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Centrifugal fan blade, fan and air conditioner indoor unit

A technology of centrifugal blades and blowers, which is applied in air-conditioning systems, machines/engines, mechanical equipment, etc. It can solve the problems of low airflow efficiency and achieve the effects of improving airflow conditions, increasing airflow, and enhancing workability

Pending Publication Date: 2021-09-24
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a centrifugal fan blade, a fan and an air conditioner indoor unit, so as to solve the technical problem that the centrifugal fan blade in the prior art has low working efficiency on the airflow

Method used

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  • Centrifugal fan blade, fan and air conditioner indoor unit
  • Centrifugal fan blade, fan and air conditioner indoor unit
  • Centrifugal fan blade, fan and air conditioner indoor unit

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] Such as Figure 1 to Figure 8 As shown, Embodiment 1 of the present invention provides a centrifugal fan blade 10, the centrifugal fan blade 10 includes a bottom plate 11 and blades 12, there are a plurality of blades 12, and the plurality of blades 12 are arranged at intervals along the periphery of the bottom plate 11 to form a ring structure. Wherein, the blade 12 has an inlet section 121 and an outlet section 122 connected to each other. The inlet section 121 is an arc-shaped structure. The inlet end is surrounded by a plurality of inlet ends to form an inner ring. Specifically, the inlet section 121 and the outlet section 122 in this embodiment are arc-shaped structures, and the ...

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PUM

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Abstract

The invention provides a centrifugal fan blade, a fan and an air conditioner indoor unit. The centrifugal fan blade comprises a bottom plate and a plurality of blade bodies, and the multiple blade bodies are arranged along the periphery of the bottom plate at intervals to define an annular structure. Each blade body is provided with an inlet section and an outlet section which are mutually connected, wherein the outlet section is located on the side, close to the edge of the bottom plate, of the inlet section, the inlet section and the outlet section are each of an arc-shaped structure, a connecting end is formed at the joint of the inlet section and the outlet section, the tangent line of the inlet section at the connecting end is L5, the tangent line of the outlet section at the connecting end is L6, and the included angle gamma between the L5 and the L6 is larger than or equal to 160 degrees and smaller than or equal to 165 degrees. By means of the provided technical scheme, the technical problem that in the prior art, a centrifugal fan blade is low in airflow working efficiency can be solved.

Description

technical field [0001] The invention relates to the technical field of centrifugal fan blades, in particular to a centrifugal fan blade, a fan and an air conditioner indoor unit. Background technique [0002] At present, centrifugal fan blades are widely used in various air-conditioning devices, especially in dehumidifiers, air purifiers, and air-conditioning cabinets. Centrifugal blades, volutes, and motors constitute a complete fan, in which the centrifugal blades are the most important part of the work. When the motor drives the centrifugal blades to rotate at high speed, the air in the volute is thrown out of the centrifugal blades under the action of centrifugal force. And it is pushed out of the centrifugal fan through the air outlet of the volute, and at this time, the negative pressure is generated around the centrifugal fan blade due to the air being thrown out, so that the external air is continuously replenished from the air inlet of the volute. [0003] However,...

Claims

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Application Information

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IPC IPC(8): F04D29/30F04D29/28F04D29/66F04D25/08F04D17/08F24F1/0022
CPCF04D29/30F04D29/281F04D29/666F04D29/667F04D25/08F04D17/08F24F1/0022
Inventor 刘雷明梁玉林邹云辉林金煌
Owner GREE ELECTRIC APPLIANCES INC