Title:
CONTROL SYSTEM AND METHOD FOR VACUUM DEGREE DETECTION
Document Type and Number:
WIPO Patent Application WO/2018/205518
Kind Code:
A1
Abstract:
Disclosed is a control system for vacuumizing detection, comprising: a vacuum sensor (6), a digital display vacuum meter (9) and an electromagnetic valve (5), wherein the electromagnetic valve (5) and the vacuum sensor (6) are respectively connected to the digital display vacuum meter (9); the digital display vacuum meter (9) comprises a liquid crystal screen (224), a control unit (221), and a vacuum sensor drive unit (223); the liquid crystal screen (224) is electrically connected to the control unit (221), and the control unit (221) is electrically connected to the vacuum sensor drive unit (223); the vacuum sensor (6) sends a detected vacuum degree to the control unit (221), and the control unit (221) sends the received vacuum degree to the liquid crystal screen (224) for display; and when the received vacuum degree reaches a pre-set threshold value, the control unit (221) determines that a vacuumizing requirement is reached, and controls the electromagnetic valve (5) so that same is closed, allowing a vacuum pump to stop vacuumizing. In addition, a control method for vacuumizing detection, the digital display vacuum meter (9) and the vacuum pump are further disclosed, improving the precision of vacuumizing of the vacuum pump.
Inventors:
JIANG YOURONG (CN)
Application Number:
PCT/CN2017/109632
Publication Date:
November 15, 2018
Filing Date:
November 07, 2017
Export Citation:
Assignee:
ZHEJIANG VALUE MECH & ELECTRICAL PRODUCTS CO LTD (CN)
International Classes:
F04B49/06; F04B49/10
Foreign References:
| CN104088800A | 2014-10-08 | |||
| CN105371541A | 2016-03-02 | |||
| CN106568250A | 2017-04-19 | |||
| CN203756459U | 2014-08-06 | |||
| CN105179200A | 2015-12-23 | |||
| US20140366560A1 | 2014-12-18 |
Attorney, Agent or Firm:
HANGZHOU HANGCHENG PATENT ATTORNEY OFFICE CO., LTD. (CN)
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