Centrifugal fan blade unit, air conditioner and fan system
A technology of centrifugal blades and blades, which is applied in the field of air-conditioning devices and fan systems, and the field of centrifugal blades, which can solve the problems of large energy loss and poor air flow into the air duct, and achieve low cost, simple structure, and reduced energy loss. Effect
Inactive Publication Date: 2017-01-25
GREE ELECTRIC APPLIANCES INC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] The present invention provides a centrifugal fan blade, an air conditioner and a fan system to solve the problems of the prior art that the air cannot enter the air duct due to air diffusion and the energy loss is large
Method used
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[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0027] Such as Figures 5 to 9 As shown, the centrifugal fan blade in the present invention includes: a front shroud 1 , a rear shroud 2 and a plurality of blades 3 . Wherein, the plurality of blades 3 are located between the front cover disk 1 and the rear cover disk 2, one side of the blade 3 is connected with the front cover disk 1, and the other side is connected with the rear cover disk 2, and the plurality of blades 3 are in the form of Arranged in a spiral shape in a circle. The outer edges of the plurality of blades 3 are located on the same circle, that is, the circle forms a circular envelope of the outer edges of the plurality of blades 3, particularly, the outer diameter of the front cover disk 1 in the present invention d1 is greater ...
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Abstract
The invention provides a centrifugal fan blade, an air conditioner and a fan system. The centrifugal blade includes a front cover disk, a rear cover disk and a plurality of blades, wherein one side of the blade is connected with the front cover disk, and the other side is connected with the rear cover disk, and it is characterized in that the outer edges of the plurality of blades constitute The diameter of the circular envelope is smaller than the outer diameter of the front cover. The present invention increases the outer peripheral diameter of the front shroud, making it larger than the outer peripheral diameter of the blades, thus lengthening the guiding distance of the blades to the airflow, thereby strengthening the guiding effect on the airflow of the blades, and avoiding that the air cannot enter the air duct well due to the diffusion of the airflow , thereby reducing energy loss, and has the characteristics of simple structure and low cost.
Description
technical field [0001] The invention relates to the field of air conditioning, in particular to a centrifugal fan blade, an air conditioner and a fan system. Background technique [0002] Centrifugal fan blades are commonly used in air-conditioning indoor unit fan systems. figure 1 and figure 2 A schematic structural view of a centrifugal fan used in an air conditioner indoor unit in the prior art is shown, and the centrifugal fan includes a front cover disk 1 , a rear cover disk 2 and blades 3 . Among them, such as figure 2 As shown, the outer peripheral diameter d1 of the front shroud 1 is equal to the outer peripheral diameter d2 of the blade 3 . When the wind blows out from the outer edge of the blade 3, due to the loss of the guide effect of the blade 3 and the sudden increase in the space, it is easy to cause the airflow to diffuse and flow around. This phenomenon is most obvious when the blade 3 is close to the front cover 1 disk. [0003] Therefore, the air dif...
Claims
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Login to View More IPC IPC(8): F04D29/30F04D29/44
CPCF04D29/30F04D29/441
Inventor 李建建
Owner GREE ELECTRIC APPLIANCES INC