Air duct assembly and cabinet type air conditioner indoor unit

By designing the air duct components of the main shell and the secondary shell, and optimizing the air duct structure, the problems of low air volume and short air delivery distance in existing ventilation equipment are solved, thereby increasing the air volume and extending the air delivery distance, making it suitable for installation in confined spaces.

CN224649976UActive Publication Date: 2026-08-18GREE ELECTRIC APPLIANCE INC OF ZHUHAI +1
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Patent Information

Application Number
CN202521346895.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-08-18
Estimated Expiration
2035-06-27

AI Technical Summary

Technical Problem

In existing ventilation equipment, the distance between the fan and the upper and lower air outlets is relatively large, resulting in a longer airflow path, increased airflow resistance, reduced air volume, and limited air delivery distance.

Method used

Design a duct assembly including a main shell and a secondary shell. The main shell contains a main upper air duct, an upper blade cavity, a main middle air duct, a lower blade cavity, and a main lower air duct. The secondary shell encloses a secondary air duct, forming independent main upper air outlet path, secondary upper air outlet path, and main lower air outlet path. By optimizing the duct structure, airflow resistance is reduced and air delivery volume is increased.

Benefits of technology

By optimizing the duct structure, reducing airflow resistance, increasing air volume, extending air delivery distance, expanding air delivery range, reducing fan power consumption, and supporting multiple air outlet methods, it is suitable for installation in confined spaces.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This utility model provides an air duct assembly and a cabinet-type air conditioner indoor unit. The air duct assembly includes a main shell and a secondary shell. The shell wall of the main shell forms a main upper air outlet, a main lower air outlet, and a main middle air outlet. The interior of the main shell forms a main upper air duct, an upper air blade cavity, a main middle air duct, a lower air blade cavity, and a main lower air duct. The secondary shell and the main shell enclose a secondary air duct. The upper air blade cavity, the upper air blade cavity outlet, the main upper air duct, and the main upper air outlet are sequentially connected to form a main upper air outlet path. The lower air blade cavity, the lower air blade cavity upper outlet, and the main air outlet are connected sequentially to form a main upper air outlet path. The main central air duct, main central air outlet, and secondary air duct are connected in sequence to form the secondary upper air outlet flow path; the lower air blade cavity, lower outlet of the lower air blade cavity, main lower air duct, and main lower air outlet are connected in sequence to form the main lower air outlet flow path; the main upper air outlet flow path and the main lower air outlet flow path are connected by a short path to reduce airflow resistance, increase air volume, and extend air delivery distance; the three flow paths of the main upper air outlet flow path, secondary upper air outlet flow path, and main lower air outlet flow path are set independently, and the upper and lower air outlets do not interfere with each other, thus improving the stability of air delivery.
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