Centrifugal fan system and air-cooled refrigerator using the centrifugal fan system
A technology for centrifugal fans and air-cooled refrigerators, used in machines/engines, components of pumping devices for elastic fluids, mechanical equipment, etc., can solve high noise, unreasonable fan and system matching, and high power consumption problems, to achieve the effect of smooth gas flow, reduced leakage, and increased air volume
Active Publication Date: 2017-08-29
HAIER GRP CORP +1
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Problems solved by technology
However, the result of this is that although the demand for air volume can be met, the matching between the fan and the system is not very reasonable, so there are disadvantages such as high power consumption and high noise of the system as a whole to a certain extent.
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[0032] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention. Therefore, structural or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.
[0033] As is well known to those skilled in the art, a refrigerator generally includes an outer shell, an inner container disposed inside the outer shell, and a heat insulating layer arranged between the outer shell and the inner container. A plurality of storage rooms are usually formed inside the liner, and they are separated by partitions. Storage room can be refrigerator room, also can be freezer room.
[0034] figure 1 Shown is a specific embodiment of the centrifugal fan system of the present invention. The centrifugal fan system 1 includes a motor 20 and a centrifugal fan 30 . The front end of the motor 2...
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The invention provides a centrifugal fan system used for an air cooling refrigerator. The centrifugal fan system includes a motor having a motor shaft, and a centrifugal fan. The centrifugal fan includes a hub and a plurality of blades. The hub is provided with a central shaft which can cooperate with the motor shaft so as to be driven to rotate. The plurality of blades are fixed on the hub and are distributed in the circumferential direction of the hub. The distance from the central shaft of the hub to the radial inner end edges of the plurality of blades is R1, and the distance from the central shaft of the hub to the radial outer end edges of the plurality of blades is R2. The ratio of R1 to R2 is between 0.55 and 0.60. The centrifugal fan system with the above design can increase the actual variable air volumes for storage chambers of the air cooling refrigerator, and is capable of carrying out rapid cooling, so that the start-up frequency of a compressor can be reduced, thereby saving electric energy and reducing noise.
Description
technical field [0001] The invention belongs to the technical field of home appliances, and in particular relates to a centrifugal fan system for an air-cooled refrigerator and an air-cooled refrigerator using the centrifugal fan system. Background technique [0002] The principle of air-cooled refrigerators is to use air for cooling. When high-temperature air flows through the built-in evaporator, due to the high temperature of the air and the low temperature of the evaporator, the two directly exchange heat, and the temperature of the air will drop. Cool air is blown into the storage compartment inside the refrigerator by a fan system. The air-cooled refrigerator uses this continuous circulation method to reduce the temperature in the storage room of the refrigerator. [0003] The air-cooled refrigerator generally includes an outer shell and an inner container, and a storage room for storing food, such as a refrigerator room and a freezer room, is formed in the inner bag....
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IPC IPC(8): F04D25/08F04D29/30F04D29/42
Inventor 张如存杨发林张奎
Owner HAIER GRP CORP