Duct type air conditioner

By placing the inner stator of the drive motor on the side wall in the duct unit and using threaded locking devices to separate the outer rotor from the inner stator, the maintenance process of the inner rotor motor is simplified, maintenance efficiency is improved and costs are reduced, while protecting the motor and keeping the wiring layout neat, and extending the motor's lifespan.

CN122107458APending Publication Date: 2026-05-29HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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Patent Information

Application Number
CN202411749983.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The inspection and maintenance process of the internal rotor motor in existing duct air conditioners is cumbersome, requiring the centrifugal fan to be disassembled first, resulting in low inspection and maintenance efficiency and high cost.

Method used

The inner stator of the drive motor is set on the side wall of the housing, and the outer rotor is nested on the radially outer side of the inner stator and connected to the shaft by a threaded locking device. The shaft can move in a preset direction, allowing the outer rotor to be separated from the inner stator, thus simplifying the disassembly process of the inner stator.

Benefits of technology

It improves the efficiency of drive motor inspection and maintenance, reduces inspection and maintenance costs, and protects the motor through the housing, extending its service life and ensuring neat wiring layout and electrical reliability.

✦ Generated by Eureka AI based on patent content.
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Abstract

The ducted air conditioner comprises a shell, a heat exchanger, an electric appliance box, a centrifugal fan assembly, a first shaft hole, a rotating shaft, a driving motor and a threaded locking piece, the shell is provided with a first side wall and a second side wall which are arranged at intervals in the first preset direction, and the heat exchanger, the electric appliance box, the centrifugal fan assembly and the driving motor are arranged in an inner cavity of the shell; the centrifugal fan assembly is located between the first side wall and the second side wall, the first shaft hole is formed in the centrifugal fan assembly and penetrates through the fan assembly in the first preset direction, the rotating shaft penetrates through the first shaft hole, an inner stator of the driving motor is arranged on a box body of the electric box, and an outer rotor of the driving motor is connected with the second end. The outer rotor and the rotating shaft are arranged on the outer side of the inner stator in the radial direction in a nested mode, and after the threaded locking piece is unscrewed, the outer rotor and the rotating shaft can move in the first preset direction so that the outer rotor can be separated relative to the inner stator, the inner stator of the driving motor can be conveniently detached from the shell to be overhauled and maintained, and the overhaul and maintenance efficiency is higher.
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