金属薄膜电容真空计

By integrating protection and cleaning mechanisms at the connector of the metal thin-film capacitive vacuum gauge, and utilizing a stroke linkage transmission mechanism and elastic reset component, automatic gas filling and sealing, vacuuming, and cleaning are achieved, solving the connector oxidation problem, improving signal stability and measurement accuracy, and simplifying the maintenance process.

CN122409054APending Publication Date: 2026-07-17TSINGHUA UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIVERSITY
Filing Date
2026-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The connectors of existing metal thin-film capacitive vacuum gauges are prone to oxidation when exposed to air for a long time, which leads to signal attenuation and noise interference, affecting measurement accuracy. Moreover, existing protective measures cannot effectively suppress oxidation, and maintenance operations are cumbersome.

Method used

The connector integrates a protection mechanism and a cleaning mechanism. Utilizing a stroke linkage transmission mechanism and an elastic reset component, it automatically achieves air inflation and vacuuming during insertion and removal. Combined with the cleaning mechanism, it automatically wipes the pins, achieving fully mechanical linkage protection and cleaning.

Benefits of technology

It effectively inhibits pin oxidation, stabilizes signal transmission and measurement accuracy, simplifies maintenance operations, reduces maintenance costs, and extends service life.

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Abstract

本发明公开了一种金属薄膜电容真空计,包括:设有插接头的真空计本体;插接头设有保护机构与清洁机构;保护机构包括:壳体、充气密封组件、负压抽气组件、弹性复位组件和行程联动传动机构;壳体内形成有充气腔和抽气腔;充气密封组件包括密封气囊、滑动设置在充气腔内的充气活塞以及连通密封气囊与充气腔的充气管;负压抽气组件包括滑动设置在抽气腔内的抽气活塞、连通插接头内部和抽气腔的进气管;行程联动传动机构连接充气密封组件、负压抽气组件与弹性复位组件;清洁机构包括:存储驱动单元、清洁件以及输送单元;清洁机构与行程联动传动机构联动配合。本申请能实现插接头的有效防护,提升信号传输稳定性与测量精度,简化和降低维护成本。
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