Fan module

Patent metadata

Field	Value
Publication number	US-11268535-B2
Application number	US-202017006955-A
Country	US
Kind code	B2
Filing date	Aug 31, 2020
Priority date	Sep 3, 2019
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A fan module includes a hub, a first body and a second body. The hub is configured to rotate along a central axis. The first body is connected to an outer wall of the hub. The second body is sleeved on the outer wall of the hub. The second body includes a plurality of ribs. The ribs are disposed on an inner wall of the second body and abut against the outer wall of the hub.

First claim

What is claimed is:

1. A fan module, comprising:
a hub, configured to rotate along a central axis;
a first body, connected to an outer wall of the hub; and
a second body, sleeved on the outer wall of the hub, wherein the second body comprises a plurality of ribs disposed on an inner wall of the second body and abutting against the outer wall of the hub, wherein the inner wall of the second body has a plurality of sections, each of the sections is located between two of the ribs and is spaced apart from the outer wall of the hub, such that a gap is created between the inner wall of the second body and the outer wall of the hub.

2. The fan module according to claim 1 , wherein on a cross section perpendicular to the central axis, distances from the ribs to the central axis are equal to each other.

3. The fan module according to claim 1 , wherein the first body comprises a first alignment portion disposed on a first surface of the first body facing the second body, the second body further comprises a second alignment portion disposed on a second surface of the second body facing the first body, and the first alignment portion and the second alignment portion mutually embed with each other.

4. The fan module according to claim 3 , wherein one of the first alignment portion and the second alignment portion comprises a first groove and two first protrusions, the first groove locates between the two first protrusions, the other of the first alignment portion and the second alignment portion comprises two second grooves and a second protrusion, and the second protrusion locates between the two second grooves, wherein the first groove is embedded with the second protrusion, and the two first protrusions are embedded with the two second grooves.

5. The fan module according to claim 1 , wherein the first body comprises a plurality of bosses disposed on a surface of the first body facing the second body and protruding toward the second body, each of the bosses comprises a top surface, and the top surfaces are coplanar and abut against the second body.

6. The fan module according to claim 1 , wherein the second body further comprises a plurality of bosses disposed on a surface of the second body facing the first body and protruding toward the first body, each of the bosses comprises a top surface, and the top surfaces are coplanar and abut against the first body.

7. The fan module according to claim 1 , wherein the first body comprises a first boss disposed on a first surface of the first body facing the second body and protruding toward the second body, the second body further comprises a second boss disposed on a second surface of the second body facing the first body and protruding toward the first body, and the first boss abuts against the second boss.

8. The fan module according to claim 1 , wherein the fan module further comprises a rotating shaft, and the rotating shaft is integrally connected to the hub.

9. The fan module according to claim 1 , wherein the first body and the second body respectively comprise a plurality of blades, and the blades of the first body and the second body are alternately arranged around the central axis.

10. The fan module according to claim 1 , wherein the first body and the second body respectively comprise a plurality of blades, and the blades of the second body are aligned with the corresponding blades of the first body in a direction parallel to the central axis.

Assignees

• Asustek Comp Inc

Inventors

• Lin Hsin-Chen
• Chiou Ing-Jer

Classifications

• F04D29/626

  Mounting or removal of fans · CPC title

• F04D17/16

  for displacing without appreciable compression · CPC title

• F05D2260/36

  by a form fit connection, e.g. by interlocking · CPC title

• F04D29/281 Primary

  for fans or blowers · CPC title

• F04D29/624

  especially adapted for elastic fluid pumps · CPC title