Air duct assembly, air purifier and air duct assembly control method

By using a combination of air guides and multiple centrifugal fans in the air purifier to replace the volute structure, a wide diffused airflow is formed, which solves the problems of high noise and high energy consumption under low resistance filters and achieves a low-noise and high-volume air purification effect.

CN121274416BActive Publication Date: 2026-03-31SUZHOU BEIANG TECH LTD
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Patent Information

Application Number
CN202511838960.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-03-31
Estimated Expiration
2045-12-08

AI Technical Summary

Technical Problem

Existing air purifiers suffer from high noise and high energy consumption when using low-resistance filters, a problem that traditional duct components cannot effectively solve.

Method used

By adjusting the outlet structure of the air duct assembly, adopting a combination design of guide elements and multiple centrifugal fans, and setting concave and convex guide surfaces to replace the traditional volute structure, a wide diffused airflow is formed, reducing airflow interaction and vortex generation.

Benefits of technology

It achieves high-volume air purification with low energy consumption, uniform airflow direction and speed, reduced aerodynamic noise, and improved purification speed and efficiency.

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Abstract

The present application relates to the technical field of air purifiers, and specifically provides a wind channel assembly, an air purifier and a wind channel assembly control method.The wind channel assembly comprises a centrifugal fan, a first shell and a flow guide piece;the centrifugal fan is provided in multiple parallel and sequential intervals;the first shell is arranged outside the centrifugal fan and is connected to the centrifugal fan;the first shell is provided with multiple wind channels corresponding to the centrifugal fan in one-to-one correspondence;the wind channel comprises a first air inlet and multiple first air outlets;the first air inlet is used for introducing airflow filtered by a target filter with a target resistance into the wind channel;the multiple first air outlets are arranged on the outer periphery of the centrifugal fan;the flow guide piece is arranged in the first shell and is connected to the first shell;the flow guide piece is arranged between two adjacent centrifugal fans to separate the wind channels;the flow guide piece is provided with flow guide concave arc surfaces on both sides, and the flow guide concave arc surfaces are configured to guide the airflow of a target fan to the first air outlet. The present application can provide large airflow while taking into account low noise and energy consumption.
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