Centrifugal fan and air-cooled refrigerator provided with same

A technology of centrifugal fans and air-cooled refrigerators, which is applied in the direction of machines/engines, mechanical equipment, household appliances, etc., can solve the problems of increasing the power consumption of the whole machine, loud noise, etc., and achieve the effects of improving energy efficiency, reducing noise, and comfortable experience

Active Publication Date: 2017-04-26
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refrigerator fans currently on the market are generally noisy, which will also increase the power consumption of the whole machine

Method used

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  • Centrifugal fan and air-cooled refrigerator provided with same

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Embodiment Construction

[0030] figure 1 is a schematic top view of a centrifugal fan according to an embodiment of the present invention. Such as figure 1 As shown, the embodiment of the present invention provides a centrifugal fan, which may include a chassis 20 , an inner hub 30 , a motor, a plurality of fan blades 40 and an anti-vibration ring 50 . The inner hub 30 is disposed on the upper surface of the chassis 20. For example, the inner hub 30 can be integrally formed with the chassis 20. The inner hub 30 defines an accommodation cavity, and the motor can be installed in the accommodation cavity. A plurality of fan blades 40 are disposed radially outside the inner hub 30 and evenly distributed on the upper surface of the chassis 20 along the circumferential direction of the inner hub 30 . The anti-vibration ring 50 is disposed on the upper ends of the radially outer edges of the fan blades 40 .

[0031] In particular, the outer peripheral surface of the inner hub 30 may be a cylindrical surfa...

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PUM

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Abstract

The invention relates to a centrifugal fan and an air-cooled refrigerator provided with the same. The centrifugal fan comprises an inner hub and multiple fan blades, wherein an accommodating cavity is defined in the inner hub; the multiple fan blades are arranged on the outer side in the radial direction of the inner hub and uniformly distributed in the circumferential direction of the inner hub; the distance between an axis of the inner hub and the inner radial end edge of each fan blade is 1.43-2.15 times of the radius of the peripheral surface of the inner hub; the distance between the axis of the inner hub and the outer radial end edge of each fan blade is 2.8-3.9 times of the radius of the peripheral surface of the inner hub. According to the centrifugal fan and the air-cooled refrigerator provided with the same, compared with existing centrifugal fans, the centrifugal fan is low in wind resistance and high in air output, realizes smooth air supply and remarkably reduces noise caused by air guiding, rotation and the like due to a special structure, so that energy efficiency of the refrigerator can be remarkably improved, and noise caused by operation of the refrigerator is reduced.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a centrifugal fan and an air-cooled refrigerator provided with the centrifugal fan. Background technique [0002] Modern air-cooled frost-free refrigerators are mainly composed of compressors, condensers, capillary tubes, evaporators, fans, heaters and other components. The compressor sucks the low-temperature and low-pressure refrigerant gas from the evaporator, and after being compressed by the compressor, it becomes a high-temperature and high-pressure superheated steam, which is discharged into the condenser. The capillary expands and depressurizes, and becomes a low-temperature and low-pressure wet vapor state, which enters the evaporator for vaporization, heat absorption, and cooling. An evaporator, a fan for forced cold air circulation, a refrigerating room damper (also known as a damper) leading to the refrigerating room, and a freezing room damper leading to the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66F25D17/06
CPCF04D29/281F04D29/30F04D29/666F04D29/668F25D17/062F25D2317/06F25D2317/0683
Inventor 王炎邹磊宁帅赵国良
Owner HAIER SMART HOME CO LTD
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