Unlock instant, AI-driven research and patent intelligence for your innovation.

A silent fan

A fan, silent technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as increasing energy consumption, reducing fan performance, etc., to achieve the effect of convenient installation and maintenance

Active Publication Date: 2015-10-07
FOSHAN CITY FOREST PURIFICATION TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current two methods have certain limitations, which will increase energy consumption or reduce the performance of the fan while reducing noise.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A silent fan
  • A silent fan
  • A silent fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] refer to figure 1 , figure 2 , a silent fan, including a motor 1 and a wind impeller 2 connected to the motor 1, wherein the type of the wind impeller 2 is not particularly limited, and the motor 1 can also adopt a suitable model according to needs. A cylindrical peripheral air duct 3 is provided around the motor 1, wherein a cover plate 4 is provided on the upper end of the cylindrical peripheral air duct 3, and an air inlet 41 is opened in the cover plate 4, so that the incoming air is blown in a concentrated manner. At the center of the windward impeller 2. An air guide ring 5 is arranged between the air inlet 41 and the wind impeller 2 , and the air guide ring 5 is used to further guide the inhaled air to the center of the wind impeller 2 . The cylindrical peripheral air channel 3 and the cover plate 4 are tightly connected to form a relatively sealed cavity, and only the air inlet 41 is for air circulation. At the same time, there is sufficient space between th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a silent fan which comprises a motor and a vane wheel connected with the motor. A cylindrical peripheral air flue is arranged around the motor, a cover plate is arranged at the upper end of the cylindrical peripheral air flue, an air inlet is formed in the cover plate, an air guide ring is arranged between the air inlet and the vane wheel, noise absorbing cotton is arranged on the inner side of the cylindrical peripheral air flue, an acoustic panel is arranged at the lower end of the cylindrical peripheral air flue, the acoustic panel is connected with the cylindrical peripheral air flue through a support and the fan is installed on the acoustic panel. Through reasonable structural improvement, particularly, the combination of the flow characteristic of air in the fan, and matching of the cylindrical peripheral air flue capable of absorbing noise and the acoustic panel at the position of an air outlet, the fan guides air to flow and meanwhile, achieves the silencing effect, the vane wheel of the fan does not need to be changed, the requirements for fan blades and a wind wheel are lowered, in addition, the motor can be directly installed on the acoustic panel, and therefore installation and maintenance of the fan are more convenient.

Description

technical field [0001] The invention relates to a fan, in particular to a silent fan. Background technique [0002] The fan is an indispensable key component of industrial equipment and household appliances. When working, the airflow enters the blade space from the fan inlet, and then driven by the blade, it forms wind to blow out to do work. At present, the main noise sources of the fan are: 1. The mechanical noise of the fan, including (1) the noise caused by the uneven wear of the impeller or the deformation of the parts due to the wind pressure, which makes the entire rotor unbalanced; (2) the bearing is running Finally, due to wear and tear, the noise generated by the interaction with the shaft; (3) the noise generated due to poor installation or loose connection of various parts; (4) the vibration generated by the high-speed rotation of the impeller, which causes the noise generated by a certain part of the body to resonate; 2. Motor noise Among them, the motor is an ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/40F04D29/66F04D29/60
Inventor 梁国巨
Owner FOSHAN CITY FOREST PURIFICATION TECH CO LTD