Scroll compressor

By employing a combination of locating pins and fastening components in the scroll compressor, the problems of positioning and preventing rotation of the stationary scroll plate are solved, simplifying the assembly process, reducing processing difficulty and cost, and improving assembly stability.

CN224352095UActive Publication Date: 2026-06-12SUZHOU INVOTECH SCROLL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU INVOTECH SCROLL TECH
Filing Date
2025-06-13
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In existing scroll compressors, the stationary scroll plate is positioned and prevented from rotating by four locating pins, which results in high precision requirements for the machining of the mounting holes on the main bearing housing and inconvenient assembly.

⚗Method used

The design employs a combination of at least two locating pins and fastening components. The locating pins are inserted and fixed to the main bearing housing, and the fastening components include pin sleeves and bolts. The bolts are threadedly connected to the main bearing housing, and the pin sleeves are inserted into the stationary scroll plate to achieve circumferential positioning and axial limiting of the stationary scroll plate.

🎯Benefits of technology

This reduces the need for high-precision machining of the threaded holes on the main bearing housing, simplifies the assembly process, reduces the use of additional positioning fixtures, lowers manufacturing costs, and improves the stability and reliability of the assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a compressor technical field, specifically disclose a scroll compressor, the scroll compressor includes main bearing seat and static scroll disc and at least two locating pins and fastening assembly, and one end of locating pin is inserted with main bearing seat and is fixed, and the other end of locating pin is inserted with static scroll disc and can slide relatively. Fastening assembly includes pin sleeve and bolt, pin sleeve is inserted with static scroll disc, and bolt is arranged in pin sleeve and tail portion of bolt is connected with main bearing seat threadedly, and the head portion of bolt abuts on the upper end surface of pin sleeve, and locating pin and fastening assembly cooperate, reduce the parallelism requirement between locating pin after installation, and small gap insertion fit can be used between locating pin and static scroll disc, guarantee the positioning accuracy, the threaded hole of normal precision is set up on main bearing seat, and the fixed need of bolt to pin sleeve can be satisfied, reduce the high-precision machining demand of threaded hole on main bearing seat, and assembly is simple, and the manufacturing cost of main bearing seat is reduced.
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