WO2018036251A1 - 用于多联机空调的切换装置及具有其的多联机空调 - Google Patents

用于多联机空调的切换装置及具有其的多联机空调 Download PDF

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Publication number
WO2018036251A1
WO2018036251A1 PCT/CN2017/089353 CN2017089353W WO2018036251A1 WO 2018036251 A1 WO2018036251 A1 WO 2018036251A1 CN 2017089353 W CN2017089353 W CN 2017089353W WO 2018036251 A1 WO2018036251 A1 WO 2018036251A1
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WO
WIPO (PCT)
Prior art keywords
internal
switching device
air conditioner
machine interface
internal machine
Prior art date
Application number
PCT/CN2017/089353
Other languages
English (en)
French (fr)
Inventor
钟如江
江志贤
Original Assignee
广东美的暖通设备有限公司
美的集团股份有限公司
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 广东美的暖通设备有限公司, 美的集团股份有限公司 filed Critical 广东美的暖通设备有限公司
Priority to CA3034567A priority Critical patent/CA3034567C/en
Priority to EP17842676.3A priority patent/EP3505849A4/en
Publication of WO2018036251A1 publication Critical patent/WO2018036251A1/zh
Priority to US16/282,313 priority patent/US11022336B2/en

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • 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
    • F25B2400/23—Separators
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2519—On-off valves

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular, to a switching device for a multi-connected air conditioner and a multi-connected air conditioner having the same.
  • the air conditioner switching device can realize separate cooling and heating of different internal machines through the valve body and related control.
  • the number of internal machines that can be connected is relatively limited, generally six interfaces.
  • the capacity is not large enough, and if the size of the box of the switching device is increased proportionally on the existing basis, the entire device will be too large, affecting the use occasion and the installation position.
  • many of the existing small switching devices are foamed inside the casing, so that the entire refrigeration unit cannot be repaired.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. Accordingly, it is an object of the present invention to provide a switching device for a multi-connected air conditioner that does not easily affect the use and installation location.
  • Another object of the present invention is to provide a multi-connected air conditioner having the above switching device.
  • the multi-connected air conditioner includes an external unit, a plurality of internal units having a plurality of first interfaces, and a plurality of second interfaces
  • the switching means including: a case a gas-liquid separator, the gas-liquid separator is disposed in the casing, the gas-liquid separator has an inlet, a first outlet and a second outlet, and the inlet is adapted to be connected to the external machine; a first internal machine interface line, the plurality of first internal machine interface lines are spaced apart in a first direction, wherein the first outlet passes through the plurality of first internal machine interface lines and the plurality The first interfaces are respectively connected; at least one heat exchange component, one end of the heat exchange component is connected to the second outlet; and a plurality of second internal machine interface pipelines, the plurality of second internal machine interface pipelines And the plurality of first internal machine interface conduits are spaced apart in a second direction perpendicular to the first direction, and
  • the switching device for a multi-connected air conditioner of the present invention by arranging the first internal machine interface line and the second internal machine interface line adapted to be connected to the internal machine to be multi-layered, the switching device can be relatively reduced The length in one direction does not affect the use of the switching device and the installation position. Moreover, the gas-liquid separation of the refrigerant is performed by providing a gas-liquid separator It can improve the state of the refrigerant and the noise of the multi-connected air conditioner, which is more conducive to the heating or cooling of the multi-connected air conditioner.
  • the switching device for a multi-line air conditioner further includes: a solenoid valve assembly including a plurality of sets of solenoid valve groups arranged side by side, a first U-shaped tube, and a second U-shaped a tube, each set of the solenoid valve group includes a first single-pass solenoid valve and a second single-pass solenoid valve, the first U-shaped tube is connected to the first outlet, and the first U-shaped tube passes the plurality of The first single-pass solenoid valves are respectively connected to the plurality of first internal machine interface pipes, and the plurality of first internal machine interface pipes are respectively adapted to be
  • the first single-pass solenoid valve is configured to unidirectionally introduce the refrigerant in the first U-shaped tube into the corresponding first internal machine interface line
  • the second single-pass solenoid valve is constructed Suitable for unidirectional introduction of refrigerant in the first internal machine interface line into the external machine, one of the first U-shaped tube and the second U-shaped
  • the heat exchange component is disposed inside the first U-shaped tube and the second U-shaped tube.
  • the switching device for the multi-line air conditioner further includes: a one-way valve assembly disposed under the solenoid valve assembly, the one-way valve assembly including horizontally extending and side by side a plurality of sets of one-way valve groups, each set of the one-way valve block including the first one-way valve and the second adapted to be connected in parallel between the heat exchange component and the second internal machine interface line a one-way valve, the first one-way valve being configured to unidirectionally direct refrigerant of the heat exchange component to the internal machine, the second one-way valve being configured to be suitable for the inner machine The refrigerant is unidirectionally guided to the heat exchange member.
  • the first check valve and the second check valve are arranged up and down.
  • the housing is substantially in the shape of a rectangular parallelepiped
  • the first direction is a length direction of the housing
  • the heat exchange component, the solenoid valve assembly, and the check valve assembly are both disposed on the shell
  • the solenoid valve assembly is disposed above the one-way valve assembly
  • the solenoid valve assembly and the one-way valve assembly are located on one side of the longitudinal direction of the housing
  • the gas-liquid separator and The heat exchange member is disposed on the other side of the longitudinal direction of the casing, and the gas-liquid separator and the heat exchange member are sequentially arranged in a width direction of the casing, and the casing peripheral device
  • the plurality of first internal machine interface conduits comprise a plurality of layers spaced apart in the second direction, the plurality of second internal interface conduits being included in the second The plurality of layers are spaced apart in the direction, and the plurality of first internal machine interface conduits and the plurality of second internal internal interface conduits are spaced apart in the second direction.
  • two adjacent first inner-machine interface pipes are staggered along the first direction
  • two adjacent second inner-machine interface pipes are staggered along the first direction
  • first internal machine interface line and the corresponding second internal machine interface line are in the second One-to-one correspondence in the direction.
  • the gas-liquid separator is adapted to be disposed adjacent to the outer machine.
  • the inner side of the housing is provided with sound insulating cotton.
  • the housing includes a base on which a sink is formed.
  • the housing includes a base that is open at the top and a top that is detachably disposed at the top of the base.
  • a multi-connected air conditioner according to a second aspect of the present invention comprising the switching device for a multi-connected air conditioner according to the above first aspect of the present invention.
  • FIG. 1 is an exploded view of a switching device for an air conditioner according to an embodiment of the present invention
  • FIG 2 is another exploded view of the switching device for the air conditioner shown in Figure 1;
  • Figure 3 is a schematic view showing the assembly of the base, the solenoid valve assembly, the check valve assembly, the gas-liquid separator and the heat exchange component shown in Figure 2;
  • FIG. 4 is a schematic diagram of a switching device for an air conditioner according to an embodiment of the present invention.
  • 61 solenoid valve group; 611: first single-pass solenoid valve; 612: second single-pass solenoid valve;
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the multi-connected air conditioner includes an external unit, a plurality of internal units having a plurality of first interfaces, and a plurality of second interfaces.
  • the external unit is connected to the plurality of internal units through the switching device 100, and the plurality of internal units can be respectively disposed in the plurality of indoors, whereby the switching device 100 can realize separate cooling or heating in different indoors.
  • "a plurality" means two or more unless otherwise stated.
  • a switching device 100 for a multi-connected air conditioner includes a casing 1, a gas-liquid separator 2, a plurality of first internal machine interface pipes 3, At least one heat exchange component 4 and a plurality of second internal machine interface conduits 5.
  • first and second are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the housing 1 functions as a closure and protection for the various components disposed therein.
  • the gas-liquid separator 2 is disposed in the casing 1, and the gas-liquid separator 2 can be used for gas-liquid separation of the gas-liquid two-phase refrigerant entering from the external machine to improve the heating and cooling effects.
  • the gas-liquid separator 2 has an inlet 21, a first outlet 22 and a second outlet 23, and the inlet 21 is adapted to be connected to the external machine, so that the refrigerant entering from the inlet 21 is separated from the refrigerant in the gas-liquid separator 2, respectively The first outlet 22 and the second outlet 23 are discharged.
  • the separation of the gaseous refrigerant from the first outlet 22 and the discharge of the liquid refrigerant from the second outlet 23 will be described as an example.
  • the first outlet 22 is preferably provided in the gas-liquid.
  • the top of the separator 2, the second outlet 23 is preferably provided at the lower portion of the gas-liquid separator 2.
  • the inlet 21 can be in the form of a section of the inlet 21 tube, and one end of the inlet 21 tube preferably extends into the liquid-gas separator to have a better gas-liquid separation effect.
  • One end of the heat exchange member 4 is connected to the second outlet 23 of the gas-liquid separator 2.
  • the plurality of first internal machine interface conduits 3 are spaced apart in a first direction (eg, the length direction in FIG. 1), and the first outlet 22 passes through the plurality of first internal interface conduits 3 and the plurality of first interfaces respectively Connected.
  • a plurality of second internal machine interface conduits 5 are spaced apart in the first direction, wherein the other end of the heat exchange component 4 is coupled to the plurality of second interfaces via a plurality of second internal interface conduits 5, respectively.
  • the internal machine passes through the first interface and the second interface with the first internal machine interface line 3 and the second internal portion of the switching device 100 After the machine interface line 5 is assembled, the circulating flow between the refrigerant internal machine, the first internal machine interface line 3 and the second internal machine interface line 5 can be realized, and the connection between the switching device 100 and the internal machine is facilitated.
  • the plurality of first internal machine interface lines 3 and the plurality of second internal machine interface lines 5 are preferably evenly spaced apart in the first direction.
  • the plurality of second internal machine interface lines 5 and the plurality of first internal machine interface lines 3 are spaced apart in a second direction perpendicular to the first direction.
  • the first internal machine interface line 3 and the corresponding second internal machine interface line 5 ie, the same internal machine connected to the first internal machine interface line 3
  • the first internal machine interface line 3 and the second internal machine interface line 5 are vertically aligned.
  • the first internal machine interface line 3 and the second internal machine interface line 5 connected to the internal machine are arranged in two layers, which relatively reduces the size of the switching device 100 in the first direction.
  • the machine interface lines 5 are spaced apart in the second direction. Thereby, the first internal machine interface line 3 and the second internal machine interface line 5 connected to the internal machine are respectively arranged in multiple layers, which can further reduce the size of the switching device 100 in the first direction, thereby making the whole
  • the structure of the switching device 100 is simple and compact, and the installation position and use occasion of the switching device 100 are expanded.
  • the internal machine may have a first interface and a second interface respectively, the plurality of first internal interface pipelines 3 are corresponding to the plurality of first interfaces, and the plurality of second internal interface conduits 5 and The second interface corresponds one by one.
  • the first internal machine interface line 3 and the second internal machine interface line 5 both extend out of the side wall of the housing 1, and therefore, the "first direction" may be as shown in FIG.
  • the longitudinal direction of the casing 1 and the "second direction” are the height direction of the casing 1 shown in Fig. 1.
  • the length of the entire switching device 100 in the length direction is effectively saved, and the number of internal devices to which the switching device 100 can be connected is relatively expanded, for example, the switching device 100 according to the present invention. It is possible to connect more than 6 internal machines (for example, the switching device 100 can be connected to 16 internal machines in the example of FIG. 1), thereby realizing control of a plurality of rooms.
  • first direction may also be the length direction of the housing 1 shown in FIG. 1
  • second direction is the width direction of the housing 1 shown in FIG. 1, at which time the first internal interface Both the conduit 3 and the second internal interface conduit 5 extend beyond the top wall of the housing 1; alternatively, the "first direction” may also be inclined relative to the length of the housing 1 shown in FIG.
  • specific orientations of the “first direction” and the “second direction” can be specifically set according to the actual assembly requirements of the first internal machine interface line 3 and the second internal machine interface line 5 to better meet the requirements. Practical application and installation location requirements.
  • the switching device 100 for a multi-line air conditioner can be relatively reduced by arranging the first internal machine interface line 3 and the second internal machine interface line 5 adapted to be connected to the internal machine as a plurality of layers.
  • the length of the small switching device 100 in the first direction does not affect the use and installation position of the switching device 100.
  • the gas-liquid separator 2 to perform gas-liquid separation of the refrigerant, the state of the refrigerant and the noise of the multi-connected air conditioner can be improved, which is more advantageous for heating or cooling of the multi-connected air conditioner.
  • the switching device 100 for a multi-line air conditioner further includes: a solenoid valve assembly 6 including a first U-shaped tube 62, a second U-shaped a tube 63, and a plurality of sets of solenoid valve groups 61 arranged side by side, whereby by arranging the plurality of sets of solenoid valve groups 61 side by side, the entire solenoid valve assembly 6 is of a modular design such that the entire structure of the solenoid valve assembly 6 is arranged in an orderly manner compact.
  • each set of solenoid valve group 61 includes a first single-pass solenoid valve 611 and a second single-pass solenoid valve 612 for controlling different flow directions of heating and cooling of the multi-connected air conditioner, the first U-shaped tube 62 and the first The outlets 22 are connected, and the first U-shaped tubes 62 are respectively connected to the plurality of first internal machine interface lines 3 through a plurality of first single-pass solenoid valves 611, and the first single-pass solenoid valve 611 is configured to be the first U-shaped tube
  • the refrigerant in 62 is unidirectionally introduced into the corresponding first internal machine interface line 3, and the refrigerant in the first internal machine interface line 3 cannot enter the first U-shaped tube 62 through the first single-pass solenoid valve 611, and the plurality of An internal machine interface line 3 is adapted to be coupled to the external unit via a plurality of second single-pass solenoid valves 612, respectively, and the second single-pass solenoid valve 612 is configured to accommodate the
  • the gaseous refrigerant separated from the gas-liquid separator 2 enters the first single-pass solenoid valve 611 through the first U-shaped tube 62, and enters the internal machine through the first internal machine interface line 3 to realize heating, after heat exchange
  • the refrigerant then flows back to the external machine through the second internal machine interface line 5; when the multi-line air-conditioning is cooled, the refrigerant flows from the second internal machine interface line 5 to the internal machine and then returns to the second U through the second single-pass solenoid valve 612.
  • the tube 63 is finally returned to the outer machine.
  • connection between the entire solenoid valve assembly 6 and the internal machine may be arranged in a single layer or a multi-layer array according to the size of the actual switching device 100. Thereby the dimensional control between the length and the height of the switching device 100 is balanced.
  • one of the first U-shaped tube 62 and the second U-shaped tube 63 is located in the first U-shaped tube 62 and The inside of the other of the second U-shaped tubes 63.
  • the connection with the plurality of sets of the solenoid valve groups 61 is facilitated, and the structure of the entire solenoid valve assembly 6 is made more compact.
  • the plurality of sets of solenoid valve groups 61 may be located inside the first U-shaped tube 62 and the second U-shaped tube 63 and disposed adjacent to the curved portions of the first U-shaped tube 62 and the second U-shaped tube 63, in the plurality of sets of solenoid valve groups 61
  • the first one-way solenoid valve 611 and the second one-way solenoid valve 612 are connected to the tube walls of the first U-shaped tube 62 and the second U-shaped tube 63 through pipes, respectively.
  • the heat exchange member 4 is provided inside the first U-shaped tube 62 and the second U-shaped tube 63. As shown in FIGS. 1-3, the heat exchange member 4 is located between the ends of the first U-shaped tube 62 and the second U-shaped tube 63, and the internal space of the housing 1 is more fully and reasonably utilized.
  • the heat exchange member 4 may be one or plural.
  • two heat exchange members 4 are sequentially disposed downstream of the gas-liquid separator 2 to achieve better heat exchange and supercooling.
  • heat exchange portions may be respectively disposed on both sides of the heat exchange member 4, and the refrigerant sequentially flows through the two heat exchange portions, and the heat exchange member 4 functions as shown in FIG.
  • the two heat exchange members 4 shown have substantially the same function.
  • a throttle device 9 is provided between the two heat exchange members 4, and the throttle device 9 may be a capillary tube or an electronic expansion valve, but is not limited thereto.
  • the switching device 100 for a multi-line air conditioner further includes: a one-way valve assembly 7, which is disposed below the solenoid valve assembly 6, the one-way valve assembly 7 may be disposed between the solenoid valve assembly 6 and the water receiving tank 111, and the one-way valve assembly 7 includes a plurality of sets of one-way valve groups that are horizontally extended and arranged side by side, whereby by flattening the one-way valve assembly 7, The height of the switching device 100 in the up and down direction is effectively reduced.
  • each set of check valves includes a first check valve 71 and a second check valve 72 adapted to be connected in parallel between the heat exchange component 4 and the second internal machine interface line 5 for controlling multiple connections.
  • the first check valve 71 is configured to guide the refrigerant of the heat exchange component 4 to the internal machine unidirectionally, and the refrigerant in the internal machine cannot enter the heat exchange through the first check valve 71.
  • the component 4, the second check valve 72 is configured to direct the refrigerant of the internal machine to the heat exchange component 4, and the heat exchange component 4 cannot enter the internal machine through the second check valve 72.
  • the entire check valve assembly 7 can be connected during field installation.
  • connection between the entire one-way valve assembly 7 and the internal machine may be arranged in a single layer or a multi-layer array according to the size of the actual switching device 100, thereby balancing the length of the switching device 100 and Size control between heights.
  • the first check valve 71 and the second check valve 72 are arranged up and down, as shown in FIG. Thereby, the size of the entire check valve assembly 7 in the longitudinal direction of the housing 1 can be reduced, so that the entire structure of the switching device 100 is more compact.
  • the pipe connected between the second check valve 72 and the heat exchange member 4 has an extension 8 projecting to the outside of the casing 1, one end of the first U-shaped pipe 62 and the first One end of the two U-shaped tubes 63 may protrude outside the housing 1, respectively.
  • the one end of the first U-shaped tube 62 of the plurality of switching devices 100, the one end of the second U-shaped tube 63, and the extended portion 8 may be respectively connected one by one, thereby realizing
  • the series connection of the plurality of switching devices 100 facilitates the expansion of the number of interfaces of the internal devices.
  • the gas-liquid separator 2 is adapted to be disposed adjacent to the external machine.
  • the gas-liquid separator 2 is located on the side of the casing 1 near the external machine, and the main function is to The gas-liquid two-phase refrigerant entering from the external machine is separated, so that the gaseous refrigerant is discharged from the heating side, and the liquid refrigerant is discharged from the cooling side, thereby achieving better cooling and heating effects.
  • the placement mode of the gas-liquid separator 2 is not limited to a vertical or horizontal type, as long as the device capable of realizing the gas-liquid separation function can be used.
  • the housing 1 is substantially in the shape of a rectangular parallelepiped, and the first direction is the longitudinal direction of the housing 1 shown in FIG. 1, the gas-liquid separator 2,
  • the heat exchange component 4, the solenoid valve assembly 6 and the check valve assembly 7 are all disposed in the housing 1, the solenoid valve assembly 6 is disposed above the check valve assembly 7, and the solenoid valve assembly 6 and the check valve assembly 7 are horizontally arranged.
  • the solenoid valve assembly 6 is preferably located directly above the one-way valve assembly 7 to further increase the compactness of the entire switching device 100, the solenoid valve assembly 6 and the one-way valve assembly 7 being located on one side of the longitudinal direction of the housing 1 (eg , the left side in FIG. 1 ), at this time, the solenoid valve assembly 6 and the check valve assembly 7 may be adjacent to the left side wall of the housing 1 , and the gas-liquid separator 2 and the heat exchange component 4 are disposed in the longitudinal direction of the housing 1 .
  • the other side for example, the right side in FIG.
  • the plurality of first internal machine interface lines 3 comprise a plurality of layers spaced apart in a second direction, each of the first internal machine interface lines 3 comprising at least one of the first internal machine interface tubes Road 3, the plurality of second internal machine interface lines 5 comprise a plurality of layers spaced apart in a second direction, each of the second internal machine interface lines 5 comprising at least one second internal machine interface line 5, and more
  • the layer first internal interface line 3 and the plurality of second internal interface lines 5 are spaced apart in the second direction.
  • the length of the switching device 100 in the first direction can be further reduced.
  • two adjacent first inner machine interface conduits 3 are staggered in a first direction
  • two adjacent second inner interface conduits 5 are staggered in a first direction.
  • the first internal machine interface line 3 and the second internal machine interface line 5 can be arranged more compactly in the first direction, reducing the footprint of the entire switching device 100, thereby further expanding the switching device 100. Use occasions and installation location.
  • the first internal interface line 3 and the second internal interface line 5 are respectively sixteen, and the first internal interface line 3 and the second internal interface line 5 are respectively
  • the utility model comprises two layers, each of which comprises 8 first internal machine interface lines 3 or a second internal machine interface line 5 evenly spaced apart in the longitudinal direction of the casing 1, and the fourth inner layer
  • the machine interface line 3 and the second internal machine interface line 5 are evenly spaced in the height direction of the casing 1, and a set of first internal machine interface lines 3 and second internal machine interface lines connected to the same internal machine 5 is upright and upright, and the two first inner machine interface pipes 3 are staggered along the length direction of the casing 1, and the two second inner machine interface pipes 5 are staggered along the length direction of the casing 1, thereby making the first
  • the inner machine interface line 3 and the second inner machine interface line 5 can be arranged more compactly in the longitudinal direction of the housing 1, reducing the volume of the switching device 100, thereby reducing the footprint of the switching device 100.
  • the housing 1 includes a base 11 that is open at the top and a top cover 12 that is detachably disposed at the top of the base 11.
  • the base 11 serves to support the entire switching device 100.
  • the base 11 is formed with a water tank 111, and the water tank 111 is formed with at least one drain port.
  • the water tank 111 is coupled to the base 11 for centrally switching the condensed water generated during the operation of the device 100 and collecting the water.
  • the condensate is drained from the drain. It can be understood that the number of the drain ports, the setting position, and the like can be determined according to actual needs.
  • the inner side of the casing 1 is provided with soundproof cotton, and the soundproof cotton may be attached to the inner surface of the casing 1.
  • the soundproof cotton may be disposed on at least one of the side wall, the top wall and the bottom wall of the casing 1. on.
  • the housing 1 is a sheet metal member, but is not limited thereto.
  • the housing 1 is provided with an electric control box assembly 91, the electric control box assembly 91 is vertically disposed, and the electric control box assembly 91 is located at the side of the housing 1, for example, the electric control box assembly 91. It can be hung on the side of the casing 1, and is not limited to be fixed to any one side, as long as the entire electric control box assembly 91 can be fixed, so that the electric control box assembly 91 can realize the control function.
  • the electrical control box assembly 91 can be coupled to an electronic control component such as a solenoid valve or the like within the housing 1.
  • the switching device 100 for multi-connected air conditioner according to the embodiment of the present invention, different internal cooling and heating independent control can be realized, and the main principle and implementation manner is that the gas-liquid separator 2 separates the gas-liquid two-phase refrigerant, so that The gaseous refrigerant flows out from the first outlet 22 and flows from the gas side to the corresponding internal machine for heating and heating, and the liquid refrigerant flows out from the second outlet 23 and flows from the liquid side to the corresponding internal machine for cooling, and the control of the different internal machines Individual control is achieved by the corresponding solenoid valve assembly 6 commutation control or the like.
  • the first single-pass solenoid valve 611 corresponding to the heating internal machine is opened (at this time, corresponding to the heating internal machine)
  • the second single-pass solenoid valve 612 is closed, the second single-pass solenoid valve 612 corresponding to the refrigeration internal machine is opened (the first single-pass solenoid valve 611 corresponding to the refrigeration internal machine is closed), and the refrigerant in the external machine is closed.
  • the gas-liquid separator 2 entering the switching device 100 performs gas-liquid separation, and the separated gaseous refrigerant is discharged from the first outlet 22 and then sequentially flows through the first U-shaped tube 62 and the corresponding first single-pass solenoid valve 611.
  • the heat exchanged refrigerant passes through the second internal machine interface line 5 and is returned from the second check valve 72 to the external machine via the second U-shaped tube 63.
  • the separated liquid refrigerant is discharged through the second outlet 23 and then sequentially flows through the heat exchange member 4, the throttle device 9, the heat exchange member 4, the first check valve 71, and the second internal machine interface 5 to enter
  • the internal machine performs cooling, and the heat exchanged refrigerant is returned to the external machine through the second U-shaped tube 63 through the first U-shaped solenoid valve 612 through the first internal machine interface line 3.
  • the switching device 100 for multi-connected air conditioner is advantageous for improving the number of internal machines that can be controlled by the external unit of the entire multi-connected air conditioner, reducing the splicing between the plurality of switching devices 100, and improving the site.
  • the efficiency of the installation, at the same time, the entire switching device 100 is hierarchical and modular, providing great convenience for on-site maintenance.
  • the switching device 100 can be disposed outside the external machine, thereby facilitating maintenance of the switching device 100 and various components in the external machine.
  • a multi-connected air conditioner according to an embodiment of the second aspect of the present invention includes the switching device 100 for a multi-connected air conditioner according to the above-described first aspect of the present invention.

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Abstract

一种用于多联机空调的切换装置（100），包括：壳体（1）、气液分离器（2）、多个第一内机接口管路（3）、至少一个换热部件（4）和多个第二内机接口管路（5），气液分离器（2）具有进口（21）、第一出口（22）和第二出口（23），进口（21）与外机相连；多个第一内机接口管路（3）和多个第二内机接口管路（5）分别在第一方向上间隔开，第一出口（22）通过多个第一内机接口管路（3）与多个第一接口分别相连；多个第二内机接口管路（5）和多个第一内机接口管路（3）在第二方向上间隔开，多个第一内机接口管路（3）和多个第二内机接口管路（5）中的部分与其余的第一内机接口管路（3）和第二内机接口管路（5）在第二方向上间隔开。另外还公开了一种具有该切换装置（100）的多联机空调。

Description

用于多联机空调的切换装置及具有其的多联机空调 技术领域
本发明涉及空调技术领域，尤其是涉及一种用于多联机空调的切换装置及具有其的多联机空调。
背景技术
相关技术中，空调切换装置可以通过阀体及相关控制来实现不同内机的单独制冷制热，然而，受系统设置及结构空间的限制，可连接内机的数量比较有限，一般为六个接口以下，即容量不够大，而若在现有基础上成比例地加大切换装置的箱体尺寸，又会使整个装置过于庞大，影响使用场合及安装位置。另外，现有小型的切换装置很多是发泡在箱体内部，使整个制冷部件无法维修。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明的一个目的在于提出一种用于多联机空调的切换装置，不易影响使用场合及安装位置。
本发明的另一个目的在于提出一种具有上述切换装置的多联机空调。
根据本发明第一方面的用于多联机空调的切换装置，所述多联机空调包括外机、具有多个第一接口和多个第二接口的多个内机，所述切换装置包括：壳体；气液分离器，所述气液分离器设在所述壳体内，所述气液分离器具有进口、第一出口和第二出口，所述进口适于与所述外机相连；多个第一内机接口管路，所述多个第一内机接口管路在第一方向上间隔开，其中所述第一出口通过所述多个第一内机接口管路与所述多个第一接口分别相连；至少一个换热部件，所述换热部件的一端与所述第二出口相连；以及多个第二内机接口管路，所述多个第二内机接口管路和所述多个第一内机接口管路在与所述第一方向垂直的第二方向上间隔开，且所述多个第二内机接口管路在所述第一方向上间隔开，其中所述换热部件的另一端通过所述多个第二内机接口管路与所述多个第二接口分别相连，所述多个第一内机接口管路和所述多个第二内机接口管路中的部分与其余的所述第一内机接口管路和所述第二内机接口管路在所述第二方向上间隔开。
根据本发明的用于多联机空调的切换装置，通过将适于与内机相连的第一内机接口管路和第二内机接口管路布置为多层，可以相对减小切换装置在第一方向上的长度，不会影响切换装置的使用场合及安装位置。而且，通过设置气液分离器对冷媒进行气液分 离，可以改善冷媒的状态及多联机空调的噪音，从而更有利于多联机空调的制热或者制冷。
根据本发明的一些实施例，所述用于多联机空调的切换装置进一步包括：电磁阀组件，所述电磁阀组件包括并排布置的多组电磁阀组、第一U型管和第二U型管，每组所述电磁阀组包括第一单通电磁阀和第二单通电磁阀，所述第一U型管与所述第一出口相连，所述第一U型管通过所述多个第一单通电磁阀分别与所述多个第一内机接口管路相连，所述多个第一内机接口管路分别通过所述多个第二单通电磁阀适于与所述外机相连，所述第一单通电磁阀被构造成将所述第一U型管内的冷媒单向导入对应的所述第一内机接口管路，所述第二单通电磁阀被构造成适于将所述第一内机接口管路内的冷媒单向导入所述外机，所述第一U型管和所述第二U型管中的其中一个位于所述第一U型管和所述第二U型管中的另一个的内侧。
可选地，所述换热部件设在所述第一U型管和所述第二U型管的内侧。
进一步地，所述用于多联机空调的切换装置进一步包括：单向阀组件，所述单向阀组件设在所述电磁阀组件的下方，所述单向阀组件包括水平延伸且并排布置的多组单向阀组，每组所述单向阀组包括适于并联在所述换热部件和所述第二内机接口管路之间的所述第一单向阀和所述第二单向阀，所述第一单向阀被构造成适于将所述换热部件的冷媒单向导向所述内机，所述第二单向阀被构造成适于将所述内机的冷媒单向导向所述换热部件。
可选地，所述第一单向阀和所述第二单向阀上下布置。
具体地，所述壳体大体为长方体形状，所述第一方向为所述壳体的长度方向，所述换热部件、所述电磁阀组件和所述单向阀组件均设在所述壳体内，所述电磁阀组件设在所述单向阀组件的上方，且所述电磁阀组件和所述单向阀组件位于所述壳体的长度方向的一侧，所述气液分离器和所述换热部件设在所述壳体的长度方向的另一侧，且所述气液分离器和所述换热部件在所述壳体的宽度方向上依次排布，所述壳体外设有电控盒组件，所述电控盒组件竖直设置且位于所述壳体的侧面。
根据本发明的一些实施例，所述多个第一内机接口管路包括在所述第二方向上间隔设置的多层，所述多个第二内机接口管路包括在所述第二方向上间隔设置的多层，且所述多层第一内机接口管路和所述多层第二内机接口管路在所述第二方向上间隔开。
可选地，相邻两层所述第一内机接口管路沿所述第一方向交错布置，相邻两层所述第二内机接口管路沿所述第一方向交错布置。
进一步可选地，所述第一内机接口管路与对应的所述第二内机接口管路在所述第二 方向上一一对应。
根据本发明的一些实施例，所述气液分离器适于邻近所述外机设置。
根据本发明的一些实施例，所述壳体的内侧设有隔音棉。
根据本发明的一些实施例，所述壳体包括底座，所述底座上形成有接水槽。
根据本发明的一些实施例，所述壳体包括顶部敞开的底座和可拆卸地设在所述底座顶部的顶盖。
根据本发明第二方面的多联机空调，包括根据本发明上述第一方面的用于多联机空调的切换装置。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本发明实施例的用于空调的切换装置的爆炸图；
图2是图1中所示的用于空调的切换装置的另一个爆炸图；
图3是图2中所示的底座、电磁阀组件、单向阀组件、气液分离器和换热部件的装配示意图；
图4是根据本发明实施例的用于空调的切换装置的示意图。
附图标记：
100：切换装置；
1：壳体；11：底座；111：接水槽；12：顶盖；
2：气液分离器；21：进口；22：第一出口；23：第二出口；
3：第一内机接口管路；4：换热部件；
5：第二内机接口管路；6：电磁阀组件；
61：电磁阀组；611：第一单通电磁阀；612：第二单通电磁阀；
62：第一U型管；63：第二U型管；
7：单向阀组件；71：第一单向阀；72：第二单向阀；
8：延伸段；9：节流装置；91：电控盒组件。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面参考图1-图4描述根据本发明实施例的用于多联机空调(图未示出)的切换装置100。其中，多联机空调包括外机、具有多个第一接口和多个第二接口的多个内机。外机通过切换装置100与多个内机相连，多个内机可以分别设在多个室内，由此，通过切换装置100可以实现不同室内单独制冷或制热。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
如图1和图4所示，根据本发明第一方面实施例的用于多联机空调的切换装置100，包括壳体1、气液分离器2、多个第一内机接口管路3、至少一个换热部件4以及多个第二内机接口管路5。
这里，需要说明的是，在本发明中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。
壳体1对设置在其内的各个部件起到封闭和保护的作用。气液分离器2设在壳体1内，气液分离器2可以用于将从外机进来的气液两相态的冷媒进行气液分离，以提高制热和制冷效果。气液分离器2具有进口21、第一出口22和第二出口23，进口21适于与外机相连，从而从进口21进入的冷媒在气液分离器2中经气液分离后，分别从第一出口22和第二出口23排出。在本申请下面的描述中，以分离出的气态冷媒从第一出口22排出、液态冷媒从第二出口23排出为例进行说明，此时第一出口22优选设在气液 分离器2的顶部，第二出口23优选设在气液分离器2的下部。其中，进口21可以为一段进口21管的形式，该进口21管的一端优选伸入液气分离器内，以具有更好的气液分离效果。
换热部件4的一端与气液分离器2的第二出口23相连。由此，通过将换热部件4连接在气液分离器2的液态冷媒出口的下游，分离出的液态冷媒进入换热部件4，经过换热部件4的热交换以及过冷作用，可以有效保证流经换热部件4的冷媒完全为液态。
多个第一内机接口管路3在第一方向(例如，图1中的长度方向)上间隔开，第一出口22通过多个第一内机接口管路3与多个第一接口分别相连。多个第二内机接口管路5在上述第一方向上间隔开，其中换热部件4的另一端通过多个第二内机接口管路5与多个第二接口分别相连。由此，通过设置第一内机接口管路3和第二内机接口管路5，内机通过第一接口和第二接口与切换装置100的第一内机接口管路3和第二内机接口管路5装配到位后，可以实现冷媒在内机、第一内机接口管路3和第二内机接口管路5之间的循环流动，且方便了切换装置100与内机的连接。多个第一内机接口管路3和多个第二内机接口管路5优选在第一方向上均匀间隔设置。
其中，多个第二内机接口管路5和多个第一内机接口管路3在与第一方向垂直的第二方向上间隔开。可选地，第一内机接口管路3与对应的第二内机接口管路5(即与第一内机接口管路3相连的同一台内机)在第二方向上一一对应(例如在图1的示例中第一内机接口管路3与第二内机接口管路5上下正对)。由此，将与内机相连的第一内机接口管路3和第二内机接口管路5布局为两层，相对减小了切换装置100在第一方向上的尺寸。
多个第一内机接口管路3和多个第二内机接口管路5中的部分(可以是一个，也可以是多个)与其余的第一内机接口管路3和第二内机接口管路5在第二方向上间隔开。由此，将与内机相连的第一内机接口管路3和第二内机接口管路5分别布局为多层，可以进一步减小切换装置100在第一方向上的尺寸，从而使得整个切换装置100的结构简洁、紧凑，扩展了切换装置100的安装位置和使用场合。其中，内机可以分别具有一个第一接口和一个第二接口，多个第一内机接口管路3与多个第一接口一一对应，多个第二内机接口管路5与多个第二接口一一对应。
例如，如图1所示，第一内机接口管路3和第二内机接口管路5均伸出壳体1的侧壁，因此，“第一方向”可以为图1中所示的壳体1的长度方向，“第二方向”为图1中所示的壳体1的高度方向。由此，有效节约了整个切换装置100在长度方向上的长度，且相对扩展了切换装置100可连接的内机的数量，例如，根据本发明的切换装置100 可以连接6台以上的内机(例如在图1的示例中切换装置100可以连接16台内机)，从而实现多个房间的控制。当然，“第一方向”还可以为图1中所示的壳体1的长度方向，而“第二方向”为图1中所示的壳体1的宽度方向，此时第一内机接口管路3和第二内机接口管路5均伸出壳体1的顶壁；或者，“第一方向”也可以相对于图1中所示的壳体1的长度方向倾斜。可以理解的是，“第一方向”、“第二方向”的具体方位可以根据第一内机接口管路3和第二内机接口管路5的实际装配要求具体设置，以更好地满足实际适用场合和安装位置要求。
根据本发明实施例的用于多联机空调的切换装置100，通过将适于与内机相连的第一内机接口管路3和第二内机接口管路5布置为多层，可以相对减小切换装置100在第一方向上的长度，不会影响切换装置100的使用场合及安装位置。而且，通过设置气液分离器2对冷媒进行气液分离，可以改善冷媒的状态及多联机空调的噪音，从而更有利于多联机空调的制热或者制冷。
根据本发明的一些实施例，如图1-图4所示，用于多联机空调的切换装置100进一步包括：电磁阀组件6，电磁阀组件6包括第一U型管62、第二U型管63、以及并排布置的多组电磁阀组61，由此，通过将多组电磁阀组61并排布置，整个电磁阀组件6呈模块化设计，使得电磁阀组件6的整个结构布置有序且紧凑。
具体而言，每组电磁阀组61包括第一单通电磁阀611和第二单通电磁阀612，作用是控制多联机空调制热和制冷的不同流向，第一U型管62与第一出口22相连，第一U型管62通过多个第一单通电磁阀611分别与多个第一内机接口管路3相连，第一单通电磁阀611被构造成将第一U型管62内的冷媒单向导入对应的第一内机接口管路3，而第一内机接口管路3内的冷媒不能通过第一单通电磁阀611进入第一U型管62，多个第一内机接口管路3分别通过多个第二单通电磁阀612适于与外机相连，第二单通电磁阀612被构造成适于将第一内机接口管路3内的冷媒单向导入外机，而外机内的冷媒则不能通过第二单通电磁阀612进入第一内机接口管路3。由此，从气液分离器2分离出的气态冷媒通过第一U型管62进入第一单通电磁阀611，由第一内机接口管路3进入内机实现制热，换热后的冷媒再通过第二内机接口管路5流回外机；当多联机空调制冷时，冷媒由第二内机接口管路5流向内机后经过第二单通电磁阀612回到第二U型管63，最终回到外机。整个电磁阀组件6与内机连接的接管(即第一内机接口管路3和第二内机接口管路5)可以根据实际切换装置100的尺寸设置成单层或多层阵列式分布，从而平衡切换装置100的长度和高度之间的尺寸控制。
如图1所示，第一U型管62和第二U型管63中的其中一个位于第一U型管62和 第二U型管63中的另一个的内侧。由此，通过将第一U型管62和第二U型管63内外布置，方便了与多组电磁阀组61的连接，且使得整个电磁阀组件6的结构更加紧凑。多组电磁阀组61可以位于第一U型管62和第二U型管63的内侧且邻近第一U型管62和第二U型管63的弯曲部设置，多组电磁阀组61中第一单通电磁阀611和第二单通电磁阀612分别通过管路与第一U型管62和第二U型管63的管壁相连。
可选地，换热部件4设在第一U型管62和第二U型管63的内侧。如图1-图3所示，换热部件4位于第一U型管62和第二U型管63的端部之间，更充分且合理地利用了壳体1内部空间。
其中，换热部件4可以为一个，也可以为多个。例如，参照图4，气液分离器2的下游依次设有两个换热部件4，以达到更好的换热及过冷作用。当换热部件4为一个时，可以在该换热部件4的两个侧面分别设置换热部，冷媒依次流经这两个换热部，此时该换热部件4的作用与图4中所示的两个换热部件4的作用大致相同。进一步地，两个换热部件4之间设有节流装置9，节流装置9可以为毛细管或电子膨胀阀，但不限于此。
根据本发明的进一步实施例，如图1所示，用于多联机空调的切换装置100进一步包括：单向阀组件7，单向阀组件7设在电磁阀组件6的下方，单向阀组件7可以设在电磁阀组件6和接水槽111之间，单向阀组件7包括水平延伸且并排布置的多组单向阀组，由此，通过将单向阀组件7进行扁平化设计，可以有效减小切换装置100在上下方向上的高度。
具体而言，每组单向阀组包括适于并联在换热部件4和第二内机接口管路5之间的第一单向阀71和第二单向阀72，作用是控制多联机空调制热和制冷的不同流向，第一单向阀71被构造成适于将换热部件4的冷媒单向导向内机，而内机内的冷媒不能通过第一单向阀71进入换热部件4，第二单向阀72被构造成适于将内机的冷媒单向导向换热部件4，而换热部件4不能通过第二单向阀72进入内机。整个单向阀组件7可以在现场安装时连接。整个单向阀组件7与内机连接的接管(即第二内机接口管路5)可以根据实际切换装置100的尺寸设置成单层或多层阵列式分布，从而平衡切换装置100的长度和高度之间的尺寸控制。
可选地，第一单向阀71和第二单向阀72上下布置，如图1所示。由此，可以减小整个单向阀组件7在壳体1的长度方向上的尺寸，使得切换装置100的整个结构更加紧凑。
如图2-图4所示，连接在第二单向阀72和换热部件4之间的管路具有伸出至壳体1外的延伸段8，第一U型管62的一端和第二U型管63的一端可以分别伸出壳体1外， 当需要连接的内机数量较多时，可以将多个切换装置100的第一U型管62的上述一端、第二U型管63的上述一端、以及延伸段8分别一一对应相连，从而实现了多个切换装置100的串联，方便扩充内机的接口数量。
根据本发明的一些实施例，如图4所示，气液分离器2适于邻近外机设置，此时气液分离器2位于壳体1内的靠近外机的一侧，主要作用是对从外机进来的气液两相态冷媒进行分离，使气态冷媒从制热侧排出，液态冷媒从制冷侧排出，从而实现更佳的制冷与制热效果。其中，气液分离器2的放置方式不限于立式或者卧式，只要能实现气液分离功能的装置均可。
根据本发明的一些具体实施例，如图1和图2所示，壳体1大体为长方体形状，上述第一方向为图1中所示的壳体1的长度方向，气液分离器2、换热部件4、电磁阀组件6和单向阀组件7均设在壳体1内，电磁阀组件6设在单向阀组件7的上方，电磁阀组件6和单向阀组件7均水平布置，且电磁阀组件6优选位于单向阀组件7的正上方，以进一步提高整个切换装置100的紧凑性，电磁阀组件6和单向阀组件7位于壳体1的长度方向的一侧(例如，图1中的左侧)，此时电磁阀组件6和单向阀组件7可以紧邻壳体1的左侧壁，气液分离器2和换热部件4设在壳体1的长度方向的另一侧(例如，图1中的右侧)，且气液分离器2和换热部件4在壳体1的宽度方向上依次排布，此时气液分离器2和换热部件4可以紧邻壳体1的右侧壁。由此，通过采用上述的排布方式，使得整个切换装置100的结构更加紧凑，减小了切换装置100的占用空间，从而更不会影响其使用场合及安装位置。
根据本发明的一些实施例，多个第一内机接口管路3包括在第二方向上间隔设置的多层，每层第一内机接口管路3包括中至少一个第一内机接口管路3，多个第二内机接口管路5包括在第二方向上间隔设置的多层，每层第二内机接口管路5包括中至少一个第二内机接口管路5，且多层第一内机接口管路3和多层第二内机接口管路5在第二方向上间隔开。由此，可以更进一步地减小切换装置100在第一方向上的长度。可选地，相邻两层第一内机接口管路3沿第一方向交错布置，相邻两层第二内机接口管路5沿第一方向交错布置。由此，第一内机接口管路3和第二内机接口管路5可以在第一方向上布置得更加紧凑，减小了整个切换装置100的占用空间，从而进一步扩展了切换装置100的使用场合和安装位置。
例如，在图1的示例中，第一内机接口管路3和第二内机接口管路5分别为十六个，第一内机接口管路3和第二内机接口管路5分别包括两层，每层分别包括在壳体1的长度方向上均匀间隔设置的8个第一内机接口管路3或第二内机接口管路5，四层第一内 机接口管路3和第二内机接口管路5在壳体1的高度方向上均匀间隔设置，与同一内机相连的一组第一内机接口管路3和第二内机接口管路5上下正对，且两层第一内机接口管路3沿壳体1的长度方向交错布置，两层第二内机接口管路5沿壳体1的长度方向交错布置，从而使得第一内机接口管路3和第二内机接口管路5在壳体1的长度方向上可以布置得更加紧凑，减小了切换装置100的体积，进而减小了切换装置100的占用空间。
根据本发明的一些具体实施例，如图1和图2所示，壳体1包括顶部敞开的底座11和可拆卸地设在底座11顶部的顶盖12，底座11起到支承整个切换装置100的作用，底座11上形成有接水槽111，接水槽111上形成有至少一个排水口，此时接水槽111结合在底座11上，用于集中切换装置100工作时产生的冷凝水并将收集到的冷凝水从排水口排出。可以理解的是，排水口的数量以及设置位置等可以根据实际需求来确定。通过将顶盖12可拆卸地连接在底座11上，可以方便进行维修等操作。
进一步地，壳体1的内侧设有隔音棉，隔音棉可以贴设在壳体1的内表面上，例如，隔音棉可以设在壳体1的侧壁、顶壁和底壁中的至少一个上。由此，通过设置隔音棉，可以将整个切换装置100工作时壳体1内的各个部件动作时的声音(例如，电磁阀组件6切换的声音)等封闭在整个壳体1内，降低了噪音，减少切换装置100运行时对外界环境造成的干扰。
可选地，壳体1为钣金件，但不限于此。
进一步地，如图1所示，壳体1外设有电控盒组件91，电控盒组件91竖直设置，且电控盒组件91位于壳体1的侧面，例如，电控盒组件91可以悬挂在壳体1的侧面，不局限固定于任何一个侧面，只要能够固定整个电控盒组件91，使电控盒组件91实现控制功能即可。电控盒组件91可以与壳体1内的电控部件例如电磁阀等连接。
根据本发明实施例的用于多联机空调的切换装置100，可以实现不同内机制冷和制热单独控制，主要原理及实现方式为气液分离器2将气液两相态冷媒进行分离，使得气态冷媒从第一出口22流出并从气侧流向对应的内机进行制热取暖，而液态冷媒从第二出口23流出并从液侧流向对应的内机进行制冷，而不同内机的控制则通过对应的电磁阀组件6换向控制等来实现单独控制。
具体而言，如图4所示，当多个内机中的部分制热、部分制冷时，与制热内机对应的第一单通电磁阀611打开(此时与该制热内机对应的第二单通电磁阀612关闭)、与制冷内机对应的第二单通电磁阀612打开(此时与该制冷内机对应的第一单通电磁阀611关闭)，外机内的冷媒首先进入切换装置100的气液分离器2进行气液分离，分离出的气态冷媒从第一出口22排出后依次流经第一U型管62、对应的第一单通电磁阀611、 第一内机接口管路3后进入内机进行制热取暖，换热后的冷媒再通过第二内机接口管路5由第二单向阀72经第二U型管63回到外机；而分离出的液态冷媒则通过第二出口23排出后依次流经换热部件4、节流装置9、换热部件4、第一单向阀71、第二内机接口管路5后进入内机进行制冷，换热后的冷媒再通过第一内机接口管路3由第二单通电磁阀612经第二U型管63回到外机。
根据本发明实施例的用于多联机空调的切换装置100，有利于提高整个多联机空调的外机所能控制的内机的数量，减少了多个切换装置100之间的拼接，提高了现场安装的效率，同时，整个切换装置100具有层次性、且模块化，为现场维修提供了极大的便利性。另外，切换装置100可以布置在外机外，从而方便了切换装置100和外机内各个部件的维修。
根据本发明第二方面实施例的多联机空调，包括根据本发明上述第一方面实施例的用于多联机空调的切换装置100。
根据本发明实施例的多联机空调的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (14)

  1. 一种用于多联机空调的切换装置，所述多联机空调包括外机、具有多个第一接口和多个第二接口的多个内机，其特征在于，所述切换装置包括：
    壳体；
    气液分离器，所述气液分离器设在所述壳体内，所述气液分离器具有进口、第一出口和第二出口，所述进口适于与所述外机相连；
    多个第一内机接口管路，所述多个第一内机接口管路在第一方向上间隔开，其中所述第一出口通过所述多个第一内机接口管路与所述多个第一接口分别相连；
    至少一个换热部件，所述换热部件的一端与所述第二出口相连；以及
    多个第二内机接口管路，所述多个第二内机接口管路和所述多个第一内机接口管路在与所述第一方向垂直的第二方向上间隔开，且所述多个第二内机接口管路在所述第一方向上间隔开，其中所述换热部件的另一端通过所述多个第二内机接口管路与所述多个第二接口分别相连，所述多个第一内机接口管路和所述多个第二内机接口管路中的部分与其余的所述第一内机接口管路和所述第二内机接口管路在所述第二方向上间隔开。
  2. 根据权利要求1所述的用于多联机空调的切换装置，其特征在于，进一步包括：
    电磁阀组件，所述电磁阀组件包括并排布置的多组电磁阀组、第一U型管和第二U型管，每组所述电磁阀组包括第一单通电磁阀和第二单通电磁阀，所述第一U型管与所述第一出口相连，所述第一U型管通过所述多个第一单通电磁阀分别与所述多个第一内机接口管路相连，所述多个第一内机接口管路分别通过所述多个第二单通电磁阀适于与所述外机相连，所述第一单通电磁阀被构造成将所述第一U型管内的冷媒单向导入对应的所述第一内机接口管路，所述第二单通电磁阀被构造成适于将所述第一内机接口管路内的冷媒单向导入所述外机，所述第一U型管和所述第二U型管中的其中一个位于所述第一U型管和所述第二U型管中的另一个的内侧。
  3. 根据权利要求2所述的用于多联机空调的切换装置，其特征在于，所述换热部件设在所述第一U型管和所述第二U型管的内侧。
  4. 根据权利要求2或3所述的用于多联机空调的切换装置，其特征在于，进一步包括：
    单向阀组件，所述单向阀组件设在所述电磁阀组件的下方，所述单向阀组件包括水平延伸且并排布置的多组单向阀组，每组所述单向阀组包括适于并联在所述换热部件和所述第二内机接口管路之间的所述第一单向阀和所述第二单向阀，所述第一单向阀被构造成适于将所述换热部件的冷媒单向导向所述内机，所述第二单向阀被构造成适于将所 述内机的冷媒单向导向所述换热部件。
  5. 根据权利要求4所述的用于多联机空调的切换装置，其特征在于，所述第一单向阀和所述第二单向阀上下布置。
  6. 根据权利要求4或5所述的用于多联机空调的切换装置，其特征在于，所述壳体大体为长方体形状，所述第一方向为所述壳体的长度方向，
    所述换热部件、所述电磁阀组件和所述单向阀组件均设在所述壳体内，所述电磁阀组件设在所述单向阀组件的上方，且所述电磁阀组件和所述单向阀组件位于所述壳体的长度方向的一侧，所述气液分离器和所述换热部件设在所述壳体的长度方向的另一侧，且所述气液分离器和所述换热部件在所述壳体的宽度方向上依次排布，
    所述壳体外设有电控盒组件，所述电控盒组件竖直设置且位于所述壳体的侧面。
  7. 根据权利要求1-6中任一项所述的用于多联机空调的切换装置，其特征在于，所述多个第一内机接口管路包括在所述第二方向上间隔设置的多层，所述多个第二内机接口管路包括在所述第二方向上间隔设置的多层，且所述多层第一内机接口管路和所述多层第二内机接口管路在所述第二方向上间隔开。
  8. 根据权利要求7所述的用于多联机空调的切换装置，其特征在于，相邻两层所述第一内机接口管路沿所述第一方向交错布置，相邻两层所述第二内机接口管路沿所述第一方向交错布置。
  9. 根据权利要求8所述的用于多联机空调的切换装置，其特征在于，所述第一内机接口管路与对应的所述第二内机接口管路在所述第二方向上一一对应。
  10. 根据权利要求1-9中任一项所述的用于多联机空调的切换装置，其特征在于，所述气液分离器适于邻近所述外机设置。
  11. 根据权利要求1-10中任一项所述的用于多联机空调的切换装置，其特征在于，所述壳体的内侧设有隔音棉。
  12. 根据权利要求1-11中任一项所述的用于多联机空调的切换装置，其特征在于，所述壳体包括底座，所述底座上形成有接水槽。
  13. 根据权利要求1-12中任一项所述的用于多联机空调的切换装置，其特征在于，所述壳体包括顶部敞开的底座和可拆卸地设在所述底座顶部的顶盖。
  14. 一种多联机空调，其特征在于，包括根据权利要求1-13中任一项所述的用于多联机空调的切换装置。
PCT/CN2017/089353 2016-08-23 2017-06-21 用于多联机空调的切换装置及具有其的多联机空调 WO2018036251A1 (zh)

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