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US 11,994,144 B2Granted
Blower system with an inner axial fan blade set and an outer centrifugal fan blade set
AssigneeDell Products L.P.
InventorQinghong He
Life of this patent
Estimating the term…
Abstract
An information handling system may include a processor, a memory, and a power source operatively coupled in a base chassis; a blower system including a shaft operatively coupled to a blower motor; a hub operatively coupled to the shaft; an outer centrifugal blower blade set forming a monolithic piece with an inner axial blower blade set and hub, the inner axial blower blade set to increase the redirection of an incoming airflow via an inlet in a blower housing to the outer centrifugal blower blade set and air outlet in the blower housing, the outlet airflow direction in a plane of rotation of the blower system.
Claims20
An information handling system, comprising:
- a processor, a memory, and a power source operatively coupled in a base chassis;
- a blower system including:
- a shaft operatively coupled to a blower motor;
- a hub operatively coupled to the shaft;
- a blower housing having an air inlet a first wall of the blower housing and closed on the opposite side of the blower housing;
- and
- an impeller with an outer centrifugal blower blade set forming a monolithic piece with an inner axial blower blade set and hub, where the outer centrifugal blades of the outer centrifugal blower blade set join the hub below inner axial blades of the inner axial blower blade set operatively coupled to the hub;
- and
- the inner axial blower blade set is set into the outer centrifugal blower blade set such that the bottom of the inner axial blower blade set axially overlaps the outer centrifugal blower blade set at a junction with the hub above the bottom of the hub to redirect an incoming airflow via the air inlet in the blower housing to the outer centrifugal blower blade set and air outlet in the blower housing, where an inlet flow direction is orthogonal to the plane of rotation of the blower system into the inlet in the blower housing and the airflow is redirected to an outlet airflow direction out of a side air outlet in the plane of rotation of the blower system.
6 more elements
An information handling system, comprising:
- a processor, a memory, a thermal cooling system, and a power source operatively coupled to a base chassis;
- a blower system including:
- a shaft;
- a hub operatively coupled to the shaft;
- an impeller with an outer centrifugal blower blade set formed to the hub of the impeller and forming a monolithic piece with the hub;
- an inner axial blower blade set operatively coupled to the hub where the inner axial blower blade set is a separately formed piece nested into the outer centrifugal blower blade set such that the inner axial blower blade set is set into the outer centrifugal blower blade set such that the bottom of the inner axial blower blade set axially overlaps the outer centrifugal blower blade set at a junction on the hub, where the outer centrifugal blades of the outer centrifugal blower blade set join the hub below inner axial blades of the inner axial blower blade set operatively coupled to the hub;
- and
- the inner axial blower blade set is angled to increase the redirection of an incoming airflow to the outer centrifugal blower blade set within the impeller and an air outlet in a blower housing, where the outlet airflow direction is in a plane of rotation for the inner axial blower blade set and the outer centrifugal blower blade set.
5 more elements
A method of assembling an information handling system with a powered blower, comprising:
- operatively coupling a central processor, a memory, thermal cooling system, and a power source in an information handling system chassis;
- assembling a blower system formed by:
- molding an impeller with a plurality of inner axial blower blades of an inner axial blower blade set and an inner axial blower blade set ring to form an inner axial blower blade set;
- molding the impeller with a plurality of outer centrifugal blower blades of an outer centrifugal blower blade set to a central hub;
- and
- operatively coupling the inner axial blower blade set ring to the central hub via a spline such that the inner axial blower blade set is nested into the outer centrifugal blower blades such that the bottom of the inner axial blower blade set axially overlaps the outer centrifugal blower blade set on a junction with the hub to form the impeller, where the outer centrifugal blades of the outer centrifugal blower blade set join the hub below inner axial blades of the inner axial blower blade set operatively coupled to the hub;
- mounting the inner axial blower blade set, outer centrifugal blower blade set, and hub of the impeller to a shaft operatively coupled to a motor of the blower;
- forming a blower housing around the inner axial blower blade set and outer centrifugal blower blade set including any inlet in a top or bottom housing wall and an airflow outlet along a side of the blower housing;
- mounting the blower system in the information handling system chassis and operatively coupling the power source to a motor of the blower system;
- and
- operatively coupling a blower controller of the thermal cooling system to the power source and the motor to direct the activation of the blower system.
8 more elements
Dependencies are inferred from the claim text.