Title:
INTEGRATED CONTROL VALVE AND REFRIGERANT FILLING MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/103111
Kind Code:
A1
Abstract:
The present invention discloses an integrated control valve and a refrigerant filling machine. The integrated control valve comprises a valve body, a leakage detection pipe, a refrigerant filling pipe, a first pipe and a second pipe. The valve body comprises a first connector, a second connector and a third connector, the first connector being connected to the second connector, the third connector being connected to the first connector, the third connector being connected to the leakage detection pipe and the first pipe, the first connector being connected to the refrigerant filling pipe, and the second connector being connected to the second pipe. The first connector and the second connector are intended to be connected to an external explosion-proof valve, and the third connector is intended to be connected to an external pressure switch. Each electromagnetic valve group comprises two electromagnetic valves which are reversely connected, and the electromagnetic valve groups are arranged in the leakage detection pipe, the refrigerant filling pipe, the first pipe and the second pipe. The control valve, by means of the two electromagnetic valves reversely connected in each pipe, may reduce a risk that a high-pressure gas reversely pushes the electromagnetic valves open. The present invention can be widely applied to the technical field of refrigerant filling machines.
Inventors:
ZHANG SHAOYU (CN)
Application Number:
PCT/CN2021/141425
Publication Date:
June 15, 2023
Filing Date:
December 27, 2021
Export Citation:
Assignee:
GUANGZHOU BALANCE MACHINERY CO LTD (CN)
International Classes:
F16K11/22
Foreign References:
| CN107091345A | 2017-08-25 | |||
| CN101191686A | 2008-06-04 | |||
| JP2002267232A | 2002-09-18 | |||
| CN106678391A | 2017-05-17 | |||
| CN101331528A | 2008-12-24 | |||
| CN207080677U | 2018-03-09 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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