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Diffuser, air supply device and dust collector

A diffuser and hood technology, applied in pump devices, components of pumping devices for elastic fluids, machines/engines, etc., can solve problems such as large airflow loss

Active Publication Date: 2021-07-06
GUANGDONG WELLING ELECTRIC MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a diffuser, aiming to solve the technical problem of large flow loss of the air flow when passing through the diffuser in the prior art

Method used

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  • Diffuser, air supply device and dust collector
  • Diffuser, air supply device and dust collector
  • Diffuser, air supply device and dust collector

Examples

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Embodiment Construction

[0039] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. Attached below by reference Figure 1~5 The described embodiments are exemplary and are intended for the purpose of explaining the application and are not to be construed as limiting the application.

[0040] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than Nothing to indicate or imply that a referenced de...

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Abstract

The invention belongs to the technical field of cleaning equipment, and particularly relates to a diffuser, an air supply device and a dust collector. The diffuser comprises a base ring piece and multiple rows of stationary blades, wherein all the rows of stationary blades are sequentially arranged on the outer ring wall of the base ring piece in the axial direction of the base ring piece, and the stationary blades are all arranged in the circumferential direction of the base ring piece. The two opposite sides of the base ring piece in the axial direction of the base ring piece are the air inlet side and the air outlet side correspondingly, and from the air inlet side to the air outlet side, the chord length of any one row of stationary blades is larger than or equal to the chord length of the next row of stationary blades adjacent to the row of stationary blades. The stationary blades are provided with installation angles, and from the air inlet side to the air outlet side, the installation angles of any one row of stationary blades are smaller than or equal to the installation angles of the next row of stationary blades adjacent to the row of stator blades. Therefore, the multiple rows of stationary blades can weaken the flow separation phenomenon generated by the airflow step by step, and the flow loss generated when the airflow flows through the diffuser is obviously reduced. In this way, under the guide action of each row of stationary blades, speed reduction and pressurization of the air flow can be smoothly realized on the premise of not generating large flow loss.

Description

technical field [0001] The application belongs to the technical field of cleaning equipment, and in particular relates to a diffuser, an air supply device and a vacuum cleaner. Background technique [0002] An air supply device is usually installed in the vacuum cleaner, and a diffuser is arranged in the air supply device to convert the kinetic energy of the airflow passing through the air supply device into pressure energy, thereby reducing the flow loss of the airflow. The diffuser is usually equipped with stator blades to guide and pressurize the airflow. [0003] However, the existing arrangement of stator vanes still cannot fully realize the conversion between the kinetic energy and the pressure energy of the airflow passing through the diffuser, which will result in a large flow loss when the airflow passes through the diffuser. Contents of the invention [0004] The purpose of the embodiments of the present application is to provide a diffuser, aiming at solving th...

Claims

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Application Information

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IPC IPC(8): F04D29/44F04D25/08
CPCF04D25/08F04D29/444
Inventor 张伟蒋婷婷周亚运杨帆吕琢
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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