EP3992458A4 - Pressure protection circuit, control method, and computer-readable storage medium - Google Patents

Pressure protection circuit, control method, and computer-readable storage medium Download PDF

Info

Publication number
EP3992458A4
EP3992458A4 EP20902060.1A EP20902060A EP3992458A4 EP 3992458 A4 EP3992458 A4 EP 3992458A4 EP 20902060 A EP20902060 A EP 20902060A EP 3992458 A4 EP3992458 A4 EP 3992458A4
Authority
EP
European Patent Office
Prior art keywords
computer
storage medium
control method
readable storage
protection circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20902060.1A
Other languages
German (de)
French (fr)
Other versions
EP3992458A1 (en
Inventor
Xiaodong Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Heating and Ventilating Equipment Co Ltd filed Critical Midea Group Co Ltd
Publication of EP3992458A1 publication Critical patent/EP3992458A1/en
Publication of EP3992458A4 publication Critical patent/EP3992458A4/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP20902060.1A 2019-12-16 2020-02-24 Pressure protection circuit, control method, and computer-readable storage medium Pending EP3992458A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911300233.2A CN111005862B (en) 2019-12-16 2019-12-16 Pressure protection circuit, control method, and computer-readable storage medium
PCT/CN2020/076442 WO2021120388A1 (en) 2019-12-16 2020-02-24 Pressure protection circuit, control method, and computer-readable storage medium

Publications (2)

Publication Number Publication Date
EP3992458A1 EP3992458A1 (en) 2022-05-04
EP3992458A4 true EP3992458A4 (en) 2022-09-28

Family

ID=70116410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20902060.1A Pending EP3992458A4 (en) 2019-12-16 2020-02-24 Pressure protection circuit, control method, and computer-readable storage medium

Country Status (3)

Country Link
EP (1) EP3992458A4 (en)
CN (1) CN111005862B (en)
WO (1) WO2021120388A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110594953A (en) 2019-09-09 2019-12-20 广东美的暖通设备有限公司 Compressor driving device, compressor pressure protection method and air conditioner
CN111541220A (en) * 2020-06-02 2020-08-14 广东美的暖通设备有限公司 Drive control circuit, method and device and air conditioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010181110A (en) * 2009-02-06 2010-08-19 Mitsubishi Electric Corp Refrigerating cycle device
CN106684818A (en) * 2017-03-13 2017-05-17 广东美的暖通设备有限公司 Overvoltage protection circuit, overvoltage protection method and overvoltage protection device
CN107580750A (en) * 2015-04-16 2018-01-12 大金工业株式会社 The inverter driving apparatus of air conditioner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2348517Y (en) * 1998-08-28 1999-11-10 宝山钢铁(集团)公司 Protective device for AC contactor main contact fault
JP2004324966A (en) * 2003-04-23 2004-11-18 Aisin Seiki Co Ltd Control method of engine-driven air conditioner
JP4222227B2 (en) * 2004-03-04 2009-02-12 パナソニック株式会社 Control device for heat pump water heater
CN1955596A (en) * 2005-10-28 2007-05-02 乐金电子(天津)电器有限公司 Air conditioner and control method of its compressor inverse direction operation
JP2014165945A (en) * 2013-02-21 2014-09-08 Mitsubishi Heavy Ind Ltd Drive device for compressor motor, and air conditioner
CN105757908B (en) * 2016-04-08 2018-09-04 广东美的制冷设备有限公司 Air-conditioner control method and device
CN107143985B (en) * 2017-06-26 2020-01-31 广东美的暖通设备有限公司 pressure protection device for air conditioning system and air conditioning system
CN107084514B (en) * 2017-06-26 2020-09-15 广东美的暖通设备有限公司 Device for air conditioning system pressure protection and air conditioning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010181110A (en) * 2009-02-06 2010-08-19 Mitsubishi Electric Corp Refrigerating cycle device
CN107580750A (en) * 2015-04-16 2018-01-12 大金工业株式会社 The inverter driving apparatus of air conditioner
CN106684818A (en) * 2017-03-13 2017-05-17 广东美的暖通设备有限公司 Overvoltage protection circuit, overvoltage protection method and overvoltage protection device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021120388A1 *

Also Published As

Publication number Publication date
CN111005862B (en) 2022-02-15
WO2021120388A1 (en) 2021-06-24
CN111005862A (en) 2020-04-14
EP3992458A1 (en) 2022-05-04

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