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A fan structure capable of forming an artificial tornado and a range hood

A technology of artificial tornado and range hood, which is applied in the direction of oil fume removal, machines/engines, mechanical equipment, etc. It can solve the problems of many added parts, weak tornado effect, and large noise, so as to simplify the structure, improve the suction and exhaust effect, reduce the volume effect

Active Publication Date: 2018-11-06
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are usually two methods of tornado devices for range hoods: one is to install at least two additional fans, one for blowing and the other for blowing air; The interior space of the machine, the tornado effect is weak
Then, inject air into the original air duct of the range hood through the injector, use the jet air to drive the oil fume upward, and cooperate with the centrifugal fan; this structure has high energy consumption and high noise

Method used

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  • A fan structure capable of forming an artificial tornado and a range hood
  • A fan structure capable of forming an artificial tornado and a range hood
  • A fan structure capable of forming an artificial tornado and a range hood

Examples

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Embodiment 2

[0051] Such as Figure 7 Shown, in the blower fan structure that can form artificial tornado of the present embodiment:

[0052] An intermediate sleeve 7 is also provided between the first sleeve 4 and the second sleeve 5. The intermediate sleeve 7 is accommodated in the air duct 14 and is located below the second fan blade 3. The intermediate sleeve 7 is fixed on the support 41 on.

[0053] A first air outlet 81 is formed between the second sleeve 5 and the lower port of the intermediate sleeve 7, and a second air outlet 82 is formed between the first sleeve 4 and the lower port of the intermediate sleeve 7;

[0054] The included angle β of the air supply direction of the second air outlet 82 relative to the vertical line is smaller than the included angle α of the first air outlet 81 relative to the vertical line.

[0055] The included angle α is 40°, the included angle β is 30°, and the α-β is 10°.

[0056] The upper port area of ​​the second sleeve 5 is smaller than the l...

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Abstract

The invention relates to a fan structure capable of forming artificial tornado and a range hood. The fan structure comprises a motor, and an output shaft of the motor is connected with a first fan blade. The fan structure is characterized in that the outer side of the first fan blade is coaxially driven by and is connected with a second fan blade, and the rotation direction of the first fan blade is opposite to that of the second fan blade; the first fan blade is accommodated in a first sleeve, or the first fan blade is arranged on a port of the first sleeve; the outside of the first sleeve is sleeved by a second sleeve; and the second fan blade is accommodated in an air flue between the first sleeve and the second sleeve, or the second fan blade is arranged on a port of the air flue. By using the fan structure, the structure of a tornado device is greatly simplified, the volume of the tornado device is reduced, and the tornado effect is good.

Description

technical field [0001] The invention relates to an axial flow fan, in particular to a fan structure capable of forming an artificial tornado and a range hood. Background technique [0002] In order to improve the suction and exhaust effect of the range hood, people have developed an artificial tornado device to assist the conventional centrifugal fan in sucking and exhausting the range hood. At present, there are usually two methods of tornado devices for range hoods: one is to install at least two additional fans, one for blowing and the other for blowing air; The internal space of the machine, the tornado effect is weak. The second is to inject air into the original air duct of the range hood through the injector, and use the jet air to drive the oil fume upward, and cooperate with the centrifugal fan; this structure has high energy consumption and high noise. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20F04D25/08
CPCF04D25/08F24C15/20
Inventor 贾博贤孙佳琪黄鹏李年平李晓强王军元茅忠群诸永定
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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