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A centrifugal fan refrigerator air duct structure and refrigerator

A centrifugal fan and air duct technology, applied in the field of air duct structure of refrigerators, can solve the problems of inability to meet the air volume of the refrigerating room, poor temperature consistency, low air pressure, etc., and achieve convenient installation and fixing, small gap distance, and refined air volume. effect of assignment

Active Publication Date: 2016-10-05
HISENSE(SHANDONG)REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The air duct structure of existing air-cooled refrigerators is mostly designed according to the air supply characteristics of the axial flow fan. On the one hand, because the wind is blown out or sucked in along the direction of the fan axis, a considerable space needs to be reserved in front of the fan to ensure that the fan The noise during rotation meets the standard requirements. The general distance is 1 / 3 of the fan diameter. For example, a fan with a diameter of 120mm needs to reserve a space of 40mm; on the other hand, the wind pressure is small, and the wind speed is slow far away from the air outlet
Since the air supply direction of the centrifugal fan is completely different from the air supply mode of the axial flow fan, if the existing air duct is used, the air volume required by the refrigerator room, freezer room, and variable temperature room cannot be met, and the temperature consistency in each room is poor and there is a temperature difference.

Method used

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  • A centrifugal fan refrigerator air duct structure and refrigerator
  • A centrifugal fan refrigerator air duct structure and refrigerator
  • A centrifugal fan refrigerator air duct structure and refrigerator

Examples

Experimental program
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Effect test

Embodiment 1

[0033] As shown in the figure, the air duct structure of a centrifugal fan refrigerator in this embodiment includes a fan bracket 2 and an air duct cover plate 1, a motor 4 and a centrifugal impeller 3 are installed on the fan bracket 2, and an air outlet 12 is arranged on the fan bracket 2. , The air guide ring 13 is arranged outside the air outlet 12, and the air guide groove 14 is arranged outside the air guide ring 13 to connect the air ducts of each room.

[0034] The wind distribution guide groove 14 is in the shape of a third-order Bezier curve. The distance from the outer diameter of the wind guide ring 13 to the air distribution guide groove 14 is b=4mm. The air-distributing guide groove 14 is divided into four strands, two of which are connected to the freezer air duct 15, and the other two are respectively connected to the refrigerator compartment air duct 16 and the variable room air duct 17.

[0035] A variable temperature air duct group 18 is set between the fan...

Embodiment 2

[0039] As shown in the figure, the air duct structure of a centrifugal fan refrigerator in this embodiment includes a fan bracket 2 and an air duct cover plate 1, a motor 4 and a centrifugal impeller 3 are installed on the fan bracket 2, and an air outlet 12 is arranged on the fan bracket 2. , The air guide ring 13 is arranged outside the air outlet 12, and the air guide groove 14 is arranged outside the air guide ring 13 to connect the air ducts of each room.

[0040] The wind distribution guide groove 14 is in the shape of a third-order Bezier curve. The distance from the outer diameter of the air guide ring 13 to the air distribution guide groove 14 is b=6mm. The air-distributing guide groove 14 is divided into four strands, two of which are connected to the freezer air duct 15, and the other two are respectively connected to the refrigerator compartment air duct 16 and the variable room air duct 17.

[0041]A variable temperature air duct group 18 is set between the fan s...

Embodiment 3

[0045] As shown in the figure, the air duct structure of a centrifugal fan refrigerator in this embodiment includes a fan bracket 2 and an air duct cover plate 1, a motor 4 and a centrifugal impeller 3 are installed on the fan bracket 2, and an air outlet 12 is arranged on the fan bracket 2. , The air guide ring 13 is arranged outside the air outlet 12, and the air guide groove 14 is arranged outside the air guide ring 13 to connect the air ducts of each room.

[0046] The wind distribution guide groove 14 is in the shape of a third-order Bezier curve. The distance from the outer diameter of the air guide ring 13 to the air distribution guide groove 14 is b=5mm. The air-distributing guide groove 14 is divided into four strands, two of which are connected to the freezer air duct 15, and the other two are respectively connected to the refrigerator compartment air duct 16 and the variable room air duct 17.

[0047] A variable temperature air duct group 18 is set between the fan ...

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Abstract

The invention provides a centrifugal fan refrigerator air duct structure and a refrigerator, comprising a fan bracket and an air duct cover plate, a motor and a centrifugal impeller are installed on the fan bracket, an air outlet is arranged on the fan bracket, and an air guide ring is arranged outside the air outlet to guide the wind. The outside of the ring is equipped with air distribution guide grooves to connect the air ducts of each room; this invention aims at the air supply characteristics of centrifugal fan refrigerators, through reasonable structural design, can effectively improve the air duct structure, dredge cold air, and meet the needs of refrigerators, freezers, transformers, etc. The air volume required by the greenhouse, due to the reasonable distribution of air volume in each room, the refrigerator of the present invention has higher cooling efficiency and better cooling effect than the common centrifugal fan refrigerator, energy saving and environmental protection, while the volume increases and the volume decreases, making full use of the wind pressure of the centrifugal fan The biggest advantage is that the temperature consistency of each chamber is good and the temperature difference is small.

Description

technical field [0001] The invention relates to an air channel structure of a refrigerator, in particular to an internal air channel mechanism using a centrifugal fan and a refrigerator with the air channel structure. Background technique [0002] The air-cooled refrigerator distributes the air that absorbs the cooling capacity of the evaporator to each compartment through the design of the air duct, because the storage temperature of each compartment is closely related to the air volume distribution ratio of the compartment, and the air volume distribution of each compartment The situation is related to the matching of the working characteristics of the fan and the resistance characteristics of the air duct in each room. Therefore, air-cooled refrigerators of different specifications and models have different fan forms and air duct structures, as well as different fan characteristics and air duct resistance characteristics. [0003] At present, the type of fan used in comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D17/06
Inventor 李琴张树栋荆坚强
Owner HISENSE(SHANDONG)REFRIGERATOR CO LTD