Air circulation system

Patent metadata

Field	Value
Publication number	US-2016201972-A1
Application number	US-201414901305-A
Country	US
Kind code	A1
Filing date	Jun 28, 2014
Priority date	Jun 28, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The present invention refers to an air circulation system, particularly intended to be applied in household appliances of refrigerator type, comprising the innovative technical and functional features, which are capable of improving air flow circulation inside these apparatuses as well as optimizing the space occupied by the fan. More preferably, the present invention refers to an air flow circulation system comprising a refrigerating equipment (R) containing at least one air passage channel (A), within which there is a radial fan ( 1 ) disposed in a inclined form at an angle (a) so as to divide said air passage channel (A) in a suction duct ( 2 ) and sprinkling duct ( 3 ).

First claim

1 - 8 . (canceled)

9 . Air flow circulation system, comprising a refrigerating equipment (R) provided with at least an air passage channel (A), within which a fan ( 1 ) is disposed, said system wherein said fan ( 1 ) is of radial type and inclined at an angle (α), dividing said air passage channel (A) into two ducts, a suction duct ( 2 ) and a sprinkling duct ( 3 ), the system being characterized in that:
a wall of an outer box (E) of said refrigerating equipment (R) is provided with at least one recess ( 4 ) aligned with an inlet ( 5 ) of said fan ( 1 );
the fan ( 1 ) is secured inside the air passage channel (A) by fixing its structure ( 6 ), wherein a lower end ( 7 ) is secured only onto a wall of an inner box (C) while an upper end ( 8 ) is adjustably secured between the walls of said inner box (C) and outer box (E).

10 . Air flow circulation system, in accordance with claim 9 , characterized in that said structure ( 6 ) of fan ( 1 ) has a configuration whose motor ( 9 ) is disposed in a rear region of rotor ( 10 ) of the fan ( 1 ).

11 . Air flow circulation system, in accordance with claim 9 , characterized in that said structure ( 6 ) of fan ( 1 ) comprises a configuration whose motor ( 9 ) is disposed in a front region of said rotor ( 10 ) of fan ( 1 ).

12 . Air flow circulation system, in accordance with claim 9 , characterized in that said structure ( 6 ) of fan ( 1 ) comprises a configuration whose motor ( 9 ) is arranged in the center of the rotor ( 10 ) of fan ( 1 ).

13 . Air flow circulation system, in accordance with claim 9 , characterized in that said suction duct ( 2 ) comprise an equivalent proportion ratio ranging from 2 to 3,5 times the size of the sprinkling duct ( 3 ).

14 . Air flow circulation system, in accordance with claim 9 , characterized in that said angle (α) varies between 10° and 30°, and more preferably around 15°.

Assignees

• Whirlpool Sa

Inventors

• Sigwalt Rodrigo Alexandre
• Ferreira Luiz Afranio Alves
• Santos Ederson Adriano Dos
• Schmidt Julio Cesar

Classifications

• F25D23/065

  Details · CPC title

• F25D17/062 Primary

  in household refrigerators · CPC title

• F25D17/06 Primary

  by forced circulation · CPC title

• F25D2500/02

  Geometry problems · CPC title

• F25D2317/0683

  the fans not of the axial type · CPC title