CN105091436B - Air-conditioner set and its heating defrosting method - Google Patents
Air-conditioner set and its heating defrosting method Download PDFInfo
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- CN105091436B CN105091436B CN201510531287.5A CN201510531287A CN105091436B CN 105091436 B CN105091436 B CN 105091436B CN 201510531287 A CN201510531287 A CN 201510531287A CN 105091436 B CN105091436 B CN 105091436B
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Abstract
The present invention discloses a kind of air-conditioner set and its heating defrosting method.The air-conditioner set includes multiple outdoor units and the indoor unit (2) connected with outdoor unit by converter (1), multiple outdoor units include the first outdoor unit (3) and the second outdoor unit (4), converter (1) changes the flow direction of refrigerant, and coordinate with the first outdoor unit (3) and the second outdoor unit (4), air-conditioner set is set to form the first working status of the first outdoor unit (3) and the second outdoor unit (4) heating operation, and first one of outdoor unit (3) and the second outdoor unit (4) heating operation, second working status of another defrost operation.Air-conditioner set according to the present invention, can ensure the comfort of indoor environment during air-conditioner set defrost.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air-conditioner set and its heating defrosting method.
Background technology
The defrost of wind-cooling type heat pump air-conditioner set at present, is generally shut down using interior machine, and complete machine is switched to refrigeration mode operation,
As condenser, the high temperature refrigerant discharged by compressor enters outer machine heat exchanger heat release thawing and is attached to heat exchanger outer machine heat exchanger
On frost.
The defrost mode that this indoor unit is shut down, it is maximum the drawbacks of be：After unit enters defrost, main four-way valve commutation,
Indoor unit stops heat supply as evaporator, interior machine, and during defrost, indoor environment temperature, which occurs, to be greatly lowered；Defrost knot
Shu Hou, complete machine are switched to the starting stage of heating operation, and system high pressure is established slowly, and leaving air temp lifting is also relatively slow, causing
During frost, fluctuations in indoor temperature is larger, seriously affects use in winter air-conditioning heating indoor unit environmental amenity.
The content of the invention
A kind of air-conditioner set and its heating defrosting method are provided in the embodiment of the present invention, can ensure air-conditioner set defrost
The comfort of indoor environment in journey.
To achieve the above object, the embodiment of the present invention provides a kind of air-conditioner set, including multiple outdoor units and and outdoor unit
The indoor unit connected by converter, multiple outdoor units include the first outdoor unit and the second outdoor unit, converter conversion refrigerant
Flow direction, and coordinate with the first outdoor unit and the second outdoor unit, air-conditioner set the first outdoor unit of formation and the second outdoor unit is made
First working status of heat operation, and one of the first outdoor unit and the second outdoor unit heating operation, another defrost
Second working status of operation.
Preferably, the first outdoor unit includes the first compressor, First Heat Exchanger and the first four-way valve, the second outdoor unit bag
The second compressor, the second heat exchanger and the second four-way valve are included, indoor unit includes first interface and second interface, and air-conditioner set is in
During the first working status, the outlet of the first compressor and the second compressor is connected to the first interface of indoor unit, indoor unit
Second interface is respectively communicated to the first interface of First Heat Exchanger and the second heat exchanger.
Preferably, the first outdoor unit includes the first compressor, First Heat Exchanger and the first four-way valve, the second outdoor unit bag
The second compressor, the second heat exchanger and the second four-way valve are included, indoor unit includes first interface and second interface, and air-conditioner set is in
During the second working status, the outlet of the first compressor is connected to the second interface of First Heat Exchanger by the first four-way valve, and first
The first interface of heat exchanger and the second interface of indoor unit are connected to the first interface of the second heat exchanger, and the of the second heat exchanger
Two interfaces are respectively communicated to the import of the first compressor and the second compressor, the outlet of the second compressor to the of indoor unit
One interface.
Preferably, the first outdoor unit includes the first compressor, First Heat Exchanger and the first four-way valve, the second outdoor unit bag
The second compressor, the second heat exchanger and the second four-way valve are included, indoor unit includes first interface and second interface, and air-conditioner set is in
During the second working status, for the outlet of the first compressor to the first interface of indoor unit, the outlet of the second compressor passes through
Two four-way valves are connected to the second interface of the second heat exchanger, and the first interface of the second heat exchanger and the second interface of indoor unit are common
The first interface of First Heat Exchanger is connected to, the second interface of First Heat Exchanger is respectively communicated to the first compressor and the second compression
The import of machine.
Preferably, the first outdoor unit includes the first compressor, First Heat Exchanger and the first four-way valve, the second outdoor unit bag
Include the second compressor, the second heat exchanger and the second four-way valve, indoor unit includes first interface and second interface, and converter includes the
After one pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline, the first pipeline and second pipe cross
The first interface of indoor unit is connected to, the 3rd pipeline and the 4th pipeline are connected to the second interface of indoor unit, the 5th pipe after crossing
Road and the 6th pipeline are connected to the first interface of indoor unit after crossing；The outlet of first compressor is respectively communicated to the first four-way valve
First interface and the 5th pipeline, the second interface of the first four-way valve is connected to the second interface of First Heat Exchanger, the first four-way
The import of the 3rd interface and the first compressor of valve is connected to the first pipeline jointly, and the first interface of First Heat Exchanger is connected to
Three pipelines；The outlet of second compressor is respectively communicated to the first interface and the 6th pipeline of the second four-way valve, the second four-way valve
Second interface is connected to the second interface of the second heat exchanger, and the import of the 3rd interface and the second compressor of the second four-way valve is common
Second pipe is connected to, the first interface of the second heat exchanger is connected to the 4th pipeline.
Preferably, being provided with the first solenoid valve on the first pipeline, second solenoid valve, the 3rd pipe are provided with second pipe
The 3rd solenoid valve is provided with road, the 4th solenoid valve is provided with the 4th pipeline, the 5th solenoid valve is provided with the 5th pipeline, the
It is provided with the 6th solenoid valve on six pipelines, is provided with the 7th solenoid valve on the pipeline that crosses of the first pipeline and second pipe, the 5th
The 8th solenoid valve is provided with the pipeline that crosses of pipeline and the 6th pipeline.
Preferably, pass through the first capillary between the 3rd interface of the first four-way valve and the 4th interface of the first four-way valve
Connection, is connected between the 3rd interface of the second four-way valve and the 4th interface of the second four-way valve by the second capillary.
Preferably, it is both provided with shut-off valve at the nozzle position being connected with indoor unit of outdoor unit.
According to another aspect of the present invention, there is provided a kind of heating defrosting method of air-conditioner set, air-conditioner set include the
One outdoor unit, the second outdoor unit and indoor unit, heating defrosting method include：Detect whether to need to carry out defrost；When needing to carry out
During defrost, control refrigerant to flow to by converter, one of the first outdoor unit and the second outdoor unit is run by defrost pattern,
Another is run by heating mode.
Preferably, when needing to carry out defrost, determine to need the outdoor unit for carrying out defrost, when the first outdoor unit and second
When one of outdoor unit needs defrost, make to need the outdoor unit of defrost to be run by defrost pattern, another is according to heating mould
Formula is run；When the first outdoor unit and the second outdoor unit are required to defrost, one of them is set to be run according to defrost pattern first, separately
Outer one is run by heating mode, the outdoor unit that defrost finishes is run by heating mode, does not complete the outdoor unit of defrost
Run by defrost pattern.
Preferably, when machine heating operation outside the first outdoor unit defrost operation, second Room, the refrigerant in the first outdoor unit
The second heat exchanger of the second outdoor unit is flowed into after the first compressor of the first outdoor unit flows through First Heat Exchanger, then from second
The import of the first compressor and second compressor of the second outdoor unit of the first outdoor unit are flow back into after heat exchanger outflow respectively
Import, the refrigerant of the second outdoor unit flow back into the second heat exchanger of the second compressor after the second compressor and indoor unit, so
Afterwards from the second heat exchanger outflow after flow back into respectively the first outdoor unit the first compressor import and the second outdoor unit second
The import of compressor.
Apply the technical scheme of the present invention, air-conditioner set includes multiple outdoor units and connected by converter with outdoor unit
Indoor unit, multiple outdoor units include the first outdoor unit and the second outdoor unit, and converter changes the flow direction of refrigerant, and with it is first outdoor
Machine and the second outdoor unit coordinate, and air-conditioner set is formed the first work shape of the first outdoor unit and the equal heating operation of the second outdoor unit
State, and one of the first outdoor unit and the second outdoor unit heating operation, the second working status of another defrost operation.
The air-conditioner set can keep other outdoor units to be in normal heating work, make needs when there is outdoor unit to need defrost
The outdoor unit of frost carries out defrost, and the outdoor unit that not only ensure that needs defrost can be smoothed out defrost, but also can be by normally heating
The outdoor unit of operation ensures that indoor pusher side normally heats, and avoids shutdown and carries out influencing indoor environment caused by outdoor unit defrost
The problem of proper temperature is spent, improves the comfort level and working performance of air-conditioner set operation.
Brief description of the drawings
Fig. 1 is structure principle chart when being in heating state of the air-conditioner set of the embodiment of the present invention；
Fig. 2 is first structure schematic diagram when being in defrost state of the air-conditioner set of the embodiment of the present invention；
Fig. 3 is the second structure principle chart when being in defrost state of the air-conditioner set of the embodiment of the present invention；
Fig. 4 is the heating defrosting method schematic diagram of the air-conditioner set of the embodiment of the present invention.
Description of reference numerals：1st, converter；2nd, indoor unit；3rd, the first outdoor unit；4th, the second outdoor unit；5th, the first compression
Machine；6th, First Heat Exchanger；7th, the first four-way valve；8th, the second compressor；9th, the second heat exchanger；10th, the second four-way valve；11st, first
Pipeline；12nd, second pipe；13rd, the 3rd pipeline；14th, the 4th pipeline；15th, the 5th pipeline；16th, the 6th pipeline；17th, the first electromagnetism
Valve；18th, second solenoid valve；19th, the 3rd solenoid valve；20th, the 4th solenoid valve；21st, the 5th solenoid valve；22nd, the 6th solenoid valve；23、
7th solenoid valve；24th, the 8th solenoid valve；25th, the first capillary；26th, the second capillary；27th, shut-off valve.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
Referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, air-conditioner set includes multiple outdoor units and and outdoor unit
The indoor unit 2 connected by converter 1, multiple outdoor units include the first outdoor unit 3 and the second outdoor unit 4, converter 1 are changed cold
The flow direction of matchmaker, and coordinate with the first outdoor unit 3 and the second outdoor unit 4, air-conditioner set is formed outside the first outdoor unit 3 and second Room
First working status of 4 equal heating operation of machine, and one of the first outdoor unit 3 and the second outdoor unit 4 heating operation, in addition
Second working status of one defrost operation.
The air-conditioner set can keep other outdoor units to be in normal heating work when there is outdoor unit to need defrost,
Defrost is carried out to the outdoor unit for needing defrost at the same time, the outdoor unit that not only ensure that needs defrost can be smoothed out defrost, but also can
Ensure that indoor pusher side normally heats by the outdoor unit of normal heating operation, avoid shutdown and carry out caused by outdoor unit defrost
The problem of influencing indoor environment temperature suitability degree, improve the comfort level and working performance of air-conditioner set operation.
In the present embodiment, the first outdoor unit 3 include the first compressor 5,6 and first four-way valve 7 of First Heat Exchanger, second
Outdoor unit 4 includes the second compressor 8, the second heat exchanger 9 and the second four-way valve 10, and indoor unit 2 connects including first interface and second
Mouthful, converter 1 includes the first pipeline 11, second pipe 12, the 3rd pipeline 13, the 4th pipeline 14, the 5th pipeline 15 and the 6th pipe
Road 16, the first pipeline 11 and second pipe 12 are connected to the first interface of indoor unit 2, the 3rd pipeline 13 and the 4th pipeline after crossing
14 cross after be connected to the second interface of indoor unit 2, the 5th pipeline 15 and the 6th pipeline 16 are connected to the of indoor unit 2 after crossing
One interface.
The outlet of first compressor 5 is respectively communicated to the first interface and the 5th pipeline 15 of the first four-way valve 7, the first four-way
The second interface of valve 7 is connected to the second interface of First Heat Exchanger 6, the 3rd interface of the first four-way valve 7 and the first compressor 5
Import is connected to the first pipeline 11 jointly, and the first interface of First Heat Exchanger 6 is connected to the 3rd pipeline 13.
The outlet of second compressor 8 is respectively communicated to the first interface and the 6th pipeline 16 of the second four-way valve 10, and the two or four
The second interface of port valve 10 is connected to the second interface of the second heat exchanger 9, the 3rd interface of the second four-way valve 10 and the second compression
The import of machine 8 is connected to second pipe 12 jointly, and the first interface of the second heat exchanger 9 is connected to the 4th pipeline 14.
The first solenoid valve 17 is provided with first pipeline 11, second solenoid valve 18, the 3rd pipe are provided with second pipe 12
The 3rd solenoid valve 19 is provided with road 13, the 4th solenoid valve 20 is provided with the 4th pipeline 14, is provided with the 5th pipeline 15
Five solenoid valves 21, are provided with the 6th solenoid valve 22 on the 6th pipeline 16, and the first pipeline 11 and second pipe 12 cross on pipeline
It is provided with the 7th solenoid valve 23, the 8th solenoid valve 24 is provided with the pipeline that crosses of the 5th pipeline 15 and the 6th pipeline 16.
Situation is connected by adjusting the pipeline in converter 1, can effectively control the flow direction of refrigerant so that an outdoor unit
Run in defrost pattern, another outdoor unit is in heating mode operation and is possibly realized, and can make air-conditioner set at work
Heated in defrost, ensure that the continuity of air-conditioner set work, while it is also ensured that the working performance of outdoor unit.
Certainly, converter 1 herein can be realized by modular mode, the side that can also be directly connected by pipeline
Formula is realized.
With reference to shown in Figure 1, fundamental diagram under heating state is in for the outdoor unit of air-conditioner set.From figure
As can be seen that when air-conditioner set is in the first working status, namely when the outdoor unit of air-conditioner set is in heating state, first
The outlet of 5 and second compressor 8 of compressor is connected to the first interface of indoor unit 2, and the second interface of indoor unit 2 is respectively communicated with
To the first interface of 6 and second heat exchanger 9 of First Heat Exchanger.
When air-conditioner set is in the first working status, the first solenoid valve 17, second solenoid valve 18 in converter 1 and
Seven solenoid valves 23 are closed, and other solenoid valves are opened in converter 1, the second interface of the first four-way valve 7 and the first four-way valve 7
The 3rd orifice, the 3rd orifice of the second interface of the second four-way valve 10 and the second four-way valve 10.
The refrigerant of first outdoor unit 3 flows to the first of indoor unit 2 after the outflow of the first compressor 5 through the 5th pipeline 15
Interface, then flows out from the second interface of indoor unit 2, and the 3rd pipeline 13 of converted device 1 flows into First Heat Exchanger 6, Ran Houjing
3rd interface of the second interface of the first four-way valve 7 and the first four-way valve 7 flows back into the import of the first compressor 5, in this process
In, indoor unit 2 plays condenser, and First Heat Exchanger 6 plays evaporator.
Meanwhile second outdoor unit 4 refrigerant from the second compressor 8 outflow after, flow to indoor unit 2 through the 6th pipeline 16
First interface, then flows out from the second interface of indoor unit 2, and the 4th pipeline 14 of converted device 1 flows into the second heat exchanger 9, so
The import of the second compressor 8, in the process, indoor unit are flow back into by the second interface and the 3rd interface of the second four-way valve 10
2 play condenser, and the second heat exchanger 9 plays evaporator.
At this time, since the first solenoid valve 17,18 and the 7th solenoid valve 23 of second solenoid valve are closed, refrigerant can not be in the first pipe
Flowing in road 11 and second pipe 12, therefore, refrigerant can only enter the import of the first compressor 5 after the outflow of First Heat Exchanger 6,
The import of the second compressor 8 can only be entered after the outflow of the second heat exchanger 9, the first pipeline 11 can not be connected with second pipe 12,
First outdoor unit 3 and the second outdoor unit 4 are in heating operation state, and air-conditioner set has good heating performance.
With reference to shown in Figure 2, when air-conditioner set is in the second working status, namely during defrost working status, this time-division
For two kinds of situations, the present embodiment is in defrost operational mode with the first outdoor unit 3, and the second outdoor unit 4 is in heating operation mode
Exemplified by air-conditioner set the first in the case of defrost working status illustrate.
In the present embodiment, the first outdoor unit 3 is in defrost operational mode, and the second outdoor unit 4 is in heating operation mode,
Exporting for first compressor 5 passes through the second interface that the first four-way valve 7 is connected to First Heat Exchanger 6, and the first of First Heat Exchanger 6
The second interface of interface and indoor unit 2 is connected to the first interface of the second heat exchanger 9, the second interface point of the second heat exchanger 9
It is not connected to the import of the first compressor 5 and the second compressor 8, the outlet of the second compressor 8 to the first of indoor unit 2 connects
Mouthful.
When air-conditioner set is run, the 5th solenoid valve 21 is closed, and the 5th pipeline 15 is blocked, and the 7th solenoid valve 23 is closed,
The first interface of first four-way valve 7 is connected with second interface, the 3rd interface and the 4th orifice, and the second of the second four-way valve 10
Interface and the 3rd orifice.
The refrigerant in the first outdoor unit 3 is after the outflow of the first compressor 5 at this time, first interface through the first four-way valve 7 and
Second interface enters First Heat Exchanger 6, is then flowed out from First Heat Exchanger 6, is flowed through the 3rd pipeline 13 and the 4th pipeline 14
To the second heat exchanger 9, then after the outflow of the second heat exchanger 9, after the second interface of the second four-way valve 10 and the 3rd interface, one
Part flows directly to the import of the second compressor 8, and a part flows back into the first pressure after 12 and first pipeline 11 of second pipe
The import of contracting machine 5.
Meanwhile the second refrigerant in outdoor unit 4 is entered directly into the 6th pipeline 16 after the outflow of the second compressor 8, by
It is obstructed in the 5th pipeline 15 at this time, therefore refrigerant gets in machine 2 through the 6th first interface of the pipeline 16 through indoor unit 2 and is changed
Heat, then flows out from the second interface of indoor unit 2, after converging from the refrigerant that 3 side of the first outdoor unit is flowed out, together through the 4th
Pipeline 14 flows to the second heat exchanger 9, and then after the second interface of the second four-way valve 10 and the 3rd interface, a part directly flows
Be back to the import of the second compressor 8, a part flowed to after 12 and first pipeline 11 of second pipe the first compressor 5 into
Mouthful.
In the above process, First Heat Exchanger 6 and indoor unit 2 are together used as condenser, the first outdoor unit 3 and second Room
Outer machine 4 forms refrigerant circulation structure, and First Heat Exchanger 6 plays condensation in the process of running, and compressed high temperature and pressure is cold
Matchmaker's condensation heat release in First Heat Exchanger 6, carries out defrosting, the refrigerant condensed enters the second heat exchange to First Heat Exchanger 6
Heat absorption is evaporated in device 9, completes the refrigerant circulation of this part.
In the operational process of whole air-conditioner set, it is only necessary to the pipeline conditions of converter 1 are adjusted, change refrigerant
Flow direction, so that it may so that the first outdoor unit 3 enters defrost operational mode and the second outdoor unit and keeps heating operation mode same
Step carries out so that the heating of indoor unit 2 still ensures that normal operation, and indoor heating temperature can be effectively ensured, and improves outer machine
The heating performance of interior machine during defrosting, improves comfort during air-conditioner set operation.
With reference to shown in Figure 3, the second situation during the second working status is in for air-conditioner set.The present embodiment is with
One outdoor unit 3 is in heating operation mode, and the second outdoor unit 4 is in exemplified by defrost operational mode to second of feelings of air-conditioner set
Defrost working status under condition illustrates.
In the present embodiment, to the first interface of indoor unit 2, the second compressor 8 goes out the outlet of the first compressor 5
Mouth is connected to the second interface of the second heat exchanger 9, the first interface and indoor unit 2 of the second heat exchanger 9 by the second four-way valve 10
Second interface be connected to the first interface of First Heat Exchanger 6 jointly, the second interface of First Heat Exchanger 6 is respectively communicated to first
The import of 5 and second compressor 8 of compressor.
Air-conditioner set and the first outdoor unit 3 in the present embodiment are in defrost operational mode, and the second outdoor unit 4 is in heating
The operation principle of air-conditioner set is identical during operational mode, and I will not elaborate.
Preferably, the first capillary is passed through between the 3rd interface of the first four-way valve 7 and the 4th interface of the first four-way valve 7
25 connections, are connected between the 3rd interface of the second four-way valve 10 and the 4th interface of the second four-way valve 10 by the second capillary 26
It is logical.
Shut-off valve 27 is both provided with the nozzle position being connected with indoor unit 2 of outdoor unit.Specifically, it is outdoor first
Each interface that machine 3 is connected to converter 1 is both provided with a shut-off valve 27, and converter 1 is connected in the second outdoor unit 4
Each interface is both provided with a shut-off valve 27, which not only can be in order to overhaul outdoor unit, Er Qieke
When needing to block the corresponding pipeline on converter 1, directly to be blocked from the interface of outdoor unit, reduction can not participate in work
Make the amount of refrigerant circulated, reduce the waste of refrigerant, improve the utilization rate of refrigerant.
Throttle valve is both provided with the first interface side of the first interface side of First Heat Exchanger 6 and the second heat exchanger 9, should
The purpose of throttle valve is, can further improve heat exchange efficiency of 6 and second heat exchanger 9 of First Heat Exchanger in defrosting.
Throttle valve can also be set at the second interface of machine 2 indoors, to further improve the heat-exchange performance of air-conditioner set
Energy.
Outdoor unit can also be three either the combination indoor unit of more than three can also be one or more, it has
The connection structure and operation principle of body are similar with the operation principle of two outdoor units, it is only necessary to according to the number of outdoor unit and interior
The number of machine, which is adjusted converter and solenoid valve, can be achieved, and I will not elaborate.
With reference to shown in Figure 4, according to an embodiment of the invention, air-conditioner set includes the first outdoor unit 3, the second outdoor unit
4 and indoor unit 2, the heating defrosting method of air-conditioner set include：Detect whether to need to carry out defrost；When needing to carry out defrost,
Control refrigerant to flow to by converter 1, one of the first outdoor unit 3 and the second outdoor unit 4 is run by defrost pattern, in addition
One is run by heating mode.
When needing to carry out defrost, determine to need the outdoor unit for carrying out defrost, when the first outdoor unit 3 and the second outdoor unit 4
When one of them needs defrost, make to need the outdoor unit of defrost to be run by defrost pattern, another runs according to heating mode；
When the first outdoor unit 3 and the second outdoor unit 4 are required to defrost, one of them is set to be run according to defrost pattern first, in addition one
It is a to be run by heating mode, the outdoor unit that defrost finishes is run by heating mode, do not complete the outdoor unit of defrost by change
White mode operation.
By the above-mentioned means, it can realize outdoor unit in turn in the case where ensureing the normal heating operation of air-conditioner set
Defrosting, effectively improves the work efficiency of air-conditioner set.
When 3 defrost of the first outdoor unit operation, the second 4 heating operation of outdoor unit, the refrigerant in the first outdoor unit 3 is through first
First compressor 5 of outdoor unit 3 flows through the second heat exchanger 9 that the second outdoor unit 4 is flowed into after First Heat Exchanger 6, then from second
Heat exchanger 9 flows back into the import of the first compressor 5 of the first outdoor unit 3 and the second compression of the second outdoor unit 4 respectively after flowing out
The import of machine 8, the refrigerant of the second outdoor unit 4 flow back into the second of the second compressor 8 after the second compressor 8 and indoor unit 2
Heat exchanger 9, then flows back into the import and second of the first compressor 5 of the first outdoor unit 3 respectively after the outflow of the second heat exchanger 9
The import of second compressor 8 of outdoor unit 4.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (11)
1. a kind of air-conditioner set, it is characterised in that connected including multiple outdoor units and with the outdoor unit by converter (1)
Indoor unit (2), the multiple outdoor unit include the first outdoor unit (3) and the second outdoor unit (4), and the converter (1) changes institute
The flow direction of refrigerant is stated, and is coordinated with first outdoor unit (3) and second outdoor unit (4), forms the air-conditioner set
First outdoor unit (3) and the first working status of second outdoor unit (4) heating operation, and first outdoor
One of machine (3) and second outdoor unit (4) heating operation, the second working status of another defrost operation, wherein,
When the first outdoor unit (3) and the second outdoor unit (4) are required to defrost, one of them is set to be run according to defrost pattern first, separately
Outer one is run according to heating mode, the outdoor unit that defrost finishes is run according to heating mode, does not complete the room of defrost
Outer machine is run according to defrost pattern, realizes the defrosting in turn of outdoor unit.
2. air-conditioner set according to claim 1, it is characterised in that first outdoor unit (3) includes the first compressor
(5), First Heat Exchanger (6) and the first four-way valve (7), second outdoor unit (4) include the second compressor (8), the second heat exchange
Device (9) and the second four-way valve (10), the indoor unit (2) include first interface and second interface, and the air-conditioner set is in the
During one working status, the outlet of first compressor (5) and second compressor (8) is connected to the indoor unit (2)
First interface, the second interface of the indoor unit (2) is respectively communicated to the First Heat Exchanger (6) and second heat exchanger
(9) first interface.
3. air-conditioner set according to claim 1, it is characterised in that first outdoor unit (3) includes the first compressor
(5), First Heat Exchanger (6) and the first four-way valve (7), second outdoor unit (4) include the second compressor (8), the second heat exchange
Device (9) and the second four-way valve (10), the indoor unit (2) include first interface and second interface, and the air-conditioner set is in the
During two working statuses, the outlet of first compressor (5) is connected to the First Heat Exchanger by first four-way valve (7)
(6) second interface, the first interface of the First Heat Exchanger (6) and the second interface of the indoor unit (2) are connected to institute
The first interface of the second heat exchanger (9) is stated, the second interface of second heat exchanger (9) is respectively communicated to first compressor
(5) and second compressor (8) import, the outlet of second compressor (8) to the first of the indoor unit (2)
Interface.
4. air-conditioner set according to claim 1, it is characterised in that first outdoor unit (3) includes the first compressor
(5), First Heat Exchanger (6) and the first four-way valve (7), second outdoor unit (4) include the second compressor (8), the second heat exchange
Device (9) and the second four-way valve (10), the indoor unit (2) include first interface and second interface, and the air-conditioner set is in the
During two working statuses, to the first interface of the indoor unit (2), described second presses the outlet of first compressor (5)
The outlet of contracting machine (8) is connected to the second interface of second heat exchanger (9) by second four-way valve (10), and described second
The first interface of heat exchanger (9) and the second interface of the indoor unit (2) are connected to the first of the First Heat Exchanger (6) jointly
Interface, the second interface of the First Heat Exchanger (6) are respectively communicated to first compressor (5) and second compressor
(8) import.
5. air-conditioner set according to claim 1, it is characterised in that first outdoor unit (3) includes the first compressor
(5), First Heat Exchanger (6) and the first four-way valve (7), second outdoor unit (4) include the second compressor (8), the second heat exchange
Device (9) and the second four-way valve (10), the indoor unit (2) include first interface and second interface, and the converter (1) includes the
One pipeline (11), second pipe (12), the 3rd pipeline (13), the 4th pipeline (14), the 5th pipeline (15) and the 6th pipeline (16),
First pipeline (11) and the second pipe (12) are connected to the first interface of the indoor unit (2) after crossing, and described
Three pipelines (13) and the 4th pipeline (14) are connected to the second interface of the indoor unit (2), the 5th pipeline after crossing
(15) and the 6th pipeline (16) cross after be connected to the first interfaces of the indoor unit (2)；
The outlet of first compressor (5) is respectively communicated to the first interface of first four-way valve (7) and the 5th pipe
Road (15), the second interface of first four-way valve (7) are connected to the second interface of the First Heat Exchanger (6), and described first
The import of the 3rd interface and first compressor (5) of four-way valve (7) is connected to first pipeline (11) jointly, and described
The first interface of one heat exchanger (6) is connected to the 3rd pipeline (13)；
The outlet of second compressor (8) is respectively communicated to the first interface of second four-way valve (10) and the 6th pipe
Road (16), the second interface of second four-way valve (10) are connected to the second interface of second heat exchanger (9), and described second
The import of the 3rd interface and second compressor (8) of four-way valve (10) is connected to the second pipe (12) jointly, described
The first interface of second heat exchanger (9) is connected to the 4th pipeline (14).
6. air-conditioner set according to claim 5, it is characterised in that be provided with the first electromagnetism on first pipeline (11)
Valve (17), is provided with second solenoid valve (18) on the second pipe (12), and the 3rd electricity is provided with the 3rd pipeline (13)
Magnet valve (19), is provided with the 4th solenoid valve (20) on the 4th pipeline (14), the 5th is provided with the 5th pipeline (15)
Solenoid valve (21), is provided with the 6th solenoid valve (22), first pipeline (11) and described second on the 6th pipeline (16)
It is provided with the 7th solenoid valve (23) on the pipeline that crosses of pipeline (12), the 5th pipeline (15) and the 6th pipeline (16)
Cross and be provided with the 8th solenoid valve (24) on pipeline.
7. the air-conditioner set according to any one of claim 2 to 6, it is characterised in that the of first four-way valve (7)
Connected between 4th interface of three interfaces and first four-way valve (7) by the first capillary (25), second four-way valve
(10) connected between the 3rd interface and the 4th interface of second four-way valve (10) by the second capillary (26).
8. air-conditioner set according to any one of claim 1 to 6, it is characterised in that the outdoor unit with the room
Shut-off valve (27) is both provided with the nozzle position of interior machine (2) connection.
9. a kind of heating defrosting method of air-conditioner set, air-conditioner set includes the first outdoor unit (3), the second outdoor unit (4) and room
Interior machine (2), it is characterised in that the heating defrosting method includes：
Detect whether to need to carry out defrost；
When needing to carry out defrost, control refrigerant to flow to by converter (1), make the first outdoor unit (3) and the second outdoor unit (4)
One of them is run by defrost pattern, another is run by heating mode.
10. heating defrosting method according to claim 9, it is characterised in that when needing to carry out defrost, determine to need into
The outdoor unit of row defrost, when one of the first outdoor unit (3) and the second outdoor unit (4) need defrost, makes to need defrost
Outdoor unit is run by defrost pattern, another runs according to heating mode；When the first outdoor unit (3) and the second outdoor unit (4)
When being required to defrost, one of them is set to be run according to defrost pattern first, another is run by heating mode, then makes defrost
The outdoor unit finished is run by heating mode, and the outdoor unit for not completing defrost is run by defrost pattern.
11. heating defrosting method according to claim 9, it is characterised in that when the first outdoor unit (3) defrost is run, the
During two outdoor units (4) heating operation, first compressor (5) of the refrigerant through the first outdoor unit (3) in the first outdoor unit (3) flows through
First Heat Exchanger (6) flows into the second heat exchanger (9) of the second outdoor unit (4) afterwards, then after the second heat exchanger (9) outflow respectively
The import of the first compressor (5) of the first outdoor unit (3) and the import of the second compressor (8) of the second outdoor unit (4) are flow back into,
The refrigerant of second outdoor unit (4) flows back into the second of the second compressor (8) after the second compressor (8) and indoor unit (2) and changes
Hot device (9), then flows back into the import of the first compressor (5) of the first outdoor unit (3) respectively after the second heat exchanger (9) outflow
With the import of the second compressor (8) of the second outdoor unit (4).
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| CN201510531287.5A CN105091436B (en) | 2015-08-26 | 2015-08-26 | Air-conditioner set and its heating defrosting method |
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| CN106871345B (en) * | 2017-02-06 | 2019-07-02 | 邯郸美的制冷设备有限公司 | Do not shut down defrosting system and air conditioner |
| CN108758795B (en) * | 2018-04-11 | 2019-06-11 | 浙江国祥股份有限公司 | A kind of superhigh precision constant temperature and humidity air-conditioning system and control method |
| CN108679780B (en) * | 2018-04-11 | 2019-08-09 | 浙江国祥股份有限公司 | A kind of high-precision constant-temperature constant-moisture air-conditioning system and control method |
| CN109945330B (en) * | 2019-03-22 | 2019-12-24 | 珠海格力电器股份有限公司 | Refrigerating system capable of continuously heating and defrosting control method |
| CN110195921B (en) * | 2019-06-06 | 2020-12-18 | 珠海格力电器股份有限公司 | Defrosting control method and device capable of continuously heating, air conditioning unit and equipment |
| CN117346281B (en) * | 2023-12-04 | 2024-04-09 | 珠海格力电器股份有限公司 | Control method of air conditioning system, air conditioning system and storage medium |
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| KR101013373B1 (en) * | 2003-08-28 | 2011-02-14 | 삼성전자주식회사 | Air Conditioner |
| KR101610836B1 (en) * | 2008-12-16 | 2016-04-11 | 삼성전자 주식회사 | System Air Conditioner And Method for operating the same |
| KR101319687B1 (en) * | 2011-10-27 | 2013-10-17 | 엘지전자 주식회사 | Multi type air conditioner and method of controlling the same |
| CN104534722B (en) * | 2014-12-08 | 2017-10-20 | 刘雄 | Operation of air conditioning systems |
| CN205192010U (en) * | 2015-08-26 | 2016-04-27 | 珠海格力电器股份有限公司 | Air -conditioning unit |
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