WO2020087903A1 - Climatiseur et procédé de commande pour climatiseur - Google Patents

Climatiseur et procédé de commande pour climatiseur Download PDF

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Publication number
WO2020087903A1
WO2020087903A1 PCT/CN2019/086172 CN2019086172W WO2020087903A1 WO 2020087903 A1 WO2020087903 A1 WO 2020087903A1 CN 2019086172 W CN2019086172 W CN 2019086172W WO 2020087903 A1 WO2020087903 A1 WO 2020087903A1
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WO
WIPO (PCT)
Prior art keywords
interface
chamber
compressor
heat exchanger
air conditioner
Prior art date
Application number
PCT/CN2019/086172
Other languages
English (en)
Chinese (zh)
Inventor
高斌
Original Assignee
广东美芝精密制造有限公司
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Filing date
Publication date
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Publication of WO2020087903A1 publication Critical patent/WO2020087903A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/048—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle

Definitions

  • the present application relates to the technical field of air conditioners, in particular to an air conditioner and a control method of the air conditioner.
  • the pressure difference between the discharge port and the return port of the compressor must be within a certain range before it can be restarted.
  • the pressure difference must reach a small value, such as within 1 kgf / cm 2 , otherwise it will not be possible to start the compressor again, thereby failing to achieve the rapid re-operation of the air conditioner after shutdown Features.
  • many parts need to be added to the air conditioner, which increases the number of parts in the air conditioner, resulting in a higher cost of the air conditioner. It is a technical problem that those skilled in the art urgently need to solve to enable the compressor to start again quickly and simplify the structure of the air conditioner.
  • the present application proposes an air conditioner, which can quickly connect the exhaust port and the return port of the compressor to achieve pressure balance when the compressor is stopped, so that the compressor can be restarted quickly, and the structure is simple and the cost is low.
  • This application also proposes a control method for the air conditioner.
  • An air conditioner includes: a compressor having an exhaust port and an air return port; an indoor heat exchanger and an outdoor heat exchanger, and the first end of the indoor heat exchanger passes through a throttling element Connected to the first end of the outdoor heat exchanger; a reversing component, the reversing component has a first interface to a fourth interface, the first interface is connected to the exhaust port, and the second interface is connected to the The second end of the outdoor heat exchanger is connected, the third interface is connected to the return air port, and the fourth interface is connected to the second end of the indoor heat exchanger; when the compressor is stopped, the first The interface communicates with the third interface.
  • the air conditioner of the embodiment of the present application when the compressor is stopped, by connecting the first interface with the third interface, when the compressor is stopped, the exhaust port and the return port of the compressor can be quickly connected to achieve pressure balance, thereby The compressor can be started again quickly, and the structure is simple and the cost is low.
  • the second interface when the compressor is stopped, the second interface is not in communication with the fourth interface.
  • the third interface communicates with the interface connected to the low-pressure side heat exchanger.
  • the reversing component is a four-way valve.
  • the four-way valve includes: a valve body defining a valve cavity, the valve body being provided with the first interface to the fourth interface; a valve core, The valve core is movably disposed in the valve cavity and has a first position to a third position.
  • the valve core is provided with a communication portion protruding toward the inner wall of the valve cavity, and the communication portion is provided with A communication channel, the valve core, the communication portion and the inner wall of the valve cavity define a first chamber to a third chamber, the communication channel communicates with the second chamber, and the third interface is The second chamber communicates; at the first position, the first interface and the second interface both communicate with the first chamber, and the fourth interface communicates with the second chamber; In the second position, the first interface communicates with the second chamber through the communication channel; in the third position, the second interface communicates with the second chamber, the first interface Both the fourth interface and the third chamber are in communication.
  • the valve cavity has opposing first and second side walls, the first interface is located on the first side wall, and the second to fourth interfaces are located on the A second side wall, a first sub-chamber and a second sub-chamber are defined between the valve core, the communication portion and the first side wall, between the valve core and the second side wall A third sub-chamber, a fourth sub-chamber and the second sub-chamber are defined, wherein the third sub-chamber and the first sub-chamber are located on the same side of the second chamber and are in communication To define the first chamber, the second sub-chamber and the fourth sub-chamber are located on the same side of the second chamber and communicate to define the third chamber.
  • the valve core includes: a first blocking block and a second blocking block, the first blocking block and the second blocking block are spaced apart in the moving direction of the valve core; connection Plate, the connecting plate is connected between the first blocking block and the second blocking block, the surface of the connecting plate facing the first side wall is formed in a direction close to the first side wall
  • the protruding communication part, the communication part, the connection plate, the first blocking block and the first side wall define the first sub-chamber, the communication part, the connection plate ,
  • the second blocking block and the first side wall define the second sub-chamber; a first partition plate and a second partition plate, the first partition plate and the second partition
  • the plate is provided on the surface of the connecting plate away from the first side wall and spaced apart in the moving direction of the valve core, the first partition plate is located between the second partition plate and the Between the first blocking block, the first partition plate, the second partition plate, the connecting plate and the second side wall define the first The chamber, the first blocking block, the first partition plate, the connecting plate and the
  • the first barrier block, the second barrier block, the connection plate, the communication portion, the first partition plate, and the second partition is an integrally formed piece.
  • the four-way valve further includes a first connection pipe and a second connection pipe, the first connection pipe is connected to the second interface and the third interface respectively, the first A connecting tube is connected with a first control valve in series, the second connecting tube is connected to the third port and the fourth port respectively, and a second control valve is connected to the second connecting tube in series;
  • the communication part The surface facing the first side wall defines a first cut-off surface and a second cut-off surface, the first cut-off surface and the second cut-off surface are defined by an end of the communication channel facing the first side wall Spaced apart; the surface of the first partition plate facing the second side wall defines a third cutoff surface, and the surface of the second partition plate facing the second side wall defines the fourth The cut-off surface, the spool has a fourth position and a fifth position; in the fourth position, the first cut-off surface blocks the first interface, and the fourth cut-off surface blocks the fourth interface , The first control valve is opened and the second control valve is opened, the second interface and the
  • the four-way valve includes an electromagnetic control member, and the electromagnetic control member is used to drive the spool to move.
  • the throttle element is an electronic expansion valve, a thermal expansion valve, or a capillary tube.
  • the air conditioner is the above-mentioned air conditioner
  • the control method includes: controlling the compressor to start, controlling the first interface and the third interface to be disconnected, Turn on the third interface and the interface of the reversing component connected to the low-pressure side heat exchanger; detect the discharge pressure P1 of the compressor and the pressure P2 of the high-pressure side heat exchanger; when the P1 When ⁇ P2, the first interface is controlled to communicate with the interface of the reversing component connected to the high-pressure side heat exchanger.
  • the compressor's return port can suck the refrigerant in the low-pressure side heat exchanger, which is helpful to quickly increase the compressor discharge pressure P1, and when P1 ⁇ P2, control the first interface and the reversing component
  • the interface connected with the high-pressure side heat exchanger is communicated, so that the refrigerant of the high-pressure side heat exchanger can be prevented from flowing back to the exhaust port of the compressor, thereby helping to improve the success rate of starting the compressor.
  • the pressure at the first interface is detected to obtain the discharge pressure P1 of the compressor.
  • the air conditioner is the above-mentioned air conditioner
  • the control method includes: controlling the compressor to start, controlling the first interface and the third interface to be disconnected, Turn on the third interface and the interface of the reversing component connected to the low-pressure side heat exchanger; after t seconds, control the first interface and the interface of the reversing component connected to the high-pressure side heat exchanger Connected.
  • the compressor's return port can suck the refrigerant in the low-pressure side heat exchanger, which is beneficial to quickly increase the compressor discharge pressure P1, and after t seconds, control the first interface and the reversing assembly
  • the interfaces connected to the high-pressure side heat exchanger are connected, so that the refrigerant of the high-pressure side heat exchanger can be prevented from flowing back to the exhaust port of the compressor, thereby helping to improve the success rate of starting the compressor.
  • FIG. 1 is a schematic structural diagram of a four-way valve according to an embodiment of the present application, in which the valve core is located in the first position;
  • FIG. 2 is a schematic structural view of the spool of the four-way valve in FIG. 1 in the second position;
  • FIG. 3 is a schematic structural view of the spool of the four-way valve in FIG. 2 in the third position;
  • FIG. 4 is a schematic diagram of the connection state of the interface of the four-way valve in FIG. 1, wherein the first interface communicates with the second interface, and the third interface communicates with the fourth interface;
  • FIG. 5 is a schematic diagram of the connection state of the interface of the four-way valve in FIG. 2, wherein the first interface is in communication with the third interface, and the second interface and the fourth interface are both disconnected;
  • FIG. 6 is a schematic diagram of the connection state of the four-way valve in FIG. 3, in which the first interface communicates with the fourth interface, and the second interface communicates with the third interface;
  • FIG. 7 is a schematic diagram of a four-way valve according to yet another embodiment of the present application, wherein the first interface communicates with the second interface, and the third interface communicates with the fourth interface;
  • FIG. 8 is a schematic diagram of the four-way valve according to FIG. 7, wherein the first interface is connected to the third interface, and the second interface and the fourth interface are both disconnected;
  • FIG. 9 is a schematic diagram of the four-way valve according to FIG. 7, wherein the first interface communicates with the fourth interface, and the second interface communicates with the third interface;
  • FIG. 10 is a schematic diagram of a four-way valve according to yet another embodiment of the present application, wherein the first interface communicates with the second interface, and the third interface communicates with the fourth interface;
  • FIG. 11 is a schematic diagram of the four-way valve according to FIG. 10, wherein the first interface, the third interface, and the fourth interface are connected, and the second interface is disconnected;
  • FIG. 12 is a schematic diagram of the four-way valve according to FIG. 10, wherein the first interface communicates with the fourth interface, and the second interface communicates with the third interface;
  • FIG. 13 is a schematic structural diagram of a four-way valve according to another embodiment of the present application, in which the valve core is located in the first position;
  • FIG. 14 is a schematic diagram of the communication structure of the four-way valve in FIG. 13, wherein the valve core is located in the fourth position;
  • 15 is a schematic diagram of the communication structure of the four-way valve in FIG. 13, wherein the valve core is located in the second position;
  • 16 is a schematic diagram of the communication structure of the four-way valve in FIG. 13, wherein the valve core is located in the fifth position;
  • 17 is a schematic diagram of the communication structure of the four-way valve in FIG. 13, wherein the valve core is located in the third position;
  • valve core 18 is a schematic structural view of an air conditioner according to some embodiments of the present application, in which the valve core is located in the first position;
  • FIG. 19 is a schematic structural view of an air conditioner according to some embodiments of the present application, in which the valve core is located in a third position;
  • FIG. 20 is a schematic structural view of an air conditioner according to some embodiments of the present application, in which the valve core is located in the second position;
  • 21 is a schematic structural diagram of an air conditioner according to some embodiments of the present application, in which the valve core is located in the second position, and the third interface is in communication with the fourth interface.
  • Air conditioner 100
  • First interface 101 First interface 101; second interface 102; third interface 103; fourth interface 104;
  • Valve body 1 first side wall 1a; second side wall 1b;
  • Valve chamber 11 first chamber 111; first sub-chamber 1111; third sub-chamber 1112; second chamber 112; third chamber 113; second sub-chamber 1131; fourth sub-chamber 1132;
  • Spool 2 communication portion 21; communication passage 211; first cut-off surface 21a; second cut-off surface 21b;
  • Electromagnetic control part 3
  • Compressor 20 exhaust port 201; return port 202;
  • Throttle element 50
  • the four-way valve 10 according to an embodiment of the present application will first be described below with reference to FIGS. 1-17.
  • a four-way valve 10 includes a valve body 1 and a spool 2.
  • the valve body 1 defines a valve cavity 11, and the valve body 1 is provided with a An interface 101 to a fourth interface 104, the spool 2 is movably disposed in the valve cavity 11 and has a first position to a third position, the spool 2 is provided with a communication portion 21 protruding toward the inner wall of the valve cavity 11,
  • the communication portion 21 is provided with a communication channel 211, the communication portion 21 and the inner wall of the valve cavity 11 define a first chamber 111, a second chamber 112, and a third chamber 113, and the communication passage 211 communicates with the second chamber 112, the third The interface 103 communicates with the second chamber 112.
  • both the first interface 101 and the second interface 102 communicate with the first chamber 111, and the fourth interface 104 communicates with the second chamber 112 so that the third interface 103 and the fourth interface 104 is connected;
  • the first interface 101 communicates with the second chamber 112 through the communication channel 211, so that the first interface 101 communicates with the third interface 103;
  • the second interface 102 communicates with the second chamber 112
  • the first interface 101 and the fourth interface 104 both communicate with the third chamber 113, so that the second interface 102 communicates with the third interface 103, the first The interface 101 and the fourth interface 104 are in communication.
  • the first interface 101, the second interface 102, the third interface 103, and the fourth interface 104 can have a variety of communication methods, which is beneficial to meet the diversified flow switching functions of the air conditioner 100 to the four-way valve 10 ⁇ Request.
  • the air conditioner 100 when the four-way valve 10 is applied to the air conditioner 100, the air conditioner 100 further includes: a compressor 20, an indoor heat exchanger 30, an outdoor heat exchanger 40, and a throttle element 50,
  • the compressor 20 has an exhaust port 201 and a return air port 202.
  • the first end of the indoor heat exchanger 30 is connected to the first end of the outdoor heat exchanger 40 through a throttle element 50.
  • the four-way valve 10 has a first port 101 to a fourth port 104, the first port 101 is connected to the exhaust port 201, the second port 102 is connected to the second end of the outdoor heat exchanger 40, and the third port 103 is connected to the return port 202 Connected, the fourth interface 104 is connected to the second end of the indoor heat exchanger 30; when the compressor 20 is stopped, the first interface 101 is connected to the third interface 103.
  • the spool 2 can move in the left-right direction, as shown in FIGS. 1 and 18, when the spool 2 is in the first position, the first port 101 and the second port 102 are both in communication with the first chamber 111 ,
  • the fourth interface 104 communicates with the second chamber 112, that is, the first interface 101 communicates with the second interface 102, and the third interface 103 communicates with the fourth interface 104, so that the outdoor heat exchanger 40 is changed to a high-pressure side
  • the heat exchanger, the indoor heat exchanger 30 is a low-pressure side heat exchanger, and the air conditioner 100 operates under refrigeration conditions;
  • both the second port 102 and the third port 103 are in communication with the second chamber 112, and the first port 101 and the fourth port 104 are both in communication with the third
  • the chamber 113 communicates so that the indoor heat exchanger 30 is a high-pressure side heat exchanger, the outdoor heat exchanger 40 is a low-pressure side heat exchanger, and the air conditioner 100 operates under heating conditions;
  • the spool 2 moves to the second position, the first port 101, the communication channel 211, the second chamber 112 and the third port 103 are connected, the first The second port 102 and the third port 103 are disconnected from other ports, so that when the compressor 20 is stopped, the exhaust port 201 and the return port 202 of the compressor 20 can be quickly communicated to achieve pressure balance, which can be quickly re-connected.
  • the compressor 20 is started, and the structure is simple and the cost is low.
  • the functions of the four-way valve 10 can be diversified.
  • the four-way valve 10 is used in the air conditioner 100 , Can make the first interface 101, the second interface 102, the third interface 103 and the fourth interface 104 have a variety of communication methods, which is conducive to meeting the diversified requirements of the air conditioner 100 for the flow switching function of the four-way valve 10 .
  • the valve chamber 11 has opposing first side walls 1a and second side walls 1b (as shown in FIG. 13), and the first interface 101 is located at the first The side wall 1a, the second interface 102, the third interface 103, and the fourth interface 104 are all located on the second side wall 1b, and the first sub-chamber 1111 and the first sub-chamber 1111 are defined between the spool 2, the communication portion 21, and the first side wall 1a
  • a third sub-chamber 1112, a fourth sub-chamber 1132 and a second chamber 112 are defined between the spool 2 and the second side wall 1b, wherein the third sub-chamber 1112 and the second A sub-chamber 1111 is located on the same side of the second chamber 112 and communicates to define the first chamber 111, and the second sub-chamber 1131 and the fourth sub-chamber 1132 are located on the same side of the second chamber 112 and communicate with
  • first sub-chamber 1111 and the second sub-chamber 1131 are in communication, and the third sub-chamber 1112 and the fourth sub-chamber 1132 are in communication.
  • the realization of the reversing function of the four-way valve 10 is facilitated, and it is advantageous to make the reversing of the four-way valve 10 reliable.
  • the first interface 101, the first sub-chamber 1111, the second sub-chamber 1131, and the second interface 102 communicate with each other.
  • the interface 103, the second chamber 112 and the fourth interface 104 are connected, so that the outdoor heat exchanger 40 is a high-pressure side heat exchanger, the indoor heat exchanger 30 is a low-pressure side heat exchanger, and the air conditioner 100 operates under refrigeration conditions;
  • the second port 102, the second chamber 112, and the third port 103 communicate with each other, and the first port 101, the third sub-chamber 1112 ,
  • the fourth sub-chamber 1132 and the fourth interface 104 are connected so that the indoor heat exchanger 30 is a high-pressure side heat exchanger, the outdoor heat exchanger 40 is a low-pressure side heat exchanger, and the air conditioner 100 is under heating conditions run;
  • the present application is not limited to this, for example, when the compressor is stopped in the cooling state, as shown in FIG. 15 and FIG. 21, when the spool 2 moves to the second position, the first interface 101, the communication channel 211.
  • the second chamber 112 communicates with the third interface 103, the second interface 102 is disconnected, and the third interface 103 communicates with the fourth interface 104; in another example, when the compressor is shut down in the heating state, when the valve When the core 2 is in the second position, the first interface 101, the communication channel 211, the second chamber 112, and the third interface 103 are in communication, the third interface 103 is disconnected, and the third interface 103 is in communication with the second interface 102.
  • the spool 2 includes a first blocking block 22, a second blocking block 23, a connecting plate 24, a first separating plate 25 and a second separating plate 26, the first blocking
  • the block 22 and the second blocking block 23 are spaced apart in the moving direction of the spool 2 (for example, as shown in FIG. 16, the first blocking block 22 and the second blocking block 23 are spaced apart in the left-right direction), and the connecting plate 24 Connected between the first blocking block 22 and the second blocking block 23, the surface of the connecting plate 24 facing the first side wall 1a is formed with a communicating portion 21 protruding toward the first side wall 1a.
  • the connecting plate 24, the first blocking block 22 and the first side wall 1a define a first sub-chamber 1111, and the communicating portion 21, the connecting plate 24, the second blocking block 23 and the first side wall 1a define a second sub-chamber 1131.
  • the first partition plate 25 and the second partition plate 26 are provided on the surface of the connecting plate 24 away from the first side wall 1 a and spaced in the moving direction of the valve core 2 (For example, as shown in FIG. 16, the first partition plate 25 and the second partition plate 26 are provided on the lower surface of the connecting plate 24 and are spaced apart in the left-right direction), the first partition plate 25 is located at the Between the two partition plates 26 and the first blocking block 22, the first partition plate 25, the second partition plate 26, the connecting plate 24, and the second side wall 1b define a second chamber 112, and the first blocking block 22 , The first partition plate 25, the connecting plate 24 and the second side wall 1b define a third sub-chamber 1112, the second partition plate 26, the second blocking block 23, the connecting plate 24 and the second side wall 1b define The fourth sub-chamber 1132.
  • the structure of the valve core 2 can be made simple and reliable, which is beneficial to the realization of the reversing function of the four-way valve 10.
  • the connecting plate 24 is provided with a first communication port 241 and a second communication port 242 spaced apart in the left-right direction. 24 through the connecting plate 24 in the thickness direction, the first communication port 241 is used to communicate the first sub-chamber 1111 and the second sub-chamber 1131, and the second communication port 242 is used to communicate the third sub-chamber 1112 and the fourth sub-chamber ⁇ 1132 ⁇ Chamber 1132.
  • the first blocking block 22, the second blocking block 23, the connecting plate 24, the communication portion 21, the first partition plate 25, and the second partition plate 26 are integrally formed pieces.
  • the manufacturing of the valve core 2 is simple, redundant assembly parts and connection processes are omitted, the assembly efficiency of the valve core 2 is greatly improved, and the reliability of the operation of the valve core 2 is ensured.
  • the first port 101 is located on the first side wall 1a
  • the second port 102, the third port 103, and the fourth port 104 are located on the second side wall 1b and arranged in sequence
  • the valve body 1 The cross section of can be formed into a circle or a square.
  • the four-way valve 10 is a metal piece.
  • the present application is not limited to this, the internal flow path scheme of the four-way valve 10 may also be as shown in FIGS. 7-9, the main difference from the embodiment in FIG. 1 is that the second interface 102, the fourth interface 104 Located on the first side wall 1a, the first interface 101 and the third interface 103 are located on the second side wall 1b, the specific structure of which will not be described in detail here.
  • the four-way valve 10 further includes a first connection tube 4 and a second connection tube 5.
  • the first connection tube 4 is connected to the second interface 102 and the third interface 103 respectively.
  • a connecting pipe 4 is connected with a first control valve 41 in series
  • a second connecting pipe 5 is connected to a third port 103 and a fourth port 104 respectively
  • a second control valve 51 is connected to the second connecting tube 5 in series.
  • the first control valve 41 and the second control valve 51 communicate with the control system of the air conditioner 100, and the conduction and disconnection of the first control valve 41 and the second control valve 51 can be controlled by the air conditioner 100 The system is independently controlled.
  • the surface of the communication portion 21 facing the first side wall 1a defines a first cut-off surface 21a and a second cut-off surface 21b, the first cut-off surface 21a and the second cut-off surface 21b are defined by the communication passage 211 The end of the first side wall 1a is spaced apart.
  • the upper surface of the communication portion 21 defines a first cut-off surface 21a and a second cut-off surface 21b, and the first cut-off surface 21a and the first The two cutoff surfaces 21b are separated by the upper end of the communication channel 211.
  • the surface of the first partition plate 25 facing the second side wall 1b defines a third cut-off surface 251
  • the surface of the second partition plate 26 facing the second side wall 1b defines a third With four cut-off surfaces 261
  • the spool 2 has a fourth position and a fifth position.
  • the lower surface of the first partition plate 25 defines a third cut-off surface 251
  • the lower surface of the second partition plate 26 defines a fourth cut-off surface 261
  • the spool 2 has a Four positions and fifth position.
  • the first cut-off surface 21a blocks the first port 101
  • the fourth cut-off surface 261 blocks the fourth port 104
  • the first control valve 41 is opened and the second control valve 51 is opened
  • the second interface 102 and the third interface 103 are not connected, so that the first interface 101 and the third interface 103 can be disconnected in the fourth position, the second interface 102 and the third interface 103 are not connected, and the third interface 103 is connected to the fourth interface 104.
  • the second cut-off surface 21b blocks the first port 101
  • the third cut-off surface 251 blocks the second port 102
  • the first control valve 41 opens and the second control valve 51 opens
  • the third interface 103 and the fourth interface 104 are not connected. Therefore, in the fourth position, the first interface 101 and the third interface 103 can be disconnected, the third interface 103 and the fourth interface 104 are not connected, and the second interface 102 and the third interface 103 are connected.
  • the four-way valve 10 includes an electromagnetic control member 3, and the electromagnetic control member 3 is used to drive the spool 2 to move.
  • the electromagnetic control member 3 is used to drive the spool 2 to move.
  • the movement of the spool 2 may also be driven by the pilot valve assembly, and the movement of the spool 2 between the first position, the second position, and the third position may also be achieved.
  • the air conditioner 100 may include: a compressor 20, an indoor heat exchanger 30, an outdoor heat exchanger 40, and a reversing component.
  • the compressor 20 has an exhaust port 201 With the air return port 202, the first end of the indoor heat exchanger 30 is connected to the first end of the outdoor heat exchanger 40 through the throttle element 50.
  • the commutation assembly has a first interface 101 to a fourth interface 104, the first interface 101 is connected to the exhaust port 201, and the second interface 102 is connected to the second end of the outdoor heat exchanger 40, The third interface 103 is connected to the return air port 202, and the fourth interface 104 is connected to the second end of the indoor heat exchanger 30; when the compressor 20 is stopped, the first interface 101 is connected to the third interface 103.
  • the reversing component is a four-way valve 10, which has a first port 101 to a fourth port 104, the first port 101 is connected to the exhaust port 201, and the second port 102 is connected to the second of the outdoor heat exchanger 40
  • the third port 103 is connected to the return port 202, and the fourth port 104 is connected to the second end of the indoor heat exchanger 30; when the compressor 20 is stopped, the first port 101 is connected to the third port 103.
  • the spool 2 can be moved in the left and right directions, when the spool 2 is in the first position, the first port 101 and the second port 102 are both in communication with the first chamber 111, the fourth port 104 communicates with the second chamber 112 so that the outdoor heat exchanger 40 is a high-pressure side heat exchanger, the indoor heat exchanger 30 is a low-pressure side heat exchanger, and the air conditioner 100 operates under refrigeration conditions;
  • both the second port 102 and the third port 103 are in communication with the second chamber 112, and the first port 101 and the fourth port 104 are both in communication with the third
  • the chamber 113 communicates so that the indoor heat exchanger 30 is a high-pressure side heat exchanger, the outdoor heat exchanger 40 is a low-pressure side heat exchanger, and the air conditioner 100 operates under heating conditions;
  • the spool 2 moves to the second position, the first port 101 communicates with the second chamber 112 through the communication channel 211, and communicates with the high-pressure side heat exchanger
  • the second interface 102 or the third interface 103 disconnects the communication with other interfaces, so that when the compressor 20 is stopped, the exhaust port 201 and the return port 202 of the compressor 20 can be quickly communicated to achieve pressure balance, and then can be quickly reconnected.
  • the compressor 20 is started, and the structure is simple and the cost is low.
  • the present application is not limited to this, and the reversing assembly may be composed of multiple pipelines with control valves.
  • the air conditioner 100 of the embodiment of the present application when the compressor 20 is stopped, by connecting the first interface 101 and the third interface 103, when the compressor 20 is stopped, the exhaust port 201 and the return air port of the compressor 20 can be quickly made 202 is connected to achieve pressure balance, so that the compressor 20 can be restarted quickly, and the structure is simple and the cost is low.
  • the second interface 102 and the fourth interface 104 are not in communication.
  • the high pressure side heat exchanger maintains a high pressure state (it can be understood that when the air conditioner 100 is cooled, the high pressure side heat exchanger is the outdoor heat exchanger 40; when the air conditioner 100 During cooling, the high-pressure side heat exchanger is the indoor heat exchanger 30), and by making the second port 102 and the fourth port 104 not communicate when the compressor 20 is stopped, the throttle element 50 can be caused by the pressure difference Still having a certain flow rate, the remaining heat of the high-pressure side heat exchanger can still radiate heat while the low-pressure side heat exchanger can still have the ability to evaporate and absorb heat, thereby improving the overall efficiency of the air conditioner 100.
  • both the second interface 102 and the fourth interface 104 are in a disconnected state. In other words, refrigerant cannot flow out from the second interface 102 and the fourth interface 104.
  • the third interface 103 communicates with the interface connected to the low-pressure side heat exchanger. It should be noted that when the compressor 20 is stopped, the first port 101 communicates with the third port 103, which can quickly connect the exhaust port 201 and the return port 202 of the compressor 20 to achieve pressure balance.
  • the low-pressure side heat exchange The pressure of the refrigerant in the compressor is greater than the pressure of the refrigerant between the discharge port 201 and the return port 202 of the compressor 20, and when the compressor 20 is stopped, the third port 103 is connected to the low-pressure side heat exchanger
  • the connection of the interfaces can increase the pressure difference between the high-pressure side heat exchanger and the low-pressure side heat exchanger, and help to improve the overall efficiency of the air conditioner 100.
  • the air conditioner 100 when the compressor 20 is shut down, the air conditioner 100 is in the cooling mode.
  • the high-pressure side heat exchanger is the outdoor heat exchanger 40
  • the low-pressure side heat exchanger is the indoor heat exchanger. 30, so control the first interface 101 to communicate with the third interface 103 and the third interface 103 to communicate with the fourth interface 104; when the compressor 20 stops, the air conditioner 100 is in the heating mode.
  • the high-pressure side is changed
  • the heat exchanger is an indoor heat exchanger 30, and the low-pressure side heat exchanger is an outdoor heat exchanger 40, so the first interface 101 is controlled to communicate with the third interface 103, and the third interface 103 is communicated with the second interface 102.
  • the throttle element 50 is an electronic expansion valve, a thermal expansion valve, or a capillary tube.
  • the throttle element 50 it is advantageous to ensure the throttling ability of the throttle element 50, and thus to improve the working efficiency of the air conditioner 100.
  • the control method of the air conditioner 100 is the air conditioner 100 according to the above embodiment of the present application.
  • the control method includes: controlling the compressor 20 to start, controlling the first The interface 101 and the third interface 103 are disconnected, and the third interface 103 is connected to the interface of the commutation component connected to the low-pressure side heat exchanger.
  • the air return port 202 of the compressor 20 can suck the refrigerant in the low-pressure side heat exchanger, thereby facilitating This causes the discharge pressure P1 of the compressor 20 to increase rapidly.
  • the first interface 101 and the third interface 103 are connected (of course, it may also be an interface where the first interface 101 and the third interface 103 are connected, and the third interface 103 is connected to the low-pressure side heat exchanger Connected), if the compressor 20 is in cooling operation before shutdown, the outdoor heat exchanger 40 is a high-pressure side heat exchanger, the indoor heat exchanger 30 is a low-pressure side heat exchanger, and the control system of the air conditioner 100 can control the commutation components Connect the third interface 103 and the fourth interface 104 but delay the connection between the first interface 101 and the second interface 102 to enable the compressor 20 to start quickly, and during the start of the compressor 20, the return port 202 of the compressor 20 may be sucked into the room The refrigerant in the heat exchanger 30 is rapidly pressurized;
  • the outdoor heat exchanger 40 is a low-pressure side heat exchanger and the indoor side heat exchanger is a high-pressure side heat exchanger.
  • the control system of the air conditioner 100 can control the commutation component to communicate with the third The interface 103 and the second interface 102 but delay the connection between the first interface 101 and the fourth interface 104 to enable the compressor 20 to start quickly, and during the start of the compressor 20, the air inlet 202 of the compressor 20 may be sucked into the outdoor heat exchanger
  • the refrigerant in 40 is pressurized quickly.
  • the discharge pressure P1 of the compressor 20 and the pressure P2 of the high-pressure side heat exchanger are detected.
  • a pressure sensor may be provided in the flow path of the outdoor heat exchanger 40 and the outdoor heat exchanger 40, respectively, and detected by the pressure sensor
  • the pressure P2 of the high-pressure side heat exchanger when P1 ⁇ P2, controls the first interface 101 to communicate with the interface of the reversing component connected to the high-pressure side heat exchanger.
  • the disconnected first port 101 and the high-pressure side heat exchanger remain connected until P1 ⁇ P2, and then the first port 101 and the high-pressure side of the reversing component are controlled.
  • the interface connected to the heat exchanger is connected; when P1 ⁇ P2, if the compressor 20 is stopped, the first interface 101 and the third interface 103 are connected to balance the pressure between the return port 202 and the exhaust port 201 of the compressor 20, and then The first interface 101 and the third interface 103 are controlled to be disconnected and the compressor 20 is started again. Thereby, it is possible to prevent the refrigerant of the high-pressure side heat exchanger from flowing back to the exhaust port 201 of the compressor 20, thereby contributing to improving the success rate of starting the compressor 20.
  • the first interface 101 and the third interface 103 are controlled to be disconnected, and the third interface 103 and the low-voltage side of the commutation component are connected
  • the interface connected to the heat exchanger when the compressor 20 is started, the air inlet 202 of the compressor 20 can suck the refrigerant in the low-pressure side heat exchanger, thereby helping to quickly increase the discharge pressure P1 of the compressor 20, and
  • P1 ⁇ P2 control the connection between the first interface 101 and the high-pressure side heat exchanger to prevent the refrigerant of the high-pressure side heat exchanger from flowing back to the exhaust port 201 of the compressor 20, thereby helping to improve the compressor 20
  • the success rate of startup when the compressor 20 is controlled to start, the first interface 101 and the third interface 103 are controlled to be disconnected, and the third interface 103 and the low-voltage side of the commutation component are connected
  • the air inlet 202 of the compressor 20 can suck the refrigerant in the low-pressure side heat exchanger, thereby helping to quickly increase the discharge
  • the pressure at the first interface 101 is detected to obtain the discharge pressure P1 of the compressor 20. This facilitates the detection of the discharge pressure P1 of the compressor 20.
  • a pressure sensor may be provided at the first interface 101 to obtain the discharge pressure P1 of the compressor 20.
  • the air conditioner 100 is the air conditioner 100 according to the above embodiment of the present application.
  • the control method includes: controlling the compressor 20 to start, and controlling the first interface 101 and the third interface 103 to be disconnected ,
  • the third interface 103 is connected to the interface of the commutation component connected to the low-pressure side heat exchanger.
  • the control system of the air conditioner 100 can record the working state of cooling or heating before shutdown.
  • the first interface 101 and the third interface 103 are connected (of course, the first interface 101 can also be It is connected to the third interface 103, and the third interface 103 is connected to the interface connected to the low-pressure side heat exchanger), if the compressor 20 is in cooling operation before shutdown, the outdoor heat exchanger 40 is a high-pressure side heat exchanger, and the indoor The heater 30 is a low-pressure side heat exchanger, and the control system of the air conditioner 100 can control the commutation component to communicate with the third interface 103 and the fourth interface 104 but delay the communication between the first interface 101 and the second interface 102 to enable the compressor 20 to start quickly , And when the compressor 20 is started, the return air port 202 of the compressor 20 may be sucked into the refrigerant in the indoor heat exchanger 30 to quickly pressurize;
  • the outdoor heat exchanger 40 is a low-pressure side heat exchanger and the indoor side heat exchanger is a high-pressure side heat exchanger.
  • the control system of the air conditioner 100 can control the commutation component to communicate with the third The interface 103 and the second interface 102 but delay the connection between the first interface 101 and the fourth interface 104 to enable the compressor 20 to start quickly, and when the compressor 20 starts, the air return port 202 of the compressor 20 may be drawn into the outdoor heat exchanger 40 The refrigerant is pressurized quickly.
  • the first interface 101 is controlled to communicate with the interface connected to the high-pressure side heat exchanger. It should be noted that, within t seconds of delaying the connection between the first port 101 and the high-pressure side heat exchanger, the discharge pressure of the compressor 20 continues to increase, and the value of t can be controlled so that the first port 101 and the high-pressure side are controlled. When the interface connected to the heat exchanger is connected, the discharge pressure P1 of the compressor 20 is greater than the pressure P2 of the high-pressure side heat exchanger.
  • the first interface 101 is connected to the interface connected to the high-pressure side heat exchanger, and if the compressor 20 is stopped, the first interface 101 and the third interface 103 are connected to balance the return port of the compressor 20
  • the pressure between 202 and the exhaust port 201 finally controls the disconnection of the first port 101 and the third port 103 and causes the compressor 20 to start again.
  • the first interface 101 and the third interface 103 are controlled to be disconnected, and the third interface 103 and the low-voltage side of the commutation component are connected
  • the interface connected to the heat exchanger the air inlet 202 of the compressor 20 can suck the refrigerant in the low-pressure side heat exchanger, which is beneficial to quickly increase the discharge pressure P1 of the compressor 20, and after t seconds, control the first An interface 101 communicates with the interface of the reversing component connected to the high-pressure side heat exchanger, so that the refrigerant of the high-pressure side heat exchanger can be prevented from flowing back to the exhaust port 201 of the compressor 20, thereby facilitating the startup of the compressor 20 Success rate.
  • t is not too small, so that the connection between the first port 101 and the high-pressure side heat exchanger cannot be guaranteed, and the discharge pressure P1 of the compressor 20 is greater than the pressure P2 of the high-pressure side heat exchanger.
  • t is not too large, so as to avoid making the start-up time of the compressor 20 too long.
  • t may be 1, 3, 5, 8, or 10.
  • control method of the air conditioner 100 is described below with reference to FIGS. 13-21, wherein the reversing component is the four-way valve 10 shown in FIGS. 13-17.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the first position (as shown in FIGS. 13 and 18, the first The control valve 41 is turned off and the second control valve 51 is turned off) to the left to the second position (as shown in FIGS. 15 and 20, the first control valve 41 is turned off and the second control valve 51 is turned off), the first The interface 101 communicates with the second chamber 112 through the communication channel 211 to communicate with the third interface 103, so that when the compressor 20 is stopped, the discharge port 201 and the return port 202 of the compressor 20 can be quickly communicated to achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIGS. 15 and 20) to the right to the fourth position (as shown in FIG. 14), the first The cut-off surface 21a blocks the first port 101, the fourth cut-off surface 261 blocks the fourth port 104, the first control valve 41 is disconnected and the second control valve 51 is opened, the second port 102 and the third port 103 are not conductive and The third interface 103 and the fourth interface 104 are connected, so that during the startup process of the compressor 20, the air return port 202 of the compressor 20 can suck the refrigerant in the indoor heat exchanger 30 to quickly pressurize;
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the third position (as shown in FIGS. 17 and 19, the first control valve 41 is off and the second control valve 51 is off) moves to the second position to the right (as shown in FIGS. 15 and 20, the first control valve 41 is off and the second control valve 51 is off), the first interface 101
  • the communication channel 211 communicates with the second chamber 112 to communicate with the third port 103, so that when the compressor 20 is stopped, the discharge port 201 and the return port 202 of the compressor 20 can be quickly communicated to achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIG. 15) to the left to the fifth position (as shown in FIG. 16), the second cut-off surface 21b blocks the first port 101, the third cut-off surface 251 blocks the second port 102, the first control valve 41 is opened and the second control valve 51 is disconnected, the second port 102 and the third port 103 are conducting, and the third The interface 103 and the fourth interface 104 are not conductive, so that during the startup process of the compressor 20, the air return port 202 of the compressor 20 may suck the refrigerant in the outdoor heat exchanger 40 to quickly pressurize.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the first position (as shown in FIG. 13, the first control valve 41 is turned off and the second control valve 51 is turned off to the left to the second position (as shown in FIGS.
  • the first port 101 communicates with the second chamber 112 through the communication channel 211 to communicate with the third port 103, and the third port 103 communicates with the fourth port 104, so that when the compressor 20 is stopped, it can be quickly
  • the discharge port 201 and the return port 202 of the compressor 20 are communicated to achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIG. 15) to the right to the fourth position (as shown in FIG. 14), and the first cut-off surface 21a
  • the first interface 101 is blocked, the fourth cut-off surface 261 blocks the fourth interface 104, the first control valve 41 is disconnected and the second control valve 51 is opened, the second interface 102 and the third interface 103 are not conductive and the third interface 103 is connected to the fourth interface 104, so that during the startup process of the compressor 20, the air return port 202 of the compressor 20 can suck the refrigerant in the indoor heat exchanger 30 to quickly pressurize;
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the third position (as shown in FIG. 17, the first control valve 41 is opened And the second control valve 51 is disconnected) moves to the second position to the right (as shown in FIG. 17 and controls the first control valve 41 to open and the second control valve 51 to be disconnected), the first interface 101 communicates with the The second chamber 112 communicates with the third port 103, and the second port 102 communicates with the third port 103, so that when the compressor 20 is stopped, the exhaust port 201 and the return port 202 of the compressor 20 can be quickly communicated To achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIG. 15) to the left to the fifth position (as shown in FIG. 16), the second cut-off surface 21b blocks the first port 101, the third cut-off surface 251 blocks the second port 102, the first control valve 41 is opened and the second control valve 51 is disconnected, the second port 102 and the third port 103 are conducting, and the third The interface 103 and the fourth interface 104 are not connected.
  • the air inlet 202 of the compressor 20 may suck the refrigerant in the outdoor heat exchanger 40 to rapidly pressurize.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the first position (see FIGS. 18, the first control valve 41 is turned off and the second control valve 51 is turned off to the left to the second position (as shown in FIGS. 15 and 20, the first control valve 41 is turned off and the second control valve 51 Disconnect), the first port 101 communicates with the second chamber 112 through the communication channel 211 to communicate with the third port 103, so that when the compressor 20 is stopped, the exhaust port 201 and the return port 202 of the compressor 20 can be quickly communicated To achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIGS. 15 and 20) to the right to the fifth position (as shown in FIG. 14), the first The cut-off surface 21a blocks the first port 101, the fourth cut-off surface 261 blocks the fourth port 104, the first control valve 41 is disconnected and the second control valve 51 is opened, the second port 102 and the third port 103 are not conductive and The third interface 103 and the fourth interface 104 are connected, so that during the startup process of the compressor 20, the air return port 202 of the compressor 20 can suck the refrigerant in the indoor heat exchanger 30 to quickly pressurize;
  • the control system of the air conditioner 100 controls the spool 2 from the fourth position (as shown in FIG. 14) to the right to the first position (as shown in FIGS. 13 and 18), thereby making the first interface 101 and The interface of the four-way valve 10 connected to the high-pressure side heat exchanger is in communication.
  • the refrigerant of the outdoor heat exchanger 40 can be prevented from flowing back to the exhaust port 201 of the compressor 20, which is beneficial to increase the success rate of starting the compressor 20.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the third position (as shown in FIGS. 17 and 19, the first control valve 41 is off and the second control valve 51 is off) moves to the second position to the right (as shown in FIGS. 15 and 20, the first control valve 41 is off and the second control valve 51 is off), the first interface 101
  • the communication channel 211 communicates with the second chamber 112 to communicate with the third port 103, so that when the compressor 20 is stopped, the discharge port 201 and the return port 202 of the compressor 20 can be quickly communicated to achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIG. 15) to the left to the fifth position (as shown in FIG. 16), the second cut-off surface 21b blocks the first port 101, the third cut-off surface 251 blocks the second port 102, the first control valve 41 is opened and the second control valve 51 is disconnected, the second port 102 and the third port 103 are conducting, and the third The interface 103 and the fourth interface 104 are not connected.
  • the air inlet 202 of the compressor 20 may suck the refrigerant in the outdoor heat exchanger 40 to rapidly pressurize.
  • the control system of the air conditioner 100 controls the spool 2 from the fifth position to the left to the third position (as shown in FIG. 13), so that the first port 101 and the four-way valve 10 exchange heat with the high pressure side
  • the interface connected to the device is connected.
  • the refrigerant of the indoor heat exchanger 30 can be prevented from flowing back to the exhaust port 201 of the compressor 20, which is beneficial to increase the success rate of starting the compressor 20.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the first position (as shown in FIG. 13, the first control valve 41 is turned off and the second control valve 51 is turned off to the left to the second position (as shown in FIGS.
  • the first port 101 communicates with the second chamber 112 through the communication channel 211 to communicate with the third port 103, and the third port 103 communicates with the fourth port 104, so that when the compressor 20 is stopped, it can be quickly
  • the discharge port 201 and the return port 202 of the compressor 20 are communicated to achieve pressure balance.
  • the spool 2 moves from the second position (as shown in FIG. 15) to the right to the fourth position (as shown in FIG. 14), and the first cut-off surface 21a
  • the first interface 101 is blocked, the fourth cut-off surface 261 blocks the fourth interface 104, the first control valve 41 is disconnected and the second control valve 51 is opened, the second interface 102 and the third interface 103 are not conductive and the third interface 103 is connected to the fourth interface 104, so that during the startup process of the compressor 20, the air return port 202 of the compressor 20 can suck the refrigerant in the indoor heat exchanger 30 to quickly pressurize;
  • the control system of the air conditioner 100 controls the spool 2 from the fourth position (as shown in FIG. 14) to the right to the first position (as shown in FIG. 13), thereby making the first interface 101 and the four-way valve 10 is connected to the interface connected to the high-pressure side heat exchanger.
  • the refrigerant of the outdoor heat exchanger 40 can be prevented from flowing back to the exhaust port 201 of the compressor 20, which is beneficial to increase the success rate of starting the compressor 20.
  • the control system of the air conditioner 100 controls the electromagnetic control member 3 to drive the spool 2 from the third position (as shown in FIG. 17, the first control valve 41 is opened And the second control valve 51 is disconnected) moves to the second position to the right (as shown in FIG. 17 and controls the first control valve 41 to open and the second control valve 51 to be disconnected), the first interface 101 communicates with the The second chamber 112 communicates with the third port 103, and the second port 102 communicates with the third port 103, so that when the compressor 20 is stopped, the exhaust port 201 and the return port 202 of the compressor 20 can be quickly communicated To achieve pressure balance.
  • the spool 2 moves from the second position (shown in FIG. 15) to the left to the fifth position (shown in FIG. 16 where the second cutoff surface 21b seals
  • the first interface 101 is blocked, the third cutoff surface 251 blocks the second interface 102, the first control valve 41 is opened and the second control valve 51 is disconnected, the second interface 102 is connected to the third interface 103, and the third interface 103 It is not connected to the fourth interface 104.
  • the air return port 202 of the compressor 20 may suck the refrigerant in the outdoor heat exchanger 40 to quickly pressurize.
  • the control system of the air conditioner 100 controls the spool 2 from the fifth position to the left to the third position (as shown in FIG. 13), so that the first port 101 and the four-way valve 10 exchange heat with the high pressure side
  • the interface connected to the device is connected.
  • the refrigerant of the indoor heat exchanger 30 can be prevented from flowing back to the exhaust port 201 of the compressor 20, which contributes to improving the success rate of starting the compressor 20.

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Abstract

La présente invention concerne un climatiseur (100) et un procédé de commande pour un climatiseur (100). Le climatiseur (100) comprend : un compresseur (20), le compresseur (20) ayant un orifice d'échappement (201) et un orifice de retour d'air (202) ; un échangeur de chaleur intérieur (30) et un échangeur de chaleur extérieur (40), une première extrémité de l'échangeur de chaleur intérieur (30) étant reliée à une première extrémité de l'échangeur de chaleur extérieur (40) à l'aide d'un élément d'étranglement (50) ; et un ensemble d'inversion, l'ensemble d'inversion ayant des première interface (101) à quatrième interface (104), la première interface (101) étant reliée à l'orifice d'échappement (201) ; la deuxième interface (102) étant reliée à une seconde extrémité de l'échangeur de chaleur extérieur (40), la troisième interface (103) étant reliée à l'orifice d'air de retour (202), la quatrième interface (104) étant reliée à une seconde extrémité de l'échangeur de chaleur intérieur (30), et, lorsque le compresseur (20) est arrêté, la première interface (101) étant en communication avec la troisième interface (103).
PCT/CN2019/086172 2018-10-31 2019-05-09 Climatiseur et procédé de commande pour climatiseur WO2020087903A1 (fr)

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CN201811290369.5 2018-10-31
CN201811290369.5A CN111120689B (zh) 2018-10-31 2018-10-31 空调器及空调器的控制方法

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