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Diffuser, air supply device and dust collector

A technology of air supply device and diffuser, which is applied in the fields of air supply device, vacuum cleaner and diffuser, and can solve problems such as flow 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 embodiments of the present application is to provide a diffuser, aiming to solve the technical problem of obvious flow loss in the prior art when the air flow passes through the diffuser

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

[0041] 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.

[0042] 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 which comprises a base ring piece and a plurality of stationary blades connected to the base ring piece. The stationary blades are arranged in the circumferential direction of the outer ring wall of the base ring piece, each stationary blade is provided with an installation angle, the angle value of the installation angles is kept unchanged from the head to the middle of each stationary blade, and the angle value of the installation angles is gradually increased from the middle to the tail of each stationary blade. A first outlet mounting angle is formed at the blade root of the tail part of each stationary blade, a second outlet mounting angle is formed at the blade tip of the tail part of each stationary blade, and the angle value of the first outlet mounting angle is larger than or equal to that of the corresponding second outlet mounting angle. From the head to the tail of each stationary blade, the chord length of the blade root of each stationary blade is larger than or equal to the chord length of the blade tip of the stationary blade. Therefore, the flow separation phenomenon of the airflow near the outer wall of the diffuser is effectively regulated, controlled and inhibited, the airflow flowing through the diffuser is effectively guided, and the flow loss of the airflow caused by flow separation is remarkably reduced.

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] With the improvement of people's living standards and the development of technology, vacuum cleaners, especially hand-held vacuum cleaners, are increasingly entering popular families. Air supply devices are arranged in the vacuum cleaners to realize the dust collection function of the vacuum cleaners. [0003] In the prior art, a diffuser is usually installed in the air supply device to improve the flow efficiency of the airflow in the air supply device. However, when the airflow flows through the diffuser, there will be a short-term deviation from the radial direction to the axial direction. A change in flow direction, during which flow separation occurs in the airflow near the outer wall of the diffuser, resulting in significant flow loss. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44F04D29/40A47L9/00
CPCF04D29/444F04D29/403A47L9/00Y02E10/72
Inventor 杨帆吴魁张伟周亚运
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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