[go: up one dir, main page]

EP3992551B1 - Steuerschaltung, klimaanlage und steuerverfahren - Google Patents

Steuerschaltung, klimaanlage und steuerverfahren

Info

Publication number
EP3992551B1
EP3992551B1 EP20896008.8A EP20896008A EP3992551B1 EP 3992551 B1 EP3992551 B1 EP 3992551B1 EP 20896008 A EP20896008 A EP 20896008A EP 3992551 B1 EP3992551 B1 EP 3992551B1
Authority
EP
European Patent Office
Prior art keywords
module
control
pressure detection
drive
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.)
Active
Application number
EP20896008.8A
Other languages
English (en)
French (fr)
Other versions
EP3992551A1 (de
EP3992551A4 (de
Inventor
Junchao ZHENG
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 EP3992551A1 publication Critical patent/EP3992551A1/de
Publication of EP3992551A4 publication Critical patent/EP3992551A4/de
Application granted granted Critical
Publication of EP3992551B1 publication Critical patent/EP3992551B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F04B49/06—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
    • F04B49/08—Regulating by delivery 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
    • F04B49/10—Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/07—Exceeding a certain pressure value in a refrigeration component or cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/027—Compressor control by controlling pressure

Definitions

  • the present disclosure relates to the compressor field, specifically to a control circuit, an air conditioner and a control method.
  • a compressor and a pressure vessel are important parts for an air conditioner system.
  • a system pressure is high, if no precautionary measures are taken for the compressor, to control the compressor to stop operation, it will cause the system pressure to continue rising, which is prone to danger.
  • the pressure vessel is provided with a pressure relief valve.
  • a pressure in the pressure vessel exceeds a safety pressure
  • the pressure relief valve is opened to reduce the pressure in the pressure vessel.
  • the pressure relief valve arranged at the pressure vessel is poor in sealing performance, leading to leakage easily.
  • EP3450882A1 relates generally to a circuit for blocking an operation of a compressor, capable of cutting off the supply of power in hardware when the pressure of a refrigerant is increased.
  • the circuit of the device is not disclosed to have superiority over the hardware.
  • a first aspect of the present disclosure provides a control circuit.
  • a second aspect of the present disclosure provides an air conditioner.
  • a third aspect of the present disclosure provides a control method.
  • the first aspect of the present disclosure provides a control circuit, including a drive module, a drive circuit, a first switch module, and a pressure detection module.
  • the drive circuit is connected to the drive module.
  • the first switch module is arranged at the drive circuit.
  • the pressure detection module is connected to the first switch module and configured to control the first switch module to be connected or disconnected, and thus control the drive circuit to turn on or turn off.
  • the control circuit controls the first switch assembly by the pressure detection module, and thus controls the drive module to stop operation, such that the pressure in the pressure vessel will not continue rising after the drive module stops operation.
  • the drive circuit is controlled to turn on or turn off directly by the first switch assembly, thus reducing components involved in the control process to allow a simpler control circuit and a more rapid response, decreasing probability of control failure due to component damage, and improving reliability of the control circuit.
  • control circuit in the above technical solution provided by the present disclosure may further have the following additional technical solutions.
  • control circuit further includes a control module connected to the drive module.
  • control module is connected to the drive module, and configured to control the drive module according to a status of the pressure detection module. Once a pressure detected by the pressure detection module exceeds a safety pressure, the drive module is controlled to stop operation, so as to avoid the drive module and the compressor from directly powering on when the pressure is returned to below the safety pressure and when the first switch assembly is connected, thus reducing impact on the drive module and the compressor when powered on, and prolonging service life of the drive module and the compressor.
  • the drive circuit includes a first circuit and a second circuit;
  • the first switch module includes a first input port, a first output port, a first control port, and a second control port; the first input port is connected to the first circuit; the first output port is connected to the second circuit; the first control port is connected to the pressure detection module; and the second control port is connected to the control module.
  • control module outputs a high level to the second control port, such that the first switch assembly can be still controlled to be disconnected even if the contact of the pressure detection module is connected, thus avoiding the drive module and the compressor from directly powering on, reducing impact on the drive module and the compressor when powered on, and prolonging service life of the drive module and the compressor.
  • the control circuit further includes a second switch module and a resistor;
  • the second switch module includes a second input port, a second output port, a third control port and a fourth control port; the second output port is connected to the second circuit; the third control port is connected to the pressure detection module; the fourth control port is connected to the control module; and an end of the resistor is connected to the second input port; and another end of the resistor is connected to the first circuit.
  • the second switch assembly when the drive module is powered on, the second switch assembly is controlled to be connected first; after the second switch assembly is connected, the first switch assembly is then connected, so as to reduce impact on the drive module and the compressor, and prolong service life of the drive module and the compressor.
  • control circuit further includes a control power module, connected to the pressure detection module.
  • control power module is configured to provide power to the first switch assembly and the second switch assembly, so that the control module controls the first switch assembly and the second switch assembly by changing an interface output signal.
  • the drive circuit includes three wires; the first switch module includes at least two relays; and the at least two relays are arranged on at least two of the three wires.
  • the drive circuit includes three wires, which are connected to a three-phase power, so as to drive and control a three-phase compressor.
  • the drive circuit includes two wires; the first switch module includes at least one relay; and the at least one relay is arranged on at least one of the two wires.
  • the drive circuit includes two wires, which are connected to a one-phase power, so as to drive and control a one-phase compressor.
  • the second aspect of the present disclosure provides an air conditioner, including the control circuit as described in any above technical solution. Therefore, the air conditioner has all beneficial effects of the control circuit as described in any above technical solution.
  • the air conditioner further includes an outdoor heat exchanger, an indoor heat exchanger, a compressor, and a throttle.
  • the outdoor heat exchanger, the compressor, the indoor heat exchanger and the throttle are connected in sequence, and the pressure detection component is arranged at the outdoor heat exchanger and/or the indoor heat exchanger.
  • the third aspect of the present disclosure provides a control method for the control circuit as described in any above technical solution.
  • the control method includes: acquiring a status of a pressure detection module; and controlling a drive module and/or a first switch assembly according to the status of the pressure detection module.
  • the control method provided by the present disclosure controls the first switch assembly by the pressure detection module, and thus controls the drive module to stop operation, such that the pressure in the pressure vessel will not continue rising after the drive module stops operation.
  • the drive circuit is controlled to turn on or turn off directly by the first switch assembly, thus reducing components involved in the control process to allow a simpler control circuit and a more rapid response, decreasing probability of control failure due to component damage, and improving reliability of the control circuit.
  • the drive module is controlled to stop operation, or the first switch assembly is controlled to be disconnected, so as to avoid the drive module and the compressor from directly powering on when the pressure is returned to below the safety pressure and when the first switch assembly is connected, thus reducing impact on the drive module and the compressor when powered on, and prolonging service life of the drive module and the compressor.
  • controlling a drive module and/or a first switch assembly according to the status of the pressure detection module includes: controlling the drive module to stop operation and/or controlling the first switch assembly to be disconnected based on that the status of the pressure detection module is turned off; and controlling the drive module to start operation and/or controlling the first switch assembly to be connected based on that the status of the pressure detection module is turned on.
  • control method further includes controlling a second switch assembly according to the status of the pressure detection module, after acquiring the status of the pressure detection module and before controlling the drive module and/or the first switch assembly according to the status of the pressure detection module.
  • the second switch assembly when the drive module is powered on, the second switch assembly is connected first. After the second switch assembly is connected, the first switch assembly is then controlled to be connected, so as to reduce impact on the drive module and the compressor by the resistor, and prolong service life of the drive module and the compressor.
  • the present disclosure provides a control circuit, including a drive module 102, a drive circuit 104, a first switch module 106 and a pressure detection module 108.
  • the drive circuit 104 is connected to the drive module 102.
  • the first switch module 106 is arranged at the drive circuit 104.
  • the pressure detection module 108 is connected to the first switch module 106 and configured to control the first switch module 106 to be connected or disconnected, and thus control the drive circuit 104 to turn on or turn off.
  • the first switch module 106 is arranged at the drive circuit 104; the pressure detection module 108 is configured to control the first switch assembly to be connected or disconnected.
  • the pressure detection module 108 is turned off, a control port of the first switch assembly is powered off, the first switch assembly is disconnected, the drive circuit 104 is turned off, the drive module 102 is powered off, to make the drive module 102 stop operation, thus avoiding the pressure from further rising.
  • the drive module 102 is controlled to stop operation by the pressure detection module 108, and accordingly the pressure in the pressure vessel will not continue rising after the drive module 102 stops operation.
  • the drive circuit 104 is controlled to turn on or turn off directly by the first switch assembly, thus reducing components involved in the control process to allow a simpler control circuit and a more rapid response, decreasing probability of control failure due to component damage, and improving reliability of the control circuit.
  • the drive module 102 is configured to drive a compressor 118.
  • the drive module 102 is powered by a power supply via the drive circuit 104.
  • the pressure detection module 108 is a pressure switch and configured to detect a pressure in a heat exchanger or a refrigerant pipe.
  • the pressure detection module 108 When the pressure in the heat exchanger or the refrigerant pipe exceeds the safety pressure, the pressure detection module 108 is turned off; the control port of the first switch assembly is powered off, an input port and an output port of the first switch assembly are disconnected; the drive circuit 104 is turned off; the drive module 102 is powered off; and the compressor 118 is stopped being driven to stop operation, such that the pressure in the heat exchanger or the refrigerant pipe does not continue rising, thereby avoiding dangers caused by overpressure in a refrigerating or heating device, such as an air conditioner, a water heater and a refrigerator, and a heat exchanger, guaranteeing normal operation of the device.
  • a refrigerating or heating device such as an air conditioner, a water heater and a refrigerator, and a heat exchanger, guaranteeing normal operation of the device.
  • the first switch assembly is a normally open switch. When it is detected by the pressure detection module 108 that the pressure in the heat exchanger or the refrigerant pipe exceeds the safety pressure, the contact of the pressure detection module 108 is disconnected, such that the first switch assembly is powered off; the input port and the output port of the first switch assembly are disconnected; the drive circuit 104 is turned off; the drive module 102 is powered off; and the compressor 118 is stopped being driven to stop operation, thus the pressure in the heat exchanger or the refrigerant pipe does not continue rising.
  • the first switch component is a normally closed switch.
  • the contact of the pressure detection module 108 is connected, such that the first switch assembly is powered on; the input port and the output port of the first switch assembly are disconnected; the drive circuit 104 is turned off; the drive module 102 is powered off; and the compressor 118 is stopped being driven to stop operation, thus the pressure in the heat exchanger or the refrigerant pipe does not continue rising.
  • the heat exchanger exchanges heat with air, and a temperature and a pressure of the refrigerant in the heat exchanger are reduced.
  • control circuit further includes a control module 110 connected to the drive module 102.
  • control module 110 is connected to the drive module 102, and is configured to control the drive module 102 according to a status of the pressure detection module 108. Once the pressure detected by the pressure detection module 108 exceeds the safety pressure, the drive module 102 is controlled to stop operation, so as to avoid the drive module 102 and the compressor 118 from directly powering on when the pressure is returned to below the safety pressure and when the first switch assembly is connected, thus reducing impact on the drive module 102 and the compressor 118 when powered on, and prolonging service life of the drive module 102 and the compressor 118.
  • the control module 110 is configured to detect the status of the pressure detection module 108, or receive status information from the pressure detection module 108, and thus control the drive module 102 according to the status of the pressure detection module 108.
  • the drive circuit 104 includes a first circuit 1042 and a second circuit 1044;
  • the first switch module 106 includes a first input port 1062, a first output port 1064, a first control port 1066, and a second control port 1068, wherein the first input port 1062 is connected to the first circuit 1042, the first output port 1064 is connected to the second circuit 1044, the first control port 1066 is connected to the pressure detection module 108, and the second control port 1068 is connected to the control module 110.
  • the first control port 1066 and the second control port 1068 are powered on or powered off, to control the first input port 1062 and the first output port 1064 to be connected or disconnected.
  • the first control port 1066 is connected to the pressure detection module 108, when the contact of the pressure detection module 108 is disconnected, the first control port 1066 is powered off; while when the contact of the pressure detection module 108 is connected, the first control port 1066 is powered on.
  • the second control port 1068 is connected to the control module 110, when the first control port 1066 is provided with a high level, and when the control module 110 outputs a low level, the first control port 1066 and the second control port 1068 are powered on; when the control module 110 outputs a high level, the first control port 1066 and the second control port 1068 are powered off, such that the control module 110 can control the first switch assembly to be connected or disconnected.
  • the control module 110 When the first switch assembly is disconnected, the control module 110 outputs a high level to the second control port 1068, such that the first switch assembly can be still controlled to be disconnected even if the contact of the pressure detection module 108 is connected, thus avoiding the drive module 102 and the compressor 118 from directly powering on, reducing impact on the drive module 102 and the compressor 118 when powered on, and prolonging service life of the drive module 102 and the compressor 118.
  • the control circuit further includes a second switch module 112 and a resistor 114.
  • the second switch module 112 includes a second input port, a second output port, and a third control port and a fourth control port.
  • the second output port is connected to the second circuit 1044.
  • the third control port is connected to the pressure detection module 108.
  • the fourth control port is connected to the control module 110.
  • An end of the resistor 114 is connected to the second input port, and another end of the resistor 114 is connected to the first circuit 1042.
  • the second switch assembly when the drive module 102 is powered on, the second switch assembly is connected first. After the second switch assembly is connected, the first switch assembly is then controlled to be connected, so as to reduce impact on the drive module 102 and the compressor 118 by the resistor 114, and prolong service life of the drive module 102 and the compressor 118.
  • the second switch assembly is a relay.
  • control circuit further includes a control power module 116.
  • the control power module 116 is connected to the pressure detection module 108.
  • control power module 116 is configured to provide power to the first switch assembly and the second switch assembly, so that the control module 110 controls the first switch assembly and the second switch assembly by changing an interface output signal.
  • the power module outputs a positive 12V voltage or a positive 24V voltage to the pressure detection module 108, and outputs a positive 3.3V voltage to the control module 110.
  • the drive circuit 104 includes three wires; the first switch module 106 includes two relays; and the two relays are arranged at two of the three wires, respectively.
  • the drive circuit 104 includes three wires; the first switch module 106 includes three relays; and the three relays are arranged at the three wires, respectively.
  • the drive circuit 104 includes three wires; the first switch module 106 includes one two-way relay; and the two-way relay is arranged at two of the three wires.
  • the drive circuit 104 includes three wires; the first switch module 106 includes one three-way relay; and the three-way relay is arranged at the three wires.
  • the drive circuit 104 includes three wires, which are connected to a three-phase power, so as to drive and control a three-phase compressor 118.
  • the drive circuit 104 includes two wires; the first switch module 106 includes one one-way relay; and the one-way relay is arranged at one of the two wires.
  • the drive circuit 104 includes two wires; the first switch module 106 includes two one-way relays; and the two one-way relays are arranged at the two wires, respectively.
  • the drive circuit 104 includes two wires; the first switch module 106 includes one two-way relay; and the two-way relay is arranged at the two wires.
  • the drive circuit 104 includes two wires, which are connected to a one-phase power, so as to drive and control a one-phase compressor 118.
  • the present disclosure provides an air conditioner, including the control circuit as described in any above embodiment. Therefore, the air conditioner has all beneficial effects of the control circuit as described in any above embodiment.
  • the air conditioner further includes an outdoor heat exchanger, an indoor heat exchanger, a compressor and a throttle.
  • the outdoor heat exchanger, the compressor, the indoor heat exchanger and the throttle are connected in sequence, and the pressure detection component is arranged at the outdoor heat exchanger and/or the indoor heat exchanger.
  • the present disclosure provides a control method for the control circuit as described in any above embodiment. As shown in Figure 4 , the control method includes steps 402 and 404.
  • a status of a pressure detection module is acquired.
  • a drive module and/or a first switch assembly are(is) controlled according to the status of the pressure detection module.
  • the drive module is controlled to stop operation by the pressure detection module, the pressure in the pressure vessel will not continue rising once the drive module stops operation.
  • a pressure relief valve for prevention of overpressure, thus improving sealing performance of the pressure vessel and reducing leakage of refrigerant media.
  • the drive circuit is controlled to turn on or turn off directly by the first switch assembly, thus reducing components involved in the control process to allow a simpler control circuit and a more rapid response, decreasing probability of control failure due to component damage, and improving reliability of the control circuit.
  • the drive module is controlled to stop operation, or the first switch assembly is controlled to be disconnected, so as to avoid the drive module and the compressor from directly powering on when the pressure is returned to below the safety pressure and when the first switch assembly is connected, thus reducing impact on the drive module and the compressor when powered on, and prolonging service life of the drive module and the compressor.
  • control method includes steps 502 and 504.
  • a status of a pressure detection module is acquired.
  • the drive module is controlled to stop operation based on that the status of the pressure detection module is turned off.
  • control method includes steps 602 and 604.
  • a status of a pressure detection module is acquired.
  • the first switch assembly is controlled to be disconnected based on that the status of the pressure detection module is turned off.
  • control method includes steps 702 and 704.
  • a status of a pressure detection module is acquired.
  • the drive module is controlled to start operation based on that the status of the pressure detection module is turned on.
  • control method includes steps 802 and 804.
  • a status of a pressure detection module is acquired.
  • the first switch assembly is controlled to be connected based on that the status of the pressure detection module is turned on.
  • the drive module when the status of the pressure detection module is detected to be turned off, it is indicated that the pressure detected by the pressure switch exceeds the safety pressure, then the drive module is controlled to stop operation, and/or the first switch assembly is controlled to be disconnected; when the status of the pressure detection module is detected to be turned on, it is indicated that the pressure detected by the pressure switch is below the safety pressure, then the drive module is controlled to start operation, and/or the first switch assembly is controlled to be connected, so as to drive the compressor to continue operation.
  • control method includes steps 902, 904 and 906.
  • a status of a pressure detection module is acquired.
  • a second switch assembly is controlled according to the status of the pressure detection module.
  • the drive module and/or the first switch assembly are(is) controlled according to the status of the pressure detection module.
  • the second switch assembly when the drive module is powered on, the second switch assembly is connected first. After the second switch assembly is connected, the first switch assembly is then controlled to be connected, so as to reduce impact on the drive module and the compressor by the resistor, and prolong service life of the drive module and the compressor.
  • Controlling a second switch assembly according to the status of the pressure detection module includes: controlling the second switch assembly to be disconnected based on that the status of the pressure detection module is turned off; and controlling the second switch assembly to be connected based on that the status of the pressure detection module is turned on.
  • control method includes:
  • a plurality of means two or more than two this features, unless specified otherwise.
  • the terms indicating orientation or position relationship such as “above” and “below” should be construed to refer to the orientation or position relationship as described or as shown in the drawings. These terms are merely for convenience and concision of description and do not alone indicate or imply that the device or element referred to must have a particular orientation or must be configured or operated in a particular orientation. Thus, it cannot be understood to limit the present disclosure.
  • connection means, for example, fixed connections, detachable connections, or integrated connections; may also be direct connections or indirect connections via intervening structures, which can be understood by those ordinary skilled in the art according to specific situations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Claims (8)

  1. Steuerschaltung, umfassend:
    ein Antriebsmodul (102);
    eine Antriebsschaltung (104), die mit dem Antriebsmodul (102) verbunden ist;
    ein erstes Schaltermodul (106), das an der Antriebsschaltung (104) angeordnet ist;
    ein Druckdetektionsmodul (108), das mit dem ersten Schaltermodul (106) verbunden und konfiguriert ist, um das erste Schaltermodul (106) zu steuern, um verbunden oder getrennt zu werden, und dadurch die Antriebsschaltung (104) zum Anschalten oder Abschalten zu steuern, wobei das Druckdetektionsmodul (108) abgeschaltet wird, wenn ein von dem Druckdetektionsmodul (108) detektierter Druck einen Sicherheitsdruck überschreitet;
    ein Steuermodul (110), das mit dem Antriebsmodul (102) verbunden ist;
    wobei das Steuermodul (110) konfiguriert ist, um eine erste Schalterbaugruppe zu steuern, um getrennt zu werden, selbst wenn ein Kontakt des Druckdetektionsmoduls (108) verbunden ist, um eine direkte Einschaltung des Antriebsmoduls (102) und des Kompressors (118) zu vermeiden;
    wobei die Antriebsschaltung (104) eine erste Schaltung (1042) und eine zweite Schaltung (1044) umfasst,
    das erste Schaltermodul (106) einen ersten Eingangsanschluss (1062), einen ersten Ausgangsanschluss (1064), einen ersten Steueranschluss (1066) und einen zweiten Steueranschluss (1068) umfasst,
    der erste Eingangsanschluss (1062) mit der ersten Schaltung (1042) verbunden ist,
    der erste Ausgangsanschluss (1064) mit der zweiten Schaltung (1044) verbunden ist,
    der erste Steueranschluss (1066) mit dem Druckdetektionsmodul (108) verbunden ist und
    der zweite Steueranschluss (1068) mit dem Steuermodul (110) verbunden ist;
    ferner umfassend ein zweites Schaltermodul (112) und einen Widerstand (114),
    wobei das zweite Schaltermodul (112) einen zweiten Eingangsanschluss, einen zweiten Ausgangsanschluss, einen dritten Steueranschluss und einen vierten Steueranschluss umfasst,
    wobei der zweite Ausgangsanschluss mit der zweiten Schaltung (1044) verbunden ist, der dritte Steueranschluss mit dem Druckdetektionsmodul (108) verbunden ist, die vierte Steuerung mit dem Steuermodul (110) verbunden ist;
    wobei ein Ende des Widerstands (114) mit dem zweiten Eingangsanschluss verbunden ist und ein anderes Ende des Widerstands (114) mit der ersten Schaltung (1042) verbunden ist; und,
    wenn das Antriebsmodul (102) eingeschaltet wird, die zweite Schalterbaugruppe gesteuert wird, um zuerst verbunden zu werden, und, nachdem die zweite Schalterbaugruppe verbunden worden ist, danach die erste Schalterbaugruppe verbunden wird.
  2. Steuerschaltung nach Anspruch 1, ferner umfassend: ein Steuerspannungsmodul (116), das mit dem Druckdetektionsmodul (108) verbunden ist.
  3. Steuerschaltung nach Anspruch 1 oder 2, wobei
    die Antriebsschaltung (104) drei Drähte umfasst und
    das erste Schaltermodul (106) mindestens zwei Relais umfasst, die auf mindestens zwei der drei Drähte angeordnet sind.
  4. Steuerschaltung nach einem der Ansprüche 1 bis 3, wobei
    die Antriebsschaltung (104) zwei Drähte umfasst und
    das erste Schaltermodul (106) mindestens ein Relais umfasst, das auf mindestens einem der zwei Drähte angeordnet ist.
  5. Klimaanlage, die eine Steuerschaltung nach einem der Ansprüche 1 bis 4 umfasst.
  6. Steuerverfahren zum Steuern der Steuerschaltung nach einem der Ansprüche 1 bis 4, wobei das Steuerverfahren Folgendes umfasst:
    Erfassen (402) eines Status eines Druckdetektionsmoduls (108); und
    Steuern (404) eines Antriebsmoduls (102) und/oder einer ersten Schalterbaugruppe in Abhängigkeit von dem Status des Druckdetektionsmoduls (108).
  7. Steuerverfahren nach Anspruch 6, wobei das Steuern eines Antriebsmoduls (102) und/oder einer ersten Schalterbaugruppe in Abhängigkeit von dem Status des Druckdetektionsmoduls (108) Folgendes umfasst:
    Steuern des Antriebsmoduls (102), um den Betrieb zu stoppen, und/oder Steuern der ersten Schalterbaugruppe, um getrennt zu werden, basierend auf dem Status des Druckdetektionsmoduls (108), der abgeschaltet wird; und
    Steuern des Antriebsmoduls (102), um den Betrieb zu starten, und/oder Steuern der ersten Schalterbaugruppe, um verbunden zu werden, basierend auf dem Status des Druckdetektionsmoduls (108), der angeschaltet wird.
  8. Steuerverfahren nach Anspruch 6 oder 7, ferner umfassend Steuern (904) einer zweiten Schalterbaugruppe in Abhängigkeit von dem Status des Druckdetektionsmoduls (108) nach dem Erfassen (902) des Status des Druckdetektionsmoduls (108) und vor dem Steuern (906) des Antriebsmoduls (102) und/oder der ersten Schalterbaugruppe in Abhängigkeit von dem Status des Druckdetektionsmoduls (108).
EP20896008.8A 2019-12-02 2020-02-28 Steuerschaltung, klimaanlage und steuerverfahren Active EP3992551B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911211248.1A CN110848125B (zh) 2019-12-02 2019-12-02 控制电路、空调器和控制方法
PCT/CN2020/077212 WO2021109343A1 (zh) 2019-12-02 2020-02-28 控制电路、空调器和控制方法

Publications (3)

Publication Number Publication Date
EP3992551A1 EP3992551A1 (de) 2022-05-04
EP3992551A4 EP3992551A4 (de) 2022-08-24
EP3992551B1 true EP3992551B1 (de) 2025-12-03

Family

ID=69607380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20896008.8A Active EP3992551B1 (de) 2019-12-02 2020-02-28 Steuerschaltung, klimaanlage und steuerverfahren

Country Status (3)

Country Link
EP (1) EP3992551B1 (de)
CN (1) CN110848125B (de)
WO (1) WO2021109343A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115076083B (zh) * 2022-08-05 2025-05-30 合肥美的暖通设备有限公司 关断保护、驱动及过压关断系统、热泵装置及电器设备
CN115288990B (zh) * 2022-08-05 2025-07-22 合肥美的暖通设备有限公司 压缩装置的关断控制系统、热泵装置、设备和驱动系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4975352B2 (ja) * 2006-04-03 2012-07-11 東芝キヤリア株式会社 空気調和機
DE102007052532B4 (de) * 2007-11-01 2012-03-22 Gordon Seiptius Sicherheitssystem zur Sicherung von Verdichtern in Kälteanlagen
JP2014165945A (ja) * 2013-02-21 2014-09-08 Mitsubishi Heavy Ind Ltd 圧縮機モータの駆動装置及び空気調和機
US9417149B2 (en) * 2013-10-28 2016-08-16 Lennox Industries Inc. System for calibration of a compressor unit in a heating, ventilation, and air conditioning system
CN104567158B (zh) * 2014-12-19 2017-02-22 李宁 控制制冷机系统中制冷液泄漏量的系统及方法
CN205533145U (zh) * 2016-01-22 2016-08-31 芜湖美智空调设备有限公司 空调器、压缩机系统及其控制装置
US10823444B2 (en) * 2017-03-31 2020-11-03 Johnson Controls Technology Company Pressure control device
CN107084514B (zh) * 2017-06-26 2020-09-15 广东美的暖通设备有限公司 一种用于空调系统压力保护的装置和空调系统
CN107143985B (zh) * 2017-06-26 2020-01-31 广东美的暖通设备有限公司 一种用于空调系统压力保护的装置和空调系统
KR20190023609A (ko) * 2017-08-29 2019-03-08 엘지전자 주식회사 압축기 동작 차단 회로
KR102036115B1 (ko) * 2017-12-18 2019-10-24 엘지전자 주식회사 압축기 보호 기능을 가지는 공기 조화기
KR20190096725A (ko) * 2018-02-09 2019-08-20 엘지전자 주식회사 압축기 구동 장치 및 이를 구비하는 공기조화기
CN110594953A (zh) * 2019-09-09 2019-12-20 广东美的暖通设备有限公司 压缩机驱动装置、压缩机压力保护方法及空调器

Also Published As

Publication number Publication date
CN110848125B (zh) 2021-04-27
EP3992551A1 (de) 2022-05-04
CN110848125A (zh) 2020-02-28
EP3992551A4 (de) 2022-08-24
WO2021109343A1 (zh) 2021-06-10

Similar Documents

Publication Publication Date Title
EP3978821A1 (de) Verfahren zur aktivierung einer heizung bei niedriger temperatur für eine klimaanlage und klimaanlage
CN113623706B (zh) 防冻保护方法、防冻保护系统以及水系统热泵机组
US10619878B2 (en) Inverter driver of air conditioner
EP3992551B1 (de) Steuerschaltung, klimaanlage und steuerverfahren
CN106352489A (zh) 一种空调故障的检测方法及系统
JP2009264715A (ja) ヒートポンプ温水システム
CN112594875B (zh) 一种多联机室内机通讯台数控制方法
CN104848479A (zh) 空调器及其冷媒管路压力监控与系统控制方法和装置
JP5824648B2 (ja) 発熱体収納装置用冷却システム
CN113446706B (zh) 空调器控制方法和空调器
JP2008148366A (ja) 冷凍装置及び冷凍装置に用いられるインバータ装置
CN113137704A (zh) 热泵空调机组及其四通阀制热换向异常的修复方法
JP2005121333A (ja) 空気調和装置
JP2015152174A (ja) 温水システム
AU2015282158B2 (en) Heat pump type chiller
JP2009264718A (ja) ヒートポンプ温水システム
JP5140473B2 (ja) 冷凍システム
WO2015198751A1 (ja) ヒートポンプ式チラー
WO2011121614A2 (en) A control system of valves for transformer cooling by using relay system
EP2798284B1 (de) Verfahren zur koordination des betriebs von verdichtern
EP4014270B1 (de) System und verfahren zur vermeidung von überhitzung in einer brennstoffzelle
CN110962528B (zh) 一种汽车空调控制系统及其控制方法
US12305635B2 (en) Compressor for heat exchange system, heat exchange system and method for controlling operation of compressor
CN111486507A (zh) 空调系统和空调系统运行控制方法
CN217523120U (zh) 一种用于雷达电子机柜的风冷散热系统的控制系统

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220125

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: F25B0049020000

Ipc: F04B0049060000

Ref country code: DE

Ref legal event code: R079

Ref document number: 602020063444

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F25B0049020000

Ipc: F04B0049060000

A4 Supplementary search report drawn up and despatched

Effective date: 20220726

RIC1 Information provided on ipc code assigned before grant

Ipc: F04B 35/04 20060101ALN20220720BHEP

Ipc: F25B 49/02 20060101ALI20220720BHEP

Ipc: F25B 49/00 20060101ALI20220720BHEP

Ipc: F04B 49/10 20060101ALI20220720BHEP

Ipc: F04B 49/08 20060101ALI20220720BHEP

Ipc: F04B 49/06 20060101AFI20220720BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240119

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20250923

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: F10

Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251203

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020063444

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D