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An impeller for a fan and a fan and a range hood using the impeller

A technology of impeller and fan, which is applied to the parts, application, and removal of oil fume of the elastic fluid pumping device. It can solve the problems of insufficient negative pressure, oil fume escape, and separation that cannot meet the actual needs, so as to improve the separation of oil and fat. The effect of increasing the air volume, increasing the air volume, and changing the natural frequency

Active Publication Date: 2021-02-23
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing impellers have the following problems: 1) When the airflow enters the interior of the multi-blade centrifugal fan impeller, the degree of separation cannot meet the actual needs; 2) The suction ports of traditional side suction range hoods are mainly concentrated in the middle and diffused through the filter. It often results in a place far away from the air inlet, where the negative pressure is not enough, and there will be oily smoke escaping

Method used

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  • An impeller for a fan and a fan and a range hood using the impeller
  • An impeller for a fan and a fan and a range hood using the impeller
  • An impeller for a fan and a fan and a range hood using the impeller

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] see figure 1 and figure 2 , an impeller for a fan, including a stationary impeller 1, a moving impeller 2, and a motion mechanism 3 for driving the moving impeller 2 to move. The impeller has a central axis X. The fan is a centrifugal fan.

[0030] The stationary impeller 1 includes a disk 11 and at least two first blades 12, the first blades 12 are arranged at intervals along the circumference of the disk 11, one end of the first blade 12 is connected and fixed with the disk 11, and the other end is used for connecting with the moving disk 11. The impeller 2 is connected. The disc 11 is perpendicular to the central axis X, and the first blades 12 are arranged around the central axis X and extend in the same direction as the central axis X.

[0031] The moving impeller 2 comprises at least two second blades 21, a first living hing...

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Abstract

The invention discloses an impeller for a fan. The impeller has a central axis, and comprises a static impeller; the static impeller comprises at least two first blades arranged around the central axis, and the first blades and the central axis extend in the same direction; the impeller is characterized in that the impeller further comprises a movable impeller comprising at least two second blades, and each second blade corresponds to each first blade; one ends of the second blades are connected with the first blades rotatably, and accordingly the second blades can rotated around the connection position with the first blades toward or far away from the central axis. The invention further discloses a fan and a range hood applying the above impeller, and a control method for the range hood.Through arrangement of the movable impeller and the static impeller which can be rotated relatively, a negative pressure zone can be incased through rotation of the impellers, and the air volume is increased; and the inherent frequency of the impellers is changed, and the grease separation degree is improved.

Description

technical field [0001] The invention relates to a power device, especially an impeller for a fan, a fan with the impeller, and a side suction range hood with the fan. Background technique [0002] Centrifugal fans, relying on the input mechanical energy, use the high-speed rotating impeller to accelerate the gas entering the impeller in the axial direction, then decelerate, change direction, flow out of the impeller radially, and finally exit through the air outlet of the volute. The multi-blade centrifugal fan has a high air volume and pressure, and a small impeller outlet diameter can achieve a large air volume and pressure, low speed and low noise. It is often used in range hoods, suction and exhaust and other fields. [0003] The performance of the impeller directly affects the performance of the range hood. Existing impellers mainly include single-layer and double-layer impellers. At present, the double-layer impeller is mainly composed of front and rear end rings, a m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/42F24C15/20
CPCF04D29/281F04D29/30F04D29/4206F24C15/20
Inventor 孙斌
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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