Compressor, air conditioner

By optimizing the bottom position and structural design of the oil distribution pipe, the problem of excessive oil discharge rate caused by lubricating oil backflow was solved, achieving effective lubricating oil backflow and cost reduction.

CN117345637BActive Publication Date: 2026-06-30ZHUHAI LANDA COMPRESSOR +1
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Patent Information

Application Number
CN202311546935.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-20
Publication Date
2026-06-30
Estimated Expiration
2043-11-20

AI Technical Summary

Technical Problem

To prevent excessive oil discharge caused by lubricating oil backflow in existing compressors, the component structure design and assembly process used in the current technology are complex, which increases the cost of the compressor.

Method used

By adjusting the relative position of the bottom end of the oil distribution pipe to the inner wall of the outer casing, the oil distribution pipe is set to protrude from the inner wall of the outer casing and designed as a bent pipe structure. The bent pipe faces downstream in the rotation direction of the rotor. Combined with the cutting edge treatment of the lower support and the outer peripheral wall of the stator, the return path of the lubricating oil is optimized.

Benefits of technology

It effectively reduces the compressor's exhaust oil discharge rate, ensures effective lubricant return, simplifies structural design, and reduces compressor manufacturing costs.

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Abstract

This invention provides a compressor and an air conditioner. The compressor includes a housing and an oil distribution pipe. The housing has a compressor discharge pipe, and an oil sump is formed at the bottom of the housing cavity. The top end of the oil distribution pipe communicates with the compressor discharge pipe, and the bottom end of the oil distribution pipe protrudes from the inner wall of the housing to communicate with the housing cavity. The height of the bottom end of the oil distribution pipe corresponds to the upper limit oil level of the oil sump. This invention effectively reduces the compressor's discharge oil rate and ensures effective oil return of lubricating oil in the compressor cavity simply by adjusting the relative position of the bottom end of the oil distribution pipe and the inner wall of the housing. The structure is extremely simple, requiring no other complex assembly steps, and greatly reducing the compressor's manufacturing cost.
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