Chassis having reduced acoustic noise and electromagnetic emissions and method of cooling components within a chassis
AssigneeAgilent Technologies, Inc.
InventorGuy R. Wagner
Life of this patent
Estimating the term…
Abstract
A chassis for housing components includes a shell having an intake duct and an exhaust duct. The intake duct is coupled to an intake port for directing cooling air from the intake port into the chassis, and the exhaust duct is coupled to an exhaust port for directing cooling air out of the chassis. The intake duct and the exhaust duct include active and/or passive noise attenuating features for attenuating noise generated within the chassis, which allows the chassis to operate more quietly. The ducts are also dimensioned to attenuate electromagnetic radiation generated within the chassis, which prevents the escape of electromagnetic radiation from the chassis.
Claims19
A chassis for housing components, the chassis comprising:
- a shell;
- an intake port in the shell;
- an intake duct in fluid communication with the intake port;
- an exhaust port in the shell;
- an exhaust duct in fluid communication with the intake duct and in fluid communication with the exhaust port, at least one of the intake duct and the exhaust duct including a noise attenuating feature, the noise attenuating feature attenuating acoustic noise generated within the chassis;
- and
- at least one air moving device in fluid communication with the intake port and the exhaust port and capable of moving air from the intake port through the chassis to the exhaust port to cool components housed in the chassis.
A chassis for housing components, the chassis comprising:
- a shell;
- an intake port in the shell;
- an intake duct in fluid communication with and disposed to receive a flow of cooling air from the intake port;
- an exhaust port in the shell in fluid communication with the intake duct;
- an exhaust duct disposed in fluid communication with the intake duct and the exhaust port, the exhaust duct disposed to direct a flow of air from an interior of the chassis to the exhaust port, at least one of the intake duct and the exhaust duct having a cross sectional area and a length selected so as to attenuate selected frequencies of electromagnetic radiation generated within the chassis;
- and
- at least one air moving device in fluid communication with the intake port and the exhaust port and capable of moving air through the chassis to cool components housed in the chassis.
A method of cooling components within a chassis having a shell, an intake port, an intake duct, an exhaust duct, and an exhaust port, the method comprising:
- drawing air from outside of the chassis through the intake port into the intake duct using at least one air moving device;
- passing the air over components disposed within the chassis;
- drawing air through the exhaust duct using the at least one air moving device, at least one of the intake duct and the exhaust duct including a noise attenuating feature;
- attenuating acoustic noise generated within the chassis using the noise attenuating feature;
- and
- passing the air from the exhaust duct through the exhaust port to outside of the chassis.
Dependencies are inferred from the claim text.