Impeller, fan and method for manufacturing fan blade

Patent metadata

Field	Value
Publication number	US-2019162201-A1
Application number	US-201816135526-A
Country	US
Kind code	A1
Filing date	Sep 19, 2018
Priority date	Nov 24, 2017
Publication date	May 30, 2019
Grant date	—

Abstract

An impeller includes a hub and a plurality of blade plates. The hub includes a hub body and a plurality of installation portions disposed on the hub body. Each blade plate includes a plurality of fan blades and a folding portion. The folding portion is connected to one end of each fan blade. The folding portions are respectively installed at the installation portions.

First claim

What is claimed is:

1 . An impeller, comprising:
a hub comprising:
a hub body, and
a plurality of installation portions disposed on the hub body; and
a plurality of blade plates, wherein each of the blade plates comprises:
a plurality of fan blades, and
a folding portion connected to one end of each of the fan blades, wherein the folding portions are respectively installed at the installation portions.

2 . The impeller according to claim 1 , wherein the blade plates are metal plates.

3 . The impeller according to claim 1 , wherein each of the blade plates is folded along the folding portion so that an included angle is formed between the fan blades.

4 . The impeller according to claim 1 , wherein each of the installation portions is a recess and the folding portions are inserted into the installation portions, respectively.

5 . The impeller according to claim 4 , wherein each of the recesses is gradually shrunk from an edge of the hub body toward a center of the hub body, two of the fan blades of the blade plate corresponding to the recess contact against two sides of the recess, and the folding portion contacts against a deepest side of the recess.

6 . The impeller according to claim 1 , further comprising:
a hub cover covering the installation portions and the folding portions and connecting to the hub body and the folding portions.

7 . The impeller according to claim 1 , wherein shapes and sizes of the fan blades of each of the blade plates are the same.

8 . The impeller according to claim 1 , wherein the blade plate comprises an even number of the fan blades.

9 . A fan, comprising:
an impeller comprising a hub and a plurality of blade plates, wherein the hub comprises a hub body and a plurality of installation portions disposed on the hub body, each of the blade plates comprises a plurality of fan blades and a folding portion connected to one end of each of the fan blades, and the folding portions are respectively installed at the installation portions; and a motor assembled with the impeller.

10 . A method for manufacturing fan blades, comprising:
cutting a metal plate to obtain a blade plate, wherein the blade plate comprises a plurality of fan blades and a folding portion, and the folding portion is connected to one end of each of the fan blades; pressing the fan blades to form the curved fan blades; and folding the blade plate along the folding portion.

11 . The method according to claim 10 , wherein a cutlery is used to cut the metal plate to obtain the blade plate.

12 . The method according to claim 10 , wherein an upper punch mold and a lower punch mold are provided opposite to each other and used to press the fan blades to form the curved fan blades.

13 . The method according to claim 10 , wherein the blade plates are folded along the folding portion, so that an included angle is formed between the fan blades.

Assignees

• Pegatron Corp

Inventors

• Huang Chao-Kai
• Yang Tzu-Ming
• Chiu Yu- Hao
• Hsiao Ming-Yang

Classifications

• F05D2230/51

  in a modular way, e.g. using several identical or complementary parts or features · CPC title

• F04D29/388

  characterised by construction · CPC title

• F05D2230/10

  by removing material · CPC title

• F04D25/0613

  the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator · CPC title

• F04D29/34 Primary

  Blade mountings {(for axial flow compressors F04D29/322)} · CPC title