Cooling fan suspension vibration filter
AssigneeDell Products L.P.
InventorsCorey D. Hartman, Jose A. Nava
Life of this patent
Estimating the term…
Abstract
An information handling system cooling fan has a vibration filter that tunes out predetermined fan vibration frequencies to reduce fan vibration transfer from the cooling fan to an information handling system chassis in a targeted frequency range. For example, a leaf spring and damper are biased between the cooling fan and a fan bay support so that stiffness of the spring attenuates selected vibration frequency ranges of the cooling fan bay subsystem, such as frequency ranges where the vibrations have the greatest amplitude or frequency ranges where the vibrations tend to damage other components of the information handling system.
Claims20
An information handling system comprising:
- a chassis;
- a processor disposed in the chassis and operable to process information;
- memory disposed in the chassis and interfaced with the processor to store the information;
- a cooling fan disposed in the chassis and operable to generate a cooling air flow over the processor;
- and
- a vibration filter disposed between the cooling fan and the chassis, the vibration filter operable to reduce transfer of vibration from the cooling fan to the chassis in a tuned frequency range.
A method for managing vibration of an information handling system cooling fan, the method comprising:
- powering the cooling fan in an information handling system chassis to generate a cooling airflow over one or more components;
- and
- filtering transfer between the cooling fan and the chassis of a predetermined range of vibration frequencies associated with powering the cooling fan, the predetermined range comprising a subset of less than all vibration frequencies associated with the power the cooling fan.
A cooling fan comprising:
- a housing;
- a fan disposed in the housing, the fan having a motor to turn a blade that creates a cooling airflow;
- a support operable to couple the housing to an information handling system;
- and
- a vibration filter disposed between the housing and the support to tune out transfer of predetermined vibration frequencies from the housing to the support.
Dependencies are inferred from the claim text.