Title:
IMPELLER USED IN FAN-TYPE GAS WATER HEATER
Document Type and Number:
WIPO Patent Application WO/2021/196711
Kind Code:
A1
Abstract:
An impeller used in a fan-type gas water heater. The impeller is provided with an upper plate (1), blades (2), a bottom plate (3), two first fixing parts (4) and two second fixing parts (5), wherein a blade main body (21) is in the shape of a cuboid or a sector ring cylinder; in an assembled state, a lower surface (11) of the upper plate faces downward, the blades (2) are placed in an upper plate clamping groove (14), one first fixing part (4) is placed in a fourth fixing groove (252) and a second inclined groove (132) to fix the upper plate (1) and the blades (2), one second fixing part (5) is placed in a third fixing groove (242) and a first inclined groove (131) to further fix the upper plate (1) and the blades (2), an upper surface (31) of the bottom plate faces upward, the blades (2) are placed in a bottom plate clamping groove (34), the other first fixing part (4) is placed in a second fixing groove (232) and a second inclined groove (332) and fixes the bottom plate (3) and the blades (2), and the other second fixing part (5) is placed in a first fixing groove (222) and a first inclined groove (331) and further fixes the bottom plate (3) and the blades (2). The impeller has the following main beneficial effects: the assembly efficiency is higher, the universality of the upper plate and the bottom plate is stronger, assembly is more convenient, and the cost is lower.
Inventors:
XU LIJUN (CN)
Application Number:
PCT/CN2020/134836
Publication Date:
October 07, 2021
Filing Date:
December 09, 2020
Export Citation:
Assignee:
CHANGSHU SIJIADENG ELECTRIC APPLIANCE CO LTD (CN)
International Classes:
F04D29/28; F04D29/30
Foreign References:
| CN111441986A | 2020-07-24 | |||
| CN211852268U | 2020-11-03 | |||
| CN207848023U | 2018-09-11 | |||
| CN208417053U | 2019-01-22 | |||
| CN105745451A | 2016-07-06 | |||
| CN105090111A | 2015-11-25 | |||
| CN108980099A | 2018-12-11 | |||
| JP2010236495A | 2010-10-21 |
Attorney, Agent or Firm:
SUZHOU DAOSI IP PARTNERS (CN)
Download PDF:
Previous Patent: DESIGN METHOD FOR CYLINDER SLEEVE WITH RELIEF WINDOWS, AND STRUCTURE THEREOF
Next Patent: IMPELLER HAVING IMPROVED STRUCTURE
Next Patent: IMPELLER HAVING IMPROVED STRUCTURE