Air cooling refrigerator machine shell, air cooling refrigerator and air duct design method

Abstract

The invention discloses an air cooling refrigerator machine shell, an air cooling refrigerator and an air duct design method. The air cooling refrigerator machine shell comprises an air duct. The air duct comprises a plurality of channels. Each channel is used for leading air blown out of a centrifugal blower of the air cooling refrigerator to the corresponding air supply opening of the air cooling refrigerator. The channels are formed by a plurality of volute tongues in the air duct at intervals. Each volute tongue is provided with an end portion close to the centrifugal blower. The volute tongues comprise the first volute tongue, the second volute tongue and the third volute tongue which are sequentially adjacent to one another. The distance between the end of the first volute tongue and the center of a fan of the centrifugal blower, the distance between the end of the second volute tongue and the center of the fan of the centrifugal blower and the distance between the end of the third volute tongue and the center of the fan of the centrifugal blower are increased greatly so that the end of the first volute tongue, the end of the second volute tongue and the end of the third volute tongue can be located on the same volute molded line. By means of the technical scheme, the flow losses of the air flow in the air duct can be lowered, and the efficiency of the centrifugal blower in the air duct is improved.

Description

technical field [0001] The invention relates to the technical field of air-cooled refrigerators, in particular to a casing of an air-cooled refrigerator, an air-cooled refrigerator and an air duct design method. Background technique [0002] refer to figure 1 , figure 1 It is a schematic diagram of the air duct structure of an air-cooled refrigerator in the prior art. In the air duct 100 of this air-cooled refrigerator, a centrifugal fan 110 is provided, and the air duct 100 is provided with seven volute tongues 120 for dividing the air duct 100 into seven passages 130, each passage 130 is used for centrifugal fan 110. The air blown by the fan 110 is diverted to the corresponding air supply port (not shown), and sent to the cooling compartment of the air-cooled refrigerator through the corresponding air supply port, and the air supply ports are independent of each other. In this kind of air-cooled refrigerator, the specific position of the volute tongue 120 is usually des...

AI Technical Summary

Problems solved by technology

In this type of air-cooled refrigerator, the specific position of the volute tongue 120 is usually designed based on experience. In this way, the design of the specific position of the volute tongue 120 has strong subjective randomness, and the wind blown by the centrifugal fan 110 is difficult to be effectively diverted. Causes the efficiency of the centrifugal fan 110 to be low

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