including refrigerators
  • Centrifugal fans for appliances including refrigerators
  • Centrifugal fans for appliances including refrigerators

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0038] Hereinafter, exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings.

[0039] In describing the exemplary embodiments, technical contents that are known in the technical field to which the present disclosure pertains and that have no direct relationship with the present disclosure will not be described. By omitting unnecessary descriptions, the technical content of the present invention can be described and / or conveyed more clearly.

[0040] Some components may be exaggerated in size, or omitted, or shown schematically in the drawings. The drawings are not necessarily drawn to scale. In each figure, like reference numerals designate like or corresponding elements.

[0041] image 3 is a schematic diagram of a blower device 50 including a centrifugal fan 60 according to one or more exemplary embodiments of the present disclosure, wherein the blower device may be used in a refrigerator or an air...

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PUM

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Abstract

A centrifugal fan for a refrigerator may include: a plurality of blades radially arranged around a central axis; an annular protective cover connected to the blades and including a curved portion having a predetermined radius or curvature and having a curved portion with respect to the curved portion a predetermined gradient or angle at an angle; and a bottom surface connected to a vane on the opposite side of the shroud, wherein the inner diameter r is the shortest distance between the vane and the shaft and is the vane and The ratio of the outer diameter R of the longest distance between the shafts (r / R) is in the range of about 0.69±0.01.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Korean Patent Application No. 10-2013-0166419 filed on December 30, 2013, the entire contents of which are hereby incorporated by reference. technical field [0003] Embodiments according to the present disclosure relate to centrifugal fans that may be used in appliances such as refrigerators. Background technique [0004] Typically, refrigerators use a refrigeration cycle to provide cold air and to cool and / or prevent food from spoiling. A refrigerator is a device (eg, a household appliance) that uses cold air to store food and keep it fresh for a longer period of time. A fan is installed in the refrigerator in communication with ducts that circulate cool air to and through the refrigerator and / or freezer. [0005] figure 1 is a sectional view of an example of a refrigerator. [0006] Such as figure 1 As shown in , a refrigerator generally includes: an outer c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/30F04D25/08F25D17/06
CPCF04D29/281F04D29/663F04D29/666F25D17/067F25D2317/068F04D29/30F25D17/062F25D2317/0683F25D2500/02F04D29/28F25D17/06F04D17/10
Inventor 权赫张
Owner DONGBU DAEWOO ELECTRONCIS CORP