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A kind of forward curved impeller, centrifugal fan and air conditioner

A technology of forward curved blades and curved blades, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problem of low eddy current noise, achieve the effect of low eddy current noise, ensure structural strength, and suppress airflow separation

Active Publication Date: 2022-01-25
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the invention is how to make the air flow more smooth, the air volume is larger and the eddy current noise is smaller

Method used

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  • A kind of forward curved impeller, centrifugal fan and air conditioner
  • A kind of forward curved impeller, centrifugal fan and air conditioner
  • A kind of forward curved impeller, centrifugal fan and air conditioner

Examples

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no. 1 example

[0046] see in conjunction Figure 1 to Figure 4 (The curve with arrows in the figure indicates the direction of the air flow). This embodiment provides a centrifugal fan 10 with large air volume, low noise and smooth air flow.

[0047] The centrifugal fan 10 provided in this embodiment includes a forward curved impeller 100 and a volute 200, the forward curved impeller 100 is accommodated in the volute 200, and the volute 200 is provided with an air inlet 211 and an air outlet 213, and the forward curved impeller 100 is in transmission connection with an external drive motor, and is used for accelerating and guiding the air from the air inlet 211 to the air outlet 213 .

[0048] The forward-curved impeller 100 includes a hub 110, a disc 130 and a plurality of forward-curved blades 150, the hub 110 is arranged at the center of the disc 130, and the plurality of forward-curved blades 150 are divergently distributed along the circumference of the hub 110 and spaced apart from the...

no. 2 example

[0074]This embodiment provides an air conditioner, including an air conditioner body and a centrifugal fan 10, the centrifugal fan 10 is arranged in the air conditioner body, and the basic structure, principle and technical effect of the centrifugal fan 10 are the same as those of the first embodiment, for brief For the description, for parts not mentioned in this embodiment, reference may be made to the corresponding content in the first embodiment.

[0075] The centrifugal fan 10 includes a volute 200 and a forward-curved impeller 100. The forward-curved impeller 100 is accommodated in the volute 200, and the volute 200 is provided with an air inlet 211 and an air outlet 213. The forward-curved impeller 100 and an external drive motor The transmission connection is used to guide the air from the air inlet 211 to the air outlet 213 at an accelerated rate. The forward-curved impeller 100 includes a hub 110, a disc 130 and a plurality of forward-curved blades 150, the hub 110 i...

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Abstract

The invention provides a forward-curved impeller, a centrifugal fan and an air conditioner, and relates to the technical field of air conditioning. The forward-curved impeller includes a hub, a disc and a plurality of forward-curved blades. Distributed at intervals along the circumference of the hub in a divergent shape and connected to the wheel disc, an air flow channel is formed between two adjacent forward curved blades, the end of the air flow channel close to the hub is the air inlet end, and the end far away from the hub is the air outlet end , each forward curved blade is provided with a guide slot near the air outlet end. In the present invention, the guide gap is provided near the air outlet end of the forward-curved blade, so that two adjacent air passages are connected, and the airflow on one side of the forward-curved impeller blows off the low-energy airflow on the other side through the gap, thereby suppressing the airflow. Separation reduces the size of the separation zone, reduces the vortex in the separation zone, and makes the air flow more smooth. Compared with the prior art, the forward-curved impeller provided by the present invention has smoother air flow, larger air volume, and less eddy noise.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a forward curved impeller, a centrifugal fan and an air conditioner. Background technique [0002] Centrifugal fans are widely used in home appliances, and centrifugal fans generally use forward-curved blades. When rotating at high speed, it is easy to cause problems such as poor air flow, small air volume, and large eddy current noise. Contents of the invention [0003] The problem solved by the invention is how to make the airflow flow more smoothly, the air volume is larger and the eddy current noise is smaller. [0004] In order to solve the above problems, the present invention adopts the following technical solutions. [0005] In one aspect, the present invention provides a forward-curved impeller, including a hub, a disc and a plurality of forward-curved blades, the hub is arranged at the center of the disc, and the plurality of forward-curved blades are distri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/30F04D29/28F04D29/66F04D29/68
CPCF04D29/30F04D29/281F04D29/666F04D29/681F04D29/682F04D29/684
Inventor 刘佳薇鲁旻蒋力
Owner NINGBO AUX ELECTRIC